液压式抽油机的论

液压式抽油机的设计

摘要：本文根据液压抽油机的基本参数和机构性能特点，以常规游梁式抽油机为基础模型，对其进行技术性改进，而得到具有新型节能特点的液压式式抽油机。该机具有无极调节冲程长度、冲次，悬点震动载荷小，控制灵活、方便等优点，可以适应不同的油井状态，同时在最大限度内保持了常规游梁式抽油机结构简单、操作、维修方便的优势，适合在各种工况的原油开采，是一种综合性能比较好的液压抽油机。文章在液压式抽油机基本理论的基础上，做了以下计算：液压式抽油机驴头悬点载荷的计算、液压系统原理图的设计、液压缸的设计和电动机的功率计算等。最后介绍的是各零部件设计的尺寸计算与校核，液压式抽油机通过液压系统驱动抽油杆上下往复运动；平衡系统主要用于控制和调节工作行程换向和抽油杆柱运动的平衡，是电机的负载均匀，达到节省能源的目的。，并且有利于改善构件的受力状况，减少抽油机事故的发生，从而提高抽油机的综合效益。对平衡的配置进行分析和优化设计，满足所要求的工况需要。

关键词：液压抽油机；液压系统；液压缸

The design of hydraulic pumping unit

Abstract: According to the basic parameters of hydraulic pumping units and agencies of the performance characteristics of a conventional beam pumping unit for the base model, its technical improvements, and get a new energy-saving features of the hydraulic pumping unit. The machine has limitless adjustment stroke length, stroke, shock suspension point load of small, flexible control and easy, well you can adapt to different states, while the maximum extent possible to maintain the conventional beam pumping unit of simple structure, operation, the advantages of easy maintenance, suitable for a variety of working conditions in crude oil production, is a relatively good overall performance hydraulic pumping unit. Article in the hydraulic pumping unit based on the basic theory, do the following calculation: the first ass hydraulic pumping rod load calculations, schematic design of the hydraulic system, hydraulic cylinder design and motor power calculation. Finally, the design is the size of the parts calculation and check, hydraulic pumping unit driven by the hydraulic system of the upper and lower reciprocating rod; balance system is mainly used to control and adjust the work schedule for movement to and sucker rod balance the electrical load evenly, to save energy purposes. And components will help to improve the situation by force, to reduce the occurrence of pumping units, thereby improving the overall efficiency of pumping units. The configuration of the balanced analysis and optimal design, to meet the needs of the required conditions.

Key words: hydraulic pumping unit; hydraulic system; hydraulic cylinder

目 录

1 绪论 (1)

1.1 前言 (1)

1.2 国外液压抽油机的发展概况 (2)

1.3 国内液压抽油机的发展概况 (2)

1.4 抽油机的现状～发展方向及其节能技术 (3)

1.4.1 现有抽油机主要存在的问题 (3)

1.4.2 今后抽油机的发展方向 (4)

1.4.3 抽油机节能技术及发展情况 (5)

1.5 液压抽油机设计方案及基本原理 (6)

2 液压抽油机总体尺寸的确定 (7)

2.1 公式推导 (7)

2.1.1 几何关系公式 (7)

2.1.2 行程计算公式 (8)

2.1.3 力矩计算公式 (8)

2.1.4 单位功计算公式 (8)

2.1.5 油缸最大摆角公式 (8)

2.2 方案计算 (8)

2.2.1 分别计算10b,r ,α和S 。 (9)

2.2.2 分别计算13,l,ββ和2β (9)

2.2.3 计算 i ξ 及 i ξ。 (9)

2.2.4 计算单位功 (9)

2.2.5 计算油缸行程 (9)

2.2.6 计算油缸最大摆角m ∆α (10)

3 运动分析 (10)

3.1 原理阐述 (10)

3.2 液压缸中活塞运动的规律 (11)

3.3 驴头悬点的运动特性分析 (13)

3.4 驴头悬点运动分析结果 (14)

3.4.1 驴头悬点运动速度分析 (14)

4 液压系统的设计和液压元件的选择 (17)

4.1 液压系统的设计 (17)

4.2 液压元件的设计和选择 (18)

4.2.1 液压缸的设计 (18)