An assembly system for aeroengine major components interfacing

Abstract

The application relates to an assembly system for butt joint of aero-engine large components, wherein an auxiliary assembly vehicle with a sling is arranged at the upper end of a frame, a lifting frame body is arranged in the frame, a main assembly vehicle comprises a walking vehicle body and a main driven rolling mechanism, the walking vehicle body is arranged at the lower side of the lifting frame body, the main driven rolling mechanism is arranged on the walking vehicle body, a first lifting appliance is arranged at the front of the walking vehicle body, a second lifting appliance is arranged at the rear of the walking vehicle body, a follow-up rolling assembly is arranged at the tail end of the walking vehicle body, the main driven rolling mechanism comprises an arc-shaped rotating arm, a mounting frame, a rolling driving assembly and a load bearing pin assembly, the mounting frame is connected with the walking vehicle body, the arc-shaped rotating arm and the rolling driving assembly are arranged on the mounting frame, the arc-shaped rotating arm is driven to rotate relative to the mounting frame through the rolling driving assembly, and the load bearing pin assembly is arranged at the lower side of both ends of the arc-shaped rotating arm. The application can realize accurate centering of aero-engine large component assembly, can lift and roll the engine components and the whole machine, and guarantees the assembly quality and the assembly efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aero-engine assembly, in particular to an assembly system for aero-engine large component butt joint. BACKGROUND

[0002] The butt joint assembly of aero-engine large components is an important link of its final assembly process, and the process quality of butt joint assembly directly affects the performance of aero-engine. At present, the butt joint assembly of aero-engine large components in China mainly relies on manual operation of cranes, ground transport vehicles and other tools to complete, and the manual operation of adjusting the pose of engine components is mainly based on experience, plus the factors of heavy weight of aero large components, which leads to the problems of poor operation precision, high labor intensity, low assembly efficiency and so on in the traditional operation mode, and because the large components are difficult to center, they often need to be tried many times to complete the butt joint, which is easy to cause the scratch of parts in the process, and after the completion of butt joint assembly, the operating personnel also need to install various parts such as power accessories, pipelines and other parts on the periphery of the engine, at this time, the aero-engine often needs to be adjusted to different heights or rolled along the axis to cooperate with the installation, but the existing assembly method often lacks effective means to automatically adjust the pose of the engine, which makes it very inconvenient to install many parts, in addition, the above problems also occur when the aero-engine is disassembled and repaired. SUMMARY

[0003] The purpose of the present application is to provide an assembly system for aero-engine large component butt joint, which can realize the accurate centering of aero-engine large component assembly, ensure the quality of component assembly, and the system can lift and roll the engine components and the whole machine, also solve the problem of engine pose adjustment when installing peripheral parts of the engine, improve the assembly efficiency, in addition, the system can also be used for disassembly and repair of aero-engine.

[0004] The purpose of the present application is realized by the following technical scheme:

[0005] An assembly system for aero-engine large component butt joint includes a frame, a lifting frame body, a main assembly vehicle and an auxiliary assembly vehicle, wherein the upper end of the frame is provided with the movable auxiliary assembly vehicle, and the lower side of the auxiliary assembly vehicle is provided with the telescopic sling; the lifting frame body is movably arranged in the frame; the main assembly vehicle includes a walking vehicle body and a main driven rolling mechanism, and the walking vehicle body is movably arranged at the lower side of the lifting frame body; the main driven rolling mechanism is arranged on the walking vehicle body; the lower side of the front part of the walking vehicle body is provided with a first lifting appliance, and the lower side of the rear part is provided with a second lifting appliance; the tail end of the walking vehicle body is provided with a follow-up rolling assembly, and the follow-up rolling assembly includes a follow-up roller seat which is swingable and cooperates with a follow-up rotating tool; the main driven rolling mechanism includes an arc-shaped rotating arm, a mounting rack, a rolling driving assembly and a bearing pin assembly, wherein the mounting rack is connected with the walking vehicle body; the arc-shaped rotating arm and the rolling driving assembly are arranged on the mounting rack; the arc-shaped rotating arm is driven to rotate relative to the mounting rack by the rolling driving assembly; and the lower side of the arc-shaped rotating arm is provided with the bearing pin assembly at both ends.

[0006] Each corner end of the frame is provided with a stand, and each stand is provided with a lifting driving assembly; the lifting frame body includes side beams at both sides, and the end parts of the side beams are respectively driven to lift by the corresponding lifting driving assemblies; the lifting driving assembly includes a lifting driving device, a lifting lead screw, a lifting seat, a ratchet bar and a lifting anti-falling assembly, wherein the stand is provided with an upper end seat and a lower end seat; the lifting driving device is arranged at the lower side of the lower end seat; the lifting lead screw and the ratchet bar are arranged in parallel between the upper end seat and the lower end seat; the lifting lead screw is driven to rotate by the lifting driving device; the lifting seat is sleeved on the lifting lead screw and internally provided with a lifting nut which cooperates with the lifting lead screw; the lifting anti-falling assembly is arranged at one side of the lifting seat and provided with an anti-falling block which is swingable and cooperates with the ratchet bar; and the other side of the lifting seat supports and cooperates with the corresponding end part of the corresponding side beam.

[0007] The lifting anti-falling assembly includes an anti-falling seat, an electromagnet, a push rod, an anti-falling block and a spring which are arranged in the anti-falling seat, wherein the anti-falling seat is arranged on the lifting seat; the upper end of the anti-falling block is rotatably arranged in the anti-falling seat; the electromagnet is fixed in the anti-falling seat; the push rod passes through the electromagnet and is hingedly connected with the lower end of the anti-falling block through a connecting block; the spring is sleeved on the push rod and arranged between the electromagnet and the connecting block; and the outer corner end at the lower side of the anti-falling block is engaged with the ratchet bar.

[0008] The lifting frame body includes side beams and a cross beam, wherein the side beams are movably arranged in the frame; the cross beam has both ends connected with the side beams at corresponding sides; the lower end of the cross beam is provided with a main assembly vehicle guide rail; the upper side of the walking vehicle body of the main assembly vehicle is provided with a walking wheel assembly which cooperates with the main assembly vehicle guide rail; the walking vehicle body is provided with a track clamping assembly which clamps the main assembly vehicle guide rail; and the walking vehicle body is internally provided with a walking driving assembly.

[0009] The both sides of the lower end of the crossbeam are provided with main assembly vehicle guide rails, the walking wheel assembly comprises wheel seats provided on the walking vehicle body, the both sides of the upper end of the wheel seats are provided with axial horizontal load wheels, the both sides of the lower end of the wheel seats are provided with axial horizontal anti-overturning wheels, and the both sides of the middle of the wheel seats are provided with axial vertical side guide wheels, and the main assembly vehicle guide rails are respectively arranged between the corresponding side load wheels, side guide wheels and anti-overturning wheels.

[0010] The track clamping assembly comprises a clamping seat, a vehicle body clamping driving device and clamping clamping rods, the clamping seat is arranged on the walking vehicle body, the upper ends of the two clamping clamping rods are rotatably arranged on the corresponding side walls of the clamping seat through hinge shafts, the upper ends of the clamping clamping rods are provided with clamping clamping blocks, the vehicle body clamping driving device is arranged in the clamping seat and is hingedly connected with the lower ends of the corresponding side clamping clamping rods at both ends.

[0011] The walking driving assembly comprises a walking driving device, a gear and a rack, the walking driving device is arranged on the walking vehicle body, the gear is arranged on the output shaft of the walking driving device, the rack is arranged on the crossbeam, and the gear is engaged with the rack.

[0012] The follow-up rolling assembly comprises an extension slide rail, a tail seat, a tail frame driving device, a tail frame and a follow-up roller seat, the extension slide rail is arranged at the rear end of the walking vehicle body, the tail seat is internally provided with a sliding block and a clamping rail device, the sliding block is slidingly matched with the extension slide rail, the lower side of the tail seat is provided with a lower mounting block, one end of the tail frame is hingedly connected with the lower mounting block and the other end is provided with a follow-up roller seat, one end of the tail frame driving device is hingedly connected with the upper end of the tail seat and the other end is hingedly connected with the lower end of the tail frame, the follow-up roller seat is provided with a movable roller seat, a fixed roller seat, a roller seat lead screw and a rotating driving device, the fixed roller seat is arranged on the outer side of the follow-up roller seat, the fixed roller seat is provided with a fixed roller, the movable roller seat is arranged on the inner side of the follow-up roller seat, the movable roller seat is internally provided with a roller seat nut which is sleeved on the roller seat lead screw, the roller seat lead screw is driven to rotate by the rotating driving device, and the movable roller seat is provided with a movable roller.

[0013] The mounting frame of the active rolling mechanism is provided with a rolling wheel, the arc-shaped rotating arm is provided with a rolling guide rail, and the rolling wheel upholds and clamps the rolling guide rail; the rolling driving assembly comprises a rolling driving device, a driving gear and a gear ring, the rolling driving device is arranged on the mounting frame, the driving gear is arranged on the output shaft of the rolling driving device, the gear ring is arranged on the arc-shaped rotating arm, and the driving gear is engaged with the gear ring.

[0014] The mounting frame is provided with a rotating arm embracing assembly and a rotating arm angle locking assembly, wherein the rotating arm embracing assembly comprises a mounting seat, a rotating arm embracing driving device, a transmission assembly, an embracing screw and an embracing block, the mounting seat is arranged on the mounting frame, the rotating arm embracing driving device, the transmission assembly and the embracing screw are arranged on the mounting seat, the embracing screw is driven to rotate by the rotating arm embracing driving device, the rotating arm embracing driving device transmits torque through the transmission assembly, the embracing block is sleeved on the embracing screw and is internally provided with an embracing screw nut matched with the embracing screw, and the embracing block is in contact with the rolling guide rail.

[0015] The rotating arm angle locking assembly comprises a positioning pin seat, a positioning driving device and a positioning pin, the positioning pin seat is arranged on the mounting frame, the positioning pin is arranged in the positioning pin seat in an elevatable manner, the positioning driving device is arranged on one side of the positioning pin seat, the output shaft end of the positioning driving device is connected with the tail end of the positioning pin outside the positioning pin seat through a connecting rod, and the arc-shaped rotating arm is provided with a positioning pin hole matched with the positioning pin.

[0016] The force bearing pin assembly comprises a static seat, a dynamic seat and a force bearing pin, the static seat is fixedly connected with the arc-shaped rotating arm, the dynamic seat is inserted into the static seat, the lower end of the dynamic seat is provided with a locking pin rod, the upper end of the dynamic seat is provided with the force bearing pin, the lower end of the static seat is provided with a rotating disc, the locking pin rod is arranged in the static seat and one end of the locking pin rod is arranged in a rectangular through hole in the middle of the rotating disc, the upper side and the lower side of the locking pin rod are flat edges, the left side and the right side of the locking pin rod are arc edges, the upper side of the dynamic seat is provided with a gland, one side of the gland is provided with a fastening nut, the force bearing pin is arranged in the gland after the gland is buckled, the fastening nut abuts against the rear end of the force bearing pin, and a force sensor is arranged between the static seat and the dynamic seat.

[0017] The frame of the walking vehicle body comprises a front beam, an arc-shaped frame and a rear beam which are sequentially connected from front to back, the lower side of the front beam is provided with a first lifting appliance with adjustable length, the arc-shaped frame is connected with a driving rolling mechanism, the lower side of the rear beam is provided with a second lifting appliance with adjustable length, and the tail end of the rear beam is provided with a following rolling assembly; the first lifting appliance and the second lifting appliance are the same in structure and both comprise a lifting hole screw rod and a screw rod holder, and two lifting hole screw rods are respectively threadedly inserted into the corresponding end portions of the screw rod holder.

[0018] The advantages and positive effects of the present application are as follows:

[0019] 1. The application utilizes the main assembly vehicle and the auxiliary assembly vehicle to realize the centering assembly of the aero-engine large component, wherein the moving center lines of the main assembly vehicle and the auxiliary assembly vehicle are in the same vertical plane, the main assembly vehicle drives the lifting adjustment component height through the lifting frame body, and the auxiliary assembly vehicle utilizes the lifting cable to adjust the height of the lifting adjustment component, so that the centering assembly work of the two components is conveniently completed, the front beam and the rear beam of the main assembly vehicle are provided with the lifting appliance with adjustable length to meet the component leveling requirement, so that the accurate centering of the aero-engine large component assembly is ensured, and the component assembly quality is ensured.

[0020] 2. The main assembly vehicle of the application is provided with the active rolling mechanism and the follow-up rolling assembly, wherein the active rolling mechanism cooperates with the force bearing pin assembly at both ends of the arc-shaped rotating arm to clamp and fix the component, and the arc-shaped rotating arm can rotate relatively, when the engine assembly is completed, the follow-up roller seat in the follow-up rolling assembly swings down and is embedded on the follow-up rotating tool provided at one end of the engine, so that the lifting of the engine whole body can be realized when the main assembly vehicle is lifted by the lifting frame body, and the rotating adjustment of the engine whole body can be realized by the relative rotation of the arc-shaped rotating arm, so that the pose adjustment requirement of the subsequent engine peripheral component installation can be met.

[0021] 3. The lifting driving assembly for driving the lifting frame body lifting is provided with the lifting anti-falling assembly cooperating with the ratchet bar to realize the anti-falling to ensure the work safety, in addition, the shaft end of the lifting lead screw in the lifting driving assembly can be locked by the shaft brake to further ensure the anti-falling effect, the track clamping assembly is provided on the main assembly vehicle to realize the in-place locking, the rotating arm clamping assembly and the rotating arm angle locking assembly are provided on the active rolling mechanism of the main assembly vehicle to realize the in-place locking of the arc-shaped rotating arm, so that the position of the component during the assembly can be ensured not to shift, and the assembly quality is ensured, in addition, the engine large component has eccentricity, and the pose adjustment is completed, so that the locking is required to prevent accidental rolling, and the work safety is ensured.

[0022] 4. The main assembly vehicle and the auxiliary assembly vehicle of the application utilize the walking wheel assembly and the corresponding I-shaped guide rail on the frame body to be hung and connected to ensure the stable movement, and utilize the gear and rack assembly to transmit the torque to drive the vehicle body movement to ensure the accurate controllable movement position, and the quality of the component butt joint assembly is ensured.

[0023] 5、The main assembly vehicle of the present application utilizes the load bearing pin assembly to cooperate with the clamping and fixing component, wherein the height of the load bearing pin in the load bearing pin assembly can be adjusted by the relative movement between the moving seat and the static seat, and after adjustment, the lock can be achieved by rotating the rotating disc on the static seat to lock the locking pin rod on the moving seat, and the extension length of the load bearing pin can be adjusted by the tightening nut on one side of the gland, which improves the flexibility of the present application. In addition, a force sensor is installed in the load bearing pin seat, which can sense the axial assembly force when the engine components are connected, and the system will alarm when the assembly force exceeds the limit value, preventing the engine components from being damaged, and playing a safety protection role.

[0024] 6、The extension slide rail in the follow-up rolling assembly of the present application is arranged at the rear end of the main assembly vehicle, and the tail seat in the follow-up rolling assembly is movably arranged on the extension slide rail, so that the position can be adjusted according to the length of the components, thereby further improving the flexibility of the present application. The movable roller seat and the fixed roller seat are arranged on the follow-up roller seat, wherein before the follow-up roller seat is swung down, the movable roller seat moves outward to open enough space to accommodate the follow-up rotating tool, and after the follow-up roller seat is swung down to the position, the movable roller seat moves inward to close, so that the movable roller and the fixed roller cooperate to clamp the follow-up rotating tool, thereby ensuring the accurate and reliable cooperation between the follow-up rolling assembly and the follow-up rotating tool.

[0025] 7、The main assembly vehicle, auxiliary assembly vehicle and other devices of the present application can be manually operated or automatically controlled, so that the manual, automatic or semi-automatic docking process of the aircraft engine can be selected according to actual needs, and in addition to the assembly of peripheral parts such as pipelines and power accessories, the development, improvement, verification and application of key principles and key technologies involved in the engine assembly process can also be realized through engine pose adjustment. The system of the present application is especially suitable for large aircraft engine large component docking, and can also be used for assembly of large engine peripheral parts, and can also be applied to the assembly process of small and medium-sized engines. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the present application,

[0027] Figure 2 is Figure 1 a structural schematic diagram of the middle frame,

[0028] Figure 3 is Figure 2 a structural schematic diagram of the lifting driving assembly,

[0029] Figure 4 is Figure 3 a working state diagram of the lifting anti-falling assembly Figure 1 ,

[0030] Figure 5 For Figure 3 The working state of the lifting and falling prevention assembly Figure 2 ,

[0031] Figure 6 For Figure 1 The structure diagram of the main assembly vehicle

[0032] Figure 7 For Figure 6 The structure diagram of the walking vehicle frame

[0033] Figure 8 For Figure 6 The side view of the main assembly vehicle

[0034] Figure 9 For Figure 6 The front view of the main assembly vehicle

[0035] Figure 10 For Figure 6 The structure diagram of the walking wheel assembly

[0036] Figure 11 For Figure 10 The installation diagram of the walking wheel assembly

[0037] Figure 12 For Figure 6 The structure diagram of the walking driving assembly of the main assembly vehicle

[0038] Figure 13 For Figure 6 The structure diagram of the track holding assembly

[0039] Figure 14 For Figure 8 The structure diagram of the follow-up rolling assembly at the rear end of the main assembly vehicle

[0040] Figure 15 For Figure 14 The action diagram of the follow-up rolling assembly Figure 1 ,

[0041] Figure 16 For Figure 14 The action diagram of the follow-up rolling assembly Figure 2 ,

[0042] Figure 17 For Figure 6 The structure diagram of the rolling driving assembly of the main rolling mechanism

[0043] Figure 18 For Figure 17 The structure diagram of the rear side of the rolling frame

[0044] Figure 19 for Figure 9 Schematic diagram of the structure of the middle transfer arm clamping assembly,

[0045] Figure 20 for Figure 9 Schematic diagram of the structure of the middle rotating arm angle locking assembly,

[0046] Figure 21 for Figure 6 Schematic diagram of the structure of the center bearing pin assembly,

[0047] Figure 22 for Figure 21 The main view of the center bearing pin assembly,

[0048] Figure 23a for Figure 22 Working status of the turntable Figure 1 ,

[0049] Figure 23b for Figure 22 Working status of the turntable Figure 2 ,

[0050] Figure 24 For Figure 22 Schematic diagram of the force sensor installation between the moving seat and the static seat,

[0051] Figure 25 for Figure 1 Schematic diagram of the installation position of the first sensor on the middle frame,

[0052] Figure 26 for Figure 6 Schematic diagram of the installation position of the second sensor on the main assembly vehicle,

[0053] Figure 27 for Figure 26 Schematic diagram of the safety area that each second sensor is responsible for,

[0054] Figure 28 for Figure 1 Installation diagram of auxiliary assembly vehicle,

[0055] Figure 29 The working state of the present invention is shown as follows Figure 1 ,

[0056] Figure 30 for Figure 29 The first spreader structure diagram in FIG,

[0057] Figure 31 The working state of the present invention is shown as follows Figure 2 ,

[0058] Figure 32 The working state of the present invention is shown as followsFigure 3

[0059] Figure 33 Schematic of working state of the present application Figure 4

[0060] Figure 34 Schematic of working state of the present application Figure 5

[0061] Figure 35 Schematic of working state of the present application Figure 34

[0062] Figure 36 Schematic of working state of the present application Figure 1

[0063] ​​​​​1 is a frame, 101 is an upper beam, 102 is a stand, 103 is an auxiliary beam, 2 is a lifting frame body, 201 is a lifting drive assembly, 2011 is a lifting drive device, 2012 is a lifting lead screw, 2013 is a lifting anti-falling assembly, 20131 is an electromagnet, 20132 is a push rod, 20133 is an anti-falling clamp block, 20134 is a spring, 20135 is an anti-falling seat, 20136 is a connecting block, 2014 is a ratchet bar, 2015 is an upper end seat, 2016 is a lifting seat, 2017 is a lower end seat, 202 is a side beam, 203 is a cross beam, 2031 is a main assembly vehicle guide rail, 3 is a main assembly vehicle, 4 is an auxiliary assembly vehicle, 401 is an auxiliary assembly vehicle manipulator, 402 is a sling reel motor, 5 is a main driving rolling mechanism, 501 is a bearing pin assembly, 5011 is a static seat, 5012 is a dynamic seat, 5013 is a turntable, 5014 is a fastening nut, 5015 is a gland, 5016 is a bearing pin, 5017 is a locking pin rod, 5018 is a force sensor, 502 is a rotating arm clamping assembly, 5021 is a rotating arm clamping drive device, 5022 is a driving pulley, 5023 is a transmission belt, 5024 is a driven pulley, 5025 is a clamping lead screw, 5026 is a clamping block, 5027 is a mounting seat, 503 is a rotating arm angle locking assembly, 5031 is a positioning pin seat, 5032 is a connecting rod, 5033 is a positioning drive device, 5034 is a positioning pin, 504 is a rolling drive assembly, 5041 is a rolling drive device, 5042 is a driving gear, 5043 is a gear ring, 505 is a mounting frame, 506 is an arc-shaped rotating arm, 507 is a rolling guide rail, 508 is a rolling wheel, 6 is a walking vehicle body, 601 is a walking wheel assembly, 6011 is a wheel seat, 6012 is a load wheel, 6013 is an anti-toppling wheel, 6014 is a side guide wheel, 6015 is a pin shaft, 602 is a track clamping assembly, 6021 is a clamping seat, 6022 is a vehicle body clamping drive device, 6023 is a clamping clamp rod, 6024 is a clamping clamp block, 6025 is a hinged shaft, 603 is a vehicle frame, 6031 is an arc-shaped frame, 6032 is a front beam, 6033 is a rear beam, 6034 is an illuminating lamp, 6035 is a side support rod, 6036 is a main assembly vehicle manipulator, 6037 is a hinged seat, 6038 is a first lifting appliance, 60381 is a lifting hole screw rod, 60382 is a screw rod holder, 6039 is a second lifting appliance, 604 is a follow-up rolling assembly, 6041 is an extension slide rail, 6042 is a rail clamping device, 6043 is a tail seat, 60431 is a lower mounting block, 6044 is a sliding block, 6045 is a tail frame drive device, 6046 is a tail frame, 6047 is a movable roller seat, 6048 is a roller seat lead screw, 6049 is a follow-up roller seat, 60491 is a movable roller, 60492 is a fixed roller, 605 is a walking drive assembly, 6051 is a walking drive device, 6052 is a rack, 6053 is a gear, 7 is a second sensor, 8 is a fan unit, 9 is a core machine unit, 10 is a low-pressure turbine unit, 11 is a follow-up rotating tool. DETAILED DESCRIPTION

[0064] The application will be further described in conjunction with the accompanying drawings.

[0065] As shown in the drawings, the application comprises a frame 1, a lifting frame 2, a main assembly vehicle 3 and an auxiliary assembly vehicle 4, wherein the lifting frame 2 is arranged in the frame 1 in a lifting manner, the main assembly vehicle 3 is arranged at the lower side of the lifting frame 2, the upper end of the frame 1 is provided with the auxiliary assembly vehicle 4, and as shown in the drawings, the main assembly vehicle 3 comprises a walking vehicle body 6 and a main driven rolling mechanism 5, wherein the walking vehicle body 6 is movably arranged at the lower side of the lifting frame 2, and the main driven rolling mechanism 5 is arranged on the walking vehicle body 6, as shown in the drawings, the frame 603 of the walking vehicle body 6 comprises a front beam 6032, an arc-shaped frame 6031 and a rear beam 6033 connected in sequence from front to back, wherein the lower side of the front beam 6032 is provided with a first length-adjustable lifting appliance 6038, the lower side of the rear beam 6033 is provided with a second length-adjustable lifting appliance 6039, and the tail end of the rear beam 6033 is provided with a follow-up rolling assembly 604, as shown in the drawings, the follow-up rolling assembly 604 comprises a follow-up rolling wheel seat 6049 which can swing, and as shown in the drawings, Figures 1 to 36 Figures 6 to 24 Figures 7 to 8 Figures 14 to 16 Figure 6 , Figure 9 and Figures 17 to 24 As shown in the drawings, the main driven rolling mechanism 5 comprises an arc-shaped rotating arm 506, a mounting frame 505, a rolling driving assembly 504 and a force bearing pin assembly 501, wherein the mounting frame 505 is connected with the arc-shaped frame 6031 of the walking vehicle body 6, the arc-shaped rotating arm 506 and the rolling driving assembly 504 are both arranged on the mounting frame 505, the arc-shaped rotating arm 506 is driven to rotate relative to the mounting frame 505 through the rolling driving assembly 504, and the lower side of both ends of the arc-shaped rotating arm 506 is provided with the force bearing pin assembly 501.

[0066] As shown in the drawings, Figures 29 to 35 ​​​​As shown, in an application example of the present invention, the large aircraft engine components to be assembled include a fan unit 8, a core unit 9 and a low-pressure turbine unit 10, and during assembly, the fan unit 8 is hoisted on the main assembly vehicle 3 through the first hoist 6038 on the lower side of the front beam 6032 of the walking vehicle body 6, and at the same time, the load-bearing pin assemblies 501 at both ends of the lower side of the arc-shaped rotating arm 506 of the active rolling mechanism 5 cooperate to clamp and position the fan unit 8 from both sides, and the core unit 9 is hoisted by the auxiliary assembly vehicle 4, and the moving center lines of the main assembly vehicle 3 and the auxiliary assembly vehicle 4 are in the same vertical plane to ensure the centering of the components, wherein the lifting frame 2 cooperates with the lifting to adjust the height of the main assembly vehicle 3, thereby adjusting the height of the fan unit 8, and the auxiliary assembly The distribution vehicle 4 is provided with a sling, and the auxiliary assembly vehicle 4 adjusts the height of the core engine unit 9 through the telescopic cooperation of the sling. After the center heights of the two units are detected and adjusted to be aligned through the auxiliary detection tool, the main assembly vehicle 3 and the auxiliary assembly vehicle 4 cooperate to move and complete the docking installation of the fan unit 8 and the core engine unit 9. After installation, the core engine unit 9 is assisted by the second sling 6039 on the lower side of the rear beam 6033 of the walking vehicle body 6 to ensure that it is level. Then the low-pressure turbine unit 10 is hoisted by the auxiliary assembly vehicle 4 and the above process is repeated to achieve the docking installation of the core engine unit 9 and the low-pressure turbine unit 10. After the installation is completed, the outer side of the low-pressure turbine unit 10 is provided with an arc-shaped follow-up rotating tooling 11. At this time, Figures 34 to 35 As shown, the follower roller seat 6049 of the follower rolling assembly 604 swings downward and fits onto the follower rotating fixture 11. The worker then removes the various slings. This allows the curved rotating arm 506 in the active rolling mechanism 5 to rotate the fan unit 8 via the rolling drive assembly 504. The core unit 9 and the low-pressure turbine unit 10 also rotate together, meaning the entire engine rotates together. The follower rotating fixture 11 on the outside of the low-pressure turbine unit 10 rotates along the follower roller seat 5. Furthermore, the lifting frame 2 adjusts the overall height of the engine as it is raised or lowered, thereby meeting the position adjustment requirements for subsequent installation of peripheral engine components. The follower rotating fixture 11 is well known in the art.

[0067] like Figures 1 to 5 As shown, in this embodiment, each corner end of the frame 1 is provided with a column 102, and each column 102 is provided with a lifting drive assembly 201, and the lifting frame 2 includes side beams 202 on both sides, and the ends of the side beams 202 are driven to rise and fall by corresponding lifting drive assemblies 201, wherein Figure 3As shown, the lifting driving assembly 201 comprises a lifting driving device 2011, a lifting screw 2012, a lifting seat 2016, a ratchet bar 2014 and a lifting anti-falling assembly 2013, the column 102 is provided with an upper end seat 2015 and a lower end seat 2017, the lifting driving device 2011 is arranged at the lower side of the lower end seat 2017, the lifting screw 2012 and the ratchet bar 2014 are arranged in parallel between the upper end seat 2015 and the lower end seat 2017, and the lifting screw 2012 is driven to rotate by the lifting driving device 2011, the lifting seat 2016 is sleeved on the lifting screw 2012, and a lifting screw nut is arranged in the lifting seat 2016 and matched with the lifting screw 2012, the lifting anti-falling assembly 2013 is arranged at one side of the lifting seat 2016 and matched with the ratchet bar 2014, the other side of the lifting seat 2016 supports the corresponding end of the corresponding side beam 202, and the rotation of the lifting screw 2012 drives the lifting seat 2016 to lift, thereby driving the lifting frame body 2 to lift. In the embodiment, the lifting driving device 2011 can adopt a servo motor.

[0068] As shown, Figures 4 to 5 In the embodiment, the lifting anti-falling assembly 2013 comprises an anti-falling seat 20135, an electromagnet 20131, a push rod 20132, an anti-falling clamping block 20133 and a spring 20134 arranged in the anti-falling seat 20135, wherein the anti-falling seat 20135 is arranged on the lifting seat 2016, the upper end of the anti-falling clamping block 20133 is rotatably arranged in the anti-falling seat 20135, the electromagnet 20131 is fixed in the anti-falling seat 20135, the push rod 20132 is hinged to the lower end of the anti-falling clamping block 20133 through a connecting block 20136 after passing through the electromagnet 20131, and the spring 20134 is sleeved on the push rod 20132 and arranged between the electromagnet 20131 and the connecting block 20136. When the electromagnet 20131 is electrified, the push rod 20132 is attracted, at this time, as shown, Figure 4 the push rod 20132 drives the anti-falling clamping block 20133 to separate from the ratchet bar 2014, and the lifting frame body 2 can freely lift, and when the lifting frame body 2 is lifted to the position, the electromagnet 20131 is de-energized, at this time, as shown, Figure 5 the push rod 20132 pushes the lower side of the anti-falling clamping block 20133 to engage with the ratchet bar 2014 to achieve locking under the driving of the spring 20134.

[0069] In addition, in the embodiment, a shaft brake can be arranged in the upper end seat 2015 as needed, when falling danger occurs, the shaft brake can tightly hold the shaft end of the lifting screw 2012 to achieve locking, thereby further ensuring the anti-falling effect, and the shaft brake is a publicly known technology and a commercially available product.

[0070] AsFigure 2 As shown in the drawings, in this embodiment, the lifting frame body 2 comprises a cross beam 203, and the cross beam 203 is connected with the side beams 202 on the corresponding sides respectively. Figure 11 As shown in the drawings, the lower end of the cross beam 203 is provided with a main assembly vehicle guide rail 2031, and as shown in the drawings, Figure 6 and Figure 10 As shown in the drawings, the upper side of the walking vehicle body 6 of the main assembly vehicle 3 is provided with a walking wheel assembly 601 matched with the main assembly vehicle guide rail 2031.

[0071] As shown in the drawings, Figure 6 and Figures 10 to 11 In this embodiment, the cross beam 203 is an I-beam structure, the lower ends of both sides of the cross beam 203 are provided with main assembly vehicle guide rails 2031, the walking wheel assembly 601 comprises a wheel seat 6011, the inner sides of both sides of the upper end of the wheel seat 6011 are provided with axially horizontal load wheels 6012, the inner sides of both sides of the lower end of the wheel seat 6011 are provided with axially horizontal anti-overturning wheels 6013, the both sides of the middle part of the wheel seat 6011 are provided with axially vertical side guide wheels 6014, and the main assembly vehicle guide rail 2031 is arranged between the corresponding side load wheels 6012, side guide wheels 6014 and anti-overturning wheels 6013 respectively, so that the walking wheel assembly 601 is hung on the main assembly vehicle guide rail 2031 on the corresponding side of the lower end of the cross beam 203 respectively, and has better moving stability. In addition, as shown in the drawings, Figure 7 In this embodiment, the upper side of the frame 603 of the walking vehicle body 6 is provided with a plurality of hinged seats 6037, as shown in the drawings, Figure 10 As shown in the drawings, the lower end of the wheel seat 6011 is provided with a pin shaft 6015 installed on the corresponding hinged seat 6037.

[0072] As shown in the drawings, Figure 6 In this embodiment, the upper side of the walking vehicle body 6 is also provided with a track clamping assembly 602 to realize the position locking of the walking vehicle body 6, as shown in the drawings, Figure 13 As shown in the drawings, the track clamping assembly 602 comprises a clamping seat 6021, a vehicle body clamping driving device 6022 and a clamping clamp rod 6023, the clamping seat 6021 is arranged on the rear beam 6033 of the corresponding side of the frame 603, the upper ends of the two clamping clamp rods 6023 are rotatably installed on the corresponding side walls of the clamping seat 6021 through hinged shafts 6025 respectively, the upper end of the clamping clamp rod 6023 is provided with a clamping clamp block 6024, the vehicle body clamping driving device 6022 is arranged in the clamping seat 6021 and is hinged with the lower ends of the clamping clamp rods 6023 on the corresponding sides respectively, the vehicle body clamping driving device 6022 is extended or retracted to drive the clamping clamp rods 6023 on both sides to rotate and open or close, and the clamping clamp block 6024 closes the main assembly vehicle guide rail 2031 to realize locking. The vehicle body clamping driving device 6022 can adopt a hydraulic cylinder or the like.

[0073] AsFigure 12 As shown, a travel drive assembly 605 is provided under the rear beam 6033 on either side of the frame 603 of the travel vehicle body 6. In this embodiment, the travel drive assembly 605 includes a travel drive device 6051, a gear 6053, and a rack 6052. The gear 6053 is provided on the output shaft of the travel drive device 6051, and the rack 6052 is provided on the crossbeam 203. The gear 6053 meshes with the rack 6052. The travel drive device 6051 can be a reduction servo motor or other device.

[0074] like Figures 14 to 16 As shown, in this embodiment, the follower rolling assembly 604 includes an extension rail 6041, a tailstock 6043, a tailstock driving device 6045, a tailstock 6046 and a follower roller seat 6049, wherein the extension rail 6041 is provided on the rear beam 6033 on the corresponding side of the frame 603, and a slider 6044 and a rail clamp 6042 are provided in the tailstock 6043, wherein the slider 6044 is slidably matched with the extension rail 6041, so that the tailstock 6043 can move along the extension rail 6041 as needed. The rail clamp 6042 is used to clamp the extension rail 6041 to achieve locking. The rail clamp 6042 is a well-known technology in the art and is a commercially available product. The tailstock 6043 can be manually or automatically controlled according to needs. The manual control mode is to manually push the tailstock 6043 to move after the rail clamp 6042 is opened. The automatic control mode is to provide a telescopic drive device such as a hydraulic cylinder on the frame 603. The telescopic drive device is connected to the tailstock 6043 and drives it to move. Figure 15 As shown, a lower mounting block 60341 is provided on the lower side of the tailstock 6043, and one end of the tailstock 6046 is hinged to the lower mounting block 60341, and the other end is provided with the follower roller seat 6049. One end of the tailstock driving device 6045 is hinged to the upper end of the tailstock 6043, and the other end is hinged to the lower end of the tailstock 6046. The tailstock driving device 6045 is extended and retracted to drive the tailstock 6046 to swing, thereby driving the follower roller seat 6049 to swing. The tailstock driving device 6045 can be a hydraulic cylinder or other device.

[0075] like Figure 14As shown, in this embodiment, the follower roller seat 6049 is provided with a movable roller seat 6047, a fixed roller seat, a roller seat screw 6048 and a rotation drive device, wherein the fixed roller seat is arranged on the outside of the follower roller seat 6049, and the fixed roller seat is provided with a fixed roller 60492, the movable roller seat 6047 is arranged on the inside of the follower roller seat 6049, and the inside of the movable roller seat 6047 is provided with a roller seat nut sleeved on the roller seat screw 6048, the roller seat screw 6048 is driven to rotate by the rotation drive device, and then drives the movable roller seat 6047 to move inward or outward, and the movable roller seat 6047 is provided with a movable roller 60491. When the present invention is in operation, the movable roller seat 6047 first moves outward to ensure that there is sufficient space between it and the fixed roller seat to accommodate the follower rotary tooling 11. After the follower roller seat 6049 swings into position, the movable roller seat 6047 moves inward to allow the movable roller 60491 and the fixed roller 60492 to cooperate and clamp the follower rotary tooling 11. The rotation drive device can be a servo motor or other device.

[0076] like Figures 17 to 18 As shown, in this embodiment, a rolling wheel 508 is provided on the mounting frame 505 of the active rolling mechanism 5, and a rolling guide rail 507 is provided on the arc-shaped rotating arm 506, and each rolling wheel 508 clamps the rolling guide rail 507 up and down, thereby realizing the relative rotation of the mounting frame 505 and the arc-shaped rotating arm 506.

[0077] like Figures 17 to 18 As shown, in this embodiment, the roll drive assembly 504 includes a roll drive device 5041, a drive gear 5042, and a ring gear 5043. The roll drive device 5041 is disposed on the mounting frame 505, the drive gear 5042 is disposed on the output shaft of the roll drive device 5041, and the ring gear 5043 is disposed on the arc-shaped rotating arm 506. The drive gear 5042 and the ring gear 5043 are engaged with each other. The roll drive device 5041 drives the arc-shaped rotating arm 506 to rotate relative to the mounting frame 505 through the drive gear 5042 and the ring gear 5043. The roll drive device 5041 can be a reduction motor or other device.

[0078] like Figure 6 As shown, in this embodiment, the mounting frame 505 is provided with a rotating arm clamping assembly 502 for clamping and clamping the rolling guide rail 507 to achieve locking. In addition, the mounting frame 505 is also provided with a rotating arm angle locking assembly 503, as shown in FIG. Figure 20 As shown, the rotating arm angle locking assembly is provided with a positioning pin 5034 which is inserted into the positioning pin hole provided on the arc-shaped rotating arm 506 to further achieve accurate angle locking.

[0079] like Figure 19 As shown, in this embodiment, the swing arm clamping assembly 502 includes a mounting seat 5027, a swing arm clamping drive device 5021, a transmission assembly, a clamping screw 5025 and a clamping block 5026, wherein the mounting seat 5027 is arranged on the mounting frame 505, the swing arm clamping drive device 5021, the transmission assembly and the clamping screw 5025 are all arranged on the mounting seat 5027, and the clamping screw 5025 is driven to rotate by the swing arm clamping drive device 5021, and the swing arm clamping drive device 5021 transmits torque through the transmission assembly, the clamping block 5026 is mounted on the clamping screw 5025 and is provided with a clamping nut inside to cooperate with the clamping screw 5025, and the rotation of the clamping screw 5025 drives the clamping block 5026 to rise and continuously press the lower side of the rolling guide rail 507, thereby utilizing friction to achieve locking. In this embodiment, the transmission assembly includes a driving pulley 5022, a driven pulley 5024, and a transmission belt 5023. The driving pulley 5022 is provided on the output shaft of the rotating arm clamping drive device 5021, and the driven pulley 5024 is provided at the shaft end of the clamping screw 5025. The driving pulley 5022 and the driven pulley 5024 are connected by a transmission belt 5023. The rotating arm clamping drive device 5021 can be a servo motor or other device.

[0080] like Figure 20 As shown, in this embodiment, the swing arm angle locking assembly 503 includes a positioning pin seat 5031, a positioning drive device 5033, and a positioning pin 5034. The positioning pin seat 5031 is provided on the mounting frame 505, and the positioning pin 5034 is arranged in the positioning pin seat 5031 so as to be liftable. The positioning drive device 5033 is provided on one side of the positioning pin seat 5031, and the output shaft end of the positioning drive device 5033 is connected to the tail end of the positioning pin 5034 located outside the positioning pin seat 5031 via a connecting rod 5032. In this way, the positioning drive device 5033 extends and retracts to drive the positioning pin 5034 to move up and down. The positioning drive device 5033 can be a device such as an electric push rod.

[0081] like Figures 21 to 24 As shown, in this embodiment, the load-bearing pin assembly 501 includes a stationary seat 5011, a dynamic seat 5012 and a load-bearing pin 5016, wherein the stationary seat 5011 is fixedly connected to the arc-shaped rotating arm 506, the dynamic seat 5012 is inserted into the stationary seat 5011, and the lower end of the dynamic seat 5012 is provided with a locking pin rod 5017 and the upper end is provided with a load-bearing pin 5016, the lower end of the stationary seat 5011 is provided with a rotating disk 5013, and as shown Figures 22 to 23bAs shown, the locking pin rod 5017 is arranged in the static seat 5011 and one end is arranged in the rectangular through hole in the middle of the rotating disc 5013. The upper and lower sides of the locking pin rod 5017 are flat, and the left and right sides of the locking pin rod 5017 are arc-shaped. When the locking pin rod 5017 is in the position shown in the figure, the flat sides of the upper and lower sides of the locking pin rod 5017 leave a gap with the hole wall of the rectangular through hole in the middle of the rotating disc 5013, so that the moving seat 5012 can move within the static seat 5011 to a certain extent, thereby realizing the longitudinal fine adjustment of the position of the load bearing pin 5016 on the upper side of the moving seat 5012. When the rotating disc 5013 is rotated to the position shown in the figure, the side wall of the through hole in the middle of the rotating disc 5013 clamps the arc-shaped sides of the left and right sides of the locking pin rod 5017 to lock the moving seat 5012. In addition, as shown in the figure, the static seat 5011 and the moving seat 5012 are provided with a force sensor 5018. When the engine main parts are connected, the force sensor 5018 can sense the axial assembly force. When the assembly force exceeds the limited value, the system alarms to prevent the engine parts from being damaged and to play a safety protection role. The force sensor 5018 is a commonly known technology in the art and is a commercially available product. Figure 23a Figure 23b As shown in the figure, the static seat 5011 and the moving seat 5012 are provided with a force sensor 5018. When the engine main parts are connected, the force sensor 5018 can sense the axial assembly force. When the assembly force exceeds the limited value, the system alarms to prevent the engine parts from being damaged and to play a safety protection role. The force sensor 5018 is a commonly known technology in the art and is a commercially available product. Figure 24

[0082] As shown in the figure, the static seat 5011 and the moving seat 5012 are provided with a force sensor 5018. When the engine main parts are connected, the force sensor 5018 can sense the axial assembly force. When the assembly force exceeds the limited value, the system alarms to prevent the engine parts from being damaged and to play a safety protection role. The force sensor 5018 is a commonly known technology in the art and is a commercially available product. Figure 21 As shown in the figure, the static seat 5011 and the moving seat 5012 are provided with a force sensor 5018. When the engine main parts are connected, the force sensor 5018 can sense the axial assembly force. When the assembly force exceeds the limited value, the system alarms to prevent the engine parts from being damaged and to play a safety protection role. The force sensor 5018 is a commonly known technology in the art and is a commercially available product.

[0083] Figure 6 As shown in the figure, the static seat 5011 and the moving seat 5012 are provided with a force sensor 5018. When the engine main parts are connected, the force sensor 5018 can sense the axial assembly force. When the assembly force exceeds the limited value, the system alarms to prevent the engine parts from being damaged and to play a safety protection role. The force sensor 5018 is a commonly known technology in the art and is a commercially available product. Figure 8 Figure 1 As shown in the figure, the static seat 5011 and the moving seat 5012 are provided with a force sensor 5018. When the engine main parts are connected, the force sensor 5018 can sense the axial assembly force. When the assembly force exceeds the limited value, the system alarms to prevent the engine parts from being damaged and to play a safety protection role. The force sensor 5018 is a commonly known technology in the art and is a commercially available product. Figure 28 Figure 36 ​​​​​As shown, in this embodiment, the upper beam 101 also adopts an I-beam structure, and auxiliary assembly vehicle guide rails are provided on both sides of its lower end, and the upper end of the auxiliary assembly vehicle 4 is provided with an auxiliary walking wheel assembly that is the same as the main assembly vehicle 3, and the wheel groups on both sides of the auxiliary walking wheel assembly are respectively hung on the auxiliary assembly vehicle guide rails on both sides of the lower end of the upper beam 101, so as to ensure smooth movement, and the auxiliary assembly vehicle 4 is provided with a sling drum and a sling drum motor 402, the sling is wound on the sling drum, and the sling drum is driven to rotate by the sling drum motor 402 to realize the contraction and release of the sling, thereby realizing the height adjustment of the component.

[0084] In addition, Figure 30 As shown, in this embodiment, the first sling 6038 and the second sling 6039 have the same structure, both of which include a lifting hole screw 60381 and a screw rack 60382, and the two lifting hole screws 60381 are respectively threadedly inserted into the corresponding ends of the screw rack 60382. By screwing the lifting hole screw 60381, the length of the screw exposed from the screw rack 60382 can be changed, that is, the overall length of the sling can be changed, thereby realizing operations such as adjusting the posture of the workpiece.

[0085] like Figure 25 As shown, in this embodiment, each column 102 of the frame 1 is provided with a first sensor at the lower end A. The first sensor can perform a real-time, no-blind-angle scan of obstacles and personnel under the engine to determine whether there are people or objects in a certain area. Figures 26 to 27 As shown, the main assembly vehicle 3 is equipped with second sensors 7 at the front, middle, and rear ends. These sensors detect the presence of people or objects in the areas in front of, in between, and behind the workpiece. If a person or object is detected, the entire system is locked and rendered inoperable to prevent potential danger. These first and second sensors 7 can be laser scanning sensors, which are well known in the art and commercially available.

[0086] The working principle of the present invention is:

[0087] When the present invention is assembled, Figure 29 As shown, the fan unit 8 is first hoisted on the main assembly vehicle 3 through the first hoist 6038 on the lower side of the front beam 6032 of the walking vehicle body 6, and the load-bearing pin assemblies 501 at both ends of the lower side of the arc-shaped rotating arm 506 of the active rolling mechanism 5 clamp and position the fan unit 8 from both sides. The length of the first hoist 6038 is adjustable to ensure that the fan unit 8 is axially horizontal. The fan unit 8 is adjusted in height by lifting and lowering the lifting frame 2. Figure 31As shown, the core engine unit 9 is hoisted by the auxiliary assembly vehicle 4 and the height is adjusted by the sling thereon, when the center height of the two units is adjusted and aligned by the auxiliary detection tool, the main assembly vehicle 3 and the auxiliary assembly vehicle 4 are moved in cooperation to complete the assembly, and after installation, the core engine unit 9 is hoisted by the second lifting tool 6039 under the rear beam 6033 of the walking vehicle body 6 to assist in hoisting and ensure the horizontal, the second lifting tool 6039 is also adjustable in length, then the low-pressure turbine unit 10 is hoisted by the auxiliary assembly vehicle 4 and the height is adjusted, then the above process is repeated to complete the assembly, and after installation, the low-pressure turbine unit 10 is provided with an arc-shaped follow-up rotating tool 11 on the outside, at this time, as shown Figures 34 to 35 As shown, the follow-up roller seat 6049 of the follow-up rolling assembly 604 swings downward and is embedded on the follow-up rotating tool 11, then the workers remove the lifting tools, so that when the arc-shaped rotating arm 506 in the driving rolling mechanism 5 is driven to rotate the fan unit 8 by the rolling driving assembly 504, the core engine unit 9 and the low-pressure turbine unit 10 also rotate together, that is, the engine as a whole rotates, at this time, the follow-up rotating tool 11 on the outside of the low-pressure turbine unit 10 rotates along the follow-up roller seat 5, in addition, the lifting frame body 2 can drive the engine as a whole to adjust the height, thereby meeting the pose adjustment requirements when the subsequent peripheral parts of the engine are installed.

Claims

1. An assembly system for interfacing major components of an aeroengine, characterized in that: The utility model relates to a kind of assembly vehicle, including frame (1), lifting frame body (2), main assembly car (3) and auxiliary assembly car (4), wherein frame (1) upper end is equipped with movable auxiliary assembly car (4), and auxiliary assembly car (4) lower side is equipped with telescopic sling, lifting frame body (2) is liftable and is equipped in frame (1) inside, main assembly car (3) includes walking car body (6) and active roll mechanism (5), and the walking car body (6) is movably equipped in lifting frame body (2) lower side, active roll mechanism (5) is equipped in the walking car body (6), the walking car body (6) front lower side is equipped with first lifting appliance (6038), rear lower side is equipped with second lifting appliance (6039), the walking car body (6) tail end is equipped with follow-up roll assembly (604), and the follow-up roll assembly (604) includes swingable and with follow-up rotary tooling (11) cooperation follow-up roller seat (6049), the active roll mechanism (5) includes arc-shaped rotating arm (506), mounting bracket (505), roll drive assembly (504) and force pin assembly (501), wherein mounting bracket (505) is connected with walking car body (6), arc-shaped rotating arm (506) and roll drive assembly (504) are both equipped on the mounting bracket (505), and arc-shaped rotating arm (506) is driven to rotate relative to mounting bracket (505) by roll drive assembly (504), arc-shaped rotating arm (506) lower side both ends are equipped with force pin assembly (501); The frame (1) each corner end is equipped with stand (102), and the stand (102) is equipped with lifting drive assembly (201) on each, the lifting frame body (2) includes side beam (202) on both sides, and the side beam (202) end is driven to lift respectively by corresponding lifting drive assembly (201);The lifting drive assembly (201) includes lifting drive device (2011), lifting lead screw (2012), lifting seat (2016), ratchet bar (2014) and lifting anti-falling assembly (2013), wherein the stand (102) is equipped with upper end seat (2015) and lower end seat (2017), the lifting drive device (2011) is equipped in the lower end seat (2017) lower side, the lifting lead screw (2012) and ratchet bar (2014) are parallelly equipped between upper end seat (2015) and lower end seat (2017), and the lifting lead screw (2012) is driven to rotate by the lifting drive device (2011), the lifting seat (2016) is sleeved on the lifting lead screw (2012) and is equipped with lifting nut in the inside and is matched with the lifting lead screw (2012), the lifting anti-falling assembly (2013) is equipped in one side of the lifting seat (2016) and is equipped with the anti-falling block (20133) that can swing and is matched with the ratchet bar (2014), the other side of the lifting seat (2016) and the corresponding end of corresponding side beam (202) are supported and cooperated The lifting frame body (2) comprises side beams (202) and cross beams (203), wherein the side beams (202) are arranged in the frame (1) in a lifting manner, the cross beams (203) are connected with the side beams (202) of the corresponding sides at two ends, the lower end of the cross beam (203) is provided with a main assembly vehicle guide rail (2031), the upper side of the walking vehicle body (6) of the main assembly vehicle (3) is provided with a walking wheel assembly (601) matched with the main assembly vehicle guide rail (2031), and the walking vehicle body (6) is provided with a track clamping assembly (602) for clamping the main assembly vehicle guide rail (2031), and the walking vehicle body (6) is provided with a walking driving assembly (605) inside. The follow-up rolling assembly (604) comprises an extension slide rail (6041), a tailstock (6043), a tailstock driving device (6045), a tailstock (6046) and a follow-up roller seat (6049), wherein the extension slide rail (6041) is arranged at the rear end of the walking vehicle body (6), the tailstock (6043) is provided with a sliding block (6044) and a track clamping device (6042) inside, the sliding block (6044) is in sliding fit with the extension slide rail (6041), the lower side of the tailstock (6043) is provided with a lower mounting block (60341), one end of the tailstock (6046) is hinged with the lower mounting block (60341), the other end is provided with a follow-up roller seat (6049), one end of the tailstock driving device (6045) is hinged with the upper end of the tailstock (6043), the other end is hinged with the lower end of the tailstock (6046); the follow-up roller seat (6049) is provided with a movable roller seat (6047), a fixed roller seat, a roller seat lead screw (6048) and a rotating driving device, wherein the fixed roller seat is arranged outside the follow-up roller seat (6049), the fixed roller seat is provided with a fixed roller (60492), the movable roller seat (6047) is arranged inside the follow-up roller seat (6049), the movable roller seat (6047) is provided with a roller seat nut inside, the roller seat nut is sleeved on the roller seat lead screw (6048), the roller seat lead screw (6048) is driven to rotate by the rotating driving device, and the movable roller seat (6047) is provided with a movable roller (60491). The mounting frame (505) of the active rolling mechanism (5) is provided with a rolling wheel (508), the arc-shaped rotating arm (506) is provided with a rolling guide rail (507), and the rolling wheel (508) clamps the rolling guide rail (507) upward and downward; the rolling driving assembly (504) comprises a rolling driving device (5041), a driving gear (5042) and a gear ring (5043), wherein the rolling driving device (5041) is arranged on the mounting frame (505), the driving gear (5042) is arranged on the output shaft of the rolling driving device (5041), the gear ring (5043) is arranged on the arc-shaped rotating arm (506), and the driving gear (5042) is in mesh with the gear ring (5043).

2. The assembly system for aerospace engine major component interfacing according to claim 1, characterized in that: The anti-falling assembly (2013) comprises an anti-falling seat (20135), an electromagnet (20131), a push rod (20132), an anti-falling block (20133) and a spring (20134) arranged in the anti-falling seat (20135), wherein the anti-falling seat (20135) is arranged on the lifting seat (2016), the upper end of the anti-falling block (20133) is rotatably arranged in the anti-falling seat (20135), the electromagnet (20131) is fixed in the anti-falling seat (20135), the push rod (20132) is connected to the lower end of the anti-falling block (20133) through a connecting block (20136) after passing through the electromagnet (20131), the spring (20134) is sleeved on the push rod (20132) and arranged between the electromagnet (20131) and the connecting block (20136), and the outer corner end on the lower side of the anti-falling block (20133) is engaged with the ratchet rack (2014).

3. The assembly system for aerospace engine major component interfacing of claim 1, wherein: The main assembly vehicle guide rail (2031) is arranged on the both sides of the lower end of the cross beam (203), the walking wheel assembly (601) comprises a wheel seat (6011) arranged on the walking vehicle body (6), the both sides of the inner upper end of the wheel seat (6011) are provided with axially horizontal load wheels (6012), the both sides of the inner lower end of the wheel seat (6011) are provided with axially horizontal anti-overturning wheels (6013), the both sides of the middle part of the wheel seat (6011) are provided with axially vertical side guide wheels (6014), and the main assembly vehicle guide rail (2031) is arranged between the corresponding side load wheels (6012), side guide wheels (6014) and anti-overturning wheels (6013) respectively. The track clamping assembly (602) comprises a clamping seat (6021), a vehicle body clamping driving device (6022) and a clamping clamp rod (6023), wherein the clamping seat (6021) is arranged on the walking vehicle body (6), the upper ends of the two clamping clamp rods (6023) are rotatably installed on the corresponding side walls of the clamping seat (6021) through hinge shafts (6025), the upper ends of the clamping clamp rods (6023) are provided with clamping clamp blocks (6024), and the vehicle body clamping driving device (6022) is arranged in the clamping seat (6021) and hingedly connected to the lower ends of the corresponding side clamping clamp rods (6023). The walking driving assembly (605) comprises a walking driving device (6051), a gear (6053) and a rack (6052), wherein the walking driving device (6051) is arranged on the walking vehicle body (6), the gear (6053) is arranged on the output shaft of the walking driving device (6051), the rack (6052) is arranged on the cross beam (203), and the gear (6053) is engaged with the rack (6052).

4. The assembly system for aerospace engine major component interfacing of claim 1, wherein: The mounting frame (505) is provided with a rotating arm embracing assembly (502) and a rotating arm angle locking assembly (503), wherein the rotating arm embracing assembly (502) comprises a mounting seat (5027), a rotating arm embracing driving device (5021), a transmission assembly, an embracing screw (5025) and an embracing block (5026), the mounting seat (5027) is arranged on the mounting frame (505), the rotating arm embracing driving device (5021), the transmission assembly and the embracing screw (5025) are arranged on the mounting seat (5027), the embracing screw (5025) is driven to rotate by the rotating arm embracing driving device (5021), the rotating arm embracing driving device (5021) transmits torque through the transmission assembly, the embracing block (5026) is sleeved on the embracing screw (5025) and is internally provided with an embracing screw nut matched with the embracing screw (5025), and the embracing block (5026) is in close contact with the rolling guide rail (507); The rotating arm angle locking assembly (503) comprises a positioning pin seat (5031), a positioning driving device (5033) and a positioning pin (5034), wherein the positioning pin seat (5031) is arranged on the mounting frame (505), the positioning pin (5034) is arranged in the positioning pin seat (5031) in an elevatable manner, the positioning driving device (5033) is arranged on one side of the positioning pin seat (5031), and an output shaft end of the positioning driving device (5033) is connected with a tail end of the positioning pin (5034) located outside the positioning pin seat (5031) through a connecting rod (5032), and the arc-shaped rotating arm (506) is provided with a positioning pin hole matched with the positioning pin (5034).

5. The assembly system for aerospace engine major component interfacing of claim 1, wherein: The force bearing pin assembly (501) comprises a static seat (5011), a dynamic seat (5012) and a force bearing pin (5016), wherein the static seat (5011) is fixedly connected with the arc-shaped rotating arm (506), the dynamic seat (5012) is inserted into the static seat (5011), the lower end of the dynamic seat (5012) is provided with a locking pin rod (5017), and the upper end of the dynamic seat (5012) is provided with the force bearing pin (5016), the lower end of the static seat (5011) is provided with a rotating disc (5013), the locking pin rod (5017) is arranged in the static seat (5011) and one end of the locking pin rod (5017) is arranged in a rectangular through hole in the middle of the rotating disc (5013), the upper side and the lower side of the locking pin rod (5017) are flat, and the left side and the right side of the locking pin rod (5017) are arc-shaped, the upper side of the dynamic seat (5012) is provided with a gland (5015), one side of the gland (5015) is provided with a fastening nut (5014), the force bearing pin (5016) is arranged in the gland (5015) after the gland (5015) is buckled, and the fastening nut (5014) abuts against the rear end of the force bearing pin (5016).

6. The assembly system for aerospace engine major component interfacing of claim 1, wherein: The frame (603) of the walking vehicle body (6) comprises a front beam (6032), an arc-shaped frame (6031) and a rear beam (6033) connected in sequence from front to back, the lower side of the front beam (6032) is provided with a first lifting appliance (6038) with adjustable length, the arc-shaped frame (6031) is connected with the driving rolling mechanism (5), the lower side of the rear beam (6033) is provided with a second lifting appliance (6039) with adjustable length, and the tail end of the rear beam (6033) is provided with a follow-up rolling assembly (604); the first lifting appliance (6038) and the second lifting appliance (6039) are the same in structure, and each comprises a lifting hole screw rod (60381) and a screw rod frame (60382), and the two lifting hole screw rods (60381) are respectively threadedly inserted into the corresponding end portions of the screw rod frame (60382).

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