A multi point force electro-hydraulic servo position control device comprises a controller, multi position control unit and power source, multi position control unit respectively comprises a group of applicator, a displacement sensor; each applicator group of applicator each include a valve and a cylinder control signal respectively. With the multi position control unit in each displacement sensor output signal is compared, the displacement sensor is also connected with the force of the object and reference contact connected to detect the force and the distance between the object and the reference object; the power source and the applicator group is connected circuit is connected with the oil cylinder, pressure reducing valve, cylinder jacking the force on the object, which is characterized in that each position of the control unit also includes a position controller and power controller, the position controller arranged in the displacement sensor and force closed-loop control The difference between signals and the position feedback signal, the control signal output force, force the closed-loop controller is arranged between the applicator group and position controller, including power controller, electro-hydraulic servo valve and a pressure sensor, wherein the controller receives the force position controller sends force control signal output. In order to control oil pressure, pressure reducing valve, the electro-hydraulic servo valve and pressure sensor circuit is connected through the circuit and the position control group each valve unit in the drain port connected to the electro-hydraulic servo valve through oil circuit and power source composed of hydraulic oil loop.
【技术实现步骤摘要】
本技术涉及一种大型、重型物体的顶推装置,尤其涉及一种力和位置综合控制的多点施力电液伺服位置控制装置。
技术介绍
在抬升或平移建筑物及大型构件时,要求对物体均匀施力,以免建筑物或构件变形开裂。随着建筑物的加大,施力点的数量,可能以平方关系增加。目前国内已有24点同步顶升装置,国外则有48点的装置。但是,要求一大批施力点同步运动,是一件十分困难的事,尤其是施力点的着力基础存在沉降时,传统的多点位置闭环控制系统无法予以纠正。现有技术的一种四点位置闭环控制系统如图1所示。它包括控制器A,电气盒E、位移传感器B、单向阀D、油缸G、控制阀组总成H和动力源F,由各位移传感器B、单向阀D、油缸G和受力物体组成四点位置闭环。控制器A与电气盒E电连接,各位移传感器B分别通过电缆C与电气盒E连接,控制阀组总成H通过液压软管与动力源F组成液压油回路,并分别通过液压软管与各单向阀D和油缸G组成液压油回路。
技术实现思路
本技术是为了解决现有多点位置闭环控制系统存在各施力点受力不均、可能造成建筑物或构件变形开裂的问题而提供一种多点力均衡、分组位置闭环的多点施力电液伺服位置控制装置。本技术所采取 ...
【技术保护点】
【技术特征摘要】
【专利技术属性】
技术研发人员:吴定安,董秀林,潇然,
申请(专利权)人:实用动力上海有限公司,
类型:实用新型
国别省市:
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