泰州NSK轴承61906-2Z固定与可变的焦点交流应用

压*轴承的节流器有固定节流器和可变节流器两类，前者的液阻(节流阻尼)是固定不变的，后者的液阻是可变的。

There are two kinds of throttles for pressure bearing: fixed throttle and variable throttle. The hydraulic resistance (throttle damping) of the former is fixed and the hydraulic resistance of the latter is variable.

泰州NSK轴承固定节流器静压*轴承常用的固定节流器有毛细管和小孔式两种。 毛细管节流器，是利用***针管2截取合适的长度，焊*接在探*头l上制成。这种节流器利用油液流经细长小孔时产生的液压阻力(节流阻尼)引起压力降落。

Taizhou NSK bearing fixed throttle hydrostatic * bearing commonly used fixed throttle has capillary and orifice type. The capillary throttle is made by using the injection needle 2 to cut off the suitable length and welding on the probe head L. The throttle utilizes hydraulic resistance (throttle damping) generated by oil flowing through a slender orifice to cause pressure drop.

小孔节流器由黄铜或45钢一制成，是利用小孔(半径。)产生节流阻力的。 由于固定节流器的液阻不能随外载荷的变化而变化，所以采用这种节流器的静压*轴一承工作时，为平衡外载荷，在油腔间形成压力差，依靠改变油腔问封油缝隙的大小，进而影响回油阻力和油腔压力。

The orifice throttle is made of brass or 45 steel. It uses orifice (radius). It produces throttling resistance. Because the hydraulic resistance of the fixed throttle can not change with the change of the external load, the hydrostatic * axis of the throttle is used to balance the external load and form a pressure difference between the oil chambers. By changing the size of the sealing gap between the oil chambers, the return oil resistance and the pressure of the oil chamber are affected.

也就是泰州NSK轴承主轴在受载后**须保持一定的位移量，才能形成油腔问的压力差。主轴的这种偏移影响了它的旋转精度，为进一步提高静压*轴承的旋转精度，可采用可变节流器。

That is to say, the spindle of Taizhou NSK bearing must maintain a certain displacement after loading, in order to form pressure difference between oil chambers. This offset of the spindle affects its rotational accuracy. To further improve the rotational accuracy of the hydrostatic * bearing, variable throttle can be used.

离心泵应用轴承是套在泵轴上支持泵轴的构件，固然这里的轴承有转动轴承和滑动轴承两种。填料函的作用重要是为了封闭泵壳与泵轴之间的空隙，不让泵内的水流不流到表面来也不让表面的氛围进入到泵内。

Centrifugal pump application bearing is sleeved in the pump shaft to support the pump shaft components, although here there are two kinds of bearings: rotary bearings and sliding bearings. The important function of the packing box is to close the gap between the pump shell and the pump shaft, so as to prevent the flow of water in the pump from flowing to the surface and the atmosphere on the surface from entering the pump.

泰州NSK轴承密封环又称减漏环。为了增长回流阻力减少内漏，延缓叶轮和泵壳的所利用寿命，在泵壳内缘和叶轮外助联合处装有密封环，密封的间隙连结在0.25～1.10mm之间为宜。始终连结水泵内的真空！当泵轴与填料摩擦孕*育*发生热量就要靠水封管住水到水封圈内使填料冷*却，连结水泵的正常运行。

Taizhou NSK bearing seal ring is also called leak reduction ring. In order to increase reflux resistance, reduce internal leakage and delay the service life of impeller and pump shell, a sealing ring is installed at the joint of inner edge of pump shell and external assistance of impeller, and the gap between 0.25 mm and 1.10 mm is suitable. Always connect the vacuum in the pump! When the friction between the pump shaft and the filler generates heat, it depends on the water sealing pipe to hold the water in the water sealing ring to make the filler cool, so as to connect the normal operation of the pump.

填料函重要由填料，水封环，填料筒，填料压盖，水封管构成。起到支持牢固作用，并与安置轴承的托架相毗连。叶轮上的表里表面要求平滑，以减少水流的摩擦丧失。

Packing box is composed of packing, water seal ring, packing cylinder, packing cap and water seal pipe. It plays a strong supporting role and is adjacent to the bracket for placing bearings. The surface and inner surface of impeller should be ***ooth to reduce friction loss of water flow.

泵体也称泵壳，它是水泵的主体。泰州NSK轴承叶轮入口与泵壳间的间隙过大会造成泵内高压区的水经此间隙流向低压区，影响泵的出水量，服从低落！间隙过小会造成叶轮与泵壳摩擦会发生磨损。转动轴承利用牛油作为润滑剂加油要得当一样通常为2/3～3/4的体积太多会发热，太少又有响声并发热，轴承利用的是透明油作润滑剂的,加油到油位线。

Pump body, also known as pump shell, is the main body of the pump. Taizhou NSK bearing impeller inlet and pump shell clearance between the general cause of high-pressure area of the pump water flow through this clearance to low-pressure area, affecting the pump's water output, subject to low! ***all clearance will cause friction and wear between impeller and pump shell. Rotating bearings using butter as lubricant should be properly oiled as usual, usually 2/3-3/4 of the volume too much will heat, too little noise and heat, bearings using transparent oil as 、lubricant, refueling to oil level line.

文章来自：泰州SKF轴承 www.wh-skf.com

Article from: Taizhou SKF Bearing www.wh-skf.com

文章来自：泰州INA轴承 www.ina-china.cn

Article from: Taizhou INA Bearing www.ina-China.cn

文章来自：泰州NSK轴承 www.klbbearings.com

Article from: Taizhou NSK Bearing www.klbbearings.

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