Airplane control surface convenient to disassemble and maintain

Abstract

The utility model relates to an aircraft control surface convenient to disassemble and maintain. The control surface is mounted on a wing through a rotating shaft mechanism; slots corresponding to the control surfaces are formed in the wings, and the control surfaces are rotationally arranged in the slots; the rotating shaft mechanism comprises a connecting seat fixed on the side surface of the slot and a shaft bracket fixedly connected with the control surface; an upper semicircular shaft with an axial tangent plane is fixed at the end part of the rotating shaft; a central deep groove is formed in the connecting seat, and a lower semicircular shaft with an axial tangent plane is rotationally arranged in the central deep groove; and the upper semicircular shaft is fixedly connected with the lower semicircular shaft through a bolt. The two semicircular shafts with the axial tangent planes are arranged at the ends of the rotating shaft, so that the rotating shaft and the bearing seat are detachable, the control surface can be isolated from the bearing seat, and the situation that the whole weight is increased due to the fact that the control surface is detached and carries the bearing seat is avoided. The control surface is fixed together through the bolt between the cover plate and the connecting seat and the bolt between the two semicircular shafts, so that the connection of the control surface is more stable, the disassembly process is simple, and the working pressure of workers is not obviously increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aircraft, especially an aircraft control surface convenient to disassemble and maintain. BACKGROUND

[0002] The control surface is also called a control surface, which is a device installed on the wing of an aircraft, a drone or the like for realizing the turning, ascending, descending and rolling of the aircraft. The existing connection modes of the control surface mainly include shaft connection and hinge connection. The hinge connection mode has a simple structure and is convenient to disassemble, but is not as firm as the shaft connection. Similarly, the shaft connection mode has high stability, but has a complex structure and is not easy to disassemble, which causes inconvenience to the later maintenance.

[0003] The patent with the publication number CN208602688U and the name of a detachable control surface shaft mechanism of a drone discloses a control surface shaft mechanism convenient to disassemble, which realizes the technical effect that the control surface, the shaft and the bearing seat can be quickly disassembled from the wing by installing the shaft on the bearing seat and connecting the bearing seat and the wing through the embedded bolts. However, the stability of the control surface is still defective only by the bolts on the bearing seat. Moreover, the bearing seat is disassembled together with the shaft and the control surface, which increases the weight of the control surface as a whole and increases the difficulty of operation of the workers. SUMMARY

[0004] The purpose of the present application is to provide a control surface of an aircraft convenient to disassemble and maintain, aiming at solving the problems in the prior art.

[0005] The present application provides a control surface of an aircraft convenient to disassemble and maintain, which is installed on the wing through a shaft mechanism; a slot is formed on the wing corresponding to the control surface, and the control surface is rotatably arranged in the slot;

[0006] The shaft mechanism comprises a connecting seat fixed on the side surface of the slot and a shaft support fixedly connected with the control surface, the shaft support is connected with the shaft through a sleeve, and the end of the shaft is fixed with an upper semicircular shaft having an axial section; a stepped shallow groove is formed on the vertical side surface of the connecting seat, a deep central groove is formed in the center of the stepped shallow groove, a lower semicircular shaft having an axial section opposite to the axial section of the upper semicircular shaft is rotatably arranged in the deep central groove; the upper semicircular shaft and the lower semicircular shaft are both provided with shaft screw holes, and the upper semicircular shaft and the lower semicircular shaft are fixedly connected by screwing bolts into the shaft screw holes.

[0007] Further, a cover plate is arranged on the stepped shallow groove, and the cover plate can be embedded in the stepped shallow groove; a plate screw hole is formed on the cover plate, a stepped screw hole is formed on the step in the stepped shallow groove, and the cover plate is fixed in the stepped shallow groove by screwing bolts into the plate screw hole and the stepped screw hole.

[0008] Further, the lower semicircular shaft is rotatably connected to the connecting seat through a bearing.

[0009] Further, the shaft support is triangular, and a sleeve seat is fixed at one vertex of the shaft support, and the inner diameter of the sleeve seat matches the outer diameter of the rotating shaft, and the rotating shaft is fixed in the sleeve seat.

[0010] Further, in the initial state where the rudder surface does not rotate, the tangent plane of the lower semicircular shaft faces the direction of the notch of the connecting seat.

[0011] The beneficial effects of the utility model are: the utility model discloses the rotating shaft end part of the rudder surface rotation is provided with the axial tangent plane of two semicircular shafts, and the rotating shaft and the bearing seat are detachable, so that the rudder surface can be isolated with the bearing seat, and the overall weight is increased by avoiding disassembling the rudder surface with the bearing seat. The rudder surface is fixed by the bolt between the cover plate and the connecting seat and the bolt between the two semicircular shafts, so that the connection of the rudder surface is more stable, and the disassembling process is simple, and the working pressure of workers is not obviously increased. DRAWINGS

[0012] Figure 1 It is the whole structure schematic diagram of the utility model.

[0013] Figure 2 It is the structure schematic diagram of the rotating shaft mechanism of the utility model.

[0014] Figure 3 It is the connecting structure schematic diagram of the upper semicircular shaft and the lower semicircular shaft.

[0015] In the drawing:

[0016] 1, wing; 2, rudder surface; 3, slot; 4, connecting seat; 5, shaft support; 6, sleeve seat; 7, rotating shaft; 8, upper semicircular shaft; 9, step shallow groove; 10, center deep groove; 11, bearing; 12, lower semicircular shaft; 13, shaft screw hole; 14, cover plate; 15, plate screw hole; 16, step screw hole. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be apparently and completely described below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] A kind of aircraft rudder surface for facilitating disassembly maintenance, as shown in Figure 1 Rudder surface 2 is installed on wing 1 by rotating shaft mechanism. Corresponding to rudder surface 2, slot 3 extending horizontally and inwardly is formed in wing 1, and rudder surface 2 is rotatably arranged in slot 3. Rotating shaft mechanism includes connecting seat 4 fixed on the side of slot 3 and shaft support 5 fixedly connected with rudder surface 2.

[0019] As Figure 2 shown, the shaft bracket 5 is triangular, the shaft bracket 5 is connected with the rudder surface 2 through bolts, a sleeve seat 6 is fixed at one vertex of the shaft bracket 5, the inner diameter of the sleeve seat 6 matches the outer diameter of a rotating shaft 7, and the rotating shaft 7 is fixed in the sleeve seat 6. The end of the rotating shaft 7 is fixed with an upper semicircular shaft 8 with an axial section.

[0020] A stepped shallow groove 9 is formed on the vertical side of the connecting seat 4, a deep central groove 10 is formed in the center of the stepped shallow groove 9, and the deep central groove 10 is provided with an opening in the direction of the rotating shaft 7 so that the rotating shaft 7 can be inserted.

[0021] In the initial state where the rudder surface 2 does not rotate, the section of the lower semicircular shaft 12 faces the direction of the slot of the connecting seat 4, and the section of the upper semicircular shaft 8 faces away from the direction of the slot of the connecting seat 4. The upper semicircular shaft 8 and the lower semicircular shaft 12 are spliced together through the engagement of the sections. The same shaft screw holes 13 are formed on the upper semicircular shaft 8 and the lower semicircular shaft 12, and the upper semicircular shaft 8 and the lower semicircular shaft 12 are fixedly connected by screwing bolts into the shaft screw holes 13, as shown in Figure 3 .

[0022] A cover plate 14 is correspondingly arranged on the stepped shallow groove 9, and the cover plate 14 can be embedded in the stepped shallow groove 9. The cover plate 14 is provided with plate screw holes 15, and the steps in the stepped shallow groove 9 are provided with stepped screw holes 16. The cover plate 14 is fixed in the stepped shallow groove 9 by screwing bolts into the plate screw holes 15 and the stepped screw holes 16.

[0023] In this embodiment, the rotating shaft mechanism is arranged at both ends of the slot 3. When disassembling, the rudder surface 2 is in the initial state parallel to the wing 1. First, the bolts in the plate screw holes 15 are unscrewed to open the cover plate 14, so that the stepped shallow groove 9 and the deep central groove 10 are exposed. At this time, the arc surface of the upper semicircular shaft 8 is directly opposite the slot, and then the bolts in the shaft screw holes 13 are unscrewed, so that the rotating shaft 7 and the rudder surface 2 can be directly taken out transversely from the slot 3, and the rudder surface 2 can be repaired and replaced.

[0024] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view.

Claims

1. An aircraft control surface that facilitates disassembly for repair, characterized by, The rudder surface is installed on the wing through a rotating shaft mechanism; the wing is provided with a slot corresponding to the rudder surface, and the rudder surface is rotatably arranged in the slot; The rotating shaft mechanism comprises a connecting seat fixed on the side of the slot and a shaft support fixedly connected with the rudder surface, the shaft support is connected with the rotating shaft through a sleeve seat, and the end of the rotating shaft is fixed with an upper semicircular shaft with an axial section; a stepped shallow groove is formed in the vertical side of the connecting seat, a deep central groove is formed in the center of the stepped shallow groove, a lower semicircular shaft with an axial section is rotatably arranged in the central deep groove, and the axial section of the lower semicircular shaft is opposite to the axial section of the upper semicircular shaft; the upper semicircular shaft and the lower semicircular shaft are both provided with shaft screw holes, and the upper semicircular shaft and the lower semicircular shaft are fixedly connected by screwing bolts into the shaft screw holes.

2. The aircraft control surface facilitating disassembly and repair of claim 1, wherein, A cover plate is arranged on the stepped shallow groove, and the cover plate can be embedded in the stepped shallow groove; the cover plate is provided with a plate screw hole, the step of the stepped shallow groove is provided with a step screw hole, and the cover plate is fixed in the stepped shallow groove by screwing a bolt into the plate screw hole and the step screw hole.

3. The aircraft control surface facilitating disassembly and repair of claim 1, wherein, The lower semicircular shaft is rotatably connected to the connecting seat through a bearing.

4. The aircraft control surface facilitating disassembly and repair of claim 1, wherein, The shaft support is triangular, and a sleeve seat is fixed at one vertex of the shaft support, the inner diameter of the sleeve seat matches the outer diameter of the rotating shaft, and the rotating shaft is fixed in the sleeve seat.

5. The aircraft control surface facilitating disassembly and repair of claim 1, wherein, In the initial state where the rudder surface does not rotate, the section of the lower semicircular shaft faces the direction of the slot of the connecting seat.

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