EP1760327A2 - Hydraulische Steuerung - Google Patents

Hydraulische Steuerung Download PDF

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Publication number
EP1760327A2
EP1760327A2 EP06018370A EP06018370A EP1760327A2 EP 1760327 A2 EP1760327 A2 EP 1760327A2 EP 06018370 A EP06018370 A EP 06018370A EP 06018370 A EP06018370 A EP 06018370A EP 1760327 A2 EP1760327 A2 EP 1760327A2
Authority
EP
European Patent Office
Prior art keywords
valve
hydraulic
pressure
hydraulic control
telescopic cylinder
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.)
Ceased
Application number
EP06018370A
Other languages
English (en)
French (fr)
Other versions
EP1760327A3 (de
Inventor
Michel Angelo Machado Damasceno
Luiz Roberto Simoes Rocha
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.)
Sauer Danfoss Hidraulica Mobil Ltda
Original Assignee
Sauer Danfoss Hidraulica Mobil Ltda
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 Sauer Danfoss Hidraulica Mobil Ltda filed Critical Sauer Danfoss Hidraulica Mobil Ltda
Publication of EP1760327A2 publication Critical patent/EP1760327A2/de
Publication of EP1760327A3 publication Critical patent/EP1760327A3/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/24—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle
    • B65F3/28—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle by a lengthwise movement of a wall, e.g. a plate, a piston, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
    • B65F3/20—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle with charging pistons, plates, or the like
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/555—Pressure control for assuring a minimum pressure, e.g. by using a back pressure valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/783—Sequential control

Definitions

  • the request hereon is about privilege of invention of a hydraulic control used in trucks and refuse compactor.
  • the refuse collectors and compactors in use in the market show a few problems related to the ability to compact refuse, that is, problems in getting a higher density of refuse per cubic meter of container 12 during the collection operation. Since the means of transmission of force and power used to drive the compacting mechanism is fit within the collection vehicle, a hydraulic system uses the increase of hydraulic pressure in the main work to get a greater hydraulic power and, as a result of it, a greater force in compacting the refuse. As a mechanic resistance limits the container, the truck structure may be damaged in case high forces overcome such resistance.
  • patent request P10006713-0 proposes a directional control with a pressure sequence valve and a pressure compensation valve, to allow the pressure induced in the telescopic hydraulic cylinder by the action of the compacting work to be constant and independent in the course the different stages/areas of the telescopic cylinder.
  • This pressure varies according to the force of compacting and the area of the telescopic cylinder in operation.
  • a homogeneous compacting of the residue is obtained.
  • the "rubber effect" can still occur this way.
  • the hydraulic system already known in the state of the art, includes:
  • the request on privilege of invention described hereon aims at solving the problems present in the state of the art, thus proposing a hydraulic directional control.
  • the hydraulic directional control proposed hereon provides, besides the already existing items, a piloted pressure sequence valve, a pressure compensation valve with a calibrated vent to control the flow and a externally piloted retention valve.
  • the piloted retention valve 20 comprises the body of a valve 23, a buffer 24 a connection for the pilot line 25, a piston 26, a limiter 27, a plunger 28 and a spring 29.
  • the piston 26 is kept against a center place in the body of the valve 23 through the action of a spring 29. Its function is to allow the free flow of fluid in one direction and keep it from going the opposite way. Note that an increase of pressure on the piston 26 in the non-allowed direction of the flow tends to push the piston 26 against the center place, thus enhancing the blocking.
  • an externally and/or internally piloted pressure sequence valve 21 and a pressure compensation valve with calibrated hole to control the flow 22 we managed to get an increase of cargo (greater residue density per cubic meter) at the work main low pressure. Both valves are part of the hydraulic pressure control induced in the telescope.
  • the externally and/or internally piloted pressure sequence valve 21 is responsible, at being piloted by the hydraulic pressure of the hydraulic cylinders 11 of the compactor, for liberating just the pressure induced in the telescopic cylinder to the pressure compensating valve with calibrated hole to control the flow 22, responsible for keeping the resulting pressure stable and controlling it so as to allow a minimum reduction of induced pressure and consecutively a small retreat of the stage of the telescopic cylinder in operation.
  • the volume of the container is increased when the retreat of the stage of the telescopic cylinder in operation is released 12, that is, a greater volume is created within the container 12 so that more residue may be compacted.
  • This pressure compensating valve 22 with calibrated hole keeps the induced hydraulic pressure of the telescopic cylinder under control. This induced pressure is obtained according to the areas of the stages of the telescopic cylinder in operation, as a result of the force of compacting applied. A constant and homogeneous compacting is obtained in each stage of the telescopic cylinder from the operation of this valve.
  • the piloted retention optional valve 20 provides the effect called "anti-rubber nipple".
  • the piloted retention valve 20 will allow the passage of hydraulic oil only to the telescopic cylinder and consequently the opening of this telescopic cylinder so that the compacted residue may be ejected through the ejecting system 14, outside the container 12 if the lid set 13 of the compactor is open. This is because the hydraulic pressure induced by the hydraulic cylinder 11 that opens the lid set 13 is what generates the piloting hydraulic pressure liberating the hydraulic flow to open the telescopic cylinder.
  • a directional hydraulic valve in the hydraulic line between the cylinder that lifts the lid set 13 and the pilot line of the piloted retention valve 20 is needed. The lid set must drive this directional valve mechanically and/or electrically 13. When this lid set 13 is closed the pilot line of the piloted retention valve 20 must be connected to the hydraulic oil tank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Fluid Gearings (AREA)
EP06018370A 2005-09-02 2006-09-01 Hydraulische Steuerung Ceased EP1760327A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0504163 2005-09-02

Publications (2)

Publication Number Publication Date
EP1760327A2 true EP1760327A2 (de) 2007-03-07
EP1760327A3 EP1760327A3 (de) 2007-12-05

Family

ID=37507647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06018370A Ceased EP1760327A3 (de) 2005-09-02 2006-09-01 Hydraulische Steuerung

Country Status (7)

Country Link
US (1) US20070062367A1 (de)
EP (1) EP1760327A3 (de)
CN (1) CN1923501A (de)
AR (1) AR055402A1 (de)
CO (1) CO5890005A1 (de)
MX (1) MXPA06009891A (de)
PE (1) PE20070577A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607001A (zh) * 2018-12-29 2019-04-12 福建龙马环卫装备股份有限公司 一种餐厨垃圾车推板卸料控制方法
CN111153088A (zh) * 2020-02-07 2020-05-15 邵延荣 一种压缩式垃圾车填装机构控制装置
CN112429443A (zh) * 2020-11-20 2021-03-02 长沙中联重科环境产业有限公司 一种压缩式垃圾车的推铲卸料控制方法、介质、电子设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108529097B (zh) * 2018-06-13 2019-11-01 河北极驰新能源科技有限公司 一种用于压缩式垃圾车的控制阀
CN109538555B (zh) * 2018-12-04 2023-10-13 潍柴(扬州)特种车有限公司 一种垃圾压缩车的节能液压系统
CN111561487A (zh) * 2020-06-17 2020-08-21 朱金和 工程机械用顺序阀密封结构和选型

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0006713A (pt) 2000-11-13 2003-09-02 Parker Hidraulica Ltda Aperfeiçoamento em circuito hidráulico para controle da força de atuação de cilindros compactadores, válvula reguladora de pressão e comando direcional hidráulico

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049256A (en) * 1960-03-23 1962-08-14 Heil Co Refuse body loading and packing mechanisms
US3410427A (en) * 1965-12-27 1968-11-12 Gar Wood Ind Inc Refuse packing system
DE3312547C1 (de) * 1983-04-07 1984-11-22 Kraus & Schöllhorn Karosserie- und Fahrzeugbau Friedrich Baumgärtner GmbH, 8900 Augsburg Müllverdichtungsvorrichtung
US4522551A (en) * 1983-04-18 1985-06-11 Henneberry James W Refuse storage and discharge apparatus
DE3345758C2 (de) * 1983-12-17 1985-10-10 Schörling GmbH & Co Waggonbau, 3000 Hannover Müllfahrzeug
US4690607A (en) * 1985-10-04 1987-09-01 The Heil Co. Refuse collection truck and apparatus for controlling compaction of refuse
JP2664375B2 (ja) * 1987-06-16 1997-10-15 富士車輌株式会社 塵芥収集車の油圧制御装置
JP3727828B2 (ja) * 2000-05-19 2005-12-21 日立建機株式会社 配管破断制御弁装置
US7121364B2 (en) * 2003-02-10 2006-10-17 Western Well Tool, Inc. Tractor with improved valve system
JP4397552B2 (ja) * 2001-09-05 2010-01-13 新明和工業株式会社 塵芥収集車の塵芥押込制御装置
AU2003216408C1 (en) * 2002-02-25 2009-09-24 Hagenbuch, Leroy G. Rear eject body for off-highway haulage units
US6799934B1 (en) * 2003-03-14 2004-10-05 Mcneilus Truck And Manufacturing, Inc. Rear loader variable packing density system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0006713A (pt) 2000-11-13 2003-09-02 Parker Hidraulica Ltda Aperfeiçoamento em circuito hidráulico para controle da força de atuação de cilindros compactadores, válvula reguladora de pressão e comando direcional hidráulico

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607001A (zh) * 2018-12-29 2019-04-12 福建龙马环卫装备股份有限公司 一种餐厨垃圾车推板卸料控制方法
CN111153088A (zh) * 2020-02-07 2020-05-15 邵延荣 一种压缩式垃圾车填装机构控制装置
CN112429443A (zh) * 2020-11-20 2021-03-02 长沙中联重科环境产业有限公司 一种压缩式垃圾车的推铲卸料控制方法、介质、电子设备
CN112429443B (zh) * 2020-11-20 2022-06-14 长沙中联重科环境产业有限公司 一种压缩式垃圾车的推铲卸料控制方法、介质、电子设备

Also Published As

Publication number Publication date
AR055402A1 (es) 2007-08-22
MXPA06009891A (es) 2007-03-21
EP1760327A3 (de) 2007-12-05
PE20070577A1 (es) 2007-07-12
CN1923501A (zh) 2007-03-07
CO5890005A1 (es) 2008-02-29
US20070062367A1 (en) 2007-03-22

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