CN201623537U - Braking energy recycling device of servo drive hydraulic system - Google Patents
Braking energy recycling device of servo drive hydraulic system Download PDFInfo
- Publication number
- CN201623537U CN201623537U CN2010200270703U CN201020027070U CN201623537U CN 201623537 U CN201623537 U CN 201623537U CN 2010200270703 U CN2010200270703 U CN 2010200270703U CN 201020027070 U CN201020027070 U CN 201020027070U CN 201623537 U CN201623537 U CN 201623537U
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- Prior art keywords
- servo
- drive
- module
- brake
- energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/766—Measuring, controlling or regulating the setting or resetting of moulding conditions, e.g. before starting a cycle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a braking energy recycling device of a servo drive hydraulic system, comprising a servo controller which carries out servo control to a servo permanent magnetic motor; the servo controller comprises a rectifier module, a brake module, an inverter module, a drive brake resistor and a servo drive brake recovery unit; a two-phase power supply output end of the rectifier module and the input end of the inverter module are connected through a DC bus circuit; the inverter module inverts and outputs a three-phase power supply to drive the servo permanent magnetic motor; the servo drive brake recovery unit is parallelly connected with the drive brake resistor, and both are incorporated between two phases of DC buses, and the brake module is serially connected with a negative output end of the drive brake resistor; and the device stores excessive energy in the energy of the servo permanent magnetic motor when braking and reducing speed when an injection molding machine is hydraulically driven through the servo drive brake energy recovery unit, and releases and recycles the energy in other action processes of the injection molding machine.
Description
Technical field
The utility model relates to the injection molding machine of use driven by servomotor oil pump as the servo-hydraulic drive form in Main Hydraulic Pump source, it can with in the injection molding machine course of work because the electrical power storage that consumes in the servomotor retarding braking process, and then the dc bus of this store electrical energy by servo controller be played back in the system utilize again, thereby reach purpose of energy saving.
Background technology
Along with developing rapidly of society, the energy supply and demand aggravation of contradictions faces arduous energy-saving and emission-reduction task simultaneously, thereby energy-conserving product becomes the inexorable trend of people's demand, has great social significance.The hydraulic injection molding machine system is also developing aspect energy-conservation, the control of hydraulic injection molding machine system is from the Induction Motor-Driven constant displacement pump of initial application, the middle developing stage of experience variable pump/electronic variable pump has carried out the transition to now and has used servo drive hydraulic system in batches.
Servo drive hydraulic system comprises servo magneto, servo special-purpose oil pump, servo controller, brake resistance etc.Adjust servo magneto rotating speed, closed loop pressure and flow value under given conditions according to pressure/flow set.Do not fall because of there being unnecessary hydraulic oil overflow, thereby have than higher efficient.Servo magneto is in brake and moderating process; motor is equivalent to the generator effect; send to the servo controller bus by inversion module; busbar voltage (with the voltage same point behind the three phase rectifier) when servo controller; after being higher than certain value; in order to protect servo control element, to discharge to brake resistance by brake unit, brake resistance heating (electric energy is converted to heat energy) consumes unnecessary energy.One side brake resistance heating consumed power in this process, and, need increase the electric fan heat radiation again on the other hand in order to guarantee servo electronic box temperature (brake resistance all is installed in the servo electronic box generally speaking), want the consumption systems electric energy simultaneously, caused dual waste.
The utility model content
The utility model wants the technical solution problem to provide the energy that produces at servo magneto in the hydraulic injection molding machine driving process in brake and moderating process, reclaim the unit by the servo-drive braking energy source this excess energy is stored, in other course of action of injection molding machine, it is discharged a kind of servo drive hydraulic system braking energy source regeneration device that this energy is utilized again.The utility model is solving traditional servo-hydraulic driving injection molding machine in the injection molding machine production process, servo magneto is produce power in brake and moderating process, can only allow it convert the phenomenon that heat exhaustion causes energy waste to by brake resistance, can drive the energy-conservation again 3-8% that reaches on the electric energy basis of injection molding machine consumption at energy-conservation servo-hydraulic, significantly reduce the consumption and the waste of the energy.
For solving the problems of the technologies described above, a kind of servo drive hydraulic system braking energy source of the utility model regeneration device, the servo controller that comprises the servo magneto of SERVO CONTROL, wherein: described servo controller is by rectification module, brake module, inversion module, drive the braking of brake resistance and servo-drive and reclaim the unit formation, be connected by the dc bus circuit between described rectification module two-phase power supply output and inversion module input, drive servo magneto through inversion module inversion output three phase mains, described servo-drive braking is reclaimed the unit and is driven and incorporates between the two-phase dc bus after brake resistance is in parallel, and described brake module string is located at the cathode output end that drives brake resistance.
Above-mentioned servo drive hydraulic system braking energy source regeneration device, described servo-drive braking is reclaimed the unit and is composed in series by capacitor, charging resistor, control relay and control corresponding circuit.
Above-mentioned servo drive hydraulic system braking energy source regeneration device, described inversion module is the IGBT three-phase bridge type converter.
The utility model produces electric energy to servo magneto and effectively stores to get up owing to adopted technique scheme in brake and moderating process, use for follow-up operation, reduce energy dissipation, simultaneously, can significantly reduce the consumption and the consumption of temperature control electric fan, further reduce the waste of the energy.Specifically realize as follows: 1. in injection molding machine servo-hydraulic system, increase the servo-drive braking energy source and reclaim the unit, this servo-drive braking energy source reclaims the electric energy that unit can the storing servo permagnetic synchronous motor produces in the skidding process, this electric energy can be discharged in the course of work of injection molding machine simultaneously; 2. begin from the source to handle, on dc bus, seal in the servo-drive braking energy source and reclaim the unit, to reduce the energy that brake resistance consumes; 3. brake resistance and servo-drive braking energy source reclaim the unit parallel connection together, unnecessary electric energy after finishing in order to consumption servo-drive braking energy source recovery unit storage, protection servo-drive brake unit and servo drive system.Wherein 1. described increasing in the servomechanism installation of servo-hydraulic system injection molding machine drives braking energy source recovery unit, and the electric energy that the storing servo permagnetic synchronous motor produces in the skidding process is discharged into this electric energy in other actions of injection molding machine simultaneously.And 3. described brake resistance and servo-drive braking energy source reclaim the unit parallel connection together, consumes the servo-drive braking energy source and reclaim the unit and store and finish the unnecessary electric energy in back, and it all is characteristics of this utility model requirement that the servo-drive brake unit is shielded.
Described rectification module is a break-make principle of utilizing power semiconductor device (diode, thyristor, IGBT etc.), and the three-phase main-frequency AC power of importing (50Hz or 60Hz) is transformed into direct current.Having only a direction, can not be dc inverter alternating current.
Described brake module is to produce electric energy can't discharge in servo magneto abrupt deceleration and brake process, thereby makes busbar voltage be far longer than commutating voltage, and the protection component that is provided with.Brake module is provided with a brake voltage, when voltage is higher than setting voltage, and the brake unit conducting, voltage falls back to and is lower than brake voltage, and brake unit disconnects.
Described inversion module according to the machine operation difference, becomes DC power supply all controllable three-phase alternating current of frequency, voltage and supplies with motor, is generally the IGBT three-phase bridge type converter.
Described servo magneto is the actuator of whole " servo drive hydraulic system braking energy source regenerative use technology " and the electric energy of braking electric energy, when servo magneto slowing down and brake process in, kinetic energy changes electric energy into, servo magneto send electricity to inversion module, becomes direct current by inversion module again and is stored in servo-drive braking energy source recovery unit.
Described brake resistance is electric energy conversion the becoming executive component that thermal energy consumption is fallen; after enough electric energy have been stored in servo-drive braking energy source recovery unit; unnecessary electric energy consumes by brake resistance, equally the servo-drive braking energy source is reclaimed the unit and shields.
Described servo-drive braking energy source reclaims the unit, begins from the source to handle, and seals on dc bus.The unit is made up of capacitor, charging resistor, control relay and control corresponding circuit, when the servo energy that produces in brake and moderating process with magneto is higher than a certain numerical value, start working in the recovery unit, with unnecessary store energy in capacitor, when DC bus-bar voltage is returned to normal level, reclaim the unit energy stored and be played back in the system by dc bus.The servo-drive braking energy source reclaims the suitable storage battery in unit, and storage changes the braking electric energy that comes and makes DC bus-bar voltage can not be higher than brake voltage from servo magneto, and the while also provides institute's electric energy stored for the action of system.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but does not constitute any restriction of the present utility model.
The structural representation of Fig. 1 the utility model servo drive hydraulic system braking energy source regenerative use technology.
Embodiment
As shown in Figure 1, a kind of servo drive hydraulic system braking energy source regeneration device of the present utility model, the servo controller that comprises the servo magneto 4 of SERVO CONTROL, servo controller is by rectification module 1, brake module 2, inversion module 3, drive the braking of brake resistance 5 and servo-drive and reclaim unit 6 formations, be connected by the dc bus circuit between rectification module 1 two-phase power supply output and inversion module 3 inputs, drive servo magneto 4 through inversion module 3 inversions output three phase mains, servo-drive braking recovery unit 6 and driving brake resistance 5 are in parallel and incorporate between the two-phase dc bus, and brake module 2 strings are located at the cathode output end that drives brake resistance 5; The servo-drive braking is reclaimed unit 6 and is composed in series by capacitor, charging resistor, control relay and control corresponding circuit.
The utility model is that the unnecessary electric energy that will consume in the injection molding machine course of work reclaims the unit by the servo-drive braking energy source and stores, and then this electric energy is acted in other motions of injection molding machine, forms recyclingly, has reduced the consumption and the waste of the energy.
As follows when the utility model is specifically worked:
Servo-hydraulic drives in the injection molding machine motion process, at first the AC energy of system is by the rectification module 1 and the inversion module 3 conversion different frequency three-phase alternating currents of servo-driver, driving servo permagnetic synchronous motor 4 rotates, motion drive servo-hydraulic dedicated pump 7 actions by servo permagnetic synchronous motor 4 provide the hydraulic pressure energy, order about the injection molding machine motion.In this process, servo-hydraulic drives the required pressure of injection molding machine and flow provides by servo permagnetic synchronous motor 4 drive servo-hydraulic dedicated pumps 7, when needing pressure flow to reduce in the injection molding machine course of work or stopping, the speed of servo permagnetic synchronous motor 4 will slow down or stop moment, because the moment of speed reduces, this process can produce certain braking electric energy.
This braking electric energy is back to dc bus by the inversion module in the servo controller 3; turn back to the servo-drive braking energy source and reclaim unit 6; the busbar voltage of this moment has been higher than the voltage of rectification module 1 input; rectification module 1 has not been worked; after the servo-drive braking energy source reclaims the enough braking electric energy of unit 6 storages; if also have unnecessary braking electric energy; this unnecessary electric energy can consume by brake resistance 5 conversion thermal energy that are connected with braking driving braking energy source recovery unit 6; simultaneously also can adequately protect the servo-drive braking energy source and reclaim unit 6 with brake resistance 5 brake module 2 that links together; when the effect of brake module 2 is higher than the setting voltage value of servo drive system and servo-drive braking energy source recovery unit 6 when "+" magnitude of voltage in the servo-driver system; the switch of brake module 2 will connect; "+" utmost point of system is communicated with by brake resistance 5 and "-" utmost point, reduces system voltage below setting voltage value.
After storing electricity is finished in servo-drive braking energy source recovery unit 6, when servo-hydraulic driving injection molding machine carries out next one action, at first discharge the electric energy that the servo-drive braking energy source reclaims unit 6.When voltage is lower than the voltage of rectification module input, just use external electric energy, drive servomotor 4 motions, these electric weight convert needed pressure of injection machine system and flow again to, finish the injection molding machine action.
In like manner, when still needing deceleration in the injection molding machine course of work or stopping to move, the kinetic energy that servomotor 4 produces in the braking stopped process is converted to power storage again and reclaims in the unit 6 at the servo-drive braking energy source, to finish next action.
In sum, the utility model is as specification and diagramatic content, makes actual sample and through repeatedly use test, from the effect of use test, provable the utility model can reach the purpose that it is expected, practical value is unquestionable.Above illustrated embodiment only is used for conveniently illustrating the utility model, be not that the utility model is done any pro forma restriction, have in the technical field under any and know the knowledgeable usually, if in the scope that does not break away from technical characterictic that the utility model is carried, utilize technology contents that the utility model discloses to do the local equivalent embodiment that changes or modify, and do not break away from technical characterictic content of the present utility model, all still belong in the scope of the utility model technical characterictic.
Claims (3)
1. servo drive hydraulic system braking energy source regeneration device, the servo controller that comprises servo magneto (4), it is characterized in that: described servo controller is by rectification module (1), brake module (2), inversion module (3), drive the braking of brake resistance (5) and servo-drive and reclaim unit (6) formation, be connected by the dc bus circuit between described rectification module (1) two-phase dc power output end and inversion module (3) input, described inversion module (3) three-phase output end circuit connects servo magneto (4), described servo-drive braking recovery unit (6) and driving brake resistance (5) are in parallel and incorporate between the two-phase dc bus, and described brake module (2) string is located at the cathode output end that drives brake resistance (5).
2. servo drive hydraulic system braking energy source regeneration device according to claim 1 is characterized in that: described servo-drive braking is reclaimed unit (6) and is composed in series by capacitor, charging resistor, control relay and control corresponding circuit.
3. servo drive hydraulic system braking energy source regeneration device according to claim 1 is characterized in that: described inversion module (3) is the IGBT three-phase bridge type converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200270703U CN201623537U (en) | 2010-01-20 | 2010-01-20 | Braking energy recycling device of servo drive hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200270703U CN201623537U (en) | 2010-01-20 | 2010-01-20 | Braking energy recycling device of servo drive hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623537U true CN201623537U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200270703U Expired - Fee Related CN201623537U (en) | 2010-01-20 | 2010-01-20 | Braking energy recycling device of servo drive hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201623537U (en) |
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2010
- 2010-01-20 CN CN2010200270703U patent/CN201623537U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20180120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |