CN103032309A - Hydraulic pump device - Google Patents
Hydraulic pump device Download PDFInfo
- Publication number
- CN103032309A CN103032309A CN 201210365184 CN201210365184A CN103032309A CN 103032309 A CN103032309 A CN 103032309A CN 201210365184 CN201210365184 CN 201210365184 CN 201210365184 A CN201210365184 A CN 201210365184A CN 103032309 A CN103032309 A CN 103032309A
- Authority
- CN
- China
- Prior art keywords
- pump
- motor
- live axle
- gear
- moment
- 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
Images
Landscapes
- Structure Of Transmissions (AREA)
- Control Of Transmission Device (AREA)
- Rotary Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a hydraulic pump device. The following components are disposed in pump assembling space of a pump housing: a driving shaft connected with a motor; a pump disposed at the periphery of the driving shaft; and a motor stator and a motor rotor disposed at the periphery of the pump and forming an electric motor. Among the driving shaft, the pump, and the motor rotor of the electric motor, a planetary gear mechanism is disposed for connection. A one-way clutch mechanism is disposed between the pump and the driving shaft. The one-way clutch mechanism delivers torque generated by rotation of the driving shaft in one direction to the pump, and cuts off torque in an opposite direction. The pump is driven by at least one torque delivery of the torque delivery from the driving shaft through the one-way clutch mechanism, and the torque delivery from the electric motor through the planetary gear mechanism.
Description
Technical field
The present invention relates to hydraulic pumping unit.
Background technique
In the past, known following technology namely, when the action of the motor of vehicle, in order to supply with the oil be used to lubricated, the action of carrying out various mechanisms, control etc., set pump case for the assembling oil hydraulic pump in automatic transmission.
The known vehicle that is equipped with idling system, when vehicle temporarily stopped, this idling system temporarily stopped motor.
In the above-mentioned vehicle that is equipped with idling system, owing to temporarily stop (idle stop) of oil hydraulic pump along with motor stops, so can't supply with hydraulic pressure to the clutch mechanism in the automatic transmission etc.
Therefore, in being equipped with the vehicle of idling system, the clutch mechanism of the outer installment that is known in automatic transmission in the automatic transmission etc. supplied with the motor-drive pump of hydraulic pressure.
Yet, in the different vehicle of various forms, there is the situation be difficult to guarantee arrange the space of motor-drive pump, at this moment, can't adopt idling system.
In addition, in the past, for example, as TOHKEMY 2009-191645 communique was disclosed, hydraulic pump drive system had oil hydraulic pump, planetary gears and electric motor.Above-mentioned oil hydraulic pump is discharged working oil to motor and hydraulic operation equipment.Above-mentioned planetary gears is connected with the live axle that is used for the driving oil hydraulic pump, and is connected with motor via main shaft.Above-mentioned electric motor is connected with planetary gears via output shaft.
In the disclosed hydraulic pump drive system of TOHKEMY 2009-191645 communique, can utilize the rotation of the output shaft of electric motor to make the rotation speed change of the live axle of the oil hydraulic pump that is connected with motor via planetary gears.Therefore, adjust by the discharge capacity to the working oil of being discharged by oil hydraulic pump, can suppress oil hydraulic pump and too much discharge the work oil condition.In addition, drive oil hydraulic pump owing to can only utilize electric motor via planetary gears, thereby even in the situation of for example engine stop, also can supply with hydraulic pressure to hydraulic operation equipment.
Yet, in the TOHKEMY 2009-191645 communique, be difficult to assembling electric motor and planetary gears in the pump case of automatic transmission.
Summary of the invention
One of purpose of the present invention is to provide following hydraulic pumping unit, that is, and easily assemble pump and electric motor in the pump assembling space of pump case.
Be characterised in that on the formation of the hydraulic pumping unit of a mode of the present invention, in the pump assembling space of pump case, be respectively arranged with: live axle, it is connected with motor; Pump, it is equipped on the periphery of this live axle; And motor stator and motor rotor, they are disposed at the periphery of this pump, and consist of electric motor,
Between above-mentioned live axle, said pump, said motor rotor three, set planetary gears and link above-mentioned three, between said pump and above-mentioned live axle, set one-way clutch mechanism, the moment of torsion that this one-way clutch mechanism is caused by direction rotation of above-mentioned driving axial to the said pump transmission and disconnect round about moment of torsion transmission, said pump are subject to that following moment of torsion at least one moment of torsion in transmitting transmits and driven: from the moment of torsion transmission of above-mentioned live axle via above-mentioned one-way clutch mechanism; And from the moment of torsion transmission of above-mentioned electric motor via above-mentioned planetary gears.
Description of drawings
By the detailed description of preferred implementation of the present invention being carried out referring to accompanying drawing, further feature of the present invention, advantage can become clearer, and wherein, reference character represents key element of the present invention, wherein:
Fig. 1 is the longitudinal section of the hydraulic pumping unit of expression embodiments of the invention.
Fig. 2 is the longitudinal section that pump case that Watch with magnifier is shown in the hydraulic pumping unit of embodiments of the invention is assembled with the state of pump and electric motor.
Fig. 3 is the sectional elevation along the pump of the III-III line of Fig. 2.
Fig. 4 be expression along the intercommunicating pore of the plectane section of the motor rotor of the arrow IV of Fig. 2 to view.
Fig. 5 is the explanatory drawing of relation of rotating speed (rotating speed of unit time) of internal gear of live axle, motor rotor, the pump of the hydraulic pumping unit of expression embodiments of the invention.
Fig. 6 is the explanatory drawing of discharge the relationship between quantities of rotating speed and oil of live axle (motor) of the hydraulic pumping unit of expression embodiments of the invention.
Embodiment
Describe being used for implementing mode of the present invention according to embodiment.
With reference to the accompanying drawings, the hydraulic pumping unit of embodiments of the invention described.
As shown in Figure 1, in the hydraulic pumping unit of the fluid torque converter 1 that is assembled in automatic transmission, pump case 10 is utilized bolt and is fixed in the shell (not shown) of automatic transmission.Pump case 10 constitute utilize bolt (not shown) with about first, second two housings 11,12 of cutting apart combine.First, second two housings 11,12, form pump assembling space 13.More specifically, pump assembling space 13 is by the first housing 11 and central parts the second housing 12 opposed internal faces forming with the first housing 11 opposed internal faces to the axial recessed assembling recess that forms and the second housing 12.
In addition, at first, second two housings 11,12 opposed internal face, be formed with respectively suction port 15,17 and exhaust port 16,18.
And, being formed with flange collar 11a in the bottom surface of the assembling recess of the first housing 11, outer circumferential face and external gear wheel 46 that this flange collar 11a is embedded in the external gear 46 of pump 40 described later rotatably guide.
In addition, at the central part of the second housing 12, dispose stator main shaft 5 in the mode in the sleeve 2 of fluid torque converter 1.
As shown in Figure 2, at pump assembling space 13, be built-in with respectively sleeve 2, pump 40, motor stator 31 and the motor rotor 33 of fluid torque converter 1.Above-mentioned sleeve 2 is the live axles that are connected with motor.Said pump 40 is equipped on the periphery of above-mentioned sleeve 2.Said motor stator 31 and motor rotor 33 are disposed at the periphery of said pump 40 and consist of electric motor 30.
And, in 33 in sleeve 2, pump 40, motor rotor, be equipped with planetary gears 51.Sleeve 2, pump 40, motor rotor 33 link by planetary gears 51.
Between the end plate 43 of the internal gear 41 of sleeve 2, the pump 40 that describes in detail later, be equipped with one-way clutch mechanism 45, this one-way clutch mechanism 45 is transmitted the moment of torsion that is caused to a direction rotation by sleeve 2 and is disconnected round about moment of torsion transmission to pump 40.Pump 40 constitute be subject to following moment of torsion in transmitting at least one and driven: from the moment of torsion transmission of sleeve 2 via one-way clutch mechanism 45; And from the moment of torsion transmission of electric motor 30 via planetary gears 51.
Such as Fig. 2 and shown in Figure 3, the motor stator 31 of electric motor 30 has the outside dimension corresponding with the internal diameter size of the inner circle wall face of pump assembling space 13.Motor stator 31 forms has the length dimension almost identical with the axial length dimension of pump assembling space 13.Motor stator 31 is fixed in the inner circle wall face of pump assembling space 13 with the state that can't rotate.
Said motor stator 31 possesses core part 32a and a plurality of coil 32b.Above-mentioned a plurality of coil 32b is installed in circumferential a plurality of coil assembly departments of the inner peripheral surface that is formed at above-mentioned core part 32a.
Such as Fig. 2 and shown in Figure 4, be formed with two circular-arc intercommunicating pores 38 in the plectane section 35 of motor rotor 33, these two intercommunicating pores 38 are communicated with two suction ports 15,17 and two exhaust ports 16,18 via the pocketed oil section 48 of pump 40.
In addition, in the situation that does not form suction port 17 and exhaust port 18 on the second housing 12, need to not form intercommunicating pores 38 in the plectane section 35 of motor rotor 33.
In addition, electric motor 30 is connected with not shown control gear, and controls rotation based on the program of having set.
Such as Fig. 2 and shown in Figure 3, pump 40 be provided in the assembling recess of the first housing 11 that consists of pump assembling space 13 the bottom surface, and the plectane section 35 of motor rotor 33 between.
In addition, at the first housing 11 side ends of the inner peripheral surface of internal gear 41, be formed with to the outstanding end plate 43 of radially inner side.Between the outer circumferential face of the central part of above-mentioned end plate 43 and sleeve 2, be equipped with above-mentioned one-way clutch mechanism 45.
As shown in Figure 3, the external gear 46 of pump 40 is with the state of the center of internal gear 41 eccentric (among Fig. 3, with the large small eccentricity of offset A), rotatably be embedded in the flange collar 11a of the first housing 11.
In addition, between the internal tooth 47 of the external tooth 42 of internal gear 41 and external gear 46, be formed with pocketed oil section 48.And internal gear 41 is subject at least one in the following moment of torsion transmission and rotates: from the moment of torsion transmission of sleeve 2 via one-way clutch mechanism 45; And from the moment of torsion transmission of electric motor 30 via planetary gears 51, accompany therewith, external gear 46 is followed rotation, forms thus pumping action.
In addition, the oil discharge capacity of pump 40 is set as following discharge capacity, namely, when the rotating speed of motor (sleeve 2) is idling speed N, can guarantee the oily discharge capacity of required irreducible minimum.
In addition, such as Fig. 2 and shown in Figure 3, between the plectane section 35 of the end plate 43 of the internal gear 41 of pump 40 and motor rotor 33, be configured for taking in the accommodation space 50 of planetary gears 51.
In addition, when the number of teeth with sun gear 52 be made as Za, with the number of teeth of planetary pinion 53 be made as Zb, with the number of teeth of internal-gear 56 be made as Zc, with the output shaft of sleeve 2(motor) rotating speed be made as ω 1, when the rotating speed of motor rotor 33 is made as ω 3, pump 40 is made as with rotating speed shown in Figure 5 driven (rotation).
That is, as shown in Figure 5, when motor moves, and when the coil 32b of motor stator 31 is in non-power status, the moment of torsion of sleeve 2 transmits to the end plate 43 as the internal gear 41 of planetary carrier 55 via one-way clutch mechanism 45, and drives internal gear 41.
At this moment, the internal-gear 56 of the sun gear 52 of planetary gears 51, planetary pinion 53, motor rotor 33 does not become one with sleeve 2 with not changing intermeshing position and rotates.
Thus, the internal gear 41 of pump 40 and rotational speed omega 1 rotation of motor rotor 33 with motor.
When motor moves, by making the coil 32b energising of motor stator 31, and make motor rotor 33 with large rotational speed omega 3 rotations of the rotational speed omega 1 of ratio engine, thereby the rotating speed of the internal gear 41 of pump 40 is increased and rotate.
At this moment, the internal gear 41 of pump 40 is with the rotating speed speedup rotation of (Za ω 1+Zc ω 3)/(Za+Zc).
In addition, when engine stop, (temporarily stop (idle stop)), switch on by the coil 32b that makes motor stator 31, and make motor rotor 33 with rotational speed omega 3 rotations, thereby make internal gear 41 rotations of pump 40 via planetary gears 51.
At this moment, the internal gear 41 of pump 40 is with the rotating speed rotation of { Zc/(Za+Zc) } * ω 3.
The hydraulic pumping unit of embodiments of the invention consists of as described above.
Therefore, when motor moved, the internal gear 41 to pump 40 transmitted via one-way clutch mechanism 45 from the moment of torsion as the sleeve 2 of live axle.Thus, internal gear 41 rotations are accompanied therewith, and external gear 46 is followed rotation, thereby forms pumping action.
As shown in Figure 6, when motor moves, and when motor is in the low speed rotation zone, the situation of busy shift is arranged, thereby the oil that needs discharge quantitative change is many.
Therefore, in the low speed rotation zone of motor, switch on by the coil 32b that makes motor stator 31, and motor rotor 33 is driven, thereby make the internal gear 41 of pump 40 come the speedup rotation with the rotating speed larger than the rotating speed of sleeve 2 via planetary gears 51.
At this moment, the internal gear 41 of pump 40 can be by the restrictedly speedup rotation of unidirectional clutch mechanism 45.
Thus, in the low speed rotation zone of motor, can guarantee the oily discharge capacity of needs.
In other words, in the past, for the oil mass of need in the low speed rotation zone of motor, guaranteeing, and the discharge capacity of setting pump.Thus, pump maximizes, and, in the High Rotation Speed zone of motor, come the discharge capacity of oil of self-pumping too much.
Relative therewith, in the low speed rotation zone of motor, switch on by the coil 32b that makes motor stator 31, and motor rotor 33 is driven, the rotating speed of the internal gear 41 of pump 40 is increased.Thus, can discharge sufficiently the oil mass that needs, thereby can make pump 40 miniaturizations.
Make pump 40 miniaturizations by the outside dimension that dwindles pump 40, thereby in the pump assembling space 13 of pump case 10, can easily assemble electric motor 30(motor stator 31 and motor rotor 33 in the periphery of pump 40).
In addition, in the High Rotation Speed zone of motor, make pump 40 miniaturizations, and can correspondingly suppress too much oily discharge capacity.At this moment, can keep the coil 32b of motor stator 31 is that non-power status stops electric motor 30.
When motor temporarily stops (idle stop), by making the coil 32b energising of motor stator 31, and motor rotor 33 is driven, can be via planetary gears 51 driven pump 40.
Thus, when motor temporarily stops (idle stop), can discharge needed oil mass to the clutch mechanism in the automatic transmission etc.
At this moment, the internal gear 41 of pump 40 can restrictedly not rotated by unidirectional clutch mechanism 45.
In addition, compare when moving with motor, when motor temporarily stopped (idle stop), the oil mass that needs was few, hydraulic pressure is low.
In addition, among this embodiment, the oil discharge capacity of pump 40 is set as following discharge capacity, namely, when the rotating speed of motor be idling speed N and pump 40 by from the moment of torsion transmission of sleeve 2 and when driven, can guarantee the oily discharge capacity of required irreducible minimum.
Thus, even produce in the bad situation of action at electric motor 30, also can utilize by from the moment of torsion transmission of sleeve 2 and the oily discharge capacity of driven pump 40 is carried out travelling of vehicle.
In addition, among this embodiment, in the accommodation space 50 that can between the plectane section 35 of the end plate 43 of the internal gear 41 of pump 40 and motor rotor 33, consist of, take in planetary gears 51.
In addition, among this embodiment, the end plate 43 of the internal gear 41 of pump 40 is as planetary carrier 55 and the performance function, namely, a plurality of planetary pinions 53 of planetary gears 51 are supported a plurality of planetary pinions 53 centered by central shaft 54 rotatably.
In addition, the support unit that supports as the internal-gear 56 to planetary gears 51 of the plectane section 35 of motor rotor 33 and bring into play function.
Thus, can the accommodation space 50 between the plectane section 35 of the end plate 43 of the internal gear 41 of pump 40 and motor rotor 33 in, rationally set and take in planetary gears 51.
In addition, the present invention is not limited to above-described embodiment, in the scope that does not break away from purport of the present invention, can implement in every way.
Claims (4)
1. a hydraulic pumping unit is characterized in that, is respectively arranged with in the pump assembling space of pump case:
Live axle, it is connected with motor;
Pump, it is equipped on the periphery of described live axle; And
Motor stator and motor rotor, they are disposed at the periphery of described pump, and consist of electric motor,
Between described live axle, described pump, described motor rotor, set planetary gears, link described live axle, described pump, described motor rotor,
Between described pump and described live axle, set one-way clutch mechanism, the moment of torsion that this one-way clutch mechanism is caused by direction rotation of described driving axial to described pump transmission and disconnect round about moment of torsion transmission,
Described pump constitutes and is subject to that following moment of torsion at least one moment of torsion in transmitting transmits and driven: from the moment of torsion transmission of described live axle via described one-way clutch mechanism; And from the moment of torsion transmission of described electric motor via described planetary gears.
2. hydraulic pumping unit according to claim 1 is characterized in that,
The oil discharge capacity of described pump is set as following discharge capacity, namely, when the rotating speed of motor be idling speed and described pump by when driven, guaranteeing the oily discharge capacity of required irreducible minimum from the moment of torsion transmission of live axle.
3. hydraulic pumping unit according to claim 1 and 2 is characterized in that,
Described pump is made of crescent gear pump, and this crescent gear pump has: internal gear circumferentially is formed with a plurality of external tooths along the outer circumferential face of this internal gear; And external gear, along the internal tooth of a plurality of external tooths engagements that circumferentially are formed with a plurality of and described internal gear of the inner peripheral surface of this external gear,
Be formed with to the outstanding end plate of radially inner side at the inner peripheral surface of described internal gear, between the outer circumferential face of the central part of described end plate and live axle, set one-way clutch mechanism, on the other hand,
Described motor rotor possesses: cylindrical part, along the permanent magnet that circumferentially alternately is equipped with a plurality of S utmost points, the N utmost point of the outer circumferential face of this cylindrical part; And plectane section, it forms towards the mode of the outer circumferential face of described live axle with the end inner peripheral surface from this cylindrical part, and be embedded in described live axle outside rotatably via bearing or at the outer circumferential face of the axis body that sets with the same center line of this live axle at central part
Between the plectane section of the end plate of described internal gear and described motor rotor, be configured for taking in the accommodation space of planetary gears.
4. hydraulic pumping unit according to claim 3 is characterized in that,
Described planetary gears has:
Sun gear, it is positioned at accommodation space, but and transferring power be located at the outer circumferential face of live axle;
A plurality of planetary pinions, they and described sun gear mesh;
As the end plate of the internal gear of planetary carrier, it makes described a plurality of planetary pinion can support rotatably described a plurality of planetary pinion centered by central shaft; And
Internal-gear, it has the internal tooth with described a plurality of planetary pinion engagements, and is located at integratedly the plectane section of motor rotor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011212251A JP2013072495A (en) | 2011-09-28 | 2011-09-28 | Oil pump device |
| JP2011-212251 | 2011-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032309A true CN103032309A (en) | 2013-04-10 |
Family
ID=46939632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210365184 Pending CN103032309A (en) | 2011-09-28 | 2012-09-26 | Hydraulic pump device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013072495A (en) |
| CN (1) | CN103032309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763978A (en) * | 2019-03-12 | 2019-05-17 | 北京雷神博峰信息技术有限责任公司 | A kind of hand integrated pump of vehicle mounted electric |
| EP3997340B1 (en) * | 2019-07-12 | 2024-04-24 | Parker-Hannifin Corporation | Electric motor with integrated hydraulic pump and motor controller |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101680647B1 (en) | 2015-05-06 | 2016-11-30 | 명화공업주식회사 | Tandem pump for automobile having a speed reduction |
-
2011
- 2011-09-28 JP JP2011212251A patent/JP2013072495A/en not_active Withdrawn
-
2012
- 2012-09-26 CN CN 201210365184 patent/CN103032309A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763978A (en) * | 2019-03-12 | 2019-05-17 | 北京雷神博峰信息技术有限责任公司 | A kind of hand integrated pump of vehicle mounted electric |
| EP3997340B1 (en) * | 2019-07-12 | 2024-04-24 | Parker-Hannifin Corporation | Electric motor with integrated hydraulic pump and motor controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013072495A (en) | 2013-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109790914B (en) | Vehicle drive device | |
| JP4900693B2 (en) | Hybrid drive unit | |
| JP4981152B2 (en) | Vehicle oil pump | |
| JP4918936B2 (en) | Electric pump | |
| US11207966B2 (en) | Power transmission device | |
| CN102027264B (en) | Power transmitting apparatus and power transmitting apparatus assembly method | |
| WO2012039224A1 (en) | Fluid pressure generation device and drive apparatus | |
| JP7031734B2 (en) | Vehicle drive | |
| JP2012067861A (en) | Liquid pressure generating device and driving device | |
| CN103032311A (en) | Oil pump device | |
| US11906024B2 (en) | Vehicle drive device | |
| JP2017133564A (en) | Vehicular motor drive device | |
| CN103032309A (en) | Hydraulic pump device | |
| WO2020203916A1 (en) | Vehicle drive device | |
| JP4928567B2 (en) | Car supply pump | |
| CN209976768U (en) | Oil supply device for vehicle | |
| JP2015042532A (en) | Vehicle driving device | |
| CN103032310A (en) | Hydraulic pump device | |
| JP4852895B2 (en) | Oil supply device | |
| JP4858783B2 (en) | Fluid pump and vehicle drive device | |
| JP2007055528A (en) | Oil feeder | |
| JP2017040300A (en) | Power transmission device | |
| JP2012219820A (en) | In-wheel motor drive device | |
| KR101869874B1 (en) | Gerotor pump having dual shaft drive structure and gerotor pump in which the two pairs of rotors rotate in opposite directions to each other | |
| JP2014052064A (en) | Speed reducer and motor rotating force transmission device equipped therewith |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |