An aircraft refueling vehicle equipped with an automatic transmission

Abstract

The invention relates to an aircraft refueling vehicle with an automatic gearbox. The aircraft refueling vehicle comprises the automatic gearbox, a power taking device with a clutch, a chassis electric control system, a Deadman control system and an electric hydraulic control system. In the manner of connecting an uploading logic electric control signal with the chassis electric control system, the purpose of automatically controlling the chassis state through the uploading operation is achieved, the functions of a time sharing operating system of the power taking device, an operation neutral position, gear interlock restraining, parking / traveling operation braking interlocking, and the like, are realized, and thus the running safety of the aircraft refueling vehicle is effectively guaranteed. The aircraft refueling vehicle is high in operability and novel in conception; and the automatic control on the uploading operation trigger is introduced, so that the labor intensity of the operating personnel is greatly reduced and the operation is more convenient and reliable under the condition of guaranteeing the accurate control on the vehicle state in the operation process of the aircraft refueling vehicle. The system power consumption is greatly reduced by the realized time-sharing operation of the power taking device, so that the purposes of saving energy and protecting environment can be achieved.

Description

technical field [0001] The invention relates to an aircraft refueling vehicle, in particular to an aircraft refueling vehicle equipped with an automatic transmission, and belongs to the technical field of aerospace machinery. Background technique [0002] Aircraft refueling vehicle is a special vehicle widely used in the aviation fuel supply industry at present. It is composed of a special vehicle chassis and a special device for aviation fuel supply (that is, the bodywork). The bodywork mainly includes the oil pump system, oil tank assembly, control room, hydraulic system, Logic control system, lifting platform, etc. Its working principle is: the power is provided by the power take-off of the second-class automobile chassis, and the power is transmitted to the centrifugal pump and the hydraulic pump through the power take-off transmission distribution system, and the oil receiving equipment is connected through the hydraulic system. . Due to the special environment and op...

AI Technical Summary

Problems solved by technology

In the first two types of power distribution methods, the centrifugal pump and the hydraulic pump operate synchronously. No matter what the operating conditions are, one of the operating types is in an invalid state of no-load operation, which increases the power consumption of the system and the wear of the parts.

Although the third type of power distribution method can control the operation of the main operation and the auxiliary operation in time, due to the high power requirements for driving the centrifugal pump, the entire hydraulic system is often very complicated, and the loss of hydraulic oil is also large. Moreover, due to the low hydraulic efficiency, it is not conducive to reducing vehicle power consumption and daily maintenance costs

The fourth type of power take-off distribution method is usually installed in the mechanical transmission, and the power take-off itself does not have a clutch structure. Although it can realize the independent control of the main and auxiliary operation power take-offs, it is limited by the off-board clutch of the mechanical transmission. The lack of control structure still cannot realize convenient time-sharing operation of power take-off

[0004] According to the applicant's knowledge, the interlock control of the operation is usually limited to the control of the parking brake system, that is, the parking brake takes effect during operation, but the power transmission of the chassis transmission system is not cut off from the hardware equipment, resulting in the normal operation of the system. Under the operating conditions, the operation vehicle can still be moved by the operation of the low gear and large throttle in the interlock state, which will lead to the operation safety accident

The invention patent with the patent number ZL201210181271.2: a refueling vehicle interlock speed limit control system proposes the neutral control of the work interlock, but the interlock braking method is still limited to the parking brake. The non-working state interlock triggering caused by the occasional out-of-position phenomenon of the middle actuator cannot effectively prevent the safety hazards caused by high-speed application parking and the damage to the structural parts of the vehicle

Images