CN213088527U - Oil leakage prevention linear bearing - Google Patents
Oil leakage prevention linear bearing Download PDFInfo
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- CN213088527U CN213088527U CN202021317428.6U CN202021317428U CN213088527U CN 213088527 U CN213088527 U CN 213088527U CN 202021317428 U CN202021317428 U CN 202021317428U CN 213088527 U CN213088527 U CN 213088527U
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- sealing ring
- linear bearing
- sealing
- middle cylinder
- shell
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Abstract
The utility model discloses an oil leakage prevention linear bearing, relating to the bearing technical field; the lubricating oil leakage prevention device comprises a shell, a plurality of balls positioned in the shell and a retainer used for supporting the balls, wherein the shell comprises a middle cylinder part and sealing mechanisms positioned at two ends of the middle cylinder part and used for preventing lubricating oil from leaking out of the end part of the shell; the retainer is positioned between the sealing mechanisms; the sealing mechanism comprises an annular bracket, an annular groove positioned on the inner side of the bracket, a sealing ring positioned in the annular groove, and an extrusion plate used for extruding the sealing ring so as to reduce the radius of the inner edge of the sealing ring and attach the inner edge of the sealing ring to an optical axis; the extrusion plate is annular and is positioned in the annular groove. The size of sealing washer internal diameter can be controlled through the extrusion of stripper plate, and when gapped between sealing washer and the optical axis, stripper plate extrusion sealing washer can be so that sealing washer and optical axis laminating are sealed.
Description
Technical Field
The utility model belongs to the technical field of the bearing, in particular to oil leakage prevention type linear bearing.
Background
Linear bearings are one of the common bearings.
The existing linear bearing is provided with lubricating oil, but the sealing mechanisms at two ends of the shell of the existing linear bearing are easy to generate gaps with the optical axis after a long time, so that the lubricating oil in the shell leaks out from the end part of the shell.
Disclosure of Invention
The utility model aims at overcoming the shortcoming of the easy oil leak of prior art, providing an oil leak protection type linear bearing.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an oil leakage prevention type linear bearing comprises a shell, a plurality of balls positioned in the shell and a retainer for supporting the balls, wherein the shell comprises a middle cylinder part and sealing mechanisms positioned at two ends of the middle cylinder part and used for preventing lubricating oil from leaking out of the end part of the shell; the retainer is positioned between the sealing mechanisms; the sealing mechanism comprises an annular bracket, an annular groove positioned on the inner side of the bracket, a sealing ring positioned in the annular groove, and an extrusion plate used for extruding the sealing ring so as to reduce the radius of the inner edge of the sealing ring and attach the inner edge of the sealing ring to an optical axis; the extrusion plate is annular and is positioned in the annular groove. The size of sealing washer internal diameter can be controlled through the extrusion of stripper plate, and when gapped between sealing washer and the optical axis, stripper plate extrusion sealing washer can be so that sealing washer and optical axis laminating are sealed.
Preferably, the extrusion plate is located on one side of the sealing ring away from the middle cylinder part, and the support is in threaded connection with a plurality of bolts for applying force to the extrusion plate towards one side of the sealing ring.
Preferably, the bracket comprises a base detachably connected with the end part of the middle cylinder part and a cover plate detachably connected with one side of the base far away from the middle cylinder part; the base and the cover plate are surrounded to form the annular groove, and the bolt is in threaded connection with the cover plate.
Preferably, the base and the cover plate are penetrated by fixing bolts, and the fixing bolts are in threaded connection with the middle barrel part.
Preferably, the fixing bolts corresponding to each bracket are arranged in an annular array centered on the axis of the optical axis.
Preferably, the bolts corresponding to each bracket are arranged in an annular array centered on the axis of the optical axis.
Preferably, the middle cylinder part is of an integrally formed structure.
The utility model has the advantages that: the utility model provides an oil leakage prevention type linear bearing. The size of sealing washer internal diameter can be controlled through the extrusion of stripper plate, and when gapped between sealing washer and the optical axis, stripper plate extrusion sealing washer can be so that sealing washer and optical axis laminating are sealed.
Drawings
Fig. 1 is a schematic view of the present invention.
In the figure: the device comprises a shell 1, a ball 2, a retainer 3, a middle cylinder part 4, an optical axis 5, a support 6, an annular groove 7, a sealing ring 8, an extrusion plate 9, a bolt 10, a base 11, a cover plate 12 and a fixing bolt 13.
Detailed Description
The invention will be further explained in detail with reference to the drawings and the following detailed description:
example (b):
see fig. 1; an oil leakage prevention type linear bearing comprises a shell 1, a plurality of balls 2 positioned in the shell 1 and a retainer 3 used for supporting the balls 2, wherein the shell 1 comprises a middle cylinder part 4 and sealing mechanisms positioned at two ends of the middle cylinder part 4 and used for preventing lubricating oil from leaking out of the end part of the shell 1; the holder 3 is located between the sealing mechanisms. The middle cylinder part 4 is of an integrated structure.
The sealing mechanism comprises an annular bracket 6, an annular groove 7 positioned on the inner side of the bracket 6, a sealing ring 8 positioned in the annular groove 7, and a squeezing plate 9 which is used for squeezing the sealing ring 8 so as to reduce the radius of the inner edge of the sealing ring 8 and is attached to the optical axis 5; the extrusion plate 9 is annular, and the extrusion plate 9 is located in the annular groove 7.
The extrusion plate 9 is positioned on one side of the sealing ring 8 far away from the middle cylinder part 4, and a plurality of bolts 10 for applying force towards one side of the sealing ring 8 to the extrusion plate 9 are connected to the support 6 in a threaded mode. The bolts 10 corresponding to each bracket 6 are arranged in an annular array centered on the axis of the optical axis 5.
The bracket 6 comprises a base 11 which is detachably connected with the end part of the middle cylinder part 4 and a cover plate 12 which is detachably connected with one side of the base 11 far away from the middle cylinder part 4; the base 11 and the cover plate 12 enclose the annular groove 7 therebetween. The bolt 10 and the cover plate 12 are screwed. The base 11 and the cover plate 12 are penetrated by fixing bolts 13, and the fixing bolts 13 are in threaded connection with the middle cylinder part 4. The fixing bolts 13 corresponding to each bracket 6 are arranged in an annular array centered on the axis of the optical axis 5.
Principle of embodiment:
when the present embodiment is assembled, the balls 2 and the retainer 3 are first placed in the middle cylinder 4, then the base 11, the seal ring 8, the pressing plate 9 and the cover plate 12 are sequentially installed on the end of the middle cylinder 4, then the cover plate 12 and the base 11 are fixed on the end of the middle cylinder 4 by the fixing bolt 13, and then the bolt 10 is screwed on the cover plate 12.
When the oil leakage prevention device is used, the optical axis 5 penetrates through the shell 1, then the bolt 10 is rotated, the bolt 10 extrudes the extrusion plate 9, the extrusion plate 9 extrudes the sealing ring 8, after the sealing ring 8 is pressed, the radius of the inner edge of the sealing ring 8 is reduced, and the inner edge of the sealing ring 8 is attached to the optical axis 5, so that oil between the shell 1 and the optical axis 5 is prevented from leaking from the end part of the shell 1.
Claims (7)
1. The utility model provides a leak protection oil type linear bearing, includes shell, a plurality of ball that are located the shell, is used for supporting the holder of ball, its characterized in that:
the shell comprises a middle cylinder part and sealing mechanisms which are positioned at two ends of the middle cylinder part and are used for preventing lubricating oil from leaking out of the end parts of the shell;
the retainer is positioned between the sealing mechanisms;
the sealing mechanism comprises an annular bracket, an annular groove positioned on the inner side of the bracket, a sealing ring positioned in the annular groove, and an extrusion plate used for extruding the sealing ring so as to reduce the radius of the inner edge of the sealing ring and attach the inner edge of the sealing ring to an optical axis;
the extrusion plate is annular and is positioned in the annular groove.
2. The linear bearing of claim 1, wherein the pressing plate is located on a side of the sealing ring away from the middle cylinder member, and the support is threaded with a plurality of bolts for applying a force to the pressing plate toward the side of the sealing ring.
3. The oil-leakage-preventing linear bearing of claim 2, wherein the support comprises a base detachably connected to the end of the middle cylinder, and a cover detachably connected to the side of the base away from the middle cylinder;
the base and the cover plate are surrounded to form the annular groove, and the bolt is in threaded connection with the cover plate.
4. The oil-leakage-preventing linear bearing of claim 3, wherein the base and the cover plate are penetrated by fixing bolts, and the fixing bolts are in threaded connection with the middle cylinder member.
5. The oil-leak-proof linear bearing of claim 4, wherein the fixing bolts of each bracket are arranged in an annular array centered on the axis of the optical axis.
6. The oil-leak-proof linear bearing of claim 2, wherein the bolts of each bracket are arranged in an annular array centered on the axis of the optical axis.
7. The oil leakage prevention linear bearing of any one of claims 1 to 6, wherein the intermediate cylinder member is of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317428.6U CN213088527U (en) | 2020-07-07 | 2020-07-07 | Oil leakage prevention linear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021317428.6U CN213088527U (en) | 2020-07-07 | 2020-07-07 | Oil leakage prevention linear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213088527U true CN213088527U (en) | 2021-04-30 |
Family
ID=75623794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021317428.6U Active CN213088527U (en) | 2020-07-07 | 2020-07-07 | Oil leakage prevention linear bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213088527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165407A (en) * | 2021-11-03 | 2022-03-11 | 余世亮 | Sealing device for plunger pump and plunger pump thereof |
-
2020
- 2020-07-07 CN CN202021317428.6U patent/CN213088527U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165407A (en) * | 2021-11-03 | 2022-03-11 | 余世亮 | Sealing device for plunger pump and plunger pump thereof |
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