CN220401533U - Pre-tightening structure for removing axial play of bearing - Google Patents
Pre-tightening structure for removing axial play of bearing Download PDFInfo
- Publication number
- CN220401533U CN220401533U CN202321285417.8U CN202321285417U CN220401533U CN 220401533 U CN220401533 U CN 220401533U CN 202321285417 U CN202321285417 U CN 202321285417U CN 220401533 U CN220401533 U CN 220401533U
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- bearing
- stator
- shell
- play
- axial play
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- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a pre-tightening structure for removing axial play of a bearing, which is characterized in that a shell is provided with an inner cavity, the inner cavity is internally provided with the bearing and an elastic piece, the elastic piece is arranged between the bearings, the stability of a motor is better maintained, the noise of the motor is reduced, and the pre-tightening structure is particularly shown in the following steps: the elastic piece props against the bearing, so that the bearing is limited at two ends of the inner cavity of the shell, and the bearing is prevented from moving along the rotating shaft of the rotor assembly. The bearing can keep relative static in the inner cavity, so that the stability of the motor is improved, and the noise in the motor is reduced.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to a pre-tightening structure for removing axial play of a bearing.
Background
The motor is a motor and an engine, and the working principle is that an electrified coil is arranged in a stator to generate a magnetic field, and a rotor component is stressed in the magnetic field to rotate so as to drive an impeller of the motor to rotate. In the prior art, the axial play of the bearing exists in the high-speed motor rotor structure in the high-speed rotation process, so that the noise of the motor and the stability of the motor are influenced, and therefore, the utility model provides a pre-tightening structure for removing the axial play of the bearing.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and provide a pre-tightening structure for removing axial play of a bearing, wherein an inner cavity of a shell is arranged, the bearing is arranged in the inner cavity, an elastic piece is arranged between the bearings, the axial play between the two bearings is counteracted, and the stability and noise of a motor are improved.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a bearing-backlash-free pretension structure comprising: the casing, the casing is equipped with the inner chamber, is equipped with the bearing in the inner chamber, and the bearing is used for interference fit rotor assembly's pivot, is equipped with the elastic component between the bearing, and the spacing bearing of elastic component supports the bearing at inner chamber both ends, avoids the axial displacement of bearing along the pivot.
Further, the elastic piece adopts a spring, the spring is sleeved outside the rotating shaft, and the end parts of the two ends respectively prop against the bearings on the two sides.
Further, the shell both ends extension forms first limiting plate and second limiting plate, and first limiting plate is used for spacing stator module, and the second limiting plate is used for spacing impeller.
Further, the impeller comprises a protection plate and blades, the blades are arranged around the circumference of the protection plate, the protection plate is provided with a clamping hole, the clamping hole is internally connected with a rotating shaft in an interference mode, and the edge of the protection plate is bent towards the direction of the bearing so as to cover the outside of the bearing.
Further, the housing is provided with an air duct for heat dissipation of the rotor assembly and the stator assembly, the air duct being circumferentially disposed about the rotor assembly.
Further, a reinforcing plate is arranged in the air duct so as to improve the structural strength of the shell.
Further, the stator assembly comprises a stator core, stator teeth are arranged on the stator core, the stator teeth are circumferentially arranged around the stator core, tooth grooves are formed between the stator teeth, and the stator teeth are T-shaped.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the utility model, the shell is provided with the inner cavity, the bearing and the elastic piece are arranged in the inner cavity, and the elastic piece is arranged between the bearings, so that the stability of the motor is better maintained and the noise of the motor is reduced, and the utility model is particularly shown in the following steps:
the elastic piece props against the bearing, so that the bearing is limited at two ends of the inner cavity of the shell, and the bearing is prevented from moving along the rotating shaft of the rotor assembly. The bearing can keep relative static in the inner cavity, so that the stability of the motor is improved, and the noise in the motor is reduced.
The elastic piece adopts a spring, the spring is sleeved outside the rotating shaft, and the two end parts are respectively propped against the bearings on the two sides, so that the spring keeps elasticity and always limits the bearings.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a schematic view of the impeller according to the present utility model;
FIG. 3 is a schematic view of a housing according to the present utility model;
FIG. 4 is a schematic diagram of a housing (II) according to the present utility model;
fig. 5 is a schematic structural view of a stator assembly and a rotating shaft according to the present utility model.
In the figure, 1-bearing; 2-an elastic member; 3-an air duct; 4-reinforcing plates; 5-rotating shaft; 6-impeller; 7-protecting the board; 8-clamping and embedding holes; 9-leaf blades; 10-inner cavity; 11-a first limiting plate; 12-a second limiting plate; 13-a stator assembly; 14-tooth grooves; 15-stator teeth; 16-a housing.
Detailed Description
As shown in fig. 1 to 5, a pre-tightening structure for removing axial play of a bearing according to the present utility model includes: the shell 16, the shell 16 is equipped with inner chamber 10, is equipped with bearing 1 in the inner chamber 10, and bearing 1 is used for interference fit rotor assembly's pivot 5, is equipped with elastic component 2 between the bearing 1, and the spacing bearing 1 of elastic component 2 supports bearing 1 at inner chamber 10 both ends, avoids bearing 1 along the axial displacement of pivot 5. Through setting up elastic component 2, elastic component 2 acts on bearing 1, and other forces that balanced bearing 1 received for bearing 1 remains static for casing 16 inner chamber 10, and then solves the problem that exists among the prior art, has good practicality.
The elastic piece 2 adopts a spring, the spring is sleeved outside the rotating shaft 5, and the end parts of the two ends respectively prop against the bearings 1 on the two sides. The spring is sleeved on the rotating shaft 5, so that the spring is more convenient to install between the bearings 1.
The two ends of the shell 16 are prolonged to form a first limiting plate 11 and a second limiting plate 12, the first limiting plate 11 is used for limiting the stator assembly 13, and the second limiting plate 12 is used for limiting the impeller 6. The first limiting plate 11 extends the housing 16 from the end of the inner cavity 10 to limit the stator assembly 13, and the second limiting plate 12 extends the housing 16 from the end of the air duct 3 to limit the impeller 6.
Impeller 6 includes protection shield 7 and blade 9, and blade 9 encircles 7 circumference settings of protection shield, and protection shield 7 is equipped with inlay card hole 8, and the pivot 5 is connected to the interference in the inlay card hole 8, and protection shield 7 border is bent towards bearing 1 direction to the cover is established in bearing 1 outside, effectively avoids impurity entering bearing 1 inside, influences the rotation of pivot 5.
The housing 16 is provided with an air channel 3, the air channel 3 being used for heat dissipation of the rotor assembly and the stator assembly 13, the air channel 3 being circumferentially arranged around the rotor assembly. The air duct 3 is used for guiding wind generated when the impeller 6 rotates, so that the rotor assembly and the stator assembly 13 perform sufficient heat dissipation. A reinforcing plate 4 is arranged in the air duct 3 to improve the structural strength of the housing 16.
The stator assembly 13 comprises a stator core, stator teeth 15 are arranged on the stator core, the stator teeth 15 are circumferentially arranged around the stator core, tooth grooves 14 are formed between the stator teeth 15, and the stator teeth 15 are T-shaped, so that an energizing coil is wound on the stator teeth 15 conveniently.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (7)
1. A pretension structure for removing axial play of a bearing, comprising: the shell, the shell is equipped with the inner chamber, be equipped with the bearing in the inner chamber, the bearing is used for interference fit rotor assembly's pivot, be equipped with the elastic component between the bearing, the elastic component is spacing the bearing will the bearing supports the inner chamber both ends avoid the bearing is along the axial displacement of pivot.
2. A bearing-play-free pretension according to claim 1, characterized in that: the elastic piece adopts a spring, the spring is sleeved outside the rotating shaft, and the end parts of the two ends respectively prop against the bearings on the two sides.
3. A bearing-play-free pretension according to claim 1, characterized in that: the two ends of the shell are prolonged to form a first limiting plate and a second limiting plate, the first limiting plate is used for limiting the stator assembly, and the second limiting plate is used for limiting the impeller.
4. A bearing axial play-removing pretension according to claim 3, characterized in that: the impeller comprises a protection plate and blades, the blades are arranged around the circumference of the protection plate, the protection plate is provided with a clamping hole, the clamping hole is internally connected with the rotating shaft in an interference mode, and the edges of the protection plate are bent towards the direction of the bearing so as to cover the outside of the bearing.
5. A bearing axial play-removing pretension according to claim 3, characterized in that: the stator assembly comprises a stator core, wherein stator teeth are arranged on the stator core, the stator teeth are circumferentially arranged around the stator core, tooth grooves are formed between the stator teeth, and the stator teeth are in a T shape.
6. A bearing axial play-removing pretension according to claim 3, characterized in that: the housing is provided with an air duct for heat dissipation of the rotor assembly and the stator assembly, and the air duct is circumferentially arranged around the rotor assembly.
7. A bearing play-free pretension according to claim 6, characterized in that: a reinforcing plate is arranged in the air duct so as to improve the structural strength of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321285417.8U CN220401533U (en) | 2023-05-24 | 2023-05-24 | Pre-tightening structure for removing axial play of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321285417.8U CN220401533U (en) | 2023-05-24 | 2023-05-24 | Pre-tightening structure for removing axial play of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220401533U true CN220401533U (en) | 2024-01-26 |
Family
ID=89601306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321285417.8U Active CN220401533U (en) | 2023-05-24 | 2023-05-24 | Pre-tightening structure for removing axial play of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220401533U (en) |
-
2023
- 2023-05-24 CN CN202321285417.8U patent/CN220401533U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |