CN109869621A - A kind of dual-gripper impeller pump with idle gear - Google Patents
A kind of dual-gripper impeller pump with idle gear Download PDFInfo
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- CN109869621A CN109869621A CN201910274283.1A CN201910274283A CN109869621A CN 109869621 A CN109869621 A CN 109869621A CN 201910274283 A CN201910274283 A CN 201910274283A CN 109869621 A CN109869621 A CN 109869621A
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- idle gear
- pump
- oil
- axis hole
- pump housing
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Abstract
The present invention provides a kind of dual-gripper impeller pump with idle gear, including the pump housing, pump cover, internal rotor, outer rotor, transmission shaft, transmission gear, idle gear, idler shaft；Internal rotor is fixed on the middle part of the transmission shaft, and the both ends of transmission shaft are installed in rotation on respectively in the axis hole of the pump housing and pump cover, is pressed with bushing in the axis hole of the pump housing and pump cover；Idler shaft is fixedly mounted on the pump housing, and bushing is pressed in the axis hole of idle gear, and idle gear is installed in rotation on idler shaft by the bushing；Transmission gear is fixedly mounted on one end of the transmission shaft and is meshed with the idle gear；The medial surface of pump cover is equipped with axis hole boss, and the position that internal rotor corresponds to pump cover axis hole boss is equipped with groove.Since the medial surface of pump cover is equipped with axis hole boss, the axis hole length of pump cover is thus extended, the support to transmission shaft is enhanced；Since the position that internal rotor corresponds to pump cover axis hole boss is equipped with groove, integral thickness and the rotation of internal rotor thus will not influence.
Description
Technical field
The present invention relates to a kind of engine lubrication system component, in particular to a kind of rotor-type oil pump with idle gear.
Background technique
Existing huge discharge lubricating oil pump is typically mounted in the machine oil shell below engine crankcase, passes through engine crankshaft
On gear drive transmission gear of engine oil pump, since engine crankcase is very big, the center of machine oil pump drive shaft and crankshaft away from than
It is larger, under the premise of transmission ratio determines, if simple relies on the gear diameter increased on transmission gear of engine oil pump and crankshaft
To match center away from the gear being bound to cause on crankshaft is excessive with transmission gear of engine oil pump, will increase cost in this way, in addition starts
The machine also gear very big without enough space layout diameters.So must increase between transmission gear of engine oil pump and crankshaft toothed wheel
Add an idle gear that the gear driving force on crankshaft could be transmitted on transmission gear of engine oil pump, can both reduce cost in this way,
Also engine structure can be made more compact.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of dual-gripper impeller pump with idle gear, this impeller pump is not
The support to transmission shaft can be enhanced under the premise of increasing pump cover thickness.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of dual-gripper rotor with idle gear
Pump, including the pump housing, pump cover, internal rotor, outer rotor, transmission shaft, transmission gear, idle gear, idler shaft；The pump housing is equipped with axis
Hole and rotor chamber, the pump cover are equipped with axis hole, oil inlet and oil outlet, are pressed with lining in the axis hole of the pump housing and pump cover
Set；The internal rotor is fixed on the middle part of the transmission shaft, the both ends of the transmission shaft be installed in rotation on respectively the pump housing and
In the axis hole of pump cover；The idler shaft is fixedly mounted on the pump housing, and bushing, the lazy tooth are pressed in the axis hole of the idle gear
Wheel is installed in rotation on idler shaft by bushing；The transmission gear be fixedly mounted on one end of the transmission shaft and with institute
Idle gear is stated to be meshed；The medial surface of the pump cover is equipped with axis hole boss, and the internal rotor corresponds to the position of pump cover axis hole boss
Equipped with groove.
In the above-mentioned technical solutions, since the medial surface of pump cover is equipped with axis hole boss, the axis hole of pump cover is thus extended
Length enhances the support to transmission shaft；Since the position that internal rotor corresponds to pump cover axis hole boss is equipped with groove, thus will not
Influence integral thickness and the rotation of internal rotor.
The further technical solution of the present invention is: the rotor chamber bottom of the pump housing is equipped with low-pressure tank and high pressure sump,
One end of the high pressure sump is equipped with the optimization slot of two extensions, wherein outer one optimizes slot for pressure oscillation, it is inner
One is cavitation erosion optimization slot, and cavitation erosion optimization slot is communicated with rotor oil suction maximum volume chamber, the pressure oscillation optimize slot and
Rotor oil suction maximum volume chamber is not communicated with.
Further, one end of the oil outlet also is provided with the optimization slot of two extensions in the medial surface of the pump cover,
In outer one optimize slot for pressure oscillation, inner one is cavitation erosion optimization slot.
Since cavitation erosion optimization slot is communicated to rotor oil suction maximum volume chamber (when oil suction, this chamber parital vacuum), work as suction
When oil is insufficient, the oil inside high pressure sump can be optimized slot by the cavitation erosion and supplement oil liquid to maximum volume chamber the inside, be reduced
Gas is brought into high pressure chest, optimization cavitation erosion, while can also play the effect of optimization pressure fluctuation.
Further, the high pressure sump bottom of the pump housing has inclined-plane.
Further, the pump housing and the idler shaft are equipped with the oil leab interconnected, which is used for
Lubricating oil is provided to the gap between idler shaft and idle gear bushing.
Preferably, the pump housing is equipped with the first oil leab, and the idler shaft is equipped with the second axial oil leab,
One end of second oil leab is equipped with the hole A docked with the first oil leab, and the other end, which is equipped with, carries out idle gear bushing
The hole B of lubrication, the hole A and the hole B are radial hole, the aperture of the aperture in the hole A less than the first oil leab.Due to the hole A
Aperture less than the aperture of the first oil leab, can thus play damping action, reduce the pressure of idle gear bushing lubricating oil
Fluctuation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention；
Fig. 2 is the pump body structure schematic diagram in the embodiment of the present invention；
Fig. 3 is the pump cover medial surface structural schematic diagram in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram equipped with inner and outer Rotator in the pump housing in the embodiment of the present invention；
Appended drawing reference are as follows:
1 --- the pump housing 2 --- pump cover 3 --- internal rotor
4 --- outer rotor 5 --- transmission shaft 6 --- transmission gears
7 --- idle gear 8 --- idler shaft 9 --- low-pressure tanks
10 --- high pressure sump 101 --- pressure oscillations optimize slot
102 --- cavitation erosion optimization slot 11 --- first oil leabs
12 --- the second oil leab 121 --- hole A 122 --- holes B
21 --- axis hole boss 22 --- oil inlet 23 --- oil outlets.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below with reference to embodiment and attached drawing
Bright, the content that embodiment refers to not is limitation of the invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.In description of the invention
In, the meaning of " plurality " is two or more, unless otherwise specifically defined.In the description of the present invention, it needs
Illustrate, unless otherwise specified and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be
Mechanical connection or electrical connection, the connection being also possible to inside two elements can be directly connected, and can also pass through intermediary
It is indirectly connected, for the ordinary skill in the art, can understand the concrete meaning of the term as the case may be.
As shown in Figure 1, the preferred embodiment of the present invention is: a kind of dual-gripper impeller pump with idle gear, including the pump housing 1,
Pump cover 2, internal rotor 3, outer rotor 4, transmission shaft 5, transmission gear 6, idle gear 7, idler shaft 8；On the pump housing 1 be equipped with axis hole and
Rotor chamber, the pump cover 2 are equipped with axis hole, oil inlet 22 and oil outlet 23, are pressed in the axis hole of the pump housing 1 and pump cover 2
There is bushing；The internal rotor 3 is fixed on the middle part of the transmission shaft 5, and the both ends of the transmission shaft 5 are installed in rotation on respectively
In the axis hole of the pump housing 1 and pump cover 2；The idler shaft 8 is fixedly mounted on the pump housing 1, is pressed with lining in the axis hole of the idle gear 7
Set, the idle gear 7 are installed in rotation on idler shaft 8 by bushing；The transmission gear 6 is fixedly mounted on the transmission
One end of axis 5 is simultaneously meshed with the idle gear 7；The medial surface of the pump cover 2 is equipped with axis hole boss 21, and the internal rotor 3 is right
The position of pump cover axis hole boss 21 is answered to be equipped with groove.
In the above-mentioned technical solutions, since the medial surface of pump cover 2 is equipped with axis hole boss 21, pump cover 1 is thus extended
Axis hole length enhances the support to transmission shaft；Since the position of the corresponding pump cover axis hole boss 21 of internal rotor 3 is equipped with groove, this
Sample would not influence integral thickness and the rotation of internal rotor 3.
As shown in Figure 2,3, 4, the rotor chamber bottom of the pump housing 1 is equipped with low-pressure tank 9 and high pressure sump 10, the pump housing
1 10 bottom of high pressure sump has inclined-plane, and one end of the high pressure sump 10 is equipped with the optimization slot of two extensions, wherein outer
One optimizes slot 101 for pressure oscillation, and inner one is cavitation erosion optimization slot 102, the cavitation erosion optimization slot 102 and rotor oil suction
Maximum volume chamber communicates, and the pressure oscillation optimization slot 101 is not communicated with rotor oil suction maximum volume chamber.Correspondingly, it is described go out
One end of hydraulic fluid port also is provided with the optimization slot of two extensions in the medial surface of the pump cover, wherein outer one excellent for pressure oscillation
Change slot 101, inner one is cavitation erosion optimization slot 102.Since cavitation erosion optimization slot 102 is communicated to rotor oil suction maximum volume
Chamber (when oil suction, this chamber parital vacuum), when oil suction is insufficient, the oil of 10 the inside of high pressure sump can optimize slot by the cavitation erosion
102, to supplement oil liquid inside maximum volume chamber, reduce gas and are brought into high pressure chest, optimization cavitation erosion, while can also play optimization and press
The effect of fluctuation.
As shown in Figure 1, the pump housing 1 and idler shaft 8 are equipped with the oil leab interconnected, which is used for idle pulley
Gap between 7 bushing of axis 8 and idle gear provides lubricating oil, and middle pump body is equipped with the first oil leab 11, sets on idler shaft
There is the second axial oil leab 12, one end of the second oil leab 12 is equipped with the hole A 121 docked with the first oil leab 11,
The other end is equipped with the hole B 122 being lubricated to idle gear bushing, and the hole A 121 and the hole B 122 are radial hole, the hole in the hole A 121
Aperture of the diameter less than the first oil leab 12.Since the aperture in the hole A 121 is less than the aperture of the first oil leab 11, thus can
Damping action is played, the pressure oscillation of idle gear bushing lubricating oil is reduced.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart from the technical program design under the premise of it is any obviously replace it is within the scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand the improvements of the present invention compared with the existing technology, this
Some attached drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, the element that those of ordinary skill in the art should be aware that these are omitted also may make up the contents of the present invention.
Claims (6)
1. a kind of dual-gripper impeller pump with idle gear, including the pump housing (1), pump cover (2), internal rotor (3), outer rotor (4), transmission
Axis (5), transmission gear (6), idle gear (7), idler shaft (8)；It is characterized by: the pump housing (1) is equipped with axis hole and rotor
Chamber, the pump cover (2) are equipped with axis hole, oil inlet (22) and oil outlet (23), in the axis hole of the pump housing (1) and pump cover (2)
It is pressed with bushing；The internal rotor (3) is fixed on the middle part of the transmission shaft (5), and the both ends of the transmission shaft (5) respectively can
It is rotatably mounted in the axis hole of the pump housing (1) and pump cover (2)；The idler shaft (8) is fixedly mounted on the pump housing (1), described lazy
Bushing is pressed in the axis hole of gear (7), the idle gear (7) is installed in rotation on idler shaft (8) by bushing；It is described
Transmission gear (6) is fixedly mounted on one end of the transmission shaft (5) and is meshed with the idle gear (7)；The pump cover (2)
Medial surface is equipped with axis hole boss (21), and the position of the internal rotor (3) corresponding pump cover axis hole boss (21) is equipped with groove.
2. the dual-gripper impeller pump according to claim 1 with idle gear, it is characterized in that: the rotor chamber of the pump housing (1)
Bottom is equipped with low-pressure tank (9) and high pressure sump (10), and one end of the high pressure sump (10) is equipped with the optimization slot of two extensions,
Wherein outer one optimizes slot (101) for pressure oscillation, and inner one is cavitation erosion optimization slot (102), the cavitation erosion optimization
Slot (102) is communicated with rotor oil suction maximum volume chamber, and pressure oscillation optimization slot (101) and rotor oil suction maximum volume chamber are not
It communicates.
3. single support impeller pump according to claim 2 with idle gear, it is characterized in that: one end of the oil outlet is in institute
The medial surface for stating pump cover also is provided with the optimization slot of two extensions, wherein outer one optimizes slot (101) for pressure oscillation, it is inner
One for cavitation erosion optimization slot (102).
4. the dual-gripper impeller pump according to claim 2 with idle gear, it is characterized in that: the high pressure oil of the pump housing (1)
Slot (10) bottom has inclined-plane.
5. the dual-gripper impeller pump according to claim 1 or 2 with idle gear, it is characterized in that: the pump housing (1) and described
Idler shaft (8) is equipped with the oil leab that interconnects, the oil leab be used for idler shaft (8) and idle gear (7) bushing it
Between gap provide lubricating oil.
6. the dual-gripper impeller pump according to claim 4 with idle gear, it is characterized in that: the pump housing (1) is equipped with the
One oil leab (11), the idler shaft (1) are equipped with axial the second oil leab (12), second oil leab (12)
One end be equipped with the hole A (121) dock with the first oil leab (11), the other end is equipped with being lubricated idle gear (7) bushing
The hole B (122), the hole A (121) and the hole B (122) are radial hole, and the aperture of the hole A (121) is less than the first lubricating oil
The aperture in road (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910274283.1A CN109869621A (en) | 2019-04-08 | 2019-04-08 | A kind of dual-gripper impeller pump with idle gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910274283.1A CN109869621A (en) | 2019-04-08 | 2019-04-08 | A kind of dual-gripper impeller pump with idle gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109869621A true CN109869621A (en) | 2019-06-11 |
Family
ID=66922260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910274283.1A Pending CN109869621A (en) | 2019-04-08 | 2019-04-08 | A kind of dual-gripper impeller pump with idle gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457235A (en) * | 2020-05-18 | 2020-07-28 | 湖南机油泵股份有限公司 | Oil pump body capable of improving volume efficiency and oil pump |
| CN114294071A (en) * | 2022-01-08 | 2022-04-08 | 湖南机油泵股份有限公司 | Full variable displacement oil pump of commercial car |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060216187A1 (en) * | 2005-03-23 | 2006-09-28 | Yamada Manufacturing Co., Ltd. | Oil pump |
| DE102006028952A1 (en) * | 2005-07-01 | 2007-01-11 | Harley-Davidson Motorcycle Company Group, Inc., Milwaukee | Oil pump for an engine of a motorcycle has secondary pump assembly that is also partially disposed within the housing and includes a rotating mechanism that is directly driven by a separate or secondary camshaft |
| CN108662422A (en) * | 2018-08-16 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump that lubrication can be provided idle gear bushing |
| CN209782192U (en) * | 2019-04-08 | 2019-12-13 | 湖南机油泵股份有限公司 | Double-support rotor pump with idler gear |
-
2019
- 2019-04-08 CN CN201910274283.1A patent/CN109869621A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060216187A1 (en) * | 2005-03-23 | 2006-09-28 | Yamada Manufacturing Co., Ltd. | Oil pump |
| DE102006028952A1 (en) * | 2005-07-01 | 2007-01-11 | Harley-Davidson Motorcycle Company Group, Inc., Milwaukee | Oil pump for an engine of a motorcycle has secondary pump assembly that is also partially disposed within the housing and includes a rotating mechanism that is directly driven by a separate or secondary camshaft |
| CN108662422A (en) * | 2018-08-16 | 2018-10-16 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump that lubrication can be provided idle gear bushing |
| CN209782192U (en) * | 2019-04-08 | 2019-12-13 | 湖南机油泵股份有限公司 | Double-support rotor pump with idler gear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457235A (en) * | 2020-05-18 | 2020-07-28 | 湖南机油泵股份有限公司 | Oil pump body capable of improving volume efficiency and oil pump |
| CN114294071A (en) * | 2022-01-08 | 2022-04-08 | 湖南机油泵股份有限公司 | Full variable displacement oil pump of commercial car |
| CN114294071B (en) * | 2022-01-08 | 2022-11-18 | 湖南机油泵股份有限公司 | Full variable displacement oil pump of commercial car |
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