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Test box for testing low-temperature mechanical performance of splicing fitting and test method of test box

A technology for mechanical properties and splicing fittings, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, strength characteristics, etc., can solve the problem of failing to meet the low-temperature mechanical performance testing requirements of splicing fittings, and achieve convenient adjustment and operation. handy effect

Pending Publication Date: 2022-04-29
ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above methods have restrictive conditions in terms of test temperature, specimen size, specimen structure, etc., and none of them can meet the low-temperature mechanical performance test requirements of splice fittings.

Method used

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  • Test box for testing low-temperature mechanical performance of splicing fitting and test method of test box
  • Test box for testing low-temperature mechanical performance of splicing fitting and test method of test box
  • Test box for testing low-temperature mechanical performance of splicing fitting and test method of test box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0052] A test box for testing the low-temperature mechanical properties of continuous fittings, similar to Example 1, the difference is that the metal box body 4 is made of 5mm thick stainless steel plates and processed into four plates of 960mm*200mm specifications, and the test box is welded by manual argon arc welding. Three plates are welded to form the side and bottom plate of the test box, and the remaining one plate is used as a cover plate; two stainless steel plates of 200mm*200mm*5mm are welded to form the side plate of the test box. The test metal 12, that is, the maximum diameter of the shaft part of the fitting to be tested is 76mm, and a φ78.6mm circular hole is opened at a certain position on both sides of the test box, so that the test metal 12 can pass through the test box; according to the size of the holes at both ends of the side plate, customized resistance The low-temperature PTFE sealing ring is used to fix the sealing ring at the holes at both ends to re...

Embodiment 3

[0060] A test box for testing the low-temperature mechanical properties of continuous fittings, which is similar to Example 1, except that a sealing cover 41 is provided on the upper part of the metal box 4, and a flow rate adjustment component is provided on the sealing cover. Such as Figure 5 As shown, the flow rate adjustment assembly includes an adjustment box 15 , and a miniature sealing plate is movably connected to the upper part of the adjustment box 15 to avoid affecting the temperature in the metal box 4 . The adjustment box 15 is a hollow box body, and the adjustment box 15 is provided with a deceleration plate 16, one side of the deceleration plate 16 is connected to the lotus leaf connector and is movably connected to the inner wall of the adjustment box 15, and the inner wall of the adjustment box 15 is provided with a fixed block 17, and the deceleration plate 16 The other side is supported by the fixed block 17. Therefore, the speed brake 16 can be opened dire...

Embodiment 4

[0063] A test chamber for testing low-temperature mechanical properties of continuous fittings, similar to Example 3, the difference is that, as Figure 5 As shown, an adjustment plate 22 is provided on the top of the speed brake 16 . A fixing hole 18 is arranged in the middle of the deceleration plate 16 , and a rotating shaft 19 is fixedly connected in the middle of the adjusting plate 22 , the rotating shaft 19 can be inserted into the fixing hole 18 , and the adjusting plate 22 can rotate around the fixing hole 18 through the rotating shaft 19 . Adjusting plate 22 top is provided with portable post 20, can choose whether to use as required, can directly adjust plate 22 be taken out from regulating box 15 by carrying post 20.

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Abstract

The invention discloses a test box for testing the low-temperature mechanical performance of a splicing fitting and a testing method thereof.The upper end of a base is fixedly connected with a supporting column, the upper end of the supporting column is fixedly connected with a horizontal tension testing machine, two tension columns are arranged at the upper end of the horizontal tension testing machine, two fixing blocks are arranged at the upper end of the horizontal tension testing machine, and the lower end of the horizontal tension testing machine is fixedly connected with the supporting column; a transverse plate is fixedly connected between the two fixing blocks, and a lifting mechanism is arranged between the two fixing blocks and the base; a through hole is formed in the side wall of the metal box body in a penetrating mode, a sealing ring is fixedly connected to the inner wall of the through hole, testing metal is connected to the inner wall of the through hole in a sliding mode, and a thermocouple thermodetector is fixedly connected to one end of the testing metal. According to the method, the metal to be tested penetrates through the through hole, then the through hole is sealed, the metal to be tested can be tested, operation is convenient, tensile strength testing at the temperature of-40 DEG C and-50 DEG C can be conducted after testing at the temperature of-30 DEG C, and the low-temperature mechanical performance testing of the metal can be continued.

Description

technical field [0001] The invention relates to the technical field of connecting fittings testing, in particular to a test box for testing the low-temperature mechanical properties of connecting fittings and a testing method thereof. Background technique [0002] Connecting fittings are one of the important parts of power transmission and distribution lines, and are the key parts to realize the connection between wires and complete uninterrupted power transmission. The splicing fitting not only bears all the tension of the conductor / ground wire, but also acts as a conductor to carry current. Therefore, for splicing fittings, in order to meet certain grip and bearing requirements, the manufacturing materials must have sufficient strength. With the continuous expansion of the scale of my country's power grid construction, the number of lines passing through extreme environments has increased year by year. Under the combined effect of low temperature and continuous strong win...

Claims

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Application Information

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IPC IPC(8): G01N3/18G01N3/02
CPCG01N3/18G01N3/02G01N2203/0003G01N2203/0017G01N2203/006G01N2203/0228G01N2203/0694
Inventor 党乐佟敏王栋王博陈忠源崔亚茹林阿丽刘慧
Owner ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER
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