Fall arrest hoist device, hoist and method for hoisting radioactive equipment

Abstract

The application discloses a kind of anti-falling lifting device, crane and the lifting method of radioactive equipment, by guiding to sling, when heavy object is lifted by sling, the stability of heavy object is kept, and when the descending speed of sling is greater than preset speed, the sling can be lifted to prevent heavy object from falling.The anti-falling lifting device includes long-distance hanging sling (1), guide assembly (3) and anti-falling assembly (2).Long-distance hanging sling (1) is connected with crane, for lifting heavy object.Guide assembly (3) is connected with long-distance hanging sling (1), for guiding long-distance hanging sling (1) when long-distance hanging sling (1) is lifted.Anti-falling assembly (2) is connected with guide assembly (3), for lifting under the driving of guide assembly (3), and when the descending speed of long-distance hanging sling (1) is greater than preset speed, long-distance hanging sling (1) is lifted, so that long-distance hanging sling (1) stops descending.

Description

Technical Field

[0001] This invention belongs to the field of nuclear chemical technology, specifically relating to a fall-prevention lifting device, a crane, and a method for lifting radioactive equipment. Background Technology

[0002] For components requiring maintenance in special environments (such as reprocessing plants in the nuclear chemical industry), direct personnel inspection and disassembly are not feasible, especially for large and heavy components. These components must be lifted out of the special environment before maintenance can be performed. Furthermore, components requiring maintenance in special environments have high safety requirements, and equipment stability must be ensured during the lifting process.

[0003] Existing conventional cranes typically use lifting ropes and hooks to lift parts that need to be repaired. These parts are prone to swaying during the lifting process, and the lifting ropes are at risk of breaking after long-term use. If the lifting ropes break, the object will fall and be damaged.

[0004] Therefore, ensuring the stability of the parts to be inspected during hoisting and preventing them from falling is a problem that needs to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art by providing a fall-prevention lifting device, a crane, and a method for lifting radioactive equipment. By guiding the lifting device, the lifting device is kept stable when lifting heavy objects, and the lifting device can be supported when the falling speed of the lifting device exceeds a preset speed to prevent the heavy objects from falling.

[0006] In a first aspect, embodiments of the present invention provide a fall-prevention lifting device, comprising a long-distance attachment lifting device, a guide assembly, and a fall-prevention assembly. The long-distance attachment lifting device is connected to a crane and is used to lift heavy objects. The guide assembly is connected to the long-distance attachment lifting device and is used to guide the long-distance attachment lifting device during lifting and lowering. The fall-prevention assembly is connected to the guide assembly and is used to lift and lower under the drive of the guide assembly, and when the descent speed of the long-distance attachment lifting device exceeds a preset speed, it lifts the long-distance attachment lifting device to stop its descent.

[0007] In some embodiments, the guiding assembly includes a first guide rail and a connector. The first guide rail is fixed to a first reference plane and is arranged vertically. The connector is slidably disposed on the first guide rail and connected to the remote-mounted lifting device to move up and down under the drive of the remote-mounted lifting device and to guide the remote-mounted lifting device.

[0008] In some embodiments, the fall arrestor assembly includes a second guide rail, a support plate, and a fall arrestor structure. The second guide rail is fixed to a second reference surface and is arranged parallel to the first guide rail. The support plate is slidably disposed on the second guide rail, with a portion of the support plate extending directly below the remote-attached lifting device. The support plate is capable of supporting the remote-attached lifting device. The support plate is connected to the connector to move up and down along the second guide rail under the drive of the connector. The fall arrestor structure includes a centrifugal speed limiter and a safety clamp. The centrifugal speed limiter is fixed to the top of the second guide rail. The wire rope of the centrifugal speed limiter is connected to the support plate and the safety clamp, respectively, to detect the descent speed of the support plate through the wire rope. When the descent speed of the support plate exceeds a preset speed, the safety clamp is activated by the wire rope. The safety clamp is fixed to the support plate and is used to clamp the second guide rail and self-lock during operation, stopping the descent of the support plate. Thus, the support plate supports the remote-attached lifting device, stopping its descent.

[0009] In some embodiments, the guide assembly further includes a slide rail slidably disposed on the first guide rail, the length of the slide rail being greater than the length of the connector. The connector is fixed to the slide rail, and the tray is connected to the connector via the slide rail.

[0010] In some embodiments, the long-distance lifting device includes a frame, a telescopic hook, and multiple zippers. The frame is used to lift heavy objects; the connector is connected to the frame; a portion of the support plate extends directly beneath the frame to support it. A first end of the telescopic hook is fixed to the center of the frame, and a second end is connected to a crane. The first ends of the multiple zippers are connected to the second ends of the telescopic hook, and the second ends of the multiple zippers are respectively connected to various edges of the frame.

[0011] In some embodiments, the connector is provided with a connection hole facing the long-distance hanging device. The long-distance hanging device is provided with a horizontal hook and a horizontal operating disc; the horizontal hook can extend into the connection hole, and the horizontal operating disc is kinetically connected to the horizontal hook. After the horizontal hook extends into the connection hole, rotating the horizontal operating disc can drive the horizontal hook to rotate, thereby realizing the engagement and disengagement of the horizontal hook from the connector.

[0012] In some embodiments, the long-distance hanging device is further provided with a vertical hook and a vertical operating panel. The vertical hook is located below the long-distance hanging device, and the vertical hook and the vertical operating panel are connected by a transmission connection; rotating the vertical operating panel can drive the vertical hook to rotate, enabling the vertical hook to be attached to and detached from the load.

[0013] In some embodiments, the number of the guide assembly and the fall arrestor assembly are both two, and they are arranged in pairs, with the two pairs of guide assemblies and the fall arrestor assembly located on the same side of the long-distance hanging sling.

[0014] Therefore, the anti-fall lifting device in this embodiment of the invention, by setting a long-distance attachment lifting tool, allows the long-distance attachment lifting tool to be connected to a crane to lift heavy objects; by setting a guide component and connecting the guide component to the long-distance attachment lifting tool, the long-distance attachment lifting tool can be guided during lifting and lowering, which can reduce or avoid horizontal displacement of the long-distance attachment lifting tool, reduce or avoid swaying of the long-distance attachment lifting tool, and keep the long-distance attachment lifting tool stable during lifting and lowering, thereby maintaining the stability of the heavy object, and keeping the heavy object stable when the long-distance attachment lifting tool lifts the heavy object; by setting an anti-fall lifting device... The fall arrestor assembly can lift the remotely attached lifting device when its descent speed exceeds a preset speed, stopping its descent and preventing the load from falling and causing damage. By connecting the fall arrestor assembly to a guide assembly, which in turn is connected to the remotely attached lifting device, the fall arrestor assembly can move up and down with the device, ensuring timely support and preventing the distance between them from being too great.

[0015] Secondly, embodiments of the present invention also provide a crane, which includes a crane body and the fall arrestor lifting device described in the first aspect. The crane body has a hook capable of being raised and lowered. The hook of the crane body is connected to a remote attachment lifting device of the fall arrestor lifting device, so as to drive the remote attachment lifting device to be raised and lowered via the hook.

[0016] Thirdly, embodiments of the present invention also provide a method for lifting a radioactive device. The method for lifting the radioactive device uses the fall-prevention lifting device described in the first aspect. The method for lifting the radioactive device includes: connecting a crane to a remote attachment lifting device of the fall-prevention lifting device; the crane lowering the remote attachment lifting device to the radioactive device and attaching the remote attachment lifting device to the radioactive device; and the crane raising the remote attachment lifting device to a target position and separating the remote attachment lifting device from the radioactive device.

[0017] The lifting method for cranes and radioactive equipment provided in this embodiment of the invention has the same beneficial effects as the above-mentioned anti-fall lifting device, and will not be described again here. Attached Figure Description

[0018] Figure 1 : A structural diagram of a fall-prevention lifting device provided in an embodiment of the present invention;

[0019] Figure 2 : A structural diagram of a guide component provided in an embodiment of the present invention;

[0020] Figure 3 : A structural diagram of a fall arrestor assembly provided in an embodiment of the present invention;

[0021] Figure 4 : A partial structural diagram of a fall-prevention lifting device provided in an embodiment of the present invention;

[0022] Figure 5 : A structural diagram of a long-distance hanging device provided in an embodiment of the present invention;

[0023] Figure 6 : A structural diagram of a horizontal hook and a horizontal operating panel provided in an embodiment of the present invention;

[0024] Figure 7 : A structural diagram of a vertical hook and a vertical operating panel provided in an embodiment of the present invention.

[0025] Among them, 1-long-distance hanging device; 2-fall protection component; 3-guide component; 4-telescopic hook; 5-zipper; 6-frame; 7-vertical hook; 8-horizontal hook; 9-vertical control panel; 10-horizontal control panel; 11-first guide rail; 12-slide rail; 13-connector; 14-second guide rail; 15-plate; 16-fall protection structure; 17-second positioning rod. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1:

[0028] like Figure 1 As shown, this embodiment of the invention provides a fall-prevention lifting device, which is used during the lifting process to lift heavy objects after being connected to a crane.

[0029] like Figure 1 As shown, the fall arrestor lifting device includes a long-distance attachment lifting device 1, a guide assembly 3, and a fall arrestor assembly 2. The long-distance attachment lifting device 1 is connected to a crane and used to lift heavy objects. The guide assembly 3 is connected to the long-distance attachment lifting device 1 and guides it during lifting and lowering. The fall arrestor assembly 2 is connected to the guide assembly 3 and is lifted and lowered under the influence of the guide assembly 3. When the descent speed of the long-distance attachment lifting device 1 exceeds a preset speed, the fall arrestor assembly 2 supports the long-distance attachment lifting device 1, stopping its descent.

[0030] For example, the upper end of the remote-attached lifting device 1 is connected to the hook of the crane, and the lower end of the remote-attached lifting device 1 is attached to the heavy object.

[0031] After the lower end of the long-distance lifting device 1 is attached to the heavy object, the long-distance lifting device 1 can be lifted by the crane hook so that the heavy object can be moved by the long-distance lifting device 1.

[0032] For example, the guide component 3 is located on one side of the remotely attached lifting device 1 to avoid the guide component 3 affecting the lifting and lowering of the remotely attached lifting device 1.

[0033] For example, the long-distance splicing device 1 is rectangular in shape, and the guide component 3 is located on one side of any long side of the long-distance splicing device 1, or the guide component 3 may also be located on one side of any short side of the long-distance splicing device 1.

[0034] After the guide component 3 guides the remote-distance lifting device 1, it can reduce or avoid the displacement of the remote-distance lifting device 1 in the horizontal direction when the remote-distance lifting device 1 is raised or lowered, thereby reducing or avoiding the swaying of the remote-distance lifting device 1 and keeping the remote-distance lifting device 1 stable when it is raised or lowered, thus keeping the heavy object stable. In other words, the remote-distance lifting device 1 can keep the heavy object stable when it is lifted.

[0035] For example, the fall arrestor 2 and the guide assembly 3 are located on the same side of the remotely attached lifting device 1 to facilitate the connection between the fall arrestor 2 and the guide assembly 3.

[0036] Understandably, when lifting heavy objects with the remote-connected lifting device 1, if the remote-connected lifting device 1 falls due to an emergency (such as the lifting rope breaking or the crane becoming detached from the remote-connected lifting device 1), the descent speed of the remote-connected lifting device 1 will increase to a speed greater than the maximum speed during normal descent of the crane.

[0037] For example, different cranes have different maximum speeds during normal descent. The preset speed in this application can be flexibly set according to the different maximum speeds during normal descent of the crane. Theoretically, the preset speed in this application can be greater than the maximum speed during normal descent of the crane.

[0038] For example, the preset speed can be set to 110% of the maximum speed when the crane is descending normally, so as to reduce the possibility that the anti-fall component 2 will abnormally lift the remote-connected lifting device 1 when it is descending normally due to accidental errors, thus affecting the normal lifting of heavy objects.

[0039] In this embodiment, the anti-fall component 2 can lift the remote-distance hanging device 1 when the descent speed of the remote-distance hanging device 1 is greater than the preset speed, so as to stop the descent of the remote-distance hanging device 1 and thus prevent the heavy object hoisted on the remote-distance hanging device 1 from falling and being damaged.

[0040] The fall arrestor 2 is connected to the guide component 3 and can rise and fall under the drive of the guide component 3. The guide component 3 is connected to the long-distance hanging device 1. Therefore, the fall arrestor 2 can follow the long-distance hanging device 1 to rise and fall, avoiding the distance between the fall arrestor 2 and the long-distance hanging device 1 being too far, which would affect the timeliness of the fall arrestor 2 in supporting the long-distance hanging device 1.

[0041] Therefore, the anti-fall lifting device in this embodiment of the invention, by setting a long-distance attachment lifting device 1, allows the long-distance attachment lifting device 1 to be connected to a crane to lift heavy objects; by setting a guide component 3 and connecting the guide component 3 to the long-distance attachment lifting device 1, the long-distance attachment lifting device 1 can be guided during lifting and lowering, which can reduce or avoid horizontal displacement of the long-distance attachment lifting device 1, reduce or avoid swaying of the long-distance attachment lifting device 1, and keep the long-distance attachment lifting device 1 stable during lifting and lowering, thereby maintaining the stability of the heavy object, and keeping the heavy object stable when the long-distance attachment lifting device 1 lifts the heavy object; by setting an anti-fall component 2. When the descent speed of the remotely attached lifting device 1 exceeds a preset speed, the fall arrestor 2 can lift the remotely attached lifting device 1, stopping its descent and preventing the heavy object lifted on it from falling and being damaged. By connecting the fall arrestor 2 to the guide component 3 and being able to rise and fall under the drive of the guide component 3, which in turn is connected to the remotely attached lifting device 1, the fall arrestor 2 can follow the rise and fall of the remotely attached lifting device 1, preventing the distance between the fall arrestor 2 and the remotely attached lifting device 1 from being too far, which would affect the timeliness of the fall arrestor 2 lifting the remotely attached lifting device 1.

[0042] In some embodiments, combined with Figure 1 and Figure 2 The guide assembly 3 includes a first guide rail 11 and a connector 13. The first guide rail 11 is fixed to a first reference surface and is arranged in a vertical direction. The connector 13 is slidably disposed on the first guide rail 11 and is connected to the remote-mounted lifting device 1 so as to be raised and lowered under the drive of the remote-mounted lifting device 1 and to guide the remote-mounted lifting device 1.

[0043] For example, the first reference surface is a fixed surface inside the factory building, used to support the first guide rail 11, such as the ground or a horizontal surface.

[0044] The connector 13 can move up and down along the first guide rail 11. Since the connector 13 is connected to the remote-distance lifting device 1, when the remote-distance lifting device 1 is raised and lowered by the crane, it can drive the connector 13 to move up and down along the first guide rail 11. The up-and-down movement of the connector 13 restricts the horizontal displacement of the remote-distance lifting device 1, reducing or preventing swaying of the remote-distance lifting device 1, thus keeping the remote-distance lifting device 1 stable during raising and lowering, and consequently maintaining the stability of the load.

[0045] In some embodiments, combined with Figure 1 , Figure 3 and Figure 4 The fall arrestor assembly 2 includes a second guide rail 14, a support plate 15, and a fall arrestor structure 16. The second guide rail 14 is fixed to a second reference surface and is arranged parallel to the first guide rail 11. The support plate 15 is slidably mounted on the second guide rail 14, with a portion of the support plate 15 extending directly below the remote-mounted lifting device 1, enabling the support plate 15 to support the remote-mounted lifting device 1. The support plate 15 is connected to a connector 13 to move up and down along the second guide rail 14 under the action of the connector 13. The fall arrestor structure 16 includes a centrifugal speed limiter and a safety clamp. The centrifugal speed limiter is fixed to the top of the second guide rail 14, and its wire rope is connected to the support plate 15 and the safety clamp, respectively, to detect the descent speed of the support plate 15 through the wire rope, and to activate the safety clamp when the descent speed of the support plate 15 exceeds a preset speed. The safety clamp is fixed on the support plate 15 and is used to clamp the second guide rail 14 and self-lock during operation, so that the support plate 15 stops descending, thereby lifting the remote-connected lifting device 1 through the support plate 15 and stopping the remote-connected lifting device 1 from descending.

[0046] For example, the second reference surface is a fixed surface inside the factory building, used to support the first guide rail 11, such as the ground or a horizontal surface.

[0047] For example, the second reference plane and the first reference plane can be the same reference plane.

[0048] For example, the second guide rail 14 is arranged in the vertical direction.

[0049] For example, such as Figure 4 As shown, when the long-distance hoisting device 1 drives the connecting piece 13 to rise and fall, the pallet 15 is simultaneously lifted and lowered along the second guide rail 14 under the drive of the connecting piece 13, so as to improve the timeliness of the pallet 15 when the long-distance hoisting device 1 is connected.

[0050] It should be noted that the working principle of the centrifugal speed governor and safety gear in the fall protection structure 16 is the same as the working principle of the "speed governor-safety gear system" in the elevator device.

[0051] For example, the wire rope of the centrifugal speed governor is connected to the support plate 15. When the remote hanging device 1 drives the support plate 15 to rise and fall synchronously, the support plate 15 drives the wire rope to move and drives the rotating part (usually a flywheel) of the centrifugal speed governor to rotate. The rotating part of the centrifugal speed governor is provided with centrifugal blocks.

[0052] The increased descent speed of the long-distance hanging hoist 1 will increase the speed of the wire rope, increase the rotation speed of the rotating parts of the centrifugal speed limiter, and increase the centrifugal force on the centrifugal block.

[0053] When the descent speed of the long-distance hoisting device 1 exceeds the preset speed, the centrifugal block moves due to excessive centrifugal force, causing the centrifugal speed limiter to drive the safety clamp to move through the wire rope.

[0054] For example, the safety clamp includes two wedge-shaped structures. The two wedge-shaped structures are fixed on the support plate 15 and are located on both sides of the second guide rail 14. When the safety clamp is activated, the two wedge-shaped structures clamp the second guide rail 14, causing the support plate 15 to stop moving due to the increased friction between the safety clamp and the second guide rail 14.

[0055] By setting the anti-fall structure 16, the descent speed of the pallet 15 can be detected, and when the descent speed is greater than the preset speed, the safety clamp will be activated so that the pallet 15 stops descending and lifts the remote-connected lifting device 1, thus preventing the heavy objects on the remote-connected lifting device 1 from falling.

[0056] In some embodiments, the guide assembly 3 further includes a slide rail 12, which is slidably disposed on the first guide rail 11, and the length of the slide rail 12 is greater than the length of the connector 13. The connector 13 is fixed on the slide rail 12, and the support plate 15 is connected to the connector 13 through the slide rail 12.

[0057] For example, such as Figure 2 As shown, slide rail 12 is connected to the first guide rail 11 via pulleys.

[0058] For example, there are multiple pulleys. The pulleys are fixed on the slide rail 12, and the wheel surface of the pulley is in contact with the first guide rail 11.

[0059] With the above configuration, the force exerted on the connector 13 by the long-distance hoisting device 1 can be distributed to the first guide rail 11 through the longer slide rail 12. Furthermore, the longer slide rail 12 has stronger guiding capabilities and can better guide the long-distance hoisting device 1 through the connector 13.

[0060] In some embodiments, such as Figure 5As shown, the long-distance lifting device 1 includes a frame 6, a telescopic hook 4, and multiple zippers 5. The frame 6 is used to lift heavy objects. A connector 13 is connected to the frame 6. A portion of a support plate 15 extends directly beneath the frame 6, enabling it to lift the frame 6. The first end of the telescopic hook 4 is fixed to the center of the frame 6, and the second end is connected to a crane. The first ends of the multiple zippers 5 are connected to the second ends of the telescopic hook 4, and the second ends of the multiple zippers 5 are respectively connected to the respective edges of the frame 6.

[0061] For example, the frame 6 is rectangular in shape. There are four zippers 5, and the second ends of the four zippers 5 are connected to the four corners of the frame 6 respectively.

[0062] For example, such as Figure 5 As shown, the top of the telescopic hook 4 is provided with a ring to facilitate connection with the hook of the crane.

[0063] When the telescopic hook 4 is not connected to the crane hook, it will retract due to gravity, and the second end of the retracted hook 4 will automatically fall at the center of the remote lifting device 1. When the telescopic hook 4 is connected to the crane hook and lifting begins, it will extend due to tension. Since the telescopic hook 4 can only extend and retract vertically, it ensures that the second end of the hook 4 remains at the center of the remote lifting device 1. This ensures that the crane hook remains at the center of the remote lifting device 1 during the lifting process, preventing horizontal displacement of the crane hook and thus maintaining the stability of the load lifted by the remote lifting device 1. Multiple zippers 5 can transmit the tension of the crane hook to each edge of the frame 6, ensuring even force distribution across the edges of the frame 6 and further maintaining the stability of the remote lifting device 1.

[0064] In some embodiments, such as Figure 4 and Figure 5 As shown, the connector 13 has a connecting hole facing the long-distance hanging device 1. The long-distance hanging device 1 has a horizontal hook 8 and a horizontal operating disc 10. The horizontal hook 8 can extend into the connecting hole, and the horizontal operating disc 10 is connected to the horizontal hook 8. After the horizontal hook 8 is extended into the connecting hole, rotating the horizontal operating disc 10 can drive the horizontal hook 8 to rotate, thereby realizing the connection and disconnection of the horizontal hook 8 from the connector 13.

[0065] For example, such as Figure 4 and Figure 6 As shown, the connecting hole is a horizontally elongated strip, and the shape of the horizontal hook 8 is the same as that of the connecting hole, but its size is slightly smaller than that of the connecting hole.

[0066] Combination Figure 4 and Figure 6 When it is necessary to hook the horizontal hook 8 with the connector 13, the horizontal hook 8 passes through the connecting hole and rotates the horizontal hook 8 by a first angle (e.g., 90°), so that the positions of the horizontal hook 8 and the connector 13 can be locked in the horizontal direction, thereby achieving the hooking of the horizontal hook 8 with the connector 13. At this time, the horizontal hook 8 can drive the connector 13 to rise and fall.

[0067] Combination Figure 4 and Figure 6 When it is necessary to separate the horizontal hook 8 from the connector 13, the operation can be reversed. First, rotate the horizontal hook 8 back to the first angle so that the horizontal hook 8 is aligned with the connecting hole, and then let the horizontal hook 8 pass through the connecting hole to separate the horizontal hook 8 from the connector 13.

[0068] With the above settings, the horizontal hook 8 and the connector 13 can be engaged and disengaged by rotating the horizontal operating panel 10. Furthermore, the horizontal operating panel 10 is simple to operate, requiring only rotation, and can be controlled remotely via master / slave robotic arms, robotic arms, and powered robotic arms, allowing for remote engagement and disengagement of the horizontal hook 8 and the connector 13.

[0069] In some embodiments, such as Figure 5 and Figure 7 As shown, the long-distance lifting device 1 is also equipped with a vertical hook 7 and a vertical operating panel 9. The vertical hook 7 is located below the long-distance lifting device 1, and the vertical hook 7 and the vertical operating panel 9 are connected by a transmission. Rotating the vertical operating panel 9 can drive the vertical hook 7 to rotate, enabling the vertical hook 7 to be attached to and detached from the load.

[0070] For example, the weight is provided with a horizontal connecting groove, and the vertical hook 7 can be inserted into the connecting groove after being rotated horizontally.

[0071] When the vertical hook 7 needs to be attached to a heavy object, the vertical hook 7 is rotated and inserted into the connecting groove to achieve vertical attachment between the vertical hook 7 and the heavy object. This allows the long-distance attachment lifting device 1 to lift and lower the heavy object through the vertical hook 7.

[0072] When it is necessary to separate the vertical hook 7 from the weight, simply reverse the operation. After the vertical hook 7 is rotated in the opposite direction, the vertical hook 7 will no longer be attached to the weight in the vertical direction, thus separating the vertical hook 7 from the weight.

[0073] With the above setup, the vertical hook 7 can be attached to and detached from the load by rotating the vertical operating panel 9. The vertical operating panel 9 is simple to operate, requiring only rotation, and can be controlled remotely via master / slave robotic arms, robotic arms, and powered robotic arms, allowing for remote control of the attachment and detachment of the vertical hook 7 from the load.

[0074] In some embodiments, such as Figure 1 As shown, there are two guide components 3 and two fall arrestor components 2, and they are set in pairs. The two pairs of guide components 3 and fall arrestor components 2 are set on the same side of the long-distance hanging device 1.

[0075] For example, such as Figure 1 As shown, the long-distance hanging device 1 is long and narrow. Two pairs of guide components 3 and anti-fall components 2 are set on one side of the long side of the long-distance hanging device 1 and are located at both ends of the long side of the long-distance hanging device 1, respectively.

[0076] With the above settings, the two guide components 3 can guide the long-distance hanging device 1, improve the guiding effect of the long-distance hanging device 1, and make the long-distance hanging device 1 bear force evenly; and the two anti-fall components 2 can lift the long-distance hanging device 1, improve the reliability of lifting the long-distance hanging device 1, and make the long-distance hanging device 1 bear force evenly.

[0077] In some embodiments, combined with Figure 2 The slide rail 12 is provided with a telescopic first positioning rod, and the first guide rail 11 is provided with multiple first positioning grooves. The first positioning rod can extend into the first positioning groove to position the slide rail 12 and the first guide rail 11.

[0078] For example, when it is necessary to temporarily fix the slide rail 12 to the first guide rail 11, the first positioning rod can be inserted into a first positioning groove.

[0079] Multiple first positioning slots can enable the slide rail 12 and the first guide rail 11 to be positioned at different locations.

[0080] Furthermore, the first positioning rod is easy to operate and can be operated by remote control devices such as master and slave manipulators, robotic arms, and powered manipulators, enabling remote positioning of the slide rail 12 and the first guide rail 11.

[0081] In some embodiments, combined with Figure 3 and Figure 4 The pallet 15 is provided with a telescopic second positioning rod 17, and the second guide rail 14 is provided with multiple second positioning grooves. The second positioning rod 17 can extend into the second positioning grooves to position the pallet 15 and the second guide rail 14.

[0082] For example, when it is necessary to temporarily fix the tray 15 to the second guide rail 14, the second positioning rod 17 can be inserted into a second positioning groove.

[0083] Multiple second positioning slots can enable the tray 15 and the second guide rail 14 to be positioned at different locations.

[0084] Furthermore, the second positioning rod is easy to operate and can be operated by remote control devices such as master and slave manipulators, robotic arms, and powered manipulators, enabling remote positioning of the pallet 15 and the second guide rail 14.

[0085] Example 2:

[0086] This invention also provides a crane that can be used in various factories to lift heavy objects.

[0087] The crane includes a crane body and the fall arrestor lifting device as described in Embodiment 1. The crane body has a hook capable of being raised and lowered. The hook of the crane body is connected to the remote attachment lifting device 1 of the fall arrestor lifting device, so as to drive the remote attachment lifting device 1 to be raised and lowered via the hook.

[0088] For example, the crane body is a gantry crane commonly used in factories.

[0089] After the crane's hook is connected to the remote attachment 1 of the fall arrestor lifting device, heavy objects can be lifted using the remote attachment 1. Furthermore, the guide component 3 in the fall arrestor lifting device guides the remote attachment 1, and the fall arrestor component 2 in the fall arrestor lifting device supports the remote attachment 1 when its descent speed exceeds a preset speed, preventing the heavy object from falling. Therefore, this improves the stability of the crane when lifting heavy objects, prevents them from falling, and enhances the crane's safety. This makes the crane suitable for special environments requiring stable lifting and prevention of falling objects, such as reprocessing plants in the nuclear chemical industry.

[0090] Example 3:

[0091] This invention also provides a method for lifting radioactive equipment, which is applied in a reprocessing plant in the nuclear chemical industry. The radioactive equipment can be, for example, spent fuel assemblies. The method for lifting the radioactive equipment uses the fall-proof lifting device described in Example 1, and includes steps S100-S300.

[0092] S100. Connect the crane to the long-distance attachment 1 of the fall arrestor lifting device.

[0093] For example, the crane mentioned above is a gantry crane in the reactor building.

[0094] After the crane is connected to the remote attachment 1 of the fall arrestor lifting device, the crane can move the remote attachment 1 up and down.

[0095] S200, the crane lowers the remote attachment lifting device 1 to the radioactive equipment and attaches the remote attachment lifting device 1 to the radioactive equipment.

[0096] S300: The crane lifts the remote attachment lifting device 1 to the target position and separates the remote attachment lifting device 1 from the radioactive equipment.

[0097] Because the guide component 3 in the fall arrestor lifting device can guide the remote-attached lifting device 1, and the fall arrestor component 2 in the fall arrestor lifting device can lift the remote-attached lifting device 1 when the descent speed of the remote-attached lifting device 1 is greater than the preset speed, thus preventing the radioactive equipment from falling, the stability of the radioactive equipment can be maintained during the crane lifting process, and the radioactive equipment can be prevented from falling and being damaged, thereby improving the stability and safety of the radioactive equipment during lifting.

[0098] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A fall arrest hoist device, characterized in that, The application relates to a long-distance hooking lifting device. The long-distance hooking lifting device comprises a long-distance hooking lifting device (1) connected with a crane and used for lifting radioactive equipment, a guide assembly (3) connected with the long-distance hooking lifting device (1) and used for guiding the long-distance hooking lifting device (1) when the long-distance hooking lifting device (1) is lifted, and a falling-prevention assembly (2) connected with the guide assembly (3) and used for being lifted by the guide assembly (3) and being lifted to stop the long-distance hooking lifting device (1) from descending when the descending speed of the long-distance hooking lifting device (1) is greater than a preset speed. The guide assembly (3) comprises a first guide rail (11) fixed on a first reference surface and arranged in a vertical direction, and a connecting piece (13) slidingly arranged on the first guide rail (11) and connected with the long-distance hooking lifting device (1) to be lifted by the long-distance hooking lifting device (1) and to guide the long-distance hooking lifting device (1). The falling-prevention assembly (2) comprises a second guide rail (14) fixed on a second reference surface and arranged in parallel with the first guide rail (11), a supporting plate (15) slidingly arranged on the second guide rail (14), a part of the supporting plate (15) extending into the lower side of the long-distance hooking lifting device (1), the supporting plate (15) being capable of lifting the long-distance hooking lifting device (1), the supporting plate (15) being connected with the connecting piece (13) to be lifted along the second guide rail (14) by the connecting piece (13), and a falling-prevention structure (16) comprising a centrifugal speed limiter and a safety clamp, the centrifugal speed limiter being fixed on the top of the second guide rail (14), a steel wire rope of the centrifugal speed limiter being connected with the supporting plate (15) and the safety clamp respectively to detect the descending speed of the supporting plate (15) through the steel wire rope and to drive the safety clamp to act through the steel wire rope when the descending speed of the supporting plate (15) is greater than a preset speed, the safety clamp being fixed on the supporting plate (15) to clamp the second guide rail (14) and to be self-locked when the safety clamp acts, so that the supporting plate (15) stops descending, the long-distance hooking lifting device (1) is lifted by the supporting plate (15), and the long-distance hooking lifting device (1) stops descending. The guide assembly (3) and the falling-prevention assembly (2) are both provided in two pairs, and the two pairs of the guide assembly (3) and the falling-prevention assembly (2) are arranged on one side of the long edge of the long-distance hooking lifting device (1) and located at two ends of the long edge of the long-distance hooking lifting device (1) respectively. The guide assembly (3) further comprises a sliding rail (12) slidingly arranged on the first guide rail (11), the length of the sliding rail (12) being greater than the length of the connecting piece (13). The connecting piece (13) is fixed on the sliding rail (12), and the supporting plate (15) is connected with the connecting piece (13) through the sliding rail (12). The long-distance hooking lifting device (1) comprises ​ ​ ​ ​ ​ 2. The fall arrest hoist of claim 1, wherein, ​ ​ 3. The fall arrest hoist of claim 1, wherein, ​ Frame (6) for lifting heavy objects; the connecting piece (13) is connected with the frame (6); a part of the supporting plate (15) extends into the frame (6) directly below, which can lift the frame (6); Telescopic hook (4), the first end of the telescopic hook (4) is fixed in the center of the frame (6), the second end is connected with the crane; and, A plurality of zipper (5), the first end of a plurality of the zipper (5) is connected with the second end of the telescopic hook (4), the second end of a plurality of the zipper (5) is connected with each edge of the frame (6) respectively.

4. The fall arrest hoist of claim 3, wherein, The connecting piece (13) is provided with a connecting hole, which is arranged towards the remote hanging device (1); The remote hanging device (1) is provided with a transverse hook (8) and a transverse operation disc (10); the transverse hook (8) can extend into the connecting hole, and the transverse operation disc (10) is in transmission connection with the transverse hook (8); After the transverse hook (8) extends into the connecting hole, rotating the transverse operation disc (10) can drive the transverse hook (8) to rotate, so as to realize the connection and separation of the transverse hook (8) and the connecting piece (13).

5. The fall arrest hoist of claim 3, wherein, The remote hanging device (1) is also provided with a vertical hook (7) and a vertical operation disc (9); The vertical hook (7) is arranged below the remote hanging device (1), and the vertical hook (7) and the vertical operation disc (9) are in transmission connection; rotating the vertical operation disc (9) can drive the vertical hook (7) to rotate, so as to realize the connection and separation of the vertical hook (7) and the heavy object.

6. A crane, characterized in that Comprise: Crane body with a lifting hook that can be lifted; And, The anti-falling lifting device of any one of claims 1-5; The lifting hook of the crane body is connected with the remote hanging device (1) of the anti-falling lifting device, so as to drive the remote hanging device (1) to lift by the lifting hook.

7. A method of hoisting a radioactive device, characterized in that, The lifting method of the radioactive equipment using the anti-falling lifting device of any one of claims 1-5 comprises: Connecting the crane with the remote hanging device (1) of the anti-falling lifting device; The crane drives the remote hanging device (1) to descend to the radioactive equipment, and connects the remote hanging device (1) with the radioactive equipment; The crane drives the remote hanging device (1) to ascend to the target position, and separates the remote hanging device (1) from the radioactive equipment.

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