Steel cable guiding and supporting device for airplane

Abstract

The utility model provides a steel cable guiding and supporting device for an airplane, which belongs to the technical field of airplane control system design and is characterized in that a guide plate is mounted on an airplane body and is provided with guide holes for mounting a guide part A and a guide part B; a groove through which the steel cable can be mounted into or taken out of the guide hole from the outside of the guide plate is formed in the guide hole in the guide plate; the guide piece B and the guide piece A are both of a half revolution body structure, and the guide piece A and the guide piece B can be combined into a complete revolution body structure; a through hole with the diameter matched with the diameter of the outer circle of the guiding piece A is formed in the clamping sleeve. A groove with the preset width is formed from the through hole to the outer circle of the clamping sleeve. When the steel cable is disassembled or assembled, the steel cable can be directly taken out of the guide hole or can be directly assembled into the guide hole, the steel cable does not need to be completely pulled out of or penetrate into the guide hole, the structure is simple, operation is convenient, the workload of ground crew is effectively reduced, the maintenance time of an airplane is shortened, and the operation rate of the airplane is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft control system design, and particularly relates to a steel cable guide support device for an aircraft. Background Art

[0002] Steel cables, with their high tensile strength, fatigue strength and impact toughness, can transmit motion and loads over longer distances. They are widely used in aircraft control systems to transmit the pilot's mechanical input commands to the control surface movement mechanism or hydraulic servo valve to drive the control surface deflection to control the aircraft's movement attitude.

[0003] Since the steel cable is a flexible body, pulleys are usually used on the aircraft to change the direction of the steel cable. A guide plate assembly is usually provided between two adjacent groups of pulleys with larger spans to support the steel cable and limit the radial movement of the steel cable under vibration and other environments. The guide plate assembly has guide holes for installing guide parts at the place where the steel cable passes through the guide plate. Since the steel cable needs to be removed and installed from the aircraft regularly for maintenance or replacement, the steel cable needs to be completely pulled out of the guide hole before being removed when disassembling it. When installing it, one end of the steel cable needs to be completely passed through the guide hole before installation. For longer steel cables, it is easy to get stuck or hang on other structures when passing through the guide holes of multiple guide plate assemblies in sequence or when being pulled out from the guide holes, and multiple people need to work together. All of these will increase the workload of ground staff and reduce the maintenance efficiency of the aircraft.

[0004] Therefore, a new steel cable guide and support device for aircraft that can realize rapid disassembly of the steel cable is needed. Utility Model Content

[0005] In order to solve the technical problem in related technologies that the removal and installation of steel cables requires the coordinated work of multiple people, which increases the workload of ground crew members and reduces aircraft maintenance efficiency, the present invention provides an aircraft steel cable guide and support device. When removing or installing the steel cable, the steel cable can be directly removed from the guide hole or directly inserted into the guide hole, without having to completely pull the steel cable out of or insert it into the guide hole. The technical solution is as follows:

[0006] A steel cable guide and support device for an aircraft, comprising: a guide plate, a guide member A, a guide member B, a ferrule and a steel cable.

[0007] The guide plate is installed on the aircraft body and is provided with guide holes for installing guide parts A and guide parts B. The guide holes on the guide plate are provided with grooves that allow the steel cable to be installed into or removed from the guide holes from the outside of the guide plate; the structures of guide parts B and guide parts A are the same, both are half-gyroscopic structures, and guide parts A and guide parts B can be combined into a complete gyroscopic structure; the inside of the ferrule is a through hole with a diameter matching the outer diameter of the guide part A, and a groove of a preset width is provided from the ferrule through hole to the outer circle.

[0008] Optionally, a groove with a width of 1.1 to 1.2 times the diameter of the steel cable is provided from the guide hole of the guide plate to the edge of the guide plate.

[0009] Optionally, the outer diameter of the guide member A is the same as the diameter of the guide hole on the guide plate.

[0010] Optionally, the guide member A has two ends along its axial direction, one end is provided with a protruding structure, the outer circle of the guide member A is provided with multi-layer grooves distributed along the axial direction, and the center of the guide member A is a through hole with a diameter of 1.1 to 1.2 times the diameter of the steel cable.

[0011] Among them, the ferrule is an elastic part, and the diameter of the internal through hole of the ferrule is 1.2 to 1.4 times the outer diameter of the guide part A. The inside of the through hole is provided with multi-layer grooves with the same tooth shape distributed along the axial direction as the multi-layer grooves on the outer circle of the guide part A; the internal through hole of the ferrule to the outer circle is provided with a groove with a width of 1.1 to 1.2 times the diameter of the steel cable.

[0012] Furthermore, the device also includes a cable tie, and a convoluted groove for arranging the cable tie is provided in the middle portion of the outer circle of the ferrule.

[0013] This utility model provides a guide and support device for aircraft cable. Two guide members are combined to form a complete axial hole structure within the cable. This hole structure allows the cable to pass through and constrains its radial movement, providing a guiding and supporting function for the cable. To disassemble the cable, simply remove the cable tie, followed by the ferrule and guide member. Installation of the cable is the reverse process.

[0014] Compared with the prior art, when disassembling or installing the steel cable, the steel cable can be directly taken out of the guide hole or directly installed into the guide hole, without having to completely pull the steel cable out of or insert the steel cable into the guide hole.

[0015] The utility model has a simple structure and is easy to operate, effectively reduces the workload of ground crew members, shortens the maintenance time of aircraft, and improves the dispatch rate of aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional appearance diagram of a steel cable guide support device for an aircraft according to the utility model;

[0017] Figure 2 This is an exploded view of a steel cable guide support device for an aircraft;

[0018] Figure 3 It is the front view of the guide plate;

[0019] Figure 4 Schematic diagram of guide member A (guide member B has the same structure as guide member A);

[0020] Figure 5Schematic diagram of the card sleeve.

[0021] Among them, 1 is steel cable, 2 is guide part A, 3 is guide part B, 4 is guide plate, 5 is ferrule, and 6 is cable tie. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, combined with the flowchart of the method of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 and Figure 2 The present invention provides a steel cable guide and support device for an aircraft, comprising: a guide plate 4, a guide member A 2, a guide member B 3, a sleeve 5, a cable tie 6 and a steel cable 1.

[0024] The guide plate 4 is mounted on the aircraft body and is provided with guide holes for mounting the guide members A2 and B3. The guide holes on the guide plate 4 are provided with grooves having a width 1.1 to 1.2 times the diameter of the steel cable 1, so that the steel cable 1 can be inserted into or removed from the guide holes from the outside of the guide plate 4. The interior of the guide member A2 is a through-hole structure having a size 1.1 to 1.2 times the diameter of the steel cable. The structures of the guide members B3 and A2 are identical.

[0025] When installing the steel cable 1, insert the steel cable 1 into the guide hole on the guide plate 4 through the groove at the guide hole. Slide the guide piece A2 and the guide piece B3 onto the outside of the steel cable 1 and then pass them through the guide hole on the guide plate 4. Then, insert the ferrule 5 through the groove on it, pass it through the steel cable 1, and then slide it onto the outer circle of the guide piece A2 and the guide piece B3. Finally, tighten the ferrule 5 with the cable tie 6. The process of disassembling the steel cable is the opposite.

[0026] Specifically, the guide plate structure is as follows Figure 3 As shown, a guide hole with a diameter of D is provided on the guide plate 4, and a groove with a width of 1.1 to 1.2 times the diameter of the steel cable 1 is provided from the guide hole to the edge of the guide plate 4;

[0027] The structure of guide A2 is as follows Figure 4 As shown (guide member B3 and guide member A2 have the same structure), guide member A2 is a half gyroscopic structure (guide member A2 and guide member B3 can be combined into a complete gyroscopic structure), and the outer diameter of guide member A2 is the same as the diameter of the guide hole on the guide plate 4.

[0028] The guide member A2 has two ends along its axial direction: end A and end B. End B has a protruding structure. The outer circle of the guide member A2 has multiple layers of grooves distributed along the axial direction. The center of the guide member A2 is a through hole with a size of 1.1 to 1.2 times the diameter of the steel cable.

[0029] The ferrule 5 is an elastic member made of elastic material. The structure of the ferrule 5 is as follows: Figure 5 As shown, the interior of the ferrule 5 is a through hole with a diameter 1.2 to 1.4 times the outer diameter D of the guide A2. The through hole is provided with multiple axially distributed grooves with the same thread profile as the multi-layer grooves on the outer circumference of the guide A2. A groove with a width of 1.1 to 1.2 times the diameter of the steel cable is provided from the internal through hole to the outer circumference of the ferrule 5. Therefore, the ferrule 5 has a C-shaped structure when viewed from the axial direction. Because the ferrule 5 is an elastic member, its outer circumference can be reduced under the action of external force.

[0030] In one embodiment, a convoluted groove is provided in the middle of the outer circle of the ferrule 5 for arranging the cable tie 6 .

[0031] like Figure 2 As shown, during installation, first insert the steel cable 1 through the slot in the guide hole on the guide plate 4. Then, slide the guide pieces A2 and B3 over the steel cable 1, assemble them, and pass them through the guide hole on the guide plate 4 until the raised structures on the guide pieces A2 and B3 touch the guide plate 4. Then, slide the ferrule 5 through its slot on the steel cable 1 and then over the outer circumference of the guide pieces A2 and B3. Finally, wrap the cable tie 6 around the convoluted groove in the middle of the outer circumference of the ferrule 5 and tighten it. (The cable tie is an industrial standard.)

[0032] The process of removing the cable is the reverse of the above process.

[0033] The utility model provides a slot at the guide hole on the guide plate, allowing the steel cable to be inserted into and removed from the guide plate through the slot. Two guide members A and B of identical structure are then sleeved over the exterior of the steel cable. After passing through the guide hole on the guide plate, a slotted ferrule is sleeved over the guide members A and B. The ferrule is then tightened with a cable tie to secure the guide members A and B, thereby restricting radial movement of the steel cable and providing a guiding support for the steel cable. When removing or installing the steel cable, the steel cable can be removed from the guide hole on the guide plate or inserted into the guide hole through the slot, eliminating the need to fully withdraw or insert the steel cable from the guide hole.

[0034] The above description is merely a detailed description of specific embodiments of the present invention. Any unspecified portions are conventional techniques. However, the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed in the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A steel cable guide support device for an aircraft, characterized in that: include: Guide plate, guide part A, guide part B, ferrule and steel cable, The guide plate is installed on the aircraft body and is provided with guide holes for installing guide parts A and guide parts B. The guide holes on the guide plate are provided with grooves that allow the steel cable to be installed into or removed from the guide holes from the outside of the guide plate; the structures of guide parts B and guide parts A are the same, both are half-gyroscopic structures, and guide parts A and guide parts B can be combined into a complete gyroscopic structure; the inside of the ferrule is a through hole with a diameter matching the outer diameter of the guide part A, and a groove of a preset width is provided from the ferrule through hole to the outer circle.

2. The device according to claim 1, characterized in that A groove with a width of 1.1 to 1.2 times the diameter of the steel cable is provided from the guide hole of the guide plate to the edge of the guide plate.

3. The device according to claim 1, characterized in that The outer diameter of the guide member A is the same as the diameter of the guide hole on the guide plate.

4. The device according to claim 1, characterized in that The guide member A has two ends along its axial direction, one end of which is provided with a protruding structure. The outer circle of the guide member A is provided with multi-layer grooves distributed along the axial direction. The center of the guide member A is a through hole with a diameter of 1.1 to 1.2 times the diameter of the steel cable.

5. The device according to claim 1, characterized in that The ferrule is an elastic part, and the diameter of the internal through hole of the ferrule is 1.2 to 1.4 times the outer diameter of the guide part A. The through hole is provided with multi-layer grooves distributed along the axial direction, with the same tooth shape as the multi-layer grooves on the outer circle of the guide part A; a groove with a width of 1.1 to 1.2 times the diameter of the steel cable is provided from the internal through hole of the ferrule to the outer circle.

6. The device according to claim 5, characterized in that The device also includes a cable tie, and a convolution groove for arranging the cable tie is provided in the middle of the outer circle of the ferrule.

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