A large generator rotor hoisting guide device

Abstract

The utility model relates to large -scale generator rotor hoisting technical field discloses a large -scale generator rotor hoisting guide device, including guide rail, the guide rail below is provided with clamping component, the clamping component includes clamping one, clamping one sets up below the guide rail, the outer wall of clamping one is provided with clamping two, there are two pivot one between clamping one and clamping two, pivot one is rotationally connected in one inside clamping one and clamping two, one end of pivot one is fixedly connected with moving plate. In the utility model, through hydraulic cylinder drive moving plate, drive clamping one and clamping two around pivot one rotation and realize clamping action to adapt to different diameter and size generator rotor, reduce use cost and equipment preparation time, through the sliding of sliding block in guide rail inner wall, the outer wall of clamping block is set in the clamping groove of clamping plate and is width matching, and fixed block and its below clamping component can move stably and accurately along the guide rail.

Description

Technical Field

[0001] This utility model relates to the field of large generator rotor hoisting technology, and in particular to a large generator rotor hoisting guide device. Background Technology

[0002] In the installation, maintenance, and overhaul of large generator equipment, the hoisting of large generator rotors is a crucial step. Generator rotors are typically large, heavy, and structurally precise. The hoisting process not only requires ensuring the rotor is moved safely and smoothly to the designated position but also preventing damage or deformation during hoisting to avoid affecting the generator's normal operation and performance. Large generator rotor hoisting guide devices are designed to meet this need, providing precise guidance and stable clamping during the hoisting process, ensuring the smooth progress of the hoisting operation.

[0003] Currently common hoisting devices employ a mechanical gripper structure, using a robotic arm to grasp and move the rotor for lifting. For guidance, a simple sliding rail structure is used, relying on the rotor's own weight or external tension to slide along the rail, thus achieving a certain degree of guidance. However, when gripping generator rotors of different sizes, different gripping structures need to be changed, a time-consuming process that impacts production efficiency. During hoisting, the rotor is prone to slippage due to swaying or uneven force, which can not only cause serious damage to the rotor itself but also pose a significant threat to on-site operators and surrounding equipment, severely affecting the safety and reliability of the hoisting operation. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a large generator rotor hoisting guide device, which aims to improve the shortcomings of traditional devices in grasping rotors of different sizes and the problem of easy shaking during hoisting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a large generator rotor hoisting guide device, comprising a guide rail, characterized in that: a clamping assembly is provided below the guide rail; the clamping assembly includes a clamp 1, a clamp 2 is provided on the outer wall of the clamp 1, two rotating shafts 1 are between the clamp 1 and the clamp 2, a rotating shaft 1 is rotatably connected inside the clamp 1 and the clamp 2, a moving plate is fixedly connected to one end of the rotating shaft 1, a rod 1 is provided inside the clamp 1, two rotating shafts 2 are between the clamp 1 and the rod 1, a rotating shaft 2 is rotatably connected inside the clamp 1 and the rod 1, a rod 2 is rotatably connected inside the clamp 2 via another rotating shaft 2, another rotating shaft 1 is rotatably connected inside the rod 1 and the clamp 1, the clamp 2 and the rod 2 are rotatably connected to the outer wall of the rotating shaft 1, a connecting block is rotatably connected inside the rod 1 and the rod 2 via the rotating shaft 1, a fixing block is fixedly connected to the outer wall of the connecting block, a hydraulic cylinder is fixedly connected to the lower surface of the fixing block, the output end of the hydraulic cylinder is fixedly connected to the upper surface of the moving plate, and a guide assembly is provided on the upper surface of the fixing block.

[0006] Furthermore, the guide assembly includes a snap-fit ​​block, the lower surface of which is fixedly connected to the upper surface of a fixed block, a slider is slidably connected to the inner wall of the guide rail, a snap-fit ​​plate is fixedly connected to the lower surface of the slider, a snap-fit ​​groove is formed inside the snap-fit ​​plate, and the outer wall of the snap-fit ​​block is disposed inside the snap-fit ​​groove.

[0007] Furthermore, a rod three is rotatably connected inside the fixed block, a rod four is rotatably connected inside the movable plate, and a connecting shaft is rotatably connected between rod three and rod four.

[0008] Furthermore, two guide rails are provided, and the two guide rails are fixedly connected to a load-bearing frame in a parallel state. A buffer pad is fixedly connected to the lower surface of the guide rail, and the outer wall of the buffer pad is fixedly connected to the inner wall of the load-bearing frame.

[0009] Furthermore, two sets of clamps are provided, and the two sets of clamps are symmetrically arranged on both sides of the outer wall of the fixing block. Anti-slip pads are fixedly connected to the inner walls of clamps.

[0010] Furthermore, there are two sets of rods three and four, which are symmetrically arranged on the outer wall of the connecting shaft.

[0011] Furthermore, two snap-fit ​​plates are provided, and the upper surfaces of the two snap-fit ​​plates are fixedly connected to the lower surface of the slider.

[0012] Furthermore, the width of the latching block is consistent with that of the latching slot.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the moving plate is driven by a hydraulic cylinder, which drives the first clamp and the second clamp to rotate around the first rotating shaft to achieve the clamping action. The first clamp and the second clamp are arranged in two sets and are symmetrically distributed on both sides of the fixed block. By adjusting the stroke of the hydraulic cylinder, the opening and closing degree of the clamping arms can be changed, thereby adapting to generator rotors of different diameters and sizes. There is no need to design and replace the clamping device for different specifications of rotors, which reduces the cost of use and the equipment preparation time.

[0015] 2. In this utility model, the slider slides on the inner wall of the guide rail, and the outer wall of the snap-fit ​​block is set in the snap-fit ​​plate with a matching width. The fixing block and the clamping components below it can move stably and accurately along the guide rail. During the hoisting process, it can move smoothly according to the predetermined trajectory, reducing the problem of rotor collision or inaccurate installation position caused by guide deviation, and improving hoisting accuracy and installation quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a large generator rotor hoisting and guiding device proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the load-bearing frame structure of a large generator rotor hoisting and guiding device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping structure of a large generator rotor hoisting and guiding device proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the guide rail structure of a large generator rotor hoisting and guiding device proposed in this utility model.

[0021] Legend:

[0022] 1. Load-bearing frame; 2. Guide rail; 3. Buffer pad; 4. Connecting block; 5. Rotating shaft one; 6. Rod one; 7. Fixing block; 8. Hydraulic cylinder; 9. Clamp one; 10. Clamp two; 11. Anti-slip pad; 12. Rod three; 13. Rod four; 14. Connecting shaft; 15. Rod two; 16. Clip block; 17. Clip plate; 18. Slider; 19. Moving plate; 20. Slot; 21. Rotating shaft two. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1-5 This utility model provides an embodiment of a large generator rotor hoisting guide device, including a guide rail 2, with a clamping assembly disposed below the guide rail 2; the clamping assembly includes a clamp 9, which is disposed below the guide rail 2 and serves as a component that directly contacts and clamps the generator rotor. Its stable structure can initially provide clamping support for the rotor. There are two rotating shafts 5 between the clamp 9 and the clamp 10. Each of the clamps 9 and the clamp 10 is rotatably connected to a rotating shaft 5. The clamp 10 cooperates with the clamp 9 to form a clamping space, jointly completing the clamping action of the rotor. Both clamp 9 and clamp 10 are rotatably connected to a pivot 5. Pivot 5 is a key component for the movement of clamps 9 and 10, and its rotation enables the opening and closing of the clamp arms. A movable plate 19 is fixedly connected to one end of pivot 5, which acts as a force transmission component; when subjected to external force, it drives pivot 5 to rotate. There are two pivots 21 between clamp 9 and rod 6. Both clamp 9 and rod 6 are rotatably connected to a pivot 21. Clamp 10 is rotatably connected to rod 15 via another pivot 21. Rod 16 and rod 15... 5 serves to connect and transmit power, making the movements of clamp 9 and clamp 10 more coordinated. Both rod 6 and clamp 9 are rotatably connected to another rotating shaft 5. Clamp 10 and rod 15 are rotatably connected to the outer wall of rotating shaft 5. These rotating shafts 5 ensure the relative movement between the connecting rod and the clamp arm. Rod 6 and rod 15 are rotatably connected to a connecting block 4 via rotating shaft 5. Connecting block 4 integrates the movements of rod 6 and rod 15, synchronizing their movements. A fixing block 7 is fixedly connected to the outer wall of connecting block 4. The fixing block 7 provides a stable support base for the entire clamping assembly and connects other components. A hydraulic cylinder 8 is fixedly connected to the lower surface of the fixing block 7. The hydraulic cylinder 8 serves as a power source to provide power to the clamping assembly. The opening and closing of the clamping arms is controlled by the extension and retraction of its output end. The output end of the hydraulic cylinder 8 is fixedly connected to the upper surface of the moving plate 19. When the hydraulic cylinder 8 works, the output end drives the moving plate 19 to move, thereby driving the clamp 1 9 and clamp 2 10 to move. A guide assembly is provided on the upper surface of the fixing block 7. The guide assembly ensures that the clamping assembly and the rotor move stably along the guide rail 2.

[0025] Reference Figures 1-5The guide assembly includes a snap-fit ​​block 16, the lower surface of which is fixedly connected to the upper surface of the fixed block 7. The snap-fit ​​block 16 serves as the connecting component between the guide assembly and the fixed block 7, and plays a role in transmitting guiding force. A slider 18 is slidably connected to the inner wall of the guide rail 2. The slider 18 slides on the inner wall of the guide rail 2, providing support and a guiding foundation for the movement of the entire device. A snap-fit ​​plate 17 is fixedly connected to the lower surface of the slider 18. The snap-fit ​​plate 17 is used to cooperate with the snap-fit ​​block 16 to realize the guiding function. A snap-fit ​​groove 20 is opened inside the snap-fit ​​plate 17, which provides installation space for the snap-fit ​​block 16 and ensures that the two fit tightly. The outer wall of the snap-fit ​​block 16 is set inside the snap-fit ​​groove 20. This cooperation method allows the snap-fit ​​block 16 to move on the guide rail 2 with the slider 18, thereby driving the clamping assembly and the rotor to move stably along the guide rail 2.

[0026] Reference Figures 1-5 The fixed block 7 is internally connected to a rotatable rod 12, which enhances the stability of the connection between the fixed block 7 and the moving plate 19, making their movements more coordinated. The moving plate 19 is internally connected to a rotatable rod 13, which works in conjunction with rod 12 to further ensure the overall stability of the device. A connecting shaft 14 rotatably connects rod 12 and rod 13, serving as a rotating component for both rods and enabling relative rotation, thus realizing the linkage mechanism's motion function. Two guide rails 2 are provided, and a load-bearing frame 1 is fixedly connected to them in a parallel state. The load-bearing frame 1 provides stable support for the guide rails 2, ensuring their parallelism and stability. A buffer pad 3 is fixedly connected to the lower surface of the guide rails 2. The buffer pad 3 acts as a buffer when the device moves to the end of the guide rail 2, reducing the impact force between the device and the end of the guide rail 2, protecting the device and guide rail 2 from damage. The outer wall of the buffer pad 3 is fixedly connected to the inner wall of the load-bearing frame 1. This connection method ensures the buffer pad 3's stability. For stability, two sets of clamps 9 and 10 are provided, symmetrically arranged on both sides of the outer wall of the fixing block 7. This symmetrical arrangement ensures a uniform distribution of clamping force and improves clamping stability. Anti-slip pads 11 are fixedly connected to the inner walls of both clamps 9 and 10. These pads increase the friction between the clamping arms and the rotor, preventing the rotor from sliding during clamping and ensuring clamping reliability. Two sets of rods 12 and 13 are also provided, symmetrically arranged. The symmetrical arrangement on the outer wall of the connecting shaft 14 ensures the motion balance of the linkage mechanism and enhances the overall stability of the device. There are two locking plates 17, and the upper surfaces of the two locking plates 17 are fixedly connected to the lower surface of the slider 18. The two locking plates 17 can cooperate more stably with the locking block 16, improving the stability of the guide. The width of the locking block 16 is consistent with the slot 20. This size matching can ensure that the locking block 16 moves stably in the slot 20, avoiding shaking or jamming, and ensuring the accuracy of the guide.

[0027] Working principle: When a large generator rotor needs to be hoisted, hydraulic cylinder 8 operates, and its output end pushes the moving plate 19 to move. The moving plate 19 is connected to clamp 9 and clamp 10 via rotating shaft 5. The movement of the moving plate 19 will drive rotating shaft 5 to rotate, thereby causing clamp 9 and clamp 10 to rotate around rotating shaft 5. At the same time, rod 6 and rod 15 are connected to clamp 9, clamp 10 and connecting block 4 via rotating shaft 5, forming a linkage mechanism that can ensure the synchronicity and stability of the movement of clamp 9 and clamp 10. Through the rotation of clamp 9 and clamp 10, the clamping and releasing operation of the generator rotor is realized. Anti-slip pad 11 can increase the... The added friction of the clamping prevents the rotor from slipping. The snap-fit ​​block 16 is fixed on the fixed block 7, and the slider 18 slides in the guide rail 2. The fixed block 7 and the clamping assembly can move stably along the guide rail 2 through the slider 18, thereby achieving a stable guiding effect on the rotor during hoisting. The buffer pad 3 can play a buffering role when the device moves to the end of the guide rail 2 to reduce the impact force. The rod 12 connected to the fixed block 7 and the rod 13 connected to the moving plate 19 can further enhance the connection stability between the fixed block 7 and the moving plate 19 through the connecting shaft 14, ensuring the overall structural stability of the device and the coordinated action during clamping and movement.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A large generator rotor hoisting guide device, comprising a guide rail (2), characterized in that: A clamping assembly is provided below the guide rail (2); The clamping assembly includes a clamp (9), a clamp (10) on the outer wall of the clamp (9), two pivots (5) between the clamp (9) and the clamp (10), and a pivot (5) rotatably connected inside the clamp (9) and the clamp (10). A movable plate (19) is fixedly connected to one end of the pivot (5). A rod (6) is provided inside the clamp (9). Two pivots (21) between the clamp (9) and the rod (6) are rotatably connected inside the clamp (9) and the rod (6). Another pivot (21) is connected inside the clamp (10). (21) A second rod (15) is rotatably connected. Another shaft (5) is rotatably connected inside the first rod (6) and the first clamp (9). The second clamp (10) and the second rod (15) are rotatably connected to the outer wall of the shaft (5). A connecting block (4) is rotatably connected inside the first rod (6) and the second rod (15) through the shaft (5). A fixing block (7) is fixedly connected to the outer wall of the connecting block (4). A hydraulic cylinder (8) is fixedly connected to the lower surface of the fixing block (7). The output end of the hydraulic cylinder (8) is fixedly connected to the upper surface of the moving plate (19). A guide component is provided on the upper surface of the fixing block (7).

2. The large generator rotor hoisting guide device according to claim 1, characterized in that: The clamp (9) is located below the guide rail (2). The guide assembly includes a snap-fit ​​block (16). The lower surface of the snap-fit ​​block (16) is fixedly connected to the upper surface of the fixing block (7). A slider (18) is slidably connected to the inner wall of the guide rail (2). A snap-fit ​​plate (17) is fixedly connected to the lower surface of the slider (18). A slot (20) is provided inside the snap-fit ​​plate (17). The outer wall of the snap-fit ​​block (16) is located inside the slot (20).

3. The large generator rotor hoisting guide device according to claim 1, characterized in that: The fixed block (7) is rotatably connected to rod three (12), the movable plate (19) is rotatably connected to rod four (13), and a connecting shaft (14) is rotatably connected between rod three (12) and rod four (13).

4. The large generator rotor hoisting guide device according to claim 2, characterized in that: There are two guide rails (2), and the two guide rails (2) are fixedly connected to the load-bearing frame (1) in a parallel state. A buffer pad (3) is fixedly connected to the lower surface of the guide rail (2), and the outer wall of the buffer pad (3) is fixedly connected to the inner wall of the load-bearing frame (1).

5. A large generator rotor hoisting and guiding device according to claim 1, characterized in that: The first clamp (9) and the second clamp (10) are provided in two sets. The two sets of the first clamp (9) and the second clamp (10) are symmetrically arranged on both sides of the outer wall of the fixed block (7). The inner walls of the first clamp (9) and the second clamp (10) are fixedly connected with anti-slip pads (11).

6. A large generator rotor hoisting guide device according to claim 3, characterized in that: There are two sets of rods three (12) and four (13), and the two sets of rods three (12) and four (13) are symmetrically arranged on the outer wall of the connecting shaft (14).

7. A large generator rotor hoisting and guiding device according to claim 2, characterized in that: Two snap-fit ​​plates (17) are provided, and the upper surfaces of the two snap-fit ​​plates (17) are fixedly connected to the lower surface of the slider (18).

8. A large generator rotor hoisting and guiding device according to claim 2, characterized in that: The width of the snap-fit ​​block (16) is the same as that of the slot (20).

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