Do-it-yourself winch - simple manufacturing methods. Lifting loads without special equipment - how to calculate and make a chain hoist with your own hands Do-it-yourself lifting mechanisms
On the roof or upper floors, and without special devices this is very difficult. We will describe the process of assembling a simple and reliable construction hoist with your own hands, which can lift up to 300 kg alone.
The device assembled according to the above diagram is absolutely mobile and can be brought to a construction site without any problems, even a passenger car with roof rack.
For assembly you will need:
- laminated timber 60x40 mm - 10 m;
- timber 40x40 - 9 m;
- board 25x80 - 16 m;
- rigging block with bearing - 2 pcs.;
- roller on a bearing with an axle - 4 pcs.;
- nylon cable - 12 m;
- plywood 15 mm - less than 1 m 2.
Assembling the guides
The lift is a trolley sliding on rollers between two T-rails. To make them, you need wood good quality humidity not more than 12%: timber 60x40 and board 25x80. Any curvature is undesirable; the tree should not have any defects.
The beam in the guide plays the role of a spacer, setting the distance between the shelves of the brand. It should be 2-3 mm larger than the diameter of the rollers; if necessary, plan the beam along the narrow end and bring it to the desired thickness.
To assemble the guide, you need to insert a beam between the boards and align them along one edge. To ensure that the structure is completely monolithic, it is recommended to coat the contacting edges with PVA glue before assembly.
Fold the parts, align them under the square and secure with clamps. Then fasten the boards and beams with white anodized self-tapping screws 55 mm long, screw them in a checkerboard pattern with a step of 30-35 cm in each row. Both boards need to be fastened with self-tapping screws, so the guides will be less susceptible to warping.
If you want to make the guides longer than the available lumber, lay the beams and boards with an overlap of half the length. If spliced correctly, the structure will be extremely strong; all that remains is to remove internal joints boards to zero for smooth movement of the rollers.
After assembling both guides, cover them with two layers of drying oil. Check the width of the gap under the rollers and, if necessary, adjust with emery cloth. At a distance of 30 mm from the end in the center of the bar, make a through hole with a diameter of 14 mm in the tee. Use it for bolted connection guides with crossbars, place wide washers under the nut and bolt head. To avoid displacement of the diagonals, make a connection with a half-tree hem.
Trolley design
Start by assembling the frame: insert three 75 cm long crossbars between 130 cm pieces of 40x40 mm timber. Install the middle crossbar 40-45 cm from the bottom edge. Fasten the joints with self-tapping screws, or better yet, assemble the frame using tenon joints.
Attach to bottom beam perpendicular to the frame are two pieces of timber 80 cm each, insert a crossbar 75 cm long between their ends and fasten the structure. To strengthen the pallet, make two inclined gussets 60 cm long from timber or boards, cut the edges at an angle of 45°. Attach the gusset to the pallet at a distance of 40 cm from the corner.
Cut a sheet of plywood measuring 83x84 cm and drill holes 20 mm from each edge in 7 cm increments. Through the holes made, screw the bottom of the pallet to the frame with self-tapping screws 45 mm long.
If you plan to increase the load capacity of your cart, the junction of the pallet frame and gussets must be reinforced with overlay plates and angles, and the plywood on the bottom with metal brackets. Attach padlock loops with a tail length of at least 70 mm to the upper corners of the frame. Insert an M14 bolt into the holes and screw a self-locking nut onto it. You need to pass a piece of cable about 2 meters long under the bolts and tie it into a loop, to which the traction rope will be attached through a carabiner or thimble.
Brackets for blocks
On the top and bottom crossbars between the guide posts you need to secure one rigging block. Fastening is possible only through a bolted connection with the obligatory installation of wide washers or, better yet, metal plates under the nuts.
It is recommended to purchase climbing pulleys with a bearing or rigging pulleys with a groove. Most products have a solid body with tight-fitting cheeks, therefore, releasing the cable from the pulley is impossible.
If you're trying to accommodate existing skates, consider adding a retractor lug to them. Roll 6 mm thick steel wire until a loop is formed, and then bend the edges of the structure at the required distance for fastening under the nut to the axis of the block. If you equip the block roller with a swivel, lifting the load will be more convenient and the cable will last longer.
Rollers and their fastening
For smooth sliding of the cart, it should be equipped with four roller wheels installed on the sides 20-25 cm from the corners. Buy rollers with maintenance-free bearings and a single-sided steel axle at least 20 mm long. Instead of standard rollers, ball bearings with a closed cage and a cage width of at least 25 mm or wheels from old roller skates can be used.
The roller axis must be removed and a hole to match its diameter must be drilled in the center of the 40x80 mm plate. Having inserted the axle into the hole, install it strictly perpendicular to the plate and weld it, then make four holes in the corners for the M8 bolt.
How to improve the lift
A very useful addition that significantly increases the safety of use will be the installation of landing pockets for fixing the front wheels of the trolley in a raised position. This is not only very convenient when unloading, but also makes it possible to use the lift yourself.
To install pockets, it is necessary to cut out part of the back board of the guide on which the trolley rollers rest. When lifting, the wheel will slip into the formed opening and stop on a U-shaped block assembled from three bars. To prevent the wheel from accidentally popping out, leave a small lip on the board. After unloading, the trolley can be easily removed from the landing pockets and lowered down, holding it by the cable.
To lift more load at a time, you can strengthen the vertical frame of the cart and install a movable block on it, but this will increase the length of the rope by 1.5 times. The traction rope, in this case, is attached to one of the corners between the guide and the connecting crossbar, passed into a movable block on the trolley, then placed in the fixed upper and lower pulleys.
It is also possible to install the gate as on a well for convenient winding of the traction rope. It can be made from a cut of 100x100 mm timber, brought to a hexagon by a plane. To install the gate, you will need additional L-shaped posts and replacing the bottom crossbar mounting bolts with studs of the appropriate length. The loosened bolts must be used for oblique mating of the racks with the guides.
Using a gate implies increased danger, because a person is always at the lift. To prevent the cart from breaking and falling, it is recommended to install the simplest jumar of climbing equipment next to the upper block.
The higher the walls of a house under construction grow, the more difficult it is to deliver building materials to the site. Renting a crane is expensive, so what can you do? Acquisition solves problems simple lifting mechanisms.
The arsenal of warehouses and large-scale racks includes everything: conveyors, escalators, gravity installations, loaders, cranes.
In private construction, simpler devices are usually used: blocks, hoists, winches and jacks. Some means are capable of moving the load only vertically, while others, if necessary, will pull it upward, horizontally, and even diagonally.
Winning on the rise equals losing
The first assistant at a construction site is a block, a wheel with a rope running along a groove or groove of the rim. The device allows you to lift and lower the load with less effort. Fix the axis of the block higher, and pull the rope, lift bricks, mortar, etc. onto the platform, using your muscles and leaning with all your weight.
However, in this way it is already quite difficult to lift 100 kg. This is where a chain hoist comes to the rescue - a device consisting of several blocks.
Pulley hoist gives a gain in strength at the expense of a loss in distance. That is, when a heavy load needs to be lifted on a rope to the level of the second floor using a pulley, the same amount of force will be expended as when lifting half of this load, but to the level of the third floor. When it comes to large loads, about a hundredweight or more, a pulley block, also known as a power block, becomes indispensable.
Design of the chain hoist
The simplest pulley system consists of two blocks connected by one rope. One end of it is fixed to the upper beam, then the rope goes through the groove of the lower movable block, then the upper fixed block. A fixed pulley attached to the beam allows you to conveniently pull the free end of the rope.
The lower movable block holds the load, like on a swing, on two ropes. Lifting requires half the effort of the weight being lifted. The effect is obtained by doubling the length of the rope that will have to be pulled.
A pulley, consisting of two movable and two fixed blocks, combined in pairs, already gives a quadruple gain in strength, etc. There are other ways to connect blocks. For example, the sequential connection of several movable blocks with one fixed one gives a more significant gain in strength. There is no need to make such lifting devices yourself; they are commercially available.
Choosing a hoist
Manual chain hoist, a small-sized lifting device, allows you to lift loads weighing up to 5 tons using only muscle strength. When choosing, first of all, you should focus on the load capacity. By the way, there are hoists with a built-in power unit - a pulley block - and without it.
Of course, when choosing a hoist, you need to take into account the tasks at hand. IN mechanical models chain lengths range from 1.5 to 12 m, so the lifting height matters. Also, of course, the weight of the hoist itself is important, which determines not only the possibility of its installation on a beam, but also the ease of transportation. Lightweight lever hand hoists weigh up to 20 kg. And purchasing a carriage for a hoist gives you some flexibility. The carriage is suspended on I-beam and moves the hoist along it along with the load in a horizontal plane.
Rock or pull
A manual hoist has modest dimensions and consists of a drum with a wound cable, a transmission mechanism and a drive.
According to the type of transmission mechanism, hoists are divided into worm and gear. It is worth noting that worm gear gives a greater gain in strength, but due to friction of parts it breaks more often. The gear mechanism has proven to be more reliable.
According to the type of drive mechanism, they are distinguished lever and chain hoists. In the case of a lever drive, lifting occurs due to the oscillatory movements of the drive lever, carried out manually. Chain hoist has two chains, traction and cargo. The device is suspended on a beam, the slings are attached to a hook, and the worker pulls the traction chain until the load is raised to the desired height. Feature modern designs is a new patented mechanism that allows the worker to be away from the load being lifted.
Electric traction
Nowadays, in lifting equipment, along with muscle power, electric traction is also widely used, it allows you to save physical strength for other work. The speed of transportation using electric lifting equipment is significantly higher than with manual labor, which leads to a significant reduction in construction time. However, with small volumes of work, the cost of lifting devices operating from the network is sometimes not adequate to the resulting gain. And there is not always electricity available at a construction site, at least in excess of capacity.
Winch power
The so-called “laying” (moving a load by dragging) gave its name to the device of the same name. But by hanging a modern winch, it can also be used to lift loads.
On sale you will find several options for hand winches - drum, lever, with a mounting and traction mechanism... Whatever the traction mechanism is at the heart of the hand winch, the selection criteria are always the same - load capacity and cable length. Sometimes winches are sold without a cable, then the characteristics indicate such a parameter as rope capacity. An important parameter is the traction force, which shows the capabilities of the device for horizontal movement of loads. As a rule, the tractive effort is greater than the carrying capacity.
Manual drum winch
The simplest version of the winch design consists of a housing, two plain bearings, a drum with a cable and a drive handle. The gain in strength occurs due to the use of an unequal-armed lever, a gate. If a conventional lever lifts the load by the stroke of the arm, then the collar lifts the load by the available length of the cable. The force arm of such a winch is the distance from the axis to the handle, the load arm is the distance from the axis to the rope winding circle. One shoulder can be 2-3 times longer than the other, and accordingly this will be the gain in strength. Based on the type of transmission, drum winches are divided into gear and worm. A special feature of their use is the need to attach them to a solid base.
Manual lever winch
The lever winch also has a drum on which the cable is wound, although this drum is of a smaller diameter. But this is not the main difference. The drive for winding the cable onto the drum is carried out here using a ratchet mechanism (or ratchet), that is, when making rocking movements with a lever handle.
These devices are compact, convenient for use in hard to reach places. Another “plus” is that rigid fixation of the body is not required. But there is also a “minus” of lever winches - in terms of cable length, they are significantly inferior to other models.
Winch with mounting and traction mechanism (MTM)
The MTM winch does not have a drum. The cable is passed through its entire body, and both ends come out. Inside there are special cams that move the cable and create the necessary force when swinging the lever handle.
This thing is interesting for its versatility. By hooking the winch body onto any stationary structure, using such a device you can drag loads horizontally or inclined plane To lift heavy objects, a winch with MTM is attached to the beam. The device is also suitable for dismantling works(for example, demolition of structures) or even uprooting of stumps. The disadvantage of MTM winches is their increased sensitivity to abrasive wear, because contamination of the mechanism leads to its rapid failure.
Two words about the jack
In construction, jacks are used to lift and lower loads to small heights. different types. Yes, installation rack and pinion jacks They can have several gear levels and have a large load capacity. In addition, thanks to the narrow grip or fang, they are able to lift directly from the surface of the earth.
Screw jacks have the least capacity to hold loads, but have a high lifting height. One of the varieties screw jack- shrinkage compensator - used to regulate the correct shrinkage of a log house.
In a hydraulic jack, the lifting of the load occurs due to the pressure of the fluid exerted on the piston. The pressure is generated by the pump, which requires less muscle effort and a smooth lifting speed.
Original Xiaomi Mijia Doctor Bay Dental Foss Portable Selects Teeth…
The weight of objects can be such that one, or even five people, cannot move them manually, but it is necessary. In such cases, a homemade device for lifting or moving heavy objects will come in handy. A hand winch is the most popular device in this business. It’s not at all difficult to make a manual winch for a garage with your own hands, even at home. But first you need a calculation and a drawing of the mechanism.
What the pulley for lifting loads and the construction crane have in common is the use of the idea of increasing force - the rule of leverage. In order to balance the load on the short side of the lever, you need to apply less force to its long side to the extent that the short arm is less than the long one. The ratio of forces at the ends of the lever is called the gear ratio.
You can balance and even lift a weight with an effort less than its weight, but the path made by the end of a long lever will be longer than that of a short one, just as less force was applied to lift it. There is no gain in work (F1*L1=F2*L2), but this is not required.
The use of Archimedes' principle is implemented in different lifting mechanisms, and how depends on the purpose of the lift. Designs differ in gear ratio, principle of force transfer, mobility, strength, and energy used. Most popular for self-made types:
- chain hoists;
- drum structures;
- lever mechanism.
To choose the type of device needed for specific work, it is worth familiarizing yourself with their capabilities and limitations.
Easier than this moving device heavy objects there is only scrap metal. Main element- a wheel with a chamfer in the middle of the outer surface, the axis of which is fixed to ceiling beam. You can throw a hoist over it, and the lift with a gear ratio of 1 to 1 is ready. To increase the leverage, let's pass the hoist through another loose wheel, the axis of which is connected to the load, and fix the hoist at the top of the structure.
The gear ratio will become equal to 2. Now let's attach another wheel to the ceiling, and pass the end of the hoist through it, securing it to the axis of the lower wheel. The gear ratio will become equal to 3. And so on, by adding one wheel at a time and changing the location of the hoist attachment, you can increase the gear ratio.
The location of the wheels relative to each other may be different.
The most compact designs are those with single-axle wheels. The design of such devices has two wheel holders. Having studied the drawings of the chain hoist, it will not be difficult to assemble it with your own hands. You will need two clips:
The end of the hoist is fixed to one of the clips.
Pulley hoists also have disadvantages. To increase the gear ratio by 1, you need to add one wheel each time, as a result the weight of the mechanism increases. In addition, bending the cable on each wheel requires force, reducing the efficiency of the device. You can reduce these losses by increasing the diameter of the wheels, but at the same time there will be an increase in the weight and dimensions of the pulley. Other types of lifts do not have these disadvantages.
The principle of operation of winches resembles a simple lever fixed at a fulcrum. If the short arm of the lever is the surface of the cylinder, and the load is attached to it by a cable, you will get a winch with a gear ratio equal to the ratio of the length of the lever and the radius of the cylinder. To prevent reverse rotation, a ratcheting mechanism with a spring-loaded pawl is installed on the axis - a ratchet. You can assemble such a hand winch with your own hands according to the drawing:
However, the high gear ratio of the system will require a very long handle, which is inconvenient. The solution is found in two types of drum winches that increase gear ratio using gears or worm gears.
How to make a winch with your own hands using a worm gear can be seen in the drawing:
A ratchet is not needed in this design; the gear ratio, when the worm flange passes over each gear tooth, is equal to the number of gear teeth multiplied by the ratio of the length of the handle to the radius of the worm. But significant drawback there will be friction between the teeth and the comb. The mechanism requires constant lubrication.
A gearbox made of gears operates with much less friction. Using the principle of transmitting force through a pair of gears different diameters The easiest way to make a manual drum winch with your own hands is this:
Please note that a stopper is required in such devices. This design is used for small heights or lengths of cargo movement. A cable guide will help increase the movement distance by evenly distributing the cable along the length of the cylinder. The easiest way to get the result is to use a spring-loaded plate or rod that presses the cable to the drum:
The most popular use for lever jacks is as a car jack. As universal device it is used less frequently, since the lifting height is small and limited.
The lifting of the load occurs as a result of repeated small movements of the platform between fixed positions on the rail. IN household rarely finds use. Positive quality lever systems are reliable and durable.
At home, you can use improvised materials and ready-made transfer units. For example, the ratchet used in a KAMAZ vehicle to equalize the braking force is a ready-made worm gear mechanism.
You can get rid of manual lifting for a long time if you assemble the motorized winch system with your own hands for work once. To do this, you need to put a gear on the winch drive axis, connecting it with a chain to the chainsaw drive sprocket on a rigid housing structure.
Combining block mechanisms with drum winches, you can work by compensating for the shortcomings of each type of lift. For example, pulley hoists do not provide a lock that prevents reverse movement of the hoist, but drum swans eliminate this very simply. But the angle between the lifting force vector and the weight vector of the pulley can be almost anything, which winches cannot boast of.
You can use purchased lifts on the farm, but, as a rule, winches are needed where stores are far away - and always urgently. It's worth looking in the garage for some parts to get out of the situation.
A person is not very strong for lifting large loads, but he has come up with many mechanisms that simplify this process, and in this article we will discuss pulleys: the purpose and design of such systems, and we will also try to make the simplest version of such a device with our own hands.
A cargo pulley is a system consisting of ropes and blocks, thanks to which you can gain effective strength while losing in length. The principle is quite simple. In length we lose exactly as many times as we win in strength. Thanks to this golden rule of mechanics, large masses can be built without much effort. Which, in principle, is not so critical. Let's give an example. Now you have won 8 times in strength, and you will have to stretch a rope 8 meters long to lift the object to a height of 1 meter.
The use of such devices will cost you less than renting a crane, and besides, you can control the gain in strength yourself. The pulley has two different sides: one of them is fixed, which is attached to the support, and the other is movable, which clings to the load itself. The gain in strength comes from moving blocks, which are attached to the moving side of the pulley. The fixed part serves only to change the trajectory of the rope itself.
Types of pulleys are distinguished by complexity, parity and multiplicity. In terms of complexity there are simple and complex mechanisms, and the multiplicity denotes the multiplication of strength, that is, if the multiplicity is 4, then theoretically you gain 4 times in strength. Also rarely, but still used, a high-speed chain hoist is used; this type gives a gain in the speed of moving loads at a very low speed of the drive elements.
Let's first consider a simple assembly pulley. It can be obtained by adding blocks to a support and a load. To get an odd mechanism, you need to secure the end of the rope to a moving point of the load, and to get an even one, we fasten the rope to a support. When adding a block, we get +2 to strength, and a moving point gives +1, respectively. For example, to get a pulley for a winch with a multiplicity of 2, you need to secure the end of the rope to a support and use one block that is attached to the load. And we will have an even type of device.
The operating principle of a chain hoist with a multiplicity of 3 looks different. Here the end of the rope is attached to the load, and two rollers are used, one of which we attach to the support, and the other to the load. This type of mechanism gives a gain in strength of 3 times, this is an odd option. To understand what the gain in strength will be, you can use simple rule: how many ropes come from the load, such is our gain in strength. Typically, pulleys with a hook are used, on which, in fact, the load is attached; it is a mistake to think that it is just a block and a rope.
Now we will find out how a complex type chain hoist works. This name refers to a mechanism where several simple options given cargo device, they pull each other. The gain in strength of such constructions is calculated by multiplying their multiplicities. For example, we pull one mechanism with a multiplicity of 4, and another with a multiplicity of 2, then the theoretical gain in force will be equal to 8. All of the above calculations take place only for ideal systems that have no friction force, but in practice things are different .
In each of the blocks there is a small loss in power due to friction, since it is still spent on overcoming the friction force. In order to reduce friction, it is necessary to remember: the larger the bend radius of the rope, the less frictional force will be. It is best to use rollers with a larger radius where possible. When using carabiners, you should make a block of identical options, but rollers are much more effective than carabiners, since the loss on them is 5-30%, but on carabiners it is up to 50%. It is also useful to know that the most effective block must be placed closer to the load to obtain maximum effect.
How do we calculate the real gain in power? To do this, we need to know the efficiency of the units used. Efficiency is expressed by numbers from 0 to 1, and if we use a rope large diameter or too hard, then the efficiency of the blocks will be significantly lower than indicated by the manufacturer. This means that it is necessary to take this into account and adjust the efficiency of the blocks. To calculate the actual strength gain of a simple type of lifting mechanism, it is necessary to calculate the load on each branch of the rope and add them up. To calculate the gain in strength complex types it is necessary to multiply the real forces of the simple ones of which it consists.
You should also not forget about the friction of the rope, since its branches can twist among themselves, and the rollers under heavy loads can converge and pinch the rope. To prevent this from happening, the blocks should be spaced relative to each other, for example, you can use a circuit board between them. You should also purchase only static ropes that do not stretch, since dynamic ones give a serious loss in strength. To assemble the mechanism, either a separate or a cargo rope can be used, attached to the load independently of the lifting device.
The advantage of using a separate rope is that you can quickly assemble or prepare a lifting structure in advance. You can also use its entire length, which also makes it easier to pass knots. One of the disadvantages is that there is no possibility of automatic fixation of the lifted load. The advantages of a cargo rope are that automatic fixation of the lifted object is possible, and there is no need for a separate rope. The important thing about the disadvantages is that it is difficult to pass through the knots during operation, and you also have to spend a cargo rope on the mechanism itself.
Let's talk about the reverse motion, which is inevitable, since it can occur when the rope is caught, or at the moment of removing the load, or when stopping to rest. To prevent backlash from occurring, it is necessary to use blocks that allow the rope to pass in only one direction. At the same time, we organize the structure so that the blocking roller is attached first from the object being lifted. Thanks to this, we not only avoid backtracking, but also allow us to secure the load while unloading or simply rearranging the blocks.
If you are using a separate rope, the locking roller is attached last from the load being lifted, and the locking roller should be highly effective.
Now a little about attaching the lifting mechanism to the cargo rope. It’s rare that we have the right length of rope at hand to secure the moving part of the block. Here are several types of mechanism mounting. The first method is using grasping knots, which are knitted from cords with a diameter of 7-8 mm, in 3-5 turns. This method, as practice has shown, is the most effective, since a gripping knot made of 8 mm cord on a rope with a diameter of 11 mm begins to slide only under a load of 10-13 kN. At the same time, at first it does not deform the rope, but after some time, it melts the braid and sticks to it, beginning to play the role of a fuse.
Another way is to use a clamp general purpose. Time has shown that it can be used on icy and wet ropes. It begins to crawl only with a load of 6-7 kN and slightly injures the rope. Another method is to use a personal clamp, but it is not recommended, since it begins to creep with a force of 4 kN and at the same time tears the braid, or can even bite the rope. These are all industrial designs and their application, but we will try to create a homemade chain hoist.
Simple devices at a construction site
Any construction site cannot do without effective and simple devices to facilitate labor and increase the speed and quality of the constructed object. Today in this article I will talk about some of them, the simplest and most effective.
The easiest way to climb along guides, two ropes and fixed guides are enough for it.
This method is simple, but there are some tricks and difficulties; you need to pull at the same time and the guides must be securely fastened.
This is a very simple device, but it also makes the work easier, since the force is applied downwards, and this is always easier than simply pulling on the rope.
A lift in the form of a well crane perfectly reduces the time for lifting loads. The only negative is that. that lifting heavy loads using such a device is very difficult.
But lifting the load is much easier than without a counterweight.
Types of chain hoist fastenings.
With the help of chain hoists, you can make your work several times easier. It all depends on the method of securing it.
If you apply fastening number 1, then the force will be equal to the weight of the load being lifted;
2- two times less than in the first case;
3 – three times less;
4 – four times less than in the first case.
With the help of a chain hoist you can lift a load without making much effort.
The figure shows the types and methods of fastening simple lifts with pulley blocks. Lifting mechanisms are made rotating and simple non-rotating.
To facilitate lifting, an electric drive is installed and beam cranes are installed. Such mechanisms completely replace a truck crane.
This is, of course, only a small part of all the devices and you can’t tell about them all in one article. So, wait for the continuation.
When building any object, be it a house or something else that requires lifting heavy objects to a height, you need to go in two ways.
The first and easiest way is to hire people to lift heavy materials such as mortar, concrete or something similar.
Second, do lifting mechanism, capable of lifting heavy loads.
This device can replace at least three people and it is made from aluminum stairs and electric hoist.
Such a lift is capable of lifting three buckets of concrete and can be used alone. It’s not difficult to make a welded frame on bearings, and anyone with some knowledge of electric welding can easily attach an electric hoist to the top of a ladder.
If you attach the electric hoist as shown in the photo to a well-reinforced beam, then you will get very convenient device, which may well replace a faucet.
This simple device will speed up your work on grinding grooves during construction from round timber. Using the same principle, you can make other devices for carpentry work.
With the help of such a simple device, you can not only break walls with virtually no noise, but also press metal parts during installation and to join the floor boards together during installation.
A very convenient device, especially when making fences and other work related to a large number works with bent wire and fittings.
I also have experience working with almost the same device when making fences, and I liked that the speed of work increases significantly.
Making such a device for cleaning walls from paint will not take much time; for this you need welding machine, an old drill and by welding a metal plate to the drill, you can increase the speed of cleaning walls using a hammer drill.
Using a nozzle, which today can be bought in a store and construction vacuum cleaner, you can remove paint from the wall with virtually no dust.
How to make useful mechanisms and tools for construction with your own hands
It doesn’t matter whether you are building your dream home or renovating an old one country house, you cannot do without reliable tools and construction equipment. Almost any device today can be bought in a store, but purchases are not always pleasing with quality and even less often with prices. Our forum members know how to reduce the burden on the family budget and offer recipes for proven mechanisms and tools for construction, made with their own hands.
Truck...from the old four
Bring sand, crushed stone, boards, transport a concrete mixer and an old refrigerator... The need to deliver materials and tools during construction arises constantly. Member FORUMHOUSE g8o8r8 found a way to save on freight transportation: he converted his old four into a truck!
Budget auto tuning cost the craftsman 3.5 thousand rubles - this was the cost of materials: an iron square, corners, galvanized steel for the loading body. Loading body g8o8r8 made it high to protect it from rainwater: to close the gaps between it and the car body, metal canopies were welded around the perimeter.
The rear side of the body is lifted with a 12-volt electric winch. This is convenient when unloading bulk materials and loading boards, stones, furniture, etc. into the body by dragging.
g8o8r8 (FORUMHOUSE Member ):
At our metal collection point, they give five thousand rubles for any car. This inspired the idea of using my decommissioned four for economic needs: bring earth, peat, stones, sand to the dacha. And if you install a subframe, weld a blade, install chains, you’ll see that you’ll be able to throw snow in the winter.
Construction materials lift
Another useful homemade product that will make life at a construction site much easier is a building materials lift. For example, like the one from the FORUMHOUSE member Ali-bastre.Starting to pour monolithic walls, a forum member was tired of manually lifting heavy buckets of concrete and made a simple but ingenious design.
The basis of the lift was metal staircase. To securely fix the ladder on the wall, in a profiled steel pipe 15×15 Ali-bastre drilled the holes and reverse side put a washer on the pipe, securing it with a cotter pin. The trolley on which building materials are placed moves up and down on bearings No. 304 using an electric winch. It is located almost parallel, at a slight angle to the stairs, due to which the movement occurs smoothly.
Ali-bastr ( FORUMHOUSE member ):
It’s not for nothing that they say: laziness is the engine of progress. My lift lifts six buckets of concrete easily!
Planer for aerated concrete
Aerated concrete is one of the most popular modern materials for the construction of stone houses. The large format of the blocks and the installation technology, which can be easily mastered, allow even novice builders to erect buildings quickly.
But despite all its advantages, aerated concrete has a significant disadvantage - the blocks do not match in size and the need to adjust them to each other. You can use a shop tool for these purposes. But our forum members suggest making a plane for aerated concrete with your own hands. For this you will need: a board 5 cm thick, 3 wood files, universal glue, a door handle.
worodew (FORUMHOUSE Member):
Cut the files in half. We cut grooves in the board to half the thickness of the blade, lubricate the grooves with glue and insert the files. Screw the handle on and you're done.
Mobile foam cutting machine
And for those who insulate their house with polystyrene foam, another homemade product from the forum will come in handy - a machine for cutting polystyrene foam, which allows you to cut off pieces required size simply and quickly, without having to worry about using a hacksaw and a ruler.
User of our forum Oleg Lvovich used to make a mobile machine wooden slats 25×25 mm long 1.3 meters, nichrome wire with a cross section of 1 mm, a spring, two steel strips 20x4 mm, a 220/36V transformer and a wire of 15-20 meters.
On FORUMHOUSE, a forum member shares a diagram of a homemade machine:
Unlike stationary cutting machines, this device can be freely moved around scaffolding and cut foam directly on site. At the same time, the sheet can be expanded not only in length, but also in thickness - for this, two profiles are additionally attached to the EPS with nails. According to a forum member, the cost of a mobile machine is 800-1000 rubles, and even with intensive use it will faithfully serve for several construction seasons in a row.
Other examples of machines for cutting foam plastic, including stationary ones, are in this topic.
Comfortable grinder
Have you noticed that holding a small grinder by the top handle is convenient, but a large one is not? The big one always tries to escape from your hands when biting into metal. Having such a sad experience, some are generally afraid to use a large grinder. So that the grinder always remains in your hands, forum member chichic designed a homemade handle for the instrument with a natural grip.
chichic (FORUMHOUSE member):
A powerful grinder can break cutting disc, stuck in the metal, but she always remains in her hands. Proven by ten years of experience and cutting metal up to 14mm.
DIY cyclone vacuum cleaner
Dust and small debris during construction or major repairs are a real problem, which is difficult and ineffective to combat with a broom and rag. To make the cleaning process easier without spending money on expensive equipment, FORUMHOUSE member zalman3000 on a quick fix I assembled a cyclone for a vacuum cleaner from scrap materials.
Zalman3000 (FORUMHOUSE member):
You needed: a 20 liter plastic barrel, a 45 degree 40 mm angle, a 90 degree 32 mm angle, an oil filter from Moskvich (it fits tightly at the 32nd angle).
The simple design is attached to the vacuum cleaner, and waste is collected directly into a capacious plastic container.
