CN106624642A - Machining method for mine movable column - Google Patents
Machining method for mine movable column Download PDFInfo
- Publication number
- CN106624642A CN106624642A CN201611185312.XA CN201611185312A CN106624642A CN 106624642 A CN106624642 A CN 106624642A CN 201611185312 A CN201611185312 A CN 201611185312A CN 106624642 A CN106624642 A CN 106624642A
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- China
- Prior art keywords
- live post
- mining
- pipe
- processing method
- alloy
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- 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.)
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Classifications
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a machining method for a mine movable column. The mine movable column is a tubular body. The machining method comprises the following steps: turning the excircle of a part needing to be compounded, of a movable column body, and cleaning and drying; rolling an alloy plate into an alloy tube, and cleaning and drying the surface of the alloy tube; arranging the alloy tube on the movable column body in a sleeving manner to form a compound workpiece; and pulling the compound workpiece to penetrate through an alloy drawing die provided with a metering hole, wherein the inner diameter of the metering hole is less than the outer diameter of the alloy tube, and the alloy tube generates plastic deformation and is integrally compounded with the surface of the movable column body to form the mine movable column when the compound workpiece penetrates through the interior of the metering hole in an extrusion manner. The machining method enables the alloy tube to generate plastic deformation and be integrally compounded with the surface of a carbon steel tube.
Description
Technical field
The present invention relates to Coal Mechanical field, more particularly to a kind of processing method of mining live post.
Background technology
Large scale mining with more than 30 years coal with use, Coal Mechanical is also flourished.Especially supporting class
Product (also referred to as live post), the upgrading from friction prop to hydraulic prop, developing deeply to big fully mechanized mining (Fully-mechanized coal mining) institute
The suspension moving hydraulic support for using.3,000,000 frame suspension moving hydraulic supports of national annual about production, produce huge market, while having
About 30 many enterprises are producing the product.Because of the particularity (high humility, high dust, peracidity or alkaline environment) of environment in colliery
Heavy corrosion can be caused to iron, the oil cylinder and support bar corrosion for making support critical component column is damaged or scrapped.So
The enterprise of production suspension moving hydraulic support will carry out preservative treatment to the sealing surfaces of support oil cylinder in process of production, just can make
Column has certain life-span.Thus produce various anticorrosion process to be applied in the production process of column.
The renovation technique for adopting in the market has two methods：1. the Nitinol combination process of electroplating technology 2..More than
Two methods mentality of designing is identical, is all to apply one layer of anticorrosive coat to isolate corrosive medium and matrix in steel pipe working surface
Contact, reaches corrosion-resistant purpose.But implementing process causes the scope of application and antiseptic property difference huge because of difference.It is current universal
The electroplating technology for using because its production process can cause severe environmental pollution, service life low (about one year or so) the shortcomings of, it is full
The foot not requirement of modern industry, is abandoned using by Zhejiang then researches and develops new technology substituting.Nitinol combination process is because of it
Production process is environment friendly and pollution-free, production efficiency is high and the features such as manufactured goods long service life (in theory can forever anti-corrosion), gradually
Preferable new technology is considered as by Ge Jia enterprises, and puts into substantial contribution and researched and developed.But its is with high content of technology, parameter request essence
Close, process control is difficult, composite molding is unstable etc., and technological difficulties are not hacked always.
At present, a kind of multiple tube is produced using bushing method, in the method, with the multiple welded tube of 1.2mm thick Nitinol
Plus thermal expansion, steel tube surface is packed into hydraulic coupling, make compo pipe be attached to steel tube surface using convergent force after cooling, and form anti-
Rotten layer.But it has the disadvantage that：
1. the mechanical dimension's required precision to workpiece is extremely strict, such as dimensional accuracy (internal diameter size of compo pipe, circularity and
Cylindricity) it is not up to standard, can cause that alloy-layer and steel pipe layer have gap and relatively pine slides into and affects using effect.
2. require that Thin wall alloy tube (because of its poor rigidity, yielding) has accurate dimensional accuracy, technically difficulty is too
Height, is difficult to realize.
3. after being molded, there is gap between two metal levels all the time, affect the mechanical performance and intensity of live post.
4. low production efficiency, product percent defective is high.
The information for being disclosed in the background section is merely intended to increase the understanding of the general background to the present invention, and should not
When the prior art for being considered to recognize or imply in any form the information structure well known to persons skilled in the art.
The content of the invention
It is an object of the invention to provide a kind of processing method of mining live post, the adhesive force pole of the alloy-layer after being combined
By force, the intensity being machined can be reached, production efficiency is high.
For achieving the above object, the invention provides a kind of processing method of mining live post, live post that this is mining is tubular body,
The processing method comprises the steps：Compound the cylindrical of place is needed to machine live post body, and cleaning, drying；Use alloy
Sheet material is rolled into compo pipe, by the surface clean of compo pipe and dries；Compo pipe is set on live post body and then formation one
Plant composite articles；And pulling composite articles through the alloy drawing-die with metering hole, the internal diameter of metering hole is less than compo pipe
External diameter, when composite articles are extruded through in metering hole, compo pipe produce plastic deformation and with the surface recombination of live post body into
One further forms mining live post.
Preferably, composite articles drive the tail end of live post body and then pass through metering hole by pull head.
Preferably, the head in live post body installs guide head, and compo pipe is fixed on guide head, and composite articles are first by it
Guide head partially passes through metering hole.
Preferably, live post body is carbon steel pipe, and compo pipe is Nitinol pipe.
Preferably, Nitinol thickness of pipe 0.5-2mm.
Preferably, external diameter 0.25mm～0.4mm of the internal diameter of metering hole less than compo pipe.
Compared with prior art, the present invention has the advantages that：Alloy pipe size precision is not required, tubulation into
Type is easy.Alloy-layer after compound is extremely strong to the adhesive force of steel pipe, can reach the intensity being machined.After shaping, two gold medals
Gapless between category layer, does not affect the sealing property and intensity on live post surface.Production efficiency is high, without percent defective.
Description of the drawings
Fig. 1 be mining live post of the invention processing method in cold extrusion Compositions of metal-working machines structural representation；
Fig. 2 be mining live post of the invention processing method in cold extrusion Compositions of metal-working machines a kind of state illustrate
Figure；
Fig. 3 be mining live post of the invention processing method in another kind of state of cold extrusion Compositions of metal-working machines show
It is intended to；
Fig. 4 be mining live post of the invention processing method in cold extrusion Compositions of metal-working machines pincers mechanism of car knot
Composition；
Fig. 5 be mining live post of the invention processing method in cold extrusion Compositions of metal-working machines alloy drawing-die knot
Composition；
Fig. 6 be mining live post of the invention processing method in composite articles assembled schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
According to the processing method of a kind of mining live post of the specific embodiment of the invention, live post that this is mining is tubular body, is tied
Fig. 1 to Fig. 6 is closed, the processing method comprises the steps：
The first step, needs compound the cylindrical of place to machine live post body 61, and cleaning, drying.
Second step, with sheet alloy compo pipe 62 is rolled into, and by the surface clean of compo pipe 62 and is dried.
3rd step, compo pipe 62 is set on live post body 61 and then a kind of composite articles 6 are formed.And
4th step, pulls composite articles 6 through the alloy drawing-die 71 with metering hole, and the internal diameter of metering hole is less than compo pipe
62 external diameter, when composite articles 6 are extruded through in metering hole, compo pipe 62 produce plastic deformation and with the table of live post body 61
Face is combined into one and then forms mining live post.,.
Used as a kind of preferred embodiment, composite articles 6 drive the tail end of live post body 61 and then pass through sizing by pull head
Hole.
As a kind of preferred embodiment, guide head 9 is installed in the head of live post body 61, compo pipe 62 is fixed on guide head
On 9, composite articles 6 first partially pass through metering hole (participation Fig. 2) by its guide head.
Used as a kind of preferred embodiment, live post body 61 is carbon steel pipe, and compo pipe 62 is Nitinol pipe.
As a kind of preferred embodiment, Nitinol thickness of pipe 0.5-2mm, preferred 0.8mm.
Used as a kind of preferred embodiment, the internal diameter of metering hole is less than the external diameter 0.25mm～0.4mm of compo pipe.
Below by taking a kind of specific mining live post as an example, it is as the live post of Φ 260 (- 0.052^-0.182) with compound external diameter
Row, are described in detail to the processing method：
Embryo processed：Live post need to be combined into the cylindrical Vehicle Processing in place to Φ 258.7mm, then size Φ is ground to cylindrical grinder
258.4+0.08mm, cylindrical ovality and linearity is less than 0.03mm.Surface is removed after machining with industrial cleaning agent
You Zi ﹑ spots and dust.Oven for drying is then placed in, waits to be composite.
Tubulation：By the thick sheet alloy blankings of 0.8mm, it is the pipe of Φ 260 to be rolled into internal diameter, then is welded with Straight seam welding machine
Seam crossing, while carrying out rolling processing to weld seam.Ensure smooth welded seam, smooth zero defect.Removed with industry cleaning agent after machining
Go the You Zi ﹑ spots and dust on surface.Oven for drying is then placed in, waits to be composite.
It is die-filling：Split type alloy drawing-die each several part is cleaned up and is assembled integrally (participation Fig. 5), then with internal diameter thousand
Point chi checks whether seam smooths at internal diameter size (Φ 258.74mm) and three (feel mustn't have dislocation sense).It is then fitted into multiple
In the alloy die holder at conjunction center, then it is applied on the calibrating strap of mould with complexing agent.Wait Compound Machining.
It is assembled：First it is directed to 9 and is arranged on inner hole of workpiece, center is put on mandrel 81, then compo pipe is enclosed within outside workpiece
On circle, compo pipe is compressed together with guide head with hydraulic press, and compo pipe is fixed on guide head with 4 steady pins 91
(participation Fig. 6).Integral hoisting again is placed on the bracing frame in complex centre, in alloy tube outer surface uniform application complexing agent, etc.
It is to be composite.
It is installed：Start the hydraulic power unit in complex centre, pliers for opening car drives oil cylinder 21, band nutating gear 22 to rotate, and
Make the living hinge 23 on gear 22 protract to promote jaw 25 to close (participation Fig. 4) along jaw guide rail 24, realize clamping core
The purpose of axle 81.Etc. to be composite.
It is compound：Hydraulic jack 3 is opened, pincers mechanism of car 2 is driven toward left movement, mandrel 81 is hauled and is driven workpiece 6 to pass through alloy
The sizing endoporus of drawing-die 71 realizes Compound Machining.
The forming principle and technical parameter of the method is as follows：
Under the powerful pulling force effect in complex centre, Nitinol pipe is set to be subject to mould and the strength of workpiece to extrude and produce
Permanent plastic deformation, so as to the purpose for realizing being combined into one with workpiece.The design calculation formula of its thickness amount of compression is as follows：
D (workpiece external diameter)+2 δ (alloy thickness of pipe wall 0.8mm)=D (mould calibrating strap internal diameter)+0.3mm (amount of compression).
After composite molding, a diameter of Φ 260 (the target size) -0.05mm of excircle of workpiece of acquisition.Conjunction is made in recombination process
Golden pipe produces the plastic deformation of 1.65mm.∑ (amount of plastic deformation)=2 δ (alloy thickness of pipe wall)+0.05mm.
A kind of cold extrusion Compositions of metal-working machines for below providing for the present embodiment, as shown in Figures 1 to 6, the cold extrusion is answered
Closing machining center includes lathe bed 1, alloy die holder 7, pincers mechanism of car 2 and hydraulic jack 3, and the front position of its medial bed 1 is provided with
Mobile workpiece holder 11, the workpiece holder 11 is used for being installed and supporting workpiece to be composite 6, alloy die holder 7 to be arranged on work
On the lathe bed 1 of the rear side of part bracing frame 11, alloy die holder 7 is used for installing the alloy drawing-die 71 with metering hole, in the present embodiment, closes
Golden drawing-die 71 includes diaphragm capsule 712, recovery board 711, hard alloy grinding tool 714, and hard alloy grinding tool 714 is fixed by pressing plate 713
In diaphragm capsule 712, recovery board 711 is arranged on the side of diaphragm capsule 712.Pincers mechanism of car 2 is arranged on lathe bed 1 by line slideway,
The pincers mechanism of car 2 is used for clamping the pull head (referring to Fig. 3) of workpiece to be composite, and pull head includes mandrel 81 and is fixed on the tail end of mandrel 81
Ring flange 82, pull head drives the tail end movement of live post body 61 by ring flange 82.Hydraulic jack 3 is arranged on the rear end of lathe bed 1,
Hydraulic jack 3 is used for driving pincers mechanism of car 2 that workpiece to be composite 6 is moved to pull on line slideway from the sizing of alloy drawing-die 71
It is extruded through in hole and then compo pipe generation plastic deformation is integral with carbon steel pipe surface recombination.
In addition, the rear end of lathe bed 1 is provided with oil cylinder seat 31, hydraulic jack 3 is assemblied on oil cylinder seat 31.In this programme, need
Ensure that liquid hydraulic jack 3, pincers mechanism of car 2, alloy die holder 7 and the center of workpiece 6 to be processed keep concentric.Near oil cylinder seat 31
Hydraulic power station 4 is provided with, hydraulic power station 4 is used for providing hydraulic oil to hydraulic jack 3.Line slideway is laid on alloy die holder
On the lathe bed of 7 rear sides.
Certainly, the cold extrusion Compositions of metal-working machines is controlled by numerically controlled control system 5.By designing a set of numerically controlled control system
5 controlling every regulation sexual act of cold extrusion Compositions of metal-working machines, and realizes whole workflow.
The cold extrusion Compositions of metal-working machines (also referred to as complex centre) manufactured and designed using this case, makes recombination process become simple
Efficiently, composite effect is stable, and the workpiece quality obtained after being combined is good, durable.By cold extrusion Compositions of metal-working machines, 0.8mm is made
Thick Nitinol pipe Jing cold extrusions produce plastic deformation, integral with carbon steel pipe surface recombination, and form anticorrosive coat.Its feature
It is as follows：
1. alloy pipe size precision is not required, tubulation shaping is easy.
2. the alloy-layer after being combined is extremely strong to the adhesive force of steel pipe, can reach the intensity being machined.
3. after being molded, gapless between two metal levels does not affect the sealing property and intensity on live post surface.
4. production efficiency is high, without percent defective.
Following table makees technology contrast with some performance indications and existing bushing method：
To sum up, the cold extrusion Compositions of metal-working machines of the present embodiment, is designed according to cold-stamped process principle, the equipment
Major function is to allow compo pipe to produce plastic deformation so as to change appearance and size, and with the appearance and size kissing of inner carbon steel tube
Close, gold alloy solder pipe size precision do not required, tubulation shaping is easy, and the alloy-layer after being combined is extremely strong to the adhesive force of steel pipe,
The intensity being machined can be reached.After shaping, gapless between two metal levels, do not affect live post surface sealing property and
Intensity, production efficiency is high, without percent defective.
It is aforementioned to the present invention specific illustrative embodiment description be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that the certain principles and its reality of the present invention should
With so that those skilled in the art can realize and using the present invention a variety of exemplaries and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of processing method of mining live post, live post that this is mining is tubular body, it is characterised in that the processing method includes as follows
Step：
Compound the cylindrical of place is needed to machine live post body, and cleaning, drying；
Compo pipe is rolled into sheet alloy, by the surface clean of the compo pipe and is dried；
The compo pipe is set on the live post body and then a kind of composite articles are formed；And
Pull the composite articles through the alloy drawing-die with metering hole, the internal diameter of the metering hole is less than the compo pipe
External diameter, when the composite articles are extruded through in the metering hole, the compo pipe produce plastic deformation and with the live post
The surface recombination of body is integral and then forms the mining live post.
2. the processing method with mining live post according to claim 1, it is characterised in that the composite articles are by drawing
Head drives the tail end of the live post body and then passes through the metering hole.
3. the processing method of mining live post according to claim 2, it is characterised in that pacify in the head of the live post body
Dress guide head, the compo pipe is fixed on the guide head, and it is described fixed that the composite articles are first partially passed through by its guide head
Footpath hole.
4. the processing method of mining live post according to claim 3, it is characterised in that the live post body is carbon steel pipe,
The compo pipe is Nitinol pipe.
5. the processing method of mining live post according to claim 4, it is characterised in that the Nitinol thickness of pipe 0.5-
2mm。
6. the processing method of mining live post according to claim 5, it is characterised in that the internal diameter of the metering hole is less than institute
State the external diameter 0.25mm～0.4mm of compo pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185312.XA CN106624642A (en) | 2016-12-20 | 2016-12-20 | Machining method for mine movable column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185312.XA CN106624642A (en) | 2016-12-20 | 2016-12-20 | Machining method for mine movable column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106624642A true CN106624642A (en) | 2017-05-10 |
Family
ID=58834133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611185312.XA Pending CN106624642A (en) | 2016-12-20 | 2016-12-20 | Machining method for mine movable column |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687080A (en) * | 1992-08-06 | 1994-03-29 | Yao Chin Kuu | Method for manufacture of austenitic stainless steel composite tapped and drilled thread |
| CN1621725A (en) * | 2003-11-27 | 2005-06-01 | 李西海 | Metal-plastic composite cold/hot water pipe and manufacturing method thereof |
| CN102240893A (en) * | 2011-05-27 | 2011-11-16 | 自贡市巨光硬面材料有限公司 | Technology for manufacturing hard alloy thin-wall shaft sleeve |
| CN102950428A (en) * | 2012-10-23 | 2013-03-06 | 铜陵科海光电技术有限公司 | Processing method of plastic die steel plate |
| CN102953019A (en) * | 2012-09-25 | 2013-03-06 | 无锡润丰特种钢管有限公司 | Alloy steel seamless steel tube for geological drilling and machining method thereof |
| CN104760351A (en) * | 2015-04-07 | 2015-07-08 | 首钢总公司 | Carbon steel and austenitic stainless steel combined steel plate and production method thereof |
| CN104988988A (en) * | 2015-07-10 | 2015-10-21 | 安徽富煌钢构股份有限公司 | Corner column structure and machining method thereof |
-
2016
- 2016-12-20 CN CN201611185312.XA patent/CN106624642A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687080A (en) * | 1992-08-06 | 1994-03-29 | Yao Chin Kuu | Method for manufacture of austenitic stainless steel composite tapped and drilled thread |
| CN1621725A (en) * | 2003-11-27 | 2005-06-01 | 李西海 | Metal-plastic composite cold/hot water pipe and manufacturing method thereof |
| CN102240893A (en) * | 2011-05-27 | 2011-11-16 | 自贡市巨光硬面材料有限公司 | Technology for manufacturing hard alloy thin-wall shaft sleeve |
| CN102953019A (en) * | 2012-09-25 | 2013-03-06 | 无锡润丰特种钢管有限公司 | Alloy steel seamless steel tube for geological drilling and machining method thereof |
| CN102950428A (en) * | 2012-10-23 | 2013-03-06 | 铜陵科海光电技术有限公司 | Processing method of plastic die steel plate |
| CN104760351A (en) * | 2015-04-07 | 2015-07-08 | 首钢总公司 | Carbon steel and austenitic stainless steel combined steel plate and production method thereof |
| CN104988988A (en) * | 2015-07-10 | 2015-10-21 | 安徽富煌钢构股份有限公司 | Corner column structure and machining method thereof |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171016 Address after: 031400, Linfen, Shanxi province Huozhou City Xin Zhen town machinery repair factory Applicant after: Albert long Shanxi Environmental Protection Technology Co., Ltd. Address before: 201708, No. 900, Lane 161, Xinfeng North Road, Huaxin Town, Qingpu District, Shanghai Applicant before: Xiang Wubo Applicant before: Albert long Shanxi Environmental Protection Technology Co., Ltd. |
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Application publication date: 20170510 |
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