CN213360862U - High-temperature-resistant high-precision shaft sleeve - Google Patents
High-temperature-resistant high-precision shaft sleeve Download PDFInfo
- Publication number
- CN213360862U CN213360862U CN202022175210.8U CN202022175210U CN213360862U CN 213360862 U CN213360862 U CN 213360862U CN 202022175210 U CN202022175210 U CN 202022175210U CN 213360862 U CN213360862 U CN 213360862U
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- heat dissipation
- axle sleeve
- shaft sleeve
- sleeve shell
- polyimide
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Abstract
The utility model provides a high temperature resistant high accuracy axle sleeve, its includes an axle sleeve shell, a fixed connection in polyimide inside lining in the axle sleeve shell, and one sets up the axle sleeve shell with heat dissipation unit between the polyimide inside lining. The heat dissipation unit comprises a plurality of heat dissipation grooves and a plurality of heat dissipation through holes, wherein the heat dissipation grooves are formed in the shaft sleeve shell, the heat dissipation grooves are formed in one side, close to the polyimide lining, of the shaft sleeve shell and are formed in the axial direction of the shaft sleeve shell, and the heat dissipation through holes are formed in the shaft sleeve shell. Each heat dissipation through hole is communicated with one heat dissipation groove, so that air flow is dissipated between the shaft sleeve shell and the polyimide lining. The high-temperature-resistant high-precision shaft sleeve is simple in structure, convenient to dissipate heat and capable of prolonging the service life of the shaft sleeve.
Description
Technical Field
The utility model belongs to the technical field of the axle sleeve, especially a high temperature resistant high accuracy axle sleeve.
Background
The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of the sliding bearing. Generally, the shaft sleeve and the rotating shaft are in clearance fit.
When the current shaft sleeve is arranged on the rotating shaft for use, a large amount of heat is generated between the shaft sleeve and the rotating shaft due to the rapid rotation of the rotating shaft, so that the shaft sleeve is easy to damage in work and the service life of the shaft sleeve is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can promote radiating effect's high temperature resistant high accuracy axle sleeve to satisfy the industrial demand.
The utility model provides a high temperature resistant high accuracy axle sleeve, its includes an axle sleeve shell, a fixed connection in polyimide inside lining in the axle sleeve shell, and one sets up the axle sleeve shell with heat dissipation unit between the polyimide inside lining. The heat dissipation unit comprises a plurality of heat dissipation grooves and a plurality of heat dissipation through holes, wherein the heat dissipation grooves are formed in the shaft sleeve shell, the heat dissipation grooves are formed in one side, close to the polyimide lining, of the shaft sleeve shell and are formed in the axial direction of the shaft sleeve shell, and the heat dissipation through holes are formed in the shaft sleeve shell. Each heat dissipation through hole is communicated with one heat dissipation groove, so that air flow is dissipated between the shaft sleeve shell and the polyimide lining.
Further, the edges of the shaft sleeve shell and the polyimide lining are provided with rounded corners.
Furthermore, the outer contour of the heat dissipation through hole is polygonal or circular.
Furthermore, the number of the heat dissipation grooves and the number of the heat dissipation through holes are four.
Further, the distances between any two adjacent heat dissipation grooves and any two adjacent heat dissipation through holes are equal.
Further, the central axis of each heat dissipation through hole passes through the center of the heat dissipation groove, and the diameter of the heat dissipation through hole is equal to the width of the heat dissipation groove.
Compared with the prior art, the utility model provides a high temperature resistant high accuracy axle sleeve passes through the axle sleeve shell with between the polyimide inside lining the radiating unit dispels the heat. The heat dissipation unit comprises a plurality of heat dissipation grooves and a plurality of heat dissipation through holes, wherein the heat dissipation grooves are formed in the shaft sleeve shell, the heat dissipation grooves are formed in one side, close to the polyimide lining, of the shaft sleeve shell and are formed in the axial direction of the shaft sleeve shell, and the heat dissipation through holes are formed in the shaft sleeve shell. Each heat dissipation through hole is communicated with one heat dissipation groove, so that when the shaft sleeve is used, airflow enters the space between the shaft sleeve shell and the polyimide lining from the heat dissipation through holes and the two ends of the heat dissipation grooves to dissipate heat. The high-temperature-resistant high-precision shaft sleeve is simple in structure, convenient to dissipate heat and capable of prolonging the service life of the shaft sleeve.
Drawings
Fig. 1 is the utility model provides a structural schematic diagram of high temperature resistant high accuracy axle sleeve.
Fig. 2 is a schematic sectional structure view of the high-temperature-resistant high-precision bushing of fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 2, it is a schematic structural diagram of the high temperature resistant high precision shaft sleeve provided by the present invention. The high-temperature-resistant high-precision shaft sleeve comprises a shaft sleeve shell 10, a polyimide lining 20 fixedly connected in the shaft sleeve shell 10, and a heat dissipation unit 30 arranged between the shaft sleeve shell 10 and the polyimide lining 20. The high temperature resistant high precision bushing also includes other functional modules, such as assembly components, etc., which should be known to those skilled in the art, and will not be described in detail herein.
The bushing shell 10 is used to protect the polyimide lining 20, and in this embodiment, the bushing shell 10 is made of steel to ensure the quality of the bushing shell 10.
The polyimide liner 20 is made of polyimide, the polyimide is a polymer containing an imide ring (-CO-N-CO-) on a main chain, wherein the polymer containing a phthalimide structure is the most important, the polyimide has high temperature resistance of over 400 ℃, the long-term use temperature range is-200-300 ℃, no obvious melting point exists in part, and the polyimide has high insulating property, and is the prior art. Therefore, the polyimide liner 20 has high temperature resistance and wear resistance, so as to ensure that the polyimide liner 20 works stably. And the edges of the bushing shell 10 and the polyimide lining 20 are rounded.
The heat dissipation unit 30 includes a plurality of heat dissipation grooves 31 disposed on one side of the bushing housing 10 close to the polyimide liner 20 and along the axial direction of the bushing housing 10, and a plurality of heat dissipation through holes 32 disposed on the bushing housing 10.
Each of the heat dissipation grooves 31 is disposed along the axial direction of the boss housing 10, and it is conceivable that both ends of the heat dissipation groove 31 are open to both ends of the boss housing 10.
The distances between any two adjacent heat dissipation grooves 31 and any two adjacent heat dissipation through holes 32 are equal, so that the heat dissipation of the shaft sleeve is uniform. In addition, the outer contour of the heat dissipation through hole 32 is polygonal or circular, in this embodiment, the number of the heat dissipation grooves 31 and the number of the heat dissipation through holes 32 are four, and the number of the heat dissipation through holes 32 is circular.
Each of the heat dissipation through holes 32 is communicated with one of the heat dissipation grooves 31, so that air flows between the bushing housing 10 and the polyimide liner 20 for heat dissipation. Therefore, when the heat dissipation structure is used, airflow enters the space between the shaft sleeve shell 10 and the polyimide lining 20 from the heat dissipation through holes 32 and the two ends of the heat dissipation through holes 32 to dissipate heat, so that the heat of the polyimide lining 20 is taken away by the airflow, and the polyimide lining 20 is prevented from deforming due to overhigh temperature. The central axis of each heat dissipating through hole 32 passes through the center of the heat dissipating groove 31, and the diameter of the heat dissipating through hole 32 is equal to the width of the heat dissipating groove 31, thereby facilitating the air flow from the heat dissipating through hole 32 to the heat dissipating groove 31.
Compared with the prior art, the utility model provides a high temperature resistant high accuracy axle sleeve passes through axle sleeve shell 10 with between the polyimide inside lining 20 the radiating unit 30 dispels the heat. The heat dissipation unit 30 includes a plurality of heat dissipation grooves 31 disposed on one side of the bushing housing 10 close to the polyimide liner 20 and along the axial direction of the bushing housing 10, and a plurality of heat dissipation through holes 32 disposed on the bushing housing 10. Each of the heat dissipating through holes 32 is communicated with one of the heat dissipating grooves 31, so that when the bushing is used, air flows into the space between the bushing shell 10 and the polyimide liner 20 from the heat dissipating through holes 32 and the two ends of the heat dissipating grooves 31 for heat dissipation. The high-temperature-resistant high-precision shaft sleeve is simple in structure, convenient to dissipate heat and capable of prolonging the service life of the shaft sleeve.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (6)
1. The utility model provides a high temperature resistant high accuracy axle sleeve which characterized in that: high temperature resistant high accuracy axle sleeve includes an axle sleeve shell, and a fixed connection is in polyimide inside lining in the axle sleeve shell, and a setting is in the axle sleeve shell with heat dissipation unit between the polyimide inside lining, heat dissipation unit includes a plurality of settings and is in the axle sleeve shell is close to polyimide inside lining one side and edge axle sleeve shell axial heat dissipation recess, and a plurality of settings are in heat dissipation through-hole on the axle sleeve shell, every heat dissipation through-hole all with one heat dissipation recess communicates each other, so that the air current is in the axle sleeve shell with dispel the heat between the polyimide inside lining.
2. The high-temperature-resistant high-precision shaft sleeve as claimed in claim 1, wherein: the edge of axle sleeve shell and polyimide inside lining all sets up the radius angle.
3. The high-temperature-resistant high-precision shaft sleeve as claimed in claim 1, wherein: the outline of the heat dissipation through hole is polygonal or circular.
4. The high-temperature-resistant high-precision shaft sleeve as claimed in claim 1, wherein: the number of the heat dissipation grooves and the number of the heat dissipation through holes are four.
5. The high temperature resistant, high precision bushing of claim 4 wherein: the distances between any two adjacent heat dissipation grooves and any two adjacent heat dissipation through holes are equal.
6. The high temperature resistant, high precision bushing of claim 4 wherein: the central shaft of each heat dissipation through hole penetrates through the center of the heat dissipation groove, and the diameter of each heat dissipation through hole is equal to the width of the heat dissipation groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022175210.8U CN213360862U (en) | 2020-09-28 | 2020-09-28 | High-temperature-resistant high-precision shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022175210.8U CN213360862U (en) | 2020-09-28 | 2020-09-28 | High-temperature-resistant high-precision shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213360862U true CN213360862U (en) | 2021-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022175210.8U Active CN213360862U (en) | 2020-09-28 | 2020-09-28 | High-temperature-resistant high-precision shaft sleeve |
Country Status (1)
| Country | Link |
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| CN (1) | CN213360862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635922A (en) * | 2022-02-17 | 2022-06-17 | 南通特思敏精密科技有限公司 | High temperature resistant high accuracy copper axle sleeve shell |
-
2020
- 2020-09-28 CN CN202022175210.8U patent/CN213360862U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635922A (en) * | 2022-02-17 | 2022-06-17 | 南通特思敏精密科技有限公司 | High temperature resistant high accuracy copper axle sleeve shell |
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