Aircraft engine mounting platform

Abstract

An aircraft engine installation platform comprises a walking chassis, a lifting mechanism, a posture adjusting platform, a front bracket and a rear bracket, the lifting mechanism is installed on the walking chassis, the posture adjusting platform is installed on the lifting mechanism in a front-back guiding sliding mode, and the front bracket is installed on the front side of the posture adjusting platform in a left-right guiding sliding mode. A supporting base is installed on the rear side of the posture adjusting platform in a left-right guiding sliding mode, a lifting device is installed on the supporting base, and the rear bracket is rotatably installed on the lifting device. By means of the structure, position adjustment can be conveniently conducted when the aircraft engine is installed.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft installation and maintenance equipment, in particular to an aircraft engine installation platform. Background Art

[0002] Aircraft engine maintenance involves disassembling the engine for repair and then reinstalling it. During disassembly and assembly, the stability of the engine and the alignment of the mounting holes must be ensured. Misalignment can damage the mounting holes during installation, causing significant damage to the aircraft. Therefore, disassembly and assembly of aircraft engines, especially during reinstallation, require high alignment of the mounting holes. To flexibly adjust the reinstallation posture of the engine, an engine mounting platform is required.

[0003] In the prior art, CN217833496U discloses an assembly device for engine assembly, comprising a vehicle frame and an AGV steering wheel, the AGV steering wheel being disposed at the bottom of the vehicle frame. The upper end surface of the vehicle frame is connected to a first mounting frame via a lifting mechanism, the first mounting frame being provided with a pitching mechanism, the first mounting frame being connected to a second mounting frame via the pitching mechanism, the second mounting frame being provided with first rails on both front and rear sides, the first slide being slidably connected to the first slide, the upper end surface of the second mounting frame being slidably connected to a third mounting frame via the first rails and the first slide, the left and right sides of the third mounting frame being provided with second rails, the second slide being slidably connected to the second slide, the upper end surface of the third mounting frame being slidably connected to a fourth mounting frame via the second rails and the second slide, the upper end of the fourth mounting frame being slidably connected to a yaw mechanism for placing the engine. The device is characterized by ease of installation, saving time and effort; however, its disadvantage is that the aircraft engine can only be lifted and yawed during installation, making it difficult to adjust the installation position in actual use.

[0004] In addition, CN116395595A discloses a multi-purpose engine mounting vehicle, which also has the problem of limited freedom and inconvenience in adjusting the mounting position during actual use. Utility Model Content

[0005] In order to solve the current technical problems, the main purpose of the utility model is to provide an aircraft engine mounting platform, which is convenient for position adjustment when the aircraft engine is installed.

[0006] The technical solution adopted by the utility model is: an aircraft engine mounting platform, comprising a walking chassis, a lifting mechanism, an attitude adjustment platform, a front bracket and a rear bracket, the lifting mechanism is installed on the walking chassis, the attitude adjustment platform is installed on the lifting mechanism for guiding sliding forward and backward, one end of the second push rod device is connected to the attitude adjustment platform, and the other end is connected to the lifting mechanism, the front bracket is installed for guiding sliding left and right on the front side of the attitude adjustment platform, one end of the third push rod device is connected to the attitude adjustment platform, and the other end is connected to the front bracket, and a support seat is installed for guiding sliding left and right on the rear side of the attitude adjustment platform, one end of the fourth push rod device is connected to the attitude adjustment platform, and the other end is connected to the support seat, the lifting device is installed on the support seat, and the rear bracket is rotatably installed on the lifting device; the left and right ends of the front bracket are respectively hingedly installed with a fifth push rod device for swinging back and forth through an axle seat, the telescopic end of the fifth push rod device extends upward, and is hingedly installed with a front connecting seat at the telescopic end, and the left and right ends of the rear bracket are respectively hingedly installed with a rear connecting seat for swinging back and forth.

[0007] The walking chassis includes a main frame, and follow-up steering wheels are respectively installed at the four corners of the main frame. Lifting steering wheels are respectively installed at the front and rear ends of the main frame and between the follow-up steering wheels on the left and right sides. The walking chassis is driven to move by the lifting steering wheels.

[0008] A fixed frame is installed at the front end of the main frame, a lifting seat is installed in the fixed frame for sliding up and down, the lifting steering wheel is installed on the lifting seat, and frame frames are installed on both sides of the fixed frame of the main frame. A first push rod device is installed on the top of the frame, and the first push rod device is connected to the lifting seat.

[0009] The fixed frame is in a circular shape, and longitudinal long holes are respectively provided on both sides of the fixed frame. The lifting seat is provided with ear shafts extending out of the long holes at the positions corresponding to the long holes, and the first push rod device is connected to the ear shafts; a swivel bracket is rotatably installed at the bottom of the fixed frame, the lower end of the lifting steering wheel passes through the swivel bracket, and the two follower steering wheels located on the front side of the main frame are respectively installed on the swivel bracket, and a towing seat and / or towing arm is installed at the front end of the swivel bracket.

[0010] The follower steering wheel includes a first mounting plate, a first wheel seat is rotatably mounted on the lower end of the first mounting plate, a follower wheel is mounted on the bottom of the first wheel seat, a first gear ring is mounted on the top of the first wheel seat, a first servo motor is mounted on the first mounting plate, an output shaft of the first servo motor passes downward through the first mounting plate, a first gear is mounted on the output shaft of the first servo motor, and the first gear is meshed with the first gear ring for transmission;

[0011] The elevator steering wheel includes a second mounting plate, a second wheel seat is rotatably mounted on the lower end of the second mounting plate, a driving wheel is mounted on the bottom of the second wheel seat, a second ring gear is mounted on the top of the second wheel seat, a second servo motor is mounted on the second mounting plate, an output shaft of the second servo motor passes downward through the second mounting plate, a second gear is mounted on the output shaft of the second servo motor, and the second gear is meshed with the second ring gear for transmission.

[0012] The lifting mechanism adopts a scissor-type lifting mechanism, which includes a scissor fork located on the left and right sides of the walking chassis respectively, the scissor fork includes a first fork arm and a second fork arm, the middle parts of the first fork arm and the second fork arm are hinged, the lower end of the first fork arm is hinged to the first hinge seat, the first hinge seat is fixedly connected to the walking chassis, the lower end of the second fork arm is hinged to the second hinge seat, the second hinge seat is installed on the walking chassis for guiding sliding forward and backward, the upper end of the first fork arm is hinged to the third hinge seat, the third hinge seat is installed on the posture adjustment platform for guiding sliding forward and backward, the upper end of the second fork arm is hinged to the fourth hinge seat, the fourth hinge seat is installed on the posture adjustment platform for guiding sliding forward and backward, a second push rod device is installed on the posture adjustment platform, the second push rod device is connected to the lifting mechanism, and the posture adjustment platform is pushed forward and backward to adjust its position by the second push rod device.

[0013] The top of the posture adjustment platform is equipped with slide rails at positions corresponding to the front bracket and the rear bracket respectively, and the bottom of the front bracket and the rear bracket are equipped with sliders respectively. The front bracket and the rear bracket are respectively installed on the corresponding slide rails through the sliders. A third push rod device is installed on the posture adjustment platform at the position of the front bracket, and a fourth push rod device is installed on the posture adjustment platform at the position of the rear bracket.

[0014] A guide cylinder is installed on the top of the fifth push rod device, and a lifting shaft is installed in the guide cylinder. The lower end of the lifting shaft is rotatably connected to the telescopic rod of the fifth push rod device, and the front connecting seat is hingedly installed on the upper end of the lifting shaft. The upper end of the lifting shaft is provided with an inclined surface, which limits the front connecting seat.

[0015] A first trough body is also installed at the bottom of the rear connecting seat, a roller is installed inside the first trough body, the first trough body is located in the second trough body, the roller abuts against the second trough body, a long hole is provided on the side wall of the second trough body, screws are respectively installed on both sides of the first trough body, the screws pass through the long holes on the side walls of the second trough body and are screwed with nuts, an extension seat is provided at the bottom of the second trough body, and the extension seat is hinged to the rear bracket.

[0016] The utility model has the following beneficial effects:

[0017] 1. The walking chassis of the present invention is used to carry and transport the lifting mechanism, attitude adjustment platform, front bracket, rear bracket, and aircraft engine. The lifting mechanism is used to adjust the height of the attitude adjustment platform, and the front bracket and rear bracket are used to mount and support the aircraft engine. The mounting platform is driven by the walking chassis when it moves. When the third and fourth push rods are synchronously extended and retracted, the left-right position of the aircraft engine is adjusted. When the third or fourth push rods are independently extended and retracted, the left-right swing position of the aircraft engine is adjusted. When the second push rods on both sides are synchronously extended and retracted, the fore-aft position of the aircraft engine is adjusted.

[0018] 2. When the two fifth push rods and the lifting device are raised and lowered synchronously, the installation height of the aircraft engine is adjusted; when the fifth push rods on both sides are raised and lowered separately, the angle of the aircraft engine is adjusted by turning left and right; when the fifth push rods are raised and lowered synchronously and the lifting device remains stationary; or when the fifth push rods on both sides remain stationary and the lifting device is raised and lowered; or when the fifth push rods on both sides and the lifting device operate in opposite directions, the front and rear pitch angles of the aircraft engine are adjusted.

[0019] 3. The utility model adopts three hydraulic cylinders to achieve fine-tuning of the platform up and down, two hydraulic cylinders to achieve fine-tuning in the horizontal direction, and two hydraulic cylinders to achieve fine-tuning in the front and back direction. By adjusting the lifting and lowering of the front and rear hydraulic cylinders separately, the roll and pitch adjustment of the platform is achieved, and a steering wheel is used to achieve 360° rotation. Through the above measures, multi-degree-of-freedom adjustment of the engine mounting vehicle is achieved, the accuracy of aircraft engine installation is improved, the alignment of the mounting holes is facilitated, and the installation efficiency is improved.

[0020] 4. The utility model provides two sets of elevating steering wheels at the front and rear positions of the middle axis of the walking chassis. These wheels are raised and lowered by hydraulic cylinders. The cylinder pressure is set to an appropriate value to ensure that the elevating steering wheels always maintain contact with the ground and have sufficient positive pressure to be converted into driving force, but without lifting the entire vehicle. Follow-up steering wheels are provided at the four corners of the main frame, which are linked with the elevating steering wheels to achieve maneuvers such as steering, lateral movement, and rotation in place. The walking chassis has two states: towing and self-propelled. When self-propelled, the elevating steering wheels are in contact with the ground through a first push rod device, and the follow-up steering wheels are linked with the elevating steering wheels to achieve maneuvers such as steering, lateral movement, and rotation in place. When towing, the towing seat or towing arm is connected to the towing vehicle, and the first push rod device is retracted to make the elevating steering wheels leave the ground. When towing, the slewing bracket rotates, and the two follow-up steering wheels on the front side rotate accordingly, thereby achieving steering. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model.

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a top perspective.

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from the bottom perspective.

[0025] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the front bracket of the utility model.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the rear bracket of the utility model.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the walking chassis of the utility model.

[0029] Figure 8 Based Figure 7 Enlarged structural diagram at point B in the middle.

[0030] Figure 9 It is a schematic diagram of the three-dimensional structure of the follow-up steering wheel of the utility model.

[0031] Figure 10 It is a schematic diagram of the three-dimensional structure of the lifting steering wheel of the utility model.

[0032] In the picture:

[0033] Walking chassis 100, main frame 101, fixed frame 102, frame 103, lifting seat 104, first push rod device 105, long hole 106, trunnion 107, follower steering wheel 110, first mounting plate 111, first wheel seat 112, follower wheel 113, first ring gear 114, first gear 115, first servo motor 116, lifting steering wheel 120, second mounting plate 121, second wheel seat 122, driving wheel 123, second ring gear 124, second gear 125, second servo motor 126, slewing bracket 130, towing seat 131;

[0034] Lifting mechanism 200, first fork arm 201, first hinge seat 2011, third hinge seat 2012, second fork arm 202, second hinge seat 2021, fourth hinge seat 2022, second push rod device 210;

[0035] Posture adjustment platform 300, slide rail 301, slider 302;

[0036] Front bracket 400, third push rod device 401, shaft seat 402, fifth push rod device 403, guide cylinder 404, lifting shaft 405, inclined surface 406, front connecting seat 410;

[0037] Rear bracket 500, support base 501, fourth push rod device 502, lifting device 503, rear connecting base 510, extension base 511, second slot body 512, first slot body 513, roller 514, screw 516;

[0038] Support legs 600 and trailing arms 700 . DETAILED DESCRIPTION

[0039] Example 1:

[0040] See also Figure 1-10 As shown, an aircraft engine mounting platform includes a walking chassis 100, a lifting mechanism 200, a posture adjustment platform 300, a front bracket 400 and a rear bracket 500, wherein the lifting mechanism 200 is mounted on the walking chassis 100, the posture adjustment platform 300 is mounted on the lifting mechanism 200 for front and rear sliding guidance, one end of the second push rod device 210 is connected to the posture adjustment platform 300, and the other end is connected to the lifting mechanism 200, the front bracket 400 is mounted on the front side of the posture adjustment platform 300 for left and right sliding guidance, one end of the third push rod device 401 is connected to the posture adjustment platform 300, and the other end is connected to the front bracket 400, A support seat 501 is installed on the left and right guiding sliding side of the rear side of the platform 300. One end of the fourth push rod device 502 is connected to the posture adjustment platform 300, and the other end is connected to the support seat 501. A lifting device 503 is installed on the support seat 501, and the rear bracket 500 is rotatably installed on the lifting device 503; the left and right ends of the front bracket 400 are respectively hingedly installed with the fifth push rod device 403 through the axle seat 402 to swing back and forth. The telescopic end of the fifth push rod device 403 extends upward and is hingedly installed with a front connecting seat 410 at the telescopic end. The left and right ends of the rear bracket 500 are respectively hingedly installed with the rear connecting seat 510 to swing back and forth.

[0041] The walking chassis 100 is used to carry the lifting mechanism 200, the attitude adjustment platform 300, the front bracket 400, the rear bracket 500 and the aircraft engine, and to transport the aircraft engine. The lifting mechanism 200 is used to adjust the height of the attitude adjustment platform 300, and the front bracket 400 and the rear bracket 500 are used to install and support the aircraft engine. When the installation platform moves, it is driven by the traveling chassis 100 or moved by dragging. When the two fifth push rod devices 403 and the lifting device 503 are raised and lowered synchronously, the installation height of the aircraft engine is adjusted. When the fifth push rod devices 403 on both sides are raised and lowered individually, the angle of the aircraft engine is adjusted by left and right tilting. When the third push rod device 401 and the fourth push rod device 502 are extended and retracted synchronously, the left and right position of the aircraft engine is adjusted. When the third push rod device 401 or the fourth push rod device 502 is extended and retracted individually, the left and right swing position of the aircraft engine is adjusted. When the second push rod devices 210 on both sides are extended and retracted synchronously, the front and rear position of the aircraft engine is adjusted. When the fifth push rod device 403 is raised and lowered synchronously, the lifting device 503 remains stationary; or the fifth push rod devices 403 on both sides remain stationary and the lifting device 503 is raised and lowered; or when the fifth push rod devices 403 on both sides and the lifting device 503 operate in opposite directions, the front and rear pitch angles of the aircraft engine are adjusted.

[0042] Preferably, the second push rod device 210 , the third push rod device 401 , the fourth push rod device 502 , the fifth push rod device 403 and the lifting device 503 are servo cylinders or electric cylinders.

[0043] See also Figure 3 The walking chassis 100 includes a main frame 101, and follow-up steering wheels 110 are respectively installed at the four corners of the main frame 101. Lifting steering wheels 120 are respectively installed at the front and rear ends of the main frame 101 and between the follow-up steering wheels 110 on the left and right sides. The follow-up steering wheels 110 are used to support the main frame 101. The walking chassis 100 is driven to move by the lifting steering wheels 120. The lifting steering wheels 120 are driving wheels and are supported by four follow-up steering wheels 110. They have good stability. The follow-up steering wheels 110 are passive wheels.

[0044] See also Figure 7 、 8In one embodiment, a fixed frame 102 is mounted at the front end of the main frame 101. A lifting seat 104 is mounted in the fixed frame 102 so as to slide up and down. A lifting steering wheel 120 is mounted on the lifting seat 104. Frames 103 are mounted on both sides of the main frame 101. A first push rod 105 is mounted at the top of the frame 103 and is connected to the lifting seat 104. The extension and retraction of the first push rod 105 drives the lifting seat 104 up and down, thereby driving the lifting steering wheel 120 up and down. Two sets of liftable steering wheels 120 are set in front and behind the middle axis of the walking chassis 100. They are raised and lowered by hydraulic cylinders. The cylinder pressure is set to an appropriate value to ensure that the liftable steering wheels 120 always keep in contact with the ground and have sufficient positive pressure to be converted into driving force, but do not lift the entire vehicle. Follow-up steering wheels 110 are set at the four corners of the main frame 101, which maintain linkage with the liftable steering wheels 120 to realize maneuvers such as steering, lateral movement, and rotation in place.

[0045] Furthermore, support legs 600 are respectively installed on the front and rear sides of the main frame 101. When the aircraft engine is installed, the support legs 600 are opened to provide support, thereby improving the stability of the platform.

[0046] The fixed frame 102 can be rectangular, so that the lifting seat 104 can be directional up and down. Figure 8 The fixed frame 102 is annular and is provided with longitudinal long holes 106 on both sides of the frame frame 103. The lifting seat 104 is provided with an ear shaft 107 extending out of the long hole 106 at the position corresponding to the long hole 106, and the first push rod device 105 is connected to the ear shaft 107; a swivel bracket 130 is rotatably installed at the bottom of the fixed frame 102, and the lower end of the lifting steering wheel 120 passes through the swivel bracket 130. The two follow-up steering wheels 110 located on the front side of the main frame body 101 are respectively installed on the swivel bracket 130, and the front end of the swivel bracket 130 is installed with a towing seat 131 and / or a towing arm 700. The above structure enables the traveling chassis 100 to have two modes: towing and self-propelled. During self-propelled operation, the lifting steering wheel 120 contacts the ground via the first push rod device 105, and the follower steering wheel 110 maintains a linkage with the lifting steering wheel 120, enabling maneuvers such as steering, lateral movement, and rotation in place. During towing, the towing seat 131 or the towing arm 700 is connected to the towing vehicle, and the first push rod device 105 is retracted to lift the lifting steering wheel 120 off the ground. During towing, the slewing bracket 130 rotates, and the two follower steering wheels 110 on the front side rotate accordingly, thereby achieving steering. Preferably, the first push rod device 105 is a hydraulic cylinder.

[0047] See also Figure 9The follower steering wheel 110 includes a first mounting plate 111, with a first wheel seat 112 rotatably mounted at the lower end of the first mounting plate 111. A follower wheel 113 is mounted at the bottom of the first wheel seat 112, and a first ring gear 114 is mounted on the top of the first wheel seat 112. A first servo motor 116 is mounted on the first mounting plate 111. The output shaft of the first servo motor 116 passes downward through the first mounting plate 111. A first gear 115 is mounted on the output shaft of the first servo motor 116, and the first gear 115 meshes with the first ring gear 114 for transmission. During self-propelled operation, the first servo motor 116 drives the first gear 115 to rotate, thereby adjusting the first ring gear 114, which in turn rotates the first wheel seat 112, thereby adjusting the angle of the follower wheel 113.

[0048] See also Figure 10 The elevator wheel 120 includes a second mounting plate 121. A second wheel seat 122 is rotatably mounted on the lower end of the second mounting plate 121. A drive wheel 123 is mounted on the bottom of the second wheel seat 122. A second ring gear 124 is mounted on the top of the second wheel seat 122. A second servo motor 126 is mounted on the second mounting plate 121. The output shaft of the second servo motor 126 extends downward through the second mounting plate 121. A second gear 125 is mounted on the output shaft of the second servo motor 126. The second gear 125 meshes with the second ring gear 124. The second servo motor 126 drives the second gear 125, which in turn rotates the second ring gear 124, thereby rotating the second wheel seat 122 and adjusting the angle of the drive wheel 123. During self-propelled operation, the first servo motor 116 and the second servo motor 126 rotate synchronously. During towing, the first servo motor 116 locks the direction of the follower wheel 113. The drive wheel 123 can be a hub motor.

[0049] See also Figure 2 、 34. The lifting mechanism 200 adopts a scissor-type lifting mechanism. The scissor-type lifting mechanism includes scissors forks located on the left and right sides of the walking chassis 100, respectively. The scissors forks include a first fork arm 201 and a second fork arm 202. The middle parts of the first fork arm 201 and the second fork arm 202 are hinged. The lower end of the first fork arm 201 is hinged to the first hinge seat 2011. The first hinge seat 2011 is fixedly connected to the walking chassis 100. The lower end of the second fork arm 202 is hinged to the second hinge seat 2021. The second hinge seat 2021 is installed on the walking chassis 100 to guide the sliding movement. On the chassis 100, the upper end of the first fork arm 201 is hinged to the third hinge seat 2012, which is installed on the posture adjustment platform 300 in a forward and backward guided sliding manner. The upper end of the second fork arm 202 is hinged to the fourth hinge seat 2022, which is installed on the posture adjustment platform 300 in a forward and backward guided sliding manner. The posture adjustment platform 300 is installed with a second push rod device 210, which is connected to the lifting mechanism 200. The second push rod device 210 pushes the posture adjustment platform 300 to move forward and backward to adjust its position. Through the above structure, the posture adjustment platform 300 can be raised and lowered over long distances, and the posture adjustment platform 300 can be translated forward and backward on the lifting mechanism 200 by extending and retracting the second push rod devices 210 on both sides.

[0050] Specifically, a linear guide is installed on the upper side of the walking chassis 100 at the second hinge seat 2021 and the lower side of the posture adjustment platform 300. Slide blocks are installed on the second hinge seat 2021, the third hinge seat 2012 and the fourth hinge seat 2022. The slide blocks are slidably connected with the linear guide rails. Figure 4 In the embodiment, one end of the second push rod device 210 is connected to the posture adjustment platform 300, and the other end is connected to the center pin of the fourth hinge seat 2022.

[0051] See also Figure 2 、 5 6. Slide rails 301 are installed on the top of the posture adjustment platform 300 at positions corresponding to the front bracket 400 and the rear bracket 500, respectively. Slide blocks 302 are installed on the bottom of the front bracket 400 and the rear bracket 500, respectively. The front bracket 400 and the rear bracket 500 are respectively mounted on the corresponding slide rails 301 via the slide blocks 302. A third push rod device 401 is installed on the posture adjustment platform 300 at a position located on the front bracket 400, and a fourth push rod device 502 is installed on the posture adjustment platform 300 at a position located on the rear bracket 500. Through the above structure, when the third push rod device 401 and the fourth push rod device 502 are extended or retracted, they can push and pull the front bracket 400 and the rear bracket 500, respectively, to move left and right along the slide rails 301.

[0052] See also Figure 5A guide cylinder 404 is mounted on the top of the fifth push rod assembly 403. A lifting shaft 405 is mounted within the guide cylinder 404. The lower end of the lifting shaft 405 is rotatably connected to the telescopic rod of the fifth push rod assembly 403. The front connecting seat 410 is hingedly mounted on the upper end of the lifting shaft 405. The upper end of the lifting shaft 405 is provided with an inclined surface 406, which limits the position of the front connecting seat 410. Through the above structure, the rotation, lifting, and swinging of the front connecting seat 410 are achieved. The inclined surface 406 on the upper end of the lifting shaft 405 is used to limit the position of the front connecting seat 410, allowing the front connecting seat 410 to maintain a certain angle when not subjected to external forces and to be able to flip upward.

[0053] See also Figure 6 A first trough 513 is mounted at the bottom of the rear connecting base 510. A roller 514 is mounted inside the first trough 513. The first trough 513 is located within the second trough 512, with the roller 514 abutting against the second trough 512. The sidewalls of the second trough 512 are provided with elongated holes. Screws 516 are mounted on either side of the first trough 513. The screws 516 pass through the elongated holes in the sidewalls of the second trough 512 and are then screwed onto nuts. A protruding base 511 is provided at the bottom of the second trough 512, which is hingedly connected to the rear bracket 500. This structure allows the rear connecting base 510 to slide along the inclined surface of the second trough 512, facilitating adjustment of the angle of the aircraft engine during rollover.

[0054] During installation, the aircraft engine is mounted on two front connection seats 410 and two rear connection seats 510;

[0055] When the installation platform moves, it is driven by the traveling chassis 100 or moved by dragging and traction;

[0056] When roughly adjusting the installation height, the lifting mechanism 200 is controlled to adjust the height of the posture adjustment platform 300;

[0057] When fine-tuning the installation height, the two fifth push rod devices 403 and the lifting device 503 are controlled to rise and fall synchronously;

[0058] When adjusting the angle of left and right rollover, the fifth push rod devices 403 on both sides are independently controlled to rise and fall;

[0059] When adjusting the left and right positions, the third push rod device 401 and the fourth push rod device 502 are controlled to extend and retract synchronously;

[0060] When adjusting the left and right swing positions, the third push rod device 401 or the fourth push rod device 502 is independently controlled to extend and retract;

[0061] When adjusting the forward and backward movement, the second push rod devices 210 on both sides are controlled to extend and retract synchronously;

[0062] When adjusting the front and rear pitch angles, the fifth push rod devices 403 on both sides are controlled to rise and fall synchronously, and the lifting device 503 remains stationary; or the fifth push rod devices 403 on both sides remain stationary, and the lifting device 503 rises and falls; or the fifth push rod devices 403 on both sides and the lifting device 503 run in opposite directions.

Claims

1. An aircraft engine mounting platform, characterized in that: The invention comprises a walking chassis (100), a lifting mechanism (200), a posture adjustment platform (300), a front bracket (400) and a rear bracket (500), wherein the lifting mechanism (200) is mounted on the walking chassis (100), the posture adjustment platform (300) is mounted on the lifting mechanism (200) in a forward and backward guiding manner, one end of a second push rod device (210) is connected to the posture adjustment platform (300), and the other end is connected to the lifting mechanism (200), the front bracket (400) is mounted on the posture adjustment platform (300) in a forward and backward guiding manner, On the front side of the platform (300), one end of the third push rod device (401) is connected to the posture adjustment platform (300), and the other end is connected to the front bracket (400); a support seat (501) is installed on the rear side of the posture adjustment platform (300) for left and right guide sliding; one end of the fourth push rod device (502) is connected to the posture adjustment platform (300), and the other end is connected to the support seat (501); a lifting device (503) is installed on the support seat (501), and the rear bracket (500) is rotatably installed on the lifting device (503).

2. The aircraft engine mounting platform according to claim 1, characterized in that: The left and right ends of the front bracket (400) are respectively hingedly mounted with a fifth push rod device (403) through an axle seat (402) so as to swing forward and backward. The telescopic end of the fifth push rod device (403) extends upward and is hingedly mounted with a front connecting seat (410). The left and right ends of the rear bracket (500) are respectively hingedly mounted with a rear connecting seat (510) so as to swing forward and backward.

3. The aircraft engine mounting platform according to claim 1, characterized in that: The walking chassis (100) includes a main frame (101), and follower steering wheels (110) are respectively installed at the four corners of the main frame (101). Lifting steering wheels (120) are respectively installed at the front and rear ends of the main frame (101) and between the follower steering wheels (110) on the left and right sides. The walking chassis (100) is driven to move by the lifting steering wheels (120).

4. The aircraft engine mounting platform according to claim 3, characterized in that: A fixed frame (102) is installed at the front end of the main frame (101), a lifting seat (104) is installed in the fixed frame (102) so as to slide up and down, and a lifting steering wheel (120) is installed on the lifting seat (104). The main frame (101) is respectively installed with frame frames (103) on both sides of the fixed frame (102), and a first push rod device (105) is installed at the top of the frame frame (103), and the first push rod device (105) is connected to the lifting seat (104).

5. The aircraft engine mounting platform according to claim 4, characterized in that: The fixed frame (102) is annular, and longitudinal long holes (106) are respectively provided on both sides of the fixed frame (102) located on the frame frame (103). The lifting seat (104) is provided with an ear shaft (107) extending out of the long hole (106) at a position corresponding to the long hole (106), and the first push rod device (105) is connected to the ear shaft (107). A swivel bracket (130) is rotatably installed at the bottom of the fixed frame (102), and the lower end of the lifting steering wheel (120) passes through the swivel bracket (130). Two follower steering wheels (110) located on the front side of the main frame (101) are respectively installed on the swivel bracket (130), and a towing seat (131) and / or a towing arm (700) are installed at the front end of the swivel bracket (130).

6. The aircraft engine mounting platform according to claim 3, characterized in that: The follower steering wheel (110) includes a first mounting plate (111), a first wheel seat (112) is rotatably mounted on the lower end of the first mounting plate (111), a follower wheel (113) is mounted on the bottom of the first wheel seat (112), a first gear ring (114) is mounted on the top of the first wheel seat (112), a first servo motor (116) is mounted on the first mounting plate (111), an output shaft of the first servo motor (116) passes downward through the first mounting plate (111), a first gear (115) is mounted on the output shaft of the first servo motor (116), and the first gear (115) is meshed with the first gear ring (114) for transmission; The elevator steering wheel (120) includes a second mounting plate (121), a second wheel seat (122) is rotatably mounted on the lower end of the second mounting plate (121), a driving wheel (123) is mounted on the bottom of the second wheel seat (122), a second gear ring (124) is mounted on the top of the second wheel seat (122), a second servo motor (126) is mounted on the second mounting plate (121), an output shaft of the second servo motor (126) passes downward through the second mounting plate (121), a second gear (125) is mounted on the output shaft of the second servo motor (126), and the second gear (125) is meshed with the second gear ring (124) for transmission.

7. The aircraft engine mounting platform according to claim 1, characterized in that: The lifting mechanism (200) adopts a scissor-type lifting mechanism, which includes scissor forks respectively located on the left and right sides of the walking chassis (100), and the scissor forks include a first fork arm (201) and a second fork arm (202). The middle parts of the first fork arm (201) and the second fork arm (202) are hinged. The lower end of the first fork arm (201) is hinged to the first hinge seat (211), and the first hinge seat (211) is fixedly connected to the walking chassis (100). The lower end of the second fork arm (202) is hinged to the second hinge seat (221), and the second hinge seat (221) is installed on the walking chassis (100) in a forward and backward guiding manner. 100), the upper end of the first fork arm (201) is hinged to the third hinge seat (2012), the third hinge seat (2012) is installed on the attitude adjustment platform (300) in a forward and backward guiding manner, the upper end of the second fork arm (202) is hinged to the fourth hinge seat (2022), the fourth hinge seat (2022) is installed on the attitude adjustment platform (300) in a forward and backward guiding manner, and a second push rod device (210) is installed on the attitude adjustment platform (300), the second push rod device (210) is connected to the lifting mechanism (200), and the attitude adjustment platform (300) is pushed forward and backward by the second push rod device (210) to adjust the position.

8. The aircraft engine mounting platform according to claim 1, characterized in that: The top of the posture adjustment platform (300) is provided with a slide rail (301) at positions corresponding to the front bracket (400) and the rear bracket (500), and the bottoms of the front bracket (400) and the rear bracket (500) are provided with a slider (302), and the front bracket (400) and the rear bracket (500) are respectively provided with a slider (302). The front bracket (400) and the rear bracket (500) are respectively provided with the corresponding slide rail (301) via the slider (302). The posture adjustment platform (300) is provided with a third push rod device (401) at a position located at the front bracket (400), and the posture adjustment platform (300) is provided with a fourth push rod device (502) at a position located at the rear bracket (500).

9. The aircraft engine mounting platform according to claim 2, characterized in that: A guide cylinder (404) is installed on the top of the fifth push rod device (403), and a lifting shaft (405) is installed in the guide cylinder (404). The lower end of the lifting shaft (405) is rotatably connected to the telescopic rod of the fifth push rod device (403). The front connecting seat (410) is hingedly installed on the upper end of the lifting shaft (405). The upper end of the lifting shaft (405) is provided with an inclined surface (406), and the inclined surface (406) limits the front connecting seat (410).

10. The aircraft engine mounting platform according to claim 2, characterized in that: A first trough (513) is further installed at the bottom of the rear connecting seat (510), a roller (514) is installed inside the first trough (513), the first trough (513) is located in the second trough (512), the roller (514) abuts against the second trough (512), a long hole is provided on the side wall of the second trough (512), screws (516) are respectively installed on both sides of the first trough (513), the screws (516) pass through the long holes on the side walls of the second trough (512) and are screwed with nuts, and a protruding seat (511) is provided at the bottom of the second trough (512), and the protruding seat (511) is hinged to the rear bracket (500).

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