CN215491491U

CN215491491U - GIL conductor straightness measuring device

Info

Publication number: CN215491491U
Application number: CN202121157724.9U
Authority: CN
Inventors: 石玲玲; 张文儒; 李洪刚
Original assignee: Sdee Hitachi High Voltage Switchgear Co ltd
Current assignee: Sdee Hitachi High Voltage Switchgear Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-01-11
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a straightness measuring device for a GIL conductor, belonging to the technical field of GIL conductor measurement, and comprising a movable support frame, a support frame and a measuring device, wherein the movable support frame is arranged below the conductor and is used for supporting the conductor; the measuring scale is positioned at the periphery of the conductor and used for measuring the straightness of the conductor; the movable support frames are three and are respectively supported on the left side, the middle side and the right side of the conductor; each movable support frame all is equipped with the gyro wheel of two symmetries on, the conductor supports through two gyro wheels. The GIL conductor straightness measuring device disclosed by the utility model is simple in structure, high in detection precision, low in cost and suitable for large-scale detection.

Description

GIL conductor straightness measuring device

Technical Field

The utility model relates to the technical field of GIL conductor measurement, in particular to a GIL conductor straightness measuring device.

Background

The metal supervision work is an important component of technical supervision in the power industry and is an important measure for safety production in the field of SF6 gas insulated metal-enclosed metal switch devices. In view of the increasing requirements of many power enterprises on the management work of metal supervision, the requirements on the detection work of equipment size and performance are more and more strict. The metal conductor is a key component in SF6 gas insulated enclosed metal pipeline equipment (GIL), and the longest length is about 18 meters.

The straightness measurement of the metal conductor is an important work for ensuring the performance of equipment, and is an important parameter for measuring the deformation of the conductor, the straightness of the metal conductor is unqualified, the central position of the equipment cannot be determined during installation, the butt joint dislocation of products is easily caused, the stress on one side of a contact finger at the interface of the conductor is too large, the current imbalance at the contact is caused, and the contact overheating phenomenon is generated.

In summary, how to detect the straightness of the metal conductor to monitor the deformation of the circular component is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a GIL conductor straightness measuring device, which is capable of obtaining a metal conductor straight line deviation to monitor a deformation amount of the metal conductor straightness.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the straightness measuring device for the GIL conductor comprises a movable support frame, a measuring device and a measuring device, wherein the movable support frame is arranged below the conductor and is used for supporting the conductor; and the measuring scale is positioned at the periphery of the conductor and is used for measuring the straightness of the conductor.

Furthermore, the movable support frames are three and are respectively supported on the left side, the middle side and the right side of the conductor.

Furthermore, each movable support frame is provided with two symmetrical rollers, and the conductor is supported by the two rollers.

Furthermore, the height of the movable support frame can be adjusted.

Further, the measuring platform is arranged below the conductor.

Further, the measuring scale is located on the measuring platform and on the periphery of the conductor, and the straightness of the conductor can be measured by rotating the conductor.

Specifically, the measuring ruler may be a turning ruler or a height ruler.

Furthermore, the movable support frame is a hydraulic support frame or a stud support frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. the GIL conductor straightness measuring device disclosed by the utility model has the advantages that the structure of the detecting device is simple, only 3 adjustable movable supporting frames and one measuring scale are needed, the combination is simple, the operation is convenient, the GIL conductor straightness measuring device is suitable for large-scale use, and the cost is reduced;

2. the GIL conductor straightness measuring device disclosed by the utility model is simple to operate and accurate in positioning, the detection precision is ensured, the workload of workers is saved, and the detection efficiency is improved;

3. according to the GIL conductor straightness measuring device disclosed by the utility model, the conductor is supported by the roller, so that the conductor is convenient to rotate, and the straightness can be rapidly measured.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view at A-A of the present invention;

fig. 3 is a cross-sectional view at B-B of the present invention.

In the figure: 1-a movable support frame, 2-a conductor, 3-a measuring platform, 4-a roller and 5-a turning ruler.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment provides a GIL conductor straightness measuring device, including activity support frame, measuring platform and dipperstick. As shown in fig. 1, the number of the movable support frames 1 is 3, the movable support frames are respectively supported on the left side, the middle side and the right side of the conductor 2, the measuring table is located at one end of the conductor 2, and the measuring scale is located on the measuring platform 3.

As shown in fig. 2, the height of the movable support frame 1 is adjustable, two symmetrical rollers 4 are arranged on the movable support frame 1, and the conductor 2 is supported by the two rollers 4. Specifically, the height of the movable support frame 1 can be adjusted by adopting a hydraulic support frame or a stud support frame, and in the embodiment, the hydraulic support frame is adopted as the movable support frame 1, so that the adjustment is convenient. When the device is used, the three movable support frames 1 are adjusted to be uniform in height, the three support points on the same horizontal line are obtained and connected to form a horizontal line, and whether the straightness of the metal conductor 2 is within a tolerance range can be measured, so that the deformation of the circular component is monitored.

As shown in fig. 3, after the conductor 2 is placed on the movable support frame 1, the measuring scale is fixed on the measuring platform 3, the measuring scale can be at a certain distance from the edge of the conductor 2, the distance is a tolerance reference value, and by rotating the conductor 2, whether the measuring scale is in contact with the edge of the conductor 2 or not or the measuring scale is pushed outwards, and whether the straightness of the conductor 2 is out of tolerance or not can be determined.

Specifically, the dipperstick can be turning chi 5 or tongue, in this embodiment, uses turning chi 5, and assurance dipperstick that can be better is in the vertical state with measuring platform 3, makes the detection more accurate.

In application, as shown in fig. 1, the movable support frames 1 arranged below the conductor 2 are sequentially fixed at the lower side of the conductor 2, and the distance between adjacent movable support frames 1 is set at equal intervals according to actual conditions, in this embodiment, the conductor 2 with the length of about 18000mm and the peripheral diameter of 178mm, and the straightness of the conductor 2 is ± 3mm, for example, the measurement is performed:

firstly, arranging the leftmost movable support frame 1 at a position 500mm away from the edge of the conductor 2, adjusting the height of the movable support frame 1 by 6000mm from the edge of the adjacent two movable support frames 1, and ensuring that the central lines of the rollers 4 in contact with the conductor 2 at each position are on the same horizontal line; secondly, set up measuring platform 3 below the other end of conductor 2, obtain conductor 2 center to the size of turning rule 5 edge through calculating: the radius of the conductor 2 and the tolerance of the conductor 2 are 178/2+3 and 92mm, and the turning rule 5 is fixed on the measuring platform 3; and finally, rotating the conductor 2 for one circle by taking the center of the conductor 2 as a reference, if the surface of the conductor 2 is not in contact with the edge of the turning ruler 5, indicating that the straightness of the conductor 2 is within a tolerance range, meeting the requirement and judging the conductor to be qualified, and if the conductor 2 rotates for one circle, indicating that the straightness of the conductor 2 is out of tolerance and judging the conductor to be unqualified, wherein the surface of the conductor 2 is in contact with the edge of the turning ruler 5.

Through the technical scheme provided by the embodiment, the problems that the standard measuring tool in the original measuring method has many check points, is slow in speed, is not good in positioning, is easy to generate measurement deviation, is not suitable for large-batch piece-by-piece measurement and the like are solved, the measuring method is suitable for piece-by-piece measurement with strict requirements on the diameter size of the ultra-long metal conductor, and is simple in structure, high in detection precision, simple to operate, low in cost and suitable for large-batch detection.

It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A GIL conductor straightness measuring device, comprising:

the movable support frame is arranged below the conductor and is used for supporting the conductor; the movable support frames are three and are respectively supported on the left side, the middle side and the right side of the conductor; the height of the movable support frame is adjustable;

and the measuring scale is positioned at the periphery of the conductor and is used for measuring the straightness of the conductor.

2. The GIL conductor straightness measuring device according to claim 1, wherein each of the movable support frames is provided with two symmetrical rollers, and the conductor is supported by the two rollers.

3. The GIL conductor straightness measuring device according to claim 1, further comprising a measuring platform disposed below the conductor.

4. The GIL conductor straightness measuring device as set forth in claim 3, wherein the measuring ruler is located on the measuring platform at the periphery of the conductor, and the straightness of the conductor can be measured by rotating the conductor.

5. The GIL conductor straightness measuring device according to claim 2, wherein the movable support frame is a hydraulic support frame or a stud support frame.