CN201255171Y

CN201255171Y - 200ps-450ps power medium and heavy-duty car engine crankshaft bush

Info

Publication number: CN201255171Y
Application number: CNU2008201875369U
Authority: CN
Inventors: 黄虹; 赵传海; 王刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-08
Filing date: 2008-08-08
Publication date: 2009-06-10
Anticipated expiration: 2018-08-08

Abstract

The utility model relates to a crankshaft bushing, in particular to a crankshaft bushing for middle and heavy automobile engines with power between 200 and 450ps, comprising an upper crankshaft, an upper crankshaft thrust piece, a lower crankshaft and a lower crankshaft thrust piece. The utility model is characterized in that the upper crankshaft and the upper crankshaft thrust piece are fixed into a whole body, and the lower crankshaft and the lower crankshaft thrust piece are fixed into a whole body. The wearing capacity of the utility model is more than twice the reasonable wearing capacity, and the utility model does not fall off and has long service life, impact resistance, wear and tear resistance; the utility model can also reduce the processing precision, save cost, facilitate assembly, position accurately, and avoid the related parts (such as a crankshaft and a cylinder body) from being prematurely damaged or even scrapped. The crankshaft bushing is suitable for middle and heavy automobile engines with power between 200 and 450ps, and is especially for WD615 series and WD618 series engines of middle and heavy automobiles.

Description

The bent bearing shell of 200ps～450ps power heavy Duty Automobile Engine

(1) technical field

The utility model relates to a kind of bent bearing shell, the bent bearing shell of particularly a kind of 200ps～450ps power heavy Duty Automobile Engine.

(2) background technique

Existing WD615 series, the bent bearing shell of WD618 series heavy Duty Automobile Engine be designed to top bearing shell and top bearing shell thrust plate, lower bearing and lower bearing thrust plate are respectively the split setting, this design surpasses fair wear and tear amount (the fair wear and tear amount is about 5～30 μ m) top bearing shell thrust plate and the lower bearing thrust plate is very easy comes off, working life is short, requires the machining accuracy height.

(3) summary of the invention

The utility model is in order to remedy the deficiencies in the prior art, a kind of long service life is provided, save cost the bent bearing shell of 200ps～450ps power heavy Duty Automobile Engine.

The utility model is achieved by the following technical solution:

The bent bearing shell of a kind of 200ps～450ps power heavy Duty Automobile Engine, comprise 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.

The utlity model has following characteristics:

1, surpasses two times of fair wear and tear amounts, also can not come off long service life, shock-resistant, wear-resistant;

2, the utility model disjunctor design back is said from another angle and can be reduced machining accuracy; Save cost; Easy to assembly, location accurately;

3, after the utility model disjunctor design, avoided associated part (as bent axle, cylinder body) to damage prematurely even scrapped;

4, after the design of the utility model disjunctor, technical-economic index improves 3-5 doubly.

Bent bearing shell of the present utility model is applicable to 200ps～450ps power heavy Duty Automobile Engine, is specially adapted to WD615 series, WD618 series heavy Duty Automobile Engine.

(4) description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 looks schematic representation for the master of bent bearing shell on the utility model;

Fig. 2 is the schematic top plan view of bent bearing shell on the utility model;

Fig. 3 looks schematic representation for the master of bent bearing shell under the utility model;

Fig. 4 is the schematic top plan view of bent bearing shell under the utility model.

Among the figure, 1 top bearing shell, 2 top bearing shell thrust plates, 3 lower bearinges, 4 lower bearing thrust plates.

(5) embodiment

Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises top bearing shell 1 and top bearing shell thrust plate 2, lower bearing 3 and lower bearing thrust plate 4, and top bearing shell 1 and top bearing shell thrust plate 2 are fixed as one, and lower bearing 3 and lower bearing thrust plate 4 are fixed as one.This product surpasses two times of fair wear and tear amounts, also can not come off long service life, shock-resistant, wear-resistant; Can reduce machining accuracy from another angle, save cost, easy to assembly, location accurately; Avoided associated part (as bent axle, cylinder body) to damage prematurely even scrapped.

Claims

1. the bent bearing shell of a 200ps～450ps power heavy Duty Automobile Engine, comprise top bearing shell (1) and top bearing shell thrust plate (2), lower bearing (3) and lower bearing thrust plate (4), it is characterized in that: described top bearing shell (1) and top bearing shell thrust plate (2) are fixed as one, and lower bearing (3) and lower bearing thrust plate (4) are fixed as one.