CN202768640U

CN202768640U - Dispersedly-embedded self-lubricating bearing bush with thick wall

Info

Publication number: CN202768640U
Application number: CN201220463715.7U
Authority: CN
Inventors: 周引春; 袁翔飞; 陈应东
Original assignee: ZHEJIANG SF OILLESS BEARING CO Ltd
Current assignee: ZHEJIANG SF OILLESS BEARING CO Ltd
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-06
Anticipated expiration: 2022-09-12

Abstract

The utility model discloses a dispersedly-embedded self-lubricating bearing bush with a thick wall, and aims at providing the bearing bush simple in structure, high in bonding strength, good in manufacturability, excellent in self-lubricating performance and capable of being produced on a large scale. The bearing bush comprises an outer steel sleeve, and a rolled dispersedly-embedded copper-nickel self-lubricating bearing bush body matches in an inner hole of the outer steel sleeve. The bearing bush is characterized in that a groove is produced on an annular joint at one or two ends of the outer steel sleeve and the dispersedly-embedded copper-nickel self-lubricating bearing bush body which are fixedly connected through welding at the groove. According to the bearing bush, the outer steel sleeve and the dispersedly-embedded copper-nickel self-lubricating bearing bush body are fixedly connected through welding, therefore a bonding strength higher than that through direct sintering is achieved, the problem that the rolled dispersedly-embedded copper-nickel self-lubricating bearing bush body falls off from the outer steel sleeve can be effectively solved even if the bearing bush operates under high load and high environmental temperature, and the bearing bush can be widely applied to other mechanical products such as die guide bushes, engineering machinery and injection molding machinery.

Description

The heavy wall embedding self lubrication bearing that falls apart

Affiliated technical field

The present invention relates to a kind of sliding bearing, relate in particular to the self lubrication bearing of the loose embedding of a kind of heavy wall.

Background technique

Loose embedding self oiling bearing, that surface of steel plate sintered copper nickel alloy is arranged, and loose embedding graphite, molybdenum disulfide and the self oiling bearing that forms, its heatproof reaches 600 ℃, self-lubricating property is better than solid and inlays lubricating bearings, but because production process is to make first the band material, roll into again self lubrication bearing, therefore, the wall thickness of axle sleeve can only be accomplished below the 4mm, the diameter of bearing is less, and wall thickness is just thinner, so just brings narrow limitation to application.For addressing this problem, have now directly the method for corronil sintering at the steel bushing inwall, although solved the problem of wall thickness, but because the sintering process press power is inadequate, produce easily corronil and separate, peel off with steel bushing, surface density is inadequate simultaneously, and bearing pressure is lower.

Summary of the invention

The object of the present invention is to provide a kind of simple in structure, adhesive strength is high, good manufacturability, self-lubricating property is good, the loose embedding self lubrication bearing of heavy wall that can large-scale production in enormous quantities.

In order to reach above-mentioned requirements, the technological scheme that adopts is: it includes outer steel sleeve, in the endoporus of outer steel sleeve, be combined with the loose embedding copper nickel self lubrication bearing that rolls, it is characterized in that being shaped with groove at an end or the two end ring shape seam mouths of outer steel sleeve and loose embedding copper nickel self lubrication bearing, outer steel sleeve and loose embedding copper nickel self lubrication bearing are fixed together through welding at groove.

Be shaped with flange on the described outer steel sleeve.

According to the loose embedding self lubrication bearing of heavy wall of said structure design, between outer steel sleeve and loose embedding copper nickel self lubrication bearing, through welding both firmly are connected, reached the adhesive strength higher than both direct sinterings.Even than heavy load and working than under the high ambient temperature, also can effectively avoid rolling the problem that loose embedding self lubrication bearing is deviate from from outer steel sleeve.It can be widely used in mold guide sleeve, engineering machinery, injection machine etc. and other engineering goods.

Description of drawings

The plan view of the loose embedding self lubrication bearing of the non-flanged heavy wall of Fig. 1 outer steel sleeve;

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

Fig. 3 outer steel sleeve has the plan view of the loose embedding self lubrication bearing of heavy wall of flange;

Fig. 4 is the left view of Fig. 3.

Among the figure: 1, outer steel sleeve; 2, loose embedding copper nickel self lubrication bearing; 3, groove; 4, girth welding 5, flange.

Embodiment

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

Fig. 1, Fig. 2 are the structural drawing of the loose embedding self lubrication bearing of heavy wall, it includes outer steel sleeve 1, interference fit has the loose embedding copper nickel self lubrication bearing 2 that rolls in the endoporus of outer steel sleeve 1, an end or two end ring shape seam mouths at outer steel sleeve 1 and loose embedding copper nickel self lubrication bearing 2 are shaped with V-arrangement groove 3, outer steel sleeve 1 and loose embedding copper nickel self lubrication bearing 2 are fixed together through girth welding 4 at V-arrangement groove 3.The pattern of outer steel sleeve 1 also can be made into flanged 5, as shown in Figure 3, Figure 4.

Claims

1. the loose embedding self lubrication bearing of heavy wall, it includes outer steel sleeve, in the endoporus of outer steel sleeve, be combined with the loose embedding copper nickel self lubrication bearing that rolls, it is characterized in that being shaped with groove at an end or the two end ring shape seam mouths of outer steel sleeve and loose embedding copper nickel self lubrication bearing, outer steel sleeve and loose embedding copper nickel self lubrication bearing are fixed together through welding at groove.

2. the loose embedding self lubrication bearing of heavy wall according to claim 1 is characterised in that on the described outer steel sleeve to be shaped with flange.