CN111071952B

CN111071952B - Aircraft engine installation mechanism

Info

Publication number: CN111071952B
Application number: CN202010002029.9A
Authority: CN
Inventors: 谢震达
Original assignee: Jiaxing Jinlvyan Technology Co ltd
Current assignee: Jiaxing jinlvyan Technology Co.,Ltd.
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2021-07-13
Anticipated expiration: 2040-01-02
Also published as: CN111071952A

Abstract

The invention discloses an aircraft engine mounting mechanism, relates to the technical field of aeronautical machinery, and solves the problems that the existing mounting mechanism mainly finishes loading through a lifting mechanism, does not have the function of directly extending out of a main position from the bottom to place an engine, has high motion abrasion and is inconvenient to replace and assemble a wheel body. An aircraft engine mounting mechanism comprising a towed base; two groups of bearing devices are fixedly arranged on two sides of the traction type base through bolts; side frames are fixedly arranged on two sides of the traction type base through bolts, and top strips are fixedly arranged on the tops of the side frames through bolts; four groups of lifting devices are fixedly arranged between the side frame and the periphery of the top strip; through being provided with and bearing seat and roof, for installation mechanism provides protractile assembly function, can through the dual direction of guide rail and pulley with bear the steady removal of engine, improved the security relatively, convenient operation.

Description

Aircraft engine installation mechanism

Technical Field

The invention relates to the technical field of aeronautical machinery, in particular to an aircraft engine mounting mechanism.

Background

An aircraft engine is a highly complex and precise thermal machine, is used as the heart of an aircraft, is not only the power for flying the aircraft, but also the important driving force for promoting the development of aviation industry, is mainly cylindrical in shape, and is generally supported and assembled by a bearing mechanism.

Through retrieval, for example, patent No. CN103303483B discloses a rotary mechanism for installation and maintenance of an aircraft engine, which comprises a hydraulic actuator, a front main bearing beam of an aircraft engine cabin, a front frame, an engine, a cross beam, a rear bearing beam of the aircraft engine cabin, a rear frame, a pin, an auxiliary installation joint, an accessory casing and a main installation joint; the front frame, the rear frame and the cross beam form a fixed frame mechanism, the engine is fixed in the frame mechanism through the main mounting joint and the auxiliary mounting joint, and the frame mechanism is fixed on an engine compartment of the airplane so as to mount the engine on the airplane; the engine frame mechanism rotates around a pin, and the rotation angle and height of the engine are controlled by the extension length of the hydraulic cylinder. The invention has the advantages that: the stability is good, the weight of the engine is favorably reduced, the design difficulty of the engine is reduced, the occupied space is small, the maintenance efficiency is improved, and the working reliability of the main mounting joint and the auxiliary mounting joint of the engine is ensured; the device is suitable for equipment needing repeated hoisting and maintenance in other industries.

For another example, patent No. CN103318415B discloses a lifting device for installation and maintenance of an aircraft engine, which is characterized in that: the device comprises a lower guide rail, a roller, a short rod, a long rod, a pull rope, an upper guide rail, a winding drum, a motor, an engine, a deployable mechanism, a scissor mechanism and a drive control mechanism; the two sets of lower guide rails, the rollers, the scissor fork mechanisms, the upper guide rails and the driving control mechanism jointly form two independent extensible mechanisms, the two independent extensible mechanisms are vertically arranged at the front end and the rear end of the engine, the lower guide rails are fixedly connected with the engine, and the upper guide rails are fixedly connected with the airplane; the drive control mechanism comprises a pull rope, a winding drum and a motor. The invention has the advantages that: the folding ratio is large, the radial space between the engine and the airplane can be effectively utilized in a completely furled state, and meanwhile, the folding ratio can form accurate positioning with the main mounting section of the engine and is convenient for quick mounting. In the unfolding process, the unfolding is stable and the disturbance is small. The device is not only suitable for aero-engines, but also can be applied to cranes for industrial buildings and escape devices for fire disasters.

However, the currently used mounting mechanism mainly completes loading through a lifting mechanism, does not have the function of directly extending out of a main position from the bottom to place an engine, needs to place the engine by using a lifting appliance, is inconvenient to operate, low in working efficiency, high in motion wear and inconvenient to replace and assemble wheel bodies, and therefore the existing requirement is not met, and the aircraft engine mounting mechanism is provided.

Disclosure of Invention

Problem (A)

The invention aims to provide an aircraft engine mounting mechanism, which solves the problems that the existing mounting mechanism proposed in the background technology is loaded mainly through a lifting mechanism, does not have the function of directly extending out of a main position from the bottom to place an engine, needs to place the engine by using a lifting appliance, is inconvenient to operate, has low working efficiency, is high in movement abrasion and is inconvenient to replace and assemble wheel bodies.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an aircraft engine mounting mechanism comprising a towed base; two groups of bearing devices are fixedly arranged on two sides of the traction type base through bolts; side frames are fixedly arranged on two sides of the traction type base through bolts, and top strips are fixedly arranged on the tops of the side frames through bolts; four groups of lifting devices are fixedly arranged between the side frame and the periphery of the top strip; the tops of the two sides of the traction type base are movably provided with nut frames through lifting devices; the inner side of the nut frame is fixedly connected with the lifting frame through a bolt, and the top of the rear side of the lifting frame is fixedly provided with a rear clapboard; four groups of moving assemblies are fixedly arranged at the bottom of the traction type base; the moving assembly also comprises a wheel hub, a wheel sleeve, a clamping ring, a fixed frame, a clamping device, a sliding block and a fixed plate; the bottom of the moving assembly is rotatably provided with two groups of hubs through a rotating shaft, the outer parts of the hubs are provided with tooth-shaped structures, and the outer parts of the hubs are provided with wheel sleeves in a matching assembly mode through the tooth-shaped structures; the two sides of the bottom of the moving assembly are respectively and rotatably provided with a fixed frame through a rotating shaft, and the middle of the outer side of each fixed frame is respectively and rotatably provided with a clamping device through a bearing; the inner sides of the clamping devices are all provided with conical structures; two ends of the hub rotating shaft are both provided with conical structures; the top of the fixed frame is provided with a cross-shaped hole, sliding blocks are arranged in the cross-shaped hole in a sliding mode, and through holes are formed in the sliding blocks; the bottom of the moving assembly is fixedly provided with two groups of fixing plates, and screw holes are formed in the fixing plates.

Preferably, the carrying device further comprises a reinforcing rod, a round handle and a supporting foot pad; the inner sides of the bearing devices are all provided with H-shaped sliding grooves, and reinforcing rods are arranged in the sliding grooves in a sliding manner; a plurality of groups of pin holes are transversely formed in the middle of the reinforcing rod, pin holes are formed in one side of the end part of the bearing device, and the bearing device can be longitudinally fixed with the reinforcing rod through pin connection; the middle of the outer end part of the reinforcing rod is movably provided with a screw rod through threaded connection, the top of the screw rod is fixedly provided with a round handle, the bottom of the screw rod is fixedly provided with a supporting pad foot, and the distance between the round handle and the supporting pad foot exceeds the distance between the bottom of the traction type base and the ground.

Preferably, the lifting device further comprises a nut, a tapered roller bearing and a bevel gear; the main body of the lifting device is a lead screw, the outer side of the lead screw is movably provided with a nut through threaded connection, and two sides of the nut are fixedly provided with tapered roller bearings through interference fit; and bevel gears are fixedly arranged on the outer sides of the bottoms of the nuts.

Preferably, a three-phase motor is fixedly arranged on the rear side of the top of the traction type base; four groups of bevel gears are arranged on two sides of the nut frame and the lifting frame through rotating shafts, and the bevel gears on the two sides are movably connected through chains; the top of the rear side of the traction type base is rotatably provided with two groups of bevel gears through a shaft bracket structure, and the bevel gears are in motion connection with a three-phase motor; the bevel gear at the rear side of the nut frame is coaxially connected with a bevel gear connected with a three-phase motor.

Preferably, the lifting frame further comprises a sliding plate, a pulley and a stop block; a sliding plate is fixedly arranged in the middle of the rear side of the lifting frame, and a plurality of groups of pulleys are fixedly arranged at two outer thirds positions of two sides of the sliding plate; the front ends of the two sides of the lifting frame are uniformly provided with a stop block in a whole body mode, and the inner side and the middle of the top of the stop block are provided with round holes; the inner side of the lifting frame is provided with a bearing seat in a sliding manner through a sliding rail matched with a sliding block.

Preferably, the carrying seat further comprises a handle; two groups of extension structures are integrally arranged on two sides of the outer end of the bearing seat, two groups of handles are fixedly arranged on the two sides of the outer end of the bearing seat, and round holes are formed in the middle of the extension structures; the bearing seat can be fixedly connected with the middle round hole of the stop block through the round hole of the extension structure in a matching manner by a bolt or a lock catch; the top of the inner side of the bearing seat is fixedly provided with a top plate.

Preferably, arc-shaped fixture blocks are integrally arranged on two sides of the top plate; the rear side both ends of roof all are fixed and are provided with the fixture block structure, all seted up the pinhole perpendicularly in the fixture block structure, and the roof accessible sets up the round hole fixed connection that the fixed pin passed pinhole cooperation extension structure top.

Preferably, screens device accessible bolt passes the sliding block and inserts fixed plate locking connection, and all presss from both sides in the tapered structure of the both sides of screens device and wheel hub pivot and is equipped with the snap ring.

(III) advantageous effects

The invention provides an aircraft engine mounting mechanism, which is provided with a bearing seat and a top plate, provides an extensible assembly function for the mounting mechanism, can stably move an engine through double guiding and bearing of a guide rail and a pulley, saves the mounting step of large auxiliary instruments such as a lifting appliance and the like, relatively improves the safety and is convenient to operate.

Secondly, the linkage that screw frame cooperation chain drove bevel gear promotes, carries out whole promotion with the crane, and it is steady to promote the effect, and power is sufficient, can carry out steady quick lifting, and is easy and simple to handle, and convenient detection and maintenance has improved work efficiency.

Moreover, the setting of removing the subassembly provides steady equipment function for installation mechanism, and the wheel cover is fixed through the structure that coincide, compares the mode resistance that the cover was established bigger, can ensure the removal of wheel body, and the wheel cover utilizes the bolt to fix through screens device cooperation sliding block simultaneously, for the wheel cover provides convenient and fast's change function, can carry out quick replacement after the wheel cover wearing and tearing.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective side view of an embodiment of the present invention;

FIG. 3 is a schematic bottom view of an embodiment of the present invention;

FIG. 4 is a schematic perspective exploded view of an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a moving assembly according to an embodiment of the present invention;

FIG. 6 is an enlarged partial structural view of part A in the embodiment of the present invention;

FIG. 7 is an enlarged partial structural view of a portion B in the embodiment of the present invention;

FIG. 8 is an enlarged view of a portion C according to an embodiment of the present invention;

in fig. 1 to 8, the correspondence between the part names or lines and the reference numbers is:

1. the device comprises a traction type base, 2, a bearing device, 201, a reinforcing rod, 202, a round handle, 203, a supporting pad foot, 3, a side frame, 4, a top strip, 5, a lifting device, 501, a nut, 502, a tapered roller bearing, 503, a bevel gear, 6, a nut frame, 7, a lifting frame, 701, a sliding plate, 702, a pulley, 703, a stop dog, 8, a bearing seat, 801, a handle, 9, a top plate, 10, a moving assembly, 1001, a hub, 1002, a wheel sleeve, 1003, a snap ring, 1004, a fixing frame, 1005, a clamping device, 1006, a sliding block, 1007, a fixing plate, 11, a rear partition plate, 12 and a three-phase motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 8, an embodiment of the present invention includes: an aircraft engine mounting mechanism comprises a towing base 1; two groups of bearing devices 2 are fixedly arranged on two sides of the traction type base 1 through bolts; wherein, the carrying device 2 also comprises a reinforcing rod 201, a round handle 202 and a supporting foot pad 203; the inner sides of the bearing devices 2 are all provided with H-shaped sliding grooves, and reinforcing rods 201 are arranged in the sliding grooves in a sliding manner; a plurality of groups of pin holes are transversely formed in the middle of the reinforcing rod 201, pin holes are formed in one side of the end part of the bearing device 2, and the bearing device 2 can be longitudinally fixed with the reinforcing rod 201 through pin connection; a screw rod is movably arranged in the middle of the outer end part of the reinforcing rod 201 in a threaded connection mode, a round handle 202 is fixedly arranged at the top of the screw rod, a supporting pad 203 is fixedly arranged at the bottom of the screw rod, and the distance between the round handle 202 and the supporting pad 203 exceeds the distance between the bottom of the traction type base 1 and the ground; side frames 3 are fixedly arranged on two sides of the traction type base 1 through bolts, and top strips 4 are fixedly arranged on the tops of the side frames 3 through bolts; four groups of lifting devices 5 are fixedly arranged between the side frame 3 and the periphery of the top strip 4; the lifting device 5 further comprises a nut 501, a tapered roller bearing 502 and a bevel gear 503; the main body of the lifting device 5 is a lead screw, the outer side of the lead screw is movably provided with a nut 501 through threaded connection, and two sides of the nut 501 are fixedly provided with tapered roller bearings 502 through interference fit; bevel gears 503 are fixedly arranged on the outer sides of the bottoms of the nuts 501; the tops of the two sides of the traction type base 1 are respectively and movably provided with a nut frame 6 through a lifting device 5; the inner side of the nut frame 6 is fixedly connected with a lifting frame 7 through a bolt, and the top of the rear side of the lifting frame 7 is fixedly provided with a rear clapboard 11; wherein, the lifting frame 7 also comprises a sliding plate 701, a pulley 702 and a stop block 703; a sliding plate 701 is fixedly arranged in the middle of the rear side of the lifting frame 7, and a plurality of groups of pulleys 702 are fixedly arranged on two outer thirds positions of two sides of the sliding plate 701; the front ends of the two sides of the lifting frame 7 are uniformly provided with a baffle 703, and the inner side and the middle of the top of the baffle 703 are both provided with round holes; the inner side of the lifting frame 7 is provided with a bearing seat 8 in a sliding way by matching a sliding rail with a sliding block; wherein, the bearing seat 8 also comprises a handle 801; two groups of extension structures are integrally arranged on two sides of the outer end of the bearing seat 8, two groups of handles 801 are fixedly arranged on the two sides of the outer end of the bearing seat, and round holes are formed in the middle of the extension structures; the bearing seat 8 can be fixedly connected with the middle round hole of the baffle 703 through the round hole of the extension structure in a matching manner by a bolt or a lock catch; a top plate 9 is fixedly arranged at the top of the inner side of the bearing seat 8; wherein, arc-shaped fixture blocks are integrally arranged on two sides of the top plate 9; the two ends of the rear side of the top plate 9 are fixedly provided with fixture block structures, pin holes are vertically formed in the fixture block structures, and the top plate 9 can be fixedly connected through a round hole which is formed in the top of the extension structure and matched with the pin holes through the arrangement of fixing pins; four groups of moving assemblies 10 are fixedly arranged at the bottom of the traction type base 1; the moving assembly 10 further comprises a hub 1001, a wheel sleeve 1002, a snap ring 1003, a fixed frame 1004, a clamping device 1005, a sliding block 1006 and a fixed plate 1007; the bottom of the moving component 10 is rotatably provided with two groups of hubs 1001 through a rotating shaft, the outsides of the hubs 1001 are respectively provided with a tooth-shaped structure, and the outsides of the hubs 1001 are respectively provided with a wheel sleeve 1002 through the tooth-shaped structure in an assembled manner; the two sides of the bottom of the moving assembly 10 are both rotatably provided with a fixed frame 1004 through a rotating shaft, and the middle of the outer side of the fixed frame 1004 is both rotatably provided with a clamping device 1005 through a bearing; the inner sides of the clamping devices 1005 are all provided with conical structures; two ends of a rotating shaft of the hub 1001 are both provided with conical structures; a cross-shaped hole is formed in the top of the fixing frame 1004, sliding blocks 1006 are arranged in the cross-shaped hole in a sliding mode, and through holes are formed in the sliding blocks 1006; the bottom of the movable assembly 10 is fixedly provided with two sets of fixing plates 1007, and screw holes are formed in the fixing plates 1007.

Wherein, a three-phase motor 12 is fixedly arranged at the rear side of the top of the traction type base 1; four groups of bevel gears are arranged on two sides of the nut frame 6 and the lifting frame 7 through rotating shafts, and the bevel gears on the two sides are movably connected through chains; the top of the rear side of the traction type base 1 is rotatably provided with two groups of bevel gears through a shaft bracket structure, and the bevel gears are movably connected with a three-phase motor 12; the bevel gear at the rear side of the nut frame 6 is coaxially connected with a bevel gear connected with a three-phase motor 12.

Wherein, screens device 1005 accessible bolt passes sliding block 1006 and inserts fixed plate 1007 locking connection, and all presss from both sides in the tapered structure of both sides of screens device 1005 and wheel hub 1001 pivot and is equipped with snap ring 1003.

The working principle is as follows:

when the lifting device is used, two persons hold the handle 801 to pull out the bearing seat 8 to the outside, and the fixture block structures at the two ends of the rear side of the top plate 9 are aligned with the stoppers 703 and fixed through pin connection; aligning a top plate 9 to the bottom plane of a frame body of the engine, winding and tensioning the frame body of the engine on the top plate 9 by using an electric forklift or a rope to be matched with a rear clapboard 11, pushing back a bearing seat 8, stably moving the engine to the center of an installation mechanism by the bearing seat 8 through the assistance of a plurality of groups of pulleys 702, aligning a handle 801 to the clamping block structures at the two ends of the rear side of the top plate 9, and fixing the clamping block structures by matching with bolts; the traction type base 1 is fixed to the tail end of a tractor and moved to two wings of an airplane, a three-phase motor 12 is started by power connection, the three-phase motor 12 drives four groups of nuts 501 to rotate in the same direction simultaneously through the compound linkage of bevel gears, and further drives a nut frame 6 and a lifting frame 7 to lift, and an engine can be assembled by lifting; when the wheel sleeve 1002 is worn to the extent that normal use is affected, the mounting mechanism is tilted, the bolts in the sliding blocks 1006 on the outer side of the wheel sleeve 1002, which need to be detached, are loosened, the fixing frame 1004 is lifted, and the wheel sleeve 1002 can be pulled out and replaced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An aircraft engine mounting mechanism characterized by: comprises a traction base (1); two groups of bearing devices (2) are fixedly arranged on two sides of the traction type base (1) through bolts; side frames (3) are fixedly arranged on two sides of the traction type base (1) through bolts, and top strips (4) are fixedly arranged on the tops of the side frames (3) through bolts; four groups of lifting devices (5) are fixedly arranged between the side frame (3) and the periphery of the top strip (4); the tops of the two sides of the traction type base (1) are respectively and movably provided with a nut frame (6) through a lifting device (5); the inner side of the nut frame (6) is fixedly connected with a lifting frame (7) through a bolt, and the top of the rear side of the lifting frame (7) is fixedly provided with a rear clapboard (11); four groups of moving assemblies (10) are fixedly arranged at the bottom of the traction type base (1); the moving assembly (10) further comprises a wheel hub (1001), a wheel sleeve (1002), a clamping ring (1003), a fixing frame (1004), a clamping device (1005), a sliding block (1006) and a fixing plate (1007); the bottom of the moving assembly (10) is rotatably provided with two groups of hubs (1001) through a rotating shaft, the outsides of the hubs (1001) are respectively provided with a tooth-shaped structure, and the outsides of the hubs (1001) are respectively provided with a wheel sleeve (1002) through the tooth-shaped structure in a matching assembly manner; both sides of the bottom of the moving assembly (10) are rotatably provided with fixed frames (1004) through rotating shafts, and the middle of the outer sides of the fixed frames (1004) are rotatably provided with clamping devices (1005) through bearings; the inner sides of the clamping devices (1005) are all set to be conical structures; two ends of a rotating shaft of the hub (1001) are both provided with conical structures; the top of the fixed frame (1004) is provided with a cross-shaped hole, sliding blocks (1006) are arranged in the cross-shaped hole in a sliding mode, and through holes are formed in the sliding blocks (1006); two groups of fixing plates (1007) are fixedly arranged at the bottoms of the moving assemblies (10), and screw holes are formed in the fixing plates (1007);

the bearing device (2) also comprises a reinforcing rod (201), a round handle (202) and a supporting foot pad (203); h-shaped sliding grooves are formed in the inner sides of the bearing devices (2), and reinforcing rods (201) are arranged in the sliding grooves in a sliding mode; a plurality of groups of pin holes are transversely formed in the middle of the reinforcing rod (201), one side of the end part of the bearing device (2) is provided with the pin holes, and the bearing device (2) can be longitudinally fixed with the reinforcing rod (201) through pin connection; the middle of the outer end part of the reinforcing rod (201) is movably provided with a screw rod through threaded connection, the top of the screw rod is fixedly provided with a round handle (202), the bottom of the screw rod is fixedly provided with a supporting pad (203), and the distance between the round handle (202) and the supporting pad (203) exceeds the distance between the bottom of the traction type base (1) and the ground;

the lifting device (5) further comprises a nut (501), a tapered roller bearing (502) and a bevel gear (503); the main body of the lifting device (5) is a lead screw, a nut (501) is movably arranged on the outer side of the lead screw through threaded connection, and tapered roller bearings (502) are fixedly arranged on two sides of the nut (501) through interference fit; bevel gears (503) are fixedly arranged on the outer sides of the bottoms of the nuts (501);

a three-phase motor (12) is fixedly arranged on the rear side of the top of the traction base (1); four groups of bevel gears are arranged on two sides of the nut frame (6) and the lifting frame (7) through rotating shafts, and the bevel gears on the two sides are movably connected through chains; the top of the rear side of the traction type base (1) is rotatably provided with two groups of bevel gears through a shaft bracket structure, and the bevel gears are movably connected with a three-phase motor (12); the bevel gear at the rear side of the nut frame (6) is coaxially connected with a bevel gear connected with a three-phase motor (12);

the lifting frame (7) also comprises a sliding plate (701), a pulley (702) and a stop block (703); a sliding plate (701) is fixedly arranged in the middle of the rear side of the lifting frame (7), and a plurality of groups of pulleys (702) are fixedly arranged on two sides of the sliding plate (701) close to the outer two thirds; the front ends of the two sides of the lifting frame (7) are uniformly provided with a baffle block (703), and the inner side and the middle of the top of the baffle block (703) are both provided with round holes; the inner side of the lifting frame (7) is provided with a bearing seat (8) in a sliding way by matching a sliding block with a sliding rail;

the bearing seat (8) also comprises a handle (801); two groups of extension structures are integrally arranged on two sides of the outer end of the bearing seat (8), two groups of handles (801) are fixedly arranged on the two sides of the outer end of the bearing seat, and round holes are formed in the middle of the extension structures; the bearing seat (8) can be fixedly connected with the middle round hole of the stop block (703) through the round hole of the extension structure in a matching manner by a bolt or a lock catch; a top plate (9) is fixedly arranged at the top of the inner side of the bearing seat (8);

arc-shaped clamping blocks are integrally arranged on two sides of the top plate (9); the two ends of the rear side of the top plate (9) are fixedly provided with fixture block structures, pin holes are vertically formed in the fixture block structures, and the top plate (9) can be fixedly connected through a fixing pin which penetrates through the pin holes and is matched with a round hole in the top of the extension structure;

the clamping device (1005) can penetrate through the sliding block (1006) through a bolt and be inserted into the fixing plate (1007) for locking connection, and clamping rings (1003) are respectively clamped in conical structures on two sides of the rotating shaft of the hub (1001) and the clamping device (1005);

when the lifting device is used, two persons hold the handle (801) to pull out the bearing seat (8) to the outside, and the fixture block structures at the two ends of the rear side of the top plate (9) are aligned with the stop blocks (703) and are connected and fixed through pins; aligning a top plate (9) to the bottom plane of a frame body of an engine, winding and tensioning the frame body of the engine including the frame body to the top plate (9) by using an electric forklift or a rope matched with a rear partition plate (11), pushing back a bearing seat (8), stably moving the engine to the center of an installation mechanism by the bearing seat (8) through the assistance of a plurality of groups of pulleys (702), and fixing a handle (801) aligned with fixture block structures at two rear ends of the top plate (9) by matching with bolts; the traction type base (1) is fixed to the tail end of a tractor and moved to two wings of an airplane, a three-phase motor (12) is started by electrifying, the three-phase motor (12) drives four groups of nuts (501) to rotate in the same direction simultaneously through the composite linkage of bevel gears, and then drives a nut frame (6) and a lifting frame (7) to lift, and an engine can be assembled by lifting; when the wheel sleeve (1002) is worn to the extent that normal use is affected, the mounting mechanism is tilted, the bolt in the sliding block (1006) on the outer side of the wheel sleeve (1002) which needs to be detached is loosened, the fixing frame (1004) is lifted, and the wheel sleeve (1002) can be pulled out for replacement.