CN112556944A - Air tightness test bed for braking device - Google Patents
Air tightness test bed for braking device Download PDFInfo
- Publication number
- CN112556944A CN112556944A CN201910952775.1A CN201910952775A CN112556944A CN 112556944 A CN112556944 A CN 112556944A CN 201910952775 A CN201910952775 A CN 201910952775A CN 112556944 A CN112556944 A CN 112556944A
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- China
- Prior art keywords
- clamping
- test
- positioning
- brake
- pneumatic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses an air tightness test bed of a braking device, which comprises a whole machine and a whole machine, wherein the whole machine consists of a fixed end and a movable end; the fixed end consists of a PLC, an electrical system, a pneumatic system, a detection system and a control panel, the fixed end is provided with four pneumatic positioning and clamping devices, an air cylinder is arranged in the fixed end, and clamping and loosening actions of the air cylinder are controlled through four manual control valves; the air cylinder is also arranged in the moving end, the clamping and loosening actions of the air cylinder are controlled through the four manual control valves, the lifting mechanism is arranged in the moving end, the height of the four pneumatic positioning clamping devices can be adjusted to meet the requirements of clamping of brake pipes in different shapes, the fixing air cylinder is arranged at the bottom of the moving end, fixing of the moving end after clamping can be achieved, and leakage tests before the brake pipes of different models and different shapes of railway wagons are assembled can be completed.
Description
Technical Field
The invention relates to a special test device for air tightness of a railway vehicle brake device, which can carry out a leakage check test on a brake pipe of a truck and is also suitable for an acceptance test of the railway vehicle brake pipe.
Background
At present, railway freight car arresting gear's detection mainly detects with manual mode, detects model, size singleness, and the testing result judges with labour personnel's experience more moreover, and efficiency and testing result all have great error and mistake, serious influence product safety in utilization and life cycle.
Disclosure of Invention
In order to overcome the defects, the air-tightness test bed for the braking device, which is developed by the invention, can realize air pressure tests and leakage tests before assembly on the braking pipes of different types and shapes of the railway freight car, greatly improves the production efficiency and the detection quality and also reduces the labor capacity.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a brake equipment gas tightness test platform which characterized in that: the whole machine consists of a fixed end (1) and a movable end (9); the fixed end (1) consists of an operation panel (2), a PLC (3) and a pneumatic system (4); the operating panel (2) is provided with 4 pressure display meters (21), a data printing port (22), a touch screen (23) and control buttons (24); the 4 pressure display meters (21) are used for displaying real-time pressure during the test; the data printing port (22) is used for realizing the real-time data printing function; the touch screen (23) is used for realizing selection and control of performance test, function test, manual test, system calibration, password setting and parameter setting functions of the brake pipe; the control button (24) is mainly used for realizing the functions of starting, stopping, sudden stop protection and alarm prompt of the air tightness test; the fixed end (1) is directly controlled by an industrial PLC (3), the test process is displayed on the operation panel (2) in real time, and real-time control and continuous test of the test process are realized.
Preferably, the pneumatic system (4) comprises 4 pneumatic positioning and clamping devices (6), can realize simultaneous detection tests of 4 stations, is internally provided with a cylinder (61) and is matched with a special positioning clamping plate (16), and controls clamping and loosening actions of the cylinder (61) through 4 fixed-end manual control valves (7), so that positioning, clamping and loosening actions of brake pipes of different models and different shapes are realized; the pneumatic system (4) adopts a mode that the solenoid valve (41) controls the industrial-grade pneumatic control ball valve (42) to carry out a pneumatic test.
Preferably, the moving end (9) consists of a moving end manual control valve (10), a positioning cylinder (11), a lifting device (12), a universal wheel (13) and a positioning clamping device (14); the movable end (9) flexibly moves through a universal wheel (13), 4 positioning cylinders (11) are arranged at the bottom of the movable end, and the movable end (9) can be fixed on the flat ground through the positioning cylinders (11) after the brake pipe is connected; the positioning clamping device (14) is internally provided with a clamping cylinder (15), and clamping and loosening actions of the clamping cylinder (15) are controlled through 4 movable end manual control valves (10), so that the movable end (9) is positioned and clamped on the brake pipe; the lifting device (12) can adjust the height of the 4 positioning and clamping devices (14), so that the positioning and clamping of the brake pipes of different models, different shapes and special shapes can be met.
Preferably, the fixed end (1) and the movable end (9) are matched for use, so that the air pressure test and the leakage test before assembly of the railway wagon brake pipe are automatically completed.
The device has the advantages of reasonable design, compact structure, advanced process, simple and convenient operation, stable operation and higher automation degree, and is ideal device for detecting the air tightness of the wagon brake device;
the main characteristics are as follows:
1. the equipment process flow is smooth, and the detection applicability is strong;
2. simple structure and convenient maintenance.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1: whole machine main view
FIG. 2: end view of the fixture
FIG. 3: moving end view
FIG. 4: pneumatic positioning clamping device enlarged view
FIG. 5: special positioning clamping plate enlarged view
In the figure: 1-fixed end, 2-operation panel, 3-PLC, 4-pneumatic system, 6-pneumatic positioning clamping device, 7-fixed end manual control valve, 9-moving end, 10-moving end manual control valve, 11-positioning cylinder, 12-lifting device, 13-universal wheel, 14-positioning clamping device, 15-clamping cylinder and 16-special positioning clamping plate;
21-pressure display meter, 22-data printing port, 23-touch screen and 24-control button;
41-solenoid valve, 42-pneumatic control ball valve;
61-a cylinder;
Detailed Description
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5: the position of a movable end (9) is adjusted according to the distance between two ends of a brake pipe, 4 positioning clamping devices (14) are subjected to height adjustment through a lifting device (12), the special positioning clamping plate (16) is matched to preliminarily position the brake pipes of different models, shapes and shapes, and then the clamping and loosening actions of a clamping cylinder (15) are controlled through 4 movable end manual control valves (10), so that the movable end (9) is positioned and clamped before one end of the brake pipe is detected; the other end is fixed on the pneumatic positioning and clamping device (6), and then is clamped on the fixed end (1) through a fixed end manual control valve (7) to control the cylinder (61).
Automatic tests, manual tests or automatic/manual button modes on an operation panel (2) can be selected through a touch screen (23) to perform leakage tests, a printing window body can be popped up on the touch screen (23) before the automatic tests are used, an operator can randomly select printing and non-printing and then jump to the automatic test window body, test data are printed through a data printing port (22), a start button on the operation panel (2) is clicked, the processes of air filling, stabilizing and pressure maintaining are automatically operated, whether leakage occurs or not is automatically detected, air exhaust operation is performed after the leakage is detected to be qualified, and the detection of a brake pipe in the next batch is waited; when the detection result is unqualified, the operation panel (2) gives out audible and visual alarm and automatically stops detection, and after the detection is finished, the test date, the brake pipe code number, the test pressure and the qualified and unqualified information of the brake pipe can be displayed on a report printed by the data printing port (22); after alarming, an operator can directly use the soapy water to search a specific leakage point, air is exhausted after the checking is finished, and after the air exhausting action is finished, the fixed end manual control valve (7) and the movable end manual control valve (10) on the fixed end (1) are operated to loosen the two ends of the brake pipe and detach the brake pipe for the next detection test.
The pneumatic positioning and clamping device (6) is of a 4-station structure, a positioning cylinder (61) is arranged in the pneumatic positioning and clamping device, and the cylinder (61) is controlled to act through 4 positioning manual control valves (7), so that the positioning, clamping and loosening actions of brake pipes of different models and shapes are met; the pneumatic system (4) adopts a mode that the solenoid valve (41) controls the industrial-grade pneumatic control ball valve (42) to carry out a pneumatic test.
Claims (4)
1. The utility model provides a brake equipment gas tightness test platform which characterized in that: the whole machine consists of a fixed end (1) and a movable end (9); the fixed end (1) consists of an operation panel (2), a PLC (3) and a pneumatic system (4); the operating panel (2) is provided with 4 pressure display meters (21), a data printing port (22), a touch screen (23) and control buttons (24); the 4 pressure display meters (21) are used for displaying real-time pressure during the test; the data printing port (22) is used for realizing the real-time data printing function; the touch screen (23) is used for realizing selection and control of performance test, function test, manual test, system calibration, password setting and parameter setting functions of the brake pipe; the control button (24) is mainly used for realizing the functions of starting, stopping, sudden stop protection and alarm prompt of the air tightness test; the fixed end (1) is directly controlled by an industrial PLC (3), the test process is displayed on the operation panel (2) in real time, and real-time control and continuous test of the test process are realized.
2. A brake air-tightness test stand according to claim 1, wherein: the pneumatic system (4) comprises 4 pneumatic positioning and clamping devices (6), can realize simultaneous detection tests of 4 stations, is internally provided with a cylinder (61) and is matched with a special positioning clamping plate (16), and controls the clamping and loosening actions of the cylinder (61) through 4 fixed-end manual control valves (7), so that the positioning clamping and loosening actions of brake pipes of different models and shapes are realized; the pneumatic system (4) adopts a mode that the solenoid valve (41) controls the industrial-grade pneumatic control ball valve (42) to carry out a pneumatic test.
3. A brake air-tightness test stand according to claim 1, wherein: the moving end (9) consists of a moving end manual control valve (10), a positioning cylinder (11), a lifting device (12), a universal wheel (13) and a positioning clamping device (14); the movable end (9) flexibly moves through a universal wheel (13), 4 positioning cylinders (11) are arranged at the bottom of the movable end, and the movable end (9) can be fixed on the flat ground through the positioning cylinders (11) after the brake pipe is connected; the positioning clamping device (14) is internally provided with a clamping cylinder (15) which is matched with a special positioning clamping plate (16), and the clamping and loosening actions of the clamping cylinder (15) are controlled through 4 movable end manual control valves (10), so that the movable end (9) is positioned and clamped on the brake pipe; the lifting device (12) can adjust the height of the 4 positioning and clamping devices (14), so that the positioning and clamping of the brake pipes of different models, different shapes and special shapes can be met.
4. A brake air-tightness test stand according to claim 1, wherein: the fixed end (1) and the movable end (9) need to be matched for use, so that an air pressure test and a leakage test before assembly of the railway wagon brake pipe are automatically completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952775.1A CN112556944A (en) | 2019-09-26 | 2019-09-26 | Air tightness test bed for braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910952775.1A CN112556944A (en) | 2019-09-26 | 2019-09-26 | Air tightness test bed for braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112556944A true CN112556944A (en) | 2021-03-26 |
Family
ID=75030270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910952775.1A Pending CN112556944A (en) | 2019-09-26 | 2019-09-26 | Air tightness test bed for braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112556944A (en) |
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2019
- 2019-09-26 CN CN201910952775.1A patent/CN112556944A/en active Pending
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