CN108005728B - Press-push combined turbine shaft - Google Patents
Press-push combined turbine shaft Download PDFInfo
- Publication number
- CN108005728B CN108005728B CN201711440009.4A CN201711440009A CN108005728B CN 108005728 B CN108005728 B CN 108005728B CN 201711440009 A CN201711440009 A CN 201711440009A CN 108005728 B CN108005728 B CN 108005728B
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- CN
- China
- Prior art keywords
- turbine
- clamping
- push
- outer ring
- turbine 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.)
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Classifications
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- 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
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- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
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- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The pushing and combining body turbine shaft comprises a turbine body, a pushing pipe and a clamping sleeve, wherein the turbine body is provided with a turbine shaft in the middle, a through hole is axially formed in the middle of the turbine body, the turbine body is formed by buckling an upper turbine and a lower turbine, a containing cavity is formed between the upper turbine and the lower turbine, the pushing pipe is arranged on the upper turbine, the outer wall of the lower end of the pushing pipe is provided with a clamping part for clamping a needle in a conical clamping sleeve manner, the upper end of the clamping part is provided with a horn-shaped opening, the side wall of the clamping part is provided with a radial slot, and the lower end of the pushing pipe is propped against the horn-shaped opening of the clamping part; the turbine shaft is provided with a roller path which is positioned at the upper end and the lower end of the turbine body; the turbine shaft is sleeved with a flange outer ring, a roller path is arranged on the inner wall of the flange outer ring, a ball retainer and balls are arranged in the retainer. The upper flange outer ring and the lower flange outer ring of the invention mutually prop up the turbine shafts, have high concentricity precision and extremely small radial runout of the bearings, greatly reduce noise and vibration, and can not cause the lubrication substances to be carried away very because of the overflow of internal air flow.
Description
Technical Field
The invention relates to a push-fit turbine shaft.
Background
The pneumatic turbine mainly comprises a shell and an internal driving assembly, and is currently and commonly manufactured by adopting a split design of arranging special miniature bearings at two ends of the turbine and then assembling the split design into the shell. The miniature bearing (the manufacture of the inner ring and the outer ring of the main bearing) with complicated manufacture and high price is adopted; the straight-face turbine of bearing is taken away lubricating substance by the air current that the turbine overflowed very easily, and product precision requirement is high, and upper and lower bearing concentric precision requirement is high, when the cover is covered on the shell, if the error is too big can lead to the turbine to produce the footpath and jump in the operation, forms noise and shake, influences result of use. The reason that influences pneumatic turbine noise and shake still exists in the unreasonable setting of pressing device, and reliable pressing device structure on the market at present is too complicated, and the accessory is various to assemble inconvenient, and the focus is uneven, thereby the accessory is located and can produce and remove and produce abnormal sound, shake in the turbine axle of high-speed operation.
Disclosure of Invention
In order to overcome the defects of split design of the existing turbine shaft, high price of the miniature bearing and high requirements on precision and concentricity, the invention provides a push-fit turbine shaft.
The technical scheme for solving the technical problems is as follows: the pushing and combining body turbine shaft comprises a turbine body, wherein the middle part of the turbine body is provided with a turbine shaft, the middle part of the turbine body is axially provided with a through hole, the turbine body is formed by buckling an upper turbine and a lower turbine, a containing cavity is arranged between the upper turbine and the lower turbine, the pushing and combining body turbine shaft further comprises a pushing pipe and a clamping sleeve, the pushing pipe is arranged on the upper turbine, the outer wall of the lower end of the pushing pipe is conical, the upper end of the clamping sleeve is provided with a clamping part for clamping a needle, the upper end of the clamping part is provided with a horn-shaped opening, the side wall of the clamping part is provided with a radial slot, and the lower end of the pushing pipe is propped against the horn-shaped opening of the clamping part;
the turbine shaft is provided with a roller path, and the roller path is positioned at the upper end and the lower end of the turbine body;
the turbine shaft is sleeved with a flange outer ring, a roller path, a ball retainer and balls are arranged on the inner wall of the flange outer ring, and the balls are arranged in the retainer.
Further, the upper end of the clamping sleeve is closed to form a clamping part for clamping the needle.
Preferably, a slot is formed in the side wall of the lower turbine through hole, the lower end of the clamping sleeve is arranged on the side wall of the lower turbine through hole, and the clamping sleeve is tightly matched in the slot.
Preferably, the pressing component is prevented from shaking during operation, the lower end of the push tube protrudes outwards, and the top surface of the protruding part at the lower end of the push tube is propped against the top surface of the accommodating cavity.
Preferably, the lower end of the middle part of the push tube allows the needle to be placed in, the inner diameter of the upper part of the push tube is contracted, and the upper part of the push tube allows the thimble to pass through. The pushing tube lower end clamps the needle so that the needle is more stable, and the middle part of the pushing tube can also be disassembled by adopting the thimble to assist the needle.
Further, the receiving cavity width allows the clip portion to open to release the needle.
Preferably, a limiting surface is arranged on one side of the outer ring of the flange. The setting of spacing face has made things convenient for holistic installation to erect. The limiting surface is only required to be erected in the shell for fixation, and the O-shaped ring can be arranged for clamping, so that vibration is damped, and vibration gaps are reduced.
Preferably, the ball limiting grooves used for embedding balls are uniformly distributed on one side of the retainer, and the ball limiting grooves arranged on one side are adopted to facilitate the installation and assembly of the retainer.
Preferably, the bearing further comprises a retainer ring which is covered on the other side of the outer ring of the flange and used for limiting the balls, and the retainer ring can effectively prevent the impact of air flow on the bearing. The leakage air flow is prevented from taking bearing lubricating substances away and flushing the bearing lubricating substances into the oral cavity.
Further, in order to guarantee the clamping force, the closing-in position of the upper end of the clamping sleeve is provided with a hole, and the grinding needle is clamped by the edge of the hole to improve the clamping force by adopting the hole design, so that the grinding needle is prevented from falling off.
When the bearing is used, the ball is clamped between the ball race on the outer ring of the flange and the ball race of the turbine shaft to form the bearing; the installation of the vehicle needle is consistent with that of a common pneumatic turbine, and when the vehicle needle is dismounted, the vehicle needle can be dismounted by pressing the push tube, and the vehicle needle can be dismounted by the aid of the ejector pin.
The invention has the beneficial effects that: the upper flange outer ring and the lower flange outer ring are mutually propped up the turbine shaft, the concentricity precision is high, the radial runout of the bearing is extremely small, the noise and the vibration are greatly reduced, and the internal air flow overflow can not cause the lubrication substance to be carried away very.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
FIG. 3 is an exploded view of the present invention.
Fig. 4 is a cross-sectional perspective view of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, 2, 3, 4: the push-fit turbine shaft comprises a turbine body 1, a push tube 2 and a clamping sleeve 3, wherein the turbine shaft is arranged in the middle of the turbine body 1, a through hole is axially formed in the middle of the turbine body 1, the turbine body 1 is formed by buckling an upper turbine 1-1 and a lower turbine 1-2, a containing cavity 1-3 is formed between the upper turbine 1-1 and the lower turbine 1-2, the push tube 2 is arranged on the upper turbine 1-1, the outer wall of the lower end of the push tube 2 is conical, a clamping part 3-1 for clamping a turning needle is arranged at the upper end of the clamping sleeve 3, the upper end of the clamping part 3-1 is provided with a horn-shaped opening, the side wall of the clamping part is provided with a radial slot 3-2, and the lower end of the push tube 2 is propped against the horn-shaped opening of the clamping part;
the turbine shaft is provided with a roller path 4, and the roller path 4 is positioned at the upper end and the lower end of the turbine body 1;
the turbine shaft is sleeved with a flange outer ring 5, a roller path, a ball retainer 6 and balls 7 are arranged on the inner wall of the flange outer ring 5, and the balls 7 are arranged in the retainer.
In this embodiment, the upper end of the clamping sleeve 3 is closed to form a clamping part for clamping the needle.
In this embodiment, a slot is formed in the side wall of the through hole of the lower turbine 1-2, and the lower end of the clamping sleeve is arranged in the slot in a tight fit manner.
In this embodiment, the pressing member is prevented from shaking during operation, the lower end of the push tube protrudes outwards, and the top surface of the protruding portion 2-1 of the lower end of the push tube 2 is abutted against the top surface of the accommodating cavity.
In this embodiment, the lower end 2-2 of the middle part of the push tube 2 allows the needle to be inserted, the inner diameter of the upper part of the push tube is contracted, and the upper part 2-3 of the push tube allows the thimble to pass through. The pushing tube lower end clamps the needle so that the needle is more stable, and the middle part of the pushing tube can also be disassembled by adopting the thimble to assist the needle.
In this embodiment, the width of the receiving cavity 1-3 allows the clamping portion to open to release the needle.
In this embodiment, a limiting surface 5-1 is disposed on one side of the outer ring of the flange. The setting of spacing face has made things convenient for holistic installation to erect. The limiting surface is only required to be erected in the shell for fixation, and the O-shaped ring 8 can be arranged for clamping, so that vibration is damped, and vibration gaps are reduced.
In this embodiment, the ball limiting grooves 9 for embedding balls are uniformly distributed on one side of the retainer 6, and the ball limiting grooves arranged on one side are adopted to facilitate the installation and assembly of the retainer.
In this embodiment, the bearing further comprises a retainer ring 10 covering the other side of the outer ring of the flange for limiting the balls, and the retainer ring 10 can effectively prevent the impact of air flow on the bearing. The leakage air flow is prevented from taking bearing lubricating substances away and flushing the bearing lubricating substances into the oral cavity.
In this embodiment, in order to guarantee the clamping strength, clamp sleeve upper end binding off department is equipped with trompil 11, adopts the trompil design to utilize the trompil border to press from both sides to establish the grinding needle and has improved the clamping strength, prevents that the grinding needle from droing.
Claims (3)
1. The push-fit turbine shaft is characterized in that: the device comprises a turbine body, a push pipe and a clamping sleeve, wherein a turbine shaft is arranged in the middle of the turbine body, a through hole is axially formed in the middle of the turbine body, the turbine body is formed by buckling an upper turbine and a lower turbine, a containing cavity is formed between the upper turbine and the lower turbine, the push pipe is arranged on the upper turbine, the outer wall of the lower end of the push pipe is conical, a clamping part for clamping a needle is arranged at the upper end of the clamping sleeve, the upper end of the clamping part is provided with a horn-shaped opening, a radial slot is formed in the side wall of the clamping part, and the lower end of the push pipe is propped against the horn-shaped opening of the clamping part;
the turbine shaft is provided with a roller path, and the roller path is positioned at the upper end and the lower end of the turbine body;
the turbine shaft is sleeved with a flange outer ring, a rollaway nest is arranged on the inner wall of the flange outer ring, a ball retainer and balls are arranged in the retainer;
the upper end of the clamping sleeve is closed to form a clamping part for clamping the needle;
the side wall of the lower turbine through hole is provided with a slot for arranging the lower end of the clamping sleeve, and the clamping sleeve is tightly matched in the slot;
the lower end of the push tube protrudes outwards, and the top surface of the protruding part at the lower end of the push tube is propped against the top surface of the accommodating cavity;
the lower end of the middle part of the push tube allows the needle to be placed in, the inner diameter of the upper part of the push tube is contracted, and the upper part of the push tube allows the thimble to pass through;
a limiting surface is arranged on one side of the outer ring of the flange;
ball limiting grooves for embedding balls are uniformly distributed on one side of the retainer;
the retainer ring is covered on the other side of the outer ring of the flange and used for limiting the balls.
2. The push-on turbine shaft as set forth in claim 1, wherein: the receiving cavity width allows the clip portion to open to release the needle.
3. The push-on turbine shaft as set forth in claim 1, wherein: and an opening is formed in the closing-in position of the upper end of the clamping sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440009.4A CN108005728B (en) | 2017-12-27 | 2017-12-27 | Press-push combined turbine shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440009.4A CN108005728B (en) | 2017-12-27 | 2017-12-27 | Press-push combined turbine shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005728A CN108005728A (en) | 2018-05-08 |
| CN108005728B true CN108005728B (en) | 2023-07-21 |
Family
ID=62061664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711440009.4A Active CN108005728B (en) | 2017-12-27 | 2017-12-27 | Press-push combined turbine shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005728B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109512532A (en) * | 2018-12-17 | 2019-03-26 | 宁波和平鸽口腔医疗器材有限公司 | Dental handpiece presses head |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519747A (en) * | 1982-01-20 | 1985-05-28 | Toyota Jidosha Kogyo Kabushiki Kaisha | Method for assembling an impeller onto a turboshaft |
| CN1461892A (en) * | 2002-05-31 | 2003-12-17 | 有限会社清水涡轮技术 | Method for connecting turbin shaft of turbocharger |
| CN104487674A (en) * | 2012-08-07 | 2015-04-01 | 博格华纳公司 | Compressor wheel with balance correction and positive piloting |
| CN105649687A (en) * | 2016-03-24 | 2016-06-08 | 中国北方发动机研究所(天津) | Thermal insulation structure for turbocharger |
-
2017
- 2017-12-27 CN CN201711440009.4A patent/CN108005728B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519747A (en) * | 1982-01-20 | 1985-05-28 | Toyota Jidosha Kogyo Kabushiki Kaisha | Method for assembling an impeller onto a turboshaft |
| CN1461892A (en) * | 2002-05-31 | 2003-12-17 | 有限会社清水涡轮技术 | Method for connecting turbin shaft of turbocharger |
| CN104487674A (en) * | 2012-08-07 | 2015-04-01 | 博格华纳公司 | Compressor wheel with balance correction and positive piloting |
| CN105649687A (en) * | 2016-03-24 | 2016-06-08 | 中国北方发动机研究所(天津) | Thermal insulation structure for turbocharger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108005728A (en) | 2018-05-08 |
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