A hanging posture adjusting device for assembling an aero-engine

Abstract

This invention relates to a suspension and attitude adjustment device for aircraft engine assembly, belonging to the field of lifting machinery technology. It includes: a main fixed frame as a load-bearing foundation; a lifting and rolling frame movably mounted on the main fixed frame; a lifting drive device installed between the main fixed frame and the lifting and rolling frame for driving the vertical lifting and lowering of the lifting and rolling frame; a safety redundancy device installed on the main fixed frame for providing braking clamping in case of abnormal lifting or stationary conditions; a rolling mechanism installed on the lifting and rolling frame for driving the engine to roll circumferentially; and a driving travel mechanism installed on the main fixed frame for moving the entire device along a travel track. This invention integrates multiple functions such as travel, lifting, and rolling, achieving high-precision attitude adjustment while ensuring safety throughout the process and data visualization.

Description

Technical Field

[0001] This invention belongs to the field of lifting machinery technology, and particularly relates to a hoisting and attitude adjustment device for aircraft engine assembly. Background Technology

[0002] During the assembly or maintenance of aero engines, precise positional adjustments are required, including horizontal movement, vertical ascent and descent, and circumferential rolling, to meet the demands of docking, assembly, inspection, and maintenance. Due to the complex structure, heavy weight, and high precision requirements of aero engines, the safety, stability, and control accuracy of their attitude adjustment equipment directly impact assembly quality and operational safety.

[0003] Current engine mounting and attitude adjustment equipment suffers from the following shortcomings: First, the lifting mechanism has poor safety: it often uses a single drive method for lifting, lacking effective safety redundancy protection. In the event of an emergency power outage or drive failure, there is a risk of the engine falling or slipping, posing a significant safety hazard. Second, the rolling mechanism has low positioning accuracy: traditional rolling mechanisms often use ordinary bearings or chain drives, resulting in insufficient guiding accuracy and difficulty in accurately locking the engine in multiple postures, affecting the reliability of docking and assembly. Third, the functional integration is low: existing equipment often disperses functional modules such as walking, lifting, and rolling, resulting in high structural redundancy, large space occupation, and poor coordination between modules, making it difficult to meet the multi-dimensional attitude adjustment requirements under complex working conditions. Furthermore, it lacks data visualization capabilities: traditional equipment lacks force detection and position feedback functions, preventing operators from obtaining real-time information on engine posture, force status, and equipment position. This makes it difficult to adjust the posture in a timely manner during assembly or maintenance, easily leading to engine impact damage. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a suspended attitude adjustment device for aircraft engine assembly, which integrates multiple functions such as walking, lifting, and rolling. While achieving high-precision attitude adjustment, it ensures safety throughout the process and data visualization, and is suitable for assembly and maintenance operations of aircraft and large industrial engines.

[0005] A sling-mounted attitude adjustment device for aircraft engine assembly, comprising:

[0006] The main fixed frame (4) serves as the load-bearing foundation;

[0007] The lifting and rolling frame (5) is mounted on the main fixed frame (4) in a lifting and rolling manner;

[0008] The lifting drive device (2) is installed between the main fixed frame (4) and the lifting rolling frame (5) to drive the vertical lifting of the lifting rolling frame (5);

[0009] A safety redundancy device (3) is installed on the main fixed frame (4) to provide braking clamping in case of abnormal lifting or stationary conditions;

[0010] The rolling mechanism (6) is installed on the lifting rolling frame (5) and is used to drive the engine to roll circumferentially.

[0011] The driving walking mechanism (10) is installed on the main fixed frame (4) and is used to drive the entire device to move along the walking track (1).

[0012] The lifting drive device (2) includes:

[0013] The lifting power source is installed on the main fixed frame (4) or the lifting and rolling frame (5);

[0014] The screw drive mechanism is connected between the lifting power source and the lifting rolling frame (5) and is used to convert the rotational motion into linear lifting motion.

[0015] A linear guide mechanism is set between the main fixed frame (4) and the lifting and rolling frame (5) to guide the lifting and rolling frame (5) to rise and fall vertically.

[0016] The safety redundancy device (3) includes:

[0017] A linear brake (301) is fixedly installed on the main fixed frame (4), and a piston rod (302) is connected to the lifting and rolling frame (5) to realize emergency braking during the lifting process;

[0018] Safety brake (305) is installed on the main fixed frame (4). The brake end of the safety brake (305) clamps the lifting drive device (2) to achieve double clamping in the static state.

[0019] The rolling mechanism (6) includes:

[0020] The roll drive assembly (601) is mounted on the C-ring bracket (503) of the lifting roll frame (5);

[0021] The rolling assembly (603) includes a rolling support (6031) rotatably disposed within a C-shaped ring bracket (503), and an arc rack (6032) and an arc guide rail (6033) fixedly disposed on the rolling support (6031).

[0022] The drive gear (6017) of the roll drive assembly (601) meshes with the circular arc rack (6032) to drive the roll support (6031) to rotate.

[0023] The rolling mechanism (6) further includes a rolling positioning group (602), which includes:

[0024] The first telescopic electromagnet (6021) is mounted on the C-ring bracket (503);

[0025] The positioning pin (6024) is connected to the telescopic rod of the first telescopic electromagnet (6021);

[0026] The rolling support (6031) is provided with a corresponding pin hole, and the positioning pin (6024) is inserted into the pin hole after rolling into place to achieve precise locking.

[0027] It also includes a load-bearing pin mechanism (7), which includes:

[0028] A six-dimensional force sensor (703) is mounted on the rolling support (6031) of the rolling mechanism (6);

[0029] The load-bearing pin (711) is connected to the rolling support (6031) via a six-dimensional force sensor (703) for rigid connection with the engine fan end and real-time detection of the force state.

[0030] It also includes an auxiliary rolling mechanism (8), which includes:

[0031] Auxiliary rolling connector (801) is used for rigid connection with the low vortex end of the engine;

[0032] V-shaped arc guide rail (802) is mounted on auxiliary rolling connector (801);

[0033] An auxiliary rolling fixing seat (803) is fixedly installed on the lifting rolling frame (5);

[0034] The V-shaped roller (804) is mounted on the auxiliary rolling fixing seat (803) and slides in cooperation with the V-shaped arc guide rail (802) to form an auxiliary rolling guide.

[0035] It also includes an auxiliary boom device (9), which comprises:

[0036] Linear guide rail (904) is installed on the lifting and rolling frame (5);

[0037] At least one set of auxiliary lifting rods is slidably mounted on a linear guide rail (904) for connecting lifting interfaces of different parts of the engine;

[0038] A unidirectional force sensor (9032) is installed on the auxiliary lifting rod (903) to detect the force on the auxiliary lifting point in real time.

[0039] Also includes:

[0040] The walking positioning mechanism (12) is installed on the main fixed frame (4) and includes a retractable walking positioning pin (1205) for inserting into the positioning pin hole seat (1206) on the walking track (1) when the device moves to the target position;

[0041] The braking mechanism (11), mounted on the main fixed frame (4), includes a retractable brake pad (1111) for braking and preventing slippage when the device is stationary by fitting against the travel track (1).

[0042] It also includes a power supply and location reading device (13), which includes:

[0043] The current collector (1302) is installed on the main fixed frame (4) and slides in cooperation with the external sliding contact line (1303) to supply power to the device;

[0044] The scanning head (1304) is installed on the main fixed frame (4) and is used to scan the preset position mark on the side of the walking track (1) and read the walking position information in real time.

[0045] By employing the above technical solution, the present invention has at least the following beneficial effects:

[0046] 1. Functional Integration. This invention integrates core functions such as walking, lifting, rolling, and hoisting, without the need for additional equipment switching, and can fully meet the various attitude adjustment requirements during the assembly and maintenance of aero engines.

[0047] 2. Enhanced Safety. This invention provides multi-dimensional safety protection through dual braking of the safety redundancy device, clamping of the rolling mechanism, positioning design, and anti-slip design of the braking mechanism, effectively avoiding the risks of falling during lifting, unexpected rolling, and slippage during travel; the anti-collision warning function of the lidar further ensures safety during travel.

[0048] 3. Data Visualization. In this invention, the six-dimensional force sensor and the unidirectional force sensor detect force values ​​in real time, and the scanning head accurately feeds back position information, realizing data visualization of the assembly process. This allows operators to adjust the posture in a timely manner and avoids bumps and damage to the engine during assembly and maintenance.

[0049] 4. Stable and high-precision attitude adjustment. The four sets of synchronous servo motors of the lifting drive device, together with the guide rail, ensure smooth lifting without off-center load; the gear and rack meshing of the rolling mechanism, combined with the arc guide rail and the V-shaped guide rail roller of the auxiliary rolling mechanism, achieves precise control of the engine rolling. Attached Figure Description

[0050] Figure 1 A schematic diagram of the overall structure of the suspension attitude adjustment device for aircraft engine assembly provided by the present invention;

[0051] Figure 2 This is a schematic diagram of the lifting drive device in this invention;

[0052] Figure 3 This is a schematic diagram of the safety redundancy device in the present invention;

[0053] Figure 4 This is a schematic diagram of the main fixing frame in this invention;

[0054] Figure 5 This is a schematic diagram of the lifting and rolling frame in this invention;

[0055] Figure 6 This is a schematic diagram of the rolling mechanism in the present invention. Figure 1 ;

[0056] Figure 7 This is a schematic diagram of the rolling mechanism in the present invention. Figure 2 ;

[0057] Figure 8 This is a schematic diagram of the roll drive assembly in this invention;

[0058] Figure 9 This is a schematic diagram of the rolling positioning group in this invention;

[0059] Figure 10 This is a schematic diagram of the rolling embodiment group in the present invention. Figure 1 ;

[0060] Figure 11 This is a schematic diagram of the rolling embodiment group in the present invention. Figure 2 ;

[0061] Figure 12 This is a schematic diagram of the load-bearing pin mechanism in the present invention. Figure 1 ;

[0062] Figure 13 This is a schematic diagram of the load-bearing pin mechanism in the present invention. Figure 2 ;

[0063] Figure 14 This is a schematic diagram of the open state of the load-bearing pin mechanism in this invention;

[0064] Figure 15 This is a schematic diagram of the closed state of the load-bearing pin mechanism in this invention;

[0065] Figure 16 This is a schematic diagram of the auxiliary rolling mechanism in this invention;

[0066] Figure 17 This is a schematic diagram of the overall auxiliary lifting rod in this invention;

[0067] Figure 18This is a schematic diagram of the low-vortex auxiliary boom in this invention;

[0068] Figure 19 This is a schematic diagram of the driving walking mechanism in this invention;

[0069] Figure 20 This is a front view of the driving walking mechanism in this invention;

[0070] Figure 21 Schematic diagram of the braking mechanism in this invention Figure 1 ;

[0071] Figure 22 Schematic diagram of the braking mechanism in this invention Figure 2 ;

[0072] Figure 23 This is a schematic diagram showing the energized state of the braking mechanism in this invention;

[0073] Figure 24 This is a schematic diagram of the braking mechanism in the present invention in the power-off state;

[0074] Figure 25 This is a schematic diagram of the walking positioning mechanism in this invention;

[0075] Figure 26 This is a schematic diagram showing the energized state of the walking positioning mechanism in this invention;

[0076] Figure 27 This is a schematic diagram of the power-off state of the walking positioning mechanism in this invention;

[0077] Figure 28 This is a schematic diagram of the power supply and position reading device in this invention;

[0078] Figure 29 This is a schematic diagram showing the state of the present invention at its highest position.

[0079] Figure 30 This is a schematic diagram showing the state of the present invention at its lowest position.

[0080] Figure 31 This is the first working state direction of the hoisting engine in this invention when it is not rotating.

[0081] Figure 32 This is the second working direction of the hoisting engine in the present invention when it is not rotating;

[0082] Figure 33 This is the first working direction of the hoisting engine rotating 20° in this invention;

[0083] Figure 34 This is the second working direction of the hoisting engine rotating 20° in this invention;

[0084] Figure 35 This is the first working direction of the hoisting engine rotating 30° in this invention;

[0085] Figure 36 This is the second working direction of the hoisting engine rotating 30° in this invention;

[0086] Figure 37 This is the first working direction of the hoisting engine rotating at -20° in this invention;

[0087] Figure 38 This is the second working direction of the hoisting engine rotating -20° in this invention;

[0088] Figure 39 This refers to the working direction of the hoisting engine rotating at -30° in this invention.

[0089] Figure 40 This is the second working state direction of the hoisting engine rotating at -30° in this invention;

[0090] In the picture:

[0091] 1. Traveling track; 2. Lifting drive device; 3. Safety redundancy device; 4. Main fixed frame; 5. Lifting and rolling frame; 6. Rolling mechanism; 7. Bearing pin mechanism; 8. Auxiliary rolling mechanism; 9. Auxiliary hoist device; 10. Drive traveling mechanism; 11. Braking mechanism; 12. Traveling positioning mechanism; 13. Power supply and position reading device; 201. Lifting servo motor; 202. Lifting reducer; 203. Upper bearing seat; 204. Lower bearing seat; 205. Lead screw; 206. Lead screw nut; 207. First guide rail slider; 208. First linear guide rail; 301. Linear brake; 302. Piston rod; 303. Fixing ring; 304. First locking nut; 305. Safety brake; 306. Safety brake 401. Main lifting beam crossbeam; 402. Main lifting beam longitudinal beam; 403. Drive travel mounting support; 404. Guide rail slider mounting support; 405. Screw nut mounting support; 406. Linear brake mounting support; 407. Anti-collision bar; 408. LiDAR; 501. Main support longitudinal beam; 502. Auxiliary support longitudinal beam; 503. C-ring bracket; 5031. C-ring front and rear brackets; 5032. C-ring upper bracket; 5033. C-ring protective cover; 504. Lifting bracket; 505. Connecting crossbeam; 506. Front flexible sling; 507. Rear flexible sling; 508. Diagonal bracing rib; 601. Roll drive assembly; 602. Roll positioning assembly; 603. Roll implementation assembly; 6011. 6012 Rolling servo motor; 6013 Rolling clamp; 6014 Rolling reducer; 6015 Reducer connecting plate; 6016 Reducer adjusting block; 6017 Adjusting bolt; 6018 Drive gear; 6021 First telescopic electromagnet; 6022 Electromagnet mounting base; 6023 Electromagnet guide seat; 6024 Positioning pin; 6025 Limit stop; 6026 First proximity switch; 6027 Second proximity switch; 6028 Switch bracket; 6031 Rolling support; 6032 Arc rack; 6033 Arc guide rail; 6034 Arc guide rail slider; 6035 Opposite arc guide rail; 6036 Opposite arc guide rail slider; 701 Six-dimensional force sensor mounting bracket; 702 703. Six-dimensional force sensor mounting plate; 704. Six-dimensional force sensor; 705. Adjusting shim; 706. Load-bearing pin mounting seat; 707. Load-bearing pin pressure plate; 708. Union bolt; 709. Second locking nut; 710. Nut anti-loosening sleeve; 711. Ball locking pin; 712. Load-bearing pin adjusting plate; 713. Support plate; 801. Auxiliary rolling connection seat; 802. V-shaped arc guide rail; 803. Auxiliary rolling fixing seat; 804. V-shaped roller; 805. V-shaped arc guide rail lubricating block; 806. Auxiliary rolling locking pin; 807. Connecting arm base; 808. Connecting arm; 809. Connecting arm joint; 810. Connecting stud; 901. Fan end auxiliary hanger; 902. Core machine end auxiliary hanger;903. Low-Vortex Auxiliary Rod; 904. Second Linear Guide Rail; 905. Second Guide Rail Slider; 906. Auxiliary Rod Mounting Plate; 907. Auxiliary Rod Hook; 9031. Rod Seat; 9032. Unidirectional Force Sensor; 9033. Rod End Joint Bearing; 9034. Turnbuckle; 1001. Travel Mounting Base; 1002. Travel Roller Mounting Base; 1003. Travel Servo Motor; 1004. Travel Reducer; 1005. Travel Drive Main Gear; 1006. Travel Drive Slave Gear; 1007. Drive Travel Roller; 1008. Travel Roller; 1101. Support Connector; 1102. Second Telescopic Electromagnet ; 1103, Cylindrical connecting seat; 1104, Return spring; 1105, Lifting connecting seat; 1106, Lifting rod; 1107, Connecting rod; 1108, Connecting rod connecting seat; 1109, Pin; 1110, Brake pad bracket; 1111, Brake pad; 1112, Connecting seat bracket; 1201, Walking positioning fixing bracket; 1202, Positioning support; 1203, Third telescopic electromagnet; 1204, Positioning guide seat; 1205, Walking positioning pin; 1206, Positioning pin hole seat; 1301, Fixing bracket; 1302, Relay; 1303, Sliding contact line; 1304, Scanning head; 1305, Barcode. Detailed Implementation

[0092] To better explain and facilitate understanding of the present invention, the technical solution and effects of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0093] like Figures 1-40As shown, a hoisting and attitude adjustment device for aircraft engine assembly includes a traveling track 1, a lifting drive device 2, a safety redundancy device 3, a main fixed frame 4, a lifting and rolling frame 5, a rolling mechanism 6, a load-bearing pin mechanism 7, an auxiliary rolling mechanism 8, an auxiliary hoisting device 9, a driving traveling mechanism 10, a braking mechanism 11, a traveling positioning mechanism 12, and a power supply and position reading device 13. The traveling track 1 provides mobile support for the driving traveling mechanism 10. The lifting drive device 2 and the safety redundancy device 3 are both installed between the main fixed frame 4 and the lifting and rolling frame 5. The lifting drive device 2 is used to realize the vertical lifting and lowering of the engine, and the safety redundancy device 3 is used to ensure safety during the lifting and lowering process and in a stationary state. The lifting and rolling frame 5, the rolling mechanism 6, and the auxiliary rolling mechanism 8 work together to realize the circumferential rolling function of the engine. The load-bearing pin mechanism 7 is symmetrically installed on both sides of the rolling mechanism 6 for rigid connection with the fan end of the engine. The auxiliary rolling mechanism 8 is rigidly connected to the low-vortex end of the engine, and the auxiliary hoisting device 9 is fixedly installed on the lifting and rolling frame 5 to provide auxiliary hoisting support for the engine. The driving mechanism 10 is mounted on the main fixed frame 4, driving the entire device to move along the walking track 1. The braking mechanism 11 and the walking positioning mechanism 12 are both mounted on the main fixed frame 4, respectively achieving anti-slip during the device's stationary process and precise positioning in the stationary state. The power supply and position reading device 13 is mounted on the side of the main fixed frame 4, providing power to the entire device and reading the walking position information in real time.

[0094] The walking track 1 adopts an H-shaped steel structure, and the driving walking mechanism 10 moves along the walking track 1. The walking track 1 provides a stable moving support surface for the driving walking mechanism 10.

[0095] The main fixed frame 4 is arranged parallel to the traveling track 1, specifically including two parallel main hanging beams 402 and a main hanging beam crossbeam 401 fixed between the two main hanging beams 402, forming an H-shaped structural frame. Drive traveling mounting supports 403 are symmetrically arranged on the two main hanging beams 402 for mounting the drive traveling mechanism 10; guide rail slider mounting supports 404 are symmetrically installed on the two main hanging beams 402 for mounting the first linear guide rail 208; screw nut mounting supports 405 are symmetrically installed on the two main hanging beams 402 for mounting the screw nut 206; linear brake mounting supports 406 are symmetrically installed on the two main hanging beams 402 for mounting the linear brake 301. Anti-collision bars 407 are provided at both ends of the main hanging beams 402, i.e., at both ends of the traveling direction of the main fixed frame 4; the anti-collision bars 407 are physical anti-collision protection structures. A lidar 408 is installed on one end of the anti-collision bar 407, specifically at the front end of the anti-collision bar 407, as a scanning safety system, used to identify obstacles in front of the walking path in real time and realize collision warning.

[0096] The driving and walking mechanism 10 includes a walking mounting base 1001 fixedly mounted on the main fixed frame 4, specifically mounted on the driving and walking mounting support 403. Two walking roller mounting seats 1002 are symmetrically arranged on both sides of the walking mounting base 1001. The walking servo motor 1003 and the walking reducer 1004 are fixedly mounted on the outer side of the walking roller mounting seat 1002 on one side. The output end of the walking reducer 1004 is equipped with the walking drive main gear 1005. The walking drive main gear 1005 achieves the meshing transmission of the walking drive driven gear 1006 through the transmission of the driving walking roller 1007. The walking roller 1008 is mounted on the inner side of the walking roller mounting seat 1002 on the other side. Both the driving walking roller 1007 and the walking roller 1008 are in rolling cooperation with the walking track 1, and a one-millimeter gap is reserved between them and the walking track 1 to prevent jamming due to offset during walking.

[0097] The braking mechanism 11 includes a support connecting seat 1101 fixedly installed on the longitudinal beam 402 of the main suspension beam. The support connecting seat 1101 is located between the main fixed frame 4 and the traveling track 1. The connecting seat bracket 1112 is also fixed to the longitudinal beam 402 of the main suspension beam. A cylindrical connecting seat 1103 is installed on the lower end face of the support connecting seat 1101, and the second telescopic electromagnet 1102 is connected to the cylindrical connecting seat 1103. A lifting connecting seat 1105 is installed on the upper end face of the support connecting seat 1101. A return spring 1104 is sleeved on the outside of the telescopic rod of the second telescopic electromagnet 1102, with both ends abutting against the second telescopic electromagnet 1102 and the lifting connecting seat 1105 respectively, to realize the automatic return of the telescopic rod. The lifting rod 1106 is fixed to the top of the telescopic rod of the second telescopic electromagnet 1102, and is hinged to one end of the connecting rod 1107 via a pin. The other end of the connecting rod 1107 is hinged to the connecting rod connecting seat 1108 via a pin 1109. The connecting rod connecting seat 1108 is installed on the side end face of the support connecting seat 1101. The brake pad bracket 1110 is fixed to the connecting rod 1107, and the brake pad 1111 is installed on the side of the brake pad bracket 1110 near the travel track 1.

[0098] When the device moves, the second telescopic electromagnet 1102 is energized, causing the telescopic rod to retract and rotate the connecting rod 1107 around the hinge point between the connecting rod 1107 and the connecting rod connecting seat 1108, thus disengaging the brake pad 1111 from the travel track 1. When the device is stationary or requires braking, the second telescopic electromagnet 1102 is de-energized, and the return spring 1104 drives the telescopic rod to return to its original position, causing the brake pad 1111 to engage with the travel track 1, achieving braking and preventing slippage.

[0099] Furthermore, the walking positioning mechanism 12 includes a walking positioning fixing bracket 1201 vertically fixedly installed on the upper surface of the support connecting seat 1101, and a positioning support 1202 fixed to the side of the walking positioning fixing bracket 1201. A third telescopic electromagnet 1203 is installed on one side of the positioning support 1202, and a positioning guide seat 1204 is fixed on the other side of the positioning support 1202. A walking positioning pin 1205 is fixed on the telescopic rod of the third telescopic electromagnet 1203 and slides along the positioning guide seat 1204 under the drive of the third telescopic electromagnet 1203. A positioning pin hole seat 1206 is fixedly installed at a preset positioning position on the walking track 1. When the device moves to the target position, the third telescopic electromagnet 1203 drives the walking positioning pin 1205 to insert into the pin hole of the positioning pin hole seat 1206 to achieve precise positioning.

[0100] The lifting drive device 2 includes a lifting servo motor 201 and a lifting reducer 202 connected to the output end of the lifting servo motor 201. The output end of the lifting reducer 202 is connected to a lead screw 205 via a coupling. The upper end of the lead screw 205 is fixedly installed in an upper bearing seat 203, and the lower end is fixedly installed in a lower bearing seat 204. Both the upper bearing seat 203 and the lower bearing seat 204 are fixed to the lifting bracket 504 of the lifting rolling frame 5. A lead screw nut 206 is sleeved on the lead screw 205 and fixedly installed on the lead screw nut mounting bracket 405. A first guide rail slider 207 is fixedly installed on the lifting bracket 504, and a first linear guide rail 208 is fixedly installed on the guide rail slider mounting bracket 404. The first guide rail slider 207 can move along the first linear guide rail 208 and slides with the first linear guide rail 208 to form a lifting guide mechanism. The lifting drive device 2 is arranged in four sets, and the four sets of lifting servo motors 201 are driven synchronously. Through the helical transmission of the lead screw 205 and lead screw nut 206, and with the guiding effect of the first guide rail slider 207 and the first linear guide rail 208, the engine can be lifted and lowered smoothly.

[0101] The safety redundancy device 3 includes a linear brake 301, which is fixedly mounted on a linear brake mounting bracket 406. The linear brake 301 is used to achieve emergency braking and static clamping functions. A piston rod 302 passes through the linear brake 301. One end of the piston rod 302 is fitted with a fixing ring 303, and the other end is locked to the main fixed frame 4 by a first locking nut 304, ensuring smooth and unobstructed movement of the linear brake 301 on the piston rod 302. A safety brake 305 is fixedly mounted on a safety brake mounting plate 306. The braking end of the safety brake 305 grips the end of the lead screw 205, forming a double safety protection with the linear brake 301. Furthermore, four sets of the safety redundancy device 3 are arranged corresponding to the lifting drive device 2, working in coordination to achieve emergency braking in case of abnormalities during lifting and to achieve double clamping when the device is stationary, avoiding the risk of slippage or falling.

[0102] Furthermore, the lifting and rolling frame 5 includes a rolling platform and a lifting platform. The rolling platform is composed of a main support longitudinal beam 501, an auxiliary support longitudinal beam 502, and a C-shaped ring bracket 503, with the C-shaped ring bracket 503 opening downwards. The two main support longitudinal beams 501 are arranged symmetrically to the left and right of the C-shaped ring bracket 503, and the auxiliary support longitudinal beam 502 is arranged front and rear with the main support longitudinal beams 501. The lifting platform is composed of a lifting bracket 504 and a connecting crossbeam 505, and is positioned above the rolling platform. The front flexible sling 506 and the rear flexible sling 507 are connected at both ends to the rolling platform and the lifting platform, respectively, to enhance the connection strength between the two. Furthermore, the C-ring bracket 503 includes a C-ring front and rear bracket 5031, a C-ring protective cover 5033 on the C-ring front and rear bracket 5031, and a C-ring upper bracket 5032 on the top of the C-ring front and rear bracket 5031. The C-ring protective cover 5033 is used to protect the core component of the rolling mechanism 6 inside the C-ring front and rear bracket 5031. The diagonal reinforcing rib 508 connects the C-ring front and rear bracket 5031 with the auxiliary support longitudinal beam 502, further improving the structural rigidity of the rolling platform.

[0103] The rolling mechanism 6 includes a rolling drive group 601, a rolling positioning group 602, and a rolling implementation group 603. The rolling drive group 601 drives the rolling implementation group 603 to realize the rolling function of the aero-engine assembly, and the rolling positioning group 602 realizes the positioning function after rolling.

[0104] The roll drive assembly 601 includes a roll servo motor 6011 and a roll clamp 6012 connected to the output end of the roll servo motor 6011 for emergency braking of the roll. The output end of the roll clamp 6012 is connected to a roll reducer 6013, which is fixedly mounted on a reducer connecting plate 6014, which is fixed to the C-ring front and rear brackets 5031. A drive gear 6017 is connected to the output end of the roll reducer 6013 and meshes with a circular arc rack 6032. A reducer adjusting block 6015 is located at the bottom of the roll reducer 6013, and an adjusting bolt 6016 passes through the reducer adjusting block 6015 to adjust the meshing clearance between the drive gear 6017 and the circular arc rack 6032, ensuring transmission accuracy.

[0105] The rolling assembly 603 includes an arc rack 6032, an arc guide rail 6033, and an opposite arc guide rail 6035. The arc rack 6032 and the arc guide rail 6033 are fixedly mounted on the front end face of the rolling support 6031, and the opposite arc guide rail 6035 is fixedly mounted on the rear end face of the rolling support 6031. The drive gear 6017 meshes with the arc rack 6032 for transmission. The arc guide rail slider 6034 and the opposite arc guide rail slider 6036 are respectively mounted on the front and rear supports 5031 of the C-shaped ring, and slide with the arc guide rail 6033 and the opposite arc guide rail 6035 respectively, forming a rolling guide mechanism. When the roll servo motor 6011 is driven, the roll support 6031 is driven to rotate through the meshing of the drive gear 6017 and the circular arc rack 6032, so as to realize the roll of the aero-engine assembly; after the roll is in place, it is positioned by the roll positioning group 602.

[0106] Furthermore, the roll positioning assembly 602 includes an electromagnet mounting base 6022 and an electromagnet guide seat 6023 coaxially arranged. The electromagnet mounting base 6022 is fixedly mounted on the C-shaped ring front and rear brackets 5031. A first telescopic electromagnet 6021 is mounted on the electromagnet mounting base 6022, and a positioning pin 6024 is fixed on the telescopic rod of the first telescopic electromagnet 6021. The telescopic rod drives the positioning pin 6024 to slide along the electromagnet guide seat 6023 and can extend outside the electromagnet guide seat 6023. A limiting stop 6025 is mounted on the electromagnet guide seat 6023 to limit the telescopic stroke of the first telescopic electromagnet 6021. After rolling into position, the first telescopic electromagnet 6021 drives the positioning pin 6024 to insert into the pin hole on the roll support 6031, completing the positioning. The switch bracket 6028 is installed on the fixed end of the first telescopic electromagnet 6021. The first proximity switch 6026 and the second proximity switch 6027 are respectively installed on the two switch brackets 6028, corresponding to the insertion and withdrawal states of the positioning pin 6024, to realize the positioning status warning.

[0107] The load-bearing pin mechanism 7 includes a six-dimensional force sensor mounting bracket 701, which is fixedly installed on both sides of the front end face of the rolling support 6031. A six-dimensional force sensor mounting plate 702, a six-dimensional force sensor 703, and an adjusting shim 704 are sequentially installed on the lower mounting surface of the six-dimensional force sensor mounting bracket 701. A load-bearing pin mounting seat 705 is fixed to the lower surface of the six-dimensional force sensor 703 and is rotatably connected to the load-bearing pin pressure plate 706 via a pin shaft. One end of a live bolt 707 is rotatably connected to the load-bearing pin pressure plate 706 via a pin shaft, and the other end is locked by a second locking nut 708, connecting the load-bearing pin mounting seat 705 to the load-bearing pin pressure plate 706. A nut anti-loosening sleeve 709 is fixed on the load-bearing pin mounting seat 705 and sleeved on the outside of the second locking nut 708. During installation, flip the load-bearing pin pressure plate 706 upwards, away from the load-bearing pin mounting seat 705; after installation, place the load-bearing pin 711 between the load-bearing pin mounting seat 705 and the load-bearing pin pressure plate 706, and achieve positioning by inserting the ball-shaped locking pin 710 into the pin hole of the load-bearing pin mounting seat 705; then tighten the live bolt 707 to fix it.

[0108] Furthermore, a load-bearing pin adjusting plate 712 is provided on the side of the load-bearing pin mounting seat 705 to adjust the axial position of the load-bearing pin 711 and ensure that the engine axis coincides with the device axis. A support plate 713 is provided on the side of the load-bearing pin pressure plate 706 to prevent the spherical locking pin 710 from being missed or broken, thus protecting the safety of the aero-engine assembly.

[0109] The six-dimensional force sensor 703 is used to detect in real time the force value borne by the load-bearing pin mechanism 7 under different engine postures and the force during docking and assembly. The end of the load-bearing pin 711 is connected to the interface of the aero-engine assembly to realize the rigid connection between the aero-engine assembly and the rolling mechanism 6.

[0110] The auxiliary rolling mechanism 8 includes an auxiliary rolling connecting seat 801, which is rigidly connected to the low-turbo end face of the engine. A V-shaped arc guide rail 802 is fixedly installed on the outer wall of the auxiliary rolling connecting seat 801. Six V-shaped rollers 804 are arranged evenly and vertically on the inner side of the auxiliary rolling fixing seat 803. The V-shaped arc guide rail 802 and the V-shaped rollers 804 slide in cooperation to form an auxiliary rolling guide mechanism, ensuring the smoothness of the engine rolling process. A V-shaped arc guide rail lubrication block 805 is installed on the auxiliary rolling fixing seat 803 and fits against the V-shaped arc guide rail 802 to continuously provide lubrication for the V-shaped arc guide rail 802 and reduce sliding friction loss. The auxiliary rolling locking pin 806 passes through the corresponding pin holes of the auxiliary rolling fixing seat 803 and the V-shaped arc guide rail 802. When the device does not need to roll, the auxiliary rolling locking pin 806 is inserted to fix the V-shaped arc guide rail 802 and the auxiliary rolling fixing seat 803, preventing unexpected rolling. One end of the connecting arm base 807 is fixedly installed on the auxiliary support longitudinal beam 502 of the lifting and rolling frame 5. One end of the connecting arm 808 is hinged to the other end of the connecting arm base 807. The other end of the connecting arm 808 is fixedly connected to the connecting arm joint 809 by the connecting stud 810. The end of the connecting arm joint 809 away from the connecting arm 808 is rigidly connected to the auxiliary rolling fixing seat 803 by bolts, thereby fixing the auxiliary rolling mechanism 8 to the lifting and rolling frame 5, and thus cooperating with the rolling mechanism 6 to achieve the coordinated rolling of the engine.

[0111] Furthermore, the auxiliary boom device 9 includes a second linear guide rail 904, which is fixedly mounted on the auxiliary support longitudinal beam 502 of the lifting and rolling frame 5. The core machine end auxiliary boom 902 and the low-vortex end auxiliary boom 903 are mounted on the auxiliary boom mounting plate 906, which is slidably engaged with the second linear guide rail 904 via a second guide rail slider 905. The second guide rail slider 905 can move along the second linear guide rail 904, thereby adjusting the positions of the core machine end auxiliary boom 902 and the low-vortex end auxiliary boom 903. The fan end auxiliary boom 901 is mounted on the main support longitudinal beam 501 of the lifting and rolling frame 5.

[0112] The fan-end auxiliary rod 901 is used to connect to the engine fan mounting interface, the core engine-end auxiliary rod 902 is used to connect to the engine core engine mounting interface, and the low-vortex-end auxiliary rod 903 is used to connect to the engine low-vortex unit mounting interface. When not in use, each rod can be hung on the auxiliary rod hook 907 of the auxiliary support longitudinal beam 502.

[0113] Furthermore, the low-vortex-end auxiliary boom 903 includes a boom seat 9031, which is fixedly mounted on the auxiliary boom mounting plate 906. The two ends of the unidirectional force sensor 9032 are connected to the boom seat 9031 and the turnbuckle 9034 respectively via boom end spherical bearings 9033. The end of the turnbuckle 9034 is connected to the engine mounting interface. The fan-end auxiliary boom 901 and the core engine-end auxiliary boom 902 have the same structure as the low-vortex-end auxiliary boom 903, only their dimensions are adapted to different mounting interfaces.

[0114] The power supply and position reading device 13 includes a fixed bracket 1301, which is fixedly installed on the longitudinal beam 402 of the main lifting beam. A relay 1302 is installed on the fixed bracket 1301 and slides in cooperation with the external sliding contact line 1303 to provide stable power to the entire lifting and adjusting device. A scanning head 1304 is installed above the fixed bracket 1301 and corresponds to a barcode 1305 preset on the side of the travel track 1. By scanning the position information of the barcode 1305, the traveling position of the lifting and adjusting device is read in real time, achieving position feedback and precise control.

[0115] The aforementioned attitude adjustment device for aero-engine assembly uses the main fixed frame 4 as the core load-bearing foundation. Through the coordinated action of various functional modules, it completes the attitude adjustment of the aero-engine throughout the entire process of assembly or maintenance.

[0116] During operation, the drive walking mechanism 10 first moves the entire device along the walking track 1 to the target workstation. During the movement, the lidar 408 identifies obstacles in the path in real time to achieve anti-collision warning, and the physical anti-collision bar 407 provides double protection.

[0117] After reaching the predetermined position, the walking positioning pin 1205 of the walking positioning mechanism 12 is inserted into the pin hole seat on the walking track 1 to achieve mechanical locking; at the same time, the brake pad 1111 of the braking mechanism 11 fits against the track to prevent the vehicle from slipping when stationary.

[0118] Subsequently, the four sets of lifting drive devices 2 are started synchronously. Through the helical transmission of the lead screw 205 and the fixed lead screw nut 206, and with the guidance of the first linear guide rail 208, the lifting and rolling frame 5 and its connected engine are driven to rise and fall smoothly and vertically. During the lifting process, the linear brake 301 and the safety brake 305 of the safety redundancy device 3 work together to provide emergency braking in case of abnormality and double clamping to prevent falling when stationary.

[0119] After the lifting position is reached, the rolling mechanism 6 is activated. The rolling servo motor 6011 drives the rolling support 6031 to rotate through the meshing of the gear and rack. At the same time, the V-shaped guide rail of the auxiliary rolling mechanism 8 cooperates with the roller to guide and ensure that the engine rolls smoothly in the circumferential direction.

[0120] After rolling to the target angle, the positioning pin 6024 is inserted into the locking hole and the status is fed back by the proximity switch. When rolling is not required, the auxiliary rolling locking pin 806 can prevent accidental rotation.

[0121] Throughout the attitude adjustment process, the six-dimensional force sensor 703 of the load-bearing pin mechanism 7 detects the engine's stress state in real time, the unidirectional force sensor 9032 of the auxiliary boom device 9 monitors the load of the auxiliary lifting point, and the scanning head 1304 obtains the walking position information by reading the track barcode. All data is fed back to the operator in real time so that the attitude can be adjusted in a timely manner.

[0122] Ultimately, through the coordinated operation of various modules, the engine's movement, lifting, and rolling are precisely adjusted in multiple dimensions. At the same time, relying on multi-dimensional safety protection mechanisms and data visualization feedback, operational safety and assembly accuracy are ensured.

Claims

1. A suspension attitude adjustment device for aircraft engine assembly, characterized in that: include: The main fixed frame (4) serves as the load-bearing foundation; The lifting and rolling frame (5) is mounted on the main fixed frame (4) in a lifting and rolling manner; The lifting drive device (2) is installed between the main fixed frame (4) and the lifting rolling frame (5) to drive the vertical lifting of the lifting rolling frame (5); A safety redundancy device (3) is installed on the main fixed frame (4) to provide braking clamping in case of abnormal lifting or stationary conditions; The rolling mechanism (6) is installed on the lifting rolling frame (5) and is used to drive the engine to roll circumferentially. The driving walking mechanism (10) is installed on the main fixed frame (4) and is used to drive the entire device to move along the walking track (1).

2. The attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: The lifting drive device (2) includes: The lifting power source is installed on the main fixed frame (4) or the lifting and rolling frame (5); The screw drive mechanism is connected between the lifting power source and the lifting rolling frame (5) and is used to convert the rotational motion into linear lifting motion. A linear guide mechanism is set between the main fixed frame (4) and the lifting and rolling frame (5) to guide the lifting and rolling frame (5) to rise and fall vertically.

3. The attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: The safety redundancy device (3) includes: A linear brake (301) is fixedly installed on the main fixed frame (4), and a piston rod (302) is connected to the lifting and rolling frame (5) to realize emergency braking during the lifting process; Safety brake (305) is installed on the main fixed frame (4). The brake end of the safety brake (305) clamps the lifting drive device (2) to achieve double clamping in the static state.

4. The attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: The rolling mechanism (6) includes: The roll drive assembly (601) is mounted on the C-ring bracket (503) of the lifting roll frame (5); The rolling assembly (603) includes a rolling support (6031) rotatably disposed within a C-shaped ring bracket (503), and an arc rack (6032) and an arc guide rail (6033) fixedly disposed on the rolling support (6031). The drive gear (6017) of the roll drive assembly (601) meshes with the circular arc rack (6032) to drive the roll support (6031) to rotate.

5. A suspension attitude adjustment device for aircraft engine assembly according to claim 4, characterized in that: The rolling mechanism (6) further includes a rolling positioning group (602), which includes: The first telescopic electromagnet (6021) is mounted on the C-ring bracket (503); The positioning pin (6024) is connected to the telescopic rod of the first telescopic electromagnet (6021); The rolling support (6031) is provided with a corresponding pin hole, and the positioning pin (6024) is inserted into the pin hole after rolling into place to achieve precise locking.

6. The attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: It also includes a load-bearing pin mechanism (7), which includes: A six-dimensional force sensor (703) is mounted on the rolling support (6031) of the rolling mechanism (6); The load-bearing pin (711) is connected to the rolling support (6031) via a six-dimensional force sensor (703) for rigid connection with the engine fan end and real-time detection of the force state.

7. The attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: It also includes an auxiliary rolling mechanism (8), which includes: Auxiliary rolling connector (801) is used for rigid connection with the low vortex end of the engine; V-shaped arc guide rail (802) is mounted on auxiliary rolling connector (801); An auxiliary rolling fixing seat (803) is fixedly installed on the lifting rolling frame (5); The V-shaped roller (804) is mounted on the auxiliary rolling fixing seat (803) and slides in cooperation with the V-shaped arc guide rail (802) to form an auxiliary rolling guide.

8. A suspension attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: It also includes an auxiliary boom device (9), which comprises: Linear guide rail (904) is installed on the lifting and rolling frame (5); At least one set of auxiliary lifting rods is slidably mounted on a linear guide rail (904) for connecting lifting interfaces of different parts of the engine; A unidirectional force sensor (9032) is installed on the auxiliary lifting rod (903) to detect the force on the auxiliary lifting point in real time.

9. A suspension attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: Also includes: The walking positioning mechanism (12) is installed on the main fixed frame (4) and includes a retractable walking positioning pin (1205) for inserting into the positioning pin hole seat (1206) on the walking track (1) when the device moves to the target position; The braking mechanism (11), mounted on the main fixed frame (4), includes a retractable brake pad (1111) for braking and preventing slippage when the device is stationary by fitting against the travel track (1).

10. A suspension attitude adjustment device for aircraft engine assembly according to claim 1, characterized in that: It also includes a power supply and location reading device (13), which includes: The current collector (1302) is installed on the main fixed frame (4) and slides in cooperation with the external sliding contact line (1303) to supply power to the device; The scanning head (1304) is installed on the main fixed frame (4) and is used to scan the preset position mark on the side of the walking track (1) and read the walking position information in real time.

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