CN201680974U - Device for testing parking brake control lever - Google Patents
Device for testing parking brake control lever Download PDFInfo
- Publication number
- CN201680974U CN201680974U CN2010201898404U CN201020189840U CN201680974U CN 201680974 U CN201680974 U CN 201680974U CN 2010201898404 U CN2010201898404 U CN 2010201898404U CN 201020189840 U CN201020189840 U CN 201020189840U CN 201680974 U CN201680974 U CN 201680974U
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- CN
- China
- Prior art keywords
- parking brake
- master cylinder
- air cylinder
- control lever
- solenoid valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model relates to a device for testing a parking brake control lever. The device comprises a control lever push-up device, a spring button press device and a measurement and control system, wherein the control lever push-up device comprises a master air cylinder with the middle part hinged on a base; a piston shaft of the master air cylinder is serially connected with a drawing force and compression force sensor, and is connected with the control lever through a clamp splice; a linear displacement sensor parallel to the outer side of the master air cylinder and is in synchronous linkage with the piston shaft; the spring button press device adopts the manner that a pressure sensor is serially connected at the top end of a piston shaft of a small air cylinder; the master air cylinder and the small air cylinder are controlled through a pneumatic system; and a displacement sensor and a force sensor are communicated with the measurement and control system. The utility model adopts the air cylinders to realize reciprocating movement, controls the speed and the acting force through a pneumatic component and the travel through a displacement sensor, and measures the load through the force sensor, thereby having the advantages of reasonable and compact structure, economy, reliability, convenient and flexible parameter setting and rich and accurate test results, and being capable of meeting various related tests of the parking brake control lever.
Description
Technical field
The utility model relates to the vehicle testing technique field, especially the proving installation of automobile parking braking operating rod.
Background technology
Parking brake is the unlikely slippery parking brake of locking automobile when stopping, and generally is to carry out manual operation by the driver by parking brake lever, is commonly called as parking brake.Parking brake is usually by mechanical drive, and the operating rod bottom links to each other with detent, when the pull-up parking brake lever, and traction braking device work locking automobile; The ratchet device of the spring button lever locked bottom of while operating rod head, the position that keeps operating rod; When the needs brake off, must press spring button earlier and remove ratchet lock, then operating rod is pushed back, drive a vehicle again behind the loosen the brake device.
Parking brake is to guarantee the vitals of automobile parking safety, therefore need guarantee its quality and reliability when design and manufacturing.Main test event for parking brake lever comprises reliability of service life test and overload test at present, the standard difference of difference automobile production manufacturer, as shown in table 1, project kind is many, the controlled variable setting is more loaded down with trivial details and multiplicity is many, normally rely on artificial at present or testing apparatus is tested: adopt the manual testing can simulate actual operating position preferably, but take time and effort, be difficult for control load accurately; Adopt testing apparatus accurately control load and speed, but present testing apparatus is simple in structure, automaticity is low, can only be used for independent test event, especially be difficult to realize the interlock of spring button and operating rod, therefore can't effectively finish the relevant whole tests of parking brake lever automatically.
Table 1: parking brake lever test event
The utility model content
The applicant is simple at the testing apparatus of above-mentioned existing parking brake lever, can't finish shortcomings such as dependence test comprehensively, a kind of simple in structure, easy to operate testing device for parking brake lever is provided, can be provided with flexibly according to different test requests, thereby can finish every dependence test efficiently.
The technical scheme that the utility model adopted is as follows:
A kind of testing device for parking brake lever is made of operating rod pressure-raising device, spring button press device, TT﹠C system; Operating rod pressure-raising device comprises that the middle part is articulated in the master cylinder of base, and the axis of the piston and the pull pressure sensor of master cylinder are connected in series, and are connected with operating rod by fixture block, the master cylinder arranged outside have parallel linear displacement transducer and with the axis of the piston synchronous interaction; The spring button press device is the axis of the piston top series connection force transducer of little cylinder; Described master cylinder and described stingy cylinder adopt pneumatic system to control, and described displacement transducer is communicated with TT﹠C system with pull pressure sensor.It is further characterized in that:
Described pneumatic system is provided with the multi-path joint at the endpiece of pneumatic triple piece, the reduction valve of leading up to is connected in the inlet of two-position-five-way solenoid valve, and the direct action of two-position-five-way solenoid valve and reverse action gas outlet are connected to the rodless cavity and the rod chamber of little cylinder by throttling valve; The branch road that other minutes way outlet two-way at least in parallel respectively of multi-path joint is connected in series by reduction valve and solenoid valve, be connected in the inlet of 3 position-5 way solenoid valve after each branch road gathers, the gas outlet of 3 position-5 way solenoid valve is connected to the rodless cavity and the rod chamber of master cylinder by throttling valve;
Described linear displacement transducer is a resistance scale;
Described fixture block is connected with the axis of the piston of described master cylinder with connecting rod by oscillating bearing;
Described spring button press device is connected in the fixture block of described operating rod pressure-raising device by securing member.
The utility model adopts cylinder to realize to-and-fro movement, by pneumatic components and parts control rate and acting force, by displacement transducer control stroke, by force sensor measuring load, compact conformation is reasonable, and economic and reliable can satisfy relevant every test of parking brake lever fully, it is convenient, flexible that parameter is set, and test result is accurately abundant.The utility model is provided with operating rod pressure-raising device and spring button press device, and by TT﹠C system control pneumatic system, the interlock that has solved spring button and operating rod smoothly.The utility model adopts multiple branch circuit combination in parallel to control air pressure, has avoided selecting for use the pneumatic components and parts and the control system that complexity is set of single costliness, thereby multistage load can cost-effectively be provided.
Description of drawings
Fig. 1 is the front view of the utility model in test mode, the operating rod depressed state;
Fig. 2 is the front view of the utility model in test mode, and operating rod lifts state;
Fig. 3 is a stereographic map of the present utility model;
Fig. 4 is a pneumatic control schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
The primary structure of testing device for parking brake lever described in the utility model such as Fig. 1, Fig. 2 and shown in Figure 3 are made of operating rod pressure-raising device, spring button press device, TT﹠C system.The middle part of the anti-rotation master cylinder 8 of operating rod pressure-raising device is fixed with the lasso 15 that both sides have hinge 9, be provided with the hinged block 16 that matches with hinge 9 on vertical arm top, the both sides of base 10, hinge 9 can rotate in hinged block 16 flexibly, thus master cylinder 8 can be on base 10 be that fulcrum rotates in certain angle with hinge 9.Upside at master cylinder 8 adopts fixed support 7 fixed resistance chis 6, and with master cylinder 8 keeping parallelisms, resistance scale 6 is a kind of linear displacement transducers, can pass through the accurate controlled motion displacement of electric signal.The axis of the piston 5 of cylinder 8 is fixed on triangle contiguous block 4 with the central shaft front end of resistance scale 6, the opposite side of triangle contiguous block 4 is fixed two pull pressure sensor 3, the test end of pull pressure sensor 3 is connected with connecting rod 12, and link rod head is connected with fixture block 17 by the oscillating bearing 18 that central authorities are provided with.The spring button press device is a stingy cylinder 1 fixing on L type support 14, is fixed with miniature pull pressure sensor 2 on the axis of the piston top of stingy cylinder 1.Master cylinder 8 adopts pneumatic system to control with stingy cylinder 1, and resistance scale 6 is communicated with TT﹠C system by lead with miniature pull pressure sensor 2.
Pneumatic schematic diagram of the present utility model as shown in Figure 4, by rapid-acting coupling 101 the inside and outside gas circuit is communicated, pressurized air is at first by pneumatic triple piece 102, pneumatic triple piece 102 comprises air strainer, reduction valve, oil sprayer, it mainly acts on is the general pressure of adjusting in the gas circuit, filters the airborne mist of oil of compression simultaneously; Endpiece at pneumatic triple piece 102 is provided with five-way joint 103, the reduction valve 104 of leading up to is connected in the inlet of two-position-five-way solenoid valve 105, the direct action venthole of two-position-five-way solenoid valve 105 is connected in the rodless cavity of stingy cylinder 1 by throttling valve 106, and the reverse action venthole is connected in the rod chamber of stingy cylinder 1 by throttling valve 106.The branch road that other three way outlets of five-way joint 103 three route reduction valve 104 in parallel respectively and normally closed solenoid valve 109 are connected in series, three road branch roads gather and are connected in the inlet of 3 position-5 way solenoid valve 107 at four-way 108, the direct action venthole of 3 position-5 way solenoid valve 107 is connected in the rodless cavity of master cylinder 8 by throttling valve 106, and the reverse action venthole is connected in the rod chamber of master cylinder 8 by throttling valve 106.
During actual the test, fixture block 17 is clamped in the top of parking brake lever 11, the spring button press device is arranged on the top of parking brake lever 11, miniature pull pressure sensor 2 test leads contact on the spring button 13 of parking brake lever 11 heads, and it is fixing to pass L type support 14 runway grooves and fixture block 17 by securing members such as screws; Base 10 is fixed on the back seat of test fixture or car load.Start TT﹠C system, on the control interface parameters such as load, stroke, cycle index and speed are set, then testing device for parking brake lever can full automaticly be tested.TT﹠C system makes up by the switching of the solenoid valve 109 on three branch roads of control, thereby inputs to the air-flow of 3 position-5 way solenoid valve 107 different pressures, in order to satisfy different control lever Tensile or Compressive Loading requirements.By the loaded load of miniature pull pressure sensor 2 measurements to spring button 13.By the displacement stroke of resistance scale 6 is set, can satisfy the stroke needs of different test necessary operations bar tension and compression flexibly.Switch by control two-position-five-way solenoid valve 105 and 3 position-5 way solenoid valve 107 different paths, can control the axis of the piston expanding-contracting action of stingy cylinder 1 and master cylinder 8; By regulating throttling valve 106, can be by regulating the movement velocity that the air-flow size is come the control cylinder piston.Can the Control Circulation number of times by counter.TT﹠C system of the present utility model can be by pull pressure sensor 3 and miniature pull pressure sensor 2, the pressure data of measuring and gathering operating rod and spring button in real time, and the line data of going forward side by side is handled, and draws real-time curve or counting statistics value.
The utility model can satisfy the various relevant tests of testing device for parking brake lever by parameter setting flexibly.With first test event shown in the table 1 is example, open the solenoid valve 109 of first branch road, second branch road by TT﹠C system, first branch road can provide the air pressure of 0.1MP, second branch road can provide the air pressure of 0.4MP, the two-way air-flow gathers to 3 position-5 way solenoid valve 107, can satisfy the pulling force requirement of 400N.The displacement that TT﹠C system is provided with resistance scale 6 is needed 135mm; Counter is set to 100000 times; By regulating throttling valve 106 to satisfy 5 seconds/round-robin rate request.After starting test, the axis of the piston 5 of master cylinder 8 shrinks, and pull-up operating rod 11 is to the extreme higher position and stop, this moment state as shown in Figure 2.Stingy cylinder 1 starts, and spring button 13 is pressed, and removes ratchet lock; The axis of the piston 5 elongations of master cylinder 8 are depressed operating rod 11 to extreme lower position then, and this moment, stingy cylinder 1 resetted, and releasing spring button 13 also locks ratchet, and state as shown in Figure 1 at this moment.Pull pressure sensor 3 is gathered the pressure data of measuring operating rod and spring button in real time with miniature pull pressure sensor 2 in this cyclic process.
More than describing is to explanation of the present utility model, it or not qualification to utility model, the utility model institute restricted portion is referring to claim, under the situation of spirit of the present utility model, the utility model can be done any type of modification, for example adopt similar components and parts to do simple the replacement, realize the course of action identical with the utility model; Perhaps the branch road more than the two-way at least is set, provides different air pressure in order to control at 3 position-5 way solenoid valve leading portion.
Claims (5)
1. a testing device for parking brake lever is characterized in that: be made of operating rod pressure-raising device, spring button press device, TT﹠C system; Operating rod pressure-raising device comprises that the middle part is articulated in the master cylinder of base, and the axis of the piston and the pull pressure sensor of master cylinder are connected in series, and are connected with operating rod by fixture block, the master cylinder arranged outside have parallel linear displacement transducer and with the axis of the piston synchronous interaction; The spring button press device is the axis of the piston top series connection force transducer of little cylinder; Described master cylinder and described stingy cylinder adopt pneumatic system to control, and described displacement transducer is communicated with TT﹠C system with pull pressure sensor.
2. testing device for parking brake lever as claimed in claim 1, it is characterized in that: described pneumatic system is provided with the multi-path joint at the endpiece of pneumatic triple piece, the reduction valve of leading up to is connected in the inlet of two-position-five-way solenoid valve, and the direct action of two-position-five-way solenoid valve and reverse action gas outlet are connected to the rodless cavity and the rod chamber of little cylinder by throttling valve; The branch road that other minutes way outlet two-way at least in parallel respectively of multi-path joint is connected in series by reduction valve and solenoid valve, be connected in the inlet of 3 position-5 way solenoid valve after each branch road gathers, the gas outlet of 3 position-5 way solenoid valve is connected to the rodless cavity and the rod chamber of master cylinder by throttling valve.
3. testing device for parking brake lever as claimed in claim 1 is characterized in that: described linear displacement transducer is a resistance scale.
4. testing device for parking brake lever as claimed in claim 1 is characterized in that: described fixture block is connected with the axis of the piston of described master cylinder with connecting rod by oscillating bearing.
5. testing device for parking brake lever as claimed in claim 1 is characterized in that: described spring button press device is connected in the fixture block of described operating rod pressure-raising device by securing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201898404U CN201680974U (en) | 2010-05-14 | 2010-05-14 | Device for testing parking brake control lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201898404U CN201680974U (en) | 2010-05-14 | 2010-05-14 | Device for testing parking brake control lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680974U true CN201680974U (en) | 2010-12-22 |
Family
ID=43346014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201898404U Expired - Lifetime CN201680974U (en) | 2010-05-14 | 2010-05-14 | Device for testing parking brake control lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680974U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603832A (en) * | 2013-10-30 | 2014-02-26 | 无锡市海航电液伺服系统有限公司 | Hydraulic substation oil circuit system |
| CN105606373A (en) * | 2016-02-26 | 2016-05-25 | 安徽农业大学 | Parking performance test device for passenger car on rotating hub test stand and application thereof |
| CN109084989A (en) * | 2018-06-29 | 2018-12-25 | 合肥和安机械制造有限公司 | A kind of fork truck parking braking assembly testing bench frame |
-
2010
- 2010-05-14 CN CN2010201898404U patent/CN201680974U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603832A (en) * | 2013-10-30 | 2014-02-26 | 无锡市海航电液伺服系统有限公司 | Hydraulic substation oil circuit system |
| CN103603832B (en) * | 2013-10-30 | 2017-12-29 | 无锡市海航电液伺服系统有限公司 | A kind of hydraulic substation oil circuit system |
| CN105606373A (en) * | 2016-02-26 | 2016-05-25 | 安徽农业大学 | Parking performance test device for passenger car on rotating hub test stand and application thereof |
| CN105606373B (en) * | 2016-02-26 | 2017-12-22 | 安徽农业大学 | Passenger car parking performance testing device and its application on a kind of revolving drum test table |
| CN109084989A (en) * | 2018-06-29 | 2018-12-25 | 合肥和安机械制造有限公司 | A kind of fork truck parking braking assembly testing bench frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101222 Effective date of abandoning: 20110720 |