CN201027714Y - Hydraulic equipment controlled by servo motor - Google Patents
Hydraulic equipment controlled by servo motor Download PDFInfo
- Publication number
- CN201027714Y CN201027714Y CNU2007201084014U CN200720108401U CN201027714Y CN 201027714 Y CN201027714 Y CN 201027714Y CN U2007201084014 U CNU2007201084014 U CN U2007201084014U CN 200720108401 U CN200720108401 U CN 200720108401U CN 201027714 Y CN201027714 Y CN 201027714Y
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- oil pump
- actuating motor
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Abstract
The utility model discloses a hydraulic device controlled by a servo electromotor and comprises a data acquisition and processing device, a pressure pickup, a displacement pickup, an actuator, a servo electromotor, an oil box and an oil pump connected with the oil pump, wherein, the oil pump is connected with the actuator; the actuator is respectively connected with the pressure pickup and the displacement pickup; the servo electromotor is respectively connected with the data acquisition and processing device, the pressure pickup and the displacement pickup; the oil pump is connected with the servo electromotor. The utility model forms a closed-cycle control system by that the servo electromotor drives the oil pump and the actuator implements the control of pressure, displacement and speed.
Description
Technical field
The utility model discloses a kind of hydraulic pressure installation, be applied on the machinery, belong to the hydraulic power system technical field with actuating motor control.
Background technique
At present, hydraulic pressure installation has been widely used in the every field of social production, mainly be to adopt common electric machine to drive the purpose that oil pump is realized operating cylinder work, though this device is simple in structure, safeguard easily, but, it is fuel-displaced that oil pump is pressed the oil pump rated flow all the time, caused the temperature of working hydraulic pressure oil too high, thereby make hydraulic pressure installation need adopt the operation continuously of supporting cooling equipment, and the delivery pressure of clutch release slave cylinder and movement speed must be regulated by modulating valve (Flow valve) and relief valve (pressure valve), have increased cost.Variable displacement pump has appearred in the progress along with oil pump technology afterwards, on the basis of aforesaid hydraulic system, remove metering pump and modulating valve, adopt variable displacement pump, flow by the Moderator Variable pump reaches the movement speed of adjusting hydraulic pressure installation, but the method is influenced by the regulation range of metering pump, makes the Flow-rate adjustment precision not high, so only use under the less demanding situation of Flow-rate adjustment.Along with electric power in recent years, the development of electronic technology and large-scale integrated circuit (LSI) and maturation, the appearance of frequency variator makes ac speed control technology that new breakthrough arranged, promoted the development of hydraulic pressure installation simultaneously, they adopt quantitative gear pump and common electric machine, the rotating speed of regulating common electric machine with frequency variator reaches the purpose of regulating flow then, but relief valve is still adopted in the adjusting of its pressure, and this device is because the inherent characteristic influence of frequency variator, when low speed, the moment deficiency, speed is fast inadequately during starting, causes the system speed degradation, system dynamics responded slow, and incompatibility is being used at a high speed and on the high-precision hydraulic device.Also have a kind of hydraulic pressure installation generally to adopt the control system of valve combinations such as electro-hydraulic proportional valve or servovalve, adopt computer control, wanting of its control effect and ratio of precision variable displacement pump or Frequency Converter Control is high, but, wherein the machining accuracy of Proportional valve or servovalve etc. and to the requirement of hydraulic oil medium all than higher, hydraulic power system and control system heating value are big.
Comprehensively above-mentioned, mainly there is the shortcoming of following several respects in existing hydraulic power unit:
(1) the machining accuracy height of valve system in the existing hydraulic power unit, manufacture difficulty is big, and efficient is low;
(2) existing hydraulic power drive unit to the requirement of hydraulic oil medium all than higher;
(3) heating value of existing hydraulic power drive unit system is big, the system energy consumption height, thereby take auxiliary coolant system work, cause cost to increase.
(4) accommodation of existing hydraulic power drive unit system is little, and flexibility is also little, and with the difference of equipment dynamic actuating mechanism controls target such as positioning control, speed controlling, the control of power value, its valve system changes greatly thereupon, and mechanical structure and oil circuit variation are greatly.
(5) existing hydraulic power drive unit system is when low speed or small flow startup, and speed was fast inadequately when there was startup in some, the system dynamics low-response, and Applicable scope is subjected to great limitation.
The model utility content
For addressing the above problem, the utility model purpose be to provide a kind of simple in structure, efficient is high, cost is low, has the hydraulic pressure installation with actuating motor control of automatic pressure regulation, displacement, speed.
The technological scheme that its technical problem that will solve the utility model adopts is: a kind of hydraulic pressure installation with actuating motor control, comprise data acquisition and processing (DAP) device, pressure transducer, displacement transducer, the oil pump that links to each other with fuel tank, actuator, oil pump links to each other with actuator, actuator links to each other with pressure transducer, displacement transducer respectively, it is characterized in that: also comprise actuating motor, actuating motor links to each other with data acquisition and processing (DAP) device, pressure transducer, displacement transducer respectively, and oil pump links to each other with actuating motor.
Of the present utility modelly further be set to: described actuating motor comprises servo driver, speed device, magneto, servo driver links to each other with data acquisition and processing (DAP) device, pressure transducer, displacement transducer respectively, speed device is made as one with magneto and links to each other with servo driver, and magneto links to each other with oil pump by coupling.
Of the present utility modelly further be set to: be provided with selector valve between oil pump and the actuator.
Of the present utility modelly further be set to: described data acquisition and processing (DAP) device comprises computer and nonshared control unit.
Of the present utility modelly further be set to: described actuator is oil hydraulic cylinder or oil hydraulic motor.
After adopting said structure, the utility model by actuating motor drive oil pump, actuator carries out work, actuator passes to actuating motor to signal according to need of work by pressure transducer, displacement transducer, drive the control of oil pump, actuator's enforcement pressure, displacement, speed by actuating motor, form a closed loop control system, simultaneously, actuating motor can carry out the adjusting of flow to oil pump.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is a working principle structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises fuel tank 1, oil pump 2, actuating motor 3, servo driver 31, speed device 32, magneto 33, actuator 4, coupling 5, selector valve 6, pressure transducer 7, displacement transducer 8, data acquisition and processing (DAP) device 9.Fuel tank 1 links to each other with oil pump 2, oil pump 2 links to each other with actuator 4, actuator 4 links to each other with pressure transducer 7, displacement transducer 8 respectively, actuating motor 3 comprises servo driver 31, speed device 32, magneto 33, servo driver 31 links to each other with data acquisition and processing (DAP) device 9, pressure transducer 7, displacement transducer 8 respectively, speed device 32 is made as one with magneto 33 and links to each other with servo driver 31, and magneto 33 links to each other with oil pump 2 by coupling 5.Be provided with selector valve 6 between oil pump 2 and the actuator 4, can change the direction that hydraulic oil flows, described data acquisition and processing (DAP) device 9 comprises computer and nonshared control unit.Described actuator 4 is oil hydraulic cylinder or oil hydraulic motor.
Working principle of the present utility model: data acquisition and processing (DAP) device 9 output informations are instructed to actuating motor 3, make actuating motor 3 work, drive oil pump 2 work by actuating motor 3 by coupling 5, oil pump 2 sucks hydraulic oil by oil pipe by job requirement from fuel tank 1, and hydraulic oil is input to the actuator 4 by oil pipe from the oil outlet of oil pump 2, impel actuator's 4 work, when actuator 4 need be under certain pressure moves with certain speed, pressure transducer 7, displacement transducer 8 passes to servo driver 31 to signal by datawire according to actuator's 4 work requirements, regulate the moment or the rotating speed of actuating motor 3, realization is implemented pressure to actuator 4, displacement, the control of speed forms a closed loop control system.
Claims (6)
1. hydraulic pressure installation with actuating motor control, comprise data acquisition and processing (DAP) device (9), pressure transducer (7), displacement transducer (8), the oil pump (2) that links to each other with fuel tank (1), actuator (4), oil pump (2) links to each other with actuator (4), actuator (4) respectively with pressure transducer (7), displacement transducer (8) links to each other, it is characterized in that: also comprise actuating motor (3), actuating motor (3) respectively with data acquisition and processing (DAP) device (9), pressure transducer (7), displacement transducer (8) links to each other, and oil pump (2) links to each other with actuating motor (3).
2. the hydraulic pressure installation with actuating motor control according to claim 1, it is characterized in that: described actuating motor (3) comprises servo driver (31), speed device (32), magneto (33), servo driver (31) links to each other with data acquisition and processing (DAP) device (9), pressure transducer (7), displacement transducer (8) respectively, speed device (32) is made as one with magneto (33) and links to each other with servo driver (31), and magneto (33) links to each other with oil pump (2) by coupling (5).
3. the hydraulic pressure installation with actuating motor control according to claim 1 is characterized in that: be provided with selector valve (6) between oil pump (2) and the actuator (4).
4. the hydraulic pressure installation with actuating motor control according to claim 1 and 2, it is characterized in that: data acquisition and processing (DAP) device (9) comprises computer and nonshared control unit.
5. according to claim 1 or 3 described hydraulic pressure installation with actuating motor control, it is characterized in that: described actuator (4) is oil hydraulic cylinder.
6. according to claim 1 or 3 described hydraulic pressure installation with actuating motor control, it is characterized in that: described actuator (4) is oil hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201084014U CN201027714Y (en) | 2007-04-20 | 2007-04-20 | Hydraulic equipment controlled by servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201084014U CN201027714Y (en) | 2007-04-20 | 2007-04-20 | Hydraulic equipment controlled by servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027714Y true CN201027714Y (en) | 2008-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201084014U Expired - Lifetime CN201027714Y (en) | 2007-04-20 | 2007-04-20 | Hydraulic equipment controlled by servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027714Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532516B (en) * | 2009-04-10 | 2010-12-29 | 长春理工大学 | Device for simulating servo system load by electrohydraulic servo |
| CN102336029A (en) * | 2011-10-13 | 2012-02-01 | 湖州机床厂有限公司 | Servo control system for hydraulic machine |
| CN103945954A (en) * | 2011-11-11 | 2014-07-23 | 爱迪生麦基公司 | Servo motor controlled hydraulic pump unit for tube end forming equipment |
| CN106438584A (en) * | 2016-09-23 | 2017-02-22 | 北京机械设备研究所 | Motor speed regulation based variable-pressure variable-displacement type hydraulic servo mechanism and working method |
| CN106931006A (en) * | 2015-12-29 | 2017-07-07 | 哈尔滨恒誉名翔科技有限公司 | A kind of new steering gear hydraulic system |
-
2007
- 2007-04-20 CN CNU2007201084014U patent/CN201027714Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532516B (en) * | 2009-04-10 | 2010-12-29 | 长春理工大学 | Device for simulating servo system load by electrohydraulic servo |
| CN102336029A (en) * | 2011-10-13 | 2012-02-01 | 湖州机床厂有限公司 | Servo control system for hydraulic machine |
| CN103945954A (en) * | 2011-11-11 | 2014-07-23 | 爱迪生麦基公司 | Servo motor controlled hydraulic pump unit for tube end forming equipment |
| US9505049B2 (en) | 2011-11-11 | 2016-11-29 | Addisonmckee Inc. | Servo motor controlled hydraulic pump unit for tube end forming equipment |
| TWI600481B (en) * | 2011-11-11 | 2017-10-01 | 艾迪生麥基公司 | Servo motor controlled hydraulic pump unit for tube end forming equipment |
| CN106931006A (en) * | 2015-12-29 | 2017-07-07 | 哈尔滨恒誉名翔科技有限公司 | A kind of new steering gear hydraulic system |
| CN106438584A (en) * | 2016-09-23 | 2017-02-22 | 北京机械设备研究所 | Motor speed regulation based variable-pressure variable-displacement type hydraulic servo mechanism and working method |
| CN106438584B (en) * | 2016-09-23 | 2018-04-20 | 北京机械设备研究所 | A kind of variable pressure and flow type hydraulic servomechanism and method of work based on electric machine speed regulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W11513 Conclusion of examination: Claim No. 200720108401.4 of the patent rights for utility model 1-2 is invalid, and the patent right shall continue to be valid on the basis of claim 3-6. Decision date of declaring invalidation: 20100318 Decision number of declaring invalidation: 14580 Denomination of utility model: Hydraulic equipment controlled by servo motor Granted publication date: 20080227 Patentee: Shaoxing Kente Mechanical & Electrical Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080227 |
|
| CX01 | Expiry of patent term |