CN215854866U

CN215854866U - Engine mounting device

Info

Publication number: CN215854866U
Application number: CN202121056446.8U
Authority: CN
Inventors: 张艳丽; 陈乃威; 白则群
Original assignee: AECC Commercial Aircraft Engine Co Ltd
Current assignee: AECC Commercial Aircraft Engine Co Ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-02-18
Anticipated expiration: 2031-05-17

Abstract

The engine installation device comprises a lifting device and a posture adjusting device. The lifting device has an adjustable height. The posture adjusting device is arranged above the lifting device and is provided with a lifting platform, and the lifting platform is used for supporting the engine, wherein the posture adjusting device is configured into a topological structure so as to allow the lifting platform to move to different heights and/or postures relative to the lifting device. By adopting the engine mounting device, the manual participation degree can be effectively reduced to a certain extent through the lifting device and the posture adjusting device, the labor cost is reduced, the risk is reduced, the posture fine adjustment of a plurality of degrees of freedom of the engine is realized, a foundation is provided for the automatic transportation and semi-automatic mounting work of the engine, and therefore the mounting efficiency and the mounting quality of the engine are effectively improved.

Description

Engine mounting device

Technical Field

The present invention relates to an engine mounting device.

Background

With the development of global trade integration, the number of commercial aircraft in service is increased day by day, the diversification of air routes and the lengthening of flight mileage improve the frequency of repairing and overhaul the commercial aircraft engine, and the aircraft engine is subjected to high-quality and high-efficiency disassembly and assembly. Meanwhile, the rapid development of aviation assembly technology also provides new challenges for aircraft engine installation technology.

The aero-engine has the installation problems of large volume, complex structure, small installation gap and the like, so that the precise attitude adjustment and positioning are difficult to realize when the aero-engine is assembled and disassembled, the labor capacity of the aero-engine accounts for one third or more of the total labor capacity of the airplane assembly, and the quality of the assembly and disassembly quality of the aero-engine can have important influence on the power performance of the airplane. The installation mode of the traditional commercial aircraft, especially the large commercial aircraft engine still adopts the original mode of manual butt joint and manual experience adjustment butt joint, the installation method is not only low in efficiency, but also the installation precision is difficult to guarantee, and the installation method can not adapt to the high-quality and high-efficiency assembly requirements of modern large aircraft manufacturing. The installation quality of an aircraft engine directly determines the final quality of an aircraft, and the final quality is urgently required to be improved as a key part of butt joint assembly of large components.

Against this background, an engine installation device is needed to be provided, which can perform accurate positioning and posture adjustment in the engine loading and unloading process, provide a foundation for realizing automatic transportation and semi-automatic installation work of the engine, effectively reduce the number of operators, save manpower resources, shorten the installation time, improve the production efficiency, and improve the aircraft production and overhaul loading and unloading efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an engine mounting device which can realize accurate posture adjustment and positioning when an engine is mounted and dismounted, so that the mounting and dismounting efficiency of airplane production and overhaul is improved.

The engine mounting device comprises a lifting device and a posture adjusting device, wherein the lifting device has adjustable height; the posture adjusting device is arranged above the lifting device and is provided with a lifting platform, and the lifting platform is used for supporting an engine; wherein the attitude adjusting device is configured in a topological structure to allow the lifting platform to move to different heights and/or attitudes with respect to the lifting device.

In one or more embodiments, the posture adjustment device further comprises a fixing plate, and the fixing plate is fixedly connected with the lifting device; the fixed plate and the lifting platform are provided with a plurality of power cylinders and spherical hinges therebetween, two ends of each power cylinder are respectively connected with the fixed plate and the lifting platform through the spherical hinges, and at least one part of the power cylinders is adjustable in length.

In one or more embodiments, the plurality of power cylinders are each adjustable in length.

In one or more embodiments, the lifting device includes a chassis, a plurality of scissor linkages, a lifting cylinder, and a platform, the plurality of scissor linkages and the lifting cylinder being mounted on the chassis, the lifting cylinder being configured to drive the plurality of scissor linkages to move the platform longitudinally.

In one or more embodiments, the lifting cylinder is arranged in the centre of the chassis.

In one or more embodiments, the lifting device further includes a plurality of rail assemblies, each rail assembly includes a guide rail and a slide rod, one of the slide rod and the guide rail is fixedly connected to the platform, and the other is fixedly connected to the chassis.

In one or more embodiments, the lifting platform includes a plurality of first connection portions and first extension portions, the first extension portions extend from a center of the lifting platform to the first connection portions, and each of the first connection portions is provided with a pair of the ball hinges.

In one or more embodiments, the fixing plate includes a plurality of second connecting portions and second extending portions extending from a center of the fixing plate to the second connecting portions, and a pair of the ball joints is disposed on each of the second connecting portions.

In one or more embodiments, in an orthographic projection along a top view angle, an included angle is formed between the first extending portion and the second extending portion, and a pair of spherical hinges on each first connecting portion is connected with the spherical hinges on two adjacent second connecting portions through the power cylinder.

In one or more embodiments, the engine mounting device further comprises a wheel assembly mounted below the lifting device.

Above-mentioned engine installation device through lifting devices and accent appearance device, can be to a certain extent effectual reduction artifical participation, reduces the human cost, reduces the risk, realizes the gesture fine setting of a plurality of degrees of freedom of engine, provides the basis for the automatic transportation and the semi-automatic installation work of engine to effectively improve the installation effectiveness and the installation quality of engine.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of an engine mounting device according to an embodiment.

FIG. 2 is a schematic diagram of an engine mounting apparatus in a lifted state according to an embodiment

Fig. 3 is a top view of a first pose of a pose adjustment apparatus according to an embodiment.

Fig. 4 is a perspective view of a first attitude of an attitude adjusting apparatus according to an embodiment.

FIG. 5 is a side view of a first pose of a pose adjustment apparatus according to an embodiment.

FIG. 6 is a top view of a second pose of a pose adjustment apparatus according to an embodiment.

Fig. 7 is a perspective view of a second pose of the pose adjustment apparatus according to an embodiment.

FIG. 8 is a side view of a second pose of a pose adjustment apparatus according to an embodiment.

FIG. 9 is a top view of a third pose of a pose adjustment apparatus according to an embodiment.

Fig. 10 is a perspective view of a third attitude of the attitude adjusting device according to an embodiment.

FIG. 11 is a side view of a third pose of a pose adjustment apparatus according to an embodiment.

Description of symbol mark

1 lifting device

2 base plate

3 guide rail

4 sliding rod

5 platform

6 posture adjusting device

7 lifting platform

8 power cylinder

9 spherical hinge

10 fixed plate

11 scissor type connecting rod

12 lifting cylinder

13 wheel assembly

14 engine

31 the other end of the slide rail assembly

41 one end of the slide rail assembly

71 first connection part

72 first extension part

81 end portion

101 second connection part

102 second extension part

111 connection terminal

Detailed Description

The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the utility model. It is noted that these and other figures which follow are merely exemplary and not drawn to scale and should not be considered as limiting the scope of the utility model as it is actually claimed.

As shown in fig. 1, the engine mount apparatus includes a lifting apparatus 1 and a posture adjusting apparatus 6. The lifting device 1 has an adjustable height, and the posture adjustment device 6 is arranged above the lifting device 1, which has a lifting platform 7, which lifting platform 7 is used to support the engine, so that the height of the engine 14 in the longitudinal direction is changed when the height of the lifting device 1 is adjusted. Wherein the posture adjusting device 6 is configured as a topological structure, and the lifting platform can be allowed to move to different heights and/or postures relative to the lifting device through the topological structure, so that the height and the posture of the engine 14 supported on the lifting platform 7 can be further adjusted, and a basis is provided for realizing semi-automatic installation work of the engine 14. Herein, it is understood that adjusting the posture of the engine 14 means adjusting the angle of the engine 14 in the horizontal plane and the angle with the horizontal direction.

The topological structure is also called a parallel mechanism (PM for short), and is a closed-loop mechanism which is formed by connecting a movable platform and a fixed platform through at least two independent kinematic chains, has two or more degrees of freedom, can realize six degrees of freedom at most and is driven in a parallel mode.

In one embodiment of the present engine mount, with continued reference to fig. 1 and 2, the attitude adjusting device 6 further includes a fixed plate 10. The fixed plate 10 is fixedly connected with the platform 5 of the lifting device 1, and a plurality of power cylinders 8 and spherical hinges 9 are arranged between the fixed plate 10 and the lifting platform 7, so that the posture adjusting device is arranged according to a topological structure. In the embodiment shown in the figures, the two ends of the power cylinder 8 are connected to the fixed plate 10 and the lifting platform 7 by means of a ball joint 9. Wherein at least a part of the plurality of power cylinders 8 is adjustable in length, and the end 81 of the power cylinder 8 can freely rotate relative to the fixed plate 10 and the lifting platform 7 by arranging the spherical hinge 9 on the fixed plate 10 and the lifting platform 7, so that the supported engine 14 can move along a plurality of degrees of freedom.

In other embodiments different from those shown in the drawings, the posture adjusting device may have a parallel structure with a different structure.

Referring to fig. 1 and 2, the lifting device 1 comprises a chassis 2, a scissor linkage 11, a lifting cylinder 12, a skid assembly and a platform 5. A plurality of scissor linkages 11 and a lifting cylinder 12 are mounted on the chassis, optionally with the lifting cylinder 12 being centrally located on the chassis 2 for driving the plurality of scissor linkages 11 to move longitudinally in unison. The connecting end 111 of the scissor type connecting rod 11 is fixedly connected with the platform 5, so that the lifting cylinder 12 can drive the scissor type connecting rod 11 to push the platform 5 to longitudinally move to a required position, and preliminary positioning during engine loading and unloading is realized. The arrangement of the lifting cylinder 12 in the centre of the chassis 2 enables a quick and smooth adjustment of the position in the height direction of the supported engine 14. In other suitable embodiments, the lifting cylinder 12 may be provided in plurality on the chassis.

The lifting device 1 further comprises a plurality of slide assemblies arranged between the chassis 2 and the platform 5. In one embodiment of the engine mounting device, the platform 5 has a rectangular structure, and the number of the slide rail assemblies is 4, which are respectively provided at four corners of the platform 5. Each sliding rail component comprises a guide rail 3 and a sliding rod 4, the sliding rod 4 can longitudinally slide relative to the guide rail 3, wherein one of the sliding rod 4 and the guide rail 3 is fixedly connected with the platform 5, and the other one is fixedly connected with the chassis 2. As shown in fig. 1, one end 41 of the slide rail assembly is fixedly connected to the platform 5, and the other end 31 of the slide rail assembly is fixedly connected to the chassis 2, so as to play a guiding role in the moving process of the platform 5, and realize the rapid and stable longitudinal movement of the platform 5.

In another embodiment, the plurality of power cylinders may each be adjustable in length, allowing more degrees of freedom for the engine 14.

Referring to fig. 3 to 5, the posture adjustment device 6 includes 6

power cylinders

8 and 12 ball joints 9. The lifting platform 7 includes a plurality of first connection portions 71 and first extension portions 72, the first extension portions 72 extend from the center of the lifting platform 7 to the first connection portions 71, and each first connection portion 71 is provided with a pair of ball hinges 9. The fixing plate 10 has a structure similar to that of the lifting platform 7, and includes a plurality of second connecting portions 101 and second extending portions 102, the second extending portions 102 extend from the center of the fixing plate 10 to the second connecting portions 101, and each second connecting portion 101 is provided with a pair of ball hinges 9. As shown in fig. 3, in an orthographic projection along a top view angle, an included angle is formed between the first extending portion 72 and the second extending portion 102 to ensure the structural stability of the posture adjusting device 6, and the pair of spherical hinges 9 on each first connecting portion 71 are respectively connected with the spherical hinges 9 on two adjacent second connecting portions 101 through the power cylinder 8. The posture adjusting device 6 based on the topological structure has the characteristics of high rigidity, stable structure, high bearing capacity, small dynamic load and high movement precision. The fixed plate 10 and the lifting platform 7, which adopt the structure as shown in the drawing, have a light weight.

The first posture of the posture adjusting device 6 is shown in fig. 3 to 5, and has a lifting platform 7 and a fixing plate 10 which are parallel. As shown in fig. 6 to 8, in the process of switching from the first posture to the second posture, the 6 power cylinders 8 simultaneously move upward by the same vertical distance in the longitudinal direction, so as to realize upward lifting adjustment of the engine 14. The third posture of the posture adjusting device 6 is as shown in fig. 9 to 11, and during the first switching to the third posture, the spacing cylinders of the 6 power cylinders 8 are simultaneously moved upward to incline the lifting platform 7, and referring to fig. 11, the lifting platform 7 has an inclined surface, and the fixing plate 10 has a horizontal surface, thereby realizing the inclination of the engine 14. In addition, the length of the power cylinder 8 is adjusted and meanwhile rotation is achieved through the spherical hinge 9, and translation of the engine 14 can be achieved.

Through the motion matching of the power cylinder 8 and the spherical hinge 9 of the coupling posture adjusting device 6, the engine 14 can move up and down, back and forth and left and right along with the lifting platform 7 in 6 degrees of freedom, so that the posture of the engine 14 can be finely adjusted, and accurate matching and installation are realized.

In another embodiment, the posture adjustment device 6 comprises a plurality of power cylinders 8, for example 8, so that the posture adjustment device 6 has more degrees of freedom, and more accurate position and angle adjustment is realized.

Furthermore, the engine mount further comprises a wheel assembly 13, the wheel assembly 13 being mounted below the chassis 2 to enable the engine mount to be moved over the ground.

The process of mounting the engine by using the engine mounting device is as follows:

first, the engine 14 is placed and fixed on the lifting platform 7, and the engine 14 is moved to below the engine compartment to be installed by the wheel assembly 13 installed below the chassis 2.

When the engine mounting device moves below the engine compartment, the lifting cylinder 12 provides upward lifting power to drive the scissor type connecting rod 11 to realize large-range longitudinal movement of the platform 5, so that the engine 14 fixed on the attitude adjusting device 6 is pushed to move upwards and enter a proper position in the engine compartment. In the process of longitudinal movement of the platform 5, the sliding rod 4 slides relative to the corresponding guide rail 3, so that the relative sliding function is realized. The raised state of the engine mount is shown in fig. 2.

The posture adjusting device 6 arranged on the platform 5 can further realize fine adjustment of the position and the angle of the engine 14 in 6 degrees of freedom through the rotation of the spherical hinge 9 and the length adjustment of the power cylinder 8, so that the centering and matching of the mounting hole, the lifting hook and the shaft are completed, and finally the installation of the engine 14 is realized.

By adopting the engine mounting device, the lift of the lifting cylinder 12 is adjusted through the lifting device 11, so that the purpose of lifting the engine 14 to the engine compartment upwards is achieved, the manual participation can be effectively reduced to a certain extent, the labor cost is reduced, and the risk is reduced; the lift range of the power cylinder 8 at different positions and the rotation angle of the power cylinder 8 around the spherical hinge 9 are adjusted through the posture adjusting device 6, so that the posture fine adjustment of multiple degrees of freedom of the engine is realized. The engine mounting device can provide a foundation for automatic transportation and semi-automatic mounting work of the engine 14, so that the mounting efficiency and the mounting quality of the engine 14 are effectively improved.

Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the utility model, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.

Claims

1. An engine mount device, characterized by comprising

A lifting device having an adjustable height; and

the posture adjusting device is arranged above the lifting device and is provided with a lifting platform, and the lifting platform is used for supporting an engine;

wherein the attitude adjusting device is configured in a topological structure to allow the lifting platform to move to different heights and/or attitudes with respect to the lifting device.

2. The engine mounting apparatus of claim 1, wherein said attitude adjustment apparatus further comprises a fixed plate, said fixed plate being fixedly connected to said lifting apparatus;

the fixed plate and the lifting platform are provided with a plurality of power cylinders and spherical hinges therebetween, two ends of each power cylinder are respectively connected with the fixed plate and the lifting platform through the spherical hinges, and at least one part of the power cylinders is adjustable in length.

3. The engine mounting arrangement of claim 2, wherein the plurality of power cylinders are each adjustable in length.

4. The engine mounting arrangement of claim 1, wherein the lifting device comprises a chassis, a plurality of scissor linkages and a lifting cylinder mounted on the chassis, and a platform for driving the plurality of scissor linkages to urge the platform to move longitudinally.

5. The engine mounting arrangement of claim 4, wherein said lift cylinder is centrally disposed on said chassis.

6. The engine mounting apparatus of claim 4, wherein said lifting device further comprises a plurality of rail assemblies, each of said rail assemblies comprising a rail and a slide bar, one of said slide bar and said rail being fixedly connected to said platform and the other of said slide bar and said rail being fixedly connected to said chassis.

7. The engine mounting apparatus of claim 2, wherein said lift platform includes a plurality of first connecting portions and first extending portions extending from a center of said lift platform to said first connecting portions, each of said first connecting portions having a pair of said ball joints disposed thereon.

8. The engine mounting apparatus of claim 7, wherein said fixed plate includes a plurality of second connecting portions and second extending portions extending from a center of said fixed plate to said second connecting portions, each of said second connecting portions having a pair of said ball joints disposed thereon.

9. The engine mounting device according to claim 8, wherein, in an orthographic projection along a top view angle, the first extending portion and the second extending portion form an included angle therebetween, and a pair of the spherical hinges on each first connecting portion is respectively connected with the spherical hinges on two adjacent second connecting portions through the power cylinder.

10. The engine mounting device of claim 1, further comprising a wheel assembly mounted below the lifting device.