CN113638879B - Electromagnetic clutch dual pump - Google Patents
Electromagnetic clutch dual pump Download PDFInfo
- Publication number
- CN113638879B CN113638879B CN202111042059.3A CN202111042059A CN113638879B CN 113638879 B CN113638879 B CN 113638879B CN 202111042059 A CN202111042059 A CN 202111042059A CN 113638879 B CN113638879 B CN 113638879B
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- CN
- China
- Prior art keywords
- oil pump
- pump
- shaft
- pump shaft
- driving sleeve
- 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.)
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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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
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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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
- F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
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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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
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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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
Abstract
The invention provides an electromagnetic clutch dual pump, which comprises a belt pulley, an electromagnetic clutch, a transmission shaft, a pump body, a front pump cover and a rear pump cover, wherein the pump body is provided with an engine oil pump cavity and a vacuum pump cavity; the electromagnetic clutch comprises a driving sleeve and an electromagnetic coil, and the driving sleeve is arranged on the front pump cover through a supporting bearing; the transmission shaft comprises an oil pump shaft and a vacuum pump shaft, and convex teeth capable of being meshed with each other are arranged on the oil pump shaft and the vacuum pump shaft; the outer side end of the engine oil pump shaft extends outwards from the engine oil pump cavity through the front pump cover and the driving sleeve and then is in interference connection with the belt pulley, the engine oil pump shaft can drive the driving sleeve to rotate and can axially move relative to the driving sleeve and the oil pump rotor, a return spring is arranged between the driving sleeve and the belt pulley, and the pretightening force of the return spring can enable the engine oil pump shaft and the vacuum pump shaft to be in a separated state; the magnetic attraction generated by the electromagnetic clutch can absorb the pulley to drive the oil pump shaft of the belt pulley to move axially inwards and is meshed with the vacuum pump shaft.
Description
Technical Field
The invention relates to an automobile hydraulic system and a lubricating system, in particular to an electromagnetic clutch dual pump.
Background
Vacuum boosters in hydraulic brake systems of automobiles generally require vacuum boosting, and the vacuum source of the vacuum booster can be provided through an intake manifold or a vacuum pump, but a general mechanical vacuum pump or a tandem pump (integration of an oil pump and a vacuum pump) is continuously operated. The lubricating system of the automobile needs continuous operation of the oil pump to meet the requirements of cooling and lubricating an engine, but the vacuum booster does not need a vacuum pump to continuously work after the vacuum booster reaches the required vacuum degree. However, the vacuum pump or the tandem pump provided by the prior art keeps the vacuum pump in a continuous operation state, which certainly reduces the service life of the vacuum pump and increases the energy consumption of the engine.
Disclosure of Invention
The invention aims to provide an electromagnetic clutch duplex pump, wherein an oil pump of the duplex pump can continuously run, and a vacuum pump intermittently runs as required.
In order to solve the technical problems, the technical scheme of the invention is as follows: an electromagnetic clutch dual pump comprises a belt pulley, an electromagnetic clutch, a supporting bearing, a reset spring, a transmission shaft, a pump body, a front pump cover and a rear pump cover, wherein the pump body is provided with an engine oil pump cavity and a vacuum pump cavity which are coaxial, an oil pump rotor is arranged in the engine oil pump cavity and is sealed through the front pump cover, and a vacuum rotor is arranged in the vacuum pump cavity and is sealed through the rear pump cover; the electromagnetic clutch comprises a driving sleeve and an electromagnetic coil, and the driving sleeve is arranged on the front pump cover through a supporting bearing; the transmission shaft comprises an oil pump shaft and a vacuum pump shaft which can be separated and combined with each other, the end faces, used for being combined with each other, of the oil pump shaft and the vacuum pump shaft are respectively provided with a convex tooth which can be meshed with each other, the vacuum pump shaft is used for driving a vacuum rotor, and the oil pump shaft is used for driving an oil pump rotor to rotate and can axially move relative to the oil pump rotor; the outer side end of the engine oil pump shaft extends outwards from the engine oil pump chamber, extends through the front pump cover and the driving sleeve and then is in interference connection with the belt pulley, the engine oil pump shaft can drive the driving sleeve to rotate and can axially move relative to the driving sleeve under the action of the belt pulley, a return spring is arranged between the driving sleeve and the belt pulley, and the pretightening force of the return spring can apply an outward force to the belt pulley so as to force the engine oil pump shaft and the vacuum pump shaft which are in interference fit with the belt pulley to be in a separation state; when the vacuum pump needs to work, the electromagnetic coil is electrified, so that the driving sleeve generates magnetic attraction to adsorb the belt pulley and compress the return spring to approach the driving sleeve, the oil pump shaft moves axially inwards along with the belt pulley and is meshed with the joint surface of the vacuum pump shaft, and power is transmitted to the vacuum pump shaft, so that the oil pump and the vacuum pump can run simultaneously.
In one embodiment, the oil pump shaft is coupled to the oil pump rotor by a flat key or spline.
In one embodiment, the oil pump shaft is coupled to the drive sleeve by a flat key or spline.
The oil pump and the vacuum pump are integrated on a pump body, share a transmission shaft, and then the transmission shaft is divided into two parts, namely an oil pump shaft and a vacuum pump shaft, the end surfaces of the oil pump shaft and the vacuum pump shaft are provided with convex teeth capable of being meshed with each other, and under the action of an electromagnetic clutch, the oil pump shaft and the vacuum pump shaft can be separated and combined; the belt pulley is arranged at the outer side end of the oil pump shaft, so that the oil pump can continuously run, the oil pump shaft and the vacuum pump shaft are initially separated under the action of the elastic force of the return spring, and the oil pump shaft and the vacuum pump shaft can be combined only by the adsorption belt pulley driving the oil pump shaft to axially move inwards after the electromagnetic clutch is electrified, so that power is transmitted to the vacuum pump shaft, and the oil pump and the vacuum pump run simultaneously. Therefore, the duplex pump provided by the invention can determine whether the vacuum pump operates according to actual requirements on the premise of ensuring the continuous operation of the oil pump, so that the vacuum pump can be automatically started and stopped, the abrasion to the vacuum pump can be reduced, the service life of the vacuum pump is prolonged, the energy consumption of an engine can be effectively reduced, and energy conservation and emission reduction are realized.
Drawings
FIG. 1 is a schematic structural diagram of an electromagnetic clutch dual pump in an embodiment of the invention;
FIG. 2 is a schematic diagram of an oil pump shaft structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a vacuum pump shaft configuration in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an oil pump shaft and a vacuum pump shaft in a combined state according to an embodiment of the present invention;
the reference signs are: 1-belt pulley 2-supporting bearing 3-engine oil pump shaft 4-driving sleeve 5-reset spring 6-electromagnetic coil 7-pump body 8-vacuum pump shaft 9-vacuum rotor 10-oil pump rotor.
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", and the like, indicate orientations and positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not 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 4, an electromagnetic clutch dual pump includes a belt pulley 1, an electromagnetic clutch, a support bearing 2, a return spring 5, a transmission shaft, a pump body 7, a front pump cover (not shown in the figure), and a rear pump cover (not shown in the figure), wherein the pump body 7 is provided with a coaxial oil pump cavity and a vacuum pump cavity, the oil pump cavity accommodates an oil pump rotor 10, i.e., an inner rotor and an outer rotor, and is sealed by the front pump cover, and the vacuum pump cavity accommodates a vacuum rotor 9 and a rotor plate and is sealed by the rear pump cover; the electromagnetic clutch comprises a driving sleeve 4 and an electromagnetic coil 6, and the driving sleeve 4 is installed on the front pump cover through a supporting bearing 2; the transmission shaft comprises an oil pump shaft 3 and a vacuum pump shaft 8 which can be separated and combined with each other, the end surfaces of the oil pump shaft 3 and the vacuum pump shaft 8, which are used for being combined with each other, are respectively provided with convex teeth which can be meshed with each other, the vacuum pump shaft 8 is used for driving a vacuum rotor, and the oil pump shaft 3 is used for driving an oil pump rotor 10 to rotate and can axially move relative to the oil pump rotor 10; the outer side end of the engine oil pump shaft 3 extends outwards from the engine oil pump cavity through the front pump cover and the driving sleeve 4 and then is in interference connection with the belt pulley 1, the engine oil pump shaft 3 can drive the driving sleeve 4 to rotate and axially move relative to the driving sleeve 4 under the action of the belt pulley 1, a return spring 5 is arranged between the driving sleeve 4 and the belt pulley 1, and the pretightening force of the return spring 5 can apply an outwards force to the belt pulley 1 so as to force the engine oil pump shaft 3 and the vacuum pump shaft 8 which are in interference fit with the belt pulley 1 to be in a separated state; when the vacuum pump needs to work, the electromagnetic coil 6 is electrified, so that the driving sleeve 4 generates magnetic attraction to adsorb the belt pulley 1 and compress the return spring 5 to approach the driving sleeve 4, the oil pump shaft 3 moves axially inwards along with the belt pulley 1 and is meshed with the joint surface of the vacuum pump shaft 8, and power is transmitted to the vacuum pump shaft 8, so that the oil pump and the vacuum pump can run simultaneously.
The oil pump shaft in this embodiment is connected to the oil pump rotor and the driving sleeve through two flat keys, so as to be a stepped shaft, and two key grooves are formed in the circumferential surface of the stepped shaft, as shown in fig. 2. Based on the same inventive concept, the oil pump shaft can also be respectively connected with the oil pump rotor and the driving sleeve through splines.
In the embodiment, the oil pump and the vacuum pump are integrated on a pump body 7, a transmission shaft is shared, then the transmission shaft is divided into two parts, namely the oil pump shaft 3 and the vacuum pump shaft 8, the end surfaces of the oil pump shaft 3 and the vacuum pump shaft 8 are provided with convex teeth which can be meshed with each other, and under the action of an electromagnetic clutch, the oil pump shaft 3 and the vacuum pump shaft 8 can be separated and combined; the belt pulley 1 is arranged at the outer side end of the oil pump shaft 3, so that the oil pump shaft 3 can continuously run, the oil pump shaft 3 and the vacuum pump shaft 8 are initially in a separated state under the action of the elastic force of the return spring 5, and the oil pump shaft 3 and the vacuum pump shaft 8 can be combined only when the adsorption belt pulley 1 drives the oil pump shaft 3 to move inwards and axially after the electromagnetic clutch is electrified, so that power is transmitted to the vacuum pump shaft, and the oil pump and the vacuum pump run simultaneously. Therefore, the duplex pump provided by the invention can determine whether the vacuum pump operates according to actual requirements on the premise of ensuring the continuous operation of the oil pump, so that the vacuum pump can be automatically started and stopped, the abrasion to the vacuum pump can be reduced, the service life of the vacuum pump can be prolonged, the energy consumption of an engine can be effectively reduced, and energy conservation and emission reduction can be realized.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways, and any obvious substitutions are within the protection scope of the present invention without departing from the concept 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 (3)
1. An electromagnetic clutch dual pump which is characterized in that: the oil pump comprises a belt pulley (1), an electromagnetic clutch, a support bearing (2), a return spring (5), a transmission shaft, a pump body (7), a front pump cover and a rear pump cover, wherein the pump body (7) is provided with an engine oil pump cavity and a vacuum pump cavity which are coaxial, an oil pump rotor (10) is arranged in the engine oil pump cavity and is sealed through the front pump cover, and a vacuum rotor (9) is arranged in the vacuum pump cavity and is sealed through the rear pump cover; the electromagnetic clutch comprises a driving sleeve (4) and an electromagnetic coil (6), wherein the driving sleeve (4) is arranged on the front pump cover through a supporting bearing (2); the transmission shaft comprises an oil pump shaft (3) and a vacuum pump shaft (8) which can be separated and combined with each other, the end faces, used for being combined with each other, of the oil pump shaft (3) and the vacuum pump shaft (8) are respectively provided with a convex tooth which can be meshed with each other, the vacuum pump shaft (8) is used for driving a vacuum rotor (9), and the oil pump shaft (3) is used for driving an oil pump rotor (10) to rotate and can axially move relative to the oil pump rotor (10); the outer side end of the engine oil pump shaft (3) extends outwards from the engine oil pump chamber through the front pump cover and the driving sleeve (4) and then is in interference connection with the belt pulley (1), the engine oil pump shaft (3) can drive the driving sleeve (4) to rotate and axially move relative to the driving sleeve (4) under the action of the belt pulley (1), a return spring (5) is installed between the driving sleeve (4) and the belt pulley (1), and the pretightening force of the return spring (5) can apply an outward force to the belt pulley (1) so as to force the engine oil pump shaft (3) and the vacuum pump shaft (8) which are in interference fit with the belt pulley (1) to be in a separation state; when the vacuum pump needs to work, the electromagnetic coil (6) is electrified, the driving sleeve (4) generates magnetic attraction to adsorb the belt pulley (1) and compress the return spring (5) to be close to the driving sleeve (4), the oil pump shaft (3) moves axially along with the belt pulley (1) and is meshed with the joint surface of the vacuum pump shaft (8), and power is transmitted to the vacuum pump shaft (8), so that the oil pump and the vacuum pump can run simultaneously.
2. The electromagnetic clutch twin pump of claim 1, wherein: the engine oil pump shaft (3) is connected with the oil pump rotor (10) through a flat key or a spline.
3. The electromagnetic clutch twin pump of claim 1, wherein: the engine oil pump shaft (3) is connected with the driving sleeve (4) through a flat key or a spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042059.3A CN113638879B (en) | 2021-09-07 | 2021-09-07 | Electromagnetic clutch dual pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111042059.3A CN113638879B (en) | 2021-09-07 | 2021-09-07 | Electromagnetic clutch dual pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113638879A CN113638879A (en) | 2021-11-12 |
| CN113638879B true CN113638879B (en) | 2023-03-24 |
Family
ID=78425276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111042059.3A Active CN113638879B (en) | 2021-09-07 | 2021-09-07 | Electromagnetic clutch dual pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113638879B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909277B (en) * | 2022-04-26 | 2023-03-21 | 天津大学 | Compressor capable of providing negative pressure function |
| CN116480771B (en) * | 2023-06-25 | 2023-09-26 | 浙江万里扬新能源驱动有限公司杭州分公司 | Separable electronic duplex pump |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006036445A1 (en) * | 2006-08-04 | 2008-05-15 | Robert Bosch Gmbh | Vacuum generation in hybrid-powered vehicles |
| JP5347184B2 (en) * | 2006-11-23 | 2013-11-20 | イグゼチック ヒュッケスバーゲン ゲーエムベーハー | pump |
| CN201474902U (en) * | 2009-06-08 | 2010-05-19 | 奇瑞汽车股份有限公司 | Novel mechanical vacuum pump |
| KR101251769B1 (en) * | 2010-12-01 | 2013-04-05 | 현대자동차주식회사 | Apparatus and method for supplementing brake vaccum pressure |
| EP2746584A1 (en) * | 2012-12-20 | 2014-06-25 | Wabco Automotive UK Limited | Disconnectable Drive For A Vacuum Pump |
| CN103640564B (en) * | 2013-11-29 | 2016-01-20 | 宁波圣龙汽车动力系统股份有限公司 | Vacuum auxiliary brake device |
| CN105370568A (en) * | 2015-12-16 | 2016-03-02 | 重庆云海机械制造有限公司 | Automobile duplex pump |
| CN109268263A (en) * | 2018-11-29 | 2019-01-25 | 湖南机油泵股份有限公司 | A kind of oil pump that can prevent rotor from inverting |
| CN210565082U (en) * | 2019-08-21 | 2020-05-19 | 台州滨海吉利发动机有限公司 | Clutch type mechanical vacuum pump |
-
2021
- 2021-09-07 CN CN202111042059.3A patent/CN113638879B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113638879A (en) | 2021-11-12 |
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