Comparing with the traditional form of hydraulic starting, soft starting of the belt conveyor application is inevitable direction of development. 通过与传统液压启动方式比较,指出了软启动在带式输送机上的应用是必然的发展方向。
The utility model belongs to the technical field of inertial mechanisms, and discloses a hydraulic starting type inertial automatic machine. 本实用新型属于惯性机械技术领域,公开了一种液压启动惯性自动机。
The hydraulic starting type inertial automatic machine provided by the utility model can repeatedly utilize energy resources, and can solve the problems caused by lacking of energy resources. 本实用新型所提供的液压启动惯性自动机能重复利用能源,解决了能源缺乏所造成的问题。
Design principle of hydraulic system on whole section tunneler and the application of proportional technique are introduced in this article, starting from a typical system. 本文从一个典型系统人手,介绍全断面隧道掘进机液压系统的设计原则和比例技术的应用。
When using the hydraulic drawworks, it occurred frequently the load descend phenomenon in starting, the direct ratio relation of descend to load quantity is discovered. 在使用中发现,液压绞车启动初期常会出现负载下滑现象,下滑距离与负载大小成正比。
With the minimum of injection energy consumption as the objective function, the hydraulic equilibrium, injection pressure as the constrained conditions, an optimization mathematic model of oil field injection system pump starting plan is established. 以注水能耗最小为目标函数,水力平衡约束、注水量约束、注水压力约束等为约束条件建立了油田注水系统开泵方案优化数学模型。
With the analysis of hydraulic pressure fluctuation in draft tube during the starting process as an example, it attempts to find its time variation with the operation conditions. 以机组启动过程中的非平稳尾水管水力压力脉动信号分析为例,研究压力脉动在过渡过程中的时变特征。
The control model of hydraulic automatic transmission test rig are developed based on MATLAB/ Simulink, and the dynamic performance test of initial starting shift and cruise control test are carried through for the theatrical and experimental base of vehicle equipped with hydraulic mechanical automatic transmission. 以MATLAB/Simulink为基础开发了液力机械自动变速传动试验系统控制模型,进行了原地起步换档动力性试验和巡航控制试验。本研究为液力机械自动变速传动系统的匹配控制奠定了理论和试验基础。
Compared with the traditional hydrostatic bearing structure, the area of slipper pair piston chamber is enlarged to ensure the formation of lubrication film while hydraulic motors starting, and a small diameter of damper is used to compensate the thermal viscidity effect. 与传统的静压支承结构相比,增加了油室面积以保证液压马达启动时油膜的形成,采用合适直径的阻尼孔以补偿粘温效应。
Hydraulic coupler and soft starter are the driving equipment, being able to increase the starting capability of electrical machine and reduce the impulse and vibration in the mechanical driving system. 液力偶合器和软启动器在机械传动系统中是具有提高电机启动能力、减小冲击与振动的传动装置。
Unified hydraulic system is composed of pump stations and pipelines, energy consumed by pipelines must be fitted with that provided by pump stations, the energy balance equation, which is starting point of analyzing problems concerning transportation in pipeline. 在由泵站和管道组成的统一的水力系统中,管道消耗的能量必然与泵站提供的能量相平衡,即压能平衡。
Hydraulic Motor Starting and Low-Speed Torque Characteristics 液压马达起动和低速扭矩特性试验研究
The operating principle and features of the energy saving device of a patented hydraulic motor system for large inertia and frequent starting is described. 本文阐述了一种已获专利的大惯量且频繁启动的液压马达系统节能装置的工作原理和特点;
In order to decreasing hydraulic impact, the principle is analyzed to eliminate or increase hydraulic impact by means of changing eccentric lump structure to cut down the inertia force of starting, changing the pressure of pilot electromagnetic relief valve and changing the parameters of accumulator. 为了减小液压冲击,本文分析了用改变偏心块结构减小起振惯性力的方式、用改变先导式电磁溢流阀溢流压力方式和改变蓄能器参数方式消除或减小液压冲击的原理。
This paper introduces the test using LDV ( Laser Doppler Velocimeter) for measuring the flow field of hydraulic torque converter used for starting diesel locomotive. 本文介绍了用激光多普勒测速仪对机车起动变矩器导轮速度场的测试,较精确地计算了变矩器的循环流量、叶轮出口偏离角等重要参数。
The shaft of hydraulic semi-rotary motor needs to be driven smoothly at a superlow speed for testing its starting friction characteristic. 测试摆动式液压马达起动摩擦特性需要对其转子轴施加平稳、超低速驱动。
Use of Hydraulic Coupling for Starting Large Synchronous Condenser 大型调相机的液力起动
An analysis is made on three main soft starting techniques of belt conveyors and the hydraulic speed regulation is considered as the most economical and practical soft starting technique for mine's long distance belt conveyors. 对目前带式输送机3种主要软起动技术进行了分析,认为液力调速技术是矿山长距离带式输送机上最经济实用的软起动技术。
Vertical Positoned Hydraulic Cylinder Starting Dynamic Characteristic Research 立式布置液压缸起动动态特性研究
On the general design of hydraulic adjustment, safety, and starting device in the jaw crusher 鄂式破碎机液压调整、保险和起动装置设计方案的探讨
Transient hydraulic performance of a centrifugal pump during rapid starting period 离心泵在启动阶段的水力特性研究
When the hydraulic retention time was 24h, AAC had fast starting speed and biofilm could form well in five days. 发现当水力停留时间为24h,反应器具有较快的启动时间和效率,五天就能实现生物膜的快速生长。
For medium-sized hydraulic excavator, because the quality of the entire machine and its load is high, the slew system has typical characteristics of large inertia load system: its starting and braking characteristics, coordination of compound action on slewing and boom lifting are not very ideal. 对于中型液压挖掘机,由于整机质量和负载质量的增大,回转系统具有典型大惯性负载系统的特点,回转系统启动、制动特性,回转与动臂举升复合动作的协调性较差。
The transient dimensionless head curve deviating from steady-state dimensionless curve shows that the transient hydraulic characteristics during starting period do not have a similarity, and the quasi steady-state method is not suitable for revealing the internal flow characteristics of the mixed-flow pump. 瞬态无量纲扬程曲线偏离稳态无量纲曲线,说明启动过程的瞬态水力特性不具有相似性,准稳态方法不适用于揭示斜流泵瞬态工作过程的内流特性。