Calculation method for basket-type rope-forming machine stranded rope

A technology for stranding and forming ropes, which is applied in the field of rope calculation of basket-type rope forming machines, can solve problems such as rapid measurement of coil diameter, and achieve the effect of improving quality and prolonging service life.

Inactive Publication Date: 2019-05-31
UNIV OF SCI & TECH LIAONING
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two calculation methods of coil diameter, which are the calculation method of coil diameter based on speed detection and the direct measurement method based on external measuring components, but both are limited by the price and installation space, and it is impossible to quickly measure the coil diameter. size

Method used

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  • Calculation method for basket-type rope-forming machine stranded rope
  • Calculation method for basket-type rope-forming machine stranded rope
  • Calculation method for basket-type rope-forming machine stranded rope

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Embodiment Construction

[0043] The specific embodiments provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0044] A method for calculating the strands of a basket-type rope forming machine includes the calculation of the winding filling factor of the strands and the calculation of the winding diameter of the strands. Non-linear function relationship, so as to realize the precise control of the yarn tension during the unwinding process of the rope forming machine. It includes the following steps:

[0045] Step 1. Establish a cross-winding model of strands. There are m columns and n rows of wire ropes that are cross-wrapped. The diameter b of the strands is uniform. In an ideal case, the window length is l. 1 =m×b, window width l 2 =(n-1)×b×sin60°+b, m is the number of turns of each layer of the strands wound on the pay-off wheel, and n is the number of layers of strands arranged;

[0046] The maximum diameter of the pay-off reel is D ...

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Abstract

The invention provides a calculation method for a basket-type rope-forming machine stranded rope. The method comprises the steps of: the change of the winding diameter of a rope-making machine duringthe pay-off process is detailedly analyzed, and providing a stranded rope cross-winding model used by the rope-forming machine in the unwinding process; establishing a calculation method of filling coefficients [lambda]1 and [lambda]2 of winding of a stranded rope when the arrangement number n of the stranded rope is even and odd and a calculation method of an instant radius D(t) of the axis of apay-off wheel; and determining the filling coefficient of winding of the stranded rope and the winding diameter, namely a non-linear function relation of the instant radius of the axis of the pay-offwheel and the time to achieve the accurate control of tension of the stranded rope of the rope-forming machine in the unwinding process so as to improve the quality of the steel rope spinning and prolong the service life of the steel rope.

Description

technical field [0001] The invention relates to the technical field of strand tension control in the process of uniform speed pay-off of a steel rope forming machine, in particular to a method for calculating the strands of a basket type rope forming machine. Background technique [0002] A steel wire rope is a helical wire bundle made of several steel wires or rope strands twisted according to certain rules. Through research and analysis, it is found that the tension control of the steel wire or strand during the twisting process of the steel wire rope has an important influence on the quality of the steel wire rope. The basket type rope forming machine is the main equipment in the production of wire rope. During the process of unwinding the rope strands, the coil diameter will continue to decrease as the unwinding progresses, that is, the coil diameter and the unwinding time have a certain functional relationship. , the change of the coil diameter directly leads to the ch...

Claims

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Application Information

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IPC IPC(8): G07C3/00D07B7/02D07B7/10
Inventor 刘洪宇刘俊清
Owner UNIV OF SCI & TECH LIAONING
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