Anti-swing device for lifting hook of crane

Abstract

The utility model belongs to the field of anti-swing devices, and particularly relates to a crane hook anti-swing device which comprises a shell, two symmetrically-distributed threaded pipes are installed in the shell through bearings, two symmetrically-distributed screw rods are connected in the threaded pipes through threads, the outer sides of the screw rods are fixedly connected with a connecting frame, and the connecting frame is fixedly connected with a lifting hook. And an anti-shaking mechanism is arranged on the shell, a fixing plate is fixedly connected to the interior of the shell, a worm is installed in the fixing plate through a bearing, and a bevel gear is fixedly connected to the outer side of a threaded pipe. The threaded pipe, the bevel gear, the balancing weight and other structures are additionally arranged on the shell, and the width between the two steel ropes can be increased through threaded fit between the threaded pipe and the screw rod in the using process, so that the stability of the shell and the lifting hook can be improved through a wider lifting area, and the lifting hook is prevented from swinging; and the stability range can be adjusted according to the hoisting condition.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-sway devices, in particular to an anti-sway device for a crane hook. Background Technique

[0002] An anti-sway device for a crane hook proposed according to the patent authorization announcement number: CN221027193U. This utility model discloses an anti-sway device for a crane hook, which relates to the technical field of crane hooks. This utility model includes a hook, a U-shaped rod is fixedly arranged at the top of the hook, a connecting plate is fixedly arranged at the top of the U-shaped rod, traction ropes are fixedly arranged at the top corners of the connecting plate, and an installation box is arranged at one end of the traction rope away from the connecting plate. By arranging a U-shaped rod, a connecting plate, traction ropes and an installation box at the top of the hook, and a driving mechanism for simultaneously driving the four traction ropes to stretch and contract is arranged inside the installation box. During the process of hoisting a heavy object suspended on the hook, a triangle is formed between two adjacent traction ropes and the connecting plate, which can maintain stability, reduce the swaying amplitude generated by the hook during hoisting, and can more efficiently prevent the hoisted heavy object at a fixed position, achieving the purpose of improving efficiency, and can freely lift and lower, which is very worthy of popularization and application.

[0003] However, the anti-sway range of the existing anti-sway device is limited during use, affecting the stability of anti-sway. Therefore, it is necessary to improve the existing technology. Content of the Utility Model

[0004] The purpose of this utility model is to provide an anti-sway device for a crane hook, which solves the problem of the instability of the hook caused by the limited anti-sway range.

[0005] To achieve the above purpose, this utility model provides the following technical solution: An anti-sway device for a crane hook, including a housing, two symmetrically distributed threaded pipes are installed inside the housing through bearings, two symmetrically distributed screw rods are connected inside the threaded pipes through threads, a connecting frame is fixedly connected to the outside of the screw rod, an anti-vibration mechanism is arranged on the housing, a fixing plate is fixedly connected inside the housing, a worm is installed inside the fixing plate through a bearing, a helical gear is fixedly connected to the outside of the threaded pipe, a mounting plate is fixedly connected to the upper part of the inner wall of the housing, a double-shaft motor is fixedly connected to the upper end of the mounting plate, and a hook connecting seat is fixedly connected to the lower end of the housing.

[0006] Preferably, a wheel frame is fixedly connected to the outside of the connecting frame, and a guide wheel is installed inside the wheel frame through a bearing. The guide wheel can guide the steel rope of the crane.

[0007] Preferably, the output shaft of the biaxial motor is fixedly connected to the worm through a coupling, and the worm meshes with the helical gear, and the worm can drive the helical gear to rotate.

[0008] Preferably, a steel wire is fixedly connected to the lower end of the mounting plate, and a counterweight is fixedly connected to the lower end of the steel wire. The counterweight can offset the swinging inertia of the outer shell through inertia.

[0009] Preferably, the anti-vibration mechanism includes a sliding rod. The sliding rod is slidably connected inside the outer shell. A guide ring is slidably connected to the outside of the sliding rod. A baffle is fixedly connected to one end of the sliding rod located inside the outer shell. A spring is arranged outside the sliding rod. The connecting frame is fixedly connected to the sliding rod, and the sliding rod can move following the connecting frame.

[0010] Preferably, the guide ring contacts the connecting frame, and the guide ring is fixedly connected to the outer shell. The guide ring can guide the movement of the sliding rod.

[0011] Preferably, one end of the spring is fixedly connected to the baffle, and the other end of the spring is fixedly connected to the outer shell. The spring can support the baffle through elastic force.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By adding structures such as a threaded pipe, a helical gear, and a counterweight to the outer shell, in the process of use, the width between the two steel ropes can be increased through the thread fit between the threaded pipe and the screw rod, so that the stability of the outer shell and the hook can be increased through a wider hoisting area, avoiding the swinging of the hook, and the stability range can be adjusted according to the hoisting situation.

[0014] 2. By adding structures such as a sliding rod, a baffle, and a guide ring inside the outer shell, when adjusting the use width of the connecting frame through the thread fit between the threaded pipe and the screw rod, the moving resistance of the connecting frame can be provided by the elastic force of the spring, so that the shaking between the screw rod and the threaded pipe can be avoided, and the stability is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is the Figure 1 three-dimensional sectional view of the present utility model;

[0017] Figure 3 is the Figure 2 three-dimensional enlarged view of the connecting frame of the present utility model;

[0018] Figure 4 For the present utility model Figure 2 is an enlarged view of the structure of part A.

[0019] In the figure: 1, outer shell; 2, threaded pipe; 3, connecting frame; 4, wheel frame; 5, guide wheel; 6, anti-vibration mechanism; 7, fixing plate; 8, helical gear; 9, worm; 10, mounting plate; 11, double-shaft motor; 12, steel wire; 13, counterweight; 14, hook connecting seat; 15, screw; 61, sliding rod; 62, guide ring; 63, baffle; 64, spring. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 , Figure 2 , Figure 3 , a crane hook anti-sway device, including an outer shell 1. Two symmetrically distributed threaded pipes 2 are installed inside the outer shell 1 through bearings. Two symmetrically distributed screws 15 are threadedly connected inside the threaded pipes 2. A connecting frame 3 is fixedly connected to the outside of the screw 15. An anti-vibration mechanism 6 is provided on the outer shell 1. A fixing plate 7 is fixedly connected inside the outer shell 1. A worm 9 is installed inside the fixing plate 7 through a bearing. A helical gear 8 is fixedly connected to the outside of the threaded pipe 2. The upper part of the inner wall of the outer shell 1 is fixedly connected with a mounting plate 10. The upper end of the mounting plate 10 is fixedly connected with a double-shaft motor 11. The lower end of the outer shell 1 is fixedly connected with a hook connecting seat 14.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , a wheel frame 4 is fixedly connected to the outside of the connecting frame 3. A guide wheel 5 is installed inside the wheel frame 4 through a bearing. The guide wheel 5 can guide the steel rope of the crane. The output shaft of the double-shaft motor 11 is fixedly connected with the worm 9 through a coupling. The worm 9 meshes with the helical gear 8. The worm 9 can drive the helical gear 8 to rotate. A steel wire 12 is fixedly connected to the lower end of the mounting plate 10. A counterweight 13 is fixedly connected to the lower end of the steel wire 12. The counterweight 13 can offset the swinging inertia of the outer shell 1 through inertia.

[0023] Please refer to Figure 1 , Figure 2 , Figure 4, the anti-shake mechanism 6 includes a sliding rod 61. The sliding rod 61 is slidably connected inside the housing 1. A guide ring 62 is slidably connected to the outer side of the sliding rod 61. One end of the sliding rod 61 located inside the housing 1 is fixedly connected to a baffle 63. A spring 64 is arranged on the outer side of the sliding rod 61. The connecting frame 3 is fixedly connected to the sliding rod 61. The sliding rod 61 can move along with the connecting frame 3. The guide ring 62 contacts the connecting frame 3. The guide ring 62 is fixedly connected to the housing 1. The guide ring 62 can guide the movement of the sliding rod 61. One end of the spring 64 is fixedly connected to the baffle 63, and the other end of the spring 64 is fixedly connected to the housing 1. The spring 64 can support the baffle 63 through elastic force.

[0024] The specific implementation process of the present utility model is as follows: When in use, start the double-shaft motor 11. The double-shaft motor 11 drives the worm 9 to rotate. During the rotation of the worm 9, it can drive the threaded tube 2 to rotate through the helical gear 8. During the rotation of the threaded tube 2, it can drive the wheel frame 4 outside the connecting frame 3 to move through the thread fit with the screw rod 15. During the movement of the two wheel frames 4, they can deflect two parallel steel ropes. During the deflection of the steel ropes, a triangular support can be formed, and the width of the bottom surface of the triangle can be adjusted, thereby effectively improving the hoisting stability of the housing 1.

[0025] Moreover, during the movement of the connecting frame 3, the connecting frame 3 drives the sliding rod 61 to move. The sliding rod 61 compresses the spring 64 through the baffle 63. The elastic force generated after the spring 64 is compressed can drive the screw rod 15 and the threaded tube 2 to fit more tightly, thereby effectively improving the stability.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A crane hook anti-sway device, comprising a housing (1), characterized in that: Two symmetrically distributed threaded tubes (2) are installed inside the housing (1) via bearings, two symmetrically distributed screws (15) are connected inside the threaded tubes (2) via threads, the outer sides of the screws (15) are fixedly connected to a connecting frame (3), an anti-shake mechanism (6) is provided on the housing (1), a fixing plate (7) is fixedly connected inside the housing (1), a worm (9) is installed inside the fixing plate (7) via bearings, a bevel gear (8) is fixedly connected outside the threaded tube (2), a mounting plate (10) is fixedly connected to the upper part of the inner wall of the housing (1), a dual-axis motor (11) is fixedly connected to the upper end of the mounting plate (10), and a hook connecting seat (14) is fixedly connected to the lower end of the housing (1).

2. The crane hook anti-sway device according to claim 1, characterized in that: The outer side of the connecting frame (3) is fixedly connected to a wheel frame (4), and the interior of the wheel frame (4) is provided with a guide wheel (5) via a bearing.

3. The crane hook anti-sway device according to claim 1, characterized in that: The output shaft of the dual-shaft motor (11) is fixedly connected to the worm (9) via a coupling, and the worm (9) is meshed with the helical gear (8).

4. The crane hook anti-sway device according to claim 1, characterized in that: The lower end of the mounting plate (10) is fixedly connected to a steel wire (12), and the lower end of the steel wire (12) is fixedly connected to a counterweight block (13).

5. The crane hook anti-sway device according to claim 1, characterized in that: The anti-shake mechanism (6) comprises a slide bar (61), the interior of the housing (1) is slidably connected to the slide bar (61), the exterior of the slide bar (61) is slidably connected to a guide ring (62), one end of the slide bar (61) located inside the housing (1) is fixedly connected to a baffle (63), a spring (64) is provided on the exterior of the slide bar (61), and the connecting frame (3) is fixedly connected to the slide bar (61).

6. The crane hook anti-sway device according to claim 5, characterized in that: The guide ring (62) is in contact with the connecting frame (3), and the guide ring (62) is fixedly connected to the housing (1).

7. The crane hook anti-sway device according to claim 5, characterized in that: One end of the spring (64) is fixedly connected to the baffle (63), and the other end of the spring (64) is fixedly connected to the housing (1).

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