WO2016162733A1 - Système d'hydromoteurs avec unités de combinaison variables - Google Patents

Système d'hydromoteurs avec unités de combinaison variables Download PDF

Info

Publication number
WO2016162733A1
WO2016162733A1 PCT/IB2015/052610 IB2015052610W WO2016162733A1 WO 2016162733 A1 WO2016162733 A1 WO 2016162733A1 IB 2015052610 W IB2015052610 W IB 2015052610W WO 2016162733 A1 WO2016162733 A1 WO 2016162733A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
output
input
output shaft
shaft
Prior art date
Application number
PCT/IB2015/052610
Other languages
English (en)
Inventor
Mohammad Taghi ABBASSZADEH
Mehrdad ABBASSZADEH
Original Assignee
Abbasszadeh Mohammad Taghi
Abbasszadeh Mehrdad
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 Abbasszadeh Mohammad Taghi, Abbasszadeh Mehrdad filed Critical Abbasszadeh Mohammad Taghi
Priority to PCT/IB2015/052610 priority Critical patent/WO2016162733A1/fr
Priority to EP15888385.0A priority patent/EP3280913A4/fr
Publication of WO2016162733A1 publication Critical patent/WO2016162733A1/fr

Links

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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/26—Reciprocating-piston liquid engines adapted for special use or combined with apparatus driven thereby
    • 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
    • F04B23/06—Combinations of two or more pumps the pumps being all of 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
    • F04B2203/00—Motor parameters
    • F04B2203/12—Motor parameters of rotating hydraulic motors
    • F04B2203/1201—Rotational speed

Definitions

  • the embodiments herein generally relate to a hydro-mechanical system and particularly relate to a hydraulic motor system with variable combination units.
  • a hydraulic motor is a mechanical actuator that converts hydraulic pressure and flow into torque and angular displacement (rotation).
  • the hydraulic motor is the rotary counterpart of the hydraulic cylinder.
  • a hydraulic motor should be interchangeable with a hydraulic pump because it performs the opposite function - similar to the way a DC electric motor is theoretically interchangeable with a DC electrical generator.
  • most hydraulic pumps cannot be used as hydraulic motors because they cannot be backdriven.
  • a hydraulic motor is usually designed for working pressure at both sides of the motor.
  • a drive system includes two reversible hydraulic motors connected in parallel to a variable displacement pump and controlled by respective 4-port, 2-position valves.
  • the motors at least one of which is a variable flow, variable speed motor, are coupled to a single output shaft via an intermediate gear section.
  • the hydraulic motors are positioned on one side of the intermediate gear section and their respective drive shafts are arranged parallel relative to one another.
  • a clutch which is concentrically disposed within an axial bore of a gear member, is operable to couple the drive shaft of a first of the motors to the output shaft.
  • a second gear member which is driven by the output shaft of a second of the motors, is adapted to mesh with the first gear member. If both motors are of variable speed construction, it is possible to operate the drive in three speed ranges, i.e. by operation of the first hydraulic motor only, by operation of the second hydraulic motor only, or by simultaneous operation of both hydraulic motors.
  • the hydraulic motor used conventionally allows only a sudden speed transition and braking ability which is undesirable during a handling of a sophisticated load. Also the hydraulic motors used for a vehicle movement have a same speed for all wheels which creates a troublesome turning of the vehicles.
  • the primary object of the embodiments herein is to provide a system of hydraulic motor with various combination to provide a variable load speed.
  • Another object of the embodiments herein is to provide a system of hydraulic motors with various combination to provide variable braking force.
  • Yet another object of the embodiments herein is to provide a system of hydraulic motors for independent wheel drive.
  • the various embodiments herein disclose a system for moving a load through a plurality of hydraulic pumps.
  • the system comprises a plurality of hydraulic motors, a plurality of hydraulic pumps and a load shaft.
  • Each hydraulic motor comprises a fluid chamber, an input valve, an output valve and an output shaft.
  • the fluid chamber comprises a piston having its movement due to a fluid flow inside the fluid chamber.
  • the input valve in each hydraulic motor control an intake fluid flow.
  • the output valve is placed at a displaced position with respect to the input valve on the fluid chamber.
  • the output shaft is connected to the piston in the fluid chamber.
  • the input and output valves of the plurality of hydraulic are connected to a fluid supply conduit in either a series mannerism or a parallel mannerism.
  • the plurality of hydraulic pumps are connected to the plurality of hydraulic motors through one or more fluid conduits.
  • the load shaft is connected to the output shaft of the hydraulic motors.
  • the output shafts of the plurality of hydraulic motors are connected to the load shaft in a series mannerism or a parallel mannerism.
  • the output valve is closed to apply a braking effect on the output shaft.
  • a force of braking is directly proportional to the number of the output valves closed.
  • the speed of revolution of the output shaft is directly proportional to number of the open input valves.
  • the input and output valves of the plurality of hydraulic motors are connected in series and also the output shaft of the plurality of hydraulic shafts are connected in series with each other.
  • the input and output valves of the plurality of hydraulic motors are connected in series and also the output shaft of the plurality of hydraulic shafts are connected in parallel with each other.
  • the input and output valves of the plurality of hydraulic motors are connected in parallel and also the output shaft of the plurality of hydraulic shafts are connected in series with each other.
  • the input and output valves of the plurality of hydraulic motors are connected in parallel and also the output shaft of the plurality of hydraulic shafts are connected in parallel with each other.
  • an output shaft of each hydraulic motor is independently connected to a load shaft.
  • FIG. la illustrates a series combination of the hydraulic motors, according to an embodiment herein.
  • FIG. lb illustrates a parallel combination of hydraulic motors, according to an embodiment herein.
  • FIG. 2 illustrates an implementation of hydraulic motor in driving a load, according to an embodiment herein.
  • FIG. 3 illustrates an implementation of the hydraulic motor in conjunction with a hydraulic pump in a wheel rotation, according to an embodiment herein.
  • FIG. la illustrates a parallel combination of the hydraulic motors, according to an embodiment herein.
  • the output shaft 101 of the plurality of hydraulic motors 102 are connected with the load shaft 103 in a parallel mannerism.
  • the input 104 and output valves 105 of the plurality of hydraulic motors 102 are connected in parallel to a fluid supply conduit 106 and a fluid outlet conduit 107.
  • the parallel connection allows a quick change in a rotational speed of the load shaft 103 and also offers sudden braking as the load shaft 103 is independently connected to each output shaft 101.
  • FIG. lb illustrates a series combination of hydraulic motors, according to an embodiment herein.
  • the output shaft 101 of the plurality of hydraulic motors 102 are connected with each other or coupled with each other and with the load shaft 103 in a series mannerism.
  • the input 104 and output valves 105 of the plurality of hydraulic motors 102 are connected in parallel to a fluid supply conduit 106 and a fluid outlet conduit 107.
  • the series combination allows a smooth variation in a rotation speed of the load shaft 103 during an acceleration and braking.
  • FIG. 2 illustrates an implementation of hydraulic motor in driving a load, according to an embodiment herein.
  • a gears (204 and 206) of the output shaft is connected to a gear 208 of the load shaft in such a way that when the output shafts of the hydraulic motors 201 and 202 rotate in a clockwise direction, the gear 204 and 206 moves in a rightward direction while during an anti-clockwise motion, they move in a leftward direction.
  • the translation of the gears 204 and 206 is put in an equilibrium by the placement of the springs in sideways.
  • a fluid flow in a chamber of the hydraulic motor is depicted by 207 (top view) and 208 (lateral view).
  • FIG. 3 illustrates an implementation of the hydraulic motor in conjunction with a hydraulic pump in a wheel rotation, according to an embodiment herein.
  • the hydraulic pump transfer a fluid at high pressure and flow rate to the individual hydraulic motors 202 which are further connected to an individual wheels.
  • an opening and closing of the inlet and outlet valves controls a rotational speed of individual wheels.
  • the said system with various combinations of the hydraulic motors allows to an efficient revolution speed and braking speed of a load shaft, thus allowing a user to smoothly translate a speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Motors (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un système pour déplacer une charge à travers une pluralité de pompes hydrauliques. Le système comprend une pluralité de moteurs hydrauliques, une pluralité de pompes hydrauliques et un arbre de charge. Chaque moteur hydraulique comprend une chambre à fluide, une soupape d'entrée, une soupape de sortie et un arbre de sortie. La chambre à fluide comprend un piston dont le mouvement est produit par un flux de fluide à l'intérieur de la chambre à fluide. La soupape d'entrée dans chaque moteur hydraulique commande un flux de fluide d'admission. La soupape de sortie est placée à une position déplacée par rapport à la soupape d'entrée sur la chambre à fluide. L'arbre de sortie est relié au piston dans la chambre à fluide. Les soupapes d'entrée et de sortie de la pluralité de composants hydrauliques sont raccordées à un conduit d'alimentation en fluide soit selon une méthode en série, soit selon une méthode en parallèle.
PCT/IB2015/052610 2015-04-10 2015-04-10 Système d'hydromoteurs avec unités de combinaison variables WO2016162733A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2015/052610 WO2016162733A1 (fr) 2015-04-10 2015-04-10 Système d'hydromoteurs avec unités de combinaison variables
EP15888385.0A EP3280913A4 (fr) 2015-04-10 2015-04-10 Système d'hydromoteurs avec unités de combinaison variables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2015/052610 WO2016162733A1 (fr) 2015-04-10 2015-04-10 Système d'hydromoteurs avec unités de combinaison variables

Publications (1)

Publication Number Publication Date
WO2016162733A1 true WO2016162733A1 (fr) 2016-10-13

Family

ID=57072282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2015/052610 WO2016162733A1 (fr) 2015-04-10 2015-04-10 Système d'hydromoteurs avec unités de combinaison variables

Country Status (2)

Country Link
EP (1) EP3280913A4 (fr)
WO (1) WO2016162733A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189920A (en) * 1979-02-08 1980-02-26 Caterpillar Tractor Co. Load signal control of hydraulic motor displacement
US4967555A (en) * 1987-10-14 1990-11-06 Honda Giken Kogyo Kabushiki Kaisha Hydraulic continuously variable speed transmission with relief valve to prevent engine stall
US20110179781A1 (en) * 2010-01-27 2011-07-28 Charles Leon Fant Hydraulic drive system for use in driven systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1222372A (en) * 1967-06-03 1971-02-10 Langdale Engineering Company L Improvements in or relating to supply and control mechanism for hydraulically-driven vehicles
DE2110736B1 (de) * 1971-03-06 1972-05-25 Buckau Wolf Maschf R Vorrichtung zum gemeinsamen antreiben mehrerer zentrifugen
FR2251736B1 (fr) * 1973-11-21 1977-06-10 Poclain Sa
FI75308C (sv) * 1985-01-25 1988-06-09 Ky Carlson Project Kb Hydrostatiskt drivsystem.
DE4307616C2 (de) * 1993-03-08 1996-06-27 Mannesmann Ag Hydrostatisch-mechanisches Getriebe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189920A (en) * 1979-02-08 1980-02-26 Caterpillar Tractor Co. Load signal control of hydraulic motor displacement
US4967555A (en) * 1987-10-14 1990-11-06 Honda Giken Kogyo Kabushiki Kaisha Hydraulic continuously variable speed transmission with relief valve to prevent engine stall
US20110179781A1 (en) * 2010-01-27 2011-07-28 Charles Leon Fant Hydraulic drive system for use in driven systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3280913A4 *

Also Published As

Publication number Publication date
EP3280913A4 (fr) 2018-06-06
EP3280913A1 (fr) 2018-02-14

Similar Documents

Publication Publication Date Title
US3065700A (en) Hydrostatic steering arrangement
US8863510B2 (en) Electrohydraulic actuator with a pump incorporated in the piston
JP2002523711A5 (ja) 連続可変変速機
CN105393017A (zh) 电动液压的致动器
US20150292617A1 (en) Control mechanism for a continuously variable transmission
JP2009036373A (ja) 油圧式車両クラッチ機構及び方法
WO2015020826A1 (fr) Vanne à papillon actionnée par un fluide
US2421013A (en) Hydraulic driving, braking, and freewheeling mechanism for vehicles
CN108026989B (zh) 流体组件
US20170002806A1 (en) Hydraulic pump assembly for a vehicle
US9416871B1 (en) Flow divider assembly
US20170138335A1 (en) Hydrostatic radial piston machine
CN104776072B (zh) 液压轴
EP3280913A1 (fr) Système d'hydromoteurs avec unités de combinaison variables
US1156816A (en) Hydraulic transmission mechanism.
JP6516872B2 (ja) 容積形ポンプ、容積形ポンプの運転方法およびステアリングシステム
EP2981727B1 (fr) Système hydraulique ayant un embrayage à griffes
JP2017529506A5 (fr)
US10316867B2 (en) Hydraulic rotary actuator with built-in mechanical position feedback
US6651794B2 (en) Hydro-mechanical combiner
US4578020A (en) Hydraulic motor
CN104981607A (zh) 液压齿轮马达、齿轮泵和具有无级可变参数的传动装置
EP3705756B1 (fr) Actionneur hydraulique de transmission et ensemble comprenant un tel actionneur et une transmission pour chaîne cinématique de véhicule automobile
CN109027395A (zh) 电液联动的控制系统及调节型执行器
US1952570A (en) Hydraulic transmission gear

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15888385

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE