DRIVE MECHANISM FOR ROCKER MACHINE

摘要

The invention relates to oil/gas mechanical engineering, in particular, to oil production machinery and equipment and can be used a ground mechanical drive of sucker-rod pumps for oil production. The technical result provides lesser metal consumption and sizes of a rocker machine mechanical drive. The rocker machine mechanical drive comprises a crank pair, a post, a saddle bearing, a double-arm rocker bar with a front arm, a weight is fixed thereon, and a rear arm, a double-arm rod with an eye in the middle part, which is pivotally connected to the rear arm of the double-arm rocker bar and the rod, wherein the double-arm rod is connected by its front arm to the suspension point of a pipe string and the rear arm is pivotally connected by an additional rocker arm with a post.