CN112727721A - Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof - Google Patents
Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof Download PDFInfo
- Publication number
- CN112727721A CN112727721A CN202110175465.0A CN202110175465A CN112727721A CN 112727721 A CN112727721 A CN 112727721A CN 202110175465 A CN202110175465 A CN 202110175465A CN 112727721 A CN112727721 A CN 112727721A
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- Prior art keywords
- plunger pump
- permanent magnet
- disc
- plunger
- central shaft
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005291 magnetic effect Effects 0.000 claims abstract description 35
- 239000004020 conductor Substances 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims abstract description 23
- 239000010949 copper Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000001808 coupling effect Effects 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 230000009351 contact transmission Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
- 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
- F04B1/20—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 having rotary cylinder block
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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
- 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
- F04B1/20—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 having rotary cylinder block
- F04B1/2014—Details or component parts
-
- 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
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
-
- 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
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
Abstract
The invention discloses a permanent magnetic disc type closed swash plate type axial plunger pump and a working method thereof, wherein the permanent magnetic disc type closed swash plate type axial plunger pump comprises a plunger pump body, a plunger pump front cover, a central shaft, a permanent magnetic disc, a plunger pump front end cover and a conductor copper disc, a plunger pump cylinder body is arranged in the plunger pump body, a plunger is arranged in the plunger pump cylinder body, a flow distribution disc is arranged between a flow distribution surface of the plunger pump front cover and a flow distribution surface of the plunger pump cylinder body, one end of the central shaft is connected with the plunger pump cylinder body, the other end of the central shaft is connected with the permanent magnetic disc, N, S permanent magnets with mutually spaced poles are arranged in the permanent magnetic disc, the conductor copper disc is fixed on a steel flange, and the. The central shaft is sealed in the pump body through the magnetic coupling drive of the conductor copper disc and the permanent magnetic disc, so that the flow leakage of the central shaft and the end cover is avoided, the problem of bearing abrasion caused by centering is solved, the output flow of the plunger pump can be adjusted by adjusting the size of the air gap, the integral structure is compact, and the plunger pump is efficient and energy-saving.
Description
Technical Field
The invention relates to the technical field of engineering machinery hydraulic systems, in particular to a permanent magnet disc type closed swash plate type axial plunger pump and a working method thereof.
Background
The axial plunger pump realizes oil absorption and oil discharge by means of the reciprocating motion of the plunger in the cylinder body hole and the change of the sealing volume, and is a positive displacement hydraulic pump. A swash plate type axial piston pump is an axial piston pump that operates by reciprocating a piston relative to a cylinder block by means of a swash plate and a spring, and is one of the most widely used hydraulic components in modern industries.
The central shaft of the traditional swash plate type axial plunger pump extends out of a pump end cover, the problem of leakage is difficult to thoroughly solve by a sealing structure at the central shaft and the end cover, and a sealing element needs to be frequently replaced; the central shaft is connected with the motor output shaft by adopting a coupler, the installation has high requirement on the centrality, the bearing abrasion problem is serious, and the service life of parts is short; the flow of the regulating pump needs to be specially provided with a variable mechanism, so that the whole structure of the pump is complex, the number of parts is large, and the energy-saving property is poor.
Disclosure of Invention
The invention aims to provide a permanent magnet disc type closed inclined disc type axial plunger pump and a working method thereof, and solves the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention discloses a permanent magnet disc type closed swash plate type axial plunger pump, which comprises a plunger pump body, a plunger pump front cover and a plunger pump rear end cover which are respectively arranged at the front end and the rear end of the plunger pump body, a central shaft, a permanent magnet disc baffle cover, a plunger pump front end cover and a conductor copper disc, wherein the central shaft is arranged on the central shaft;
the central shaft is arranged in the front cover of the plunger pump through a bearing I, one end of the central shaft is connected with the cylinder body of the plunger pump, the other end of the central shaft is connected with the permanent magnetic disc, and the permanent magnetic disc is axially fixed on the central shaft through the permanent magnetic disc blocking cover; the plunger pump cylinder body is arranged in the plunger pump body through a second bearing; the plunger pump front end cover is arranged on the plunger pump front cover so as to seal the central shaft in the plunger pump front cover; the conductor copper disc is fixed on a steel flange, and the steel flange is connected with an output shaft of the motor through an expansion sleeve;
the permanent magnet disc is provided with a permanent magnet mounting groove, N, S poles of permanent magnets are arranged in the permanent magnet mounting groove at intervals, a permanent magnet pressing plate is arranged at the end face of the permanent magnet disc, and the permanent magnets are fixed in the permanent magnet mounting groove in the permanent magnet disc by the permanent magnet pressing plate;
a flow distribution plate is arranged between the front cover of the plunger pump and the flow distribution surface of the cylinder body of the plunger pump;
the plunger pump is characterized in that a swash plate is arranged in a rear end cover of the plunger pump, a plunger hole and a return mechanism hole are formed in a cylinder body of the plunger pump, a plunger is arranged in the plunger hole and connected with a sliding shoe, a spring ball hinge return mechanism is arranged in the return mechanism hole, a ball hinge end of the spring ball hinge return mechanism is connected with a return plate, and the return plate tightly presses the sliding shoe on the swash plate.
Furthermore, the front end cover of the plunger pump is made of non-ferromagnetic substances with low magnetic permeability.
Further, the front end cover of the plunger pump is made of a nylon material.
Furthermore, a variable air gap exists between the front end cover of the plunger pump and the conductor copper disc.
A working method of a permanent magnet disc type closed swash plate type axial plunger pump comprises the following steps:
after the permanent magnetic disc type closed inclined disc type axial plunger pump is installed, a motor operates to drive a conductor copper disc to rotate, the conductor copper disc and a permanent magnet in the permanent magnetic disc generate torque under the magnetic coupling effect, so that a central shaft is driven to rotate, the central shaft rotates to drive a plunger pump cylinder body to rotate in a plunger pump body, a plunger does reciprocating linear motion in a plunger hole to enable the volume of the plunger hole to change constantly, and the oil absorption and oil discharge process is completed through a flow distribution disc and a front cover of the plunger pump.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the permanent magnet disc type closed swash plate type axial plunger pump changes the structure of the traditional swash plate type axial plunger pump, the non-contact transmission between a motor and the plunger pump can be realized by arranging the conductor copper disc and the permanent magnet disc, and the central shaft is sealed in the pump body, so that the flow leakage at the positions of the central shaft and the end cover is avoided;
2. the permanent magnetic disc type closed swash plate type axial plunger pump saves a coupler between a motor and the plunger pump, tolerates larger installation and centering errors, and greatly simplifies the installation and debugging process;
3. the permanent magnetic disc type closed inclined disc type axial plunger pump can change the rotating speed of the central shaft by adjusting the air gap, further adjust the flow of the plunger pump, and has a compact integral structure, high efficiency and energy conservation.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
Fig. 1 is a schematic view of the internal structure of a permanent magnet disc type closed swash plate type axial plunger pump of the present invention;
fig. 2 is a schematic perspective view of a permanent magnet disc type closed swash plate type axial plunger pump according to the present invention;
fig. 3 is a schematic structural diagram of a permanent magnet disc of the permanent magnet disc type closed swash plate type axial plunger pump of the invention.
Description of reference numerals: 1. a plunger pump rear end cover; 2. a plunger pump body; 3. a plunger pump cylinder; 4. a valve plate; 5. a plunger pump front cover; 6. a central shaft; 7. a permanent magnet pressing plate; 8. a permanent magnet disk; 9. a permanent magnet; 10. a permanent magnetic disk blocking cover; 11. a plunger pump front end cover; 12. a swash plate; 13. a return disk; 14. a slipper; 15. a second bearing; 16. a plunger; 17. a spring ball hinge return mechanism; 18. a first bearing; 19. a conductor steel disc; 20. a steel flange; 21. expanding the sleeve; 22. a motor; 23. an air gap; 24. and (4) screws.
Detailed Description
Example 1
As shown in fig. 1 to 3, a permanent magnet disc type closed swash plate type axial plunger pump according to embodiment 1 includes: the plunger pump comprises a plunger pump body 2, a plunger pump front cover 5 and a plunger pump rear end cover 1 which are arranged at the front end and the rear end of the plunger pump body 2, a central shaft 6, a permanent magnetic disc 8, a permanent magnetic disc baffle cover 10, a plunger pump front end cover 11 and a conductor copper disc 19.
The central shaft 6 is arranged in the front cover 5 of the plunger pump through a bearing I18, one end of the central shaft 6 is connected with the plunger pump cylinder 3 through a spline, the central shaft 6 rotates to drive the plunger pump cylinder 3 to rotate, the other end of the central shaft 6 is connected with a permanent magnetic disc 8 through a key, the permanent magnetic disc 8 is axially fixed on the central shaft 6 through a permanent magnetic disc blocking cover 10, and the permanent magnetic disc 8 rotates to drive the central shaft 6 to rotate; the plunger pump cylinder body 3 is arranged in the plunger pump body 2 through a second bearing 15; the plunger pump front end cover 11 is arranged on the plunger pump front cover 5, and the central shaft 6 is sealed in the plunger pump front cover 5; the conductor copper disc 19 is fixed on a steel flange 20, and the steel flange 20 is connected with an output shaft of a motor 22 through an expansion sleeve 21.
A permanent magnet mounting groove is formed in the permanent magnet disc 8, N, S poles of permanent magnets 9 which are mutually spaced are arranged in the permanent magnet mounting groove, a permanent magnet pressing plate 7 is arranged at the end face of the permanent magnet disc 8, and the permanent magnets 9 are fixed in the permanent magnet mounting groove in the permanent magnet disc 8 through screws 24 by the permanent magnet pressing plate 7; the number of permanent magnets 9 and the size of the permanent magnet disc 8 are determined according to the actual situation.
A valve plate 4 is arranged between the valve surface of the plunger pump front cover 5 and the plunger pump cylinder body 3, and two circular channels are arranged on the valve plate 4 and are respectively communicated with a suction oil path and a discharge oil path of the plunger pump.
A swash plate 12 is arranged in a rear end cover 1 of the plunger pump, a plunger hole and a return mechanism hole are arranged in a cylinder body 3 of the plunger pump, a plunger 16 is arranged in the plunger hole, the plunger 16 is connected with a sliding shoe 14, a spring ball hinge return mechanism 17 is arranged in the return mechanism hole, the ball hinge end of the spring ball hinge return mechanism 17 is connected with a return plate 13, and the return plate 13 tightly presses the sliding shoe 14 on the swash plate 12; the plunger pump cylinder body 3 rotates to drive the plunger 16 and the sliding shoe 14 to slide along the surface of the swash plate 12, and the plunger 16 makes reciprocating linear motion in a plunger hole to realize the suction and discharge of hydraulic oil.
In order to reduce the magnetic field interference between the copper conductor disc 19 and the permanent magnet disc 8, in this embodiment 1, preferably, the material of the plunger pump front end cover 11 is a non-ferromagnetic substance with a small magnetic permeability, which may be specifically a nylon material.
In order to realize the non-contact transmission between the motor and the pump and realize the flow regulation of the plunger pump, a variable air gap 23 is arranged between the front end cover 11 of the plunger pump and the conductor copper disc 19, and the rotating speed of the motor 22 is controlled by changing the size of the air gap 23, so that the flow regulation of the plunger pump is realized.
When the permanent magnetic disc type closed swash plate type axial plunger pump in the embodiment 1 is used, after the permanent magnetic disc type closed swash plate type axial plunger pump is installed, the motor 22 operates to drive the conductor copper disc 19 to rotate, the conductor copper disc 19 and the permanent magnet 9 in the permanent magnetic disc 8 generate torque under the magnetic coupling effect to drive the central shaft 6 to rotate, the central shaft 6 rotates to drive the plunger pump cylinder body 3 to rotate in the plunger pump body 2, the plunger 16 does reciprocating linear motion in the plunger hole to enable the volume of the plunger hole to change constantly, and the oil suction and oil discharge processes are completed through the flow distribution disc 4 and the plunger pump front cover 5.
Example 2
The working method of the permanent magnet disc type closed swash plate type axial plunger pump in embodiment 2 includes the following steps: after the permanent magnet disc type closed swash plate type axial plunger pump is installed, the motor 22 operates to drive the conductor copper disc 19 to rotate, the conductor copper disc 19 and the permanent magnet 9 in the permanent magnet disc 8 generate torque under the magnetic coupling effect, so that the central shaft 6 is driven to rotate, the central shaft 6 rotates to drive the plunger pump cylinder body 3 to rotate in the plunger pump body 2, the plunger 16 does reciprocating linear motion in the plunger hole to enable the volume of the plunger hole to change constantly, and the oil suction and oil discharge process is completed through the flow distribution disc 4 and the plunger pump front cover 5.
The permanent magnet disc type closed swash plate type axial plunger pump changes the structure of the traditional swash plate type axial plunger pump, the non-contact transmission between a motor and the plunger pump can be realized by arranging the conductor copper disc and the permanent magnet disc, and the central shaft is sealed in the pump body, so that the flow leakage at the positions of the central shaft and the end cover is avoided; in addition, a coupling between the motor and the plunger pump is omitted, a large installation centering error is tolerated, and the installation and debugging process is greatly simplified; the rotating speed of the central shaft can be changed by adjusting the air gap, so that the flow of the plunger pump can be adjusted, the whole structure is compact, and the efficiency and the energy are high.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. A permanent magnet disc type closed swash plate type axial plunger pump is characterized by comprising a plunger pump body (2), a plunger pump front cover (5) and a plunger pump rear end cover (1) which are respectively arranged at the front end and the rear end of the plunger pump body (2), a central shaft (6), a permanent magnet disc (8), a permanent magnet disc baffle cover (10), a plunger pump front end cover (11) and a conductor copper disc (19);
the central shaft (6) is installed in the front cover (5) of the plunger pump through a bearing I (18), one end of the central shaft (6) is connected with the cylinder body (3) of the plunger pump, the other end of the central shaft is connected with the permanent magnetic disc (8), and the permanent magnetic disc (8) is axially fixed on the central shaft (6) through the permanent magnetic disc blocking cover (10); the plunger pump cylinder body (3) is arranged in the plunger pump body (2) through a second bearing (15); the plunger pump front end cover (11) is arranged on the plunger pump front cover (5) to seal the central shaft (6) in the plunger pump front cover (5); the conductor copper disc (19) is fixed on a steel flange (20), and the steel flange (20) is connected with an output shaft of a motor (22) through an expansion sleeve (21);
a permanent magnet mounting groove is formed in the permanent magnet disc (8), N, S poles of permanent magnets (9) are arranged in the permanent magnet mounting groove at intervals, a permanent magnet pressing plate (7) is arranged on the end face of the permanent magnet disc (8), and the permanent magnets (9) are fixed in the permanent magnet mounting groove in the permanent magnet disc (8) by the permanent magnet pressing plate (7);
a flow distribution plate (4) is arranged between the flow distribution surface of the plunger pump front cover (5) and the plunger pump cylinder body (3);
the plunger pump is characterized in that a swash plate (12) is arranged in the rear end cover (1) of the plunger pump, a plunger hole and a return mechanism hole are formed in the cylinder body (3) of the plunger pump, a plunger (16) is arranged in the plunger hole, the plunger (16) is connected with a sliding shoe (14), a spring ball hinge return mechanism (17) is arranged in the return mechanism hole, the ball hinge end of the spring ball hinge return mechanism (17) is connected with a return plate (13), and the return plate (13) compresses the sliding shoe (14) on the swash plate (12).
2. A permanent magnet disc type closed swash plate type axial plunger pump according to claim 1, wherein the material of the plunger pump front end cover (11) is a non-ferromagnetic substance with low magnetic permeability.
3. A permanent magnet disc type closed swash plate type axial plunger pump according to claim 2, characterized in that the material of the front end cover (11) of the plunger pump is nylon material.
4. A permanent magnet disc enclosed swash plate axial plunger pump according to claim 1, characterized in that there is a variable air gap (23) between the plunger pump front end cap (11) and the conductor copper disc (19).
5. A working method of a permanent magnet disc type closed swash plate type axial plunger pump according to any one of claims 1 to 4, characterized by comprising the following steps:
after the permanent magnet disc type closed swash plate type axial plunger pump is installed, a motor (22) operates to drive a conductor copper disc (19) to rotate, the conductor copper disc (19) and a permanent magnet (9) in a permanent magnet disc (8) generate torque under the magnetic coupling effect, so that a central shaft (6) is driven to rotate, the central shaft (6) rotates to drive a plunger pump cylinder body (3) to rotate in a plunger pump body (2), a plunger (16) does reciprocating linear motion in a plunger hole to enable the volume of the plunger hole to change constantly, and the oil suction and oil discharge processes are completed through a flow distribution disc (4) and a plunger pump front cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110175465.0A CN112727721A (en) | 2021-02-06 | 2021-02-06 | Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110175465.0A CN112727721A (en) | 2021-02-06 | 2021-02-06 | Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112727721A true CN112727721A (en) | 2021-04-30 |
Family
ID=75596503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110175465.0A Pending CN112727721A (en) | 2021-02-06 | 2021-02-06 | Permanent magnet disc type closed swash plate type axial plunger pump and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638858A (en) * | 2021-09-09 | 2021-11-12 | 中铁工程装备集团有限公司 | Plunger pump swash plate assembly with dynamic and static characteristics self-feedback function and plunger pump |
| CN113898573A (en) * | 2021-10-14 | 2022-01-07 | 烟台杰瑞石油装备技术有限公司 | Flange structure and plunger pump |
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| CN103095097A (en) * | 2012-12-20 | 2013-05-08 | 上海曜中能源科技有限公司 | Transmission system with permanent magnet speed regulation clutch |
| CN104852552A (en) * | 2015-05-26 | 2015-08-19 | 广西传建工业技术有限公司 | Permanent magnetic speed regulator |
| RU179850U1 (en) * | 2017-11-28 | 2018-05-28 | Общество с ограниченной ответственностью "Инженерно-технический центр инновационных технологий" (ООО "Центр ИТ") | Submersible linear motor |
| CN108631546A (en) * | 2018-08-02 | 2018-10-09 | 安徽理工大学 | A kind of novel adjustable speed disc type asynchronous magnetic coupler |
| CN110067720A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of bearing bearing sliding plate auxiliary structure and swash plate plunger pump or motor comprising the structure |
| CN111010018A (en) * | 2019-12-09 | 2020-04-14 | 李文杰 | Novel disk permanent magnet speed regulator |
-
2021
- 2021-02-06 CN CN202110175465.0A patent/CN112727721A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103095097A (en) * | 2012-12-20 | 2013-05-08 | 上海曜中能源科技有限公司 | Transmission system with permanent magnet speed regulation clutch |
| CN104852552A (en) * | 2015-05-26 | 2015-08-19 | 广西传建工业技术有限公司 | Permanent magnetic speed regulator |
| RU179850U1 (en) * | 2017-11-28 | 2018-05-28 | Общество с ограниченной ответственностью "Инженерно-технический центр инновационных технологий" (ООО "Центр ИТ") | Submersible linear motor |
| CN110067720A (en) * | 2018-05-22 | 2019-07-30 | 钟彪 | A kind of bearing bearing sliding plate auxiliary structure and swash plate plunger pump or motor comprising the structure |
| CN108631546A (en) * | 2018-08-02 | 2018-10-09 | 安徽理工大学 | A kind of novel adjustable speed disc type asynchronous magnetic coupler |
| CN111010018A (en) * | 2019-12-09 | 2020-04-14 | 李文杰 | Novel disk permanent magnet speed regulator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638858A (en) * | 2021-09-09 | 2021-11-12 | 中铁工程装备集团有限公司 | Plunger pump swash plate assembly with dynamic and static characteristics self-feedback function and plunger pump |
| CN113638858B (en) * | 2021-09-09 | 2023-03-14 | 中铁工程装备集团有限公司 | Plunger pump swash plate assembly with self-feedback of dynamic and static characteristics and plunger pump |
| CN113898573A (en) * | 2021-10-14 | 2022-01-07 | 烟台杰瑞石油装备技术有限公司 | Flange structure and plunger pump |
| WO2023060665A1 (en) * | 2021-10-14 | 2023-04-20 | 烟台杰瑞石油装备技术有限公司 | Flange structure and plunger pump |
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Application publication date: 20210430 |
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