An electromagnetic hydraulic pump station

Abstract

The present invention discloses an electromagnetic hydraulic pump station, which includes: an electromagnetic hydraulic pump assembly, and the electromagnetic hydraulic pump assembly includes: a left piston pump, a right piston pump, a permanent magnet, and an electromagnetic piston assembly; both ends of the electromagnetic piston assembly are a right electromagnetic piston and a left electromagnetic piston, the right electromagnetic piston is installed in the right piston pump, the left electromagnetic piston is installed in the left piston pump, and the permanent magnet is located between the left electromagnetic piston and the right electromagnetic piston; both the left piston pump and the right piston pump are provided with at least two liquid through holes; control valves are arranged in the left and right piston pumps, and the control valves are used to control the opening and closing of the oil circuit; a plurality of electromagnetic hydraulic pump assemblies can be provided and can be connected in series or in parallel; and other components, achieving: high volumetric efficiency, small leakage, relatively simple manufacturing process, easy to mass produce, capable of reducing manufacturing and usage costs, and high energy utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic pump equipment, and particularly to an electromagnetic hydraulic pump station. Background Art

[0002] Existing mainstream hydraulic pumps include: gear pumps, vane pumps, piston pumps, etc., and the above-mentioned hydraulic pumps all have certain defects. For example: although the gear pump is small in size and simple in structure, its pump shaft is subjected to unbalanced forces during operation, and the wear is serious after long-term operation, resulting in large leakage; although the vane pump (double-acting vane pump, single-acting vane pump) has uniform flow and stable operation, its structure is complex, resulting in a very time-consuming process for assembly and maintenance, and requires a relatively professional master for handling, with high manufacturing and usage costs; although the piston pump is resistant to high pressure and has small leakage, its structure is also complex, and high requirements are imposed on materials and processing accuracy, and high requirements are also imposed on the cleanliness of oil, and its manufacturing and usage costs are high.

[0003] Furthermore, the existing hydraulic pump station systems generally use motors as power sources, have an idling gap, and have low energy utilization efficiency.

[0004] Therefore, there is an urgent need for an electromagnetic hydraulic pump station that can solve one or more of the above problems. Summary of the Invention

[0005] To solve one or more problems existing in the prior art, the present invention provides an electromagnetic hydraulic pump station. The technical solution adopted by the present invention to solve the above problems is: an electromagnetic hydraulic pump station, which includes: an electromagnetic hydraulic pump assembly, and the electromagnetic hydraulic pump assembly includes: a left piston pump, a right piston pump, a permanent magnet, and an electromagnetic piston assembly. The permanent magnet is located between the left piston pump and the right piston pump, and the central axes of the permanent magnet, the left and right piston pumps are on the same horizontal line;

[0006] Both ends of the electromagnetic piston assembly are a right electromagnetic piston and a left electromagnetic piston respectively. The left and right electromagnetic pistons are connected together by a non-magnetic conductive material. The left and right electromagnetic pistons are a combination of a piston and an electromagnet. The right electromagnetic piston is installed in the right piston pump, and the left electromagnetic piston is installed in the left piston pump. The permanent magnet is located between the left electromagnetic piston and the right electromagnetic piston;

[0007] Both the left piston pump and the right piston pump are provided with at least two liquid passing holes, denoted as a first liquid passing hole and a second liquid passing hole. At least one of the first liquid passing hole and the second liquid passing hole is provided, and the liquid passing holes are used for liquid inlet and liquid discharge;

[0008] Control valves are arranged in the left and right piston pumps, and the control valves are used to control the opening and closing of the oil circuit;

[0009] The electromagnetic hydraulic pump assemblies can be provided in multiple numbers and can be connected in series or in parallel.

[0010] Further, the first liquid passage holes on the left and right piston pumps are connected to the inlet pipe, and the second liquid passage holes on the left and right piston pumps are connected to the high-pressure outlet pipe.

[0011] Further, the first liquid passage hole on the left piston pump is connected to the first liquid passage hole on the right piston pump, and the second liquid passage holes on the left and right piston pumps are respectively connected to the inlet pipe and the high-pressure outlet pipe.

[0012] Further, the electromagnetic hydraulic pump assembly at the next level is denoted as the second electromagnetic hydraulic pump assembly, and the second electromagnetic hydraulic pump assembly includes: a second left piston pump, a second right piston pump, a permanent magnet, and an electromagnetic piston assembly;

[0013] The oil circuits of the left piston pump and the right piston pump are in communication, the oil circuits of the second left piston pump and the second right piston pump are in communication, the right piston pump is connected to the first inlet pipe, the left piston pump is connected to the oil circuit of the second left piston pump / second right piston pump, and the second right piston pump / second left piston pump is connected to the outlet pipe.

[0014] Further, the left piston pump and the right piston pump are symmetrically arranged.

[0015] Further, the control valve is a check valve.

[0016] The beneficial value obtained by the present invention is as follows: By ingeniously constructing the electromagnetic hydraulic pump assembly with the left piston pump, the right piston pump, the permanent magnet, and the electromagnetic piston assembly, and corresponding oil circuits are provided for single-cycle oil pumping or multiple series / parallel pressurized oil pumping; in terms of structure, it has high volumetric efficiency, small leakage, and can operate under high pressure. At the same time, the manufacturing process is relatively simple, easy to mass-produce, and can reduce manufacturing and usage costs; by symmetrically arranging the left and right pumps, the work is improved and energy consumption is reduced; in terms of work, complex transmission mechanisms such as drive shafts and swash plates are reduced, reducing subsequent design modification and production costs, and reducing frictional losses of internal mechanisms; by cooperating the permanent magnet with the electromagnetic piston, the piston can obtain a greater thrust, thereby improving work efficiency and energy utilization rate. The above greatly improves the practical value of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of Embodiment I of the present invention;

[0018] Figure 2 It is a schematic diagram of Embodiment II of the present invention;

[0019] Figure 3Schematic diagram of the movement of the first state of Embodiment III of the present invention;

[0020] Figure 4 Schematic diagram of the movement of the second state of Embodiment III of the present invention;

[0021] Figure 5 Schematic diagram of the movement of the first state of Embodiment V of the present invention;

[0022] Figure 6 Schematic diagram of the movement of the second state of Embodiment V of the present invention.

[0023]

Reference Signs

[0024] 1 ··· Permanent magnet

[0025] 2 ··· Liquid inlet pipe

[0026] 3 ··· High-pressure liquid outlet pipe

[0027] 4 ··· Electromagnetic piston assembly

[0028] 11 ··· Right electromagnetic piston

[0029] 12 ··· Right piston pump

[0030] 13 ··· First liquid inlet pipe

[0031] 21 ··· Left electromagnetic piston

[0032] 22 ··· Left piston pump

[0033] 31 ··· Second left electromagnetic piston

[0034] 32 ··· Second left piston pump

[0035] 41 ··· Second right electromagnetic piston

[0036] 42 ··· Second right piston pump

[0037] 43 ··· Liquid outlet pipe. Detailed Embodiments

[0038] To make the above objects, features, and advantages of the present invention more understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from this description, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0039] As Figures 1 - 6As shown in the figure, the present invention discloses an electromagnetic hydraulic pump station, which includes: an electromagnetic hydraulic pump assembly, and the electromagnetic hydraulic pump assembly includes: a left piston pump 22, a right piston pump 12, a permanent magnet 1, and an electromagnetic piston assembly 4. The permanent magnet 1 is located between the left piston pump 22 and the right piston pump 12, and the central axes of the permanent magnet 1, the left and right piston pumps are on the same horizontal line (the purpose is: to make the pulsation generated during operation smaller, which is beneficial to protecting the equipment body and the oil circuit).

[0040] Both ends of the electromagnetic piston assembly 4 are respectively a right electromagnetic piston 11 and a left electromagnetic piston 21. The left and right electromagnetic pistons are connected together by a non-magnetic material. The left and right electromagnetic pistons are a combination of a piston and an electromagnet. The right electromagnetic piston 11 is installed in the right piston pump 12, and the left electromagnetic piston 21 is installed in the left piston pump 22. The permanent magnet 1 is located between the left electromagnetic piston 21 and the right electromagnetic piston 11.

[0041] Both the left piston pump 22 and the right piston pump 12 are provided with at least two liquid passing holes, denoted as the first liquid passing hole and the second liquid passing hole. At least one of the first liquid passing hole and the second liquid passing hole is provided, and the liquid passing holes are used for liquid inlet and liquid discharge.

[0042] Control valves are arranged in the left and right piston pumps, and the control valves are used to control the opening and closing of the oil circuit.

[0043] A plurality of electromagnetic hydraulic pump assemblies can be provided and can be connected in series or in parallel.

[0044] It should be noted that since the equipment works by the cooperation of an electromagnet and a permanent magnet, the ways to increase the output can be: increasing the cylinder volume (high cost, and increasing the diameter will cause the pressure to decrease), increasing the movement stroke of the piston, and increasing the compression frequency of the piston. Among them, increasing the movement stroke of the piston under the same specification of the permanent magnet will easily lead to insufficient compression force (the longer the distance, the smaller the magnetic force received), and increasing the volume of the permanent magnet will cause the manufacturing and maintenance costs to rise sharply. Excessive magnetic force will also increase the design costs of the shell and mating components. Therefore, the most ideal way to increase the output is to increase the compression frequency of the piston.

[0045] Furthermore, when the equipment is working, the pulsation generated during operation is made smaller by a symmetrical method to protect the oil cylinder and the oil circuit. At the same time, the two poles of the permanent magnet are used to drive the electromagnet to perform compression work, and the compression angle remains unchanged during work (the direction of the output torque remains unchanged). Compared with the traditional motor compression, the energy utilization efficiency is higher.

[0046] It should be noted that the joints of the above components are sealed; the left piston pump 22 and the right piston pump 12 are symmetrically arranged to improve efficiency. The control valve is a one-way valve. The electromagnets in the left and right electromagnetic pistons are arranged at the non-acting positions between the piston and the cylinder block. The reciprocating movements of the left and right electromagnetic pistons are limited to prevent direct collision with the permanent magnet 1. The electromagnets in the left and right electromagnetic pistons are controlled by a main controller, and the working direction of each process is determined by changing the current flow direction.

[0047] Specifically, as Figure 1 shown, this is an example of Embodiment I and a state during implementation. Its oil circuit connection is as follows: the first liquid passage holes on the left and right piston pumps are connected to the oil inlet pipe, and the second liquid passage holes on the left and right piston pumps are connected to the high-pressure liquid outlet pipe 3. After the electromagnets in the left and right electromagnetic pistons are energized, for each one-way compression movement, the current direction driving the electromagnet to work is switched once to achieve the purpose of cyclic reciprocating work. Figure 1 Under the action of the electromagnet, the electromagnetic piston assembly 4 moves to the left and reaches the limiting effect. During this period, the oil in the left piston pump 22 enters the high-pressure liquid outlet pipe 3 through the one-way valve and the oil circuit. The right piston pump 12 draws oil from the oil cylinder through the liquid inlet pipe 2. During this period, the electromagnetic piston assembly 4 is affected by the permanent magnet 1. Under the principle of like poles repelling and opposite poles attracting, the two acting forces cause the electromagnetic piston assembly 4 to accelerate and move towards the left. In this implementation method, each one-way movement is a process, and each process discharges oil to the high-pressure liquid outlet pipe 3.

[0048] Specifically, as Figure 2 shown, this is an example of Embodiment II and a state during implementation. Embodiment II is a pressurized oil pumping method. Its oil circuit connection is as follows: the first liquid passage hole on the left piston pump 22 is connected to the first liquid passage hole on the right piston pump 12, and the second liquid passage holes on the left and right piston pumps are respectively connected to the liquid inlet pipe and the high-pressure liquid outlet pipe. Figure 2 Under the action of the electromagnet, the electromagnetic piston assembly 4 moves to the left and reaches the limiting effect. During this period, the left piston pump 22 pressurizes and injects the oil in it into the right piston pump 12. At this time, the right piston pump 12 can also inject high-pressure gas or perform a liquid inlet action (the oil pressing cavity of the right piston pump 12 can be smaller than that of the left piston pump 22) to increase the pressure; the next action is that the electromagnetic piston assembly 4 moves to the right to discharge the high-pressure oil in the right piston pump 12, and during this period, the left piston pump 22 performs a liquid inlet action. In this implementation method, each one-way movement is a process, and two processes form a cycle. During the cycle, one process performs pressurization and the other performs pressurized oil discharge.

[0049] Specifically, as Figures 3 - 6As shown, these are two states of Embodiment III and Real-time Mode V respectively. The difference between Embodiment III and Real-time Mode V lies in the different connections of the oil circuits, such that the movement of the electromagnetic piston assembly 4 at the first stage and the electromagnetic piston assembly 4 at the next stage is in the same or opposite directions. Among them, the electromagnetic hydraulic pump assembly 4 at the first stage is for primary pressurization, and the electromagnetic hydraulic pump assembly 4 at the next stage is for secondary pressurization and oil discharge.

[0050] Its oil circuit connection is as follows: The electromagnetic hydraulic pump assembly 4 at the next stage is denoted as the second electromagnetic hydraulic pump assembly, and the second electromagnetic hydraulic pump assembly includes: a second left piston pump 32, a second right piston pump 42, a permanent magnet 1, and an electromagnetic piston assembly 4 (connected to a second left electromagnetic piston and a second right electromagnetic piston at both ends);

[0051] The oil circuits of the left piston pump 22 and the right piston pump 12 are connected, the oil circuits of the second left piston pump 32 and the second right piston pump 42 are connected, the right piston pump 12 is connected to the first liquid inlet pipe 13, the oil circuit of the left piston pump 22 is connected to the second left piston pump 32 / second right piston pump 42, and the second right piston pump 42 / second left piston pump 32 is connected to the liquid outlet pipe 43. Embodiment III and Real-time Mode V achieve multiple pressurizations by connecting one more stage of the electromagnetic hydraulic pump assembly in series. Its principle is the same as that of Embodiment II. The primary electromagnetic hydraulic pump assembly provides compressed oil to the electromagnetic hydraulic pump assembly at the next stage, and then the electromagnetic hydraulic pump assembly at the next stage compresses again and finally discharges the oil. Multiple pressurizations can be achieved by connecting several stages of the electromagnetic hydraulic pump assembly in series.

[0052] In fact, a piston pump is composed of multiple reciprocating piston pumps in parallel. When the drive shaft drives the cylinder block to rotate, the swash plate pulls or pushes the piston out of or into the cylinder block to complete the oil suction and discharge process. Such a structure is complex, requires high material and processing precision, is expensive, and has large energy losses during mechanical transmission. However, the present invention utilizes the principle of like poles repelling and opposite poles attracting in a magnetic field. By changing the electrodes of the electromagnet, the magnetic poles of the electromagnet are changed to achieve mutual attraction or repulsion with the permanent magnet, enabling the reciprocating piston pump to complete the oil suction and discharge process. This process reduces complex transmission mechanisms such as drive shafts and swash plates, saves costs, and also reduces frictional losses. After two electromagnetic pistons are connected and fixed into an integral electromagnetic piston assembly through non-magnetic conductive materials, when the two electromagnets are energized, two magnetic fields with opposite polarities are generated on the two polar surfaces of the permanent magnet, such that the force between the electromagnetic piston assembly and the permanent magnet is doubled, and the energy utilization rate is higher.

[0053] Among them, the parallel connection embodiment is to connect the output ends of two primary electromagnetic hydraulic pump assemblies in parallel and then connect them to the working end to achieve parallel output.

[0054] In summary, in the present invention, the left piston pump, the right piston pump, the permanent magnet, and the electromagnetic piston assembly are ingeniously structured to form the electromagnetic hydraulic pump assembly, and the oil circuits are correspondingly arranged to pump oil in a single cycle or to pump oil under pressure in multiple series / parallel combinations; in terms of structure, it has high volumetric efficiency, small leakage, and can operate under high pressure. At the same time, the manufacturing process is relatively simple, easy to mass-produce, and can reduce manufacturing and usage costs; the left and right pumps are symmetrically arranged to improve operation and reduce energy consumption; in terms of operation, complex transmission mechanisms such as drive shafts and swash plates are reduced, reducing subsequent design modification and production costs, and reducing frictional losses of internal mechanisms; the cooperation of the permanent magnet and the electromagnetic piston enables the piston to obtain a greater thrust, thereby improving work efficiency and energy utilization rate. The above greatly improves the practical value of the present invention.

[0055] The embodiments described above merely represent one or more implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. An electromagnetic hydraulic pump station, characterized in that, Comprising: An electromagnetic hydraulic pump assembly, the electromagnetic hydraulic pump assembly comprising: a left piston pump, a right piston pump, a permanent magnet, and an electromagnetic piston assembly. The permanent magnet is located between the left piston pump and the right piston pump, and the central axes of the permanent magnet, the left and right piston pumps are on the same horizontal line; The two ends of the electromagnetic piston assembly are respectively a right electromagnetic piston and a left electromagnetic piston. The left and right electromagnetic pistons are connected together by a non-magnetic material. The left and right electromagnetic pistons are a combination of a piston and an electromagnet. The right electromagnetic piston is installed in the right piston pump, and the left electromagnetic piston is installed in the left piston pump. The permanent magnet is located between the left electromagnetic piston and the right electromagnetic piston; Both the left piston pump and the right piston pump are provided with at least two liquid through holes, denoted as a first liquid through hole and a second liquid through hole. At least one of the first liquid through hole and the second liquid through hole is provided, and the liquid through hole is used for liquid inlet and liquid discharge; Control valves are arranged in the left and right piston pumps, and the control valves are used to control the opening and closing of the oil circuit; A plurality of the electromagnetic hydraulic pump assemblies can be provided and can be connected in series or in parallel.

2. An electromagnetic hydraulic pump station according to claim 1, characterized in that, The first liquid through holes on the left and right piston pumps are connected to the inlet pipe, and the second liquid through holes on the left and right piston pumps are connected to the high-pressure liquid outlet pipe.

3. An electromagnetic hydraulic pump station according to claim 1, characterized in that, The first liquid through hole on the left piston pump is connected to the first liquid through hole on the right piston pump, and the second liquid through holes on the left and right piston pumps are respectively connected to the inlet pipe and the high-pressure liquid outlet pipe.

4. An electromagnetic hydraulic pump station according to claim 1, characterized in that, The next-level electromagnetic hydraulic pump assembly is denoted as a second electromagnetic hydraulic pump assembly. The second electromagnetic hydraulic pump assembly comprises: a second left piston pump, a second right piston pump, a permanent magnet, and an electromagnetic piston assembly; The oil circuits of the left piston pump and the right piston pump are communicated. The oil circuits of the second left piston pump and the second right piston pump are communicated. The right piston pump is connected to the first inlet pipe. The left piston pump is connected to the oil circuit of the second left piston pump / second right piston pump. The second right piston pump / second left piston pump is connected to the liquid outlet pipe.

5. An electromagnetic hydraulic pump station according to claim 1, characterized in that, The left piston pump and the right piston pump are symmetrically arranged.

6. An electromagnetic hydraulic pump station according to claim 1, characterized in that, The control valve is a one-way valve.

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