Oil pump structure with spigot positioning function

Abstract

The utility model belongs to the technical field of transmission oil pumps, and particularly relates to an oil pump structure with spigot positioning, which comprises a main body, a circular groove is arranged on the main body, the circular groove is communicated with the front side wall of the main body, a shaft hole communicated with the circular groove is arranged on the rear side wall of the main body, and a spigot I and a spigot II are symmetrically arranged on the inner side wall of the circular groove up and down. And the front ends of the spigot I and the spigot II are communicated with the front side wall of the main body. The utility model has the advantages that the outer rotor can be quickly positioned with the main body through the spigot I and the spigot II on the main body, the gland can be quickly positioned with the main body and the outer rotor through the spigot III and the spigot IV on the main body, the main body is fixed on the outer side of the gearbox, and the size of the gearbox has small influence on the size of an oil pump; and the oil pump is convenient to quickly mount, dismount and maintain under the action of the spigot I, the spigot II, the spigot III and the spigot IV.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission oil pumps, in particular to an oil pump structure with a stopper for positioning. Background Art

[0002] An oil pump is installed in the transmission to lubricate and cool the transmission elements inside the transmission. However, the internal structure of the transmission is compact and the available space is very narrow. Domestic and foreign transmissions generally install the oil pump on one shaft of the transmission. If it is a main-sub-box structure, it is installed on the sub-box partition of the transmission. A pair of gears is added to the intermediate shaft to drive the oil pump. However, in these arrangements, the oil pump is located inside the large transmission housing, which limits the size of the oil pump. Moreover, due to space limitations, the oil pump is very inconvenient to install, disassemble and repair.

[0003] In order to solve the above problems, we proposed an oil pump structure with stopper positioning. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes an oil pump structure with a stopper for positioning.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oil pump structure with stopper positioning, comprising a main body, the main body is provided with a circular groove, the circular groove is connected with the front side wall of the main body, the rear side wall of the main body is provided with an axial hole connected with the circular groove, the inner side wall of the circular groove is symmetrically provided with stopper one and stopper two, the front ends of the stopper one and stopper two are both connected with the front side wall of the main body, the front side wall of the main body is symmetrically provided with stopper three and stopper four, the stopper three and stopper four are both connected with the circular groove, the inner bottom wall of the stopper three and stopper four is provided with a plurality of threaded holes one, and a movable insert in the axial hole A transmission shaft is provided, and the outer wall fixed sleeve of the transmission shaft is provided with an inner rotor located inside a circular groove, and the inner wall of the circular groove is slidably inserted with an outer rotor, and the upper and lower ends of the outer rotor are provided with outwardly protruding limit blocks, and the limit blocks are respectively adapted to stop opening 1 and stop opening 2, and the front side walls of the limit blocks are provided with slot 1, and the outer walls of the limit blocks are provided with slot 2 connected to slot 1, and a pressure cover is provided on the front side of the outer rotor, and limit plates are symmetrically provided on both sides of the pressure cover, and the two limit plates are respectively adapted to stop opening 3 and stop opening 4 on the main body, and the front side walls of the two limit plates are provided with multiple through holes 1.

[0006] In the above-mentioned oil pump structure with stopper positioning, two insert blocks are symmetrically arranged on the rear side wall of the gland, and the two insert blocks are respectively matched with the two notches.

[0007] In the above-mentioned oil pump structure with stopper positioning, the outer wall of the main body is symmetrically provided with an oil inlet end and an oil outlet end, and the oil inlet end and the oil outlet end are respectively provided with an oil inlet port and an oil outlet port, and the oil inlet port and the oil outlet port are respectively connected with stopper one and stopper two.

[0008] In the above-mentioned oil pump structure with stopper positioning, two through holes 2 are symmetrically provided on the outer wall of the main body.

[0009] In the above-mentioned oil pump structure with stopper positioning, the inner bottom wall of the circular groove and the rear side wall of the gland are both provided with sealing gaskets, and the sealing gaskets are in sliding contact with the front side wall of the inner rotor.

[0010] In the above-mentioned oil pump structure with stopper positioning, the insert block is elastic.

[0011] Compared with the existing technology, the advantages of this oil pump structure with stopper positioning are:

[0012] The outer rotor of the utility model can be quickly positioned with the main body by means of stoppers 1 and 2 on the main body, and the pressure cover can be quickly positioned with the main body and the outer rotor by means of stoppers 3 and 4 on the main body. The main body is fixed on the outside of the gearbox, the size of the gearbox has little effect on the size of the oil pump, and the oil pump is easy to quickly install and disassemble for maintenance under the action of stoppers 1, 2, 3 and 4. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the structural decomposition schematic diagrams of an oil pump structure with stopper positioning proposed by the utility model;

[0014] Figure 2 This is the second structural decomposition diagram of an oil pump structure with stopper positioning proposed by the utility model;

[0015] Figure 3 This is one of the assembly drawings of an oil pump structure with a stopper positioning proposed by the utility model;

[0016] Figure 4 This is the second assembly drawing of an oil pump structure with stopper positioning proposed by the utility model.

[0017] In the figure: 1 main body, 2 circular groove, 3 shaft hole, 4 stopper 2, 5 stopper 4, 6 threaded hole 1, 7 transmission shaft, 8 inner rotor, 9 outer rotor, 10 limit block, 11 slot 2, 12 pressure cover, 13 limit plate, 14 through hole 1, 15 plug block, 16 oil inlet end, 17 oil inlet, 18 through hole 2. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 4 A oil pump structure with stopper positioning comprises a main body 1, the main body 1 is provided with a circular groove 2, the axis of the circular groove 2 is vertically arranged with the front side wall of the main body 1, the circular groove 2 penetrates the front side wall of the main body 1, the rear side wall of the main body 1 is provided with an axial hole 3 connected with the circular groove 2, the center of the axial hole 3 is located at the lower side of the axis of the circular groove 2, that is, the axial hole 3 is eccentrically arranged relative to the circular groove 2, the inner side wall of the circular groove 2 is symmetrically provided with a stopper 1 and a stopper 2 4, the stopper 1 and the stopper 2 4 are both strip-shaped grooves, the front ends of the stopper 1 and the stopper 2 4 are both penetrated with the front side wall of the main body 1, the front side wall of the main body 1 is symmetrically provided with a stopper 3 and a stopper 4 5, the stopper 3 and the stopper 4 5 are flat-mouthed grooves, the stopper 3 and the stopper 4 5 are both connected with the circular groove 2, and the inner bottom wall of the stopper 3 and the stopper 4 5 is provided with a plurality of threaded holes 1 6.

[0020] A transmission shaft 7 is movably inserted in the shaft hole 3, and an inner rotor 8 located inside the circular groove 2 is fixedly sleeved on the outer wall of the transmission shaft 7, and the front side wall of the inner rotor 8 extends out of the end side wall of the transmission shaft 7, and an outer rotor 9 is slidably inserted into the inner wall of the circular groove 2, and the outer rotor 9 is adapted to the circular groove 2, and the lower edge of the inner rotor 8 is close to the inner side wall of the outer rotor 9, and the upper and lower ends of the outer rotor 9 are provided with outwardly protruding limit blocks 10, and the limit blocks 10 are respectively adapted to the stopper 1 and the stopper 2 4, and the front side walls of the limit blocks 10 are each provided with a slot 1, which is communicated with the inner cavity of the outer rotor 9, and the slot 1 is perpendicular to the outer The end face of the rotor 9 is arranged, and the outer wall of the limit block 10 is provided with a slot 2 11 connected to the slot 1, and the slot 2 11 is vertically arranged. A pressure cover 12 is arranged on the front side of the outer rotor 9, and the limit plates 13 are symmetrically arranged on both sides of the pressure cover 12. The two limit plates 13 are respectively adapted to the stopper 3 and the stopper 4 5 on the main body 1. The front side walls of the two limit plates 13 are provided with a plurality of through holes 14, and a fastening bolt 1 is movably inserted in the through hole 14. The fastening bolt 1 is screwed into the threaded hole 1 6 on the stopper 3 and the stopper 4 5. After tightening, the pressure cover 12 can be fixed on the main body 1.

[0021] The rear side wall of the gland 12 is symmetrically provided with two plug blocks 15, which are respectively adapted to the two notches 1. The plug blocks 15 are elastic. After the limit plate 13 is aligned with the stopper 3 and the stopper 4 5 respectively, the two plug blocks 15 on the gland 12 are also aligned with the two notches respectively. As the gland 12 is fixed to the main body 1, the plug blocks 15 will also be inserted into the notch 1 of the limit block 10. The elastic plug blocks 15 can be squeezed and fitted with the inner wall of the notch 1 to achieve sealing of the front end of the notch 1. The outer side wall of the main body 1 is symmetrically provided with oil inlet ends 16 up and down. And the oil outlet end, the oil inlet end 16 and the oil outlet end are respectively provided with an oil inlet 17 and an oil outlet, the oil inlet 17 and the oil outlet are respectively connected with the stop 1 and the stop 2 4, because the two slots 2 11 on the limit block 10 are respectively located in the stop 1 and the stop 2 4, the oil can enter the inner cavity of the outer rotor 9 from the oil inlet 17 through the slot 2 11 and the stop 1, the oil in the inner cavity of the outer rotor 9 can enter the oil outlet through the stop 2 4 and the other slot 2 11, under the rotation of the transmission shaft 7, the inner rotor 8 rotates in the outer rotor 9, realizing the circulation of the oil circuit.

[0022] Two through holes 18 are symmetrically provided on the outer wall of the main body 1, and a threaded hole 2 corresponding to the through hole 18 is provided on the outer shell of the gearbox. A fastening bolt 2 is movably inserted in the through hole 18. The fastening bolt 2 is screwed into the threaded hole 2. After tightening, the main body 1 will be fixed to the gearbox, and the inner bottom wall of the circular groove 2 and the rear side wall of the pressure cover 12 are provided with sealing gaskets. The sealing gaskets are in sliding contact with the front side wall of the inner rotor 8 to prevent the oil in the inner cavity of the outer rotor 9 from overflowing from both ends. Since the main body 1 is fixed to the outside of the gearbox, as long as the threaded hole 2 is aligned with the through hole 18, the size of the gearbox has little effect on the size of the oil pump, and under the action of the stopper 1, stopper 4, stopper 3 and stopper 4 5, the oil pump can quickly complete the positioning between the outer rotor 9 and the main body 1, and between the pressure cover 12 and the main body 1 and the outer rotor 9, which is convenient for the rapid installation, disassembly and maintenance of the oil pump.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil pump structure with stopper positioning, comprising a main body (1), characterized in that: The main body (1) is provided with a circular groove (2), and the circular groove (2) is connected to the front side wall of the main body (1); the rear side wall of the main body (1) is provided with an axial hole (3) connected to the circular groove (2); the inner side wall of the circular groove (2) is symmetrically provided with a stopper 1 and a stopper 2 (4); the front ends of the stopper 1 and the stopper 2 (4) are both connected to the front side wall of the main body (1); the front side wall of the main body (1) is symmetrically provided with a stopper 3 and a stopper 4 (5); the stopper 3 and the stopper 4 (5) are both connected to the circular groove (2); the inner bottom wall of the stopper 3 and the stopper 4 (5) is provided with a plurality of threaded holes 1 (6); a transmission shaft (7) is movably inserted in the axial hole (3); the outer wall of the transmission shaft (7) is provided with a fixed sleeve located in the circular groove (2); The inner rotor (8) of the outer rotor (9) is slidably inserted into the inner wall of the circular groove (2), and the upper and lower ends of the outer rotor (9) are provided with outwardly protruding limit blocks (10), and the limit blocks (10) are respectively matched with the stop opening 1 and the stop opening 2 (4). The front side wall of the limit block (10) is provided with a slot opening 1, and the outer wall of the limit block (10) is provided with a slot opening 2 (11) connected with the slot opening 1. The front side of the outer rotor (9) is provided with a pressure cover (12), and the two sides of the pressure cover (12) are symmetrically provided with limit plates (13), and the two limit plates (13) are respectively matched with the stop opening 3 and the stop opening 4 (5) on the main body (1), and the front side walls of the two limit plates (13) are provided with a plurality of through holes 1 (14).

2. The oil pump structure with stopper positioning according to claim 1, characterized in that: The rear side wall of the pressure cover (12) is symmetrically provided with two inserting blocks (15), and the two inserting blocks (15) are respectively matched with the two notches.

3. The oil pump structure with stopper positioning according to claim 1, characterized in that: The outer wall of the main body (1) is symmetrically provided with an oil inlet end (16) and an oil outlet end, and the oil inlet end (16) and the oil outlet end are respectively provided with an oil inlet port (17) and an oil outlet port, and the oil inlet port (17) and the oil outlet port are respectively connected to the first stop port and the second stop port (4).

4. The oil pump structure with stopper positioning according to claim 1, characterized in that: The outer wall of the main body (1) is symmetrically provided with two second through holes (18).

5. The oil pump structure with stopper positioning according to claim 1, characterized in that: The inner bottom wall of the circular groove (2) and the rear side wall of the pressure cover (12) are both provided with sealing gaskets, and the sealing gaskets are in sliding contact with the front side wall of the inner rotor (8).

6. The oil pump structure with stopper positioning according to claim 2, characterized in that: The insert block (15) is elastic.

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