CN104458131A - Sealing performance testing bed for hub brake cylinder of freight car - Google Patents
Sealing performance testing bed for hub brake cylinder of freight car Download PDFInfo
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- CN104458131A CN104458131A CN201410791037.0A CN201410791037A CN104458131A CN 104458131 A CN104458131 A CN 104458131A CN 201410791037 A CN201410791037 A CN 201410791037A CN 104458131 A CN104458131 A CN 104458131A
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- brake
- flywheel
- shaft
- brake cylinder
- worktable
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Abstract
The invention relates to a testing device, in particular to a sealing performance testing bed for a hub brake cylinder of a freight car. The testing bed comprises a working table. A brake base is mounted on the working table. The testing bed further comprises a front diaphragm coupling, a rotational speed and torque sensor and a rear diaphragm coupling, wherein the front diaphragm coupling, the rotational speed and torque sensor and the rear diaphragm coupling are connected in sequence. A brake cylinder barrel of a brake is mounted on the brake base. The extended rotating part of the brake is connected with the front diaphragm coupling. The rear diaphragm coupling is connected with a flywheel shaft. A flywheel is mounted on the flywheel shaft. The shaft end of the flywheel shaft is connected with a synchronous driven pulley, and the flywheel shaft is connected with a speed reducer, a motor diaphragm coupling and a driving motor in sequence. A displacement sensor and a temperature sensor are mounted on the brake cylinder barrel of the brake cylinder. A pressure sensor is mounted on a gas channel pipeline of a solenoid valve of the brake. The testing bed can be used for directly testing the sealing performance of the brake cylinder, simulating vehicle driving energy, measuring the brake torque and the rotational speed of the brake cylinder, the piston displacement and the temperature of the brake cylinder and detecting the braking performance comprehensively.
Description
Technical field
The present invention relates to a kind of proving installation, be specially truck hub checking cylinder sealing property test bed.
Background technology
Checking cylinder is the most important parts of brake system of car, and the quality of sealing property directly affects the security of running car.Therefore carry out comprehensive test to sealing property before use to have very important significance to guarantee brake system security and automobile reliability.Fewer for the testing table of checking cylinder O-ring seal at present, the problem of existing testing table is, testing table adopts static test, namely rotating part is not had, just by allowing checking cylinder piston press to a thrust plate, measure the parameters such as air pressure and judge its sealing property, this method of testing and actual condition have larger gap.And the parameter surveyed is also fewer.
Summary of the invention
For above-mentioned technical matters, the object of the present invention is to provide a kind of truck hub checking cylinder sealing property test bed, when testing table can travel energy according to actual condition, simulated automotive, measure the braking torque of checking cylinder, rotating speed, piston displacement, checking cylinder temperature, concrete technical scheme is comprehensively:
Truck hub checking cylinder sealing property is test bed, comprises worktable, and worktable is provided with brake mount, also comprises the front diaphragm shaft coupling, rotary speed torque sensor, the rear film shaft coupling that connect successively; Rotary speed torque sensor, rear film shaft coupling are fixed on the table respectively by sensor stand and coupling support stand; The braking cylinder barrel of detent is arranged in brake mount, and the rotating part stretched out of detent connects front diaphragm shaft coupling;
The rear film shaft coupling other end is connected with flywheel shaft, and flywheel is arranged on flywheel shaft; Flywheel shaft two ends are fixed on the table respectively by bearing and bearing base;
Flywheel shaft axle head connects synchronous driven pulley, and synchronous driven pulley is connected with synchronous driving pulley by Timing Belt, also comprises the adjustable stretching pulley to synchronously taking up tension; Synchronous driving pulley is arranged on the output shaft of speed reduction unit, and reducer input shaft is connected with drive motor by motor diaphragm coupling, and speed reduction unit and drive motor are separately fixed on worktable;
Described brake cylinder comprises braking cylinder barrel, friction disc, piston, is provided with displacement transducer at the inwall that contacts with piston of braking cylinder barrel, is used for the displacement of measurement piston; At braking cylinder barrel and friction disc touching position, temperature sensor is installed, is used for measuring friction disc frictional heat situation;
Described detent is also connected with solenoid valve, and solenoid valve is connected with gas path pipe, and gas path pipe is provided with pressure transducer.
Described flywheel, synchronous driven pulley, synchronous driving pulley connect with corresponding axle respectively by tapered sleeve.
Described worktable is provided with protective cover.
Truck hub checking cylinder sealing property provided by the invention is test bed, more directly can carry out the test of checking cylinder sealing property more accurately, employing is furnished with equivalent moment of inertia, the testing table simulating the actual rotation of axle is tested, when energy simulated automotive travels energy, to the braking torque of checking cylinder, rotating speed, piston displacement, checking cylinder temperature is measured, and carries out complete detection to braking ability.
Accompanying drawing explanation
Fig. 1 is structure schematic front view of the present invention;
Fig. 2 is side-looking structural representation of the present invention;
Fig. 3 is partial enlargement structural representation of the present invention;
Fig. 4 is plan structure schematic diagram of the present invention.
Embodiment
Accompanying drawings the specific embodiment of the present invention, as shown in Figure 1, truck hub checking cylinder sealing property is test bed, comprises worktable 1, worktable 1 is provided with brake mount 2, also comprises the front diaphragm shaft coupling 4, rotary speed torque sensor 6, the rear film shaft coupling 8 that connect successively; Rotary speed torque sensor 6, rear film shaft coupling 8 are fixed on worktable 1 respectively by sensor stand 5 and coupling support stand 7; The braking cylinder barrel 25 of detent 3 is arranged in brake mount 2, and the rotating part stretched out of detent 3 connects front diaphragm shaft coupling 4;
Rear film shaft coupling 8 other end is connected with flywheel shaft 9, and flywheel 10 is arranged on flywheel shaft 9; Flywheel shaft 9 two ends are fixed on worktable 1 respectively by bearing 11 and bearing base 13;
As shown in Figure 2 and Figure 4, flywheel shaft 9 axle head connects synchronous driven pulley 12, and synchronous driven pulley 12 is connected with synchronous driving pulley 18 by Timing Belt 15, also comprises the adjustable stretching pulley 16 to Timing Belt 15 tension; Synchronous driving pulley 18 is arranged on the output shaft of speed reduction unit 20, and speed reduction unit 20 input shaft is connected with drive motor 22 by motor diaphragm coupling 21, and speed reduction unit 20 and drive motor 22 are separately fixed on worktable 1;
As shown in Figure 3, described detent 3 checking cylinder comprises braking cylinder barrel 25, friction disc 26, piston 27, is provided with displacement transducer 23 at the inwall that contacts with piston 27 of braking cylinder barrel 25, is used for the displacement of measurement piston 27; With friction disc 26 touching position, temperature sensor 24 is installed at braking cylinder barrel 25, is used for measuring friction disc 26 frictional heat situation;
Described detent 3 is also connected with solenoid valve, and solenoid valve is connected with gas path pipe, and gas path pipe is provided with pressure transducer.
Described flywheel 10, synchronous driven pulley 12, synchronous driving pulley 18 connect with corresponding axle respectively by tapered sleeve 19.
As shown in Figure 4, described worktable 1 is provided with protective cover 14.
When testing, Frequency Converter Control drive motor 22 starts, and drive motor 22 is connected with speed reduction unit 20 by motor diaphragm coupling 21, and the reduction gear ratio of reductor is 3:1, the rated speed of drive motor 22 can be reduced near the rotating speed required for test.Drive motor 22 drives flywheel 10 by Timing Belt 15, and detent 3 rotates together with flywheel 10, and the ratio of gear of Timing Belt is 1:1, because testing table moment of inertia is large, therefore carries out soft starting mode with frequency converter to motor.
By the time flywheel shaft 9 accelerates to the required rotating speed of test, and drive motor 22 power-off, the solenoid valve of detent 3 is opened, and starts to brake, until rotating speed reduces to zero.The displacement of piston 27 in the checking cylinder that the moment of torsion of detent measured at this process medium speed torque sensor 6 and the change of the rotating speed of axle, displacement transducer 23 are measured, temperature near the friction disc 26 measured by temperature sensor 24.
After stopping, being equivalent to complete a braking period.Motor is restarted, recirculated work, and after by the time repeatedly circulating, then observe moment of torsion, the piston displacement of detent, the speed of rotation speed change, the data such as intensification, as the index judging detent sealing property.
By simulator stand braking procedure real-time monitored, detent can be observed more intuitively and objectively brake performance, and then the reliability of checking O-ring seal; By repeatedly circulating and can carrying out durability test to O-ring seal, the data obtained can as the reference data of O-ring seal life prediction.
Claims (3)
1. truck hub checking cylinder sealing property is test bed, it is characterized in that: comprise worktable (1), worktable (1) is provided with brake mount (2), also comprises the front diaphragm shaft coupling (4), rotary speed torque sensor (6), the rear film shaft coupling (8) that connect successively; Rotary speed torque sensor (6), rear film shaft coupling (8) are fixed on worktable (1) respectively by sensor stand (5) and coupling support stand (7); The braking cylinder barrel (25) of detent (3) is arranged in brake mount (2), and the rotating part stretched out of detent (3) connects front diaphragm shaft coupling (4);
Rear film shaft coupling (8) other end is connected with flywheel shaft (9), and flywheel (10) is arranged on flywheel shaft (9); Flywheel shaft (9) two ends are fixed on worktable (1) respectively by bearing (11) and bearing base 13;
Flywheel shaft (9) axle head connects synchronous driven pulley (12), synchronous driven pulley (12) is connected with synchronous driving pulley (18) by Timing Belt (15), also comprises the adjustable stretching pulley (16) Timing Belt (15) being played to tension; Synchronous driving pulley (18) is arranged on the output shaft of speed reduction unit (20), speed reduction unit (20) input shaft is connected with drive motor (22) by motor diaphragm coupling (21), and speed reduction unit (20) and drive motor (22) are separately fixed on worktable (1);
Described detent (3) checking cylinder comprises braking cylinder barrel (25), friction disc (26), piston (27), at braking cylinder barrel (25) inwall that contacts with piston (27), displacement transducer (23) is installed, is used for the displacement of measurement piston (27); At braking cylinder barrel (25) and friction disc (26) touching position, temperature sensor (24) is installed, is used for measuring friction disc (26) frictional heat situation;
Described detent (3) is also connected with solenoid valve, and solenoid valve is connected with gas path pipe, and gas path pipe is provided with pressure transducer.
2. truck hub checking cylinder sealing property according to claim 1 is test bed, it is characterized in that: described flywheel (10), synchronous driven pulley (12), synchronous driving pulley (18) connect with corresponding axle respectively by tapered sleeve (19).
3. truck hub checking cylinder sealing property according to claim 1 and 2 is test bed, it is characterized in that: described worktable (1) is provided with protective cover (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791037.0A CN104458131A (en) | 2014-12-18 | 2014-12-18 | Sealing performance testing bed for hub brake cylinder of freight car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791037.0A CN104458131A (en) | 2014-12-18 | 2014-12-18 | Sealing performance testing bed for hub brake cylinder of freight car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104458131A true CN104458131A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410791037.0A Pending CN104458131A (en) | 2014-12-18 | 2014-12-18 | Sealing performance testing bed for hub brake cylinder of freight car |
Country Status (1)
| Country | Link |
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| CN (1) | CN104458131A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897405A (en) * | 2015-06-24 | 2015-09-09 | 无锡市朗迪测控技术有限公司 | Starter simulation torsional vibration test stand |
| CN107314863A (en) * | 2017-08-15 | 2017-11-03 | 杭州沃镭智能科技股份有限公司 | EPB brake caliper motor performance detection means and detection method |
| CN109632288A (en) * | 2019-01-11 | 2019-04-16 | 沈阳工业大学 | Divide the experimental provision of chamber pressure detection sealing performance |
| CN114893516A (en) * | 2022-03-09 | 2022-08-12 | 中信重工机械股份有限公司 | Auxiliary brake device for large horizontal converter body |
Citations (5)
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| JPH0694553A (en) * | 1992-09-11 | 1994-04-05 | Meidensha Corp | Brake tester |
| JPH08297084A (en) * | 1995-04-26 | 1996-11-12 | Mitsubishi Motors Corp | Friction testing machine for drum-brake friction material |
| CN202612442U (en) * | 2012-05-31 | 2012-12-19 | 山西华煤智科机电设备有限公司 | Transmission shaft braking wet type multi-disc brake for drive axle |
| CN103743511A (en) * | 2014-01-27 | 2014-04-23 | 无锡职业技术学院 | Device for testing torque of dry friction clutch |
| CN103983436A (en) * | 2013-02-07 | 2014-08-13 | 重庆长安汽车股份有限公司 | Brake friction, heating and vibration coupling test table |
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2014
- 2014-12-18 CN CN201410791037.0A patent/CN104458131A/en active Pending
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| JPH0694553A (en) * | 1992-09-11 | 1994-04-05 | Meidensha Corp | Brake tester |
| JPH08297084A (en) * | 1995-04-26 | 1996-11-12 | Mitsubishi Motors Corp | Friction testing machine for drum-brake friction material |
| CN202612442U (en) * | 2012-05-31 | 2012-12-19 | 山西华煤智科机电设备有限公司 | Transmission shaft braking wet type multi-disc brake for drive axle |
| CN103983436A (en) * | 2013-02-07 | 2014-08-13 | 重庆长安汽车股份有限公司 | Brake friction, heating and vibration coupling test table |
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| 孙冬野等: "湿式多片制动器纸基摩擦材料摩擦特性试验研究", 《农业工程学报》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897405A (en) * | 2015-06-24 | 2015-09-09 | 无锡市朗迪测控技术有限公司 | Starter simulation torsional vibration test stand |
| CN107314863A (en) * | 2017-08-15 | 2017-11-03 | 杭州沃镭智能科技股份有限公司 | EPB brake caliper motor performance detection means and detection method |
| CN109632288A (en) * | 2019-01-11 | 2019-04-16 | 沈阳工业大学 | Divide the experimental provision of chamber pressure detection sealing performance |
| CN109632288B (en) * | 2019-01-11 | 2024-02-27 | 沈阳工业大学 | Experimental device for divide chamber to exert pressure and detect sealing performance |
| CN114893516A (en) * | 2022-03-09 | 2022-08-12 | 中信重工机械股份有限公司 | Auxiliary brake device for large horizontal converter body |
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| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20180323 |