Interesting side-turn six-wheeled all-terrain vehicle The author conceived with the nickname PZT. The all-terrain vehicle must be able to swim, have small dimensions for transportation on the bus. However, quite powerful to pull the car out of the mud. Also, its function includes cleaning snow.
Parts, materials and units used in construction:
1) The engine is taken from Dev Tiko (power 52, weight 120 kg, length 68 cm)
2) SHRUS 17z of Java.
3) Transfer box from the Niva.
4) Stars of 27 \ 41 tooth.
5) Chains 12.7
6) Washers from the VAZ 2107
7) ATV wheels 27-12.5 r12
8) the hub units of the vaz 2108
The clearance from the frame to the ground is about 40 cm.
The dimensions of the all-terrain vehicle are strictly defineddue to the need to fit on the bus.
width: 140 cm
length: 240 cm
height: 105 cm to the side.
Regarding the weight of the all-terrain vehicle:
An engine with a radiator weighs about 120 kilograms.
The battery, fuel tank, and storage compartment will have masses of 80-100 kilograms.
You can also take into account the weight of two passengers. Although the car can accommodate four people, it will not be comfortable.
The weight of the whole machine is 580 kilograms.
Consider the construction stages in more detail.
To strengthen the all-terrain vehicle, cones were machined, as well as washers from vaz 2107 for each nut.
Initial implementation of the idea:
but we don’t have a frame. mounting frame from profile 20x20. And so it is planned to carry a sealed body of profiles and sheet iron.
The author decided to make a mounting frame from a 20x20 profile, and then make a load-carrying sealed body from sheet metal.
The bottom of the all-terrain vehicle was decided to be made not flat, with a clearance of about 48 centimeters.
After creating the frame, the author proceeded to install the basic structural elements. An engine with a radiator, a fuel tank, a silencer was installed. Gearbox and brakes in test mode, their fastening will occur after the main tests. It is possible to use distribution without a differential; for such a solution, the author has aviation air brakes.
In this version, the sprockets were mounted on the console, and to reduce the load on the transmission, the author made an additional exit from the engine.
After the main work on the body and power units, it was decided to simulate the future design of the all-terrain vehicle. The main luggage compartments were marked.
In order to save space, many details are made folding, that's how the top of the all-terrain vehicle is made. For reliability, a kind of safety arch was organized, which can be seen in the photographs of the finished all-terrain vehicle.
Photo of the first tests:
After testing the car, the following things became clear: the engine is very powerful for such a mass of all-terrain vehicle, the steering column and engine mounts need to be modernized, the rotation is carried out differentially, by adding gas.
Of the minuses, it can be noted that if you are in a rut, then turning from a place is not possible, that is, you have to choose a trajectory. In normal situations, there is no such problem. With strong acceleration (2-3 gears) it is rather inconvenient to maintain a comfortable position, especially when cornering. Gear shifting also requires tangible efforts from the driver.
The author thought about altering the gas supply so that it could be done by hand.
In general, the all-terrain vehicle has experienced serious stress and needs to be repaired. In particular, the author decided to replace the temporary framework with the main one. Eliminate deformation of the rear wheel hubs. Solve the problem of skewing stars.
Here the chain jump is shown, due to the deformation of the stars:
The frame itself will weigh 80 kilograms, the bottom sheet is two millimeters, the top 1 millimeter.
Then the author proceeded to create the supporting frame of the all-terrain vehicle:
The author decided to move the engine back and deploy along the axis of the all-terrain vehicle. The frame was narrowed to 68 centimeters, due to which, the space from the wheels to the body was increased. A similar solution was necessary in order to be able to install overhead tracks on an all-terrain vehicle in the future.
The gear ratio for this all-terrain vehicle is about five.
Hub unit upgrade:
Complete bearing sets:
Circuit Comparison:
There was a small upgrade of the brakes for turning:
Transmission Nodes:
Transmission:
Ventilation:
The controls and driver's seat have also been improved to avoid drawbacks when cornering.
A snow bucket was mounted. the author used a pipe on 89, galvanized as a canvas. The weight of the bucket is about 30 kilograms, the main pressure is due to the weight of the snow.
For movement on water, it was decided to attach an outboard boat motor to the all-terrain vehicle, it will allow to reach speeds of up to 4 km per hour.
Photos of water tests:
After the tests, the following conclusions were made:
The strength of the current is quite a tangible thing for such a machine, it is too difficult for the driver to keep the course on his own.
It follows that in a strong current the car is like a log, a hook can be used for maneuvering.
Due to the peculiarities of the casing, it is also not possible to cross the current on the motor + wheels, the water hits the side and turns the casing in the direction of the current.
Because of this, it sometimes presses against obstacles, and pulling the all-terrain vehicle back is problematic.
For what the sizes were respected:
Test Video:
During operation, the all-terrain vehicle underwent coups:
Unfortunately it has such problems due to the frame too narrow. One thing is good, it lays on its side smoothly, there are no consequences for passengers, they easily go overboard the all-terrain vehicle.
Initially, a winch was proposed for lifting on wheels, however, an easier way was found out experimentally.
Only two people can easily lift the all-terrain vehicle and put it in its original position.
this case concerns the photo above, but as you can see on it: the all-terrain vehicle did not fall completely on its side.
In the future, it is possible to change the center of gravity of the all-terrain vehicle by moving the motor, gearbox and battery lower by 10-12 cm, it is even possible to reduce the clearance height. Such measures can seriously affect the lateral stability of the all-terrain vehicle.
Photos of the off-road vehicle:
