PROBLEM TO BE SOLVED: To provide a hydraulic system of a deck crane capable of eliminating replacement work of hydraulic oil with new oil or purification work of the hydraulic oil using an electrostatic oil cleaner and the like, and a deck crane.SOLUTION: In a hydraulic circuit in which hydraulic oil stored in a tank 12 is forcibly fed by a hydraulic pump 13 to drive a hydraulic motor 14 (a hoisting hydraulic motor 14a, an elevation hydraulic motor 14b, a revolving hydraulic motor 14c), and the hydraulic oil having driven the hydraulic motor 14 is filtered through a main filter 15, an auxiliary filter 17 whose filtering particle size is set to be smaller than that of the main filter 15 is provided in a filtering line 16 which guides a part of the hydraulic oil having driven the hoisting hydraulic motor 14a as the hydraulic motor 14 to the tank 12.SELECTED DRAWING: Figure 1
【課題】作動油を新油へ交換する作業或いは静電浄油機等による作動油の浄化作業を不要とし得るデッキクレーンの油圧システム及びデッキクレーンを提供する。【解決手段】タンク12に貯留される作動油を油圧ポンプ13で圧送して油圧モータ14(巻上油圧モータ14a、俯仰油圧モータ14b、旋回油圧モータ14c)を駆動し、油圧モータ14を駆動した作動油をメインフィルタ15で濾過する油圧回路において、油圧モータ14としての巻上油圧モータ14aを駆動した作動油の一部をタンク12へ導く濾過用ライン16に、メインフィルタ15より濾過粒度が小さく設定された補助フィルタ17を設ける。【選択図】図1
HYDRAULIC SYSTEM OF DECK CRANE AND DECK CRANE
デッキクレーンの油圧システム及びデッキクレーン
2016-08-25
Patent
Electronic Resource
Japanese
European Patent Office | 2021
|Fully hydraulic double deck crane
Tema Archive | 1976