The invention relates to the field of an energy dissipation and vibration reduction device for bridge and building structures to resist vibration caused by external loads, in particular to an infinitely adjustable clearance viscous damper and a use method thereof. The damper includes a shell, the shell is internally provided with pistons, the outer edges of the pistons slidably and sealingly makecontact with the inner wall of the shell, the left end of a piston rod is hinged to a lug, the upper and lower sides of the right end of the piston rod are fixedly provided with ear plates, the pistons on the upper and lower sides of the piston rod are provided with two tapered holes, the longitudinal center lines of the tapered holes are parallel to the piston rod, a sliding groove is internallyprovided with a throttling gear, the throttling gears on the left and right sides are connected through a reversing mechanism, the throttling gear on the right side is connected with an adjustment onthe piston rod, and a positioning device used for positioning the adjustment device is arranged on the ear plate above the right end of the piston rod. The infinitely adjustable clearance viscous damper can achieve infinite adjustment for different loads, the flow rate of viscous liquid is adjusted through cooperation of the tapered holes and a flow limiting block, different kinds of damping forceare generated, and the damper is wide in application range.

Infinitely adjustable clearance viscous damper and use method thereof

The utility model relates to an attached device field of protection manometer, concretely relates to a to novel manometer damping structure. Including the damping tube, set up porose fender in the damping tube, the through -hole that the hole kept off is the bell mouth, the left hole diameter of bell mouth is less than the hole diameter on bell mouth right side, the right side that the hole kept off is provided with the baffle, on the plate washer threaded connection have with the pin of damping tube with the axle center, the left end of pin is the conical end that corresponds with the bell mouth, be provided with on the pin on conical end right side and keep off the ring, it is provided with two stoppers of calling according to the axial direction wire pair of pin to keep off the ring onthe terminal surface that the hole kept off, distance between two stoppers is greater than the internal diameter that the hole kept off, closing cap and damping tube right -hand member sealing connection, be provided with the manometer with the damping tube intercommunication on the damping tube between hole fender and the baffle. The utility model discloses, the damping is effectual, and it is easy to process moreover, install, and simple structure is with low costs.

Li Tao

Papers

Novel manometer damping structure