阅读说明：本技术 一种用于多种发动机接口的安装固定装置及方法 (Mounting and fixing device and method for various engine interfaces ) 是由 张香华 王海宁 巩孟祥 张贤明 孙登洲 于 2021-08-27 设计创作，主要内容包括：一种用于多种发动机接口的安装固定装置及方法,属于航空发动机安装技术领域。所述用于多种发动机接口的安装固定装置,包括载具以及设置于载具的前支撑框架和后支撑框架,前支撑框架的底部设置有用于带动连接环滚转的滚转夹持机构以及用于带动滚转夹持机构前后移动的距离调节机构,连接环的内圈沿周向设置有若干个夹紧机构,用于夹紧发动机前连接点,后支撑框架底部转动设置有摆动轮机构,用于支撑发动机后连接点。所述用于多种发动机接口的安装固定装置及方法通过对不同型号发动机的安装固定进行补偿,实现多种发动机接口的通用安装固定,实现生产线的集成化。(A mounting and fixing device and method for various engine interfaces belong to the technical field of aero-engine mounting. The installation fixing device for the multiple engine interfaces comprises a carrier, a front supporting frame and a rear supporting frame, wherein the front supporting frame and the rear supporting frame are arranged on the carrier, the bottom of the front supporting frame is provided with a rolling clamping mechanism used for driving a connecting ring to roll and a distance adjusting mechanism used for driving the rolling clamping mechanism to move back and forth, the inner ring of the connecting ring is provided with a plurality of clamping mechanisms along the circumferential direction and used for clamping a front connection point of an engine, and the bottom of the rear supporting frame is rotatably provided with a swing wheel mechanism and used for supporting a rear connection point of the engine. The mounting and fixing device and the mounting and fixing method for the various engine interfaces compensate mounting and fixing of engines of different models, realize universal mounting and fixing of the various engine interfaces and realize integration of a production line.)

1. The mounting and fixing device for the interfaces of various engines is characterized by comprising a carrier, a front supporting frame and a rear supporting frame, wherein the front supporting frame and the rear supporting frame are arranged on the carrier;

the bottom of the front support frame is provided with a rolling clamping mechanism for driving the connecting ring to roll and a distance adjusting mechanism for driving the rolling clamping mechanism to move back and forth, and the inner ring of the connecting ring is circumferentially provided with a plurality of clamping mechanisms for clamping the front connecting point of the engine;

and a swinging wheel mechanism is rotatably arranged at the bottom of the rear support frame and used for supporting a rear connecting point of the engine.

2. The mounting and fixing device for multiple engine interfaces as claimed in claim 1, wherein the distance adjusting mechanism comprises a concave fixing frame fixedly arranged at the bottom of the front support frame, the fixing frame is provided with a first screw structure, a moving frame is arranged outside the first screw structure, two sides of the moving frame are slidably connected with the inner side guide rails of the fixing frame, and a screw of the first screw structure rotates to drive the moving frame to move back and forth along the fixing frame.

3. The mounting and fixing device for multiple engine interfaces according to claim 2, wherein the first screw structure comprises a first motor, a first gear is arranged at an output end of the first motor, the first gear is connected with a second gear rotatably arranged on the fixed frame through a chain, the second gear is fixedly connected with a first screw, the first screw is rotatably connected with the inner part of the movable frame, the first motor drives the first screw to rotate through the first gear, the chain and the second gear, and the first screw drives the movable frame to move back and forth along the fixed frame.

4. The mounting and fixing device for multiple engine interfaces as claimed in claim 2, wherein the rolling clamping mechanism comprises a connecting frame fixed at the bottom of the movable frame, two clamping frames are symmetrically arranged below the connecting frame, and the two clamping frames move oppositely or oppositely along the bottom of the connecting frame; the middle part of the connecting frame is symmetrically provided with rolling gear sets so as to drive the connecting ring to roll.

5. The mounting and fixing device for multiple engine interfaces according to claim 4, wherein the two clamping frames are rotatably connected with a bidirectional screw rod penetrating through the connecting frame, a sliding block is arranged at the top of each clamping frame, and the sliding block moves along a sliding rail below the connecting frame; the rolling gear set comprises a driving shaft arranged in the middle of the connecting frame, a driving gear is sleeved on the driving shaft, and the driving gear is connected with a driven gear rotatably arranged on the clamping frame through a chain; an axial positioning wheel is rotatably arranged below the clamping frame; and radial positioning wheels are arranged below two sides of the connecting frame.

6. The mounting and fixing device for multiple engine interfaces according to any one of claims 1, 2 and 4, wherein the swinging wheel mechanism comprises a mounting plate rotatably connected with the rear support frame, the mounting plate is provided with a second screw rod structure, the second screw rod structure is provided with a support, one end of the support is rotatably connected with a swinging wheel, the screw rod of the second screw rod structure rotates to drive the support to move left and right, and further the swinging wheel is driven to move to support the rear connection point of the engine.

7. The mounting and fixing device for multiple engine interfaces as claimed in claim 6, wherein a rotating shaft and a positioning plate are arranged at the top of the mounting plate, and the rotating shaft is sleeved on a fixed shaft at the bottom of the rear supporting frame; the positioning plate is provided with a positioning hole, and the positioning hole is connected with the bottom of the rear support frame through a positioning pin; the second lead screw structure comprises a second lead screw rotatably arranged in the support, a sliding rail fixedly arranged at the bottom of the mounting plate and a sliding block moving along the sliding rail, the sliding block is fixedly connected with the top of the support, and one side, away from the swinging wheel, of the second lead screw is connected with a hand wheel.

8. The mounting and fixing device for multiple engine interfaces according to any one of claims 1, 2 and 4, wherein the connecting ring is provided with annular grooves on both sides, and a baffle is slidably arranged below the outer sides of the annular grooves.

9. A mounting and fixing method for a plurality of engine interfaces, which adopts the mounting and fixing device for a plurality of engine interfaces of claim 1, and is characterized by comprising the following steps:

s1, clamping the front connection point of the engine through a clamping mechanism to enable the connection ring to be connected with the engine;

s2, hoisting the carrier, and adjusting the position of the moving frame through the distance adjusting mechanism to enable the distance between the radial positioning wheel and the swinging wheel mechanism to be the distance between the front connecting point and the rear connecting point of the engine; meanwhile, the position of the swing wheel mechanism is adjusted to be parallel to the axis of the engine;

s3, lowering the carrier to the position where the radial positioning wheel is in contact with the upper surface of the connecting ring, and meanwhile, enabling the swing wheel mechanism to be located below the rear connecting point of the engine;

s4, driving the two clamping frames to move relatively through the bidirectional screw rod, and enabling the ring grooves on the two sides of the connecting ring to be in contact with the axial positioning wheel and the driven gear; meanwhile, the position of the oscillating wheel mechanism is adjusted to be perpendicular to the axis of the engine, and the bracket is driven to move through the screw rod structure II, so that the oscillating wheel is in contact with the rear connecting point of the engine;

s5, the driving shaft drives the driven gear to rotate through the driving gear, the driven gear drives the connecting ring to roll, and then the engine is driven to roll, and installation is achieved.

10. The method of claim 9, wherein the step S1 further comprises the steps of: and arranging a transfer ring between the front connecting point of the engine and the clamping mechanism according to the thickness of the front connecting point of the engine.

Technical Field

The invention relates to the technical field of aeroengine installation, in particular to an installation fixing device and method for various engine interfaces.

Background

The existing engine is mainly fixed by two methods during assembly, wherein one method adopts an engine design interface which is fixed on an assembly transport vehicle by 3 points; the other method adopts an edge interface arranged in front of the engine, and an adapter ring is arranged on the edge interface and is fixed on the assembly vehicle together with the rear interface, however, any fixing method is only suitable for partial engines, and the universality is poor. In order to realize the integration of the production line, a new engine hoisting assembly platform is required, and in order to be matched with the use of the hoisting assembly platform, the design interface of the original engine cannot meet the hoisting requirement of the engine, and an interface is required to be unified; when the front mounting edge connector of the original engine is used, the distance between the front connecting point and the rear connecting point selected by engines of different models is different, and the engines contact with an assembly vehicle by gravity and cannot be directly hoisted, so that the two existing fixing methods are not suitable for assembling the engines on the hoisting assembly platform.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides an installation and fixation device and method for various engine interfaces, which realize the universal installation and fixation of various engine interfaces and the integration of a production line by compensating the installation and fixation of engines of different models.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a mounting and fixing device for various engine interfaces comprises a carrier, a front supporting frame and a rear supporting frame, wherein the front supporting frame and the rear supporting frame are arranged on the carrier;

the bottom of the front support frame is provided with a rolling clamping mechanism for driving the connecting ring to roll and a distance adjusting mechanism for driving the rolling clamping mechanism to move back and forth, and the inner ring of the connecting ring is circumferentially provided with a plurality of clamping mechanisms for clamping the front connecting point of the engine;

and a swinging wheel mechanism is rotatably arranged at the bottom of the rear support frame and used for supporting a rear connecting point of the engine.

Furthermore, the distance adjusting mechanism comprises a concave fixing frame fixedly arranged at the bottom of the front supporting frame, the fixing frame is provided with a first screw rod structure, a moving frame is arranged outside the first screw rod structure, two sides of the moving frame are in sliding connection with the inner side guide rail of the fixing frame, and the first screw rod of the first screw rod structure rotates to drive the moving frame to move back and forth along the fixing frame.

Furthermore, the first screw structure comprises a first motor, a first gear is arranged at the output end of the first motor, the first gear is connected with a second gear which is rotatably arranged on the fixed frame through a chain, the second gear is fixedly connected with a first screw, the first screw is rotatably connected with the inner part of the movable frame, the first motor drives the first screw to rotate through the first gear, the chain and the second gear, and the first screw drives the movable frame to move back and forth along the fixed frame.

Furthermore, the rolling clamping mechanism comprises a connecting frame fixedly arranged at the bottom of the movable frame, two clamping frames are symmetrically arranged below the connecting frame, and the two clamping frames move oppositely or back to back along the bottom of the connecting frame; the middle part of the connecting frame is symmetrically provided with rolling gear sets so as to drive the connecting ring to roll.

Further, the two clamping frames are rotatably connected with a bidirectional screw rod penetrating through the connecting frame, the tops of the clamping frames are provided with sliding blocks, and the sliding blocks move along a sliding rail below the connecting frame; the rolling gear set comprises a driving shaft arranged in the middle of the connecting frame, a driving gear is sleeved on the driving shaft, and the driving gear is connected with a driven gear rotatably arranged on the clamping frame through a chain; an axial positioning wheel is rotatably arranged below the clamping frame; and radial positioning wheels are arranged below two sides of the connecting frame.

Further, the swinging wheel mechanism include with back braced frame rotates the mounting panel of connecting, the mounting panel is provided with lead screw structure two, lead screw structure two is provided with the support, the one end of support is rotated and is connected with the swinging wheel, and lead screw structure two rotates and drives the support and remove about, and then drives the swinging wheel and remove in order to support the engine back tie point.

Furthermore, a rotating shaft and a positioning plate are arranged at the top of the mounting plate, and the rotating shaft is sleeved on a fixed shaft at the bottom of the rear supporting frame; the positioning plate is provided with a positioning hole, and the positioning hole is connected with the bottom of the rear support frame through a positioning pin; the second lead screw structure comprises a second lead screw which is rotatably arranged in the support, a sliding rail which is fixedly arranged at the bottom of the mounting plate and a sliding block which moves along the sliding rail, the sliding block is fixedly connected with the top of the support, the second lead screw is far away from one side of the swinging wheel, a hand wheel is connected with the second lead screw, and the hand wheel is rotated to drive the second lead screw to rotate.

Further, the both sides of go-between all are provided with the annular to realize the roll-over of go-between, the outside below of annular slides and is provided with the baffle.

The mounting and fixing method for the interfaces of various engines comprises the following steps:

s1, clamping the front connection point of the engine through a clamping mechanism to enable the connection ring to be connected with the engine;

s2, hoisting the carrier, and adjusting the position of the moving frame through the distance adjusting mechanism to enable the distance between the radial positioning wheel and the swinging wheel mechanism to be the distance between the front connecting point and the rear connecting point of the engine; meanwhile, the position of the swing wheel mechanism is adjusted to be parallel to the axis of the engine;

s3, lowering the carrier to the position where the radial positioning wheel is in contact with the upper surface of the connecting ring, and meanwhile, enabling the swing wheel mechanism to be located below the rear connecting point of the engine;

s4, driving the two clamping frames to move relatively through the bidirectional screw rod, and enabling the ring grooves on the two sides of the connecting ring to be in contact with the axial positioning wheel and the driven gear; meanwhile, the position of the oscillating wheel mechanism is adjusted to be perpendicular to the axis of the engine, and the bracket is driven to move through the screw rod structure II, so that the oscillating wheel is in contact with the rear connecting point of the engine;

s5, the driving shaft drives the driven gear to rotate through the driving gear, the driven gear drives the connecting ring to roll, and then the engine is driven to roll, and installation is achieved.

Further, the step S1 further includes the following steps: and arranging a transfer ring between the front connecting point of the engine and the clamping mechanism according to the thickness of the front connecting point of the engine.

The invention has the beneficial effects that:

1) the invention can compensate the distance difference between the selected front connecting point and the rear connecting point, the difference of the thickness of the mounting edge compensated by the front connecting point and the difference of the structure of the force bearing part adopted by the rear connecting point, thereby ensuring the uniform interface, reducing the difference among different engines and ensuring the operation of multiple engines on one assembly platform;

2) the universal fixing device and the universal fixing method are used for assembling various engines, so that the manufacturing cost of the switching tool is saved; the replacement process of the switching tool is simplified; time waste caused by tool replacement is reduced, and assembly efficiency is improved; the problem of space waste of tool storage is avoided, and the compensation method can be used for mounting and fixing other parts.

Additional features and advantages of the invention will be set forth in part in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural diagram of a mounting fixture for a variety of engine interfaces according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a distance adjustment mechanism provided in an embodiment of the present invention;

FIG. 3 is a schematic structural view of a roll clamping mechanism provided in accordance with an embodiment of the present invention;

FIG. 4 is a partial schematic view of a roll fixture and attachment ring assembly provided by an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a rocking wheel mechanism provided in an embodiment of the present invention;

FIG. 6 is a schematic view of a mounting fixture for multiple engine interfaces mounted to the front and rear connection points of an engine according to an embodiment of the present invention;

reference numerals in the drawings of the specification include:

1-vehicle, 2-front supporting frame, 3-rear supporting frame, 4-rolling clamping mechanism, 5-distance adjusting mechanism, 6-connecting ring, 7-clamping mechanism, 8-swinging wheel mechanism, 9-concave fixed frame, 10-screw rod structure I, 11-gear I, 12-gear II, 13-moving frame, 14-chain, 15-connecting frame, 16-guide rail, 17-clamping frame, 18-bidirectional screw rod, 19-slide block, 20-slide rail, 21-driving shaft, 22-driving gear, 23-driven gear, 24-axial positioning wheel, 25-radial positioning wheel, 26-supporting wheel, 27-mounting plate, 28-support, 29-swinging wheel, 30-rotating shaft, 31-positioning plate, 32-positioning hole, 33-positioning pin, 34-hand wheel, 35-ring groove, 36-baffle, 37-motor I, 38-motor II and 39-motor III.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "a," "an," "two," and "three" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In order to solve the problems in the prior art, as shown in fig. 1 to 6, the present invention provides a mounting and fixing device for various engine interfaces, which includes a carrier 1, and a front support frame 2 and a rear support frame 3 disposed on the carrier 1;

the bottom of the front support frame 2 is provided with a rolling clamping mechanism 4 for driving a connecting ring 6 to rotate and a distance adjusting mechanism 5 for driving the rolling clamping mechanism 4 to move back and forth, and the inner ring of the connecting ring 6 is provided with a plurality of clamping mechanisms 7 along the circumferential direction for clamping the front connection point of the engine;

the bottom of the rear supporting frame 3 is rotatably provided with a swinging wheel mechanism 8 for supporting the rear connecting point of the engine.

In this embodiment, the front connection point of the engine is the front mounting edge of the engine, the rear connection point of the engine is the rear bearing ring of the engine, two swinging wheel mechanisms 8 are provided, and the two swinging wheel mechanisms 8 are symmetrically arranged on the left side and the right side of the rear connection point of the engine.

As shown in fig. 1 and 2, the distance adjusting mechanism 5 includes a concave fixing frame 9 fixedly arranged at the bottom of the front support frame 2, the fixing frame is provided with a first screw structure 10, a moving frame 13 is arranged outside the first screw structure 10, two sides of the moving frame 13 are slidably connected with an inner side guide rail 16 of the fixing frame, and one screw of the first screw structure 10 rotates to drive the moving frame 13 to move back and forth along the fixing frame. The first screw structure 10 comprises a first motor 37, a first gear 11 is arranged at the output end of the first motor 37, the first gear 11 is connected with a second gear 12 which is rotatably arranged on the fixed frame through a chain 14, the second gear 12 is fixedly connected with a first screw, the first screw is rotatably connected with the inside of the movable frame 13, the first motor 37 drives the first screw to rotate through the first gear 11, the chain 14 and the second gear 12, the first screw drives the movable frame 13 to move back and forth along the fixed frame, and the distance between the connecting ring 6 and the oscillating wheel mechanism 8 is adjusted according to the distance between front and rear mounting points of different engines. In this embodiment, two gears 12 are provided.

As shown in fig. 3 and 4, the rolling clamping mechanism 4 includes a connecting frame 15 fixed at the bottom of the movable frame 13, two clamping frames 17 are symmetrically arranged below the connecting frame 15, and the two clamping frames 17 move along the bottom of the connecting frame 15 oppositely or back to back; the middle of the connecting frame 15 is symmetrically provided with a rolling gear set to drive the connecting ring 6 to rotate. The two clamping frames 17 are rotatably connected with a bidirectional screw 18 penetrating through the connecting frame 15, the top of each clamping frame 17 is provided with a sliding block 19, and the sliding block 19 moves along a sliding rail 20 below the connecting frame 15; the rolling gear set comprises a driving shaft 21 arranged in the middle of the connecting frame 15, a driving gear 22 is sleeved on the driving shaft 21, and the driving gear 22 is connected with a driven gear 23 rotatably arranged on the clamping frame 17 through a chain 14; an axial positioning wheel 24 is rotatably arranged below the clamping frame 17; radial positioning wheels 25 are arranged below two sides of the connecting frame 15. In this embodiment, the two-way lead screw 18 is connected with the second motor 38, the two-way lead screw 18 is a lead screw with opposite thread turning directions on two sides, two sides of the two-way lead screw 18 are respectively connected with the two holding frames 17 in a rotating manner, the two-way lead screw 18 is connected with the connecting frame 15 in a rotating manner through a bearing, the second motor 38 drives the two-way lead screw 18 to rotate, the two holding frames 17 are driven by the two-way lead screw 18 to move relatively or back to back along the slide rail 20 below the connecting frame 15, the two holding frames 17 move relatively, so as to clamp the connecting ring 6, the two holding frames 17 move back to back, so as to release the connecting ring 6. Driven gear 23 is provided with two, be provided with between two driven gear 23 with the supporting wheel 26 of being connected with holding frame 17 rotation, drive shaft 21 through motor three 39 and rotate, drive shaft 21 passes through driving gear 22, driven gear 23 and chain 14 and drives go-between 6 and rotate, drives go-between 6 through the frictional force on driven gear 23 and go-between 6 annular 35 surface and rotates, and at go-between 6 pivoted in-process, avoid chain 14 and go-between 6's rotation to take place to interfere through supporting wheel 26. The number of the axial positioning wheels 24 is 6, during actual use, the number of the axial positioning wheels 24 can be even as required, the axial positioning wheels 24 are arranged at two corners below each clamping frame 17, the number of the radial positioning wheels 25 is 2, and when the rolling gear set drives the connecting ring 6 to rotate, the axial positioning wheels 24 and the radial positioning wheels 25 position the connecting ring 6, so that the rolling stability of the engine is ensured.

As shown in fig. 5, the swing wheel mechanism 8 includes a mounting plate 27 rotatably connected to the rear support frame 3, the mounting plate 27 is provided with a second screw rod structure, the second screw rod structure is provided with a bracket 28, one end of the bracket 28 is rotatably connected to a swing wheel 29, the second screw rod structure of the second screw rod structure rotates to drive the bracket 28 to move left and right, and further drives the swing wheel 29 to move to support the rear connection point of the engine. In this embodiment, when the engine needs to be rolled, the engine is driven to rotate by the rolling clamping mechanism 4, the swing wheel 29 assists the engine to rotate, in actual operation, when the vehicle 1 descends, the swing wheel mechanism 8 is arranged in parallel with the axial direction of the engine to avoid interference with the invention during installation, and after the swing wheel mechanism 8 reaches two sides of the bottom of the engine, the swing wheel mechanism rotates to be arranged perpendicular to the axial direction of the engine to support the engine. The top of the mounting plate 27 is provided with a rotating shaft 30 and a positioning plate 31, and the rotating shaft 30 is sleeved on a fixed shaft at the bottom of the rear support frame 3; the positioning plate 31 is provided with a positioning hole 32, and the positioning hole 32 is connected with the bottom of the rear support frame 3 through a positioning pin 33; the second screw structure comprises a second screw rotatably arranged in the support 28, a slide rail 20 fixedly arranged at the bottom of the mounting plate 27 and a slide block 19 moving along the slide rail 20, the slide block 19 is fixedly connected with the top of the support 28, one side of the second screw, which is far away from the swinging wheel 29, is connected with a hand wheel 34, and the hand wheel 34 is rotated to drive the second screw to rotate. In this embodiment, the positioning plate 31 is a fan-shaped flat plate structure, the positioning plate 31 is provided with two positioning holes 32, the two positioning holes 32 are arranged at 90 degrees along the center of the rotating shaft 30, when the positioning device is used, the rotating shaft 30 is rotated to enable the swing wheel mechanism 8 to be parallel to or perpendicular to the axis of the engine, and then the positioning plate 31 and the bottom of the rear support frame 3 are fixed through the positioning pins 33. When the position of the oscillating wheel 29 needs to be moved, the hand wheel 34 is rotated to drive the second screw rod of the second screw rod structure to rotate, the second screw rod drives the support 28 to move left and right along the slide rail 20, so that the oscillating wheel 29 is far away from the rear mounting point of the engine or is in contact with the rear mounting point (a casing or a rear bearing ring) of the engine, and the oscillating wheels 29 which are rotatably connected with the support 28 through rotating shafts are adopted, so that the vibration caused by the fact that the rear mounting point is not circular is reduced, the stability is increased, and the positioning is facilitated.

In the invention, the two sides of the connecting ring 6 are both provided with the ring grooves 35 to realize the rolling of the connecting ring 6, and the baffle 36 is arranged below the outer sides of the ring grooves 35 in a sliding manner. In this embodiment, the connection ring 6 is of an annular structure, the axial positioning wheels 24 and the driven gears 23 are arranged in the annular grooves 35 on two sides of the connection ring 6 and are symmetrically arranged to ensure the stability of the rolling of the connection ring 6, and when the connection ring 6 drives the engine to roll, the baffle 36 is always positioned below the outer side of the annular groove 35 due to the self-weight effect, so that dust, oil, particles and the like are prevented from entering the annular groove 35, and meanwhile, the baffle 36 is prevented from interfering with the rolling clamping mechanism 4.

As shown in fig. 6, a method for mounting and fixing a plurality of engine interfaces, which uses the above mounting and fixing device for a plurality of engine interfaces, includes the following steps:

s1, clamping the front connection point of the engine through the clamping mechanism 7 to connect the connecting ring 6 with the engine;

s2, hoisting the carrier 1, and adjusting the position of the moving frame 13 through the distance adjusting mechanism 5 to enable the distance between the radial positioning wheel 25 and the swinging wheel mechanism 8 to be the distance between the front connecting point and the rear connecting point of the engine; meanwhile, the position of the swinging wheel mechanism 8 is adjusted to be parallel to the axis of the engine;

s3, lowering the carrier 1 to the position where the radial positioning wheel 25 is contacted with the upper surface of the connecting ring 6, and simultaneously, positioning the swinging wheel mechanism 8 below the rear connecting point of the engine;

s4, the two clamping frames 17 are driven to move relatively through the bidirectional screw 18, so that the ring grooves 35 on the two sides of the connecting ring 6 are in contact with the axial positioning wheel 24 and the driven gear 23; meanwhile, the position of the oscillating wheel mechanism 8 is adjusted to be vertical to the axis of the engine, and the bracket 28 is driven to move through the second screw rod structure, so that the oscillating wheel 29 is in point contact with the rear connecting point of the engine;

s5, the driving shaft 21 drives the driven gear 23 to rotate through the driving gear 22, the driven gear 23 drives the connecting ring 6 to roll, and further the engine is driven to roll, so that installation is achieved.

Specifically, step S1 further includes the following steps: according to the thickness of the front engine connecting point, an adapter ring is arranged between the front engine connecting point and the clamping mechanism 7. In the embodiment, whether the adapter ring needs to be installed is determined according to the thickness of the front connection point of the engine, if the thickness of the front connection point of the engine is smaller than the working range of the clamping mechanism 7, the adapter ring is installed at the front connection point of the engine, and the difference of the thicknesses of the front connection points of different engines is compensated through the adapter ring. The clamping mechanism 7 can be a structure which directly clamps and fixes the front connection point of the engine, and can also be a structure which is fixedly connected with the front connection point of the engine through a bolt.

In this embodiment, when the mounting and fixing device is hoisted, the carrier 1 is hoisted by the hoisting device, so as to hoist the engine.

The invention utilizes part of original engine interfaces to compensate for the difference of the positions of the front and rear connecting points of various engines as follows: according to the different thicknesses of the mounting edges, the adapter ring is adopted to compensate the thickness of the thin mounting edge machine type; the rear supporting frame 3 adopts a mode of compensating by the swinging wheel 29, so that the vibration in the rolling process is reduced as much as possible; aiming at the difference of the distance between the front and rear connection points (namely the engine interface) of the engine, the distance difference is compensated by adopting a mode of adjusting a distance adjusting mechanism 5; the invention compensates the deviation between the fixed points of various engines by the compensation mode, forms a new installation and fixation device and method suitable for various engines, has a unified interface, is suitable for hoisting an assembly platform, meets the hoisting requirement of the whole engine, reduces the number of the switching tools and realizes the integration of a production line.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.