CN216279004U

CN216279004U - Shaft sleeve for oil pump shaft

Info

Publication number: CN216279004U
Application number: CN202122634393.XU
Authority: CN
Inventors: 王挺; 潘雨松
Original assignee: Taizhou Wante Auto Parts Co ltd
Current assignee: Taizhou Wante Auto Parts Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-12
Anticipated expiration: 2031-10-29

Abstract

The utility model provides a shaft sleeve for an oil pump shaft, and belongs to the technical field of oil pump shafts. The oil pump shaft and shaft sleeve assembly solves the problems that the stability is poor and the abrasion is large after the oil pump shaft and the shaft sleeve are assembled. This a axle sleeve for oil pump axle, this oil pump axle includes the tooth axle main part, be provided with the axle sleeve body in the tooth axle main part, the axle sleeve body comprises outer cover and interior cover, interior cover is located the tooth axle main part and is linked firmly rather than mutually, outer cover is located on the interior cover, and pass through rotary unit looks swing joint rather than, it sets up the oil storage chamber to have seted up a plurality of on the periphery wall of outer cover along its circumferencial direction, this outer cover all sets up the intercommunication runner that makes and be linked together between oil storage chamber and the interior cover and the outer cover on being located the tank bottom surface in corresponding oil storage chamber, and this outer cover all is provided with rather than linking firmly in the opening part in corresponding oil storage chamber, and be used for sealed lid one in oil storage chamber. The utility model has the advantages of good stability and reduced abrasion.

Description

Shaft sleeve for oil pump shaft

Technical Field

The utility model belongs to the technical field of oil pump shafts, and relates to a shaft sleeve for an oil pump shaft.

Background

The oil pump is a device for raising the pressure of engine oil and ensuring a certain amount of oil to supply oil to each friction surface, and the structural form of the oil pump can be divided into two types of gear type and rotor type, and the gear type oil pump is divided into internal gear type and external gear type, and the latter is generally called gear type oil pump. The indispensable accessory of oil pump axle during its axle sleeve, the axle sleeve structure in the current oil pump axle is simple relatively, uses the back for a long time, leads to stability to descend easily to aggravate wearing and tearing reduce its life simultaneously.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a shaft sleeve with good stability and reduced abrasion.

The purpose of the utility model can be realized by the following technical scheme: the utility model provides an axle sleeve for oil pump axle, this oil pump axle include the tooth axle main part, the tooth axle main part on be provided with the axle sleeve body, a serial communication port, the axle sleeve body constitute by outer cover and interior cover, interior cover body cover locate the tooth axle main part and link firmly rather than mutually, outer cover body cover locate on the inner cover body, and pass through rotary unit looks swing joint rather than, seted up a plurality of on the periphery wall of outer cover body and set up the oil storage chamber along its circumferencial direction, this outer cover body position all offers the intercommunication runner that makes to be linked together between oil storage chamber and the inner cover body and the outer cover on the tank bottom surface in corresponding oil storage chamber, and the opening part that this outer cover body position in corresponding oil storage chamber all is provided with rather than linking firmly mutually, and is used for the sealed lid one in sealed oil storage chamber.

In the above-mentioned shaft sleeve for an oil pump shaft, the rotary unit comprises two bearings, two bearings are respectively sleeved on two end portions of the inner sleeve body, the right end portion of the inner sleeve body is provided with an extending portion extending outward in the axial direction, a limiting portion protruding outward in the radial direction and used for limiting the position of the corresponding bearing is arranged on the peripheral wall of the extending portion, a limiting ring sleeve fixedly connected with the left end portion of the inner sleeve body and used for limiting the corresponding bearing is arranged on the left end portion of the inner sleeve body, and an anti-wear ring sheet is arranged on the limiting ring sleeve and the corresponding bearing assembly.

In the shaft sleeve for the oil pump shaft, the inner peripheral wall of the outer sleeve body is provided with a plurality of first annular grooves distributed at intervals along the shaft body direction of the outer sleeve body, the outer peripheral wall of the inner sleeve body is provided with a plurality of second annular grooves distributed at intervals along the shaft body direction of the inner sleeve body, the annular grooves and the second annular grooves are arranged in a staggered mode, the right end face of the inner sleeve body is provided with a recessed groove which is recessed inwards in the axial direction, and the inner sleeve body is positioned on the groove bottom face of the corresponding second annular groove and is provided with communicating holes which enable the recessed groove to be communicated with the corresponding second annular groove.

Compared with the prior art, this a shaft sleeve for oil pump axle has following advantage:

1. the axle sleeve body comprises outer cover and interior cover, it sets up the oil storage chamber to have seted up a plurality of on the periphery wall of outer cover along its circumferencial direction, this outer cover all sets up the intercommunication runner that makes and be linked together between oil storage chamber and interior cover and the outer cover on being located the tank bottom face in corresponding oil storage chamber, and the opening part that this outer cover is located corresponding oil storage chamber all is provided with and links firmly rather than mutually, and be used for the sealed lid one in sealed oil storage chamber, the setting of above-mentioned structure, the stability after the assembly has effectively been ensured, also reduce the wearing and tearing of wearing and tearing to the oil pump shaft simultaneously, the life of extension oil pump shaft.

Drawings

Fig. 1 is a schematic sectional view of a shaft sleeve in the shaft sleeve for an oil pump shaft according to the present invention.

Fig. 2 is a schematic perspective view of a gear shaft main body in the shaft sleeve for the oil pump shaft.

In the figure, 1, a gear shaft main body; 2. a shaft sleeve body; 3. an outer casing; 4. an inner sleeve body; 5. an oil storage chamber; 6. a flow passage is communicated; 7. a first sealing cover; 8. a bearing; 9. an extension part; 10. a limiting part; 11. a spacing ring sleeve; 12. an anti-wear ring sheet; 13. a first annular groove; 14. a second annular groove; 15. a recessed groove; 16. and a communicating hole.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the shaft sleeve for the oil pump shaft comprises a gear shaft main body 1, a shaft sleeve body 2 is arranged on the gear shaft main body 1, the shaft sleeve body 2 is composed of an outer sleeve body 3 and an inner sleeve body 4, the inner sleeve body 4 is sleeved on the gear shaft main body 1 and fixedly connected with the gear shaft main body, the outer sleeve body 3 is sleeved on the inner sleeve body 4 and movably connected with the inner sleeve body through a rotating unit to form a friction gap, a plurality of oil storage cavities 5 are arranged on the outer peripheral wall of the outer sleeve body 3 along the circumferential direction of the outer sleeve body, communication flow channels 6 which enable the oil storage cavities 5 to be communicated with the friction gap between the inner sleeve body 4 and the outer sleeve body 3 are arranged on the groove bottom surface of the outer sleeve body 3 corresponding to the oil storage cavities 5, and sealing covers 7 which are fixedly connected with the outer sleeve body 3 and used for sealing the oil storage cavities 5 are arranged at the openings of the corresponding oil storage cavities 5, the rotating unit is composed of two bearings 8, the two bearings 8 are respectively sleeved on two end parts of the inner sleeve body 4, the right end part of the inner sleeve body 4 is provided with an extension part 9 which extends outwards in the axial direction, the peripheral wall of the extension part 9 is provided with a limiting part 10 which protrudes outwards in the radial direction and is used for limiting the position of the corresponding bearing 8, the left end part of the inner sleeve body 4 is provided with a limiting ring sleeve 11 which is fixedly connected with the left end part and is used for limiting the corresponding bearing 8, the limiting ring sleeve 11 and the corresponding bearing 8 are provided with anti-abrasion ring sheets 12, an installation space for installing the corresponding bearing 8 is arranged between the outer sleeve bodies 3 of the inner sleeve body 4, the inner peripheral wall of the outer sleeve body 3 is provided with a plurality of annular grooves I13 which are distributed at intervals along the axial direction of the inner sleeve body, the outer peripheral wall of the inner sleeve body 4 is provided with a plurality of annular grooves II 14 which are distributed at intervals along the axial direction of the inner sleeve body, and a plurality of annular grooves II 14 are staggered with the annular grooves I13, that is to say, the second annular groove 14 is located between two adjacent first annular grooves 13, the right end surface of the inner sleeve 4 is provided with a recessed groove 15 which is recessed inwards in the axial direction, the recessed groove 15 extends to the tail end of the second annular groove 14, and the groove bottom surfaces of the inner sleeve 4 located at the corresponding second annular groove 14 are provided with communicating holes 16 which enable the recessed groove 15 to be communicated with the corresponding second annular groove 14.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A shaft sleeve for an oil pump shaft comprises a gear shaft main body (1), wherein a shaft sleeve body (2) is arranged on the gear shaft main body (1), and is characterized in that the shaft sleeve body (2) consists of an outer sleeve body (3) and an inner sleeve body (4), the inner sleeve body (4) is sleeved on the gear shaft main body (1) and fixedly connected with the gear shaft main body, the outer sleeve body (3) is sleeved on the inner sleeve body (4) and movably connected with the inner sleeve body through a rotating unit, a plurality of oil storage cavities (5) are formed in the peripheral wall of the outer sleeve body (3) along the circumferential direction of the outer sleeve body, communicating flow channels (6) which enable the oil storage cavities (5) to be communicated with the inner sleeve body (4) and the outer sleeve body (3) are formed in the groove bottom surface of the corresponding oil storage cavities (5), and openings of the outer sleeve body (3) corresponding to be fixedly connected with the oil storage cavities (5), and a first sealing cover (7) for sealing the oil storage chamber (5).

2. The shaft sleeve for the oil pump shaft according to claim 1, wherein the rotating unit comprises two bearings (8), the two bearings (8) are respectively sleeved on two ends of the inner sleeve body (4), the right end of the inner sleeve body (4) is provided with an extending portion (9) extending axially and outwardly, a limiting portion (10) protruding radially and outwardly and used for limiting the position of the corresponding bearing (8) is arranged on the outer peripheral wall of the extending portion (9), a limiting ring sleeve (11) fixedly connected with the left end of the inner sleeve body (4) and used for limiting the corresponding bearing (8) is arranged on the left end of the inner sleeve body (4), and an anti-wear ring piece (12) is arranged on the assembly of the limiting ring sleeve (11) and the corresponding bearing (8).

3. The shaft sleeve for the oil pump shaft according to claim 1, wherein a plurality of annular grooves I (13) are formed in the inner peripheral wall of the outer sleeve body (3) and are distributed at intervals along the shaft body direction, a plurality of annular grooves II (14) are formed in the outer peripheral wall of the inner sleeve body (4) and are distributed at intervals along the shaft body direction, the annular grooves II (14) and the annular grooves I (13) are arranged in a staggered manner, an axially inward recessed groove (15) is formed in the right end face of the inner sleeve body (4), and communication holes (16) which enable the recessed groove (15) to be communicated with the corresponding annular groove II (14) are formed in the groove bottom face of the inner sleeve body (4) at the position corresponding to the annular groove II (14).