Hoisting device for hot working of large ring forgings

Abstract

The invention relates to the technical field of crane lifting appliances, and particularly discloses a large ring forge piece hot working lifting device. A plurality of lifting hooks are arranged on a second lifting scaffold in the circumferential direction of the second lifting scaffold, are connected with a first lifting scaffold through chains and can slide in the radial direction of the second lifting scaffold, and upper guide wheels and lower guide wheels which are in rolling contact with the second lifting scaffold correspondingly are rotationally arranged on the lifting hooks; a control panel is coaxially and rotatably arranged at the lower end of the second hanging scaffold, driving surfaces matched with the multiple lifting hooks one to one are arranged on the periphery of the control panel, a limiting piece used for locking and unlocking the control panel is slidably arranged on the second hanging scaffold in the vertical direction, and a reset piece used for driving the control panel to reset is slidably arranged on the second hanging scaffold; when the upper end face of the workpiece abuts against the lower end face of the control panel, the limiting piece can be abutted upwards by the workpiece so that the limiting piece can unlock the control panel, and then when the first hanging scaffold moves upwards relative to the second hanging scaffold, the multiple lifting hooks can gather towards the middle to hook the workpiece. The annular workpiece hoisting device is beneficial to stable and convenient hoisting of annular workpieces.

Description

Technical Field

[0001] The invention relates to the technical field of crane hoisting equipment, and in particular to a large ring forging hot processing hoisting device. Background Art

[0002] Large ring forgings refer to annular metal parts formed on a ring rolling machine through hot rolling. They are typically characterized by a diameter of more than 5 meters and a weight of more than 300 tons. They are widely used in nuclear power, aerospace, shipbuilding and other fields. Since large ring forgings need to be frequently transferred between heating furnaces, forging presses, ring rolling machines and other equipment during processing, special hoists must be used for hot processing of large ring forgings. They are not only handling tools, but also core equipment to ensure process accuracy, production safety and economic benefits.

[0003] The Chinese patent with the announcement number CN111960248B discloses a large ring forging hot processing lifting device, including a top lifting ear frame, an intermediate crossbeam support frame, and a bottom hook; the top lifting ear frame includes a lifting ring, a hanging tube, and a lifting ear; the lifting ring is fixed to the upper part of the hanging tube, and more than three lifting ears are evenly distributed and fixed to the outer wall surface of the middle and lower part of the hanging tube; the intermediate crossbeam support frame includes a support ring, a crossbeam, an outer reinforcing rib, and an inner reinforcing rib; the support ring is an annular structure, and the crossbeam is a strip structure. More than three crossbeams are evenly distributed and fixed to the upper end surface of the support ring, and the projection of the crossbeam on the plane where the upper end surface of the support ring is located, one end of the crossbeam is in the annular area surrounded by the support ring, and the other end is outside the annular area surrounded by the support ring; at the inner and outer wall surfaces of the support ring below the crossbeam, respectively An outer reinforcing rib and an inner reinforcing rib are provided; one end of the outer reinforcing rib is fixedly connected to the outer wall surface of the support ring, and the upper end of the outer reinforcing rib is fixedly connected to the lower wall surface of the beam; one end of the inner reinforcing rib is fixedly connected to the inner wall surface of the support ring, and the upper end of the outer reinforcing rib is fixedly connected to the lower wall surface of the beam; more than three L-shaped hook blocks are evenly distributed and fixedly connected to the support ring, the upper end surface of the lower transverse structure of the L-shaped hook block is fixedly connected to the lower end surface of the support ring, and the side wall surface of the vertical structure of the L-shaped hook block close to the transverse structure side is fixedly connected to the outer wall surface of the support ring; the number of the lifting ear and the L-shaped hook block is the same, and the L-shaped hook block and the lifting ear are respectively connected one by one through a lifting chain; a lifting chain is provided on the beam outside the annular area surrounded by the support ring, one end of the lifting chain is connected to the beam, and the other end of the lifting chain is connected to the bottom hook.

[0004] During the implementation of the above technical solution, for ring forgings of different diameters, it is necessary to manually connect the bottom hooks to the corresponding holes on the beam one by one, and then manually hook the bottom hooks one by one under the ring forgings. This process is inconvenient to operate. Since the bottom hook is connected to the beam through a lifting chain, the bottom hook will shake during the process of manually hooking the bottom hooks one by one under the ring forgings, which is not conducive to the stable hooking of the bottom hook under the ring forgings. Summary of the invention

[0005] The invention provides a large ring forging hot processing hoisting device, aiming to solve the problem in the related art that it is difficult to hoist the ring workpiece stably and conveniently.

[0006] A large-scale ring forging hot processing lifting device comprises a coaxially arranged hanging plate 1 and a hanging plate 2, wherein a plurality of hooks are arranged on the hanging plate 2 along its circumference, the hooks are connected to the hanging plate 1 by chains and can slide in the radial direction of the hanging plate 2, and an upper guide wheel and a lower guide wheel are rotatably provided on the hooks, which are respectively in rolling contact with the hanging plate 2, and a control plate is coaxially rotatably provided at the lower end of the hanging plate 2, and the outer periphery of the control plate has a driving surface that matches with the plurality of hooks one by one, and a limit piece for locking and unlocking the control plate is slidably provided on the hanging plate 2 in a vertical direction, and a reset piece for driving the control plate to reset is slidably provided on the hanging plate 2; when the upper end face of the workpiece stops against the lower end face of the control plate, the limit piece can be stopped upward by the workpiece so that the limit piece unlocks the control plate, and then when the hanging plate 1 moves upward relative to the hanging plate 2, the plurality of hooks can gather toward the middle to hook the workpiece, and the hooks can drive the control plate to rotate; when the reset piece is pulled to move the reset piece in a direction away from the axis of the hanging plate 2, the limit piece can lock the control plate and the hook can reset.

[0007] The present invention can realize the clamping of the workpiece by controlling the up and down movement of the hanging plate. After the workpiece is hoisted into place, the hook can be reset by pulling the reset piece and the hook can be released from the clamping of the workpiece.

[0008] Preferably, a driving wheel that is in rolling contact with the driving surface is rotatably provided on the hook, so that when the hook moves toward the second axis of the hanging plate, it can smoothly drive the control panel to rotate.

[0009] Preferably, the upper guide wheel is in rolling contact with the upper end surface of the second hanging plate, and the lower guide wheel is in rolling contact with the lower end surface of the second hanging plate. The arrangement of the upper guide wheel and the lower guide wheel enables the hook to slide smoothly along the radial direction of the second hanging plate.

[0010] Preferably, a slide groove 1 for sliding of the hook is provided along its circumference on the hanging plate 2, the slide groove 1 extends radially along the hanging plate 2, the end of the slide groove 1 away from the axis of the hanging plate 2 is open, and a stopper is installed on the end of the slide groove 1 away from the axis of the hanging plate 2.

[0011] Preferably, the hook is L-shaped, and an auxiliary part for supporting the workpiece is rotatably provided on the hook through an elastic part.

[0012] Preferably, the hook includes a support part 1 and a connecting arm, and the auxiliary part is L-shaped. The auxiliary part includes a connecting rod cooperating with the connecting arm and a support part 2 cooperating with the support part 1. The setting of the auxiliary part is conducive to maintaining the stability of the workpiece during the lifting process.

[0013] Preferably, one end of the chain away from the hanging plate is connected to the top of the hook.

[0014] Preferably, the control panel is provided with a guide groove 1 which cooperates with the limit member, the limit member includes a limit rod 1 and a limit rod 2 which are arranged in parallel, the hanging plate 2 is provided with a through hole 1 for the sliding of the limit rod 1 and a through hole 2 which cooperates with the limit rod 2, the limit rod 1 is slidably connected to the guide groove 1, and the control panel is provided with a socket which cooperates with the through hole 2.

[0015] Preferably, the guide groove 1 is coaxial with the hanging plate 2, the length of the limit rod 1 is greater than that of the limit rod 2, when the limit rod 2 is inserted into the socket, the control panel is locked by the limit member, and when the limit rod 2 is disengaged upward from the socket, the control panel is unlocked by the limit member.

[0016] Preferably, the control panel is provided with a second guide groove, the second hanging plate is provided with a third guide groove for sliding of the reset member, the second guide groove and the third guide groove are staggered up and down, the reset member is slidably connected to the second guide groove, and through the cooperation between the reset member and the second guide groove and the third guide groove, when the reset member is pulled, the control panel can drive the hook to reset.

[0017] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: when the second hanging plate moves downward and makes the upper end surface of the workpiece stop against the lower end surface of the control plate, the control plate is unlocked by the limit piece, and then as the first hanging plate is slowly lifted upward, the multiple hooks can respectively gather toward the middle along the corresponding slide groove, so that the support part can move to the bottom of the workpiece, and as the first hanging plate continues to be slowly lifted upward, the connecting arm stops against the outer side surface of the workpiece, so the support part will move upward relative to the workpiece until it stops against the bottom of the workpiece. At this time, multiple auxiliary parts can all stop against the bottom of the workpiece, which is beneficial to maintain the workpiece in Stability during the lifting process, then as the lifting platform 1 continues to be slowly lifted upward, the hook can lift the workpiece; after the workpiece is lifted to the specified position, the lifting platform 1 is controlled to slowly fall a distance to make the support part 1 and the support part 2 completely disengage from the workpiece, and make the support part 2 away from the lower end surface of the workpiece, and then the hook ring is manually pulled through the auxiliary rod to move the reset part along the guide groove 3 to the end away from the axis of the lifting platform 2 and reset it. At this time, the limit part can be inserted into the through hole 2 and the socket under the action of its own weight, so that the limit part locks the control panel, and the operation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure on the hook of the present invention.

[0020] Figure 3 It is a schematic diagram of the coordination between the control panel and the second hanging plate of the present invention.

[0021] Figure 4 It is a schematic diagram of the second hanging plate of the present invention.

[0022] Figure 5 It is a schematic diagram of the cooperation between the limit rod 1, the control panel and the hanging plate 2 of the present invention.

[0023] Figure 6 It is a top view of the second hanging plate of the present invention.

[0024] Figure 7 It is a top view of the control panel of the present invention.

[0025] : Reference numerals: 10, hanging plate one; 20, hanging plate two; 201, slide groove one; 202, through hole one; 203, through hole two; 204, guide groove three; 21, limit member; 211, limit rod one; 212, limit rod two; 22, reset member; 221, hook ring; 23, block; 30, hook; 301, support part one; 302, connecting arm; 31, upper guide wheel; 32, lower guide wheel; 33, driving wheel; 34, auxiliary member; 340, elastic member one; 341, connecting rod; 342, support part two; 40, chain; 50, control panel; 501, driving surface; 502, guide groove one; 503, guide groove two; 504, socket; 51, mounting rod; 52, support wheel. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] refer to Figure 1-Figure 4 A large ring forging hot processing hoisting device comprises a coaxially arranged hanging plate 10, a hanging plate 20 and a control panel 50, the hanging plate 10 is connected to the hanging rope of the crane, and a plurality of hooks 30 are evenly arranged on the hanging plate 20 along its circumference, and the hooks 30 are connected to the hanging plate 10 through a chain 40 and can slide radially along the hanging plate 20. In this embodiment, a slide groove 201 for sliding the hook 30 is provided along its circumference on the hanging plate 20, and the slide groove 201 extends radially along the hanging plate 20, and the end of the slide groove 201 away from the axis of the hanging plate 20 is open, and the end of the slide groove 201 away from the axis of the hanging plate 20 is installed with a stopper 23, and the stopper 23 is used to limit the hook 30 to prevent the hook 30 from detaching from the hanging plate 20.

[0028] The hook 30 is L-shaped, and includes a support portion 301 and a connecting arm 302. The end of the chain 40 away from the suspension plate 10 is connected to the top of the connecting arm 302. The upper guide wheel 31, the lower guide wheel 32 and the driving wheel 33 are rotatably installed on the connecting arm 302. The upper guide wheel 31 is in rolling contact with the upper end surface of the suspension plate 20, and the lower guide wheel 32 is in rolling contact with the lower end surface of the suspension plate 20. The outer periphery of the control panel 50 has a driving surface 501 that matches the driving wheels 33 on the multiple hooks 30 one by one, and the driving wheel 33 is in rolling contact with the driving surface 501. With the assistance of the upper guide wheel 31, the lower guide wheel 32 and the driving wheel 33, the support portion 301 is in a horizontal state, and the hook 30 can slide stably along the radial direction of the suspension plate 20.

[0029] The hook 30 is provided with an auxiliary part 34 for supporting the workpiece by rotating through an elastic part 340. The elastic part 340 is a spring. The auxiliary part 34 is L-shaped. The auxiliary part 34 includes a connecting rod 341 matched with the connecting arm 302 and a supporting part 342 matched with the supporting part 301. The elastic part 340 is installed at one end of the connecting rod 341 away from the supporting part 342. The end of the elastic part 340 away from the connecting rod 341 is fixedly connected to the connecting arm 302. In the initial state, under the action of the elastic part 340, the supporting part 342 can protrude upward from the upper end surface of the supporting part 301. During the hot working process, since the surface of the workpiece is not completely flat Therefore, when the supporting parts 301 of multiple hooks 30 are hooked on the bottom of the workpiece, it cannot be guaranteed that the supporting parts 301 of each hook 30 will abut against the bottom of the workpiece. Therefore, during the process of lifting the workpiece, if only the supporting parts 301 of two hooks 30 abut against the bottom of the workpiece, the workpiece will shake during the lifting process, which is not conducive to the safe lifting. However, since the auxiliary part 34 is connected to the hook 30 through the elastic part 340, the supporting part 342 can protrude upward from the upper end surface of the supporting part 301, so that the auxiliary parts 34 on the hook 30 can abut against the bottom of the workpiece, which is beneficial to maintain the stability of the workpiece during the lifting process.

[0030] refer to Figure 2-Figure 7 The control board 50 is coaxially rotatably connected to the hanging plate 20. In the present embodiment, the hanging plate 20 is annular, and a plurality of support assemblies are evenly installed along the circumference of the inner ring side of the control board 50. The support assemblies are located on the inner ring side of the hanging plate 20. The support assemblies include a mounting rod 51 fixedly connected to the control board 50 and a support wheel 52 rotatably provided on the mounting rod 51. The support wheel 52 is located above the hanging plate 20 and is in rolling contact with the upper end surface of the hanging plate 20.

[0031] A limit piece 21 for locking and unlocking the control panel 50 is provided on the hanging plate 20 for sliding in the vertical direction. A guide groove 502 cooperating with the limit piece 21 is provided on the control panel 50. The guide groove 502 is arc-shaped and coaxial with the hanging plate 20. The limit piece 21 includes a limit rod 211 and a limit rod 212 arranged in parallel. The length of the limit rod 211 is greater than that of the limit rod 212. A through hole 202 for sliding the limit rod 211 and a through hole 202 for sliding the limit rod 211 are provided on the hanging plate 20. The limiting rod 211 is slidably connected with the guide groove 502. When the control panel 50 is locked by the limiting member 21, the lower end of the limiting rod 211 extends downwardly out of the control panel 50. The control panel 50 is provided with a socket 504 which cooperates with the through hole 203. When the limiting rod 212 is inserted into the through hole 203 and the socket 504, the control panel 50 is locked by the limiting member 21. When the limiting rod 212 is disengaged upward from the socket 504, the control panel 50 is unlocked by the limiting member 21.

[0032] It can be understood that the limit rod 211 can be slidably connected to the hanging plate 20 through a spring, so that when the through hole 203 and the socket 504 correspond to each other up and down, the limit member 21 under the action of its own weight and the auxiliary downward pulling action of the spring, the limit rod 212 can be inserted into the through hole 203 and the socket 504, so that the limit member 21 can smoothly lock the control panel 50.

[0033] A reset member 22 for driving the control board 50 to reset is slidably provided on the hanging plate 20, a guide groove 200 is provided on the control board 50, a guide groove 3 204 for the reset member 22 to slide is provided on the hanging plate 20, the guide groove 200 503 and the guide groove 3 204 are staggered up and down, the reset member 22 is slidably connected to the guide groove 200 503, and a hook ring 221 is provided on the top of the reset member 22 for manually pulling the reset member 22.

[0034] Specific working principle: Reference Figure 1-Figure 7 In the initial state, the control panel 50 is locked by the limiting member 21, and the reset member 22 is located at the end of the guide groove 3 204 away from the axis of the hanging plate 2 20.

[0035] Then, the hanging plate 20 is controlled to move to the top of the annular workpiece and make the hanging plate 20 and the workpiece in an approximately coaxial state. Then, the hanging plate 20 is controlled to move downward and make the upper end surface of the workpiece stop against the lower end surface of the control plate 50. At this time, the limit rod 1 211 is pushed upward by the workpiece to make the limit rod 212 disengage upward from the socket 504, so that the control plate 50 is unlocked by the limit member 21. Then, as the hanging plate 10 is slowly lifted upward, the multiple hooks 30 can gather toward the middle along the corresponding slide groove 1 201 respectively, and the driving wheel 33 stops at the driving surface 501 to make the control plate 50 rotate counterclockwise (looking from top to bottom along the axial direction of the hanging plate 20), and the reset member 22 moves along the guide groove 3 204 to approach the hanging plate. The disk 20 moves in the direction of the axis, so that the support part 301 can move to the bottom of the workpiece. As the hanging plate 10 continues to be slowly lifted upward, the connecting arm 302 stops at the outer side of the workpiece. Therefore, the support part 301 will move upward relative to the workpiece until it stops at the bottom of the workpiece. At this time, multiple auxiliary parts 34 can stop at the bottom of the workpiece, which is beneficial to maintain the stability of the workpiece during the lifting process. Subsequently, as the hanging plate 10 continues to be slowly lifted upward, the hook 30 can lift the workpiece; after the workpiece is lifted, the distance between the upper end face of the workpiece and the lower end face of the control plate 50 is much greater than the length of the control plate 50 when the control plate 50 is locked by the limit member 21.

[0036] After the workpiece is hoisted to the designated position, the hanging plate 10 is controlled to slowly fall until the workpiece contacts the pad on the table at the designated position, and then the hanging plate 10 is controlled to slowly fall for a distance so that the support part 1 301 and the support part 2 342 are completely separated from the workpiece and the support part 2 342 is far away from the lower end surface of the workpiece. At this time, the distance between the upper end surface of the workpiece and the lower end surface of the control plate 50 is still greater than the lower end surface of the control plate 50 when the control plate 50 is locked by the limiter 21. 0, and then manually pull the hook ring 221 through the auxiliary rod to move the reset member 22 along the guide groove three 204 to the end away from the axis of the hanging plate two 20 and reset it. During this process, the hanging plate two 20 will move up a short distance relative to the hanging plate one 10. At this time, the limit member 21 can be inserted into the through hole two 203 and the socket 504 under the action of its own weight, so that the limit member 21 locks the control board 50. At this point, the lifting device is completely separated from the workpiece, and then the crane is controlled to move the lifting device away from the workpiece.

[0037] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A large ring forging hot working hoisting device, comprising a coaxially arranged hoisting plate 1 (10) and a coaxially arranged hoisting plate 2 (20), characterized in that: The second hanging plate (20) is provided with a plurality of hooks (30) along its circumference, the hooks (30) are connected to the first hanging plate (10) through chains (40) and can slide in the radial direction of the second hanging plate (20), the hooks (30) are rotatably provided with an upper guide wheel (31) and a lower guide wheel (32) respectively in rolling contact with the second hanging plate (20), the lower end of the second hanging plate (20) is provided with a control plate (50) for coaxial rotation, the outer periphery of the control plate (50) has a driving surface (501) that matches the plurality of hooks (30) one by one, the second hanging plate (20) is provided with a limiter (21) for locking and unlocking the control plate (50) in a sliding manner in a vertical direction, and the second hanging plate (20) is provided with a reset member (22) for driving the control plate (50) to reset; When the upper end surface of the workpiece abuts against the lower end surface of the control plate (50), the stopper (21) can be stopped upward by the workpiece, so that the stopper (21) unlocks the control plate (50), and then when the first hanging plate (10) moves upward relative to the second hanging plate (20), the plurality of hooks (30) can gather toward the middle to hook the workpiece, and the hooks (30) can drive the control plate (50) to rotate; When the reset member (22) is pulled to move the reset member (22) in a direction away from the axis of the second hanging plate (20), the limiting member (21) can lock the control panel (50) and the hanging hook (30) can be reset.

2. A large ring forging hot working hoisting device according to claim 1, characterized in that: The hook (30) is rotatably provided with a driving wheel (33) that is in rolling contact with the driving surface (501).

3. A large ring forging hot working hoisting device according to claim 1, characterized in that: The upper guide wheel (31) is in rolling contact with the upper end surface of the second hanging plate (20), and the lower guide wheel (32) is in rolling contact with the lower end surface of the second hanging plate (20).

4. A large ring forging hot working hoisting device according to claim 1, characterized in that: The hanging plate 2 (20) is provided with a slide groove 1 (201) for sliding the hook (30) along its circumference, the slide groove 1 (201) extends radially along the hanging plate 2 (20), the end of the slide groove 1 (201) away from the axis of the hanging plate 2 (20) is open, and the end of the slide groove 1 (201) away from the axis of the hanging plate 2 (20) is installed with a stopper (23).

5. The large ring forging hot working hoisting device according to claim 1 is characterized in that: The hook (30) is L-shaped, and an auxiliary part (34) for supporting a workpiece is rotatably provided on the hook (30) via an elastic part 1 (340).

6. A large ring forging hot working hoisting device according to claim 5, characterized in that: The hook (30) comprises a first support portion (301) and a connecting arm (302); the auxiliary component (34) is L-shaped; the auxiliary component (34) comprises a connecting rod (341) matched with the connecting arm (302) and a second support portion (342) matched with the first support portion (301).

7. A large ring forging hot working hoisting device according to claim 1, characterized in that: One end of the chain (40) away from the hanging plate (10) is connected to the top of the hanging hook (30).

8. The large ring forging hot working hoisting device according to claim 1, characterized in that: The control panel (50) is provided with a guide groove (502) that cooperates with the limit member (21); the limit member (21) includes a limit rod (211) and a limit rod (212) that are arranged in parallel; the hanging plate (20) is provided with a through hole (202) for sliding of the limit rod (211) and a through hole (203) that cooperates with the limit rod (212); the limit rod (211) is slidably connected to the guide groove (502); and the control panel (50) is provided with a socket (504) that cooperates with the through hole (203).

9. A large ring forging hot working hoisting device according to claim 8, characterized in that: The guide groove 1 (502) is coaxial with the hanging plate 2 (20); the length of the limit rod 1 (211) is greater than that of the limit rod 2 (212); when the limit rod 2 (212) is inserted into the insertion hole (504), the control panel (50) is locked by the limit member (21); when the limit rod 2 (212) is disengaged upward from the insertion hole (504), the control panel (50) is unlocked by the limit member (21).

10. A large ring forging hot working hoisting device according to claim 1, characterized in that: The control plate (50) is provided with a second guide groove (503), the second hanging plate (20) is provided with a third guide groove (204) for sliding the reset member (22), the second guide groove (503) and the third guide groove (204) are staggered up and down, and the reset member (22) is slidably connected to the second guide groove (503).

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