Copper alloy plane stress fracture testing device for elevator safety tongs
A technology of plane stress and testing device, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of beryllium bronze alloy dissipation, affecting the detection of beryllium bronze alloy, etc., and achieve the effect of reducing leakage, simple structure and reducing cooling time.
Active Publication Date: 2021-10-29
河南省特种设备安全检测研究院
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Problems solved by technology
[0003] When testing the elongation of beryllium copper alloy, it is necessary to carry out plane stress fracture test on the heat treated beryllium bronze alloy. To check the plane stress fracture test of beryllium copper alloy, it is necessary to observe the toughness of the alloy at different temperatures and under different aging conditions. During the alloying process, the heat of the beryllium bronze alloy will be dissipated in a large amount, which will affect the detection of the corresponding beryllium bronze alloy. Only then can we understand that heat treatment with different aging can improve the quality of the beryllium bronze alloy and obtain more accurate and reliable test data.
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[0033] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood ...
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The invention discloses a copper alloy plane stress fracture testing device for elevator safety tongs, which comprises a connecting seat. A dynamometer is mounted at one corner of the connecting seat, a contact switch is arranged on the lower side table surface of the dynamometer, and an automatic tightening mechanism is mounted on the upper side of the inner wall of the dynamometer; the electric rotating platform is located in the middle of the connecting seat, a transmission ring is mounted on the electric rotating platform, and a copper alloy mounting mechanism is arranged at the edge of the transmission ring; and a heating bin is located on the side edge of the connecting seat. By arranging a copper alloy mounting mechanism and a mounting threaded ring, the copper alloy can be mounted on the equipment, and meanwhile, under the action of a connecting block, the copper alloy rotates while rotating a transmission ring, so that a copper alloy body can flexibly move between a dynamometer and a heating bin; and the rapid stress fracture test after different aging heat treatment is realized, the cooling time of the copper alloy is shortened, and the accuracy of the detection structure is ensured.
Description
technical field [0001] The invention relates to the technical field of elevator safety, in particular to a copper alloy plane stress fracture test device for elevator safety gear. Background technique [0002] Copper alloy refers to beryllium bronze alloy, and beryllium bronze alloy is an important raw material for the production of elevator safety gear. A large part of the reliability of the elevator depends on copper alloy. Beryllium bronze alloy is a typical precipitation-strengthened copper alloy. In addition to having high strength In addition to the advantages of hardness, elasticity, fatigue resistance, etc., it also has excellent electrical and thermal conductivity, wear resistance and corrosion resistance, and is widely used in aerospace, electronic communications, machinery manufacturing, marine engineering and other fields; especially as a service condition is relatively harsh The key materials used in the fields of elevator safety gear, amorphous strips, continuo...
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IPC IPC(8): G01N3/00G01N3/02G01N3/04
CPCG01N3/00G01N3/02G01N3/04
Inventor 郭鹏伟薛建王磊葛颂刘影李锦锦姚望梁蒙王晨曦宋晓辉张俊娜
Owner 河南省特种设备安全检测研究院