CN106153090A - Detecting apparatus for rotor position and rotary valve - Google Patents
Detecting apparatus for rotor position and rotary valve Download PDFInfo
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- CN106153090A CN106153090A CN201510185983.5A CN201510185983A CN106153090A CN 106153090 A CN106153090 A CN 106153090A CN 201510185983 A CN201510185983 A CN 201510185983A CN 106153090 A CN106153090 A CN 106153090A
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- rotor
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- location
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Abstract
The present invention relates to detecting apparatus for rotor position and rotary valve, it is achieved at low cost the device of absolute position of rotor of detection rotary valve.Position detecting device includes having position detection plate and the position detection part of multiple sensor.Position detection plate rotates in linkage with rotor, and has notch part at the circumference of its principal plane.Multiple positions on the swing-around trajectory of notch part are detected by sensor with or without notch part.Notch part and the sensor of position detection plate are designed to, and the integrated mode of the detection signal of each sensor when rotor is positioned in each position that delivery outlet is connected with input port is different from.The signal mode data of the position of the integrated mode of detection signal of each sensor and rotor now are maintained in signal mode maintaining part, based on each sensor detect signal and the absolute position of rotor is detected by signal mode data.
Description
Technical field
The present invention relates to have that input port and multiple delivery outlet being switched by the position of rotor be connected with input port is defeated
The rotary valve of outlet, and it is applicable to the detecting apparatus for rotor position of this rotary valve.
Background technology
Rotary valve is configured to have input port and multiple delivery outlet, and by controlling the position (rotation of rotor (rotary spool)
Indexing is put) switch the delivery outlet being connected with input port.The position control of rotor generally uses encoder to carry out (example
As, with reference to patent documentation 1.).
Have for carrying out the encoder of the position control of rotor: rotate in linkage with rotor, and set equably at circumference
There is the encoder plate of the rondelle of multiple slit；With the sensor that the slit of encoder plate is detected.Encoder plate revolves
When turning, it is detected by the sensors with the slit of the displacement respective amount of encoder.Therefore, by the slit that sensor is detected
Quantity counts, it is possible to carry out displacement detection or the location of rotor of rotor.
Prior art literature
Patent documentation
Patent documentation 1 Japanese Unexamined Patent Publication 10-252938 publication
Patent documentation 2 Japanese Unexamined Patent Publication 2004-125812 publication
Summary of the invention
Invention to solve the technical problem that
The counting of the position of the rotor encoder by starting from the original position of the reference position of the displacement as rotor carries out phase
Detect over the ground.But, in the method for the position relatively detecting rotor, there is the flase drop of original position or miscount
Words, can produce location and the problem of position detection that can not correctly carry out rotor.
Consider that the absolute type encoder using absolute position detection is (for example, referring to patent documentation 2.), at encoder plate
The pattern of absolute position detection is set, by being read this pattern, the absolute position of detection encoder plate by the sensor of optics
Put.But, relevant absolute type encoder price is higher, causes the raising of rotary valve cost.
Therefore, it is an object of the invention to the device that qurer realizes detecting the absolute position of the rotor of rotary valve.
The technological means of solution problem
The detecting apparatus for rotor position that the present invention relates to includes position detection part, signal mode maintaining part and position detection
Unit.Position detection part has: position detection plate, and it rotates in linkage with the rotor of rotary valve, and examines in this position
The circumference of the principal plane of survey plate has notch part, and rotary valve switches set multiple delivery outlets by the position of rotor
In the delivery outlet being connected with input port；And the presence or absence of the multiple positions detection notch part on the swing-around trajectory of notch part
Multiple sensors, the notch part of position detection plate and detect this notch part sensor be arranged to: rotor is positioned
The integrated mode of the detection signal of each sensor when each position that delivery outlet is connected with input port is different from.Signal mode
Formula maintaining part keeps the signal mode data of the position of the integrated mode of detection signal of each sensor and rotor now.Position
Putting detector unit and read the detection signal of each sensor, the signal mode data kept based on signal mode maintaining part are examined
Survey the absolute position of rotor.
In the present invention, as sensor with presence or absence of the notch part of detection position detection plate, as long as detection notch part has
Without, therefore there is no need to use high performance sensor, use photoelectric sensor at a low price.By relevant biography
The signal binary of sensor, such as, when notch part being detected, signal is set to<1>, and when being not detected by notch part, signal sets
For<0>.Therefore, the integrated mode of the detection signal of these sensors during n sensor of use has 2nKind, as rotor
Absolute position, it is possible to detection 2nIndividual position.
The rotary valve that the present invention relates to includes: port connection part, and it has input port, multiple delivery outlet and for switching
The rotor of the delivery outlet being connected with input port；Make the motor that rotor rotates；The detecting apparatus for rotor position of the present invention；With
And control portion, it is based on the rotor-position detected by detecting apparatus for rotor position, drives motor that rotor is positioned in
Assigned position.
The effect of invention
The detecting apparatus for rotor position of the present invention is by detecting many to the presence or absence of the notch part being located at position detection plate
The integrated mode of the detection signal of individual sensor, detects the absolute position of rotor, therefore, it is possible to use general
Optical pickocff is as sensor with presence or absence of the notch part of detection position detection plate.Therefore, unlike absolute position detection
Such with absolute type encoder, need high performance sensing that be located at encoder plate, that read absolute position detection pattern
Device, it is possible to realize the detection of the absolute position of rotor with structure at a low price.
The rotary valve of the present invention uses the detecting apparatus for rotor position of the present invention to detect the absolute position of rotor, accordingly, it is capable to
Enough high accuracy and qurer carry out the position control of rotor.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the outward appearance of the embodiment illustrating rotary valve.
Fig. 2 is the side view of the rotary valve of the structure of the position detection part illustrating this embodiment.
Fig. 3 is the axonometric chart within the position detection part of the composition of the position detection part illustrating this embodiment.
Fig. 4 A is position detection plate and the figure of photoelectric sensor of this position detection part seen from above.
Fig. 4 B is location plate and the figure of photoelectric sensor of this position detection part seen from above.
Fig. 5 is the block diagram controlling system briefly showing this embodiment.
Fig. 6 is the right of signal mode and the connectivity port now of each photoelectric sensor of the position detection illustrating this embodiment
The table of the example answered.
Fig. 7 is the flow chart of an example of the location action of the rotor illustrating this embodiment.
Fig. 8 is the side view of the rotary valve of the structure of other the embodiment illustrating rotary valve.
Fig. 9 is the plane graph of each position detection plate of this embodiment.
Figure 10 is signal mode and the connectivity port now of each photoelectric sensor of the position detection illustrating this embodiment
The table of a corresponding example.
Detailed description of the invention
In the detecting apparatus for rotor position of the present invention, detection plate in position can be one piece.So, it is possible to reduce position
The rotor putting detection device rotates axial size.
Alternatively, it is also possible to arrange polylith position detection plate.So, with the situation phase that position detection plate is a piece
Ratio, it is possible to easily design notch part so that each of multiple position of rotation, the combination of the detection signal of each sensor
Pattern is different from.
In the rotary valve of the present invention, in the case of the position detection part of detecting apparatus for rotor position has n sensor, it is possible to
2 are arranged in port connection partnIndividual delivery outlet.
The rotary valve of the present invention preferably has the encoder of the location of rotor.As relevant location encoder such as structure
Becoming, multiple positions with the equalization rotated in linkage with rotor and in the circumference of circumference have the location of slit
Use plate；And the location sensor that the slit of location plate detected, it is positioned in some delivery outlet at rotor
During the position being connected with input port, slit is detected by location sensor.
Hereinafter, use accompanying drawing that one embodiment of rotary valve is illustrated.
First, use Fig. 1 that the schematic configuration that the rotary valve of this embodiment is overall is illustrated.
The rotary valve of this embodiment has rotor drive division 2, rotor-position test section 4 (position detection part) and port even
Meet portion 6.Rotor-position test section 4 is arranged between rotor drive division 2 and port connection part 6.
Rotor drive division 2 has the motor 8 for the rotor being located at port connection part 6 carries out rotating driving.Stepping electricity
Machine 8 is fixed on motor fixing plate 9 by the connection of screw bolt and nut.
Port connection part 6 has the framework 11 of drum, and 8 with circumferential equivalent arrangements go out the outer peripheral face in framework 11
Mouth 10.Though can't see in FIG, the back side (face of the opposition side of the rotor drive division 2) central part in port connection part 6 sets
There is entrance 13 (with reference to Fig. 2.).Though not shown in figure, be provided with in the inside of port connection part 6 stator (fixture) and
Rotor (revolving part), is slided by rotor relative stator while rotating, and the groove in the face being located at stator side of rotor is sent out
Raw displacement, and so that the outlet 10 being connected with entrance is switched.The framework 11 of port connection part 6 and motor fixing plate 9
Connected by support column 30, and interfixed.
Rotor-position test section 4 is except having the location plate that the rotor with port connection part 6 rotates in linkage with rotor coaxial
22 and position detection with outside plate 26, also have: for the notch part of the circumference being located at location plate 22 is detected
The 1st sensor 14a, the 2nd sensor 14b and the 3rd sensor 14c；And for the week being located at position detection plate 26
The slit of edge carries out the location sensor 28 that detects, and (location sensor 28 not figure 1 illustrates.).1st passes
Sensor 14a, the 2nd sensor 14b and the 3rd sensor 14c are fixed on public sensor installation lid 12.Sensor is pacified
Dress lid 12 is fixed on motor fixing plate 9.Location sensor 28 is installed in framework 11 side of port connection part 6.
Using Fig. 2, Fig. 3, Fig. 4 A and Fig. 4 B, the internal structure to rotor-position test section 4 illustrates.It addition, be
Make the internal structure of rotor-position test section 4 it is readily seen that making support column 30 in Fig. 2 is transparent view, and omit the 1st biography
Sensor 14a and the diagram of the 3rd sensor 14c.
In rotor-position test section 4, the end of the drive shaft 16 of motor 8 and for the rotary shaft 18 making rotor rotate
End connected by connecting portion 20, enable rotor to rotate by motor 8.Location plate 22 and position detection plate
26 are arranged between port connection part 6 and connecting portion 20 in parallel to each other.Rotary shaft 18 runs through location plate 22 and position detection
With the principal plane central part of plate 26.
Location plate 22 is fixed on the rest pad 21 of the cylindrical shape rotated together with rotary shaft 18.In location with plate 22
And it is separated with distance piece 24 between position detection plate 26.One end of distance piece 24 by the connection of screw bolt and nut relative to
Location plate 22 is fixed, and the other end is fixed relative to position detection plate 26 by the connection of screw bolt and nut.By
This, location plate 22 and position detection plate 26 rotate in linkage with rotor.
As shown in Figure 4 B, location plate 22 is provided with 8 slit 22a equably in its circumference circumference.In location with plate 22
Side is provided with the location sensor 28 for detecting this slit 22a.Location sensor 28 be have mutually relative to luminescence
Element and the photoelectric sensor of photo detector, be inserted with the periphery of location plate 22 between light-emitting component and photo detector
Portion.
At slit 22a not in location with time on the position of sensor 28, carry out the light of self-emission device and be positioned with plate 22 shading,
Photo detector can't detect the light of self-emission device.When slit 22a forwards the position of location sensor 28 to, carry out self-luminous
The light of element incides photo detector, and photo detector detection carrys out the light of self-emission device.The location detection letter of sensor 28
Number it is binarized, detection signal when being not detected by slit 22a is set to signal<0>, when slit 22a will be detected
Detection signal is set to signal<1>.Location plate 22 and location sensor 28 constitute location encoder, and this location is compiled
Code device is for carrying out the location of some delivery outlet 10 rotor such with the state that input port 13 is connected.
The position of slit 22a and location sensor 28 is adjusted to, when slit 22a forwards the position of location sensor 28 to
The state being connected with input port 13 for some delivery outlet 10.Therefore, when any one delivery outlet 10 is connected with input port 13,
The signal of the binarization of location sensor 28 is<1>, when any one delivery outlet 10 does not all have to be connected with input port 13, and should
Signal is<0>.Being located through of rotor monitors the signal of alignment sensor 28 while drive stepping motor 8 is carried out,
The signal making the binarization of location sensor 28 is<1>.
As shown in Figure 4 A, position detection plate 26 is provided with multiple notch part 26a at its circumference.At position detection plate 26
Side has the 1st sensor 14a, the 2nd sensor 14b and the 3rd sensor for detecting this notch part 26a
14c.Each the 1st sensor 14a, the 2nd sensor 14b and the 3rd sensor 14c use as sensor 28 with location, are tools
Have mutually relative to light-emitting component and the photoelectric sensor of photo detector, between light-emitting component and photo detector, be inserted into position
Put the circumference of detection plate 26.
Each the 1st sensor 14a, the 2nd sensor 14b and the 3rd sensor 14c by photo detector whether detect from
The light of light-emitting component, detects in the position of each sensor 14a～14c with or without notch part 26a.Each sensor 14a's～14c
Detection signal is binarized, and the detection signal of the sensor being not detected by notch part 26a is signal<0>, detects scarce
The detection signal of the sensor of oral area 26a is signal<1>.
1st sensor 14a, position and the position detection notch part 26a of plate 26 of the 2nd sensor 14b and the 3rd sensor 14c
Width and quantity be designed to, it is each that rotor is positioned in when location sensor 28 detects 8 positions of slit 22a
The pattern of the combination of the detection signal (signal<0>or<1>) of sensor 14a～14c is different from.Fig. 6 is to illustrate each sensing
The integrated mode detecting signal of device 14a～14c and the outlet 10 (connection in table being connected with entrance 13 when each pattern
Port) the example of signal mode data of corresponding relation.
Control the control portion 32 of action of this rotary valve (with reference to Fig. 5.) keep relevant signal mode data in advance, based on
Outlet 10 that this signal mode Data Detection is connected with entrance 13, the absolute position i.e. detecting rotor.Sensor 14a～
14c, position detection plate 26 and control portion 32 constitute the detecting apparatus for rotor position of the absolute position for detecting rotor.
Fig. 5 illustrates the control system of this embodiment.
Motor 8 is controlled by control portion 32.Control portion 32 can be come by special computer or general PC
Realize.Control portion 32 is provided with position detection unit 32a, positioning unit 32b and signal mode maintaining part 32c.Position is detected
Unit 32a and positioning unit 32b is by being performed to be stored in control portion 32 by the arithmetic unit of the CPU etc. being located at control portion 32
Program and obtain function.Signal mode maintaining part 32c can be by being located at the HDD's (hard disk drive) etc. in control portion 32
One region of storage device realizes.
As shown in Figure 6, signal mode maintaining part 32c maintain the integrated mode of the signal representing each sensor 14a～14c with
The signal mode data of the corresponding relation of connectivity port now.
Position detection unit 32a is configured to use the 1st sensor 14a, the 2nd sensor 14b and the detection of the 3rd sensor 14c
Signal and the signal mode data being maintained at signal mode maintaining part 32c (are connected with entrance 13 to the absolute position detecting rotor
The sequence number of outlet 10).
Positioning unit 32b is configured to signal based on location sensor 28 and the rotor that detected by position detection unit 32a
Absolute position, controls motor and positions rotor so that desired outlet 10 is connected with entrance 13.
One example of the location action of rotor is illustrated by the flow chart using Fig. 7.
Determine the target location (sequence number of the delivery outlet being connected with input port) that rotor should position.Read the 1st sensor
14a, the 2nd sensor 14b and the signal of the 3rd sensor 14c, according to the integrated mode of its signal, protect based on signal mode
Hold the signal mode data of portion 32c, the current location of detection rotor.
When the current location of rotor is different from target location, drive stepping motor 8 (Fig. 1 reference.) until location passes
Sensor 28 detects the slit 22a of location plate 22.When location sensor 28 detects slit 22a, according to the 1st now
Sensor 14a, the current location of signal detection rotor of the 2nd sensor 14b and the 3rd sensor 14c, and confirm present bit
Put the most consistent with target location.Repeatedly perform this action, if the current location of rotor is consistent with target location, terminate
The location of rotor.
In the above-described embodiment, it is configured to 3 sensor 14a～14c of configuration around 1 block of position detection plate 26,
The absolute position of the integrated mode detection rotor according to its signal but it also may use detection plate in polylith position to detect and turn
The absolute position of son.Use Fig. 8 that the embodiment using 3 blocks of position detection plates 36,37 and 38 is illustrated.
The rotor-position test section 4a of this embodiment have 1 block of location plate 22 and 3 blocks of position detection plates 36,37 and
38.Location plate 22 is located at port connection part 6 side, is fixed on the rest pad of the cylindrical shape rotated together with rotary shaft 18
On 21.Position detection plate 36 is connected with location plate 22 across distance piece 34c.Position detection with plate 37 across distance piece
34b is connected with position detection plate 36.Position detection plate 38 is connected with position detection plate 37 across distance piece 34a.By
This, 4 blocks of plates 22,36,37 and 38 and rotor coaxial rotating in linkage.
The flat shape of position detection plate 38 is the shape shown in Fig. 9 (A), the equalization in the circumference of its circumference
4 at position there is the notch part 38a that width is 45 ° of sizes of the anglec of rotation.The flat shape of position detection plate 37 is Fig. 9
(B) shape shown in, at impartial 2 in the circumference of its circumference, position has width is 90 ° of sizes of the anglec of rotation
Notch part 37a.The flat shape of position detection plate 36 is the shape shown in Fig. 9 (C), has rotation at its circumference
The notch part 36a of the 180 ° of sizes in angle.
1st sensor 14a is arranged on the position that the notch part 38a of the circumference to position detection plate 38 detects.2nd
Sensor 14b is arranged on the position that the notch part 37a of the circumference to position detection plate 37 detects.3rd sensor
14c is arranged on the position that the notch part 36a of the circumference to position detection plate 36 detects.
In this embodiment, the 1st sensor 14a, the 2nd sensor 14b and the 3rd sensor 14c be configured to longitudinally (with
The direction that rotary shaft 38 is parallel) form a line, but also there is no need necessarily to be configured to form a line.1st sensor 14a,
The position of the 2nd sensor 14b and the 3rd sensor 14c and the position detection position relationship (phase place of plate 36,37 and 38
Difference) it is designed to, rotor is positioned in each sensor when location sensor 28 detects 8 positions of slit 22a
The integrated mode of the detection signal (signal<0>or<1>) of 14a～14c is different from.Figure 10 be represent each sensor 14a～
The integrated mode of the detection signal of 14c is connected the letter of the corresponding relation routing up mouth (connectivity port) with under each pattern and entrance
One example of number mode data.
Use the 1st sensor 14a, the 2nd sensor 14b, the 3rd sensor 14c and location sensor 28 signal turn
The localization method of son is as the embodiment using Fig. 1 to Fig. 7 to illustrate.
The explanation of symbol
2 rotor drive divisions
4,4a rotor-position test section
6 port connection part
8 motors
9 motor fixing plates
10 delivery outlets
The framework of 11 port connection part
12 sensor installation lids
14a the 1st sensor
14b the 2nd sensor
14c the 3rd sensor
16 drive shafts
18 rotary shafts
20 connecting portions
21 rest pads
22 location plates
22a slit
24,34a, 34b, 34c distance piece
26,36,37,38 position detection plate
26a, 36a, 37a, 38a notch part
38 location sensors
30 support columns
32 control portions
32a position detection unit
32b positioning unit
32c signal mode maintaining part.
Claims (6)
1. a detecting apparatus for rotor position, it is characterised in that including:
Position detection part, described position detection part has: position detection plate, and it revolves in linkage with the rotor of rotary valve
Turning, and have notch part at the circumference of this position detection plate, described rotary valve switches institute by the position of described rotor
The delivery outlet being connected with input port in the multiple delivery outlets arranged；And multiple on the swing-around trajectory of described notch part
Multiple sensors with presence or absence of described notch part, the described notch part of described position detection plate and described sensing are detected in position
Device is arranged to: each sensor when described rotor is positioned in each position that described delivery outlet is connected with described input port
The integrated mode of detection signal is different from；
Signal mode maintaining part, it keeps the integrated mode of detection signal of described each sensor and described rotor now
The signal mode data of position；And
Position detection unit, it reads the detection signal of described each sensor, is kept based on described signal mode maintaining part
Described signal mode data detect the absolute position of described rotor.
2. detecting apparatus for rotor position as claimed in claim 1, it is characterised in that
Described position detection plate is one piece.
3. detecting apparatus for rotor position as claimed in claim 1, it is characterised in that
Described position detection plate is equipped with polylith.
4. a rotary valve, it is characterised in that including:
Port connection part, its have input port, multiple delivery outlet and for switching be connected with input port delivery outlet turn
Son；
Make the motor that described rotor rotates；
The detecting apparatus for rotor position described in any one in claims 1 to 3；And
Control portion, it is based on the rotor-position detected by described detecting apparatus for rotor position, drives described motor to make institute
State rotor and be positioned in assigned position.
5. rotary valve as claimed in claim 4, it is characterised in that
The position detection part of described detecting apparatus for rotor position has n sensor, and wherein n is positive integer,
Described port connection part has 2nIndividual delivery outlet.
6. rotary valve as claimed in claim 5, it is characterised in that
Also including location encoder, described location encoder is configured to, and has: location plate, itself and described rotor
Rotate in linkage, and the impartial multiple positions in the circumference of circumference have slit；And location sensor, its
The described slit of described location plate is detected,
When described rotor is positioned in the position that some described delivery outlet is connected with described input port, described location passes
Described slit is detected by sensor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014221339A JP6459397B2 (en) | 2014-10-30 | 2014-10-30 | Rotor position detection device and rotary valve |
| JP2014-221339 | 2014-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106153090A true CN106153090A (en) | 2016-11-23 |
| CN106153090B CN106153090B (en) | 2020-03-24 |
Family
ID=56018272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510185983.5A Active CN106153090B (en) | 2014-10-30 | 2015-04-17 | Rotor position detection device and rotary valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6459397B2 (en) |
| CN (1) | CN106153090B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110462266A (en) * | 2017-03-30 | 2019-11-15 | 盛美半导体设备（上海）有限公司 | Exhaust apparatus |
| CN110741252A (en) * | 2017-09-01 | 2020-01-31 | 株式会社岛津制作所 | Switching valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2017959B1 (en) * | 2016-12-08 | 2018-06-19 | Illumina Inc | Cartridge assembly |
| MY194951A (en) | 2016-10-14 | 2022-12-28 | Illumina Inc | Cartridge assembly |
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| Publication number | Publication date |
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| JP2016090266A (en) | 2016-05-23 |
| CN106153090B (en) | 2020-03-24 |
| JP6459397B2 (en) | 2019-01-30 |
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