CN102998075B - Sinking bar of pneumatic slide unit cylinder - Google Patents
Sinking bar of pneumatic slide unit cylinder Download PDFInfo
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- CN102998075B CN102998075B CN201210484341.1A CN201210484341A CN102998075B CN 102998075 B CN102998075 B CN 102998075B CN 201210484341 A CN201210484341 A CN 201210484341A CN 102998075 B CN102998075 B CN 102998075B
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- lance
- wheel hub
- slide unit
- linear actuator
- guiding wheel
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Abstract
The invention discloses a sinking bar of a pneumatic slide unit cylinder. The sinking bar comprises a guide wheel hub and a sinking bar tail end, wherein the sinking bar tail end is connected with the guide wheel hub. A sinking bar guide tail end, a rubber gasket and a rigid gasket are sequentially arranged at the top end of the guide wheel hub, a clamping spring is further arranged at the top end of the guide wheel hub, and a groove corresponding to the clamping spring is arranged on a cavity wall at the top end of the guide wheel hub. The clamping spring is matched with the groove to limit the sinking bar guide tail end, the rubber gasket and the rigid gasket in a cavity at the top end of the guide wheel hub. The sinking bar tail end of the pneumatic slide unit cylinder can be detached conveniently. When damaged, the sinking bar can be replaced at any time, and impact damage to a slide unit is reduced.
Description
Technical field
The invention belongs to automotive field, relate to vehicle impact testing field, particularly relate to a kind of lance structure.
Background technology
Slide unit test is by nondestructive simulating vehicle collision movement, is subject to secondary collision and the injury values that produces is evaluated, thus realizes the short-term low cost development of occupant protection system to occupant during vehicle collision at interior.Servo acceleration table system is designed to emulate vehicle impact testing, utilize highly advanced computer-controlled A/H servo-drive system, interaction in conjunction with A/H two kinds of power sources produces collision waveform, the pneumatic part of system provides driving force to accelerate the slide unit of guiding, the braking friction of the brake cutter balanced below slide unit by hydraulic part provides the power delaying to accelerate, and therefore the design of the pneumatic part of system just seems most important.
Slide unit test simulation real world needs a large amount of energy to carry out accelerated test parts, system stores this energy as potential energy before emulation collision, potential energy is stored with a large amount of pressurized air, and before test, the gas of storage is charged in pneumatic linear actuator according to arranging by system, and slide unit launched by pneumatic linear actuator.The pneumatic linear actuator of this testing laboratory design has three chambeies, is respectively emission cavity, air cushion chamber and cushion chamber.Pressurized air is filled with emission cavity, the then air push lance of emission cavity by Operation system setting and control during on-test, lance promotes slide unit and produces motion.Therefore the lance of pneumatic linear actuator is subject to very large power in each test, there is the risk of damage.
Summary of the invention
The object of the present invention is to provide the slide unit pneumatic linear actuator lance that a kind of end for convenience detachly can carry out keeping in repair.
The solution of the present invention is as follows:
A kind of slide unit pneumatic linear actuator lance, comprise guiding wheel hub, lance end, described lance end is connected with described guiding wheel hub, described guiding wheel hub top is provided with lance guide tip, elastomeric pad and rigid gasket successively, and described guiding wheel hub top is also provided with jump ring, and on the chamber wall on described guiding wheel hub top, corresponding described jump ring is provided with groove, described jump ring coordinates described groove, described lance guide tip, rubber sheet gasket, rigid gasket is limited in the chamber guiding wheel hub top.
Described lance guides the front opening of wheel hub, and described lance guides the front end at end to guide the front opening size of wheel hub identical with lance, and described lance guides the rear end at end and the measure-alike of described elastomeric pad.
The front end of described lance end is protruded, and the top of described bossing is provided with at least two threaded holes, and described guiding wheel hub rear portion correspondence is provided with at least two threaded holes, and described guiding wheel hub is connected via at least two bolts with described lance end.
Further, described lance end is provided with three threaded holes, and described three threaded holes are uniformly distributed along axis, and the aperture of described screwed hole of centre is greater than two threaded holes on both sides.
The fixed orifice of described bolt is counter sink.
Described lance guide tip is aluminum material.
Described elastomeric pad is rubber sheet gasket.
Beneficial effect of the present invention is as follows: the invention provides the lance that a kind of end can be for convenience detach, after guiding wheel hub top to put into rigid gasket, rubber sheet gasket and lance guide tip thereof successively, by nose pliers (specific purpose tool), jump ring clamping being encased in lance guides in the groove of wheel hub, unclamping taking-up nose pliers, now jump ring locking rigid gasket, rubber sheet gasket and lance guide tip thereof, total installs.If when finding in test that lance guide wheel hub area damages, can disassemble according to reverse order, changing, the impact failure to slide unit can be reduced simultaneously.
Accompanying drawing explanation
Fig. 1 is the front elevation of one embodiment of the invention;
Fig. 2 is cut-open view embodiment illustrated in fig. 1;
Fig. 3 is the vertical view of one embodiment of the invention lance end;
Fig. 4 is cut-away view embodiment illustrated in fig. 1;
Fig. 5 is the external structure of one embodiment of the invention.
Embodiment
As shown in Figure 1 to Figure 3, a kind of slide unit pneumatic linear actuator lance, comprise and guide wheel hub 10, lance end 20, lance end 20 is connected with guiding wheel hub 10, guides wheel hub 10 top to be provided with lance guide tip 11, elastomeric pad 12, rigid gasket 13 successively, wheel hub top is guided also to be provided with jump ring 14, guide the chamber wall on wheel hub top to be provided with groove 15, jump ring 14 fit 15, rigid gasket 13, elastomeric pad 12, its lance guide tip 11 are limited in the chamber guiding wheel hub top.In the present embodiment, elastomeric pad 12 is rubber sheet gasket.
In the present embodiment, rigid gasket 13 and rubber sheet gasket 12 are circle, and lance guides the front opening of wheel hub 10, and forward part and the lance of lance guide tip 11 guide the front end breach size of wheel hub identical, rear end and rubber sheet gasket measure-alike.Between lance guide tip 11 and rigid gasket 13, arrange rubber sheet gasket 12, promote slide unit motion at lance and be subject in the process of impulsive force, rubber sheet gasket 12 pairs of impulsive forces provide certain buffer action, can extend the serviceable life of lance.
The front end of lance end 20 is protruded, and the top of projection is provided with at least two threaded holes, guides wheel hub rear portion correspondence to be provided with at least two threaded holes, guides wheel hub to be connected via at least two bolts 30 with lance end.As shown in Figure 3, in the present embodiment, lance end 20 is provided with three threaded holes, and three threaded holes are uniformly distributed along axis, and screwed hole of centre is comparatively large, and is provided with pad, and two, both sides threaded hole is less.The fixed orifice of three bolts is counter sink, and the fixed orifice top of bolt expands can hold whole bolt head, makes the not projecting surface of spiral shell head, and keeps plane around, does not directly contact with rigid gasket.Lance end and lance guide wheel hub to be connected by illustrated three bolts 30, during connection, use machinery to be tightened by bolt 30, can prevent in use, guide the phenomenon that wheel hub 10 is separated because impulsive force is excessive with lance end 20.
Slide unit pneumatic linear actuator lance is when installing and using, first wheel hub 10 and lance end 20 is guided by connecting via the bolt of 3 as shown in Figure 4 30, then rigid gasket 13, rubber sheet gasket 12 and lance guide tip 11 thereof is put into successively on guiding wheel hub 10 top, then using nose pliers (specific purpose tool) that jump ring 14 clamping is encased in lance guides in the groove 15 of wheel hub, unclamping taking-up nose pliers, now jump ring 15 meeting locking rigid gasket 13, rubber sheet gasket 12 and lance guide tip 11 thereof, total installs.If when finding in test that lance guide wheel hub area damages, can disassemble according to reverse order, then changing.
Wherein in an embodiment, lance guide tip 11 is aluminum material, and quality is softer.In the process promoting slide unit motion, the impact failure to slide unit can be reduced.
Above-mentioned is can understand for ease of those skilled in the art and use the utility model to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art, according to announcement of the present utility model, do not depart from improvement that the utility model category makes and amendment all should within protection domain of the present utility model.
Claims (7)
1. a slide unit pneumatic linear actuator lance, comprise guiding wheel hub, lance end, described lance end is connected with described guiding wheel hub, it is characterized in that: described guiding wheel hub top is provided with lance guide tip, elastomeric pad and rigid gasket successively, described guiding wheel hub top is also provided with jump ring, on the chamber wall on described guiding wheel hub top, corresponding described jump ring is provided with groove, described jump ring coordinates described groove, described lance guide tip, rubber sheet gasket, rigid gasket is limited in the chamber guiding wheel hub top.
2. slide unit pneumatic linear actuator lance according to claim 1, it is characterized in that: described lance guides the front opening of wheel hub, described lance guides the front end at end to guide the front opening size of wheel hub identical with lance, and described lance guides the rear end at end and the measure-alike of described elastomeric pad.
3. slide unit pneumatic linear actuator lance according to claim 1, it is characterized in that: the front end of described lance end is protruded, the top of described bossing is provided with at least two threaded holes, described guiding wheel hub rear portion correspondence is provided with at least two threaded holes, and described guiding wheel hub is connected via at least two bolts with described lance end.
4. slide unit pneumatic linear actuator lance according to claim 3, is characterized in that: described lance end is provided with three threaded holes, described three threaded holes are uniformly distributed along axis, and the aperture of described screwed hole of centre is greater than two threaded holes on both sides.
5. slide unit pneumatic linear actuator lance according to claim 3, is characterized in that: the fixed orifice of described bolt is counter sink.
6. slide unit pneumatic linear actuator lance according to claim 1, is characterized in that: described lance guide tip is aluminum material.
7. slide unit pneumatic linear actuator lance according to claim 1, is characterized in that: described elastomeric pad is rubber sheet gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484341.1A CN102998075B (en) | 2012-11-23 | 2012-11-23 | Sinking bar of pneumatic slide unit cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484341.1A CN102998075B (en) | 2012-11-23 | 2012-11-23 | Sinking bar of pneumatic slide unit cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102998075A CN102998075A (en) | 2013-03-27 |
| CN102998075B true CN102998075B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210484341.1A Active CN102998075B (en) | 2012-11-23 | 2012-11-23 | Sinking bar of pneumatic slide unit cylinder |
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Citations (7)
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| EP0775905A1 (en) * | 1995-11-21 | 1997-05-28 | PIRELLI COORDINAMENTO PNEUMATICI S.p.A. | Apparatus for a test of passing over an obstacle of a wheel comprising a rim and a tyre |
| CN101424585A (en) * | 2008-11-12 | 2009-05-06 | 陶泽成 | Impact test machine for baby carriage |
| CN101603879A (en) * | 2008-06-11 | 2009-12-16 | 上海奇谋能源技术开发有限公司 | A kind of method of simulated automotive collision complex curve and device |
| CN101769818A (en) * | 2010-02-08 | 2010-07-07 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
| CN201651279U (en) * | 2010-04-20 | 2010-11-24 | 扬州大学 | Reciprocating piston |
| CN102233561A (en) * | 2011-04-27 | 2011-11-09 | 苏州工业园区高登威科技有限公司 | Starlike clamp spring installation device |
| CN102248515A (en) * | 2011-03-31 | 2011-11-23 | 长城汽车股份有限公司 | Device for automatically installing snap spring |
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2012
- 2012-11-23 CN CN201210484341.1A patent/CN102998075B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0775905A1 (en) * | 1995-11-21 | 1997-05-28 | PIRELLI COORDINAMENTO PNEUMATICI S.p.A. | Apparatus for a test of passing over an obstacle of a wheel comprising a rim and a tyre |
| CN101603879A (en) * | 2008-06-11 | 2009-12-16 | 上海奇谋能源技术开发有限公司 | A kind of method of simulated automotive collision complex curve and device |
| CN101424585A (en) * | 2008-11-12 | 2009-05-06 | 陶泽成 | Impact test machine for baby carriage |
| CN101769818A (en) * | 2010-02-08 | 2010-07-07 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
| CN201651279U (en) * | 2010-04-20 | 2010-11-24 | 扬州大学 | Reciprocating piston |
| CN102248515A (en) * | 2011-03-31 | 2011-11-23 | 长城汽车股份有限公司 | Device for automatically installing snap spring |
| CN102233561A (en) * | 2011-04-27 | 2011-11-09 | 苏州工业园区高登威科技有限公司 | Starlike clamp spring installation device |
Non-Patent Citations (2)
| Title |
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| 汽车碰撞试验***动力学分析研究;闫治祥;《万方学位论文》;20100830;正文第2.3.3节、正文第四章及图4-1 * |
| 货车驾驶室摆锤碰撞安全性研究;牛正风;《万方学位论文》;20110928;全文 * |
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| CN102998075A (en) | 2013-03-27 |
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