CN107356187A - A kind of eccentric measure device of motor gas-gap - Google Patents
A kind of eccentric measure device of motor gas-gap Download PDFInfo
- Publication number
- CN107356187A CN107356187A CN201710561281.1A CN201710561281A CN107356187A CN 107356187 A CN107356187 A CN 107356187A CN 201710561281 A CN201710561281 A CN 201710561281A CN 107356187 A CN107356187 A CN 107356187A
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- Prior art keywords
- motor
- measurement
- gap
- fixed mount
- dial gauge
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
A kind of eccentric measure device of motor gas-gap, including misalignment measurement component and air gap measurement assembly；Misalignment measurement component includes fixed mount, support bar and eccentricity detecting dial gauge；Motor is fixed on sole plate by fixed mount, and measurement of air gap component is installed respectively on the axle that motor both ends are stretched out；The fixed mount has a regulation screwed hole, and installation and adjustment bolt in hole, regulating bolt props up outer surface of motor；Support bar is installed at fixed mount both ends respectively, and support boom end clamping eccentricity detecting dial gauge, eccentricity detecting dial gauge is in horizontal positioned, and the measurement head of eccentricity detecting dial gauge props up motor under-chassis side；The measurement of air gap component includes Magnetic gauge stand, universal adjustment bar and gap measurement dial gauge；Magnetic gauge stand is adsorbed on sole plate, and universal adjustment bar is installed on Magnetic gauge stand；The upper end clamping gap measurement dial gauge of universal adjustment bar, gap measurement dial indicator measuring head prop up motor shaft surface.The present invention can realize the eccentric accurate measure of motor gas-gap, easy for installation.
Description
Technical field
The invention belongs to a kind of motor oscillating field, and in particular to a kind of eccentric measure device of motor gas-gap.
Background technology
Motor is the most frequently used power source, and one of the principal vibration of plant equipment, noise source, its level of vibration are direct
Equipment reliability of operation is had influence on, especially in naval vessel field, vibration noise is the problem of receiving much concern all the time.Therefore develop
Low noise motor turns into reduces motor radiation noise effective measures.
The motor oscillating mainly vibration as caused by electromagnetic excitation and mechanical excitation, passes through motor bearing end cover and support transmission
To under-chassis, electric and magnetic oscillation is electromagnetic force wave caused by electromagnetic field in motor gas-gap, evokes motor stator, rotor oscillation and is delivered to
Support, it is relevant with the factor such as harmonic field in motor gas-gap and resulting electromagnetic force wave amplitude, frequency, series；Machinery
Vibration is mainly caused by motor bearings, fan, rotor quality imbalance etc..The research to motor oscillating is concentrated mainly on imitative at present
In terms of true calculating and simple spectrum analysis, existing motor is during experiment, because motor stator and rotor pass through bearing end
Lid is connected with each other, it is impossible to realizes the physical separation of stator and rotor.The designed one kind of the research of China Shipbuilding Industry Corporation the 704th
Motor (the license notification number of rotor vibration characteristics physical separation can be realized：CN 102RR9970 B), the invention introduction
Electromechanics excitation and the separation method and its device of electromagnetic excitation, and mention the available device to carry out electric machine rotor eccentric
Amount influences to test on motor oscillating, in the regulation for realizing rotor difference offset, uses by way of pad, adjusts
The absolute altitude of whole motor front and rear cover, or the method for the absolute altitude with pad adjustment motor stator.Searching document, which does not find other, to be had
It is related to the introduction in terms of motor eccentric adjusting.
But the adjusting method mentioned of above-mentioned patent is simply adjusted and realizes air gap eccentric centre in height, in addition pad
When will necessarily unclamp whole bolts, due to bolt with respect to bolt hole it is thinner, can lift front and rear cover when cause skew, no
The accuracy of institute's eccentric amount is can guarantee that, and offset can only be adjusted by step-length of pad gauge thickness, raises also time-consuming expense
Power, regulative mode are rough.
In terms of measurement, the method for the relative position of useful dial gauge measurement rotor relative stator inner surface is determined to reach
Son, the purpose of rotor coaxial, the error for the problems such as circularity can be introduced, cause measurement inaccurate；With clearance gauge insertion stator, rotor week
It can be limited to air gap to determine the method for offset by clearance gauge specification, and the cambered surface of air gap is measured with the plane of clearance gauge
Inherently irrational measurement.Also have and paste search coil in stator inner surface to measure offset, this method, which easily causes, to be turned
Son scratches to search coil, causes danger, and makes difficulty and be not easy to implement.By consulting literatures, have no directly accurate at present
Measure stator, the relevant report of rotor separation motor gas-gap.Accordingly, it is difficult to realize that stator, rotor eccentricity are accurately adjusted, can not
Complete motor stator, the experimental study that rotor eccentricity influences on motor oscillating.
The content of the invention
It is an object of the invention to provide a kind of electric machine rotor offset can adjust, and the eccentric measurement of rotor is accurate
The eccentric measure device of motor gas-gap.
The object of the present invention is achieved like this, a kind of eccentric measure device of motor gas-gap, including misalignment measurement component and
Measurement of air gap component；Misalignment measurement component includes fixed mount, support bar and eccentricity detecting dial gauge；Fixed mount is arranged in motor two
Side, motor are fixed on sole plate by fixed mount, and measurement of air gap component is installed respectively on the axle that motor both ends are stretched out；
The fixed mount has a regulation screwed hole, and installation and adjustment bolt in hole, regulating bolt props up outer surface of motor；Fixed mount
Both ends are separately installed with support bar, support boom end clamping eccentricity detecting dial gauge, and eccentricity detecting dial gauge is in horizontal positioned, partially
The measurement head of heart detection dial gauge props up motor under-chassis side；
The measurement of air gap component includes Magnetic gauge stand, universal adjustment bar and gap measurement dial gauge；Magnetic gauge stand adsorbs
On sole plate, universal adjustment bar is installed on Magnetic gauge stand；The upper end clamping gap measurement dial gauge of universal adjustment bar, gas
The measurement head of gap detection dial gauge props up motor shaft surface.
The present invention can also include：
1. the fixed mount length is less than motor stator under-chassis length, and in the middle part of the motor stator under-chassis that aligns.
2. the support bar center of fixed mount and regulation screwed hole are centrally located on same straight line；
3. adjust screwed hole in fixed mount to be located proximate in the middle part of motor under-chassis.
The present invention has the advantages that：
Apparatus of the present invention installation and adjustment are convenient, and the degree of accuracy is high；Gasket type regulation will be lifted and be changed into horizontal screw type regulation, even
Continuous property is good, is not limited by pad specification；, will be since position of center line partially on the basis of motor stator surface and rotor outer surface
Transfer is changed into offseting since a certain side, needs to find rotor concentric position ability when avoiding motor gas-gap eccentric adjusting
The problem of regulation；Regulation process and result are monitored in real time with dial gauge, and precision greatly improves compared with clearance gauge method, and can be adjusted a variety of inclined
Heart shaped state；Because whole process has regulating bolt to withstand stator, position deviation will not be produced because unclamping under-chassis bolt, test result
It is relatively reliable.
Brief description of the drawings
Fig. 1 is fixed rack structure figure of the present invention.
Fig. 2 is apparatus of the present invention schematic diagram.
Fig. 3 is the front view of apparatus of the present invention.
Fig. 4 is the top view of apparatus of the present invention.
Embodiment
The present invention is further elaborated below in conjunction with the accompanying drawings.
Motor gas-gap bias is measured using apparatus of the present invention.As shown in Figure 2 to 4, a kind of motor gas-gap is eccentric
Determine device, including misalignment measurement component and air gap measurement assembly；As depicted in figs. 1 and 2, misalignment measurement component includes fixed mount
7th, support bar 19 and eccentricity detecting dial gauge 6；Fixed mount length is less than motor stator under-chassis length, and the motor stator under-chassis that aligns
Middle part.The support bar center of fixed mount and regulation screwed hole are centrally located on same straight line；Screw thread hole site is adjusted in fixed mount
In the middle part of motor under-chassis.
Two fixed mounts of identical are arranged in motor both sides, and motor 1 is fixed on sole plate by fixed mount, motor two
Hold and measurement of air gap component is installed respectively on the axle 3 stretched out；
The fixed mount 7 has two regulation screwed holes, and installation and adjustment bolt 10,11 in hole, regulating bolt is propped up outside motor
Surface；Fixed mount both ends are separately installed with support bar, support boom end clamping eccentricity detecting dial gauge, and eccentricity detecting dial gauge is in
Horizontal positioned, the measurement head of eccentricity detecting dial gauge props up motor under-chassis side；
The measurement of air gap component includes Magnetic gauge stand 6, universal adjustment bar 17 and gap measurement dial gauge 16；Magnetic gauge stand
On sole plate 4, universal adjustment bar 17 is installed on Magnetic gauge stand 6 for 6 absorption；The upper end clamping air gap inspection of universal adjustment bar 17
Dial gauge 16 is surveyed, the measurement head of gap measurement dial gauge 16 props up the surface of motor shaft.
Motor 1 is fixed on sole plate by fixed mount；The axle 3 of motor 1 stretches out motor both ends；The axle 3 at the both ends of motor 1
Distribution passes through bearings, and bearing is positioned on sole plate 4；
As shown in figure 3, there are support bar, support boom end clamping eccentricity detecting dial gauge 6, eccentricity detecting hundred in fixed mount both ends
It is in horizontal positioned to divide table 6, and the measurement head of eccentricity detecting dial gauge 6 props up stator under-chassis side；Magnetic gauge stand 5 is adsorbed at basic bottom
On plate 4, universal adjustment bar 17 is installed on Magnetic gauge stand 5；The upper end clamping gap measurement dial gauge 16 of universal adjustment bar 17, gas
The measurement head of gap detection dial gauge 16 props up axle surface.
Fixed mount has regulation screwed hole, installation and adjustment bolt in the position of alignment motor under-chassis flat board.
With reference to figure, present invention arrangement fixed mount 7,24, fixing bolt 8,9,21,22, regulating bolt 11,10,20,23；Gas
Gap detects dial gauge 16,15, Magnetic gauge stand 5,13, universal adjustment bar 17,18, eccentricity detecting dial gauge 6,12, support bar 19.Drive
Moved end end cap 2, non-drive end shield 14.
The present invention proposes a kind of realize for motor oscillating experiment stator, rotor separation motor gas-gap eccentric adjusting problem
The device of motor stator, rotor accurate adjustment, vertical regulation is become into Level tune, and the bias of rotor can be accurately measured
Amount, this method degree of regulation is high, thoroughly avoids the deviation that elasticity bolt is brought, linear adjustable offset；Measurement accuracy is high,
Can real-time monitored, method is simple and easy.
Technical scheme is as follows：
Motor stator is arranged on sole plate, and adjustment stator, rotor center are high consistent, and under-chassis is normally fixed with bolt.
Fixed mount length is slightly less than stator under-chassis length, and sole plate side is arranged on fixing bolt, and in the middle part of the stator under-chassis that aligns；
There is regulation screwed hole in the position of fixed mount top alignment under-chassis flat board, screw in regulating bolt, withstand under-chassis flat board
Side；There is support bar on fixed mount both sides, support boom end has clamping device, can clamp eccentricity detecting dial gauge, and in level
Position, dial indicator measuring head prop up stator under-chassis side, make indicators turn one week, there is registration；Magnetic gauge stand is adsorbed at basic bottom
On plate, retained part clamping gap measurement dial gauge, and dial gauge is horizontal positioned, with armature spindle in same level, survey
Amount head props up spindle central, has registration, screws the lock handle of Magnetic gauge stand.
The adjusting method of the adjusting means eccentric for motor gas-gap is：Motor under-chassis bolt is unclamped, on the fixed mount of one end
Regulating bolt synchronously unscrew gradually, while the regulating bolt on another side fixed mount is screwed gradually, makes stator cage parallel
Translation, stator inner circle progressively presses close to rotor outer circle in the horizontal plane, and when gap measurement percentage list index is beated, stopping screws tune
Bolt is saved, now shows that stator inner circle is slightly bonded with rotor outer circle, this side air gap screwed is zero, now writes down eccentricity detecting
Dial gauge numerical value a1, b1；Then reverse adjustment regulating bolt, equally allows stator cage parallel translation, when gap measurement dial gauge
When pointer is beated, the stator inner circle of opposite side is slightly bonded with rotor outer circle, shows that air gap reaches maximum position, writes down eccentric inspection
Dial gauge numerical value a2, b2 is surveyed, dial gauge numerical value will be made the difference twice, you can obtain the unilateral maximum air gap δ of rotor.It is maximum in air gap
Side gradually screw regulating bolt, opposite side gradually unscrews regulating bolt, while pays attention to observing eccentricity detecting dial gauge 6,12
Pointer, when pointer is all moved to position a3, b3 of needs, under-chassis bolt is fastened, now the difference a3- of motor stator offset
A2, b3-b2 are exactly required air gap eccentric centre amount.
Having measured can continue to continuously adjust offset outside the data under this operating mode.Under-chassis bolt is unclamped, continues to screw
The regulating bolt of 1# fixed mounts, while the regulating bolt of 2# fixed mounts is unscrewed, observation dial gauge A, B pointer, equivalent dial gauge
When pointer is all moved to position a4, b4 of needs, under-chassis bolt is fastened, now difference a4-a3, b4- of motor stator offset
B3 is exactly required air gap eccentric centre amount.
A kind of eccentric measure device of motor gas-gap proposed by the present invention, including fixed mount 7,24, fixing bolt 8,9,21,
22, regulating bolt A, B, C, D correspond to 11,10,20,23 respectively；Including gap measurement dial gauge A16, B15, Magnetic gauge stand A5,
B13, universal adjustment bar 17,18, eccentricity detecting dial gauge A6, B12, support bar 19.Other also have the split motor tested：Machine
Body 1, drive end end cap 2, axle 3, sole plate 4, non-drive end shield 14.
Motor stator 1 is arranged on sole plate 4, and adjustment stator 1, the center of armature spindle 3 are high consistent, and under-chassis bolt is normal
It is fixed.Measurement is partially installed on regulation part, is fixed on by fixed mount 7 on sole plate 4.The length of fixed mount 7 is slightly less than
Stator footing piece length, there is screwed hole position of the side of sole plate 4 in the middle part of alignment stator footing piece, with fixing bolt 8,9
Installed in the side of sole plate 4, and in the middle part of the stator footing piece that aligns；There is regulation in the position of the top of fixed mount 7 alignment footing piece
Screwed hole, regulating bolt A11, B10 is screwed in, withstands footing piece side；There is screwed hole in the both sides sustained height of fixed mount 7, support
The one end of bar 19 is stud, and stud is screwed in the screwed hole of the both sides of fixed mount 7, and the other end of support bar 19 has clamping device, can clamped
Eccentricity detecting dial gauge A6, B12, and be horizontal, dial indicator measuring head props up stator footing piece side, makes indicators turn about
One week, compression measurement head had certain registration；Mounting and fixing support 24, screw-in are adjusted in the same manner at stator opposite side under-chassis position
Bolt C20, D23 are saved, but without installation detection dial gauge.Magnetic gauge stand A5, B13 are adsorbed on sole plate 4, retained part folder
Gap measurement dial gauge A16, B15 are held, adjusts dial gauge posture, dial gauge is horizontal positioned, and with rotor axis in same water
In plane, measurement head props up spindle central, and compression measurement head has certain registration, screws the locking hand of universal adjustment bar 17,18
Handle.
A kind of eccentric adjusting method example of motor gas-gap：Motor under-chassis bolt is unclamped, the regulating bolt on 1# fixed mounts 7
10th, 11 synchronously unscrew gradually, while the regulating bolt 20,23 on another side 2# fixed mounts 24 is screwed gradually, allow stator cage
Towards the parallel translation of 1# fixed mounts 7, stator inner circle progressively presses close to rotor outer circle in the horizontal plane, when gap measurement dial gauge 15,16
When pointer starts slightly to beat, stop the operation of regulating bolt 10,11,20,23, now show that stator inner circle and rotor outer circle are light
Micro- fitting, i.e. the air gap of this side of 2# fixed mounts 24 is zero, now writes down eccentricity detecting dial gauge A6, B12 numerical value a1, b1；So
Reverse adjustment regulating bolt afterwards, equally allows stator cage towards the direction parallel translation of 2# fixed mounts 24, when gap measurement dial gauge 15,
When 16 pointers are beated, the stator inner circle of opposite side is slightly bonded with rotor outer circle, shows that the side air gap of 2# fixed mounts 24 reaches most
Greatly, eccentricity detecting dial gauge A6, B12 numerical value a2, b2 are write down, dial gauge numerical value will make the difference a1-a2 or b1-b2 twice, you can
To the unilateral maximum air gap δ of rotor.Regulating bolt is gradually now screwed in the maximum side of air gap, opposite side gradually unscrews regulation
Bolt screws regulating bolt 20,23, unscrews regulating bolt 10,11, while notices that observing eccentricity detecting dial gauge A6, B12 refers to
Pin, when equivalent percentage list index is all moved to the position of needs, numerical value a3, b3 are write down, motor under-chassis bolt is fastened, it is now electric
The difference a3-a2 or b3-b2 of machine stator offset are exactly required air gap eccentric centre amount.
Having measured can continue to continuously adjust other offsets outside the data under this operating mode.Under-chassis bolt is unclamped, continued
The regulating bolt 20,23 of 2# fixed mounts 24 is screwed, while unscrews the regulating bolt 10,11 of 1# fixed mounts 7, observes eccentricity detecting hundred
Divide Table A 6, B12 pointer, when percentage list index is all moved to the position of needs, write down numerical value a4, b4, under-chassis bolt is tight
Gu now the difference a4-a2 or b4-b2 of motor stator offset are exactly required air gap eccentric centre amount.
Present invention additionally comprises：
1st, the regulating bolt is bolt of serration, improves precision.
2nd, sole plate and stator the under-chassis mounting surface should be smooth, impulse- free robustness, projection, pit phenomenon.
3rd, the fixed mount thickness has enough rigidity after should ensure that installation, is not in that Bending Deformation etc. is existing in regulation
As.
4th, the motor is that split type motor is that electric motor end cap and stator separate, and is not contacted directly, motor stator and end
The common three parts of lid, should be fixed with bolt respectively.There is certain distance between stator faces and end cap, can guarantee that breath detects dial gauge
Installation measurement is convenient.
5th, the motor stator under-chassis diameter of bolt should be less than the diameter of under-chassis through hole, ensure the under-chassis spiral shell in mobile sub-process
Bolt will not produce interference to stator.
6th, air gap regulation is not limited solely to above-mentioned described parallel eccentric situation, in addition to the oblique eccentric state of regulation.
Oblique eccentric adjusting can be also carried out in addition to the above-mentioned parallel offset being previously mentioned.Now regulating bolt 11,20 is one group, is adjusted
It is one group to save bolt 10,23, is coordinating observation eccentricity detecting dial gauge A6, B12 registration, by the central axis of stator 1 with turning
The center line of axle 3 is adjusted at an angle, realizes oblique eccentric state.
Claims (5)
1. a kind of eccentric measure device of motor gas-gap, including misalignment measurement component and air gap measurement assembly；It is characterized in that, eccentric
Measurement assembly includes fixed mount, support bar and eccentricity detecting dial gauge；Fixed mount is arranged in motor both sides, and motor passes through fixed mount
It is fixed on sole plate, measurement of air gap component is installed respectively on the axle that motor both ends are stretched out；
The fixed mount has a regulation screwed hole, and installation and adjustment bolt in hole, regulating bolt props up outer surface of motor；Fixed mount both ends
Support bar is separately installed with, support boom end clamping eccentricity detecting dial gauge, eccentricity detecting dial gauge is in horizontal positioned, bias inspection
The measurement head for surveying dial gauge props up motor under-chassis side；
The measurement of air gap component includes Magnetic gauge stand, universal adjustment bar and gap measurement dial gauge；Magnetic gauge stand is adsorbed in base
On plinth bottom plate, universal adjustment bar is installed on Magnetic gauge stand；The upper end clamping gap measurement dial gauge of universal adjustment bar, air gap inspection
The measurement head for surveying dial gauge props up motor shaft surface.
2. the eccentric measure device of a kind of motor gas-gap as claimed in claim 1, it is characterised in that the fixed mount length is less than
Motor stator under-chassis length, and in the middle part of the motor stator under-chassis that aligns.
A kind of 3. eccentric measure device of motor gas-gap as claimed in claim 1 or 2, it is characterised in that the support bar of fixed mount
Center and regulation screwed hole are centrally located on same straight line.
4. the eccentric measure device of a kind of motor gas-gap as claimed in claim 1 or 2, it is characterised in that spiral shell is adjusted in fixed mount
Pit is located proximate in the middle part of motor under-chassis.
5. the eccentric measure device of a kind of motor gas-gap as claimed in claim 3, it is characterised in that screwed hole is adjusted in fixed mount
It is located proximate in the middle part of motor under-chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710561281.1A CN107356187A (en) | 2017-07-11 | 2017-07-11 | A kind of eccentric measure device of motor gas-gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710561281.1A CN107356187A (en) | 2017-07-11 | 2017-07-11 | A kind of eccentric measure device of motor gas-gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107356187A true CN107356187A (en) | 2017-11-17 |
Family
ID=60292844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710561281.1A Pending CN107356187A (en) | 2017-07-11 | 2017-07-11 | A kind of eccentric measure device of motor gas-gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107356187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899632A (en) * | 2020-09-07 | 2020-11-06 | 中国人民解放军陆军工程大学 | Shaft measurement skill training device for teaching |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868028A (en) * | 1996-07-08 | 1999-02-09 | Sanki Industry Co. Ltd. | Band-like cloth twist detecting device and twist eliminating machine |
| CN200947027Y (en) * | 2006-08-16 | 2007-09-12 | 王强 | Generator stator/rotor air gap measuring gauge |
| CN204788144U (en) * | 2015-07-16 | 2015-11-18 | 嘉兴市新望机械制造有限公司 | Bent shaft detection device |
| CN105115393A (en) * | 2015-05-21 | 2015-12-02 | 国电大渡河流域水电开发有限公司龚嘴水力发电总厂 | Air gap measurement feeler gauge for rotor of water turbine generator set, and application method of air gap measurement feeler gauge |
| CN105135993A (en) * | 2015-08-27 | 2015-12-09 | 哈尔滨电机厂有限责任公司 | Turbine generator rotor assembly roundness measuring device |
-
2017
- 2017-07-11 CN CN201710561281.1A patent/CN107356187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868028A (en) * | 1996-07-08 | 1999-02-09 | Sanki Industry Co. Ltd. | Band-like cloth twist detecting device and twist eliminating machine |
| CN200947027Y (en) * | 2006-08-16 | 2007-09-12 | 王强 | Generator stator/rotor air gap measuring gauge |
| CN105115393A (en) * | 2015-05-21 | 2015-12-02 | 国电大渡河流域水电开发有限公司龚嘴水力发电总厂 | Air gap measurement feeler gauge for rotor of water turbine generator set, and application method of air gap measurement feeler gauge |
| CN204788144U (en) * | 2015-07-16 | 2015-11-18 | 嘉兴市新望机械制造有限公司 | Bent shaft detection device |
| CN105135993A (en) * | 2015-08-27 | 2015-12-09 | 哈尔滨电机厂有限责任公司 | Turbine generator rotor assembly roundness measuring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899632A (en) * | 2020-09-07 | 2020-11-06 | 中国人民解放军陆军工程大学 | Shaft measurement skill training device for teaching |
| CN111899632B (en) * | 2020-09-07 | 2024-05-03 | 中国人民解放军陆军工程大学 | Shaft measurement skill training device for teaching |
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Application publication date: 20171117 |