CN113638882B - Double-acting vane pump beneficial to high-speed filling - Google Patents
Double-acting vane pump beneficial to high-speed filling Download PDFInfo
- Publication number
- CN113638882B CN113638882B CN202110930962.7A CN202110930962A CN113638882B CN 113638882 B CN113638882 B CN 113638882B CN 202110930962 A CN202110930962 A CN 202110930962A CN 113638882 B CN113638882 B CN 113638882B
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- oil
- oil inlet
- pump
- cavity
- stator
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- 230000009286 beneficial effect Effects 0.000 title claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/025—Lubrication; Lubricant separation using a lubricant pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/028—Means for improving or restricting lubricant flow
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a double-acting vane pump beneficial to high-speed filling, which comprises a pump cover, vanes, a rotor, a stator, an oil distribution disc and a pump body, wherein the pump cover is arranged on the pump cover; the oil distribution disc is provided with two oil outlets, and the end surface of the stator is provided with a first oil inlet groove and a second oil inlet groove which are staggered with the two oil outlets at an angle at intervals; be equipped with the oil inlet of each other direct intercommunication on the pump body, oil return opening and oil-out, the oil inlet is close to first oil feed tank and keeps away from the second oil feed tank, the one side that is close to the oil inlet in the cavity of the pump body is equipped with the ARC baffle that extends to oil pump direction of rotation, form first guiding gutter between ARC baffle and the stator outer wall, form the second guiding gutter between the cavity lateral wall of ARC baffle and the pump body, fluid that comes from the oil inlet can directly flow in first oil feed tank, and shunt to the second oil feed tank through first guiding gutter, the whole second oil feed tanks that flow in of fluid accessible second guiding gutter that comes from the oil return opening. The invention can ensure that the two oil inlet grooves of the stator have better oil inlet.
Description
Technical Field
The invention relates to the technical field of a transmission lubricating hydraulic system, in particular to a double-acting vane pump with an oil return function.
Background
In the prior art, internal gears of the double-clutch automatic transmission are arranged in a parallel shaft mode, and therefore the occupied space is large, the existing economical passenger car is mostly arranged in a front-mounted front-drive mode, the size of the transmission is strictly limited, and therefore the space reserved for other parts is limited due to the influence of the size of a shell of the transmission. The transmission oil pump not only provides lubrication and heat dissipation for the gear and the bearing, but also provides hydraulic pressure for the valve plate, the plunger fit clearance in the valve plate is small, the precision is high, the transmission oil can pass through the filter after being pressurized by the oil pump and then enters the valve plate, the oil cleanliness is improved, the valve plate plunger is prevented from being clamped and blocked, namely, the post-pump filtration is realized, the post-pump filtration grade precision is very high, if only the post-pump filtration is realized, the service life of the filter is obviously shortened due to excessive impurities sucked in by the oil pump, the maintenance frequency is increased, therefore, the transmission oil pump can be additionally provided with a filter at the oil inlet, namely, the pre-pump filtration is realized, the impurity suction is reduced, the pre-pump filtration is slightly lower than the post-pump filtration precision grade, and the service life problem of the post-pump filtration can be basically solved.
The volume of the filter before the pump is limited due to the influence of the volume of the transmission, when the oil pump works at a high rotating speed, the oil inlet capacity of the filter before the pump is limited, and large oil inlet resistance can be generated, so that the negative pressure of an oil inlet cavity of the oil pump is too high when the oil pump works at the high rotating speed, the cavitation phenomenon of the oil pump can be caused due to the too high negative pressure, a body cover and a rotor are damaged, and further the failure of the oil pump is caused. In order to solve the problem of overlarge negative pressure of high-speed oil absorption, an oil return port is usually arranged in an oil pump oil inlet cavity, the oil part leaked from a valve plate is introduced into the oil inlet cavity, so that the high-speed large negative pressure of the oil pump is reduced, the oil absorption capacity of the oil pump is improved, the oil pump has higher high-speed filling capacity, the conventional oil return port of the oil pump directly leads into the oil pump oil inlet cavity, the oil return port of the oil pump is inconsistent with the flowing direction of the oil at the oil inlet of the oil pump, the oil in the oil pump oil inlet cavity can generate turbulent flow generally, the flow velocity is disordered, and the oil absorption of the oil pump is adversely affected.
Disclosure of Invention
The invention aims to provide a double-acting vane pump which is beneficial to high-speed filling and ensures that two oil inlet grooves of a stator have better oil inlet.
In order to solve the technical problems, the invention adopts the following technical scheme: a double-acting vane pump beneficial to high-speed filling comprises a transmission gear, a transmission shaft, a pump cover, vanes, a rotor, a stator, an oil distribution disc, screws, an O-shaped ring and a pump body; the pump cover, the stator and the oil distribution disc are connected into a whole by using screws and then are placed in the cavity of the pump body, the oil distribution disc divides the cavity of the pump body into an upper part and a lower part, the middle of the upper part of the cavity is used for accommodating the stator, the rotor and the blades, an oil inlet cavity is formed between the outer wall of the stator and the side wall of the cavity, and an oil outlet cavity is formed in the lower part of the cavity; an O-shaped ring is arranged between the outer edge of the oil distribution disc and the inner wall of the cavity of the pump body, two oil outlet holes are formed in the oil distribution disc, and a first oil inlet groove and a second oil inlet groove which are staggered from the two oil outlet holes in angle are formed in the end face of the stator at intervals; the oil pump is characterized in that an oil inlet, an oil return port and an oil outlet which are not directly communicated with each other are arranged on the pump body, the oil inlet is close to the first oil inlet groove and is far away from the second oil inlet groove, an arc-shaped partition plate extending towards the rotation direction of the oil pump is arranged on one side, close to the oil inlet, in the cavity of the pump body, a first diversion groove is formed between the arc-shaped partition plate and the outer wall of the stator, a second diversion groove is formed between the arc-shaped partition plate and the side wall of the cavity of the pump body, oil entering from the oil inlet can directly flow into the first oil inlet groove and is shunted to the second oil inlet groove through the first diversion groove, and the oil entering from the oil return port can completely flow into the second oil inlet groove through the second diversion groove.
Furthermore, still be equipped with two axial supplementary oil outlet on the stator, two supplementary oil outlet are waist type hole and correspond with the position of joining in marriage two oil outlet on the food tray. This can accelerate the oil discharge speed.
Preferably, the included angle between the first oil inlet groove and the second oil inlet groove is less than or equal to 180 degrees.
Preferably, the second flow guide groove and the first flow guide groove are converged at a position close to the second oil inlet groove, and the second flow guide groove and the first flow guide groove form an 'inlet' shape and are communicated to the second oil inlet groove.
Preferably, the first oil inlet groove and the second oil inlet groove are both of structures with wide outer parts and narrow inner parts.
In the invention, the oil inlet is close to the first oil inlet tank and far away from the second oil inlet tank, so that the aim of preferentially meeting the oil inlet of the first oil inlet tank is fulfilled, although the second oil inlet tank far away from the oil inlet can only obtain a small part of oil entering from the oil inlet through the first diversion trench, the oil return port can collect the oil leaked from the valve plate of the transmission and flow into the second oil inlet tank through the second diversion trench, thereby effectively supplementing the oil inlet of the second oil inlet tank point to point and ensuring the oil absorption efficiency of the second oil inlet tank. Therefore, the oil liquid coming from the oil inlet is reasonably distributed, and the flow guide of the oil return opening is fully utilized, so that two oil inlet grooves of the stator are ensured to have better oil inlet, the high-speed filling capacity of the oil pump is improved, and the oil liquid coming from the oil return opening directly and accurately flows into the second oil inlet groove through the second flow guide groove, so that the interference to the internal flow velocity of the oil pump is greatly reduced, and the fluid noise of the oil pump is reduced.
Drawings
FIG. 1 is a schematic view of an overall structure of an oil pump according to an embodiment of the present invention;
FIG. 2 is a schematic front view of a pump body according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a pump body according to an embodiment of the present invention;
FIG. 4 is a schematic view of a stator structure according to an embodiment of the present invention;
FIG. 5 is a schematic view illustrating a flow direction of oil of the oil pump according to an embodiment of the present invention;
the reference signs are:
1-transmission gear 2-transmission shaft 3-pump cover
4-rotor 5-stator 51-auxiliary oil outlet
52-first oil inlet tank 53-second oil inlet tank 6-oil distribution disc
7-pump body 71-cavity 72-oil inlet
73-oil return port 74-oil outlet 75-arc-shaped partition plate
76-first flow guide groove 77-second flow guide groove.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
As shown in fig. 1 to 5, a double-acting vane pump which facilitates high-speed filling comprises a transmission gear 1, a transmission shaft 2, a pump cover 3, vanes, a rotor 4, a stator 5, an oil distribution disc 6, screws, an O-ring and a pump body 7; the vanes and the rotor 4 are arranged in a rotor cavity of a stator 5, the pump cover 3, the stator 5 and an oil distribution disc 6 are connected into a whole by screws and then are placed in a cavity 71 of a pump body 7, the oil distribution disc 6 divides the cavity 71 of the pump body into an upper part and a lower part, the middle of the upper part of the cavity 71 is used for accommodating the stator 5, the rotor and the vanes, an oil inlet cavity A is arranged between the outer wall of the stator 5 and the side wall of the cavity 71, and an oil outlet cavity B is arranged at the lower part of the cavity 71; an O-shaped ring is arranged between the outer edge of the oil distribution disc 6 and the inner wall of the cavity 71 of the pump body, two oil outlet holes are formed in the oil distribution disc 6, two axial auxiliary oil outlet holes 51 are formed in the stator 5, and the two auxiliary oil outlet holes 51 are waist-shaped holes and correspond to the two oil outlet holes in the oil distribution disc 6 in position; the end face of the stator 5 is also provided with a first oil inlet groove 52 and a second oil inlet groove 53 which are staggered with the two auxiliary oil outlet holes 51 at certain angles at intervals, the included angle between the first oil inlet groove 52 and the second oil inlet groove 53 is less than or equal to 180 degrees, and the first oil inlet groove 52 and the second oil inlet groove 53 are both of structures with wide outer parts and narrow inner parts; an oil inlet 72, an oil return port 73 and an oil outlet 74 which are adjacent but not directly communicated are arranged on the pump body 7, the oil inlet 72 is close to the first oil inlet groove 52 and is far away from the second oil inlet groove 53, an arc-shaped partition plate 75 which extends towards the rotation direction of the oil pump is arranged on one side, close to the oil inlet 72, in the cavity 71 of the pump body, a first diversion groove 76 is formed between the arc-shaped partition plate 75 and the outer wall of the stator 5, a second diversion groove 77 is formed between the arc-shaped partition plate 75 and the side wall of the cavity 71 of the pump body, oil liquid entering from the oil inlet 72 can directly flow into the first oil inlet groove 52 and is diverted to the second oil inlet groove 53 through the first diversion groove 71, and the oil liquid entering from the oil return port 73 can completely flow into the second oil inlet groove 53 through the second diversion groove 77; at a position close to the second oil inlet groove 53, the second guide groove 77 meets the first guide groove 76, and the two form an inlet shape and are communicated with the second oil inlet groove 53.
As shown in fig. 5, in the present embodiment, the oil inlet 72 is close to the first oil inlet 52 and is far from the second oil inlet 53, so as to preferentially satisfy the oil inlet of the first oil inlet 52, while the second oil inlet 53 far from the oil inlet 72 can only obtain a small part of oil from the oil inlet 72 through the first diversion trench 76, but the oil return port 73 can collect oil leaked from the transmission valve plate and flow into the second oil inlet 53 through the second diversion trench 77, so as to effectively supplement the oil inlet of the second oil inlet 53 point to point, and ensure the oil absorption efficiency of the second oil inlet 53. Thus, the oil entering from the oil inlet 72 is reasonably distributed, and meanwhile, the diversion of the oil return port 73 is fully utilized, so that the two oil inlet grooves of the stator 5 are ensured to have better oil inlet, the high-speed filling capacity of the oil pump is improved, and the oil from the oil return port 73 directly and accurately flows into the second oil inlet groove 53 through the second diversion groove 77, so that the interference on the internal flow speed of the oil pump is greatly reduced, and the fluid noise of the oil pump is reduced.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (5)
1. A double-acting vane pump beneficial to high-speed filling comprises a transmission gear (1), a transmission shaft (2), a pump cover (3), vanes, a rotor (4), a stator (5), an oil distribution disc (6), screws and a pump body (7); the vane and the rotor are arranged in a rotor cavity of the stator (5), the pump cover (3), the stator (5) and the oil distribution disc (6) are connected into a whole by screws and then are placed in a cavity (71) of the pump body, the oil distribution disc (6) divides the cavity (71) of the pump body into an upper part and a lower part, the middle of the upper part of the cavity (71) is used for accommodating the stator (5), the rotor and the vane, an oil inlet cavity (A) is arranged between the outer wall of the stator (5) and the side wall of the cavity (71), and an oil outlet cavity (B) is arranged at the lower part of the cavity (71); the oil distribution disc (6) is provided with two oil outlets, and the end surface of the stator (5) is provided with a first oil inlet groove (52) and a second oil inlet groove (53) which are staggered with the two oil outlets at an angle at intervals; the method is characterized in that: the oil pump is characterized in that an oil inlet (72), an oil return port (73) and an oil outlet (74) which are not directly communicated with each other are arranged on the pump body (7), the oil inlet (72) is close to the first oil inlet groove (52) and is far away from the second oil inlet groove (53), an arc-shaped partition plate (75) extending towards the rotation direction of the oil pump is arranged on one side, close to the oil inlet (72), in the cavity (71) of the pump body, a first diversion trench (76) is formed between the arc-shaped partition plate (75) and the outer wall of the stator (5), a second diversion trench (77) is formed between the arc-shaped partition plate (75) and the side wall of the cavity (71) of the pump body, oil liquid entering from the oil inlet (72) can directly flow into the first oil inlet groove (52) and is shunted to the second oil inlet groove (53) through the first diversion trench (76), and the oil liquid entering from the oil return port (73) can completely flow into the second oil inlet groove (53) through the second diversion trench (77).
2. A double acting vane pump facilitating high speed filling according to claim 1 wherein: the stator (5) is further provided with two axial auxiliary oil outlets (51), and the two auxiliary oil outlets (51) are waist-shaped holes and correspond to the two oil outlets on the oil distribution disc (6).
3. A double acting vane pump which facilitates high speed filling according to claim 1 or 2, wherein: the included angle between the first oil inlet groove (52) and the second oil inlet groove (53) is less than or equal to 180 degrees.
4. A double acting vane pump which facilitates high speed filling according to claim 1 or 2, wherein: the second guide groove (77) and the first guide groove (76) are converged at a position close to the second oil inlet groove (53), and form an 'in' shape and are communicated to the second oil inlet groove (53).
5. A double acting vane pump facilitating high speed filling according to claim 1 or 2, wherein: the first oil inlet groove (52) and the second oil inlet groove (53) are both of structures with wide outer parts and narrow inner parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930962.7A CN113638882B (en) | 2021-08-13 | 2021-08-13 | Double-acting vane pump beneficial to high-speed filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930962.7A CN113638882B (en) | 2021-08-13 | 2021-08-13 | Double-acting vane pump beneficial to high-speed filling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113638882A CN113638882A (en) | 2021-11-12 |
| CN113638882B true CN113638882B (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110930962.7A Active CN113638882B (en) | 2021-08-13 | 2021-08-13 | Double-acting vane pump beneficial to high-speed filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113638882B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153384A (en) * | 1961-06-12 | 1964-10-20 | Pacific Ind Mfg Co | Vane type pump |
| CN204163981U (en) * | 2014-10-14 | 2015-02-18 | 通化市东方绿洲油俱有限责任公司 | Duplex eccentric driven pump |
| CN206522241U (en) * | 2017-02-21 | 2017-09-26 | 潘统勤 | Jing Yin infusion pump |
| CN206681811U (en) * | 2017-05-08 | 2017-11-28 | 湖南机油泵股份有限公司 | A kind of machine oil refrigerating module housing that can weaken vortex phenomenon |
| CN112302932A (en) * | 2020-11-11 | 2021-02-02 | 湖南机油泵股份有限公司 | Displacement-variable vane pump capable of avoiding pressure drop during temperature rise |
| CN213116689U (en) * | 2020-06-30 | 2021-05-04 | 重庆长安汽车股份有限公司 | Double-clutch transmission vane pump |
-
2021
- 2021-08-13 CN CN202110930962.7A patent/CN113638882B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153384A (en) * | 1961-06-12 | 1964-10-20 | Pacific Ind Mfg Co | Vane type pump |
| CN204163981U (en) * | 2014-10-14 | 2015-02-18 | 通化市东方绿洲油俱有限责任公司 | Duplex eccentric driven pump |
| CN206522241U (en) * | 2017-02-21 | 2017-09-26 | 潘统勤 | Jing Yin infusion pump |
| CN206681811U (en) * | 2017-05-08 | 2017-11-28 | 湖南机油泵股份有限公司 | A kind of machine oil refrigerating module housing that can weaken vortex phenomenon |
| CN213116689U (en) * | 2020-06-30 | 2021-05-04 | 重庆长安汽车股份有限公司 | Double-clutch transmission vane pump |
| CN112302932A (en) * | 2020-11-11 | 2021-02-02 | 湖南机油泵股份有限公司 | Displacement-variable vane pump capable of avoiding pressure drop during temperature rise |
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| Publication number | Publication date |
|---|---|
| CN113638882A (en) | 2021-11-12 |
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Address after: No.69 Hengyue North Road, Chengguan Town, Hengdong County, Hengyang City, Hunan Province Patentee after: Hunan Meihu Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: No.69 Hengyue North Road, Chengguan Town, Hengdong County, Hengyang City, Hunan Province Patentee before: Hunan Oil Pump Co.,Ltd. Country or region before: China |