CN2563351Y

CN2563351Y - Full steel base mosaic self lubricating centre regulating and joint bearing

Info

Publication number: CN2563351Y
Application number: CN 02278763
Authority: CN
Inventors: 邹赤兵; 胡继东; 汤辉农
Original assignee: WUHAN NANXING METALLURG EQUIPM
Current assignee: WUHAN NANXING METALLURG EQUIPM
Priority date: 2002-08-13
Filing date: 2002-08-13
Publication date: 2003-07-30
Anticipated expiration: 2012-08-13

Abstract

The utility model discloses a full steel base mosaic self lubricating centre regulating and joint bearing which belongs to the adjustable sliding bearing, consisting of a steel inside track and a steel outside track, wherein, both the spherical outside surface of the inside track and the spherical inside surface of the inside track are smooth spherical surface; the spherical outside surface of the inside track is provided with a plurality of dead holes or pylomes evenly distributed; solid lubricant is embedded into the dead holes or pylomes; the structure of the outside track is single slot type or split type; the split type outside track is positioned and fastened by a pinch cock; the outside track is provided with a penetrable small oil hole; the surface hardness of both the inside track and the outside track reach or approach HCR 60. The utility model has a simple structure and tight matching of inside track and outside track. Both the inside and outside tracks are made of bearing steel, and the whole carrying capacity of the bearing is greatly increased. The utility model can be applicable to bad conditions such as high temperature, low temperature, overloading and low velocity, environmental pollution, etc. and has particular dominance if applied to continuous casting, roll table or cooling bank.

Description

All steel base inlaid type selflubricating aligning, joint shaft bearing

Technical field

The utility model belongs to field of bearings, but the aligning slide bearing in particular for aiming at or locating.

Background technique

In the prior art, aligning antifriction bearing is to form by retainer, location ball (roller) between inside and outside circle, when it uses under the reasonable situation of working condition, has great advantage; But when comparatively working under the condition of severe, working condition then has tangible deficiency; Fuel feeding lost efficacy when for example, temperature was high; The stifled easily for a long time card of dust foreign material; Impact when big broken easily or the like.For this reason, improve and produced a kind of inlaid type selflubricating selfaligning bearing.The inside and outside cycle basis body of this selflubricating selfaligning bearing adopts steel or the outer steel of interior copper in the outer copper usually, and outer ring structure adopts gap type; The selflubricating selfaligning bearing of this gap type is because there are two breach the outer ring, thus can not form complete lubricating film one, and also oiling agent runs off easily, and using effect is undesirable.If adopt single seam formula of copper in the outer steel, when assembling, inner ring is pressed into the outer ring and must produces distortion inadequately owing to the hardness of copper material itself and the inner ring top is pulled.As for the joint shaft bearing that the inner ring wall is thin, width is big, if adopt the words of copper inner ring and reach through hole, must cause that inner ring intensity reduces, during use, copper base inner ring expanded by heating coefficient is big, adds the frictional heat of motion and the influence of high ambient temperature, the interference of copper base inner ring becomes in the cooperation of axle and is slidingly matched, with making joint shaft bearing lose the effect of adjusting, when serious, also can cause the wearing and tearing of axle; Therefore, in the prior art, self-lubricating knuckle bearing is with (or claiming to be compounded on the inner ball surface of outer ring) on the inner ball surface of lubriation material attached to the outer ring, but the existence of this lubriation material can reduce the bearing capacity and the support force of bearing, also easily makes bearing loosening.How addressing the above problem, reality offers our problem just.

Summary of the invention

The purpose of this utility model provides a kind of all steel base inlaid type selflubricating aligning, joint shaft bearing, and it is rational in infrastructure, can proper functioning under the operating mode harsh conditions, and can guarantee that bearing is high-intensity, be running steadily and reliably.

The purpose of this utility model is achieved in that all steel base inlaid type selflubricating aligning, joint shaft bearing, form by inner ring and outer ring, base steel inner ring outer spherical surface that it cooperatively interacts and base steel outer ring inner ball surface are level and smooth sphere, on the outer spherical surface of inner ring, dig a plurality of equally distributed blind holes or through hole, be inlaid with solid lubricant in blind hole or the through hole.The structure of outer ring is single seam formula or split type, and split outer race is located and fastening with the camber spring clamp.

Have the draw-in groove of 1-2 ring on the periphery of split outer race, the shape of cross section of draw-in groove is semicircle, oval shape, square, rectangular, trapezoidal, triangle or other shape; The shape of cross section that is stuck in the arc spring clamp in the draw-in groove matches with draw-in groove, and its arc girth should be greater than semicircle.

The outer ring is provided with penetrating little oilhole.

The inner ring of being made by the base steel material and the surface hardness of outer ring should reach HRC54-HRC64.

Custom according to people, inside and outside circle width unanimity, inner ring wall a part of model thicker, that the can regulate degree is less were called selfaligning bearing during we held the expansion mandrel in the utility model, and another part inner race width a part of model big, that the inner ring wall approaches, the can regulate degree is bigger is called joint shaft bearing.

Of the present utility model simple in structure, inside and outside circle cooperates closely, can not only bear radial load, and can bear pure axial load or radially, axial simultaneous joint load.Because inside and outside circle is base steel, the integrated carrying ability is strengthened greatly, and the thickness of inner ring makes the blind hole or the through hole that are dug on its outer spherical surface have enough degree of depth, thereby has guaranteed the normal loading that solid lubricant is inlayed.The design of little oilhole can combine the use of solid lubricant and fluid lubricant, makes the performance of oiling agent obtain the most effective performance under various condition of different temperatures.Cooperate compact between the utility model Internal and external cycle, dirt generally is difficult to enter, and less debris is entered, because the solid lubricant quality that inner ring is inlayed is softer, it can contain into a spot of dirt (promptly so-called " eating into "), thereby avoids the wearing and tearing of foreign matter to sphere effectively; And the inside and outside circle quality of all steel base of the present utility model is hard, and sphere is level and smooth, can guarantee that bearing stably moves and is operated under the operating mode harsh conditions.

Description of drawings

Accompanying drawing 1 is the aligning of Internal and external cycle width unanimity, the structural representation of joint shaft bearing;

Accompanying drawing 2 is that inner race width is greater than the aligning of outer ring, the structural representation of joint shaft bearing.

Accompanying drawing acceptance of the bid keep the score state as follows: 1---bearing outer ring; 2---bearing inner race; 3---solid lubricant; 4---little oilhole; 5---draw-in groove; 6---the camber spring clamp.

Embodiment

Shown in accompanying

drawing

1,2, aligning of the present utility model, joint shaft bearing are made up of base steel outer ring 1 and base steel inner ring 2, the outer spherical surface of the inner ball surface of outer ring 1 and inner ring 2 is level and smooth sphere and cooperatively interacts it, a plurality of equally distributed blind holes or through hole on the inner ring outer spherical surface, have been dug, be inlaid with solid lubricant 3 in blind hole or the through hole, outer ring 1 structure is single seam formula or split type, and split outer race is located and fastening with pinch cock.The periphery of split outer race 1 is provided with the draw-in groove 5 of 1-2 ring, and the shape of cross section of draw-in groove is semicircle, oval shape, square, rectangular, trapezoidal, triangle or other shape; The shape of cross section of draw-in groove 5 is square among Fig. 1, and the shape of cross section of draw-in groove 5 is an oval shape among Fig. 2; The shape of cross section that is stuck in the arc spring clamp 6 in the draw-in groove 5 matches with draw-in groove, and its arc girth should be greater than semicircle.Outer ring 1 is provided with the little oilhole 4 that can add the liquid oiling agent.Inside and outside circle width unanimity shown in Figure 1, the inner ring wall is thicker, and the less model of can regulate degree is called selfaligning bearing; Inner race width shown in Figure 2 is bigger, and the inner ring wall is thinner, and the model that the can regulate degree is bigger is called joint shaft bearing.Aligning of the present utility model, joint shaft bearing are applicable under mal-conditions such as high temperature, low temperature, heavy-duty low-speed or environmental pollution and work that application has special advantages on continuous casting, roller-way or cold bed.

Claims

1, a kind of all steel base inlaid type selflubricating aligning, joint shaft bearing are made up of inner ring and outer ring, and it is characterized in that: the inner ball surface of the outer spherical surface of base steel inner ring (2) and base steel outer ring (1) is the level and smooth sphere that cooperatively interacts; On the outer spherical surface of inner ring (2), have a plurality of equally distributed blind hole or through holes that are used for the inlaid solid lubrication agent, be inlaid with solid lubricant (3) in the hole; The structure of outer ring (1) is single seam formula or split type, and split outer race is located and fastening with camber spring clamp (6).

2, aligning according to claim 1, joint shaft bearing, it is characterized in that: the periphery of split outer race (1) is provided with the draw-in groove (5) of 1-2 ring, and the shape of cross section of draw-in groove (5) is semicircle, oval shape, square, rectangular, trapezoidal, triangle or other shape; The shape of cross section that is stuck in the arc spring clamp in the draw-in groove matches with draw-in groove, and its arc girth should be greater than semicircle.

3, aligning according to claim 1 and 2, joint shaft bearing is characterized in that: the surface hardness of base steel outer ring (1) and base steel inner ring (2) should reach HRC54-HRC64.