A hook for a circular ring forging post-travel crane
By designing an automated crane hook for ring forging, the problem of time-consuming and labor-intensive separation of the hook from the ring component after forging is solved. This achieves automated fixing and separation of the ring, reduces manual labor intensity, and improves transfer efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东盛世荣升机械制造有限公司
- Filing Date
- 2025-09-28
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, the separation of the hook from the ring after forging requires manual operation, which is time-consuming, labor-intensive, and has low safety.
A hook for a crane after ring forging was designed. By using components such as fixed frames, clamping blocks, swing arms and drive wheels that are slidably set on both sides of the bridge frame, the hook and the ring can be automatically fixed and separated. With the cooperation of electric hoist and trolley, the horizontal, vertical and longitudinal positions of the ring can be adjusted. The movement of the clamping blocks can adapt to different radial thicknesses of the ring.
It achieves automated fixing and separation of the rings, reduces manual labor intensity, improves transfer efficiency, and ensures operational safety and adaptability.
Smart Images
Figure CN224547891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cranes, specifically a crane hook made of a forged ring. Background Technology
[0002] Forged ring parts (especially large parts) need to be transported by crane to the cooling area, heat treatment workshop, or stacked in the designated storage area to prevent deformation due to their own weight and reduce the intensity of manual labor.
[0003] Lifting hooks are essential components in the loading, unloading, hoisting, and installation of ring components. Currently, when it is necessary to remove the ring from the hook, it is required to manually separate the hook from the ring, which is time-consuming, labor-intensive, and unsafe. Utility Model Content
[0004] The purpose of this utility model is to provide a crane hook for forging circular rings, which solves the problem of manually separating and installing the hook from the circular ring, improves the efficiency of transferring forged circular rings, and reduces the labor intensity of manual labor.
[0005] To achieve the above objectives, the utility model employs the following technical solution: A forged ring crane hook includes a fixed frame slidably disposed on both sides of a bridge frame, with a steel wire rope between the fixed frame and the bridge frame. The fixed frame is symmetrically provided with a clamping block, a first swing arm, and a second swing arm. The two ends of the first swing arm are rotatably connected to the clamping block and the fixed frame, respectively. The two ends of the second swing arm are rotatably connected to the clamping block and the fixed frame, respectively. A latch is rotatably connected to the clamping block. The hook also includes a drive wheel for driving the first swing arm to swing on the fixed frame and a roller for driving the latch to rotate on the clamping block.
[0006] Furthermore, one of the first swing arms is provided with a first gear at its end, and the other first swing arm is provided with a second gear that meshes with the first gear.
[0007] Furthermore, a rotating shaft is rotatably connected to the fixed frame. One end of the rotating shaft is provided with a third gear that meshes with the second gear, and the other end of the rotating shaft is provided with a driven wheel. The driving wheel drives the driven wheel to rotate on the fixed frame. A drive motor is provided on the fixed frame, and the movable end of the drive motor is connected to the drive wheel.
[0008] Furthermore, the driven wheel is provided with a fourth gear, and a cam that meshes with the fourth gear is provided on one side of the drive wheel.
[0009] Furthermore, the driven wheel is provided with limiting grooves on both sides, and the driving wheel is provided with a limiting block on the other side that contacts the limiting grooves.
[0010] Furthermore, the fixed frame is equipped with a telescopic cylinder, the movable end of which is rotatably connected to the roller, the end of the latch is provided with an inclined surface that contacts the roller, and a torsion spring is provided between the latch and the fixed frame.
[0011] Furthermore, the hinge points of the first swing arm with the fixed frame and the clamping block, and the hinge points of the second swing arm with the fixed frame and the clamping block, form a parallelogram.
[0012] Furthermore, the clamping block is provided with a friction part, which is made of an elastic material.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. When it is necessary to move the ring, the trolley drives the electric hoist to slide on the bridge frame, and the trolley drives the bridge frame to slide in the fixed track, changing the lateral and longitudinal positions of the hooks. This moves the two hooks to the two sides of the ring. The electric hoist on the bridge frame controls the extension and retraction of the wire rope, changing the vertical position of the hooks and causing them to move down. At the same time, the roller drives the lock to rotate on the clamping block, preventing the lock from contacting the ring until the lock passes through the ring. At this point, the two clamping blocks move to the two sides of the ring. The drive wheel drives the first swing arm to rotate, and the second swing arm limits the clamping blocks, causing the two clamping blocks to move on the fixed frame. This slightly changes the distance between the two clamping blocks, so that the two clamping blocks contact the inner and outer sides of the ring respectively, initially fixing the ring to the hook. Then, the roller drives the lock to rotate in the opposite direction on the fixed frame, resetting the lock. Finally, the hook is pulled up, causing the ring to move down and contact the lock, thus fixing the ring to the hook. 2. The extension and retraction of the wire rope is controlled by an electric hoist installed on the cable tray, changing the vertical position of the hook to facilitate the lifting of the forged ring. The electric hoist is driven by a trolley to slide on the cable tray, and the cable tray 1 is driven by a trolley to slide within a fixed track, realizing the horizontal and vertical transportation of the ring. After the ring is moved to the designated position, the locking buckle is driven by the roller to rotate on the clamping block, so that the locking buckle is no longer in contact with the ring. At the same time, the first swing arm is driven by the drive wheel to rotate, causing the two clamping blocks to move slightly on the fixed frame, completely releasing the ring and separating the hook from the ring, thereby realizing the transfer of the ring. At the same time, there is no need for manual separation of the hook from the ring, further reducing the labor intensity of manual labor. 3. When the radial thickness of the ring changes, the first swing arm is driven to rotate by the drive wheel, and the second swing arm limits the clamping block, causing the two clamping blocks to move on the fixed frame, changing the distance between the two clamping blocks to adapt to the different radial thicknesses of the ring. Attached Figure Description
[0014] Appendix Figure 1 This is a structural schematic diagram of the fixing frame of this utility model.
[0015] Appendix Figure 2 This is a schematic diagram of the clamping block of this utility model.
[0016] Appendix Figure 3 This is a schematic diagram of the structure of the first gear of this utility model.
[0017] Appendix Figure 4 This is an appendix to the utility model Figure 3 A magnified view of part A in the middle.
[0018] Appendix Figure 5 This is a schematic diagram of the drive wheel of this utility model.
[0019] The labels shown in the attached diagram: 1. Cable tray; 2. Fixing frame; 3. Wire rope; 4. Clamping block; 5. First swing arm; 6. Second swing arm; 7. Lock; 8. Drive wheel; 9. Roller; 10. First gear; 11. Second gear; 12. Rotating shaft; 13. Third gear; 14. Driven wheel; 15. Drive motor; 16. Fourth gear; 17. Cam; 18. Limiting groove; 19. Limiting block; 20. Telescopic cylinder; 21. Inclined surface; 22. Torsion spring; 23. Friction part. Detailed Implementation
[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0021] This utility model provides a forged circular ring crane hook, such as... Figures 1-3As shown, the system includes fixed frames 2 slidably mounted on both sides of the cable tray 1. A steel wire rope 3 is provided between the fixed frame 2 and the cable tray 1. The extension and retraction of the steel wire rope 3 is controlled by an electric hoist mounted on the cable tray 1, changing the vertical position of the hook to facilitate the lifting of the forged ring. The electric hoist is driven by a trolley to slide on the cable tray 1, and the cable tray 1 is driven by a trolley to slide within a fixed track, realizing the transverse and longitudinal transportation of the ring. The fixed frame 2 is symmetrically equipped with clamping blocks 4, a first swing arm 5, and a second swing arm 6. The two ends of the first swing arm 5 are rotatably connected to the clamping block 4 and the fixing frame 2, respectively. The two ends of the second swing arm 6 are rotatably connected to the clamping block 4 and the fixing frame 2, respectively. A latch 7 is rotatably connected to the clamping block 4. The system also includes a drive wheel 8 that drives the first swing arm 5 to swing on the fixing frame 2, and a roller 9 that drives the latch 7 to rotate on the clamping block 4. When the hook moves down, the roller 9 drives the latch 7 to rotate on the clamping block 4, preventing the latch 7 from contacting the ring until the latch 7 passes through the ring. When the two clamping blocks 4 move to both sides of the ring, the first swing arm 5 is driven to rotate by the drive wheel 8, and the second swing arm 6 limits the clamping blocks 4, causing the two clamping blocks 4 to move on the fixed frame 2, slightly changing the distance between the two clamping blocks 4, so that the two clamping blocks 4 contact the inner and outer sides of the ring respectively, initially fixing the ring to the hook. Then, the locking buckle 7 is driven to rotate in the opposite direction on the fixed frame 2 by the roller 9, so that the locking buckle 7 is reset. Then, the hook is pulled upward, causing the ring to move downward and... The locking buckle 7 contacts the ring, thus fixing the ring to the hook. When the ring moves to the designated position, the locking buckle 7 is driven to rotate on the clamping block 4 by the roller 9, so that the locking buckle 7 is no longer in contact with the ring. At the same time, the first swing arm 5 is driven to rotate by the drive wheel 8, which causes the two clamping blocks 4 to move slightly on the fixed frame 2, completely releasing the ring and separating the hook from the ring, thereby realizing the transfer of the ring. At the same time, there is no need to manually separate the hook from the ring, further reducing the labor intensity of manual labor. When the radial thickness of the ring changes, the first swing arm 5 is driven to rotate by the drive wheel 8, and the second swing arm 6 limits the clamping block 4, causing the two clamping blocks 4 to move on the fixed frame 2, changing the distance between the two clamping blocks 4 to adapt to different radial thicknesses of the ring.
[0022] One of the first swing arms 5 has a first gear 10 at its end, and the other first swing arm 5 has a second gear 11 that meshes with the first gear 10. When the second gear 11 rotates, it will drive the first gear 10 to rotate, thereby driving the two clamping blocks 4 to rotate in opposite directions at the same time. This simplifies the programming difficulty of driving the two clamping blocks 4 to move, and eliminates the need to set up two drive devices to drive the clamping blocks 4 to rotate separately, further reducing the cost of manufacturing the drive device and the space required for installation.
[0023] Preferred, such as Figure 2 and Figure 3 As shown, a rotating shaft 12 is rotatably connected to the fixed frame 2. One end of the rotating shaft 12 is provided with a third gear 13 that meshes with the second gear 11, and the other end of the rotating shaft 12 is provided with a driven wheel 14. The driving wheel 8 drives the driven wheel 14 to rotate on the fixed frame 2. A driving motor 15 is provided on the fixed frame 2. The movable end of the driving motor 15 is connected to the driving wheel 8. The driving motor 15 drives the driving wheel 8 to rotate, which in turn drives the driven wheel 14 to rotate. The torque transmitted through the rotating shaft 12 drives the third gear 13 to rotate. Since the third gear 13 meshes with the second gear 11, it drives the second gear 11 to rotate, thereby driving the two clamping blocks 4 to move on the fixed frame 2. By controlling the torque of the third gear 13 and the second gear 11, the transmission ratio between the driving wheel 8 and the first gear 10 and the second gear 11 is adjusted to better control the range of movement of the clamping blocks 4 and avoid excessive movement of the clamping blocks 4, which could cause them to collide with the ring.
[0024] Preferred, such as Figure 2 and Figure 3 As shown, the driven wheel 14 is provided with a fourth gear 16, and the drive wheel 8 is provided with a cam 17 on one side that meshes with the fourth gear 16. When the drive motor 15 drives the drive wheel 8 to rotate, the cam 17 meshes with the fourth gear 16, driving the driven wheel 14 to rotate on the fixed frame 2, thereby intermittently driving the clamping block 4 to move on the fixed frame 2, avoiding excessive movement of the clamping block 4, which would cause it to collide with the ring.
[0025] Preferred, such as Figure 5 As shown, the driven wheel 14 is provided with limiting grooves 18 on both sides, and the driving wheel 8 is provided with a limiting block 19 on the other side that contacts the limiting grooves 18. Each time the driving wheel 8 drives the driven wheel 14 to rotate, the limiting block 19 on the other side of the driving wheel 8 will re-enter the limiting groove 18 provided in the driven wheel 14. The resistance generated after the two come into contact restricts the driven wheel 14 from rotating on the fixed frame 2, preventing external forces from unintentionally changing the position of the clamping block 4, which would cause the clamping of the ring to fail, thereby ensuring the safety of the ring's movement process.
[0026] Preferred, such as Figure 4As shown, the fixed frame 2 is equipped with a telescopic cylinder 20. The movable end of the telescopic cylinder 20 is rotatably connected to the roller 9. The end of the latch 7 is provided with an inclined surface 21 that contacts the roller 9. A torsion spring 22 is provided between the latch 7 and the fixed frame 2. The telescopic cylinder 20 drives the roller 9 to move, and the roller 9 contacts the inclined surface 21 at the end of the latch 7. The component force generated after contact drives the latch 7 to rotate, so that the ring can pass smoothly through the latch 7, or remove the ring from the hook. Then, the telescopic cylinder 20 drives the roller 9 to reset, and under the action of the rebound force of the torsion spring 22, the latch 7 is reset, thus fixing the ring on the hook.
[0027] Preferred, such as Figure 2 As shown, the hinge points of the first swing arm 5 with the fixed frame 2 and the clamping block 4, and the hinge points of the second swing arm 6 with the fixed frame 2 and the clamping block 4 form a parallelogram. This parallelogram guides the movement of the two clamping blocks 4 on the fixed frame 2, ensuring that their clamping surfaces are always flush with the ring. This increases the contact area between the clamping blocks 4 and the ring, improves the effect of the hook in fixing the ring, and thus enhances the safety of transferring the ring.
[0028] Preferred, such as Figure 2 , Figure 3 and Figure 4 As shown, the clamping block 4 is provided with a friction part 23. The friction part 23 is made of an elastic material, specifically urethane. Through the elastic friction part 23, the ring is elastically clamped, which can adapt to the processing error of the ring and avoid the clamping block 4 from rigidly contacting the ring and causing damage to the ring.
[0029] Example 1 This utility model provides a forged circular ring crane hook, such as... Figure 1 , Figure 2 and Figure 3As shown, when the ring needs to be moved, the trolley drives the electric hoist to slide on the bridge frame 1, and the trolley drives the bridge frame 1 to slide within the fixed track, changing the lateral and longitudinal positions of the hooks. This causes the two hooks to move to the two sides of the ring respectively. The electric hoist on the bridge frame 1 controls the extension and retraction of the wire rope 3, changing the vertical position of the hooks and causing them to move downwards. At the same time, the roller 9 drives the locking buckle 7 to rotate on the clamping block 4, preventing the locking buckle 7 from contacting the ring until the locking buckle 7 passes through the ring. At this point, the two clamping blocks 4 move. From both sides of the ring, the first swing arm 5 is driven to rotate by the drive wheel 8, and the second swing arm 6 limits the clamping block 4, causing the two clamping blocks 4 to move on the fixed frame 2, slightly changing the distance between the two clamping blocks 4, so that the two clamping blocks 4 contact the inner and outer sides of the ring respectively, initially fixing the ring on the hook. Then, the locking buckle 7 is driven to rotate in the opposite direction on the fixed frame 2 by the roller 9, so that the locking buckle 7 is reset. Then, the hook is pulled up, so that the ring moves down and contacts the locking buckle 7, thereby fixing the ring on the hook. Next, the extension and retraction of the wire rope 3 is controlled by the electric hoist set on the cable tray 1 to change the vertical position of the hook, making it easier to lift the forged ring. The electric hoist is driven by the trolley to slide on the cable tray 1, and the cable tray 1 is driven by the trolley to slide within the fixed track, realizing the horizontal and vertical transportation of the ring. After the ring is moved to the designated position, the locking buckle 7 is driven by the roller 9 to rotate on the clamping block 4, so that the locking buckle 7 is no longer in contact with the ring. At the same time, the first swing arm 5 is driven by the drive wheel 8 to rotate, causing the two clamping blocks 4 to move slightly on the fixed frame 2, completely releasing the ring and separating the hook from the ring, thereby realizing the transfer of the ring. At the same time, there is no need for manual separation of the hook from the ring, further reducing the labor intensity of manual labor. When the radial thickness of the ring changes, the first swing arm 5 is driven to rotate by the drive wheel 8, and the second swing arm 6 limits the clamping block 4, causing the two clamping blocks 4 to move on the fixed frame 2, changing the distance between the two clamping blocks 4 to adapt to different radial thicknesses of the ring.
[0030] Example 2 Based on Example 1, such as Figure 2 , Figure 3 and Figure 5As shown, the drive motor 15 drives the drive wheel 8 to rotate, so that the cam 17 on one side of the drive wheel 8 meshes with the fourth gear 16, which drives the driven wheel 14 to rotate intermittently on the fixed frame 2. The torque is transmitted through the rotating shaft 12 to drive the third gear 13 to rotate. Since the third gear 13 meshes with the second gear 11, it drives the second gear 11 to rotate. Since the second gear 11 meshes with the first gear 10, it drives the first gear 10 to rotate, thereby driving the two clamping blocks 4 to rotate in opposite directions at the same time. This simplifies the programming difficulty of driving the two clamping blocks 4 to move, and eliminates the need to set up two drive devices to drive the clamping blocks 4 to rotate separately, further reducing the cost of manufacturing the drive device and the space required for installation. In addition, by controlling the torque of the third gear 13 and the second gear 11, the transmission ratio between the drive wheel 8 and the first gear 10 and the second gear 11 is adjusted, which better controls the range of movement of the clamping block 4 and avoids the clamping block 4 from moving too much, causing it to collide with the ring. In addition, each time the drive wheel 8 drives the driven wheel 14 to rotate, the limiting block 19 on the other side of the drive wheel 8 will re-enter the limiting groove 18 on the driven wheel 14. The resistance generated after the two come into contact restricts the driven wheel 14 from rotating on the fixed frame 2, preventing external forces from unintentionally changing the position of the clamping block 4 and causing the clamping of the ring to fail, thereby ensuring the safety of the ring's movement process.
[0031] Example 3 Based on Example 1, such as Figure 3 and Figure 4 As shown, when it is necessary to disassemble or fix the ring, the telescopic cylinder 20 drives the roller 9 to move, and the roller 9 contacts the inclined surface 21 at the end of the lock 7. The component force generated after contact drives the lock 7 to rotate, so that the ring can pass smoothly through the lock 7, or the ring can be removed from the hook. Then, the telescopic cylinder 20 drives the roller 9 to reset, and under the action of the torsion spring 22, the lock 7 is reset, thus fixing the ring on the hook.
Claims
1. A forged circular ring crane hook, comprising a fixed frame (2) slidably disposed on both sides of a bridge frame (1), wherein a wire rope (3) is provided between the fixed frame (2) and the bridge frame (1), characterized in that: The fixed frame (2) is symmetrically provided with a clamping block (4), a first swing arm (5) and a second swing arm (6). The two ends of the first swing arm (5) are rotatably connected to the clamping block (4) and the fixed frame (2) respectively. The two ends of the second swing arm (6) are rotatably connected to the clamping block (4) and the fixed frame (2) respectively. The clamping block (4) is rotatably connected with a latch (7). The fixed frame (2) also includes a drive wheel (8) that drives the first swing arm (5) to swing on the fixed frame (2) and a roller (9) that drives the latch (7) to rotate on the clamping block (4).
2. The forged ring crane hook according to claim 1, characterized in that: One of the first swing arms (5) has a first gear (10) at its end, and the other first swing arm (5) has a second gear (11) that meshes with the first gear (10).
3. A crane hook forged from a circular ring according to claim 2, characterized in that: A rotating shaft (12) is rotatably connected to the fixed frame (2). One end of the rotating shaft (12) is provided with a third gear (13) that meshes with the second gear (11). The other end of the rotating shaft (12) is provided with a driven wheel (14). The driving wheel (8) drives the driven wheel (14) to rotate on the fixed frame (2). A driving motor (15) is provided on the fixed frame (2). The movable end of the driving motor (15) is connected to the driving wheel (8).
4. A crane hook forged from a circular ring according to claim 3, characterized in that: The driven wheel (14) is provided with a fourth gear (16), and the drive wheel (8) is provided with a cam (17) on one side that meshes with the fourth gear (16).
5. A crane hook forged from a circular ring according to claim 4, characterized in that: The driven wheel (14) is provided with limiting grooves (18) on both sides, and the driving wheel (8) is provided with a limiting block (19) on the other side that contacts the limiting grooves (18).
6. A crane hook forged from a circular ring according to claim 1, characterized in that: The fixed frame (2) is provided with a telescopic cylinder (20), the movable end of the telescopic cylinder (20) is rotatably connected to the roller (9), the end of the latch (7) is provided with an inclined surface (21) that contacts the roller (9), and a torsion spring (22) is provided between the latch (7) and the fixed frame (2).
7. A crane hook forged from a circular ring according to claim 1, characterized in that: The hinge points of the first swing arm (5) with the fixed frame (2) and the clamping block (4) and the second swing arm (6) with the fixed frame (2) and the clamping block (4) form a parallelogram.
8. A crane hook forged from a circular ring according to claim 1, characterized in that: The clamping block (4) is provided with a friction part (23), which is made of an elastic material.