A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a brake system and a brake method of an automatic revolving door. The technical scheme of force resolution and force inversion on an inclined surface is adopted in order to change the direction of a part of an impact force during braking, so that the impact force along the forwarding direction of a door wing is reduced, the resolved force is vertical to the direction of the impact force and is used as positive pressure of a bearing system of the revolving door, the positive pressure is overlapped with the original positive pressure of the bearing system, and the total positive pressure is increased; since a friction force is equal to the product of the positive pressure and a friction coefficient, the brake force is increased, and the impact force is reduced; meanwhile, the positive pressure (Fz) resolved from the impact force acts on the position above an outer top rail of the revolving door and has a restraining function on the vertical direction of the revolving door, so that the shaking of the door wing during braking is effectively reduced. According to the brake system disclosed by the invention, a brake wheel adopted by the brake system is a metal wheel which is externally coated with polyurethane, the brake wheel deforms in the diameter direction when the Fz acts on the brake wheel, and the impact force does work in the vertical direction, so that energy generated by the impact force is consumed, and the impact is reduced.
The invention discloses a brake system and a brake method of an automatic revolving door. The technical scheme of force resolution and force inversion on an inclined surface is adopted in order to change the direction of a part of an impact force during braking, so that the impact force along the forwarding direction of a door wing is reduced, the resolved force is vertical to the direction of the impact force and is used as positive pressure of a bearing system of the revolving door, the positive pressure is overlapped with the original positive pressure of the bearing system, and the total positive pressure is increased; since a friction force is equal to the product of the positive pressure and a friction coefficient, the brake force is increased, and the impact force is reduced; meanwhile, the positive pressure (Fz) resolved from the impact force acts on the position above an outer top rail of the revolving door and has a restraining function on the vertical direction of the revolving door, so that the shaking of the door wing during braking is effectively reduced. According to the brake system disclosed by the invention, a brake wheel adopted by the brake system is a metal wheel which is externally coated with polyurethane, the brake wheel deforms in the diameter direction when the Fz acts on the brake wheel, and the impact force does work in the vertical direction, so that energy generated by the impact force is consumed, and the impact is reduced.
Brake system and brake method of automatic revolving door
2015-04-29
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung