An auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire

Abstract

The present invention discloses an auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire, which includes a wire fixing device, a vertical shaft, a base, a clamping groove and a clamping ring; the vertical shaft is arranged at the top of the base, and the wire fixing device includes a rotating ring, a wire fixing rod and a connecting rod. There are multiple rotating rings, and the multiple rotating rings are sleeved outside the vertical shaft. A connecting rod is arranged between two adjacent rotating rings. A plurality of horizontally arranged wire fixing rods are circumferentially distributed on the outer circumference of each rotating ring. A wire fixing hole is arranged at one end of each wire fixing rod away from the rotating ring, and a nut is threadedly connected to the wire fixing rod at the outer end of the wire fixing hole; a plurality of clamping grooves are also arranged on the top of the base, and the plurality of wire fixing rods on the clamping ring at the bottom are respectively limited in the corresponding clamping grooves; the auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire in the present invention will not cause waste of personnel during use, is convenient to operate, and has remarkable effects.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring the diameter of metal wires for overhead conductors, and particularly to an auxiliary device for measuring the diameter of round conductors of metal wires for overhead conductors. Background Art

[0002] As an important part of transmission lines, overhead conductors play a role in conducting current and transmitting electrical energy, such as steel-cored aluminum stranded wires, galvanized steel stranded wires, etc. Metal wires commonly used for overhead conductors include: hard aluminum wires, aluminum alloy wires, galvanized steel wires, aluminum-clad steel wires, etc. The "Round Wire Concentric Stranded Overhead Conductors (GB / T 1179-2017)" clearly stipulates the diameter values of each type of metal single wire for overhead conductors. Standards such as "Hard Aluminum Wires for Overhead Strands (GB / T 17048-2017)", "Galvanized Steel Wires for Overhead Strands (GB / T 3428-2012)", and "Aluminum-Clad Steel Wires for Electrical Engineering (GB / T 17937-2009)" stipulate the deviation values of the corresponding diameters. The single wire diameter of metal wires, as the most basic control index of metal wires, directly affects the usability of overhead conductors and the safe operation of the power grid, and also affects the tensile strength index of metal wires. When conducting failure analysis on overhead conductors, the inspection of the diameter of metal wires is also a necessary test item.

[0003] The "Test Methods for Bare Wires - Dimension Measurement (GB / T 4909.2-2009)" clearly stipulates the measurement methods for the diameters of various conductors. The measurement method for the diameter of round conductors is to measure in two mutually perpendicular directions on the same cross-section perpendicular to the axis of the specimen, and at least three measurements are taken at both ends and the middle of the specimen. The distance between each measurement point should be not less than 200 mm. According to the "Round Wire Concentric Stranded Overhead Conductors (GB / T 1179-2017)", the nominal diameters of metal wires used for various overhead conductors are in the range of 1 mm - 6 mm. According to the requirements of the "Test Methods for Bare Wires - Dimension Measurement (GB / T 4909.2-2009)", an outside micrometer is selected for measurement. However, the outside micrometer requires two-handed operation, one hand holding the frame of the outside micrometer and the other hand rotating the knob of the outside micrometer. This makes it impossible for a single tester to accurately complete the measurement of the diameter of round conductors of metal wires for overhead conductors, and it is also difficult to measure in two mutually perpendicular directions during diameter measurement. Therefore, it is extremely easy to cause deviation in the index data of the diameter of round conductors of metal wires for overhead conductors, and even affect the evaluation of the test indicators.

[0004] At present, there are mainly two methods for dealing with the above problems: one is that two testers cooperate to complete the measurement of the diameter of the round conductor of the overhead wire metal wire; the other is to simply temporarily fix the round conductor of the overhead wire metal wire and then measure the diameter of the round conductor of the overhead wire metal wire. The first method above wastes manpower, has low efficiency, and it is difficult to measure in mutually perpendicular directions. The second method above is difficult to find a suitable fixing place and it is also difficult to measure in mutually perpendicular directions. Therefore, there is an urgent need for a convenient and effective processing method to overcome the deficiencies of the above problems when measuring the diameter of the round conductor of the overhead wire metal wire. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for measuring the diameter of the round conductor of the overhead wire metal wire to solve the problems existing in the above-mentioned prior art, which is convenient to operate and has remarkable effects when in use.

[0006] To achieve the above purpose, the present invention provides the following solution:

[0007] The present invention provides an auxiliary device for measuring the diameter of the round conductor of the overhead wire metal wire, including a wire fixing device, a vertical shaft, a base, a clamping groove and a clamping ring; the vertical shaft is arranged on the top of the base, the wire fixing device includes a rotating ring, a wire fixing rod and a connecting rod, there are a plurality of the rotating rings, and the plurality of rotating rings are sleeved outside the vertical shaft, the connecting rod is arranged between two adjacent rotating rings, a plurality of horizontally arranged wire fixing rods are circumferentially distributed on the outer circumference of each rotating ring, a wire fixing hole is arranged at one end of each wire fixing rod away from the rotating ring, and a nut is threadedly connected to the wire fixing rod at the outer end of the wire fixing hole; a plurality of clamping grooves are also arranged on the top of the base, and the plurality of wire fixing rods on the clamping ring at the bottom end are respectively limited in the corresponding clamping grooves.

[0008] Preferably, a top cap is further arranged at the top end of the vertical shaft.

[0009] Preferably, a clamping ring is respectively arranged at the top end and the bottom end of the vertical shaft, the clamping ring at the top end is located between the topmost rotating ring and the top cap, and the clamping ring at the bottom end is located between the lowermost rotating ring and the base.

[0010] Preferably, the radius of the clamping ring is 40 - 45 mm, the wall thickness is 15 - 20 mm, and the height is 40 - 50 mm.

[0011] Preferably, there are four rotating rings, four connecting rods are connected between two adjacent rotating rings, and four wire fixing rods are integrally connected to the outer circumference of each rotating ring in a circumferential direction.

[0012] Preferably, the radius of the rotating ring is 35-40mm, the wall thickness is 10-15mm, and the height is 20-30mm; the radius of the wire fixing rod is 10-15mm, and the length is 165-170mm; the wire fixing hole is arranged at a distance of 20-25mm from the outer end of the wire fixing rod, the wire fixing hole is a cylindrical wire fixing hole, and the diameter of the wire fixing hole is 6mm; a thread is arranged within a range of 25-31mm from the outer end of the wire fixing rod, and each of the wire fixing rods is equipped with a nut; the radius of the connecting rod is 5-7.5mm, and the length is 470-480mm.

[0013] Preferably, the vertical shaft has a radius of 25-30 mm and a height of 1610-1620 mm, and the top cap is a hemispherical body with a radius of 40-45 mm, and the top cap is integrally connected to the vertical shaft.

[0014] Preferably, the base is a rectangular plate structure, the side length of the base is 400-410 mm, and the thickness is 10-20 mm.

[0015] Preferably, the bottom end of the vertical shaft is integrally connected to the upper surface of the base.

[0016] Preferably, the positioning groove is a cylindrical structure with a radius of 25-30 mm and a height of 50-60 mm. A semicircular groove with a radius of 10-15 mm is provided at the top of the positioning groove through the center of the circle, and the semicircular groove is used to limit the wire fixing rod.

[0017] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0018] The overhead conductor metal wire round conductor diameter measurement auxiliary device of the present invention comprises a wire fixing device, a vertical shaft, a base, a clamping groove and a clamping ring. During the test, the metal wire of the required length is cut and straightened, and fixed in the wire fixing hole of the wire fixing device after calibrating the test point, and the vertical diameter of the connecting rod of the metal wire section to be measured is measured, and then the wire fixing device is rotated 90° to measure the diameter of the metal wire in the direction of the connecting rod of the same section to be measured. It can effectively solve the above-mentioned problems in the measurement of the diameter of the overhead conductor metal wire round conductor, avoid waste of manpower and low efficiency, solve the problem of difficulty in measuring in mutually perpendicular directions, avoid causing deviation in the diameter data of the overhead conductor metal single wire and affecting the judgment of the detection index, and at the same time, the overhead conductor metal wire round conductor diameter measurement auxiliary device based on the present invention is easy to operate and has significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of an auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire in the present invention;

[0021] Figure 2 It is a schematic structural diagram of a wire fixing device in the present invention;

[0022] Figure 3 It is a top view schematic diagram of the wire fixing device in the present invention;

[0023] Figure 4 It is a schematic structural diagram of a rotating ring in the wire fixing device in the present invention;

[0024] Figure 5 It is a schematic structural diagram of a wire fixing rod in the wire fixing device in the present invention;

[0025] Figure 6 It is a schematic structural diagram of a connecting rod in the wire fixing device in the present invention;

[0026] Figure 7 It is a schematic structural diagram of a vertical shaft and a base in the present invention;

[0027] Figure 8 It is a schematic structural diagram of a clamping groove in the present invention;

[0028] Figure 9 It is a schematic structural diagram of a clamping ring in the present invention;

[0029] Figure 10 It is a schematic diagram of the position distribution of the clamping grooves in the present invention;

[0030] Figure 11 It is a schematic diagram of the position distribution of the clamping grooves and the wire fixing rods in the present invention;

[0031] Figure 12 It is a schematic assembly diagram of the auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire in the present invention and a single metal wire;

[0032] Figure 13 It is a schematic diagram of the first measurement of the auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire in the present invention;

[0033] Figure 14 It is a schematic diagram of the second measurement of the auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire in the present invention.

[0034] In the figure: 11, rotating ring; 12, wire fixing rod; 13, connecting rod; 14, nut; 15, wire fixing hole; 21, top cap; 22, vertical shaft; 3, clamping groove; 4, clamping ring; 5, base; 6, metal wire; 7, outside diameter micrometer; 8, tester position; 81, first measurement; 82, second measurement. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The purpose of the present invention is to provide an auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire to solve the problems existing in the prior art.

[0037] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire in this embodiment, as Figures 1-9 shown, includes a wire fixing device, a vertical shaft 22, a base 5, a clamping groove 3 and a clamping ring 4; the vertical shaft 22 is arranged at the top of the base 5, the wire fixing device includes a rotating ring 11, a wire fixing rod 12 and a connecting rod 13, a plurality of rotating rings 11 are sleeved outside the vertical shaft 22, a connecting rod 13 is arranged between adjacent two rotating rings 11, a plurality of horizontally arranged wire fixing rods 12 are circumferentially distributed on the outer circumference of each rotating ring 11, a wire fixing hole 15 is arranged at one end of each wire fixing rod 12 away from the rotating ring 11, and a nut 14 is threadedly connected to the wire fixing rod 12 at the outer end of the wire fixing hole 15; a plurality of clamping grooves 3 are also arranged at the top of the base 5, and a plurality of wire fixing rods 12 on the clamping ring 4 at the bottom are respectively limited in the corresponding clamping grooves 3.

[0039] In this embodiment, a top cap 21 is further arranged at the top end of the vertical shaft 22; a clamping ring 4 is also respectively arranged at the top end and the bottom end of the vertical shaft 22, the clamping ring 4 at the top end is located between the topmost rotating ring 11 and the top cap 21, and the clamping ring 4 at the bottom end is located between the lowermost rotating ring 11 and the base 5; the radius of the clamping ring 4 is 40 - 45 mm, the wall thickness is 15 - 20 mm, and the height is 40 - 50 mm; the upper and lower clamping rings 4 are used to limit the moving position of the wire fixing device, and the clamping ring 4 at the bottom also plays a role in supporting the wire fixing device and can cooperate with the clamping groove to form two fulcrums.

[0040] In this embodiment, four rotating rings 11 are provided. Four connecting rods 13 are connected between two adjacent rotating rings 11. Four wire-fixing rods 12 are integrally connected to the outer circumference of each rotating ring 11 in the circumferential direction. The contact surface between the connecting rod 13 and the rotating ring 11 is perpendicular to and tangent to the contact surface between the wire-fixing rod 12 and the rotating ring 11.

[0041] The radius of the rotating ring 11 is 35 - 40 mm, the wall thickness is 10 - 15 mm, and the height is 20 - 30 mm; the radius of the wire-fixing rod 12 is 10 - 15 mm, and the length is 165 - 170 mm; the wire-fixing hole 15 is arranged at a position 20 - 25 mm away from the outer end of the wire-fixing rod 12. The wire-fixing hole 15 is a cylindrical wire-fixing hole 15, and the diameter of the wire-fixing hole 15 is 6 mm; threads are arranged in the range of 25 - 31 mm away from the outer end of the wire-fixing rod 12. Each wire-fixing rod 12 is equipped with a nut 14; the radius of the connecting rod 13 is 5 - 7.5 mm, and the length is 470 - 480 mm.

[0042] The radius of the vertical shaft 22 is 25 - 30 mm, and the height is 1610 - 1620 mm. The top cap 21 is a hemispherical body with a radius of 40 - 45 mm. The top cap 21 is integrally connected to the vertical shaft 22. The bottom end of the vertical shaft 22 is integrally connected to the upper surface of the base 5. The base 5 is a rectangular plate structure. The side length of the base 5 is 400 - 410 mm, and the thickness is 10 - 20 mm.

[0043] The clamping groove 3 is a cylindrical structure. The radius of the clamping groove 3 is 25 - 30 mm, and the height is 50 - 60 mm. There is a semi-circular groove with a radius of 10 - 15 mm passing through the center of the circle at the top of the clamping groove 3. The semi-circular groove is used to limit the wire-fixing rod 12.

[0044] The auxiliary device for measuring the diameter of the round conductor of the overhead wire metal wire 6 in this embodiment can fix four metal wires 6 at the same time for diameter measurement. The auxiliary device for measuring the diameter of the round conductor of the overhead wire metal wire 6 can meet the measurement of the metal wire 6 with a length range of 500 - 1600 mm.

[0045] Combined with the attached Figures 10-14 , for the convenience of description, the wire-fixing rods in the figure are labeled a, b, c, d in the counterclockwise direction; the clamping grooves are labeled A, B, C, D in the counterclockwise direction. This embodiment also provides a measurement method based on the auxiliary device for measuring the diameter of the overhead wire metal wire, including the following steps:

[0046] Device adjustment: Adjust the a rod of the wire-fixing rod 12 to the A groove of the clamping groove 3.

[0047] Install the metal wire 6: Cut the metal wire 6 to the required length and straighten it. Mark the test points with a marker pen. Pass one end of the metal wire 6 downward through the wire-fixing hole 15 of the a rod of the topmost wire-fixing rod 12 in sequence. According to the length of the metal wire 6, tighten the nuts 14 in sequence, as Figure 12 shown.

[0048] Diameter measurement. The diameter of the same cross-section is measured twice in total. The position of the tester is as Figure 13 and Figure 14 shown. When measuring for the first time, as Figure 13 shown, use an outside micrometer 7 to measure the diameter of the metal wire 6 in the vertical direction of the connecting rod of the cross-section to be measured. When measuring for the second time, as Figure 14 shown, lift the connecting rod 13 to rotate the wire fixing device 1 counterclockwise by 90° (that is, rotate the a-rod of the wire fixing rod 12 into the B groove of the clamping groove), and use an outside micrometer 7 to measure the diameter of the metal wire 6 in the direction of the connecting rod of the same cross-section to be measured.

[0049] By fixing the metal wire 6 in this embodiment on the auxiliary device for measuring the diameter of the overhead conductor metal wire to measure the diameter, the above problems in measuring the diameter of the round conductor of the overhead conductor metal wire can be effectively solved, avoiding waste of manpower and low efficiency, solving the problem that it is difficult to measure in mutually perpendicular directions, and avoiding causing data deviation of the diameter of the overhead conductor single wire and affecting the evaluation of the detection index. At the same time, based on the convenient operation and remarkable effect of the auxiliary device for measuring the diameter of the round conductor of the overhead conductor metal wire in the present invention.

[0050] The present invention uses specific examples to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire, characterized in that: It includes a wire fixing device, a vertical shaft, a base, a clamping groove and a clamping ring; the vertical shaft is arranged at the top of the base, the wire fixing device includes a rotating ring, a wire fixing rod and a connecting rod, there are multiple rotating rings, and the multiple rotating rings are sleeved outside the vertical shaft, and the connecting rod is arranged between two adjacent rotating rings, and multiple horizontally arranged wire fixing rods are circumferentially distributed on the outer circumference of each rotating ring, and a wire fixing hole is arranged at one end of each wire fixing rod away from the rotating ring, and a nut is threadedly connected to the wire fixing rod at the outer end of the wire fixing hole; multiple clamping grooves are also arranged on the top of the base, and two adjacent clamping grooves are arranged perpendicular to each other, and multiple wire fixing rods on the clamping ring at the bottom are respectively limited in the corresponding clamping grooves.

2. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 1, characterized in that: A top cap is also arranged at the top end of the vertical shaft.

3. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 2, characterized in that: A clamping ring is also respectively arranged at the top end and the bottom end of the vertical shaft. The clamping ring at the top end is located between the topmost rotating ring and the top cap, and the clamping ring at the bottom end is located between the lowermost rotating ring and the base.

4. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 3, characterized in that: The radius of the clamping ring is 40 - 45 mm, the wall thickness is 15 - 20 mm, and the height is 40 - 50 mm.

5. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 4, characterized in that: There are four rotating rings, and four connecting rods are connected between two adjacent rotating rings, and four wire fixing rods are integrally connected circumferentially on the outer circumference of each rotating ring.

6. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 5, characterized in that: The radius of the rotating ring is 35 - 40 mm, the wall thickness is 10 - 15 mm, and the height is 20 - 30 mm; the radius of the wire fixing rod is 10 - 15 mm, the length is 165 - 170 mm; the wire fixing hole is arranged at a distance of 20 - 25 mm from the outer end of the wire fixing rod, the wire fixing hole is a cylindrical wire fixing hole, and the diameter of the wire fixing hole is 6 mm; threads are arranged in the range of 25 - 31 mm from the outer end of the wire fixing rod, and each wire fixing rod is equipped with one nut; the radius of the connecting rod is 5 - 7.5 mm, and the length is 470 - 480 mm.

7. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 5, characterized in that: The radius of the vertical shaft is 25 - 30 mm, the height is 1610 - 1620 mm, the top cap is a hemispherical body with a radius of 40 - 45 mm, and the top cap is integrally connected with the vertical shaft.

8. The auxiliary device for measuring the diameter of a round conductor of an overhead conductor metal wire according to claim 1, characterized in that: The base is a rectangular plate structure, with the side length of the base being 400 - 410 mm and the thickness being 10 - 20 mm.

9. The auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire according to claim 1, characterized in that: The bottom end of the vertical shaft is integrally connected to the upper surface of the base.

10. The auxiliary device for measuring the diameter of a round conductor of an overhead wire metal wire according to claim 1, characterized in that: The clamping groove is a cylindrical structure, with the radius of the clamping groove being 25 - 30 mm and the height being 50 - 60 mm. There is a semi-circular groove with a radius of 10 - 15 mm passing through the center of the circle at the top of the clamping groove, and the semi-circular groove is used to limit the fixed wire.

Images