TRACK-TRAVELING TYPE CRANE
To provide a track-traveling type crane that can maximize its lifting capacity at work.SOLUTION: A track-traveling type crane includes: a running body 10 that can run freely along a rail 15 and whose wheelbase W is longer than the rail span S; a post 20 erected from the running body 10; a swivel 30...
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Zusammenfassung: | To provide a track-traveling type crane that can maximize its lifting capacity at work.SOLUTION: A track-traveling type crane includes: a running body 10 that can run freely along a rail 15 and whose wheelbase W is longer than the rail span S; a post 20 erected from the running body 10; a swivel 30 arranged freely at the top of the post 20; a jib 40 provided on the swivel 30 in an undulating manner; a swivel angle detector to detect the swivel angle of the jib 40; a derricking angle detector to detect the derricking angle of the jib 40; a load detector that detects a load of a suspended load being lifted by the jib 40; and a controller in which a plurality of rated load curves for the working radius of the jib 40 are set according to the turning angle of the jib 40.SELECTED DRAWING: Figure 3
【課題】作業時における吊り上げ能力を最大限に引き出すことができる軌道走行式クレーンを提供する。【解決手段】レール15に沿って走行自在で且つホイールベースWがレールスパンSより長い走行体10と、走行体10から立設されたポスト20と、ポスト20の上端に旋回自在に配設された旋回体30と、旋回体30に起伏自在に設けられたジブ40と、ジブ40の旋回角度を検出する旋回角度検出器と、ジブ40の起伏角度を検出する起伏角度検出器と、ジブ40によって吊り上げられる吊荷の荷重を検出する荷重検出器と、ジブ40の作業半径に対する定格荷重曲線がジブ40の旋回角度に応じて複数設定された制御器とを備える。【選択図】図3 |
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