CN201277260Y

CN201277260Y - Radial spherical plain bearing

Info

Publication number: CN201277260Y
Application number: CNU2008200345990U
Authority: CN
Inventors: 徐金峰
Original assignee: JIANGSU CCVI BEARING CO Ltd
Current assignee: JIANGSU CCVI BEARING CO Ltd
Priority date: 2008-04-28
Filing date: 2008-04-28
Publication date: 2009-07-22
Anticipated expiration: 2018-04-28

Abstract

The utility model provides a radial spherical plain bearing, which comprises an inner ring, an outer ring, self-lubricating materials and a sealing device, wherein the sealing device is arranged between the outer ring and the inner ring, the self-lubricating materials are placed on the contact surfaces of the outer ring and the inner ring, and the sealing device is respectively arranged on the axial two ends of the outer ring and the radial two ends of the inner ring, and the outer peripheries of the axial two ends of the inner ring are respectively provided with a sealing groove. The radial spherical plain bearing reinforces the sealing effect of a bearing, improves the sealing property of a bearing, and prolongs the service span.

Description

A kind of plain radial bearing

Technical field

The utility model relates to a kind of plain radial bearing, the used plain radial bearing of particularly a kind of train bogie.

Background technique

In recent years, because bullet train--putting into effect of rail motor set, train speed improves a lot, plain radial bearing that existing bullet train uses, comprise the outer ring, inner ring and seal ring, wherein, described seal ring is between outer ring and inner ring, outer ring and inner ring surface of contact are provided with one deck self lubricating material, the plain radial bearing of this structure is in the process of train running, owing to be gapped between the joint of track for a train, train wheel can produce up-down vibration through the rail joint place, very frequent oscillating action can be linked to each other the bearing at position to torsion bar with connecting rod by connecting rod on.Because bogie is to be contained in the train bottom, be separated by with the Rest Room and be not far, and a lot of foreign material are arranged also between the rail of train, this operating mode is just very high to the seal ring requirement of bearing, if there is impurity to enter bearing inside, the lubricating layer of the inside will soon damage, bearing will move by steel to steel, will soon lose efficacy, therefore, sealing configuration and self lubricating material that existing plain radial bearing uses can not satisfy its working condition requirement.

The model utility content

Technical problem to be solved in the utility model provides a kind of good airproof performance, the plain radial bearing of long service life.

In order to solve the problems of the technologies described above, a kind of plain radial bearing of the utility model, comprise inner ring, outer ring, self lubricating material and seal arrangement, described seal arrangement is between described outer ring and described inner ring, described self lubricating material is positioned on described outer ring and the described inner ring surface of contact, wherein, described seal arrangement is separately positioned on the radially two ends of the axial two ends of outer ring and inner ring, and the axial two ends outer circumferential face of described inner ring respectively is provided with a seal groove.

Above-mentioned a kind of plain radial bearing, wherein, described seal arrangement comprises a skeleton, spring retainer, the cross section of described skeleton is horizontal hook-type, the long limit of described hook-type outwards is bent into the plane, and described plane leans respectively on the axial end of outer ring, and the minor face of described hook-type is bent into the flute profile boss, described boss is separately positioned in the seal groove of inner ring, and described spring retainer is stuck in the flute profile boss of skeleton.

Above-mentioned a kind of plain radial bearing, wherein, described outer ring and described inner ring surface of contact are provided with a self lubricating material, and non-wetting of described lubriation material is provided with a bonding layer.

Adopt the plain radial bearing of said structure, owing to be provided with seal groove in the inner ring periphery, when the flute profile boss of seal arrangement cooperated with the seal groove of inner ring, surface of contact was curved surface, had increased the area of contact of seal arrangement and bearing inner race, can prevent entering of foreign matters such as dust so effectively, thereby strengthened the sealing effect of bearing, improved the sealing of bearing, prolonged its working life, adopted skeletal structure in the seal arrangement simultaneously, thereby also improved the working life of seal arrangement.

Description of drawings

Fig. 1 is the structural representation of plain radial bearing in the prior art

Fig. 2 is a structural representation of the present utility model

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

In order to solve the problems of the technologies described above, a kind of plain radial bearing of the utility model, comprise outer ring 1, inner ring 2 and seal arrangement 3, wherein, described seal arrangement 3 is between described outer ring 1 and described inner ring 2, the axial two ends outer circumferential face of described inner ring 2 is respectively equipped with a seal groove 4, described seal arrangement 3 comprises a skeleton 31, spring retainer 33, the cross section of described skeleton 31 is horizontal hook-type, the long limit of described hook-type outwards is bent into the plane, described plane leans respectively on the axial end of outer ring 1, the minor face of described hook-type is bent into the flute profile boss, described boss is separately positioned in the seal groove 4 of inner ring 2, described spring retainer 33 is stuck in the flute profile boss of skeleton 31, be close to mutually with outer ring 1 by skeleton 31 like this, spring retainer 33 is located in the flute profile boss, the flute profile boss of seal arrangement 3 is locked in the seal groove 4 of inner ring 2, make seal groove 4 surface and seal arrangement 3 surface of contact contact tightr, thereby improve the sealing of bearing, prevent that dust and impurity from entering bearing working face, avoid having improved the working life of bearing greatly because of foreign matter enters the wearing and tearing that cause bearing.

Outer ring 1 is provided with a self lubricating material 6 with the surface of contact of inner ring 2, the non-lubricated face of described lubriation material is provided with a bonding layer, described self lubricating material 6 can be lubriation material commonly used in the prior art, also can be outside original PTFE composition, also to have added other by the high molecular polymer that impacts and other affixs, make this self lubricating material 6 outside original self-lubricating function, can also bear high-frequency impulsive load; Make bearing more durable; Self lubricating material 6 is handled through special process, the bonding layer that non-lubricated face is provided with, and the new glue of the coupling that can adopt, but can improve the adhesion strength shock resistance, and can bear certain torsion.

Adopt the plain radial bearing of said structure, owing to be provided with seal groove in the inner ring periphery, when seal arrangement cooperates with inner ring, surface of contact is established and can be curved surface, increase the area of contact of seal arrangement, can prevent entering of foreign matters such as dust so effectively, thereby strengthened the sealing effect of bearing, improve the sealing of bearing, prolong its working life.

The utility model is not limited to above-mentioned mode of execution, adopts equivalence to replace resulting technological scheme and also drops in the protection domain of the present utility model.

Claims

1, a kind of plain radial bearing, comprise outer ring (1), inner ring (2), self lubricating material (5) and seal arrangement (3), described seal arrangement (3) is positioned between described outer ring (1) and the described inner ring (2), described self lubricating material (5) is positioned on described outer ring (1) and described inner ring (2) surface of contact, it is characterized in that, described seal arrangement (3) is separately positioned on the radially two ends of the axial two ends of outer ring (1) and inner ring (2), and the axial two ends outer circumferential face of described inner ring (2) respectively is provided with a seal groove (4).

2, a kind of according to claim 1 plain radial bearing, it is characterized in that, described seal arrangement (3) comprises a skeleton (31), spring retainer (33), the cross section of described skeleton (31) is horizontal hook-type, the long limit of described hook-type outwards is bent into the plane, described plane leans respectively on the axial end of outer ring (1), the minor face of described hook-type is bent into the flute profile boss, described flute profile boss is separately positioned in the seal groove (4) of inner ring (2), and described spring retainer (33) is stuck in the flute profile boss of skeleton.

3, a kind of according to claim 1 plain radial bearing is characterized in that, non-wetting of described self lubricating material (5) is provided with a bonding layer.