40results about How to "Mature control technology" patented technology

Disclosed is a discrete flexible die. An upper discrete die is connected with an upper sider of a press, a lower discrete die is combined with a base of the press and comprises a lower die support, a top supporting plate of the lower die support is assembled with hydraulic tensioning sleeves, oil supply of each hydraulic tensioning sleeves is realized through an oil pipe, a piezometer is mounted at the tail end of each row of the oil pipes, a punch is inserted into a middle round hole of each hydraulic tensioning sleeve, and an electric push rod is mounted below each punch; the upper discrete die comprises an upper die support, hydraulic tensioning sleeves are mounted on a middle supporting plate of the upper die support, oil supply of each hydraulic tensioning sleeve is realized through an oil pipe, and a piezometer is mounted at the tail end of each row of the oil pipes. Shape adjusting is realized by adopting the electric push rods controlled by a circuit, and the die punches are locked through the hydraulic tensioning sleeves after shape adjusting is completed; the punches is high in bearing capacity, thereby being capable of used for plate forming and part supporting; the whole discrete flexible die is simple in structure and low in manufacturing cost; two implementable schemes are provided for curved surface continuation after forming, and the discrete flexible die is high in efficiency, low in cost and free of environmental pollution.

The invention discloses grouped-type wood sawing equipment applied to the forest industry. The grouped-type wood sawing equipment comprises an equipment main frame; a rear vertical plate is arranged on one side of the upper part of the equipment main frame; a group of electric saw oil cylinders are arranged at one side of the rear vertical plate and are matched with electric saws; a front vertical plate is arranged at the middle part of the equipment main frame; a group of push head oil cylinders are arranged at the rear side of the front vertical plate; the front side of the front vertical plate is connected with a group of push plates through one group of springs; the rear vertical plate is provided with a push plate speed reducing motor; the push plate speed reducing motor is connected with a wire reeling wheel key; an arranging frame is arranged at the front part of the equipment main frame; a side baffle speed reducing motor is also arranged at the front part of the equipment main frame and is connected with a driving belt wheel key; the front end of the arranging frame is matched with a side baffle through a rotating shaft; a driven belt wheel is arranged at one end of the rotating shaft. The grouped-type wood sawing equipment applied to the forest industry can be used for sawing a long wood material into a group of short wood materials by one-time sawing action, is high in work efficiency and is capable of satisfying the supply requirements of the next procedure.

The invention discloses a low-rotational inertia servo motor, which belongs to the technical field of motors. The low-rotational inertia servo motor comprises a motor shell, an excitation stator ironcore, an armature stator iron core, a rotor iron core, an excitation winding, an armature winding and a shaft, and is characterized in that the disc-shaped rotor iron core is fixed on the shaft; the disc of the rotor iron core is provided with 4k uniformly-distributed fan-shaped through holes, and k is a positive integer; the two axial sides of the rotor iron core are provided with the excitationstator iron core and the armature stator iron core respectively; the excitation stator iron core is provided with 3k excitation stator poles protruding against one side of the rotor iron core, and theexcitation stator poles present a fan shape; and the armature stator iron core is provided with 3k armature stator poles protruding against one side of the rotor iron core, and the armature stator poles present a fan shape. The excitation winding and the armature winding in the technology are mutually isolated, the rotor iron core is only a disc with a large-area through hole, the rotational inertia is small, and the low-rotational inertia servo motor is facilitated.