283results about How to "Reduce vibration intensity" patented technology

The invention discloses a vibrating equal-thickness flip-flow screen for multi-plastid activation. The flip-flow screen comprises an outer screen frame, a flip-flow body, an excitation device, a supporting frame, a T-shaped vibration isolation spring device and a screen plate, and the flip-flow body is fixedly arranged between two side plates of the outer screen frame to form a screen box; the excitation device is connected to the side face of the screen box through a main vibration spring; and the supporting frame and the outer screen frame are connected through the T-shaped vibration isolation spring device. The vibrating equal-thickness flip-flow screen for multi-plastid activation has the advantage that multi-plastid transverse vibration (which is beneficial to activating materials), equal-thickness screening and screen surface relaxation are achieved. The flip-flow screen only has transverse shearing dynamic load to the ground, a special vibration mode has a transverse activationeffect on materials, and the screening efficiency is high. The flip-flow screen surface makes the materials jump, and the hole blocking phenomenon is effectively eliminated. A motor is connected witha vibrating plastid small in amplitude, and the function of protecting the motor is achieved. The vibrating plastid and the screen box are flexibly connected through a plurality of sets of springs, sothat the stress of the whole structure is more reasonable.

The invention discloses a circuit board fixing device, and the device comprises a device bottom plate. The outer wall of the top of the device bottom plate is provided with four fixing device bodies,and the four fixing device bodies are respectively located at four corners of the device bottom plate. Each fixing device body comprises an adjustment stud, and the outer wall of the top of the devicebottom plate is provided with a sliding groove. Moreover, the profile structure of the sliding groove is concave, and the inner wall of the bottom of the sliding groove is provided with a row of adjustment grooves which are arranged at equal intervals. The adjustment studs are plugged in the adjustment grooves, and the outer walls of the studs are sleeved by a sliding plate which is located in the sliding groove. The outer wall of the top of the sliding plate is welded with a transmission column. The device is compact in structure, is practical and novel, can achieve the stable fixing effectfor the application, conveying and maintenance of a circuit board, brings convenience to a worker for operation and use, is suitable for the fixing of many types of circuit boards, and improves the convenience and practicality.