CN213288146U - Roll changing lifting appliance and roll changing device for replacing finish rolling supporting roll - Google Patents
Roll changing lifting appliance and roll changing device for replacing finish rolling supporting roll Download PDFInfo
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- CN213288146U CN213288146U CN202020576362.6U CN202020576362U CN213288146U CN 213288146 U CN213288146 U CN 213288146U CN 202020576362 U CN202020576362 U CN 202020576362U CN 213288146 U CN213288146 U CN 213288146U
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- 238000005096 rolling process Methods 0.000 title claims abstract description 26
- 230000008859 change Effects 0.000 claims abstract description 70
- 239000000725 suspension Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
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- 238000004904 shortening Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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Abstract
The utility model discloses a roll change hoist and roll change device for changing finish rolling backing roll, the roll change hoist includes: the device comprises a cross beam, a suspension arm, a holding arm and a holding hook; one end of the suspension arm is fixedly connected with the upper surface of the cross beam, and the other end of the suspension arm is used for connecting a crown block; the arm comprises a first arm support and a second arm support, the first arm support and the second arm support are symmetrically arranged at two ends of the cross beam in the width direction, and a first gap is kept; the first end of the first arm support and the first end of the second arm support are both connected with the cross beam; the second end of the first arm support extends downwards and is connected with the first clasping hook in a limiting rotation mode, and the second end of the second arm support extends downwards and is connected with the second clasping hook in a limiting rotation mode; a second gap is kept between the first holding hook and the second holding hook along the width direction of the cross beam; the two end faces of the beam in the length direction are respectively provided with a connecting unit, and the connecting units are used for being connected with the roller changing stool through ropes. This application has avoided the overhead traveling crane to change repeatedly the loaded down with trivial details step of hanging hoist and roll change bench through the direct handling of roll change hoist roll change bench.
Description
Technical Field
The utility model relates to a technical field that metallurgical industry rolling mill was maintained especially relates to a roll change hoist and roll change device for changing finish rolling backing roll.
Background
At present, when the supporting rolls are replaced by the roll changing lifting appliance and the roll changing stool in finish rolling, the old supporting rolls need to be lifted down first and then the new supporting rolls can be replaced. The whole replacement process is as follows: the lower supporting roll is pulled out of the rolling mill, a steel wire rope is hung by a crown block, a roll changing stool is lifted to a lower supporting roll, the roll changing stool is dismounted, the lower supporting roll and the roll changing stool are pushed into the rolling mill, an upper supporting roll is dropped on the roll changing stool, the upper supporting roll, the lower supporting roll and the roll changing stool are pulled out of the rolling mill together, at the moment, a lifting appliance needs to be hung again to lift the upper roll away, then the lifting appliance needs to be dismounted to hang the steel wire rope to lift the roll changing stool on the lower roll away, and finally the steel wire rope and the roll changing stool need to be dismounted, and the lower supporting roll is lifted away by; when a new supporting roller is installed, the lifting appliance and the roller changing stool are repeatedly replaced according to the same method.
Therefore, in the process of replacing the finish rolling support rollers in the prior art, the roller changing lifting tool and the roller changing stool need to be replaced repeatedly, the steps are complex, the shortening of the roller changing time is severely limited, and the number of operators and the labor intensity are increased.
Disclosure of Invention
The embodiment of the application solves the problem that the roll changing hanger and the roll changing stool need to be repeatedly changed in the process of changing the finish rolling support roll, and the steps are complex, so that the shortening of the roll changing time is seriously restricted, and the quantity of operators and the labor intensity are increased.
In a first aspect, the present application provides the following technical solutions through an embodiment of the present application:
a roll change hoist for changing a finish rolling backup roll, comprising: the device comprises a cross beam, a suspension arm, a holding arm and a holding hook; one end of the suspension arm is fixedly connected with the upper surface of the cross beam, and the other end of the suspension arm is used for connecting a crown block; the arm comprises a first arm support and a second arm support, and the first end of the first arm support and the first end of the second arm support are both connected with the cross beam; the second end of the first arm support extends downwards and is connected with the first clasping hook in a limiting rotation mode, and the second end of the second arm support extends downwards and is connected with the second clasping hook in a limiting rotation mode; the first arm support and the second arm support are symmetrically arranged at two ends of the cross beam in the width direction, and a first gap is kept, and the first gap is used for accommodating a supporting roller or a roller changing stool; a second gap is kept between the first clasping hook and the second clasping hook along the width direction of the cross beam; and the two end surfaces of the beam in the length direction are respectively provided with a connecting unit, and the connecting units are used for connecting the roller changing stool through ropes.
In one embodiment, the number of the arms is two; the two embracing arms are symmetrically arranged at two ends of the beam in the length direction.
In one embodiment, the number of the suspension arms is two, and the suspension arms are symmetrically arranged along the central line of the length direction of the beam.
In a second aspect, the present application provides the following technical solutions through an embodiment of the present application:
a roll changing device for changing a finish rolling supporting roll comprises a roll changing stool and the roll changing sling of any one of the first aspect;
the roll changing stool comprises: the stool column is arranged below the stool surface and used for supporting the stool surface;
trunnions are arranged on two end faces of the stool column in the length direction of the roll changing stool, and the diameter of one end, far away from the stool column, of each trunnions is larger than that of one end, close to the stool column, of each trunnions;
the connecting units at the two ends of the roll changing sling are respectively connected with the trunnions at the two ends of the roll changing stool through ropes.
In one embodiment, an end of the trunnion remote from the stool column has a rim extending in a width direction of the roll changing stool.
In one embodiment, the roll changing stool further comprises: a base disposed below the stool column;
and the base is provided with a positioning bolt hole.
In one embodiment, the roller-changing stool comprises a first stool body and a second stool body, the stool surface comprises a first stool surface and a second stool surface, and the stool columns comprise a first stool column and a second stool column, wherein the first stool body comprises the first stool surface and the first stool column arranged below the first stool surface, and the second stool body comprises the second stool surface and the second stool column arranged below the second stool surface;
the first stool body and the second stool body are connected through an I-shaped frame, and the direction of the first stool body and the second stool body is the length direction of the roll changing stool;
the end face of the first stool column far away from the second stool column and the end face of the second stool column far away from the first stool column are respectively provided with the trunnion.
In one embodiment, the length of the beam of the roll changing sling is less than or equal to that of the roll changing stool, and the length of the roll changing stool is the length of the stool surface.
In one embodiment, the first gap is larger than a diameter of the support roller and the second gap is smaller than the diameter of the support roller.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
this application is through setting up the linkage unit at roll change hoist both ends face, through linkage unit and rope, realize being connected with the roll change bench, when changing the backing roll, needn't lift the roll change hoist off and load on the roll change bench, but behind accessible linkage unit lug connection roll change bench, through the direct handling of roll change hoist roll change bench, avoided the overhead traveling crane to change the loaded down with trivial details step that hangs hoist and roll change bench repeatedly, reduced roll change time and operation personnel quantity and intensity of labour.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a roll changing sling and a roll changing stool for changing a finish rolling support roll according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a roll changing stool for changing a finish rolling support roll according to an embodiment of the present application;
FIG. 3 is a front view of a roll changing device for changing a finishing backup roll according to an embodiment of the present application.
Detailed Description
The embodiment of the application solves the problem that the roll changing hanger and the roll changing stool need to be repeatedly changed in the process of changing the finish rolling support roll, and the steps are complex, so that the shortening of the roll changing time is seriously restricted, and the quantity of operators and the labor intensity are increased.
A roll change hoist for changing a finish rolling backup roll, comprising: the device comprises a cross beam, a suspension arm, a holding arm and a holding hook; one end of the suspension arm is fixedly connected with the upper surface of the cross beam, and the other end of the suspension arm is used for connecting a crown block; the arm comprises a first arm support and a second arm support, and the first end of the first arm support and the first end of the second arm support are both connected with the cross beam; the second end of the first arm support extends downwards and is connected with the first clasping hook in a limiting rotation mode, and the second end of the second arm support extends downwards and is connected with the second clasping hook in a limiting rotation mode; the first arm support and the second arm support are symmetrically arranged at two ends of the cross beam in the width direction, and a first gap is kept, and the first gap is used for accommodating a supporting roller or a roller changing stool; a second gap is kept between the first clasping hook and the second clasping hook along the width direction of the cross beam; and the two end surfaces of the beam in the length direction are respectively provided with a connecting unit, and the connecting units are used for connecting the roller changing stool through ropes.
This application is through setting up the linkage unit at roll change hoist both ends face, through linkage unit and rope, realize being connected with the roll change bench, when changing the backing roll, needn't lift the roll change hoist off and load on the roll change bench, but behind accessible linkage unit lug connection roll change bench, through the direct handling of roll change hoist roll change bench, avoided the overhead traveling crane to change the loaded down with trivial details step that hangs hoist and roll change bench repeatedly, reduced roll change time and operation personnel quantity and intensity of labour.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
As shown in fig. 1 and 3, the present embodiment provides a roll changing spreader 1 for changing a finishing backup roll, comprising: the device comprises a beam 11, a suspension arm 12, a holding arm 13 and a holding hook 14;
one end of the suspension arm 12 is fixedly connected with the upper surface of the beam 11, and the other end of the suspension arm 12 is used for connecting a crown block;
specifically, one end of the boom 12 connected to the overhead traveling crane has a hole structure matched with the overhead traveling crane hook.
The arm 13 comprises a first arm support 131 and a second arm support 132, the first arm support 131 and the second arm support 132 are symmetrically arranged at two ends of the cross beam 11 in the width direction and maintain a first gap L1, and the first gap L1 is used for accommodating a supporting roller or a roll changing stool 2;
a first end of the first arm support 131 and a first end of the second arm support 132 are both connected with the cross beam 11; the second end of the first arm support 131 extends downwards and is connected with the first clasping hook 141 in a limited rotation manner, and the second end of the second arm support 132 extends downwards and is connected with the second clasping hook 142 in a limited rotation manner;
a second gap L2 is maintained between the first clasping hook 141 and the second clasping hook 142 in the width direction of the cross beam 11;
specifically, the second end of the first arm support 131 and the first clasping hook 141, and the second end of the second arm support 132 and the second clasping hook 142 are connected by a 90 ° limit rotating shaft and a resilient member (for example, a compression spring) in combination, so as to ensure that the first clasping hook 141 and the second clasping hook 142 can rotate upwards when the support roller enters the first gap L1, and the first clasping hook 141 and the second clasping hook 142 automatically return to a horizontal state after the support roller enters the first gap L1, so as to clasp the support roller;
and two end surfaces of the cross beam 11 in the length direction are respectively provided with a connecting unit 15, and the connecting units 15 are used for connecting the roller changing stool 2 through ropes 3.
Specifically, the connection unit 15 may be a screw bolt structure for locking the rope 3, or may be a suspension loop, in which case, hooks are required to be provided at two ends of the rope 3.
In this embodiment, through set up linkage unit 15 at roll change hoist 1 both ends face, through linkage unit 15 and rope 3, realize being connected with roll change bench 2, when changing the backing roll, needn't lift roll change hoist 1 off and load roll change bench 2, but accessible linkage unit 15 lug connection roll change bench 2 back, through roll change hoist 1 direct handling roll change bench 2, avoided the overhead traveling crane to change the loaded down with trivial details step of hanging hoist and roll change bench 2 repeatedly, roll change time and operating personnel quantity and intensity of labour have been reduced.
As an alternative embodiment, the number of the holding arms 13 is two;
the two embracing arms 13 are symmetrically arranged at two ends of the cross beam 11 in the length direction.
In order to better hold the supporting roller and avoid safety accidents caused by falling of the supporting roller, and meanwhile, in consideration of material cost, only one group of holding arms 13 are respectively arranged at two ends of the cross beam 11 in the length direction.
As an alternative embodiment, the number of the suspension arms 12 is two, and the two suspension arms are symmetrically arranged along the central line of the length direction of the beam 11.
This embodiment is connected with the lifting hook of overhead traveling crane through the davit 12 that two symmetries set up, can guarantee the balance of whole roll change hoist 1, avoids the rollover accident of handling in-process.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
in the embodiment, the connecting units are arranged on the two end faces of the roller changing lifting tool, the connecting units and the ropes are used for connecting the roller changing stool, when the supporting rollers are replaced, the roller changing lifting tool does not need to be dismounted and mounted on the roller changing stool, the roller changing stool can be directly lifted and transported by the roller changing lifting tool after the roller changing stool is directly connected through the connecting units, the tedious steps of repeatedly replacing the hanging lifting tool and the roller changing stool by the overhead travelling crane are avoided, and the roller changing time, the number of operating personnel and the labor intensity are reduced.
Example two
As shown in fig. 1, 2 and 3, the present embodiment provides a roll changing device for changing a finish rolling support roll, which comprises a roll changing stool shown in fig. 2 and a roll changing sling 1 according to any one of the first embodiment;
the roll changing stool 2 includes: a stool surface 21 for supporting the supporting roller, a stool column 22 arranged below the stool surface 21 for supporting the stool surface 21;
the stool column 22 is located the both ends face of roll change stool 2 length direction all is provided with trunnion 23, the diameter of trunnion 23 the one end of keeping away from stool column 22 is greater than the diameter that trunnion 23 is close to the one end of stool column 22, trunnion 23 is used for connecting roll change hoist 1 through rope 3.
It should be noted that, in order to prevent the rope 3 from falling off during the lifting, the diameter of the end of trunnion 23 away from stool column 22 needs to be larger than the diameter of the end of trunnion 23 close to stool column 22.
In this embodiment, set up trunnion 23 through two terminal surfaces at roll change bench 2, through trunnion 23 and rope 3, realize the cooperation with roll change hoist 1, when the backing roll is gone up in the change, needn't lift roll change hoist 1 off and load roll change bench 2, but accessible trunnion 23 directly will roll change bench 2 and connect on roll change hoist 1, through roll change hoist 1 direct handling roll change bench 2, the loaded down with trivial details step of hanging hoist and roll change bench 2 has been avoided the overhead traveling crane to change repeatedly, roll change time and operating personnel quantity and intensity of labour have been reduced.
As an alternative embodiment, the end of the trunnion 23 away from the stool column 22 has a rim extending in the width direction of the roll changing stool 2.
In this embodiment, the edge is provided at the distal end of the trunnion 23, so that the rope 3 can be prevented from falling off, and the rope 3 can be simply and quickly loaded and unloaded.
As an alternative embodiment, the method further comprises: a base 24, said base 24 being disposed below said stool column 22;
the base 24 is provided with a positioning bolt hole.
Correspondingly, be provided with corresponding location bolt hole on the bearing frame of lower backing roll, pass through the bolt location between roll change bench 2 and the bearing frame, can put roll change bench 2 on lower backing roll accurately, firmly.
As an alternative embodiment, the roll-changing stool 2 includes a first stool body 25 and a second stool body 26, the stool surface 21 includes a first stool surface 211 and a second stool surface 212, and the stool column 22 includes a first stool column 221 and a second stool column 222, wherein the first stool body 25 includes the first stool surface 211 and the first stool column 221 disposed below the first stool surface 211, and the second stool body 26 includes the second stool surface 212 and the second stool column 222 disposed below the second stool surface 212;
the first stool body 25 and the second stool body 26 are connected through an I-shaped rack 27, and the direction of the first stool body 25 and the second stool body 26 is the length direction of the roll changing stool 2;
the end surface of the first stool column 22 away from the second stool column 22 and the end surface of the second stool column 22 away from the first stool column 22 are respectively provided with the trunnion 23.
It should be noted that, the two stool bodies are connected through the i-shaped frame 27, so that the supporting strength of the whole roll-changing stool 2 can be enhanced, and compared with the roll-changing stool 2 with only one stool body in the prior art, a large amount of materials can be saved.
The roll changing stool shown in figure 2 is characterized in that trunnions are arranged on two end faces of the roll changing stool, and the cooperation with a roll changing lifting tool is realized through the trunnions and ropes.
In the roll changing device for changing the finish rolling back-up rolls provided by the embodiment, the connecting units 15 at the two ends of the roll changing sling 1 are respectively connected with the trunnions 23 at the two ends of the roll changing stool 2 through the ropes 3.
Specifically, the rope 3 is a steel wire rope, two ends of the steel wire rope are connected with the connecting unit 15, and the part between the two ends of the steel wire rope bypasses the trunnion 23, so that the roll changing stool 2 is hung below the roll changing sling 1 through the trunnion 23.
It should be noted that, in order to facilitate quick hoisting, two ends of the steel wire rope can be fixed on the connecting units 15 at two ends of the roll-changing sling 1; meanwhile, in order to facilitate replacement of the steel wire rope when the steel wire rope is old, the two ends of the steel wire rope are detachably connected with the roll changing sling 1.
As an alternative embodiment, the length of the beam 11 of the roll changing sling 1 is less than or equal to the length of the roll changing stool 2, and the length of the roll changing stool 2 is the length of the stool surface 21.
For avoiding handling in-process rope 3 the problem that drops, this embodiment sets the length of crossbeam 11 to the length that is less than or equal to roll change bench 2, avoids 11 overlengths of crossbeam to lead to rope 3 to drag, and then leads to the problem that rope 3 drops.
As an alternative embodiment, the first gap L1 is greater than the diameter of the supporting roller, and the second gap L2 is smaller than the diameter of the supporting roller or the width of the roll-changing stool 2.
The supporting rollers can be guaranteed to be accommodated by the arrangement of the first gap L1, and the supporting rollers can be guaranteed to be embraced by the second gap L2, so that the supporting rollers can be conveniently lifted.
Further, the first gap L1 should be greater than the width of the roll changing stool 2 (the width of the stool surface 21), and the width of the stool column 22 of the roll changing stool 2 is smaller than the second gap L2, so as to ensure that the first gap L1 and the second gap L2 can ensure that the roll changing stool 2 is accommodated in the process of hoisting the roll changing stool 2 by the roll changing sling 1, and the hoisting of the roll changing stool 2 is realized.
It should be noted that the width of the roll changing stool 2 is the same as the width of the bearing seat of the upper and lower support rolls.
The detailed functions and the using method thereof are respectively described as follows:
the roll changing stool 2 is hung under a steel wire rope through trunnions 23 at two ends, the steel wire rope is fixed on the roll changing sling 1, the roll changing sling 1 hoists the roll changing stool 2 to the position of a lower supporting roll, and accurately and stably places the roll changing stool on a bearing seat of the lower supporting roll through a positioning pin, the lower supporting roll and the roll changing stool 2 are pushed into the rolling mill by a hydraulic cylinder, an upper supporting roll falls on the roll changing stool 2 by a shoulder beam, and the upper supporting roll, the lower supporting roll and the roll changing stool 2 are pulled out together by the hydraulic cylinder. The roll changing lifting appliance 1 lifts the upper supporting roll away through the clasping hook 14, the upper supporting roll is lifted off, then the roll changing lifting appliance 1 is connected with the trunnion 23 of the roll changing stool 2 through a steel wire rope, the roll changing stool 2 is lifted away, the roll changing stool 2 is lifted off, and the roll changing lifting appliance 1 lifts the lower supporting roll away through the lifting hook. The new lower supporting roll is placed on a sliding rail through a clasp hook 14 by a roll changing hanger 1, a trunnion 23 of a roll changing stool 2 is hung by a steel wire rope on the roll changing hanger 1, the roll changing stool 2 is placed on a lower supporting roll, the upper supporting roll is placed on the roll changing stool 2 by the roll changing hanger 1 through the clasp hook 14, the upper supporting roll, the lower supporting roll and the roll changing stool 2 are pushed into a rolling mill by a hydraulic cylinder, the upper supporting roll is lifted by a shoulder pole beam, the lower supporting roll and the roll changing stool 2 are pulled out by the hydraulic cylinder, the roll changing hanger 1 is hung on the trunnion 23 of the roll changing stool 2, the roll changing stool 2 is lifted off, the lower supporting roll is pushed into the rolling mill by the hydraulic cylinder, and roll changing is finished.
From this, compare and need lift the roller change hoist 1 off dress roller change bench 2 among the prior art, this embodiment accessible rope 3 realizes being connected between linkage unit 15 and trunnion 23 to the realization is direct to be connected roller change bench 2 on roller change hoist 1, through roller change hoist 1 direct handling roller change bench 2, has avoided the overhead traveling crane to change repeatedly and has hung the loaded down with trivial details step of hoist and roller change bench 2, has reduced roll change time and operating personnel quantity and intensity of labour.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a roll change hoist for changing finish rolling backing roll which characterized in that includes: the device comprises a cross beam, a suspension arm, a holding arm and a holding hook;
one end of the suspension arm is fixedly connected with the upper surface of the cross beam, and the other end of the suspension arm is used for connecting a crown block;
the arm comprises a first arm support and a second arm support, and the first end of the first arm support and the first end of the second arm support are both connected with the cross beam; the second end of the first arm support extends downwards and is connected with the first clasping hook in a limiting rotation mode, and the second end of the second arm support extends downwards and is connected with the second clasping hook in a limiting rotation mode;
the first arm support and the second arm support are symmetrically arranged at two ends of the cross beam in the width direction, and a first gap is kept, and the first gap is used for accommodating a supporting roller or a roller changing stool;
a second gap is kept between the first clasping hook and the second clasping hook along the width direction of the cross beam;
and the two end surfaces of the beam in the length direction are respectively provided with a connecting unit, and the connecting units are used for connecting the roller changing stool through ropes.
2. The roll change spreader for changing a finishing back-up roll according to claim 1, wherein the number of arms is two;
the two embracing arms are symmetrically arranged at two ends of the beam in the length direction.
3. The roll changing spreader for changing the finishing back-up rolls according to claim 1, wherein the number of the hanger arms is two and the hanger arms are symmetrically arranged along a center line of the length direction of the cross beam.
4. A roll changing device for changing a finish rolling supporting roll is characterized by comprising a roll changing stool and the roll changing lifting appliance according to any one of claims 1 to 3;
the roll changing stool comprises: the stool column is arranged below the stool surface and used for supporting the stool surface;
trunnions are arranged on two end faces of the stool column in the length direction of the roll changing stool, and the diameter of one end, far away from the stool column, of each trunnions is larger than that of one end, close to the stool column, of each trunnions;
the connecting units at the two ends of the roll changing sling are respectively connected with the trunnions at the two ends of the roll changing stool through ropes.
5. The roll changing apparatus for changing a finishing backup roll of claim 4, wherein an end of the trunnion away from the stool column has a rim extending in a width direction of the roll changing stool.
6. The roll changing apparatus for changing a finishing backup roll of claim 4, wherein the roll changing stool further comprises: a base disposed below the stool column;
and the base is provided with a positioning bolt hole.
7. Roll changing device for changing back-up rolls in finish rolling according to claim 4,
the roller-changing stool comprises a first stool body and a second stool body, the stool surface comprises a first stool surface and a second stool surface, the stool columns comprise first stool columns and second stool columns, the first stool body comprises the first stool surface and the first stool columns arranged below the first stool surface, and the second stool body comprises the second stool surface and the second stool columns arranged below the second stool surface;
the first stool body and the second stool body are connected through an I-shaped frame, and the direction of the first stool body and the second stool body is the length direction of the roll changing stool;
the end face of the first stool column far away from the second stool column and the end face of the second stool column far away from the first stool column are respectively provided with the trunnion.
8. Roll changing device for changing back-up rolls in finish rolling according to claim 4,
the length of the beam of the roll changing lifting appliance is less than or equal to that of the roll changing stool, and the length of the roll changing stool is the length of the stool surface.
9. The roll changing apparatus for changing a finishing backup roll of claim 4, wherein the first gap is larger than a diameter width of the backup roll, and the second gap is smaller than the diameter width of the backup roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020576362.6U CN213288146U (en) | 2020-04-17 | 2020-04-17 | Roll changing lifting appliance and roll changing device for replacing finish rolling supporting roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020576362.6U CN213288146U (en) | 2020-04-17 | 2020-04-17 | Roll changing lifting appliance and roll changing device for replacing finish rolling supporting roll |
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| Publication Number | Publication Date |
|---|---|
| CN213288146U true CN213288146U (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020576362.6U Active CN213288146U (en) | 2020-04-17 | 2020-04-17 | Roll changing lifting appliance and roll changing device for replacing finish rolling supporting roll |
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| Country | Link |
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| CN (1) | CN213288146U (en) |
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