Continuous roller hoisting device

Abstract

The utility model relates to the field of continuous rollers, in particular to a continuous roller hoisting device which comprises a hoisting frame, a main body for hoisting a continuous roller, a hoisting guide rail and a guide rail sliding sleeve fixedly arranged above the hoisting frame and used for being in sliding connection with the outside, winding motors are fixedly installed on the two sides of the upper portion of the hoisting cross beam. The hoisting device is provided with the hoisting steel rope, the hoisting head, the gradienter, the telescopic air cylinder, the balance sliding block, the balance balancing weight and the mechanical pneumatic chuck, and due to the fact that the weight of a hoisted continuous roller is large, the balance degree and the gravity center of the hoisting head are insufficient due to the eccentric force of movement in the hoisting and moving process; in this way, according to the balance orientation of a gradienter on the hoisting head, the telescopic air cylinder pushes the balance sliding block to move in the hoisting head, so that the position nodes of the balance weight blocks at the two ends of the hoisting head are controlled, and the hoisting head which is eccentric in the moving process is corrected and kept balanced.

Description

Technical Field

[0001] This utility model relates to the field of continuous rolling mill rolls, and specifically to a continuous rolling mill roll hoisting device. Background Technology

[0002] Continuous rolling mill rolls are core components used in hot or cold continuous rolling mills for the continuous rolling of metal sheets, strips, or profiles. They typically consist of multiple sets of work rolls, support rolls, and other components forming a rolling stand. Through multiple passes of continuous rolling, the metal billet is gradually compressed to the target thickness and size. Continuous rolling mill roll hoisting devices are specialized equipment used for the installation, disassembly, and maintenance of rolls in continuous rolling mills. They achieve safe and efficient hoisting and positioning of rolls through mechanical structures or hydraulic systems.

[0003] A search revealed a continuous rolling mill hoisting device (CN208120549U). This device includes a hoisting frame with connecting crossbars and hoisting hooks at both ends of the connecting crossbars. Each hook comprises a longitudinal connecting rod and a hook portion, which are integrated. The hook portion corresponds to the shape of the end of the continuous rolling mill. This invention provides a method for accurately hoisting continuous rolling mills at high temperatures in a single operation. It is applicable to the hoisting and movement of continuous rolling mills, allowing for direct hoisting and movement of high-temperature continuous rolling mills. It is convenient to use and improves work efficiency.

[0004] Existing continuous rolling mill hoisting devices, due to the large weight of the continuous rolling mill rolls, lack dynamic balancing capabilities during hoisting and movement. This can lead to imbalance caused by eccentricity, resulting in the continuous rolling mill rolls falling or damage to the hoisting device, and even causing personal injury or death. Furthermore, the continuous rolling mill hoisting devices in the aforementioned comparative cases also lack dynamic balancing capabilities. As a result, under long-term use, the continuous rolling mill hoisting devices cannot quickly and stably complete the positioning and installation of the rolls, requiring multiple adjustments or manual intervention, thus prolonging the working time.

[0005] Therefore, it is necessary to invent a continuous rolling mill hoisting device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a continuous rolling mill roll hoisting device. Through hoisting cables, a hoisting head, a level, a telescopic cylinder, a balance block, a counterweight, and a mechanical-pneumatic chuck, the device achieves dynamic balancing, preventing roll tilting or imbalance due to eccentricity during hoisting and movement. This avoids accidents such as roll falls and collisions. It can quickly correct imbalances, reduce the risk of overturning during hoisting, and ensure the safety of personnel and equipment. Furthermore, the dynamic balancing capability allows for precise installation of the rolls onto the mill stand, reducing roll wear and rolling defects caused by installation errors, improving product quality and production efficiency. Simultaneously, it also ensures the continuous rolling mill rolls are properly positioned. The roll hoisting device adapts to complex working conditions and meets the requirements for continuous roll hoisting in different environments. It solves the problem that existing continuous roll hoisting devices lack dynamic balance during hoisting and movement due to the large weight of the continuous rolls. This imbalance caused by eccentricity can lead to the continuous rolls falling or damage to the hoisting device, and even cause personal injury. Furthermore, the continuous roll hoisting device in the aforementioned comparative case also lacks dynamic balance. As a result, under long-term use, the continuous roll hoisting device cannot quickly and stably complete the positioning and installation of the rolls, requiring multiple adjustments or manual intervention, which prolongs the working time.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a continuous rolling mill roll hoisting device, including a hoisting frame and a main body for hoisting continuous rolling mill rolls;

[0008] A lifting guide rail is fixedly installed above the lifting frame for external sliding connection of the guide rail sleeve. A lifting beam is fixedly installed above the guide rail sleeve. A winding motor is fixedly installed on both sides above the lifting beam. A steel drum is fixedly installed at the output end of the winding motor. A lifting steel cable is wound around the outside of the steel drum. A lifting head is fixedly connected to the bottom end of the lifting steel cable.

[0009] A level is fixedly installed above the lifting head to observe its balance. The lifting head has balance grooves on both sides. A telescopic cylinder is fixedly installed inside the balance groove. A balance slider is slidably connected inside the balance groove. An external rod is fixedly installed outside the balance slider. A counterweight is fixedly installed at the bottom of the external rod. Mechanical pneumatic clamps are fixedly installed at both ends of the lifting head.

[0010] Preferably, the lifting head is slidably connected to the lifting frame, and the lifting cables are symmetrically arranged about the central axis of the lifting head.

[0011] Preferably, the front end of the telescopic cylinder is fixedly connected to the outside of the balance slider, and the balance groove is used in conjunction with the balance slider.

[0012] Preferably, the counterweight is slidably connected to the lifting head, and the external rod is perpendicular to the counterweight.

[0013] Preferably, lifting booms are fixedly installed on both outer sides of the lifting head, and adjusting screws are threaded through both outer sides of the lifting booms. The front end of the adjusting screws is rotatably connected to a first roller clamp.

[0014] Preferably, the outer surface of the first roller clamp is threaded with a double-ended bolt, and the front end of the double-ended bolt is threaded to a second roller clamp.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This utility model includes a lifting cable, a lifting head, a level, a telescopic cylinder, a balance slider, a counterweight, and a mechanical-pneumatic chuck. Because the continuous rolling mill roll being lifted is heavy, eccentric forces during lifting can cause imbalance and a deterioration in the center of gravity of the lifting head. By using the level on the lifting head to adjust the balance, the telescopic cylinder moves the balance slider inside the lifting head, controlling the position of the counterweight at both ends of the lifting head. This corrects the eccentricity of the lifting head during movement and maintains its balance, improving the overall efficiency. This dynamic balancing capability prevents the continuous rolling mill rolls from tilting or becoming unbalanced due to eccentricity during hoisting and movement, thus avoiding accidents such as roll falls and collisions. It can quickly correct imbalances, reduce the risk of overturning during hoisting, and ensure the safety of personnel and equipment. Moreover, the dynamic balancing capability allows for precise installation of the rolls onto the mill stand, reducing problems such as roll wear and rolling defects caused by installation errors, improving product quality and production efficiency. At the same time, it also allows the continuous rolling mill roll hoisting device to adapt to complex working conditions and meet the needs of continuous rolling mill roll hoisting operations in different environments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the hoisting beam structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the lifting head structure of this utility model;

[0021] Figure 4This is a schematic diagram of the balance weight structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting boom structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Lifting frame; 2. Lifting guide rail; 3. Guide rail sleeve; 4. Lifting crossbeam; 5. Winding motor; 6. Steel drum; 7. Lifting steel cable; 8. Lifting head; 9. Level; 10. Balancing chute; 11. Telescopic cylinder; 12. Balancing slider; 13. External rod; 14. Balancing counterweight; 15. Mechanical and pneumatic chuck; 16. Lifting boom; 17. Adjusting screw; 18. First roller clamp; 19. Double-ended bolt; 20. Second roller clamp. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5 The continuous rolling mill hoisting device shown includes a hoisting frame 1 and a main body for hoisting the continuous rolling mill rolls;

[0027] The lifting guide rail 2 is fixedly installed above the lifting frame 1 and is used to externally slide the guide rail sleeve 3. The lifting crossbeam 4 is fixedly installed above the guide rail sleeve 3. The lifting crossbeam 4 is fixedly installed on both sides above the lifting crossbeam 4. The output end of the lifting motor 5 is fixedly installed with a steel drum 6. The outside of the steel drum 6 is wound with a lifting steel cable 7. The bottom end of the lifting steel cable 7 is fixedly connected to a lifting head 8.

[0028] A level 9 is fixedly installed above the lifting head 8 to observe the balance of the lifting head 8. The lifting head 8 has balance grooves 10 on both sides of its exterior. A telescopic cylinder 11 is fixedly installed inside the balance groove 10. A balance slider 12 is slidably connected inside the balance groove 10. An external rod 13 is fixedly installed outside the balance slider 12. A counterweight 14 is fixedly installed at the bottom of the external rod 13. Mechanical pneumatic clamps 15 are fixedly installed at both ends of the lifting head 8. Based on the balance orientation of the level 9 on the lifting head 8, the telescopic cylinder 11 pushes the balance slider 12 to move inside the lifting head 8, thereby controlling the position nodes of the counterweight 14 at both ends of the lifting head 8. This corrects any eccentricity in the lifting head 8 during movement and maintains its balance, raising the center of gravity.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, the lifting head 8 is slidably connected to the lifting frame 1. The lifting steel cable 7 is symmetrically arranged around the central axis of the lifting head 8. The lifting steel cable 7 is used to connect the lifting head 8 and complete the lifting and lowering operation of the lifting head 8, thereby completing the lifting. The front end of the telescopic cylinder 11 is fixedly connected to the outside of the balance slider 12. The balance slide 10 is used in conjunction with the balance slider 12. The telescopic cylinder 11 pushes the balance slider 12 to move inside the lifting head 8, thereby controlling the position nodes of the balance counterweight 14 at both ends of the lifting head 8.

[0030] like Figure 1 , Figure 4 and Figure 5 As shown, the counterweight 14 is slidably connected to the lifting head 8. The external rod 13 and the counterweight 14 are vertically distributed. The counterweight 14 is used at both ends of the lifting head 8 to balance the lifting head 8 and reduce the eccentricity generated during the lifting movement. The lifting boom 16 is fixedly installed on both sides of the outside of the lifting head 8. The adjusting screw 17 is threaded through both sides of the outside of the lifting boom 16. The front end of the adjusting screw 17 is rotatably connected to the first roller clamp 18. The first roller clamp 18 and the second roller clamp 20 further assist the mechanical pneumatic chuck 15 to strengthen the lifting clamping force on the continuous rolling roll and reduce the sliding of the hook during the lifting process. The outside of the first roller clamp 18 is threaded through the double-ended bolt 19. The front end of the double-ended bolt 19 is threaded to the second roller clamp 20. The overall structure of the first roller clamp 18 is simple and easy to operate. If a fault occurs, it is convenient for maintenance personnel to maintain or replace it in time without delaying the normal use of the device.

[0031] The working principle of this practical application is as follows: First, the continuous rolling mill hoisting device is installed above the continuous rolling mill roll to be hoisted. Then, the external power supply is connected, and the switch of the winding motor 5 is turned on, allowing the winding motor 5 to drive the steel coil 6 to rotate. The hoisting cable 7 lowers the hoisting head 8. Next, the continuous rolling mill roll is placed below the hoisting head 8. First, the mechanical pneumatic chuck 15 is extended and retracted to clamp both ends of the continuous rolling mill roll. Then, the adjusting screw 17 on the outside of the hoisting boom 16 is adjusted so that the first roll clamp 18 and the second roll clamp 20 fit against the outside of the continuous rolling mill roll. Finally, the double... Head bolt 19 connects the first roll clamp 18 and the second roll clamp 20, thus completing the fixation of the continuous rolling roll before hoisting. The first roll clamp 18 and the second roll clamp 20 further assist the mechanical pneumatic chuck 15 in strengthening the hoisting clamping force of the continuous rolling roll, reducing slippage and other issues during the hoisting process. After the preparation work is completed, the hoisting cable 7 can be raised normally, driving the hoisting head 8 and the continuous rolling roll below to lift, and the continuous rolling roll hoisting work can be carried out. Then, when the continuous rolling roll is moved by the hoisting guide rail 2, guide rail sleeve 3, and hoisting crossbeam 4, the movement will cause... The eccentric force caused by the movement leads to insufficient balance and center of gravity of the lifting head 8. Then, based on the balance orientation of the level 9 on the lifting head 8, the telescopic cylinder 11 pushes the balance slider 12 to move inside the lifting head 8, thereby controlling the position nodes of the balance counterweight 14 at both ends of the lifting head 8. This corrects the eccentricity of the lifting head 8 during movement and maintains balance, raising the center of gravity. This dynamic balancing ability can prevent the continuous rolling mill from tilting or becoming unbalanced due to eccentricity during the lifting and movement of the continuous rolling mill, thus avoiding accidents such as the continuous rolling mill falling and colliding. It can also quickly correct the unbalanced state, reduce the risk of overturning during the lifting process, and ensure the safety of personnel and equipment. After the continuous rolling mill is lifted and moved to the designated position, the continuous rolling mill can be lowered and installed according to the above operation. Finally, after completing all the installation and use of the continuous rolling mill lifting device according to the above operation, turn off the switch of the lifting guide rail 2, the switch of the winding motor 5, and the switch of the telescopic cylinder 11. If it is not used for a long time, simply disconnect the external power supply. In this way, the use of the continuous rolling mill lifting device is completed.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A continuous rolling mill roll hoisting device, characterized in that: include Lifting frame (1), the main body used for lifting continuous rolling mill rolls; The hoisting guide rail (2) is fixedly installed above the hoisting frame (1) and is used to externally slide the guide rail sleeve (3). A hoisting crossbeam (4) is fixedly installed above the guide rail sleeve (3). A winding motor (5) is fixedly installed on both sides above the hoisting crossbeam (4). A steel drum (6) is fixedly installed at the output end of the winding motor (5). A hoisting steel cable (7) is wound around the outside of the steel drum (6). A hoisting head (8) is fixedly connected to the bottom end of the hoisting steel cable (7). A level (9) is fixedly installed above the lifting head (8) to observe the balance of the lifting head (8). The lifting head (8) has balance grooves (10) on both sides. A telescopic cylinder (11) is fixedly installed inside the balance groove (10). A balance slider (12) is slidably connected inside the balance groove (10). An external rod (13) is fixedly installed outside the balance slider (12). A balance counterweight (14) is fixedly installed at the bottom of the external rod (13). Mechanical pneumatic clamps (15) are fixedly installed at both ends of the lifting head (8).

2. The continuous rolling mill roll hoisting device according to claim 1, characterized in that: The lifting head (8) is slidably connected to the lifting frame (1), and the lifting steel cable (7) is symmetrically arranged about the central axis of the lifting head (8).

3. The continuous rolling mill roll hoisting device according to claim 1, characterized in that: The front end of the telescopic cylinder (11) is fixedly connected to the outside of the balance slider (12), and the balance groove (10) is used in conjunction with the balance slider (12).

4. The continuous rolling mill roll hoisting device according to claim 1, characterized in that: The counterweight (14) is slidably connected to the lifting head (8), and the external rod (13) is vertically distributed with the counterweight (14).

5. A continuous rolling mill roll hoisting device according to claim 1, characterized in that: Lifting booms (16) are fixedly installed on both sides of the outer side of the lifting head (8). Adjusting screws (17) are threaded through both sides of the outer side of the lifting booms (16). The front end of the adjusting screws (17) is rotatably connected to a first roller hoop (18).

6. A continuous rolling mill roll hoisting device according to claim 5, characterized in that: The outer surface of the first roller clamp (18) is threaded with a double-ended bolt (19), and the front end of the double-ended bolt (19) is threaded to a second roller clamp (20).

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