CN203655880U

CN203655880U - Thrust bearing bush for engine crankshaft

Info

Publication number: CN203655880U
Application number: CN201320890813.3U
Authority: CN
Inventors: 黄第云; 吴恢栋; 蔚兴建; 安艳霞; 张锦; 吕昂; 陈彪; 平帅彪; 柯满贤
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-06-18
Anticipated expiration: 2023-12-31

Abstract

The utility model discloses a thrust bearing bush for an engine crankshaft and aims at providing a thrust bearing bush for engine crankshaft, and the thrust bearing bush is simple in structure, convenient to disassemble and high in reliability. The thrust bearing bush comprises a bearing bush, wherein two end surfaces of a bearing bush seat are provided with bayonets, and a left thrust bush and a right thrust bush are fixedly connected into a whole by virtue of the bayonets and gaps. The thrust bearing bush disclosed by the utility model is applicable to various engine crankshafts.

Description

A kind of engine crankshaft thrust bearing shell

Technical field

The utility model relates to sliding bearing field, specifically, relates to a kind of engine crankshaft thrust bearing shell.

Background technique

Engine crankshaft thrust plate is installed on the corresponding position of crankshaft thrust shelves, directly contacts the wearing and tearing that cause for what prevent bent axle and body.Crankshaft thrust collar must guarantee not interfere, do not get loose in the time of assembling.The function of bearing shell is the bearing shell (comprising the part on axle) that support rotates, and keeps running accuracy, reduces the friction and wear between axle and supporting.At present, thrust plate and bearing shell are installed separately.Crankshaft thrust collar is connected with thrust main bearing seat by pin, and complexity is not only installed in assembling like this, in service also unreliable, easily drops.Therefore, be necessary to research and develop a kind of new structure.

At present, we retrieve the open source literature of some engine crankshafts bearing shell, for example:

1. Chinese Patent Application No. 200820187536.9, open day on June 10th, 2009, this application case discloses a kind of 200ps～450ps power heavy Duty Automobile Engine engine crankshaft bush, it comprises top bearing shell and top bearing shell thrust plate, lower bearing and lower bearing thrust plate, its special way is: described top bearing shell and top bearing shell thrust plate are fixed as one, and lower bearing and lower bearing thrust plate are fixed as one.Its deficiency is: bearing shell and thrust plate are integral type structure, processes more difficultly, needs integral replacing after wearing and tearing, and cost is higher.

2. Chinese Patent Application No. 01222665.3, in open day on December 24th, 2003, this application case discloses a kind of engine crank bushs with axial grooves, and it comprises two semicircular synthetic type bearing shell; On two end faces of engine crankshaft bearing shell, along axial direction, make to the inside chamfering, and end face cylindrical and both sides constant, through two semicircular bearing shell hybrid-engine bent axle axial oil groove bearing shell.Its deficiency is: 1. thrust plate and bearing shell are installed separately when mounted, causes inconvenience is installed; 2. thrust plate need be fixed with pin, and reliability is not high.

Summary of the invention

For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of simple in structure, convenient disassembly, engine crankshaft thrust bearing shell that reliability is high.

For achieving the above object, the present invention is achieved by the following scheme:

A kind of engine crankshaft thrust bearing shell, comprises bearing shell, and the two ends of described bearing shell are fixedly connected with left thrust shoe and right thrust shoe.

Two end faces of described bush seat are provided with bayonet socket, and described bayonet socket is fixedly connected with integral with left thrust shoe, right thrust shoe by breach.

The two ends of described bearing shell are fixedly connected with left thrust shoe by pin and right thrust shoe is integral.

Compared with prior art, the utlity model has following beneficial effect:

1. simple in structure, easy to process.When the utility model is manufactured, bearing shell and thrust plate are very simple shape, and manufacturing process is simple, is conducive to cut down finished cost.

2. convenient disassembly, is convenient to maintenance.The utility model is fixed together bearing shell and thrust plate by opening and breach, forms an assembly, and registration when assembling and facilitating occurs after wearing and tearing after using, and replace worn part as required, reduces maintenance cost.

3. reliability is high.The utility model has been cancelled the fixing pin of traditional crankshaft thrust collar, is stuck on thrust main bearing seat and adopt thrust plate and bearing shell to be fixed into concave shape, has avoided the risk that drops on thrust plate afterwards because of pin wearing and tearing, has improved the reliability of motor.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the structural representation of the utility model bearing shell;

Fig. 4 is the structural representation of the right thrust shoe of the utility model;

Component title and sequence number in figure:

Bearing shell 1, bayonet socket 2, left thrust shoe 3, right thrust shoe 4.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but does not limit protection domain of the present utility model and application area:

Embodiment 1:

As shown in Figure 1 and Figure 2, the utility model comprises bearing shell 1, and two end faces of bush seat 1 are provided with bayonet socket 2, left thrust shoe 3, right thrust shoe 4 by breach and bayonet socket 2 be fixedly connected with integral.

In the present embodiment, when assembling, first left thrust shoe 3, right thrust shoe 4 by breach and bayonet socket 2 be fixedly connected with integrally, then assemble with thrust main bearing seat.

Implement 2:

Be with embodiment 1 difference: the two ends of bearing shell 1 be fixedly connected with left thrust shoe 3 by pin and right thrust shoe 4 integral.

In the present embodiment, when assembling, first left thrust shoe 3, right thrust shoe 4 by pin be fixedly connected with integrally, then assemble with thrust main bearing seat.

Claims

1. an engine crankshaft thrust bearing shell, is characterized in that: comprise bearing shell (1), the two ends of described bearing shell (1) are fixedly connected with left thrust shoe (3) and right thrust shoe (4).

2. engine crankshaft thrust bearing shell according to claim 1, is characterized in that: two end faces of described bush seat (1) are provided with bayonet socket (2), and described bayonet socket (2) is fixedly connected with integral with left thrust shoe (3), right thrust shoe (4) by breach.

3. engine crankshaft thrust bearing shell according to claim 1 and 2, is characterized in that: the two ends of described bearing shell (1) are fixedly connected with left thrust shoe (3) by pin and right thrust shoe (4) is integral.