CN103291579B - A kind of driving mechanism of double pump - Google Patents
A kind of driving mechanism of double pump Download PDFInfo
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- CN103291579B CN103291579B CN201310234355.2A CN201310234355A CN103291579B CN 103291579 B CN103291579 B CN 103291579B CN 201310234355 A CN201310234355 A CN 201310234355A CN 103291579 B CN103291579 B CN 103291579B
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- motor
- driving mechanism
- eccentric cam
- bracket
- double pump
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Abstract
The present invention discloses a kind of driving mechanism of double pump, comprises bracket, motor, motor shaft, live axle, eccentric cam, it is characterized in that: described motor is arranged on bracket, described bracket is also provided with two pumps; The motor shaft of described motor is provided with two opposed single direction rotation devices, drive each self-corresponding live axle respectively, and power is passed to respectively each self-corresponding eccentric cam, described eccentric cam drives each self-corresponding pump respectively.The invention has the beneficial effects as follows: this driving mechanism structure is compact, manufacture and easy to assembly, cost is low, when being applied to the double pump driving isolated operation, what can realize feed fluid flows to switching function.
Description
Technical field
The present invention relates to a kind of driving mechanism, be applicable to a kind of isolated operation and need the driving of the double pump of switch operating.
Background technique
Increasingly serious along with environmental problem and energy crisis; Abgasgesetz increasingly stringent; increasing energy-conserving and emission-cutting technology is applied in vehicle; wherein SCR(selective catalytic reduction) technology is a kind of technology reducing oxynitride discharge, SCR technology is exactly by urea liquid, a kind of reducing agent; spray in outlet pipe; discharge ammonia, ammonia reacts with the oxynitrides in exhaust and generates nitrogen and water in SCR catalytic converter, thus purges the oxynitrides in exhaust.Because this reducing agent freezing point of urea liquid is-11 DEG C, when the temperature of external environment is lower than this temperature, urea liquid will crystallization, thus makes urea liquid volumetric expansion and damage injection feeding mechanism, and therefore vehicle-mounted injection supply system needs to carry out emptying process after use terminates.
Having in prior art and adopt supply pump to supply urea solution, emptying by emptying pump at AEI After End of Injection.And supply pump and the driving emptying pump adopt man-to-man driving mostly, for the double pump system of isolated operation, run according to the identical or different driving mechanism of two covers, system bulk is comparatively large, and structural redundancy, cost is higher.
Summary of the invention
The object of the invention is to provide the double pump driving mechanism that a kind of volume is little, compact structure, cost are low.
The present invention for achieving the above object, adopts following technological scheme:
A driving mechanism for double pump, comprises bracket, motor, motor shaft, live axle, eccentric cam, it is characterized in that: described motor is arranged on bracket, described bracket is also provided with two pumps; The motor shaft of described motor is provided with two opposed single direction rotation devices, drives each self-corresponding live axle respectively, and give each self-corresponding eccentric cam by transmission of power, described eccentric cam drives each self-corresponding pump respectively.
A kind of form: described motor shaft Single-end output power; Motor is arranged on the side of two pumps.
Described bracket is provided with spring bearing, and for supporting driving shaft, motor proximal drive shaft adopts single-ended support, and motor distal drive shaft adopts both-end to support.
Another kind of form: described motor shaft both-end outputting power; Motor is arranged between two pumps.
Described bracket is provided with spring bearing, and for supporting driving shaft, motor two ends live axle adopts both-end to support.
In above-mentioned two kinds of forms, the outer ring of described single direction rotation device is installed with respective shaft center female coaxial close-fitting respectively.
The cylindrical close-fitting of described eccentric cam is arranged on the inner ring of camshaft bearing, and the outer ring of camshaft bearing is connected with the inner ring close-fitting of the connecting rod of pump, and outside the side of connecting rod, disk is connected with described pump respectively by screw.
The invention has the beneficial effects as follows: this driving mechanism structure is compact, manufacture and easy to assembly, cost is low, when being applied to the double pump driving isolated operation, what can realize feed fluid flows to switching function.
Accompanying drawing explanation
Fig. 1 is that double pump of the present invention is at motor side structural representation.
Fig. 2 is the carrier structure schematic diagram in Fig. 1.
Fig. 3 is that double pump of the present invention is at motor structure on two sides schematic diagram.
Fig. 4 is the carrier structure schematic diagram in Fig. 3.
Embodiment
As shown in Figure 1, the present invention forms the driving mechanism of a set of double pump primarily of motor 1, motor shaft 2, bracket 3, live axle I 4, live axle II 10, single direction rotation device I 5 and single direction rotation device II 9, eccentric cam I 6, eccentric cam II 11, connecting rod 7, camshaft bearing 8, spring bearing 13.
Motor 1 is arranged on bracket 3, single direction rotation device I 5 and single direction rotation device II 9, the unilateral bearing I of preferred correspondence and unilateral bearing II, with opposite direction respectively close-fitting be arranged in the center hole of live axle I 4 and live axle II 10 side, motor shaft 2 is coaxially connected with unilateral bearing I and unilateral bearing II.Pump II 12 is pressure feed pump, and pump I 14 is non-pressure supply pump, is considered as emptying pump, this kind of mode, can be realized supply pump by three spring bearings 13 be contained in respectively in bearing race 3a, 3b, the 3c on bracket 3 and be emptied the support of pump, as shown in Figure 2.The cylindrical of live axle I 4 and live axle II 10 respectively close-fitting is arranged on the inner ring of eccentric cam I 6 and eccentric cam II 11, the cylindrical close-fitting of eccentric cam I 6 and eccentric cam II 11 is arranged on the inner ring of camshaft bearing 8, and have the inner ring end contact of side and spring bearing 13 at least, play the role of positioning.The outer ring of camshaft bearing 8 is connected with the inner ring close-fitting of connecting rod 7, and outside the side of connecting rod 7, disk connects pump I 14 and pump II 12 respectively by screw.
When motor 1 one direction rotates, only drive one of them running of live axle I 4 and live axle II 10.Specific as follows: when motor 1 rotates forward, the unilateral bearing II in live axle II 10 is driven, and transferring power is to the eccentric cam II 11 on live axle II 10 thus, pump II 12 works, and unilateral bearing I in live axle I 4 is motionless, pump I 14 does not work, and realizes the isolated operation of double pump thus.Otherwise, motor 1 counterrotating, unilateral bearing II in live axle II 10 is motionless, transferring power is not to the eccentric cam II 11 on live axle II 10, pump II 12 does not work, and the unilateral bearing I in live axle I 4 is driven, and outputting power is to the eccentric cam I 6 on live axle I 4, pump I 14 works, and the working state realizing double pump thus switches.
As another form of driving mechanism of the present invention, as shown in Figure 3.Motor 1 is arranged between pump I 14 and pump II 12, and motor 1 two ends stretch out motor shaft 2a, 2b respectively, and unilateral bearing I and unilateral bearing II are arranged in two identical live axles III 15 with opposite direction respectively.Four spring bearings 13 are arranged in bearing race 16a, 16b, 16c and the 16d on bracket 3, as shown in Figure 4.Driving in its working principle and Fig. 1 describes similar.
Claims (6)
1. a driving mechanism for double pump, comprises bracket, motor, motor shaft, live axle, eccentric cam, it is characterized in that: described motor is arranged on bracket, described bracket is also provided with two pumps; The motor shaft of described motor is provided with two opposed single direction rotation devices, drive each self-corresponding live axle respectively, and power is passed to respectively each self-corresponding eccentric cam, described eccentric cam drives each self-corresponding pump respectively; The outer ring of described single direction rotation device is installed with respective shaft center female coaxial close-fitting respectively.
2. the driving mechanism of double pump according to claim 1, is characterized in that: described motor shaft Single-end output power; Motor is arranged on the side of two pumps.
3. the driving mechanism of double pump according to claim 1, is characterized in that: described motor shaft both-end outputting power; Motor is arranged between two pumps.
4. the driving mechanism of the double pump according to claim 1,2 or 3, it is characterized in that: the cylindrical close-fitting of described eccentric cam is arranged on the inner ring of camshaft bearing, the outer ring of camshaft bearing is connected with the inner ring close-fitting of the connecting rod of pump, and outside the side of connecting rod, disk is connected with described pump respectively by screw.
5. the driving mechanism of double pump according to claim 2, is characterized in that: described bracket is provided with spring bearing, and for supporting driving shaft, motor proximal drive shaft adopts single-ended support, and motor distal drive shaft adopts both-end to support.
6. the driving mechanism of double pump according to claim 3, is characterized in that: described bracket is provided with spring bearing for supporting driving shaft, and motor two ends live axle adopts both-end to support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234355.2A CN103291579B (en) | 2013-06-13 | 2013-06-13 | A kind of driving mechanism of double pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234355.2A CN103291579B (en) | 2013-06-13 | 2013-06-13 | A kind of driving mechanism of double pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103291579A CN103291579A (en) | 2013-09-11 |
| CN103291579B true CN103291579B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310234355.2A Active CN103291579B (en) | 2013-06-13 | 2013-06-13 | A kind of driving mechanism of double pump |
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| CN (1) | CN103291579B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118481943B (en) * | 2024-06-04 | 2024-10-01 | 北京锐滨健新材料科技有限公司 | Power driving device for high-pressure jet water pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201162640Y (en) * | 2008-03-05 | 2008-12-10 | 吴博 | Double-power apparatus of engineering machinery |
| DE102008000932A1 (en) * | 2008-04-02 | 2009-10-08 | Robert Bosch Gmbh | Device for dosing a liquid reducing agent |
| CN101737127A (en) * | 2008-11-25 | 2010-06-16 | 无锡油泵油嘴研究所 | SCP urea injection system for post treatment of diesel engine emissions |
| DE102011002425A1 (en) * | 2011-01-04 | 2012-07-05 | Robert Bosch Gmbh | Conveying device for supplying an exhaust aftertreatment system of an internal combustion engine with a reducing agent and method |
| CN102953787A (en) * | 2012-11-28 | 2013-03-06 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Dual-pump type reducer jetting and supplying device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITCR20030008A1 (en) * | 2003-06-03 | 2004-12-04 | Bertolazzi Marino Pedrazzini | APPLIANCE INCLUDING TWO OPERATING DEVICES, OPERATED SELECTIVELY AND INDEPENDENTLY BY A SINGLE ELECTRIC MOTOR. |
-
2013
- 2013-06-13 CN CN201310234355.2A patent/CN103291579B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201162640Y (en) * | 2008-03-05 | 2008-12-10 | 吴博 | Double-power apparatus of engineering machinery |
| DE102008000932A1 (en) * | 2008-04-02 | 2009-10-08 | Robert Bosch Gmbh | Device for dosing a liquid reducing agent |
| CN101737127A (en) * | 2008-11-25 | 2010-06-16 | 无锡油泵油嘴研究所 | SCP urea injection system for post treatment of diesel engine emissions |
| DE102011002425A1 (en) * | 2011-01-04 | 2012-07-05 | Robert Bosch Gmbh | Conveying device for supplying an exhaust aftertreatment system of an internal combustion engine with a reducing agent and method |
| CN102953787A (en) * | 2012-11-28 | 2013-03-06 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Dual-pump type reducer jetting and supplying device |
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| Publication number | Publication date |
|---|---|
| CN103291579A (en) | 2013-09-11 |
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Effective date of registration: 20170613 Address after: 214063 Jiangsu province Binhu District of Wuxi City Qian Rong Lu No. 15 Patentee after: China FAW Group Corporation Address before: 214000 Jiangsu province Binhu District of Wuxi City Qian Rong Lu No. 15 Patentee before: Wuxi Oil Pump Nozzle Institute of First Automobile Works |
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