CN103278407B - Spring fatigue testing machine - Google Patents
Spring fatigue testing machine Download PDFInfo
- Publication number
- CN103278407B CN103278407B CN201310209561.8A CN201310209561A CN103278407B CN 103278407 B CN103278407 B CN 103278407B CN 201310209561 A CN201310209561 A CN 201310209561A CN 103278407 B CN103278407 B CN 103278407B
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- China
- Prior art keywords
- spring
- slide rail
- piston
- fork
- block
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- Expired - Fee Related
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Abstract
The invention relates to a spring fatigue testing machine used for simulating actual spring fatigue tests. The spring fatigue testing machine is characterized by comprising a swing connecting rod, wherein the swing connecting rod is connected with a slide rail in a cross shape, the tail end of the slide rail is connected with a spring compression mechanism, and the spring compression mechanism is arranged in a spring sleeve. The spring fatigue testing machine provided by the invention is reasonable in design and convenient to use, a smart structure combination is used for performing compression test on the spring, accurately simulating the application environment of the spring and ensuring more accurate spring test.
Description
Technical field
Patent of the present invention relates to a kind of spring fatigue test machine for simulating the actual testing fatigue of spring.
Background technology
One of core component of syringe is the Compress Spring of a high strength.The using method of spring is first compressed to certain length, and possessed certain potential energy, then by control gear, spring has been excited suddenly, the pushrod advances of pushing syringe completes action of injection.Present spring fatigue tester table utilizes cam Compress Spring, and spring is moved reciprocatingly, and the shortcoming of prior art is:
1. cam rotarily drives spring to-and-fro movement, can not go out to excite the compression of spring to excite situation by real simulation, the serviceable life of easy erroneous judgement spring (excites spring technical requirement: the spring access times that excite in injector are not less than 5000 times, adopting existing test machine to test excites spring life can reach more than 15000 times, and the change of size and dynamics still meets request for utilization.But when spring will be excited to install in injector carry out actual testing fatigue, can only use about 1000 times, spring just fails.）。Can find out by analyzing, a lot, existing spring fatigue test machine can not meet our request for utilization to more severe when exciting the actual service conditions of spring to run than spring test machine.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide one can overcome above-mentioned defect, can accurately to the spring fatigue test machine that Compress Spring is tested.
Spring fatigue test machine provided by the present invention, is characterized in that, comprise swing connecting bar, swing connecting bar connecting sliding rail is cross-shaped, and the end linking springs compressing mechanism of slide rail, spring-compressed mechanism is placed in spring spool.
Swing connecting bar comprises fork and cam, the two ends of fork have the groove of strip, cam projection on cam inserts the groove of fork side, and insert slide rail projection in the groove of fork opposite side, cam projection and slide rail projection all match with the width of groove on fork.
Slide rail is arranged in chute.
The end of slide rail is F shape end, and the afterbody of the upper horizontal edge of F shape end arranges compressing bearing, the lower horizontal edge linking springs compressing mechanism of F shape end.
Spring spool is columnar structured, and its top has through hole.
Spring-compressed mechanism comprises piston ejector ram, ejector piston and resetting-mechanism, piston ejector ram, ejector piston is corresponding with the position of lower horizontal edge, resetting-mechanism comprises back-moving spring, block, one end of back-moving spring is fixed on spring spool, the other end is connected with block, block is the L shape structure of traverse, and connect back-moving spring under the long limit of block, the minor face of shelves frame probes in the through hole of spring spool.Piston ejector ram, ejector piston is T-shaped
The beneficial effect that the present invention has is, reasonable in design, easy to use, has carried out the compression verification of paired springs, the environment for use of accurate simulation spring by textural association cleverly, more accurate to the test of spring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the present invention is guide rail and spring-compressed mechanism structure schematic diagram;
Fig. 3 is the present invention is guide rail and spring-compressed mechanism structure for amplifying schematic diagram;
In figure: 1, fork; 2, cam; 3, groove; 4, slide rail projection; 5, cam projection; 6, slide rail; 7, chute; 8, F shape end; 9, upper horizontal edge; 10, lower horizontal edge; 11, bearing is oppressed; 12, block; 13, back-moving spring; 14, piston ejector ram, ejector piston; 15, spring spool; 16, spring.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
Swing connecting bar in spring fatigue test machine as shown in Figure 1 comprises fork 1 and cam 2, the two ends of fork 1 have the groove 3 of strip, cam projection 5 on cam 2 inserts the groove 3 of fork 1 side, slide rail projection 4 is inserted in the groove 3 of fork 1 opposite side, cam projection 5 and slide rail projection 4 match with groove 3 width of fork 1, prevent power transmission process generation error, cam 2 is rotated and can accurately be transmitted on slide rail 6.Slide rail 6 slides in chute 7.The end of slide rail 6 is the corresponding piston ejector ram, ejector piston 14 of lower horizontal edge 10 that the afterbody of the upper horizontal edge 9 of F shape end 8, F shape end 8 arranges compressing bearing 11, F shape end 8, and piston ejector ram, ejector piston 14 is placed in spring spool 15.Spring spool 15 upper end connects back-moving spring 13, and the other end of back-moving spring 13 connects block 12, and block 12 is the L shape structure of traverse, and its end probes in the through hole of spring spool 15, and block 12 is corresponding with piston ejector ram, ejector piston 14 to be arranged.
During use, first spring 16 puts into spring spool 15, and piston ejector ram, ejector piston 14 inserts spring 16.Cam 2 rotates and then drives fork 1 to swing, and fork 1 drives slide rail projection 4 side-to-side movement, and slide rail 6 is slided in chute 7.As shown in Figure 3, when slide rail 6 slides to the right, upper horizontal edge 9 and the lower horizontal edge 10 of F shape end 8 move right simultaneously, lower horizontal edge 10 heads on piston ejector ram, ejector piston 14 Compress Spring 16, the end of block 12 oppressed by the compressing bearing 11 of upper horizontal edge 9, under the effect of back-moving spring 13, make block 12 end move downwards simultaneously, block piston ejector ram, ejector piston 14, piston ejector ram, ejector piston 14 cannot be rebounded.When fork 1 drives slide rail 6 to slide left, the upper horizontal edge 9 of F shape end 8, lower horizontal edge 10 left simultaneously, are now oppressed bearing 11 slowly motion compressing block 12 backward, block 12 end are slowly upwards lifted, no longer block piston ejector ram, ejector piston 14, make spring 16 enter excited state.Cam 2 not stall is moved, and makes slide rail 6 ceaselessly side-to-side movement, reaches test purpose.
Claims (4)
1. a spring fatigue test machine, is characterized in that, comprises swing connecting bar, and swing connecting bar connecting sliding rail is cross-shaped, the end linking springs compressing mechanism of slide rail, and spring-compressed mechanism is placed in spring spool; Swing connecting bar comprises fork and cam, the two ends of fork have the groove of strip, cam projection on cam inserts the groove of fork side, and insert slide rail projection in the groove of fork opposite side, cam projection and slide rail projection all match with the width of groove on fork; Slide rail is arranged in chute;
The end of slide rail is F shape end, and the afterbody of the upper horizontal edge of F shape end arranges compressing bearing, the lower horizontal edge linking springs compressing mechanism of F shape end.
2. spring fatigue test machine according to claim 1, is characterized in that, spring spool is columnar structured, and its top has through hole.
3. spring fatigue test machine according to claim 1, it is characterized in that, spring-compressed mechanism comprises piston ejector ram, ejector piston and resetting-mechanism, piston ejector ram, ejector piston is corresponding with the position of lower horizontal edge, and resetting-mechanism comprises back-moving spring, block, and one end of back-moving spring is fixed on spring spool, the other end is connected with block, block is the L shape structure of traverse, and connect back-moving spring under the long limit of block, the minor face of shelves frame probes in the through hole of spring spool.
4. spring fatigue test machine according to claim 3, is characterized in that, piston ejector ram, ejector piston is T-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209561.8A CN103278407B (en) | 2013-05-30 | 2013-05-30 | Spring fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209561.8A CN103278407B (en) | 2013-05-30 | 2013-05-30 | Spring fatigue testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103278407A CN103278407A (en) | 2013-09-04 |
| CN103278407B true CN103278407B (en) | 2015-04-22 |
Family
ID=49060991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310209561.8A Expired - Fee Related CN103278407B (en) | 2013-05-30 | 2013-05-30 | Spring fatigue testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103278407B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426300B (en) * | 2019-07-30 | 2020-03-31 | 南京兆能节能科技有限公司 | Spring fatigue test device and method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3209590A (en) * | 1963-02-06 | 1965-10-05 | Budd Co | Machine for fatigue testing springs |
| FR2252567B1 (en) * | 1973-11-27 | 1980-01-25 | Setexi | |
| JPH10260122A (en) * | 1997-03-17 | 1998-09-29 | Mitsubishi Heavy Ind Ltd | Fatigue testing apparatus for spring |
| CN2727729Y (en) * | 2004-03-19 | 2005-09-21 | 株洲时代新材料科技股份有限公司 | Automobile air spring fatigue-testing machine |
| CN201757723U (en) * | 2010-07-22 | 2011-03-09 | 福清永动力弹簧科技有限公司 | Spring fatigue testing device |
| CN202614521U (en) * | 2012-06-05 | 2012-12-19 | 济宁力科液压有限责任公司 | Spring fatigue testing device |
| CN202735176U (en) * | 2012-06-15 | 2013-02-13 | 天津市大港汽车配件弹簧厂 | Beveling type suspension spiral spring fatigue test device |
| CN102980760B (en) * | 2012-12-11 | 2015-01-14 | 安徽合力股份有限公司 | Fatigue test device for compression spring |
| CN203310614U (en) * | 2013-05-30 | 2013-11-27 | 山东中保康医疗器具有限公司 | Spring fatigue test machine |
-
2013
- 2013-05-30 CN CN201310209561.8A patent/CN103278407B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103278407A (en) | 2013-09-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20190530 |
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| CF01 | Termination of patent right due to non-payment of annual fee |