Mechanical horizontal steel wire rope bending fatigue testing machine and mechanical rotation driving device

A technology of bending fatigue and slewing drive, which is applied to the transmission device, gear transmission device, and the use of stable bending force to test the strength of materials, etc. It can solve the problems of large inertial impact force, lack of test data, and large space occupation, and achieve rigidity And the effect of high strength, strong versatility, and accurate swing angle

Inactive Publication Date: 2012-01-18
HENAN COAL SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The currently used steel wire rope bending fatigue test is widely used in aviation, but they are all small diameter, which cannot meet the needs of existing mining hoisting and large diameter steel wire rope testing. Some production units are only to verify whether the product is qualified or not. Use the connecting rod as the swing mechanism to realize the wire rope bending fatigue testing machine, which is noisy and takes up a lot of space. At the same time, the inertial impact force is relatively 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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  • Mechanical horizontal steel wire rope bending fatigue testing machine and mechanical rotation driving device
  • Mechanical horizontal steel wire rope bending fatigue testing machine and mechanical rotation driving device
  • Mechanical horizontal steel wire rope bending fatigue testing machine and mechanical rotation driving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment one: see figure 1 , figure 2 , Figure 6 , Figure 7 and Figure 8 , a mechanical horizontal steel wire rope bending fatigue testing machine, a rectangular foundation pit is built with concrete on the ground, a base 1 is 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.

[0041] The bases on the left and right sides of the test...

Embodiment 2

[0046] Embodiment 2: The accompanying drawings are not drawn, and the content is basically the same as Embodiment 1. The difference is that the input shaft is connected with a common motor, and the output shaft of the motor is connected with the input shaft after passing through a hardened reducer.

Embodiment 3

[0047] Embodiment three: see image 3 , Figure 4 or Figure 5 , a mechanical rotary drive device suitable for the mechanical horizontal wire rope bending fatigue testing machine described in Embodiment 1, comprising a transmission box 80, an input shaft 81 and an output shaft 83 are vertically installed on the transmission box 80, and the inner end of the output shaft 83 is installed There is a driven bevel gear 84, and the two ends of the inner side of the input shaft 81 are respectively equipped with driving bevel gears 82a and 82b, and the two driving bevel gears 82a and 82b are provided with a part of the arc surface with bevel teeth 17 ( Figure 5 Including part of the bevel teeth 17 and part of the smooth surface 18 without bevel teeth at the same time), and the two driving bevel gears 82a and 82b are symmetrically distributed to the center (that is, either of the two driving bevel gears 82a and 82b rotates 180 degrees along the axis alone After being symmetrical with...

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Abstract

The invention discloses a mechanical horizontal steel wire rope bending fatigue testing machine and a ring-shaped combination gasket. 180-degree positive and negative rotating movement of the testing machine is realized by two half umbrella-shaped bevel gears. The machine is matched with a polyester friction gasket according to the rope diameter to carry out bending fatigue test on steel wire ropes with different diameters. The circular arc radius of the polyester friction gasket is consistent with the radius of the section of the tested steel wire rope. The polyester friction gasket can be randomly disassembled and replaced from rope sleeves of a driving wheel and a testing wheel to be installed as required. A constant value load of the machine is realized by a frame structure such as a power device, a pressure sensor, a spring and the like. A heavy method of applying a load by hanging a weight, which is adopted by other like equipment, is changed. The mechanical horizontal steel wire rope bending fatigue testing machine has high accuracy. The 1:1 steel wire rope winding testing wheel is adopted. The mechanical horizontal steel wire rope bending fatigue testing machine is consistent with the actual working condition, has simple and reasonable structure, occupies a small space and has high rigidity and strength, low deformation and small overall size.

Description

[0001] technical field [0002] The invention relates to a detection technology for the bending fatigue test of a mine steel wire rope and a detection technology for a lining used for a mine hoisting wheel, in particular to a mechanical horizontal steel wire rope bending fatigue test machine and a mechanical rotary drive device. Background technique [0003] Coal mine main shaft and auxiliary shaft are the "throats" of coal mine production. Wire rope is an important part of the main shaft and auxiliary shaft hoisting equipment, which is directly related to the normal production of coal mines, personnel safety and economic operation. [0004] 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 wire rope to appear Fatigue and broken wires, in addition wear an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/20G01N3/02F16H1/20
Inventor 傅泉臻
Owner HENAN COAL SCI RES INST
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