CN112855517A - Permanent magnet bearing supporting type plunger pump - Google Patents
Permanent magnet bearing supporting type plunger pump Download PDFInfo
- Publication number
- CN112855517A CN112855517A CN202110190623.XA CN202110190623A CN112855517A CN 112855517 A CN112855517 A CN 112855517A CN 202110190623 A CN202110190623 A CN 202110190623A CN 112855517 A CN112855517 A CN 112855517A
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- CN
- China
- Prior art keywords
- plunger pump
- permanent magnet
- main shaft
- bearing
- magnet bearing
- 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.)
- Pending
Links
- 238000009826 distribution Methods 0.000 claims abstract description 7
- 230000005389 magnetism Effects 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to a permanent magnet bearing supported plunger pump, which comprises a rotor shell and a plunger pump shell, wherein a main cylinder body is arranged in the rotor shell, the main cylinder body is connected with the rotor shell through a central pin shaft, an oil distribution disc is arranged at the joint of the main cylinder body and the rotor shell, the ball end of a central ejector rod is connected with a main shaft, a plurality of ball sockets are arranged on the end surface of the main shaft at the side, a connecting rod plunger is arranged between the ball sockets and a plunger hole, the main shaft is arranged in the plunger pump shell, a bevel gear is arranged on the main shaft, the bevel gear and a conical tooth are arranged in a matching manner, a permanent magnet bearing assembly is arranged at the large end of the main shaft below the bevel gear, and a mechanical bearing is arranged at. The spindle of the invention rotates at ultra high speed, automatically balances load and has low energy consumption.
Description
Technical Field
The invention relates to a plunger pump, in particular to a permanent magnet bearing supporting type plunger pump.
Background
The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like. The device is widely applied to occasions with high pressure, large flow and flow needing to be adjusted, such as hydraulic machines, engineering machinery and ships.
Wherein the support mode directly influences the efficiency, stability, life-span of pump. Generally, the plunger pump main shaft is supported by mechanical bearings and two or more mechanical bearing assemblies, so that the main shaft is rotatably fixed in the pump body. When the oil distribution disc works, the main shaft rotates by inputting energy from outside, so that the plunger reciprocates in the oil cavity of the cylinder body, and oil absorption and oil pressing are realized under the action of the oil distribution disc.
With the development of hydraulic technology and engineering machinery, higher requirements are provided for the rotating speed, stability and efficiency of a main shaft of a plunger pump, but when a common plunger pump operates, the plunger pump is used as a mechanical bearing for supporting the main shaft, friction can be generated inevitably, the problems of uneven loading and difficulty in automatic adjustment can be easily caused under high-speed operation, and therefore ultrahigh-speed operation of the main shaft can not be realized, and the requirements of stability and the like of the pump under high rotating speed can not be met.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects in the prior art and provides a permanent magnet bearing support type plunger pump with a main shaft rotating at a super high speed, automatic load balancing and low energy consumption.
The technical scheme is as follows: in order to solve the technical problems, the invention provides a permanent magnet bearing supported plunger pump, which comprises a rotor shell and a plunger pump shell, wherein a connecting sleeve is arranged on the inner side wall of the joint of the rotor shell and the plunger pump shell, a main cylinder body is arranged in the rotor shell, tapered teeth are integrally arranged at one end, close to a main shaft, of the main cylinder body, the main cylinder body is connected with the rotor shell through a central pin shaft, one end of the central pin shaft is fixedly connected with the rotor shell, the other end of the central pin shaft is connected with the rotor shell through a needle bearing, the needle bearing is arranged in a central hole of the main cylinder body, an oil distribution disc is arranged at the joint of the main cylinder body and the rotor shell, the needle bearing is sleeved on the central pin shaft, a plurality of plunger holes are arranged on the main cylinder body outside the central hole, one end of the central hole is, the improved plunger pump is characterized in that one end of the central ejector rod is arranged on the spring seat in a penetrating mode, a spring is sleeved outside the central ejector rod, the ball end of the central ejector rod is connected with a main shaft, a plurality of ball sockets are arranged on the end face of the main shaft on the side, the ball sockets and the plunger holes are arranged in a one-to-one correspondence mode, a connecting rod plunger is arranged between the corresponding ball sockets and the corresponding plunger holes, the main shaft is arranged in the plunger pump shell, a bevel gear is arranged on the main shaft, the bevel gear is matched with conical teeth, a permanent magnet bearing assembly is arranged on the large end of the main shaft below the bevel gear, a mechanical bearing is arranged on the small end of the main shaft below the permanent magnet bearing assembly.
Further, the permanent magnet bearing assembly comprises a permanent magnet bearing, a sleeve and an inner end cover, the permanent magnet bearing is arranged in an offset mode, an inner ring of the permanent magnet bearing is axially positioned by a shaft shoulder of a main shaft and is simultaneously compressed by the sleeve, an outer ring of the permanent magnet bearing is positioned by a permanent magnet bearing hole on a plunger pump shell and is simultaneously compressed by the inner end cover, the permanent magnet bearing comprises a rotor and a stator, the rotor comprises a movable magnetic ring, a movable retainer and a rotor magnetism isolating ring, the movable retainer is a hollow shaft and is sleeved on the main shaft, an outer flange is arranged on the outer wall of one end of the movable retainer along the radial direction, the outer side of the outer flange is in contact positioning with the shaft shoulder on the main shaft, the movable magnetic ring and the rotor magnetism isolating ring are both sleeved on the movable retainer, the movable magnetic ring is arranged between the rotor magnetism isolating ring and the outer flange of, the stator magnetism isolating ring is sleeved on an outer flange of the movable retainer and is in contact with the outer flange, the fixed retainer is a hollow shaft and is sleeved on the fixed magnetism isolating ring, a circle of inner flange is arranged on the inner wall of one end of the fixed retainer along the radial direction, the inner flange of the fixed retainer is opposite to the rotor magnetism isolating ring, the fixed magnetism isolating ring is arranged between the inner flange of the fixed retainer and the stator magnetism isolating ring, the fixed retainer is compressed by an inner end cover, and the inner flange of the fixed retainer is positioned between a concave flange of a plunger pump shell and the fixed magnetism isolating ring.
Further, the inner ring of the mechanical bearing is axially positioned by the sleeve and is fixed by the spring retainer ring, and the outer ring of the mechanical bearing is positioned by a mechanical bearing hole on the shell of the plunger pump and is compressed by the outer end cover.
Furthermore, the inner end cover is a transparent cover and is installed inside the plunger pump shell, and the outer protruding edge I of the inner end cover is fixedly connected with the concave edge of the inner wall of the plunger pump shell through screws.
Further, the outer end cover is a transparent cover, and an outer flange II of the outer end cover is fixedly connected with the end face of the bottom of the plunger pump shell through a screw.
Further, the mechanical bearing is a deep groove ball bearing.
Further, the sleeve is fixed on the main shaft.
Furthermore, the permanent magnet bearing is arranged in a mode that the inner magnetic ring and the outer magnetic ring are arranged in an offset mode, the inner magnetic ring and the outer magnetic ring have axial offset displacement, and the offset displacement is set according to the axial load when the pump operates, so that the bearing provides radial suspension support and can bear the main axial load during operation.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the plunger pump has reasonable integral structure, the main shaft of the plunger pump is supported by the permanent magnet bearing, the permanent magnet bearing stably suspends the main shaft by utilizing the magnetic field force of the permanent magnet, the plunger pump has the characteristics of automatic balance function and uniform distribution of bearing capacity, the stability of the operation of the plunger pump can be improved, the temperature rise is reduced by reducing the contact friction of the rotating shaft, the rotating speed of the rotating shaft is improved, the power density of the pump can be greatly improved, the mechanical service life can be prolonged, the efficiency of the pump is improved, the permanent magnet bearing does not need lubrication and a sealing device, the design structure is simplified, the reliability of the plunger pump is improved, the permanent magnet bearing is in offset arrangement of the inner magnetic ring and the outer magnetic ring, the bearing provides radial suspension support and can bear the main axial load during working, the bearing of the mechanical bearing in the working process is greatly reduced, and.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a schematic view of a longitudinal connection structure of the permanent magnet bearing according to the present invention;
fig. 4 is a schematic view of a transverse connection structure of the permanent magnet bearing of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the permanent magnet bearing supported plunger pump of the present invention comprises a rotor housing 1 and a plunger pump housing 2, wherein a connecting sleeve 3 is arranged on the inner side wall of the joint of the rotor housing 1 and the plunger pump housing 2, a main cylinder 4 is arranged in the rotor housing 1, tapered teeth 6 are integrally arranged at one end of the main cylinder 4 close to a main shaft 5, the main cylinder 4 is connected with the rotor housing 1 through a central pin 7, one end of the central pin 7 is fixedly connected with the rotor housing 1, the other end of the central pin 7 is connected with the rotor housing 1 through a needle bearing 8, the needle bearing 8 is arranged in a central hole of the main cylinder 1, an oil distribution disc 7 is arranged at the joint of the main cylinder 4 and the rotor housing 1, the needle bearing 8 is sleeved on the central pin 7, a plurality of plunger holes 9 are arranged on the main cylinder 4 outside the central hole, the spring seat 10 is connected with a central ejector rod 11, one end of the central ejector rod 11 is arranged on the spring seat 10 in a penetrating way, a spring 12 is sleeved outside the central ejector rod 11, the ball head end of the central ejector rod 11 is connected with a main shaft 5, a plurality of ball sockets 12 are arranged on the end surface of the main shaft 5 on the side, the ball sockets 12 and plunger holes 9 are arranged in a one-to-one correspondence way, a connecting rod plunger 13 is arranged between the corresponding ball sockets 12 and the plunger holes 9, the main shaft 5 is arranged in a plunger pump shell body 2, a bevel gear 14 is arranged on the main shaft 5, the bevel gear 14 and a conical tooth 6 are arranged in a matching way, a permanent magnet bearing assembly is arranged on the large end 15 of the main shaft 5 below the bevel gear 14, a mechanical bearing 17 is arranged on the small end 16 of the main shaft 12 below the permanent magnet bearing assembly, the mechanical bearing 17 is a deep, the permanent magnet bearing utilizes the magnetic field force of the permanent magnet to suspend the main shaft stably, has the function of automatic balance, has the characteristic of uniform distribution of bearing capacity, can improve the stability of the operation of the plunger pump, reduces temperature rise through reducing the contact friction of a rotating shaft, improves the rotating speed of the rotating shaft, can greatly improve the power density of the pump, can prolong the mechanical life, improve the efficiency of the pump, does not need lubrication, does not need a sealing device, simplifies the design structure and improves the reliability of the plunger pump.
The permanent magnet bearing assembly comprises a permanent magnet bearing 20, a sleeve 21 and an inner end cover 22, the permanent magnet bearing 20 is arranged in an offset mode, the inner ring of the permanent magnet bearing 20 is axially positioned by a shaft shoulder 23 of a main shaft 5 and is compressed by the sleeve 19, the outer ring of the permanent magnet bearing is positioned by a permanent magnet bearing hole 24 on a plunger pump shell 2 and is compressed by the inner end cover 20, the permanent magnet bearing 20 comprises a rotor and a stator, the rotor comprises a movable magnetic ring 25, a movable retainer 26 and a rotor magnetism isolating ring 27, the movable retainer 26 is a hollow shaft and is sleeved on the main shaft 5, the outer wall of one end of the movable retainer 26 is provided with a circle of outer flange 28 along the radial direction, the outer side of the outer flange 28 is in contact positioning with the shaft shoulder on the main shaft 5, the movable magnetic ring 25 and the rotor magnetism isolating ring 27 are both sleeved on the movable retainer 26, the movable magnetic ring 25, a fixed magnetic ring 29 is sleeved on the movable magnetic ring 25, a stator magnetism isolating ring 31 is sleeved on an outer flange 28 of a movable retainer 26, a stator magnetism isolating ring 31 is contacted with the outer flange 28, a fixed retainer 30 is a hollow shaft, the fixed retainer 30 is sleeved on the fixed magnetic ring 29, the inner wall of one end of the fixed retainer 30 is provided with a circle of inner flange 32 along the radial direction, the inner flange 32 of the fixed retainer 30 is opposite to a rotor magnetism isolating ring 27, the fixed magnetic ring 29 is arranged between the inner flange 32 of the fixed retainer 30 and the stator magnetism isolating ring 31, the fixed retainer 30 is pressed by an inner end cover 22, the inner flange 32 of the fixed retainer 30 is positioned between a concave flange 33 of a plunger pump shell 2 and the fixed magnetic ring 29, a, the bearing can bear main axial load during working besides providing radial suspension support, so that the bearing of the mechanical bearing in the working process is greatly reduced, and the mechanical life is prolonged.
The inner ring of the mechanical bearing 17 is axially positioned by the sleeve 21 and is fixed by the spring collar 18, the outer ring is positioned by the mechanical bearing hole 34 on the plunger pump shell 2 and is pressed by the outer end cover 19, the connection is firm, and the sleeve 21 is fixed on the main shaft 5.
The inner end cover 22 is a transparent cover and is installed inside the plunger pump shell 2, and an outer protruding edge I35 of the inner end cover 22 and an inner wall concave edge 36 of the plunger pump shell 2 are fixedly connected through screws and are connected in place, so that observation is facilitated.
The outer end cover 19 is a transparent cover, and the outer flange II 37 of the outer end cover 19 is fixedly connected with the bottom end face of the plunger pump shell 2 through screws, so that the connection is in place, and the observation is convenient.
When the oil suction and oil discharge device works, one end of the main shaft and the main cylinder body are in bevel gear transmission, the other end of the main shaft is connected with external power, when the external power is input, the main shaft rotates to further drive the main cylinder body to rotate, a connecting rod plunger connected to the end face of the large end of the main shaft makes reciprocating linear motion in a cylindrical oil cavity in the main cylinder body, and in one period, under the action of an oil distribution disc, an oil suction and oil discharge process is completed.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (7)
1. A permanent magnet bearing supporting type plunger pump is characterized in that: the plunger pump comprises a rotor shell (1) and a plunger pump shell (2), wherein a connecting sleeve (3) is arranged on the inner side wall of the joint of the rotor shell (1) and the plunger pump shell (2), a main cylinder body (4) is arranged in the rotor shell (1), one end, close to a main shaft (5), of the main cylinder body (4) is integrally provided with tapered teeth (6), the main cylinder body (4) is connected with the rotor shell (1) through a center pin shaft (7), one end of the center pin shaft (7) is fixedly connected with the rotor shell (1), the other end of the center pin shaft (7) is connected with the rotor shell (1) through a needle bearing (8), the needle bearing (8) is arranged in a center hole of the main cylinder body (1), an oil distribution disc (38) is arranged at the joint of the main cylinder body (4) and the rotor shell (1), and the needle bearing (8) is sleeved on the center pin shaft (7, the main cylinder body (4) outside the central hole is provided with a plurality of plunger holes (9), one end of the central hole is provided with a spring seat (10), the spring seat (10) is connected with a central ejector rod (11), one end of the central ejector rod (11) is arranged on the spring seat (10) in a penetrating manner, a spring (12) is sleeved outside the central ejector rod (11), the ball head end of the central ejector rod (11) is connected with the main shaft (5), the end surface of the main shaft (5) at the side is provided with a plurality of ball sockets (12), the ball sockets (12) and the plunger holes (9) are arranged in a one-to-one correspondence manner, a connecting rod plunger (13) is arranged between the corresponding ball sockets (12) and the plunger holes (9), the main shaft (5) is arranged in a plunger pump shell (2), the main shaft (5) is provided with a bevel gear (14), the bevel gear (14) and a conical tooth (6) are arranged in a matching manner, and a permanent magnet bearing assembly, the plunger pump is characterized in that a mechanical bearing (17) is arranged on a small end (16) of a main shaft (12) below the permanent magnet bearing assembly, a spring collar (18) is arranged at one end of the mechanical bearing (17), and an outer end cover (19) is arranged on the end face of the bottom of the plunger pump shell (2).
2. The permanent magnet bearing supported plunger pump of claim 1, wherein: the permanent magnet bearing assembly comprises a permanent magnet bearing (20), a sleeve (21) and an inner end cover (22), the permanent magnet bearing (20) is arranged in a bias mode, the inner ring of the permanent magnet bearing is axially positioned by a shaft shoulder (23) of a main shaft (5) and is simultaneously pressed by the sleeve (19), the outer ring of the permanent magnet bearing is positioned by a permanent magnet bearing hole (24) in a plunger pump shell (2) and is simultaneously pressed by the inner end cover (20), the permanent magnet bearing (20) comprises a rotor and a stator, the rotor comprises a movable magnetic ring (25), a movable retainer (26) and a rotor magnetism isolating ring (27), the movable retainer (26) is a hollow shaft and is sleeved on the main shaft (5), the outer wall of one end of the movable retainer (26) is provided with a circle of outer flange (28) along the radial direction, the outer side of the outer flange (28) is in contact positioning with the shaft shoulder of the main shaft (5), the movable magnetic ring (25), the stator comprises a fixed magnetic ring (29), a fixed retainer (30) and a stator magnetic isolating ring (31), the fixed magnetic ring (29) is sleeved on the movable magnetic ring (25), the stator magnetic isolating ring (31) is sleeved on the outer flange (28) of the movable retainer (26) and the stator magnetic isolating ring (31) is in contact with the outer flange (28), the fixed retainer (30) is a hollow shaft and the fixed retainer (30) is sleeved on the fixed magnetic ring (29), a circle of inner flange (32) is arranged on the inner wall of one end of the fixed retainer (30) along the radial direction, the inner flange (32) of the fixed retainer (30) is opposite to the rotor magnetic isolating ring (27), the fixed magnetic ring (29) is arranged between the inner flange (32) of the fixed retainer (30) and the stator magnetic isolating ring (31), the fixed retainer (30) is pressed by the inner end cover (22), and an inner flange (32) of the fixed retainer (30) is positioned between a concave edge (33) and a fixed magnetic ring (29) of the plunger pump shell (2).
3. The permanent magnet bearing supported plunger pump of claim 2, wherein: the inner ring of the mechanical bearing (17) is axially positioned by a sleeve (21) and is fixed by a spring collar (18), and the outer ring of the mechanical bearing is positioned by a mechanical bearing hole (34) on the plunger pump shell (2) and is compressed by an outer end cover (19).
4. The permanent magnet bearing supported plunger pump of claim 2, wherein: the inner end cover (22) is a transparent cover and is arranged inside the plunger pump shell (2), and an outer protruding edge I (35) of the inner end cover (22) is fixedly connected with an inner wall concave edge (36) of the plunger pump shell (2) through screws.
5. The permanent magnet bearing supported plunger pump of claim 2, wherein: the outer end cover (19) is a transparent cover, and an outer flange II (37) of the outer end cover (19) is fixedly connected with the bottom end face of the plunger pump shell (2) through screws.
6. The permanent magnet bearing supported plunger pump of claim 2, wherein: the mechanical bearing (17) is a deep groove ball bearing.
7. The permanent magnet bearing supported plunger pump of claim 2, wherein: the sleeve (21) is fixed on the main shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190623.XA CN112855517A (en) | 2021-02-20 | 2021-02-20 | Permanent magnet bearing supporting type plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190623.XA CN112855517A (en) | 2021-02-20 | 2021-02-20 | Permanent magnet bearing supporting type plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112855517A true CN112855517A (en) | 2021-05-28 |
Family
ID=75988203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110190623.XA Pending CN112855517A (en) | 2021-02-20 | 2021-02-20 | Permanent magnet bearing supporting type plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112855517A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472874A (en) * | 2003-07-15 | 2004-02-04 | 沈阳工业大学 | Passive magnetic suspension brushless D.C. motor |
| CN101787961A (en) * | 2010-03-04 | 2010-07-28 | 武汉理工大学 | Small magnetic suspension horizontal shaft wind power generator |
| CN202612391U (en) * | 2012-02-28 | 2012-12-19 | 上海大学 | Five-freedom-degree all-permanent-magnet suspension bearing rotor system |
| CN106121731A (en) * | 2016-06-24 | 2016-11-16 | 武汉科技大学 | A kind of dual-rotor structure and turbogenerator |
| CN107420424A (en) * | 2017-05-27 | 2017-12-01 | 深圳智慧能源技术有限公司 | Permanent magnetism type magnetic suspension bearing |
| CN108708904A (en) * | 2018-06-26 | 2018-10-26 | 坎德拉（深圳）科技创新有限公司 | Permanent-magnet bearing |
| CN111075678A (en) * | 2019-12-29 | 2020-04-28 | 江苏可奈力机械制造有限公司 | Oblique axis bevel gear pump |
| CN214464847U (en) * | 2021-02-20 | 2021-10-22 | 江苏可奈力机械制造有限公司 | Novel plunger pump structure |
-
2021
- 2021-02-20 CN CN202110190623.XA patent/CN112855517A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472874A (en) * | 2003-07-15 | 2004-02-04 | 沈阳工业大学 | Passive magnetic suspension brushless D.C. motor |
| CN101787961A (en) * | 2010-03-04 | 2010-07-28 | 武汉理工大学 | Small magnetic suspension horizontal shaft wind power generator |
| CN202612391U (en) * | 2012-02-28 | 2012-12-19 | 上海大学 | Five-freedom-degree all-permanent-magnet suspension bearing rotor system |
| CN106121731A (en) * | 2016-06-24 | 2016-11-16 | 武汉科技大学 | A kind of dual-rotor structure and turbogenerator |
| CN107420424A (en) * | 2017-05-27 | 2017-12-01 | 深圳智慧能源技术有限公司 | Permanent magnetism type magnetic suspension bearing |
| CN108708904A (en) * | 2018-06-26 | 2018-10-26 | 坎德拉（深圳）科技创新有限公司 | Permanent-magnet bearing |
| CN111075678A (en) * | 2019-12-29 | 2020-04-28 | 江苏可奈力机械制造有限公司 | Oblique axis bevel gear pump |
| CN214464847U (en) * | 2021-02-20 | 2021-10-22 | 江苏可奈力机械制造有限公司 | Novel plunger pump structure |
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Application publication date: 20210528 |