Fixture for tension test of aluminum stranded conductors of power transmission towers
A technology of tensile test and aluminum stranded wire, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems that affect the accuracy of the experiment, the huge difference in mechanical properties, and the inability to judge the damage state of the steel wire, etc., and achieve accurate test results and tensile strength. The effect of accurate tensile test results
Pending Publication Date: 2018-02-02
ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER +3
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Problems solved by technology
However, due to the huge difference in the mechanical properties of steel and aluminum materials, when the aluminum strand is broken, the strength of the steel wire has not been fully exerted, so it is impossible to judge the damage state of the steel wire, which affects the accuracy of the experiment. Therefore, it is necessary to separately analyze the steel strand and the Aluminum Stranded Wire for Tensile Test
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[0021] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.
[0022] Such as figure 1 , figure 2 and image 3 As shown, a tensile test fixture for an aluminum stranded wire of a power transmission tower includes a steel core wire simulation part 1, a clamping sleeve 2 and a clamping seat 3 which are sequentially sleeved from the inside to the outside, and the steel core wire simulation part 1 and clamp An annular cavity is formed between the tight sleeves 2, and the clamping sleeve 2 is closely attached to the clamping seat 3, and the clamping seat 3 is connected with a tension joint 4.
[0023] The clamping seat 3 is provided with a threading through hole 3a, the threading through hole 3a is a circular frustum-shaped opening, and the clamping seat 3 at the large diameter end of the threading through hole 3a is provided with an extension. A joint screw hole 3b is provided corresponding to the threading through...
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The invention discloses a fixture for tension test of aluminum stranded conductors of power transmission towers; the fixture comprises a steel core simulator, a clamping sleeve and a clamping seat which are nested sequentially from inside to outside, a circular cavity for aluminum stranded conductor winding is formed between the steel core simulator and the clamping sleeve, and the clamping sleeveis attached tightly to the clamping seat. The fixture tension test of aluminum stranded conductors of power transmission towers according to the invention has the advantages that a steel core of an aluminum stranded conductor is replaced with the steel core simulator, the tension test of aluminum stranded conductors is unaffected, the tension test of the outer aluminum stranded conductors for thesteel-core aluminum stranded conductors can be more really simulated, and result accuracy is ensured for the tension test of the aluminum stranded conductors.
Description
technical field [0001] The invention relates to a tensile test device for an aluminum stranded wire for power transmission, in particular to a tensile test fixture for an aluminum stranded wire for a power transmission tower. Background technique [0002] The transmission tower wire (steel-cored aluminum stranded wire) is a composite component composed of two parts: the inner core wound steel stranded wire and the outer layer wound aluminum stranded wire. When conducting tensile tests on wires to determine their mechanical properties, it is common practice at this stage to directly perform tensile tests on the wires. However, due to the huge difference in the mechanical properties of steel and aluminum materials, when the aluminum strand is broken, the strength of the steel wire has not been fully exerted, so it is impossible to judge the damage state of the steel wire, which affects the accuracy of the experiment. Therefore, it is necessary to separately analyze the steel s...
Claims
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IPC IPC(8): G01N3/04
CPCG01N3/04
Inventor 游溢何成晏致涛裘哲王欣欣赵建平刘阳崔晓东徐凯李勇杰马勤勇李伟刘欣鹏庄文兵王建
Owner ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER