CN105758654B - Wheel rim On-line automatic correction deviation correcting device and method above and below dynamic balance test machine - Google Patents
Wheel rim On-line automatic correction deviation correcting device and method above and below dynamic balance test machine Download PDFInfo
- Publication number
- CN105758654B CN105758654B CN201610116370.0A CN201610116370A CN105758654B CN 105758654 B CN105758654 B CN 105758654B CN 201610116370 A CN201610116370 A CN 201610116370A CN 105758654 B CN105758654 B CN 105758654B
- Authority
- CN
- China
- Prior art keywords
- wheel rim
- mandrel
- counter
- zero
- main 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000012937 correction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000001939 inductive effect Effects 0.000 claims description 19
- 239000013307 optical fiber Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 238000000205 computational method Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
Abstract
The invention discloses wheel rim On-line automatic correction deviation correcting device and methods above and below a kind of dynamic balance test machine, include the test main shaft coordinated with tire lower hub and the mandrel coordinated with upper wheel hub, the test main shaft is driven by a servo motor, the servo motor is connected with rotary encoder, the mandrel is connected by a retaining mechanism with upper wheel rim lifting device, wheel rim circumferential direction standard on one set is installed on upper wheel rim lifting device and on upper wheel rim mandrel and stops zero-crossing detecting device, the zero-crossing detecting device, rotary encoder is connected with a counter, the counter is connected with the input terminal of a controller, the output end of the controller passes through a servo-control system control servomotor.Mechanical structure of the present invention is simple, is easily modified.Based on original mechanical structure, an optoelectronic switch and bar shaped sensor block only need to be increased.
Description
Technical field
The invention belongs to field of measuring technique, being related to a kind of dynamic balance test machine, wheel rim On-line automatic correction entangles up and down
Deflection device and method.
Background technology
The separation of system unbalance mass, and extraction algorithm are based on certain assumed condition：Upper and lower wheel rim does not misplace.
In Practical Project, since inflation pressure of tire, upper and lower wheel rim locking pressure, tire are lubricated with the concentric clamping of wheel rim, tire bead
The unstable effect of each factor such as effect, often relative dislocation between upper and lower wheel rim.Once system mode changes, system
The size and phase of unbalance mass, can change and then introduce measurement error therewith, cause previous amount demarcate influence coefficient and
System unbalance mass, is inaccurate.Currently used most of dynamic balancer is entangled without automatically correcting for upper and lower wheel rim
Deflection device and function generally require artificial manual correction after shutdown, and this generates certain angular deviations.Small part has wheel
The testing machine of rim calibration function is usually complicated, needs to carry out complicated Equivalent Calculation between rectifying plane, and precision is not very
It is ideal.A kind of real time monitoring of wheel rim relative position up and down and online correction calibration strategy and device are proposed thus.
Invention content
In order to solve the problems, such as that wheel rim is nonsynchronous up and down, disclose one kind to the dislocation of upper and lower wheel rim can exist the present invention
The device and method that line automatically corrects correction solve the problems, such as that upper and lower wheel rim is nonsynchronous, ensure the stability of measuring system, with
The system unbalance mass, and amount calibration for obtaining the dynamic balancer of high-precision and high-stability influence coefficient, improve test system
The accuracy of detection of itself.
The technical solution adopted in the present invention is：
A kind of dynamic balance test machine wheel rim On-line automatic correction deviation correcting device, including coaxial mounted upper wheel hub up and down
And lower hub, the lower hub connect a test main shaft, upper wheel hub connects a mandrel, and the test main shaft is by one
Servo motor drives, and the servo motor is connected with rotary encoder, and the mandrel passes through a retaining mechanism and upper wheel
Rim lifting gear is connected, it is characterised in that：Wheel rim week on one set is installed on upper wheel rim lifting device and on upper wheel rim mandrel
Stop zero-crossing detecting device to standard, the zero-crossing detecting device, rotary encoder are connected with a counter, the counting
Device is connected with the input terminal of a controller, and the output end of the controller controls servo electricity by a servo-control system
Machine.
The zero-crossing detecting device include be mounted on upper wheel rim lifting device on inductive switch and be mounted on upper wheel rim
The zero sensing chip on mandrel top, the zero sensing chip are led when retaining mechanism is in the unlocked state in mandrel and test
Its in the test process that axis rotates in a circumferential direction can pass through among inductive switch；
The inductive switch is the U-shaped inductive switch of optical fiber type.
The zero sensing chip and inductive switch are oppositely arranged above and below.
The controller is PLC controller.
The counter is two channel module of difference type, is directly installed in the main substrate slot of PLC controller.
The method for correcting error of wheel rim On-line automatic correction deviation correcting device, as follows above and below dynamic balance test machine,
Step 1 sets the respective circumferential zero degree reference position of upper and lower wheel rim, and records in two channels of counter two
The current count difference value of wheel rim, and calculate initial angle deviation；
Step 2 starts servo motor, proceeds by test, and counter monitors the position of upper and lower wheel rim in real time, remembers in real time
Count value in the upper and lower wheel rim corresponding channel of record；After system is stopped rotating, the actual angle deviation of two wheel hubs is calculated；
Step 3 judges whether the actual angle deviation of two wheel hubs has exceeded beyond allowable range value, when actual angle deviation
Without correction when less than or equal to allowable range value, when actual angle deviation is more than allowable range value, control servo-drive system passes through
The positive and negative rotation of control servomotor compensates dislocation angle.
The computational methods of initial angle are as follows in step 1：
The initial count value of upper wheel rim mandrel is in channel 1 in note counterLower wheel rim main shaft is initial in channel 2
Count value isThen initial count deviation isThe umber of pulse of every turn of high counter record is set as N,
Then initial angle deviation is
The computational methods of actual angle deviation, as follows in step 2：
Two channels of counter using it is lower test spindle encoder A pulses,APulse, B pulses andBPulse is as meter
Several trigger pulses；As long as upper wheel rim mandrel is synchronous with lower test main shaft, the counting deviation Δ N' reasons in two channels of counter
It answers invariable, and after detecting the saltus step of upper wheel rim zero signal, the data in channel 1 is preset as 0, that is, empty channel
Data in 1；When the skip signal of the encoder Z pulses detected, the data in channel 2 are emptied；When test main shaft stops
After rotation, the actual angle deviation for obtaining two wheel rims isDislocation angle is α '=α-α0。
Compared with prior art, it is an advantage of the invention that：
(1) mechanical structure is simple, is easily modified.Based on original mechanical structure, an optoelectronic switch and item only need to be increased
Shape sensor block.
(2) electrical control is convenient, and economy and durability is easily modified.A high speed counting module only need to be configured, is not influenced
The real-time of data collecting system and host computer the resolving system work of core link, does not increase additional resolving difficulty, to existing
The logical action change of field technological process is less.
(3) by online real-time automatic deviation correction, asynchronous, the angular deviation of the two between two wheel rims up and down is solved the problems, such as
It can be controlled within 0.2 degree, improves the stability of dynamic balancer system itself, reduce systematic error.
(4) it misplaces to upper and lower wheel rim and carries out online compensation, without correction of stopping, efficiency further increases.
Description of the drawings
Fig. 1 is the composed structure of upper and lower wheel rim On-line automatic correction deviation-rectifying system in the embodiment of the present invention.
Fig. 2 is wheel rim On-line automatic correction correction control flow up and down of the embodiment of the present invention.
In figure：1 time test main shaft, wheel rim mandrel, 3 retaining mechanisms, the U-shaped inductive switch of 4 optical fiber types, the inspection of 5 zero signals on 2
Survey sensing chip, wheel rim lifting device on 6, wheel rim, 8 tires, 9 times wheel rims, 10 servo motors, 11 encoders, 12 high-speed countings on 7
Device module, 13PLC control systems, 14 servo-control systems.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
It is the composed structure schematic diagram of the dynamic balance test machine of the embodiment of the present invention referring to Fig. 1, the dynamic balancing examination
The machine mechanical part of testing includes mainly：The U-shaped induction of lower test main shaft 1, upper wheel rim mandrel 2, upper wheel rim retaining mechanism 3, optical fiber type is opened
Pass 4, upper wheel rim circumferential direction standard are stopped zero signal detection sensing chip 5, upper wheel rim lifting device 6, upper wheel rim 7, lower wheel rim 9, main shaft and are watched
Take motor 10, spindle encoder (difference type) 11, high-speed counter module (two channel difference type QD62D) 12, PLC technology
Device PLC control system 13 and servo-control system 14.
Lower test main shaft 1 is driven by a servo motor 10, and the dynamic balancer mechanical part includes mainly：Lower survey
Examination main shaft 1, upper wheel rim mandrel 2, upper wheel rim retaining mechanism 3, the U-shaped inductive switch 4 of optical fiber type, upper wheel rim circumferential direction standard stop zero signal
Detect sensing chip 5, upper wheel rim lifting device 6, upper wheel rim 7, lower wheel rim 9, spindle servo electric machine 10,11 (difference of spindle encoder
Type), high-speed counter module 12 (two channel difference type QD62D), programmable controller PLC control system 13 and SERVO CONTROL
System 14.
Lower test main shaft 1 is driven by a servo motor 10, and the servo motor 10 is connected with rotary encoder 11, on
Wheel rim mandrel 2 is connected by a retaining mechanism 3 with upper wheel rim lifting device 6, on upper wheel rim lifting device 6 and upper wheel rim core
It it is equipped with one on axis puts on wheel rim circumferential direction standard and stop zero-crossing detecting device, zero-crossing detecting device includes being mounted on upper wheel rim lifting device
On the U-shaped inductive switch 4 of optical fiber type and the zero sensing chip 5 mounted on upper wheel rim mandrel top, zero signal detect sensing chip 5
When retaining mechanism 3 is in the unlocked state, it can be from inductive switch in the test process that mandrel and test main shaft rotate in a circumferential direction
Centre passes through；The U-shaped inductive switch 4 of optical fiber type, rotary encoder 11 are connected with a high-speed counter module 12, the height
Fast counter module 12 is connected with the input terminal of a PLC control system 13, and the output end of the PLC control system 13 passes through
One 14 control servomotor of servo-control system.
The present invention is in order to realize On-line automatic correction deviation-correcting function, on the basis of original dynamic balancer TT&C system
Increase the U-shaped inductive switch 4 of optical fiber type therein, upper wheel rim circumferential direction standard stops zero signal detection sensing chip 5 and high-speed counting
Device module 12；
(1) optical fiber type U-shaped inductive switch of the installation with high real-time and high measurement accuracy on upper wheel rim lifting device 6
4, upper 2 top of wheel rim mandrel installation zero signal detects sensing chip 5, and ensures under upper wheel rim retaining mechanism unlocked state, when
The sensing chip can be passed through from U-shaped 4 centre of inductive switch of optical fiber type in the test process that previous-next axis system rotates in a circumferential direction.Thus
Composition one puts on wheel rim circumferential direction standard and stops zero-crossing detecting device.
(2) according to original difference type encoder type, increase by one piece of high-speed counter module (two channel of difference type), directly
It connects in PLC main substrate slots.For example, the QD62D of Mitsubishi's brand.The high-speed counter module 12 of configuration is respectively to upper wheel
Rim mandrel 2 and lower 1 synchronous counting of test main shaft, when detecting that upper wheel rim circumferential direction standard stops the Z of zero pulse signal and encoder 11
When pulse signal, reset count value.
(3) after wheel rim circumferential direction standard stops dead-center position and lower test main shaft circumferential direction dead-center position in determination, pass through high counting number
Device module 12 and PLC control system 13 record the initial count difference of the two.
The pulse input mode of the high speed counting module selected in the specific embodiment of the invention has：It is single-phase 1 multiple, single-phase
2 multiple, the multiple of 2 phases 1, the multiple of the multiple of 2 phases 2 and 2 phases 4 are several.Therefore the A arteries and veins to encoder can be selected as needed
Punching, B pulses individually count or two count simultaneously.The multiple that 2 phases 4 are used in the present embodiment, so high-speed counter
Individual pen count value N is 4 times of encoder line number n, i.e. N=4n.
In the present embodiment, spindle encoder line number n is 1024, and high-speed counter individual pen count value N is 4096.
It is that the wheel rim up and down of the embodiment of the present invention automatically corrects the flow diagram of method for correcting error, specific works referring to Fig. 2
Process is as follows：
The first step sets the respective zero degree reference position of wheel rim up and down.Its operating procedure is：
(1) origin is arranged using the Z pulse reset modes of encoder 11 in the lower test main shaft 1 described in, and records current high
Numerical value of N in 12 channel 1 of fast counter module1It is 20.
(2) the U-shaped inductive switch 4 of optical fiber type and upper wheel rim circumferential direction standard are stopped zero signal detection sensing chip 5 to adjust
To the specific position of needs, the numerical value of N in 12 channel 2 of current high-speed counter module is recorded2It is 30.
(3) the initial angle deviation of wheel rim is up and down：
Second step monitors the position of wheel rim up and down in test process in real time, and carries out online compensation deviation to dislocation angle.
Its operating procedure is：
In test process, step-by-step counting of the high speed counting module to spindle encoder.After main shaft stops rotating, channel 1 (on
Wheel rim counting channel) and channel 2 (lower wheel rim counting channel) count value be N1=20 and N1=60, then up and down wheel rim reality
Angular deviation isPractical dislocation angle is α '=5.2734-0.8789=4.3945
(°).So control spindle servo electric machine reversely rotates 4.3945 °, online compensation is carried out to dislocation angle.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (6)
1. a kind of dynamic balance test machine wheel rim On-line automatic correction deviation correcting device up and down, including coaxial mounted upper wheel hub and
Lower hub, the lower hub connect a test main shaft, and upper wheel hub connects a mandrel, and the test main shaft is watched by one
Motor driving is taken, the servo motor is connected with rotary encoder, and the mandrel passes through a retaining mechanism and upper wheel rim
Lifting gear is connected, it is characterised in that：It is circumferential that wheel rim on one set is installed on upper wheel rim lifting device and on upper wheel rim mandrel
Standard stops zero-crossing detecting device, and the zero-crossing detecting device, rotary encoder are connected with a counter, the counter
It is connected with the input terminal of a controller, the output end of the controller controls servo electricity by a servo-control system
Machine；
The zero-crossing detecting device include be mounted on upper wheel rim lifting device on inductive switch and be mounted on upper wheel rim mandrel
The zero sensing chip on top, the zero sensing chip is when retaining mechanism is in the unlocked state, in mandrel and test main shaft week
Into the test process of rotation, it can be passed through among inductive switch.
The inductive switch is the U-shaped inductive switch of optical fiber type；The zero sensing chip and inductive switch are set relatively above and below
It sets.
2. wheel rim On-line automatic correction deviation correcting device, feature exist dynamic balance test machine as described in claim 1 up and down
In the controller is PLC controller.
3. wheel rim On-line automatic correction deviation correcting device, feature exist dynamic balance test machine as described in claim 1 up and down
In the counter is two channel module of difference type, is directly installed in the main substrate slot of PLC controller.
4. the correction side of wheel rim On-line automatic correction deviation correcting device above and below dynamic balance test machine as described in claim 1
Method, which is characterized in that it is as follows,
Step 1 sets the respective circumferential zero degree reference position of upper and lower wheel rim, and records two wheel rims in two channels of counter
Current count difference value, and calculate initial angle deviation；
Step 2 starts servo motor, proceeds by test, and counter monitors the position of upper and lower wheel rim in real time, records in real time
Count value in upper and lower wheel rim corresponding channel；After system is stopped rotating, the actual angle deviation of two wheel hubs is calculated；
Step 3 judges whether the actual angle deviation of two wheel hubs has exceeded beyond allowable range value, when actual angle deviation is less than
Without correction when equal to allowable range value, when actual angle deviation is more than allowable range value, servo-control system passes through control
The positive and negative rotation of servo motor compensates dislocation angle.
5. the correction side of wheel rim On-line automatic correction deviation correcting device above and below dynamic balance test machine as claimed in claim 4
Method, which is characterized in that the computational methods of initial angle deviation are as follows in step 1：
The initial count value of upper wheel rim mandrel is in channel 1 in note counterThe initial meter of lower wheel rim test main shaft in channel 2
Numerical value isThen initial count deviation isThe umber of pulse of every turn of record of setting high-speed counter is N, then
Initial angle deviation is
6. the correction side of wheel rim On-line automatic correction deviation correcting device above and below dynamic balance test machine as claimed in claim 5
Method, which is characterized in that the computational methods of actual angle deviation in step 2 are as follows：
Two channels of counter using lower wheel rim test spindle encoder A pulses,APulse, B pulses andBPulse is as meter
Several trigger pulses；As long as upper wheel rim mandrel is synchronous with lower wheel rim test main shaft, the counting deviation Δ in two channels of counter
N' ought to be invariable, and after detecting the saltus step of upper wheel rim zero signal, and the data in channel 1 are preset as 0, that is, are emptied
Data in channel 1；When the skip signal of the encoder Z pulses detected, the data in channel 2 are emptied；When test main shaft
After stopping rotating, the actual angle deviation for obtaining two wheel rims isDislocation angle be α '=
α-α0；N1For the actual count value of upper wheel rim mandrel in channel 1；N2The actual count value of main shaft is tested for lower wheel rim in channel 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610116370.0A CN105758654B (en) | 2016-03-02 | 2016-03-02 | Wheel rim On-line automatic correction deviation correcting device and method above and below dynamic balance test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610116370.0A CN105758654B (en) | 2016-03-02 | 2016-03-02 | Wheel rim On-line automatic correction deviation correcting device and method above and below dynamic balance test machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105758654A CN105758654A (en) | 2016-07-13 |
| CN105758654B true CN105758654B (en) | 2018-11-02 |
Family
ID=56332295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610116370.0A Active CN105758654B (en) | 2016-03-02 | 2016-03-02 | Wheel rim On-line automatic correction deviation correcting device and method above and below dynamic balance test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105758654B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642845B (en) * | 2016-08-24 | 2021-03-12 | 三菱重工机械系统株式会社 | Tire balance measuring device, tire balance measuring device evaluation method, tire balance measuring device calibration method, and tire balance measuring device calibration program |
| CN108709737B (en) * | 2018-04-04 | 2021-01-19 | 苏州优纳科技有限公司 | Wheel hub detects auxiliary device |
| CN110231183A (en) * | 2019-07-18 | 2019-09-13 | 软控股份有限公司 | A kind of tire positioning detection mechanism and tire position finding and detection method |
| CN113654814B (en) * | 2021-08-13 | 2022-04-19 | 滁州学院 | Detection mechanism for automobile hub |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003194672A (en) * | 2001-12-27 | 2003-07-09 | Bridgestone Corp | Measuring device for tire |
| CN2804837Y (en) * | 2004-04-23 | 2006-08-09 | 中国航空工业第一集团公司北京航空制造工程研究所 | Synchronous calibrating device for upper rim together with lower rim in tyre balancing testing machine |
| CN101900580B (en) * | 2009-12-11 | 2012-08-15 | 扬州市海力精密机械制造有限公司 | Encoder zero-crossing detecting device and detecting method |
| JP5422404B2 (en) * | 2010-01-12 | 2014-02-19 | 本田技研工業株式会社 | Method for arranging tires in automobiles |
| CN205374057U (en) * | 2016-03-02 | 2016-07-06 | 山东大学 | Online automatic correction of deviation correcting device of rim about tire dynamic balance test machine |
-
2016
- 2016-03-02 CN CN201610116370.0A patent/CN105758654B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105758654A (en) | 2016-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105758654B (en) | Wheel rim On-line automatic correction deviation correcting device and method above and below dynamic balance test machine | |
| CN104634993B (en) | A kind of motor steering speed detector and method | |
| CN104567956A (en) | Relative type rotary encoder and measurement method thereof | |
| CN201548664U (en) | Battery electroscope | |
| CN107655511A (en) | A kind of magnetic encoder calibrating installation and method | |
| CN204656970U (en) | A kind of defective work device for eliminating of being arranged on medicine bottle conveyer belt | |
| CN107013421B (en) | Method and system for measuring rotation speed of impeller of wind generating set | |
| CN101514683A (en) | Wind energy plant with pitch controller | |
| CN106247996B (en) | Belt wheel detection system based on laser ranging and stepping indexing | |
| CN106813584A (en) | Spiral bevel gear key parameter laser detection system and its detection method | |
| CN102628694A (en) | Control system and control method of single- axis turntable based on inertia device gyroscope and accelerometers | |
| CN203824579U (en) | Monitoring device for rotary machine | |
| CN205374057U (en) | Online automatic correction of deviation correcting device of rim about tire dynamic balance test machine | |
| CN108593955A (en) | For moment rotatation speed test method in the case of cyclic irregularity | |
| CN108759616A (en) | A kind of meter counter with compensation function | |
| CN206347973U (en) | A kind of accurate retarding machine transmission accuracy detection device | |
| CN102818579A (en) | Method for determining accuracy of angle measurement signal emitted by rotary transformer | |
| CN105277998A (en) | Method and system for detecting drum wheel negative-pressure hole blocking rate | |
| CN103439660A (en) | Method for testing rotation of motormeter stepper motor | |
| CN108828256A (en) | Contactless multi-channel synchronous tachometer of measuring | |
| CN209043236U (en) | A kind of main shaft concentricity testing device | |
| CN1174905C (en) | Method for controlling rove tension | |
| Boggarpu et al. | New learning algorithm for high-quality velocity measurement from low-cost optical encoders | |
| CN108254109B (en) | Torque detecting apparatus, method and system based on shaft phase difference | |
| CN106091950A (en) | A kind of rotator type bullet device for detecting length |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |