Planetary gear differential steering device for tracked vehicles

Abstract

Provided is a planetary gear differential steering device for a tracked vehicle. A steering shaft is installed on a box and sleeved with a differential steering left gear and a reversing idler. The lower portion of the reversing idler is sleeved with a sleeve. A hydraulic motor is installed between the steering shaft and a sun gear type supporting shaft. One end of the sun gear type supporting shaft is sleeved with a left track drive shaft, the other end of the sun gear type supporting shaft is sleeved with a right track drive shaft, and power is output to drive a left track driving mechanism and a right track driving mechanism to travel. Outer teeth are machined on the outer end face of the sun gear type supporting shaft. The middle of the sun gear type supporting shaft is sleeved with a main speed-reducing driven gear. A right planetary gear mechanism is installed on one side of the main speed-reducing driven gear. A left planetary gear mechanism is installed on the other side of the main speed-reducing driven gear. A motor gear is installed on a motor drive shaft of the hydraulic motor and is meshed with the reversing idler. A differential steering mechanism is directly driven through the hydraulic motor, and the problems that an existing tracked vehicle generates lateral deviation resistance during driving and mud blocks the vehicle when the vehicle steers on the field edge are effectively solved.

Description

technical field [0001] The invention relates to the technical field of crawler vehicle drive, in particular to a planetary gear differential steering device for a crawler vehicle. Background technique [0002] Because the working principle of the tracked vehicle driving system is similar to that of the two-wheeled agricultural machinery, the transmission usually integrates one or more functions such as steering, differential speed, main deceleration, braking, etc.; but at least the steering function is integrated, and other The steering function usually uses the steering rod to operate the jaw clutch and multi-disc brake. The specific realization process is: when the crawler tractor turns to the left, the driver operates the left steering rod to separate the left jaw clutch and The output shaft on the left side is braked. Since the drive power on the left side of the crawler tractor is interrupted and the brake stops rotating, at this time, driven by the power on the right s...

AI Technical Summary

Problems solved by technology

[0002] Because the working principle of the tracked vehicle driving system is similar to that of the two-wheeled agricultural machinery, the transmission usually integrates one or more functions such as steering, differential speed, main deceleration, braking, etc.; but at least the steering function is integrated, and other The steering function usually uses the steering rod to operate the jaw clutch and multi-disc brake. The specific realization process is: when the crawler tractor turns to the left, the driver operates the left steering rod to separate the left jaw clutch and The output shaft on the left side is braked. Since the drive power on the left side of the crawler tractor is interrupted and the brake stops rotating, at this time, driven by the power on the right side of the tractor, the implement turns to the left; similarly, it can turn to the right, but this 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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