CN211874949U - Seamless reverse-winding lubricating shaft sleeve - Google Patents
Seamless reverse-winding lubricating shaft sleeve Download PDFInfo
- Publication number
- CN211874949U CN211874949U CN202020197146.0U CN202020197146U CN211874949U CN 211874949 U CN211874949 U CN 211874949U CN 202020197146 U CN202020197146 U CN 202020197146U CN 211874949 U CN211874949 U CN 211874949U
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- China
- Prior art keywords
- layer
- shaft sleeve
- steel material
- rolling
- material layer
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000004663 powder metallurgy Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
Images
Abstract
The utility model discloses a lubricated axle sleeve of seamless back-rolling. The seamless back-rolling lubricating shaft sleeve is simple in structure, good in processing manufacturability, high in production efficiency, excellent in self-lubricating performance and free of an open seam. The composite material base layer is a steel material layer, and a copper alloy layer is sintered on the steel material layer or a copper powder layer and a polytetrafluoroethylene layer are sequentially sintered on the steel material layer. The composite material plate is made into the opening shaft sleeve with the wear-resistant layer on the outer circular surface in a reverse rolling mode opposite to the traditional forward rolling mode, and then the opening seam is welded, so that the stability of the inner diameter and the outer diameter of the shaft sleeve is ensured. The wear resistance of the sliding bearing is greatly superior to that of a sliding bearing made of a powder metallurgy material, the size is stable, and the service life of the component is prolonged.
Description
Technical Field
The utility model relates to a slide bearing especially relates to a lubricated axle sleeve of seamless backrush.
Background
At present, a plurality of sleeve-shaped sliding bearings are made of composite material plates, and are bent into a shaft sleeve with an inner wear-resistant layer and an outer steel layer and an opening by a rolling method. When in use, the shaft sleeve is directly pressed into the seat hole, and the size of the inner hole of the shaft sleeve is directly related to the size of the seat hole and the wall thickness of the shaft sleeve because the shaft sleeve is open. In many occasions, the outer circular surface of the shaft sleeve is required to be wear-resistant, the shaft is arranged in the inner hole of the shaft sleeve, the shaft sleeve and the mounting shaft cannot rotate or move relatively, the shaft sleeve and the shaft are connected in an interference fit mode, for example, a transmission shaft is connected with an intermediate gear in a transmission case in a hollow way, the transmission shaft needs to be fixed with the shaft sleeve of which the outer circular surface is wear-resistant, the powder metallurgy sleeve is adopted in the conventional design, the powder metallurgy sleeve is quickly sleeved on the shaft after being heated in oil, and due to the poor wear resistance of the powder metallurgy sleeve, in addition, in lubricating oil accumulated by grinding dust of the powder metallurgy in use, the secondary wear of mechanical parts is caused, and the powder metallurgy also needs to work normally for a long time under a better lubricating condition, so the shaft sleeve using the powder metallurgy is not ideal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, processing technology are good, production efficiency is high, self-lubricating performance is good, the seamless anti-lubricated axle sleeve of rolling up of no opening seam.
In order to meet the requirements, the adopted technical scheme is as follows: the composite material base layer is a steel material layer, and a copper alloy layer is sintered on the steel material layer or a copper powder layer and a polytetrafluoroethylene layer are sequentially sintered on the steel material layer.
The outer circle surface is provided with a spiral oil groove.
According to the seamless reverse-rolling lubricating shaft sleeve with the structural design, the composite material plate is adopted to be made into the opening shaft sleeve with the wear-resistant layer on the outer circular surface in a reverse-rolling mode opposite to the traditional forward-rolling mode, and then the opening seam is welded, so that the stability of the inner diameter and the outer diameter of the shaft sleeve is ensured. And the copper alloy layer and the polytetrafluoroethylene layer have good wear resistance, and the polytetrafluoroethylene layer also has good oil-free lubricating property, so that the wear resistance of the polytetrafluoroethylene layer is greatly superior to that of a sliding bearing made of a powder metallurgy material, the size of the polytetrafluoroethylene layer is stable, and the service life of the component is prolonged.
Drawings
FIG. 1 is a front view of a seamless reverse-wound lubrication bushing;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is an enlarged fragmentary view of FIG. 2 in area H, illustrating a sintered copper alloy layer on the steel material layer;
fig. 4 is a partial enlarged view of fig. 2 in a region H, in which a copper powder layer and a polytetrafluoroethylene layer are sequentially sintered on a steel material layer.
In the figure: a layer of steel material; 2. seaming; 3. a copper alloy layer; 4. a copper powder layer; 5. a polytetrafluoroethylene layer; 6. an oil groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Fig. 1, 2 and 3 are structural diagrams of a seamless reverse-rolling lubricating shaft sleeve, and it is seen from the diagrams that the outer circle surface of the shaft sleeve is a wear-resistant layer, the lining is a shaft sleeve made of a composite material consisting of a steel material layer 1, a rolling joint 2 of the shaft sleeve is made into an integral annular shaft sleeve without an open seam through welding, and the composite material base layer is formed by sintering a copper alloy layer 3 on the steel material layer 1 or sequentially sintering a copper powder layer 4 and a polytetrafluoroethylene layer 5 on the steel material layer 1, as shown in fig. 4. The outer circumferential surface is formed with a helical oil groove 6.
The seamless reverse-rolling lubricating shaft sleeve is manufactured by rolling a corresponding composite material plate into a circular bushing with a joint 2 according to the specification of the seamless reverse-rolling lubricating shaft sleeve, welding the joint 2 on a steel material layer 1, and machining to meet the required inner and outer diameter size requirement to manufacture the integral circular shaft sleeve without an opening seam. As for the oil groove 6 of the spiral shape on the outer circumferential surface, the oil groove 6 may be formed on a plate of a composite material and then rolled, or the oil groove 6 may be formed after the annular boss is formed.
Claims (2)
1. A seamless reverse-rolling lubricating shaft sleeve is characterized in that the surface of the excircle of the shaft sleeve is a wear-resistant layer, the lining is a shaft sleeve made of a composite material consisting of a steel material layer, a rolling joint of the shaft sleeve is made into an integral annular shaft sleeve without an opening seam through welding, the composite material base layer is the steel material layer, and a copper alloy layer is sintered on the steel material layer or a copper powder layer and a polytetrafluoroethylene layer are sequentially sintered on the steel material layer.
2. The seamless reverse-wound lubrication bushing according to claim 1, wherein said outer circumferential surface is formed with a helical oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197146.0U CN211874949U (en) | 2020-02-22 | 2020-02-22 | Seamless reverse-winding lubricating shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197146.0U CN211874949U (en) | 2020-02-22 | 2020-02-22 | Seamless reverse-winding lubricating shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211874949U true CN211874949U (en) | 2020-11-06 |
Family
ID=73253459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020197146.0U Active CN211874949U (en) | 2020-02-22 | 2020-02-22 | Seamless reverse-winding lubricating shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211874949U (en) |
-
2020
- 2020-02-22 CN CN202020197146.0U patent/CN211874949U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.18, Hongwei North Road, ganyao Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Shuangfei Oil Free Bearing Group Co.,Ltd. Address before: No.18, Hongwei North Road, ganyao Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG SF OILLESS BEARING Co.,Ltd. |