CN105757130B - A kind of engine turbine connect torsion transmitter with compressor rotor - Google Patents
A kind of engine turbine connect torsion transmitter with compressor rotor Download PDFInfo
- Publication number
- CN105757130B CN105757130B CN201610243199.XA CN201610243199A CN105757130B CN 105757130 B CN105757130 B CN 105757130B CN 201610243199 A CN201610243199 A CN 201610243199A CN 105757130 B CN105757130 B CN 105757130B
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- Prior art keywords
- rotor
- compressor rotor
- attachment screw
- turbine
- inner cavity
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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 present invention relates to a kind of engine turbines to connect torsion transmitter with compressor rotor, including compressor rotor, turbine rotor, attachment screw, the 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 in compressor rotor inner cavity, the other end is provided with step and is stuck on the step of turbine rotor inner cavity, the stepped locations of the attachment screw are additionally provided with external splines, and coordinate with the internal spline being arranged on turbine rotor inner cavity；Spline sections on the attachment screw are hollow-core construction, and are axially provided with straight slot, and the slot is uniformly distributed 6.The present invention can smoothly realize installation and removal, have the characteristics that simple in structure, stable connection, at low cost, reliable operation, easy for installation.
Description
Technical field
The present invention is a kind of attachment device, and especially a kind of engine turbine connect torsion transmitter with compressor rotor, can
The turbine rotor of gas-turbine unit and compressor rotor are connected with realization and transmit axial force and torque.
Background technology
In gas-turbine unit, forward axial force is will produce in the compressor rotor course of work, it is generally up to tens thousand of
Newton even hundreds thousand of newton, and turbine rotor will produce axial force backward, and it is even hundreds thousand of to be equally up to tens thousand of newton
Newton, if both axial forces are undertaken by engine ball bearing completely, it is likely that ball bearing can be caused to destroy, rotor fails, because
This, needs a kind of device, turbine rotor and compressor is connected, and the active force of two opposite directions is balanced out big portion
Point, to protect ball bearing safe, this device will also play the role of turbine torque passing to compressor simultaneously.Connect at present
It is more to connect torsion transmitter type, is broadly divided into following 3 kinds：1st kind is transmitted torque for pin or key, is threadedly coupled, the device knot
Structure is simple, but torsion pass torque is smaller；2nd kind uses end tooth torsion pass and carries out self-centering, center pull rod connection, what which transmitted
Torque is big, and centering is accurate, but part processing precision is high, and material requirements is high, high processing costs, and assembly needs Special pull machine,
The complicated cost of assembly is also high.3rd kind, for spline torsion pass and using tooth side centering, is threadedly coupled, which can transmit high torque,
Advantage of lower cost, but need to design axial connection structure, the parts that device includes are more and complicated, and assembly is decomposed multiple
Miscellaneous, operability is not high.
Invention content
The object of the present invention is to provide a kind of engine turbines to connect torsion transmitter with compressor rotor, may be implemented to calm the anger
The connection of machine rotor and turbine rotor and larger torque transmit, and the torque with transmission is big, parts machining precision is wanted
Advantage not high and simple in structure, that processing cost is low is sought, while there is stable connection, compact-sized, assembly and dismounting are simple, make
With facilitating.
The specific technical solution of the present invention is：It includes that compressor turns that engine turbine, which connect torsion transmitter with compressor rotor,
Son, turbine rotor, attachment screw, the compressor rotor are provided with internal spline, turbine rotor be provided with external splines and with pressure
The internal spline of mechanism of qi rotor coordinates, and attachment screw one end is provided with screw thread and in compressor rotor inner cavity, and the other end is set
It being equipped with step and is stuck on the step of turbine rotor inner cavity, the stepped locations of the attachment screw are additionally provided with external splines, and
Coordinate with the internal spline being arranged on turbine rotor inner cavity；Spline sections on the attachment screw are hollow-core construction, and axis
To straight slot is provided with, the slot is uniformly distributed 6.
When the present invention assembles, first attachment screw is packed into from turbine rotor inner cavity, then turbine rotor is inserted into compressor and is turned
In son, and the spline of compressor rotor and turbine rotor is made to match, play the role of torsion pass, uses tooling that will connect spiral shell at this time
The external splines radial compression of nail, due to external splines radial design slot, radial direction can be shunk, and diameter reduces, and and turbine
Internal spline on rotor disengages, and screw is then rotatablely connected, to make to be threaded into compressor rotor inner cavity on attachment screw
In, the radial load of attachment screw external splines is then discharged, attachment screw is restored to original position, and attachment screw is made to turn with turbine
Sub- internal spline cooperation, completes installation.When dismounting, first with tooling by by the external splines radial compression of attachment screw, with turbine rotor
Internal spline is detached from, and be then rotatably connected screw, and attachment screw is removed from compressor rotor, finally can be by turbine rotor
It is separated with compressor rotor.
At work, turbine rotor is made attachment screw and turbine rotor in step to the present invention by axial tension backward
Place is bonded and compresses, and the axial force that turbine rotor passes over is passed to compressor rotor by attachment screw by screw thread, and is prevented
Only compressor rotor and turbine rotor disengage.To prevent screw thread from rotating disengagement at work, attachment screw passes through spline and turbine
Rotor connects, and to ensure its synchronous rotation with rotor-support-foundation system, both delivers torque between two rotors to reach, in turn ensures
Relative position is constant, plays the role of connecting torsion pass, and in this way, the forward axial force of compressor rotor and whirlpool
The axial force of wheel rotor backward is largely cancelled out each other, to alleviate the axial load when work of compressor ball bearing.This hair
It is bright to use spline connection, and positioned by screw thread and step, have transmission torque big, positions reliable advantage, meanwhile, this hair
It is bright only to design an attachment screw, and it is provided with axial groove, and the position by compressing axial groove, it can smoothly realize installation
And dismounting, have the characteristics that simple in structure, stable connection, at low cost, reliable operation, easy for installation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of attachment screw；
Fig. 3 is the side view of Fig. 2.
Specific implementation mode
As shown, engine turbine connect with compressor rotor torsion transmitter include compressor rotor 1, turbine rotor 2,
Attachment screw 3, the compressor rotor 1 are provided with internal spline, turbine rotor 2 be provided with external splines and with compressor rotor 1
Internal spline cooperation, 3 one end of attachment screw is provided with screw thread and in 1 inner cavity of compressor rotor, and the other end is provided with platform
Rank is simultaneously stuck on the step of 2 inner cavity of turbine rotor, and the stepped locations of the attachment screw 3 are additionally provided with external splines, and and whirlpool
The internal spline cooperation being arranged on 2 inner cavity of wheel rotor；Spline sections on the attachment screw 3 are hollow-core construction, and axial
It is provided with straight slot 4, the slot 4 is uniformly distributed 6.
Claims (2)
1. a kind of engine turbine connect torsion transmitter with compressor rotor, which is characterized in that the device includes compressor
Rotor (1), turbine rotor (2), attachment screw (3), the compressor rotor (1) are provided with internal spline, and turbine rotor (2) is set
It is equipped with external splines and coordinates with the internal spline of compressor rotor (1), attachment screw (3) one end is provided with screw thread and is mounted on and calms the anger
In machine rotor (1) inner cavity, the other end is provided with step and is stuck on the step of turbine rotor (2) inner cavity, the attachment screw
(3) stepped locations are additionally provided with external splines, and coordinate with the internal spline being arranged on turbine rotor (2) inner cavity；The connection
Spline sections on screw (3) are hollow-core construction, and are axially provided with straight slot (4).
2. engine turbine as described in claim 1 connect torsion transmitter with compressor rotor, which is characterized in that the slot
(4) it is uniformly distributed 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 CN105757130A (en) | 2016-07-13 |
| CN105757130B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224016B (en) * | 2016-08-31 | 2018-01-12 | 中国南方航空工业(集团)有限公司 | Turbine rotor, engine and the method for improving engine rotor centering reliability |
| CN113153921A (en) * | 2021-04-28 | 2021-07-23 | 浙江意动科技股份有限公司 | Novel torque transmission connecting 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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105757130A (en) | 2016-07-13 |
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