CN2338537Y

CN2338537Y - Dust-proof bearing base

Info

Publication number: CN2338537Y
Application number: CN 98227710
Authority: CN
Inventors: 郑书先
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-25
Filing date: 1998-08-25
Publication date: 1999-09-15
Anticipated expiration: 2008-08-25

Abstract

The utility model discloses a dust prevention bearing seat, which comprises a bearing seat shell and a bearing seat cover, wherein, an inner chamber formed by the bearing seat shell is provided with a bearing and a rotating shaft, and the bearing is supported on the rotating shaft. The utility model is characterized in that two hollow bearing seat covers are tightly fixed at ports at both sides of the inner chamber surrounded by the bearing seat shell, and a curved path inner sealing ring is tightly and fixedly arranged in a cavity of the bearing seat cover. The curved path inner sealing ring is sheathed and embedded with a curved path outer throwing disc of a grinding disc fixed on the rotating shaft to form an inner and outer dual sealing. Consequently, dust can be prevented from entering the inner chamber composed of the bearing seat shell, and the service life of the bearing is increased.

Description

The shield bearing seat

The utility model relates to a kind of bearing support, relates in particular to a kind of shield bearing seat.

The existing bearing seat, poorly sealed by its both sides port of inner chamber that the bearing support shell constitutes, easily cause dust to enter in the bearing that inner chamber is equipped with, and damage bearing; And the bearing in the existing bearing seat adopts butter lubricated, when the rotating shaft high speed rotating, can influence bearing working life; When using oil lubricating, can produce oil leakage phenomenon.

The purpose of this utility model is to provide a kind of dust that can prevent to enter the shield bearing seat in the inner chamber that the bearing support shell constitutes.

The purpose of this utility model is to realize like this, described shield bearing seat, comprise bearing support shell and pedestal cap, the inner chamber that the bearing support shell surrounds is put bearing and rotating shaft, bearing is supported in the rotating shaft, its structural feature is fastened on the both sides port of the inner chamber that the bearing support shell surrounds for the pedestal cap that adopts two hollows, be fastened with bent road inner seal ring in the cavity of the hollow of pedestal cap, bent road inner seal ring gets rid of dish outward and is nested and forms the inside and outside dual sealing with the outer mill Qu Lu of pedestal cap port that is positioned at that is fixed in the rotating shaft.

The purpose of this utility model also can be achieved through the following technical solutions, described shield bearing seat, its characteristics are that being provided with a ring-type oil baffle in the cavity of each pedestal cap hollow is separated into former and later two cavitys to the cavity of pedestal cap hollow, and oil baffle is provided with spill port.Described shield bearing seat, its characteristics are that mill Qu Lu gets rid of dish outward and forms the very little and contactless mill face in gap with the outer capping opposite position of the port of hollow bearing flap.Described shield bearing seat, its characteristics are to be fixed with the bowl-shape mill disc of opening towards the bearing direction, bowl-shape mill disc and the little and contactless mill face in formation gap, the inner seal ring back side, bent road in the rotating shaft at before the being arranged in pedestal cap cavity next-door neighbour inner seal ring back side, bent road.

The utility model forms the inside and outside dual sealing because the bent road inner seal ring that adopts the preceding cavity that gets rid of dish and hollow bearing flap outside the mill Qu Lu that is fixed in the rotating shaft to be fixed with at the both sides port of the inner chamber that the bearing support shell constitutes is nested, can prevent that dust from entering in the inner chamber of bearing support shell formation, and mill Qu Lu gets rid of outward between the outer capping of the outside card of dish and hollow bearing flap and forms the mill face, enter the dust in the formed mill face between the outer capping that mill Qu Lu gets rid of the outside card of dish and hollow bearing flap outward thereby make, owing to the high speed rotating of rotating shaft is ground with the mill face, reach the purpose of protection bearing; Again owing in the rotating shaft that is positioned at the dish back side, introversion road, be fixed with the bowl-shape mill disc of opening towards the bearing direction, thereby can get rid of the machine oil in the cavity that advances the formation of people's pedestal cap in the inner chamber that enters bearing support shell formation, use for bearing, avoid machine oil to spill, guarantee the bearing proper functioning, thereby improve bearing working life.

Below in conjunction with drawings and Examples the utility model is elaborated:

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

Fig. 2 cuts open structural representation for A-A of the present utility model.

As depicted in figs. 1 and 2, bearing support shell 9 described in the utility model can adopt the bearing support shell of common shape, its inner chamber that surrounds is put bearing 6, bearing 6 is supported in the rotating shaft 7, the bearing support shell is provided with tank filler sleeve and leads directly to into inner chamber, use for bearing, guarantee the bearing proper functioning, adopt the pedestal cap 4 of two hollows to be fastened on to make on the both sides port of bearing support shell the both sides port of the inner chamber that the bearing support shell surrounds to reach preliminary sealing by bolt 8, and in the pedestal cap cavity of each hollow, be provided with a ring-type oil baffle 10 the pedestal cap cavity is separated into former and later two cavitys, oil baffle 10 is provided with spill port 11, adopt bent road inner seal ring 2 to be anchored in the pedestal cap 4 preceding cavitys then, it is very little that bent road inner seal ring 2 in the cavitys and rotating shaft and the gap between them are passed before ring-type oil baffle 10 and the pedestal cap 4 in the rotating shaft 7 that is used for block bearing, bent road inner seal ring 2 gets rid of dish 1 outward and is nested and forms the inside and outside dual sealing with the outer mill Qu Lu of pedestal cap port that is positioned at that is fixed in the rotating shaft 7, can prevent that dust from entering in the preceding cavity of pedestal cap, and the outer capping of the port of hollow bearing flap 4 gets rid of dish 1 opposite position formation mill face 12 outward with mill Qu Lu and the gap between them is very little contactless, thereby make and enter mill Qu Lu and get rid of the interior dust of formed mill face between dish 1 and the outer capping of the port of hollow bearing flap 4 outward, owing to the high speed rotating of rotating shaft is ground with the mill face, reach the purpose of protection bearing; Before being arranged in pedestal cap 4, be fixed with the bowl-shape mill disc 3 of opening in the rotating shaft 7 at cavity next-door neighbour inner seal ring 2 back sides, bent road towards the bearing direction, bowl-shape mill disc 3 also can form the little mill face in gap with inner seal ring 2 back sides, bent road, make the micro-machine oil that enters in the mill face and because the high speed rotating of rotating shaft 7 and being entered before the pedestal cap 4 in the cavitys by mill, like this can enter the gap between ring-type oil baffle 10 and rotating shaft 7 the micro-machine oil in the cavitys before the pedestal cap 4 by spill port 11 get rid of enter enter again in the pedestal cap 4 back cavitys with pedestal cap after in the inner chamber that constitutes of the bearing support shell 9 that joins of cavity, use for bearing, avoid machine oil to spill, guarantee the bearing proper functioning, thereby improve bearing working life.In like manner on the opposite side port of bearing support shell 9, be fixed with and get rid of dish 1 and bowl-shape mill disc 3 outside the pedestal cap 4 with spline structure, bent road inner seal ring 2 and the mill Qu Lu.

Claims

1, a kind of shield bearing seat, comprise bearing support shell (9) and pedestal cap (4), the inner chamber that the bearing support shell surrounds is put bearing (6) and rotating shaft, bearing (6) is supported in the rotating shaft (7), it is characterized in that adopting the pedestal cap (4) of two hollows to be fastened on the both sides port of the inner chamber that the bearing support shell surrounds, be fastened with bent road inner seal ring (2) in the cavity of the hollow of pedestal cap (4), bent road inner seal ring (2) gets rid of dish (1) outward and is nested and forms inside and outside dual and seal with the outer mill Qu Lu of pedestal cap port that is positioned at that is fixed in the rotating shaft (7).

2, shield bearing seat according to claim 1, it is characterized in that being provided with a ring-type oil baffle (10) in the cavity of each pedestal cap (4) hollow is separated into former and later two cavitys to the cavity of pedestal cap hollow, oil baffle (10) is provided with spill port (11).

3, shield bearing seat according to claim 1 is characterized in that mill Qu Lu gets rid of dish (1) outward and forms the very little and contactless mill face (12) in gap with the outer capping opposite position of the port of hollow bearing flap (4).

4, shield bearing seat according to claim 2, it is characterized in that being fixed with the bowl-shape mill disc (3) of opening towards the bearing direction in the rotating shaft (7) that is arranged in the preceding cavity next-door neighbour of pedestal cap (4) bent road inner seal ring (2) back side, bowl-shape mill disc (3) forms the little and contactless mill face in gap with bent road inner seal ring (2) back side.