PROBLEM TO BE SOLVED: To provide a leg opening type hydraulic shovel capable of suppressing reduction in stability at the time of leg opening.SOLUTION: A leg opening type hydraulic shovel comprises: a traveling body 10; a revolving superstructure provided on the upper part of the traveling body 10 in a revolvable manner; a work machine attached to the revolving superstructure; a hydraulic actuator for driving the work machine; a hydraulic pump for discharging pressure oil for driving the hydraulic actuator; and a motor for driving the hydraulic pump. The traveling body 10 comprises: a center frame 14 for supporting the revolving superstructure; left and right traveling devices 12 rotatably coupled to the center frame 14, the traveling devices being capable of opening their legs in a V-shaped form by extending an interval between front parts of the respective traveling devices; and a cylinder 67 for opening/closing the legs of the left and right traveling devices. The leg opening type hydraulic shovel comprises a restraining mechanism 70 for restraining rotation of the traveling devices 12 with respect to the center frame 14.SELECTED DRAWING: Figure 7
【課題】開脚時の安定性の低下を抑制できる開脚型油圧ショベルを提供する。【解決手段】走行体10、走行体10の上部に旋回可能に設けた旋回体、旋回体に取り付けた作業機、作業機を駆動する油圧アクチュエータ、油圧アクチュエータを駆動する圧油を吐出する油圧ポンプ、及び油圧ポンプを駆動する電動機を備え、走行体10が、旋回体を支持するセンタフレーム14、センタフレーム14に対して回動可能に連結されて互いの前部の間隔を拡大してV字型に開脚可能な左右の走行装置12、及び左右の走行装置を開脚及び閉脚させるシリンダ67を備えた開脚型油圧ショベルにおいて、走行装置12のセンタフレーム14に対する回動を拘束する拘束機構70を備える。【選択図】図7
LEG OPENING TYPE HYDRAULIC SHOVEL
開脚型油圧ショベル
2018-11-29
Patent
Electronic Resource
Japanese