CN2731167Y

CN2731167Y - Ceramic bearing

Info

Publication number: CN2731167Y
Application number: CN 200420096150
Authority: CN
Inventors: 赵东寅
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-28
Filing date: 2004-09-28
Publication date: 2005-10-05
Anticipated expiration: 2014-09-28

Abstract

The utility model relates to a ceramic bearing which is composed of an outer cylinder body, an inner cylinder body, a first spacing ring piece, a second spacing ring piece and a shaft rod and the inner cylinder body and the outer cylinder body of which can mutually rotate. For realizing simple structure and convenient dismounting, the utility model adopts the method that the inner cylinder body (20) is arranged in the penetrating containing hole (15) of the shaft line of the outer cylinder body (10). A gap is provided between the inner cylinder body (20) and the outer cylinder body (10), and the inner part of the penetrating shaft hole (25) of the shaft line of the inner cylinder body (10) are penetrated with the shaft rod (40). Both end surfaces of the inner cylinder body and the outer cylindrical body (20, 10) are respectively inserted with the first spacing ring piece (30) and the second spacing ring piece (35) which are provided with the limited gaps.

Description

Ceramic bearing

Technical field

The utility model relates to a kind of bearing, particularly relates to a kind of bearing that can rotate mutually.

Background technique

The kind of bearing is a lot, axial, radial, ball type or roller type etc. are arranged, metallic material makes but mostly be, U. S. Patent " US5927859 " as bulletin on July 27th, 1999, it is made up of inside and outside circle and rolling element, and Internal and external cycle also is provided with several gapped metal cartridges between Internal and external cycle except relatively rotating, complex structure, the cost height.In order to guarantee enough mechanical strengths and wear resistance, corrosion resistance, reduce cost, many bearings that make with pottery are arranged in recent years, as on January 6th, 1993 the disclosed patent No. be " engineering ceramics is made the bearing of roller " of " 91103977 ", what it adopted is to be made of bearing outer ring, bearing inner race and composite ceramics roller, no roller rolling retainer bearing inner race structure is that some R die cavity grooves are set on the inner ring external diameter periphery, place ceramic roller in the R die cavity, roller and bearing inner race turn round synchronously, the roller rotation.Though this bearing has been guaranteed enough mechanical strengths and has been solved the problem of wear resistance, corrosion resistance, places ceramic roller, complex structure, cost height in some R die cavity grooves owing to adopt.

The model utility content

Problem to be solved in the utility model provides a kind of simple in structure, ceramic bearing that cost is low.

In order to address the above problem, the technical solution adopted in the utility model is: a kind of ceramic bearing, mainly form by outer cylinder body, inner barrel, first limited aunular sheet, second limited aunular sheet and axostylus axostyle, one receiving hole that runs through is arranged on the axis of described outer cylinder body, inner barrel is placed in the receiving hole of outer cylinder body, the inside and outside cylindrical shell of being made by stupalith relatively rotates, and is gapped between two cylindrical shells; One axis hole that runs through is arranged on the axis of described inner barrel, be installed with axostylus axostyle in the axis hole; The both ends of the surface of described inside and outside cylindrical shell are embedded with first limited aunular sheet and second limited aunular sheet respectively, and are wherein gapped respectively between the opposing end surface of the inboard of first and second limited aunular sheet and inside and outside cylindrical shell.

Be with the inner barrel of tape spool bar in the outer cylinder body inboard and be embedded with limited aunular sheet in both sides respectively because the utility model has adopted, not only simple in structure, cost is low, and easy accessibility.

The utility model is described in further detail below in conjunction with drawings and Examples.

Description of drawings

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

Fig. 2 is the schematic representation of element assembling of the present utility model;

Fig. 3 is the schematic representation of prismatic element assembling of the present utility model.

Embodiment

In Fig. 1,2,3, the outer cylinder body 10 and the inner barrel 20 of bearing are stupalith.One receiving hole that runs through 15 is arranged on the axis of described outer cylinder body 10, and the receiving hole 15 of outer cylinder body 10 inboards is with an inner barrel 20, and receiving hole 15 sections in the outer cylinder body 10 are circular, also can be prismatic; Receiving hole 15 shapes of the shape of described inner barrel 20 and outer cylinder body 10 inboards are complementary, and inner barrel 20 relatively rotates with outer cylinder body 10, and 15 of the receiving holes of the inboard of inner barrel 20 and outer cylinder body 10 are gapped; For 10 maintenances of inner barrel 20 and outer cylinder body are rotated smoothly, this gap is between 0.005mm～0.05mm, and optimal case is that the gap is at 0.002mm～0.02mm; One axis hole that runs through 25 is arranged on the axis of described inner barrel 20, and the shape of axis hole 25 can be Any shape, is installed with axostylus axostyle 40 in the axis hole 25.In addition, be embedded with first limited aunular sheet 30, second limited aunular sheet 35 respectively at the two ends of inner barrel 20 and outer cylinder body 10, wherein there is certain clearance the inboard of first limited aunular sheet 30 and second limited aunular sheet 35 respectively and between inside and outside cylindrical shell 20,10 formation end faces.

Embodiment 1

The inner barrel 20 that stupalith is made is installed in the receiving hole 15 of inner circular of outer cylinder body 10 of stupalith, after piercing into axostylus axostyle 40 in the axis hole 25 on the axis of inner barrel 20, on the two ends of inner barrel 20 and outer cylinder body 10, load onto first limited aunular sheet 30 and second limited aunular sheet 35 respectively respectively, the gap that inner barrel 20 and outer cylinder body are 10 is 0.002mm～0.02mm, and first limited aunular sheet 30 and second limited aunular sheet 35 and inside and outside cylindrical shell 20,10 constitute the gap of end face maintenance between 0.002mm～0.02mm.

Claims

1, a kind of ceramic bearing, mainly form by outer cylinder body (10), inner barrel (20), first limited aunular sheet (30), second limited aunular sheet (35) and axostylus axostyle (40), inner barrel (20) relatively rotates with outer cylinder body (10), it is characterized in that: a receiving hole that runs through (15) is arranged on the axis of described outer cylinder body (10), inner barrel (20) places in the receiving hole (15) of outer cylinder body (10), gapped between inner barrel (20) and outer cylinder body (10), one axis hole that runs through (25) is arranged on the axis of described inner barrel (20), be installed with axostylus axostyle (40) in the axis hole (25); The both ends of the surface of described inside and outside cylindrical shell (20,10) are embedded with first limited aunular sheet (30) and second limited aunular sheet (35) of certain interval respectively.

2, ceramic bearing according to claim 1 is characterized in that: described inner barrel (20) is made by stupalith with outer cylinder body (10).

3, ceramic bearing according to claim 1 and 2 is characterized in that: the gap between the receiving hole (15) of described inner barrel (20) and outer cylinder body (10) inboard is 0.005mm～0.05mm.

4, ceramic bearing according to claim 3 is characterized in that: the receiving hole (15) of the inboard of described outer cylinder body (10) is shaped as circle.

5, ceramic bearing according to claim 3 is characterized in that: the receiving hole (15) of the inboard of described outer cylinder body (10) is shaped as prismatic.