WO2021112327A1 - Rotor ayant une fonction de refroidissement - Google Patents

Rotor ayant une fonction de refroidissement Download PDF

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Publication number
WO2021112327A1
WO2021112327A1 PCT/KR2020/000223 KR2020000223W WO2021112327A1 WO 2021112327 A1 WO2021112327 A1 WO 2021112327A1 KR 2020000223 W KR2020000223 W KR 2020000223W WO 2021112327 A1 WO2021112327 A1 WO 2021112327A1
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WO
WIPO (PCT)
Prior art keywords
rotor
pump
storage space
frictional heat
fluid
Prior art date
Application number
PCT/KR2020/000223
Other languages
English (en)
Korean (ko)
Inventor
노성왕
Original Assignee
주식회사 제이엠모터스펌프
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 제이엠모터스펌프 filed Critical 주식회사 제이엠모터스펌프
Publication of WO2021112327A1 publication Critical patent/WO2021112327A1/fr

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Classifications

    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/126—Rotary-piston machines or pumps 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
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors

Definitions

  • the present invention relates to a rotor having a cooling function, and more particularly, when the pump is driven, frictional heat is generated due to high rotation of the rotor and the side plate, and in order to prevent the rotor from being damaged by the frictional heat and loss of function of the pump. It relates to a rotor having a cooling function to cool a friction part by circulating a supplied fluid.
  • a pump is a device that starts and transfers a fluid by receiving power from a driving means such as a motor.
  • Non-displacement pumps in which energy is converted in an unsealed state, and energy conversion in a sealed state It is distinguished as a positive displacement pump in which this occurs.
  • the discharge pressure decreases as the discharge amount increases, and there are centrifugal pumps, sand flow pumps, axial flow pumps, and the like, depending on the mechanism and structure thereof.
  • the positive displacement pump has an approximately constant discharge amount regardless of the load pressure, and includes a piston pump, a plunger pump, a gear pump, a screw pump, and a vane pump.
  • the positive displacement pump makes a vacuum in the cylinder against reciprocating linear motion such as a piston, a plunger, or a bucket in a cylinder having a constant volume equipped with a suction valve and a discharge valve to suck the liquid, and then through the change of the volume movement It is a pump that supplies and supplies static pressure energy to the liquid by applying the required pressure.
  • the rotary positive displacement pump rotates a rotor of a special shape in a pump case, and a gear pump, a vane pump, and a screw pump are mainly used.
  • the gear pump sends the liquid between the teeth and the pump case wall from the suction pipe to the discharge pipe as the gears rotate in mesh with each other in the container. It is usually for oil and the flow rate is small, but the pressure can be obtained up to 25 ⁇ 30MPa.
  • the vane pump the movable blade goes in and out in the radial direction according to the rotation of the rotor, and the pressure is obtained up to 40MPa in the same way as the gear pump,
  • the pump operates by rotating two or three screw rods. Mainly for oil, the pressure is within 20 MPa.
  • the conventional rotary positive displacement pump can obtain a large lift coefficient and exhibit a function as a pump even at a low speed, but the flow rate is small, and there are drawbacks such as reduced efficiency at low speed rotation, and noise and wear of gears during high pressure and high speed rotation. have.
  • a rotor part 200 for transferring a fluid according to a change in volume by rotation of the rotors 200a and 200b is installed inside the provided case 100, and a rotating shaft integrally formed with the rotors 200a and 200b.
  • the sleeve 300 is installed by being inserted into the shaft hole of the side plate 400, and the sealing means 500 axially installed on the rotation shaft of the rotors 200a and 200b in the chamber 110 formed in the case 100 prevents leakage. installed to prevent it.
  • the rotors 200a and 200b and the side plate 400 are installed in close contact to prevent water leakage, and in the above structure, the rotors 200a and 200b and the side plate 400 are in close contact with the rotor 200a. Since 200b rotates high, high-temperature frictional heat is generated between the rotors 200a and 200b and the side plate 400, and the frictional heat is transmitted to the bearing and gearbox, resulting in shortened lifespan and deformation. If the rubber on the surface of the rotor forming the rotor is deformed by frictional heat, there is a problem that the efficiency of the pump is lowered. In severe cases, the rubber is torn and damaged by frictional heat, so the pump cannot be used. .
  • the present invention has been devised in view of the above-mentioned conventional problems, and its purpose is to cool the frictional heat generated between the rotor and the side plate when the rotor rotates, so that frictional heat is transferred to bearings, gearboxes, O-rings, etc. It is to provide a rotor having a cooling function that prevents the pump from stopping and preventing the rotor from being deformed and damaged by frictional heat.
  • the above object of the present invention is to form a rotation shaft at both ends of a body in a rotor, lobes are formed integrally with the body at regular intervals, and a coating layer formed by coating the lobes with an elastic material is formed.
  • a cooling function characterized in that forming a storage space for temporarily storing the supplied and discharged fluid, the storage space is divided into two by a dividing wall, and a flow path connected to the outside of the rotor is formed in each storage space It is achieved by a rotor having
  • the storage space is achieved by the rotor having a cooling function, characterized in that made of a cross-sectional shape of the groove.
  • the storage space is achieved by a rotor having a cooling function, characterized in that formed on the side of the lobe.
  • the rotor having the cooling function of the present invention as described above makes it possible to cool the frictional heat generated between the rotor and the side plate when the rotor rotates, thereby preventing the frictional heat from being transmitted to bearings, gearboxes, and O-rings to prevent deformation, and also It is a very useful invention that has the effect of preventing the rotor from being deformed and damaged due to frictional heat, thereby preventing the pump from stopping.
  • FIGS. 1A and 1B are an exploded perspective view and a combined cross-sectional view showing the structure of a general positive displacement pump.
  • Figure 2 is a perspective view showing the structure of the rotor to which the technology of the present invention is applied.
  • Figure 3 is a side view showing the storage space formed in the lobe of the technical rotor of the present invention.
  • Figure 4 is an exemplary view showing the action of the fluid introduced between the rotor and the side plate.
  • a pair of rotors 200 for transferring fluid are installed inside the pump case 100 having an inlet and an outlet in the structure of the rotary displacement pump, and the rotor 200 is
  • the bearing 300 is axially installed on the rotating shaft, and the side plate 400 provided with the shaft hole is installed on the rotating shaft on which the bearing 300 is installed.
  • the structure of the rotor 200 is as shown in the accompanying drawings 2 and 3, the rotation shaft 220 is formed at both ends of the body 210, and the lobes 230 are integrally formed with the body 210 at regular intervals.
  • the lobe 230 is formed by forming a coating layer 240 formed by being coated with an elastic material, and a storage space 250 for temporarily storing the supplied and discharged fluid is formed in the coating layer 240 on the side of the body 210 .
  • the storage space 250 is divided into two by a dividing wall 270 , and a flow path 260 connected to the outside of the rotor 200 is formed in each of the storage spaces 250 .
  • the storage space 250 may have a cross-sectional shape of the groove, and the storage space 250 may be formed on the side surface of the lobe 230 to be used.
  • the flow path 260 can be formed and used regardless of the upper end of the storage space 250 , that is, the end of the lobe 230 or the inside where the rotation shaft 220 is located.
  • the structure of the storage space 250 is divided by a dividing wall 270 that forms a cross section of a concave groove and divides the space in a vertical direction.
  • the reason for vertical separation is to prevent a pressure leak from occurring when the fluid in the low pressure state and the fluid in the high pressure state are mixed because the low pressure state is changed when the fluid is supplied but the high pressure state is changed when the fluid is discharged.
  • the structure of the dividing wall 270 may be used by forming the same height as the surface of the coating layer 240 shown in FIG. 3 , but the dividing wall 270 obtains the effect of dividing the storage space 250 . Although it has a function, it also serves as a blade to scrape off the fluid adhered to the surface of the side plate 400 .
  • the pump rotor 200 of the present invention having the above functions has a low pressure on the side to which the fluid is supplied centering on an arbitrary center line "O" as shown in the accompanying drawings, and the compression force of the rotor 200 is The side from which the fluid is discharged by the high pressure is compressed and transported to the high pressure.
  • the rotor 200 rotates at high speed while repeating meshing with each other.
  • a side plate is installed to prevent water leakage during high-speed rotation of the rotor, and leakage occurs between the side plate and the rotor. Leakage is prevented by pressing the rotor toward the side plate to prevent it from happening, but frictional heat is generated as the rotor rotates at high speed, and the frictional heat is transmitted to bearings, gearboxes, and O-rings, thereby shortening the lifespan.
  • a portion of the fluid supplied to cool the frictional heat is moved to the storage space 250 through the flow path 260 provided on the side, and the fluid is moved to the storage space 250 .
  • the fluid comes into contact with the side plate, it acts as a cooling and lubricating oil.
  • the fluid moved to the storage space 250 on the side cools the frictional heat generated by friction between the side plate and the side plate of the rotor 200, and provides a lubricating oil effect when the rotor rotates, thereby preventing damage to the rotor.
  • the fluid supply side becomes low pressure and the storage space located at the outlet side becomes high pressure based on the separation wall. Therefore, the storage space repeats the low-pressure-high-pressure-low-pressure state.
  • Frictional heat generated between the and side plate is cooled to prevent deformation by transferring frictional heat to bearings, gearboxes, and O-rings. Also, it prevents deformation and damage of the rotor due to frictional heat to stop the pump. It is a very useful invention that has the effect of preventing it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

La présente invention concerne un rotor ayant une fonction de refroidissement et, plus spécifiquement, un rotor ayant une fonction de refroidissement pour refroidir une zone de friction en faisant circuler un fluide fourni afin d'empêcher un phénomène dans lequel, lorsqu'une pompe est entraînée, la chaleur de friction est générée entre un rotor et une plaque latérale en raison d'une rotation à grande vitesse, et ainsi, le rotor se brise en raison de la chaleur de friction et la fonction de la pompe est perdue. Selon la présente invention, en ce qui concerne un rotor pour une pompe, des arbres rotatifs sont formés sur les extrémités opposées d'un corps, des lobes sont formés sur le corps à des intervalles constants, les lobes ayant des couches de revêtement formées par revêtement des lobes avec un matériau élastique, et les couches de revêtement sur une surface latérale du corps sont pourvues d'espaces de stockage formés pour stocker temporairement un fluide fourni et déchargé. Chacun des espaces de stockage est divisé en deux par une paroi de séparation et comporte un trajet d'écoulement formé à l'intérieur de celui-ci pour être relié à l'extérieur du rotor.
PCT/KR2020/000223 2019-12-03 2020-01-07 Rotor ayant une fonction de refroidissement WO2021112327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190159038A KR102163224B1 (ko) 2019-12-03 2019-12-03 냉각 기능을 갖는 로터
KR10-2019-0159038 2019-12-03

Publications (1)

Publication Number Publication Date
WO2021112327A1 true WO2021112327A1 (fr) 2021-06-10

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Application Number Title Priority Date Filing Date
PCT/KR2020/000223 WO2021112327A1 (fr) 2019-12-03 2020-01-07 Rotor ayant une fonction de refroidissement

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KR (1) KR102163224B1 (fr)
WO (1) WO2021112327A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102654609B1 (ko) * 2022-10-19 2024-04-08 전진건설로봇(주) 실링장치의 냉각 효과를 갖는 회전로터

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180299A (en) * 1992-04-27 1993-01-19 Feuling Engineering, Inc. Roots type supercharger
JPH08121350A (ja) * 1994-10-28 1996-05-14 Shimadzu Corp 歯車ポンプ
US6045343A (en) * 1998-01-15 2000-04-04 Sunny King Machinery Co., Ltd. Internally cooling rotary compression equipment
US20160047462A1 (en) * 2013-03-22 2016-02-18 Settima Meccanica S.r.l. - Societa a Socio Unico Gear Wheel with Meshing Teeth
CN107339238B (zh) * 2017-08-29 2019-04-23 杭州电子科技大学 一种复合拆封式包裹耐磨粘附转子

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180299A (en) * 1992-04-27 1993-01-19 Feuling Engineering, Inc. Roots type supercharger
JPH08121350A (ja) * 1994-10-28 1996-05-14 Shimadzu Corp 歯車ポンプ
US6045343A (en) * 1998-01-15 2000-04-04 Sunny King Machinery Co., Ltd. Internally cooling rotary compression equipment
US20160047462A1 (en) * 2013-03-22 2016-02-18 Settima Meccanica S.r.l. - Societa a Socio Unico Gear Wheel with Meshing Teeth
CN107339238B (zh) * 2017-08-29 2019-04-23 杭州电子科技大学 一种复合拆封式包裹耐磨粘附转子

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