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Tower crane connecting piece fatigue endurance test device and test method

A test device, fatigue durability technology, applied in the field of tower cranes, can solve problems such as large deviation between theoretical calculation and actual, strong subjectivity of finite element simulation, and inability to guarantee the factory quality of tower crane connectors, etc., to achieve quantitative and qualitative analysis, The structure is simple and the effect of reducing the selected specifications

Pending Publication Date: 2021-06-18
HUNAN SANY TOWER CRANE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the research on the fatigue durability of tower crane connectors is mainly based on finite element simulation or theoretical calculation, but the subjectivity of finite element simulation is strong, the deviation between theoretical calculation and actual is large, and the factory quality of tower crane connectors cannot be guaranteed

Method used

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  • Tower crane connecting piece fatigue endurance test device and test method
  • Tower crane connecting piece fatigue endurance test device and test method
  • Tower crane connecting piece fatigue endurance test device and test method

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the invention clearer, the technical solutions in the invention will be clearly described below in conjunction with the accompanying drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Example. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the invention.

[0037] In the description of the embodiments of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "up", "down", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention. and simplified descriptions, rather than indicating or implying that the device or element referre...

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Abstract

The invention provides a tower crane connecting piece fatigue endurance test device and a test method. The tower crane connecting piece fatigue endurance test device comprises a base, a stand column, a telescopic driving piece and a lever, wherein the two ends of the lever are hinged to the top end of the stand column and the top end of the telescopic driving piece correspondingly; the bottom end of the stand column and the bottom end of the telescopic driving piece are fixed to the two ends of the base correspondingly; the middle of the lever and the middle of the base are hinged to the two ends of a tower crane connecting piece respectively; a first stress detection piece is arranged on a pin shaft between two connectors of the tower crane connecting piece; and a second stress detection piece is arranged on the contact face of the two connectors. The selection specification of the telescopic driving piece can be reduced, the cost is reduced, the value range of the load applied to the tower crane connecting piece can be expanded, and the test requirements of tower crane connecting pieces with different specifications can be met.

Description

technical field [0001] The invention relates to the technical field of tower cranes, in particular to a fatigue durability test device and a test method for connecting parts of a tower crane. Background technique [0002] Tower crane, also known as tower crane or tower crane, is a kind of lifting equipment used in building construction. The tower crane connector bears the full weight of the tower crane jib and the hoisting load. The tower crane connector usually includes two square tubes, each of which is fixed with a connector at both ends, and the connection of one of the square tubes The head is hinged with the connecting head of another square pipe through a pin. [0003] At present, research on the fatigue durability of tower crane connectors is mainly based on finite element simulation or theoretical calculation, but finite element simulation is highly subjective, and the theoretical calculation and actual deviation are large, which cannot guarantee the factory qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 李阳胡谦谦王道
Owner HUNAN SANY TOWER CRANE CO LTD
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