CN1027496C - Blank technology of steel pipe type radial thrust bearing - Google Patents
Blank technology of steel pipe type radial thrust bearing Download PDFInfo
- Publication number
- CN1027496C CN1027496C CN 92104179 CN92104179A CN1027496C CN 1027496 C CN1027496 C CN 1027496C CN 92104179 CN92104179 CN 92104179 CN 92104179 A CN92104179 A CN 92104179A CN 1027496 C CN1027496 C CN 1027496C
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- China
- Prior art keywords
- blank
- shoulder
- steel
- steel backing
- steel pipe
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- Expired - Fee Related
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- Sliding-Contact Bearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to a technology for processing blanks of thrust-journal plain bearings, which is particularly to suitable for main bearing blanks of internal combustion engines. The technology comprises that a segment of a steel pipe sectional material is cut; the caliber of one end of the steel pipe is punched by an expanding die; the expanded pipe end is punched twice by a forming die; a steel back blank is turned from an outer circle and a shoulder outer circle; an inner bore of the steel back blank is bored, and an end surface of the shoulder is turned; a bearing alloy layer is cast through a centrifugal casting method, wherein the steel back is preheated; the steel back, a special front blanking cover mould, a special rear blanking cover mould are fixed on rotating shafts for rotating; a high-temperature liquid state bearing alloy layer is cast, and the blank of the thrust-journal plain bearing is formed after the solidification. The present invention has the advantages of low cost of raw materials, no cracks or welding seams, and little material consumption.
Description
The present invention relates to a kind of thrust-journal plain bearing blank processing method, especially be applicable to the internal combustion engine main bearing blank.
As everyone knows, in order to satisfy internal combustion engine full circle base bearing and end face is wear-resisting and remainder has the requirement of toughness preferably, the internal layer of bearing and an end face adopt babbit or acid bronze alloy or acieral usually, and remainder adopts mild steel.At present, traditional internal combustion engine full circle base bearing blank processing method roughly can be generalized into three kinds.
As follows below in conjunction with description of drawings:
Fig. 1 is the welding base bearing blank of prior art
Fig. 2 is the forging formula base bearing blank of prior art
Fig. 3 be prior art roll the base bearing blank
One, two weld parts become blank (as shown in Figure 1)
A thin-wall bimetal band is rolled the formation thrust ring, another piece thin-wall bimetal alloy band is rolled the formation bearing body, connect into then the blank of base bearing with friction welding. The blank that this mode is processed exists weld seam, manufacturing procedure many (11 procedures), and in addition, it is very high that special thin-wall bimetal closes the price of multi-band own.
Two, forged steel back cast alloy-layer (as shown in Figure 2)
Steel are forged into band shoulder steel backing, process machined steel backing inner face and shoulder end face, then centrifugal casting alloy-layer.Adopt the blank of this method processing, have that manufacturing procedure is many, allowance big, a defective of forging cost height and production environment difference.
Three, the rolling bearing body strikes out blank (as shown in Figure 3)
The thin-wall bimetal roll coil of strip is made bearing body, then strike out thrust ring.Adopt the blank of this method processing, the utilization rate of raw materials height, the blank size precision height still, rolls interface and radial cracking occurs, and in addition, the price of thin-wall bimetal alloy band own is also high.
The objective of the invention is to provide a kind of steel pipe type radial thrust bearing blank processing method, make steel backing with steel pipe, under blanking cover, back blanking cover mould cooperate before special-purpose, the method for centrifugal casting bearing alloy layer, its processing method is simplified, raw materials consumption is few, the price of while raw material own is also low.
The object of the present invention is achieved like this: bearing blank process steps of the present invention is as follows:
One, in accordance with regulations length dimension, cut one section steel pipe section bar.
Two, with a punching press of flaring die, expansion steel pipe one port footpath.
Three,, make extended bore become the steel backing blank of band shoulder with finishing die punching press once more.
Four, the cylindrical of turning steel backing blank and shoulder cylindrical.
Five, the endoporus of boring steel backing blank, the shoulder of turning simultaneously end face process shoulder thickness and the steel backing width of being with shoulder.
Six, centrifugal casting bearing alloy layer.
1, heats steel backing in advance
2, the steel backing of preheating and special-purpose preceding blanking cover, back blanking cover mould are fixed in the rotating shaft and rotate.Wherein preceding blanking cover is the cold stamping sheet metal thrust steel ring with outer ring section, outer convex, trapezoidal annular groove and interstitial hole.
3, cast high-temperature liquid state bearing alloy layer, then swash water cooling, form the radial-thrust bearing blank.
Owing to adopt above-mentioned processing method, the cost of raw material is low, structure flawless and weld seam again, has simplified processing method simultaneously, has reduced raw-material consumption.
The present invention is further described below in conjunction with drawings and Examples.
Fig. 4 is the steel tube profile blanking figure of embodiments of the invention.
Fig. 5 is the steel tube flaring figure of embodiments of the invention.
Fig. 6 is the steel tube flaring shaping figure of embodiments of the invention.
Fig. 7 is the processing excircles and the outer circle diagram of shoulder of embodiments of the invention.
Fig. 8 is the machining hole and the shoulder end view drawing of embodiments of the invention.
Fig. 9 is the steel backing blank and the forward and backward blanking cover installation diagram of embodiments of the invention.
Figure 10 is the diesel engine main bearing blank drawing of embodiments of the invention.
Embodiments of the invention are X195 diesel engine main bearing blank processing methods.
Its process steps is as follows:
One, chooses steel pipe section bar D
1=φ 80 * 5(millimeter) as the raw material of steel backing, the pipe cutting machine blanking guarantees length dimension H
1=56 ± 1(millimeter), (as shown in Figure 4).
Two, use a punching press of flaring die on the punch press, enlarge the bore of an end, make an end D
1Expand D to
2=φ 98(millimeter) (as shown in the figure).
Three, use finishing die on punch press, punching press once more makes D
2Become D3=φ 102 ± 0.05(millimeter), length dimension H
1Become H
2The steel backing blank (as shown in Figure 6) of band shoulder=45-0.50(millimeter).
Four, the cylindrical of rough turn steel backing blank and shoulder cylindrical on engine lathe make D
1Be processed into D
4=φ 79.5-0.12(millimeter), D3 is processed into D
5=100-0.2(millimeter) (as shown in Figure 7).
Five, boring endoporus d on engine lathe
1=φ 70(millimeter), the shoulder of turning simultaneously end face, the thick h of shoulder
1=4(millimeter), the long H of steel backing blank
2Become H
3=44+0.10(millimeter) (as shown in Figure 8).
Six, at centrifuge top casting bearing alloy layer (acid bronze alloy)
1, preheating steel backing temperature reaches 1020～1050 ℃
2, the steel backing blank is clamped on the centrifuge, adorns back blanking cover 2 as mould (as shown in Figure 9) at the special-purpose preceding blanking cover 1 of steel backing blank shoulder end face dress, the other end.Blanking cover 1 and back blanking cover 2 rotate on centrifuge synchronously before the steel backing blank.
3, the acid bronze alloy pouring temperature is 1020～1100 ℃, and the cast back began to swash water (cooling water pressure 0.35MPa) in 2～3 seconds.Form the acid bronze alloy inner diameter d
2=φ 65(millimeter), thrust ring thickness h
2=7(millimeter) X195 diesel engine main bearing blank (as shown in figure 10).
Wherein blanking cover 1 is the thrust steel ring structure of cold stamping sheet metal (thick 0.3 millimeter) with outer ring section 1A, outer convex 1B, trapezoidal annular groove 1C and interstitial hole 1D before the particular manufacturing craft, outer ring section 1A is used to be supported between the shoulder end of the supporting of rotation and steel backing, outer convex 1B is the cylindrical enclosure of projection laterally, be used to provide casting to form the thrust ring alloy-layer, trapezoidal annular groove 1C is recessed into trapezoidal shape to the inside, is used to reduce the alloy-layer (belong to and need be cut part) that thrust ring is connected with radial loop.Back blanking cover 2 is the thin circles of exotic material, is used to be supported between the no shoulder end of the support of rotation and steel backing.The high-temperature liquid state acid bronze alloy is cast in the inner chamber that preceding blanking cover 1, band shoulder steel backing and the back blanking cover 2 of rotation constitute, under the centrifugal action, liquid acid bronze alloy be filled into preceding blanking cover 1, band shoulder steel backing and after around blanking cover 2 walls, and the acid bronze alloy layer that condenses.
Claims (1)
- A kind of steel pipe type radial thrust bearing blank processing method, it is characterized in that: process steps comprises one, length dimension in accordance with regulations, cut one section steel pipe section bar, two, with a punching press of flaring die, enlarge steel pipe one port footpath, three, with finishing die punching press once more, make extended bore form the steel backing blank of band shoulder, four, the cylindrical of turning steel backing blank and shoulder cylindrical, five, the endoporus of boring steel backing blank, the shoulder of turning simultaneously end face, process the steel backing width of shoulder thickness and band shoulder, six, the centrifugal casting bearing alloy layer, 1, heat steel backing in advance, 2, the steel backing of preheating and special-purpose preceding blanking cover, back blanking cover mould is fixed in the rotating shaft and rotates, 3, cast high-temperature liquid state bearing alloy layer, then swash water cooling, form the radial-thrust bearing blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104179 CN1027496C (en) | 1992-06-09 | 1992-06-09 | Blank technology of steel pipe type radial thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104179 CN1027496C (en) | 1992-06-09 | 1992-06-09 | Blank technology of steel pipe type radial thrust bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069440A CN1069440A (en) | 1993-03-03 |
| CN1027496C true CN1027496C (en) | 1995-01-25 |
Family
ID=4940665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92104179 Expired - Fee Related CN1027496C (en) | 1992-06-09 | 1992-06-09 | Blank technology of steel pipe type radial thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027496C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290740A (en) * | 2015-11-24 | 2016-02-03 | 中山鑫辉精密技术股份有限公司 | Processing procedure of automobile seal cover |
| CN106763125A (en) * | 2017-01-23 | 2017-05-31 | 广西玉柴机器股份有限公司 | thrust bearing shell structure |
-
1992
- 1992-06-09 CN CN 92104179 patent/CN1027496C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1069440A (en) | 1993-03-03 |
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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 | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Zhongyuan I. C. Engine Fittings Factory, Henan Prov. Applicant before: Zhongyuan I. C. Engine Fittings Factory, Henan Prov. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHONGYUAN INTERNAL-COMBUSTION ENGINE FITTINGS FACTORY, HENAN PROV. TO: ZHONGYUAN INTERNAL-COMBUSTION ENGINE FITTINGS GENERAL FACTORY, HENAN PROV. |
|
| 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 |