CN2286502Y

CN2286502Y - Bearing specially used for self-locking round roller

Info

Publication number: CN2286502Y
Application number: CN 97235814
Authority: CN
Inventors: 于守滨; 刘白眉; 谷建玲
Original assignee: QIUXING BEARING GROUP CO Ltd JIANGSU PROV
Current assignee: QIUXING BEARING GROUP CO Ltd JIANGSU PROV
Priority date: 1997-04-22
Filing date: 1997-04-22
Publication date: 1998-07-22
Anticipated expiration: 2007-04-22

Abstract

The utility model relates to a special bearing of the ZH1105 diesel engine. The utility model is composed of an outer ring, an inner ring, rollers and a baffle ring. The outer ring forms a ring-shaped body, and the flanges of two inner sides of the outer ring form slopes. The inner ring also forms a ring-shaped body, and the flanges of the inner ring also form slopes. One side face of the inner ring is provided with the baffle ring, the inner side of the outer end of the baffle ring also forms a slope. The rollers are fully arranged between the inner and the outer rings. Both end faces of each roller forms a spherical face is contacted with the slope of the baffle ring and the slopes of the corresponding flanges of the inner and the outer rings, causing the bearing to form an oil film at the time of work.

Description

Closely packed self-locking cylindrical roller special bearing

The utility model relates to a kind of bearing, the special bearing on particularly a kind of ZH1105 diesel engine.

At present, ZH1105W crankshaft of diesel engine bearing is general roller bearing (model is 92214EW), and it bears big radial impact load rear bearing retainer and easily is scattered, and the lasso fracture can occur, and working life is low, poor reliability.

The purpose of this utility model is exactly in order to address the above problem, and provides a kind of impact resistance big, and functional reliability is good, the closely packed self-locking cylindrical roller special bearing that is used for the ZH1105 diesel engine of long service life.

Technical solution of the present utility model:

A kind of closely packed self-locking cylindrical roller special bearing, it is characterized in that it is made up of outer ring 1, inner ring 2, roller 3 and back-up ring 4, outer ring 1 is an annular solid, its two inboard rib is inclined-plane 5, inner ring 2 also is an annular solid, its rib also is inclined-plane 5, be provided with annular retaining ring 4 in inner ring 2 one sides, this inboard, back-up ring 4 outer end also is inclined-plane 5, be covered with roller 3 between the inside and outside circle 2,1, each roller 3 both ends of the surface is a sphere 6, and the sphere 6 of each roller 3 contacts formation oil film when making bearing working with the corresponding rib inclined-plane 5 of inside and outside circle 2,1 and the inclined-plane 5 of back-up ring 4.

The utility model adopts full roller roller bearing structure, and rolling element increases by two than former bearing structure, enlarged diameter 1mm, and rated load strengthens 3000N, and it is above that bearing doubles working life, and bearing rigidity increases, and impact resistance is big.The utility model novel structure, reliable working performance, its limit speed can reach 3500 rev/mins, can satisfy the requirement of 2100 rev/mins of ZH1105W maximum speeds fully, and can bear axial load, and effect is very good.

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the circle position structure enlarged diagram of four jiaos on roller among Fig. 1.

As Fig. 1,2, the inclined-plane 5 of the rib inclined-plane 5 of outer ring 1, inner ring 2 and back-up ring 4 in the utility model, its oblique angle is 15-25 '.Between outer ring 1 and the roller 3 and radially fit up gap between inner ring 2 and the roller 3 should be 0.050-0.080mm, and its axial clearance should be 0.050-0.160mm, and the circumferential clearance between each roller 3 is 0.1-0.15mm.

The utility model so can increase the quantity of roller 3, increases rolling element and inside and outside circle 2,1 surface of contact owing to removed retainer, and bearing rigidity is good, and shock-resistant problem is resolved, and bearing capacity increases.Because the rib and the back-up ring 4 of inside and outside circle 2,1 all adopt inclined-plane 5 structures, roller 3 has adopted pommel face 6 structures, just can form oil film like this during their cooperatings, increases the fatigue life of bearing greatly.

Claims

1, a kind of closely packed self-locking cylindrical roller special bearing, it is characterized in that it is by outer ring (1), inner ring (2), roller (3) and back-up ring (4) are formed, outer ring (1) is an annular solid, its two inboard rib is inclined-plane (5), inner ring (2) also is an annular solid, its rib also is inclined-plane (5), be provided with annular retaining ring (4) in inner ring (2) one sides, this back-up ring (4) inboard, outer end also is inclined-plane (5), in, outer ring (2), (1) is covered with roller (3) between, each roller (3) both ends of the surface are sphere (6), and the sphere (6) of each roller (3) with in, outer ring (2), (1) the corresponding rib inclined-plane (5) and the inclined-plane (5) of back-up ring (4) contact, and form oil film when making bearing working.

2, by the described closely packed self-locking of claim 1 cylindrical roller special bearing, it is characterized in that the rib inclined-plane (5) of outer ring (1), inner ring (2) and the inclined-plane (5) of back-up ring (4), its oblique angle is 15-25 '.

3, by the described closely packed self-locking of claim 1 cylindrical roller special bearing, it is characterized in that between outer ring (1) and the roller (3) and the radially fit up gap between inner ring (2) and the roller (3) should be 0.050--0.080mm, its axial clearance should be 0.050-0.160mm, and the circumferential clearance between each roller (3) is 0.1-0.15mm.