CN207514134U - A kind of extension spring - Google Patents
A kind of extension spring Download PDFInfo
- Publication number
- CN207514134U CN207514134U CN201721633056.6U CN201721633056U CN207514134U CN 207514134 U CN207514134 U CN 207514134U CN 201721633056 U CN201721633056 U CN 201721633056U CN 207514134 U CN207514134 U CN 207514134U
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- China
- Prior art keywords
- spring
- shackle
- extension spring
- connector
- spring body
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Abstract
A kind of extension spring, including spring body（1）；Respectively with spring body（1）The connector of both ends connection（2）；With connector（2）Far from spring body（1）Hold the shackle of connection（3）；Spring body（1）The spring silk at both ends is respectively wound around connector（2）Outer surface on.Technical solution provided by the utility model, the shackle of extension spring（3）And spring body（1）Between connected by connector, shackle（3）It is made using machining mode, shackle（3）It no longer needs to be formed by curved pressure processing, because bending and distorting stress may be not present, the service life of extension spring is greatly improved.When spring and rotary shaft or swinging axle are connected, shackle（3）Various tolerance fit dimensions can be processed into, it also can be in shackle（3）Install bearing additional（5）, shackle and institute's shaft coupling disengaging or sliding are effectively prevent, has expanded the application field of extension spring.
Description
Technical field
The utility model is related to spring technical field, more particularly, to a kind of extension spring.
Background technology
Spring is a kind of using the elastic machine components come work, is generally made of spring steel, for the fortune of control machinery
It is dynamic, mitigate impact or vibration, storage or saving energy, measuring force size etc., be widely used in machine, instrument.Wherein, extension spring
Also tension spring is, is subject to the helical spring of axial tension, it is general between the circle and circle of extension spring when being not subject to load
All it is and tight very close to each other.
CN201310591Y disclosed a kind of extension spring on 16th in September in 2009, including deforming ontology, and in the deformation
Ontology both ends are bent outwardly respectively is extended with crotch, and the deformation ontology is in the shape of a spiral, and with multiple spiral circle bodies.
CN 206495927U disclosed a kind of extension spring on 09 15th, 2017.Including made of spring steel wire
Spring body, the both ends of the spring body have been wholely set suspension hook, and the suspension hook described in both sides is with the center of the spring body
Point is centrosymmetric, and the suspension hook includes the connecting portion for connecting spring ontology, the mounting portion being connected on connecting portion, institute
It states mounting portion and is more than 1 circle and less than the helical form of 2 circles in the number of turns, the screw pitch of the mounting portion is less than the radius of spring steel wire, institute
Connecting portion is stated for connecting the bending that the part of the mounting portion is in the curving for being directed away from the mounting portion.
The fatigue fracture of extension spring often originates from the region of high stress of extension spring, shackle and the spring sheet of extension spring
The connecting portion of body because there is bending and torsion, forms the region of high stress, even if the pulling force in the course of work suffered by spring exists
In elastic range, but since there are the regions of high stress, also reach the time limit in service life far away in spring body, spring is caused due to shackle is broken
Failure.In the prior art, extension spring shackle is broken in order to prevent, and people devise a variety of different hook loop structures, however hook
Ring is mostly to be bent by circular spring material, and the stress of shackle can only be reduced from structure, and cannot eliminate the stress of shackle,
Thus shackle fracture is still the main reason for leading to spring failure.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of extension spring that shackle can effectively be overcome to be broken.
In order to solve the above-mentioned technical problem, the utility model provides a kind of extension spring, it includes spring body；Respectively with
The connector of the spring body both ends connection；The shackle being connect with the connector far from spring body end；The spring sheet
The spring silk at body both ends is respectively wound around on the outer surface of the connector.
As optimal technical scheme, extension spring provided by the utility model, the connector has conical section, the bullet
The spring silk at spring ontology both ends is tapered to be wrapped on the conical section.
As optimal technical scheme, extension spring provided by the utility model, the connector has cylindrical section, described
The outer surface of cylindrical section is equipped with groove, and the spring silk at the spring body both ends is wrapped in the groove.
As technical solution, extension spring provided by the utility model is further improved, the shackle is completely enclosed
Annular shackle.
As being further improved technical solution, extension spring provided by the utility model, also have at least with one of them
The bearing of the inner ring connection of shackle.
As being further improved technical solution, extension spring provided by the utility model, at least one of which shackle it is interior
For being connect with axial workpiece, shape and size match circle with axial workpiece.
In the absence of conflict, above-mentioned improvement or preferred embodiment can be implemented alone or in combination.
Technical solution provided by the utility model is connected between the shackle and spring body of extension spring by connector,
Shackle can be used machining mode and be made, and shackle no longer needs to be formed by curved pressure processing, should because bending and torsion may be not present
Power, the service life of extension spring are greatly improved.
When spring and rotary shaft or swinging axle are connected, shackle can be processed into various tolerance fit dimensions, also can be in shackle
It installs bearing additional, effectively prevent shackle and institute's shaft coupling disengaging or sliding, expanded the application field of extension spring.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and forms the part of the application, the utility model
Illustrative embodiments and their description do not form the improper restriction to the utility model for explaining the utility model.In attached drawing
In：
Fig. 1 is the principle schematic diagram of one extension spring of embodiment；
Fig. 2 is the principle schematic diagram of two extension spring of embodiment；
Fig. 3 is the principle schematic diagram of the taper connection body of extension spring in embodiment；
Fig. 4 is the principle schematic diagram of the cylindricality connector of extension spring in embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment one, extension spring as shown in figures 1 and 3 include spring body 1, connect respectively with 1 both ends of spring body
The connector 2 connect, the shackle 3 being connect with connector 2 far from 1 end of spring body, connector 2 have conical section, 1 liang of spring body
The spring silk at end is tapered to be wrapped on the outer surface of conical section.
Embodiment two, extension spring as shown in Figure 2 and Figure 4 include spring body 1, connect respectively with 1 both ends of spring body
The connector 2 connect, the shackle 3 being connect with connector 2 far from 1 end of spring body, connector 2 has cylindrical section, in cylindrical section
Outer surface is equipped with groove 4, and the spring silk at 1 both ends of spring body is wrapped in groove 4.
Traditional shackle is bent using coil component spring steel, reversed, and also needs to remain the function similar to spring, such as spring
During stretching, shackle can also deform elongation, and when no more than elastic limit, pulling force disappears, and shackle restores to the original state, and exists after forming
Bending and distorting stress.It is connected between the shackle 3 of extension spring and spring body 1 by connector in embodiment, shackle 3 can be adopted
It is made with machining mode, shackle 3 no longer needs to be formed by curved pressure processing, because bending and distorting stress may be not present, stretches
The service life of spring is greatly improved.
Optionally, extension spring provided by the utility model, shackle 3 are completely enclosed annular shackle.
Optionally, extension spring provided by the utility model also there is the inner ring at least with one of shackle 3 to connect
Bearing 5.
Optionally, extension spring provided by the utility model, the inner ring of at least one of which shackle 3 are used for and axis class zero
Part connects, and shape and size are matched with axial workpiece.
Extension spring provided by the utility model, because having shackle 3, when spring is connected with rotary shaft or swinging axle,
Shackle 3 can be processed into various tolerance fit dimensions, also can install bearing additional in shackle 3, effectively prevent shackle 3 be detached from institute shaft coupling or
Sliding, has expanded the application field of extension spring.
The utility model is not limited to more than preferred embodiment, can also be limited in the utility model claims and specification
Spirit in, carry out the transformation and improvement of diversified forms, can solve the technical issues of similary, and technique effect expected from obtaining,
Therefore it does not repeat.Those of ordinary skill in the art can from the utility model disclosure directly or all schemes for associating,
As long as within the spirit limited in claim, the scope of protection of the utility model is also belonged to.
Claims (6)
1. a kind of extension spring, which is characterized in that including spring body（1）；Respectively with the spring body（1）Both ends connection
Connector（2）；With the connector（2）Far from spring body（1）Hold the shackle of connection（3）；The spring body（1）Both ends
Spring silk be respectively wound around the connector（2）Outer surface on.
2. extension spring according to claim 1, which is characterized in that the connector（2）With conical section, the spring
Ontology（1）The spring silk at both ends is tapered to be wrapped on the conical section.
3. extension spring according to claim 1, which is characterized in that the connector（2）With cylindrical section, in the circle
The outer surface of shell of column is equipped with groove（4）, the spring body（1）The spring silk at both ends is wrapped in the groove（4）It is interior.
4. extension spring according to claim 1, which is characterized in that the shackle（3）For completely enclosed annular shackle.
5. extension spring according to claim 1, which is characterized in that also have at least with one of shackle（3）It is interior
Enclose the bearing of connection（5）.
6. extension spring according to claim 1, which is characterized in that at least one of which shackle（3）Inner ring be used for
Axial workpiece connects, and shape and size are matched with axial workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721633056.6U CN207514134U (en) | 2017-11-30 | 2017-11-30 | A kind of extension spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721633056.6U CN207514134U (en) | 2017-11-30 | 2017-11-30 | A kind of extension spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514134U true CN207514134U (en) | 2018-06-19 |
Family
ID=62542118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721633056.6U Active CN207514134U (en) | 2017-11-30 | 2017-11-30 | A kind of extension spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514134U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980241A (en) * | 2018-10-09 | 2018-12-11 | 扬州飞天弹簧有限公司 | A kind of spring and its manufacturing method of plasticity_resistant deformation |
-
2017
- 2017-11-30 CN CN201721633056.6U patent/CN207514134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980241A (en) * | 2018-10-09 | 2018-12-11 | 扬州飞天弹簧有限公司 | A kind of spring and its manufacturing method of plasticity_resistant deformation |
| CN108980241B (en) * | 2018-10-09 | 2023-11-10 | 扬州飞天弹簧有限公司 | Spring resistant to plastic deformation and manufacturing method thereof |
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