CN201196216Y - Bismuth-containing leadless bimetallic bearing - Google Patents
Bismuth-containing leadless bimetallic bearing Download PDFInfo
- Publication number
- CN201196216Y CN201196216Y CNU2008200869676U CN200820086967U CN201196216Y CN 201196216 Y CN201196216 Y CN 201196216Y CN U2008200869676 U CNU2008200869676 U CN U2008200869676U CN 200820086967 U CN200820086967 U CN 200820086967U CN 201196216 Y CN201196216 Y CN 201196216Y
- Authority
- CN
- China
- Prior art keywords
- bismuth
- free
- lead
- contained lead
- bimetallic bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y02T10/865—
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- Powder Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a bismuth-contained lead-free bimetallic bearing, which aims to provide a bismuth-contained lead-free bimetallic sliding bearing which has simple structure, excellent process inheritance, excellent lubrication performance, reasonable timber and does not contain harmful ingredient which is lead. A shaft sleeve with edge joints are wrapped and produced by a bimetal sheet which is sintered with a bronze powder layer on the surface of a steel plate, and the bismuth-contained lead-free bimetallic bearing is characterized in that the bronze powder layer is sintered by bismuth-contained lead-free bronze powder. The bismuth-contained lead-free bimetallic bearing cancels lead in an original leaded bimetallic bearing and replaces the lead through adding a certain amount of metal bismuth, the bimetallic bearing absolutely overcomes the defect of lead pollution, the service performance of the bearing is essentially constant, and the bismuth-contained lead-free bimetallic bearing can absolutely replace the leaded bimetallic bearing through testing. The bismuth-contained lead-free bimetallic bearing can be used for the process of mechanical products which are food and drug and the like, and has the advantages of excellent lubrication performance and excellent heat emission efficiency.
Description
Technical field
The utility model relates to a kind of sliding bearing, relates in particular to a kind of bismuth-contained lead-free bimetallic bearing.
Background technique
Bell metal is used widely as the antifriction metal material because its wear resistance is good, running-in characteristic is good, the good and anti-bonding property of thermal conductivity reaches well and the excellent adsorption of oil.Especially in composite material, that bell metal is powder sintered on steel plate, roll into axle sleeve again, become bimetal sliding bearing.And more or less contain plumbous composition in the at present used bell metal, and lead is a kind of harmful matter, it all can cause damage to environment and human body, so its use face begins to be restricted more and more.
The model utility content
The purpose of this utility model be to provide a kind of simple in structure, the technology inheritance is good, greasy property is good, with the material plumbous bismuth-contained lead-free bimetallic bearing that rationally and not contains harmful ingredients.
In order to reach above-mentioned requirements, the technological scheme that is adopted: be that the bimetal plate that is used in the surface of steel plate sintering and has bronze bisque rolls the axle sleeve that is processed into the band piece, it is characterized in that described bronze bisque is with bismuth-contained lead-free bronze powder sintering.
The bismuth-contained lead-free bimetallic bearing of making according to such scheme, it does not contain lead, because bismuth and plumbous all very approaching at many aspect of performances, and be harmless " green metal ", so the utility model replaces the lead metal in the former leaded bimetallic bearing with bismuth, such bimetallic bearing has just overcome the defective of lead pollution, and the usability of bearing is constant substantially, can replace leaded bimetallic bearing fully after tested.This product can be used in engineering goods such as food, medicine processing, has that greasy property is good, the advantage of good heat dissipation effect.
Description of drawings
Fig. 1 is the structural drawing of the bismuth-contained lead-free bimetallic bearing sheet material in band rhombus oil cave;
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1;
Fig. 3 is the plan view of bismuth-contained lead-free bimetallic bearing;
Fig. 4 is the plan view of Fig. 3.
Wherein: 1, steel plate; 2, bronze bisque; 3, oily cave; 4, opening; 5, internal surface.
Embodiment
Below in conjunction with accompanying drawing the utility model content is further described.
Fig. 1, Fig. 2 are the structural drawing of bismuth-contained lead-free bimetallic bearing sheet material.It is the bimetal plate with the bronze bisque 2 of bismuth-contained lead-free bronze powder sintering on steel plate 1 surface, and described bronze bisque 2 can be used bismuth-contained lead-free tin bronze powder such as CuSn10Bi7.5 powder or bismuth-contained lead-free phosphor bronze powder or bismuth-contained lead-free aluminum bronze powder.On the surface of bimetal plate bronze bisque 2, be suppressed with and be recessed into interrupted rhombus blind hole of arranging down as oily cave 3, again according to the specification blanking of sliding bearing, bronze bisque 2 is rolled axle sleeve at the sliding bearing internal surface, the bismuth-contained lead-free bimetal sliding bearing that the spirality that is processed to form opening 4 is intermittently arranged rhombus oil cave 3 as shown in Figure 3, Figure 4, wherein the gross area in rhombus oil cave 3 be the bismuth-contained lead-free bimetal sliding bearing internal surface 5 gross areas 20% to 35% between.The processing that also can oppositely roll, be shaped according to usage requirement makes bronze bisque 2 roll outer surface at sliding bearing, the gross area in rhombus oil cave 3 be total outer surface area 20% to 35% between.The shape in used oil cave 3 can also be a circle etc.Certainly, described bismuth-contained lead-free bronze powder also is not precluded within and wherein contains the lead metal element that is no more than 0.2% microimpurity.In the bismuth-contained lead-free bronze powder, also can make the bismuth-contained lead-free bimetallic bearing of making have optimum performance more targetedly by adjusting the content of bismuth metal in different use occasions.
Claims (7)
1. bismuth-contained lead-free bimetallic bearing is to be used in the surface of steel plate sintering to have the bimetal plate of bronze bisque to roll the axle sleeve that is processed into the band piece, it is characterized in that described bronze bisque is with bismuth-contained lead-free bronze powder sintering.
2. bismuth-contained lead-free bimetallic bearing according to claim 1 is characterized in that being suppressed with equally distributed recessed oily cave on the bronze powder laminar surface of described axle sleeve inner circumference or excircle.
3. bismuth-contained lead-free bimetallic bearing according to claim 2 is characterized in that described oily cave is rhombus or circle.
4. bismuth-contained lead-free bimetallic bearing according to claim 1 is characterized in that described bismuth-contained lead-free bronze powder is meant bismuth-contained lead-free tin bronze powder or bismuth-contained lead-free phosphor bronze powder or bismuth-contained lead-free aluminum bronze powder.
5. bismuth-contained lead-free bimetallic bearing according to claim 1 is characterized in that described bismuth-contained lead-free tin bronze powder is meant the CuSn10Bi7.5 powder.
6. bismuth-contained lead-free bimetallic bearing according to claim 2, the gross area that it is characterized in that described oily cave account for axle sleeve internal surface or total outer surface area 20% to 35% between.
7. bismuth-contained lead-free bimetallic bearing according to claim 2 is characterized in that described oily cave is scattered in interrupted helical pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200869676U CN201196216Y (en) | 2008-05-07 | 2008-05-07 | Bismuth-containing leadless bimetallic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200869676U CN201196216Y (en) | 2008-05-07 | 2008-05-07 | Bismuth-containing leadless bimetallic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196216Y true CN201196216Y (en) | 2009-02-18 |
Family
ID=40415852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200869676U Expired - Lifetime CN201196216Y (en) | 2008-05-07 | 2008-05-07 | Bismuth-containing leadless bimetallic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196216Y (en) |
-
2008
- 2008-05-07 CN CNU2008200869676U patent/CN201196216Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG SF OILLESS BEARING CO., LTD. Free format text: FORMER NAME: SHUANGFEI OILLESS BEARING CO., LTD., ZHEJIANG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314115, No. 2, Fan Jing Road, dry kiln town, Jiashan County, Zhejiang Patentee after: Zhejiang SF Oilless Bearing Co., Ltd. Address before: 314115, No. 2, Fan Jing Road, dry kiln town, Jiashan County, Zhejiang Patentee before: Shuangfei Non-Oil Bearing Co., Ltd., Zhejiang Prov. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090218 |
|
| CX01 | Expiry of patent term |