During the construction of this all-terrain vehicle, the author tried to create a car with minimal dimensions and high maneuverability, all parts and mechanisms should be easily accessible for repair, and the structures should be simple and reliable. Same all-terrain vehicle should be able to further modernize, so the units should not be too tight.
Materials and assemblies used to build this all-terrain vehicle:
1) steering tips from gas-53
2) Subaru Robin internal combustion engine with a power of 7 hp
3) CVT Buran-Taiga
4) gearbox from Oka
5) timing belt from vaz 2108
6) drives from oki
7) bridges from vaz 2107
8) splined from the universal joint
9) Steering gear UAZ 31514
10) steering bipod from gas-53
11) grip from UAZ
Consider in more detail the basic structural elements of the all-terrain vehicle.
A few photos of the construction of the all-terrain vehicle, where elements of the basic structures of the all-terrain vehicle are visible. as well as work on the details:
Half frames were created in a spatial design, and the fracture assembly was made on the basis of the axle of the front wheel and a simple metal sleeve, which is welded into the rear half frame. Steering tips from the gas-53 were also added.
The engine was located in front of the rear half frame, this reduced the weight, as well as the length of the front half frame. Also, thanks to a similar solution, the center of gravity of the all-terrain vehicle was shifted closer to the center.
The organization of the transmission is based on a chain transmission, which from the engine goes through a variator with a belt tensioner pulley timing belt VAZ 2108 power is transmitted to the input shaft of the gearbox.
The gearbox is installed longitudinally under the engine, and since the variator does not often require changing modes, it is located on the rear frame next to the fracture assembly. Traction gearboxes from KAMAZ were used. The differential was brewed.
All-terrain propeller shafts are made of oki drives and crosses of a classic vase. They transmit the moment to the rear driving axles of the VAZ 2107, bridges are perfectly fixed to the semi-frames by welding. Moreover, in the front propeller shaft, a spline from the UAZ was used, this was done to give strength.
The steering gearbox is also taken from the UAZ and connected through a modified traction from the Gazelle, which runs in the center of the front half-frame of the all-terrain vehicle, directly under the driver's seat. The design is connected with the frame fracture assembly through the welded steering bipod from gas-53.
A throttle valve with a cable is used to control the gas. Brakes are installed on the front axle, and it is also used as the main brake by the clutch unit from the UAZ car.
The all-terrain vehicle has wings from the MAZ semi-trailer, and a quick-detachable body is made of plywood.
The all-terrain vehicle turned out 280 centimeters in length, 160 centimeters wide and weighs approximately 330 kilograms.
Wheels with a diameter of 1050 mm and a width of 450 mm are installed on the machine. The distance between the wheels is 70 centimeters, and the all-terrain vehicle’s clearance is 40 centimeters.
This is how the all-terrain vehicle fracture assembly is made:
Photos of the installation of the variator and chain transmission:
Steering and brakes picture:
And here is the engine and gearbox on an all-terrain vehicle:
The frame of the all-terrain vehicle was welded independently by the author from a profile pipe, a 40 by 40 square 3 mm thick was taken as the basis.
The rear axle shaft was very successfully made: a plug with a flange from the classic drive shaft was welded to the empty internal grenade of the oki drive, the diameters were centered perfectly. The whole structure was assembled and mounted on an all-terrain vehicle with a small gap, so that later it could be conveniently mounted due to the small spline stroke.
Below are photos of the suspension of the all-terrain vehicle:
And here is a photo of the rear propeller shaft:
As well as a photograph of the front cardan, where the gap between the front frame and the slot is especially clearly visible.
For the stability of the machine afloat, it was possible to fix the semi-frames, for this, the axle of the axle of the front wheel and the metal sleeve were used. It is also possible to use homemade plates with a hole and fixation with a metal finger.
A press and an oiler were also installed. Moreover, the hub is installed together with standard fasteners and a bearing, which is quite convenient. It is possible to install the hubs from the UAZ to the all-terrain vehicle, since there are more horses, then the resource is higher, therefore the design will be more reliable, but the geometry of the all-terrain vehicle will have to be changed.
The driven shaft of the variator consists of two parts. One part is turned along the axis of the hub from the VAZ 2108, since this hub is used as a shaft housing, where the nut clamps the bearings. Moreover, a pulley is also attached to the same nut. On the other hand, the splined part of the output shaft from the gearbox from the motorcycle is welded on the ant.
On the shaft itself, a keyway is made under the variator pulley. the hub bearing is able to withstand loads of up to one and a half tons, which, considering the weight of the all-terrain vehicle, less than half a ton is very reliable.
The belt on the variator from the snowmobile taiga, the tension is adjusted looser, so that the gear changes are easier, with this scheme, the variator is triggered later and the engine manages to gain the necessary speed and moment.
Thanks to this solution, the all-terrain vehicle moves very smoothly, and the load at low speeds is reduced.
The entire gas control system of the all-terrain vehicle was removed from the motorcycle. The gas is located on a motorcycle under the right hand of the driver.
Photos of the off-road vehicle:
The author of an all-terrain vehicle with the nickname "Alexander Ms" from the city of Cherepovets, Vologda Oblast.