IT202100002324U1 - PATENT FOR THE USE OF A PANTOGRAPH LINKAGE AND AN ACCELERATED PISTON ON DEMOLITION CLAMPS - Google Patents
PATENT FOR THE USE OF A PANTOGRAPH LINKAGE AND AN ACCELERATED PISTON ON DEMOLITION CLAMPS Download PDFInfo
- Publication number
- IT202100002324U1 IT202100002324U1 IT202021000002324U IT202100002324U IT202100002324U1 IT 202100002324 U1 IT202100002324 U1 IT 202100002324U1 IT 202021000002324 U IT202021000002324 U IT 202021000002324U IT 202100002324 U IT202100002324 U IT 202100002324U IT 202100002324 U1 IT202100002324 U1 IT 202100002324U1
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- IT
- Italy
- Prior art keywords
- demolition
- piston
- chamber
- pantograph
- clamps
- Prior art date
Links
- 210000000078 claw Anatomy 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Description
DESCRIZIONE DESCRIPTION
Pantografo: Pantograph:
Il cinematismo a pantografo ? composto da due bracci contrapposti che lavorano scorrendo lungo l?asse verticale della pinza/cesoia. Pantograph kinematics ? composed of two opposing arms that work by sliding along the vertical axis of the pliers/shear.
Durante la corsa le spinte assiali contrapposte aumentano proporzionalmente all?aumentare dell?angolo tra i due bracci. L?angolo minore del pantografo determina la potenza minima della macchina Fig 1 , con i bracci allineati prossimi ai 180? otteniamo la massima potenza di chiusura della macchina Fig 2 . During the stroke, the opposing axial thrusts increase proportionally as the angle between the two arms increases. The smallest angle of the pantograph determines the minimum power of the machine Fig 1 , with the arms aligned close to 180? we obtain the maximum closing power of the machine Fig 2 .
Sistema by-pass per accelerare la chiusura del cilindro: By-pass system to speed up cylinder closing:
Tutti i cilindri idraulici sono realizzati con una camera di spinta ( Fig.4-B )che possiede un volume circa triplo rispetto al volume necessario per richiamare lo stelo alla posizione di partenza( Fig.4-C ). All hydraulic cylinders are made with a thrust chamber (Fig.4-B) which has a volume approximately three times the volume required to return the rod to its starting position (Fig.4-C).
Questa caratteristica limita notevolmente la velocit? di rientro dello stelo poich? in pochi secondi si cerca di far tornare al serbatoio una quantit? eccessiva di olio contenuto nella camera di spinta. This feature significantly limits the speed? return of the stem since? in a few seconds you try to return to the tank a quantity? excessive amount of oil contained in the thrust chamber.
Normalmente il limite di velocit? ? dovuto alle perdite di carico della linea idraulica dell?escavatore che ? dimensionata ad esempio per 200 litri minuto. Cercare di espellere il volume di olio della camera di spinta del cilindro in pochi secondi aumenta notevolmente la quantit? di liquido da portare al serbatoio, si pu? arrivare tranquillamente a 1000 litri al minuto che non possono passare nella linea di scarico dimensionata per portate molto pi? piccole. Normally the speed limit? ? due to the load losses of the hydraulic line of the excavator which ? sized for example for 200 liters per minute. Trying to expel the volume of oil from the cylinder thrust chamber in a few seconds significantly increases the quantity? of liquid to bring to the tank, you can? get easily to 1000 liters per minute that can not pass in the discharge line sized for flow rates much more? small.
Questo ? il motivo per cui tutte le pinze sono molto lente durante la fase di apertura delle chele. This ? the reason why all the grippers are very slow during the opening phase of the claws.
Ciclo di funzionamento: Duty cycle:
- Durante la fase di spinta (apertura del cilindro) l?olio passa attraverso la linea di mandata all?interno della camera B Fig.4 come un normale cilindro standard. - During the thrust phase (cylinder opening) the oil passes through the delivery line inside the chamber B Fig.4 like a normal standard cylinder.
In questa fase, le camere C e D si svuotano tramite la linea di ritorno. In this phase, chambers C and D are emptied via the return line.
- Nella fase contraria (rientro), l?olio viene inviato tramite il tubetto A all?interno della camera D (con cilindrata molto piccola per ottenere velocit?) che provvede a richiamare lo stelo. - In the opposite phase (return), the oil is sent via tube A into chamber D (with a very small displacement to obtain speed) which retracts the piston rod.
Durante questa fase, l?olio in uscita dalla camera B, viene inviato alla linea di ritorno, nonch?, tramite la valvola pilotata G, aspirato dalla camera C. During this phase, the oil leaving chamber B is sent to the return line and, via the pilot valve G, sucked from chamber C.
Il volume della camera C ? dimensionato in moto che aspiri la maggior parte di portata uscente dalla camera B per non sovraccaricare la linea di ritorno e frenare il cilindro. The volume of chamber C ? sized for a motion that draws most of the outgoing flow from chamber B so as not to overload the return line and brake the cylinder.
- La valvolina di massima pressione F serve qualora sia necessaria tutta la forza del pistone in chiusura e permette all?olio di passare dalla camera dalla camera D alla camera C al raggiungimento di una predeterminata pressione. - La valvola di non ritorno pilotata H permette il passaggio dell?olio dalla camera C alla linea di ritorno. - The maximum pressure valve F is used when all the force of the piston is required when closing and allows the oil to pass from the chamber from chamber D to chamber C when a predetermined pressure is reached. - The piloted non-return valve H allows the oil to pass from chamber C to the return line.
- La camera E ? semplicemente un volume di scorrimento dello stantuffo comunicante con l?esterno tramite un filtro anti polvere e condensa. - Room E ? simply a sliding volume of the piston communicating with the outside via an anti-dust and condensation filter.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT202021000002324U IT202100002324U1 (en) | 2021-05-03 | 2021-05-03 | PATENT FOR THE USE OF A PANTOGRAPH LINKAGE AND AN ACCELERATED PISTON ON DEMOLITION CLAMPS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT202021000002324U IT202100002324U1 (en) | 2021-05-03 | 2021-05-03 | PATENT FOR THE USE OF A PANTOGRAPH LINKAGE AND AN ACCELERATED PISTON ON DEMOLITION CLAMPS |
Publications (1)
Publication Number | Publication Date |
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IT202100002324U1 true IT202100002324U1 (en) | 2022-11-03 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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IT202021000002324U IT202100002324U1 (en) | 2021-05-03 | 2021-05-03 | PATENT FOR THE USE OF A PANTOGRAPH LINKAGE AND AN ACCELERATED PISTON ON DEMOLITION CLAMPS |
Country Status (1)
Country | Link |
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IT (1) | IT202100002324U1 (en) |
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2021
- 2021-05-03 IT IT202021000002324U patent/IT202100002324U1/en unknown
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