JPS5942315U

JPS5942315U - Engine crankshaft bearing device

Info

Publication number: JPS5942315U
Application number: JP13905382U
Authority: JP
Inventors: 昌宏山下; 鳥井　怜; 健次山下; 一利岡本; 正中野
Original assignee: 株式会社クボタ
Priority date: 1982-09-13
Filing date: 1982-09-13
Publication date: 1984-03-19
Also published as: JPS6231691Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の実施例を示し、第１図は水
冷縦形エンジンのクランク軸軸受構造を示す縦断側面図
を示し、第２図は要部のｉ部縦断正面図、第３図は要部
の分解斜視図、第４図は要部の平面図であり、第５図は
従来例の第１図相当図である。１・・・エンジン、２・・・クランクケース、２ａ・・
・２の端壁、８・・・クランク軸、８ａ・・・８のジャ
ーナル、Ｂ−ｂ・・・８の外端部（大径端部）、１０・
・・クランク室、１２・・・軸受孔、１３・・・ベアリ
ングケース、１４・・・軸受部、１６・・・封止筒部、
１７・・・取付鍔、１８・・・割面、２２・・・オイル
シール、２３・・・オイル回収室、３１・・・連結部、
３２・・・オイル回収溝、３４・・・オイル戻し孔、３
５・・・取付座、３６・・・ボルト、３８・・・肉壁。1 to 4 show an embodiment of the present invention, FIG. 1 is a vertical sectional side view showing the crankshaft bearing structure of a water-cooled vertical engine, FIG. 3 is an exploded perspective view of the main parts, FIG. 4 is a plan view of the main parts, and FIG. 5 is a view corresponding to FIG. 1 of the conventional example. 1...Engine, 2...Crankcase, 2a...
・End wall of 2, 8... Crankshaft, 8a... Journal of 8, B-b... Outer end of 8 (large diameter end), 10.
... Crank chamber, 12... Bearing hole, 13... Bearing case, 14... Bearing part, 16... Sealing tube part,
17...Mounting collar, 18...Cut surface, 22...Oil seal, 23...Oil recovery chamber, 31...Connection part,
32... Oil recovery groove, 34... Oil return hole, 3
5... Mounting seat, 36... Bolt, 38... Flesh wall.

Claims

[Scope of utility model registration request]

A shaft 4 is attached to the end wall 2a of the crankcase 2 of the engine 1.
The receiving hole 12 is bored, and the journal 8a of the crankshaft 8 is rotatably supported in the bearing hole 12 via the half-shaped bearing case 13. A two-split sealing cylinder part 16 is integrally provided protruding from the outer periphery of the end face toward the outside of the crank case 2, and each mounting flange part 17 is integrally provided from the outer peripheral surface of each sealing cylinder part 16. A mounting seat 35 is formed on the outer end surface of the wall 38 around the bearing hole 12, and the mounting flange 17 is fixed to the mounting seat 35 with bolts 36. End portion 8b
An oil seal 22 is interposed between and the sealing cylinder portion 16,
An oil recovery chamber 23 is formed between the oil seal 22 and the bearing section 14 within the sealing cylinder section 16, and an oil return hole 34 is formed in the bearing section 14 for returning the oil in the oil recovery chamber 23 into the crank chamber 10. A bearing for an engine crankshaft, characterized in that an oil recovery groove 32 is formed over the entire radial length of a connecting part 31 between a bearing part 14 and a sealing cylinder part 16 in a split surface 18 of both bearing cases 13. Device.