CN210693660U - Novel clamp spring applied to fixation of rotor shaft of externally-rotating brushless motor - Google Patents
Novel clamp spring applied to fixation of rotor shaft of externally-rotating brushless motor Download PDFInfo
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- CN210693660U CN210693660U CN201921949207.8U CN201921949207U CN210693660U CN 210693660 U CN210693660 U CN 210693660U CN 201921949207 U CN201921949207 U CN 201921949207U CN 210693660 U CN210693660 U CN 210693660U
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- hole site
- jump ring
- spacing portion
- foot position
- rotor shaft
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Abstract
The utility model discloses a novel be applied to outer fixed jump ring of brushless motor rotor shaft that rotates, including the jump ring body, the jump ring body is narrow structure under wide, the jump ring body has set gradually first hole site and the second hole site of opening from top to bottom, junction between first hole site and the second hole site is provided with the first spacing portion of inside bellied and the spacing portion of second, the bottom of second hole site both sides is provided with first foot position and second foot position respectively, just first spacing portion and the spacing portion of second, first foot position and second foot position are all not on the coplanar. The utility model is simple in operation, stability is high, rational in infrastructure, can effectively reduce the hidden danger that the drunkenness of motor during operation fixed slot and base brought for the motor overall stable operation, has solved current ordinary jump ring stability not high, life weak point scheduling problem, possess good application prospect.
Description
Technical Field
The utility model relates to a fastener technical field, concretely relates to novel be applied to fixed jump ring of abversion brushless motor rotor shaft.
Background
The snap spring is also called a retainer ring or a snap ring, belongs to one type of fastener, is arranged in a shaft groove or a hole groove of a machine or equipment and plays a role of preventing parts on a shaft or a hole from moving axially, wherein the snap spring for the shaft is arranged (fixed) on the shaft, and the snap spring for the hole is arranged on the hole.
At present, in the snap spring widely used by people, the structure is single, the function is more single, and the traditional snap spring generally has the following defects:
1. can have certain tolerance space on centraxonial draw-in groove of electric motor rotor and the motor base, electric motor rotor can produce upwards or decurrent centrifugal force when work in the middle of, makes the motor shaft drunkenness in the tolerance space, influences the work efficiency and the life-span of motor, and prior art's jump ring fails to solve above-mentioned problem.
2. The centrifugal force that the electric motor rotor during operation produced can lead to ordinary jump ring to warp and loosen, leads to the life of jump ring short.
Disclosure of Invention
To above technical defect, the utility model aims to solve the current ordinary jump ring stability scheduling problem that is not high, life is short, provide a simple operation, stability is high, rational in infrastructure neotype be applied to the jump ring that the brushless motor rotor shaft was fixed of abversion, effectively reduce the hidden danger that the drunkenness of motor during operation fixed slot and base brought for the motor overall stable operation.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a novel be applied to fixed jump ring of outer brushless motor rotor shaft that rotates, includes the jump ring body, its characterized in that: the jump ring body has set gradually first hole site and the second hole site that open side down from top to bottom, junction between first hole site and the second hole site is provided with the first spacing portion of inside bellied and the spacing portion of second, the bottom of second hole site both sides is provided with first foot position and second foot position respectively, just first spacing portion and the spacing portion of second, first foot position and second foot position are all not on the coplanar.
Specifically, the first hole site is larger than the second hole site.
Specifically, the circle centers of the first hole site and the second hole site are on the same axis.
The utility model discloses the beneficial effect who creates lies in:
1. the utility model discloses the jump ring has added the technology of bending when the punching press is tailor in during manufacturing, buckles the deformation to the jump ring left and right sides and handles for junction between first hole site and the second hole site forms the first spacing portion of inside bellied and the spacing portion of second, and first spacing portion and the spacing portion of second are not on the coplanar. When the clamp spring is used, the first hole position card is in the fixed slot of the motor rotor shaft to this fixed motor rotor shaft and base, first spacing portion and second spacing portion form the structure of staggering each other owing to not being in the coplanar, can let the motor rotor shaft rotate when improving fixed effect again, and this clamp spring is in the state of straining after the assembly in addition, can offset the deformation that centrifugal force brought and become flexible, can effectively fix motor rotor shaft and base.
2. Because there will be certain tolerance in the middle of fixed slot and the base bottom surface, when using traditional jump ring, if too big motor rotor axle of tolerance can be in the activity of radial direction, the drunkenness can take place when the motor rotates, can bring the shake, influences output efficiency and equipment life. The utility model discloses the jump ring withstands base and fixed slot according to the memory characteristic of metal, between first spacing portion and the spacing portion of second and produce the mutually exclusive power between first foot position and the second foot position, for traditional jump ring, there is better fixed action, can effectively reduce the hidden danger that the motor bulk stability operation brought for the drunkenness of motor during operation fixed slot and base, and process stability is higher, and is rational in infrastructure, long service life has improved work efficiency greatly, is favorable to popularization and application in the production.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a front view of the clamp spring of the present invention.
Part names and serial numbers in the drawings:
1-a first hole position, 2-a first limit part, 3-a second limit part, 4-a second hole position, 5-a first pin position and 6-a second pin position.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Example 1
Referring to the attached drawing 1, a novel clamp spring applied to fixing a rotor shaft of an externally rotating brushless motor comprises a clamp spring body, wherein the clamp spring body is of a structure with a wide upper part and a narrow lower part, the clamp spring body is sequentially provided with a first hole site 1 and a second hole site 4 from top to bottom, the circle centers of the first hole site 1 and the second hole site 4 are on the same axis, and the first hole site 1 is larger than the second hole site 4; the junction between first hole site 1 and the second hole site 4 is provided with spacing portion 2 of inside bellied first and the spacing portion 3 of second, and the bottom of 4 both sides of second hole site is provided with first foot position 5 and second foot position 6 respectively, and first spacing portion 2 and the spacing portion 3 of second, first foot position 5 and second foot position 6 are all not on the coplanar.
The utility model discloses embodiment 1's theory of operation as follows:
when the motor rotor shaft fixing device is installed, the first hole site 1 of the clamp spring is installed in a fixing groove of the motor rotor shaft in a sleeved mode, the first limiting part 2 and the second limiting part 3 which are protruded inwards and are not on the same plane are formed at the connecting position between the first hole site 1 and the second hole site 4, and due to the staggered structure of the first limiting part 1 and the second limiting part 3, the motor rotor shaft and the base can be fixed, the fixing effect is improved, the motor rotor shaft can rotate, and deformation and looseness of the clamp spring during working can be prevented; and the two feet generate upper and lower mutual repulsion force due to the memory characteristic of metal, so that the clamp spring plays a better role in fixing, the rotor shaft is tightly fixed on the motor base, the deformation and looseness caused by centrifugal force are counteracted, and the problem that the motor shaft moves in a tolerance space due to the fact that an upward or downward centrifugal force is generated when the motor rotor works is solved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a novel be applied to fixed jump ring of outer brushless motor rotor shaft that rotates, includes the jump ring body, the jump ring body is narrow structure under wide, its characterized in that: the jump ring body has set gradually first hole site (1) and second hole site (4) that open side down from top to bottom, junction between first hole site (1) and second hole site (4) is provided with spacing portion of inside bellied first (2) and the spacing portion of second (3), the bottom of second hole site both sides is provided with first foot position (5) and second foot position (6) respectively, just first spacing portion (2) and the spacing portion of second (3), first foot position (5) and second foot position (6) are all not on the coplanar.
2. The novel clamp spring applied to fixing the rotor shaft of the external brushless motor according to claim 1, wherein: the first hole site (1) is larger than the second hole site (4).
3. The novel clamp spring applied to fixing the rotor shaft of the external brushless motor according to claim 1, wherein: the circle centers of the first hole site (1) and the second hole site (4) are on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949207.8U CN210693660U (en) | 2019-11-13 | 2019-11-13 | Novel clamp spring applied to fixation of rotor shaft of externally-rotating brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949207.8U CN210693660U (en) | 2019-11-13 | 2019-11-13 | Novel clamp spring applied to fixation of rotor shaft of externally-rotating brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210693660U true CN210693660U (en) | 2020-06-05 |
Family
ID=70886366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921949207.8U Active CN210693660U (en) | 2019-11-13 | 2019-11-13 | Novel clamp spring applied to fixation of rotor shaft of externally-rotating brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210693660U (en) |
-
2019
- 2019-11-13 CN CN201921949207.8U patent/CN210693660U/en active Active
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