介绍了液压往复杆式密封是否发生泄漏的影响因素，指出密封表面粗糙度和杆速是决定密封是否泄漏的重要因素。
The paper introduce the leakage influences factor of reciprocating rod seals; the roughness of the seal surface and the rod speed are the important parameter of seal leakage.
系列：微型土卫六，电子，往复，杆锁。
适用于液压缸活塞杆往复运动用密封装置，也可用于法兰端盖的静密封装置。
Apply to reciprocating motion of hydraulic cylinder piston rod sealed device can also be used to cover the static flange seal.
本实用新型属于机电产品，特别涉及一种往复式抽油泵无杆驱动机构。
The utility model belongs to an electromechanical product, in particular to a rodless driving mechanism for a reciprocating oil well pump.
它使用专利ami的扭杆刮刀以及往复基板，具有前面板可编程印刷冲程和过程拖延。
It USES the patented AMI Torsion Bar squeegee head with a reciprocating substrate carriage and features front-panel programmable print stroke and process delays.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from top to bottom hole reciprocating movement to complete the valves open and close function.
当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。
When the hand wheel rotation, through the stem-driven plunger in the middle from KER to bottom hole reciprocating movement to complete the valves open and close function.
在研究驱动圆盘式人力收割机时，设想将人手的往复摆动转换为圆盘转动所采用的六杆机构。
This article mainly talks about how to replace the to-and from swinging movement of hand with a six-pole machine applied by disc rotation.
有杆泵往复抽油方式常采用机、杆、泵优化的方法来提高系统的整体效率，但易忽略电动机与其他设备的合理匹配。
Rod pumping oil recovery system is applied widely, the optimal method was usually used to enhance the efficiency, but it is easy to ignore that the electromotor matches other fixtures rationally.
本装置也可用于其它高温常压往复运动杆件粗密封的场合。
The device can also be used in the occasions of rough sealing of other high-temperature atmospheric-pressure reciprocating motion rod parts.
转动手轮使丝杆带动丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的，同时密封副在闸板运动中阻拦粉尘不进入传动腔内，无外漏污染。
Rotate the handwheel driving the pole and nut reciprocate in horizontal. At the same time the seal can prevent dust from entering driving body and out-leakage pollution does not exist.
现有大割幅切割器为往复式，这种切割器割台振动剧烈，且切割性能不高，不易切割较粗茎杆。
The existing harvester with large cutting range is the reciprocating form. The cutting table of the cutter has intense vibration and poor cutting property and is difficult to cut thick stalks.
主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。
It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nut gate board move in horizontal to fro to open close the valve.
主要由框架、闸板、丝杆、螺母等零件构成，用手转动手轮使丝杆带着丝杆螺母和闸板沿水平方向往复运动，达到闸门的启闭目的。
It is mainly made up of frame, gate board, screw pole, nut etc. Rotate the handwheel by hand, then the screw pole drives the nut gate board move in horizontal to fro to open close the valve.
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