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Hydraulic enclosed loading test bench for wheel and axle

A loading test, closed technology, applied in the direction of wheel testing, vehicle testing, machine gear/transmission mechanism testing, etc., can solve the problems of complex and changeable working conditions, large power, large range of working parameters, etc., to achieve gear shifting Flexible and convenient, compact design and realize the effect of automatic control

Inactive Publication Date: 2006-10-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of power input and output shafts of the heavy-duty off-road vehicle wheel axle, the large power, the large range of operating parameters, and the complex and changeable working conditions, it is difficult to conduct a comprehensive test under actual conditions on an ordinary hydraulic test bench. Completed

Method used

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  • Hydraulic enclosed loading test bench for wheel and axle
  • Hydraulic enclosed loading test bench for wheel and axle
  • Hydraulic enclosed loading test bench for wheel and axle

Examples

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Embodiment Construction

[0021] The present invention will be described in more detail below in conjunction with accompanying drawing:

[0022] combine figure 1 , 4 sets of hydraulic ports of secondary components 1, 5, 9 and 13 are connected in parallel to constant pressure networks 18 and 19. The mechanical ports are connected with the tested wheel axles 20, 21, 22 through the rotational speed and torque measuring instruments 2, 6, 10 and 14, the gearboxes 3, 7, 11 and 15, and the connecting shafts 4, 8, 12 and 16. The secondary element 1 works in the motor condition, converts hydraulic energy into mechanical energy, and is used to simulate the driving force of the vehicle engine. It forms a speed control system with the speed torque measuring instrument 2 and the HNC100 controller 32 . The secondary components 5, 9, 13 work in pump conditions, convert mechanical energy into hydraulic energy, and load the three output ports of the tested axle respectively; the same as the corresponding speed torque ...

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Abstract

The invention discloses a multifunctional integrated automatic hydraulic closed load test table, which is formed by a computer control system, a simulate load system, a pressure-constant oil source and oil tube, and a mechanical system. Wherein, the simulate load system is formed by a driving unit, a secondary output unit, a left wheel load unit, and a right wheel load unit. The test table is a cross shape while the center is the tested element; the wheel and bridge of tested element is at the center of test table; the resistance load generated by the load unit simulate wheel and the back bridge supply torque to the output of tested element; the torque is transmitted to the computer control system which can control the whole system; the pressure-constant oil source uses motor to drive the pressure-constant variable pump; the mechanical system comprises a clamp integration, a cast iron table, a gear box and a secondary element clamper. The invention can realize the 1+3 load mode, while the load power can reach 350KW, to meet the demand of full-power load test of variable heavy off-road vehicle driving bridge and wheels, to realize the automation of load system.

Description

(1) Technical field [0001] The invention relates to a loading test bench for a vehicle transmission device, in particular to a hydraulic closed loading test bench for the fatigue life test of a transmission bridge, a wheel-side reducer and other transmission components of a heavy vehicle. (2) Background technology [0002] The closed loading system is divided into electric closed, mechanical closed and hydraulic closed. [0003] The load torque of the electric closed loading system is formed by the generator, and the electric energy generated by the load generator is recovered through the grid and fed back to the drive motor to form a closed power flow, thereby reducing the energy consumption of the test, and the system efficiency is high. However, the electrical equipment used is huge and complex, and because the power recovery technology is a very specialized technology, the cost of the whole set of devices is very high, and because the recovery efficiency of the recovery ...

Claims

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Application Information

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IPC IPC(8): G01M13/02G01M17/007G01M17/013
Inventor 韩俊伟姜洪洲丛大成叶正茂赵新通
Owner HARBIN INST OF TECH
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