Method and device for suspension of axle gearbox and work vehicle using the device

Abstract

The invention provides a suspension method for an axle gearbox, a suspension device for an axle gearbox and a working vehicle. The method includes: installing a support at the lower end of the main beam of the bogie frame; connecting the axle gearbox with a torsion arm. There are two hinge points, and a travel switch mounting seat and a travel switch are assembled on the telescopic mechanism. The axle gearbox suspension device includes a torsion arm, and the work vehicle includes the work vehicle body. The bogie frame of the work vehicle is connected to the axle gearbox suspension device. Based on different operating conditions, different torsion arm hinged support points are used to ensure the operation Under working conditions, a rigid suspension connection is realized between the gearbox and the bogie frame to eliminate the instantaneous impact during driving; at the same time, when running at high speed, an elastic suspension connection is realized between the gearbox and the bogie frame to prevent damage to the gear during high-speed operation The drive shock generated by the gearbox is too large and the suspension of the gearbox is damaged or falls off.

Description

technical field [0001] The invention relates to a suspension method and device for an axle gearbox of a rail milling and grinding vehicle. Background technique [0002] Rail is the main component of rail transportation. Because the rail is in direct contact with the train wheels, the quality of the rail directly affects the safety and stability of the train. After the track was put into operation, the rail has been in a harsh environment for a long time. Under the joint action of train power, load, natural environment and the quality of the rail itself, rail damage and disease often occur, such as cracks and wear. These wears and diseases further deteriorate the working condition of the wheel-rail contact surface, thereby reducing the life of the rail, increasing the maintenance workload and maintenance cost, and seriously affecting the driving safety. General public works equipment cannot control rail surface defects and rail head damage, and the method of only replacing r...

AI Technical Summary

Problems solved by technology

However, the axle gearbox suspension methods in the prior art all adopt the elastic connection method used in high-speed operating conditions (to prevent excessive driving impact on the gearbox from high-speed operation, which will cause damage or fall off of the gearbox suspension, resulting in driving safety accidents), In the process of operation, the gearbox with elastic suspension is not conducive to the maintenance of railway equipment such as milling and grinding maintenance. For example, during milling and grinding operations, the use of elastic connections will transmit the instantaneous impact force in the direction of travel to the milling and grinding discs. , resulting in damage to the milling blade and grinding disc

[0004] The Japanese application with publication number JP11129898 discloses a gear box suspension device for a locomotive, wherein the gear box is mounted on the vehicle frame through a gear suspension device. It can avoid the transmission of the vibration of the frame to the gearbox, and the gear suspension can shorten the distance between the frame and the gear shaft when the total displacement of the gear shaft is reduced, but this suspension can only provide elastic connection

Gearbox suspension not suitable for road maintenance vehicles

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