CN208564892U - A kind of two inclined plate plunger type motor pump - Google Patents
A kind of two inclined plate plunger type motor pump Download PDFInfo
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- CN208564892U CN208564892U CN201820836064.9U CN201820836064U CN208564892U CN 208564892 U CN208564892 U CN 208564892U CN 201820836064 U CN201820836064 U CN 201820836064U CN 208564892 U CN208564892 U CN 208564892U
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- inclined plate
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Abstract
The utility model provides a kind of two inclined plate plunger type motor pump, belong to axial plunger pump field, including motor housing, left end cap, right end cap, motor stator, rotor, cylinder body, left swash plate, right swash plate, left return mechanism, right return mechanism, multiple plunger piston slippery boots groups, flat valve etc..Multiple plunger piston slippery boots groups and flat valve constitute multiple plunger pumps.The rotor key connecting of cylinder body and motor, as rotor rotates synchronously, two inclined plate is stationary, and plunger pump moves under the effect of the progressive error caused by two inclined plate along two inclined plate, moves back and forth, medium is promoted to enter flat valve and extruded by flat valve.The utility model is small in size, discharge capacity is big, power density is high, highly integrated motor and plunger pump, keeps its structure simpler, effectively reduces the rate of breakdown of electric-motor pump, fast response time.
Description
Technical field
The utility model belongs to axial plunger hydraulic pump field, more particularly, to a kind of two inclined plate plunger type motor pump.
Background technique
With the continuous improvement of world industry level, Modern hydraulic drive technology is gradually to integrated, digital development.More
Need that volume is smaller, more powerful, flow is bigger, Hydraulic power units of longer life expectancy fulfils assignment come more occasions.
Axial plunger electric-motor pump has many advantages, such as that high-efficient, running parameter is high, different medium can be used, but its discharge capacity is tight
Lattice are controlled by the size and number of plunger, and traditional plunger distribution and flow mode can not achieve that volume is smaller, discharge capacity is bigger
Demand.
Under the resistant to pollution overall situation of current All Around The World energy conservation, water hydrostatic transmission has become " favorite " on hydraulic boundary.
It is applied to water as working media in axial plunger pump, complicated oil-water separating structure is not used, then in the operating of pump
Service life of journey rolling bearing can because radial force there are due to serious curtailment, so that the service life of axial plunger pump be forced to decrease.
Utility model content
Aiming at the above defects or improvement requirements of the prior art, the utility model provides a kind of two inclined plate plunger type motor
Pump, its object is to realize the demand that volume is smaller, discharge capacity is bigger by improving plunger and flat valve group distribution mode.
To achieve the goals above, the utility model provides a kind of two inclined plate plunger type motor pump, comprising: motor and liquid
Press pump；
Motor includes motor housing, motor stator and rotor；
Hydraulic pump includes cylinder body, left swash plate, right swash plate and multiple plunger pumps；
Cylinder body is connect and coaxially arranged with rotor, and is rotated synchronously with rotor；Left swash plate and right swash plate difference
It is mounted on motor housing left and right ends；
Each plunger pump includes a flow valve group and left plunger, the right plunger for being respectively arranged on flow valve group left and right ends；
Multiple plunger pumps are uniformly distributed along the circumferential direction of cylinder body is fixed on cylinder interior；
Left swash plate is equipped with quantity and position and each left plunger left piston shoes correspondingly, and right swash plate is equipped with quantity and position
It sets and each right plunger right piston shoes correspondingly；
When cylinder body is moved with rotor synchronous rotary, make in the guiding of left swash plate, right swash plate and left piston shoes, right piston shoes
Under, each left plunger, right plunger make periodic reverse motion, so that the plunger cavity volume generating period of flow valve group left and right ends
Property variation, to realize the sucking and extrusion of medium.
Further, flow valve group includes tubular valve body and four check valves being installed on tubular valve body；Four unidirectional
Valve is divided into two inlet valves, two discharge vans；
Inlet valve includes sucking valve support, inlet valve flap, inhalation valve spring and inlet valve valve port；Sucking valve support is set to
On tubular valve body side wall, inlet valve valve port is opened in sucking valve support opposite side；Inhalation valve spring both ends abut inlet valve respectively
Support and inlet valve flap；Inlet valve flap is set on the inside of inlet valve valve port, for closing and opening inlet valve valve port；
Discharge van includes extruding valve support, discharge van valve rod, discharge van flap, discharge van valve port and extruding valve spring；Pressure
Valve support is set on tubular valve body side wall out, and discharge van valve port, which is opened in, extrudes valve support opposite side；Discharge van flap is set to pressure
Out on the outside of valve valve port；Discharge van valve rod one end connects discharge van flap, and the other end, which is arranged and is equipped with towards extrusion valve support, to be extruded
Valve spring retainer；Discharge van spring one end abuts discharge van valve port interior sidewall surface, and the other end, which abuts, extrudes valve spring retainer；
Inhalation valve spring and extrusion valve spring are compressed spring；Inlet valve valve port and discharge van valve port are towards in cylinder body
The medium runner in portion is arranged；The medium runner of cylinder interior separates between inlet valve valve port and discharge van valve port.
Further, centrifugal impeller is equipped in the medium runner of cylinder interior, centrifugal impeller is located at inlet valve front end.
Further, centrifugal impeller and medium runner are integrally formed.
The secondary objective of the utility model is that reducing radial force influences, and prolongs the service life, in order to realize the purpose, into
One step, cylinder body both ends are supported using the first tapered roller bearing, hydrostatic bearing or hydrodynamic bearing.
Further, right swash plate is supported using deep groove ball bearing and the second tapered roller bearing.
It further, further include left flexural pivot, right flexural pivot and butterfly spring；
Left flexural pivot, butterfly spring are located on the left of the partition of cylinder body medium runner, open up among left flexural pivot left end and left swash plate
Circular hole cooperation, butterfly spring be set to left flexural pivot right end；Right flexural pivot is located on the right side of the partition of cylinder body medium runner, right flexural pivot right end
Cooperate with the circular hole opened up among right swash plate.
Further, cylinder body right side is equipped with along the uniformly distributed multiple blind holes of medium runner exterior circumferential, right flexural pivot left end
Multiple right retracting springs, one-to-one correspondence are placed in each blind hole.
In general, the utility model is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) this plunger electric-motor pump cooperates circumference layout designs by two inclined plate, realizes the Integrated design of multipe plunger pump, volume
It is small, flow is big, power density is high.
(2) this plunger electric-motor pump is designed using centrifugal impeller, is played CENTRIFUGAL ACCELERATING to the liquid for entering inlet valve ante-chamber and is made
With achieving the effect that forced feed.This is designed so that flat valve response speed when opening faster, improves the energy of plunger cavity
Transfer efficiency, to also improve whole volumetric efficiency and increase discharge capacity.
(3) cylinder body both ends are supported using large scale tapered roller bearing, and large scale tapered roller bearing can bear biggish
Radial load and axial load make electric-motor pump have excellent starting performance and bearing capacity, and operational effect is reliable steady and is convenient for
Maintenance.
(4) in this plunger electric-motor pump, flow valve group uses two inlet valves and two discharge vans, the single suction with the prior art
Enter, single discharge van is compared, lower to the intensity requirement of single valve in same flow area, therefore valve can be reduced
Core volume is to mitigate the quality of spool, so that flat valve response speed is accelerated.Also, more valves and with have good compatibility
Property, even if one of valve plug plug, failure, another valve remains to undertake corresponding work, substantially increases service life and ring
Border adaptability.
Detailed description of the invention
Fig. 1 is the cross-sectional view at the main view visual angle of the utility model；
Fig. 2 is the exploded view of plunger pump in Fig. 1；
Fig. 3 is the I enlarged drawing of Fig. 1；
Fig. 4 is the II enlarged drawing of Fig. 1；
Fig. 5 is the A-A cross-sectional view of Fig. 1；
Fig. 6 is flow valve group schematic diagram, wherein (a) is cross-sectional view, it (b) is bottom view.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
In figure: 1- left end cap, the left swash plate of 2-, the left flexural pivot of 3-, 4- compression plate, the left plunger bushing of 5-, 6- flow valve group, 7- cylinder
Body, 8- right plunger set, the first tapered roller bearing of 9-, 10- deep groove ball bearing, the second tapered roller bearing of 11-, 12- are right tiltedly
Disk, 13- fuel discharge port body, 14- mechanical seal spring, 15- return plate, the right flexural pivot of 16-, 17- plunger assembly, the right backhaul of 18-
Spring, 19- motor stator, 20- rotor, 21- butterfly spring, 22- right end cap, 23- tubular valve body, 24- inlet valve branch
Seat, 25- inlet valve flap, 26- sealing ring, 27- inhalation valve spring, 28- inlet valve valve port, 29- extrude valve support, and 30- is extruded
Valve valve rod, 31- discharge van flap, 32- extrusion valve spring retainer, 33- discharge van valve port, 34- valve stem sleeve, 35- extrude valve spring,
The left plunger of 36-, 37- right plunger.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
With reference to FIG. 1 to FIG. 4, a kind of two inclined plate plunger type motor pump provided by the utility model is broadly divided into motor and liquid
Two parts of press pump.Motor part includes motor housing, left end cap 1, right end cap, motor stator 19, rotor 20；Hydraulic pump portion
It mainly include cylinder body 7, left swash plate 2, right swash plate 12, compression plate 4 and left plunger bushing 5, return plate 15 and right flexural pivot 16, multiple plungers
The devices such as piston shoes 17, flow valve group 6.
The rotor 20 and the key connecting of cylinder body 7, swash plate 2 and 12 are screwed on the end cap of left and right, described oblique
Disk inclination angle is 16 °；6 Front-end Design of inlet valve used in electric-motor pump, one easy impeller is included in cylinder body 7, the impeller with
Cylinder body 7 rotate, liquid obtains centrifugal force and helps it into flow valve group 6；Flow valve group 6 is made of four check valves, wherein
Two inlet valves, two discharge vans；Cylinder body 7 is supported by a pair of identical tapered roller bearing 9, diameter suffered by cylinder body 7 in plunger pump
To power by this to tapered roller bearing shared, tapered roller bearing 9 bears most of axial force and radial force.
With reference to Fig. 3 and Fig. 5, centrifugal impeller structure is designed inside cylinder body, liquid is before entering flat valve with centrifugation
Impeller rotates together acquisition centrifugal force, this centrifugal force facilitates the unlatching of inlet valve, is similar to supercharging device.This design makes
Inlet valve response speed when opening is obtained faster, to improve whole volumetric efficiency and increase discharge capacity.
The flow valve group 6 is directly mounted in the plunger hole on cylinder body 7, and each pair of left and right plunger shares one group of flat valve,
Realize the loop cycle movement of sucking and the extrusion of plunger pump；
With reference to Fig. 3~6, flow valve group 6 is made of four check valves, two discharge vans of two of them inlet valve.Certain
Flow area in the case of, a spool is changed to two spools, reduces the quality of spool, and accelerate flat valve open when
Response speed.
The course of work of this example are as follows:
With reference to Fig. 1, Fig. 3 and Fig. 6, after being powered up, rotor drives cylinder body 7 to revolve clockwise to motor by key connecting
Transhipment is dynamic, and under the collective effect of left swash plate 2, right swash plate 12 and each spring return mechanism, each plunger is to 17 in plunger hole
Execution cycle property moves back and forth, so that each plunger hole forms the alternate pressure field of height.With the rotation of cylinder body 7, work as plunger
Chamber volume constantly expands, and when being in the low pressure field of force, the sucking flap 25 of flat valve 6 is opened up, as shown in fig. 6, liquid is from a left side
End flows into corresponding plunger cavity, completes the suction process of plunger pump.Continue to rotate with cylinder body 7, when completion suction action
Plunger cavity volume constantly reduces, and when being in the high pressure field of force, the flap 25 of inlet valve is closed and compressed downwards, and highly pressurised liquid opens
The flap 31 of discharge van, extrudes from plunger cavity through discharge van, realizes the extrusion movement of plunger pump.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of two inclined plate plunger type motor pump characterized by comprising motor and hydraulic pump；
Motor includes motor housing, motor stator (19) and rotor (20)；
Hydraulic pump includes cylinder body (7), left swash plate (2), right swash plate (12) and multiple plunger pumps；
Cylinder body (7) is connect and coaxially arranged with rotor (20), and is rotated synchronously with rotor (20)；Left swash plate (2) and
Right swash plate (12) is separately mounted to motor housing left and right ends；
Each plunger pump includes a flow valve group (6) and the left plunger (36) for being respectively arranged on flow valve group (6) left and right ends, the right side
Plunger (37)；Multiple plunger pumps are uniformly distributed along the circumferential direction of cylinder body (7) is fixed on cylinder body (7) inside；
Left swash plate (2) is equipped with quantity and position and the one-to-one left piston shoes of each left plunger (36), and right swash plate (12) is equipped with
The one-to-one right piston shoes of quantity and position and each right plunger (37)；
When cylinder body (7) is moved with rotor (20) synchronous rotary, in left swash plate (2), right swash plate (12) and left piston shoes, right cunning
Under the guide function of boots, each left plunger (36), right plunger (37) make periodic reverse motion, so that flow valve group (6) left and right two
The plunger cavity volume generating period at end changes, to realize the sucking and extrusion of medium.
2. a kind of two inclined plate plunger type motor pump as described in claim 1, it is characterised in that: flow valve group (6) includes tubulose
Valve body (23) and four check valves being installed on tubular valve body (23)；Four check valves are divided into two inlet valves, two extrusion
Valve；
Inlet valve includes sucking valve support (24), inlet valve flap (25), inhalation valve spring (26) and inlet valve valve port (27)；It inhales
Enter valve support (24) on tubular valve body (23) side wall, inlet valve valve port (27) is opened in sucking valve support (24) opposite side；
Inhalation valve spring (26) both ends abut sucking valve support (24) and inlet valve flap (25) respectively；Inlet valve flap (25), which is set to, to be inhaled
Enter on the inside of valve valve port (27), for closing and opening inlet valve valve port (27)；
Discharge van includes extruding valve support (29), discharge van valve rod (30), discharge van flap (31), discharge van valve port (33) and pressure
Valve spring (35) out；It extrudes valve support (29) to be set on tubular valve body (23) side wall, discharge van valve port (33) is opened in discharge van
Support (29) opposite side；Discharge van flap (31) is set on the outside of discharge van valve port (33)；Discharge van valve rod (30) one end connection pressure
Valve flap (31) out, the other end are arranged and towards valve support (29) are extruded equipped with extrusion valve spring retainer (32)；Extrude valve spring
(35) one end abuts discharge van valve port (33) interior sidewall surface, and the other end, which abuts, extrudes valve spring retainer (32)；
Inhalation valve spring (26) and extrusion valve spring (35) are compressed spring；Inlet valve valve port (27) and discharge van valve port (33)
Medium runner setting internal towards cylinder body (7)；The internal medium runner of cylinder body (7) is in inlet valve valve port (27) and discharge van
Valve port separates between (33).
3. a kind of two inclined plate plunger type motor pump as claimed in claim 1 or 2, which is characterized in that in internal Jie of cylinder body (7)
Centrifugal impeller is equipped in mass flow road, centrifugal impeller is located at inlet valve front end.
4. a kind of two inclined plate plunger type motor pump as claimed in claim 3, which is characterized in that centrifugal impeller and medium runner one
It is body formed.
5. a kind of two inclined plate plunger type motor pump as described in claim 1, which is characterized in that cylinder body (7) both ends use first
Tapered roller bearing (9), hydrostatic bearing or hydrodynamic bearing support.
6. a kind of two inclined plate plunger type motor pump as claimed in claim 1 or 5, which is characterized in that right swash plate (12) uses deep
Ditch ball bearing (10) and the second tapered roller bearing (11) support.
7. a kind of two inclined plate plunger type motor pump as described in claim 1, which is characterized in that further include left flexural pivot (3), right ball
Cut with scissors (16) and butterfly spring (21)；
Left flexural pivot (3), butterfly spring (21) are located on the left of the partition of cylinder body (7) medium runner, left flexural pivot (3) left end and left swash plate
(2) the intermediate circular hole cooperation opened up, butterfly spring (21) are set to left flexural pivot (3) right end；Right flexural pivot (16) is located at cylinder body (7) medium
On the right side of the partition of runner, the circular hole opened up among right flexural pivot (16) right end and right swash plate (12) cooperates.
8. a kind of two inclined plate plunger type motor pump as claimed in claim 7, which is characterized in that cylinder body (7) right side is along medium
The uniformly distributed multiple blind holes of runner exterior circumferential, right flexural pivot (16) left end are equipped with multiple right retracting springs (18), and one-to-one correspondence is set
In each blind hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836064.9U CN208564892U (en) | 2018-05-31 | 2018-05-31 | A kind of two inclined plate plunger type motor pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820836064.9U CN208564892U (en) | 2018-05-31 | 2018-05-31 | A kind of two inclined plate plunger type motor pump |
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| Publication Number | Publication Date |
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| CN208564892U true CN208564892U (en) | 2019-03-01 |
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| CN201820836064.9U Active CN208564892U (en) | 2018-05-31 | 2018-05-31 | A kind of two inclined plate plunger type motor pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757373A (en) * | 2018-05-31 | 2018-11-06 | 华中科技大学 | A kind of two inclined plate plunger type motor pump |
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2018
- 2018-05-31 CN CN201820836064.9U patent/CN208564892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757373A (en) * | 2018-05-31 | 2018-11-06 | 华中科技大学 | A kind of two inclined plate plunger type motor pump |
| CN108757373B (en) * | 2018-05-31 | 2024-03-26 | 华中科技大学 | Double-sloping cam plate plunger type motor pump |
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