CN102944400A - Annular power flow fatigue testing machine - Google Patents
Annular power flow fatigue testing machine Download PDFInfo
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- CN102944400A CN102944400A CN2012104461385A CN201210446138A CN102944400A CN 102944400 A CN102944400 A CN 102944400A CN 2012104461385 A CN2012104461385 A CN 2012104461385A CN 201210446138 A CN201210446138 A CN 201210446138A CN 102944400 A CN102944400 A CN 102944400A
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- oil cylinder
- boosting
- tested
- piston
- push rod
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Abstract
The invention discloses an annular power flow fatigue testing machine, which relates to the field of the mechanical structure. The annular power flow fatigue testing machine comprises a motive power driving device, a to-be-tested oil cylinder, a boosting oil cylinder, a load and energy storage device and a rack, wherein the motive driving device is connected with one end of the boosting oil cylinder; a servo motor is connected with one end of a motive power push rod via a ball screw; a to-be-tested oil cylinder piston is pushed by the motive power push rod to enable oil liquid in a rodless cavity of the to-be-tested oil cylinder to be extruded; a high-pressure circulation tube is connected with one end of the to-be-tested oil cylinder; the oil liquid enters the rodless cavity of the boosting oil cylinder via the high-pressure circulation tube; a boosting cover is pushed by the piston of the boosting oil cylinder to advance; the piston of the to-be-tested oil cylinder is pushed by the push rod of the boosting cover; and an auxiliary load block and a pulley group are connected with a pressure-regulation oil cylinder. The output driving load force of a to-be-tested piece is used for driving the to-be-tested piece, so that energy which is originally wasted is used as driving force for the to-be-tested piece, most power is subjected to closed transmission, less power is consumed, and the pure outside input power is reduced.
Description
Technical field
The present invention relates to mechanical structure field, especially a kind of annular power stream fatigue tester.
Background technology
At present, the working in reciprocating mode type component is such as oil cylinder, automobile brake pump etc., go to toward will be according to national technical standard in batch production, carry out fatigue life test, test under the fixed load until come and go the number of times of work when losing efficacy, reflect the life-span of product with this.Patent of the present invention is exactly to be applied in the equipment of this type of detection system.
Fatigue life test stand in usefulness all adopts motor or air cylinder driven by test specimen now, uses the load acting that is driven setting by the output of test specimen again, and energy is consumed.This mode needs drive unit and the load device of relatively high power, and power consumption is large, and equipment occupation space is large.
Summary of the invention
The purpose of this invention is to provide a kind of former drive unit and assist device combines together and jointly drives physical construction by test specimen.The present invention-annular power stream fatigue tester utilization is driven by the input of test specimen by most of power output of test specimen, and the part that lacks is provided by motive power, has reduced former driving force with this.
Design proposal of the present invention is as follows:
The present invention-annular power stream fatigue tester, it comprises motive power drive unit 5, by test specimen oil cylinder 1, boosting cylinder 7 and load storage energy device 10 and stand, former drive unit 16 links to each other with boosting cylinder 7 one ends, servomotor 17 links to each other with motive power push rod 13 1 ends by ball-screw, motive power push rod 13 promotes tested oil cylinder 1 piston is extruded tested oil cylinder 1 rodless cavity fluid, high pressure circulating pipe 4 links to each other with tested oil cylinder 1 one ends, fluid enters boosting oil cylinder 7 rodless cavities by high pressure circulating pipe 4, boosting oil cylinder 7 pistons promote boosting cover 5 and advance, the push rod of boosting cover 5 promotes the piston of tested oil cylinder 1, and unnecessary high-voltage oil liquid drives 10 operations of pressure regulation oil cylinder.
Advantage of the present invention is that it can energy efficient, simplify fatigue experimental device, utilization is brought by the power of the output driving load of test specimen and is driven by test specimen self, with this energy that originally will slattern as by the driving force of test specimen, make the transmission of most power enclosed, used up power is considerably less, has reduced extraneous pure Input Forces.
Description of drawings
Fig. 1 is the front view of the present invention's annular power stream fatigue tester.
Fig. 2 is the vertical view of the present invention's annular power stream fatigue tester.
Fig. 3 is the cut-open view of the present invention's annular power stream fatigue tester.
1. tested oil cylinders among the figure; 2. tensimeter; 3 by the test specimen piston; 4. high pressure circulating pipe; 5. boosting cover; 6. depression circulation pipe; 7 boosting oil cylinders: 8. assistant load piece; 9 pulley blockss; 10 pressure regulation oil cylinders; 11. worktable; 12.T the type platform, 13. active push rods; 14. power sensor; 15. displacement transducer; 16. motility device; 17. servomotor; 18. observing and controlling computer.
Embodiment
This testing machine system is mainly by motive power drive unit 5, formed by test specimen 1 and anchor clamps, boosting cylinder 7 and load storage energy device 10 and stand.Former drive unit and boosting cylinder link together, and realize jointly driving by the function of test specimen.According to by test specimen, calculate assist device during design, and set up the pressure regulation load weight, with this system is under the constant load of setting.
Bed stead, after adjust in the gap, drive ball-screw by servomotor 16 and promote 13 reaches of motive power push rod, and promote the piston movement of tested oil cylinder 1 piston, tested oil cylinder 1 rodless cavity fluid is extruded, enter high pressure circulating pipe 4, setting up below the top pressure, this fluid can enter boosting oil cylinder 7 rodless cavities, pushing piston advances, piston promotes boosting cover 5 through piston joint and advances, push rod by boosting cover 5 is applied to strength on the piston of tested oil cylinder 1 again, because the boosting oil cylinder piston is designed to 90% of tested oil cylinder piston diameter, therefore boosting cylinder piston travelling speed can be greater than tested oil cylinder speed, after the push rod of boosting cover 5 was applied on the tested oil cylinder piston, the unnecessary high-voltage oil liquid of generation then drove 10 operations of pressure regulation oil cylinder, made the pressure operation of tested oil cylinder to set up of fatigue tester, high-voltage oil liquid is with annularly flow simultaneously, tested oil cylinder and boosting oil cylinder interact, and therefore can save theoretically 80% energy, also can save certain space.When returning, retreated by the driven by servomotor push rod, under differential pressure action, got back to original position by test specimen and boosting oil cylinder and pressure regulation oil cylinder, and prepare beginning and work next time.
Claims (1)
1. annular power flows fatigue tester, it comprises motive power drive unit (5), by test specimen oil cylinder (1), boosting cylinder (7) and load storage energy device (10) and stand, it is characterized in that: former drive unit (16) links to each other with boosting cylinder (7) one ends, servomotor (17) links to each other with motive power push rod (13) one ends by ball-screw, motive power push rod (13) promotes tested oil cylinder (1) piston is extruded tested oil cylinder (1) rodless cavity fluid, high pressure circulating pipe (4) links to each other with tested oil cylinder (1) one end, fluid enters boosting oil cylinder (7) rodless cavity by high pressure circulating pipe (4), boosting oil cylinder (7) piston promotes boosting cover (5) and advances, the push rod of boosting cover (5) promotes the piston of tested oil cylinder (1), assistant load piece (8), pulley blocks (9) is connected with pressure regulation oil cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446138.5A CN102944400B (en) | 2012-11-09 | 2012-11-09 | Annular poower flow fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210446138.5A CN102944400B (en) | 2012-11-09 | 2012-11-09 | Annular poower flow fatigue tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102944400A true CN102944400A (en) | 2013-02-27 |
| CN102944400B CN102944400B (en) | 2015-10-28 |
Family
ID=47727362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210446138.5A Expired - Fee Related CN102944400B (en) | 2012-11-09 | 2012-11-09 | Annular poower flow fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102944400B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939421A (en) * | 2014-03-10 | 2014-07-23 | 北京工业大学 | Fatigue test method and device used for hydraulic cylinder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262133Y (en) * | 1996-08-15 | 1997-09-10 | 机械工业部北京起重运输机械研究所 | test bed for hydraulic cylinder |
| CN201637565U (en) * | 2009-12-30 | 2010-11-17 | 长春市建邦汽车零部件有限公司 | Energy-saving rotary fatigue test device |
| CN102340232A (en) * | 2011-07-19 | 2012-02-01 | 无锡市中惠橡胶科技有限公司 | Alternating-current (AC) self-sealing energy-saving system for tape fatigue tester |
-
2012
- 2012-11-09 CN CN201210446138.5A patent/CN102944400B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262133Y (en) * | 1996-08-15 | 1997-09-10 | 机械工业部北京起重运输机械研究所 | test bed for hydraulic cylinder |
| CN201637565U (en) * | 2009-12-30 | 2010-11-17 | 长春市建邦汽车零部件有限公司 | Energy-saving rotary fatigue test device |
| CN102340232A (en) * | 2011-07-19 | 2012-02-01 | 无锡市中惠橡胶科技有限公司 | Alternating-current (AC) self-sealing energy-saving system for tape fatigue tester |
Non-Patent Citations (2)
| Title |
|---|
| 孟庆华: "基于功率回收的新型液压封闭式汽车车桥疲劳试验台的研究", 《机床与液压》, vol. 35, no. 5, 31 May 2007 (2007-05-31), pages 130 - 132 * |
| 戴远敏等: "节能气动疲劳循环试验机设计", 《节能技术》, vol. 24, no. 03, 25 May 2006 (2006-05-25), pages 231 - 232 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939421A (en) * | 2014-03-10 | 2014-07-23 | 北京工业大学 | Fatigue test method and device used for hydraulic cylinder |
| CN103939421B (en) * | 2014-03-10 | 2016-05-18 | 北京工业大学 | A kind of method for testing fatigue for hydraulic cylinder and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102944400B (en) | 2015-10-28 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20171109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |