CN1024367C - Combined plain bearing - Google Patents
Combined plain bearing Download PDFInfo
- Publication number
- CN1024367C CN1024367C CN 90106267 CN90106267A CN1024367C CN 1024367 C CN1024367 C CN 1024367C CN 90106267 CN90106267 CN 90106267 CN 90106267 A CN90106267 A CN 90106267A CN 1024367 C CN1024367 C CN 1024367C
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- China
- Prior art keywords
- watt
- tile fragment
- bearing
- alloy
- groove
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- Expired - Fee Related
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Abstract
The present invention relates to a composite sliding bearing. The present invention adopts a bearing alloy which has the characteristics of high strength, high rigidity and capability of being integrally cast into a bearing bush, etc., and utilizes the characteristics of the alloy to develop a novel sliding bearing. The composite sliding bearing has the structure that a plurality of trapezoidal grooves are cast in the inner surface of a bush back, and a bush is cast into trapezoidal blocks; the grooves and the blocks are combined into a whole after being processed. The present invention has the advantages of reasonable structure, simple technology, convenient assembly and disassembly, and particular suitability for a large bearing.
Description
The present invention relates to the structure of sliding bearing.
Traditional sliding bearing all is made up of watt back of the body and antifriction layer.Its structure is divided two classes substantially: a class is that inhomogeneous material is made composite strip by the method for calendering, then is processed into the bearing shell of different size.Its internal layer is an anti-friction alloy material, and skin is a low carbon steel plate.Mainly be used in the occasion that runs up.Another kind of is the casting composite bearing, and the Babbitt that is about to fusion is cast in watt back that is processed with crisscross dovetail groove and handles through complex surfaces.It requires the alloy and watt back of the body to combine on arc surface firmly, and is very close to each other.Shortcomings such as this two class bearing all has its process for machining and manufacturing complexity, difficulty is big, performance is low, working life is undesirable; And, making, transport, load and unload and changing watt-hour because of its structural feature, and all necessary overall operation, this brings many inconvenience to all kinds of heavily loaded large size bearings.
In CN86106628A number patent application document, a kind of sliding bearing with non-homogeneous antifriction layer is disclosed.The formation of the antifriction layer of this bearing, be on the internal surface of back sheet (i.e. watt back of the body), base layer by casting method cast one deck lead-bronze or palium, process some radially spaced or two groups of groove depressions that intersect on the base layer, then filling is the Babbitt metal of base with lead, tin, copper in depression, and this bearing still belongs to the casting composite bearing.Its alloy material and manufacturing process all do not have substantial variation, so the still difficult many shortcoming and defect that overcome the casting composite bearing.
Also have a GB2198486A number patent application document, disclosed technology is to inlay some ceramic blocks in the end of axle.The characteristics of this technology are the structures that changes axle, and its mosaic block is a stupalith.So its manufacturing and mosaic technology are the alloy abaculus principle difference is arranged.
The objective of the invention is at the above-mentioned state of the art, for the performance and the working life of improving the low-speed heave-load large size bearing, especially in order to overcome many key problem in technology and the great difficulty that traditional production technology produces in integral body manufacturing, transportation, in loading and unloading and change watt large-scale burden bearing, research provides a kind of materials single, the combined plain bearing that get the raw materials ready easily, technology is simple, transport and change a watt convenience, performance is good, the life-span is long.
Major technique solution of the present invention is, one leather conventional method previously, piece together the manufacturing process of abandoning traditional Babbitt metal material and Pasteur's bearing, adopt a kind of new bearing alloy material, and the tile fragment and watt back of the body be processed into standard measure, the brand new form that then is combined into one in advance.
Accompanying drawing 1 is watt back structure schematic representation of bearing of the present invention: the a.b.c among the figure is the alternative three kinds of groove design schemes of watt back.Wherein a does not have the stiffening rib groove between each groove, and b and c run through one or two stiffening rib grooves 2 respectively between each groove 1.Three kinds of schemes can be chosen any one kind of them according to the size of bearing and the reinforcement needs of load capacity.
The a.b.c of accompanying drawing 2 be respectively with Fig. 1 in the corresponding tile fragment design proposal of a.b.c.A among the figure is not with stiffening rib, and b and c have one or two stiffening ribs respectively in the both sides of tile fragment.
Accompanying drawing 3 is embodiments that watt back of the body of accompanying drawing 1a and accompanying drawing 2a and tile fragment make up mutually.
Following with reference to accompanying drawing, concrete implementation step of the present invention is elaborated.
1. on watt back of the body internal surface, be cast with groove 1.The form of groove 1 can be chosen any one kind of them from three kinds of structures of a.b.c of Fig. 1 according to the specification and the load size of bearing.
2. the ZL88109664.4-4 patented product bearing metal of selecting for use the inventor to provide is selected and the corresponding scheme of accompanying drawing 1a.b.c in three kinds of schemes of the a.b.c from accompanying drawing 2, makes trapezoidal alloy tile fragment.The quantity of tile fragment is corresponding mutually with the quantity of groove.
3. trapezoidal groove and trapezoidal alloy tile fragment are processed into standard measure respectively.
4. with each trapezoidal tile fragment, inlay successively in each groove that is assembled in watt back.
The quantity of above-mentioned tile fragment and groove, size and in the distribution situation of watt back is all calculated according to actual demand and is determined.
Compared with prior art, the present invention has following outstanding essential characteristics and significant progressive:
1. whole bearing is to inlay a kind of combined structure of combination by being processed into the standard-sized watt of back of the body and tile fragment. This by the standard component mosaic combined structure, not only simplify the manufacturing process of large size bearing, and changed watt-hour, only need at the scene old tile fragment is pulled down, directly change new tile fragment, and carry out slightly scraping and can put into operation. This watt method of changing has fundamentally overcome the many technical barrier of large-scale burden bearing in the links such as dismounting, transportation, replacing and assembling, thereby provides great convenience to the user.
2. the material of alloy tile fragment is documented in the applicant's ZL88109664.4-4 application for a patent for invention file.It has light weight, characteristics such as wear-resisting, stainless, inexpensive and surmounts the excellent properties of Babbitt.Its main performance index is: tensile strength (MPa) 274-323, hardness (Hb) 90-110, friction factor under the lubricating condition (μ) 0.007, linear expansion coeffcient (10
-6/ ℃) 23.Therefore, not only improve the usability and the life-span of bearing effectively, also can make the serviceability temperature scope of bearing be loosened to 150 ℃ from＜60 ℃.
3. bearing structure of the present invention is immersed in the lubricant oil with can making shaft portion, has improved the lubricating condition of bearing widely.
4. a tile fragment and watt combined method of back of the body groove can be selected any one according to the specification of bearing and the needs of load capacity, so that strengthen the composite structure intensity of the tile fragment and watt back of the body from three kinds of schemes.
Claims (4)
1, a kind of by watt back of the body and an alloy watt sliding bearing of forming.Traditional structure is by watt back of the body and be cast in watt composite structured that babbit layer on the back of the body internal surface forms; Sliding bearing of the present invention is characterized in that by watt back of the body and is embedded in watt the combined structure that the alloy tile fragment of back of the body inner face is formed, wherein:
(1) has axial trapezoidal groove [1] on the internal surface of watt back of the body;
(2) tile fragment is the alloy tile fragment, and its quantity, shape are all identical with watt groove [1] of back of the body internal surface;
(3) trapezoidal groove of tile fragment and watt back possess can corresponding combination standard measure.
2, according to the said sliding bearing of claim 1, it is characterized in that said alloy tile fragment, be to be the rare-earth bearing alloy manufacturing moulding of main body in order to aluminium zinc.
3, according to claim 1 or 2 said sliding bearings, it is characterized in that said rare-earth bearing alloy based on aluminium zinc, has following performance characteristics: tensile strength (MPa) 274-323, hardness (HB) 90-110, friction factor under the lubricating condition (μ) 0.007, linear expansion coeffcient (10
-6/ ℃) 23.
4, according to claim 1 or 2 said sliding bearings, it is characterized in that the mosaic mode of said tile fragment in watt back of the body groove, three kinds of alternative plans are arranged:
A. be not with stiffening rib between each tile fragment;
B. have a stiffening rib [2] between each tile fragment;
C. have two stiffening ribs [2] between each tile fragment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106267 CN1024367C (en) | 1988-10-15 | 1988-10-15 | Combined plain bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106267 CN1024367C (en) | 1988-10-15 | 1988-10-15 | Combined plain bearing |
Related Parent Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88109664 Division | 1988-10-15 | ||
| CN 88109664 Division CN1012080B (en) | 1988-10-15 | 1988-10-15 | Sliding bearing alloy material and structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049546A CN1049546A (en) | 1991-02-27 |
| CN1024367C true CN1024367C (en) | 1994-04-27 |
Family
ID=4879913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106267 Expired - Fee Related CN1024367C (en) | 1988-10-15 | 1988-10-15 | Combined plain bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1024367C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0185613B1 (en) * | 1995-05-27 | 1999-05-15 | 김광호 | Dialing method of mobile wireless telephone |
| CN104074869A (en) * | 2014-06-28 | 2014-10-01 | 山东大丰轴瓦有限公司 | Bearing bush for swelling and breaking connecting rod of large power engine |
-
1988
- 1988-10-15 CN CN 90106267 patent/CN1024367C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1049546A (en) | 1991-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |