WO2021112327A1 - Rotor having cooling function - Google Patents
Rotor having cooling function Download PDFInfo
- 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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- WIPO (PCT)
- Prior art keywords
- rotor
- pump
- storage space
- frictional heat
- fluid
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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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
- 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
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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
- 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
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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
- F04C2230/00—Manufacture
- F04C2230/90—Improving properties of machine parts
- F04C2230/91—Coating
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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
- F04C2240/00—Components
- F04C2240/20—Rotors
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- 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
Description
본 발명은 냉각 기능을 갖는 로터에 관한 것으로서 보다 상세하게는 펌프의 구동시 로터와 사이드 플레이트는 고회전에 따른 마찰열이 발생되며 상기한 마찰열에 의해 로터가 파손되어 펌프의 기능이 상실되는 것을 방지하기 위해 공급되는 유체를 순환시켜 마찰부위를 냉각하도록 한 냉각 기능을 갖는 로터에 관한 것이다.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.
일반적으로 펌프는 모터와 같은 구동수단의 동력을 전달받아 기동하여 유체를 이송하는 기기로, 밀폐되지 않은 상태에서 에너지의 전환이 일어나는 비용적형(非容積形) 펌프와, 밀폐된 상태에서 에너지의 전환이 일어나는 용적형(容積形) 펌프로 구별된다. 비용적형 펌프는 토출량이 증가함에 따라 토출압은 감소하는 것으로, 그 기구 및 구조에 따라 원심펌프, 사류펌프, 축류펌프 등이 있다. 그리고 용적형 펌프는 토출량이 부하압력에 관계 없이 대략 일정한 것으로, 피스톤펌프, 플런저펌프, 기어펌프, 나사펌프, 베인펌프 등이 있다.In general, 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. In the non-displacement pump, 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. In addition, 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.
상기 용적형 펌프는 흡입밸브와 송출밸브를 장치한 일정한 체적을 가진 실린더 내를 피스톤, 플렌저 또는 버킷 등의 왕복 직선운동에 대하여 실린더 내를 진공으로 만들어 액체를 흡입하고 이에 용적의 이동 변화를 통하여 소요의 압력을 가함으로써 액체에 정압력에너지를 공급하여 송수하는 펌프이다.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.
상기 회전식 용적형 펌프는 펌프케이스 안에서 특수한 형태의 로터를 회전시키는 것으로 기어펌프, 베인펌프, 나사펌프가 주종을 이룬다. 기어펌프는 기어가 용기 안에서 서로 맞물려 회전하면서 톱니와 펌프케이스벽 사이의 액체를 흡입관에서 배출관으로 보낸다. 기름용이 보통이며 유량은 적지만 압력은 25~30MPa까지 얻을 수 있으며, 상기 베인펌프는 로터의 회전에 따라 가동날개가 반지름 방향으로 출입하여 기어펌프와 같은 방식으로 압력은 최고 40MPa 정도까지 얻어지고 나사펌프는 2~3개의 나사봉을 맞물려 회전시켜서 펌프를 작동하게 하는 것이다. 주로 기름용으로 압력은 20MPa 이내이다.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. In 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.
상기와 같은 종래의 회전식 용적형 펌프에 있어서 기어펌프와 똑같은 원리로 액체를 압출하는 것에 로브펌프(lobular pump)가 있다. 이것은 기어펌프의 치차를 적게 한 것이라고 볼 수 있으며, 구조는 한조의 로터가 맞물림으로써 상대방을 회전시킬 수 없으므로 외부에 있는 별도의 기어에 의해 상대방을 구동한다.In the conventional rotary positive displacement pump as described above, there is a lobular pump for extruding a liquid on the same principle as a gear pump. This can be seen as a small number of gears in the gear pump, and since a set of rotors cannot rotate the other due to meshing, the other is driven by a separate external gear.
상기 종래의 회전식 용적형 펌프는 큰 양정계수를 얻을 수 있고 저속에서도 펌프로서의 기능을 발휘하지만, 유량이 적고 저속회전시 효율 저하, 고압 고속회전시 기어의 소음 및 마모 등의 장애가 발생하게 되는 결점이 있다.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.
이러한 상기 종래 문제점을 해소하고자 대한민국 특허등록 제552597호인 회전식 용적형 펌프를 제안한 바 있으나 상기한 본 출원인의 선 등록인 회전식 용적형 펌프는 첨부도면 도 1a 및 도 1b에 도시된 바와 같이 흡입구와 토출구가 구비된 케이스(100) 내부에는 로터(200a)(200b)의 회전에 의하여 용적의 변화에 따라 유체를 이송시키는 로터부(200)가 설치되며, 상기 로터(200a)(200b)와 일체로 형성된 회전축에는 슬리브(300)가 사이드 플레이트(400)의 축공에 끼워져 설치되며, 상기 케이스(100)에 형성된 챔버(110)에는 로터(200a)(200b)의 회전축에 축설되는 밀봉수단(500)이 누수를 방지하도록 설치되어 있다.In order to solve the above-mentioned problems of the prior art, a rotary positive displacement pump of Korean Patent Registration No. 552597 has been proposed, but the above-mentioned rotary positive displacement pump, which was previously registered by the present applicant, has suction and discharge ports as shown in FIGS. 1A and 1B of the accompanying drawings. A
이때 로터(200a)(200b)와 사이드 플레이트(400)는 누수를 방지하기 위하여 밀착 설치되며 상기한 구조에 있어서 로터(200a)(200b)와 사이드 플레이트(400)는 밀착된 상태에서 로터(200a)(200b)가 고회전 되기 때문에 로터(200a)(200b)와 사이드 플레이트(400) 사이에는 고온의 마찰열이 발생되며, 상기한 마찰열은 베어링 및 기어박스에 전달되어 수명 단축과 변형을 일으키는 문제가 있으며 더욱이 마찰열에 의해 로터를 형성하고 있는 표면의 고무가 마찰열에 의하여 변형이 일어나면 펌프의 효율이 저하되는 문제가 있고 심할 경우 고무가 마찰열에 의해 찢어져 파손되는 문제로 인해 펌프를 사용할 수 없게 되는 커다란 문제가 있다. At this time, the
본 발명은 상기한 종래 문제점을 감안하여 안출한 것으로서 이의 목적은 로터의 회전시 로터와 사이드 플레이트 사이에서 발생되는 마찰열을 냉각할 수 있도록 하여 베어링 및 기어박스, O-링 등에 마찰열이 전달되어 변형되는 것을 방지하며, 또한 마찰열에 의한 로터의 변형 및 파손을 방지하여 펌프가 멈추어 정지되는 것을 방지하도록 하는 냉각 기능을 갖는 로터를 제공하는데 있다.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.
상기한 본 발명의 목적은 로터에 있어서, 몸체의 양단으로 회전축을 형성하고 상기 몸체에 일체로 로브가 일정한 간격으로 형성되며 상기 로브에는 탄성재가 피복되어 형성된 코팅층을 형성하여 이루어지되 몸체 측면의 코팅층에는 공급 및 배출되는 유체를 일시 저장하는 저장공간을 형성하고 상기 저장공간은 분할벽에 의해 2개로 분할 형성되며 상기 각각의 저장공간에는 로터의 외부와 연결되는 유로가 형성되어 이루어진 것을 특징으로 하는 냉각 기능을 갖는 로터에 의하여 달성된다.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
상기 저장공간은 요홈의 단면 형상으로 이루어진 것을 특징으로 하는 냉각 기능을 갖는 로터에 의하여 달성된다.The storage space is achieved by the rotor having a cooling function, characterized in that made of a cross-sectional shape of the groove.
상기 저장공간은 로브의 측면에 형성된 것을 특징으로 하는 냉각 기능을 갖는 로터에 의하여 달성된다.The storage space is achieved by a rotor having a cooling function, characterized in that formed on the side of the lobe.
이와 같은 본 발명의 냉각 기능을 갖는 로터는 로터의 회전시 로터와 사이드 플레이트 사이에서 발생되는 마찰열을 냉각할 수 있도록 하여 베어링 및 기어박스, O-링 등에 마찰열이 전달되어 변형되는 것을 방지하며, 또한 마찰열에 의한 로터의 변형 및 파손을 방지하여 펌프가 멈추어 정지되는 것을 방지하도록 하는 효과가 있는 매우 유용한 발명이다.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.
도 1a 및 도 1b는 일반적인 회전용적형 펌프의 구조를 보여주는 분해사시도 및 결합단면도.1A and 1B are an exploded perspective view and a combined cross-sectional view showing the structure of a general positive displacement pump.
도 2는 본 발명의 기술이 적용된 로터의 구조를 보여주는 사시도.Figure 2 is a perspective view showing the structure of the rotor to which the technology of the present invention is applied.
도 3은 본 발명의 기술적 로터의 로브에 형성된 저장공간을 보여주는 측면도.Figure 3 is a side view showing the storage space formed in the lobe of the technical rotor of the present invention.
도 4는 로터와 사이드플레이트 사이로 인입된 유체의 작용을 보여주는 예시도.Figure 4 is an exemplary view showing the action of the fluid introduced between the rotor and the side plate.
이하 본 발명의 바람직한 실시예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.
회전용적형 펌프의 구조는 첨부도면 도 1에 도시된 바와 같이 흡입구와 토출구가 구비된 펌프케이스(100) 내부에는 유체를 이송시키는 한 쌍의 로터(200)가 설치되며, 상기 로터(200)의 회전축에는 베어링(300)이 축설되며 베어링(300)이 설치되는 회전축에는 축공이 구비된 사이드플레이트(400)가 끼워져 설치된 구조이다. As shown in the accompanying drawings, a pair of
이때 상기 로터(200)의 구조는 첨부도면 도 2 및 도 3에 도시된 바와 같이 몸체(210)의 양단으로 회전축(220)을 형성하고 상기 몸체(210)에 일체로 로브(230)가 일정한 간격으로 형성되며 상기 로브(230)에는 탄성재가 피복되어 형성된 코팅층(240)을 형성하여 이루어지되 몸체(210) 측면의 코팅층(240)에는 공급 및 배출되는 유체를 일시 저장하는 저장공간(250)을 형성하고 상기 저장공간(250)은 분할벽(270)에 의해 2개로 분할 형성되며 상기 각각의 저장공간(250)에는 로터(200)의 외부와 연결되는 유로(260)가 형성되어 이루어진 구조이다.At this time, the structure of the
상기 저장공간(250)은 요홈의 단면 형상으로 이루어진 것을 사용할 수 있으며, 상기 저장공간(250)은 로브(230)의 측면에 형성시켜 사용할 수 있다. 상기 유로(260)는 저장공간(250)의 상단 즉, 로브(230)의 끝부분 또는 회전축(220)이 위치한 안쪽에 상관없이 형성하여 사용할 수 있다.The
상기 저장공간(250)의 구조는 오목한 요홈의 단면을 형성하되 상기 공간을 수직 방향으로 분할하는 분할벽(270)으로 구분한다. 수직으로 분리시키는 이유는 유체 공급시 저압 상태이지만 배출시 고압상태로 변화되므로 상기 저압상태의 유체와 고압상태의 유체가 혼합되면 압력누수가 일어 남으로 이를 방지하기 위함이다.The structure of the
한편 상기 분할벽(270)의 구조는 첨부도면 도 3에 도시된 코팅층(240)의 표면과 동일한 면 높이를 형성시켜 사용할 수도 있으나 분할벽(270)은 저장공간(250)을 분할하는 효과를 얻는 기능도 있지만 사이드플레이트(400) 표면에 묻은 유체를 긁어내는 블레이드 역할도 수행한다.Meanwhile, the structure of the dividing
상기와 같은 기능을 갖는 본 발명의 펌프용 로터(200)는 첨부도면 도 4에 도시된 바와 같이 임의의 중신선 "O"를 중심으로 유체가 공급되는 쪽은 저압이고 로터(200)의 압축력에 의해 유체가 배출되는 쪽은 고압으로 상기 고압으로 압축하여 이송시키게 된다.The
모터의 회전에 의해 로터(200)가 서로 맞물림을 반복하면서 고속으로 회전하게 되는데 이 때 상기 로터의 고속회전시 누수를 방지하기 위해 사이드플레이트가 설치되어 있고 상기한 사이드플레이트와 로터 사이에서 누수가 발생되지 않도록 사이드플레이트 쪽으로 로터를 가압하여 밀착시킴으로써 누수는 방지되나 로터가 고속회전하게 됨으로 마찰열이 발생되며 상기한 마찰열은 베어링, 기어박스, O-링 등에 전달되어 수명을 단축시키게 된다.Due to the rotation of the motor, the
그러나 본 발명의 로터(200)에는 마찰열을 냉각시킬 수 있도록 공급되는 유체의 일부를 측면에 구비된 유로(260)를 통해 저장공간(250)으로 유체를 이동시키며 상기한 저장공간(250)으로 이동된 유체는 사이드플레이트와 접촉하게 되면서 냉각 및 윤활유 역할을 하게 된다.However, in the
상기 측면의 저장공간(250)으로 이동된 유체는 로터(200)의 측면과 사이드플레이트의 마찰에 의해 발생되는 마찰열을 냉각시키면서 로터의 회전시 윤활유 효과를 제공하게 되어 로터의 파손을 방지하게 된다.The fluid moved to the
상기 저장공간(250)은 첨부도면 도 4에 도시된 바와 같이 분리벽을 기준으로 유체의 공급쪽은 저압이 되고 배출구 쪽에 위치하는 저장공간은 고압이 된다. 따라서 저장공간은 저압-고압-저압 상태를 반복하게 된다. As shown in the accompanying drawings, in the
한편 상기 본 발명의 로터와 통상적인 로터의 온도를 측정하였더니 아래 표와 같았다.On the other hand, when the temperature of the rotor of the present invention and the conventional rotor was measured, it was shown in the table below.
펌프 제조사 : 주식회사 제이엠모터스 Pump Manufacturer : JM Motors Co., Ltd.
펌프모델 : P400Pump model: P400
용량 : 분당 400리터Capacity: 400 liters per minute
회전수 : 1,800RPMRotational speed: 1,800RPM
상기에서 알 수 있듯 유체를 로터의 측면으로 이동시키면 펌프 내부로 공급된 유체가 저장공간에 수용됨으로 마찰열이 냉각되는 것을 알 수 있었다.이와 같은 본 발명의 냉각 기능을 갖는 로터는 로터의 회전시 로터와 사이드 플레이트 사이에서 발생되는 마찰열을 냉각할 수 있도록 하여 베어링 및 기어박스, O-링 등에 마찰열이 전달되어 변형되는 것을 방지하며, 또한 마찰열에 의한 로터의 변형 및 파손을 방지하여 펌프가 멈추어 정지되는 것을 방지하도록 하는 효과가 있는 매우 유용한 발명이다.As can be seen from the above, when the fluid is moved to the side of the rotor, the frictional heat is cooled because the fluid supplied into the pump is accommodated in the storage space. 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.
[부호의 설명][Explanation of code]
100 : 펌프케이스 100: pump case
200 : 로터200: rotor
210 : 몸체 210: body
220 : 회전축220: rotation shaft
230 : 로브 230 : Robe
240 : 코팅층240: coating layer
250 : 저장공간 250: storage space
260 : 유로260: Euro
270 : 분할벽 270: dividing wall
300 : 베어링300: bearing
400 : 사이드플레이트400: side plate
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190159038A KR102163224B1 (en) | 2019-12-03 | 2019-12-03 | Rotor with cooling function |
| KR10-2019-0159038 | 2019-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021112327A1 true WO2021112327A1 (en) | 2021-06-10 |
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ID=72897166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2020/000223 Ceased WO2021112327A1 (en) | 2019-12-03 | 2020-01-07 | Rotor having cooling function |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102163224B1 (en) |
| WO (1) | WO2021112327A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102654609B1 (en) * | 2022-10-19 | 2024-04-08 | 전진건설로봇(주) | Rotating roter having cooling effect of sealing device |
| KR20250145800A (en) | 2024-03-29 | 2025-10-13 | 전진건설로봇(주) | Volumetric rotary pump using rotating rotor which increasing flow rate discharge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180299A (en) * | 1992-04-27 | 1993-01-19 | Feuling Engineering, Inc. | Roots type supercharger |
| JPH08121350A (en) * | 1994-10-28 | 1996-05-14 | Shimadzu Corp | Gear pump |
| 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 (en) * | 2017-08-29 | 2019-04-23 | 杭州电子科技大学 | A composite unpacked wrapped wear-resistant adhesive rotor |
-
2019
- 2019-12-03 KR KR1020190159038A patent/KR102163224B1/en active Active
-
2020
- 2020-01-07 WO PCT/KR2020/000223 patent/WO2021112327A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180299A (en) * | 1992-04-27 | 1993-01-19 | Feuling Engineering, Inc. | Roots type supercharger |
| JPH08121350A (en) * | 1994-10-28 | 1996-05-14 | Shimadzu Corp | Gear pump |
| 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 (en) * | 2017-08-29 | 2019-04-23 | 杭州电子科技大学 | A composite unpacked wrapped wear-resistant adhesive rotor |
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| KR102163224B1 (en) | 2020-10-08 |
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