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EP3222179A1 - Hydraulische pumpeneinrichtung zum gelegentlichen gebrauch - Google Patents

Hydraulische pumpeneinrichtung zum gelegentlichen gebrauch Download PDF

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Publication number
EP3222179A1
EP3222179A1 EP17020108.1A EP17020108A EP3222179A1 EP 3222179 A1 EP3222179 A1 EP 3222179A1 EP 17020108 A EP17020108 A EP 17020108A EP 3222179 A1 EP3222179 A1 EP 3222179A1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
pumping device
pump
driving means
rotary
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.)
Withdrawn
Application number
EP17020108.1A
Other languages
English (en)
French (fr)
Inventor
Luca Pigo'
Simone Pigo'
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FIU20194152U priority Critical patent/FI12666U1/en
Publication of EP3222179A1 publication Critical patent/EP3222179A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/02—Control of, monitoring of, or safety arrangements for, machines or engines specially adapted for several machines or engines connected in series or in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
    • 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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • 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

Definitions

  • the present invention relates to a hydraulic pumping device for occasional use in which the device is installed on a simple hydraulic circuit such as for the movement of one or two hydraulic cylinder/cylinders for the occasional movement of the apparatus or machinery in which it is/they are installed.
  • the device is provided for manual and/or facilitated driving.
  • the prior art comprises various constructive solutions in which one associates, in a small hydraulic circuit, for the driving of one or a few cylinders, a reservoir with a manual, generally reciprocating, pump, and a rotary pump, mechanically driven by means of an electric motor installed on the hydraulic control unit obtained from the combination in one single device of the reservoir and of the two pumps, along with the hydraulic valves which are necessary to control said hydraulic circuit.
  • a dual-purpose device for the manual or hydraulic driving of a hydraulic cylinder is known from the document CN2823627Y .
  • a manual pump is connected to said cylinder, sucking from a tank, by means of a slide valve for the control of the dual-purpose action of the cylinder;
  • this simple circuit is connected, in the branches of connection to said hydraulic cylinder, to a hydraulic supply circuit from said tank to the cylinder with a gear rotary pump driven by a reversible electric motor; that is to say, the driving of the hydraulic cylinder is prevailing with the electric motor and only in case of power failure, that is to say, if one is not able to normally use the circuit with the electric motor, the driving occurs manually.
  • a hydraulic control unit which is provided with a manual pump, a reciprocating pump driven by a compressed air piston and with an electric motor that drives a hydraulic positive-displacement pump to supply the hydraulic circuit to which this control unit is connected;
  • the aim dealt with consists in providing a user with versatility of use of the control unit using electric or pneumatic power supply where available or, otherwise, the usual mechanical driving by the user's arms. Therefore, for a correct use of the control unit, the latter must be used where there is an electricity network or a pressurized air network to prevent the operator from operating manually the manual piston hydraulic pump.
  • the document WO 00/68063 A1 discloses a hydraulic cylinder supply system for lifting the cab of a truck and carry out mechanical interventions in the members of the truck itself.
  • These trucks are provided with a hydraulic system for lifting the cab and with hydraulic connections to an external hydraulic circuit present in the workshop.
  • a version of the hydraulic circuit is provided in which an electric motor, actuating a pump, both installed on the truck, carries out the necessary movement of the cab by means of said hydraulic driving.
  • said installed pump can be controlled from outside by a rotary actuator like a drill or screwdriver, battery-operated as well; said hydraulic driving for lifting the cab being able to be performed with the usual hydraulic jack present in the truck for changing tires.
  • waste collection parks that is, the so-called waste separation and recycling areas, when these are subdivided by type and the parks are small-sized but are provided with containers or large cases with a cover openable/closable with hydraulic cylinder/cylinders, so the driving of the cylinders occurs upon opening the cover of each container and the closing occurs upon complete filling of the container or upon replacing the latter for turnover with transport towards the disposal place or, for specific types of waste, to the place for recycling.
  • the use deriving therefrom is very different from the use provided in the prior art document, that is to say, the driving occurs rarely, that is to say, occasionally, even if the covers of the containers have large masses so as to be able to be moved only with one or two cylinders and a specific hydraulic circuit, very simple indeed, but always to be connected to the cylinders, in order to be able to operate, to control, the cover at the required moment after or before the movement of the container from the waste collection park or waste separation and recycling area.
  • the technical problem that is at the basis of the present invention consists in providing a hydraulic pumping device for occasional use in which the resident and installed circuit connected to the hydraulic cylinder/cylinders is versatile and cheap, but enables an activation of the hydraulic device without generating in the user too much effort and/or long operating times, that is to say, it must be fast also in the movement of hydraulic systems with non-minimum volumes of pumped fluid.
  • An additional and further aim of the present invention consists in enabling its use also in places without electrical power supply.
  • a hydraulic pumping device for occasional use, comprising a reservoir of hydraulic liquid; a first manually-driven reciprocating pump; a second mechanically-driven rotary pump; at least one intake filter and control valves for controlling the delivery and the return from or to the controlled hydraulic circuit to which the hydraulic pumping device is connected; characterised in that said second mechanically-driven rotary pump is of the volumetric type with internal rotating members, provided with an end of the rotary drive shaft coming out of the casing of the device; the shaft end being provided with an axial coupling for rotary control; a mechanical rotation driving means driving said second rotary pump when connected with its mandrel to said axial coupling.
  • said mechanical driving means consists of an electric drill provided with a power supply battery.
  • said mechanical driving means consists of an electric screwdriver provided with a power supply battery.
  • said mechanical driving means consists of a pneumatic screwdriver provided with a reservoir for compressed air.
  • said mechanical driving means consists of a pneumatic drill provided with a reservoir for compressed air.
  • FIGS 1 , 3 and 4 show the embodiment applied to the apparatus or machine that needs to perform the hydraulic movement of its own hydraulic cylinders.
  • a manual pump 1 sucks the hydraulic liquid from a reservoir 2 by means of a filter 3; the delivery duct 4 is directly connected 5 to the hydraulic cylinder (not shown); between the filter 3, the manual pump 1 and the delivery duct 4 there are non-return valves 6, 7 and 8 for preventing the backflow of the hydraulic liquid; in the connection point, between the non-return valves 7 and 8 a maximum pressure valve 9 is also connected as well as the supply of hydraulic liquid received from the rotary hydraulic pump 10 with external mechanical driving; this rotary pump, too, has in the delivery branch 11 a non-return valve 12; the rotary pump 10 sucks by means of a specific filter 13 the hydraulic liquid from the reservoir 2.
  • the hydraulic device according to the invention is depicted with a mechanical means that applies the rotary action to the shaft end 21 of the rotary hydraulic pump 10.
  • the means is depicted as a drill or screwdriver 22 provided with an electric motor supplied by an electric battery, not shown here, but, as known, directly present on the mechanical means itself.
  • the mandrel 23 of the drill or screwdriver 22 being provided with an axial coupling 24 for the coupling on the shaft end 21 of the rotary hydraulic pump 10.
  • the application of the hydraulic pumping device for occasional use occurs by installing the latter in the machinery, or in another means that needs occasional movement.
  • the device provided by the invention has only one rotary hydraulic pump 10 mounted in parallel to the manual pump 1.
  • the cost of this variation with respect to the usually installed system is very low, it being sufficient to mount a gear pump as a rotary hydraulic pump.
  • the rotary hydraulic pump 10 has a displacement that is correlated to the type of driving provided by the drill or screwdriver 22.
  • the operator Upon activation the operator has two possibilities, the usual manual driving or the mechanized driving by inserting the mandrel 23 in coupling with the shaft end 22 of the rotary hydraulic pump 10.
  • the operator can use the energy stored in the battery of said drill or screwdriver and, by performing the action of reaction to the counter-rotation of the handle only, transfer the rotary mechanical energy to the rotary hydraulic pump 10, so that it can pump the necessary amount of hydraulic liquid into the hydraulic circuit through the connection 5, if towards single-purpose cylinder/cylinders, or through the ducts 18-19, if the driving occurs for double-acting cylinder/cylinders.
  • the drill or screwdriver 22 can be detached and inserted in another device according to the invention of a further hydraulic system, or container, which needs movement. The use of these subsequent movements can continue until the battery has sufficient energy for driving.
  • a pneumatic motor or the like which operates with the air pressure stored in a mobile reservoir that the user carries around as he/she performs in sequence the actions of rotation of hydraulic devices according to the invention.
  • the pneumatic drive although requiring larger size and mass with respect to said battery-operated drill or screwdriver 22, also allows to safely drive small hydraulic circuits in environments or places that are at risk of fire or explosion.
  • a pneumatically-operated drill or screwdriver can be used in the driving phase of the rotary mechanical driven pump, when it is adequately supplied by a compressed air distribution network, if available in the area in which the device according to the invention is used.
  • rotary volumetric pumps with screws, lobes or the like in addition to gears, which are advantageous due to their low cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Fluid-Pressure Circuits (AREA)
EP17020108.1A 2016-03-23 2017-03-21 Hydraulische pumpeneinrichtung zum gelegentlichen gebrauch Withdrawn EP3222179A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FIU20194152U FI12666U1 (en) 2016-03-23 2017-03-21 Hydraulic pumping device for temporary use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUA2016A001928A ITUA20161928A1 (it) 2016-03-23 2016-03-23 Dispositivo di pompaggio idraulico ad uso saltuario

Publications (1)

Publication Number Publication Date
EP3222179A1 true EP3222179A1 (de) 2017-09-27

Family

ID=56203871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17020108.1A Withdrawn EP3222179A1 (de) 2016-03-23 2017-03-21 Hydraulische pumpeneinrichtung zum gelegentlichen gebrauch

Country Status (3)

Country Link
EP (1) EP3222179A1 (de)
FI (1) FI12666U1 (de)
IT (1) ITUA20161928A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988981A (zh) * 2017-05-15 2017-07-28 广州供电局有限公司 手摇泵
CN112240326A (zh) * 2020-11-04 2021-01-19 长春一东汽车零部件制造有限责任公司 配合差速式油缸的电动泵
EP3967886A1 (de) * 2020-09-14 2022-03-16 Kesseböhmer Holding KG Gasfedersystem für einen höhenverstellbaren tisch, höhenverstellbarer tisch und verfahren zum betreiben des gasfedersystems
DE102022201368A1 (de) 2022-02-10 2023-08-10 Robert Bosch Gesellschaft mit beschränkter Haftung Pumpvorrichtung mit Kupplung für Antriebsvorrichtung
EP4647601A1 (de) * 2024-05-09 2025-11-12 Lutz Pumpen GmbH Pumpe, verfahren zum betrieb einer solchen und verwendung eines bohrschraubers hierfür

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063624A (en) * 1990-05-08 1991-11-12 Stryker Corporation Manual/electric twin jack bed
WO2000068063A1 (en) * 1999-05-10 2000-11-16 Actuant Corporation Vehicle with a tiltable cab
CN201963631U (zh) * 2011-02-22 2011-09-07 马兆林 便携式手动、气动、电动微型液压泵
CN204752184U (zh) * 2015-07-17 2015-11-11 晋城市金菲机电有限公司 一种多功能加油车

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063624A (en) * 1990-05-08 1991-11-12 Stryker Corporation Manual/electric twin jack bed
WO2000068063A1 (en) * 1999-05-10 2000-11-16 Actuant Corporation Vehicle with a tiltable cab
CN201963631U (zh) * 2011-02-22 2011-09-07 马兆林 便携式手动、气动、电动微型液压泵
CN204752184U (zh) * 2015-07-17 2015-11-11 晋城市金菲机电有限公司 一种多功能加油车

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106988981A (zh) * 2017-05-15 2017-07-28 广州供电局有限公司 手摇泵
EP3967886A1 (de) * 2020-09-14 2022-03-16 Kesseböhmer Holding KG Gasfedersystem für einen höhenverstellbaren tisch, höhenverstellbarer tisch und verfahren zum betreiben des gasfedersystems
CN112240326A (zh) * 2020-11-04 2021-01-19 长春一东汽车零部件制造有限责任公司 配合差速式油缸的电动泵
DE102022201368A1 (de) 2022-02-10 2023-08-10 Robert Bosch Gesellschaft mit beschränkter Haftung Pumpvorrichtung mit Kupplung für Antriebsvorrichtung
EP4647601A1 (de) * 2024-05-09 2025-11-12 Lutz Pumpen GmbH Pumpe, verfahren zum betrieb einer solchen und verwendung eines bohrschraubers hierfür

Also Published As

Publication number Publication date
ITUA20161928A1 (it) 2017-09-23
FI12666U1 (en) 2020-06-15

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