CN218177736U

CN218177736U - Thrust tapered roller bearing

Info

Publication number: CN218177736U
Application number: CN202220937420.2U
Authority: CN
Inventors: 张海鹏; 刘泽华; 刘国庆
Original assignee: NINGXIA CHENGDE AUTO BEARING Ltd
Current assignee: NINGXIA CHENGDE AUTO BEARING Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-12-30
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a tapered roller thrust bearing, including shell and upper cover, shell and upper cover rotatable coupling, the bottom fixed mounting of upper cover has the holder, the inside of shell is provided with the packing ring, install the rolling element between holder and the packing ring, the equal fixed mounting in inboard of shell and upper cover has the spacing ring, be provided with the clearance between rolling element and the spacing ring, the rolling element is the toper form, the one end that the rolling element is close to the shell is hemispherical, the inside fixed mounting of shell has first change, first change is the equidistance and distributes, the rolling element includes roller, second change and cylinder, the inside fixed connection of cylinder and first change. The tapered roller thrust bearing has the advantages of improving the rotation efficiency and reducing the abrasion, and solves the problem that the tapered shaft-shaped rolling element is stressed outwards when receiving the thrust and is abraded due to the fact that the friction of the tapered shaft-shaped rolling element and a shell of the bearing is increased.

Description

Thrust tapered roller bearing

Technical Field

The utility model relates to an automobile bearing technical field specifically is a tapered roller thrust bearing.

Background

The development of the automobile has a long process, and the automobile is continuously improved for more than 100 years and widely used for transportation tools in various fields of social, economic and life, a bearing is an important part in modern mechanical equipment, the bearing mainly has the functions of supporting a mechanical rotating body, reducing the friction coefficient in the movement process and ensuring the rotation precision of the mechanical rotating body, and a thrust ball bearing adopts a design capable of bearing thrust load when running at high speed and consists of a washer-shaped ferrule with a raceway groove for rolling balls.

The automobile bearing is designed into a conical shaft-shaped rolling body instead of an original spherical rolling body in order to improve bearing thrust and load capacity, the original spherical rolling body is in contact with one point, the conical shaft-shaped rolling body is in contact with one line, thrust and load capacity can be effectively improved, however, when the conical shaft-shaped rolling body receives thrust, a roller is outwards extruded and stressed, friction is increased with a shell of the bearing, and abrasion is caused, so that the thrust tapered roller bearing is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thrust tapered roller bearing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a thrust tapered roller bearing, includes shell and upper cover, shell and upper cover rotatable coupling, the bottom fixed mounting of upper cover has the holder, the inside of shell is provided with the packing ring, install the rolling element between holder and the packing ring.

As the utility model discloses further scheme again: the inner sides of the shell and the upper cover are fixedly provided with limiting rings, and gaps are arranged between the rolling bodies and the limiting rings.

As a further aspect of the present invention: the rolling body is in a conical shape, and one end of the rolling body, which is close to the shell, is hemispherical.

As a further aspect of the present invention: the inside fixed mounting of shell has first swivel, first swivel is the equidistance and distributes.

As a further aspect of the present invention: the rolling element includes roller, second change and cylinder, the inside fixed connection of cylinder and first change, the outside of cylinder passes through second change and roller rotatable coupling.

As a further aspect of the present invention: the first rotating ring and the second rotating ring are both sliding bearings.

As the utility model discloses further scheme again: the rolling body comprises a forward cone and an inverted cone, the large diameter of the forward cone and the large diameter of the inverted cone are fixed to each other, and the taper of the forward cone is smaller than that of the inverted cone.

As a further aspect of the present invention: the small diameter end of the right cone is close to the inner side of the shell, and the small diameter end of the inverted cone is close to the outer side of the shell.

As the utility model discloses further scheme again: the top inclined plane of the gasket is matched with the taper of the rolling body, the bottom of the retainer is provided with a limiting groove, and the shape of the limiting groove is matched with that of the rolling body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the shell and the upper cover are subjected to opposite forces, the semi-sphere of the rolling body is contacted with the inside of the shell, and the friction surface is a point, so that the contact area is reduced, and the abrasion is reduced.

2. This thrust tapered roller bearing, when shell and upper cover received relative power, the cylinder can play thrust to the roller through the second swivel, prevents that rolling element and shell direct contact from producing the friction, improves the rotation efficiency, and reducing wear.

3. This thrust tapered roller bearing, when shell and upper cover received relative power, the back taper body contacted with spacing groove and packing ring each other respectively under the effort, made the rolling element keep at the intermediate position, prevented that rolling element and shell direct contact from producing the friction, improved rotation efficiency, reduce wear.

Drawings

FIG. 1 is a schematic structural view of a tapered roller thrust bearing;

FIG. 2 is an exploded view of a first embodiment of a tapered roller thrust bearing;

FIG. 3 is an exploded view of a second embodiment of a tapered roller thrust bearing;

FIG. 4 is a schematic diagram of a rolling element structure of a second embodiment of a tapered roller thrust bearing;

fig. 5 is a schematic structural diagram of a third embodiment of a tapered roller thrust bearing.

In the figure: 1. a housing; 2. an upper cover; 3. a limiting ring; 4. a rolling body; 401. a roller; 402. a second swivel; 403. a cylinder; 5. a holder; 6. a gasket; 7. a first swivel.

Detailed Description

Example one

Referring to fig. 1 to 2, in an embodiment of the present invention, a tapered roller thrust bearing includes a housing 1 and an upper cover 2, the housing 1 is rotatably connected to the upper cover 2, a retainer 5 is fixedly mounted at the bottom of the upper cover 2, a washer 6 is disposed inside the housing 1, and a rolling element 4 is mounted between the retainer 5 and the washer 6.

In a preferred embodiment, a limiting ring 3 is fixedly mounted on the inner sides of the housing 1 and the upper cover 2, a gap is provided between the rolling body 4 and the limiting ring 3, the limiting ring 3 plays a limiting role when not stressed, the rolling body 4 is prevented from falling out, and meanwhile, the storage of lubricating oil is facilitated.

In a preferred embodiment, the rolling element 4 has a cone shape, one end of the rolling element 4 close to the housing 1 has a hemispherical shape, the hemispherical shape of the rolling element 4 contacts with the inside of the housing 1 to reduce the contact area, and the friction surface is a point.

In a preferred embodiment, a first rotating ring 7 is fixedly installed inside the housing 1, and the first rotating ring 7 is distributed equidistantly.

In a preferred embodiment, the top slope of the washer 6 is adapted to the taper of the rolling elements 4, and the bottom of the retainer 5 is provided with a limiting groove, the shape of which is adapted to the shape of the rolling elements 4

The utility model discloses a theory of operation is: when shell 1 and upper cover 2 received relative power, under the tapered effect of rolling element 4, the outside extrusion of rolling element 4 made hemispherical of rolling element 4 and shell 1's internal contact, and the friction surface is a point, reduces area of contact, improves the rotation efficiency, and inside packing lubricating oil distribution also can be more even, rolling element 4's wearing and tearing when reducing the atress.

Example two

Referring to fig. 1, 3 and 4, in an embodiment of the present invention, a tapered roller thrust bearing includes a housing 1 and an upper cover 2, the housing 1 is rotatably connected to the upper cover 2, a retainer 5 is fixedly mounted at the bottom of the upper cover 2, a washer 6 is disposed inside the housing 1, and a rolling element 4 is mounted between the retainer 5 and the washer 6.

In a preferred embodiment, the inner sides of the housing 1 and the upper cover 2 are both fixedly provided with a limiting ring 3, a gap is provided between the rolling body 4 and the limiting ring 3, the limiting ring 3 plays a limiting role when not stressed, the rolling body 4 is prevented from falling out, and meanwhile, the storage of lubricating oil is facilitated.

In a preferred embodiment, the rolling elements 4 comprise rollers 401, a second swivel 402 and a cylinder 403, the cylinder 403 is fixedly connected to the inside of the first swivel 7, and the outside of the cylinder 403 is rotatably connected to the rollers 401 via the second swivel 402.

In a preferred embodiment, the first and second rotating

rings

7 and 402 are both sliding bearings, which are bearings operating under sliding friction, and have the advantages of simple structure and small size.

In a preferred embodiment, the top slope of the washer 6 is adapted to the taper of the rolling elements 4, and the bottom of the retainer 5 is provided with a limiting groove, the shape of which is adapted to the shape of the rolling elements 4.

The utility model discloses a theory of operation is: the rolling body 4 rotates outside the cylinder 403 through the second rotating ring 402, the cylinder 403 limits the roller 401, when the housing 1 and the upper cover 2 are subjected to opposite force, the cylinder 403 can push the roller 401 through the second rotating ring 402, the roller 401 is prevented from being pushed outwards, the rolling body 4 is prevented from being in direct contact with the housing 1 to generate friction, the rotating efficiency is improved, and the abrasion is reduced.

EXAMPLE III

Referring to fig. 1 and 5, in an embodiment of the present invention, a tapered roller thrust bearing includes a housing 1 and an upper cover 2, the housing 1 is rotatably connected to the upper cover 2, a retainer 5 is fixedly mounted at the bottom of the upper cover 2, a washer 6 is disposed inside the housing 1, and a rolling element 4 is mounted between the retainer 5 and the washer 6.

In a preferred embodiment, a limiting ring 3 is fixedly mounted on the inner sides of the housing 1 and the upper cover 2, and a gap is provided between the rolling body 4 and the limiting ring 3.

In a preferred embodiment, the rolling element 4 comprises a right cone and a reverse cone, the large diameter of the right cone and the large diameter of the reverse cone are fixed to each other, and the taper of the right cone is smaller than that of the reverse cone.

In a preferred embodiment, the small diameter end of the right cone is close to the inner side of the casing 1, and the small diameter end of the inverted cone is close to the outer side of the casing 1.

The utility model discloses a theory of operation is: when the shell 1 and the upper cover 2 are subjected to opposite forces, the forward cone of the rolling body 4 is pushed outwards under the action force until the reverse cone is respectively contacted with the limiting groove and the gasket 6 under the action force, so that the rolling body 4 is kept at the middle position, the reverse cone rolls between the gasket 6 and the retainer 5, the rolling body 4 is not contacted with the bracket of the shell 1, the rolling body 4 is prevented from being directly contacted with the shell 1 to generate friction, the rotating efficiency is improved, and the abrasion is reduced.

It should be noted that the above embodiments belong to the same utility model concept, and the description of each embodiment has its emphasis, and the description of each embodiment is not described in detail, and reference may be made to the description of other embodiments.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a thrust tapered roller bearing, includes shell (1) and upper cover (2), shell (1) and upper cover (2) rotatable coupling, its characterized in that, the bottom fixed mounting of upper cover (2) has holder (5), the inside of shell (1) is provided with packing ring (6), install rolling element (4) between holder (5) and packing ring (6).

2. The tapered roller thrust bearing as claimed in claim 1, wherein a stop ring (3) is fixedly mounted on the inner sides of the housing (1) and the upper cover (2), and a gap is provided between the rolling elements (4) and the stop ring (3).

3. A tapered roller thrust bearing according to claim 1, characterized in that the rolling elements (4) are tapered, and the end of the rolling elements (4) adjacent to the housing (1) is hemispherical.

4. A tapered roller thrust bearing according to claim 1, characterized in that a first rotating ring (7) is fixedly mounted inside the housing (1), and the first rotating ring (7) is distributed equidistantly.

5. A thrust tapered roller bearing according to claim 4, characterized in that the rolling elements (4) comprise rollers (401), a second swivel (402) and cylinders (403), the cylinders (403) being fixedly connected to the inside of the first swivel (7), the outside of the cylinders (403) being rotatably connected to the rollers (401) via the second swivel (402).

6. A thrust tapered roller bearing according to claim 5, characterized in that the first swivel ring (7) and the second swivel ring (402) are both slide bearings.

7. A tapered roller thrust bearing according to claim 1, wherein the rolling elements (4) comprise a forward cone and an inverted cone, the large diameter of the forward cone and the large diameter of the inverted cone are fixed to each other, and the taper of the forward cone is smaller than that of the inverted cone.

8. A tapered roller thrust bearing according to claim 7, wherein the small diameter end of the forward cone is close to the inside of the casing (1) and the small diameter end of the reverse cone is close to the outside of the casing (1).

9. A tapered roller thrust bearing according to any of claims 1 to 8, characterized in that the top slope of the washer (6) is adapted to the taper of the rolling elements (4), and the bottom of the cage (5) is provided with a limiting groove, the shape of which is adapted to the shape of the rolling elements (4).