Gear box and rail transit car
A gear box and signal processing technology, applied in belt/chain/gear, transmission box, components with teeth, etc., can solve problems such as hidden safety hazards, inability to determine the effective working state of the gearbox, and avoid potential safety hazards. Effect
Pending Publication Date: 2017-06-09
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a gear box and a rail transit vehicle to solve the technical problem in the prior art that it is impossible to determine whether the gear box is in an effective working state and there is a great potential safety hazard
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[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention relates to the technical field of gear boxes, in particular to a gear box and a rail transit car. The gear box comprises a gear box body, a vibration sensor, a signal process system and a data display system; the vibration sensor is arranged on the gear box body and is used for detecting vibration signals of the gear box body; the signal process system is connected with the vibration sensor and is used for making the Fourier transform, cepstrum analysis and fine spectral analysis on the vibration signals, so that period elements of signals and micro-structure of variable frequency band are obtained; the signal display system is connected electrically with the signal process system and is used for displaying the analyzing results of the signal process system. Users can judge whether or not the gear box is in an effective working state from the period elements of the vibration signals and the micro-structure of the variable frequency, both displayed in the data display system, so as to diagnose faults of the gear box and maintain or replace the gear box in time, thereby avoiding the potential risk.
Description
technical field [0001] The invention relates to the technical field of gear boxes, in particular to a gear box and a rail transit vehicle. Background technique [0002] At present, the rail transit gearboxes used in China, such as high-speed rail, subway, urban rail vehicle gearboxes, etc., are one of the key components of rail transit vehicles. The gearbox is composed of gears, boxes, bearings and lubricating mechanisms. It is the power transmission device of rail transit vehicles and is responsible for transmitting the power of the motor to the train to enable it to run at high speed. As one of the core components of an EMU, the gearbox is one of the most important transmission links in the EMU transmission system, which is related to the driving safety of rail transit vehicles and the safety of passengers' lives and property. [0003] However, during operation, the working conditions of rail transit gearboxes are very harsh. Not only are they heavily loaded, but they are...
Claims
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IPC IPC(8): F16H57/01F16H57/02F16H63/40
CPCF16H57/01F16H57/02F16H63/40
Inventor 周振康宋信亮代丽平冯宏宇桂林齐宏管学来刘建昆沈茂
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD