Structure for connecting vertical fin and driver

Abstract

The invention provides a structure for connecting a vertical fin and a driver, and belongs to the technical field of aircraft structure design-empennage structure, and the structure for connecting the vertical fin and the driver comprises a partition plate mounted below a vertical tail tip rib, and a left connector assembly and a right connector assembly which are mounted above the vertical tail tip rib, the left connector assembly and the right connector assembly are symmetrically installed relative to the plane of symmetry of an airplane, and the left connector assembly and the right connector assembly are inserted into two notches in the driver and movably connected with the driver. According to the structure, damage safety design is adopted, the bush has a lubricating function, parts are easy to manufacture, the space size is smaller, maintenance is more convenient, and the use and maintenance requirements of the horizontal tail driver can be met.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft structure design-tail structure, and in particular relates to a structure for connecting a vertical tail with a driver. Background Art

[0002] The deflection of the horizontal tail of a T-tail adjustable horizontal tail aircraft is generally achieved by telescopic drive of a drive fixedly installed on the top of the vertical tail.

[0003] Most of the existing connection structures between the driver and the vertical tail are installed inside the vertical tail box section, which requires a large assembly space and maintenance space. Summary of the invention

[0004] In order to solve the technical problem that the connection structure between the driver and the vertical tail in the prior art is mostly installed inside the vertical tail box segment, which requires a large assembly space and maintenance space, the present invention provides a structure for connecting the driver and the vertical tail, which has a smaller size, reduces the required assembly space, and is more convenient for maintenance. The technical solution is as follows:

[0005] In a first aspect, a structure for connecting a vertical tail with a driver is provided, comprising: a partition installed below a tip rib of the vertical tail, and a left joint assembly and a right joint assembly installed above the tip rib of the vertical tail, wherein the left joint assembly and the right joint assembly are symmetrically installed on a symmetric plane of an aircraft,

[0006] The left joint assembly and the right joint assembly are inserted into two notches on the driver and are movably connected with the driver.

[0007] Optionally, the left joint assembly, the right joint assembly and the driver are connected via a pin shaft;

[0008] Each joint assembly includes: a left split joint and a right split joint, the left split joint and the right split joint are connected back to back, and hinge holes allowing the pin shaft to pass through are set at the positions where the left split joint and the right split joint are inserted into the driver.

[0009] Optionally, the hinge hole is provided with a bushing to prevent the hinge hole from being damaged by prolonged rotation of the pin shaft.

[0010] Optionally, the left split joint and the right split joint both include: a joint ear, a stopper, a diagonal brace, a vertical rib and a bottom plate.

[0011] Among them, the joint ears are arranged at the edge of the joint, the blocks are located on both sides of the hinge hole of the joint, the diagonal braces are arranged in the direction of the joint force line, the vertical ribs are arranged at the corners of the joint, and the bottom plate is connected to the vertical tail tip rib.

[0012] Optionally, an oil groove is provided on the inner wall of the bushing for injecting grease to lubricate the hinge hole during a maintenance period.

[0013] Optionally, the contact surfaces of the bushing and the hinge hole are coated with a sealant to isolate the mating surfaces and prevent electrochemical corrosion between the aluminum alloy and the stainless steel.

[0014] Optionally, the left split joint and the right split joint are aluminum alloy machined parts.

[0015] Optionally, the partition is an aluminum alloy machined part; and the bushing is a stainless steel part.

[0016] Optionally, the left joint assembly, the right joint assembly and the vertical tail tip rib are connected by bolts, and the partition plate and the vertical tail tip rib are connected by bolts.

[0017] The beneficial effects of the present invention are at least:

[0018] The present invention provides a structure for connecting a vertical tail with a driver, comprising: a partition installed below the vertical tail tip rib and a left joint assembly and a right joint assembly installed above the vertical tail tip rib, the left joint assembly and the right joint assembly being symmetrically installed on the symmetry plane of the aircraft, the left joint assembly and the right joint assembly being inserted into two notches on the driver and movably connected with the driver. The structure adopts a damage safety design, the bushing has a lubrication function, the parts are simple to manufacture, the space size is smaller, and the maintenance is more convenient, which can meet the use and maintenance requirements of the horizontal tail driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the connection structure between the drive and the vertical tail;

[0020] Figure 2 is a schematic diagram of the joint assembly;

[0021] Figure 3 is a schematic diagram of the partition structure;

[0022] Figure 4 It is a schematic diagram of the right split joint structure;

[0023] Figure 5 This is the bushing appearance diagram;

[0024] Among them: 1. partition, 2. left joint assembly, 3. right joint assembly, 4. left split joint, 4-1. joint ear, 4-2. stopper, 4-3. diagonal brace, 4-4. vertical rib, 4-5 bottom plate, 5. right split joint, 6. bushing, 6-1. oil tank. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below through specific implementation modes and drawings.

[0026] Figure 1 A schematic diagram of a structure for connecting a driver to a vertical tail provided in one embodiment of the present invention.

[0027] See also Figure 1 A structure for connecting a driver to a vertical tail provided by an embodiment of the present invention comprises: a partition plate 1 installed below the vertical tail tip rib and a left joint assembly 2 and a right joint assembly 3 installed above the vertical tail tip rib,

[0028] The left joint assembly 2 and the right joint assembly 3 are symmetrically installed on the symmetry plane of the aircraft.

[0029] The left joint assembly 2 and the right joint assembly 3 are inserted into two notches on the driver and are movably connected with the driver.

[0030] The left joint assembly 2 is taken as an example for explanation. The left joint assembly 2 adopts a damage safety design and is composed of a left split joint 4 and a right split joint 5. When a single split joint is damaged, the other split joint can provide sufficient support strength and effectively transfer the load. Figure 2 shown.

[0031] The left joint assembly 2 and the right joint assembly 3 are connected to the driver through a pin shaft;

[0032] Each joint assembly includes: a left split joint 4 and a right split joint 5,

[0033] The left split joint 4 is connected back to back with the right split joint 5 , and hinge holes for allowing the pin to pass through are arranged at the positions where the left split joint 4 and the right split joint 5 are inserted into the driver.

[0034] The partition 1 is an aluminum alloy machined part installed inside the vertical tail main wing box, and transmits the connecting structure load to the vertical tail main wing box wall panel through the arranged inclined force.

[0035] The partition 1 is used to transfer the load of the connecting structure to the main wing box wall panel, such as Figure 3 shown.

[0036] In one embodiment, the left joint assembly 2, the right joint assembly 3 and the vertical tail tip rib are connected by bolts.

[0037] In one embodiment, the bulkhead 1 is connected to the vertical tail tip rib by bolts.

[0038] In another embodiment, the present invention provides a structure for connecting a driver to a vertical tail, which, in addition to the above components, further comprises a bushing 6 at the hinge hole, so as to prevent the hinge hole from being damaged by prolonged rotation of the pin shaft.

[0039] In one possible implementation, Figure 4 As shown, the left split joint 4 and the right split joint 5 both include: a joint ear piece 4-1, a stopper 4-2, a diagonal brace 4-3, a vertical rib 4-4 and a bottom plate 4-5.

[0040] The joint lug 4-1 is arranged at the edge of the joint.

[0041] The stoppers 4-2 are located on both sides of the hinge hole of the joint.

[0042] The diagonal brace 4-3 is arranged in the direction of the joint force line.

[0043] The vertical reinforcement 4-4 is arranged at the corner of the joint.

[0044] The bottom plate 4-5 is connected to the vertical tail tip rib.

[0045] The left split joint 4 and the right split joint 5 are connected by bolts through the joint ear piece 4-1.

[0046] The stopper 4-2 clamps the bushing 6 in the middle of the stopper to prevent the bushing 6 from rotating.

[0047] The diagonal brace 4-3 and the vertical rib 4-3 can provide stable support between the base plate and the main body of the joint assembly. At the same time, the load between the base plate 4-5 and the main body of the joint can be dispersed through the diagonal brace 4-3 and the vertical rib 4-4, thereby improving the support stability.

[0048] In one embodiment, the left split joint 4 and the right split joint 5 are aluminum alloy machined parts.

[0049] The bushing 6 is made of stainless steel.

[0050] The contact surface between the bushing 6 and the hinge hole is coated with a sealant, which facilitates the isolation of the matching surfaces and prevents electrochemical corrosion between the aluminum alloy and the stainless steel.

[0051] In one embodiment, further, Figure 5 As shown, an oil groove 6-1 is also provided on the inner wall of the bushing 6 for injecting grease to lubricate the hinge hole during the maintenance period.

[0052] In the embodiment of the present invention, the left and right joint assemblies are assembled according to the spatial installation position requirements of the driver, and are connected to the vertical tail tip rib by bolts. The assembly accuracy of the hinge holes of the two joint assemblies is controlled by the coaxiality requirements of the inner hole of the bushing 6 to meet the driver installation requirements.

[0053] During assembly, the split parts are assembled into joint components using bolts. A single joint component is pressed into the bushing 6 at the hinge point of the driver. An oil groove 6-1 is set on the inner wall of the bushing. Grease is injected to lubricate the hinge point during the maintenance cycle. The two symmetrical joint components are mechanically connected to the vertical tail tip rib through the bottom plate according to the installation requirements of the driver's spatial position to form a connection structure between the driver and the vertical tail.

[0054] In summary, the connection structure adopts a damage safety design, the bushing has a lubrication function, the parts are simple to manufacture, and the space size is smaller, which can meet the use and maintenance requirements of the horizontal tail drive.

[0055] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. In addition, the parts not detailed in the present invention are all conventional technologies.

Claims

1. A structure for connecting a vertical tail with a driver, characterized in that: include: The partition installed below the vertical tail tip rib and the left joint assembly and the right joint assembly installed above the vertical tail tip rib are symmetrically installed on the symmetry plane of the aircraft. The left joint assembly and the right joint assembly are inserted into two notches on the driver and are movably connected with the driver.

2. The structure according to claim 1, characterized in that: The left joint assembly, the right joint assembly and the driver are connected via a pin shaft; Each joint assembly includes: a left split joint and a right split joint, the left split joint and the right split joint are connected back to back, and hinge holes allowing the pin shaft to pass through are set at the positions where the left split joint and the right split joint are inserted into the driver.

3. The structure according to claim 2, characterized in that: The hinge hole is provided with a bushing.

4. The structure according to claim 2, characterized in that: The left split joint and the right split joint both include: joint ears, blocks, diagonal braces, vertical ribs and bottom plates. Among them, the joint ears are arranged at the edge of the joint, the blocks are located on both sides of the hinge hole of the joint, the diagonal braces are arranged in the direction of the joint force line, the vertical ribs are arranged at the corners of the joint, and the bottom plate is connected to the vertical tail tip rib.

5. The structure according to claim 3, characterized in that: An oil groove is arranged on the inner wall of the bushing.

6. The structure according to claim 3, characterized in that: The contact surfaces of the bushing and the hinge hole are coated with a sealant.

7. The structure according to claim 2, characterized in that: The left split joint and the right split joint are aluminum alloy machined parts.

8. The structure according to claim 3, characterized in that: The partition is an aluminum alloy machined part; the bushing is a stainless steel part.

9. The structure according to claim 1, characterized in that The left joint assembly, the right joint assembly and the vertical tail tip rib are connected by bolts, and the bulkhead and the vertical tail tip rib are connected by bolts.

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