CN105757130A - Engine turbine and compressor rotor connection and torque transmission device - Google Patents
Engine turbine and compressor rotor connection and torque transmission device Download PDFInfo
- Publication number
- CN105757130A CN105757130A CN201610243199.XA CN201610243199A CN105757130A CN 105757130 A CN105757130 A CN 105757130A CN 201610243199 A CN201610243199 A CN 201610243199A CN 105757130 A CN105757130 A CN 105757130A
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- China
- Prior art keywords
- rotor
- compressor rotor
- turbine
- turbine rotor
- attachment screw
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- 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.)
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Classifications
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- 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
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/04—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like with clamping hub; with hub and longitudinal key
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to an engine turbine and compressor rotor connection and torque transmission device which comprises a compressor rotor, a turbine rotor and a connecting screw.The compressor rotor is provided with an inner spline.The turbine rotor is provided with an outer spline matched with the inner spline of the compressor rotor.One end of the connecting screw is provided with a thread and installed in an inner cavity of the compressor rotor, and the other end of the connecting screw is provided with a step and clamped on a step of an inner cavity of the turbine rotor.An outer spline is arranged on the step of the connecting screw and matched with the inner spline on the inner cavity of the turbine rotor.The outer spline on the connecting screw is of a hollow structure and is axially provided with six evenly-distributed through grooves.The device can be smoothly installed and detached and has the advantages of being simple in structure, stable in connection, low in cost, reliable in work, convenient to install and the like.
Description
Technical field
The present invention is a kind of connecting device, and especially a kind of engine turbine is connected torsion transmitter with compressor rotor, it is possible to achieve the turbine rotor of gas-turbine unit and compressor rotor is coupled together and transmits axial force and moment of torsion.
Background technology
In gas-turbine unit, compressor rotor work process can produce axial force forward, pause generally up to the even hundreds thousand of cattle of tens thousand of newton, and turbine rotor can produce axial force backward, can pause up to the even hundreds thousand of cattle of tens thousand of newton equally, if both axial forces are undertaken by electromotor ball bearing completely, it is likely to cause ball bearing to destroy, rotor fails, therefore, need a kind of device, turbine rotor and compressor are coupled together, two rightabout active forces are balanced out major part, thus protecting ball bearing safety, this device also to play the effect that turbine torque passes to compressor simultaneously.Connecting torsion transmitter kind at present more, being broadly divided into following 3 kinds: 1st kind is pin or key transmission moment of torsion, and threaded, this apparatus structure is simple, but torsion pass moment is less；2nd kind adopts end tooth torsion pass and carries out self-centering, and center pull rod connects, and the moment of torsion of this structure transmission is big, feels relieved accurately, but part processing precision is high, and material requirements is high, and processing cost is high, and assembling needs Special pull machine, assembles complicated cost also high.3rd kind for spline torsion pass and utilizes flank to feel relieved, and threaded, this structure can transmit high torque, advantage of lower cost, but needs to design axial attachment structure, and the parts that device comprises are many and structure is complicated, and complexity is decomposed in assembling, and operability is not high.
Summary of the invention
It is an object of the invention to provide a kind of engine turbine and be connected torsion transmitter with compressor rotor, connection and the transmission of bigger moment of torsion of compressor rotor and turbine rotor can be realized, and the moment of torsion with transmission is big, parts machining required precision is not high and simple in construction, advantage that processing cost is low, there is stable connection simultaneously, compact conformation, assembles and dismantles simple, easy to use etc..
The concrete technical scheme of the present invention is: engine turbine is connected torsion transmitter and includes compressor rotor, turbine rotor, attachment screw with compressor rotor, described compressor rotor is provided with internal spline, turbine rotor is provided with external splines and coordinates with the internal spline of compressor rotor, attachment screw one end is provided with screw thread and is arranged in compressor rotor inner chamber, the other end is provided with step and is stuck on the step of turbine rotor inner chamber, the stepped locations of described attachment screw is additionally provided with external splines, and coordinates with the internal spline arranged on turbine rotor inner chamber；The described spline sections on attachment screw is hollow-core construction, and axially has groove, and described groove is uniform 6.
When the present invention assembles, first attachment screw is loaded from turbine rotor inner chamber, again turbine rotor is inserted in compressor rotor, and make the spline of compressor rotor and turbine rotor match, play the effect of torsion pass, now use frock by the external splines radial compression of attachment screw, the groove due to this external splines radial design, it radially can shrink, diameter reduces, and disengage with the internal spline on turbine rotor, then screw it is rotationally connected, so that attachment screw is threaded in compressor rotor inner chamber, then the radial force of attachment screw external splines is discharged, attachment screw returns to original position, attachment screw is made to coordinate with turbine rotor internal spline, complete to install.During dismounting, first by the external splines radial compression of frock just attachment screw, departing from turbine rotor internal spline, be then rotatably connected screw, is pulled down by attachment screw from compressor rotor, finally just can turbine rotor and compressor rotor be separated.
The present invention is operationally, turbine rotor is subject to axial tension backward, making attachment screw and turbine rotor fit at step place and compress, the axial force that turbine rotor is passed over by attachment screw passes to compressor rotor by screw thread, and prevents compressor rotor and turbine rotor from disengaging.For preventing screw thread from operationally rotating disengagement, attachment screw is connected with turbine rotor by spline, to ensure the synchronous axial system of itself and rotor-support-foundation system, thus having reached both to have delivered between two rotors moment of torsion, in turn ensure that relative position is constant, serve the effect connecting torsion pass, and in this way, compressor rotor axial force forward and turbine rotor axial force major part backward are cancelled out each other, thus axial load when alleviating the work of compressor ball bearing.Present invention employs spline to connect, and by screw thread and step location, there is transmission moment of torsion big, positioning reliable advantage, meanwhile, the present invention only designs an attachment screw, and it is provided with axial groove, and by compressing the position of axial groove, it is possible to realize installation and removal smoothly, have that simple in construction, stable connection, cost be low, reliable operation, the feature such as easy for installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of attachment screw；
Fig. 3 is the side view of Fig. 2.
Detailed description of the invention
As shown in the figure, engine turbine is connected torsion transmitter and includes compressor rotor 1, turbine rotor 2, attachment screw 3 with compressor rotor, described compressor rotor 1 is provided with internal spline, turbine rotor 2 is provided with external splines and the internal spline with compressor rotor 1 coordinates, attachment screw 3 one end is provided with screw thread and is arranged in compressor rotor 1 inner chamber, the other end is provided with step and is stuck on the step of turbine rotor 2 inner chamber, the stepped locations of described attachment screw 3 is additionally provided with external splines, and coordinates with the internal spline arranged on turbine rotor 2 inner chamber；The described spline sections on attachment screw 3 is hollow-core construction, and axially has groove 4, and described groove 4 is uniform 6.
Claims (2)
1. an engine turbine is connected torsion transmitter with compressor rotor, it is characterized in that, described device includes compressor rotor (1), turbine rotor (2), attachment screw (3), described compressor rotor (1) is provided with internal spline, turbine rotor (2) is provided with external splines and the internal spline with compressor rotor (1) coordinates, attachment screw (3) one end is provided with screw thread and is arranged in compressor rotor (1) inner chamber, the other end is provided with step and is stuck on the step of turbine rotor (2) inner chamber, the stepped locations of described attachment screw 3 is additionally provided with external splines, and coordinate with the internal spline arranged on turbine rotor (2) inner chamber；The described spline sections on attachment screw (3) is hollow-core construction, and axially has groove (4).
2. engine turbine as claimed in claim 1 is connected torsion transmitter with compressor rotor, it is characterised in that described groove (4) is uniform 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610243199.XA CN105757130B (en) | 2016-04-19 | 2016-04-19 | A kind of engine turbine connect torsion transmitter with compressor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610243199.XA CN105757130B (en) | 2016-04-19 | 2016-04-19 | A kind of engine turbine connect torsion transmitter with compressor rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105757130A true CN105757130A (en) | 2016-07-13 |
| CN105757130B CN105757130B (en) | 2018-07-17 |
Family
ID=56335321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610243199.XA Active CN105757130B (en) | 2016-04-19 | 2016-04-19 | A kind of engine turbine connect torsion transmitter with compressor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757130B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224016A (en) * | 2016-08-31 | 2016-12-14 | 中国南方航空工业(集团)有限公司 | Turbine rotor, electromotor and the method improving engine rotor centering reliability |
| CN114278606A (en) * | 2021-12-28 | 2022-04-05 | 北京动力机械研究所 | Multi-working-medium helium gas compressor main shaft structure |
| WO2022227584A1 (en) * | 2021-04-28 | 2022-11-03 | 浙江意动科技股份有限公司 | Novel torque transmission connection structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1813769A1 (en) * | 2006-01-27 | 2007-08-01 | Snecma | Assembly with reduced radial dimensions between a turbine shaft and a compressor shaft journal in a turbomachine |
| CN102927141A (en) * | 2012-10-24 | 2013-02-13 | 哈尔滨东安发动机（集团）有限公司 | Coupler assembly |
| EP2589748A2 (en) * | 2011-11-07 | 2013-05-08 | United Technologies Corporation | Tie bolt employing differential thread |
| CN103939449A (en) * | 2014-04-10 | 2014-07-23 | 哈尔滨东安发动机（集团）有限公司 | Stop threaded sleeve |
| CN205715317U (en) * | 2016-04-19 | 2016-11-23 | 哈尔滨东安发动机（集团）有限公司 | A kind of engine turbine is connected torsion transmitter with compressor rotor |
-
2016
- 2016-04-19 CN CN201610243199.XA patent/CN105757130B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1813769A1 (en) * | 2006-01-27 | 2007-08-01 | Snecma | Assembly with reduced radial dimensions between a turbine shaft and a compressor shaft journal in a turbomachine |
| EP2589748A2 (en) * | 2011-11-07 | 2013-05-08 | United Technologies Corporation | Tie bolt employing differential thread |
| CN102927141A (en) * | 2012-10-24 | 2013-02-13 | 哈尔滨东安发动机（集团）有限公司 | Coupler assembly |
| CN103939449A (en) * | 2014-04-10 | 2014-07-23 | 哈尔滨东安发动机（集团）有限公司 | Stop threaded sleeve |
| CN205715317U (en) * | 2016-04-19 | 2016-11-23 | 哈尔滨东安发动机（集团）有限公司 | A kind of engine turbine is connected torsion transmitter with compressor rotor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224016A (en) * | 2016-08-31 | 2016-12-14 | 中国南方航空工业(集团)有限公司 | Turbine rotor, electromotor and the method improving engine rotor centering reliability |
| WO2022227584A1 (en) * | 2021-04-28 | 2022-11-03 | 浙江意动科技股份有限公司 | Novel torque transmission connection structure |
| CN114278606A (en) * | 2021-12-28 | 2022-04-05 | 北京动力机械研究所 | Multi-working-medium helium gas compressor main shaft structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105757130B (en) | 2018-07-17 |
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