A lifting device for a plate rolling machine is provided

Abstract

The utility model discloses a special hoisting device of coiling machine convenient to maintain, including the lifting appliance for the steel plate lifting through the rope and hang in the coiling machine top, the lifting appliance includes two steel plate lifting lugs, two support steel tubes of fixed mounting between two steel plate lifting lugs, the surface of support steel tube is detachably fitted with two fixed base cover, and the surface of fixed base cover is fixedly fitted with the bearing of contact with the steel plate, the special lifting appliance of the utility model carries out the innovative design to the steel plate blanking coiling process of production site, and the unique structure that the special lifting appliance is combined by two steel pipes two sides cover 2 pairs of bearings and the steel plate lifting lug, can rely on the rotating force of coiling machine and realize steel pipe self -rotating in the coiling process, compares with traditional steel plate clip hoisting coiling process, reduced the step of changing the lifting hook, and the operator does not need to adjust and replace the lifting hook frequently in the coiling process, reduces the work link, and improves production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of steel plate cutting and rolling technology, specifically relating to a special hoisting device for a plate rolling machine that is easy to maintain. Background Technology

[0002] The steel plate cutting and rolling process is a crucial link in the production process. Its quality and efficiency directly affect the overall quality of subsequent products and the production schedule. As the core equipment in this process, the rolling machine undertakes the key task of rolling steel plates into the required cylindrical shape. However, in the traditional steel plate rolling operation, there are many problems in the hoisting process that urgently need to be solved.

[0003] For a long time, traditional steel plate clamps have been a commonly used lifting tool in the plate rolling process. When using traditional steel plate clamps for lifting, the operation process is cumbersome and complicated. For each plate rolling operation, the hook needs to be changed multiple times. Specifically, the operator must first fix the steel plate clamp to the steel plate and then use a crane to lift it to a suitable position above the plate rolling machine. After the steel plate initially contacts the plate rolling machine, the lifting operation often needs to be paused to readjust the position of the steel plate clamp or change the lifting method to adapt to the subsequent rolling action of the plate rolling machine. This frequent hook changing operation not only wastes valuable production time and reduces overall production efficiency, but also increases the labor intensity of the operators. In addition, during the lifting operation, due to the need for frequent manual intervention in the lifting process, the distance between the operator and the lifted steel plate is relatively close. Once an operational error or equipment failure occurs, it is easy to cause personnel or object strikes and lifting injuries, which pose a serious threat to the life safety of the operators. Therefore, this utility model proposes a special lifting device for plate rolling machines that is easy to maintain. Utility Model Content

[0004] The purpose of this utility model is to provide a special hoisting device for plate rolling machines that is easy to maintain, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special hoisting device for a plate rolling machine that is easy to maintain, including a hoisting device that is suspended above the plate rolling machine by ropes for lifting steel plates;

[0006] The lifting device includes two steel plate lifting lugs and two supporting steel pipes fixedly installed between the two steel plate lifting lugs. Two fixing base sleeves are detachably fitted on the surface of the supporting steel pipes, and bearings that contact the steel plates are fitted and fixed on the surface of the fixing base sleeves.

[0007] Preferably, the steel plate lifting lug is T-shaped in side view, and the top of the steel plate lifting lug has a lifting hole for connecting an external lifting rope.

[0008] Preferably, the inner surface of the steel plate lifting lug is fixed with two connecting sleeves that are adapted to the supporting steel pipe, and the end of the supporting steel pipe is inserted into the connecting sleeve and fixedly connected to it by connecting bolts and lock nuts.

[0009] Preferably, the surface of the connecting sleeve has two sleeve bolt holes for connecting bolts to pass through, and the end surface of the supporting steel pipe has two steel pipe bolt holes for connecting bolts to pass through.

[0010] Preferably, a positioning slider is fixed on the end surface of the supporting steel pipe relative to one side of each steel pipe bolt hole, and a positioning groove corresponding to the positioning slider is opened on the inner wall of the connecting sleeve relative to one side of each sleeve bolt hole, and the end of the positioning groove extends to the end surface of the connecting sleeve.

[0011] Preferably, the fixed base sleeve and the supporting steel pipe are locked together by four fixing bolts.

[0012] Preferably, the inner wall of the fixed base sleeve has two symmetrical disassembly and assembly notches corresponding to the positioning slider.

[0013] Preferably, the surface of the fixed base sleeve has four base sleeve bolt holes for the fixing bolts to pass through, and the surface of the supporting steel pipe has four threaded holes for the fixing bolts to screw into.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This application has made an innovative design for the steel plate cutting and rolling process on the production site. The special lifting tool has a unique structure formed by two pairs of bearings on both sides of two steel pipes and combined with steel plate lifting lugs. During the rolling process, the steel pipes can rotate on their own by relying on the rotational power of the rolling machine. Compared with the traditional steel plate clamp lifting and rolling process, the step of changing the lifting hook is reduced. Operators do not need to frequently adjust and change the lifting hooks during the rolling process, reducing the operation links, improving production efficiency, saving 1 / 3 of the production time of a single steel plate, and effectively shortening the overall production cycle. Secondly, it reduces the safety risks of personnel being hit by objects and lifting injuries during the lifting operation. Operators can operate from a relatively safe distance, avoiding safety accidents that may be caused by close contact with the steel plate being lifted. This ensures the safe and stable operation of the steel plate rolling process. Moreover, the steel pipes rolled using this lifting tool have a smoother surface roundness, no dead spots, and a better appearance. At the same time, this lifting device is also easy to disassemble and maintain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This utility model Figure 3 A magnified view of a portion of region B in the middle;

[0019] Figure 5 This utility model Figure 2 A magnified view of a portion of region A in the middle;

[0020] Figure 6 This is a cross-sectional view of the connection between the base sleeve and the supporting steel pipe of this utility model;

[0021] In the diagram: 1. Lifting device; 11. Steel plate lifting lug; 12. Supporting steel pipe; 121. Steel pipe bolt hole; 122. Positioning slider; 123. Threaded hole; 13. Bearing; 14. Connecting pipe sleeve; 141. Pipe sleeve bolt hole; 142. Positioning groove; 151. Connecting bolt; 152. Locking nut; 16. Fixed base sleeve; 161. Disassembly notch; 162. Base sleeve bolt hole; 17. Fixing bolt; 2. Plate rolling machine; 3. Steel plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1 to 6 This is an embodiment of the present utility model, which provides the following technical solution: a special hoisting device for a plate rolling machine that is easy to maintain, including a hoisting device 1 that is suspended above the plate rolling machine 2 by ropes for lifting the steel plate 3;

[0025] The lifting device 1 includes two steel plate lifting lugs 11 and two supporting steel pipes 12 fixedly installed between the two steel plate lifting lugs 11. Two fixing base sleeves 16 are detachably fitted onto the surface of the supporting steel pipes 12, and bearings 13 that contact the steel plate 3 are fixedly fitted onto the surface of the fixing base sleeves 16. In actual use, external lifting equipment is connected to the steel plate lifting lugs 11 via lifting ropes, which can lift the entire lifting device 1. Then, the steel plate 3, during the plate rolling process, is inserted into the lifting device 1 and lifted by the bearings 13 on the supporting steel pipes 12 as the plate rolling machine 2 starts. This device can utilize the rotational force of the plate rolling machine 2 during the plate rolling process to make the steel plate 3 roll into a cylindrical shape and then rotate on its own. This allows for the operation of the steel plate 3 during the tube rolling process. Compared to traditional steel plate clamp hoisting and rolling processes, this lifting tool effectively supports and lifts steel plates, reducing the need for hook replacements. Operators no longer need to frequently adjust and change hooks during the rolling process, thus reducing operational steps, improving production efficiency, and saving one-third of the production time per steel plate. This effectively shortens the overall production cycle. Furthermore, it reduces the safety risks of personnel being struck by objects and injuries during hoisting operations. Operators can operate from a relatively safe distance, avoiding potential accidents caused by close contact with the steel plates being lifted. This ensures the safe and stable progress of the steel plate rolling process. Additionally, steel pipes rolled using this lifting tool have a smoother, more rounded surface without dead spots, resulting in a superior appearance.

[0026] In this embodiment, preferably, the steel plate lifting lug 11 is T-shaped in side view, and the top of the steel plate lifting lug 11 is provided with a lifting hole for connecting an external lifting rope.

[0027] In this embodiment, preferably, two connecting sleeves 14 adapted to the supporting steel pipe 12 are welded and fixed to the inner surface of the steel plate lifting lug 11. The end of the supporting steel pipe 12 is inserted into the connecting sleeve 14 and fixedly connected to it by connecting bolts 151 and locking nuts 152.

[0028] In this embodiment, preferably, the surface of the connecting sleeve 14 has two sleeve bolt holes 141 through which the connecting bolts 151 pass, and the end surface of the supporting steel pipe 12 has two steel pipe bolt holes 121 through which the connecting bolts 151 pass, so that the connecting bolts 151 can smoothly pass through the connecting sleeve 14 and the supporting steel pipe 12 and then be locked and fixed by the locking nut 152, so as to achieve stable fixation of the supporting steel pipe 12 after it is inserted into the connecting sleeve 14.

[0029] In this embodiment, preferably, a positioning slider 122 is welded and fixed to one side of the end surface of the supporting steel pipe 12 relative to each steel pipe bolt hole 121. A positioning groove 142 corresponding to the positioning slider 122 is opened on one side of the inner wall of the connecting sleeve 14 relative to each sleeve bolt hole 141. The end of the positioning groove 142 extends to the end surface of the connecting sleeve 14. When the supporting steel pipe 12 is connected and fixed to the connecting sleeve 14, the end of the supporting steel pipe 12 can be inserted into the inner side of the connecting sleeve 14, causing the positioning slider 122 to slide into the positioning groove 142. This achieves the positioning alignment of the sleeve bolt hole 141 and the steel pipe bolt hole 121, facilitating the through connection of the connecting bolt 151 and facilitating installation. If the device needs to be maintained in the future, the connecting bolt 151 and the locking nut 152 can be removed, and then the connecting sleeve 14 can be directly separated from the supporting steel pipe 12 to complete the disassembly and maintenance of the device, which is convenient for later maintenance.

[0030] In this embodiment, preferably, the fixed base sleeve 16 and the supporting steel pipe 12 are locked together by four fixing bolts 17. Later, the fixing bolts 17 can be removed, and the fixed base sleeve 16 can be removed from the end of the supporting steel pipe 12 for maintenance and replacement of the bearing 13. The bearing 13 is a standard part, and the inner diameter of the inner ring of the bearing 13 is selected according to the outer diameter of the fixed base sleeve 16. The inner ring of the bearing 13 is directly welded to the fixed base sleeve 16, and the outer ring of the bearing 13 can rotate normally to effectively support the steel plate 3. Normally, lubricating grease is applied to the inside of the bearing 13 for maintenance, and the maintenance cost is extremely low.

[0031] In this embodiment, preferably, the inner wall of the fixed base sleeve 16 is symmetrically provided with two disassembly notches 161 corresponding to the positioning slider 122, so that when the operator removes the fixed base sleeve 16 from the end of the support steel pipe 12, it will not be blocked by the positioning slider 122. The operator only needs to align the disassembly notch 161 with the positioning slider 122 to remove the fixed base sleeve 16 from the end of the support steel pipe 12 smoothly, which facilitates subsequent maintenance.

[0032] In this embodiment, preferably, the surface of the fixing base sleeve 16 is provided with four base sleeve bolt holes 162 for the fixing bolts 17 to pass through, and the surface of the supporting steel pipe 12 is provided with four threaded holes 123 for the fixing bolts 17 to be screwed in. When the fixing base sleeve 16 is actually connected and fixed to the supporting steel pipe 12, the fixing base sleeve 16 is put on the surface of the supporting steel pipe 12 and moved to the installation position so that the base sleeve bolt holes 162 are aligned with the threaded holes 123. Then, the fixing bolts 17 are passed through the base sleeve bolt holes 162 and screwed into the threaded holes 123 to tighten and fix them. The fixing base sleeve 16 can be fixed on the surface of the supporting steel pipe 12, and the bearing 13 is stably installed on the supporting steel pipe 12.

[0033] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special hoisting device for a plate rolling machine that is easy to maintain, characterized in that: Includes a lifting device (1) that is suspended above the plate rolling machine (2) by ropes to support the steel plate (3); The lifting device (1) includes two steel plate lifting lugs (11) and two supporting steel pipes (12) fixedly installed between the two steel plate lifting lugs (11). The surface of the supporting steel pipes (12) is detachably fitted with two fixing base sleeves (16), and the surface of the fixing base sleeves (16) is fitted with bearings (13) that contact the steel plate (3).

2. The easy-to-maintain special hoisting device for plate rolling machines according to claim 1, characterized in that: The steel plate lifting lug (11) is T-shaped when viewed from the side, and the top of the steel plate lifting lug (11) is provided with a lifting hole for connecting an external lifting rope.

3. The easy-to-maintain special hoisting device for plate rolling machines according to claim 1, characterized in that: The inner surface of the steel plate lifting lug (11) is fixed with two connecting sleeves (14) that are adapted to the supporting steel pipe (12). The end of the supporting steel pipe (12) is inserted into the connecting sleeve (14) and fixedly connected to it by connecting bolts (151) and locking nuts (152).

4. The easy-to-maintain special hoisting device for plate rolling machines according to claim 3, characterized in that: The surface of the connecting sleeve (14) is provided with two sleeve bolt holes (141) for the connecting bolts (151) to pass through, and the end surface of the supporting steel pipe (12) is provided with two steel pipe bolt holes (121) for the connecting bolts (151) to pass through.

5. A special hoisting device for a plate rolling machine that is easy to maintain, as described in claim 4, is characterized in that: The end surface of the supporting steel pipe (12) is fixed with a positioning slider (122) on one side of each steel pipe bolt hole (121). The inner wall of the connecting sleeve (14) is provided with a positioning groove (142) corresponding to the positioning slider (122) on one side of each sleeve bolt hole (141), and the end of the positioning groove (142) extends all the way to the end surface of the connecting sleeve (14).

6. The easy-to-maintain special hoisting device for plate rolling machines according to claim 1, characterized in that: The fixed base sleeve (16) and the supporting steel pipe (12) are locked together by four fixing bolts (17).

7. A special hoisting device for a plate rolling machine that is easy to maintain, as described in claim 6, is characterized in that: The inner wall of the fixed base sleeve (16) has two symmetrical disassembly notches (161) corresponding to the positioning slider (122).

8. A special hoisting device for a plate rolling machine that is easy to maintain, as described in claim 7, is characterized in that: The surface of the fixed base sleeve (16) is provided with four base sleeve bolt holes (162) for the fixing bolts (17) to pass through, and the surface of the supporting steel pipe (12) is provided with four threaded holes (123) for the fixing bolts (17) to be screwed in.

Images