Universal mounting vehicle for aircraft engine

Abstract

The invention relates to the technical field of aircraft mounting equipment, in particular to an aircraft engine universal mounting vehicle which comprises a base and the like, a supporting frame is fixedly connected to the center of the top end of the base, a mounting table is arranged on the supporting frame, a folding rod is rotationally connected to one end of the base, and the other end of the folding rod is rotationally connected with one end of the mounting table; an electric guide rail is mounted on the mounting table, a moving seat is mounted on the electric guide rail, a double-shaft motor is mounted on the moving seat, mounting seats are fixedly connected to the positions, close to two output shafts of the double-shaft motor, of the moving seat, U-shaped pieces are slidably connected to the mounting seats, racks are arranged on the inner sides of the U-shaped pieces, gears are fixedly connected to the two output shafts of the double-shaft motor, and the gears are fixedly connected to the two output shafts of the double-shaft motor. The angle adjusting assembly composed of the double-shaft motor, the rack and the U-shaped piece is matched with the electric guide rail, accurate adjustment of the angle and the horizontal position of the engine is achieved, and compared with a traditional manual or simple hydraulic adjusting mode, the engine and an aircraft interface can be rapidly aligned, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aircraft installation equipment, and particularly relates to a universal installation vehicle for aircraft engines. BACKGROUND

[0002] The aircraft engine installation vehicle in the prior art mainly has two basic functions: one is to realize short-distance transfer of the engine in a maintenance workshop or a parking apron by means of a base and a moving wheel structure, to replace traditional manual carrying and reduce the labor intensity of the operator; and the other is to preliminarily adjust the height or horizontal position of the engine by means of a manual rocker, a simple hydraulic push rod and the like, to provide basic assistance for the operator to align the engine with the installation interface of the aircraft fuselage.

[0003] The existing installation vehicle may have some deficiencies in actual operation. Some traditional installation vehicles rely on manual rotation of a rocker or direct prying of the engine to adjust the angle, and due to the limitation of the control accuracy of human force, the alignment process of the engine and the aircraft interface often needs to be repeated by trial and error, the average time consumption of a single alignment operation is long, and the engine interface or the aircraft interface is prone to damage due to improper control of the manual force. While a small number of installation vehicles equipped with hydraulic adjustment structures may be difficult to accurately control the angle offset of the engine due to the characteristics of pressure hysteresis and adjustment overshoot of the hydraulic system, and cannot meet the high-precision installation requirements. These defects of the prior art result in low efficiency and high risk of interface damage in the installation operation of the aircraft engine, and therefore there is an urgent need to develop a universal installation vehicle capable of accurately adjusting the angle and horizontal position of the engine. SUMMARY

[0004] In order to overcome the shortcomings of low adjustment efficiency and insufficient accuracy of the existing installation vehicle, the present application provides a universal installation vehicle for aircraft engines.

[0005] The technical implementation scheme of the present application is: a universal installation vehicle for aircraft engines, comprising a base, a support frame, a folding rod, an installation table, an electric guide rail, a moving seat, an installation seat, a double-shaft motor, a gear, a U-shaped piece, a rack, a fixing piece and a clamping mechanism, the top center of the base is fixedly connected with the support frame, the support frame is provided with the installation table, one end of the base is rotatably connected with the folding rod, the other end of the folding rod is rotatably connected with one end of the installation table, the installation table is provided with the electric guide rail, the electric guide rail is provided with the moving seat, the moving seat is provided with the double-shaft motor, the moving seat is fixedly connected with the installation seat at two output shafts close to the double-shaft motor, the installation seat is slidably connected with the U-shaped piece, the inner side of the U-shaped piece is provided with the rack, the two output shafts of the double-shaft motor are fixedly connected with the gears, the gears are engaged with the rack, the two ends of the U-shaped piece are fixedly connected with the fixing pieces, and the clamping mechanism is fixedly connected between the two fixing pieces.

[0006] Further, the clamping mechanism comprises a clamping seat, a clamping block, a servo motor, a bidirectional screw rod and a moving piece, the clamping seat is fixedly connected to the fixing piece, the servo motor is installed at the bottom end of the clamping seat, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod, the first end and the tail end of the bidirectional screw rod are both installed with the moving piece, and the clamping block is fixedly connected to the moving piece.

[0007] Further, the clamping mechanism comprises a clamping seat, a clamping block, a servo motor, a bidirectional screw rod and a moving piece, the clamping seat is fixedly connected to the fixing piece, the servo motor is installed at the bottom end of the clamping seat, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod, the first end and the tail end of the bidirectional screw rod are both installed with the moving piece, and the clamping block is fixedly connected to the moving piece.

[0008] Further, the clamping mechanism comprises a clamping seat, a clamping block, a servo motor, a bidirectional screw rod and a moving piece, the clamping seat is fixedly connected to the fixing piece, the servo motor is installed at the bottom end of the clamping seat, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod, the first end and the tail end of the bidirectional screw rod are both installed with the moving piece, and the clamping block is fixedly connected to the moving piece.

[0009] Further, the clamping mechanism comprises a clamping seat, a clamping block, a servo motor, a bidirectional screw rod and a moving piece, the clamping seat is fixedly connected to the fixing piece, the servo motor is installed at the bottom end of the clamping seat, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod, the first end and the tail end of the bidirectional screw rod are both installed with the moving piece, and the clamping block is fixedly connected to the moving piece.

[0010] Further, two clamping mechanisms are arranged, the two clamping mechanisms are distributed along the longitudinal direction of the moving seat, and the center line of the two clamping mechanisms is parallel to the engine axis, so that the two clamping mechanisms are synchronous when clamping the engine and clamp the engine from different positions along the engine axis.

[0011] Further, the clamping mechanism comprises a clamping seat, a clamping block, a servo motor, a bidirectional screw rod and a moving piece, the clamping seat is fixedly connected to the fixing piece, the servo motor is installed at the bottom end of the clamping seat, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod, the first end and the tail end of the bidirectional screw rod are both installed with the moving piece, and the clamping block is fixedly connected to the moving piece.

[0012] Further, the clamping mechanism comprises a clamping seat, a clamping block, a servo motor, a bidirectional screw rod and a moving piece, the clamping seat is fixedly connected to the fixing piece, the servo motor is installed at the bottom end of the clamping seat, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod, the first end and the tail end of the bidirectional screw rod are both installed with the moving piece, and the clamping block is fixedly connected to the moving piece.

[0013] The beneficial effects of the present application are: 1. The angle adjusting assembly composed of the double-shaft motor, the rack and the U-shaped piece cooperates with the electric guide rail to realize accurate adjustment of the engine angle and horizontal position, so that the engine and the aircraft interface can be quickly aligned, and the installation efficiency is improved compared with the traditional manual or simple hydraulic adjustment mode.

[0014] 2. The clamping assembly provided with the bidirectional screw rod, the cotton wheel and the double clamping mechanism, the bidirectional screw rod drives the clamping block to adapt to engines of different diameters, the cotton wheel realizes flexible clamping to avoid damage to the shell, and the double clamping mechanism improves stability, effectively solves the problems of poor universality and easy damage of existing equipment, and significantly improves the adaptation ability of the equipment to different types of engines.

[0015] 3、The present application is tilted to the ground state by the tilting mechanism composed of the cylinder and the folding rod, cooperating with the horizontal movement function of the electric guide rail, so that the installation table can be tilted to the ground state, greatly reducing the lifting height requirement when the engine is connected, reducing the labor intensity of the operator, and avoiding the risk of engine bumping during connection.

[0016] 4、The present application realizes the quick switching of device movement and stable support through the cooperative design of the telescopic rod and the universal wheel, the telescopic rod can accurately adjust the engine installation height, the universal wheel is convenient for flexible transfer of the device in narrow maintenance space, solves the poor cooperation of the existing equipment movement and lifting, and improves the operation scene adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the installation table, the electric guide rail and the moving seat of the present application.

[0019] Figure 3 It is a plan view of the inclined seat, the cylinder and the folding rod of the present application.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the moving seat, the mounting seat and the clamping mechanism of the present application.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the moving seat, the double-shaft motor and the gear of the present application.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the mounting seat, the U-shaped piece and the clamping seat of the present application.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the gear, the U-shaped piece and the rack of the present application.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping mechanism of the present application.

[0025] The meanings of the reference signs in the drawing are as follows: 1-base, 2-telescopic rod, 3-universal wheel, 4-inclined seat, 5-cylinder, 6-support frame, 7-folding rod, 8-installation table, 9-electric guide rail, 10-moving seat, 11-mounting seat, 12-double-shaft motor, 13-gear, 14-U-shaped piece, 15-rack, 16-fixing piece, 17-clamping seat, 18-guide rod, 19-clamping block, 20-cotton wheel, 21-servo motor, 22-bidirectional screw rod, 23-moving piece. DETAILED DESCRIPTION

[0026] The present application will be further described below in combination with the drawings and specific embodiments.

[0027] Embodiment: A universal aircraft engine installation vehicle, such as Figures 1-8 As shown, it includes a base 1, a support frame 6, a folding rod 7, a mounting platform 8, an electric guide rail 9, a moving base 10, a mounting base 11, a dual-axis motor 12, a gear 13, a U-shaped member 14, a rack 15, a fixing member 16 and a clamping mechanism. The top center of the base 1 is fixedly connected to the support frame 6, and the mounting platform 8 is provided on the support frame 6. The folding rod 7 is rotatably connected to one end of the base 1, and the other end of the folding rod 7 is rotatably connected to one end of the mounting platform 8. The electric guide rail 9 is installed on the mounting platform 8. There is a movable base 10, on which a dual-axis motor 12 is installed. The two output shafts of the movable base 10 near the dual-axis motor 12 are fixedly connected with a mounting base 11, and a U-shaped part 14 is slidably connected to the mounting base 11. A rack 15 is provided on the inner side of the U-shaped part 14. Gears 13 are fixedly connected to the two output shafts of the dual-axis motor 12, and the gear 13 is engaged with the rack 15. Fixed parts 16 are fixedly connected at both ends of the U-shaped part 14, and a clamping mechanism is fixedly connected between the two fixed parts 16.

[0028] like Figures 6-8 As shown, the clamping mechanism includes a clamping seat 17, a clamping block 19, a servo motor 21, a bidirectional screw rod 22, and a moving part 23. The clamping seat 17 is fixedly connected to the fixed part 16, and the servo motor 21 is installed at the bottom end of the clamping seat 17. The bidirectional screw rod 22 is fixedly connected to the output shaft of the servo motor 21, and the moving part 23 is installed at both ends of the bidirectional screw rod 22. The clamping block 19 is fixedly connected to the moving part 23. The bidirectional screw rod 22 is driven to rotate by the servo motor 21, and the moving part 23 is driven to move synchronously toward or away from each other by the reverse threads of the head and tail of the bidirectional screw rod 22, thereby realizing the precise opening and closing of the clamping block 19, and cooperating with the stable connection between the fixed part 16 and the clamping seat 17, it can not only ensure the adaptive clamping of the clamping block 19 to engines of different diameters, but also ensure the uniform clamping force through the precise control of the servo motor 21, avoid the engine shaking caused by too loose clamping or damage to components due to too tight clamping, and significantly improve the stability and accuracy of the clamping operation.

[0029] like Figures 6-8 As shown, the inner wall of the clamp 19 is an arc-shaped structure, and a cotton wheel 20 is rotatably connected to the inner wall of the clamp 19. The cotton wheel 20 is made of an elastic rubber material with a cotton layer on the outside. The arc-shaped structure of the inner wall of the clamp 19 adapts to the curvature of the engine casing, and the cotton wheel 20 rotatably connected thereto is made of an elastic rubber material with a cotton layer on the outside. When clamping the engine, the cotton wheel 20 can flexibly contact the engine casing. On the one hand, the elastic deformation buffers the clamping force to avoid damage such as scratches and dents on the casing caused by rigid contact. On the other hand, the rotating structure can reduce the friction resistance between the engine and the clamp 19 when docking or fine-tuning, thereby reducing the risk of wear on the engine casing, while improving the fit during clamping and enhancing the clamping stability.

[0030] As Figures 6-8 shown, the outer side wall of the clamping block 19 is fixedly connected with a guide rod 18 in the horizontal direction, and the end of the guide rod 18 away from the clamping block 19 penetrates the side wall of the clamping seat 17 and is in sliding connection with the clamping seat 17. The horizontally fixed guide rod 18 of the outer side wall of the clamping block 19 penetrates the side wall of the clamping seat 17 and is in sliding connection with the clamping seat 17, which can effectively limit the circumferential deviation of the moving part 23 caused by the rotation of the bidirectional screw rod 22, ensure the smooth movement of the moving part 23 along the axial direction of the bidirectional screw rod 22, and further drive the clamping block 19 to maintain a horizontal opening and closing trajectory, avoid the deviation of the clamping position caused by the deviation of the clamping block 19 or uneven stress, ensure the accurate positioning of the clamping mechanism on the engine, and at the same time reduce the thread wear of the moving part 23 and the bidirectional screw rod 22, prolong the service life of the components.

[0031] As Figures 1-3 shown, the top end of the base 1 away from the folding rod 7 is fixedly connected with an inclined seat 4, the inclined seat 4 is in an inclined state, and the inclined seat 4 is fixedly installed with a cylinder 5. The top end of the base 1 away from the folding rod 7 is fixedly connected with an inclined seat 4, which can provide a suitable installation angle for the cylinder 5, so that the cylinder 5 is stably fixed and the direction of the telescopic shaft matches the inclination requirement of the mounting table 8; the telescopic shaft of the cylinder 5 is rotatably connected with the bottom surface of the mounting table 8, and cooperates with the rotating connection of the folding rod 7 and the mounting table 8 and the base 1, so that the mounting table 8 can be stably driven to rotate around the folding rod 7 through the accurate extension and retraction of the telescopic shaft of the cylinder 5, and the inclination angle adjustment of the mounting table 8 can be realized, which is convenient for reducing the height and difficulty of hoisting during engine connection.

[0032] As Figure 4 shown, two clamping mechanisms are provided, which are distributed in the longitudinal direction of the moving seat 10 and the center lines of the two clamping mechanisms are parallel to the engine axis. When clamping the engine, the two clamping mechanisms simultaneously act on the engine from different positions on the engine axis to form two-point stable clamping of the engine, effectively dispersing the stress caused by the weight of the engine, avoiding the axial deviation, shaking or local excessive stress of the engine caused by single clamping point, especially during engine transfer and angle adjustment, which can greatly improve the overall stability and reduce the risk of engine falling off, and adapt to the clamping requirements of engines of different lengths and specifications.

[0033] As Figures 1-3As shown, telescopic rods 2 are fixedly installed at the four corners of the bottom end of the base 1. The telescopic rods 2 are electric screw structures, which are used to adjust the overall height of the base 1 to adapt to the height requirements of different installation scenarios. Compared with traditional hydraulic or push rod structures, it has higher height adjustment accuracy, and can accurately control the overall lifting height of the base 1 through screw transmission, and flexibly adapt to the height requirements of different aircraft engine installation points. At the same time, the electric screw structure has strong self-locking properties. After adjustment, it can maintain a stable height without an additional locking mechanism, avoiding tilting or height displacement of the base 1 due to accidental extension and retraction of the telescopic rod 2 during operation, thereby improving the adaptability and safety of the lifting device in different installation scenarios.

[0034] like Figures 1-3 As shown, the bottom end of the base 1 is rotatably connected to a universal wheel 3 near each telescopic rod 2. The universal wheel 3 is provided with a brake locking mechanism. The universal wheel 3 can realize the flexible movement of the device on the ground, and is convenient for quickly transporting the device to the engine docking point or aircraft installation point, and is particularly suitable for position adjustment in narrow maintenance spaces; the brake locking mechanism of the universal wheel 3 can quickly lock the wheel body after the device is moved into place, and cooperate with the support of the telescopic rod 2 to avoid accidental sliding of the device during operation, thereby ensuring the stable progress of engine docking, clamping, angle adjustment and installation operations, and taking into account both mobility convenience and operation stability.

[0035] The operating process and operating principles of each component of this aircraft engine universal installation vehicle are as follows. It is divided into four stages: equipment movement, engine connection, attitude adjustment, and precise installation: Phase 1: Equipment movement. In the initial state, the telescopic rod 2 is in the retracted state, so that the universal wheel 3 is completely grounded. The operator releases the brake locking mechanism of the universal wheel 3, pushes the base 1 to move on the ground through the universal wheel 3, and transports the device to the engine storage position (docking point); after arriving at the docking point, the telescopic rod 2 is started, so that the telescopic end of the telescopic rod 2 extends downward and contacts the ground, and the base 1 is stably supported by the telescopic rod 2; at the same time, the brake mechanism of the universal wheel 3 is locked to prevent the device from moving during operation and ensure stable docking operation.

[0036] Phase 2: Engine connection, start the cylinder 5 on the inclined seat 4, and control the extension of the telescopic shaft of the cylinder 5; since the telescopic shaft of the cylinder 5 is rotatably connected to the mounting platform 8, and one end of the mounting platform 8 is rotatably connected to the folding rod 7, when the telescopic shaft is extended, it will push the mounting platform 8 to rotate upward around the folding rod 7, so that the end of the mounting platform 8 away from the folding rod 7 is raised and the end close to the folding rod 7 is lowered until the mounting platform 8 is close to the ground at one end of the folding rod 7, which is convenient for the operator to transfer the engine to the clamping mechanism; at the same time, start the electric guide rail 9, and the electric guide rail 9 drives the moving seat 10 to move along the longitudinal direction of the mounting platform 8, so that the two clamping mechanisms move synchronously to the end of the mounting platform 8 close to the folding rod 7, shortening the distance between the clamping mechanism and the ground engine; the clamping mechanism opens and closes: start the servo motor 21 at the bottom end of the clamping mechanism, and control the servo motor 21 to rotate forward; the output shaft of the servo motor 21 drives the bidirectional screw rod 22 to rotate, because the threads of the bidirectional screw rod 22 at the head and tail ends rotate in opposite directions , and the moving part 23 is threadedly connected to the bidirectional screw rod 22. When the bidirectional screw rod 22 rotates forward, it drives the two moving parts 23 to move in opposite directions along the screw rod axial direction, and then drives the two clamping blocks 19 to open synchronously to both sides of the clamping seat 17; the operator hoistes the engine between the clamping blocks 19 of the two clamping mechanisms to ensure that the engine axis coincides with the center connection line of the two clamping mechanisms; then the servo motor 21 is reversed, and the bidirectional screw rod 22 is reversed to drive the two moving parts 23 to move toward each other, and the clamping blocks 19 are synchronously moved toward the center until the cotton wheel 20 inside the clamping block 19 is in close contact with the engine casing; the cotton wheel 20 adapts to the curvature of the engine casing through elastic deformation to achieve flexible clamping and avoid scratches; at the same time, the guide rod 18 outside the clamping block 19 slides along the side wall of the clamping seat 17 to ensure that the clamping block 19 moves smoothly and the clamping force is uniform; the two clamping mechanisms clamp synchronously, further improving the clamping stability of the engine and preventing the engine from shaking during transportation.

[0037] Stage three: engine posture adjustment, after the engine clamping is completed, start the cylinder 5, operate the telescopic shaft of the cylinder 5 to retract; the telescopic shaft pulls the mounting table 8 to rotate downward around the rotating shaft of the folding rod 7 until the bottom surface of the mounting table 8 is attached to the top surface of the support frame 6, and the mounting table 8 returns to the horizontal state; the support frame 6 provides support to the mounting table 8 to offset the pressure of the engine weight on the mounting table 8, avoiding deformation of the mounting table 8. The device is transported to the installation point: start the telescopic rod 2 to retract, so that the universal wheel 3 touches the ground, and the telescopic rod 2 is separated from the ground; release the brake of the universal wheel 3, and push the engine to the installation point of the aircraft engine; start the telescopic rod 2 to extend again, so that the base 1 is lifted, driving the engine to rise synchronously until the height of the engine approaches the installation interface of the aircraft, and the telescopic rod 2 stops moving. Engine angle adjustment: according to the angle requirement of the aircraft installation interface, start the double-shaft motor 12; the two output shafts of the double-shaft motor 12 synchronously drive the gear 13 to rotate, the gear 13 is engaged with the arc-shaped rack 15 inside the U-shaped piece 14, driving the rack 15 and the U-shaped piece 14 to rotate along the slide of the mounting seat 11; the U-shaped piece 14 synchronously rotates the clamping mechanism and the engine through the fixing piece 16, realizing precise adjustment of the deflection angle of the engine; since the double-shaft motor 12 synchronously drives the gears 13 on both sides, it ensures that the engine is evenly stressed on both sides, avoiding tilting of the engine during angle adjustment; during adjustment, the position of the moving seat 10 can be finely adjusted through the electric guide rail 9, so that the engine interface is precisely aligned with the aircraft installation interface.

[0038] Stage four: precise engine installation, clamping mechanism release: after the posture and position of the engine are adjusted, start the servo motor 21 of the clamping mechanism to rotate forward, the bidirectional screw rod 22 drives the clamping block 19 to move away from each other, and the cotton wheel 20 is separated from the engine shell, releasing the clamping of the engine.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A universal aircraft engine installation vehicle, characterized by: The invention comprises a base (1), a support frame (6), a folding rod (7), a mounting platform (8), an electric guide rail (9), a movable base (10), a mounting base (11), a dual-axis motor (12), a gear (13), a U-shaped member (14), a rack (15), a fixing member (16) and a clamping mechanism. The top center of the base (1) is fixedly connected to the support frame (6), the mounting platform (8) is provided on the support frame (6), one end of the base (1) is rotatably connected to the folding rod (7), the other end of the folding rod (7) is rotatably connected to one end of the mounting platform (8), the mounting platform (8) is provided with an electric guide rail (9), the electric guide rail (9 ) is mounted on a movable seat (10), a dual-axis motor (12) is mounted on the movable seat (10), two output shafts of the movable seat (10) close to the dual-axis motor (12) are fixedly connected to a mounting seat (11), a U-shaped member (14) is slidably connected to the mounting seat (11), a rack (15) is provided on the inner side of the U-shaped member (14), two output shafts of the dual-axis motor (12) are fixedly connected to a gear (13), the gear (13) is meshed with the rack (15), both ends of the U-shaped member (14) are fixedly connected to a fixing member (16), and a clamping mechanism is fixedly connected between the two fixing members (16).

2. The universal aircraft engine installation vehicle according to claim 1, characterized in that: The clamping mechanism includes a clamping seat (17), a clamping block (19), a servo motor (21), a bidirectional screw rod (22), and a moving member (23). The fixing member (16) is fixedly connected to the clamping seat (17), the bottom end of the clamping seat (17) is mounted with a servo motor (21), the output shaft of the servo motor (21) is fixedly connected with a bidirectional screw rod (22), the moving member (23) is mounted at both ends of the bidirectional screw rod (22), and the moving member (23) is fixedly connected with the clamping block (19).

3. The universal aircraft engine installation vehicle according to claim 2, characterized in that: The utility model also includes a cotton wheel (20), the inner side wall of the clamping block (19) is an arc-shaped structure, and the inner side wall of the clamping block (19) is rotatably connected to the cotton wheel (20), and the cotton wheel (20) is made of an elastic rubber material and is covered with a cotton layer.

4. The universal aircraft engine installation vehicle according to claim 3, characterized in that: It also includes a guide rod (18), which is fixedly connected to the outer wall of the clamping block (19) in the horizontal direction, and the end of the guide rod (18) away from the clamping block (19) passes through the side wall of the clamping seat (17) and is slidably connected to the clamping seat (17).

5. The universal aircraft engine installation vehicle according to claim 4, characterized in that: The utility model also includes an inclined seat (4) and a cylinder (5), wherein the inclined seat (4) is fixedly connected to the side of the top of the base (1) away from the folding rod (7), the inclined seat (4) is in an inclined state, and the cylinder (5) is fixedly mounted on the inclined seat (4), and the top of the telescopic shaft of the cylinder (5) is rotatably connected to the side of the bottom surface of the mounting platform (8) away from the folding rod (7) through a hinge.

6. The universal aircraft engine installation vehicle according to claim 1, characterized in that: Two clamping mechanisms are provided, the two clamping mechanisms are spaced apart along the longitudinal direction of the movable seat (10), and the center line of the two clamping mechanisms is parallel to the engine axis. When clamping the engine, the two clamping mechanisms act synchronously to clamp the engine from different positions along the engine axis.

7. The universal aircraft engine installation vehicle according to claim 6, characterized in that: It also includes a telescopic rod (2), which is fixedly installed at the four corners of the bottom end of the base (1). The telescopic rod (2) is an electric screw structure and is used to adjust the overall height of the base (1) to adapt to the height requirements of different installation scenarios.

8. The universal aircraft engine installation vehicle according to claim 7, characterized in that: It also includes a universal wheel (3), and the bottom end of the base (1) is rotatably connected to the universal wheel (3) at a position close to each telescopic rod (2). The universal wheel (3) has a brake locking mechanism for realizing the switching between the mobile and fixed states of the device.

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