CN216971712U - Lifting appliance for replacing dam roller in rolling mill - Google Patents
Lifting appliance for replacing dam roller in rolling mill Download PDFInfo
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- CN216971712U CN216971712U CN202220150994.5U CN202220150994U CN216971712U CN 216971712 U CN216971712 U CN 216971712U CN 202220150994 U CN202220150994 U CN 202220150994U CN 216971712 U CN216971712 U CN 216971712U
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- dam roller
- rolling mill
- dam
- main beam
- roller
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Abstract
The utility model discloses a lifting appliance for replacing an inner dam roller of a rolling mill, which solves the technical problem that the inner dam roller of the rolling mill is difficult to disassemble and install in the prior art. The lifting appliance for replacing the dam roller in the rolling mill comprises a main beam, a dam roller lifting device and a counterweight device, wherein the dam roller lifting device and the counterweight device are arranged on two sides of the main beam, the dam roller lifting device comprises a lifting mechanism and a connecting mechanism for connecting and installing the dam roller, and the counterweight device comprises a counterweight block, a transverse moving mechanism and a load-carrying piece. The lifting appliance for replacing the dam roller in the rolling mill, provided by the utility model, is simple to operate and convenient to use, the old dam roller can be quickly lifted out of the rolling mill and moved away through the operation of the crown block, the new dam roller is safely, accurately and stably moved to the working position, the moving process of the dam roller is efficient, safe and stable, and the lifting appliance has good popularization and use values.
Description
Technical Field
This application belongs to steel rolling equipment maintenance technical field, concretely relates to hoist is changed to dam roller in rolling mill.
Background
With the continuous development of the manufacturing industry, the demand of steel as an indispensable material for the manufacturing industry is gradually increased. As steel production equipment, the steel rolling mill is widely applied to various steel production fields. Dam rolls are installed on a beam between the exit sides of racks in many rolling mills to maintain the wrap angle of the strip steel against the tensiometer rolls and to remove emulsion adhering to the surface of the strip steel.
Because the mounted position of dam roller is deepened inside the frame, can't directly pass through the overhead traveling crane handling when changing the dam roller. And (4) binding the dam roller by a rope of a maintenance worker, and taking out and replacing the dam roller through a crown block. When the dam roller is replaced by the method, the dam roller is difficult to call out from the inside of the rolling mill, the hanging of the dam roller by the crown block is difficult to keep balance, the crown block is easy to cause unbalance of the weight of the whole body of the crown block, the rope and the dam roller, and the hanging can not be finished.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a lifting appliance for replacing a dam roller in a rolling mill, which can be expanded to lift and replace dam rollers with different weights by adjusting a counterweight device.
The technical scheme adopted for realizing the purpose of the utility model is that the lifting appliance for replacing the inner dam roller of the rolling mill comprises a main beam, a dam roller lifting device and a counterweight device, wherein:
the middle part of the main beam is provided with a hanging point for hooking a lifting hook of a crown block, the dam roller lifting device and the counterweight device are both arranged on the main beam, and the dam roller lifting device and the counterweight device are respectively positioned at two sides of the hanging point;
the dam roller hoisting device comprises a hoisting mechanism and a connecting mechanism for connecting and installing the dam roller, and the connecting mechanism is installed on the main beam through the hoisting mechanism;
the counterweight device comprises a counterweight block, a transverse moving mechanism and a load-carrying piece, wherein the transverse moving mechanism is arranged on the main beam, the load-carrying piece is in sliding fit with the main beam through the transverse moving mechanism, and the counterweight block is arranged on the load-carrying piece.
Optionally, an installation part is arranged at one end of the main beam, and the hoisting mechanism is installed on the installation part.
Optionally, two second lifting lugs are arranged on the mounting portion, the lifting mechanism is a steel wire rope, and the steel wire rope is connected to the two second lifting lugs; the connecting mechanism is a steel wire rope, and the steel wire rope is bound and connected with the dam roller; or the connecting mechanism is a plurality of fixed claws used for grabbing and installing the dam roller.
Optionally, the hoisting mechanism is a set of hoisting mechanism, the connecting mechanism includes a plurality of fixed claws for grabbing and installing the dam roller, and the fixed claws are all connected to the hoisting mechanism.
Optionally, the main beam is of an i-steel structure, and sliding grooves are formed on two sides of the i-steel structure respectively; the top end of the load-carrying part is provided with pulleys in sliding fit with the sliding grooves, and the bottom end of the load-carrying part is provided with the balancing weight.
Optionally, the traversing mechanism includes a screw rod, a nut matched with the screw rod, a screw rod base and a handle, the screw rod base is arranged at one end of the main beam, the screw rod is matched with the screw rod base in a rotating manner, the screw rod is arranged along the axial direction of the main beam, the handle is fixedly connected with one end of the screw rod, the load-carrying piece is sleeved on the nut, and the load-carrying piece is located between the hanging point and the handle.
Optionally, a thrust block is arranged at an end of the main beam, the lead screw penetrates through the thrust block, and the thrust block is located between the load member and the handle.
Optionally, the hanging point is a first lifting lug arranged on the main beam.
Optionally, the upper part of the load-carrying member is slidably connected to the main beam or the traversing mechanism, and the lower part of the load-carrying member is used for connecting to the counterweight; the balancing weight is provided with more than two.
Optionally, a reinforcing rib is arranged on the main beam and located between the dam roller lifting device and the counterweight device.
According to the technical scheme, the lifting appliance for replacing the inner dam roller of the rolling mill comprises a main beam, a dam roller lifting device and a counterweight device. Wherein, dam roller hoisting accessory and counter weight device are all installed on the girder. The middle part of the main beam is provided with a hanging point for hanging a crane hook, the crane hook lifts and moves the replacing hanger of the inner dam roller of the rolling mill through the hanging point, and a supporting point for lifting and putting down the dam roller is provided for the replacing hanger of the inner dam roller of the rolling mill. The dam roller hoisting device and the counterweight device are respectively arranged on two sides of the hoisting point. The dam roller hoisting device comprises a hoisting mechanism and a connecting mechanism, wherein the connecting mechanism is connected with and used for installing the dam roller and is connected to the main beam through the hoisting mechanism. Before lifting by crane the dam roller, adjust the counter weight device that is located the girder other end, the counter weight device includes the balancing weight, sideslip mechanism and load, sideslip mechanism sets up on the girder, load is connected with sideslip mechanism and can with girder relative slip, the balancing weight sets up on load, after load drives balancing weight and girder relative slip, the balancing weight has changed with the interval of hanging the point, consequently, the moment of counter weight device one side has changed, it is balanced with the moment of the dam roller hoisting device one side of installing the dam roller, make whole dam roller hoisting process stable, safety.
Compared with the prior art, the hanger for replacing the inner dam roller of the rolling mill, provided by the utility model, is simple to operate and convenient to use. The dam roller replacing hanger in the rolling mill provided by the utility model is used for replacing the dam roller in the rolling mill, the old dam roller can be stably moved out of the rolling mill, and the new dam roller is stably placed in the rolling mill, so that the whole replacing process is stable and safe, the dam roller replacing difficulty is reduced, the dam roller replacing efficiency is improved, and the popularization and use values are higher.
Drawings
Fig. 1 is a schematic structural view of a hanger for replacing a dam roll in a rolling mill according to an embodiment of the present invention.
Description of reference numerals: 1-main beam, 11-first lifting lug, 12-mounting part and 13-sliding chute; 2-a dam roller hoisting device, 21-a hoisting mechanism and 22-a connecting mechanism; 3-counterweight device, 31-traversing mechanism, 311 leading screw, 312 leading screw base, 313-handle, 32-loading piece, 321-pulley and 33-counterweight block; 4-reinforcing ribs; 5-dam roll.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
The embodiment of the utility model provides a lifting appliance for replacing a dam roller in a rolling mill, which is used for stably, safely and efficiently replacing the dam roller in the rolling mill and ensuring the safety of operators. The structure of each part of the hanger for replacing the dam roller in the rolling mill is described in detail as follows:
main beam 1 is the major structure that the hoist was changed to dam roller in the rolling mill, is provided with the hanging point that is used for supplying overhead traveling crane lifting hook on main beam 1, and dam roller hoisting device 2 and counter weight device 3 set up at the both ends of main beam 1, and the hanging point lies in between dam roller hoisting device 2 and the counter weight device 3, and the concrete position of hanging point need combine actual conditions to set up. The main beam 1 can adopt the existing common structure, and the hardness and the strength required when the dam roller is hoisted can be met.
The lifting appliance for replacing the inner dam roller of the rolling mill provided by the embodiment of the utility model is of a lever structure, wherein a main beam 1 is a lever; the hanging point is a fulcrum of the lever; the distance between the dam roller hoisting device 2 and the hoisting point is a resistance arm, and the weight of the dam roller is resistance applied to the lever; the distance between the counterweight device 3 and the hanging point is a power arm, and the weight of the counterweight block 33 is power applied to the lever.
Referring to fig. 1, in this embodiment, an i-beam structure is adopted for the main beam 1, and two sides of the i-beam structure form sliding grooves 13 respectively. The hanging point adopts a lifting lug structure, in particular to a first lifting lug 11 arranged on the main beam. The distance between the first lifting lug 11 and the counterweight device 3 is smaller than the distance between the first lifting lug 11 and the dam roller lifting device 2, namely the length of the power arm is smaller than that of the resistance arm.
An installation part 12 is further arranged at one end of the main beam 1, and the dam roller hoisting device 2 is connected to the installation part 12. The dam roller hoisting device 2 comprises a hoisting mechanism 21 and a connecting mechanism 22, wherein the connecting mechanism 22 is used for connecting and installing the dam roller 5, so that a dam roller replacing hoisting tool in the rolling mill can move the dam roller 5 out of the rolling mill or move the dam roller 5 to an installation position in the rolling mill; the lifting mechanism 21 is used to connect the connecting mechanism 22 to the mounting portion 12. The hoisting mechanism 21 and the connecting mechanism 22 can be in various forms as long as the hoisting mechanism and the connecting mechanism can hoist and move the dam roller in a matching way. For example, the hoisting mechanism 21 can adopt a set of hoisting mechanism, the number of hoisting is no less than two, the connecting structure 22 is a fixed claw capable of grabbing the fixed dam roller 5, each hoisting is connected with a fixed claw, and after the fixed claws grab the dam roller 5 in coordination, all the fixed claws are positioned at the same horizontal height through hoisting adjustment, so that the dam roller 5 can be horizontally hoisted and moved.
Referring to fig. 1, in the present embodiment, the hoisting mechanism 21 and the connecting mechanism 22 are both steel cables, and the mounting portion 12 is provided with two mounting holes. After the dam roller 5 is bound and fixed through the steel wire rope, the steel wire rope penetrates through the two mounting holes in the mounting portion 12, and the dam roller hoisting device provided with the dam roller 5 is connected to the main beam 1. The dam roller 5 is bound and connected by using the steel wire rope, only two sides of the dam roller 5 can be bound, and one section of the middle part of the dam roller 5 can also be bound, so that the dam roller 5 is prevented from falling off and rotating and deviating in the hoisting and moving process of the dam roller 5. In this embodiment, the wire rope binds and fixes both ends of the dam roll 5.
The counterweight device 3 comprises a transverse moving mechanism 31, a load-carrying piece 32 and a counterweight 33, wherein the transverse moving mechanism 31 is arranged on the main beam 1, the load-carrying piece 32 is connected with the transverse moving mechanism 31 in a matching way, and the counterweight 33 is arranged on the load-carrying piece 32. The counterweight device 3 is used for adjusting the moment that the main beam 1 is provided with 3 one ends of the counterweight device, so that the two ends of the hanger for replacing the dam roller in the rolling mill are stressed in a balanced manner, the whole process of moving the dam roller is kept stable, the phenomenon that the main beam 1 inclines can not occur, the dam roller can not fall off from the connecting mechanism 22 in the replacement process, the working equipment is damaged, and the safety of operators is also ensured.
There are two common ways of adjusting the moment, one is adjusting the length of the moment arm and the other is adjusting the magnitude of the force. In the lifting appliance for replacing the inner dam roller of the rolling mill disclosed by the utility model, the moment of power at one end of the main beam 1, which is provided with the counterweight device 3, is adjusted through the counterweight device 3, two ways of adjusting the counterweight device 3 exist, the length of a power arm is correspondingly changed by changing the position of the counterweight block 33, and the power is correspondingly changed by changing the weight of the counterweight block 33.
Referring to fig. 1, in the present embodiment, pulleys 321 are disposed on both sides of the top end of the load-carrying member 32, and the pulleys 321 are in sliding fit with the sliding groove 13; the transverse moving mechanism 31 comprises a lead screw 311, a lead screw base 312 and a handle 313, wherein the lead screw base 312 is arranged at the edge of one end of the main beam 1, the lead screw 311 is in running fit with the lead screw base 312, the lead screw 311 is arranged along the axial direction of the main beam 1, and the handle 313 is fixedly connected to one end of the lead screw 311; the load-carrying piece 32 is sleeved with a screw nut matched with the screw 311, the load-carrying piece 32 is matched with the screw 311 through the screw nut, and the load-carrying piece 32 is positioned between the first lifting lug 11 and the handle 313; a weight 33 is attached to the bottom of the load member 32. The rotating handle 313 drives the screw 311 to rotate together, the load-carrying piece 32 drives the counterweight 33 to move under the action of the screw nut, the position of the counterweight 33 is changed, the distance between the counterweight 33 and the first lifting lug 11, namely the power arm, is changed, and the operation plays a role in adjusting the power moment. The screw base 312 is disposed at one end of the main beam 1 and between the handle 313 and the counterweight, and in this embodiment, the screw base 312 is disposed at the edge of the main beam 1 and serves as a thrust block for limiting the load member 32 to continue moving toward the handle 313.
In practice, the load member 32 may have various forms, and the connection between the load member 32 and the weight 33 may be various. Specifically, the load-carrying member 32 can be set to a tray structure, the weight-balancing members 33 are more than one, and the total weight of the load-carrying member 32, i.e., the power, is changed by placing different amounts or weights of the weight-balancing members 33 into the tray, so as to adjust the moment of power for replacing the spreader of the dam roller in the rolling mill.
Referring to fig. 1, in the present embodiment, the dam roll replacement hanger in the rolling mill is further provided with a reinforcing rib 4. The strengthening rib 4 sets up in the bottom of girder 1, and it is direct to be located dam roller hoisting accessory 2 and counter weight device 3, and the length, size and the shape of strengthening rib 4 do not influence dam roller hoisting accessory 2 and hoist dam roller 5, do not influence the removal or the setting of balancing weight 33 yet.
When the lifting appliance is changed to the interior dam roller of the rolling mill provided by the embodiment, the concrete operation is as follows:
firstly, hanging a crane hook on a first lifting lug 11, and moving a rolling mill inner dam roller to change a lifting appliance to a working position through a crane; then, an old dam roller to be replaced is installed on the connecting mechanism 22 and detached, meanwhile, the length of the lifting mechanism 21 and the position of the load-carrying piece 32 are adjusted according to the calculation result, the calculation formula is that the product of the weight of the old dam roller and the distance from the first lifting lug 11 to the installation part 12 is equal to the product of the weight of the balancing weight 33 and the distance from the first lifting lug 11 to the load-carrying piece 32, namely the product of the resistance arm and the resistance is equal to the product of the power arm and the power; and finally, operating the crown block to lift and remove the old dam roller by the dam roller replacing hanger in the rolling mill. In the same way and in the opposite steps, the new dam roller is hoisted and moved to the installation position, the new dam roller is detached from the connecting mechanism 22 after installation, the crane moves away the hanger for replacing the dam roller in the rolling mill, and the dam roller replacement is completed.
Through the embodiment, the utility model has the following beneficial effects or advantages:
the lifting appliance for replacing the dam roller in the rolling mill is simple to operate and convenient to use, can penetrate into the rolling mill through the main beam and directly reaches a working position, and is convenient to connect, install and detach the dam roller; the dam roller hoisting device is connected with the dam roller, so that the dam roller cannot rotate or fall off in the moving process, the safety of operators is ensured, the difficulty in replacing the dam roller is reduced, and the precision of installing a new dam roller is improved; the arrangement of the counterweight device enables the moving process of the dam roller to be more balanced and stable, and the counterweight device can be adjusted to replace the dam roller with different models by using the same rolling mill, so that the replacement cost is reduced.
While the preferred embodiments of the present application 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. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a hoist is changed to dam roller in rolling mill which characterized in that: including girder, dam roller hoisting accessory and counter weight device, wherein:
the middle part of the main beam is provided with a hanging point for hooking a lifting hook of a crown block, the dam roller lifting device and the counterweight device are both arranged on the main beam, and the dam roller lifting device and the counterweight device are respectively positioned at two sides of the hanging point;
the dam roller hoisting device comprises a hoisting mechanism and a connecting mechanism for connecting and installing the dam roller, and the connecting mechanism is installed on the main beam through the hoisting mechanism;
the counterweight device comprises a counterweight block, a transverse moving mechanism and a load-carrying piece, wherein the transverse moving mechanism is arranged on the main beam, the load-carrying piece is in sliding fit with the main beam through the transverse moving mechanism, and the counterweight block is arranged on the load-carrying piece.
2. The rolling mill internal dam roll replacement hanger of claim 1, wherein: the one end of girder is provided with the installation department, the mechanism that lifts by crane is installed on the installation department.
3. The rolling mill internal dam roll replacement hanger of claim 2, wherein: two second lifting lugs are arranged on the mounting part, the lifting mechanism is a steel wire rope, and the steel wire rope is connected to the two second lifting lugs; the connecting mechanism is a steel wire rope which is bound and connected with the dam roller; or the connecting mechanism is a plurality of fixed claws used for grabbing and installing the dam roller.
4. The rolling mill internal dam roll replacement hanger of claim 2, wherein: the hoisting mechanism is a group of hoisting mechanisms, the connecting mechanism comprises a plurality of fixing claws used for grabbing and installing the dam roller, and the fixing claws are connected to the hoisting mechanisms.
5. The rolling mill internal dam roll replacement hanger of claim 1, wherein: the main beam is of an I-shaped steel structure, and sliding grooves are formed in two sides of the I-shaped steel structure respectively; the top end of the load-carrying part is provided with pulleys in sliding fit with the sliding grooves, and the bottom end of the load-carrying part is provided with the balancing weight.
6. The rolling mill internal dam roll replacement hanger of claim 5, wherein: the transverse moving mechanism comprises a lead screw, a nut matched with the lead screw, a lead screw base and a handle, the lead screw base is arranged at one end of the main beam, the lead screw is in running fit with the lead screw base, the lead screw is arranged along the axial direction of the main beam, the handle is fixedly connected with one end of the lead screw, the load-carrying piece is sleeved on the nut, and the load-carrying piece is located between the hanging point and the handle.
7. The rolling mill internal dam roll replacement hanger of claim 6, wherein: the end part of the main beam is provided with a thrust block, the lead screw penetrates through the thrust block, and the thrust block is positioned between the load part and the handle.
8. The rolling mill internal dam roll replacement hanger according to any one of claims 1 to 7, wherein: the hanging point is a first lifting lug arranged on the main cross beam.
9. The rolling mill internal dam roll replacement hanger according to any one of claims 1 to 7, wherein: the upper part of the load-bearing part is connected with the main beam or the transverse moving mechanism in a sliding way, and the lower part of the load-bearing part is used for connecting the balancing weight; the balancing weight is provided with more than two.
10. The rolling mill internal dam roll replacement hanger according to any one of claims 1 to 7, wherein: and reinforcing ribs are arranged on the main beam and are positioned between the dam roller hoisting device and the counterweight device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220150994.5U CN216971712U (en) | 2022-01-20 | 2022-01-20 | Lifting appliance for replacing dam roller in rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220150994.5U CN216971712U (en) | 2022-01-20 | 2022-01-20 | Lifting appliance for replacing dam roller in rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216971712U true CN216971712U (en) | 2022-07-15 |
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ID=82351972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220150994.5U Active CN216971712U (en) | 2022-01-20 | 2022-01-20 | Lifting appliance for replacing dam roller in rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216971712U (en) |
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2022
- 2022-01-20 CN CN202220150994.5U patent/CN216971712U/en active Active
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