CN211314860U - Oil seal shaft sleeve with built-in balls - Google Patents
Oil seal shaft sleeve with built-in balls Download PDFInfo
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- CN211314860U CN211314860U CN201922423021.5U CN201922423021U CN211314860U CN 211314860 U CN211314860 U CN 211314860U CN 201922423021 U CN201922423021 U CN 201922423021U CN 211314860 U CN211314860 U CN 211314860U
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Abstract
The utility model discloses an oil blanket axle sleeve of built-in ball, including axle sleeve outer part, first axle sleeve inner part, ball, elastic washer, second axle sleeve inner part, axle sleeve outer part cover is outside at first axle sleeve inner part and second axle platform inner part, and first axle sleeve inner part and second axle sleeve inner part are inside to be equipped with the oil storage tank, and ball and elastic washer are put at second axle sleeve inner part upper surface, the communicating oilhole of crossing of ball shutoff and oil storage tank. The utility model relates to an oil blanket axle sleeve of built-in ball, this axle sleeve are when the cover is epaxial, and the axle extrudees the built-in ball of axle sleeve inwards, stores the even hole through the axle sleeve inner wall of sealed oil in the oil groove and flows, fills the clearance between axle and the axle sleeve at last.
Description
Technical Field
The utility model relates to an oil blanket axle sleeve of built-in ball.
Background
The shaft sleeve is a component which is sleeved outside the shaft and protects the shaft. When the shaft rotates or moves linearly, the shaft sleeve wrapped outside the shaft instead of the shaft rubs against the housing or other parts.
In some cases, it is necessary to form a seal between the shaft and the sleeve, and the prior art adopts a seal ring seal and a seal oil seal. The sealing effect can reduce in case the sealing washer is ageing back, and the oil blanket key lies in the evenly distributed of sealed oil, avoids remaining the space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil blanket axle sleeve of built-in ball, this axle sleeve when the cover is epaxial, the axle with the built-in ball of axle sleeve inwards extrude, store the even hole outflow through the axle sleeve inner wall of sealed oil in the oil groove, fill the clearance between axle and the axle sleeve at last.
In order to achieve the purpose, the technical scheme of the utility model is to design an oil seal shaft sleeve with built-in balls, which comprises a shaft sleeve outer part, a first shaft sleeve inner part, the balls, an elastic washer and a second shaft sleeve inner part;
the first sleeve inner part is in a sleeve shape, a first oil storage groove is formed in the first sleeve inner part, a second oil inlet hole is formed in the upper surface of the first sleeve inner part and communicated with the first oil storage groove, a plurality of first oil passing holes are formed in the lower surface of the first sleeve inner part, and the upper ends of the first oil passing holes are communicated with the first oil storage groove;
the inner part of the second shaft sleeve is in a sleeve shape, the upper surface of the inner part of the second shaft sleeve is an annular groove, and a plurality of holes for being blocked by the balls are formed in the inner wall of the annular groove; the inner and outer diameters of the second shaft sleeve inner part and the first shaft sleeve inner part are the same; external threads are arranged on the outer walls of the second shaft sleeve inner part and the first shaft sleeve inner part; the elastic washer is placed in the annular groove in the upper surface of the second shaft sleeve inner part, the outer wall of the elastic washer is attached to the inner side of the outer wall of the annular groove, the inner wall of the elastic washer is attached to one side of the balls, the balls are distributed in the annular groove in the upper surface of the second shaft sleeve inner part in a surrounding mode, one side of each ball seals a hole in the inner wall of the annular groove, and the other side of each ball is attached to the inner wall of the elastic washer; the upper part of the ball seals the lower end of the first oil passing hole;
the inner wall of the outer part of the shaft sleeve is provided with internal threads, and the outer part of the shaft sleeve can be sleeved outside the inner part of the first shaft sleeve and the inner part of the second shaft sleeve in a threaded manner; the upper end surface of the shaft sleeve outer part extends inwards, the extending distance is smaller than or equal to the wall thickness of the first shaft sleeve inner part and the second shaft sleeve inner part, a first oil inlet hole is formed in the upper end surface of the shaft sleeve outer part, and the first oil inlet hole is overlapped with a second oil inlet hole in the upper surface of the first shaft sleeve inner part.
A second oil storage groove is formed in the inner part of the second shaft sleeve, a plurality of second oil passing holes are formed in the upper surface of the inner part of the second shaft sleeve, the lower ends of the second oil passing holes are communicated with the second oil storage groove, and the upper ends of the second oil passing holes are blocked by balls one by one.
The lower end surface of the second sleeve inner part extends outwards and has a thickness less than or equal to the wall thickness of the sleeve outer part.
The outward extension of the lower end face of the second shaft sleeve inner part and the inward extension of the upper end face of the shaft sleeve outer part play a role in limiting, so that the position is limited when the shaft sleeve outer part is sleeved outside the first shaft sleeve inner part and the second shaft sleeve inner part in a threaded manner.
The elastic washer is made of elastic rubber or sponge. The function of the spring washer is to act against the ball and, as the ball moves backwards, the spring washer compresses.
When the sealing oil pump is used, sealing oil is pressed into the first oil storage tank from the first oil inlet hole and the second oil inlet hole; insert the axle sleeve, the axle outer wall can push the ball backward, and the ball removes, and the elasticity packing ring is compressed, and first oilhole and second oilhole produce the space because the removal of ball, and the hole on the inner wall of the annular groove of the interior part upper surface of second axle sleeve flows down and evenly fills in the space of axle and the interior part inner wall contact surface of second axle sleeve in the space from the space to the sealing oil, forms the oil blanket. Excess oil enters the second oil reservoir. Because the oil storage function of first oil storage tank and second oil storage tank, sealed oil between axle and the axle sleeve once volatilizees and reduces, oil can be followed first oil storage tank and the interior replenishment of second oil storage tank.
The utility model has the advantages and the beneficial effects that:
the utility model relates to an oil blanket axle sleeve of built-in ball, this axle sleeve are when the cover is epaxial, and the axle extrudees the built-in ball of axle sleeve inwards, stores the even hole through the axle sleeve inner wall of sealed oil in the oil groove and flows, fills the clearance between axle and the axle sleeve at last.
In addition, the ball damage or the elastic washer aging can be realized by replacing the ball or the elastic washer after disassembling the sleeve outer part, the first sleeve inner part and the second sleeve inner part.
The sleeve outer member serves as a protection, and instead of the shaft being subjected to wear, the first sleeve inner member and the second sleeve inner member are protected internally, so that only the sleeve outer member can be replaced when the sleeve outer member is severely worn.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of each component of the present invention.
Fig. 3 is a schematic view of the present invention.
Fig. 4 is a schematic view of the components in the second bushing.
Fig. 5 is a schematic view of the components within the first bushing.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example (b):
an oil seal shaft sleeve with built-in balls comprises a shaft sleeve outer part 1, a first shaft sleeve inner part 2, balls 3, an elastic washer 4 and a second shaft sleeve inner part 5;
the first shaft sleeve inner part 2 is in a sleeve shape, a first oil storage tank 2-2 is arranged inside the first shaft sleeve inner part 2, a second oil inlet hole 2-1 is formed in the upper surface of the first shaft sleeve inner part 2, the second oil inlet hole 2-1 is communicated with the first oil storage tank 2-2, a plurality of first oil passing holes 2-3 are formed in the lower surface of the first shaft sleeve inner part 2, and the upper ends of the first oil passing holes 2-3 are communicated with the first oil storage tank 2-2;
the second shaft sleeve inner part 5 is in a sleeve shape, the upper surface of the second shaft sleeve inner part 5 is an annular groove, and a plurality of holes for being blocked by the balls 3 are formed in the inner wall of the annular groove; the inner diameter and the outer diameter of the second sleeve inner part 5 are the same as those of the first sleeve inner part 2; the outer walls of the second sleeve inner part 5 and the first sleeve inner part 2 are both provided with external threads; the elastic washer 4 is placed in an annular groove in the upper surface of the second sleeve inner part 5, the outer wall of the elastic washer 4 is attached to the inner side of the outer wall of the annular groove, the inner wall of the elastic washer 4 is attached to one side of the ball 3, a plurality of balls 3 are arranged in the annular groove in the upper surface of the second sleeve inner part 5 in a surrounding mode, one side of the ball 3 seals a hole in the inner wall of the annular groove, and the other side of the ball is attached to the inner wall of the elastic washer 4; the upper part of the ball 3 blocks the lower end of the first oil passing hole 2-3;
the inner wall of the shaft sleeve outer part 1 is provided with internal threads, and the shaft sleeve outer part 1 can be sleeved outside the first shaft sleeve inner part 2 and the second shaft sleeve inner part 5 in a threaded manner; the upper end surface of the shaft sleeve outer part 1 extends inwards for a distance less than or equal to the wall thickness of the first shaft sleeve inner part 2 and the second shaft sleeve inner part 5, a first oil inlet hole 1-1 is formed in the upper end surface of the shaft sleeve outer part 1, and the first oil inlet hole 1-1 is overlapped with a second oil inlet hole 2-1 in the upper surface of the first shaft sleeve inner part 2.
The second oil storage tank 5-2 is arranged in the second shaft sleeve inner part 5, a plurality of second oil passing holes 5-1 are formed in the upper surface of the second shaft sleeve inner part 5, the lower ends of the second oil passing holes 5-1 are communicated with the second oil storage tank 5-2, and the upper ends of the second oil passing holes 5-1 are blocked by the balls 3 one by one.
The lower end surface of the second sleeve inner part 5 extends outwards and has a thickness less than or equal to the wall thickness of the sleeve outer part 1.
The elastic washer 4 is made of elastic rubber or sponge.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides an oil blanket axle sleeve of built-in ball which characterized in that: the bearing comprises a shaft sleeve outer part, a first shaft sleeve inner part, a ball, an elastic washer and a second shaft sleeve inner part;
the first sleeve inner part is in a sleeve shape, a first oil storage groove is formed in the first sleeve inner part, a second oil inlet hole is formed in the upper surface of the first sleeve inner part and communicated with the first oil storage groove, a plurality of first oil passing holes are formed in the lower surface of the first sleeve inner part, and the upper ends of the first oil passing holes are communicated with the first oil storage groove;
the inner part of the second shaft sleeve is in a sleeve shape, the upper surface of the inner part of the second shaft sleeve is an annular groove, and a plurality of holes for being blocked by the balls are formed in the inner wall of the annular groove; the inner and outer diameters of the second shaft sleeve inner part and the first shaft sleeve inner part are the same; external threads are arranged on the outer walls of the second shaft sleeve inner part and the first shaft sleeve inner part; the elastic washer is placed in the annular groove in the upper surface of the second shaft sleeve inner part, the outer wall of the elastic washer is attached to the inner side of the outer wall of the annular groove, the inner wall of the elastic washer is attached to one side of the balls, the balls are distributed in the annular groove in the upper surface of the second shaft sleeve inner part in a surrounding mode, one side of each ball seals a hole in the inner wall of the annular groove, and the other side of each ball is attached to the inner wall of the elastic washer; the upper part of the ball seals the lower end of the first oil passing hole;
the inner wall of the outer part of the shaft sleeve is provided with internal threads, and the outer part of the shaft sleeve can be sleeved outside the inner part of the first shaft sleeve and the inner part of the second shaft sleeve in a threaded manner; the upper end surface of the shaft sleeve outer part extends inwards, the extending distance is smaller than or equal to the wall thickness of the first shaft sleeve inner part and the second shaft sleeve inner part, a first oil inlet hole is formed in the upper end surface of the shaft sleeve outer part, and the first oil inlet hole is overlapped with a second oil inlet hole in the upper surface of the first shaft sleeve inner part.
2. An oil seal shaft sleeve with built-in ball bearing according to claim 1, wherein: a second oil storage groove is formed in the inner part of the second shaft sleeve, a plurality of second oil passing holes are formed in the upper surface of the inner part of the second shaft sleeve, the lower ends of the second oil passing holes are communicated with the second oil storage groove, and the upper ends of the second oil passing holes are blocked by balls one by one.
3. An oil seal shaft sleeve with built-in ball bearing according to claim 1, wherein: the lower end surface of the second sleeve inner part extends outwards and has a thickness less than or equal to the wall thickness of the sleeve outer part.
4. An oil seal shaft sleeve with built-in ball bearing according to claim 1, wherein: the elastic washer is made of elastic rubber or sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423021.5U CN211314860U (en) | 2019-12-30 | 2019-12-30 | Oil seal shaft sleeve with built-in balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423021.5U CN211314860U (en) | 2019-12-30 | 2019-12-30 | Oil seal shaft sleeve with built-in balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314860U true CN211314860U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423021.5U Active CN211314860U (en) | 2019-12-30 | 2019-12-30 | Oil seal shaft sleeve with built-in balls |
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| Country | Link |
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| CN (1) | CN211314860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678800A (en) * | 2022-03-30 | 2022-06-28 | 平煤神马建工集团有限公司 | Rope net supporting device for crossing erection of conducting wire |
-
2019
- 2019-12-30 CN CN201922423021.5U patent/CN211314860U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678800A (en) * | 2022-03-30 | 2022-06-28 | 平煤神马建工集团有限公司 | Rope net supporting device for crossing erection of conducting wire |
| CN114678800B (en) * | 2022-03-30 | 2023-11-10 | 平煤神马建工集团有限公司 | Rope net supporting device for crossing and erecting wires |
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