Cage anti-falling speed reduction buffer device

Abstract

The invention relates to a cage anti-falling speed reduction buffer device. The cage anti-falling speed reduction buffer device is composed of an electromagnetic induction speed reduction device and an auxiliary inflatable buffer device; an aluminum plate ring is fixed on a cage channel, when the cage falls, a speed sensor or an acceleration sensor exceeds a specified maximum value, automatic circuit conduction is achieved on the speed sensor or the acceleration sensor, the strong current generates a strong magnetic field, according to the Lenz's law, when the cage passes through the aluminumplate ring, the magnetic field of the induced current is always used for blocking the change of the magnetic flux of the induced current, the generated resistance enables the cage to achieve speed reduction to be descended, the cage is descended safely through the step type speed reduction, the safety of the personnel is guaranteed, and the first protection effect is achieved; and a proximity switch enables a trigger to act, the current is sent to an igniter, the sodium nitride propellant contained in the igniter is ignited, then a large amount of harmless gas which takes nitrogen as a main gas can be generated, an air bag is inflated to a full state, and a second protection effect is achieved. According to the cage anti-falling speed reduction buffer device, the design is simple, the weight of the cage cannot be increased, the long-standing technical problem that the cage falls due to the facts that the case suffers from rope breakage, failed braking and failure of an anti-falling device are solved, the work is reliable, the safety performance is high, and the practicability is high.

Description

technical field [0001] The invention relates to a cage anti-falling deceleration buffer device, which belongs to the technical field of shaft engineering, and in particular to a cage anti-falling deceleration buffer device in shaft shaft equipment. Background technique [0002] Cage is one of the important equipment in mine hoisting, used to transport personnel, ore and materials, etc. Its normal operation is of great significance to the safe production of mining enterprises. Due to loose ropes, broken ropes, failure of the braking system, failure of protective devices such as fall arresters, and other reasons, tanks may fall, which may damage the wellbore equipment at the slightest level, resulting in suspension of production for maintenance, and at the worst, bring harm to the personal safety of the miners. had serious consequences. At present, the rail tank track fall arrester uses the steel rail tank track as the supporting element of the fall arrester. When the hoistin...

AI Technical Summary

Problems solved by technology

In production operations, it often happens that the falling speed or acceleration of the cage exceeds the standard specification requirements caused by various reasons, which eventually leads to loss of control and safety accidents

Images