CN212210695U - Motor vibration damping and noise eliminating mechanism for automobile - Google Patents
Motor vibration damping and noise eliminating mechanism for automobile Download PDFInfo
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- CN212210695U CN212210695U CN202020759540.9U CN202020759540U CN212210695U CN 212210695 U CN212210695 U CN 212210695U CN 202020759540 U CN202020759540 U CN 202020759540U CN 212210695 U CN212210695 U CN 212210695U
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Abstract
The utility model discloses a motor damping noise elimination mechanism for car, including a plurality of first damping rings, dish spring and a plurality of second damping ring, a plurality of first damping ring overlap respectively and establish in the outside of the outer lane of first bearing and set up between the inner wall of the outer lane of first bearing and first bearing fixing base by radial clamping, the rear end an organic whole of first bearing fixing base is provided with the baffle, the dish spring is set up between the rear end of the outer lane of baffle and first bearing by axial clamping, a plurality of second damping ring overlap respectively the outside of the outer lane of second bearing and set up between the inner wall of the outer lane of second bearing and second bearing fixing base by radial clamping. The vibration reduction and noise elimination mechanism is simple in structure, and can effectively buffer and attenuate impact force between the first bearing and the first bearing fixing seat and between the second bearing and the second bearing fixing seat, so that the purposes of reducing motor vibration and eliminating working noise are achieved, and meanwhile, the requirements on the machining precision of the first bearing seat and the second bearing seat and the assembly precision of the whole motor can be reduced.
Description
Technical Field
The utility model belongs to the technical field of the auto steering and braking, concretely relates to motor damping noise elimination mechanism for car.
Background
The rotation axis that is used for supporting the motor on the present car is installed on the bearing, and the bearing is installed in the bearing fixing base, has the fit clearance that is difficult to avoid between bearing and the bearing fixing base, leads to the motor at the during operation, produces vibration and noise between bearing and bearing fixing base.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the motor vibration reduction and noise elimination mechanism for the automobile is provided, has a simple structure, adopts a flexible design, can effectively buffer and attenuate the impact force between the first bearing and the first bearing fixing seat as well as between the second bearing and the second bearing fixing seat, thereby achieving the purposes of reducing the vibration of the motor and eliminating the working noise, and simultaneously reducing the processing precision of the first bearing seat and the second bearing seat and the assembly precision requirement of the whole motor.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a motor vibration damping and noise elimination mechanism for an automobile is supported by a rotating shaft, the rear end of the rotating shaft is arranged on a first bearing, the front end of the rotating shaft is arranged on a second bearing, the first bearing is arranged in a first bearing fixing seat, the second bearing is arranged in a second bearing fixing seat, the vibration damping and noise elimination mechanism comprises a plurality of first vibration damping rings, a disc spring and a plurality of second vibration damping rings, the first vibration damping rings are respectively sleeved on the outer sides of the outer rings of the first bearings, the first vibration damping rings are respectively and radially clamped and arranged between the outer rings of the first bearings and the inner wall of the first bearing fixing seat, a baffle is integrally arranged at the rear end of the first bearing fixing seat, the disc spring is axially clamped and arranged between the baffle and the rear end of the outer rings of the first bearings, the second vibration reduction rings are respectively sleeved on the outer side of the outer ring of the second bearing and are respectively and radially clamped between the outer ring of the second bearing and the inner wall of the second bearing fixing seat.
The damping and noise elimination mechanism is simple in structure, flexible in design and capable of generating pretightening force through elastic deformation of the first damping rings and the second damping rings to achieve radial clearance elimination, and axial clearance and play of installation of the first bearing are eliminated through the disc spring, so that reliable installation of the first bearing and the second bearing is achieved. When the rotor of motor during operation, first damping ring and second damping ring can effectively cushion and attenuate the impact between first bearing and first bearing fixing base and second bearing and the second bearing fixing base to reach the purpose that alleviates motor vibration, eliminate work noise. In addition, the flexible design adopted by the vibration damping and noise elimination mechanism can reduce the requirements on the machining precision of the first bearing seat and the second bearing seat and the assembly precision of the whole motor.
Preferably, the rotating shaft includes a front narrow section, a wide section and a rear narrow section integrally arranged in front and rear, the rotor of the motor is mounted on the outer side of the wide section, the stator of the motor is mounted on the outer side of the rotor, the first bearing is mounted on the rear narrow section, the front end surface of the inner ring of the first bearing is attached to the rear end surface of the wide section, the second bearing is mounted on the front narrow section, and the rear end surface of the inner ring of the second bearing is attached to the front end surface of the wide section. Through the external diameter difference between the front narrow diameter section and the rear narrow diameter section as well as the wide diameter section, the axial positioning installation of the first bearing and the second bearing is realized, the structure is simple, and the assembly is convenient.
Furthermore, the back narrow diameter section with the linking department of wide diameter section seted up first annular, the front end an organic whole of the inner wall of the inner circle of first bearing be provided with first radial bulge loop, first radial bulge loop inlay and establish first annular in. Or, the joint of the front narrow-diameter section and the wide-diameter section is provided with a second annular groove, the rear end of the inner wall of the inner ring of the second bearing is integrally provided with a second radial convex ring, and the second radial convex ring is embedded in the second annular groove. The design of the first radial convex ring and the second radial convex ring can further improve the positioning and mounting precision and reliability of the first bearing and the second bearing, and achieve better vibration reduction and noise elimination effects.
Preferably, the first damping rings and the second damping rings are damping rings made of elastic non-metallic materials. The first vibration reduction ring and the second vibration reduction ring are made of elastic non-metal materials, can be produced and manufactured through an injection molding process, are easy to produce in a large scale and are low in cost.
Further, the first vibration reduction rings and the second vibration reduction rings are rubber rings. Besides rubber, the damping ring made of other elastic non-metal materials can also be adopted.
Preferably, the outer surface of the outer ring of the first bearing is provided with a plurality of third ring grooves, the plurality of third ring grooves are arranged at intervals along the axial direction of the outer ring of the first bearing, and each third ring groove is internally provided with one first vibration reduction ring; the outer surface of the outer ring of the second bearing is provided with a plurality of fourth ring grooves, the fourth ring grooves are arranged along the axial direction of the outer ring of the second bearing at intervals, and each fourth ring groove is internally provided with one second vibration reduction ring. Or preferably, the inner wall of the first bearing fixing seat is provided with a plurality of fifth ring grooves, the fifth ring grooves are arranged at intervals along the axial direction of the first bearing fixing seat, and each fifth ring groove is internally provided with one first vibration damping ring; the inner wall of the second bearing fixing seat is provided with a plurality of sixth ring grooves, the sixth ring grooves are arranged along the axial direction of the second bearing fixing seat at intervals, and each sixth ring groove is internally provided with one second vibration reduction ring. The design of above-mentioned annular, simple structure easily realizes, and the pretightning force is produced to the first damping ring of easy to assemble and second damping ring. When the first damping ring and the second damping ring are installed, part of the first damping ring and part of the second damping ring are exposed out of the ring groove, and after the first bearing and the second bearing are installed, the first damping ring and the second damping ring can generate certain elastic deformation to generate enough pretightening force.
Compared with the prior art, the utility model has the advantages of: the vibration-damping and noise-eliminating mechanism has a simple structure, and is suitable for vibration damping and noise elimination of various automobile motors such as an automobile EPS steering system power-assisted motor and the like. The damping and noise elimination mechanism adopts flexible design, generates pretightening force through elastic deformation of a plurality of first damping rings and a plurality of second damping rings, realizes radial clearance elimination, eliminates axial clearance and play of the installation of the first bearing through a disc spring, and realizes reliable installation of the first bearing and the second bearing. When the rotor of motor during operation, first damping ring and second damping ring can effectively cushion and attenuate the impact between first bearing and first bearing fixing base and second bearing and the second bearing fixing base to reach the purpose that alleviates motor vibration, eliminate work noise. In addition, the flexible design adopted by the vibration damping and noise elimination mechanism can reduce the requirements on the machining precision of the first bearing seat and the second bearing seat and the assembly precision of the whole motor.
Drawings
Fig. 1 is a structural schematic diagram of an assembled motor vibration damping and noise elimination mechanism for an automobile in embodiment 1;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
fig. 4 is a structural schematic diagram of the vibration damping and noise eliminating mechanism of the motor for an automobile in embodiment 2 after assembly.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 3, the motor for the automobile of embodiment 1 is supported by a rotating shaft 5, a rear end of the rotating shaft 5 is installed on a first bearing 1, a front end of the rotating shaft 5 is installed on a second bearing 2, the first bearing 1 is installed in a first bearing fixing seat 3, the second bearing 2 is installed in a second bearing fixing seat 4, the vibration-damping and noise-damping mechanism includes two first vibration-damping rings 61, a disc spring 62 and two second vibration-damping rings 63, the two first vibration-damping rings 61 and the two second vibration-damping rings 63 are vibration-damping rings made of elastic non-metallic material, in this embodiment, the two first vibration-damping rings 61 and the two second vibration-damping rings 63 are rubber rings, the two first vibration-damping rings 61 are respectively sleeved outside outer rings of the first bearing 1, the two first vibration-damping rings 61 are respectively radially clamped between the outer rings of the first bearing 1 and an inner wall of the first bearing fixing seat 3, the baffle 31 is integrally arranged at the rear end of the first bearing fixing seat 3, the disc spring 62 is axially clamped between the baffle 31 and the rear end of the outer ring of the first bearing 1, the two second damping rings 63 are respectively sleeved on the outer sides of the outer rings of the second bearing 2, and the two second damping rings 63 are respectively radially clamped between the outer ring of the second bearing 2 and the inner wall of the second bearing fixing seat 4.
In embodiment 1, the rotating shaft 5 includes a front narrow section 51, a wide section 52, and a rear narrow section 53 integrally provided in the front-rear direction, the rotor 54 of the motor is mounted on the outside of the wide section 52, the stator 55 of the motor is mounted on the outside of the rotor 54, the first bearing 1 is mounted on the rear narrow section 53, the front end surface of the inner ring of the first bearing 1 is fitted to the rear end surface of the wide section 52, the second bearing 2 is mounted on the front narrow section 51, and the rear end surface of the inner ring of the second bearing 2 is fitted to the front end surface of the wide section 52.
In embodiment 1, a first annular groove 56 is formed at a joint of the rear narrow section 53 and the wide section 52, a first radial protruding ring 11 is integrally arranged at a front end of an inner wall of an inner ring of the first bearing 1, the first radial protruding ring 11 is embedded in the first annular groove 56, a second annular groove 57 is formed at a joint of the front narrow section 51 and the wide section 52, a second radial protruding ring 21 is integrally arranged at a rear end of an inner wall of an inner ring of the second bearing 2, and the second radial protruding ring 21 is embedded in the second annular groove 57; the outer surface of the outer ring of the first bearing 1 is provided with two third ring grooves 12, the two third ring grooves 12 are arranged at intervals along the axial direction of the outer ring of the first bearing 1, and a first vibration damping ring 61 is arranged in each third ring groove 12; two fourth ring grooves 22 are seted up to the surface of the outer lane of second bearing 2, and two fourth ring grooves 22 set up along the axial interval of the outer lane of second bearing 2, install a second damping ring 63 in every fourth ring groove 22.
The automobile motor vibration damping and noise elimination mechanism in embodiment 2 is different from embodiment 1 in that, in embodiment 2, as shown in fig. 4, two fifth annular grooves 32 are formed in the inner wall of a first bearing fixing seat 3, the two fifth annular grooves 32 are arranged at intervals along the axial direction of the first bearing fixing seat 3, and a first vibration damping ring 61 is installed in each fifth annular groove 32; two sixth ring grooves 41 are formed in the inner wall of the second bearing fixing seat 4, the two sixth ring grooves 41 are arranged along the axial direction of the second bearing fixing seat 4 at intervals, and a second vibration reduction ring 63 is installed in each sixth ring groove 41.
The damping and noise elimination mechanism is simple in structure, flexible in design, pretightening force is generated through elastic deformation of the two first damping rings 61 and the two second damping rings 63, radial clearance elimination is achieved, meanwhile, axial clearance and play of installation of the first bearing 1 are eliminated through the disc spring 62, and reliable installation of the first bearing 1 and the second bearing 2 is achieved. When the rotor 54 of the motor works, the first vibration damping ring 61 and the second vibration damping ring 63 can effectively buffer and attenuate the impact force between the first bearing 1 and the first bearing fixing seat 3 and between the second bearing 2 and the second bearing fixing seat 4, thereby achieving the purposes of reducing the vibration of the motor and eliminating the working noise.
Claims (8)
1. A motor vibration damping and noise elimination mechanism for an automobile is supported by a rotating shaft, the rear end of the rotating shaft is arranged on a first bearing, the front end of the rotating shaft is arranged on a second bearing, the first bearing is arranged in a first bearing fixing seat, and the second bearing is arranged in a second bearing fixing seat, and is characterized in that the vibration damping and noise elimination mechanism comprises a plurality of first vibration damping rings, a disc spring and a plurality of second vibration damping rings, the first vibration damping rings are respectively sleeved on the outer sides of the outer rings of the first bearings, the first vibration damping rings are respectively and radially clamped and arranged between the outer rings of the first bearings and the inner walls of the first bearing fixing seats, the rear end of the first bearing fixing seat is integrally provided with a baffle plate, and the disc spring is axially clamped and arranged between the baffle plate and the rear end of the outer rings of the first bearings, the second vibration reduction rings are respectively sleeved on the outer side of the outer ring of the second bearing and are respectively and radially clamped between the outer ring of the second bearing and the inner wall of the second bearing fixing seat.
2. The vibration damping and noise eliminating mechanism for the automobile motor according to claim 1, wherein the rotating shaft includes a front narrow section, a wide section and a rear narrow section integrally provided in a front-rear direction, the rotor of the motor is mounted on an outer side of the wide section, the stator of the motor is mounted on an outer side of the rotor, the first bearing is mounted on the rear narrow section, a front end surface of an inner ring of the first bearing is in contact with a rear end surface of the wide section, the second bearing is mounted on the front narrow section, and a rear end surface of an inner ring of the second bearing is in contact with a front end surface of the wide section.
3. The automobile motor vibration damping and noise elimination mechanism according to claim 2, wherein a first annular groove is formed at the joint of the rear narrow-diameter section and the wide-diameter section, a first radial convex ring is integrally arranged at the front end of the inner wall of the inner ring of the first bearing, and the first radial convex ring is embedded in the first annular groove.
4. The automobile motor vibration damping and noise elimination mechanism according to claim 2, wherein a second annular groove is formed at the joint of the front narrow diameter section and the wide diameter section, a second radial convex ring is integrally arranged at the rear end of the inner wall of the inner ring of the second bearing, and the second radial convex ring is embedded in the second annular groove.
5. The vibration damping and noise eliminating mechanism for the motor of the automobile as claimed in claim 1, wherein said first vibration damping rings and said second vibration damping rings are vibration damping rings made of elastic non-metallic material.
6. The vibration damping and noise eliminating mechanism for the motor of the automobile as claimed in claim 5, wherein said first vibration damping rings and said second vibration damping rings are rubber rings.
7. The automobile motor vibration damping and noise eliminating mechanism according to any one of claims 1 to 6, wherein a plurality of third ring grooves are formed in the outer surface of the outer ring of the first bearing, the plurality of third ring grooves are arranged at intervals along the axial direction of the outer ring of the first bearing, and one first vibration damping ring is installed in each third ring groove; the outer surface of the outer ring of the second bearing is provided with a plurality of fourth ring grooves, the fourth ring grooves are arranged along the axial direction of the outer ring of the second bearing at intervals, and each fourth ring groove is internally provided with one second vibration reduction ring.
8. The automobile motor vibration damping and noise eliminating mechanism according to any one of claims 1 to 6, wherein a plurality of fifth ring grooves are formed in the inner wall of the first bearing fixing seat, the fifth ring grooves are arranged at intervals along the axial direction of the first bearing fixing seat, and one first vibration damping ring is installed in each fifth ring groove; the inner wall of the second bearing fixing seat is provided with a plurality of sixth ring grooves, the sixth ring grooves are arranged along the axial direction of the second bearing fixing seat at intervals, and each sixth ring groove is internally provided with one second vibration reduction ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759540.9U CN212210695U (en) | 2020-05-09 | 2020-05-09 | Motor vibration damping and noise eliminating mechanism for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759540.9U CN212210695U (en) | 2020-05-09 | 2020-05-09 | Motor vibration damping and noise eliminating mechanism for automobile |
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| Publication Number | Publication Date |
|---|---|
| CN212210695U true CN212210695U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020759540.9U Active CN212210695U (en) | 2020-05-09 | 2020-05-09 | Motor vibration damping and noise eliminating mechanism for automobile |
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| CN (1) | CN212210695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206617A (en) * | 2021-05-11 | 2021-08-03 | 南京航达超控科技有限公司 | High-overload-resistant double-stator-rotor serial ultrasonic motor and implementation mode |
-
2020
- 2020-05-09 CN CN202020759540.9U patent/CN212210695U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113206617A (en) * | 2021-05-11 | 2021-08-03 | 南京航达超控科技有限公司 | High-overload-resistant double-stator-rotor serial ultrasonic motor and implementation mode |
| CN113206617B (en) * | 2021-05-11 | 2022-10-11 | 南京航达超控科技有限公司 | High-overload-resistant double-stator-rotor serial ultrasonic motor and implementation mode |
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Effective date of registration: 20230801 Address after: 315191 East 1st Road, Science Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Shangyuan Zhixing (Ningbo) Technology Co.,Ltd. Address before: 315191 East 1st Road, Science Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Zhejiang tianshangyuan Technology Co.,Ltd. |