CN209811223U

CN209811223U - Bale revolving platform demolishs balancing stand

Info

Publication number: CN209811223U
Application number: CN201920355957.6U
Authority: CN
Inventors: 杨正武; 郑君; 董宏明
Original assignee: Maanshan Iron and Steel Co Ltd
Current assignee: Maanshan Iron and Steel Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2019-12-20
Anticipated expiration: 2029-03-20

Abstract

The utility model discloses a bale revolving platform demolishs balancing stand, its characterized in that: the balance frame is arranged on the portal frame and comprises profile steel rails which are arranged in parallel at intervals, a moving trolley which can move along the profile steel rails is arranged on the profile steel rails, and a rotating hoisting point is arranged on the moving trolley; a hoisting crane is arranged above the bale rotary table, and the balance frame is arranged below the hoisting crane. The utility model discloses simple structure can assist the driving and carry out bale revolving platform protectiveness and demolish, and the bale revolving platform that improves demolising efficiency demolishs the balancing stand and has stronger practicality and better application prospect.

Description

Bale revolving platform demolishs balancing stand

Technical Field

The utility model belongs to the technical field of the tooling equipment, more specifically say, relate to a bale revolving platform demolishs balancing stand.

Background

The ladle turret is used for carrying and supporting ladles, two ladles can be simultaneously placed on two rotating arms of the ladle turret, one ladle is used for casting, and the other ladle is in a to-be-cast state, so that continuous steel casting operation is realized. Under the normal working condition, the welding workpieces such as the rotating arm, the gantry and the rotating platform of the ladle turret are less in impact load and running abrasion, and the design safety margin is large, so that the faults are few. And the part of the welding workpiece has extremely high purchase cost due to complex structure, large volume and weight, high heat treatment difficulty, high processing technology requirement and the like, and has continuous use value if the detection performance is qualified. The ladle turret is generally arranged between the column lines of the molten steel receiving bay and the pouring bay, under the normal condition, the whole ladle turret is rarely overhauled and replaced, but the casting machine is gradually upgraded along with the continuous improvement of the variety and the quality of casting blanks, but the ladle turret can be continuously used as equipment with stronger universality. It is therefore important how to achieve protective removal of the equipment to ensure that the equipment is not accidentally damaged.

Because the bale rotary table is arranged between the molten steel receiving span and the pouring span column lines, no matter the 200t traveling crane of the molten steel receiving span or the pouring span 80t traveling crane is too large in lifting position deflection, the hoisting operation cannot be carried out, if the traveling crane is inclined, not only can the lifted part be not easily controlled, but also the lifted part is easy to collide, hit, damage and use, and safety accidents such as friction fracture of a traveling crane steel wire rope and a factory building beam are more easily caused. If the truck crane is adopted for matching operation, the total weight of the ladle turret is more than 200 tons, the components are dozens of tons, and the light-ton truck crane cannot be used for hoisting operation; and the 200t heavy-tonnage truck crane can not work on the platform due to the insufficient bearing design capability of the continuous casting platform.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that prior art exists, provide a simple structure, can assist the driving to carry out bale revolving platform protectiveness and demolish, improve the bale revolving platform who demolishs efficiency and demolish the balancing stand.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the bale rotary table dismantling balancing stand is characterized in that: the balance frame is arranged on the portal frame and comprises profile steel rails which are arranged in parallel at intervals, a moving trolley which can move along the profile steel rails is arranged on the profile steel rails, and a rotating hoisting point is arranged on the moving trolley; a hoisting crane is arranged above the bale rotary table, and the balance frame is arranged below the hoisting crane.

In order to make the above technical solution more detailed and concrete, the present invention further provides the following preferable technical solution to obtain satisfactory practical effect:

the movable trolley comprises movable rollers which are respectively arranged on the profile steel rails on the two sides, and the movable rollers are connected through roller shafts.

The rotary hoisting point is rotatably sleeved on the roller shaft.

The profile steel tracks are symmetrically arranged on two sides of the portal frame, and the profile steel tracks on the two sides are provided with a moving trolley.

The section steel tracks are H-shaped steel and are connected through cross rods.

And a plurality of connecting cross rods arranged at intervals are arranged in the length direction of the profile steel track.

And reinforcing plates are arranged at the end head and the side edge of the middle part of the balancing stand.

And limiting plates for limiting the moving positions of the two sides of the movable trolley are arranged at the two ends of the balance frame.

Compared with the prior art, the utility model, have following advantage: the utility model discloses, simple structure, the driving can be assisted and bale revolving platform protectiveness is demolishd, and the bale revolving platform that improves demolishs efficiency demolishs the balancing stand, has stronger practicality and better application prospect.

Drawings

The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:

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

FIG. 2 is a schematic structural view of a bale rotary table dismantling balance frame of the utility model;

FIG. 3 is a schematic structural view of the movable trolley on the balance frame of the present invention;

FIG. 4 is a schematic view of a dismounting structure of a lifting oil cylinder of a bale rotary table;

FIG. 5 is a schematic view of a bale turntable boom dismantling structure;

fig. 6 is a schematic view of a dismounting structure of a gantry of a bale rotary table.

Labeled as: 1. big package revolving platform, 2, first driving, 3, second driving, 4, ladle capping device, 5, lift cylinder, 6, ladle support, 7, rocking arm, 8, portal, 9, revolving stage, 10, gyration support, 11, base, 12, balancing stand, 13, shaped steel track, 14, reinforcing plate, 15, travelling car, 16, movable roller, 17, rotation hoisting point, 18, chain block.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

The utility model discloses a bale rotary table demolishs the gimbal, as shown in fig. 2, 3, 4, 5, 6, the gimbal 12 is located on the portal 8, including the parallel interval arrangement's shaped steel track 13, is equipped with the travelling car 15 that can move along it on the shaped steel track 13, is equipped with the rotation hoisting point 17 on the travelling car 15; a hoisting crane is arranged above the bale rotary table 1, and a balance frame is arranged below the hoisting crane.

In the utility model, as shown in fig. 3, the movable trolley 15 comprises movable rollers 16 respectively arranged on the profile steel rails 13 on both sides, and the movable rollers 16 are connected through roller shafts. The rotary lifting point 17 is rotatably sleeved on the roller shaft, the rotary lifting point 17 can be used for matching with a chain block to lift a dismantling part on the bale revolving platform according to requirements, or the rotary lifting point is used as a lifting point, and a lifting crane above the rotary lifting point 17 is hooked on the rotary lifting point 17, so that the bale revolving platform 1 is convenient to dismantle.

The utility model discloses in, shaped steel track 13 all is equipped with a travelling car 15 on the shaped steel track 13 of both sides at the 8 bilateral symmetry arrangements of portal. As shown in figure 1, the hoisting travelling crane comprises a first travelling crane 2 and a second travelling crane 3 which are arranged on two sides and are respectively used for a molten steel receiving span and a pouring span, the first travelling crane 2 and the second travelling crane 3 are arranged at a larger interval, the hoisting position is inclined greatly, and a balance frame 12 is arranged below the first travelling crane 2 and the second travelling crane 3 and is used for transition in the dismounting process, so that the dismounting requirement is better met.

In the utility model, as shown in fig. 3, the steel rails 13 are H-shaped steel, and the steel rails 13 arranged at intervals are connected by a cross rod. The steel rail 13 is provided with a plurality of connecting cross rods arranged at intervals in the length direction, and the connecting cross rods are welded or screwed. The ends and sides of the middle portion of the gimbal 12 are provided with reinforcing plates 14 to increase the structural strength thereof. Limiting plates for limiting the moving positions of the two sides of the moving trolley are arranged at the two ends of the balancing stand 12 so as to limit the moving positions of the moving trolley towards the two sides.

The total weight of the bale rotary table 1 is 218.8T, the bearing capacity of a continuous casting cross platform is considered, the bale rotary table is disassembled for protective dismantling, and the dismantling process is preferably carried out according to the following sequence: the ladle capping device 4 is disassembled → the lift cylinder 5 is disassembled → the ladle support 6 is disassembled → the rotating arm 7 is disassembled → the gantry 8 is disassembled → the turntable 9 is disassembled → the slewing support 10 is disassembled → the base plate 11 is disassembled.

As shown in fig. 1, the bale has a radius of gyration of about 5.5 meters. Some parts of the bale rotary table have a hoisting distance of more than 3 meters with the limit of the receiving span of the first traveling crane 2 and the second traveling crane 3. At the positions of the steel ladle capping device 4, the steel ladle support 6 and the like, the travelling crane can complete the dismantling by matching with the chain block due to light weight. However, the lifting oil cylinder 5, the rotating arm 7 and the gantry 8 cannot be directly dismantled by the crane due to the long lifting distance and heavy weight of the crane.

As shown in figure 2, a balance frame 12 with a movable lifting point is designed and formed by welding two H-shaped steels in a splicing manner, the end and the middle of the balance frame 12 are welded and reinforced by steel plates 14, working areas are arranged on two sides of the balance frame 12, so that a movable trolley 15 can move conveniently, the movable trolley 15 can be hoisted according to different parts, the hoisting gravity center is not inclined, and the hoisting is stable, safe and free of collision.

As shown in fig. 3, the movable trolley 15 on the balance frame is composed of movable rollers 16, roller shafts and rotary hoisting points 17 arranged on the roller shafts, the movable trolley 15 can move easily according to hoisting positions, the rotary hoisting points 17 can rotate around the movable trolley 16 to be used as hoisting points, and can rotate 180 degrees to be used as hoisting points.

As shown in fig. 4, after the steel ladle capping device is removed by the travelling crane and the chain block, the balance frame 12 is fixed at the upper beam of the portal frame 8 by welding or bolt connection, etc., so as to ensure the balance of the positions of the two sides of the balance frame 12. Detaching the connecting bolts of the lifting oil cylinder 5, the gantry 8 and the rotating arm 7, enabling the two side travelling trolleys 15 to be close to the inner side of the balance frame 12 and close to the lifting oil cylinder 5, simultaneously hoisting the lifting oil cylinder 5 by using two chain blocks 18, leaving the rotary table 9, loosening the chain block 18 on one side and the travelling trolleys 15, and pulling the travelling trolleys 15 suspending the lifting oil cylinder 5 by using hemp ropes or winches, so that the lifting oil cylinder 5 can be easily moved to the outer side of the balance frame 12, and the second travelling crane 3 can be conveniently transported to an idle position;

as shown in fig. 5, the swivel arm 7 is an important part of a bale turntable, the weight of which is 25t, and the center of gravity is not well defined. The second traveling crane 3 and the balance frame 12 are adopted for matched lifting, the end part of the rotating arm 7 is firstly tightened by the second traveling crane 3, the movable trolley 15 is moved to the inner side of the balance frame 12, the tail part of the rotating arm 7 is pulled up by the chain block to lift the rotary table 9, the traveling crane and the chain block 18 are operated to enable the rotating arm 7 to be in a balance position, the trolley mechanism of the second traveling crane 3 is operated to drive the movable trolley 15 to move to the outer side of the balance beam 12, the rotating arm 7 is stably moved out under the control of two lifting points, is placed in a lifting position of the second traveling crane 3, and is bound again to enable the lifting point to be moved to;

as shown in fig. 6, the hoisting position of the gantry 8 is far away from the hoisting positions of the two traveling cranes, and the hoisting space is very small. If the hook head is used for directly lifting, the steel wire rope can rub against a house beam, and safety accidents such as steel wire rope breakage and the like are caused. The movable trolleys 15 on the two sides of the balance frame 12 can be moved to the outer side, the lifting point 17 is rotated, the movable trolleys 15 on the two sides are respectively hung up by the first travelling crane 2 and the second travelling crane 3, and the gantry 8 can be separated from the rotary table 9 by simultaneously lifting, and then the two travelling cranes are simultaneously operated and translated to a proper idle position;

this remove hoisting point formula balancing stand through the removal of hoisting point, can easily find the center of gravity of lifting by crane to the travelling car is steady removes the part. Meanwhile, the lifting point is changed into a hanging point by the rotation of the lifting point, three lifting difficulties of the lifting oil cylinder 5, the rotating arm 7 and the gantry 8 can be easily solved by one position, and the safety and the rapidness of protective dismantling are effectively ensured.

In order to ensure that the positions of all parts of the bale rotary table can be adjusted at any time in the dismantling process, the bale transmission device cannot be dismantled in a power-off mode, the rotating function is kept until the dismantling is finished, and finally the transmission device is dismantled.

The steel ladle capping device is detached by utilizing the cooperation of a two-span travelling crane and a chain block or utilizing a crane. The capping device is rotated to the side of the travelling crane span, so that the rope can be conveniently tied and hung. The center position of a steel ladle cover is locked by a steel wire rope and a shackle in a matching way of a travelling crane, then a simple portal frame is arranged on a maintenance platform of a capping device, a chain block is used for cooperatively hoisting an arm and a rotary drum at the tail part, a bolt is dismounted, a pin shaft at the head part of an oil cylinder is rotated, the chain block is lifted to separate an upper bearing and a lower bearing of the rotary drum, and the whole capping device is lifted and lifted away after being dismounted in a matching way of the travelling crane and the block.

After the capping device is disassembled, the space of the upper beam of the portal frame is used as a fixed position of the movable hoisting point balance frame, and is directly welded and fixed or is fixedly connected with the capping rotating base through a bolt, so that the balance is ensured to be in the central position of the upper beam of the portal frame and vertical to the upper beam of the portal frame, and the positions of two sides are equal, and then the three hoisting difficulties of the lifting oil cylinder, the bale rotating arm and the portal frame can be disassembled;

the hoisting position of the rotary table is closer to the hoisting position of the travelling crane than a lifting oil cylinder, a portal frame and the like, the ascending space of the hook head is also enlarged due to the reduction of the height, the hook head can be directly hoisted by the travelling crane of 200t and 80t at the same time, the travelling crane cart is operated at the same time, the travelling crane is translated to a pre-laid platform and then is transported to an idle position by 80 t; the power supply and the pneumatic pipeline of the rotating mechanism are dismantled, and the self weights of the rotary supporting device, the bale rotating device and the base are relatively light and are close to the ground, so that the ladle turret protective dismantling device can be directly dismantled and hoisted by using a pouring platform on a 100t truck crane, and the protective dismantling work of the bale turret is smoothly completed.

Compared with the prior removal mode, the utility model has the advantages that can carry out the adjustment of hoisting point according to the different parts of bale revolving platform, the balancing stand can make the removal hoisting point advance to removing as the slip guide slot moreover, to rocking arm, lift cylinder, the three weight of portal big, the part that the hoisting point skew angle is big can realize that the focus lifts by crane, lateral shifting's maintenance target, the insecurity of the in-process of demolising that significantly reduces. Meanwhile, the movable lifting point can rotate 360 degrees, can be used as a hanging point for carrying out lifting operation, can also be used as a lifting point for carrying out lifting operation, and has wide operation range and strong applicability.

From the implementation situation, the operation efficiency is greatly improved, the violation behaviors of inclined pulling and inclined hoisting of the travelling crane are reduced to the maximum extent in the process of dismantling and hoisting, the safety accident that the steel wire rope is cut and rubbed and broken is avoided, meanwhile, the components of the bale rotary table are stable and free of collision in the process of dismantling, and the protective dismantling of equipment is completely realized.

In order to solve the problems, the utility model can adjust the position of the lifting point according to the lifting points of different heavy objects by the design of the movable lifting point bracket, and extend the position of the lifting point into each span from between the receiving span and the pouring span column, thereby facilitating the lifting and transporting; meanwhile, the movable hoisting point support can be used as a guide slideway and matched with driving safety to stably pull and move the heavy object, so that the hoisting operation is safe and reliable. Two portable hoisting points on this support possess two directions hoist and mount operations, can regard as the hanging point operation when hoist and mount rocking arm, and can regard as the hoisting point operation during the hoist and mount portal, effectively solve the hoist and mount characteristics of different structural component in the bale revolving platform, make dismouting process safety effective, the steady not damaged is demolishd to the part. And the target requirement of protective dismantling is realized.

The utility model discloses simple structure can assist the driving and carry out bale revolving platform protectiveness and demolish, and the bale revolving platform that improves demolising efficiency demolishs the balancing stand and has stronger practicality and better application prospect.

The present invention has been described above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and various insubstantial improvements or direct applications to other applications can be achieved by using the method and technical solution of the present invention, which all fall within the protection scope of the present invention.

Claims

1. The utility model provides a big package revolving platform demolishs balancing stand which characterized in that: the balance frame is arranged on the portal frame and comprises profile steel rails which are arranged in parallel at intervals, a moving trolley which can move along the profile steel rails is arranged on the profile steel rails, and a rotating hoisting point is arranged on the moving trolley; a hoisting crane is arranged above the bale rotary table, and the balance frame is arranged below the hoisting crane.

2. The bale turret dismantling counterweight as set forth in claim 1, wherein: the movable trolley comprises movable rollers which are respectively arranged on the profile steel rails on the two sides, and the movable rollers are connected through roller shafts.

3. The bale turret dismantling counterweight as set forth in claim 2, wherein: the rotary hoisting point is rotatably sleeved on the roller shaft.

4. The bale turret dismantling counterweight as set forth in claim 1, wherein: the profile steel tracks are symmetrically arranged on two sides of the portal frame, and the profile steel tracks on the two sides are provided with a moving trolley.

5. The bale turret dismantling counterweight as set forth in claim 1, wherein: the section steel tracks are H-shaped steel and are connected through cross rods.

6. The bale turret dismantling counterweight as claimed in claim 5, wherein: and a plurality of connecting cross rods arranged at intervals are arranged in the length direction of the profile steel track.

7. The bale turret dismantling counterweight as set forth in claim 1, wherein: and reinforcing plates are arranged at the end head and the side edge of the middle part of the balancing stand.

8. The bale turret dismantling counterweight as claimed in claim 7, wherein: and limiting plates for limiting the moving positions of the two sides of the movable trolley are arranged at the two ends of the balance frame.