Rope stretching test device and rope stretching method thereof

Abstract

The invention discloses a rope stretching test device and a rope stretching method thereof. The rope stretching test device comprises two rope fastening parts and a stretching part which are oppositely arranged; each rope fastening part comprises a winding body, a first clamping body, a second clamping body and a fastening piece; the winding body comprises a first face, a second face and a third face, the first face is opposite to the second face, the third face is a first annular face, the annular edge of the first end of the first annular face is connected with the edge of the first face, and the annular edge of the second end of the first annular face is connected with the edge of the second face; at least part of the first annular face is a first winding area; the first clamping body is arranged on the first face of the winding body and comprises a first clamping face; the second clamping body is arranged on the first face of the winding body and comprises a second clamping face; and the first clamping face and the second clamping face are oppositely arranged, and the first clamping body and the second clamping body are fastened through a fastener.

Description

technical field [0001] The invention belongs to the field of tensile strength testing equipment, and relates to a rope stretching test device and a rope stretching method thereof. Background technique [0002] In the process of oil extraction, metal ropes are usually used. Different oil wells and different processes usually require different rated loads (that is, tensile strength). Before construction, it is necessary to use a puller to check the selected metal ropes. A tensile test is performed to test its true tensile strength. [0003] One end of the puller is the fixed end, and the other end is the stretching end. Fix one end of the metal rope to the fixed end, fix the other end of the metal rope to the stretching end, and record the stretching force by gradually raising the stretching end , can test the tensile strength of the metal rope. [0004] In the actual fixing of both ends of the metal rope, such as figure 1 As shown, the two ends of the puller have two metal...

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Problems solved by technology

[0004] In the actual fixing of both ends of the metal rope, such as figure 1 As shown, the two ends of the puller have two metal straight bars respectively, and each end of the metal rope is clamped between the two metal straight bars respectively. In the strength test, when a large tensile force is applied to the tensile end, the end of the metal rope is easy to slip from between the two metal straight bars, resulting in the failure of the test

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