Double-shear torsion bar type sealing plate

Abstract

The utility model belongs to the field of aircraft structure design, and particularly relates to a double-shear torsion bar type sealing plate which comprises a hanging belt plate, a sealing skin, a torsion bar, a torsion support and a fixed support. The hanging belt plate and the sealing skin are arranged on the two sides of the torsion bar respectively. Square torsion heads are arranged at the two ends and the middle of the torsion bar, square torsion holes are formed in one end of the hanging belt plate, the torsion support and the fixed support, and the square torsion holes are connected with the corresponding square torsion heads on the torsion bar. After assembly is completed, the rear edge of the sealing skin is pushed by the control surface structure so that the sealing skin can rotate around the axis of the torsion bar, and the torsion bar is in a torsional deformation state and provides restoring force for the sealing skin. That is, large displacement formed by swinging of the rear edge of the sealing skin is achieved through torsional deformation of the torsion bar, so that stress and strain on the sealing plate are greatly reduced. The size of the torsion driving force can be adjusted by adjusting the size of the preset torsion angle. The torsion bar is small in occupied space and simple and reliable in torsion mechanism.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of aircraft structure design, and particularly relates to a double-shear torsion rod type seal plate. BACKGROUND

[0002] In the aircraft structure design, gaps are often reserved between the fixed structure and the moving parts on the aircraft body, which will have adverse effects on aerodynamics, etc. In order to eliminate these effects, a seal plate measure needs to be taken. The existing seal measures have the disadvantages of large structure size, small seal driving force, large seal structure deformation, high stress level, etc.

[0003] Therefore, how to improve the seal driving force of the locking mechanism is a problem to be solved. SUMMARY

[0004] The application aims to provide a double-shear torsion rod type seal plate to solve the problem of insufficient driving force of the existing seal mechanism.

[0005] The technical scheme of the application is: a double-shear torsion rod type seal plate, comprising a suspension belt plate, a seal skin, a torsion rod, a torsion support and a fixed support; the suspension belt plate and the seal skin are respectively arranged on the two sides of the torsion rod; the two ends and the middle part of the torsion rod are each provided with a square torsion head, one end of the suspension belt plate, the torsion support and the fixed support are each provided with a square torsion hole, and the square torsion hole is connected with the corresponding square torsion head on the torsion rod; the suspension belt plate and the seal skin are each provided with a round hole, and the suspension belt plate and the seal skin are connected through the round hole; the torsion support is arranged at the middle part of the torsion rod, and the bottom of the torsion support is fixedly connected with the seal skin; and the fixed support is arranged at the end part of the torsion rod, and one side of the fixed support is connected with the suspension belt plate.

[0006] Preferably, the suspension belt plate comprises a first rotation shaft ear piece, a second rotation shaft ear piece and a first torsion ear piece; the first rotation shaft ear piece is provided with a first rotation shaft hole, the second rotation shaft ear piece is provided with a second rotation shaft hole, and the first torsion ear piece is provided with a first square torsion hole; the first rotation shaft hole and the second rotation shaft hole are coaxially arranged round holes; the first square torsion hole is connected with the square torsion head at the end part of the torsion rod; and the first rotation shaft hole and the second rotation shaft hole can be connected with the seal skin.

[0007] Preferably, the third rotation shaft ear, the fourth rotation shaft ear, the fifth rotation shaft ear and the sixth rotation shaft ear are arranged on the sealing skin; the third rotation shaft hole is arranged on the third rotation shaft ear, the fourth rotation shaft hole is arranged on the fourth rotation shaft ear, the fifth rotation shaft hole is arranged on the fifth rotation shaft ear, and the sixth rotation shaft hole is arranged on the sixth rotation shaft ear; the third rotation shaft hole, the fourth rotation shaft hole, the fifth rotation shaft hole and the sixth rotation shaft hole are coaxially arranged; the first rotation shaft ear is inserted between the third rotation shaft ear and the fourth rotation shaft ear, the second rotation shaft ear is inserted between the fifth rotation shaft ear and the sixth rotation shaft ear, and the first rotation shaft hole, the second rotation shaft hole and the third rotation shaft hole are coaxially arranged.

[0008] Preferably, the torsion rod is provided with a first torsion head, a second torsion head and a third torsion head; the first torsion head, the second torsion head and the third torsion head are all square sections; the first torsion head and the third torsion head are respectively arranged at two ends of the torsion rod; and the second torsion head is arranged at the middle of the torsion rod.

[0009] Preferably, the torsion support is provided with a second square torsion hole; the second square torsion hole is connected with the second torsion head; the torsion support is horizontally arranged; and the bottom of the torsion support is connected with the sealing skin through a fastener.

[0010] Preferably, the fixing support is vertically arranged; one side of the fixing support is connected with the suspension band plate through a fastener; the other side of the fixing support is provided with a third square torsion hole; the third square torsion hole is connected with the third torsion head; and the middle of the fixing support is provided with a supporting plate abutting against the suspension band plate.

[0011] The double-shear torsion rod type sealing plate of the present application is assembled and completed; the rear edge of the sealing skin is pushed by the rudder surface structure to make the sealing skin rotate around the torsion rod axis; the torsion rod is in a torsional deformation state and provides a restoring force of the sealing skin. That is, the rear edge of the sealing skin swings to form a large displacement, which is realized by the torsional deformation of the torsion rod, so that the stress and strain on the sealing plate are greatly reduced. By adjusting the size of the preset torsion angle, the size of the torsional driving force can be adjusted. The torsion rod occupies a small space and the torsion mechanism is simple and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions provided by the present application, the following will briefly introduce the drawings. Obviously, the drawings described below are only some embodiments of the present application.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 It is a schematic diagram of the suspension band plate structure of the present application;

[0015] Figure 3 Figure 1 is a schematic diagram of a sealing skin structure of the present application;

[0016] Figure 4 Figure 2 is a schematic diagram of a torsion bar structure of the present application;

[0017] Figure 5 Figure 3 is a schematic diagram of a torsion support structure of the present application;

[0018] Figure 6 Figure 4 is a schematic diagram of a fixed support structure of the present application.

[0019] 1, hanging strap plate; 11, first rotation shaft ear; 12, second rotation shaft ear; 13, first torsion ear; 14, first rotation shaft hole; 15, second rotation shaft hole; 16, first square torsion hole; 2, sealing skin; 21, third rotation shaft ear; 22, fourth rotation shaft ear; 23, fifth rotation shaft ear; 24, sixth rotation shaft ear; 25, third rotation shaft hole; 26, fourth rotation shaft hole; 27, fifth rotation shaft hole; 28, sixth rotation shaft hole; 3, torsion bar; 31, first torsion head; 32, second torsion head; 33, third torsion head; 4, torsion support; 41, second square torsion hole; 5, fixed support; 51, third square torsion hole; 52, support plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0021] A double-shear torsion bar type sealing plate, as shown in Figure 1 , comprises a hanging strap plate 1, a sealing skin 2, a torsion bar 3, a torsion support 4 and a fixed support 5. The hanging strap plate 1 and the sealing skin 2 are respectively arranged on the two sides of the torsion bar 3; square torsion heads are arranged at the two ends and the middle of the torsion bar 3; square torsion holes are arranged on one end of the hanging strap plate 1, the torsion support 4 and the fixed support 5, and the square torsion holes are connected with the corresponding square torsion heads on the torsion bar 3; circular holes are arranged on the hanging strap plate 1 and the sealing skin 2, and the hanging strap plate 1 and the sealing skin 2 are connected through the circular holes; the torsion support 4 is arranged at the middle of the torsion bar 3, and the bottom of the torsion support 4 is fixedly connected with the sealing skin 2; and the fixed support 5 is arranged at the end of the torsion bar 3, and one side of the fixed support 5 is connected with the hanging strap plate 1.

[0022] After assembly, the trailing edge of the sealing skin 2 is pushed by the rudder structure to make the sealing skin 2 rotate around the torsion bar 3 axis, the torsion bar 3 is in torsional deformation state and provides the restoring force of the sealing skin 2. That is, the large displacement of the trailing edge of the sealing skin 2 is achieved by the torsional deformation of the torsion bar 3, so that the stress and strain on the sealing plate are greatly reduced. By adjusting the size of the preset torsion angle, the size of the torsional driving force can be adjusted. The torsion bar 3 occupies a small space and the torsion mechanism is simple and reliable.

[0023] Preferably, as Figure 2 , the suspension belt plate 1 comprises a first rotation shaft ear 11, a second rotation shaft ear 12 and a first torsion ear 13; the first rotation shaft ear 11 is provided with a first rotation shaft hole 14, the second rotation shaft ear 12 is provided with a second rotation shaft hole 15, and the first torsion ear 13 is provided with a first square torsion hole 16; the first rotation shaft hole 14 and the second rotation shaft hole 15 are coaxially arranged circular holes; the first square torsion hole 16 is connected with the square torsion head at the end of the torsion bar 3; the first rotation shaft hole 14 and the second rotation shaft hole 15 can be connected with the sealing skin 2.

[0024] Preferably, as Figure 3 , the sealing skin 2 is provided with a third rotation shaft ear 21, a fourth rotation shaft ear 22, a fifth rotation shaft ear 23 and a sixth rotation shaft ear 24. The third rotation shaft ear 21 is provided with a third rotation shaft hole 25, the fourth rotation shaft ear 22 is provided with a fourth rotation shaft hole 26, the fifth rotation shaft ear 23 is provided with a fifth rotation shaft hole 27, and the sixth rotation shaft ear 24 is provided with a sixth rotation shaft hole 28. The third rotation shaft hole 25, the fourth rotation shaft hole 26, the fifth rotation shaft hole 27 and the sixth rotation shaft hole 28 are coaxially arranged, the first rotation shaft ear 11 is inserted between the third rotation shaft ear 21 and the fourth rotation shaft ear 22, the second rotation shaft ear 12 is inserted between the fifth rotation shaft ear 23 and the sixth rotation shaft ear 24, and the first rotation shaft hole 14, the second rotation shaft hole 15 and the third rotation shaft hole 25 are coaxially arranged to facilitate connection.

[0025] Preferably, as Figure 4 , the torsion bar 3 is provided with a first torsion head 31, a second torsion head 32 and a third torsion head 33, the first torsion head 31, the second torsion head 32 and the third torsion head 33 are all square in cross section, the first torsion head 31 and the third torsion head 33 are respectively arranged at the two ends of the torsion bar 3, and the second torsion head 32 is arranged at the middle of the torsion bar 3. The first torsion head 31 is connected with the suspension belt plate 1, the outer surface of the second torsion head 32 and the outer surface of the first torsion head 31 have an included angle, and the size of the included angle determines the size of the pre-tightening force of the sealing plate.

[0026] Preferably, as Figure 5The torsion support 4 is horizontally arranged, and the bottom of the torsion support 4 is connected with the sealing skin 2 through fasteners, which can be standard parts.

[0027] Preferably, as Figure 6 The fixed support 5 is vertically arranged, one side of the fixed support 5 is connected with the suspension belt plate 1 through fasteners, and the other side is provided with a third square torsion hole 51 connected with a third torsion head 33, and the middle of the fixed support 5 is provided with a support plate 52 abutting against the suspension belt plate 1 for limiting between the suspension belt plate 1 and the fixed support 5, and the fasteners can be standard parts.

[0028] When assembling, the first torsion head 31 on the torsion rod 3 is installed in the first torsion hole on the suspension belt plate 1, the second torsion head 32 on the torsion rod 3 is installed in the second square torsion hole 41 of the torsion support 4, and the third torsion head 33 on the torsion rod 3 is installed in the third square torsion hole 51 of the fixed support 5.

[0029] First, a bolt is sequentially threaded through the third rotation shaft hole 25, the first rotation shaft hole 14 and the fourth rotation shaft hole 26, and then the bolt is tightened through a nut. Then, another bolt is sequentially threaded through the fifth rotation shaft hole 27, the second rotation shaft hole 15 and the sixth rotation shaft hole 28, and then the bolt is tightened through a nut. Finally, the torsion support 4 is installed on the sealing skin 2 using fasteners, and the fixed support 5 is installed on the sealing belt plate using fasteners.

[0030] Finally, it should be noted that the drawings of the disclosed embodiments only involve the structures involved in the disclosed embodiments, and other structures can be referred to the general design, and in the case of no conflict, the same embodiments and different embodiments of the present application can be combined with each other;

[0031] Finally, the above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A double-shear torsion bar type sealing plate, characterized in that: The device includes a suspension belt plate (1), a sealing skin (2), a torsion bar (3), a torsion support (4), and a fixed support (5). The suspension belt plate (1) and the sealing skin (2) are respectively located on both sides of the torsion bar (3). The torsion bar (3) has square torsion heads at both ends and in the middle. The suspension belt plate (1), the torsion support (4), and the fixed support (5) all have square torsion holes. The square torsion holes are connected to the corresponding square torsion heads on the torsion bar (3). The suspension belt plate (1) and the sealing skin (2) both have round holes. The suspension belt plate (1) and the sealing skin (2) are connected through the round holes. The torsion support (4) is located in the middle of the torsion bar (3) and its bottom is fixedly connected to the sealing skin (2). The fixed support (5) is located at the end of the torsion bar (3) and one side of the fixed support (5) is connected to the suspension belt plate (1).

2. The double shear torsion bar sealing plate as described in claim 1, characterized in that: The suspension belt plate (1) includes a first pivot lug (11), a second pivot lug (12), and a first torsion lug (13); the first pivot lug (11) is provided with a first pivot hole (14), the second pivot lug (12) is provided with a second pivot hole (15), and the first torsion lug (13) is provided with a first square torsion hole (16); the first pivot hole (14) and the second pivot hole (15) are coaxially arranged round holes; the first square torsion hole (16) is connected to the square torsion head at the end of the torsion bar (3); the first pivot hole (14) and the second pivot hole (15) can both be connected to the sealing skin (2).

3. The double shear torsion bar sealing plate as described in claim 2, characterized in that: The sealing skin (2) is provided with a third pivot lug (21), a fourth pivot lug (22), a fifth pivot lug (23), and a sixth pivot lug (24); the third pivot lug (21) is provided with a third pivot hole (25), the fourth pivot lug (22) is provided with a fourth pivot hole (26), the fifth pivot lug (23) is provided with a fifth pivot hole (27), and the sixth pivot lug (24) is provided with a sixth pivot hole (28); The third pivot hole (25), the fourth pivot hole (26), the fifth pivot hole (27) and the sixth pivot hole (28) are all coaxially arranged. The first pivot lug (11) is inserted between the third pivot lug (21) and the fourth pivot lug (22). The second pivot lug (12) is inserted between the fifth pivot lug (23) and the sixth pivot lug (24). The first pivot hole (14), the second pivot hole (15) and the third pivot hole (25) are coaxially arranged.

4. The double-shear torsion bar sealing plate as described in claim 1, characterized in that: The torsion bar (3) is provided with a first torsion head (31), a second torsion head (32) and a third torsion head (33). The first torsion head (31), the second torsion head (32) and the third torsion head (33) are all square cross sections. The first torsion head (31) and the third torsion head (33) are respectively located at both ends of the torsion bar (3), and the second torsion head (32) is located in the middle of the torsion bar (3). The outer surface of the second torsion head (32) and the outer surface of the first torsion head (31) have an angle.

5. The double-shear torsion bar sealing plate as described in claim 4, characterized in that: The torsion support (4) is provided with a second square torsion hole (41), which is connected to the second torsion head (32). The torsion support (4) is horizontally arranged, and the bottom of the torsion support (4) is connected to the sealing skin (2) by fasteners.

6. The double shear torsion bar sealing plate as described in claim 4, characterized in that: The fixed support (5) is vertically arranged. One side of the fixed support (5) is connected to the suspension belt plate (1) by fasteners, and the other side is provided with a third-shaped torsion hole (51). The third-shaped torsion hole (51) is connected to the third torsion head (33). The middle part of the fixed support (5) is provided with a support plate (52) that abuts against the suspension belt plate (1).

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