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Closed driving axle testing device capable of automatically simulating vehicle steering

A technology for simulating vehicles and testing devices, which is applied in the field of devices for testing the performance of vehicle drive axles. It can solve problems such as complex composition, high price, and complex technology, and achieve improved reliability, convenient fatigue life, and simple energy recovery methods. Effect

Inactive Publication Date: 2015-04-22
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the most significant advantage of the mechanical closed test bench is energy saving, which can reduce the operating cost, but compared with the open test bench, it increases the transmission device and the servo loading device, the composition is relatively complicated, and the price is relatively expensive; The mechanical structure of the electric energy closed test bench is simple and compact, the power loss is small, the efficiency is high, and the heat generation is reduced. However, the power recovery method is to convert the mechanical energy output by the drive axle into electrical energy, and then recover it through the power grid. The structure and technology of the power system are complicated. high cost

Method used

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  • Closed driving axle testing device capable of automatically simulating vehicle steering
  • Closed driving axle testing device capable of automatically simulating vehicle steering
  • Closed driving axle testing device capable of automatically simulating vehicle steering

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no. 1 Embodiment

[0025] see figure 1 As shown, the present invention a kind of closed drive axle testing device that can automatically simulate vehicle steering, mainly comprises driving motor 1 ( figure 1 The middle is the speed regulating motor), the power synthesis box 2, the input sensor 3, the drive axle under test 4, the right output sensor 5, the steering motor 6 ( figure 1 The middle is the speed regulating motor), the right transmission box 7, the fuel tank 8, the oil filter 9, the loading hydraulic pump 10, the test drive axle 11, the left transmission box 12, the left output sensor 13, the anti-cavitation check valve 14 , loading valve 15 ( figure 1 Among them is the electromagnetic proportional relief valve), safety valve 16 and hydraulic motor 17.

[0026] The power synthesis box 2 has two input shaft ends and an output shaft end, the first input shaft end is connected with the driving motor 1, the second input shaft end is connected with the hydraulic motor 17, and the output s...

no. 2 Embodiment

[0048] see figure 2 As shown, compared with the first embodiment, the hydraulic circuit of the second embodiment adopts a closed system, the power synthesis box 2 is a chain transmission, the left transmission box 12 and the right transmission box 7 are chain transmissions, and the hydraulic motor 17 is a variable motor, the loading valve 15 is an electromagnetic reversing valve.

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Abstract

The invention discloses a closed driving axle testing device capable of automatically simulating vehicle steering. A power synthesis case is connected with a driving motor, a hydraulic motor and an input shaft of a tested driving axle, a left output shaft of the tested driving axle is connected with the input shaft end of a left transmission case, the output shaft end of the left transmission case is connected with a left input shaft of a slave driving axle, a right output shaft of the tested driving axle is connected with the first input shaft end of a right transmission case, the output shaft of a steering motor is connected with the second input shaft end of the right transmission case, the output shaft end of the right transmission case is connected with a right input shaft of the slave driving axle, the output end of the slave driving axle is connected with a loading hydraulic pump, and a hydraulic pipeline is arranged between an oil output port of the loading hydraulic pump and an oil input port of the hydraulic motor. The arranged hydraulic system can return the mechanical energy at the output end of the tested driving axle to the input end of the tested driving axle, and thus the output energy of the driving axle becomes testing power; the energy recycling mode is simple.

Description

【Technical field】 [0001] The invention belongs to the technical field of vehicle structural performance testing, in particular to a device for testing the performance of a vehicle drive axle. 【Background technique】 [0002] At present, there are generally two types of benches for testing the dynamic performance of drive axles. One is an open drive axle test bench in which the power flow of the test bench is not closed. The open test bench has a simple structure and is easy to install, but the output power of the drive axle can no longer be used for feedback, the test bench consumes a lot of energy, and the test cost is high. Usually, this kind of test bench is suitable for drive axle tests with small test power or short test periods. . The other is a closed test bench with a power flow cycle of the test bench. This kind of test bench can recover the energy consumed by the test, and the test energy loss is small. It is suitable for the drive axle test with high power and lon...

Claims

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Application Information

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IPC IPC(8): G01M13/02G01M17/00F15B21/08
Inventor 郁录平薛雪胡羽成胡小平李鹏波谢晓鹏张长伟周晨龙
Owner CHANGAN UNIV