查询词典 force piston

According to the structure and force of the piston, the piston can be simplified as axisymmetric model.

根据活塞的结构和受力，可以将活塞简化为轴对称模型来分析。

In order to enhance wear-resisting performance of the internal combustion engine piston ring,matrix microstructure and radial elastic force of the piston ring,the matching between piston ring and cylinder were analyzed.

为提高内燃机活塞环的耐磨性能，分析了活塞环的基体组织、径向弹力及活塞环与气缸套的匹配状况对其耐磨性的影响。试验表明活塞环的基体组织以细粒状珠光体或回火索氏体、石墨呈细小均匀分布为佳；活塞环的径向弹力大小应适宜，一般为

Hydrostatic transmission is widely used in construction machine. The research of one of its hard cores, low speed high torque radial piston motor, is very important. To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. The research is divided into four parts:1 Taken all forces the piston endured into consideration when radial piston motor working, the force between roller and orbit is deduced.

静压传动技术在各类工程机械中得到广泛的应用，对作为其核心部件的径向柱塞式低速大扭矩液压马达的研究显得十分重要，为了能直接对这种马达进行寿命估计，并能在相同工况下求得寿命最长的轨道曲线，本文从设计等接触应力内曲线的角度对这类马达作探讨性的研究，主要从以下四个方面进行：(1)综合考虑径向柱塞式液压马达工作时的各种主要受力状况，对柱塞组件进行受力分析，并通过仿真分析影响轨道和滚动体间正压力的各个因素，得到正压力的简化表达式。

Solid minerals separation processing machine, casting emery, metal-casting shaped boxes, model base board, force piston, plastic or rubber, injected plug and pressed plug, transfer shaft, crank and other transformation sections, bearing support, teeth pulley and other gearing speed variator, ball bearing, flywheel, chain wheel including pulley block.

固体矿物分选等处理机器，铸造砂。金属铸造用型箱，型模底板，阳模，塑胶或橡胶用注模或压模。传动轴及曲柄等传动部件，轴承座，齿轮及其它变速，传动装置，滚珠，飞轮及滑轮，包括滑轮组。

Since the inertial force of piston depends on its mass when the piston reciprocates at high speed, the tolerance of piston mass must be strictly controlled during design and manufacturing, so as to ensure engine operate smoothly.

活塞重量大小决定其高速往复运动时惯性力的大小，在设计和制造过程中要严格控制活塞重量的公差，以保证装机后发动机运转平稳，理论上公差值越小越好。

When the pressure is low, the role of Poppet head pressure sufficient to overcome the pressure regulator spring force, Poppet Head is closed at this time there is no pressure on the oil through the damping holes on the balance of the piston movement, so a balance piston, the next two cavity pressure equal, balanced piston under the action of the spring force gently on the top of the seat, pressure port and overflow port unreasonable.

当压力较低时，作用在提动头上的压力不足以克服调压弹簧力，提动头处于关闭状态，此时没有压力油通过平衡活塞上的阻尼孔流动，故平衡活塞上、下两腔压力相等，平衡活塞在弹簧力的作用下轻轻地顶在阀座上，压力口和溢流口不通。

By analysising the datum in different prestressing force of piston spring shows that raising the prestressing force of piston spring only have a small influence on stroke time to keep the other paramters in costant, but the back stroke time will be decreased and the frequency, the percussive energy and the hydraulic efficiency will be increased rapidly.

对不同锤簧予压力下液动冲击器性能变化的试验数据处理、分析得出：在保持液动冲击器的其它参数一定时，增加锤簧予压力对冲程时间影响不大，但可以大大缩短返程时间，大幅度提高冲击频率、冲击功和液动冲击器的水力利用效率，增加锤簧的予压力是提高液动冲击器性能的一种有效手段。

Joint-seal Glue Injector is a small device which is used to inject the glue into the concrete joint with the pressure, adopting the glue-injection piston and spring structure design, without the glue bag, fixing the piston in the front the push rod, installing the high strength spring onto the push rod, after release the lock latch of the push rod, pushing the piston and the push rod forward with the tensile force of the high strength spring, so pressing all of the glue liquid from the glue-injection cylinder into the joint.

灌缝胶注胶器是一种对混凝土裂缝持压注胶的小型设备，采用注胶活塞和弹簧的灌缝胶注胶器结构的改进，舍去了胶囊，通过在推杆前端固定注胶活塞，在推杆上套置高强度弹簧，在松开推杆的锁扣后，利用高强度弹簧的张力，可推动注胶活塞连同推杆前移，将注胶筒内的胶液完全压出注入建筑结构的裂缝中，价格低廉，性价比高，操作方便，施工安全，清洗方便，可多次重复使用。

Liquid as the driving force, piston, valve stem as a switch.

液体作为动力，活塞、阀杆作为开关。

When the speed of piton changes from several positive meters per second to negative during short time , a huge transient impacting force acts on the piston. The force spreads in the piston with stress wave. Converging force will become at some sections, which can destroy the piston.

从风动冲击器的工作原理可以得知，风动冲击器的活塞在高压气流的推动下，反复冲击钻头，冲击时活塞的速度由向下的几米每秒在极短时间内反弹为向上的速度，因而对活塞产生一个极大的瞬时冲击力，该力以应力波的形式在活塞内传播，就会在活塞的某些断面产生应力集中，造成活塞的破坏。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。