CN114273439A - Multistation roll draw-out device - Google Patents
Multistation roll draw-out device Download PDFInfo
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- CN114273439A CN114273439A CN202111598602.8A CN202111598602A CN114273439A CN 114273439 A CN114273439 A CN 114273439A CN 202111598602 A CN202111598602 A CN 202111598602A CN 114273439 A CN114273439 A CN 114273439A
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- swing arm
- roller
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- roll
- hook head
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- 230000007246 mechanism Effects 0.000 claims abstract description 88
- 238000000605 extraction Methods 0.000 claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims description 43
- 230000001360 synchronised effect Effects 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention discloses a multi-station roller extraction device, which comprises: the transverse moving vehicle is driven by a motor to travel on the transverse moving track; the roller extracting device is movably arranged on the cross sliding vehicle and is driven by a driving mechanism of the roller extracting device movably arranged on the cross sliding vehicle to move on the cross sliding vehicle; the moving direction of the roller extracting device is vertical to the moving direction of the transverse moving vehicle; when the roller extracting device works, the roller is hooked and is extracted into the roller frame from the roller changing vehicle, and then the roller is released. The roller is automatically drawn into the roller frame from the roller changing vehicle, so that the working efficiency can be improved, and automatic control is realized.
Description
Technical Field
The invention relates to the technical field of roller replacement equipment among cold rolling intelligent grinding rollers, in particular to a multi-station roller extraction device for realizing roller replacement.
Background
In the intelligent grinding roller room of a cold rolling mill, the surface of a roller needs to be repaired periodically, and a roller extraction device needs to extract the roller into a roller frame from a roller changing vehicle. At present, a roller is directly sucked into a roller frame from a roller changing vehicle by a crane, so that the working efficiency is low, the roller changing speed is low, and the equipment is long in downtime.
Disclosure of Invention
In order to adapt to the work rhythm of roll changing among intelligent grinding rolls, the invention provides the multi-station roll extracting device capable of realizing multi-station roll changing, which automatically finishes the process of extracting a multi-frame roll into a roll frame from a roll changing vehicle, thereby improving the work efficiency and realizing automatic control.
The invention achieves the aim through the following technical scheme:
multistation roll draw-out device includes:
the transverse moving vehicle is driven by a motor to travel on the transverse moving track;
the roll extracting device is movably arranged on the cross sliding vehicle and driven by a roll extracting device driving mechanism movably arranged on the cross sliding vehicle to move on the cross sliding vehicle; the moving direction of the roller extracting device is vertical to the moving direction of the transverse moving vehicle; when the roller extracting device works, the roller is hooked and is extracted into the roller frame from the roller changing vehicle, and then the roller is released.
In a preferred embodiment of the present invention, the roll extracting apparatus comprises:
the roller hook head mounting block is movably mounted on the transverse moving vehicle and is connected with a driving mechanism of a roller extraction device;
at least one electric cylinder arranged on the roller hook head mounting block, wherein the electric cylinder is provided with a push rod;
the roller hook mounting block is provided with a roller hook mounting block, the roller hook mounting block is provided with a roller, and the roller hook mounting block is provided with a roller; the tail end of a push rod of the electric cylinder is hinged with the driving hook head swing arm, and the hinged position of the push rod is located between the fulcrum of the driving hook head swing arm and the second end of the driving hook head swing arm; the second end of the driving hook head swing arm is connected with the roller hook head mounting block through a driving hook head swing arm reset spring;
at least one driven gib head swing arm, driven gib head swing arm has first end and second end the first end of driven gib head swing arm is provided with driven gib head, the second end hinge of driven gib head swing arm is established on the roll gib head installation piece and through a synchronous link motion mechanism with initiative gib head swing arm synchronous connection, wherein, synchronous link motion mechanism's one end with the second end fixed connection of driven gib head swing arm, synchronous link motion mechanism with initiative gib head swing arm fixed connection department is located the fulcrum position of initiative gib head swing arm.
In a preferred embodiment of the invention, the two driving hook swing arms are divided into a middle roller driving hook swing arm and a working roller driving hook swing arm, the two driven hook swing arms are also divided into a middle roller driving hook swing arm and a working roller driving hook swing arm, and the middle roller driving hook swing arm and the middle roller driven hook swing arms are distributed on the roller hook mounting block in an up-and-down symmetrical manner; the working roll driving hook head swing arm and the working roll driven hook head swing arm are also distributed on the roll hook head mounting block in an up-down symmetrical mode; the two electric cylinders are divided into a middle roller electric cylinder and a working roller electric cylinder, wherein the tail end of a push rod of the middle roller electric cylinder is hinged with the middle roller driving hook head swing arm, and the hinged position of the push rod is positioned between the fulcrum of the middle roller driving hook head swing arm and the second end of the middle roller driving hook head swing arm; the tail end of a push rod of the working roller electric cylinder is hinged with the working roller driving hook head swing arm, and the hinged position of the push rod is positioned between the fulcrum of the working roller driving hook head swing arm and the second end of the working roller driving hook head swing arm; the synchronous connecting rod motion mechanisms are also provided with two sets and are divided into a middle roller synchronous connecting rod motion mechanism and a working roller synchronous connecting rod motion mechanism, one end of the middle roller synchronous connecting rod motion mechanism is fixedly connected with the second end of the middle roller driven hook head swing arm, the other end of the middle roller synchronous connecting rod motion mechanism is fixedly connected with the middle roller driving hook head swing arm, and the fixed connection position of the other end of the middle roller synchronous connecting rod motion mechanism and the middle roller driving hook head swing arm is positioned at the fulcrum position of the middle roller driving hook head swing arm; one end of the working roll synchronous connecting rod motion mechanism pair is fixedly connected with the second end of the working roll driven hook head swing arm, the other end of the working roll synchronous connecting rod motion mechanism is fixedly connected with the official and national roll driving hook head swing arm, and the fixed connection position of the other end of the working roll synchronous connecting rod motion mechanism and the working roll driving hook head swing arm is positioned at the fulcrum position of the working roll driving hook head swing arm; the two driving hook head swing arm reset springs are divided into a middle roller driving hook head swing arm reset spring and a working roller driving hook head swing arm reset spring, wherein the second end of the middle roller driving hook head swing arm is connected with the roller hook head mounting block through the middle roller driving hook head swing arm reset spring, and the second end of the working roller driving hook head swing arm is connected with the roller hook head mounting block through the working roller driving hook head swing arm reset spring.
In a preferred embodiment of the invention, the intermediate roll driving hook swing arm and the intermediate roll driven hook swing arm are located outside the work roll driving hook swing arm and the work roll driven hook swing arm, respectively.
In a preferred embodiment of the invention, a driving middle roller hook head guide device and a driven middle roller hook head guide device are symmetrically arranged on the roller hook head mounting block, and a driving hook head at the first end of the middle roller driving hook head swing arm is inserted into the driving middle roller hook head guide device and is guided by the driving middle roller hook head guide device to move vertically up and down; the driven hook head at the first end of the middle roller driven hook head swing arm is inserted into the driven middle roller hook head guide device and guided by the driven middle roller hook head guide device to vertically move up and down, so that the opening and closing of the driving hook head at the first end of the middle roller driving hook head swing arm and the driven hook head at the first end of the middle roller driven hook head swing arm are vertically moved up and down; the opening and closing of the driving hook head at the first end of the driving hook head swing arm of the working roll and the driven hook head at the first end of the driven hook head swing arm of the working roll are swinging motion.
In a preferred embodiment of the invention, the roller extraction device driving mechanism comprises a driving mechanism mounting bracket, a motor and a speed reducing mechanism, the driving mechanism mounting bracket is movably mounted on the cross-sliding vehicle through a travelling wheel, a power output end of the motor is connected with a power input end of the speed reducing mechanism, a chain wheel is arranged at a power output end of the speed reducing mechanism, the motor drives the speed reducing mechanism to work, the speed reducing mechanism drives the chain wheel to rotate, the chain wheel is meshed with a chain erected on the cross-sliding vehicle, and the whole roller extraction device driving mechanism is driven to reciprocate on the cross-sliding vehicle through the meshing of the chain wheel and the chain; and the roller hook head mounting block is connected with the driving mechanism mounting bracket.
Due to the adoption of the technical scheme, the roller drawing device is driven by the driving mechanism to move on the transverse moving vehicle; the moving direction of the roller extracting device is vertical to the moving direction of the transverse moving vehicle; when a middle roller electric cylinder and a working roller electric cylinder in the roller extraction device work, the middle roller is hooked and released through the opening and closing of a driving hook head at the first end of a middle roller driving hook head swing arm and a driven hook head at the first end of a middle roller driven hook head swing arm; the working roll is hooked and released by opening and closing the driving hook head at the first end of the driving hook head swing arm of the working roll and the driven hook head of the driven hook head swing arm of the working roll, so that the roller is automatically pulled into the roller frame from the roller changing vehicle, the working efficiency can be improved, and automatic control is realized.
Drawings
Fig. 1 is a schematic structural diagram of a multi-station roll extracting device of the invention.
Fig. 2 is a schematic view of the working state of the multi-station roll extracting device of the invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
Referring to fig. 1, there is shown a multi-station roll extraction apparatus comprising: a traverse car 100, a roll extracting device 200, and a roll extracting device driving mechanism 300.
The traverse carriage 130 of the traverse 100 is driven to travel on the traverse rail 120 by a traverse driving mechanism 110 (not shown) including a motor.
The roll extracting device driving mechanism 300 comprises a driving mechanism mounting bracket 310, a motor 320 and a speed reducing mechanism 330, wherein the driving mechanism mounting bracket 310 is movably mounted on the traverse frame 130 through a travelling wheel 311, a power output end of the motor 220 is connected with a power input end of the speed reducing mechanism 330, a chain wheel 340 is arranged at a power output end of the speed reducing mechanism 330, the motor 320 drives the speed reducing mechanism 330 to work, the speed reducing mechanism 330 drives the chain wheel 340 to rotate, the chain wheel 340 is meshed with a chain 350 erected on the traverse frame 130, and the whole roll extracting device driving mechanism 300 is driven to reciprocate on the traverse frame 130 through meshing of the chain wheel 340 and the chain 350. The driving mechanism mounting bracket 310 of the roll extracting apparatus driving mechanism 300 moves in a direction perpendicular to the traverse car 100.
The roll extracting device 200 includes a roll hook mounting block 210, a middle roll driving hook swing arm 220, a middle roll driven hook swing arm 220a, a work roll driving hook swing arm 230, a work roll driven hook swing arm 230a, a middle roll electric cylinder 240, a work roll electric cylinder 240a, a middle roll driving hook swing arm return spring 250, a work roll driving hook swing arm return spring 260, a middle roll synchronous link motion mechanism 270, and a work roll synchronous link motion mechanism 280.
The roll hook mounting block 210 is fixedly connected to the driving mechanism mounting bracket 310 of the roll extracting device driving mechanism 300, so that the movement of the driving mechanism mounting bracket 310 of the roll extracting device driving mechanism 300 on the traverse carriage 130 can drive the roll hook mounting block 210 to move on the traverse carriage 130, further drive the whole roll extracting device 200 to move on the traverse carriage 130 and ensure that the moving direction of the whole roll extracting device 200 is perpendicular to the moving direction of the traverse carriage 100.
The fulcrums 221 and 231 of the intermediate roller driving hook head swing arm 220 and the working roller driving hook head swing arm 230 are hinged on the roller hook head mounting block 210, the intermediate roller driving hook head swing arm 220 is provided with a first end 222 and a second end 223 which are positioned at two ends of the fulcrum 221, the first end 222 of the intermediate roller driving hook head swing arm 220 is provided with a driving hook head 224 which extends upwards, and the second end 222 of the intermediate roller driving hook head swing arm 220 is connected with the roller hook head mounting block 210 through an intermediate roller driving hook head swing arm reset spring 250.
The work roll active hook swing arm 230 has a first end 232 and a second end 233 at either end of a fulcrum 231. The first end 232 of the work roll driving hook swing arm 230 is provided with a driving hook 234 extending upward, and the second end 232 of the work roll driving hook swing arm 230 is connected to the roll hook mounting block 210 through a work roll driving hook swing arm return spring 260.
The middle roller driven hook head swing arm 220a has a first end 221a and a second end 222a, a driven hook head 223a extending downward is provided at the second end 222a of the middle roller driven hook head swing arm 220a, and the first end 221a of the middle roller driven hook head swing arm 220a is hinged on the roll hook head mounting block 210.
The work roll driven hook head swing arm 230a has a first end 231a and a second end 232a, a driven hook head 233a extending downward is provided at the second end 232a of the work roll driven hook head swing arm 230a, and the first end 231a of the work roll driven hook head swing arm 230a is hinged to the roll hook head mounting block 210.
The middle roller driving hook head swing arm 220 and the middle roller driven hook head swing arm 220a are distributed on the roller hook head mounting block 210 in an up-down symmetrical mode; the work roll driving hook swing arm 230 and the work roll driven hook swing arm 230a are also distributed on the roll hook mounting block 210 in an up-down symmetrical manner, wherein the middle roll driving hook swing arm 220 and the middle roll driven hook swing arm 220a are respectively located at the outer sides of the work roll driving hook swing arm 230 and the work roll driven hook swing arm 230 a.
The middle roller electric cylinder 240 and the working roller electric cylinder 240a are arranged on the roller hook head mounting block 210 in a mode that central axes are parallel to each other, and the central axes of the middle roller electric cylinder 240 and the working roller electric cylinder 240a are in a plumb direction, so that the vertical movement of the push rods 241 and 241a in the middle roller electric cylinder 240 and the working roller electric cylinder 240a can be ensured.
The end of the push rod 241 of the middle roller electric cylinder 240 is hinged to the middle roller driving hook swing arm 220, and the hinged position is located between the fulcrum 221 of the middle roller driving hook swing arm 220 and the second end 223 of the middle roller driving hook swing arm 220. Thus, when the push rod 241 of the middle roller electric cylinder 240 moves downward to apply an acting force to the middle roller driving hook swing arm 220, the second end 223 of the middle roller driving hook swing arm 220 moves downward after overcoming the resistance of the middle roller driving hook swing arm return spring 250, the middle roller driving hook swing arm return spring 250 is compressed, and the first end 222 of the middle roller driving hook swing arm 220 moves upward to drive the driving hook 224 of the middle roller driving hook swing arm 220 to move upward synchronously. When the push rod 241 of the middle roller electric cylinder 240 moves upward without applying an acting force to the middle roller driving hook swing arm 220, the second end 223 of the middle roller driving hook swing arm 220 moves upward by a restoring force of the middle roller driving hook swing arm restoring spring 250, and the first end 222 of the middle roller driving hook swing arm 220 moves downward to drive the driving hook 224 of the middle roller driving hook swing arm 220 to synchronously move downward.
The end of the push rod 241a of the work roll electric cylinder 240a is hinged to the work roll driving hook swing arm 230, and the hinged position 242a is located between the fulcrum 231 of the work roll driving hook swing arm 230 and the second end 233 of the work roll driving hook swing arm 230, so that when the push rod 241a of the work roll electric cylinder 240a moves downward to apply an acting force to the work roll driving hook swing arm 230, the second end 233 of the work roll driving hook swing arm 230 swings downward after overcoming the resistance of the work roll driving hook swing arm return spring 260, the work roll driving hook swing arm return spring 260 is compressed, the first end 232 of the work roll driving hook swing arm 230 swings upward, and the driving hook 234 of the work roll driving hook swing arm 230 synchronously moves upward. When the push rod 241a of the work roll electric cylinder 240a moves upward without applying a force to the work roll driving hook swing arm 230, the second end 233 of the work roll driving hook swing arm 230 moves upward by the restoring force of the work roll driving hook swing arm restoring spring 260, and the first end 232 of the work roll driving hook swing arm 230 moves upward to drive the driving hook 234 of the work roll driving hook swing arm 230 to move upward synchronously.
The intermediate roller synchronous connecting rod motion mechanism 270 and the working roller synchronous connecting rod motion mechanism 280 are both multi-connecting-rod mechanisms, one end of the intermediate roller synchronous connecting rod motion mechanism 270 is fixedly connected with the second end 223a of the intermediate roller driven hook head swing arm 220a, the other end of the intermediate roller synchronous connecting rod motion mechanism 270 is fixedly connected with the intermediate roller driving hook head swing arm 220, and the fixed connection position of the other end of the intermediate roller synchronous connecting rod motion mechanism 270 and the intermediate roller driving hook head swing arm 220 is located at the fulcrum 221 position of the intermediate roller driving hook head swing arm 220. When the middle roller driving gib head swing arm 220 moves, the middle roller driven gib head swing arm 220a is driven to move synchronously through the middle roller synchronous connecting rod motion mechanism 270.
One end of the work roll synchronous link motion mechanism 280 is fixedly connected with the second end 233a of the work roll driven hook swing arm 230a, the other end of the work roll synchronous link motion mechanism 280 is fixedly connected with the work roll driving hook swing arm 230, and the fixed connection position of the other end of the work roll synchronous link motion mechanism 280 and the work roll driving hook swing arm 230 is located at the fulcrum 231 of the work roll driving hook swing arm 230. When the work roll driving gib head swing arm 230 moves, the work roll driven gib head swing arm 230a is driven to move synchronously by the work roll synchronous connecting rod motion mechanism 280.
A driving middle roll hook guide 290 and a driven middle roll hook guide 290a are symmetrically arranged on the roll hook mounting block 210, and a driving hook 224 at the first end 222 of the middle roll driving hook swing arm 220 is inserted into the driving middle roll hook guide 290 and is guided by the driving middle roll hook guide 290 to vertically move up and down; the driven hook head 224a of the first end 221a of the intermediate roller driven hook head swing arm 220a is inserted into the driven intermediate roller hook head guide 290a and guided by the driven intermediate roller hook head guide 290a to move vertically up and down, so that the opening and closing of the driving hook head 224 of the first end 221 of the intermediate roller driving hook head swing arm 220 and the driven hook head 224a of the first end 221a of the intermediate roller driven hook head swing arm 220a are moved vertically up and down.
In addition, the opening and closing of the driving hook 234 of the first end 231 of the work roll driving hook swing arm 230 and the driven hook 234a of the first end 231a of the work roll driven hook swing arm 230a are swing motions.
The working process of the invention is as follows:
1. the traverse car 100 is driven by a traverse car driving mechanism 110 (not shown) including a motor to stop when traveling on a traverse rail 120 to a rolling mill station;
2. the motor 320 in the roll extracting device driving mechanism 300 is started, the motor 320 drives the speed reducing mechanism 330 to work, the speed reducing mechanism 330 drives the chain wheel 340 to rotate, the chain wheel 340 is meshed with a chain 350 erected on the cross sliding frame 130, the whole roll extracting device driving mechanism 300 is driven to move on the cross sliding frame 130 through the meshing of the chain wheel 340 and the chain 350, and the roll extracting device driving mechanism 300 drives the roll extracting device 200 to move in the longitudinal direction perpendicular to the moving direction of the cross sliding frame 100 to reach the roll changing vehicle.
3. If a pair of intermediate rollers 500 need to be extracted, the intermediate roller electric cylinder 240 is started, so that the push rod 241 of the intermediate roller electric cylinder 240 moves downwards to apply acting force to the intermediate roller driving hook head swing arm 220, the second end 223 of the intermediate roller driving hook head swing arm 220 moves downwards after overcoming the resistance of the intermediate roller driving hook head swing arm return spring 250, the intermediate roller driving hook head swing arm return spring 250 is compressed, the first end 222 of the intermediate roller driving hook head swing arm 220 moves upwards, and the driving hook head 224 of the intermediate roller driving hook head swing arm 220 is driven to synchronously move upwards under the guidance of the driving intermediate roller hook head guide device 290; meanwhile, the intermediate roller driving hook swing arm 220 drives the intermediate roller driven hook swing arm 220a to synchronously move through the intermediate roller synchronous link motion mechanism 270, so that the first end 222a of the intermediate roller driven hook swing arm 220a moves downwards to drive the driving hook 224a of the intermediate roller driven hook swing arm 220a to synchronously move downwards under the guidance of the driven intermediate roller hook guide 290 a. When the driving hook 224 at the first end 221 of the driving hook swing arm 220 of the intermediate roller and the driven hook 224a at the first end 221a of the driven hook swing arm 220a of the intermediate roller are completely opened, the hooks 510 of the intermediate rollers 500 can be hooked, and the intermediate rollers 500 can be pulled out of the roller changing car and into the roller frame.
If a pair of working rolls 400 need to be extracted, the working roll electric cylinder 240a is started, so that the push rod 241a of the working roll electric cylinder 240a moves downwards to apply acting force to the working roll driving hook head swing arm 220a, the second end 233 of the working roll driving hook head swing arm 230 moves downwards after overcoming the resistance of the working roll driving hook head swing arm return spring 260, the working roll driving hook head swing arm return spring 260 is compressed, the first end 232 of the working roll driving hook head swing arm 230 swings upwards, and the driving hook head 234 of the working roll driving hook head swing arm 230 is driven to synchronously swing upwards; meanwhile, the working roll driving hook swing arm 230 drives the working roll driven hook swing arm 230a to swing synchronously through the working roll synchronous connecting rod motion mechanism 280, so that the first end 232a of the working roll driven hook swing arm 230a swings downwards to drive the driving hook 234a of the working roll driven hook swing arm 230a to swing downwards synchronously. When the driving hook 234 at the first end 231 of the work roll driving hook swing arm 230 and the driven hook 234a at the first end 231a of the work roll driven hook swing arm 230a swing to be completely opened, the hooks 410 of the pair of work rolls 400 can be hooked, and the pair of work rolls 400 can be pulled out of the roll changing car and pulled into the roll stand.
In addition, the electric cylinder 240 for the intermediate roll and the electric cylinder 240a for the working roll can be selected to work simultaneously as required, and the pair of intermediate rolls 500 and the pair of working rolls 400 can be drawn out from the roll changing carriage and pulled into the roll frame. Of course, only the electric cylinder 240 for the intermediate roll or the electric cylinder 240a for the working roll is selected to work, and the pair of intermediate rolls 500 or the pair of working rolls 400 are drawn out from the roll changing carriage and pulled into the roll frame.
Claims (6)
1. A multi-station roll extraction device, comprising:
the transverse moving vehicle is driven by a motor to travel on the transverse moving track;
the roll extracting device is movably arranged on the cross sliding vehicle and driven by a roll extracting device driving mechanism movably arranged on the cross sliding vehicle to move on the cross sliding vehicle; the moving direction of the roller extracting device is vertical to the moving direction of the transverse moving vehicle; when the roller extracting device works, the roller is hooked and is extracted into the roller frame from the roller changing vehicle, and then the roller is released.
2. A multi-station roll extraction apparatus as claimed in claim 1, wherein said roll extraction apparatus comprises:
the roller hook head mounting block is movably mounted on the transverse moving vehicle and is connected with a driving mechanism of a roller extraction device;
at least one electric cylinder arranged on the roller hook head mounting block, wherein the electric cylinder is provided with a push rod;
the roller hook mounting block is provided with a roller hook mounting block, the roller hook mounting block is provided with a roller, and the roller hook mounting block is provided with a roller; the tail end of a push rod of the electric cylinder is hinged with the driving hook head swing arm, and the hinged position of the push rod is located between the fulcrum of the driving hook head swing arm and the second end of the driving hook head swing arm; the second end of the driving hook head swing arm is connected with the roller hook head mounting block through a driving hook head swing arm reset spring;
at least one driven gib head swing arm, driven gib head swing arm has first end and second end the first end of driven gib head swing arm is provided with driven gib head, the second end hinge of driven gib head swing arm is established on the roll gib head installation piece and through a synchronous link motion mechanism with initiative gib head swing arm synchronous connection, wherein, synchronous link motion mechanism's one end with the second end fixed connection of driven gib head swing arm, synchronous link motion mechanism with initiative gib head swing arm fixed connection department is located the fulcrum position of initiative gib head swing arm.
3. A multi-station roll extracting device as claimed in claim 2, wherein the number of the driving gib head swing arms is two, the driving gib head swing arms are divided into a middle roll driving gib head swing arm and a working roll driving gib head swing arm, the number of the driven gib head swing arms is also two, the driving gib head swing arms are divided into a middle roll driving gib head swing arm and a working roll driving gib head swing arm, and the middle roll driving gib head swing arms and the middle roll driven gib head swing arms are distributed on the roll gib head mounting block in an up-and-down symmetrical manner; the working roll driving hook head swing arm and the working roll driven hook head swing arm are also distributed on the roll hook head mounting block in an up-down symmetrical mode; the two electric cylinders are divided into a middle roller electric cylinder and a working roller electric cylinder, wherein the tail end of a push rod of the middle roller electric cylinder is hinged with the middle roller driving hook head swing arm, and the hinged position of the push rod is positioned between the fulcrum of the middle roller driving hook head swing arm and the second end of the middle roller driving hook head swing arm; the tail end of a push rod of the working roller electric cylinder is hinged with the working roller driving hook head swing arm, and the hinged position of the push rod is positioned between the fulcrum of the working roller driving hook head swing arm and the second end of the working roller driving hook head swing arm; the synchronous connecting rod motion mechanisms are also provided with two sets and are divided into a middle roller synchronous connecting rod motion mechanism and a working roller synchronous connecting rod motion mechanism, one end of the middle roller synchronous connecting rod motion mechanism is fixedly connected with the second end of the middle roller driven hook head swing arm, the other end of the middle roller synchronous connecting rod motion mechanism is fixedly connected with the middle roller driving hook head swing arm, and the fixed connection position of the other end of the middle roller synchronous connecting rod motion mechanism and the middle roller driving hook head swing arm is positioned at the fulcrum position of the middle roller driving hook head swing arm; one end of the working roll synchronous connecting rod motion mechanism pair is fixedly connected with the second end of the working roll driven hook head swing arm, the other end of the working roll synchronous connecting rod motion mechanism is fixedly connected with the official and national roll driving hook head swing arm, and the fixed connection position of the other end of the working roll synchronous connecting rod motion mechanism and the working roll driving hook head swing arm is positioned at the fulcrum position of the working roll driving hook head swing arm; the two driving hook head swing arm reset springs are divided into a middle roller driving hook head swing arm reset spring and a working roller driving hook head swing arm reset spring, wherein the second end of the middle roller driving hook head swing arm is connected with the roller hook head mounting block through the middle roller driving hook head swing arm reset spring, and the second end of the working roller driving hook head swing arm is connected with the roller hook head mounting block through the working roller driving hook head swing arm reset spring.
4. A multi-station roll extracting device as claimed in claim 3, wherein the intermediate roll driving gib swing arm and the intermediate roll driven gib swing arm are located outside the work roll driving gib swing arm and the work roll driven gib swing arm, respectively.
5. A multi-station roll extracting device as claimed in claim 4, wherein a driving intermediate roll hook guide and a driven intermediate roll hook guide are symmetrically arranged on the roll hook mounting block, and the driving hook of the first end of the intermediate roll driving hook swing arm is inserted into the driving intermediate roll hook guide and guided by the driving intermediate roll hook guide to move vertically up and down; the driven hook head at the first end of the middle roller driven hook head swing arm is inserted into the driven middle roller hook head guide device and guided by the driven middle roller hook head guide device to vertically move up and down, so that the opening and closing of the driving hook head at the first end of the middle roller driving hook head swing arm and the driven hook head at the first end of the middle roller driven hook head swing arm are vertically moved up and down; the opening and closing of the driving hook head at the first end of the driving hook head swing arm of the working roll and the driven hook head at the first end of the driven hook head swing arm of the working roll are swinging motion.
6. A multi-station roll extracting device according to any one of claims 1 to 5, wherein the roll extracting device driving mechanism comprises a driving mechanism mounting bracket, a motor and a speed reducing mechanism, the driving mechanism mounting bracket is movably mounted on the cross-sliding vehicle through a traveling wheel, a power output end of the motor is connected with a power input end of the speed reducing mechanism, a chain wheel is arranged at a power output end of the speed reducing mechanism, the motor drives the speed reducing mechanism to work, the speed reducing mechanism drives the chain wheel to rotate, the chain wheel is meshed with a chain arranged on the cross-sliding vehicle, and the whole roll extracting device driving mechanism is driven to reciprocate on the cross-sliding vehicle through meshing of the chain wheel and the chain; and the roller hook head mounting block is connected with the driving mechanism mounting bracket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111598602.8A CN114273439A (en) | 2021-12-24 | 2021-12-24 | Multistation roll draw-out device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111598602.8A CN114273439A (en) | 2021-12-24 | 2021-12-24 | Multistation roll draw-out device |
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| CN114273439A true CN114273439A (en) | 2022-04-05 |
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| CN202111598602.8A Pending CN114273439A (en) | 2021-12-24 | 2021-12-24 | Multistation roll draw-out device |
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| DE3644780C1 (en) * | 1986-12-23 | 1988-04-07 | Mannesmann Ag | Two-roll cross-rolling mill with driven rolls arranged one above the other |
| DE3722054A1 (en) * | 1987-07-03 | 1989-01-12 | Schloemann Siemag Ag | Apparatus for the axial displacement of rollers in hot and cold rolling mills |
| JP2000126806A (en) * | 1998-10-23 | 2000-05-09 | Kawasaki Heavy Ind Ltd | Device for changing roll of rolling mill |
| CN201192696Y (en) * | 2008-03-14 | 2009-02-11 | 中冶集团北京冶金设备研究设计总院 | Fast roller replacing apparatus of cold-rolling mill |
| JP2010162551A (en) * | 2009-01-13 | 2010-07-29 | Nippon Steel Corp | Method of drawing out work roll and work roll changing device |
| CN102151698A (en) * | 2011-05-06 | 2011-08-17 | 福建金锋钢业有限公司 | Roll replacement equipment for working roll of rolling mill |
| CN202779179U (en) * | 2012-07-26 | 2013-03-13 | 上海梅山钢铁股份有限公司 | Roller replacing device |
| CN203140441U (en) * | 2013-01-07 | 2013-08-21 | 鞍钢重型机械有限责任公司 | Walking hydraulic cylinder roller replacement device |
| CN104438343A (en) * | 2014-11-11 | 2015-03-25 | 中冶陕压重工设备有限公司 | Hook structure for temper mill roller changing |
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