CN218670228U - Self-lubricating shaft sleeve - Google Patents
Self-lubricating shaft sleeve Download PDFInfo
- Publication number
- CN218670228U CN218670228U CN202223452245.7U CN202223452245U CN218670228U CN 218670228 U CN218670228 U CN 218670228U CN 202223452245 U CN202223452245 U CN 202223452245U CN 218670228 U CN218670228 U CN 218670228U
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- oil
- axle sleeve
- storage tank
- oil storage
- self
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model belongs to the technical field of the axle sleeve structure technique and specifically relates to a self-lubricating axle sleeve is equipped with the axle sleeve body, its characterized in that the axle sleeve body establish to the annular, the equipartition is equipped with at least three both ends open-ended oil storage tank on the inner wall of annular axle sleeve body, the cross-section of oil storage tank be the arc, be equipped with in the oil storage tank and get rid of the oil pin, get rid of the oil pin and be cylindricly, cylindric lateral wall of getting rid of the oil pin contacts with the groove face of oil storage tank and the output shaft that penetrates the axle sleeve body respectively, has advantages such as simple structure, wearability are good, stability is high, life-span improvement.
Description
Technical Field
The utility model belongs to the technical field of the axle sleeve structure technique and specifically relates to a self-lubricating axle sleeve of simple structure, wearability are good, stability is high, life-span improves.
Background
As is known, the powder metallurgy shaft sleeve is a conventional product in powder metallurgy parts, the using amount of the powder metallurgy shaft sleeve accounts for more than 30% of the whole electric drill industry, and the design of the powder metallurgy shaft sleeve directly influences the quality of the product. Therefore, a reasonable design is very important for the service life.
At present, because the gear box of the electric drill requires volume reduction and weight reduction, the output shaft of the electric drill is not connected by a bearing with an inner sleeve, an outer sleeve and balls generally, but is directly connected by a shaft sleeve, but the shaft sleeve is used under severe working conditions of high temperature and high rotating speed, the wear resistance is a main factor influencing the service life of the shaft sleeve and the whole electric drill, and the increase of the clearance between the inner hole of the shaft sleeve and the outer diameter of the output shaft reduces the running stability of the electric drill, thereby reducing the working efficiency and the machining precision.
Disclosure of Invention
The utility model aims at solving the deficiencies of the prior art, providing a self-lubricating axle sleeve that simple structure, wearability are good, stability is high, life-span improves.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a self-lubricating axle sleeve, is equipped with the axle sleeve body, its characterized in that the axle sleeve body establish to the annular, the equipartition is equipped with at least three both ends open-ended oil storage tank on the inner wall of annular axle sleeve body, the cross-section of oil storage tank be the arc, be equipped with in the oil storage tank and get rid of the oil pin, get rid of the oil pin and be cylindricly, the cylindric lateral wall of getting rid of the oil pin contacts with the output shaft that penetrates the axle sleeve body with the capping of oil storage tank respectively.
The outer diameter of the shaft sleeve is 20mm to 30 mm, and the length is 15mm to 25mm.
The oil storage tank in and between the output shaft fill lubricated oil reservoir.
Get rid of oil pin's external diameter be 3 mm ~ 5mm, length is 15mm to 25mm.
The oil storage tank be equipped with four.
The utility model discloses owing to adopt above-mentioned structure, have advantages such as simple structure, wearability are good, stability is high, the life-span improves.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is further described with reference to the accompanying drawings:
as shown in the accompanying drawings, a self-lubricating shaft sleeve is provided with a shaft sleeve body 1 and is characterized in that the shaft sleeve body 1 is arranged into an annular shape, at least three oil storage tanks 2 with two open ends are uniformly distributed on the inner wall of the annular shaft sleeve body 1, the cross sections of the oil storage tanks 2 are arc-shaped, oil throwing pins 3 are arranged in the oil storage tanks 2, the oil throwing pins 3 are cylindrical, and the side walls of the cylindrical oil throwing pins 3 are respectively contacted with the groove surfaces of the oil storage tanks 2 and an output shaft 4 penetrating into the shaft sleeve body 1.
Furthermore, the outer diameter of the shaft sleeve ranges from 20mm to 30 mm, and the length of the shaft sleeve ranges from 15mm to 25mm.
Furthermore, a lubricating oil layer is filled between the oil storage tank 2 and the output shaft 4.
Further, the oil throwing pin 3 is 3 mm-5 mm in outer diameter and 15mm-25mm in length.
Further, four oil storage tanks 2 are arranged.
The length of the oil throwing pin is the same as that of the shaft sleeve, so that the oil throwing effect is guaranteed.
The utility model discloses an axle sleeve is installed on electric drill output shaft 4 in the electric drill gear box, the both sides of axle sleeve are equipped with other axle sleeves or gear spare respectively, the both ends of oil storage tank 2 are respectively through other axle sleeves or gear spare shutoff, get rid of oil pin 3 also along with output shaft 4 rotates under output shaft 4's drive, and take the lubricating grease of the lubricating grease layer in the oil storage tank 2 to output shaft 4 surface, through reasonable structural design, increase oil storage tank 2 with the axle sleeve design, and install one in oil storage tank 2 and get rid of oil pin 3, when output shaft 4 runs at a high speed, get rid of oil pin 3 in the oil storage tank 2 also along with output shaft 4 rotates under output shaft 4's drive, and take the lubricating grease of the lubricating grease layer in the oil storage tank 2 to output shaft 4 surface, play the effect of reducing for output shaft 4 outer walls and bearing inner wall antifriction, the utility model discloses an inner hole design of axle sleeve body 1 becomes with output shaft 4 cooperation size, when cooperating with output shaft 4 outer diameters, when guaranteeing use strength, also can guarantee the normal supply of the lubricating grease, can effectively reduce the wearing resistance of the oil storage tank 1 inner hole, when the contact of lubricating grease contact of oil groove 2, the output shaft 4 high friction surface friction is reduced, the utility model output shaft 4 advantage of the utility model, the high friction, the output shaft can not only the utility model discloses an advantage of the high efficiency of the utility model discloses an output shaft 4, the utility model discloses an advantage of the high efficiency of the lubricating grease is realized.
Claims (5)
1. The utility model provides a self-lubricating axle sleeve, is equipped with the axle sleeve body, its characterized in that the axle sleeve body establish to the annular, the equipartition is equipped with at least three both ends open-ended oil storage tank on the inner wall of annular axle sleeve body, the cross-section of oil storage tank be the arc, be equipped with in the oil storage tank and get rid of the oil pin, the oil pin that gets rid of be cylindric, the cylindric lateral wall that gets rid of the oil pin contacts with the groove face of oil storage tank and the output shaft that penetrates the axle sleeve body respectively.
2. The self-lubricating shaft sleeve as claimed in claim 1, wherein the shaft sleeve has an outer diameter of 20mm to 30 mm and a length of 15mm to 25mm.
3. The self-lubricating bushing according to claim 1, wherein a layer of lubricating oil is filled between the oil reservoir and the output shaft.
4. The self-lubricating shaft sleeve as claimed in claim 1, wherein the oil throwing pin has an outer diameter of 3 mm to 5mm and a length of 15mm to 25mm.
5. The self-lubricating bushing according to claim 1, wherein there are four oil reservoirs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223452245.7U CN218670228U (en) | 2022-12-23 | 2022-12-23 | Self-lubricating shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223452245.7U CN218670228U (en) | 2022-12-23 | 2022-12-23 | Self-lubricating shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218670228U true CN218670228U (en) | 2023-03-21 |
Family
ID=85550821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223452245.7U Active CN218670228U (en) | 2022-12-23 | 2022-12-23 | Self-lubricating shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218670228U (en) |
-
2022
- 2022-12-23 CN CN202223452245.7U patent/CN218670228U/en active Active
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| GR01 | Patent grant |