A snowmobile is a very useful vehicle forinhabitants of the northern latitudes of Russia. Not always road conditions allow you to come very close, for example, to a fishing place or to a remote village. Some acquire ready-made specimens, while others make a self-made snowmobile. From the chainsaw you can take an engine, the power of which will be enough to move the entire structure at high speed. In addition, you can seat a few people and put a couple of suitcases. How to make a self-made snowmobile with your own hands?
In fact, the brand of the engine is not critical forsuch a device as a snowmobile. Import is an assembly or domestic - it does not matter, the main thing is to pull well. The big difference between whether a homemade snowmobile from the chainsaw "Calm" or the Russian "Ural" is practically not made.
The most crucial element in thisthe apparatus is the engine. All other details, such as a chain or a tire, do not play a significant role in the design of such a vehicle, so the main thing is to keep track of and control the operation of the motor. If it is working, the snowmobile will always be on the move. If you decide to take the engine with imported chainsaws, you can not purchase a new device under warranty in the store. Quite suitable and second-hand option.
The only detail in the chainsaw, which must also be in working condition along with the engine, is a reducer. It is also useful for us in work.
We should take care of the schemes. On paper, you need to draw the layout of such important components and assemblies as:
The last detail can not be constructed from scratch, and take the old snowmobile "Buran". The same goes for skis - the tools from a children's snegakat are quite suitable.
First we make a frame.Here we need a few steel corners in size 50 x 36 millimeters and two steel plates 2 mm thick each. To stiffen the sheets, it is necessary to wrap the edges at an angle of 90about. In each of the plates, make a throughholes. In the front, it is necessary under the drive caterpillar shaft, and in the rear - under the axis of the guides of the tension gears. The last devices must be mounted at both ends of the spar.
Bottom to the frame, weld a few morebrackets, observing equal intervals between their location. In the grooves open from the underside, mount the axle of the support rollers. Total rollers should be 18. Place them on 5 axes (centered in staggered order). Rollers can be made from nylon and "shod" in rubber tires. You can go the easier way and take the already finished part from the potato sorting machine.
The axis of the rollers can be borrowed frompotato digger. Their ends need to be let go a little. This is done so that the axes can be pierced and threaded at 10 mm. Doing a homemade snowmobile from a chainsaw, do not forget about the remote bushings. They should be placed directly on the axes of the unit. It is best to take the sleeves from the duralumin pipe. Then fix the axles with the help of fixing bolts or the lock nut. The homemade snowmobile from the chainsaw "Friendship" is going along the same principle.
At the next stage, the spar needsweld 3 racks made of steel corner. The best option is the corners of 30 x 30 mm. They also need to be connected with steel crossbars. So the design will form a small portal. Between the front part and the middle on the right side, make a pad - weld the steel sheet to 2 mm. After this, place the chainsaw gearbox and the intermediate chain drive shaft.
In the space between the rear portal and the middle part it is possible to install a box. What for? It will serve as a support for the seat, which must be welded there at the final stage.
The front of the frame must be connected to the cross-arm of the front axle. As a beam, you can use an ordinary water pipe with a diameter of at least 30 mm.
To the ends of this pipe weld the bushes of the steeringskis. In the middle of the beam, attach the rack, which will serve as a motor subframe. All these details must also be made from the pipe, and at the junction points on the posts and the beam, you must additionally weld a headscarf from a 2 mm steel sheet. So the construction will become strong and, accordingly, reliable.
Those who did homemade mini-snowmobiles fromchainsaws, take caterpillars from the old "Buran". However, for it to function properly, it needs to be shortened (by 500 mm) and sewed with a transport tape. Gear wheels are made from a nylon sheet in 15 mm.
It will be tubular type with a diameter of 28 mm.It should be worn with a round flange with holes for the gears. At the ends of the drive shaft, press and weld the full-length trunnion tips. The latter must be pierced under the bearings.
It should be noted that the left tip shouldbe a little shorter than the right. On the elongation, make a keyway for the landing of the second stage propeller of the chain drive. This part is also called the sprocket wheel sprocket and is fixed with a 14 mm nut. Preliminary on this part, make a corresponding thread.
Dimensions of the tips of the tension shaft must be the same and fastened similarly to the drive devices.
It is best to make a homemade snowmobile fromchainsaws "Ural" or "Friendship". Although the imported "Calm" is also suitable (although it stands as 5 of our domestic apparatus). So, how to make a homemade snowmobile? The power unit must be secured to the sub-engine post, which should then be filled with a gas tank. This whole structure is welded to the transverse beam. As for the reducer, it will be deployed for 180about in the opposite direction and fixed together with the "speed reducer" on the platform of the two-stage chain transmission. The latter is the entire gearbox.
The first-stage driven star mustto have the greatest number of teeth. On the engines of the chainsaw "Ural" this value is exactly 38 pieces. The leading sprocket of the second stage has 10 teeth. The step of these devices is the same - 15.875 mm. By the way, the same step is set on the motorcycle "Minsk".
It will consist of support and steering skis andTo be connected by rigid drafts with a bobbin of a steering shaft. The steering wheel itself can be taken from any Soviet motorcycle. The main thing is that it should be 3-lever. At the right hand grip, install the hitch - a small lever that performs the same functions as the gas pedal on the car.
It does not matter whether you make a homemade snowmobile from the chainsaw "Calm" or "Ural", the manet should be, as it is an integral part in the design of this unit.
It is not necessary to install it, as inIn most cases, a self-made snowmobile from a chainsaw does not develop high speeds and stops itself. However, for safety it is possible to make brakes, however it will essentially complicate its design.
