Steering linkage device of planet steering mechanism

Abstract

The invention relates to a steering linkage device of a planet steering mechanism. The steering linkage device comprises a central transmission bevel gear wheel (1), a planet steering mechanism big gear wheel (2), a left planet steering mechanism (10) and a right planet steering mechanism (36) which are symmetrically arranged left and right, a left planet steering mechanism brake (18), a right planet steering mechanism brake (44), a left half axle brake (28) and a right half axle brake (54). The steering linkage device disclosed by the invention is characterized in that between the left planet steering mechanism brake (18) and the left half axle brake (28) and between the right planet steering mechanism brake (44) and the right half axle brake (54), the left half axle brake (28) and the right half axle brake (54) can be used for braking after the left planet steering mechanism brake (18) and the right planet steering mechanism brake (44) are separated completely, and the left planet steering mechanism brake (18) and the right planet steering mechanism brake (44) can be jointed after the left half axle brake (28) and the right half axle brake (54) are released completely. The steering linkage device is easy to operate, the brakes are not damaged easily, the work efficiency is high, and the safety is good.

Description

technical field [0001] The invention relates to a planetary steering mechanism in a crawler traveling machine, in particular to a planetary steering mechanism steering linkage device of a crawler traveling machine such as a crawler tractor. Background technique [0002] Existing crawler tractors, bulldozers and other crawler walking machines that realize steering with planetary steering mechanisms are all provided with left and right planetary steering mechanism brake operating levers and left and right half-axis brake pedals in front of the driver. To move the left or right planetary steering mechanism brake operating lever by hand, and to step on the left or right half-axis brake pedal, when braking or deceleration is required during driving, the driver must step on the left and right half-axis brake pedals simultaneously. There are following disadvantages like this: 1, compare with wheeled tractor, because the operating habit is quite different, the driver needs special t...

AI Technical Summary

Problems solved by technology

There are following disadvantages like this: 1, compare with wheeled tractor, because the operating habit is quite different, the driver needs special training; Efficiency and safety will also be reduced; 3. The driver is required to have higher driving skills. When turning, the driver is required to first separate the planetary steering mechanism brake to cut off the power and then implement the half-axis brake brake, that is, move the left or The right planetary steering mechanism brake operating lever, the left or right half-axis brake pedal can only be stepped on when the planetary steering mechanism brake is completely disengaged, or the driver is required to release the left or right half-axis brake pedal first when driving in a straight line. After the brake is completely released, the brake lever of the left or right planetary steering mechanism can be engaged to engage the power. However, it is actually difficult to achieve precise and in-place coordination of hands and feet. Therefore, braking without cutting off the power will lead to increased wear and heat of the half-axis brakes , the service life is reduced; 4. In order to reduce the steering force of the driver, the brake levers of the left and right planetary steering mechanisms are often designed to be longer. Move the operation lever to rotate a larger stroke, so the corresponding design of the cab is relatively large and heavy; 5. When braking, the driver must step on the left and right half-axis brake pedals at the same time, and the operation is laborious.

The disadvantage of the above technical solution is that it requires high control skills. When the tractor needs to turn to a certain side, the correct operation method should be: first pull the steering brake belt control lever on the side, if you need to make a sharp turn, you can use the control lever After pulling it to the bottom, step on the pedal of the brake band. If the pedal of the brake band is stepped on first, since the power of the half shaft is not cut off and the speed is high, the wear of the brake band will inevitably increase, and at the same time the brake drum will produce Rotation will also accelerate the wear of the brake band

Images