CN110223579A - One kind to drag DC servo motor control simulated teaching platform - Google Patents
One kind to drag DC servo motor control simulated teaching platform Download PDFInfo
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- CN110223579A CN110223579A CN201910562724.8A CN201910562724A CN110223579A CN 110223579 A CN110223579 A CN 110223579A CN 201910562724 A CN201910562724 A CN 201910562724A CN 110223579 A CN110223579 A CN 110223579A
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- 238000004088 simulation Methods 0.000 claims abstract description 51
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 19
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 238000007789 sealing Methods 0.000 claims description 41
- 238000001816 cooling Methods 0.000 claims description 32
- 230000001681 protective effect Effects 0.000 claims description 19
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 10
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- 238000012546 transfer Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
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- 238000002474 experimental method Methods 0.000 description 3
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- 238000005520 cutting process Methods 0.000 description 2
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- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
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- 230000003247 decreasing effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- KNVAYBMMCPLDOZ-UHFFFAOYSA-N propan-2-yl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OC(C)C KNVAYBMMCPLDOZ-UHFFFAOYSA-N 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
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Abstract
The invention discloses one kind to drag DC servo motor control simulated teaching platform, comprising: PC machine is equipped with algorithm simulation software, host computer monitoring software；Real-time simulation controller, the arithmetic analysis for being simulated according to algorithm simulation software are the corresponding control signal of each entity device and parameter；DC driven control cabinet, for driving servo motor to run；To motor group is dragged, servo motor is installed, to motor is dragged, servo motor is driven by DC driven control cabinet；It is detected to the encoder for dragging output shaft rotational angle to dragging to be equipped in motor, encoder is connect with the digital signal pinboard module communication in DC driven control cabinet, the signal end of digital signal switching plate module and the signal end communication connection of real-time simulation controller；Digital IO and the analog acquisition output of DC driven control cabinet inside PLC are connected to the digital mouth of real-time simulation controller and simulation mouth, PC machine are connected with real-time simulation controller by ethernet communication.
Description
Technical field
The present invention relates to dragging DC servo motor control technology, more particularly to one kind to dragging DC servo motor control
Simulated teaching platform.
Background technique
In recent years, with the rapid development application of electric machines control technology and automatic control research, traditional teaching aid experiment porch
It is difficult to cater to the requirement of student's modern education, there is exploration, intuitive, scientific research, rich, open novel teaching aid
Platform becomes colleges and universities in the urgent need for establishing novel laboratory, and at the same time, traditional education is in teaching-scientific research-application
It is upper that there is a degree of disconnection, therefore the platform with teaching and scientific research application is gradually attract attention.As most
Common and basic control equipment, to dragging, the revolving speed of motor controls DC servo, position control relates to the basic of principle of automatic control
Conceptual understanding, motor control theory, motion control etc., have certain realistic meaning, thus for electric to DC servo is dragged
The teaching platform of machine control platform receives more and more attention.In addition, being mentioned to reduce the time cost that teaching is expanded and studied
High testing efficiency, developing a kind of have good compatibility and scalability, provides and quickly and easily develop environment, integrate a variety of grind
Study carefully environment and safe and reliable just seems particularly necessary to dragging DC servo motor control to emulate teaching and research platform.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide one kind to dragging direct current to watch
Take motor control simulated teaching platform, with it is good compatibility and scalability, can provide quickly and easily develop environment and
The characteristics such as integration height, safe and reliable.
To achieve the above object, the present invention provides one kind to drag DC servo motor control simulated teaching platform, comprising:
PC machine, is equipped with algorithm simulation software, host computer monitoring software, and the algorithm simulation software carries out algorithm mould for the end PC
Quasi- emulation, the host computer monitoring software are used to realize monitoring information or input control information by picture；
Real-time simulation controller, the arithmetic analysis for being simulated according to algorithm simulation software are the corresponding control of each entity device
Signal and parameter；
DC driven control cabinet, for driving servo motor to run；
To motor group is dragged, servo motor is installed, to motor is dragged, servo motor is driven by DC driven control cabinet；To dragging electricity
It is equipped in machine and detects it to the encoder for dragging output shaft rotational angle, encoder and the digital signal in DC driven control cabinet
The connection of pinboard module communication, the signal end of digital signal switching plate module and the signal end communication of real-time simulation controller connect
It connects；
Digital IO and the analog acquisition output of DC driven control cabinet inside PLC are connected to the number of real-time simulation controller
Word mouth and simulation mouth, PC machine are connected with real-time simulation controller by ethernet communication.
Preferably, DC driven control cabinet include 48V DC driving power, 24V DC control power supply, motor driving plate,
Terminal block and digital Signals Transfer Board module, signal end and the real-time simulation controller of the PLC built in DC driven control cabinet
Signal end communication connection.
Preferably, PC machine, for while also being shown by display to the software for dragging DC servo motor teaching and research
The basic electric parameter of two motors of interface display platform, operating condition；Real-time simulation controller, for running the simulation of PC machine foundation
Model is attached by Ethernet and PC machine, to exchange the information and control instruction of acquisition；Real-time simulation controller is through believing
Number line is attached with DC driven control cabinet, to exchange control signal, motor position information, motor enable signal；To dragging
Servo motor in motor group is connected via power cable with DC driven control cabinet, carries out power supply drive by DC driven control cabinet
It is dynamic；To dragging the encoder of motor to be connected via signal cable with PLC signal end, to provide encoder for DC driven control cabinet
Signal.
It preferably, further include protective module, the protective module includes pedestal, and pedestal is fixed on to the rack for dragging motor group
On, and it is fixed with protective cover on the pedestal, is inner cover inside protective cover, inner cover covers on servo motor, to dragging outside motor；
The pedestal and inner cover corresponding position are fixed with support tube, seal gas ring are set on the support tube, and on the inside of support tube
Bottom is connected to with exhaust pipe one end, and the exhaust pipe other end picks out inner cover；
It is connected to respectively with sealing air inlet pipe, sealing exhaust pipe one end inside the seal gas ring, the sealing air inlet pipe, sealing row
The part that the tracheae other end is located at piston two sides with switching inner cavity respectively is connected to, and the switching of switching valve is arranged in the switching inner cavity
In shell.
Preferably, protective cover is made of transparent, fire prevention, heat-barrier material.
Preferably, flared channels, lower speaker hole are provided on the piston, the upper flared channels, lower speaker hole mutually interconnect
Lead to and run through piston, and be fixed with gag lever post on piston one end, the switching inner cavity and gag lever post corresponding position are fixed with limit convex
It rises, and there is the first interval between the gag lever post and retention bead；
The switching inner cavity is connected to one end with sealing air inlet pipe and is also connected to respectively with the first air inlet pipe, second air inlet pipe one end, the
One air inlet pipe, the second air inlet pipe other end are connected to total inlet pipe one end respectively, and total inlet pipe is connected to the exhaust outlet of air pump, gas
Pump is for pumping outer gas stream in total inlet pipe；Pressure spring, the work are further sleeved between the gag lever post and retention bead
Plug and switching bore seal, can slide axially assembly.
Preferably, the switching inner cavity is connected on one end with sealing exhaust pipe is fixed with position-limiting drum, is provided on position-limiting drum
Perforative to cross air drain, switching inner cavity is provided with position-limiting drum one end and is also connected to gas nozzle；
When original state, upper flared channels are connected to blast pipe one end, the blast pipe other end enter in inner cover and with just internally
Cover top；The piston is bonded or is adjacent to position-limiting drum end face under the elastic force effect of pressure spring, and gas nozzle is in close state；Piston
Assembly is not bonded with the first air inlet pipe, the second air inlet pipe and switching inner cavity connectivity part；The sealing function that lower flared channels pass through piston
In sealing state.
Preferably, the upper flared channels to sealing air inlet pipe and switch the minimum range L1 of inner cavity connectivity part greater than lower loudspeaker
The minimum range L2 of the first air inlet pipe of slot distance and switching inner cavity connectivity part.
It preferably, further include water-cooling system, the water-cooling system, including water cooling box, the water cooling box include cabinet, cabinet
Inside is interior case, is equipped with the water cooling tube of spiral setting inside interior case, water cooling tube both ends be pierced by respectively cabinet and respectively with air inlet
Connector, the connection of exhaust joint one end, the total inlet pipe are truncated into two sections and are connected on inlet suction port respectively, on exhaust joint；
The interior box top is connected to water inlet pipe, bottom is connected to drainpipe, and the water inlet pipe is connected to the exit of cooler,
The import of the access port of cooler and the outlet of water pump, water pump is connected to the water in water tank, and water tank inside is gone back and drainpipe
Connection.
Preferably, heat conducting pipe is installed in interior case, heat conducting pipe is open at one end and open end and orifice plate assembly are fixed, orifice plate
On be provided with several perforative intercommunicating pores, and intercommunicating pore will be connected to inside interior case and heat conducting pipe, be also equipped in the heat conducting pipe
Driving plug, is equipped with memory spring between driving plug, orifice plate, memory spring both ends are fixed with driving plug, orifice plate assembly respectively；
Driving plug and heat conducting pipe inner sealing, can axis move up assembly, and drive plug and the assembly of frizzen one end is fixed triggers
The bar other end is pierced by the triggering end face after heat conducting pipe with microswitch, the incoming end of the microswitch and picking out for constant-current source
End is conductively connected, and the incoming end and power supply of constant-current source are conductively connected, and constant-current source is used to power supply being converted into the straight of burning voltage
Galvanic electricity；
The control terminal conductive connection for picking out end and contactor of the microswitch, the incoming end and power supply conduction of contactor connect
Connect, pick out the power connection end conductive connection of end and cooler.
Preferably, the memory spring shortens at 30 DEG C or less, extends at 50-60 DEG C.
Preferably, the outlet of the air inlet of air pump and solenoid directional control valve, the first import of solenoid directional control valve and outside
Atmosphere, the second import are connected to exhaust pipe, the control terminal of solenoid directional control valve and the signal end communication of real-time simulation controller
It connects, temperature sensor, the signal end of temperature sensor and the signal end communication connection of PLC, and temperature is installed in the inner cover
Degree sensor is for detecting temperature inside inner cover；Solenoid directional control valve makes the first import, the second import and outlet for selecting one,
When original state, the first import of solenoid directional control valve and the outlet of solenoid directional control valve.
The beneficial effects of the present invention are:
1) present invention has good open source property, compatibility and scalability, not only provides transparent to modernize scientific research as guiding
Underlying model is controlled, and a large amount of interface and matched pinboard are provided, user is facilitated to carry out the Expansion development in later period and grind
Study carefully.
2) present invention, which has, quickly and easily develops environment, using real-time simulation controller, may be implemented and MATLAB/
The seamless connection of Simulink may help to the quick sense of reality principle of user by rapid modeling and update, adjust ginseng in real time
User is helped to explore, and storing data is very convenient, large amount of complex operational capability carries out innovation for user and provides
Basis.
3) bottom of the present invention is open has scientific research, while can integrate a variety of operating statuses, because without changing hardware
The quick exploitation and switching that can carry out required experiment under a variety of teaching and two kinds of occasions of scientific research, are suitable for a variety of teaching and section
The requirement ground.
4) there is the present invention simple complete safeguard protection system (to carry out Auto-matching control by parameters, prevent
It is unexpected) and reliable running environment, improve impart knowledge to students and scientific research is rich, practicability, high efficiency while, can also ensure student
With the safety of scientific research personnel.
Detailed description of the invention
Fig. 1 is composition block diagram of the invention.
Fig. 2 is of the invention to dragging motor group structural schematic diagram.
Fig. 3 is of the invention to dragging motor group structural schematic diagram (in overlook direction).
Fig. 4 is switch valve structure schematic diagram of the invention.
Fig. 5 is water cooling box structural schematic diagram of the invention.
Fig. 6 is enlarged drawing at F1 in Fig. 5.
Fig. 7 is that water-cooling system of the invention constitutes block diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Embodiment one
It is a kind of to dragging DC servo motor to control simulated teaching platform referring to Fig. 1, comprising:
PC machine, is equipped with algorithm simulation software, host computer monitoring software, and the algorithm simulation software carries out algorithm mould for the end PC
Quasi- to emulate, algorithm simulation software uses MATLAB and/or Simulink in the present embodiment.The host computer monitoring software is for leading to
Cross picture realize monitoring information or input control information (for show various measuring signals, M signal and under send instructions, store
The upper computer software interface of data), the figure and numerical value plug-in unit of variable and parameter when comprising display real-time application operation,
Input control, storage experimental data and the function that mat format can be switched to of setting in real time and change operation algorithm parameter, additionally
Software module abundant (software interface such as docked with various softwares) is provided, to cope with a variety of different situations.
Real-time simulation controller, the arithmetic analysis for being simulated according to algorithm simulation software are that each entity device is corresponding
Control signal and parameter, in the present embodiment real-time simulation controller select control module based on dSPACE real-time emulation system or
Directly adopt dSPACE real-time emulation system.In the present embodiment, there is real-time simulation controller the input/output more than 100 to connect
Mouthful, wherein including simulation input/output, numeral input/output, CAN, RS485, Ethernet and increment type/hall position coding
Device interface.
DC driven control cabinet includes 48V DC driving power, 24V DC control electricity for driving servo motor to run
Source, motor driving plate (motor driver), terminal block (patch panel) and digital Signals Transfer Board module (data collecting card), directly
Flowing drive control box can the signal such as the encoder of acquisition platform, switch state, PWM driving；DC driven control cabinet can play
Effect to signal interference isolation, the signal end communication connection of signal end and real-time simulation controller control real-time simulation
Device plays a protective role, and drives servo motor.
To motor group is dragged, servo motor is installed, to motor is dragged, servo motor is driven by DC driven control cabinet；It is right
It drags to be equipped in motor and detects it to the encoder for dragging output shaft rotational angle, encoder and the number in DC driven control cabinet
The connection of Signals Transfer Board module communication, the signal end of digital signal switching plate module and the signal end communication of real-time simulation controller
Connection, so that the signal of encoder output is inputted real-time simulation controller.
Digital IO and the analog acquisition output of DC driven control cabinet are connected to the number of real-time simulation controller
Mouth and simulation mouth, PC machine are connected with real-time simulation controller by ethernet communication, and the real-time exchange of data is carried out.To dragging motor
The prior art can be directly used in the wiring and installation of group.
PC machine in the present embodiment, for while also passing through display to the software for dragging DC servo motor teaching and research
The basic electric parameter of two motors of display interface display platform, operating condition；Real-time simulation controller, for running PC machine foundation
Simulation model is attached by Ethernet and PC machine, to exchange the information and control instruction of acquisition；Real-time simulation controller
It is attached through signal wire and DC driven control cabinet, to exchange control signal, motor position information, motor enable signal；
It is connected via power cable with DC driven control cabinet to the servo motor dragged in motor group, electricity is carried out by DC driven control cabinet
Source driving；To dragging the incremental encoder of motor to be connected via signal cable with DC driven control cabinet, to for DC driven
Control cabinet provides code device signal；Connected to the output shaft for dragging motor, servo motor by connecting shaft.
When realizing to DC servo motor control simulated teaching or research is dragged, complete to be based on MATLAB first on the end PC
Off-line simulation, theoretical study is completed based on MATLAB, obtains ideal simulation architecture.Then, on this basis, delete imitative
The models such as electric machine assembly, driving assembly, the power module used when true, while being connect in real time according to what real-time simulation controller provided
Mouth mold block and its pin, which define, actually enters/output port to change model fracture to connect, complete on real-time simulation controller
At the compiling and automatic load of program, the suitable instrument at host computer monitoring software interface, observation or dragging variable is called or designed
Table/display control, finally run real-time simulation controller, connection DC driven control cabinet, to drag motor group, real-time simulation control
Device, PC machine, so that it may be rapidly completed for the connection to DC servo motor control simulated teaching or research platform is dragged.
Carrying out practically process: firstly, by the end PC program setting, running the program of setting in real-time simulation controller,
Real-time simulation controller carries out instruction to servo motor and issues, and change directive size observes encoder curvilinear motion, completes open loop
Test, similarly, by the end PC program setting, runs the program of setting, real-time simulation controller pair in real-time simulation controller
DC driven control cabinet carries out electric current, revolving speed or the position that instruction is given, keeps its output specified, change current-order or revolving speed,
Place object can show situation of change by host computer monitoring software, so that it may realize algorithm used about to dragging motor
The measurement and calibration of the parameters such as position control, revolving speed Control performance standard, the algorithm can voluntarily be researched and developed by system user of service
Or use the prior art.
By the way that the simulation algorithm at the end PC is arranged, the parameter of real-time simulation controller is changed, control DC driven control cabinet is defeated
Electric current out；Utilize the visualization interface realtime power detection of PC machine, two driving current signals of record and feedback motor encoder
Signal, realize for entire platform safe and stable operation, accomplish the promotion for imparting knowledge to students and researching and developing efficiency.
Embodiment two
- Fig. 4 referring to fig. 2, in actual use, due to servo motor 420 and to dragging motor 430 at runtime, quantity of heat production ratio
Larger and exposed servo output axis 421, to dragging output shaft 431 to rotate, if be not added to protect, there is biggish safety
Hidden danger, in this regard, applicant increases protective module.
The protective module 200, the pedestal 110 including entire platform, pedestal 110 are fixed on to the rack for dragging motor group
On, and protective cover 210 is fixed on the pedestal 110, protective cover 210 is made of transparent, fire prevention, heat-barrier material, and is protected
210 inside of cover is inner cover 211, and inner cover 211 covers on servo motor 420, to dragging outside motor 430；
The pedestal 110 is fixed with support tube 120 with 211 corresponding position of inner cover, is set with seal gas ring on the support tube 120,
And 120 inside bottom of support tube is connected to with 342 one end of exhaust pipe, 342 other end of exhaust pipe picks out inner cover 211, thus will be interior
The discharge of cover internal gas flow.
It is connected to respectively with sealing air inlet pipe 331,332 one end of sealing exhaust pipe inside the seal gas ring 410, the sealing
The part that air inlet pipe 331,332 other end of sealing exhaust pipe are located at 520 two sides of piston with switching inner cavity 511 respectively is connected to, described
Switching inner cavity 511 is arranged in the switching shell 510 of switching valve；
Flared channels 522, lower speaker hole 521, the upper flared channels 522,521 phase of lower speaker hole are provided on the piston 520
It is intercommunicated and run through piston 520, and gag lever post 561 is fixed on 520 one end of piston, the switching inner cavity 511 and gag lever post 561
Corresponding position is fixed with retention bead 562, and has the first interval between the gag lever post 561 and retention bead 562；
The switching inner cavity 511 with sealing air inlet pipe 331 be connected to one end also respectively with the first air inlet pipe 351, the second air inlet pipe 352
One end connection, the first air inlet pipe 351,352 other end of the second air inlet pipe are connected to 350 one end of total inlet pipe respectively, total inlet pipe
350 are connected to the exhaust outlet of air pump, and air pump is for pumping outer gas stream in total inlet pipe 350；
Pressure spring 550 is further sleeved between the gag lever post 561 and retention bead 562, pressure spring 550 is used to generate resistance to piston 520
Hinder its elastic force mobile to retention bead 562, the piston 520 and the sealing of switching inner cavity 511, can slide axially assembly；
The switching inner cavity 511 is connected on one end with sealing exhaust pipe 332 is fixed with position-limiting drum 530, is provided on position-limiting drum 530
It is perforative to cross air drain 531, and position-limiting drum 530 is used to limit the piston maximum displacement mobile to position-limiting drum.Switch inner cavity 511 to be arranged
There is position-limiting drum one end to be also connected to gas nozzle 540, switching inner cavity 511 can be connected to by gas nozzle 540 after opening with outside atmosphere；
When original state (Fig. 4 state), upper flared channels 522 are connected to 341 one end of blast pipe, 341 other end of blast pipe into
Enter in inner cover and at the top of face inner cover；The piston 520 is bonded or pastes with position-limiting drum end face under the elastic force effect of pressure spring 550
Tightly, gas nozzle 540 is in close state；Piston 520 is not bonded dress with the first air inlet pipe, the second air inlet pipe and switching inner cavity connectivity part
Match；Lower flared channels 521 are in sealing state (not being connected to switching inner cavity) by the sealing function of piston 520.
In use, relevant device is mounted on orifice plate 140 after being first turned on protective cover 210, protection is then installed
Cover, in booster air pump, air pump pumps air-flow in switching inner cavity, then enters seal gas ring 410 by sealing air inlet pipe 331
Inside, 410 air inlet of seal gas ring expansion, so that 410 outer wall of seal gas ring is adjacent to inner cover inner wall, thus to inner cover 211
Form fixed, sealing effect；
Gas into seal gas ring 410 passes through sealing exhaust pipe 332 into the switching inner cavity for being fixed with 530 side of position-limiting drum
In 511 so that this partial gas pressure rise, then push piston 520 overcome pressure spring elastic force to move to right, until the first air inlet pipe not
It is connected to and (is closed with lower flared channels 521 or by piston outer wall) with switching inner cavity, at this point, piston unsealing sealing air inlet pipe and switching
Inner cavity connectivity part, air-flow go successively to seal gas ring, continue to press on piston and move to right, until gag lever post and retention bead are held out against, this
When piston move right to maximum displacement, and lower flared channels are connected to the first air inlet pipe, and piston will seal in air inlet pipe and switching
The cutting sealing of chamber connectivity part, air-flow can only enter in inner cover, scatter after then spraying to inner cover top surface, flow still further below, thus
Exhaust pipe discharge, so as to realize in inner cover to dragging motor, servo motor to carry out good heat dissipation.And at seal gas ring
In sealing state, sealing, the fixation to protective cover can be kept.
After the completion of use, when needing to open protective cover, it is only necessary to gas nozzle is opened, so that in switching inner cavity, seal gas ring
Portion's gas discharge, at this time pressure spring by elastic force driving piston be moved to the left, until being bonded herein with position-limiting drum, and seal gas ring by
It in no air pressure inside, can shrink, to release sealing, the fixation to protective cover.
Preferably, the upper flared channels 522 to sealing air inlet pipe 331 and switch 511 connectivity part of inner cavity minimum range L1
Greater than the minimum range L2 of lower flared channels 521 the first air inlet pipe of distance 351 and switching inner cavity connectivity part.This design is so that piston
Before air inlet pipe 331 and switching 511 connectivity part of inner cavity closing will be sealed, the first air inlet pipe 351 is connected to lower flared channels 521, thus
When avoiding sealing air inlet pipe 331 and switching the closing of 511 connectivity part of inner cavity, the first air inlet pipe 351 does not connect also with lower flared channels 521
It is logical, cause failure.Design the first air inlet pipe, the purpose of the second air inlet pipe is to prevent piston from quickly moving right, cause to impact,
Air inlet pipe 331 and switching 511 connectivity part of inner cavity closing will be sealed up to piston by being connected in the cutting of the first air inlet pipe with switching inner cavity
Before, the first air inlet pipe can be gradually connected to lower flared channels, that is, be gradually decreased into the air-flow of seal gas ring, to be formed slow
Rush effect.
Referring to Fig. 5-Fig. 7, due in actual use, if the operation power of servo motor is larger, bring therewith
Calorific value is also very big, brushes at this time if uniquely relying on outer gas stream inner cover, this obviously can not meet radiating requirements.It is existing
Have in technology and mainly uses and then can be radiated by water-cooling system to servo motor with the servo motor of water cooling, it is such as public
The number of opening is technology contents disclosed in the Chinese patents such as CN108803567A, CN103048621A.But this scheme can be brought
Using the design of sealing structure required for water cooling and waterproof structure for motor, it is clear that its cost is higher, and to dragging electricity
There are no water-cooling structures for machine some, this results in insufficient to motor radiating is dragged.In this regard, applicant proposes to directly adopt water-cooling system
Will air it is cooling after be blown into inner cover, thus to dragging motor, servo motor to carry out entirety cooling.
The water-cooling system, including water cooling box, the water cooling box include cabinet 440, are interior case 441 inside cabinet 440, interior
Be equipped with inside case 441 spiral setting water cooling tube 310,310 both ends of water cooling tube be pierced by respectively cabinet 440 and respectively with air inlet connecting
First 311,312 one end of exhaust joint is connected to, and the total inlet pipe 350 is truncated into two sections and is connected on inlet suction port 311, row respectively
On gas connector 312, so that water cooling tube 310 is connected to as a complete tracheae with total inlet pipe 350；
441 top of interior case is connected to water inlet pipe 321, bottom is connected to drainpipe 322, the water inlet pipe 321 and cooler
Exit connection, the access port of cooler and the outlet of water pump, the import of water pump is connected to the water in water tank, in water tank
Portion is also connected to drainpipe 322.In use, water pump pumps water to interior case, and is full of interior case, so that water cooling tube 310 is flooded
Not yet, it can be water cooled by the air-flow inside water cooling tube 310, to reduce the temperature of air-flow, can also be increased internally at this time
Cooling effect inside cover.This design can to servo motor, to dragging motor to carry out while radiating, and do not need to be prevented
Water-bound design, therefore cost is relatively low.When water temperature is higher in interior case, cooler can be opened, so that water temperature is reduced, so that interior
Water energy in case enough preferably exchanges heat with the air-flow in water cooling tube 310, that is, increases heat dissipation effect.
Preferably due to which if temperature sensor is individually arranged in interior case detection effect can be made due to local temperature difference
Inaccuracy, so that whether be unable to judge accurately should open cooler.In this regard, applicant is mounted with heat conducting pipe 450 in interior case,
Heat conducting pipe 450 is open at one end and open end and the assembly of orifice plate 460 are fixed, and is provided with several perforative intercommunicating pores on orifice plate 460
461, and intercommunicating pore 461 will be connected to inside interior case and heat conducting pipe 450, and driving plug 230 is also equipped in the heat conducting pipe 450, is driven
Memory spring 220 is installed, 220 both ends of memory spring are filled with driving plug 230, orifice plate 460 respectively between dynamic plug 230, orifice plate 460
With fixation；
Driving plug 230 and 440 inner sealing of heat conducting pipe, can axis move up assembly, and drive plug 230 and 231 one end of frizzen
It assembles fixed 231 other end of frizzen and is pierced by the triggering end face after heat conducting pipe 450 with microswitch 610, the microswitch
610 incoming end and the end that picks out of constant-current source are conductively connected, and the incoming end and power supply of constant-current source are conductively connected, and constant-current source is used for
Power supply is converted into the direct current of burning voltage, AC-DC converter can be selected in the present embodiment.
Control terminal (coil) conductive connection for picking out end and contactor of the microswitch 610, the incoming end of contactor
The power connection end conductive connection of end and cooler is conductively connected, picked out with power supply.When microswitch is triggered, microswitch is closed
It closes, so that contactor coil is obtained electric and is closed, cooler, which is powered, to be run, to freeze to water.
The memory spring 220 shortens at 30 DEG C or less, extends at 50-60 DEG C.Water temperature reaches 50-60 DEG C in interior case
When, memory spring 220 is by thermal stretching, so that frizzen be pushed to trigger microswitch, microswitch closure, so that contactor closes
It closes, that is, cooler work freezes to water, at this point, being judged as inside inner cover that temperature is higher.Until water temperature reaches 30 DEG C or less
When, memory spring 220 shortens, so that the fine motion beginning is disconnected, contactor is disconnected at this time, and cooler is out of service, and this
When also illustrate that temperature is not high inside inner cover.
Preferably, the outlet of the air inlet of air pump and solenoid directional control valve, the first import of solenoid directional control valve and outside
Atmosphere, the second import are connected to exhaust pipe, the control terminal of solenoid directional control valve and the signal end communication of real-time simulation controller
It connects, temperature sensor 620 is installed in the inner cover, the signal end of temperature sensor 620 and the signal end communication of PLC connect
It connects, and temperature sensor is for detecting temperature inside inner cover.Solenoid directional control valve, which is used to select one, to be made the first import, the second import and goes out
Mouthful connection, when original state, the first import of solenoid directional control valve and the outlet of solenoid directional control valve.
When the temperature that temperature sensor detects reaches threshold value (50 DEG C), PLC controls solenoid directional control valve for the second import
When water temperature reaches 50-60 DEG C in interior case, start cooler so that inner cover internal gas flow single cycle with outlet,
To guarantee to the cooling effect inside inner cover.And when the temperature that temperature sensor detects is lower than threshold value, solenoid directional control valve
It restPoses.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of to dragging DC servo motor to control simulated teaching platform characterized by comprising
PC machine, is equipped with algorithm simulation software, host computer monitoring software, and the algorithm simulation software carries out algorithm mould for the end PC
Quasi- emulation, the host computer monitoring software are used to realize monitoring information or input control information by picture；
Real-time simulation controller, the arithmetic analysis for being simulated according to algorithm simulation software are the corresponding control of each entity device
Signal and parameter；
DC driven control cabinet, for driving servo motor to run；
To motor group is dragged, servo motor is installed, to motor is dragged, servo motor is driven by DC driven control cabinet；To dragging electricity
It is equipped in machine and detects it to the encoder for dragging output shaft rotational angle, encoder and the digital signal in DC driven control cabinet
The connection of pinboard module communication, the signal end of digital signal switching plate module and the signal end communication of real-time simulation controller connect
It connects；
Digital IO and the analog acquisition output of DC driven control cabinet inside PLC are connected to the number of real-time simulation controller
Word mouth and simulation mouth, PC machine are connected with real-time simulation controller by ethernet communication.
2. as described in claim 1 to drag DC servo motor control simulated teaching platform, which is characterized in that DC driven control
Luggage processed contains 48V DC driving power, 24V DC control power supply, motor driving plate, terminal block and digital Signals Transfer Board mould
Block, the signal end of the PLC built in DC driven control cabinet and the signal end communication connection of real-time simulation controller.
3. as described in claim 1 to drag DC servo motor control simulated teaching platform, which is characterized in that PC machine is used for
To the software for dragging DC servo motor teaching and research, while also passing through the base of two motors of display display interface display platform
This electric parameter, operating condition；Real-time simulation controller, for running the simulation model of PC machine foundation, by Ethernet and PC machine into
Row connection, to exchange the information and control instruction of acquisition；Real-time simulation controller through signal wire and DC driven control cabinet into
Row connection, to exchange control signal, motor position information, motor enable signal；To the servo motor dragged in motor group via
Power cable is connected with DC driven control cabinet, carries out power drives by DC driven control cabinet；The encoder for dragging motor is passed through
It is connected by signal cable with PLC signal end, to provide code device signal for DC driven control cabinet.
4. it is as described in any one of claims 1-3 to drag DC servo motor control simulated teaching platform, which is characterized in that also
Including protective module, the protective module includes pedestal, and pedestal is fixed on in the rack for dragging motor group, and solid on the pedestal
Surely there is a protective cover, be inner cover inside protective cover, inner cover covers on servo motor, to dragging outside motor；
The pedestal and inner cover corresponding position are fixed with support tube, seal gas ring are set on the support tube, and on the inside of support tube
Bottom is connected to with exhaust pipe one end, and the exhaust pipe other end picks out inner cover；
It is connected to respectively with sealing air inlet pipe, sealing exhaust pipe one end inside the seal gas ring, the sealing air inlet pipe, sealing row
The part that the tracheae other end is located at piston two sides with switching inner cavity respectively is connected to, and the switching of switching valve is arranged in the switching inner cavity
In shell.
5. as claimed in claim 4 to drag DC servo motor control simulated teaching platform, which is characterized in that protective cover use
Transparent, fire prevention, heat-barrier material are made.
6. as claimed in claim 4 to drag DC servo motor control simulated teaching platform, which is characterized in that on the piston
Flared channels, lower speaker hole are provided with, the upper flared channels, lower speaker hole are interconnected and run through piston, and on piston one end
It is fixed with gag lever post, the switching inner cavity and gag lever post corresponding position are fixed with retention bead, and the gag lever post and retention bead
Between have first interval；
The switching inner cavity is connected to one end with sealing air inlet pipe and is also connected to respectively with the first air inlet pipe, second air inlet pipe one end, the
One air inlet pipe, the second air inlet pipe other end are connected to total inlet pipe one end respectively, and total inlet pipe is connected to the exhaust outlet of air pump, gas
Pump is for pumping outer gas stream in total inlet pipe；Pressure spring, the work are further sleeved between the gag lever post and retention bead
Plug and switching bore seal, can slide axially assembly.
7. as claimed in claim 6 to drag DC servo motor control simulated teaching platform, which is characterized in that in the switching
Chamber is connected on one end with sealing exhaust pipe and is fixed with position-limiting drum, and perforative air drain excessively, the setting of switching inner cavity are provided on position-limiting drum
There is position-limiting drum one end to be also connected to gas nozzle；
When original state, upper flared channels are connected to blast pipe one end, the blast pipe other end enter in inner cover and with just internally
Cover top；The piston is bonded or is adjacent to position-limiting drum end face under the elastic force effect of pressure spring, and gas nozzle is in close state；Piston
Assembly is not bonded with the first air inlet pipe, the second air inlet pipe and switching inner cavity connectivity part；The sealing function that lower flared channels pass through piston
In sealing state.
8. as claimed in claim 7 to drag DC servo motor control simulated teaching platform, which is characterized in that the upper loudspeaker
Slot is to sealing air inlet pipe and switches the minimum range L1 of inner cavity connectivity part greater than in lower the first air inlet pipe of flared channels distance and switching
The minimum range L2 of chamber connectivity part.
9. as claim 5-8 it is described in any item to drag DC servo motor control simulated teaching platform, which is characterized in that also
Including water-cooling system, the water-cooling system, including water cooling box, the water cooling box includes cabinet, and box house is interior case, in interior case
Portion be equipped with spiral setting water cooling tube, water cooling tube both ends be pierced by respectively cabinet and respectively with inlet suction port, exhaust joint one end
Connection, the total inlet pipe are truncated into two sections and are connected on inlet suction port respectively, on exhaust joint；
The interior box top is connected to water inlet pipe, bottom is connected to drainpipe, and the water inlet pipe is connected to the exit of cooler,
The import of the access port of cooler and the outlet of water pump, water pump is connected to the water in water tank, and water tank inside is gone back and drainpipe
Connection.
10. as claimed in claim 9 to drag DC servo motor control simulated teaching platform, which is characterized in that in interior case
Heat conducting pipe is installed, heat conducting pipe is open at one end and open end and orifice plate assembly are fixed, and is provided with several perforative connections on orifice plate
Hole, and intercommunicating pore will be connected to inside interior case and heat conducting pipe, driving plug is also equipped in the heat conducting pipe, between driving plug, orifice plate
Memory spring is installed, memory spring both ends are fixed with driving plug, orifice plate assembly respectively；
Driving plug and heat conducting pipe inner sealing, can axis move up assembly, and drive plug and the assembly of frizzen one end is fixed triggers
The bar other end is pierced by the triggering end face after heat conducting pipe with microswitch, the incoming end of the microswitch and picking out for constant-current source
End is conductively connected, and the incoming end and power supply of constant-current source are conductively connected, and constant-current source is used to power supply being converted into the straight of burning voltage
Galvanic electricity；
The control terminal conductive connection for picking out end and contactor of the microswitch, the incoming end and power supply conduction of contactor connect
Connect, pick out the power connection end conductive connection of end and cooler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910562724.8A CN110223579A (en) | 2019-06-26 | 2019-06-26 | One kind to drag DC servo motor control simulated teaching platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562724.8A CN110223579A (en) | 2019-06-26 | 2019-06-26 | One kind to drag DC servo motor control simulated teaching platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111007794A (en) * | 2019-12-24 | 2020-04-14 | 江苏希西维轴承有限公司 | Simulation system and method for numerically controlled grinder in bearing industry |
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