WO2022134108A1 - Système de chemin d'huile hydraulique et machine hydraulique - Google Patents

Système de chemin d'huile hydraulique et machine hydraulique Download PDF

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Publication number
WO2022134108A1
WO2022134108A1 PCT/CN2020/139706 CN2020139706W WO2022134108A1 WO 2022134108 A1 WO2022134108 A1 WO 2022134108A1 CN 2020139706 W CN2020139706 W CN 2020139706W WO 2022134108 A1 WO2022134108 A1 WO 2022134108A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
stirring
hydraulic
tank
main
Prior art date
Application number
PCT/CN2020/139706
Other languages
English (en)
Chinese (zh)
Inventor
陈国华
黎永杰
张悦
Original Assignee
佛山市康思达液压机械有限公司
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 佛山市康思达液压机械有限公司 filed Critical 佛山市康思达液压机械有限公司
Priority to PCT/CN2020/139706 priority Critical patent/WO2022134108A1/fr
Publication of WO2022134108A1 publication Critical patent/WO2022134108A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid

Definitions

  • the invention relates to the technical field of hydraulic machines.
  • the hydraulic oil circuit system of the hydraulic press usually includes the main oil tank and the auxiliary oil tank.
  • the auxiliary oil tank is located at the top of the hydraulic press, and the main oil tank is located at the bottom of the hydraulic press.
  • the hydraulic oil circulates in the hydraulic oil circuit system. From the auxiliary fuel tank to the main fuel tank through the fuel pipe.
  • the auxiliary fuel tank Since the auxiliary fuel tank is on the top and the main fuel tank is on the bottom, there is a height difference between the two. Therefore, when the oil flows from the auxiliary fuel tank to the main fuel tank through the oil pipeline, its potential energy will be converted into kinetic energy, and the flow rate of the oil will become faster and faster. The flow rate peaks when it joins with the oil in the main tank. In this way, on the one hand, the oil is continuously accelerated in the process of flowing in the oil pipeline. The closer the oil is to the outlet at the end of the oil pipeline, the more dispersed it is. In addition to its continuous acceleration, it is very easy to mix a large amount of gas.
  • the oil mixed with a large amount of gas flows into the main After the oil tank and the oil in the main oil tank are combined, a large number of air bubbles will be brought into the oil in the main oil tank; A large shock, resulting in a large number of air bubbles in the oil in the main tank. After several cycles of use, the generation speed of air bubbles is much faster than the natural dissipation speed, and more and more air bubbles in the main fuel tank will be sucked in by the oil pump, resulting in abnormal noise of the oil pump and affecting the life of the oil pump.
  • the present invention proposes a hydraulic oil circuit system and a hydraulic press, which can reduce the bubble oil mixed with oil and gas.
  • the present invention provides the following technical solutions.
  • the hydraulic oil circuit system includes the main oil tank, the auxiliary oil tank and the oil delivery pipe.
  • the position of the auxiliary oil tank is higher than the main oil tank.
  • the oil inlet at the head of the oil delivery pipe is connected to the auxiliary oil tank, and the oil outlet at the end of the oil delivery pipe is connected to the main oil tank.
  • Stirring and defoaming mechanism, the defoaming and defoaming mechanism includes a flow guide, which is arranged in the oil pipeline and extends into the main fuel tank, so that the oil flowing in the oil pipeline can adhere to the surface of the guide and flow into the main tank along the guide
  • the stirring and defoaming mechanism includes a stirring impeller.
  • the stirring impeller is set in the main oil tank and can be rotated to eliminate air bubbles in the oil in the main oil tank by stirring.
  • the end of the guide member is connected to the stirring impeller. It can be rotated under the impact of liquid to drive the stirring impeller to rotate.
  • the oil can flow in the oil pipe and flow in the diversion member, which can reduce the flow rate, reduce the dispersion of the oil, and reduce the The impact on the oil in the main tank, thereby reducing the generation of air bubbles.
  • the stirring and defoaming mechanism to stir the oil in the main oil tank to eliminate the oil bubbles in the main oil tank, further reduce the air bubbles in the oil, so as to protect the oil pump and prolong the life of the oil pump.
  • the guide member can be rotated under the impact of the oil, thereby driving the stirring impeller to rotate, so that it is unnecessary to provide a power mechanism for the stirring impeller, thereby simplifying the structure.
  • the stirring impeller includes a bracket and a stirring blade, the stirring blade and the bracket are movably connected, and the stirring blade is movable relative to the bracket to reduce the resistance of the oil when the stirring impeller is started.
  • the stirring impeller stirs the oil in the oil, and the oil will give the stirring impeller resistance, especially when starting, because there is no inertia in the movement, it needs a larger driving force when starting.
  • the stirring impeller is driven by the deflector, and the energy comes from the potential energy of the oil flowing in the oil pipeline.
  • the stirring blade is set to be movable, so that when the stirring impeller is started, the stirring blade has a backward movement to reduce the force surface. , thereby reducing the resistance of the oil and making the stirring impeller easier to start.
  • the stirring blade can rotate around an axis in a plane parallel to the horizontal plane, or can rotate around an axis perpendicular to the horizontal plane.
  • the rotation angle of the stirring blade does not exceed 45 degrees.
  • the helical guide vane can make the guide vane form a coherent whole piece, allowing the oil to flow into the main oil tank continuously along the guide piece, and in this way, the potential energy conversion of the oil can be transferred as much as possible, providing more energy to the stirring impeller. great power.
  • the guide member further comprises a center column, the guide vanes surround the center column and are fixed to the center column, and the end of the center column is connected to the stirring impeller.
  • the oil pipeline is provided with a narrowing section, and the inner cavity used for conveying oil in the narrowing section is gradually narrowed along the oil flow direction, so as to reduce the oil flow rate and make the oil flow. Oil pools.
  • Setting the narrowing section can reduce the flow rate of the oil when it flows through the narrowing section, and because the space becomes smaller, the oil will re-converge, and the air bubbles mixed into the oil will be squeezed out, which can reduce the air bubbles, and can Reduce the impact on the oil in the main oil tank and reduce the air bubbles generated by the oil in the main oil tank.
  • the narrowing section is located at the end of the oil pipeline, and the flow guide is located in the narrowing section.
  • the constricted section is located at the end of the oil pipeline, and the oil flows into the main fuel tank after the speed of the constricted section is reduced, so as to prevent the oil from leaving the constricted section and then accelerates again and then flows into the main fuel tank.
  • the deflector is located in the narrowed section. Under the combined action of the deflector and the narrowed section, the flow rate of the oil when it flows into the main oil tank can be minimized, and the oil is re-converged in the narrowed section. It can fill the periphery of the deflector, provide more potential energy conversion for the deflector, and enhance the driving force of the deflector to the stirring impeller.
  • the oil outlet of the oil pipe is strip-shaped to increase the oil output flow.
  • the strip-shaped oil outlet narrows the inner cavity of the oil pipe, plays the role of squeezing air bubbles out of the oil, and ensures the oil output flow of the oil outlet, preventing the oil flow from being too small and affecting the normal operation of the hydraulic press. Work.
  • a hydraulic press comprising the hydraulic oil circuit system according to any one of technical solutions 1-9.
  • Fig. 1 is the structural representation of hydraulic oil circuit system and hydraulic press of the present invention
  • Fig. 2 is the structural representation of stirring impeller of the present invention
  • Fig. 3 is the combined state schematic diagram of stirring blade and support of the present invention.
  • FIG. 4 is a schematic cross-sectional view of the end of the oil pipeline and the diversion and bubble reduction mechanism of the present invention
  • Fig. 5 is the structural representation of the oil outlet of the oil pipeline of the present invention.
  • Main fuel tank 1 Auxiliary fuel tank 2; Oil pipeline 3, oil outlet 31;
  • the hydraulic oil circuit system includes a main oil tank 1, an auxiliary oil tank 2 and an oil delivery pipe 3.
  • the position of the auxiliary oil tank 2 is higher than that of the main oil tank 1.
  • the oil inlet port at the head end of the oil delivery pipe 3 is connected to the auxiliary oil tank 2.
  • 31 is connected to the main fuel tank 1, and also includes a flow defoaming mechanism 4 and a stirring defoaming mechanism 5.
  • the flow defoaming mechanism 4 includes a flow guide, which is arranged in the oil pipeline 3 and extends into the main oil tank 1 for the oil pipeline. 3
  • the oil flowing inside adheres to the surface of the flow guide and flows into the main oil tank 1 along the flow guide.
  • the stirring and defoaming mechanism 5 includes a stirring impeller.
  • the stirring impeller is set in the main oil tank 1 and can be rotated to eliminate the main oil tank 1 by stirring.
  • the end of the guide element is connected to the stirring impeller, and the guide element can rotate under the impact of the oil flowing in the oil pipe 3 to drive the stirring impeller to rotate.
  • the oil can be attached to the diversion member in the oil pipeline 3 to flow, which can reduce the flow rate, reduce the dispersion of the oil, and reduce the impact on the main oil tank 1 . The impact of the oil, thereby reducing the generation of air bubbles.
  • the stirring and defoaming mechanism 5 can stir the oil in the main oil tank 1 to eliminate the oil bubbles in the main oil tank 1, and further reduce the air bubbles in the oil, so as to protect the oil pump and prolong the life of the oil pump.
  • the guide member can be rotated under the impact of the oil, thereby driving the stirring impeller to rotate, so that it is unnecessary to provide a power mechanism for the stirring impeller, thereby simplifying the structure.
  • the stirring impeller includes a bracket 51 and a stirring blade 52, the stirring blade 52 is movably connected to the bracket 51, and the stirring blade 52 is movable relative to the bracket 51 to reduce the resistance of the oil when the stirring impeller is started.
  • the stirring impeller stirs the oil in the oil, and the oil will give the stirring impeller resistance, especially when starting, because there is no inertia in the movement, it needs a larger driving force when starting.
  • the stirring impeller is driven by the deflector, and the energy comes from the potential energy of the oil flowing in the oil pipeline 3.
  • the stirring blade 52 is set to be movable, so that when the stirring impeller is started, the stirring blade 52 has a backward movement, reducing the Therefore, the resistance of the oil is reduced and the stirring impeller is easier to start, but the rotation angle of the stirring blade 52 does not exceed 45 degrees.
  • the stirring blade 52 rotates around an axis in a plane parallel to the horizontal plane, but in other embodiments, the stirring blade 52 can also rotate around an axis that is perpendicular to the horizontal plane.
  • the flow-guiding and foam-reducing mechanism 4 includes a flow-guiding member, and the flow-guiding member includes a guide vane 41 , and the guide vane 41 is helical.
  • the helical guide vane 41 allows the guide vane 41 to form a coherent whole piece, allowing the oil to flow into the main oil tank 1 along the guide piece, and in this way, the potential energy conversion of the oil can be transferred as much as possible, which can be used for stirring.
  • the impeller provides more power.
  • the guide member further includes a center column 42, the guide vane 41 surrounds the center column 42 and is fixed with the center column 42, and the end of the center column 42 is connected to the stirring impeller.
  • the oil pipeline 3 is provided with a narrowing section, and the inner cavity in the narrowing section for transporting the oil gradually narrows along the oil flow direction, so as to reduce the flow rate of the oil and make the oil converge.
  • Setting the narrowing section can reduce the flow rate of the oil when it flows through the narrowing section, and because the space becomes smaller, the oil will re-converge, and the air bubbles mixed into the oil will be squeezed out, which can reduce the air bubbles, and can Reduce the impact on the oil in the main oil tank 1 and reduce the bubbles generated by the oil in the main oil tank 1.
  • the narrowed section is located at the end of the oil pipeline 3, and the flow guide is located in the narrowed section.
  • the narrowed section is located at the end of the oil pipeline 3, and the oil flows into the main oil tank 1 after the speed of the narrowed section is reduced, so as to prevent the oil from leaving the narrowed section and then accelerates again and then flows into the main oil tank 1.
  • the deflector is located in the constricted section. Under the combined action of the deflector and the constricted section, the flow rate of the oil when flowing into the main oil tank 1 can be minimized, and the oil will be re-converged in the constricted section. , which can fill the periphery of the deflector, provide more potential energy conversion for the deflector, and enhance the driving force of the deflector to the stirring impeller.
  • the oil outlet 31 of the oil delivery pipe 3 is strip-shaped to increase the oil outlet flow.
  • the strip-shaped oil outlet 31 narrows the inner cavity of the oil pipeline 3, plays the role of squeezing air bubbles out of the oil, and ensures the oil outlet flow of the oil outlet 31 to avoid the influence of too small oil flow. The normal operation of the hydraulic press.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

Un système de chemin d'huile hydraulique, qui se rapporte au domaine technique des machines Le système de chemin d'huile hydraulique comprend un réservoir d'huile principal (1), un réservoir d'huile auxiliaire (2) et un tuyau de transport d'huile (3), le réservoir d'huile auxiliaire étant plus haut que le réservoir d'huile principal en position, une entrée d'huile au niveau de l'extrémité de tête du tuyau de transport d'huile est reliée au réservoir d'huile auxiliaire, et une sortie d'huile (31) au niveau de l'extrémité de queue du tuyau de transport d'huile est reliée au réservoir d'huile principal. Le système de chemin d'huile hydraulique comprend en outre un mécanisme de guidage d'écoulement et de démoussage (4) et un mécanisme d'agitation et de démoussage (5), le mécanisme de guidage d'écoulement et de démoussage comprenant un élément de guidage d'écoulement, l'élément de guidage d'écoulement étant disposé à l'intérieur du tuyau de transport d'huile et s'étendant dans le réservoir d'huile principal, de façon à permettre à l'huile s'écoulant dans le tuyau de transport d'huile d'être collée à la surface de l'élément de guidage d'écoulement et à s'écouler dans le réservoir d'huile principal le long de l'élément de guidage d'écoulement ; et le mécanisme d'agitation et de démoussage comprend une roue d'agitation, la roue d'agitation étant disposée dans le réservoir d'huile principal et pouvant tourner de façon à éliminer les bulles dans l'huile dans le réservoir d'huile principal par agitation, l'extrémité de queue de l'élément de guidage d'écoulement étant reliée à la roue d'agitation, et l'élément de guidage d'écoulement étant apte à tourner sous l'impact de l'huile s'écoulant dans le tuyau de transport d'huile de façon à entraîner la roue d'agitation à tourner. L'invention concerne en outre une machine hydraulique. Le système de chemin d'huile hydraulique peut réduire la génération de bulles, et est pourvu du mécanisme d'agitation et de démoussage de façon à réduire davantage les bulles dans l'huile, de telle sorte qu'une pompe à huile est protégée.
PCT/CN2020/139706 2020-12-25 2020-12-25 Système de chemin d'huile hydraulique et machine hydraulique WO2022134108A1 (fr)

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PCT/CN2020/139706 WO2022134108A1 (fr) 2020-12-25 2020-12-25 Système de chemin d'huile hydraulique et machine hydraulique

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PCT/CN2020/139706 WO2022134108A1 (fr) 2020-12-25 2020-12-25 Système de chemin d'huile hydraulique et machine hydraulique

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423396A2 (fr) * 1989-10-06 1991-04-24 Mitsubishi Oil Company, Limited Dispositif d'élimination de bulles de liquides
JPH08318103A (ja) * 1995-05-23 1996-12-03 Oopasu:Kk 気泡除去システム及び方法
JP2010216608A (ja) * 2009-03-18 2010-09-30 Caterpillar Sarl 作動油の気泡除去回路
CN201665025U (zh) * 2010-04-09 2010-12-08 江苏国力锻压机床有限公司 液压机上液压垫无级可调恒压控制油路系统
JP2013002031A (ja) * 2011-06-10 2013-01-07 Hitachi Constr Mach Co Ltd 作業機械の気泡除去装置
JP2013189781A (ja) * 2012-03-13 2013-09-26 Hitachi Constr Mach Co Ltd 建設機械の気泡除去システム
CN103967850A (zh) * 2014-05-07 2014-08-06 宁波腾隆户外用品有限公司 用于液压系统的油箱总成及其使用方法
CN104023807A (zh) * 2012-10-29 2014-09-03 株式会社Tnk 分离并去除液体中气泡的循环系统
KR20150122836A (ko) * 2014-04-23 2015-11-03 주식회사 엔씨에스 기포제거장치
CN106838621A (zh) * 2016-12-30 2017-06-13 武汉泰安晶液态金属科技有限公司 一种真空注液装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423396A2 (fr) * 1989-10-06 1991-04-24 Mitsubishi Oil Company, Limited Dispositif d'élimination de bulles de liquides
JPH08318103A (ja) * 1995-05-23 1996-12-03 Oopasu:Kk 気泡除去システム及び方法
JP2010216608A (ja) * 2009-03-18 2010-09-30 Caterpillar Sarl 作動油の気泡除去回路
CN201665025U (zh) * 2010-04-09 2010-12-08 江苏国力锻压机床有限公司 液压机上液压垫无级可调恒压控制油路系统
JP2013002031A (ja) * 2011-06-10 2013-01-07 Hitachi Constr Mach Co Ltd 作業機械の気泡除去装置
JP2013189781A (ja) * 2012-03-13 2013-09-26 Hitachi Constr Mach Co Ltd 建設機械の気泡除去システム
CN104023807A (zh) * 2012-10-29 2014-09-03 株式会社Tnk 分离并去除液体中气泡的循环系统
KR20150122836A (ko) * 2014-04-23 2015-11-03 주식회사 엔씨에스 기포제거장치
CN103967850A (zh) * 2014-05-07 2014-08-06 宁波腾隆户外用品有限公司 用于液压系统的油箱总成及其使用方法
CN106838621A (zh) * 2016-12-30 2017-06-13 武汉泰安晶液态金属科技有限公司 一种真空注液装置

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