CN208431159U - Double acting oil pump - Google Patents
Double acting oil pump Download PDFInfo
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- CN208431159U CN208431159U CN201820818380.3U CN201820818380U CN208431159U CN 208431159 U CN208431159 U CN 208431159U CN 201820818380 U CN201820818380 U CN 201820818380U CN 208431159 U CN208431159 U CN 208431159U
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Abstract
The utility model belongs to Hydraulic Elements, in particular to a kind of double acting oil pump.It is provided with axis (1) at pump housing bearing hole (3-5) and Front Cover Bearing hole (4-1), is equipped with rotor cotter way one (1-7) on cydariform face (1-1), the rotary center of internal rotor one is one (O of rotary center1), two (O of outer rotor Yi rotary center Wei rotary center2) , rotary center Yi is Yu have one (e of eccentricity between rotary center two1), the flat hole of internal rotor two and axis hole are equipped on internal rotor two (8), the rotary center of internal rotor two (8) is rotary center three, and the rotary center of outer rotor two (9) is four (O of rotary center4) four (O of , rotary center San Yu rotary center4) between have two (e of eccentricity2) one (O of , rotary center1) Yu three (O of rotary center3) identical.High and low pressure oil pump is combined into one by double acting oil pump, and oil pump provides the hydraulic oil of different pressures and different flow according to demand by two independent oil-discharging cavities for gear box hydraulic system.
Description
Technical field
The utility model belongs to Hydraulic Elements, in particular to a kind of double acting oil pump.
Background technique
Currently, many automatic speed variator hydraulic systems are generally respectively high-pressure hydraulic and low-pressure hydraulic system, high pressure
Flow rate of hydraulic system is small, pressure is high, provides power for gear box actuator.Low-pressure hydraulic flow system flow is big, pressure is low, is used for
Gearbox heat radiation lubricating.And high and low hydraulic system is respectively that high and low pressure hydraulic system provides power by two independent oil pumps,
But this settling mode manufacturing cost is high, occupied space is big, and power consumption is also big.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned technical deficiency, provide it is a kind of simple and compact for structure, can dual output,
The double acting oil pump of different pressures and different flow can be provided according to demand.
The utility model solve technical problem the technical solution adopted is that: double acting oil pump include the pump housing, front cover, rear cover,
Bolt, sealing ring, its main feature is that be provided with axis in pump housing bearing hole and Front Cover Bearing hole, be respectively equipped on axis cydariform face, collar,
Axle journal, axis be flat, spline and oil hole, and rotor cotter way one is equipped on cydariform face, is set at the cydariform face of axis and rotor cotter way one
Internal rotor one, on internal rotor one be equipped with rotor cotter way two, rotor cotter way two is corresponding with rotor cotter way one, rotor cotter way one and
Rotor cotter way two is provided with rotor pin, and cydariform face is matched with the inner hole of internal rotor one, uses rotor pin between axis and internal rotor one
It limits, suit outer rotor one outside internal rotor one, internal rotor Yi rotary center Wei rotary center one, in outer rotor Yi rotary
Xin Wei rotary center Er , rotary center Yi is Yu have eccentricity one, between internal rotor one and outer rotor one between rotary center two
It being connected by meshing transmission, the flat place of axle journal and axis of axis is set with internal rotor two, the flat hole of internal rotor two and axis hole are equipped on internal rotor two,
Axle journal is matched with the axis hole of internal rotor two, and axis is flat to be matched with the flat hole of internal rotor two, and the outside of internal rotor two is set with outer rotor
Two, internal rotor Er rotary center Wei rotary center three, outer rotor Er rotary center Wei rotary center Si , rotary center three with
There is eccentricity two, rotary center one is identical as rotary center three, between internal rotor two and outer rotor two between rotary center four
It is connected by meshing transmission.
The beneficial effects of the utility model are: high and low pressure oil pump is combined into one by double acting oil pump, oil pump is only by two
Vertical oil-discharging cavity provides the hydraulic oil of different pressures and different flow according to demand for gear box hydraulic system, to meet speed changer
Work requirements, have the advantages that it is compact-sized, facilitate arrangement, be high-efficient, be conducive to the energy-saving and emission-reduction of vehicle.
Detailed description of the invention
It is illustrated below in conjunction with attached drawing with embodiment.
Fig. 1 is double acting oil pump external structure.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the B-B cross-sectional view of Fig. 1.
Fig. 4 is two structural front view of internal rotor in Fig. 2.
Fig. 5 is the C-C cross-sectional view of Fig. 4.
Fig. 6 is the structural front view of Fig. 1 axis.
Fig. 7 is the D-D cross-sectional view of Fig. 6.
Fig. 8 is the E-E cross-sectional view of Fig. 1.
Fig. 9 is the F-F cross-sectional view of Fig. 1.
In figure, 1- axis；1-1- cydariform face；1-2- collar；1-3- axle journal；1-4- axis is flat；1-5- spline；1-6- oil hole；
1-7- rotor cotter way one；2- positioning pin one；The 3- pump housing；3-1- oil inlet one；3-2- oil outlet one；3-3- oil inlet two；3-4-
Oil outlet two；3-5- pump housing bearing hole；3-6- oil suction window one；3-7- pressure oil window one；3-8- oil suction window two；3-9- pressure oil window two；
4- front cover；4-1- Front Cover Bearing hole；5- rear cover；6- internal rotor one；6-1- rotor cotter way two；7- outer rotor one；8- internal rotor two；
The flat hole of 8-1- internal rotor two；8-2- axis hole；9- outer rotor two；10- rotor pin；11- positioning pin two；12- sealing ring；13- bolt；
O1Rotary center one；O2Rotary center two；O3Rotary center three；O4Rotary center four；e1Eccentricity one；e2Eccentricity
Two.
Specific embodiment
Referring to attached drawing 1~9, axis 1 is installed in Front Cover Bearing hole 4-1 and pump housing bearing hole 3-5, on the axis 1 of double acting oil pump
It is respectively equipped with cydariform face 1-1, collar 1-2, axle journal 1-3, the flat 1-4 of axis, spline 1-5, oil hole 1-6, cydariform face 1-1, which is equipped with, to be turned
Sub- one 1-7 of cotter way is respectively equipped with one 3-1 of oil inlet, one 3-2 of oil outlet, two 3-3 of oil inlet, two 3-4 of oil outlet, pump on the pump housing 3
Body bearing hole 3-5, one 3-6 of oil suction window, one 3-7 of pressure oil window, two 3-8 of oil suction window, two 3-9 of pressure oil window, front cover 4 are equipped with front cover axis
Bearing bore 4-1, internal rotor 1 are equipped with two 6-1 of rotor cotter way, and two 6-1 of rotor cotter way is corresponding with one 1-7 of rotor cotter way, and interior turn
Two flat hole 8-1 and axis hole 8-2 of internal rotor is respectively equipped on son 28.Front cover 4, the pump housing 3 are connected with bolt 13 is fixed between rear cover 5
It connects, is limited between front cover 4 and the pump housing 3 with positioning pin 2 11, limited between the pump housing 3 and rear cover 5 with positioning pin 1, rear cover 5 and pump
It is sealed with sealing ring 12 between body 3, between the pump housing 3 and front cover 4.It is set at one 1-7 of cydariform face 1-1 and rotor cotter way of axis 1
Internal rotor 1, collar 1-2 are used for the axial limiting of internal rotor 1, and one 1-7 of rotor cotter way and two 6-1 of rotor cotter way, which are provided with, to be turned
Sub- pin 10, cydariform face 1-1 are matched with the inner hole of internal rotor 1, are limited between axis 1 and internal rotor 1 with rotor pin 10.Interior turn
The outside of son 1 is set with outer rotor 1, one 6 rotary center Wei rotary center of internal rotor, one O1, in one 7 rotary of outer rotor
Two O of Xin Wei rotary center2One O of , rotary center1Yu two O of rotary center2Between have one e of eccentricity1, internal rotor 1 and outer turn
It is connected by meshing transmission between son 1.Internal rotor 28, axle journal 1-3 and internal rotor 28 are set at the 1 axle journal 1-3 and the flat 1-4 of axis of axis
Axis hole 8-2 match, the flat 1-4 of axis is matched with the flat hole 8-1 of internal rotor two of internal rotor 28, outside the outer surface cover of internal rotor 28
Rotor 29,28 rotary center Wei rotary center of internal rotor, three O3, 29 rotary center Wei rotary center of outer rotor, four O4, rotation
Turn three O of center3Yu four O of rotary center4Between have two e of eccentricity2One O of , rotary center1Yu three O of rotary center3It is identical, interior turn
It is connected by meshing transmission between son 28 and outer rotor 29.
The working principle of double acting oil pump is: when work, input torque drives internal rotor 1 through rotor pin 10 by axis 1
Rotation, the engaged transmission of internal rotor 1 drive outer rotor 1 to rotate, rotation direction as indicated with an arrow, internal rotor 1, outer rotor one
7, several closing chambers are formed between the pump housing 3 and front cover 4, with one 6 Wei Rao rotary center of internal rotor, one O1Rotationally clockwise,
One 7 Wei Rao rotary center of outer rotor, two O2Friction speed rotation in the same direction.With rotation, left side closing chamber is become larger, and oil liquid passes through suction
One 3-1 of hydraulic fluid port is inhaled into closing chamber through one 3-6 of oil suction window.When closing chamber goes to right side, volume can be gradually become smaller, and oil liquid is passed through
One 3-7 of pressure oil window and one 3-2 of oil outlet discharge realizes that it is defeated to complete oil liquid for one 3-1 oil suction of inlet port, one 3-2 oil extraction of oil outlet
It send.Meanwhile input torque drives internal rotor 28 to rotate by the flat 1-4 of axis of axis 1 and the flat hole 8-1 of the internal rotor of internal rotor 28,
The engaged transmission of internal rotor 28 drives outer rotor 29 to rotate, and outer rotor 29, the pump housing 3 form several closing chambers between rear cover 5.With
28 Wei Rao rotary center of internal rotor, three O3Rotationally clockwise, 29 Wei Rao rotary center of outer rotor, four O4Friction speed rotation in the same direction
Turn.Why friction speed in the same direction rotates between internal rotor 1 and outer rotor 1, between internal rotor 28 and outer rotor 29, is exactly outer
Rotor 1 is than more than 1 teeth of internal rotor, and outer rotor 29 is similarly than more than 28 teeth of internal rotor.With rotation, left side
Closing chamber volume becomes larger, and oil liquid is inhaled into closing chamber through two 3-8 of oil suction window by two 3-3 of inlet port.When closing chamber is gone to
When right side, volume can be gradually become smaller, and oil liquid is discharged through two 3-9 of pressure oil window and two 3-4 of oil outlet, realizes that two 3-3 of inlet port inhales
Oil liquid conveying is completed in oil, two 3-4 oil extraction of oil outlet.Two group rotors are driven by axis 1 simultaneously, internal rotor 1 and outer rotor 28 it
Between, revolving speed is identical between outer rotor 1 and outer rotor 29.Internal rotor 1 and one 7 discharge capacity of outer rotor are big, internal rotor 28 and outer
29 discharge capacity of rotor is small, so one 3-2 of oil outlet output high-volume hydraulic oil may be implemented when work, and two 3-4 of oil outlet is exported
Small flow high pressure oil.
Claims (4)
1. a kind of double acting oil pump, including the pump housing (3), front cover (4), rear cover (5), bolt (13), sealing ring (12), feature exists
It is provided with axis (1) at pump housing bearing hole (3-5) and Front Cover Bearing hole (4-1), cydariform face (1-1), axis is respectively equipped on axis (1)
Ring (1-2), axle journal (1-3), axis flat (1-4), spline (1-5) and oil hole (1-6) are equipped with rotor pin on cydariform face (1-1)
Slot one (1-7) is set with internal rotor one (6) at the cydariform face (1-1) of axis (1) and rotor cotter way one (1-7), in internal rotor one (6)
It is equipped with rotor cotter way two (6-1), rotor cotter way one (1-7) and rotor cotter way two (6-1) are provided with rotor pin (10), internal rotor
Outer rotor one (7) are set with outside one (6), (6) rotary center Wei rotary center, the one (O of internal rotor one1), outer rotor one (7)
Two (O of rotary center Wei rotary center2) one (O of , rotary center1) Yu two (O of rotary center2) between have one (e of eccentricity1), it is interior
It is connected by meshing transmission between rotor one (6) and outer rotor one (7), turns in suit at the axle journal (1-3) and axis flat (1-4) of axis (1)
Sub two (8), are equipped with two flat hole (8-1) of internal rotor and axis hole (8-2) on internal rotor two (8), and the outside of internal rotor two (8) is set with
Outer rotor two (9), (8) rotary center Wei rotary center, the three (O of internal rotor two3), (the 9) rotary center Wei rotaries of outer rotor two
Four (O of center4) three (O of , rotary center3) Yu four (O of rotary center4) between have two (e of eccentricity2) one (O of , rotary center1) with
Three (O of rotary center3) identical, it is connected by meshing transmission between internal rotor two (8) and outer rotor two (9).
2. double acting oil pump according to claim 1, which is characterized in that rotor cotter way two (6-1) and one (1- of rotor cotter way
7) corresponding.
3. double acting oil pump according to claim 1, which is characterized in that the inner hole of cydariform face (1-1) and internal rotor one (6)
It matches, is limited between axis (1) and internal rotor one (6) with rotor pin (10).
4. double acting oil pump according to claim 1, which is characterized in that the axis hole of axle journal (1-3) and internal rotor two (8)
(8-2) is matched, and axis flat (1-4) is matched with two flat hole (8-1) of internal rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818380.3U CN208431159U (en) | 2018-05-30 | 2018-05-30 | Double acting oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818380.3U CN208431159U (en) | 2018-05-30 | 2018-05-30 | Double acting oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208431159U true CN208431159U (en) | 2019-01-25 |
Family
ID=65100903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820818380.3U Active CN208431159U (en) | 2018-05-30 | 2018-05-30 | Double acting oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208431159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513285A (en) * | 2019-08-28 | 2019-11-29 | 西安法士特汽车传动有限公司 | A kind of double-united oil pump |
-
2018
- 2018-05-30 CN CN201820818380.3U patent/CN208431159U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513285A (en) * | 2019-08-28 | 2019-11-29 | 西安法士特汽车传动有限公司 | A kind of double-united oil pump |
| CN110513285B (en) * | 2019-08-28 | 2021-12-07 | 西安法士特汽车传动有限公司 | Duplex oil pump |
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