Operating gearbox

Abstract

The invention discloses an operating gearbox of a large railway maintenance machine, and particularly relates to an operating gearbox. The operating gearbox comprises a hydraulic motor, a box body, a driving gear shaft, a driven gear, an intermediate gear shaft, an axle gear, a wheel set, a shifting mechanism and a locking mechanism, wherein the box body is provided with a planetary reduction mechanism; the planetary reduction mechanism is connected with the driving gear shaft; the input end of the planetary reduction mechanism is transmitted by a bevel gear pair; the hydraulic motor is vertically connected with the planetary reduction mechanism by the bevel gear pair; the box body is also provided with a shifting display mechanism which comprises a mounting plate, a sleeve, a display shaft, a spring and a platen. The operating gearbox has the advantages of big speed ratio, high transmission precision, stable shifting process, safety and convenience in operation, reasonable structure and easiness in manufacture.

Description

technical field [0001] The invention relates to an operation gear box, in particular to a track-type hydraulic drive high-speed ratio and high-precision operation gear box. Background technique [0002] The track-type hydraulic drive operation gearbox, through the gear transmission pair, the power transmitted by the power source is converted to the wheels after a certain speed ratio, and drives the whole vehicle to work. The operation gearbox can not only meet the requirements of the low-speed operation of the vehicle, but also adapt to The whole vehicle runs at high speed, and the gear box realizes low-speed operation and high-speed running gear shift and lock through the gear shift locking mechanism. Existing rail-type hydraulically driven operation gearboxes mainly have a form, such as the 08-32 type tamping vehicle operation axle gearbox introduced from Plasser﹠Theurer Company of Austria. The shift locking mechanism is composed of shift locking mechanism, which moves th...

AI Technical Summary

Problems solved by technology

Existing rail-type hydraulically driven operation gearboxes mainly have a form, such as the 08-32 type tamping vehicle operation axle gearbox introduced from Plasser﹠Theurer Company of Austria. The shift locking mechanism is composed of shift locking mechanism, which moves the driving gear to disengage through the shift fork, and locks the gear position with a spring and steel ball assembly. The shifting is inconvenient and the locking is not reliable. In order to disengage the gear normally, the gear The meshing side clearance of the auxiliary design is too large. In addition, the installation position of the gear pair in the box design is fixed, and the center distance cannot be adjusted. Not suitable for high torque transmission requirements

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