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Slide bearing

By arranging fine grooves with asymmetric change rates in the circumferential direction at the axial end of the split member on the lower side of the sliding bearing, the problems of reduced load capacity and excessive oil outflow caused by the reduced sliding area are solved, and friction reduction is achieved. The effect and appropriate oil film pressure gradient reduce oil leakage.

Inactive Publication Date: 2016-08-10
TAIHO KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the width of the bearing is narrowed, the outflow of oil increases

Method used

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Examples

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Embodiment Construction

[0022] Next, embodiments of the invention will be described. It should be noted, figure 1 It is a front view of the sliding bearing 1, and the up and down directions in the drawing are taken as the up and down directions, and the directions approaching the viewer and away from the viewer in the drawing are taken as axial directions (front and rear directions).

[0023] First, use figure 1 as well as figure 2 , the split member 2 constituting the sliding bearing 1 of the first embodiment will be described.

[0024] The sliding bearing 1 is a cylindrical member, such as figure 1 As shown, it is suitable for the plain bearing structure of the crankshaft 11 of the engine. The slide bearing 1 is composed of two split components 2,2. The two split members 2, 2 are in the shape of dividing the cylinder into two in a direction parallel to the axial direction, and are formed in a semicircular cross section. In this embodiment, the split members 2, 2 are arranged up and down, ...

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PUM

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Abstract

Provided is a slide bearing capable of obtaining a friction reduction effect and capable of suppressing the total amount of oil outflow. The slide bearing (1) has half members (2, 2) being a cylinder split in two parallel to the axial direction, arranged vertically. A narrow groove (3) is provided in the circumferential direction in an axial direction end section of the lower half member (2). The slide bearing is formed such that: the depth (d) of the narrow groove (3) in the radial direction is caused to change relative to the circumferential direction; and the gradient of the depth (d) of the narrow groove (3) in the radial direction is asymmetrical having the center in the circumferential direction (bearing angle (Omega) being Omega 2) as the center axis thereof.

Description

technical field [0001] The invention relates to sliding bearing technology, and relates to the sliding bearing technology in which split members are arranged up and down, and the split members are divided into two by dividing a cylinder in a direction parallel to the axial direction. Background technique [0002] Conventionally, there is known a sliding bearing which is used for pivotally supporting a crankshaft of an engine and is a sliding bearing having a split structure by combining two members having a cylindrical shape divided into two halves. In addition, in order to reduce the sliding area of ​​the bearing and obtain an anti-friction effect, there is a structure in which the width of the bearing is narrowed. However, when the width of the bearing is narrowed, the amount of outflowing oil increases. Therefore, there is known a bearing (for example, refer to Patent Document 1) in which recessed portions (thin grooves) are formed over the entire circumference of both e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/10F16C9/02F16C17/02
CPCF16C9/02F16C17/022F16C33/046F16C33/1065
Owner TAIHO KOGYO CO LTD
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