Auxiliary support for nuclear power plant generator conducting plate

Abstract

The utility model discloses a nuclear power station generator conducting board loading and unloading auxiliary support, including elevating stand, carousel, clamping frame, carousel rotatable installation is in elevating stand and is controlled elevating by elevating stand, clamping frame installs on carousel, and clamping frame includes fixed clamping plate and movable clamping plate, and is connected through a plurality of bolts between fixed clamping plate and corresponding movable clamping plate. The utility model discloses a nuclear power station generator conducting board loading and unloading auxiliary support, and hydraulic lift and rotating motor cooperate and work, and can be flexible height and angle adjustment, and fast positioning, and clamping frame passes through sliding block sliding rail and bolt connection, and adapts to different specifications conducting board, and shortens loading and unloading time. Multiple safety design guarantees operation stability, and the bolt block and the positioning hole combination prevent carousel accidental rotation, and the counterweight plate balances the gravity center, and the anti -drop limiting plate and the observation port further reduce the risk, and improve generator conducting board loading and unloading efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of loading and unloading auxiliary tools, specifically relating to an auxiliary support for loading and unloading conductive plates of nuclear power plant generators. Background Technology

[0002] In the operation and maintenance of nuclear power plants, the loading and unloading of generator conductive plates is a crucial step in ensuring the normal operation of the equipment. Currently, traditional methods of loading and unloading conductive plates mostly rely on manual labor with the aid of simple tools or conventional lifting equipment. Manual operation is extremely labor-intensive due to the large size and heavy weight of the conductive plates. Furthermore, the instability of human handling during transport and installation can easily lead to collisions, abrasions, or even falls, posing a serious threat to the personal safety of operators and the integrity of the conductive plates. While conventional lifting equipment can solve some handling problems, it often lacks the ability to precisely position and adjust the angle of the conductive plates. In actual loading and unloading processes, the internal space layout of nuclear power plants is complex, and the operating environment has strict requirements. The equipment needs to be flexibly adjusted in height and angle according to different installation positions, but existing equipment is difficult to meet this requirement, resulting in insufficient installation accuracy of the conductive plates, which affects subsequent power generation efficiency and equipment stability. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an auxiliary support for loading and unloading conductive plates of nuclear power plant generators, including a lifting frame, a turntable, and a clamping frame. The turntable is rotatably mounted on the lifting frame and its lifting and lowering are controlled by the lifting frame. The clamping frame is mounted on the turntable and includes a fixed clamping plate and a movable clamping plate. Several sliders are fixedly connected to both ends of the fixed clamping plate. Several slide rails are fixedly connected to the turntable and are arranged parallel to each other. The sliders are slidably mounted on the corresponding slide rails and correspond to the slide rails. Several bolt holes are provided on both sides of the fixed clamping plate and both sides of the movable clamping plate. The fixed clamping plate and the corresponding movable clamping plate are connected by several bolts.

[0004] As a preferred embodiment of the above technical solution, a rotating shaft is fixedly connected to the center of the turntable, the rotating shaft is mounted on the lifting frame through bearings, and the rotating shaft is driven to rotate by a rotary motor.

[0005] As a preferred embodiment of the above technical solution, one end of the rotating shaft is fixedly connected to the turntable, and the other end is provided with a threaded part. Several counterweight plates are installed on the threaded part, and the center of the counterweight plate is provided with a central hole for the threaded part to pass through. Several locking nuts are threadedly connected to the threaded part.

[0006] As a preferred embodiment of the above technical solution, the turntable is provided with several observation ports.

[0007] As a preferred embodiment of the above technical solution, both ends of the slide rail are fixedly connected to anti-detachment limiting plates.

[0008] As a preferred embodiment of the above technical solution, the lifting frame is a mobile hydraulic lifting frame.

[0009] As a preferred embodiment of the above technical solution, a pin block is fixedly connected to the lifting frame. The pin block is provided with a fixed pin hole and a flexible pin hole. A fixed pin is inserted into the fixed pin hole and a flexible pin is inserted into the flexible pin hole. The turntable is provided with a number of fixed holes and a number of movable holes. The fixed holes and movable holes are arranged in an array around the center circumference of the turntable. The fixed holes are for inserting one end of the fixed pin and the movable holes are for inserting one end of the flexible pin.

[0010] The beneficial effects of this utility model are as follows: The auxiliary support for loading and unloading conductive plates of nuclear power plant generators utilizes a hydraulic lifting frame and a rotary motor working in tandem, allowing for flexible adjustment of height and angle for rapid positioning. The clamping frame is connected via sliders, rails, and bolts, adapting to conductive plates of different specifications and shortening loading and unloading time. Multiple safety designs ensure stable operation: the combination of pin blocks and positioning holes prevents accidental rotation of the turntable; a counterweight plate balances the center of gravity; and anti-detachment limit plates and observation ports further reduce risks and improve the efficiency of loading and unloading generator conductive plates. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle. Detailed Implementation

[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1-2 As shown, the auxiliary support for loading and unloading conductive plates of a nuclear power plant generator includes a lifting frame 1, a turntable 2, and a clamping frame. The turntable 2 is rotatably mounted on the lifting frame 1 and its lifting and lowering are controlled by the lifting frame 1. The clamping frame is mounted on the turntable 2 and includes a fixed clamping plate 3 and a movable clamping plate 4. Several sliders 5 are fixedly connected to both ends of the fixed clamping plate 3. Several slide rails 6 are fixedly connected to the turntable 2 and are arranged parallel to each other. The sliders 5 are slidably mounted on the corresponding slide rails 6. Several evenly spaced bolt holes 7 are provided on both sides of the fixed clamping plate 3 and both sides of the movable clamping plate 4. The fixed clamping plate 3 and the corresponding movable clamping plate 4 are connected by several bolts. The fixed clamping plate 3 slides on the slide rails 6 via the sliders 5, and the clamping width can be adjusted to accommodate conductive plates of different sizes. The movable clamping plate 4 is connected to the fixed clamping plate 3 by bolts and is fixed by bolts when clamping the conductive plate, providing an adjustable clamping force. Through the functions of moving, lifting, and rotating, the conductive plate can be quickly moved to the target position.

[0016] Furthermore, a rotating shaft 8 is fixedly connected to the center of the turntable 2. The rotating shaft 8 is mounted on the lifting frame 1 via bearings and is driven to rotate by a rotary motor. The rotary motor drives the rotating shaft 8 to rotate, causing the turntable 2 and the clamping frame to rotate horizontally, thereby achieving precise adjustment of the conductive plate angle. The turntable 2 can also be manually rotated for fine-tuning.

[0017] Furthermore, one end of the rotating shaft 8 is fixedly connected to the turntable 2, and the other end is provided with a threaded portion 10. Several counterweight plates 11 are mounted on the threaded portion 10, and each counterweight plate 11 has a central hole through which the threaded portion 10 passes. Several locking nuts 12 are threadedly connected to the threaded portion 10. Depending on the weight of the conductive plate, the number of counterweight plates 11 can be increased or decreased through the threaded portion 10 and fixed by the locking nuts 12, adjusting the overall center of gravity of the turntable 2 to counteract the torque generated by the weight of the conductive plate. This prevents the turntable 2 from tilting or overturning due to uneven load, improving stability during loading and unloading and reducing the risk of conductive plate collisions caused by equipment shaking. The number of counterweight plates 11 can be quickly adjusted to accommodate conductive plates of different weights, enhancing the equipment's adaptability to diverse operating scenarios.

[0018] Furthermore, the turntable 2 is equipped with several observation ports 13. Operators can directly observe details such as the connection status between the clamping frame and the conductive plate, and the tightness of the bolts through the observation ports 13. This allows for real-time monitoring of the work progress, timely detection of problems such as insecure clamping or positional misalignment, and avoidance of safety hazards or installation errors caused by blind operation.

[0019] Furthermore, both ends of the slide rail 6 are fixedly connected to anti-detachment limiting plates. The limiting plates prevent the slider 5 from sliding out of the end of the slide rail 6, restricting the movement range of the slider 5 and ensuring that the fixing clamp 3 slides stably on the slide rail 6. This prevents the slider 5 from accidentally falling off, which could lead to the failure of the clamping frame or the fall of the conductive plate, improving structural reliability and ensuring the safety of operators.

[0020] Furthermore, the lifting frame 1 is a mobile hydraulic lifting frame 1. The hydraulic system drives the lifting frame 1 to rise and fall vertically, and the height adjustment is achieved smoothly and controllably through the extension and retraction of the hydraulic cylinder, and it also has a mobility function (equipped with casters).

[0021] Furthermore, a pin block 15 is fixedly connected to the lifting frame 1. The pin block 15 has a fixed pin hole 16 and a flexible pin hole 17. A fixed pin 18 is inserted into the fixed pin hole 16, and a flexible pin 19 is inserted into the flexible pin hole 17. The turntable 2 has several fixed holes 20 and several movable holes 21, which are arranged in an array around the center circumference of the turntable 2. One end of the fixed pin 18 is inserted into the fixed hole 20, and one end of the flexible pin 19 is inserted into the movable hole 21. After the fixed pin 18 is inserted into the fixed hole 20, it rigidly locks the angle of the turntable 2, which is suitable for loading and unloading scenarios that require strict fixed position. After the flexible pin 19 is inserted into the movable hole 21, the turntable 2 is allowed to be slightly adjusted (such as to compensate for installation errors) through the elastic structure, while providing a certain limiting force. The rigid or flexible positioning mode can be selected according to the operation requirements to improve the applicability and reliability of the equipment under different working conditions. The fixed pin 18 can be a conventional pin, while the flexible pin 19 is made of spring or elastic plastic.

[0022] It is worth mentioning that the technical features of the mobile hydraulic lifting frame, rotary motor and other related technologies involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and control method and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the utility model point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0023] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. An auxiliary support for loading and unloading conductive plates of a nuclear power plant generator, characterized in that, The device includes a lifting frame, a turntable, and a clamping frame. The turntable is rotatably mounted on the lifting frame and its lifting and lowering are controlled by the lifting frame. The clamping frame is mounted on the turntable and includes a fixed clamping plate and a movable clamping plate. Several sliders are fixedly connected to both ends of the fixed clamping plate. Several slide rails are fixedly connected to the turntable and are arranged parallel to each other. The sliders are slidably mounted on the corresponding slide rails. Several bolt holes are provided on both sides of the fixed clamping plate and both sides of the movable clamping plate. The fixed clamping plate and the corresponding movable clamping plate are connected by several bolts.

2. The auxiliary support for loading and unloading the conductive plate of the nuclear power plant generator as described in claim 1, characterized in that, A rotating shaft is fixedly connected to the center of the turntable. The rotating shaft is mounted on the lifting frame via bearings and is driven to rotate by a rotary motor.

3. The auxiliary support for loading and unloading the conductive plate of a nuclear power plant generator as described in claim 2, characterized in that, One end of the rotating shaft is fixedly connected to the turntable, and the other end is provided with a threaded part. Several counterweight plates are installed on the threaded part. The center of the counterweight plate is provided with a central hole for the threaded part to pass through. Several locking nuts are threadedly connected to the threaded part.

4. The auxiliary support for loading and unloading the conductive plate of the nuclear power plant generator as described in claim 1, characterized in that, The turntable is equipped with several observation ports.

5. The auxiliary support for loading and unloading the conductive plate of a nuclear power plant generator as described in claim 1, characterized in that, Both ends of the slide rail are fixedly connected to anti-detachment limiting plates.

6. The auxiliary support for loading and unloading the conductive plate of the nuclear power plant generator as described in claim 1, characterized in that, The lifting frame is a mobile hydraulic lifting frame.

7. The auxiliary support for loading and unloading the conductive plate of a nuclear power plant generator as described in claim 1, characterized in that, The lifting frame is fixedly connected to a pin block, which has a fixed pin hole and a flexible pin hole. A fixed pin is inserted into the fixed pin hole, and a flexible pin is inserted into the flexible pin hole. The turntable has several fixed holes and several movable holes, which are arranged in an array around the center circumference of the turntable. The fixed holes are for inserting one end of the fixed pin, and the movable holes are for inserting one end of the flexible pin.

Images