A smart electric chain crane and control system capable of withstanding high loads

Abstract

This invention relates to the field of crane technology, providing an intelligent electric chain crane and its control system capable of withstanding high loads. The crane body and a movable hook mechanism are included. The movable hook mechanism comprises a connecting seat and a rotating seat. The connecting seat is connected to the crane's lifting chain, and the rotating seat is rotatably connected to the connecting seat. A rotation drive device is connected inside the connecting seat, and the rotation drive device and the rotating seat are linked. A telescopic hook mechanism is connected to the rotating seat. This invention enables rapid and automatic alignment of the lifting lugs, improving hooking efficiency; it enables reliable self-locking and limiting of the lifting lugs, avoiding the risk of disengagement; and it enhances the support of the load-bearing bars, improving the overall load-bearing capacity.

Description

Technical Field

[0001] This invention relates to the field of crane technology, specifically to an intelligent electric chain crane capable of withstanding high loads and its control system. Background Technology

[0002] Cranes are essential equipment in factories, warehouses, logistics facilities, and port loading and unloading operations. Currently, most cranes used in the market employ traditional hook structures, which still present the following major problems in practical applications: First, the hook attachment method mainly relies on manual operation. For some tall goods, the lifting lugs are located at a high position, and the operator needs to climb to a high place to hook the hook onto the lifting lug and lock it, which is difficult and dangerous. Second, there is still room for improvement in the load-bearing capacity and structural safety of existing hooks. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention aims to provide an intelligent electric chain crane and its control system capable of withstanding high loads. To solve these problems, this invention employs the following technical solution: A smart electric chain crane capable of withstanding high loads includes a crane body and a movable hook mechanism. The movable hook mechanism includes a connecting seat and a rotating seat. The connecting seat is connected to the crane's lifting chain, and the rotating seat is rotatably connected to the connecting seat. A rotation drive device is connected inside the connecting seat, and the rotation drive device and the rotating seat are linked together. A telescopic hook mechanism is connected to the rotating seat.

[0004] Preferably, the telescopic hook mechanism includes a self-locking cylinder and a load-bearing bar. The self-locking cylinder is fixedly connected to the rotating base, and the load-bearing bar is slidably connected to the rotating base. The piston rod of the self-locking cylinder is fixedly connected to the load-bearing bar, and the load-bearing bar extends to the outside of the rotating base.

[0005] Preferably, a T-shaped rack is slidably connected to the load-bearing bar, the T-shaped rack is connected to the load-bearing bar through an elastic element, a locking bar is rotatably connected to the load-bearing bar, a gear is fixedly connected to the locking bar, the gear meshes with the horizontal section of the T-shaped rack, a permanent magnet is slidably connected to the vertical section of the T-shaped rack, a limit groove is opened on the load-bearing bar, and an electromagnet is fixedly connected to the inner wall of the limit groove.

[0006] Preferably, a displacement plate is slidably connected to the load-bearing bar, the displacement plate is connected to the load-bearing bar through an elastic element, the displacement plate has an arc-shaped groove, the depth of the arc-shaped groove gradually increases from top to bottom, a transmission bar is rotatably connected to the locking bar, the transmission bar is slidably connected to the inner wall of the arc-shaped groove, and a reinforcing bar mechanism is connected to the rotating base.

[0007] Preferably, the reinforcing bar mechanism includes a second gear and a reinforcing rack. The second gear is rotatably connected to the rotating base, and the reinforcing rack is slidably connected to the rotating base. The reinforcing rack extends to the outside of the rotating base, and the reinforcing rack meshes with the second gear. The load-bearing bar is provided with transmission teeth, and the load-bearing bar meshes with the second gear through the transmission teeth.

[0008] Preferably, the reinforcing rack is inclined, and the upper end of the reinforcing rack is planar.

[0009] Preferably, an electric wheel is rotatably connected to the crane body.

[0010] Preferably, the crane body is a double-chain type.

[0011] Preferably, the crane body is coated with anti-corrosion paint.

[0012] A high-load-bearing intelligent electric chain crane control system, based on the aforementioned high-load-bearing intelligent electric chain crane, includes a terminal system, a control system one, and a control system two. The control system one is mounted on the telescopic hook mechanism and includes a wireless module one and a control module one. The control system two is mounted on the crane body and includes a wireless module two and a control module two. The terminal system includes a wireless module three and a human-machine interaction module. Wireless modules one and two are wirelessly connected to wireless module three, respectively.

[0013] The present invention has the following beneficial effects: It enables rapid and automatic alignment of the lifting lugs, improving hooking efficiency; it ensures reliable self-locking and limiting of the lifting lugs, avoiding the risk of disengagement; and it enhances the support of the load-bearing strips, improving the overall load-bearing capacity. Attached Figure Description

[0014] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of an intelligent electric chain crane control system capable of withstanding high loads according to the present invention. Figure 2 This is a schematic diagram of the crane body structure of an intelligent electric chain crane capable of withstanding high loads according to the present invention. Figure 3 This is a schematic diagram of the movable hook mechanism of an intelligent electric chain crane capable of withstanding high loads according to the present invention. Figure 4 This is the present invention. Figure 3 Internal structure diagram of the transfer station; Figure 5This is a schematic diagram of the structure of the T-shaped rack, locking bar, and displacement plate in this invention; Figure 6 This is the present invention. Figure 5 Enlarged view of the lower vertical section of the T-shaped rack; Figure 7 This is a schematic diagram of the structure of the locking bar and displacement plate in this invention; Figure 8 This is a schematic diagram of the limiting groove and electromagnet in this invention.

[0016] Reference numerals in the attached diagram: 1. Connecting seat; 2. Rotary seat; 3. Self-locking cylinder; 4. Load-bearing bar; 5. T-shaped rack; 6. Elastic element one; 7. Locking bar; 8. Gear one; 9. Transmission bar; 10. Displacement plate; 11. Elastic element two; 12. Arc groove; 13. Gear two; 14. Reinforcing rack; 15. Permanent magnet; 16. Limiting groove; 17. Electromagnet; 18. Crane body. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the addition of "a," "b," "c," and "d" after the component names is for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connect," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] like Figures 2-8As shown, an intelligent electric chain crane capable of withstanding high loads includes a crane body 18 and a movable hook mechanism. The movable hook mechanism includes a connecting seat 1 and a rotating seat 2. The connecting seat 1 is connected to the crane's chain, and the rotating seat 2 is rotatably connected to the connecting seat 1. A rotation drive device is connected inside the connecting seat 1. The rotation drive device and the rotating seat 2 are linked together, and a telescopic hook mechanism is connected to the rotating seat 2.

[0021] The rotation drive can use an existing motor system, and the telescopic hook mechanism can extend and retract into the lifting lug of the cargo.

[0022] To further achieve better cargo connection and lifting effects, in a preferred embodiment of the present invention, the telescopic hook mechanism includes a self-locking cylinder 3 and a load-bearing bar 4. The self-locking cylinder 3 is fixedly connected to the rotating base 2, and the load-bearing bar 4 is slidably connected to the rotating base 2. The piston rod of the self-locking cylinder 3 is fixedly connected to the load-bearing bar 4, and the load-bearing bar 4 extends to the outside of the rotating base 2.

[0023] The self-locking cylinder 3 is a cylinder that automatically locks the piston rod after it stops running. The self-locking cylinder 3 is used to drive the load-bearing bar 4 to enter and exit the lifting lug.

[0024] Furthermore, a T-shaped rack 5 is slidably connected to the load-bearing bar 4. The T-shaped rack 5 is connected to the load-bearing bar 4 through an elastic element 6. A locking bar 7 is rotatably connected to the load-bearing bar 4. A gear 8 is fixedly connected to the locking bar 7. The gear 8 meshes with the horizontal section of the T-shaped rack 5. A permanent magnet 15 is slidably connected to the vertical section of the T-shaped rack 5. A limit groove 16 is opened on the load-bearing bar 4. An electromagnet 17 is fixedly connected to the inner wall of the limit groove 16.

[0025] The bottom wall of the horizontal section of the T-shaped rack 5 is provided with a tooth set, which is used to mesh with the gear 8. The electromagnet 17 generates magnetic force by energizing it. After the electromagnet 17 is energized, the polarity of the upper part is the same as the polarity of the lower end of the permanent magnet 15. The material of the load-bearing bar 4 is preferably 440C stainless steel.

[0026] To improve the load-bearing capacity and service life of the load-bearing strip 4, a displacement piece 10 is slidably connected to the load-bearing strip 4. The displacement piece 10 is connected to the load-bearing strip 4 through an elastic element 2 11. An arc-shaped groove 12 is provided on the displacement piece 10. The groove depth of the arc-shaped groove 12 gradually increases from top to bottom. A transmission strip 9 is rotatably connected to the locking strip 7. The transmission strip 9 is slidably connected to the inner wall of the arc-shaped groove 12. A reinforcing strip mechanism is connected to the rotating base 2.

[0027] The reinforcing bar mechanism can support the displacement plate 10 and improve the load-bearing capacity of the load-bearing bar 4.

[0028] Furthermore, the reinforcing bar mechanism includes a second gear 13 and a reinforcing rack 14. The second gear 13 is rotatably connected to the rotating base 2, and the reinforcing rack 14 is slidably connected to the rotating base 2. The reinforcing rack 14 extends to the outside of the rotating base 2, and the reinforcing rack 14 meshes with the second gear 13. The load-bearing bar 4 is provided with transmission teeth, and the load-bearing bar 4 meshes with the second gear 13 through the transmission teeth.

[0029] The load-bearing bar 4 can drive the gear 13 to rotate through the transmission gear, thereby driving the reinforcing rack 14 to support the load-bearing bar 4.

[0030] Furthermore, the reinforcing rack 14 is inclined, and the upper end of the reinforcing rack 14 is planar.

[0031] The inclined reinforcing rack 14 can further enhance the load-bearing capacity of the load-bearing strip 4.

[0032] As a preferred configuration, an electric wheel is rotatably connected to the crane body 18, which can drive the crane body 18 to slide along the track.

[0033] As a preferred configuration, the crane body 18 is a double-chain type, which can reduce the swing amplitude of the goods when lifting them.

[0034] like Figure 1 As shown, a high-load-bearing intelligent electric chain crane control system, based on the aforementioned high-load-bearing intelligent electric chain crane, includes a terminal system, a control system one, and a control system two. The control system one is located on the telescopic hook mechanism and includes a wireless module one and a control module one. The control system two is located on the crane body 18 and includes a wireless module two and a control module two. The terminal system includes a wireless module three and a human-machine interaction module. Wireless module one and wireless module two are wirelessly connected to wireless module three, respectively.

[0035] The terminal system can be a handheld controller, and the human-machine interaction module can be a touch screen component. The operator can remotely control the crane body 18 and the telescopic hook mechanism through the handheld controller.

[0036] The crane and control system of the present invention can be used in various scenarios, such as the handling of goods in factories, containers in ports, and goods in construction sites.

[0037] Working principle: In the initial state, the displacement plate 10 is retracted inside the load-bearing bar 4, and the locking bar 7 is in a horizontal state so that the load-bearing bar 4 can be inserted into the lifting lug, and the load-bearing bar 4 and gear 2 13 mesh.

[0038] The track is set at a high position, and the crane body 18 is slidably connected to the track via electric wheels. First, the goods are transported to the area below the track. The operator controls the crane body 18 and the telescopic hook mechanism through the terminal system. The crane body 18 slides above the goods, and the lifting chain lowers the telescopic hook mechanism, so that the load-bearing bar 4 and the lifting lug of the goods are at the same horizontal level. At this time, the load-bearing bar 4 is near the lifting lug, but the load-bearing bar 4 may not be aligned with the lifting lug. Therefore, it is necessary to adjust the angle of the load-bearing bar 4. The rotating drive device is used to rotate the rotating seat 2, so that the load-bearing bar 4 is aligned with the lifting lug. The piston rod of the self-locking cylinder 3 is extended, and the load-bearing bar 4 drives the reinforcing rack 14 to move down a small distance through the gear 13. Then the load-bearing bar 4 disengages from the gear 13 to prevent the reinforcing rack 14 from moving down continuously.

[0039] The self-locking cylinder 3 drives the load-bearing bar 4 and the locking bar 7 to insert into the lifting lug. During this process, the vertical section of the T-shaped rack 5 abuts against the lifting lug. The T-shaped rack 5 slides against the elastic force of the elastic element 6. The rotating seat 2 does not move due to its own weight. When the permanent magnet 15 on the T-shaped rack 5 slides above the limiting groove 16, the permanent magnet 15 falls into the limiting groove 16 under its own weight to limit the T-shaped rack 5. When the horizontal section of the T-shaped rack 5 slides, it will drive the gear 8 to rotate. The gear 8 will drive the locking bar 7 and the transmission bar 9 to rotate, so that the locking bar 7 changes from a horizontal state to an inclined state, thereby limiting the lifting lug. The transmission bar 9 slides in the arc groove 12. Since the depth of the arc groove 12 gradually increases from top to bottom, when the transmission bar 9 slides from below the arc groove 12 to above the arc groove 12, it will push the inner wall of the arc groove 12, thereby causing the displacement plate 10 to extend to the outside of the load-bearing bar 4 against the elastic force of the elastic element 11.

[0040] Since the load-bearing bar 4 has been extended by a certain distance, in order to improve the stability and load-bearing capacity of the load-bearing bar 4 and prevent the sliding distance of the lifting lug from being too long, the load-bearing bar 4 needs to be moved into the swivel seat 2 by a certain distance.

[0041] The lifting chain is lowered a short distance, the swivel 2 moves down a short distance, the piston rod on the self-locking cylinder 3 is shortened, and after the locking bar 7 and the lifting lug abut, the swivel 2 tilts, so that the load-bearing bar 4 can move into the swivel 2, thereby reducing the extension of the load-bearing bar 4, making the lifting lug closer to the swivel 2, and improving the load-bearing capacity and bending resistance of the load-bearing bar 4. After the load-bearing bar 4 moves to a certain distance, the transmission teeth on the bottom wall of the load-bearing bar 4 will mesh with the gear 13, thereby driving the reinforcing rack 14 to slide obliquely upward through the gear 13. The upper end of the reinforcing rack 14 abuts against the bottom wall of the extended displacement piece 10, the self-locking cylinder 3 stops running and self-locks, thereby realizing the reinforcing support of the reinforcing rack 14 for the displacement piece 10 and the load-bearing bar 4. Then the lifting chain is retracted, so that the load-bearing bar 4 lifts the goods.

[0042] During unloading, the lifting chain is lowered to allow the goods to fall to the ground. The crane body 18 is controlled to slide a short distance on the track, so that the lifting lug and the locking bar 7 are in contact, but the lifting lug is not in contact with the T-shaped rack 5. The electromagnet 17 is energized to generate magnetic force, which causes the electromagnet 17 to repel the permanent magnet 15. The permanent magnet 15 moves upward to release the restriction on the T-shaped rack 5. Under the elastic force of the elastic element 6, the T-shaped rack 5 moves back to its original position, thereby driving the locking bar 7 to return to a horizontal state. The displacement plate 10 retracts back into the load-bearing bar 4 under the elastic force of the elastic element 11. The crane body 18 is controlled to slide a short distance on the track again, so that the load-bearing bar 4 can be disengaged from the lifting lug to complete the unloading.

[0043] Beneficial effects of this invention: To achieve rapid and automatic alignment of the lifting lugs and improve the hanging efficiency, the rotator 2 achieves automatic rotation through the rotation drive device in the connecting seat 1, which enables the load-bearing bar 4 to automatically align with the cargo lifting lugs at different angles. The linear extension and retraction action of the self-locking cylinder 3 further ensures that the load-bearing bar 4 can accurately enter the lifting lug, avoiding dangerous operations by manual climbing. To achieve reliable self-locking and limit the lifting lug and avoid the risk of disengagement, the T-shaped rack 5 overcomes the elastic element 6 and slides after entering the lifting lug. The permanent magnet 15 on it falls into the limiting groove 16 and forms a mechanical limit, preventing the T-shaped rack 5 from sliding in the opposite direction. At the same time, the gear 8 drives the locking bar 7 to tilt, so that the locking bar 7 automatically presses against the lifting lug, forming a double limiting structure. This structure can complete self-locking without manual intervention, which significantly improves safety. The support of the load-bearing bar 4 is enhanced, improving the overall load-bearing capacity and enabling high-load lifting function. The transmission bar 9 slides synchronously with the locking bar 7 in the arc groove 12. The increasing groove depth design of the arc groove 12 allows the displacement plate 10 to be automatically pushed out of the load-bearing bar 4. When the load-bearing bar 4 moves backward, the gear 2 13 drives the reinforcing rack 14 to move upward, so that the upper end of the reinforcing rack 14 abuts against the bottom wall of the displacement plate 10, forming a triangular support structure for the load-bearing bar 4 and the displacement plate 10. This structure significantly improves the stability and bending resistance of the load-bearing bar 4, enabling the load-bearing bar 4 to withstand greater loads. To achieve the control of the extension of the load-bearing bar and reduce the risk of stress, after the load-bearing bar 4 is initially extended and the lifting lug is locked, the load-bearing bar 4 is automatically retracted a certain distance by controlling the retraction of the self-locking cylinder 3, so that the lifting lug is closer to the rotating seat 2, reducing the effective cantilever length of the load-bearing bar 4, thereby reducing the bending moment and improving the stress safety and life of the load-bearing bar 4. To facilitate unloading and improve unloading efficiency, the electromagnet 17 is energized during unloading, causing the permanent magnet 15 to be repelled upward by magnetic force. The T-shaped rack 5 automatically resets under the action of the elastic element 6 and drives the locking bar 7 to return to a horizontal state. The displacement plate 10 retracts into the load-bearing bar 4 under the action of the elastic element 11. The entire set of actions can be completed without manual climbing or intervention, achieving automatic unhooking and improving unloading efficiency. To achieve full remote control and improve operational flexibility, a second control system is installed on the crane body 18, and a first control system is installed on the telescopic hook mechanism. Both can be wirelessly controlled through a terminal system, allowing operators to complete hooking, lifting, and unloading operations without having to approach the lifting environment, greatly improving operational safety and convenience.

[0044] The components, modules, mechanisms, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A smart electric motorized chain hoist capable of withstanding high loads, comprising a hoist body (18), characterized in that, It also includes a movable hook mechanism, which includes a connecting seat (1) and a rotating seat (2). The connecting seat (1) is connected to the crane's chain, and the rotating seat (2) is rotatably connected to the connecting seat (1). A rotating drive device is connected inside the connecting seat (1), and the rotating drive device and the rotating seat (2) are linked together. A telescopic hook mechanism is connected on the rotating seat (2). The telescopic hook mechanism includes a self-locking cylinder (3) and a load-bearing bar (4). The self-locking cylinder (3) is fixedly connected to the rotating seat (2), and the load-bearing bar (4) is slidably connected to the rotating seat (2). The piston rod of the self-locking cylinder (3) and the load-bearing bar (4) are fixedly connected, and the load-bearing bar (4) extends to the outside of the rotating seat (2). A T-shaped rack (5) is slidably connected to the load-bearing bar (4). The T-shaped rack (5) is connected to the load-bearing bar (4) through an elastic element (6). A locking bar (7) is rotatably connected to the load-bearing bar (4). A gear (8) is fixedly connected to the locking bar (7). The gear (8) meshes with the horizontal section of the T-shaped rack (5). A permanent magnet (15) is slidably connected to the vertical section of the T-shaped rack (5). A limiting groove (16) is opened on the load-bearing bar (4). An electromagnet (17) is fixedly connected to the inner wall of the limiting groove (16). A displacement piece (10) is slidably connected to the load-bearing strip (4). The displacement piece (10) is connected to the load-bearing strip (4) through an elastic element (11). An arc groove (12) is provided on the displacement piece (10). The groove depth of the arc groove (12) gradually increases from top to bottom. A transmission strip (9) is rotatably connected to the locking strip (7). The transmission strip (9) is slidably connected to the inner wall of the arc groove (12). A reinforcing strip mechanism is connected to the rotating seat (2).

2. The intelligent electric chain crane capable of withstanding high loads according to claim 1, characterized in that, The reinforcing bar mechanism includes a second gear (13) and a reinforcing rack (14). The second gear (13) is rotatably connected to the rotating seat (2), and the reinforcing rack (14) is slidably connected to the rotating seat (2). The reinforcing rack (14) extends to the outside of the rotating seat (2). The reinforcing rack (14) and the second gear (13) mesh. The load-bearing bar (4) is provided with transmission teeth, and the load-bearing bar (4) meshes with the second gear (13) through the transmission teeth.

3. The intelligent electric chain crane capable of withstanding high loads according to claim 2, characterized in that, The reinforcing rack (14) is inclined and the upper end of the reinforcing rack (14) is planar.

4. The intelligent electric chain crane capable of withstanding high loads according to claim 1, characterized in that, An electric wheel is rotatably connected to the crane body (18).

5. The intelligent electric chain crane capable of withstanding high loads according to claim 1, characterized in that, The crane body (18) is a double-chain type.

6. The intelligent electric chain crane capable of withstanding high loads according to claim 1, characterized in that, The crane body (18) is coated with anti-corrosion paint.

7. A control system for an intelligent electric chain crane capable of withstanding high loads, characterized in that, A high-load-bearing intelligent electric chain crane according to any one of claims 1-6 includes a terminal system, a control system one and a control system two. The control system one is located on the telescopic hook mechanism and includes a wireless module one and a control module one. The control system two is located on the crane body (18) and includes a wireless module two and a control module two. The terminal system includes a wireless module three and a human-machine interaction module. The wireless module one and the wireless module two are wirelessly connected to the wireless module three, respectively.

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