CN116787371A

CN116787371A - Butt joint device

Info

Publication number: CN116787371A
Application number: CN202210245056.8A
Authority: CN
Inventors: 赵岩; 任家海; 苏巧灵
Original assignee: AECC Commercial Aircraft Engine Co Ltd
Current assignee: AECC Commercial Aircraft Engine Co Ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2023-09-22

Abstract

The invention discloses a docking device, which is used for docking a front fulcrum component and a gas compressor in an engine, and comprises the following components: the supporting plate is used for receiving and positioning the front supporting point component; the connecting component is connected with the supporting plate and is used for being connected with power equipment; the connecting line of the connecting points of the opposite connecting assemblies passes through the center of the supporting plate, wherein the connecting points refer to the connecting positions of the connecting assemblies and the power equipment; the overturning assembly is connected with the supporting plate and used for transmitting power of the power equipment to drive the supporting plate to overturn so as to enable the front supporting point assembly and the air compressor in the front supporting point assembly to overturn. By adopting the invention, the overturning can be quickly performed, the overturning time of the front fulcrum component and the air compressor is shortened, so that when the front fulcrum component is not completely cooled to room temperature, the front fulcrum component can be overturned from a horizontal position to a vertical position, and the gap quantity between the front fulcrum component and the air compressor caused by shrinkage quantity due to cooling is reduced.

Description

Butt joint device

Technical Field

The invention relates to a butt joint device, in particular to a butt joint device applied to butt joint of a front fulcrum assembly and a gas compressor in an engine, and more particularly relates to a butt joint device for butt joint of a sleeve gear shaft of the front fulcrum assembly and a rotor shaft neck of the gas compressor in an aeroengine.

Background

The shaft neck of the high-pressure compressor rotor and the sleeve gear shaft of the front pivot component are provided with a plurality of sections of interference fit surfaces with the diameter of more than 0.10mm, the butt joint process needs to be positioned and pressed by a butt joint device, so that the high-pressure compressor rotor can smoothly pass through the sleeve gear shaft of the front pivot component in the butt joint process, the sleeve gear shaft can be cooled from 200 ℃ to normal temperature, the temperature difference of 180 ℃ can generate shrinkage with the axial direction of nearly 0.3mm, and the clearance between the front pivot component and the shaft shoulder of the front shaft neck is caused.

Disclosure of Invention

The invention aims to overcome the defect that in the prior art, a gap exists between a front fulcrum component and a compressor during assembly, and provides a butt joint device.

The invention solves the technical problems by the following technical scheme:

a docking device for docking a front fulcrum assembly and a compressor in an engine, the docking device comprising:

a support plate for receiving and positioning the front fulcrum assembly;

the connecting component is connected with the supporting plate and is used for being connected with power equipment; the connecting line of the connecting points of the opposite connecting assemblies passes through the center of the supporting plate, wherein the connecting points refer to the connecting positions of the connecting assemblies and the power equipment;

the overturning assembly is connected with the supporting plate and used for transmitting power of the power equipment to drive the supporting plate to overturn, so that the front supporting point assembly and the air compressor butted in the front supporting point assembly overturn.

In the scheme, the front fulcrum assembly can be supported and positioned through the supporting plate so as to facilitate the butt joint of the compressor and the front fulcrum assembly; the overturning assembly can act the power of the power equipment on the supporting plate so as to enable the front supporting point assembly and the air compressor to overturn; the connecting component can provide a rotation axis for overturning the supporting plate on one hand, and on the other hand, the connecting line of the connecting points of the opposite connecting components penetrates through the center of the supporting plate, so that the supporting plate can overturn around the center with the opposite center of gravity after the front supporting point component and the compressor are received, and the overturning is more stable. Therefore, the butt joint device can be used for rapidly overturning, so that the overturning time of the front fulcrum assembly and the air compressor is shortened, the front fulcrum assembly can be overturned from the horizontal position to the vertical position when not completely cooled to the room temperature, and the gap amount between the front fulcrum assembly and the air compressor caused by the shrinkage amount caused by cooling is reduced.

Preferably, the intersection point of the center lines of the corresponding flipping assemblies passes through the center of the support plate.

Preferably, the connecting assembly comprises a connecting piece, the connecting piece comprises a first end, a journal portion and a second end, and the first end, the journal portion and the second end are sequentially arranged;

the first end is fixedly connected with the supporting plate; the journal portion is for journaling with an extension of the power plant; the second end is provided with an inner hole, and the shaft neck part and the extending shaft neck form cylindrical surface matching through the inner hole.

In the scheme, the power equipment can be connected with the power equipment through the journal part and the second end, and the first end can be connected with the supporting plate, so that the output power of the power equipment is transmitted to the supporting plate to drive the supporting plate, a front supporting point component arranged on the supporting plate and the air compressor to overturn; in addition, the second end is also provided with an inner hole, and the inner hole can form cylindrical surface matching with the power equipment, so that the connection between the connecting piece and the power equipment is more reliable, and the transmission of output power is more stable.

Preferably, the connecting assembly further comprises a rotating part, the rotating part comprises an outer sleeve and an inner sleeve, the outer sleeve is connected with the end face of the second end, the inner sleeve is rotatably connected with the outer sleeve, the inner sleeve is provided with an inner hole, and the inner hole is used for being matched with the extending shaft neck.

In this scheme, through setting up rotation portion, can make between power equipment and the connecting piece rotate and connect, can make moreover between power equipment and the connecting piece form the cylinder cooperation.

Preferably, the overturning assembly comprises a body piece, wherein the body piece comprises an overturning part and a connecting part, and the overturning part is fixedly connected with the supporting plate through the connecting part; the turnover part is provided with a connecting hole which is used for connecting the power equipment.

In this scheme, can act on the backup pad through the body spare with the upset power of power equipment's output, drive the backup pad upset.

Preferably, a reinforcing rib is arranged between the overturning part and the connecting part;

and/or, the turnover part further comprises a lifting hole, and the lifting hole is used for a lifting tool to pass through.

In this scheme, can promote the structural strength of connecting piece through the strengthening rib, promote the reliability of connecting piece transmission upset power. Through setting up the lifting hole, can be before carrying out preceding fulcrum subassembly and compressor butt joint process, be convenient for be connected to power equipment with the interfacing apparatus on.

Preferably, the docking device further comprises a first positioning piece, and the first end of the connecting component is fixedly connected with the supporting plate through the first positioning piece;

and/or, the docking device further comprises a second positioning piece, and the connecting part of the overturning assembly is fixedly connected with the supporting plate through the second positioning piece.

In this scheme, coupling assembling and upset subassembly can be respectively through the setting element location of correspondence and fixed mounting to the backup pad in, and each setting element can adapt to the mounted position of correspondence in the backup pad, promotes the installation performance between coupling assembling and upset subassembly and the backup pad.

Preferably, the first positioning member includes a first portion for connecting with the support plate and a second portion for connecting with the first end; the shape of the first part is matched with the contour of the supporting plate; the thickness of the second part is larger than that of the first part so as to form a spigot to be abutted with the supporting plate;

and/or the second positioning piece comprises a third part used for being connected with the supporting plate and a fourth part used for being connected with the connecting part; the shape of the third part is matched with the contour of the supporting plate; the thickness of the fourth part is larger than that of the third part so as to form a spigot to be abutted with the supporting plate.

Preferably, the docking device further comprises a first fastener, a first through hole is formed in the supporting plate, and the first fastener penetrates through the first through hole and is used for being connected with the front fulcrum assembly.

In this scheme, can fix a position and install preceding fulcrum subassembly to the backup pad through first fastener to when compressor and preceding fulcrum subassembly butt joint, avoid preceding fulcrum subassembly off tracking and dislocation and lead to assembly error.

Preferably, the docking device further comprises an adjusting member, the adjusting member is disposed on one side of the supporting plate, and the adjusting member is used for being connected with a portion of the compressor extending out of one side of the supporting plate so as to adjust the axial position of the compressor.

In this scheme, can further adjust the axial position of compressor through the regulating part to can further reduce the clearance volume between preceding fulcrum subassembly and the compressor.

Preferably, the docking device is used for docking the sleeve gear shaft of the front fulcrum assembly and the rotor shaft neck of the compressor.

The invention has the positive progress effects that: the front fulcrum assembly can be supported and positioned through the supporting plate so as to facilitate the butt joint of the compressor and the front fulcrum assembly; the overturning assembly can act the power of the power equipment on the supporting plate so as to enable the front supporting point assembly and the air compressor to overturn; the connecting component can provide a rotation axis for overturning the supporting plate on one hand, and on the other hand, the connecting line of the connecting points of the opposite connecting components penetrates through the center of the supporting plate, so that the supporting plate can overturn around the center with the opposite center of gravity after the front supporting point component and the compressor are received, and the overturning is more stable. Therefore, the butt joint device can be used for rapidly overturning, so that the overturning time of the front fulcrum assembly and the air compressor is shortened, the front fulcrum assembly can be overturned from the horizontal position to the vertical position when not completely cooled to the room temperature, and the gap amount between the front fulcrum assembly and the air compressor caused by the shrinkage amount caused by cooling is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a docking device according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a partial schematic view of a connection assembly and a flip assembly of a docking apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of a connection assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a docking device according to an embodiment of the present invention when a front fulcrum assembly is provided;

fig. 6 is a partial schematic view of a compressor provided in accordance with an embodiment of the present invention with a front journal interface in a front fulcrum assembly.

Description of the reference numerals

Docking device 1

Support plate 10

First through hole 100

Connection assembly 20

Connector 210

First end 211

Journal portion 212

Second end 213

First positioning member 220

First portion 221

Second portion 222

Rotating part 230

Outer sleeve 231

Inner sleeve 232

Inner bore 233

Flipping assembly 30

Body member 310

Turnover part 311

Connection portion 312

Connection hole 313

Reinforcing rib 314

Lifting hole 315

Second positioning member 320

Third portion 321

Fourth portion 322

First fastener 600

Fastening bolt 610

Fastening nut 620

Adjusting member 700

Front pivot assembly 2

Mounting edge 401

Roller bearing spring 402

Ball bearing spring 403

Rolling element 404

Bearing outer ring 405

Bearing inner ring 406

Gear sleeve 407

Outer mounting edge 408 of spring support

Bearing casing 409

Rod bearing mounting hole 410

Inner ring 411 of roller bearing

Sealing track 412

Compressor 3

Journal 500

Conical wall 501

Neck 502

Shoulder end face 503

Journal positioning section 504

Detailed Description

The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.

The embodiment of the invention provides a docking device 1, wherein the docking device 1 is used for docking a front fulcrum assembly 2 and a compressor 3 in an engine, and as shown in fig. 1-5, the docking device 1 comprises:

a support plate 10 for receiving and positioning the front fulcrum assembly 2;

a connection assembly 20, the connection assembly 20 being connected with the support plate 10 and being used for connection with a power device; and, the connecting line of the connecting points of the opposite connecting assemblies 20 passes through the center of the supporting plate 10, wherein the connecting points refer to the connecting positions of the connecting assemblies 20 and the power equipment;

the overturning assembly 30 is connected with the supporting plate 10 and is used for transmitting power of the power equipment to drive the supporting plate 10 to overturn, so that the front supporting point assembly 2 and the compressor 3 butted in the front supporting point assembly 2 are overturned.

The front fulcrum assembly 2 can be received and positioned by the support plate 10 so as to facilitate the butt joint of the compressor 3 and the front fulcrum assembly 2; the overturning assembly 30 can apply the power of the power equipment to the supporting plate 10 so as to overturn the front fulcrum assembly 2 and the air compressor 3; the connection assembly 20 can provide a rotation axis for turning the support plate 10 on the one hand, and on the other hand, the connecting line of the connection points of the opposite connection assemblies 20 passes through the center of the support plate 10, so that the support plate 10 can be turned around the center opposite to the center of gravity after receiving the front fulcrum assembly 2 and the compressor 3, and the turning is more stable. Therefore, the butt joint device 1 can be used for rapidly overturning, so that the overturning time of the front fulcrum assembly 2 and the air compressor 3 is shortened, the front fulcrum assembly 2 can be overturned from the horizontal position to the vertical position when not completely cooled to the room temperature, and the gap amount between the front fulcrum assembly 2 and the air compressor 3 caused by shrinkage amount caused by cooling is reduced.

In a specific implementation, the overturning time of the front fulcrum assembly 2 and the air compressor 3 is shortened through the docking device 1, so that when the corresponding docking components in the front fulcrum assembly 2 are not completely cooled, the front fulcrum assembly 2 and the air compressor 3 can be in a vertical position, at the moment, the corresponding docking components in the front fulcrum assembly 2 still have expansion allowance due to high temperature, the air compressor 3 can dock into the corresponding docking components in the front fulcrum assembly 2 along the vertical direction by means of self gravity, after the corresponding docking components in the front fulcrum assembly 2 are cooled to room temperature, the corresponding docking components in the front fulcrum assembly 2 shrink, and after the radial shrinkage of the docking components in the front fulcrum assembly 2 is completed, the docking components in the front fulcrum assembly 2 can be in interference fit with the corresponding components in the air compressor 3. Therefore, the butt joint step can be simplified, and the interference fit surface of the front pivot component 2 and the air compressor 3 can be prevented from being in fit error.

Further described in connection with the corresponding specific mating parts of the front fulcrum assembly 2 and the compressor 3, the docking device 1 may be applied to, in particular, docking between the sleeve gear shaft 407 of the front fulcrum assembly 2 and the journal 500 of the rotor of the high-pressure compressor 3. However, the present invention should not be limited to only the abutting process between the sleeve gear shaft 407 of the front fulcrum assembly 2 and the journal 500 of the rotor of the high-pressure compressor 3, but may be suitably applied to the abutting process between other devices.

When the sleeve gear shaft 407 of the front fulcrum assembly 2 and the journal 500 of the rotor of the high-pressure compressor 3 are abutted, as shown in fig. 5 and 6, the front fulcrum assembly 2 includes a mounting side 401, a roller bearing pin 402, a ball bearing pin 403, a rolling body 404, a bearing outer ring 405, a bearing inner ring 406, a sleeve gear shaft 407, a pin outer mounting side 408, a bearing case 409, and a rod bearing mounting hole 410; wherein the sleeve gear 407 is mounted within the bearing inner ring 406. The front fulcrum assembly 2 further includes a roller bearing inner ring 411 and a sealing race 412, both the roller bearing inner ring 411 and the sealing race 412 being mounted on the pinion 407. As shown in fig. 5, the mounting edge 401 is located outside the side wall of the support plate 10. As shown in fig. 6, the journal 500 of the rotor of the high-pressure compressor 3 includes a tapered wall 501, a neck 502, a shoulder end surface 503, and a journal positioning section 504. As shown in fig. 6, the abutment between the front fulcrum assembly 2 and the compressor 3 refers to the abutment between the positioning section of the journal 500 of the compressor 3 and the socket gear 407 of the front fulcrum assembly 2; during the docking process, the sealing track 412 in the front fulcrum assembly 2 also needs to be attached to the shoulder end surface 503 of the journal 500 of the compressor 3.

As a preferred embodiment, the intersection of the centerlines of the corresponding flipping assemblies 30 passes through the center of the support plate 10.

As shown in fig. 1, the docking device 1 includes two connection assemblies 20, the two connection assemblies 20 are symmetrically connected to both sides of the support plate 10 and are arranged at 180 °, the two connection assemblies 20 can rotate along a rotation axis relative to the power equipment, the rotation axis is provided when the docking device 1 is turned over, and the support plate 10 can rotate around a connection line of connection points of the two connection assemblies 20. The docking device 1 further comprises two overturning assemblies 30, wherein the two overturning assemblies 30 are symmetrically connected to two sides of the supporting plate 10 and are arranged at an angle of 60 degrees; the two overturning assemblies 30 are fixedly connected with the power equipment, and can play a role in positioning the relative positions of the front supporting point assemblies 2 and the power equipment. In other embodiments, the two flipping assemblies 30 may have other angles of placement. And, the symmetry axes of the two connection assemblies 20 and the symmetry axes of the two flipping assemblies 30 coincide.

As shown in fig. 1, the support plate 10 may have a circular ring structure, and the support plate 10 of the circular ring structure may be adapted to the mounting edge 401 of the front fulcrum assembly 2; in other embodiments, the support plate 10 may have other shapes to fit the corresponding components to be docked. The link assembly 20 and the tilt assembly 30 are both connected at the outer edge of the support plate 10, and the inner edge of the support plate 10 can be used to accommodate the front fulcrum assembly 2.

In particular embodiments, the connector assembly 20 may take a variety of forms, and some possible embodiments are described below in connection with FIGS. 1-4.

As a preferred embodiment, as shown in fig. 1 to 3, the connection assembly 20 includes a connection member 210, the connection member 210 including a first end 211, a journal portion 212, and a second end 213, the first end 211, the journal portion 212, and the second end 213 being sequentially disposed; the first end 211 is fixedly connected with the support plate 10; the journal portion 212 is for connection with an extended journal 500 of a power plant; the second end 213 is provided with an internal bore 233 and the journal portion 212 is in cylindrical engagement with the protruding journal 500 via the internal bore 233.

In particular implementation, as shown in fig. 1 and 2, the first end 211, the journal portion 212, and the second end 213 are sequentially arranged along the radial direction of the support plate 10; the first end 211, the journal portion 212 and the second end 213 may have a columnar structure, and axes of the three may coincide.

As shown in fig. 2, the diameter of the journal portion 212 is smaller than that of the first end 211, so that a flange surface is formed between the journal portion 212 and the first end 211, and the journal portion can be connected with the support plate 10 through a fastener, so that the output power of the power device is transmitted to the support plate 10 to drive the support plate 10 and the front fulcrum assembly 2 and the compressor 3 disposed on the support plate 10 to turn over.

As a preferred embodiment, the docking device 1 further includes a first positioning member 220, and the first end 211 of the connection assembly 20 is fixedly connected to the support plate 10 through the first positioning member 220. The first positioning piece 220 can ensure the radial coaxiality of the journal portion 212 and the supporting plate 10, so as to ensure the space rotation position of the front fulcrum assembly 2.

The first positioning member 220 includes a first portion 221 for connection with the support plate 10 and a second portion 222 for connection with the first end 211; the shape of the first portion 221 is adapted to the contour of the support plate 10; the thickness of the second portion 222 is greater than the thickness of the first portion 221 to form a spigot in abutment with the support plate 10.

As shown in fig. 3, 4 and 5, the support plate 10 has a circular ring-shaped structure, and the first portion 221 has a circular arc shape and is adapted to the outer contour of the support plate 10. The spigot formed by the first portion 221 and the second portion 222 abuts against the surface of the support plate 10, thereby ensuring coaxiality between the first positioning member 220 and the connecting member 210 such that the journal portion 212 is radially coaxial with the support plate 10. Wherein the shape of the second part may be adapted to the contour of the surface of the support plate 10.

The first portion 221 of the first positioning member 220 may be coupled to the support plate 10 by a screw, and the first end 211 of the connection member 210 may be coupled to the second portion 222 of the first positioning member 220 by a screw.

As shown in fig. 2, the diameter of the journal portion 212 is smaller than the diameter at the second end 213; the power plant has a journal 500 connection 312 that mates with the journal 212 to effect connection of the power plant to the connector 210; in addition, the journal portion 212 has a predetermined axial length, so as to ensure that the connecting portion 312 of the journal 500 extending from the power device can effectively and reliably cooperate with the journal portion 212. Further, the connector 210 may also be connected to the power plant by a connection pin.

As a preferred embodiment, the connection assembly 20 further comprises a rotating part 230, the rotating part 230 comprising an outer sleeve 231 and an inner sleeve 232, the outer sleeve 231 being connected to the end face of the second end 213, the inner sleeve 232 being rotatably connected to the outer sleeve 231, the inner sleeve 232 being provided with an inner bore 233, the inner bore 233 being adapted to form a cylindrical fit with the protruding journal 500.

As shown in fig. 2, the end surface of the second end 213 of the connector 210 has a groove, and the rotating part 230 is disposed in the groove. The outer sleeve 231 has an outer edge extending in the radial direction, which is connected to the end surface of the second end 213 by a fastener such as a screw. The diameter of the inner bore 233 in the inner sleeve 232 may be a small clearance fit with the power plant extending journal 500 connection 312, and the depth of the inner bore 233 is slightly greater than the length of the journal 500 connection 312, thereby enabling the journal portion 212 to form a cylindrical fit with the journal 500 connection 312; so that the connection between the connector 210 and the power plant is more reliable and the transmission of the output power is smoother. In specific implementation, the clearance value between the connecting portion 312 of the journal 500 and the inner hole 233 can be determined through debugging, so that not only can the flexibility and manufacturability of assembly be ensured, but also the journal portion 212 can coaxially rotate with the connecting portion 312 of the journal 500 of the power device, and the spatial pose of the whole front fulcrum assembly 2 is ensured through the precise spatial pose of the journal portion 212.

In particular embodiments, the flipping assembly 30 may take a variety of forms, and some possible embodiments are described below in conjunction with fig. 1-5.

As a preferred embodiment, the flipping assembly 30 includes a body member 310, the body member 310 including a flipping portion 311 and a connection portion 312, the flipping portion 311 being fixedly connected to the support plate 10 through the connection portion 312; the flip portion 311 has a connection hole 313, and the connection hole 313 is used for power equipment connection.

As shown in fig. 2 and 3, the turnover part 311 and the connection part 312 may form an L-shaped structure, and the turnover part 311 and the connection part 312 may be welded together or integrally formed. The turnover part 311 may have a fan-shaped structure, the connection holes 313 may be disposed at a circumferential edge of the turnover part 311, and the turnover part 311 has a plurality of connection holes 313 uniformly distributed thereon. The flip portion 311 may be connected to the power apparatus by a fastener such as a bolt passing through the connection hole 313.

As shown in fig. 1 to 3, a reinforcing rib 314 is provided between the turnover portion 311 and the connection portion 312. The structural strength of the connector 210 can be improved through the reinforcing ribs 314, and the reliability of the connector 210 in transferring overturning power is improved. As shown in fig. 1, the stiffener 314 may be located at an intermediate position of the flipping assembly 30.

As shown in fig. 1 and 3, the overturning portion 311 further includes a lifting hole 315, and the lifting hole 315 is used for passing a lifting tool. So that the connection of the docking apparatus 1 to the power plant can be facilitated before the docking process of the front fulcrum assembly 2 and the compressor 3 is performed.

Specifically, the turnover part 311 is provided with two lifting holes 315, and the two lifting holes 315 are symmetrically arranged at two sides of the reinforcing rib 314. In the concrete implementation, the aperture of the lifting hole 315 can ensure that a conventional lifting rope passes through, so that the lifting appliance is convenient to connect. The strength of the lifting hole 315 needs to be checked, so that the aperture can meet the bearing requirement of the whole front supporting point component 2; and, the size of the opening of the lifting hole 315 needs to be verified through a test lifting test to ensure that the fluorescence detection result is qualified after test lifting, and the fluorescence detection result is qualified and needs to contain the contact part of the lifting appliance and the surrounding area thereof without cracks.

As a preferred embodiment, the docking device 1 further includes a second positioning member 320, and the connection portion 312 of the flip assembly 30 is fixedly connected to the support plate 10 through the second positioning member 320. The second positioning member 320 can be adapted to a corresponding mounting position on the support plate 10, so as to improve the mounting performance between the turnover assembly 30 and the support plate 10.

As shown in fig. 1 and 3, the second positioning member 320 includes a third portion 321 for coupling with the support plate 10 and a fourth portion 322 for coupling with the coupling portion 312; the shape of the third portion 321 is adapted to the contour of the support plate 10; the fourth portion 322 has a thickness greater than that of the third portion 321 to form a spigot in abutment with the support plate 10. The second positioning member 320 may have a similar structure to the first positioning member 220, and the hole for connection with the fourth member in the connection portion 312 may be located at both sides of the reinforcing rib 314.

As a preferred embodiment, the docking device 1 further includes a first fastener 600, a first through hole 100 is provided in the support plate 10, and the first fastener 600 passes through the first through hole 100 and is used to connect with the front fulcrum assembly 2.

As shown in fig. 1, the first through holes 100 are uniformly arranged around the circumferential direction of the inner edge of the support plate 10, and the first and second positioning members 220 and 320 further have grooves to expose the first through holes 100.

As shown in fig. 6, the first fastener 600 includes a fastening bolt 610 and a fastening nut 620, the support plate 10 can position the mounting edge 401 of the front fulcrum assembly 2, the fastening bolt 610 can pass through the first through hole 100 of the support plate 10 and the mounting edge 401 of the front fulcrum assembly 2, and the fastening nut 620 serves to press the mounting edge 401 of the front fulcrum assembly 2 against the support plate 10, thereby positioning and receiving the front fulcrum assembly 2. In addition, the front fulcrum bearing housing 409 may be connected to the support plate 10 by screws.

As a preferred embodiment, the docking device 1 further comprises an adjusting member 700, wherein the adjusting member 700 is disposed on one side of the support plate 10, and the adjusting member 700 is configured to be connected to a portion of the compressor 3 extending out of one side of the support plate 10, so as to adjust the axial position of the compressor 3.

As shown in fig. 6, the adjuster 700 may be an adjusting nut. When the journal 500 of the compressor 3 is butted into the sleeve gear shaft 407 of the front fulcrum assembly 2, the end part of the journal 500 extends out of the end face of the front fulcrum assembly 2 for a distance, and an adjusting nut can be connected with the extending part of the compressor 3, so that the journal 500 of the compressor 3 can be connected with the front fulcrum assembly 2 on one hand, and the axial position of the compressor 3 can be further adjusted by the adjusting nut during the butting process, so that the gap between the front fulcrum assembly 2 and the compressor 3 can be further reduced, and the axial gap can be controlled within 0.01 millimeter; after the butt joint is completed, the axial positions of the journal 500 of the compressor 3 and the front fulcrum assembly 2 can also be adjusted according to the requirements.

In the above embodiment, the power apparatus may be a roll-over frame.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

1. A docking device for docking a front fulcrum assembly and a compressor in an engine, the docking device comprising:

a support plate for receiving and positioning the front fulcrum assembly;

2. Docking apparatus according to claim 1 wherein the intersection of the centerlines of the respective flip assemblies passes through the center of the support plate.

3. The docking device of claim 1, wherein the connection assembly comprises a connection member comprising a first end, a journal portion, and a second end, the first end, the journal portion, and the second end being disposed in sequence;

4. A docking apparatus according to claim 3 wherein said connection assembly further includes a rotating portion including an outer sleeve and an inner sleeve, said outer sleeve being connected to an end face of said second end, said inner sleeve being rotatably connected to said outer sleeve, said inner sleeve being provided with said internal bore for mating with said protruding journal.

5. The docking apparatus of claim 1, wherein the flip assembly comprises a body member including a flip portion and a connecting portion, the flip portion being fixedly connected to the support plate by the connecting portion; the turnover part is provided with a connecting hole which is used for connecting the power equipment.

6. The docking apparatus according to claim 5, wherein a reinforcing rib is provided between the turnover part and the connection part;

7. The docking apparatus of claim 1, further comprising a first positioning member, wherein the first end of the connection assembly is fixedly coupled to the support plate via the first positioning member;

8. The docking apparatus of claim 7, wherein the first positioning member includes a first portion for coupling with the support plate and a second portion for coupling with the first end; the shape of the first part is matched with the contour of the supporting plate; the thickness of the second part is larger than that of the first part so as to form a spigot to be abutted with the supporting plate;

9. The docking apparatus of claim 1, further comprising a first fastener, wherein the support plate is provided with a first through hole, and wherein the first fastener passes through the first through hole and is configured to connect with the front fulcrum assembly.

10. A docking apparatus according to any one of claims 1 to 9 further comprising an adjustment member provided on one side of the support plate, the adjustment member being adapted to be coupled to a portion of the compressor extending beyond one side of the support plate to adjust the axial position of the compressor.

11. The docking apparatus of claim 1 wherein said docking apparatus is adapted to dock a sleeve gear shaft of said front fulcrum assembly with a rotor journal of said compressor.