CN219867364U

CN219867364U - Oil pump

Info

Publication number: CN219867364U
Application number: CN202321270981.2U
Authority: CN
Inventors: 刘丹丹; 史艳军
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-10-20
Anticipated expiration: 2033-05-23

Abstract

The utility model discloses an oil pump, and belongs to the field of pumps. The technical scheme adopted by the utility model is that the oil pump comprises a plurality of identical unit pump components, wherein each unit pump component comprises a shell, an inlet end and an outlet end are oppositely arranged on the side wall of the shell, a channel structure for communicating the inlet end with the outlet end is arranged in the shell, a flow guide component is arranged in the channel structure, the channel structures in adjacent shells are correspondingly communicated, and the components in the adjacent shells are connected and driven through a transmission connecting piece; the pump seat and the cover plate are used for sealing the end face of the shell at the outermost side; the utility model can meet different flow demands by assembling a plurality of identical single pump components, so that the flow of the oil pump device can be flexibly changed, and meanwhile, the manufacturing and using cost of the die can be reduced.

Description

Oil pump

Technical Field

The utility model belongs to the technical field of pumps, and particularly relates to an oil pump.

Background

The oil pump is used for forcedly pressing and conveying engine oil to the moving surfaces of all parts of the engine after the engine oil is 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 also classified into an internal gear type oil pump and an external gear type oil pump, the latter is generally called a gear type oil pump, and the oil pump of a large-bore engine is generally large in flow rate, and when the number of cylinders is increased or the engine is increased in supply rate, the flow rate of the oil pump needs to be increased.

The existing oil pump is mostly of an integral design, the flow of the existing oil pump is fixed or can be adjusted only in a small range, and when the required flow range is changed greatly, the existing oil pump can only be replaced with the oil pump with large flow, so that the existing oil pump has certain limitation in the use process. On the other hand, the replaced small-flow oil pump is mostly idle or scrapped, the cost for replacing the oil pump is high, and meanwhile, the original die for manufacturing the small-flow oil pump cannot meet the use requirement, and a new die is required to be opened, so that the production cost of the new pump is high.

Disclosure of Invention

The utility model provides an oil pump for solving at least one of the technical problems.

The technical scheme adopted by the utility model is as follows:

the oil pump comprises a plurality of identical unit pump components, wherein each unit pump component comprises a shell, an inlet end and an outlet end are oppositely arranged on the side wall of the shell, a channel structure for communicating the inlet end with the outlet end is arranged in the shell, a flow guide component is arranged in the channel structure, the channel structures in adjacent shells are correspondingly communicated, and the flow guide components in the adjacent shells are connected and driven through a transmission connecting piece; the pump also comprises a pump seat and a cover plate which are used for sealing the end face of the shell at the outermost side.

Preferably, adjacent housings are fixedly connected by an intermediate connector for sealing the outer edges of adjacent housings while communicating channel structures within adjacent housings.

Preferably, the flow guiding assembly comprises a driving gear and a driven gear, the driving gear is meshed with the driven gear, and a connecting shaft extending out of the pump seat is arranged on the driving gear located at the outermost side.

Preferably, the transmission connecting piece adopts a spline shaft or a flat key shaft structure so as to connect transmission between adjacent driving gears.

Preferably, after the plurality of groups of the shells are connected, any one inlet end and any one outlet end are reserved, and the rest of the inlet ends and the rest of the outlet ends are sealed through sealing plates.

Preferably, connecting flanges are arranged at two ends of the shell, and the connecting flanges are used for connecting the pump seat and/or the cover plate and/or the middle connecting piece.

Preferably, a first sealing ring is arranged between the connecting flange and the intermediate connecting piece.

Preferably, a second sealing ring is arranged between the connecting flange and the pump seat.

Preferably, a third sealing ring is arranged between the connecting flange and the cover plate.

Preferably, the surfaces of the shell, the pump seat, the cover plate and the intermediate connecting piece are all provided with an anti-rust coating.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. according to the utility model, when the required medium flow is smaller, a single pump assembly can be used, and the pump seat and the cover plate are respectively arranged at two ends of the shell to seal the shell; when the required medium flow is larger, two single pump assemblies are used for splicing to meet the flow demand, when the required medium flow is larger, three or more single pump assemblies can be adopted for splicing and assembling, the components in the multiple groups of shells are all connected into an integral structure through transmission connecting pieces through the oil pump devices formed by splicing, the output rotating shafts of the external driving devices are connected with any one of the guide assemblies to realize synchronous movement of all the guide assemblies, and channel structures on two sides of the guide assemblies in all the shells are correspondingly communicated, so that the cavity for accommodating the medium in the oil pump devices formed by splicing is enlarged to increase the medium flow.

2. On the other hand, the shell, the internal structure, the flow guide assembly, the cover plate and the pump seat included in the single pump assembly are produced by adopting standardized dies, and then are assembled and spliced according to the required medium flow requirement so as to meet the use requirement, and a set of dies are used for producing and processing a plurality of sets of shells, the flow guide assembly, the cover plate and the pump seat and then are assembled, so that the cost for manufacturing and using the dies is reduced.

3. As a preferred embodiment of the utility model, the middle connecting piece can play a role in strengthening the integral structural strength of the oil pump device formed by splicing, and can provide a fulcrum for the flow guide assembly in the shell so that the flow guide assembly can stably run.

4. As a preferred embodiment of the utility model, connecting flanges are arranged at two ends of the shell, and the connecting flanges are used for connecting the pump base and/or the cover plate and/or the middle connecting piece so as to improve the stability of the spliced multiple groups of shells.

5. As a preferred embodiment of the utility model, a first sealing ring is arranged between the connecting flange and the middle connecting piece, a second sealing ring is arranged between the connecting flange and the pump seat, a third sealing ring is arranged between the connecting flange and the cover plate, the sealing performance of the connecting joint between the middle connecting piece and the shell can be further improved by arranging the first sealing ring, the sealing performance of the connecting joint between the pump seat and the shell can be further improved by arranging the second sealing ring, and the sealing performance of the connecting joint between the cover plate and the shell can be further improved by arranging the third sealing ring.

Drawings

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

FIG. 2 is one of the cross-sectional views of embodiments of the present utility model;

FIG. 3 is a second cross-sectional view of an embodiment of the present utility model;

FIG. 4 is a second schematic structural view of an embodiment of the present utility model;

FIG. 5 is a schematic view of a housing, a channel structure, and a flow guiding assembly according to the present utility model;

FIG. 6 is a schematic diagram of a second embodiment of the housing, channel structure, and flow guiding assembly of the present utility model;

fig. 7 is a schematic structural view of an intermediate connector according to an embodiment of the present utility model.

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

In the drawings:

1. a housing; 101. an inlet end; 102. an outlet end; 103. a channel structure; 104. a connecting flange; 2. a pump base; 3. a cover plate; 4. an intermediate connection; 5. a drive gear; 501. a driven gear; 502. a connecting shaft; 6. a first seal ring; 7. a second seal ring; 8. and a third sealing ring.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 7, an oil pump comprises a plurality of identical unit pump components, wherein each unit pump component comprises a shell 1, an inlet end 101 and an outlet end 102 are oppositely arranged on the side wall of the shell 1, a channel structure 103 for communicating the inlet end 101 with the outlet end 102 is arranged in the shell 1, a flow guide component is arranged in the channel structure 103, the channel structures 103 in adjacent shells 1 are correspondingly communicated, and the flow guide components in adjacent shells 1 are connected and driven through a transmission connecting piece; also included are a pump seat 2 and a cover plate 3 for sealing the end face of the outermost housing 1.

It will be appreciated by those skilled in the art that when the required media flow is small, a single pump assembly may be used, and the pump base 2 and the cover plate 3 are respectively installed at two ends of the housing 1 to seal the housing 1, that is, the arrangement sequence of the components is as follows: pump seat 2, shell 1, cover plate 3; when the required medium flow is great, use two monomer pump assembly concatenation to satisfy the flow demand, when assembling two monomer pump assembly, at first with one of them casing 1 terminal and the front end fixed connection of another casing 1 and guarantee the leakproofness of connecting seam, channel structure 103 intercommunication in two casings 1, the water conservancy diversion subassembly in two casings 1 passes through the transmission connecting piece and connects the realization transmission, connect pump seat 2 and apron 3 respectively and realize the sealing to two casings 1 in two casing 1 outer ends again, fix the frock through pump seat 2 to the oil pump device that the equipment was become, each subassembly arranges the order promptly and is: pump seat 2, casing 1, cover plate 3; when the required medium flow is larger, three or more than three single pump components can be adopted for splicing and assembling, namely, the arrangement modes of the components are as follows: pump seat 2, housing 1, cover plate 3; the oil pump device formed by splicing is characterized in that the diversion components in the multiple groups of shells 1 are connected through the transmission connecting piece to form an integral structure, the output rotating shaft of the external driving device is connected with any diversion component to realize synchronous movement of all diversion components, and channel structures 103 on two sides of the diversion components in all shells 1 are correspondingly communicated, so that a cavity for accommodating media in the oil pump device formed by splicing is enlarged to increase the flow of the media. On the other hand, casing 1 and inner structure, water conservancy diversion subassembly, apron 3 and pump seat 2 that include among the monoblock pump assembly adopt standardized mould production, assemble the concatenation according to required medium flow demand again to satisfy the user demand, use one set of mould to produce out many sets of casings 1, water conservancy diversion subassembly, apron 3 and pump seat 2 assemble again can, reduce the cost of mould preparation and use.

As a preferred embodiment of the present utility model, referring to fig. 1, 2, 4, and 7, adjacent housings 1 are fixedly connected by an intermediate connection member 4, and the intermediate connection member 4 is used to seal the outer edges of the adjacent housings 1 and simultaneously communicate the channel structures 103 in the adjacent housings 1.

The setting of intermediate junction spare 4 can play the effect of strengthening the overall structure intensity of the oil pump device that the concatenation formed, can provide the fulcrum for the water conservancy diversion subassembly in the casing 1 simultaneously, makes water conservancy diversion subassembly can all steady operation, and in addition, the leakproofness between the casing 1 can be increased in the setting of intermediate junction spare 4, avoids the medium of circulation to leak in the casing 1.

As a specific embodiment of the flow guiding assembly in the present utility model, focusing on fig. 1 to 3, the flow guiding assembly includes a driving gear 5 and a driven gear 501, the driving gear 5 is meshed with the driven gear 501, and a connection shaft 502 extending out of the pump seat 2 is provided on the driving gear 5 located at the outermost side.

An output shaft of an external driving device is fixed with the connecting shaft 502, the driving device drives the connecting shaft 502 to rotate through the output shaft, the driving gear 5 rotates along with the connecting shaft 502 and drives the driven gear 501 to rotate, media in the channel structure 103 are guided, the media are discharged from the outlet end 102 after being pressurized, and the transmission connecting piece adopts a spline shaft or flat key shaft structure so as to enable adjacent driving gears 5 to be connected and transmitted.

It should be noted that any one of the inlet ends 101 and the outlet ends 102 is reserved after the plurality of sets of housings 1 are connected, and the remaining inlet ends 101 and outlet ends 102 are sealed by sealing plates.

As another preferred embodiment of the present utility model, referring to fig. 4 to 6, connecting flanges 104 are provided at both ends of the housing 1, and the connecting flanges 104 are used to connect the pump base 2 and/or the cover plate 3 and/or the intermediate connection member 4, so as to improve the stability of the multi-group housing 1 after being spliced.

Further, a first sealing ring 6 is arranged between the connecting flange 104 and the middle connecting piece 4, a second sealing ring 7 is arranged between the connecting flange 104 and the pump seat 2, and a third sealing ring 8 is arranged between the connecting flange 104 and the cover plate 3.

The arrangement of the first sealing ring 6 can further increase the tightness of the connecting seam between the middle connecting piece 4 and the shell 1, the arrangement of the second sealing ring 7 can further increase the tightness of the connecting seam between the pump seat 2 and the shell 1, and the arrangement of the third sealing ring 8 can further increase the tightness of the connecting seam between the cover plate 3 and the shell 1.

The surfaces of the shell 1, the pump seat 2, the cover plate 3 and the middle connecting piece 4 are all provided with an anti-rust coating, so that the shell 1, the pump seat 2, the cover plate 3 and the middle connecting piece 4 are prevented from rusting, and the service life of each component is prolonged.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims

1. The engine oil pump is characterized by comprising a plurality of identical unit pump components, wherein each unit pump component comprises a shell (1), an inlet end (101) and an outlet end (102) are correspondingly formed in the side wall of the shell (1), a channel structure (103) for communicating the inlet end (101) with the outlet end (102) is arranged in the shell (1), a flow guide component is arranged in the channel structure (103), the adjacent channel structures (103) in the shell (1) are correspondingly communicated, and the adjacent flow guide components in the shell (1) are connected and driven through a transmission connecting piece;

the pump also comprises a pump seat (2) and a cover plate (3) which are used for sealing the end face of the shell (1) at the outermost side.

2. An oil pump according to claim 1, characterized in that adjacent housings (1) are fixedly connected by an intermediate connecting piece (4), the intermediate connecting piece (4) being used for sealing the outer edges of the adjacent housings (1) and simultaneously communicating channel structures (103) in the adjacent housings (1).

3. The oil pump according to claim 1, characterized in that the flow guiding assembly comprises a driving gear (5) and a driven gear (501), the driving gear (5) is meshed with the driven gear (501), and a connecting shaft (502) extending out of the pump seat (2) is arranged on the driving gear (5) located at the outermost side.

4. A pump according to claim 3, wherein the drive connection is of a spline shaft or flat-spline shaft configuration to connect drive between adjacent drive gears (5).

5. An oil pump according to claim 1, wherein any one of the inlet port (101) and the outlet port (102) is reserved after a plurality of sets of the housings (1) are connected, and the rest of the inlet port (101) and the outlet port (102) are sealed by sealing plates.

6. The oil pump according to claim 2, characterized in that connecting flanges (104) are arranged at two ends of the housing (1), and the connecting flanges (104) are used for connecting a pump seat (2) and/or a cover plate (3) and/or an intermediate connecting piece (4).

7. The oil pump according to claim 6, characterized in that a first sealing ring (6) is arranged between the connecting flange (104) and the intermediate connecting piece (4).

8. The oil pump according to claim 6, characterized in that a second sealing ring (7) is arranged between the connecting flange (104) and the pump seat (2).

9. The oil pump according to claim 6, characterized in that a third sealing ring (8) is arranged between the connecting flange (104) and the cover plate (3).

10. The oil pump according to any one of claims 2-9, characterized in that the surfaces of the housing (1), the pump seat (2), the cover plate (3) and the intermediate connection piece (4) are provided with an anti-rust coating.