CN104624833B - A kind of back-bending machine guide roller - Google Patents
A kind of back-bending machine guide roller Download PDFInfo
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- CN104624833B CN104624833B CN201410830312.5A CN201410830312A CN104624833B CN 104624833 B CN104624833 B CN 104624833B CN 201410830312 A CN201410830312 A CN 201410830312A CN 104624833 B CN104624833 B CN 104624833B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a kind of back-bending machine guide roller, belong to back-bending machine field, when it has solved prior art processing heavy caliber, large wall thickness, high pressure resistant steel pipe because carrying unstable and of low quality problem. The inventive system comprises guiding carrying roller, roller bearing, roller shaft seat and guide support, guiding carrying roller is arranged on roller bearing, and roller bearing is arranged on roller shaft seat; Roller shaft seat is arranged on guide support; Guiding carrying roller is truncated cone-shaped, and quantity has two; The guiding carrying roller of two truncated cone-shaped is arranged on roller bearing in the relative mode of upper bottom surface; In the middle of the guiding carrying roller of two truncated cone-shaped, be provided with directive wheel; Directive wheel is discoid, and the thickness in centre is greater than the thickness of edge. Device of the present invention can accurately be found the center of gravity of steel pipe to be processed accurately, and steel pipe opening is remained on same straight line, has greatly increased the stability that steel pipe is carried, and has improved the crudy of steel pipe.
Description
Technical field
The invention belongs to back-bending machine field, specifically, relate to a kind of back-bending machine guide roller.
Background technology
Back-bending machine is the capital equipment in a kind of operation being used in after processing steel pipe bending and molding, due to the limitation of bender moulding,There are two straight flanges in opening steel pipe after bending and molding, back-bending machine is mainly rolled into the straight flange of opening steel pipe the circularity that meets the requirementsOpening steel pipe. The steel pipe that back-bending machine is processed is mainly used on the conveyance conduits such as natural gas, due to its diameter of steel tube of processingLarger, tube wall is thicker, and voltage endurance capability requires high, thus the stability of back-bending machine is had relatively high expectations, again because back-bending machine addsThe steel pipe of work is long, weight is larger, thus require palintrope function accurately to find the center of gravity of steel pipe accurately, and the moment keeps the opening of steel pipeAll the time on same straight line; How to improve the stability of back-bending machine, accurately find steel pipe center of gravity, and keep steel pipe opening to exist all the timeOn same straight line, become and improve constantly the key issue that steel pipe palintrope quality will solve.
China Patent No. 200520065402.6, the patent document in open day on November 1st, 2006, discloses a kind of back-bending machineBelong to metallic plate machine-shaping field, it by structural framing, conveying carrier roller group mechanism, space drag chain pipe drawing mechanism, thruster mechanism,Liquid electric control system composition, roll forming mechanism is made up of roll-in wheel set, middle arm-tie seat, bearing block, running roller support, roll extrusionThe roll-in wheel set of shaping mechanism is to be become with lower level rolling wheel set by upper rolling wheel set, and lower rolling wheel set is arranged on running roller support, upper rolling wheel setWith the profile of lower rolling wheel set be arc, two edges of boards of steel pipe joint move respectively between upper rolling wheel set and lower rolling wheel set, this is realReasonable in design with new structure, be the back-bending machine that a kind of format roll roll extrusion of full-automation makes socket edges of boards crimp, but its structure is multipleAssorted, bulky, floor space is larger, and manufacturing cost is high.
China Patent No. 201120194015.8, the patent document in open day on February 9th, 2012, discloses a kind of back-bending machine,Comprise structural framing, conveying carrier roller group mechanism is installed on structural framing, in the inter-agency roll forming mechanism that is provided with of conveying carrier roller group,Roll forming mechanism comprises roll-in wheel set, and the upper rolling wheel set of roll-in wheel set and lower rolling wheel set are arranged on respectively the centre on structural framingOn arm-tie and roll-in support, upper rolling wheel set is for protruding arc wheel face, and lower rolling wheel set is indent arc wheel face; One side of lower rolling wheel setBe connected with planet-gear speed reducer, planet-gear speed reducer is connected with power source; Be provided with in the front of roll forming mechanism and expand seam machineStructure; Be provided with the press mechanism for pushing down product in the front of roll forming mechanism; Middle arm-tie one side is connected with elevating mechanism;Be provided with the thruster mechanism for releasing roll-in support in a side of structural framing. This utility model reasonable in design, can be effective" peach-shaped " phenomenon of avoiding tube product; Adopt various auxiliary bodies, the production efficiency that can effectively increase back-bending machine withAnd the quality of production. But this utility model structure is more complicated, still exist job stability bad, steel pipe center of gravity is easily offset, steelPipe is carried the problem of sideslip.
Summary of the invention
The problem that 1, will solve
Unstable during for prior art processing heavy caliber, large wall thickness, high pressure resistant steel pipe, center of gravity is easily offset, and steel pipe is carried and runPartially, thereby affect the problem of steel pipe's production quality, the invention provides a kind of back-bending machine guide roller, manufacture by the inventive methodDevice precision high, wearability good, long service life, its device can accurately be found the center of gravity of steel pipe to be processed accurately, and makes steel pipeOpening remains on same straight line, has greatly increased the stability that steel pipe is carried, and has improved the crudy of steel pipe.
2, technical scheme
For addressing the above problem, the present invention adopts following technical scheme.
A kind of back-bending machine guide roller, comprises guiding carrying roller, roller bearing, roller shaft seat and guide support, and described guiding carrying roller is installedOn roller bearing, described roller bearing is arranged on roller shaft seat; Described roller shaft seat is two, is arranged on symmetrically on guide support;Described guiding carrying roller is truncated cone-shaped, and one, two ends are upper bottom surface, one is bottom surface, and the diameter of upper bottom surface is less than bottom surfaceDiameter; The quantity of guiding carrying roller has two; The guiding carrying roller of two described truncated cone-shaped is arranged on and rolls in the relative mode of upper bottom surfaceOn axle; In the middle of the guiding carrying roller of two described truncated cone-shaped, be provided with directive wheel; Described directive wheel is discoid, centreThickness is greater than the thickness of edge.
Preferably, the diameter of described directive wheel is 1.2 times of guiding carrying roller bottom surface diameter.
Preferably, described guiding carrying roller surface is 30 ° with the angle of inclination of horizontal plane.
Preferably, in described roller shaft seat, be provided with sliding bearing; Described roller bearing is connected with roller shaft seat by sliding bearing.
Preferably, described roller bearing is provided with keyway; Described guiding carrying roller, directive wheel and roller bearing are interference fit, and pass throughKey connects.
In order to improve impact strength, wearability and the service life of guiding carrying roller, treat thereby improve apparatus of the present invention performance conveyingThe reliability of steady, the accurate advantage of processing steel pipe, spy adopts special processing method as follows to guiding carrying roller:
A manufacture method for the guiding carrying roller of guide roller for back-bending machine, the steps include:
A raw material are prepared: component and the percentage by weight of the material that guiding carrying roller adopts are: C:1.80%-2.11%, and Si:1.8%-2.6%, Mn:0.9%-1.3%, Cr:0.70～1.10%, S≤0.05%, P≤0.05%, surplus is Fe;
B heat treatment: the rough forging in steps A is adopted to annealing in process, and annealing temperature is 720-760 DEG C, 2-3 is little in insulationTime, air cooling;
C preliminary working: the global shape that the rough forging after heat treatment in step B is become to guiding carrying roller with lathe preliminary working;
D modifier treatment: it is 830-850 DEG C that the guiding carrying roller after step C preliminary working is heated to temperature, insulation 1-2 hour,Shrend;
E deep processing: by the guiding carrying roller fine grinding outer surface after modifier treatment in step D;
The processing of F overlay coating, by the guiding carrying roller built-up welding one deck wearing layer obtaining through deep processing in step e, obtains guiding holderRoller.
Preferably, described wearing layer comprises transition zone and superficial layer, first welding transition layer, then built-up welding superficial layer, transition zoneThickness is 3 – 5mm, and transition zone adopts EDCrMn-B-16 welding rod.
Preferably, described superficial layer is selected flux-cored wire; Described flux-cored wire comprises carbon steel crust and medicine core, described carbon steelQuality account for 60～68% of whole flux-cored wire gross mass, described medicine core raw material component and mass percent thereof are: the trade mark isThe chromic carbide iron of FeCr55C6: 15-23%, the ferrosilicon that the trade mark is FeSi90Al3.0: 8.2-9.1%, Mn powder: 1.5%-2.5%,Ni powder 5.0-6.8%, W powder: 7.0-7.8%, the molybdenum-iron 6.5-7.3% that Mo mass fraction is 53%, surplus is iron powder.
Preferably, before described flux-cored wire built-up welding, at the temperature of 360-380 DEG C, dry 45-80min.
Preferably, described built-up welding adopts manual electric arc welding, its welding current≤135A.
3, beneficial effect
Than prior art, beneficial effect of the present invention is:
(1) the present invention includes guiding carrying roller, roller bearing, roller shaft seat and guide support, guiding carrying roller is arranged on roller bearing, roller bearing peaceBe contained on roller shaft seat; Roller shaft seat is two, is arranged on symmetrically on guide support; Guiding carrying roller is truncated cone-shaped, and one, two ends areUpper bottom surface, one is bottom surface, the diameter of upper bottom surface is less than the diameter of bottom surface; The quantity of guiding carrying roller has two; Two circlesThe guiding carrying roller of platform shape is arranged on roller bearing in the relative mode of upper bottom surface, and the guiding carrying roller of two truncated cone-shaped forms V font, energyEnough make the center of gravity of steel pipe to be processed more stable, thereby make course of conveying more steadily with accurate; The guiding carrying roller of two truncated cone-shapedCentre is provided with directive wheel; Directive wheel is discoid, and the thickness in centre is greater than the thickness of edge, and directive wheel can be defeatedWhile sending steel pipe to be processed, play the effect of location and guiding; Device of the present invention adopts the guiding carrier roller combination of two truncated cone-shaped to become VFont supports carries steel pipe to be processed, utilizes discoid directive wheel location and guiding, has improved the delivery precision of steel pipe to be processed,Directive wheel can be stablized the center of gravity of steel pipe to be processed, and steel pipe opening is remained on same straight line, has greatly increased steel pipeThe stability of carrying, has improved the crudy of steel pipe;
(2) diameter of the directive wheel of apparatus of the present invention is 1.2 times of guiding carrying roller bottom surface diameter, and guiding carrying roller can supportThe height of C.G. of large diameter steel pipe to be processed is less than the radius of directive wheel, the center of gravity that makes steel pipe to be processed in course of conveying all the timeIn the scope of controlling in directive wheel, guarantee the stationarity of course of conveying;
(3) the guiding carrying roller of apparatus of the present invention surface is 30 ° with the angle of inclination of horizontal plane, is guaranteeing carried steel to be processedWhen pipe stability, can make the center of gravity of steel pipe to be processed lower, thus while more easily keeping steel pipe to be processed to carry all the time at oneOn straight line;
(4) in the roller shaft seat of apparatus of the present invention, be provided with sliding bearing; Roller bearing is connected with roller shaft seat by sliding bearing, sliding bearingMore stable when connection makes apparatus of the present invention operation, can further improve the precision of carrying steel pipe to be processed;
(5) roller bearing of apparatus of the present invention is provided with keyway; Guiding carrying roller, directive wheel and roller bearing are interference fit, and connect by keyConnect, adopt dismounting, the maintenance of key apparatus of the present invention easy to connect, and simple in structure, centering is good; Employing interference fit hasSimple in structure, centering property is good, and bearing capacity is high, the load that can withstand shocks, and the advantage little to the strength reduction of axle, thus make thisContrive equipment is more stable and accurate in the time carrying steel pipe to be processed;
(6) the guiding carrying roller of the inventive method manufacturing adopts special material and Technology for Heating Processing, has Stability Analysis of Structures, rigidityBy force, shock-resistant ability is high, and anti-wear performance is good, the advantage of long service life, thereby while making apparatus of the present invention carry steel pipe to be processedPlay stably, accurate advantage is more reliable;
(7) the inventive method has adopted special welding wire, and wearability is higher.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
In figure: 1, directive wheel; 2, guiding carrying roller; 3, roller bearing; 4, roller shaft seat; 5, guide support.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
Embodiment 1
As shown in Figure 1, a kind of back-bending machine guide roller, comprises guiding carrying roller 2, roller bearing 3, roller shaft seat 4 and guide support 5,Roller bearing 3 is provided with keyway; Guiding carrying roller 2 is mounted on roller bearing 3 by key, and guiding carrying roller 2 and roller bearing 3 are joined for interferenceClose; In roller shaft seat 4, be provided with sliding bearing; Roller bearing 3 is connected with roller shaft seat 4 by sliding bearing, and roller shaft seat 4 is two, rightClaim to be arranged on guide support 5; Guiding carrying roller 2 is truncated cone-shaped, and one, two ends are upper bottom surface, and one is bottom surface, upper baseThe diameter of face is 400mm, and the diameter of bottom surface is 900mm, and guiding carrying roller 2 surfaces are 30 ° with the angle of inclination of horizontal plane;The quantity of guiding carrying roller 2 has two; The guiding carrying roller 2 of two truncated cone-shaped is arranged on roller bearing 3 in the relative mode of upper bottom surface;In the middle of the guiding carrying roller 2 of two truncated cone-shaped, be provided with directive wheel 1; Directive wheel 1 is interference fit with roller bearing 3; Directive wheel 1 is circlePlate-like, the thickness in centre is greater than the thickness of edge, and the diameter of directive wheel 1 is 1080mm.
A manufacture method for the guiding carrying roller of guide roller for back-bending machine, the steps include:
A raw material are prepared: component and the percentage by weight of the material that guiding carrying roller adopts are: C:1.95%, and Si:2.2%,Mn:1.1%, Cr:0.95%, S≤0.05%, P≤0.05%, surplus is Fe;
B heat treatment: the rough forging in steps A is adopted to annealing in process, and annealing temperature is 740 DEG C, is incubated 2.5 hours,Air cooling;
C preliminary working: the global shape that the rough forging after heat treatment in step B is become to guiding carrying roller with lathe preliminary working;
D modifier treatment: it is 840 DEG C that the guiding carrying roller after step C preliminary working is heated to temperature, is incubated 1.5 hours, waterQuench;
E deep processing: by the guiding carrying roller fine grinding outer surface after modifier treatment in step D;
The processing of F overlay coating, by the guiding carrying roller built-up welding one deck wearing layer obtaining through deep processing in step e, wearing layer comprisesTransition zone and superficial layer, built-up welding adopts manual electric arc welding, and its welding current is adjusted into 135A, and concrete steps are:
1) first welding transition layer, transition zone adopts EDCrMn-B-16 welding rod, manual electric arc welding built-up welding three times, built-up welding for the first timeThickness is 1mm, and built-up welding thickness is 2mm for the second time, and built-up welding thickness is 1mm for the third time;
2) built-up welding superficial layer again, superficial layer is selected flux-cored wire; Flux-cored wire comprises carbon steel crust and medicine core, the quality of carbon steelAccount for 64% of whole flux-cored wire gross mass, medicine core raw material component and mass percent thereof are: micro-carbon that the trade mark is FeCr55C6Ferrochrome: 19%, the ferrosilicon that the trade mark is FeSi90Al3.0: 8.6%, Mn powder: 2.1%, Ni powder 5.9%, W powder: 7.4%,Mo mass fraction is 53% molybdenum-iron 6.9%, and surplus is iron powder, first will before flux-cored wire built-up welding, at the temperature of 370 DEG C, dryDry 60min, then completes built-up welding by submerged-arc welding is disposable, built-up welding superficial layer, and the thickness of superficial layer is 2.5mm, is ledTo carrying roller.
When apparatus of the present invention are used, should prepare 8 above quantity simultaneously, be arranged on same straight line, steel pipe to be processed is putPut on the guiding carrying roller 2 of apparatus of the present invention, drive guiding carrying roller 2 to rotate by power set, the rotation band of guiding carrying roller 2The rectilinear motion that moving steel pipe to be processed is located along directive wheel 1, enters second device, and second device drives by power setGuiding carrying roller 2 drives steel pipe to be processed to be delivered to the 3rd device, so constantly transmits, and steel pipe to be processed is finally accurately sentEnter and on back-bending machine main frame, carry out crimp processing, thereby obtain high-quality fished pipe. The lead manufacture method of carrying roller 2 of the present inventionThe guiding carrying roller 2 obtaining has very high shock-resistant ability, and rigidity is strong, and surface abrasion resistance is good, and in the time that reality is used, it makesUse for up to 10 months, can carry steel pipe more than 10,000 roots to be processed, improve 65% than common material service life.
Embodiment 2
A manufacture method for the guiding carrying roller of guide roller for back-bending machine, the steps include:
A raw material are prepared: component and the percentage by weight of the material that guiding carrying roller adopts are: C:1.80%, and Si:2.6%,Mn:0.9%, Cr:1.10%, S≤0.05%, P≤0.05%, surplus is Fe;
B heat treatment: the rough forging in steps A is adopted to annealing in process, and annealing temperature is 720 DEG C, is incubated 2 hours, skyCold;
C preliminary working: the global shape that the rough forging after heat treatment in step B is become to guiding carrying roller with lathe preliminary working;
D modifier treatment: it is 830 DEG C that the guiding carrying roller after step C preliminary working is heated to temperature, is incubated 1 hour, shrend;
E deep processing: by the guiding carrying roller fine grinding outer surface after modifier treatment in step D;
The processing of F overlay coating, by the guiding carrying roller built-up welding one deck wearing layer obtaining through deep processing in step e, wearing layer comprisesTransition zone and superficial layer, built-up welding adopts manual electric arc welding, and its welding current is adjusted into 120A, and concrete steps are:
1) first welding transition layer, transition zone adopts EDCrMn-B-16 welding rod, manual electric arc welding built-up welding three times, built-up welding for the first timeThickness is 1.5mm, and built-up welding thickness is 1mm for the second time, and built-up welding thickness is 1.5mm for the third time;
2) built-up welding superficial layer again, superficial layer is selected flux-cored wire; Flux-cored wire comprises carbon steel crust and medicine core, the quality of carbon steelAccount for 60% of whole flux-cored wire gross mass, medicine core raw material component and mass percent thereof are: micro-carbon that the trade mark is FeCr55C6Ferrochrome: 15%, the ferrosilicon that the trade mark is FeSi90Al3.0: 9.1%, Mn powder: 1.5%, Ni powder 6.8%, W powder: 7.0%,Mo mass fraction is 53% molybdenum-iron 7.3%, and surplus is iron powder, first will before flux-cored wire built-up welding, at the temperature of 360 DEG C, dryDry 80min, then completes built-up welding by submerged-arc welding is disposable, built-up welding superficial layer, and the thickness of superficial layer is 2mm, is ledCarrying roller. Improve 50% than common material service life.
Embodiment 3
A manufacture method for the guiding carrying roller of guide roller for back-bending machine, the steps include:
A raw material are prepared: component and the percentage by weight of the material that guiding carrying roller adopts are: C:2.11%, and Si:1.8%,Mn:1.3%, Cr:0.70%, S≤0.05%, P≤0.05%, surplus is Fe;
B heat treatment: the rough forging in steps A is adopted to annealing in process, and annealing temperature is 760 DEG C, is incubated 3 hours, skyCold;
C preliminary working: the global shape that the rough forging after heat treatment in step B is become to guiding carrying roller with lathe preliminary working;
D modifier treatment: it is 850 DEG C that the guiding carrying roller after step C preliminary working is heated to temperature, is incubated 2 hours, shrend;
E deep processing: by the guiding carrying roller fine grinding outer surface after modifier treatment in step D;
The processing of F overlay coating, by the guiding carrying roller built-up welding one deck wearing layer obtaining through deep processing in step e, wearing layer comprisesTransition zone and superficial layer, built-up welding adopts manual electric arc welding, and its welding current is adjusted into 110A, and concrete steps are:
1) first welding transition layer, transition zone adopts EDCrMn-B-16 welding rod, manual electric arc welding built-up welding twice, for the first time built-up weldingThickness is 1mm, and built-up welding thickness is 2mm for the second time;
2) built-up welding superficial layer again, superficial layer is selected flux-cored wire; Flux-cored wire comprises carbon steel crust and medicine core, the quality of carbon steelAccount for 68% of whole flux-cored wire gross mass, medicine core raw material component and mass percent thereof are: micro-carbon that the trade mark is FeCr55C6Ferrochrome: 23%, the ferrosilicon that the trade mark is FeSi90Al3.0: 8.2%, Mn powder: 2.5%, Ni powder 5.0%, W powder: 7.8%,Mo mass fraction is 53% molybdenum-iron 6.5%, and surplus is iron powder, first will before flux-cored wire built-up welding, at the temperature of 380 DEG C, dryDry 45min, then, by the submerged-arc welding superficial layer built-up welding that makes two bites at a cherry, thickness is 1.5mm for the first time, 1mm for the second time,To guiding carrying roller. Improve 70% than common material service life.
Claims (5)
1. a back-bending machine guide roller, comprises guiding carrying roller (2), roller bearing (3), roller shaft seat (4) and guide support (5),It is upper that described guiding carrying roller (2) is arranged on roller bearing (3), and described roller bearing (3) is arranged on roller shaft seat (4); DescribedRoller shaft seat (4) is two, is arranged on symmetrically guide support (5) upper, it is characterized in that: described guiding carrying roller (2) isTruncated cone-shaped, one, two ends are upper bottom surface, and one is bottom surface, and the diameter of upper bottom surface is less than the diameter of bottom surface; Guiding carrying roller (2)Quantity have two; The guiding carrying roller (2) of two described truncated cone-shaped is arranged on roller bearing (3) in the relative mode of upper bottom surface;In the middle of the guiding carrying roller (2) of two described truncated cone-shaped, be provided with directive wheel (1); Described directive wheel (1) is discoid, inThe thickness at heart position is greater than the thickness of edge.
2. a kind of back-bending machine guide roller according to claim 1, is characterized in that: described directive wheel (1) straightFootpath is 1.2 times of guiding carrying roller (2) bottom surface diameter.
3. a kind of back-bending machine guide roller according to claim 1, is characterized in that: described guiding carrying roller (2) tableThe angle of inclination of face and horizontal plane is 30 °.
4. a kind of back-bending machine guide roller according to claim 1, is characterized in that: in described roller shaft seat (4), establishThere is sliding bearing; Described roller bearing (3) is connected with roller shaft seat (4) by sliding bearing.
5. according to a kind of back-bending machine guide roller described in any one in claim 1-4, it is characterized in that: described roller bearing(3) be provided with keyway; Described guiding carrying roller (2), directive wheel (1) are interference fit with roller bearing (3), and pass through keyConnect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610028325.XA CN105436836B (en) | 2014-12-25 | 2014-12-25 | The manufacture method of carrying roller is oriented in a kind of back-bending machine guide roller |
| CN201410830312.5A CN104624833B (en) | 2014-12-25 | 2014-12-25 | A kind of back-bending machine guide roller |
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| CN201410830312.5A CN104624833B (en) | 2014-12-25 | 2014-12-25 | A kind of back-bending machine guide roller |
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| CN201610028325.XA Division CN105436836B (en) | 2014-12-25 | 2014-12-25 | The manufacture method of carrying roller is oriented in a kind of back-bending machine guide roller |
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| CN107252862A (en) * | 2017-01-17 | 2017-10-17 | 佛山常百乐机械设计有限公司 | A kind of transmitting device of the moment reinforcement with detector |
| CN107252861A (en) * | 2017-01-17 | 2017-10-17 | 佛山常百乐机械设计有限公司 | A kind of transmitting device for the moment reinforcement that can realize brake hard |
| CN110549252A (en) * | 2019-08-15 | 2019-12-10 | 南京钢铁股份有限公司 | Roller way preparation method for preventing shot from being pressed into steel plate in shot blasting chamber |
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| DE102009038302A1 (en) * | 2009-08-21 | 2011-02-24 | Behr Gmbh & Co. Kg | Pressure welding device for forming a tube made of tubularly bent strips, comprises compressing rollers formed for conveying the strips and for compressing two edges of the strips, and a drive unit to drive one of the compressing rollers |
| CN102134683A (en) * | 2011-02-16 | 2011-07-27 | 合肥东方冶金设备有限公司 | Guide roller and preparation technique thereof |
| CN102430621A (en) * | 2011-06-10 | 2012-05-02 | 苏州九方焊割科技有限公司 | Back-bending machine |
| CN202146933U (en) * | 2011-06-30 | 2012-02-22 | 安徽中瑞机床制造有限公司 | Backward-bending machine for steel tube |
| CN103008050A (en) * | 2012-10-23 | 2013-04-03 | 河北华宇法兰制造有限公司 | Surfacing-free centrifugal combined ultra-high anti-abrasion roll squeezer roller sleeve and manufacturing method thereof |
| CN204338751U (en) * | 2014-12-25 | 2015-05-20 | 安徽五洋机床制造有限公司 | A kind of back-bending machine guide roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105436836B (en) | 2017-11-28 |
| CN104624833A (en) | 2015-05-20 |
| CN105436836A (en) | 2016-03-30 |
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