CN114962266A - One-way bearing type ice-breaking hydrogen circulating pump - Google Patents

One-way bearing type ice-breaking hydrogen circulating pump Download PDF

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Publication number
CN114962266A
CN114962266A CN202210494080.5A CN202210494080A CN114962266A CN 114962266 A CN114962266 A CN 114962266A CN 202210494080 A CN202210494080 A CN 202210494080A CN 114962266 A CN114962266 A CN 114962266A
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China
Prior art keywords
rotor
male
female
shaft
rotor shaft
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Granted
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CN202210494080.5A
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CN114962266B (en
Inventor
邢子义
徐丙振
季高录
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Yantai Dongde Industrial Co Ltd
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Yantai Dongde Industrial Co Ltd
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Publication of CN114962266B publication Critical patent/CN114962266B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/18—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

A unidirectional bearing type icebreaking hydrogen circulating pump comprises a rotor, a rotor and a fan, wherein the rotor comprises a rotor core arranged on the outer side of a motor main shaft, a magnet is arranged on the outer side of the rotor core, rotor flanges are fixedly arranged on two end faces of the rotor core and the magnet respectively, a unidirectional bearing is arranged between each rotor flange and the motor main shaft respectively, an inner ring of the unidirectional bearing is fixedly connected with the motor main shaft, and an outer ring of the unidirectional bearing is fixedly connected with the rotor flanges; the male rotor and the female rotor respectively comprise rotor bodies made of LCP engineering plastics, the male rotor shaft and the female rotor shaft are made of metals, and the rotor bodies are directly injected on the male rotor shaft and the female rotor shaft and connected with the male rotor shaft and the female rotor shaft into a whole. The rotor of the motor and the motor spindle can rotate relatively to each other to adjust the angle, the rotor can rotate later to find the maximum torque point to form a rotor no-load rotation angle, and the rotor rotates in an idle mode at low temperature to form torque inertia impact force to break ice, so that the motor is protected.

Description

One-way bearing type ice-breaking hydrogen circulating pump
The technical field is as follows:
the invention relates to a one-way bearing type ice-breaking hydrogen circulating pump.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the fuel cell reaction, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, the hydrogen is on one hand wasted energy, on the other hand pollutes the environment, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated. Therefore, it is necessary to recover and reuse the hydrogen gas. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling. At present, when a hydrogen circulating pump works, because some water vapor can be contained in hydrogen-containing mixed gas discharged by a fuel cell, a certain amount of water can be accumulated in a pressurizing cavity of the hydrogen circulating pump after the hydrogen circulating pump is used for a period of time, if the water is discharged untimely, the water can be condensed into ice after the hydrogen circulating pump is stopped when the temperature is too low in winter, so that a male rotor and a female rotor are frozen, the existing motor rotor and the motor main shaft are installed in an interference fit mode, the motor main shaft rotates when the motor is started, the male rotor and the female rotor are not frozen and can not break ice, so that the motor is locked, and even the motor is damaged seriously.
At present, the male rotor and the female rotor are generally made of aluminum alloy, the aluminum alloy is cooled quickly, the aluminum alloy is easy to freeze at low temperature, the hydrogen circulating pump is not favorable for ice breaking, and the aluminum alloy rotor also has the following defects:
(1) in the process of pressurizing the hydrogen-containing mixed gas, the aluminum alloy material is directly contacted with the hydrogen-containing mixed gas and is easily corroded by hydrogen and water vapor, so that the gap error is increased, and the working stability and the service life are influenced;
(2) the original rotor is finished by adopting 7075 aluminum alloy rough and finish milling, not only has heavy weight, but also is assembled after being assembled with a rotor shaft, deviation is easy to exist in the assembling process, and the repair frequency is high, so that the rotor has high material cost and manufacturing cost;
(3) the process of spraying the anticorrosive coating on the aluminum alloy rotor appears in the market later, but on the first hand, the film formed by one-time spraying is very thin, the film required by the formation needs to be sprayed for multiple times, multiple curing is carried out, the process is complex, the cost is high, in addition, the spraying coating is usually made of Teflon or polytetrafluoroethylene materials, the thermal expansion coefficient of the materials is large, and under the high-temperature condition, the coating is separated from the rotor, so that the clearance of the pump is reduced, and the risks of abrasion and blocking are generated; on the basis of machining precision, uneven errors of spraying thickness are increased for the spraying layer, and outline precision of a finished product is reduced, so that meshing precision of the whole machine is reduced, and consistency of product performance is affected; in the third aspect, the cost and the labor hour waste of secondary processing exist in the spraying layer, in addition, the poor bonding force of the plastic coating and the substrate has the problem that the plastic coating is separated from the plastic coating after use, because the mold ejector rod is needed to eject the workpiece during the plastic coating rotor processing, the plastic coating rotor end face has 3 holes, on one hand, air can enter between the plastic coating and the insert through the 3 holes, the bonding force is more prone to be poor, in addition, the exposed aluminum surface of the 3 holes of the insert is prone to corrosion, the processing qualification rate and the influence performance are influenced, and hydrogen and water vapor can be caused to enter gaps between the plastic coating and the substrate to corrode.
In conclusion, in the field of hydrogen circulation pumps, the ice breaking problem becomes a technical problem to be solved urgently in the industry.
The invention content is as follows:
in order to make up for the defects of the prior art, the invention provides a one-way bearing type icebreaking hydrogen circulating pump, which solves the problems that a male rotor and a female rotor are frozen and freeze to damage a motor due to over low temperature, the corrosion resistance of the conventional aluminum alloy rotor is poor, the problems of heavy weight, high cost and troublesome assembly of the conventional aluminum alloy rotor are solved, and the problems of complex process, high cost, easy falling off of a coating, abrasion and blocking of the conventional spray rotor are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a one-way bearing type icebreaking hydrogen circulating pump comprises a motor shell and a supercharger shell, wherein a stator, a rotor and a motor spindle are arranged in the motor shell, a gear chamber is formed between the supercharger shell and the motor shell, a driving gear and a driven gear are arranged in the gear chamber, a supercharging cavity is formed in the other side of the supercharger shell, a male rotor and a female rotor are arranged in the supercharging cavity, the driving gear and the male rotor are arranged on a male rotor shaft, and the driven gear and the female rotor are arranged on a female rotor shaft;
the rotor comprises a rotor core arranged on the outer side of a motor spindle, magnets are arranged on the outer side of the rotor core, rotor flanges are fixedly arranged on two end faces of the rotor core and the magnets respectively, a one-way bearing is arranged between each rotor flange and the motor spindle respectively, an inner ring of each one-way bearing is fixedly connected with the motor spindle, an outer ring of each one-way bearing is fixedly connected with the rotor flange, each one-way bearing forms a rotor no-load rotation angle, the rotor rotates in a no-load mode to form torque inertia impact force when being started at a low temperature, then the motor spindle drives a male rotor shaft to rotate, the male rotor shaft drives a driven gear to rotate through a driving gear, the driven gear drives a female rotor shaft to rotate, and the male rotor and the female rotor on the male rotor shaft and the female rotor shaft synchronously rotate to break ice;
the male rotor and the female rotor respectively comprise rotor bodies, the rotor bodies are made of LCP engineering plastics, male rotor shafts and female rotor shafts are made of metals, the rotor bodies are directly molded on the male rotor shafts and the female rotor shafts and connected with the male rotor shafts and the female rotor shafts into a whole, limit keys are arranged between the male rotor shafts, the female rotor shafts and the rotor bodies, and the limit keys are used for preventing the rotor bodies from generating axial displacement and radial displacement.
And the inner ring of the one-way bearing is in interference press-fitting connection with the motor spindle.
The middle part of the rotor flange is bent inwards to form a clamping groove, and the outer ring of the one-way bearing is pressed in the clamping groove in an interference fit mode.
The motor main shaft is made of aluminum alloy or stainless steel or 45 steel.
The motor main shaft and the male rotor shaft are integrally manufactured.
The male and female rotors comprise screw or roots or claw or gear type structures.
The number of the blades of the male rotor and the female rotor is 2-6.
The limiting key, the male rotor shaft and the female rotor shaft are integrally machined and formed, and the limiting key comprises a spline.
The processing steps of the rotor body, the male rotor shaft and the female rotor shaft are as follows: firstly, rough machining is carried out on a male rotor shaft and a female rotor shaft, splines are machined on the male rotor shaft and the female rotor shaft, then the rotor body is directly injected on the male rotor shaft and the female rotor shaft corresponding to the spline positions, after the rotor body is cooled and shaped, finish machining is carried out on the male rotor shaft and the female rotor shaft, and finally, finish machining is carried out on the rotor body.
The number of the limiting keys is two, and the two limiting keys are arranged on the male rotor shaft and the female rotor shaft at intervals.
Lightening holes are formed in the blades of the rotor body.
By adopting the scheme, the invention has the following advantages:
the unidirectional bearings are respectively arranged between each rotor flange and the motor main shaft, the inner rings of the unidirectional bearings are fixedly connected with the motor main shaft, the outer rings of the unidirectional bearings are fixedly connected with the rotor flanges, the rotor of the motor and the motor main shaft can rotate relatively to adjust the angle, the rotor can rotate later to find the maximum torque point to form a rotor no-load rotation angle, the rotor rotates in a no-load manner to form torque inertia impact force to break ice when the rotor is started at a low temperature, the phenomenon of motor stalling is avoided, the motor is protected, the two unidirectional bearings can also play a certain load bearing role to protect the rotor, the rotor is prevented from being damaged, and the service life of the rotor is ensured;
the LCP engineering plastics are adopted to manufacture the rotor body, the rotor body is directly injected on the male rotor shaft and the female rotor shaft and connected with the male rotor shaft and the female rotor shaft into a whole, the LCP engineering plastics are slowly cooled and are not easy to freeze at low temperature, on one hand, the LCP engineering plastics have high fluidity, the injection temperature and the mold temperature are low, and the LCP engineering plastics are more suitable for injection molding; on the other hand, compared with the aluminum alloy material, the LCP engineering plastic has the advantages of low density, light weight, low material cost and small thermal expansion coefficient, is more suitable for the operation of the hydrogen circulating pump at low temperature and high temperature, and prolongs the service life of the product.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional structure view of the rotor of the motor of the present invention.
Fig. 3 is a schematic perspective view of the male rotor of the present invention.
FIG. 4 is a schematic cross-sectional structural view of the male rotor of the present invention.
Fig. 5 is a schematic perspective view of the male rotor shaft of the present invention.
In the figure, 1, a motor shell, 2, a supercharger shell, 3, a driving gear, 4, a driven gear, 5, a male rotor, 6, a female rotor, 7, a male rotor shaft, 8, a female rotor shaft, 9, a stator, 10, a rotor, 11, a motor spindle, 12, a rotor iron core, 13, a magnet, 14, a rotor flange, 15, a one-way bearing, 16, a clamping groove, 17, a rotor body, 18, a limit key, 19 and a lightening hole.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-5, a one-way bearing type circulating pump for hydrogen gas for ice breaking comprises a motor housing 1 and a supercharger housing 2, wherein a stator 9, a rotor 10 and a motor spindle 11 are arranged in the motor housing 1, a gear chamber is formed between the supercharger housing 2 and the motor housing 1, a driving gear 3 and a driven gear 4 are arranged in the gear chamber, a supercharging cavity is arranged at the other side of the supercharger housing 2, a male rotor 5 and a female rotor 6 are arranged in the supercharging cavity, the driving gear 3 and the male rotor 5 are mounted on a male rotor shaft 7, and the driven gear 4 and the female rotor 6 are mounted on a female rotor shaft 8;
the rotor 10 comprises a rotor core 12 arranged on the outer side of a motor main shaft 11, a magnet 13 arranged on the outer side of the rotor core 12, rotor flanges 14 respectively fixedly arranged on two end faces of the rotor core 12 and the magnet 13, a one-way bearing 15 respectively arranged between each rotor flange 14 and the motor main shaft 11, the inner ring of the one-way bearing 15 is fixedly connected with the motor main shaft 11, the outer ring of the one-way bearing 15 is fixedly connected with the rotor flange 14, the one-way bearing 15 forms a rotor no-load rotation angle, when the rotor is started at a low temperature, the rotor is firstly rotated at a no-load state to form a torque inertia impact force, then the one-way bearing 15 drives the motor spindle 11 to rotate, the motor spindle 11 drives the male rotor shaft 7 to rotate, the male rotor shaft 7 drives the driven gear 4 to rotate through the driving gear 3, the driven gear 4 drives the female rotor shaft 8 to rotate, and the male rotor 5 and the female rotor 6 on the male rotor shaft 7 and the female rotor shaft 8 synchronously rotate to break ice;
male rotor 5 and female rotor 6 include rotor body 17 respectively, rotor body 17 adopts LCP engineering plastics to make, male rotor shaft 7 and female rotor shaft 8 adopt the metal to make, rotor body 17 directly moulds plastics and is connected in an organic whole with male rotor shaft, female rotor shaft on male rotor shaft 7, female rotor shaft 8, be equipped with spacing key 19 between male rotor shaft, female rotor shaft and the rotor body, spacing key 19 is used for preventing rotor body from taking place axial and radial displacement.
The one-way bearing 15 is a bearing which can rotate freely in one direction and is locked in the other direction, a plurality of rolling shafts, rolling needles or rolling balls are contained in a metal shell of the one-way bearing 15, and the rolling seats are shaped to roll only in one direction and generate great resistance in the other direction. The arrangement of the one-way bearing 15 enables the rotor 10 of the motor and the motor spindle 11 to rotate relatively to adjust the angle, the rotor 10 can turn later to find the maximum torque point, and the torque inertia impact force is formed to break ice when the motor is started, so that the phenomenon of motor stalling is avoided, and the motor is protected. The two one-way bearings 15 can play a certain bearing role between the motor main shaft 11 and the rotor flange 14, so as to protect the rotor 10, prevent the rotor 10 from being damaged and ensure the service life of the rotor 10.
The inner ring of the one-way bearing 15 is in interference press-fitting connection with the motor spindle 11, so that the inner ring of the one-way bearing 15 is fixedly connected with the motor spindle 11.
The middle part of the rotor flange 14 is bent inwards to form a clamping groove 16, and the outer ring of the one-way bearing 15 is pressed in the clamping groove 16 in an interference fit mode, so that the outer ring of the one-way bearing 15 is fixedly connected with the rotor flange 14.
The motor spindle 11 is made of aluminum alloy or stainless steel or 45 steel.
The motor spindle 11 is made integral with the male rotor shaft 7.
The male and female rotors 5, 6 comprise screw or roots or claw or gear type structures.
The number of the blades of the male rotor 5 and the female rotor 6 is 2-6.
The processing steps of the rotor body 17, the male rotor shaft 7 and the female rotor shaft 8 are as follows: firstly, rough machining is carried out on a male rotor shaft and a female rotor shaft, splines are machined on the male rotor shaft and the female rotor shaft, then the rotor body is directly injected on the male rotor shaft and the female rotor shaft corresponding to the spline positions, after the rotor body is cooled and shaped, finish machining is carried out on the male rotor shaft and the female rotor shaft, and finally, finish machining is carried out on the rotor body, so that the required precision requirement is met.
The limiting key 18, the male rotor shaft 7 and the female rotor shaft 8 are integrally machined and formed, the limiting key can be directly machined on the male rotor shaft and the female rotor shaft through a machine tool, the limiting key 18 comprises a spline, and the multi-tooth shape of the spline can enhance the radial binding force between the male rotor shaft, the female rotor shaft and the rotor body, so that the radial displacement of the rotor body is effectively avoided.
The number of the limiting keys 18 is two, and the two limiting keys are arranged on the male rotor shaft and the female rotor shaft at intervals, so that the axial limiting effect on the rotor body can be enhanced, and the axial displacement of the rotor body is avoided.
Weight-reducing holes 19 are formed in the blades of the rotor body 17.
During operation, rotor 10 passes through one-way bearing 15 and drives motor spindle 11 rotatory, and motor spindle 11 drives the rotation of male rotor axle 7, and male rotor axle 7 drives male rotor 5 on the one hand and rotates, and on the other hand drives driving gear 3 rotatory, and driving gear 3 drives driven gear 4 again and rotates, and driven gear 4 drives the synchronous rotation of female rotor 8 on the female rotor axle 8, realizes the pressure boost function of hydrogen circulating pump.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.

Claims (10)

1. The utility model provides an one-way bearing type hydrogen circulating pump that opens ice which characterized in that: the motor comprises a motor shell and a supercharger shell, wherein a stator, a rotor and a motor spindle are arranged in the motor shell, a gear chamber is formed between the supercharger shell and the motor shell, a driving gear and a driven gear are arranged in the gear chamber, a supercharging cavity is formed in the other side of the supercharger shell, a male rotor and a female rotor are arranged in the supercharging cavity, the driving gear and the male rotor are arranged on a male rotor shaft, and the driven gear and the female rotor are arranged on a female rotor shaft;
the rotor comprises a rotor core arranged on the outer side of a motor spindle, magnets are arranged on the outer side of the rotor core, rotor flanges are fixedly arranged on two end faces of the rotor core and the magnets respectively, a one-way bearing is arranged between each rotor flange and the motor spindle respectively, an inner ring of each one-way bearing is fixedly connected with the motor spindle, an outer ring of each one-way bearing is fixedly connected with the rotor flange, each one-way bearing forms a rotor no-load rotation angle, the rotor rotates in a no-load mode to form torque inertia impact force when being started at a low temperature, then the motor spindle drives a male rotor shaft to rotate, the male rotor shaft drives a driven gear to rotate through a driving gear, the driven gear drives a female rotor shaft to rotate, and the male rotor and the female rotor on the male rotor shaft and the female rotor shaft synchronously rotate to break ice;
the male rotor and the female rotor respectively comprise rotor bodies, the rotor bodies are made of LCP engineering plastics, male rotor shafts and female rotor shafts are made of metals, the rotor bodies are directly molded on the male rotor shafts and the female rotor shafts and connected with the male rotor shafts and the female rotor shafts into a whole, limit keys are arranged between the male rotor shafts, the female rotor shafts and the rotor bodies, and the limit keys are used for preventing the rotor bodies from generating axial displacement and radial displacement.
2. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: and the inner ring of the one-way bearing is in interference press-fitting connection with the motor spindle.
3. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the middle part of the rotor flange is bent inwards to form a clamping groove, and the outer ring of the one-way bearing is pressed in the clamping groove in an interference fit mode.
4. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the motor main shaft is made of aluminum alloy or stainless steel or 45 steel.
5. A one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the motor main shaft and the male rotor shaft are integrally manufactured.
6. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the male rotor and the female rotor comprise screw type or roots type or claw type or gear type structures, and the number of the blades of the male rotor and the female rotor is 2-6.
7. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the processing steps of the rotor body, the male rotor shaft and the female rotor shaft are as follows: firstly, rough machining is carried out on a male rotor shaft and a female rotor shaft, splines are machined on the male rotor shaft and the female rotor shaft, then the rotor body is directly injected on the male rotor shaft and the female rotor shaft corresponding to the spline positions, after the rotor body is cooled and shaped, finish machining is carried out on the male rotor shaft and the female rotor shaft, and finally, finish machining is carried out on the rotor body.
8. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the limiting key is integrally machined and formed with the male rotor shaft and the female rotor shaft, and the limiting key comprises a spline.
9. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: the number of the limiting keys is two, and the two limiting keys are arranged on the male rotor shaft and the female rotor shaft at intervals.
10. The one-way bearing type icebreaking hydrogen circulation pump according to claim 1, characterized in that: and lightening holes are formed in the blades of the rotor body.
CN202210494080.5A 2022-05-08 2022-05-08 Unidirectional bearing type ice-breaking hydrogen circulating pump Active CN114962266B (en)

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US20070177999A1 (en) * 2006-01-20 2007-08-02 Toshiro Fujii Electric pump for hydrogen circulation
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CN109763981A (en) * 2019-02-22 2019-05-17 浙江凯尼真空设备有限公司 A kind of composite rotors, the injection mold for producing the rotor and rotor production technology
CN111173743A (en) * 2020-02-03 2020-05-19 烟台东德实业有限公司 Put formula hydrogen circulating pump in bearing
CN214660829U (en) * 2021-03-24 2021-11-09 烟台东德实业有限公司 Icebreaking hydrogen circulating pump
CN216241287U (en) * 2021-11-16 2022-04-08 重庆凯瑞动力科技有限公司 Hydrogen circulating pump of fuel cell

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Publication number Priority date Publication date Assignee Title
CN2721914Y (en) * 2004-08-18 2005-08-31 王于祥 Corrosion-proof rotor of Roots pump
US20070177999A1 (en) * 2006-01-20 2007-08-02 Toshiro Fujii Electric pump for hydrogen circulation
CN203175858U (en) * 2013-04-27 2013-09-04 宁波爱发科真空技术有限公司 Roots pump with anti-corrosion layers on pump body and rotor
CN106026576A (en) * 2016-06-29 2016-10-12 清华大学 Asynchronous starting permanent-magnet synchronous motor with smooth self-starting function
CN109763981A (en) * 2019-02-22 2019-05-17 浙江凯尼真空设备有限公司 A kind of composite rotors, the injection mold for producing the rotor and rotor production technology
CN111173743A (en) * 2020-02-03 2020-05-19 烟台东德实业有限公司 Put formula hydrogen circulating pump in bearing
CN214660829U (en) * 2021-03-24 2021-11-09 烟台东德实业有限公司 Icebreaking hydrogen circulating pump
CN216241287U (en) * 2021-11-16 2022-04-08 重庆凯瑞动力科技有限公司 Hydrogen circulating pump of fuel cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116480579A (en) * 2023-04-23 2023-07-25 烟台东德实业有限公司 Method for hollowing and breaking ice by hydrogen circulating pump
CN116480579B (en) * 2023-04-23 2024-08-13 烟台东德实业有限公司 Method for hollowing and breaking ice by hydrogen circulating pump

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