A lifting device for nuclear industry with self-balancing function

Abstract

This invention discloses a self-balancing lifting device for the nuclear industry, specifically relating to the field of nuclear industry material lifting. It includes a lifting device with mounting bases fixedly installed at both ends. A guide cylinder is fixedly installed at the bottom of each mounting base, and a fixed steel cable is slidably installed inside the guide cylinder. A limit seat is installed at the bottom of the fixed steel cable. A U-shaped mounting frame is fixedly installed at the bottom of the lifting device, and a stabilizing adsorption mechanism is installed at the bottom of the U-shaped mounting frame. Fine-tuning mechanisms are installed on both sides of the bottom of the lifting device. This invention uses a stabilizing adsorption mechanism to locate the center of gravity of irregular nuclear industry materials and adsorbs and supports the adsorption plate and auxiliary plate at the center of gravity, improving the stability of the material during lifting. Furthermore, the limit seats clamp and limit the two ends of the material, and the auxiliary plate and extension plate connect the two limit seats, reducing swaying during the lifting process.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear industry material lifting, and in particular to a nuclear industry lifting device with a self-balancing function. Background Art

[0002] The nuclear industry is a comprehensive emerging industrial sector for the development and utilization of nuclear energy. It includes radioactive geological exploration, uranium mining, hydrometallurgy, uranium refining, uranium isotope separation, nuclear fuel element manufacturing, various types of reactors, nuclear power plants, spent fuel reprocessing, radioactive waste treatment and disposal, lithium isotope separation, radioactive isotope production, nuclear weapons production and other production enterprises and scientific research and design units. It plays an important role in the national economy: using nuclear energy to convert it into electrical energy, thermal energy and mechanical power can obtain safe, clean and high calorific value energy; providing a variety of radioactive isotope products, isotope instruments and radiation technology, and playing a special role in radiation processing, food preservation, medical diagnosis and other aspects; greatly promoting the development of metallurgy, chemical industry, machinery manufacturing, electronics, radiation chemistry, nuclear medicine, nuclear electronics and other fields.

[0003] The nuclear power plants of the nuclear industry are large in size, and many nuclear industry materials need to be lifted before use. With the continuous development of science and technology, more and more practical machines have been manufactured by humans, providing great convenience for production and life. Many manpower has been replaced by machines and used for material handling, which effectively reduces the labor intensity of the staff and makes the production and construction efficiency more efficient.

[0004] For example, during the construction of the Hualong One nuclear island plant, a large amount of materials often need to be transported between work platforms at different heights next to the holes. The use of material lifting devices can greatly improve the efficiency of material transportation. However, most of the existing nuclear industry material lifting devices use cranes and hooks to lift materials. However, when the crane lifts the materials, the hook-type connection easily causes the materials to be unstable, and the materials are prone to tilting, which can easily damage the materials. Therefore, in the actual operation process, most of them need to manually find the center of gravity of the materials, and then hang the hook at the center of gravity of the materials to improve the stability during lifting. However, some nuclear industry materials are irregular in shape and large in size, and it is inconvenient to manually find the center of gravity, which often causes the materials to shake and tilt, causing damage to the nuclear industry materials. Summary of the invention

[0005] The object of the present invention is to provide a lifting device for the nuclear industry with a self-balancing function to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A lifting device for nuclear industry with self-balancing function, comprising a sling, a hook ring is fixedly provided at the upper end of the sling, mounting seats are fixedly provided at both left and right ends of the sling, a guide cylinder is fixedly provided at the bottom end of the mounting seat, a fixed steel cable is slidably provided inside the guide cylinder, a limited position seat is provided at the bottom end of the fixed steel cable, a U-shaped mounting frame is fixedly provided at the bottom end of the sling, a stable adsorption mechanism is provided at the bottom end of the U-shaped mounting frame, and fine-tuning mechanisms are provided on both sides of the bottom end of the sling.

[0007] In a preferred embodiment, one end of the fixed steel cable passes through a guide cylinder and is connected to a winding roller inside a mounting seat, a guide wheel is installed at the end of the guide cylinder, the fixed steel cable passes through the guide wheel, the winding roller is rotatably arranged inside the mounting seat, and one end of the winding roller is fixedly connected to a handle arranged on the outside of the mounting seat, the other end of the winding roller is fixedly connected to a limiting member, one end of the limiting member is connected to a limiting pin, the setting of the guide wheel facilitates the rotation of the fixed steel cable and reduces the friction between the fixed steel cable and the guide cylinder, and the setting of the winding roller facilitates the adjustment and storage of the fixed steel cable, and facilitates the adjustment of the position of the two limit seats one according to the volume of nuclear industry materials, and a limiting seat two is arranged at the lower end of the limit pin.

[0008] In a preferred embodiment, a plurality of limiting holes are circumferentially arranged on the limiting member, an annular limiting groove is opened at one end of the limiting member, a telescopic column is slidably arranged on the limiting pin, a limiting ring is rotatably arranged on the telescopic column, an internal fixing spring of the limiting pin, one end of the telescopic column located inside the limiting pin is fixedly connected to the spring, the limiting ring matches the annular limiting groove, and the arrangement of the limiting member, the limiting hole, the telescopic column, the limiting pin and the limiting ring facilitates the limiting fixation of the winding roller, thereby facilitating the adjustment of the fixed steel cable, without the aid of other tools, easy operation and stable structure.

[0009] In a preferred embodiment, a limiting groove is provided on one side of the limiting seat, a pressure plate is arranged inside the limiting groove, a sliding block is fixedly arranged at one end of the pressure plate, the sliding block is slidably arranged in the sliding groove at one end of the limiting groove, a connecting rod is penetrated by the sliding block, a threaded rod is rotatably arranged on the upper end of the connecting rod, and a limiting rod is fixedly arranged at the bottom end of the connecting rod. The pressure plate can press the nuclear industry material under the drive of the sliding block, thereby realizing the clamping and limiting of the two ends of the nuclear industry material, which is convenient for clamping nuclear industry materials of different sizes.

[0010] In a preferred embodiment, the stable adsorption mechanism includes a reduction motor fixedly arranged on the outer wall of the U-shaped mounting frame, the output shaft of the reduction motor is fixedly connected to the rotating shaft, the rotating shaft is fixedly provided with a first connecting rod and a second connecting rod, the end of the first connecting rod away from the rotating shaft is fixedly connected to a mounting plate, one end of the mounting plate is provided with a fixed splint and a movable splint, and all-round slip sensors are installed on the fixed splint and the movable splint, a battery and a main control chip are fixedly installed inside the mounting plate, the main control chip is electrically connected to the all-round slip sensor, the end of the second connecting rod away from the rotating shaft is fixedly provided with an adsorption plate, the fixed splint and the movable splint in the stable adsorption mechanism can lift the nuclear industry material, judge the center of gravity of the material according to the rotation angle of the nuclear industry material after lifting, and then use the adsorption plate to adsorb at the center of gravity of the nuclear industry material.

[0011] In a preferred embodiment, one end of the movable splint is fixedly connected to a micro-electric telescopic rod embedded in the inner wall of the mounting plate, and pressure sensors are embedded on the inner walls of the fixed splint and the movable splint. The main control chip is electrically connected to the micro-electric telescopic rod and the pressure sensor. A plurality of first suction cups are evenly spaced on the adsorption plate, and cavities are provided inside the adsorption plate, the second connecting rod and the rotating shaft, and the cavity inside the second connecting rod connects the adsorption plate and the cavity inside the rotating shaft. A negative pressure chamber is provided inside the U-shaped mounting frame, and a piston is provided inside the negative pressure chamber. An L-shaped connecting rod is fixedly provided at one end of the piston, and one end of the L-shaped connecting rod passes through the side wall of the U-shaped mounting frame. A reset spring is sleeved on the outer side of one end of the L-shaped connecting rod located inside the U-shaped mounting frame, and one end of the reset spring is fixedly provided at one end of the piston. After the center of gravity of the nuclear industry material is found, the center of gravity finding system is lifted by a reduction motor, and the adsorption plate falls. The first suction cup on the adsorption plate can be used to suck the nuclear industry material tightly to ensure the stability of the material during lifting.

[0012] In a preferred embodiment, an auxiliary plate is arranged between the two limit seats, and extension plates are arranged at both ends of the auxiliary plate. The end of the extension plate away from the auxiliary plate is inserted into the limit seat, and a plurality of rollers are embedded in the upper surface of the auxiliary plate. Second suction cups are arranged on both sides of the upper end of the auxiliary plate. A cavity is opened inside the auxiliary plate, and the cavity inside the auxiliary plate is connected to the negative pressure cavity through a hose. An exhaust port is opened at one end of the negative pressure cavity, and a one-way valve is arranged at the exhaust port. The setting of the auxiliary plate can help people place nuclear industry materials in the limit seat, and can assist people in docking the nuclear industry materials with the movable splint and the fixed splint. Moreover, the auxiliary plate is located at the bottom of the nuclear industry material, which can improve the stability of the material when it is lifted.

[0013] In a preferred embodiment, the extension plate is slidably connected to the auxiliary plate, and locking bolts are provided on both end side walls of the auxiliary plate. A limiting groove is provided on the extension plate, and the limiting groove is a conical structure. The bottom end of the limiting groove matches the limiting rod. The extension plate can extend into the interior of the limiting seat, so that the two limiting seats are connected through the auxiliary plate and the extension plate, thereby reducing the relative shaking between the two limiting seats when the material is lifted.

[0014] In a preferred embodiment, the fine-tuning mechanism includes adjusting steel cables arranged at the left and right ends of the sling, one end of the two adjusting steel cables extends into the interior of the sling and is wound around an adjusting roller, a reduction gear box is fixedly arranged in the middle position of the adjusting roller, the input shaft of the reduction gear box is fixedly connected to the output shaft of the driving motor, and the lower ends of the two adjusting steel cables are respectively connected to the mounting rings arranged on the limit seat. The setting of the fine-tuning mechanism can improve the balance of nuclear industry materials during lifting and prevent imbalance of materials during lifting due to uneven ground.

[0015] In a preferred embodiment, a level is embedded in the surface of the adsorption plate, the level is electrically connected to a main control chip, and the main control chip is electrically connected to a driving motor.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] The present invention is provided with a stable adsorption mechanism, wherein the fixed clamping plate and the movable clamping plate in the stable adsorption mechanism can clamp the irregular nuclear industry material twice, and then the center of gravity of the irregular material is measured according to the rotation angle during the two clampings according to the omnidirectional illusion sensor, and then the adsorption plate in the stable adsorption mechanism is adsorbed at the center of gravity of the irregular material, thereby improving the stability of the nuclear industry material during lifting, and in the process of lifting the material, two limit seats are used to clamp and limit the two ends of the material, thereby improving the stability of the material during lifting;

[0018] The present invention is provided with a fine-adjusting mechanism. When placing irregular materials, both ends are placed in the limiting seat one, and the center of gravity position is adsorbed and supported by the adsorption plate and the auxiliary plate. Since the limiting seat one is directly placed on the ground, the irregular materials are easily tilted due to the uneven ground when placed and lifted. The lifted materials can be leveled by the fine-adjusting mechanism, thereby ensuring the stability of the materials during the lifting process. When the irregular materials are clamped, the rollers on the auxiliary plate can be used to assist in the movement. When lifting, the auxiliary plate and the extension plate can connect the two limiting seats one together, which can prevent the two limiting seats one from sliding relative to each other, and can improve the stability of the materials during lifting.

[0019] When the first suction cup and the second suction cup in the stable adsorption mechanism of the present invention perform negative pressure adsorption on the material, the movement of the movable clamp plate is used to drive the movement of the piston in the negative pressure chamber, and the piston can discharge the gas inside the negative pressure chamber to the outside. When the piston moves in the opposite direction to reset, the negative pressure generated inside the negative pressure chamber can absorb the gas at the first suction cup and the second suction cup, so that the negative pressure generated in the first suction cup and the second suction cup can adsorb the material. The present invention rationally utilizes the movement of the clamp plate when the material finds the center of gravity to realize the negative pressure adsorption function, and arranges the negative pressure chamber inside the U-shaped mounting frame, so that the structure is more compact and the cost is lower, there is no need to set up special negative pressure adsorption equipment, and the weight of the lifting device is reduced.

[0020] In summary, the present invention can find the center of gravity of irregular nuclear industry materials through a stable adsorption mechanism, and adsorb and support the adsorption plate and the auxiliary plate at the center of gravity of the material, which can improve the stability of the material during lifting, and a pair of limit seats are provided to clamp and limit the two ends of the material, and the two limit seats are connected by an auxiliary plate and an extension plate, which can reduce the shaking of the material during lifting, and the self-balancing adjustment of the material during lifting can be achieved through the fine-tuning mechanism. The adsorption of the material by the adsorption plate and the auxiliary plate of the present invention is driven by the movable splint that moves when the center of gravity is found, and there is no need to additionally set up negative pressure adsorption equipment, so that the equipment structure is more compact and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the mounting base of the present invention;

[0024] Figure 3 The present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 4 It is a side view structural schematic diagram of the U-shaped mounting frame of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the mounting plate of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the negative pressure chamber inside the U-shaped mounting frame of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the auxiliary plate of the present invention;

[0029] Figure 8It is a schematic cross-sectional structural diagram of the limiting seat 1 of the present invention;

[0030] Fig. 9 It is a schematic diagram of the internal structure of the sling of the present invention;

[0031] In the figure: 1, sling; 2, hook ring; 3, mounting seat; 4, guide cylinder; 5, fixed steel cable; 6, limit seat 1; 7, U-shaped mounting frame; 8, winding roller; 9, guide wheel; 10, limit piece; 11, limit pin; 12, limit hole; 13, annular limit groove; 14, telescopic column; 15, limit ring; 16, limit groove; 17, pressure plate; 18, sliding block; 19, connecting rod; 20, threaded rod; 21, limit rod; 22, reduction motor; 23, rotating shaft; 24, first connecting rod; 25, second connecting rod; 26. Mounting plate; 27. Fixed splint; 28. Movable splint; 29. ​​All-round sliding sensor; 30. Adsorption plate; 31. Micro electric telescopic rod; 32. First suction cup; 33. Negative pressure chamber; 34. Piston; 35. L-shaped connecting rod; 36. Reset spring; 37. Auxiliary plate; 38. Extension plate; 39. Limiting groove; 40. Adjusting steel cable; 41. Adjusting roller; 42. Driving motor; 43. Mounting ring; 44. Level; 45. Roller; 46. Second suction cup; 47. Hose; 48. Limiting seat II. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 9 The present invention provides a lifting device for the nuclear industry with a self-balancing function, comprising a sling 1, a hook ring 2 is fixedly provided at the upper end of the sling 1, mounting seats 3 are fixedly provided at both left and right ends of the sling 1, a guide cylinder 4 is fixedly provided at the bottom end of the mounting seat 3, a fixed steel cable 5 is slidably provided inside the guide cylinder 4, a limited position seat 6 is provided at the bottom end of the fixed steel cable 5, a U-shaped mounting frame 7 is fixedly provided at the bottom end of the sling 1, a stable adsorption mechanism is provided at the bottom end of the U-shaped mounting frame 7, and fine-tuning mechanisms are provided on both sides of the bottom end of the sling 1.

[0034] In a preferred embodiment, one end of the fixed steel cable 5 passes through the guide cylinder 4 and is connected to the winding roller 8 inside the mounting seat 3. A guide wheel 9 is installed at the end of the guide cylinder 4. The fixed steel cable 5 passes through the guide wheel 9. The winding roller 8 is rotatably set inside the mounting seat 3, and one end of the winding roller 8 is fixedly connected to a handle set on the outside of the mounting seat 3. The other end of the winding roller 8 is fixedly connected to a limiting member 10. One end of the limiting member 10 is inserted with a limiting pin 11. The setting of the guide wheel 9 facilitates the rotation of the fixed steel cable 5 and reduces the friction between the fixed steel cable 5 and the guide cylinder 4. The setting of the winding roller 8 facilitates the adjustment and storage of the fixed steel cable 5, and facilitates the adjustment of the positions of the two limiting seats 6 according to the volume of nuclear industry materials. A limiting seat 48 is set at the lower end of the limiting pin 11.

[0035] In a preferred embodiment, a plurality of limiting holes 12 are circumferentially arranged on the limiting member 10, an annular limiting groove 13 is opened at one end of the limiting member 10, a telescopic column 14 is slidably arranged on the limiting pin 11, a limiting ring 15 is rotatably arranged on the telescopic column 14, a spring is fixed inside the limiting pin 11, one end of the telescopic column 14 located inside the limiting pin 11 is fixedly connected to the spring, and the limiting ring 15 matches the annular limiting groove 13.

[0036] For details, please refer to Figure 1-Figure 3 When the winding roller 8 is installed and fixed, the limit pin 11 is inserted into the limit member 10, and then the telescopic column 14 is pressed down, so that the limit ring 15 on the telescopic column 14 is clamped into the annular limit groove 13. The limit ring 15 is clamped in the annular limit groove 13 under the action of the spring, thereby realizing the limit fixation of the limit member 10 and the winding roller 8. The structure is simple and the operation is convenient.

[0037] In a preferred embodiment, a limiting groove 16 is opened on one side of the limiting seat 6, and a pressure plate 17 is arranged inside the limiting groove 16. A sliding block 18 is fixedly arranged at one end of the pressure plate 17. The sliding block 18 is slidably arranged in the sliding groove at one end of the limiting groove 16. A connecting rod 19 is penetrated by the sliding block 18. A threaded rod 20 is rotatably arranged on the upper end of the connecting rod 19, and a limiting rod 21 is fixedly arranged at the bottom end of the connecting rod 19. The pressure plate 17 can press the nuclear industry material under the drive of the sliding block 18, so as to realize the clamping and limiting of the two ends of the nuclear industry material, and facilitate the clamping of nuclear industry materials of different sizes.

[0038] In a preferred embodiment, the stable adsorption mechanism includes a reduction motor 22 fixedly arranged on the outer side wall of the U-shaped mounting frame 7, the output shaft of the reduction motor 22 is fixedly connected to the rotating shaft 23, the rotating shaft 23 is fixedly provided with a first connecting rod 24 and a second connecting rod 25, the first connecting rod 24 is fixedly connected to a mounting plate 26 at one end away from the rotating shaft 23, a fixed splint 27 and a movable splint 28 are arranged at one end of the mounting plate 26, and a full-range sliding sensor 29 is installed on both the fixed splint 27 and the movable splint 28, a battery and a main control chip are fixedly installed inside the mounting plate 26, and the main control chip is electrically connected to the full-range sliding sensor 29, an adsorption plate 30 is fixedly arranged at one end of the second connecting rod 25 away from the rotating shaft 23, and one end of the movable splint 28 is fixedly connected to a micro-electric telescopic sensor embedded in the inner side wall of the mounting plate 26 Rod 31, pressure sensors are embedded on the inner walls of the fixed splint 27 and the movable splint 28, the main control chip is electrically connected to the micro electric telescopic rod 31 and the pressure sensor, a plurality of first suction cups 32 are evenly spaced on the adsorption plate 30, cavities are provided inside the adsorption plate 30, the second connecting rod 25 and the rotating shaft 23, and the cavity inside the second connecting rod 25 connects the adsorption plate 30 and the cavity inside the rotating shaft 23, a negative pressure chamber 33 is provided inside the U-shaped mounting frame 7, a piston 34 is provided inside the negative pressure chamber 33, an L-shaped connecting rod 35 is fixedly provided at one end of the piston 34, one end of the L-shaped connecting rod 35 passes through the side wall of the U-shaped mounting frame 7, a return spring 36 is sleeved on the outer side of one end of the L-shaped connecting rod 35 located inside the U-shaped mounting frame 7, and one end of the return spring 36 is fixedly provided at one end of the piston 34.

[0039] For specific use, please refer to Figure 1 and Figure 4-Figure 7When finding the center of gravity of irregular nuclear industry materials, the first connecting rod 24 rotates downward when the reduction motor 22 rotates, so that the mounting plate 26 moves to the bottom, and then one end of the nuclear industry material is lifted. When the nuclear industry material is lifted, the bottom end can move with the assistance of the roller 45 on the upper surface of the auxiliary plate 37, and then the fixed clamping plate 27 and the movable clamping plate 28 on the mounting plate 26 are used to clamp one end of the nuclear industry material, and then the crane is used to lift the sling 1. When the sling 1 is lifted, the nuclear industry material is grabbed due to the clamping effect of the fixed clamping plate 27 and the movable clamping plate 28. When the nuclear industry material completely leaves the ground, the omnidirectional sliding sensor 29 is used to measure the rotation angle of the nuclear industry material, and the measured rotation angle is used to determine the center of gravity position of the nuclear industry material. The specific calculation steps of the center of gravity can refer to the Chinese patent authorization announcement number: CN 108818586 B discloses a method for detecting the center of gravity of an object suitable for automatic grasping by a robot. The center of gravity of the material measured by the above method can be displayed on a display screen on the mounting plate 26. The mounting plate 26 is lifted up by the rotation of the reduction motor 22, and the adsorption plate 30 is rotated downward to the bottom. The mounting plate 26 is at the highest end at this time, and the movable splint 28 is located on one side of the L-shaped connecting rod 35. The movement of the movable splint 28 pushes the L-shaped connecting rod 35 to move. A through groove for the movement of the L-shaped connecting rod 35 is provided on the inner side wall of the U-shaped mounting frame 7, so that the piston 34 moves inside the negative pressure chamber 33, and the piston 34 discharges the gas inside the negative pressure chamber 33. When the movable splint 28 moves in the reverse direction, the piston 34 moves in the reverse direction under the action of the reset spring 36, so that negative pressure is generated inside the negative pressure chamber 33, thereby evacuating the first suction cup 32 and the second suction cup 46, and the first suction cup 32 and the second suction cup 46 are used to suck the material tightly.

[0040] In a preferred embodiment, an auxiliary plate 37 is arranged between the two limit seats 6, and extension plates 38 are arranged at both ends of the auxiliary plate 37. The end of the extension plate 38 away from the auxiliary plate 37 is plugged into the limit seat 6, and a plurality of rollers 45 are embedded on the upper surface of the auxiliary plate 37. Second suction cups 46 are arranged on both sides of the upper end of the auxiliary plate 37. A cavity is opened inside the auxiliary plate 37, and the cavity inside the auxiliary plate 37 is connected to the negative pressure chamber 33 through a hose 47. An exhaust port is opened at one end of the negative pressure chamber 33, and a one-way valve is arranged at the exhaust port. When in specific use, an air guide port is arranged on the auxiliary plate 37, and the air guide port can be sealed and plugged with the hose 47. When the negative pressure chamber 33 inhales air, the cavity inside the auxiliary plate 37 can be sucked empty.

[0041] In a preferred embodiment, the extension plate 38 is slidably connected to the auxiliary plate 37, and locking bolts are provided on the side walls at both ends of the auxiliary plate 37. A limiting groove 39 is provided on the extension plate 38, and the limiting groove 39 is a conical structure, and the bottom end of the limiting groove 39 matches the limiting rod 21. The extension plate 38 and the auxiliary plate 37 can be fixed by using the locking bolts, and the sliding of the extension plate 38 inside the auxiliary plate 37 can clamp nuclear industry materials of different sizes. The matching of the limiting groove 39 and the limiting rod 21 facilitates the installation and docking of the limiting seat 6 and the extension plate 38.

[0042] In a preferred embodiment, the fine-tuning mechanism includes adjusting steel cables 40 arranged at the left and right ends of the sling 1, one ends of the two adjusting steel cables 40 are both extended into the interior of the sling 1 and are wound around an adjusting roller 41, a reduction gear box is fixedly arranged at the middle position of the adjusting roller 41, the input shaft of the reduction gear box is fixedly connected to the output shaft of the driving motor 42, the lower ends of the two adjusting steel cables 40 are respectively connected to the mounting rings 43 arranged on the limit seat 6, a spirit level 44 is embedded in the surface of the adsorption plate 30, the spirit level 44 is electrically connected to the main control chip, and the main control chip is electrically connected to the driving motor 42. During specific use, the spirit level 44 can be used to monitor the levelness of the nuclear industry material, and then the fine-tuning mechanism is used to adjust the balance of the nuclear industry material, which can prevent the nuclear industry material from tilting during lifting due to uneven ground or errors in the fixed steel cable 5.

[0043] The working principle of the present invention is as follows: the hook ring 2 on the sling 1 is hung on the crane, the sling 1 is suspended and lifted by the crane, and then the auxiliary plate 37 is laid under the sling 1, the nuclear industry material to be lifted is placed on the auxiliary plate 37, one end of the nuclear industry material is lifted, so that one end of the nuclear industry material is placed between the fixed clamping plate 27 and the movable clamping plate 28 at the bottom end of the mounting plate 26, the micro electric telescopic rod 31 is opened, and the movable clamping plate 28 is driven to move by the telescopic movement of the micro electric telescopic rod 31, and the movable clamping plate 28 moves toward the fixed clamping plate 27, so that the fixed clamping plate 27 and the movable clamping plate 28 are aligned with the nuclear industry material. Clamping is performed, and after the clamping is completed, the sling 1 is lifted by a crane. When the sling 1 is lifted, the nuclear industry material can be lifted by clamping the fixed clamping plate 27 and the movable clamping plate 28. When the nuclear industry material completely leaves the auxiliary plate 37, the omnidirectional sliding sensor 29 can detect the rotation angle of the nuclear industry material; then the nuclear industry material is put down and the material is clamped in another direction, and then the material is lifted again. The center of gravity of the irregular material is obtained according to the rotation angles of the material when it is lifted twice. A display screen can be set on the mounting plate 26 to display the center of gravity of the nuclear industry material on the display screen;

[0044] After the center of gravity of the nuclear industry material is found, the reduction motor 22 rotates to drive the rotating shaft 23 to rotate, and the rotating shaft 23 drives the first connecting rod 24 and the second connecting rod 25 to rotate, so that the first connecting rod 24 drives the mounting plate 26 to move upward, and the second connecting rod 25 drives the adsorption plate 30 to move downward, and the adsorption plate 30 is adjusted to the lowest end, and the mounting plate 26 is adjusted to the highest end. At this time, the movable splint 28 on the mounting plate 26 is located on one side of the L-shaped connecting rod 35, and the cavity inside the adsorption plate 30 and the auxiliary plate 37 are connected by a hose 47, and the nuclear industry material is placed on the auxiliary plate 37. The first suction cup 32 at the bottom end of the adsorption plate 30 is distributed at the center of gravity of the nuclear industry material, and then the micro-electric telescopic rod 31 is opened, and the micro-electric telescopic When the rod 31 drives the movable splint 28 to move, the movable splint 28 can drive the piston 34 to move inside the negative pressure chamber 33 by pushing the L-shaped connecting rod 35, and the piston 34 can discharge the gas inside the negative pressure chamber 33 through the exhaust port. When the movable splint 28 moves in the reverse direction, the L-shaped connecting rod 35 loses the limiting effect of the movable splint 28 and moves in the reverse direction under the action of the reset spring 36. The piston 34 moves in the reverse direction inside the negative pressure chamber 33, so that negative pressure is generated inside the negative pressure chamber 33. The first suction cup 32 and the second suction cup 46 are vacuumed through the second connecting rod 25 and the cavity inside the adsorption plate 30, the auxiliary plate 37 is used to support the nuclear industry material, and the first suction cup 32 is used to adsorb the center of gravity of the nuclear industry material.

[0045] After the center of gravity of the nuclear industry material is fixed by adsorption, the fixed steel cable 5 is wound by rotating the winding roller 8, and the positions of the two limit seats 6 are adjusted, and the two limit seats 6 are clamped at the two ends of the nuclear industry material. When clamping, the two ends of the nuclear industry material are clamped into the limit grooves 16 on one side of the limit seat 6, and then the extension plates 38 at both ends of the auxiliary plate 37 are extended, so that one end of the extension plate 38 is extended into one end of the limit seat 6, and then the threaded rod 20 is twisted. When the threaded rod 28 is rotated, the connecting rod 19 and the limit rod 21 can be vertically adjusted. When the connecting rod 19 moves, the pressing plate 17 can be driven to press downward, and the pressing plate 17 is used to press the nuclear industry material, and the limiting rod 21 can be extended into the limiting groove 39 when moving, so as to achieve the docking of the extension plate 38 and the limiting seat 16, and the two limiting seats 16 are connected by the auxiliary plate 37 and the extension plate 38, and the limiting seat 16 and the auxiliary plate 37 are placed on a stable ground, so that the nuclear industry material is initially leveled and fixed, and then the winding roller 8 is rotated to wind up the redundant fixing steel cable 5, so that the tension of the fixing steel cable 5 is similar;

[0046] After the adjustment is completed, the sling 1 is lifted by a crane. After the sling 1 is lifted, the nuclear industry material can be lifted by fixing the steel cable 5, the limit seat 6, the adsorption plate 30 and other structures. After the limit seat 6 and the auxiliary plate 37 are completely separated from the ground, the limit seat 6 is supported to make the equipment stop steadily, and the balance of the nuclear industry material is detected by the level meter 44. If the nuclear industry material is uneven in the horizontal direction, the main control chip controls the drive motor 42 to turn on, and the drive motor 42 drives the adjusting roller 41 to rotate. Specifically, two winding grooves can be set on the adjusting roller 41, and the two adjusting steel cables 40 are respectively wound in the two winding grooves. When the adjusting roller 41 rotates, one adjusting steel cable 40 is wound and the other adjusting steel cable 40 is loosened, so that the adjusting steel cable 40 pulls the limit seat 6 to deflect, so that the limit seat 6 drives one end of the nuclear industry material to adjust, so that the nuclear industry material is level, and then continue to use the crane to lift the sling 1 to a certain height.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Finally, it should be noted that the above description 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 replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lifting device for use in the nuclear industry with a self-balancing function, comprising a sling (1), wherein a hook ring (2) is fixedly provided at the upper end of the sling (1), characterized in that: The left and right ends of the sling (1) are fixedly provided with mounting seats (3), the bottom end of the mounting seat (3) is fixedly provided with a guide cylinder (4), a fixed steel cable (5) is slidably provided inside the guide cylinder (4), a limited position seat (6) is provided at the bottom end of the fixed steel cable (5), a U-shaped mounting frame (7) is fixedly provided at the bottom end of the sling (1), a stable adsorption mechanism is provided at the bottom end of the U-shaped mounting frame (7), and fine-tuning mechanisms are provided on both sides of the bottom end of the sling (1); The stable adsorption mechanism comprises a reduction motor (22) fixedly arranged on the outer side wall of the U-shaped mounting frame (7); the output shaft of the reduction motor (22) is fixedly connected to the rotating shaft (23); the rotating shaft (23) is fixedly provided with a first connecting rod (24) and a second connecting rod (25); the end of the first connecting rod (24) away from the rotating shaft (23) is fixedly connected to a mounting plate (26); one end of the mounting plate (26) is provided with a fixed clamping plate (27) and a movable clamping plate (28); and both the fixed clamping plate (27) and the movable clamping plate (28) are installed with an omnidirectional slip sensor (29); a battery and a main control chip are fixedly installed inside the mounting plate (26); the main control chip is electrically connected to the omnidirectional slip sensor (29); and the end of the second connecting rod (25) away from the rotating shaft (23) is fixedly provided with an adsorption plate (30); One end of the movable splint (28) is fixedly connected to a micro electric telescopic rod (31) embedded in the inner wall of the mounting plate (26); pressure sensors are embedded in the inner walls of the fixed splint (27) and the movable splint (28); the main control chip is electrically connected to the micro electric telescopic rod (31) and the pressure sensor; a plurality of first suction cups (32) are evenly spaced on the adsorption plate (30); cavities are formed inside the adsorption plate (30), the second connecting rod (25) and the rotating shaft (23); and the second connecting rod (25) has a plurality of first suction cups (32) disposed therein. The cavity of the adsorption plate (30) and the cavity inside the rotating shaft (23) are connected, a negative pressure cavity (33) is provided inside the U-shaped mounting frame (7), a piston (34) is provided inside the negative pressure cavity (33), an L-shaped connecting rod (35) is fixedly provided at one end of the piston (34), one end of the L-shaped connecting rod (35) passes through the side wall of the U-shaped mounting frame (7), a return spring (36) is sleeved on the outer side of one end of the L-shaped connecting rod (35) located inside the U-shaped mounting frame (7), and one end of the return spring (36) is fixedly provided at one end of the piston (34); An auxiliary plate (37) is arranged between the two limit seats (6), and extension plates (38) are arranged at both left and right ends of the auxiliary plate (37), and one end of the extension plate (38) away from the auxiliary plate (37) is inserted into the limit seat (6), and a plurality of rollers (45) are embedded in the upper surface of the auxiliary plate (37), and second suction cups (46) are arranged on both sides of the upper end of the auxiliary plate (37). A cavity is provided inside the auxiliary plate (37), and the cavity inside the auxiliary plate (37) is connected to the negative pressure chamber (33) through a hose (47), and an exhaust port is provided at one end of the negative pressure chamber (33), and a one-way valve is provided at the exhaust port; The extension plate (38) is slidably connected to the auxiliary plate (37); locking bolts are provided on both end side walls of the auxiliary plate (37); a limiting groove (39) is provided on the extension plate (38); the limiting groove (39) is a conical structure, and the bottom end of the limiting groove (39) matches the limiting rod (21).

2. A lifting device for nuclear industry with self-balancing function according to claim 1, characterized in that: One end of the fixed steel cable (5) passes through the guide cylinder (4) and is connected to the winding roller (8) inside the mounting seat (3); a guide wheel (9) is installed at the end of the guide cylinder (4); the fixed steel cable (5) passes through the guide wheel (9); the winding roller (8) is rotatably arranged inside the mounting seat (3); one end of the winding roller (8) is fixedly connected to a handle arranged on the outside of the mounting seat (3); the other end of the winding roller (8) is fixedly connected to a limiting member (10); one end of the limiting member (10) is plugged into a limiting pin (11); and a limiting seat 2 (48) is arranged at the lower end of the limiting pin (11).

3. A lifting device for nuclear industry with self-balancing function according to claim 2, characterized in that: The limiting member (10) is provided with a plurality of limiting holes (12) in the circumferential direction, an annular limiting groove (13) is provided at one end of the limiting member (10), a telescopic column (14) is slidably provided on the limiting pin (11), a limiting ring (15) is rotatably provided on the telescopic column (14), a spring is fixed inside the limiting pin (11), one end of the telescopic column (14) located inside the limiting pin (11) is fixedly connected to the spring, and the limiting ring (15) matches the annular limiting groove (13).

4. The nuclear industry lifting device with self-balancing function according to claim 1, characterized in that: A limiting groove (16) is provided on one side of the limiting seat (6), a pressure plate (17) is provided inside the limiting groove (16), a sliding block (18) is fixedly provided at one end of the pressure plate (17), the sliding block (18) is slidably provided in a sliding groove at one end of the limiting groove (16), a connecting rod (19) is provided through the sliding block (18), a threaded rod (20) is rotatably provided at the upper end of the connecting rod (19), and a limiting rod (21) is fixedly provided at the bottom end of the connecting rod (19).

5. The nuclear industry lifting device with self-balancing function according to claim 1, characterized in that: The fine-tuning mechanism comprises adjusting steel cables (40) arranged at the left and right ends of the sling (1), one end of each of the two adjusting steel cables (40) extends into the interior of the sling (1) and is wound around an adjusting roller (41), a reduction gearbox is fixedly arranged at the middle position of the adjusting roller (41), the input shaft of the reduction gearbox is fixedly connected to the output shaft of the driving motor (42), and the lower ends of the two adjusting steel cables (40) are respectively connected to mounting rings (43) arranged on a limiting seat (6).

6. The nuclear industry lifting device with self-balancing function according to claim 5, characterized in that: A level meter (44) is embedded and installed on the surface of the adsorption plate (30); the level meter (44) is electrically connected to a main control chip; and the main control chip is electrically connected to a drive motor (42).

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