CN-224202747-U - Comprehensive test bed for pneumatic components of special vehicles

CN224202747UCN 224202747 UCN224202747 UCN 224202747UCN-224202747-U

Abstract

The utility model discloses a comprehensive test bed for pneumatic components of a special vehicle, which comprises a test bed base frame, a control part, an executing part, a power element, a monitoring part and a pipe assembly, wherein the control part comprises a hand brake valve, an incremental valve and the like, the executing part comprises a diaphragm brake air chamber and a spring brake air chamber, the power element comprises an air storage cylinder, the monitoring part comprises a double-needle air pressure meter, pneumatic communication is realized through the pipe assembly, and the working principle of a gas circuit system of the special vehicle is simulated.

Inventors

WANG YONG
ZOU CHANGHUI
YAN PING

Assignees

中国广州金墩总公司

Dates

Publication Date: 20260505
Application Date: 20250428

Claims (7)

1. The comprehensive test bed for the pneumatic components of the special vehicles is characterized by comprising a test bed base frame, wherein a plurality of control pieces, execution pieces, power elements and monitoring pieces are arranged on the test bed base frame, the test bed base frame is also provided with a pipe assembly, and the control pieces, the power elements, the 2 execution pieces and the monitoring pieces are all in pneumatic communication with each other through the pipe assembly.
2. The comprehensive test bed for the pneumatic components of the special vehicle, as set forth in claim 1, wherein the control member comprises a hand brake valve, an incremental valve, a pressure regulating valve, a hand relay valve, a foot brake relay valve and a foot brake pedal assembly, the actuating member comprises a diaphragm brake air chamber and two groups of spring brake air chambers, the power element comprises a parking reserve air storage cylinder, a front wheel air storage cylinder and a middle and rear wheel air storage cylinder, and the monitoring member comprises a double-needle air pressure meter.
3. The comprehensive test bed for the pneumatic components of the special vehicle, as set forth in claim 2, wherein the air outlets of the front wheel air storage cylinder, the middle and rear wheel air storage cylinder and the parking reserve air storage cylinder are all connected with a four-pipeline protection valve through air pipes of a pipe assembly, one air outlet of the four-pipeline protection valve is connected with a pressure regulating valve, and the other air outlet of the four-pipeline protection valve is connected with a foot brake pedal assembly.
4. The comprehensive test bed for pneumatic components of special vehicles according to claim 1, wherein one air outlet of the foot brake pedal assembly is connected with a double-needle air pressure meter, and the other air outlets of the foot brake pedal assembly are respectively connected with an incremental valve and a foot brake relay valve.
5. A test stand for a pneumatic component of a specialty vehicle as set forth in claim 4 wherein the outlet of the progressive valve is connected to the diaphragm brake chamber.
6. The comprehensive test bed for the pneumatic components of the special vehicle, as set forth in claim 4, wherein the air outlets of the foot brake relay valve are connected with the spring brake air chamber, the air outlets of the spring brake air chamber are connected with the air inlet of the hand relay valve, and the hand relay valve is provided with the air outlet connected with the hand brake valve.
7. The comprehensive test bed for pneumatic components of special vehicles as set forth in claim 6, wherein the foot brake relay valve is further provided with an air inlet connected with the middle and rear wheel air storage cylinder.

Description

Comprehensive test bed for pneumatic components of special vehicles Technical Field The utility model relates to the technical field related to furniture equipment, in particular to a comprehensive test bed for pneumatic components of special vehicles. Background In the field of maintenance and detection of special vehicles, pneumatic components are used as important components of vehicle braking and auxiliary gas systems, and the reliability and stability of the performance of the pneumatic components directly affect the safety and the running efficiency of the vehicle. However, in existing equipment repair facilities, a complete gas circuit system detection equipment is often lacking, resulting in an inability to fully perform functional detection and performance assessment of components in the gas circuit system prior to a test run. This deficiency makes it difficult to find some potential component damage problems in time, thereby extending the production schedule of the workshops and increasing maintenance costs. In addition, the gas circuit system of the special vehicle is generally distributed at a plurality of positions of the vehicle body, and the surrounding barriers are more, so that the operation difficulty of maintenance personnel is increased, and great obstruction is caused to the study of repair workers and the control of the structure and the working principle of related systems. In the prior art, a comprehensive test device capable of intensively simulating the working state of pneumatic components of a special vehicle is not available, so that the working condition of each component is intuitively displayed, and maintenance personnel are helped to comprehensively know the operation mechanism of the gas circuit system. Therefore, developing a comprehensive test bed capable of completely simulating the working principle of a real vehicle gas circuit system for detecting the tightness, the functionality and the reliability of the gas circuit system becomes a technical problem to be solved urgently at present. The appearance of the device can obviously improve the maintenance quality and efficiency, and simultaneously provide a more visual learning tool for maintenance personnel. Disclosure of utility model The utility model aims to provide a comprehensive test bed for pneumatic components of special vehicles, which overcomes the defects in the prior art. In order to achieve the above object, the present utility model provides the following technical solutions: A comprehensive test bed for pneumatic components of special vehicles comprises a test bed base frame, a control piece, an execution piece, a power element, a monitoring piece and a pipe assembly. The test bed base frame is used as a basic structure and used for supporting and fixing all pneumatic components, so that stability and safety of all the components in the test process are ensured. The control piece, the executing piece, the power element and the monitoring piece are in pneumatic communication through the pipe assembly so as to simulate the working principle of a pneumatic system of the special vehicle. The control piece comprises a hand brake valve, an incremental valve, a pressure regulating valve, a hand relay valve, a foot brake relay valve and a foot brake pedal assembly. The hand brake valve is used for manually controlling the exhaust operation of the air circuit system, and the hand relay valve is connected with the air outlet of the spring brake air chamber and is linked with the hand brake valve through the air outlet of the hand relay valve. The incremental valve is used to increase the air pressure signal and transmit it to the diaphragm brake chamber, thereby completing the conversion of air pressure to mechanical force. The pressure regulating valve is connected with one air outlet of the four-pipeline protection valve and is used for regulating the pressure value in the air channel. The foot brake pedal assembly is provided with a plurality of air outlets which are respectively connected with the double-needle barometer, the incremental valve and the foot brake relay valve and used for realizing multipath control on the air path system. Further, the actuator includes a diaphragm brake chamber and two sets of spring brake chambers. The diaphragm brake chamber converts air pressure into mechanical force by receiving an air pressure signal transmitted by the incremental valve, so that a brake function is realized. The spring brake air chamber is connected with an air outlet of the foot brake relay valve and is connected with a middle and rear wheel air storage cylinder through an air inlet, so that air supply in the braking process is ensured. In particular, the power element comprises a parking standby gas storage cylinder, a front wheel gas storage cylinder and a middle and rear wheel gas storage cylinder. The air outlets of the front wheel air storage cylinder, the middle and rear wheel air storage cylinder and