The frame is provided with a rocker driving motor, a crank and a crank connecting rod hinged between the motor and the first link rod.
在机架上设有摇臂驱动电机，一曲柄及曲柄连接杆铰接在该电机的轴和第一平行连杆之间。
One end of a connecting rod on both sides of the screw nut is connected with the pin of a sliding chassis, and the other end is hinged with the screw nut.
螺母两侧的连接杆一端与滑动机架上的销轴连接，另一端与螺母铰链。
The connecting rod on the cargo boom is hinged with a shaft (38) simultaneously, is extended and bulged to the external side to form a supporting shaft.
同时将起重臂上的连杆铰接轴（38），向外侧延伸凸出构成支撑轴。
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