An anti-sway aircraft tractor for large ships

Abstract

The present invention belongs to the technical field of rodless aircraft towing equipment, and specifically relates to an anti-sway aircraft towing vehicle for large ships. Compared with the prior art, when the large ship sways, a sway measurement device is provided on the towing vehicle body to automatically adjust the adsorption force of the adsorption device on the deck surface according to the sway state, without manual judgment. This not only increases the environmental adaptability, safety and working stability of the aircraft support equipment, but also greatly reduces the difficulty of manual operation. The ship is different from the land and is an unstable platform, with a large amount of irregular swaying all the time. There is not only the swaying caused by sea waves, but also the swaying caused by the platform's own maneuvering, which is difficult to predict. When the traditional towing vehicle operates, only its own gravity is used to generate the grip force. During swaying, it will roll over, skid, and have difficulty in driving due to insufficient grip force. In severe cases, it may even cause damage to the aircraft.

Description

Technical Field

[0001] The present invention belongs to the technical field of rodless aircraft towing equipment, and particularly relates to an anti-sway aircraft tractor for large ships. Background Art

[0002] Existing rodless aircraft tractors have been widely used in various land airport fields. However, with more and more offshore operation platforms being equipped with flight equipment such as helicopters, aircraft tractors have begun to be used in aircraft support on large ships. Different from land, a large ship is an unstable platform with a large amount of irregular swaying at all times. There is not only the swaying caused by sea waves, but also the swaying caused by the platform's own maneuvering, which is difficult to predict. When traditional tractors operate, they rely only on their own gravity to generate grip force. During swaying, they will have situations such as rollover, vehicle slipping, and difficult driving due to insufficient grip force. In severe cases, it may even cause damage to the aircraft. Therefore, a new type of tractor is needed to handle offshore towing operations. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that a ship is different from land and is an unstable platform with a large amount of irregular swaying at all times. There is not only the swaying caused by sea waves, but also the swaying caused by the platform's own maneuvering, which is difficult to predict. When traditional tractors operate, they rely only on their own gravity to generate grip force. During swaying, they will have situations such as rollover, vehicle slipping, and difficult driving due to insufficient grip force. In severe cases, it may even cause damage to the aircraft. To solve the above problems, the present invention provides an anti-sway aircraft tractor for large ships.

[0004] The purpose of the present invention is achieved in the following way: An anti-sway aircraft tractor for large ships includes a tractor body. A sway measurement device is provided on the tractor body, and an electromagnetic adsorption device is provided on the side of the tractor body. The electromagnetic adsorption device includes a mounting frame, a spring, a movable column, a locking pin, and a locking spring. A mounting frame is provided on the side of the tractor body, a movable column is penetrated through the mounting frame, a spring is provided on the outer surface of the movable column, a support frame is provided on one side of the top of the mounting frame, a locking pin is penetrated through the support frame, a locking spring is provided on the outer surface of the locking pin, and an electromagnet is provided inside the movable column.

[0005] A spring is provided on the outer surface of the part of the movable column located inside the mounting frame, a limit column is provided on the part of the locking pin located inside the support frame, and the locking spring is provided between the support frame and the limit column.

[0006] The electromagnetic adsorption devices are symmetrically provided around the tractor body, and four groups of electromagnetic adsorption devices are provided.

[0007] A control system is provided inside the tractor body, and the control system, the sway measurement device, and the electromagnet are electrically connected.

[0008] Compared with the prior art, when the large ship sways, a sway measurement device is provided on the tractor body, which can automatically adjust the adsorption force of the adsorption device on the deck surface according to the sway state without manual judgment. This not only improves the environmental adaptability, safety and working stability of the aircraft support equipment, but also greatly reduces the difficulty of manual operation. Since the ship is different from the land and is an unstable platform with a large amount of irregular swaying at all times, including not only the swaying caused by sea waves but also the swaying caused by the platform's own maneuvering, which is difficult to predict. When the traditional tractor operates, it only relies on its own gravity to generate the gripping force. During swaying, it will roll over, skid, and have difficulty in driving due to insufficient gripping force. In severe cases, it may even cause damage to the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a perspective view of an anti-sway aircraft tractor for large ships.

[0010] Figure 2 is a perspective view before and after the electromagnetic adsorption device of an anti-sway aircraft tractor for large ships adsorbs.

[0011] Among them, 1. Tractor body, 2. Sway measurement device, 3. Electromagnetic adsorption device, 301. Installation frame, 302. Spring, 303. Movable column, 304. Locking pin, 305. Locking spring. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0013] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0015] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it will not be necessary to further define and explain it in subsequent figures.

[0016] In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0017] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0019] Embodiment 1:

[0020] As shown in the attached Figure 1-2A sway-preventing aircraft tractor for large ships is shown, including a tractor body 1. A sway measurement device 2 is arranged on the tractor body 1, and an electromagnetic adsorption device 3 is arranged on the side of the tractor body 1. The electromagnetic adsorption device 3 includes a mounting frame 301, a spring 302, a movable column 303, a locking pin 304 and a locking spring 305. The mounting frame 301 is arranged on the side of the tractor body 1, and the movable column 303 is arranged through the mounting frame 301. The spring 302 is arranged on the outer surface of the movable column 303. A support frame is arranged on one side of the top of the mounting frame 301, and the locking pin 304 is arranged through the support frame. The locking spring 305 is arranged on the outer surface of the locking pin 304. An electromagnet is arranged inside the movable column 303. The tractor body 1 is a traditional rodless aircraft tractor. The sway measurement device 2 is installed inside and is fixedly connected to the tractor body 1. When the tractor body 1 sways, there is no change in the relative position between the two. The sway measurement device 2 can measure the sway condition of the tractor 1 following the large ship in real time; the electromagnetic adsorption device 3 is installed on the outside of the tractor 1 and is connected to the structural strengthening part of the tractor body 1; the control system inside the tractor body 1 is respectively electrically connected to the sway measurement device and the electromagnetic adsorption device with electrical signals and control signals transmitted.

[0021] A spring 302 is arranged on the outer surface of the part of the movable column 303 located inside the mounting frame 301. The spring 302 can reset the movable column 303 when the electromagnet does not work. A limit column is arranged on the part of the locking pin 304 located inside the support frame, and the locking spring 305 is arranged between the support frame and the limit column. Under the action of the locking spring 305, the locking pin 304 can pass through the pin hole at the end of the movable column 303 to lock the movable column 303.

[0022] The electromagnetic adsorption devices 3 are symmetrically arranged around the tractor body 1, and four groups of electromagnetic adsorption devices 3 are arranged.

[0023] A control system is arranged inside the tractor body 1. The control system, the sway measurement device 2 and the electromagnet are electrically connected. The sway measurement device 2 measures the sway state of the tractor body 1 in real time and feeds back the sway state of the tractor body 1 to the control system of the tractor body 1. After calculation by the control system of the tractor body 1, a control signal is sent to the electromagnetic adsorption device 3. After receiving the signal, the electromagnet inside the movable column 303 works to generate an adsorption magnetic field, thereby generating an adsorption force on the deck to achieve the purpose of increasing the grip of the tractor; if the control system inside the tractor body 1 does not have the functions of sending signals and calculation, the functions of sending control signals and calculation can be integrated in the sway measurement device 2, and the tractor body 1 only needs to supply power to the electromagnetic adsorption device 3.

[0024] The working process of the present invention is as follows: The working principle of the sway-preventing aircraft tractor:

[0025] When a large ship is swaying, the sway measuring device 2 measures the swaying state of the tractor body 1 in real time, and feeds back the swaying state of the tractor body 1 to the control system of the tractor body 1. After calculation, the control system of the tractor body 1 sends a control signal to the electromagnetic adsorption device 3. After the electromagnetic adsorption device 3 receives the signal, the electromagnet inside the active column 303 works to generate an adsorption magnetic field, thereby generating an adsorption force on the deck, thereby achieving the purpose of increasing the grip of the tractor. If the control system inside the tractor body 1 does not have the signal sending function and the calculation function, the control signal sending and the calculation function can be integrated in the sway measuring device 2, and the tractor body 1 only needs to supply power to the electromagnetic adsorption device 3.

[0026] Working principle of electromagnetic adsorption device:

[0027] When the electromagnetic adsorption device 3 is not working, the movable column 303 is at the highest position under the action of the spring 302, and is at a certain distance from the deck surface. When the tractor 1 is slightly swung, the electromagnet inside the movable column 303 is energized to generate a small deck adsorption force. Under the adsorption force, a force other than gravity is added between the tractor body 1 and the deck, thereby increasing the grip. When the swaying of the ship is large enough to even cause the aircraft and the tractor to roll over or slip, the electromagnetic adsorption force is increased, causing the end of the movable column to contact the deck. At this time, the locking pin 304 of the electromagnetic adsorption device 3 passes through the pin hole at the end of the movable column 303 under the action of the locking spring 305, and locks the movable column 303. At this time, the tractor 1 does not travel, and the electromagnetic adsorption device 3 is firmly adsorbed on the deck surface. The tractor body 1, the electromagnetic adsorption device 3, and the deck surface are a rigid whole. When the ship is swaying, it will not roll over or slip due to shaking. When the swaying condition is reduced, the locking pin 304 in the pin hole at the end of the movable column 303 is manually pulled out to unlock the movable column 303, and the movable column 303 leaves the deck surface under the action of the spring 302, and the tractor can travel normally.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the scope of protection of the present invention.

Claims

1. An anti-sway aircraft tractor for large ships, comprising a tractor body (1), characterized in that, A swing measurement device (2) is provided on the tractor body (1), and an electromagnetic adsorption device (3) is provided on the side of the tractor body (1). The electromagnetic adsorption device (3) includes a mounting frame (301), a spring (302), a movable column (303), a locking pin (304) and a locking spring (305). The mounting frame (301) is provided on the side of the tractor body (1). The movable column (303) is penetrated through the mounting frame (301). The spring (302) is arranged on the outer surface of the movable column (303). A support frame is provided on one side of the top of the mounting frame (301). The locking pin (304) is penetrated through the support frame. The locking spring (305) is arranged on the outer surface of the locking pin (304). An electromagnet is arranged inside the movable column (303).

2. The anti-sway aircraft tractor for large ships according to claim 1, characterized in that, The spring (302) is arranged on the outer surface of the part of the movable column (303) located inside the mounting frame (301). A limit column is arranged on the part of the locking pin (304) located inside the support frame. The locking spring (305) is arranged between the support frame and the limit column.

3. The anti-sway aircraft tractor for large ships according to claim 1, characterized in that, The electromagnetic adsorption devices (3) are symmetrically arranged around the tractor body (1), and four groups of electromagnetic adsorption devices (3) are provided.

4. The anti-sway aircraft tractor for large ships according to claim 1, characterized in that, A control system is arranged inside the tractor body (1), and the control system, the swing measurement device (2) and the electromagnet are electrically connected.

Images