CN206942993U - A kind of electric motor built-in gear pump - Google Patents
A kind of electric motor built-in gear pump Download PDFInfo
- Publication number
- CN206942993U CN206942993U CN201720739797.6U CN201720739797U CN206942993U CN 206942993 U CN206942993 U CN 206942993U CN 201720739797 U CN201720739797 U CN 201720739797U CN 206942993 U CN206942993 U CN 206942993U
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- China
- Prior art keywords
- gear
- pump
- motor
- chamber
- active
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of electric motor built-in gear pump, and 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 needs of some specific small spaces use, but also evaded completely because dynamical system couples input radial load and caused by additional energy loss, parts loss, pressure pulse and noise.
Description
Technical field
A kind of oil pump, more particularly to a kind of gear pump are the utility model is related to, belongs 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 equipped with a pair of rotary teeths in the pump housing
Wheel, an active, one 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）With regard to forming parital vacuum, 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
Wheel pump, a motor is installed in the outside of its pump housing, then makes motor shaft coaxial with driving gear shaft, realizes that power transmits.It is such
Oil pump volume is big, and also requires the axiality of motor and driving gear higher, easily produces axle vibrations and causes the damage of pump.
The content of the invention
The utility model is accomplished in the following manner：A kind of electric motor built-in gear pump, it is equipped with a pair in the pump housing
Swiveling 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, and B is discharge chamber, and driving gear drives driven gear rotation to gear oil pump in the running, it is characterised in that actively
The inner chamber of swiveling gear is set to cavity, pastes magnet steel on its inner peripheral wall, and cavity forms the outer rotor of motor with magnet steel, in cavity
Axle sleeve enters the inner stator of motor, and the coil windings of motor are placed on inner stator, and motor shaft is fixed on pump housing side wall, active rotary teeth
Closed with motor shaft contact position with oil sealing at the both ends of the inner chamber of wheel.
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 are assigned into the axis hole of side plate.
Electric control chamber is set on the outside of described pump housing side wall, 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 utility model by external rotor electric machine by having inserted driving gear inner chamber, gear pump motor is combined into the pump housing
One, makes the more compact structure of gear pump rationally perfect, the reduction of body not only meets the need that some specific small spaces use
Ask, but also evaded completely because dynamical system couple input radial load and caused by additional energy loss, parts loss, pressure
Pulse and noise.
Brief description of the drawings
Fig. 1 is positive structure schematic of the present utility model；
Fig. 2 is side structure schematic diagram of the present utility model；
Fig. 3 is the structural representation of active swiveling gear of the present utility model；
Fig. 4 is the side structure schematic diagram of second embodiment of the present utility model；
Fig. 5 is electric control chamber part-structure schematic diagram of the present utility model.
Embodiment
Embodiment 1：As shown in figure 1, being 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, the intermeshing of two swiveling gears, is divided to the whole working chamber in pump to two independent parts, A
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, the axis hole not run through is set on the lateral body of the pump housing 1, in a tubular form, side is with one for active swiveling gear 2
Block side plate 10 is closed, and makes a kind of tubbiness, and prominent axle 11 is provided with the outside axis of side plate 10 and is used as fulcrum, is made
Turn into pivot point with the shaft hole matching not run through on the outer casing inner wall of the pump housing 1, be provided with the inner side axis of side plate 10 and do not run through
Axis hole 12, magnet steel 3 is pasted on the perisporium of cavity, is inserted in motor shaft 8 in cavity, one end of motor shaft 8 is fixed on the axle of the pump housing
Kong Shang, the other end are arranged in the axis hole 12 at the center of side plate 10, and rotatable engagement relation is formed with active swiveling gear 2.So, protect
Isolating for motor shaft 8 and the shell of the pump housing 1 has been demonstrate,proved, has reduced the possibility of the side oil leak of active swiveling gear 2.
The both 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, being 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 being fixedly mounted motor shaft 8.
For the embedded SMA actuators of active swiveling gear 2 into a kind of tubbiness, bottom wall is provided with axis hole, pastes magnet steel 3 on the perisporium of inner chamber,
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 in 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 both ends of passive swiveling gear 6 set prominent axle, are installed on the lateral body of the pump housing 1 and set 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 rotate through, pump action is produced to liquid.
Claims (3)
1. a kind of electric motor built-in gear pump, a pair of swiveling gears are housed in the pump housing, an active, one passive, two gears
Intermeshing, it is divided to two independent parts the whole working chamber in pump, A is suction chamber, and B is discharge chamber, and gear oil pump is being transported
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 form 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 housing side wall, both 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 further characterized in that described active swiveling gear is in tubbiness,
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
Active swiveling gear one end is closed, 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, it is further characterized in that on the outside of pump housing side wall 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 conduit, leading on 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 |
|---|---|---|---|
| CN201720739797.6U CN206942993U (en) | 2017-06-23 | 2017-06-23 | A kind of electric motor built-in gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720739797.6U CN206942993U (en) | 2017-06-23 | 2017-06-23 | A kind of electric motor built-in gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206942993U true CN206942993U (en) | 2018-01-30 |
Family
ID=61365164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720739797.6U Withdrawn - After Issue CN206942993U (en) | 2017-06-23 | 2017-06-23 | A kind of electric motor built-in gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206942993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255073A (en) * | 2017-06-23 | 2017-10-17 | 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 CN201720739797.6U patent/CN206942993U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255073A (en) * | 2017-06-23 | 2017-10-17 | 浙江乾麟缝制设备有限公司 | A kind of electric motor built-in gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20200508 |