阅读说明：本技术 一种直升机桨叶系留装置 (Helicopter blade mooring device ) 是由 曾俊华 胡磊 沈亚斌 李艳艳 刘照兴 刘权利 于 2019-12-04 设计创作，主要内容包括：本发明提供一种直升机桨叶系留装置,所述系留装置包括桨叶固定框1、伸缩撑杆2和系留绳3；直升机桨叶穿过所述桨叶固定框1,所述桨叶固定框为框架结构,用于固定所述直升机桨叶；所述桨叶固定框的框体上套设有弹性滑动件10,所述弹性滑动件便于直升机桨叶穿过桨叶固定框；所述伸缩撑杆2的一端与所述桨叶固定框连接,另一端与地面接触或与限位件连接；所述系留绳3的一端与所述桨叶固定框连接,另一端与固定件连接。(The invention provides a helicopter blade mooring device, which comprises a blade fixing frame 1, a telescopic stay bar 2 and a mooring rope 3; the helicopter blades penetrate through the blade fixing frame 1, and the blade fixing frame is of a frame structure and is used for fixing the helicopter blades; an elastic sliding piece 10 is sleeved on a frame body of the blade fixing frame, and the elastic sliding piece is convenient for a helicopter blade to penetrate through the blade fixing frame; one end of the telescopic stay bar 2 is connected with the blade fixing frame, and the other end of the telescopic stay bar is in contact with the ground or is connected with the limiting piece; one end of the mooring rope 3 is connected with the blade fixing frame, and the other end of the mooring rope is connected with the fixing piece.)

1. A helicopter blade mooring device is characterized by comprising a blade fixing frame (1), a telescopic stay bar (2) and a mooring rope (3);

the helicopter blade penetrates through the blade fixing frame (1), and the blade fixing frame is of a frame structure and is used for fixing the helicopter blade; an elastic sliding piece (10) is sleeved on a frame body of the blade fixing frame, and the elastic sliding piece is convenient for a helicopter blade to penetrate through the blade fixing frame;

one end of the telescopic stay bar (2) is connected with the blade fixing frame, and the other end of the telescopic stay bar is in contact with the ground or is connected with the limiting piece;

one end of the mooring rope (3) is connected with the blade fixing frame, and the other end of the mooring rope is connected with the fixing piece.

2. Mooring device according to claim 1, characterized in that the blade holder (1) is provided with a connecting shaft (11), one end of the connecting shaft (11) being rotatably connected to the blade holder (1) and the other end being connected to the telescopic stay (2).

3. Mooring device according to claim 2, characterized in that the connecting shaft (11) and the blade holding frame (1) have a swinging angle of 0-10 ° to adapt to different angles of inclination of the helicopter blades.

4. Mooring device according to claim 2, characterized in that the telescopic stay (2) comprises: an upper section support rod (20) and a lower section support rod (21),

one end of the upper section support rod (20) is connected with the connecting shaft (11) through a bolt; the other end of the upper section support rod (20) is slidably arranged through the lower section support rod (21); the upper section support rod (20) and the lower section support rod (21) are fixed through bolt matching.

5. Mooring device according to claim 1, characterized in that the blade holding frame (1) is provided with elastic means inside the frame for avoiding damage to the helicopter blades during their oscillation.

6. Mooring device according to claim 5, characterized in that the blade holder (1) is externally sheathed with a flexible bag; after the helicopter blades penetrate through the blade fixing frame (1), the flexible bag wraps the helicopter blades, and the helicopter blades are prevented from contacting with hard objects and damaging the blades.

7. Mooring device according to claim 1, characterized in that the elastic slider (10) is two rubber rollers having the same conicity as the helicopter blade.

8. Mooring device according to claim 6, characterized in that the mooring line (3) is a nylon lace; the elastic piece is a rubber pad.

Technical Field

The invention belongs to the field of helicopter maintenance and guarantee, and particularly relates to a strong wind mooring device for a helicopter blade.

Background

At present, when a helicopter is in a test flight process and is parked in the open in severe weather, the paddle violently swings up and down under the action of strong wind, so that the paddle is easy to be damaged, and a main paddle needs to be protected by a paddle mooring device so as to avoid the damage of the main paddle under the action of the strong wind.

Disclosure of Invention

The purpose of the invention is as follows: based on the characteristics of helicopter blades, the blade mooring device is provided, and the blade strong wind mooring device consists of a blade fixing frame, a telescopic stay bar and a mooring rope, wherein three parts are combined into a whole during use, and can be detached during storage, so that the blade mooring device is convenient to store and transport.

The technical scheme of the invention is as follows: the mooring device comprises a blade fixing frame 1, a telescopic stay bar 2 and a mooring rope 3;

the helicopter blades penetrate through the blade fixing frame 1, and the blade fixing frame is of a frame structure and is used for fixing the helicopter blades; an elastic sliding piece 10 is sleeved on a frame body of the blade fixing frame, and the elastic sliding piece is convenient for a helicopter blade to penetrate through the blade fixing frame;

one end of the telescopic stay bar 2 is connected with the blade fixing frame, and the other end of the telescopic stay bar is in contact with the ground or is connected with the limiting piece;

one end of the mooring rope 3 is connected with the blade fixing frame, and the other end of the mooring rope is connected with the fixing piece.

Further, be provided with connecting axle 11 on the fixed frame 1 of paddle, the one end rotatable coupling of connecting axle 11 in the fixed frame 1 of paddle, the other end with telescopic stay 2 connects.

Further, the swing angle of the connecting shaft 11 and the blade fixing frame 1 is 0-10 degrees so as to adapt to different inclination angles of the helicopter blades.

Further, the telescopic stay 2 includes: an upper section stay 20 and a lower section stay 21,

one end of the upper section support rod 20 is connected with the connecting shaft 11 through a bolt; the other end of the upper section stay bar 20 is slidably inserted into the lower section stay bar 21, and is matched with the lower section stay bar 21 through a bolt to fix the upper section stay bar 20 and the lower section stay bar 21.

Furthermore, an elastic part is laid on the inner side of the frame body of the blade fixing frame 1 and used for preventing the blade fixing frame from damaging the helicopter blades in the swinging process of the helicopter blades.

Further, a flexible bag is sleeved on the outer side of the frame body of the blade fixing frame 1; after the helicopter blade passes the fixed frame 1 of paddle, the flexible bag wraps the helicopter blade, avoids helicopter blade and hard thing contact, damages the paddle.

Further, the elastic sliding member 10 is two rubber rollers, and the taper of the rubber rollers is the same as that of the helicopter blade.

Further, the mooring rope 3 is a nylon wire sleeve belt; the elastic piece is a rubber pad; the flexible bag is sewn by waterproof polyester fabric and a silk ribbon.

The invention has the beneficial effects that: the problem of when the helicopter is tried to fly and tried by troops, and is parked in the open in severe weather is solved, the blades are damaged easily because the blades violently swing up and down under the action of strong wind, and the main blades are protected

Drawings

FIG. 1 is a schematic view of a helicopter blade mooring arrangement.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

This patent is according to helicopter development characteristics, and the permanent deformation that intensity rigidity, should not produce under ultimate load and use the helicopter and the complete adverse effect that forms of paddle structure etc. factor is synthesized to consider, designs a paddle high wind mooring device, and its structural style as follows, see figure 1, and figure 1 is helicopter paddle mooring device schematic diagram:

the strong wind mooring device for the paddle consists of a paddle fixing frame, a telescopic stay bar and a mooring rope, three parts are combined into a whole during use, and the strong wind mooring device can be detached during storage and is convenient to store and transport.

a) Blade fixing frame

The blade fixing frame 1 is used for fixing the blade tip and protecting the blade tip. The strong wind mooring device of the blade is mainly equipment used under the condition of strong wind, so that whether the blade can be fixed and the blade tip is prevented from being damaged is very important. In the embodiment, the blade fixing frame 1 is designed into a double-layer parallel metal frame structure so as to ensure that the blade tip can be fixed by the blade high-wind mooring device in a high-wind state and the blade fixing frame has enough rigidity to ensure that the blade fixing frame cannot deform. A rubber pad is laid in the metal frame; and a 362 waterproof polyester fabric and a polyamide band are sewn into a flexible bag, so that the contact part of the blade fixing frame and the blade tip is not in hard contact, and the blade is prevented from being damaged. Elastic sliding part 10 is installed on the fixed frame upper portion of paddle, and elastic sliding part 10 of this embodiment is two rubber gyro wheels, and the tapering of rubber gyro wheel is the same with the tapering of paddle for fixed frame can easily embolia.

The rubber roller ensures that the blade tip can not be damaged in the process that the fixing frame is sleeved into the blade tip, and the blade tip can be better attached to the surface of the blade by making a cone. The inner side of the fixing frame is paved with soft rubber, so that the paddle can not be hard to collide with the frame body in the swinging process.

In the embodiment, the blade fixing frame is a stainless steel frame which is formed by welding stainless steel pipes with phi 8 wall thickness of 1.5, so that enough rigidity is ensured. The lower end of the frame is welded with a mooring rope mooring point, and the whole strong wind mooring device is pulled by the mooring rope through the point.

In the embodiment, be provided with connecting axle 11 on the fixed frame 1 of paddle, the one end rotatable coupling of connecting axle 11 in the fixed frame 1 of paddle, the other end with telescopic stay bar 2 connects. Further, the swing angle of the connecting shaft 11 and the blade fixing frame 1 is 0-10 degrees so as to adapt to different inclination angles of the helicopter blades. Specifically, the connecting shaft 11 is connected to the stainless steel frame by a shaft bolt.

Telescopic stay bar

b) Telescopic stay bar

For the convenience of transportation and use, the telescopic stay 2 is divided into two sections, including an upper section stay 20 and a lower section stay 21. When in use, the upper section support rod 20 is connected with the connecting shaft 11 through a quick-release bolt into a whole, and the blade tip fixing frame 1 can freely adjust the angle according to the inclination of the helicopter blade, so that the helicopter blade is stable and reliable in use; the upper section stay bar 20 is sleeved in the lower end stay bar 21 and screwed and pressed tightly by two bolts. The combined stay bar has the function that when the mooring rope 3 is pulled downwards by hand to the maximum acting force, the paddle is fixed at a certain height, so that the paddle cannot swing downwards along with the acting force of strong wind. The telescopic stay bar adopts the design that the inner tube is inserted into the outer tube, can be adjusted according to the height of the paddle, adopts clamping bolts, nuts and the like at the connecting position of the telescopic stay bar, is convenient, flexible and reliable during use, and is simple to operate. The bottom of the lower section support rod 21 is blocked by rubber, so that the pipe end of the lower section support rod 21 is firmly contacted with the ground and is not easy to slide, the vertical rigidity is enough to bear axial load, the wind pressure on the upper blade can be reliably transmitted to the ground, and the elasticity is good so as to adapt to the rotation of the pipe end.

c) Mooring rope

In the embodiment, the mooring rope 3 adopts a 22-770 nylon wire sleeve belt, and can bear 7700N of tensile force. The function of the mooring sleeve belt is to prevent the blades from upwards moving under the action of wind, one end of the mooring sleeve belt is used for mooring the blade tip fixing frame, and the other end of the mooring sleeve belt is moored on the airplane.

The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.