CN106640750A - High-speed centrifugal compressor impeller rotor - Google Patents
High-speed centrifugal compressor impeller rotor Download PDFInfo
- Publication number
- CN106640750A CN106640750A CN201610851104.2A CN201610851104A CN106640750A CN 106640750 A CN106640750 A CN 106640750A CN 201610851104 A CN201610851104 A CN 201610851104A CN 106640750 A CN106640750 A CN 106640750A
- Authority
- CN
- China
- Prior art keywords
- rotor
- impeller
- centrifugal compressor
- rotor body
- stud
- 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
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- 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
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/662—Balancing of rotors
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A high-speed centrifugal compressor impeller rotor is composed of a lock nut, a dynamic balance ring, a stud, an impeller, a shell and a rotor body. The dynamic balance ring is provided with counterweight holes uniformly distributed and formed in the circumferential direction, and the lower end surface of the dynamic balance ring is tightly attached to the upper end surface of the impeller. A boss is reserved on the lower end surface of the impeller. The rotation direction of a thread of the stud is determined according to the direction of the rotor body during working, and the effect that tighter thread connection is achieved along with rotating during high speed rotating is ensured. The upper end surface of the rotor body is provided with a threaded hole, a thread at the lower end of the stud is connected with the rotor body, the upper end of the stud is connected with the lock nut, and a gap is reserved at the matching position of the shell and the impeller rotor body. According to the high-speed centrifugal compressor impeller rotor structure, the impeller and the rotor body are tightly locked together by connecting the stud with the lock nut; and as a traditional spline joint mode is eliminated, the problem that the unbalance amount of the rotor body is large due to the fact that grooves are formed in the circumferential direction of the rotor body can be solved, and the stability of the rotor during high-speed operating is effectively improved.
Description
Technical field
The present invention relates to a kind of high speed compressor vane rotor structure, more particularly to high-speed direct-drive blade wheel structure.
Background technology
Traditional low speed rotation equipment, overall efficiency is low, noise is big, volume is big, poor reliability.It is applied to compressor, drum
The impeller of the equipment such as blower fan, blower fan and the connected mode of rotor mainly with keyway and interference fit is realizing, for operation
Turn the high-speed direct-drive vane rotor structure of the above in per minute tens of thousands of or even hundreds of thousands, the notch effect that the keyway on axle is produced,
Stress concentration is easily produced, workpiece strength and life-span is affected, at high speeds keyway coordinates so that rotor dynamic balancing precision is difficult to protect
Card, using the vane rotor of interference fit so that dismounting is very difficult.In order to realize high rotating speed, it is ensured that vane rotor system
System stable operation at high speeds, need to be improved solution technical deficiency part to prior art.
The content of the invention
The present invention technology solve problem be：Overcome the deficiencies in the prior art, there is provided a kind of simple structure, technical maturity
Quick runner rotor structure, requirement of the high-speed direct-drive centrifugal compressor to rotor stability and reliability can be met.
The present invention solves the technical scheme of technical problem employing：A kind of high-speed centrifugal compressor impeller rotor, by locking
Tight nut, balancing loop, stud, impeller, casing, rotor composition.The balancing loop is along the circumferential direction provided with to be arranged
Row with repeated hole, balancing loop lower surface is parallel to be close to impeller upper surface, and the locking nut is provided with the groove of dismounting, described
Boss is left in impeller lower surface, and boss is used for duplicate removal during vane rotor static balance.The stud adopts alloy steel material, spiral shell
Line rotation direction determines according to direction during working rotor, it is ensured that threaded connection when rotating at a high speed turns tighter and tighter, for right-handed thread, turns
Sub- direction of rotation is seen as counterclockwise from rotor end-face；For left hand thread, otherwise.The upper surface of the rotor is provided with screw thread
Hole, the lower end screw thread of stud is connected with rotor, and the upper end of stud is connected with locking nut.Described impeller, double end
Cooperation between bolt, rotor is coaxially.
The present invention is because using above technical scheme, it has advantages below：Due to eliminating traditional keyway connected mode,
Can avoid slotting in rotor circumference direction and causing the increase of rotor unbalance value, stablizing when effectively improving rotor high-speed cruising
Property.
Description of the drawings
Fig. 1 is high speed compressor vane rotor structural representation；
Fig. 2 is on-line dynamic balancing ring schematic diagram；
Fig. 3 is locking nut schematic diagram；
Fig. 4 is impeller lower surface boss schematic diagram.
Specific embodiment
As shown in figure 1, the present invention is a kind of high speed compressor vane rotor structure, it is mainly by locking nut (1), dynamic
Gimbal (2), stud (3), impeller (4), casing (5), rotor (6) composition.Balancing loop (2) is along the circumferential direction provided with
Cloth arrangement with repeated hole as shown in Fig. 2 balancing loop (2) lower surface is parallel to be close to impeller (4) upper surface, impeller (4) inner circle
Post surface is coaxial with rotor (6) upper end mating surface, vertical with impeller (4) lower surface at the shaft shoulder to coordinate, on rotor (6) in shaft end
Heart position is provided with screwed hole, and screw thread internal surface of hole is coaxial with rotor (6).Impeller (4) and rotor (6) by locking nut (1) and
Stud (3) is threadedly coupled their axial compressions.The thread rotary orientation of stud (3) is true according to direction during working rotor
It is fixed, it is ensured that threaded connection when rotating at a high speed turns tighter and tighter, and for right-handed thread, rotor direction of rotation is seen as the inverse time from rotor end-face
Pin direction；For left hand thread, otherwise.After hydraulic means is by impeller (4) and rotor (6) axial compression, as shown in figure 3,
Locking nut (1) is tightened by two symmetrical holes.When vane rotor carries out static balance, under the duplicate removal position of impeller (4) is
The boss that end face is provided with, when vane rotor enters action balance, by being provided with increasing with repeated hole for uniform arrangement in balancing loop (2)
Method realize, should have the fit clearance of δ=0.6mm between impeller lower surface as shown in Figure 4 boss and casing (5) upper surface,
There is the fit clearance of ε=0.8mm between casing (5) internal diameter and rotor (6) internal diameter.
In addition it should be pointed out that heretofore described component names and shape can be every according to present inventive concept institute with difference
Modification, supplement and improvement that construction, feature and the principle stated is made, are regarded as protection scope of the present invention.
Claims (5)
1. a kind of high-speed centrifugal compressor impeller rotor, it is characterised in that：By locking nut (1), balancing loop (2), double end
Bolt (3), impeller (4), casing (5), rotor (6) composition；Described balancing loop (2) is along the circumferential direction provided with uniform arrangement
With repeated hole, impeller (4) upper surface is close in balancing loop (2) lower surface, described impeller (4) lower surface and rotor (6) upper end
The shaft shoulder is engaged, and has 0.6mm gaps, casing (5) internal diameter and rotor between impeller (4) lower surface boss and casing (5) upper surface
Have 0.8mm gaps between internal diameter, rotor (6) upper surface is provided with screwed hole, impeller (4) and rotor (6) by locking nut (1) and
Stud (3) threaded connection coordinates their axial compressions, locking nut (1) lower surface with balancing loop (2) upper surface.
2. a kind of high-speed centrifugal compressor impeller rotor according to claim 1, it is characterised in that：Described impeller
(4) inner periphery is coaxial with rotor (6) upper end mating surface, vertical with impeller (4) lower surface at the shaft shoulder to coordinate, under impeller (4)
End face leave boss as go during offline static balance reuse.
3. a kind of high-speed centrifugal compressor impeller rotor according to claim 1, it is characterised in that：Described dynamic balancing
Ring (2) lower surface is parallel with impeller (4) upper surface, along the circumferential direction there is the counterweight screwed hole that radial equipartition is arranged.
4. a kind of high-speed centrifugal compressor impeller rotor according to claim 1, it is characterised in that：Described rotor
(6) shaft end center is provided with screwed hole on, and screw thread internal surface of hole is coaxial with rotor (6).
5. a kind of high-speed centrifugal compressor impeller rotor according to claim 1, it is characterised in that：Described double end spiral shell
The thread rotary orientation of bolt (3) determines according to direction during working rotor, it is ensured that threaded connection when rotating at a high speed turns tighter and tighter, for the right side
Rotation screw thread, rotor direction of rotation is seen as counterclockwise from rotor end-face；For left hand thread, otherwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851104.2A CN106640750B (en) | 2016-09-26 | 2016-09-26 | A kind of high-speed centrifugal compressor impeller rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851104.2A CN106640750B (en) | 2016-09-26 | 2016-09-26 | A kind of high-speed centrifugal compressor impeller rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106640750A true CN106640750A (en) | 2017-05-10 |
| CN106640750B CN106640750B (en) | 2018-03-02 |
Family
ID=58853720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610851104.2A Expired - Fee Related CN106640750B (en) | 2016-09-26 | 2016-09-26 | A kind of high-speed centrifugal compressor impeller rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640750B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091119A (en) * | 2017-06-14 | 2017-08-25 | 南京航空航天大学 | Magnetic suspension turbo-expander impeller of rotor assembly and its localization method |
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
| CN107906045A (en) * | 2017-12-15 | 2018-04-13 | 南通大通宝富风机有限公司 | A kind of monopole centrifugal blower rotor |
| CN108488094A (en) * | 2018-05-11 | 2018-09-04 | 德清恒鑫电子有限公司 | A kind of anti-dropout pivot structure for fan |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110403A (en) * | 2014-08-06 | 2014-10-22 | 南京磁谷科技有限公司 | Air guide impeller assembly of centrifugal blower |
| CN104110402A (en) * | 2014-07-30 | 2014-10-22 | 无锡杰尔压缩机有限公司 | Semi-open type impeller structure with annular boss |
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
-
2016
- 2016-09-26 CN CN201610851104.2A patent/CN106640750B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110402A (en) * | 2014-07-30 | 2014-10-22 | 无锡杰尔压缩机有限公司 | Semi-open type impeller structure with annular boss |
| CN104110403A (en) * | 2014-08-06 | 2014-10-22 | 南京磁谷科技有限公司 | Air guide impeller assembly of centrifugal blower |
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091119A (en) * | 2017-06-14 | 2017-08-25 | 南京航空航天大学 | Magnetic suspension turbo-expander impeller of rotor assembly and its localization method |
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
| CN107906045A (en) * | 2017-12-15 | 2018-04-13 | 南通大通宝富风机有限公司 | A kind of monopole centrifugal blower rotor |
| CN108488094A (en) * | 2018-05-11 | 2018-09-04 | 德清恒鑫电子有限公司 | A kind of anti-dropout pivot structure for fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106640750B (en) | 2018-03-02 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |