Lever type sliding lifting appliance for replacing roller way in narrow space

Abstract

The utility model provides a lever type sliding lifting appliance for replacing a roller way in a narrow space, which comprises a bottom plate, a balancing weight is arranged above the bottom plate, a first side plate and a second side plate which are symmetrically arranged are arranged on two sides of the bottom plate, one side of the first side plate is connected with the bottom plate, a first guide plate is arranged on the other side of the first side plate, and a second guide plate is arranged on the other side of the second side plate. One side of the second side plate is connected with the bottom plate, a second guide plate is arranged on the other side of the second side plate, the first side plate is in a Z shape and comprises an obliquely-arranged connecting plate, a first transverse plate is arranged at one end of the connecting plate, a second transverse plate is arranged at the other end of the connecting plate, one end of the first transverse plate is connected with the connecting plate, and a lifting hole is formed in the other end of the first transverse plate. One end of the second transverse plate is connected with the connecting plate, and the other end of the second transverse plate is provided with an inclined protrusion. The inner cooling roller replacement device can guarantee smooth replacement of the inner cooling roller, reduces labor intensity of workers, reduces operation risks, and avoids accidents which affect production organization and are caused by uncertain replacement duration of the inner cooling roller.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment and relates to a lever-type sliding hanger used for replacing a roller table in a narrow space. Background Art

[0002] The carbon steel sheet production line is a production process that integrates steelmaking, continuous casting and hot rolling. The main equipment included in the hot rolling production process includes: heating furnace, continuous rolling unit, layer cold roller and laminar cooling, down coiler, strip coil transportation equipment, etc. Among them, the layer cold roller is divided into three types: inner cold roller, outer cold roller and no cold roller. It is the strip conveying equipment with the largest number of rollers and relatively complex geographical location on the hot rolling production line.

[0003] The internal cold rollers are mainly located under the walking platform behind the last continuous rolling mill. It is particularly difficult to replace the rollers at this location, especially the rollers located under the pneumatic pressure belt guard. The existing roller lifting point design has certain defects, that is, it is impossible to effectively lift the rollers completely to the suspended conveying plane, the working space for personnel is small, and the conveying link during the disassembly and assembly of the rollers is completely dependent on manpower. There is great resistance in the pushing and conveying, which often leads to delays and loss of control of the roller replacement time.

[0004] like Figure 4 As shown, the inner cooling rollers are mainly distributed below the walking bridge platform E, especially the first four rollers are located below the pneumatic belt pressure shield 8. When replacing the rollers here, it is necessary to install a set of hand-pushed carriages on the first fixed slide rail and the second fixed slide rail welded on the lower surface of the walking bridge platform E; when the inner cooling rollers are removed and lifted, they are limited by the height of the first fixed slide rail, the second fixed slide rail and the height of the pneumatic belt pressure shield and cannot reach the suspended height of the conveying plane. To pull the inner cooling rollers out of the walking bridge platform, they can only be pulled out by manpower.

[0005] Similarly, when the inner cold roller is reinstalled, it also needs to be pushed in manually before it can be reinstalled. Affected by the height of the conveying plane, the new roller must be reinstalled by pushing the hand-pushing carriage past the reinstallation position so that the inner cold roller can fall into the reinstallation position. At this time, the reinstallation position of the inner cold roller is a 7-meter-deep slag ditch, which is a dangerous operation. Therefore, the operators not only have high labor intensity, but also relatively high operating risks. The most important thing is that the operating time is not fixed and there are many uncertain factors. In serious cases, it will also affect the organization of the production rhythm of the entire carbon steel thin plate production line. Utility Model Content

[0006] The utility model aims to address the problems existing in the prior art and to provide a lever-type sliding hanger for roller replacement in a narrow space, thereby ensuring the orderly replacement of the inner cold rollers in the cold roller table of a hot rolling production line, and solving the problem of production organization accidents that are prone to occur due to certain defects in the existing roller hanging point design, namely, unstable operation time and high operation risk when replacing inner cold rollers in different positions in a narrow space.

[0007] To this end, the utility model adopts the following technical solutions:

[0008] A lever-type sliding hanger for replacing a roller table in a narrow space comprises a horizontally arranged bottom plate, a counterweight block is provided above the bottom plate, and a first side plate and a second side plate are provided symmetrically on both sides, one side of the first side plate is connected to the bottom plate, and the other side is provided with a first guide plate, one side of the second side plate is connected to the bottom plate, and the other side is provided with a second guide plate, and the other two sides of the bottom plate are respectively provided with a first cross beam and a second cross beam.

[0009] Furthermore, the first side panel is Z-shaped, including an inclined connecting plate, one end of the connecting plate is provided with a first horizontal plate, and the other end is provided with a second horizontal plate, one end of the first horizontal plate is connected to the connecting plate, and the other end is provided with a hanging hole, and one end of the second horizontal plate is connected to the connecting plate, and the other end is provided with a inclined protrusion.

[0010] Furthermore, the angle between the protrusion and the second transverse plate is 40 to 60 degrees.

[0011] Furthermore, the bottom edge of the connecting plate close to the first transverse plate is arc-shaped.

[0012] Furthermore, the second side panel has the same shape and size as the first side panel.

[0013] Furthermore, the first guide plate is L-shaped, and its bending angle is 70-80 degrees.

[0014] Furthermore, the second guide plate has the same shape and size as the first guide plate.

[0015] Furthermore, the other sides of the first crossbeam and the second crossbeam are both provided with lifting ears.

[0016] The beneficial effects of the utility model are:

[0017] The utility model can always maintain the position of the center line of the roller during use, effectively avoiding the pneumatic pressure belt guard, and also avoiding the fixed slide rail under the walking bridge platform of the original design for disassembling and assembling the roller. It not only optimizes the new roller replacement process and avoids the huge resistance caused by the suspended height of the roller being lower than the conveying plane when the roller is in and out of the conveyor, but also retains the original roller replacement facilities, expands the roller replacement method, ensures the roller replacement rhythm, eliminates the hidden dangers of accidents in production organization, and ensures stable and smooth production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 It is a side structural schematic diagram of the first side plate in the utility model;

[0021] Figure 4 It is a schematic diagram of the use process of the utility model.

[0022] In the figure, a walking bridge platform-E, a lever-type sliding hanger-B for replacing a narrow space track, 1-bottom plate, 1a-first crossbeam, 1b-second crossbeam, 1c-lifting ear, 2-counterweight block, 3-first side plate, 3a-connecting plate, 3b-first cross plate, 3c-second cross plate, 3d-protrusion, 4-second side plate, 5-first guide plate, 6-second guide plate, 7-lifting hole, 8-pneumatic pressure belt guard, 9-inner cold roller, 10-first shackle, 11-second shackle, 12-first hand chain hoist, 13-second hand chain hoist, 14-front pulley, 15-rear pulley, 16-first fixed slide rail, 17-second fixed slide rail. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is described below in conjunction with the accompanying drawings and implementation methods.

[0024] like Figure 1 and 2 As shown, a lever-type sliding hanger for replacing a roller table in a narrow space includes a horizontally arranged bottom plate 1, a counterweight block 2 is arranged above the bottom plate 1, and a first side plate 3 and a second side plate 4 are symmetrically arranged on both sides, and the second side plate 4 has the same shape and size as the first side plate 3.

[0025] like Figure 3 As shown, the first side plate 3 is Z-shaped, including an inclined connecting plate 3a, one end of the connecting plate 3a is provided with a first transverse plate 3b, and the other end is provided with a second transverse plate 3c; one end of the first transverse plate 3b is connected to the connecting plate 3a, and the other end is provided with a hanging hole 7, one end of the second transverse plate 3c is connected to the connecting plate 3a, and the other end is provided with an inclined protrusion 3d, specifically, the angle between the protrusion 3d and the second transverse plate 3c is 40 to 60 degrees, and the bottom edge of the connecting plate 3a close to the first transverse plate 3b is arc-shaped.

[0026] One side of the first side plate 3 is connected to the bottom plate 1, and the other side is provided with a first guide plate 5, one side of the second side plate 4 is connected to the bottom plate 1, and the other side is provided with a second guide plate 6; specifically, the first guide plate 5 is L-shaped, and its bending angle is 70~80 degrees, and the second guide plate 6 has the same shape and size as the first guide plate 5.

[0027] The other two sides of the bottom plate 1 are respectively provided with a first crossbeam 1a and a second crossbeam 1b; specifically, the heights of the first crossbeam 1a, the bottom plate 1 and the second crossbeam 1b gradually decrease; in addition, the other sides of the first crossbeam 1a and the second crossbeam 1b are provided with lifting ears 1c.

[0028] Before using the utility model, it is necessary to hoist the utility model onto the layer cold roller conveying plane, and then use a crane and a rope to cooperate with the front pulley under the walking bridge platform to pull the lifting lug 1c, and use the roller to rotate to pull the utility model to the roller position that needs to be replaced.

[0029] like Figure 4 As shown, taking the inner cold roller 9 below the pneumatic belt pressure shield 8 as an example, the roller removal operation is performed on it, and the utility model is pulled to the pneumatic belt pressure shield, which is located below the walking bridge platform E, that is, the narrow space described in the background technology of the utility model. First, the first shackle 10 and the second shackle 11 are respectively fixed on the two lifting holes 7, and then the first hand winch 12, the second hand winch 13 and the rope are connected below the first shackle 10 and the second shackle 11, and then the rope is tied to both sides of the inner cold roller 9, and the removed inner cold roller 9 is lifted by relying on the first side plate 3, the second side plate 4, the bottom plate 1 and the counterweight 2.

[0030] Next, use the overhead crane and the rope connected to the lifting ear 1c, cooperate with the rear pulley 15 under the walking bridge platform E, and utilize the self-rotation of the roller to pull a lever-type sliding hanger B used for replacing the roller in a narrow space to the rear end of the walking bridge platform E. Then lower the rope and fix it on the second crossbeam 1b. Then the overhead crane cooperates to continue pulling the utility model and pulls it out as a whole to the position where the overhead crane can lift it, so as to perform the alternating operation of the new and old rollers.

[0031] After the old and new rollers are replaced, the overhead crane and ropes are used in conjunction with the front pulley 14 under the walking bridge platform, and the roller table is rotated to pull the utility model to the position of the inner cold roller 9 under the pneumatic pressure belt guard 8 to install the new roller. Finally, the overhead crane and ropes are used in conjunction with the rear pulley 15 under the walking bridge platform to pull out the utility model and hoist it out of the working surface of the cold roller table.

[0032] The entire operation process must be completely pulled by the front pulley 14 and the rear pulley 15 in order for the utility model to always remain on the center line of the roller during the conveying process and effectively avoid the first fixed slide rail 16, the second fixed slide rail 17 and the pneumatic belt pressure shield 8.

[0033] When the utility model is about to reach below the rear pulley 15, the rope must be lowered and fixed on the first beam 1a, and then the overhead crane continues to pull the utility model. At this time, deflection may occur, and the first guide plate 5 and the second guide plate 6 can fully play a guiding role to prevent serious deflection and cause stagnation of the operation process.

Claims

1. A lever-type sliding hanger for roller conveyor replacement in a narrow space, characterized in that: The invention comprises a bottom plate (1) arranged horizontally, a counterweight (2) being arranged above the bottom plate (1), and a first side plate (3) and a second side plate (4) being arranged symmetrically on both sides, one side of the first side plate (3) being connected to the bottom plate (1) and the other side of the first side plate (5), one side of the second side plate (4) being connected to the bottom plate (1) and the other side of the second side plate (6), and the other two sides of the bottom plate (1) being respectively provided with a first cross beam (1a) and a second cross beam (1b).

2. A lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 1, characterized in that: The first side plate (3) is Z-shaped and comprises an inclined connecting plate (3a), one end of the connecting plate (3a) is provided with a first transverse plate (3b), and the other end is provided with a second transverse plate (3c), one end of the first transverse plate (3b) is connected to the connecting plate (3a), and the other end is provided with a hanging hole (7), and one end of the second transverse plate (3c) is connected to the connecting plate (3a), and the other end is provided with an inclined protrusion (3d).

3. A lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 2, characterized in that: The included angle between the protrusion (3d) and the second transverse plate (3c) is 40 to 60 degrees.

4. The lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 2, characterized in that: The bottom edge of the connecting plate (3a) close to the first transverse plate (3b) is arc-shaped.

5. The lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 1, characterized in that: The second side plate (4) has the same shape and size as the first side plate (3).

6. The lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 1, characterized in that: The first guide plate (5) is L-shaped, and its bending angle is 70-80 degrees.

7. A lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 6, characterized in that: The second guide plate (6) has the same shape and size as the first guide plate (5).

8. The lever-type sliding hanger for roller conveyor replacement in a narrow space according to claim 1, characterized in that: The other sides of the first crossbeam (1a) and the second crossbeam (1b) are both provided with lifting ears (1c).

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