Hoisting device for roller water retaining ring

Abstract

The utility model relates to a lifting device for a roller water retaining ring, which comprises a lifting hook, more than three chains, a lifting ring and a cantilever crane, the lifting ring is hooked on the cantilever crane, one end of each chain is connected with the lifting ring, and the other end of each chain is connected with the lifting hook; the lifting hook comprises a hook claw and a connecting ring, the connecting ring is fixedly connected with the hook claw, the hook claw is of an L-shaped structure, and the tail part of the bottom edge of the L-shaped structure upwards forms a hooking part. The device has the advantages that the structure is simple, the roller water retaining ring can be carried by operating the cantilever crane only by hooking the lifting hook on the roller water retaining ring when the roller water retaining ring is loaded and unloaded, the device is convenient to use, the labor intensity of workers is reduced, potential safety hazards are eliminated, and the production operation efficiency of inlaying the roller water retaining ring is improved.

Description

Technical Field

[0001] The utility model belongs to the field of roll production, and particularly relates to a hoisting device for a roll water retaining ring. Background Art

[0002] When installing the roll water retaining ring, it is necessary to manually carry the roll water retaining ring to the processing operation area. Two ring inserting operators are required to load and unload the water retaining ring purely by manpower. The weight of a water retaining ring is between 50 and 80 kg, and it is difficult to lift and unload, with a high labor intensity. There is a safety hazard that the operator may sprain the waist due to excessive force. In addition, once the ring inserting operator fails to grasp firmly during the cooperative handling, the water retaining ring may slip and hit the foot, causing injury accidents. Due to manual operation, the ring inserting production efficiency is low, restricting the production progress of the roll ring inserting operation in the operation area.

[0003] In the prior art, the patent application number: CN202311744814.1, discloses a hoisting device for hot processing of large ring forgings. Through the adjusting device, the rotating motor, gear, internal gear ring, rotating ring, inclined groove rod and L-shaped sliding rod cooperate to pull the loop along the outside of the cross beam towards the center of the support ring, so that the L-shaped sliding rod drives the chain two and the hook to automatically adjust to adapt to different sizes of ring forgings, thereby reducing the labor intensity of workers; at the same time, the position of the internal gear ring is restricted by the L-shaped inserting rod, thereby improving the stability of the positions of the chain two and the hook after adjustment. However, this hoisting device has a complex structure and a high manufacturing cost, which is not conducive to on-site layout. Summary of the Invention

[0004] The purpose of the utility model is to provide a hoisting device for a roll water retaining ring, which has a simple structure, is easy to use, occupies a small area, reduces the labor intensity of workers, and eliminates safety hazards.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0006] A hoisting device for a roll water retaining ring includes a hook, a chain, a lifting ring, and a jib crane. The lifting ring is hooked on the jib crane. One end of the chain is connected to the lifting ring, and the other end is connected to the hook. There are more than three chains; the hook includes a claw and a connecting ring. The connecting ring is fixedly connected to the claw. The claw is of an L-shaped structure, and the tail of the bottom edge of the L-shaped structure forms a lifting part upwards.

[0007] The distance between the lifting part of the claw and the vertical side of the L-shaped structure is not less than the outer edge thickness of the roll water retaining ring.

[0008] There are more than two claws on the hook.

[0009] It also includes a limiting structure, which includes a connecting rod and a supporting rod. The connecting rod and the supporting rod are fixedly connected by bolts. Connecting parts are provided at both ends of the connecting rod and one end of the supporting rod. The connecting part is composed of three parallel inserting rods, and the connecting part is inserted into the chain.

[0010] A pin shaft or a screw rod is connected to the connecting part.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The hoisting device for the roll water retaining ring has a simple structure. When loading and unloading the roll water retaining ring, the hook only needs to be hooked on the roll water retaining ring, and then the roll water retaining ring can be transported by operating the cantilever crane. It is convenient to use, reduces the labor intensity of workers, eliminates potential safety hazards, and improves the production operation efficiency of inlaying the roll water retaining ring.

[0013] 2. The present utility model uses a cantilever crane to provide power, and the hook firmly hooks the roll water retaining ring, realizing mechanical operation to replace manual handling of the roll water retaining ring. The operation is simple and safe. The time of the ring inlaying process is shortened, and thus the roll production efficiency is improved. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present utility model.

[0015] Figure 2 It is a front view of the hook.

[0016] Figure 3 It is a side view of the hook.

[0017] Figure 4 It is a schematic structural diagram of the roll water retaining ring.

[0018] Figure 5 It is a schematic diagram of the limiting structure.

[0019] Figure 6 It is a front view of the connecting rod.

[0020] Figure 7 It is a top view of the connecting rod

[0021] Figure 8 It is a side view of the supporting rod.

[0022] Figure 9 It is a front view of the supporting rod.

[0023] Figure 10 It is a connection schematic diagram of the limiting structure and the chain.

[0024] In the figure: 1 - lifting ring; 2 - chain; 3 - hook; 4 - roll water baffle ring; 31 - L-shaped structure; 32 - lifting part; 33 - connecting ring; 41 - outer edge; 51 - connecting rod; 52 - supporting rod; 53 - connecting part; 54 - inserting rod; 55 - mounting hole; 56 - threaded hole. Detailed implementation mode

[0025] The present utility model will be described in detail below in conjunction with the accompanying drawings of the specification, but it should be pointed out that the implementation of the present utility model is not limited to the following embodiments.

[0026] Embodiment 1

[0027] See Figures 1 - 3 , a lifting device for a roll water baffle ring, comprising a hook 3, a chain 2, a lifting ring 1, and a jib crane. The lifting ring 1 is hooked on the jib crane. One end of the chain 2 is connected to the lifting ring 1, and the other end is connected to the hook 3. There are three or more chains 2. In this embodiment, there are three chains. When the hook 3 hooks the roll water baffle ring 4, the chains 2 are evenly distributed along the circumferential direction of the roll water baffle ring 4. The hook 3 includes a hook claw and a connecting ring 33. The connecting ring 33 is fixedly connected to the hook claw. The hook claw is an L-shaped structure 31, and the tail of the bottom edge of the L-shaped structure 31 forms an upward lifting part 32. The entire hook 3 can be an integral structure, made by bending a steel bar. There are two hook claws to increase the contact area between the hook 3 and the roll water baffle ring 4, and at the same time increase the force application points, making the lifting process more stable and reliable. The steel bar can be hot rolled ribbed steel bar (HRB400). After being bent into the shape of the hook 3, the connection positions of the two hook claws and the connecting ring 33 are welded and fixed. The lengths of the chains 2 are the same, all being 800 - 1000 mm.

[0028] See Figures 1 - 4 , the distance between the lifting part 32 of the hook claw and the vertical side of the L-shaped structure 31 is not less than the thickness D of the outer edge 41 of the roll water baffle ring 4, so that the lifting part 32 can be inserted into the roll water baffle ring 4, and the outer edge 41 of the roll water baffle ring 4 falls into the groove formed by the lifting part 32 and the L-shaped structure 31, avoiding the phenomenon of unhooking during the lifting of the roll water baffle ring 4. The jib cranes are installed on the workshop floor, and the installation position should not affect the operation of installing the roll water baffle ring 4.

[0029] When lifting the roll water baffle ring 4, two people cooperate with each other. One person operates the cantilever crane to drive the cantilever crane to a suitable position above the lifting ring 1. Then, in cooperation with another operator, hook the hook 3 on the outer side of the roll water baffle ring 4. The positions where the three hooks 3 are hung are equally divided into three parts to ensure stability. After the hook 3 is hung, the operator of the cantilever crane slowly starts the control button. After the hook 3 firmly hooks the water baffle ring and is confirmed, it is slowly lifted and placed on the ring inserting heater. Then, release the hook 3 and drive the cantilever crane to a position far away from the ring inserting heater. The roll water baffle ring 4 is heated to a certain temperature according to the process requirements. Then, start the cantilever crane again, hook the hook 3, lift the water baffle ring to the position where the roll ring is to be inserted, remove the roll water baffle ring 4, and start the ring inserting process.

[0030] Embodiment 2

[0031] On the basis of Embodiment 1, see Figures 1 - 10 , the lifting device for the roll water baffle ring further includes a limiting structure. The limiting structure includes a connecting rod 51 and a supporting rod 52. A threaded hole 56 is formed in the supporting rod 52. The connecting rod 51 and the supporting rod 52 are fixedly connected by bolts to form a T-shaped structure. The three end points are on the same circle and are evenly distributed. The diameter of this circle is smaller than the outer diameter of the roll water baffle ring 4. Connecting parts 53 are provided at both ends of the connecting rod 51 and one end of the supporting rod 52. The connecting part 53 is composed of three parallel inserting rods 54. The connecting part 53 is inserted into the chain link of the chain 2 to limit the positions of the three chains 2. An installation hole 55 is provided on the connecting part 53 for connecting a pin shaft or a screw rod. After the connecting part 53 is inserted into the chain link of the chain 2, a pin shaft or a screw rod is installed at the outer end of the connecting part 53 to prevent the chain link from detaching from the connecting rod 51 or the supporting rod 52. Before lifting the roll water baffle ring 4, install the limiting structure on the chain 2, and then lift the roll water baffle ring 4. When not in use for a long time, remove the limiting structure to reduce the floor area of this lifting device.

[0032] The structure of the utility model is simple. When loading and unloading the roll water baffle ring, it is only necessary to hook the hook on the roll water baffle ring, and then the roll water baffle ring can be transported by operating the cantilever crane. It is convenient to use, reduces the labor intensity of workers, eliminates potential safety hazards, and improves the production operation efficiency of inserting the roll water baffle ring.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] Without departing from the principles and spirit of the present utility model, various changes, modifications, substitutions, and variations can be made to the technical features of these embodiments. The scope of the present utility model is defined by the claims and their equivalents.

[0035] The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present utility model and cannot be construed in any way as a limitation on the protection scope of the present utility model. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present utility model without creative efforts, and these embodiments will all fall within the protection scope of the present utility model.

Claims

1. A hoisting device for a roller water retaining ring, characterized in that: It includes a hook, a chain, a ring, and a cantilever crane. The ring hook is hung on the cantilever crane. One end of the chain is connected to the ring, and the other end is connected to the hook. There are more than three chains. The hook includes a hook claw and a connecting ring. The connecting ring is fixedly connected to the hook claw. The hook claw is an L-shaped structure, and the bottom edge tail of the L-shaped structure forms a hooking portion upwards.

2. A hoisting device for a water retaining ring of a rolling mill roll according to claim 1, characterized in that: The distance between the hooking portion of the hook claw and the vertical side of the L-shaped structure is not less than the outer edge thickness of the roller water retaining ring.

3. A hoisting device for a roller water retaining ring according to claim 1, characterized in that: The hook has more than two hook claws.

4. A hoisting device for a water retaining ring of a rolling mill roll according to claim 1, characterized in that: It also includes a limiting structure, which includes a connecting rod and a supporting rod. The connecting rod and the supporting rod are fixedly connected by bolts. Both ends of the connecting rod and one end of the supporting rod are provided with connecting parts, and the connecting part is composed of three plug rods arranged parallel to each other, and the connecting part is plugged into the chain.

5. A hoisting device for a water retaining ring of a rolling mill roll according to claim 4, characterized in that: The connecting part is connected with a pin shaft or a screw rod.

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