CN105730506A - Oil leakage detecting device for hydraulic cylinder end of gear-rack hydraulic steering gear - Google Patents
Oil leakage detecting device for hydraulic cylinder end of gear-rack hydraulic steering gear Download PDFInfo
- Publication number
- CN105730506A CN105730506A CN201610170544.1A CN201610170544A CN105730506A CN 105730506 A CN105730506 A CN 105730506A CN 201610170544 A CN201610170544 A CN 201610170544A CN 105730506 A CN105730506 A CN 105730506A
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- China
- Prior art keywords
- rack
- detecting device
- sleeve
- gear
- oil leakage
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
- Actuator (AREA)
Abstract
The invention discloses an oil leakage detecting device for the hydraulic cylinder end of a gear-rack hydraulic steering gear. The oil leakage detecting device comprises a test bed, a rack and an inner pull rod ball head located at the outer end of the rack; a piston rod of an oil cylinder fixed to the test bed is opposite to the ball center of the inner pull rod ball head and perpendicular to the rack, the piston rod is connected with a pressure sensor, the inner pull rod ball head is sleeved with a sleeve, and a connecting rod is arranged between the pressure sensor and the sleeve. Threads are arranged at the two ends of the connecting rod and matched with a threaded hole in the pressure sensor and a threaded hole in a sleeve body correspondingly. The oil leakage detecting device has the remarkable advantage of being high in detection efficiency.
Description
Technical field:
The present invention relates to a kind of measurement technology, particularly a kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device.
Background technology:
nullIt is provided with hydraulic cylinder in rack-and-pinion hydraulic steering gear、Support set oil sealing、Tooth bar and multiple Oil sealing assembly such as rack piston and hydraulic cylinder seal，Steering gear work middle rack makes axially reciprocating in hydraulic cylinder，When above-mentioned oil sealing assembles undesirable，Tooth bar and oil cylinder end occur gap radially leakage of oil occur，For this，Steering gear is before dispatching from the factory，Needs are inspected by random samples，The structure of existing detecting device is，One end of pull bar is connected with the draw-in bar of tooth bar termination，The other end of this pull bar is connected with the piston rod of detection oil cylinder，An inclination angle is had between described pull bar and the axis of tooth bar，When pull bar moves back and forth，This inclination angle produces a radial component and acts on tooth bar，When parts each in steering gear and Oil sealing assembly are defective，Will in oil cylinder end generation leakage of oil，Now，This batch of product need to be readjusted and assembled.The defect of this detecting device is, detects a product needed and carries out 24 hours, and efficiency is low.
Summary of the invention:
It is an object of the present invention to provide a kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device that a kind of detection efficiency is high.
Realization the technical scheme is that, a kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device, including testing stand, the draw-in bar bulb of tooth bar and outer end thereof, it is characterized in that: the piston rod of the oil cylinder being fixed on testing stand is relative and perpendicular with tooth bar with the centre of sphere of described draw-in bar bulb, this piston rod is connected with pressure transducer, sleeve is set on described draw-in bar bulb, it is provided with connecting rod between described pressure transducer and sleeve, the two ends of this connecting rod be equipped with screw thread respectively with the screwed hole on pressure transducer and the corresponding threaded holes on sleeve body.
The present invention has the remarkable advantage that detection efficiency is high compared with the prior art.
Accompanying drawing illustrates:
Fig. 1 is the front view of the present invention；Fig. 2 is the top view of Fig. 1；Fig. 3 is the left view of Fig. 1.
Detailed description of the invention:
In order to solve the defect that prior art exists, the structure of the draw-in bar bulb applying radial force of tooth bar outer end is improved, the technical scheme of this improvement is as Figure 1-3, sleeve 2 be slidably located in tooth bar 3 external end head draw-in bar bulb 10 on, the screw thread of cylinder piston rod 9 termination being fixed on testing stand table top 7 and the corresponding threaded holes of pressure transducer 1 body, the screw thread of the front side screwed hole of this pressure sensor body and connecting rod 8 one end matches, the other end of this connecting rod links with described sleeve, as being welded to connect, can also with threaded, now the outer tube wall of sleeve arranges a cylinder, the screwed hole that screw thread with described connecting rod matches is set in this cylinder.Vertical with rack axis in order to ensure that tooth bar is applied pressure by piston rod, piston rod is with connecting rod in a straight line, connecting rod is relative with the centre of sphere of draw-in bar bulb, and the draw-in bar of tooth bar outer end and the bulb of termination, hydraulic cylinder fixing seat 6, tooth bar, oil cylinder 4, power shaft 5 are without modification.
The operation principle of the present invention is, rack-and-pinion hydraulic steering gear mounting seat 6 is fixed on testing stand table top, the outside link bulb making tooth bar outer end is placed in sleeve, operating cyloinder action, radial force is applied through the external tie rod ball of pressure transducer and connecting rod and sleeve by piston rod, the radial force being controlled pressure cylinder applying by pressure transducer reaches setting value, now rack-and-pinion hydraulic steering gear is injected hydraulic oil, observe the whether leakage of oil of oil cylinder termination, in detection process, steering gear rack can move back and forth, it is also possible to static does not move, and testing result is identical.Whole detection process generally only need several minutes just it could be assumed that, substantially increase the efficiency of detection.
Claims (1)
1. a rack-and-pinion hydraulic steering gear cylinder ends leakage detection device, draw-in bar bulb including testing stand, tooth bar and outer end thereof, it is characterized in that: the piston rod of the oil cylinder being fixed on testing stand is relative and perpendicular with tooth bar with the centre of sphere of described draw-in bar bulb, this piston rod is connected with pressure transducer, sleeve is set on described draw-in bar bulb, be provided with connecting rod between described pressure transducer and sleeve, the two ends of this connecting rod be equipped with screw thread respectively with the screwed hole on pressure transducer and the corresponding threaded holes on sleeve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610170544.1A CN105730506B (en) | 2016-03-24 | 2016-03-24 | A kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610170544.1A CN105730506B (en) | 2016-03-24 | 2016-03-24 | A kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105730506A true CN105730506A (en) | 2016-07-06 |
| CN105730506B CN105730506B (en) | 2018-04-03 |
Family
ID=56251277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610170544.1A Active CN105730506B (en) | 2016-03-24 | 2016-03-24 | A kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105730506B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201159687Y (en) * | 2007-12-05 | 2008-12-03 | 比亚迪股份有限公司 | Multi-freedom experimental facility of direction converter |
| KR20090082740A (en) * | 2008-01-28 | 2009-07-31 | 태양기계(주) | Leak testing method of pinion housing with power steering for car |
| CN202648962U (en) * | 2012-05-24 | 2013-01-02 | 长春科威机械有限责任公司 | Rack-and-pinion type hydraulic power steering gear performance test stand |
| CN203745211U (en) * | 2014-02-12 | 2014-07-30 | 成都孔辉汽车科技有限公司 | Steering system test bench |
| KR20140098498A (en) * | 2013-01-31 | 2014-08-08 | 김국곤 | Automotive power steering device under test |
| CN104535307A (en) * | 2014-12-11 | 2015-04-22 | 奇瑞汽车股份有限公司 | Steering gear test bed |
| CN204495572U (en) * | 2015-04-20 | 2015-07-22 | 哈尔滨力盛达机电科技有限公司 | A kind of electric power-assisted steering test stand |
| JP2015132508A (en) * | 2014-01-10 | 2015-07-23 | Ntn株式会社 | Testing machine, and testing method, for steering device |
| CN205417760U (en) * | 2016-03-24 | 2016-08-03 | 豫北转向***股份有限公司 | Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device |
-
2016
- 2016-03-24 CN CN201610170544.1A patent/CN105730506B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201159687Y (en) * | 2007-12-05 | 2008-12-03 | 比亚迪股份有限公司 | Multi-freedom experimental facility of direction converter |
| KR20090082740A (en) * | 2008-01-28 | 2009-07-31 | 태양기계(주) | Leak testing method of pinion housing with power steering for car |
| CN202648962U (en) * | 2012-05-24 | 2013-01-02 | 长春科威机械有限责任公司 | Rack-and-pinion type hydraulic power steering gear performance test stand |
| KR20140098498A (en) * | 2013-01-31 | 2014-08-08 | 김국곤 | Automotive power steering device under test |
| JP2015132508A (en) * | 2014-01-10 | 2015-07-23 | Ntn株式会社 | Testing machine, and testing method, for steering device |
| CN203745211U (en) * | 2014-02-12 | 2014-07-30 | 成都孔辉汽车科技有限公司 | Steering system test bench |
| CN104535307A (en) * | 2014-12-11 | 2015-04-22 | 奇瑞汽车股份有限公司 | Steering gear test bed |
| CN204495572U (en) * | 2015-04-20 | 2015-07-22 | 哈尔滨力盛达机电科技有限公司 | A kind of electric power-assisted steering test stand |
| CN205417760U (en) * | 2016-03-24 | 2016-08-03 | 豫北转向***股份有限公司 | Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device |
Non-Patent Citations (4)
| Title |
|---|
| 何志锋: "齿轮齿条式动力转向器性能测试***研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）》 * |
| 赵赢: "液压转向***台架耐久试验研究", 《汽车零部件》 * |
| 钟绍俊等: "汽车液压动力转向器性能测试***设计", 《机床与液压》 * |
| 雷龙超等: "齿轮齿条转向器试验台的机械设计与开发", 《黑龙江科技信息》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105730506B (en) | 2018-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 453003 No. 322 Heping Avenue, Henan, Xinxiang Applicant after: YUBEI STEERING SYSTEM (XINXIANG) CO.,LTD. Address before: 453003, Heping District, Henan, Xinxiang Red Road, No. 322 Applicant before: YUBEI STEERING SYSTEM Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 2398 Muye Avenue, high tech Zone, Xinxiang City, Henan Province Patentee after: North Henan Steering System (Xinxiang) Co.,Ltd. Address before: 453003 No. 322 Heping Avenue, Henan, Xinxiang Patentee before: YUBEI STEERING SYSTEM (XINXIANG) CO.,LTD. |