CN217878627U

CN217878627U - Clamping and positioning device

Info

Publication number: CN217878627U
Application number: CN202123409448.3U
Authority: CN
Inventors: 张超; 蒋兴福; 张高剑; 杨明晓; 覃捷; 徐善宇
Original assignee: China Nuclear Power Operation Technology Corp Ltd; Huaneng Group Technology Innovation Center Co Ltd; Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Current assignee: China Nuclear Power Operation Technology Corp Ltd; Huaneng Group Technology Innovation Center Co Ltd; Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-11-22
Anticipated expiration: 2031-12-31

Abstract

The disclosure belongs to the technical field of nuclear power, and particularly relates to a clamping and positioning device. In the valve pipeline clamping device, the first hand wheel, the clamping screw rod, the left clamping disc, the sealing gasket, the right clamping disc, the left support, the base, the second hand wheel, the lifting screw rod, the supporting plate and the right support are matched with each other, valve position fixing and rapid clamping can be achieved through operation of the two handles, and the valve pipeline clamping requirements of various sizes are met.

Description

Clamping and positioning device

Technical Field

The utility model belongs to the technical field of the nuclear power, concretely relates to press from both sides tight positioner.

Background

In a high-temperature gas cooled reactor, a helium system belongs to a primary loop boundary, the requirement of helium as a core coolant on the tightness of the system is very strict, and valves and pipelines of the helium system are mainly installed and connected in a welding mode. When the valve is overhauled, the valve needs to be disassembled from a system pipeline in a cutting mode, and then a pressing test is carried out on the valve.

The pipe sections with certain lengths are reserved at the two ends of the disassembled valve and are not easy to seal, so that how to effectively seal the pipe orifices at the two ends of the disassembled valve becomes the problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art, the method is provided.

According to an aspect of the embodiments of the present disclosure, there is provided a clamping and positioning device, including: the device comprises a first hand wheel, a clamping screw rod, a left clamping disc, a sealing gasket, a right clamping disc, a left support, a base, a second hand wheel, a lifting screw rod, a supporting plate and a right support;

the left support, the right support and the base are fixedly connected to form a supporting structure of the pressing device;

the first hand wheel is fixedly connected with one end of a clamping screw rod, the clamping screw rod is in threaded connection with the left side support, and the clamping screw rod penetrates through the other end of the left side support and is connected with a left side clamping disc;

under the condition that the first hand wheel is operated to drive the clamping screw rod to rotate, the left positioning disc can be driven to linearly move in the horizontal direction;

the right clamping disc is fixedly connected to one surface, facing the left support, of the right support, and the right clamping disc is opposite to the left clamping disc;

the second hand wheel is connected with one end of the lifting screw rod, the lifting screw rod is in threaded connection with the base, and the lifting screw rod penetrates through the other end of the base and is fixedly connected with the supporting plate;

under the condition that a second hand wheel is operated to drive the lifting screw rod to rotate, the lifting screw rod can drive the supporting plate to linearly move in the vertical direction;

the tight dish of left side clamp with the tight dish of right side clamp is hollow disc structure, the inlet port is seted up to the side that the tight dish of left side clamp, the exhaust hole is seted up to the tight dish side of right side clamp, the tight dish of left side clamp towards the one side of takeover with the air cock is seted up to the tight dish of right side clamp towards the one side of takeover, the tight dish of left side clamp is sealed at the takeover tip of treating sealing valve one end, the tight dish of right side clamp is sealed under the condition of the takeover tip of the valve other end, the air current that gets into from the inlet port of the tight dish of left side clamp flows through the air cock of the tight dish of left side clamp, valve, the air cock of the tight dish of right side clamp in proper order, discharges from the venthole on the tight dish of right side clamp.

In one possible implementation, the clamping and positioning device further includes:

the upper surface of the base is provided with a linear guide rail, the second hand wheel is connected with the bottom end of the lifting screw rod in a sliding mode on the linear guide rail, and the second hand wheel and the lifting screw rod move linearly along the guide rail.

In a possible implementation manner, the clamping and positioning device further comprises a sealing gasket, and the sealing gasket is provided with a positioning hole;

the air faucet of the left clamping disc is protruded, one surface, provided with the air faucet, of the left clamping disc is provided with a mounting groove, and the air faucet of the left clamping disc penetrates out of a positioning hole of an embedded sealing gasket under the condition that the sealing gasket is embedded in the mounting groove;

the right side presss from both sides tight dish air cock arch, the mounting groove is seted up to the one side that the right side presss from both sides tight dish has the air cock, and under the circumstances of sealed pad embedding mounting groove, the air cock that the right side pressed from both sides tight dish is worn out from the sealed locating hole that fills up of embedding.

In a possible realisation, the clamping and positioning means comprise a plurality of pairs of gaskets, each pair of gaskets being of the same size, the gaskets of a different pair being of a different size.

In one possible implementation, the material of the gasket is polytetrafluoroethylene.

In a possible implementation mode, the clamping screw rod is hinged with the ball head of the left clamping disc, so that the sealing gasket of the clamping disc can be attached to the pipe orifice of the valve in a self-adaptive mode.

The beneficial effect of this disclosure lies in: in the valve pipeline clamping device, the first hand wheel, the clamping screw rod, the left clamping disc, the sealing gasket, the right clamping disc, the left support, the base, the second hand wheel, the lifting screw rod, the supporting plate and the right support are matched with each other, valve position fixing and rapid clamping can be achieved through operation of the two handles, and the valve pipeline clamping requirements of various sizes are met.

Drawings

FIG. 1 is a schematic diagram illustrating a clamp positioning device according to an exemplary embodiment.

FIG. 2 is a schematic illustration of a left clamping disk of a clamping and positioning device according to an exemplary embodiment.

FIG. 3 is a schematic view of a gasket of a clamp-on positioning device according to an exemplary embodiment.

FIG. 4 is a partial cross-sectional view of a clamp positioning device shown in accordance with an exemplary embodiment.

In the figure:

1-a first hand wheel, 2-a clamping screw rod, 3-a left clamping disc, 4-a sealing pad, 5-a valve,

6-right clamping disc, 7-left support, 8-base, 9-second hand wheel, 10-lifting screw rod,

11-supporting plate, 12-right side support, 13-air inlet, 14-air nozzle, 15-positioning hole, 16-connecting pipe,

17-air outlet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of a clamp positioning device shown in accordance with an exemplary embodiment. FIG. 2 is a schematic illustration of a left clamping disk of a clamping and positioning device according to an exemplary embodiment. FIG. 3 is a schematic view of a gasket of a clamp positioning device according to an exemplary embodiment. FIG. 4 is a partial cross-sectional view of a clamp positioning device shown in accordance with an exemplary embodiment. As shown in fig. 1 to 4, the clamping and positioning device includes: the device comprises a first hand wheel 1, a clamping screw rod 2, a left clamping disc 3, a sealing pad 4, a right clamping disc 6, a left support 7, a base 8, a second hand wheel 9, a lifting screw rod 10, a supporting plate 11 and a right support 12;

the left support 7, the right support 12 and the base 8 are fixedly connected to form a supporting structure of the pressing device;

the first hand wheel 1 is fixedly connected with one end of a clamping screw rod 2, the clamping screw rod 2 is in threaded connection with the left side support 7, and the clamping screw rod 2 penetrates through the other end of the left side support 7 to be connected with a left side clamping disc 3;

under the condition that the first hand wheel 1 is operated to drive the clamping screw rod 2 to rotate, the left positioning disc can be driven to linearly move in the horizontal direction;

the right clamping disc 6 is fixedly connected to one surface of the right support 12 facing the left support 7, and the right clamping disc 6 is opposite to the left clamping disc;

the second hand wheel 9 is connected with one end of the lifting screw rod 10, the lifting screw rod 10 is in threaded connection with the base 8, the lifting screw rod 10 penetrates through the other end of the base 8 and is fixedly connected with the supporting plate 11, and the supporting plate 11;

under the condition that the second hand wheel 9 is operated to drive the lifting screw rod 10 to rotate, the supporting plate 11 can be driven to linearly move in the vertical direction;

the left side presss from both sides tight dish 3 with the right side presss from both sides tight dish 6 and is hollow disc structure, inlet port 13 is seted up to the side that the tight dish 3 of left side pressed from both sides, the right side presss from both sides tight dish 6 side and sets up the exhaust hole, the tight dish 3 of left side is taken over 16 one side and the air cock 14 is seted up towards the one side of taking over 16 to the tight dish 6 of right side clamp, the tight dish 3 of left side clamp is sealed at the 16 tip of takeover of treating sealed valve 5 one end, the tight dish 6 of right side clamp is sealed under the condition of the 16 tip of takeover of the valve 5 other end, the air cock 14 of the tight dish 6 of air cock 14, valve 5, right side clamp of air cock 14 that the tight dish 6 was pressed from both sides to the left side air inlet 13 entering of the tight dish 3 of left side flows through in proper order, discharges from the venthole 17 on the tight dish 6 of right side clamp.

the upper surface of the base 8 is provided with a linear guide rail, the bottom ends of the second hand wheel 9 and the lifting screw rod 10 are connected on the linear guide rail in a sliding manner, and the second hand wheel 9 and the lifting screw rod 10 do linear motion along the guide rail.

In a possible implementation manner, the clamping and positioning device further comprises a sealing gasket 4, and the sealing gasket 4 is provided with a positioning hole 15;

the air tap 14 of the left clamping disc 3 is raised, one surface of the left clamping disc 3, which is provided with the air tap 14, is provided with an installation groove, and under the condition that the sealing gasket 4 is embedded in the installation groove, the air tap 14 of the left clamping disc 3 penetrates out of a positioning hole 15 of the embedded sealing gasket 4;

the right side presss from both sides tight dish 6 air cock 14 arch, the mounting groove is seted up to the one side that right side presss from both sides tight dish 6 has air cock 14, and under the condition of sealed 4 embedding mounting grooves, the air cock 14 of right side clamp tight dish 6 is worn out from the locating hole 15 of the sealed 4 that fills up of embedding.

In a possible realisation, the clamping and positioning means comprise a plurality of pairs of gaskets 4, each pair of gaskets 4 being of the same size and the gaskets 4 of different pairs being of different sizes. Can meet the clamping requirements of pipelines with various sizes.

In one possible implementation, the clamping screw is articulated with the left-hand clamping disk ball head.

In one application example, the following operations may be performed with reference to fig. 1 to 4.

The gasket 4 is selected to be of an appropriate size according to the size of the nipple 16. The diameter of the sealing gasket 4 is slightly larger than that of the connecting pipe 16, so that the requirement of complete coverage for realizing sealing is met.

One of the gaskets 4 is mounted on the air cap 14 on the left clamping disk 3 through the positioning hole 15, and the other gasket 4 is mounted on the right clamping disk 6.

The valve 5 has connecting pipes 16 at both ends. The valve 5 is hoisted above the clamping device by a hoisting tool and slowly descends until the connecting pipes 16 at the two sides of the valve 5 are close to the axial height of the sealing gasket 4. Then, the lifting screw rod 10 drives the supporting plate 11 to move upwards together by rotating the second wheel 9. After the supporting plate 11 is contacted with the lower part of the valve 5, the fine adjustment is continuously performed by rotating the second hand wheel 9, so that the connecting pipe 16 is basically aligned with the axis of the sealing gasket 4.

And rotating the first hand wheel 1 to move the left clamping disc 3 to the right to contact and clamp the connecting pipe 16, so that the valve 5 is clamped and positioned.

When the pressure test operation is carried out, the air flow sequentially passes through the air inlet 13, the air nozzle 14, the connecting pipe 16 and the valve 5 on the left clamping disc 3. Finally, the air is discharged from the air outlet hole 17 on the right clamping disk 6 to form a complete passage.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A clamp positioning device, comprising: the device comprises a first hand wheel, a clamping screw rod, a left clamping disc, a sealing gasket, a right clamping disc, a left support, a base, a second hand wheel, a lifting screw rod, a supporting plate and a right support;

2. The clamp positioning device of claim 1, further comprising:

the upper surface of the base is provided with a linear guide rail, the second hand wheel is connected with the bottom end of the lifting screw rod in a sliding mode on the guide rail, and the second hand wheel is connected with the lifting screw rod along the guide rail in a linear motion mode.

3. The clamping and positioning device according to claim 1, further comprising a sealing pad, wherein the sealing pad is provided with a positioning hole;

4. The clamp positioning device of claim 1, wherein the clamp positioning device comprises a plurality of pairs of gaskets, each pair of gaskets being the same size, and the gaskets of different pairs being different sizes.

5. The clamp positioning device of claim 3, wherein the gasket is polytetrafluoroethylene.

6. The clamping fixture of claim 1, wherein said clamping screw is articulated to a left clamping disk ball head.