Nuclear power high-level clamping tool

Abstract

The invention relates to a nuclear power high-level clamping tool which can correspondingly drive a clamping device to move by arranging a screwing device and a telescopic device, so that the clamping device can operate a torque assembly on the water surface to rotate, and underwater high-level objects can be clamped and released. The clamping difficulty is reduced; and the operation convenience of the tool is improved. Furthermore, the fixing device provides installation positions for the supporting device and the screwing device, the fixing device can be further fixed on the hoisting facility, and the relative positions of the supporting device and the parallel connection device are further fixed through the parallel connection device. According to the tool, the rotary screwing rod group can be fixed relative to the supporting rod group through the parallel connection device, so that the position of the telescopic device connected to the rotary screwing rod group in a driving mode is fixed, the underwater stability of the telescopic device and the clamping device is effectively guaranteed, and the clamping stability of the tool is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of nuclear power tools, in particular to a nuclear power high-level clamping tool. Background Art

[0002] With the development of nuclear energy technology, the safe management of highly radioactive components in nuclear reactors has become increasingly important. The loading and unloading of these high-radioactive components in nuclear reactors is a highly specialized operation that requires extremely high precision and safety. In particular, when performing maintenance or replacement of fuel rods or other key components in nuclear power plants, these components need to be removed from the reactor and safely transferred to appropriate storage facilities, or conversely, new or processed components need to be reinstalled inside the reactor.

[0003] However, in the actual operation, a series of technical difficulties were encountered, especially in the high-power component placement operation in deep water environment. Specifically:

[0004] Difficulty in clamping in deep-water environments: When it is necessary to pick up and place high-level components at a greater depth, due to the influence of water pressure, traditional clamping equipment is difficult to achieve stable and reliable clamping, which not only affects the efficiency of the operation, but may also cause damage to the components.

[0005] Limited operating depth range: Existing gripping tool designs are usually only suitable for a specific depth range. Once outside this range, their effectiveness will be significantly reduced or even unable to complete the task. This limits their application range, especially when high-amplitude components need to be frequently moved between different depths.

[0006] Stability deviation during clamping: In an underwater environment, due to the influence of water flow and the weight of the equipment itself, the clamping tool is prone to shaking during operation, resulting in unstable clamping, which in turn affects the clamping accuracy. This is a major challenge for high-precision component operations that require extremely high precision. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a nuclear power high-level clamping tool that can solve the problems of great clamping difficulty, narrow underwater operating depth range and poor clamping stability.

[0008] The present invention provides a nuclear power high-level clamping tool, which comprises:

[0009] A fixing device is provided with a lifting screw hole;

[0010] The supporting device comprises a plurality of supporting rod groups, each of the supporting rod groups is connected end to end along a straight line, and one of the supporting rod groups is arranged on the fixing device;

[0011] The screwing device comprises a torque assembly and a plurality of screwing rod groups, wherein the torque assembly is inserted into and screwed into the lifting screw hole, the torque assembly is connected to each of the screwing rod groups one by one along a straight line, and two adjacent screwing rod groups are connected end to end;

[0012] A parallel device, connected to the supporting device and the screwing device respectively, for fixing the relative position of the supporting device and the screwing device;

[0013] A telescopic device, comprising a plurality of telescopic rod groups, each of which comprises a core rod and a sleeve rod sleeved outside the core rod, one of which is connected to the parallel device, and each of which is connected one by one along a straight line, one of which is drivingly connected to the screw rod group, and each of which is connected one by one along a straight line; and

[0014] The clamping device comprises a seat body, a slider and a clamping claw, wherein the seat body is connected to the sleeve rod, the slider is slidably arranged on the seat body and connected to the core rod, and the clamping claw is movably connected to the seat body and the slider respectively;

[0015] When the torque assembly rotates, each of the core rods is driven to slide inside the sleeve rod through each of the screw rod groups, so that the core rod drives the slider to slide on the seat body, and then the slider drives the clamping claw to move to clamp or release the high-release object.

[0016] Preferably, the fixing device includes a fixing seat and a limiting assembly, the fixing seat is provided with a supporting hole and the lifting screw hole, the limiting assembly includes a limiting ring and a limiting plug-in, the limiting ring is sleeved outside the supporting rod group, the limiting plug-in is inserted into the end of the supporting rod group, the limiting ring and the limiting plug-in are slid and supported on the fixing seat from opposite sides respectively, and the end of the supporting rod group is inserted into the supporting hole.

[0017] Preferably, each of the support rod groups includes a support tube, wherein one of the support tubes is inserted into the fixing device, the support tubes are connected one by one, and the central axes of the support tubes in the length extension direction coincide with each other.

[0018] Preferably, each screw rod assembly comprises a screw barrel, wherein the torque assembly is disposed at the end of one of the screw barrels, and each of the screw barrels is connected end to end along a straight line, and the screw barrels are drivingly connected to the core rod.

[0019] Preferably, the nuclear power high-level clamping tool further comprises an active connection device, the active connection device comprises an active connection piece and an active connection groove, the torque connection piece is provided with a torque head, and the torque head has a limit portion;

[0020] The movable connecting member is inserted into the end of the screw barrel, the torque head is exposed outside the screw barrel, the movable connecting groove is provided at the end of the core rod, the torque head is movably inserted into the core rod, the limiting portion is located in the movable connecting groove, and the limiting portion movably abuts against the groove wall of the movable connecting groove;

[0021] When the screwing barrel rotates, the torque head is driven to rotate in the movable connection groove. When the screwing barrel moves along the length extension direction, the core rod can be driven to move through the torque head.

[0022] Preferably, the movable connection device further comprises an alignment cylinder, wherein the alignment cylinder has a large diameter end and a small diameter end which are connected to each other;

[0023] The small diameter end is inserted between the sleeve rod and the core rod, the sleeve rod is supported on the end surface of the large diameter end, and a fixing bolt is arranged on the sleeve rod, and the fixing bolt passes through the sleeve rod and is inserted into the small diameter end;

[0024] The core rod is inserted in the small diameter end, and the core rod is adapted to the inner side wall of the small diameter end. The screwing cylinder is inserted in the large diameter end, and the screwing cylinder is adapted to the inner side wall of the large diameter end. The torque head and the movable connection groove are both located in the alignment cylinder.

[0025] Preferably, the telescopic device further comprises a core connection assembly, and two adjacent core rods are connected by the core connection assembly;

[0026] Wherein, the core connection assembly includes a mortise and tenon connection structure, a snap connection structure or a plug connection structure.

[0027] Preferably, the clamping device comprises four clamping jaws, each of which is movably connected to the seat body and the slider, and each of the clamping jaws can be retracted or opened under the drive of the slider.

[0028] Preferably, the clamping device also includes a cross mounting piece, the slider is columnar, the slider is slidably penetrated through the center of the seat body, one end of the slider is connected to the core rod, and the other end of the slider is connected to the center of the cross mounting piece, and each of the clamping jaws is movably connected to the cross mounting piece.

[0029] Preferably, the clamping jaw comprises a clamping arm and a supporting arm, the clamping arm is rotatably connected to the base body, one end of the supporting arm is rotatably connected to the cross mounting piece, and the other end of the supporting arm is rotatably connected to the clamping arm.

[0030] The implementation of the present invention has the following beneficial effects:

[0031] The present invention relates to a nuclear power high-level radioactive clamping tool. The nuclear power high-level radioactive clamping tool can drive the clamping device to move accordingly by arranging a screwing device and a telescopic device, so that the clamping device can operate the torque component on the water surface to rotate to clamp and release underwater high-level radioactive objects, thereby reducing the clamping difficulty and improving the operating convenience of the tool.

[0032] Furthermore, the fixing device provides the supporting device and the screwing device with an installation position, the fixing device can be further fixed on the lifting facility, and the relative position of the supporting device and the parallel device can be further fixed through the parallel device, that is, the screwing rod group can be fixed in relative position with the supporting rod group through the parallel device, so that the position of the telescopic device driven and connected to the screwing rod group can be fixed, thereby effectively ensuring the stability of the telescopic device and the clamping device underwater, and greatly improving the clamping stability of the tool.

[0033] In addition, different numbers of screw rod groups and telescopic rod groups can be selected according to the actual operating depth requirements, so that the tool can adapt to different underwater depths to clamp and release high-placed objects, effectively expanding the underwater operating depth range of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0035] Figure 1 It is a schematic diagram of the structure of a nuclear power high-level clamping tool in some embodiments of the present invention;

[0036] Figure 2 is a schematic diagram of a fracture structure of a nuclear power high-level clamping tool in some embodiments of the present invention;

[0037] Figure 3 is another structural schematic diagram of a nuclear power high-level clamping tool in some embodiments of the present invention;

[0038] Figure 4 yes Figure 3 A magnified view at point A;

[0039] Figure 5 yes Figure 3 Enlarged view at B;

[0040] Figure 6 yes Figure 3 Enlarged view at C;

[0041] Figure 7 is an exploded view of a nuclear power high-level clamping tool in some embodiments of the present invention;

[0042] Figure 8 is another exploded view of the nuclear power high-level clamping tool in some embodiments of the present invention. DETAILED DESCRIPTION

[0043] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0044] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0045] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Figures 1 to 3 The invention shows a nuclear power high-level radioactive clamping tool 10 in some embodiments of the present invention. The nuclear power high-level radioactive clamping tool 10 is operated by a worker on the water surface to complete the clamping and release of underwater high-level radioactive objects.

[0048] like Figure 1As shown, the nuclear power high-level clamping tool 10 includes a fixing device 1, a supporting device 2, a screwing device 3, a parallel device 4, a telescopic device 5 and a clamping device 6. The fixing device 1 can be connected to a nuclear power facility that can provide stable support in the nuclear power field, and the supporting device 2 is arranged on the fixing device 1. The screwing device 3 is rotatably arranged on the fixing device 1, the parallel device 4 is respectively connected to the supporting device 2 and the screwing device 3, the telescopic device 5 is connected to the screwing device 3, and the clamping device 6 is drivingly connected to the telescopic device 5.

[0049] It can be understood that the fixing device 1 is used to provide a stable and reliable position support for other devices, mechanisms or components. The supporting device 2 is used to provide stable support in the depth direction of underwater operations, so that the parallel device 4 can respectively support the supporting device 2 and the screwing device 3, so that the screwing device 3 can obtain the support of the supporting device 2 in the depth direction. On the one hand, the telescopic device 5 can obtain the support required for rotation through the parallel device 4, and on the other hand, it can further transmit the torque of the screwing device 3 to the clamping device 6. Of course, the telescopic device 5 is also used to provide the support required for the clamping device 6 to clamp. The clamping device 6 is used to perform a clamping action or a releasing action when torque is input, and specifically performs different actions depending on the direction of the torque input into the clamping device 6 through the telescopic device 5.

[0050] like Figures 1 to 8 As shown, a lifting screw hole 111 is provided on the fixing device 1. The supporting device 2 includes a plurality of supporting rod groups 21, each supporting rod group 21 is connected end to end along a straight line, and one supporting rod group 21 is arranged on the fixing device 1. The screwing device 3 includes a torque assembly 31 and a plurality of screwing rod groups 32, the torque assembly 31 is inserted and screwed into the lifting screw hole 111, the torque assembly 31 is connected one by one with each screwing rod group 32 along a straight line, and two adjacent screwing rod groups 32 are connected end to end. The parallel device 4 is connected to the supporting device 2 and the screwing device 3 respectively, and the parallel device 4 is used to fix the relative position of the supporting device 2 and the screwing device 3. The telescopic device 5 includes a plurality of telescopic rod groups 51, each of which includes a core rod 511 and a sleeve rod 512 sleeved outside the core rod 511, one of which is connected to the parallel device 4, and each sleeve rod 512 is connected one by one along a straight line, one of which is driven to be connected to the screw rod group, and each of which is connected one by one along a straight line. The clamping device 6 includes a seat body 61, a slider 62 and a clamping claw 63, the seat body 61 is connected to the sleeve rod 512, the slider 62 is slidably arranged on the seat body 61 and connected to the core rod 511, and the clamping claw 63 is movably connected to the seat body 61 and the slider 62. When the torque assembly 31 rotates, each of which drives each of the core rods 511 to slide inside the sleeve rod 512 through each of the screw rod groups 32, so that the core rod 511 drives the slider 62 to slide on the seat body 61, and then the slider 62 drives the clamping claw 63 to move to clamp or release the high-release object.

[0051] It can be understood that the fixing device 1 provides a stable basic support for the entire clamping tool 10. The fixing device 1 can be fixed to the nuclear power facility by bolts or other means, and can also be provided with lifting structures such as lifting rings and lifting ears for lifting when needed; the fixing device 1 is provided with a lifting screw hole 111, which is used to cooperate with the screwing device 3 to adjust the overall height of the screwing device 3.

[0052] The support device 2 is used to provide necessary support in the vertical direction to ensure that the clamping tool 10 can remain stable in underwater environments at different depths. The support device 2 is composed of a plurality of support rod groups 21, and each support rod group 21 can be connected by a structure commonly used in the prior art for connecting two pipe bodies or cylinders, such as a threaded sleeve connection or a clamping connection, so that different numbers of support rod groups 21 can be selected according to actual use requirements, and then can be adjusted accordingly according to different underwater operating depths, so as to still provide support in the depth direction at a sufficient depth.

[0053] The screwing device 3 is used as a power source, generates torque by rotating, and drives the clamping device 6 to clamp or release. The torque assembly 31 is connected to the lifting screw hole 111 of the fixing device 1 through threads, and the screwing rod group 32 is connected in sequence, and finally connected to the telescopic device 5. The screwing device 3 can be configured to input torque manually or through a motor.

[0054] The parallel device 4 connects the supporting device 2 and the screwing device 3 to ensure that the relative positions between the two are fixed, and at the same time provides necessary support for the telescopic device 5 .

[0055] The telescopic device 5 is used to convert the torque generated by the screwing device 3 into linear motion, and push the clamping device 6 to complete the clamping or releasing action. The telescopic device 5 is composed of a plurality of telescopic rod groups 51, and each telescopic rod group 51 includes a core rod 511 that can slide freely in a sleeve rod 512. One end of the core rod 511 is connected to the screwing rod group 32, and the other end is connected to the slider 62 of the clamping device 6.

[0056] The clamping device 6 is used to directly contact the high-release object to achieve clamping or release. The seat body 61 is fixed on the sleeve rod 512 at the deepest position in the depth direction. When the core rod 511 moves, the slider 62 slides on the seat body 61, driving the clamping claw 63 to open or close, thereby completing the clamping or releasing action.

[0057] It should be noted that the operation and use method of the nuclear power high-level clamping tool 10 of the present invention includes:

[0058] Install the fixture 1: The fixture 1 is securely mounted on the nuclear power facility to ensure that it is stable and level. The lifting screw hole 111 on the fixture 1 is used to cooperate with the torque assembly 31 of the screwing device 3.

[0059] Determine the operating depth: Use an underwater camera to observe and confirm the operating depth in the high-level container.

[0060] Assembling the rod group: Select the appropriate number of telescopic rod groups 51 according to the working depth. The core rods can be configured to be connected by a mortise and tenon structure, so that when connecting the core rods, the mortise and tenon joints at the ends of the core rods can be directly inserted; of course, the two can also be connected by a clamping or plugging structure in the prior art. The sleeve rods 512 of the telescopic rod group 51 can be connected after the core rods are connected, so as to fix the relative positions of the sleeve rods 512.

[0061] Hoisting the nuclear power high-level radioactive clamping tool 10: Use hoisting equipment to hoist the nuclear power high-level radioactive clamping tool 10 as a whole, and adjust its height so that the clamping device 6 reaches an underwater position aligned with the target high-level radioactive object (such as a high-level radioactive container or other high-level radioactive components).

[0062] Rotating the torque assembly 31: When the clamping device 6 is aligned with the high-placed object, the torque assembly 31 is rotated to generate torque. The torque is transmitted to the telescopic device 5 by screwing the rod assembly 32. The core rod 511 in the telescopic device 5 slides upward (or downward, depending on the design) in the sleeve rod 512, driving the slider 62 to move on the seat body 61. The movement of the slider 62 drives the clamping claw 63 to close, firmly clamping the high-placed object.

[0063] Reverse rotation of torque assembly 31: If you need to release the high-placed object, rotate the torque assembly 31 counterclockwise to slide the core rod 511 downward (or upward, depending on the design) in the sleeve rod 512. The slider 62 then moves backward to open the clamping jaws 63 and release the high-placed object.

[0064] Lifting the clamping tool 10: After clamping or releasing is completed, the clamping tool 10 is lifted as a whole using a lifting device, and the clamping device 6 is moved out of the underwater environment.

[0065] Subsequent processing: Carry out subsequent processing such as storage of high-level radioactive materials to ensure safety.

[0066] like Figure 2 and Figure 3As shown, in some embodiments of the nuclear power high-level clamping tool 10, the fixing device 1 includes a fixing seat 11 and a limiting assembly 12, the fixing seat 11 is provided with a supporting hole 112 and a lifting screw hole 111, the limiting assembly 12 includes a limiting ring 121 and a limiting plug-in 122, the limiting ring 121 is sleeved on the outside of the supporting rod group 21, the limiting plug-in 122 is inserted into the end of the supporting rod group 21, the limiting ring 121 and the limiting plug-in 122 are respectively slidably held on the fixing seat 11 from opposite sides, and the end of the supporting rod group 21 is inserted into the supporting hole 112.

[0067] It can be understood that the fixing seat 11 is used to provide a stable foundation for the entire clamping tool 10 and ensure the correct installation and positioning of each component. The support hole 112 is used to insert the end of the support rod group 21 to ensure the vertical stability of the support rod group 21. The opening direction of the lifting screw hole 111 is the same as the opening direction of the support hole 112, thereby ensuring that the support device 2 can reliably support the screwing device 3.

[0068] The limiting assembly 12 is used to fix and support the support rod set 21 to prevent it from deflecting or falling off during operation, thereby ensuring the stability and reliability of the entire clamping tool 10. The limiting ring 121 is sleeved outside the support rod set 21, and slides against the fixing seat 11 from one side, and the limiting plug 122 slides against the fixing seat 11 from the other side, and cooperates with the limiting ring 121 to ensure that the end of the support rod set 21 is always fixed in the supporting hole 112.

[0069] like Figure 2 and Figure 3 As shown, in some embodiments of the nuclear power high-level clamping tool 10, each support rod group 21 includes a support tube 211, one of the support tubes 211 is inserted into the fixing device 1, and each support tube 211 is connected one by one, and the central axes of each support tube 211 in the length extension direction coincide with each other.

[0070] It can be understood that each support rod group 21 is composed of a support tube 211. The support tube 211 is a hollow cylindrical structure with a hollow interior to prevent the overall weight from being too heavy and to allow the remaining parts to be inserted into the ends for connection. One of the support tubes 211 is inserted into the support hole 112 of the fixing device 1 to ensure its vertical stability. The remaining support tubes 211 are connected in sequence, and the ends of each support tube 211 are connected to another support tube 211 to form a continuous support structure. The central axes of each support tube 211 in the length extension direction coincide with each other, which can ensure that the entire support rod group 21 remains straight in the vertical direction to avoid deviation or bending during operation.

[0071] like Figure 2As shown, in some embodiments of the nuclear power high-level clamping tool 10, each screw rod group 32 includes a screw barrel 321, wherein a torque assembly 31 is provided at the end of one of the screw barrels 321, and each screw barrel 321 is connected end to end along a straight line, and the screw barrel 321 is driven and connected to the core rod 511.

[0072] It can be understood that each screw rod group 32 is composed of a screw barrel 321. The screw barrel 321 is a hollow cylindrical structure with a hollow interior, which is convenient for the insertion and connection of other components. A torque assembly 31 is provided at the end of one of the screw barrels 321, and the torque assembly 31 is threadedly connected in the lifting screw hole 111 of the fixing device 1 to generate and transmit torque. Each screw barrel 321 is connected end to end along a straight line to form a continuous torque transmission path. The end of each screw barrel 321 is connected to the corresponding previous screw barrel 321 to ensure the stability of the connection and the smoothness of the torque transmission.

[0073] In each screwing barrel 321, a driving connection structure is provided on the screwing barrel 321 located at the maximum depth position in the depth direction, and the screwing barrel 321 can be connected to the core rod 511 in the telescopic device 5 through the driving connection structure to ensure that the torque can be effectively transmitted to the core rod 511, driving the core rod 511 to slide along the sleeve rod 512.

[0074] like Figure 4 and Figure 7 As shown, in some embodiments of the nuclear power high-radiation clamping tool 10, the nuclear power high-radiation clamping tool 10 further includes a movable connection device 7, the movable connection device 7 includes a movable connection member 71 and a movable connection groove 72, and a torque head 711 is provided on the torque connection member, and the torque head 711 has a limit portion 712;

[0075] The movable connecting member 71 is inserted into the end of the screw barrel 321, the torque head 711 is exposed outside the screw barrel 321, the movable connecting groove 72 is provided at the end of the core rod 511, the torque head 711 is movably inserted into the core rod 511, the limiting portion 712 is located in the movable connecting groove 72, and the limiting portion 712 movably abuts against the groove wall of the movable connecting groove 72;

[0076] When the screw barrel 321 rotates, the torque head 711 is driven to rotate in the movable connection slot 72 . When the screw barrel 321 moves along the length extension direction, the torque head 711 can drive the core rod 511 to move.

[0077] It can be understood that the movable connection device 7 is used to ensure that the torque generated by the torque assembly 31 can be effectively transmitted to the core rod 511, while allowing the core rod 511 to move linearly when the screw barrel 321 rotates, thereby realizing the clamping and releasing action of the clamping device 6.

[0078] The movable connecting member 71 is inserted into the end of the screw barrel 321 to ensure its stability in the screw barrel 321. The torque head 711 is arranged on the movable connecting member 71, exposed outside the screw barrel 321, and used to transmit torque. A limiting portion 712 is arranged on the torque head 711, and the limiting portion 712 is located in the movable connecting groove 72, and movably abuts against the groove wall of the movable connecting groove 72 to ensure the stability of the torque head 711 in the movable connecting groove 72. The movable connecting groove 72 is arranged at the end of the core rod 511 to accommodate the torque head 711, and ensure that the torque head 711 can rotate in the movable connecting groove 72, but when the torque head 711 rotates, it will only slide against the groove wall of the movable connecting groove 72, and the torque head will not drive the core rod to rotate; only when the torque head 711 moves along the length extension direction of the screw barrel 321, it will drive the core rod to move together by holding the groove wall of the movable connecting groove 72.

[0079] like Figure 4 and Figure 7 As shown, in some embodiments of the nuclear power high-level clamping tool 10, the movable connection device 7 further includes an alignment cylinder 73, and the alignment cylinder 73 has a large diameter end 731 and a small diameter end 732 that are interconnected;

[0080] The small diameter end 732 is inserted between the sleeve rod 512 and the core rod 511, and the sleeve rod 512 is supported on the end surface of the large diameter end 731. The sleeve rod 512 is provided with a fixing bolt 513, and the fixing bolt 513 passes through the sleeve rod 512 and is inserted into the small diameter end 732;

[0081] The core rod 511 is inserted into the small diameter end 732 , and the core rod 511 is adapted to the inner side wall of the small diameter end 732 . The screwing cylinder 321 is inserted into the large diameter end 731 , and the screwing cylinder 321 is adapted to the inner side wall of the large diameter end 731 . The torque head 711 and the movable connection groove 72 are both located in the alignment cylinder 73 .

[0082] It can be understood that the inner side wall of the large diameter end 731 is matched with the screw barrel 321, and the screw barrel 321 is inserted into the large diameter end 731 to ensure the stability of the screw barrel 321. The inner side wall of the small diameter end 732 is matched with the core rod 511, and the core rod 511 is inserted into the small diameter end 732 to ensure the stability of the core rod 511. The sleeve rod 512 is provided with a fixing bolt 513, which passes through the sleeve rod 512 and is inserted into the small diameter end 732 to ensure the fixed connection between the sleeve rod 512 and the alignment cylinder 73.

[0083] like Figure 5 As shown, in some embodiments of the nuclear power high-level clamping tool 10, the telescopic device 5 also includes a core connection assembly 52, and two adjacent core rods 511 are connected by the core connection assembly 52; the core connection assembly 52 is used to ensure stable connection and smooth sliding between the core rods 511.

[0084] The core connection assembly 52 includes at least the following embodiments:

[0085] In the first embodiment, the core connection assembly 52 includes a mortise and tenon connection structure. It can be understood that the ends of two adjacent core rods 511 are provided with a tenon 521 and a mortise 522 that match each other, and the connection is achieved through the mortise and tenon structure.

[0086] In the second embodiment, the core connection assembly 52 includes a buckle connection structure. It can be understood that the ends of two adjacent core rods 511 are provided with buckles and slots that match each other, and the connection is achieved through the buckle structure.

[0087] In a third embodiment, the core connection assembly 52 includes a plug-in connection structure. It can be understood that the ends of two adjacent core rods 511 are provided with plugs and sockets that match each other, and the connection is achieved through the plug-in structure.

[0088] like Figure 2 and Figure 6 As shown, in some embodiments of the nuclear power high-level clamping tool 10 , the clamping device 6 includes four clamping jaws 63 , each of which is movably connected to the base 61 and the slider 62 , and each of the clamping jaws 63 can be retracted or opened under the drive of the slider 62 .

[0089] It can be understood that when the core rod 511 moves upward or downward under the drive of the torque head 711, the slider 62 moves upward or downward along the base body 61, and the connecting rod drives the clamping jaw 63 to rotate around the hinge. Different rotation directions will cause the clamping jaw 63 to move in different directions, so that each clamping jaw 63 is retracted or opened to achieve the clamping or release of high-placed objects.

[0090] like Figure 2 and Figure 6 As shown, in some embodiments of the nuclear power high-level clamping tool 10, the clamping device 6 also includes a cross mounting piece 64, the slider 62 is columnar, the slider 62 is slidably passed through the center of the base body 61, one end of the slider 62 is connected to the core rod 511, and the other end of the slider 62 is connected to the center of the cross mounting piece 64, and each clamping jaw 63 is movably connected to the cross mounting piece 64.

[0091] It can be understood that the cross mounting member 64 is fixed to the other end of the slider 62, providing a mounting base for the clamping jaws 63. The four arms of the cross mounting member 64 are respectively connected to a clamping jaw 63, ensuring uniform distribution and synchronous movement of the clamping jaws 63. The cross mounting member 64 can move under the drive of the slider 62, thereby driving each clamping jaw 63 to move.

[0092] like Figure 2 and Figure 6As shown, in some embodiments of the nuclear power high-level clamping tool 10, the clamping jaw 63 includes a clamping arm 631 and a supporting arm 632, the clamping arm 631 is rotatably connected to the base body 61, one end of the supporting arm 632 is rotatably connected to the cross mounting member 64, and the other end of the supporting arm 632 is rotatably connected to the clamping arm 631.

[0093] It can be understood that the clamping arm 631 is rotatably connected to the base body 61 for directly contacting and clamping the high-placed object. One end of the support arm 632 is rotatably connected to the cross mounting member 64, and the other end is rotatably connected to the clamping arm 631 for transmitting the movement of the slider 62 and driving the clamping arm 631 to close or open.

[0094] Furthermore, if Figure 2 and Figure 3 As shown, in some embodiments, the parallel device 4 includes a first connecting piece 41 and a second connecting piece 42 , the first connecting piece is connected to the second connecting piece, and the first connecting piece and the second connecting piece jointly define a first connecting hole 43 and a second connecting hole 44 .

[0095] It can be understood that the first connecting hole is used for the support cylinder 211 to be inserted and installed, and the second connecting hole is used for the screwing cylinder 321 to be inserted and installed, so that the peripheral side wall of the support cylinder 211 is limited by the hole wall of the first connecting hole, and the peripheral side wall of the screwing cylinder 321 is limited by the hole wall of the second connecting hole, so that the interval between the support cylinder 211 and the screwing cylinder 321 can be effectively limited, ensuring that the support cylinder 211 can fully support the screwing cylinder 321, thereby improving the stability of the screwing cylinder 321 during rotation.

[0096] Furthermore, in some other embodiments, at least one of the first connection hole and the second connection hole can be configured to be defined by only one of the first connection sheet 41 and the second connection sheet 42 , without being surrounded and defined by the two connection sheets.

[0097] Furthermore, in some other embodiments, the number of the parallel devices 4 can be set to be multiple.

[0098] It can be understood that the installation position of each parallel device 4 can be flexibly set and selected, and the first connection hole and the second connection hole of each parallel device 4 can be flexibly set depending on the structure defined.

[0099] For example, see Figure 7 If the parallel device 4 is set on the support tube 211 with the greatest depth, the first connecting hole can be configured to be defined by only one first connecting piece 41. In this way, the first connecting piece 41 can be directly aligned and sleeved on the end of the support tube 211 with the greatest depth during assembly, without the need for cumbersome enclosed and defined installation.

[0100] For example, see Figure 2 If the parallel device 4 is set at other depth positions, it is preferred that the parallel device 4 at the depth position is configured such that the first connection hole and the second connection hole are both defined by the first connection piece and the second connection piece. In this way, when assembling the parallel device 4, it is not necessary to install the connection piece from the end of the support tube 211 or the screw tube 321, thereby improving the installation convenience of the parallel device 4.

[0101] like Figure 8 As shown, the nuclear power high-level clamping tool may also include a plurality of linear connection devices 8 in some embodiments, each of which is used to linearly connect the ends of two tubular elements or two columnar elements, thereby stably and reliably connecting the ends of the two tubular elements, and making the two tubular elements arranged in the same linear direction, thereby making it possible for a plurality of tubular elements to be connected end to end one by one along the same linear direction.

[0102] Specifically, two adjacent support cylinders 211 can be connected in a straight line through the linear connection device 8, two adjacent screw cylinders 321 can be connected in a straight line through the linear connection device 8, and two adjacent sleeve rods 512 can be connected in a straight line through the linear connection device 8.

[0103] Furthermore, between two support tubes 211 that need to be linearly connected, the linear connection device 8 in some embodiments may include a first bite tooth 81, a second bite tooth 82, a fixed nut 83, and a movable nut 84. The first bite tooth 81 and the fixed nut 83 are jointly arranged on one of the support tubes 211, and the second bite tooth 82 and the movable nut 84 are jointly arranged on the other support tube 211; wherein, the fixed nut 83 and the support tube 211 are fixedly connected, and the movable nut 84 is configured to be able to slide along the length extension direction of the support tube 211 and to rotate around the circumferential side wall of the support tube 211.

[0104] It can be understood that after the ends of the two support tubes 211 are aligned and plugged so that the first bite teeth 81 and the second bite teeth 82 are staggered and engaged, the movable nut 84 is slid along the support tube and screwed onto the fixing nut 83, so that the ends of the two support tubes 211 can be fixedly connected. In addition, due to the staggered cooperation of the first bite teeth 81 and the second bite teeth 82, the relative angle of the two support tubes 211 in the circumferential direction can be fixed, and the threaded cooperation can fix the relative position of the ends of the two support tubes 211 to prevent the two support tubes 211 from being separated.

[0105] It should be noted that the technical solution of this type of embodiment can also be applied to the connection between two screw barrels 321, so that each screw barrel 321 can rotate together. The technical solution of this type of embodiment can also be applied to the connection between two sleeve rods 512, so that when one sleeve rod 512 is fixed, each sleeve rod 512 can be fixed at the same time, so that the sleeve rod 512 is not driven by the core rod 511 to rotate.

[0106] The implementation of the present invention has the following beneficial effects:

[0107] The present invention relates to a nuclear power high-level radioactive clamping tool. The nuclear power high-level radioactive clamping tool can drive the clamping device to move accordingly by arranging a screwing device and a telescopic device, so that the clamping device can operate the torque component on the water surface to rotate to clamp and release underwater high-level radioactive objects, thereby reducing the clamping difficulty and improving the operating convenience of the tool.

[0108] Furthermore, the fixing device provides the supporting device and the screwing device with an installation position, the fixing device can be further fixed on the lifting facility, and the relative position of the supporting device and the parallel device can be further fixed through the parallel device, that is, the screwing rod group can be fixed in relative position with the supporting rod group through the parallel device, so that the position of the telescopic device driven and connected to the screwing rod group can be fixed, thereby effectively ensuring the stability of the telescopic device and the clamping device underwater, and greatly improving the clamping stability of the tool.

[0109] In addition, different numbers of screw rod groups and telescopic rod groups can be selected according to the actual operating depth requirements, so that the tool can adapt to different underwater depths to clamp and release high-placed objects, effectively expanding the underwater operating depth range of the tool.

[0110] The scheme of the present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present invention. In addition, it can be understood that the steps in the method of the embodiment of the present invention can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present invention can be merged, divided and deleted according to actual needs.

[0111] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A nuclear power high-level clamping tool, characterized in that: include: A fixing device is provided with a lifting screw hole; The supporting device comprises a plurality of supporting rod groups, each of the supporting rod groups is connected end to end along a straight line, and one of the supporting rod groups is arranged on the fixing device; The screwing device comprises a torque assembly and a plurality of screwing rod groups, wherein the torque assembly is inserted into and screwed into the lifting screw hole, the torque assembly is connected to each of the screwing rod groups one by one along a straight line, and two adjacent screwing rod groups are connected end to end; A parallel device, connected to the supporting device and the screwing device respectively, for fixing the relative position of the supporting device and the screwing device; The telescopic device comprises a plurality of telescopic rod groups, each of which comprises a core rod and a sleeve rod sleeved outside the core rod, one of which is connected to the parallel device, and each of which is connected one by one along a straight line, one of which is drivingly connected to the screw rod group, and each of which is connected one by one along a straight line; and The clamping device comprises a seat body, a slider and a clamping claw, wherein the seat body is connected to the sleeve rod, the slider is slidably arranged on the seat body and connected to the core rod, and the clamping claw is movably connected to the seat body and the slider respectively; When the torque assembly rotates, each of the core rods is driven to slide inside the sleeve rod through each of the screw rod groups, so that the core rod drives the slider to slide on the seat body, and then the slider drives the clamping claw to move to clamp or release the high-release object.

2. The nuclear power high-level clamping tool according to claim 1, characterized in that: The fixing device includes a fixing seat and a limiting assembly, the fixing seat is provided with a supporting hole and the lifting screw hole, the limiting assembly includes a limiting ring and a limiting plug-in, the limiting ring is sleeved outside the supporting rod group, the limiting plug-in is inserted into the end of the supporting rod group, the limiting ring and the limiting plug-in are slidably supported on the fixing seat from opposite sides respectively, and the end of the supporting rod group is inserted into the supporting hole.

3. The nuclear power high-level clamping tool according to claim 1, characterized in that: Each of the support rod groups includes a support tube, one of which is inserted into the fixing device, and each of the support tubes is connected one by one, and the central axes of each of the support tubes in the length extension direction coincide with each other.

4. The nuclear power high-level clamping tool according to claim 3, characterized in that: Each of the screw rod assemblies comprises a screw barrel, wherein the torque assembly is disposed at the end of one of the screw barrels, and each of the screw barrels is connected end to end along a straight line, and the screw barrels are drivingly connected to the core rod.

5. The nuclear power high-level clamping tool according to claim 4, characterized in that: The nuclear power high-release clamping tool further comprises an active connection device, the active connection device comprises an active connection piece and an active connection groove, the torque connection piece is provided with a torque head, and the torque head has a limiting portion; The movable connecting member is inserted into the end of the screw barrel, the torque head is exposed outside the screw barrel, the movable connecting groove is provided at the end of the core rod, the torque head is movably inserted into the core rod, the limiting portion is located in the movable connecting groove, and the limiting portion movably abuts against the groove wall of the movable connecting groove; When the screwing barrel rotates, the torque head is driven to rotate in the movable connection groove. When the screwing barrel moves along the length extension direction, the core rod can be driven to move through the torque head.

6. The nuclear power high-level clamping tool according to claim 5, characterized in that: The movable connection device also includes an alignment cylinder, which has a large diameter end and a small diameter end that are interconnected; The small diameter end is inserted between the sleeve rod and the core rod, the sleeve rod is supported on the end surface of the large diameter end, and a fixing bolt is arranged on the sleeve rod, and the fixing bolt passes through the sleeve rod and is inserted into the small diameter end; The core rod is inserted in the small diameter end, and the core rod is adapted to the inner side wall of the small diameter end. The screwing cylinder is inserted in the large diameter end, and the screwing cylinder is adapted to the inner side wall of the large diameter end. The torque head and the movable connection groove are both located in the alignment cylinder.

7. The nuclear power high-level clamping tool according to claim 1, characterized in that: The telescopic device further comprises a core connection assembly, and two adjacent core rods are connected by the core connection assembly; Wherein, the core connection assembly includes a mortise and tenon connection structure, a snap connection structure or a plug connection structure.

8. The nuclear power high-level clamping tool according to claim 1, characterized in that: The clamping device includes four clamping jaws, each of which is movably connected to the seat body and the slider, and each of the clamping jaws can be retracted or opened under the drive of the slider.

9. The nuclear power high-level clamping tool according to claim 8, characterized in that: The clamping device also includes a cross mounting piece, the slider is columnar, the slider is slidably penetrated through the center of the seat body, one end of the slider is connected to the core rod, and the other end of the slider is connected to the center of the cross mounting piece, and each of the clamping jaws is movably connected to the cross mounting piece.

10. The nuclear power high-level clamping tool according to claim 9, characterized in that: The clamping claw comprises a clamping arm and a supporting arm. The clamping arm is rotatably connected to the seat body. One end of the supporting arm is rotatably connected to the cross mounting piece, and the other end of the supporting arm is rotatably connected to the clamping arm.

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