CN205417760U - Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device - Google Patents
Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device Download PDFInfo
- Publication number
- CN205417760U CN205417760U CN201620229431.XU CN201620229431U CN205417760U CN 205417760 U CN205417760 U CN 205417760U CN 201620229431 U CN201620229431 U CN 201620229431U CN 205417760 U CN205417760 U CN 205417760U
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- China
- Prior art keywords
- rack
- pressure sensor
- draw
- detection device
- pinion
- Prior art date
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device, including the draw in rod bulb of test bench, rack and outer end, the piston rod that is fixed in the hydro -cylinder on the test bench with the centre of sphere of draw in rod bulb is relative and mutually perpendicular with the rack, and this piston rod is connected with pressure sensor, and the cover barrel casing is established on the draw in rod bulb, be equipped with the connecting rod between pressure sensor and the sleeve, the both ends of this connecting rod all be equipped with the screw respectively with pressure sensor on threaded holes and cover barrel on the screw hole match. The utility model has the advantages of what detection efficiency was high is showing.
Description
Technical field:
The utility model 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 assemblies such as rack piston and hydraulic cylinder seal，Steering gear work middle rack makees 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 detection 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 be in oil cylinder end generation leakage of oil，Now，This batch of product need to be readjusted and assembled.The defect of this detection device is, detects a product needed and carries out 24 hours, and efficiency is low.
Summary of the invention:
The utility model purpose is to provide a kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device that a kind of detection efficiency is high.
Realizing the technical solution of the utility model is, 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 sensor, sleeve is set on described draw-in bar bulb, it is provided with connecting rod between described pressure sensor and sleeve, the two ends of this connecting rod be equipped with screw thread respectively with the screwed hole on pressure sensor and the corresponding threaded holes on sleeve body.
The utility model has the remarkable advantage that detection efficiency is high compared with the prior art.
Accompanying drawing illustrates:
Fig. 1 is front view of the present utility model；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 load of tooth bar outer end is improved, this technical scheme improved 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 sensor 1 body, the front side screwed hole of this pressure sensor body matches with the screw thread of connecting rod 8 one end, the other end of this connecting rod links with described sleeve, as being welded to connect, can also be with threaded, now on the outer tube wall of sleeve, a cylinder is set, 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 piston rod applies pressure to tooth bar, 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 thereof, hydraulic cylinder fix seat 6, tooth bar, oil cylinder 4, power shaft 5 without modification.
Operation principle of the present utility model 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 load is applied through pressure sensor and connecting rod and the external tie rod ball of sleeve by piston rod, the radial load being controlled pressure cylinder applying by pressure sensor reaches setting value, now rack-and-pinion hydraulic steering gear is injected hydraulic oil, observe the whether leakage of oil of oil cylinder termination, during detection, steering gear rack can move back and forth, can also static not move, testing result is identical.Whole detection process the most 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 sensor, sleeve is set on described draw-in bar bulb, be provided with connecting rod between described pressure sensor and sleeve, the two ends of this connecting rod be equipped with screw thread respectively with the screwed hole on pressure sensor and the corresponding threaded holes on sleeve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229431.XU CN205417760U (en) | 2016-03-24 | 2016-03-24 | Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229431.XU CN205417760U (en) | 2016-03-24 | 2016-03-24 | Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205417760U true CN205417760U (en) | 2016-08-03 |
Family
ID=56548055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620229431.XU Withdrawn - After Issue CN205417760U (en) | 2016-03-24 | 2016-03-24 | Rack and pinion hydrostatic steering unit hydraulic pressure cylinder end oil leakage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205417760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730506A (en) * | 2016-03-24 | 2016-07-06 | 豫北转向系统股份有限公司 | Oil leakage detecting device for hydraulic cylinder end of gear-rack hydraulic steering gear |
-
2016
- 2016-03-24 CN CN201620229431.XU patent/CN205417760U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730506A (en) * | 2016-03-24 | 2016-07-06 | 豫北转向系统股份有限公司 | Oil leakage detecting device for hydraulic cylinder end of gear-rack hydraulic steering gear |
| CN105730506B (en) * | 2016-03-24 | 2018-04-03 | 豫北转向系统（新乡）有限公司 | A kind of rack-and-pinion hydraulic steering gear cylinder ends leakage detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 453003 No. 322 Heping Avenue, Henan, Xinxiang Patentee after: The steering system (Xinxiang) Co. Ltd. Address before: 453003, Heping District, Henan, Xinxiang Red Road, No. 322 Patentee before: Yubei Steering System Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20180403 |