CN205013442U - Single servo motor double pump closed loop control system - Google Patents
Single servo motor double pump closed loop control system Download PDFInfo
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- CN205013442U CN205013442U CN201520590844.6U CN201520590844U CN205013442U CN 205013442 U CN205013442 U CN 205013442U CN 201520590844 U CN201520590844 U CN 201520590844U CN 205013442 U CN205013442 U CN 205013442U
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- pressure
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Abstract
The utility model relates to a single servo motor double pump closed loop control system, including total controller, servo drive, the fuel feed pump assembly, hydraulic system and pressure control regulator, total controller passes through pressure control regulator and servo drive electric connection, the fuel feed pump assembly is used for the fuel feeding for hydraulic system, the fuel feed pump assembly includes two at least oil pumps, each oil pump is connected with the servo drive transmission simultaneously, each oil pump is equipped with the fuel feeding oil circuit, the fuel feeding oil circuit is connected with hydraulic system's oil circuit, wherein, be equipped with PRESSURE DETECTOR on the fuel feeding oil circuit of an at least oil pump, PRESSURE DETECTOR respectively with total controller and hydraulic system electric connection, be equipped with pressure relief device on the fuel feeding oil circuit of at least another oil pump. When low, control the large -traffic fuel feeding of each oil pump when detecting hydraulic system pressure, it is fast, when the hydraulic system oil pressure reaches system setting's pressure, partly oil pump pressure release, all the other partly oil pump fuel feeding to it works under rated power to keep servo motor, driver.
Description
Technical field
The utility model relates to hydraulic servo control system, particularly a kind of single servo motor double pump closed loop control system.
Background technique
Metering pump joined by actuating motor is a kind of servo-control system that current hydraulic servo control system is conventional, usual single pump list motor, is convenient to control.But some are produced to the user of compound product, they require that the speed of press machine is fast, tonnage large (pressure is large), so, need to require large to actuating motor, actuator power, the corresponding raising of cost.
Model utility content
The purpose of this utility model is the deficiency overcoming the existence of above-mentioned prior art, and provide a kind of simply rational in infrastructure, energy-conservation, low cost, can meet low, the fireballing technological requirement of pressure, can meet again the single servo motor double pump closed loop control system of high, the slow-footed technological requirement of pressure.
The purpose of this utility model is achieved in that
A kind of single servo motor double pump closed loop control system, comprise master controller, servo drive, oil feed pump assembly, hydraulic system and pressure-controlling regulator, master controller is electrically connected by pressure-controlling regulator and servo drive, oil feed pump assembly is used for hydraulic system fuel feeding, it is characterized in that: described oil feed pump assembly comprises at least two oil pumps, each oil pump is in transmission connection with servo drive simultaneously, each oil pump is provided with oil feeding line, oil feeding line is connected with the oil circuit of hydraulic system, wherein, the oil feeding line of at least one oil pump is provided with pressure detector, pressure detector is electrically connected with master controller and hydraulic system respectively, at least the oil feeding line of another oil pump is provided with pressure relief device.
The purpose of this utility model can also adopt following technical measures to solve:
As a kind of scheme more specifically, described oil feed pump assembly comprises two oil pumps, and it is respectively the first oil pump and the second oil pump, and the first oil pump is connected with the oil circuit of hydraulic system respectively with the oil feeding line of the second oil pump.
Described pressure detector is arranged on the oil feeding line of the first oil pump, and pressure relief device is arranged on the oil feeding line of the second oil pump.
Described master controller is the first PLC.
Described master controller is also electrically connected with man-machine interface, and the effect of man-machine interface is, pressure given order given to master controller input flow rate.Described man-machine interface is touch screen.
Described servo drive comprises the submaster controller, speed controlling and adjusted device, analog line driver and the actuating motor that are electrically connected successively, actuating motor and oil feed pump assembly are in transmission connection, the rotating shaft of actuating motor is provided with the speed detector for detecting its rotating speed, and speed detector and submaster controller are electrically connected.
Described submaster controller is the second PLC.
Described speed detector is rotating coder.
The beneficial effects of the utility model are as follows:
(1) this kind of control system is when detecting that hydraulic system pressure is low, and control each oil pump high flow rate oil supply, speed is fast, when hydraulic system oil pressure reaches the pressure of default, the pressure release of part oil pump, all the other a part of oil pump feeds, thus maintenance actuating motor, driver work under nominal power, meet compound product user low at production aluminum product pressure, speed is fast, and when producing stainless steel, requires that pressure is high, slow-footed technological requirement, not only economy but also energy-conservation;
(2) this kind of control system is preferably two oil pumps.
Accompanying drawing explanation
Fig. 1 is the utility model one example structure block diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Shown in Figure 1, a kind of single servo motor double pump closed loop control system, comprise master controller 2, servo drive, oil feed pump assembly, hydraulic system 12 and pressure-controlling regulator 3, master controller 2 is electrically connected by pressure-controlling regulator 3 and servo drive, oil feed pump assembly is used for hydraulic system 12 fuel feeding, described oil feed pump assembly comprises the first oil pump 8 and the second oil pump 9, two oil pumps are in transmission connection with servo drive simultaneously, two oil pumps are provided with oil feeding line, oil feeding line is connected with the oil circuit of hydraulic system 12, wherein, the oil feeding line of the first oil pump 8 is provided with pressure detector 11, pressure detector 11 is electrically connected with master controller 2 and hydraulic system 12 respectively, the oil feeding line of the second oil pump 9 is provided with pressure relief device 13.
Described master controller 2 is the first PLC.Described master controller 2 is also electrically connected with man-machine interface 1, and described man-machine interface 1 is touch screen.
Described servo drive comprises the submaster controller 4, speed controlling and adjusted device 5, analog line driver 6 and the actuating motor 7 that are electrically connected successively, actuating motor 7 and oil feed pump assembly are in transmission connection, the rotating shaft of actuating motor 7 is provided with the speed detector 10 for detecting its rotating speed, and speed detector 10 and submaster controller 4 are electrically connected.
Described submaster controller 4 is the second PLC.
Described speed detector 10 is rotating coder.
Its working principle is: when hydraulic system 12 pressure is low, double pump (first oil pump 8 and the second oil pump 9) high flow rate oil supply, speed is fast, when hydraulic system 12 oil pressure reaches the pressure of default, one pump (the second oil pump 9) pressure release, single pump (remaining first oil pump 8) fuel feeding, thus maintenance actuating motor 7, analog line driver 6 work under nominal power, meet compound product user low at production aluminum product pressure, speed is fast, and when producing stainless steel, requires that pressure is high, slow-footed technological requirement, not only economy but also energy-conservation.
Claims (9)
1. a single servo motor double pump closed loop control system, comprise master controller, servo drive, oil feed pump assembly, hydraulic system and pressure-controlling regulator, master controller is electrically connected by pressure-controlling regulator and servo drive, oil feed pump assembly is used for hydraulic system fuel feeding, it is characterized in that: described oil feed pump assembly comprises at least two oil pumps, each oil pump is in transmission connection with servo drive simultaneously, each oil pump is provided with oil feeding line, oil feeding line is connected with the oil circuit of hydraulic system, wherein, the oil feeding line of at least one oil pump is provided with pressure detector, pressure detector is electrically connected with master controller and hydraulic system respectively, at least the oil feeding line of another oil pump is provided with pressure relief device.
2. single servo motor double pump closed loop control system according to claim 1, it is characterized in that: described oil feed pump assembly comprises two oil pumps, it is respectively the first oil pump and the second oil pump, and the first oil pump is connected with the oil circuit of hydraulic system respectively with the oil feeding line of the second oil pump.
3. single servo motor double pump closed loop control system according to claim 2, is characterized in that: described pressure detector is arranged on the oil feeding line of the first oil pump, and pressure relief device is arranged on the oil feeding line of the second oil pump.
4. single servo motor double pump closed loop control system according to claim 1, is characterized in that: described master controller is the first PLC.
5. single servo motor double pump closed loop control system according to claim 1, is characterized in that: described master controller is also electrically connected with man-machine interface.
6. single servo motor double pump closed loop control system according to claim 5, is characterized in that: described man-machine interface is touch screen.
7. single servo motor double pump closed loop control system according to claim 1, it is characterized in that: described servo drive comprises the submaster controller, speed controlling and adjusted device, analog line driver and the actuating motor that are electrically connected successively, actuating motor and oil feed pump assembly are in transmission connection, the rotating shaft of actuating motor is provided with the speed detector for detecting its rotating speed, and speed detector and submaster controller are electrically connected.
8. single servo motor double pump closed loop control system according to claim 7, is characterized in that: described submaster controller is the second PLC.
9. single servo motor double pump closed loop control system according to claim 7, is characterized in that: described speed detector is rotating coder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520590844.6U CN205013442U (en) | 2015-08-08 | 2015-08-08 | Single servo motor double pump closed loop control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520590844.6U CN205013442U (en) | 2015-08-08 | 2015-08-08 | Single servo motor double pump closed loop control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013442U true CN205013442U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520590844.6U Active CN205013442U (en) | 2015-08-08 | 2015-08-08 | Single servo motor double pump closed loop control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013442U (en) |
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2015
- 2015-08-08 CN CN201520590844.6U patent/CN205013442U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Single servo motor double pump closed loop control system Effective date of registration: 20170728 Granted publication date: 20160203 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch Pledgor: GUANGDONG METAL FORMING MACHINE WORKS Co.,Ltd. Registration number: 2017440000056 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220819 Granted publication date: 20160203 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch Pledgor: GUANGDONG METAL FORMING MACHINE WORKS Co.,Ltd. Registration number: 2017440000056 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |