A multi-purpose farm work machine

Abstract

A multifunctional field operation machine comprises a front frame, a back frame, a front axle, a rear axle, a front wheel and a rear wheel. An engine, a gearbox, a transfer case and a full hydraulic steering device are arranged on the front frame. The transfer case is connected with the front axle through a front drive shaft and connected with the rear axle through a rear drive shaft respectively. Speed ratios of the front axle and the rear axle are identical, and specifications and models of the front wheel and the rear wheel are identical. The full hydraulic steering device comprises an overflow pump, an oil cup, a mono-stable valve, a steering gear and a steering cylinder. The rear frame is provided with a goods carriage and an unloading control device which are connected. According to the multifunctional field operation machine, a housing of the gearbox cannot crack easily, oil leakage cannot occur easily, and the field operation machine is comfortable to drive, good in adaptability, long in service life and low in manufacturing and maintenance cost.

Description

technical field [0001] The invention relates to a multipurpose farmland operation machine. Background technique [0002] Existing farmland operating machines are mainly disc tractors. After long-term use, their defects are: (1) The front axle is integrated with the gearbox, and the casing of the gearbox is prone to cracking and oil leakage. Poor; (2) It adopts two-wheel drive, and the horsepower is small, so it cannot be well adapted to working conditions such as muddy roads and steep slopes, especially in remote rural areas with poor passability, which makes the loading performance relatively limited; (3) Front The specifications and models of the wheel and the rear wheel are different, the speed ratio is different, there is tire wear, and the service life is short; (4) The mechanical steering device is used, the structure is relatively complicated, the operation is cumbersome, and the manufacturing and maintenance costs are high. Contents of the invention [0003] The t...

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Problems solved by technology

[0002] Existing farmland operating machines are mainly disc tractors. After long-term use, their defects are: (1) The front axle is integrated with the gearbox, and the casing of the gearbox is prone to cracking and oil leakage. Poor; (2) It adopts two-wheel drive, and the horsepower is small, so it cannot be well adapted to working conditions such as muddy roads and steep slopes, especially in remote rural areas with poor passability, which makes the loading performance relatively limited; (3) Front The specifications and models of the wheels and the rear wheels are different, the speed ratio is different, there is tire wear phenomenon, and the service life is short; (4) The mechanical steering device is adopted, the structure is relatively complicated, the operation is cumbersome, and the manufacturing and maintenance costs are high

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