CN109356712A - A kind of turbine rotor locking nut structure - Google Patents
A kind of turbine rotor locking nut structure Download PDFInfo
- Publication number
- CN109356712A CN109356712A CN201811519581.4A CN201811519581A CN109356712A CN 109356712 A CN109356712 A CN 109356712A CN 201811519581 A CN201811519581 A CN 201811519581A CN 109356712 A CN109356712 A CN 109356712A
- Authority
- CN
- China
- Prior art keywords
- pressing table
- locking nut
- turbine rotor
- screw thread
- seal face
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
-
- 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
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention provides a kind of turbine rotor locking nut structures, including nut body, the nut body is equipped with screw thread, the nut body includes the first pressing table, the second pressing table and pedestal of integrated neighbouring setting, first pressing table and second pressing table are multijaw structure, the lower plane of first pressing table forms the first seal face, and the lower plane of second pressing table forms the second seal face.First pressing table of the present invention and second pressing table are multijaw structure, after locking nut is installed on rotor, the seal face of each pawl and the screw thread localized contact of armature spindle make the screw thread local deformation of armature spindle, the stiction between screw thread is increased, locking is played the role of.
Description
Technical field
The invention belongs to technical field of fastening, more particularly, to a kind of turbine rotor locking nut structure.
Background technique
The rotor of turbocharger is mainly made of compressor and turbine.General structure is compressor impeller centering,
Compressor impeller is fixed in turbine shaft by locking nut.However sometimes locking nut can fail, and locking nut occurs
The failure for rotating or loosening, causes compressor impeller to fall off from armature spindle, turbocharger impairment.
Summary of the invention
In view of this, the present invention is directed to propose a kind of turbine rotor locking nut structure, is compressed by the first pressing table, second
Platform forms locking structure, solves the technology hidden danger that booster locking nut loosens.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of turbine rotor locking nut structure, including nut body, the nut body are equipped with screw thread, the nut sheet
Body includes the first pressing table, the second pressing table and pedestal of integrated neighbouring setting, first pressing table and described
The screw thread is divided into discontinuous several parts by two pressing tables；First pressing table and second pressing table are more
Pawl structure, the lower plane of first pressing table form the first seal face, and the lower plane of second pressing table forms the second pressure
Tight face.
Further, first pressing table and second pressing table have circumferentially equally distributed multiple
Pawl, the space between each adjacent two pawl are cut out by circular peripheral-mill, expose the screw thread of a part.
Further, space length is 1.5mm between first seal face and second pressing table upper surface；It is described
Space length is 1.5mm between second seal face and the upper surface of the pedestal.
Further, several small toothings are uniformly distributed in the lower peripheral of the pedestal.
Further, the lateral surface of the pedestal is equipped with wrench faces.
Compared with the existing technology, present invention has the advantage that
(1) the first pressing table of the present invention and second pressing table are multijaw structure, are turned when locking nut is installed to
After on son, the seal face of each pawl and the screw thread localized contact of armature spindle make the screw thread local deformation of armature spindle, increase spiral shell
Stiction between line, plays the role of locking.
(2) the first pressing table of the present invention and second pressing table and the pedestal form three on distribution of force
The screw thread of relatively independent part, base portion preferably can apply axial compressive force to compressor impeller, and described first compresses
The screw thread of platform and second pressing table can preferably play the role of locking.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is turbine rotor lock nut structure diagram described in the embodiment of the present invention；
Fig. 2 is the top view of turbine rotor locking nut structure described in the embodiment of the present invention；
Fig. 3 is the A direction view of Fig. 1.
Description of symbols:
The first pressing table of 1-, the second pressing table of 2-, 3- wrench faces, 4- pedestal, the second seal face of 5-, the first seal face of 6-,
7- screw thread.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of turbine rotor locking nut structure, as shown in Figures 1 to 3, including nut body, the nut body are equipped with spiral shell
Line 7, the nut body include the first pressing table 1, the second pressing table 2 and pedestal 4 of integrated neighbouring setting, and described
The screw thread 7 is divided into discontinuous several parts by one pressing table 1 and second pressing table 2.First pressing table, 1 He
Second pressing table 2 is multijaw structure, and the lower plane of first pressing table 1 forms the first seal face 6, second pressure
The lower plane of tight platform 2 forms the second seal face 5.
First pressing table 1 and second pressing table 2 have circumferentially equally distributed 6 pawls, every phase
Space between adjacent two pawls is cut out by the circular peripheral-mill that diameter is 12mm, exposes the screw thread 7 of a part.
Be made of in 4 periphery of the pedestal the small tooth that equally distributed 48 angles are 135 °, increase bottom surface with contact
The frictional force in face.
The lateral surface of the pedestal 4 be equipped with wrench faces 3, the wrench faces 3 by 12 equally distributed 120 ° of angles tooth
It constitutes, convenient for being tightened using sleeve torque spanner.
Space length is 1.5mm between first seal face 6 and 2 upper surface of the second pressing table；Second pressure
Space length is 1.5mm between tight face 5 and the upper surface of the pedestal 4.
Turbine rotor locking nut structure of the invention, it is hidden preferably to solve the technology that booster locking nut loosens
Suffer from.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of turbine rotor locking nut structure, including nut body, the nut body is equipped with screw thread (7), and feature exists
In: the nut body includes the first pressing table (1), the second pressing table (2) and pedestal (2) of integrated neighbouring setting,
The screw thread (7) is divided into discontinuous several parts by first pressing table (1) and second pressing table (2)；It is described
First pressing table (1) and second pressing table (2) are multijaw structure, and the lower plane of first pressing table (1) forms the
The lower plane of one seal face (6), second pressing table (2) forms the second seal face (5).
2. a kind of turbine rotor locking nut structure according to claim 1, it is characterised in that: first pressing table
(1) and second pressing table (2) has circumferentially equally distributed multiple pawls, the space between each adjacent two pawl
It is cut out by circular peripheral-mill, the screw thread (7) of exposed portion.
3. a kind of turbine rotor locking nut structure according to claim 1, it is characterised in that: in the pedestal (4)
Lower peripheral is uniformly distributed several small toothings.
4. a kind of turbine rotor locking nut structure according to claim 1, it is characterised in that: outside the pedestal (4)
Side is equipped with wrench faces (3).
5. a kind of turbine rotor locking nut structure according to claim 1, it is characterised in that: first seal face
(6) space length is 1.5mm between second pressing table (2) upper surface；Second seal face (5) and the pedestal
(4) space length is 1.5mm between upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519581.4A CN109356712B (en) | 2018-12-12 | 2018-12-12 | Turbine rotor lock nut structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811519581.4A CN109356712B (en) | 2018-12-12 | 2018-12-12 | Turbine rotor lock nut structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356712A true CN109356712A (en) | 2019-02-19 |
| CN109356712B CN109356712B (en) | 2021-01-15 |
Family
ID=65328659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811519581.4A Active CN109356712B (en) | 2018-12-12 | 2018-12-12 | Turbine rotor lock nut structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356712B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540529A (en) * | 1991-10-02 | 1996-07-30 | Ina Walzlager Schaeffler Kg | Locking member |
| CN1441879A (en) * | 2000-07-14 | 2003-09-10 | 奥根公司 | Tuning screw assembly |
| JP2004211753A (en) * | 2002-12-27 | 2004-07-29 | Japan Power Fastening Co Ltd | Nut and combination of the nut and bolt |
| CN202284601U (en) * | 2011-10-26 | 2012-06-27 | 郑柏林 | Anti-loosing and anti-disassembling nut |
| CN102562766A (en) * | 2010-12-17 | 2012-07-11 | 海洋王照明科技股份有限公司 | Self-locking nut |
| CN103321685A (en) * | 2013-07-12 | 2013-09-25 | 中国北方发动机研究所(天津) | Through-hole connection method and connection structure of titanium aluminum turbine impeller and rotating shaft |
| CN104454908A (en) * | 2014-11-04 | 2015-03-25 | 贵州航天精工制造有限公司 | Axial compression thread self-locking nut and closing-in method thereof |
| CN204239431U (en) * | 2014-10-11 | 2015-04-01 | 俞宜洪 | A kind of double anti-theft nut |
| CN205533676U (en) * | 2016-01-20 | 2016-08-31 | 苏州国嘉记忆合金有限公司 | Locknut with memory alloy ring |
| CN106122228A (en) * | 2016-06-30 | 2016-11-16 | 上海振华重工集团(南通)传动机械有限公司 | A kind of round nut and locking fixture thereof |
| CN205937417U (en) * | 2016-08-16 | 2017-02-08 | 贵州航锐航空精密零部件制造有限公司 | Self -locking nut of elasticity rand formula |
| CN206468669U (en) * | 2016-12-27 | 2017-09-05 | 朗福紧固科技（西安）有限公司 | One kind fluting solid lock nut |
| CN207297108U (en) * | 2017-10-10 | 2018-05-01 | 大连恒通机车配件有限公司 | A kind of rotor structure of exhaust-driven turbo-charger exhaust-gas turbo charger |
| CN207485821U (en) * | 2017-11-16 | 2018-06-12 | 陈惠君 | Anti-loosening bolt and bolt structure on a kind of automobile |
| US20180306232A1 (en) * | 2017-04-25 | 2018-10-25 | Mitee-Bite Products LLC | Precision holding and locating pin |
-
2018
- 2018-12-12 CN CN201811519581.4A patent/CN109356712B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540529A (en) * | 1991-10-02 | 1996-07-30 | Ina Walzlager Schaeffler Kg | Locking member |
| CN1441879A (en) * | 2000-07-14 | 2003-09-10 | 奥根公司 | Tuning screw assembly |
| JP2004211753A (en) * | 2002-12-27 | 2004-07-29 | Japan Power Fastening Co Ltd | Nut and combination of the nut and bolt |
| CN102562766A (en) * | 2010-12-17 | 2012-07-11 | 海洋王照明科技股份有限公司 | Self-locking nut |
| CN202284601U (en) * | 2011-10-26 | 2012-06-27 | 郑柏林 | Anti-loosing and anti-disassembling nut |
| CN103321685A (en) * | 2013-07-12 | 2013-09-25 | 中国北方发动机研究所(天津) | Through-hole connection method and connection structure of titanium aluminum turbine impeller and rotating shaft |
| CN204239431U (en) * | 2014-10-11 | 2015-04-01 | 俞宜洪 | A kind of double anti-theft nut |
| CN104454908A (en) * | 2014-11-04 | 2015-03-25 | 贵州航天精工制造有限公司 | Axial compression thread self-locking nut and closing-in method thereof |
| CN205533676U (en) * | 2016-01-20 | 2016-08-31 | 苏州国嘉记忆合金有限公司 | Locknut with memory alloy ring |
| CN106122228A (en) * | 2016-06-30 | 2016-11-16 | 上海振华重工集团(南通)传动机械有限公司 | A kind of round nut and locking fixture thereof |
| CN205937417U (en) * | 2016-08-16 | 2017-02-08 | 贵州航锐航空精密零部件制造有限公司 | Self -locking nut of elasticity rand formula |
| CN206468669U (en) * | 2016-12-27 | 2017-09-05 | 朗福紧固科技（西安）有限公司 | One kind fluting solid lock nut |
| US20180306232A1 (en) * | 2017-04-25 | 2018-10-25 | Mitee-Bite Products LLC | Precision holding and locating pin |
| CN207297108U (en) * | 2017-10-10 | 2018-05-01 | 大连恒通机车配件有限公司 | A kind of rotor structure of exhaust-driven turbo-charger exhaust-gas turbo charger |
| CN207485821U (en) * | 2017-11-16 | 2018-06-12 | 陈惠君 | Anti-loosening bolt and bolt structure on a kind of automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109356712B (en) | 2021-01-15 |
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