Quick dismounting and mounting device for cable connector of in-core instrument sleeve assembly

Abstract

The invention provides a quick dismounting and mounting device for a cable connector of a reactor core instrument sleeve assembly, the quick dismounting and mounting device for the cable connector of the reactor core instrument sleeve assembly comprises an adjustable handle, a torque device and a clamping device, and the torque device and the clamping device are respectively fixed at two ends of the adjustable handle. The clamping device and the torque device face the same direction. The adjustable handle is used for adjusting the distance between the torque device and the clamping device. The torque device is used for applying torque to the cable connector. And the clamping device is used for clamping and fixing the in-core instrument sleeve assembly. According to the cable connector quick dismounting and mounting device provided with the in-core instrument sleeve assembly, the two functions of quick clamping and quick torque applying are integrated, and the problem that a corrugated pipe below a connector is prone to being bent or fractured during dismounting and mounting of an existing cable connector is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of cable connectors for nuclear power plants, and in particular relates to a quick disassembly and assembly device for a cable connector of a core instrument casing assembly. Background Art

[0002] During each overhaul, nuclear power plants need to terminate and unterminate the top cable connector of the core instrument casing assembly. After the cable connector is terminated, sufficient torque needs to be applied to fix it. However, since the cable connector does not have a fixing groove and there are no special tools, it is very easy to cause the corrugated tube under the joint to bend or break when torque is applied. Summary of the invention

[0003] In view of this, an embodiment of the present application is committed to providing a quick disassembly and assembly device for the cable connector of the core instrument casing assembly. By setting up a quick disassembly and assembly device for the cable connector of the core instrument casing assembly, the two functions of quick clamping and quick application of torque are integrated into one, so as to solve the problem that the disassembly of the existing cable connector easily causes the bellows under the joint to bend or break.

[0004] The present application provides a quick disassembly and assembly device for a cable connector of a core instrument casing assembly, the quick disassembly and assembly device for the cable connector of the core instrument casing assembly comprises an adjustable handle, a torque device and a clamping device, the torque device and the clamping device are respectively fixed at both ends of the adjustable handle, and the clamping device and the torque device have the same orientation. The adjustable handle is used to adjust the distance between the torque device and the clamping device. The torque device is used to apply torque to the cable connector. The clamping device is used to clamp and fix the core instrument casing assembly.

[0005] In a specific embodiment of the present application, the adjustable handle includes a fixed column, a rotating handle and a movable column. The rotating handle and the movable column are matched through threads. The rotating handle is used to control the movement of the movable column when twisting to change the length of the adjustable handle.

[0006] In a specific embodiment of the present application, there is a slot fit between the rotating handle and the fixed column, and there is a slot fit between the fixed column and the movable column.

[0007] In a specific embodiment of the present application, the torque device includes a torque device frame, an open gear, a latch, a transmission gear, a power gear, a power interface and a torque handle. The torque device frame and the open gear are adapted to the opening of the nut of the cable connector of the core instrument casing assembly. The latch is fixed on the open gear and adapted to the hole on the nut of the cable connector to drive the nut of the cable connector to rotate when the open gear rotates. The open gear is connected to the power gear through the transmission gear, and the power gear is used to rotate through the transmission gear to make the open gear rotate. The torque handle is connected to the power gear through the power interface.

[0008] In a specific embodiment of the present application, the open gear and the transmission gear are in a one-way fit similar to a ratchet.

[0009] In a specific embodiment of the present application, the transmission gear has two rows.

[0010] In a specific embodiment of the present application, the power interface adopts an adjustable ratchet structure, and the torque handle adopts an adjustable torque wrench structure.

[0011] In a specific embodiment of the present application, a structure for adjusting the maximum torque is provided on the end of the torque handle.

[0012] In a specific embodiment of the present application, the clamping device includes a clamping device frame, a fixed clamping block, a movable clamping block, a push rod, a connection block, a handle connection block, a handle and a plurality of fixing nails. The clamping device frame is connected to the fixed clamping block. The handle is connected to the handle connection block. The clamping device frame and the handle connection block, the handle connection block and the connection block, and the connection block and the push rod are all connected and fixed by fixing nails, and a certain rotation is generated between them. The handle is used to control the movement of the movable clamping block through the handle connection block, the connection block, and the push rod during movement, so as to change the spacing between the movable clamping block and the fixed clamping block.

[0013] In a specific embodiment of the present application, the fixed clamp block and the movable clamp block are made of hard material, and the circular grooves on the fixed clamp block and the movable clamp block are tightly matched with the core instrument casing assembly.

[0014] The beneficial effect of the technical solution of the present application is that the adjustable handle in the quick disassembly device of the cable connector of the core instrument casing assembly can be used to quickly adjust the spacing between the clamping device and the torque device according to actual conditions, the clamping device is used to clamp and fix the core instrument casing assembly to avoid rotation when applying torque, and the torque device is used to apply torque to the cable connector. At the same time, after the core casing assembly is fixed, the cable connector can be quickly applied with torque to achieve termination and de-termination, so that the quick disassembly device of the cable connector of the core instrument casing assembly realizes the integration of the two functions of quick clamping and quick application of torque. In addition, all structures of the present application are purely mechanical structures and can work normally in an environment with high radiation doses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic structural diagram of a quick disassembly and assembly device for a cable connector of a core instrument casing assembly provided in one embodiment of the present application.

[0016] Figure 2 Shown Figure 1A schematic structural diagram of an adjustable handle in a quick disassembly and assembly device for a cable connector of a core instrument casing assembly is shown.

[0017] Figure 3 Shown Figure 1 A schematic diagram of the structure inside a torque device in a quick disassembly and assembly device for a cable connector of a core instrument casing assembly is shown.

[0018] Figure 4 Shown Figure 1 The diagram shown is a transmission diagram of a torque device in a quick disassembly and assembly device for a cable connector of a core instrument casing assembly.

[0019] Figure 5 Shown Figure 3 Schematic diagram of the torque handle in the torque device shown.

[0020] Figure 6 Shown Figure 1 The structure schematic diagram of the clamping device in the quick disassembly and assembly device of the cable connector of the core instrument casing assembly is shown.

[0021] Figure 7 Shown Figure 6 Functional schematic diagram of the clamping device shown. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] At least one embodiment of the present application provides a quick disassembly and assembly device for a cable connector of a core instrument casing assembly, which is mainly used to quickly fix the cable of the core instrument casing assembly after the cable connector is docked. Figure 1 As shown, the quick disassembly and assembly device of the cable connector of the core instrument casing assembly includes an adjustable handle 1, a torque device 2 and a clamping device 3. The torque device 2 and the clamping device 3 are respectively fixed at both ends of the adjustable handle 1, and the clamping device 3 and the torque device 2 have the same orientation. The adjustable handle 1 is used to adjust the distance between the torque device 2 and the clamping device 3. The torque device 2 is used to apply torque to the cable connector. The clamping device 3 is used to clamp and fix the core instrument casing assembly.

[0024] It should be noted that the core instrument casing assembly is a detector.

[0025] According to the technical solution provided in the embodiment of the present application, by utilizing the adjustable handle 1 in the quick disassembly and assembly device of the cable connector of the core instrument casing assembly, the spacing between the clamping device 3 and the torque device 2 can be quickly adjusted according to actual conditions, the clamping device 3 is used to clamp and fix the core instrument casing assembly to avoid rotation when torque is applied, and the torque device 2 is used to apply torque to the cable connector. At the same time, after the core casing assembly is fixed, torque can be quickly applied to the cable connector to achieve termination and de-termination, so that the quick disassembly and assembly device of the cable connector of the core instrument casing assembly integrates the two functions of quick clamping and quick application of torque.

[0026] In addition, when the existing cable connector is disassembled, the operating area at the top of the pile has a very high radiation dose, and the maintenance personnel need to spend as little time as possible operating at the top of the pile. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly provided by the embodiment of the present application can work normally in an environment with a high radiation dose because all structures of the present application are purely mechanical structures.

[0027] In at least one embodiment of the present application, Figure 1 and Figure 2 As shown, the adjustable handle 1 includes a fixed column 101, a rotating handle 102 and a movable column 103. The rotating handle 102 is matched with the movable column 103 through a thread. The rotating handle 102 is used to control the movement of the movable column 103 when twisting to change the length of the adjustable handle 1. In this way, by setting the adjustable handle 1, the length of the adjustable handle can be adjusted by rotating the rotating handle 102, so that the spacing between the clamping device and the torque device can be quickly adjusted according to actual conditions.

[0028] In at least one embodiment of the present application, there is a slot fit between the rotating handle 102 and the fixed column 101, and there is a slot fit between the fixed column 101 and the movable column 103. In this way, by setting the slot fit between the rotating handle 102 and the fixed column 101, the rotating handle 102 can be rotated freely without being separated from the fixed column 101, so that when the rotating handle 102 is rotated, the movable column 103 moves relative to the fixed column 101, thereby changing the length of the adjustable handle 1. By setting the slot fit between the fixed column 101 and the movable column 103, relative rotation between the two can be avoided, thereby ensuring that the directions of the torque device 2 and the clamping device 3 are always consistent during the process of adjusting the length.

[0029] In at least one embodiment of the present application, Figure 3As shown, the torque device 2 includes a torque device frame 201, an open gear 202, a latch 203, a transmission gear 204, a power gear 205, a power interface 206 and a torque handle 207. The torque device frame 201 and the open gear 202 are adapted to the opening of the nut of the cable connector of the core instrument casing assembly. The latch 203 is fixed on the open gear 202 and adapted to the hole on the nut of the cable connector to drive the nut of the cable connector to rotate when the open gear 202 rotates. The open gear 202 is connected to the power gear 205 through the transmission gear 204, and the power gear 205 is used to rotate through the transmission gear 204 to drive the open gear 202 to rotate. The torque handle 207 is connected to the power gear 205 through the power interface 206. In this way, by setting the opening of the nut of the cable connector of the core instrument casing assembly on the torque device frame 201 and the open gear 202, placing the nut of the cable connector in the opening, and matching the hole on the nut with the pin 203, the nut of the cable connector can be matched with the torque device 2, so that the nut of the cable connector can be quickly matched with the open gear 202 and the pin 203, that is, the quick matching of the cable connector of the core instrument casing assembly is achieved. In addition, by setting the torque handle 207 to be connected with the power gear 205 through the power interface 206, it is achieved that the power gear 205 can be rotated by applying force to the torque handle 207, and when the open gear 202 rotates, it can drive the rotation of the nut of the cable connector, and then through the torque transmission of the transmission gear 204 and the power gear 205 and the power interface 206, it is achieved that after the matching is completed, the torque is quickly applied to the cable connector through the torque handle 207, and the cable connector is quickly fixed.

[0030] In at least one embodiment of the present application, the open gear 202 and the transmission gear 204 are one-way matched similar to a ratchet, that is, the open gear 202 can receive the power transmitted by the transmission gear 204 when rotating in one direction, and will rotate freely without resistance when rotating in the other direction. Therefore, after the torque is applied to the cable connector, the opening of the open gear 202 can be aligned with the opening of the torque device frame 201 by simply rotating the torque device 2 in the opposite direction through the adjustable handle 1, so that the cable connector can be removed from the torque device 2.

[0031] In at least one embodiment of the present application, Figure 3 and Figure 4 As shown, the transmission gear 204 has two rows. In this way, the power gear 205 transmits torque to the open gear 202 through the transmission gear 204, and the two rows of transmission gears 204 can ensure that the opening of the open gear 202 can normally receive torque when it is turned to any position.

[0032] In at least one embodiment of the present application, Figure 5As shown, the power interface 206 adopts an adjustable ratchet structure, and the torque handle 207 adopts an adjustable torque wrench structure. In this way, by setting the power interface 206 to adopt a ratchet structure, the torque handle 207 applies torque to the power gear 205 through the power interface 206, so that the torque handle 207 only needs to rotate a small angle to complete the application of torque, and the torque handle is an adjustable torque wrench structure, which can quickly adjust the maximum torque applied.

[0033] In at least one embodiment of the present application, a structure for adjusting the maximum torque is provided at the end of the torque handle 207. Thus, when the applied torque reaches a limited value, the torque handle 207 will loosen and issue a prompt.

[0034] In at least one embodiment of the present application, Figure 6 and Figure 7 As shown, the clamping device 3 includes a clamping device frame 301, a fixed clamping block 302, a movable clamping block 303, a push rod 304, a connecting block 305, a handle connecting block 306, a handle 307 and a plurality of fixing nails 308. The clamping device frame 301 is connected to the fixed clamping block 302. The handle 307 is connected to the handle connecting block 306. The clamping device frame 301 and the handle connecting block 306, the handle connecting block 306 and the connecting block 305, and the connecting block 305 and the push rod 304 are all connected and fixed by fixing nails 308, and a certain rotation is generated between them. The handle 307 is used to control the movement of the movable clamping block 303 through the handle connecting block 306, the connecting block 305 and the push rod 304 when moving, so as to change the spacing between the movable clamping block 303 and the fixed clamping block 302. In this way, the handle 307 and the handle connecting block 306 can control the forward and backward movement of the push rod 304 by rotating the connecting block 305, that is, the handle 307 controls the movement of the push rod 304, thereby changing the distance between the movable clamp block 303 and the fixed clamp block 302, and thus achieving the clamping of the core instrument casing assembly. The minimum distance between the movable clamp block 303 and the fixed clamp block 302 is adapted to the core instrument casing assembly. When the handle 307 is pushed forward, the distance between the movable clamp block 303 and the fixed clamp block 302 is the smallest. At this time, the push rod 304, the connecting block 305 and the handle connecting block 306 are in a straight line, which can generate great pressure on the core instrument casing assembly, so that the movable clamp block 303, the fixed clamp block 302 and the core instrument casing assembly are closely matched, and sufficient friction is generated to prevent the core instrument casing assembly from rotating when the cable connector is subjected to torque.

[0035] like Figure 6 , 7As shown, the push rod 304, the connecting block 305, the handle connecting block 306 and the handle 307 form a lever structure. Only a small force is needed to push the handle 307 to generate sufficient pressure between the movable clamp block 303 and the fixed clamp block 302, so that the movable clamp block, the fixed clamp block and the core instrument casing assembly fit tightly, thereby ensuring that the core instrument casing assembly will not rotate when torque is applied, thereby realizing the rapid clamping function of the core instrument casing assembly.

[0036] In at least one embodiment of the present application, Figure 6 As shown, the fixed clamp block 302 and the movable clamp block 303 are made of hard materials, and the circular grooves on the fixed clamp block 302 and the movable clamp block 30 are tightly matched with the core instrument casing assembly. In this way, when sufficient pressure is applied, the circular grooves and the core instrument casing assembly fit tightly, generating friction that can prevent rotation. Through the cooperation of the circular grooves, scratches on the surface of the core instrument casing assembly can be avoided.

[0037] It should be noted that the combination of the various technical features in the embodiments of the present application is not limited to the combination described in the embodiments of the present application or the combination described in the specific embodiments, and all technical features described in the present application can be freely combined or combined in any way unless there is a contradiction between them.

[0038] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that the steps and elements that have been clearly identified are included, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0039] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A quick disassembly and assembly device for a cable connector of a core instrument casing assembly, characterized in that: Includes adjustable handle, torque device and clamping device, The torque device and the clamping device are respectively fixed at two ends of the adjustable handle, the clamping device and the torque device have the same orientation, the adjustable handle is used to adjust the distance between the torque device and the clamping device, the torque device is used to apply torque to the cable connector, and the clamping device is used to clamp and fix the core instrument casing assembly.

2. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 1, characterized in that: The adjustable handle comprises a fixed column, a rotating handle and a movable column. The rotating handle cooperates with the movable column through a thread. The rotating handle is used to control the movement of the movable column when twisted to change the length of the adjustable handle.

3. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 2, characterized in that: There is a slot fit between the rotating handle and the fixed column, and there is a slot fit between the fixed column and the movable column.

4. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 1, characterized in that: The torque device comprises a torque device frame, an open gear, a latch, a transmission gear, a power gear, a power interface and a torque handle. The torque device frame and the open gear are adapted to the opening of the nut of the cable connector of the core instrument casing assembly; The latch is fixed on the open gear and is matched with the hole on the nut of the cable connector so as to drive the nut of the cable connector to rotate when the open gear rotates; The open gear is connected to the power gear through the transmission gear. When the power gear is used to rotate, the open gear is driven by the transmission gear to rotate. The torque handle is connected to the power gear through the power interface.

5. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 4, characterized in that: The open gear and the transmission gear are in one-way cooperation similar to a ratchet.

6. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 4, characterized in that: The transmission gear has two rows.

7. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 4, characterized in that: The power interface adopts an adjustable ratchet structure, and the torque handle adopts an adjustable torque wrench structure.

8. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 4, characterized in that: The end of the torque handle is provided with a structure for adjusting the maximum torque.

9. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to any one of claims 1 to 8, characterized in that: The clamping device comprises a clamping device frame, a fixed clamping block, a movable clamping block, a push rod, a connecting block, a handle connecting block, a handle and a plurality of fixing nails. The clamping device frame is connected to the fixed clamping block; the handle is connected to the handle connecting block; the clamping device frame and the handle connecting block, the handle connecting block and the connecting block, and the connecting block and the push rod are all connected and fixed by the fixing nails, and a certain rotation is generated between them; the handle is used to control the movement of the movable clamping block through the handle connecting block, the connecting block and the push rod when moving, so as to change the distance between the movable clamping block and the fixed clamping block.

10. The quick disassembly and assembly device of the cable connector of the core instrument casing assembly according to claim 9, characterized in that: The fixed clamp block and the movable clamp block are made of hard material, and the circular grooves on the fixed clamp block and the movable clamp block are tightly matched with the core instrument casing assembly.

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