CN218894689U

CN218894689U - Oil pump capable of reducing abrasion

Info

Publication number: CN218894689U
Application number: CN202223405991.0U
Authority: CN
Inventors: 郦强
Original assignee: Changzhou Endufa New Energy Automobile Technology Co ltd
Current assignee: Changzhou Endufa New Energy Automobile Technology Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-21
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses an oil pump capable of reducing abrasion, which comprises a pump body and a pump cover arranged at one end of the pump body, wherein a pump shaft is arranged at the middle position of the inner side of the pump cover, one end of the pump shaft extends into the pump body, an inner rotor is arranged at the outer side of the pump shaft in the pump body, and an outer rotor is arranged in the pump body at the outer side of the inner rotor; through the use of mounting panel, bull stick and spin, make it support the pump shaft, supplementary pump shaft rotates simultaneously, reduces the friction loss with the pump body between, improves its life.

Description

Oil pump capable of reducing abrasion

Technical Field

The utility model relates to the technical field of oil pumps, in particular to an oil pump capable of reducing abrasion.

Background

Engine oil is delivered to the fittings of the engine parts, and the action of an engine oil pump in a lubrication system: the engine oil is forced to be pressed onto the moving surfaces of all parts of the engine after being raised to a certain pressure. The structural form of the oil pump can be divided into gear type and rotor type. The gear type oil pump is further classified into an internal gear type and an external gear type, and the latter is generally called a gear type oil pump. The gear type engine oil pump has the characteristics of reliable operation, simple structure, convenient manufacture and higher oil pumping pressure, and is widely adopted. The working principle of the engine oil pump is that when the engine works, the driving gear on the cam shaft drives the transmission gear of the engine oil pump, so that the driving gear fixed on the driving gear shaft rotates, and the driven gear is driven to rotate in the opposite direction, and engine oil is sent to the oil outlet cavity from the oil inlet cavity along the tooth gap and the pump wall. The oil inlet cavity forms low pressure to generate suction force to suck the engine oil in the oil pan into the oil cavity. As the driving gear and the driven gear rotate continuously, the engine oil is continuously pumped to a desired location. Oil pumps are increasingly used in internal combustion engines. Meanwhile, the solar energy and the liquid crystal display have certain functions in the engineering fields of semiconductors, solar energy, LCD and the like. With the development of processing technology, an oil pump for an automobile, namely a cycloidal rotor pump, is applied to a sewing machine, and particularly to some types of fully-closed automatic lubrication systems, such as an overedger and a flat seaming machine.

The engine oil pump mainly comprises a pump body, a gear set and a pump shaft, wherein the gear set is arranged on the pump shaft, the pump shaft is arranged on the pump body in a penetrating way, the existing pump shafts are of a single supporting structure, rolling friction is adopted between the existing pump shafts and the pump body, and the contact part of the pump body is easy to damage in the high-speed rotation of the pump shaft, so that the pump body leaks oil, and the service life of the oil pump is influenced; in addition, one side of the shaft hole on the pump body is easy to be worn greatly, so that the roundness of the shaft hole is damaged, vibration of the oil pump during operation is easy to be caused, and meanwhile, the tightness of the oil pump is easy to be damaged, and the service life of the oil pump is influenced.

Disclosure of Invention

The present utility model is directed to an oil pump capable of reducing wear, and solves the above-mentioned problems of the related art.

In order to solve the technical problems, the utility model provides the following technical scheme: can reduce the oil pump of wearing and tearing, including the pump body, the pump cover that pump body one end was equipped with, the pump shaft that the inboard intermediate position of pump cover was equipped with, the one end of pump shaft extends to in the pump body, the pump shaft outside is equipped with the inner rotor in the pump body, the inside external rotor that is equipped with of inner rotor outside pump body, outer rotor outer wall and the laminating of pump body inside wall, both sides are equipped with oil inlet and oil-out respectively in the pump cover, keep away from pump cover side wall in the pump body and seted up the cavity, be equipped with the protection machanism who is connected with the pump shaft in the cavity, bulge just be located protection machanism and be close to pump cover one side and be equipped with assist mechanism, protection machanism includes the guard ring that the pump shaft outside was equipped with in the cavity, the rail groove has been seted up to the symmetry between the inboard portion of pump shaft and the pump shaft outside wall, be equipped with a plurality of balls in the rail groove, assist mechanism mounting panel, and mounting panel symmetry set up in the cavity bulge inslot, just mounting panel lateral wall face and cavity inside wall fixed connection.

Further, protection machanism still includes the branch that the symmetry was equipped with in the cavity guard ring outside, the one end and the cavity inside wall of branch are connected, guard ring outside branch outside cover is equipped with the baffle, branch outside cover is equipped with the spring between baffle and the cavity inside wall in the cavity, the removal groove has been seted up to guard ring outside wall, be equipped with spherical gyro wheel in the removal groove, and spherical gyro wheel is connected with branch one end, spherical gyro wheel passes through axle and branch one end swing joint, through the protection machanism who is equipped with, makes it can make the pump shaft not with pump body direct contact, makes rolling friction between pump shaft and the guard ring simultaneously, also can make the guard ring carry out relative rotation simultaneously, makes wear between its and the pump shaft more even, reduces friction loss, also can cushion its atress through the spring simultaneously and offset, avoids vibration to influence the oil pump leakproofness, influences its life.

Further, the auxiliary mechanism further comprises a plurality of rotating rods movably mounted between mounting plates on the outer sides of the pump shafts in the cavities, rolling balls are sleeved on the outer sides of the rotating rods between the mounting plates, and the rotating rods can support the pump shafts through the auxiliary mechanism and limit the rotating rods at the same time, so that the operation of the auxiliary mechanism is more stable, and friction loss is reduced.

Furthermore, a plurality of seepage grooves are symmetrically arranged in the protection ring, the seepage grooves are respectively communicated with the rail groove and the movable groove, and the use of the seepage grooves enables engine oil to flow into the movable groove and enables the ball and the spherical roller to roll on the protection ring better, so that friction force is reduced.

Further, the mounting plate is of an annular structure, and the rotating rod is rotatably connected with the mounting plate through a bearing so as to support the rolling ball.

Further, two ends of the spring are fixedly connected with the baffle plate and one side wall in the cavity respectively, and a plurality of seepage grooves are distributed in a circumferential equidistant array mode, so that engine oil can infiltrate into the movable groove through the seepage grooves.

Compared with the prior art, the utility model has the following beneficial effects:

1. the pump shaft is enabled not to be in direct contact with the pump body by the aid of the protection ring, the balls, the spherical rollers, the supporting rods, the baffle plates and the springs, meanwhile, the protection ring is enabled to rotate under the action of the balls, abrasion is enabled to be more uniform, vibration is avoided, service life is affected, meanwhile, the springs can buffer and offset stress and force generated by vibration, and service life is prolonged;

2. according to the utility model, through the use of the mounting plate, the rotating rod and the rolling ball, the pump shaft can be supported, and meanwhile, the pump shaft is assisted to rotate, so that the friction loss between the pump shaft and the pump body is reduced, and the service life of the pump is prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2B according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a guard ring according to the present utility model;

in the figure: 1. a pump body; 2. a pump cover; 3. a pump shaft; 4. an inner rotor; 5. an outer rotor; 6. an oil inlet; 7. an oil outlet; 8. a chamber; 9. a guard ring; 10. a rail groove; 11. a ball; 12. a moving groove; 13. spherical roller; 14. a support rod; 15. a baffle; 16. a spring; 17. a liquid seepage tank; 18. a mounting plate; 19. a rotating rod; 20. a rolling ball.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The oil pump capable of reducing abrasion as shown in fig. 1-4 comprises a pump body 1, a pump cover 2 arranged at one end of the pump body 1, a pump shaft 3 arranged at the middle position inside the pump cover 2, one end of the pump shaft 3 extends into the pump body 1, an inner rotor 4 is arranged at the outer side of the pump shaft 3 in the pump body 1, an outer rotor 5 is arranged inside the pump body 1 outside the inner rotor 4, the outer wall of the outer rotor 5 is attached to the inner side wall of the pump body 1, an oil inlet 6 and an oil outlet 7 are respectively arranged at two sides in the pump cover 2, a cavity 8 is arranged in the pump body 1 and far away from one side wall of the pump cover 2, a protection mechanism connected with the pump shaft 3 is arranged in the cavity 8, an auxiliary mechanism is arranged at one side, close to the pump cover 2, of the protection mechanism comprises a protection ring 9 arranged at the outer side of the pump shaft 3 in the cavity 8, a rail groove 10 is symmetrically arranged between the inner side part of the pump shaft 3 and the outer side wall of the pump shaft 3, a plurality of balls 11 are arranged in the rail groove 10, the auxiliary mechanism comprises a mounting plate 18, the mounting plate 18 is symmetrically arranged in the protruding part groove of the cavity 8, and the outer side wall of the mounting plate 18 is fixedly connected with the inner side wall of the cavity 8.

In this example, protection machanism still includes the branch 14 that protection ring 9 outside symmetry was equipped with in the cavity 8, the one end and the cavity 8 inside wall of branch 14 are connected, protection ring 9 outside branch 14 outside cover is equipped with baffle 15, the cover is equipped with spring 16 in the cavity 8 outside cover of branch 14 between baffle 15 and the cavity 8 inside wall, the removal groove 12 has been seted up to protection ring 9 outside wall, be equipped with spherical gyro wheel 13 in the removal groove 12, and spherical gyro wheel 13 is connected with branch 14 one end, spherical gyro wheel 13 passes through axle and branch 14 one end swing joint, through the protection machanism who is equipped with, make it can make pump shaft 3 and pump body 1 direct contact, make rolling friction between pump shaft 3 and the protection ring 9 simultaneously, simultaneously also can make the relative rotation of protection ring 9, make wear between it and the pump shaft 3 more even, reduce friction loss, simultaneously also can be through spring 16 to its atress buffering offset, avoid vibration to influence the oil pump tightness, influence its life.

In this example, assist mechanism still includes a plurality of bull sticks 19 of movable mounting between the pump shaft 3 outside mounting panel 18 in the cavity 8, and bull stick 19 outside cover is equipped with spin 20 between the mounting panel 18, through assist mechanism, makes it support pump shaft 3, and is spacing simultaneously, makes its operation more stable, reduces friction loss simultaneously.

In the example, a plurality of seepage grooves 17 are symmetrically arranged in the protection ring 9, the seepage grooves 17 are respectively communicated with the rail groove 10 and the moving groove 12, and engine oil can flow into the moving groove 12 and promote the balls 11 and the spherical rollers 13 to roll on the protection ring 9 better by using the seepage grooves 17, so that friction is reduced.

In this example, the mounting plate 18 is of annular construction and the rotating rod 19 is rotatably connected to the mounting plate 18 by means of bearings to support the ball 20.

In this example, two ends of the spring 16 are fixedly connected with the baffle 15 and a side wall in the chamber 8 respectively, and a plurality of oil seepage grooves 17 are distributed in a circumferential equidistant array manner, so that engine oil permeates into the movable groove 12 through the oil seepage grooves 17.

The working principle of the utility model is as follows: during the use, the rotation of pump shaft 3 can drive ball 11 and rotate, make and produce rolling friction between its pump shaft 3 and the ball 11, reduce and directly take place the friction between pump shaft 3 and the pump body 1, coefficient of friction is less, thereby reduce the wearing and tearing that cause, the roll of ball 11 can impel guard ring 9 to carry out relative movement in addition, avoid wearing and tearing evenly between guard ring 9 and the pump shaft 3, avoid it to produce the vibration, influence its life, in addition, when the effect that its engine oil produced and its emergence vibrate, make its atress transmit spherical gyro wheel 13 and then transmit on branch 14, simultaneously transmit baffle 15, and then carry out corresponding offset and buffering to the force that its produced through spring 16, in order to avoid the force that the vibration produced to cause the influence to the engine oil pump, thereby improve its life.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Can reduce worn and torn oil pump, pump lid (2) including pump body (1), pump body (1) one end is equipped with, pump shaft (3) that inboard intermediate position of pump lid (2) was equipped with, in the one end of pump shaft (3) extends to pump body (1), pump shaft (3) outside is equipped with inner rotor (4) in pump body (1), inner rotor (4) outside pump body (1) inside is equipped with outer rotor (5), outer rotor (5) outer wall and pump body (1) inside wall laminating, both sides are equipped with oil inlet (6) and oil-out (7) in pump lid (2) respectively, its characterized in that:

the utility model discloses a pump, including pump body (1), pump cover (2) and pump body (8) are kept away from, cavity (8) are equipped with in cavity (8) and are connected with protection machanism, protruding portion just is located protection machanism and is close to pump cover (2) one side and be equipped with auxiliary mechanism in cavity (8), protection machanism includes protection ring (9) that pump shaft (3) outside was equipped with in cavity (8), rail groove (10) have been seted up to symmetry between the medial part of pump shaft (3) and pump shaft (3) lateral wall, be equipped with a plurality of balls (11) in rail groove (10), auxiliary mechanism includes mounting panel (18), and mounting panel (18) symmetry sets up in cavity (8) protruding portion inslot, just mounting panel (18) lateral wall and cavity (8) inside wall fixed connection, protection machanism still includes branch (14) that protection ring (9) outside symmetry was equipped with in cavity (8), the one end and cavity (8) inside wall are connected, protection ring (9) outside branch (14) outside cover is equipped with baffle (15), cavity (8) lateral wall (16) are equipped with between baffle (16) lateral wall and the outside of cavity (8), be equipped with spherical gyro wheel (13) in removal groove (12), and spherical gyro wheel (13) are connected with branch (14) one end, spherical gyro wheel (13) are through axle and branch (14) one end swing joint, assist mechanism still includes a plurality of bull sticks (19) of movable mounting between pump shaft (3) outside mounting panel (18) in cavity (8), bull stick (19) outside cover is equipped with spin (20) between mounting panel (18).

2. The wear-reducible oil pump of claim 1, wherein: a plurality of seepage grooves (17) are symmetrically arranged in the protection ring (9), and the seepage grooves (17) are respectively communicated with the rail groove (10) and the moving groove (12).

3. The wear-reducible oil pump of claim 1, wherein: the mounting plate (18) is of an annular structure, and the rotating rod (19) is rotatably connected with the mounting plate (18) through a bearing.

4. The wear-reducible oil pump of claim 2, wherein: two ends of the spring (16) are fixedly connected with the baffle plate (15) and one side wall in the cavity (8) respectively, and a plurality of seepage grooves (17) are distributed in a circumferential equidistant array mode.