CN203027199U - High-power servo driving device - Google Patents
High-power servo driving device Download PDFInfo
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- CN203027199U CN203027199U CN2012206569510U CN201220656951U CN203027199U CN 203027199 U CN203027199 U CN 203027199U CN 2012206569510 U CN2012206569510 U CN 2012206569510U CN 201220656951 U CN201220656951 U CN 201220656951U CN 203027199 U CN203027199 U CN 203027199U
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Abstract
The utility model discloses a high-power servo driving device. The high-power servo driving device disclosed by the utility model comprises a control circuit, a rectifier and filter circuit and a braking circuit, and further comprises a driving protection circuit, a switch power device and an output current detecting circuit, wherein the control circuit is used for sending a driving control signal and transmitting the driving control signal to the driving protection circuit; the driving protection circuit is used for receiving the driving control signal, converting the driving control signal to a differential driving signal, carrying out power amplification on the differential driving signal and then sending the differential driving signal to the switch power device; the output current detecting circuit is used for detecting a current signal of the differential driving signal and feeding the detected current signal back to the driving protection circuit; and the driving protection circuit is used for receiving the feedback current signal, performing delay protection and sending a fault signal to the control circuit when the current signal exceeds a preset safety current threshold value. The high-power servo driving device disclosed by the utility model has the beneficial effects of being safe and reliable, strong in stability and high in mechanical strength and is applied to the driving of automated production equipment such as heavy numerically-controlled machine tools, forging machine tools and the like.
Description
Technical field
The utility model relates to a kind of high-power servo drive.
Background technology
High-power servo drive (more than 100KW) is the in demand high-end servo drives in automated production field such as present heavy digital control machine tool, forging machine tool.Therefore, in prior art in the urgent need to a kind of high-power servo drive that is suitable for driving the automated production equipments such as heavy digital control machine tool, forging machine tool.
The utility model content
In order to solve the problem of prior art, the utility model provides a kind of high-power servo drive, can realize driving the servomotor of heavy automated production equipment, and safe and reliable, stability is strong.
For achieving the above object, the utility model is taked following technical scheme:
A kind of high-power servo drive; comprise control circuit, current rectifying and wave filtering circuit and the braking circuit that is connected with current rectifying and wave filtering circuit; this device also comprises Drive Protecting Circuit, switch power device and output current detection circuit, and the switch power device is connected with braking circuit, wherein:
Control circuit is connected with Drive Protecting Circuit, sends drive control signal and this drive control signal is delivered to Drive Protecting Circuit;
The drive control signal that the Drive Protecting Circuit reception control circuit sends also converts this drive control signal to the differential driving signal, then the differential driving signal is carried out being sent to the switch power device after power amplification;
Output current detection circuit is connected with Drive Protecting Circuit, detects the current signal of the differential driving signal of Drive Protecting Circuit output, and the current signal that detects is fed back to Drive Protecting Circuit;
Drive Protecting Circuit receives the current signal of output current detection circuit feedback, when current signal surpasses default safe current threshold value, carries out delay protection and sends fault-signal to control circuit.
Preferably, Drive Protecting Circuit comprises over-current detection circuit, when this over-current detection circuit detects current signal and surpasses default safe current threshold value, produces the enabling signal of carrying out delay protection and sending fault-signal to control circuit.
Preferably; Drive Protecting Circuit also comprises cuts off device and integrator delay-time circuit; integrator delay-time circuit is connected with over-current detection circuit; integrator delay-time circuit starts the integration time-delay according to enabling signal; send the first shutoff signal and send fault-signal to control circuit to cutting off device when delay time arrives, cut off device and cut off the output of differential driving signal according to the first shutoff signal.
Preferably; Drive Protecting Circuit also comprises the pressure differential detection circuit; the pressure differential detection circuit is connected with the cut-out device with the switch power device respectively; the conduction voltage drop during conducting of sense switch power device; when conduction voltage drop surpasses default shutter limit value; send the second shutoff signal to cutting off device, cut off device and cut off the output of differential driving signal according to the second shutoff signal.
Preferably; Drive Protecting Circuit comprises that also driving signal enables control circuit; after the cut-out device receives the first shutoff signal and/or the second shutoff signal; enable control circuit transmission stop signal to driving signal; driving signal enables to stop the transmission of differential driving signal after control circuit receives this stop signal.
Preferably; Drive Protecting Circuit also comprises amplifying circuit; amplifying circuit enables control circuit with the driving signal and is connected; after the cut-out device receives the first shutoff signal and/or the second shutoff signal; send stop signal to amplifying circuit; after amplifying circuit receives this stop signal, stop the amplification of differential driving signal.
Preferably, the switch power device comprises the monomer insulated gate bipolar transistor IGBT of at least four parallel connections.
Preferably, the device in each circuit has sequentially by copper bar and couples together.
The utility model is owing to taking above-described technical scheme, and compared with prior art, it comprises following advantage: safe and reliable, stability is strong, and mechanical strength is high, is suitable for the driving of the automated production equipments such as heavy digital control machine tool, forging machine tool.
Description of drawings
Fig. 1 is the circuit theory diagrams of high-power servo drive of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1; in the application's a execution mode; a kind of high-power servo drive; comprise control circuit, current rectifying and wave filtering circuit and the braking circuit that is connected with current rectifying and wave filtering circuit; this high-power servo drive also comprises Drive Protecting Circuit, switch power device and output current detection circuit; the switch power device is connected with braking circuit, wherein:
Control circuit is connected with Drive Protecting Circuit, sends drive control signal and this drive control signal is delivered to Drive Protecting Circuit.
The drive control signal that the Drive Protecting Circuit reception control circuit sends also converts this drive control signal to the differential driving signal, then the differential driving signal is carried out being sent to the switch power device after power amplification.
Output current detection circuit is connected with Drive Protecting Circuit, detects the current signal of the differential driving signal of Drive Protecting Circuit output, and the current signal that detects is fed back to Drive Protecting Circuit.
Drive Protecting Circuit receives the current signal of output current detection circuit feedback, when current signal surpasses default safe current threshold value, carries out delay protection and sends fault-signal to control circuit.
Selectively; in the application's embodiment; Drive Protecting Circuit can comprise over-current detection circuit, when this over-current detection circuit can detect current signal and surpasses default safe current threshold value, produces the enabling signal of carrying out delay protection and sending fault-signal to control circuit.
Selectively; in the application's embodiment; Drive Protecting Circuit can also comprise cuts off device and integrator delay-time circuit; integrator delay-time circuit can be connected with over-current detection circuit; integrator delay-time circuit starts the integration time-delay according to enabling signal; can send the first shutoff signal and send fault-signal to control circuit to cutting off device when delay time arrives, cut off device and can cut off according to the first shutoff signal the output of differential driving signal.
Selectively; in the application's embodiment; Drive Protecting Circuit can also comprise the pressure differential detection circuit; the pressure differential detection circuit can be connected with the cut-out device with the switch power device respectively; the conduction voltage drop during conducting of sense switch power device; when conduction voltage drop surpasses default shutter limit value, can send the second shutoff signal to cutting off device, cut off device and can cut off according to the second shutoff signal the output of differential driving signal.
Selectively; in the application's embodiment; Drive Protecting Circuit can also comprise that driving signal enables control circuit; after the cut-out device receives the first shutoff signal and/or the second shutoff signal; can enable control circuit transmission stop signal to driving signal; driving signal enables can stop the transmission of differential driving signal after control circuit receives this stop signal.
Selectively; in the application's embodiment; Drive Protecting Circuit can also comprise amplifying circuit; amplifying circuit can enable control circuit with the driving signal and be connected; after the cut-out device receives the first shutoff signal and/or the second shutoff signal; can send stop signal to amplifying circuit, after amplifying circuit receives this stop signal, can stop the amplification of differential driving signal.
Selectively, in the application's embodiment, the switch power device can comprise the monomer insulated gate bipolar transistor IGBT of at least four parallel connections.Because monomer I GBT electric current is limited, at least four the monomer I GBT parallel connection in the present embodiment can reach the needs of high-power output current.
In the application's embodiment, mechanical structure layout aspect can be with the necessary device in circuit, such as, power supply input rectifying device, buffering device, reactor, filter capacitor, inverter power device, high order harmonic component absorb device, control device etc. and are linked in sequence by copper bar, simultaneously screen and low inductance conductive plate can be installed, interfere with each other problem when effectively solving large electric current I GBT parallel connection.
In the application's embodiment, the operating power of this servo drive can be 300 kilowatts, and when realizing, operating power can also be larger.
Obviously, those skilled in the art deliberately carries out various changes and modification and does not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes and modification interior.
Claims (8)
1. high-power servo drive; comprise control circuit, current rectifying and wave filtering circuit and the braking circuit that is connected with described current rectifying and wave filtering circuit; it is characterized in that; this device also comprises Drive Protecting Circuit, switch power device and output current detection circuit; described switch power device is connected with described braking circuit, wherein:
Described control circuit is connected with described Drive Protecting Circuit, sends drive control signal and this drive control signal is delivered to described Drive Protecting Circuit;
The drive control signal that the described control circuit of described Drive Protecting Circuit reception sends also converts this drive control signal to the differential driving signal, more described differential driving signal is carried out being sent to described switch power device after power amplification;
Described output current detection circuit is connected with described Drive Protecting Circuit, detects the current signal of the described differential driving signal of described Drive Protecting Circuit output, and the current signal that detects is fed back to described Drive Protecting Circuit;
Described Drive Protecting Circuit receives the described current signal of described output current detection circuit feedback, when described current signal surpasses default safe current threshold value, carries out delay protection and sends fault-signal to described control circuit.
2. device according to claim 1; it is characterized in that: described Drive Protecting Circuit comprises over-current detection circuit; when this over-current detection circuit detects described current signal and whether surpasses default safe current threshold value, produce the enabling signal of carrying out delay protection and sending fault-signal to described control circuit.
3. device according to claim 2; it is characterized in that: described Drive Protecting Circuit also comprises cuts off device and integrator delay-time circuit; described integrator delay-time circuit is connected with described over-current detection circuit; described integrator delay-time circuit starts the integration time-delay according to described enabling signal; send the first shutoff signal and send described fault-signal to described control circuit to described cut-out device when delay time arrives, described cut-out device cuts off the output of described differential driving signal according to described the first shutoff signal.
4. device according to claim 3; it is characterized in that: described Drive Protecting Circuit also comprises the pressure differential detection circuit; described pressure differential detection circuit is connected with described cut-out device with described switch power device respectively; conduction voltage drop when detecting described switch power break-over of device; when described conduction voltage drop surpasses default shutter limit value; send the second shutoff signal to described cut-out device, described cut-out device cuts off the output of described differential driving signal according to described the second shutoff signal.
5. according to claim 3 or 4 described devices; it is characterized in that: described Drive Protecting Circuit comprises that also driving signal enables control circuit; after described cut-out device receives described the first shutoff signal and/or described the second shutoff signal; enable control circuit to described driving signal and send stop signal; described driving signal enables to stop the transmission of described differential driving signal after control circuit receives this stop signal.
6. device according to claim 5; it is characterized in that: described Drive Protecting Circuit also comprises amplifying circuit; described amplifying circuit enables control circuit with described driving signal and is connected; after described cut-out device receives described the first shutoff signal and/or described the second shutoff signal; send stop signal to described amplifying circuit; after described amplifying circuit receives this stop signal, stop the amplification of described differential driving signal.
7. device according to claim 1, it is characterized in that: described switch power device comprises the monomer insulated gate bipolar transistor IGBT of at least four parallel connections.
8. device according to claim 6 is characterized in that: the device in each circuit has sequentially by copper bar and couples together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206569510U CN203027199U (en) | 2012-12-03 | 2012-12-03 | High-power servo driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206569510U CN203027199U (en) | 2012-12-03 | 2012-12-03 | High-power servo driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027199U true CN203027199U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206569510U Expired - Fee Related CN203027199U (en) | 2012-12-03 | 2012-12-03 | High-power servo driving device |
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| CN (1) | CN203027199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143716A1 (en) * | 2014-03-28 | 2015-10-01 | 奇点新源国际技术开发(北京)有限公司 | Information converter power supply circuit, system, and power supply method |
-
2012
- 2012-12-03 CN CN2012206569510U patent/CN203027199U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143716A1 (en) * | 2014-03-28 | 2015-10-01 | 奇点新源国际技术开发(北京)有限公司 | Information converter power supply circuit, system, and power supply method |
| CN105684313A (en) * | 2014-03-28 | 2016-06-15 | 奇点新源国际技术开发(北京)有限公司 | Information converter power supply circuit, system, and power supply method |
| CN105684313B (en) * | 2014-03-28 | 2019-04-16 | 奇点新源国际技术开发(北京)有限公司 | Power supply circuit, system and the method for supplying power to of transcriber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING CTB SERVO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING BEICHAO SERVO TECHNIQUES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 101500 Beijing city Miyun ten Li Bao Zhen Wang Ge Zhuang Village West 200 meters Patentee after: BEIJING CHAOTONGBU SERVO CO., LTD. Address before: 101500 Beijing city Miyun ten Li Bao Zhen Wang Ge Zhuang Village West 200 meters Patentee before: Beijing Beichao Servo Techniques Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20201203 |