The invention discloses a combined shaft hydraulic pump, which comprises a pump main part, a shaft pipe driving part, a intermediate shaft driving part, a liquid outlet pipe part, a base plate and a motor. The main part of the pump comprises a pump body, a pump cover, an impeller, a seal ring, a seal body, an upper and lower machine seal seats, a thrust bearing body, a main shaft, a machine seal shaft sleeve and a support body. The shaft pipe transmission part comprises a support body B and a shaft pipe. The intermediate shaft transmission part comprises a thrust bearing body, a cylindrical roller bearing body, a support body C and an intermediate shaft. The seal body is built-in. The oil seal chamber is provided with a single end face mechanical seal near the impeller end to achieve the first layer of seal, and the oil chamber is provided with a double end face mechanical seal to achieve the second and third layers of seal, so as to make the seal more reliable. The thrust bearing body and the cylindrical roller bearing body are provided with oil seals to realize the grease lubrication of the bearings. The two ends of the shaft pipe are provided with shaft hubs, and the motor, shaft pipe and the middle are realized with flat keys By changing the length of the shaft tube and the support body, the connection and power transmission of the shaft and the main shaft can realize any liquid depth, especially by increasing the number of the transmission parts of the intermediate shaft and the shaft tube, which can be applied to the use of ultra long liquid depth.
【技术实现步骤摘要】
组合轴液下泵
本专利技术涉及一种泵,尤其是涉及一种组合轴液下泵。
技术介绍
由于液下泵的叶轮浸没于液下,启停方便,其被广泛应用于石化、焦化、钢铁、电力、环保等各行业,用于泵输各种腐蚀性与非腐蚀性的液体。但传统液下泵均存在以下的技术问题,其一:轴的悬臂较长,加工困难、刚性不足、临界转速低,容易产生振动与噪音,运行的稳定性差;其二:较长的悬臂,通常采用导轴承进行中间支撑,这就需要对导轴承进行水冷与冲洗润滑,给运行与维护带来了不便,另外水润滑导轴承的易磨损和不耐用的情况也普通存在,运行的可靠性差;其三:机械密封运行于泵送介质中,密封的结构单一,很容易造成密封失效,需要经常维护与更换,严重影响了机组的使用寿命。其四:因为长轴的加工问题,以及可靠性与稳定性的要求,较长的液下深度很难实现。
技术实现思路
本专利技术的目的是提供一种组合轴液下泵,解决上述
技术介绍
中的技术问题。为了达到上述目的,本专利技术采用以下技术方案:一种组合轴液下泵,其特征在于:所述的组合轴液下泵,包含了泵主体部件、轴管传动部件、中间轴传动部件、出液管部件、底板、电机。所述的泵主体部件包含了泵体、泵盖、叶轮、密封环、密封体、上下机封座、推力轴承体、主轴、机封轴套、支撑体甲,所述的轴管传动部件包含了支撑体乙、轴管,所述的中间轴传动部件包含了推力轴承体、圆柱滚子轴承体、支撑体丙、中间轴,所述的密封体、支撑体甲、支撑体乙、支撑体丙、推力轴承体、圆柱滚子轴承体、底板、电机等通过螺栓按相应的顺序依次连接,所述的主轴、中间轴、电机轴之间 ...
【技术保护点】
1.一种组合轴液下泵,其特征在于:所述的组合轴液下泵, 包含了泵主体部件、轴管传动部件、中间轴传动部件、出液管部件、底板、电机。/n
【技术特征摘要】 【专利技术属性】
1.一种组合轴液下泵,其特征在于:所述的组合轴液下泵,包含了泵主体部件、轴管传动部件、中间轴传动部件、出液管部件、底板、电机。
2.所述的泵主体部件包含了泵体、泵盖、叶轮、密封环、密封体、上下机封座、推力轴承体、主轴、机封轴套、支撑体甲,所述的轴管传动部件包含了支撑体乙、轴管,所述的中间轴传动部件包含了推力轴承体、圆柱滚子轴承体、支撑体丙、中间轴,所述的密封体、支撑体甲、支撑体乙、支撑体丙、推力轴承体、圆柱滚子轴承体、底板、电机等通过螺栓按相应的顺序依次连接,所述的主轴、中间轴、电机轴之间采用平键通过轴管的轴毂进行联接并实现动力传输。
3.根据权利要求1所述的组合轴液下泵,其特征在于:所述的密封体内置油室,近叶轮端设有一个单端面机械密封,实现第一层密封,油室内设双端面机械密封,实现第二、第三层密封。
4.根据权利要求1所述的组合轴液下泵,其特征在于:所述的推力轴承体与圆柱滚子轴承体均设有轴承压盖和骨架油封。
技术研发人员:倪源,崔昌昊,叶方志,
申请(专利权)人:山东锐拓泵业有限公司,
类型:发明
国别省市:山东;37
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