- 专利标题: Digging equipment with relative improved hydraulic system
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申请号: US14664023申请日: 2015-03-20
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公开(公告)号: US09850637B2公开(公告)日: 2017-12-26
- 发明人: Valentino Ciccotelli
- 申请人: SOILMEC S.p.A.
- 申请人地址: IT Cesena (FC)
- 专利权人: SOILMEC S.P.A.
- 当前专利权人: SOILMEC S.P.A.
- 当前专利权人地址: IT Cesena (FC)
- 代理机构: Lucas & Mercanti, LLP
- 优先权: ITMI2014A0492 20140324
- 主分类号: E02F3/20
- IPC分类号: E02F3/20 ; E02D17/13 ; E02D3/12 ; E21B7/02 ; E02F9/22
摘要:
The invention includes digging equipment having a self-propelled base machine provided with an arm that supports a digging tool. The digging tool is provided with a device for crumbling soil. The digging tool is operatively connected to the base machine through a suspending flexible element that can be wound or unwound by a winch arranged on the base machine. The base machine also includes a main power engine, to actuate all the hydraulic apparatuses of the digging equipment, and a hydraulic system consisting of two independent and separate hydraulic circuits (S; U). A first hydraulic circuit (S) is configured to control and supply the main service apparatuses of the base machine, including a movement apparatus for moving the digging tool. A second hydraulic circuit (U) is configured to control and supply the main digging apparatuses of the digging tool, including at least the actuators of the device for crumbling soil.