Gear case running-in testing stand

Abstract

The invention discloses a gear case running-in testing stand. The gear case high speed running-in testing stand includes a device body part, a walking board assembly, a safety sliding door, an escalator, a guardrail, a foundation assembly, an electric control system, a hydraulic system assembly, a ventilation cooling apparatus, a temperature detection system, a noise detection system, a vibration detection system, a shooting monitoring system, a test report output and printing system, and a lighting apparatus. The testing stand includes the following steps: detecting the abnormality of the engaging sound of gears, the spinning sound of bearings, and other sound sent by the gear case in a running-in of the gear case through a running-in test; an automatic real-time monitoring system detecting whether the temperature at each bearing seat or of the lubricating oil inside the gear case is abnormal or excessively high when the gear case is in the running-in process; detecting the vibration of the case body of the gear case in the running-in, and summarizing the vibration in the running-in of the gear case by accumulating a great deal of experiment data; and after the running-in test, detecting the leakage of lubrication oil from each sealing part of the gear case.

Description

technical field [0001] The invention relates to the field of running-in test benches for gearboxes of traffic rail trains, in particular to a running-in test bench for gearboxes driven by a pinion coupling and equipped with an automatic centering device. Background technique [0002] On April 18, 2007, the national railway successfully implemented the second major speed increase. The Harmony CRH EMU appeared on the Chinese railway for the first time, and realized a high-speed operation with a maximum speed of 250 kilometers per hour on the existing line. This marks that my country has reached the world's advanced level in the speed increase of existing lines, and railway technology and equipment have entered the world's advanced ranks. The bogie is one of the most important components in the vehicle system of the EMU, which directly affects the dynamic performance, running quality and driving safety of the vehicle. After the EMU has run for 900,000 kilometers or 1.2 million...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many ways of gearbox running-in test, some of which are directly assembled on the bogie for running-in, this method is extremely complicated to disassemble and install when there is a problem with the gearbox system; in terms of axle support devices, some use double tops The device tightens the axle for running-in, and the double-top method is only suitable for low-speed axles, which cannot withstand the test speed of high-speed trains such as high-speed trains; there are also sleeves that are used for shrink-fit interference connection and clamping axles for running-in. This method is more likely to damage the axle journal; moreover, most of the gearbox running-in test benches have a relatively narrow scope of application, and can only perform high-speed running-in tests on specific types of motor vehicle gearboxes, which has poor applicability; in terms of lubrication , Grease lubrication is often used. With the increase of the operating speed of the lubricating parts, the greater the shear stress, the greater the damage to the grease fiber skeleton formed by the thickener, and the greater the service life of the grease. shorter

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