Airborne super-long metal cable take-up and pay-off guide system

Abstract

The invention provides an airborne super-long metal cable take-up and pay-off guide system. The invention belongs to the technical field of aviation, and relates to design and installation of an airborne ultra-long metal cable retracting and releasing guide system, which can effectively solve the problem of retracting and releasing movement of an ultra-long metal cable in a closed metal guide pipe in a fuselage, ensure that the metal cable is not blocked in the retracting and releasing process, and ensure the operation safety of the metal cable.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation technical structure design, and relates to an airborne super-long metal cable retracting and releasing guiding system. Background Art

[0002] The retraction and deployment of extra-long metal cables is common in the civilian field, such as the cables used for elevators, and the extra-long cables used for oil production by winches. However, these cables do not require a guide device to limit their travel during the retraction and deployment process. They are only controlled by the retraction and deployment device in a specific space and move up and down along the direction of gravity. Of course, the civilian field also has the guidance and movement of mountaineering ropeway cables. Under the action of the powerful motor, the winch drives the extra-long cable to move along a fixed track.

[0003] Metal cables (steel cables) are also commonly used on airplanes, mainly aircraft control system cables and parachuting cables. Aircraft control system cables need to be connected to the control levers and active parts such as the aircraft flaps, vertical tail rudder, and the control levers. Several fixed pulleys are set on the path through which the control system cables pass, so that the control system cables reciprocate along the spatial travel determined by the fixed pulleys, so that the rudders can deflect left and right or the aircraft flaps can be folded and lowered. The control system cables have a short travel, slow speed, and small force. Parachuting cables are fixed above the rear doors of medium-sized military transports to hang parachute bags and allow parachutists to ski jump. The cables are short, do not move, and are fixed in position.

[0004] However, how to design a long-stroke (not less than 15m) metal cable guide device in the aircraft cabin to release the extra-long metal cable (including the stabilizing cone) from the aircraft cabin to the outside of the cabin for a special purpose (effective release length of not less than 200m) has become a technical problem. This is because the extra-long metal cable has a large load, a fast retraction speed, and a long retraction time. If it is guided by an ordinary pulley, it is easy to cause the ordinary pulley to have poor stability and the metal cable to easily fall off the ordinary pulley; if the metal cable breaks accidentally in the cabin, the whipping effect of the cable may damage the equipment in the cabin, posing a safety hazard. Summary of the invention

[0005] The present invention provides an airborne extra-long metal cable retraction and release guiding system, which can release the extra-long metal cable that needs to be released outside the aircraft cabin outside the fuselage without obstacles, and at the same time, under the action of the retraction and release device in the aircraft cabin, the extra-long metal cable released outside the aircraft cabin can be recovered into the cabin without obstacles.

[0006] The present invention provides an airborne super-long metal cable retracting and guiding system, comprising: a retracting and releasing device, a guiding device, and a positioning device;

[0007] The retractable device comprises a housing and a winch arranged in the housing, and the retractable device is arranged in the airtight cabin; the first end of the landing device is cylindrical, and the second end is trumpet-shaped, and the landing device is arranged at the lower wall plate of the tail section of the aircraft in the non-airtight cabin;

[0008] The guide device comprises: a plurality of round tubes, a pulley load-bearing member, and a metal clamp fastener; the plurality of round tubes are arranged in sequence, the first end of which is connected to the outlet of the shell, the middle part passes through the airtight compartment and the non-airtight compartment of the fuselage, and the end is connected to the first end of the landing device;

[0009] The pulley load-bearing member is arranged in the round tube, and the pulley load-bearing member is in a well shape; the metal clamp fastener is used to connect the segmented round tube;

[0010] The first end of the metal cable is connected to the winch, and the second end passes through the well-shaped central through hole of each pulley load-bearing member, is led out of the machine body, and is connected to the stabilizing cone;

[0011] The shape of the stabilizing cone matches the shape of the bell mouth of the landing device.

[0012] Optionally, the guiding device further comprises: a fixed pulley;

[0013] The fixed pulley is arranged at the turning point of the guide device and is respectively connected with the two sections of the round pipe;

[0014] The metal cable passes through the outer peripheral groove of the fixed pulley.

[0015] Optionally, the pulley load-bearing member includes two first bearings and two second bearings;

[0016] The two first bearings are arranged in parallel, and the two second bearings are arranged in parallel;

[0017] The first bearing and the second bearing are perpendicular to each other.

[0018] Optionally, the inner diameter of the cylinder at the first end of the landing device is larger than the inner diameter of the circular tube.

[0019] Optionally, a landing sensor is provided in the landing device;

[0020] The position sensor is used to detect whether the stabilizing cone is in place.

[0021] Optionally, the inner surface of the bell mouth of the landing device adopts a smooth transition.

[0022] Optionally, the circular tube passing through the cabin is an integrated circular tube, and a cover plate with a center hole is provided at the end of the circular tube located in the non-airtight cabin.

[0023] Optionally, a reinforcing connecting ring is provided on the outer wall of the circular tube for connecting to the fuselage via a clamping ring.

[0024] The present invention provides an airborne super-long metal cable retraction and extension guiding system. The guiding device effectively solves the problem of the super-long metal cable performing retraction and extension movements in a closed metal conduit in a fuselage, ensures that the metal cable is not stuck during the retraction and extension process, and ensures the safe operation of the metal cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a diagram of the metal cable retracting and releasing guide system;

[0026] Figure 2 It is a pulley load-bearing member;

[0027] Figure 3 It is the pulley bearing;

[0028] Figure 4 It is a metal round tube (semi-circular part);

[0029] Figure 5 It is a metal clamp;

[0030] Figure 6 It is a positioning device;

[0031] Figure 7 It is a schematic diagram of the installation of the pulley load-bearing component in the metal cabin-penetrating circular pipe. DETAILED DESCRIPTION

[0032] The airborne super-long metal cable retracting and releasing guiding system provided by the present invention is explained below with reference to the accompanying drawings.

[0033] like Figure 1-7 As shown, the present invention provides an airborne super-long metal cable retracting and releasing guiding system, such as Figure 1 As shown, it includes: a retracting device, a guiding device, and a positioning device.

[0034] The retracting and releasing device is arranged in the airtight cabin, and the landing device is arranged at the lower wall panel of the tail section of the aircraft in the non-airtight cabin.

[0035] The guiding device is mainly a metal round tube (semicircle), one end of which is connected to the retracting device and passes through the interior of the fuselage, and the other end is connected to the landing device.

[0036] The retracting and releasing device comprises: a metal box, a winch, a controller, and a cable retracting drum device.

[0037] Objects to be retracted and released: antenna cables and stabilizing cones.

[0038] Among them, the guide device is an important component of the metal cable retraction and release system, which is composed of a number of metal circular tubes (semi-circular), metal cabin-penetrating circular tubes, pulley load-bearing components, and fixed pulleys. Its main function is to place a set of extra-long metal cables in the retraction and release device in the aircraft's airtight cabin along the long-stroke two-way guide device to the rear of the aircraft through the aircraft's airtight frame, and guide the metal cables to the aircraft's outlet to lead out the metal cables, and the metal cables are connected to the stabilizing cone.

[0039] After the aircraft rises to the cruising altitude, the retracting and releasing device in the cabin is powered on, and the "release" and "speed selection" operations are performed through the controller to start the motor of the retracting and releasing device. The metal cable is released at the set speed under the tow of the stabilizing cone (relying on the aerodynamic load of the windward surface of the stabilizing cone). After being released to the required length, the "stop release" button of the controller is turned on to make the aircraft fly in a straight line or in a hovering manner with the metal cable. When the mission is completed, the "recovery" button and "speed selection" of the controller are pressed to make the metal cable be recovered into the retracting and releasing device in the cabin through the guide device at the set speed.

[0040] In order to solve the technical problem of guiding the retraction and extension of the metal cable cabin, the present invention is implemented through the following technical solutions:

[0041] a) The guide device can be simplified into a pipeline, the starting end of which is at the outlet of the retractable device and the end is at the lower wall plate of the tail section of the aircraft; the center line of the pipeline is the theoretical position of the metal cable retractable;

[0042] b) Considering the balance of the aircraft aerodynamic load when the metal cable is retracted and released, the center axis of the cable outlet of the retracting and releasing device, the center axis of the cable outlet at the lower wall panel of the aircraft tail section or the aircraft tail cone should be within the symmetry plane of the aircraft;

[0043] c) The center line of the pipeline is composed of multiple broken lines, all of which are within the symmetry plane of the aircraft; the angle between adjacent broken lines is obtuse and as large as possible to reduce the load at each stress point and ensure smooth retraction and release of the metal cable;

[0044] d) The guide device is composed of several pulley load-bearing components, fixed pulleys, metal round pipes, drop pipes, and metal clamp fasteners. Figure 2 , pulley bearing see Figure 3 , metal round tube (semicircle) see Figure 4 , metal clamp see Figure 5 , see the positioning device Figure 6 , installation of pulley bearing components see Figure 7 ;

[0045] e) A fixed limit pulley block is installed inside the pulley load-bearing component, which is formed into a "well" shape by four pulleys. The metal cable passes through the middle of the "well" shape, and the load force of the cable can be transmitted to the metal structure of the pulley load-bearing component through any pulley;

[0046] f) The landing tube also serves as a guiding device, and is composed of a metal tube and a pulley with a guiding metal cable arranged inside. The terminal of the metal tube is designed with a landing port to ensure that the stabilizing cone is fastened in the bell mouth of the guiding landing tube under the traction of the metal cable. At the same time, a landing detection circuit is arranged in the landing tube to transmit the detected landing signal to the controller.

[0047] Combination Figure 1 A detailed description of this guidance system:

[0048] Figure 1 It is a metal cable retracting and releasing guiding system, which consists of a retracting and releasing device, a guiding device (including a fixed pulley), and a positioning device. The retracting and releasing device consists of a metal box and a box body, a winch, a controller, a cable retracting roller device, etc.; the guiding device consists of a number of metal round tubes (semi-circular), metal cabin-penetrating round tubes, pulley load-bearing components, and fixed pulleys, which are fixed and combined by metal clamps to form a metal cable cabin retracting and releasing guiding path. The path can be bent according to the space in the cabin. The metal cable passes through the middle of the pulley load-bearing component, which can guide the metal cable to pass through the metal tube; a positioning device is installed at the end of the path to guide the released and recovered metal cable. A stabilizing cone is connected to the end of the metal cable to ensure that the cable can be released and recovered freely.

[0049] A set of airborne super-long metal cable retracting and releasing guide device includes several metal round tubes (semi-circular), metal cabin-penetrating round tubes, pulley load-bearing components, fixed pulleys and metal clamps, and a guide landing device is installed at the end of the guide device.

[0050] A fixed pulley is arranged at the bending part of the guide device to reduce the resistance of the cable movement.

[0051] Each section of metal round tube (semicircle) is composed of two symmetrical semicircular tubes, which are connected and clamped by metal clamps to form a complete metal round tube. This design is easy to disassemble and maintain.

[0052] The metal through-cabin round tube is an integral round tube with a guide hole on the end face, which can control the air flow within a customized range.

[0053] The pulley load-bearing component is composed of four pulleys in a "well" shape and a metal component, and both ends of the metal component are used for connection with a metal round tube (semicircle).

[0054] At the same time, the metal component has a reserved transition zone for connecting to the metal clamp (hanging point) of the carrier aircraft, which makes it easy to fasten the metal guide device to the aircraft body through the hanging point.

[0055] Metal clamps are used to connect metal round tubes (semi-circular) to pulley load-bearing components.

Claims

1. An airborne super-long metal cable retracting and releasing guiding system, characterized in that: include: Retracting and releasing device, guiding device, and positioning device; The retracting and releasing device comprises a shell and a winch arranged in the shell, and the retracting and releasing device is arranged in the airtight cabin; The first end of the landing device is cylindrical, and the second end is trumpet-shaped. The landing device is arranged at the lower wall panel of the tail section of the aircraft in the non-airtight cabin; The guiding device includes: multiple sections of round tubes, pulley load-bearing components, and metal clamp fasteners; Multiple sections of circular tubes are arranged in sequence, with the first end connected to the outlet of the shell, the middle passing through the airtight compartment and the non-airtight compartment of the fuselage, and the end connected to the first end of the landing device; The pulley load-bearing member is arranged in the round tube, and the pulley load-bearing member is in a well shape; the metal clamp fastener is used to connect the segmented round tube; The first end of the metal cable is connected to the winch, and the second end passes through the well-shaped central through hole of each pulley load-bearing member, is led out of the machine body, and is connected to the stabilizing cone; The shape of the stabilizing cone matches the shape of the bell mouth of the landing device.

2. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: The guiding device also includes: a fixed pulley; The fixed pulley is arranged at the turning point of the guide device and is respectively connected with the two sections of the round pipe; The metal cable passes through the outer peripheral groove of the fixed pulley.

3. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: The pulley load-bearing member includes two first bearings and two second bearings; The two first bearings are arranged in parallel, and the two second bearings are arranged in parallel; The first bearing and the second bearing are perpendicular to each other.

4. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: The inner diameter of the cylinder at the first end of the landing device is larger than the inner diameter of the circular tube.

5. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: A landing sensor is arranged in the landing device; The position sensor is used to detect whether the stabilizing cone is in place.

6. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: The inner surface of the bell mouth of the landing device adopts a smooth transition.

7. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: The circular tube passing through the cabin is an integrated circular tube, and a cover plate with a center hole is arranged at the end of the circular tube located in the non-airtight cabin.

8. The airborne super-long metal cable retracting and releasing guiding system according to claim 1, characterized in that: A reinforcing connecting ring is arranged on the outer wall of the circular tube, which is used to connect with the fuselage through a clamping ring.

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