CN104153958B - A kind of radial plunger pump delivery regulates uses AC servo machinery driving device - Google Patents
A kind of radial plunger pump delivery regulates uses AC servo machinery driving device Download PDFInfo
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- CN104153958B CN104153958B CN201410320271.5A CN201410320271A CN104153958B CN 104153958 B CN104153958 B CN 104153958B CN 201410320271 A CN201410320271 A CN 201410320271A CN 104153958 B CN104153958 B CN 104153958B
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- plunger pump
- radial plunger
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- radial
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Abstract
A kind of radial plunger pump delivery regulates uses AC servo machinery driving device, including axle flow distribution radial plunger pump, servomotor is fixed on radial plunger pump case by end cap, the sun gear matched in clearance of servo motor output shaft and planetary reduction gear, the planetary gear of planetary reduction gear is connected by axle sleeve and bearing pin and contiguous block, contiguous block is connected with feed screw nut, taper roll bearing is passed through outside contiguous block, deep groove ball bearing and radial plunger pump case are connected, ball-screw is connected with the swing span crossbeam of radial plunger pump, swing span crossbeam is connected with swing span, servomotor and planetary reduction gear are installed on radial plunger pump case, feed screw nut rotarily drives ball-screw horizontal motion, and then drive swing span to rotate around swinging axle, thus realizing the offset of radial plunger pump is regulated, the present invention regulates accurately, response speed is fast.
Description
Technical field
The invention belongs to radial plunger pump technical field, particularly to a kind of radial plunger pump delivery adjustment AC servo machinery driving device.
Background technology
Hydraulic technique, as an importance of modern industrial technology, is obtained for extensive use on various industrial equipments, walking machine and boats and ships, aircraft.In hydraulic system, the function of hydraulic pump is that the mechanical energy of motor or internal combustion engine prime movers converts to the pressure energy of liquid, provides pressure oil to system and drives executive component to work, belonging to Hydraulic power units.
Its version of radial plunger pump has multiple, but its common trait is each plunger is arranged on the radial direction of power transmission shaft, that is the centrage of each plunger is all perpendicular to the centrage of power transmission shaft.Variable radial-plunger pump is axle flow distribution radial plunger pump, has stator and rotor in pump, both arranged off-centre, and rotor is contained on pintle, and the circumferencial direction along rotor has multiple uniform plunger hole, and plunger can flexible motion wherein.When power transmission shaft rotor driven rotates, due to the effect of return ring Yu connecting rod so that plunger is reciprocating in rotor post consent, it is achieved the change of sealed volume.Rotor each rotation, each piston reciprocation once, completes an oil suction and oil extraction process.Hydraulic oil through pintle inner passage, is entered plunger cavity by pump housing inlet port when rotor forwards lower half to, after rotor forwards upper half boosting to, discharges from the higher-pressure region of the pintle first half through oil drain out, supplies actuator.The adjusting device of eccentricity of such pump adopts hydraulic means to regulate at present, there is adjustment inaccuracy, the problems such as response speed is slow, leakage of oil.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of radial plunger pump delivery adjustment AC servo machinery driving device, regulate accurately, response speed is fast, oil-proof.
In order to achieve the above object, technical scheme is as follows:
A kind of radial plunger pump delivery regulates uses AC servo machinery driving device, stator 17 and rotor 12 including axle flow distribution radial plunger pump, the offset of stator 17 and rotor 12 is adjustable, rotor 12 is contained on pintle 11, circumferencial direction along rotor 12 has 11 uniform plunger holes 18, plunger 13 is arranged in plunger hole 18, plunger 13 moves back and forth in plunger hole 18, stator 17 is connected with swing span 10, swing span crossbeam 8 is connected with swing span 10, stator 17, swing span 10 is provided externally with radial plunger pump case 9, servomotor 1 is fixed on radial plunger pump case 9 by end cap 15, the sun gear 2-2 matched in clearance of servomotor 1 output shaft and planetary reduction gear 2, the planetary gear 2-3 of planetary reduction gear 2 is connected by axle sleeve 2-4 and bearing pin 2-5 and contiguous block 4 end face, contiguous block 4 is connected with the feed screw nut 6 of ball-screw 7, contiguous block 4 is outside by taper roll bearing 3, deep groove ball bearing 5 and radial plunger pump case 9 are connected, taper roll bearing 3 outer ring and inner ring gear ring 2-1 and contiguous block 4 by planetary reduction gear 2 respectively positions, deep groove ball bearing 5 outer ring and inner ring are positioned by radial plunger pump case 9 and contiguous block 4 respectively, ball-screw 7 is connected with swing span crossbeam 8, feed screw nut 6 rotarily drives ball-screw 7 horizontal motion, and then drive swing span 10 to rotate around its swinging axle 16, thus realizing the offset of radial plunger pump is regulated.
Described planetary reduction gear 2 is installed on radial plunger pump case 9.
Described servomotor 1 connects with absolute encoder 1-1, absolute encoder 1-1 and computer at afterbody.
Sensor, sensor and computer are installed at the oil-out place of radial plunger pump connect.
The invention have the benefit that and driven by servomotor 1, it is possible to be accurately automatically adjusted the offset of radial plunger pump in time, it is achieved accurately controlling radial plunger pump discharge, improve the dynamic property of pump, regulate accurately, response speed is fast.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is that planetary reduction gear 2, ball-screw 7, feed screw nut 6 connect enlarged drawing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See figures.1.and.2, a kind of radial plunger pump delivery regulates uses AC servo machinery driving device, stator 17 and rotor 12 including axle flow distribution radial plunger pump, the offset of stator 17 and rotor 12 is adjustable, rotor 12 is contained on pintle 11, circumferencial direction along rotor 12 has 11 uniform plunger holes 18, plunger 13 is arranged in plunger hole 18, plunger 13 can move back and forth in plunger hole 18, stator 17 is connected with swing span 10, swing span crossbeam 8 is connected with swing span 10, stator 17, swing span 10 is provided externally with radial plunger pump case 9, servomotor 1 is fixed on radial plunger pump case 9 by end cap 15, the sun gear 2-2 of servomotor 1 output shaft and planetary reduction gear 2 is by key 14 matched in clearance, the planetary gear 2-3 of planetary reduction gear 2 is connected by axle sleeve 2-4 and bearing pin 2-5 and contiguous block 4 end face, the feed screw nut 6 of contiguous block 4 and ball-screw 7 is bolted, contiguous block 4 is outside by taper roll bearing 3, deep groove ball bearing 5 and radial plunger pump case 9 are connected, taper roll bearing 3 outer ring and inner ring gear ring 2-1 and contiguous block 4 by planetary reduction gear 2 respectively positions, deep groove ball bearing 5 outer ring and inner ring are positioned by radial plunger pump case 9 and contiguous block 4 respectively, ball-screw 7 is connected with swing span crossbeam 8, servomotor 1 and planetary reduction gear 2 are installed on radial plunger pump case 9, feed screw nut 6 rotarily drives ball-screw 7 horizontal motion, and then drive swing span 10 to rotate around swinging axle 16, thus realizing the offset of radial plunger pump is regulated.
Described servomotor 1 connects with absolute encoder 1-1, absolute encoder 1-1 and computer at afterbody, when adopting computer to carry out variable piston the automatic control of pump, it is possible to reflect the offset of radial plunger pump at any time.
Being provided with sensor, sensor and computer to connect at the oil-out place of radial plunger pump, the output situation of pump is fed back to computer by sensor in time.
The operation principle of the present invention is:
When power transmission shaft rotor driven 12 rotates, due to the effect of return ring Yu connecting rod so that plunger 13 is reciprocating in the plunger hole 18 of rotor 12, it is achieved the change of sealed volume.Rotor 12 each rotation, each plunger 13 makes a round trip, and completes an oil suction and oil extraction process.Hydraulic oil through pintle 11 inner passage, is entered plunger cavity by pump housing inlet port when rotor 12 forwards lower half to, after rotor 12 forwards upper half boosting to, discharges from the higher-pressure region of pintle 11 first half through oil drain out, supplies actuator.
Feed screw nut 6 rotarily drives ball-screw 7 horizontal motion, and then drives swing span 10 to rotate around swinging axle 16, thus realizing regulating the offset of stator 17 and rotor 12, reaches to regulate the purpose of flow.During work, the internal axial force of adjusting device of eccentricity is delivered on variable piston pump case 9 by taper roll bearing 3, and servomotor 1, by key 14 and sun gear 2-1 matched in clearance, such servomotor 1 transmission moment of torsion, is not subject to axial load.
When adopt computer carry out variable piston the automatic control of pump time, servomotor 1 at afterbody with absolute encoder 1-1, it is possible to reflect the offset of variable radial-plunger pump at any time.Being provided with sensor at oil-out place, the output situation of pump is fed back to computer by sensor in time, and the computer needs according to actual condition send signal, the offset of regulated variable radial plunger pump to servomotor 1, thus meeting the demand of actual condition.
Claims (4)
1. a radial plunger pump delivery regulates and uses AC servo machinery driving device, stator (17) and rotor (12) including axle flow distribution radial plunger pump, stator (17) and rotor (12) offset are adjustable, rotor (12) is contained on pintle (11), circumferencial direction along rotor (12) has 11 uniform plunger holes (18), plunger (13) is arranged in plunger hole (18), plunger (13) can move reciprocatingly in plunger hole (18), stator (17) is connected with swing span (10), swing span crossbeam (8) is connected with swing span (10), stator (17), swing span (10) is provided externally with radial plunger pump case (9), it is characterized in that: servomotor (1) is fixed on radial plunger pump case (9) by end cap (15), sun gear (2-2) matched in clearance of servomotor (1) output shaft and planetary reduction gear (2), the planetary gear (2-3) of planetary reduction gear (2) is connected by axle sleeve (2-4) and bearing pin (2-5) and contiguous block (4) end face, contiguous block (4) is connected with the feed screw nut (6) of ball-screw (7), contiguous block (4) is outside by taper roll bearing (3), deep groove ball bearing (5) and radial plunger pump case (9) are connected, taper roll bearing (3) outer ring and inner ring are positioned by the gear ring (2-1) of planetary reduction gear (2) and contiguous block (4) respectively, deep groove ball bearing (5) outer ring and inner ring are positioned by radial plunger pump case (9) and contiguous block (4) respectively, ball-screw (7) is connected with swing span crossbeam (8), feed screw nut (6) rotarily drives ball-screw (7) horizontal motion, and then drive swing span (10) to rotate around swinging axle (16), thus realizing the offset of radial plunger pump is regulated.
2. a kind of radial plunger pump delivery adjustment AC servo machinery driving device according to claim 1, it is characterised in that: described planetary reduction gear (2) is arranged on radial plunger pump case (9).
3. a kind of radial plunger pump delivery adjustment AC servo machinery driving device according to claim 1, it is characterized in that: described servomotor (1) connects with absolute encoder (1-1), absolute encoder (1-1) and computer at afterbody.
4. a kind of radial plunger pump delivery adjustment AC servo machinery driving device according to claim 1, it is characterised in that: sensor, sensor and computer are installed at the oil-out place of radial plunger pump and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320271.5A CN104153958B (en) | 2014-07-07 | 2014-07-07 | A kind of radial plunger pump delivery regulates uses AC servo machinery driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320271.5A CN104153958B (en) | 2014-07-07 | 2014-07-07 | A kind of radial plunger pump delivery regulates uses AC servo machinery driving device |
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| Publication Number | Publication Date |
|---|---|
| CN104153958A CN104153958A (en) | 2014-11-19 |
| CN104153958B true CN104153958B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410320271.5A Expired - Fee Related CN104153958B (en) | 2014-07-07 | 2014-07-07 | A kind of radial plunger pump delivery regulates uses AC servo machinery driving device |
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| CN106224191B (en) * | 2016-07-27 | 2018-04-17 | 西安交通大学 | A kind of radial piston variable displacement pump of floating-cup type piston shoes structure |
| CN106246488B (en) * | 2016-07-27 | 2018-04-17 | 西安交通大学 | A kind of floating-cup type radial plunger pump of the servomotor driving variable of biserial plunger |
| CN106194637B (en) * | 2016-07-27 | 2018-04-17 | 西安交通大学 | A kind of servomotor directly drives the floating-cup type radial plunger pump of variable |
| CN107489877B (en) * | 2016-11-10 | 2019-04-23 | 北汽福田汽车股份有限公司 | A kind of engine and its vane pump |
| WO2018115241A1 (en) * | 2016-12-22 | 2018-06-28 | Siemens Aktiengesellschaft | Gearbox-side motor end shield |
| CN108799045B (en) * | 2018-07-31 | 2024-05-10 | 江苏钧微动力科技有限公司 | Vector control pump |
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| CN109958595B (en) * | 2019-04-04 | 2024-04-05 | 山西平阳重工机械有限责任公司 | Manual regulation type axial flow distribution radial plunger pump |
| CN110701031A (en) * | 2019-10-09 | 2020-01-17 | 太原理工大学 | Variable mechanism of radial plunger pump for continuously and proportionally adjusting flow |
| CN113494579A (en) * | 2020-04-08 | 2021-10-12 | 绍兴吉能纳米科技有限公司 | High-thrust execution device with two ends capable of reciprocating |
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| CN1173912A (en) * | 1995-02-09 | 1998-02-18 | 罗伯特·博施有限公司 | Adjustable hydrostatic pump |
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2014
- 2014-07-07 CN CN201410320271.5A patent/CN104153958B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1173912A (en) * | 1995-02-09 | 1998-02-18 | 罗伯特·博施有限公司 | Adjustable hydrostatic pump |
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| CN104153958A (en) | 2014-11-19 |
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Granted publication date: 20160629 Termination date: 20190707 |