Rotating mechanism for installation and maintenance of aero-engine

Abstract

The invention relates to the technical field of aviation, in particular to a rotating mechanism for mounting and maintaining an aero-engine, which comprises a bottom plate, an engine body, a first circular ring and a second circular ring, and the second circular ring is positioned in the first circular ring and can rotate around the axis of the first circular ring relative to the first circular ring. According to the scheme, two clamping frames are arranged, when an engine body is fixed, the two clamping frames move oppositely through the driving effect of a clamping motor, and in the moving process of the clamping frames, after triggering rods make contact with the engine body firstly, pushing blocks can move towards the upper end or the lower end of the engine body, so that the engine body is fixed; and then the multiple clamping rods can make contact with the side wall of the engine body, and under the limitation of the limiting blocks, the clamping rods cannot move due to the gravity of the engine body, so that the effect of clamping engines with different lengths is achieved, and the adaptability is wider.

Description

Technical Field

[0001] The invention relates to the field of aviation technology, and in particular to a rotating mechanism for installing and maintaining an aviation engine. Background Art

[0002] Aircraft engines are the power source for aircraft flight, and their performance directly affects key parameters such as aircraft speed, altitude, and range.

[0003] During the installation and maintenance of aircraft engines, they need to be fixed, and different sizes of engines require different fixing devices. When installing and maintaining different engines, multiple corresponding fixing devices are required, which wastes time in actual use.

[0004] Furthermore, in the process of engine maintenance, the usual fixing devices are fixed, and the repair personnel can only repair around the engine. However, when encountering some blind spots, it is inconvenient for the repair personnel to actually operate. Therefore, a rotating mechanism for aircraft engine installation and maintenance is proposed. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a rotating mechanism for installing and maintaining an aircraft engine to solve the problems raised in the above background technology.

[0006] A rotating mechanism for installing and maintaining an aircraft engine comprises a base plate, an engine body, a first circular ring and a second circular ring, wherein the second circular ring is located inside the first circular ring and can rotate relative to the first circular ring around its axis; The bottom plate is provided with a moving mechanism, and the moving mechanism is used to drive the first ring and the second ring as a whole to move in the front-to-back direction or in the up-and-down direction; The moving mechanism includes a moving shaft and a lifting shaft, the lifting shaft is threadedly connected with a first lifting block, the first lifting block and the first ring can slide relative to each other, the second ring is provided with a clamping mechanism, the clamping mechanism is used to clamp the engine body, the clamping mechanism includes two clamping frames arranged in the second ring, and the two clamping frames are respectively located on opposite sides of the engine body.

[0007] Preferably, the moving mechanism further comprises a first motor fixedly connected to the bottom plate, the output end of the first motor is connected to the moving shaft, and the moving shaft is threadedly connected with a first moving block; The bottom plate is also provided with a sliding shaft, the setting direction of the sliding shaft is consistent with the setting direction of the moving shaft, and the sliding shaft is provided with a second moving block corresponding to the first moving block. The cooperation between the second moving block and the sliding shaft can drive the first ring to move forward and backward when the moving shaft rotates.

[0008] Preferably, a second motor is provided at the bottom of the first moving block, and a lifting shaft is fixedly connected to the output end of the second motor, and the lifting shaft is threadedly connected to the first lifting block; The second moving block is provided with a guide shaft, and the guide shaft is slidably connected with a second connecting block. The second connecting block and the first ring can slide relatively. The cooperation of the guide shaft and the second connecting block can drive the first ring to move up and down when the lifting shaft rotates.

[0009] Preferably, the first lifting block is provided with a third motor, the output end of the third motor is fixedly connected to a driving gear, the outer side wall of the first ring is provided with a driving gear ring, and the driving gear and the driving gear ring are meshed with each other; The second ring is fixedly connected with rotating shafts at two opposite ends of the same diameter, one of which extends to the outside of the first ring. A fourth motor is provided on the side wall of the first ring, a first gear is provided at the output end of the fourth motor, and a second gear is provided on the outer wall of the rotating shaft extending to the outside of the first ring. The first gear is meshed with the second gear, and the fourth motor can control the second ring to rotate.

[0010] Preferably, a fifth motor is fixedly connected to the second ring, an output end of the fifth motor is connected to a rotating shaft, the clamping mechanism is arranged on the rotating shaft, and the fifth motor drives the clamping mechanism to rotate via the rotating shaft; A rotating block is fixedly connected to the rotating shaft, and the clamping frame is arranged on the rotating block.

[0011] Preferably, a clamping motor is fixedly connected to the rotating block, a clamping shaft is fixedly connected to the output end of the clamping motor, two clamping frames are threadedly connected to the clamping shaft, the clamping frames are slidably connected to the rotating block, and the two clamping frames can move in relative or opposite directions when the clamping shaft rotates.

[0012] Preferably, a clamping group is provided at both opposite ends of the clamping frame, and the clamping group includes a pushing block slidably connected to the clamping frame, a lower sliding frame is provided on the pushing block, a clamping rod is slidably connected in the lower sliding frame, and a clamping spring is provided between the clamping rod and the lower sliding frame; The push block is also provided with a limit block, a fixing spring is provided between the limit block and the push block, and the clamping frame is also fixedly connected with a limit plate. In the initial state, the clamping rod will not move toward the direction of the engine body under the limiting effect of the limit plate; The limit block is arranged in a right-angle trapezoidal shape, and a plurality of fixing grooves for limiting are provided on the surface of the clamping rod opposite to the limit block. The shape of the fixing groove corresponds to the limit block. When the clamping rod moves toward the engine body, the limit block does not limit the clamping rod.

[0013] Preferably, the clamping group further comprises a trigger rod slidably connected to the clamping frame, one end of the trigger rod is located at the inner side of the two clamping frames, and the trigger rod will first contact the engine body during the process of clamping the engine body.

[0014] Preferably, the clamping frame is rotatably connected with a transmission gear, the trigger rod and the pushing block are respectively provided with a first rack and a second rack, and the first rack and the second rack are both meshingly connected with the transmission gear.

[0015] The beneficial effects of the present invention are: 1. This scheme sets up two clamping frames. When the engine body is fixed, the two clamping frames are moved relative to each other through the driving action of the clamping motor. In the process of the movement of the clamping frames, the trigger rod first contacts the engine body, which will cause the push block to move to the upper end or lower end of the engine body. Then, multiple clamping rods will contact the side wall of the engine body. Under the restriction of the limit block, the clamping rod will not move due to the gravity of the engine body, thereby completing the clamping effect of engines of different lengths.

[0016] 2. This solution can drive the fixed engine body to move forward and backward through the movable axis, and can drive the engine body to move up and down through the lifting axis. The rotating axis and the rotation axis can make the engine body rotate horizontally or vertically, thereby adjusting the angle of the engine body, making it convenient for operators to maintain and repair it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 For the present invention Figure 1 A magnified image of point A; Figure 3 is a schematic diagram of the position of the second motor in the present invention; Figure 4 It is a schematic diagram of the position of the rotating block in the present invention; Figure 5 It is a schematic diagram of the positions of two clamping frames in the present invention; Figure 6 For the present invention Figure 5 The enlarged view of point B; Figure 7 It is a schematic diagram of the positions of the trigger rod and the push block in the present invention.

[0018] In the figure: 1. Bottom plate; 2. First circular ring; 3. Second circular ring; 4. Second connecting block; 5. Moving shaft; 6. First moving block; 7. Sliding shaft; 8. First motor; 9. Second motor; 10. Lifting shaft; 11. Guide shaft; 12. First lifting block; 13. Engine body; 14. Driving gear; 15. Driving gear ring; 16. Fourth motor; 17. First gear; 18. Rotating shaft; 19. Second gear; 20. Clamping motor; 21. Clamping shaft; 22. Rotating block; 23. Clamping frame; 24. Pushing block; 25. Lower sliding frame; 26. Clamping rod; 27. Fixed groove; 28. Limiting block; 29. ​​Fixed spring; 30. Clamping spring; 31. Limiting plate; 32. Second rack; 33. Transmission gear; 34. Trigger rod. DETAILED DESCRIPTION

[0019] The following will refer to the attached Figures 1 to 7 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0020] Example 1 As attached Figure 1 -Attached Figure 7 A rotating mechanism for installing and maintaining an aircraft engine comprises a base plate 1, an engine body 13, a first ring 2 and a second ring 3, wherein the second ring 3 is located inside the first ring 2 and can rotate relative to the first ring 2 around its axis. Figure 1 The second ring 3 is located on the inner side of the first ring 2 , and the second ring 3 can rotate relative to the first ring 2 .

[0021] The bottom plate 1 is provided with a moving mechanism, which is used to drive the first ring 2 and the second ring 3 to move in a front-to-back direction or in an up-and-down direction as a whole; The specific way of driving the first ring 2 and the second ring 3 to move is as follows: the moving mechanism includes a moving shaft 5 and a lifting shaft 10 , the lifting shaft 10 is threadedly connected with a first lifting block 12 , and the first lifting block 12 and the first ring 2 can slide relative to each other.

[0022] The moving mechanism further comprises a first motor 8 fixedly connected to the base plate 1, the output end of the first motor 8 is connected to the moving shaft 5, and the moving shaft 5 is threadedly connected with a first moving block 6; The bottom plate 1 is also provided with a sliding shaft 7, the setting direction of the sliding shaft 7 is consistent with the setting direction of the moving shaft 5, and the sliding shaft 7 is provided with a second moving block corresponding to the first moving block 6. The cooperation between the second moving block and the sliding shaft 7 can drive the first ring 2 to move forward and backward when the moving shaft 5 rotates. By limiting the first ring 2 in the front-to-back direction by the sliding shaft 7, the first moving block 6 can move forward and backward in the direction of the moving shaft 5 when the moving shaft 5 rotates.

[0023] A second motor 9 is provided at the bottom of the first moving block 6, and a lifting shaft 10 is fixedly connected to the output end of the second motor 9, and the lifting shaft 10 is threadedly connected to the first lifting block 12; The second moving block is provided with a guide shaft 11, and the second connecting block 4 is slidably connected to the guide shaft 11. The second connecting block 4 and the first ring 2 can slide relatively. The cooperation of the guide shaft 11 and the second connecting block 4 can drive the first ring 2 to move up and down when the lifting shaft 10 rotates. By limiting the first ring 2 in the up and down directions by the guide shaft 11, the first ring 2 can be driven to move in the up and down directions when the second motor 9 drives the lifting shaft 10 to rotate.

[0024] When the operator actually repairs the engine body 13 (the engine body 13 has been fixed at this time), the operator can control the first motor 8 and the second motor 9 respectively, so that the first ring 2 can move forward and backward or up and down on the base plate 1, thereby adapting to various situations during the maintenance and repair process.

[0025] Example 2 The benefit achieved by this embodiment is that the engine body 13 can rotate along with the first ring 2 or the rotating shaft 18, so as to adjust the fixed engine body 13 at multiple angles, thereby reducing the number of maintenance blind spots during the maintenance of the engine body 13.

[0026] The first lifting block 12 is provided with a third motor, the output end of the third motor is fixedly connected to a driving gear 14, and the outer wall of the first ring 2 is provided with a driving gear ring 15, and the driving gear 14 and the driving gear ring 15 are meshed with each other. When the engine body 13 needs to be flipped in the lateral direction, the third motor can be controlled to drive the driving gear 14 to rotate, and the driving gear 14 will drive the first ring 2 to rotate through the driving gear ring 15, thereby causing the first ring 2 to rotate. Conversely, the first ring 2 can slide relative to the first lifting block 12 and the second connecting block 4.

[0027] The second ring 3 is fixedly connected with rotating shafts 18 at two opposite ends of the same diameter, and one of the rotating shafts 18 extends to the outside of the first ring 2. A fourth motor 16 is provided on the side wall of the first ring 2, and a first gear 17 is provided at the output end of the fourth motor 16. A second gear 19 is provided on the outer wall of the rotating shaft 18 extending to the outside of the first ring 2. The first gear 17 is meshed with the second gear 19, and the fourth motor 16 can control the second ring 3 to rotate. This step is a step for controlling the rotation of the second ring 3. The specific method is: by controlling the fourth motor 16, the first gear 17 can be driven to rotate, and the rotating shaft 18 can be driven to rotate by the action of the second gear 19. Refer to the attached Figure 2 -Attached Figure 3 When the rotating shaft 18 rotates, the second ring 3 is driven to rotate.

[0028] The second ring 3 is fixedly connected to a fifth motor, the output end of the fifth motor is connected to a rotating shaft, the clamping mechanism is arranged on the rotating shaft, and the fifth motor drives the clamping mechanism to rotate through the rotating shaft. The rotating shaft is fixedly connected to a rotating block 22, and the clamping frame 23 is arranged on the rotating block 22.

[0029] Example 3 This embodiment realizes the process of two clamping frames 23 clamping the engine body 13 .

[0030] The rotating block 22 is fixedly connected with a clamping motor 20, and the output end of the clamping motor 20 is fixedly connected with a clamping shaft 21. Two clamping frames 23 are threadedly connected to the clamping shaft 21. The clamping frames 23 are slidably connected to the rotating block 22. The two clamping frames 23 can move in opposite directions when the clamping shaft 21 rotates. Figure 5 When the clamping shaft 21 rotates, it drives the two clamping frames 23 to move. When the engine body 13 needs to be clamped, the two clamping frames 23 will move relative to each other under the action of the same clamping shaft 21, thereby clamping the opposite sides of the long side of the engine body 13. The process of relative movement of the two clamping shafts 21 is a conventional method and will not be described in detail.

[0031] The second ring 3 is provided with a clamping mechanism, which is used to clamp the engine body 13. The clamping mechanism includes two clamping frames 23 arranged in the second ring 3, and the two clamping frames 23 are respectively located on opposite sides of the engine body 13. When the two clamping frames 23 move toward the engine body 13, the two sides of the long side of the engine body 13 are clamped.

[0032] The clamping frame 23 is provided with a clamping group at both opposite ends thereof, and the clamping group includes a pushing block 24 slidably connected to the clamping frame 23, a lower slide frame 25 is provided on the pushing block 24, a clamping rod 26 is slidably connected in the lower slide frame 25, and a clamping spring 30 is provided between the clamping rod 26 and the lower slide frame 25; The push block 24 is also provided with a limit block 28, and a fixing spring 29 is provided between the limit block 28 and the push block 24. The clamping frame 23 is also fixedly connected with a limit plate 31. In the initial state, the clamping rod 26 will not move toward the engine body 13 under the limiting action of the limit plate 31. Only when the clamping rod 26 is separated from the limit plate 31, the clamping rod 26 will move toward the engine body 13 under the action of the clamping spring 30. It should be noted that the fixing spring 29 only plays the role of pushing the limit block 28 to move toward the clamping rod 26, and its elastic coefficient is smaller than the elastic coefficient of the clamping spring 30, and will not affect the normal downward movement of the clamping rod 26.

[0033] The limit block 28 is arranged in a right-angled trapezoidal shape, and a plurality of fixing grooves 27 for limiting are provided on the surface of the clamping rod 26 opposite to the limit block 28. The shape of the fixing grooves 27 corresponds to the limit block 28. When the clamping rod 26 moves toward the direction of the engine body 13, the limit block 28 does not limit the clamping rod 26.

[0034] The clamping group further includes a trigger rod 34 slidably connected to the clamping frame 23, one end of the trigger rod 34 is located inside the two clamping frames 23, and the trigger rod 34 will first contact the engine body 13 during the clamping process of the engine body 13. The clamping frame 23 is rotatably connected to a transmission gear 33, and the trigger rod 34 and the push block 24 are respectively provided with a first rack and a second rack 32, and the first rack and the second rack 32 are meshedly connected with the transmission gear 33.

[0035] In the process of the clamping frame 23 approaching the engine body 13, the trigger rod 34 will first contact the side wall of the engine body 13, but the trigger rod 34 does not play a clamping role. The trigger rod 34 will move relative to the clamping frame 23 to the side opposite to the two clamping frames 23 under the reaction force after contacting the engine body 13, and then in the process of the trigger rod 34 moving, the transmission gear 33 will rotate. In turn, the push block 24 can move relative to the clamping frame 23 to the upper end or lower end of the engine body 13. In the process of the movement of the push block 24, its bottom is always rubbing against the bottom of the limit plate 31. When the clamping rod 26 moves to the position of being separated from the limit plate 31, the clamping frame 23 at this time abuts against the side wall of the engine body 13 to achieve the clamping effect. Synchronously, the clamping rod 26 will also move downward under the action of the clamping spring 30, and the bottom of the clamping rod 26 will abut against the side wall of the shorter side of the engine body 13.

[0036] Thus, the short side of the engine body 13 is clamped by a plurality of clamping rods 26, and the long side of the engine body 13 is clamped by the clamping frame 23, thereby clamping engines of different lengths. It should be noted that the distance between the two trigger rods 34 on the same clamping frame 23 is smaller than the long side length of the engine body 13, and when the engine body 13 is clamped, the two trigger rods 34 can both abut against the side wall of the engine body 13. The distance between the two push blocks 24 is greater than the long side length of the engine body 13, and they are located above and below the engine body 13 respectively.

[0037] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A rotating mechanism for aircraft engine installation and maintenance, characterized in that: It comprises a base plate (1), an engine body (13), a first circular ring (2) and a second circular ring (3), wherein the second circular ring (3) is located inside the first circular ring (2) and is capable of rotating relative to the first circular ring (2) around its axis; The bottom plate (1) is provided with a moving mechanism, and the moving mechanism is used to drive the first ring (2) and the second ring (3) as a whole to move in a front-to-back direction or in an up-and-down direction; The moving mechanism comprises a moving shaft (5) and a lifting shaft (10); a first lifting block (12) is connected to the lifting shaft (10); the first lifting block (12) and the first circular ring (2) are capable of sliding relative to each other; a clamping mechanism is provided on the second circular ring (3); the clamping mechanism is used to clamp the engine body (13); the clamping mechanism comprises two clamping frames (23) arranged in the second circular ring (3); the two clamping frames (23) are respectively located on opposite sides of the engine body (13); The moving mechanism further comprises a first motor (8) fixedly connected to the base plate (1), the output end of the first motor (8) being connected to the moving shaft (5), and a first moving block (6) being threadedly connected to the moving shaft (5); A second motor (9) is provided at the bottom of the first moving block (6); an output end of the second motor (9) is fixedly connected to the lifting shaft (10); and the lifting shaft (10) is threadedly connected to the first lifting block (12).

2. The rotating mechanism for aircraft engine installation and maintenance according to claim 1, characterized in that: The bottom plate (1) is also provided with a sliding shaft (7), the setting direction of the sliding shaft (7) is consistent with the setting direction of the moving shaft (5), and the sliding shaft (7) is provided with a second moving block corresponding to the first moving block (6). The cooperation between the second moving block and the sliding shaft (7) can drive the first ring (2) to move forward and backward when the moving shaft (5) rotates.

3. The rotating mechanism for aircraft engine installation and maintenance according to claim 2, characterized in that: The second moving block is provided with a guide shaft (11), and a second connecting block (4) is slidably connected to the guide shaft (11). The second connecting block (4) and the first circular ring (2) can slide relative to each other. The cooperation between the guide shaft (11) and the second connecting block (4) can drive the first circular ring (2) to move up and down when the lifting shaft (10) rotates.

4. The rotating mechanism for aircraft engine installation and maintenance according to claim 1, characterized in that: The first lifting block (12) is provided with a third motor, the output end of the third motor is fixedly connected to a driving gear (14), the outer wall of the first circular ring (2) is provided with a driving gear ring (15), and the driving gear (14) and the driving gear ring (15) are meshed with each other; The second circular ring (3) is fixedly connected to rotating shafts (18) at two opposite ends of the same diameter, one of the rotating shafts (18) extending to the outside of the first circular ring (2), a fourth motor (16) is provided on the side wall of the first circular ring (2), a first gear (17) is provided at the output end of the fourth motor (16), a second gear (19) is provided on the outer side wall of the rotating shaft (18) extending to the outside of the first circular ring (2), the first gear (17) and the second gear (19) are meshingly connected, and the fourth motor (16) can control the second circular ring (3) to rotate.

5. The rotating mechanism for aircraft engine installation and maintenance according to claim 1, characterized in that: The second ring (3) is fixedly connected to a fifth motor, the output end of the fifth motor is connected to a rotating shaft, the clamping mechanism is arranged on the rotating shaft, and the fifth motor drives the clamping mechanism to rotate via the rotating shaft; A rotating block (22) is fixedly connected to the rotating shaft, and a clamping frame (23) is arranged on the rotating block (22).

6. The rotating mechanism for aircraft engine installation and maintenance according to claim 5, characterized in that: A clamping motor (20) is fixedly connected to the rotating block (22); an output end of the clamping motor (20) is fixedly connected to a clamping shaft (21); two clamping frames (23) are threadedly connected to the clamping shaft (21); the clamping frames (23) are slidably connected to the rotating block (22); and the two clamping frames (23) can move in relative or opposite directions when the clamping shaft (21) rotates.

7. The rotating mechanism for aircraft engine installation and maintenance according to claim 1, characterized in that: The clamping frame (23) is provided with a clamping group at both opposite ends, and the clamping group includes a pushing block (24) slidably connected to the clamping frame (23), a lower sliding frame (25) is provided on the pushing block (24), a clamping rod (26) is slidably connected in the lower sliding frame (25), and a clamping spring (30) is provided between the clamping rod (26) and the lower sliding frame (25); The pushing block (24) is also provided with a limit block (28), a fixing spring (29) is provided between the limit block (28) and the pushing block (24), and the clamping frame (23) is also fixedly connected with a limit plate (31), and in an initial state, the clamping rod (26) will not move in the direction of the engine body (13) under the limiting action of the limit plate (31); The limit block (28) is arranged in a right-angled trapezoidal shape. A plurality of fixing grooves (27) for limiting are provided on a surface of the clamping rod (26) opposite to the limit block (28). The shape of the fixing grooves (27) corresponds to that of the limit block (28). When the clamping rod (26) moves in the direction of the engine body (13), the limit block (28) does not limit the clamping rod (26).

8. The rotating mechanism for aircraft engine installation and maintenance according to claim 7, characterized in that: The clamping group further comprises a trigger rod (34) slidably connected to the clamping frame (23), one end of the trigger rod (34) being located inside the two clamping frames (23), and during the process of clamping the engine body (13), the trigger rod (34) will first contact the engine body (13).

9. The rotating mechanism for aircraft engine installation and maintenance according to claim 1, characterized in that: The clamping frame (23) is rotatably connected to a transmission gear (33), and the trigger rod (34) and the push block (24) are respectively provided with a first rack and a second rack (32), and the first rack and the second rack (32) are both meshingly connected to the transmission gear (33).

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