CN101819110A - Tensile testing equipment of trampoline tension spring - Google Patents
Tensile testing equipment of trampoline tension spring Download PDFInfo
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- CN101819110A CN101819110A CN200910252298A CN200910252298A CN101819110A CN 101819110 A CN101819110 A CN 101819110A CN 200910252298 A CN200910252298 A CN 200910252298A CN 200910252298 A CN200910252298 A CN 200910252298A CN 101819110 A CN101819110 A CN 101819110A
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- stay cord
- tension spring
- stand
- pulling rope
- testing equipment
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Abstract
The invention relates to tensile testing equipment of a trampoline tension spring, comprising a stand, wherein both ends on the upper part of the stand are respectively provided with a fixing ring and a fixed pulley set; the side surface at one end of the stand is provided with a reversing pulley, and the lower part of the stand is provided with a pulling rope winding device; a tensile force display is fixed on the fixing rings; and pulling ropes on the fixed pulley set sequentially round a moving pulley set arranged on the stand and the reversing pulley on the side surface at one end of the stand and is connected with the pulling rope winding device on the lower part of the stand. During testing, a tension spring sample is hung between the tensile force display and the moving pulley, and a rocking handle is rotated to drive the pulling rope to rotate; the pulling rope is stressed and wound on a pulling rope shaft; the moving pulley set pulls the tension spring to extend until reaching a specific length; the value of the tensile force display is read; then the rocking handle is released, and under the action of a ratchet wheel, the rocking handle and the pulling rope shaft cannot reverse; when the tension spring needs to be released back, a pawl is lifted, and a whole dynamic system can retract under the action of the restoring force of the tension spring; and the tension spring sample is removed to change another tension spring sample.
Description
Technical field
The present invention relates to a kind of athletic sports appliance testing equipment, especially a kind of energy and labour saving formula trampoline tension spring testing equipment.
Background technology
On the trampoline around the wire side and between the framework device many extension springs are arranged, these extension springs must guarantee that all enough elastic performances are arranged in certain range of stretch, and must guarantee to have only elastic deformation and do not have a bit plastic yield, so just need carry out tension test, to guarantee to reach above-mentioned requirements to extension spring times over spring body natural length.Otherwise, in sportsman's use, will cause wire side decline, elasticity deficiency, more seriously wire side might contact to earth when the sportsman does big-movement, causes the injury fearful to the sportsman.Therefore, for the detection of trampoline tension spring to guarantee the extension spring quality particular importance that seems.But, because the singularity of the detection of trampoline tension spring does not have special-purpose checkout equipment at present on market, put up with substituting with common checkout equipment, not only take a lot of work but also require great effort, it is also undesirable to detect effect.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, provide a kind of speciality in the energy and labour saving formula that detects trampoline spring tensile property, easy and simple to handle, detect tensile testing equipment of trampoline tension spring satisfactory for result.
For achieving the above object, the present invention adopts following technical proposals:
A kind of tensile testing equipment of trampoline tension spring, comprise frame, described upper rack two ends are respectively equipped with set collar and fixed pulley group, one end side surface of frame is provided with angle pulley, frame lower is provided with the stay cord wind, be fixed with the pulling force display on the set collar, the stay cord on the fixed pulley group is connected with the stay cord wind of frame lower after walking around angle pulley on the running block be located on the frame and frame one end side surface successively.
Described fixed pulley group is composed in parallel by at least two coaxial pulleys.
Described running block is composed in parallel by at least two coaxial travelling block.
Described stay cord wind comprises the stay cord axle sleeve that is fixed in frame lower, is installed with the stay cord axle in the stay cord axle sleeve, and the stay cord axle of stay cord axle sleeve one side is provided with two baffle plates that spacing is arranged, and fixedlys connected with an end of stay cord on the tensile axis between two baffle plates; Be provided with ratchet and rocking handle successively on the stay cord axle of stretching axle sleeve opposite side; Tensile axis puts and is provided with pawl axis corresponding with ratchet and ratchet.
During test, the extension spring sample is hung between pulling force display and the travelling block, rotation crank then; rocking handle drives the stay cord axle and rotates; stay cord is stressed winding on the stay cord axle; in the stay cord winding process, to moving, running block pulling extension spring is stretched to till the length of regulation the pulling running block to the fixed pulley prescription.At this moment, read the numerical value of pulling force display, this numerical value is the value of thrust of extension spring.When reading numerical values, rocking handle can be let go, rocking handle and stay cord axle can not reverse under the effect of ratchet.When needs during with the extension spring playback, ratchet is lifted, ratchet is unfettered, and whole dynamic system will bounce back under the effect of extension spring restoring force, be the reversing of stay cord axle, the running block travelling backwards, stay cord is Hui Song thereupon, pine gets back to certain degree, the extension spring sample can be extractd, and changes next extension spring sample.
Advantages such as the present invention has rapid operation and easy, is convenient to observe and changes by test agent, and test efficiency is high and energy-conservation.
Description of drawings
Fig. 1 is a vertical view of the present invention;
Fig. 2 is an outboard profile of the present invention;
Fig. 3 is the local figure of A-A among Fig. 2.
Wherein: 1, set collar, 2, the pulling force display, 3, the extension spring sample, 4, running block, 5, frame, 6, stay cord, 7, the fixed pulley group, 8, angle pulley, 9, rocking handle, 10, ratchet, 11, pawl axis, 12, ratchet, 13, the stay cord axle sleeve, 14, the stay cord axle, 15. baffle plates.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Among Fig. 1-3, frame 5 both upper ends thereof are respectively equipped with set collar 1 and fixed pulley group 7, one end side surface of frame 5 is provided with angle pulley 8, frame 5 bottoms are provided with the stay cord wind, be fixed with pulling force display 2 on the set collar 1, the stay cord 6 on the fixed pulley group 7 is walked around the running block 4 be located on the frame 5 successively and is connected with the stay cord wind of frame 5 bottoms with angle pulley 8 backs on frame 5 one end side surface.
Fixed pulley group 7 and running block 4 compose in parallel by two coaxial pulleys.
Described stay cord wind comprises the stay cord axle sleeve 13 that is fixed in frame 5 bottoms, be installed with stay cord axle 14 in the stay cord axle sleeve 13, the stay cord axle 14 of stay cord axle sleeve 13 1 sides is provided with two baffle plates 15 that spacing is arranged, and fixedlys connected with an end of stay cord 6 on the tensile axis 14 between two baffle plates 15; Be provided with ratchet 12 and rocking handle 9 on the stay cord axle 14 of stretching axle sleeve 13 opposite sides successively; Stretching axle sleeve 13 is provided with pawl axis 11 and the ratchet 10 corresponding with ratchet 12.
There is stay cord 6 () to come and go the pulley of walking around two pulley blockss according to certain rules between running block 4 and the fixed pulley group 7; One end of stay cord 6 is fixed on the travelling block, come and go then walk around fixed pulley after, walk around angle pulley 8 through stay cord axles 14 again, promptly the other end of stay cord 6 is fixed on the stay cord axle 14;
Stay cord axle 14 1 ends are equipped with rocking handle 9, stay cord axle 14 is equipped with ratchet 12 again near rocking handle 9 places, stay cord axle 14 middle parts make stay cord axle 14 invariant positions by 13 constraints of stay cord axle sleeve and can only rotate another section fixed pulling rope 6 of stay cord axle 14 and the usefulness of making to twine stay cord 6 around self axle center.
Use pulley blocks to reach the labour-saving purpose; Use angle pulley 8 that stay cord 6 is guided into and be convenient to the position that the operator observes pulling force numerical value, changes extension spring sample 3; Use ratchet 12, ratchet 10 to avoid stay cord 6 freely to return and remove, make it be subjected to operator's control.
During test, extension spring sample 3 is hung between pulling force display 2 and the running block 4, rotation crank 9 then; rocking handle 9 drives stay cord axle 14 and rotates; stay cord 6 is stressed winding on stay cord axle 16; in stay cord 6 winding processes, and pulling running block 4 moves to fixed pulley group 7 directions, and running block 4 pulling extension spring samples 3 are stretched to till the length of regulation.At this moment, read the numerical value of pulling force display 2, this numerical value is the value of thrust of extension spring sample 3.When reading numerical values, rocking handle 9 can be let go, rocking handle 9 and stay cord axle 14 can not reverse under the effect of ratchet 12.When needs during with 3 playback of extension spring sample, ratchet 11 is lifted, ratchet 12 is unfettered, whole dynamic system will bounce back under the effect of extension spring sample 3 restoring forces, i.e. stay cord axle 14 reversings, running block 4 travelling backwards, stay cord 6 is Hui Song thereupon, pine gets back to certain degree, extension spring sample 3 can be extractd, and changes next extension spring sample 3.
Claims (4)
1. tensile testing equipment of trampoline tension spring, it is characterized in that: comprise frame, described upper rack two ends are respectively equipped with set collar and fixed pulley group, one end side surface of frame is provided with angle pulley, frame lower is provided with the stay cord wind, be fixed with the pulling force display on the set collar, the stay cord on the fixed pulley group is connected with the stay cord wind of frame lower after walking around angle pulley on the running block be located on the frame and frame one end side surface successively.
2. tensile testing equipment of trampoline tension spring according to claim 1 is characterized in that: described fixed pulley group is composed in parallel by at least two coaxial pulleys.
3. tensile testing equipment of trampoline tension spring according to claim 1 is characterized in that: described running block is composed in parallel by at least two coaxial pulleys.
4. tensile testing equipment of trampoline tension spring according to claim 1, it is characterized in that: described stay cord wind comprises the stay cord axle sleeve that is fixed in frame lower, be installed with the stay cord axle in the stay cord axle sleeve, the stay cord axle of stay cord axle sleeve one side is provided with two baffle plates that spacing is arranged, and fixedlys connected with an end of stay cord on the tensile axis between two baffle plates; Be provided with ratchet and rocking handle successively on the stay cord axle of stretching axle sleeve opposite side; Tensile axis puts and is provided with pawl axis corresponding with ratchet and ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102522984A CN101819110B (en) | 2009-12-01 | 2009-12-01 | Tensile testing equipment of trampoline tension spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102522984A CN101819110B (en) | 2009-12-01 | 2009-12-01 | Tensile testing equipment of trampoline tension spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101819110A true CN101819110A (en) | 2010-09-01 |
| CN101819110B CN101819110B (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102522984A Active CN101819110B (en) | 2009-12-01 | 2009-12-01 | Tensile testing equipment of trampoline tension spring |
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| Country | Link |
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| CN (1) | CN101819110B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616177A (en) * | 2013-12-18 | 2014-03-05 | 国家电网公司 | Portable mechanical property detection device |
| CN106644714A (en) * | 2016-11-29 | 2017-05-10 | 中船华南船舶机械有限公司 | Heavy-load testing device |
| CN109959574A (en) * | 2019-03-21 | 2019-07-02 | 上海海事大学 | A kind of small-sized multi-state rope abrasion tester and working method |
-
2009
- 2009-12-01 CN CN2009102522984A patent/CN101819110B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616177A (en) * | 2013-12-18 | 2014-03-05 | 国家电网公司 | Portable mechanical property detection device |
| CN106644714A (en) * | 2016-11-29 | 2017-05-10 | 中船华南船舶机械有限公司 | Heavy-load testing device |
| CN109959574A (en) * | 2019-03-21 | 2019-07-02 | 上海海事大学 | A kind of small-sized multi-state rope abrasion tester and working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101819110B (en) | 2011-12-07 |
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