CN203685852U

CN203685852U - Bearing

Info

Publication number: CN203685852U
Application number: CN201420044672.8U
Authority: CN
Inventors: 王能志
Original assignee: TAIZHOU DONGTAI BEARING Co Ltd
Current assignee: TAIZHOU DONGTAI BEARING Co Ltd
Priority date: 2014-01-24
Filing date: 2014-01-24
Publication date: 2014-07-02
Anticipated expiration: 2024-01-24

Abstract

The utility model discloses a bearing. The bearing comprises rolling parts and a fixing part, wherein each rolling part comprises an outer ring, rolling bodies and rolling inner rings; the fixing part comprises a fixing inner ring; the fixing inner ring is sleeved on a rotating shaft; a plurality of columns of independent rolling grooves, a plurality of columns of independent rolling bodies and a plurality of rolling inner rings are arranged on the outer ring; the rolling grooves, the rolling bodies and the rolling inner rings form the rolling parts independent of each other; a ring-shaped slider moving axially is arranged between the fixing inner ring and the rolling inner rings and is circumferentially connected with the rolling inner rings and the fixing inner ring; the slider is connected with a driving mechanism for driving the slider to move axially. Different rolling parts can be switched to allow each rolling part to rest intermittently, thus achieving the aims of prolonging the service life and protecting the bearing.

Description

Bearing

Technical field

The utility model relates to a kind of component of machine, and specifically, it relates to a kind of bearing.

Background technique

Bearing is the vitals in machinery; have the place of running shaft will have bearing, in the long-time high speed operation process of machine, the rolled portion of bearing can be generated heat; wearing and tearing; easily cause bearing fatigue until cannot use, people can protect bearing by heat radiation at present, but under long working condition; this method is cured the symptoms, not the disease; after work after a while, allowing bearing stop and having a rest is best protection way, but machine cannot be worked when rest.

Model utility content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of bearing, can switch different rolled portion, allows each rolled portion intermittence have a rest, increase the service life thereby reach, the object of protection bearing.

For achieving the above object, the utility model provides following technological scheme: a kind of bearing, comprise rolled portion and fixing part, described rolled portion comprises outer ring, rolling element, rolling inner ring, described fixing part comprises fixing inner ring, fixing inner ring is set on running shaft, described outer ring is provided with independently rolling groove of some row, independently rolling element of some row, several rolling inner rings, described rolling groove, rolling element, rolling inner ring forms separate rolled portion, between described fixing inner ring and rolling inner ring, be provided with ring slider and slide block and rolling inner ring and all circumferentially interlocks of fixing inner ring of axial motion, described slide block is connected with and drives the axially movable driving mechanism of slide block.

By adopting technique scheme, separate rolled portion is set, by axially movable drive unit in same outer ring; driving slide block moves axially; slide block is linked from different rolling elements, reach the object of switching rolled portion, when one of them rolled portion works long hours; after excess Temperature; switch different rolling elements by drive unit, allow residue rolled portion have a rest, heat radiation; extend thus the working life of bearing, protection bearing.

The utility model is further set to: described driving mechanism comprises spiral cover, screw-thread fit between outer ring and spiral cover, and described spiral cover is provided with T shape bar, and slide block is provided with the T-slot coordinating with T shape bar, between T shape bar and T-slot, is provided with gap.

By adopting technique scheme, by the screw thread of spiral cover and outer ring, drive spiral cover to move axially, due to screw drive, even if slide block moving resistance is larger, also can promote comparatively easily the axial motion of slide block, T shape bar and T shape bar, can realize axial pushing away or drawing, facilitate slide block between rolled portion, switching arbitrarily, between T shape bar and T-slot, have gap, after slide block moves into place, rotation spiral cover makes to be separated from each other between T shape bar and T-slot, avoids friction.

The utility model is further set to: the face that described rolling inner ring coordinates with slide block is provided with compression tapering.

By adopting technique scheme, after slide block moves into place by drive unit, by compressing tapering, make slide block and fixing inner ring, rolling inner ring close contact, avoid between slide block and fixing inner ring, relative movement between rolling inner ring.

The utility model is further set to: described fixing inner ring is provided with guide rail, and described slide block is provided with guide groove.

By adopting technique scheme, avoid, between slide block and fixing inner ring, circumferential relative movement occurs.

The utility model is further set to: described rolling inner ring is provided with raised line, and described slide block is provided with the groove matching with raised line.

By adopting technique scheme, avoid, between slide block and rolling inner ring, circumferential relative movement occurs.

The utility model is further set to: described rolled portion is two.

By adopting technique scheme, two rolled portion discontinuous operations, basic practical requirement, and two structures are comparatively simple, small volume.

The utility model is further set to: described spiral cover is provided with rotating hole.

By adopting technique scheme, the convenient spiral cover that rotates, facilitates the switching of rolled portion.

Accompanying drawing explanation

Fig. 1 is the utility model bearing embodiment's sectional view;

Fig. 2 is the structural representation of the utility model bearing implementation column.

Reference character: 1, outer ring; 2, rolling element; 3, rolling inner ring; 4, slide block; 41, T-slot; 42, guide groove; 5, spiral cover; 51, T shape bar; 52, rotating hole; 6, fixing inner ring; 61, guide rail; 7, running shaft.

Embodiment

Referring to figs. 1 through Fig. 2, the utility model bearing embodiment is described further.

A kind of bearing, comprise rolled portion and fixing part, described rolled portion comprises outer ring 1, rolling element 2, rolling inner ring 3, described fixing part comprises fixing inner ring 6, fixing inner ring 6 is set on running shaft 7, described outer ring 1 is provided with independently rolling groove of some row, some row are rolling element 2 independently, several rolling inner rings 3, described rolling groove, rolling element 2, rolling inner ring 3 forms separate rolled portion, between described fixing inner ring 6 and rolling inner ring 3, be provided with ring slider 4 and the slide block 4 and rolling inner ring 3 and all circumferentially interlocks of fixing inner ring 6 of axial motion, described slide block 4 is connected with and drives the axially movable driving mechanism of slide block 4.

By adopting technique scheme, same outer ring 1 is interior arranges separate rolled portion, by axially movable drive unit; drive slide block 4 to move axially; slide block 4 is linked from different rolling elements 2, reach the object of switching rolled portion, when one of them rolled portion works long hours; after excess Temperature; switch different rolling elements 2 by drive unit, allow residue rolled portion have a rest, heat radiation; extend thus the working life of bearing, protection bearing.

Described driving mechanism comprises spiral cover 5, screw-thread fit between outer ring 1 and spiral cover 5, and described spiral cover 5 is provided with T shape bar 51, and slide block 4 is provided with the T-slot 41 coordinating with T shape bar 51, between T shape bar 51 and T-slot 41, is provided with gap.

By adopting technique scheme, screw thread by spiral cover 5 with outer ring 1, drives spiral cover 5 to move axially, due to screw drive, even if slide block 4 moving resistances are larger, also can promote comparatively easily the axial motion of slide block 4, T shape bar 51 and T shape bar 51, can realize axial pushing away or drawing, facilitate slide block 4 between rolled portion, switching arbitrarily, between T shape bar 51 and T-slot 41, have gap, after slide block 4 moves into place, rotation spiral cover 5 makes to be separated from each other between T shape bar 51 and T-slot 41, avoids friction.

The face that described rolling inner ring 3 coordinates with slide block 4 is provided with compression tapering.

By adopting technique scheme, after slide block 4 moves into place by drive unit, by compressing tapering, make slide block 4 and fixing inner ring 6, rolling inner ring 3 close contacts, avoid between slide block 4 and fixing inner ring 6, relative movement between rolling inner ring 3.

Described fixing inner ring 6 is provided with guide rail 61, and described slide block 4 is provided with guide groove 42.

By adopting technique scheme, avoid, between slide block 4 and fixing inner ring 6, circumferential relative movement occurs.

Described rolling inner ring 3 is provided with raised line, and described slide block 4 is provided with the groove matching with raised line.

By adopting technique scheme, avoid, between slide block 4 and rolling inner ring 3, circumferential relative movement occurs.

Described rolled portion is two.

Described spiral cover 5 is provided with rotating hole 52.

By adopting technique scheme, the convenient spiral cover 5 that rotates, facilitates the switching of rolled portion.

Claims

1. a bearing, comprise rolled portion and fixing part, described rolled portion comprises outer ring, rolling element, rolling inner ring, described fixing part comprises fixing inner ring, fixing inner ring is set on running shaft, it is characterized in that: described outer ring is provided with independently rolling groove of some row, independently rolling element of some row, several rolling inner rings, described rolling groove, rolling element, rolling inner ring forms separate rolled portion, between described fixing inner ring and rolling inner ring, be provided with ring slider and slide block and rolling inner ring and all circumferentially interlocks of fixing inner ring of axial motion, described slide block is connected with and drives the axially movable driving mechanism of slide block.

2. bearing according to claim 1, is characterized in that: described driving mechanism comprises spiral cover, screw-thread fit between outer ring and spiral cover, and described spiral cover is provided with T shape bar, and slide block is provided with the T-slot coordinating with T shape bar, between T shape bar and T-slot, is provided with gap.

3. bearing according to claim 2, is characterized in that: the face that described rolling inner ring coordinates with slide block is provided with compression tapering.

4. bearing according to claim 3, is characterized in that: described fixing inner ring is provided with guide rail, and described slide block is provided with guide groove.

5. bearing according to claim 4, is characterized in that: described rolling inner ring is provided with raised line, and described slide block is provided with the groove matching with raised line.

6. bearing according to claim 5, is characterized in that: described rolled portion is two.

7. bearing according to claim 6, is characterized in that: described spiral cover is provided with rotating hole.