CN110608236A

CN110608236A - Floating bearing seat

Info

Publication number: CN110608236A
Application number: CN201910623410.4A
Authority: CN
Inventors: 黄友福
Original assignee: HEFEI AUTOMOBILE OIL PUMP Co Ltd
Current assignee: HEFEI AUTOMOBILE OIL PUMP Co Ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2019-12-24

Abstract

The invention discloses a floating bearing seat, comprising: the bearing seat comprises an 8-shaped bearing seat body, a copper plate and a bushing; the bottom of the copper plate forms a bearing seat body through casting, and the two shaft holes of the bearing seat body are fixedly connected with the bushings respectively. One side of the bearing seat body is provided with a groove, a copper plate is formed in the groove through casting, and the copper plate and the bearing seat body are integrally formed; two shaft holes on the bearing block body are stepped holes, and the shaft holes comprise: a large hole portion and a small hole portion; two connecting cylinders are arranged on one end face of the copper plate, the outer circles of the two connecting cylinders are respectively matched with the large holes in an embedded mode, the inner holes of the connecting cylinders of the copper plate are consistent with the diameter of the small holes in size, a lining cavity is formed, and the lining is fixed in the lining cavity. The floating bearing seat does not need to add precious metal materials, and avoids the precious metal intermediate smelting process, so that the process is simplified, the material cost is effectively reduced, and the bearing seat has higher support strength and end surface wear resistance.

Description

Floating bearing seat

Technical Field

The invention relates to the technical field of bearing seat structure design, in particular to a floating bearing seat of a gear type oil pump.

Background

The floating bearing seat is mainly used for gear support and end face sealing of a gear oil pump, and in order to achieve stable output of flow and pressure of the gear oil pump, the floating bearing needs to have certain support strength, lower friction coefficient and better end face wear resistance.

At present, the floating bearing seat structure of the known gear type oil pump is divided into an aluminum alloy structure and a side plate type structure, the floating bearing seat with the aluminum alloy structure consists of a special aluminum alloy body and a steel back composite bushing, and the floating bearing seat is also designed into a two-half structure for facilitating processing in the early stage; the side plate type structure comprises a powder metallurgy side plate and a bimetal side plate. The floating bearing seat body with a special aluminum alloy structure mainly comprises copper, tin, nickel, manganese, silicon and other alloy elements, and as the whole body of the floating bearing seat is high in cost due to the alloy materials, and the smelting and casting processes are complex, intermediate aluminum alloys, such as aluminum-copper intermediate alloy, aluminum-tin intermediate alloy, aluminum-nickel intermediate alloy, aluminum-magnesium intermediate alloy and aluminum-silicon intermediate alloy, need to be prepared first, and then the intermediate alloys are smelted into special aluminum alloy products, so that the whole cost of the products is high.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide a floating bearing seat, which does not require the addition of precious metal materials, and avoids the precious metal intermediate smelting process, thereby simplifying the process, effectively reducing the material cost, and having higher support strength and end surface wear resistance.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a floating bearing housing comprising: the bearing frame body of "8" style of calligraphy still includes: a copper plate and a bushing; the bottom of the copper plate forms the bearing seat body through casting, and the two shaft holes of the bearing seat body are fixedly connected with the bushings respectively; and one end of the bearing seat body, which is far away from the copper plate, is provided with an E-shaped or 3-shaped sealing groove.

In a preferred embodiment, a groove is formed in one side of the bearing seat body, the copper plate is formed in the groove through casting, and the copper plate and the bearing seat body are integrally formed.

In a preferred embodiment, the two shaft holes of the bearing seat body are stepped holes, and each shaft hole comprises: a large hole portion and a small hole portion; the copper an end face is provided with two connecting cylinders, two the connecting cylinder excircle respectively with the macropore cooperation, the connecting cylinder hole of copper with aperture diameter size is unanimous, forms the bush chamber, the bush is fixed in the bush chamber.

In a preferred embodiment, the bushing has an interference fit with a bushing cavity of the bushing.

In a preferred embodiment, the bearing seat body end surface is provided with an oil groove for communicating the outside of the bearing seat body and the lining cavity.

In a preferred embodiment, the upper half part and the lower half part of the groove on one side of the bearing seat body are both in a rectangular tooth groove structure, and the upper half part and the lower half part of the copper plate form a rectangular tooth structure through casting and are matched with the rectangular tooth groove on the groove; and the end face of the copper plate is flush with the end face of the bearing seat body.

In a preferred embodiment, the bearing housing body material grade is ZL111 or ZL 108.

In a preferred embodiment, the copper plate material is tin-phosphor bronze (6.5-0.1).

In a preferred embodiment, the liner is a steel backed composite liner.

The floating bearing seat has the following beneficial effects:

the floating bearing seat is made of common materials, the use of special aluminum alloy materials is reduced, and intermediate alloy smelting is not needed, so that the use cost of the materials is reduced, the process flow is reduced, and the floating bearing seat is energy-saving and environment-friendly.

By adopting the gear type oil pump composite shaft sleeve structure, the tin-zinc-lead bronze plate matched with the gear end face of the gear oil pump ensures the wear resistance of the working face.

The gear type oil pump composite shaft sleeve structure is reliable in overall structure and has high supporting strength and wear resistance.

Drawings

FIG. 1 is a schematic view of a floating bearing housing according to one embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a schematic structural view of a bearing housing body according to one embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic structural view of a copper plate according to an embodiment of the present disclosure;

fig. 7 is a cross-sectional view of fig. 6.

[ description of main reference symbols ]

1. A bearing housing body;

11. shaft hole 111, large hole 112, small hole;

12. a groove 121, a rectangular tooth groove;

13. oil groove, 14 seal groove;

2. the copper plate 21, the connecting cylinder 22 and the rectangular teeth;

3. a bushing.

Detailed Description

The floating bearing housing of the present invention will be described in further detail with reference to the accompanying drawings and embodiments of the invention.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, a floating bearing housing of the present invention comprises: the bearing frame body 1 of "8" style of calligraphy still includes: copper plate 2 and bushing 3; the bottom of the copper plate 2 forms a bearing seat body 1 through casting, and the two shaft holes 11 of the bearing seat body 1 are respectively and fixedly connected with the bushings 3; the end of the bearing seat body 1 far away from the copper plate 2 is provided with an E-shaped or 3-shaped sealing groove 14. The bearing seat body 1 has high supporting strength and provides stable support for the gear; the copper plate 2 fixedly connected with one side of the bearing seat body 1 is connected with the side surface of the gear, and has the functions of antifriction, wear resistance and sealing; the copper plate 2 is formed by casting, can be integrated with the bearing seat body 1, and has high bonding strength. The bush 3 is fixed in two shaft holes 11 of the bearing seat body 1 and is in direct contact with the gear shaft, so that the bearing seat has a good antifriction effect. The E-shaped or 3-shaped sealing groove 14 arranged at one end of the bearing seat body 1 far away from the copper plate 2 can prevent oil from leaking.

In order to enable the copper plate 2 to be tightly matched with the bearing seat body 1, a groove 12 is formed in one side of the bearing seat body 1, the copper plate 2 is formed in the groove 12 through casting, and the copper plate 2 and the bearing seat body 1 are integrally formed; therefore, the bonding strength of the copper plate 2 and the bearing seat body 1 can be improved, the floating bearing is simple in structure, and the manufacturing cost is reduced.

In order to improve the cohesion between copper 2 and the bearing frame body 1, two shaft holes 11 on the bearing frame body 1 are the step hole, and shaft hole 11 includes: a large hole portion 111 and a small hole portion 112; 2 a terminal surface of copper is provided with two connecting cylinders 21, two the outer circle of connecting cylinder 21 respectively with macropore 111 cooperates, the connecting cylinder 21 hole of copper 2 with aperture 112 diameter size is unanimous, forms the bush chamber, and bush 3 is fixed in the bush chamber. Therefore, the copper plate 2 and the bearing seat body 1 have high bonding strength, and the copper plate 2 cannot be separated from the bearing seat body 1 when being subjected to the friction force of the gear.

In order to improve the bonding strength of the bush 3 and the bush cavity, the bush 3 is in interference fit with the bush cavity.

The end face of the bearing seat body 1 is provided with an oil groove 13 for conducting the outside of the bearing seat body 1 and the lining cavity, lubricating oil can enter the middle positions of the lining 3 and the gear shaft through the oil groove 13, a lubricating effect is achieved, and friction between the gear shaft and the lining 3 is reduced.

The upper half part and the lower half part of the groove 12 on one side of the bearing seat body 1 are both in a rectangular tooth groove 121 structure, and the upper half part and the lower half part of the copper plate 2 form a rectangular tooth 22 structure through casting and are matched with the rectangular tooth groove 121 on the groove; the contact area between the copper plate 2 and the bearing seat body 1 can be increased, and the binding force between the copper plate 2 and the bearing seat body 1 is improved; and the end face of the copper plate 2 is flush with the end face of the bearing seat body 1, so that the sealing performance between the floating bearing seat and the gear can be ensured, and the gear pump is prevented from leaking oil.

In order to reduce the cost of the floating bearing seat, the material brand of the bearing seat body 1 is ZL111 or ZL108, and ZL111 or ZL108 are common materials, so that the use of special aluminum alloy materials is reduced, and intermediate alloy smelting is not needed, so that the material use cost is reduced, the process flow is reduced, and meanwhile, the floating bearing seat is energy-saving and environment-friendly.

Because the copper plate 2 is in direct frictional contact with the gear, in order to improve the antifriction property and the wear resistance of the working surface, the material grade of the copper plate 2 is tin-phosphor bronze (6.5-0.1).

Because sliding friction is adopted between the bushing and the gear shaft, the bushing 3 is a steel back composite bushing, the steel back can improve the strength of the bushing, and the high polymer material in the steel back composite bushing can reduce the friction coefficient between the bushing and the gear shaft, reduce the friction force and improve the efficiency of the gear pump.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A floating bearing housing comprising: bearing frame body (1) of "8" style of calligraphy, its characterized in that still includes: a copper plate (2) and a bushing (3); the bottom of the copper plate (2) forms the bearing seat body (1) through casting, and the two shaft holes (11) of the bearing seat body (1) are respectively and fixedly connected with the bushings (3); one end of the bearing seat body (1) far away from the copper plate (2) is provided with an E-shaped or 3-shaped sealing groove (14).

2. A floating bearing seat according to claim 1, characterized in that one side of the bearing seat body (1) is provided with a groove (12), the copper plate (2) is formed in the groove (12) by casting, and the copper plate (2) and the bearing seat body (1) are integrally formed;

two shaft holes (11) on the bearing seat body (1) are stepped holes, and the shaft holes (11) comprise: a large hole part (111) and a small hole part (112); copper (2) a terminal surface is provided with two connecting cylinder (21), two connecting cylinder (21) excircle respectively with macropore (111) cooperation, connecting cylinder (21) hole of copper (2) with aperture (112) diameter size is unanimous, forms the bush chamber, bush (3) are fixed in the bush chamber.

3. A floating bearing housing according to claim 2 characterised in that the bush (3) has an interference fit with the bush cavity of the bush (3).

4. A floating bearing seat according to claim 1 characterised in that the end face of the bearing seat body (1) is provided with an oil groove (13) communicating the exterior of the bearing seat body (1) with the bush cavity.

5. The floating bearing seat according to claim 1, characterized in that the upper half part and the lower half part of the groove (12) on one side of the bearing seat body (1) are both in a rectangular gullet (121) structure, and the upper half part and the lower half part of the copper plate (2) are cast to form a rectangular gullet (22) structure which is matched with the rectangular gullet (121) on the groove; and the end face of the copper plate (2) is flush with the end face of the bearing seat body (1).

6. The floating bearing seat according to claim 1, characterized in that the bearing seat body (1) is of the ZL111 or ZL108 material grade.

7. A floating bearing block according to claim 1 characterised in that the copper plate (2) material grade is tin phosphor bronze (6.5-0.1).

8. A floating bearing housing according to claim 1 characterised in that the bush (3) is a steel backed composite bush.