CN104236888A - Spring fatigue tensile test device and method - Google Patents
Spring fatigue tensile test device and method Download PDFInfo
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- CN104236888A CN104236888A CN201410456215.4A CN201410456215A CN104236888A CN 104236888 A CN104236888 A CN 104236888A CN 201410456215 A CN201410456215 A CN 201410456215A CN 104236888 A CN104236888 A CN 104236888A
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Abstract
The invention relates to a spring fatigue tensile test device and method. The device comprises a fixing support and a tensile device, wherein the fixing support comprises a fixed end and a movable end, the fixed end is used for fixing one end of a spring to be tested, the movable end is used for movably fixing the other end of the spring to be tested, and the tensile device is used for being connected with the movable end and pulling the movable end in a reciprocating mode at a preset frequency in the direction of the fixing support. According to the method, the spring to be tested is stretched to a preset length for the first preset time, for the second preset time and for the third preset time in a reciprocating mode, it indicates that the spring is not qualified if the spring does not meet the requirement for a preset elastic value, the spring is stretched for the next time if the spring meets the requirement for the preset elastic value, and finally it is judged that the spring to be tested is qualified if the spring meets the requirement for a third preset elastic value. By means of the device and method, fatigue tensile tests can be carried out on the spring automatically, labor is saved, the structure is simple and implementation is easy.
Description
Technical field
The present invention relates to spring field tests, particularly relate to a kind of spring fatigue tensile test device and method.
Background technology
Spring is a kind of mechanical component utilizing elasticity to carry out work.There is deformation under external force with the part that resilient material is made, restore to the original state again after removing external force.Spring is widely used in plant equipment, because it under external force deformation occurs, causes spring materials easily because repeated deformation produces fatigue effect, and then loses original elasticity, even rupture.
Summary of the invention
For the problems referred to above that existing spring exists, now provide a kind of the spring fatigue tensile test device and the method that are intended to can to realize spring being carried out to tired extension test.
To achieve these goals, present invention employs following technical scheme:
A kind of spring fatigue tensile test device, wherein, comprising:
Fixed support, described fixed support comprises stiff end one end in order to fixing spring to be tested, and a movable end is in order to the other end of mobilizable fixing described spring to be tested;
Stretching device, in order to connect described movable end, and with a preset frequency along movable end described in the reciprocal tractive in described fixed support direction.
Another aspect of the present invention, described movable end comprises:
Line slideway;
Spring fixed seat, is mobilizablely connected on described line slideway, in order to connect one end of described spring to be tested.
Another aspect of the present invention, described stretching device comprises:
Pull bar, the connection of described pull bar one end is pivotable to be connected on a connecting rod holder, on the described spring fixed seat of the pivotable connection of the other end, described pull bar offers the gathering sill of a closed at both ends along described pull bar length direction;
Motor;
Rotating shaft, one end bias be connected on described motor, the other end stretches in described gathering sill.
Another aspect of the present invention, is provided with ball bearing between described pull bar and described pull bar holder.
Another aspect of the present invention, described motor is change speed motor.
Another aspect of the present invention, described preset frequency is 0.5 hertz.
The present invention also comprises, a kind of spring fatigue tensile test method, wherein, is applied to above-mentioned spring fatigue tensile test device, comprises the steps:
Step 1, is back and forth stretched to predetermined length first pre-determined number by spring to be tested;
Step 2, detects spring force to be tested and whether meets the first default value of elastic, if otherwise judge that described spring to be tested is defective, and exit;
Step 3, is back and forth stretched to predetermined length second pre-determined number by spring to be tested;
Step 4, detects spring force to be tested and whether meets the second default value of elastic, if otherwise judge that described spring to be tested is defective, and exit;
Step 5, is back and forth stretched to predetermined length the 3rd pre-determined number by spring to be tested;
Step 6, detects spring force to be tested and whether meets the 3rd default value of elastic, if otherwise judge that described spring to be tested is defective, and exit, if it is judge that described spring to be tested is qualified.
Another aspect of the present invention, is back and forth stretched to 1730mm by 1180mm by spring to be tested in described step 1, step 3 and step 5.
Another aspect of the present invention, described first pre-determined number is 2,000,000 times, and the described first default value of elastic is 28.5N ± 2N; And/or
Described second pre-determined number is 500,000 times, and the described second default value of elastic is 47.5N ± 2N; And/or
Described 3rd pre-determined number is 500,000 times, and the described 3rd default value of elastic is 68N ± 4N.
By the enforcement to technical solution of the present invention, following technique effect can be obtained:
1, can realize automatically carrying out tired extension test to spring, save manpower;
2, structure is simply easy to implement.
Accompanying drawing explanation
Fig. 1 is the structural drawing of spring fatigue tensile test device of the present invention;
Fig. 2 is the flow chart of steps of spring fatigue tensile test method of the present invention.
Embodiment
Be described technical scheme of the present invention below by way of specific embodiment, with under the conflict free prerequisite of goal of the invention of the present invention, the technical characteristic in the embodiment hereinafter mentioned and embodiment can combine mutually.
As shown in Figure 1, the technical solution adopted in the present invention is, a kind of spring fatigue tensile test device, wherein, comprising:
Fixed support 1, fixing 1 frame comprises stiff end 11 one end in order to fixing spring 0 to be tested, and a movable end 12 is in order to the other end of mobilizable fixing spring 10 to be tested;
Stretching device 2, in order to connect movable end 12, and with a preset frequency along the reciprocal tractive movable end in fixed support 1 direction.
Technique scheme, one end of spring 0 to be tested is fixed by the stiff end 11 of fixed support 1, movable end 12 fixes the other end of spring 0 to be tested, and realize by stretching device 2 tractive movable end 12 the reciprocal stretching treating test spring 0, thus realize the tired extension test treating test spring 0.
In a kind of embodiment of the present invention, movable end 12 can comprise:
Line slideway 121;
Spring fixed seat 122, is mobilizablely connected on line slideway 121, in order to connect one end of spring 0 to be tested.
Line slideway 121 is arranged along fixed support 1 length direction, and spring fixed seat 122 linearly guide rail 121 direction, by reciprocal tractive, can not tilt when can ensure that spring 0 to be tested is stretched, thus is convenient to the tensile elongation controlling spring 0 to be tested.
In further embodiment, position limiting structure can be set on line slideway 121, the scope of activities of restraining spring holder 122 thus control be stretched length and the initial length of spring 0 to be tested.
In a kind of embodiment of the present invention, stretching device 2 can comprise:
Pull bar 21, the connection of pull bar 21 one end is pivotable to be connected on a connecting rod holder 22, on the pivotable linking springs holder 122 of the other end, pull bar 21 offers the gathering sill 211 of a closed at both ends along pull bar 21 length direction;
Motor 23;
Rotating shaft 231, one end bias be connected on motor 23, the other end stretches in gathering sill 211.
Above-mentioned embodiment drives eccentric rotating shaft 231 to rotate by motor 23, thus pull bar 21 is swung up and down, thus tractive spring fixed seat 122 linearly guide rail 121 is up and down.
In a kind of embodiment of the present invention, between pull bar 21 and pull bar holder 22, be provided with ball bearing.
In a kind of embodiment of the present invention, motor 23 can adopt change speed motor, so that the rotational speed of adjustment motor 23, and then controls spring 0 to be tested by the frequency back and forth stretched.
In a kind of embodiment of the present invention, preset frequency is 0.5 hertz.
As shown in Figure 2, also comprise in technical scheme of the present invention, a kind of spring fatigue tensile test method, wherein, be applied to above-mentioned spring fatigue tensile test device, comprise the steps:
Step 1, is back and forth stretched to predetermined length first pre-determined number by spring to be tested;
Step 2, detects spring force to be tested and whether meets the first default value of elastic, if otherwise judge that spring to be tested is defective, and exit;
Step 3, is back and forth stretched to predetermined length second pre-determined number by spring to be tested;
Step 4, detects spring force to be tested and whether meets the second default value of elastic, if otherwise judge that spring to be tested is defective, and exit;
Step 5, is back and forth stretched to predetermined length the 3rd pre-determined number by spring to be tested;
Step 6, detects spring force to be tested and whether meets the 3rd default value of elastic, if otherwise judge that spring to be tested is defective, and exit, if it is judge that spring to be tested is qualified.
In a kind of embodiment of the present invention, in step 1, step 3 and step 5, spring to be tested is back and forth stretched to 1730mm by 1180mm.
In a kind of embodiment of the present invention, the first pre-determined number is 2,000,000 times, and the first default value of elastic is 28.5N ± 2N; And/or
Second pre-determined number is 500,000 times, and the second default value of elastic is 47.5N ± 2N; And/or
3rd pre-determined number is 500,000 times, and the 3rd default value of elastic is 68N ± 4N.
The above embodiments are only that part of the present invention embodies; can not contain all of the present invention; on the basis of above-described embodiment and accompanying drawing; those skilled in the art can obtain more embodiment under the prerequisite not paying creative work, and therefore these embodiments obtained under not paying the prerequisite of creative work all should be included in protection scope of the present invention.
Claims (9)
1. a spring fatigue tensile test device, is characterized in that, comprising:
Fixed support, described fixed support comprises stiff end one end in order to fixing spring to be tested, and a movable end is in order to the other end of mobilizable fixing described spring to be tested;
Stretching device, in order to connect described movable end, and with a preset frequency along movable end described in the reciprocal tractive in described fixed support direction.
2. spring fatigue tensile test device as claimed in claim 1, it is characterized in that, described movable end comprises:
Line slideway;
Spring fixed seat, is mobilizablely connected on described line slideway, in order to connect one end of described spring to be tested.
3. spring fatigue tensile test device as claimed in claim 2, it is characterized in that, described stretching device comprises:
Pull bar, the connection of described pull bar one end is pivotable to be connected on a connecting rod holder, on the described spring fixed seat of the pivotable connection of the other end, described pull bar offers the gathering sill of a closed at both ends along described pull bar length direction;
Motor;
Rotating shaft, one end bias be connected on described motor, the other end stretches in described gathering sill.
4. spring fatigue tensile test device as claimed in claim 3, is characterized in that, be provided with ball bearing between described pull bar and described pull bar holder.
5. spring fatigue tensile test device as claimed in claim 3, it is characterized in that, described motor is change speed motor.
6. spring fatigue tensile test device as claimed in claim 1, it is characterized in that, described preset frequency is 0.5 hertz.
7. a spring fatigue tensile test method, is characterized in that, is applied to spring fatigue tensile test device as described in claim 1-6, comprises the steps:
Step 1, is back and forth stretched to predetermined length first pre-determined number by spring to be tested;
Step 2, detects spring force to be tested and whether meets the first default value of elastic, if otherwise judge that described spring to be tested is defective, and exit;
Step 3, is back and forth stretched to predetermined length second pre-determined number by spring to be tested;
Step 4, detects spring force to be tested and whether meets the second default value of elastic, if otherwise judge that described spring to be tested is defective, and exit;
Step 5, is back and forth stretched to predetermined length the 3rd pre-determined number by spring to be tested;
Step 6, detects spring force to be tested and whether meets the 3rd default value of elastic, if otherwise judge that described spring to be tested is defective, and exit, if it is judge that described spring to be tested is qualified.
8. spring fatigue tensile test method as claimed in claim 7, is characterized in that, in described step 1, step 3 and step 5, spring to be tested is back and forth stretched to 1730mm by 1180mm.
9. spring fatigue tensile test method as claimed in claim 7, it is characterized in that, described first pre-determined number is 2,000,000 times, and described first to preset value of elastic be 28.5N ± 2N; And/or
Described second pre-determined number is 500,000 times, and the described second default value of elastic is 47.5N ± 2N; And/or
Described 3rd pre-determined number is 500,000 times, and the described 3rd default value of elastic is 68N ± 4N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410456215.4A CN104236888A (en) | 2014-09-09 | 2014-09-09 | Spring fatigue tensile test device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410456215.4A CN104236888A (en) | 2014-09-09 | 2014-09-09 | Spring fatigue tensile test device and method |
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| CN104236888A true CN104236888A (en) | 2014-12-24 |
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| CN201410456215.4A Pending CN104236888A (en) | 2014-09-09 | 2014-09-09 | Spring fatigue tensile test device and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356415A (en) * | 2016-05-10 | 2017-11-17 | 上海久力弹簧制造有限公司 | A kind of multi-functional fatigue machine |
| CN108593179A (en) * | 2018-06-26 | 2018-09-28 | 王宏伟 | A kind of physics teaching spring force tester |
| CN108956340A (en) * | 2018-08-10 | 2018-12-07 | 嘉兴学院 | A kind of tensile fatigue test method |
| CN109596334A (en) * | 2019-01-15 | 2019-04-09 | 江苏云睿汽车电器***有限公司 | A kind of simple mechanism for testing vehicle wiper spring cycle-index |
| CN110411874A (en) * | 2019-08-21 | 2019-11-05 | 南京凯盟仕电子科技有限公司 | A kind of spring fatigue detection device and detection method |
| CN110514427A (en) * | 2019-09-23 | 2019-11-29 | 嘉兴市光炬五金科技有限公司 | A kind of elastic property detection device of spring production and processing |
| CN110987681A (en) * | 2019-12-26 | 2020-04-10 | 襄阳蓬达高新科技有限公司 | Binaural tension spring fracture performance detection equipment |
| CN112782013A (en) * | 2020-12-29 | 2021-05-11 | 南京林业大学 | Fatigue stretching device for rattan performance test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2547052B2 (en) * | 1987-12-28 | 1996-10-23 | 日本特殊陶業株式会社 | Cyclic fatigue test equipment |
| CN2781347Y (en) * | 2005-04-11 | 2006-05-17 | 周平钢 | Spring fatigue testing machine |
| CN201615864U (en) * | 2010-02-03 | 2010-10-27 | 杭州钱江弹簧有限公司 | Arc spring fatigue testing device |
| CN102914478A (en) * | 2012-10-30 | 2013-02-06 | 北京理工大学 | Spring-lever energy storage type fatigue tension test machine |
| CN203069464U (en) * | 2013-02-07 | 2013-07-17 | 中国铁道科学研究院金属及化学研究所 | Sealant stretcher and sealant fatigue test device including same |
| CN103994885A (en) * | 2014-06-02 | 2014-08-20 | 青岛永旗盛科技有限公司 | Automobile air spring fatigue test device |
-
2014
- 2014-09-09 CN CN201410456215.4A patent/CN104236888A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2547052B2 (en) * | 1987-12-28 | 1996-10-23 | 日本特殊陶業株式会社 | Cyclic fatigue test equipment |
| CN2781347Y (en) * | 2005-04-11 | 2006-05-17 | 周平钢 | Spring fatigue testing machine |
| CN201615864U (en) * | 2010-02-03 | 2010-10-27 | 杭州钱江弹簧有限公司 | Arc spring fatigue testing device |
| CN102914478A (en) * | 2012-10-30 | 2013-02-06 | 北京理工大学 | Spring-lever energy storage type fatigue tension test machine |
| CN203069464U (en) * | 2013-02-07 | 2013-07-17 | 中国铁道科学研究院金属及化学研究所 | Sealant stretcher and sealant fatigue test device including same |
| CN103994885A (en) * | 2014-06-02 | 2014-08-20 | 青岛永旗盛科技有限公司 | Automobile air spring fatigue test device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356415A (en) * | 2016-05-10 | 2017-11-17 | 上海久力弹簧制造有限公司 | A kind of multi-functional fatigue machine |
| CN108593179A (en) * | 2018-06-26 | 2018-09-28 | 王宏伟 | A kind of physics teaching spring force tester |
| CN108956340A (en) * | 2018-08-10 | 2018-12-07 | 嘉兴学院 | A kind of tensile fatigue test method |
| CN109596334A (en) * | 2019-01-15 | 2019-04-09 | 江苏云睿汽车电器***有限公司 | A kind of simple mechanism for testing vehicle wiper spring cycle-index |
| CN110411874A (en) * | 2019-08-21 | 2019-11-05 | 南京凯盟仕电子科技有限公司 | A kind of spring fatigue detection device and detection method |
| CN110411874B (en) * | 2019-08-21 | 2020-05-19 | 南京凯盟仕电子科技有限公司 | Spring fatigue detection device and detection method |
| CN110514427A (en) * | 2019-09-23 | 2019-11-29 | 嘉兴市光炬五金科技有限公司 | A kind of elastic property detection device of spring production and processing |
| CN110514427B (en) * | 2019-09-23 | 2020-12-08 | 嘉兴市光炬五金科技有限公司 | Elasticity performance check out test set of spring production and processing usefulness |
| CN110987681A (en) * | 2019-12-26 | 2020-04-10 | 襄阳蓬达高新科技有限公司 | Binaural tension spring fracture performance detection equipment |
| CN112782013A (en) * | 2020-12-29 | 2021-05-11 | 南京林业大学 | Fatigue stretching device for rattan performance test |
| CN112782013B (en) * | 2020-12-29 | 2022-03-25 | 南京林业大学 | Fatigue stretching device for rattan performance test |
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