STAND FUNCTIONING ON THE PRINCIPLE OF POWER RECIRCULATION FOR HYDRAULIC CYLINDERS ENDURANCE
The invention relates to a stand functioning with energy recovery on the principle of the recirculation of hydromechanical power for hydraulic cylinder endurance, the stand being an extension of the stand for the rotary displacement machines endurance, functioning on this principle, with mechanical...
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Format | Patent |
Language | English Romanian |
Published |
30.01.2012
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Abstract | The invention relates to a stand functioning with energy recovery on the principle of the recirculation of hydromechanical power for hydraulic cylinder endurance, the stand being an extension of the stand for the rotary displacement machines endurance, functioning on this principle, with mechanical compensation of power losses. According to the invention, the stand comprises an electromotor () with two driving heads whereto there are coupled a fixed positive displacement pump () which sucks in from an oil tank () and a fixed hydraulic engine (), a hydraulic testing cylinder () and a hydraulic load cylinder (), which are identical, have the rods fixed in a coupling () and may move between a limiter (), when the electromagnet () is switched in to the electrically-driven hydraulic distributor (), and another limiter (), when the electromagnet () is switched in to the distributor (), a direction valve () allowing the supply with oil from the tank () of the hydraulic engine () in the non-driven position of the hydraulic distributor (), four direction valves () which allow, in the electromagnet switching phase (), and in phase (), respectively, the oil supply of the rod chamber/load cylinder piston chamber, respectively, the discharge of the oil from the piston chamber/load cylinder rod chamber, a valve () for adjusting the test pressure through which the unconsumed oil is discharged into the tank (), said oil resulting as a difference between the actual output of the pump () and the actual output of the engine (), a pressure gauge () and an oil-water cooler ().
Invenţia se referă la un stand de anduranţă a cilindrilor hidraulici, care funcţionează cu recuperare de energie pe principiul reciclării de putere hidromecanică, standul fiind o extensie a standului de anduranţă a maşinilor volumice rotative care funcţionează pe acest principiu, cu compensarea mecanică a pierderilor de putere. Standul conform invenţiei este compus dintr-un electromotor () cu două capete de antrenare, la care sunt cuplate o pompă () volumică fixă, care aspiră dintr-un rezervor () de ulei, şi un motor hidraulic () fix, un cilindru () hidraulic de probare şi un cilindru () hidraulic de sarcină, identici, care au tijele fixate într-un cuplaj () şi se pot deplasa între un limitator (), când distribuitorului () hidraulic cu comandă electrică i se anclanşează electromagnetul (), şi un alt limitator (), când distribuitorului () i se anclanşează electromagnetul (), o supapă () de sens, care permite alimentarea cu ulei din rezervorul () motorului () hidraulic, în poziţia neacţionată a distribuitorului () hidraulic, patru supape de sens (), care permit în faza () de anclanşare a electromagnetului, respectiv, în cealaltă fază (), alimentarea cu ulei a camerei tijei/pistonului cilindrului de sarcină, respectiv, evacuarea uleiului din camera pistonului/tijei cilindrului de sarcină, o supapă () de reglare a presiunii de probare, prin care se descarcă în rezervor () uleiul neconsumat, rezultat ca diferenţă dintre debitul real al pompei () şi debitul real al motorului (), un manometru () şi un răcitor () ulei-apă. |
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AbstractList | The invention relates to a stand functioning with energy recovery on the principle of the recirculation of hydromechanical power for hydraulic cylinder endurance, the stand being an extension of the stand for the rotary displacement machines endurance, functioning on this principle, with mechanical compensation of power losses. According to the invention, the stand comprises an electromotor () with two driving heads whereto there are coupled a fixed positive displacement pump () which sucks in from an oil tank () and a fixed hydraulic engine (), a hydraulic testing cylinder () and a hydraulic load cylinder (), which are identical, have the rods fixed in a coupling () and may move between a limiter (), when the electromagnet () is switched in to the electrically-driven hydraulic distributor (), and another limiter (), when the electromagnet () is switched in to the distributor (), a direction valve () allowing the supply with oil from the tank () of the hydraulic engine () in the non-driven position of the hydraulic distributor (), four direction valves () which allow, in the electromagnet switching phase (), and in phase (), respectively, the oil supply of the rod chamber/load cylinder piston chamber, respectively, the discharge of the oil from the piston chamber/load cylinder rod chamber, a valve () for adjusting the test pressure through which the unconsumed oil is discharged into the tank (), said oil resulting as a difference between the actual output of the pump () and the actual output of the engine (), a pressure gauge () and an oil-water cooler ().
Invenţia se referă la un stand de anduranţă a cilindrilor hidraulici, care funcţionează cu recuperare de energie pe principiul reciclării de putere hidromecanică, standul fiind o extensie a standului de anduranţă a maşinilor volumice rotative care funcţionează pe acest principiu, cu compensarea mecanică a pierderilor de putere. Standul conform invenţiei este compus dintr-un electromotor () cu două capete de antrenare, la care sunt cuplate o pompă () volumică fixă, care aspiră dintr-un rezervor () de ulei, şi un motor hidraulic () fix, un cilindru () hidraulic de probare şi un cilindru () hidraulic de sarcină, identici, care au tijele fixate într-un cuplaj () şi se pot deplasa între un limitator (), când distribuitorului () hidraulic cu comandă electrică i se anclanşează electromagnetul (), şi un alt limitator (), când distribuitorului () i se anclanşează electromagnetul (), o supapă () de sens, care permite alimentarea cu ulei din rezervorul () motorului () hidraulic, în poziţia neacţionată a distribuitorului () hidraulic, patru supape de sens (), care permit în faza () de anclanşare a electromagnetului, respectiv, în cealaltă fază (), alimentarea cu ulei a camerei tijei/pistonului cilindrului de sarcină, respectiv, evacuarea uleiului din camera pistonului/tijei cilindrului de sarcină, o supapă () de reglare a presiunii de probare, prin care se descarcă în rezervor () uleiul neconsumat, rezultat ca diferenţă dintre debitul real al pompei () şi debitul real al motorului (), un manometru () şi un răcitor () ulei-apă. |
Author | ION GU DRAGO DANIEL B LAN IOAN POPESCU TEODOR COSTINEL DRUMEA PETRIN |
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DocumentTitleAlternate | STAND CU RECIRCULARE DE PUTERE PENTRU ANDURANŢA CILINDRILOR HIDRAULICI |
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Snippet | The invention relates to a stand functioning with energy recovery on the principle of the recirculation of hydromechanical power for hydraulic cylinder... |
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SubjectTerms | MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING |
Title | STAND FUNCTIONING ON THE PRINCIPLE OF POWER RECIRCULATION FOR HYDRAULIC CYLINDERS ENDURANCE |
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