阅读说明：本技术 一种水陆两栖飞机液压地面接头 (Hydraulic ground joint of amphibious aircraft ) 是由 操鸿 肖敏 印正锋 于 2019-10-12 设计创作，主要内容包括：本申请提供一种水陆两栖飞机液压地面接头,所述液压地面接头包括地面供压接头和地面吸油接头,地面供压接头用于与地面油车的供压接头连接,地面吸油接头用于与地面油车的吸油接头连接,所述液压地面接头设置在第一区域,所述第一区域包括飞机机翼与机身对接的区域。(The application provides an amphibious aircraft hydraulic pressure ground connects, hydraulic pressure ground connects including ground pressure supply to connect and ground oil absorption connects, and ground pressure supply connects and is used for pressing the articulate with the confession of ground oil truck, and ground oil absorption connects the oil absorption articulate that is used for with ground oil truck, hydraulic pressure ground connects the setting in first region, first region includes the region of aircraft wing and fuselage butt joint.)

1. The hydraulic ground joint of the amphibious aircraft is characterized by comprising a ground pressure supply joint and a ground oil suction joint, wherein the ground pressure supply joint is used for being connected with a pressure supply joint of a ground oil vehicle, the ground oil suction joint is used for being connected with an oil suction joint of the ground oil vehicle, the hydraulic ground joint is arranged in a first area, and the first area comprises an area where the wings of the aircraft are in butt joint with the fuselage.

2. An amphibious aircraft hydraulic ground joint as claimed in claim 1, further comprising a maintenance cover for covering and protecting the ground pressure supply joint and the ground oil suction joint.

3. An amphibious aircraft hydraulic ground joint as claimed in claim 1, characterised in that the ground pressure supply joint and the ground oil suction joint are both at a first predetermined range of included angles to the lower surface of the wing.

4. An amphibious aircraft hydraulic ground joint as claimed in claim 2, characterised in that the service flap comprises a quick release service flap.

5. An amphibious aircraft hydraulic ground joint as claimed in claim 3, characterised in that the first predetermined included angle comprises in the range 30 ° -45 °.

6. An amphibious aircraft hydraulic ground joint as claimed in claim 1, characterised in that the first region comprises a root region of an aircraft wing to fuselage interface.

7. An amphibious aircraft hydraulic ground joint as claimed in claim 6, wherein the aircraft wing to fuselage interface root region comprises an aircraft left wing to fuselage interface root region and an aircraft right wing to fuselage interface root region.

8. An amphibious aircraft hydraulic ground joint as claimed in claim 1, where the number of ground pressure supply joints is configurable in accordance with the aircraft hydraulic source system.

Technical Field

The invention belongs to an arrangement mode of a hydraulic ground maintenance joint of an amphibious aircraft, and relates to a hydraulic ground maintenance joint of an aircraft.

Background

The aircraft hydraulic ground maintenance joint is mainly used for connecting an aircraft with a ground hydraulic oil truck when the aircraft is parked on the ground and an engine is not driven, so that hydraulic pressure is provided for a user of an onboard hydraulic system, and the onboard system of a driver operates normally. The ground oil truck is in butt joint with the onboard hydraulic system through the ground maintenance joint. The hydraulic surface maintenance joints typically include a surface pressure supply joint and a surface suction joint, both of which form a hydraulic oil circuit. The hydraulic ground maintenance joint arrangement forms of the existing aircraft mainly include the following types:

a) the ground maintenance opening cover is arranged on the side surface of the nose landing gear cabin and is opened, so that ground maintenance personnel can conveniently approach the opening cover to maintain an onboard system;

b) arranged at the side of the fuselage. The arrangement position is higher than the side surface of the machine head, the openness is better, but the position is higher, and the escalator or the rack is generally required to be used for approaching maintenance;

c) arranged in an abdominal position under the fuselage of the aircraft. This arrangement also provides easy access for maintenance personnel, but since the belly position is close to the engine, the operating space is affected and there is a certain risk.

The existing ground joint arrangement mode is mainly arranged below an aircraft nose or an aircraft body, and mainly considers that maintenance personnel are convenient to approach and ground equipment is convenient to be butted with an aircraft. However, this arrangement is only suitable for land-based aircraft, and for amphibious aircraft, the lower region of the nose or fuselage will be immersed below the water surface when the aircraft is parked on water, and it is not possible to dock the aircraft with a ground tanker. Therefore, the traditional ground joint arrangement mode cannot meet the use requirements of the amphibious aircraft.

Disclosure of Invention

The invention provides a novel arrangement mode of hydraulic ground connectors of an amphibious aircraft, mainly aiming at the current situation that the traditional ground maintenance connector arrangement mode of the land-based aircraft cannot meet the maintenance requirement of the amphibious aircraft when the land-based aircraft is parked on the water surface, and particularly the traditional arrangement position is easily influenced by water waves and is inconvenient for butt joint of a ground oil tanker and the aircraft.

The application provides an amphibious aircraft hydraulic pressure ground connects, hydraulic pressure ground connects including ground pressure supply to connect and ground oil absorption connects, and ground pressure supply connects and is used for pressing the articulate with the confession of ground oil truck, and ground oil absorption connects the oil absorption articulate that is used for with ground oil truck, hydraulic pressure ground connects the setting in first region, first region includes the region of aircraft wing and fuselage butt joint.

Optionally, the aircraft hydraulic ground joint further comprises a maintenance cover for covering and protecting the ground pressure supply joint and the ground oil suction joint.

Optionally, the ground pressure supply joint and the ground oil suction joint are in a first preset included angle range with the lower surface of the wing.

Optionally, the maintenance flap comprises a quick release maintenance flap.

Optionally, the first preset included angle range includes 30 ° to 45 °.

Optionally, the first region comprises a root region where the aircraft wing interfaces with the fuselage.

Optionally, the root region where the wings of the airplane are butted with the fuselage includes a root region where the left wing of the airplane is butted with the fuselage, and a root region where the right wing of the airplane is butted with the fuselage.

Optionally, the number of ground pressure supply joints is configured according to the aircraft hydraulic source system.

Its advantage is that the arrangement position is higher, will not be influenced by the water wave and used; when the airplane is parked on the ground and the water surface, maintenance personnel and equipment can approach the airplane conveniently; the cover cap is arranged below the rear edge of the wing, so that maintenance personnel can conveniently approach, operate and maintain from the rear of the wing, and the area of the engine propeller is avoided; the maintenance opening cover is convenient to open, the joint is convenient to butt joint, and accumulated water is not easy to generate inside.

Drawings

FIG. 1 is a schematic general area view of an amphibious aircraft hydraulic ground joint arrangement as proposed by the present invention;

FIG. 2 is a schematic view of a hydraulic ground joint maintenance flap according to the present invention;

FIG. 3 is a schematic illustration of a hydraulic surface joint installation according to the present invention;

Detailed Description

The technical scheme of the hydraulic ground joint arrangement of the amphibious aircraft provided by the invention is as follows: a quick-release maintenance opening cover is arranged on the lower surface area of the root part of the trailing edge of the butt joint of the wing and the fuselage of the amphibious aircraft, and a hydraulic ground maintenance joint is integrally installed in the opening cover.

The arrangement area is as shown in figure 1, a cover is designed at the rear edge area of the lower surface of the root part of the wing; the design schematic diagram of the cover is shown in fig. 2, when the airplane is parked on the ground, a maintainer uses an escalator to approach the position of the cover for maintenance; when the aircraft is parked on the water surface, the position is higher than the water surface, a small boat can be used for conveying the ground oil tanker to the lower part of the wing, and maintenance personnel can conveniently butt the hydraulic hose of the oil tanker with the onboard maintenance joint. The installation schematic diagram of ground joint is like figure 3, and the ground joint in the maintenance flap all adopts the decurrent installation direction, and the maintainer operation of being convenient for is observed, and flap inside is also difficult for producing ponding. The arrangement mode gives consideration to two use modes of ground maintenance and water surface maintenance, and can meet the maintenance requirements of the amphibious aircraft in different use environments.

Compared with the previous arrangement modes, the arrangement solves the problem that when the amphibious aircraft is parked on the water surface, the lower part of the aircraft body can be submerged on the water surface, so that the hydraulic oil vehicle and the aircraft cannot be conveniently butted.

The hydraulic ground connector is arranged in the rear edge area of the lower surface of the root of the wing, so that during ground maintenance, a maintainer can operate conveniently by using the escalator, and during water surface maintenance, the maintainer can reach, operate and maintain conveniently by using transport equipment such as a boat and the like, and a propeller danger area is avoided. The arrangement mode takes two maintenance modes of the ground and the water surface into consideration, and is particularly suitable for the special use environment of the amphibious aircraft.