CN104329232A - Integrated radial plunger pump driven by permanent magnet disc type electric machines - Google Patents
Integrated radial plunger pump driven by permanent magnet disc type electric machines Download PDFInfo
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- CN104329232A CN104329232A CN201410445525.6A CN201410445525A CN104329232A CN 104329232 A CN104329232 A CN 104329232A CN 201410445525 A CN201410445525 A CN 201410445525A CN 104329232 A CN104329232 A CN 104329232A
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Abstract
The invention relates to an integrated radial plunger pump driven by permanent magnet disc type electric machines. The integrated radial plunger pump comprises a pump shell, wherein a cam is arranged in the pump shell; two sides of the cam are tightly pressed by positioning sleeves respectively; a cylindrical lug boss is arranged on the inner side of each pump end cap, and a radial groove on which a stator winding is wound is formed in the inner side of each pump end cap; a current distribution shaft is fixed in the pump body; two ends of the current distribution shaft are respectively supported on a current distribution shaft sleeve and the second pump end cap; a shaft end gland is respectively arranged on the current distribution shaft sleeve and the second pump end cap and used for tightly pressing the two ends of the current distribution shaft; a rotor is supported on the current distribution shaft through a rolling bearing; radial grooves provided with permanent magnets are formed in two sides of the rotor; plunger holes are radially formed in the outer cylindrical surface of the rotor; connecting rod piston shoes are arranged on plungers; the bottom of each connecting piston shoe is an arc-shaped surface and is pressed inside the cam; the permanent magnet disc type electric machine is respectively arranged on each of two sides inside the pump. The integrated radial plunger pump adopts an integrated design of the electric machines and the pump and a through axis structure, is driven by the permanent magnet disc type electric machines and has the advantages of compact structure, simplicity in driving, balanced stress, running stability and high output power.
Description
Technical field
The invention belongs to radial plunger pump technical field, be specifically related to the radial plunger pump of the integral type that a kind of permanent magnet disc motor drives.
Background technique
Motor drives radial plunger pump to be conventionally in large hydraulic press provide the mode of power for system, because radial plunger pump has that delivery pressure is high, discharge capacity is large, volumetric efficiency is high and the advantage such as long service life, be widely used in the hydraulic system in the field such as forging and stamping, metallurgy, boats and ships.
Traditional radial plunger pump, the output shaft of motor is connected with the pintle of pump, drives the rotor motion in pump, by the offset between stator and rotor, make plunger radially to-and-fro motion, periodically change the volume of plunger cavity, and realize flow by certain flow-distribution mechanism.In this mode, the pintle of pump and the output shaft of motor are two independently parts, be fixed on the both sides of pump respectively in a cantilevered fashion, therefore cantilever end can produce certain amount of deflection, affect the cooperation between concentric axis hole, produce vibration & noise, aggravate the wearing and tearing of friction pair on axle and rotor simultaneously.Because motor and pump are two individual components, therefore need the concentricity of the pintle of accurate adjustment pump and the output shaft of motor when mounted, installation difficulty is large; Or adopt flexible coupling to connect, but this can cause the loss of energy.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the invention is to propose the radial plunger pump of the integral type that a kind of permanent magnet disc motor drives, there is compact structure, transmission is simple, stress balance, stable working, output power are high advantage.
In order to achieve the above object, the technological scheme that the present invention takes is:
The radial plunger pump of the integral type that a kind of permanent magnet disc motor drives, comprise pump case 1, cam 2 is arranged in pump case 1, circumference is realized fixing by the first key 30, cam 2 is ring parts, between the circular hole of its inside and external cylindrical surface, there is offset, cam 2 both sides are compressed by the first abutment sleeve 28 and the second abutment sleeve 3 respectively, realize axial restraint, first pump end cap 27 and the second pump end cap 4 are arranged on the two ends of pump case 1 respectively, their seam compresses the first abutment sleeve 28 and the second abutment sleeve 3 respectively, first pump end cap 27 and the second pump end cap 4 are all provided with columniform boss on the side of pump case 1 inside, and be processed with plural radial groove, staor winding 5 is wound with in each groove, form the stator of motor respectively, the coil of staor winding 5 is connected with external circuit with the second winding wire-feeding hold 13 with the first winding wire-feeding hold 18 on the second pump end cap 4 respectively by the first pump end cap 27, flow axle sleeve 25 is fixedly mounted on the first pump end cap 27, pintle 11 is fixed in the pump housing, two ends are bearing on flow axle sleeve 25 and the second pump end cap 4 respectively, and it is fixing to realize circumference by the second key 10, first axle head gland 24 and the second axle head gland 9 are arranged on flow axle sleeve 25 and the second pump end cap 4 respectively, pintle 11 two ends are compressed, realizes axial restraint,
It is inner that rotor 15 is arranged on pump case 1, be bearing on pintle 11 by the first rolling bearing 17 and the second rolling bearing 14, the inner ring of the first rolling bearing 17 and the second rolling bearing 14 is against on the shoulder of pintle 11 respectively, their outer ring respectively by being arranged on the first rotor gland 26 on rotor 15 and the second rotor gland 12 compresses, and realizes sealing by seal ring 19; The both sides of rotor 15 are processed with plural radial groove all respectively, are provided with permanent magnet 16 in each groove, form the rotor of motor respectively; The external cylindrical surface of rotor 15 radially has plural plunger hole 8, a plunger 7 is installed in each plunger hole 8, plunger 7 is provided with connecting rod piston shoes 6, plunger 7 is connected by ball pivot with connecting rod piston shoes 6, can relatively rotate in several angle, be cambered surface bottom connecting rod piston shoes 6, its radius of curvature is identical with the radius of curvature of cam 2 inner circular aperture, the inside of cam 2 is pressed in bottom connecting rod piston shoes 6, can relative sliding;
The first pump end cap 27 in pump and on staor winding 5 form permanent magnet disc motor 29 with the permanent magnet 16 of rotor 15 and upper side thereof; Second pump end cap 4 and on staor winding 5 form another permanent magnet disc motor 29 with the permanent magnet 16 of rotor 15 and upper opposite side thereof.
Mutually isolated force feed arc groove 32 and oil suction arc groove 31 is had in the middle part of described pintle 11, they are communicated with each plunger hole 8 in respective orientation respectively, and the direction of its division surface is identical with the eccentric direction of cam 2, one end that pintle 11 inserts flow axle sleeve 25 also has out oil ring groove 22 and oil-feed annular groove 23, by axial bore and the radial hole of pintle 11, make force feed arc groove 32 and go out oil ring groove 22 and be communicated with, oil suction arc groove 31 is communicated with oil-feed annular groove 23, flow axle sleeve 25 has oil inlet hole 20 and oil outlet 21, oil inlet hole 20 is communicated with oil-feed annular groove 23, oil outlet 21 with go out oil ring groove 22 and be communicated with.
Described oil suction arc groove 31, force feed arc groove 32, oil-feed annular groove 23 and go out oil ring groove 22, its both sides are all provided with seal ring 19, realize sealing; Between first axle head gland 24 and pintle 11, seal ring 19 is installed, realizes the sealing to the axial bore on pintle 11.
The present invention has the following advantages:
1) compact structure, transmission is simple.This pump adopts motor and pump integrated design, and transmission link is few, saves space.
2) stress balance, stable working.This pump adopts shaft type structure, and pintle maintains static, and supporting is reliable, not easily produces deformation, makes rotor turns more steady.
3) output power is high, easily controls.This pump adopts permanent magnet disc motor to drive, permanent magnet disc motor has the feature of low speed, high pulling torque, can direct-driven pump rotor motion, makes the pressure that output fluid reaches very high, by the rotating speed of driver control permanent magnet disc motor, the adjustment of the output flow of pump can be realized.
Accompanying drawing explanation
Fig. 1 is axial sectional view of the present invention.
Fig. 2 is the sectional view in the A-A cross section of Fig. 1.
Fig. 3 is the sectional view in the B-B cross section of Fig. 1.
Fig. 4 is the sectional view in the C-C cross section of Fig. 1.
Fig. 5 is the sectional view in the D-D cross section of Fig. 1.
Fig. 6 is the sectional view in the E-E cross section of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
With reference to Fig. 1, Fig. 2 and Fig. 3, the radial plunger pump of the integral type that a kind of permanent magnet disc motor drives, comprise pump case 1, cam 2 is arranged in pump case 1, circumference is realized fixing by the first key 30, cam 2 is ring parts, between the circular hole of its inside and external cylindrical surface, there is certain offset, the size of offset determines pump delivery, cam 2 both sides are compressed by the first abutment sleeve 28 and the second abutment sleeve 3 respectively, realize axial restraint, first pump end cap 27 and the second pump end cap 4 are arranged on the two ends of pump case 1 respectively, their seam compresses the first abutment sleeve 28 and the second abutment sleeve 3 respectively, first pump end cap 27 and the second pump end cap 4 are all provided with columniform boss on the side of pump case 1 inside, and be processed with plural radial groove, staor winding 5 is wound with in each groove, form the stator of motor respectively, the coil of staor winding 5 is connected with external circuit with the second winding wire-feeding hold 13 with the first winding wire-feeding hold 18 on the second pump end cap 4 respectively by the first pump end cap 27, flow axle sleeve 25 is fixedly mounted on the first pump end cap 27, pintle 11 is fixed in the pump housing, two ends are bearing on flow axle sleeve 25 and the second pump end cap 4 respectively, circumference is realized fixing by the second key 10, first axle head gland 24 and the second axle head gland 9 are arranged on flow axle sleeve 25 and the second pump end cap 4 respectively, pintle 11 two ends are compressed, realizes axial restraint.
With reference to Fig. 1, Fig. 2 and Fig. 4, it is inner that rotor 15 is arranged on pump case 1, be bearing on pintle 11 by the first rolling bearing 17 and the second rolling bearing 14, the inner ring of the first rolling bearing 17 and the second rolling bearing 14 is against on the shoulder of pintle 11 respectively, their outer ring by being arranged on the first rotor gland 26 on rotor 15 and the second rotor gland 12 compresses, realizes sealing by seal ring 19 respectively; The both sides of rotor 15 are processed with plural radial groove all respectively, are provided with permanent magnet 16 in each groove, form the rotor of motor respectively; The external cylindrical surface of rotor 15 radially has plural plunger hole 8, a plunger 7 is installed in each plunger hole 8, plunger 7 is provided with connecting rod piston shoes 6, connected by ball pivot between plunger 7 and connecting rod piston shoes 6, can relatively rotate in several angle, be cambered surface bottom connecting rod piston shoes 6, its radius of curvature is identical with the radius of curvature of cam 2 inner circular aperture, the inside of cam 2 is pressed in bottom connecting rod piston shoes 6, can relative sliding.
With reference to Fig. 1, the first pump end cap 27 in pump and on staor winding 5 form permanent magnet disc motor 29 with the permanent magnet 16 of rotor 15 and upper side thereof; Second pump end cap 4 and on staor winding 5 form another permanent magnet disc motor 29 with the permanent magnet 16 of rotor 15 and upper opposite side thereof.
With reference to Fig. 1, Fig. 2, Fig. 5 and Fig. 6, mutually isolated force feed arc groove 32 and oil suction arc groove 31 is had in the middle part of described pintle 11, they are communicated with each plunger hole 8 in respective orientation respectively, and the direction of its division surface is identical with the eccentric direction of cam 2, one end that pintle 11 inserts flow axle sleeve 25 also has out oil ring groove 22 and oil-feed annular groove 23, by axial bore and the radial hole of pintle 11, make force feed arc groove 32 and go out oil ring groove 22 and be communicated with, oil suction arc groove 31 is communicated with oil-feed annular groove 23, flow axle sleeve 25 has oil inlet hole 20 and oil outlet 21, oil inlet hole 20 is communicated with oil-feed annular groove 23, oil outlet 21 with go out oil ring groove 22 and be communicated with.
With reference to Fig. 1, described oil suction arc groove 31, force feed arc groove 32, oil-feed annular groove 23 and go out oil ring groove 22, its both sides are all provided with seal ring 19, realize sealing; Between first axle head gland 24 and pintle 11, seal ring 19 is installed, realizes the sealing to the axial bore on pintle 11.
Working principle of the present invention is: with reference to Fig. 1, on staor winding 5 after indirect current, the magnetic field changed, drive rotor 15 to rotate, the plunger 7 in the plunger hole 8 on rotor 15 and connecting rod piston shoes 6 are under the effect of centrifugal force, hydraulic coupling, compress the inwall of cam 2, owing to having certain offset between the circular hole of cam 2 inside and rotor 15 center of rotation, therefore, while plunger 7 rotates with rotor 15, along the radial to-and-fro motion of rotor 15, thus the enclosed volume of plunger hole 8 is periodically changed.Oil suction arc groove 31 on pintle 11 and the orientation of force feed arc groove 32 corresponding with the eccentric direction of cam 2, make when plunger hole 8 volume increases, plunger hole 8 is communicated with oil suction arc groove 31, when plunger hole 8 volume reduces, plunger hole 8 is communicated with force feed arc groove 32, oil suction arc groove 31 and force feed arc groove 32 respectively by the axial bore on pintle 11 and radial hole and oil-feed annular groove 23 with go out oil ring groove 22 and be communicated with, and then be communicated with oil outlet 21 with the oil inlet hole 20 on flow axle sleeve 25, therefore when plunger hole 8 volume increases, fluid can be sucked from oil inlet hole 20, when plunger hole 8 volume reduces, fluid can extrude from oil outlet 21, all plungers 7 on rotor 15 work simultaneously, just complete continuously from oil inlet hole 20 oil suction, extrude from oil outlet 21.
Claims (3)
1. the radial plunger pump of the integral type of a permanent magnet disc motor driving, comprise pump case (1), it is characterized in that: cam (2) is arranged in pump case (1), circumference is realized fixing by the first key (30), cam (2) is a ring part, between the circular hole of its inside and external cylindrical surface, there is offset, cam (2) both sides are compressed by the first abutment sleeve (28) and the second abutment sleeve (3) respectively, realize axial restraint, first pump end cap (27) and the second pump end cap (4) are arranged on the two ends of pump case (1) respectively, their seam compresses the first abutment sleeve (28) and the second abutment sleeve (3) respectively, first pump end cap (27) and the second pump end cap (4) are all provided with columniform boss on the side of pump case (1) inside, and be processed with plural radial groove, staor winding (5) is wound with in each groove, form the stator of motor respectively, the coil of staor winding (5) is connected with external circuit with the second winding wire-feeding hold (13) with the first winding wire-feeding hold (18) on the second pump end cap (4) respectively by the first pump end cap (27), flow axle sleeve (25) is fixedly mounted on the first pump end cap (27), pintle (11) is fixed in the pump housing, two ends are bearing on flow axle sleeve (25) and the second pump end cap (4) respectively, and it is fixing to realize circumference by the second key (10), first axle head gland (24) and the second axle head gland (9) are arranged on flow axle sleeve (25) and the second pump end cap (4) respectively, pintle (11) two ends are compressed, realizes axial restraint,
It is inner that rotor (15) is arranged on pump case (1), be bearing on pintle (11) by the first rolling bearing (17) and the second rolling bearing (14), the inner ring of the first rolling bearing (17) and the second rolling bearing (14) is against on the shoulder of pintle (11) respectively, their outer ring respectively by being arranged on the first rotor gland (26) on rotor (15) and the second rotor gland (12) compresses, and realizes sealing by seal ring (19); The both sides of rotor (15) are processed with plural radial groove all respectively, be provided with permanent magnet (16), form the rotor of motor respectively in each groove; The external cylindrical surface of rotor (15) radially has plural plunger hole (8), a plunger (7) is installed in each plunger hole (8), plunger (7) is provided with connecting rod piston shoes (6), plunger (7) is connected by ball pivot with connecting rod piston shoes (6), can relatively rotate in several angle, connecting rod piston shoes (6) bottom is cambered surface, its radius of curvature is identical with the radius of curvature of cam (2) inner circular aperture, connecting rod piston shoes (6) bottom is pressed in the inside of cam (2), can relative sliding;
The first pump end cap (27) in pump and on staor winding (5) and rotor (15) and the permanent magnet (16) of upper side form permanent magnet disc motor (29); Second pump end cap (4) and on staor winding (5) and rotor (15) and the permanent magnet (16) of upper opposite side form another permanent magnet disc motor (29).
2. the radial plunger pump of the integral type of a kind of permanent magnet disc motor driving according to claim 1, it is characterized in that: described pintle (11) middle part has mutually isolated force feed arc groove (32) and oil suction arc groove (31), they are communicated with each plunger hole (8) in respective orientation respectively, and the direction of its division surface is identical with the eccentric direction of cam (2), one end of pintle (11) insertion flow axle sleeve (25) also has out oil ring groove (22) and oil-feed annular groove (23), by axial bore and the radial hole of pintle (11), make force feed arc groove (32) and go out oil ring groove (22) and be communicated with, oil suction arc groove (31) is communicated with oil-feed annular groove (23), flow axle sleeve (25) has oil inlet hole (20) and oil outlet (21), oil inlet hole (20) is communicated with oil-feed annular groove (23), oil outlet (21) with go out oil ring groove (22) and be communicated with.
3. the radial plunger pump of the integral type of a kind of permanent magnet disc motor driving according to claim 1, it is characterized in that: described oil suction arc groove (31), force feed arc groove (32), oil-feed annular groove (23) and go out oil ring groove (22), its both sides are all provided with seal ring (19), realize sealing; Between first axle head gland (24) and pintle (11), seal ring (19) is installed, realizes the sealing to the axial bore on pintle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445525.6A CN104329232B (en) | 2014-09-03 | 2014-09-03 | The radial plunger pump of the integral type that a kind of permanent magnet disc motor drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445525.6A CN104329232B (en) | 2014-09-03 | 2014-09-03 | The radial plunger pump of the integral type that a kind of permanent magnet disc motor drives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329232A true CN104329232A (en) | 2015-02-04 |
| CN104329232B CN104329232B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410445525.6A Expired - Fee Related CN104329232B (en) | 2014-09-03 | 2014-09-03 | The radial plunger pump of the integral type that a kind of permanent magnet disc motor drives |
Country Status (1)
| Country | Link |
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| CN (1) | CN104329232B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114277A (en) * | 2015-09-11 | 2015-12-02 | 余文凌 | Radial plunger type valve-free and pulse-free metering pump |
| CN108506183A (en) * | 2018-03-21 | 2018-09-07 | 武汉洛特福动力技术有限公司 | Big flow multi-plunger permanent magnetism metering pump |
| CN106438254B (en) * | 2016-09-14 | 2018-11-06 | 李海荣 | A kind of low speed axial plunger hydraulic pump |
| CN109653973A (en) * | 2018-11-17 | 2019-04-19 | 华中科技大学 | A kind of radial plunger pump of the compound flow of water lubrication shaft valve |
| CN110005586A (en) * | 2019-05-14 | 2019-07-12 | 辽宁工程技术大学 | A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives |
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| EP1157210B1 (en) * | 1999-03-11 | 2004-09-29 | Mapple Technology Ltd. | Rotary power unit |
| CN1757916A (en) * | 2004-10-07 | 2006-04-12 | Lg电子株式会社 | Linear compressor |
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2014
- 2014-09-03 CN CN201410445525.6A patent/CN104329232B/en not_active Expired - Fee Related
Patent Citations (7)
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| US6139289A (en) * | 1995-12-08 | 2000-10-31 | Aisan Kogyookabushiki Kaisha | Magnetically coupled pump |
| JP2000234590A (en) * | 1999-02-12 | 2000-08-29 | Robert Bosch Gmbh | Piston pump |
| EP1157210B1 (en) * | 1999-03-11 | 2004-09-29 | Mapple Technology Ltd. | Rotary power unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114277A (en) * | 2015-09-11 | 2015-12-02 | 余文凌 | Radial plunger type valve-free and pulse-free metering pump |
| CN106438254B (en) * | 2016-09-14 | 2018-11-06 | 李海荣 | A kind of low speed axial plunger hydraulic pump |
| CN108506183A (en) * | 2018-03-21 | 2018-09-07 | 武汉洛特福动力技术有限公司 | Big flow multi-plunger permanent magnetism metering pump |
| CN108506183B (en) * | 2018-03-21 | 2019-05-21 | 武汉洛特福动力技术有限公司 | Big flow multi-plunger permanent magnetism metering pump |
| CN109653973A (en) * | 2018-11-17 | 2019-04-19 | 华中科技大学 | A kind of radial plunger pump of the compound flow of water lubrication shaft valve |
| CN110005586A (en) * | 2019-05-14 | 2019-07-12 | 辽宁工程技术大学 | A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives |
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| CN104329232B (en) | 2016-02-24 |
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