CN2937546Y - Hydraulic motor axial plunger pump - Google Patents

Hydraulic motor axial plunger pump Download PDF

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Publication number
CN2937546Y
CN2937546Y CNU2006200796252U CN200620079625U CN2937546Y CN 2937546 Y CN2937546 Y CN 2937546Y CN U2006200796252 U CNU2006200796252 U CN U2006200796252U CN 200620079625 U CN200620079625 U CN 200620079625U CN 2937546 Y CN2937546 Y CN 2937546Y
Authority
CN
China
Prior art keywords
pump
cylinder body
motor
pump cover
rotor
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.)
Expired - Fee Related
Application number
CNU2006200796252U
Other languages
Chinese (zh)
Inventor
冀宏
胡启辉
王峥嵘
张玮
魏列江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lanzhou University of Technology
Original Assignee
Lanzhou University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lanzhou University of Technology filed Critical Lanzhou University of Technology
Priority to CNU2006200796252U priority Critical patent/CN2937546Y/en
Application granted granted Critical
Publication of CN2937546Y publication Critical patent/CN2937546Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hydraulic motor axial piston pump. The goal is to use the motor winding directly drive the cylinder body that integrated with the motor rotor, to transfer the electric energy directly into the hydraulic energy to put out, the motor stator 8 is arranged inside pump shell 5, the motor winding 7 is arranged inside the motor stator 8, a motor rotor 20 is arranged inside the motor stator 8, motor conducting bars 10 are equally distributed in the motor rotor 20, an end link 9 is on each of the two sides of the end, the cylinder body 12 is arranged in the internal hole of the motor rotor 20, an oil inlet 18a is arranged on the right pump cover 18, an oil outlet 1a is opened on the left pump covered 1, a plurality of axial grooves 5a are equally distributed on the inner surface of the bump shell 5, assignment disc 11 is arranged between the left pump cover 1 and the cylinder body 12, a plurality of plungers 13 are equally distributed in the cylinder body 12, the plunger 13 is kept tightly close to the inclined plane 18b of the right pump cover 18 through a slipper 15, a back swing disc 14, a spheric hinge 16, and a back swing spring 19.

Description

A kind of hydraulic electric motor axial piston pump
Technical field
The utility model relates to axial piston pump, relates in particular to hydraulic engine plunger pump.
Background technique
Axial piston pump is a kind of high-pressure service pump type of oil hydraulic pump, has to seal reliable, volumetric efficiency advantages of higher, has therefore obtained to use widely.At present, plunger pump is as a Hydraulic power units independently, needing to connect to form motor-hydraulic pump unit by its overhanging pump shaft and independently motor or internal-combustion engine forms hydraulic power unit and carries out work, this connection needs devices such as shaft joint, pump bracket, because independently the motor volume is bigger, add annexes such as shaft joint, whole hydraulic power unit volume weight is just very big.The motor that is connected with plunger pump generally all contains the fan that cools off usefulness in addition, and therefore whole hydraulic power unit noise is also very big; Because plunger pump has outrigger shaft, therefore there is the approach of external leakage simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of hydraulic engine plunger pump, directly drives the cylinder body that combines as a whole with rotor by motor windings, and making electric energy be converted into hydraulic pressure can export.
The utility model is a kind of hydraulic electric motor axial piston pump, cylinder body 12 is by clutch shaft bearing 2, second bearing 17 is supported on left pump cover 1, between the right pump cover (18), be provided with terminal box 6 on the pump case 5, motor stator 8 is installed in pump case 5, motor windings 7 is housed in the motor stator 8, there is rotor 20 motor stator 8 inside, be evenly equipped with rotor bar 10 in the rotor 20, respectively there is an end ring 9 its end face both sides, cylinder body 12 is installed in the endoporus of rotor 20, offer filler opening 18a on the right pump cover 18, offer oil outlet 1a in the pump cover 1 of a left side, be evenly equipped with a plurality of axial groove 5a on the internal surface of pump case 5, left pump cover 1, thrust plate 11 is arranged between the end face of cylinder body 12, uniform a plurality of plungers 13 in the cylinder body 12, plunger 13 is by piston shoes 15, backhaul dish 14, ball pivot 16, inclined-plane 18b on retracting spring 19 and the right pump cover 18 is adjacent to.
The utility model is compared with background technique, the useful effect that has is: this hydraulic engine plunger pump two of drive motor, axial piston pump independently element become one from structure, not only make hydraulic power unit structurally greatly simplify, saved the connection transmission device, made that hydraulic power unit is compact more, volume is little, in light weight; And directly simplified power chain, electric energy is converted into hydraulic pressure through hydraulic engine plunger pump and can exports, and has higher efficient; Hydraulic engine plunger pump does not need outer projecting shaft, sealing reliably simultaneously, does not therefore have external leakage; The present invention has adopted but mode of oil cooling, has removed the fan in the motor, has therefore removed the air power noise source, and whole thus hydraulic engine plunger pump has excellent low-noise performance.The present invention have low noise, compact structure, efficient height, cooling convenient, do not have advantage such as external leakage, can be widely used in the hydraulic system as kinetic pump, also be highly suitable for the medium transport that mustn't leak outside simultaneously.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Among the figure: 1. left pump cover, 1a. oil outlet, 2. clutch shaft bearing, 3. seal ring, 4. screw, 5. pump case, the 5a. groove, 6. terminal box, the 5b. peace is changeed the hole, 7. motor windings, 8. motor stator, 9. end ring, 10. rotor bar, 11. thrust plate, 12. cylinder bodies, 13. plungers, 14. backhaul dishes, 15. piston shoes, 16. ball pivots, 17. second bearings, 18. right pump covers, 18a. filler opening, 18b. inclined-plane, 19. retracting springs, 20. rotors.
Embodiment
As Fig. 1, shown in Figure 2, in pump case (5), motor stator 8 is installed, motor windings 7 is housed in the motor stator 8, there is rotor 20 motor stator 8 inside, be evenly equipped with rotor bar 10 in the rotor 20, respectively there is an end ring 9 its end face both sides, cylinder body 12 is installed in the endoporus of rotor 20, cylinder body 12 is by clutch shaft bearing (2), second bearing (17) is supported on left pump cover 1, between the right pump cover 18, offer filler opening 18a on the right pump cover 18, offer oil outlet 1a in the pump cover 1 of a left side, be evenly equipped with a plurality of axial groove 5a on the internal surface of pump case 5, be provided with terminal box 6 on the pump case 5, left pump cover 1, thrust plate 11 is arranged between the end face of cylinder body 12, uniform a plurality of plungers 13 in the cylinder body 12, plunger 13 is by piston shoes 15, backhaul dish 14, ball pivot 16, inclined-plane 18b on retracting spring 19 and the right pump cover 18 is adjacent to.The oil extraction window of thrust plate 11 is connected by inner flow passage in the left pump cover 1 and oil outlet 1a, and the oil sucking window of thrust plate 14 is connected by internal cavity, axial groove 5a and the filler opening 18a of pump case 5.
Working procedure of the present utility model is as follows:
Rotor 20 inside are equipped with cylinder body 12, cylinder body 12 is supported between left pump cover 1, the right pump cover 13 by clutch shaft bearing 2, second bearing 17, uniform a plurality of plungers 13 in the cylinder body 12, retracting spring 19, ball pivot 16 are arranged on the axle journal of cylinder body 12 right-hand members, and ball pivot 16 is adjacent to the inclined-plane 18b on piston shoes 15 and the right pump cover 18 by backhaul dish 14.The oil sucking window, the oil extraction window that communicate with filler opening 18a, oil outlet 1a are respectively arranged on the thrust plate 11.
When connecting power supply for motor windings 7 by terminal box 6, electromagnetic torque drive motor rotor assembly, it is rotor 20, end ring 9, rotor bar 10, cylinder body 12 rotates, cylinder body 12 drives plunger 13 and rotates, at retracting spring 19, ball pivot 16,14 effects of backhaul dish down, plunger 13 is done linear reciprocating motion in the cylinder hole of cylinder body 12, make the volume generating period variation of plunger active chamber, the working chamber volume that is connected with oil sucking window increases, when the plunger working chamber volume increases, by filler opening 18a, the inner chamber of pump case 5, axial groove 5a, oil suction is carried out in duct in the pump cover 1 of a left side, when the plunger working chamber volume reduces, by the duct in the left pump cover 1, oil outlet 1a carries out oil extraction.(each oilhole, gap) mobile fluid is taken away the heat in the hydraulic engine plunger pump in pump case 5, and the outer surface by pump case 5 dispels the heat simultaneously.

Claims (5)

1, a kind of hydraulic electric motor axial piston pump, cylinder body (12) is by clutch shaft bearing (2), second bearing (17) is supported on left pump cover (1), between the right pump cover (18), be provided with terminal box (6) on the pump case (5), it is characterized in that in pump case (5), being equipped with motor stator (8), motor windings (7) is housed in the motor stator (8), there is rotor (20) motor stator (8) inside, be evenly equipped with rotor bar (10) in the rotor (20), respectively there is an end ring (9) its end face both sides, cylinder body (12) is installed in the endoporus of rotor (20), offer filler opening (18a) on the right pump cover (18), offer oil outlet (1a) in the left side pump cover (1), be evenly equipped with a plurality of axial grooves (5a) on the internal surface of pump case (5), left side pump cover (1), thrust plate (11) is arranged between the end face of cylinder body (12), uniform a plurality of plungers (13) in the cylinder body (12), plunger (13) is by piston shoes (15), backhaul dish (14), ball pivot (16), inclined-plane (18b) on retracting spring (19) and the right pump cover (18) is adjacent to.
2, hydraulic electric motor axial piston pump according to claim 1 is characterized in that in rotor (19) endoporus cylinder body (12) being installed.
3, hydraulic electric motor axial piston pump according to claim 1 is characterized in that on the right-hand member axle journal of cylinder body (12) retracting spring (19), ball pivot (17) being housed.
4, hydraulic electric motor axial piston pump according to claim 1, the oil extraction window that it is characterized in that thrust plate (11) is connected by inner flow passage in the left pump cover (1) and oil outlet (1a), and the oil sucking window of thrust plate (14) is connected with filler opening (18a) by internal cavity, the groove (5a) of pump case (5).
5, hydraulic electric motor axial piston pump according to claim 1 is characterized in that being evenly equipped with a plurality of axial oil grooves (15a) on the internal surface of pump case (5).
CNU2006200796252U 2006-08-15 2006-08-15 Hydraulic motor axial plunger pump Expired - Fee Related CN2937546Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006200796252U CN2937546Y (en) 2006-08-15 2006-08-15 Hydraulic motor axial plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006200796252U CN2937546Y (en) 2006-08-15 2006-08-15 Hydraulic motor axial plunger pump

Publications (1)

Publication Number Publication Date
CN2937546Y true CN2937546Y (en) 2007-08-22

Family

ID=38361572

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2006200796252U Expired - Fee Related CN2937546Y (en) 2006-08-15 2006-08-15 Hydraulic motor axial plunger pump

Country Status (1)

Country Link
CN (1) CN2937546Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437975A (en) * 2013-08-23 2013-12-11 北京航空航天大学 Permanent magnet axial direction plunger type electro-hydraulic pump rotor
ITBS20120159A1 (en) * 2012-11-08 2014-05-09 Valentino Piero Sacellini COMPRESSED AIR MOTOR
CN105781925A (en) * 2016-03-07 2016-07-20 同济大学 Axial plunger hydraulic motor pump
CN106089624A (en) * 2016-06-14 2016-11-09 北京航空航天大学 A kind of electro-hydraulic pump of plunger type
CN106286195A (en) * 2016-08-10 2017-01-04 北京航空航天大学 A kind of plunger type electro-hydraulic pump motor rotor drives pump cylinder structure
CN106678011A (en) * 2017-01-22 2017-05-17 石家庄市液压有限责任公司 Hydraulic pump
CN108894940A (en) * 2018-06-28 2018-11-27 西安交通大学 A kind of aircraft steering engine sloping tray axial electric-motor pump
US10677207B2 (en) 2016-05-13 2020-06-09 Rolls-Royce Plc Axial piston pump having a piston housing having fixed field members mounted thereto and interacting with a stator surrounding the housing and configured to generate a force which urges the housing in an axial direction

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20120159A1 (en) * 2012-11-08 2014-05-09 Valentino Piero Sacellini COMPRESSED AIR MOTOR
WO2014072852A1 (en) * 2012-11-08 2014-05-15 Sacellini Valentino Pietro Compressed gas engine
CN103437975A (en) * 2013-08-23 2013-12-11 北京航空航天大学 Permanent magnet axial direction plunger type electro-hydraulic pump rotor
CN103437975B (en) * 2013-08-23 2015-11-04 北京航空航天大学 A kind of permanent magnet axial direction plunger type electro-hydraulic pump rotor
CN105781925A (en) * 2016-03-07 2016-07-20 同济大学 Axial plunger hydraulic motor pump
US10677207B2 (en) 2016-05-13 2020-06-09 Rolls-Royce Plc Axial piston pump having a piston housing having fixed field members mounted thereto and interacting with a stator surrounding the housing and configured to generate a force which urges the housing in an axial direction
CN106089624A (en) * 2016-06-14 2016-11-09 北京航空航天大学 A kind of electro-hydraulic pump of plunger type
CN106286195A (en) * 2016-08-10 2017-01-04 北京航空航天大学 A kind of plunger type electro-hydraulic pump motor rotor drives pump cylinder structure
CN106678011A (en) * 2017-01-22 2017-05-17 石家庄市液压有限责任公司 Hydraulic pump
CN108894940A (en) * 2018-06-28 2018-11-27 西安交通大学 A kind of aircraft steering engine sloping tray axial electric-motor pump

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee