Splicing type cantilever crane

The height of the cantilever crane is adjusted by a motor-driven gear and threaded column structure, and the boom and support column can be quickly spliced ​​using fixed components, which solves the problem that traditional cantilever cranes cannot adjust their height and improves the applicability and safety of the cantilever crane.

CN223409266UActive Publication Date: 2025-10-03HENAN RIVER CRANE CO LTD
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Patent Information

Application Number
CN202422231252.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-10-03
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

Traditional cantilever cranes cannot adjust their height according to usage requirements, resulting in the need for additional equipment or manpower to adapt to lifting requirements when dealing with cargo of different sizes or heights, increasing operational complexity and costs.

Method used

The motor, rotating column, gear and threaded column structure are used to achieve cantilever crane height adjustment, and the fast splicing of the boom and support column is achieved through the fixing components, including the coordination of the fixing seat, connecting seat, mounting pin, sliding column and spring.

Benefits of technology

The height of the cantilever crane is adjustable, which improves its applicability, reduces safety hazards through rapid splicing, and enhances the flexibility and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cantilever cranes, and discloses a splicing type cantilever crane which comprises a fixed column, the outer wall of the fixed column is connected with a supporting column in a sliding mode, the outer wall of the supporting column is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating column, and the rotating column is rotationally connected into the supporting column. A first gear is fixedly connected to the outer wall of the rotating column, a supporting plate is fixedly connected to the interior of the supporting column, a connecting column is rotationally connected to the interior of the supporting plate, a second gear is fixedly connected to the top end of the connecting column and meshed with the rotating column, and a threaded column is fixedly connected to the bottom end of the connecting column. According to the cantilever crane, the supporting column is driven to work through the motor and the rotating column, the effect of adjusting the height of the cantilever crane is achieved, and the problems that the height of the cantilever crane cannot be adjusted according to the use requirement, and additional equipment or manpower is needed to meet the hoisting requirement when goods of different sizes or heights are faced are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cantilever cranes, in particular to a spliced ​​cantilever crane. Background Art

[0002] A cantilever crane is a common type of industrial lifting equipment. Its main feature is its cantilever design, where the boom is supported at only one end, while the other end is suspended. This structure enables the cantilever crane to effectively carry out cargo handling and lifting operations in a limited space without the need for a symmetrical support structure. In practical applications, cantilever cranes are widely used in places such as docks, factory workshops, and warehouses where fast and flexible cargo loading and unloading are required. They can cover a wide range of operating areas and have high transportation efficiency and operational flexibility. The cantilever crane is designed to adjust the boom length and lifting capacity according to specific needs, adapting to cargo lifting tasks of different sizes and weights.

[0003] Traditional cantilever cranes usually consist of a support structure and a cantilever. The support structure includes support columns or support beams fixed to the ground or building structure, providing stable support for the cantilever crane. The cantilever is the cantilevered part extending from the support structure. The end of the cantilever is equipped with lifting equipment such as a hook, electric hoist or other lifting mechanism for lifting and handling cargo.

[0004] However, the structure of traditional cantilever cranes is relatively simple and can often only be fixed at one height. The height of the cantilever crane cannot be adjusted according to usage requirements. As a result, when facing goods of different sizes or heights, operators need additional equipment or manpower to adapt to the lifting requirements, which increases the complexity and cost of operation. Therefore, a spliced ​​cantilever crane is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a spliced ​​cantilever crane, which aims to improve the problem in the existing technology that the height of the cantilever crane cannot be adjusted according to usage requirements, resulting in the need for additional equipment or manpower to adapt to the lifting requirements when facing goods of different sizes or heights.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The gear train is connected with the gear abutting the support frame, and the gear train is connected with the gear train by the fixed axis, and the fixed axis is connected with the gear train of the said motor.

[0008] As a further description of the above technical solution:

[0009] The fixing assembly includes a fixing seat and a connecting seat, the fixing seat is fixedly connected to the outer wall of the support column, the connecting seat is slidably connected to one side of the fixing seat, and the connecting seat and the fixing seat are both slidably connected with a mounting pin;

[0010] As a further description of the above technical solution:

[0011] A sliding column is slidably connected inside the mounting pin, and a button is fixedly connected to one end of the sliding column;

[0012] As a further description of the above technical solution:

[0013] A connecting ring is fixedly connected to the outer wall of the sliding column, and the connecting ring is slidably connected to the inside of the mounting pin;

[0014] As a further description of the above technical solution:

[0015] A spring is provided at one end of the connecting ring, and one end of the spring is fixedly connected to the inside of the mounting pin;

[0016] As a further description of the above technical solution:

[0017] One end of the sliding column is fixedly connected to a transmission column, and one end of the transmission column is fixedly connected to a cone head;

[0018] As a further description of the above technical solution:

[0019] A card bead is slidably connected inside the mounting pin, the cone head contacts the card bead, and the card bead is slidably connected to one side of the fixing seat;

[0020] As a further description of the above technical solution:

[0021] A rotating rod is rotatably connected inside the connecting seat, an outer wall of the rotating rod is fixedly connected to a boom, and an outer wall of the boom is fixedly connected to an electric hoist.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the support column structure is driven to work by the motor and the rotating column, the first gear, the support plate, the connecting column, the second gear and the threaded column structure, so that the height of the cantilever crane can be adjusted. This solves the problem that the height of the cantilever crane cannot be adjusted according to the use requirements, resulting in the need for additional equipment or manpower to adapt to the lifting requirements when facing goods of different sizes or heights, thereby improving the applicability of the cantilever crane.

[0024] 2. In the utility model, with the cooperation of the fixed seat and the connecting seat, the mounting pin, the sliding column, the spring and the cone head structure, the card beads work, and the effect of quickly splicing the boom and the support column is achieved, which solves the problem that the cantilever cranes cannot be spliced ​​or connected quickly and effectively, which may lead to safety hazards during the operation of the equipment and even cause accidents, thereby improving the flexibility of the cantilever crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a spliced ​​cantilever crane proposed in the utility model;

[0026] Figure 2 This is a schematic diagram of the outer wall structure of the support column of a spliced ​​cantilever crane proposed in the present invention;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the support column of a spliced ​​cantilever crane proposed in the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of a connecting base of a spliced ​​cantilever crane proposed in the present invention;

[0029] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of the installation pin of the spliced ​​cantilever crane proposed by the present invention.

[0030] Legend:

[0031] 1. Fixed column; 2. Support column; 3. Motor; 4. Rotating column; 5. Gear 1; 6. Support plate; 7. Connecting column; 8. Gear 2; 9. Threaded column; 10. Fixed block; 11. Fixed seat; 12. Connecting seat; 13. Mounting pin; 14. Sliding column; 15. Button; 16. Connecting ring; 17. Spring; 18. Transmission column; 19. Cone head; 20. Card bead; 21. Rotating rod; 22. Boom; 23. Electric hoist. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment of a splicing cantilever crane, comprising a fixed column 1, the outer wall of the fixed column 1 is slidingly connected to a support column 2, the outer wall of the support column 2 is fixedly connected to a motor 3, the output end of the motor 3 is fixedly connected to a rotating column 4, the rotating column 4 is rotatably connected to the inside of the support column 2, the outer wall of the rotating column 4 is fixedly connected to a gear 1 5, the inside of the support column 2 is fixedly connected to a support plate 6, the inside of the support plate 6 is rotatably connected to a connecting column 7, the top of the connecting column 7 is fixedly connected to a gear 2 8, the gear 2 8 is meshed with the rotating column 4, the bottom end of the connecting column 7 is fixedly connected to a threaded column 9, the top of the fixed column 1 is fixedly connected to a fixed block 10, the outer walls of the threaded columns 9 are threadedly connected to the fixed block 10 and the inside of the fixed column 1, the outer wall of the support column 2 is provided with a fixing assembly, and the connecting assembly is used to splice the cantilever crane.

[0034] Specifically, when the height of the cantilever crane needs to be adjusted, first, the motor 3 drives the rotating column 4 through its output end to rotate inside the support column 2. The rotating column 4 is connected to the gear 1 5 connected to the outer wall, and then rotates the gear 1 5. The gear 1 5 drives the gear 2 8 meshing with it to rotate. The movement of the gear 2 8 acts on the connecting column 7 connected to the bottom to rotate inside the support plate 6. At the same time, the movement of the connecting column 7 also drives the threaded column 9 connected to the bottom to move up and down between the fixed block 10 and the fixed column 1. Due to the threaded relationship between the threaded column 9 and the fixed block 10, the up and down movement of the threaded column 9 causes the connecting column 7 to move at the top. The movement of the connecting column 7 further drives the support plate 6 and the gear 2 8 to move accordingly. The movement of the support plate 6 eventually causes the support column 2 connected to the outer wall to slide on the outer wall of the fixed column 1. Through this process, the height of the cantilever crane can be adjusted to meet different working requirements and environmental conditions.

[0035] Reference Figure 4 and Figure 5The fixing assembly includes a fixing seat 11 and a connecting seat 12. The fixing seat 11 is fixedly connected to the outer wall of the support column 2, and the connecting seat 12 is slidably connected to one side of the fixing seat 11. The connecting seat 12 and the fixing seat 11 are both slidably connected with a mounting pin 13. The mounting pin 13 is slidably connected with a sliding column 14. One end of the sliding column 14 is fixedly connected to a button 15. The outer wall of the sliding column 14 is fixedly connected to a connecting ring 16. The connecting ring 16 is slidably connected to the inside of the mounting pin 13. A spring 17 is provided at one end of the connecting ring 16. One end of the spring 17 is fixedly connected to the inside of the mounting pin 13. One end of the sliding column 14 is fixedly connected to a transmission column 18.

[0036] Specifically, when splicing the boom 22 and the support column 2, first, the connecting seat 12 is accurately fitted on the fixing seat 11 on the outer wall of the support column 2. Then, the button 15 is pressed to make the sliding column 14 start to slide inside the mounting pin 13 and push the connecting ring 16 to move. The connecting ring 16 squeezes and contracts the spring 17. At the same time, the sliding column 14 also drives the transmission column 18 to move, thereby achieving the effect of motion transmission.

[0037] Reference Figure 4 and Figure 5 A cone head 19 is fixedly connected to one end of the transmission column 18, and a card bead 20 is slidably connected inside the mounting pin 13. The cone head 19 contacts the card bead 20, and the card bead 20 is slidably connected to one side of the fixed seat 11. A rotating rod 21 is rotatably connected inside the connecting seat 12, and the outer wall of the rotating rod 21 is fixedly connected to the boom 22, and the outer wall of the boom 22 is fixedly connected to the electric hoist 23.

[0038] Specifically, the transmission column 18 drives the cone head 19 to slide inside the mounting pin 13, and finally releases the card bead 20. Once the card bead 20 is released, the mounting pin 13 can be inserted into the mounting hole between the fixing seat 11 and the connecting seat 12. After releasing the button 15, the rebound effect of the connecting ring 16 causes the sliding column 14, the transmission column 18 and the cone head 19 to return to their original positions. During the sliding process of the cone head 19, the card bead 20 is squeezed and fixed on one side of the fixing seat 11, ensuring the firm connection between the boom 22 and the support column 2, and achieving the effect of quick splicing.

[0039] Working principle: When the height of the cantilever crane needs to be adjusted, the output end of the motor 3 first drives the rotating column 4 to rotate inside the support column 2. The rotating column 4 is subjected to force to drive the gear 1 5 connected to the outer wall to rotate. The gear 1 5 is subjected to force to drive the gear 2 8 meshing with it to rotate. The gear 2 8 is subjected to force to drive the connecting column 7 connected to the bottom to rotate inside the support plate 6. At the same time, the connecting column 7 will also drive the threaded column 9 connected to the bottom to rotate inside the fixed block 10 and the fixed column 1. Through the threaded relationship between the threaded column 9 and the fixed block 10, the threaded column 9 is caused to move up and down inside the fixed block 10. The threaded column 9 is subjected to force to drive the connecting column 7 at the top to move. The connecting column 7 is subjected to force to drive the support plate 6 and gear 2 8 to move. The support plate 6 then drives the support column 2 connected to the outer wall to slide on the outer wall of the fixed column 1. The cantilever crane on the outer wall is driven to move through the fixed column 1, thereby achieving the effect of adjusting the height of the cantilever crane according to needs. When it is necessary to splice the boom 22 and the support column 2, first fit the connecting seat 12 against the outer wall of the support column 2. The button 15 is then pressed on the fixing seat 11, so that the sliding column 14 is forced to slide inside the mounting pin 13. The sliding column 14 is forced to drive the connecting ring 16 connected to the outer wall to move. The connecting ring 16 is forced to squeeze the spring 17 connected to one end to make it shrink. At the same time, the sliding column 14 also drives the transmission column 18 connected to one end to move. The transmission column 18 is forced to drive the cone head 19 connected to one end to slide inside the mounting pin 13. Through the sliding of the cone head 19, the card bead 20 inside the mounting pin 13 is released, so that it slides into the mounting pin 13. Inside the pin 13, the mounting pin 13 is inserted into the mounting hole between the fixing seat 11 and the connecting seat 12, and then the button 15 is released, and the force is unloaded through the connecting ring 16 to rebound, thereby driving the connecting ring 16 and the sliding column 14 to reset, and the sliding column 14 drives the transmission column 18 and the cone head 19 to slide back to their original position. In the process of sliding of the cone head 19, the card bead 20 is squeezed, so that it is forced to slide out of the outside of the mounting pin 13 and stuck on one side of the fixing seat 11, completing the fixation, thereby achieving the effect of quickly splicing the boom 22 and the support column 2.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spliced ​​cantilever crane, comprising a fixed column (1), characterized in that: The outer wall of the fixed column (1) is slidably connected to the support column (2), the outer wall of the support column (2) is fixedly connected to the motor (3), the output end of the motor (3) is fixedly connected to the rotating column (4), the rotating column (4) is rotatably connected to the inside of the support column (2), the outer wall of the rotating column (4) is fixedly connected to the gear 1 (5), the inside of the support column (2) is fixedly connected to the support plate (6), the inside of the support plate (6) is rotatably connected to the connecting column (7), the top of the connecting column (7) is fixedly connected to the gear 2 (8), the gear 2 (8) is meshed with the rotating column (4), the bottom end of the connecting column (7) is fixedly connected to the threaded column (9), the top of the fixed column (1) is fixedly connected to the fixed block (10), the outer wall of the threaded column (9) is threadedly connected to the fixed block (10) and the inside of the fixed column (1), the outer wall of the support column (2) is provided with a fixing assembly, and the connecting assembly is used to splice the cantilever crane.

2. The spliced ​​cantilever crane according to claim 1, characterized in that: The fixing assembly comprises a fixing seat (11) and a connecting seat (12), wherein the fixing seat (11) is fixedly connected to the outer wall of the support column (2), and the connecting seat (12) is slidably connected to one side of the fixing seat (11), and a mounting pin (13) is slidably connected inside the connecting seat (12) and the fixing seat (11).

3. The spliced ​​cantilever crane according to claim 2, characterized in that: The mounting pin (13) is internally slidably connected to a sliding column (14), and one end of the sliding column (14) is fixedly connected to a button (15).

4. The spliced ​​cantilever crane according to claim 3, characterized in that: A connecting ring (16) is fixedly connected to the outer wall of the sliding column (14), and the connecting ring (16) is slidably connected to the inside of the mounting pin (13).

5. The spliced ​​cantilever crane according to claim 4, characterized in that: A spring (17) is provided at one end of the connecting ring (16), and one end of the spring (17) is fixedly connected to the inside of the mounting pin (13).

6. The spliced ​​cantilever crane according to claim 4, characterized in that: One end of the sliding column (14) is fixedly connected to a transmission column (18), and one end of the transmission column (18) is fixedly connected to a cone head (19).

7. The spliced ​​cantilever crane according to claim 6, characterized in that: A card bead (20) is slidably connected inside the mounting pin (13), the cone head (19) is in contact with the card bead (20), and the card bead (20) is slidably connected to one side of the fixing seat (11).

8. The spliced ​​cantilever crane according to claim 2, characterized in that: A rotating rod (21) is rotatably connected inside the connecting seat (12), an outer wall of the rotating rod (21) is fixedly connected to a hanging arm (22), and an outer wall of the hanging arm (22) is fixedly connected to an electric hoist (23).