CN115539342A - Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support - Google Patents

Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support Download PDF

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Publication number
CN115539342A
CN115539342A CN202210523594.9A CN202210523594A CN115539342A CN 115539342 A CN115539342 A CN 115539342A CN 202210523594 A CN202210523594 A CN 202210523594A CN 115539342 A CN115539342 A CN 115539342A
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CN
China
Prior art keywords
annular
oil distribution
hydraulic pump
cylinder body
annular permanent
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
Application number
CN202210523594.9A
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Chinese (zh)
Inventor
霍志亮
徐赟
叶绍干
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Sipage Nantong Electro Hydraulic Control Technology Co ltd
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Sipage Nantong Electro Hydraulic Control Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sipage Nantong Electro Hydraulic Control Technology Co ltd filed Critical Sipage Nantong Electro Hydraulic Control Technology Co ltd
Priority to CN202210523594.9A priority Critical patent/CN115539342A/en
Publication of CN115539342A publication Critical patent/CN115539342A/en
Pending legal-status Critical Current

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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
    • F04B1/14—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 stationary cylinders
    • F04B1/16—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 stationary cylinders having two or more sets of cylinders or pistons
    • 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
    • F04B1/14—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 stationary cylinders
    • F04B1/141—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
    • F04B1/14—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 stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/143—Cylinders
    • 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
    • F04B1/14—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 stationary cylinders
    • F04B1/18—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 stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
    • F04B1/188—Plate-like distribution members
    • 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
    • F04B53/18—Lubricating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The invention provides a symmetrical floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support, which comprises: the plunger type oil distribution device comprises a shell assembly, a main shaft is rotatably arranged in the shell assembly, cylinder bodies matched with plungers are arranged in cavities on two sides of a plunger disc, a cylinder bottom flange is arranged on each cylinder body, and oil distribution discs matched with the cylinder bottom flange are arranged on two sides of each cavity; an annular permanent magnet is fixedly embedded in one side of the cylinder bottom flange close to the oil distribution disc; an annular electromagnet corresponding to the annular permanent magnet is fixedly embedded on one side, close to the cylinder bottom flange, of the oil distribution disc; an electromagnetic repulsive force of interaction is generated between the annular permanent magnet and the annular electromagnet; in the invention, the annular permanent magnet and the annular electromagnet correspond to each other in the same polarity, so that an electromagnetic repulsive force of interaction is generated between the cylinder bottom flange and the oil distribution disc, an oil film supporting force can be generated between the oil distribution disc and the surface of a friction amplitude of the cylinder body, the abrasion of the oil distribution disc and the friction amplitude of the cylinder body is reduced, the use stability of the pump is improved, and the service life is prolonged.

Description

Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support
Technical Field
The invention belongs to the technical field of plunger hydraulic pumps, and particularly relates to a symmetrical floating cup bidirectional plunger hydraulic pump with a controllable electromagnetic support.
Background
The plunger hydraulic pump has various varieties and very wide application scenes, and is applied to the fields of aerospace, ships, engineering machinery, agricultural machinery and the like. Although the structural principle of the plunger pump is approximately the same, there is a certain difference in the specific structural design for different application scenarios.
In the prior art, for example, chinese patent application publication No. CN108167151a discloses a symmetric through-shaft type quantitative axial plunger pump and a control method thereof, which belong to the technical field of hydraulic pump equipment, and are composed of a transmission shaft, a bearing, an axial positioning sleeve, a housing assembly, a middle housing, a transmission ball pair, a cylinder body part, a plunger support, a plunger and a port plate, wherein the port plate (oil distribution plate) is in contact with the cylinder body, when the port plate (oil distribution plate) is in a working process, friction between the port plate (oil distribution plate) and the cylinder body easily causes abrasion, and finally the plunger hydraulic pump is damaged and cannot operate; meanwhile, the friction can cause the increase of the rotational resistance between the valve plate (oil distribution plate) and the cylinder body, thus causing the lower energy efficiency; in addition, the friction can generate larger noise in the operation process, thereby influencing the use effect.
Therefore, a symmetrical floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support, which reduces abrasion, improves energy efficiency ratio and reduces noise, needs to be designed to solve the technical problems faced at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support, which has the advantages of reducing abrasion, improving the energy efficiency ratio and reducing noise.
The technical scheme of the invention is as follows: take controllable electromagnetic support's two-way plunger hydraulic pump of symmetry floating cup, include: the oil distribution device comprises a shell assembly, a cavity is arranged in the shell assembly, a main shaft is rotatably arranged in the shell assembly, a plunger disc is fixedly arranged on the outer side of the main shaft in the cavity, plungers are circumferentially arrayed on two sides of the plunger disc, a cylinder body matched with the plungers is arranged in the cavity on two sides of the plunger disc, a cylinder bottom flange is fixedly arranged on one side, away from the plungers, of the cylinder body, and oil distribution discs matched with the cylinder bottom flange are arranged on two sides of the cavity; an annular permanent magnet is fixedly embedded in one side, close to the oil distribution disc, of the cylinder bottom flange; an annular electromagnet corresponding to the annular permanent magnet is fixedly embedded in one side, close to the cylinder bottom flange, of the oil distribution disc; the annular permanent magnet and the annular electromagnet correspond to each other in the same polarity, and generate an electromagnetic repulsion force of interaction.
And a plurality of small cylindrical electromagnets are arranged on one side of the annular electromagnet, which is deviated from the cylinder bottom flange, and are distributed in the area corresponding to the high-pressure area and the low-pressure area of the oil liquid.
The outer side of the small cylindrical electromagnet is provided with an electromagnetic coil, the small cylindrical electromagnet generates magnetism after the electromagnetic coil is electrified, and the magnetism of the annular electromagnet is controlled by changing the current in the electromagnetic coil.
The annular electromagnet and the small cylindrical electromagnet are integrally formed by the same material.
At least two annular permanent magnets are concentrically and fixedly embedded in the side surface of the cylinder body.
The side surface of the cylinder body is provided with an annular deep groove matched with the annular permanent magnet, and the annular permanent magnet is fixedly arranged in the annular deep groove.
And a boss is arranged on the cylinder body between the two annular permanent magnets.
Annular electromagnets with the same number as the annular permanent magnets are concentrically and fixedly embedded in the side face of the oil distribution disc, and the annular electromagnets correspond to the annular permanent magnets one to one.
The side of the cylinder body is concentrically and fixedly embedded with two annular permanent magnets.
The shell assembly is provided with a front shell and a rear shell, and the front shell is detachably and fixedly connected with the rear shell.
The invention has the beneficial effects that:
(1) In the invention, the annular permanent magnet and the annular electromagnet correspond to each other in the same polarity, so that an electromagnetic repulsion force of interaction is generated between the cylinder bottom flange and the oil distribution disc, an oil film supporting force can be generated between the oil distribution disc and the surface of a friction amplitude of a cylinder body, the abrasion of the oil distribution disc and the friction amplitude of the cylinder body is reduced, the use stability of the pump is improved, and the service life is prolonged;
(2) Because the electromagnetic repulsion force of interaction is generated between the cylinder bottom flange and the oil distribution disc, the oil film lubrication characteristic between the cylinder bottom flange and the oil distribution disc is improved, and the cylinder bottom flange and the oil distribution disc do little work due to friction in the running process, so that the plunger hydraulic pump has higher energy efficiency ratio;
(3) The noise can be reduced by reducing the abrasion, and the using effect is improved.
Drawings
Fig. 1 is a structural schematic diagram of a symmetrical floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support according to the invention.
FIG. 2 is a schematic view showing one of the structures of a cylinder and an oil distribution pan according to the present invention.
FIG. 3 is a second schematic view showing the structure of the cylinder body and the oil distribution pan of the present invention.
FIG. 4 is a third schematic view showing the structure of the cylinder and the oil distribution pan according to the present invention.
Fig. 5 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 4.
Fig. 6 is a schematic structural view of the cylinder body in the present invention.
Fig. 7 is a cross-sectional view taken at B-B in fig. 6.
FIG. 8 is a schematic view showing the structure of an oil distribution pan according to the present invention.
Fig. 9 is a cross-sectional view at C-C in fig. 8.
Fig. 10 is a schematic view of a structure of a ring-shaped electromagnet in the present invention.
FIG. 11 is a schematic block diagram of a control circuit for the solenoid of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the invention, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.
The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word comprises the element listed after the word, and does not exclude the possibility that other elements may also be included. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
As shown in fig. 1 to 9, the symmetrical floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support is characterized by comprising: the oil distribution device comprises a shell assembly, wherein a cavity is formed in the shell assembly, a main shaft 7 is rotatably arranged in the shell assembly, a plunger disc 9 is fixedly arranged on the outer side of the main shaft 7 in the cavity, the plunger disc 9 and the main shaft 7 are of an integral structure, plungers 8 are circumferentially arrayed on two sides of the plunger disc 9, cylinder bodies 2 matched with the plungers 8 are arranged in the cavities on two sides of the plunger disc 9, a cylinder bottom flange 201 is fixedly arranged on one side, deviating from the plungers 8, of each cylinder body 2, and oil distribution discs 1 matched with the cylinder bottom flange 201 are arranged on two sides of each cavity; an annular permanent magnet 3 is fixedly embedded in one side of the cylinder bottom flange 201 close to the oil distribution disc 1; an annular electromagnet 4 corresponding to the annular permanent magnet 3 is fixedly embedded on one side of the oil distribution disc 1 close to the cylinder bottom flange 201; the annular permanent magnet 3 and the annular electromagnet 4 correspond to each other in the same polarity, and generate an electromagnetic repulsion force of interaction; in the embodiment, the annular permanent magnet 3 and the annular electromagnet 4 correspond to each other in the same polarity, so that an electromagnetic repulsive force generated by interaction between the cylinder bottom flange 201 and the oil distribution disc 1 can generate an oil film supporting force between the friction amplitude surfaces of the oil distribution disc 1 and the cylinder body 2, reduce the abrasion of the friction amplitude surfaces of the oil distribution disc 1 and the cylinder body 2, improve the service stability of the pump and prolong the service life; meanwhile, as the electromagnetic repulsion force generated by interaction between the cylinder bottom flange 201 and the oil distribution disc 1 is utilized, the oil film lubrication characteristic between the cylinder bottom flange 201 and the oil distribution disc 1 is improved, and the friction force between the cylinder bottom flange 201 and the oil distribution disc 1 is less in work in the running process, the plunger hydraulic pump has higher energy efficiency ratio; in addition, noise can be reduced and the use effect can be improved by reducing abrasion.
In the above embodiment, as a specific implementation manner of the annular electromagnet 4, as shown in fig. 10, a plurality of small cylindrical electromagnets 6 are arranged on a side of the annular electromagnet 4 away from the cylinder bottom flange 201, and the small cylindrical electromagnets 6 are distributed in an area corresponding to the high pressure area and the low pressure area of the oil liquid; the plunger hydraulic pump in the embodiment can run in two directions, and the high-pressure area and the low-pressure area of oil are just opposite under the working conditions of running in different directions, namely the high-pressure area under the forward running working condition is the low-pressure area under the reverse running working condition, and the low-pressure area under the forward running working condition is the high-pressure area under the reverse running working condition;
because the cylinder body 2 in the area corresponding to the high-pressure area of the oil is large under the action of the oil, and the thickness of a gap oil film between the cylinder body 2 and a friction amplitude of the oil distribution disc 1 in the high-pressure area of the cylinder body is small, so that the cylinder body is easy to wear, larger electromagnetic repulsion force is needed between the cylinder body 2 corresponding to the high-pressure area and the oil distribution disc 1 to ensure that the oil film supporting force between the oil distribution disc 1 and the surface of the friction amplitude of the cylinder body 2 is kept under the action of the oil in the high-pressure area, the small cylindrical electromagnets 6 corresponding to the corresponding high-pressure area are electrified according to the operating conditions in different directions to obtain larger electromagnetic repulsion force, the oil film lubrication characteristic is improved, the oil film supporting force between the oil distribution disc and the surface of the friction amplitude of the cylinder body is increased, the wear of the friction amplitude is reduced, and the dynamic stability and the transient reliability of the cylinder body and the oil distribution disc assembly are improved.
Furthermore, an electromagnetic coil 5 is arranged on the outer side of the small cylindrical electromagnet 6, after the electromagnetic coil 5 is electrified, the small cylindrical electromagnet 6 generates magnetism, and meanwhile, the annular electromagnet 4 connected with the electromagnetic coil 5 also generates magnetism, and the magnetism of the annular electromagnet 4 is controlled by changing the current in the electromagnetic coil 5; the current in the electromagnetic coil 5 is increased, the magnetism of the small cylindrical electromagnet 6 is increased, the electromagnetic repulsion between the small cylindrical electromagnet 6 and the annular permanent magnet 3 is increased, and the thickness of an oil film between the oil distribution disc 1 and the cylinder body 2 is increased; the current in the electromagnetic coil 5 is reduced, the magnetism of the small cylindrical electromagnet 6 is reduced, the electromagnetic repulsion between the small cylindrical electromagnet 6 and the annular permanent magnet 3 is reduced, and the thickness of an oil film between the oil distribution disc 1 and the cylinder body 2 is reduced.
As shown in fig. 11, the electromagnetic coil 5 is connected with a power amplifier, the power amplifier is connected with a control device for controlling the output current of the controller, the control device is connected with an input device, the current in the electromagnetic coil 5 mainly converts the detected external parameters such as pressure, rotating speed and the like into a control signal through the control device in a feedback mode and sends the control signal to the power amplifier, and the power amplifier converts the control signal into a current signal with a corresponding magnitude; when external parameters such as pressure, rotating speed and the like are increased, the output current of the power amplifier is increased, the electromagnetic repulsion between the cylinder body 2 and the oil distribution disc 1 is increased, and conversely, when the external parameters such as pressure, rotating speed and the like are decreased, the output current of the power amplifier is decreased, the electromagnetic repulsion between the cylinder body 2 and the oil distribution disc 1 is decreased, so that the thickness of an oil film between the cylinder body 2 and the oil distribution disc 1 under different working conditions is ensured; meanwhile, the input device can receive program instructions of signals such as voltage or current and the like sent by the upper computer, send the program instructions to the control device, convert the program instructions into control signals by the control device and send the control signals to the power amplifier to control the corresponding small cylindrical electromagnet 6 to be switched on or switched off.
The annular electromagnet and the small cylindrical electromagnet are integrally formed by the same material.
In some embodiments, the annular electromagnet 4 and the small cylindrical electromagnets 6 are integrally formed from the same material, and the annular electromagnet 4 is made magnetic by energizing a coil outside the small cylindrical electromagnets 6.
In some embodiments, at least two annular permanent magnets 3 are concentrically and fixedly embedded in the side surface of the cylinder body 2, and by increasing the number of the annular permanent magnets 3 and the annular electromagnets 4 in the oil distribution disc 1, a larger electromagnetic repulsion force can be generated between the oil distribution disc 1 and the cylinder body 2.
In some embodiments, the side surface of the cylinder body 2 is provided with an annular deep groove matched with the annular permanent magnet 3, the depth of the annular deep groove is matched with the thickness of the annular permanent magnet 3, and the annular permanent magnet 3 can be completely and fixedly embedded in the annular deep groove.
In some embodiments, a boss is arranged on the cylinder body 2 between the two annular permanent magnets 3, the boss is an annular protrusion integrated with the cylinder body 2, the boss and the cylinder body 2 are integrated, and the boss supports between the cylinder body 2 and the oil distribution disc 1, so that a gap can be generated between the annular permanent magnets 3 and the annular electromagnets 4, and abrasion caused by friction between the two is avoided.
In some embodiments, the annular electromagnets 4 with the same number as the annular permanent magnets 3 are concentrically and fixedly embedded in the side surface of the oil distribution disc 1, the annular electromagnets 4 correspond to the annular permanent magnets 3 one by one, and electromagnetic repulsion is generated between the corresponding annular electromagnets 4 and the corresponding annular permanent magnets 3 in the operation process.
In some embodiments, two annular permanent magnets 3 are fixedly embedded concentrically in the side surface of the cylinder body 2, and correspondingly, two annular electromagnets 4 are fixedly embedded in the oil distribution disc 1.
As shown in fig. 1, the housing assembly has a front housing 10 and a rear housing 11, and the front housing 10 and the rear housing 11 are detachably and fixedly connected, and specifically, the front housing 10 and the rear housing 11 are detachably and fixedly connected by bolts.
Thus far, various embodiments of the present invention have been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
The above-mentioned embodiments only express some embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a take controllable electromagnetism to support symmetrical two-way plunger hydraulic pump of cup that floats which characterized in that includes:
the oil distribution device comprises a shell assembly, a cavity is arranged in the shell assembly, a main shaft is rotatably arranged in the shell assembly, a plunger disc is fixedly arranged on the outer side of the main shaft in the cavity, plungers are circumferentially arrayed on two sides of the plunger disc, a cylinder body matched with the plungers is arranged in the cavity on two sides of the plunger disc, a cylinder bottom flange is fixedly arranged on one side, away from the plungers, of the cylinder body, and oil distribution discs matched with the cylinder bottom flange are arranged on two sides of the cavity;
an annular permanent magnet is fixedly embedded in one side, close to the oil distribution disc, of the cylinder bottom flange;
an annular electromagnet corresponding to the annular permanent magnet is fixedly embedded in one side, close to the cylinder bottom flange, of the oil distribution disc;
the annular permanent magnet and the annular electromagnet correspond to each other in the same polarity, and generate an electromagnetic repulsion force of interaction.
2. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 1, wherein: and a plurality of small cylindrical electromagnets are arranged on one side of the annular electromagnet, which is deviated from the cylinder bottom flange, and are distributed in the area corresponding to the high-pressure area and the low-pressure area of the oil liquid.
3. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 2, wherein: the outer side of the small cylindrical electromagnet is provided with an electromagnetic coil, the small cylindrical electromagnet generates magnetism after the electromagnetic coil is electrified, and the magnetism of the annular electromagnet is controlled by changing the current in the electromagnetic coil.
4. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 2, characterized in that: the annular electromagnet and the small cylindrical electromagnet are integrally formed by the same material.
5. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 1, wherein: at least two annular permanent magnets are concentrically and fixedly embedded in the side surface of the cylinder body.
6. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 5, wherein: the side surface of the cylinder body is provided with an annular deep groove matched with the annular permanent magnet, and the annular permanent magnet is fixedly arranged in the annular deep groove.
7. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 5, wherein: and a boss is arranged on the cylinder body between the two annular permanent magnets.
8. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 5, wherein: annular electromagnets with the same number as the annular permanent magnets are concentrically and fixedly embedded in the side surface of the oil distribution disc, and the annular electromagnets correspond to the annular permanent magnets one to one.
9. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 5, wherein: two annular permanent magnets are fixedly embedded in the side face of the cylinder body concentrically.
10. The symmetrical floating cup bidirectional plunger hydraulic pump with the controllable electromagnetic support as claimed in claim 1, wherein: the shell assembly is provided with a front shell and a rear shell, and the front shell is detachably and fixedly connected with the rear shell.
CN202210523594.9A 2022-05-14 2022-05-14 Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support Pending CN115539342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210523594.9A CN115539342A (en) 2022-05-14 2022-05-14 Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210523594.9A CN115539342A (en) 2022-05-14 2022-05-14 Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support

Publications (1)

Publication Number Publication Date
CN115539342A true CN115539342A (en) 2022-12-30

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ID=84724090

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Application Number Title Priority Date Filing Date
CN202210523594.9A Pending CN115539342A (en) 2022-05-14 2022-05-14 Symmetric floating cup bidirectional plunger hydraulic pump with controllable electromagnetic support

Country Status (1)

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