CN106352777B - A kind of rotor of extension type is to moderate regulating device - Google Patents
A kind of rotor of extension type is to moderate regulating device Download PDFInfo
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- CN106352777B CN106352777B CN201610710778.0A CN201610710778A CN106352777B CN 106352777 B CN106352777 B CN 106352777B CN 201610710778 A CN201610710778 A CN 201610710778A CN 106352777 B CN106352777 B CN 106352777B
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 241000233855 Orchidaceae Species 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000003380 propellant Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
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- Manufacture Of Motors, Generators (AREA)
Abstract
A kind of rotor of extension type to moderate regulating device, including：Flange bracket (1), is adjusted axially screw rod (3) and lever indicator (4) at radiai adjustment screw rod (2)；The threaded connection that flange bracket (1) passes through flange with external motor output shaft, in tapped through hole of the radiai adjustment screw rod (2) by the boss for screwing into flange bracket (1), it is adjusted axially screw rod (3) to cross in the tapped through hole for the boss for screwing into radiai adjustment screw rod (2), lever indicator (4), which is fixed on, is adjusted axially screw rod (3) right end.The screw-in depth of radiai adjustment screw rod (2) is adjusted to adjust the radial position of lever indicator (4) measurement end, the screw-in depth of screw rod (3) is adjusted axially to adjust the axial position of lever indicator (4) measurement end, adjust the position of measurement end by above-mentioned regulative mode, so adjust rotor to moderate.The present invention can also be used to realize that rotor itself end face and outer circle bounce etc. measure function simultaneously.
Description
Technical field
The present invention relates to a kind of rotors of extension type to moderate regulating device, is mainly used in liquid-propellant rocket engine height
Rotor and motor output shaft adjusts moderate when fast turbo pump rotor high-speed balancing.
Background technology
In practice, rotating machinery misaligns that failure is very universal to engineering, accounts for 60% or more of rotor-support-foundation system failure.Turn
Son, which misaligns, will cause system to generate axial, radially alternating power, and then cause axial direction, radial vibration.Turn under condition of misalignment
Son movement, which can cause to vibrate, touches the regeneration failure such as mill between excessive, bearing wear, the deflection deformation of axis, rotor and stator, to being
The stable operation of system constitutes a threat to, and catastrophic failure will be caused when serious.
For the high-speed turbine pump rotor system high-speed dynamic balance running of liquid-propellant rocket engine, although from design,
It is worked into assembling test links and all carries out stringent concentricity control, but during practical set test adjustment, it is not right
Middle phenomenon still can be different degrees of presence, and as causing the key factor of turbo pump rotor system vibration failure.
The working speed of oxyhydrogen engine turbine pump is generally higher both at home and abroad at present, generally in 20000r/min or more, often
Using the flex rotor design being operated between one, second order even two, three rank critical speeds.Rotor is at high speed to misaligning
Quite sensitive, especially when excessively critical, any small misaligning can all generate apparent abnormal frequency, not only disturb experiment
The acquisition of data, it is easier to cause the fracture of motor output shaft and shaft coupling, have greatly dangerous.
Currently, common rotor-support-foundation system centering regulative mode substantially has two kinds of laser alignment instrument method and mechanical signing method.
Laser alignment instrument precision is higher, but equipment is expensive, complicated for operation, and can not monitor adjustment numerical value in real time in adjustment process.
And it is traditional it is mechanical make table centralising device and do not have scalability, have a single function, positioning accuracy is poor, can only achieve 0.05mm
Left and right.
Invention content
Present invention solves the technical problem that being：It overcomes the shortage of prior art, provides a kind of rotor of extension type to moderate
Regulating device, simple in structure, own wt is light, and deflection deformation is small, and positioning accuracy is high, simple installation, while having scalability,
It is applicable to being adjusted to moderate for the rotor of different structure.
The technical solution that the present invention solves is：A kind of rotor of extension type to moderate regulating device, including：Flange bracket
(1), radiai adjustment screw rod (2), be adjusted axially screw rod (3) and lever indicator (4)；
Flange bracket (1) includes flange and sleeve shaft, flange in one end of sleeve shaft, and flange and sleeve shaft one at
Type；The sleeve shaft of flange bracket (1) is fixedly connected with the output shaft of external motor by flange；
The other end of sleeve shaft is provided with first boss, there is the central axis of tapped through hole, tapped through hole in first boss
With the central axis upright of sleeve shaft；
Radiai adjustment screw rod (2) includes external screw thread stud and second boss, and one end of external screw thread stud is second boss, the
Tapped through hole is provided on two boss, the central axis of the tapped through hole of second boss is in the outer spiral shell of radiai adjustment screw rod (2)
The central shaft of line stud；On the other end of the external screw thread stud of radiai adjustment screw rod (2) and the first boss of flange bracket (1)
Tapped through hole is threadedly coupled, and is fastened by nut；
It includes main regulation screw rod, clamping part and connecting rod to be adjusted axially screw rod (3), and external screw thread, connection are carried in connecting rod
The diameter of bar is less than the diameter of main regulation screw rod, and rectangular clamping part is stretched out in one end of main regulation screw rod, main regulation screw rod it is another
End is connected with one end of connecting rod, and main regulation screw rod and the same central shaft of connecting rod；The rectangular clamping part of main regulation screw rod passes through
Tapped through hole in the second boss of radiai adjustment screw rod (2), main regulation screw rod connect with the tapped through hole screw thread in second boss
It connects；
Lever indicator (4) is provided with internal thread connecting rod, is adjusted axially the other end and lever of the connecting rod of screw rod (3)
The internal thread connecting rod of dial gauge (4) is threadedly coupled, and is adjusted axially the central shaft and lever indicator of the connecting rod of screw rod (3)
(4) central axis of internal thread connecting rod.
Flange is provided in the external motor, the flange on the flange and external motor of flange bracket (1) passes through 6 M4
Screw is fixed.
The screw thread of tapped through hole in the first boss and the screw thread of the external screw thread stud of radiai adjustment screw rod (2) are
M8 screw threads
In the second boss of the screw thread being adjusted axially on the main regulation screw rod of screw rod (3) and radiai adjustment screw rod (2)
The screw thread of tapped through hole be M8 screw threads.
The external screw thread that the connecting rod for being adjusted axially screw rod (3) carries is M5 screw threads.
Flange bracket material is titanium alloy, and flange bracket is hollow thin-wall structure.
It is provided with positioning groove on flange on flange bracket, flange is provided on the output shaft of external motor, and external
Be provided on the flange of the output shaft of motor with the matched positioning convex platform of positioning groove, make the sleeve shaft and external electrical of flange bracket
Machine output shaft coaxially positions, and improves positioning accuracy.
The advantages of the present invention over the prior art are that：
(1) the configuration of the present invention is simple, it is easy for installation.It is directly threadably secured between all parts, installation and adjustment are simple, carry
High centering adjusts efficiency.
(2) invention itself is light-weight, and flange bracket uses thin-walled hollow structure, measures and uses lever indicator, structure
Overall weight is light, and deflection deformation is small, can effectively reduce measured deviation.
(3) positioning accuracy of the present invention is high, and flange bracket one end is axially and radially located with motor output shaft end, it is ensured that
The rotation center of flange bracket is consistent with gearbox output shaft, improves centering degree of regulation.
(4) adjustable extent of the present invention is wide, and the device current axial stretching ranging from 80mm, radial expansion is ranging from
50mm can meet being adjusted to moderate for most of rotors.
(5) present invention adjusts accuracy of alignment height, since the present apparatus uses dial gauge measured place alignment deviation value, is adjusting
When section is to moderate, dial gauge can be placed in the orientation for needing to adjust, and rotor or motor are adjusted according to dial gauge accuracy of reading
The position of output shaft.This adjusting method degree of regulation is high, can reach 0.01mm.
(6) the achievable multipurpose of the present invention measures, the present apparatus can not only measure different sized rotors to moderate, may be used also
To measure end face and the outer circle bounce of rotor itself.
Description of the drawings
A kind of rotor for extension type that Fig. 1 inventions provide is to moderate regulating device structure and applies installation diagram；
The concentricity test result comparison vertical with existing apparatus of Fig. 2 apparatus of the present invention；
Fig. 3 apparatus of the present invention are compared with the horizontal concentricity test result of existing apparatus.
Specific implementation mode
The present invention basic ideas be：A kind of rotor of extension type to moderate regulating device, including：Flange bracket (1),
Radiai adjustment screw rod (2) is adjusted axially screw rod (3) and lever indicator (4)；Flange bracket (1) is logical with external motor output shaft
Cross the threaded connection of flange, in tapped through hole of the radiai adjustment screw rod (2) by the boss for screwing into flange bracket (1),
It is adjusted axially screw rod (3) to cross in the tapped through hole for the boss for screwing into radiai adjustment screw rod (2), lever indicator (4) is solid
It is scheduled on and is adjusted axially screw rod (3) right end.The screw-in depth of radiai adjustment screw rod (2) is adjusted to measure to adjust lever indicator (4)
The radial position at end is adjusted axially the screw-in depth of screw rod (3) to adjust the axial position of lever indicator (4) measurement end, leads to
Above-mentioned regulative mode is crossed to adjust the position of measurement end, so adjust rotor to moderate.The present invention can also be used to realize simultaneously
Rotor itself end face and outer circle bounce etc. measure function.
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, the present invention a kind of extension type rotor to moderate regulating device, including：Flange bracket (1),
Radiai adjustment screw rod (2) is adjusted axially screw rod (3) and lever indicator (4).
Flange bracket (1) includes flange and sleeve shaft, flange in one end of sleeve shaft, and flange and sleeve shaft one at
Type；Flange on the flange and external motor of flange bracket (1) is fixed by 6 M4 screws.Flange bracket material is titanium alloy,
Flange bracket is hollow thin-wall structure, measures and uses lever indicator, reduces structure overall weight, reduce deflection deformation
Degree, restrained effectively measured deviation.
It is provided with positioning groove on flange on flange bracket, flange is provided on the output shaft of external motor, and external
Be provided on the flange of the output shaft of motor with the matched positioning convex platform of positioning groove, make the sleeve shaft and external electrical of flange bracket
Machine output shaft coaxially positions, it is ensured that the rotation center of flange bracket is consistent with gearbox output shaft, improves centering tune
Save precision.
The other end of sleeve shaft is provided with first boss, there is tapped through hole, the central axis of tapped through hole in first boss
With the central axis upright of sleeve shaft, the concentricity requirement of device ensure that.
Radiai adjustment screw rod (2) includes external screw thread stud and second boss, and one end of external screw thread stud is second boss, the
Tapped through hole is provided on two boss, the central axis of the tapped through hole of second boss is in the outer spiral shell of radiai adjustment screw rod (2)
The central shaft of line stud；On the other end of the external screw thread stud of radiai adjustment screw rod (2) and the first boss of flange bracket (1)
Tapped through hole is threadedly coupled, and is fastened by nut.
It includes main regulation screw rod, clamping part and connecting rod to be adjusted axially screw rod (3), and external screw thread, connection are carried in connecting rod
The diameter of bar is less than the diameter of main regulation screw rod, and rectangular clamping part is stretched out in one end of main regulation screw rod, main regulation screw rod it is another
End is connected with one end of connecting rod, and main regulation screw rod and the same central shaft of connecting rod；The rectangular clamping part of main regulation screw rod passes through
Tapped through hole in the second boss of radiai adjustment screw rod (2), main regulation screw rod connect with the tapped through hole screw thread in second boss
It connects.
Lever indicator (4) is provided with internal thread connecting rod, is adjusted axially the other end and lever of the connecting rod of screw rod (3)
The internal thread connecting rod of dial gauge (4) is threadedly coupled, and is adjusted axially the central shaft and lever indicator of the connecting rod of screw rod (3)
(4) central axis of internal thread connecting rod.
Mounting means in this way simplifies test procedure, improves work efficiency.
The connecting rod for being adjusted axially screw rod (3) is the screw thread of M5, this is to match with the internal thread of lever indicator (4)；
It is that alleviator weight is convenient for adjusting, aid position is designed to the square of 5X5；Intermediate adjusting screw rod position, is designed to M8
Screw thread, be equivalent to after being installed due to whole device as a cantilever beam structure, if screw rod is overweight, device inherently can
Larger deformation is generated during the test, so should make small and longer because of adjusting screw rod position, the choosing of installation weight as possible
M8 screw threads are selected, solve the problems, such as that diameter is too small, rigidity of structure requirement is unsatisfactory for, so considering, both improves device in this way
Required precision, in turn ensure rigidity requirement.
The device of the invention current axial stretching ranging from 0~80mm, radial expansion ranging from 0~50mm.Axially stretch
Contracting range be according to rotor-end at a distance from external motor output shaft and determination, the axial stretching range of 80mm can be coped with absolutely
Most of situation；Radial expansion range considers the radial dimension of the abutment shaft of testpieces, so the radial expansion range of 50mm
Meet experiment.As axial stretching ranging from 80mm, radial expansion ranging from 50mm telescopic extensions design save experiment at
This also meets test requirements document simultaneously.
Radiai adjustment screw rod (2), the external screw thread for being adjusted axially screw rod (3) use the screw pitch of 0.5mm, in this way in adjustment process
In, step distance can well be controlled, improves the precision and stability of centering adjusting.
The measurement range of the present apparatus is big, adaptable, can not only measure different sized rotors to moderate, can also survey
Measure the parameters such as end face and the outer circle bounce of rotor itself.
The operation principle of the present apparatus：
When revolving outer motor output shaft, you can measure rotor-end relative to motor output shaft vertically and horizontally
Concentricity tolerance numerical value passes through regulation motor end repeatedly or the position of rotor-end, you can makes rotor and motor output shaft holding pair
In.It, can be with by changing axial direction and the radial stroke of screw rod and the fixed position of lever indicator of centering adjusting device
Realize test different sized rotors and motor output shaft to the measurement function such as moderate, rotor itself end face and outer circle bounce.
A kind of rotor of extension type of the present invention includes carrying axle center to the measured piece that moderate regulating device is used for measuring
And the revolving part (i.e. rotor-end) that section is circular, when measurement, the measurement end of lever indicator (4) pushes down the appearance of revolving part
Face, measure revolving part and external motor output shaft to moderate.Specific adjusting method, steps are as follows：
(1) positioning groove on flange bracket is connect with the positioning convex platform on external motor output shaft flange, makes flange
The sleeve shaft of holder is coaxially positioned with external motor output shaft；
(2) it adjusts radiai adjustment screw rod (2) and is adjusted axially screw rod (3), so that the measurement end of lever indicator (4) is pushed down and turn
The outer surface at sub- end；
(3) revolving outer motor output shaft one week collects the bounce data that lever indicator (4) acquires, obtains measured piece
Vertically and horizontally Concentricity tolerance numerical value of the rotor-end relative to external motor output shaft；
(4) radial position for adjusting external motor output shaft or rotor-end repeatedly, makes rotor-end and external motor output shaft
Reach the accuracy of alignment of requirement.
As shown in Figures 2 and 3, it is that apparatus of the present invention are compared with the horizontal concentricity test result of existing apparatus, horizontal seat in figure
It is designated as test number (TN), ordinate is concentricity test number (unit mm).The test essence of existing apparatus it can be seen from Fig. 2 Fig. 3
Degree is in the level that both horizontally and vertically all can only achieve 0.06mm or so, and the concentricity measuring accuracy of apparatus of the present invention is in water
Gentle vertical direction can reach within outstanding index (0.03mm), compared with the prior device, greatly improve centering essence
Degree.
Claims (7)
1. a kind of rotor of extension type is to moderate regulating device, it is characterised in that including：Flange bracket (1), radiai adjustment spiral shell
Bar (2) is adjusted axially screw rod (3) and lever indicator (4)；
Flange bracket (1) includes flange and sleeve shaft, and flange is in one end of sleeve shaft, and flange is integrally formed with sleeve shaft；Method
The sleeve shaft of blue holder (1) is fixedly connected with the output shaft of external motor by flange；
The other end of sleeve shaft is provided with first boss, there is the central axis and cylinder of tapped through hole, tapped through hole in first boss
The central axis upright of shape axis；
Radiai adjustment screw rod (2) includes external screw thread stud and second boss, and one end of external screw thread stud is second boss, and second is convex
Tapped through hole is provided on platform, the central axis of the tapped through hole of second boss is in the external screw thread spiral shell of radiai adjustment screw rod (2)
The central shaft of column；The other end of the external screw thread stud of radiai adjustment screw rod (2) and the screw thread in the first boss of flange bracket (1)
Through hole whorl connects, and is fastened by nut；
It includes main regulation screw rod, clamping part and connecting rod to be adjusted axially screw rod (3), and external screw thread is carried in connecting rod, connecting rod
Diameter is less than the diameter of main regulation screw rod, and rectangular clamping part is stretched out in one end of main regulation screw rod, the other end of main regulation screw rod with
One end of connecting rod is connected, and main regulation screw rod and the same central shaft of connecting rod；The rectangular clamping part of main regulation screw rod passes through radial
Tapped through hole in the second boss of adjusting screw rod (2), main regulation screw rod are threadedly coupled with the tapped through hole in second boss；
Lever indicator (4) is provided with internal thread connecting rod, is adjusted axially the other end and lever percentage of the connecting rod of screw rod (3)
The internal thread connecting rod of table (4) is threadedly coupled, and is adjusted axially the central shaft and lever indicator (4) of the connecting rod of screw rod (3)
The central axis of internal thread connecting rod.
2. a kind of rotor of extension type according to claim 1 is to moderate regulating device, it is characterised in that：The outside
Flange is provided on motor, the flange on the flange and external motor of flange bracket (1) is fixed by 6 M4 screws.
3. a kind of rotor of extension type according to claim 1 is to moderate regulating device, it is characterised in that：Described first
The screw thread of tapped through hole on boss and the screw thread of the external screw thread stud of radiai adjustment screw rod (2) are M8 screw threads.
4. a kind of rotor of extension type according to claim 1 is to moderate regulating device, it is characterised in that：The axial direction
The screw thread of screw thread and the tapped through hole in the second boss of radiai adjustment screw rod (2) on the main regulation screw rod of adjusting screw rod (3)
It is M8 screw threads.
5. a kind of rotor of extension type according to claim 1 is to moderate regulating device, it is characterised in that：The axial direction
The external screw thread that the connecting rod of adjusting screw rod (3) carries is M5 screw threads.
6. a kind of rotor of extension type according to claim 1 is to moderate regulating device, it is characterised in that：Flange bracket
Material is titanium alloy, and flange bracket is hollow thin-wall structure.
7. a kind of rotor of extension type according to claim 1 is to moderate regulating device, it is characterised in that：Flange bracket
On flange on be provided with positioning groove, flange, and the method for the output shaft of external motor are provided on the output shaft of external motor
Be provided on orchid with the matched positioning convex platform of positioning groove, keep the sleeve shaft of flange bracket coaxially fixed with external motor output shaft
Position, improves positioning accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710778.0A CN106352777B (en) | 2016-08-23 | 2016-08-23 | A kind of rotor of extension type is to moderate regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710778.0A CN106352777B (en) | 2016-08-23 | 2016-08-23 | A kind of rotor of extension type is to moderate regulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106352777A CN106352777A (en) | 2017-01-25 |
| CN106352777B true CN106352777B (en) | 2018-07-24 |
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| CN201610710778.0A Active CN106352777B (en) | 2016-08-23 | 2016-08-23 | A kind of rotor of extension type is to moderate regulating device |
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| CN109341463B (en) * | 2018-11-28 | 2023-09-22 | 中国电子科技集团公司第三十八研究所 | Measuring device suitable for detect work piece terminal surface circle and beat |
| CN112414278A (en) * | 2020-11-02 | 2021-02-26 | 广东电网有限责任公司 | Cylinder axiality offset measuring tool |
| CN112894675B (en) * | 2021-01-19 | 2022-05-03 | 杭州特翌智科技有限公司 | Centering device for aircraft engine assembling machine |
| CN115302238A (en) * | 2022-08-27 | 2022-11-08 | 北京中海沃邦能源投资有限公司 | Compressor unit coupling centering frock |
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| CN202836402U (en) * | 2012-07-26 | 2013-03-27 | 宣化钢铁集团有限责任公司 | Butted rotor coaxiality alignment apparatus |
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|---|---|
| CN106352777A (en) | 2017-01-25 |
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