Headlamp of rotor aircraft

Abstract

The utility model discloses a headlamp of rotor type aircraft relates to unmanned aerial vehicle technical field, including first lamp holder and second lamp holder, arc toothed plate up-down swing and arc support left-right swing center and spherical joint concentric arrangement, the transmission mechanism keeps the synchronous deflection of lighting lamp on both sides, and the spherical joint is connected with the spherical joint. According to the device, through ingenious combination of double stepping motor driving and a transmission mechanism, multi-angle adjustment of the headlamp of the rotor type aircraft is achieved, synchronous pitching adjustment of the illuminating lamps on the two sides in the vertical direction is guaranteed, and the synchronous pitching adjustment of the illuminating lamps on the two sides in the vertical direction is achieved. A second stepping motor drives an arc-shaped support to swing horizontally through meshing transmission of a second gear and an arc-shaped tooth block, horizontal deflection linkage of the illuminating lamps on the two sides is achieved in cooperation with synchronous driving operation of a transmission mechanism, and consistency of the illuminating directions of the two lamps is guaranteed through the device. And the weight burden and the power consumption caused by an independent driving motor system are obviously reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to a headlamp for a rotary-wing aircraft. Background Art

[0002] When rotorcraft operate at night or in low visibility environments, adjusting the lighting angle of the headlights is crucial to flight safety and mission execution.

[0003] Traditional headlamp adjustment devices mostly use independent motor control. Although the dual-lamp adjustment solution controlled by independent motors can achieve multi-angle adjustment, it is difficult to ensure the synchronization of the lights on both sides, and it also increases equipment weight and power consumption. To solve the above problems, we provide a headlamp for rotorcraft. Utility Model Content

[0004] The purpose of the present invention is to provide a headlamp for a rotorcraft to solve the problem that the traditional headlamp adjustment device proposed in the above background technology mostly adopts an independent motor control method. Although the dual-lamp adjustment scheme controlled by the independent motor can achieve multi-angle adjustment, it is difficult to ensure the synchronization of the lighting lamps on both sides, and at the same time increases the weight of the equipment and the power consumption.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A headlamp for a rotary-wing aircraft, comprising a first lamp holder and a second lamp holder symmetrically arranged, wherein the first lamp holder and the second lamp holder are both rotatably connected to a lighting lamp via a spherical joint;

[0006] An arc-shaped tooth plate fixed to the back of the lighting lamp;

[0007] An arc-shaped bracket is slidably connected to the inner side of the arc-shaped tooth plate through a guide rail, and the two arc-shaped brackets are rotatably connected to the inside of the first lamp bracket and the second lamp bracket respectively;

[0008] A driven mechanism disposed on the back of the arc-shaped bracket;

[0009] A transmission mechanism disposed between two driven mechanisms;

[0010] A driving mechanism is provided at the bottom of the first lamp stand, which directly drives the arc-shaped bracket on one side to swing left and right, and links the arc-shaped bracket on the other side through the transmission mechanism;

[0011] The first stepper motor is installed on the arc-shaped bracket, and the first stepper motor drives the arc-shaped gear plate through the driven mechanism to drive the lighting lamp to swing up and down;

[0012] The swing centers of the arc-shaped tooth plate swinging up and down and the arc-shaped bracket swinging left and right are concentrically arranged with the spherical joint, and the transmission mechanism enables the lighting lamps on both sides to maintain synchronous deflection.

[0013] Preferably, the driven mechanism includes a rotating rod, the back side of the arc-shaped bracket is rotatably connected to the rotating rod, the output end of the first stepper motor is bolted to the rotating rod through a coupling, a second gear is fixedly sleeved on the surface of the rotating rod, and the surface of the second gear is meshed with the arc-shaped gear plate through teeth.

[0014] Preferably, the transmission mechanism includes a transmission shaft, both ends of the transmission shaft are fixedly sleeved with universal joints, and the other end of the universal joint is fixedly sleeved with the rotating rod.

[0015] Preferably, the top and bottom of the arc bracket are fixedly connected with an arc block, the top and bottom of the first lamp holder and the second lamp holder are provided with an arc groove adapted to the arc block, and the surface of the arc block is slidably connected to the arc groove.

[0016] Preferably, the driving mechanism includes a mounting plate, the bottom of the first lamp holder is fixedly connected to the mounting plate, the bottom of the mounting plate is bolted with a second stepper motor, the output end of the second stepper motor is fixedly sleeved with a first gear, the surface of the first gear is meshed with an arc-shaped tooth block through teeth, and the top of the arc-shaped tooth block is bolted to the arc block.

[0017] The utility model has the following beneficial effects:

[0018] This device achieves multi-angle adjustment of the headlights of rotorcraft through the ingenious combination of dual-stepper motor drive and transmission mechanism. The first stepper motor ensures the synchronous pitch adjustment of the lights on both sides in the vertical direction through the parallel linkage composed of the rotating rod, universal joint and transmission shaft. The second stepper motor drives the arc-shaped bracket to swing horizontally through the engagement transmission of the second gear and the arc-shaped gear block, and cooperates with the synchronous drive operation of the transmission mechanism to achieve horizontal deflection linkage of the lights on both sides. This device ensures the consistency of the lighting direction of the two lights and significantly reduces the weight burden and power consumption brought by the independent drive motor system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 3 This is an exploded view of the local structure of the utility model;

[0022] Figure 4 It is an exploded view of the local structure of the utility model.

[0023] Figure numerals: 1. first lamp holder; 2. second lamp holder; 3. arc-shaped bracket; 4. arc-shaped gear plate; 5. lighting lamp; 6. driving mechanism; 61. mounting plate; 62. second stepping motor; 63. first gear; 64. arc-shaped gear block; 7. driven mechanism; 71. rotating rod; 72. second gear; 8. transmission mechanism; 81. transmission shaft; 82. universal joint; 9. first stepping motor; 10. arc-shaped block; 11. arc-shaped groove. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] Example 1:

[0026] refer to Figure 1-4 A headlamp for a rotary-wing aircraft comprises a first lamp holder 1 and a second lamp holder 2 symmetrically arranged, wherein a lighting lamp 5 is rotatably connected to the first lamp holder 1 and the second lamp holder 2 via a spherical joint;

[0027] An arc-shaped tooth plate 4 fixed to the back of the lighting lamp 5;

[0028] The arc-shaped bracket 3 is slidably connected to the inner side of the arc-shaped tooth plate 4 through a guide rail, and the two arc-shaped brackets 3 are respectively rotatably connected to the inside of the first lamp holder 1 and the second lamp holder 2;

[0029] A driven mechanism 7 is provided on the back of the arc-shaped bracket 3;

[0030] A transmission mechanism 8 is provided between the two driven mechanisms 7;

[0031] A driving mechanism 6 is provided at the bottom of the first lamp holder 1. The driving mechanism 6 directly drives the arc-shaped bracket 3 on one side to swing left and right, and links the arc-shaped bracket 3 on the other side through the transmission mechanism 8.

[0032] The first stepper motor 9 is mounted on the arc-shaped bracket 3, and the first stepper motor 9 drives the arc-shaped gear plate 4 through the driven mechanism 7 to drive the lighting lamp 5 to swing up and down;

[0033] The swing centers of the arc-shaped toothed plate 4 and the arc-shaped bracket 3 are concentric with the spherical joint, and the transmission mechanism 8 enables the lighting lamps 5 on both sides to maintain synchronous deflection.

[0034] Specifically, the transmission shaft 81 can play both a transmission role and a connecting rod role. The device realizes multi-angle adjustment of the rotorcraft headlights through the ingenious combination of dual-stepper motor drive and transmission mechanism 8. The first stepper motor 9 is connected in parallel with the transmission shaft 81 through the rotating rod 71, the universal joint 82, and the transmission shaft 81 to ensure the synchronous pitch adjustment of the lighting lamps 5 on both sides in the vertical direction. The second stepper motor 62 drives the arc-shaped bracket 3 to swing horizontally through the meshing transmission of the first gear 63 and the arc-shaped gear block 64, and cooperates with the synchronous driving operation of the transmission mechanism 8 to realize the horizontal deflection linkage of the lighting lamps 5 on both sides. The device ensures the consistency of the lighting direction of the two lights, and significantly reduces the weight burden and power consumption brought by the independent drive motor system.

[0035] refer to Figure 4 The driven mechanism 7 includes a rotating rod 71. The back of the arc-shaped bracket 3 is rotatably connected to the rotating rod 71. The output end of the first stepper motor 9 is bolted to the rotating rod 71 through a coupling. The surface of the rotating rod 71 is fixedly sleeved with a second gear 72. The surface of the second gear 72 engages with the arc-shaped toothed plate 4 through teeth. By starting the first stepper motor 9 to drive the rotating rod 71 to rotate, the rotating rod 71 drives the arc-shaped toothed plate 4 to slide up and down along the curvature of the arc-shaped bracket 3 through the second gear 72. The arc-shaped toothed plate 4 drives the lighting lamp 5 to swing up and down.

[0036] refer to Figure 2 The transmission mechanism 8 includes a transmission shaft 81, and both ends of the transmission shaft 81 are fixedly sleeved with a universal joint 82. The other end of the universal joint 82 is fixedly sleeved with the rotating rod 71. By setting the transmission shaft 81, the two rotating rods 71 ​​can be synchronized. By setting the universal joint 82, the arc bracket 3 will not cause structural interference when swinging.

[0037] refer to Figure 1 The top and bottom of the arc bracket 3 are fixedly connected with an arc block 10, and the top and bottom of the first lamp holder 1 and the second lamp holder 2 are provided with an arc groove 11 adapted to the arc block 10. The surface of the arc block 10 is slidably connected to the arc groove 11. By setting the arc groove 11 and the arc block 10, the arc bracket 3 drives the arc block 10 to slide smoothly inside the arc groove 11.

[0038] refer to Figure 3 and Figure 4The driving mechanism 6 includes a mounting plate 61. The bottom of the first lamp holder 1 is fixedly connected to the mounting plate 61. The bottom of the mounting plate 61 is bolted with a second stepping motor 62. The output end of the second stepping motor 62 is fixedly sleeved with a first gear 63. The surface of the first gear 63 is meshed with an arc-shaped tooth block 64 through teeth. The top of the arc-shaped tooth block 64 is bolted to the arc block 10. By starting the second stepping motor 62, the first gear 63 is driven to rotate. The first gear 63 drives the arc block 10 to slide along the inside of the arc groove 11 through the arc-shaped tooth block 64, and drives the lighting lamp 5 to swing left and right through the arc bracket 3.

[0039] refer to Figure 3 The spherical joint includes a concave ring. The interiors of the first lamp holder 1 and the second lamp holder 2 are fixedly connected to the two concave rings respectively. The surface of the lighting lamp 5 is fixedly sleeved with a convex ring. The interior of the concave ring is rotatably sleeved with the convex ring, so that the lighting lamp 5 drives the convex ring to swing in multiple directions inside the concave ring.

[0040] Brief description of the usage process: Start the first stepper motor 9 to drive the rotating rod 71 to rotate, and the rotating rod 71 drives the other rotating rod 71 on one side to rotate synchronously through the universal joint 82 and the transmission shaft 81, so that the rotating rod 71 drives the arc gear plate 4 to slide along the curvature of the arc bracket 3 through the second gear 72, and the arc gear plate 4 drives the lighting lamp 5 to swing up and down. Start the second stepper motor 62 to drive the first gear 63 to rotate, and the first gear 63 drives the arc bracket 3 to swing left and right through the arc gear block 64. The arc bracket 3 drives the other arc bracket 3 on one side through the transmission mechanism 8 to swing left and right synchronously, so that the device can synchronously drive the two lighting lamps 5 to be adjusted up and down and left and right synchronously through the two stepper motors.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A headlamp for a rotary-wing aircraft, comprising a first lamp holder (1) and a second lamp holder (2) symmetrically arranged, characterized in that: The first lamp stand (1) and the second lamp stand (2) are both rotatably connected to a lighting lamp (5) via a spherical joint. An arc-shaped tooth plate (4) fixed to the back of the lighting lamp (5); An arc-shaped bracket (3) is slidably connected to the inner side of the arc-shaped tooth plate (4) via a guide rail, and the two arc-shaped brackets (3) are rotatably connected to the inside of the first lamp holder (1) and the second lamp holder (2) respectively; A driven mechanism (7) disposed on the back of the arc-shaped bracket (3); A transmission mechanism (8) disposed between the two driven mechanisms (7); A driving mechanism (6) is provided at the bottom of the first lamp stand (1), and the driving mechanism (6) directly drives the arc-shaped bracket (3) on one side to swing left and right, and drives the arc-shaped bracket (3) on the other side through a transmission mechanism (8); A first stepper motor (9) is mounted on the arc-shaped bracket (3), and the first stepper motor (9) drives the arc-shaped tooth plate (4) through the driven mechanism (7) to drive the lighting lamp (5) to swing up and down; The centers of the upward and downward swing of the arc-shaped toothed plate (4) and the leftward and rightward swing of the arc-shaped bracket (3) are concentrically arranged with the spherical joint, and the transmission mechanism (8) enables the lighting lamps (5) on both sides to maintain synchronous deflection.

2. The rotorcraft headlamp according to claim 1, characterized in that: The driven mechanism (7) includes a rotating rod (71), the back of the arc-shaped bracket (3) is rotatably connected to the rotating rod (71), the output end of the first stepper motor (9) is bolted to the rotating rod (71) through a coupling, and a second gear (72) is fixedly sleeved on the surface of the rotating rod (71), and the surface of the second gear (72) is meshed with the arc-shaped gear plate (4) through teeth.

3. The rotorcraft headlamp according to claim 2, characterized in that: The transmission mechanism (8) comprises a transmission shaft (81), both ends of the transmission shaft (81) are fixedly sleeved with universal joints (82), and the other end of the universal joint (82) is fixedly sleeved with the rotating rod (71).

4. The rotorcraft headlamp according to claim 1, characterized in that: The top and bottom of the arc-shaped bracket (3) are both fixedly connected to an arc-shaped block (10); the top and bottom of the first lamp holder (1) and the second lamp holder (2) are both provided with an arc-shaped groove (11) adapted to the arc-shaped block (10); and the surface of the arc-shaped block (10) is slidably connected to the arc-shaped groove (11).

5. The rotorcraft headlamp according to claim 4, characterized in that: The driving mechanism (6) comprises a mounting plate (61), the bottom of the first lamp holder (1) is fixedly connected to the mounting plate (61), a second stepper motor (62) is bolted to the bottom of the mounting plate (61), an output end of the second stepper motor (62) is fixedly sleeved with a first gear (63), a surface of the first gear (63) is meshed with an arcuate tooth block (64) through teeth, and the top of the arcuate tooth block (64) is bolted to the arcuate block (10).

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