CN210118356U - Inner bore bush - Google Patents
Inner bore bush Download PDFInfo
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- CN210118356U CN210118356U CN201920931775.9U CN201920931775U CN210118356U CN 210118356 U CN210118356 U CN 210118356U CN 201920931775 U CN201920931775 U CN 201920931775U CN 210118356 U CN210118356 U CN 210118356U
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- sleeve
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- bush
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Abstract
The utility model discloses an inner hole bush, its characterized in that: the inner sleeve and the outer sleeve are fixedly sleeved to form the inner sleeve, the upper end and the lower end of the inner sleeve are large-outer-diameter sleeve sections, the middle section is a small-outer-diameter sleeve section, the outer diameter of the large-outer-diameter sleeve section is matched with the inner hole aperture of the outer sleeve, a storage space is defined between the outer circle surface of the small-outer-diameter sleeve section and the inner hole aperture of the outer sleeve, and a through groove is formed in the pipe wall of the small-outer-diameter sleeve section to enable the inner. The utility model discloses can keep the self-lubricating function for a long time, be applicable to under the closed environment and the axle type part between reliable rotation be connected.
Description
Technical Field
The utility model relates to a bush for product hole.
Background
In order to ensure that friction between an inner hole of a product and the excircle of a shaft part rotatably arranged in the inner hole of the product is as small as possible and the strength of the inner hole of the product is improved, an inner hole lining is usually arranged in the inner hole of the product, lubricating grease is added into the inner hole lining for lubrication, but the lubricating grease cannot be kept for a long time, so that the long-term self-lubricating function of the inner hole lining is difficult to keep in a closed environment, and the reliable rotating connection between the inner hole lining and the.
Disclosure of Invention
In view of the not enough of background art, the utility model aims at providing a can keep the self-lubricating function for a long time, be applicable to under the closed environment and reliably rotate the hole bush of being connected between the axle type part.
The utility model adopts the following technical proposal to complete:
hole bush, its characterized in that: the inner sleeve and the outer sleeve are fixedly sleeved to form the inner sleeve, the upper end and the lower end of the inner sleeve are large-outer-diameter sleeve sections, the middle section is a small-outer-diameter sleeve section, the outer diameter of the large-outer-diameter sleeve section is matched with the inner hole aperture of the outer sleeve, a storage space is defined between the outer circle surface of the small-outer-diameter sleeve section and the inner hole aperture of the outer sleeve, and a through groove is formed in the pipe wall of the small-outer-diameter sleeve section to enable the inner.
Above-mentioned technical scheme's hole bush, it forms to cup joint by interior sleeve pipe and outer tube fixation, then utilize the storage space who encloses between the inside and outside sleeve pipe, storage lubricating grease, lubricating grease will enter into the hole of bush through the through groove when using like this, with rotate and locate and reliably rotate and be connected between the axle type part of bush hole, because axle type part can form the convulsions effect to storage space when carrying out high-speed rotation in the bush hole, so lubricating grease in the storage space can constantly get into the bush hole, thereby make the hole bush can keep self-lubricating function under the closed environment for a long time.
Preferably, three groups of through grooves are distributed along the circumference of the pipe wall of the small-outer-diameter casing pipe section.
Preferably, each set of through grooves is formed by two long hole grooves.
Drawings
The utility model discloses there is following figure:
figure 1 is a view of the end face of the present invention,
fig. 2 is an axial sectional view of fig. 1.
Detailed Description
As shown in the figure, the utility model discloses an inner bore bush is formed by interior sleeve pipe 2 and the fixed cup joint of outer tube 1, and interior sleeve pipe 2's upper and lower both ends are big external diameter casing pipe section 21, and the interlude is little external diameter casing pipe section 22, and the external diameter of big external diameter casing pipe section 21 matches the hole aperture of outer tube 1, encloses out storage space 3 between the excircle surface of little external diameter casing pipe section 22 and the hole aperture of outer tube 1, be equipped with on the pipe wall of little external diameter casing pipe section 22 and link up groove 4 make interior sleeve pipe 2's hole with storage space 3 communicates with each other, link up groove 4 and lay three groups along the pipe wall circumference of little external diameter casing pipe section 22, every group link up.
Claims (3)
1. Hole bush, its characterized in that: the inner sleeve and the outer sleeve are fixedly sleeved to form the inner sleeve, the upper end and the lower end of the inner sleeve are large-outer-diameter sleeve sections, the middle section is a small-outer-diameter sleeve section, the outer diameter of the large-outer-diameter sleeve section is matched with the inner hole aperture of the outer sleeve, a storage space is defined between the outer circle surface of the small-outer-diameter sleeve section and the inner hole aperture of the outer sleeve, and a through groove is formed in the pipe wall of the small-outer-diameter sleeve section to enable the inner.
2. The bore liner of claim 1, wherein: three groups of through grooves are distributed along the circumference of the pipe wall of the small-outer-diameter casing pipe section.
3. The bore liner of claim 2, wherein: each group of through grooves consists of an upper long hole groove and a lower long hole groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931775.9U CN210118356U (en) | 2019-06-20 | 2019-06-20 | Inner bore bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931775.9U CN210118356U (en) | 2019-06-20 | 2019-06-20 | Inner bore bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118356U true CN210118356U (en) | 2020-02-28 |
Family
ID=69615978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920931775.9U Active CN210118356U (en) | 2019-06-20 | 2019-06-20 | Inner bore bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118356U (en) |
-
2019
- 2019-06-20 CN CN201920931775.9U patent/CN210118356U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |