It is an integrated product of machine, electricity and liquid, which is used for extracting coal seam gas from oil field production and coal mine. The utility model comprises a main machine (1), a counterweight bracket (2), a guide wheel set (3), a counterweight steel wire rope (4), a counterweight basket (5), a hydraulic station and an electric control box, etc.. The host is characterized in that: (1) through the lower part of the mounting bracket (6) is connected with the flange, upright on the wellhead; sucker rod rack (13) from the center hole (15) in and out of the fixed rod with a clip; under the control of the electric control box, hydraulic pressure oil hydraulic drive the motor (9) rotates; the hydraulic motor to rotate through the transmission gear of the motor (4) (10), (11), idler gear drive gear (12), driven by a pair of driving gear (14) opposite rotation; the driving wheel two oppositely rotating drive rack (14) (13). Next, by the rack movement; (13) to drive the sucker rod up and down reciprocating motion, realize the pumping action; the counterweight rope (4) is connected to one end of the rack (13) above, the other end of the two round of group (3) after reversing two times on the 90 degree reversing connection in the weight box (5 on the surface). The invention has the advantages of high energy efficiency, small volume, light weight and simple structure.
【技术实现步骤摘要】
【技术保护点】
一种液压马达驱动的直立式齿轮齿条抽油机，其整体结构包括七大部分，主机（１），配重支架（２），导向轮组（３），配重钢丝绳（４），配重篮（５），外加液压站和电控箱。主机（１）通过其下部的安装支架（６）与井口法兰相连，直立于井口之上；抽油光杆从齿条（１３）的中心孔（１５）中穿出，用光杆夹子固定；在电控箱的控制之下，液压站产生压力油驱动液压马达（９）转动；液压马达的转动通过传动箱（４）中的马达齿轮（１０）、惰齿轮（１１）、传动齿轮（１２）、带动一对驱动轮齿轮（１４）相向转动；两个相向转动的驱动轮（１４）驱动齿条（１３）上、下运动，抽油光杆随同齿条（１３）一起上、下往复运动，实现抽油动作；配重钢丝绳（４）一端连接在齿条（１３）的上方，另一端在安装于配重支架上的两个换向轮组（３）上两次９０度换向之后连接在配重箱（５）的上面。齿条罩（８）安装在箱体（７）的上方，套在齿条（１３）的外部。
【技术特征摘要】
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