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实用新型
CN201650232U 一种双驴头前置式异相曲柄长冲程节能抽油机 失效 - 权利终止

一种双驴头前置式异相曲柄长冲程节能抽油机
摘要：
本实用新型涉及一种双驴头前置式异相曲柄长冲程节能抽油机，其特征在于异相曲柄(5)的一端通过曲柄销轴(18)安装在平衡块(4)上，异相曲柄(5)的另一端与与连杆(6)的一端相连接；连杆(6)的另一端安装在游梁(12)的前端；游梁(12)通过游梁轴承(13)安装在支架(16)上；驴头(8)安装在游梁(12)的前端，平衡驴头(14)安装在游梁(12)的后端，定滑轮(10)通过滑轮轴(9)安装在驴头(8)上；钢丝绳(11)的一端紧固在曲柄销轴(18)上，另一端绕过安装在驴头(8)上的定滑轮(10)与悬绳器(7)相连接。本实用新型具有结构简单、受力均匀、平衡效果好、增大冲程、降低能耗的优点。
摘要（英）：

The utility model relates to a dual-horse head superposed non-synchronous crank long stroke energy-saving beam-pumping unit, which is characterized in that one end of a non-synchronous crank (5) is arranged on the balance block (4) through a crank pin shaft (18), the other end of the non-synchronous crank (5) is connected with one end of a connecting rod (6), the other end of the connecting rod (6) is arranged on the front end of a walking beam (12), the walking beam (12) is arranged on a support (16) through a walking beam bearing (13), a horse head is arranged on the front end of the walking beam (12), a balance horse head (14) is arranged on the rear end of the walking beam (12), a fixed pulley (10) is arranged on the horse head (8) through a pulley shaft (9), one end of a steel wire rope (11) is fastened on the crank pin shaft (18), and the other end is connected with a rope hanger (7) around the fixed pulley (10) which is arranged on the horse head (8). The dual-horse head superposed non-synchronous crank long stroke energy-saving beam-pumping unit has the advantages of simple structure, uniform stress and excellent balance effect, increases the stroke, and reduces the energy consumption.

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