CN111022506A

CN111022506A - Assembled bearing

Info

Publication number: CN111022506A
Application number: CN201911230170.8A
Authority: CN
Inventors: 尤卫建
Original assignee: Aidesi Automobile Motor Wuxi Co ltd
Current assignee: Aidesi Automobile Motor Wuxi Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-04-17

Abstract

The invention discloses an assembled bearing, which comprises an inner ring, an outer ring, a retainer and rolling elements, wherein the inner ring comprises a first inner ring, a second inner ring and an inner ring insert, the first inner ring and the second inner ring are semicircular, the first inner ring and the second inner ring are mutually symmetrical, two ends of the first inner ring and the second inner ring are respectively provided with a first mounting groove, and the inner ring insert is clamped in the two first mounting grooves which are attached together; the outer ring comprises a first outer ring, a second outer ring and an outer ring insert, the first outer ring and the second outer ring are semicircular, the first outer ring and the second outer ring are symmetrical to each other, second mounting grooves are formed in two ends of the first outer ring and the second outer ring respectively, and the outer ring insert is clamped in the two second mounting grooves which are attached together; the bearing inner ring and the bearing outer ring are composed of two parts, so that the bearing inner ring and the bearing outer ring are convenient to disassemble and assemble when in use, manpower and material resources are saved, the overhaul time is saved, an axle can be effectively protected, and accident potential is reduced.

Description

Assembled bearing

Technical Field

The invention relates to the technical field of bearing equipment, in particular to an assembled bearing.

Background

The bearing is an important part in the contemporary mechanical equipment, its main function is to support the mechanical rotating body, reduce the coefficient of friction in its movement, and guarantee its gyration precision, in the prior art, the bearing is mostly an integral bearing, the inner race of the integral bearing, bearing body are a whole separately, will meet the very great difficulty in the course of disassembling and installing, such as every crankshaft, eccentric shaft and major axis with several supporting positions, the integral bearing can't be packed into at all, and must dismantle very difficult greatly while maintaining, have already wasted a large amount of manpower, material resources and increased the maintenance time, raised the maintenance cost at the same time;

the axle is one of important parts for ensuring the stable running of the railway vehicle, the axle bears frequently alternating loads in the running process of the railway vehicle, the loads borne by the axle are different under different running conditions, once the axle is damaged and developed in an enlarged manner, derailment accidents can be caused seriously; the bearing for the railway vehicle is a one-piece bearing and comprises a bearing inner ring, a bearing outer ring and rolling bodies positioned between the bearing inner ring and the bearing outer ring; such integral bearing, not only dismantle inconvenient, dismantle the in-process moreover, can damage the bearing, cause the accident hidden danger.

Disclosure of Invention

In order to solve the problems, the invention provides the assembled bearing, so that the bearing is convenient to disassemble, manpower and material resources are saved, and an axle can be effectively protected.

In order to achieve the purpose, the invention adopts the technical scheme that: an assembled bearing comprises an inner ring, an outer ring, a retainer and a rolling body, wherein the inner ring comprises a first inner ring, a second inner ring and an inner ring insert, the first inner ring and the second inner ring are semicircular, the first inner ring and the second inner ring are mutually symmetrical, two ends of the first inner ring and the second inner ring are respectively provided with a first mounting groove, and the inner ring insert is clamped in the two first mounting grooves which are attached together and used for connecting the first inner ring and the second inner ring; the outer ring comprises a first outer ring, a second outer ring and an outer ring insert, the first outer ring and the second outer ring are semicircular, the first outer ring and the second outer ring are symmetrical to each other, second mounting grooves are formed in two ends of the first outer ring and the second outer ring respectively, and the outer ring insert is clamped in the two second mounting grooves which are attached together and used for connecting the first outer ring and the second outer ring.

As a preferred technical scheme of the invention: the first mounting groove and the second mounting groove are in a dry shape; the inner surface and the outer surface of the inner ring insert are in the shape of circular arcs matched with the inner surface and the outer surface of the inner ring; the shape of the inner surface and the outer surface of the outer ring insert is arc-shaped which is matched with the inner surface and the outer surface of the outer ring.

As a preferred technical scheme of the invention: outer ring positioning holes are respectively formed in the end faces of two sides of the first outer ring and the second outer ring, and the two adjacent outer ring positioning holes are used for installing positioning pins.

As a preferred technical scheme of the invention: and a roller axial clearance adjusting pressure plate is also arranged between the inner ring and the outer ring.

The invention has the following beneficial effects:

1. the bearing inner race and the bearing outer race are composed of two parts, so that the bearing inner race and the bearing outer race are convenient to disassemble and assemble when in use, manpower and material resources are saved, maintenance time is saved, the axle can be effectively protected, and accident potential is reduced.

2. The inner ring insert and the outer ring insert are arranged in a circular arc shape on the inner surface and the outer surface, so that the bearing can run smoothly, and meanwhile, the first mounting groove and the second mounting groove are arranged in a dry shape, so that the service strength of the bearing can be ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the inner race of the present invention;

FIG. 3 is a left side view of the inner race of the present invention;

FIG. 4 is a schematic view of the overall structure of the first inner race of the present invention;

in fig. 1-4, 1, an inner ring, 2, an outer ring, 3, a rolling body, 4, a retainer, 5, a first inner ring, 6, a second inner ring, 7, an inner ring insert, 8, a first outer ring, 9, a second outer ring, 10, an outer ring insert, 11, a positioning hole, 12, a first mounting groove, 13, and an axial clearance adjusting pressure plate.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a fabricated bearing, including an inner ring 1, an outer ring 2, a cage 4, and rolling elements 3, where the cage 4 is disposed between the inner ring 1 and the outer ring 2, and the rolling elements 3 are disposed in the cage 4; the inner ring 1 comprises a first inner ring 4, a second inner ring 5 and an inner ring insert 7, the first inner ring 4 and the second inner ring 5 are semicircular, the first inner ring 4 and the second inner ring 5 are mutually symmetrical, two ends of the first inner ring 4 and the second inner ring 5 are respectively provided with a first mounting groove 12, after the first inner ring 4 and the second inner ring 5 are attached together, the inner ring insert 7 is clamped in the two first mounting grooves 12 which are attached together, and the first inner ring 4 and the second inner ring 5 are connected together to form the inner ring 1; the outer ring 2 comprises a first outer ring 8, a second outer ring 9 and an outer ring insert 10, the first outer ring 8 and the second outer ring 9 are semicircular, second mounting grooves are formed in two ends of the first outer ring 8 and the second outer ring 9 respectively, the first outer ring 8 and the second outer ring 9 are attached together, the outer ring insert 10 is clamped in the two second mounting grooves which are attached together, and the first outer ring 8 and the second outer ring 9 are connected into the outer ring 2.

The outer surfaces of the first outer ring 8 and the second outer ring 9 are respectively provided with a positioning hole 11, the positioning holes 11 are used for installing positioning pins, the positioning pins connect the outer ring 2 of the bearing with external equipment, and the use strength of the bearing is improved due to the arrangement of the positioning pins.

The first mounting groove 12 is composed of two axial grooves and one radial groove, penetrates through the first inner ring 4 and the second inner ring 5, and is similar to a dry shape; the inner surface and the outer surface of the inner ring insert 7 are in the shape of circular arcs matched with the inner surface and the outer surface of the inner ring 1, and the arrangement of the axial grooves can ensure that the inner ring insert 7 cannot be thrown out in the bearing rotating process; the second mounting groove is composed of two axial grooves and one radial groove, the second mounting groove penetrates through the first outer ring 8 and the second outer ring 9, the shape of the second mounting groove is similar to a 'dry' shape, the shape of the inner surface and the outer surface of the outer ring insert 10 is arc-shaped matched with the inner surface and the outer surface of the outer ring 2, the arc-shaped design of the inner ring insert 7 and the outer ring insert 10 ensures that the bearing runs smoothly, enough strength and insert precision of each point in the bearing can be kept, the first mounting groove 12 and the second mounting groove can be designed in various shapes according to actual conditions, for example, on the basis of the 'dry' shape, one axial groove is added or in places with low use requirements, one axial groove is reduced, and the bearing is similar to a 'T' shape.

A roller axial clearance adjusting pressure plate 13 is further arranged between the inner ring 1 and the outer ring 2, and the assembled bearing roller is guaranteed to work within a standard allowable range.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a fabricated bearing, includes inner circle, outer lane, holder, rolling element, its characterized in that: the inner ring comprises a first inner ring, a second inner ring and an inner ring insert, the first inner ring and the second inner ring are semicircular, the first inner ring and the second inner ring are mutually symmetrical, two ends of the first inner ring and the second inner ring are respectively provided with a first mounting groove, and the inner ring insert is clamped in the two first mounting grooves which are attached together and used for connecting the first inner ring and the second inner ring; the outer ring comprises a first outer ring, a second outer ring and an outer ring insert, the first outer ring and the second outer ring are semicircular, the first outer ring and the second outer ring are symmetrical to each other, second mounting grooves are formed in two ends of the first outer ring and the second outer ring respectively, and the outer ring insert is clamped in the two second mounting grooves which are attached together and used for connecting the first outer ring and the second outer ring.

2. A fabricated bearing according to claim 1, wherein: the first mounting groove and the second mounting groove are in a dry shape; the inner surface and the outer surface of the inner ring insert are in the shape of circular arcs matched with the inner surface and the outer surface of the inner ring; the shape of the inner surface and the outer surface of the outer ring insert is arc-shaped which is matched with the inner surface and the outer surface of the outer ring.

3. A fabricated bearing according to claim 1, wherein: outer ring positioning holes are respectively formed in the end faces of two sides of the first outer ring and the second outer ring, and the two adjacent outer ring positioning holes are used for installing positioning pins.

4. A fabricated bearing according to claim 1, wherein: and a roller axial clearance adjusting pressure plate is also arranged between the inner ring and the outer ring.