CN218560840U

CN218560840U - Lifting appliance for dismounting large-scale rolling mill housing

Info

Publication number: CN218560840U
Application number: CN202222230912.0U
Authority: CN
Inventors: 陈伟震; 王一峰; 刘金堂; 甘明贤; 孙蕾
Original assignee: Handan Iron and Steel Group Co Ltd; HBIS Co Ltd Handan Branch
Current assignee: Handan Iron and Steel Group Co Ltd; HBIS Co Ltd Handan Branch
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-03-03
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to a hoist of large-scale rolling mill memorial archway of dismouting belongs to the hoisting of metallurgical industry cut deal mill memorial archway and dismantles technical field. The technical scheme is as follows: the crane hook comprises a cross beam (1), hanging plates (2), a pin shaft (3) and a combined corner protector hoist (4), wherein a plurality of hanging plates (2) are respectively arranged at two ends of the cross beam (1), the lower ends of the hanging plates (2) are rotatably connected with the cross beam (1) through the pin shaft (3), and the upper ends of the hanging plates (2) are matched with a crane hook; the combined type angle bead hoisting device (4) comprises two supporting plates (7) and a plurality of connecting shafts (8), the supporting plates (7) are of U-shaped structures matched with the cross beam (1), the two supporting plates (7) are connected together through the plurality of connecting shafts (8) to form the combined type angle bead hoisting device (4), and the two sets of combined type angle bead hoisting devices (4) are respectively hung on the cross beam (1). The utility model discloses can be safe, quick completion large-scale rolling mill memorial archway's installation or dismantlement task.

Description

Lifting appliance for dismounting large-scale rolling mill housing

Technical Field

The utility model relates to a hoist of large-scale rolling mill memorial archway of dismouting belongs to the hoisting of metallurgical industry cut deal mill memorial archway and dismantles technical field.

Background

In the production process of medium and heavy plates, a heavy rolling mill frame structure is mostly an integrally cast housing, for the integrally cast housing which needs to bear more than 2000 tons of load, the size of a single housing exceeds 10 meters, the width exceeds 4 meters, the integral weight exceeds 100 tons, the weight of some housings reaches more than 300 tons, a user does not have the capacity of supporting a single crown block to lift the housing, or other equipment is firstly erected in the installation process and then installed, and no consideration factors such as space exist, so that the best effect is achieved in the aspects of integral investment, use, maintenance and the like. At present, in order to save investment and accelerate project development progress, a plurality of steel mills adopt a waste repairing and utilizing mode, and need to finish the disassembly and the installation of a rolling mill housing under the condition of a plant with limited space, but because the dead weight of the rolling mill housing is larger, the capacity of a single overhead crane on site can not meet the requirements of independent hoisting equipment and the reasons that the equipment hoisting is limited by the plant space, and the like, the difficult situation is caused for the disassembly and the re-installation of the rolling mill housing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hoist of large-scale rolling mill memorial archway of dismouting, the problem that exists among the solution background can be safely, quick installation or the dismantlement task of accomplishing large-scale rolling mill memorial archway.

The technical scheme of the utility model is that:

a lifting appliance for dismounting a large mill housing comprises a cross beam, lifting plates, a pin shaft and a combined type angle bead lifting device, wherein a plurality of lifting plates are respectively arranged at two ends of the cross beam, the lower ends of the lifting plates are rotatably connected with the cross beam through the pin shaft, and the upper ends of the lifting plates are matched with a lifting hook of a crown block; the combined type angle bead hoisting device comprises two supporting plates and a plurality of connecting shafts, the supporting plates are of U-shaped structures matched with the cross beam, the two supporting plates are connected together through the plurality of connecting shafts to form the combined type angle bead hoisting device, and the two sets of combined type angle bead hoisting devices are respectively hung on the cross beam.

And at least six connecting shafts in the combined corner protector hoisting process are provided, and two ends of each connecting shaft are fixed by virtue of washers and nuts.

And a positioning bolt matched with the cross beam is arranged on the supporting plate in the combined corner protector hoisting process.

The beam is a box-shaped structure formed by combining an upper top plate, a lower wing plate and two side webs, a plurality of inner partition plates are arranged in the beam, and pin shaft seat holes matched with the pin shafts are formed in the webs.

The beneficial effects of the utility model are that: the utility model discloses can be safe, quick, conveniently accomplish the installation of rolling mill memorial archway or dismantle the task, satisfy equipment dismantlement, installation accuracy and operation requirement, improve labor efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the rolling mill housing of the present invention;

FIG. 3 is a schematic view of the rolling mill housing of the present invention laid down or lifted;

FIG. 4 is a front view of the slope platform of the present invention;

fig. 5 is a side view of the slope platform of the present invention;

fig. 6 is a schematic view of a cross beam of the present invention;

FIG. 7 is a front view of the hanger plate of the present invention;

FIG. 8 is a top view of the hanger plate of the present invention;

FIG. 9 is a schematic view of the hinge pin of the present invention;

fig. 10 is a front view of the combined corner protection sling of the present invention;

fig. 11 is a side view of the combined corner protector spreader of the present invention;

fig. 12 is a top view of the combined corner protector spreader of the present invention;

in the figure: 1. the device comprises a cross beam, 2, a hanging plate, 3, a pin shaft, 4, a combined type angle bead hoisting device, 5, a platform with a slope, 6, a sleeper, 7, a U-shaped plate, 8, a connecting bolt, 9, a crown block T-shaped hook, 10 and a rolling mill housing.

Detailed Description

The invention will be further described by way of example with reference to the accompanying drawings.

Referring to the attached drawings 1-12, the lifting appliance for dismounting and mounting the large mill housing comprises a beam 1, lifting plates 2, a pin shaft 3 and a combined corner guard lifting device 4, wherein a plurality of lifting plates 2 are respectively arranged at two ends of the beam 1, the lower ends of the lifting plates 2 are rotatably connected with the beam 1 through the pin shaft 3, and the upper ends of the lifting plates 2 are matched with a crane lifting hook; the combined type angle bead hoisting device 4 comprises two supporting plates 7 and a plurality of connecting shafts 8, the supporting plates 7 are of U-shaped structures matched with the cross beam 1, the two supporting plates 7 are connected together through the plurality of connecting shafts 8 to form the combined type angle bead hoisting device 4, and the two sets of combined type angle bead hoisting devices 4 are respectively hoisted on the cross beam 1.

In this embodiment, referring to fig. 1-12, the beam 1 is a box-type steel structure, and includes 1 upper top plate, 1 lower wing plate, 2 webs at two sides, a plurality of middle internal partition plates, and 4 pin seat holes on the webs.

The hanger plate 2 is total 8, and four are a set of, set up respectively at the both ends of crossbeam 1, and every has two round pin axle support holes, and round pin axle 3 is total 8, and one end has the stopper end, and the terminal surface has two fixed screw holes, is used for the fixed pin axle baffle, prevents that the round pin axle from droing, and the other end is the flush end. The lower end of the hanging plate 2 is connected with the cross beam 1 through a pin shaft 3, the upper end of the hanging plate 2 is connected through a pin shaft 3, and a T-shaped lifting hook 9 of the crown block is hooked on the pin shaft 3 at the upper end of the hanging plate 2.

The combined type angle bead hoisting devices 4 are fixed on the cross beam 1 in a hanging mode respectively, can move along the cross beam 1, and the distance between the two combined type angle bead hoisting devices 4 can be adjusted. Each set of combined corner protector hoisting device 4 is provided with two supporting plates 7, and the two supporting plates 7 are positioned on the cross beam 1 by bolts to prevent the two supporting plates from moving randomly; at least six connecting shafts 8 are arranged between the two supporting plates 7, and two ends of each connecting shaft 8 are fixed by the aid of the brake washers and the nuts.

The assembly also comprises a platform 5 with a slope, as shown in the attached figures 4 and 5, the left half part of the platform 5 with the slope is the slope, the right half part is the platform, and a sleeper 6 matched with the mill housing is arranged on the platform.

The hoisting construction method comprises the following steps:

step 1: according to the figures 4 and 5, two groups of slope platforms 5 are manufactured, the height of the slope platforms is not less than 300mm, the slope platforms are firmly fixed, and sleepers 6 are arranged on the slope platforms;

step 2: assembling the beam 1, the hanging plate 2 and the pin shaft 3 together;

and step 3: and slowly lowering two crown block T-shaped hooks 9 above the lifting appliance, and hanging the pin shaft 3 at the upper end of the hanging plate 2 on the crown block T-shaped hooks 9.

And 4, step 4: two sets of combined corner protectors 4 are hung and fixed on the beam 1 and can move along the combined beam;

and 5: the steel wire rope is provided with a lock catch and is lapped on the combined type angle bead hoisting 4, the positions of the two sets of combined type angle bead hoisting 4 are adjusted to be suitable for the hoisting position of the steel wire rope, and the steel wire rope is positioned by a positioning bolt;

step 6: the steel wire rope is put at the hoisting position of the mill housing, the lock catch is locked, two crown block trolleys are hoisted simultaneously, and the newly transported mill housing is translated to a sleeper 6 with a slope platform 5 which is preset;

and 7: the two crown block trolleys are synchronously and slowly hooked in parallel, so that the top of the mill housing is slowly lifted, the bottom of the mill housing is put on a slope of the platform, the crown block trolleys are slowly moved and the cross beam 1 is lifted until the mill housing is completely erected and separated from the ground, and then the mill housing is seated in the base mounting position.

The disassembly construction method comprises the following steps:

step 1: according to the figures 4 and 5, two groups of slope platforms 5 are manufactured, the height is not less than 300mm, the slope platforms are firmly fixed, and sleepers 6 are laid on the slope platforms;

and step 3: and slowly lowering the two crown block T-shaped hooks 9 above the lifting appliance, and hanging the pin shaft 3 at the upper end of the lifting plate 2 on the crown block T-shaped hooks 9.

And 4, step 4: two sets of combined angle bead hoists 4 are hung and fixed on the cross beam 1 and can move along the combined cross beam;

and 5: the steel wire rope is provided with a lock catch and is put on the combined type angle bead hoisting device 4, the positions of the two sets of combined type angle bead hoisting devices 4 are adjusted to be suitable for the hoisting position of the steel wire rope, and the steel wire rope is positioned by a positioning bolt;

and 6: cutting the memorial archways to fix foundation bolts, and loosening the adhesion between the memorial archways and the base by using a jack;

and 7: building a steel wire rope at the hoisting position of the memorial archway, locking a lock catch, synchronously and slowly hooking two crown block trolleys in parallel, slowly lifting the top of the memorial archway till the top of the memorial archway is completely separated from the ground, and horizontally moving the disassembled memorial archway to a preset platform with a slope;

and 8: and moving the crown block, putting the bottom of the memorial archway on the slope of the platform, slowly moving the crown block trolley and descending the cross beam along the slope direction until the memorial archway is completely erected on the sleeper of the platform, and then horizontally moving the memorial archway to the transport vehicle.

Claims

1. The utility model provides a hoist of large-scale rolling mill memorial archway of dismouting which characterized in that: the crane hook comprises a cross beam (1), hanging plates (2), a pin shaft (3) and a combined corner protector hoist (4), wherein a plurality of hanging plates (2) are respectively arranged at two ends of the cross beam (1), the lower ends of the hanging plates (2) are rotatably connected with the cross beam (1) through the pin shaft (3), and the upper ends of the hanging plates (2) are matched with a crane hook; the combined type angle bead hoisting device (4) comprises two supporting plates (7) and a plurality of connecting shafts (8), the supporting plates (7) are of U-shaped structures matched with the cross beam (1), the two supporting plates (7) are connected together through the plurality of connecting shafts (8) to form the combined type angle bead hoisting device (4), and the two combined type angle bead hoisting devices (4) are respectively hoisted on the cross beam (1).

2. The lifting appliance for dismounting large-scale rolling mill housing according to claim 1, wherein: and at least six connecting shafts (8) in the combined corner protector hoisting (4) are provided, and two ends of each connecting shaft (8) are fixed by virtue of gaskets and nuts.

3. The lifting appliance for dismounting large-scale rolling mill housing according to claim 1 or 2, wherein: and a positioning bolt matched with the cross beam (1) is arranged on a supporting plate (7) in the combined corner protector hoisting (4).

4. The lifting appliance for dismounting large-scale rolling mill housing according to claim 1, wherein: the beam (1) is a box-shaped structure formed by combining an upper top plate, a lower wing plate and two side webs, a plurality of inner partition plates are arranged inside the box-shaped structure, and pin shaft seat holes matched with the pin shafts (3) are formed in the webs.