Auxiliary inspection device for rotor blade

Abstract

The invention discloses a rotor blade auxiliary inspection device, and relates to the technical field of aerospace, the rotor blade auxiliary inspection device comprises a walking mechanism, a connecting shell and a shifting mechanism, the connecting shell is located at the front end of the walking mechanism and is hinged to the walking mechanism, the shifting mechanism is arranged on the connecting shell, and the connecting shell is connected with the shifting mechanism. The shifting mechanism comprises a shifting wheel, a shifting rod and a moving structure, the shifting wheel is used for shifting rotor blades, the shifting wheel is located at one end of the shifting rod, and the moving structure is used for driving the shifting rod to swing, advance and retreat. The shifting rod can swing, advance and retreat, and can avoid the supporting plate, so that the shifting wheel can shift the rotor blades.

Description

Technical Field

[0001] The invention relates to the field of aerospace technology, and in particular to a rotor blade auxiliary inspection device. Background Art

[0002] When an aircraft is flying, various foreign objects may enter the air intake duct and cause damage to the internal structure. Therefore, before and after the flight, equipment maintenance personnel need to check each channel of the aircraft to ensure that there are no foreign objects and structural damage inside that may cause accidents.

[0003] In the prior art, when inspecting each channel of an aircraft, special equipment maintenance personnel need to drill into the channel for inspection. The channel is narrow and has a smooth protective coating. Some special channels have protective structures that equipment maintenance personnel cannot cross. They can only use auxiliary observation equipment (cameras, telescopes, flashlights, etc.) to observe through the protective structures. The viewing angle and light are limited, and the inspection is time-consuming and laborious. Especially when observing the internal rotor blades, the viewing angle is severely limited, there are many blind spots, and auxiliary tools are needed to move the rotor blades for observation.

[0004] The support plates of some aircraft are of folded structure and evenly distributed in a circle, which will hinder the toggle mechanism from toggling the rotor blades. Summary of the invention

[0005] The object of the present invention is to provide a rotor blade auxiliary inspection device to solve the problems existing in the above-mentioned prior art. The lever can swing, move forward and backward, and the lever can avoid the support plate so that the thumbwheel can move the rotor blade.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a rotor blade auxiliary inspection device, comprising a walking mechanism, a connecting shell and a toggle mechanism, wherein the connecting shell is located at the front end of the walking mechanism and is hinged to the walking mechanism, the toggle mechanism is arranged on the connecting shell, the toggle mechanism comprises a dial wheel, a dial rod and a moving structure, the dial wheel is used to toggle the rotor blades, the dial wheel is located at one end of the dial rod, and the moving structure is used to drive the dial rod to swing, move forward and move backward.

[0008] Preferably, the moving structure includes a first lead screw, a second lead screw, a first rotation drive structure, a second rotation drive structure and a linear movement drive structure, the first lead screw and the second lead screw are arranged in parallel, the first lead screw is located in front of the second lead screw, the shift rod passes through a first mounting seat on the first lead screw, the shift rod slides relative to the first mounting seat, the shift rod and the first lead screw can rotate relative to each other, the first rotation drive structure can drive the first lead screw to rotate, the first mounting seat can move along the length direction of the first lead screw, the other end of the shift rod is arranged on a second mounting seat on the second lead screw, the shift rod and the second lead screw can rotate relative to each other, the second rotation drive structure can drive the second lead screw to rotate, the second mounting seat can move along the length direction of the second lead screw, and the linear movement drive structure can drive the second lead screw to approach or move away from the first lead screw.

[0009] Preferably, the first mounting seat includes a first nut and a first rotating block, the first nut is sleeved on the first lead screw and threadedly connected to the first lead screw, the first rotating block is rotationally connected to the first nut, and the shift rod is slidingly connected to the first rotating block; the second mounting seat includes a second nut and a second rotating block, the second nut is sleeved on the second lead screw and threadedly connected to the second lead screw, the second rotating block is rotationally connected to the second nut, and the other end of the shift rod is connected to the second rotating block.

[0010] Preferably, a fixing block is provided at both ends of the first lead screw, the first lead screw and the fixing block are rotatably connected via a bearing, and the fixing block is connected to the connecting shell.

[0011] Preferably, the first rotation drive structure includes a first motor, a first transmission wheel, a first synchronous belt and a second transmission wheel, the power output end of the first motor is coaxially connected to the first transmission wheel, the second transmission wheel is coaxially connected to the first screw, and the first transmission wheel and the second transmission wheel are connected through the first synchronous belt transmission.

[0012] Preferably, the second rotation drive structure includes a second motor, a third transmission wheel, a second synchronous belt and a fourth transmission wheel, the power output end of the second motor is coaxially connected to the third transmission wheel, the fourth transmission wheel is coaxially connected to the second screw, and the third transmission wheel and the fourth transmission wheel are connected via the second synchronous belt transmission.

[0013] Preferably, the linear motion driving structure includes a third motor, a first guide rail, a second guide rail, a first slider, a second slider, a fifth transmission wheel, a third synchronous belt and a sixth transmission wheel. The first guide rail and the second guide rail are both arranged on the connecting shell, and the two ends of the second lead screw are respectively rotatably connected to the first slider and the second slider through bearings, the first slider is slidably connected to the first guide rail, and the second slider is slidably connected to the second guide rail. The power output end of the third motor is coaxially connected to the fifth transmission wheel, the sixth transmission wheel is arranged on the connecting shell and can rotate relative to the connecting shell, the fifth transmission wheel and the sixth transmission wheel are connected through the third synchronous belt transmission, and the two ends of the third synchronous belt are connected to the first slider or the second slider.

[0014] Preferably, the walking mechanism includes two walking wheel structures and two walking drive structures, the two walking wheel structures are in an eight-shaped shape, and each of the walking drive structures includes a fourth motor, a first bevel gear, a second bevel gear and a plurality of transmission gears. The first bevel gear is located at the power output end of the fourth motor, the first bevel gear is meshed with the second bevel gear, the second bevel gear is connected to one of the transmission gears, adjacent transmission gears are meshed, and the walking wheel structure is connected to the transmission gear.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The lever of the present invention can swing, move forward and backward to achieve a high degree of freedom. The lever can avoid the support plate, so that the thumbwheel can move the rotor blades, and can be used to assist in the inspection of the rotor blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is an axonometric view of the rotor blade auxiliary inspection device of the present invention;

[0019] Figure 2 It is an external axonometric view of the walking mechanism of the present invention;

[0020] Figure 3 It is a side view of the walking mechanism of the present invention;

[0021] Figure 4 It is an internal axonometric view of the walking mechanism of the present invention;

[0022] Figure 5 Axonometric measurement of the toggle mechanism of the present invention Figure 1 ;

[0023] Figure 6 Axonometric measurement of the toggle mechanism of the present invention Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the first rotation driving structure of the present invention driving the middle part of the lever to move to one side;

[0025] Figure 8 Schematic diagram of the first rotation driving structure of the present invention driving the middle part of the lever to move to the other side (with Figure 7 opposite direction of movement);

[0026] Fig. 9 This is a schematic diagram of the second rotation driving structure of the present invention driving the tail of the lever to move to one side;

[0027] Fig.10 Schematic diagram of the second rotation driving structure of the present invention driving the tail of the lever to move to the other side (similar to Fig. 9 opposite direction of movement);

[0028] Fig.11 This is a schematic diagram of the linear movement drive of the present invention driving the second lead screw away from the first lead screw;

[0029] Fig.12 This is a schematic diagram of the linear movement drive of the present invention driving the second lead screw to approach the first lead screw;

[0030] Fig.13 A schematic diagram of the rotor blade auxiliary inspection device of the present invention moving a rotor blade;

[0031] Fig.14 for Fig.13 A top view of

[0032] Fig.15 A schematic diagram of the position of the rotor blade auxiliary inspection device of the present invention pushing the rotor blade forward by one rotor blade;

[0033] Fig.16 for Fig.15 A top view of

[0034] Wherein: 1-connecting housing, 2-push wheel, 3-push rod, 4-first lead screw, 5-second lead screw, 6-first nut, 7-first rotating block, 8-second nut, 9-second rotating block, 10-fixed block, 11-first motor, 12-first synchronous belt, 13-second motor, 14-second synchronous belt, 15-third motor, 16-first guide rail, 17-second guide rail, 18-first slider, 19-second slider, 20-third synchronous belt, 21-fourth motor, 22-first bevel gear, 23-second bevel gear, 24-transmission gear, 25-moving wheel, 26-travel housing. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0036] The object of the present invention is to provide a rotor blade auxiliary inspection device to solve the problems existing in the above-mentioned prior art. The lever can swing, move forward and backward, and the lever can avoid the support plate so that the thumbwheel can move the rotor blade.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 16 As shown: This embodiment provides a rotor blade auxiliary inspection device, including a walking mechanism, a connecting shell 1 and a toggle mechanism. The connecting shell 1 is located at the front end of the walking mechanism and is hinged to the walking mechanism. The toggle mechanism is arranged on the connecting shell 1. The toggle mechanism includes a dial wheel 2, a lever 3 and a moving structure. The dial wheel 2 is used to toggle the rotor blades. The dial wheel 2 is located at one end of the lever 3. The moving structure is used to drive the lever 3 to swing, move forward and backward.

[0039] Specifically, in this embodiment, the moving structure includes a first lead screw 4, a second lead screw 5, a first rotation driving structure, a second rotation driving structure and a linear movement driving structure. The first lead screw 4 and the second lead screw 5 are arranged in parallel, the first lead screw 4 is located in front of the second lead screw 5, and a fixed block 10 is arranged at both ends of the first lead screw 4. The first lead screw 4 is rotatably connected to the fixed block 10 through a bearing, and the fixed block 10 is connected to the connecting shell 1. The lever 3 passes through the first mounting seat on the first lead screw 4, and the lever 3 slides relative to the first mounting seat. The lever 3 and the first lead screw 4 can rotate relative to each other. The first rotation driving structure can drive the first lead screw 4 to rotate, and the first mounting seat can move along the length direction of the first lead screw 4. The other end of the lever 3 is arranged on the second mounting seat on the second lead screw 5, and the lever 3 and the second lead screw 5 can rotate relative to each other. The second rotation driving structure can drive the second lead screw 5 to rotate, and the second mounting seat can move along the length direction of the second lead screw 5. The linear movement driving structure can drive the second lead screw 5 to approach or move away from the first lead screw 4.

[0040] In this embodiment, the first mounting seat includes a first nut 6 and a first rotating block 7, the first nut 6 is sleeved on the first screw 4 and threadedly connected to the first screw 4, the first rotating block 7 is rotationally connected to the first nut 6, and the shift rod 3 is slidingly connected to the first rotating block 7; the second mounting seat includes a second nut 8 and a second rotating block 9, the second nut 8 is sleeved on the second screw 5 and threadedly connected to the second screw 5, the second rotating block 9 is rotationally connected to the second nut 8, and the other end of the shift rod 3 is connected to the second rotating block 9.

[0041] In this embodiment, the first rotation driving structure includes a first motor 11, a first transmission wheel, a first synchronous belt 12 and a second transmission wheel. The first motor 11 is installed on the connecting housing 1. The power output end of the first motor 11 is coaxially connected to the first transmission wheel, the second transmission wheel is coaxially connected to the first lead screw 4, and the first transmission wheel and the second transmission wheel are connected by the first synchronous belt 12. The power output end of the first motor 11 drives the first transmission wheel to rotate, and drives the second transmission wheel and the first lead screw 4 to rotate through the first synchronous belt 12, thereby driving the first mounting seat to move along the length direction of the first lead screw 4.

[0042] In this embodiment, the second rotation driving structure includes a second motor 13, a third transmission wheel, a second synchronous belt 14 and a fourth transmission wheel, the power output end of the second motor 13 is coaxially connected to the third transmission wheel, the fourth transmission wheel is coaxially connected to the second lead screw 5, and the third transmission wheel and the fourth transmission wheel are connected by a second synchronous belt 14. The power output end of the second motor 13 drives the third transmission wheel to rotate, drives the fourth transmission wheel and the second lead screw 5 to rotate through the second synchronous belt 14, and then drives the second mounting seat to move along the length direction of the second lead screw 5.

[0043] In this embodiment, the linear motion driving structure includes a third motor 15, a first guide rail 16, a second guide rail 17, a first slider 18, a second slider 19, a fifth transmission wheel, a third synchronous belt 20 and a sixth transmission wheel. The third motor 15, the first guide rail 16 and the second guide rail 17 are all arranged on the connecting shell 1, and the two ends of the second lead screw 5 are respectively rotatably connected with the first slider 18 and the second slider 19 through bearings. The second motor 13 is installed on the first slider 18 or the second slider 19, the first guide rail 16 and the second guide rail 17 are arranged in parallel, the first guide rail 16 and the first lead screw 4 are arranged vertically, the first slider 18 is slidably connected with the first guide rail 16, and the second slider 19 is slidably connected with the second guide rail 17. The power output end of the third motor 15 is coaxially connected with the fifth transmission wheel, the sixth transmission wheel is arranged on the connecting shell 1 and can rotate relative to the connecting shell 1, the fifth transmission wheel and the sixth transmission wheel are transmission-connected by the third synchronous belt 20, and the two ends of the third synchronous belt 20 are connected with the first slider 18 or the second slider 19. The power output end of the third motor 15 drives the fifth transmission wheel to rotate, and drives the sixth transmission wheel to rotate through the third synchronous belt 20, while driving the first slider 18 to slide along the first guide rail 16 and the second slider 19 along the second guide rail 17, so as to realize the second screw 5 approaching or moving away from the first screw 4.

[0044] In this embodiment, the walking mechanism includes a walking housing 26, two walking wheel structures and two walking drive structures. The front end of the walking housing 26 is hinged to the rear end of the connecting housing 1. The bottom of the connecting housing 1 is provided with a moving wheel 25 rotatably connected to the connecting housing 1. Each walking wheel structure includes a plurality of walking wheels arranged in sequence. The two walking wheel structures are arranged in an eight-shaped shape on both sides of the walking housing 26 to better adapt to the cambered surface. Each walking drive structure is located in the walking housing 26. Each walking drive structure drives a walking wheel structure to move respectively. Each walking drive structure includes a fourth motor 21, a first bevel gear 22, and a second bevel gear 2 3 and a plurality of transmission gears 24, the first bevel gear 22 is located at the power output end of the fourth motor 21, the first bevel gear 22 is meshed with the second bevel gear 23, the second bevel gear 23 and each transmission gear 24 are rotatably connected with the travel housing 26, the second bevel gear 23 is coaxially arranged with a transmission gear 24 and connected through a transmission shaft, adjacent transmission gears 24 are meshed, the travel wheel is coaxially arranged and connected with the transmission gear 24, the fourth motor 21 drives the first bevel gear 22 to rotate, and then drives the second bevel gear 23 and the travel wheel coaxially arranged with the second bevel gear 23 to rotate, and each travel wheel rotates, that is, the rotation of the travel wheel is realized.

[0045] The present embodiment utilizes the first lead screw 4, the second lead screw 5, the first guide rail 16 and the second guide rail 17; the first mounting seat drives the lever 3 to move along the length direction of the first lead screw 4, the second mounting seat drives the lever 3 to move along the length direction of the second lead screw 5, the first mounting seat drives the lever 3 to move along the length direction of the first guide rail 16 or the second guide rail 17, the lever 3 and the first lead screw 4 rotate relative to each other, and the lever 3 and the second lead screw 5 rotate relative to each other. With the coordination of various movements, the lever 3 is extended, retracted and rotated. The lever 3 is moved along any trajectory within the reachable range, and different support plates of different models can be avoided, so that the dial wheel 2 can move different rotor blades of different models.

[0046] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A rotor blade auxiliary inspection device, characterized in that: It includes a walking mechanism, a connecting shell and a toggle mechanism. The connecting shell is located at the front end of the walking mechanism and is hinged to the walking mechanism. The toggle mechanism is arranged on the connecting shell. The toggle mechanism includes a dial wheel, a dial rod and a moving structure. The dial wheel is used to toggle the rotor blades. The dial wheel is located at one end of the dial rod. The moving structure is used to drive the dial rod to swing, move forward and move backward.

2. The rotor blade auxiliary inspection device according to claim 1, characterized in that: The moving structure includes a first screw, a second screw, a first rotation drive structure, a second rotation drive structure and a linear movement drive structure, the first screw and the second screw are arranged in parallel, the first screw is located in front of the second screw, the shift rod passes through a first mounting seat on the first screw, the shift rod slides relatively to the first mounting seat, the shift rod and the first screw can rotate relatively, the first rotation drive structure can drive the first screw to rotate, the first mounting seat can move along the length direction of the first screw, the other end of the shift rod is arranged on the second mounting seat on the second screw, the shift rod and the second screw can rotate relatively, the second rotation drive structure can drive the second screw to rotate, the second mounting seat can move along the length direction of the second screw, and the linear movement drive structure can drive the second screw to approach or move away from the first screw.

3. The rotor blade auxiliary inspection device according to claim 2, characterized in that: The first mounting seat includes a first nut and a first rotating block, the first nut is sleeved on the first lead screw and threadedly connected to the first lead screw, the first rotating block is rotatably connected to the first nut, and the shift rod is slidably connected to the first rotating block; the second mounting seat includes a second nut and a second rotating block, the second nut is sleeved on the second lead screw and threadedly connected to the second lead screw, the second rotating block is rotatably connected to the second nut, and the other end of the shift rod is connected to the second rotating block.

4. The rotor blade auxiliary inspection device according to claim 2, characterized in that: A fixing block is disposed at both ends of the first lead screw. The first lead screw is rotatably connected to the fixing block via a bearing, and the fixing block is connected to the connecting shell.

5. The rotor blade auxiliary inspection device according to claim 2, characterized in that: The first rotation driving structure includes a first motor, a first transmission wheel, a first synchronous belt and a second transmission wheel. The power output end of the first motor is coaxially connected to the first transmission wheel, the second transmission wheel is coaxially connected to the first screw, and the first transmission wheel and the second transmission wheel are connected through the first synchronous belt transmission.

6. The rotor blade auxiliary inspection device according to claim 2, characterized in that: The second rotation driving structure includes a second motor, a third transmission wheel, a second synchronous belt and a fourth transmission wheel. The power output end of the second motor is coaxially connected to the third transmission wheel, the fourth transmission wheel is coaxially connected to the second screw, and the third transmission wheel and the fourth transmission wheel are connected through the second synchronous belt transmission.

7. The rotor blade auxiliary inspection device according to claim 2, characterized in that: The linear motion driving structure includes a third motor, a first guide rail, a second guide rail, a first slider, a second slider, a fifth transmission wheel, a third synchronous belt and a sixth transmission wheel. The first guide rail and the second guide rail are both arranged on the connecting shell. The two ends of the second lead screw are respectively rotatably connected with the first slider and the second slider through bearings. The first slider is slidably connected with the first guide rail, and the second slider is slidably connected with the second guide rail. The power output end of the third motor is coaxially connected with the fifth transmission wheel. The sixth transmission wheel is arranged on the connecting shell and can rotate relative to the connecting shell. The fifth transmission wheel is connected to the sixth transmission wheel through the third synchronous belt transmission. The two ends of the third synchronous belt are connected with the first slider or the second slider.

8. The rotor blade auxiliary inspection device according to claim 1, characterized in that: The walking mechanism includes two walking wheel structures and two walking drive structures. The two walking wheel structures are in an eight-shaped shape. Each of the walking drive structures includes a fourth motor, a first bevel gear, a second bevel gear and a plurality of transmission gears. The first bevel gear is located at the power output end of the fourth motor. The first bevel gear is meshed with the second bevel gear. The second bevel gear is connected to one of the transmission gears. Adjacent transmission gears are meshed, and the walking wheel structure is connected to the transmission gear.

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