CN115476965A - A traction device for an unmanned aerial vehicle - Google Patents

Abstract

The invention discloses a traction device for an unmanned aircraft, comprising a tower, the tower is installed on a mother ship through a mounting base, a slewing bearing is provided between the tower and the mounting base, and a telescopic frame is provided on the front side of the tower The boom, the telescopic boom is hingedly connected with the tower, the top of the telescopic boom is provided with several pulleys, the upper part of the telescopic boom is provided with a traction winch and a telescopic oil cylinder, and the traction rope on the traction winch is connected with the aircraft through pulleys. There is a luffing oil cylinder between the boom and the tower, the cylinder body of the luffing oil cylinder is hingedly connected with the tower frame, the piston rod of the luffing oil cylinder is hingedly connected with the telescopic boom, and an electric control box is installed on the rear side of the tower frame. The top of the frame is provided with a multi-way valve, and the multi-way valve is connected with the traction winch, telescopic oil cylinder and luffing oil cylinder through pipelines.

Description

A traction device for an unmanned aerial vehicle

technical field

The invention relates to a traction device for an unmanned aerial vehicle.

Background technique

With the continuous development of marine science and technology, unmanned aerial vehicles have been widely used in the fields of marine scientific exploration, marine resource development, and national defense capacity building. However, the working sea conditions of unmanned aerial vehicles are complex and changeable, and its recovery operation is extremely risky. Under severe sea conditions, it is very easy to cause personal injury and equipment damage during the recovery process. overall work efficiency. Therefore, it is necessary to design a traction device specially used for unmanned aircraft. During the recovery process of the aircraft, the traction device keeps the aircraft parallel to the mother ship and tows at the same speed, and then adjusts the aircraft and the device for retracting and releasing the aircraft. The relative attitude of the aircraft can improve the recovery efficiency of the retractable aircraft, thereby improving the overall working efficiency of the aircraft. At the same time, it prevents the collision between the aircraft and the mother ship, and reduces the risk of equipment damage during the operation.

Contents of the invention

The object of the present invention is to provide a traction device for an unmanned aerial vehicle in order to solve the above deficiencies in the prior art.

A traction device for an unmanned aerial vehicle, including a tower, the tower is installed on a mother ship through a mounting base, a slewing bearing is provided between the tower and the mounting base, and a telescopic boom is provided on the front side of the tower. The boom is hingedly connected with the tower. There are several pulleys on the top of the telescopic boom. A traction winch and telescopic oil cylinder are arranged above the telescopic boom. The traction rope on the traction winch is connected to the aircraft through pulleys. The telescopic boom is connected to the tower. There is a luffing oil cylinder between the frames, the cylinder body of the luffing oil cylinder is hingedly connected with the tower frame, the piston rod of the luffing oil cylinder is hingedly connected with the telescopic boom, the rear side of the tower frame is equipped with an electric control box, and the top of the tower frame is set The multi-way valve is connected with the traction winch, telescopic oil cylinder and luffing oil cylinder through pipelines.

As a further improvement, the traction device has two kinds of rope-threading structures, which can be either front or rear, which increases the adjustability of the arrangement of the traction device and the retracting device.

As a further improvement, the tower has a box-shaped structure and is equipped with installation interfaces for slewing bearings, telescopic booms, luffing cylinders, multi-way valves, electric control boxes, etc., while taking into account the functions of hydraulic oil tanks, with compact layout and large installation space. Small, reducing the workload of installation on board.

As a further improvement, the installation base adopts a double-flange connection type, the upper flange and the outer ring of the slewing bearing are connected by bolts, and the lower flange and the shipyard preset base are connected by bolts, the installation space is small, the installation is convenient and fast, and the small The installation and use requirements of the volume mother ship.

As a further improvement, the slewing bearing adopts an external gear type, the slewing bearing is installed between the installation base and the tower, the outer ring of the slewing bearing is connected with the installation base by bolts, and the inner ring is connected with the tower by bolts.

As a further improvement, the installation position of the hydraulic slewing device is located at the edge of the tower, and there is a large enough space inside the tower as a hydraulic oil tank, which provides conditions for integrating the hydraulic system on the main body of the traction device.

Beneficial effect:

1. The traction device tows the aircraft to sail at the same speed as the mother ship. Changing the length of the towing cable and the attitude of the tow arm can adjust the relative attitude between the aircraft and the device for retracting and releasing the aircraft, and improve the success rate of recovering the aircraft, thereby improving navigation. The overall working efficiency of the aircraft can be improved, and the collision between the aircraft and the mother ship can be prevented at the same time.

2. The traction device integrates the electronic control system and hydraulic system on the body, with compact layout, convenient transportation, small installation space, convenient installation, easy installation on board, improving the overall working efficiency of the aircraft, and meeting the needs of small-sized mother ships installation and use requirements.

3. The traction rope can be pulled out from the front or back, which increases the adaptability of different layout requirements and facilitates installation on board.

Description of drawings

Fig. 1 is the front view of traction device;

Fig. 2 is the top view of the traction device under the rope-out state before the traction rope;

Figure 3 is a top view of the traction device in the state of pulling out the rope after the traction rope

1. Electric control box 2. Multi-way valve 3. Traction winch 4. Telescopic cylinder 5. Pulley 6. Hydraulic rotary device 7. Installation base 8. Tower frame 9. Slewing bearing 10. Luffing cylinder 11. Telescopic boom 12. aircraft.

detailed description

In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

As shown in Figures 1 to 3, a traction device for unmanned aerial vehicles includes an electric control box 1, a multi-way valve 2, a traction winch 3, a telescopic cylinder 4, a pulley 5, a hydraulic turning device 6, and a mounting base 7 , tower frame 8, slewing bearing 9, luffing oil cylinder 10, telescopic boom 11 and aircraft 12.

The traction device is based on a telescopic structure design, which has a simple structure, a large operating range and a small installation space. It is mainly composed of an installation base 7, a slewing bearing 9, a tower 8, a telescopic boom 11, a pulley 5, a hydraulic system and an electric control system.

The installation base 7 adopts a double-flange connection type, the upper flange and the outer ring of the slewing bearing 9 are connected by bolts, and the lower flange is connected with the preset base of the shipyard by bolts, the installation space is small, the installation is convenient and fast, and it meets the installation of a small-scale mother ship Usage requirements.

The tower frame 8 adopts a box-shaped structure design. In addition to providing installation interfaces for the slewing bearing 9, the hydraulic slewing device 6, the telescopic boom 11, the luffing cylinder 10, and the electric control box 1, the interior serves as a hydraulic oil tank and provides a multi-way valve 2 The installation interface of hydraulic components, etc.

The slewing support 9 is installed between the installation base 7 and the tower frame 8, the outer ring of the slewing support 9 is bolted to the installation base 7, and the inner ring is connected to the tower frame 8 by bolts. The slewing ring 9 adopts the external gear type, driven by the hydraulic slewing device 6, and adopts the external meshing driving mode. The installation position of the hydraulic slewing device 6 is located at the edge of the tower 8, and there is enough space inside the tower 8 to be used as a hydraulic oil tank. It provides conditions for integrating the hydraulic system on the main body of the traction device.

The electric control system and hydraulic system are integrated on the main body of the traction device, which is convenient for transportation. When installing on a ship, the hydraulic system has no pipelines to connect, and the electric control system only needs to connect a general power line to the electric control box 1. In terms of structure, only the bolts are needed to connect the mounting base 7 with the preset base of the shipyard, which greatly reduces the need for installation. The workload of the boat installation. The traction device has a compact layout and is easy to install, which meets the needs of fast installation on board, improves the overall work efficiency of the aircraft 12, and also meets the installation and use requirements of a small mother ship.

One end of the traction rope is wound on the traction winch 3, and the other end passes through the pulley 5 and is fixed on the telescopic boom 11. According to the layout requirements of the actual ship, the traction rope can be pulled out from the front or back, which increases the requirements for different layouts Adaptability, easy installation on board.

Driven by the hydraulic system, the traction unit can be turned out for outboard operation or inboard for storage. The gear of the hydraulic slewing device 6 meshes with the outer teeth of the slewing support 9. Since the outer ring of the slewing support 9 is fixed on the installation base 7 by bolts and cannot move, the inner ring of the slewing support 9 will perform a slewing motion. The inner ring of the slewing support 9 and the tower 8 are fixed together by bolts, and drive tower frame 8, telescopic boom 11 etc. to do rotary motion together. After the traction device is turned outboard, the telescopic oil cylinder 4 and the luffing oil cylinder 10 are manipulated. Under the push of the telescopic oil cylinder 4 and the luffing oil cylinder 10, the telescopic boom 11 of the traction device can stretch out a certain length and zoom downward, and at the same time Manipulate the traction winch 3 and lower the traction rope to the water surface, fix several floating balls on the traction rope, the seawater movement will break up the floats, expand the traction rope circle, and improve the success rate of the aircraft 12 to the greatest extent. After the hooking is successful, the traction winch 3 tightens the traction rope loops together, and the traction device tows the aircraft 12 to sail at the same speed as the mother ship, and changes the length of the traction rope and the attitude of the traction arm to adjust the aircraft 12 and retractable aircraft 12. The relative attitude of the device can improve the success rate of recovering the aircraft 12, thereby improving the overall working efficiency of the aircraft 12, and at the same time prevent the aircraft 12 from colliding with the mother ship.

In order to prevent the excessive impact of sea waves from damaging the traction device, an ear plate is reserved at the front and back of the telescopic boom 11 for hanging auxiliary wire ropes. After the traction device adjusts the relative posture of the aircraft 12 and the device for retracting the aircraft 12, the auxiliary steel wire rope pre-hanged on the telescopic boom 11 is fastened to the mother ship, so as to reduce the sea waves when the traction device tows the aircraft 12 shock. When the traction rope comes out from the front, hang the auxiliary steel wire rope on the reserved rear ear plate to tighten the traction device backward; when the traction rope is from the rear, hang the auxiliary steel wire rope on the reserved front ear plate to Tighten the towing device at the front. In addition, the hydraulic actuators are equipped with two-way overload protection valves. The setting pressure of the overload protection valves is about 1.25 times the rated working pressure, that is, when the external load is greater than 1.25 times the rated load, the hydraulic rotary device 6. Width oil cylinder 10, telescopic oil cylinder 4, traction winch 3 all can skid, to guarantee that traction device can not overload damage.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. A traction device for unmanned aerial vehicle, it is characterized in that, comprises tower frame, and tower frame is installed on the mother ship by installation base, is provided with slewing bearing between tower frame and installation base, and the front side of tower frame is provided with There is a telescopic boom, and the telescopic boom is hingedly connected with the tower. There are several pulleys on the top of the telescopic boom, and a traction winch and a telescopic oil cylinder are arranged above the telescopic boom. The traction rope on the traction winch is connected to the aircraft through pulleys. , There is a luffing cylinder between the telescopic boom and the tower, the cylinder body of the luffing cylinder is hingedly connected with the tower, the piston rod of the luffing cylinder is hingedly connected with the telescopic boom, and an electric control box is provided at the rear of the tower , the top of the tower is provided with a multi-way valve, and the multi-way valve is connected with the traction winch, telescopic oil cylinder and luffing oil cylinder through pipelines. 2. A traction device for an unmanned aerial vehicle according to claim 1, characterized in that, the traction device has two types of rope-threading structures, which can be used for pulling out the rope before or after. 3. A traction device for an unmanned aerial vehicle according to claim 1, wherein the tower is a box-shaped structure and is provided with a slewing bearing, a telescopic boom, a luffing cylinder, a multi-way The installation interface of valves, electric control boxes, etc., while taking into account the function of the hydraulic oil tank. 4. A traction device for unmanned aerial vehicle according to claim 1, characterized in that, the mounting base adopts a double-flange connection type, the upper flange and the outer ring of the slewing bearing are connected by bolts, and the lower end The flange and the shipyard preset base are bolted together. 5. A traction device for unmanned aerial vehicle according to claim 1, characterized in that, the said slewing bearing adopts the external gear type, and the slewing bearing is installed between the installation base and the tower, and the outer gear of the slewing bearing is The ring is bolted to the mounting base, and the inner ring is bolted to the tower. 6. A traction device for an unmanned aerial vehicle according to claim 1, wherein the installation position of the hydraulic turning device is located at the edge of the tower.

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