CN221898771U - Microcomputer controlled 120 valve test bench - Google Patents

Abstract

The utility model relates to a microcomputer-controlled 120 valve test bench, including a pressure acquisition module, a solenoid valve module, a pneumatic module, a clamping module, a simulation pipe system module and a control module. One end of the pressure acquisition module is connected to the pneumatic module, and the other end is connected to the host computer. The pneumatic module is connected to the clamping module through the simulation pipe system module. The clamping module is used to clamp the 120 valve to be tested. The pneumatic module is used to provide high-pressure air. The solenoid valve module is arranged on the simulation pipe system module and connected to the control module to control the on-off of the air path of the simulation pipe system module. The utility model can realize detailed detection of the performance of the 120 valve through a microcomputer control system, and can perform continuous detection or a single detection to help the maintenance personnel determine the fault location or provide a basis for judgment.

Description

Microcomputer controlled 120 valve test bench

Technical Field

The utility model relates to the technical field of test equipment, in particular to a microcomputer-controlled 120-valve test bench.

Background Art

The 120-valve air brake is the main braking system of railway freight trains, and the 120-type air control valve is an important component of the 120-valve air brake, which directly affects the reliability of the brake, and then affects the safe operation of railway freight cars and the normal operation of railways. Therefore, the maintenance quality of the 120-type air control valve must be improved. The 102 valve is prone to various failures in the early stage of loading, and it is difficult to repair the 120 valve on the train. How to test the 120 valve to reduce its loading failure has become a problem that technical personnel in this field urgently need to solve.

Utility Model Content

The utility model aims to provide a microcomputer-controlled 120 valve test bench, which simulates the train gas circuit and operating environment, performs a brake test on the 120 valve, and solves the problem of high failure rate in the initial stage of 120 valve inspection and installation.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A microcomputer-controlled 120 valve test bench comprises a pressure acquisition module, a solenoid valve module, a pneumatic module, a clamping module, a simulated piping module and a control module; one end of the pressure acquisition module is connected to the pneumatic module, and the other end is connected to a host computer; the pneumatic module is connected to the clamping module through the simulated piping module; the clamping module is used to clamp the 120 valve to be tested; the pneumatic module is used to provide high-pressure air; the solenoid valve module is arranged on the simulated piping module and is connected to the control module to control the on-off of the air circuit of the simulated piping module.

The pneumatic module includes an air storage cylinder, an auxiliary air cylinder, a train pipe volume air cylinder, an emergency chamber, a brake cylinder, an acceleration relief air cylinder and a local reduction chamber, and the air storage cylinder, the auxiliary air cylinder, the train pipe volume air cylinder, the emergency chamber, the brake cylinder, the acceleration relief air cylinder and the local reduction chamber are all connected to the simulation pipe system module.

The solenoid valve module includes a solenoid valve and a solenoid valve drive assembly. There are multiple solenoid valves, one end of each solenoid valve is connected to the solenoid valve drive assembly, and the other end is connected to the simulation piping module. The solenoid valve drive assembly is connected to the control module.

The pressure acquisition module includes a pressure transmitter, and a plurality of the pressure transmitters are provided. One end of each of the pressure transmitters is connected to the pneumatic module, and the other end is connected to the control module.

It also includes a frame, on which an operation panel button module is arranged. The operation panel button module is arranged corresponding to the solenoid valve module and is used to control the on and off of each solenoid valve.

The operating panel button module includes a main control group, a control valve group, a fast-charging air group, a pipe cut-off group and a leak test group; the main control group includes a main line cut-off button; the control valve group includes a train pipe capacity air cylinder fast-charging button, a train pipe capacity air cylinder slow-charging button, a first train pipe capacity air cylinder exhaust button, a second train pipe capacity air cylinder exhaust button, a third train pipe capacity air cylinder exhaust button, a fourth train pipe capacity air cylinder exhaust button, a fifth train pipe capacity air cylinder exhaust button, a train pipe line fast exhaust button, a sixth train pipe capacity air cylinder exhaust button, an auxiliary air cylinder exhaust button, an acceleration relief air cylinder exhaust button and a brake cylinder capacity air cylinder exhaust button; the fast-charging air group includes an auxiliary The air cylinder quick-fill button, the acceleration relief air cylinder quick-fill button, the brake cylinder capacity air cylinder quick-fill button and the emergency room quick-fill button; the pipe cutting group includes the cut-off button between the column cylinder and the column tube, the cut-off button between the auxiliary cylinder and the auxiliary tube, the cut-off button between the control cylinder and the control tube, the cut-off button between the slow cylinder and the slow tube, the cut-off button between the column and the auxiliary tube and the pressure differential gauge, and the cut-off button between the column cylinder and the slow cylinder; the leak test group includes the cut-off button between the auxiliary tube and the flow meter, the cut-off button between the main valve exhaust port and the flow meter, the cut-off button between the slow tube port and the flow meter, the cut-off button between the local reduction port and the flow meter, the action button of the local reduction port leak detection cylinder and the slow tube port leak detection cylinder, and the action button of the main valve exhaust port leak detection cylinder.

Beneficial effects of the utility model:

The utility model is a microcomputer-controlled 120 valve test bench, wherein one end of a pressure acquisition module is connected to the pneumatic module, and the other end is connected to a host computer. The pneumatic module is connected to a clamping module via a simulation piping module, and the clamping module is used to clamp the 120 valve to be tested. The pneumatic module is used to provide high-pressure air. The solenoid valve module is arranged on the simulation piping module and is connected to a control module, and is used to control the on-off of the air path of the simulation piping module. The on-off of the pneumatic module and the simulation piping module is controlled by the solenoid valve module, thereby simulating various faults, and the performance of the 120 valve is tested by the pressure collected by the pressure acquisition module, and the testing process can be automatically performed by the control module.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of a microcomputer-controlled 120-valve test bench of the utility model;

FIG. 2 is a schematic diagram of the piping system of the microcomputer-controlled 120-valve test bench of the utility model.

The names corresponding to the marks in the figure are:

1. The cut-off button between the cylinder and the pipe, 2. The cut-off button between the auxiliary cylinder and the auxiliary pipe, 3. The cut-off button between the control cylinder and the control pipe, 4. The exhaust button of the brake cylinder capacity air cylinder, 5. The cut-off button between the slow cylinder and the slow pipe, 6. The cut-off button between the slow pipe port and the flow meter, 7. The exhaust button of the sixth train pipe capacity air cylinder, 8. The cut-off button between the main valve exhaust port and the flow meter, 9. The fast-charging button of the acceleration relief air cylinder, 10. The main line cut-off button, 11. The cut-off button between the auxiliary pipe and the flow meter, 12. The cut-off button between the cylinder and the slow cylinder, 13. The fast-charging button of the brake cylinder capacity air cylinder, 15. The cut-off button between the column auxiliary pipe and the differential pressure gauge, 16. The fast-charging button of the auxiliary air cylinder, 17. Emergency room fast-fill air button, 18. Auxiliary air cylinder exhaust button, 19. Accelerated relief air cylinder exhaust button, 21. Shut-off button between local reduction port and flow meter, 22. Local reduction port leak detection cylinder and deceleration pipe port leak detection cylinder action button, 23. Main valve exhaust port leak detection cylinder action button, 1.1. Train pipe capacity air cylinder fast-fill button, 1.2. Train pipe capacity air cylinder slow-fill button, 1.3. First train pipe capacity air cylinder exhaust button, 1.4. Second train pipe capacity air cylinder exhaust button, 1.5. Third train pipe capacity air cylinder exhaust button, 1.6. Fourth train pipe capacity air cylinder exhaust button, 1.7. Fifth train pipe capacity air cylinder exhaust button.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

The microcomputer-controlled 120-valve test bench in the embodiment of the utility model realizes detailed detection of the performance of the 120 valves through a microcomputer control system. It can perform continuous detection or a single item detection to help the maintenance personnel determine the fault location or provide a basis for judgment.

As shown in Figures 1 and 2, the microcomputer-controlled 120 valve test bench includes a pressure acquisition module, a solenoid valve module, a pneumatic module, a clamping module, a simulated piping module and a control module. One end of the pressure acquisition module is connected to the pneumatic module, and the other end is connected to the host computer. The pneumatic module is connected to the clamping module through the simulated piping module. The clamping module can clamp the 120 valve to be tested. The pneumatic module is used to provide high-pressure air. The solenoid valve module is arranged on the simulated piping module and is connected to the control module to control the on-off of the air circuit of the simulated piping module.

In actual use, the pressure acquisition module can be used to collect the pressure in the simulated piping module, and the solenoid valve module can be used to control the on/off of the pneumatic module and the simulated piping module, thereby simulating various faults. The pressure collected by the pressure acquisition module is used to perform performance testing on the 120 valve, and the testing process can be automatically performed through the control module.

Specifically, the pneumatic module includes an air storage cylinder, an auxiliary air cylinder, a train pipe volume air cylinder, an emergency chamber, a brake cylinder, an acceleration relief air cylinder and a local reduction chamber. The air storage cylinder, auxiliary air cylinder, train pipe volume air cylinder, emergency chamber, brake cylinder, acceleration relief air cylinder and local reduction chamber are all connected to the simulation pipe system module, wherein two train pipe volume air cylinders are provided, recorded as volume chamber one and volume chamber two, and each air cylinder is used to store the pressure air of each part. Each air cylinder is connected with a pressure gauge, and the pressure of each air cylinder can be visualized. In this embodiment, 4 1.5-level double-needle pressure gauges are equipped to display the total air and column air cylinders, auxiliary air cylinders and acceleration relief air cylinders, train pipes and emergency chambers, brake cylinders and local reduction chambers, 5 1.6-level pressure gauges, air storage cylinders, brake cylinder pipes, acceleration relief air cylinder pipes, auxiliary air cylinder pipes, and train pipes.

The solenoid valve module includes a solenoid valve and a solenoid valve driving assembly. The solenoid valve driving assembly adopts a driving plate with an isolation function to drive each solenoid valve to operate. The solenoid valve driving assembly is connected to the control module and can receive instructions from the control module to control the opening and closing of the corresponding battery valve. In this embodiment, 32 solenoid valves are provided. The solenoid valve adopts a plate-type connecting valve and an internal pilot two-position two-way solenoid valve to control the charging and exhausting of the pipeline.

As shown in FIG1 , the pressure acquisition module includes a pressure transmitter, which can convert the pressure signal into an electrical signal. There are multiple pressure transmitters, one end of each pressure transmitter is connected to the pneumatic module, and the other end is connected to the control module.

In this embodiment, ten pressure transmitters are provided, corresponding to the air storage cylinder, train pipe, auxiliary air cylinder, working air cylinder, volume chamber 1, volume chamber 2, brake cylinder, emergency train pipe, emergency room, and local reduction room respectively.

As shown in FIG2, it is a schematic diagram of the piping system of the 120 valve test bench. FIG2 shows the specific structure of the piping system simulation module. The 120 valve includes a main valve and an emergency valve. The main valve and the emergency valve are fixed by a clamping module. The clamping module is arranged on a rack. The clamping module is provided with a port connected to the piping system, which is convenient for connecting to the piping system simulation module. At the same time, an operation panel button module is arranged on the rack. The operation panel button module includes a plurality of operation buttons. Each operation button corresponds to a solenoid valve. Through an external control button, the opening and closing of each gas path can be manually selected through the operation button to realize different functions.

Specifically, as shown in FIG2 , the operation panel button module includes a master control group, a control valve group, a fast-filling air group, a pipe cutting group, and a leak test group;

The main control group includes a main line cut-off button 10, through which the main line cut-off button 10 is used to control the on and off of the gas path of the main line.

The control valve group includes a train pipe capacity air cylinder fast charge button 1.1, a train pipe capacity air cylinder slow charge button 1.2, a first train pipe capacity air cylinder exhaust button 1.3, a second train pipe capacity air cylinder exhaust button 1.4, a third train pipe capacity air cylinder exhaust button 1.5, a fourth train pipe capacity air cylinder exhaust button 1.6, a fifth train pipe capacity air cylinder exhaust button 1.7, a train pipe pipeline fast exhaust button, a sixth train pipe capacity air cylinder exhaust button 7, an auxiliary air cylinder exhaust button 18, an acceleration relief air cylinder exhaust button 19 and a brake cylinder capacity air cylinder exhaust button 4. Different buttons are used to realize the opening and closing of the corresponding pipelines.

The fast-charging air group includes an auxiliary air cylinder fast-charging air button 16, an acceleration relief air cylinder fast-charging air button 9, a brake cylinder capacity air cylinder fast-charging air button 13 and an emergency room fast-charging air button 17. Different buttons are used to realize the opening and closing of corresponding pipelines.

The pipe cutting group includes a cut-off button 1 between the column cylinders and the column pipes, a cut-off button 2 between the auxiliary cylinder and the auxiliary pipe, a cut-off button 3 between the control cylinder and the control pipe, a cut-off button 5 between the buffer cylinder and the buffer pipe, a cut-off button 15 between the column auxiliary pipes and the pressure differential gauge, and a cut-off button 12 between the column cylinders and the buffer cylinder. Different buttons are used to realize the opening and closing of the corresponding pipelines.

The leak test group includes a cut-off button 11 between the auxiliary pipe and the flow meter, a cut-off button 8 between the main valve exhaust port and the flow meter, a cut-off button 6 between the slow-down pipe port and the flow meter, a cut-off button 21 between the local reduction port and the flow meter, an actuating button 22 for the leak detection cylinder of the local reduction port and the slow-down pipe port, and an actuating button 23 for the leak detection cylinder of the main valve exhaust port. Different buttons are used to realize the opening and closing of the corresponding pipelines.

Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.

Claims (6)

1. A microcomputer-controlled 120 valve test bench, characterized in that it includes a pressure acquisition module, a solenoid valve module, a pneumatic module, a clamping module, a simulated piping module and a control module; one end of the pressure acquisition module is connected to the pneumatic module, and the other end is connected to a host computer, the pneumatic module is connected to the clamping module through the simulated piping module, the clamping module is used to clamp the 120 valve to be tested, the pneumatic module is used to provide high-pressure air, the solenoid valve module is arranged on the simulated piping module, and is connected to the control module, and is used to control the on-off of the air circuit of the simulated piping module. 2. The microcomputer-controlled 120-valve test bench according to claim 1 is characterized in that: the pneumatic module includes an air storage cylinder, an auxiliary air cylinder, a train pipe volume air cylinder, an emergency chamber, a brake cylinder, an acceleration relief air cylinder and a local reduction chamber, and the air storage cylinder, auxiliary air cylinder, train pipe volume air cylinder, emergency chamber, brake cylinder, acceleration relief air cylinder and local reduction chamber are all connected to the simulation pipe system module. 3. The microcomputer-controlled 120-valve test bench according to claim 2 is characterized in that: the solenoid valve module includes a solenoid valve and a solenoid valve drive assembly, and there are multiple solenoid valves, one end of each solenoid valve is connected to the solenoid valve drive assembly, and the other end is connected to the simulation piping module, and the solenoid valve drive assembly is connected to the control module. 4. The microcomputer-controlled 120-valve test bench according to claim 3 is characterized in that: the pressure acquisition module includes a pressure transmitter, and there are multiple pressure transmitters, one end of each pressure transmitter is connected to the pneumatic module, and the other end is connected to the control module. 5. The microcomputer-controlled 120-valve test bench according to claim 4 is characterized in that it also includes a frame, on which an operation panel button module is arranged, and the operation panel button module is arranged corresponding to the solenoid valve module for controlling the on and off of each solenoid valve. 6. The microcomputer-controlled 120-valve test bench according to claim 5 is characterized in that: the operation panel button module includes a master control group, a control valve group, a fast-filling air group, a pipe cut-off group and a leak test group; the master control group includes a main line cut-off button; the control valve group includes a train pipe capacity air cylinder fast-filling button, a train pipe capacity air cylinder slow-filling button, a first train pipe capacity air cylinder exhaust button, a second train pipe capacity air cylinder exhaust button, a third train pipe capacity air cylinder exhaust button, a fourth train pipe capacity air cylinder exhaust button, a fifth train pipe capacity air cylinder exhaust button, a train pipe line fast exhaust button, a sixth train pipe capacity air cylinder exhaust button, an auxiliary air cylinder exhaust button, an acceleration relief air cylinder exhaust button and a brake cylinder capacity air cylinder Cylinder exhaust button; the quick-fill air group includes the auxiliary air cylinder quick-fill air button, the acceleration relief air cylinder quick-fill air button, the brake cylinder capacity air cylinder quick-fill air button and the emergency room quick-fill air button; the pipe cutting group includes the cut-off button between the column cylinder and the column tube, the cut-off button between the auxiliary cylinder and the auxiliary tube, the cut-off button between the control cylinder and the control tube, the cut-off button between the slow cylinder and the slow tube, the cut-off button between the column auxiliary tube and the pressure differential gauge, and the cut-off button between the column cylinder and the slow cylinder; the leak test group includes the cut-off button between the auxiliary tube and the flow meter, the cut-off button between the main valve exhaust port and the flow meter, the cut-off button between the slow tube port and the flow meter, the cut-off button between the local reduction port and the flow meter, the action button of the local reduction port leak detection cylinder and the slow tube port leak detection cylinder, and the action button of the main valve exhaust port leak detection cylinder.