CN101398019A - Hydraulic control method and device for rotating speed of hydraulic motor - Google Patents
Hydraulic control method and device for rotating speed of hydraulic motor Download PDFInfo
- Publication number
- CN101398019A CN101398019A CNA2007102019356A CN200710201935A CN101398019A CN 101398019 A CN101398019 A CN 101398019A CN A2007102019356 A CNA2007102019356 A CN A2007102019356A CN 200710201935 A CN200710201935 A CN 200710201935A CN 101398019 A CN101398019 A CN 101398019A
- Authority
- CN
- China
- Prior art keywords
- rotating speed
- oil
- hydraulic motor
- hydraulic
- hydraulic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 99
- 239000000945 filler Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Images
Landscapes
- Control Of Fluid Gearings (AREA)
Abstract
Description
Claims (10)
- [claim 1] hydraulic control method of hydraulic motor rotating speed is characterized in that: this method is to utilize the external control oil pressure to reach the rotating speed of adjustment oil hydraulic motor and the purpose of moment of torsion through the switching of the large and small chamber of rotating speed hydraulic control valve control motor variable cylinder oil circuit; When the rotating speed of oil hydraulic motor was less than or equal to setting value, the oil circuit in the big chamber of variable piston cylinder was cut off, and oil hydraulic motor is in big discharge capacity and Maximum Torque state; When the rotating speed of oil hydraulic motor was higher than setting value and is not more than rating value, big chamber oil circuit was connected by the rotating speed hydraulic control valve, and the discharge capacity and the moment of torsion of oil hydraulic motor reduce gradually; When the rotating speed of oil hydraulic motor surpassed rated speed, the oil pressure of oil hydraulic motor filler opening raise, and big chamber oil circuit is cut off by the rotating speed hydraulic control valve, and the discharge capacity and the moment of torsion of oil hydraulic motor increase gradually.
- [claim 2] hydraulic control method of hydraulic motor rotating speed according to claim 1 is characterized in that: described external control oil pressure is from the inclined disc type variable displacement pump that is applicable to closed circuit that has the rotating speed hydraulic control that is connected with motor.
- [claim 3] hydraulic control method of hydraulic motor rotating speed according to claim 1, it is characterized in that: the induction of described rotating speed hydraulic control valve is from the oil pressure of oil hydraulic motor import, when oil pressure during greater than setting value, and the oil circuit conducting, when oil pressure was less than or equal to setting value, oil circuit cut off.
- [claim 4] hydraulic control method of hydraulic motor rotating speed according to claim 1, it is characterized in that: described motor variable cylinder comprises cylinder body, piston and driving lever, driving lever is connected with piston, piston is arranged in cylinder body, piston is separated into big chamber and loculus with cylinder body, and big chamber has oil circuit to be connected with the rotating speed hydraulic control valve respectively with loculus.
- The oil hydraulic motor rotating speed hydraulic control unit that [claim 5] constitutes according to the described hydraulic control method of hydraulic motor rotating speed of the arbitrary claim of claim 1 to 4, it is characterized in that: this device comprises governor body (1) and end cap assembly parts (2), and end cap assembly parts (2) is connected through screw with governor body (1); Be provided with rotating speed hydraulic control valve (3) in the governor body (1), one end of rotating speed hydraulic control valve (3) is connected with spring (5) through spring seat (4), the other end of spring (5) is connected with guide rod (6) through spring seat (4), the other end of guide rod (6) is connected with adjustment screw rod (7), adjust screw rod (7) and stretch out outside the governor body (1), the adjustment screw rod (7) that exposes outside the governor body (1) is provided with locking nut (8).
- [claim 6] oil hydraulic motor rotating speed according to claim 5 hydraulic control unit, it is characterized in that: described rotating speed hydraulic control valve (3) comprises valve body (9) and spool (10), valve body (9) is through in the spool (10), valve body (9) is provided with oil guide slot (11), and spool (10) is provided with oilhole (12).
- [claim 7] oil hydraulic motor rotating speed according to claim 6 hydraulic control unit is characterized in that: be provided with rotating speed hydraulic control valve gap (30) and control guiding valve (13) in the described end cap assembly parts (2).
- [claim 8] oil hydraulic motor rotating speed according to claim 7 hydraulic control unit is characterized in that: described control guiding valve (13) is provided with oil groove (14).
- [claim 9] oil hydraulic motor rotating speed according to claim 8 hydraulic control unit, it is characterized in that: be provided with and the corresponding oil circuit of hydraulic principle (15) in described governor body (1) and the end cap assembly parts (2), the port of oil circuit (15) is respectively equipped with forward pilot pressure interface (16) and reverse pilot pressure interface (17), and forward pilot pressure interface (16) and reverse pilot pressure interface (17) are provided with lock nut (18).
- [claim 10] oil hydraulic motor rotating speed according to claim 9 hydraulic control unit is characterized in that: also be provided with return opening (28) and aux. pressure hydraulic fluid port (29) on the described governor body (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007102019356A CN101398019A (en) | 2007-09-30 | 2007-09-30 | Hydraulic control method and device for rotating speed of hydraulic motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2007102019356A CN101398019A (en) | 2007-09-30 | 2007-09-30 | Hydraulic control method and device for rotating speed of hydraulic motor |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101398019A true CN101398019A (en) | 2009-04-01 |
Family
ID=40516791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2007102019356A Pending CN101398019A (en) | 2007-09-30 | 2007-09-30 | Hydraulic control method and device for rotating speed of hydraulic motor |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101398019A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101871477A (en) * | 2010-06-22 | 2010-10-27 | 上海萨澳液压传动有限公司 | Intermediate-pressure control two-position variable axial plunger hydraulic motor |
CN102788062A (en) * | 2012-08-10 | 2012-11-21 | 中国船舶重工集团公司第七一九研究所 | Rotating speed regulation device used for swash plate operated hydraulic transformer |
CN102878124A (en) * | 2012-09-21 | 2013-01-16 | 中国船舶重工集团公司第七一九研究所 | Load-sensitive hydraulic transformer |
CN105134388A (en) * | 2015-08-17 | 2015-12-09 | 北汽福田汽车股份有限公司 | Dual-purpose fuel engine, control method and system thereof, and automobile |
CN107202047A (en) * | 2017-06-05 | 2017-09-26 | 中国北方车辆研究所 | A kind of conjuncted pump motor swash plate swinging angle control mechanism |
CN108266421A (en) * | 2017-12-08 | 2018-07-10 | 中国航空工业集团公司成都飞机设计研究所 | A kind of big load high-speed hydraulic motor swash plate adjusting method for aircraft |
CN108756726A (en) * | 2018-04-23 | 2018-11-06 | 上海中联重科桩工机械有限公司 | Rotary digging drill power head control device |
CN110043526A (en) * | 2019-04-26 | 2019-07-23 | 燕山大学 | A kind of Direct Action Type overflow motor and its hydraulic pressure circuit |
CN112555206A (en) * | 2020-12-15 | 2021-03-26 | 潍柴动力股份有限公司 | Hydraulic control system and silage harvester |
-
2007
- 2007-09-30 CN CNA2007102019356A patent/CN101398019A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101871477A (en) * | 2010-06-22 | 2010-10-27 | 上海萨澳液压传动有限公司 | Intermediate-pressure control two-position variable axial plunger hydraulic motor |
CN101871477B (en) * | 2010-06-22 | 2012-08-29 | 上海萨澳液压传动有限公司 | Intermediate-pressure control two-position variable axial plunger hydraulic motor |
CN102788062A (en) * | 2012-08-10 | 2012-11-21 | 中国船舶重工集团公司第七一九研究所 | Rotating speed regulation device used for swash plate operated hydraulic transformer |
CN102878124A (en) * | 2012-09-21 | 2013-01-16 | 中国船舶重工集团公司第七一九研究所 | Load-sensitive hydraulic transformer |
CN105134388A (en) * | 2015-08-17 | 2015-12-09 | 北汽福田汽车股份有限公司 | Dual-purpose fuel engine, control method and system thereof, and automobile |
CN107202047A (en) * | 2017-06-05 | 2017-09-26 | 中国北方车辆研究所 | A kind of conjuncted pump motor swash plate swinging angle control mechanism |
CN108266421A (en) * | 2017-12-08 | 2018-07-10 | 中国航空工业集团公司成都飞机设计研究所 | A kind of big load high-speed hydraulic motor swash plate adjusting method for aircraft |
CN108756726A (en) * | 2018-04-23 | 2018-11-06 | 上海中联重科桩工机械有限公司 | Rotary digging drill power head control device |
CN108756726B (en) * | 2018-04-23 | 2020-01-10 | 上海中联重科桩工机械有限公司 | Power head control device of rotary drilling rig |
CN110043526A (en) * | 2019-04-26 | 2019-07-23 | 燕山大学 | A kind of Direct Action Type overflow motor and its hydraulic pressure circuit |
CN112555206A (en) * | 2020-12-15 | 2021-03-26 | 潍柴动力股份有限公司 | Hydraulic control system and silage harvester |
CN112555206B (en) * | 2020-12-15 | 2023-01-06 | 潍柴动力股份有限公司 | Hydraulic control system and silage harvester |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101398019A (en) | Hydraulic control method and device for rotating speed of hydraulic motor | |
CN101871477B (en) | Intermediate-pressure control two-position variable axial plunger hydraulic motor | |
CN101535687B (en) | Travel control device for hydraulic traveling vehicle | |
JPH0217702B2 (en) | ||
US9016053B2 (en) | Device for varying the swept volumes of a first hydraulic machine and a second hydraulic machine | |
CN101788052B (en) | Motor driven CVT (continuously variable transmission) electro-hydraulic control system | |
CN213088564U (en) | Hydraulic system of hybrid transmission | |
CN103174826B (en) | Proportional control type continuously variable transmission flow active control system | |
CN201588926U (en) | Motor-driven electrohydraulic control system of continuously variable transmission | |
CN104088926A (en) | Clutch hydraulic control system of single-planet-row convergence hydraulic mechanical continuously variable transmission | |
CN201092985Y (en) | Hydraulic motor rotating speed hydraulic control device | |
JPH08511325A (en) | Hydrostatic propulsion drive | |
CN110425276B (en) | High-speed switch valve pilot control's buncher electricity liquid control system | |
US5072814A (en) | Hydraulically operable transmission | |
CN103591282A (en) | Engineering machinery walking speed controlling and switching valve | |
CN106402063A (en) | Walking control valve assembly, hydraulic closed type walking system and overhead operation platform car | |
CN212177378U (en) | Variable flow steering pump for commercial vehicle and engineering machinery | |
CN1405031A (en) | Novel forklift-walking speed-regulating device | |
CA1089326A (en) | Underspeed actuator for a hydrostatic transmission having a shunt valve | |
CN103174816B (en) | A kind of pressure differential control type stepless speed variator flow active control system | |
CN2869487Y (en) | Feedback fluid-controlled automatic pressure regulating valve | |
JP2598994Y2 (en) | Variable displacement oil pump | |
EP0732528A1 (en) | Automotive drive control for hydrostatic transmission | |
CN112249907A (en) | Plunger pump composite control regulator and hoisting machinery | |
US4332531A (en) | Variable displacement pump with torque limiting control |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: CNAC LIYUAN HYDRAULIC CO., LTD. Free format text: FORMER OWNER: GUIZHOU LIYUAN HYDRAULIC CO., LTD. Effective date: 20091016 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20091016 Address after: Box 99, Guiyang, Guizhou Province, China: 550018 Applicant after: Liyuan Hydraulic Co., Ltd. of Aviation Industry Corporation of China Address before: Box 99, Guiyang, Guizhou Province, China: 550018 Applicant before: Guizhou Liyuan Hydraulic Co., Ltd. |
|
C12 | Rejection of a patent application after its publication | ||
RJ01 | Rejection of invention patent application after publication |
Open date: 20090401 |