CN101733281A - Mill for cold rolling of pipes - Google Patents
Mill for cold rolling of pipes Download PDFInfo
- Publication number
- CN101733281A CN101733281A CN200910265885A CN200910265885A CN101733281A CN 101733281 A CN101733281 A CN 101733281A CN 200910265885 A CN200910265885 A CN 200910265885A CN 200910265885 A CN200910265885 A CN 200910265885A CN 101733281 A CN101733281 A CN 101733281A
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- CN
- China
- Prior art keywords
- roller
- connecting rod
- roller case
- cartridge
- cold pilger
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- Metal Rolling (AREA)
Abstract
The invention relates to a mill for cold rolling of pipes. A working stand is installed on a guide device of a frame of the mill for cold rolling of pipes. The working stand comprises movable power bed plate, rack bars and a movable cartridge. A lever drive device has two pairs of connecting rods. One pair of connecting rods is connected to movable power bed plate, and the other one is connected to the movable cartridge. Body of cartridge consists of two parts, in one part of which rollers and gears are installed, and the other part of body is connected to the second pair of connecting rods. Both parts of cartridge body are fixed to each other by means of three fingers. The working stand is equipped with a guide bushing which aligns both parts of cartridge body. A cartridge connecting rod locking device is in a support lead screw type and is fastened on the holder of the frame. The holder is also equipped with the support lead screw for the whole cartridge. A power bed plate connecting rod locking device is in a holder type and is hinged with a drawing lead screw on the frame. In addition, a hydraulic operation device is equipped for supporting the cartridge and changing the carrying device and the movable bed plate. The invention makes it possible to reduce labour intensiveness of cartridge changing.
Description
Technical field
The present invention relates to the cold rolled tube production field, exactly, the cold pilger mill that has portable power base and roller case with work housing is relevant, relates to changing the outfit of roller case.
Background technology
Known cold pilger mill, Russian Patent number: 349429, Patent classificating number: B21B 31/08, the applying date: on February 25th, 1971, open date: on September 4th, 1972.This cold pilger mill includes framework and work housing, and work housing has fixed base, portable roller case and two connecting rods, and connecting rod has connecting axle, and is connected with the portable roller case that has driving by connecting axle.Be pressed into the connecting rod shaft that extrudes the work housing the inside, need two specific purpose tools.
The major defect of known cold pilger mill is, when producing large-diameter steel pipe, the workload that changes the outfit of roller case is big, reason is, when being pressed into the connecting axle that extrudes connecting rod and roller case, need two specific purpose tools, these two specific purpose tools are the same with connecting axle, have only the crane of use just to dismantle and install, because the weight of parts is more than 50 kilograms.
In addition, the structural disadvantages of this cold pilger mill is, needs correspondingly to extract out the pitman shaft that has the interference fit cylindrical surface when the roller case changes the outfit, and this can make a tension of engagement rapidly disappear, weaken cooperations, need to make new that has new matching surface.
In known cold pilger mill, technical immediate be cold pilger mill described in the patent № of the Russian Federation 2286219, Patent classificating number: B21B applied for that on October 27th, 2006 delivered on April 5th, 13/18,2005.
The framework that this cold pilger mill comprises has guider, work housing has portable power base, tooth bar and portable roller case, three rolls and gear are arranged in the roller tank shell, the lever drive unit has two pairs of connecting rods that have connecting axle, the locking device of also dynamic base and roller case connecting rod, and two specific purpose tools that are pressed into extrusion for connecting rod shaft.
The main structural disadvantages of this cold pilger mill is, when producing large-diameter steel pipe, the workload that the roller case changes the outfit strengthens, because the size of lever drive unit, roller case, connecting rod and connecting axle thereof and weight improve, itself all must use crane just can dismantle and installation exercise so be pressed into the specific purpose tool and the axle that extrude connecting rod shaft.
In addition, the shortcoming of work housing structure is the same with above-mentioned known cold pilger mill, need correspondingly extract connecting rod shaft out when the roller case changes the outfit, and this can make a tension of engagement rapidly disappear, and weakens to cooperate, and needs to make the new axle that has new matching surface.
Summary of the invention
Task of the present invention will provide a kind of cold pilger mill exactly, makes it reduce the workload that the roller case changes the outfit when producing large-diameter steel pipe.
Task of the present invention is finished by following method: the framework that comprises in the known cold pilger mill has guider, work housing is installed on guider, work housing has portable power base, tooth bar and portable roller case, be provided with three groups of rolls and gear in the roller tank shell, the lever drive unit has two pairs of connecting rods, connecting rod has connecting axle, and first pair of connecting rod links to each other with portable power base, second pair of connecting rod links to each other with portable roller case, the locking device that also contains dynamic base and roller case connecting rod, according to the present invention, roller tank shell in the work housing is made detachable, constitute by two parts, a part is wherein directly placed roll and gear, and another part of roller tank shell links to each other with second pair of connecting rod, and fix with three pin rods between two parts of roller tank shell, wherein two pin rods be inserted in the cylindrical pin-and-hole and with the pin-and-hole matched in clearance, another root pin rod can slide in oval slotted eye, and all be provided with voussoir and wheel chock in each root pin rod, in addition, fairlead is equipped with on the work housing of cold pilger mill, fairlead is arranged along rolling axis, and be rigidly fixed on that part of roller tank shell that has roll and gear, fairlead has concentric pillow block, with one heart pillow block is fitted on that part of roller tank shell that is connected with connecting rod in the borehole, the hydraulic control unit that cold pilger mill also is equipped with the roller case that changes the outfit to use with supporting and Handling device and mobile power base, it is shaft-like that the locking device of all roller case connecting rods is all made supporting wire, and be installed on the support set on the cold pilger mill framework, and also be furnished with support screw on this support so that the pair roller case supports.Supporting of roller case and Handling device are made typical level type, are provided with two hook and suspension ring of hanging usefulness above, also dead lock will be arranged, and dead lock has screw mandrel and locator.The locking device of power base connecting rod is all made the support shape, is articulated and connected with the traction screw mandrel that is fixed on the framework.
When producing large-diameter steel pipe, why the workload that changes the outfit of cold pilger mill roller case can reduce, first, be that the roller tank shell is made bipartite detachable type, therefore because in the work housing structure of cold pilger mill, what link to each other with connecting rod is not whole roller case, but its part, this part of roller case links to each other by three pin rods with its another part, and in each root pin rod voussoir and wheel chock is installed all.When the roller case changes the outfit, connecting rod can be taken from the roller tank shell like this, separately two parts of roller tank shell.Because the weight of parts all less than 25 kilograms, does not need crane for this reason,, do not need the connecting rod shaft between connecting rod and the roller tank shell is extracted out as long as there is screw jack just can from pin rod, unload voussoir down successively with hand yet.
The second, be because in the process that changes the outfit, what roller case connecting rod adopted is simple locking device easy to maintenance, and is to be arranged on the support with the screw mandrel supporting form.In addition, these devices can be with screw mandrel backing roll tank shell in the process of changing the outfit.
The 3rd, be because in its structure, adopted supporting of roller case and Handling device, it can help to be fixed with that part of roller tank shell of roll, up to another part housing that is connected with connecting rod is taken, and transport to the roller case workbench that changes the outfit, that part of roller tank shell of the roll that changed the outfit can also be transported to work housing with this device.This device has been arranged, can alleviate the weight of roller case,, and can also unload lever driving device like this, reduced power consumption, also reduced the processing capacity of roller case because there has not been the transporting and hoisting ring on its housing.
The 4th, be because in its structure, adopted hydraulic control unit, it can help a power base to move on to the centre position earlier, roll in this pair roller case is fixed, and that part of roller tank shell that is being connected with connecting rod does not also separate, then the power base is moved on to the final position of back, rolling district, this carry out the roller tank shell two-part final separately, and that part of housing that has roll and gear taken away from work housing.
Description of drawings
For invention is made an explanation, enumerate the instantiation that a present invention uses below, and have drawing:
Figure 1 shows that the cold pilger mill profile;
Figure 2 shows that the cold pilger mill plane;
Fig. 3 is an A-A cutaway view among Fig. 1;
Fig. 4 is Б among Fig. 2-Б cutaway view, and connecting rod is taken from base among the figure;
Fig. 5 is the B portion view among Fig. 4;
Fig. 6 is Γ among Fig. 5-Γ cutaway view;
Fig. 7 is Д among Fig. 5-Д cutaway view;
Fig. 8 is an E-E cutaway view among Fig. 4;
Fig. 9 is Б among Fig. 2-Б cutaway view, and base is moved on to the final position by hydraulic transmission among the figure;
Figure 10 is Б among Fig. 2-Б cutaway view, and figure central roll case is fixed on that its holder is held, on the conveying arrangement;
Figure 11 is Б among Fig. 2-Б cutaway view, and figure central roll tank shell two parts separately are with that part of housing of roll and gear to be removed;
Figure 12 is the Ж portion view among Figure 11, and that part of roller tank shell that has roll and gear among the figure takes that hold with the holder of roller case the back, conveying arrangement is in the same place.
The specific embodiment
The framework 1 that comprises in the cold pilger mill has guider 2, work housing 3; Work housing 3 comprises portable power base 4, tooth bar 5 and portable roller case 6, the roller tank shell is a detachable type, form by 7,8 two parts, and three groups of rolls 9 and gear 10 are arranged in the part 7 of housing, another part 8 of roller tank shell links to each other with pair of links 11 by connecting axle 12, the fairlead 13 that the cooling tube rolling passes through arranges that along rolling central axis pair of links 14 is fixed on the power base 4 by connecting axle 15; Also have lever drive unit 16, the locking device of the connecting rod 11 of roller case 6 and power base connecting rod 14, the hydraulic control unit of base 4 usefulness that change the outfit and have roll 9 and the supporting and the Handling device of those a part of roller case 6 housings 7 of gear 10.
Connect by three pin rods 17 between two parts 7,8 of roller case 6 housings, voussoir 18 and wheel chock 19 all are installed in each pin rod, wherein two pin rods 17 respectively with cylindrical pin-and-hole 20 matched in clearance, another pin rod 17 can slide in oval slotted eye 21, can prevent that like this two parts 7,8 of roller case 6 housings from reversing relatively.
The fairlead 13 that the cooling tube rolling passes through has concentric pillow block 22, and is rigidly fixed in by pillow block on the housing parts 7 of roller case 6.Two parts 7,8 of roller case 6 housings keep concentric solution to be mutually, and the concentric pillow block of fairlead 13 is fitted on roller case 6 housing parts 8 in the borehole.
The locking device of each roller case connecting rod all has two pairs of support screws 24 and 25, two pairs of support screws to be installed on the support set on the cold pilger mill framework 1 26.A pair of screw mandrel is as stationary links 11, and another supports another part 7 of the roller tank shell that has roll 9 and gear to screw mandrel by roller tank shell part 8, separates until another part 7 of itself and housing.
The fixture 27 of all power base connecting rods 14 is all made the reversible supporting construction, and carries out hinged with the traction screw mandrel 28 that is fixed on the framework.
The hydraulic control unit that is used for mobile power base 4 is installed in the cold pilger mill framework, is made of two hydraulic cylinders 29, and the hydraulic cylinder pull bar is recovered to power base 4 when the roller case changes the outfit other.
Supporting that the roller case that changes the outfit is used and Handling device 30 are all made typical lever pattern, are provided with two hook 31 and suspension ring 32 of hanging usefulness above it, also are provided with dead lock 33, and dead lock 33 has screw mandrel 34 and locator 35.
In addition, the screw mandrel jack is arranged in the composition of cold pilger mill, when roller tank shell two parts are taken apart, the voussoir in the pin rod is unclamped successively, also have three clampers that change the outfit and reverse in the composition of cold pilger mill with anti-roll with it.
The frame of cold pilger mill changes the outfit according to following method:
The cold pilger mill that the present invention recommends and known comparing can reduce the workload that the roller case changes the outfit when producing the heavy caliber tube rolling.
Claims (3)
1. cold pilger mill, comprise the framework that has guider, work housing is installed on the guider, comprise portable power base in the work housing, tooth bar and portable roller case, be provided with three groups of rolls and gear in the roller tank shell, the lever drive unit has two pairs of connecting rods, connecting rod has connecting axle, and wherein first pair of connecting rod links to each other with portable power base, second pair of connecting rod links to each other with portable roller case, the locking device that also comprises power base and roller case connecting rod, it is characterized in that the housing of work housing central roll case is detachable, is made of two parts, a part is wherein directly placed roll and gear, and another part of roller tank shell links to each other with second pair of connecting rod, and fixes by three pin rods between two parts of roller tank shell, wherein two pin rods be inserted in the cylindrical hole and with its matched in clearance, another root pin rod can slide in the elliptical slot sky, and all is provided with voussoir and wheel chock in each root pin rod; In addition, fairlead is equipped with on the work housing of cold pilger mill, this fairlead is arranged along rolling axis, and be rigidly fixed on that part of roller tank shell that has roll and gear, fairlead has concentric pillow block, with one heart pillow block is fitted on that part of roller tank shell that is connected with connecting rod in the borehole, the hydraulic control unit that cold pilger mill also is equipped with the roller case that changes the outfit to use with supporting and Handling device and mobile power base, it is shaft-like that the locking device of all roller case connecting rods is all made supporting wire, and be installed on the support set on the cold pilger mill framework, and also be furnished with support screw on this support so that the pair roller case supports.
2. cold pilger mill as claimed in claim 1 is characterized in that the supporting of described roller case and Handling device are all made typical level type, is provided with two hook and suspension ring of hanging usefulness above, also is provided with dead lock, and dead lock has screw mandrel and locator.
3. cold pilger mill as claimed in claim 1 is characterized in that, the locking device of described power base connecting rod is all made the support shape, is articulated and connected with the traction screw mandrel that is fixed on the framework.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009113707/02A RU2380180C1 (en) | 2009-04-14 | 2009-04-14 | Mill for cold rolling of pipes |
| RU2009113707 | 2009-04-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733281A true CN101733281A (en) | 2010-06-16 |
| CN101733281B CN101733281B (en) | 2012-01-18 |
Family
ID=42122023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102658857A Expired - Fee Related CN101733281B (en) | 2009-04-14 | 2009-12-29 | Mill for cold rolling of pipes |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101733281B (en) |
| RU (1) | RU2380180C1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2487771C1 (en) * | 2012-01-17 | 2013-07-20 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Tube cold-rolling mill stand |
| RU2488454C1 (en) * | 2012-05-05 | 2013-07-27 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Pipe cold-rolling mill stand |
| RU2601724C1 (en) * | 2015-06-01 | 2016-11-10 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Cold pipe rolling mill stand |
| RU2632347C2 (en) * | 2016-03-21 | 2017-10-04 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Pipe cold rolling mill |
| RU2720330C1 (en) * | 2019-03-22 | 2020-04-28 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Working stand of cold rolling mill of pipes |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2197137Y (en) * | 1993-02-25 | 1995-05-17 | 冶金工业部包头钢铁设计研究院 | Slant rolling mill with three roller and cantilever dish-back with a double-prop |
| RU2155109C2 (en) * | 1998-05-19 | 2000-08-27 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Controlled thrust mechanism of screw rolling mill |
| RU2170152C2 (en) * | 1998-11-02 | 2001-07-10 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Three-roll stand of screw rolling mill |
| RU2207197C2 (en) * | 2000-07-04 | 2003-06-27 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Three-high rolling stand of reducing mill |
| RU2286220C1 (en) * | 2005-04-05 | 2006-10-27 | ОАО "Институт Цветметобработка" | Working stand for tube cold rolling mill |
| RU2286219C1 (en) * | 2005-04-05 | 2006-10-27 | ОАО "Институт Цветметобработка" | Working stand for tube cold rolling mill |
| RU2286221C1 (en) * | 2005-04-05 | 2006-10-27 | ОАО "Институт Цветметобработка" | Working line of tube cold rolling mill |
| CN200995226Y (en) * | 2006-11-16 | 2007-12-26 | 太原市通泽成套设备有限公司 | Roller adjuster of horizontal seamless steel pipe rolling machine |
-
2009
- 2009-04-14 RU RU2009113707/02A patent/RU2380180C1/en active
- 2009-12-29 CN CN2009102658857A patent/CN101733281B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101733281B (en) | 2012-01-18 |
| RU2380180C1 (en) | 2010-01-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20161229 |