Hot-rolled strip steel rolling platform

Abstract

A rolling platform for hot rolled strip steel relates to rolling equipment for strip steel production in the field of steel products and comprises a rolling table located in front of a conveying roller, a lifting winding drum arranged in the center of the rolling table, a clamping groove for clamping the end of the strip steel and arranged on the lifting winding drum, and a track and a self-propelled trolley moving along the track are arranged above the lifting winding drum. A mechanical claw for clamping and releasing the end of the strip steel is arranged below the self-propelled trolley, swing assemblies are symmetrically arranged on the two sides of the position between the conveying roller and the coiling table, the two swing assemblies are arranged in a V shape, and the two swing assemblies are periodically opened and closed to adjust the end of the strip steel to the V-shaped tip end. According to the utility model, the swinging component is arranged at the front part of the conveying roller, the end parts of strip steel randomly distributed in a certain range are gathered to a specific position, and then the conventional mechanical claw is adopted to replace manual traction, so that the cost and expense of plant transformation are greatly reduced, and production accidents are effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the steel product field in the coiling equipment for strip steel production, specifically speaking, it is a hot rolled strip steel winding platform. BACKGROUND

[0002] Strip steel is a kind of product in various steel materials, which is a product with a width of less than 1300mm, and is supplied in a roll with slightly different length according to the size of each roll. Strip steel has the characteristics of high strength, good toughness, high dimensional accuracy, strong processability, etc., and is widely used in the fields of building, automobile manufacturing, machinery manufacturing, home appliance manufacturing, electronic information, energy chemical industry, daily necessities, etc.

[0003] Strip steel is generally produced by hot rolling or cold rolling process. Hot rolled strip steel is heated to a certain temperature, and then rolled into the required thickness and width of strip steel by a hot rolling mill; cold rolled strip steel is further cold-rolled on the basis of hot rolled strip steel to obtain higher dimensional accuracy, surface quality and better mechanical properties.

[0004] In the prior art, cold rolled strip steel does not involve heating problem, so in the process of coiling after cold rolling, horizontal coiling is generally adopted, that is, the strip steel is laid flat on the conveying roller and moved, and is coiled into a steel coil by the coiling machine;

[0005] In the production of hot rolled strip steel, the billet needs to be heated to a certain temperature first, and then rolled by a hot rolling mill. During the whole rolling process, the strip steel is kept at a high temperature. After rolling, the strip steel temperature needs to be reduced to a certain extent by cooling means, and then coiling can be carried out. In order to improve the cooling efficiency, the hot rolled strip steel is generally turned over after coming out of the hot rolling mill, so that its surface is perpendicular to the conveying roller. At this time, the water cooling, air cooling and other cooling equipment arranged on both sides simultaneously cool the two side surfaces of the strip steel, so that the cooling of the strip steel can be realized as quickly as possible in the limited production site.

[0006] Since the strip steel is perpendicular to the conveying roller at this time, the equipment for coiling the strip steel into a strip steel coil is called vertical coiling machine. The core of the vertical coiling machine is the rotating winding drum, and the central axis of the winding drum is perpendicular to the ground. At this time, the end of the strip steel needs to be clamped into the clamping groove on the winding drum, and then the coiling machine is started to rotate the winding drum, so as to complete the coiling of the strip steel.

[0007] Because the strip steel is vertical at this time, that is, perpendicular to the conveying roller, the contact friction of the two is small, and the strip steel cannot be moved forward to the winding drum simply by relying on the friction between the conveying roller and the strip steel, and because of the uncertainty of the movement of the strip steel on the conveying roller, the position of the end of the strip steel is randomly changed within a certain range, and it is difficult to achieve by simply using the cooperation of the existing mechanical claw and track, unless a large range of interconnected tracks are set, but such a large range of interconnected tracks has a high operation complexity, and the time required to move to the end of the strip steel is long, but more importantly, the modification range of the existing factory is large, involves other production lines and processes, and the modification cost is high, based on the above reasons, manual traction is still used to clamp the end of the strip steel into the clamping groove of the winding drum; however, because the temperature of the strip steel is still high at this time, and the initial speed of the strip steel is also high after coming out of the hot rolling mill, the operation risk of the worker when manually pulling the end of the strip steel into the clamping groove of the winding drum is high, and work accidents are prone to occur. Content of the utility model

[0008] In order to solve the problem that the end position of the strip steel is randomly distributed within a certain range when the existing hot-rolled strip steel is wound vertically, and it is difficult to replace manual grabbing with existing mechanical claws, the utility model provides a hot-rolled strip steel winding platform, which sets a swing assembly at the front position of the conveying roller, relies on the periodic opening and closing of the swing assembly to gather the randomly distributed end of the strip steel to a specific position within a certain range, and then uses the existing mechanical claw to replace manual traction, thereby greatly reducing the cost and expense of factory modification, and the equipment used is relatively simple, and the later maintenance is very convenient and low in cost.

[0009] The utility model adopts the technical scheme that a hot-rolled strip steel winding platform comprises a winding table in front of a conveying roller, a gear ring is arranged at the edge of the winding table, the gear ring is engaged with the gear ring at the edge of a driving wheel disc arranged on one side of the winding table, a lifting winding drum capable of descending and extending out of the surface of the winding table is arranged at the center of the winding table, the lifting winding drum can rotate synchronously with the winding table after extending out of the winding table, at least one clamping groove for clamping the end of the strip steel is arranged on the lifting winding drum along the height direction of the lifting winding drum, a strip steel winding transfer roller way is arranged on one side of the winding table, a track and a self-propelled trolley moving along the track are arranged above the lifting winding drum, a mechanical claw for clamping and releasing the end of the strip steel is arranged below the self-propelled trolley, swing assemblies are symmetrically arranged at the positions between the conveying roller and the winding table, the two swing assemblies are arranged in a V shape, and the two swing assemblies periodically open and close to adjust the end of the strip steel to the V-shaped tip position, so that the self-propelled trolley drives the mechanical claw to travel to the V-shaped tip position to clamp the end of the strip steel, and the self-propelled trolley moves to the clamping groove of the lifting winding drum.

[0010] As an optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the track comprises a surrounding segment concentric with the lifting winding drum and surrounding the outer side thereof and a straight segment passing above the V-shaped tip portion, and the mechanical gripper moving with the self-propelled trolley clamps the end portion of the strip steel when passing the V-shaped tip portion on the straight segment, the end portion of the strip steel contacts the side wall of the lifting winding drum when moving to the front end of the straight segment, and the end portion of the strip steel is deformed in close contact with the side wall of the lifting winding drum when moving around the surrounding segment with the self-propelled trolley, and then the end portion of the strip steel is automatically clamped into the clamping groove after encountering the clamping groove.

[0011] As another optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the end of the surrounding segment is communicated with the end of the straight segment through a rotating segment.

[0012] As another optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the lifting winding drum comprises a drum body, and the at least one clamping groove is arranged on the drum body in the axial direction of the drum body and penetrates the top and the bottom of the drum body.

[0013] As another optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the swinging assembly comprises a stand and a swinging plate capable of overturning around the stand, and the swinging plate is driven to swing around the stand by the extension and retraction of the telescopic cylinder.

[0014] As another optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the center of the winding table is provided with a cylindrical cavity, the lifting winding drum is arranged in the cylindrical cavity and is driven by the lifting structure at the bottom to extend to the surface of the winding table or to be completely retracted into the cylindrical cavity, and after the lifting winding drum extends to the limit position, the lifting winding drum can be connected with the winding table and rotates synchronously with the winding table.

[0015] As another optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the lifting winding drum is fixedly connected with the lifting structure through a rotating mechanism, the rotating mechanism comprises a fixed part and a rotating part capable of relative rotation, the bottom surface of the fixed part is fixedly connected with the lifting structure, and the rotating part is arranged above the fixed part through a rotating shaft at the center.

[0016] As another optimization scheme of the above-mentioned hot-rolled strip steel winding platform, the side wall of the rotating mechanism is provided with a plurality of locking mechanisms, each locking mechanism comprises a clamping strip slidingly arranged in a counterbore in the side wall of the rotating part, one end of the clamping strip is fixed with a compression spring arranged in the counterbore, and the other end is an inclined slope, a locking hole in the lifting track of the clamping strip is arranged on the inner wall of the cylindrical cavity of the winding table, and in the lifting process of the clamping strip, the clamping strip can be clamped into the locking hole under the pushing of the compression spring to realize the locking of the rotating part and the winding table, or in the descending process of the clamping strip, the inclined slope of the clamping strip can slide out of the locking hole to realize the separation of the rotating part and the winding table.

[0017] Compared with the prior art, the hot-rolled strip steel winding platform has the following beneficial effects:

[0018] The utility model discloses a swing assembly is arranged at the front position of the conveying roller, and the end of the strip steel randomly distributed in a certain range is gathered to a specific position by the periodic opening and closing of the swing assembly, and then the existing mechanical claw is used to replace manual traction, thereby greatly reducing the cost and expense of plant reconstruction, and the equipment is relatively simple, and the later maintenance is very convenient and low in cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overhead schematic view of the utility model (omitting the strip steel on the conveying roller);

[0020] Figure 2 It is the overhead schematic view of the utility model (omitting the conveying roller);

[0021] Figure 3 It is the front schematic view of the utility model (having clamped the end of the strip steel, but not having been wound yet);

[0022] Figure 4 It is the partial section schematic view of the lifting winding drum and winding table of the utility model;

[0023] Figure 5 It is the overhead schematic view of the utility model (omitting the strip steel on the conveying roller); Figure 4 It is the enlarged schematic view of A in the utility model (locking mechanism is in locking connection state);

[0024] Figure 6 It is the overhead schematic view of the utility model (omitting the strip steel on the conveying roller); Figure 4 It is the enlarged schematic view of A in the utility model (locking mechanism is in locking connection state);

[0025] Figure 7 It is the cooperation relation diagram of track, lifting winding drum and winding table (overhead view);

[0026] Figure 8 It is the overhead schematic view of the lifting winding drum;

[0027] Figure 9 It is the structure schematic view of the swing assembly;

[0028] Figure 10 It is the schematic view when the end of the strip steel just clamps into the clamping slot;

[0029] Figure 11 It is the schematic view when the strip steel is wound on the lifting winding drum;

[0030] Figure 12 It is the strip steel roll after winding, and the lifting winding drum has descended;

[0031] Figure 13 It is the schematic view before starting the winding of the next strip steel roll, and the lifting winding drum is still below the winding table, but prepares to start rising;

[0032] 1, winding platform, 101, driving wheel disc, 102, locking hole, 2, rotating mechanism, 201, lifting structure, 202, rotating part, 203, fixed part, 204, rotating shaft, 205, clamping strip, 206, compression spring, 207, inclined slope, 3, lifting reel, 301, reel body, 302, clamping groove, 4, track, 401, self-propelled trolley, 402, mechanical claw, 403, straight section, 404, surrounding section, 405, rotating section, 5, swing assembly, 501, telescopic cylinder, 502, swing plate, 503, stand, 6, strip steel, 7, conveying roller, 701, strip steel winding transfer roller. DETAILED DESCRIPTION

[0033] The technical scheme of the utility model will be further described in detail in combination with specific embodiments. The parts not described in the following embodiments of the utility model, such as the model of the manipulator, the installation and control of the gripping and loosening of the manipulator, the structure, model and control mode of the self-propelled trolley moving on the track, how to make the driving wheel disc rotate and drive the rotation of the winding platform through the meshing mode of the gear ring, the bearing mode of the winding platform, how to make the telescopic cylinder periodically extend and retract to drive the opening and closing of the swing assembly, are considered as the prior art known or should be known by the person skilled in the art.

[0034] Embodiment 1

[0035] A hot-rolled strip steel winding platform, such as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13As shown, the winding platform includes a winding table 1 in front of the conveying roller 7, the edge of the winding table 1 is provided with a gear ring, and the gear ring is engaged with the gear ring at the edge of the driving wheel disc 101 arranged on one side of the winding table 1. The driving wheel disc 101 is driven to rotate by a conventional power device such as a motor and a speed reducer, so as to drive the winding table 1 to rotate by the engagement of the gear ring. A lifting winding drum 3 capable of descending and extending out of the surface of the winding table 1 is arranged at the center of the winding table 1. When the lifting winding drum 3 descends to the limit position, the lifting winding drum 3 is located below the position of the winding table 1 as a whole, so as not to affect the movement of the coiled strip coil which has been coiled completely. When the lifting winding drum 3 rises to the limit position, the lifting winding drum 3 is located above the surface of the winding table 1 as a whole, so as to be locked and fixed with the winding table 1, and the two rotate synchronously, so that the strip 6 can be wound on the side surface of the lifting winding drum 3. After the lifting winding drum 3 extends out of the winding table 1, the lifting winding drum 3 can rotate synchronously with the winding table 1. The lifting winding drum 3 is provided with at least one clamping groove 302 clamping the end of the strip 6 in the height direction of the lifting winding drum 3. The clamping groove 302 is long strip-shaped and is arranged vertically on the side surface of the lifting winding drum 3. The length of the clamping groove 302 is greater than the width of the strip 6, so that the end of the strip 6 can be clamped into the clamping groove 302. The width of the clamping groove 302 is generally 2 times or more than 2 times, generally 2-5 times the thickness of the strip 6. Figure 3 As shown, a track 4 and a self-propelled trolley 401 moving along the track 4 are arranged above the lifting winding drum 3. A mechanical claw 402 clamping and releasing the end of the strip 6 is arranged below the self-propelled trolley 401. When the mechanical claw 402 clamps the end of the strip 6, it is necessary to ensure that the end of the strip 6 protrudes out of the mechanical claw 402 by at least 10 cm, generally 10-30 cm. The self-propelled trolley 401 is a trolley capable of moving on the track 4 in the prior art. The trolley is manually controlled to move and stop. A commercially available mechanical claw 402 is suspended on the trolley. The mechanical claw 402 can be automatically controlled by programming or clamped and released by a manual remote controller. The mechanical claw 402 is generally lifted by an electric push rod to maintain a certain rigidity in the air. These are mature prior art and do not involve the improvement of the utility model. Therefore, they will not be described here. The two sides of the position between the conveying roller 7 and the winding table 1 are symmetrically provided with swing assemblies 5. The two swing assemblies 5 are arranged in a V shape and periodically open and close to adjust the end of the strip 6 to the V-shaped tip. Due to the strength and toughness of the strip 6, when the end of the strip 6 is located in the movement track of the other end of the swing assembly 5, the two swing assemblies 5 gradually contract and extrude the strip 6 arranged in a zigzag shape. The width of the overall arrangement of the strip 6 gradually decreases, and the end of the strip 6 gradually moves to the V-shaped tip of the swing assembly 5. The self-propelled trolley 401 drives the mechanical claw 402 to travel to the V-shaped tip to clamp the end of the strip 6 and moves to the clamping groove 302 of the lifting winding drum 3.

[0036] In the embodiment,Figure 8 As shown in the figure, the lifting reel 3 comprises a cylinder 301 which is a cylindrical hollow cylinder structure with a height greater than the width of the strip steel 6, and at least one clamping groove 302 is arranged on the cylinder 301 in the axial direction of the cylinder 301 and penetrates the top and bottom of the cylinder 301;

[0037] In this embodiment, as Figure 9 As shown in the figure, the swing assembly 5 comprises a column 503 and a swing plate 502 capable of turning around the column 503, and the swing plate 502 is driven to swing around the column 503 by the extension and retraction of the telescopic cylinder 501. The swing plate 502 is a rectangular plate-shaped member, one end of which is hinged or connected to the column 503, and the other end extends to the conveying roller 7. When the two swing plates 502 are at the farthest distance, the ends of the two swing plates 502 are on both sides of the conveying roller 7, so that the ends of the strip steel 6 are always in the V-shaped space formed by the two swing plates 502. When the distance between the two swing plates 502 is the smallest, the distance between them is in the same straight line as the V-shaped tip, and they are both directly below the track 4.

[0038] Embodiment 2

[0039] This embodiment is an improved scheme based on embodiment 1, and the main structure is the same as that of embodiment 1. The improvement lies in that, as Figure 7 As shown in the figure, the track 4 comprises a surrounding section 404 concentric with the lifting reel 3 and surrounding the outer side of the lifting reel 3, and a straight section 403 passing directly above the V-shaped tip part. The surrounding section 404 is annular, and the distance from the outer side wall of the lifting reel 3 is determined according to the size of the self-propelled trolley 401, that is, the end of the strip steel 6 clamped by the mechanical gripper 402 below the self-propelled trolley 401 can be in a certain curved state and always in close contact with the side wall of the lifting reel 3 during the running of the self-propelled trolley 401 along the surrounding section 404. When the mechanical gripper 402 moving along the straight section 403 passes through the V-shaped tip part, it clamps the end of the strip steel 6. When it moves to the front end of the straight section 403, the end of the strip steel 6 avoids the center of the lifting reel 3 and contacts the side wall of the lifting reel 3, and when it runs around the surrounding section 404 with the self-propelled trolley 401, it deforms tightly against the side wall of the lifting reel 3, and then the end of the strip steel 6 is automatically clamped into the clamping groove 302 when it encounters the clamping groove 302.

[0040] In this embodiment, as Figure 7As shown, the end of the surrounding section 404 and the end of the straight section 403 are connected by a rotating section 405. The surrounding section 404 is an arc with a central angle of at least 200°, generally 200-300°. At this time, there are two slots 302, which are symmetrically distributed. That is, the line connecting the two slots 302 passes through the center of the lifting drum 3. The rotating section 405 can be in the same horizontal plane as the surrounding section 404 and the straight section 403, or it can be higher than the horizontal plane formed by the surrounding section 404 and the straight section 403, and then gradually lowered to the same position as the plane, so that the self-propelled trolley 401 can return to the initial position on the straight section 403. This initial position is generally located on the straight section 403 at the part corresponding to the V-shaped tip.

[0041] Example 3

[0042] This embodiment is an improved version based on embodiment 1. Its main structure is the same as that of embodiment 1, but the improvement lies in: [The following is a more detailed description of the improvement.] Figure 3 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, the winding table 1 has a cylindrical cavity at its center, meaning the winding table 1 is a ring-shaped structure with a hollow center. The bottom is supported by several rotary bearing structures, such as ball bearings and tracks, allowing the winding table 1 to rotate around its center. Figure 4 As shown, the lifting drum 3 is disposed within the cylindrical cavity and is driven by the lifting structure 201 at its bottom to extend to the surface of the winding table 1 or to retract completely into the cylindrical cavity. When the lifting drum 3 extends to its limit position, it can connect with the winding table 1 and rotate synchronously with it. The lifting structure 201 can be a hydraulically driven lifting rod, a motor-driven lifting screw, or other similar lifting structures, the purpose of which is to drive the lifting drum 3 as a whole to move up and down.

[0043] In this embodiment, as Figure 4 , Figure 5 and Figure 6 As shown, the lifting drum 3 is fixedly connected to the lifting structure 201 via a rotary mechanism 2. The rotary mechanism 2 includes a fixed part 203 and a rotating part 202 that can rotate relative to each other. Both the fixed part 203 and the rotating part 202 are disc structures, but have a certain thickness. The bottom surface of the fixed part 203 is fixedly connected to the lifting structure 201. For example, when the lifting structure 201 uses a motor-driven lifting screw, the bottom surface of the fixed part 203 is welded and fixed to the top end of the lifting screw. The rotating part 202 is rotatably positioned above the fixed part 203 via a central rotary shaft 204. In this case, to facilitate the stability of the rotation of the rotating part 202, balls can be set in the gap between the rotating part 202 and the fixed part 203. These balls roll in their specific annular track.

[0044] In this embodiment, as Figure 4 , Figure 5 and Figure 6 As shown, the sidewall of the rotary mechanism 2 is provided with multiple locking mechanisms. These locking mechanisms are evenly arranged around the side of the rotating part 202, and the number is generally 4-8. Each locking mechanism includes a retaining strip 205 that is slidably disposed in a countersunk hole on the sidewall of the rotating part 202. The countersunk hole is a horizontal hole opened on the sidewall of the rotating part 202, and its axis is in the radial direction of the rotating part 202. The retaining strip 205 can be rectangular or cylindrical, but is generally cylindrical. Its size is slightly smaller than the inner diameter of the countersunk hole to facilitate free sliding. One end of the retaining strip 205 is fixed to a compression spring 206 disposed in the countersunk hole, and the other end is an inclined slope 207. The inclined slope 207 is downward and inward from the end of the retaining strip 205. A locking hole 102 is formed by cutting away a piece of material. The inner wall of the cylindrical cavity of the winding table 1 is provided with a locking hole 102 located on the lifting trajectory of the clamping bar 205. The lower side of the entrance of the locking hole 102 forms a downward sloping surface, and the slope of the sloping surface matches the inclined slope 207. The depth of the locking hole 102 is generally not less than half the length of the clamping bar 205 when the compression spring 206 extends. During the upward movement of the clamping bar 205, it can be pushed by the compression spring 206 to engage with the locking hole 102, thereby locking the rotating part 202 with the winding table 1. Alternatively, during the downward movement of the clamping bar 205, the inclined slope 207 of the clamping bar 205 can slide out of the locking hole 102, thereby separating the rotating part 202 from the winding table 1.

Claims

1. A hot-rolled strip steel coiling platform, comprising a coiling table (1) located in front of a conveyor roller (7), the edge of the coiling table (1) being provided with a toothed ring, which meshes with the toothed ring on the edge of a drive wheel (101) provided on one side of the coiling table (1), a lifting drum (3) being provided at the center of the coiling table (1) capable of descending and extending from the surface of the coiling table (1), and the lifting drum (3) being able to rotate synchronously with the coiling table (1) after extending from the coiling table (1), and at least one slot (302) for locking the end of the strip steel (6) being provided on the lifting drum (3) along its height direction, characterized in that: A strip coil transfer roller (701) is provided on one side of the winding table (1). A track (4) and a self-propelled trolley (401) moving along the track (4) are provided above the lifting drum (3). A mechanical claw (402) for clamping and releasing the end of the strip (6) is provided below the self-propelled trolley (401). Swinging components (5) are symmetrically arranged on both sides between the transfer roller (7) and the winding table (1). The two swinging components (5) are arranged in a V-shape, and the two swinging components (5) periodically open and close to adjust the end of the strip (6) to the V-shaped tip, so that the self-propelled trolley (401) drives the mechanical claw (402) to the V-shaped tip to grab the end of the strip (6) and move along the track (4) to the lifting drum (3) to be inserted into the slot (302).

2. The hot-rolled strip steel coiling platform according to claim 1, characterized in that: The track (4) includes a surrounding section (404) concentric with the lifting drum (3) and surrounding its outer side, and a straight section (403) passing directly above the V-shaped tip. The mechanical claw (402) moving with the self-propelled trolley (401) clamps the end of the strip (6) when it passes the V-shaped tip on the straight section (403). When it moves to the front end of the straight section (403), the end of the strip (6) avoids the center of the lifting drum (3) and contacts its side wall. When the self-propelled trolley (401) moves around the surrounding section (404) with the surrounding section (404), it deforms against the side wall of the lifting drum (3) and then automatically enters the slot (302) after encountering the slot (302).

3. The hot-rolled strip steel coiling platform according to claim 2, characterized in that: The end of the circumferential section (404) is connected to the end of the straight section (403) via a rotary section (405).

4. The hot-rolled strip steel coiling platform according to claim 1, characterized in that: The lifting drum (3) includes a drum body (301), and at least one slot (302) is provided on the drum body (301) along the axial direction of the drum body (301) and penetrates the top and bottom of the drum body (301).

5. A hot-rolled strip steel coiling platform according to claim 1, characterized in that: The swing assembly (5) includes a column (503) and a swing plate (502) that can rotate around the column (503), and the swing plate (502) is driven by the extension and retraction of the telescopic cylinder (501) to swing around the column (503).

6. The hot-rolled strip steel coiling platform according to claim 1, characterized in that: The winding table (1) has a cylindrical cavity at its center. The lifting drum (3) is located in the cylindrical cavity and is driven by the lifting structure (201) at its bottom to extend to the surface of the winding table (1) or retract completely into the cylindrical cavity. After the lifting drum (3) extends to its limit position, it can connect with the winding table (1) and rotate synchronously with the winding table (1).

7. A hot-rolled strip steel coiling platform according to claim 6, characterized in that: The lifting drum (3) is fixedly connected to the lifting structure (201) via a rotary mechanism (2). The rotary mechanism (2) includes a fixed part (203) and a rotating part (202) that can rotate relative to each other. The bottom surface of the fixed part (203) is fixedly connected to the lifting structure (201), and the rotating part (202) is rotatably disposed above the fixed part (203) via a central rotary shaft (204).

8. A hot-rolled strip steel coiling platform according to claim 7, characterized in that: The rotating mechanism (2) has multiple locking mechanisms arranged around its sidewall. Each locking mechanism includes a locking strip (205) that is slidably disposed in a countersunk hole on the sidewall of the rotating part (202). One end of the locking strip (205) is fixed to a compression spring (206) disposed in the countersunk hole, and the other end is an inclined slope (207). A locking hole (102) is provided on the inner wall of the cylindrical cavity of the winding table (1) along the lifting trajectory of the locking strip (205). During the upward movement of the locking strip (205), it can be driven by the compression spring (206) to engage with the locking hole (102) to lock the rotating part (202) and the winding table (1). Alternatively, during the downward movement of the locking strip (205), the inclined slope (207) of the locking strip (205) can slide out of the locking hole (102) to separate the rotating part (202) from the winding table (1).

Images