CN101021212A - Electric control method and electric control device for plunger variable hydraulic pump - Google Patents
Electric control method and electric control device for plunger variable hydraulic pump Download PDFInfo
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- CN101021212A CN101021212A CN 200610200617 CN200610200617A CN101021212A CN 101021212 A CN101021212 A CN 101021212A CN 200610200617 CN200610200617 CN 200610200617 CN 200610200617 A CN200610200617 A CN 200610200617A CN 101021212 A CN101021212 A CN 101021212A
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- hydraulic pump
- variable hydraulic
- plunger variable
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- plunger
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Abstract
The present invention discloses an electric control method of plunger type variable hydraulic pump and its electric control device. Said method is characterized by that it substitutes hydraulic control valve and hydrautic variable cylinder of original plunger-type variable hydraulic pump by using one electric control device. Said electric control device is composed of DC speed-reducing motor and regulation piston connected with output shaft of motor, the output end of said regulation piston is connected with distributing disk of plunger-type variable hydraulic pump. Said invention utilizes the change of rotation direction and speed of DC speed-reducing motor to regulate the flow rate of plunger-type variable hydraulic pump.
Description
Technical field
The present invention relates to the electric-control method and the electric controller of a kind of electric-control method and device thereof, particularly a kind of plunger variable hydraulic pump.
Background technique
The working principle of plunger variable hydraulic pump is such: when rotating under the driving of main shaft at motor, plunger rotates with main shaft, drives cylinder body simultaneously and rotates synchronously.Because have angle between the axis of cylinder body and main shaft, in rotation process, plunger will move reciprocatingly with respect to cylinder body in the hole of cylinder body.When plunger is rotated with main shaft by upper dead center, will at the bottom of the hole of cylinder body, direction move, enter the oil extraction stroke, hydraulic oil will outwards be got rid of, and when plunger went to lower dead point position, the oil extraction stroke finished.When being rotated further, plunger will enter the oil suction stroke up to running to upper dead center position, thereby realize once suction, the oil extraction circulation of single plunger.Seven plungers are rapid movement successively, thereby makes oil hydraulic pump realize continuous suction, oil extraction function.From geometrical principle as can be known, change the angle between the axis of cylinder body and main shaft, just can change the stroke of plunger in cylinder bore, promptly changed the volume of each stroke suction of plunger, oil extraction, thereby changed the hydraulic pressure pump delivery.At present, angle between the axis of change cylinder body and main shaft, be to experience hydraulic oil by hydraulic piston or piston set, promote regulating piston and driving lever, angle between the oil distribution casing change cylinder body in the drive pump housing and the axis of main shaft, to reach the purpose that changes flow, it is low that this method is adjusted validity, the change of flow is not steady yet, is unfavorable for digitizing and automation control.
Summary of the invention
The objective of the invention is to: electric-control method and electric controller that a kind of plunger variable hydraulic pump is provided.Solving in the prior art plunger variable hydraulic pump flow, to adjust validity low, and flow changes jiggly shortcoming, also controls for the digitizing of plunger variable hydraulic pump flow adjustment and automation to create conditions.
Technological scheme of the present invention: the electric-control method of plunger variable hydraulic pump, this method are hydraulic control valve and the hydraulic pressure variable cylinder that substitutes former plunger variable hydraulic pump with an electric controller; Electric controller comprises that DC speed-reducing constitutes with the regulating piston that is connected with motor output shaft, and the output terminal of regulating piston is connected with the oil distribution casing of plunger variable hydraulic pump; By changing turning to of DC speed-reducing the flow of plunger variable hydraulic pump is regulated with speed.
In the electric-control method of above-mentioned plunger variable hydraulic pump,,, be used for control and observe by send signal near switch when the flow of plunger variable hydraulic pump reaches maximum or hour.
The electric controller of plunger variable hydraulic pump, its formation comprise the housing 2 that is provided with cambered surface 1, have driving lever groove 3 on the cambered surface 1, are provided with through hole 4 in the housing 2; Be provided with the regulating piston 5 that can move in the hole in the through hole 4, regulating piston 5 is connected with driving lever 6, and an end of driving lever 6 stretches out from driving lever groove 3; Tapped hole on the regulating piston 5 is threaded with adjusting screw rod 7, and an end of adjusting screw rod 7 is connected on connecting base 9 or the housing 2 through two tapered roller bearings arranged side by side 8, and the driving hole of adjusting screw rod 7 one ends is connected with DC speed-reducing 10.
In the electric controller of above-mentioned plunger variable hydraulic pump, connecting base 9 is provided with oil sealing 11.
In the electric controller of aforesaid plunger variable hydraulic pump, housing 2 is provided with near switch 12, also is provided with end cap 13 on the housing 2, also is provided with near switch 12 on the end cap 13.
In the electric controller of aforesaid plunger variable hydraulic pump, be respectively equipped with between 14, two spring seats 14 of spring seat on the driving lever 6 in the housing 2 and on the end cap 13 of housing 2 and be provided with spring 15.
Compared with prior art, the invention provides a kind of electric-control method and electric controller of plunger variable hydraulic pump.Having solved in the prior art plunger variable hydraulic pump flow, to adjust validity low, and flow changes jiggly shortcoming, also controls the condition of having created for the digitizing of plunger variable hydraulic pump flow adjustment and automation.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the partial enlarged drawings at A position in the accompanying drawing 1;
Accompanying drawing 3 is the partial enlarged drawings at B position in the accompanying drawing 1;
Accompanying drawing 4 is application state schematic representation of the present invention;
Being labeled as in the accompanying drawing: 1-cambered surface, 2-housing, 3-driving lever groove, the 4-through hole, 5-regulating piston, 6-driving lever, the 7-adjusting screw rod, 8-tapered roller bearing, 9-connecting base, the 10-DC speed-reducing, the 11-oil sealing, 12-is near switch, the 13-end cap, 14-spring seat, 15-spring, the 16-oil distribution casing, the 17-plunger variable hydraulic pump.
Embodiment
Embodiment.The electric-control method of plunger variable hydraulic pump, as shown in Figure 1, this method is hydraulic control valve and the hydraulic pressure variable cylinder that substitutes former plunger variable hydraulic pump with an electric controller; Electric controller comprises that DC speed-reducing constitutes with the regulating piston that is connected with motor output shaft, and the output terminal of regulating piston is connected with the oil distribution casing of plunger variable hydraulic pump; By changing turning to of DC speed-reducing the flow of plunger variable hydraulic pump is regulated with speed.When the flow of plunger variable hydraulic pump reaches maximum or hour,, be used for control and observe by send signal near switch.
The electric controller of plunger variable hydraulic pump, shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, its formation comprises the housing 2 that is provided with cambered surface 1, has driving lever groove 3 on the cambered surface 1, is provided with through hole 4 in the housing 2; Be provided with the regulating piston 5 that can move in the hole in the through hole 4, regulating piston 5 is connected with driving lever 6, and an end of driving lever 6 stretches out from driving lever groove 3; Tapped hole on the regulating piston 5 is threaded with adjusting screw rod 7, and an end of adjusting screw rod 7 is connected on connecting base 9 or the housing 2 through two tapered roller bearings arranged side by side 8, and the driving hole of adjusting screw rod 7 one ends is connected with DC speed-reducing 10.Connecting base 9 is provided with oil sealing 11.Housing 2 is provided with near switch 12, also is provided with end cap 13 on the housing 2, also is provided with near switch 12 on the end cap 13.Be respectively equipped with between 14, two spring seats 14 of spring seat on the driving lever 6 in the housing 2 and on the end cap 13 of housing 2 and be provided with spring 15.
The electric control principle of plunger variable hydraulic pump is: as shown in Figure 1, must be electric when DC speed-reducing 10, drive with DC speed-reducing 10 output shaft couplings adjusting screw rod 7 together and rotate.And connect mutually by trapezoidal thread between adjusting screw rod 7 and the regulating piston 5.Because adjusting screw rod 7 is supported by two tapered roller bearings arranged side by side 8, so adjusting screw rod 7 can not move vertically.So when adjusting screw rod 7 rotates, regulating piston 5 will move in governor body 2 vertically.Driving lever 6 passes regulating piston 5 stage casings, and is fixed on the regulating piston 5.An end that has sphere on the driving lever 6 inserts in the hole of oil distribution casing 16.Therefore, when regulating piston 5 moves, be fixed on the also same moved further of driving lever 6 on the regulating piston 5, and drive cambered surface 1 slip of oil distribution casing 16 along governor body 2.Between the cylinder body of oil distribution casing 16 and plunger variable hydraulic pump, cooperate connection mutually by sphere, have self centering function.So when the cambered surface 1 of governor body 2 is slided, the cylinder body that drives plunger variable hydraulic pump is swung up and down at oil distribution casing 16.Angle between the axis of the axis of cylinder body and main shaft is changed, thereby change the flow of plunger variable hydraulic pump 17, realize changing the purpose of flow.By changing the field current of DC speed-reducing 10, can change the rotation direction of DC speed-reducing 10, the flow of plunger variable hydraulic pump 17 is increased on demand or reduce.When the flow of plunger variable hydraulic pump 17 changes to maximum or least limit, will send signal near switch 12, the flow of plunger variable hydraulic pump 17 will stop to become big or diminish.More than everything all is to finish under the control of SC system controller.
DC speed-reducing 10 is installed on the connecting base 9 by its flange and seam, and its output shaft inserts in the hole of adjusting screw rod 7.The outer ring of tapered roller bearing 8 is positioned on the governor body 2 connecting base 9, and tapered roller bearing 8 is installed in the hole of connecting base 9.Adjusting screw rod 7 is supported and the location by tapered roller bearing 8, the output shaft of one end and DC speed-reducing 10 links, the other end links by screw thread and regulating piston 5, and this structure has guaranteed that DC speed-reducing 10, adjusting screw rod 7 and regulating piston 5 are coaxial and can make regulating piston 5 do straight line motion along its axis when DC speed-reducing 10 is rotated; Oil sealing 11 is installed in the connecting base 9, and adjusting screw rod 7 is implemented motive sealing, avoids hydraulic fluid leak; On end cap 13, be equipped with near switch 12, when regulating piston 5 moves upward, its end face will be gradually near the induction end near switch 12, when its distance reaches distance of reaction near switch 12, to send signal near switch 12, the indication plunger variable hydraulic pump has been in the minimum flow position of setting; Spring seat 14 is designed to have the shape of caudal peduncle, caudal peduncle passes the hole of driving lever 6, spring seat 14 is positioned on the driving lever 6, under the impacting force effect of spring 15, spring seat 14 is close on the driving lever 6 and with the axial direction of driving lever 6 along regulating piston 5 is moved reciprocatingly.The corresponding position of caudal peduncle at governor body 2 upper spring seats 14, be equipped with near switch 12, when driving driving lever 6, regulating piston 5 moves downward, spring seat 14 also will move downward synchronously, the caudal peduncle end face of spring seat 14 will be gradually near the induction end near switch 12, when its distance reaches distance of reaction near switch 12, will send signal near switch 12, the indication plunger variable hydraulic pump has been in the maximum flow position of setting.
Claims (6)
1. the electric-control method of plunger variable hydraulic pump is characterized in that: this method is hydraulic control valve and the hydraulic pressure variable cylinder that substitutes former plunger variable hydraulic pump with an electric controller; Electric controller comprises that DC speed-reducing constitutes with the regulating piston that is connected with motor output shaft, and the output terminal of regulating piston is connected with the oil distribution casing of plunger variable hydraulic pump; By changing turning to of DC speed-reducing the flow of plunger variable hydraulic pump is regulated with speed.
2. the electric-control method of plunger variable hydraulic pump according to claim 1 is characterized in that: reach maximum or hour when the flow of plunger variable hydraulic pump in this method, by send signal near switch, be used for control and observe.
3. the electric controller of plunger variable hydraulic pump, it is characterized in that: its formation comprises the housing (2) that is provided with cambered surface (1), has driving lever groove (3) on the cambered surface (1), is provided with through hole (4) in the housing (2); Be provided with the regulating piston (5) that can move in the hole in the through hole (4), regulating piston (5) is connected with driving lever (6), and an end of driving lever (6) stretches out from driving lever groove (3); Tapped hole on the regulating piston (5) is threaded with adjusting screw rod (7), one end of adjusting screw rod (7) is connected on connecting base (9) or the housing (2) through two tapered roller bearings arranged side by side (8), and the driving hole of adjusting screw rod (7) one ends is connected with DC speed-reducing (10).
4. the electric controller of plunger variable hydraulic pump according to claim 3, it is characterized in that: connecting base (9) is provided with oil sealing (11).
5. the electric controller of plunger variable hydraulic pump according to claim 3, it is characterized in that: housing (2) is provided with near switch (12), also is provided with end cap (13) on the housing (2), also is provided with near switch (12) on the end cap (13).
6. according to the electric controller of claim 3 or 5 described plunger variable hydraulic pumps, it is characterized in that: the driving lever (6) in the housing (2) upward and on the end cap (13) of housing (2) is respectively equipped with spring seat (14), is provided with spring (15) between two spring seats (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102006173A CN100526645C (en) | 2006-06-23 | 2006-06-23 | Electric control method and electric control device for plunger variable hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102006173A CN100526645C (en) | 2006-06-23 | 2006-06-23 | Electric control method and electric control device for plunger variable hydraulic pump |
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| Publication Number | Publication Date |
|---|---|
| CN101021212A true CN101021212A (en) | 2007-08-22 |
| CN100526645C CN100526645C (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006102006173A Active CN100526645C (en) | 2006-06-23 | 2006-06-23 | Electric control method and electric control device for plunger variable hydraulic pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761464A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | Axial variable plunger pump |
| CN107035640A (en) * | 2017-05-19 | 2017-08-11 | 无锡英特帕普威孚液压有限责任公司 | A kind of plunger pump that bearing clearance is adjusted with locking nut |
| CN110790185A (en) * | 2019-11-06 | 2020-02-14 | 苏州热工研究院有限公司 | Conveying device for rotor weld joint detection robot |
-
2006
- 2006-06-23 CN CNB2006102006173A patent/CN100526645C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761464A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | Axial variable plunger pump |
| CN107035640A (en) * | 2017-05-19 | 2017-08-11 | 无锡英特帕普威孚液压有限责任公司 | A kind of plunger pump that bearing clearance is adjusted with locking nut |
| CN110790185A (en) * | 2019-11-06 | 2020-02-14 | 苏州热工研究院有限公司 | Conveying device for rotor weld joint detection robot |
| CN110790185B (en) * | 2019-11-06 | 2021-02-12 | 苏州热工研究院有限公司 | Conveying device for rotor weld joint detection robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100526645C (en) | 2009-08-12 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Owner name: CNAC LIYUAN HYDRAULIC CO., LTD. Free format text: FORMER OWNER: GUIZHOU LIYUAN HYDRAULIC CO., LTD. Effective date: 20091023 |
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Effective date of registration: 20091023 Address after: Box 99, Guiyang, Guizhou, China Patentee after: AVIC LIYUAN HYDRAULIC Co.,Ltd. Address before: Box 99, Guiyang, Guizhou, China Patentee before: GUIZHOU LIYUAN HYDRAULIC Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20070822 Assignee: Suzhou Liyuan Hydraulic Co.,Ltd. Assignor: AVIC LIYUAN HYDRAULIC Co.,Ltd. Contract record no.: X2023520000011 Denomination of invention: Electric Control Method and Device of Plunger Variable Hydraulic Pump Granted publication date: 20090812 License type: Exclusive License Record date: 20230620 |