CN104308777B - Spring creep test test fixture - Google Patents
Spring creep test test fixture Download PDFInfo
- Publication number
- CN104308777B CN104308777B CN201410573330.XA CN201410573330A CN104308777B CN 104308777 B CN104308777 B CN 104308777B CN 201410573330 A CN201410573330 A CN 201410573330A CN 104308777 B CN104308777 B CN 104308777B
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- CN
- China
- Prior art keywords
- upper cover
- pressure
- spring
- cantilever
- bearing bolt
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of spring creep test test fixture, it comprises: support, and it has a cantilever and a base; Upper cover, its sliding fitting on support, and between upper cover and base, be formed for pressure holding and locate the spring clamp area of spring to be measured; Pressure-bearing bolt, it is arranged on cantilever and can moves axially with respect to cantilever, and the bottom of pressure-bearing bolt is flexibly connected with upper cover orders about upper cover while moving axially with respect to cantilever with convenient pressure-bearing bolt and slides with respect to support; Bolt fixing mechanism, it is arranged between pressure-bearing bolt and cantilever for use in fixing the position of pressure-bearing bolt with respect to cantilever. The present invention has not only completed well to spring creep test, and the good reliability of test, and dismounting is more convenient, has reduced labour intensity, and anti-braking ability is good, can meet the creep test of various springs.
Description
Technical field
The present invention relates to a kind of test fixture of spring, specifically, relate to a kind of spring creep test test fixture.
Background technology
At present, in use, the normal requirement of spring maintains a fixing load, on specific position, is providing one admittedlyFixed power, or working cycles between the two positions, in these cases, be subject to higher stress state and do the used time,Make elastic strain that plastic deformation occur gradually, caused spring capacity decline. At some dangerous working environment, asSafety valve spring in chemistry and petro chemical industry, relaxing of spring may cause letting out of danger or noxious materialReveal, even can cause the danger of blast, therefore the detection of relaxing of spring performance is absolutely necessary. According to GBRelevant regulations, the creep test lax relevant to spring heat need to be placed into spring-compressed to the height of operational forces value F2In temperature control box, keep 72 hours. Current, according to the operational forces value F2 of different springs and test quantity, conventionally select certainThe upper cover of weight and counterweight, to the height suitable with spring operational forces value F2, then put into temperature control box by spring-compressedCarry out creep test, this method of testing is relatively simple, but operating process is more loaded down with trivial details, and easy in test processBe given a shock, the inhomogeneous interference that causes the extraneous factors such as upper cover inclination of relaxing of spring power, test process is difficult to control.
Summary of the invention
Technical problem to be solved by this invention is the defect that overcomes prior art, and a kind of spring creep test test clip is providedTool, it has not only completed well to spring creep test, and the good reliability of test, and dismounting is more convenient, reducesLabour intensity, and anti-braking ability is good, can meet the creep test of various springs.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of spring creep test test fixture, its bagDraw together:
Support, it has a cantilever and a base;
Upper cover, its sliding fitting on support, and between upper cover and base, be formed for pressure holding and locate the spring of spring to be measuredClamp area;
Pressure-bearing bolt, it is arranged on cantilever and can moves axially with respect to cantilever, the bottom of pressure-bearing bolt and upper cover activityWhen connection moves axially with respect to cantilever with convenient pressure-bearing bolt, ordering about upper cover slides with respect to support;
Bolt fixing mechanism, it is arranged between pressure-bearing bolt and cantilever for use in fixing pressure-bearing bolt with respect to cantileverPosition.
A kind of concrete structure of bolt fixing mechanism is further provided so as to meet its can limit pressure-bearing bolt with respect toThe requirement of the position of cantilever, bolt fixing mechanism comprises top nut and lower nut, top nut and lower nut all connect by screw threadBe connected on pressure-bearing bolt, and top nut and lower nut lay respectively at the both sides of cantilever.
Further provide a kind of upper cover on support, to locate sliding mode of joining so that it slides well on support, supportOn be provided with chute, cover on described and be provided with the positioning sliding block that can slide at chute interior orientation, described upper cover passes throughPositioning sliding block fits on support with the cunning that coordinates of chute.
Further in order to make operating personnel can know the displacement of upper cover so that regulating spring arrives its work betterHighly, on support near being provided with rule on the position of chute, this rule match with positioning sliding block for use inRead the displacement of upper cover.
Further for handled easily person can reach time saving and energy saving object with spanner rotating pressure-bearing bolt, pressure-bearing boltHead end has pressure-bearing bolt head.
Further in order to locate well spring to be measured, above to cover, upper cover alignment pin is installed, on described base, pacifiesThe base alignment pin matching with corresponding upper cover alignment pin is housed, and the two ends of spring to be measured are connected to respectively upper cover locationOn pin and base alignment pin.
Adopt after technique scheme, when test, first spring to be measured has been placed between base and upper cover to rotating pressure-bearingBolt, pressure-bearing bolt drives upper cover to move downward together, arrives after the working depth of spring to be measured, then adopts bolt to fixThe now position of pressure-bearing bolt is fixed by mechanism, thereby the test height of spring to be measured is fixed, and then puts into temperature control boxCarry out the creep test of spring to be measured, after having tested, with unclamping bolt fixing mechanism, then rotating pressure-bearing bolt, make to holdPress bolt to drive upper cover to move upward together, then take out spring to be measured, completed the creep test of spring to be measured, andAnd the good reliability of test, dismounting is more convenient, has reduced labour intensity, and anti-braking ability is good, can meet eachPlant the creep test of spring.
Brief description of the drawings
Fig. 1 is the structural representation of the test fixture of spring of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the rearview of Fig. 1.
Detailed description of the invention
For content of the present invention is more easily expressly understood, below according to specific embodiment also by reference to the accompanying drawings, to thisInvention is described in further detail.
As shown in Figures 1 to 3, a kind of spring creep test test fixture, it comprises:
Support 1, it has a cantilever 11 and a base 13;
Upper cover 6, its sliding fitting on support 1, and be formed for pressure holding and locate bullet to be measured between upper cover 6 and base 13The spring clamp area of spring 8;
Pressure-bearing bolt 5, it is arranged on cantilever 11 and can moves axially with respect to cantilever 11, the bottom of pressure-bearing bolt 5Be flexibly connected with upper cover 6 while moving axially with respect to cantilever 11 with convenient pressure-bearing bolt 5 and order about upper cover 6 with respect to support 1Slide;
Bolt fixing mechanism, it is arranged between pressure-bearing bolt 5 and cantilever 11 relative for use in fixing pressure-bearing bolt 5In the position of cantilever 11.
As shown in Figure 1, bolt fixing mechanism comprises top nut 3 and lower nut 2, and top nut 3 and lower nut 2 all pass throughBe threaded on pressure-bearing bolt 5, and top nut 3 and lower nut 2 lay respectively at the both sides of cantilever 11.
As shown in Figure 2,3, on support 1, be provided with chute 12, on upper cover 6, be provided with and can slide at chute 12 interior orientationsPositioning sliding block 61, upper cover 6 fits on support 1 with the cunning that coordinates of chute 12 by positioning sliding block 61.
As shown in Figure 3, on support 1, be provided with rule 121, this rule 121 near on the position of chute 12Match for use in the displacement that reads upper cover 6 with positioning sliding block 61.
As shown in Figure 1, the head end of pressure-bearing bolt 5 has pressure-bearing bolt head 4.
As shown in Figure 1, upper cover alignment pin 7 is installed on upper cover 6, on base 13, is provided with and corresponding upper cover locationThe pin 7 base alignment pins 9 that match, the two ends of spring 8 to be measured are connected to respectively upper cover alignment pin 7 and base alignment pinOn 9. Paired upper cover alignment pin 7 and the quantity of base alignment pin 9 are not limit.
Operation principle of the present invention is as follows:
When test, first tested spring 8 is placed between base alignment pin 9 and upper cover alignment pin 7, uses ratchet wrench hand-screwVicarious pressure bolt head 4, pressure-bearing bolt 5 drives upper cover 6 to move downward together, and positioning sliding block 61 is also at support 1 simultaneouslyOn chute 12 in move downward, continue rotating ratchet spanner, read the displacement on rule 121 simultaneously, arriveReach after the working depth of tested spring 8, then with opposite spin lower nuts 2 and the top nut 3 respectively of 2 spanners, therebyThe test height of tested spring 8 is fixed, then put into temperature control box and carry out the creep test of tested spring 8.
After having tested, with two spanners rotating Vortex simultaneously, unclamp lower nut 2 and top nut 3, then use ratchet spannerRotating pressure-bearing bolt head 4, makes pressure-bearing bolt 5 drive upper cover 6 to move upward together, then takes out tested spring 8,Complete the creep test of spring.
In the present invention, the replaceable different upper cover alignment pin 7 of the tested spring 8 of corresponding different inner diameters and base alignment pin 9,Thereby realize the versatility of this test fixture.
Above-described specific embodiment, technical problem, technical scheme and beneficial effect that the present invention is solved enterOne step describes in detail, and institute it should be understood that and the foregoing is only specific embodiments of the invention, is not limited toThe present invention, within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., all should wrapWithin being contained in protection scope of the present invention.
Claims (6)
1. a spring creep test test fixture, is characterized in that, it comprises:
Support (1), it has a cantilever (11) and a base (13);
Upper cover (6), it is slided and fits over support (1) above, and is formed for pressure holding between upper cover (6) and base (13)And locate the spring clamp area of spring to be measured (8);
Pressure-bearing bolt (5), it is arranged on, and cantilever (11) is upper also can be moved axially with respect to cantilever (11), pressure-bearing bolt(5) bottom is flexibly connected with upper cover (6) while moving axially with respect to cantilever (11) with convenient pressure-bearing bolt (5)Ordering about upper cover (6) slides with respect to support (1);
Bolt fixing mechanism, it is arranged between pressure-bearing bolt (5) and cantilever (11) for use in fixing pressure-bearing bolt(5) with respect to the position of cantilever (11).
2. spring creep test test fixture according to claim 1, is characterized in that: described bolt is fixedMechanism comprises top nut (3) and lower nut (2), and top nut (3) and lower nut (2) are all threaded connection and are holdingPress bolt (5) upper, and top nut (3) and lower nut (2) lay respectively at the both sides of cantilever (11).
3. spring creep test test fixture according to claim 1 and 2, is characterized in that: described support(1) on, be provided with chute (12), on described upper cover (6), be provided with determining of can sliding at chute (12) interior orientationPosition slide block (61), described upper cover (6) fits over support (1) by positioning sliding block (61) with the cunning that coordinates of chute (12)On.
4. spring creep test test fixture according to claim 3, is characterized in that: described support (1)Above be provided with rule (121) near on the position of chute (12), this rule (121) and positioning sliding block (61)Match for use in the displacement that reads upper cover (6).
5. spring creep test test fixture according to claim 1 and 2, is characterized in that: described pressure-bearingThe head end of bolt (5) has pressure-bearing bolt head (4).
6. spring creep test test fixture according to claim 1 and 2, is characterized in that: described upper cover(6) upper cover alignment pin (7) is installed on, on described base (13), is provided with and corresponding upper cover alignment pin (7)The base alignment pin (9) matching, the two ends of spring to be measured (8) are connected to respectively upper cover alignment pin (7) and base is fixedOn position pin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573330.XA CN104308777B (en) | 2014-10-23 | 2014-10-23 | Spring creep test test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573330.XA CN104308777B (en) | 2014-10-23 | 2014-10-23 | Spring creep test test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104308777A CN104308777A (en) | 2015-01-28 |
| CN104308777B true CN104308777B (en) | 2016-05-25 |
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ID=52364159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410573330.XA Active CN104308777B (en) | 2014-10-23 | 2014-10-23 | Spring creep test test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104308777B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318167A (en) * | 2017-12-07 | 2018-07-24 | 中国航发贵州黎阳航空动力有限公司 | A kind of waveform spring device for measuring force and force measuring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1428989A1 (en) * | 1987-02-17 | 1988-10-07 | Е.В. Лодус | Installation for testing specimens for creeping and durable strength |
| CN201575954U (en) * | 2009-11-30 | 2010-09-08 | 中国航空工业集团公司北京航空材料研究院 | Loading device used for accelerated test of stress relaxation of spiral compression spring |
| CN203894046U (en) * | 2014-06-07 | 2014-10-22 | 河北联合大学 | Device for measuring non-linear characteristics of plate spring |
| CN204209582U (en) * | 2014-10-23 | 2015-03-18 | 常州机电职业技术学院 | Spring creep test test fixture |
-
2014
- 2014-10-23 CN CN201410573330.XA patent/CN104308777B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1428989A1 (en) * | 1987-02-17 | 1988-10-07 | Е.В. Лодус | Installation for testing specimens for creeping and durable strength |
| CN201575954U (en) * | 2009-11-30 | 2010-09-08 | 中国航空工业集团公司北京航空材料研究院 | Loading device used for accelerated test of stress relaxation of spiral compression spring |
| CN203894046U (en) * | 2014-06-07 | 2014-10-22 | 河北联合大学 | Device for measuring non-linear characteristics of plate spring |
| CN204209582U (en) * | 2014-10-23 | 2015-03-18 | 常州机电职业技术学院 | Spring creep test test fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104308777A (en) | 2015-01-28 |
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