Special lifting appliance for driving roller in twenty-high roll mill

Abstract

The utility model discloses a special lifting appliance for a driving roller in a twenty-high roll mill, which relates to the technical field of high-precision rolling and comprises a driving roller body, a roller neck groove is arranged on one side of the driving roller body, a spline groove is arranged on one side of the driving roller body and the roller neck groove, and a roller neck plate hook is arranged outside the roller neck groove. A spline plate hook is correspondingly arranged outside the spline groove, and the roll neck plate hook and the spline plate hook are used for being matched with the size of the roll neck groove and the size of the spline groove. Through the roller neck plate hook, the spline plate hook, the sliding frame and the sliding body, an operator can simultaneously operate a cantilever crane remote controller and a roller neck groove and a spline groove formed in the two ends of the transmission roller body in a matched mode, hoisting work is completed, it is guaranteed that the roller body is in a horizontal state, and clamping operation of a grinding machine is facilitated. And the spline groove is matched with the tooth shape of the spline plate hook, so that an operator can simultaneously control clamping of the roller neck plate hook and the spline plate hook at the two ends and adjustment of the sliding frame, cooperation of multiple persons is not needed, and the hoisting time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of high-precision rolling technology, and in particular to a special lifting tool for the drive rolls in a 20-roll mill. Background Technology

[0002] The Sendzimir 20-roll mill is a technological benchmark in the field of cold rolling of metals. In the production of copper sheet and strip, the Sendzimir 20-roll mill has consistently been one of the high-precision rolling equipment, characterized by a large pass reduction rate, strong shape control capability, low rolling force, and a small range of finished product thickness tolerance fluctuations. The Sendzimir 20-roll mill is arranged in a "tower" shape, consisting of 8 support rolls, 6 second intermediate rolls, 4 first intermediate rolls, and 2 work rolls.

[0003] In the existing Sendzimir 20-roll mill, factors such as high temperature and pressure during rolling and relative motion wear can cause damage to the roll surface shape accuracy and the formation of a fatigue layer of a certain thickness. Therefore, the roll system needs to be periodically ground and repaired during use. However, the drive roll is different from other rolls. One end is a roll neck with a bearing, and the other end is a spline connecting the coupling. The spline is basically the same as the roll surface diameter, which brings great inconvenience to daily grinding and lifting.

[0004] To address the difficulty of lifting and grinding existing drive rollers due to their splines, a new design is implemented. This design incorporates a hook that perfectly matches the spline dimensions. A positioning balance beam allows the operator to simultaneously operate the cantilever crane remote. The hooks are adapted to the drive roller neck and spline section at both ends, enabling lifting while ensuring the roller remains horizontal, facilitating clamping on the grinding machine. The perfect fit between the hook and spline dimensions avoids stress concentration caused by small contact surfaces or mismatched shapes in traditional lifting tools, reducing the risk of spline tooth deformation or damage.

[0005] However, in the existing process of hoisting drive rollers, since the widths of the drive rollers are not exactly the same, the same hoisting device cannot hoist drive rollers with different widths. When the hoisting device and the roller width do not match, manual assistance is required to adjust the position of the roller body, which leads to a longer hoisting time per cycle and an increased waiting time for the grinding process, resulting in a reduction in the overall production cycle. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a special lifting tool for the drive roller in the rolling mill, which solves the problem of difficult grinding and lifting of the drive roller due to the spline.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A special lifting device for the drive roll in a 20-roll mill includes a drive roll body with a roll neck groove on one side. A spline groove is formed on one side of both the drive roll body and the roll neck groove. A roll neck hook is provided on the outside of the roll neck groove, and a corresponding spline hook is provided on the outside of the spline groove. The roll neck hook and spline hook are used to adapt to the dimensions of the roll neck groove and spline groove. By hooking and securing the roll neck groove and spline groove with the roll neck hook and spline hook, the perfect match between the spline hook and spline groove dimensions avoids the stress concentration problem caused by small contact surfaces or shape mismatches in traditional lifting devices.

[0009] As a further improvement of this utility model, a rotating buckle is rotatably connected to the center of the top of both the roller neck plate hook and the spline plate hook. A connecting rod is fixedly connected to both sides of each rotating buckle. Four rotating buckles are provided, with two additional rotating buckles fixedly connected to the sides of the connecting rods that are close to each other. A rotating ring is rotatably connected to the outside of each top rotating buckle. The rotating ring allows the roller neck plate hook and the spline plate hook to rotate, thereby achieving the effect of securing the transmission roller body.

[0010] As a further improvement of this utility model, connecting blocks are symmetrically fixedly connected to both horizontal ends of the rotating ring. Two sliding frames are symmetrically fixedly connected to the side of the four connecting blocks that are close to each other. Connecting rods are fixedly connected to the sides of the two sliding frames that are far apart from each other. A spline locking block is fixedly connected to the bottom end of the connecting rod near the spline plate hook, and a roller neck locking block is fixedly connected to the bottom end of the connecting rod near the roller neck plate hook. Through the spline locking block and the roller neck locking block, the width of the transmission roller body can be measured. Therefore, after measuring the width of the transmission roller body, the roller neck plate hook and the spline plate hook can be accurately hooked onto the roller neck groove and the spline groove.

[0011] As a further improvement of this utility model, the spline locking block is fitted to the side of the spline groove near the roller neck groove, and the roller neck locking block is fitted to the side of the roller neck groove near the spline groove. Four arc-shaped grooves are symmetrically formed on the sides of the sliding frames that are close to each other. A driving strip is fixedly connected to each arc-shaped groove on the sliding frame. Sliding grooves are symmetrically formed on the sides of the sliding frames that are close to each other. The arc-shaped grooves and sliding grooves prevent obstruction when the sliding frames are close to each other.

[0012] As a further improvement of this utility model, a recessed frame is provided at the center of the top of each sliding frame, and a rotating body is fixedly connected inside each recessed frame. A sliding body is slidably connected inside the sliding grooves on their adjacent sides. A through-post is rotatably connected through the center of each sliding body, and two circular plates are symmetrically fixedly connected to both ends of the through-post. A driving groove is symmetrically provided on the surface of each circular plate. Through the circular plates and driving grooves, the sliding frames can be moved closer or further apart by rotation, thereby achieving the effect of fixing the distance between the roller neck hook and the spline hook.

[0013] As a further improvement of this utility model, the four driving bars are respectively movable inside the four driving grooves. A rotating handle is fixedly connected to the side of one of the circular plates away from the sliding body. A rotating ring II is rotatably connected to the top of each of the rotating bodies, and a lifting rope is fixedly connected to the side of the two rotating ring IIs that are close to each other. By using the lifting rope, when the transmission roller body, roller neck groove and spline groove are lifted, balance can be achieved, thereby ensuring the stability and safety during lifting.

[0014] Compared with the prior art, the advantages of this utility model are as follows:

[0015] 1. The system utilizes roller neck hooks, spline hooks, sliding frames, and sliding bodies. The roller neck hooks and spline hooks hook the roller neck grooves and spline grooves, allowing for proper fitting and fixing. By positioning the sliding frame and sliding body, the operator can simultaneously operate the jib crane remote control. The system adapts to the roller neck grooves and spline grooves on the drive roller body at both ends, completing the lifting operation and ensuring the roller body is horizontal, facilitating grinding machine clamping. Furthermore, the tooth profiles of the spline grooves and spline hooks are matched, allowing the operator to simultaneously control the clamping of the roller neck hooks and spline hooks at both ends and adjust the sliding frame via the jib crane remote control, eliminating the need for multiple operators and shortening lifting time. The drive roller body is already horizontal before entering the grinding machine, reducing grinding machine centering adjustment time and improving single-clamping efficiency. The perfect size match between the spline hooks and spline grooves avoids stress concentration caused by small contact surfaces or mismatched shapes in traditional lifting tools, reducing the risk of spline groove tooth deformation or damage.

[0016] 2. The system utilizes a drive bar, circular plate, drive groove, and rotating handle. The operator controls the rotation of the rotating handle, which in turn rotates the circular plate. Because the drive groove in the circular plate contains a drive bar, the rotation of the rotating handle causes the two sliding frames to move closer or further apart. Since the connecting rods on the sides of the sliding frames move with them, when the roller neck catch and spline catch contact the inner wall of the roller neck groove and spline groove on one side, they cannot move further. At this point, the roller neck plate hook and spline plate hook will hook the roller neck groove and spline groove, perfectly matching the width of the drive roller body. This achieves the effect of accommodating drive roller bodies of different widths on the same production line, shortening order delivery cycles and adapting to the market demand for small batches and multiple varieties. The universal lifting device can flexibly switch between different processes and different specifications of drive roller bodies. When it is necessary to change to a different width of drive roller body, the same lifting device can quickly adapt without waiting for other specialized lifting equipment, thereby improving equipment utilization and reducing equipment downtime. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the roller neck plate hook, spline plate hook, and sliding frame in this utility model.

[0019] Figure 3 This utility model Figure 2 A magnified three-dimensional structural diagram at point A in the middle.

[0020] Figure 4 This utility model Figure 2 A schematic diagram of the three-dimensional structure from another angle.

[0021] Figure 5 This is a three-dimensional structural diagram of the sliding frame, the drive bar, and the arc groove in this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the circular plate, the driving groove, and the through column in this utility model.

[0023] Figure 7 This is a three-dimensional structural diagram of the transmission roller body, roller neck groove, and spline groove in this utility model.

[0024] In the diagram: 101, drive roller body; 102, roller neck groove; 103, spline groove; 201, roller neck plate hook; 202, spline plate hook; 203, rotating buckle; 204, connecting rod; 205, rotating ring one; 206, connecting block; 207, sliding frame; 208, connecting rod; 209, spline locking block; 210, roller neck locking block; 211, driving bar; 212, arc groove; 213, sliding groove; 214, recessed frame; 215, rotating body; 216, sliding body; 217, circular plate; 218, driving groove; 219, through column; 220, rotating handle; 221, rotating ring two; 222, suspension rope. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] As shown in the figure, a special lifting device for the drive roll in a 20-roll mill includes a drive roll body 101, a roll neck groove 102, a spline groove 103, a roll neck plate hook 201, a spline plate hook 202, a sliding frame 207, a spline block 209, a roll neck block 210, a drive bar 211, and a circular plate 217.

[0028] First, the roller neck plate hook 201 is hooked onto the roller neck groove 102. Then, the roller neck locking block 210 is attached to the inner wall of the roller neck groove 102 near the spline groove 103. At this time, by rotating the rotating handle 220, the two circular plates 217 are rotated simultaneously through the series of through columns 219. Since the driving bar 211 moves inside the driving groove 218 opened in the circular plate 217, the rotation of the circular plate 217 will drive the driving bar 211 to move horizontally in the opposite direction. Since the driving bars 211 are fixedly connected by a sliding frame 207, and the spline locking block 209 and the roller neck locking block 210 are both fixed to the side of the sliding frame 207 by the connecting rod 208 respectively. When the roller neck latch 210 is engaged, the sliding frame 207 will cause the spline latch 209 to move closer to the inner wall of the spline groove 103. Once the spline latch 209 is engaged with the inner wall of the spline groove 103, the rotating handle 220 can no longer be rotated. At this point, the spline plate hook 202 is hooked onto the spline groove 103 along the rotating buckle 203, achieving the effect that the entire device can adapt to different widths of the drive roller body 101. When it is necessary to replace the drive roller body 101 with a different width, the same lifting device can quickly adapt without waiting for other special lifting equipment, thereby improving the utilization rate of the equipment and reducing the downtime. Moreover, during the production process, the replacement time of the drive roller body 101 directly affects the production efficiency. The lifting device's ability to quickly adapt to different widths of the drive roller body 101 can greatly shorten the replacement time.

[0029] By using the positioning sliding frame 207 and the sliding body 216, the operator can simultaneously operate the cantilever crane remote control. The roller neck groove 102 and spline groove 103, which are adapted to the drive roller body 101 at both ends, complete the lifting operation and ensure the roller body is horizontal, facilitating grinding machine clamping. Furthermore, the perfect fit between the spline groove 103 and the spline hook 202 ensures stability and safety during lifting. The perfect fit between the spline groove 103 and the spline hook 202 enables precise engagement. This engagement method is similar to gear meshing, effectively preventing the drive roller body 101 from sliding or shifting during lifting, thereby avoiding collisions or overturning accidents caused by sliding and significantly improving lifting safety. Moreover, the fit between the spline groove 103 and the spline hook 202 ensures uniform force distribution during lifting.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special lifting device for the drive roll in a 20-roll mill, comprising the drive roll body (101), characterized in that, A roller neck groove (102) is provided on one side, and a spline groove (103) is provided on one side of the roller neck groove (102) and the transmission roller body (101). A roller neck plate hook (201) is provided on the outside of the roller neck groove (102), and a corresponding spline plate hook (202) is provided on the outside of the spline groove (103). The roller neck plate hook (201) and the spline plate hook (202) are used to adapt to the size of the roller neck groove (102) and the spline groove (103).

2. The special lifting device for the drive rolls in a 20-roll mill according to claim 1, characterized in that, The top center of the roller neck plate hook (201) and the spline plate hook (202) are rotatably connected to a rotating buckle (203). Both sides of the rotating buckle (203) are fixedly connected to a series rod (204). There are four rotating buckles (203). The other two rotating buckles (203) are fixedly connected to the side of the top of the series rod (204) that are close to each other. The outside of the top rotating buckle (203) is rotatably connected to a rotating ring (205).

3. A special lifting device for the drive rolls in a 20-roll mill according to claim 2, characterized in that, Both horizontal ends of the rotating ring (205) are symmetrically fixedly connected with connecting blocks (206). Two sliding frames (207) are symmetrically fixedly connected to the side of the four connecting blocks (206) that are close to each other. Connecting rods (208) are fixedly connected to the side of the two sliding frames (207) that are far apart from each other. A spline block (209) is fixedly connected to the bottom end of the connecting rod (208) that is close to the spline plate hook (202). A roller neck block (210) is fixedly connected to the bottom end of the connecting rod (208) that is close to the roller neck plate hook (201).

4. A special lifting device for the drive rolls in a 20-roll mill according to claim 3, characterized in that, The spline block (209) is attached to the side of the spline groove (103) near the roller neck groove (102), the roller neck block (210) is attached to the side of the roller neck groove (102) near the spline groove (103), the sliding frame (207) has four arc-shaped grooves (212) symmetrically opened on the side close to each other, the sliding frame (207) is fixedly connected with a drive bar (211) at the part where it is attached to the arc-shaped groove (212), and the sliding frame (207) has a sliding groove (213) symmetrically opened on the side close to each other.

5. A special lifting device for the drive rolls in a 20-roll mill according to claim 4, characterized in that, The top center of each sliding frame (207) is provided with a recessed frame (214), and a rotating body (215) is fixedly connected inside each recessed frame (214). The sliding grooves (213) are slidably connected to each other on one side, and a through column (219) is rotatably connected through the center of each sliding body (216). Two circular plates (217) are symmetrically fixedly connected at both ends of the through column (219). The surfaces of the circular plates (217) are symmetrically provided with driving grooves (218).

6. A special lifting device for the drive rolls in a 20-roll mill according to claim 5, characterized in that, The four drive bars (211) are respectively movable inside the four drive grooves (218). A rotating handle (220) is fixedly connected to the side of the circular plate (217) away from the sliding body (216). The top of the rotating body (215) is rotatably connected to a rotating ring (221). The two rotating rings (221) are fixedly connected to a suspension rope (222) on the side close to each other.

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