CN109356712B - Turbine rotor lock nut structure - Google Patents
Turbine rotor lock nut structure Download PDFInfo
- Publication number
- CN109356712B CN109356712B CN201811519581.4A CN201811519581A CN109356712B CN 109356712 B CN109356712 B CN 109356712B CN 201811519581 A CN201811519581 A CN 201811519581A CN 109356712 B CN109356712 B CN 109356712B
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- CN
- China
- Prior art keywords
- pressing
- turbine rotor
- base
- platform
- pressing table
- 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.)
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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
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- 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
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- 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
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- 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 invention provides a locking nut structure of a turbine rotor, which comprises a nut body, wherein the nut body is provided with threads, the nut body comprises a first pressing table, a second pressing table and a base which are arranged adjacently up and down and are integrated, the first pressing table and the second pressing table are both of a multi-claw structure, the lower plane of the first pressing table forms a first pressing surface, and the lower plane of the second pressing table forms a second pressing surface. According to the invention, the first pressing platform and the second pressing platform are of a multi-claw structure, after the locking nut is arranged on the rotor, the pressing surface of each claw is locally contacted with the thread of the rotor shaft, so that the thread of the rotor shaft is locally deformed, the static friction force between the threads is increased, and the locking effect is achieved.
Description
Technical Field
The invention belongs to the technical field of fasteners, and particularly relates to a turbine rotor lock nut structure.
Background
The rotor of the turbocharger mainly comprises a compressor and a turbine. The general structure is that a central hole is drilled on a compressor impeller, and the compressor impeller is fixed on a turbine rotating shaft by a locking nut. However, sometimes the locking nut fails, and the locking nut rotates or loosens, so that the compressor impeller falls off from the rotor shaft, and the supercharger is damaged.
Disclosure of Invention
In view of this, the invention aims to provide a turbine rotor lock nut structure, a first pressing table and a second pressing table form a locking structure, and the technical problem that a supercharger lock nut is loosened is solved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a locking nut structure of a turbine rotor comprises a nut body, wherein the nut body is provided with threads, the nut body comprises a first pressing platform, a second pressing platform and a base which are integrated and vertically arranged adjacently, and the threads are divided into discontinuous parts by the first pressing platform and the second pressing platform; the first pressing table and the second pressing table are both of a multi-claw structure, a first pressing surface is formed on the lower plane of the first pressing table, and a second pressing surface is formed on the lower plane of the second pressing table.
Further, the first pressing table and the second pressing table are provided with a plurality of claws which are uniformly distributed along the circumferential direction, and the space between every two adjacent claws is cut by a disc milling cutter, so that a part of the thread is exposed.
Further, the space distance between the first pressing surface and the upper surface of the second pressing table is 1.5 mm; the spatial distance between the second pressing surface and the upper surface of the base is 1.5 mm.
Furthermore, a plurality of small tooth structures are uniformly distributed on the periphery of the bottom surface of the base.
Furthermore, the outer side surface of the base is provided with a wrench surface.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, the first pressing platform and the second pressing platform are of a multi-claw structure, after the locking nut is arranged on the rotor, the pressing surface of each claw is locally contacted with the thread of the rotor shaft, so that the thread of the rotor shaft is locally deformed, the static friction force between the threads is increased, and the locking effect is achieved.
(2) The first pressing table, the second pressing table and the base form three relatively independent parts in stress distribution, the threads of the base part can well apply axial pressure to the compressor impeller, and the threads of the first pressing table and the second pressing table can well play a role in locking.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a turbine rotor lock nut according to an embodiment of the present invention;
FIG. 2 is a top view of a turbine rotor lock nut configuration according to an embodiment of the present invention;
fig. 3 is a view taken along direction a of fig. 1.
Description of reference numerals:
1-a first pressing table, 2-a second pressing table, 3-a wrench surface, 4-a base, 5-a second pressing surface, 6-a first pressing surface and 7-a thread.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A locking nut structure of a turbine rotor is shown in figures 1 to 3 and comprises a nut body, wherein threads 7 are arranged on the nut body, the nut body comprises a first pressing platform 1, a second pressing platform 2 and a base 4 which are integrally and adjacently arranged up and down, and the threads 7 are divided into discontinuous parts by the first pressing platform 1 and the second pressing platform 2. The first pressing table 1 and the second pressing table 2 are both of a multi-claw structure, a first pressing surface 6 is formed on the lower plane of the first pressing table 1, and a second pressing surface 5 is formed on the lower plane of the second pressing table 2.
The first pressing table 1 and the second pressing table 2 each have 6 claws uniformly distributed in the circumferential direction, and the space between every two adjacent claws is cut by a disc cutter having a diameter of 12mm, exposing a part of the thread 7.
The periphery of the base 4 is formed by 48 small teeth which are uniformly distributed and have an included angle of 135 degrees, so that the friction force between the bottom surface and the contact surface is increased.
The lateral surface of base 4 is equipped with wrench face 3, wrench face 3 comprises 12 evenly distributed's 120 contained angles's tooth, is convenient for adopt socket torque wrench to screw up.
The space distance between the first pressing surface 6 and the upper surface of the second pressing table 2 is 1.5 mm; the spatial distance between the second pressing surface 5 and the upper surface of the base 4 is 1.5 mm.
The turbine rotor lock nut structure of the invention better solves the technical hidden trouble of loosening the lock nut of the supercharger.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a turbine rotor lock nut structure, includes the nut body, the nut body is equipped with screw thread (7), its characterized in that: the nut body comprises a first pressing platform (1), a second pressing platform (2) and a base (4) which are arranged up and down adjacently and are integrated, and annular grooves are formed between the first pressing platform (1) and the second pressing platform (2) and between the second pressing platform (2) and the base (4); the first pressing table (1) and the second pressing table (2) are both of a multi-claw structure, a first pressing surface (6) is formed on the lower plane of the first pressing table (1), and a second pressing surface (5) is formed on the lower plane of the second pressing table (2); the first pressing platform (1) and the second pressing platform (2) are provided with a plurality of claws uniformly distributed along the circumferential direction, and the space between every two adjacent claws is cut by a disc milling cutter to expose part of the thread (7) so as to divide the thread (7) into discontinuous parts.
2. The turbine rotor lock nut structure of claim 1, wherein: a plurality of small tooth structures are uniformly distributed on the periphery of the bottom surface of the base (4).
3. The turbine rotor lock nut structure of claim 1, wherein: and a wrench surface (3) is arranged on the outer side surface of the base (4).
4. The turbine rotor lock nut structure of claim 1, wherein: the space distance between the first pressing surface (6) and the upper surface of the second pressing table (2) is 1.5 mm; the space distance between the second pressing surface (5) and the upper surface of the base (4) is 1.5 mm.
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 CN109356712A (en) | 2019-02-19 |
| CN109356712B true 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) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE500229C2 (en) * | 1991-10-02 | 1994-05-09 | Boerje Jansson | Locking element |
| SE516862C2 (en) * | 2000-07-14 | 2002-03-12 | Allgon Ab | Reconciliation screw device and method and resonator |
| JP2004211753A (en) * | 2002-12-27 | 2004-07-29 | Japan Power Fastening Co Ltd | Nut and combination of the nut and bolt |
| CN102562766B (en) * | 2010-12-17 | 2014-07-09 | 海洋王照明科技股份有限公司 | base material assembling or disassembling based Self-locking nut |
| CN202284601U (en) * | 2011-10-26 | 2012-06-27 | 郑柏林 | Anti-loosing and anti-disassembling nut |
| CN103321685B (en) * | 2013-07-12 | 2015-02-04 | 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 |
| US10458459B2 (en) * | 2017-04-25 | 2019-10-29 | 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 |
-
2018
- 2018-12-12 CN CN201811519581.4A patent/CN109356712B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109356712A (en) | 2019-02-19 |
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