Lifting device suitable for roller

Abstract

A lifting device suitable for a roller comprises a long plate, a lifting ring and a grabbing part. The hanging ring is arranged in the center of the top end face of the long plate. The number of the grabbing parts is two, and the grabbing parts are arranged at the two ends of the long plate in the length direction of the long plate. The grasping part comprises a displacement mechanism and a grasping mechanism; the displacement mechanism is arranged on the bottom end surface of the long plate; and the grasping mechanism is arranged on the displacement mechanism. According to the utility model, the transfer efficiency of the roller is improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to a hoisting device, in particular to a device capable of quickly transferring a roll, belonging to the technical field of roll hoisting equipment. Background Art

[0002] Rolls play a crucial role in the steel rolling process and are the main working components that cause continuous plastic deformation of the rolled piece. Their performance and quality directly affect the accuracy, surface quality, and production efficiency of the rolled products. Features such as high strength, high wear resistance, and fatigue resistance can reduce the rolling cost. As the rolling operation progresses, according to production requirements, it is necessary to replace or transfer the rolls. The transfer of the rolls is completed by a crane in cooperation with steel ropes and slings. However, the following problems often occur in actual use: 1. Due to the presence of oil stains, the surfaces of the steel ropes and slings are relatively slippery, and there is a risk of the roll falling off. 2. As the steel ropes and slings wear, the core wires break, which will cause the roll to drop. 3. The sling length is relatively long, and the direction is not easy to control. There is a risk of the roll colliding during the hoisting process, which is likely to damage the roll. The entire hoisting process will not only cause quality problems of the roll but also pose safety hazards. Therefore, a hoisting device is needed that can reliably and quickly perform the transfer operation of the roll. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a hoisting device suitable for rolls, which can reliably and quickly perform the transfer process of the rolls.

[0004] The problems of the utility model are solved by the following technical solutions:

[0005] A hoisting device suitable for rolls includes a long board, a lifting ring, and a gripping part. The lifting ring is arranged at the center of the top surface of the long board. The number of the gripping parts is two, and they are arranged at both ends of the long board along the length direction of the long board. The gripping part includes a displacement mechanism and a gripping mechanism. The displacement mechanism is arranged at the bottom end surface of the long board. The gripping mechanism is arranged on the displacement mechanism. The number of the gripping mechanisms is two, and they are symmetrically arranged at both ends of the bottom end surface of the connecting plate. The gripping mechanism includes a column, a flap, a rotating shaft, and a small winch. The column is arranged at one end of the bottom end surface of the connecting plate. A square hole is arranged at the bottom end of the column, and the opening direction line of the square hole is parallel to the length direction line of the connecting plate. Both ends of the rotating shaft are pivotally connected to the inner walls of both sides of the bottom of the square hole at the bottom end of the column. One end of the flap is arranged on the rotating shaft, and the other end of the flap extends out of the square hole of the column. A torsion spring is arranged between the rotating shaft and the inner wall of the square hole of the column. A baffle is arranged on the top end of the inner wall of the square hole of the column on the side far from the lead screw. The small winch is arranged on the end surface of the baffle far from the lead screw, and the end of the steel wire rope of the small winch is connected to the middle position of the flap.

[0006] The above-mentioned hoisting device applicable to rolls, wherein the displacement mechanism includes a displacement member and a driving member; both the displacement member and the driving member are arranged at the bottom end of the long plate, and the displacement member is connected to the driving member.

[0007] The above-mentioned hoisting device applicable to rolls, wherein the displacement member includes a U-shaped slider and a connecting plate; the number of the U-shaped sliders is two, and they are respectively slidably arranged on the side walls on both sides of the long plate in the width direction, and the inner groove of the U-shaped slider is slidably clamped on the side wall of the long plate; the connecting plate is arranged between the bottom end faces of the two U-shaped sliders; the length direction line of the connecting plate is perpendicular to the length direction line of the long plate.

[0008] The above-mentioned hoisting device applicable to rolls, wherein the driving member includes a motor, a lead screw and a lead screw nut; the motor is arranged at the central position of the bottom end face of the long plate, a support plate is arranged at the end of the long plate, one end of the lead screw is connected to the output shaft of the motor, and the other end is pivotally connected to the support plate; a hole is arranged at the center of the connecting plate, and a lead screw nut is arranged in the hole, and the lead screw passes through the lead screw nut; the axial center line direction of the lead screw is perpendicular to the length direction line of the connecting plate.

[0009] The utility model adjusts the position of the gripping mechanism through the displacement mechanism, ensures that the two gripping mechanisms can be aligned with the positions of the lifting holes on the bearing boxes on both sides of the roll, ensures that the gripping mechanisms can reliably grip the bearing boxes on both sides of the roll, and further lifts the bearing boxes and the roll assembly as a whole. Description of the Drawings

[0010] Figure 1 is a schematic three-dimensional structure diagram of the utility model.

[0011] The list of each label in the figure is as follows: 1. long plate, 2. U-shaped slider, 3. connecting plate, 4. motor, 5. lead screw nut, 6. column, 7. turning plate, 8. small winch. Detailed Embodiments

[0012] Refer to Figure 1 , the utility model includes a long plate 1, a lifting ring and a gripping part; the lifting ring is arranged at the center of the top end face of the long plate 1; the number of the gripping parts is two, and they are arranged at both ends of the long plate 1 along the length direction of the long plate 1; the gripping parts on both sides respectively grip the bearing boxes on both sides of the roll, and the roll body and the bearing boxes on both sides are an integral whole and are transported together during transportation; the gripping part includes a displacement mechanism and a gripping mechanism; the displacement mechanism is used to drive the gripping mechanism to adjust the position so that it can be aligned with the position of the lifting hole on the bearing box; the displacement mechanism is arranged at the bottom end face of the long plate 1; the gripping mechanism is arranged on the displacement mechanism.

[0013] The displacement mechanism includes a displacement member and a driving member; both the displacement member and the driving member are provided at the bottom end of the long board 1, and the displacement member is connected to the driving member.

[0014] The displacement member includes a U-shaped slider 2 and a connecting plate 3; the number of the U-shaped sliders 2 is two, and they are respectively slidably arranged on the side walls on both sides of the long board 1 in the width direction. The inner groove of the U-shaped slider 2 is slidably clamped on the side wall of the long board 1; the connecting plate 3 is arranged between the bottom end faces of the two U-shaped sliders 2; the two U-shaped sliders 2 on both sides are connected by the connecting plate 3, and the two U-shaped sliders 2 and the connecting plate 3 slide as a whole; the length direction line of the connecting plate 3 is perpendicular to the length direction line of the long board 1.

[0015] The driving member includes a motor 4, a lead screw, and a lead screw nut 5; the motor 4 is arranged at the center position of the bottom end face of the long board 1. A support plate is arranged at the end of the long board 1. One end of the lead screw is connected to the output shaft of the motor 4, and the other end is pivotally connected to the support plate; the motor 4 drives the lead screw to rotate, thereby driving the lead screw nut to move along the axis direction of the lead screw. The lead screw nut drives the combination of the connecting plate 3 and the U-shaped slider 2 to slide synchronously; a hole is provided at the center of the connecting plate 3, and the lead screw nut 5 is arranged in the hole, and the lead screw passes through the lead screw nut 5; the axis direction of the lead screw is perpendicular to the length direction line of the connecting plate 3.

[0016] The number of the gripping mechanisms is two, and they are symmetrically arranged at both ends of the bottom end face of the connecting plate 3; the gripping mechanisms at both ends respectively clamp and grip the lifting holes on both sides of the same bearing box; the gripping mechanism includes a column 6, a flap 7, a rotating shaft, and a small winch 8; the column 6 is arranged at one end of the bottom end face of the connecting plate 3; a square hole is provided at the bottom end of the column 6, and the opening direction line of the square hole is parallel to the length direction line of the connecting plate 3; both ends of the rotating shaft are pivotally connected to the inner walls on both sides of the bottom of the square hole at the bottom end of the column 6; one end of the flap 7 is arranged on the rotating shaft, and the other end of the flap 7 extends out of the square hole of the column 6; the flap 7 can rotate through the rotating shaft, and whether it is docked with the lifting hole on the bearing box is controlled by the rotation of the flap 7; a torsion spring is arranged between the rotating shaft and the inner wall of the square hole of the column 6; the torsion spring provides a force for pressing the flap 7 against the bottom end face of the inner wall of the square hole; a baffle is arranged on the top end of the inner wall of the square hole of the column 6 away from the lead screw; the small winch 8 is arranged on the end face of the baffle away from the lead screw, and the end of the steel wire rope of the small winch 8 is connected to the center position of the flap 7; the flap 7 can be flipped into the square hole by the small winch 8.

[0017] Principle of use: The overhead crane hoists the device to move it to the top of the roller; then the length direction line of the long plate 1 is made parallel to the length direction line of the roller; in the initial state, the winch releases the wire rope, and the flap 7 is in a horizontal state; the motor is controlled to drive the flaps on both sides to adjust their positions horizontally, so that they are respectively located above the corresponding bearing box lifting holes; then the device is slowly lowered, and during the falling process, the flap 7 is naturally pushed to flip into the square hole of the column 6 under the obstruction of the bearing box, until the flap 7 moves to the lifting hole of the bearing box, at which time the space in the lifting hole allows the flap 7 to flip into it, After each flap is flipped into the corresponding lifting hole of the bearing box, the overhead crane drives the device and the roller as a whole upward for transportation; after arriving at the destination, the overhead crane places the roller at the designated location, and then the overhead crane drives the device downward, and under the action of the bottom end surface of the inner wall of the lifting hole, the flap is pushed into the square hole of the column, and at this time the small winch acts to tighten the flap to prevent it from entering the lifting hole again; then the overhead crane drives the device upward, and at this time the flap is pulled by the small winch in the square hole of the column and will not enter the lifting hole again during the upward process; after the device is completely separated from the roller, the roller transportation operation is completed.

Claims

1. A lifting device applicable to rolls, characterized in that: It includes a long board (1), a suspension ring and a gripping part; the suspension ring is arranged at the center of the top surface of the long board (1); the number of the gripping parts is two, and they are arranged at both ends of the long board (1) along the length direction of the long board (1); the gripping part includes a displacement mechanism and a gripping mechanism; the displacement mechanism is arranged on the bottom surface of the long board (1); the gripping mechanism is arranged on the displacement mechanism; the number of the gripping mechanisms is two, and they are symmetrically arranged at both ends of the bottom surface of the connecting plate (3); the gripping mechanism includes a column (6), a flap (7), a rotating shaft and a small winch (8); the column (6) is arranged at one end of the bottom surface of the connecting plate (3); a square hole is arranged at the bottom end of the column (6), and the opening direction line of the square hole is parallel to the length direction line of the connecting plate (3); both ends of the rotating shaft are respectively pivotally connected to the inner walls on both sides of the bottom of the square hole at the bottom end of the column (6); one end of the flap (7) is arranged on the rotating shaft, and the other end of the flap (7) extends out of the square hole of the column (6); a torsion spring is arranged between the rotating shaft and the inner wall of the square hole of the column (6); a baffle is arranged on the top end of the inner wall of the square hole of the column (6) away from the lead screw; the small winch (8) is arranged on the end surface of the baffle away from the lead screw, and the end of the steel wire rope of the small winch (8) is connected to the middle position of the flap (7).

2. The lifting device applicable to a roll according to claim 1, wherein: The displacement mechanism includes a displacement member and a driving member; both the displacement member and the driving member are arranged at the bottom end of the long board (1), and the displacement member is connected to the driving member.

3. The lifting device applicable to rolls according to claim 2, characterized in that: The displacement member includes a U-shaped slider (2) and a connecting plate (3); the number of the U-shaped sliders (2) is two, and they are respectively slidably arranged on the side walls on both sides in the width direction of the long board (1), and the inner groove of the U-shaped slider (2) is slidably clamped on the side wall of the long board (1); the connecting plate (3) is arranged between the bottom ends of the two U-shaped sliders (2); the length direction line of the connecting plate (3) is perpendicular to the length direction line of the long board (1).

4. The hoisting device applicable to a roll according to claim 3, characterized in that: The driving member includes a motor (4), a lead screw and a lead screw nut (5); the motor (4) is arranged at the middle position of the bottom surface of the long board (1), a support plate is arranged at the end of the long board (1), one end of the lead screw is connected to the output shaft of the motor (4), and the other end is pivotally connected to the support plate; a hole is arranged at the center of the connecting plate (3), and a lead screw nut (5) is arranged in the hole, and the lead screw passes through the lead screw nut (5); the axial center line direction of the lead screw is perpendicular to the length direction line of the connecting plate (3).

Images