Nuclear power station refueling machine dynamometer dismounting mechanism

Abstract

The utility model relates to the technical field of dynamometer disassembly and assembly, and particularly discloses a nuclear power station refueling machine dynamometer disassembly and assembly mechanism which comprises a tension seat plate A, a tension seat plate B, a first locking screw, a second locking screw and two U-shaped pads, a through hole a is formed in the middle of the tension seat plate A, through holes b are formed in the two sides of the through hole a, and the first locking screw and the second locking screw are connected through the U-shaped pads. A through hole d is formed in the middle of the tension seat plate B, a second nut is welded to the through hole d, a threaded push rod is connected to the second nut in a threaded mode, and through holes c are formed in the two sides of the second nut; the first locking screw and the second locking screw both penetrate through the through hole b and the through hole c and are locked through a nut flat gasket and a first nut. The disassembly and assembly mechanism is safe and reliable in operation process and normal in function, disassembly and assembly work is effectively completed under the condition that the dynamometer is not damaged, and smooth maintenance work of the refueling machine is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of force measuring instrument disassembly and assembly technology, specifically a force measuring instrument disassembly and assembly mechanism for a nuclear power plant refueling machine. Background Technology

[0002] The force gauge on the refueling machine of a nuclear power plant is used to measure and transmit force data during the operation of the refueling machine. It is not only of great value, but also directly affects the safety of nuclear fuel operation. The space where the force gauge is installed is small. The original method of disassembly and assembly was to use a hammer to strike it. If the force is slightly too great, the solder on the data acquisition line of the force gauge will be broken off, causing damage to the force gauge. Therefore, a disassembly and assembly mechanism for the force gauge of the nuclear power plant refueling machine is provided. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a mechanism for disassembling and assembling a force gauge for a nuclear power plant refueling machine, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a disassembly and assembly mechanism for a force gauge of a nuclear power plant refueling machine, comprising a tension seat plate A, a tension seat plate B, a first locking screw and a second locking screw, and two U-shaped pads. The tension seat plate A has a through hole a in the middle, and through holes b are provided on both sides of the through hole a. The tension seat plate B has a through hole d in the middle, and a second nut is welded onto the through hole d. A threaded push rod is threaded onto the second nut, and through holes c are provided on both sides of the second nut.

[0005] Both the first and second locking screws pass through through holes b and c, and are locked in place by a nut washer and the first nut.

[0006] As a preferred technical solution of this utility model, the two U-shaped pads are placed between the inside of the force gauge bracket and the joint bearing when the force gauge of the material changer is disassembled and assembled.

[0007] As a preferred embodiment of this utility model, one end of the threaded push rod is provided with a tapered tip.

[0008] As a preferred embodiment of this utility model, the through hole a in the middle of the tension seat plate A is placed at one end of the force measuring instrument with the data acquisition line, and the tension seat plate B is placed at the other end of the force measuring instrument.

[0009] As a preferred embodiment of this utility model, a nut is welded onto the threaded push rod.

[0010] In a preferred embodiment of this utility model, both tension seat plate A and tension seat plate B are made of stainless steel.

[0011] As a preferred embodiment of this utility model, both tension seat plate A and tension seat plate B are welded with reinforcing ribs.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The disassembly and assembly mechanism operates safely and reliably, functioning normally. It effectively completes the disassembly and assembly work while ensuring that the force gauge is not damaged, thus guaranteeing the smooth progress of the material changer maintenance work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the tension seat plate B of this utility model;

[0016] Figure 3 This is a schematic diagram of the tension seat plate A of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of this utility model.

[0018] In the diagram: 1. Tension seat plate A; 2. Tension seat plate B; 3. Threaded push rod; 4. Force gauge; 5. Nut washer; 6. First locking screw; 7. Second locking screw; 8. First nut; 101. Through hole a; 102. Through hole b; 201. Through hole c; 202. Second nut; 9. Reinforcing rib plate; 10. Spherical bearing; 11. Force gauge bracket; 12. U-shaped washer. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0020] Example: Please refer to Figure 1-4 This utility model provides a technical solution: a disassembly and assembly mechanism for a force measuring instrument of a nuclear power plant refueling machine, including a tension seat plate A1, a tension seat plate B2, a first locking screw 6 and a second locking screw 7, and two U-shaped pads 12. A through hole a101 is opened in the middle of the tension seat plate A1, and through holes b102 are opened on both sides of the through hole a101. A through hole d is opened in the middle of the tension seat plate B2, and a second nut 202 is welded on the through hole d. A threaded push rod 3 is threadedly connected to the second nut 202, and through holes c201 are opened on both sides of the second nut 202.

[0021] Both the first locking screw 6 and the second locking screw 7 pass through the through hole b102 and the through hole c201, and are locked through the nut washer 5 and the first nut 8.

[0022] like Figure 4 As shown, the two U-shaped pads 12 are placed between the inside of the force gauge bracket 11 and the spherical bearing 10 when the force gauge 4 of the material changer is disassembled and assembled.

[0023] One end of the threaded push rod 3 is provided with a cone tip. The threaded push rod 3 is rotated and advanced on the second nut 202, so that the cone tip squeezes out the force measuring instrument 4.

[0024] The through hole a101 in the middle of the tension seat plate A1 is placed at one end of the force measuring instrument 4 with the data acquisition line, and the tension seat plate B2 is placed at the other end of the force measuring instrument 4. The diameter of the through hole a101 is larger than that of the force measuring instrument 4.

[0025] A nut is welded onto the threaded push rod 3 to facilitate rotation of the threaded push rod 3 and achieve the purpose of saving effort.

[0026] Both tension seat plate A1 and tension seat plate B2 are made of stainless steel, which improves their service life.

[0027] Both tension seat plate A1 and tension seat plate B2 are welded with reinforcing ribs 9.

[0028] Working Principle: A disassembly and assembly mechanism for a refueling machine force gauge in a nuclear power plant maintains a stable connection between the disassembly and assembly mechanism and the force gauge bracket 11 during disassembly, while protecting the force gauge from damage. A tension seat plate A1 with a through hole a101 is fitted onto one end of the force gauge 4 with the data acquisition line, and a tension seat plate B2 is placed on the other end of the force gauge 4, with the process hole (ejector hole) at that end aligned with the center position of the threaded push rod 3. During the process of inserting two locking screws into the tension seat plate A1 and tension seat plate B2 and locking them through the nut washer 5 and the first nut 8, the conical tip of the threaded push rod 3 must be aligned with the process hole (ejector hole) of the force gauge to ensure that the force applied during disassembly and assembly is on the axis of the force gauge. Two U-shaped washers 12 are added between the two sides of the spherical bearing 10 and the inner side of the force gauge bracket 11. Disassembly of the nuclear power plant refueling machine force gauge is carried out and completed by uniformly applying force and rotating the threaded push rod 3 at a constant speed.

[0029] When installing the force gauge, first adjust the distance between tension seat plate A1 and tension seat plate B2 to the maximum, which is the outer distance of the force gauge bracket plus the length of the force gauge. Insert the force gauge (shaft) between the inlet end of the force gauge bracket and tension seat plate B2. Pass the data acquisition line of one end of the force gauge through the two mounting holes and the spherical bearing 10 on the force gauge bracket, and then through the through hole a101 in the middle of tension seat plate A1. Then rotate the threaded push rod 3 to push it in, thus achieving the purpose of installation.

[0030] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A force gauge disassembly and assembly mechanism for a nuclear power plant refueling machine, comprising a tension seat plate A (1), a tension seat plate B (2), a first locking screw (6), a second locking screw (7), and two U-shaped pads (12), characterized in that: The tension seat plate A (1) has a through hole a (101) in the middle, and through holes b (102) are provided on both sides of the through hole a (101). The tension seat plate B (2) has a through hole d in the middle, and a second nut (202) is welded on the through hole d. A threaded push rod (3) is threadedly connected to the second nut (202), and through holes c (201) are provided on both sides of the second nut (202). The first locking screw (6) and the second locking screw (7) both pass through the through hole b (102) and the through hole c (201) and are locked by the nut washer (5) and the first nut (8).

2. The nuclear power plant refueling machine force gauge disassembly and assembly mechanism according to claim 1, characterized in that: The two U-shaped pads (12) are placed between the inside of the force gauge bracket (11) and the joint bearing (10) when the force gauge (4) of the material changer is disassembled and assembled.

3. The nuclear power plant refueling machine force gauge disassembly and assembly mechanism according to claim 1, characterized in that: One end of the threaded push rod (3) is provided with a cone tip.

4. The nuclear power plant refueling machine force gauge disassembly and assembly mechanism according to claim 1, characterized in that: The through hole a (101) in the middle of the tension seat plate A (1) is placed at one end of the force measuring instrument (4) with the data acquisition line, and the tension seat plate B (2) is placed at the other end of the force measuring instrument (4).

5. The nuclear power plant refueling machine force gauge disassembly and assembly mechanism according to claim 1, characterized in that: A nut is welded onto the threaded push rod (3).

6. The nuclear power plant refueling machine force gauge disassembly and assembly mechanism according to claim 1, characterized in that: Both tension seat plate A(1) and tension seat plate B(2) are stainless steel plates.

7. The nuclear power plant refueling machine force gauge disassembly and assembly mechanism according to claim 1, characterized in that: Both tension seat plate A (1) and tension seat plate B (2) are welded with reinforcing ribs (9).

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