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Test device for control valve body of speed changer of engineering vehicle

A transmission control and engineering vehicle technology, which is applied in the direction of machine gear/transmission mechanism testing, etc., can solve the problems of low precision, high manual labor intensity, complicated operation, etc., and achieve the effect of high versatility, improved operability and practicability

Inactive Publication Date: 2015-06-24
贵州凯星液力传动机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a test device for the control valve body of the transmission of engineering vehicles to solve the problems of complex operation, high labor intensity, low precision and affecting work efficiency existing in the traditional detection device

Method used

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  • Test device for control valve body of speed changer of engineering vehicle

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Experimental program
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Effect test

Embodiment

[0025] Embodiment: When in use, 220V AC is connected to the general switching power supply 2 through the main power switch 8 so that the 220V AC is converted into 24V DC to supply power for the entire test device; The upper shunt 4, the specification of the shunt 4 is 2A, 200mV, and the number is ten in total. The controller 1 monitors the current value of the solenoid valve by measuring the voltage value of the shunt 4. Connect the output signal of the pressure sensor 3 to the controller 1. The specification of the pressure sensor 3 is 4Mpa, and the output is a 0-5V signal. There are six pressure sensors 3 in total. The valve body is monitored by measuring the voltage value of the pressure sensor 3 oil pressure value. When carrying out valve body test, press main power switch 2 and test start-stop button 7 successively, then test device just can repeatedly carry out valve body shift cycle test work, if want to stop testing, press test start-stop button 7 again.

[0026] The ...

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Abstract

The invention discloses a test device for a control valve body of a speed changer of an engineering vehicle. The test device comprises a main power supply switch, a universal switching power supply, a controller and a current divider which are sequentially connected in series, wherein the controller is connected with a monitoring module and a pressure sensor, the controller is further connected with a test start and stop button, and the main power supply switch and the current divider are each provided with an external port. The device has the advantages that output and input signals of the test device are monitored and controlled in real time, fault reasons in the test process can be known in time, and operators are helped to complete the analysis process more rapidly. By the adoption of centralized installation and integration of operation, display and monitoring, operability and practicality of the test process are improved. Meanwhile, the device has high universality and can meet test requirements of different types of valve bodies.

Description

technical field [0001] The invention relates to the technical field of detection of a transmission valve body of an engineering vehicle, in particular to a testing device for a control valve body of a transmission of an engineering vehicle. Background technique [0002] In the transmission of engineering vehicles, the on-off of the oil circuit in the valve body is the key to whether the hydraulic transmission can work normally. If the oil circuit is blocked or fails, it will directly affect the transmission performance of the vehicle, and even problems such as jamming and flameout will occur. The existing valve body test devices of this type of hydraulic transmission generally use a primary instrument for direct measurement, and the valve body test steps can only be operated manually, especially when a valve body is repeatedly shifted. Operation, the operator not only has to monitor the data, but also operates the gear shift, and the workload is very heavy. In addition, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/02
Inventor 刘小红刘丽梁旭冯杨
Owner 贵州凯星液力传动机械有限公司
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