Embracing wheel mechanism of towbarless aircraft tow tractor

Abstract

The invention discloses an embracing wheel mechanism of a towbarless aircraft tow tractor. The embracing wheel mechanism comprises a platform, main arms, a transverse rod, auxiliary hydraulic cylinders, auxiliary connecting rods, a lock catch, a turntable, main connecting rods, telescopic arms, rear bumpers and jacking hydraulic cylinders. The turntable is arranged on the platform; the lock catch is arranged on the turntable; the transverse rod is arranged on the upper side of the front of the platform; the front ends of the auxiliary connecting rods sleeve two sides of the transverse rod, and the rear ends of the auxiliary connecting rods are hinged to two sides of the front end of the platform; the two main arms are parallelly arranged on two sides of the platform, and the front ends of the main arms are respectively hinged to two ends of the transverse rod; the fronts of the two telescopic arms are respectively inserted in the rears of the two main arms; the front ends of cylinder bodies on the two auxiliary hydraulic cylinders are hinged to a tow tractor by connecting shafts, and the outer ends of push rods are connected to the two sides of the front end of the platform; the upper portions of the two main connecting rods are hinged onto the telescopic arms, and the lower ends of the main connecting rods are hinged to the rear end of the platform. The embracing wheel mechanism has the advantages that traction management and control can be integrated with each other in airfields, the embracing wheel mechanism is optimized, and accordingly the tow tractor and an aircraft can be integrally connected with each other; the tow tractor can be maneuvered by pilots, and the sliding distances of the aircraft on the ground can be shortened to a great extent.

Description

technical field [0001] The invention belongs to the technical field of airport ground special equipment, in particular to a wheel-holding mechanism of a rodless aircraft tractor. Background technique [0002] Aircraft tractor is a special vehicle used to tow aircraft on the ground of the airport, which is divided into rod-type tractor and rod-less tractor. Among them, the rodless tractor is gradually replacing the traditional rod tractor due to the characteristics of no drawbar and light weight during operation. With the increase in the number of take-offs and landings of aircraft at the airport, higher requirements are put forward for the rodless tractor. Rodless tractors are developing in the direction of intelligence and airport control integration, and the wheel holding mechanism is the core device of the tractor, and its performance will directly affect the safety and efficiency of traction. [0003] At present, the commonly used wheel holding mechanism has the follow...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used wheel holding mechanism has the following problems: the nose landing gear of the aircraft is in a passive stress state during traction, and the height deflection of the nose landing gear and the wheels cannot be adjusted well according to the steering, thereby affecting the service life of the nose landing gear; When an accident occurs during towing, it is difficult to disengage the aircraft from the tractor, which is prone to safety accidents; it requires the participation of multiple professionals and frequent communication with the pilot, which is prone to communication confusion; due to institutional limitations, only in the aircraft Using a tractor when pushing out of the bridge does not reduce the taxiing distance of the aircraft

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