CN111648932A - Extended bridge type electromagnetic hydraulic pump and use method thereof - Google Patents

Abstract

An extension bridge type electromagnetic hydraulic pump and a using method thereof comprise a magnet sucker, wherein the magnet sucker comprises an upper magnet sucker and a lower magnet sucker, a piston sucker plate is movably arranged between the upper magnet sucker and the lower magnet sucker, and electromagnet coils are arranged in the upper magnet sucker and the lower magnet sucker and used for driving the piston sucker plate to reciprocate; the piston sucking plate is used for being matched with the compression cavity, and the compression cavity is provided with a one-way valve type oil hole. The electromagnetic hydraulic pump has the advantages of quick response, simple structure, low cost, large-scale batch production, energy conservation, emission reduction, high efficiency and high performance.

Description

Extended bridge type electromagnetic hydraulic pump and use method thereof

Technical Field

The invention belongs to the field of electromagnetic hydraulic pumps, and particularly relates to an extended bridge type electromagnetic hydraulic pump and a using method thereof.

Background

The existing electromagnetic hydraulic pump has low pressure and low power, and only has the power transmission function and the unpowered compression function. At present, mechanical plunger pumps, gear pumps, electric hydraulic pumps and vane pumps are mainly used in the market, and the mechanical plunger pumps, the gear pumps, the electric hydraulic pumps and the vane pumps are complex in structure, low in power transmission efficiency and incapable of being large-sized. In addition, the high-end plunger pump in the market is imported, so that the purchase cost is high, and the industrial use cost is high.

Disclosure of Invention

In view of the technical problems in the background art, the extended bridge type electromagnetic hydraulic pump and the use method thereof have the advantages of fast response, simple structure, low cost, large-scale batch production, energy conservation, emission reduction, high efficiency and high performance.

In order to solve the technical problems, the invention adopts the following technical scheme to realize:

an extended bridge type electromagnetic hydraulic pump comprises a magnet sucker, wherein the magnet sucker comprises an upper magnet sucker and a lower magnet sucker, a piston sucker plate is movably arranged between the upper magnet sucker and the lower magnet sucker, electromagnetic coils are arranged in the upper magnet sucker and the lower magnet sucker, and the electromagnetic coils are used for driving the piston sucker plate to reciprocate; the piston sucking plate is used for being matched with the compression cavity, and the compression cavity is provided with a one-way valve type oil hole.

In a preferred scheme, the upper magnet sucker and the lower magnet sucker are fixed through a fixing frame.

In the preferred scheme, the side walls of the upper magnet sucker and the lower magnet sucker are provided with photoelectric sensor mounting holes, and the photoelectric sensor mounting holes are used for mounting photoelectric sensors.

In a preferred scheme, the one-way valve type oil hole comprises a one-way valve type oil inlet hole and a one-way valve type oil outlet hole, the one-way valve type oil inlet hole is used for installing an oil inlet one-way valve, and the one-way valve type oil outlet hole is used for installing an oil outlet one-way valve; the piston attracting plate comprises a piston and an attracting plate, the piston is used for being matched with the compression cavity, and the compression cavity is arranged inside the magnet sucker or outside the magnet sucker.

In a preferred scheme, the lower magnet sucker comprises a sucker seat, an annular groove is formed in the sucker seat, an electromagnet coil is arranged at the bottom of the annular groove, and a compression cavity is formed in the middle of the sucker seat; the suction plate is of an annular structure and is used for being inserted into the annular groove, and the piston is used for being inserted into the compression cavity; the upper magnet sucker and the lower magnet sucker have the same structure.

In a preferred scheme, the lower magnet sucker comprises a sucker box, two first non-magnetic conductive plates are arranged in the sucker box, the sucker box is divided into an upper placing cavity and a lower placing cavity by the two first non-magnetic conductive plates, an electromagnet coil is arranged in the upper placing cavity, and a permanent magnet is arranged in the lower placing cavity; the compression chamber is arranged at two outer walls of the suction cup box.

In the preferred scheme, the suction plate is of a plate structure, the edges of two sides of the suction plate are provided with pistons, the two sides of the side wall of the upper part of the lower magnet sucker are provided with sliding groove openings, the two sides of the side wall of the lower part of the upper magnet sucker are provided with sliding groove openings, and the suction plate is used for moving up and down at the sliding groove openings.

In a preferred scheme, the compression cavity is fixed with the sucker box through a second non-magnetic conductive plate; the piston is connected with the suction plate through a third non-magnetic conductive plate; the upper edge of the lower magnet sucker is of a sawtooth structure, the lower edge of the upper magnet sucker is of a sawtooth structure, and the sawtooth structure of the lower magnet sucker is meshed with the sawtooth structure of the upper magnet sucker.

In a preferred scheme, the lower magnet sucker comprises a sucker box, two permanent magnets are arranged in the sucker box, two fixed magnetic conduction frames are arranged on the upper surface of the sucker box, an electromagnet installation gap is arranged between the two fixed magnetic conduction frames, and the electromagnet installation gap is used for installing an electromagnet coil; the compression cavity is positioned at two sides of the suction cup box, the suction plate is of a plate structure, the edges of two sides of the suction plate are provided with pistons, the upper surface and the lower surface of the suction plate are provided with movable magnetic conduction frames, and the movable magnetic conduction frames and the fixed magnetic conduction frames are mutually inserted and arranged.

This patent can reach following beneficial effect:

this electromagnetic hydraulic pump, adopt ripe electro-magnet and neodymium iron boron magnet on the market, utilize the load and the uninstallation state of the reversible control neodymium iron boron magnet magnetic force of electromagnet coil polarity, make neodymium iron boron magnet's magnetic force turn into mobilizable compression moment, the adsorbable ferromagnetic substance 640 times of self weight of every kilogram neodymium iron boron magnet, if this electromagnetic hydraulic pump adopts dozens of kilograms of neodymium iron boron magnet, then can produce the magnetic adsorption ability more than ten tons, thereby it is fast to make the electromagnetic hydraulic pump reaction, moreover, the steam generator is simple in structure, low cost, but large-scale mass production, still have energy saving and emission reduction advantage, high efficiency and high performance.

The side wall of the suction plate and the inner wall of the annular groove are always in a contact state, so that the magnetic conduction loss can be greatly reduced, the magnetic conduction efficiency is improved, and the test results show that: when the magnetic force transmission distance in the air is 1mm, the magnetic force is attenuated by more than ninety-five percent; in the technical scheme, when the conduction distance is 30mm, the magnetic force still has sixty percent.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a three-dimensional structural view of the present invention in example 1;

FIG. 2 is a cross-sectional view of the present invention in example 1;

FIG. 3 is a three-dimensional structural view of a lower magnet chuck of the present invention in example 1;

FIG. 4 is a three-dimensional structural view of a piston suction plate of the present invention in example 1;

FIG. 5 is a schematic diagram showing the operation of the present invention in embodiment 1;

FIG. 6 is a three-dimensional structural view of the present invention in example 2;

FIG. 7 is a view showing the connection between the lower magnet cup and the piston suction plate according to the present invention in example 2;

FIG. 8 is a three-dimensional structural view of a piston suction plate of the present invention in example 2;

FIG. 9 is a three-dimensional structural view of a lower magnet chuck of the present invention in example 2;

FIG. 10 is an internal structural view of a lower magnet chuck of the present invention in example 2;

FIG. 11 is a top view of the present invention in example 3;

FIG. 12 is a cross-sectional view taken along the A-A plane of the present invention in example 3;

FIG. 13 is a sectional view taken along the plane B-B of the present invention in example 3;

FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13 in accordance with the present invention in example 3;

FIG. 15 is a front view of the suction plate of the piston of the present invention in embodiment 3;

FIG. 16 is a side view of a suction plate of the piston of the present invention in embodiment 3;

FIG. 17 is a schematic view showing the structure of a lower magnetic chuck in accordance with the present invention in example 3;

FIG. 18 is a schematic view showing the operation of the permanent magnet and the electromagnet coil according to the present invention in embodiment 3;

fig. 19 is a diagram showing the operation of the present invention in embodiment 3.

In the figure: the device comprises an upper magnet sucker 1, a lower magnet sucker 2, an annular groove 201, a piston sucker plate 3, a piston 301, a sucker plate 302, a fixed frame 4, an electromagnet coil 5, a photoelectric sensor mounting hole 6, a check valve type oil hole 7, a first non-magnetic conductive plate 8, a compression cavity 9, a third non-magnetic conductive plate 10, a soft magnetic plate 11, a second non-magnetic conductive plate 12, a fixed magnetic conductive frame 13, an oil inlet check valve 14, an oil outlet check valve 15, a permanent magnet 16 and an electromagnet mounting gap 17.

Detailed Description

Example 1:

the preferable scheme is as shown in fig. 1 to 5, the extended bridge type electromagnetic hydraulic pump comprises a magnet sucker, wherein the magnet sucker comprises an upper magnet sucker 1 and a lower magnet sucker 2, a piston sucker plate 3 is movably arranged between the upper magnet sucker 1 and the lower magnet sucker 2, electromagnet coils 5 are respectively arranged in the upper magnet sucker 1 and the lower magnet sucker 2, and the electromagnet coils 5 are used for driving the piston sucker plate 3 to reciprocate; the piston suction plate 3 is used for being matched with the compression cavity 9, and the compression cavity 9 is provided with a one-way valve type oil hole 7. The magnet chucks are soft magnetic materials such as silicon steel. The piston suction plate 3 is made of a soft magnetic material, such as silicon steel. Only one electromagnet coil 5 is shown in fig. 2.

Further, the upper magnet chuck 1 and the lower magnet chuck 2 are fixed by a fixing frame 4. The fixing frame 4 is made of a non-magnetic material, such as austenitic stainless steel.

Further, the side walls of the upper magnet sucker 1 and the lower magnet sucker 2 are provided with photoelectric sensor mounting holes 6, and the photoelectric sensor mounting holes 6 are used for mounting photoelectric sensors.

Furthermore, the one-way valve type oil hole 7 comprises a one-way valve type oil inlet hole and a one-way valve type oil outlet hole, the one-way valve type oil inlet hole is used for installing an oil inlet one-way valve 14, and the one-way valve type oil outlet hole is used for installing an oil outlet one-way valve 15; the piston suction plate 3 comprises a piston 301 and a suction plate 302, the piston 301 is used for being matched with the compression cavity 9, and the compression cavity 9 is arranged inside the magnet sucker or outside the magnet sucker.

Further, the lower magnet sucker 2 comprises a sucker seat, an annular groove 201 is formed in the sucker seat, an electromagnet coil 5 is arranged at the bottom of the annular groove 201, and a compression cavity 9 is formed in the middle of the sucker seat; the suction plate 302 is of an annular structure, the suction plate 302 is used for being inserted into the annular groove 201, and the piston 301 is used for being inserted into the compression cavity 9; the upper magnet sucker 1 and the lower magnet sucker 2 have the same structure.

The working principle of this embodiment is described below with reference to fig. 5:

in fig. 5, the upper and lower electromagnet coils are named electromagnet coil a and electromagnet coil B, respectively, and a photosensor a1 is installed at a position a1, and a photosensor a2 is installed at a position a 2. When the electromagnet coil B is powered on, electromagnetic force is generated, the N pole and the S pole are generated, the piston suction plate 3 (soft magnetic material) is arranged, and the suction plate 302 of the piston suction plate 3 is attached to the inner wall of the annular groove 201; between the S pole and the N pole, the S pole and the N pole at the lower end of the electromagnet coil B are conducted to form a closed magnetic circuit. And the electromagnetic force pulls the piston suction plate 3 from the position C1 to the position C2, so that the plunger of the lower compression cavity 9 moves from C1 to C2, (the lower oil outlet one-way valve is opened and the oil inlet one-way valve is closed under the action of positive pressure force) to make the hydraulic oil (or other fluid) in the lower compression cavity 9 obtain pressure, oil is discharged from the oil outlet one-way valve and supplied to the hydraulic actuator, meanwhile, the plunger of the upper compression cavity 9 moves from D1 to the position D2, (under the action of negative pressure force) the upper oil inlet one-way valve is opened and the oil outlet one-way valve is closed, so that the hydraulic oil (or other fluid) enters the upper compression cavity 9 from the upper plunger end one-way oil inlet valve, a photoelectric sensor A1 and a photoelectric sensor B1 are arranged at the stopping point of the movement of the piston suction plate 3 made of lower silicon steel, when the lower photoelectric sensor B1 is triggered by the piston suction plate 3 made of lower silicon steel, simultaneously, a signal is given to the electromagnetic relay, the power supply to the lower end electromagnet coil B is stopped, the power supply to the upper end electromagnet coil A is simultaneously carried out, the upper end electromagnet A is electrified to generate electromagnetic force, the piston suction plate 3 is absorbed, the suction plate 302 of the piston suction plate 3 is positioned at the E2 position of the electromagnet coil A, the upper end electromagnet coil A is conducted, the S pole and the N pole form closed electromagnetic suction force, the electromagnetic force pulls the piston suction plate 3 from the upper end E2 position to the E1 position, so that the piston of the upper end plunger cavity moves from the D2 position to the D1 position, under the action of positive pressure, the upper end oil outlet check valve is opened, the oil inlet check valve is closed, the hydraulic oil (or other liquid) in the upper end compression cavity 9 is pressurized, the hydraulic oil is discharged from the oil outlet check valve and is supplied to the hydraulic actuator, and the piston of the lower end compression cavity 9 moves from the C2 to the C1 under the action of, the lower end oil inlet one-way valve is opened, the oil outlet one-way valve sucking hydraulic oil (or other fluids) is closed, when the piston suction plate 3 triggers the photoelectric sensor A1, the photoelectric sensor A1 gives a signal to the electromagnetic relay, the power supply to the electromagnet coil A is stopped, and meanwhile, the power supply is provided for the lower end electromagnet coil 5, so that continuous circulation is realized, the current and voltage of the electromagnet coils A and B5 are adjusted, the flow and pressure of the hydraulic oil are adjusted, and the function of the hydraulic pump is realized.

Example 2:

on the basis of the embodiment 1, another technical scheme is described as follows:

as shown in fig. 6-10, the preferred embodiment is that the lower magnet chuck 2 includes a chuck box, two first non-magnetic conductive plates 8 are disposed in the chuck box, the two first non-magnetic conductive plates 8 divide the chuck box into an upper placing cavity and a lower placing cavity, an electromagnet coil 5 is disposed in the upper placing cavity, and a permanent magnet 16 is disposed in the lower placing cavity; the compression chamber 9 is provided at both outer walls of the suction cup cassette.

Further, the attraction plate 302 is of a plate structure, the two side edges of the attraction plate 302 are provided with the pistons 301, the two sides of the upper side wall of the lower magnet sucker 2 are provided with the chute openings, the two sides of the lower side wall of the upper magnet sucker 1 are provided with the chute openings, and the attraction plate 302 is used for moving up and down at the chute openings. Except that the second non-magnetic conductive plate 12 is made of a non-magnetic conductive material, the other parts of the disk sucking box are formed by welding the soft magnetic plate 11, and the soft magnetic plate 11 and the non-magnetic conductive plate 12 are fixedly welded.

Further, the compression cavity 9 is fixed with the sucker box through a second non-magnetic conductive plate 12; the piston 301 is connected with the suction plate 302 through a third non-magnetic conductive plate 10; the upper edge of the lower magnet sucker 2 is of a sawtooth structure, the lower edge of the upper magnet sucker 1 is of a sawtooth structure, and the sawtooth structure of the lower magnet sucker 2 is meshed with the sawtooth structure of the upper magnet sucker 1. The third non-magnetic conductive plate 10 and the suction plate 302 are fixed by welding.

The working principle is as follows:

the bottom of the sucker box is provided with a neodymium iron boron magnet, namely a permanent magnet, the magnetic pole of which is fixed, as shown in figure 10, the magnetic pole is left N right S, when the lower end electromagnet coil is supplied with forward current, the left end is N right S, when the electromagnet coil is electrified, the polarity of the electromagnet coil is the same as that of the neodymium iron boron magnet, magnetic lines of force are drawn from the neodymium iron boron magnet through the electromagnet coil N, the magnetic conducting surface of the attraction box, the attraction plate and the attraction box magnetic conducting surface and then return to the S pole of the neodymium iron boron magnet and the electromagnet coil, so that the attraction plate and the electromagnet coil are attracted together towards the lower end, the magnetic pole of the upper neodymium iron boron magnet is left N right S, the electromagnet coil at the upper end is supplied with reverse current, the polarity of the electromagnet coil is left S right N, and under the action of the sucker box, the magnetic lines of force of the electromagnet coil and the neodymium iron boron magnet directly, at the moment, almost no magnetic line of force passes through the working surface of the suction plate at the upper end of the suction plate box, so that electromagnetic attraction is not generated on the suction plate, the suction plate moves towards the lower end of the suction box, when the triggering point of the photoelectric sensor is reached, the photoelectric sensor gives a signal to the electromagnetic relay, the electromagnetic relay supplies reverse current to the electromagnet coil at the lower end and supplies forward current to the electromagnet at the upper end, the suction plate moves from the lower dead point of the suction plate box to the upper dead point, the current direction is continuously changed, the suction plate in the suction plate box reciprocates up and down, the piston is driven to reciprocate up and down, and the function of the hydraulic pump is realized by continuously sucking oil and discharging oil by combining the oil inlet check valve 14 and the oil outlet.

Example 3:

on the basis of the embodiment 1 and the embodiment 2, another technical scheme is introduced as follows:

as shown in fig. 11-18, the preferred embodiment includes a lower magnet chuck 2 including a chuck box, two permanent magnets 16 disposed in the chuck box, two fixed magnetic conduction frames 13 disposed on the upper surface of the chuck box, an electromagnet installation gap 17 disposed between the two fixed magnetic conduction frames 13, and the electromagnet installation gap 17 for installing the electromagnet coil 5; the compression cavity 9 is located on both sides of the suction cup box, the suction plate 302 is of a plate structure, the two side edges of the suction plate 302 are both provided with pistons 301, the upper surface and the lower surface of the suction plate 302 are both provided with movable magnetic conduction frames, and the movable magnetic conduction frames and the fixed magnetic conduction frames are mutually inserted. In this embodiment, the principle of driving the piston suction plate 3 is the same as that in embodiment 2, but differs therefrom in that: the fixed magnetic conduction frame 13 is matched with the movable magnetic conduction frame in the direction, so that the magnetic conduction effect is better, and the movement is more stable.

The working principle of the embodiment is as follows:

the reversibility of the magnetic pole direction is realized by applying different electrifying current directions of the electromagnet coils, the magnetic circuit of the neodymium iron boron magnet is controlled to be in a magnetizing or demagnetizing state, the piston attraction plate is driven to reciprocate up and down, the compression and the suction of hydraulic oil are realized, and the function of the hydraulic pump is realized by circulating reciprocation. The fixed magnetic conduction frame 13 extends the polarity of the neodymium iron boron magnet to create a space for installing the electromagnet coil. As shown in fig. 18 and 12, when the lower end solenoid coil supplies a forward current, the magnetic poles are left N and right S, so that the magnetic poles of the fixed magnetic conduction frame 13 at the lower end are left N and right S, and the fixed magnetic conduction frame 13 attracts the piston attraction plate 3 to move downward, so as to drive the piston of the piston attraction plate 3 to compress the hydraulic oil in the compression cavity 9 downward.

As shown in fig. 19, the present embodiment includes a non-magnetic material for the upper magnet chuck 1 and the lower magnet chuck 2, a fixing frame (non-magnetic material), four ndfeb magnets, two electromagnet coils, a fixing magnetic frame (fixed on the adjacent ndfeb magnets, a attraction plate 302, a photoelectric sensor a and a photoelectric sensor B, an electromagnetic relay, a plurality of check valves, and a photoelectric trigger device.

The magnetizing and demagnetizing of magnetic force are realized by using magnetic circuit control, the magnetic attraction plate 302 is used to make the magnetic force have moving attraction capacity, in the upper magnet sucker 1 and the lower magnet sucker 2, the left and right two NdFeB magnets are opposite left and right with different poles, the middle is separated by non-magnetic material and copper plating, the electromagnet coil is arranged in the middle, the magnetic pole direction is left N right S or left S right N, and the fixed magnetic conduction frame 13 extends the magnetic line of force of the NdFeB magnets, such as the outer part of the left NdFeB magnet is N pole, and the outer part of the right NdFeB magnet is S pole, the current direction of the middle electromagnet coil is controlled, the magnetic poles at the left and right ends, left N right S or left S right N are controlled, when the NdFeB magnets externally present left N right S, the fixed magnetic conduction frame (is overlapped and staggered with the derivative section of the middle attraction plate 302, if the middle electromagnet also presents left N right, a magnetic loop holding torque is formed through the main body of the attraction plate 302, so that the attraction plate 302 moves towards the magnetic loop, if the current direction of the lower electromagnet coil is changed, power is supplied reversely, the left side S and the right side N of the lower electromagnet coil are provided, the neodymium iron boron magnet is provided with the left side N and the right side S, so that a demagnetization loop is formed through the fixed magnetic conduction frame, the magnetic force is not displayed outwards, when the upper magnet sucker 1 and the lower magnet sucker 2 are aligned, one electromagnet coil is provided with forward current, the other electromagnet coil is provided with reverse current, the current directions of the upper electromagnet coil and the lower electromagnet coil are interchanged in a staggered mode, one electromagnet coil is provided with the left side N and the right side S, and the other.

Thus, the attraction plate 302 moves to one side with magnetic force, and after the current direction of the two electromagnet coils is changed, the attraction plate 302 moves to the other side, when the photoelectric sensor B triggers the B1 trigger point, the photoelectric sensor B transmits an electric signal to the electromagnetic relay, the electromagnetic relay gives a reverse current to the electromagnet coil at the upper end, so that the magnetic force of the neodymium iron boron magnet at the upper part realizes demagnetization with the electromagnet coil at the upper end through the fixed magnetic conduction frame, the magnetic force is not displayed outwards, the electromagnetic relay gives a forward current to the electromagnet coil at the lower end, the neodymium iron boron magnet at the bottom part forms a magnetizing loop with the electromagnet coil at the lower end through the fixed magnetic conduction frame and the attraction plate 302, the attraction plate 302 moves to the fixed magnetic conduction frame 13 and drives the piston extending along the outer edge of the attraction plate 302 to compress the lower part of the compression cavity 9, and the oil outlet one-way valve at the lower part, the hydraulic oil (or other fluid) is extruded, the oil inlet check valve is closed, the compression cavity 9 of the upper magnet sucker 1 moves downwards due to the integral upper piston to form negative pressure acting force, the upper oil inlet check valve is opened, the hydraulic oil (or other fluid) is sucked and the oil outlet check valve is closed, when A1 point touches the light-emitting sensor A, the photoelectric sensor A gives an electric signal to the electromagnetic relay, the current directions of the upper and lower electromagnet coils are staggered and exchanged, the electromagnetic relay gives reverse current to the electromagnet at the lower end, the electromagnet at the upper end makes forward current, the electromagnet at the lower end and the neodymium iron boron magnet at the lower end form a demagnetization loop, no magnetic force is displayed outwards, the electromagnet coil at the upper end and the neodymium iron boron magnet at the upper end form a magnetizing magnetic circuit through the fixed magnetic conduction frame and the attraction plate 302 in staggered contact, so that the attraction plate 302 moves to the upper magnetic conduction frame 13 and drives the upper, the oil outlet one-way valve is opened to extrude hydraulic oil (or other fluids) when the oil inlet one-way valve is closed, the outer edge of the suction plate 302 synchronously moves upwards along the lower piston to enable the compression cavity of the lower piston to form negative pressure, the oil inlet one-way valve is opened, the oil outlet one-way valve sucking the hydraulic oil (or other fluids) is closed, and when the oil outlet one-way valve reaches the top dead center of the suction plate 302, the photoelectric trigger point B1 triggers the photoelectric sensor B, the photoelectric sensor B gives an electric signal to the electromagnetic relay, the circulation is continuous, the voltage and the current of the electromagnet coils at the upper end and the lower end are controlled, the reciprocating speed of the suction plate 302 is controlled, the circulation is repeated, and the function of the hydraulic pump is realized.

In a preferred embodiment, the method for using the extended bridge type electromagnetic hydraulic pump includes the following steps:

s1: the whole device is fixedly installed, and the suction plate 302 can move up and down in the annular groove 201; and the side wall of the suction plate 302 is ensured to be always in a contact state with the inner wall of the annular groove 201;

s2: starting an electromagnet coil 5 in the upper magnet sucker 1 to enable the piston sucker plate 3 to move upwards;

s3: when the piston attraction plate 3 moves upwards to the maximum stroke, the electromagnet coil 5 in the upper magnet sucker 1 is powered off or reverse current is switched on, and meanwhile, the electromagnet coil 5 in the lower magnet sucker 2 is powered on, so that the piston attraction plate 3 moves downwards;

s4: the operations of steps S2 and S3 are repeated to reciprocate the piston suction plate 3, thereby causing the piston 301 to continuously perform work on the medium in the compression chamber 9.

In steps S2 and S3, the position of the attraction plate 302 can be detected by the photosensor, which has a relatively good diamagnetism and is suitable for the design of the present embodiment.

Claims (10)

1. The utility model provides an extend bridge connection formula electromagnetism hydraulic pump, includes the magnet sucking disc, the magnet sucking disc includes magnet sucking disc (1) and lower magnet sucking disc (2), its characterized in that: a piston suction plate (3) is movably arranged between the upper magnet suction disc (1) and the lower magnet suction disc (2), electromagnet coils (5) are arranged in the upper magnet suction disc (1) and the lower magnet suction disc (2), and the electromagnet coils (5) are used for driving the piston suction plate (3) to reciprocate; the piston suction plate (3) is used for being matched with the compression cavity (9), and the compression cavity (9) is provided with a one-way valve type oil hole (7).

2. The extended bridge electromagnetic hydraulic pump of claim 1, wherein: the upper magnet sucker (1) and the lower magnet sucker (2) are fixed through a fixing frame (4).

3. The extended bridge electromagnetic hydraulic pump of claim 1, wherein: go up magnet sucking disc (1) and magnet sucking disc (2) lateral wall down and be equipped with photoelectric sensor mounting hole (6), photoelectric sensor mounting hole (6) department is used for installing photoelectric sensor.

4. The extended bridge electromagnetic hydraulic pump of claim 3, wherein: the one-way valve type oil hole (7) comprises a one-way valve type oil inlet hole and a one-way valve type oil outlet hole, the one-way valve type oil inlet hole is used for installing an oil inlet one-way valve (14), and the one-way valve type oil outlet hole is used for installing an oil outlet one-way valve (15); the piston suction plate (3) comprises a piston (301) and a suction plate (302), the piston (301) is used for being matched with the compression cavity (9), and the compression cavity (9) is arranged inside the magnet sucker or outside the magnet sucker.

5. The extended bridge electromagnetic hydraulic pump of claim 4, wherein: the lower magnet sucker (2) comprises a sucker seat, an annular groove (201) is formed in the sucker seat, an electromagnet coil (5) is arranged at the bottom of the annular groove (201), and a compression cavity (9) is formed in the middle of the sucker seat; the suction plate (302) is of an annular structure, the suction plate (302) is used for being inserted into the annular groove (201) and arranged in the annular groove, and the piston (301) is used for being inserted into the compression cavity (9) and arranged in the annular groove; the upper magnet sucker (1) and the lower magnet sucker (2) have the same structure.

6. The extended bridge electromagnetic hydraulic pump of claim 4, wherein: the lower magnet sucker (2) comprises a sucker box, two first non-magnetic plates (8) are arranged in the sucker box, the sucker box is divided into an upper placing cavity and a lower placing cavity by the two first non-magnetic plates (8), an electromagnet coil (5) is arranged in the upper placing cavity, and a permanent magnet (16) is arranged in the lower placing cavity; compression chambers (9) are provided at both outer walls of the suction cup housing.

7. The extended bridge electromagnetic hydraulic pump of claim 6, wherein: the magnetic suction device is characterized in that the attraction plate (302) is of a plate type structure, the edges of two sides of the attraction plate (302) are respectively provided with a piston (301), sliding groove openings are formed in two sides of the side wall of the upper portion of the lower magnet sucker (2), sliding groove openings are formed in two sides of the side wall of the lower portion of the upper magnet sucker (1), and the attraction plate (302) is used for moving up and down at the sliding groove openings.

8. The extended bridge electromagnetic hydraulic pump of claim 7, wherein: the compression cavity (9) is fixed with the sucker box through a second non-magnetic conductive plate (12); the piston (301) is connected with the suction plate (302) through a third non-magnetic conductive plate (10); the upper edge of the lower magnet sucker (2) is of a sawtooth structure, the lower edge of the upper magnet sucker (1) is of a sawtooth structure, and the sawtooth structure of the lower magnet sucker (2) is meshed with the sawtooth structure of the upper magnet sucker (1).

9. The extended bridge electromagnetic hydraulic pump of claim 4, wherein: the lower magnet sucker (2) comprises a sucker box, two permanent magnets (16) are arranged in the sucker box, two fixed magnetic conduction frames (13) are arranged on the upper surface of the sucker box, an electromagnet installation gap (17) is arranged between the two fixed magnetic conduction frames (13), and the electromagnet installation gap (17) is used for installing an electromagnet coil (5); the compression cavity (9) is positioned on two sides of the suction cup box, the suction plate (302) is of a plate structure, the edges of two sides of the suction plate (302) are respectively provided with a piston (301), the upper surface and the lower surface of the suction plate (302) are respectively provided with a movable magnetic conduction frame, and the movable magnetic conduction frames and the fixed magnetic conduction frames are mutually inserted and arranged.

10. Use of an extended bridge electromagnetic hydraulic pump according to any of claims 1-9, characterized by the steps of:

s1: the whole device is fixedly installed, the suction plate (302) can move up and down in the annular groove (201), and the side wall of the suction plate (302) is always in a contact state with the inner wall of the annular groove (201);

s2: opening an electromagnet coil (5) in the upper magnet sucker (1) to enable the piston sucker plate (3) to move upwards;

s3: when the piston attraction plate (3) moves upwards to the maximum stroke, the electromagnet coil (5) in the upper magnet sucker (1) is powered off or reverse current is switched on, and meanwhile, the electromagnet coil (5) in the lower magnet sucker (2) is powered on, so that the piston attraction plate (3) moves downwards;

s4: and repeating the actions of the steps S2 and S3 to make the piston suction plate (3) reciprocate, so that the piston (301) continuously does work on the medium in the compression cavity (9).

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