The working principle and function of the tractor

1. Working principle of tractor

A drawbar support is located on each side of the steel plate under the seat cover, connected to the cover by a pin. The drawbar base can rotate back and forth relative to the cover about the pin. The underside of the drawbar base is bolted to the trailer being towed. A locking mechanism consisting of a horseshoe, a yoke, a hook tongue, an adjustment plate, a crossbar, a pull rod, and a spring is located below the cover. The horseshoe is fixed to the cover, and the hook tongue, pull rod, and crossbar are connected by a pin. The yoke is also connected by a pin, and the pull rod is connected to the rib plate under the cover by a spring. The characteristic feature of the saddle-shaped cover is that the two tails at the rear are large arcs, and the middle has a butterfly-shaped concave surface, dividing the entire plane into five similarly sized sections.

The Traction Control System (TCS), also known as ASR or TRC, ensures optimal traction in all driving conditions. The traction control system is a computer that monitors the speeds of the four wheels and the steering angle. If a significant speed difference between the drive and non-drive wheels is detected during acceleration, the computer immediately determines that the driving force is excessive and issues a command to reduce engine fuel supply, lowering the driving force and thus reducing drive wheel slip. The computer uses the steering wheel angle sensor to determine the driver's steering intention and then uses the left and right wheel speed sensors to detect the speed difference, thereby determining whether the vehicle's steering direction matches the driver's intended direction. If understeer (or oversteer) is detected, the computer immediately determines that the driving force is excessive and issues a command to reduce the driving force to achieve the driver's intended direction.

2. The role of tractor

1. Anti-skid: Prevents the drive wheels from spinning when driving on slippery surfaces such as snow, allowing the vehicle to start and accelerate smoothly. Especially on snowy or muddy roads, the traction control system ensures smooth acceleration and prevents the vehicle from sliding sideways or drifting due to drive wheel slippage.

2. Flexibility: When towing a vehicle, it can make the vehicle more maneuverable and flexible.

3. Reliable operation: ensure reliable connection between the towing vehicle and the trailer, and convenient and quick disconnection.

4. Stability: The traction force can be transmitted to the trailer smoothly, which has a certain buffering effect on the impact load.