CN103264267A - Remanufacturing process of fully-mechanized coal mining hydraulic bracket - Google Patents
Remanufacturing process of fully-mechanized coal mining hydraulic bracket Download PDFInfo
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- CN103264267A CN103264267A CN2013102263223A CN201310226322A CN103264267A CN 103264267 A CN103264267 A CN 103264267A CN 2013102263223 A CN2013102263223 A CN 2013102263223A CN 201310226322 A CN201310226322 A CN 201310226322A CN 103264267 A CN103264267 A CN 103264267A
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Abstract
The invention relates to a remanufacturing process of a fully-mechanized coal mining hydraulic bracket. The remanufacturing process comprises the following steps of: washing before dismounting, dismounting, washing after dismounting, detecting, remanufacturing, assembling, testing a whole machine, spraying paint and storing. Aiming at damaged parts, a laser cladding restoration technology is adopted to remanufacture all parts of the fully-mechanized coal mining hydraulic bracket on the basis of performance failure analysis and service life evaluation analysis, so that the defects of limited machining times, bad roughness and bad effects of a previous restoration process are overcome, the remanufacturing efficiency is improved, the strength of a remanufactured structural piece is enhanced, the service lives of the structural piece and a machined piece are prolonged, the quality of a product is ensured, the production cost is reduced and environmental friendliness can be achieved.
Description
Technical field
The present invention relates to a kind of comprehensive mining hydraulic bracket manufacturing process again, belong to the mining machinery technical field.
Background technology
Growing continuously and fast and heavy industry trend of China's economic, the natural resources that makes China lack is relatively bearing huge pressure.Under this background, pursue " 4R " recycling economy development pattern of building minimizing (Reduce), recycling (Reuse), recirculation (Recycle) and making (Remanufacture) again, and then the idea of development of scale and speed is pursued in change for a long time merely, be not only a kind of policy guidance, and admitted by increasing people in the industry.Comprehensive mining hydraulic bracket is as the important component part of mine equipment manufacture, and the residue utilized of mining machinery industry is higher relatively, and therefore developing manufacturing industry becomes the new way that the mine engineering machinery enterprise is tried to explore and attempted gradually again.Consider are becoming tight current resource, energy day, the ever-increasing severe situation of ecological environment pressure, greatly develop engineering machinery manufacturing industry again, not only can improve the technical capability of construction machinery industry, and can activate the market, improve the whole competitiveness of industry, thereby for promoting the good and fast development of national economy to bring into play due effect.
Making is a kind of industry of waste and old hydraulic support being implemented new and high technology reparation and transformation again, at the parts that damage, on the basis that performance failure analysis, life appraisal are analyzed, carry out again the manufacturing engineering design, adopt a series of relevant advanced manufacturing technologies, the quality that manufactures a product is again reached or surpass new product.
The domestic generally accepted processing method of manufacturing process again is to adopt reaming method and replacing method in the manufacture process again at hydraulic support at present, there are defectives such as restorative procedure is single, structural member reparation number of times is limited, repairing effect is poor, the influence of parts change scope is big, do not reach expected effect and purpose, certain drawback is arranged.
Summary of the invention
The objective of the invention is to overcome the defective that has again manufacturing process now and a kind of comprehensive mining hydraulic bracket manufacturing process again is provided.
The technical solution adopted for the present invention to solve the technical problems is: comprehensive mining hydraulic bracket is manufacturing process again, may further comprise the steps:
1) disassemble preceding cleaning: waste and old parts are reclaimed, utilize high-pressure washing machine, semiclosed circulating water pool that parts are cleaned, remove coal dust, bastard coal and other foreign material of rack surface, emphasis clean needling and forward and backward, go up the coal dust in the connecting rod;
2) disassemble: utilize forcing press that the waste and old parts after disassembling are carried out non-damaged disassembly;
3) disassembling the back cleans: utilize supersonic wave cleaning machine that the parts after disassembling are carried out ultrasonic cleaning;
4) detect: utilize conventional measurer, intelligent magnetic memory metal diagnostic equipment, tension gauge that each parts is carried out nondestructive inspection and detect, carry out failure analysis, life appraisal analysis;
5) make again: make processing again to detecting parts defective but can recycling, at first utilize LASER HEAT TREATMENT equipment that parts are carried out the laser melting coating reparation, utilize lathe, grinding machine that parts are carried out machining then;
6) assembling: each parts after will making again utilize forcing press to carry out the not damaged assembling;
7) overall test: the support after utilizing the stented test platform to assembling carries out compbined test, and the performance of back comprehensive mining hydraulic bracket is made in test again;
8) warehouse-in that sprays paint: the comprehensive mining hydraulic bracket to test passes adopts water curtain type spray chamber to seal processings of spraying paint, and puts in storage.
The present invention has following beneficial effect: at the parts that damage, on the basis that performance failure analysis, life appraisal are analyzed, adopt the laser melting coating recovery technique, each parts of comprehensive mining hydraulic bracket are made again, overcome that former renovation technique processing number of times is limited, roughness is poor, the defective of weak effect, improved and made efficient again, increase the intensity of making the back structural member again, prolonged the service life of structural member and workpiece, guaranteed product quality, reduce production costs environmental protection.Particularly:
1, realize the control of unmanned coal-face: the control of complete equipment has realized remote full-automatic operation, effectively improve working face staff's security, improved the working condition of coal miner, improve the modern management level in colliery, realized the control of unmanned coal-face;
2, the integral structure component mechanical performance improves: increase and use intensity frequent, stress point spare concentration members, and the mechanical performance and the flexibility that have improved key structure spare, it is more sturdy and durable to make after-poppet again, flexible operation, integral structure component is more safe and reliable;
3, prolonged the service life of hydraulic system: make again with rear tubular member and connector and be replaced by stainless steel, adapted to imperial solid ore deposit high temperature, highly corrosive, geological environment that air humidity is big more.Handle by four connecting rod cusped edge place abates, increase special steel pipe, increase flexible shroud in sebific duct perforation place, change the otic placode location dimension, the part sebific duct changes steel pipe into, a series of measures such as welded pipe row, the firm fluid pressure line of having fixed has prolonged service life of comprehensive mining hydraulic bracket greatly.
Description of drawings
Fig. 1 is the comprehensive mining hydraulic bracket of the present invention process chart of manufacturing process again.
The specific embodiment
The present invention is described in detail below in conjunction with the specific embodiment
As shown in Figure 1, comprehensive mining hydraulic bracket is manufacturing process again, may further comprise the steps:
1, disassemble preceding cleaning: waste and old parts are reclaimed, utilize high-pressure washing machine, semiclosed circulating water pool that parts are cleaned, remove coal dust, bastard coal and other foreign material of rack surface, emphasis clean needling and forward and backward, go up the coal dust in the connecting rod.
2, disassemble: utilize forcing press that the waste and old parts after disassembling are carried out non-damaged disassembly.
1) tears open on link pin, the column and sell, support is launched;
2) connecting rod in the dismounting, front and rear connecting rods, the front stretching beam, back card/back board, the front stretching jack, back tail boom jack, the back card/back board jack is passed jack, has torn part open and will classify and put neatly, and jack should be placed on the wooden liner, in case damage;
3) remove left and right backplate and side and protect jack, tore part open and will put neatly, and crooked, distortion classification are transported to manufacturing field again;
4) remove valve group, sebific duct, spraying water pipe etc., and sort out and put into container;
Should tear the U-shaped card earlier open when 5) removing sebific duct and take out sebific duct again, not handy hand hammer damages rubber hose coupling;
6) tear the column downside pin open, column is concentrated and is placed in assigned address.
7) column disintegrates, and the lifting column is placed on the paralell, tears the cover battle pin open with specific purpose tool, the collar, snap ring are placed in the container respectively, column is hung on the prop dismounting machine, tears mechanical extension bar open, and be put into assigned address, except embroidering, clean, detecting, tear the fairlead assembly open, be placed on assigned address, suppress and extract middle cylinder and little post alive, therefrom take off fairlead on cylinder, the post of living, and take off various seals from fairlead.
3, disassembling the back cleans: utilize supersonic wave cleaning machine that the parts after disassembling are carried out ultrasonic cleaning.
4, detect: utilize conventional measurer, intelligent magnetic memory metal diagnostic equipment, tension gauge that each parts is carried out nondestructive inspection and detect, carry out failure analysis, life appraisal analysis.
The structural member assessment requires:
1) the planar junction member requires:
1. have the structural member on big plane, the maximum distortion of this plane on arbitrary size must not be greater than 5 ‰;
2. the recess that occurs on the plane, its area should be not more than 100cm
2, the degree of depth is not more than 10mm, has one overproofly namely to answer shaping to handle in the binomial;
3. the projection that occurs on the plane, its area should be not more than 100cm
2, highly be not more than 10mm, there is one overproofly namely should carry out shaping and handle in the binomial, but must not reduces raw material thickness;
4. the sags and crests on the plane does not allow to surpass 2 places/m
2
2) all kinds of side guard plate perpendicularity franchises are 3%, are loaded on that the plane must not be higher than above the back timber on the side guard plate of support.
3) the axis nonparallelism of connecting rod two ends pin shaft hole is less than 2 ‰, and the maximal clearance that cooperates with bearing pin should be less than 2.5mm.
4) passing the non-perpendicularity of framework (or passing beam) should be less than 5 ‰, is no more than 50% of former design load tolerance with the tolerance maximum of its fit dimension of the joining position of drag conveyor.
5) all structural members of making again through welding, its weld seam should meet the regulation of MT/T 587-2011 hydraulic support structural member manufacturing technology condition.
6) back-moving spring in the side guard plate is if its drift than more than the short 15mm of design length, should be changed.
5, make again: make processing again to detecting parts defective but can recycling, at first utilize LASER HEAT TREATMENT equipment that parts are carried out the laser melting coating reparation, utilize lathe, grinding machine that parts are carried out machining then.Before making, each structural member must carry out the shot-blasting machine processing of rust removing earlier again, and rust cleaning must evenly, thoroughly not stayed any dead angle, and each structural member of shot-blasting machine rust cleaning back must expose metallic luster.
The manufacturing again of distressed structure spare: the 16Mn steel construction piece allows to correct distortion with forcing press or flame method; Quenched and tempered steel only allows to correct distortion with forcing press, forbids to adopt flame method to correct distortion.
Snap, the manufacturing again of breaking junction member: according to design drawing and specification requirement, the structural member that snaps is carried out the cut repair welding, welding should be adopted MT/T 587-2011 hydraulic support structural member manufacturing technology condition, can not arbitrarily change size, material, shape and the position of part, the structural member intensity after making again should meet specification requirement.
The manufacturing again of hinge hole: for the hinge hole of wear extent less than diameter 5%, after cleaning, checking, can continue to use; The hinge hole that surpasses diameter 5% for wear extent, again carry out machining after must making again by laser melting coating, the laser melting coating operation is with reference to DB37/T 1932-2011 collieries hydraulic support column and the requirement of jack laser melting coating re-manufacturing technology, reach designing requirement, can continue to use.
6, assembling: each parts after will making again utilize forcing press to carry out the not damaged assembling;
7, overall test: the support after utilizing the stented test platform to assembling carries out compbined test, and the performance of back comprehensive mining hydraulic bracket is made in test again;
8, the warehouse-in that sprays paint: the comprehensive mining hydraulic bracket to test passes adopts water curtain type spray chamber to seal processings of spraying paint, and puts in storage.
Claims (1)
1. comprehensive mining hydraulic bracket manufacturing process again is characterized in that, may further comprise the steps:
1) disassemble preceding cleaning: waste and old parts are reclaimed, utilize high-pressure washing machine, semiclosed circulating water pool that parts are cleaned, remove coal dust, bastard coal and other foreign material of rack surface, emphasis clean needling and forward and backward, go up the coal dust in the connecting rod;
2) disassemble: utilize forcing press that the waste and old parts after disassembling are carried out non-damaged disassembly;
3) disassembling the back cleans: utilize supersonic wave cleaning machine that the parts after disassembling are carried out ultrasonic cleaning;
4) detect: utilize conventional measurer, intelligent magnetic memory metal diagnostic equipment, tension gauge that each parts is carried out nondestructive inspection and detect, carry out failure analysis, life appraisal analysis;
5) make again: make processing again to detecting parts defective but can recycling, at first utilize LASER HEAT TREATMENT equipment that parts are carried out the laser melting coating reparation, utilize lathe, grinding machine that parts are carried out machining then;
6) assembling: each parts after will making again utilize forcing press to carry out the not damaged assembling;
7) overall test: the support after utilizing the stented test platform to assembling carries out compbined test, and the performance of back comprehensive mining hydraulic bracket is made in test again;
8) warehouse-in that sprays paint: the comprehensive mining hydraulic bracket to test passes adopts water curtain type spray chamber to seal processings of spraying paint, and puts in storage.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103866221A (en) * | 2014-04-01 | 2014-06-18 | 焦作市华科液压机械制造有限公司 | Remanufacturing process for piston rod of supporting type coal mine hydraulic support through induction, preheating and cladding |
| CN103911579A (en) * | 2014-04-01 | 2014-07-09 | 焦作市华科液压机械制造有限公司 | Process for induction pre-heating cladding of thin layer |
| AU2015203807B1 (en) * | 2015-05-19 | 2016-07-07 | Shandong Energy Heavy Equipment Group Dazu Remanufacturing Co.,Ltd. | Method for remanufacturing scraper conveyor |
| CN106624626A (en) * | 2016-11-18 | 2017-05-10 | 甘肃兰煤机械制造有限公司 | Mine waste machine repair process |
| CN106925961A (en) * | 2017-04-14 | 2017-07-07 | 山东宜修汽车传动工程技术有限公司 | A kind of vehicle bridge remanufactures production method |
| CN109128683A (en) * | 2018-08-10 | 2019-01-04 | 上海清河机械有限公司 | A kind of fluid end clack box inner cavity and plunger end sealing hole restorative procedure |
| CN109514170A (en) * | 2018-10-12 | 2019-03-26 | 庄河市液压件厂 | A kind of hydraulic valve remanufactures technique |
| CN115055906A (en) * | 2022-03-14 | 2022-09-16 | 天地宁夏支护装备有限公司 | Method for repairing upright column of aqueous medium double-telescopic hydraulic support |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866221A (en) * | 2014-04-01 | 2014-06-18 | 焦作市华科液压机械制造有限公司 | Remanufacturing process for piston rod of supporting type coal mine hydraulic support through induction, preheating and cladding |
| CN103911579A (en) * | 2014-04-01 | 2014-07-09 | 焦作市华科液压机械制造有限公司 | Process for induction pre-heating cladding of thin layer |
| AU2015203807B1 (en) * | 2015-05-19 | 2016-07-07 | Shandong Energy Heavy Equipment Group Dazu Remanufacturing Co.,Ltd. | Method for remanufacturing scraper conveyor |
| CN106624626A (en) * | 2016-11-18 | 2017-05-10 | 甘肃兰煤机械制造有限公司 | Mine waste machine repair process |
| CN106925961A (en) * | 2017-04-14 | 2017-07-07 | 山东宜修汽车传动工程技术有限公司 | A kind of vehicle bridge remanufactures production method |
| CN106925961B (en) * | 2017-04-14 | 2019-02-01 | 山东宜修汽车传动工程技术有限公司 | A kind of vehicle bridge remanufactures production method |
| CN109128683A (en) * | 2018-08-10 | 2019-01-04 | 上海清河机械有限公司 | A kind of fluid end clack box inner cavity and plunger end sealing hole restorative procedure |
| CN109514170A (en) * | 2018-10-12 | 2019-03-26 | 庄河市液压件厂 | A kind of hydraulic valve remanufactures technique |
| CN115055906A (en) * | 2022-03-14 | 2022-09-16 | 天地宁夏支护装备有限公司 | Method for repairing upright column of aqueous medium double-telescopic hydraulic support |
| CN115055906B (en) * | 2022-03-14 | 2024-03-29 | 天地宁夏支护装备有限公司 | Method for repairing upright post of aqueous medium double-telescopic hydraulic support |
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Application publication date: 20130828 |