CN105729039A - Repair method used after wearing of shaft diameter/pore diameter - Google Patents
Repair method used after wearing of shaft diameter/pore diameter Download PDFInfo
- Publication number
- CN105729039A CN105729039A CN201610264561.1A CN201610264561A CN105729039A CN 105729039 A CN105729039 A CN 105729039A CN 201610264561 A CN201610264561 A CN 201610264561A CN 105729039 A CN105729039 A CN 105729039A
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- diameter
- axle
- aperture
- grinding
- abrasion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention relates to a repair method used after wearing of shaft diameter/pore diameter. The repair method includes: through analysis and calculation, spraying and re-machining parts which are worn already but still meet strength indexes to meet using requirements. By using the repair method, scrappage rate of a 35Cr2Ni4MoA material in a mechanical device due to wearing of the shaft diameter/the pore diameter can be lowered, cost is saved, and economic benefit is increased.
Description
Technical field
The present invention relates to the restorative procedure after a kind of diameter of axle/aperture service wear, the restorative procedure after especially a kind of 35Cr2Ni4MoA diameter of axle/aperture abrasion, it is possible to achieve shorten the repair cycle, save the purpose of cost.
Background technology
35Cr2Ni4MoA is a kind of relatively conventional structure steel material, is often processed into shaft hole series mating parts.Prolongation along with the working time, shaft hole series part inevitably makes the diameter of axle in cooperation and aperture wear and tear, make diameter of axle size reduce, aperture size increases, the fit clearance between parts is caused to increase, and then make it position and rotation precision decline, causing that whole machinery service behaviour declines, directly resulting in machinery time serious cannot normal operation.
In the repairing and revision of machinery, for avoiding the service behaviour of machinery to reduce, generally require the part rejection beyond the limit of wear and replace with new product part, causing the high cost repaired and overhaul.For being worth bigger part, this impact is especially apparent.
Summary of the invention
It is an object of the invention to provide the restorative procedure after a kind of diameter of axle/aperture abrasion, it is possible to reduce the scrappage of the diameter of axle of 35Cr2Ni4MoA material in machinery/aperture abrasion, save cost, increase economic efficiency.
Restorative procedure of the present invention comprises the following steps:
1, the part of the shaft hole matching of 35Cr2Ni4MoA material is decomposed；
2, respectively to the diameter of axle after parts depreciation, aperture measurement, and its actual value is recorded；
3, respectively computational analysis abrasion after the diameter of axle, aperture size whether can meet the intensity index of mechanical movement, if some part is unsatisfactory for, then scrapped, and join and make mate, if being all unsatisfactory for, then by part rejection, if being satisfied by, then the diameter of axle or aperture can be carried out thermal spraying reparation；
4, use conventional method that the diameter of axle or aperture are sprayed plasma ashing tungsten, coating layer thickness should 0.2mm more than bigger than aperture and journal wearing amount sum, have enough grinding allowances with the diameter of axle after ensureing to spray；
5, the diameter of axle or aperture being carried out grinding, the final size to part meets the fit clearance that pattern requires；
6, the diameter of axle after grinding or aperture are detected a flaw, use not having grinding crack part to carry out assembling, occur that the part of grinding crack carries out another step and repairs or scrap.
The present invention is by analyzing and calculate, and to worn-out but also meet the part of intensity index and spray, reprocessing, to meet instructions for use.Owing to plasma ashing tungsten performance and 35Cr2Ni4MoA material have good tack, therefore, plasma ashing tungsten coating can meet instructions for use, additionally, the thermal spraying temperature that plasma ashing tungsten is coated with is typically in less than 150 DEG C, lower than the temperature of structural steel metal parts, therefore, its substrate performance is substantially free of impact by thermal spraying, will not the life-span of part and intensity be had a negative impact.Therefore, the present invention can reduce the scrappage of the diameter of axle of 35Cr2Ni4MoA material in machinery/aperture abrasion, saves cost, increases economic efficiency.
Detailed description of the invention
A kind of restorative procedure after the diameter of axle/aperture abrasion, described restorative procedure comprises the following steps:
1, the part of the shaft hole matching of 35Cr2Ni4MoA material is decomposed；
2, respectively to the diameter of axle after parts depreciation, aperture measurement, and its actual value is recorded；
3, respectively computational analysis abrasion after the diameter of axle, aperture size whether can meet the intensity index of mechanical movement, if some part is unsatisfactory for, then scrapped, and join and make mate, if being all unsatisfactory for, then by part rejection, if being satisfied by, then the diameter of axle or aperture can be carried out thermal spraying reparation；
4, use conventional method that the diameter of axle or aperture are sprayed plasma ashing tungsten, coating layer thickness should 0.2mm more than bigger than aperture and journal wearing amount sum, have enough grinding allowances with the diameter of axle after ensureing to spray；
5, the diameter of axle or aperture being carried out grinding, the final size to part meets the fit clearance that pattern requires；
6, the diameter of axle after grinding or aperture are detected a flaw, use not having grinding crack part to carry out assembling, occur that the part of grinding crack carries out another step and repairs or scrap.
Embodiment
The material of certain Helicopter Transmission System I and II fixed gear ring is 35Cr2Ni4MoA, is positioned by the seam of φ 594, thus ensureing axiality between the two.Pattern requires that fit clearance is not more than 0.08mm, is frequently found positioning spigot when overhauling and weares and teares, causes that both fit clearances are excessive, makes positioning precision between the two decline, affects all performances such as load, level of vibration of planetary mechanism transmission, it is impossible to be continuing with.To concretely comprising the following steps that it places under repair:
1, to the diameter of axle/apertures part, namely I and II fixed gear ring decomposes；
2, the diameter of axle after respectively I and II fixed gear ring being worn and torn, aperture measurement: after one-level fixed gear ring journal wearing, reality is actual in φ 594.06mm after φ 593.93mm, two grades of fixed gear ring aperture abrasions, both fit clearances are 0.13mm, more than pattern requirement；
3, respectively computational analysis abrasion after the diameter of axle, aperture size whether can meet the intensity index of mechanical movement: be computed analyze, the diameter of axle, aperture after the abrasion of I and II fixed gear ring meet intensity index, therefore the one-level fixed gear ring diameter of axle are carried out thermal spraying reparation；
4, to the one-level fixed gear ring diameter of axle to be repaired φ 593.93mm plasma Spraying of WC-Co Coating, the diameter of axle is sprayed into φ 594.3 ± 0.1mm, has enough grinding allowances with the diameter of axle after ensureing spraying；
5, the diameter of axle after one-level fixed gear ring being sprayed carries out grinding, it is ensured that final size isBeing computed, between I and II fixed gear ring, fit clearance is 0.02～0.06mm, meets 0～0.08mm of pattern requirement；6, the diameter of axle after one-level fixed gear ring grinding is carried out flaw detection, it does not have grinding crack, carry out installation and use.
Effect: meet the fit clearance of pattern requirement, reach job requirement.
Claims (1)
1. the restorative procedure after the diameter of axle/aperture abrasion, it is characterised in that described method comprises the following steps:
1) part of the shaft hole matching of 35Cr2Ni4MoA material is decomposed；
2) respectively to the diameter of axle after parts depreciation, aperture measurement, and its actual value is recorded；
3) respectively computational analysis abrasion after the diameter of axle, aperture size whether can meet the intensity index of mechanical movement, if some part is unsatisfactory for, then scrapped, and join and make mate, if being all unsatisfactory for, then by part rejection, if being satisfied by, then the diameter of axle or aperture can be carried out thermal spraying reparation；
4) use conventional method that the diameter of axle or aperture are sprayed plasma ashing tungsten, coating layer thickness should 0.2mm more than bigger than aperture and journal wearing amount sum, have enough grinding allowances with the diameter of axle after ensureing to spray；
5) diameter of axle or aperture being carried out grinding, the final size to part meets the fit clearance that pattern requires；
6) diameter of axle after grinding or aperture are detected a flaw, use not having grinding crack part to carry out assembling, occur that the part of grinding crack carries out another step and repairs or scrap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610264561.1A CN105729039A (en) | 2016-04-25 | 2016-04-25 | Repair method used after wearing of shaft diameter/pore diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610264561.1A CN105729039A (en) | 2016-04-25 | 2016-04-25 | Repair method used after wearing of shaft diameter/pore diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105729039A true CN105729039A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610264561.1A Pending CN105729039A (en) | 2016-04-25 | 2016-04-25 | Repair method used after wearing of shaft diameter/pore diameter |
Country Status (1)
| Country | Link |
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| CN (1) | CN105729039A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039254A (en) * | 2019-04-30 | 2019-07-23 | 山西豪仑科化工有限公司 | A method of repairing vacuum pump crosshead shoe |
| CN110666442A (en) * | 2019-09-09 | 2020-01-10 | 中国人民解放军第五七一九工厂 | Method for repairing size of VII-level disc spigot of compressor rotor |
| CN112589372A (en) * | 2020-11-27 | 2021-04-02 | 中钢集团邢台机械轧辊有限公司 | Method for repairing pin hole of supporting roller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2125508C1 (en) * | 1997-11-18 | 1999-01-27 | Научно производственный отдел защиты нефтепромыслового оборудования от коррозии и поддержания пластового давления НПО. "ЗНОК и ППД" | Surface repair method |
| CN102534461A (en) * | 2012-02-29 | 2012-07-04 | 中国人民解放军装甲兵工程学院 | Technique for reproducing engine crankshaft by automatic high-speed arc spraying |
| CN102554552A (en) * | 2012-01-30 | 2012-07-11 | 重庆生竹科技发展有限公司 | Repair method for thin hollow roller |
| CN102912276A (en) * | 2012-10-15 | 2013-02-06 | 秦皇岛格瑞得节能技术服务有限公司 | Plasma arc fusion covering repair method for continuous casting rollers |
| CN105216766A (en) * | 2015-10-30 | 2016-01-06 | 鲁一军 | A kind of high-strength vehicle suspension shaft restorative procedure |
| CN105483698A (en) * | 2015-12-31 | 2016-04-13 | 安徽昱工机电科技有限公司 | Cladding method for compounding tungsten carbide on high-chromium cast iron roller shell |
-
2016
- 2016-04-25 CN CN201610264561.1A patent/CN105729039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2125508C1 (en) * | 1997-11-18 | 1999-01-27 | Научно производственный отдел защиты нефтепромыслового оборудования от коррозии и поддержания пластового давления НПО. "ЗНОК и ППД" | Surface repair method |
| CN102554552A (en) * | 2012-01-30 | 2012-07-11 | 重庆生竹科技发展有限公司 | Repair method for thin hollow roller |
| CN102534461A (en) * | 2012-02-29 | 2012-07-04 | 中国人民解放军装甲兵工程学院 | Technique for reproducing engine crankshaft by automatic high-speed arc spraying |
| CN102912276A (en) * | 2012-10-15 | 2013-02-06 | 秦皇岛格瑞得节能技术服务有限公司 | Plasma arc fusion covering repair method for continuous casting rollers |
| CN105216766A (en) * | 2015-10-30 | 2016-01-06 | 鲁一军 | A kind of high-strength vehicle suspension shaft restorative procedure |
| CN105483698A (en) * | 2015-12-31 | 2016-04-13 | 安徽昱工机电科技有限公司 | Cladding method for compounding tungsten carbide on high-chromium cast iron roller shell |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039254A (en) * | 2019-04-30 | 2019-07-23 | 山西豪仑科化工有限公司 | A method of repairing vacuum pump crosshead shoe |
| CN110666442A (en) * | 2019-09-09 | 2020-01-10 | 中国人民解放军第五七一九工厂 | Method for repairing size of VII-level disc spigot of compressor rotor |
| CN112589372A (en) * | 2020-11-27 | 2021-04-02 | 中钢集团邢台机械轧辊有限公司 | Method for repairing pin hole of supporting roller |
| CN112589372B (en) * | 2020-11-27 | 2022-04-01 | 中钢集团邢台机械轧辊有限公司 | Method for repairing pin hole of supporting roller |
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Application publication date: 20160706 |