CN220337291U - Split bearing bush and positioning device thereof - Google Patents

Abstract

The utility model provides a split bearing bush and a positioning device thereof, which are characterized in that: the bearing bush is arranged in a round hole surrounded by the bearing cover and the bearing seat, each end of the round hole is provided with a boss, and the boss comprises a bearing cover boss and a bearing seat boss and also comprises two identical half-circle positioning rings; the bearing bush is a universal bearing bush; the bearing seat boss is a bellmouth-shaped boss, the bellmouth-shaped boss is a ring seat of a half-ring positioning ring, and the ring width of the half-ring positioning ring is limited to be that a bearing bush in a round hole can be blocked after the half-ring positioning ring is placed on the ring seat. Firstly, the universal bearing bush is installed in the round hole, then the half-circle positioning ring is placed in the ring seat on the same side, and finally, the half-circle positioning ring is pressed through the bearing cover above, so that the axial positioning of the bearing bush is realized. When the positioning device is damaged by collision, only the half-circle positioning ring needs to be replaced, and the bearing bush does not need to be replaced.

Description

Split bearing bush and positioning device thereof

Technical Field

The utility model relates to a main body main bearing of a reciprocating piston compressor, in particular to a main bearing bush device.

Background

The main bearing of the reciprocating piston compressor body is formed by installing a bearing bush between a bearing cover and a bearing seat, wherein the bearing bush consists of an upper half bush and a lower half bush (the bearing bushes are the bearing bushes consisting of the upper half bush and the lower half bush), the bearing cover and the bearing seat enclose a round hole to be a bearing bush installation hole, and the bearing seat is arranged on the compressor body. In order to realize the axial positioning of the bearing bush in the round hole, each end of the round hole is extended outwards along the axial direction to form a boss, the upper half circle of the boss is a bearing cover boss, the lower half circle of the boss is a bearing seat boss, the round hole is changed into a cylinder, the boss is changed into the cylinder wall of the cylinder, and the cylinder wall (boss) comprises a surface and a cavity surface. The two ends of the bearing bush are turned outwards. When the bearing bush is installed on the cylinder, the bearing bush is equivalent to a lining barrel of the cylinder, and the cylinder is hooped between the flanging at two ends of the lining barrel, so that the axial positioning of the bearing bush is realized, and the bearing bush is provided with the flanging. Compared with the bearing bush without the flanging, namely the general bearing bush, the bearing bush with the flanging belongs to a non-general bearing bush. Due to the arrangement of the axial positioning, the operation of mounting the bearing bush is very simple. But after the bearing bush with the flanging is adopted, the outward flanging of the bearing bush is easy to collide when the bearing bush is installed, the flanging is deformed when serious, the positioning is affected, and then the upper half bush or the lower half bush is replaced, so that the waste is caused.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a split bearing bush and a positioning device thereof.

The purpose of the utility model is realized in the following way: the bearing bush is installed in enclosing into the round hole by bearing cap and bearing frame, and there is the boss at every end of round hole, including bearing cap boss and bearing frame boss, characterized by: it also comprises two identical semi-circle (i.e. semi-circular ring) positioning rings; the bearing bush is a universal bearing bush; the bearing seat boss is a socket-shaped boss (the socket refers to a socket of a pipeline socket), the socket-shaped boss is a ring seat of a half-ring positioning ring, and the ring width of the half-ring positioning ring is limited to be that a bearing bush in a round hole can be blocked after the half-ring positioning ring is placed on the ring seat.

The universal bearing bush is firstly installed in the round hole. And then the half-circle positioning ring is placed in the ring seat at the same side. And finally, pressing the half-circle positioning ring through the bearing cover above, fixing the half-circle positioning ring in the ring seat of the bearing bush, wherein the two sides of the lower half-bush in the bearing bush are blocked by the positioning rings on the same side, namely the bearing bush is clamped in the round hole.

Compared with the prior art, the utility model has the following positive effects: the two half-circle positioning rings have the same function as the flanging in the prior art, and are used for axially positioning the bearing bush in the round hole; different from the prior art, the bearing bush and the positioning device (flanging) are integrated; the utility model is split, so that when the positioning device is damaged by collision, only the half-circle positioning ring is needed to be replaced, and the bearing bush is not needed to be replaced; the utility model adopts a general bearing bush. The expected effect of these two approaches is that the cost of the product is greatly reduced.

Drawings

The utility model is further described below with reference to the drawings.

Fig. 1 is a schematic diagram of the present utility model.

Detailed Description

The bearing bush 2 is arranged in a round hole 4 surrounded by the bearing cover 1 and the bearing seat 3, each end of the round hole is provided with a boss, and the boss comprises a bearing cover boss 51 and a bearing seat boss 52, and also comprises two identical copper half-ring positioning rings 6; the bearing bush is a universal bearing bush; the bearing seat boss 52 is a socket-shaped boss, the socket-shaped boss is a ring seat of a half-ring positioning ring, and the ring width of the half-ring positioning ring is limited to be that a bearing bush in a round hole can be blocked after the half-ring positioning ring is placed on the ring seat. The bearing cap boss 51 is identical to the prior art and is not modified.

The universal bearing bush is firstly installed in the round hole. And then the half-circle positioning ring is placed in the ring seat at the same side. And finally, pressing the half-ring positioning ring through the bearing cover above, fixing the half-ring positioning ring in the ring seat of the bearing bush, and blocking each of the two sides of the bearing bush by the positioning rings of the same side to be clamped in the round hole to realize axial positioning of the bearing bush.

Claims (1)

1. A split bearing bush and a positioning device thereof are provided, wherein the bearing bush is arranged in a round hole surrounded by a bearing cover and a bearing seat, each end of the round hole is provided with a boss, and the split bearing bush comprises a bearing cover boss and a bearing seat boss and is characterized in that: it also comprises two identical half-circle positioning rings; the bearing bush is a universal bearing bush; the bearing seat boss is a bellmouth-shaped boss, the bellmouth-shaped boss is a ring seat of a half-ring positioning ring, and the ring width of the half-ring positioning ring is limited to be that a bearing bush in a round hole can be blocked after the half-ring positioning ring is placed on the ring seat.