Radially-braking mechanical damper

Abstract

The invention discloses a radially-braking mechanical damper. The radially-braking mechanical damper comprises an outer sleeve drum with a damper. The outer sleeve comprises an inertial wheel drum and a screw rod drum. One end of the inertial wheel drum is connected to one end of the screw rod drum. The diameter of the inertial wheel drum is larger than that of the screw rod drum. The other end of the inertial wheel drum is provided with a left end cover. The damper further comprises a right bearing head, a connecting pipe, a ball nut, a ball screw rod, an inertia wheel mechanism and friction rings. The connecting pipe is arranged in the screw rod drum. One end of the connecting pipe is connected to the right bearing head arranged at the other end of the screw rod drum. The other end of the connecting pipe is connected with the ball nut. One segment of the ball screw rod is arranged in the connecting pipe and the other segment of the ball screw rod penetrates through the ball nut to be arranged in the inertial wheel drum. The other segment of the ball screw rod is connected to the inertia wheel mechanism through a key. The inner wall, corresponding to the inertia wheel drum, of the inertia wheel mechanism is provided with the friction rings. The radially-braking mechanical damper has the following beneficial effects: the radially-braking mechanical damper is simple in structure and convenient in installation; by removing a brake disc drum, a steel ball, a steel ball seat and other parts, machining precision is only around IT18; the recruitment for assembly precision is lowered; and cost is saved.

Description

technical field [0001] The present invention relates to mechanical dampers, and more particularly, to a mechanical damper for radial braking. Background technique [0002] Dampers are divided into two categories: vibration reduction and energy dissipation and anti-vibration supports. [0003] It is used for vibration reduction and energy dissipation in aerospace, aviation, military industry, guns, automobiles and other industries. Vibration-reducing and energy-dissipating damper is a speed-dependent damper without stiffness. It is installed in engineering structures and other places, which is equivalent to installing a "safety airbag". When external stimuli come, the damper can absorb and consume external excitation input to the maximum extent. energy to achieve the purpose of energy dissipation and vibration reduction. Since the 1970s, people have gradually transferred these technologies to structural engineering such as buildings, bridges, and railways, and their develop...

AI Technical Summary

Problems solved by technology

[0006] The mechanical dampers currently on the market use a ball screw structure to convert linear motion into rotary motion, driving the inertial flywheel structure to rotate, and the way to brake the flywheel is axial braking, using steel ball brake discs Structure When the speed of the flywheel increases, the brake disc is pressed against the brake seat to achieve braking. The structure of this braking method is relatively complicated, and many components such as steel balls, steel ball seats, flywheels, and brake discs are required. Parts require high machining accuracy, most of the parts require IT6-IT7 level machining accuracy, and the parts are highly matched, difficult to assemble, and costly. Moreover, the overall length of such a damper is long, and the length of the stop structure is at least Need 100mm, not easy to install

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