Electricity-closing alarm device of crane

Abstract

The invention discloses an electricity-closing alarm device of a crane. The alarm device comprises an outdoor machine and an indoor machine, wherein the outdoor machine is arranged at the front end of a crane arm; the indoor machine is arranged in a cab; the outdoor machine comprises an electromagnetic radiation detector and an electricity supply unit; the electromagnetic radiation detector is used for detecting electric power facilities and sending a radio signal; the electricity supply unit is connected with the electromagnetic radiation detector; the indoor machine comprises a signal receiver, a singlechip, a display and alarms; the signal receiver is used for receiving the radio signal which is sent from the electromagnetic radiation detector, and is connected with the input end of the singlechip; the singlechip can be used for processing the radio signal; and the output end of the singlechip is connected with the display and the alarms. The electricity-closing alarm device disclosed by the invention adopts an electro-magnetic induction principle, the crane arm can sense an electromagnetic field of the electric power circuit when getting close to an electric power circuit, then alarm signals are sent, and further, the electric shock accident of the crane is avoided.

Description

Technical field [0001] The invention relates to a crane electronic equipment, in particular to a crane near electric alarm. Background technique [0002] Crane refers to a multi-action hoisting machinery that vertically lifts and horizontally transports heavy objects within a certain range, also known as a crane. [0003] In actual work, the crane has a relatively large boom radius, and the lifting steel cable and the lifted objects have a larger moving range, so the possibility of encountering power equipment and power cables is very high, and the power equipment is damaged. A major accident in which power cables (mainly 380 volts, 10,000 volts and 35,000 volts) are broken. In order to avoid the urgent need of damaging electric facilities, crane equipment and personnel safety, an alarm device is urgently needed. Summary of the invention [0004] In view of the above-mentioned problems in the prior art, the present invention provides a crane near-electricity alarm, which can sense...

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