CN106545520A - Compressor impeller and pinion shaft attachment structure and its processing method - Google Patents
Compressor impeller and pinion shaft attachment structure and its processing method Download PDFInfo
- Publication number
- CN106545520A CN106545520A CN201610966392.6A CN201610966392A CN106545520A CN 106545520 A CN106545520 A CN 106545520A CN 201610966392 A CN201610966392 A CN 201610966392A CN 106545520 A CN106545520 A CN 106545520A
- Authority
- CN
- China
- Prior art keywords
- pinion shaft
- impeller
- tooth
- hole
- spindle nose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/076—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of compressor impeller and pinion shaft attachment structure, including impeller and pinion shaft, the hub disk tail end and the pinion shaft spindle nose end face coordinated with the impeller are provided with the end tooth for cooperating, through hole is set at the impeller center line, the pinion shaft centerline is threaded hole, and tensile bolt is connected in the screwed hole through the through hole and connects the impeller and the pinion shaft.Compressor impeller and pinion shaft attachment structure that the present invention is provided, assembling are simple, and assembly precision is high, without relative displacement.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly to a kind of compressor impeller and pinion shaft attachment structure and its
Processing method.
Background technology
Impeller is the critical component of assembled centrifugal compressor, is unique element to air-flow work done in compressor.Assembling
The impeller of formula compressor is cantilevered fashion, and impeller is connected with pinion shaft, by prime mover driven gear wheel, gear wheel linkage
The pinion shaft of movable vane wheel carries out work done.Existing impeller is connected for ring flange with pinion shaft connected mode, and impeller passes through spiral shell
Bolt tight, made impeller and the flange contact facings of pinion shaft that frictional force is produced during operating, is rubbed with this with pinion shaft
Wipe power to avoid the relative displacement that the flange of impeller and pinion shaft in operation process may occur.This connected mode exist with
Lower deficiency：
(1) installation difficulty is big, and assembly precision is relatively low.
(2) easy grinding end face of flange in installation process, causes to damage to rotor.
(3) after installing, in running, easily there is relative displacement with flange in impeller, increases the uneven amount of rotor, is unfavorable for
Stable operation.
The content of the invention
The technical problem to be solved is to provide a kind of assembling simply, and assembly precision is high, the pressure without relative displacement
Contracting machine impeller and pinion shaft attachment structure and its processing method.
To solve above-mentioned technical problem, the invention provides a kind of compressor impeller and pinion shaft attachment structure, including
Impeller and pinion shaft, the hub disk tail end and the pinion shaft spindle nose end face coordinated with the impeller are provided with phase
The end tooth for mutually coordinating, arranges through hole at the impeller center line, the pinion shaft centerline is threaded hole, tensile bolt
It is connected in the screwed hole through the through hole and the impeller and the pinion shaft is connected.
Further, the hub disk tail end is provided with the first dowel hole, and the pinion shaft spindle nose end face is arranged
There is the second dowel hole corresponding with the first dowel hole position, set in first dowel hole and the second dowel hole
Put when alignment pin is assembled to the impeller and pinion shaft and position.
Further, the end tooth is the profile of tooth pointed tooth of intermeshing triangle or is intermeshing convex concave side
Tooth.
Present invention also offers a kind of compressor impeller and the processing method of pinion shaft attachment structure, walk including following
Suddenly：
In the wheel disc tail end and pinion shaft spindle nose end processing end tooth of impeller；
Through hole is processed at impeller center line, in pinion shaft centerline thread mill drilling；
Locating and machining pin-and-hole is distinguished on impeller and pinion shaft, it is fixed by alignment pin when assembling impeller and pinion shaft
Position；
Tensile bolt is screwed in into the screwed hole of pinion shaft through impeller through hole, impeller is leaned on pinion shaft by alignment pin
Tightly；
Nut will be stretched；
Tensile bolt is carried out to be pre-stretched to the pretightning force of requirement by stretcher；
Continue to screw stretching nut；
Stretcher is unclamped, integral installation is completed and is matched somebody with somebody.
Further, the processing method of the end tooth of the wheel disc tail end of the impeller and pinion shaft spindle nose end face includes:
The end tooth shaft coupling of end tooth is machined with according to the wheel disc tail end of impeller and the size design of pinion shaft spindle nose end
Device；
After end tooth shaft coupling is machined, the end tooth of opposite end gear coupling carries out the intensity for including transmitting load and pretightning force
Check；
After the strength check of end tooth shaft coupling meets the requirements, 3D solid mould is obtained according to the machined parameters of end tooth shaft coupling
Type；
According to the three-dimensional entity model for obtaining, determine that lathe is each with reference to the mathematical model of lathe, end-toothed disc and cutter emery wheel
The motor control equation of axle；
Macro programming function according to digital control system carries out NC codes translation, ultimately generates nc program；
According to the nc program for generating, using wheel disc tail end and pinion shaft of the numerical control machining simulation system to impeller
Spindle nose end face carries out the Numerical Control Simulation processing of end tooth, and carries out error analyses using its " automatic-to compare " function, in the wheel of impeller
Disk tail end and pinion shaft spindle nose end face process end tooth.
The invention provides a kind of compressor, including described compressor impeller and pinion shaft attachment structure, the company
Binding structure includes impeller and pinion shaft, the hub disk tail end and the pinion shaft spindle nose end coordinated with the impeller
Face is provided with the end tooth for cooperating, and through hole is arranged at the impeller center line, and the pinion shaft centerline is threaded
Hole, tensile bolt are connected in the screwed hole through the through hole and connect the impeller and the pinion shaft.
The compressor impeller that the present invention is provided and pinion shaft attachment structure, impeller are connected by tensile bolt with pinion shaft
Connect, and by positioning finger setting, also, hub disk tail end is had in engagement process certainly with the end tooth of pinion shaft spindle nose end face
The function of dynamic centering so that impeller is simple with the assembly technology of pinion shaft, and assembly precision is high.In addition, hub disk tail end and
Pinion shaft spindle nose end face is meshed together by end tooth, have the advantages that transmitting torque it is big, without relative displacement, user's later stage pair
Compressor impeller is also extremely easy with maintenance with the maintenance of pinion shaft junction.
Description of the drawings
Fig. 1 is the structural representation of compressor impeller provided in an embodiment of the present invention and pinion shaft attachment structure；
Fig. 2 is the A-A profiles of compressor impeller provided in an embodiment of the present invention and pinion shaft joint face；
Fig. 3 is the M-M sectional views of compressor impeller provided in an embodiment of the present invention and the end tooth of pinion shaft attachment structure.
Specific embodiment
Referring to Fig. 1, a kind of compressor impeller provided in an embodiment of the present invention and pinion shaft attachment structure, including impeller 1
And the pinion shaft 2 coordinated with impeller 1.Wherein, 1 wheel disc tail end of impeller and pinion shaft spindle nose end face are provided with what is cooperated
End tooth 6,1 centerline of impeller arrange through hole 7, and 2 centerline of pinion shaft is threaded hole 8, and tensile bolt 3 passes through through hole 7
It is screwed onto in screwed hole 8 and impeller 1 and pinion shaft 2 is connected.
In order to start positioning action when connecting in impeller 1 and pinion shaft 2,1 wheel disc tail end of impeller is provided with the first positioning
Pin-and-hole, 2 spindle nose end face of pinion shaft are provided with the second dowel hole corresponding with the first dowel hole position, connect 1 He of impeller
During pinion shaft 2, when alignment pin 5 is installed in the first dowel hole and the second dowel hole impeller 1 and pinion shaft 2 being assembled
Positioned.
Referring to Fig. 2, the end tooth 6 for cooperating that 1 wheel disc tail end of impeller and 2 spindle nose end face junction of pinion shaft are arranged can
To be the profile of tooth pointed tooth, or intermeshing convex concave side's tooth of intermeshing triangle, as long as or other can nibble
The end tooth of conjunction can be with.
Referring to Fig. 3, as a kind of specific embodiment of the present invention, the 1 wheel disc tail end of impeller of the present embodiment and little tooth
The end tooth 6 that 2 spindle nose end face junction of wheel shaft is arranged is the profile of tooth pointed tooth of intermeshing triangle.
Due to being machined with the end tooth 6 for cooperating in 1 wheel disc tail end of impeller and 2 spindle nose end face junction of pinion shaft, end
Tooth 6 forms automatic centering function in engagement process, impeller 1 can be made simple with the assembly technology of pinion shaft 2, assembly precision
It is high.In addition, 1 wheel disc tail end of impeller and 2 spindle nose end face of pinion shaft are meshed together by end tooth 6, also with transmitting torque it is big,
Advantage without relative displacement.
The invention provides a kind of compressor impeller and the processing method of pinion shaft attachment structure, comprise the steps：
In the wheel disc tail end and 2 spindle nose end of pinion shaft processing end tooth 6 of impeller 1；
Through hole 7 is processed in 1 centerline of impeller, in 2 centerline thread mill drilling 8 of pinion shaft；
The locating and machining pin-and-hole on impeller 1 and pinion shaft 2, it is fixed by alignment pin 5 when assembling impeller 1 and pinion shaft 2
Position；
Tensile bolt 3 is screwed in into the screwed hole 8 of pinion shaft 2 through the through hole 7 of impeller 1, impeller 1 by alignment pin 5 with
Pinion shaft 2 is close to；
Stretching nut 4 is screwed；
Tensile bolt 3 is carried out being pre-stretched to the pretightning force of requirement by stretcher；
Continue to screw stretching nut 4；
Stretcher is unclamped, the integral installation for completing impeller 1 and pinion shaft 2 is matched somebody with somebody.
Wherein, the end tooth 6 of 2 spindle nose end face junction of 1 wheel disc tail end of impeller and pinion shaft is processed as follows：
The end tooth of end tooth is machined with according to the size design of the 2 spindle nose end of wheel disc tail end and pinion shaft of impeller 1 first
Shaft coupling, the load between end tooth shaft coupling are transmitted by the engagement between the upper lower tooth disk gear teeth.According to straight-tooth end tooth shaft coupling work(
Can require, when end tooth shaft coupling is processed, make whole working flank in totally continuous contact condition, load is along facewidth direction
Distribution is more uniform better, can reduce root flexure stress due to taking turns the reduction of root portion transitional region curvature, therefore should also make root as far as possible
Portion's transition arc curvature radius are the bigger the better.
After end tooth shaft coupling is machined, the end tooth of opposite end gear coupling carries out the intensity for including transmitting load and pretightning force
Check, the check analytic method is derived from based on material mechanics principle, and is contrasted with Finite element analysis results, which is relative by mistake
Difference is within 10%, it was demonstrated that change the correctness of method.
The strength check of end tooth shaft coupling meets the requirements, you can after carrying the maximum load of design requirement, is joined according to end tooth
The main machined parameters such as the pressure angle of axle device, the number of teeth, modulus, external diameter and bolt installation site obtain three-dimensional entity model.
Then according to the three-dimensional entity model for obtaining, the mathematical model of cutter emery wheel, bonding machine are derived by Equivalent Calculation
The mathematical model of bed, end-toothed disc and cutter emery wheel determines the motor control equation of each axle of lathe.
NC codes translation is carried out according still further to the macro programming function of Siemens 840 D in NC, numerical control is ultimately generated
Processor.
Finally, according to the nc program for generating, using wheel disc of the numerical control machining simulation system (Vericut) to impeller
Tail end and pinion shaft spindle nose end face carry out the Numerical Control Simulation processing of end tooth, and using " automatic-to compare " work(of Vericut programs
Processing result model can be carried out residual error analysis with designing a model, Discrepancy Report result is shown as 0, and (i.e. error is less than permission
Error amount).End tooth 6 is processed in the wheel disc tail end and 2 spindle nose end face of pinion shaft of impeller 1.
As peace cooperates in 1 wheel disc tail end of impeller and the processing of 2 spindle nose end face junction of pinion shaft according to said method
End tooth 6, the precision of the end tooth 6 of processing is very high, can make end tooth 6 that automatic centering function is formed in engagement process so that leaf
Wheel 1 is relatively simple with the assembly technology of pinion shaft 2, and assembly precision is higher.In addition, 1 wheel disc tail end of impeller and 2 axle of pinion shaft
End surface is meshed together by end tooth 6, also have the advantages that transmitting torque it is big, without relative displacement.
A kind of compressor that the present invention is provided, including described compressor impeller and pinion shaft attachment structure, the compression
Concrete structure reference above-described embodiment of machine impeller and pinion shaft attachment structure, as this compressor employs above-mentioned all realities
Apply whole technical schemes of example, therefore all beneficial effects that at least technical scheme with above-described embodiment is brought, here
No longer repeat one by one.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, which all should be covered
In the middle of scope of the presently claimed invention.
Claims (5)
1. a kind of compressor impeller and pinion shaft attachment structure, it is characterised in that：Including impeller and pinion shaft, the impeller
Wheel disc tail end and the pinion shaft spindle nose end face coordinated with the impeller are provided with the end tooth for cooperating, in the impeller
Through hole is set at heart line, and the pinion shaft centerline is threaded hole, and tensile bolt is connected to described through the through hole
The impeller and the pinion shaft are connected in screwed hole.
2. compressor impeller according to claim 1 and pinion shaft attachment structure, it is characterised in that：The hub disk
Tail end is provided with the first dowel hole, and the pinion shaft spindle nose end face is provided with corresponding with the first dowel hole position
Arrange alignment pin to fill the impeller and pinion shaft in second dowel hole, first dowel hole and the second dowel hole
Timing is positioned.
3. compressor impeller according to claim 1 and pinion shaft attachment structure, it is characterised in that：The end tooth is mutual
The profile of tooth pointed tooth of the triangle being meshed is intermeshing convex concave side's tooth.
4. the processing method of the compressor impeller described in a kind of claim 1 and pinion shaft attachment structure, it is characterised in that bag
Include following steps：
In the wheel disc tail end and pinion shaft spindle nose end processing end tooth of impeller；
Through hole is processed at impeller center line, in pinion shaft centerline thread mill drilling；
Locating and machining pin-and-hole is distinguished on impeller and pinion shaft, by positioning finger setting when assembling impeller and pinion shaft；
Tensile bolt is screwed in into the screwed hole of pinion shaft through impeller through hole, impeller is close to pinion shaft by alignment pin；
Nut will be stretched；
Tensile bolt is carried out to be pre-stretched to the pretightning force of requirement by stretcher；
Continue to screw stretching nut；
Stretcher is unclamped, integral installation is completed and is matched somebody with somebody.
5. the processing method of compressor impeller according to claim 4 and pinion shaft attachment structure, it is characterised in that institute
The processing method for stating the end tooth of the wheel disc tail end and pinion shaft spindle nose end face of impeller includes:
The end tooth shaft coupling of end tooth is machined with according to the wheel disc tail end of impeller and the size design of pinion shaft spindle nose end；
After end tooth shaft coupling is machined, the end tooth of opposite end gear coupling carries out the intensity school for including transmitting load and pretightning force
Core；
After the strength check of end tooth shaft coupling meets the requirements, three-dimensional entity model is obtained according to the machined parameters of end tooth shaft coupling；
According to the three-dimensional entity model for obtaining, each axle of lathe is determined with reference to the mathematical model of lathe, end-toothed disc and cutter emery wheel
Motor control equation, generates nc program；
According to the nc program for generating, using wheel disc tail end and pinion shaft spindle nose of the numerical control machining simulation system to impeller
End face carries out the Numerical Control Simulation processing of end tooth, and carries out error analyses, finally in the wheel disc tail end and pinion shaft spindle nose of impeller
End face processes end tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966392.6A CN106545520A (en) | 2016-10-31 | 2016-10-31 | Compressor impeller and pinion shaft attachment structure and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966392.6A CN106545520A (en) | 2016-10-31 | 2016-10-31 | Compressor impeller and pinion shaft attachment structure and its processing method |
Publications (1)
| Publication Number | Publication Date |
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| CN106545520A true CN106545520A (en) | 2017-03-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966392.6A Pending CN106545520A (en) | 2016-10-31 | 2016-10-31 | Compressor impeller and pinion shaft attachment structure and its processing method |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109145335A (en) * | 2017-06-28 | 2019-01-04 | 中国航发贵阳发动机设计研究所 | A method of wheel disc low cycle fatigue life is improved by pre-rotation |
| CN113280000A (en) * | 2021-06-22 | 2021-08-20 | 中国科学院工程热物理研究所 | End face tooth connecting structure with positioning function between impeller and main shaft |
| CN116123205A (en) * | 2023-04-20 | 2023-05-16 | 宁波东力传动设备有限公司 | Conical surface matched type shaft connecting structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109145335A (en) * | 2017-06-28 | 2019-01-04 | 中国航发贵阳发动机设计研究所 | A method of wheel disc low cycle fatigue life is improved by pre-rotation |
| CN113280000A (en) * | 2021-06-22 | 2021-08-20 | 中国科学院工程热物理研究所 | End face tooth connecting structure with positioning function between impeller and main shaft |
| CN113280000B (en) * | 2021-06-22 | 2022-09-16 | 中国科学院工程热物理研究所 | End face tooth connecting structure with positioning function between impeller and main shaft |
| CN116123205A (en) * | 2023-04-20 | 2023-05-16 | 宁波东力传动设备有限公司 | Conical surface matched type shaft connecting structure |
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Application publication date: 20170329 |
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