Low-altitude adjustable cable crane

Abstract

The utility model discloses a low-altitude adjustable cable crane. The low-altitude adjustable cable crane comprises a hoisting mechanism, a hoisting frame and a hoisting rope, according to the low-altitude adjustable cable crane, extending sleeves matched with a shell are symmetrically connected to the interior of the shell in a sliding mode, a rotating arm is rotationally arranged at the center of the shell through a rotating shaft, a sliding rod matched with the rotating arm is connected to the inner side of the rotating arm in a sliding mode, an inserting cavity used for the sliding rod to be inserted in and connected with the rotating arm in a sliding mode is formed in the rotating arm, and a lifting seat is fixedly connected to the end of the sliding rod; the two-way threaded rod is driven by the first motor, the first bevel gear and the second bevel gear are matched to drive the two-way threaded rod to rotate, the extension sleeve can be in sliding fit with driving of the threaded sleeve in the shell, the moving effect is achieved, and in the extension sleeve moving process, the lifting base is driven to move through matching of a positioning pin and an arc-shaped notch; and the lifting seat is kept connected with the rotating arm through the sliding rod, so that the mounting distance of the lifting ropes is adjusted, and the lifting requirements of different distance widths can be conveniently met.

Description

Technical Field

[0001] This utility model relates to the field of cable cranes, specifically a low-altitude adjustable cable crane. Background Technology

[0002] Cable-stayed bridge construction is a method of assembling prefabricated components into a bridge using a cable system. A cable-stayed bridge system can be divided into four basic components according to its working nature: main cable, working cables, tower, and anchoring devices. The working cables include lifting cables, traction cables, and tie cables. The working principle of cable-stayed bridge construction is that the main cable bears the load and serves as the track for a trolley. The lifting and traction devices on the main cable trolley lift, raise, lower, transport, and install the components.

[0003] A search revealed a patent document with publication number CN217102762U, which discloses a low-altitude angle adjustable cable crane. The cable crane includes a lifting mechanism 1 and a lifting frame 2 located below the lifting mechanism 1. A lifting rope 3 is provided below the lifting frame 2. The crane can actively adjust the transfer angle of the items to improve the safety and stability of the transfer.

[0004] While the existing technology can easily adjust the operating angle, the fixed spacing of the hoisting ropes makes it difficult to adapt to different hoisting distances. Therefore, a new low-altitude adjustable cable hoist is proposed to optimize the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide a low-altitude adjustable cable hoist to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A low-altitude adjustable cable hoist includes a hoisting mechanism and a hoisting frame connected below the hoisting mechanism. A hoisting rope is connected to the hoisting frame. The hoisting frame includes a housing. An extension sleeve adapted to the housing is symmetrically slidably connected inside the housing. A rotating arm is rotatably connected to the center of the housing via a rotating shaft. A sliding rod adapted to the rotating arm is slidably connected to the inner side of the rotating arm. The rotating arm has a cavity for the sliding rod to be inserted and slidably connected. A lifting seat is fixedly connected to the end of the sliding rod. Both the lifting seat and the rotating arm can be inserted into the extension sleeve and slide close together. The bottom surface of the extension sleeve has an arc-shaped notch corresponding to the lifting seat for the hoisting rope to avoid. A positioning pin adapted to the arc-shaped notch is fixedly connected to the bottom surface of the lifting seat corresponding to the arc-shaped notch. The positioning pin is movably disposed in the arc-shaped notch. The hoisting rope is fixedly connected to the bottom surface of the positioning pin.

[0008] A bidirectional threaded rod is rotatably mounted on one side of the top surface of the housing. Both ends of the bidirectional threaded rod are threadedly connected to threaded sleeves that are compatible with it. The ends of the threaded sleeves are fixedly connected to the extension sleeves through connecting ears. A first bevel gear is fixedly connected to the middle part of the bidirectional threaded rod. A second bevel gear that meshes with the first bevel gear is provided on the outside of the first bevel gear. The second bevel gear is fixedly mounted on the output end of the first motor. The first motor is fixedly mounted on the top surface of the housing.

[0009] As a further embodiment of this utility model: a toothed ring is fixedly embedded at both ends of the rotating arm. The toothed rings have the same diameter and number of teeth and are arranged symmetrically and concentrically. A gear is provided on the outer side of each toothed ring to mesh with and drive it. A clearance groove is provided on the extension sleeve corresponding to the gear. A clearance groove is provided on the rotating arm for toothed ring embedding and gear installation.

[0010] As a further embodiment of this utility model: the gear is rotatably mounted to the housing via a rotating shaft, and a worm gear is fixedly connected to the top of the rotating shaft after it rotates through the housing. The worm gear is fixedly connected to the gear via the rotating shaft, and the worm gear is rotatably mounted to the housing.

[0011] As a further embodiment of this utility model: a worm is provided on the outer side of the worm gear, the worm is rotatably mounted on the top surface of the housing, a third bevel gear is fixedly connected to the middle of the worm, a fourth bevel gear is provided on the outer side of the third bevel gear for meshing and transmission, the fourth bevel gear is fixedly connected to the output end of the second motor, and the second motor is fixedly connected to the top surface of the housing.

[0012] As a further embodiment of this utility model: a switch controller and a mobile power supply are also fixedly installed on the top surface of the housing. The first motor and the second motor are both electrically connected to the switch controller and the mobile power supply through wires. The switch controller is electrically connected to the mobile power supply through wires. The switch controller is a wireless remote control switch that is wirelessly connected to an external wireless remote control device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model is driven by a first motor, and the first bevel gear and the second bevel gear work together to drive the bidirectional threaded rod to rotate. The extension sleeve itself can slide inside the housing and work with the threaded sleeve to create a moving effect. During the movement of the extension sleeve, the positioning pin and the arc-shaped notch work together to drive the lifting seat to move. The lifting seat is connected to the rotating arm through the sliding rod, so that the installation spacing of the lifting rope can be adjusted, thus making it convenient to adapt to the lifting needs of different spacing widths.

[0015] 2. Driven by the second motor, the third and fourth bevel gears work together to drive the worm to rotate. The worm drives the worm wheel, which in turn drives the gear to rotate. The gear drives the rotating arm to rotate through the gear ring. The rotating arm drives the lifting seat to rotate synchronously through the slide rod, thereby realizing the adjustment of the lifting rope deflection angle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a low-altitude adjustable cable crane.

[0017] Figure 2 This is a diagram illustrating a low-altitude adjustable cable hoisting frame.

[0018] Figure 3 This is an internal view of a low-altitude adjustable cable crane.

[0019] Figure 4 This is a cross-sectional view of a low-altitude adjustable cable crane.

[0020] Figure 5 This is a three-dimensional view of a low-altitude adjustable cable crane.

[0021] In the diagram: 1. Lifting mechanism; 2. Lifting frame; 3. Lifting rope; 4. Housing; 5. Extension sleeve; 6. Rotating arm; 7. Slide rod; 8. Lifting seat; 9. Arc-shaped notch; 10. Positioning pin; 11. Double-threaded rod; 12. Threaded sleeve; 13. First bevel gear; 14. Second bevel gear; 15. First motor; 16. Gear ring; 17. Gear; 18. Worm gear; 19. Worm; 20. Third bevel gear; 21. Fourth bevel gear; 22. Second motor; 23. Switch controller; 24. Mobile power supply. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5In this embodiment of the present invention, a low-altitude adjustable cable hoist includes a hoisting mechanism 1 and a hoisting frame 2 connected below the hoisting mechanism 1. A hoisting rope 3 is connected to the hoisting frame 2. The hoisting frame 2 includes a housing 4. An extension sleeve 5 adapted to the housing 4 is symmetrically slidably connected inside the housing 4. A rotating arm 6 is rotatably connected to the center of the housing 4 via a rotating shaft. A sliding rod 7 adapted to the rotating arm 6 is slidably connected to the inner side of the rotating arm 6. An insertion cavity for the sliding rod 7 to be inserted and slidably connected is provided on the rotating arm 6. A hanging seat 8 is fixedly connected to the end of the sliding rod 7. Both the hanging seat 8 and the rotating arm 6 can be inserted into the extension sleeve 5 and slide close to each other. An arc-shaped notch 9 for the hoisting rope 3 to avoid the hanging seat 8 is provided on the bottom surface of the extension sleeve 5. A positioning pin 10 adapted to the arc-shaped notch 9 is fixedly connected to the bottom surface of the hanging seat 8 corresponding to the arc-shaped notch 9. The positioning pin 10 is movably disposed in the arc-shaped notch 9. The hoisting rope 3 is fixedly connected to the bottom surface of the positioning pin 10.

[0024] A bidirectional threaded rod 11 is rotatably mounted on one side of the top surface of the housing 4. Both ends of the bidirectional threaded rod 11 are threadedly connected to threaded sleeves 12 that are compatible with it. The ends of the threaded sleeves 12 are fixedly connected to the extension sleeve 5 through connecting ears. A first bevel gear 13 is fixedly connected to the middle part of the bidirectional threaded rod 11. A second bevel gear 14 that meshes with the first bevel gear 13 is provided on the outside of the first bevel gear 13. The second bevel gear 14 is fixedly mounted on the output end of the first motor 15. The first motor 15 is fixedly mounted on the top surface of the housing 4.

[0025] Driven by the first motor 15, the first bevel gear 13 and the second bevel gear 14 work together to drive the bidirectional threaded rod 11 to rotate. The extension sleeve 5 can slide inside the housing 4 in conjunction with the drive of the threaded sleeve 12 to create a moving effect. During the movement of the extension sleeve 5, the positioning pin 10 and the arc-shaped notch 9 work together to drive the lifting seat 8 to move. The lifting seat 8 is connected to the rotating arm 6 through the slide rod 7, thereby adjusting the installation spacing of the lifting rope 3 to facilitate the use of lifting requirements with different spacing widths.

[0026] Both ends of the rotating arm 6 are fixedly fitted with a toothed ring 16. The toothed ring 16 has the same diameter and number of teeth. The toothed rings 16 are symmetrically and concentrically arranged. The outer side of each toothed ring 16 is provided with a gear 17 that meshes with it for transmission. The extension sleeve 5 is provided with a clearance groove corresponding to the gear 17. The rotating arm 6 is provided with a clearance groove for the toothed ring 16 to be fitted and the gear 17 to be installed.

[0027] Gear 17 is rotatably mounted to housing 4 via a rotating shaft. The top of the rotating shaft rotates through housing 4 and is fixedly connected to a worm gear 18. The worm gear 18 is fixedly connected to gear 17 via the rotating shaft and is rotatably mounted to housing 4.

[0028] A worm 19 is provided on the outer side of the worm gear 18. The worm 19 is rotatably mounted on the top surface of the housing 4. A third bevel gear 20 is fixedly connected to the middle of the worm 19. A fourth bevel gear 21 that meshes with the third bevel gear 20 is provided on the outer side of the third bevel gear 20. The fourth bevel gear 21 is fixedly connected to the output end of the second motor 22. The second motor 22 is fixedly connected to the top surface of the housing 4.

[0029] The top surface of the housing 4 is also fixedly installed with a switch controller 23 and a power supply 24. The first motor 15 and the second motor 22 are both electrically connected to the switch controller 23 and the power supply 24 through wires. The switch controller 23 is electrically connected to the power supply 24 through wires. The switch controller 23 is a wireless remote control switch that can wirelessly connect to external wireless remote control devices.

[0030] Driven by the second motor 22, the third bevel gear 20 and the fourth bevel gear 21 work together to drive the worm gear 19 to rotate. The worm gear 19 drives the worm wheel 18, which in turn causes the gear 17 to rotate. The gear 17 drives the rotating arm 6 to rotate through the gear ring 16. The rotating arm 6 drives the lifting seat 8 to deflect synchronously through the slide rod 7, thereby realizing the adjustment of the deflection angle of the lifting rope 3.

[0031] This device achieves angular deflection by driving the worm wheel 18 to rotate through the worm 19. With the cooperation of the worm 19 and the worm wheel 18, a self-locking effect can be formed.

[0032] The working principle of this utility model is as follows:

[0033] In use, the first motor 15 operates, driving the second bevel gear 14 to rotate. The second bevel gear 14, through the first bevel gear 13, drives the bidirectional threaded rod 11 to rotate. The extension sleeve 5 is slidably connected to the housing 4, so the rotating bidirectional threaded rod 11, in conjunction with the threaded sleeve 12, can drive the extension sleeve 5 and the housing 4 to adjust their sliding positions. During the movement of the extension sleeve 5, the lifting seat 8 moves through the cooperation of the arc-shaped notch 9 and the positioning pin 10. The lifting seat 8 extends outward relative to the rotating arm 6 via the slide rod 7, thereby adjusting the spacing of the lifting rope 3. Furthermore, when it is necessary to adjust the angle... When adjusting the angle, the second motor 22 works, driving the fourth bevel gear 21 to rotate. The fourth bevel gear 21 drives the worm gear 19 to rotate through the third bevel gear 20. The worm gear 19 drives the worm wheel 18 to rotate, and the worm wheel 18 drives the gear 17 to rotate. The gear 17 drives the rotating arm 6 to rotate through the engagement of the gear ring 16. The rotating arm 6 drives the lifting seat 8 to deflect and move through the slide rod 7. During the deflection and movement of the lifting seat 8, the positioning pin 10 slides along the arc-shaped notch 9. At this time, the slide rod 7 slides slightly in the cavity of the rotating arm 6 to avoid jamming, thereby realizing the adjustment of the lifting deflection angle.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-altitude adjustable cable crane, comprising a hoisting mechanism (1) and a hoisting frame (2) connected below the hoisting mechanism (1), wherein a hoisting rope (3) is connected to the hoisting frame (2), characterized in that: The hoisting frame (2) includes a housing (4), and an extension sleeve (5) adapted to it is symmetrically slidably connected inside the housing (4). A rotating arm (6) is rotatably connected at the center of the housing (4) via a rotating shaft. A sliding rod (7) adapted to it is slidably connected to the inner side of the rotating arm (6). A hanging seat (8) is fixedly connected to the end of the sliding rod (7). Both the hanging seat (8) and the rotating arm (6) can be inserted into the extension sleeve (5) and slide in close contact. The bottom surface of the extension sleeve (5) is provided with an arc-shaped notch (9) for the hoisting rope (3) to avoid. A positioning pin (10) adapted to the arc-shaped notch (9) is fixedly connected to the bottom surface of the hanging seat (8). The positioning pin (10) is movably set in the arc-shaped notch (9). The hoisting rope (3) is fixedly connected to the bottom surface of the positioning pin (10). A bidirectional threaded rod (11) is rotatably mounted on one side of the top surface of the housing (4). Both ends of the bidirectional threaded rod (11) are threadedly connected to threaded sleeves (12) that are compatible with it. The end of the threaded sleeve (12) is fixedly connected to the extension sleeve (5) through a connecting ear. A first bevel gear (13) is fixedly connected to the middle part of the bidirectional threaded rod (11). A second bevel gear (14) that meshes with the first bevel gear (13) is provided on the outside of the first bevel gear (13). The second bevel gear (14) is fixedly mounted on the output end of the first motor (15). The first motor (15) is fixedly mounted on the top surface of the housing (4).

2. The low-altitude adjustable cable crane according to claim 1, characterized in that: Both ends of the rotating arm (6) are fixedly embedded with a toothed ring (16). The toothed ring (16) has the same diameter and number of teeth. The toothed rings (16) are arranged symmetrically and concentrically. The outer side of the toothed ring (16) is provided with a gear (17) that meshes with it for transmission. The extension sleeve (5) is provided with a clearance groove corresponding to the gear (17).

3. A low-altitude adjustable cable crane according to claim 2, characterized in that: The gear (17) is rotatably mounted to the housing (4) via a rotating shaft. The top of the rotating shaft rotates through the housing (4) and is then fixedly connected to a worm gear (18). The worm gear (18) is fixedly connected to the gear (17) via the rotating shaft and is rotatably mounted to the housing (4).

4. A low-altitude adjustable cable crane according to claim 3, characterized in that: The worm gear (18) is provided with a worm (19) on its outer side. The worm (19) is rotatably mounted on the top surface of the housing (4). A third bevel gear (20) is fixedly connected to the middle of the worm (19). A fourth bevel gear (21) is provided on the outer side of the third bevel gear (20) for meshing and transmission. The fourth bevel gear (21) is fixedly connected to the output end of the second motor (22). The second motor (22) is fixedly connected to the top surface of the housing (4).

5. A low-altitude adjustable cable crane according to claim 1, characterized in that: The top surface of the housing (4) is also fixedly installed with a switch controller (23) and a mobile power supply (24).

Images