CN201568433U - Lock nut of compressor impeller of turbocharger - Google Patents
Lock nut of compressor impeller of turbocharger Download PDFInfo
- Publication number
- CN201568433U CN201568433U CN2009202597079U CN200920259707U CN201568433U CN 201568433 U CN201568433 U CN 201568433U CN 2009202597079 U CN2009202597079 U CN 2009202597079U CN 200920259707 U CN200920259707 U CN 200920259707U CN 201568433 U CN201568433 U CN 201568433U
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- CN
- China
- Prior art keywords
- locking nut
- nut body
- turbo
- lock nut
- blower impeller
- 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.)
- Expired - Fee Related
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Abstract
Disclosed is a lock nut of a compressor impeller of a turbocharger, which comprises a lock nut body (1) and a nylon ring (2). The lock nut body (1) is provided with internal threads (11). The screwing direction of the internal threads (11) is opposite to the rotation direction when the compressor impeller of the turbocharger runs normally. The internal threads (11) are internal Spiralock threads. One section of the lock nut body (1) close to a compressed end face (12) is provided with a raised step (13). The nylon ring (2) is embedded in the lock nut body (1). The semi-diameter R1 of the inner circle of the nylon ring (2) is less than the semi-diameter R2 of the internal threads (11) of the lock nut body (1). The utility model has the treble locking function of the derotation self-locking, the Spiralock threads and the nylon threads, which has the advantages of good locking effect, shock resistance, unlocking resistance and high temperature resistance.
Description
Technical field
The utility model relates to a kind of turbosupercharger part, particularly a kind of turbo-charger blower impeller locking nut.
Background technique
Because turbosupercharger is not only worked under rugged environment, again because its kernel component turbine and impeller all are high speed rotating mechanism (its rotating speed is the highest to surpass 200,000 rev/mins), general turbosupercharger all adopts left and right sides cantilever structure now in addition, so gas compressor end impeller locking problem is most important.At present, the compressor impeller locking nut is fixed (direction of rotation when being the screw thread tightening direction of locking nut internal thread and turbo-charger blower impeller proper functioning) for the hexagonal locking nut of band auto-lock function, and is assisted with the gluing mode and to tighten.But because in use frequent acceleration and deceleration and the impeller effect of inertia of motor, this locking nut effect is bad, and the phenomenon that often has the nut loosening impeller to fly out at a high speed is when serious even break the gas compressor volute and cause accidents such as motor catastrophe failure.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of turbo-charger blower impeller locking nut is provided, and it has the derotation self-locking, executing must firm screw thread and the triple locking function of nylon screw thread, can be shockproof, locking, high temperature resistant.
The technical solution of the utility model is: a kind of turbo-charger blower impeller locking nut, it comprises locking nut body and nylon ring, the locking nut body is provided with internal thread, direction of rotation when the screw thread tightening direction of internal thread and turbo-charger blower impeller proper functioning, internal thread are Nei Shibi jail screw thread.
The further technological scheme of the utility model is: described locking nut body is near the one section step that is provided with projection that compresses end face.
The utility model further technological scheme is: described nylon ring is embedded in the locking nut body, and the inner ring radius of nylon ring is less than the radius of the internal thread of locking nut body.
The further again technological scheme of the utility model is: described locking nut body periphery intermediate section is six sides, four directions or plum blossom shape.
The utility model also further technological scheme be: described nylon ring is that the material with good plasticity, toughness, certain corrosion-resistant and high temperature resistant character is made, and the locking nut body is that iron or alloy material are made.
The utility model compared with prior art has following characteristics:
1, the utility model has merged derotation self-locking nut, executing must firm locking nut and the advantage of nylon flange locking nut, has triple locking effects, have advantages such as certain corrosion-and high-temp-resistant and high strength again, simplified the pressurized machine assembly process, and to overcoming the sliding tooth problem of soft material (as aluminum alloy) remarkable result is arranged, that this in addition novel locknut has is shockproof, locking, high temperature resistant, need not advantage such as other locking auxiliary elements;
2, the utility model is wear-resistant and anti-shear ability is strong, because intrinsic the executing of locking nut must firm Bottom of Thread have 30 ° of inclined-planes, it can make the locking nut coupling mechanism force be evenly distributed on the screw thread of all each teeth and compress on the end face than large size, the impacting force distributed uniform has solved the problem of thread abrasion and shear deformation preferably;
3, simplify traditional locking nut coating process, saved cost.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of turbosupercharger.
Embodiment
Embodiment
Shown in Fig. 1-2: a kind of turbo-charger blower impeller locking nut, it comprises locking nut body 1 and nylon ring 2, locking nut body 1 is provided with internal thread 11, direction of rotation when the screw thread tightening direction of internal thread 11 and turbo-charger blower impeller proper functioning, internal thread 11 is a Nei Shibi jail screw thread, the tooth bottom that is the female thread of internal thread 11 is provided with one 30 ° wedge shape inclined-plane, locking nut body 1 is near the one section step 13 that is provided with projection that compresses end face 12, and step 13 can increase the area that locking nut body 1 compresses end face 12; Nylon ring 2 is embedded in the locking nut body 1, and the inner ring radius R 1 of nylon ring 2 is slightly smaller than the radius R 2 of the internal thread 11 of locking nut body 1; Locking nut body 1 periphery intermediate section can be shapes such as six sides, four directions, plum blossom; Nylon ring 2 is made for the material with good plasticity, toughness, certain corrosion-resistant and high temperature properties, and locking nut body 1 is made for iron or alloy material.
The utility model is not limited to above-mentioned concrete structure, so long as internal thread 11 just drops within the protection domain of the present utility model for the turbo-charger blower impeller locking nut that Nei Shibi jail screw thread and locking nut body 1 are provided with nylon ring 2.
Claims (7)
1. turbo-charger blower impeller locking nut, it comprises locking nut body (1) and nylon ring (2), locking nut body (1) is provided with internal thread (11), direction of rotation when the screw thread tightening direction of internal thread (11) and turbo-charger blower impeller proper functioning is characterized in that: internal thread (11) is Nei Shibi jail screw thread.
2. turbo-charger blower impeller locking nut according to claim 1 is characterized in that: described locking nut body (1) is near the one section step (13) that is provided with projection that compresses end face (12).
3. turbo-charger blower impeller locking nut according to claim 1 and 2, it is characterized in that: described nylon ring (2) is embedded in the locking nut body (1), and the inner ring radius R 1 of nylon ring (2) is less than the radius R 2 of the internal thread (11) of locking nut body (1).
4. turbo-charger blower impeller locking nut according to claim 1 and 2 is characterized in that: described locking nut body (1) periphery intermediate section is the hexagonal shaped shape.
5. turbo-charger blower impeller locking nut according to claim 3 is characterized in that: described locking nut body (1) periphery intermediate section is the hexagonal shaped shape.
6. turbo-charger blower impeller locking nut according to claim 1 and 2, it is characterized in that: described nylon ring (2) is made for the material with good plasticity, toughness, certain corrosion-resistant and high temperature resistant character, and locking nut body (1) is made for iron or alloy material.
7. turbo-charger blower impeller locking nut according to claim 3, it is characterized in that: described nylon ring (2) is made for the material with good plasticity, toughness, certain corrosion-resistant and high temperature resistant character, and locking nut body (1) is made for iron or alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202597079U CN201568433U (en) | 2009-12-10 | 2009-12-10 | Lock nut of compressor impeller of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202597079U CN201568433U (en) | 2009-12-10 | 2009-12-10 | Lock nut of compressor impeller of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568433U true CN201568433U (en) | 2010-09-01 |
Family
ID=42660718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202597079U Expired - Fee Related CN201568433U (en) | 2009-12-10 | 2009-12-10 | Lock nut of compressor impeller of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568433U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537007A (en) * | 2010-12-08 | 2012-07-04 | 美铝公司 | Locking nut assambly |
| CN103264770A (en) * | 2013-04-24 | 2013-08-28 | 北京工业大学 | Self-locking structure for mounting motor of electric flying machine |
| CN110073016A (en) * | 2017-11-20 | 2019-07-30 | 株式会社中村制作所 | Aluminium alloy turbine wheel shaft nut |
-
2009
- 2009-12-10 CN CN2009202597079U patent/CN201568433U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537007A (en) * | 2010-12-08 | 2012-07-04 | 美铝公司 | Locking nut assambly |
| CN102537007B (en) * | 2010-12-08 | 2014-05-28 | 美铝公司 | Locking nut assambly |
| CN103264770A (en) * | 2013-04-24 | 2013-08-28 | 北京工业大学 | Self-locking structure for mounting motor of electric flying machine |
| CN103264770B (en) * | 2013-04-24 | 2016-01-20 | 北京工业大学 | A kind of self-locking structure of motor installation of Electric aircraft |
| CN110073016A (en) * | 2017-11-20 | 2019-07-30 | 株式会社中村制作所 | Aluminium alloy turbine wheel shaft nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20121210 |