CN111740538B - Locating part of high-speed motor bearing - Google Patents
Locating part of high-speed motor bearing Download PDFInfo
- Publication number
- CN111740538B CN111740538B CN202010756165.7A CN202010756165A CN111740538B CN 111740538 B CN111740538 B CN 111740538B CN 202010756165 A CN202010756165 A CN 202010756165A CN 111740538 B CN111740538 B CN 111740538B
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- clamping
- sliding groove
- bearing
- counterweight
- buckling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention relates to the technical field of motors, in particular to a limiting piece of a high-speed motor bearing, which comprises: the clamping part is of an annular structure made of elastic materials, an opening is formed in the right side of the clamping part, the radius of the clamping part is slightly smaller than that of a motor shaft, clamp holes are formed in the two ends, close to the opening, of the clamping part respectively, rectangular sliding grooves are formed in the outer peripheral surface of the bearing limiting part and penetrate through one of the clamp holes, and the width of each sliding groove is larger than the diameter of the corresponding clamp hole.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a limiting piece of a high-speed motor bearing.
Background
High speed motors are generally motors with a rotational speed of more than 10000 r/min. Because the motor has high rotating speed, the volume is far smaller than that of a common power motor, and the motor is connected with a prime motor, the traditional speed reducing mechanism is cancelled, the rotational inertia of the high-speed motor is small, and the like, the motor has the advantages of high power density, effective material saving, high transmission efficiency, low noise, quick dynamic response and the like.
In order to prevent the axial displacement of the bearing, the split retainer ring is usually adopted to limit the motor bearing, but the rotor speed of the high-speed motor is high, and the split retainer ring can be separated from the motor bearing by huge centrifugal force when the motor runs at a high speed, so that the axial displacement of the bearing occurs, and the working performance and the normal service life of the motor are further influenced.
Disclosure of Invention
Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to: prevent that the bearing locating part from breaking away from the motor shaft because of huge centrifugal force, improve the normal working life of motor. The invention realizes the aim through the following technical scheme:
a stop for a high speed motor bearing, comprising: the clamping part, the first counterweight part, the second counterweight part, the third counterweight part, the fixture block and the bearing limiting part are integrally similar to a gasket structure.
The clamping part is of an annular structure made of elastic materials, an opening is formed in the right side of the clamping part, the radius of the clamping part is slightly smaller than that of the motor shaft, clamping holes are formed in two ends, close to the opening, of the clamping part respectively, rectangular sliding grooves are formed in the outer peripheral face of the bearing limiting part and penetrate through one of the clamping holes and are communicated with the clamping holes, and the width of each sliding groove is larger than the diameter of each clamping hole.
The fixture block is matched with the sliding groove, the fixture block is provided with a positioning hole, the diameter of the positioning hole is the same as that of the clamp hole, and when the positioning hole is aligned with the clamp hole, the fixture block is positioned in the sliding groove.
One end of the first counterweight part is connected to the outer peripheral surface of the end, which is not provided with the sliding groove, of the clamping part, the other end of the first counterweight part extends towards the end, which is provided with the sliding groove, of the clamping part and is positioned on the outer peripheral side of the clamping part, and a clamping groove is formed in one surface, facing the clamping part, of the first counterweight part.
The second counterweight part and the third counterweight part are respectively connected to the outer peripheral surface right above and below the buckling part, when the bearing limiting part is installed on the motor shaft, the center of gravity of the bearing limiting part can be coincided with the center line of the motor shaft through the arrangement of the first counterweight part, the second counterweight part and the third counterweight part, and the motor is more stable in operation.
The invention has the beneficial effects that:
1. the fixture block slides into the clamping groove by utilizing centrifugal force generated by high-speed rotation to complete self-locking of the bearing limiting part, so that the bearing limiting part can be prevented from being separated from a motor shaft due to huge centrifugal force and losing axial positioning effect on the bearing.
2. Utilize the centrifugal force that high-speed rotation produced to make second counter weight portion, third counter weight part produce upwards, decurrent pulling force to buckle portion respectively, make the fixture block more stable with the draw-in groove block of first counter weight portion to make the left and right two parts of buckle portion produce bigger clamping-force, make the more firm joint of bearing locating part on the motor shaft, accomplish the axial positioning to the motor bearing.
3. By means of the arrangement of the first counterweight portion, the second counterweight portion and the third counterweight portion, when the bearing limiting part is installed on the motor shaft, the center of gravity of the bearing limiting part coincides with the center line of the motor shaft, and therefore the motor can run more stably.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural diagram of a fixture block according to the present invention;
fig. 4 is a schematic structural view of the first weight portion of the present invention.
Description of reference numerals:
10. a fastening part; 11. an opening; 12. a clamp hole; 13. a chute; 20. a first weight portion; 21. a card slot; 30. a second weight portion; 40. a third weight portion; 50. a clamping block; 51. and (7) positioning the holes.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those embodiments can be easily implemented by those having ordinary skill in the art to which the present invention pertains. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.
As shown in fig. 1 to 4, a limiting member for a bearing of a high-speed motor includes: the latch 10, the first weight 20, the second weight 30, the third weight 40, the latch 50, and the bearing stopper are similar to a washer structure as a whole.
The clamping part 10 is an annular structure made of elastic materials, an opening 11 is formed right and left, the radius of the clamping part 10 is slightly smaller than that of the motor shaft, two ends, close to the opening 11, of the clamping part 10 are respectively provided with a clamp hole 12, installation of a bearing limiting part is facilitated, a rectangular sliding groove 13 is formed in the outer peripheral surface of the bearing limiting part, the sliding groove 13 penetrates through one clamp hole 12 and is communicated with the clamp hole 12, the width of the sliding groove 13 is larger than the diameter of the clamp hole 12, when the bearing limiting part is installed on the motor shaft, the central line of the sliding groove 13 is perpendicular to the central axis of the motor shaft, the clamping block 50 can be installed in the sliding groove 13, and when the bearing limiting part rotates at a high speed along with the motor shaft of the.
The fixture block 50 is matched with the sliding groove 13, the fixture block 50 is provided with a positioning hole 51, the diameter of the positioning hole 51 is the same as that of the forceps hole 12, and when the positioning hole 51 is aligned with the forceps hole 12, the fixture block 50 is located in the sliding groove 13.
One end of the first counterweight portion 20 is connected to the outer peripheral surface of the end of the fastening portion 10 not provided with the sliding groove 13, the other end of the first counterweight portion 20 extends towards the end of the fastening portion 10 provided with the sliding groove 13 and is located on the outer peripheral side of the fastening portion 10, one surface of the first counterweight portion 20 facing the fastening portion 10 is provided with a clamping groove 21, when the bearing limiting member is installed on a motor shaft, the clamping groove 21 is aligned with the sliding groove 13, when the bearing limiting member is installed on the motor shaft, the clamping block 50 can slide into the clamping groove 21, and self-locking of the bearing limiting member is completed.
When the fixture block 50 abuts against the bottom surface of the clamping groove 21, the distance between the center points of the positioning hole 51 and the caliper hole 12 is not larger than the radius of the positioning hole 51, so that the caliper can be conveniently inserted into the positioning hole 51 and the caliper hole 12, and the fixture block 50 completely returns to the sliding groove 13 while the caliper is inserted, thereby completing the self-locking unlocking of the bearing limiting part.
The second counterweight part 30 and the third counterweight part 40 are respectively connected to the outer peripheral surface right above and below the buckling part 10, when the bearing limiting part is installed on the motor shaft, the center of gravity of the bearing limiting part can be coincided with the center line of the motor shaft through the arrangement of the first counterweight part 20, the second counterweight part 30 and the third counterweight part 40, and the motor can run more stably.
When the bearing locating part is running at a high speed along with the motor shaft of the motor, under the action of centrifugal force, the fixture block 50 slides into the fixture groove 21 along the sliding groove 13, the self-locking of the bearing locating part is completed, the bearing locating part can be prevented from being separated from the motor shaft due to huge centrifugal force, the axial locating effect on the bearing is lost, meanwhile, the second counterweight part 30 and the third counterweight part 40 can respectively generate upward and downward pulling force on the fastening part 10, the fixture block 50 is more stably fastened with the fixture groove 21 of the first counterweight part 20, and the left and right parts of the fastening part 10 generate larger clamping force, the bearing locating part is more firmly fastened on the motor shaft, and the axial locating of the motor bearing is completed.
The working principle is as follows:
firstly, a caliper is inserted into two caliper holes 12 of a bearing limiting piece, two ends of a buckling part 10 are far away through the caliper, then the bearing limiting piece is sleeved on a motor shaft and is attached to a motor bearing, the caliper is removed, at the moment, the bearing limiting piece is tightly clamped on the motor shaft under the elastic action of the buckling part 10, when a high-speed motor runs, the bearing limiting piece rotates along with the motor shaft at a high speed, a clamping block 50 slides into a clamping groove 21 along a sliding groove 13 under the action of centrifugal force, the self-locking of the bearing limiting piece is completed, meanwhile, a second counterweight part 30 and a third counterweight part 40 respectively generate upward and downward pulling forces on the buckling part 10, the clamping block 50 is more stably clamped with the clamping groove 21 of a first counterweight part 20, the left and right parts of the buckling part 10 generate larger clamping forces, the bearing limiting piece is more firmly clamped on the motor shaft, and the axial positioning of the motor bearing is completed, when the bearing is dismounted, the caliper is inserted into the two caliper holes 12 of the bearing limiting part, the clamping block 50 completely returns to the sliding groove 13 under the action of the caliper while the caliper is inserted, the self-locking of the bearing limiting part is released, then the caliper is used for enabling the two ends of the clamping part 10 to be far away, and finally the bearing limiting part is taken out along the direction of a motor shaft.
Claims (2)
1. A stop for a high speed motor bearing, comprising: the clamping buckle comprises a clamping buckle part (10), a first counterweight part (20), a second counterweight part (30), a third counterweight part (40) and a clamping block (50), wherein the second counterweight part (30) and the third counterweight part (40) are respectively connected to the outer peripheral surface right above and the outer peripheral surface right below the clamping buckle part (10); the method is characterized in that: an opening (11) is formed right of the buckling part (10), two ends of the buckling part (10) close to the opening (11) are respectively provided with a clamp hole (12), the peripheral surface of the bearing limiting piece is provided with a rectangular sliding groove (13), the sliding groove (13) penetrates through one clamp hole (12) and is communicated with the clamp hole, the width of the sliding groove (13) is larger than the diameter of the clamp hole (12), the clamping block (50) is matched with the sliding groove (13), the clamping block (50) is provided with a positioning hole (51), the diameter of the positioning hole (51) is the same as that of the clamp hole (12), the positioning hole (51) on the clamping block (50) is aligned with the clamp hole (12), the clamping block (50) is positioned inside the sliding groove (13), one end of the first counterweight part (20) is connected to the peripheral surface of one end of the buckling part (10) which is not provided with the sliding groove (13), the other end of the first counterweight part (20) extends towards one end of the buckling part (10) and is positioned on the peripheral side of the buckling, one surface of the first counterweight part (20) facing the clamping part (10) is provided with a clamping groove (21), the clamping groove (21) is aligned with the sliding groove (13), and the clamping block (50) can slide relatively between the clamping groove (21) and the sliding groove (13).
2. The locating part of the high-speed motor bearing according to claim 1, wherein: the buckling part (10) is of an annular structure made of elastic materials, and the radius of the buckling part (10) is smaller than that of the motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010756165.7A CN111740538B (en) | 2020-07-31 | 2020-07-31 | Locating part of high-speed motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010756165.7A CN111740538B (en) | 2020-07-31 | 2020-07-31 | Locating part of high-speed motor bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111740538A CN111740538A (en) | 2020-10-02 |
| CN111740538B true CN111740538B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010756165.7A Active CN111740538B (en) | 2020-07-31 | 2020-07-31 | Locating part of high-speed motor bearing |
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| CN (1) | CN111740538B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010286007A (en) * | 2009-06-09 | 2010-12-24 | Aisin Ai Co Ltd | Transmission |
| JP2012026502A (en) * | 2010-07-22 | 2012-02-09 | Ntn Corp | Retainer for ball bearing and ball bearing |
| JP2014105733A (en) * | 2012-11-26 | 2014-06-09 | Jtekt Corp | Rolling bearing |
| CN104832547A (en) * | 2014-02-11 | 2015-08-12 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Axial securing ring, bearing arrangement and production method therefor |
| CN105765173A (en) * | 2013-11-26 | 2016-07-13 | 斯奈克玛 | Device for centring and guiding the rotation of a turbine engine shaft including improved means for retaining the external bearing ring |
| CN106122278A (en) * | 2016-08-26 | 2016-11-16 | 新昌县羽林街道君博机械厂 | A kind of two-row ball bearing with self-locking rotating ring |
| CN106468306A (en) * | 2015-08-21 | 2017-03-01 | 舍弗勒技术股份两合公司 | Bearing |
| JP2017190868A (en) * | 2016-04-12 | 2017-10-19 | Ntn株式会社 | Rolling bearing unit |
| CN108035975A (en) * | 2017-12-19 | 2018-05-15 | 新昌县鸿杰电子有限公司 | A kind of Limit Bearing |
| CN108591282A (en) * | 2018-05-07 | 2018-09-28 | 舍弗勒技术股份两合公司 | The method of sleeve and locking for the sleeve of bearing for bearing |
| CN109687626A (en) * | 2018-12-17 | 2019-04-26 | 珠海格力电器股份有限公司 | A kind of locating part and bearing position limiting structure and motor with it |
-
2020
- 2020-07-31 CN CN202010756165.7A patent/CN111740538B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010286007A (en) * | 2009-06-09 | 2010-12-24 | Aisin Ai Co Ltd | Transmission |
| JP2012026502A (en) * | 2010-07-22 | 2012-02-09 | Ntn Corp | Retainer for ball bearing and ball bearing |
| JP2014105733A (en) * | 2012-11-26 | 2014-06-09 | Jtekt Corp | Rolling bearing |
| CN105765173A (en) * | 2013-11-26 | 2016-07-13 | 斯奈克玛 | Device for centring and guiding the rotation of a turbine engine shaft including improved means for retaining the external bearing ring |
| CN104832547A (en) * | 2014-02-11 | 2015-08-12 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Axial securing ring, bearing arrangement and production method therefor |
| CN106468306A (en) * | 2015-08-21 | 2017-03-01 | 舍弗勒技术股份两合公司 | Bearing |
| JP2017190868A (en) * | 2016-04-12 | 2017-10-19 | Ntn株式会社 | Rolling bearing unit |
| CN106122278A (en) * | 2016-08-26 | 2016-11-16 | 新昌县羽林街道君博机械厂 | A kind of two-row ball bearing with self-locking rotating ring |
| CN108035975A (en) * | 2017-12-19 | 2018-05-15 | 新昌县鸿杰电子有限公司 | A kind of Limit Bearing |
| CN108591282A (en) * | 2018-05-07 | 2018-09-28 | 舍弗勒技术股份两合公司 | The method of sleeve and locking for the sleeve of bearing for bearing |
| CN109687626A (en) * | 2018-12-17 | 2019-04-26 | 珠海格力电器股份有限公司 | A kind of locating part and bearing position limiting structure and motor with it |
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| Publication number | Publication date |
|---|---|
| CN111740538A (en) | 2020-10-02 |
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Effective date of registration: 20210425 Address after: Luhe Industrial Zone, Huangjing Town, Taicang City, Suzhou City, Jiangsu Province Applicant after: JIANGSU YOUFU AUTO PARTS TECHNOLOGY Co.,Ltd. Address before: Room 610, Jiangning Science and technology group, No. 391, Tianyuan East Road, Jiangning District, Nanjing, Jiangsu Province Applicant before: Nanjing Geshui Technology Co.,Ltd. |
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