查询词典 hydraulic

To analyze the dynamic performance of hydraulic hybrid vehicles and to optimize the main design parameters of the hydraulic system, the mathematical models of the hydraulic system are established, which includes bidirectional variable-displacement motor, hydraulic accumulator and other components. The relation between polytropic exponent of bladder accumulator and variation rate of gas volume is defined.

为了分析液驱混合动力车辆的动态特性并优化液压系统的主要设计参数，建立了液压系统双向变量马达、液压蓄能器及其它主要元件的数学模型，定义了气囊式液压蓄能器的多变指数和气体体积变化率之间的关系。

The paper attempts to design and development a new type of hydraulic pump. It is the design of combining the advantages of sucker rod pump and rodless botttom hole pump, without pumping rod,and depends on the hydraulic system on the ground providing the impetus. The paper uses the pump Swabbing Principle to design the main parts of the pump structure and size, analyses and calculates the up down stroke of the piston and the switching process of pump valve, uses the finite element method to analyse the main force summing element and check intensity, and designs a ground hydraulic control system to match it. Considering the need of deep mining, salvage equipment is designed. The design shows that there is feasible and reliable to realize the exploitation underground using the new hydraulic pump. The design idea in this paper enlightens the rodless botttom hole pump production in the future and other similar issues.

本文尝试一种新型液力泵的设计和开发，它的设计思想是结合有杆泵和无杆泵各自的优点，取消抽油杆，依靠地面液压系统提供动力，本文从抽油泵抽汲原理出发，设计了抽油泵主要部件的结构和尺寸，对上下冲程柱塞的运动规律和泵阀启闭过程进行分析和计算，使用有限元法对主要零件进行了受力分析和强度校核，并设计与之配套使用的地面液压控制系统，考虑深井开采的需要，一并设计了打捞装置，为理论上实现了这种新型液力抽油泵井下开采的可行性和可靠性做了一些基础的工作，本文的设计思路对今后无杆泵采油等类似问题的研究做了有益的尝试。

NINGBO BEKO MACHINERY CO.,LTD. is A manufacturer who specially produce hydraulic winch,hydraulic slewer,travel drive motor,hydraulic motor and hydraulic system.

宁波市百科机械有限公司是一家专业生产液压绞车、回转减速机、行走减速机、液压马达以及液压系统等系列产品的制造工厂。

Is A manufacturer who specially produce hydraulic winch,hydraulic slewer,travel drive motor,hydraulic motor and hydraulic system.

宁波市百科机械有限公司是一家专业生产液压绞车、回转减速机、行走减速机、液压马达以及液压系统等。

This design is carries on the design and the research to this vehicleimportant constituent ---- hydraulic system and the electricitycontrol system, its hydraulic system by boards the hydraulic systemand alights the hydraulic system to be composed.

本设计是对该车的重要组成部分----液压系统和电气控制系统进行设计和研究，其液压系统由上车液压系统和下车液压系统组成。

This thesis is based on the design of hydraulic propelling which comes from the technology item of the method multitude objects optimizing design and being carried out in die-casting machine'exploitation ,and a software of hydraulic system principle diagram's automatic protracting is carried out by developer with Delphi. The efficiency and quality of drawing hydraulic system principle diagram is improved sharply. And the calculating of hydraulic system's pressure and flux is achieved.

课题以科研项目&多目标优化设计方法及其在压铸机产品开发中的应用&中的液压传动系统设计为依托，利用Delphi编程工具开发出液压系统原理图自动绘制软件，从而极大地提高液压系统原理图的绘制效率和绘图质量，并实现了液压系统管路压力与流量的求解和计算。

This thesis is based on the design of hydraulic propelling which comes from the technology item of the method multitude objects optimizing design and being carried out in die-casting machine"exploitation ,and a software of hydraulic system principle diagram"s automatic protracting is carried out by developer with Delphi. The efficiency and quality of drawing hydraulic system principle diagram is improved sharply. And the calculating of hydraulic systems pressure and flux is achieved.

课题以科研项目&多目标优化设计方法及其在压铸机产品开发中的应用&中的液压传动系统设计为依托，利用Delphi编程工具开发出液压系统原理图自动绘制软件，从而极大地提高液压系统原理图的绘制效率和绘图质量，并实现了液压系统管路压力与流量的求解和计算。

The company is mainly specializing in design,manufacture,installation and maintenance of many kinds of marine hydraulic and electric equipments,such as marine hydraulic steering gear,winch,anchor wind lass,oil box,control station and alarm systems etc;we also can design,manufacture and assemble various customized hydraulic and electric control systems as well as the import and export service for the marine hydraulic and electric equipments.

公司以设计、制造、安装和维修各种船舶液压和电气设备（如液压舵机、液压绞盘，液压锚机、油箱，驾控台，报警系统等）为主要业务，并可承接各种机械液压站和电气控制系统的设计、制造和安装调试，同时可进行各种船舶配套设备的进出口业务。

First according to the hydraulic pressure elevator system diagram, use the machine design and hydraulic transmission knowledge calculates the diameter of the plunger, cylinder tube wall thickness as well as cylinder bottom thickness; second, through the examination confirmation to the obtained result to complete the work of cylinder design; Simultaneously has carried on the component choice and the computation; Through to the system calorific capacity computation the and the volume of cooling water while the fuel tank cools when needs to complete the hydraulic pressure elevator fuel tank design; Based on the system oil stream condition to calculated the tube internal pressure lose, the local pressure loss as well as the all of the pressure lose to carried on the system checking calculation; Finally through the consult correlation design handbook to calculation and examines the belt, the band pulley, the axis, as well as the key, has completed the hydraulic pressure elevator pumping station transmission system design.

首先根据液压电梯系统原理图，利用机械设计与液压传动等方面的知识计算出柱塞的直径、缸筒的壁厚以及缸底厚度，并对所得结果进行校核验证完成了工作油缸的设计；同时进行了元件的选择和计算；其次，通过系统发热量的计算和油箱冷却时需要的冷却水量的计算完成了液压电梯油箱的设计；依据系统油流状态计算出管内压力损失、局部压力损失以及总压力损失进行了系统的验算；最后通过查阅相关设计手册对带、带轮、轴、以及键进行设计计算和校核，完成了液压电梯的泵站传动系统的设计。

Firstaccording to the hydraulic pressure elevator system diagram, usethe machine design and hydraulic transmission knowledge calculatesthe diameter of the plunger, cylinder tube wall thickness as wellas cylinder bottom thickness; second, through the examinationconfirmation to the obtained result to complete the work ofcylinder design; Simultaneously has carried on the component choiceand the computation; Through to the system calorific capacitycomputation the and the volume of cooling water while the fuel tankcools when needs to complete the hydraulic pressure elevator fueltank design; Based on the system oil stream condition to calculatedthe tube internal pressure lose, the local pressure loss as well asthe all ofthe pressure lose to carried on the system checking calculation;Finally through the consult correlation design handbook tocalculation and examines the belt, the band pulley, the axis, aswell as the key, has completed the hydraulic pressure elevatorpumping station transmission system design.

首先根据液压电梯系统原理图，利用机械设计与液压传动等方面的知识计算出柱塞的直径、缸筒的壁厚以及缸底厚度，并对所得结果进行校核验证完成了工作油缸的设计；同时进行了元件的选择和计算；其次，通过系统发热量的计算和油箱冷却时需要的冷却水量的计算完成了液压电梯油箱的设计；依据系统油流状态计算出管内压力损失、局部压力损失以及总压力损失进行了系统的验算；最后通过查阅相关设计手册对带、带轮、轴、以及键进行设计计算和校核，完成了液压电梯的泵站传动系统的设计。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。