阅读说明：本技术 一种核电站用pcb动态压力传感器拆装装置及方法 (Device and method for disassembling and assembling dynamic pressure sensor of PCB for nuclear power station ) 是由 檀炜 顾凯 李涛 杨晓杰 刘红升 陈海燕 于 2018-08-24 设计创作，主要内容包括：本发明涉及一种核电站用PCB动态压力传感器拆装装置及方法,用于在保护罩(5)内拆装PCB动态压力传感器,该拆装装置包括套筒头(1)、延长杆(2)和手柄(3),所述的手柄(3)通过延长杆(2)连接套筒头(1),信号同轴电缆(6)依次穿过手柄(3)、延长杆(2)和套筒头(1)的通孔并通过紧固螺母(4)连接PCB动态压力传感器,所述的PCB动态压力传感器通过紧固螺母(4)可拆卸的连接套筒头(1)。与现有技术相比,本发明具有操作安全、可靠、加工简单等优点。(The invention relates to a device and a method for dismounting a dynamic PCB pressure sensor for a nuclear power station, which are used for dismounting the dynamic PCB pressure sensor in a protective cover (5), and the dismounting device comprises a sleeve head (1), an extension rod (2) and a handle (3), wherein the handle (3) is connected with the sleeve head (1) through the extension rod (2), a signal coaxial cable (6) sequentially passes through holes of the handle (3), the extension rod (2) and the sleeve head (1) and is connected with the dynamic PCB pressure sensor through a fastening nut (4), and the dynamic PCB pressure sensor is detachably connected with the sleeve head (1) through the fastening nut (4). Compared with the prior art, the invention has the advantages of safe and reliable operation, simple processing and the like.)

1. The utility model provides a PCB dynamic pressure sensor dismouting device for nuclear power station for dismouting PCB dynamic pressure sensor in protective cover (5), its characterized in that, this dismouting device includes cover barrel head (1), extension rod (2) and handle (3), handle (3) connect cover barrel head (1) through extension rod (2), signal coaxial cable (6) pass the through-hole of handle (3), extension rod (2) and cover barrel head (1) in proper order and connect PCB dynamic pressure sensor through fastening nut (4), PCB dynamic pressure sensor pass through fastening nut (4) detachable and connect cover barrel head (1).

2. The device for dismounting and mounting the PCB dynamic pressure sensor for the nuclear power station as claimed in claim 1, wherein a regular hexagonal groove (11) is arranged inside the sleeve head (1), and the regular hexagonal groove (11) is matched with the fastening nut (4).

3. The device for assembling and disassembling the PCB dynamic pressure sensor for the nuclear power station as claimed in claim 1, wherein the sleeve head (1) and the extension rod (2) are of an integral structure.

4. The device for dismounting and mounting the PCB dynamic pressure sensor for the nuclear power station as claimed in claim 1, wherein a through hole is arranged at the center of the side surface of the handle (3), and the inner diameter of the through hole is the same as the outer diameter of the extension rod (2).

5. The device for dismounting and mounting the PCB dynamic pressure sensor for the nuclear power station as claimed in claim 4, wherein the handle (3) is sleeved at the root part of the extension rod (2), and the handle (3) and the extension rod (2) are fixed in an argon arc welding manner.

6. The device for dismounting and mounting the PCB dynamic pressure sensor for the nuclear power station as claimed in claim 1, wherein the sleeve head (1), the extension rod (2) and the handle (3) are respectively made of 45-size steel bars.

7. A method for assembling and disassembling the device by using the PCB dynamic pressure sensor for the nuclear power station as claimed in any one of claims 1 to 6 is characterized by comprising the following steps:

step 1, introducing a signal coaxial cable (6) from a through hole of a handle (3) and leading out from one side of a sleeve head (1);

step 2, fixing a signal coaxial cable (6) on the PCB dynamic pressure sensor through a fastening nut (4), and then locking the fastening nut (4);

step 3, fixing a fastening nut (4) in the sleeve head (1), extending the sleeve head (1) into a protective cover (5), and rotating a handle (3) to enable the outer side thread of the PCB dynamic pressure sensor to be screwed with the inner thread of the protective cover (5);

step 4, drawing out the dismounting device to finish the installation;

and 5, when the PCB dynamic pressure sensor is disassembled, the sleeve head (1) is stretched into the protective cover (5), the fastening nut (4) is sleeved by the groove of the sleeve head (1), the outer side thread of the PCB dynamic pressure sensor is unscrewed from the inner thread of the protective cover (5) by rotating the handle (3), and the disassembling and assembling device with the sensor is stretched out.

Technical Field

The invention relates to the field of dismounting devices, in particular to a dismounting device and a dismounting method for a dynamic pressure sensor of a PCB (printed circuit board) for a nuclear power station.

Background

At present, a PCB dynamic pressure sensor is used as a primary element for pressure measurement, is widely applied to the debugging stage of a domestic nuclear power station unit, is used for monitoring the dynamic pressure of a medium, has the characteristics of small volume, easy damage and the like, and belongs to a precision measurement component. The PCB dynamic pressure sensor is connected to a dynamic pressure monitoring and analyzing terminal (a secondary display element) through a fastening nut and a signal coaxial cable to form a PCB dynamic pressure testing device. During the field usage, PCB developments pressure sensor passes through outside threaded fixation on the safety cover, and the safety cover is connected with the support base and is reached the effect of fixed sensor, and this sensor belongs to the temporary measurement part, has following technical problem during the on-the-spot dismouting:

1. the length of the temporary protective cover on site is 200mm, the inner diameter phi is 50mm, and the temporary protective cover can not be manually stretched into the protective cover for operation during disassembly and assembly.

2. When the cable is disassembled and assembled, the measuring surface and the cable joint are damaged by improper use of tools.

3. There is the risk that the sensor falls to damage during dismouting.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a device and a method for disassembling and assembling a dynamic pressure sensor of a PCB for a nuclear power station.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a PCB dynamic pressure sensor dismouting device for nuclear power station for dismouting PCB dynamic pressure sensor in protective cover, this dismouting device include cover barrel head, extension rod and handle, the handle pass through the extension rod and connect cover barrel head, signal coaxial cable passes the through-hole of handle, extension rod and cover barrel head in proper order and connects PCB dynamic pressure sensor through fastening nut, PCB dynamic pressure sensor pass through fastening nut detachable and connect cover barrel head.

Preferably, a regular hexagonal groove is formed in the sleeve head, and the regular hexagonal groove is matched with the fastening nut.

Preferably, the sleeve head and the extension rod are of an integrally formed structure.

Preferably, a through hole is formed in the center of the side face of the handle, and the inner diameter of the through hole is the same as the outer diameter of the extension rod.

Preferably, the handle cover in the root of extension rod, handle and extension rod pass through argon arc and weld the mode fixed.

Preferably, the sleeve head, the extension rod and the handle are respectively made of No. 45 steel bars.

A method for disassembling and assembling the device by adopting the PCB dynamic pressure sensor for the nuclear power station comprises the following steps:

step 1, introducing a signal coaxial cable from a through hole of a handle and leading out from one side of a sleeve head;

step 2, fixing the signal coaxial cable on the PCB dynamic pressure sensor through a fastening nut, and then locking the fastening nut;

step 3, fixing a fastening nut in the sleeve head, extending the sleeve head into the protective cover, and rotating the handle to enable the outer side threads of the PCB dynamic pressure sensor to be screwed with the inner threads of the protective cover;

step 4, drawing out the dismounting device to finish the installation;

and 5, when the PCB dynamic pressure sensor is disassembled, the sleeve head extends into the protective cover, the fastening nut is sleeved by the groove of the sleeve head, the outer side thread of the PCB dynamic pressure sensor is unscrewed from the inner thread of the protective cover by rotating the handle, and the disassembling device with the sensor extends out.

Compared with the prior art, the invention has the following advantages:

1. the operation is safe and reliable: use this instrument to stretch into in the safety cover to carry out dismouting operation to the sensor, effectively reduced damage sensor and measured face, cable joint and fall the risk of damaging.

2. Simple processing and low cost: no. 45 steel is adopted as a processing material, so that the material cost is low, and the processing technology is simple.

Drawings

FIG. 1 is a left side view of the mounting and dismounting device of the present invention;

FIG. 2 is a right side view of the mounting and dismounting device of the present invention;

FIG. 3 is an exploded view of the mounting and dismounting device of the present invention;

FIG. 4 is an operation diagram of the disassembling device of the present invention.

Wherein 1 is the cover cylinder head, 2 is the extension rod, 3 is the handle, 4 is fastening nut, 5 is the safety cover, 6 is signal coaxial cable, 11 is the hexagon recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be made clear and fully described below, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

As shown in fig. 1-4, a dismounting device for a dynamic pressure sensor of a PCB for a nuclear power station is used for dismounting the dynamic pressure sensor of the PCB in a protective cover 5, and is characterized in that the dismounting device comprises a sleeve head 1, an extension rod 2 and a handle 3, the handle 3 is connected with the sleeve head 1 through the extension rod 2, a signal coaxial cable 6 sequentially passes through holes of the handle 3, the extension rod 2 and the sleeve head 1 and is connected with the dynamic pressure sensor of the PCB through a fastening nut 4, and the dynamic pressure sensor of the PCB is detachably connected with the sleeve head 1 through the fastening nut 4.

The sleeve head 1 is internally provided with a regular hexagon groove 11, and the groove 11 is matched with the fastening nut 4.

The sleeve head 1 and the extension rod 2 are of an integrated structure. The handle 3 side central point put and be equipped with the through-hole, the through-hole internal diameter the same with extension rod 2 external diameter.

Handle 3 cover at 2 roots of extension rod, handle 3 and extension rod 2 fixed through the mode that argon arc welded. The sleeve head 1, the extension rod 2 and the handle 3 are made of No. 45 steel bars and are the sleeve head 1, the extension rod 2 and the handle 3.

The inner diameter phi of the through hole of the extension rod 2 is 5mm, the outer diameter phi of the extension rod 2 is 20mm, the length of the extension rod 2 is 300mm, and the length of the handle 3 is 150 mm.

The working process of the invention is as follows:

step 1, leading in a signal coaxial cable 6 from a through hole of a handle 3 and leading out from one side of a sleeve head 1;

step 2, fixing the signal coaxial cable 6 on the PCB dynamic pressure sensor through the fastening nut 4, and then locking the fastening nut 4;

step 3, fixing a fastening nut 4 in the sleeve head 1, extending the sleeve head 1 into a protective cover 5, and rotating the handle 3 to enable the outer side threads of the PCB dynamic pressure sensor to be screwed with the inner threads of the protective cover 5;

step 4, drawing out the dismounting device to finish the installation;

and 5, when the PCB dynamic pressure sensor is disassembled, the sleeve head 1 extends into the protective cover 5, the fastening nut 4 is sleeved with the groove 11 of the sleeve head 1, the handle 3 is rotated to unscrew the outer side thread of the PCB dynamic pressure sensor from the inner thread of the protective cover 5, and the disassembling device with the sensor extends out.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.