CN104218720A - Motor running shake prevention structure - Google Patents
Motor running shake prevention structure Download PDFInfo
- Publication number
- CN104218720A CN104218720A CN201410480866.7A CN201410480866A CN104218720A CN 104218720 A CN104218720 A CN 104218720A CN 201410480866 A CN201410480866 A CN 201410480866A CN 104218720 A CN104218720 A CN 104218720A
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- motor
- bearing
- shake prevention
- hole
- prevention structure
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Abstract
The invention discloses a motor running shake prevention structure. Specifically, the motor running shake prevention structure is used to prevent a motor from shaking due to impact and friction between the outer ring of a bearing of the motor and the inner side face of a bearing seat of the bearing, caused by machining tolerance and form and location deviation when the motor is under running status. The motor running shake prevention structure comprises a motor housing, wherein end covers are arranged at two ends of the motor housing, a round pit matched with the bearing is formed in the center of the inner side face of each end cover, a press cover covers the opening portion of each round pit, shaft holes matched with a rotator shaft are respectively formed in the pit bottoms of the round pits and the centers of the end covers, the bearing is installed in the shaft holes, and the ends of the rotator shaft sequentially pass through the shaft holes in the end covers, the bearing and the shaft holes in the pit bottoms of the round pits, and then respectively stretch out of the corresponding end covers. The motor running shake prevention structure is characterized in that circumferential grooves are formed in the inner side faces of the pit walls of the round pits, and elastic shake prevention rings are arranged in the circumferential grooves. By using the motor running shake prevention structure, shakes and noise which are generated during the running process of the motor can be avoided, and use life of the motor is prolonged.
Description
Technical field
The present invention relates to a kind of aseismatic mechanism.Specifically, be by machining tolerance and shape position error, motor to be produced between its bearing outer ring and bearing pedestal medial surface under running status clash into and friction and the aseismatic mechanism of vibrations for preventing.
Background technology
As everyone knows, the appearance of motor is long-standing, and it has been widely used in all trades and professions as actuating unit.Motor wherein has a housing, housing two ends are provided with for pushing down the end cap of bearing, rubbing surface of end cover center is all processed with for the circular pit with bearing fit, the oral area of circular pit all has gland, all there is the axis hole coordinating with armature spindle at the bottom of described hole and gland center, in axis hole, have bearing, described armature spindle end is successively by stretching out outside corresponding end cap after the axis hole at the bottom of the axis hole on gland, bearing and hole.The motor application of said structure in horizontal occasion be its armature spindle be the level of state fashion can, once the motor of this structure is to vertical installation, when being applied on elevator or staircase, after the stator energising due to motor, can produce magnetic field, have the effect of magnetic pull.Add the tolerance and the shape position error that in support, the bearing pedestal on front and rear cover and the rotor axis of electric course of processing of motor, produce, and the play that exists of bearing enclose, make between armature spindle and bearing inner race, produce between the hole wall of bearing outer ring and circular pit and clash into and rub.Meanwhile, at energising running rotor, can be subject to the electromagnet pull of stator, cause armature spindle to have axial displacement and produce.All above-mentioned factors, not only can make motor produce vibrations and noise, also can shorten the useful life of motor.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of motor operation aseismatic mechanism.Adopt this aseismatic mechanism, in the time of can avoiding motor operation, produce vibrations and noise, extend the useful life of motor.
The problems referred to above that the present invention will solve are realized by following technical scheme:
Motor operation aseismatic mechanism of the present invention comprises electric machine casing, there is end cap at electric machine casing two ends, rubbing surface of end cover center is useful on the circular pit with bearing fit, the oral area of circular pit has gland, all there is the axis hole coordinating with armature spindle at the bottom of described hole and gland center, in axis hole, have bearing, described armature spindle end is successively by stretching out outside corresponding end cap after the axis hole at the bottom of the axis hole on gland, bearing and hole.Be characterized in there is circumferential recess on the hole wall medial surface of described circular pit, flexible bump protection ring in circumferential recess.
Wherein, described elasticity bump protection ring is indeformable rubber ring under 120 degrees Celsius.
The width of described circumferential recess is greater than the diameter of section of elasticity bump protection ring, and the diameter of elasticity bump protection ring is greater than the degree of depth of circumferential recess.
Under non-compressed state, the diameter of described elasticity bump protection ring is than the large 0.1 ~ 0.2mm of the degree of depth of circumferential recess.
Further improvement of the present invention scheme is at the bottom of the hole of described circular pit and between bearing, to have stiffness spring pad.The unilateral along the circumferential direction undulate of described stiffness spring pad.
Wherein, described stiffness spring pad is spring steel pad.
Take such scheme, there is following problem:
As can be seen from the above scheme, on the hole wall medial surface due to described circular pit, be processed with circumferential recess, elasticity bump protection ring is installed in circumferential recess, this elasticity bump protection ring is indeformable rubber ring under 120 degrees Celsius.Under 120 degrees Celsius, can not be out of shape, aging, while having avoided motor operation between armature spindle and bearing inner race, between the hole wall of bearing outer ring and circular pit, produce and clash into and rub, not only effectively reduce motor vibrations and the noise in when operation, and extended the useful life of motor.Again owing to being provided with stiffness spring pad at the bottom of the hole of described circular pit and between bearing, axial endplay that axial magnetic pull that motor is subject in running causes and shake meeting are weakened by the elastic deformation of stiffness spring pad, thereby further reduced vibrations and noise when motor moves, extended the useful life of motor.
Accompanying drawing explanation
Fig. 1 is motor operation aseismatic mechanism schematic diagram of the present invention;
Fig. 2 is the I point enlarged diagram of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, motor operation aseismatic mechanism of the present invention comprises electric machine casing 1, described electric machine casing 1 is cylindric, its two ends are provided with end cap 6, end cap 6 medial surface centers are processed with the circular pit for coordinating with bearing 3, the oral area of circular pit is fixed with gland 7, and at the bottom of described hole and gland 7 centers are all processed with the axis hole coordinating with armature spindle 5, and bearing 3 is installed in axis hole.Described armature spindle 5 ends are successively by stretching out outside corresponding end cap 6 after the axis hole on gland 7, bearing 3 and the axis hole at the end, hole.For avoid motor when operation because of friction, clash into and produce vibrations and noise, extend the useful life of motor, on the wall medial surface of the hole of described circular pit, be processed with circumferential recess, in circumferential recess, be embedded with elasticity bump protection ring 2.Described elasticity bump protection ring 2 is indeformable rubber rings under 120 degrees Celsius.
Wherein, the width of described circumferential recess is greater than the diameter of section of elasticity bump protection ring 2, and the diameter of elasticity bump protection ring 2 is greater than the degree of depth of circumferential recess.
Under non-compressed state, the diameter of described elasticity bump protection ring 2 is than the large 0.1 ~ 0.2mm of the degree of depth of circumferential recess.
For further avoid motor when operation because of friction, clash into and produce vibrations and noise, extend the useful life of motor, at the bottom of the hole of described circular pit and 3, bearing be provided with stiffness spring pad 4.This stiffness spring pad is spring steel pad, its unilateral along the circumferential direction undulate.
Claims (7)
1. motor moves aseismatic mechanism, comprise electric machine casing (1), there is end cap (6) at electric machine casing (1) two ends, end cap (6) medial surface center is useful on the circular pit with bearing fit, the oral area of circular pit has gland (7), all there is the axis hole coordinating with armature spindle (5) at the bottom of described hole and gland (7) center, in axis hole, have bearing (3), described armature spindle (5) end is successively by stretching out outside corresponding end cap (6) after the axis hole on gland (7), bearing (3) and the axis hole at the end, hole; It is characterized in that there is circumferential recess on the hole wall medial surface of described circular pit, flexible bump protection ring (2) in circumferential recess.
2. motor operation aseismatic mechanism according to claim 1, is characterized in that described elasticity bump protection ring (2) is indeformable rubber ring under 120 degrees Celsius.
3. motor operation aseismatic mechanism according to claim 1, it is characterized in that the width of described circumferential recess is greater than the diameter of section of elasticity bump protection ring (2), and the diameter of elasticity bump protection ring (2) is greater than the degree of depth of circumferential recess.
4. motor operation aseismatic mechanism according to claim 3, is characterized in that under non-compressed state, and the diameter of described elasticity bump protection ring (2) is than the large 0.1 ~ 0.2mm of the degree of depth of circumferential recess.
5. according to the motor operation aseismatic mechanism described in any one in claim 1 ~ 4, at the bottom of it is characterized in that the hole of described circular pit and have stiffness spring pad (4) between bearing.
6. motor according to claim 5 moves aseismatic mechanism, it is characterized in that the unilateral along the circumferential direction undulate of described stiffness spring pad (4).
7. motor operation aseismatic mechanism according to claim 6, is characterized in that described stiffness spring pad (4) is spring steel pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480866.7A CN104218720A (en) | 2014-09-19 | 2014-09-19 | Motor running shake prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480866.7A CN104218720A (en) | 2014-09-19 | 2014-09-19 | Motor running shake prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104218720A true CN104218720A (en) | 2014-12-17 |
Family
ID=52099944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410480866.7A Pending CN104218720A (en) | 2014-09-19 | 2014-09-19 | Motor running shake prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104218720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394943A (en) * | 2017-08-30 | 2017-11-24 | 广东威灵电机制造有限公司 | Motor and its bearing block mounting assembly |
-
2014
- 2014-09-19 CN CN201410480866.7A patent/CN104218720A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394943A (en) * | 2017-08-30 | 2017-11-24 | 广东威灵电机制造有限公司 | Motor and its bearing block mounting assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |