CN212377112U

CN212377112U - Linear bearing

Info

Publication number: CN212377112U
Application number: CN202020746921.3U
Authority: CN
Inventors: 杜海峰
Original assignee: Lishui Dinglong Bearing Co ltd
Current assignee: Lishui Dinglong Bearing Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-01-19
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a linear bearing, relating to the bearing technical field; the lubricating oil lubricating device comprises a shell, a support positioned in the shell, a plurality of positioning holes positioned on the support, balls positioned in the positioning holes, a flanging positioned at one end of the shell and facing the inner side of the shell and used for supporting one end of the support, a fixed sleeve which is in threaded connection with the other end of the shell and used for being matched with the flanging so as to fix the support in the shell, and lubricating oil positioned between the support and the shell; the novel support is characterized in that an annular limiting bulge is arranged in the turned-over edge, a second limiting bulge is arranged on the fixing sleeve, limiting grooves are formed in two ends of the support, the limiting bulge is located in the corresponding limiting groove, and the second limiting bulge is located in the corresponding limiting groove. During assembly, the bracket is inserted, then the fixing sleeve is screwed on, and the assembly can be completed, so that the assembly is convenient.

Description

Linear bearing

Technical Field

The utility model belongs to the technical field of the bearing, in particular to linear bearing.

Background

The linear bearing is a linear motion system and is used for matching a linear stroke with a cylindrical shaft, but the existing linear bearing is troublesome to assemble.

Disclosure of Invention

The utility model aims at overcoming the troublesome shortcoming of prior art assembly, providing a linear bearing, the assembly of being convenient for.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a linear bearing comprises a shell, a support positioned in the shell, a plurality of positioning holes positioned on the support, balls positioned in the positioning holes, a flanging positioned at one end of the shell and facing the inner side of the shell and used for supporting one end of the support, a fixed sleeve which is in threaded connection with the other end of the shell and used for being matched with the flanging so as to fix the support in the shell, and lubricating oil positioned between the support and the shell; the novel support is characterized in that an annular limiting bulge is arranged in the turned-over edge, a second limiting bulge is arranged on the fixing sleeve, limiting grooves are formed in two ends of the support, the limiting bulge is located in the corresponding limiting groove, and the second limiting bulge is located in the corresponding limiting groove. During assembly, the bracket is inserted, then the fixing sleeve is screwed on, and the assembly can be completed, so that the assembly is convenient.

As preferred, spacing arch, turn-ups, shell enclose into a ring channel jointly, be equipped with in the spacing arch and be annular holding tank, be equipped with the transition holding tank with the holding tank intercommunication in the turn-ups, be equipped with rubber in the ring channel, rubber extends to the spacing protruding one end of being close to the support of second through transition holding tank, the support is close to turn-ups one end and is equipped with the second turn-ups that is used for the rubber in the extrusion ring channel. The sealing performance is improved.

Preferably, the second flange is adapted to the annular groove. So that the rubber flows toward the accommodation groove.

Preferably, a sealing ring is arranged between the bracket and the fixed sleeve. The sealing property is further improved.

Preferably, the fixed sleeve comprises a threaded sleeve and a supporting plate, the threaded sleeve is in threaded connection with the outer side of the end portion of the shell, the supporting plate is abutted against one end, far away from the flanging, of the shell, the threaded sleeve is located on the outer edge of the supporting plate, and the second limiting protrusion is fixedly connected to the supporting plate. The structure is simple.

Preferably, the fixing sleeve is of an integrally formed structure. Is convenient for production.

Preferably, the shell, the flanging and the second limiting bulge are of an integrally formed structure. Is convenient for production.

The utility model has the advantages that: the utility model provides a linear bearing, the assembly of being convenient for. The sealing performance is good.

Drawings

Fig. 1 is a schematic view of the present invention.

In the figure: the device comprises a shell 1, a support 2, a positioning hole 3, a ball 4, a flanging 5, a fixing sleeve 6, a limiting protrusion 7, a limiting groove 8, an annular groove 9, an accommodating groove 10, a transition accommodating groove 11, rubber 12, a second flanging 13, lubricating oil 14, a sealing ring 15, a threaded sleeve 16, a supporting plate 17 and a second limiting protrusion 18.

Detailed Description

The invention will be further explained in detail with reference to the drawings and the following detailed description:

example (b):

referring to fig. 1, a linear bearing comprises a housing 1, a support 2 located in the housing 1, a plurality of positioning holes 3 located on the support 2, balls 4 located in the positioning holes 3, a flange 5 located at one end of the housing 1 and facing the inside of the housing 1 and used for supporting one end of the support 2, a fixing sleeve 6 screwed at the other end of the housing 1 and used for being matched with the flange 5 so as to fix the support 2 in the housing 1, and lubricating oil 14 located between the support 2 and the housing 1; the novel support is characterized in that an annular limiting protrusion 7 is arranged in the turned-over edge 5, a second limiting protrusion 18 is arranged on the fixed sleeve 6, limiting grooves 8 are formed in two ends of the support 2, the limiting protrusion 7 is located in the corresponding limiting groove 8, and the second limiting protrusion 18 is located in the corresponding limiting groove 8. A sealing ring 15 is arranged between the bracket 2 and the fixed sleeve 6. The shell 1, the flanging 5 and the second limiting bulge 18 are of an integrally formed structure.

Spacing arch 7, turn-ups 5, shell 1 enclose into an annular groove 9 jointly, be equipped with in spacing arch 7 and be annular holding tank 10, be equipped with the transition holding tank 11 with holding tank 10 intercommunication in the turn-ups 5, be equipped with rubber 12 in the annular groove 9, rubber 12 extends to the spacing protruding 18 one end that is close to support 2 of second through transition holding tank 11, holding tank 10, support 2 is equipped with the second turn-ups 13 that is used for the interior rubber 12 of extrusion annular groove 9 near the one end of turn-ups 5. The second flanging 13 fits into the annular groove 9.

The fixed sleeve 6 comprises a threaded sleeve 16 and a supporting plate 17, wherein the threaded sleeve 16 is in threaded connection with the outer side of the end part of the shell 1, the supporting plate 17 is abutted against one end, far away from the flanging 5, of the shell 1, the threaded sleeve 16 is located on the outer edge of the supporting plate 17, and the second limiting protrusion 18 is fixedly connected to the supporting plate 17. The fixing sleeve 6 is of an integrated structure.

Principle of embodiment:

during the assembly, support 2 inserts in the shell 1, the spacing arch 18 embedding spacing inslot of second, then screw on fixed cover 6, the spacing arch 18 embedding spacing inslot of second on the fixed cover 6, second turn-ups 13 extrusion rubber 12, improve the leakproofness, prevent that lubricating oil 14 from the loss of support 2 tip, because rubber 12 is the fluid, the rubber 12 other end can spill over from holding groove 10, thereby make the tight laminating of rubber 12 in spacing inslot 8, further improve the leakproofness. On the other hand, under the effect of rubber 12, support 2 firmly laminates on sealing washer 15, has guaranteed that lubricating oil 14 can not run off from the one end that support 2 is close to sealing washer 15.

The utility model discloses convenient assembling, the leakproofness is good.

Claims

1. A linear bearing is characterized by comprising a shell, a support positioned in the shell, a plurality of positioning holes positioned on the support, balls positioned in the positioning holes, a flanging positioned at one end of the shell and facing the inner side of the shell and used for supporting one end of the support, a fixed sleeve which is in threaded connection with the other end of the shell and used for being matched with the flanging so as to fix the support in the shell, and lubricating oil positioned between the support and the shell;

the novel support is characterized in that an annular limiting bulge is arranged in the turned-over edge, a second limiting bulge is arranged on the fixing sleeve, limiting grooves are formed in two ends of the support, the limiting bulge is located in the corresponding limiting groove, and the second limiting bulge is located in the corresponding limiting groove.

2. The linear bearing of claim 1, wherein the limiting protrusion, the flange and the housing together define an annular groove, an annular receiving groove is formed in the limiting protrusion, a transition receiving groove communicated with the receiving groove is formed in the flange, rubber is arranged in the annular groove, the rubber extends to one end, close to the bracket, of the second limiting protrusion through the transition receiving groove and the receiving groove, and a second flange for extruding the rubber in the annular groove is formed at one end, close to the flange, of the bracket.

3. A linear bearing according to claim 2, wherein the second flange is adapted to the annular groove.

4. A linear bearing according to claim 1, wherein a seal is provided between the carrier and the sleeve.

5. The linear bearing of claim 1, wherein the retaining bushing comprises a threaded bushing threaded onto the outer side of the end of the housing, a support plate abutting against an end of the housing remote from the flange, the threaded bushing being located on an outer edge of the support plate, and the second retaining protrusion being fixedly attached to the support plate.

6. A linear bearing according to claim 5, wherein the sleeve is of one-piece construction.

7. The linear bearing of any one of claims 1 to 6, wherein the housing, the flange, and the second limiting protrusion are integrally formed.