Double-power input type transmission for caterpillar

Abstract

The invention relates to a double-power input type transmission for a caterpillar. The double-power input type transmission comprises a box body. The box body is provided with a power input mechanism, a double-power input mechanism, a middle transmission mechanism, a differential speed type drive mechanism, a left caterpillar band drive mechanism, a right caterpillar band drive mechanism and a power output mechanism. The power input mechanism is connected with the double-power input mechanism and the power output mechanism. The double-power input mechanism is connected with the differential speed type drive mechanism through the middle transmission mechanism. The differential speed type drive mechanism is connected with the left caterpillar band drive mechanism and the right caterpillar band drive mechanism. According to the double-power input type transmission, a mechanical and hydraulic parallel type double-power input device and a differential speed type steering mechanism capable of controlling gear rings of planetary gear mechanisms on the two sides of a drive wheel through external power to rotate forwards and reversely, the drive efficiency and control convenience of the caterpillar can be improved effectively, steering accuracy is improved, and the defects that an existing caterpillar is low in transmission efficiency and large in traveling side deflection resistance and cannot be controlled easily, and the sludge blocking problem is serious when the caterpillar conducts steering at the edge of a field are overcome.

Description

technical field [0001] The invention relates to a double power input type crawler vehicle transmission. Background technique [0002] Due to the large grounding area of ​​tracked vehicles, the grounding specific pressure of the crawler is small, and its value is close to the grounding specific pressure of humans. It is especially suitable for operations in southern paddy fields. At present, crawler-type operating vehicles in southern paddy fields mainly include crawler tractors and crawler harvesters. The transmission system of these tracked vehicles usually adopts two types. One is to use a purely mechanical power transmission system to transmit power, which has the advantages of simple structure and high efficiency. Farm machinery operators usually do not have the skills to drive cars or tractors, and it is difficult to control the coordination of clutches, accelerators, and gear shifts, which limits the development of tractors. The other is the continuously variable spee...

AI Technical Summary

Problems solved by technology

The crawler vehicles currently on the market usually use the steering rod to operate the jaw clutch and multi-disc brakes. The realization process is: when the crawler tractor turns to the left, the driver operates the left steering rod to make the left teeth The embedded clutch is separated and the output shaft on the left is braked. Since the transmission power on the left side of the crawler tractor is interrupted and braked to stop the rotation, at this time, driven by the power on the right side of the tractor, the implement turns to the left; Side steering, however, this kind of steering mechanism is realized by separating and combining jaw clutches and brakes, which has low steering precision and poor steering controllability

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