CN110640115B - Plunger pump rotor forming process - Google Patents
Plunger pump rotor forming process Download PDFInfo
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- CN110640115B CN110640115B CN201911055928.9A CN201911055928A CN110640115B CN 110640115 B CN110640115 B CN 110640115B CN 201911055928 A CN201911055928 A CN 201911055928A CN 110640115 B CN110640115 B CN 110640115B
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- 239000011159 matrix material Substances 0.000 claims description 27
- 229910000838 Al alloy Inorganic materials 0.000 claims description 20
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 17
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- 229910000881 Cu alloy Inorganic materials 0.000 claims description 9
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 239000005457 ice water Substances 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 3
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- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims 1
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- 230000006378 damage Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0054—Casting in, on, or around objects which form part of the product rotors, stators for electrical motors
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- B22F1/0003—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to the technical field of plunger pumps, and particularly relates to a forming process of a plunger pump rotor; the plunger pump rotor comprises a rotor, a rotary disc and a driving shaft; the rotor comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is fixedly connected to the left side of the center line of the rotating disc; the inner wall of the first rotating shaft is fixedly connected with first electromagnetic blocks which are uniformly arranged; the second rotating shaft is in rotating connection with the first rotating shaft through uniformly arranged balls; the inner wall of the second rotating shaft is fixedly connected with second electromagnetic blocks which are uniformly arranged; the outer surface of the second rotating shaft is rotatably connected with a driving shaft; the end surface of one side of the driving shaft, which is far away from the rotor, is fixedly connected with a first piston; the end surface of one side of the first piston, which is opposite to the driving shaft, is fixedly connected with a second piston through uniformly arranged springs; the plunger pump rotor provided by the invention is mainly used for solving the problems that the existing plunger pump rotor has poor self hardness, the friction coefficient of the plunger pump rotor is large in the working process, and the heat dissipation capability of the plunger pump rotor is poor.
Description
Technical Field
The invention belongs to the technical field of plunger pumps, and particularly relates to a plunger pump rotor molding process.
Background
The plunger pump is an important device of a hydraulic system, and realizes oil absorption and oil pressing by changing the volume of a sealed working cavity through the reciprocating motion of a plunger in a cylinder body. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions where high pressure, large flow and flow need to be regulated; the plunger cylinder is because radial plunger pump belongs to the higher high-efficient pump of a novel technical content ratio, along with the incessant acceleration of localization, radial plunger pump must become the important component part in plunger pump application.
The plunger pump rotor is a core part of the plunger pump, common rotor materials are steel, copper, cast iron and steel-copper bimetal, a plunger hole of the steel rotor is manufactured by hole grinding and hole lapping after heat treatment, the existing plunger pump rotor has poor hardness, the friction coefficient of the plunger pump rotor is large in the working process, and the heat dissipation capacity of the plunger pump rotor is weak.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a plunger pump rotor forming process which is mainly used for solving the problems that the existing plunger pump rotor is poor in self hardness, the friction coefficient of the plunger pump rotor is large in the working process, and the heat dissipation capacity of the plunger pump rotor is poor.
The technical scheme adopted by the invention for solving the technical problems is as follows: a plunger pump rotor molding process comprises the following steps;
s1: three-dimensional design is carried out on a plunger pump structure and a plunger pump rotor pouring system by adopting computer three-dimensional simulation design software, and after the design is finished, the plunger pump rotor is poured by using iron-aluminum alloy and cooled to room temperature in air so as to obtain a steel matrix rotor;
s2: removing burrs generated by casting the surface of the workpiece cast in the step S1 and sand grains adhered to the surface of the workpiece in the casting process, and polishing the cylindrical surface of the through hole of the steel matrix rotor;
s3: preparing a suspension from iron-aluminum alloy powder and an ethylene glycol solution, uniformly stirring the suspension, wherein the mass-volume concentration of the iron-aluminum alloy powder is 2.34-2.70g/ml, uniformly coating the prepared suspension on the cylindrical surface of the through hole of the steel matrix rotor, and then putting the steel matrix rotor into a drying box for drying;
s4: dehydrating and ball-milling the massive iron-aluminum alloy to obtain anhydrous iron-aluminum alloy powder, and filling the anhydrous iron-aluminum alloy powder into the through hole on the steel matrix rotor to be filled after the steel matrix rotor is dried;
s5: putting the steel matrix rotor filled with the anhydrous iron-aluminum alloy in the S4 into a high-temperature furnace at 1200 +/-30 ℃ for fully preheating, and smelting and casting the copper alloy in the high-temperature furnace at the same temperature to be in a completely liquid state; and then taking the steel matrix rotor and the casting copper alloy solution out of the high-temperature furnace simultaneously, pouring the smelted casting copper alloy into the fully preheated steel matrix rotor through hole, and after cooling in the air, carrying out mechanical processing and forming to obtain the plunger pump rotor.
Wherein the plunger pump rotor described in S5 includes a rotor, a turntable, and a drive shaft; the rotor comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is fixedly connected to the left side of the center line of the rotating disc; the inner wall of the first rotating shaft is fixedly connected with first electromagnetic blocks which are uniformly arranged, and the number of the first electromagnetic blocks is six; the first electromagnetic block is electrically connected with the controller through a lead; the second rotating shaft is in rotating connection with the first rotating shaft through uniformly arranged balls; the inner wall of the second rotating shaft is fixedly connected with second electromagnetic blocks which are uniformly arranged, and the number of the second electromagnetic blocks is nine; the second electromagnetic block is electrically connected with the controller through a lead; the opposite side of the second electromagnetic block and the first electromagnetic block have the same magnetism; the outer surface of the second rotating shaft is rotatably connected with a driving shaft; the end surface of one side of the driving shaft, which is far away from the rotor, is fixedly connected with a first piston; the end surface of one side of the first piston, which is opposite to the driving shaft, is fixedly connected with a second piston through uniformly arranged springs; the outer surfaces of the two pistons are connected with a cylindrical plate in a sliding manner; when the plunger pump works, after the plunger pump starts to work, because the first rotating shaft is fixedly connected to the left side position of the central line of the rotating disc, when the rotating disc drives the first rotating shaft to rotate clockwise, because the second rotating shaft is rotatably connected with the first rotating shaft through the uniformly arranged balls, and the second rotating shaft drives the driving shaft to do telescopic motion in the process that the rotating disc drives the first rotating shaft to rotate, the friction force between the first rotating shaft and the second rotating shaft can be reduced by arranging the balls in the process, the friction between the first rotating shaft and the second rotating shaft is reduced, so that the service life of the rotor is prolonged, because the same poles of the first electromagnetic block and the second electromagnetic block which are fixedly connected in the inner walls of the first rotating shaft and the second rotating shaft repel each other, in the process that the second rotating shaft drives the driving shaft to do left telescopic motion, through the repulsive force between the same poles of the electromagnets, the friction of the balls to the first rotating shaft and the second rotating shaft can be reduced no matter the driving shaft is extended or retracted, thereby alleviate the harm of rotor and improve the life of rotor, because first piston links firmly with the second piston through the spring of evenly arranging, drive the flexible in-process of first piston and second piston at the drive shaft, can reduce the frictional force of second piston to the cylinder inboard wall, thereby make the more smooth and easy slip of second piston in the cylinder inboard, the direct extension spring of drive shaft when second piston card is in the cylinder inboard, can avoid the second piston atress too big at this in-process, thereby damage the cylinder board.
Preferably, a protective cover is fixedly connected between the right end face of the first piston and the left end face of the second piston, and the protective cover is in a telescopic design; each spring is distributed in the protective cover which is uniformly arranged; the during operation, when first piston pulling spring drove the second piston and is concertina movement, the spring was in tensile or shrink state always, because every spring outside all has linked firmly scalable protection casing, when the first piston drove the second piston and is concertina movement, the telescopic movement was also being done to the safety cover simultaneously, can prevent at this in-process that the spring from resulting in the spring to collide when the shrink is too fast between the spring to take place the winding between the messenger spring, thereby influence the flexible process of second piston.
Preferably, a first long groove is formed in the inner wall of the second piston, and the first long groove is communicated with the outside; a contact is fixedly connected in the first long groove and is electrically connected with the controller through a lead; the inner surface of the cylindrical plate is fixedly connected with a control line, and the control line corresponds to the long groove; the control line is electrically connected with the controller through a lead; the contact is attached to the control line; when the electromagnetic clutch works, when the rotor drives the driving shaft to do left telescopic motion, the second piston does left reciprocating telescopic motion in the cylindrical plate, when the second piston does back and forth slide in the cylindrical plate, the contact is attached to the control line to slide back and forth in the first long groove, and when the contact is attached to the control line to slide back and forth, the turntable drives the rotor to do left rotary motion, because the stress condition when the first rotating shaft drives the driving shaft to do left telescopic motion is that the first rotating shaft rotates around the second rotating shaft, when the contact is attached to the control line to slide back and forth, the control line controls the magnetic force of the first rotating shaft and the second rotating shaft relative to the electromagnetic blocks in the positions with larger stress, because the second rotating shaft rotates clockwise when receiving pulling force, the magnetic force of the electromagnetic blocks is also sequentially enhanced clockwise when the contact slides on the control line, so that the repulsive force of the first electromagnetic block and the second electromagnetic block is increased, and the friction force of the first rotating shaft and the second rotating shaft can be reduced in the process, thereby improving the service life of the rotor.
Preferably, both sides of the rotor are fixedly connected with sealing plates, and a sliding groove is formed in the inner wall of the first piston; the sliding block is connected in the sliding groove in a sliding mode and is designed to be tightly attached to the inner wall of the sliding groove; the end face of one side, opposite to the driving shaft, of the sliding block is fixedly connected with a flexible shaft, and the flexible shaft extends out of the first piston and is fixedly connected with the second piston; the driving shaft is provided with second elongated slots which are uniformly distributed, and the number of the second elongated slots is two; cooling oil is filled in the two second long grooves, and check valves are fixedly connected in the two second long grooves; one end of each second long groove close to the first piston extends into the sliding groove and is communicated with the sliding groove; one end of each of the two second long grooves close to the rotor extends to a position between the first rotating shaft and the second rotating shaft; when the flexible shaft type cooling device works, when the second piston drives the flexible shaft to do left telescopic motion, the flexible shaft drives the sliding block to slide back and forth in the sliding groove, because the cooling oil is filled in the long groove, when the rotating shaft drives the sliding block to slide right, the cooling oil in the second long groove at the lower part can be sucked into the sliding groove, when the flexible shaft drives the sliding block to slide left, the cooling oil in the sliding groove can be pushed into the second long groove at the upper part, the cooling oil entering the second long groove at the upper part flows into a space where the balls are positioned along the second long groove, because the two sides of the rotor are fixedly connected with the sealing plates, the cooling oil can be prevented from flowing out of the rotor, when the flexible shaft drives the sliding block to slide right, the cooling oil in the second long groove at the lower part is sucked into the sliding groove again to work in a circulating mode, in the process, heat generated by the back and forth rotation of the balls can be cooled through the circulating flow of the cooling liquid, and the balls are prevented from being deformed due to overhigh temperature, meanwhile, the temperature of the first rotating shaft and the second rotating shaft can be reduced, and the normal working process of the rotor is prevented from being influenced by overhigh temperature of the rotor.
Preferably, an elastic membrane is fixedly connected in each protective cover, and the elastic membrane is designed to wrap a spring; cooling oil is filled in each elastic membrane; the inner wall of the second piston is provided with arc-shaped grooves which are uniformly distributed, and the uniformly distributed arc-shaped grooves are communicated with the uniformly distributed elastic films one by one; third long grooves which are uniformly distributed are formed in the first piston and are communicated with the sliding groove; the plurality of uniformly arranged third long grooves are communicated with the uniformly arranged elastic films one by one; when the cooling oil in the elastic film flows into the sliding chute through the third long groove, the cooling oil can flow in the elastic die in a circulating mode through the back-and-forth sliding of the sliding block, and the cooling oil can also flow into the rotor through the second long groove so as to make up the deficiency of the cooling oil.
Preferably, a liquid storage tank is arranged between the two long grooves in the inner wall of the driving shaft, and ice water is filled in the liquid storage tank; a thermometer is fixedly connected in the inner wall of the driving shaft above the liquid storage tank, and the thermometer extends into the ice water; a liquid storage cover is fixedly arranged on the outer side of the driving shaft; during operation, because the reservoir that the drive shaft inner wall was seted up is equipped with frozen water in, can reduce the temperature of drive shaft self in the in-process of drive shaft motion, it is long when improving the use of drive shaft, because be equipped with the thermometer in the drive shaft inner wall, can detect the temperature in the drive shaft at any time in the drive shaft course of working, when the temperature in the drive shaft was too high, stop work opens the stock solution lid, cool off the frozen water that updates after a period, can prevent through the detection at any time of thermometer that the drive shaft from causing the damage because of the high temperature at this in-process.
The invention has the following beneficial effects:
1. according to the invention, the protection cover and the elastic membrane are arranged, when the first piston drives the second piston to do telescopic motion, the protection cover also does telescopic motion at the same time, so that the springs can be prevented from colliding when the springs contract too fast in the process, and the springs are wound, so that the telescopic process of the second piston is influenced, the springs can generate heat in the process of frequent stretching and contraction of the springs, and the temperature of the springs can be reduced because the cooling oil is filled in the elastic membranes wrapping the springs, so that the springs are prevented from deforming due to overhigh temperature.
2. The invention can suck the cooling oil in the lower second long groove into the sliding chute when the rotating shaft drives the sliding block to slide rightwards, can push the cooling oil in the sliding chute into the upper second long groove when the flexible shaft drives the sliding block to slide leftwards, and can make the cooling oil entering the upper second long groove flow into the space where the balls are located along the second long groove.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a body view of the plunger pump rotor of the present invention;
FIG. 3 is a cross-sectional view of the plunger pump rotor of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B;
in the figure: the rotor comprises a rotor 1, a first rotating shaft 11, a second rotating shaft 12, a ball 13, a first electromagnetic block 14, a second electromagnetic block 15, a rotating disc 2, a driving shaft 3, a first piston 31, a sliding groove 32, a sliding block 33, a flexible shaft 34, a protective cover 35, an elastic membrane 36, a second piston 37, a first long groove 38, a contact 39, a control line 311, a cylindrical plate 321, a second long groove 331, a thermometer 341, a liquid storage tank 351, a liquid storage cover 361, an arc-shaped groove 371 and a third long groove 381.
Detailed Description
A process for forming a plunger pump rotor according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the forming process of the plunger pump rotor according to the present invention includes the following steps:
s1: three-dimensional design is carried out on a plunger pump structure and a plunger pump rotor pouring system by adopting computer three-dimensional simulation design software, and after the design is finished, the plunger pump rotor is poured by using iron-aluminum alloy and cooled to room temperature in air so as to obtain a steel matrix rotor;
s2: removing burrs generated by casting the surface of the workpiece cast in the step S1 and sand grains adhered to the surface of the workpiece in the casting process, and polishing the cylindrical surface of the through hole of the steel matrix rotor;
s3: preparing a suspension from iron-aluminum alloy powder and an ethylene glycol solution, uniformly stirring the suspension, wherein the mass-volume concentration of the iron-aluminum alloy powder is 2.34-2.70g/ml, uniformly coating the prepared suspension on the cylindrical surface of the through hole of the steel matrix rotor, and then putting the steel matrix rotor into a drying box for drying;
s4: dehydrating and ball-milling the massive iron-aluminum alloy to obtain anhydrous iron-aluminum alloy powder, and filling the anhydrous iron-aluminum alloy powder into the through hole on the steel matrix rotor to be filled after the steel matrix rotor is dried;
s5: putting the steel matrix rotor filled with the anhydrous iron-aluminum alloy in the S4 into a high-temperature furnace at 1200 +/-30 ℃ for fully preheating, and smelting and casting the copper alloy in the high-temperature furnace at the same temperature to be in a completely liquid state; then taking the steel matrix rotor and the casting copper alloy solution out of the high-temperature furnace at the same time, pouring the smelted casting copper alloy into the fully preheated steel matrix rotor through hole, and after cooling in the air, carrying out mechanical processing and forming to obtain the plunger pump rotor;
wherein, the plunger pump rotor described in S5 includes rotor 1, rotary disc 2 and drive shaft 3; the rotor 1 comprises a first rotating shaft 11 and a second rotating shaft 12; the first rotating shaft 11 is fixedly connected to the left side position of the central line of the rotating disc 2; the inner wall of the first rotating shaft 11 is fixedly connected with first electromagnetic blocks 14 which are uniformly arranged, and the number of the first electromagnetic blocks 14 is six; the first electromagnetic block 14 is electrically connected with a controller through a lead; the second rotating shaft 12 is rotatably connected with the first rotating shaft 11 through uniformly arranged balls 13; the inner wall of the second rotating shaft 12 is fixedly connected with second electromagnetic blocks 15 which are uniformly arranged, and the number of the second electromagnetic blocks 15 is nine; the second electromagnetic block 15 is electrically connected with the controller through a lead; the opposite side of the second electromagnetic block 15 and the first electromagnetic block 14 has the same magnetism; the outer surface of the second rotating shaft 12 is rotatably connected with a driving shaft 3; the end surface of one side of the driving shaft 3, which is far away from the rotor 1, is fixedly connected with a first piston 31; the end surface of one side of the first piston 31, which is opposite to the driving shaft 3, is fixedly connected with a second piston 37 through uniformly arranged springs; the outer surfaces of the two pistons are connected with a cylindrical plate 321 in a sliding manner; when the plunger pump works, after the plunger pump starts to work, because the first rotating shaft 11 is fixedly connected to the left side position of the central line of the rotating disc 2, when the rotating disc 2 drives the first rotating shaft 11 to rotate clockwise, because the second rotating shaft 12 is rotatably connected with the first rotating shaft 11 through the uniformly arranged balls 13, and the second rotating shaft 12 drives the driving shaft 3 to do telescopic motion in the process that the rotating disc 2 drives the first rotating shaft 11 to rotate, the friction force between the first rotating shaft 11 and the second rotating shaft 12 can be reduced by arranging the balls 13 in the process, so that the service life of the rotor 1 is prolonged by reducing the friction between the first rotating shaft 11 and the second rotating shaft 12, because the first electromagnetic block 14 and the second electromagnetic block 15 which are fixedly connected in the inner walls of the first rotating shaft 11 and the second rotating shaft 12 have the same polarity and repel each other, in the process that the second rotating shaft 12 drives the driving shaft 3 to do left telescopic motion, through the repulsive force between the same polarities of the electromagnets, and no matter the driving shaft 3 can reduce the friction between the balls 13 to the first rotating shaft 11 and the second rotating shaft 12 in the extending or contracting process Wipe, thereby alleviate the harm of rotor 1 and improve rotor 1's life, because first piston 31 links firmly with second piston 37 through the spring of evenly arranging, in the flexible in-process of drive shaft 3 drive first piston 31 and second piston 37, can reduce the frictional force of second piston 37 to cylinder board 321 inner wall, thereby make the more smooth and easy slip of second piston 37 in cylinder board 321, second piston 37 card drive shaft 3 direct extension spring when in cylinder board 321, can avoid second piston 37 atress too big in this process, thereby damage cylinder board 321.
As an embodiment of the present invention, a protection cover 35 is fixedly connected between the end surface of the right side of the first piston 31 and the end surface of the left side of the second piston 37, and the protection cover 35 is of a telescopic design; each of said springs is distributed in a protective cover 35 arranged uniformly; the during operation, when first piston 31 pulling spring drove second piston 37 and be concertina movement, the spring was in tensile or contraction state always, because every spring outside all has linked firmly scalable protection casing, when the first piston drove second piston 37 and be concertina movement, telescopic movement was also being done simultaneously to safety cover 35, can prevent at this in-process that the spring from leading to the collision between the spring when contracting too fast to take place the winding between the messenger spring, thereby influence the flexible process of second piston 37.
As an embodiment of the present invention, a first long groove 38 is formed on an inner wall of the second piston 37, and the first long groove 38 is communicated with the outside; a contact 39 is fixedly connected in the first long groove 38, and the contact 39 is electrically connected with the controller through a lead; the inner surface of the cylindrical plate 321 is fixedly connected with a control line 311, and the control line 311 corresponds to the long groove; the control line 311 is electrically connected with the controller through a conducting wire; the contact 39 and the control line 311 are mutually attached; when the electromagnetic brake is in operation, when the rotor 1 drives the driving shaft 3 to do left telescopic motion, the second piston 37 does left reciprocating telescopic motion in the cylindrical plate 321, when the second piston 37 slides back and forth in the cylindrical plate 321, the contact 39 is attached to the control line 311 to slide back and forth in the first long groove 38, and when the contact 39 is attached to the control line 311 to slide back and forth, the turntable 2 drives the rotor 1 to do left rotary motion, because the stress condition when the first rotating shaft 11 drives the driving shaft 3 to do left telescopic motion is rotating around the second rotating shaft 12, when the contact 39 is attached to the control line 311 to slide back and forth, the control line 311 controls the magnetic force of the electromagnetic blocks corresponding to the positions of the first rotating shaft 11 and the second rotating shaft 12 when the stress is large, because the second rotating shaft 12 rotates clockwise when receiving the pulling force, the magnetic force of the electromagnetic blocks is sequentially increased clockwise when the contact 39 slides on the control line 311, therefore, the repulsive force between the first magnet block 14 and the second magnet block 15 is increased, and the friction force between the first rotating shaft 11 and the second rotating shaft 12 can be reduced in the process, so that the service life of the rotor 1 is prolonged.
As an embodiment of the present invention, both sides of the rotor 1 are fixedly connected with a sealing plate, and a sliding groove 32 is formed in an inner wall of the first piston 31; a sliding block 33 is connected in the sliding groove 32 in a sliding manner, and the sliding block 33 is designed to be tightly attached to the inner wall of the sliding groove 32; the end face of one side of the sliding block 33, which is opposite to the driving shaft 3, is fixedly connected with a flexible shaft 34, and the flexible shaft 34 extends out of the first piston 31 and is fixedly connected with a second piston 37; the driving shaft 3 is provided with second long grooves 331 which are uniformly arranged, and the number of the second long grooves 331 is two; cooling oil is filled in the two second long grooves 331, and check valves are fixedly connected in the two second long grooves 331; one end of each of the two second long grooves 331 close to the first piston 31 extends into the sliding groove 32 and is communicated with the sliding groove 32; one end of each of the two second long grooves 331 close to the rotor 1 extends to between the first rotating shaft 11 and the second rotating shaft 12; when the rotor works, when the second piston 37 drives the flexible shaft 34 to do left telescopic motion, the flexible shaft 34 drives the sliding block 33 to slide back and forth in the sliding groove 32, because the cooling oil is filled in the long groove, when the rotating shaft drives the sliding block 33 to slide right, the cooling oil in the lower second long groove 331 can be sucked into the sliding groove 32, when the flexible shaft 34 drives the sliding block 33 to slide left, the cooling oil in the sliding groove 32 can be pushed into the upper second long groove 331, the cooling oil entering the upper second long groove 331 flows into the space where the balls 13 are located along the second long groove 331, because the sealing plates are fixedly connected with two sides of the rotor 1, the cooling oil can be prevented from flowing out of the rotor 1, when the flexible shaft 34 drives the sliding block 33 to slide right, the cooling oil in the lower second long groove 331 is sucked into the sliding groove 32 again to do circular work, and heat generated by the back and forth rotation of the balls 13 can be cooled through the circular flow of the cooling liquid in the process, prevent that ball 13 high temperature from producing deformation, can also reduce the temperature of first pivot 11 and second pivot 12 self simultaneously, prevent that rotor 1 high temperature from influencing the normal course of operation of rotor 1.
As an embodiment of the present invention, an elastic membrane 36 is fixedly connected in each of the protection covers 35, and the elastic membrane 36 is designed to wrap a spring; cooling oil is filled in each elastic membrane 36; the inner wall of the second piston 37 is provided with arc-shaped grooves 371 which are uniformly distributed, and the arc-shaped grooves 371 which are uniformly distributed are communicated with the elastic membranes 36 which are uniformly distributed one by one; third long grooves 381 which are uniformly distributed are formed in the first piston 31, and the third long grooves 381 which are uniformly distributed are communicated with the sliding groove; the plurality of uniformly arranged third long grooves are communicated with the uniformly arranged elastic films one by one; in the working process, in the process of frequent stretching and contraction of the spring, the spring can generate heat, cooling oil is filled in the elastic membrane 36 wrapping the spring, the temperature of the spring can be reduced, deformation caused by overhigh temperature of the spring is prevented, the process that the spring drives the second piston 37 to stretch is difficult to realize, the elastic membrane 36 which is uniformly distributed is communicated with the arc-shaped grooves 371 which are uniformly distributed one by one, the cooling oil can flow in the arc-shaped grooves 371 which correspond to each other, the third long grooves 381 which are uniformly distributed are communicated with the sliding groove 32, when the cooling oil in the elastic membrane 36 flows into the sliding groove 32 through the third long grooves 381, the cooling oil can flow in the elastic membrane 36 in a circulating mode through back and forth sliding of the sliding block 33, and the cooling oil can flow into the rotor through the second long grooves, so that the deficiency of the cooling oil is made up.
As an embodiment of the present invention, a liquid storage tank 351 is provided between the two long tanks in the inner wall of the driving shaft 3, and ice water is filled in the liquid storage tank 351; a thermometer 341 is fixedly connected in the inner wall of the driving shaft 3 above the liquid storage tank 351, and the thermometer 341 extends into the ice water; a liquid storage cover 361 is fixedly arranged on the outer side of the driving shaft 3; during operation, because the reservoir 351 that the inner wall of drive shaft 3 was seted up is equipped with frozen water in, can reduce the temperature of drive shaft 3 self in the in-process of drive shaft 3 motion, it is long to improve drive shaft 3's duration of use, because be equipped with thermometer 341 in the drive shaft 3 inner wall, can detect the temperature in drive shaft 3 at any time in the working process of drive shaft 3, when the temperature in drive shaft 3 was too high, stop work and open stock solution lid 361, cool off and change new frozen water after a period, can prevent drive shaft 3 because of the high damage that causes of temperature at any time through the detection at any time of thermometer 341 in this process.
The specific working process is as follows:
when the plunger pump works, after the plunger pump starts to work, because the first rotating shaft 11 is fixedly connected to the left side position of the central line of the rotating disc 2, when the rotating disc 2 drives the first rotating shaft 11 to rotate clockwise, because the second rotating shaft 12 is rotatably connected with the first rotating shaft 11 through the uniformly arranged balls 13, and the second rotating shaft 12 drives the driving shaft 3 to do telescopic motion in the process that the rotating disc 2 drives the first rotating shaft 11 to rotate, because the same poles of the first electromagnetic block 14 and the second electromagnetic block 15 fixedly connected in the inner walls of the first rotating shaft 11 and the second rotating shaft 12 repel each other, in the process that the second rotating shaft 12 drives the driving shaft 3 to do left telescopic motion, through the repulsive force between the same poles of the electromagnets, the friction of the balls 13 to the first rotating shaft 11 and the second rotating shaft 12 can be reduced no matter the driving shaft 3 is extended or contracted, when the second piston 37 drives the flexible shaft 34 to do left telescopic motion, meanwhile, the flexible shaft 34 drives the sliding block 33 to slide back and forth in the sliding groove 32, because the cooling oil is filled in the long groove, when the rotating shaft drives the sliding block 33 to slide rightwards, the cooling oil in the second long groove 331 at the lower part can be sucked into the sliding groove 32, when the flexible shaft 34 drives the sliding block 33 to slide leftwards, the cooling oil in the sliding groove 32 can be pushed into the second long groove 331 at the upper part, the cooling oil entering the second long groove 331 at the upper part flows into the space where the balls 13 are positioned along the second long groove 331, because the sealing plates are fixedly connected to both sides of the rotor 1, the cooling oil can be prevented from flowing out of the rotor 1, and when the flexible shaft 34 drives the sliding block 33 to slide rightwards, the cooling oil in the second long groove 331 at the lower part is sucked into the sliding groove 32 again, so that the cooling oil can work circularly.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A plunger pump rotor characterized by: comprises a rotor (1), a turntable (2) and a driving shaft (3); the rotor (1) comprises a first rotating shaft (11) and a second rotating shaft (12); the first rotating shaft (11) is fixedly connected to the left side of the center line of the turntable (2); the inner wall of the first rotating shaft (11) is fixedly connected with first electromagnetic blocks (14) which are uniformly arranged, and the number of the first electromagnetic blocks (14) is six; the first electromagnetic block (14) is electrically connected with a controller through a lead; the second rotating shaft (12) is rotationally connected with the first rotating shaft (11) through uniformly arranged balls (13); the inner wall of the second rotating shaft (12) is fixedly connected with second electromagnetic blocks (15) which are uniformly arranged, and the number of the second electromagnetic blocks (15) is nine; the second electromagnetic block (15) is electrically connected with the controller through a lead; the opposite side of the second electromagnetic block (15) and the first electromagnetic block (14) has the same magnetism; the outer surface of the second rotating shaft (12) is rotatably connected with a driving shaft (3); a first piston (31) is fixedly connected with the end face of one side of the driving shaft (3) far away from the rotor (1); the end surface of one side of the first piston (31), which is opposite to the driving shaft (3), is fixedly connected with a second piston (37) through uniformly arranged springs; the outer surfaces of the two pistons are connected with a cylindrical plate (321) in a sliding way;
a protective cover (35) which is uniformly arranged is fixedly connected between the end surface of the right side of the first piston (31) and the end surface of the left side of the second piston (37), and the protective cover (35) is designed in a telescopic manner; each spring is distributed in a protective cover (35) which is uniformly arranged;
a first long groove (38) is formed in the inner wall of the second piston (37), and the first long groove (38) is communicated with the outside; a contact (39) is fixedly connected in the first long groove (38), and the contact (39) is electrically connected with the controller through a lead; the inner surface of the cylindrical plate (321) is fixedly connected with a control line (311), and the control line (311) corresponds to the long groove; the control line (311) is electrically connected with the controller through a lead; the contact (39) is attached to the control line (311);
sealing plates are fixedly connected to two sides of the rotor (1), and a sliding groove (32) is formed in the inner wall of the first piston (31); a sliding block (33) is connected in the sliding groove (32) in a sliding manner, and the sliding block (33) is designed to be tightly attached to the inner wall of the sliding groove (32); a flexible shaft (34) is fixedly connected to the end face of one side, opposite to the driving shaft (3), of the sliding block (33), and the flexible shaft (34) extends out of the first piston (31) and is fixedly connected with the second piston (37); the driving shaft (3) is provided with second long grooves (331) which are uniformly arranged, and the number of the second long grooves (331) is two; cooling oil is filled in the two second long grooves (331), and the two second long grooves (331) are fixedly connected with one-way valves; one end of each of the two second long grooves (331) close to the first piston (31) extends into the sliding groove (32) and is communicated with the sliding groove (32); one end of each of the two second long grooves (331) close to the rotor (1) extends to a position between the first rotating shaft (11) and the second rotating shaft (12);
an elastic membrane (36) is fixedly connected in each protective cover (35), and the elastic membrane (36) is designed for wrapping a spring; cooling oil is filled in each elastic membrane (36); the inner wall of the second piston (37) is provided with arc-shaped grooves (371) which are uniformly distributed, and the arc-shaped grooves (371) which are uniformly distributed are communicated with the elastic films (36) which are uniformly distributed one by one; third long grooves (381) which are uniformly distributed are formed in the first piston (31), and the third long grooves (381) which are uniformly distributed are communicated with the sliding groove; the third long grooves (381) are uniformly arranged and are communicated with the elastic films (36) which are uniformly arranged one by one;
a liquid storage tank (351) is arranged between the two long grooves in the inner wall of the driving shaft (3), and ice water is filled in the liquid storage tank (351); a thermometer (341) is fixedly connected in the inner wall of the driving shaft (3) above the liquid storage tank (351), and the thermometer (341) extends into the ice water; a liquid storage cover (361) is fixedly arranged on the outer side of the driving shaft (3);
after the plunger pump starts to work, because the first rotating shaft (11) is fixedly connected to the left side of the center line of the rotating disc (2), when the rotating disc (2) drives the first rotating shaft (11) to rotate clockwise, because the second rotating shaft (12) is rotatably connected with the first rotating shaft (11) through the uniformly arranged balls (13), and the second rotating shaft (12) drives the driving shaft (3) to do telescopic motion in the process that the rotating disc (2) drives the first rotating shaft (11) to rotate, because the same poles of the first electromagnetic block (14) and the second electromagnetic block (15) fixedly connected in the inner walls of the first rotating shaft (11) and the second rotating shaft (12) repel each other, in the process that the second rotating shaft (12) drives the driving shaft (3) to do left telescopic motion, the friction of the balls (13) on the first rotating shaft (11) and the second rotating shaft (12) can be reduced no matter the driving shaft (3) stretches out or contracts through the repulsive force between the same poles, when the second piston (37) drives the flexible shaft (34) to do left telescopic motion, the flexible shaft (34) drives the sliding block (33) to slide back and forth in the sliding groove (32), because the cooling oil is filled in the long groove, when the rotating shaft drives the sliding block (33) to slide right, the cooling oil in the second long groove (331) at the lower part can be sucked into the sliding groove (32), when the flexible shaft (34) drives the sliding block (33) to slide left, the cooling oil in the sliding groove (32) can be pushed into the second long groove (331) at the upper part, the cooling oil entering the second long groove (331) at the upper part flows into the space where the rolling balls (13) are positioned along the second long groove (331), because the two sides of the rotor (1) are fixedly connected with the sealing plates, the cooling oil can be prevented from flowing out of the rotor (1), when the flexible shaft (34) drives the sliding block (33) to slide right, the cooling oil in the second long groove (331) at the lower part is sucked into the sliding groove (32) again, working circularly by the above steps;
the plunger pump rotor is manufactured by the following steps:
s1: three-dimensional design is carried out on a plunger pump structure and a plunger pump rotor pouring system by adopting computer three-dimensional simulation design software, and after the design is finished, the plunger pump rotor is poured by using iron-aluminum alloy and cooled to room temperature in air so as to obtain a steel matrix rotor;
s2: removing burrs generated by casting the surface of the workpiece cast in the step S1 and sand grains adhered to the surface of the workpiece in the casting process, and polishing the cylindrical surface of the through hole of the steel matrix rotor;
s3: preparing a suspension from iron-aluminum alloy powder and a glycol solution, uniformly stirring the suspension, wherein the mass-volume concentration of anhydrous borax powder is 2.34-2.70g/ml, uniformly coating the prepared suspension on the cylindrical surface of a through hole of a steel matrix rotor, and then putting the steel matrix rotor into a drying box for drying;
s4: dehydrating and ball-milling the massive iron-aluminum alloy to obtain anhydrous iron-aluminum alloy powder, and filling the anhydrous iron-aluminum alloy powder into the through hole on the steel matrix rotor to be filled after the steel matrix rotor is dried;
s5: putting the steel matrix rotor filled with the anhydrous iron-aluminum alloy in the S4 into a high-temperature furnace at 1200 +/-30 ℃ for fully preheating, and smelting and casting the copper alloy in the high-temperature furnace at the same temperature to be in a completely liquid state; and then taking the steel matrix rotor and the casting copper alloy solution out of the high-temperature furnace simultaneously, pouring the smelted casting copper alloy into the fully preheated steel matrix rotor through hole, and after cooling in the air, carrying out mechanical processing and forming to obtain the plunger pump rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055928.9A CN110640115B (en) | 2019-10-31 | 2019-10-31 | Plunger pump rotor forming process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055928.9A CN110640115B (en) | 2019-10-31 | 2019-10-31 | Plunger pump rotor forming process |
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| CN110640115A CN110640115A (en) | 2020-01-03 |
| CN110640115B true CN110640115B (en) | 2021-11-02 |
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| DE3333329A1 (en) * | 1983-09-15 | 1985-03-28 | Becker, Erich, 7812 Bad Krozingen | Piston pump, in particular self-aligning piston pump |
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| CN106001443A (en) * | 2016-06-30 | 2016-10-12 | 中北大学 | Forming technology of double-metal plunger pump rotor |
| CN106930916A (en) * | 2017-04-25 | 2017-07-07 | 中国海洋大学 | A kind of dynamic shell type multiaction water hydraulic radial plunger pump |
| EP3267035A1 (en) * | 2016-07-07 | 2018-01-10 | Cameron International Corporation | Mud pump sealing assembly |
| CN107725585A (en) * | 2017-09-30 | 2018-02-23 | 宝鸡市金海源钛标准件制品有限公司 | A kind of wear-resistant bearing of active heat removal |
| CN108474337A (en) * | 2015-12-16 | 2018-08-31 | 德尔福知识产权有限公司 | High-pressure pump with pump spring seal sleeve |
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2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3333329A1 (en) * | 1983-09-15 | 1985-03-28 | Becker, Erich, 7812 Bad Krozingen | Piston pump, in particular self-aligning piston pump |
| CN204476746U (en) * | 2014-12-30 | 2015-07-15 | 米顿罗工业设备（上海）有限公司 | A kind of plunger reciprocating pump of built-in pressure lubrication oil circuit |
| CN108474337A (en) * | 2015-12-16 | 2018-08-31 | 德尔福知识产权有限公司 | High-pressure pump with pump spring seal sleeve |
| CN106001443A (en) * | 2016-06-30 | 2016-10-12 | 中北大学 | Forming technology of double-metal plunger pump rotor |
| EP3267035A1 (en) * | 2016-07-07 | 2018-01-10 | Cameron International Corporation | Mud pump sealing assembly |
| CN106930916A (en) * | 2017-04-25 | 2017-07-07 | 中国海洋大学 | A kind of dynamic shell type multiaction water hydraulic radial plunger pump |
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|---|---|
| CN110640115A (en) | 2020-01-03 |
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Effective date of registration: 20211008 Address after: 518000 buildings 101 and 20, building 19, zone B, Liantang Industrial City, Shangcun community, Gongming street, Guangming District, Shenzhen, Guangdong Applicant after: SHENZHEN ATUS HYDRAULIC MACHINERY Co.,Ltd. Address before: 21 000 Hohai University, 1 Xikang Road, Nanjing, Jiangsu Province Applicant before: Cao Xiaodong |
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