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Hydraulic horizontal steel wire rope bending fatigue testing machine and annular combined gasket

A bending fatigue and steel wire rope technology, which is applied in the field of hydraulic horizontal steel wire rope bending fatigue testing machine and annular combined liner, can solve the problems of lack of test data, large inertial impact force, unsuitable for national conditions, etc., and achieve strong versatility, rigidity and The effect of high intensity and wide rotation frequency range

Active Publication Date: 2012-01-04
河南省煤科院检测技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The currently used steel wire rope bending fatigue test is widely used in aviation, but all of them are of small diameter, which cannot meet the needs of existing mining hoisting and large-diameter steel wire rope testing. Some production units are just to verify whether the product is qualified or not. Equipped with a connecting rod as a swing mechanism to test the wire rope bending fatigue test machine, the noise is large, the space is also large, and the inertial impact force is also large, which wastes energy.
There are oscillating bending fatigue testing machines and planetary bending fatigue testing machines in foreign countries. On the one hand, the domestic technology is immature, and on the other hand, there is a lack of relevant test data, which is not suitable for the national conditions.

Method used

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  • Hydraulic horizontal steel wire rope bending fatigue testing machine and annular combined gasket
  • Hydraulic horizontal steel wire rope bending fatigue testing machine and annular combined gasket
  • Hydraulic horizontal steel wire rope bending fatigue testing machine and annular combined gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment one: see figure 1 , figure 2 , image 3 , Figure 12 and Figure 13 , a hydraulic horizontal steel wire rope bending fatigue testing machine, a rectangular foundation pit is built with concrete on the ground, a base 1 is respectively fixed around the rectangular pit groove, a bearing frame 2 is fixed at one end of the base 1, and a bearing frame is fixed 2 is equipped with a driving wheel 3, the other end of the base 1 is provided with a movable bearing frame 4 that can translate left and right, an experimental wheel 5 is installed on the movable bearing frame 4, the diameter of the driving wheel 3 is equal to that of the experimental wheel 4, and the driving wheel 3 Liners are respectively sleeved in the grooves of the test wheel and the test wheel 4. Parts of the two wheels go deep into the pit, so that the center of gravity and height of the whole testing machine are lowered, which is stable and reliable.

[0045] The bases on the left and right side...

Embodiment 2

[0052] Embodiment two: see Figure 4-Figure 9 , a ring-shaped combined liner suitable for the hydraulic horizontal steel wire rope bending fatigue testing machine described in Embodiment 1. A plurality of arc-shaped single-block liners 19 are respectively embedded in the peripheral edges of the driving wheel and the test wheel to form a ring-shaped liner .

[0053] The circumference of the driving wheel 3 and the experiment wheel 5 is provided with an annular groove 22, and at the same time, one side of the driving wheel 3 and the experiment wheel 5 is provided with an inlet 25 and a plugging 26 communicating with the groove 22. Bolts with nuts (i.e. stop bolts) are used, and each single-block liner 19 enters the annular groove from the inlet respectively to form an annular combined liner.

[0054] Flanges 24 are provided on both sides of each single-block liner 19 , and concave flanges 23 matching the flanges are provided on both side walls of the annular groove 22 of the dr...

Embodiment 3

[0057] Embodiment three: the accompanying drawings are not drawn, and the content is basically the same as that of embodiment two, and the similarities will not be repeated. The difference is that the shape of the single-block liner 19 is different, and no flange and concave edge matching structure are provided, but A retaining edge 27 is provided at the annular groove on the edge of the driving wheel or the driven wheel.

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Abstract

The invention discloses a hydraulic horizontal steel wire rope bending fatigue testing machine and an annular combined gasket. A driving wheel is fixedly arranged at one end of a base of the fatigue testing machine; an experiment wheel is movably arranged at the other end of the base; a rotating shaft of the driving wheel is connected with an output shaft of a rotary driving device through a coupler; an input shaft of the rotary driving device is connected with a power machine; and the power machine is also connected with a photoelectric counter and an electric cabinet. Polyester friction gaskets of the machine are matched according to rope diameters; bending fatigue tests of steel wire ropes with different diameters are carried out; the arc radii of the polyester friction gaskets are matched with the section radii of tested steel wire ropes; and the steel wire ropes can be freely replaced and arranged in rope slings of the driving wheel and the experiment wheel according to the requirements. Fixed-value loads of the machine are realized by frame structures of a power device, a pressure sensor, a spring and the like, and the method is different from a cumbersome method for applying the load by hanging a weight, which is adopted by other similar equipment.

Description

[0001] technical field [0002] The invention relates to a detection technology for the bending fatigue test of the mine steel wire rope and a detection technology for the lining used for the mine hoisting wheel, in particular to a hydraulic horizontal steel wire rope bending fatigue testing machine and an annular combined liner. Background technique [0003] Like other metal components, the steel wire rope is subjected to various stresses during work, such as static stress, dynamic stress, bending stress, torsional stress, contact stress, extrusion and twisting stress, etc. The repeated action of these stresses will cause the steel wire rope to appear Fatigue and broken wires, wear and corrosion are also important aspects of accelerating broken wires, and in serious cases, even a major accident of the whole rope breaking will occur. It is precisely because the damage degree and carrying capacity of steel wire ropes are directly related to the safety of human life and proper...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N3/20G01N3/02F15B15/18
CPCG01N3/20G01N2203/028F15B15/18
Inventor 傅泉臻
Owner 河南省煤科院检测技术有限公司
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