CN107255073A - A kind of electric motor built-in gear pump - Google Patents
A kind of electric motor built-in gear pump Download PDFInfo
- Publication number
- CN107255073A CN107255073A CN201710488339.4A CN201710488339A CN107255073A CN 107255073 A CN107255073 A CN 107255073A CN 201710488339 A CN201710488339 A CN 201710488339A CN 107255073 A CN107255073 A CN 107255073A
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- China
- Prior art keywords
- gear
- pump
- motor
- chamber
- active
- 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.)
- Granted
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Classifications
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
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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
- F04C11/008—Enclosed motor pump units
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of electric motor built-in gear pump, in the gear pump being made up of two swiveling gears, by the way that external rotor electric machine has been inserted into driving gear inner chamber, gear pump motor is integrated with the pump housing, makes the more compact structure of gear pump rationally perfect.The reduction of body not only meets the demand that some specific small spaces are used, but also has evaded additional energy loss, parts loss, pressure pulse and the noise produced because dynamical system couples input radial load completely.
Description
Technical field
The present invention relates to a kind of oil pump, more particularly to a kind of gear pump, belong to machining tools art.
Background technology
Gear pump is that rotation is mutually nibbled with two gears come the oil pump of work, and gear pump is in the pump housing equipped with a pair of rotary teeths
Wheel, an active, one is passive, by the intermeshing of two gears, is divided to two independent parts the whole working chamber in pump：
A is suction chamber, and B is discharge chamber.Driving gear drives driven gear rotation to gear oil pump in the running, when gear is de- from being engaged to
In suction side when opening（A）Parital vacuum is just formed, liquid is inhaled into.The liquid being inhaled into is full of each tooth paddy of gear and taken to
Discharge side（B）, gear enter engagement when liquid be extruded, formed highly pressurised liquid and through pump discharge excavationg pump outside.Existing tooth
A motor is installed in wheel pump, the outside of its pump housing, then makes motor shaft coaxial with driving gear shaft, realizes that power is transmitted.It is such
Oil pump volume is big, and the axiality of motor and driving gear is also required that higher, easily produces axle vibrations and causes the damage of pump.
The content of the invention
The present invention is accomplished in the following manner：A kind of electric motor built-in gear pump, equipped with a pair of revolutions in the pump housing
Gear, an active, one is passive, the intermeshing of two gears, is divided to two independent parts the whole working chamber in pump, A is
Suction chamber, B is discharge chamber, and driving gear drives driven gear rotation to gear oil pump in the running, it is characterised in that actively turn round
The inner chamber of gear is set to cavity, and magnet steel is pasted on its inner peripheral wall, and cavity constitutes the outer rotor of motor, cavity internal axle sleeve with magnet steel
Enter the inner stator of motor, the coil windings of motor are placed on inner stator, motor shaft is fixed on pump body sidewall, active swiveling gear
Closed with motor shaft contact position with oil sealing at the two ends of inner chamber.
Described active swiveling gear is in tubbiness, is made up of a hollow gear and a piece of side cover plate, its latus inframedium
Center be processed into one not through axis hole, by side plate by active swiveling gear one end close, pump is fixed in one end of motor shaft
The side of body, the other end is assigned into the axis hole of side plate.
Electric control chamber is set on the outside of described pump body sidewall, the control board of motor is placed in electric control chamber, and machine winding is led
Line is connected after passing through motor shaft with electric-controlled plate.
Because the present invention by external rotor electric machine by having inserted driving gear inner chamber, gear pump motor is combined into one with the pump housing
Body, makes the more compact structure of gear pump rationally perfect, and the reduction of body not only meets the demand that some specific small spaces are used,
But also evaded the additional energy loss produced because dynamical system couples input radial load, parts loss, pressure arteries and veins completely
Punching and noise.
Brief description of the drawings
Fig. 1 is positive structure schematic of the invention；
Fig. 2 is side structure schematic diagram of the invention；
Fig. 3 is the structural representation of the active swiveling gear of the present invention；
Fig. 4 is the side structure schematic diagram of second embodiment of the present invention；
Fig. 5 is electric control chamber part-structure schematic diagram of the invention.
Embodiment
Embodiment 1：As shown in figure 1, equipped with a pair of swiveling gears in the pump housing 1 of oil pump, one is active swiveling gear
2, one is passive swiveling gear 6, and the whole working chamber in pump is divided to two independent parts, A by the intermeshing of two swiveling gears
For suction chamber 5, B is discharge chamber 7, and active swiveling gear 2 drives passive swiveling gear 6 to rotate to gear oil pump in the running.
As shown in Figure 2,3, set the axis hole not run through on the lateral body of the pump housing 1, active swiveling gear 2 in a tubular form, sideways with one
Block side plate 10 is closed, and is made at a kind of tubbiness, the outside axis of side plate 10 provided with prominent axle 11 as fulcrum, is made
Turn into be provided with pivot point, the inner side axis of side plate 10 with the shaft hole matching not run through on the outer casing inner wall of the pump housing 1 and do not run through
Axis hole 12, paste in magnet steel 3, cavity on the perisporium of cavity and be inserted in motor shaft 8, one end of motor shaft 8 is fixed on the axle of the pump housing
Kong Shang, the other end is arranged in the axis hole 12 at the center of side plate 10, with the formation rotatable engagement relation of active swiveling gear 2.So, protect
Isolating for motor shaft 8 and the shell of the pump housing 1 has been demonstrate,proved, the possibility of the side oil leak of active swiveling gear 2 is reduced.
The two ends of passive swiveling gear set prominent axle, are installed in the axis hole on the lateral body of the pump housing 1, outer end closing, prevent
Oil leak.
The stator coil winding 4 of motor is placed on motor shaft 8, and one end that active swiveling gear 2 is open is closed with end face lid,
End face lid is closed with motor fixing shaft contact position with oil sealing 9.
As shown in figure 4, setting electric control chamber 14 on the outside of the side wall of the pump housing 1, the plate of control circuit 13 of motor is placed in electric control chamber 14,
The axis of motor shaft 8 is provided with conduit 15, the wire on coil of stator of motor winding through after the conduit 15 on motor shaft with access
On electric-controlled plate 13.
Embodiment 2：As shown in figure 5, equipped with a pair of swiveling gears in the pump housing 1 of oil pump, one is active swiveling gear
2, one is passive swiveling gear 6, and two swiveling gears are intermeshed, by the whole working chamber in pump in two sub-sections --- suction
Chamber 5 and discharge chamber 7, active swiveling gear 2 drives passive swiveling gear 6 to rotate to gear oil pump in the running.
Axis hole is set with the corresponding section of active swiveling gear 2 on the lateral body of the pump housing 1, the axis hole is to be fixedly mounted motor shaft 8.
The embedded SMA actuators of active swiveling gear 2 are into a kind of tubbiness, and bottom wall, which is provided with axis hole, the perisporium of inner chamber, pastes magnet steel 3,
The rotating shaft of motor passes through the axis hole of the bottom wall of active swiveling gear 2, is fixed with the axis hole on the side wall of the pump housing 1.
The axis hole of active swiveling gear 2 is closed with the contact position of motor shaft 8 with oil sealing 9.
The two ends of passive swiveling gear 6 set prominent axle, are set on the lateral body for being installed on the pump housing 1 in the axis hole not run through.
The stator coil winding 4 of motor is placed on motor shaft, and power outlet is drawn outside the pump housing 1 by motor shaft 8.Actively
One end that swiveling gear 2 is open is closed with end face lid, and end face lid is closed with motor fixing shaft contact position with oil sealing 9.
When the pump housing 1 works, the external rotor electric machine being installed on motor shaft 8 promotes active swiveling gear 2 to rotate, and with this band
The rotation of passive swiveling gear 6 is moved, in two swiveling gears are rotated through, pump action is produced to liquid.
Claims (3)
1. a kind of electric motor built-in gear pump, equipped with a pair of swiveling gears in the pump housing, an active, one is passive, two gears
Intermeshing, is divided to two independent parts the whole working chamber in pump, and A is suction chamber, and B is discharge chamber, and gear oil pump is in fortune
Driving gear drives driven gear rotation when turning, it is characterised in that the inner chamber of active swiveling gear is set to cavity, its inner peripheral wall
Upper stickup magnet steel, cavity constitutes the outer rotor of motor with magnet steel, and cavity interior axle is inserted in the inner stator of motor, the coil windings of motor
It is placed on inner stator, motor shaft is fixed on pump body sidewall, two ends and the motor shaft contact position oil of the inner chamber of active swiveling gear
Envelope closing.
2. electric motor built-in gear pump as claimed in claim 1, it is in tubbiness to be further characterized in that described active swiveling gear,
Be made up of a hollow gear and a piece of side cover plate, the center of its latus inframedium be processed into one not through axis hole, by side plate
By the closing of active swiveling gear one end, the side of the pump housing is fixed in one end of motor shaft, and the other end is assigned into the axis hole of side plate.
3. electric motor built-in gear pump as claimed in claim 1, is further characterized in that on the outside of pump body sidewall and sets electric control chamber, electricity
The control board of machine is placed in electric control chamber, and described motor axis in axis is provided with leading on conduit, the stator coil winding of motor
Line is connected after passing through the conduit on motor shaft with electric-controlled plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488339.4A CN107255073B (en) | 2017-06-23 | 2017-06-23 | Motor built-in gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710488339.4A CN107255073B (en) | 2017-06-23 | 2017-06-23 | Motor built-in gear pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107255073A true CN107255073A (en) | 2017-10-17 |
| CN107255073B CN107255073B (en) | 2020-05-08 |
Family
ID=60024256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710488339.4A Active CN107255073B (en) | 2017-06-23 | 2017-06-23 | Motor built-in gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107255073B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345069A (en) * | 2019-08-19 | 2019-10-18 | 成都灏弘科技有限公司 | A kind of motor and the integrated novel lobe pump of the pump housing |
| WO2020009562A1 (en) * | 2018-07-03 | 2020-01-09 | Instituto Politecnico Nacional | Positive hydraulic displacement pump with magnetic drive |
| CN115183046A (en) * | 2022-09-13 | 2022-10-14 | 浙江大学高端装备研究院 | Compact electro-hydraulic drive actuator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2564778Y (en) * | 2002-04-29 | 2003-08-06 | 烟台电机有限公司 | Unit construction gear oil pump motor |
| US7156623B2 (en) * | 2002-03-13 | 2007-01-02 | Aisin Seiki Kabushiki Kaisha | Electric oil pump apparatus |
| CN1928364A (en) * | 2006-08-15 | 2007-03-14 | 兰州理工大学 | Hydraulic engine gear pump |
| CN101111681A (en) * | 2005-05-31 | 2008-01-23 | 株式会社日立制作所 | Motor-integrated internal gear pump, method of producing the gear pump, and electronic apparatus |
| DE102009045030A1 (en) * | 2009-09-25 | 2011-03-31 | Robert Bosch Gmbh | Gear pump for injection system, particularly for motor vehicle, has electric motor for supplying fluid, gear wheel with cogs and working room |
| CN202867199U (en) * | 2012-09-26 | 2013-04-10 | 天津特精华德液压技术开发有限公司 | External-meshing gear pump |
| CN206942993U (en) * | 2017-06-23 | 2018-01-30 | 浙江乾麟缝制设备有限公司 | A kind of electric motor built-in gear pump |
-
2017
- 2017-06-23 CN CN201710488339.4A patent/CN107255073B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156623B2 (en) * | 2002-03-13 | 2007-01-02 | Aisin Seiki Kabushiki Kaisha | Electric oil pump apparatus |
| CN2564778Y (en) * | 2002-04-29 | 2003-08-06 | 烟台电机有限公司 | Unit construction gear oil pump motor |
| CN101111681A (en) * | 2005-05-31 | 2008-01-23 | 株式会社日立制作所 | Motor-integrated internal gear pump, method of producing the gear pump, and electronic apparatus |
| CN1928364A (en) * | 2006-08-15 | 2007-03-14 | 兰州理工大学 | Hydraulic engine gear pump |
| DE102009045030A1 (en) * | 2009-09-25 | 2011-03-31 | Robert Bosch Gmbh | Gear pump for injection system, particularly for motor vehicle, has electric motor for supplying fluid, gear wheel with cogs and working room |
| CN202867199U (en) * | 2012-09-26 | 2013-04-10 | 天津特精华德液压技术开发有限公司 | External-meshing gear pump |
| CN206942993U (en) * | 2017-06-23 | 2018-01-30 | 浙江乾麟缝制设备有限公司 | A kind of electric motor built-in gear pump |
Non-Patent Citations (2)
| Title |
|---|
| 中国机械工业年鉴编辑委员会，中国电器工业协会: "《中国电器工业年鉴》", 29 February 2012 * |
| 职业技术教育培训教材编审委员会: "《助力自行车维修 中级》", 31 December 1996 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020009562A1 (en) * | 2018-07-03 | 2020-01-09 | Instituto Politecnico Nacional | Positive hydraulic displacement pump with magnetic drive |
| CN110345069A (en) * | 2019-08-19 | 2019-10-18 | 成都灏弘科技有限公司 | A kind of motor and the integrated novel lobe pump of the pump housing |
| CN115183046A (en) * | 2022-09-13 | 2022-10-14 | 浙江大学高端装备研究院 | Compact electro-hydraulic drive actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107255073B (en) | 2020-05-08 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A motor built-in gear pump Effective date of registration: 20220906 Granted publication date: 20200508 Pledgee: Bank of China Limited Lishui Branch Pledgor: ZHEJIANG CHEERING SEWING MACHINE CO.,LTD. Registration number: Y2022980014550 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |