Tubular busbar resistivity test clamp

Abstract

The utility model belongs to the technical field of tubular busbar detection, and particularly relates to a tubular busbar resistivity test fixture which is characterized by comprising a base, a first outer clamping seat, a first inner clamping seat, a second outer clamping seat and a second inner clamping seat, the first inner clamping seat and the second inner clamping seat are arranged in a bilateral symmetry mode, and the first outer clamping seat and the second outer clamping seat are arranged on the outer side of the first inner clamping seat and the outer side of the second inner clamping seat. The left and right are symmetrically arranged; a tubular bus steel tube is horizontally clamped among the first outer clamping seat, the second outer clamping seat, the first inner clamping seat and the second inner clamping seat, copper clamping plates are arranged on the first outer clamping seat, the second outer clamping seat, the first inner clamping seat and the second inner clamping seat, the upper copper clamping plate and the lower copper clamping plate are respectively provided with a binding post, and the binding posts are respectively connected with an output end electrode of a loading direct-current resistance tester. Compared with the prior art, the tubular bus resistivity detector has the beneficial effects that a customized structure is adopted, so that the tubular bus resistivity detector can conveniently and quickly detect the resistivity of tubular buses of various specifications, is convenient to operate, has inclusivity for tubular buses of various diameters, and simultaneously improves the operation efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pipe bus detection technical field, especially relates to a pipe bus resistivity test fixture. BACKGROUND

[0002] Pipe bus is one of the key equipment (materials) in power transmission and transformation system, and plays a vital role in the safe and reliable operation of power transmission and transformation system and power equipment. It is mainly used in the conductor connection between power grid transmission conductor and transformer substation, jumper in transmission line, connecting conductor in power equipment and current-carrying conductor in large-current DC deicing device. It is a new conductor to replace traditional rectangular, grooved and rod-shaped busbars and flexible conductors. It is one of the key equipment (materials) in power transmission and transformation system, and plays a vital role in the safe and reliable operation of power transmission and transformation system and power equipment. The pipe bus product is a hollow tubular structure, with an outer diameter size of φ60mm to φ300mm, a wall thickness of 3mm to 12mm, and a single length of up to 15 meters.

[0003] Due to the particularity of pipe bus, performance detection needs to be carried out regularly to ensure its normal function. The conventional detection forms include: 1. Conductive performance test: pipe bus usually needs to withstand large current, so the conductive performance is the most basic quality index. The conductive performance test can use low-frequency bridge or high-frequency bridge and other instruments to test the electrical properties such as resistance and loop resistance of pipe bus. 2. Mechanical performance test: pipe bus needs to withstand certain mechanical pressure during turnover, connection, bending and stress. The mechanical performance test usually includes bending test, tensile test, shear test, etc. 3. Thermal stability performance test: pipe bus needs to withstand high temperature, low temperature, humidity and other environmental conditions during long-term operation. Therefore, thermal stability performance test is very important, mainly including insulation resistance test, heat resistance test, aging resistance test, etc. 4. Grounding resistance test: the grounding resistance of pipe bus is an important index of safety. The grounding resistance test requires regular detection of the grounding resistance of pipe bus to ensure that it meets the national standards and the requirements of the power industry. Pipe bus resistivity test is an important test in power system, which is used to evaluate the performance of insulating pipe for electrical breakdown and electrical insulation.

[0004] At present, there is no suitable standard test fixture in the industry that is convenient to operate and has high reliability. For large quantities of pipe bus detection operation, it is difficult to complete efficiently, and improvement is urgently needed. Utility model content

[0005] The utility model discloses a pipe bus resistivity test fixture which overcomes the shortcomings of the prior art, adopts a customized structure, can conveniently and quickly detect the resistivity of the pipe bus, is convenient to operate, and can quickly complete the detection of multiple groups of data of each pipe bus without frequently disassembling the electrode connection and ground wire of the direct-current resistance tester, thereby reducing labor intensity and improving operation efficiency for the detection of a large number of pipe buses.

[0006] To achieve the above object, the utility model discloses the following technical scheme:

[0007] A pipe bus resistivity test fixture, comprising a base, an outer clamping seat one, an inner clamping seat one, an outer clamping seat two and an inner clamping seat two, the inner clamping seat one and the inner clamping seat two are symmetrically arranged, the outer clamping seat one and the outer clamping seat two are arranged on the outer side of the inner clamping seat one and the inner clamping seat two and are symmetrically arranged; the pipe bus steel pipe is horizontally clamped between the outer clamping seat one, the outer clamping seat two, the inner clamping seat one and the inner clamping seat two, and copper clamping plates are arranged on the outer clamping seat one, the outer clamping seat two, the inner clamping seat one and the inner clamping seat two; the upper copper clamping plate and the lower copper clamping plate are respectively provided with terminal posts, and the terminal posts are respectively connected with the output electrode of the direct-current resistance tester.

[0008] Further, the inner clamping seat one and the inner clamping seat two are of the same structure and comprise an insulating seat one, a support, a lifting screw one, a nut sleeve one, an inner upper copper clamping plate and an inner lower copper clamping plate; the support is connected to the insulating seat one, the lifting screw one is arranged in the support, the nut sleeve one is engaged with the lifting screw one, the nut sleeve one is connected with the inner upper copper clamping plate, the inner lower copper clamping plate opposite to the inner upper copper clamping plate is fixedly installed on the insulating seat one, the cooperation surface of the inner upper copper clamping plate and the inner lower copper clamping plate is provided with V-shaped notches in opposite directions, and the V-shaped notches are wrapped around the outer diameter of the pipe bus after being combined.

[0009] Further, the outer clamping seat one and the outer clamping seat two are of the same structure and comprise an insulating seat two, a middle sliding plate, a top plate, a guide column, a lifting screw two, a nut sleeve two, an outer upper copper clamping plate and an outer lower copper clamping plate; the insulating seat two is connected to the top plate through the left and right guide columns; the middle sliding plate is movably connected to the guide column; the lifting screw two is arranged on the top plate; the bottom end of the lifting screw two is movably connected to the middle sliding plate through a hinge seat; the outer upper copper clamping plate is connected to the bottom of the middle sliding plate; the outer lower copper clamping plate opposite to the outer upper copper clamping plate is fixedly installed on the insulating seat two; the cooperation surface of the outer upper copper clamping plate and the outer lower copper clamping plate is provided with V-shaped notches in opposite directions, and the V-shaped notches are wrapped around the outer diameter of the pipe bus after being combined.

[0010] Further, the inner upper copper clamping plate and the inner lower copper clamping plate are of a single clamping plate structure; and the outer upper copper clamping plate and the outer lower copper clamping plate are of a single clamping plate structure or a multiple clamping plate structure.

[0011] Further, the V-shaped notches on the inner upper copper clamping plate and the inner lower copper clamping plate are provided with blade openings.

[0012] Further, the base is made of aluminum profile, both ends are provided with nylon end cover; the base is provided with scale, and the minimum scale value is 1mm.

[0013] Further, the outer diameter of the pipe bus steel pipe ranges from 100mm to 250mm.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1) adopting the customized structure, so that the resistivity of the pipe bus of multiple specifications can be conveniently and quickly detected, the operation is convenient, and the pipe bus of multiple diameters is inclusive;

[0016] 2) the utility model clamp can realize the detection of the pipe bus in the same batch under the same condition, data is convenient to compare and count, and the quality of the pipe bus in the same batch can be effectively evaluated;

[0017] 3) the electrode connection and ground wire of the direct current resistance tester do not need to be frequently disassembled, so that the multiple group data detection of each pipe bus can be quickly completed, the labor intensity can be reduced for the pipe bus detection demand in large quantities, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the three-dimensional structure schematic diagram of the utility model embodiment;

[0019] Figure 2 is the front view of the utility model embodiment;

[0020] Figure 3 is Figure 2 the left view of the utility model embodiment;

[0021] Figure 4 is Figure 2 the local enlarged view of I in the utility model embodiment;

[0022] Figure 5 is Figure 4 the section view along A-A line in the utility model embodiment;

[0023] Figure 6 is Figure 2 the local enlarged view of II in the utility model embodiment;

[0024] Figure 7 is Figure 6 the section view along B-B line in the utility model embodiment;

[0025] Figure 8 is Figure 2 the local enlarged view of III in the utility model embodiment;

[0026] Figure 9 is Figure 8 the section view along C-C line in the utility model embodiment;

[0027] Figure 10 is Figure 2 is

[0028] Figure 11 is Figure 10 is

[0029] In the figure: 1-base, 2-outer clamping seat one, 3-inner clamping seat one, 4-inner clamping seat two, 5-outer clamping seat two, 6-tube bus, 8-insulating seat one, 9-bracket, 10-lifting screw one, 11-nut sleeve one, 12-inner upper copper clamp plate, 13-inner lower copper clamp plate, 14-insulating seat two, 15-intermediate slide plate, 16-top plate, 17-guide column, 18-lifting screw two, 19-nut sleeve two, 20-outer upper copper clamp plate, 21-outer lower copper clamp plate, 22-hinge seat, 23-wiring post, 24-nylon end cover, 25-hand wheel, 26-rolling ball. DETAILED DESCRIPTION

[0030] The technical solutions of the utility model will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are some of the embodiments of the utility model, but not all the embodiments.

[0031] In order to make the technical solutions in the specific embodiments or prior art clearer, the specific embodiments needed in the description of the specific embodiments or prior art will be introduced simply. Obviously, the specific embodiments described below are some of the embodiments of the utility model, and other specific embodiments can be obtained by those skilled in the art without creative labor.

[0032] The components of the embodiments of the utility model described and shown in the specific embodiments can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the specific embodiments is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0033] See Figures 1-11is a kind of pipe bus resistivity test fixture embodiment structural schematic diagram of the utility model, including base 1, outer clamp seat one 2, inner clamp seat one 3, outer clamp seat two 5 and inner clamp seat two 4, inner clamp seat one 3 and inner clamp seat two 4 are symmetrically arranged, outer clamp seat one 2 and outer clamp seat two 5 are arranged on the outside of inner clamp seat one 3 and inner clamp seat two 4, and symmetrically arranged;Pipe bus 6 steel pipe is horizontally clamped between outer clamp seat one 2, outer clamp seat two 5, inner clamp seat one 3 and inner clamp seat two 4, and copper clamp plate is provided on outer clamp seat one 2, outer clamp seat two 5, inner clamp seat one 3 and inner clamp seat two 4, and the upper copper clamp plate and the lower copper clamp plate are respectively provided with terminal post 23, and terminal post 23 is respectively connected with the output electrode of loading direct-current resistance tester.The rated current of direct-current resistance tester is 30A, and the rated voltage is 100V.

[0034] Inner clamp seat one 3 and inner clamp seat two 4 are the same structure, including insulating seat one 8, support 9, lifting screw one 10, nut sleeve one 11, inner upper copper clamp plate 12 and inner lower copper clamp plate 13, support 9 is connected on insulating seat one 8, lifting screw one 10 is arranged in support 9, nut sleeve one 11 is engaged with lifting screw one 10, nut sleeve one 11 is connected with inner upper copper clamp plate 12, inner lower copper clamp plate 13 opposite to inner upper copper clamp plate 12 is fixedly installed on insulating seat one 8, the matching surface of inner upper copper clamp plate 12 and inner lower copper clamp plate 13 is provided with V-shaped gap in opposite directions, V-shaped gap is spliced and is clamped on the outer diameter of pipe bus 6, and hand wheel 25 is connected to the top of lifting screw one 10.Blade is provided on the V-shaped gap of inner upper copper clamp plate 12 and inner lower copper clamp plate 13.

[0035] Outer clamp seat one 2 and outer clamp seat two 5 are the same structure, including insulating seat two 14, middle sliding plate 15, top plate 16, guide column 17, lifting screw two 18, nut sleeve two 19, outer upper copper clamp plate 20 and outer lower copper clamp plate 21, insulating seat two 14 is connected with top plate 16 by two guide columns 17, middle sliding plate 15 is movably connected on guide column 17, lifting screw two 18 is arranged on top plate 16, the bottom end of lifting screw two 18 is movably connected with middle sliding plate 15 through hinge base 22, and outer upper copper clamp plate 20 is connected to the bottom of middle sliding plate 15, and outer lower copper clamp plate 21 opposite to outer upper copper clamp plate 20 is fixedly installed on insulating seat two 14;The matching surface of outer upper copper clamp plate 20 and outer lower copper clamp plate 21 is provided with V-shaped gap in opposite directions, and V-shaped gap is spliced and is clamped on the outer diameter of pipe bus 6.Hand wheel is connected to the top of lifting screw two 18.Ball 26 is arranged in hinge base 22, so that lifting screw two 18 can rotate flexibly, and middle sliding plate 15 is controlled to lift.

[0036] In the embodiment, the inner upper copper clamp plate 12 and the inner lower copper clamp plate 13 are single-clamp plate structures, and can collect voltage signals of test points; the outer upper copper clamp plate 20 and the outer lower copper clamp plate 21 are multi-clamp plate structures, and provide reliable clamping force to inject test current to the conductor. The utility model discloses the test fixture is suitable for the outer diameter range of the pipe bus steel pipe is 100-250mm.

[0037] The base 1 is made of aluminum profile, and is provided with a T-shaped groove; the outer clamping seat one 2, the inner clamping seat one 3, the outer clamping seat two 5 and the inner clamping seat two 4 are connected with the base 1 through T-shaped bolts, and are convenient to move. The base 1 is provided with nylon end covers 24 at both ends to prevent dust; and the base 1 is provided with scales, and the minimum scale value is 1mm, so that the distance between the inner clamping seat one 3 and the inner clamping seat two 4 can be determined, and the resistivity measurement can be completed.

[0038] The utility model discloses the test fixture uses steps as follows: first, the four lifting lead screws of the busbar test tool are all shaken to the maximum, then the pipe bus steel pipe of the test is penetrated through the whole tool from the tool side, first, the two outer lead screws are shaken down to make the clamp and the pipe bus steel pipe closely contact, then the two inner lifting lead screws are shaken down to make the clamp and the pipe bus steel pipe closely contact. After the pipe bus steel pipe of the test is fixed, the current line of the direct current resistance tester is connected on the wiring screw of the two outer clamping plates, the voltage signal line of the direct current resistance tester is connected on the two inner copper clamp plates respectively, and the direct current resistance tester can be started to carry out the resistivity test.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe busbar resistivity test fixture characterized by, The base, the outer clamping seat one, the inner clamping seat one, the outer clamping seat two and the inner clamping seat two are symmetrically arranged, the outer clamping seat one and the outer clamping seat two are arranged outside the inner clamping seat one and the inner clamping seat two, and the outer clamping seat one and the outer clamping seat two are symmetrically arranged; the tubular bus steel pipe is horizontally clamped between the outer clamping seat one, the outer clamping seat two, the inner clamping seat one and the inner clamping seat two, and copper clamping plates are arranged on the outer clamping seat one, the outer clamping seat two, the inner clamping seat one and the inner clamping seat two; the upper copper clamping plate and the lower copper clamping plate are respectively provided with a terminal post, and the terminal post is connected with an output electrode of a direct current resistance tester.

2. A pipe bus resistivity test fixture according to claim 1, wherein, The inner clamping seat one and the inner clamping seat two are the same in structure and comprise an insulating seat one, a support, a lifting screw one, a nut sleeve one, an inner upper copper clamping plate and an inner lower copper clamping plate; the support is connected to the insulating seat one, the lifting screw one is arranged in the support, the nut sleeve one is engaged with the lifting screw one, the nut sleeve one is connected with the inner upper copper clamping plate, the inner lower copper clamping plate opposite to the inner upper copper clamping plate is fixedly installed on the insulating seat one, and the cooperation surfaces of the inner upper copper clamping plate and the inner lower copper clamping plate are provided with V-shaped notches in opposite directions, which are wrapped around the outer diameter of the tubular bus after being combined.

3. A pipe bus resistivity test fixture according to claim 2, wherein, The outer clamping seat one and the outer clamping seat two are the same in structure and comprise an insulating seat two, a middle sliding plate, a top plate, a guide column, a lifting screw two, a nut sleeve two, an outer upper copper clamping plate and an outer lower copper clamping plate; the insulating seat two is connected to the top plate through the left and right guide columns, the middle sliding plate is movably connected to the guide column, the lifting screw two is arranged on the top plate, the bottom end of the lifting screw two is movably connected to the middle sliding plate through a hinge seat, the outer upper copper clamping plate is connected to the bottom of the middle sliding plate, and the outer lower copper clamping plate opposite to the outer upper copper clamping plate is fixedly installed on the insulating seat two; the cooperation surfaces of the outer upper copper clamping plate and the outer lower copper clamping plate are provided with V-shaped notches in opposite directions, which are wrapped around the outer diameter of the tubular bus after being combined.

4. A pipe bus resistivity test fixture according to claim 3, wherein, The inner upper copper clamping plate and the inner lower copper clamping plate are single clamping plate structures; and the outer upper copper clamping plate and the outer lower copper clamping plate are single clamping plate or multiple clamping plate structures.

5. A pipe bus resistivity test fixture according to claim 4, wherein, Blades are arranged at the V-shaped notches of the inner upper copper clamping plate and the inner lower copper clamping plate.

6. A pipe bus resistivity test fixture according to claim 1 wherein, The base is made of aluminum profile, and nylon end covers are arranged at both ends of the base; a scale is arranged on the base, and the minimum scale value is 1 mm.

7. A pipe bus resistivity test fixture as defined in claim 1 wherein, The outer diameter of the tubular bus steel pipe ranges from 100 mm to 250 mm.

Images