Simple installation shield cover structure adapted to nuclear power plant scenario

Abstract

The utility model discloses simple installation shielding cover structure adapts to nuclear power scene, including gear box upper cover and gear box lower cover, gear box upper cover and gear box lower cover are connected through elastic plunger, drop out plug or quick bonding fixed connection, and the inside forms the outer shielding type drive assembly loading area, when elastic plunger is fixed part, elastic plunger fixedly arranged on gear box lower cover, corresponding gear box upper cover has orientation and positioning groove, presses gear box upper cover when loading, uses the calliper wrench or pry tool to lift gear box upper cover when disassembling, forms quick shielding cover dismounting structure.

Description

Technical Field

[0001] This utility model relates to special equipment and its control technology, specifically, a shielding cover structure that is easy to install in nuclear power scenarios. Background Technology

[0002] When the reactor pressure vessel top cover is closed, the internal components, including control rod drive rods, thermocouple rods, and core rod assemblies, are columnar components. These components need to be precisely aligned with the corresponding pipes on the top cover during the top cover hoisting process. Accurate positioning is crucial to prevent any deviation. If the columnar components are not properly aligned with the top cover pipes, the columnar components may bend or be damaged during the top cover descent. Furthermore, due to the presence of water in the reactor pool and the high radiation dose during the top cover descent, there is a certain degree of danger. This prevents on-site technicians from reaching the reactor pool to observe the alignment of the internal components. Therefore, a remotely controllable visual inspection device is needed. This device would allow nuclear power plant technicians to remotely control the visual elements through a master-slave control mechanism, monitor the alignment of each component in real time, and record the entire process.

[0003] For this application scenario, the vision inspection system needs to be quick to install and disassemble, and also needs to be flexible and adjustable with multiple degrees of freedom to switch the inspection angle during operation and adapt to different stack top cover diameters. Therefore, designing a protective structure for the drive part of the vision inspection system is essential for the normal operation of the vision inspection system.

[0004] Therefore, it is necessary to provide a shielding cover structure that is easy to install in nuclear power scenarios to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a shielding cover structure that is easy to install and suitable for nuclear power plant scenarios.

[0006] The technical solution is as follows: A simple-to-install shielding cover structure suitable for nuclear power scenarios includes a gearbox upper cover and a gearbox lower cover. The gearbox upper cover and gearbox lower cover are fixedly connected by elastic plungers, detachable pins or quick adhesive, forming an external shielding drive component loading area inside. When the elastic plunger is a fixed component, the elastic plunger is fixedly installed on the lower cover of the gearbox. The corresponding upper cover of the gearbox has guide and positioning grooves. When installing, press the upper cover of the gearbox. When disassembling, use calipers or pry tools to lift the upper cover of the gearbox, forming a quick shield cover disassembly and assembly structure.

[0007] Furthermore, the drive component includes a drive body, which is connected to a gear transmission module. The drive body and the gear transmission module are combined to form a partial rotation drive structure for the vision inspection equipment.

[0008] Furthermore, the drive unit is composed of an electric motor.

[0009] Furthermore, the gear transmission module is a two-stage gear transmission, including a small gear connected to the drive body, a large gear corresponding to the small gear, and the large gear being fixedly connected to the vision inspection equipment.

[0010] Furthermore, the externally shielded drive assembly loading area is provided with a drive component mounting bracket module, which includes at least a motor bracket A and a motor bracket B.

[0011] Furthermore, a rotation angle sensing plate is provided for the corresponding gear transmission module, and the rotation angle sensing plate is mounted on the sensing plate bracket.

[0012] Compared with existing technologies, this utility model provides a quick-assembly and disassembly externally shielded drive component loading area, reducing radiation interference to the rotation drive components of the visual inspection equipment. Through gear reduction, the rotation of the motor is transmitted to the rotation of the camera probe. The gear transmission motion is precise and accurate. With the help of the rotation angle sensing plate, the rotation angle of the gear is monitored in real time, thereby accurately controlling the rotation position of the camera probe. This ensures that the multi-channel camera probes are accurately aligned during hoisting operations, providing precise video input and ensuring the safety and effectiveness of the operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0014] Example:

[0015] See Figure 1 This embodiment demonstrates a simple installation shielding cover structure adapted to nuclear power scenarios, including a gearbox upper cover 1 and a gearbox lower cover 2. The gearbox upper cover 1 and gearbox lower cover 2 are fixedly connected by an elastic plunger 3, and an external shielding drive assembly 3 loading area is formed inside. Alternatively, a detachable pin or quick-release adhesive can be used to replace the elastic plunger 3; The elastic plunger 3 is fixedly installed on the lower cover 2 of the gearbox. The corresponding upper cover of the gearbox 1 has guide and positioning grooves. When installing, press the upper cover of the gearbox. When disassembling, use calipers or pry tools to lift the upper cover of the gearbox, forming a quick shield cover disassembly and assembly structure.

[0016] The drive assembly includes a drive body 4, which is connected to a gear transmission module. The drive body 4 and the gear transmission module are combined to form a partial rotation drive structure for the vision inspection equipment.

[0017] The drive unit 4 is composed of an electric motor.

[0018] The gear transmission module is a two-stage gear transmission, including a small gear 5 connected to the drive body 4, a large gear 6 corresponding to the small gear, and the large gear fixedly connected to the vision inspection equipment part 100.

[0019] The externally shielded drive assembly loading area is equipped with a drive component mounting bracket module, which includes at least a motor bracket A7 and a motor bracket B8.

[0020] A rotation angle sensing plate 9 is provided for the corresponding gear transmission module, and the rotation angle sensing plate is mounted on the sensing plate bracket 10.

[0021] Motor bracket A and motor bracket B are fixed by pin 11.

[0022] The pinion and gear are respectively equipped with a smooth rotation component consisting of bearings 12.

[0023] Compared with existing technologies, this utility model provides a quick-assembly and disassembly externally shielded drive component loading area, reducing radiation interference to the rotation drive components of the visual inspection equipment. Through gear reduction, the rotation of the motor is transmitted to the rotation of the camera probe. The gear transmission motion is precise and accurate. With the help of the rotation angle sensing plate, the rotation angle of the gear is monitored in real time, thereby accurately controlling the rotation position of the camera probe. This ensures that the multi-channel camera probes are accurately aligned during hoisting operations, providing precise video input and ensuring the safety and effectiveness of the operation.

[0024] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A shielding cover structure suitable for easy installation in nuclear power plant scenarios, characterized in that: Includes a gearbox upper cover and a gearbox lower cover, which are fixedly connected by elastic plungers, detachable pins or quick-release adhesives, forming an externally shielded drive component loading area inside; When the elastic plunger is a fixed part, the elastic plunger is fixedly installed on the lower cover of the gearbox. The corresponding upper cover of the gearbox has guide and positioning grooves. When installing, press the upper cover of the gearbox. When disassembling, use calipers or pry tools to lift the upper cover of the gearbox, forming a quick shield cover disassembly and assembly structure.

2. The shielding cover structure adapted to nuclear power plant scenarios according to claim 1, characterized in that: The drive assembly includes a drive body, which is connected to a gear transmission module. The drive body and the gear transmission module are combined to form a rotation drive structure for the vision inspection equipment.

3. The shielding cover structure adapted to nuclear power plant scenarios according to claim 2, characterized in that: The driving unit consists of an electric motor.

4. The shielding cover structure adapted to nuclear power plant scenarios according to claim 2, characterized in that: The gear transmission module is a two-stage gear transmission, including a small gear connected to the drive body, a large gear corresponding to the small gear, and the large gear being fixedly connected to the vision inspection equipment.

5. A simple installation shielding cover structure adapted to nuclear power plant scenarios according to claim 4, characterized in that: The externally shielded drive assembly loading area is equipped with a drive component mounting bracket module, which includes at least motor bracket A and motor bracket B.

6. The shielding cover structure adapted to nuclear power plant scenarios according to claim 5, characterized in that: The corresponding gear transmission module is equipped with a rotation angle sensing plate, which is mounted on the sensing plate bracket.

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