Force balance type electric cylinder featuring fluid circulation

力平衡式流体循环电动缸

Abstract

本发明公开了一种力平衡式流体循环电动缸,包括轴承、丝杆、丝杆螺母、油缸体,油缸体包括缸筒、前端盖、后端盖和可在缸筒内前后运动的活塞杆,缸筒前后分别设置有前端盖、后端盖,丝杆螺母和活塞杆刚性连接,丝杆和活塞杆之间形成第一盛油腔,在油缸体的缸筒和活塞杆之间形成第二盛油腔,在油缸体上设置有第一液压油路接口和第二液压油路接口,第一液压油路接口和第二液压油路接口上通过管路分别连接流向相反的第一单向阀和第二单向阀,第一单向阀和第二单向阀之间通过管路连接有蓄能器,缸筒的前端设置有至少一组第一磁性感应开关,后端设置有至少一组第二磁性感应开关,活塞杆后端上设置有永磁体导向滑块,缸筒的一侧设置有导轨,油缸体和活塞杆之间设置有伸长极限保护液压阻尼缓冲机构和收缩极限保护液压阻尼缓冲机构。第一盛油腔、第二盛油腔、单向阀、单向阀、蓄能器以及连接管路中充满了有压力的液压循环介质。
The invention discloses a force balance type electric cylinder featuring fluid circulation, comprising a bearing, a screw, a screw nut and an oil cylinder body. The oil cylinder body comprises a cylinder barrel, a front end cover, a rear end cover and a piston rod which can move back and forth in the cylinder barrel. The front end cover and the rear end cover are respectively arranged in front ofand at the back of the cylinder barrel. The screw nut is in rigid connection with the piston rod. A first oil holding cavity is formed between the screw and the piston rod. A second oil holding cavityis formed between the cylinder barrel of the oil cylinder body and the piston rod. A first hydraulic circuit connector and a second hydraulic circuit connector are arranged on the oil cylinder body and are respectively connected with a first one-way valve and a second one-way valve, with opposite flow directions, by pipelines. An energy accumulator is connected between the first one-way valve andthe second one-way valve by a pipeline. The front end of the cylinder barrel is provided with at least a group of first magnetic inductive switches and the rear end thereof is provided with at leasta group of second magnetic inductive switches. A permanent magnet guiding slide block is arranged at the rear end of the piston rod. A guide rail is arranged at one side of the cylinder barrel. A tensile hydraulic damping buffer mechanism for limit protection and a retractile hydraulic damping buffer mechanism for limit protection are arranged between the oil cylinder body and the piston rod. Thefirst oil holding cavity, the second oil holding cavity, the first one-way valve, the second one-way valve, the energy accumulator and a connecting pipeline are full of hydraulic circulating media with pressure.

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Cited By (9)

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    CN-105715593-AJune 29, 2016绍兴吉能纳米科技有限公司Power source device of ultrahigh-pressure liquid system
    CN-105909624-AAugust 31, 2016河北工业大学Electro-hydraulic hybrid servo system
    CN-105909624-BDecember 05, 2017河北工业大学一种电液混合伺服系统
    CN-106499694-AMarch 15, 2017苏州蓝王机床工具科技有限公司Hydraulic cylinder for plunger