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原文：
1.泵体剧烈振动或产生噪音： 　　 产生原因：螺杆泵安装不牢或水泵安装过高；电机滚珠轴承损坏；水泵主轴弯曲或与电机主轴不同心、不平行等。 　　 处理方法：装稳水泵或降低水泵的安装高度；更换电机滚珠轴承；矫正弯曲的水泵主轴或调整好水泵与电机的相对位置。 　　 2.传动轴或电机轴承过热： 　　 产生原因：缺少润滑油或轴承破裂等。 　　 处理方法：加注润滑油或更换轴承。 　　 3.螺杆泵不出水： 　　 产生原因：泵体和吸水管没灌满引水；动水位低于水泵滤水管；吸水管破裂等。 　　 螺杆与壳体之间的密封面是一个空间曲面。 在这个曲面上存在着诸如ab或de之类的非密封区，并且与螺杆的凹槽部分形成许多三角形的缺口abc、def。这些三角形 的缺口构成液体的通道，使主动螺杆凹槽A与从动螺杆上的 凹槽B、C相连通。而凹槽B、C又沿着自己的螺线绕向背面， 并分别和背面的凹槽D、E相连通。由于在槽D、E与槽F(它属 于另一头螺线)相衔接的密封面上，也存在着类似于正面的三 角形缺口a’b’c’，所以D、F、E也将相通。这样，凹槽ABCDEA也就组成一个“∞” 形的密封空间(如采用单头螺纹，则凹槽将顺轴向盘饶螺杆， 将吸排口贯通，无法形成密封)。不难想象，在这样的螺杆 上，将形成许多个独立的“∞”形密封空间，每一个密封空间所占有的轴向长度恰好等于累杆的导程t。因此，为了使螺杆 能吸、排油口分隔开来，螺杆的螺纹段的长度至少要大于一个导程。

“ Frequently Asked Questions dealing with screw”是由中国隔膜泵网提供的水泵行业新闻，译文仅供参考。另外，中国隔膜泵网还提供相关产品搜 索：隔膜泵型号、隔膜泵价格、隔膜泵技术、隔膜泵新闻、隔膜泵生产商等。

译文：
Frequently Asked Questions dealing with screw 1 pump to excessive vibration or noise: Reason: screw pump installation or pump installation is not strong too; motor ball bearing damage; pump shaft and motor shaft bending or different from the heart, not parallel and so on. Approach: install stable install pumps or lower pump height; replace the motor bearings; correction bent pump shaft or adjust the relative position of the pump and motor. 2 shaft or motor bearings to overheat: Reason: lack of lubrication or bearing rupture. Approach: add oil or replace the bearings. 3 screw no water: Reason: did not fill pump and suction pipe water; move the water level below the pump filter pipe; water pipe rupture. Screw the sealing surface between the shell is a curved surface. At this surface there are like, such as ab or de unsealed areas, and with the screw groove part of the formation of many gaps in the triangle abc, def. The triangular composition of the liquid channel gap, so take the initiative and driven screw groove A groove on the screw B, C connected to the pass. The groove B, C and along the spiral wound to his back and the back of the groove, respectively, and D, E connected to the pass. As the trough D, E and slot F (it belongs to the other end of the spiral) convergence of the sealing surface, there are also similar to the front of the triangular gap a'b'c ', so the D, F, E will be connected. This will form a groove ABCDEA "∞" shape of the seal space (such as the use of single thread, the grooves along the axial plate Rao will be screw through the suction port, can not form a seal). Not difficult to imagine, in such a screw, the formation of many independent "∞" shape confined space, confined space occupied by each of the axial length of the rod is exactly equal to the accumulated lead t. Therefore, in order to absorb the screw, the oil discharge port separated, the screw thread of the length at least larger than a lead.

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原文来源：http://www.1gemobeng.com/

2011-12-27 08:56

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