CN111964558A - Fan-shaped conductor radius testing tool and testing method - Google Patents
Fan-shaped conductor radius testing tool and testing method Download PDFInfo
- Publication number
- CN111964558A CN111964558A CN202010902981.4A CN202010902981A CN111964558A CN 111964558 A CN111964558 A CN 111964558A CN 202010902981 A CN202010902981 A CN 202010902981A CN 111964558 A CN111964558 A CN 111964558A
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- measuring
- fan
- shaped conductor
- vertex
- radius
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
Abstract
The invention discloses a fan-shaped conductor radius testing tool which comprises a measuring block, wherein the measuring block is provided with a flat upper surface, a measuring groove is arranged below the measuring block, and the measuring groove is provided with a vertex and two measuring surfaces intersected at the vertex. The invention facilitates the measurement of the radius of the conductor split strand block.
Description
Technical Field
The present invention relates to a conductor testing tool and method, and more particularly, to a sector conductor radius testing tool and method.
Background
In the production of power cables, the split conductor for the cables is usually formed by combining a plurality of fan-shaped split strand blocks, in the debugging stage of the split blocks, the width and the height of the fan-shaped strand blocks can only be measured by a conventional measuring tool, the diameter of the outer diameter of the conductor formed by stranding the strand blocks cannot be measured, and inconvenience is brought to the production process control.
Those skilled in the art are therefore interested in developing a fan-shaped conductor radius test tool and method that facilitates measuring the radius of a conductor segment.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a tool and a method for testing the radius of a segment conductor, which is convenient for measuring the radius of a segment strand of the conductor.
In order to achieve the purpose, the invention provides a fan-shaped conductor radius testing tool which comprises a measuring block, wherein the measuring block is provided with a flat upper surface, a measuring groove is arranged below the measuring block, and the measuring groove is provided with a vertex and two measuring surfaces intersected at the vertex. The measuring surface is matched with the surface of the fan-shaped conductor and is tightly attached, so that the testing accuracy is improved.
Further, the two measuring surfaces are symmetrical along a straight line passing through the vertex and perpendicular to the upper surface. The two measuring surfaces are symmetrical along a straight line perpendicular to the upper surface, so that the measuring surfaces are tightly attached to the cutting surface of the fan-shaped conductor, and the accuracy of the test is further improved
Furthermore, the included angle between the two measuring surfaces is 0-180 degrees. And selecting a proper measuring block according to different fan-shaped conductors.
Further, a straight distance L1 from the apex to the upper surface of the measuring block is 10 mm.
The invention also provides a method for testing the radius of the sector conductor, which comprises the following steps:
1) closely attaching the cutting surface of the fan-shaped conductor to the measuring surface, wherein the top point is superposed with the top point of the fan-shaped conductor;
2) measuring a vertical distance L between the top point of the periphery of the fan-shaped conductor and the upper surface;
3) and subtracting the distance L1 from the top point to the upper surface from the vertical distance L between the peripheral top point of the fan-shaped conductor and the upper surface to obtain the radius of the fan-shaped conductor. The radius of the fan-shaped conductor can be obtained by matching the test tool with the vernier caliper, and the method is simple and rapid.
The invention has the beneficial effects that: the radius of the fan-shaped conductor is measured by adopting the testing tool which is tightly attached to the cutting surface of the fan-shaped conductor, so that the testing tool is simple and has strong applicability; the radius of the fan-shaped conductor can be obtained by matching the test tool with the vernier caliper, so that the method is quick and efficient; whether the structure of the fan-shaped conductor meets the requirements or not can be judged according to the fit degree of the measuring surface and the cutting surface of the fan-shaped conductor, and timely adjustment is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of a mating structure according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "in communication" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1 to 2, the sector conductor radius testing tool comprises a measuring block 1, wherein the measuring block 1 is provided with a flat upper surface 2, the left surface and the right surface of the measuring block 1 can be provided with arc grooves for taking conveniently, and the roughness Ra of the upper surface 2 is less than 0.8 μm. The measuring block 1 is provided with the measuring groove 4 below, the measuring groove 4 is V-shaped usually, the measuring groove 4 is provided with a peak 6 and two measuring surfaces 8 intersected on the peak 6, and the peak 6 is mainly used for being matched with a peak 7 of a fan-shaped conductor, so that the measuring accuracy is improved. The two measuring surfaces 8 are symmetrical along a straight line Q passing through the vertex 6 and perpendicular to the upper surface 2, and the included angle between the two measuring surfaces 8 is 0-180 degrees. In this embodiment, the angle between the two measuring surfaces 8 is 71 ° or 71.5 °.
The surface roughness Ra of the measuring surface 8 is less than 0.4 mu m, the purpose is mainly to improve the fit degree with the cutting surface of the fan-shaped conductor 5, the fan-shaped conductor 5 is formed by fine cutting through a conductor cutting machine, the cutting surface is flat and smooth, and therefore the surface roughness of the measuring surface 8 is smaller than the cutting surface of the fan-shaped conductor 5, and the measuring precision can be improved. In order to reduce the error, the fan-shaped conductor 5 should be completely immersed in the measuring slot 4, i.e. the peripheral apex of the fan-shaped conductor 5 should not extend beyond the lower surface 3.
The distance from the apex 6 to the upper surface 2 is L1, and in this embodiment, the distance L1 from the apex 6 to the upper surface 2 of the measuring block is 10 mm. The distance L1 from the apex 6 to the top surface 2 of the block connects the test tool side to side and also facilitates operator testing.
A sector conductor radius testing method comprises the following steps:
1) tightly attaching the cut surfaces of the fan-shaped conductors 5 to the measuring surfaces 8, and enabling the vertexes 6 and the vertexes 7 of the fan-shaped conductors to coincide, wherein if the cut surfaces of the fan-shaped conductors 5 cannot be completely attached to each other, gaps between the cut surfaces of the fan-shaped conductors 5 and the corresponding measuring surfaces 8 are equal;
2) measuring the vertical distance L between the peripheral vertex of the fan-shaped conductor 5 and the upper surface 2; the distance L is measured for multiple times and multiple positions, the maximum value of L is taken as a standard, and the measurement can be carried out by adopting a vernier for the convenience of measurement of an operator;
3) the radius of the fan-shaped conductor 5 is obtained by subtracting the distance L1 from the top surface 2 from the top point 6 by the perpendicular distance L between the top point of the outer periphery of the fan-shaped conductor 5 and the top surface 2.
The working principle of the invention is as follows: the cutting surface of the fan-shaped conductor 5 is tightly attached to the measuring surface 8, the vertex 6 is overlapped with the vertex 7 of the fan-shaped conductor, the vertical distance L between the peripheral vertex of the fan-shaped conductor 5 and the upper surface 2 is measured by a vernier caliper, the radius of the fan-shaped conductor 5 is the difference value between L and L1, and in order to improve the accuracy of the test, the upper surface 2 and the measuring surface 8 are both smooth and flat.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. A sector conductor radius test tool is characterized in that: the measuring device comprises a measuring block (1), wherein the measuring block (1) is provided with a flat upper surface (2), a measuring groove (4) is arranged below the measuring block (1), and the measuring groove (4) is provided with a vertex (6) and two measuring surfaces (8) which are intersected with the vertex (6).
2. The fan-shaped conductor radius test tool of claim 1, wherein: the two measuring surfaces (8) are symmetrical along a line (Q) passing through the apex (6) and perpendicular to the upper surface (2).
3. The fan-shaped conductor radius test tool of claim 1, wherein: the included angle between the two measuring surfaces (8) is 0-180 degrees.
4. The fan-shaped conductor radius test tool of claim 1, wherein: the linear distance (L1) from the apex (6) to the upper surface (2) of the measuring block is 10 mm.
5. A sector conductor radius test method using the test tool of any one of claims 1 to 4, comprising the steps of:
1) tightly attaching the cutting surface of the fan-shaped conductor (5) to the measuring surface (8), and enabling the vertex (6) to be overlapped with the vertex (7) of the fan-shaped conductor;
2) measuring the vertical distance (L) between the peripheral vertex of the fan-shaped conductor (5) and the upper surface (2);
3) and subtracting the distance (L1) from the vertex (6) to the upper surface (2) by using the vertical distance (L) between the peripheral vertex of the fan-shaped conductor (5) and the upper surface (2) to obtain the radius of the fan-shaped conductor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902981.4A CN111964558A (en) | 2020-09-01 | 2020-09-01 | Fan-shaped conductor radius testing tool and testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010902981.4A CN111964558A (en) | 2020-09-01 | 2020-09-01 | Fan-shaped conductor radius testing tool and testing method |
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| Publication Number | Publication Date |
|---|---|
| CN111964558A true CN111964558A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010902981.4A Pending CN111964558A (en) | 2020-09-01 | 2020-09-01 | Fan-shaped conductor radius testing tool and testing method |
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| CN (1) | CN111964558A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202281581U (en) * | 2011-10-14 | 2012-06-20 | 宁波球冠电缆股份有限公司 | Diameter detection tool for high-pressure segmental conductor |
-
2020
- 2020-09-01 CN CN202010902981.4A patent/CN111964558A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202281581U (en) * | 2011-10-14 | 2012-06-20 | 宁波球冠电缆股份有限公司 | Diameter detection tool for high-pressure segmental conductor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201120 |
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| RJ01 | Rejection of invention patent application after publication |