CN212251028U

CN212251028U - Oil pump gear

Info

Publication number: CN212251028U
Application number: CN202020672357.5U
Authority: CN
Inventors: 陈誉之
Original assignee: Wenling Huirong Machinery Co ltd
Current assignee: Wenling Huirong Machinery Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-29
Anticipated expiration: 2030-04-27

Abstract

The utility model provides an oil pump gear belongs to drive gear technical field. It has solved the easy wearing and tearing of current gear teeth of a cogwheel and has influenced life's problem. This oil pump gear includes gear body and the teeth of a cogwheel that a plurality of set up in the gear body outside, all be provided with the inside sunken recess of axial on the both sides wall of the teeth of a cogwheel, the teeth of a cogwheel is located corresponding recess and all is provided with the corresponding recess of slip embedding and detachable embedding piece, the both sides wall of embedding piece all is provided with the outside arch of axial and imbeds the extension portion in the teeth of a cogwheel, the teeth of a cogwheel is located two inside walls of recess and all sets up the embedded groove that supplies the installation of the corresponding slip embedding of extension portion and prevent that the embedding piece radially breaks away from the teeth of a cogwheel, teeth of a cogwheel one end is located corresponding embedded groove and all is provided with the stopper that links firmly mutually and supply the embedding piece to support the installation. The utility model has the advantages of good wear-resisting performance and long service life.

Description

Oil pump gear

Technical Field

The utility model belongs to the technical field of drive gear, a oil pump gear is related to.

Background

Gears are wheel-like mechanical parts that transmit torque by virtue of meshing of teeth. The gear can realize the functions of changing the rotating speed and the torque, changing the moving direction, changing the moving form and the like through being matched with other toothed mechanical parts (such as another gear, a rack and a worm). Because of the advantages of high transmission efficiency, accurate transmission ratio, large power range and the like, the gear mechanism is widely applied to industrial products, and the design and manufacturing level of the gear mechanism can directly influence the quality of the industrial products. However, in the use process of the existing oil pump gear, the abrasion is easy to occur, so that the service life of the gear is reduced.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide an oil pump gear that abrasionproof performance is good and long service life.

The purpose of the utility model can be realized by the following technical proposal: an oil pump gear comprises a gear body and a plurality of gear teeth arranged on the outer side of the gear body, it is characterized in that two side walls of the gear teeth are respectively provided with a groove which is axially inwards sunken, the gear teeth are respectively provided with a detachable embedding block which is embedded into the corresponding groove in a sliding way in the corresponding groove, the two side walls of the embedding block are respectively provided with an expanding part which is axially and outwards protruded and is embedded into the gear teeth, the two inner side walls of the gear teeth positioned in the groove are respectively provided with an embedded groove for the corresponding expansion part to be embedded and installed in a sliding way and preventing the embedded block from being separated from the gear teeth in the radial direction, one end of the gear teeth is positioned in the corresponding embedded groove and is provided with a limiting block which is fixedly connected with the gear teeth and is used for the embedded block to be abutted and installed, the other end of the gear teeth is positioned at the corresponding embedded block and is provided with a limiting component which is fixedly connected with the gear teeth and used for limiting the position of the embedded block.

In the oil pump gear, the outer side wall of the embedded block and the side wall of the corresponding gear tooth are positioned on the same horizontal plane, the outer side wall of the embedded block is coated with a wear-resistant layer, and the wear-resistant layer is formed by sintering tungsten carbide particles, single crystal diamond and bonding metal through high-temperature infiltration at 1200 ℃.

In the oil pump gear, the limiting block and the gear teeth are integrally arranged.

In an above-mentioned oil pump gear, the up end of stopper on be provided with the protruding post that upwards arch and embedding corresponding extension are inside axial, the up end of stopper on still be provided with the blotter that the cover was located protruding post and was prevented collision and wear.

In foretell oil pump gear, spacing subassembly by inlay locate the sealed piece in the corresponding teeth of a cogwheel and one run through the sealed piece and both ends wear to go into respectively the connecting axle in the teeth of a cogwheel and constitute, the up end of this sealed piece is located same horizontal plane with the up end of the corresponding teeth of a cogwheel, and the length of this sealed piece is the same with the length B between the double-phase corresponding embedded groove, the teeth of a cogwheel be located and all seted up the mounting hole that supplies the connecting axle to wear to enter the installation on the preceding terminal surface of corresponding connecting axle.

Compared with the prior art, the oil pump gear has the following advantages:

1. the teeth of a cogwheel are located corresponding recess and all are provided with the corresponding recess of slip embedding and detachable embedding piece, the both sides wall of embedding piece all is provided with the outside arch of axial and imbeds the extension portion in the teeth of a cogwheel, the teeth of a cogwheel is located all to set up on two inside walls of recess and supplies the installation of corresponding extension portion slip embedding and prevent the embedded groove of the radial break away from the teeth of a cogwheel of an cogwheel, teeth of a cogwheel one end is located corresponding embedded groove and all is provided with and links firmly and supply the embedded piece to support the stopper of installation mutually with the teeth of a cogwheel, the teeth of a cogwheel other end is located corresponding embedding piece department and all is provided with and links firmly and be used for restricting the spacing subassembly of embedding piece position mutually with the teeth of a cogwheel, the setting of.

Drawings

Fig. 1 is a schematic perspective view of the oil pump gear.

Fig. 2 is an enlarged view of circle C of fig. 1 in the present oil pump gear.

Fig. 3 is a schematic perspective view of the insertion block and the limiting component in the oil pump gear.

In the figure, 1, a gear body; 2. gear teeth; 3. a groove; 4. embedding a block; 5. an expansion section; 6. a groove is embedded; 7. a limiting block; 8. a limiting component; 9. a raised post; 10. a cushion pad; 11. a sealing block; 12. a connecting shaft; 13. and (7) installing holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1, 2 and 3, the oil pump gear comprises a gear body 1 and a plurality of gear teeth 2 arranged outside the gear body 1, grooves 3 which are axially inwards recessed are respectively arranged on two side walls of the gear teeth 2, two ends of each groove 3 are respectively communicated with the outer parts of two ends of the corresponding gear teeth 2, each gear tooth 2 is positioned in the corresponding groove 3 and is provided with a detachable embedded block 4 which is embedded in the corresponding groove 3 in a sliding manner, two end surfaces of each embedded block 4 are respectively positioned on the same horizontal plane with two end surfaces of the corresponding gear teeth 2, two side walls of each embedded block 4 are respectively provided with an expansion part 5 which is axially outwards raised and is embedded in the gear teeth 2, two inner side walls of the gear teeth 2, which are positioned in the grooves 3, are respectively provided with embedded grooves 6 which are used for the sliding embedding installation of the corresponding expansion parts 5 and preventing the embedded blocks 4 from being radially separated from the gear teeth 2, one end of each gear teeth 2, which is positioned in the, the other end of the teeth of a cogwheel 2 is located corresponding embedded piece 4 department and all is provided with the spacing subassembly 8 that links firmly and be used for restricting embedded piece 4 position mutually with the teeth of a cogwheel 2, spacing subassembly 8 is by embedding locate the sealed piece 11 in the corresponding teeth of a cogwheel 2 and one run through sealed piece 11 and both ends respectively wear into the connecting axle 12 of the teeth of a cogwheel 2 and constitute, the up end of sealed piece 11 is located same horizontal plane with the up end of corresponding teeth of a cogwheel 2, the length of sealed piece 11 is the same with the length B between the double-phase corresponding embedded groove 6, the mounting hole 13 that supplies connecting axle 12 to wear into the installation all is seted up on the preceding terminal surface that the teeth of a.

In order to improve the anti-abrasion effect, the outer side wall of the embedded block 4 and the side wall of the corresponding gear tooth 2 are located on the same horizontal plane, the outer side wall of the embedded block 4 is coated with an abrasion-resistant layer, and the abrasion-resistant layer is formed by sintering tungsten carbide particles, single crystal diamond and bonding metal through high-temperature infiltration at 1200 ℃. The contents are as follows: 50-90% of tungsten carbide particles, 2-30% of diamond powder and the balance of bonding metal.

As preferred structure, stopper 7 and the teeth of a cogwheel 2 set up as an organic whole and form, stopper 7 the internal perisporium all be located same horizontal plane with the inside wall in the corresponding recess 3, and stopper 7's lower terminal surface is located same horizontal plane with the lower terminal surface of the corresponding teeth of a cogwheel 2.

Further saying in detail, for better assembly and prevent assembly back collision wearing and tearing, be provided with the protruding post 9 that upwards is protruding and imbed in the corresponding extension 5 on the up end of stopper 7, still be provided with the blotter 10 that the cover was located on protruding post 9 and was prevented collision wearing and tearing on the up end of stopper 7, and the both ends face of blotter 10 is laminated with the terminal surface of corresponding stopper 7 and extension 5 respectively mutually, set up on the extension 5 with stopper 7 inconsistent complex breach.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An oil pump gear comprises a gear body (1) and a plurality of gear teeth (2) arranged outside the gear body (1), and is characterized in that two side walls of the gear teeth (2) are provided with grooves (3) with inward sunken axial directions, the gear teeth (2) are arranged in the corresponding grooves (3) and are respectively provided with a detachable embedded block (4) embedded in the corresponding groove (3) in a sliding manner, two side walls of the embedded block (4) are respectively provided with an expansion part (5) protruding outwards in the axial direction and embedded in the gear teeth (2), two inner side walls of the gear teeth (2) are respectively provided with an embedded groove (6) for installing the corresponding expansion part (5) in a sliding manner and preventing the embedded block (4) from radially separating from the gear teeth (2), one end of the gear teeth (2) is arranged in the corresponding embedded groove (6) and is respectively provided with a limiting block (7) fixedly connected with the gear teeth (2) and used for the embedded block (4) to abut against the installation, the other end of the gear teeth (2) is positioned at the corresponding embedded block (4) and is provided with a limiting component (8) which is fixedly connected with the gear teeth (2) and used for limiting the position of the embedded block (4).

2. The oil pump gear according to claim 1, characterized in that the outer side wall of the embedded block (4) and the side wall of the corresponding gear tooth (2) are positioned on the same horizontal plane, and the outer side wall of the embedded block (4) is coated with a wear-resistant layer.

3. The oil pump gear according to claim 1, wherein the limiting block (7) and the gear teeth (2) are integrally formed.

4. The oil pump gear according to claim 1, wherein the upper end surface of the stopper (7) is provided with a protruding column (9) which protrudes upward in the axial direction and is embedded into the corresponding expanding portion (5), and the upper end surface of the stopper (7) is further provided with a cushion pad (10) which is sleeved on the protruding column (9) and prevents collision and abrasion.

5. The oil pump gear according to claim 1, wherein the limiting component (8) comprises a sealing block (11) embedded in the corresponding gear teeth (2) and a connecting shaft (12) penetrating through the sealing block (11) and having two ends penetrating into the gear teeth (2) respectively, the upper end face of the sealing block (11) and the upper end face of the corresponding gear teeth (2) are located on the same horizontal plane, the length of the sealing block (11) is the same as the length B between the two corresponding embedded grooves (6), and the front end face of the gear teeth (2) located on the corresponding connecting shaft (12) is provided with mounting holes (13) for the connecting shaft (12) to penetrate into for mounting.