CN201184371Y

CN201184371Y - Water-proof bearing with seat

Info

Publication number: CN201184371Y
Application number: CNU2008200342047U
Authority: CN
Inventors: 陈磊明; 顾红兵; 黄庆华; 庄乐鸣
Original assignee: WUXI GENERAL MACHINERY WORKS CO Ltd
Current assignee: WUXI GENERAL MACHINERY WORKS CO Ltd
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2009-01-21
Anticipated expiration: 2018-04-17

Abstract

The utility model relates to a waterproof bearing with a pedestal, which is mainly used for carrying out axial transmission and radial location of a transmission shaft in a moist environment. The waterproof bearing comprises an outer end cover arranged at the outer end of a tubular bearing pedestal for blocking the opening thereof, an inner end cover arranged at the inner end of the bearing pedestal for blocking the opening thereof, an insertion hole formed on the inner end cover, a tubular shaft liner inserted into the insertion hole, a bearing arranged inside the bearing pedestal and in clearance fit with the inner wall of the bearing pedestal, and an inner retainer ring and an outer retainer ring respectively arranged on the inner side and the outer side of the bearing for restricting the bearing in the internal cavity of the bearing pedestal, wherein one end of the shaft liner is arranged inside the inner retainer ring, and the other end protrudes out of the inner end cover; and a sealing device is arranged between the outer wall of the shaft liner and the inner wall of the inner retainer ring, and has convenient installation and easy replacement of parts that are likely to be damaged. The use of the shaft liner can maximally reduce the abrasion of the shaft head, and the application of heating installation and a frame oil seal device can effectively prevent water infiltration. The waterproof bearing has excellent performance, reliable and safe operation and long service life.

Description

The waterproof type bearing of usheing to seat

Technical field

The utility model relates to a kind of being applicable to and is mainly used in the device that transmission shaft is carried out axial transmission and radial location under the wet environment, especially a kind of waterproof type bearing of usheing to seat.

Background technique

Rolling bearing units extensively apply on the machinery of industries such as machinery, metallurgy, light industry, weaving, papermaking, especially require more strict in the occasion of belt squeeze filter equipment and some humid environments of papermaking equipment.The general at present rolling bearing units that use as shown in Figure 1, rolling bearing units are installed on the two ends of roller, the 1st, the transmission spindle nose, rolling bearing 2 is installed in the bearing support of being made up of bearing support loam cake 3 that is provided with depression and the bearing support pedestal 4 that is provided with depression, relies on 6 pairs of whole bearing supports sealings of dust-proof seal ring 5 and bearing support cover plate.A whole set of bearing means sealing effect difference and easily damaged parts is difficult for changing, especially the operation bearing is easily because of water inlet damages under the band water environment, and the long-term contact friction of dust-proof seal ring is in axle head, spindle nose is easy to wear.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of easy for installation and easily damaged parts changed, reduces the wearing and tearing of spindle nose easily, effectively stops the infiltration of water, waterproof type safe and reliable, long service life the bearing of usheing to seat.

The technological scheme that provides according to the utility model, the outer end cap of its opening of shutoff is set in the bearing support outer end of tubulose, the inner end cap of its opening of shutoff is set at the bearing support inner end, offer patchhole on the inner end cap, in patchhole, be plugged with the axle sleeve of tubulose, be provided with bearing with its inwall Spielpassung in the inside of bearing support, inside and outside bearing both sides be respectively equipped with inner shield ring with outside back-up ring, inner shield ring and outer back-up ring constrain in bearing the internal cavities of bearing support, described axle sleeve one end is arranged on inner shield ring inside, the axle sleeve the other end stretches out inner end cap, is provided with seal arrangement between axle sleeve outer wall and inner shield ring inwall.

Described seal arrangement is the outside framework oil seal device that the inner contacts with the axle sleeve outer wall, the outer end contacts with the inner shield ring inwall.It is that body, the inner are the leg of fork and the device of the formation of the connecting sheet one between them that described outside framework oil seal device is the outer end.Stretching out the groove that is provided with ring-type on the axle sleeve outer wall of inner end cap.On outer end cap, be provided with lubricating cup.

The utility model is easy for installation and easily damaged parts changed easily, at utmost reduces the wearing and tearing of spindle nose by the utilization of axle sleeve, and the infiltration that effectively stops water with the utilization of outside framework oil seal device is installed in heating, and its usability is superior, safe and reliable, long service life.

Description of drawings

Fig. 1 is existing rolling bearing units structural representation.

Fig. 2 is an overall structure schematic representation of the present utility model.

Embodiment

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

As shown in the figure: the outer end cap 15 that its opening of shutoff is set in bearing support 7 outer ends of tubulose, the inner end cap 11 of its opening of shutoff is set at bearing support 7 inner ends, offer patchhole 20 on the inner end cap 11, in patchhole 20, be plugged with the axle sleeve 8 of tubulose, be provided with bearing 12 with its inwall Spielpassung in the inside of bearing support 7, during use in the mounting hole of bearing 12 grafting spindle nose 24, the inside and outside both sides of bearing 12 be respectively equipped with inner shield ring 10 with outside back-up ring 13, inner shield ring 10 and outer back-up ring 13 constrain in bearing 12 internal cavities of bearing support 7, described axle sleeve 17 1 ends are arranged on inner shield ring 10 inside, axle sleeve 8 the other ends stretch out inner end cap 11, are provided with seal arrangement between axle sleeve 17 outer walls and inner shield ring 10 inwalls.

Described seal arrangement is the outside framework oil seal device 9 that the inner contacts with axle sleeve 8 outer walls, the outer end contacts with inner shield ring 10 inwalls.It is that body 21, the inner are the leg 22 of fork and the device of 23 one of the connecting sheet between them formation that described outside framework oil seal device 9 is the outer end.

On axle sleeve 17 outer walls that stretch out inner end cap 11, be provided with the groove 17 of ring-type.On outer end cap 15, be provided with lubricating cup 14.

The utility model mainly comprises integrated shaft bearing 7, axle sleeve 8, J type outside framework oil seal device 9, inner shield ring 10, inner end cap 11, rolling bearing 12, outer back-up ring 13, lubricating cup 14, outer end cap 15, Cock screw 16, described integrated shaft bearing 7 centers are provided with smooth cylndrical surface 18, countersunk head tapped hole 19 is each side arranged, inner end cap 11 and outer end cap 15 are fixed in the bearing support both sides by Cock screw 16, rolling bearing 12 is installed on integrated shaft bearing 7 inside, axially be positioned between the interior outer end cap by inner shield ring 10 and outer back-up ring 13, inner end cap 11 centers are provided with patchhole 20, spindle nose stretches into bearing support by circular hole, axle sleeve 8 is installed on the spindle nose, one end is near rolling bearing 12 location, seals by J type outside framework oil seal 9 back-to-back between axle sleeve 8 and inner shield ring 10.

Circle size and spindle nose adopt interference fit in the axle sleeve 8, are anchored on the spindle nose by heating, and axle sleeve 8 peripheries one end machined grooves 17 plays resistance effect.Outer end cap 15 centers are provided with tapped hole so that lubricating cup 14 is installed.

Claims

1, a kind of waterproof type bearing of usheing to seat, comprise that bearing support (7) outer end that is arranged on tubulose is used for the outer end cap (15) of its opening of shutoff, it is characterized in that: the inner end cap (11) that its opening of shutoff is set at the inner end of bearing support (7), on inner end cap (11), offer patchhole (20), in patchhole (20), be plugged with the axle sleeve (17) of tubulose, be provided with bearing (12) with its inwall Spielpassung in the inside of bearing support (7), the inside and outside both sides of bearing (12) be respectively equipped with inner shield ring (10) with outside back-up ring (13), inner shield ring (10) and outer back-up ring (13) constrain in bearing (12) internal cavities of bearing support (7), one end of described axle sleeve (17) is arranged on inner shield ring (10) inside, the other end of axle sleeve (17) stretches out inner end cap (11), is provided with seal arrangement between the inwall of axle sleeve (17) outer wall and inner shield ring (10).

2, the waterproof type as claimed in claim 1 bearing of usheing to seat is characterized in that: described seal arrangement is the outside framework oil seal device (9) that innerly contacts with axle sleeve (17) outer wall, the outer end contacts with inner shield ring (10) inwall.

3, the waterproof type as claimed in claim 2 bearing of usheing to seat is characterized in that: it is body (21), the inner device that constitutes for the leg (22) and the connecting sheet between them (23) one of fork that described outside framework oil seal device (9) is the outer end.

4, the waterproof type as claimed in claim 1 bearing of usheing to seat is characterized in that: the groove (17) that is provided with ring-type on the axle sleeve that stretches out inner end cap (11) (17) outer wall.

5, the waterproof type as claimed in claim 1 bearing of usheing to seat is characterized in that: be provided with lubricating cup (14) on outer end cap (15).