CN103291579A - Mechanism for driving double pumps - Google Patents
Mechanism for driving double pumps Download PDFInfo
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- CN103291579A CN103291579A CN2013102343552A CN201310234355A CN103291579A CN 103291579 A CN103291579 A CN 103291579A CN 2013102343552 A CN2013102343552 A CN 2013102343552A CN 201310234355 A CN201310234355 A CN 201310234355A CN 103291579 A CN103291579 A CN 103291579A
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- motor
- pumps
- driving mechanism
- live axle
- pump
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Abstract
The invention discloses a mechanism for driving double pumps. The mechanism for driving the double pumps comprises a bracket, a motor, a motor shaft, driving shafts and eccentric cams and is characterized in that the motor is installed on the bracket, the two pumps are further arranged on the bracket, two one-way rotating devices which are oppositely arranged are arranged on the motor shaft of the motor and respectively drive the corresponding driving shafts and respectively transmit power to the corresponding eccentric cams, and the eccentric cams respectively drive the corresponding pumps. The mechanism for driving the double pumps has the advantages of being compact in structure, convenient to manufacture and assemble, low in cost, and capable of achieving the function of switching the flow direction of supplied liquid when being used for driving the independently-operated double pumps.
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; the Abgasgesetz increasingly stringent; increasing energy-conserving and emission-cutting technology is applied in the vehicle; SCR(selective catalytic reduction wherein) technology is a kind of technology that reduces the oxynitrides discharging, and the SCR technology is exactly with urea liquid, a kind of reducing agent; spray in the outlet pipe; discharge ammonia, ammonia in the SCR catalytic converter with exhaust in oxynitrides reaction generate the nitrogen G﹠W, thereby purge the oxynitrides in the exhaust.Because this reducing agent freezing point of urea liquid is-11 ℃, when the temperature of external environment is lower than this temperature, urea liquid will be separated out crystallization, thereby makes the urea liquid volumetric expansion and damage the injection feeding mechanism, and therefore vehicle-mounted injection supply system needs to empty processing after finishing using.
Have in the prior art and adopt the supply pump solution of supplying urea, empty by emptying pump at AEI After End of Injection.And supply pump adopts man-to-man driving mostly with the driving that empties pump, for the double pump system of isolated operation, moves if identical or different driving mechanism is overlapped in employing two, and system bulk is bigger, structural redundancy, and cost is higher.
Summary of the invention
The object of the invention is to provide that a kind of volume is little, compact structure, double pump driving mechanism that cost is low.
The present invention adopts following technological scheme for achieving the above object:
A kind of driving mechanism of double pump comprises carriage, motor, motor shaft, live axle, eccentric cam, it is characterized in that: described motor is installed on the carriage, also is provided with two pumps on the described carriage; The motor shaft of described motor is provided with two opposed unidirectional whirligigs, drives each self-corresponding live axle respectively, and gives each self-corresponding eccentric cam with transmission of power, and described eccentric cam drives each self-corresponding pump respectively.
A kind of form: the single-ended outputting power of described motor shaft; Motor is installed in a side of two pumps.
Described carriage is provided with spring bearing, is used for supporting driving shaft, and motor near-end live axle adopts single-ended support, and motor far-end live axle adopts both-end to support.
Another kind of form: described motor shaft both-end outputting power; Motor is installed between two pumps.
Described carriage is provided with spring bearing, is used for supporting driving shaft, and motor two ends live axle adopts both-end to support.
In above-mentioned two kinds of forms, install with the coaxial close-fitting of shaft center endoporus separately respectively the outer ring of described unidirectional whirligig.
The cylindrical close-fitting of described eccentric cam is installed in 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 the outer disk of a side of connecting rod is connected with described pump by screw respectively.
The invention has the beneficial effects as follows: this driving mechanism structure compactness, manufacturing and easy to assembly, cost is low, when being applied to drive the double pump of isolated operation, can realize the switching function that flows to of feed fluid.
Description of drawings
Fig. 1 is that double pump of the present invention is at motor one side structure schematic representation.
Fig. 2 is the carrier structure schematic representation among Fig. 1.
Fig. 3 is that double pump of the present invention is at motor structure on two sides schematic representation.
Fig. 4 is the carrier structure schematic representation among Fig. 3.
Embodiment
As shown in Figure 1, the present invention mainly is made of the driving mechanism of a cover double pump motor 1, motor shaft 2, carriage 3, live axle I 4, live axle II 10, unidirectional whirligig I 5 and unidirectional whirligig II 9, eccentric cam I 6, eccentric cam II 11, connecting rod 7, camshaft bearing 8, spring bearing 13.
When motor 1 folk prescription to when rotation, only drive one of them running of live axle I 4 and live axle II 10.Specific as follows: when motor 1 is rotated in the forward, the unilateral bearing II in the live axle II 10 are driven, and transferring power is given the eccentric cam II 11 on the live axle II 10 thus, 12 work of pump II, and the unilateral bearing I in the live axle I 4 is motionless, and pump I 14 is not worked, and realizes the isolated operation of double pump thus.Otherwise, motor 1 counterrotating, unilateral bearing II in the live axle II 10 is motionless, transferring power is not given the eccentric cam II 11 on the live axle II 10, pump II 12 is not worked, and the unilateral bearing I in the live axle I 4 is driven, and outputting power is given the eccentric cam I 6 on the live axle I 4,14 work of pump I realize that thus the working state of double pump is switched.
As another form of driving mechanism of the present invention, as shown in Figure 3.Motor 1 is installed between pump I 14 and the pump II 12, and motor 1 two ends are stretched out motor shaft 2a, 2b respectively, and the unilateral bearing I is installed in two identical live axle III 15 with opposite direction respectively with the unilateral bearing II.Four spring bearings 13 are installed in bearing race 16a, 16b, 16c and the 16d on the carriage 3, as shown in Figure 4.Driving among its working principle and Fig. 1 is described similar.
Claims (7)
1. the driving mechanism of a double pump comprises carriage, motor, motor shaft, live axle, eccentric cam, it is characterized in that: described motor is installed on the carriage, also is provided with two pumps on the described carriage; The motor shaft of described motor is provided with two opposed unidirectional whirligigs, drives each self-corresponding live axle respectively, and power is passed to each self-corresponding eccentric cam respectively, and described eccentric cam drives each self-corresponding pump respectively.
2. the driving mechanism of double pump according to claim 1 is characterized in that: the single-ended outputting power of described motor shaft; Motor is installed in a 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 installed between two pumps.
4. according to the driving mechanism of claim 1,2 or 3 described double pumps, it is characterized in that: install with the coaxial close-fitting of shaft center endoporus separately respectively the outer ring of described unidirectional whirligig.
5. according to the driving mechanism of claim 1,2 or 3 described double pumps, it is characterized in that: the cylindrical close-fitting of described eccentric cam is installed in 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 the outer disk of a side of connecting rod is connected with described pump by screw respectively.
6. the driving mechanism of double pump according to claim 2, it is characterized in that: described carriage is provided with spring bearing, is used for supporting driving shaft, and motor near-end live axle adopts single-ended support, and motor far-end live axle adopts both-end to support.
7. the driving mechanism of double pump according to claim 3 is characterized in that: described carriage is provided with spring bearing and is used 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 true CN103291579A (en) | 2013-09-11 |
| CN103291579B CN103291579B (en) | 2015-09-16 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103291579B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004107534A1 (en) * | 2003-06-03 | 2004-12-09 | Marino Pedrazzini Bertolazzi | A multi-purpose machine with two operating devices actuated by a single electric motor |
| 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 |
-
2013
- 2013-06-13 CN CN201310234355.2A patent/CN103291579B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004107534A1 (en) * | 2003-06-03 | 2004-12-09 | Marino Pedrazzini Bertolazzi | A multi-purpose machine with two operating devices actuated by a single electric motor |
| 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 |
|---|---|
| CN103291579B (en) | 2015-09-16 |
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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 |