Swinging piston pump

摆动式活塞泵

Abstract

The utility model relates to a swinging piston pump, which comprises a frame body, a motor and piston cylinders. The frame body consists of a speed reducer box body, a bracket and a horizontal supporting shaft, a pair of piston cylinders are symmetrically installed on two sides of the bracket, each piston cylinder comprises a cylinder drum, an upper end cover and a lower end cover, a piston is coaxially and slidably mounted inside the cylinder drum, a piston rod penetrating through the lower end cover is coaxially installed on the piston, a speed reducer installed on the speed reducer box body and connected with the motor is a direct-alternating speed reducer, and eccentric shafts installed on output shafts on the two sides of the direct-alternating speed reducer are respectively and engagingly installed on piston rod end portions of the piston cylinders on two sides of the direct-alternating speed reducer. The swinging piston pump has simple structure and scientific design, achieves high working efficiency, high accuracy and improved quality level because the speed reducer installed on the speed reducer box body is the direct-alternating speed traducer, realizes effective seal to the piston cylinders, and protects seal assemblies by installing a C type seal assembly and an L type seal assembly inside each piston cylinder. Besides, the overall piston pump has the advantages of compact structure, small volume, strong rigidity and the like.
本实用新型涉及一种摆动式活塞泵,包括架体、电动机和活塞缸,架体包括减速器箱体、支架及水平支撑轴,在支架两侧对称安装一对活塞缸,活塞缸均由缸筒、上端盖、下端盖构成,在缸筒内同轴滑动安装一活塞,在活塞上同轴安装一贯通下端盖的活塞杆,其中减速器箱体所安装的与电动机相连接的减速器为直交轴减速器,该直交轴减速器通过其两侧输出轴上所安装的偏心轴分别配合安装两侧的活塞缸的活塞杆端部。本实用新型结构简单,设计科学,减速器箱体所安装的减速器为直交轴减速器,工作效率高、精度高,提高了活塞泵的质量水平;在活塞缸内安装有C型密封组件、L型密封组件,实现了对活塞缸的有效密封并能够对密封组件进行保护,且活塞泵整体具有结构紧凑、体积小巧、刚性较强等优点。

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