Anti-falling double lifting hooks of crane

Abstract

The utility model discloses a crane anti-drop double lifting hook which comprises a lifting ring, a connecting block fixedly connected to the lower end of the lifting ring, a first motor fixedly installed in the connecting block, a first transmission rod connected to an output end spline of the first motor, a damping rotating shaft rotatably connected to the lower end of the first transmission rod, and a rotating cylinder fixedly connected to the outside of the damping rotating shaft. A two-way servo motor is fixedly mounted in the rotating cylinder, a second transmission rod is connected to an output end spline of the two-way servo motor, a driving gear is fixedly connected to the outer end of the second transmission rod, the driving gear is meshed with a driven gear through a rack, a vertical rod is fixedly connected to one side of the driven gear, and a lifting hook is fixedly connected to the lower end of the vertical rod. Through the arrangement of the lifting ring, the effect of facilitating replacement and connection during use is achieved, through the matched arrangement of the first motor, the first transmission rod, the damping rotating shaft and the rotating cylinder, the first motor drives the rotating cylinder connected with the damping rotating shaft to rotate during use, and the effect of adjusting the lifting direction of the lifting hook is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hooks, in particular to an anti-dropping double hook for a crane. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. When lifting materials, employees hang the rope wrapped around the materials on the crane hook for lifting. Some lifting equipment has the working characteristic of intermittent movement, that is, the corresponding mechanisms of material picking, transportation, unloading and other actions work alternately in one working cycle. Cranes are developing and being used more and more widely in the market, and the use of double hooks can further strengthen the lifting effect.

[0003] The inventor discovered during the process of implementing the utility model:

[0004] The existing crane anti-drop double hook is generally not convenient for adjusting the lifting direction, and the double hook generally has anchor type and parallel hook usage modes, which are applied to different force usage conditions, and the commonly used double hooks all use a single structure, which needs to be disassembled and replaced to change the usage mode, which is more troublesome. Therefore, the utility model provides a crane anti-drop double hook. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a double hook for preventing a crane from falling off.

[0006] To this end, the technical solution of the utility model is: a crane anti-drop double hook, including a lifting ring, characterized in that: the lower end of the lifting ring is fixedly connected to a connecting block, a first motor is fixedly installed inside the connecting block, an output end of the first motor is splined to a first transmission rod, the lower end of the first transmission rod is rotatably connected to a damping shaft, and the outer side of the damping shaft is fixedly connected to a rotating cylinder,

[0007] A bidirectional servo motor is fixedly installed inside the rotating cylinder, and the output end of the bidirectional servo motor is spline-connected to the second transmission rod, the outer end of the second transmission rod is fixedly connected to a driving gear, the driving gear is meshed with a passive gear through a rack, one side of the passive gear is fixedly connected to a vertical rod, and the lower end of the vertical rod is fixedly connected to a hook.

[0008] Preferably, a connecting sleeve is rotatably connected between the two vertical rods.

[0009] Preferably, an anti-drop rod is rotatably connected to the hook.

[0010] Preferably, a groove is provided on the inner side wall of the hook.

[0011] Beneficial effects: Compared with the prior art, the utility model, through the setting of the lifting ring, plays a role of facilitating the replacement of the connection when in use; through the coordinated setting of the first motor, the first transmission rod, the damping shaft and the rotating cylinder, when in use, the first motor drives the rotating cylinder connected to the damping shaft to rotate through the first transmission rod, thereby playing a role in adjusting the lifting direction of the hook; through the coordinated setting of the bidirectional servo motor, the second transmission rod, the driving gear, the passive gear and the vertical rod, when in use, the bidirectional servo motor drives the driving gear to rotate through the second transmission rod, and then rotates the passive gear meshing on one side of the driving gear, and then rotates the vertical rod connected to the passive gear, thereby playing a role in adjusting the double hook mode; through the setting of the connecting sleeve, it plays a role in connecting the support hook when in use; through the coordinated setting of the hook and the anti-slip rod, when in use, the lifting object is hung on the hook, and then the anti-slip rod seals the outlet, thereby playing a role in preventing the lifting object from falling off, and through the setting of the groove, when in use, it plays a role in preventing the lifting object from shifting during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model.

[0013] Figure 2 It is a cross-sectional view of the utility model.

[0014] As shown in the figure: 1. lifting ring; 2. connecting block; 3. first motor; 4. first transmission rod; 5. damping shaft; 6. rotating cylinder; 7. bidirectional servo motor; 8. second transmission rod; 9. driving gear; 10. passive gear; 11. vertical rod; 12. connecting sleeve; 13. lifting hook; 14. anti-drop rod; 15. groove. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be understood as a limitation to the present invention.

[0016] The utility model Figure 1 and Figure 2 As shown:

[0017] A double hook for preventing a crane from falling off comprises a lifting ring 1. The lifting ring 1 is arranged to facilitate replacement of the connection when in use. The lower end of the lifting ring 1 is fixedly connected to a connecting block 2. A first motor 3 is fixedly installed inside the connecting block 2. The output end of the first motor 3 is spline-connected to a first transmission rod 4. The lower end of the first transmission rod 4 is rotatably connected to a damping shaft 5. The outer side of the damping shaft 5 is fixedly connected to a rotating cylinder 6. The first motor 3, the first transmission rod 4, the damping shaft 5 and the rotating cylinder 6 are matched and arranged. When in use, the first motor 3 drives the rotating cylinder 6 connected to the damping shaft 5 to rotate through the first transmission rod 4, thereby adjusting the lifting direction of the hook.

[0018] A bidirectional servo motor 7 is fixedly installed inside the rotating cylinder 6, and a second transmission rod 8 is spline-connected to the output end of the bidirectional servo motor 7, and a driving gear 9 is fixedly connected to the outer end of the second transmission rod 8. A passive gear 10 is meshed with a rack on one side of the driving gear 9, and a vertical rod 11 is fixedly connected to one side of the passive gear 10, and a hook 13 is fixedly connected to the lower end of the vertical rod 11. Through the coordinated arrangement of the bidirectional servo motor 7, the second transmission rod 8, the driving gear 9, the passive gear 10 and the vertical rod 11, when in use, the bidirectional servo motor 7 drives the driving gear 9 to rotate through the second transmission rod 8, and then rotates the passive gear 10 meshed with one side of the driving gear 9, and then rotates the vertical rod 11 connected to the passive gear 10, thereby playing a role in adjusting the double hook mode;

[0019] A connecting sleeve 12 is rotatably connected between the vertical rods 11. Through the setting of the connecting sleeve 12, it plays the role of connecting and supporting the hook when in use. An anti-drop rod 14 is rotatably connected to one side of the hook 13. Through the matching setting of the hook 13 and the anti-drop rod 14, the lifting object is hung on the hook 13 when in use, and then the anti-drop rod 14 seals the outlet, thereby preventing the lifting object from falling off. A groove 15 is provided on the inner wall of the hook 13. Through the setting of the groove 15, it plays the role of preventing the lifting object from shifting during the lifting process when in use.

[0020] Parts not described in detail in this specification are well-known technologies in the art.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double hook for preventing a crane from falling off, comprising a lifting ring (1), characterized in that: The lower end of the lifting ring (1) is fixedly connected to a connecting block (2), a first motor (3) is fixedly installed inside the connecting block (2), an output end of the first motor (3) is spline-connected to a first transmission rod (4), a lower end of the first transmission rod (4) is rotatably connected to a damping shaft (5), and an outer portion of the damping shaft (5) is fixedly connected to a rotating cylinder (6), A bidirectional servo motor (7) is fixedly installed inside the rotating cylinder (6); an output end of the bidirectional servo motor (7) is spline-connected to a second transmission rod (8); an outer end of the second transmission rod (8) is fixedly connected to a driving gear (9); the driving gear (9) is meshed with a driven gear (10) via a rack; one side of the driven gear (10) is fixedly connected to a vertical rod (11); and a lower end of the vertical rod (11) is fixedly connected to a hook.

2. The anti-drop double hook for crane according to claim 1, characterized in that: A connecting sleeve (12) is rotatably connected between the two vertical rods (11).

3. The anti-drop double hook for crane according to claim 1 or 2, characterized in that: An anti-drop rod (14) is rotatably connected to the hook (13).

4. The anti-drop double hook for crane according to claim 3, characterized in that: The inner side wall of the hook (13) is provided with a groove (15).

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