CN105344714A - Quick roll changing device for rolling mill - Google Patents
Quick roll changing device for rolling mill Download PDFInfo
- Publication number
- CN105344714A CN105344714A CN201510958202.1A CN201510958202A CN105344714A CN 105344714 A CN105344714 A CN 105344714A CN 201510958202 A CN201510958202 A CN 201510958202A CN 105344714 A CN105344714 A CN 105344714A
- Authority
- CN
- China
- Prior art keywords
- roll
- milling train
- changing device
- slide
- end cover
- Prior art date
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/12—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by vertically displacing
Abstract
The invention discloses a quick roll changing device for a rolling mill. The quick roll changing device comprises a base, bracket trolleys and a roll changing trolley, wherein the two bracket trolleys can be close to each other or can be separated from each other by sliding on the base; the tops of the bracket trolleys are provided with a quick connecting device which is used for quickly connecting a supporting base of a movement of the rolling mill; the roll changing trolley can be arranged on the base in a sliding mode, and a sliding direction of the roll changing trolley is perpendicular to a sliding direction of the bracket trolleys; the roll changing trolley comprises a frame and two swing arms which can be rotatably arranged on the frame, wherein the two swing arms are arranged up and down; and the two swing arms are used for supporting a pair of shaft rolls after supporting bases at the two ends of a pair of milling rolls are separated from the pair of the shaft rolls by the two bracket trolleys. The quick roll changing device for the rolling mill is simple in structure, convenient to operate, and capable of helping an operator to quickly and efficiently replace the milling rolls, so that the working efficiency is improved; and each separated and dismounted part can be supported, so that the dismounted parts can be prevented from dropping to injure an operator.
Description
Technical field
The present invention relates to steel rolling equipment technical field, particularly a kind of milling train Quick roll-changing device.
Background technology
Milling train is a kind of equipment being made metal plastic deformation by two roll pressed, and therefore, roll can be subject to larger frictional force and pressure, is consumable accessory, in process of production, needs the quality often carrying out changing to ensure rolled piece.
In prior art, changing roll needs first to be separated with roll by the supporting seat of roll, is then taken off by roll and changes, therefore, need many people to coordinate to have come, operation is comparatively complicated, waste of manpower, efficiency is comparatively slow, and easily due to misoperation, causes roll to come off and to damage operating personnel.
Therefore, how a kind of milling train Quick roll-changing device is provided, can simplifies the operation, save manpower, improve roll and change speed, reduce potential safety hazard, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of milling train Quick roll-changing device, can simplify the operation to reach, save manpower, improve roll and change speed, reduce the object of potential safety hazard.
For achieving the above object, the invention provides following technical scheme:
A kind of milling train Quick roll-changing device, comprising:
Base;
Two trolleys, can slide with close to each other or separately on described base, and the top of described trolley is provided with the quick access device for being connected fast with the supporting seat of milling train movement;
Roll change buggy, to be slidably disposed on described base and its glide direction is vertical with the glide direction of described trolley, comprise vehicle frame and be arranged at two swing arms on described vehicle frame rotationally, described two swing arms are arranged up and down, and described two swing arms are used for, at described two trolleys, the supporting seat at a pair roller two ends of milling train and described a pair beaming roller are separated a pair beaming roller described in rear support.
Preferably, described base is T-shaped, comprise the first slide and two the second slides, described two the second slide specular are arranged, described two trolleys are separately positioned on described two the second slides, described roll change buggy is arranged on described first slide, and described first slide is vertical with described two the second slides.
Preferably, described trolley slides under the driving of drive unit on described second slide.
Preferably, described drive unit is piston cylinder, and the cylinder body of described piston cylinder is arranged on described second slide, and piston rod is connected with described trolley.
Preferably, the bottom of frame of described roll change buggy is provided with T-shaped walking mechanism, described T-shaped walking mechanism comprises mounting bracket, support wheel and two road wheels, described mounting bracket comprises connected horizontal support and longitudinal carrier, described two road wheels are arranged on the two ends of described horizontal support respectively, described support wheel is arranged on the end of described longitudinal carrier away from described horizontal support, and described support wheel exceedes the front end of described swing arm in vertical direction.
Preferably, described first slide is provided with for the first track of described road wheel walking and the second track for described support wheel walking, described second track extends between described two the second slides.
Preferably, described roll change buggy is also provided with the micromatic setting for finely tuning the angle of described swing arm, described micromatic setting comprises:
Slide block beam, can slide up and down along the chute on described vehicle frame, is provided with the push rod for conflicting with the rear end of described swing arm;
Actuator, rises for driving chute described in described slide block beam sample or declines.
Preferably, described slide block beam is provided with fixing hole, described push rod is arranged in described fixing hole by fixation kit, First terrace is upwards provided with in described fixing hole, described fixation kit comprises bottom end cover, upper end cover and elastic component, described bottom end cover is slidably disposed in described fixing hole, be provided with the second step face coordinated with described First terrace, described bottom end cover offers screwed hole vertically, described upper end cover is arranged in described fixing hole, it offers through hole vertically, described elastic component is arranged between described upper end cover and described bottom end cover, described push rod one end is provided with screw thread and described threaded one end of lever tool coordinates with the screwed hole on described bottom end cover through the through hole on described upper end cover.
Preferably, described actuator comprises:
Eccentric shaft, comprises eccentric shaft part and propeller section, and described propeller section is arranged on described vehicle frame rotationally, and the end of described eccentric shaft part and described slide block beam is rotatably connected;
Handle, is connected with described propeller section.
Preferably, the end of described slide block beam is provided with waist-shaped hole, and described eccentric shaft part coordinates with described waist-shaped hole.
As can be seen from technique scheme, the invention provides a kind of milling train Quick roll-changing device, comprise base, trolley and roll change buggy, wherein, trolley is provided with two, can slide with close to each other or separately on base, the top of trolley is provided with the quick access device for being connected fast with the supporting seat of milling train movement; Roll change buggy is slidably disposed on base and its glide direction is vertical with the glide direction of trolley, comprise vehicle frame and be arranged at two swing arms on vehicle frame rotationally, two swing arms are arranged up and down, and two swing arms are used for, at two trolleys, the supporting seat at a pair roller two ends of milling train and a pair beaming roller are separated rear support a pair beaming roller;
When changing roll, after trolley is connected with supporting seat by quick access device, two trolleys are separated from each other, and supporting seat is separated with roll, then lift roll by the swing arm of roll change buggy and are taken away by roll, thus completing the dismounting of roll; Subsequently, take new roll to installation site by roll change buggy, trolley drives supporting seat to get back to initial position and roll is installed, and can complete the replacing of roll, as can be seen here, above-mentioned milling train Quick roll-changing device, structure is simple, convenient operation, operating personnel can be helped to change roll quickly and efficiently, improve operating efficiency, and can each several part being separated dismounting all be supported, the element falling dismantled can be avoided to damage operating personnel.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The perspective view of the milling train Quick roll-changing device that Fig. 1 provides for the embodiment of the present invention;
The perspective view of trolley in the milling train Quick roll-changing device that Fig. 2 provides for the embodiment of the present invention;
The perspective view of roll change buggy in the milling train Quick roll-changing device that Fig. 3 provides for the embodiment of the present invention;
Sectional view under the milling train Quick roll-changing device duty that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the A-A view in Fig. 4;
The structural representation of slide block beam in the milling train Quick roll-changing device that Fig. 6 provides for the embodiment of the present invention.
Detailed description of the invention
The invention provides a kind of milling train Quick roll-changing device, can simplify the operation to reach, save manpower, improve roll and change speed, reduce the object of potential safety hazard.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 6, the perspective view of the milling train Quick roll-changing device that Fig. 1 provides for the embodiment of the present invention; The perspective view of trolley in the milling train Quick roll-changing device that Fig. 2 provides for the embodiment of the present invention; The perspective view of roll change buggy in the milling train Quick roll-changing device that Fig. 3 provides for the embodiment of the present invention; Sectional view under the milling train Quick roll-changing device duty that Fig. 4 provides for the embodiment of the present invention; Fig. 5 is the A-A view in Fig. 4; The structural representation of slide block beam in the milling train Quick roll-changing device that Fig. 6 provides for the embodiment of the present invention.
Embodiments provide a kind of milling train Quick roll-changing device, comprise base 1, trolley 4 and roll change buggy 5.
Wherein, base 1 provides track to slide for trolley 4 and roll change buggy 5 thereon; Trolley 4 is provided with two, can slide with close to each other or separately on base 1, and the top of trolley 4 is provided with the quick access device 3 for being connected fast with the supporting seat of milling train movement 7; Roll change buggy 5 is slidably disposed on base 1 and its glide direction is vertical with the glide direction of trolley 4, comprise vehicle frame 52 and be arranged at two swing arms 51 on vehicle frame 52 rotationally, two swing arms about 51 are arranged, two swing arms 51 are for separating rear support a pair beaming roller at two trolleys 4 by the supporting seat at a pair roller 6 two ends of milling train and a pair beaming roller.
Compared with prior art, the milling train Quick roll-changing device that the embodiment of the present invention provides, when changing roll 6, after trolley 4 is connected with supporting seat by quick access device 3, two trolleys 4 are separated from each other, supporting seat is separated with roll 6, then lifts roll 6 by the swing arm 51 of roll change buggy 5 and roll 6 is taken away, thus completing the dismounting of roll 6; Subsequently, take new roll 6 to installation site by roll change buggy 5, trolley 4 drives supporting seat to get back to initial position and roll 6 is installed, and can complete the replacing of roll 6, as can be seen here, above-mentioned milling train Quick roll-changing device, structure is simple, convenient operation, operating personnel can be helped to change roll 6 quickly and efficiently, improve operating efficiency, and can each several part being separated dismounting all be supported, the element falling dismantled can be avoided to damage operating personnel.
Base 1 can be set to various structures, in embodiments of the present invention, base 1 is T-shaped, be made up of three parts, comprise the first slide 11 and two the second slides 12, two the second slide 12 specular are arranged, two trolleys 4 are separately positioned on two the second slides 12, roll change buggy 5 is arranged on the first slide 11, first slide 11 is vertical with two the second slides 12, by base 1 is set to three parts, realizes modularized design, base 1 can be divided into three parts, be convenient to the mobile transport of milling train Quick roll-changing device.
Further, trolley 4 can be driven by multiple drive 2 slip realized on the second slide 12, such as screwed hole is set on trolley 4, be connected the reciprocal operation that just can realize trolley 4 with servomotor output after leading screw and screwed hole coordinate, other drive unit 2 certainly can also be adopted to realize, such as, in embodiments of the present invention, drive unit 2 is piston cylinder, and the cylinder body of piston cylinder is arranged on the second slide 12, and piston rod is connected with trolley 4.
Roll change buggy 5 needs in the process of roll change, its front end needs to carry roll 6, therefore larger pressure can be born, easily make roll change buggy 5 disequilibrium, it is caused to topple forward, in order to solve the problem, balancing weight can be added at the rear portion of roll change buggy 5, roll change buggy 5 is made to keep balance with this, but, this can increase the weight of roll change buggy 5, be not easy to the movement of roll change buggy 5, therefore, in order to optimize technique scheme further, in embodiments of the present invention, T-shaped walking mechanism is provided with bottom the vehicle frame 52 of roll change buggy 5, T-shaped walking mechanism comprises mounting bracket 58, support wheel 59 and two road wheels 57, mounting bracket 58 comprises connected horizontal support and longitudinal carrier, two road wheels 57 are arranged on the two ends of horizontal support respectively, support wheel 59 is arranged on the end of longitudinal carrier away from horizontal support, support wheel 59 exceedes the front end of swing arm 51 in vertical direction, like this, in the end that longitudinal carrier extends forward, support wheel 59 is installed, roll 6 can be carried at roll change buggy 5 to make to support roll change buggy 5, it is made to keep balance, greatly can not increase the weight of roll change buggy 5 simultaneously, do not affect the movement of roll change buggy 5.
Further, in order to avoid two movements of the second slide 12 to the roll change buggy 5 with T-shaped walking mechanism cause interference, in embodiments of the present invention, first slide 11 is provided with first track of walking for road wheel 57 and second track of walking for support wheel 59, second track extends between two the second slides 12, like this, T-shaped walking mechanism has the end with support wheel 59 of protracting and can enter between two the second slides 12 along the second track, thus swing arm 51 can be arrived below roll 6 smoothly.
Certain deviation may be there is in roll 6 height on each milling train, roll change buggy 5 is caused to carry out supporting or installation site accurately cannot being brought it to by roll 6 accurately, in order to address this problem, further optimization technique scheme, in embodiments of the present invention, roll change buggy 5 is also provided with the micromatic setting for finely tuning the angle of swing arm 51, micromatic setting comprises slide block beam 53 and actuator, wherein, slide block beam 53 can slide up and down along the chute on vehicle frame 52, is provided with the push rod 54 for conflicting with the rear end of swing arm 51; Actuator rises or decline along chute for driving slide block beam 53.Like this, drive slide block beam 53 to slide up and down by actuator, swing arm 51 can be made to turn an angle, thus make swing arm 51 accurately find the position of roll 6 accurately.
Further, in embodiments of the present invention, slide block beam 53 is provided with fixing hole, push rod 54 is arranged in fixing hole by fixation kit 8, First terrace is upwards provided with in fixing hole, fixation kit 8 comprises bottom end cover 83, upper end cover 81 and elastic component 82, bottom end cover 83 is slidably disposed in fixing hole, be provided with the second step face coordinated with First terrace, bottom end cover 83 offers screwed hole vertically, upper end cover 81 is arranged in fixing hole, it offers through hole vertically, elastic component 82 is arranged between upper end cover 81 and bottom end cover 83, push rod 54 one end is provided with screw thread and the threaded one end of lever tool coordinates with the screwed hole on bottom end cover 83 through the through hole on upper end cover 81.By said structure, can be formed and cushion between push rod 54 and swing arm 51, when its carrying roll 6, push rod 54 lower end is contracted in slide block beam 53, can increase the contact surface between swing arm 51 and slide block beam 53, protection roll change buggy 5.
Actuator can adopt various structures, and in embodiments of the present invention, actuator comprises eccentric shaft 55 and handle 56, wherein, eccentric shaft 55 comprises eccentric shaft 55 sections and propeller section, and propeller section is arranged on vehicle frame 52 rotationally, and eccentric shaft 55 sections is rotatably connected with the end of slide block beam 53; Handle 56 and propeller section are connected.Like this, by turning handle 56, slide block beam 53 is driven to slide up and down by eccentric shaft 55 sections.
Further, because eccentric shaft 55 sections is not simple moving along the vertical direction, but move in a circle, and slide block beam 53 is merely able to move along the vertical direction in chute, if slide block beam 53 is by coordinating with eccentric shaft 55 sections with eccentric shaft 55 sections of circular holes mated, eccentric shaft 55 will be caused to rotate, therefore, in embodiments of the present invention, the end of slide block beam 53 is provided with waist-shaped hole 53a, eccentric shaft 55 sections coordinates with waist-shaped hole 53a, like this, can ensure that eccentric shaft 55 drives slide block beam 53 to slide up and down.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a milling train Quick roll-changing device, is characterized in that, comprising:
Base (1);
Two trolleys (4), can slide with close to each other or separately described base (1) is upper, the top of described trolley (4) is provided with the quick access device (3) for being connected fast with the supporting seat of milling train movement (7);
Roll change buggy (5), be slidably disposed on that described base (1) is upper and its glide direction is vertical with the glide direction of described trolley (4), comprise vehicle frame (52) and be arranged at two swing arms (51) on described vehicle frame (52) rotationally, described two swing arms (51) are arranged up and down, and described two swing arms (51) are for separating rear support described in a pair beaming roller by the supporting seat at a pair roller (6) two ends of milling train with described a pair beaming roller described two trolleys (4).
2. milling train Quick roll-changing device according to claim 1, it is characterized in that, described base (1) is T-shaped, comprise the first slide (11) and two the second slides (12), described two the second slide (12) specular are arranged, described two trolleys (4) are separately positioned on described two the second slides (12), described roll change buggy (5) is arranged on described first slide (11), and described first slide (11) is vertical with described two the second slides (12).
3. milling train Quick roll-changing device according to claim 2, is characterized in that, described trolley (4) above slides described second slide (12) under the driving of drive unit (2).
4. milling train Quick roll-changing device according to claim 3, it is characterized in that, described drive unit (2) is piston cylinder, and the cylinder body of described piston cylinder is arranged on described second slide (12), and piston rod is connected with described trolley (4).
5. milling train Quick roll-changing device according to claim 2, it is characterized in that, vehicle frame (52) bottom of described roll change buggy (5) is provided with T-shaped walking mechanism, described T-shaped walking mechanism comprises mounting bracket (58), support wheel (59) and two road wheels (57), described mounting bracket (58) comprises connected horizontal support and longitudinal carrier, described two road wheels (57) are arranged on the two ends of described horizontal support respectively, described support wheel (59) is arranged on the end of described longitudinal carrier away from described horizontal support, described support wheel (59) exceedes the front end of described swing arm (51) in vertical direction.
6. milling train Quick roll-changing device according to claim 3, it is characterized in that, described first slide (11) is provided with first track of walking for described road wheel (57) and second track of walking for described support wheel (59), described second track extends between described two the second slides (12).
7. milling train Quick roll-changing device according to claim 1, is characterized in that, described roll change buggy (5) is also provided with the micromatic setting for finely tuning the angle of described swing arm (51), described micromatic setting comprises:
Slide block beam (53), can slide up and down along the chute on described vehicle frame (52), is provided with the push rod (54) for conflicting with the rear end of described swing arm (51);
Actuator, rises for driving chute described in described slide block beam (53) sample or declines.
8. milling train Quick roll-changing device according to claim 7, it is characterized in that, described slide block beam (53) is provided with fixing hole, described push rod (54) is arranged in described fixing hole by fixation kit (8), First terrace is upwards provided with in described fixing hole, described fixation kit (8) comprises bottom end cover (83), upper end cover (81) and elastic component (82), described bottom end cover (83) is slidably disposed in described fixing hole, be provided with the second step face coordinated with described First terrace, (83) offer screwed hole to described bottom end cover vertically, described upper end cover (81) is arranged in described fixing hole, it offers through hole vertically, described elastic component (82) is arranged between described upper end cover (81) and described bottom end cover (83), described push rod (54) one end is provided with screw thread and described threaded one end of lever tool coordinates with the screwed hole on described bottom end cover (83) through the through hole on described upper end cover (81).
9. milling train Quick roll-changing device according to claim 7, is characterized in that, described actuator comprises:
Eccentric shaft (55), comprise eccentric shaft (55) section and propeller section, described propeller section is arranged on described vehicle frame (52) rotationally, and the end of described eccentric shaft (55) section and described slide block beam (53) is rotatably connected;
Handle (56), is connected with described propeller section.
10. milling train Quick roll-changing device according to claim 9, it is characterized in that, the end of described slide block beam (53) is provided with waist-shaped hole (53a), and described eccentric shaft (55) section coordinates with described waist-shaped hole (53a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958202.1A CN105344714B (en) | 2015-12-19 | 2015-12-19 | A kind of milling train Quick roll-changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958202.1A CN105344714B (en) | 2015-12-19 | 2015-12-19 | A kind of milling train Quick roll-changing device |
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| Publication Number | Publication Date |
|---|---|
| CN105344714A true CN105344714A (en) | 2016-02-24 |
| CN105344714B CN105344714B (en) | 2017-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510958202.1A Active CN105344714B (en) | 2015-12-19 | 2015-12-19 | A kind of milling train Quick roll-changing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391719A (en) * | 2016-11-23 | 2017-02-15 | 大连富地重工机械制造有限公司 | Rotatable separation rolling mill and separation method thereof |
| CN109848220A (en) * | 2018-12-27 | 2019-06-07 | 二重（德阳）重型装备有限公司 | The roll replacing options of four-high mill |
| CN110523779A (en) * | 2018-07-18 | 2019-12-03 | 广东韶钢松山股份有限公司 | A kind of replacement device and method for reversible mill breast roll |
| CN112692785A (en) * | 2020-11-24 | 2021-04-23 | 上海五钢设备工程有限公司 | Device and method for replacing take-over of KOCKS rolling mill |
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| CN101733284A (en) * | 2008-11-04 | 2010-06-16 | 上海重型机器厂有限公司 | Working roll replacing device and working roll replacing method for heavy and medium plate mill |
| CN104096713A (en) * | 2014-07-09 | 2014-10-15 | 常州宝菱重工机械有限公司 | Online roller changing device |
| CN205518989U (en) * | 2015-12-19 | 2016-08-31 | 重庆麦拓科技有限公司 | Quick roll -changing device of rolling mill |
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| JPH10192919A (en) * | 1997-01-10 | 1998-07-28 | Hitachi Zosen Corp | Device for disassembling and assembling work roll |
| EP1136143A2 (en) * | 2000-03-16 | 2001-09-26 | ACHENBACH BUSCHHÜTTEN GmbH | Roll changing device for rolling stands, in particular six-high rolling stands |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106391719A (en) * | 2016-11-23 | 2017-02-15 | 大连富地重工机械制造有限公司 | Rotatable separation rolling mill and separation method thereof |
| CN110523779A (en) * | 2018-07-18 | 2019-12-03 | 广东韶钢松山股份有限公司 | A kind of replacement device and method for reversible mill breast roll |
| CN109848220A (en) * | 2018-12-27 | 2019-06-07 | 二重（德阳）重型装备有限公司 | The roll replacing options of four-high mill |
| CN112692785A (en) * | 2020-11-24 | 2021-04-23 | 上海五钢设备工程有限公司 | Device and method for replacing take-over of KOCKS rolling mill |
| CN112692785B (en) * | 2020-11-24 | 2023-03-07 | 上海五钢设备工程有限公司 | Device and method for replacing take-over of KOCKS rolling mill |
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| Publication number | Publication date |
|---|---|
| CN105344714B (en) | 2017-09-01 |
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Effective date of registration: 20200119 Address after: 243000 building 3, No. 669, Chaoshan West Road, Ma'anshan economic and Technological Development Zone (Demonstration Park), Ma'anshan City, Anhui Province Patentee after: Anhui Sinosteel Nuotai Engineering Technology Co.,Ltd. Address before: 400030 C 4-1, University City Education and technology promotion center, 1 University Town South Road, Shapingba District, Chongqing Patentee before: CHONGQING MAITUO TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A Quick Roll Changing Device for Rolling Mill Effective date of registration: 20230323 Granted publication date: 20170901 Pledgee: Ma'anshan branch of Industrial Bank Co.,Ltd. Pledgor: Anhui Sinosteel Nuotai Engineering Technology Co.,Ltd. Registration number: Y2023980035836 |
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