CN103115763B - Automobile brake master cylinder performance testing device - Google Patents
Automobile brake master cylinder performance testing device Download PDFInfo
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- CN103115763B CN103115763B CN201310023568.0A CN201310023568A CN103115763B CN 103115763 B CN103115763 B CN 103115763B CN 201310023568 A CN201310023568 A CN 201310023568A CN 103115763 B CN103115763 B CN 103115763B
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Abstract
The invention discloses an automobile brake master cylinder performance testing device which comprises a vacuum testing subsystem, a pneumatic testing subsystem, a hydraulic testing subsystem and a cylinder loading assembly. The vacuum testing subsystem comprises a vacuum source, a first electric proportional valve, a first magnetic valve and a vacuum sensor. The pneumatic testing subsystem comprises an air source, a filter, an air storage tank, a second electric proportional valve, a second magnetic valve and an air pressure sensor. The hydraulic testing subsystem comprises a discharge volume measurement container, a hydraulic zero leakage valve, an artificial load and a hydraulic sensor. The cylinder loading assembly comprises a cylinder, a cylinder mounting plate, a force sensor, a cylinder support, a supporting rod, a workpiece mounting plate, an ejector head, an adjusting nut, a push rod, a linear bearing and a bearing mounting plate. According to the automobile brake master cylinder performance testing device, the sealing performance, the initial pressure-building journey, the non-load return time, the output function, the master cylinder discharge volume and the pressure difference performance of a brake master cylinder can be detected, and test projects are complete.
Description
Technical field
The present invention relates to a kind of brake system of car parts proving installation, be specifically related to a kind of master cylinder for brake fluid system performance test bed.
Background technology
Brake fluid system has been widely used in the middle of small and medium-sized car, it be the car deceleration for running at high speed or stop designed, thereby ride safety of automobile is played to vital effect.Master cylinder is a vitals of brake fluid system, the brake pedal force that it steps on the driver who amplifies through vacuum booster and conduct, utilize the principle incompressible, hydraulic energy reinforcement of liquid that power is transformed into hydraulic pressure, thereby and be delivered to by brake piping the braking effect that each wheel cylinder generation allows car deceleration or stops.As can be seen here, automobile braking master cylinder is the core component in hydraulic braking system for automobile, and the quality of its performance has directly affected the braking effect of automobile, to being detected as for one of indispensable automobile test project of automobile braking master cylinder performance.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, the proving installation of a set of detection automobile hydraulic brake master performance is provided, this device has the function that detects master cylinder pressurized seal, vacuum leakproofness, hydraulic seal and hydraulic characteristic.
The technical scheme that technical solution problem of the present invention is taked:
Automobile master cylinder performance testing device, comprises vacuum test subsystem, air pressure test subsystems, hydraulic test subsystem and cylinder charging assembly.
Described vacuum test subsystem comprises vacuum source, the first electric Proportion valve, the first solenoid valve and vacuum transducer.The first electric Proportion valve input end is connected with vacuum source output terminal, and the first solenoid valve input end is connected with the first electric Proportion valve output terminal, and the first solenoid valve output terminal is connected with tested master cylinder outage, and vacuum transducer is measured the vacuum values in cylinder body.
Described air pressure test subsystems comprises source of the gas, filtrator, gas-holder, the second electric Proportion valve, the second solenoid valve and baroceptor.Source of the gas delivery outlet is connected with filtrator input end, gas-holder input end is connected with filtrator output terminal, gas-holder output terminal is connected with the second electric Proportion valve input end, the second solenoid valve input end is connected with the second electric Proportion valve output terminal, the second solenoid valve gas outlet is connected with tested master cylinder outage, and baroceptor is measured the atmospheric pressure value in cylinder body.
Described hydraulic test subsystem comprises discharge capacity measuring vessel, hydraulic pressure zero-leakage valve, fictitious load and hydraulic pressure transducer.Discharge capacity measuring vessel is connected with hydraulic pressure zero-leakage valve output terminal, and fictitious load output terminal is connected with hydraulic pressure zero-leakage valve input end, and fictitious load input end is connected with tested master cylinder outage, and hydraulic pressure transducer is measured the hydraulic pressure value of outage output.
Described cylinder charging assembly comprises cylinder, cylinder mounting plate, power sensor, air cylinder support, support bar, workpiece mounting plate, top, setting nut, push rod, linear bearing and bearing installing plate.The front end of cylinder is cylinder connector, and cylinder connector is connected with one end of push rod, and the other end of push rod is connected with top by setting nut, is provided with for gathering the power sensor of cylinder output pressure value in the junction of joint and push rod; On bearing installing plate, linear bearing is housed, push rod is nested in linear bearing; Bearing installing plate below is fixed with air cylinder support; Between bearing installing plate and cylinder mounting plate, be fixed with support bar, between bearing installing plate and workpiece mounting plate, be also fixed with support bar; Described workpiece mounting plate is responsible for tested master cylinder to be fixed on and to load on stand; Described cylinder mounting plate is for positioning cylinder.
Beneficial effect of the present invention: 1) can detect the sealing property of master cylinder, just establish and press stroke, non-loaded return interval, output function, master cylinder discharge capacity and pressure reduction performance, test event is comprehensive; 2) accuracy of detection is high; 3), compared to manual work, greatly improved detection efficiency.
Accompanying drawing explanation
Shown in Fig. 1 is structural representation of the present invention.
Shown in Fig. 2 is the planar side view of cylinder charging assembly in the embodiment of the present invention;
Shown in Fig. 3 is the planar elevation view of cylinder charging assembly in the embodiment of the present invention.
Embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, for automobile braking master cylinder performance testing device, comprise cylinder charging assembly 1, fluid reservoir 2, tested master cylinder 3, vacuum transducer 4, vacuum solenoid 5, vacuum electric Proportion valve 6, vacuum source 7, source of the gas 8, filtrator 9, gas-holder 10, electric Proportion valve 11, solenoid valve 12, baroceptor 13, hydraulic pressure transducer 14, fictitious load 15, hydraulic pressure zero-leakage valve 16, discharge capacity measuring vessel 17, tested master cylinder 18, workpiece mounting plate 19, top 20, setting nut 21, push rod 22, installing plate 23, hexagon socket cap head screw 24, cylinder 25, cylinder connector 26, power sensor 27, air cylinder support 28, linear bearing 29, the second support bar 30, the first support bar 31, cylinder mounting plate 32.
As shown in Figure 1, for tested master cylinder provides the push rod of cylinder charging assembly 1 of loading force and the first piston of tested master cylinder 3, interconnect, the feed flow hole of the leakage fluid dram of fluid reservoir 2 and tested master cylinder 3 interconnects; In vacuum test subsystem, the input end of electric Proportion valve 6 is connected with the output terminal of vacuum source 7, the input end of solenoid valve 5 is connected with the output terminal of electric Proportion valve 6, the outage of the output terminal of solenoid valve 5 and tested master cylinder 3 interconnects, and vacuum transducer 4 is used for measuring the vacuum values in cylinder body; In air pressure test subsystems, the delivery outlet of source of the gas 8 is connected with the input end of filtrator 9, the input end of gas-holder 10 is connected with the output terminal of filtrator 9, the output terminal of cylinder 10 is connected with the input end of electric Proportion valve 11, the input end of solenoid valve 12 is connected with the output terminal of electric Proportion valve 11, the gas outlet of solenoid valve 12 is connected with the outage of tested master cylinder 3, the atmospheric pressure value that baroceptor 13 is measured in cylinder body; In hydraulic test subsystem, discharge capacity measuring vessel 17 is connected with the output terminal of hydraulic pressure zero-leakage valve 16, the output terminal of fictitious load 15 is connected with the input end of hydraulic pressure zero-leakage valve 16, the input end of fictitious load 15 is connected with the outage of tested master cylinder 3, and hydraulic pressure transducer 14 is measured the hydraulic pressure value of outage output.
As shown in Figures 2 and 3, tested master cylinder 18(is the tested master cylinder 3 in Fig. 1) be fixedly mounted on workpiece mounting plate 19, between workpiece mounting plate 19 and installing plate 23, by the second support bar 30, be connected, and utilize 24 pairs of the second support bars 30 of hexagon socket cap head screw to reinforce with workpiece mounting plate 19, installing plate 23 junctions; Top 20 is installed in tested master cylinder 18 first pistons, between push rod 22 and top 20, setting nut 21 is installed, setting nut 21 can be fixed together push rod 22 and top 20; Linear bearing 29 is housed on installing plate 23, and push rod 22 has been realized round easy motion in the middle of being nested in linear bearing 29; Cylinder 25 is fixed on cylinder mounting plate 32 by hexagon socket cap head screw 24, between cylinder mounting plate 32 and installing plate 23, by the first support bar 31, is connected; Strong sensor 27 is installed between cylinder connector 26 and push rod 22, and power sensor 27 is used for measuring the Output pressure of cylinder 25; Air cylinder support 28 is fixedly connected with installing plate 23, and air cylinder support 28 makes the motion work stably of whole cylinder charger.
As shown in Figure 1, label is that 4-7 part can complete the test of vacuum seal performance.Measured piece is fixedly mounted on testboard bay, close measured piece feed flow hole, two outages and vacuum solenoid 5 interconnect, cylinder charging assembly 1 promotes measured piece piston to the pressure travel position of just establishing, open vacuum source 7, by regulating vacuum electric Proportion valve 6 to carry out the vacuum values of control system input, opening 5 pairs of measured pieces of vacuum solenoid vacuumizes, vacuum values in vacuum transducer 4 Real-Time Monitoring cylinder bodies, when the required vacuum values of the system that reaches, close vacuum solenoid 5, the vacuum pressure rising value that vacuum transducer 4 is measured in cylinder body, complete the vacuum seal performance test of measured piece.
As shown in Figure 1, label is that 8-13 part can complete pressurized seal performance test.Measured piece is fixedly mounted on testboard bay, close measured piece feed flow hole, two outages are connected with solenoid valve 12, cylinder charging assembly 1 promotes measured piece piston to the pressure travel position of just establishing, opening source of the gas 8 inflates to gas-holder 10, 9 pairs of input gases of filtrator filter, by regulating electric Proportion valve 11 to carry out control system input air pressure value, solenoid valve 12 is opened to measured piece input test air pressure, baroceptor 13 Real-Time Monitoring input air pressure values, when arriving the atmospheric pressure value of test request, shut electromagnetic valve 12, baroceptor is measured the air pressure drop-out value in cylinder body.
As shown in Figure 1, label is that 14-17 part can complete hydraulic performance test.Measured piece is fixedly mounted on testboard bay, measured piece outage and fictitious load 15 are interconnected, feed flow hole is opened to measured piece and is injected working fluid, open fictitious load 15, close hydraulic pressure zero-leakage valve 16, cylinder charging assembly 1 promotes measured piece piston movement, and hydraulic pressure transducer 14 is measured measured piece output hydraulic pressure value, completes pressure reduction performance test, just establishes and press stroke test and output function test; Cylinder charging assembly 1 promotes tested piston movement to maximum travel position, opens hydraulic pressure zero-leakage valve 16, and working fluid flows in the middle of discharge capacity measuring vessel 17 by pipeline, reads scale value the record of discharge capacity measuring vessel 17, completes discharge capacity test; Charging assembly 1 promotes measured piece piston movement to maximum travel position, closes fictitious load 15, cancels rapidly cylinder loading force, measures first piston time of reposition completely under without any External Force Acting, completes and tests non-loaded return interval.
If staff finds that there is abnormal conditions, can press emergency stop switch, by electric wiring, control power cut-off, disconnect vacuum solenoid 5, solenoid valve 12, close fictitious load 15, cylinder 25 discharges rapidly air pressure and makes push rod 22 return fast original position.Avoid the contingent event that personnel and device itself are damaged to some extent, ensure the safety of personal property.
Finally, it is pointed out that above what enumerate is a specific embodiment of the present invention, obviously, the invention is not restricted to this specific embodiment.All distortion that those skilled in the art directly derive or associate from content disclosed by the invention, all within protection scope of the present invention.
Claims (1)
1. automobile master cylinder performance testing device, comprises vacuum test subsystem, air pressure test subsystems, hydraulic test subsystem and cylinder charging assembly, and its characteristic is:
Described vacuum test subsystem comprises vacuum source, the first electric Proportion valve, the first solenoid valve and vacuum transducer; The first electric Proportion valve input end is connected with vacuum source output terminal, and the first solenoid valve input end is connected with the first electric Proportion valve output terminal, and the first solenoid valve output terminal is connected with tested master cylinder outage, and vacuum transducer is measured the vacuum values in cylinder body;
Described air pressure test subsystems comprises source of the gas, filtrator, gas-holder, the second electric Proportion valve, the second solenoid valve and baroceptor; Source of the gas delivery outlet is connected with filtrator input end, gas-holder input end is connected with filtrator output terminal, gas-holder output terminal is connected with the second electric Proportion valve input end, the second solenoid valve input end is connected with the second electric Proportion valve output terminal, the second solenoid valve gas outlet is connected with tested master cylinder outage, and baroceptor is measured the atmospheric pressure value in cylinder body;
Described hydraulic test subsystem comprises discharge capacity measuring vessel, hydraulic pressure zero-leakage valve, fictitious load and hydraulic pressure transducer; Discharge capacity measuring vessel is connected with hydraulic pressure zero-leakage valve output terminal, and fictitious load output terminal is connected with hydraulic pressure zero-leakage valve input end, and fictitious load input end is connected with tested master cylinder outage, and hydraulic pressure transducer is measured the hydraulic pressure value of outage output;
Described cylinder charging assembly comprises cylinder, cylinder mounting plate, power sensor, air cylinder support, support bar, workpiece mounting plate, top, setting nut, push rod, linear bearing and bearing installing plate; The front end of cylinder is cylinder connector, and cylinder connector is connected with one end of push rod, and the other end of push rod is connected with top by setting nut, is provided with for gathering the power sensor of cylinder output pressure value in the junction of cylinder connector and push rod; On bearing installing plate, linear bearing is housed, push rod is nested in linear bearing; Bearing installing plate below is fixed with air cylinder support; Between bearing installing plate and cylinder mounting plate, be fixed with support bar, between bearing installing plate and workpiece mounting plate, be also fixed with support bar; Described workpiece mounting plate is responsible for tested master cylinder to be fixed on and to load on stand; Described cylinder mounting plate is for positioning cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310023568.0A CN103115763B (en) | 2013-01-22 | 2013-01-22 | Automobile brake master cylinder performance testing device |
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| CN201310023568.0A CN103115763B (en) | 2013-01-22 | 2013-01-22 | Automobile brake master cylinder performance testing device |
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| CN103115763A CN103115763A (en) | 2013-05-22 |
| CN103115763B true CN103115763B (en) | 2014-12-17 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411770B (en) * | 2013-08-23 | 2016-06-01 | 中国计量学院 | A kind of automobile brake master cylinder Performance Test System and method |
| CN103575483B (en) * | 2013-10-17 | 2016-09-14 | 杭州沃镭科技有限公司 | The detection method of hand brake valve on-line performance Detecting data control system |
| CN104089783B (en) * | 2014-06-27 | 2016-08-24 | 杭州沃镭智能科技股份有限公司 | A kind of test device of wedge shape braking dilator assembly |
| CN107023536B (en) * | 2017-04-20 | 2018-02-23 | 中南大学 | Engineering machinery hydraulic cylinder dynamic performance integrated test platform |
| CN107676334A (en) * | 2017-09-08 | 2018-02-09 | 陕西飞机工业（集团）有限公司 | A kind of Electric hydraulic pressure servo valve test equipment |
| CN108458842B (en) * | 2018-04-11 | 2023-09-29 | 上汽大众汽车有限公司 | Off-line test system and test method for servo cylinder |
| CN112985804A (en) * | 2019-12-02 | 2021-06-18 | 东风（十堰）汽车液压动力有限公司 | Air pressure test bed for comprehensive performance of brake master cylinder and test method thereof |
| CN112196842B (en) * | 2020-10-10 | 2021-11-02 | 清华大学 | Hydraulic loading safety protection device and vehicle loading test system and method |
| CN112985840A (en) * | 2021-04-22 | 2021-06-18 | 山东豪驰智能汽车有限公司 | Brake master cylinder vacuum booster performance test method |
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Owner name: HANGZHOU WOZHI INTELLIGENT TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HANGZHOU WOLEI TECHNOLOGY CO., LTD. |
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Address after: 310019, room 112, West 25, building 9, nine Sheng Road, Hangzhou, Zhejiang, Jianggan District, China Patentee after: Radium intelligence Science and Technology Co., Ltd. is irrigated in Hangzhou Address before: 310019, room 112, West 25, building 9, nine Sheng Road, Hangzhou, Zhejiang, Jianggan District, China Patentee before: Hangzhou Wolei Technology Co.,Ltd. |