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Application Of Small Uni-directional Rotary Dampers
Edit: Dongguan Longji Plastic Electronic Co.,Ltd    Date: Aug 04, 2017

     The unidirectional resistance rotary damper is characterized in that the inclusion section is provided with a shaft shoulder, the shaft shoulder is provided with two horn-shaped oil trough which allows the damping oil to pass through, the oil trough extends along the circumference direction, and the cross section is gradually reduced along the direction of the separator plate as described in the flip opening process.Small Uni-directional Rotary Dampers
    A unidirectional resistance rotary damper comprises a hinge and a cover body connected with the rotating shaft, the rotating shaft comprises an inner part of the cover and an exposed section connected with the cover body, wherein the exposed section is sheathed with a sealing cover, wherein the sealing cover is connected with the cover body through a sealing ring; a sealing cavity filled with a damping oil is synthesized by the sealing cover, the inner wall of the cover body and the surface of the containing section, and the inner wall of the cover body is provided with a two-facing protruding separating plate, wherein the end part of the separating plate is matched with the surface of the inner part, The sealing cavity is characterized in that the inclusion section is provided with a two V-shaped groove, and the end of the card groove has a gap between the inner walls of the cover body.Small Uni-directional Rotary Dampers
    A blade is arranged inside the card groove, and a plurality of oil holes are arranged on the Blades, the outer end part of the blade is fit with the wall of the cover body without clearance to form an oil seal structure, and the separating plate and the blade are separated into four cavities by the said sealing cavity; In the flip opening and resetting process, the blades are respectively fitted with the wall surfaces of the two sides, and the blades are arranged with a first notch on the wall surface of the card groove on which the blade of the clamshell reduction depends.Small Uni-directional Rotary Dampers
    In the process of the reset, when the hinge rotates, the wall with the first notch is close to the side of the blade, and the wall of the card groove can not completely close the oil hole on the blade, and the damping oil can pass through the oil hole smoothly. The overall damping force of the damper is smaller. At the same time, the separator plate is sliding along the oil trough, and the cross section area of the oil trough is changed from small to large. And the end of the separator plate is first swept over the ellipse without the second notch, and then sweep the oval part with the second notch when the oil spill is small, which accelerates the fast flow of the drag oil, which helps to reduce the damping force.Small Uni-directional Rotary Dampers
    Further, the cross-section of the embedded section is an ellipse with a second notch, and the opening position of the second notch is at the same side of the big-hole position of the horn-shaped oil trough; During the flip opening process, the end of the separator plate is swept over the oval part with the second notch, then the ellipse without the second notch is swept, and the oil leakage in the process of slow down is first big and small, and the slow drop effect is first and then slow.Small Uni-directional Rotary Dampers

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