CN214698315U - Oil pump with side-seepage prevention function - Google Patents
Oil pump with side-seepage prevention function Download PDFInfo
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- CN214698315U CN214698315U CN202023297386.7U CN202023297386U CN214698315U CN 214698315 U CN214698315 U CN 214698315U CN 202023297386 U CN202023297386 U CN 202023297386U CN 214698315 U CN214698315 U CN 214698315U
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- shaped plate
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- oil
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Abstract
The utility model discloses an oil pump with side seepage prevention function, which comprises a shell and an inner gear ring; the sealing device replaces the shell to be in contact with the inner gear ring, the sealing device comprises an arc-shaped plate, the outer arc surface of the arc-shaped plate is fixedly connected with the shell, the inner arc surface of the arc-shaped plate is in contact with the inner gear ring, the sealing device further comprises a piston, a plurality of oil ports are formed in the arc-shaped plate along the radial direction, a connecting groove is formed in the inner arc surface of the arc-shaped plate and used for being communicated with the oil ports, the piston is correspondingly embedded into the oil ports, the piston can slide along the side wall of the arc-shaped plate in the oil ports, an elastic part is arranged in the oil ports, two ends of the elastic part are respectively abutted against the bottom of the piston and the arc-shaped plate wall in the oil ports, and the elastic part is in a compression state; meanwhile, the arc-shaped plate and the inner gear ring are kept in contact with each other all the time by arranging the piston and the elastic piece, so that the sealing performance of the arc-shaped plate and the inner gear ring is improved.
Description
Technical Field
The utility model relates to an oil pump field relates to an oil pump with prevent side and ooze function.
Background
As is well known, an oil pump is used in a lubricating system of an automobile to forcibly feed oil to moving surfaces of various parts of an engine after the oil is raised to a certain pressure. The oil pump is divided into a gear type oil pump and a rotor type oil pump according to the structural form.
The existing gear type oil pump discharges high-pressure oil out of an oil pump shell through an inner gear ring, but in the process, high-speed friction is generated between an outer arc surface of the inner gear ring and the shell, so that the thickness of the inner gear ring and the shell becomes thin, a gap becomes large, and high-pressure oil is laterally leaked.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing an oil pump with prevent side and ooze function solves the problem that the friction leads to the high pressure oil side to ooze between casing and the ring gear.
The technical scheme is as follows: the utility model relates to an oil pump with side seepage prevention function, which comprises a shell and an inner gear ring; and a sealing device is arranged between the shell and the inner gear ring and replaces the shell to be in contact with the inner gear ring.
Furthermore, the sealing device comprises an arc-shaped plate, the outer arc surface of the arc-shaped plate is fixedly connected with the shell, and the inner arc surface of the arc-shaped plate is in contact with the inner gear ring.
Furthermore, the sealing device also comprises a piston, the arc-shaped plate is provided with a plurality of oil ports along the radial direction, the inner arc surface of the arc-shaped plate is provided with a connecting groove, the connecting groove is used for communicating the oil ports, the piston is correspondingly embedded into the oil ports, and the piston can slide along the side wall of the arc-shaped plate in the oil ports.
Furthermore, be provided with the elastic component in the hydraulic fluid port, the elastic component both ends respectively with the arc bulkhead butt in piston bottom and the hydraulic fluid port, the elastic component is in compression state.
Further, the elastic member is a spring.
Has the advantages that: compared with the prior art, the utility model: the oil pump solves the problems of abrasion between the shell and the inner gear ring and side leakage of high-pressure oil through the sealing device; meanwhile, the arc-shaped plate and the inner gear ring are kept in contact with each other all the time by arranging the piston and the elastic piece, so that the sealing performance of the arc-shaped plate and the inner gear ring is improved.
Drawings
Fig. 1 is a schematic structural view of an oil pump having a side leakage prevention function.
Detailed Description
As shown in fig. 1, an oil pump with a side leakage prevention function includes a housing 1 and an inner gear ring 2; a sealing device 3 is arranged between the shell 1 and the inner gear ring 2, and the sealing device 3 is in contact with the inner gear ring 2 instead of the shell 1.
The sealing device 3 comprises an arc plate 31, the outer arc surface of the arc plate 31 is fixedly connected with the shell 1, and the inner arc surface is contacted with the inner gear ring 2.
The sealing device 3 further comprises a piston 32, the arc plate 31 is provided with a plurality of oil ports 4 along the radial direction, the inner arc surface of the arc plate 31 is provided with a connecting groove 5, the connecting groove 5 is used for being communicated with the oil ports 4, the piston 32 is correspondingly embedded into the oil ports 4, and the piston 32 can slide along the side wall of the arc plate 31 in the oil ports 4.
An elastic piece 6 is arranged in the oil port 4, two ends of the elastic piece 6 are respectively abutted against the bottom of the piston 32 and the wall of the arc-shaped plate 31 in the oil port 4, the elastic piece 6 is in a compressed state, and the elastic piece 6 is a spring.
Specifically, high-pressure oil is discharged in the process of rotating the inner gear ring 2, the high-pressure oil is discharged out of the oil pump shell 1 through a hole in the middle of the arc-shaped plate 31, the high-pressure oil is separated from surrounding low-pressure areas through the arc-shaped plate 31, in order to guarantee sealing between the arc-shaped plate 31 and the inner gear ring 2, pistons 32 in three oil holes of the arc-shaped plate 31 are pushed by the high-pressure oil discharged by the inner gear ring 2 and are extruded by a spring, the arc-shaped plate 31 is tightly propped against the inner gear ring 2, sealing effect is guaranteed, meanwhile, leakage caused by abrasion of the arc-shaped plate 31 is effectively compensated, and the service life of an oil pump is prolonged.
Claims (5)
1. An oil pump with a side leakage prevention function comprises a shell (1) and an inner gear ring (2); the novel gear transmission is characterized in that a sealing device (3) is arranged between the shell (1) and the inner gear ring (2), and the sealing device (3) replaces the shell (1) to be in contact with the inner gear ring (2).
2. The oil pump with the function of preventing the lateral seepage according to the claim 1, characterized in that the sealing device (3) comprises an arc-shaped plate (31), the outer arc surface of the arc-shaped plate (31) is fixedly connected with the shell (1), and the inner arc surface is contacted with the inner gear ring (2).
3. The oil pump with the side leakage prevention function according to claim 2, wherein the sealing device (3) further comprises a piston (32), the arc plate (31) is provided with a plurality of oil ports (4) along the radial direction, the inner arc surface of the arc plate (31) is provided with a connecting groove (5), the connecting groove (5) is used for communicating the oil ports (4), the piston (32) is correspondingly embedded in the oil ports (4), and the piston (32) can slide along the side wall of the arc plate (31) in the oil ports (4).
4. The oil pump with the lateral seepage preventing function according to claim 3, characterized in that an elastic part (6) is arranged in the oil port (4), two ends of the elastic part (6) are respectively abutted against the bottom of the piston (32) and the wall of the arc-shaped plate (31) in the oil port (4), and the elastic part (6) is in a compressed state.
5. The oil pump with the function of preventing the lateral seepage according to claim 4, characterized in that the elastic member (6) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023297386.7U CN214698315U (en) | 2020-12-30 | 2020-12-30 | Oil pump with side-seepage prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023297386.7U CN214698315U (en) | 2020-12-30 | 2020-12-30 | Oil pump with side-seepage prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214698315U true CN214698315U (en) | 2021-11-12 |
Family
ID=78561019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023297386.7U Active CN214698315U (en) | 2020-12-30 | 2020-12-30 | Oil pump with side-seepage prevention function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214698315U (en) |
-
2020
- 2020-12-30 CN CN202023297386.7U patent/CN214698315U/en active Active
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