Lifting hook capable of being automatically unhooked and hooked

Abstract

The invention discloses a lifting hook capable of automatically unhooking and hooking, and belongs to the technical field of lifting equipment. Aiming at the problems of low manual operation efficiency and poor safety of a traditional lifting hook, two groups of independent driving mechanisms are adopted, one group realizes horizontal rotation through a worm gear and a worm, and the other group realizes vertical swing by driving a plum blossom shaft through a gear motor, so that spatial free rotation of the lifting hook is realized cooperatively. The device is compact in structure, stable in operation, capable of achieving full-automatic hook picking and hooking operation, capable of remarkably improving operation efficiency and safety and particularly suitable for heavy hoisting occasions such as ports and storage.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting equipment, and in particular relates to a lifting hook which can automatically be detached and hooked. Background Art

[0002] Hooks are widely used in various types of lifting equipment. Traditional hooks require manual operation to hang and remove items, which is labor-intensive and prone to operational errors, posing safety hazards. With the development of automation technology, the market demand for automated hooks has gradually increased, which can improve work efficiency and reduce accident risks. However, existing automated hook devices generally have problems such as complex structure and high failure rate, and lack stability under large load changes. Therefore, the development of an automatic hook with a simple structure, stable and reliable structure has become a technical problem that the industry urgently needs to solve. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a new type of automated hook, which realizes the automatic hooking and unhooking function of the hook by simplifying the structure, reduces manual operation, improves work efficiency, reduces labor intensity, and avoids safety problems caused by human errors, especially when ton bags are filled with corrosive substances or chemicals.

[0004] The present invention is a lifting hook capable of automatically removing and hooking. The hook is mainly divided into two parts, one part is used to realize the rotation of the hook (22) in the horizontal plane, and the other part is used to realize the rotation of the hook (22) in the vertical plane. The part realizing the rotation in the horizontal plane mainly comprises a worm (8), one end of the worm (8) is connected to a motor (5) through a coupling (6), the motor (5) is fixed on a housing (7), and the other end of the worm (8) is matched with a deep groove ball bearing (9). The deep groove ball bearing (9) is fixed by a bearing end cover (10) and a retaining ring (11), and the bearing end cover (10) is fixed on the housing (7). The worm (8) is meshed with a turbine (14), and the turbine (14) and the lower connecting plate (3) are integrated, and a through hole is opened in the middle, and is matched with a plane needle bearing (2) and a vertical section shaft (12), and the plane needle bearing (12) is fixed by a retaining ring (15). One end of the vertical section shaft (12) is connected to the fixed block (1) by a thread, and the other end is provided with a tray, and the tray and the connecting plate (3) are in contact with each other by a plane bearing (13). The connecting plate (3) is provided with a bolt hole, which is connected to the flange of the connecting frame (4) below; the part that realizes rotation in the vertical plane mainly includes a hook (22), and the hook (22) is provided with a plum blossom through hole, which is matched with the plum blossom shaft (20). There are cutting planes on both sides of the hook, and the planes are matched with the lower end of the connecting frame through a plane bearing (18). The lower end of the connecting frame (4) is provided with a through hole, which is matched with the plum blossom shaft (20) through a deep groove ball bearing (21), and then fixed by a retaining ring (23). One end of the plum blossom shaft (20) is provided with a keyway, which is connected to the coupling (17) through a key (24), and the motor (16) drives the reducer (25) to connect with the coupling (17). The other end is provided with a thread, which is connected to the counterweight block (19) with a threaded hole.

[0005] The present invention has the following beneficial effects: the present invention drives the coupling through a motor, and then the coupling drives the worm, the worm drives the turbine to rotate, the turbine and the connecting disk are integrated, the connecting disk is connected to the connecting frame through a flange, and then the connecting frame drives the hook to realize horizontal rotation, which solves the problem that the sling position does not match the expected position, thereby causing the hook to be unable to accurately hang the sling.

[0006] The present invention drives the reducer through a motor, and then the reducer drives the coupling to drive the rotation of the plum blossom shaft, and the plum blossom shaft drives the hook to rotate in a vertical plane. The function of the reducer is to increase the torque and also make the hook rotate slightly in the vertical plane, thereby realizing the removal and hooking of the hook when the sling is in a good position.

[0007] The vertical end shaft in the present invention is a fixed shaft, and the fixed shaft and the turbine are directly matched through a plane needle roller bearing. First, setting the vertical end shaft as a fixed shaft can reduce the radial force on the shaft, and the shaft can also withstand large axial forces. Secondly, a plane needle roller bearing is selected between the shaft and the turbine, which has strong load-bearing capacity, compact structure, good friction and wear resistance, and can especially withstand large axial loads and radial loads, solving the problem of easy fatigue fracture of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0009] Figure 1 The present invention provides an assembly diagram of a lifting hook device capable of automatically removing and hooking.

[0010] Figure 2 The present invention provides a three-dimensional structural schematic diagram of a lifting hook device capable of automatically removing and hooking.

[0011] Figure 3 The exploded schematic diagram of the horizontal rotating part of the lifting hook device which can automatically remove and hook the hook proposed by the present invention.

[0012] Figure 4 The exploded schematic diagram of the vertical plane rotating part of the lifting hook device which can automatically remove and hook the hook proposed by the present invention.

[0013] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Fixing block; 2. Plane needle bearing; 3. Connecting plate; 4. Connecting frame; 5. Motor; 6. Coupling; 7. Housing; 8. Worm; 9. Deep groove ball bearing; 10. Bearing end cover; 11. Retaining ring; 12. Vertical section shaft; 13. Plane bearing; 14. Turbine; 15. Retaining ring; 16. Motor; 17. Coupling; 18. Plane bearing; 19. Counterweight; 20. Plum blossom shaft; 21. Deep groove ball bearing; 22. Hook; 23. Retaining ring; 24. Key; 25. Reducer. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two parts. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a new type of automated hook, which realizes the automatic hooking and unhooking function of the hook by simplifying the structure, reduces manual operation, improves work efficiency, reduces labor intensity, and avoids safety problems caused by human errors, especially when ton bags are filled with corrosive substances or chemicals.

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the present invention relates to an automated hook device, in particular to a hook with an automatic hooking and unhooking function. The driving system of the hook device is composed of a motor, a worm wheel, a worm and a coupling. The motor (5) is connected to the worm (8) through the coupling (6), driving the worm (8) to rotate, thereby driving the turbine (14) to rotate. The transmission system of the worm wheel (14) and the turbine ensures efficient and smooth transmission of power. A connecting plate (3) is provided on the upper part of the hook device. The connecting plate (3) contacts with a tray through a plane bearing (13). The tray supports the connecting plate (3) to maintain the stability of the entire structure. The connecting plate (3) and the turbine (14) are designed as an integrated whole. There are two connecting frames (4) below the connecting plate (3). The two connecting frames (4) are connected to the connecting plate (3) through a flange, thereby ensuring the reliability and bearing capacity of the structure. A through hole is opened at the bottom end of the connecting frame (4), and a deep groove ball bearing (21) is installed in the through hole to ensure the smooth rotation of each component. The main body of the hook (22) is connected to the connecting frame (4) through the plum blossom shaft (20), and the plum blossom shaft (20) is connected to the driving system of the motor (16). The motor (16) is decelerated by the reducer (25), and then drives the plum blossom shaft (20) to rotate through the coupling (17). The rotation of the plum blossom shaft (20) enables the hook to rotate freely in the horizontal plane, which facilitates the hanging and taking operation of the hook (22).

[0019] A plum blossom through hole is provided on the upper part of the hook (22), and the plum blossom through hole matches the plum blossom shaft (20), so that the hook can be hung and removed. When the hook needs to be removed, the plum blossom shaft (20) is driven to rotate by the motor (16), so that the hook rotates to a predetermined angle, thereby automatically separating the hook mouth from the hook position. When the hook needs to be hooked, the motor (16) drives the plum blossom shaft (20) in reverse, and the hook automatically rotates to a specified position, and the hook operation is accurately completed.

[0020] In order to ensure the stability of the hook during rotation, a counterweight (19) is installed at the other end of the plum blossom shaft (20) to prevent the device from being unbalanced or deviating from the predetermined track due to uneven force. The design of the counterweight (19) optimizes the performance of the device and improves the operating accuracy and safety.

[0021] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A hook capable of automatically removing and hooking, comprising a worm (8), characterized in that: The worm (8) is connected to the motor (5) via a coupling (6), and the motor (5) drives the worm (8) to drive the turbine (14) to rotate. The vertical section shaft (12) is a fixed shaft and is threadedly matched with the fixed block (1). The turbine (14) and the connecting plate (3) below are integrated. The housing (7) contains the entire worm wheel (14) and worm (8) combination. The connecting plate (3) is connected to the connecting frame (4). The lower end of the connecting frame (4) is provided with a circular hole, which is connected to the hook (22) via a plum blossom shaft (20). The hook (22) rotates in the horizontal plane, the plum blossom shaft (20) is driven by a motor (16), the motor (16) is decelerated by a reducer (25) and then connected to the plum blossom shaft (20) by a coupling (17), driving the hook (22) to rotate in the vertical plane, the hook (22) has cut surfaces at both ends, and is in contact with the lower end of the connecting frame (4) through a plane bearing (18), and the other end of the plum blossom shaft (20) is provided with a counterweight (19), which has the advantage of being able to rotate freely in the horizontal plane and the vertical plane, thereby realizing automatic hooking and unhooking.

2. The automatic hook for removing and hooking according to claim 1, characterized in that: The vertical section shaft (12) is a fixed shaft and has a tray below. The tray and the connecting plate of the worm gear are in contact with each other via a plane bearing (13).

3. The automatic hook for removing and hooking according to claim 1, characterized in that: The turbine (14) and the connecting plate (3) are integrated into one body and are connected to two connecting frames (4) via flanges.

4. The automatic hook for removing and hooking according to claim 1, characterized in that: The bottom ends of the two connecting frames (4) are each provided with a through hole, and a deep groove ball bearing (21) is installed in the through hole.

5. The automatic hook for removing and hooking according to claim 1, characterized in that: The upper part of the hook (22) is provided with a plum blossom through hole, which matches the plum blossom shaft (20).

6. The automatic hook for removing and hooking according to claim 1, characterized in that: One end of the plum blossom shaft (20) is provided with a thread, and the counterweight block (19) is provided with a threaded hole, so that the plum blossom shaft (20) and the counterweight block (19) can be better closely matched.

7. The automatic hook for removing and hooking according to claim 1, characterized in that: The other end of the worm (8) is matched with a deep groove ball bearing (9), and the bearing is fixed by a bearing end cover (10), thereby improving the stability of the worm's rotation.

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