CN219683576U - Trolley for dismounting and mounting working roll balance block of hot continuous rolling mill - Google Patents
Trolley for dismounting and mounting working roll balance block of hot continuous rolling mill Download PDFInfo
- Publication number
- CN219683576U CN219683576U CN202320303628.3U CN202320303628U CN219683576U CN 219683576 U CN219683576 U CN 219683576U CN 202320303628 U CN202320303628 U CN 202320303628U CN 219683576 U CN219683576 U CN 219683576U
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- Prior art keywords
- roll
- trolley
- balancing piece
- balance block
- trolley body
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- 238000005096 rolling process Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims description 4
- 235000000396 iron Nutrition 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a trolley for dismounting and mounting a working roll balance block of a hot continuous rolling mill, which comprises a roll changing hydraulic cylinder and a roll changing track, wherein the roll changing hydraulic cylinder and the roll track are matched with the working roll for use when the working roll is replaced, the trolley further comprises a trolley body, steel wheels, U-shaped hook grooves, balance block anti-slip baffles and a balance block support frame, the trolley body is a rectangular thickened steel plate, two wheel shafts are fixed below the trolley body, two ends of each wheel shaft are connected with the steel wheels through bearings, rims are arranged on the inner sides of the steel wheels, the middle of the front section of the trolley body is provided with the U-shaped hook grooves, the middle position of the rear section of the trolley body is fixedly provided with the balance block support frame, and the two sides of the bottom of the balance block support frame, which are close to the edge positions of the trolley body, are symmetrically provided with the balance block anti-slip baffles. The utility model has simple structure and convenient installation and use, fully utilizes the existing equipment, reduces the labor intensity of personnel, improves the safety of the replacement of the balance weight, and improves the replacement efficiency of the balance weight.
Description
Technical Field
The utility model relates to the field of hot rolled coil production, in particular to a trolley for dismounting a working roll balance block of a hot continuous rolling mill.
Background
A hot continuous rolling mill is a rolling mill apparatus for producing hot rolled coils. Hot continuous rolling mills generally include: the device comprises a stepping continuous heating furnace, a high-pressure water descaling device, a four-roller reversible universal roughing mill with vertical rollers, flying shears, a finishing mill group consisting of four-roller mills arranged in series of 6 frames, a coiling machine, a laminar cooling device, finished product collecting equipment and various conveying roller ways.
The roughing mill working roll balance blocks of the hot tandem mill are symmetrically arranged on two sides of a mill housing, two driving sides and two operating sides, wherein the total weight of each block is about 1932kg, the top of the mill is in a closed state, once the balance blocks are damaged, maintenance is needed, generally, two new spare parts are purchased, the damaged balance blocks are replaced, the new spare parts are huge, the weight of each block is about 1932kg, meanwhile, the top of the mill is provided with a cover plate, and the crown block is in a closed state, so that the crown block cannot reach the position right above the balance blocks for hoisting operation. The original replacement mode is matched by multiple persons, at least two groups of guide chains are adopted to transfer the balance weight to the position where the crown block can be lifted, so that time and labor are wasted, and certain potential safety hazards exist.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a trolley for dismounting a working roll balance block of a hot continuous rolling mill.
The technical scheme adopted by the utility model is as follows: the utility model provides a hot tandem mill work roll balancing piece dismouting is with dolly, includes roll changing pneumatic cylinder, roll changing track, roll changing pneumatic cylinder and roll track are used with the work roll cooperation when changing the work roll, roll changing pneumatic cylinder piston rod tip is provided with the hook, roll changing track is two steel rails that set up subaerial, still includes dolly body, steel wheel, U type hook groove, balancing piece antiskid baffle, balancing piece support frame, the dolly body is rectangle thickening steel sheet, dolly body below is fixed with two shaft, the both ends of shaft are connected with the steel wheel through the bearing, the steel wheel inboard is provided with the rim, the steel wheel sets up on roll changing track, the rim is located two steel rail inboard of roll changing track, be provided with U type hook groove in the middle of the dolly body anterior segment, U type hook groove is formed by the steel sheet welding, U type hook groove cooperatees with the hook of roll changing pneumatic cylinder piston rod tip, dolly body back end intermediate position is fixed with balancing piece support frame, the edge symmetry that is provided with on the dolly body antiskid baffle is located to the balancing piece support frame bottom the balancing piece, the edge symmetry of balancing piece support frame is that the steel sheet is welded on the dolly body;
further, the balance block support frame comprises two support columns and support inclined planes, wherein the two support columns are fixed on the trolley body in a tandem mode, and the two support inclined planes made of steel plates are symmetrically welded on the two sides of the support columns through angle irons;
furthermore, a limiting plate is welded on the inner side of the U-shaped hook groove.
According to the utility model, the original roll changing hydraulic cylinder and the roll changing track are utilized, the roll changing hydraulic cylinder provides power for the trolley body, the roll changing guide rail assists the trolley to move, and the U-shaped hook groove is arranged to connect the roll changing hydraulic cylinder with the trolley body when the trolley body needs to be pulled, so that the roll changing hydraulic cylinder provides power for the trolley body, and compared with the original guide chain, the transfer efficiency is higher; the balance block anti-skid baffle and the balance block support frame can enable the balance block to be in an inclined state in the transferring process on the trolley body, so that the guide chain and the overhead travelling crane are convenient to hoist, and the balance block replacement efficiency is also improved. The original weight is replaced by a guide chain only, at least 8 hours are needed in one working day, and the time for replacing the weight is shortened to 2-3 hours after the trolley is adopted.
The utility model has simple structure and convenient installation and use, fully utilizes the existing equipment, reduces the labor intensity of personnel, improves the safety of the replacement of the balance weight, and improves the replacement efficiency of the balance weight.
Drawings
Fig. 1 is a schematic top view of the present utility model.
Fig. 2 is a schematic front view of the present utility model.
Fig. 3 is a left side view of the present utility model.
FIG. 4 is a schematic view of a U-shaped hook slot of the present utility model.
Fig. 5 is a schematic view of a steel wheel according to the present utility model.
In the figure: 1. the trolley comprises a trolley body, steel wheels, rims, 3.U type hook grooves, limiting plates, balancing block anti-slip baffles, balancing block supporting frames, supporting columns and supporting inclined planes.
Detailed Description
In order to make the technical solution of the present utility model more clearly understood, the present utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1-5, a trolley for dismounting a working roll balance block of a hot continuous rolling mill comprises a roll changing hydraulic cylinder and a roll changing track, wherein the roll changing hydraulic cylinder and the roll changing track are matched with the working roll to be used when the working roll is replaced, the end part of a piston rod of the roll changing hydraulic cylinder is provided with hooks, the roll changing track is two steel rails arranged on the ground, the trolley further comprises a trolley body 1, steel wheels 2, a U-shaped hook groove 3, a balance block anti-skid baffle 4 and a balance block support frame 5, the trolley body 1 is a rectangular thickened steel plate, two axles are fixed below the trolley body 1, two ends of each axle are connected with steel wheels 2 through bearings, the inner side of each steel wheel 2 is provided with a rim 21, the steel wheels 2 are erected on the roll changing track, the rims 21 are positioned on the inner sides of the two steel rails of the roll changing track, the rims 21 can play a limiting role and a guiding role, the middle of a front section of the trolley body 1 is provided with a U-shaped hook groove 3, the U-shaped hook groove 3 is formed by welding, the U-shaped hook groove 3 is matched with the end part of the balance block anti-skid baffle 4 on the trolley body, the two sides of the support frame 5 are welded with the two support frames 51, the two support frames are symmetrically arranged at two sides of the support frame 51, the side of the trolley body is provided with two support frames 51, and the two support frames are welded with two support frames 51, and the two support frames 51 are positioned at the two sides of the side of the support frame 51 are respectively, and the side of the support frame 51 are provided with the support frame 51, and the support frame 51 is provided with the support frame 51.
When the balance weight needs to be replaced, the trolley body 1 is placed on the roll changing track, the steel wheel 2 is arranged on the roll changing track, the rim 21 of the steel wheel 2 is positioned on the inner sides of the two steel rails of the roll changing track, the piston rod of the roll changing hydraulic cylinder props against the front end of the trolley body 1, the trolley body 1 is pushed to a designated position, a worker removes the balance weight, the balance weight is hung above the trolley body 1 by using a guide chain, the balance weight is obliquely erected between the balance weight anti-skid baffle 4 and the balance weight support frame 5, the bottom of the balance weight is obliquely propped against the inner side of the balance weight anti-skid baffle 4, one side of the upper part of the balance weight is obliquely leaned against the support inclined surface 52 of the balance weight support frame 5, then the hook of the piston rod of the roll changing hydraulic cylinder is hooked in the U-shaped hook groove 3, the roll changing hydraulic cylinder is started to pull the trolley body 1 to the position where the balance weight can be lifted by the crane, the balance weight is required to be replaced by the crane, the new balance weight is hung on the trolley body 1 by the crane, and the balance weight is transported to the designated position and then is installed by the worker by using the guide chain.
The utility model has simple structure and convenient installation and use, fully utilizes the existing equipment, reduces the labor intensity of personnel, improves the safety of the replacement of the balance weight, and improves the replacement efficiency of the balance weight.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (3)
1. The utility model provides a hot tandem mill work roll balancing piece dolly for dismouting, includes roll change pneumatic cylinder, roll change track, roll change pneumatic cylinder and roll track are used with the work roll cooperation when changing the work roll, roll change pneumatic cylinder piston rod tip is provided with the hook, roll change track is for setting up two subaerial rails, its characterized in that still includes dolly body, steel wheel, U type hook groove, balancing piece antiskid baffle, balancing piece support frame, the dolly body is rectangle thickening steel sheet, dolly body below is fixed with two shaft, the both ends of shaft are connected with the steel wheel through the bearing, the steel wheel inboard is provided with the rim, the steel wheel is set up on roll change track, the rim is located roll change orbital two steel rail inboards, be provided with U type hook groove in the middle of the dolly body anterior segment, U type hook groove is formed by the steel sheet welding, U type hook groove cooperatees with the hook of roll change pneumatic cylinder piston rod tip, dolly body back end intermediate position is fixed with balancing piece support frame, the balancing piece bottom is close to the balancing piece and is provided with the antiskid baffle on the side of the dolly body symmetrical position of balancing piece, the balancing piece bottom is the welding edge of balancing piece is the steel sheet on the dolly body.
2. The trolley for dismounting and mounting the working roll balance weight of the hot continuous rolling mill according to claim 1, wherein the balance weight supporting frame comprises two supporting columns and supporting inclined planes, the two supporting columns are fixed on the trolley body in a front-back mode, and the two supporting inclined planes made of steel plates are symmetrically welded on two sides of the supporting columns through angle irons.
3. The trolley for dismounting the working roll balance weight of the hot continuous rolling mill according to claim 1, wherein a limiting plate is welded on the inner side of the U-shaped hook groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303628.3U CN219683576U (en) | 2023-06-26 | 2023-06-26 | Trolley for dismounting and mounting working roll balance block of hot continuous rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320303628.3U CN219683576U (en) | 2023-06-26 | 2023-06-26 | Trolley for dismounting and mounting working roll balance block of hot continuous rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219683576U true CN219683576U (en) | 2023-09-15 |
Family
ID=87942134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320303628.3U Active CN219683576U (en) | 2023-06-26 | 2023-06-26 | Trolley for dismounting and mounting working roll balance block of hot continuous rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219683576U (en) |
-
2023
- 2023-06-26 CN CN202320303628.3U patent/CN219683576U/en active Active
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