CN202451604U - Improved bearing bush specially for racing car engine - Google Patents
Improved bearing bush specially for racing car engine Download PDFInfo
- Publication number
- CN202451604U CN202451604U CN2012200193655U CN201220019365U CN202451604U CN 202451604 U CN202451604 U CN 202451604U CN 2012200193655 U CN2012200193655 U CN 2012200193655U CN 201220019365 U CN201220019365 U CN 201220019365U CN 202451604 U CN202451604 U CN 202451604U
- Authority
- CN
- China
- Prior art keywords
- bearing shell
- layer
- special
- steel back
- copper
- 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 - Fee Related
Links
- 239000010949 copper Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 241000357293 Leptobrama muelleri Species 0.000 claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000978 Pb alloy Inorganic materials 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 241000500881 Lepisma Species 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910002058 ternary alloy Inorganic materials 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 206010025482 malaise Diseases 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 2
- 229910001325 element alloy Inorganic materials 0.000 abstract 2
- 238000002955 isolation Methods 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Images
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses an improved bearing bush specially for a racing car engine. The improved bearing bush comprises a cambered sheet type steel back layer, a copper and lead alloy layer, a nickel isolation layer and a lead, tin and copper three-element alloy electroplated layer, wherein the copper and lead alloy layer, the nickel isolation layer and the lead, tin and copper three-element alloy electroplated layer are sequentially arranged on the cambered concave surface of the steel back layer from bottom to top and matched with the shape of the steel back layer. The bearing capacity, the fatigue strength, the abrasion resistance and the corrosion resistance of the bearing bush are effectively improved, and the service life of the bearing bush is prolonged.
Description
Technical field
The utility model relates to a kind of bearing shell, relates in particular to the special-purpose modified model bearing shell of a kind of racing engine.
Background technique
Bearing shell is sliding bearing and the part that is coupling and touches, and existing bearing shell is generally processed with high-abrasive materials such as bronze, antifriction alloys, under special circumstances, also can process with timber, plastics or rubber, is shaped as the semi-cylindrical of watt shape.During sliding bearing work, require to have the very thin oil film lubricate of one deck between bearing shell and the rotating shaft.If because insufficient lubrication rubs with regard to existing directly between bearing shell and the rotating shaft, the friction meeting produces very high temperature, special high-temperature alloy material is processed though bearing shell is, the high temperature that the generation direct friction produces is still sufficient in it is burnt out.Bearing shell also possibly factor cause tile kilning because load is excessive, temperature is too high, there is impurity in lubricant oil or viscosity is unusual etc., and sliding bearing has just damaged behind the tile kilning.And the bearing shell that is used for racing engine is all the more so; Therefore need a kind of have bigger bearing capacity and fatigue strength; The bearing shell that should have good seizure resistance, letting property of embedding, compliance, anti-corrosion property and compressive strength simultaneously is to satisfy the specific (special) requirements of racing engine to bearing shell.
The model utility content
The purpose of the utility model provides the special-purpose modified model bearing shell of a kind of racing engine, can not satisfy the needed problem with bigger bearing capacity and fatigue strength and corrosion resistance, bearing shell that wear resistance is high of racing engine with the technical requirements that solves the existing technology intermediate bushing.
For achieving the above object, the technological scheme that the utility model adopts is:
The special-purpose modified model bearing shell of a kind of racing engine; It is characterized in that: the steel back layer that includes the arc sheet; And the copper lead alloy layer, nickel separation layer, the slicker solder copper ternary alloy electrodeposited coating that are successively set on steel back layer arc-shaped concave place and steel back layer form fit from bottom to up; Also be provided with oil groove on the said bearing shell inwall, oil groove is provided with oilhole.
Said steel back layer position carbon steel backing layer, the material model is SAE1010, hardness is 160-210HB; Said copper lead alloy layer material model is E24-2, and hardness is 75-80HB.
Said slicker solder copper ternary alloy electrodeposited coating is controlled in the 0.004mm in plating ternary anterior wall thickness tolerance, and roughness is controlled in the Ra0.5 after the right boring; Wall thickness tolerance is controlled in the 0.008mm after electroplating ternary.
Said bearing shell cooperates cam journal to use, and is provided with oil clearance between the cam journal, and said oil clearance thickness is 0.01mm-0.03mm.
Measure eccentric thickness point position and close the minimum 0.12mm-0.14mm of being of bearing shell degree.
Said bearing shell end face internal diameter chamfering is enlarged to 1.0*20 ° ± 2 °, and minimum width is 0.75mm-0.85mm after the end face chamfering.
The beneficial effect of the utility model is:
The special-purpose modified model bearing shell of the racing engine that the utility model provided; Adopt steel back layer, copper lead alloy layer, nickel separation layer, slicker solder copper plating ternary electrodeposited coating structure and wear-resisting and corrosion resistant material; Improved effectively bearing shell carrying can, fatigue strength and wear resistance and corrosion resistance, prolonged working life of bearing shell.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the utility model.
Embodiment
As shown in Figure 1; The utility model includes the steel back layer 4 of arc sheet; And the copper lead alloy layer 3, nickel separation layer 2, the slicker solder copper ternary alloy electrodeposited coating 1 that are successively set on steel back layer 4 arc-shaped concave places and steel back layer 4 form fit from bottom to up; Also be provided with oil groove 5 on the bearing shell inwall, oil groove 5 is provided with oilhole 6.
4 carbon steel backing layers of steel back layer, the material model is SAE1010, hardness is 160-210HB; Copper lead alloy layer 3 material model are E24-2, and hardness is 75-80HB.Add man-hour in manufacturing, copper lead alloy layer 3 reduced thickness are avoided alloy-layer internal modification behind the o ing, increase the bearing capacity of bearing shell.The end face chamfer dimesion is optimized, and bearing shell end face internal diameter chamfering is enlarged to 1.0*20 ° ± 2 °, and minimum width is 0.75mm-0.85mm after the end face chamfering, and the characteristics in conjunction with racing engine V8 goes up the V10 h type engine h can prevent two frictions between the connecting rod effectively.Slicker solder copper ternary alloy electrodeposited coating 1 is controlled in the 0.004mm in plating ternary anterior wall thickness tolerance, and roughness is controlled in the Ra0.5 after the right boring; Wall thickness tolerance is controlled in the 0.008mm after electroplating ternary, makes electrodeposited coating more even.Elder generation's electronickelling separation layer 2 when electroplating, thickness is 0.001mm-0.002mm, and then to electroplate P76 high-copper (3-5%) ternary be slicker solder copper ternary alloy electrodeposited coating 1, thickness is 0.013mm.Be provided with oil clearance between bearing shell and the cam journal, said oil clearance thickness is 0.01mm-0.03mm.Measure the minimum 0.12mm-0.14mm of being of eccentric thickness point position axis tilt sickness.
Claims (6)
1. the special-purpose modified model bearing shell of a racing engine; It is characterized in that: the steel back layer that includes the arc sheet; And the copper lead alloy layer, nickel separation layer, the slicker solder copper ternary alloy electrodeposited coating that are successively set on steel back layer arc-shaped concave place and steel back layer form fit from bottom to up; Also be provided with oil groove on the said bearing shell inwall, oil groove is provided with oilhole.
2. the special-purpose modified model bearing shell of racing engine according to claim 1 is characterized in that: said steel back layer position carbon steel backing layer, and the material model is SAE1010, hardness is 160-210HB; Said copper lead alloy layer material model is E24-2, and hardness is 75-80HB.
3. the special-purpose modified model bearing shell of racing engine according to claim 1 is characterized in that: said slicker solder copper ternary alloy electrodeposited coating is controlled in the 0.004mm in plating ternary anterior wall thickness tolerance, and roughness is controlled in the Ra0.5 after the right boring; Wall thickness tolerance is controlled in the 0.008mm after electroplating ternary.
4. the special-purpose modified model bearing shell of racing engine according to claim 1 is characterized in that: said bearing shell cooperates cam journal to use, and is provided with oil clearance between the cam journal, and said oil clearance thickness is 0.01mm-0.03mm.
5. the special-purpose modified model bearing shell of racing engine according to claim 1 is characterized in that: measure the minimum 0.12mm-0.14mm of being of eccentric thickness point position axis tilt sickness.
6. the special-purpose modified model bearing shell of racing engine according to claim 1, it is characterized in that: said bearing shell end face internal diameter chamfering is enlarged to 1.0*20 ° ± 2 °, and minimum width is 0.75mm-0.85mm after the end face chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200193655U CN202451604U (en) | 2012-01-17 | 2012-01-17 | Improved bearing bush specially for racing car engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200193655U CN202451604U (en) | 2012-01-17 | 2012-01-17 | Improved bearing bush specially for racing car engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451604U true CN202451604U (en) | 2012-09-26 |
Family
ID=46867470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200193655U Expired - Fee Related CN202451604U (en) | 2012-01-17 | 2012-01-17 | Improved bearing bush specially for racing car engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537064A (en) * | 2012-01-17 | 2012-07-04 | 芜湖美达机电实业有限公司 | Improved special bearing bush for racing car engine |
| CN109057962A (en) * | 2018-08-16 | 2018-12-21 | 重庆卓力标准件制造有限公司 | A kind of crankshaft of motorcycle connecting rod ASSY |
-
2012
- 2012-01-17 CN CN2012200193655U patent/CN202451604U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537064A (en) * | 2012-01-17 | 2012-07-04 | 芜湖美达机电实业有限公司 | Improved special bearing bush for racing car engine |
| CN109057962A (en) * | 2018-08-16 | 2018-12-21 | 重庆卓力标准件制造有限公司 | A kind of crankshaft of motorcycle connecting rod ASSY |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |