CN105935855A - Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill - Google Patents
Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill Download PDFInfo
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- CN105935855A CN105935855A CN201510871136.4A CN201510871136A CN105935855A CN 105935855 A CN105935855 A CN 105935855A CN 201510871136 A CN201510871136 A CN 201510871136A CN 105935855 A CN105935855 A CN 105935855A
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- roll
- face
- tooth
- contrate gear
- boss
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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)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a repairing method for an end face tooth rolling roll shaft of a novel three-roll planetary rolling mill. The repairing method is characterized by comprising the following steps that firstly, machining is conducted, wherein end face teeth on the damaged rolling roll shaft are integrally turned to form a recyclable shaft roll, an end face fluted disc is machined through additional raw materials, the end portion of the shaft roll comprises a limiting face, the limiting face is provided with a boss, and the boss is provided with first positioning pin holes and connecting screw holes; an installing groove is formed in one face of the end face fluted disc, and the end face fluted disc is provided with second positioning pin holes and connecting through holes; and secondly, assembly is conducted, wherein the end face fluted disc is aligned with the end portion of the shaft roll, the first positioning pin holes are made to be overlapped with the corresponding second positioning pin holes, pins are beaten in, then, the boss is embedded in the installing groove through interference fit, finally, threaded fasteners are used for penetrating the connecting through holes to be screwed with the connecting screw holes, and therefore the end face fluted disc and the end portion of the shaft roll are fixed into a whole.
Description
Technical field
The present invention relates to a kind of three-roller planetary rolling mill end-tooth roll mandrel, the restorative procedure of a kind of novel three-roller planetary rolling mill end-tooth roll mandrel.
Background technology
Three-roller planetary rolling mill can roll with continuous high-efficient in the course of processing as non-ferrous metal, and the advantages such as elongation percentage is big, energy-conservation, constant product quality are widely used.The Jin Long group of Copper fabrication enterprise of largest domestic has 20 a plurality of this production lines, and annual capacity arrives the production capacity of 450,000 tons of cooling accurate copper pipes.
But owing to three-roller planetary rolling mill roll-force is bigger, roller head carries axial, radial stress repeatedly with the end-tooth of roll mandrel junction, gradually produce fatigue fracture, when the number of teeth that ruptures reaches some, owing to the effectively carrying number of teeth is very few, roll mandrel cannot use, and therefore the roll mandrel of about 90% is stopped using and scrapped.Reduce with roll cooperation intensity after the fracture of roll mandrel end-tooth, cause tube rolling lines width to differ, wall unevenness phenomenon, relatively big on product quality impact, need after this phenomenon occurs to shut down the replacing carrying out roll mandrel, bring impact to production.Averagely every rolling mill roll axle annual consumption is at about 9, and every milling train light annual consumption costs of end-tooth roll mandrel is at about 80,000 yuan.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides the restorative procedure of a kind of novel three-roller planetary rolling mill end-tooth roll mandrel.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of restorative procedure of novel three-roller planetary rolling mill end-tooth roll mandrel, it is characterised in that: comprise the following steps:
Step one: processing, end-tooth entirety turning on the roll mandrel of damage being fallen to be formed recycling beaming roller, and uses other Raw material processing to go out contrate gear, described beaming roller end includes a confined planes, this confined planes is provided with boss, and boss is provided with the first dowel hole and connecting screw hole；Described contrate gear one side is provided with mounting groove, and contrate gear is provided with the second dowel hole and connects through hole,
Step 2: assembling, by contrate gear and beaming roller end part aligning, make the first dowel hole overlapping with the second corresponding dowel hole, and pin is squeezed into, then interference fit is used to make boss embed in mounting groove, finally use threaded fastener to screw with connecting screw hole through connecting through hole, thus contrate gear is fixed as one with beaming roller end.
The one-tenth-value thickness 1/10 of the tooth on described contrate gear and length value are all higher than one-tenth-value thickness 1/10 and the length value of end-tooth.
The diameter of described contrate gear is more than the diameter of the end of roll mandrel.
The invention has the beneficial effects as follows:
1, change conventional roll mandrel end-tooth damage remainder intact, but situation about scrapping of having to, thus cost-effective, substantially one million yuan within 1 year, can be saved；
2, the wear ring installed on former roll mandrel is cancelled, and make into become an entirety with contrate gear, strengthen the thickness of part, big interference fit is used to coordinate outer bolt to fix with built-in pin, make the end face ring gear after repairing can bear bigger moment of torsion, it is ensured that contrate gear and beaming roller are connected firmly；
3, the tooth on contrate gear is increased thickness and length and improves end-tooth intensity and precision location is more accurate, more preferably, thus contrate gear precision improves and stablize tube rolling evenness of wall thickness interchangeability, raising lumber recovery；
4, rehabilitation expense is buy new axle expense about 35%, and its practical economic worth of 80%-90%. reaching new axle service life is big.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the topology view of the present invention；
Fig. 2 is the topology view of the beaming roller of the present invention；
Fig. 3 is the topology view of the contrate gear of the present invention.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the invention discloses the restorative procedure of a kind of novel three-roller planetary rolling mill end-tooth roll mandrel, comprise the following steps:
Step one: processing, end-tooth entirety turning on the roll mandrel of damage is fallen to be formed recycling beaming roller 1, certainly also the wear ring being installed on roll mandrel is removed before turning, and use other bar to process contrate gear 2, described beaming roller 1 end includes a confined planes 3, this confined planes 3 is provided with boss 4, and boss 4 is provided with the first dowel hole 5 and connecting screw hole 6；Described contrate gear 2 one side is provided with mounting groove 7, and contrate gear 2 is provided with the second dowel hole 8 and connects through hole 9,
Step 2: assembling, by contrate gear 2 and beaming roller 1 end part aligning, make the first dowel hole 5 overlapping with the second corresponding dowel hole 8, and pin is squeezed into, then interference fit is used to make boss 4 embed in mounting groove 7, threaded fastener is finally used to screw through connecting through hole 9 with connecting screw hole 6, threaded fastener is high-strength bolt, thus contrate gear 2 is fixed as one with beaming roller 1 end, in this example, the magnitude of interference of interference fit wants big, so that boss 4 embeds mounting groove 7 firmly, so could bear bigger torsion in long-term transmission work, if without big interference fit but relying on merely high-strength bolt to connect fastening in practice, use after one period of short time under the repeated stock of driving force, high-strength bolt also can fatigue fracture, thus affect production.
The one-tenth-value thickness 1/10 of the tooth on described contrate gear 2 and length value are all higher than one-tenth-value thickness 1/10 and the length value of old end-tooth, consequently facilitating raising machining accuracy, making location more accurate, interchangeability is more preferably, thus tube rolling evenness of wall thickness is stablized in the raising of contrate gear 2 precision, improves lumber recovery.
The diameter of described contrate gear 2 is more than the diameter of the end of roll mandrel, thus the wear ring installed by original roll mandrel is removed, the outer rim directly using contrate gear 2 replaces the effect of wear ring to coordinate water proof and dust proof with sealing ring, and after the enlarged diameter of contrate gear 2, the diameter of the mounting groove 7 on contrate gear 2 the most also can design increase, thus adds the contact surface of boss 4 and mounting groove 7, chimeric tighter, and bigger power can be born, improve service life.
The restorative procedure of a kind of novel three-roller planetary rolling mill end-tooth the roll mandrel above embodiment of the present invention provided, it is described in detail, principle and the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, the most all will change, in sum, this specification content should not be construed as limitation of the present invention.
Claims (3)
1. the restorative procedure of a novel three-roller planetary rolling mill end-tooth roll mandrel, it is characterised in that: comprise the following steps:
Step one: processing, end-tooth entirety turning on the roll mandrel of damage being fallen to be formed recycling beaming roller, and uses other Raw material processing to go out contrate gear, described beaming roller end includes a confined planes, this confined planes is provided with boss, and boss is provided with the first dowel hole and connecting screw hole；Described contrate gear one side is provided with mounting groove, and contrate gear is provided with the second dowel hole and connects through hole,
Step 2: assembling, by contrate gear and beaming roller end part aligning, make the first dowel hole overlapping with the second corresponding dowel hole, and pin is squeezed into, then interference fit is used to make boss embed in mounting groove, finally use threaded fastener to screw with connecting screw hole through connecting through hole, thus contrate gear is fixed as one with beaming roller end.
The restorative procedure of a kind of novel three-roller planetary rolling mill end-tooth roll mandrel the most according to claim 1, it is characterised in that: the one-tenth-value thickness 1/10 of the tooth on described contrate gear and length value are all higher than one-tenth-value thickness 1/10 and the length value of end-tooth.
The restorative procedure of a kind of novel three-roller planetary rolling mill end-tooth roll mandrel the most according to claim 1, it is characterised in that: the diameter of described contrate gear is more than the diameter of the end of roll mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871136.4A CN105935855A (en) | 2015-12-02 | 2015-12-02 | Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871136.4A CN105935855A (en) | 2015-12-02 | 2015-12-02 | Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill |
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| Publication Number | Publication Date |
|---|---|
| CN105935855A true CN105935855A (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510871136.4A Pending CN105935855A (en) | 2015-12-02 | 2015-12-02 | Repairing method for end face tooth rolling roll shaft of novel three-roll planetary rolling mill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583457A (en) * | 2016-11-25 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Tool for finishing die profile of blade rolling die and using method |
| CN106825615A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack compensates method for turning |
| CN106825620A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack step traditional method of indicating the pronunciation of a Chinese character method for turning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078496A (en) * | 1992-05-11 | 1993-11-17 | 雷廷扬 | Method for repairing local damage of sugarcane press roll |
| CN101574765A (en) * | 2009-06-05 | 2009-11-11 | 上海锦川机电技术有限公司 | Method for recycling wear-out failure fluted disc of sinter breaker |
| JP2011255461A (en) * | 2010-06-09 | 2011-12-22 | Mitsubishi Plastics Inc | Wire saw and main roller thereof |
| WO2012013674A1 (en) * | 2010-07-28 | 2012-02-02 | Felix Böttcher Gmbh & Co. Kg | Method for repairing a cylinder, and a cylinder |
| CN202317580U (en) * | 2011-11-16 | 2012-07-11 | 安徽天一重工股份有限公司 | Novel insert bush for repairing inner holes of continuous casting rollers |
| CN103934626A (en) * | 2014-05-12 | 2014-07-23 | 苏州润德新材料有限公司 | Repair method of NTC multi-wire sawing machine main roller and main roller structure after repair |
-
2015
- 2015-12-02 CN CN201510871136.4A patent/CN105935855A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078496A (en) * | 1992-05-11 | 1993-11-17 | 雷廷扬 | Method for repairing local damage of sugarcane press roll |
| CN101574765A (en) * | 2009-06-05 | 2009-11-11 | 上海锦川机电技术有限公司 | Method for recycling wear-out failure fluted disc of sinter breaker |
| JP2011255461A (en) * | 2010-06-09 | 2011-12-22 | Mitsubishi Plastics Inc | Wire saw and main roller thereof |
| WO2012013674A1 (en) * | 2010-07-28 | 2012-02-02 | Felix Böttcher Gmbh & Co. Kg | Method for repairing a cylinder, and a cylinder |
| CN202317580U (en) * | 2011-11-16 | 2012-07-11 | 安徽天一重工股份有限公司 | Novel insert bush for repairing inner holes of continuous casting rollers |
| CN103934626A (en) * | 2014-05-12 | 2014-07-23 | 苏州润德新材料有限公司 | Repair method of NTC multi-wire sawing machine main roller and main roller structure after repair |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583457A (en) * | 2016-11-25 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Tool for finishing die profile of blade rolling die and using method |
| CN106583457B (en) * | 2016-11-25 | 2018-09-18 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of tooling and application method for the finishing of blade roll milling mold type face |
| CN106825615A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack compensates method for turning |
| CN106825620A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack step traditional method of indicating the pronunciation of a Chinese character method for turning |
| CN106825615B (en) * | 2017-03-22 | 2018-10-02 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack compensation method for turning |
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Application publication date: 20160914 |
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| RJ01 | Rejection of invention patent application after publication |