Views: 67 Author: Site Editor Publish Time: 2022-08-20 Origin: Site
The farm tractor is used to haul and drive working machines to complete various mobile operations, and can also be used as power for stationary operations. A tractor is composed of systems or devices such as engine, transmission, walking, steering, hydraulic suspension, power output, electrical instrumentation, driving control and traction.
What is the development history of farm tractor?
What are the characteristics of a modern farm tractor?
What are the connection methods of agricultural tractors and agricultural implements?
A farm tractor is used to haul agricultural machinery or trailers for farming, harvesting, or other similar tasks. In the nineteenth and early twentieth centuries, the earliest mechanized agricultural equipment was the steam tractor. They use steam engines that are not very safe, easy to explode and confuse drivers, and use crawler drives. These farm tractors were phased out in the 1920s due to the introduction of the internal combustion engine.
Modern farm tractors usually have four foot pedals for the driver to operate. The left foot pedal is used to operate the clutch, and the driver depresses this pedal to disengage the transmission for shifting or stopping the tractor. The two pedal brakes on the right are used to brake the left and right rear wheels respectively. This method is used in rear-wheel drive vehicles to increase the steering angle of the vehicle. This is often encountered during sharp turns; similarly, the farm tractor is also used when the vehicle is often slipping when driving in mud or soft soil. The driver depresses both pedals at the same time to stop the tractor. When the four-wheel drive tractor is traveling at a certain speed, the tractor is stopped by engaging the four-wheel locking differential.
There are three types of connection between agricultural tractors and agricultural implements: traction, suspension and semi-suspension. Most modern tractors are mounted and semi-mounted. According to different operation requirements, farm implements can be hung on the back, front, side or between axles of the tractor, thus forming different suspension methods such as rear suspension, front suspension, side suspension and inter-axle suspension, the most used is the rear suspension device. The hydraulic suspension device consists of a hydraulic system and a suspension mechanism. The hydraulic suspension device is not only used to raise and lower agricultural implements, but also to adjust the tillage depth, and to transfer the weight of part of the agricultural implements to the driving wheels to improve the tractor's adhesion ability and improve the tractor's traction performance.
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