A hoisting device for testing special equipment

Abstract

This utility model discloses a hoisting device for special equipment inspection, belonging to the technical field of hoisting devices. It includes a fixed base, with multiple legs fixedly connected to the lower side of the fixed base. A base plate is fixedly connected to the lower end of each leg, and two casters are fixedly connected to the lower side of the base plate. Multiple support plates are fixedly connected to the upper side of the fixed base. Two first motors are fixedly connected to the lower side of the fixed base, with threaded rods fixedly connected to the output ends of the first motors. A lifting plate is threadedly connected to the outer wall of the threaded rods. Two fixed plates are fixedly connected to the upper side of the fixed base. This utility model, through the cooperation of a second motor, worm gear, fixed plates, hook, worm wheel, unwinding roller, steel rope, rotating shaft, and limiting plate, can simultaneously hoist multiple hoisting points of the equipment. Synchronous hoisting ensures uniform force distribution at each hoisting point, avoiding localized overload or stress concentration, and reducing the risk of equipment deformation, cracking, or breakage.

Description

Technical Field

[0001] This utility model relates to the field of hoisting device technology, specifically to a hoisting device for testing special equipment. Background Technology

[0002] For special equipment such as boilers and pressure vessels, hoisting equipment is required when installing them in the designated location. The hoisting equipment can accurately lift the reactor onto the foundation platform, and then carry out meticulous installation and commissioning work, including connecting pipelines and electrical equipment.

[0003] The existing technology has the following problems:

[0004] The existing equipment cannot simultaneously hoist multiple lifting points during use. Asynchronous hoisting may lead to uneven stress on the equipment, causing local overload or stress concentration, which may result in deformation, cracks or even breakage. For precision or complex equipment, asynchronous hoisting may damage its internal structure or precision, affecting normal use and performance. In addition, the existing equipment cannot limit and fix the bottom when it stops. If there is no limit and fixation after the hoisting device stops, the equipment may shake or shift due to external factors, causing the equipment to deviate from its original position and potentially collide and be damaged. Utility Model Content

[0005] This utility model provides a hoisting device for special equipment inspection to solve the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A hoisting device for special equipment inspection includes a fixed base, a plurality of outriggers fixedly connected to the lower side of the fixed base, a base plate fixedly connected to the lower end of the outriggers, two casters fixedly connected to the lower side of the base plate, a plurality of support plates fixedly connected to the upper side of the fixed base, and two first motors fixedly connected to the lower side of the fixed base. A threaded rod is fixedly connected to the output end of the first motor, and a lifting plate is threadedly connected to the outer wall of the threaded rod.

[0008] A further improvement of this utility model is that: two fixing plates are fixedly connected to the upper side of the fixing base, a second motor is fixedly connected to the rear side of the fixing plate at the rear end, a worm is fixedly connected to the output end of the second motor, two worm wheels are meshed with the outer wall of the worm, and a rotating shaft is fixedly connected through the left side of the worm wheel.

[0009] A further improvement of this utility model is that: two unwinding rollers are fixedly connected to the outer wall of the rotating shaft, a steel rope is fixedly connected to the inner surface of the unwinding rollers, a hook is fixedly connected to the other end of the steel rope, a limiting plate is fixedly connected to both the left and right ends of the rotating shaft, a limiting groove is opened inside the support plate, and the outer wall of the limiting plate is rotatably connected to the limiting groove.

[0010] A further improvement of this utility model is that: two guide columns are fixedly connected to the lower side of the lifting plate, the outer wall of the guide columns is slidably connected to the bottom plate, and a limit plate is fixedly connected to the lower end of the guide columns.

[0011] A further improvement of this utility model is that: a U-shaped connecting rod is slidably connected through the lower side of the limiting plate, a movable block is fixedly connected to the upper end of the U-shaped connecting rod, a spring is sleeved on the outer wall of the U-shaped connecting rod, a rotating telescopic plate is rotatably connected to both the left and right sides of the movable block, and a rotating plate is rotatably connected to the other end of the rotating telescopic plate.

[0012] A further improvement of this utility model is that: the lower end of the spring is fixedly connected to the limiting plate, the upper end of the spring is fixedly connected to the movable block, and both the left and right sides of the limiting plate are rotatably connected to the rotating plate.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a hoisting device for special equipment inspection. Through the cooperation of a second motor, worm gear, fixed plate, hook, worm wheel, unwinding roller, steel rope, rotating shaft and limit plate, it can hoist multiple hoisting points of the equipment simultaneously. Synchronous hoisting can ensure that the force on each hoisting point of the equipment is uniform, avoid local overload or stress concentration, and reduce the risk of equipment deformation, cracking or breakage.

[0015] 2. This utility model provides a hoisting device for special equipment inspection. Through the cooperation of the lifting plate, guide column, limiting plate, rotating plate, U-shaped connecting rod, movable block, rotating telescopic plate and spring, the bottom can be limited and fixed when stopped. The limiting and fixing can effectively prevent the equipment from shaking or shifting due to external factors, ensure that the equipment remains stationary and stable during the inspection process, and avoid the equipment shaking and collision. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the limiting structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the important structure of this utility model;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Fixed base; 2. Support plate; 3. Support leg; 4. Base plate; 5. First motor; 6. Threaded rod; 8. Caster wheel; 9. Second motor; 10. Worm gear; 11. Fixed plate; 12. Hook; 13. Worm gear; 14. Unwinding roller; 15. Steel rope; 16. Rotating shaft; 17. Limiting plate; 18. Limiting groove; 19. Lifting plate; 20. Guide column; 21. Limiting plate; 22. Rotating plate; 23. U-shaped connecting rod; 24. Movable block; 25. Rotating telescopic plate; 26. Spring. Detailed Implementation

[0022] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0023] like Figure 1 As shown, this utility model provides a hoisting device for special equipment inspection, including a fixed base 1. Multiple support legs 3 are fixedly connected to the lower side of the fixed base 1. A base plate 4 is fixedly connected to the lower end of each support leg 3. Two casters 8 are fixedly connected to the lower side of the base plate 4. Multiple support plates 2 are fixedly connected to the upper side of the fixed base 1. Two first motors 5 are fixedly connected to the lower side of the fixed base 1. A threaded rod 6 is fixedly connected to the output end of each first motor 5. A lifting plate 19 is threadedly connected to the outer wall of the threaded rod 6. When the first motor 5 on the lower side of the fixed base 1 is started, the output end of the first motor 5 drives the threaded rod 6 to rotate. Since the threaded rod 6 is threadedly connected to the lifting plate 19, according to the thread transmission principle, the rotation of the threaded rod 6 is converted into the up-and-down movement of the lifting plate 19 along the threaded rod 6, thereby achieving the limiting of the entire hoisting device. At the same time, the guide column 20 on the lower side of the lifting plate 19 slides on the base plate 4, playing a guiding and stabilizing role, ensuring a smooth lifting process.

[0024] like Figure 2-3As shown, this utility model provides a technical solution: Preferably, two fixing plates 11 are fixedly connected to the upper side of the fixing base 1, and a second motor 9 is fixedly connected to the rear side of the rear fixing plate 11. A worm gear 10 is fixedly connected to the output end of the second motor 9. Two worm wheels 13 are meshed with the outer wall of the worm gear 10. A rotating shaft 16 is fixedly connected through the left side of the worm wheel 13. Two unwinding rollers 14 are fixedly connected to the outer wall of the rotating shaft 16. A steel rope 15 is fixedly connected to the inner surface of the unwinding roller 14. A hook 12 is fixedly connected to the other end of the steel rope 15. Limiting discs 17 are fixedly connected to both the left and right ends of the rotating shaft 16. A limiting groove 18 is opened inside the support plate 2. The outer wall of the limiting disc 17 is rotatably connected to the limiting groove 18. When the second motor 9 on the rear side of the rear fixing plate 11 is started, its output end drives the worm gear 10. When rod 10 rotates, worm gear 10 meshes with two worm wheels 13. The rotation of worm gear 10 is transmitted to worm wheels 13, causing worm wheels 13 to rotate. The rotating shaft 16 on the left side of worm wheel 13 rotates synchronously with worm wheel 13, thereby driving the unwinding roller 14 fixed on the rotating shaft 16 to rotate. When the unwinding roller 14 rotates, the steel rope 15 wound on its surface is wound up and unwound. The hook 12 at the other end of the steel rope 15 can hook onto the lifting point of the equipment. The two unwinding rollers 14 achieve synchronous winding and unwinding of steel rope 15 at multiple lifting points of the equipment through the synchronous rotation of rotating shaft 16 and worm wheels 13, thereby ensuring that the force on each lifting point of the equipment is uniform and avoiding local overload or stress concentration. In addition, the limiting discs 17 at both ends of rotating shaft 16 rotate in the limiting grooves 18 of support plate 2, which play a limiting and supporting role for rotating shaft 16 and ensure stability during rotation.

[0025] like Figure 4-5As shown, this utility model provides a technical solution: Preferably, two guide columns 20 are fixedly connected to the lower side of the lifting plate 19. The outer wall of the guide column 20 is slidably connected to the base plate 4. A limit plate 21 is fixedly connected to the lower end of the guide column 20. A U-shaped connecting rod 23 is slidably connected through the lower side of the limit plate 21. A movable block 24 is fixedly connected to the upper end of the U-shaped connecting rod 23. A spring 26 is sleeved on the outer wall of the U-shaped connecting rod 23. Rotary telescopic plates 25 are rotatably connected to both sides of the movable block 24. A rotating plate 22 is rotatably connected to the other end of the rotary telescopic plate 25. The lower end of the spring 26 is fixedly connected to the limit plate 21, and the upper end of the spring 26 is fixedly connected to the movable block 24. The left and right sides of the limit plate 21 are rotatably connected to the rotating plate 22. When the lifting device stops moving... After the equipment is moved and lowered, as the lifting plate 19 descends, the limiting plate 21 at the lower end of the guide column 20 contacts the ground. As it continues to descend, the ground exerts an upward reaction force on the limiting plate 21, causing the U-shaped connecting rod 23 to slide upward within the limiting plate 21. This causes the movable block 24 to move upward, stretching the spring 26. During the upward movement of the movable block 24, the rotating plate 22 is rotated by rotating the telescopic plate 25. The rotating plate 22 opens outward, increasing the contact area and friction with the ground, thereby limiting and fixing the bottom of the hoisting device. This effectively prevents the equipment from shaking or shifting due to external factors. The spring 26 plays a role in buffering and providing restoring force during this process. When the equipment is removed and the hoisting device rises, the spring 26 pulls the movable block 24 downward, causing the rotating plate 22 to return to its initial state.

[0026] The working principle of this special equipment inspection hoisting device will be explained in detail below.

[0027] like Figure 1-5As shown, the second motor 9 on the rear side of the fixed plate 11 starts, and its output end drives the worm gear 10 to rotate. The worm gear 10 meshes with two worm wheels 13. The rotation of the worm gear 10 is transmitted to the worm wheels 13, causing the worm wheels 13 to rotate. The rotating shaft 16 on the left side of the worm wheel 13 rotates synchronously with the worm wheel 13, thereby driving the unwinding roller 14 fixed on the rotating shaft 16 to rotate. When the unwinding roller 14 rotates, the steel rope 15 wound on its surface is wound up and unwound. The hook 12 at the other end of the steel rope 15 can hook the lifting point of the equipment. The two unwinding rollers 14 achieve synchronous winding and unwinding of the steel rope 15 at multiple lifting points of the equipment through the synchronous rotation of the rotating shaft 16 and the worm wheels 13, thereby ensuring that the force on each lifting point of the equipment is uniform and avoiding local overload or stress concentration. In addition, the limiting discs 17 at both ends of the rotating shaft 16 rotate in the limiting grooves 18 of the support plate 2, which limits the rotating shaft 16. The lifting device provides support and ensures stability during rotation. When the lifting device stops moving and the equipment is lowered, as the lifting plate 19 descends, the limiting plate 21 at the lower end of the guide column 20 contacts the ground. As it continues to descend, the ground exerts an upward reaction force on the limiting plate 21, causing the U-shaped connecting rod 23 to slide upward within the limiting plate 21, which in turn moves the movable block 24 upward and stretches the spring 26. During the upward movement of the movable block 24, the rotating plate 22 is rotated by rotating the telescopic plate 25. The rotating plate 22 opens outward, increasing the contact area and friction with the ground, thereby limiting and fixing the bottom of the lifting device and effectively preventing the equipment from shaking or shifting due to external factors. The spring 26 plays a role in buffering and providing restoring force during this process. When the equipment is removed and the lifting device rises, the spring 26 pulls the movable block 24 downward, allowing the rotating plate 22 to return to its initial state.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A hoisting device for special equipment detection, characterized in that: Includes a fixed base (1), with multiple support legs (3) fixedly connected to the lower side of the fixed base (1), a base plate (4) fixedly connected to the lower end of the support legs (3), two universal wheels (8) fixedly connected to the lower side of the base plate (4), multiple support plates (2) fixedly connected to the upper side of the fixed base (1), and two first motors (5) fixedly connected to the lower side of the fixed base (1). A threaded rod (6) is fixedly connected to the output end of the first motor (5), and a lifting plate (19) is threadedly connected to the outer wall of the threaded rod (6).

2. The hoisting device for special equipment detection according to claim 1, characterized in that: Two fixing plates (11) are fixedly connected to the upper side of the fixing base (1), and a second motor (9) is fixedly connected to the rear side of the fixing plate (11). A worm (10) is fixedly connected to the output end of the second motor (9). Two worm wheels (13) are meshed with the outer wall of the worm (10), and a rotating shaft (16) is fixedly connected through the left side of the worm wheel (13).

3. The hoisting device for special equipment detection according to claim 2, characterized in that: Two unwinding rollers (14) are fixedly connected to the outer wall of the rotating shaft (16). A steel rope (15) is fixedly connected to the inner surface of the unwinding roller (14). A hook (12) is fixedly connected to the other end of the steel rope (15). Limiting discs (17) are fixedly connected to both the left and right ends of the rotating shaft (16). A limiting groove (18) is opened inside the support plate (2). The outer wall of the limiting disc (17) is rotatably connected to the limiting groove (18).

4. The hoisting device for special equipment detection according to claim 1, characterized in that: Two guide posts (20) are fixedly connected to the lower side of the lifting plate (19). The outer wall of the guide post (20) is slidably connected to the bottom plate (4). A limit plate (21) is fixedly connected to the lower end of the guide post (20).

5. The hoisting device for special equipment detection according to claim 4, characterized in that: A U-shaped connecting rod (23) is slidably connected to the lower side of the limiting plate (21). A movable block (24) is fixedly connected to the upper end of the U-shaped connecting rod (23). A spring (26) is sleeved on the outer wall of the U-shaped connecting rod (23). Rotary telescopic plates (25) are rotatably connected to both the left and right sides of the movable block (24). A rotating plate (22) is rotatably connected to the other end of the rotating telescopic plate (25).

6. The hoisting device for special equipment detection according to claim 5, characterized in that: The lower end of the spring (26) is fixedly connected to the limiting plate (21), the upper end of the spring (26) is fixedly connected to the movable block (24), and the left and right sides of the limiting plate (21) are rotatably connected to the rotating plate (22).

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