Kinds of screw vertically retractable screw drive mechanism swl35 screw lift, characterized by having a movable slide, fixed station body, screw, nut saddle seat, eccentric cam, one-way clutch ratchet sets, spring, guide key; nut seat fixed on the table body, screw hole through the shaft nut and eccentric cam seat, left and right ends of the journal are supported by its screw front and rear ends of the vertical walls of the activities slipway long waist shaped shaft hole screw jacks, the long axis of the waist-shaped long hole is in the vertical direction; so that the screw only in the vertical direction of the major axis of the kidney-shaped aperture, for moving upward or downward movements, the wire screw lift the bar up and down movement is determined by the eccentric cam curve to achieve, and the one-way clutch ratchet sets, between the end face of one arm and cam nut seat is located, is connected with the screw by turning the key; in the end face of the sleeve there one (or more) one-way ratchet clutch type; and the end face of the cam corresponding one (or more) one-way mating detents, pawl and ratchet these grooves respectively, by a vertical and an inclined surface constitution; by the end face of the axial compression spring ratchet cam sleeve and pressed together. DG series A series of electric electric putter putter that is mainly used in a variety of push-pull heavier loads movement of the actuator. Such as metallurgical equipment, stage equipment and sewage treatment equipment. ● Overall structure: the motor and putting in the same direction, but with different axes. ● Internal Structure: Gearbox and trapezoidal screw deputy components. ● stroke control: stroke control means or external encoder implementation. ● Overload: The combination of spring and the relay structure to achieve. Screw jacks, screw lift Xiangfan, Runchi gear reducer by Texas Runchi Limited. Texas Runchi reducer Limited (www.sddzjsj.com) strong, credible, in Dezhou reducer, gearbox industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Runchi reducer and you hand into the brilliant, for a better future!