CN220748786U - Oil pump shaft - Google Patents
Oil pump shaft Download PDFInfo
- Publication number
- CN220748786U CN220748786U CN202322453123.8U CN202322453123U CN220748786U CN 220748786 U CN220748786 U CN 220748786U CN 202322453123 U CN202322453123 U CN 202322453123U CN 220748786 U CN220748786 U CN 220748786U
- Authority
- CN
- China
- Prior art keywords
- shaft
- oil pump
- pump shaft
- axle sleeve
- axis body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 8
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model provides an oil pump shaft, and belongs to the technical field of machinery. The oil pump shaft structure solves the problems that an existing oil pump shaft structure is integrated, and after abrasion, the oil pump shaft needs to be replaced integrally, so that replacement cost is high. The oil pump shaft comprises a shaft body, wherein a shaft sleeve is sleeved on the shaft body, the shaft sleeve extends outwards in an axial direction and is integrally connected with a transmission part, a positioning groove for the shaft body to stretch in a positioning way is formed in the shaft sleeve, a convex positioning table is arranged on the surface of the end part of the shaft body, which stretches into the positioning groove, a positioning groove for the coupling of the positioning table is formed in the wall of the positioning groove, the shaft body is radially limited in the shaft sleeve through the coupling of the positioning groove and the positioning table, an installation part is radially outwards protruded from the outer wall of the shaft body, and the installation part is abutted to the shaft sleeve and is fixedly connected with the shaft sleeve through a screw. The utility model has the advantages of reducing the replacement cost and enhancing the heat dissipation.
Description
Technical Field
The utility model belongs to the technical field of machinery, and relates to an oil pump shaft.
Background
At present, after the oil pump transmission shaft is installed on the pump body, friction is easy to generate between the transmission part of the oil pump shaft and the pump body when the oil pump shaft rotates to work, abrasion can be caused for a long time, and the transmission part of the oil pump shaft and the shaft are mostly of an integrated structure, so that the whole oil pump shaft is replaced during replacement, and the replacement cost is high.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a novel oil pump shaft with a transmission part capable of being independently replaced.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides an oil pump shaft, includes the axis body, its characterized in that, the axis body on cup joint the axle sleeve, the outside axial extension of axle sleeve and an organic whole be connected with drive division, the axle sleeve on set up the constant head tank that supplies the axis body location to stretch into, the axis body on stretch into the tip surface of constant head tank have bellied locating bench, the constant head tank cell wall on have the constant head tank that supplies the coupling of locating bench, make the axis body radially limit in the axle sleeve through the coupling of constant head tank and locating bench, the radial evagination of axis body outer wall have a installation department, installation department butt is on the axle sleeve and pass through screw fixed connection with the axle sleeve.
In the oil pump shaft, a plurality of heat dissipation grooves are formed in the outer wall of the shaft sleeve at positions close to the transmission part.
In the oil pump shaft, the heat dissipation groove is obliquely formed from outside to inside.
Compared with the prior art, the oil pump shaft has the advantages of reducing the replacement cost and enhancing heat dissipation.
Drawings
Fig. 1 is a schematic perspective view of the oil pump shaft.
FIG. 2 is a schematic cross-sectional view of the present oil pump shaft.
Fig. 3 is a schematic perspective view of the shaft body.
In the figure, 1, a shaft body; 2. a shaft sleeve; 3. a transmission part; 4. a positioning table; 5. a mounting part; 6. a screw; 7. a heat sink.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, 2 and 3, the oil pump shaft comprises a shaft body 1, a shaft sleeve 2 is sleeved on the shaft body 1, the shaft sleeve 2 extends outwards and axially and is integrally connected with a transmission part 3, a positioning groove for positioning and extending in the shaft body 1 is formed in the shaft sleeve 2, a positioning table 4 protruding is arranged on the surface of the end part of the shaft body 1 extending in the positioning groove, a positioning groove for coupling the positioning table 4 is formed in the wall of the positioning groove, the shaft body 1 is radially limited in the shaft sleeve 2 through the coupling of the positioning groove and the positioning table 4, an installation part 5 is radially outwards protruded on the outer wall of the shaft body 1, the installation part 5 is abutted on the shaft sleeve 2 and fixedly connected with the shaft sleeve 2 through a screw 6, the positioning table 4 and the positioning groove are coupled to realize radial positioning of the shaft body 1 and the shaft sleeve 2, and then the screw 6 is locked for fixing.
Preferably, a plurality of heat dissipation grooves 7 are formed in the outer wall of the shaft sleeve 2 at positions close to the transmission part 3.
Further, the heat dissipation grooves 7 are formed obliquely from outside to inside, and heat generated under the high-speed rotation of the transmission part 3 is dissipated outwards along with the oblique formed heat dissipation grooves 7.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although terms such as the shaft body 1, the shaft housing 2, the transmission part 3, the positioning table 4, the mounting part 5, the screw 6, the heat sink 7, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (3)
1. The utility model provides an oil pump shaft, includes axis body (1), its characterized in that, axis body (1) on cup joint axle sleeve (2), outside axial extension of axle sleeve (2) and an organic whole be connected with drive portion (3), axle sleeve (2) on offer the constant head tank that supplies axis body (1) location to stretch into, axis body (1) on stretch into the tip surface of constant head tank and have bellied locating platform (4), the constant head tank cell wall on have the constant head tank that supplies the coupling of locating platform (4), make axis body (1) radially limit in axle sleeve (2) through the coupling of constant head tank and locating platform (4), axis body (1) outer wall radial evagination have installation department (5), installation department (5) butt are on axle sleeve (2) and pass through screw (6) fixed connection with axle sleeve (2).
2. The oil pump shaft according to claim 1, wherein a plurality of heat dissipation grooves (7) are formed in the outer wall of the shaft sleeve (2) at positions close to the transmission part (3).
3. An oil pump shaft according to claim 2, characterized in that the heat sink (7) is inclined from outside to inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322453123.8U CN220748786U (en) | 2023-09-08 | 2023-09-08 | Oil pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322453123.8U CN220748786U (en) | 2023-09-08 | 2023-09-08 | Oil pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748786U true CN220748786U (en) | 2024-04-09 |
Family
ID=90550799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322453123.8U Active CN220748786U (en) | 2023-09-08 | 2023-09-08 | Oil pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220748786U (en) |
-
2023
- 2023-09-08 CN CN202322453123.8U patent/CN220748786U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |