Improved electric single-beam crane
By introducing rollers to reduce friction and an automatic cable retraction mechanism into the single-girder crane, the problems of friction wear and cable entanglement have been solved, resulting in more stable and intelligent operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ANGONG LIFTING CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
Smart Images

Figure CN224450056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, specifically to an improved electric single-girder crane. Background Technology
[0002] An improved drive system for electric single-girder cranes is developed by optimizing the electrical, mechanical, and control systems of traditional single-girder cranes to achieve more efficient, safer, and smarter operation.
[0003] First, when traditional cranes are in use, the increased friction causes the track surface to wear down easily, requiring frequent maintenance and increasing maintenance costs.
[0004] Secondly, operators need to manually reel in and out the cable. If the cable is not reeled in and out correctly, it can easily become knotted or tangled, or even hinder the normal operation of the trolley. Summary of the Invention
[0005] (a) Technical problems to be solved
[0006] In view of the shortcomings of the prior art, this utility model provides an improved electric single-girder crane to solve the technical problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: an improved electric single-girder crane, comprising a support, a moving mechanism, and a wire-laying mechanism. The moving mechanism includes a crossbeam and a first roller, the first roller being mounted on the crossbeam and rotatably connected to the crossbeam and slidably connected to the support. A second roller is mounted on the crossbeam, the second roller being rotatably connected to the crossbeam and slidably connected to the support. The wire-laying mechanism includes a motor and a rotating component, the motor being fixedly mounted on the crossbeam, the rotating component being mounted on the crossbeam and rotatably connected to the crossbeam and fixedly connected to the motor. A mounting frame is mounted on the crossbeam, and an electric hoist is mounted on the mounting frame, the mounting frame being slidably connected to the crossbeam.
[0009] Preferably, the electric hoist is equipped with a wire rope and a hook assembly to facilitate the hoisting of other devices.
[0010] In a further preferred embodiment, the bracket is provided with a first limiting groove and a first sliding groove, the crossbeam is slidably connected to the first limiting groove, and the first roller slides in the first sliding groove to facilitate the sliding of the crossbeam.
[0011] In a further preferred embodiment, a first limiting block is provided on the crossbeam, and the first roller and the second roller are respectively installed on the first limiting block. A second sliding groove is provided on the bracket, and the second roller is slidably connected to the second sliding groove to facilitate the stable sliding of the crossbeam.
[0012] In a further preferred embodiment, a driving component is fixedly mounted on the motor, and a driven tooth is provided on the rotating component. The driving component and the driven tooth are connected in a cooperative manner to facilitate the rotation of the rotating component.
[0013] In a further preferred embodiment, the rotating component is provided with a positioning groove and a limiting plate, the driving component slides in the positioning groove, and the limiting plate is provided on both sides of the rotating component to facilitate the winding of the cable.
[0014] In a further preferred embodiment, the crossbeam is provided with a second limiting groove, and the mounting frame is provided with a second limiting block, the second limiting block sliding in the second limiting groove to facilitate the movement of the mounting frame.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides an improved electric single-girder crane, which has the following beneficial effects:
[0017] In this invention, by setting up a moving mechanism, the device reduces the frictional force of direct metal-to-metal contact under the combined action of the first and second rollers. Furthermore, since the rollers can evenly distribute the weight between the crossbeam and the trolley, the crossbeam will be more stable during operation.
[0018] In this invention, by setting up a cable feeding mechanism, under the cooperation of the driving component and the rotating component, the rotating component of this device can automatically feed and retract the cable, which can avoid the cable dragging on the ground or getting tangled, ensure that the cable provides power and signals neatly and smoothly, reduce the risk of cable damage, and eliminate the need for operators to manually feed and retract the cable, thus improving the level of automation and intelligence of the operation. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of an improved electric single-girder crane according to the present invention;
[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;
[0021] Figure 3 This is a schematic diagram of the moving mechanism in this utility model;
[0022] Figure 4 This is an exploded view of the wire feeding mechanism in this utility model.
[0023] In the diagram: 1. Bracket; 2. Crossbeam; 3. First roller; 4. Second roller; 5. Motor; 6. Rotating component; 7. Mounting bracket; 8. Electric hoist; 9. Wire rope; 10. Hook assembly; 11. First limiting groove; 12. First sliding groove; 13. First limiting block; 14. Second sliding groove; 15. Driving component; 16. Driven gear; 17. Positioning groove; 18. Limiting plate; 19. Second limiting groove; 20. Second limiting block. Detailed Implementation
[0024] 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.
[0025] Example 1:
[0026] Please see Figures 1-4 An improved electric single-girder crane includes a support 1, a moving mechanism, and a wire-laying mechanism. The moving mechanism includes a crossbeam 2 and a first roller 3. The first roller 3 is mounted on the crossbeam 2 and is rotatably connected to the crossbeam 2 and slidably connected to the support 1. A second roller 4 is mounted on the crossbeam 2 and is rotatably connected to the crossbeam 2 and slidably connected to the support 1. The wire-laying mechanism includes a motor 5 and a rotating component 6. The motor 5 is fixedly mounted on the crossbeam 2, and the rotating component 6 is mounted on the crossbeam 2 and is rotatably connected to the crossbeam 2 and fixedly connected to the motor 5. A mounting frame 7 is mounted on the crossbeam 2, and an electric hoist 8 is mounted on the mounting frame 7. The mounting frame 7 is slidably connected to the crossbeam 2.
[0027] In this embodiment, the moving mechanism includes a crossbeam 2 and a first roller 3. During use, the crossbeam 2 needs to be adjusted in position. The crossbeam 2 starts to move on the support 1. At this time, the first limiting block 13 on the crossbeam 2 slides directly in the first limiting groove 11 of the support 1, while the first roller 3 and the second roller 4 slide in the first sliding groove 12 and the second sliding groove 14 respectively. The crossbeam 2 with the roller sliding reduces the friction between the crossbeam 2 and the support 1, and also limits the crossbeam 2 at the same time.
[0028] In this embodiment, the wire feeding mechanism includes a motor 5 and a rotating component 6. During use, the mounting bracket 7 on the crossbeam 2 begins to move on the crossbeam 2. At this time, the second limiting block 20 slides in the second limiting groove 19, and the electric hoist on the mounting bracket 7 directly pulls the cable to move when it moves. The cable is wound on the rotating component 6. At this time, the motor 5 drives the driving component 15 to rotate. The driven tooth 16 on the rotating component 6 meshes with the driving component 15, and the driving component 15 also slides in the positioning groove 17 at the same time. At this time, the cable is pulled and unwound. When the cable is retracted, that is, when the mounting bracket 7 is reset on the crossbeam 2, the motor 5 rotates in the opposite direction. When the mounting bracket 7 is in the correct position, the electric hoist 8 starts to drive and directly places the wire rope 9 and the hook assembly 10 onto the item to be hoisted, thus completing the hoisting of the item.
[0029] Example 2:
[0030] In summary, during use, the first movement is of the crossbeam 2. When the crossbeam 2 needs to be adjusted, it begins to move on the bracket 1. At this time, the first limiting block 13 on the crossbeam 2 slides directly in the first limiting groove 11 of the bracket 1, while the first roller 3 and the second roller 4 slide in the first sliding groove 12 and the second sliding groove 14 respectively. The sliding of the rollers reduces the friction between the crossbeam 2 and the bracket 1, and also limits the movement of the crossbeam 2. Once the position of the crossbeam 2 is determined, the mounting bracket 7 on the crossbeam 2 begins to move on the crossbeam 2. At this time, the second limiting block 20 slides in the second limiting groove 19, and... Furthermore, when the electric hoist on the mounting frame 7 moves, it directly pulls the cable to move, and the cable is wrapped around the rotating part 6. At this time, the motor 5 drives the drive part 15 to rotate, and the driven tooth 16 on the rotating part 6 meshes with the drive part 15. The drive part 15 also slides in the positioning groove 17 at the same time. At this time, the cable is pulled and unwound. When the cable is retracted, that is, when the mounting frame 7 is reset on the crossbeam 2, the motor 5 rotates in the opposite direction. When the mounting frame 7 is in the correct position, the electric hoist 8 starts to drive, directly placing the wire rope 9 and the hook assembly 10 onto the item to be hoisted, completing the hoisting of the item.
[0031] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. An improved electric single-beam crane comprising a support (1), a movement mechanism and a pay-off mechanism, characterized in that, The moving mechanism includes a crossbeam (2) and a first roller (3). The first roller (3) is mounted on the crossbeam (2) and is rotatably connected to the crossbeam (2) and slidably connected to the bracket (1). A second roller (4) is mounted on the crossbeam (2). The second roller (4) is rotatably connected to the crossbeam (2) and slidably connected to the bracket (1). The wire feeding mechanism includes a motor (5) and a rotating component (6). The motor (5) is fixedly mounted on the crossbeam (2). The rotating component (6) is mounted on the crossbeam (2) and is rotatably connected to the crossbeam (2) and fixedly connected to the motor (5). A mounting frame (7) is mounted on the crossbeam (2). An electric hoist (8) is mounted on the mounting frame (7). The mounting frame (7) is slidably connected to the crossbeam (2).
2. An improved electric single beam crane as claimed in claim 1, wherein: The electric hoist (8) is equipped with a wire rope (9) and a hook assembly (10).
3. An improved electric single beam crane as claimed in claim 2, wherein: The bracket (1) is provided with a first limiting groove (11) and a first sliding groove (12). The crossbeam (2) is slidably connected to the first limiting groove (11), and the first roller (3) slides in the first sliding groove (12).
4. The improved electric single beam crane as claimed in claim 1 wherein: A first limiting block (13) is provided on the crossbeam (2), and the first roller (3) and the second roller (4) are respectively installed on the first limiting block (13). A second sliding groove (14) is provided on the bracket (1), and the second roller (4) is slidably connected to the second sliding groove (14).
5. An improved electric single beam crane as claimed in claim 4, wherein: A drive component (15) is fixedly installed on the motor (5), and a driven tooth (16) is provided on the rotating component (6). The drive component (15) and the driven tooth (16) are connected in cooperation.
6. An improved electric single beam crane as claimed in claim 5, wherein: The rotating component (6) is provided with a positioning groove (17) and a limiting plate (18). The driving component (15) slides in the positioning groove (17), and the limiting plate (18) is provided on both sides of the rotating component (6).
7. An improved electric single beam crane as claimed in claim 1 wherein: The crossbeam (2) is provided with a second limiting groove (19), and the mounting bracket (7) is provided with a second limiting block (20). The second limiting block (20) slides in the second limiting groove (19).