A friction loss experimental device and method under multi-directional vibration of steel wire rope and liner
A technology of friction loss and experimental equipment, which is applied in the field of mining machinery and equipment, can solve the problems of not considering the lateral vibration, the inability to adjust the longitudinal excitation, and the difference, and achieve the effect of comprehensive vibration mode, improved reliability and stability, and simple parameter adjustment
Active Publication Date: 2021-08-24
XUZHOU NORMAL UNIVERSITY
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Problems solved by technology
[0004] Chinese patent (CN105910982B) announced a method for measuring the friction coefficient of hoist friction lining based on the arc surface method, and Chinese patent (CN103940733B) announced a micro-slip test platform for hoist friction lining. The sliding friction test between the steel wire rope and the liner at the local wrap angle is different from the actual whole wrap angle transmission, and the dynamic load considered is only the dynamic load of the longitudinal tension of the steel wire rope, and does not consider the more significant impact on the friction transmission. the lateral vibration;
[0005] Chinese patent (CN104122198B) discloses a friction pad-lifting wire rope dynamic friction transmission test device and method, which only realizes the measurement of the vibration of the wire rope in each direction, and its longitudinal excitation cannot be adjusted, and the impact of vibration on the limit friction cannot be measured. actual impact of force
[0006] The problems existing in the prior art mainly include: (1) It is impossible to accurately measure the boundary characteristics from static friction to sliding friction and the limit friction force of the enclosing angle; Study on Vibration-Friction Parameters with Pad
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Embodiment 2
[0086] The difference between the experimental device of this embodiment and the first embodiment is that the predetermined excitation frequency is 25 Hz, the weight of the counterweight 14 is 1000 kg, and the predetermined excitation amplitude is 0.5 mm.
Embodiment 3
[0088] The difference between the experimental device of this embodiment and the second embodiment is that the predetermined excitation frequency is 50 Hz, the weight of the counterweight 14 is 2000 kg, and the predetermined excitation amplitude is 2 mm.
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The invention relates to the field of mining machinery and equipment, in particular to a friction loss experimental device and method under multi-directional vibration of a steel wire rope and a liner, comprising a base, a frame fixed on the upper part of the base, and a friction mechanism fixed on the frame; the friction mechanism A steel wire rope is wound on the top; a friction liner is provided on the contact surface of the friction mechanism and the steel wire rope; one end of the steel wire rope is fixedly connected with a counterweight mechanism; The measuring mechanism is used to measure the limit friction force between the steel wire rope and the friction lining; the excitation mechanism and the measuring mechanism are controlled by the control system, and the present invention can realize the friction force measurement under different steel wire rope vibrations, and analyze different amplitudes, directions, positions and different preloads The rope-lining limit friction loss under force.
Description
technical field [0001] The invention relates to the field of mining machinery and equipment, in particular to a friction loss experimental device and method under multi-directional vibration of a steel wire rope and a liner. Background technique [0002] The multi-rope friction hoist is more and more used in the mine hoisting of deep and ultra-deep mines due to its significant advantages such as large lifting capacity, high safety factor, low power consumption, small machine size, and low cost. Friction lifting relies on the friction force between the wire rope and the liner to transmit the force. The friction liner and the wire rope form a dual friction pair. The friction coefficient between the two directly affects the lifting capacity, work efficiency and safety of the hoist. The vibration of a single component has a definite frictional weakening effect on the friction pair of two friction pairs of sliding friction, and the magnitude of the friction reduction effect is re...
Claims
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IPC IPC(8): G01M13/027G01M13/028G01M13/023G01M7/02G01N3/02G01N3/56
CPCG01M7/022G01M13/023G01M13/027G01M13/028G01N3/02G01N3/56
Inventor 郭永波杨琴张德坤马皖王崧全张莹莹郑强国杨浩任露杨国标
Owner XUZHOU NORMAL UNIVERSITY