Braking device and boarding bridge

Abstract

The invention discloses a brake device and a boarding bridge. The boarding bridge includes a passage circular platform, an airport pickup opening and a rotary driving device. The rotating driving device comprises a driving motor mounted on the airport pickup opening, a driving wheel mounted on the output shaft of the driving motor, two driven wheels mounted on the airport pickup opening, and a driving belt. The driving belt is matched with the driving wheel and the driven wheels, and the two ends of the driving belt are fixed on the passage circular platform. The braking device comprises a retaining member and at least one set of brake assembly. The retaining member is fixed on the passage circular platform. The brake assembly includes a movable assembly movably mounted on the airport pickup opening and an elastic member and a control assembly with pre-load force. Under normal working condition, the control assembly is in contact with the elastic member to balance the pre-load force; and when the driving belt is loose or broken, the control assembly separates from the elastic member, the movable assembly moves to the retaining member under the pre-load force of the elastic member and is matched with the retaining member to achieve the brake. According to the brake device and the boarding bridge, the braking device is timely and reliable in the brake.

Description

technical field [0001] The invention relates to a brake device and a boarding bridge. Background technique [0002] The pick-up port is the part that is in direct contact with the aircraft door when the boarding bridge and the aircraft are docked. The port is pivotally connected to the aisle of the aerobridge and driven by a rotary drive to rotate around the aisle round table of the aerobridge. [0003] The existing rotating drive device for the machine port is composed of a drive motor, a chain, a sprocket, etc., wherein the drive motor is fixedly installed on the machine port, and the drive sprocket is connected to the output shaft of the drive motor through a suitable reduction mechanism. The chain is fixed on the aisle of the boarding bridge, and in particular, on the outer periphery of the aisle. The chain meshes with the drive sprocket and with the appropriate intermediate sprocket. When working, the driving motor rotates, so that the driving sprocket rotates while ...

AI Technical Summary

Problems solved by technology

[0007] But above-mentioned prior art scheme also has some defects, such as the reflection of chain fracture is hysteresis, and the driving device of normal operation can't point out the situation of chain fracture; large, thereby increasing the follow-up maintenance cost; and although detection devices and alarm devices are installed, there are no further measures to deal with broken chains, so it is impossible to avoid equipment damage caused by broken chains and accidents that even endanger the safety of personnel

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