Nuclear power valve sealing surface grinding equipment

Abstract

The utility model relates to the technical field of valve sealing surface grinding, in particular to nuclear power valve sealing surface grinding equipment which comprises a frame, a bidirectional driving assembly is installed on a top frame, abutting pieces are fixed to the bottoms of the two moving ends of the bidirectional driving assembly, and a rotary driving piece is fixed to the center of the bottom of the top frame. The two-way driving assembly can drive the two abutting pieces to work away from each other along the top frame till the two abutting pieces rapidly abut against the inner wall of the top end of the valve body, the grinding piece used for grinding is installed at the moving end of the three-dimensional driving piece, and the two-way driving assembly can drive the two abutting pieces to work away from each other along the top frame till the two abutting pieces rapidly abut against the inner wall of the top end of the valve body. The purpose of rapidly positioning the grinding piece is achieved, and then the grinding piece can be suitable for valve bodies with different calibers.

Description

Technical Field

[0001] This utility model relates to the field of valve sealing surface grinding technology, specifically a nuclear power valve sealing surface grinding equipment. Background Technology

[0002] The operation and maintenance of equipment in the nuclear power industry presents challenges such as high maintenance difficulty, high precision requirements, and safety concerns. Therefore, various countries have developed industrial intelligent maintenance robots with different functions to address these characteristics. In particular, the inner surfaces of nuclear power valves require grinding to maintain the seal between valve bodies and prevent valve blockage. However, existing grinding equipment needs to be fixed to the top of the valve body, but the valve body top port diameter varies, making rapid positioning and tightening during assembly difficult and affecting the stability of subsequent grinding work. Utility Model Content

[0003] The purpose of this invention is to provide a nuclear power valve sealing surface grinding device to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a nuclear power valve sealing surface grinding device, including a top frame, on which a bidirectional drive assembly is installed, with abutment members fixed at the bottom of the two moving ends of the bidirectional drive assembly, a rotary drive assembly fixed at the center of the bottom of the top frame, a three-dimensional drive assembly fixed at the bottom output end of the rotary drive assembly, and a grinding component for grinding installed on the moving end of the three-dimensional drive assembly.

[0005] The above components achieve the following effects: the top frame can be placed at the top opening of the valve body, and the bidirectional drive assembly can drive the two clamping parts to move away from each other along the top frame until the two clamping parts quickly press against the inner wall of the top of the valve body, thereby achieving the purpose of rapid positioning of the grinding part. This makes it suitable for valve bodies of different diameters. The rotary drive can drive the grinding part to rotate, and the three-dimensional drive can drive the grinding part to adjust its height and lateral position, so that the grinding part can fit against the inner wall of the valve body for grinding.

[0006] Preferably, the bidirectional drive assembly includes two slide rods fixed in the top frame, and sliders connected to the two abutment members are slidably sleeved on the slide rods. One of the slide rods has external threads at both ends that are threaded to the sliders, and one end of the slide rod with the external threads is connected to a forward and reverse motor.

[0007] The effect achieved by the above components is that the forward and reverse motors can drive the slide bar to rotate, driving the two sliders to move closer or further apart, thus achieving the driving purpose of the clamping parts.

[0008] Preferably, the abutting member includes an abutting block fixed to the bottom of the slider. The abutting block has side grooves at both ends, and a side block is provided in the side groove. A guide post is fixed to one side of the side block. One end of the guide post passes through the abutting block and is fixed with a limit block. A spring is sleeved on the guide post between the abutting block and the side block.

[0009] The effect achieved by the above components is as follows: the abutting block can approach and even contact the inner wall of the top of the valve body under the action of the slider. The side block pushes the guide column to move in the direction of the side groove and compresses the spring. The reverse force of the spring can further increase the abutting effect between the abutting block and the valve body, and increase the positioning effect.

[0010] Preferably, the rotary drive component includes a support fixed to the bottom of the top frame, the support having a top groove, and a drive motor connected to the top of the three-dimensional drive component is fixed in the top groove.

[0011] The effect achieved by the above components is that the grinding parts can be rotated by the drive motor.

[0012] Preferably, the three-dimensional driving component includes a vertical electric slide rail fixed to the bottom end of the output shaft of the drive motor, a horizontal electric slide rail fixed to the moving end of the vertical electric slide rail, an electric push rod perpendicularly arranged to the moving end of the horizontal electric slide rail, and the grinding component fixed to the electric push rod.

[0013] The effect achieved by the above components is that the grinding parts can be moved by the vertical electric slide rail, the horizontal electric slide rail and the electric push rod, which facilitates the grinding work in the valve body.

[0014] This utility model provides an improved grinding device for the sealing surface of nuclear power valves, which has the following improvements and advantages compared with the prior art:

[0015] Firstly, this utility model can be placed at the top opening of the valve body via a top frame, and the two abutting parts can be driven to move away from each other along the top frame via a bidirectional drive assembly until the two abutting parts quickly abut against the inner wall of the top of the valve body, thereby achieving the purpose of quickly positioning the grinding part.

[0016] Secondly, this utility model allows the clamping block to approach and eventually contact the inner wall of the valve body top under the action of the slider. The side block pushes the guide column to move towards the side groove and compresses the spring. The reverse force of the spring can further increase the clamping effect between the clamping block and the valve body, thereby increasing the positioning effect. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the assembled three-dimensional structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the clamping component in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Top frame; 2. Two-way drive assembly; 21. Slide bar; 22. Slider; 23. External thread; 24. Forward and reverse motor; 3. Clamping component; 31. Clamping block; 32. Side groove; 33. Guide post; 34. Limiting block; 35. Spring; 36. Side block; 4. Support; 5. Top groove; 6. Drive motor; 7. Three-dimensional drive component; 8. Grinding component. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved grinding device for the sealing surface of nuclear power valves. The technical solution of this utility model is as follows:

[0025] In embodiments of this utility model, such as Figures 1-3As shown, a nuclear power plant valve sealing surface grinding device includes a top frame 1. A bidirectional drive assembly 2 is installed on the top frame 1. The bidirectional drive assembly 2 includes two slide rods 21 fixed inside the top frame 1. Slider blocks 22 connected to two abutment members 3 are slidably sleeved on the slide rods 21. One end of the slide rod 21 is provided with external threads 23 that are threaded to the sliders 22. One end of the slide rod 21 with external threads 23 is driven by a forward and reverse motor 24. The forward and reverse motor 24 can drive the slide rod 21 to rotate, driving the two sliders 22 to move closer or further apart. The mechanism is designed to drive the clamping element 3. The clamping element 3 includes a clamping block 31 fixed to the bottom of the slider 22. Both ends of the clamping block 31 have side grooves 32, and side blocks 36 are disposed within the side grooves 32. A guide post 33 is fixed to one side of the side block 36. One end of the guide post 33 passes through the clamping block 31 and is fixed with a limit block 34. A spring 35 is sleeved on the guide post 33, located between the clamping block 31 and the side blocks 36. The clamping block 31, driven by the slider 22, can approach and eventually contact the inner wall of the valve body top. The side blocks 36 push the guide post 36... 3 moves towards the side groove 32 and compresses the spring 35. The reverse force of the spring 35 can further increase the clamping force between the clamping block 31 and the valve body. The bottom of the two moving ends of the bidirectional drive assembly 2 is fixed with clamping parts 3. A rotary drive is fixed at the center of the bottom of the top frame 1. The rotary drive includes a support 4 fixed to the bottom of the top frame 1. A top groove 5 is opened on the support 4. A drive motor 6 connected to the top of the three-dimensional drive 7 is fixed in the top groove 5. The drive motor 6 can drive the grinding part 8 to rotate. A three-dimensional drive component 7 is fixed at the bottom output end of the valve body. The three-dimensional drive component 7 includes a vertical electric slide rail fixed at the bottom of the output shaft of the drive motor 6. A horizontal electric slide rail is fixed on the moving end of the vertical electric slide rail. An electric push rod is installed on the moving end of the horizontal electric slide rail, which is perpendicular to it. The grinding component 8 is fixed on the electric push rod. The grinding component 8 can be driven to move through the vertical electric slide rail, the horizontal electric slide rail and the electric push rod, which facilitates the grinding work in the valve body. The grinding component 8 for grinding is installed on the moving end of the three-dimensional drive component 7.

[0026] The working principle of the nuclear power valve sealing surface grinding equipment provided by this utility model is as follows: The top frame 1 can be placed at the top opening of the valve body. The forward and reverse motors 24 can drive the slide rod 21 to rotate, driving the two abutting parts 3 at the bottom of the two sliders 22 to move away from each other along the top frame 1 until the two abutting parts 3 quickly abut against the inner wall of the top of the valve body, thereby achieving the purpose of rapid positioning of the grinding part 8. Thus, it can be applied to valve bodies of different diameters. The abutting block 31 can approach and abut against the inner wall of the top of the valve body under the drive of the slider 22. The side block 36 pushes the guide column 33 to move towards the side groove 32 and compresses the spring 35. The reverse force of the spring 35 can further increase the abutting effect between the abutting block 31 and the valve body. The drive motor 6 can drive the grinding part 8 to rotate. The vertical electric slide rail, the horizontal electric slide rail and the electric push rod can drive the grinding part 8 to move, so that the grinding part 8 can fit against the inner wall of the valve body for grinding.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nuclear power plant valve sealing surface grinding device, comprising a top frame (1), characterized in that: A bidirectional drive assembly (2) is installed on the top frame (1). A clamping member (3) is fixed at the bottom of the two moving ends of the bidirectional drive assembly (2). A rotary drive member is fixed at the center of the bottom of the top frame (1). A three-dimensional drive member (7) is fixed at the bottom output end of the rotary drive member. An abrasive member (8) for grinding is installed on the moving end of the three-dimensional drive member (7).

2. The nuclear power plant valve sealing surface grinding equipment according to claim 1, characterized in that: The bidirectional drive assembly (2) includes two slide rods (21) fixed in the top frame (1). The slide rods (21) are slidably sleeved with sliders (22) connected to the two abutting members (3). One of the slide rods (21) has external threads (23) at both ends that are threaded to the sliders (22). One end of the slide rod (21) with the external threads (23) is connected to a forward and reverse motor (24).

3. The nuclear power valve sealing surface grinding equipment according to claim 2, characterized in that: The clamping member (3) includes a clamping block (31) fixed to the bottom of the slider (22). The clamping block (31) has side grooves (32) at both ends. A side block (36) is provided in the side groove (32). A guide post (33) is fixed on one side of the side block (36). One end of the guide post (33) passes through the clamping block (31) and is fixed with a limit block (34). A spring (35) is sleeved on the guide post (33) between the clamping block (31) and the side block (36).

4. The nuclear power valve sealing surface grinding equipment according to claim 1, characterized in that: The rotary drive includes a support (4) fixed to the bottom of the top frame (1), and a top groove (5) is provided on the support (4). A drive motor (6) connected to the top of the three-dimensional drive (7) is fixed in the top groove (5).

5. A nuclear power valve sealing surface grinding device according to claim 4, characterized in that: The three-dimensional driving component (7) includes a vertical electric slide rail fixed at the bottom of the output shaft of the drive motor (6), a horizontal electric slide rail fixed on the moving end of the vertical electric slide rail, an electric push rod installed on the moving end of the horizontal electric slide rail perpendicular to it, and the grinding component (8) fixed on the electric push rod.

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