Electrically powered swivel hook

Abstract

The utility model provides a kind of electric rotary hook, including the upper end of hook body rotates through hook crossbeam and extends to the top of hook crossbeam, hook nut is fixedly connected with the end of hook body extension to the top of hook crossbeam, big umbrella tooth is fixedly installed in the upper end surface of hook nut;Follow-up support is fixedly connected with hook crossbeam, reduction motor is fixedly installed on the outer side wall of follow-up support, when the clutch of initial state is separation state, power connection between reduction motor and gear transmission component is cut off, transmission system, which is formed by gear transmission component, small umbrella tooth and big umbrella tooth, is free state, hook body can rotate freely, and hook can be manually operated, unhooked and rotated to hang objects;When reduction motor and clutch are synchronously started, reduction motor rotates, clutch engages, and hook body enters electric rotary state.

Description

Technical Field

[0001] This utility model relates to the field of hook structure technology, specifically to an electric rotating hook. Background Technology

[0002] The crane hook is a core component of a crane, mainly used for lifting and moving heavy objects, and is widely used in industrial hoisting, heavy equipment handling, and other scenarios. It is mainly composed of wire rope, lifting frame structure, swivel locking device, and other parts.

[0003] A Chinese patent application with publication number CN115818423A discloses a rotating hook that is easy to adjust with an electronic scale. The hook includes a pulley block and a hook, with an electronic scale installed between the pulley block and the hook. The lower end of the pulley block has an upper connecting part, and the upper end of the hook is rotatably mounted in the lower part of the lower connecting part. A lower rotating connecting rod is rotatably mounted in the lower connecting part via a lower rotating shaft, and an upper rotating connecting rod is rotatably mounted in the upper connecting part via an upper rotating shaft. The electronic scale has an upper connecting seat at the upper end and a lower connecting seat at the lower end. The two ends of the lower rotating shaft extend out of the side wall of the lower connecting part, and a connecting rod is installed on the outer wall of the extended portion. The two ends of the upper rotating shaft extend out of the side wall of the upper connecting part, and the outer wall of the extended portion is adapted to the connecting rod.

[0004] The existing rotating hook technology transmits rotation through a gear structure located in the lower mounting plate, which has the following drawbacks and needs to be improved: 1. The transmission mechanism is installed between the hook beam and the hook head, and adopts multi-stage parallel gear transmission. In order to maintain balance, a counterweight needs to be added to the outside of the side plate on the other side of the motor. It occupies a large radial space, has a complicated structure, is heavy, has a high production cost, and has an irregular shape.

[0005] 2. If the rotary transmission system malfunctions, manual pushing and pulling of the rotation will be impossible, thus affecting hoisting operations.

[0006] 3. Occasional jamming occurs during rotation. Utility Model Content

[0007] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an electric rotating hook.

[0008] An electric rotating hook according to this utility model includes a hook body, a hook beam, a hook nut, a follower support, a geared motor, a small bevel gear, a large bevel gear, and a gear transmission assembly. The upper end of the hook body rotates through the hook beam and extends above the hook beam. The hook nut is fixedly connected to the end of the hook body extending above the hook beam. The large bevel gear is fixedly installed on the upper end face of the hook nut. The follower support is fixedly connected to the hook beam. The geared motor is fixedly installed on the outer wall of the follower support. The output shaft of the geared motor and the gear transmission assembly are connected to the small bevel gear, and the small bevel gear meshes with the large bevel gear.

[0009] Preferably, the gear transmission assembly also includes a clutch, the gear transmission assembly includes a large spur gear and a small spur gear, the output shaft of the geared motor is connected to the clutch in a transmission connection, and the clutch is connected to the small spur gear in a transmission connection. The small spur gear and the small bevel gear are rotatably mounted on the follower support via the same set of rotating shafts and bearings, and the small spur gear and the large spur gear mesh.

[0010] Preferably, a bearing seat is fixedly installed above the follower support, and the rotating shaft is rotatably mounted on the bearing seat via a bearing.

[0011] Preferably, the clutch disengages after power is cut off.

[0012] Preferably, a thrust bearing is provided between the hook nut and the hook beam.

[0013] Preferably, a radial constraint bearing is installed in the lower part of the inner cavity of the hook beam; the hook body passes upward through the radial constraint bearing and is interference-fitted with the inner ring of the radial constraint bearing.

[0014] Preferably, the geared motor, clutch, gear transmission assembly, and small bevel gear are provided in two sets.

[0015] Preferably, it further includes a yoke plate and a pulley block, wherein the pulley block is installed on the upper part of two sets of spaced-apart yoke plates, and the hook beam is installed between the two sets of spaced-apart yoke plates.

[0016] Preferably, the pulley system is provided in one or more sets.

[0017] Preferably, the hook head of the hook body includes a double hook head or a single hook head.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model can disconnect the power connection between the reduction motor and the gear transmission assembly through the clutch. The transmission system composed of the gear transmission assembly, small bevel gear and large bevel gear becomes free. The hook body can rotate freely. The hooking, unhooking and rotating of the hoisted object can be operated manually, eliminating the occasional jamming problem during the rotation process, and occupying little space.

[0019] 2. This utility model eliminates the jamming between the hook body and the inner cavity of the crossbeam caused by the offset of the center of gravity of the suspended object through the radial constraint bearing.

[0020] 3. This utility model increases the power redundancy and fault avoidance capability of the equipment by setting two sets of reduction motors, clutches, gear transmission components and small bevel gears. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram illustrating the overall structure of the electric rotating hook, which is the main feature of this utility model. Figure 2 This utility model is mainly embodied in the cross-sectional view of the electric rotating hook.

[0022] Reference numerals in the attached drawings: 1. Hook body; 2. Hook beam; 3. Hook nut; 4. Follower support; 5. Gear motor; 6. Clutch; 7. Small bevel gear; 8. Large bevel gear; 9. Large spur gear; 10. Small spur gear; 11. Bearing housing; 13. Radial restraint bearing; 14. Yoke plate; 15. Pulley block; 16. Thrust bearing. Detailed Implementation

[0023] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0024] like Figures 1 to 2As shown, an electric rotating hook according to this utility model includes a hook body 1, a hook beam 2, a hook nut 3, a follower support 4, a reduction motor 5, a clutch 6, a small bevel gear 7, a large bevel gear 8, and a gear transmission assembly. The upper end of the hook body 1 rotates through the hook beam 2 and extends above the hook beam 2. The hook nut 3 is fixedly connected to the end of the hook body 1 extending above the hook beam 2. The large bevel gear 8 is fixedly installed on the upper end face of the hook nut 3. The follower support 4 is fixedly connected to the hook beam 2. The reduction motor 5 is fixedly installed on the outer wall of the follower support 4. The output shaft of the reduction motor 5 is connected to the small bevel gear 7 through the clutch 6 and the gear transmission assembly. The small bevel gear 7 meshes with the large bevel gear 8.

[0025] During operation, the geared motor 5 starts, and the output shaft of the geared motor 5 rotates, driving the small bevel gear 7 to rotate via the clutch 6 and the gear transmission assembly. The rotation of the small bevel gear 7 drives the large bevel gear 8 and the hook nut 3 to rotate, and the hook nut 3 drives the hook body 1 to rotate. It should be noted that the clutch 6 in this application's technical solution can preferably be a jaw clutch or an electromagnetic clutch from the prior art.

[0026] According to safety requirements, during hoisting, it is forbidden to directly touch the hoisted object or the tensioned ropes, lifting gear, rigging, etc. with one's hands, and it is forbidden to use one's weight or arms to support or balance the hoisted object. Work is strictly prohibited on the hoisted object, and no one is allowed to be present under or in the vicinity of the hoisted object. This utility model of an electric rotating hook perfectly solves the above problems.

[0027] This application addresses the issue of clutch 6 disengaging after being powered off. If the rotating hook occasionally jams during rotation, and the hook body 1 remains at an angle in mid-air, preventing it from landing on the material rack, the rotating hook in this application can de-energize and shut down the reduction motor 5 and clutch 6. Clutch 6 disengages, cutting off the power connection between the reduction motor 5 and the gear transmission assembly. The transmission system, consisting of the gear transmission assembly, small bevel gear 7, and large bevel gear 8, becomes free, allowing the hook body 1 to rotate freely. Hooking, unhooking, and rotating of the load can be manually operated. At this point, manually rotating the hook into position completes one work cycle.

[0028] Specifically, the gear transmission assembly includes a large spur gear 9 and a small spur gear 10, which are arranged along the height direction. The output shaft of the geared motor 5 is connected to the clutch 6, and the clutch 6 is connected to the small spur gear 10. Further, the clutch 6 includes a fixed end and a disengaging end. The fixed end of the clutch 6 is mounted on an auxiliary seat of the geared motor 5, and the disengaging end of the clutch 6 is coaxially and fixedly connected to the small spur gear 10.

[0029] The small spur gear 10 and the small bevel gear 7 are rotatably mounted on the follower support 4 via the same set of rotating shafts and bearings. The small spur gear 10 meshes with the large spur gear 9. A bearing seat 11 is fixedly mounted on the top of the follower support 4, and the rotating shaft is rotatably mounted on the bearing seat 11 via the bearing.

[0030] To ensure the rotation effect of the rotating hook, a thrust bearing 16 is installed between the hook nut 3 and the hook beam 2. The hook body 1 can achieve electric rotation of the hook without human contact, and the rotation speed can be stabilized at a slow speed of 0.5 r / min.

[0031] More specifically, the hook head of the hook body 1 includes a double hook head or a single hook head. In the embodiment where the hook head of the hook body 1 is a double hook head, when the double hooks are unbalanced, the center of gravity of the suspended object shifts, and the hook body 1 will rub against the inner cavity of the hook beam 2 during lifting, causing jamming. The technical solution of this application installs a radial restraint bearing 13 at the lower part of the inner cavity of the hook beam 2, and the hook body 1 passes upward through the radial bearing 13 and is interference-fitted with the inner ring of the radial bearing 13. The technical solution of this application reduces jamming caused by the shift of the center of gravity of the suspended object through the radial restraint bearing 13. Furthermore, In a preferred embodiment, the geared motor 5, clutch 6, gear transmission assembly, and small bevel gear 7 are provided in one or two sets, preferably two sets. This increases the equipment's power redundancy and fault avoidance capabilities. If one geared motor 5 experiences a circuit failure or a mechanical failure in its transmission mechanism during the lifting of a workpiece, and remains at an angle in mid-air that prevents it from landing on the material rack, the clutch 6 will cut off the power transmission of one geared motor 5, allowing the other geared motor 5 to continue completing the current work cycle. If both geared motors 5 experience circuit failures or mechanical failures in their transmission mechanisms during the lifting of a workpiece, and remain at an angle in mid-air that prevents them from landing on the material rack, the clutch 6 will cut off the power transmission of both geared motors 5, allowing the hook body 1 to rotate freely. In this case, the hook body 1 can be manually rotated into position to complete one work cycle.

[0032] More specifically, in one feasible embodiment, the system further includes a yoke plate 14 and a pulley block 15. The pulley block 15 is installed on the upper part of two sets of spaced-apart yoke plates 14, and the hook beam 2 is installed between the two sets of spaced-apart yoke plates 14. The hook beam 2 is connected to the two yoke plates 14 respectively via mounting shafts. The pulley block 15 may have one or more sets.

[0033] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 this application.

[0034] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An electrically operated rotating hook, characterized in that, It includes the hook body (1), hook beam (2), hook nut (3), follower support (4), geared motor (5), small bevel gear (7), large bevel gear (8) and gear transmission assembly; The upper end of the hook body (1) rotates through the hook beam (2) and extends above the hook beam (2). The hook nut (3) is fixedly connected to the end of the hook body (1) extending above the hook beam (2). The large umbrella tooth (8) is fixedly installed on the upper end face of the hook nut (3). The follower support (4) is fixedly connected to the hook beam (2), the geared motor (5) is fixedly installed on the outer wall of the follower support (4), the output shaft and gear transmission assembly of the geared motor (5) are connected to the small bevel gear (7), and the small bevel gear (7) meshes with the large bevel gear (8).

2. The electric rotating hook as described in claim 1, characterized in that, It also includes a clutch (6), the gear transmission assembly includes a large spur gear (9) and a small spur gear (10), the output shaft of the geared motor (5) is connected to the clutch (6) in a transmission connection, and the clutch (6) is connected to the small spur gear (10) in a transmission connection; The small spur gear (10) and the small bevel gear (7) are rotatably mounted on the follower support (4) through the same set of rotating shafts and bearings, and the small spur gear (10) and the large spur gear (9) mesh.

3. The electric rotating hook as described in claim 2, characterized in that, A bearing seat (11) is fixedly installed above the follower support (4), and the rotating shaft is rotatably mounted on the bearing seat (11) through the bearing.

4. The electric rotating hook as described in claim 2, characterized in that, The clutch (6) disengages after being de-energized.

5. The electric rotating hook as described in claim 1, characterized in that, A thrust bearing (16) is provided between the hook nut (3) and the hook beam (2).

6. The electric rotating hook as described in claim 1, characterized in that... The lower part of the inner cavity of the hook beam (2) is equipped with a radial constraint bearing (13); The hook body (1) passes upward through the radial constraint bearing (13) and is interference-fitted with the inner ring of the radial constraint bearing (13).

7. The electric rotating hook as described in claim 1, characterized in that, The geared motor (5), clutch (6), gear transmission assembly and small bevel gear (7) are provided with one or two sets.

8. The electric rotating hook as described in claim 1, characterized in that, It also includes a yoke plate (14) and a pulley block (15), the pulley block (15) being installed on the upper part of two sets of spaced yoke plates (14), and the hook beam (2) being installed between the two sets of spaced yoke plates (14).

9. The electric rotating hook as described in claim 8, characterized in that, The pulley block (15) is provided with one or more blocks.

10. The electrically operated rotating hook as described in claim 1, characterized in that, The hook head of the hook body (1) includes a double hook head or a single hook head.

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