CN208888268U - A kind of utilization is mounted on the measuring device of lenticular lenses quick obtaining revolving speed on machine shaft - Google Patents
A kind of utilization is mounted on the measuring device of lenticular lenses quick obtaining revolving speed on machine shaft Download PDFInfo
- Publication number
- CN208888268U CN208888268U CN201821585003.6U CN201821585003U CN208888268U CN 208888268 U CN208888268 U CN 208888268U CN 201821585003 U CN201821585003 U CN 201821585003U CN 208888268 U CN208888268 U CN 208888268U
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- CN
- China
- Prior art keywords
- lenticular lenses
- support plate
- photoelectric tube
- revolving speed
- circular base
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Abstract
The utility model discloses the measuring devices that a kind of utilization is mounted on lenticular lenses quick obtaining revolving speed on machine shaft, including fixed part, lenticular lenses and photoelectric tube, fixed part includes circular base plate, it is connected fixed disk and support plate, it is connected fixed disk to be arranged in circular base plate, support plate setting is in linking fixed disk, and circular base plate, concentric circle holes are set in linking fixed disk and support plate, lenticular lenses include lenticular lenses ontology and connecting shaft, one end of the connecting shaft is fixed in the circular base plate of fixed part, the other end is connect with lenticular lenses ontology, photoelectric tube is arranged in the support plate of fixed part, photoelectric tube is integrally in n shape, two connection boss up and down are arranged close to support plate side in it, connecting hole is set on connection boss, the notch of photoelectric tube is covered at the extension tooth socket of lenticular lenses；The utility model proposes the measuring devices that a kind of utilization more quickly accurately predicted is mounted on lenticular lenses quick obtaining revolving speed on machine shaft.
Description
Technical field
The utility model relates to the measuring devices that a kind of utilization is mounted on lenticular lenses quick obtaining revolving speed on machine shaft.
Background technique
Incremental encoder is mostly to add the principle of photoelectric tube using lenticular lenses at present, either finished product or discrete,
All there are problems that the processing and installation accuracy of this lenticular lenses, it is such as fast in some controls for needing rapid response speed
Fast measurement of power field, if not with by the revolving speed that calculates of circle but use the revolving speed that actually each burst length calculates come
If control, certain fluctuation is had, and with the revolving speed calculated by circle, certain hysteresis quality is had, is unfavorable for
The accuracy of fast PID control and motor characteristic curve data.
Utility model content
In view of the above technical defects, motor is mounted on the utility model proposes a kind of utilization more quickly accurately predicted to turn
The measuring device of lenticular lenses quick obtaining revolving speed on axis.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows:
A kind of utilization is mounted on the measuring device of lenticular lenses quick obtaining revolving speed on machine shaft, including fixed part, grating
Piece and photoelectric tube, fixed part include circular base plate, linking fixed disk and support plate, and linking fixed disk is arranged in circular base plate,
Concentric circle holes, lenticular lenses are arranged in linking fixed disk, and in circular base plate, linking fixed disk and support plate in support plate setting
Including lenticular lenses ontology and connecting shaft, one end of the connecting shaft is fixed in the circular base plate of fixed part, the other end and lenticular lenses ontology
Connection, photoelectric tube are arranged in the support plate of fixed part, and photoelectric tube is integrally in n shape, close to the setting of support plate side two up and down
Boss is connected, connects and connecting hole is set on boss, the notch of photoelectric tube is covered at the extension tooth socket of lenticular lenses.
The utility model has the beneficial effects that: if the utility model calculates the practical stability revolving speed of current spindle,
We can calculate current stabilized (steady-state) speed when receiving any one burst length in this way, without equal gratings
Piece has turned a circle Shi Caineng and has calculated stable revolving speed.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the part-structure figure of the utility model；
Fig. 3 is that the lenticular lenses of the utility model change picture.
It is identified in figure: fixed part 1, lenticular lenses 2 and photoelectric tube 3.
Specific embodiment
The utility model is described further below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, a kind of utilization is mounted on the measuring system of 2 quick obtaining revolving speed of lenticular lenses on machine shaft,
Including fixed part 1, lenticular lenses 2 and photoelectric tube 3.Fixed part 1 includes circular base plate, linking fixed disk and support plate, and linking is fixed
Disk is arranged in circular base plate, and support plate is arranged in linking fixed disk, and in circular base plate, linking fixed disk and support plate
Concentric circle holes are set, facilitates good fixed grating piece 2, lasting apron space is provided.Lenticular lenses 2 include lenticular lenses ontology
And connecting shaft, one end of the connecting shaft are fixed in the circular base plate of fixed part 1, the other end is connect with lenticular lenses ontology.The connection side
Formula uses bolt, fixes convenient for adjusting, convenient for disassembly and assembly, and maintenance cost is low.Photoelectric tube 3 is arranged in the support plate of fixed part 1,
Whole photoelectric tube 3 is in n shape, and two connection boss up and down are arranged close to support plate side, connects and connecting hole, photoelectricity is arranged on boss
The notch of pipe 3 is covered at the extension tooth socket of lenticular lenses 2, so as to quickly detect the duration of runs for the part that tooth socket does not block,
And one section goes wrong and also maintains easily and replace.
It operates processing and installation question as shown in Figure 1, due to lenticular lenses 2 and shaft, does not ensure that installation
The consistency in the gap between the tooth socket of concentricity and lenticular lenses 2 causes measurement point photoelectric tube 3 in each tooth socket of lenticular lenses 2
The locating radius of measurement is inconsistent, i.e. the spacing distance of tooth socket is inconsistent, in this way under same revolving speed, is calculated by each tooth socket
Shaft revolving speed out has certain deviation, can not represent the actual speed of current spindle, at this moment must be 2 turns lenticular lenses
The dynamic measured data come out of a circle, the i.e. interval time of all tooth sockets of lenticular lenses 2 all measure, the revolving speed calculated
It is only the stabilized (steady-state) speed of current spindle, to be stablized and precise rotation in this way, will be slow, at least to turn a circle ability
It calculates, is unfavorable for quick control of motor speed etc..
By taking the tooth socket number tooth of n=60 of the lenticular lenses 2 as an example, when motor uniform rotation, using MCU by photoelectric tube 3 every
The time that a tooth socket turns over photoelectric tube 3 measures, respectively with T1, T2, T3 ... T60 indicate, in this way rotate one enclose it is total when
Between
T=T1+T2+T3+ ...+T60 formula (1)
The then revolving speed of current spindle
* 60 rpm formula (2) of S=(1/T)
The revolving speed that current each tooth socket calculates
Sn=(1/ (60*Tn)) * 60 rpm wherein n from 1 ~ 60 formula (3)
In actual measurement, since the processing gap of each tooth socket of lenticular lenses 2 is not exclusively the same, or it is mounted on shaft
On concentricity issues, the Sn and S that formula (1) and formula (2) calculate herein have certain error, in this way if it is desired to
Formula (3) quickly obtains revolving speed, and stability will be far short of what is expected, is unfavorable for subsequent some controls.
One of tooth socket file the lenticular lenses 2 is a little big gap file, as shown in Fig. 2, working as lenticular lenses 2 at the uniform velocity
When rotation, our MCU can detecte to a pulse width time and be significantly greater than other pulse width times, when we are the maximum pulse width
Between be labeled as No. 1, behind number sequentially arrange, the arteries and veins time of each label available in this way is respectively T1 ' T2 ' T3 '
T4 ' ... T59 ' T60 ' can calculate the revolving speed of each tooth socket respectively S1 S2 S3 S4 according to above-mentioned formula (3)
... S59 S60, while using above-mentioned formula (2), we calculate current stabilized (steady-state) speed S, can calculate in this way
The error compensation coefficient of each tooth socket:
Kn=S/Sn wherein n from 1 ~ 60 formula (4)
It is an inherent characteristic caused by this penalty coefficient Kn is processing and installation accuracy as practical lenticular lenses 2.This
Sample, in actual speed measurement, when we once measure the pulse width time such as Tn of a tooth socket label, we can be by upper
It states formula (3) and calculates the revolving speed Sn calculated by the tooth socket data, and pass through following compensation formula
S=Kn * Sn formula (5)
The practical stability revolving speed of current spindle is calculated, we can be when receiving any one burst length just in this way
Current stabilized (steady-state) speed can be calculated, without etc. 2 turns of lenticular lenses it is complete one circle Shi Caineng calculate stable revolving speed.To only
It will be by changing one of slot form, to obtain the label to each tooth socket.There is label that can calculate by formula
The penalty coefficient of each tooth socket out.Stable revolving speed can be quickly calculated by penalty coefficient, in order to more accurate reality
When control, such as PID closed-loop control.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
Art personnel can also make several improvements and modifications without departing from the concept of the premise utility, these improvements and modifications
Also it should be regarded as in scope of protection of the utility model.
Claims (1)
1. the measuring device that a kind of utilization is mounted on lenticular lenses quick obtaining revolving speed on machine shaft, which is characterized in that including solid
Determine portion, lenticular lenses and photoelectric tube, fixed part includes circular base plate, linking fixed disk and support plate, and linking fixed disk is arranged in circle
On shape chassis, concentric circles is arranged in linking fixed disk, and in circular base plate, linking fixed disk and support plate in support plate setting
Hole, lenticular lenses include lenticular lenses ontology and connecting shaft, and one end of the connecting shaft is fixed in the circular base plate of fixed part, the other end and light
The connection of grid ontology, photoelectric tube are arranged in the support plate of fixed part, and photoelectric tube is integrally in n shape, are arranged close to support plate side
Upper and lower two connection boss connect and connecting hole are arranged on boss, and the notch of photoelectric tube is covered at the extension tooth socket of lenticular lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821585003.6U CN208888268U (en) | 2018-09-28 | 2018-09-28 | A kind of utilization is mounted on the measuring device of lenticular lenses quick obtaining revolving speed on machine shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821585003.6U CN208888268U (en) | 2018-09-28 | 2018-09-28 | A kind of utilization is mounted on the measuring device of lenticular lenses quick obtaining revolving speed on machine shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208888268U true CN208888268U (en) | 2019-05-21 |
Family
ID=66514268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821585003.6U Expired - Fee Related CN208888268U (en) | 2018-09-28 | 2018-09-28 | A kind of utilization is mounted on the measuring device of lenticular lenses quick obtaining revolving speed on machine shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208888268U (en) |
-
2018
- 2018-09-28 CN CN201821585003.6U patent/CN208888268U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20210928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |