Lightweight crane capable of rapidly and accurately positioning
The limiting of the wire rope or chain through the limiting ring and threaded sleeve structure solves the problem of inaccurate positioning during crane lifting, and the rapid positioning of the hook is achieved and human intervention is reduced, and labor intensity is reduced.
Patent Information
- Application Number
- CN202422661185.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
During the hoisting process of existing cranes, the shaking of the wire rope or chain leads to inaccurate positioning, and it is difficult to quickly position the hook when it rotates, so it requires manual adjustment to increase labor intensity.
The limit ring and threaded sleeve structure are adopted to limit the wire rope or chain through the limit ring. The threaded rod is used to drive the threaded sleeve to drive the limit rod into the limit hole of the hook to achieve rapid positioning of the hook.
The positioning accuracy of hooks and objects is improved, the need for artificial adjustments is reduced, and the labor intensity is reduced.
Smart Images
Figure CN223239611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cranes, in particular to a lightweight crane that can be positioned quickly and accurately. Background Art
[0002] As the industry continues to upgrade, faster, more automated, and greener cranes are increasingly being developed. The drawbacks of traditional cranes are becoming increasingly apparent. The current trend toward automation and intelligentization demands more precise and stable positioning.
[0003] In the prior art, during the lifting process of current cranes, the wire rope or chain is prone to shaking due to the lifting, so it is difficult to accurately locate the position between the lifted object and the sling. At the same time, during the lifting process, the hook is rotatably mounted on the mounting frame, so the movement of the trolley may cause the hook to rotate, and then the hook cannot be quickly positioned between the objects lifted. Repeated manual adjustments and interventions are required, which not only wastes time but also increases the labor intensity of the staff. Utility Model Content
[0004] The purpose of the present invention is to provide a lightweight crane that can be quickly and accurately positioned to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a lightweight crane that can be quickly and accurately positioned, comprising: a main beam, a connecting frame installed in the middle of the main beam, the lower side of the connecting frame is fixedly connected to the limit frame, and a limit ring is arranged in the limit frame.
[0006] A wire drum is provided on the lower side of the limiting ring, and mounting frames are fixedly connected on both sides of the wire drum. A rotating sleeve at the bottom of the mounting frame is provided with a hook, and a limiting hole is opened on the top of the hook. Limiting rods are provided on both sides of the limiting hole, and a threaded sleeve is installed on one side of the limiting rod, and a threaded rod is provided inside the threaded sleeve.
[0007] Preferably, the upper surfaces at both ends of the main beam are fixedly connected to the driving frame, and drivers are fixedly installed at both ends of the upper surface of the driving frame.
[0008] Preferably, an end beam is installed on one side of the driver, both ends of the end beam are fixedly connected to the longitudinal beam, the upper surface of the end beam is fixedly connected to the fastening beam, and four limit frames are provided and are arranged symmetrically in pairs about the central plane of the connecting frame.
[0009] Preferably, a trolley is fixedly installed on one side of the connecting frame, a wire pay-off machine is fixedly installed on the other side of the connecting frame, and a buffer is fixedly connected between the bottom of the limiting frame and the limiting ring, and the buffers are arranged in a circular array.
[0010] Preferably, a fixing plate is provided on the lower side of the buffer, one side of the fixing plate is fixedly connected to the mounting frame, a micro motor is fixedly mounted on the other side of the fixing plate, and the output end of the micro motor is fixedly connected to one end of the threaded rod.
[0011] Preferably, the threaded rod is rotatably sleeved in the fixed plate, the bottom of the threaded sleeve is slidably connected to the limiting rail, both ends of the limiting rail are fixedly connected to the fixed plate, and the limiting rod and the threaded sleeve are fixedly connected via a connecting sleeve.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The main beam provides stable support for the connecting frame. Before the wire rope or chain is wound around the wire reel, it is first passed through the limit ring, and the limit ring is indirectly limited by the limit frame, so that the limit ring limits the wire rope or chain, thereby reducing the shaking of the wire rope or chain during the lifting of the hook, thereby improving the positioning accuracy. When the hook is lifting objects, the threaded sleeve is driven to move on it by the rotation of the threaded rod, so that the threaded sleeve indirectly drives the limit rod to move. The threaded sleeves are arranged symmetrically in opposite directions, so that the two threaded sleeves move toward each other, and the threaded sleeve then indirectly drives the limit rod to insert into the limit hole, thereby limiting the hook rotatably mounted on the mounting frame, so that the hook and the lifted object can be quickly positioned, avoiding the need for repeated manual adjustment and intervention, which not only wastes time but also increases the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 For this utility model Figure 1 A magnified schematic diagram of the structure in the middle;
[0016] Figure 3 This is a bottom view schematic diagram of the overall structure of the utility model;
[0017] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0018] In the figure: 1. Main beam; 2. Connecting frame; 3. Limiting frame; 4. Limiting ring; 5. Wire drum; 6. Mounting frame;
[0019] 7. Hook; 8. Limiting hole; 9. Limiting rod; 10. Threaded sleeve; 11. Threaded rod; 12. Driving frame;
[0020] 13. Drive; 14. End beam; 15. Longitudinal beam; 16. Fastening beam; 17. Trolley; 18. Pay-off machine;
[0021] 19. Buffer; 20. Fixing plate; 21. Micro motor; 22. Limit rail; 23. Connecting sleeve. DETAILED DESCRIPTION
[0022] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] Example 1: Please refer to Figures 1-4 The utility model provides a technical solution: a lightweight crane that can be positioned quickly and accurately, comprising: a main beam 1, a connecting frame 2 is installed in the middle of the main beam 1, the lower side of the connecting frame 2 is fixedly connected to the limit frame 3, a limit ring 4 is arranged in the limit frame 3, a wire drum 5 is arranged on the lower side of the limit ring 4, and mounting frames 6 are fixedly connected on both sides of the wire drum 5, a rotating sleeve at the bottom of the mounting frame 6 is provided with a hook 7, a limit hole 8 is provided on the top of the hook 7, limit rods 9 are provided on both sides of the limit hole 8, a threaded sleeve 10 is installed on one side of the limit rod 9, and a threaded rod 11 is sleeved inside the threaded sleeve 10.
[0024] The main beam 1 provides a stable support for the connecting frame 2. Before the wire rope or chain is wound around the wire drum 5, it is first passed through the limit ring 4, and the limit ring 4 is indirectly limited by the limit frame 3, so that the limit ring 4 limits the wire rope or chain, thereby reducing the shaking of the wire rope or chain during the lifting of the hook 7, thereby improving the positioning accuracy. When the hook 7 is lifting an object, the rotation of the threaded rod 11 drives the threaded sleeve 10 to move thereon, so that the threaded sleeve 10 indirectly drives the limit rod 9 to move. The threaded sleeves 10 are arranged symmetrically in reverse, so that the two threaded sleeves 10 move toward each other, and the threaded sleeve 10 further indirectly drives the limit rod 9 to be inserted into the limit hole 8, thereby limiting the hook 7 rotatably mounted on the mounting frame 6, so that the hook 7 and the hoisted object can be quickly positioned, avoiding the need for repeated manual adjustment and intervention, which not only wastes time but also increases the labor intensity of the staff.
[0025] Embodiment 2: On the basis of embodiment 1, the upper surfaces at both ends of the main beam 1 are fixedly connected to the driving frame 12, and drivers 13 are fixedly installed at both ends of the upper surface of the driving frame 12. The hook and the hoisted object cannot be quickly positioned, and manual adjustment intervention is required, which not only wastes time but also increases the labor intensity of the staff. The driving frame 12 is fixedly installed on both sides of the upper surface of the main beam 1. The driving frame 12 is driven to move by the driver 13 fixedly installed on the driving frame 12, so that the driving frame 12 drives the main beam 1 to move. The driver 13 includes a driving motor, and a driving wheel is fixedly sleeved on the output end of the driving motor. Driven wheels are installed on both sides of the driving wheel. The driven wheels are symmetrically arranged on both sides of the driving frame 12. An end beam 14 is installed on one side of the driver 13. The two ends of the end beam 14 are fixedly connected to the longitudinal beam 15. The end beam The upper surface of 14 is fixedly connected to the fastening beam 16, four limit frames 3 are provided and are arranged symmetrically in pairs about the central plane of the connecting frame 2, and limit slots are opened on both sides of the end beam 14. The limit slots are slidably connected to the driving wheel and the driven wheel, so that the driving frame 12 is driven to move by the driving wheel and the driven wheel, and the driving frame 12 drives the main beam 1 to move. A trolley 17 is fixedly installed on one side of the connecting frame 2, and a wire-paying machine 18 is fixedly installed on the other side of the connecting frame 2. A buffer 19 is fixedly connected between the bottom of the limit frame 3 and the limit ring 4, and the buffer 19 is arranged in a circular array, one side of the connecting frame 2 is fixed to the trolley 17, and the other side of the connecting frame 2 is fixed to the wire-paying machine 18. One end of the limit frame 3 is fixedly connected to the connecting frame 2, and the other end of the limit frame 3 is fixedly connected to the outer ring surface of the limit ring 4 through the buffer 19.
[0026] The driver 13, the trolley 17 and the pay-off machine 18 are electrically connected to the external terminal control equipment. The longitudinal beam 15 is fixedly connected to the top of the plant. The longitudinal beam 15 is fixedly installed at both ends of the end beam 14 to provide fixed support for the end beam 14. At the same time, a fastening beam 16 is arranged in a linear array on the upper surface of the end beam 14. By setting the fastening beam 16, the strength and stability of the entire structure can be enhanced, and the shaking and deformation of the entire crane during the movement can be reduced, which is convenient for controlling the accuracy and stability of the movement. The driver 13 drives the entire main beam 1 to move, thereby indirectly driving the hook 7 to move in one direction, and then through The drive of the trolley 17 indirectly drives the hook 7 to move in another direction, so as to facilitate the lifting of objects in different positions. Before the wire rope or chain is wound around the wire drum 5, it is first passed through the inner ring surface of the limit ring 4, and the limit ring 4 is indirectly limited by the limit frame 3. The outer ring surface of the limit ring 4 is fixedly connected to one end of the buffer 19, and the other end of the buffer 19 is fixedly connected to one end of the limit frame 3. Therefore, during the lifting process, the wire rope or chain will abut against the inner wall of the limit ring 4, thereby squeezing the buffer 19 for buffering, thereby reducing the swing amplitude of the wire rope or chain, and facilitating precise positioning.
[0027] Embodiment 3: On the basis of embodiment 2, a fixing plate 20 is provided on the lower side of the buffer 19, one side of the fixing plate 20 is fixedly connected to the mounting frame 6, and a micro motor 21 is fixedly installed on the other side of the fixing plate 20, the output end of the micro motor 21 is fixedly connected to one end of the threaded rod 11, the fixing plate 20 is symmetrically arranged about the mounting frame 6, the micro motor 21 is electrically connected to the external terminal control device, the fixing plate 20 fixes the micro motor 21, and the fixing plate 20 limits the threaded rod 11, the threaded rod 11 is rotatably sleeved in the fixing plate 20, the bottom of the threaded sleeve 10 is slidably connected to the limiting rail 22, both ends of the limiting rail 22 are fixedly connected to the fixing plate 20, the limiting rod 9 and the threaded sleeve 10 are fixedly connected by a connecting sleeve 23, the limiting rail 22 is fixedly installed on the inner wall of the fixing plate 20, so that the threaded sleeve 10 is limited by the limiting rail 22, the limiting hole 8 passes through both sides of the mounting frame 6, and the limiting hole 8 is slidably connected to the limiting rod 9.
[0028] When the hook 7 is hoisting an object, the micro motor 21 is started, thereby causing the micro motor 21 to drive the threaded rod 11 to rotate, and the threaded rod 11 thereby rotates under the limit of the fixed plate 20, and the threaded rod 11 thereby drives the threaded sleeve 10 mounted thereon to move, and the threaded sleeve 10 moves toward the direction close to the hook 7 under the limit of the limit rail 22. The threaded sleeve 10 is arranged on both sides of the hook 7, so that the threaded sleeve 10 drives the limit rod 9 to be inserted into the limit hole 8 under the connection action of the connecting sleeve 23, thereby limiting the limit hole 8 through the limit rod 9, and locking the hook 7 rotatably mounted on the mounting frame 6 to prevent the hook 7 from rotating, thereby allowing the hook 7 to be quickly positioned with respect to the hoisted object, avoiding the need for repeated manual adjustment and intervention, which not only wastes time but also increases the labor intensity of the staff.
[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lightweight crane capable of rapid and precise positioning, comprising a main beam (1), characterized in that: A connecting frame (2) is installed in the middle of the main beam (1), the lower side of the connecting frame (2) is fixedly connected to the limiting frame (3), and a limiting ring (4) is provided in the limiting frame (3); A wire drum (5) is provided on the lower side of the limiting ring (4), and mounting frames (6) are fixedly connected to both sides of the wire drum (5). A hook (7) is provided on the bottom of the mounting frame (6) for rotation, and a limiting hole (8) is provided on the top of the hook (7). Limiting rods (9) are provided on both sides of the limiting hole (8), and a threaded sleeve (10) is provided on one side of the limiting rod (9), and a threaded rod (11) is provided inside the threaded sleeve (10).
2. A lightweight crane capable of rapid and precise positioning according to claim 1, characterized in that: The upper surfaces at both ends of the main beam (1) are fixedly connected to the driving frame (12), and drivers (13) are fixedly installed at both ends of the upper surface of the driving frame (12).
3. A lightweight crane capable of rapid and precise positioning according to claim 2, characterized in that: An end beam (14) is installed on one side of the driver (13), both ends of the end beam (14) are fixedly connected to the longitudinal beam (15), and the upper surface of the end beam (14) is fixedly connected to the fastening beam (16). Four limit frames (3) are provided and are arranged symmetrically in pairs about the central plane of the connecting frame (2).
4. A lightweight crane capable of rapid and precise positioning according to claim 3, characterized in that: A trolley (17) is fixedly mounted on one side of the connecting frame (2), a wire-releasing machine (18) is fixedly mounted on the other side of the connecting frame (2), and a buffer (19) is fixedly connected between the bottom of the limiting frame (3) and the limiting ring (4), and the buffers (19) are arranged in a circular array.
5. The lightweight crane capable of rapid and accurate positioning according to claim 4, characterized in that: A fixing plate (20) is provided on the lower side of the buffer (19), one side of the fixing plate (20) is fixedly connected to the mounting frame (6), and a micro motor (21) is fixedly installed on the other side of the fixing plate (20), and the output end of the micro motor (21) is fixedly connected to one end of the threaded rod (11).
6. The lightweight crane capable of rapid and accurate positioning according to claim 5, characterized in that: The threaded rod (11) is rotatably sleeved in the fixed plate (20), the bottom of the threaded sleeve (10) is slidably connected to the limiting rail (22), both ends of the limiting rail (22) are fixedly connected to the fixed plate (20), and the limiting rod (9) and the threaded sleeve (10) are fixedly connected via a connecting sleeve (23).