Build Daily

August 12, 2017 18:06

Construct a manual hoist with his own hands

Construct a manual hoist with his own hands

Manual hoist with his own hands constructed easily.

may seem to make it very difficult with their own hands, but in fact the design is based on simple laws of physics and mechanics.

winches today found everywhere: in construction, Farmland, motorists are willing to take with a winch to get out of the off-road track.

winches have their advantages:

  • compact, small footprint - fits in the trunk;
  • ease of use - no training is needed to use;
  • mobility - can be rotated depending on the task at hand, it creates a force in the horizontal and vertical projections;
  • versatility - its task is only to pull and lift the load.And where and how - whether large difference?We just need to make sure that it creates the necessary tractive force;
  • easy maintenance: do not require complex and regular maintenance.

Read our stuff, see the instructions on the practical assembly (including video), and you will understand what to do with their hands simply winch.

But first - a detailed digression: variety, prin

ciple of operation, the device itself and the actual instruction steps.

Contents:

  • kinds of manual winches
    • Lever
    • Drum
    • assembly and traction
  • Hand winch: manual
  • Cooking body

kinds of manual winches

winch is used to move cargowith his hands at a distance horizontally and vertically to a height, with or without a focus.There are three varieties of hand winches.

Lever

Lever winch cable has ratchet or ratchet lever and an important feature - it can work in a suspended state, needs no fixing to a solid foundation.

swinging arm movement is driven ratchet.This mechanical winch drum is built, which is not unwound due clamps - cams.

The only drawback - the short cable (barely more than 6 meters).What is more important - her effort in traction: this indicator counts from 750 kg up to 4 tons of force.Permissible height of lifting - 4 meters.

Hand winch

Drum

In this version of the device include support, arm, gearbox, drum.The drum may be toothed or worm.Toothed preferable to use as a drum wears out very slowly.

Sometimes referred to as a hoist rope for the reason that it has a drum with a long rope.It works like this: turn the crank, rotate the drum gear is reported, the drum in turn creates traction.

This winch must always be securely fixed.Also, the winch drum is an important locking mechanism - Brake which is automatically released in the event of a sudden drop shipping.

winch drum according to the tractive effort of 250 kg to 5 tonnes, with a cable length of easily reaching 30-40 meters, with a thickness up to 15 mm.

cable thickness immediately expands opportunities - car output from the cell, raised a heavy concrete block on the pitch and so on.

Hand winch

assembly and traction

This lever type hoist, but without the drum.The housing has a clamp-jaws that create the desired force.

cams are arranged in parallel, because the pressure force on the cable is distributed equally over all vectors, which means that the cable will last longer as a result.

With the lever can lock cams.The winch has a thrust arm which by means of a shear pin to protect the whole mechanism from overload.

This winch is used most often as more technically perfect and is thought to be used in absolutely all spheres of economic and construction activity.

We just need to periodically lubricate the mechanism that all its components worked perfectly.

Hand winch

Hand winch: manual

Before we proceed to the assembly manual winches made of metal with their hands by welding, pay attention to the old "antiquated" method that can help out when there is no mechanism, and pull toeg cars out of the mud should be:

  • you need scrap piece of pipe, wire;
  • -Ground scrap deep in the earth - it will be the axis of rotation;
  • On the axis we put on a segment of the pipe, which will lever.Of course, with scrap pipe should form an angle of 90 degrees to the axis of improvised could be rotated;
  • Fasten cable carabiner to scrap, and the other end - the vehicle fasteners;
  • With the help of a lever (pipe), we begin to wind rope for scrap.This is an important point, which will facilitate the work: the longer the lever, the less effort you spend on cable cheat.Let the trumpet - our lever length is under 1 meter can be a little shorter.

This winch, though improvised, is exactly the same principle of operation of any other.

Now for metal assembly by welding and other parts.Our future winch will consist of: gears, shaft for winding the cable, plugs, handles and body.

Pay attention to the drawings - they are the recommended dimensions of all components.

We now consider a little more accessories:

  1. gear - worm reported torque shaft, which is wound rope.It should be thick enough to pick up the item with strong teeth - a margin of safety will be considerably larger;
  2. shaft rope winding - can personally make simple parts: Take desirable cast cylinder of metal (piece of old PTO shaft, the sleeve of the truck) and the one side thereto to weld "ear" - rounded metal sheet which diameter suited to the innergear ring.In the future, it is desirable to drill a shaft through hole - it is possible to pass a cable and then fix it on the outside;
  3. sleeve - shaft needed to slip during rotation.If you constantly use a winch, it is better to put the rolling bearing, which, like the sleeve can be easily changed;
  4. body - it is necessary to take into account the very important thing: all the fixing holes need to do based on the total absence of gaps and distances between the gear, shaft, grip and bearing / bushing.

mechanism should run smoothly - do not be cranky, but firmly planted to the items abraded each other.

And now to the assembly itself winch.

drawing winch

Cooking body

Take a steel channel or a sheet metal thickness of 4 mm.The body will consist of short and long bars Angle bars, planted on the bolt connection with the two plates of the housing.

Trace:

  • Take two pieces Angle bars - a length of 40 centimeters, the other - 30 cm one that is longer is the right part of our winches, where there will be gear and rotating handle;.
  • Angle bars marked with the mark on the same level for through drilling - in the resulting hole we put at the end of the shaft;
  • Drill Angle bars in each well at an equal level of 4 holes for bolting to the parallel plates of the housing;
  • Take a sheet of metal, 4 mm thick and cut out 2 pieces: they resemble a usual rectangle, which is in the lower right corner has a projection in the form of a triangle.In one such detail drill a series of holes that need to mount the winch is stationary.Also in these two parts we drill through the hole at the same level - in it we prodenem shaft worm gear;
  • fits over the shaft worm gear bearing two (two plugs);
  • We put metal plates c triangular projection on the worm gear shaft and fasten them with bolts, lock washers and nuts;
  • on winding shaft gear planting.Once put on the metal sleeve;
  • Insert the shaft into a long channel;
  • We put on a short channel on the brass bushing and fasten and lock washers, nuts and bolts.

Winch is ready.Fasten it to its destination - in the garage, on the construction site.

It is also possible - to put a winch on a pair of metal hoops that can be used as grips around the tree: unclenched hoops wrapped around their tree, quickly tightened with bolts and nuts - a winch mounted on a tree.

End cable is attached to the towing hook of the car and you can pull it out of the mud in the field.

Note the video - it summed up the whole process of assembling simple manual winch.

Video:

Hand winch - a rather artless design, manufacture their own hands which is based on calculations of its mounts rotating parts.

Before assembling their own hands, to mark the point of future fixtures, attaching the available details in relation to the workpiece: can understand immediately - which mark where to cut too much, can and does replace the plug / gear.

Collect the specified sequence, and as a result get a fully working, a simple device, but very effective mechanism.