CN106545494A - Planetary rotor pump - Google Patents
Planetary rotor pump Download PDFInfo
- Publication number
- CN106545494A CN106545494A CN201510598909.6A CN201510598909A CN106545494A CN 106545494 A CN106545494 A CN 106545494A CN 201510598909 A CN201510598909 A CN 201510598909A CN 106545494 A CN106545494 A CN 106545494A
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- China
- Prior art keywords
- knuckle
- planet
- rotor
- servomotor
- planetary
- 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.)
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Abstract
The invention discloses a kind of planetary rotor pump, including mair motor, knuckle-tooth worm screw, planet rotor, encoder, servomotor and control circuit；Knuckle-tooth worm screw, one end are connected with the output shaft of mair motor by first shaft coupling, and the other end is connected with encoder by second shaft coupling；In the middle part of knuckle-tooth worm screw, knuckle-tooth face is engaged with the planetary wheel mechanical of planet rotor；Servomotor is connected with the main shaft of planet rotor；Encoder is used for the rotating speed and angle position for measuring mair motor；Control circuit is according to mair motor rotating speed and angle position signal, calculate output servomotor follows speed and position signalling, control servomotor is rotated by main shaft drives planet rotor, makes the planetary gear on planet rotor be engaged synchronous occlusion successively with the knuckle-tooth of knuckle-tooth worm screw.The planetary rotor pump of the present invention, frame for movement are simple, install, adjust and safeguard all more convenient, can reduce the stress abrasion of the planetary gear knuckle-tooth of planet rotor, extend the life-span of planetary rotor pump.
Description
Technical field
The present invention relates to drive technology, more particularly to planetary rotor pump.
Background technology
Also known as colloid pump, lobe pump, three blade pump, general-purpose delivery pump etc., impeller pump belongs to displacement pump to impeller pump.It is to borrow
The periodicity for helping the conveying units of the multiple fixed volumes in working chamber is converted the purpose that reaches conveyance fluid.Motor
Mechanical energy be converted into the pressure energy of conveyance fluid by pump, the flow of pump be solely dependent upon working chamber volume changing value with
And its change frequency within the unit interval, and (in theory) is unrelated with discharge pressure；Impeller pump is real in the course of the work
It is the rotor by a pair of synchronous rotaries on border, rotor is driven by a pair of synchromesh gears in casing, and rotor is in major-minor
Under the drive of axle, opposite direction rotation is synchronized, makes the volume of pump change, so as to constitute higher vacuum and row
Bleed off pressure power.The rotor (number of teeth is 2-4) that impeller pump is rotated by two synchronous backwards produces suction in entrance in rotary course
Power (vacuum), so as to suck material to be conveyed, rotor chamber is separated into several little spaces by two rotors, and is pressed
The order operating of a → b → c → d.When operating to position a, medium only in I rooms, is full of；During to position b, in B rooms
Enclose certain media；During to position C, medium in A rooms, is also enclosed；During to position d, A rooms B rooms and II Room phase
Logical, medium is transported to discharging opening.So move in circles, medium (material) is continually transferred out.Rotor
Pump is particularly suitable for sanitation-grade medium and corrosivity, the conveying of high viscosity medium.
Planetary rotor pump is used primarily in the highly concentrated steady high-pressure delivery containing granule and fibrous solids slurry, conveys high-concentration thick liquid
Material typically can produce violent wear effects to the pump housing.Particularly, when worm screw knuckle-tooth face and planetary gear knuckle-tooth face have directly
During physical contact, the wear effects of generation are just bigger, and this can directly affect the service life of planet rotor.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of planetary rotor pump, and frame for movement is simple, installs, adjusts and ties up
Shield is all more convenient, can reduce the stress abrasion of the planetary gear knuckle-tooth of planet rotor, extend the life-span of planet rotor.
For solution above-mentioned technical problem, the planetary rotor pump that the present invention is provided, which includes mair motor, knuckle-tooth worm screw, planet
Rotor, encoder, servomotor and control circuit；
The planet rotor, including planet carrier, main shaft, multiple planetary gears, multiple planet wheel spindles；
The planet carrier, it is in the form of annular discs；
The main shaft, perpendicular to planet carrier, and the center of fixed planet carrier；
Each planet wheel spindle, perpendicular to planet carrier, be evenly distributed on planetary wheel carrier and center to planet carrier distance
It is equal；
Each planetary gear, is separately fixed on each planet wheel spindle；
The knuckle-tooth worm screw, one end are connected with the output shaft of mair motor by first shaft coupling, and the other end passes through the second shaft coupling
Device is connected with the encoder；
The knuckle-tooth worm screw, middle part knuckle-tooth face are engaged with the planetary wheel mechanical of planet rotor；
The servomotor, is connected with the main shaft of planet rotor；
The encoder, for measuring the rotating speed and angle position of mair motor, and by the mair motor rotating speed for measuring and turns
Angle position signal is transferred to the control circuit；
The control circuit, according to mair motor rotating speed and angle position signal, calculate output servomotor follow speed and
Position signalling, is controlled the servomotor and is rotated by planet rotor described in the main shaft drives, make the row on planet rotor
Star-wheel is engaged synchronous occlusion successively with the knuckle-tooth of knuckle-tooth worm screw.
Preferably, there is gap in the knuckle-tooth face of the knuckle-tooth worm screw between the planetary gear of mechanical snap.
Preferably, the planetary rotor pump, also including servo-driver, signal transition card；
The control circuit, using programmable logic controller (PLC)；
The servo-driver, for driving servomotor, the control speed motion for allowing servomotor to export by which, and it is defeated
Go out long line style and feed back signal to programmable logic controller (PLC)；
The long line style feedback signal that the servo-driver is exported is converted into Programmable logical controller by the signal transition card
The open collector signal that device can be received.
Preferably, the servomotor, is connected with the main shaft of planet rotor by reductor.
Preferably, the mair motor, is alternating current generator.
Preferably, speed Vf that follows of servomotor is：
The rotating speed of Vf=Vm/ (K1*K2), Vm for mair motor, K1 are knuckle-tooth worm screw and the speed reducing ratio of planet rotor, and K2 is
The speed reducing ratio of servomotor side reductor；
Position deviation e that follows of servomotor is：
The angle position of e=Xm/ (K1*K2)-y, Xm for mair motor, y carry out single order for the angle position value of servomotor
Numerical value after differential calculation.
The planetary rotor pump of the present invention, when the output shaft rotation of mair motor, drives knuckle-tooth worm screw and encoder to move together,
Encoder is measured with regard to the rotating speed and angle position of mair motor, and the mair motor rotating speed for measuring and angle position are believed
Number be transferred to control circuit, control circuit according to mair motor rotating speed and angle position signal, calculate output servomotor with
With speed and position signalling, control servomotor and rotated by main shaft drives planet rotor.The planetary rotor pump of the present invention,
Frame for movement is simple, installs, adjusts and safeguard all more convenient, the fortune of the accurate real-time tracking knuckle-tooth worm screw of servomotor energy
It is dynamic, drive planet rotor synchronous axial system, it is ensured that between when knuckle-tooth worm screw and planet turn gear motion, maintain gap, reduce
The stress abrasion of the planetary gear knuckle-tooth of planet rotor, extends the life-span of planetary rotor pump.
Description of the drawings
In order to be illustrated more clearly that technical scheme, the accompanying drawing to using required for the present invention makees simple Jie below
Continue, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill
For personnel, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is planet rotor structural representation；
Fig. 2 is the frame for movement schematic diagram of one embodiment of planetary rotor pump of the present invention；
Fig. 3 is AA ' the sections machinery structural representation of Fig. 2；
Fig. 4 is the transmission principle figure of one embodiment of planetary rotor pump of the present invention；
Fig. 5 is the control structure schematic diagram of one embodiment of planetary rotor pump of the present invention；
Fig. 6 is the Mathematical model control block diagram of one embodiment of planetary rotor pump of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, clear, complete description is carried out to the technical scheme in the present invention, it is clear that described
Embodiment is a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ability
All other embodiment that domain those of ordinary skill is obtained on the premise of creative work is not made, belongs to this
The scope of bright protection.
Embodiment one
Planetary rotor pump, as shown in Figure 2, Figure 3, Figure 4, including mair motor 2, knuckle-tooth worm screw 3, planet rotor 1,
Encoder 4, servomotor 5 and control circuit；
The planet rotor 1, as shown in figure 1, including planet carrier 11, main shaft 12, multiple planetary gears 14, multiple planets
Wheel shaft 13；
The planet carrier 11, it is in the form of annular discs；
The main shaft 12, perpendicular to planet carrier 11, and the center of fixed planet carrier 11；
Each planet wheel spindle 13, perpendicular to planet carrier 11, is evenly distributed on planetary wheel carrier 11 and to planet carrier 11
Center distance it is equal；
Each planetary gear 14, is separately fixed on each planet wheel spindle 13；
The knuckle-tooth worm screw 3, one end are connected with the output shaft of mair motor 2 by first shaft coupling 81, and the other end is by the
Two shaft couplings 82 are connected with the encoder 4；
14 mechanical snap of planetary gear of the knuckle-tooth worm screw 3, middle part knuckle-tooth face and planet rotor 1；
The servomotor 5, is connected with the main shaft 12 of planet rotor 1；
The encoder 4, for measuring the rotating speed and angle position of mair motor 2, and by the mair motor rotating speed for measuring
With angle position signal transmission to the control circuit；
The control circuit, according to mair motor rotating speed and angle position signal, calculate output servomotor 5 follows speed
And position signalling, control the servomotor 5 and drive the planet rotor 1 to rotate by the main shaft 12, make planet
Planetary gear 14 on rotor 1 is engaged synchronous occlusion successively with the knuckle-tooth of knuckle-tooth worm screw 3.
Preferably, there is gap in the knuckle-tooth face in the middle part of the knuckle-tooth worm screw 3 between the planetary gear 14 of mechanical snap.
The planetary rotor pump of embodiment one, when the output shaft rotation of mair motor, drives knuckle-tooth worm screw and encoder one to start shipment
Dynamic, encoder is measured with regard to the rotating speed and angle position of mair motor, and by the mair motor rotating speed for measuring and corner position
Confidence number is transferred to control circuit, and control circuit calculates output servomotor according to mair motor rotating speed and angle position signal
Follow speed and position signalling, control servomotor is rotated by main shaft drives planet rotor.The planet of embodiment one turns
Sub- pump, frame for movement are simple, install, adjust and safeguard all more convenient, and servomotor can accurate real-time tracking knuckle-tooth snail
The motion of bar, drives planet rotor synchronous axial system, it is ensured that maintain gap between when knuckle-tooth worm screw and planetary gear gear motion,
The stress abrasion of the planetary gear knuckle-tooth of planet rotor is reduced, the life-span of planetary rotor pump is extended.
Embodiment two
Based on the planetary rotor pump of embodiment one, as shown in figure 5, also including servo-driver, signal transition card；
The control circuit, using PLC (programmable logic controller (PLC))；
The servo-driver, for driving servomotor, the control speed motion for allowing servomotor to export by which, and it is defeated
Go out long line style and feed back signal to PLC.The signal transition card, the long line style feedback signal that the servo-driver is exported
It is converted into the open collector signal that PLC can be received.
Preferably, the servomotor 5, is connected with the main shaft 12 of planet rotor 1 by reductor 6.
Preferably, the mair motor 2, is alternating current generator.Mair motor requires that power is larger, typically in more than 15kw, is
It is cost-effective, can select common alternating current generator.In practice, cost is not such as minded, want to reach preferably control
Effect processed, mair motor can select frequency conversion motor or servomotor.
The planetary rotor pump of embodiment two, control circuit adopt PLC, and flexible design, hardware cost are low.Long line style feedback
Signal is a kind of high-speed pulse form that servo-driver feeds back to upper-level control system, and common small PLC can only be received
The high-speed pulse signal of open collector form, can not receive the pulse signal of long line style.The planet rotor of embodiment two
Pump, by signal transition card, the long line style feedback signal that servo-driver is exported is converted into common low price small PLC can
With open collector signal (the open collector signal, that is, signal takes from the current collection of audion or Darlington transistor for receiving
Pole, when audion ends, colelctor electrode resistance over the ground is high impedance, such as has a pull-up resistor to connect high level on colelctor electrode,
Now be output as high level. when audion saturation, be now output as low level), can further reduces cost, improve
Cost performance.
Embodiment three
Based on the planetary rotor pump of embodiment one, as shown in fig. 6, speed Vf that follows of servomotor is：
The rotating speed of Vf=Vm/ (K1*K2), Vm for mair motor, K1 are knuckle-tooth worm screw and the speed reducing ratio of planet rotor, and K2 is
The speed reducing ratio of servomotor side reductor；
Position deviation e that follows of servomotor is：
The angle position of e=Xm/ (K1*K2)-y, Xm for mair motor, y carry out single order for the angle position value of servomotor
Numerical value after differential calculation.
As common alternating current generator speed of service fluctuation is big, servomotor is followed in order to quickly track the speed of alternating current generator
And position, and control, in the adjustable range of mechanical clearance, to need to set up effective Motion Controlling Model.
PID control is made up of ratio, integration, differential regulator parallel connection.Three kinds of actuators are combined performance
Respective advantage is reaching preferable regulating effect.
Proportional control action, the effect of proportional are the amplitudes for proportionally amplifying deviation.Proportional controller exists static inclined
Difference, makes system stability after completing to adjust in the new stable state for deviateing set-point.In addition, Proportional coefficient K p is also to affect ratio
The factor that example is adjusted.Kp increases, and can accelerate the response speed of system, reduces static system deviation, improves control accuracy.
But Kp crosses conference causes larger overshoot, cause system unstable.Kp reduces and can reduce the overshoot of system, but meeting
Reduce system fading margin precision.
Autocatalytic reset action, in integration control, the output of controller is integrated into proportionate relationship with input error signal.
As long as deviation is there are between controlled variable and set-point, the output signal numerical value of actuator changes.When deviation is believed
After number disappearing, the output signal of actuator stops change.The advantage of integral controller can be the product for avoiding static deviation
It is raw.But have the disadvantage easily to produce over control.
Derivation regulating action, differential is adjusted to be adjusted according to the pace of change of deviation, so its speed of action is fast
In proportional controller.Adjustment effect that is this advanced and strengthening can reduce the dynamic deviation of controlled variable.
As the stability bandwidth of alternating current generator operation is very big, simple parallel connection PID is adjusted and can not be followed in place.Embodiment three
Planetary rotor pump, add first derivative element, the angle position value to following servomotor carries out differential, makes servo electricity
The deviation that follows of machine is controlled in scope of design, and the speed for controlling alternating current generator is frequently lifted, and can avoid alternating current generator
The system oscillation that causes of velocity perturbation, improve the dynamic property of system.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all spirit in the present invention
Within principle, any modification, equivalent substitution and improvements done etc. are should be included within the scope of protection of the invention.
Claims (6)
1. a kind of planetary rotor pump, it is characterised in that including mair motor, knuckle-tooth worm screw, planet rotor, encoder, watch
Take motor and control circuit；
The planet rotor, including planet carrier, main shaft, multiple planetary gears, multiple planet wheel spindles；
The planet carrier, it is in the form of annular discs；
The main shaft, perpendicular to planet carrier, and the center of fixed planet carrier；
Each planet wheel spindle, perpendicular to planet carrier, be evenly distributed on planetary wheel carrier and center to planet carrier distance
It is equal；
Each planetary gear, is separately fixed on each planet wheel spindle；
The knuckle-tooth worm screw, one end are connected with the output shaft of mair motor by first shaft coupling, and the other end passes through the second shaft coupling
Device is connected with the encoder；
The knuckle-tooth worm screw, middle part knuckle-tooth face are engaged with the planetary wheel mechanical of planet rotor；
The servomotor, is connected with the main shaft of planet rotor；
The encoder, for measuring the rotating speed and angle position of mair motor, and by the mair motor rotating speed for measuring and turns
Angle position signal is transferred to the control circuit；
The control circuit, according to mair motor rotating speed and angle position signal, calculate output servomotor follow speed and
Position signalling, is controlled the servomotor and is rotated by planet rotor described in the main shaft drives, make the row on planet rotor
Star-wheel is engaged synchronous occlusion successively with the knuckle-tooth of knuckle-tooth worm screw.
2. planetary rotor pump according to claim 1, it is characterised in that
There is gap in the knuckle-tooth face of the knuckle-tooth worm screw between the planetary gear of mechanical snap.
3. planetary rotor pump according to claim 1, it is characterised in that
The planetary rotor pump, also including servo-driver, signal transition card；
The control circuit, using programmable logic controller (PLC)；
The servo-driver, for driving servomotor, the control speed motion for allowing servomotor to export by which, and it is defeated
Go out long line style and feed back signal to programmable logic controller (PLC)；
The long line style feedback signal that the servo-driver is exported is converted into Programmable logical controller by the signal transition card
The open collector signal that device can be received.
4. planetary rotor pump according to claim 1, it is characterised in that
The servomotor, is connected with the main shaft of planet rotor by reductor.
5. planetary rotor pump according to claim 1, it is characterised in that
The mair motor, is alternating current generator.
6. planetary rotor pump according to claim 1, it is characterised in that
Speed Vf that follows of servomotor is：
The rotating speed of Vf=Vm/ (K1*K2), Vm for mair motor, K1 are knuckle-tooth worm screw and the speed reducing ratio of planet rotor, and K2 is
The speed reducing ratio of servomotor side reductor；
Position deviation e that follows of servomotor is：
The angle position of e=Xm/ (K1*K2)-y, Xm for mair motor, y carry out single order for the angle position value of servomotor
Numerical value after differential calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598909.6A CN106545494B (en) | 2015-09-18 | 2015-09-18 | planetary rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598909.6A CN106545494B (en) | 2015-09-18 | 2015-09-18 | planetary rotor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106545494A true CN106545494A (en) | 2017-03-29 |
| CN106545494B CN106545494B (en) | 2018-11-20 |
Family
ID=58362329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510598909.6A Expired - Fee Related CN106545494B (en) | 2015-09-18 | 2015-09-18 | planetary rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545494B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838382A (en) * | 2019-04-12 | 2019-06-04 | 阜新金昊空压机有限公司 | A kind of huge discharge volume Rotary Compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2197485Y (en) * | 1993-12-25 | 1995-05-17 | 大连理工大学 | Worm pump with a ring and a gear |
| CN102155405A (en) * | 2011-05-06 | 2011-08-17 | 沈阳工业大学 | Intelligent revolving speed control system and control method for submersible oil screw pump |
| CN102364104A (en) * | 2011-10-29 | 2012-02-29 | 董孝连 | Round-tooth worm type slurry pump |
| CN103486026A (en) * | 2013-08-26 | 2014-01-01 | 薛世忠 | Screw pump safety interlock control system and control method thereof |
| CN205001177U (en) * | 2015-09-18 | 2016-01-27 | 上海浩蕊峰自动化设备有限公司 | Planetary rotor pump |
-
2015
- 2015-09-18 CN CN201510598909.6A patent/CN106545494B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2197485Y (en) * | 1993-12-25 | 1995-05-17 | 大连理工大学 | Worm pump with a ring and a gear |
| CN102155405A (en) * | 2011-05-06 | 2011-08-17 | 沈阳工业大学 | Intelligent revolving speed control system and control method for submersible oil screw pump |
| CN102364104A (en) * | 2011-10-29 | 2012-02-29 | 董孝连 | Round-tooth worm type slurry pump |
| CN103486026A (en) * | 2013-08-26 | 2014-01-01 | 薛世忠 | Screw pump safety interlock control system and control method thereof |
| CN205001177U (en) * | 2015-09-18 | 2016-01-27 | 上海浩蕊峰自动化设备有限公司 | Planetary rotor pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838382A (en) * | 2019-04-12 | 2019-06-04 | 阜新金昊空压机有限公司 | A kind of huge discharge volume Rotary Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545494B (en) | 2018-11-20 |
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Granted publication date: 20181120 Termination date: 20200918 |