CN100451328C - Method for increasing wear resistance of entrance bucket shaft head - Google Patents

Method for increasing wear resistance of entrance bucket shaft head Download PDF

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Publication number
CN100451328C
CN100451328C CNB2007100612046A CN200710061204A CN100451328C CN 100451328 C CN100451328 C CN 100451328C CN B2007100612046 A CNB2007100612046 A CN B2007100612046A CN 200710061204 A CN200710061204 A CN 200710061204A CN 100451328 C CN100451328 C CN 100451328C
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CN
China
Prior art keywords
shaft head
axle sleeve
bucket shaft
entrance bucket
hot charging
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
Application number
CNB2007100612046A
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Chinese (zh)
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CN101126365A (en
Inventor
刘有利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
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Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
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Filing date
Publication date
Application filed by Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd filed Critical Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Priority to CNB2007100612046A priority Critical patent/CN100451328C/en
Publication of CN101126365A publication Critical patent/CN101126365A/en
Application granted granted Critical
Publication of CN100451328C publication Critical patent/CN100451328C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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Abstract

The invention relates to a method to improve the wearing resistance of a guide vane spindle nose, which is characterized in that a shaft sleeve made of stainless steel is thermally fixed on the excircle of the guide vane spindle nose, then the two ends of the shaft sleeve are welded on a guide vane stem and then is machined to the required size. The invention improves the product quality, reduces the cost and shortens the production cycle.

Description

Improve the method for wear resistance of entrance bucket shaft head
Technical field
The present invention relates to the stator in the hydraulic turbine generator water distributor, particularly a kind of method that improves wear resistance of entrance bucket shaft head.
Background technique
The water guide assembling is a big portion cover in the water turbine.It mainly comprises stator; Several big key components such as inside and outside ring sparger and control ring and pressure ring.Stator is an one.It is installed between the inside and outside ring sparger, in 16 of weeks, evenly distributes.During unit operation, the flow of the folding of stator control water, entrance bucket shaft head is worn easily.Therefore for improving its wear resistance, the outer stainless steel that adopts of entrance bucket shaft head.The entrance bucket shaft head cylindrical requires shop weldering stainless steel material at present, increases its wear resistance.And stator generally is a Cast Steel, and weldability is poor, and weldering amount in shop is big again, causes frequently to occur weld defects in the course of working, carries out repair welding and reprocessing again repeatedly.Cause a lot of repetitive operation for like this machining and welder, take lathe repeatedly, cause the waste of human and material resources, therefore the process-cycle also draws oversizely.
Summary of the invention
The present invention can improve the quality of products, reduce production costs, shorten the method for the raising wear resistance of entrance bucket shaft head of manufacture cycle for the technical problem that exists in the solution known technology provides a kind of.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of method that improves wear resistance of entrance bucket shaft head, the axle sleeve that hot charging is made with stainless steel on the entrance bucket shaft head cylindrical, again with the two ends boxing of described axle sleeve on guide vane teunnion, then be machined into final size; The step of the described axle sleeve that hot charging is made with stainless steel on the entrance bucket shaft head cylindrical is: at first described axle sleeve single-piece work is survived, cylindrical stays the Vehicle Processing amount, in the hole stay the hot charging amount, treat that the processing of entrance bucket shaft head encapsulation place survives laggard capable hot charging, earlier axle sleeve is heated to uniform temperature, make that the hole swells in the axle sleeve, it is sleeved on the axle, the cooling rear axle housing is held tightly on axle.
Advantage and good effect that the present invention has are: the present invention is because adopted the axle sleeve that hot charging is made with stainless steel on the entrance bucket shaft head cylindrical, again described axle sleeve two ends are welded on the guide vane teunnion, then be machined into the method for final size, improved quality of product, reduce cost, shortened the manufacture cycle.
Description of drawings
Fig. 1 is the structural representation behind the related stator hot charging of the present invention axle sleeve.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, be described in detail as follows:
See also Fig. 1, Fig. 1 is the structural representation behind the related stator hot charging of the present invention axle sleeve, according to designing requirement, earlier stainless steel sleeve 1 single-piece work is survived, cylindrical stays the Vehicle Processing amount, in the hole stay the hot charging amount, treat that entrance bucket shaft head encapsulation place processing survives laggard capable hot charging, so-called hot charging promptly heats stainless steel sleeve 1, makes that the hole swells in the stainless steel axle sleeve, approximately to 600 degree, take out, fast it is sleeved on the spindle nose, hold tightly naturally the cooling back, again with the two ends boxing of stainless steel axle sleeve on spindle nose, last whole finish turning survives.
The present invention is welded on described axle sleeve two ends on the guide vane teunnion because adopted the axle sleeve that hot charging is made with stainless steel on the entrance bucket shaft head cylindrical again, then is machined into the method for final size, has improved quality of product, has reduced cost, has shortened the manufacture cycle.

Claims (1)

1. method that improves wear resistance of entrance bucket shaft head is characterized in that: the axle sleeve that hot charging is made with stainless steel on the entrance bucket shaft head cylindrical, again with the two ends boxing of described axle sleeve on guide vane teunnion, then be machined into final size; The step of the described axle sleeve that hot charging is made with stainless steel on the entrance bucket shaft head cylindrical is: at first described axle sleeve single-piece work is survived, cylindrical stays the Vehicle Processing amount, in the hole stay the hot charging amount, treat that the processing of entrance bucket shaft head encapsulation place survives laggard capable hot charging, earlier axle sleeve is heated to uniform temperature, make that the hole swells in the axle sleeve, it is sleeved on the axle, the cooling rear axle housing is held tightly on axle.
CNB2007100612046A 2007-09-27 2007-09-27 Method for increasing wear resistance of entrance bucket shaft head Expired - Fee Related CN100451328C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100612046A CN100451328C (en) 2007-09-27 2007-09-27 Method for increasing wear resistance of entrance bucket shaft head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100612046A CN100451328C (en) 2007-09-27 2007-09-27 Method for increasing wear resistance of entrance bucket shaft head

Publications (2)

Publication Number Publication Date
CN101126365A CN101126365A (en) 2008-02-20
CN100451328C true CN100451328C (en) 2009-01-14

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ID=39094473

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007100612046A Expired - Fee Related CN100451328C (en) 2007-09-27 2007-09-27 Method for increasing wear resistance of entrance bucket shaft head

Country Status (1)

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CN (1) CN100451328C (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1040658A (en) * 1989-03-11 1990-03-21 杜同水轮机研究所 The guide vanes of water turbine of row posture shaped as frame structure
CN2204862Y (en) * 1994-06-15 1995-08-09 李金洲 Sealed vane shaft supporting sleeve of water wheel machine
CN2210261Y (en) * 1994-03-21 1995-10-18 涂建炎 Wear-resistant guide blade structure of water turbine
JPH0835476A (en) * 1994-07-27 1996-02-06 Hitachi Ltd Guide vane shaft sealing device for hydraulic machinery
CN1163348A (en) * 1996-01-26 1997-10-29 株式会社日立制作所 Water conservancy machinery
CN2866887Y (en) * 2005-12-15 2007-02-07 天津市天发重型水电设备制造有限公司 Water turbine guiding water device
JP2007077872A (en) * 2005-09-14 2007-03-29 Hitachi Ltd Hydraulic machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1040658A (en) * 1989-03-11 1990-03-21 杜同水轮机研究所 The guide vanes of water turbine of row posture shaped as frame structure
CN2210261Y (en) * 1994-03-21 1995-10-18 涂建炎 Wear-resistant guide blade structure of water turbine
CN2204862Y (en) * 1994-06-15 1995-08-09 李金洲 Sealed vane shaft supporting sleeve of water wheel machine
JPH0835476A (en) * 1994-07-27 1996-02-06 Hitachi Ltd Guide vane shaft sealing device for hydraulic machinery
CN1163348A (en) * 1996-01-26 1997-10-29 株式会社日立制作所 Water conservancy machinery
JP2007077872A (en) * 2005-09-14 2007-03-29 Hitachi Ltd Hydraulic machine
CN2866887Y (en) * 2005-12-15 2007-02-07 天津市天发重型水电设备制造有限公司 Water turbine guiding water device

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Publication number Publication date
CN101126365A (en) 2008-02-20

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Granted publication date: 20090114

Termination date: 20130927