Refueling machine clamping jaw disassembly maintenance device

Abstract

The invention discloses a clamping jaw disassembly maintenance device for a refueling machine. The clamping jaw disassembly maintenance device comprises a main frame body mechanism, a lifting mechanism, an overturning clamping mechanism and a bearing mechanism. According to the disassembly and maintenance device for the clamping jaw of the refueling machine, the overturning clamping mechanism is arranged to clamp the clamping jaw of the refueling machine, and the lifting mechanism is arranged to drive the overturning clamping mechanism and the clamping jaw of the refueling machine to ascend and descend, so that the clamping jaw of the refueling machine can be conveniently disassembled by a maintainer in the vertical direction; and the clamping jaw of the refueling machine is overturned through the overturning clamping mechanism, so that the clamping jaw of the refueling machine can be conveniently transferred to the bearing mechanism, and the clamping jaw of the refueling machine can be conveniently disassembled by a maintainer in the horizontal direction. According to the disassembly and maintenance device for the clamping jaw of the refueling machine, lifting and overturning of the clamping jaw of the refueling machine can be easily achieved, the convenience of disassembling related parts of the clamping jaw of the refueling machine is improved, the working intensity of maintainers is greatly relieved, and the irradiation dose of the maintainers is further reduced.

Description

Technical Field

[0001] The invention relates to the field of maintenance of clamping jaws of a nuclear power station refueling machine, and in particular to a disassembly and maintenance device for the clamping jaws of a refueling machine. Background Art

[0002] The refueling machine jaws are the core actuators that directly contact the nuclear fuel rods during the loading and unloading of nuclear fuel in nuclear power plants. The equipment has a complex structure. In the early stage, the jaws were disassembled and inspected with the support of foreign personnel, which was time-consuming and labor-intensive. Therefore, it is of great significance to develop a dedicated maintenance platform for the maintenance of the refueling machine jaws. The refueling machine jaws are important equipment, and there is currently a lack of a dedicated maintenance device for the refueling machine jaws. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a disassembly and maintenance device for the clamping jaws of a material changer.

[0004] The technical solution adopted by the present invention to solve the technical problem is: construct a disassembly and maintenance device for the clamping jaws of a material changer, which includes a main frame mechanism, a lifting mechanism, a flip clamping mechanism and a bearing mechanism;

[0005] The lifting mechanism is connected to the main frame mechanism, the flip clamping mechanism is connected to the lifting mechanism, the flip clamping mechanism is used to clamp the material changer clamping claw and flip the material changer clamping claw, and the lifting mechanism is used to drive the flip clamping mechanism to perform lifting and lowering movements;

[0006] The carrying mechanism is connected to the main frame mechanism, and the number of the carrying mechanisms is at least two, and at least two of the carrying mechanisms are used together to carry the material changer clamping claw after being flipped by the flipping clamping mechanism.

[0007] In some embodiments, the main frame structure includes a support frame, a support plate fixedly connected to the support frame, a plurality of universal wheels installed under the support frame, and a plurality of foot seats installed under the support frame, and the universal wheels are separately arranged from the foot seats.

[0008] In some embodiments, the lifting mechanism includes a lifting mounting base fixedly connected to the support frame, a lifting drive installed on the lifting mounting base, a lifting screw connected to the output end of the lifting drive, and a lifting connecting frame transmission connected to the lifting screw.

[0009] In some embodiments, the lifting mechanism further includes a lifting hand wheel connected to the lifting drive, a lifting limit switch mounted on the support frame, and a plurality of lifting guide rods;

[0010] Two ends of each lifting guide rod are respectively connected to the lifting installation base and the lifting connection frame.

[0011] In some embodiments, the flip clamping mechanism includes a flip mounting seat fixedly connected to the lifting connection frame, a flip driver installed on the flip mounting seat, a flip connection mechanism connected to the output end of the flip driver, and a flip connection plate fixedly connected to the flip connection mechanism;

[0012] The flip connection plate is provided with a plurality of connection positioning holes corresponding to the lower end portions of the material changer clamps.

[0013] In some embodiments, the flip clamping mechanism further includes a mounting rod fixedly connected to the flip connecting plate and a clamping block movably connected to the mounting rod, wherein the clamping block is used to clamp the material changer clamp.

[0014] In some embodiments, the main frame mechanism further includes a support rail fixedly connected to the support plate and a support slider movably connected to the support rail;

[0015] The bearing mechanism includes a bearing mounting seat fixedly connected to the supporting slider, a bearing screw mounted on the bearing mounting seat, a receiving slider transmission connected to the bearing screw, a bearing pad fixedly connected to the receiving slider, and a bearing driving member connected to the bearing screw.

[0016] In some embodiments, the number of the receiving sliding block and the number of the bearing pad block are both two, and the two bearing pad blocks are used together to support the material changer clamp after being flipped by the flip clamping mechanism.

[0017] In some embodiments, the bearing mechanism further comprises a bearing locking plate fixedly connected to the bearing mounting seat and a bearing locking handle mounted on the bearing locking plate;

[0018] The load-bearing locking handle is used to lock the relative position between the load-bearing locking plate and the support frame.

[0019] In some embodiments, an electrical control box is provided in the support frame.

[0020] The implementation of the present invention has the following beneficial effects: the disassembly and maintenance device for the clamping jaws of the refueling machine can clamp the clamping jaws of the refueling machine by setting a flip clamping mechanism, and by setting a lifting mechanism to drive the flip clamping mechanism and the clamping jaws of the refueling machine to lift and lower, so that the clamping jaws of the refueling machine can be conveniently disassembled by maintenance personnel in the vertical direction, and the clamping jaws of the refueling machine can be flipped by the flip clamping mechanism, so that the clamping jaws of the refueling machine can be conveniently transferred to the bearing mechanism, so that the clamping jaws of the refueling machine can be conveniently disassembled by maintenance personnel in the horizontal direction. The disassembly and maintenance device for the clamping jaws of the refueling machine can easily realize the lifting and flipping of the clamping jaws of the refueling machine, improve the convenience of disassembling the parts related to the clamping jaws of the refueling machine, greatly reduce the work intensity of maintenance personnel, and also reduce the radiation dose of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of a clamping jaw disassembly and maintenance device for a material changer in some embodiments of the present invention;

[0023] Figure 2 is a schematic structural diagram of a lifting mechanism and a flip clamping mechanism in some embodiments of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the supporting mechanism in some embodiments of the present invention. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0026] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] See also Figures 1 to 3 , is a disassembly and maintenance device for the clamping jaws of a material changer in some embodiments of the present invention, which includes a main frame mechanism 1, a lifting mechanism 2, a flip clamping mechanism 3 and a bearing mechanism 4. The lifting mechanism 2 is connected to the main frame mechanism 1, the flip clamping mechanism 3 is connected to the lifting mechanism 2, the flip clamping mechanism 3 is used to clamp the clamping jaws 5 of the material changer and flip the clamping jaws 5 of the material changer, the lifting mechanism 2 is used to drive the flip clamping mechanism 3 to perform lifting and lowering movements, the bearing mechanism 4 is connected to the main frame mechanism 1, the number of the bearing mechanisms 4 is at least two, and at least two bearing mechanisms 4 are used together to carry the clamping jaws 5 of the material changer after being flipped by the flip clamping mechanism 3.

[0028] It can be understood that the disassembly and maintenance device for the clamping jaws of the refueling machine can clamp the clamping jaws 5 of the refueling machine by setting the flip clamping mechanism 3, and by setting the lifting mechanism 2 to drive the flip clamping mechanism 3 and the clamping jaws of the refueling machine to lift and lower, so that the clamping jaws of the refueling machine 5 can be conveniently disassembled by maintenance personnel in the vertical direction, and the clamping jaws of the refueling machine 5 can be flipped by the flip clamping mechanism 3, so that the clamping jaws of the refueling machine 5 can be conveniently transferred to the bearing mechanism 4, so that the clamping jaws of the refueling machine 5 can be conveniently disassembled by maintenance personnel in the horizontal direction. The disassembly and maintenance device for the clamping jaws of the refueling machine can easily realize the lifting and flipping of the clamping jaws of the refueling machine 5, improve the convenience of disassembling the related parts of the clamping jaws of the refueling machine 5, greatly reduce the work intensity of maintenance personnel, and also reduce the radiation dose of maintenance personnel.

[0029] like Figure 1As shown, the main frame mechanism 1 includes a support frame 11, a support plate 12 fixedly connected to the support frame 11, a plurality of universal wheels 13 installed below the support frame 11, and a plurality of foot seats 14 installed below the support frame 11, and the universal wheels 13 and the foot seats 14 are separately arranged. The support frame 11 is mainly formed by connecting a plurality of aluminum profiles, and the support plate 12 can be fixedly connected to the support frame 11 by bolts, and the number of the universal wheels 13 and the foot seats 14 are preferably four, and the universal wheels 13 can facilitate the transportation and movement of the support frame 11, and the foot seats 14 can be installed next to the universal wheels 13. When the support frame 11 is moved to a specified position, the foot seats 14 can be adjusted to make them contact with the ground, thereby enhancing the stability of the support frame 11.

[0030] Furthermore, an electric control box 15 is provided in the support frame 11 for supplying power to and controlling the electric components of the material changer jaw disassembly and maintenance device.

[0031] like Figure 1 and Figure 2 As shown, the lifting mechanism 2 includes a lifting installation base 21 fixedly connected to the support frame 11, a lifting driver 22 installed on the lifting installation base 21, a lifting screw 23 connected to the output end of the lifting driver 22, and a lifting connection frame 24 drivingly connected to the lifting screw 23. It can be understood that the lifting driver 22 can be a lifting motor, and the lifting driver 22 can use a worm gear mechanism to drive the lifting screw 23 to control the lifting of the lifting connection frame 24.

[0032] The lifting mechanism 2 also includes a lifting hand wheel 25 connected to the lifting driver 22, a lifting limit switch 26 installed on the support frame 11, and a plurality of lifting guide rods 27, and the two ends of each lifting guide rod 27 are respectively connected to the lifting installation base 21 and the lifting connection frame 24. The lifting hand wheel 25 can be used in the event of a power outage, and the lifting connection frame 24 can be manually lifted by shaking the lifting hand wheel 25. There are four lifting guide rods 27, and the four lifting guide rods 27 can be connected to the lifting installation base 21 and the lifting connection frame 24 through linear bearings to provide a guiding function for the lifting connection frame 24 and ensure the movement balance of the lifting connection frame 24. The lifting limit switch 26 is used to control the position of the lower limit of the lifting mechanism 2.

[0033] like Figure 2As shown, the flip clamping mechanism 3 includes a flip mounting seat 31 fixedly connected to the lifting connection frame 24, a flip driver 32 installed on the flip mounting seat 31, a flip connection mechanism 33 connected to the output end of the flip driver 32, and a flip connection plate 34 fixedly connected to the flip connection mechanism 33, and a plurality of connection positioning holes 341 corresponding to the lower end of the material changer clamp 5 are opened on the flip connection plate 34. It can be understood that the flip mounting seat 31 can be fixedly connected to the lifting connection frame 24 by bolts, the flip driver 32 can be a thin disk motor, the flip driver 32 is used to drive the flip connection plate 34 to flip through the flip connection mechanism 33, and the connection positioning hole 341 can be used to realize the positioning of the material changer clamp 5.

[0034] Furthermore, the flip clamping mechanism 3 also includes a mounting rod 35 fixedly connected to the flip connecting plate 34 and a clamping block 36 movably connected to the mounting rod 35, and the clamping block 36 is used to clamp the material changer clamp 5. The clamping block 36 can move up and down along the height direction of the mounting rod 35 to match the clamping height of the material changer clamp 5. When the clamping block 36 is adjusted to an appropriate height, the relative position between the clamping block 36 and the mounting rod 35 can be locked by a locking nut. The clamping block 36 is specifically used for clamping the material changer clamp 5 during the flipping process.

[0035] like Figure 1 and Figure 3 As shown, the main frame mechanism 1 also includes a support rail 16 fixedly connected to the support plate 12 and a support slider 17 movably connected to the support rail 16, and the bearing mechanism 4 includes a bearing mounting seat 41 fixedly connected to the support slider 17, a bearing screw 42 mounted on the bearing mounting seat 41, a receiving slider 43 transmission-connected to the bearing screw 42, a bearing pad 44 fixedly connected to the receiving slider 43, and a bearing drive member 45 connected to the bearing screw 42. Among them, the number of the receiving slider 43 and the bearing pad 44 is two, and the two bearing pads 44 are used together to carry the material changer clamp 5 after the flipping clamping mechanism 3 is flipped. The bearing drive member 45 can be a manual crank or a drive motor. In this embodiment, the bearing drive member 45 is a manual crank, and the two bearing pads 44 can be moved closer or farther by shaking the bearing drive member 45 to adapt to the shape of the material changer clamp 5. The bearing pad 44 can be made of polyurethane material and will not cause damage to the material changer clamp 5. In addition, the provision of the support rail 16 allows the bearing mechanism 4 to freely adjust its position in the length direction of the support plate 12 .

[0036] The bearing mechanism 4 further includes a bearing locking plate 46 fixedly connected to the bearing mounting seat 41 and a bearing locking handle 47 mounted on the bearing locking plate 46, and the bearing locking handle 47 is used to lock the relative position between the bearing locking plate 46 and the support frame 11. More specifically, a portion of the bearing locking handle 47 can be threadedly connected to the bearing locking plate 46, and since the aluminum profile of the support frame 11 has a corresponding mounting groove, when the bearing mounting seat 41 moves to a corresponding position on the support slide rail 16, the bearing locking handle 47 can be rotated so that a portion of the bearing locking handle 47 extends into the corresponding mounting groove on the aluminum profile of the support frame 11 to lock the relative position between the bearing locking plate 46 and the support frame 11.

[0037] The specific use method of the material changer jaw disassembly and maintenance device is as follows:

[0038] 1. Use a crane to hoist the material changer clamp 5 onto the flip connection plate 34. At this time, the flip connection plate 34 is in a horizontal position relative to the support plate 12. Use the connection positioning hole 341 on the flip connection plate 34 to connect with the lower end of the material changer clamp 5. Then use the lifting mechanism 2 to drive the flip connection plate 34 to perform lifting and lowering movements, so that the flip connection plate 34 is at the lower limit position in the height direction of the support plate 12, so that the spatial position of the material changer clamp 5 is relatively low, and the maintenance personnel can easily disassemble the upper corresponding components of the material changer clamp 5;

[0039] 2. After the disassembly of the corresponding upper components of the material changer clamp 5 is completed, the clamping block 36 is used to clamp the material changer clamp 5, and the lifting drive 22 is controlled to move the flip connection plate 34 to an appropriate position, and then the flip drive 32 is used to flip the material changer clamp 5 to a horizontal position. At this time, the flip connection plate 34 is in a vertical position relative to the support plate 12. During the flipping process, the flip drive 32 can be controlled to stop, and the relative positions of the two bearing mechanisms 4 and the two bearing pads 44 can be adjusted, so that the material changer clamp 5 can be stably and reliably placed on the two bearing pads 44;

[0040] 3. Release the clamping block 36 and push the supporting mechanism 4 horizontally away from the flip connecting plate 34 to separate the material changer clamp 5 from the flip connecting plate 34. Then use the flip driver 32 to flip the material changer clamp 5 back to the horizontal position, control the lifting driver 22 to lower the flip connecting plate 34 back to the lower limit position, and continue the disassembly process of the next material changer clamp 5.

[0041] It can be understood that the above embodiments only express the preferred implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, all equivalent changes and modifications made to the scope of the claims of the present invention should belong to the scope covered by the claims of the present invention.

Claims

1. A disassembly and maintenance device for the clamping jaws of a material changer, characterized in that: It comprises a main frame mechanism (1), a lifting mechanism (2), a flipping and clamping mechanism (3) and a bearing mechanism (4); The lifting mechanism (2) is connected to the main frame mechanism (1), the flip clamping mechanism (3) is connected to the lifting mechanism (2), the flip clamping mechanism (3) is used to clamp the material changer clamping claw (5) and flip the material changer clamping claw (5), and the lifting mechanism (2) is used to drive the flip clamping mechanism (3) to perform lifting and lowering movements; The supporting mechanism (4) is connected to the main frame mechanism (1), the number of the supporting mechanisms (4) is at least two, and at least two of the supporting mechanisms (4) are used together to support the material changer clamp (5) after being flipped by the flip clamping mechanism (3).

2. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 1 is characterized in that: The main frame mechanism (1) comprises a support frame (11), a support plate (12) fixedly connected to the support frame (11), a plurality of universal wheels (13) installed below the support frame (11), and a plurality of foot seats (14) installed below the support frame (11), wherein the universal wheels (13) and the foot seats (14) are arranged separately.

3. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 2 is characterized in that: The lifting mechanism (2) comprises a lifting installation base (21) fixedly connected to the support frame (11), a lifting drive (22) installed on the lifting installation base (21), a lifting screw rod (23) connected to the output end of the lifting drive (22), and a lifting connection frame (24) drivingly connected to the lifting screw rod (23).

4. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 3 is characterized in that: The lifting mechanism (2) further comprises a lifting hand wheel (25) connected to the lifting drive (22), a lifting limit switch (26) installed on the support frame (11), and a plurality of lifting guide rods (27); Two ends of each lifting guide rod (27) are respectively connected to the lifting installation base (21) and the lifting connection frame (24).

5. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 4 is characterized in that: The flip clamping mechanism (3) comprises a flip mounting seat (31) fixedly connected to the lifting connection frame (24), a flip driver (32) installed on the flip mounting seat (31), a flip connection mechanism (33) connected to the output end of the flip driver (32), and a flip connection plate (34) fixedly connected to the flip connection mechanism (33); The flip connection plate (34) is provided with a plurality of connection positioning holes (341) corresponding to the lower end portions of the material changer clamping jaws (5).

6. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 5, characterized in that: The flip clamping mechanism (3) also includes a mounting rod (35) fixedly connected to the flip connecting plate (34) and a clamping block (36) movably connected to the mounting rod (35), wherein the clamping block (36) is used to clamp the material changer clamp (5).

7. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 2, characterized in that: The main frame mechanism (1) further comprises a support slide rail (16) fixedly connected to the support plate (12) and a support slider (17) movably connected to the support slide rail (16); The bearing mechanism (4) comprises a bearing mounting seat (41) fixedly connected to the supporting slider (17), a bearing screw (42) mounted on the bearing mounting seat (41), a receiving slider (43) transmission-connected to the bearing screw (42), a bearing cushion block (44) fixedly connected to the receiving slider (43), and a bearing driving member (45) connected to the bearing screw (42).

8. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 7, characterized in that: The number of the receiving slide block (43) and the number of the bearing pad block (44) are both two, and the two bearing pad blocks (44) are used together to bear the material changer clamping claw (5) after being turned over by the turning clamping mechanism (3).

9. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 7, characterized in that: The bearing mechanism (4) further comprises a bearing locking plate (46) fixedly connected to the bearing mounting seat (41) and a bearing locking handle (47) mounted on the bearing locking plate (46); The load-bearing locking handle (47) is used to lock the relative position between the load-bearing locking plate (46) and the support frame (11).

10. The disassembly and maintenance device for the clamping jaws of a material changer according to claim 2, characterized in that: An electric control box (15) is arranged inside the support frame (11).

Images