CN211175012U - Plain bearing assembly - Google Patents

Abstract

A sliding bearing assembly, comprising a bearing seat (1), a bearing cover (2) mounted on the bearing seat (1), a journal (3), and a plurality of bearing bushes (4) sleeved on the journal (3); the bearing The inner surfaces of the seat (1) and the bearing cover (2) are provided with a plurality of second raceways (9) along the axial direction, and the outer surface of the journal (3) is provided with a plurality of first raceways along the axial direction (8); the bearing bush (4) includes a support ring (5), the outer surface of the support ring (5) is provided with a first convex spherical surface (6) matching with the second raceway (9), and the inner surface thereof is provided with and The first concave raceway (8) is matched with the second convex spherical surface (7); the sliding bearing assembly of the utility model not only has small starting friction torque, simple structure, convenient maintenance, but also high transmission efficiency, and also saves the need for the sliding bearing. bushing parts.

Description

Plain bearing assembly

technical field

The utility model belongs to the field of bearings, in particular to a sliding bearing assembly.

Background technique

Sliding bearings are bearings that work under sliding friction and have the advantages of strong bearing capacity, simple structure, and good vibration resistance. Sliding bearings are divided into integral and detachable types. Sliding bearings work stably, reliably, and have strong bearing capacity, but they usually have disadvantages such as large friction coefficient and large heat generation.

Utility model content

The purpose of the present invention is to provide a sliding bearing assembly.

The purpose of this utility model is to adopt the following technical solutions to achieve. The sliding bearing assembly proposed according to the present invention includes a bearing seat 1, a bearing cover 2 mounted on the bearing seat 1, a journal 3, a plurality of bearing bushes 4 sleeved on the journal 3; the bearing seat 1 and the bearing cover 2 The inner surface of the shaft is provided with a plurality of second raceways 9 in the axial direction, and the outer surface of the journal 3 is provided with a plurality of first raceways 8 in the axial direction; the bearing bush 4 includes a support ring 5, and the outer surface of the support ring 5 A first convex spherical surface 6 for matching with the second raceway 9 is provided, and its inner surface is for a second convex spherical surface 7 for matching with the first raceway 8 .

Preferably, the bearing bush 4 is a split structure.

The sliding bearing assembly proposed by the utility model has the following advantages:

The sliding bearing assembly of the utility model has the advantages of small starting friction torque, simple structure, convenient maintenance and high transmission efficiency, and also saves the shaft sleeve parts in the sliding bearing.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description, and to make the above and other purposes, features and advantages of the present invention more obvious. It is easy to understand, the preferred embodiments are given below, and the detailed description is as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is an overall schematic diagram of the sliding bearing assembly of the present embodiment.

FIG. 2 is a front view of FIG. 1 .

FIG. 3 is a cross-sectional view at A-A in FIG. 2 .

FIG. 4 is a schematic diagram of the bearing seat in this embodiment.

FIG. 5 is a schematic diagram of the bearing cover in this embodiment.

FIG. 6 is a schematic diagram of a journal in this embodiment.

FIG. 7 is a three-dimensional schematic diagram of the bearing bush in this embodiment.

FIG. 8 is a front view of FIG. 7 .

FIG. 9 is a cross-sectional view at B-B in FIG. 8 .

[reference number]

1- Bearing seat, 2- Bearing cover, 3- Journal, 4- Bearing bush, 5- Support ring, 6- First convex spherical surface, 7- Second convex spherical surface, 8- First raceway, 9- Second roller road.

Detailed ways

In order to further illustrate the technical means and effects adopted by the present utility model to achieve the predetermined purpose, the following in conjunction with the accompanying drawings and preferred examples, the specific implementation, structure, features and effects of the sliding bearing assembly proposed according to the present utility model, Details are as follows.

In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientations or positional relationships of the accompanying drawings, and are only for convenience The present invention is described and simplified, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention.

Please refer to FIG. 1 to FIG. 9 , the sliding bearing assembly of this embodiment includes a bearing seat 1 , a bearing cover 2 mounted on the bearing seat 1 , and a journal 3 . The journal 3 is sleeved with a plurality of bearing bushes 4 along the axial direction, and the bearing cover 2. Installed on the bearing seat 1 by bolting or bonding. The inner surfaces of the bearing seat 1 and the bearing cover 2 are provided with a plurality of concave second raceways 9 in the axial direction. When the bearing cover 2 is installed in the When the bearing seat 1 is on, the second raceway 9 on the bearing seat 1 and the second raceway 9 on the bearing cover 2 form an annular raceway.

When the bearing cover 2 is installed on the bearing seat 1, a plurality of bearing shells 4 are installed in the cavity formed by the bearing cover 2 and the bearing seat 1 along the axial direction, and the bearing shells 4 are sleeved on the journal 3; the outer surface of the journal 3 A plurality of concave first raceways 8 are arranged along the axial direction; the bearing bush 4 includes a support ring 5, and the outer surface of the support ring 5 is provided with a first convex spherical surface 6 matching the second raceway 9, and its inner surface There is a second convex spherical surface 7 that matches the first raceway 8; the first convex spherical surface 6 of the bearing bush 4 is installed in the second raceway 9, and at the same time, the second convex spherical surface 7 of the bearing bush 4 is installed in the first raceway 8, the bearing bush 4 is bonded to the journal 3.

In order to facilitate installation, in this embodiment, the bearing bush 4 adopts a split structure, that is, the bearing bush 4 includes an upper bearing bush and a lower bearing bush. The upper bearing shell is installed in the bearing cover 2, and the lower bearing shell is installed in the bearing seat 1; in order to ensure the bearing capacity, the bearing shell is made of materials with high wear resistance, high hardness and high strength.

In this embodiment, solid lubrication is adopted between the first convex spherical surface 6 and the second raceway 9, and between the second convex spherical surface 7 and the first raceway 8, and the surfaces of the first raceway 8 and the second raceway 9 All are coated with oil solid lubricant; of course, in other embodiments of the utility model, oil lubrication can also be used, that is, an oil groove is machined on the bearing cover 2, and then lubricating oil is injected into the oil groove.

The contact surfaces of the first convex spherical surface 6 and the second raceway 9 and the contact surfaces of the second convex spherical surface 7 and the first raceway 8 are all sprayed with high wear-resistant materials.

Compared with the traditional sliding bearing, the sliding bearing assembly in this embodiment has the advantages of small starting friction torque, simple structure, convenient maintenance, and high transmission efficiency, and also saves the bushing parts in the sliding bearing. .

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (2)

1. A sliding bearing assembly, characterized in that it comprises a bearing seat (1), a bearing cover (2) mounted on the bearing seat (1), a journal (3), and a plurality of sleeves fixed on the journal (3). The bearing bush (4); the inner surfaces of the bearing seat (1) and the bearing cover (2) are provided with a plurality of second raceways (9) in the axial direction, and the outer surface of the journal (3) is provided with a plurality of second raceways (9) in the axial direction A plurality of first raceways (8); the bearing bush (4) includes a support ring (5), and the outer surface of the support ring (5) is provided with a first convex spherical surface (6), Its inner surface is provided with a second convex spherical surface (7) matched with the first raceway (8). 2 . The sliding bearing assembly according to claim 1 , wherein the bearing bush ( 4 ) is a split structure. 3 .

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