Lifting appliance of loading, unloading and stacking equipment
By designing the lifting device structure, the automatic unhooking, horizontal rotation, and hook-flipping functions of the lifting device are realized, which solves the problem of complex operation in the existing technology, improves lifting efficiency, and protects the electric push rod.
Patent Information
- Application Number
- CN202423161306.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing lifting equipment cannot simultaneously achieve automatic unhooking, horizontal rotation, and automatic hook flipping functions, and the equipment itself is quite heavy, resulting in complex lifting operations and low efficiency.
A lifting device structure was designed, including a boom connector, a bracket, a motor, a slewing support frame, a transition bracket, and a main beam frame. The automatic unhooking and flipping of the hook are achieved through an electric push rod and a transmission unit. The electric push rod is protected by a limit spring and a long-hole connecting rod. The bracket pins form a cross shaft structure to realize the swinging and rotation of the lifting device.
It enables automatic unhooking, horizontal rotation, and hook flipping of the lifting device, simplifying operation, improving lifting efficiency, and protecting the electric push rod from excessive tension.
Smart Images
Figure CN223495944U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loading, unloading, and palletizing equipment technology, and specifically to a lifting device for loading, unloading, and palletizing equipment. Background Technology
[0002] For port import and export tonnes, special equipment is required for lifting, stacking and other operations when the tonnes are transferred or stored. The requirements for such lifting equipment are: low self-weight, horizontal rotation capability, automatic hook tipping, hook tipping operated by a driver, relatively stable hook without swinging, rope guard device, simple and reliable structure, and low cost.
[0003] Currently, there are no lifting devices in port equipment that fully meet this requirement. The most common type on the market is the gravity-release hook, which can automatically release the hook. However, this hook has the limitation of releasing the hook immediately after the ton bag is unloaded. When you want to reposition the ton bag, you need to re-hook it, which happens frequently in actual operations, especially when stacking ton bags, making the operation particularly cumbersome. Automatic release lifting devices use a motor as a power source, directly driving the hook rotation with a shaft. This type of device cannot rotate as a whole, has a complex structure, is heavy, and requires hydraulic power. Single-unit electrically driven release hooks can achieve automatic release. These hooks can be installed as a unit on a beam for ton bag operations, but they are costly, and the hook head swings freely after installation, which is not conducive to hooking operations.
[0004] In summary, existing lifting equipment cannot simultaneously achieve automatic unhooking, horizontal rotation, and automatic hook flipping functions. Furthermore, the equipment itself is quite heavy, which makes lifting operations complex and leads to low lifting efficiency. Utility Model Content
[0005] This utility model addresses the problem that existing lifting devices cannot simultaneously achieve automatic unhooking, horizontal rotation, and automatic hook flipping functions, and that the lifting devices themselves are heavy, resulting in complex lifting operations and low lifting efficiency. Therefore, this utility model proposes a lifting device for loading, unloading, and stacking equipment.
[0006] The lifting device of this utility model for loading, unloading and stacking equipment comprises a boom connector 1, a bracket pin 2, a bracket 3, a motor 4, a slewing support frame 5, a transition bracket 6, a main beam frame 7, a long connecting rod 8, a hook 9, a hook baffle 10, a longitudinal connecting rod 11, a push rod base 12, an electric push rod 13, a bearing seat 16, a hook shaft 18 and a transmission unit.
[0007] The top of the support frame 3 is hinged to the bottom of the boom connector 1 via the support pin 2. A motor 4 is installed inside the support frame 3. The output end of the motor 4 passes through the bottom surface of the support frame 3 and is fixedly connected to the center of the upper surface of the slewing support frame 5. The bottom surface of the slewing support frame 5 is fixedly connected to the middle of the main beam frame 7 via a transition support 6. n hooks 9 are evenly distributed along the length direction at both ends of the bottom surface of the main beam frame 7, where n is a positive integer. The top of each hook 9 is rotatably connected to the side wall of the main beam frame 7 via a hook shaft 18. A hook baffle 10 is provided on one side of each hook 9 on the bottom surface of the main beam frame 7. The main beam frame 7 is further reinforced with a hook baffle 10 along its length direction. There are m longitudinal connecting rods 11 evenly arranged, where m is a positive integer. The end of each longitudinal connecting rod 11 is rotatably connected to the inner wall of the main beam frame 7 through a bearing seat 16. A long connecting rod 8 is provided between every two longitudinal connecting rods 11, and the end of the long connecting rod 8 is hinged to the outer circumferential surface of the longitudinal connecting rod 11 through a hinge connection assembly. A transmission unit is provided at each hook 9 on the bottom surface of the main beam frame 7. An electric push rod 13 is provided on the inner wall of one end of the main beam frame 7, and the electric push rod 13 is fixed to the inner wall of the main beam frame 7 through a push rod base 12. The output end of the electric push rod 13 is hinged to the outer circumferential surface of one of the longitudinal connecting rods 11.
[0008] Furthermore, the transmission unit includes a limiting spring 14, a long hole connecting rod 15, and a slider; one end of the long hole connecting rod 15 is hinged to the outer surface of the hook shaft 18, a slider is provided inside the long hole of the long hole connecting rod 15, the end face of the slider is hinged to the outer circumferential surface of the longitudinal connecting rod 11, a fixed shaft is provided on the end face of the long hole connecting rod 15, and a limiting spring 14 is provided between the fixed shaft and the other end face of the slider.
[0009] Furthermore, the hook shaft 18 is integrally formed with the hook 9;
[0010] Furthermore, each hook 9 on the main beam frame 7 is provided with a limiting shaft 17 on one side, and the limiting shaft 17 is fixed on the inner wall of the main beam frame 7.
[0011] Furthermore, the tail end of the electric push rod 13 is hinged to one end of the push rod base 12;
[0012] Furthermore, the number n of hooks 9 on one side of the bottom surface of the main beam frame 7 is equal to the number m of longitudinal connecting rods 11, that is, m = n;
[0013] Furthermore, the number n of hooks 9 on one side of the bottom surface of the main beam frame 7 is 4≤n≤10;
[0014] Furthermore, during use, the gripper is connected to the matching loading and unloading machine, palletizing crane, and other equipment via the boom connector 1; the cross shaft structure is formed by the bracket pin 2 and the connecting pin on the boom connector 1, which can realize the forward, backward, left, and right swing of the gripper; the bracket 3, motor 4, slewing support frame 5, and transition bracket 6 constitute the slewing mechanism, and the transition bracket 6 and the parts below it can rotate horizontally around the slewing support frame 5;
[0015] The transition bracket 6 and the main beam frame 7 are connected by a pin to form a whole; when the electric push rod 13 extends, one of the longitudinal connecting rods 11 rotates, which drives the long hole connecting rod 15 to move. The long hole connecting rod 15 drives the serial hook shaft 18. The hook 9 is integrated with the hook shaft 18 and can rotate on the main beam frame 7. The rotation of the hook shaft 18 drives the hook 9 to perform a flipping motion, so that the sling hanging on the hook will automatically slide off.
[0016] The hook 9 is integrally set with the hook shaft 18 and can rotate on the main beam frame 7. When rotating in the B direction, it is limited by the limiting shaft 17. If there is no limiting, the rotation angle of the hook 9 will be controlled by the reduction of the electric push rod 13 when the hook continues to rotate, so as to avoid it being subjected to excessive pressure.
[0017] The hook rotates counterclockwise (direction A) due to the swing of the ton bag it's lifting. One end of the elongated connecting rod 15 is hinged to the outer surface of the hook shaft 18. A slider is located inside the elongated hole of the connecting rod 15, and the end face of the slider is hinged to the outer circumference of the longitudinal connecting rod 11. A fixed shaft is located on the end face of the connecting rod 15, and a limiting spring 14 is located between the fixed shaft and the other end face of the slider. Therefore, the longitudinal connecting rod 11 is only subjected to the tension of the spring, which is much smaller than the force generated by the swing of the ton bag. This prevents the electric push rod from receiving excessive tension, thus protecting it. During operation, the hook needs to be relatively stable for easy hooking; the spring then plays a role in stabilizing the hook.
[0018] Compared with the prior art, the present invention has the following advantages:
[0019] This utility model overcomes the shortcomings of the prior art by using a boom connector to connect to the matching loading and unloading machine, palletizing crane and other equipment; the cross shaft structure is formed by the support pin and the connecting pin on the boom connector, which can realize the forward, backward and left and right swing of the lifting device; the support, motor, slewing support frame and transition support constitute the slewing mechanism, and the transition support and the parts below it can realize horizontal rotation around the slewing support frame.
[0020] The system also employs a transition bracket and main beam frame connected by pins to form a single unit. When the electric push rod extends, one of the longitudinal connecting rods rotates, driving the long-hole connecting rod to move. The long-hole connecting rod drives the numbered hook shaft, which is integrally set with the hook shaft and can rotate on the main beam frame. The rotation of the hook shaft causes the hook to flip, causing the sling hanging on the hook to automatically slide off. Furthermore, multiple longitudinal connecting rods are evenly arranged along the length of the main beam frame, and the end of each longitudinal connecting rod is rotatably connected to the inner wall of the main beam frame through a bearing seat. A long connecting rod is provided between every two longitudinal connecting rods, and the end of the long connecting rod is hinged to the outer circumference of the longitudinal connecting rod through a hinged connection assembly. This allows for the synchronous flipping of all hooks on the main beam frame using a single power source. Using this type of lifting device, operation is simple and lifting efficiency is greatly improved. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the lifting device for loading, unloading, and palletizing equipment described in this utility model;
[0022] Figure 2 This is an isometric drawing of a lifting device for loading, unloading, and palletizing equipment as described in this utility model;
[0023] Figure 3 This is a bottom view of the lifting device for loading, unloading, and stacking equipment described in this utility model. Detailed Implementation
[0024] Specific implementation method one: Combining Figures 1 to 3 This embodiment describes a lifting device for loading, unloading, and stacking equipment, which comprises a boom connector 1, a support pin 2, a support 3, a motor 4, a slewing support frame 5, a transition support 6, a main beam frame 7, a long connecting rod 8, a hook 9, a hook baffle 10, a longitudinal connecting rod 11, a push rod base 12, an electric push rod 13, a bearing seat 16, a hook shaft 18, and a transmission unit.
[0025] The top of the support frame 3 is hinged to the bottom of the boom connector 1 via the support pin 2. A motor 4 is installed inside the support frame 3. The output end of the motor 4 passes through the bottom surface of the support frame 3 and is fixedly connected to the center of the upper surface of the slewing support frame 5. The bottom surface of the slewing support frame 5 is fixedly connected to the middle of the main beam frame 7 via a transition support 6. n hooks 9 are evenly distributed along the length direction at both ends of the bottom surface of the main beam frame 7, where n is a positive integer. The top of each hook 9 is rotatably connected to the side wall of the main beam frame 7 via a hook shaft 18. A hook baffle 10 is provided on one side of each hook 9 on the bottom surface of the main beam frame 7. The main beam frame 7 is further reinforced with a hook baffle 10 along its length direction. There are m longitudinal connecting rods 11 evenly arranged, where m is a positive integer. The end of each longitudinal connecting rod 11 is rotatably connected to the inner wall of the main beam frame 7 through a bearing seat 16. A long connecting rod 8 is provided between every two longitudinal connecting rods 11, and the end of the long connecting rod 8 is hinged to the outer circumferential surface of the longitudinal connecting rod 11 through a hinge connection assembly. A transmission unit is provided at each hook 9 on the bottom surface of the main beam frame 7. An electric push rod 13 is provided on the inner wall of one end of the main beam frame 7, and the electric push rod 13 is fixed to the inner wall of the main beam frame 7 through a push rod base 12. The output end of the electric push rod 13 is hinged to the outer circumferential surface of one of the longitudinal connecting rods 11.
[0026] In this specific embodiment, during use, the gripper is connected to the matching loading and unloading machine, palletizing crane, and other equipment via the boom connector 1; the cross shaft structure is formed by the bracket pin 2 and the connecting pin on the boom connector 1, which can realize the forward, backward, left, and right swing of the gripper; the bracket 3, motor 4, slewing support frame 5, and transition bracket 6 constitute the slewing mechanism, and the transition bracket 6 and the parts below it can rotate horizontally around the slewing support frame 5;
[0027] The transition bracket 6 and the main beam frame 7 are connected by a pin to form a whole; when the electric push rod 13 extends, one of the longitudinal connecting rods 11 rotates, which drives the long hole connecting rod 15 to move. The long hole connecting rod 15 drives the serial hook shaft 18. The hook 9 is integrated with the hook shaft 18 and can rotate on the main beam frame 7. The rotation of the hook shaft 18 drives the hook 9 to perform a flipping motion, so that the sling hanging on the hook will automatically slide off.
[0028] The hook 9 is integrally set with the hook shaft 18 and can rotate on the main beam frame 7. When rotating in the B direction, it is limited by the limiting shaft 17. If there is no limiting, the rotation angle of the hook 9 will be controlled by the reduction of the electric push rod 13 when the hook continues to rotate, so as to avoid it being subjected to excessive pressure.
[0029] The hook rotates counterclockwise (direction A) due to the swing of the ton bag it's lifting. One end of the elongated connecting rod 15 is hinged to the outer surface of the hook shaft 18. A slider is located inside the elongated hole of the connecting rod 15, and the end face of the slider is hinged to the outer circumference of the longitudinal connecting rod 11. A fixed shaft is located on the end face of the connecting rod 15, and a limiting spring 14 is located between the fixed shaft and the other end face of the slider. Therefore, the longitudinal connecting rod 11 is only subjected to the tension of the spring, which is much smaller than the force generated by the swing of the ton bag. This prevents the electric push rod from receiving excessive tension, thus protecting it. During operation, the hook needs to be relatively stable for easy hooking; the spring then plays a role in stabilizing the hook.
[0030] Specific Implementation Method Two: Combining Figures 1 to 3 This embodiment further defines the lifting device described in Specific Embodiment 1. The lifting device for loading, unloading, and stacking equipment described in this embodiment includes a limiting spring 14, a long-hole connecting rod 15, and a slider. One end of the long-hole connecting rod 15 is hinged to the outer surface of the hook shaft 18. A slider is provided inside the long hole of the long-hole connecting rod 15. The end face of the slider is hinged to the outer circumferential surface of the longitudinal connecting rod 11. A fixed shaft is provided on the end face of the long-hole connecting rod 15, and a limiting spring 14 is provided between the fixed shaft and the other end face of the slider.
[0031] In this specific embodiment, the end face of the long hole connecting rod 15 is provided with a fixed shaft, and a limiting spring 14 is provided between the fixed shaft and the other end face of the slider. Then the longitudinal connecting rod 11 is only subjected to the tension of the limiting spring 14. This force is much smaller than the force generated by the swing of the ton bag, thereby preventing the electric push rod from receiving excessive tension and playing a role in protecting the electric push rod.
[0032] Specific implementation method three: Combining Figures 1 to 3 This embodiment further defines the lifting device described in Specific Embodiment 1. The lifting device for loading, unloading, and stacking equipment described in this embodiment has the hook shaft 18 and the hook 9 integrally formed.
[0033] Specific implementation method four: Combination Figures 1 to 3 This embodiment further defines the lifting device described in Specific Embodiment 1. The lifting device for loading, unloading and stacking equipment described in this embodiment has a limiting shaft 17 on one side of each hook 9 on the main beam frame 7, and the limiting shaft 17 is fixed on the inner wall of the main beam frame 7.
[0034] In this specific embodiment, each hook 9 on the main beam frame 7 is provided with a limiting shaft 17 on one side, and the limiting shaft 17 is fixed on the inner wall of the main beam frame 7 to realize the function of limiting the rotation of the hook 9.
[0035] Specific Implementation Method Five: Combining Figures 1 to 3 This embodiment further defines the lifting device described in Specific Embodiment 1. In this embodiment, the lifting device for loading, unloading, and stacking equipment has the tail end of the electric push rod 13 hinged to one end of the push rod base 12.
[0036] Specific Implementation Method Six: Combination Figures 1 to 3 This embodiment further defines the lifting device described in Specific Embodiment 1. In this embodiment, the number n of the lifting hooks 9 on one side of the bottom surface of the main beam frame 7 is equal to the number m of the longitudinal connecting rods 11, i.e., m = n.
[0037] Specific implementation method seven: Combination Figures 1 to 3 This embodiment further defines the lifting device described in Specific Embodiment Six. In this embodiment, the number n of the lifting hooks 9 on one side of the bottom surface of the main beam frame 7 is 4≤n≤10.
[0038] Working principle
[0039] In use, the grab is connected to the matching loading and unloading machine, palletizing crane and other equipment by the boom connector 1; the cross shaft structure is formed by the bracket pin 2 and the connecting pin on the boom connector 1, which can realize the forward, backward and left and right swing of the grab; the bracket 3, motor 4, slewing support frame 5 and transition bracket 6 constitute the slewing mechanism, and the transition bracket 6 and the lower part of the components can rotate horizontally around the slewing support frame 5.
[0040] The transition bracket 6 and the main beam frame 7 are connected by a pin to form a whole; when the electric push rod 13 extends, one of the longitudinal connecting rods 11 rotates, which drives the long hole connecting rod 15 to move. The long hole connecting rod 15 drives the serial hook shaft 18. The hook 9 is integrated with the hook shaft 18 and can rotate on the main beam frame 7. The rotation of the hook shaft 18 drives the hook 9 to perform a flipping motion, so that the sling hanging on the hook will automatically slide off.
[0041] The hook 9 is integrally set with the hook shaft 18 and can rotate on the main beam frame 7. When rotating in the B direction, it is limited by the limiting shaft 17. If there is no limiting, the rotation angle of the hook 9 will be controlled by the reduction of the electric push rod 13 when the hook continues to rotate, so as to avoid it being subjected to excessive pressure.
[0042] The hook rotates counterclockwise (direction A) due to the swing of the ton bag it's lifting. One end of the elongated connecting rod 15 is hinged to the outer surface of the hook shaft 18. A slider is located inside the elongated hole of the connecting rod 15, and the end face of the slider is hinged to the outer circumference of the longitudinal connecting rod 11. A fixed shaft is located on the end face of the connecting rod 15, and a limiting spring 14 is located between the fixed shaft and the other end face of the slider. Therefore, the longitudinal connecting rod 11 only experiences the tension of the spring, which is much smaller than the force generated by the swing of the ton bag. This prevents the electric push rod from being subjected to excessive tension, thus protecting it. During operation, the hook needs to be relatively stable for easy hooking; the spring then plays a role in stabilizing the hook.
Claims
1. A lifting device for loading, unloading, and stacking equipment, characterized in that: It includes boom connector (1), bracket pin (2), bracket (3), motor (4), slewing support frame (5), transition bracket (6), main beam frame (7), long connecting rod (8), hook (9), hook baffle (10), longitudinal connecting rod (11), push rod base (12), electric push rod (13), bearing seat (16), hook shaft (18) and transmission unit; The top of the bracket (3) is hinged to the bottom of the boom connector (1) via the bracket pin (2). The bracket (3) is equipped with a motor (4). The output end of the motor (4) passes through the bottom surface of the bracket (3) and is fixedly connected to the center of the upper surface of the slewing support frame (5). The bottom surface of the slewing support frame (5) is fixedly connected to the middle of the main beam frame (7) via the transition bracket (6). The bottom surfaces of the main beam frame (7) are evenly provided with n hooks (9) along the length direction at both ends, where n is a positive integer. The top of the hooks (9) is rotatably connected to the side wall of the main beam frame (7) via the hook shaft (18). Each hook (9) on the bottom surface of the main beam frame (7) is provided with a hook baffle (10) on one side. The inside of the main beam frame (7) is along the length direction. There are m longitudinal connecting rods (11) evenly arranged along the length direction, where m is a positive integer. The end of each longitudinal connecting rod (11) is rotatably connected to the inner wall of the main beam frame (7) through a bearing seat (16). A long connecting rod (8) is provided between every two longitudinal connecting rods (11), and the end of the long connecting rod (8) is hinged to the outer circumferential surface of the longitudinal connecting rod (11) through a hinge connection assembly. A transmission unit is provided at each hook (9) on the bottom surface of the main beam frame (7). An electric push rod (13) is provided on the inner wall of one end of the main beam frame (7), and the electric push rod (13) is fixed to the inner wall of the main beam frame (7) through a push rod base (12). The output end of the electric push rod (13) is hinged to the outer circumferential surface of one of the longitudinal connecting rods (11).
2. The lifting device for loading, unloading, and palletizing equipment according to claim 1, characterized in that: The transmission unit includes a limiting spring (14), a long hole connecting rod (15), and a slider; one end of the long hole connecting rod (15) is hinged to the outer surface of the hook shaft (18), a slider is provided inside the long hole of the long hole connecting rod (15), the end face of the slider is hinged to the outer circumferential surface of the longitudinal connecting rod (11), a fixed shaft is provided on the end face of the long hole connecting rod (15), and a limiting spring (14) is provided between the fixed shaft and the other end face of the slider.
3. The lifting device for loading, unloading, and palletizing equipment according to claim 1, characterized in that: The hook shaft (18) and the hook (9) are integrally formed.
4. The lifting device for loading, unloading, and palletizing equipment according to claim 1, characterized in that: Each hook (9) on the main beam frame (7) is provided with a limiting shaft (17) on one side, and the limiting shaft (17) is fixed on the inner wall of the main beam frame (7).
5. The lifting device for loading, unloading, and palletizing equipment according to claim 1, characterized in that: The tail end of the electric push rod (13) is hinged to one end of the push rod base (12).
6. The lifting device for loading, unloading, and palletizing equipment according to claim 1, characterized in that: The number n of hooks (9) on one side of the bottom surface of the main beam frame (7) is equal to the number m of longitudinal connecting rods (11), that is, m = n.
7. The lifting device for loading, unloading, and palletizing equipment according to claim 6, characterized in that: The number of hooks (9) on one side of the bottom surface of the main beam frame (7) is n, 4≤n≤10.