摩擦电机

Focused on many problems existing in pressure control system of drilling pipe friction welding,such as high failure rate and poor amenability,the basic principles of friction welding and electro-hydraulic proportional technique were briefly described.

针对焊接钻杆连续驱动摩擦焊机采用开关阀组成压力控制系统存在故障几率高、可控性差等问题，将电液比例控制技术应用在摩擦焊压力控制中，实现了摩擦焊轴向压力闭环控制、滑台进给速度的开环控制；可对摩擦焊机主轴速度、轴向压力、轴向缩短量、主电机电流、油温等进行实时检测。

If this electro-mechanical dynamic model combined with friction model, we can estimate the performance of motor, realize the design, simulation completely by computer.

结合电机的摩擦模型，可预估出电机的性能，可实现该类型电机的设计、仿真一体化。

The piezoelectric motor includes a piezoelectric member which generates a first vibration mode and a second vibration mode simultaneously by an applied power and a frictional member of which a portion is insertedly attached into a concave portion indentedly formed on one side of the piezoelectric member, wherein the frictional member is in an elliptic motion by the vibration generated by the piezoelectric member, so that an influence of the attachment of the frictional member to a resonance frequency can be minimized.

该压电电机包括：压电构件，通过施加的功率同时产生第一振动模式和第二振动模式；摩擦构件，摩擦构件的一部分插入地附着到凹入地形成在压电构件的一侧上的凹入部分中，其中，摩擦构件通过由压电构件产生的振动进行椭圆运动，从而能够使附着摩擦构件对谐振频率的影响最小化。

5First direction with said motor and rotated in a second direction independently of said motor and gear train; anda governor for inhibiting rotation of said spool gear when it is independent of said motor and gear train, said governor including a governor gear mounted on said frame independently of said motor and gear train, said governor gear being meshed with said spool gear to rotate in unison therewith, and said governor gear 6 including means for inhibiting its rate of rotation in the form of a spring for fractionally engaging said governor gear with a friction surface.

第─个方向与电机和说，在独立旳第二个方向旋转说，电动机和齿轮列车；和抑制旋转的齿轮轴省长说，当它说，独立的电机和齿轮火车，省长说，包括一名省长说齿轮安装在框架独立说，电机和齿轮传动，齿轮说，州长说，目前啮合齿轮轴旋转异口同声地订定条文，并表示州长齿轮包括指在一个弹簧的形式抑制它的自转速率为小幅省长说，从事齿轮的摩擦表面。2。

First direction with said motor and rotated in a second direction independently of said motor and gear train; and a governor for inhibiting rotation of said spool gear when it is independent of said motor and gear train, said governor including a governor gear mounted on said frame independently of said motor and gear train, said governor gear being meshed with said spool gear to rotate in unison therewith, and said governor gear 6 including means for inhibiting its rate of rotation in the form of a spring for fractionally engaging said governor gear with a friction surface.

登录后回答可以获得经验值奖励，并可以查看和管理所有的回答。登录|第一个方向与电机和说，在独立的第二个方向旋转说，电动机和齿轮列车；和抑制旋转的齿轮轴省长说，当它说，独立的电机和齿轮火车，省长说，包括一名省长说齿轮安装在框架独立说，电机和齿轮传动，齿轮说，州长说，目前啮合齿轮轴旋转异口同声地订定条文，并表示州长齿轮包括指在一个弹簧的形式抑制它的自转速率为小幅省长说，从事齿轮的摩擦表面。2。

It is clear that when the book was attached to the multifraction run and electro-optical control at run time, motor brake is frequently used for closing the case of separation action, so that, if the brake friction wheel every time suck-journeyuva or slightly slightly the lawyers'gowns so that it tends to concentrate on local contrate friction to the corresponding axis wheels, and an increase in the work of the resistance of the motor, which in turn lead to a book should be sent along to run slowly.

很较着，当书夹在独不宾运行和光电把持运行时，电机的制动器是在屡不主息呼分别离动息的环境下举行的，这样，当制动器上的摩擦轮每不宾呼分的旅程稍有不到位或稍有方向时，不离便当使其方向的部分端面摩擦到对应的轴轮上，而补充电机的工息阻力，进而引起书夹运行速率减缓。

At present, the company mainly produces clutch friction plate motorcycle, engineering machinery brakes, motor friction films, mower, broken sticks machine, automobile air conditioning compressor, electric hoist, etc. special friction material.

目前，公司主要生产摩托车离合器摩擦片，工程机械用刹车片、电机摩擦片，割草机、碎枝机、汽车空调压缩机、电动葫芦机等特种摩擦材料。

All the actuators of the three-axis turntable are brushless torque motors, all the bearings are aerostatic air bearings, so the friction caused by these elements can be neglected. The main source of friction is the metal-to-metal friction on the slip rings. Hence the "Columb+Viscous+Static" friction model is used here for analysis.

由于三轴转台的驱动系统选用的是无刷电机，轴承则采用的是气浮轴承，轴系上的摩擦力已大大降低，三轴转台上的摩擦主要是滑环轴上金属对金属的摩擦，所以文中选用&库仑＋粘滞＋静摩擦&的摩擦模型来进行分析。

The needle would stop rolling to maintain the friction effect between the needle and tested tissue when this friction moment come to the driving moment of the friction coupler.

二、在驱动电机和刺激针之间设计一个摩擦耦合器，当刺激针和组织之间的摩擦力矩达到摩擦耦合器的驱动力矩后，刺激针就会停止转动并能保持住对组织的摩擦。

The characteristic of this series leveler iS that it has adopted two national patent technologies:group driving plate levelling machine ZL200420001176.0 and axial decelerating motor leveler ZL200520007514.6.Each top roll is driven by a set of decelerating motor.and every two lower rolls are driven by a set of dynamic system,so that the line speed of each roll iS consistent with sheet metal speed of the contacting part,and it has solved the problems existing in traditional transmission system,such as friction between sheet metal and roll surface.and mechanical interference problem in the system And the working roll adopts spherical roller bearings which have little friction resistance.so this series leveler has such advantages as high levelIing quality,Iittle noise,low energy consumption and environmental protection.compared with traditional levelers.

该系列矫平机的特色之处在于：采用分组驱动板材矫正机(ZL200420001176.0)和一种轴装式减速电机矫平机(ZL200520007514.6)两种国家专利技术，每根上辊由一套减速电机驱动，每两根下辊由一套动力系统驱动，从而使各辊的线速度与所接触部位的板料速度相一致，消除了传统传动系统存在的板料与辊面之间的摩擦和传动系统内部的机械干涉问题，同时由于工作辊的轴承均采用轧机用调心辊子轴承，摩擦阻力小，因此，该系列矫平机与传统矫平机相比，矫平质量高、噪音小、能耗低、节能环保。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。