CN103846613A - Connection method and connection structure of tapered threads of impeller and rotating shaft of turbine of supercharger - Google Patents
Connection method and connection structure of tapered threads of impeller and rotating shaft of turbine of supercharger Download PDFInfo
- Publication number
- CN103846613A CN103846613A CN201410055009.2A CN201410055009A CN103846613A CN 103846613 A CN103846613 A CN 103846613A CN 201410055009 A CN201410055009 A CN 201410055009A CN 103846613 A CN103846613 A CN 103846613A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- turbine
- screw thread
- turbine wheel
- shaft
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
Abstract
The invention relates to a connection method and a connection structure of tapered threads of an impeller and a rotating shaft of a turbine of a supercharger. According to structural parameters, operating temperature and a maximum operation torque of the rotating shaft of the turbine, and coefficients of thermal expansion of materials of the impeller and the rotating shaft of the turbine, an external taper thread, a 180-degree transition arc and an end face A of the impeller of the turbine, and an external taper thread and an end face B of the rotating shaft are processed through reasonably designing parameters of the tapered thread of the rotating shaft of the turbine and parameters of an assembly process, by adopting a measure of heating the portion of the internal taper thread of the rotating shaft, the impeller and the rotating shaft of the turbine are assembled together through tightening the threads according to the determined tightening torque, and then other parts of the impeller of the turbine with the taper thread are processed according to the structural parameters of the rotating shaft of the turbine. According to the connection method and the connection structure, a reliable connection between the turbine wheel and the rotating shaft of the turbine can be realized, the requirements for the connection strength of the rotating shaft of the turbine of the supercharger can be met, and the technological process is simple and easy to implement engineering application.
Description
Technical field
The invention belongs to automobile-used turbocharging technology field, be specifically related to tapered tread method of attachment and the syndeton of a kind of booster turbine impeller and rotating shaft.
Background technology
Turbine shaft is one of critical component of turbocharger, is formed by connecting by turbine wheel and rotating shaft.Due to turbine shaft High Rotation Speed in the course of the work, the bonding strength of turbine wheel and rotating shaft not only affects the reliability of turbine shaft, and affects the reliability of whole turbocharger.At present, the turbine wheel of vehicle turbocharger mainly adopts cast nickel-base alloy K418 material, and rotating shaft adopts 42CrMo alloy steel material.For the rotating shaft of the turbine wheel of being manufactured by K418 alloy and the manufacture of 42CrMo steel alloy, in engineering, generally adopt the technique such as friction welding, electron beam welding to realize the reliable connection of turbine shaft.But, because the density of K418 alloy is 8.9 × 10
3kg/m
3, the turbine wheel rotary inertia of being manufactured by K418 alloy is larger, and the over-emitting black exhaust phenomenon of engine in the time of starting and acceleration is comparatively serious.
For reducing the rotary inertia of turbocharger rotor, weaken the over-emitting black exhaust phenomenon of engine in the time of starting/acceleration, vehicle supercharger turbine impeller can adopt the cast ti al alloy material that specific strength is higher.The density of titanium-aluminium alloy is 3.87 × 10
3kg/m
3be about 43% of K418 alloy density, simultaneously, titanium-aluminium alloy has good high-temperature behavior and antioxygenic property, the booster turbine impeller that adopts titanium-aluminium alloy to manufacture, can effectively reduce the rotary inertia of turbocharger rotor, improve the transient response of turbocharged engine, improve engine performance.Because Ti-Al alloy material belongs to intermetallic compound, adopt conventional welding method, be difficult to realize reliable connection the between titanium-aluminum alloy turbine impeller and the rotating shaft of 42CrMo alloy, be difficult to meet the bonding strength requirement of vehicle supercharger turbine rotating shaft.
Aspect rotating shaft of supercharger turbine connection, the patent No. is respectively 97125874.0 and discloses and a kind ofly adopted mechanical interference method of attachment to realize the technological approaches that titanium-aluminum alloy turbine is connected with the rotating shaft of 42CrMo alloy with two patents of 200810110548.6.The patent No. is that 201310166758.8 patent discloses a kind of interference thread and the anti-loosening turbine wheel combining of pin and rotating shaft method of attachment and syndeton of adopting, this method of attachment can realize the reliable of turbine shaft with syndeton and be connected, but has titanium aluminium turbine wheel internal thread and the large problem of pin hole difficulty of processing.The patent No. is two circular arc self-locking interference thread methods of attachment and the structure that 201310250054.9 patent discloses a kind of titanium aluminium turbine and rotating shaft, this method of attachment can realize the reliable of turbine shaft with syndeton and be connected, but exist, the two circular arc internal thread machining difficulty of titanium aluminium turbine wheel are large, the screw thread magnitude of interference is difficult to the problems such as effectively guarantee.The patent No. is through hole method of attachment and the syndeton that 201310294220.5 patent discloses a kind of titanium aluminium turbine wheel and rotating shaft, this method of attachment can realize the reliable of turbine shaft with syndeton and be connected, but titanium aluminium turbine wheel center need to process through hole, this can cause the remarkable reduction of turbine wheel heart portion intensity.The patent No. is screw thread interference locking method of attachment and the syndeton that 201310384372.4 patent discloses a kind of titanium aluminium rotating shaft of supercharger turbine, this method of attachment also can realize the reliable of turbine shaft with syndeton and be connected, but the magnitude of interference difficulty of processing of screw thread is large, and in turbine shaft, need to install pin, strengthened the dynamic balancing difficulty of turbine shaft.
Summary of the invention
The present invention is directed to the connectivity problem between booster turbine impeller and rotating shaft, propose tapered tread method of attachment and the syndeton of a kind of booster turbine impeller and rotating shaft.By tapered tread syndeton parameter and the assembly technology parameter of appropriate design turbine wheel and rotating shaft, can realize being reliably connected lastingly between booster turbine impeller and rotating shaft, meet the bonding strength requirement of rotating shaft of supercharger turbine.
Technical scheme of the present invention:
The tapered tread syndeton of a kind of booster turbine impeller and rotating shaft, comprise booster turbine impeller 2 and rotating shaft 1, it is characterized in that: described rotating shaft 1 adopts conical inner screw thread, described turbine wheel and rotating shaft threaded engagement part adopt circular cone external screw thread, the rotation direction when rotation direction of seeing described tapered tread from turbine end is worked with turbine shaft is identical, the taper theta of tapered tread is 4-10 °, the back of the body dish of described turbine wheel and screw thread transition portion have 180 ° of transition arcs, gapped between turbine wheel A end face and rotating shaft B end face, gap length is 1-3 times of thread pitch.
Preferably in rotating shaft 1, the reach of conical inner screw thread is 0.6-1.2 times of screw thread nominal diameter, and pitch is 0.05-0.08 times of screw thread nominal diameter.The reach of this scope and pitch are conducive to the firm of assembling.
In the externally threaded Length Ratio rotating shaft 1 of circular cone that preferably turbine wheel 2 and rotating shaft threaded engagement part adopt, the little 1-2 of the reach times pitch of conical inner screw thread, is convenient to assembling.
A tapered tread method of attachment for booster turbine impeller and rotating shaft, comprises the following steps:
A, determine the tapered tread syndeton parameter of turbine shaft: according to the structural parameters of turbine shaft, determine the tapered tread syndeton parameter of turbine wheel and rotating shaft, rotating shaft adopts conical inner screw thread, and reach is 0.6-1.2 times of screw thread nominal diameter; Turbine wheel adopts circular cone external screw thread, and external thread length is than the little 1-2 of rotating shaft internal thread length times pitch, and pitch is 0.05-0.08 times of screw thread nominal diameter; The taper angle θ of tapered tread is 4-10 °; From turbine end, thread rotary orientation is identical with turbine shaft rotation direction; Between the back of the body dish of turbine wheel and circular cone external screw thread, have 180 ° of transition arcs, gapped between turbine wheel A end face and rotating shaft B end face, gap length is 1-3 times of thread pitch;
B, determine the tapered tread assembly technology parameter of turbine shaft: according to the structural parameters of the thermal coefficient of expansion of turbine wheel and rotating shaft material and turbine shaft, operating temperature and maximum working torque, determine turbine wheel and the rotating shaft screw-down torque in Screw assembly process and the heating-up temperature at rotating shaft conical inner screw thread position;
The processing of c, turbine wheel circular cone external screw thread and 180 ° of transition arcs and A end face: according to turbine wheel tapered tread syndeton parameter definite in step a, the circular cone external screw thread of processing turbine wheel, 180 ° of transition arcs and A end face;
The processing of d, rotating shaft conical inner screw thread and B end face: according to rotating shaft tapered tread syndeton parameter definite in step a, processing rotating shaft conical inner screw thread and B end face;
The Screw assembly of e, turbine wheel and rotating shaft: take to heat the measure at rotating shaft conical inner screw thread position, according to screw-down torque definite in step b, screw turbine wheel and rotating shaft are assembled together by screw thread;
F, according to the structural parameters of turbine shaft, the turbine shaft that completes tapered tread assembling is carried out to the processing at other positions.
The invention has the beneficial effects as follows:
Tapered tread method of attachment and the syndeton of booster turbine impeller and rotating shaft, by structural parameters and the assembly technology parameter of appropriate design turbine wheel and rotating shaft tapered tread, the reliable connection of rotating shaft of supercharger turbine can be realized, connectivity problem between titanium-aluminum alloy turbine impeller and the rotating shaft of 42CrMo alloy can be solved.Adopt tapered tread syndeton and in assembling process, take to heat internal thread position to be connected with the interference that the measure of controlling screw-down torque can realize screw thread effectively, ensure the bonding strength of turbine shaft.After turbine wheel adopts circular cone external screw thread can ensure better that turbine wheel is heated in the course of the work, screw connection point does not get loose.Carry on the back between thread segment and adopt 180 ° of transition arcs at the wheel of turbine wheel, can avoid producing stress raisers.Turbine shaft, on the basis that completed Screw assembly, then is carried out the processing at other positions, can improve the overall machining accuracy of turbine shaft.This method of attachment and syndeton are simple, and bonding strength is reliable lastingly, can meet the through engineering approaches application needs of vehicle supercharger turbine rotating shaft.
Brief description of the drawings
Fig. 1 is the tapered tread syndeton schematic diagram of rotating shaft of supercharger turbine.
1 rotating shaft 2 turbine wheels
Detailed description of the invention
The tapered tread syndeton of a kind of booster turbine impeller and rotating shaft, comprise booster turbine impeller and rotating shaft, it is characterized in that, described rotating shaft adopts conical inner screw thread, reach is 0.6-1.2 times of screw thread nominal diameter, pitch is 0.05-0.08 times of screw thread nominal diameter, described turbine wheel and rotating shaft threaded engagement part have circular cone external screw thread, the little 1-2 of the externally threaded Length Ratio rotating shaft of circular cone internal thread length times pitch, the rotation direction when rotation direction of seeing described tapered tread from turbine end is worked with turbine shaft is identical, the taper angle θ of tapered tread is 4-10 °, the back of the body dish of described turbine wheel and screw thread transition portion have 180 ° of transition arcs, gapped between turbine wheel A end face and rotating shaft B end face, gap length is 1-3 times of thread pitch.
A tapered tread method of attachment for booster turbine impeller and rotating shaft, comprises the following steps:
A, determine the tapered tread syndeton parameter of turbine shaft.According to the structural parameters of turbine shaft, determine the tapered tread syndeton parameter of turbine wheel and rotating shaft, rotating shaft adopts conical inner screw thread, and reach is 0.6-1.2 times of screw thread nominal diameter, and pitch is 0.05-0.08 times of screw thread nominal diameter; Turbine wheel adopts circular cone external screw thread, and external thread length is than the little 1-2 of rotating shaft internal thread length times pitch; Thread taper angle θ is 4-10 °, and from turbine end, thread rotary orientation is identical with turbine shaft rotation direction; Between the back of the body dish of turbine wheel and circular cone external screw thread, have 180 ° of transition arcs, gapped between turbine wheel A end face and rotating shaft B end face, gap length is 1-3 times of thread pitch, as shown in Figure 1.For example, the diameter that is Φ 95mm, rotating shaft and bearing contact site for turbine wheel diameter is Φ 14mm, sees that from turbine end rotation direction is left-handed turbine shaft, the conical inner screw thread dimensional parameters of rotating shaft is ZM18 × 1-H7H7-LH, internal thread length is 18mm, taper theta is 8 °, the circular cone external screw thread dimensional parameters of turbine wheel is ZM18 × 1-p6p6-LH, external thread length is 15mm, 180 ° of knuckles between turbine wheel back of the body dish and external screw thread are R1.5, and the gap between turbine wheel A end face and rotating shaft B end face is 2mm.
B, determine the tapered tread assembly technology parameter of turbine shaft.According to the structural parameters of the thermal coefficient of expansion of turbine wheel and rotating shaft material and turbine shaft, operating temperature and maximum working torque, determine turbine wheel and the rotating shaft screw-down torque in Screw assembly process and the heating-up temperature at rotating shaft conical inner screw thread position; For example, the diameter that is Φ 95mm, rotating shaft and bearing contact site for turbine wheel diameter is that Φ 14mm, turbine wheel surface Working Temperature are that 750 DEG C, maximum working torque are 60Nm, turbine wheel material is that titanium-aluminium alloy, rotating shaft material are the rotating shaft of supercharger turbine of 42CrMo alloy, turbine wheel and rotating shaft are 550 DEG C in the heating-up temperature at Screw assembly process shaft conical inner screw thread position, and screw-down torque is 150Nm.
The processing of c, turbine wheel circular cone external screw thread, 180 ° of transition arcs and A end face, according to turbine wheel tapered tread syndeton parameter definite in step a, the circular cone external screw thread of processing turbine wheel, 180 ° of transition arcs and A end face;
The processing of d, rotating shaft conical inner screw thread and B end face, according to rotating shaft tapered tread syndeton parameter definite in step a, processing rotating shaft conical inner screw thread and B end face;
The Screw assembly of e, turbine wheel and rotating shaft, takes to heat the measure at rotating shaft conical inner screw thread position, according to screw-down torque definite in step b, is screwed turbine wheel and rotating shaft are assembled together by screw thread.
F, according to the structural parameters of turbine shaft, the turbine shaft that completes tapered tread assembling is carried out to the processing at other positions.
Be Φ 95mm for turbine wheel diameter, the diameter of rotating shaft and bearing contact site is Φ 14mm, see that from turbine end rotation direction is left-handed, turbine wheel surface Working Temperature is 750 DEG C, maximum working torque is 60Nm, turbine wheel material is titanium-aluminium alloy, rotating shaft material is the rotating shaft of supercharger turbine of 42CrMo alloy, preferably the tapered tread syndeton parameter of turbine shaft is: the conical inner screw thread dimensional parameters of rotating shaft is ZM18 × 1-H7H7-LH, internal thread length is 18mm, thread taper angle θ is 8 °, the circular cone external screw thread dimensional parameters of turbine wheel is ZM18 × 1-p6p6-LH, external thread length is 15mm, 180 ° of knuckles between turbine wheel back of the body dish and external screw thread are R1.5, gap between turbine wheel A end face and rotating shaft B end face is 2mm.Turbine wheel and rotating shaft preferred assembly technology parameter in Screw assembly process is: the heating-up temperature at rotating shaft conical inner screw thread position is 400 DEG C-600 DEG C, and screw-down torque is 120Nm-200Nm.
Claims (5)
1. a tapered tread method of attachment for booster turbine impeller and rotating shaft, comprises the following steps:
A, determine the tapered tread syndeton parameter of turbine shaft: according to the structural parameters of turbine shaft, determine the tapered tread syndeton parameter of turbine wheel and rotating shaft, rotating shaft adopts conical inner screw thread, pitch is 0.05-0.08 times of screw thread nominal diameter, and reach is 0.6-1.2 times of screw thread nominal diameter; Turbine wheel adopts circular cone external screw thread, and external thread length is than the little 1-2 of rotating shaft internal thread length times pitch; Thread taper angle θ is 4-10 °; From turbine end, thread rotary orientation is identical with turbine shaft rotation direction; Between the back of the body dish of turbine wheel and circular cone external screw thread, have 180 ° of transition arcs, gapped between turbine wheel A end face and rotating shaft B end face, gap length is 1-3 times of thread pitch;
B, determine the tapered tread assembly technology parameter of turbine shaft: according to the structural parameters of the thermal coefficient of expansion of turbine wheel and rotating shaft material and turbine shaft, operating temperature and maximum working torque, determine turbine wheel and the rotating shaft screw-down torque in Screw assembly process and the heating-up temperature at rotating shaft conical inner screw thread position;
The processing of c, turbine wheel circular cone external screw thread and 180 ° of transition arcs and A end face: according to turbine wheel tapered tread syndeton parameter definite in step a, the circular cone external screw thread of processing turbine wheel, 180 ° of transition arcs and A end face;
The processing of d, rotating shaft conical inner screw thread and B end face: according to rotating shaft tapered tread syndeton parameter definite in step a, conical inner screw thread and the B end face of processing rotating shaft;
The Screw assembly of e, turbine wheel and rotating shaft: take to heat the measure at rotating shaft conical inner screw thread position, according to screw-down torque definite in step b, screw being assembled together turbine wheel and rotating shaft by screw thread;
F, according to the structural parameters of turbine shaft, the turbine shaft that completes tapered tread assembling is carried out to the processing at other positions.
2. the tapered tread method of attachment of booster turbine impeller according to claim 1 and rotating shaft, is characterized in that: in step e, the heating-up temperature at rotating shaft conical inner screw thread position is 400 DEG C-600 DEG C, and screw-down torque is 120Nm-200Nm.
3. the tapered tread syndeton of a booster turbine impeller and rotating shaft, comprise booster turbine impeller (2) and rotating shaft (1), it is characterized in that: described rotating shaft (1) adopts conical inner screw thread, described turbine wheel and rotating shaft threaded engagement part adopt circular cone external screw thread, the rotation direction when rotation direction of seeing described tapered tread from turbine end is worked with turbine shaft is identical, the taper angle θ of tapered tread is 4-10 °, the back of the body dish of described turbine wheel and screw thread transition portion have 180 ° of transition arcs, gapped between turbine wheel A end face and rotating shaft B end face, gap length is 1-3 times of thread pitch.
4. the tapered tread syndeton of booster turbine impeller according to claim 3 and rotating shaft, it is characterized in that: the reach of the upper conical inner screw thread of described rotating shaft (1) is 0.6-1.2 times of screw thread nominal diameter, and pitch is 0.05-0.08 times of screw thread nominal diameter.
5. the tapered tread syndeton of booster turbine impeller according to claim 4 and rotating shaft, is characterized in that: the little 1-2 of the reach times pitch of the upper conical inner screw thread of the externally threaded Length Ratio rotating shaft of circular cone (1) that described turbine wheel (2) and rotating shaft threaded engagement part adopt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055009.2A CN103846613B (en) | 2014-02-12 | 2014-02-12 | The tapered tread method of attachment of booster turbine impeller and rotating shaft and attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410055009.2A CN103846613B (en) | 2014-02-12 | 2014-02-12 | The tapered tread method of attachment of booster turbine impeller and rotating shaft and attachment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103846613A true CN103846613A (en) | 2014-06-11 |
| CN103846613B CN103846613B (en) | 2016-06-15 |
Family
ID=50854991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410055009.2A Active CN103846613B (en) | 2014-02-12 | 2014-02-12 | The tapered tread method of attachment of booster turbine impeller and rotating shaft and attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103846613B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765121A (en) * | 2019-01-07 | 2019-05-17 | 崔云兰 | A kind of the anti-bending test mechanism and its method of automobile pipe parts |
| CN109765122A (en) * | 2019-01-07 | 2019-05-17 | 崔云兰 | A kind of auto parts and components bending resistance cubing and its application method |
| CN110131033A (en) * | 2019-04-02 | 2019-08-16 | 中国北方发动机研究所(天津) | A kind of turbine interference connection stress smoothly transits structure |
| US11525394B2 (en) * | 2018-08-07 | 2022-12-13 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Turbine shaft, turbocharger, and manufacturing method of turbocharger |
| CN115822727A (en) * | 2022-10-24 | 2023-03-21 | 北京动力机械研究所 | Auxiliary enhancement type long-life ceramic turbine rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663343B1 (en) * | 2002-06-27 | 2003-12-16 | Sea Solar Power Inc | Impeller mounting system and method |
| EP1489263A1 (en) * | 2003-06-19 | 2004-12-22 | ABB Turbo Systems AG | Shaft-hub connection |
| US20120189452A1 (en) * | 2010-07-20 | 2012-07-26 | Itt Manufacturing Enterprises, Inc. | Impeller Attachment Method |
| CN103317307A (en) * | 2013-06-10 | 2013-09-25 | 中国北方发动机研究所(天津) | Bi-arc self-locking interference threaded connection method and structure for titanium aluminum turbine and spindle |
| CN103438058A (en) * | 2013-08-28 | 2013-12-11 | 中国北方发动机研究所(天津) | Thread interference locking connection method and connection structure for rotating shaft of titanium aluminum supercharger turbine |
-
2014
- 2014-02-12 CN CN201410055009.2A patent/CN103846613B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6663343B1 (en) * | 2002-06-27 | 2003-12-16 | Sea Solar Power Inc | Impeller mounting system and method |
| EP1489263A1 (en) * | 2003-06-19 | 2004-12-22 | ABB Turbo Systems AG | Shaft-hub connection |
| US20040258467A1 (en) * | 2003-06-19 | 2004-12-23 | Abb Turbo Systems Ag | Shaft/hub connection |
| US20120189452A1 (en) * | 2010-07-20 | 2012-07-26 | Itt Manufacturing Enterprises, Inc. | Impeller Attachment Method |
| CN103317307A (en) * | 2013-06-10 | 2013-09-25 | 中国北方发动机研究所(天津) | Bi-arc self-locking interference threaded connection method and structure for titanium aluminum turbine and spindle |
| CN103438058A (en) * | 2013-08-28 | 2013-12-11 | 中国北方发动机研究所(天津) | Thread interference locking connection method and connection structure for rotating shaft of titanium aluminum supercharger turbine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11525394B2 (en) * | 2018-08-07 | 2022-12-13 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Turbine shaft, turbocharger, and manufacturing method of turbocharger |
| CN109765121A (en) * | 2019-01-07 | 2019-05-17 | 崔云兰 | A kind of the anti-bending test mechanism and its method of automobile pipe parts |
| CN109765122A (en) * | 2019-01-07 | 2019-05-17 | 崔云兰 | A kind of auto parts and components bending resistance cubing and its application method |
| CN109765121B (en) * | 2019-01-07 | 2021-11-05 | 合肥龙精灵信息技术有限公司 | Bending resistance testing mechanism and method for automobile pipe parts |
| CN109765122B (en) * | 2019-01-07 | 2021-12-14 | 南昌申宝汽车部件有限公司 | Automobile part bending resistance testing fixture and use method thereof |
| CN110131033A (en) * | 2019-04-02 | 2019-08-16 | 中国北方发动机研究所(天津) | A kind of turbine interference connection stress smoothly transits structure |
| CN115822727A (en) * | 2022-10-24 | 2023-03-21 | 北京动力机械研究所 | Auxiliary enhancement type long-life ceramic turbine rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103846613B (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244194B (en) | Threaded interference fitting method and threaded interference fitting structure for turbine impeller and rotary shaft | |
| CN103846613B (en) | The tapered tread method of attachment of booster turbine impeller and rotating shaft and attachment structure | |
| CN103438058B (en) | The thread interference locking linkage structure of titanium aluminium rotating shaft of supercharger turbine | |
| CN103317307B (en) | The bicircular arcs self-locking interference thread method of attachment of titanium aluminium turbine and rotating shaft and structure | |
| CN101596665B (en) | Technology method for connecting three-body structure of titanium aluminum alloy turbine rotation shaft | |
| US8784065B2 (en) | Friction welding of titanium aluminide turbine to titanium alloy shaft | |
| CN101844271A (en) | Friction welding method of titanium-aluminum alloy turbine and 42CrMo quenched and tempered steel shaft | |
| CN103321685A (en) | Through-hole connection method and connection structure of titanium aluminum turbine impeller and rotating shaft | |
| EP3309264A1 (en) | Hybrid component and method of making | |
| CN103862234B (en) | A kind of method promoting booster turbine heart portion strength character and structure | |
| CN209959668U (en) | Bolt for connecting gas compressor rotor and turbine shaft of gas turbine | |
| CN104074551A (en) | Turbine wheel split type structure | |
| CN110344892B (en) | Radial flow turbine power generation system integrated rotor and manufacturing process thereof | |
| CN104405449A (en) | Turbine-rotating shaft taper thread interference connecting structure and connecting method | |
| US20080000558A1 (en) | Friction welding | |
| CN207240096U (en) | Bearing disassembling device | |
| CN106002284B (en) | A kind of vehicle supercharger turbine pivot structure and its method for processing and assembling | |
| CN106925944B (en) | Self-cooling ultrasonic composite extrusion processing device for precision processing | |
| US11333200B2 (en) | Method for manufacturing a pitch bearing or a yaw bearing of a wind turbine via additive manufacturing | |
| CN113649720A (en) | Composite connection method of titanium-aluminum alloy turbine and steel shaft | |
| CN203441545U (en) | Bolt shaft tightening impeller and connection structure of impeller and turbine shaft | |
| CN105666144A (en) | Composite supercharger turbine rotating shaft and machining assembly method thereof | |
| CN107781389A (en) | A kind of electric dipper slewing gear fixing structure | |
| CN210343433U (en) | Turbine shaft assembly and turbine shaft for hollow friction welding | |
| CN2198060Y (en) | Disk shear edge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |