CAJ | 학술논문

港口货物装船机上关键部件螺旋溜槽主要由单出杆液压缸及活动螺旋溜槽组成,其液压系统使用差动回路进行重力方向快速伸缸.对这种差动回路中使用三种不同类型的平衡阀进行了理论推导与分析,对其在差动回路中的先导控制压力进行了计算比较,并解释了平衡阀自由口存在背压时使用完全平衡阀要优于标准平衡阀的原因.
항구화물장선궤상관건부건라선류조주요유단출간액압항급활동라선류조조성,기액압계통사용차동회로진행중력방향쾌속신항.대저충차동회로중사용삼충불동류형적평형벌진행료이론추도여분석,대기재차동회로중적선도공제압력진행료계산비교,병해석료평형벌자유구존재배압시사용완전평형벌요우우표준평형벌적원인.
Spiral slide, one of the port ship-loader’s key parts, consists of a single rod cylinder and a movable spiral slide, and it can stretch rapidly in gravity direction by using differential circuit. This paper presents theoretical deri-vation and analysis on three different balancing valves in hydraulic differential circuit, and calculates and compares the pilot control pressure of different balancing valves in differential circuit. Besides, it explains the reason why full balancing valve has advantage over standard balancing valve when there is back pressure in the free port of the bal-ancing valve.