CN101733638A - Method for machining combined stainless steel shaft bushing - Google Patents
Method for machining combined stainless steel shaft bushing Download PDFInfo
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- CN101733638A CN101733638A CN200910186655A CN200910186655A CN101733638A CN 101733638 A CN101733638 A CN 101733638A CN 200910186655 A CN200910186655 A CN 200910186655A CN 200910186655 A CN200910186655 A CN 200910186655A CN 101733638 A CN101733638 A CN 101733638A
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- shaft bushing
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Abstract
The invention relates to a method for machining a combined stainless steel shaft bushing. The method comprises the following steps: selecting a wearable and corrosion resistant stainless steel seamless steel tube, wherein the nominal bore diameter of the steel tube is equal to the diameter of a main shaft for setting the position of a shaft bushing; the outside diameter of the steel tube is equal to the summation of the design size of the shaft bushing and a turning margin; and the length of the steel tube is equal to the design width of the shaft bushing; drilling plug weld holes after subdividing the steel tube fifty-fifty to prepare two pieces of blanks; adhering the two pieces of the blanks to the set position of the shaft bushing of the main shaft, and welding the two pieces of the blanks and the shaft bushing of the main shaft together; fully welding each of welding seams and the plug weld hole by a stainless steel welding rod; and machining the excircle of the welded stainless steel shaft bushing blank to the design size and a tolerance Df7 on a lathe. The method ensures that the stainless steel shaft bushing is fastened and combined with the main shaft integrally, and has the advantages of solidity, firmness, simple and convenient machining process, high production efficiency and low cost.
Description
Technical field
The present invention relates to a kind of axle bush processing method, particularly a kind of method for machining combined stainless steel shaft bushing.
Background technology
The main shaft axle bush that is in the hydraulic turbine, steam turbine and the generator thereof of work under humidity or the sour environment should possess wear-resistant and corrosion resistant performance; The main shaft axle bush is between two high steps at its two ends, so can only be knockdown.Existing processing method comprises:
[1]. as shown in Figure 2: behind the fritter stainless-steel sheet 4 brill plug welding holes 3 with well cutting, wrap on the main shaft 1 by the spot welding mode, again that slit between each plate and the 3 usefulness stainless steel electrode built-up welding of plug welding hole is full, the wheeled litter cylindrical of getting on the bus at last is to design size.This method is not because corrosion resistant plate fits tightly with the main shaft cylindrical, and just line contact leaves more gap, weld crack or not prison welding take place easily, even corrosion resistant plate will come off in turning process, is difficult to guarantee crudy.
[2]. as shown in Figure 3: after the corrosion resistant plate that leaves allowance with thickness bends to semi arch stock 5 by special-purpose semi arch module, subdrilling plug welding hole 3, semicircle stock 5 with two bending formings closes up spot welding again, get on the bus a boring to the main shaft size, separate then, the semicircle stock 5 of two bending formings is wrapped on the main shaft 1, fill up each slit and plug welding hole 3 with stainless steel electrode, last turning is to design size.The deficiency of this method is: (a). need design, make particular manufacturing craft, input cost is higher; (b). the semicircle stock needs bending forming, boring, and is time-consuming, production efficiency is low; (c). the semicircle stock resilience of bending forming is big, causes largely and to lose circle, even behind the boring, its and main shaft still are difficult to fit tightly, and have the gap, and weld crack easily takes place, and causes that axle bush gets loose in the use, the initiation quality accident.
Summary of the invention
The purpose of this invention is to provide a kind of method for machining combined stainless steel shaft bushing, guarantee that stainless steel shaft bushing and main shaft seamlessly fit tightly, and are welded as a whole.Satisfy the main shaft axle bush that is in the hydraulic turbine, steam turbine and the generator thereof of work under humidity or the sour environment and should possess wear-resistant and corrosion resistant performance requirement,
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of method for machining combined stainless steel shaft bushing, and its processing step comprises:
[1] stainless-steel seamless pipe of selection wear-and corrosion-resistant, wherein the nominal bore diameter of steel pipe equals to set the main shaft diameter of axle bush position; The external diameter of steel pipe equals the axle bush design size and adds 2～6mm turning surplus again; The length of steel pipe equals the design width of axle bush; Behind double subdivision, bore the plug welding hole, the diameter in plug welding hole is 5～15 millimeters, and distribution density is 50X50-90X90; Prepare the two halves stock;
[2] the axle bush desired location of two halves stock and main shaft is fitted, and point welds, with stainless steel electrode that seam between the seam between the two halves stock and two halves stock two ends and the main shaft and plug welding eyelet welding is full then;
[3] it is smooth to weld the two ends weld grinding of good two halves stock, prepares the stainless steel shaft bushing blank;
[4] cylindrical of the stainless steel shaft bushing blank after will welding on the lathe is machined to design size and tolerance Df7.
The stainless-steel seamless pipe of described wear-and corrosion-resistant is a martensitic stain less steel 1Cr13 seamless steel pipe.
The invention has the beneficial effects as follows: method for machining combined stainless steel shaft bushing does not need the interior circle of processing stainless steel seamless steel pipe, and the steel pipe inwall just can not have the gap with main shaft and fits tightly; Be difficult for producing weld crack with the integrally welded back of main shaft, solid firm; And just do not need to heat-treat and can carry out turning processing with commonsense method, manufacturing procedure is simple and convenient, the production efficiency height, and cost is lower.But be complementary with the stainless-steel seamless pipe internal diameter and the external diameter of standard on the one hand when requiring the product design personnel to design the main shaft size, another side is considered the versatility of design as far as possible, and the use specification kind of unified stainless-steel seamless pipe is convenient to order.
Description of drawings
Fig. 1 welds the schematic diagram of processing axle bush after the present invention adopts the stainless-steel seamless pipe subdivision.
Fig. 2 is the schematic diagram that adopts stainless-steel sheet welding processing axle bush.
Fig. 3 adopts stainless-steel sheet to bend to the schematic diagram of semicircle back welding processing axle bush.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment is as shown in Figure 1: a kind of method for machining combined stainless steel shaft bushing, and its processing step comprises:
[1] select martensitic stain less steel 1Cr13 seamless steel pipe, wherein the nominal bore diameter of steel pipe equals to set the main shaft diameter of axle bush position; The external diameter of steel pipe equals the axle bush design size and adds 4mm turning surplus again; The length of steel pipe equals the design width of axle bush; Behind double subdivision, bore plug welding hole 3, the diameter in plug welding hole is the 8-10 millimeter, and distribution density is 70X70; Prepare two halves stock 2;
[2] the two halves stock 2 and the axle bush desired location of main shaft 1 are fitted, and point welds, with stainless steel electrode seam between the seam between the two halves stock 2 and two halves stock 2 two ends and the main shaft 1 and 3 welderings of plug welding hole are expired then;
[3] it is smooth to weld the two ends weld grinding of good two halves stock 2, prepares the stainless steel shaft bushing blank;
[4] cylindrical of the stainless steel shaft bushing blank after will welding on the lathe is machined to design size and tolerance Df7.
Claims (3)
1. method for machining combined stainless steel shaft bushing, its processing step comprises:
[1] stainless-steel seamless pipe of selection wear-and corrosion-resistant, wherein the nominal bore diameter of steel pipe equals to set the main shaft diameter of axle bush position; The external diameter of steel pipe equals the axle bush design size and adds 2～6mm turning surplus again; The length of steel pipe equals the design width of axle bush; Behind double subdivision, bore plug welding hole (3), prepare two halves stock (2);
[2] the axle bush desired location of two halves stock (2) and main shaft (1) is fitted, and point welds, with stainless steel electrode the seam between the seam between the two halves stock (2) and two halves stock (2) two ends and the main shaft (1) and plug welding hole (3) weldering are expired then;
[3] it is smooth to weld the two ends weld grinding of good two halves stock (2), prepares the stainless steel shaft bushing blank;
[4] cylindrical of the stainless steel shaft bushing blank after will welding on the lathe is machined to design size and tolerance Df7.
2. a kind of method for machining combined stainless steel shaft bushing according to claim 1 is characterized in that: the diameter in described plug welding hole is 5～15 millimeters, and distribution density is 50X50-90X90.
3. a kind of method for machining combined stainless steel shaft bushing according to claim 1 is characterized in that: the stainless-steel seamless pipe of described wear-and corrosion-resistant is a martensitic stain less steel 1Cr13 seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101866551A CN101733638B (en) | 2009-12-09 | 2009-12-09 | Method for machining combined stainless steel shaft bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101866551A CN101733638B (en) | 2009-12-09 | 2009-12-09 | Method for machining combined stainless steel shaft bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733638A true CN101733638A (en) | 2010-06-16 |
| CN101733638B CN101733638B (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101866551A Expired - Fee Related CN101733638B (en) | 2009-12-09 | 2009-12-09 | Method for machining combined stainless steel shaft bushing |
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| CN (1) | CN101733638B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133699A (en) * | 2011-03-03 | 2011-07-27 | 自贡市巨光硬面材料有限公司 | Manufacturing process for corrosion-resistant and wear-resistant steel pipe |
| CN103418984A (en) * | 2013-08-06 | 2013-12-04 | 杭州富春江水电设备有限公司 | Water turbine bearing gear abrasion repairing technology |
| CN103495190A (en) * | 2013-10-23 | 2014-01-08 | 山东新华医疗器械股份有限公司 | Novel energy-saving type sterilizer |
| CN112665786A (en) * | 2020-12-09 | 2021-04-16 | 内蒙古第一机械集团股份有限公司 | Pressure-bearing deformation control method for heavy-load fuel tank |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1558622A1 (en) * | 1988-07-06 | 1990-04-23 | В.М.Пестунов | Method of welding shaft-bushing pair |
| CN2567135Y (en) * | 2002-06-07 | 2003-08-20 | 张武松 | Lubricating oil structurein fork internal axle bushing of front forks of bicycle |
| CN2586844Y (en) * | 2002-10-23 | 2003-11-19 | 杨和平 | Built-up shaft liner |
-
2009
- 2009-12-09 CN CN2009101866551A patent/CN101733638B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133699A (en) * | 2011-03-03 | 2011-07-27 | 自贡市巨光硬面材料有限公司 | Manufacturing process for corrosion-resistant and wear-resistant steel pipe |
| CN103418984A (en) * | 2013-08-06 | 2013-12-04 | 杭州富春江水电设备有限公司 | Water turbine bearing gear abrasion repairing technology |
| CN103495190A (en) * | 2013-10-23 | 2014-01-08 | 山东新华医疗器械股份有限公司 | Novel energy-saving type sterilizer |
| CN112665786A (en) * | 2020-12-09 | 2021-04-16 | 内蒙古第一机械集团股份有限公司 | Pressure-bearing deformation control method for heavy-load fuel tank |
| CN112665786B (en) * | 2020-12-09 | 2023-10-03 | 内蒙古第一机械集团股份有限公司 | Control method for pressure-bearing deformation of heavy-load fuel tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101733638B (en) | 2011-06-15 |
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Granted publication date: 20110615 Termination date: 20131209 |