| 摘要 |
FIELD: press-forging equipment, particularly screw presses. ^ SUBSTANCE: press comprises frame with guiding means in which slider, wheel, table and crank shaft are installed. Crank shaft cooperates with slider through connection rods and pins. Wheel is connected with screw through controlled couple. Slider is connected with screw and joined with nut by non-selfbraking thread. Press is provided with plates with power cylinder control, combs with spring-loaded rollers and sliding members installed in guiding means. Crank shaft has four elbows. Two cranks of the shaft have eccentricity lesser than that of two other ones. Slider has grooves. Rod necks of cranks with lesser eccentricity are connected with sliding members through connection rods. Sliding members cooperate with slider pins. Rod necks of cranks with greater eccentricity are connected to plates through control rods. Plates are movably installed in slider grooves and cooperate with combs. ^ EFFECT: simplified structure, reduced size and increased press reliability. ^ 2 dwg |
