Mechanical tower crane rotation safety anti-collision device
A mechanical tower crane rotation safety anti-collision device comprises two sets of upper part rotation proximity switch installation components and two sets of lower part rotation proximity switch installation components, wherein the upper part rotation proximity switch installation components are...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | A mechanical tower crane rotation safety anti-collision device comprises two sets of upper part rotation proximity switch installation components and two sets of lower part rotation proximity switch installation components, wherein the upper part rotation proximity switch installation components are mounted on a tower crane rotation upper bracket, and four proximity switches are respectively mounted on the two upper part rotation proximity switch installation components, namely two proximity switches are mounted on each upper rotation proximity switch installation component; the two lower part rotation proximity switch installation components are mounted on a tower crane rotation lower bracket, and four metal inductive plates of the lower part rotation proximity switch installation components are respectively aligned with the upper rotation proximity switches. Two early warning zones and one alarm zone are defined by the four proximity switches, and when a tower crane rotates to two early warning critical poi |
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