CN118793611A - An oil pump with a double rotor structure - Google Patents

Abstract

The invention discloses an oil pump with a double-rotor structure, and particularly relates to the technical field of oil pumps, which comprises a pump body and an oil cavity arranged in the pump body, wherein a deposition cavity is formed between a low position of a diversion valve symmetrically and fixedly arranged in the oil cavity and the inner wall of the oil cavity, an oil passage is formed between the high positions of the two diversion valves, an oil inlet is arranged at the top of the pump body, a shielding plate for enabling the oil to flow into the deposition cavity is fixedly arranged between the oil inlet and the oil passage in the oil cavity, and a slag suction unit is movably arranged in the deposition cavity. According to the oil pump with the double-rotor structure, the deposition cavity is positioned at a low position relative to the oil passing channel so that part of impurities are deposited in the deposition cavity, so that damages to the rotor caused by the flowing of the impurities to the rotor during working are reduced through the deposition of the impurities, and the plugging rod is switched between four stations so as to achieve the effects of draining and cleaning the impurities deposited in the deposition cavity, so that the oil pump is convenient to clean in time.

Description

An oil pump with a double rotor structure

Technical Field

The invention relates to the technical field of oil pumps, and in particular to an oil pump with a dual-rotor structure.

Background Art

Rotor oil pump is a kind of pump that uses the rotation of the rotor to suck and transport liquid. It generates pressure inside the pump body through the rotation of the rotor, thereby transporting the liquid. Rotor oil pumps are widely used in industries such as petroleum, chemical, machinery and food, and are suitable for transporting oils and other fluids with high viscosity.

According to patent announcement number CN207554141U, publication (announcement) date: 2018-06-29 discloses a two-way adjustable oil supply oil pump, including a shell, an inner rotor, and an oil inlet pipe and an oil outlet pipe, wherein an oil inlet guide pipe and an oil outlet guide pipe are respectively connected between the oil inlet pipe and the oil outlet pipe, wherein the ports where the oil inlet guide pipe is connected to the oil inlet pipe and the oil outlet pipe are respectively connected to a first opening and closing valve, the ports where the oil outlet guide pipe is connected to the oil inlet pipe and the oil outlet pipe are respectively connected to a second opening and closing valve, and the oil inlet pipe and the oil outlet pipe are respectively connected to a third opening and closing valve, and the third opening and closing valve separates the ports where the oil inlet guide pipe and the oil outlet guide pipe are connected to the oil inlet pipe and the oil outlet pipe.

In the prior art including the above-mentioned patent, common oil pump inlets and outlets mostly adopt a pipeline design, so the oil reaches the rotor directly when flowing in the pipeline. For some pumped oils, impurities or sediments may cause a certain blockage in the pump body and affect the use of the oil pump. The oil inlet directly connected to the rotor cannot play a sedimentation effect on the impurities due to the rapid flow of liquid. Therefore, the impurities will flow to the rotor, generate friction with the impurities during the rotation of the rotor, and cause a certain degree of wear on the rotor. Long-term use will seriously affect the service life of the rotor.

Summary of the invention

The purpose of the present invention is to provide an oil pump with a dual-rotor structure to solve the above-mentioned technical problems.

In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an oil pump with a dual-rotor structure, comprising a pump body and an oil cavity opened therein, a sedimentation cavity is formed between the lower position of the guide flap symmetrically fixedly installed in the oil cavity and the inner wall of the oil cavity, and an oil passage is formed between the two upper positions of the guide flaps, an oil inlet is opened on the top of the pump body, and a shield plate is fixedly installed in the oil cavity between the oil inlet and the oil passage to allow the oil to flow into the sedimentation cavity, a slag suction unit is movably arranged in the sedimentation cavity, and the slag suction unit comprises:

A slag suction rod, which slides symmetrically in the pump body along the vertical direction;

The blocking rod is symmetrically fixedly installed in the pump body, and a one-way valve is fixedly installed on the blocking rod. The blocking rod is assembled to switch between the following four positions:

At station 1, the slag suction rod moves downward so that when the blocking rod is inserted into the bottom end of the drainage channel, the one-way valve is opened and the top end of the drainage channel is closed;

At the second station, the slag suction rod is moved upward and the blocking rod is located in the drainage channel, and the one-way valve is closed, so that the top of the drainage channel remains closed;

Station 3: the slag suction rod is moved upward so that the top of the drainage channel is located in the deposition chamber and is open, the blocking rod is located in the drainage channel, and the one-way valve is closed;

At station four, the slag suction rod moves upward to separate the blocking rod from the bottom end of the drainage channel.

Preferably, it comprises a threaded column fixedly mounted on the bottom of the pump body and a guide ring member threadably arranged on the outer wall of the threaded column, and the insertion rods arranged on the two slag suction rods are movably arranged in annular grooves opened on the outer wall of the guide ring member to move synchronously with the guide ring member.

Preferably, a side convex portion is fixedly installed on the top of the slag suction rod, and the top of the drainage channel is arranged on the outer wall on one side of the side convex portion. A sealing airbag is fixedly installed on the outer wall of the guide flap to fit onto the side convex portion to seal the top of the drainage channel when the sealing rod is in station one and station two.

Preferably, rubber pads are symmetrically arranged in the oil cavity, and a liquid outlet is formed between the rubber pad and the outer wall of a block fixedly installed in the cavity. The two liquid outlets and the two sedimentation cavities respectively surround the rotor cavity formed between the block and the two guide flaps.

Preferably, an oil outlet connected to two liquid outlet channels is opened at the bottom of the pump body, and a flap is symmetrically hingedly arranged in the oil cavity. The flap is movably arranged on one side of the rubber pad, and the flap flips and moves the rubber pad close to the block to narrow the liquid outlet channel.

Preferably, adjustment plates are symmetrically slidably provided on the inner walls on opposite sides of the oil outlet to maintain synchronous movement toward or in opposite directions.

Preferably, a rotating block is symmetrically rotatably arranged in the oil cavity, and a protrusion arranged on the rotating block rotates with the rotating block to squeeze the adjustment plate to move, and a tension spring arranged on the adjustment plate deforms and stores force when the two adjustment plates approach each other.

Preferably, the outer walls of the two adjacent adjustment plates are fixedly mounted on the two rubber pads respectively, and the raised portions on the two rotating blocks respectively push the two adjustment plates closer to each other so that the rubber pads are tensioned by deformation.

Preferably, an auxiliary arm plate is fixedly mounted on the rotating block, and a protruding rod fixedly mounted on the auxiliary arm plate is movably arranged in a guide groove opened on the flap near the first end, and the auxiliary arm plate swings with the flap to push against the rubber pad.

Preferably, the second end of the flap is located on a downward moving path of a side protrusion provided on the slag suction rod.

In the above technical scheme, an oil pump with a dual-rotor structure provided by the present invention has the following beneficial effects: the sedimentation chamber is at a low position relative to the oil passage, so when the oil accumulates in the sedimentation chamber, some impurities will be precipitated in the sedimentation chamber, thereby reducing the damage to the rotor caused by the impurities flowing to the rotor by depositing the impurities; secondly, the sealing rod is switched between four working positions to achieve the effect of draining and cleaning the impurities deposited in the sedimentation chamber, thereby facilitating timely cleaning of the oil pump.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is a schematic diagram of the overall structure of a pump body provided by an embodiment of the present invention;

FIG2 is a schematic diagram of the structure of a pump body according to an embodiment of the present invention;

FIG3 is a schematic diagram of the overall cross-sectional structure of a pump body provided by an embodiment of the present invention;

FIG4 is a schematic diagram of a partial cross-sectional structure of a pump body provided by an embodiment of the present invention;

FIG5 is a schematic diagram of a cross-sectional structure of a flap provided by an embodiment of the present invention;

FIG6 is a schematic diagram of an enlarged structure of point A in FIG3 provided by an embodiment of the present invention;

FIG7 is a schematic diagram of an enlarged structure of point B in FIG3 provided by an embodiment of the present invention;

FIG8 is a schematic diagram of an enlarged structure of point C in FIG3 provided by an embodiment of the present invention;

FIG9 is a schematic diagram of an enlarged structure of point D in FIG4 provided by an embodiment of the present invention;

FIG10 is a schematic diagram of an enlarged structure of point E in FIG5 provided in an embodiment of the present invention;

FIG. 11 is a schematic diagram of the enlarged structure of point F in FIG. 9 provided by an embodiment of the present invention.

Description of reference numerals:

1. Pump body; 2. Main rotor; 3. Suction rod; 4. Sealing airbag; 5. Flap; 6. Threaded column; 11. Oil inlet; 12. Shield; 13. Sedimentation chamber; 14. Oil passage; 15. Guide flap; 16. Stopper; 17. Rotor chamber; 18. Liquid outlet; 19. Oil outlet; 21. Main shaft; 22. Main gear; 23. Auxiliary gear; 24. Main motor; 31. Lateral convex part; 32. Drainage channel; 33, side protrusion; 34, anti-seepage rubber ring; 35, plug rod; 41, rubber pad; 51, guide groove; 52, auxiliary arm plate; 53, protruding rod; 54, rotating block; 55, raised part; 56, adjusting plate; 57, guide rod; 58, tension spring; 61, guide ring; 62, annular groove; 63, blocking rod; 64, air groove; 65, loose-leaf plate; 66, air port; 67, torsion spring.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

As shown in Fig. 1-11, an oil pump with a dual rotor structure includes a pump body 1 and an oil cavity opened therein, a sedimentation cavity 13 is formed between the lower position of the guide flap 15 symmetrically fixedly installed in the oil cavity and the inner wall of the oil cavity, and an oil passage 14 is formed between the upper positions of the two guide flaps 15, an oil inlet 11 is opened on the top of the pump body 1, and a baffle 12 is fixedly installed in the oil cavity between the oil inlet 11 and the oil passage 14 to allow the oil to flow into the sedimentation cavity 13, and a slag suction unit is movably arranged in the sedimentation cavity 13, and the slag suction unit includes:

A slag suction rod 3 symmetrically slides in the pump body 1 along the vertical direction;

The blocking rod 63 is symmetrically fixedly installed in the pump body 1, and a one-way valve is fixedly installed on the blocking rod 63. The blocking rod 63 is assembled to switch between the following four positions:

At station 1, the slag suction rod 3 moves downward so that the blocking rod 63 is inserted into the bottom end of the drainage channel 32, and the one-way valve is opened, and the top end of the drainage channel 32 is closed;

In station 2, the slag suction rod 3 moves upward and the blocking rod 63 is located in the drainage channel 32, and the one-way valve is closed, so that the top of the drainage channel 32 remains closed;

Station 3, the slag suction rod 3 moves upward so that the top of the drainage channel 32 is located in the deposition chamber 13 and is open, the blocking rod 63 is located in the drainage channel 32, and the one-way valve is closed;

At station four, the slag suction rod 3 moves upward to separate the blocking rod 63 from the bottom end of the drainage channel 32 .

Specifically, it also includes a stopper 16 fixedly installed in the pump body 1, and a rotor cavity 17 is formed between the stopper 16 and the two guide flaps 15, and the main rotors 2 coupled to each other are symmetrically rotated in the rotor cavity 17. As shown in FIG2, the main rotor 2 is axially rotated on the pump body 1 through the main shaft 21 fixedly installed thereon, and the outer walls of the main shafts 21 on the two coupled main rotors 2 are respectively fixedly installed with mutually meshing auxiliary gears 23, and the main shafts 21 on the main rotors 2 located in the two rotor cavities 17 and at the same height are respectively fixedly installed with mutually meshing main gears 22, and the output end of the main motor 24 fixedly installed in the pump body 1 is fixedly installed at the end of one of the main shafts 21 along the axis. Therefore, one of the main shafts 21 is rotated by the drive of the main motor 24, and then the two main rotors 2 in the two rotor cavities 17 are coupled and rotated under the meshing of the two main gears 22 and the meshing between the two adjacent auxiliary gears 23 to perform the operation of pumping oil.

The top end of the drainage channel 32 can be sealed by a baffle fixedly installed in the sedimentation cavity 13 in the oil cavity body. When the slag suction rod 3 moves downward, the baffle blocks and seals the top end of the drainage channel 32.

The oil enters the oil cavity along the oil inlet 11, and then the main rotor 2 in the two rotor cavities 17 rotates to form a negative pressure between the oil passages 14 to suck the oil flow. At this time, the oil at the oil inlet 11 flows into the two sedimentation cavities 13 respectively under the shielding of the baffle 12. As the oil accumulates in the sedimentation cavity 13, the oil level rises and flows into the two rotor cavities 17 along the oil passage 14. Since the sedimentation cavity 13 is at a lower position relative to the oil passage 14, when the oil accumulates in the sedimentation cavity 13, some impurities will be deposited in the sedimentation cavity 13. Thus, the impurities are deposited to reduce the damage to the main rotor 2 caused by the impurities flowing to the main rotor 2 in the rotor cavity 17. And because the sedimentation chamber 13 is located on the outside of the guide flap 15, the heat generated when the main rotor 2 rotates between the block 16 and the two guide flaps 15 will be transferred to the guide flap 15, and the oil flowing in the sedimentation chamber 13 will absorb the heat on the guide flap 15, thereby having the effect of cooling the oil pump, and because the oil in the sedimentation chamber 13 is located on the outside of the guide flap 15, when the main rotor 2 rotates in the rotor chamber 17 to cause the guide flap 15 to vibrate, the vibration generated by the guide flap 15 is absorbed by the oil in the sedimentation chamber 13.

Furthermore, when the oil pump is needed, the plugging rod 63 is located at the first station, and the slag suction rod 3 is moved downward to insert the plugging rod 63 into the bottom end of the drainage channel 32. At this time, the one-way valve is opened, and the top end of the drainage channel 32 is closed. Therefore, when the plugging rod 63 is inserted into the drainage channel 32 along the bottom end of the drainage channel 32, the air in the drainage channel 32 is discharged from the drainage channel 32 along the one-way valve because the top end of the drainage channel 32 is closed and the one-way valve is opened. At the same time, because the top end of the drainage channel 32 is closed, the oil body can be deposited in the deposition chamber 13.

Furthermore, after the pump body 1 has been used for a period of time, the main rotor 2 is stopped and the sealing rod 63 is located at station two. At this time, the slag suction rod 3 moves up and the sealing rod 63 is located in the drainage channel 32. Since the one-way valve is closed and the top of the drainage channel 32 remains closed, when the slag suction rod 3 moves up relative to the sealing rod 63, the sealing rod 63 moves into the drainage channel 32 to reduce the pressure in the drainage channel 32. Then, by making the plugging rod 63 located at the third station, the slag suction rod 3 continues to move upward relative to the plugging rod 63, and the plugging rod 63 is located in the one-way valve in the drainage channel 32 to close, the top of the drainage channel 32 is located in the deposition chamber 13 and opened due to the upward movement of the slag suction rod 3, and the pressure in the drainage channel 32 is reduced when the plugging rod 63 is in the second station, so when the plugging rod 63 is switched from the second station to the third station, the impurities deposited in the deposition chamber 13 are partially sucked into the drainage channel 32 due to the pressure reduction in the drainage channel 32, and the impurities and oil mixture are quickly sucked into the drainage channel 32 when the top of the drainage channel 32 is opened, and the effect of the rapid suction of the drainage channel 32 is used to enhance the cleaning effect of the deposited impurities in the deposition chamber 13. By making the plugging rod 63 located at the fourth station, the slag suction rod 3 continues to move upward to make the plugging rod 63 separate from the bottom of the drainage channel 32. At this time, the top and bottom ends of the drainage channel 32 are opened at the same time, and the remaining impurities and oil mixture deposited in the sedimentation chamber 13 flow out of the oil chamber along the opened drainage channel 32. This facilitates the cleaning and discharge of impurities deposited in the sedimentation chamber 13.

Furthermore, the one-way valve member includes a hinged plate 65, an air groove 64 is provided on the blocking rod 63, and an air port 66 connected to the air groove 64 is provided at the top of the blocking rod 63, the hinged plate 65 is hingedly arranged in the air groove 64, and a torsion spring member 67 is sleeved on the hinge shaft of the hinged plate 65, and the two ends of the torsion spring member 67 are respectively fixedly installed on the hinged plate 65 and the blocking rod 63, and in the default state, the torsion spring member 67 drives the hinged plate 65 to flip up to block the air port 66. Therefore, when the blocking rod 63 is located at the first station, the slag suction rod 3 moves downward to make the blocking rod 63 plugged into the bottom end of the drainage channel 32, and the top end of the drainage channel 32 is closed, and the gas in the drainage channel 32 pushes the hinged plate 65 to discharge the drainage channel 32 along the air groove 64, and the one-way valve member is in an open state.

Furthermore, when the blocking rod 63 is in station two and station three, because the slag suction rod 3 moves upward relative to the blocking rod 63, and the blocking rod 63 is located in the drainage channel 32, when the torsion spring member 67 drives the hinged plate 65 to flip up to block the air port 66, the external air cannot enter the drainage channel 32 along the air groove 64, and the one-way valve member is in a closed state.

The two slag suction rods 3 can be moved by pushing with electric push rods respectively; or by driving the slag suction rods 3 to move with motors in conjunction with gears and racks; or by any other method known to those skilled in the art to drive the slag suction rods 3 to move.

In the above technical solution, the sedimentation chamber 13 is at a low position relative to the oil passage 14. Therefore, when the oil accumulates in the sedimentation chamber 13, some impurities will be precipitated in the sedimentation chamber 13, thereby reducing the damage to the rotor caused by the impurities flowing to the rotor by depositing the impurities. Secondly, the sealing rod 63 is switched between the four working positions to achieve the effect of draining and cleaning the impurities deposited in the sedimentation chamber 13, thereby facilitating timely cleaning of the oil pump.

As an embodiment further provided by the present invention, it includes a threaded column 6 fixedly installed at the bottom of the pump body 1 and a guide ring member 61 threadably arranged on the outer wall of the threaded column 6, and the inserted rods 35 arranged on the two slag suction rods 3 are respectively movably arranged in the annular grooves 62 opened on the outer wall of the guide ring member 61 to move synchronously with the guide ring member 61.

Specifically, as shown in FIG9 , the outer wall of the guide ring 61 and the threaded column 6 are arranged to rotate, as shown in FIG3 , when it is necessary to drive the blocking rod 63 to be located at the first station, the guide ring 61 is rotated by the thread, and the guide ring 61 rotates and moves downwards at this time. Due to the rotation and downward movement of the guide ring 61, the insertion rod 35 moves in the annular groove 62 when the guide ring 61 rotates. At this time, the insertion rod 35 moves downward with the guide ring 61, and then the two insertion rods 35 on it are driven to move downward synchronously through the threaded rotation of the guide ring 61. At this time, the downward movement of the insertion rod 35 drives the slag suction rod 3 to move downward and the blocking rod 63 is plugged into the bottom end of the drainage channel 32. Thus, by controlling the rotation of the guide ring 61, the upward and downward movement of the two slag suction rods 3 can be synchronously controlled.

As another embodiment provided by the present invention, a side protrusion 31 is fixedly installed on the top end of the slag suction rod 3, and the top end of the drainage channel 32 is arranged on the outer wall on one side of the side protrusion 31, and a sealing air bag 4 is fixedly installed on the outer wall of the guide flap 15 to fit on the side protrusion 31 to block the top end of the drainage channel 32 when the sealing rod 63 is in station one and station two.

Specifically, as shown in FIG6 , the sealing airbag 4 is located between the slag suction rod 3 and the guide flap 15. When the blocking rod 63 is located at the first station, the slag suction rod 3 moves downward and the blocking rod 63 is inserted into the bottom end of the drainage channel 32. At the same time, due to the downward movement of the slag suction rod 3, the side convex part 31 on the slag suction rod 3 begins to squeeze the sealing airbag 4, thereby making the sealing airbag 4 more closely fit the guide flap 15. Secondly, as the slag suction rod 3 moves downward, the sealing airbag 4 is positioned to the side of the side convex part 31 and blocks the top of the drainage channel 32. The sealing airbag 4 is used to enhance the sealing effect on the top of the drainage channel 32. Secondly, the sealing airbag 4 is attached to the guide flap 15. When the main rotor 2 in the rotor cavity 17 rotates to vibrate the guide flap 15, the sealing airbag 4 can absorb part of the vibration.

When the blocking rod 63 is located at the second station, the slag suction rod 3 moves up and the blocking rod 63 is located in the drainage channel 32. Since the sealing airbag 4 is still located at one side of the top of the drainage channel 32, the top of the drainage channel 32 remains closed.

As another embodiment provided by the present invention, rubber pads 41 are symmetrically arranged in the oil cavity, and a liquid outlet 18 is formed between the rubber pad 41 and the outer wall of a block 16 fixedly installed in the cavity, and the two liquid outlets 18 and the two sedimentation cavities 13 respectively surround the rotor cavity 17 formed between the block 16 and the two guide flaps 15.

Specifically, as shown in FIG3 , the rotor chamber 17 is located between the two liquid outlets 18 and the two sedimentation chambers 13, so that one of the main shafts 21 is rotated under the drive of the main motor 24, and then the two main gears 22 are meshed and the two adjacent auxiliary gears 23 are meshed to couple the two main rotors 2 in the two rotor chambers 17 to rotate to perform the oil pumping operation. At this time, the oil enters the oil chamber along the oil inlet 11, and then the main rotors 2 in the two rotor chambers 17 rotate to form a negative pressure between the oil passages 14 to suck the oil flow. At this time, the oil located at the oil inlet 11 flows into the two sedimentation chambers 13 respectively under the shielding of the baffle 12. As the oil accumulates in the sedimentation chamber 13, the oil level rises and flows into the two rotor chambers 17 along the oil passage 14. Since the sedimentation chamber 13 is at a lower position relative to the oil passage 14, when the oil accumulates in the sedimentation chamber 13, some impurities will be deposited in the sedimentation chamber 13. Then, as the main rotor 2 rotates, the oil flows along the rotor cavity 17 from the oil passage 14 to the two liquid outlets 18 respectively, and surrounds the block 16 and the two guide flaps 15 through the two liquid outlets 18 and the two sedimentation chambers 13. Furthermore, when the main rotor 2 rotates to generate vibrations on the block 16 and the two guide flaps 15, the oil flowing in the two liquid outlets 18 and the two sedimentation chambers 13 is used to absorb the vibrations of the block 16 and the two guide flaps 15. Secondly, the flowing liquid also absorbs the heat generated by the block 16 and the two guide flaps 15.

As another embodiment provided by the present invention, an oil outlet 19 connected to two liquid outlet channels 18 is opened at the bottom of the pump body 1, and a flap 5 is symmetrically hingedly arranged in the oil chamber. The flap 5 is movably arranged on one side of the rubber pad 41, and the flap 5 flips and moves the rubber pad 41 close to the block 16 to narrow the liquid outlet channel 18.

Specifically, since different types of oils have different viscosities, the oil pressure of the oil pump outlet 19 is adjusted to adapt to different oils.

By driving the flap 5 to flip, the flap 5 moves the rubber pad 41 and deforms the rubber pad 41 to approach the block 16. At this time, the rubber pad 41 approaches the block 16 to narrow the channel of the liquid outlet 18. Due to the narrowing of the channel of the liquid outlet 18, the oil pressure of the oil pumped out to the liquid outlet 18 along the rotor cavity 17 increases, and then the oil bodies of the two liquid outlets 18 are collected at the oil outlet 19 and discharged from the pump body 1 along the oil outlet 19. By driving the flap 5 to flip, the oil pressure of the oil outlet 19 can be quickly adjusted to adapt to different types of oil.

The flap 5 may be driven to flip by a motor; it may also be driven by an electric push rod; or any other method known to those skilled in the art to drive the flap 5 to flip.

As the best embodiment provided by the present invention, the inner walls on both sides of the oil outlet 19 are symmetrically slidably provided with adjustment plates 56 for maintaining synchronous movement toward or in opposite directions.

Specifically, by making the two adjustment plates 56 move at the oil outlet 19, and then driving the two adjustment plates 56 to keep moving toward each other so that the two adjustment plates 56 are close to each other, the distance between the two adjustment plates 56 is shortened, so that the channel of the oil flowing between the two adjustment plates 56 is narrowed, thereby increasing the oil pressure flowing out of the oil outlet 19. Similarly, by driving the two adjustment plates 56 to move in the opposite direction so that the distance between the two adjustment plates 56 is widened, the oil pressure flowing out of the oil outlet 19 is reduced.

The rubber pad 41 is pushed up in cooperation with the flap 5 to narrow the outlet channel 18 so that the oil pressure of the oil flowing from the outlet channel 18 and the oil out of the oil outlet 19 can be increased or decreased simultaneously, thereby improving the stability of the oil flow.

The two adjustment plates 56 can be driven to keep moving toward or in opposite directions synchronously by means of electric push rods, or by means of a motor in conjunction with gears or racks, or by any other means known to those skilled in the art to drive the two adjustment plates 56 to keep moving toward or in opposite directions synchronously.

As another embodiment provided by the present invention, a rotating block 54 is symmetrically rotatably arranged in the oil chamber, and the protrusion 55 arranged on the rotating block 54 rotates with the rotating block 54 to squeeze the adjustment plate 56 to move, and the tension spring 58 arranged on the adjustment plate 56 deforms and stores force when the two adjustment plates 56 approach each other.

Specifically, a guide rod 57 is fixedly mounted on the outer wall of one side of the adjustment plate 56, and the guide rod 57 slides on the pump body 1, a first end of a tension spring 58 is fixedly mounted on the end of the guide rod 57, and a second end of the tension spring 58 is fixedly mounted on the pump body 1. The convex portion 55 on the swivel block 54 pushes the adjustment plate 56 by rotating the swivel block 54 toward one side of the adjustment plate 56.

Therefore, by simultaneously driving the two rotating blocks 54 in the pump body 1 to rotate toward the side of the adjusting plate 56, the two adjusting plates 56 are made to slide on the pump body 1 through the guide rod 57. At this time, the two adjusting plates 56 are close to each other to narrow the channel for the oil flowing between the two adjusting plates 56. At the same time, due to the movement of the adjusting plate 56, the tension spring 58 is pulled and force is stored.

Furthermore, when the rotating block 54 flips to the side away from the adjusting plate 56 , the tension spring 58 releases the stored force to pull the adjusting plate 56 , and the two adjusting plates 56 move away from each other.

The rotating block 54 may be driven to rotate by an electric push rod in conjunction with a rack or a gear; or by a motor; or by any other method known to those skilled in the art to drive the rotating block 54 to rotate.

As another embodiment provided by the present invention, the outer walls of the adjacent sides of the two adjustment plates 56 are respectively fixedly mounted on the two rubber pads 41, and the protrusions 55 on the two rotating blocks 54 respectively push the two adjustment plates 56 closer to each other so that the rubber pads 41 are tensioned by deformation.

Specifically, the first end of the rubber pad 41 is fixedly mounted on the pump body 1, and the second ends of the two rubber pads 41 are fixedly mounted on the outer wall of the adjacent side of the two adjustment plates 56. The outer wall of the slag suction rod 3 is fixedly mounted with an anti-seepage rubber ring 34.

Furthermore, the two rotating blocks 54 are rotated toward the side of the adjustment plate 56, so that the two adjustment plates 56 slide on the pump body 1 through the guide rod 57. At this time, the two adjustment plates 56 approach each other to narrow the passage of the oil flowing between the two adjustment plates 56. Due to the movement of the two adjustment plates 56, the rubber pad 41 gradually deforms and tightens from the arc in the default state to a straight line. At this time, due to the tightening of the rubber pad 41, the rubber pad 41 begins to approach the block 16. At this time, the rubber pad 41 approaches the block 16 to narrow the passage of the liquid outlet 18. Due to the narrowing of the passage of the liquid outlet 18 and the narrowing of the passage of the oil flowing between the two adjustment plates 56, the oil pressure of the oil flowing in the liquid outlet 18 and the oil flowing out of the oil outlet 19 is increased.

Then, by driving the rotating block 54 to flip away from the adjustment plate 56, the tension spring 58 releases the stored force to pull the adjustment plate 56, and the two adjustment plates 56 move away from each other. At the same time, because the two adjustment plates 56 are close to the rotating block 54, the rubber pad 41 recovers its deformation to move away from the block 16. At this time, the channel of the liquid outlet 18 is widened and the channel of the oil flowing between the two adjustment plates 56 is widened, thereby reducing the oil pressure of the oil flowing in the liquid outlet 18 and the oil flowing out of the oil outlet 19. By utilizing the rotation of the two rotating blocks 54, the oil pressure of the oil flowing in the liquid outlet 18 and the oil flowing out of the oil outlet 19 can be increased or reduced at the same time, thereby improving the stability of the oil flow.

The rotating block 54 may be driven to rotate by an electric push rod in conjunction with a rack or a gear; or by a motor; or by any other method known to those skilled in the art to drive the rotating block 54 to rotate.

As another embodiment further provided by the present invention, an auxiliary arm plate 52 is fixedly mounted on the rotating block 54, and a protruding rod 53 fixedly mounted on the auxiliary arm plate 52 is movably arranged in a guide groove 51 opened on the flap 5 near the first end, and the auxiliary arm plate 52 swings with the flap 5 to push against the rubber pad 41.

Specifically, as shown in Figure 10, the protruding rod 53 fixedly mounted on the auxiliary arm plate 52 moves in the guide groove 51 on the flap 5. Since the flap 5 and the auxiliary arm plate 52 are located on one side of the rubber pad 41 respectively.

Therefore, when the flap 5 turns over to push the rubber pad 41 close to the stopper 16, the protruding rod 53 moves in the guide groove 51 on the flap 5, and then the flap 5 is used to drive the auxiliary arm plate 52 to swing up close to the rubber pad 41. Due to the upward swing of the auxiliary arm plate 52, the rotating block 54 starts to rotate along its axis. Due to the rotation of the rotating block 54, the raised portion 55 on the rotating block 54 pushes the adjusting plate 56 to move, and then the two flaps 5 are controlled to swing up at the same time to drive the two auxiliary arm plates 52 to swing up at the same time, so that the two rotating blocks 54 are The raised parts 55 on the 4 push the adjustment plates 56 to move at the same time. At this time, the two adjustment plates 56 approach each other to narrow the passage of the oil flowing between the two adjustment plates 56. The tension spring 58 deforms and accumulates force. Due to the movement of the two adjustment plates 56, the rubber pad 41 gradually deforms and tightens from the arc in the default state to a straight line. At this time, due to the tightening of the rubber pad 41, the rubber pad 41 begins to approach the block 16. At this time, the rubber pad 41 approaches the block 16 to narrow the passage of the liquid outlet 18. In addition, due to the flipping of the flap 5 and the auxiliary arm plate 52, they push against the rubber pad 41, thereby achieving a certain supporting effect on the rubber pad 41. Thereby, the oil flowing in the liquid outlet 18 is more stable.

Furthermore, by driving the flap 5 to swing downward, the convex rod 53 moves again in the guide groove 51 on the flap 5, thereby moving the flap 5 and the auxiliary arm plate 52 away from the rubber pad 41, and at the same time, the tension spring 58 releases the stored force to pull the adjustment plate 56, and at this time, the two adjustment plates 56 move away from each other. At the same time, because the two adjustment plates 56 are close to the rotating block 54, the rubber pad 41 recovers its deformation to move away from the stopper 16, and at this time, the channel of the liquid outlet 18 is widened and the channel of the oil flowing between the two adjustment plates 56 is widened.

The flap 5 may be driven to flip by a motor; it may also be driven by an electric push rod; or any other method known to those skilled in the art to drive the flap 5 to flip.

As a further optimal embodiment provided by the present invention, the second end of the flap 5 is located on the downward moving path of the side protrusion 33 provided on the slag suction rod 3 .

Specifically, when the oil pump is needed, the plugging rod 63 is located at the first station, and the guide ring 61 is rotated and moved downward by the thread. Due to the rotation and downward movement of the guide ring 61, the plugging rod 35 moves in the annular groove 62 when the guide ring 61 rotates. At this time, the plugging rod 35 moves downward with the guide ring 61, and then the two plugging rods 35 on the guide ring 61 are driven to move downward synchronously by the thread rotation of the guide ring 61. At this time, the downward movement of the guide ring 61 drives the two slag suction rods 3 to move downward at the same time and the plugging rod 63 is plugged into the bottom end of the drainage channel 32. At this time, due to the downward movement of the slag suction rod 3, the side convex part 31 on the slag suction rod 3 begins to squeeze the sealing airbag 4, so that the sealing airbag 4 is more closely attached to the guide flap 15. Secondly, as the slag suction rod 3 moves downward, the sealing airbag 4 is positioned to the side of the side convex part 31 and blocks the top of the drainage channel 32. At this time, the side protrusion 33 on the slag suction rod 3 and the second end of the flap 5 maintain a certain distance.

Furthermore, by continuing to rotate the guide ring 61 to drive the two slag suction rods 3 to continue to move downward, the side protrusions 33 on the slag suction rods 3 begin to approach the flap 5 and begin to push the second end of the flap 5. When the side protrusions 33 on the slag suction rods 3 push the flap 5 to flip, the flap 5 flips up to push the rubber pad 41 close to the stopper 16. At this time, the protruding rods 53 move in the guide grooves 51 on the flap 5, and then the flap 5 is used to drive the auxiliary arm plate 52 to swing up and approach the rubber pad 41. Due to the upward swing of the auxiliary arm plate 52, the rotating block 54 begins to rotate along its axis. Due to the rotation of the rotating block 54, the protruding parts 55 on the rotating block 54 squeeze and push the adjusting plate 56 to move. Then, when the two slag suction rods 3 move downward synchronously to drive the two flaps 5 to swing up at the same time, the two auxiliary arm plates 52 It also swings upward at the same time, so that the protrusions 55 on the two rotating blocks 54 push the adjustment plates 56 to move at the same time. At this time, the two adjustment plates 56 approach each other to narrow the channel of the oil flowing between the two adjustment plates 56. The tension spring 58 deforms and accumulates force. Due to the movement of the two adjustment plates 56, the rubber pad 41 gradually deforms and tightens from the arc in the default state to a straight line. At this time, due to the tightening of the rubber pad 41, the rubber pad 41 begins to approach the block 16. At this time, the rubber pad 41 approaches the block 16 to narrow the channel of the liquid outlet 18. The narrowing of the channel of the liquid outlet 18 and the narrowing of the channel of the oil flowing between the two adjustment plates 56 increase the oil pressure of the oil flowing in the liquid outlet 18 and the oil flowing out of the oil outlet 19.

Furthermore, by moving the side protrusion 33 upward, the tension spring 58 releases the stored force to pull the adjustment plate 56, and the two adjustment plates 56 move away from each other. At the same time, because the two adjustment plates 56 are close to the rotating block 54, the two adjustment plates 56 push the rotating block 54 to flip away from the adjustment plate 56, and the auxiliary arm plate 52 swings down under the flip of the rotating block 54. At the same time, the protruding rod 53 moves in the guide groove 51 on the flap 5 to drive the flap 5 to swing down. Because the two adjustment plates 56 are close to the rotating block 54, the rubber pad 41 recovers its deformation to move away from the block 16. At this time, the channel of the liquid outlet 18 is widened and the channel of the oil body flowing between the two adjustment plates 56 is widened. In this way, the oil pressure of the oil body flowing in the liquid outlet 18 and the oil body flowing out of the oil outlet 19 is reduced. The rotation of the two rotating blocks 54 is utilized to achieve the effect of simultaneously increasing or decreasing the oil pressure of the oil flowing through the outlet channel 18 and the oil flowing out of the oil outlet 19, thereby improving the stability of the oil flow.

The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (10)

1. An oil pump with a dual-rotor structure, characterized in that it comprises a pump body (1) and an oil cavity body opened therein, a sedimentation cavity (13) is formed between a lower position of a guide flap (15) symmetrically fixedly installed in the oil cavity and an inner wall of the oil cavity, and an oil passage (14) is formed between the upper positions of the two guide flaps (15), an oil inlet (11) is opened at the top of the pump body (1), and a baffle (12) is fixedly installed in the oil cavity between the oil inlet (11) and the oil passage (14) for allowing the oil to flow into the sedimentation cavity (13), and a slag suction unit is movably arranged in the sedimentation cavity (13), and the slag suction unit comprises: A slag suction rod (3) which slides symmetrically in the pump body (1) along a vertical direction; The blocking rod (63) is symmetrically fixedly mounted in the pump body (1), and a one-way valve is fixedly mounted on the blocking rod (63). The blocking rod (63) is configured to switch between the following four working positions: At station 1, the slag suction rod (3) moves downward so that the blocking rod (63) is inserted into the bottom end of the drainage channel (32), the one-way valve is opened, and the top end of the drainage channel (32) is closed; At the second station, the slag suction rod (3) moves upward and the blocking rod (63) is located in the drainage channel (32), and the one-way valve is closed, so that the top of the drainage channel (32) remains closed; At station three, the slag suction rod (3) is moved upward so that the top end of the drainage channel (32) is located in the deposition chamber (13) and is open, the blocking rod (63) is located in the drainage channel (32), and the one-way valve is closed; At station four, the slag suction rod (3) moves upward to separate the blocking rod (63) from the bottom end of the drainage channel (32). 2. An oil pump with a dual-rotor structure according to claim 1, characterized in that it includes a threaded column (6) fixedly installed at the bottom of the pump body (1) and a guide ring (61) threadably arranged on the outer wall of the threaded column (6), and the inserted rods (35) arranged on the two slag suction rods (3) are respectively movably arranged in the annular grooves (62) opened on the outer wall of the guide ring (61) to move synchronously with the guide ring (61). 3. An oil pump with a dual-rotor structure according to claim 1, characterized in that a side convex portion (31) is fixedly installed at the top end of the slag suction rod (3), and the top end of the drainage channel (32) is arranged on the outer wall of one side of the side convex portion (31), and a sealing airbag (4) is fixedly installed on the outer wall of the guide flap (15) to fit on the side convex portion (31) to block the top end of the drainage channel (32) when the sealing rod (63) is in station one and station two. 4. An oil pump with a dual-rotor structure according to claim 1, characterized in that rubber pads (41) are symmetrically arranged in the oil cavity, and a liquid outlet (18) is formed between the rubber pad (41) and the outer wall of a block (16) fixedly installed in the cavity, and the two liquid outlets (18) and the two sedimentation cavities (13) respectively embrace the rotor cavity (17) formed between the block (16) and the two guide flaps (15). 5. An oil pump with a dual-rotor structure according to claim 4, characterized in that an oil outlet (19) connected to two liquid outlet channels (18) is opened at the bottom of the pump body (1), and a flap (5) is symmetrically hingedly arranged in the oil chamber, and the flap (5) is movably arranged on one side of the rubber pad (41), and the flap (5) flips and moves the rubber pad (41) close to the block (16) to narrow the liquid outlet channel (18). 6. An oil pump with a dual-rotor structure according to claim 5, characterized in that adjustment plates (56) are symmetrically slidably provided on the inner walls on both sides of the oil outlet (19) to maintain synchronous movement toward or in the opposite direction. 7. An oil pump with a dual-rotor structure according to claim 6, characterized in that a rotating block (54) is symmetrically rotatably arranged in the oil chamber, and a protrusion (55) arranged on the rotating block (54) rotates with the rotating block (54) to squeeze the adjustment plate (56) to move, and a tension spring (58) arranged on the adjustment plate (56) is deformed and stores force when the two adjustment plates (56) are close to each other. 8. An oil pump with a dual-rotor structure according to claim 7, characterized in that the outer walls of the adjacent sides of the two adjustment plates (56) are respectively fixedly mounted on the two rubber pads (41), and when the protrusions (55) on the two rotating blocks (54) push the two adjustment plates (56) closer to each other, the rubber pads (41) are tensioned by deformation. 9. An oil pump with a dual-rotor structure according to claim 8, characterized in that an auxiliary arm plate (52) is fixedly mounted on the rotating block (54), and a protruding rod (53) fixedly mounted on the auxiliary arm plate (52) is movably arranged in a guide groove (51) opened on the flap (5) near the first end, and the auxiliary arm plate (52) swings with the flap (5) to push against the rubber pad (41). 10. An oil pump with a dual-rotor structure according to claim 9, characterized in that the second end of the flap (5) is located on a downward moving path of the side protrusion (33) provided on the slag suction rod (3).