EP1596012A2 - Druckmittelbetriebene Anordnung - Google Patents
Druckmittelbetriebene Anordnung Download PDFInfo
- Publication number
- EP1596012A2 EP1596012A2 EP05103295A EP05103295A EP1596012A2 EP 1596012 A2 EP1596012 A2 EP 1596012A2 EP 05103295 A EP05103295 A EP 05103295A EP 05103295 A EP05103295 A EP 05103295A EP 1596012 A2 EP1596012 A2 EP 1596012A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- actuator
- line
- connecting means
- connection
- 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- Withdrawn
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2275—Hoses and supports therefor and protection therefor
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- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/021—Installations or systems with accumulators used for damping
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- 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
- F15B11/003—Systems with load-holding valves
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- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
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- 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
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- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
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- 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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
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- 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
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
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- 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
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
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- 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
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
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- 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
- F15B2211/40—Flow control
- F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
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- 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
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
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- 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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
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- 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
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid 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
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
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- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/625—Accumulators
Definitions
- the invention relates to a fluid-operated arrangement with at least one pivotally articulated about a pivot axis Actuator, at least one line and at least one with the Actuator connected or connectable connector.
- the invention relates to a charger, a land or forestry machine and a construction machine.
- Hydraulic hoses are less stable Metallic piping and are therefore more vulnerable for damage caused by objects in the Movement radius of the hydraulic cylinder can protrude. by virtue of of the material used for hydraulic hoses tend these more likely to burst or break than rigid Pipe joints of metal.
- a fluid-operated arrangement of mentioned type designed such that the line and the connecting part about the pivot axis to each other pivotally are connectable.
- the line and the Connecting part about the pivot axis of the actuator to each other is arranged pivotably or can be arranged, can the connecting part, which connects the line from a pressure medium chamber of the actuator manufactures, the Follow swinging motion of the actuator, so no Relative movement between actuator and connector takes place.
- the conduit is at one through the Actuator to be pivoted component, such as a Outrigger or swingarm, attached or moved along led this component. Between the line and the Connecting part thus provides the same relative movement or pivoting movement, as between the actuator and the pivoting component.
- the fluid-operated Arrangement may be a hydraulic or pneumatic Act arrangement by which a hydraulic or Pneumatic cylinder is controlled.
- the pressure medium supply can be over conventional pressure sources such. hydraulic pumps or compressed air compressors, which are used to supply the Cylinder by appropriate valve arrangements with the line are connectable.
- the line hereby forms part of the Connection of the actuator with the pressure medium source forth and can both the pressure medium supply and the pressure medium discharge for serve the pressure medium chamber of the actuator.
- Connecting means between line and connector provided be.
- the connecting means preferably have a Connecting axis, which is aligned with the pivot axis of Actuator can be arranged.
- the Connecting means connecting sleeves and / or each other plugged and sealed pipe ends include.
- connection part Since the connection axis arranged coaxially to the pivot axis is, there are no relative movements between connection part and Hydraulic cylinder and between line and component on, so that the connection part and / or the line as massive, rigid components can be formed.
- the connection part For example, it can be flanged directly to the cylinder and also a support or holding function for the Take over connection means. This can be guaranteed be that the connection axis always with the pivot axis of the hydraulic cylinder is aligned.
- the connection part as a rigid Hydraulic pipe, for example as a metal pipeline made of steel, Brass or the like may be formed.
- the rigid one Piping can be via a conventional hydraulic Pipe connection directly to the hydraulic cylinder wall be connected.
- the Pipe be designed such that the Pipe mouth directly on the pivot axis or Connection axis laid and optionally with the Connecting means is connected.
- the Connector also as a to the hydraulic cylinder flanged metal block be formed, which is a rigid Connecting line in the form of a bore, which of the Pressure medium chamber to the pivot axis or to the connection axis leads.
- the connector as a fixed form part connected to the actuator, for example as one connected to the housing of the actuator Pivot pin, about its longitudinal axis of the actuator pivotable is.
- the connecting means is preferably directly on Pivot pin secured, e.g. screwed on, leaving a Fix réelle of the connecting axis coaxial with the pivot axis of Actuator is ensured.
- a connection from the Connecting means to the pressure medium chamber of the actuator getting produced.
- the pivotal connection is preferred formed such that the actuator pivotally mounted on the Pivot bolt is mounted and the pivot pin firmly with the Swingarm is connected.
- the actuator and the pivot pin a firmly connected Make unit and the pivot pin on the swingarm is pivotally mounted.
- a rigid support which in the Area of the pivot bearing on the actuator or on too pivoting component is anchored and located in the area the pivot axis or connecting axis extends to the Connecting part and / or connecting means and / or the line be set so that a aligned with the pivot axis, Constant position of the connection axis ensured is.
- the line as a hydraulic tube trained and can by appropriately stable or rigid Training and / or by appropriately stable attachment to to be pivoted component reliable fixation of Enable connection axis.
- the connecting means can be used as hydraulic or pneumatic swivel joints, in particular as Swivel fittings be designed and, for example a rectilinear, angular or s-shaped form exhibit.
- Swivel connections are used among others for Connection of components such as pipes, pipes and like, and have at least two connecting sides, the mutually rotatable about a fixed connection axis are and at the same time a pressure medium by the the connection sides interconnected components enable.
- Such hydraulic swivel fittings are state of the art and commercially available.
- a Safety valve in particular a load-holding valve or Raw rupture valve be provided. It is an advantage that both in the formation of the connection part and the Management, as well as possibly existing Lanyards on the use of hoses and can be dispensed with, so that a Safety valve not as usual directly on the actuator must be positioned, but at a constructive more advantageous location within the fluid-operated Arrangement can be positioned.
- more than one actuator in which more than one actuator is provided can thereby a safety valve several actuators are hedged, which can lead to significant savings. Then can For example, the positioning of only one safety valve be made in a main, the one Branching to the corresponding lines for the actuators upstream.
- a further embodiment of the invention can for Realization of a pressure-medium-operated suspension Be provided accumulator. It is from particular advantage that the pressure accumulator in combination with a safety valve can be arranged and not, as previously required, directly connected to the actuator must become. Because the positioning of the safety valve now almost arbitrary within the fluid-operated arrangement can occur, also for the positioning of a Pressure accumulator (or more pressure accumulator) constructive more advantageous options.
- a hydraulic arrangement according to the invention is suitable for Lifting and lowering a boom on a loader vehicle, for example, on a telescopic loader.
- Telescopic loaders must be used for safety reasons Be provided with pipe rupture.
- Such pipe rupture protection lead to restrictions in the design and Arrangement of hydraulic components.
- An inventive fluid-operated arrangement can also in a charger such as e.g. a front loader, Telehandlers, wheel loaders and the like are used.
- Chargers have one or more actuators that for lifting and lowering a loading arm, a boom or a swingarm are used.
- Actuators can be used by saving from Safety valves significant cost advantages can be achieved.
- there are possibilities to a suspension too install as a result of the state of thetechnik more advantageous positioning of Safety valves and accumulators with simpler Means are structurally feasible.
- Such Chargers with over-pressurized arrangements for Adjustment of a tool holder for a loader tool Mistake The possibility with the supply lines for one or more actuators in the tool holder area to be able to do without hydraulic hoses, improves the Robustness and stability of the arrangement.
- agricultural or forestry machines such as e.g. Tractors, Tillage equipment, harvesters, grubbing machines etc.
- construction machines such as Excavator or cranes
- Such machines can be a variety of Have actuators, which in terms of constructive Possibilities and advantages that a inventive fluid-powered arrangement offers, compared to the state the technology can be operated in a more suitable manner. So may be an inventive arrangement, for example advantageous to a hitch of a tractor for a find agricultural implement application.
- FIG. 1 shows a charger 10 which is connected to a tractor 12 mounted front loader 14 includes.
- the front loader 14 is on both sides of the tractor 12 via connection carrier 16, 17 to a with a frame 18 of the tractor 12 connected console 20th attached.
- the front loader 14 has a boom or rocker 22 on, by two parallel swing arms 24, 25 is trained.
- the swing arms 24, 25 are each with one of the connection carrier 16, 17 pivotally connected.
- a cross strut 26th provided (see Figure 2), the two swing arms 24, 25th connects with each other.
- a tool holder 28 is provided, which for Recording a loading tool 30 is used. That in FIG. 1 illustrated charger 10 has a loading shovel as Loading tool 30 on. There are also others Charging tools such. B. forklift or gripper to the Tool holder 28 can be mounted.
- the front loader 14 is with a fluid-powered assembly 32 provided to the Swiveling or for raising and lowering the rocker 22 is used and detailed in Figures 2 to 6 is shown. Furthermore, the front loader 14 has over Parallel guide linkage 34, 35, which the loading tool 30, regardless of a pivot position of the rocker 22, in one to the bottom of the charger 10 constant position hold.
- the pressure-medium-operated arrangement 32 shown in FIG. 2 has on both sides of the rocker 22 an actuator 36, 37 in the form of a hydraulically operated adjusting cylinder.
- an actuator 36, 37 for pivoting the rocker 22 are swing arms 24, 25, parallel guide rods 34, 35 and actuators 36, 37 pivotally connected via pivot pin connections 38, 39, 40, 41, 42, 43 to the connection carriers 16, 17, wherein the pivot pin 38, 40, 42 can be seen in Figure 2 only for one side of the rocker 22.
- the actuators 36, 37 are connected via further pivot pin connections 44, 45 with the rocker arms 24, 25, wherein the pivot bolt connections 44, 45 define a pivot axis 46 about which the respective actuator 36, 37 relative to the rocker 22 performs pivotal movements.
- the actuators 36, 37 designed as adjusting cylinders are connected on the rod side to the connection carrier 16, 17 and piston crown side to the swing arm arms 24, 25, whereby the piston crown sides for lifting the swing arm 22 and the rod sides for lowering the swing arm 22 are pressurized can. It is also possible to arrange the actuators 36, 37 in the reverse manner.
- the rod-side leg 48 includes a first flexible line 54, a rigid line 56 and a second flexible conduit 58.
- the first flexible conduit 54 opens into the safety valve 52.
- Starting from the safety valve 52nd leads the rigid line 56, for the purpose of pressure medium supply of the second actuator 37, on the opposite side of the Rocker 22.
- Starting from the rigid line 56 branches the second flexible line 58 to the lowering side of the actuator 36 from.
- the flexible lines 54, 58 are able to move due to from pivoting movements resulting relative movements between the rod side of the actuator 36 and the swing arm 24 and between the swing arm 24 and the connection part 16 adapt.
- the piston bottom side leg 50 includes a flexible Line 60, a first rigid line 62, a second rigid Line 64 and a connector 66, which also as rigid line is formed.
- the flexible conduit 60 opens in the safety valve 52. Starting from the safety valve 52nd leads the first rigid line 62 to the pressure medium supply of the second actuator 37 on the opposite side of the Rocker 22.
- the second rigid line 64 branches off from the first rigid line 62 and flows into one Connecting means 68 in the form of a pivot connection 68th for pressure medium lines. Starting from the lanyard leads the connecting part 66 to the lifting side of the actuator 36th
- the connecting means 68 in the form of a pivot connection for Pressure medium lines is designed such that the second rigid line 64 of the piston bottom end line branch 50th pivotable with the trained as a rigid line Connecting part 66 is connectable.
- Such pivotal connections For example, the company PARKER, a manufacturer for fluid-operated components and accessories, distributed.
- the connecting means 68 is positioned such that the Pivot axis of the connecting means 68 with the pivot axis 46th the rocker 22 is aligned or that the pivot axis of Connecting means 68 and the pivot axis 46 of the rocker 22nd lie on a common axis and aligned with each other are.
- a bracket 70th provided, as shown in detail in Figure 3.
- the holder 70 has an angle profile piece 72, which firmly connected at one end to the swing arm 24 (e.g. welded). At the other end is one with the Angle profile piece 72 fixedly connected retaining ring 74 provided which encloses and fixes the connecting means 68.
- a Such holder 70 can be used in many different ways be formed and should not on the in the figures 2 and 3 illustrated embodiment are limited. It is conceivable it is also to dispense with a bracket 70 completely and the necessary fixation of the connecting means 68 by a corresponding massive formation of the rigid lines 62, 64th and / or the connector 66.
- Hydraulic circuit diagram will be an embodiment below for a control of the fluid-operated arrangement 32nd be clarified. Shown is a hydraulic tank 75, off the means of a hydraulic pump 76 hydraulic fluid for Operating the actuators 36, 37 is pumped.
- One of the Operator of the charger 10 controllable control valve 77th controls the inflow and outflow of hydraulic oil into the pipes 54, 60 of the rod-side and piston-bottom side Line branches 48, 50.
- the control valve 77 is preferably designed as electrically switchable slide valve and has three switch positions, one stroke position, one Lowering position and a neutral position. In the stroke position is the hydraulic pump 76 with the piston bottom side Line branch 50 and at the same time the hydraulic tank 75 with connected to the rod-side leg 48.
- the Senk ein is the hydraulic pump 76 with the rod-side leg 48 and the same time Hydraulic tank 75 with the piston bottom side line branch 50th connected. In the neutral position, the connections of the Hydraulic pump 76 and the hydraulic tank 75 to the Lines 48, 50 interrupted.
- the lines 54, 60 are connected to the safety valve 52.
- the safety valve 52 includes a controllable pressure relief valve 78, as well a bypass line 82 provided with a check valve 80.
- the pressure relief valve 78 closes in normal position (as shown in Figure 4) the piston bottom side line branch 50, whereas through the bypass line 82 in conjunction with the check valve 80, a bypass of the pressure relief valve 78 is enabled in the direction of the actuators.
- first pressure control line 84 connected to the piston bottom side rigid line 62 is in communication or by a second pressure control line 86 connected to the rod-side leg 50 is connected, the Pressure relief valve 78 upon reaching a presettable Control pressure in the direction of the hydraulic tank 72 opened.
- the first pressure control line 84 serves the first pressure control line 84 as overload protection for the actuator 36, 37, so when reaching a critical operating pressure, the pressure relief valve 78th is opened.
- the rigid lines 56, 62 of the rod side and piston bottom side line branches 48, 50 of which the rod-side flexible lines 58 to the rod sides of the actuators 36, 37 and the piston bottom side second rigid lines 64 to the Lead connecting means 68.
- the Connecting parts 66 which in the form of rigid lines the Connection to piston bottom chambers 88, 90 of the Actuators 36, 37 produce.
- a hydraulic accumulator 92 which has a third rigid line 94 and a Shut-off valve 96, which has a closing and a Open position, with the first rigid line 62nd the piston bottom side branch 50 is connected.
- Hydraulic accumulator 92 is exemplified on the cross member 26 of Rocker 22 positioned, as can be seen from Figure 5. It is also conceivable that the hydraulic accumulator 92 at a Hollow cross member 26 within the cross member 26th is arranged. However, the hydraulic accumulator 92 can also another arbitrary position on the rocker 22 be positioned. Via an electrical supply line 98, the check valve 96 can be switched so that the Hydraulic accumulator 92 can be switched on and off.
- the hydraulic accumulator 92 is a fluid-operated Suspension realized by acting on the rocker 22 Shocks can be intercepted and dampened.
- a resilient movement of the actuators 36, 37th can take place, is designed as a closing valve 100 Suspension valve provided which the rod side Outflow of hydraulic oil into the tank allows.
- the Shut-off valve 96 and the closing valve 100 are preferably the Shut-off valve 96 and the closing valve 100 at the same time open.
- the on the pivot axis 46th arranged connecting means 68 provide over the rigid Lines formed connecting parts 66 the connection in the piston bottom side chambers 88, 90 ago, so that the actuators 36, 37 are extended. At the same time, hydraulic oil drain off into the hydraulic tank 72 on the rod side.
- Coaxially to the pivot axis 46 arranged connecting means 68th find pivoting movements of the actuators 36, 37 and the so connected connection parts 66 and rigid lines 64 exclusively to the pivot axis 46 instead, so that in piston bottom side line branch 50 in the direction of the actuators 36, 37 behind the safety valve 52 on flexible lines can be completely dispensed with.
- the existing Hydraulic accumulator 92 are connected, so that the Actuators 36, 37 piston bottom side with the hydraulic accumulator 92 be associated.
- control valve 77 In neutral position, the control valve 77 is closed, so that no hydraulic oil can drain into the hydraulic tank 72. at However, existing hydraulic accumulator 92 can be activated the suspension function, the closing valve 100 are opened, so that even with the switching valve 77 is a rod-side Outflow into the hydraulic tank 75 is made possible.
- FIGS 2, 3 and 5 illustrated connecting part 66 in the Swivel bolt connections 44, 45 integrated and as Swivel pin trained connector 66 inserted (see FIGS. 6 and 7).
- the following is this for the in Forward direction on the right side of the tractor 12 arranged swing arm 24 described.
- the swing arm 24 has opposite side walls 102, in which Swivel bearing bores 104 for mounting the connection part 66 are formed.
- the pivot bearing holes 104 is the Connector 66 fixed radially to the pivot axis 46.
- the actuator 36 has a piston bottom side Base plate 108, as well as an adjoining Threaded pin 110, which is perpendicular to the pivot axis 46 in Direction of the connection part 66 extends.
- the connection part 66 is by means of mounting plates 112 axially in the direction of Pivot axis 46 fixed.
- the connecting part 66 has a actuator-side junction 114 and a Connecting means side junction 116 on. Between the two connection points 114, 116 extends one first pressure medium bore 118.
- the connecting medium side Junction 116 is directly connected to the one used Connecting means 66 connected, preferably screwed.
- Connecting means 66 connected, preferably screwed.
- the actuator-side junction 114 is preferably centered between the side walls 102 arranged and has a matched to the threaded pin 110 Threaded hole 120 on. Extends through the threaded pin 110 There is a second pressure medium hole 122, the free of the lying end of the threaded pin 110 in the piston bottom side Chamber 88 of the actuator 36 leads.
- Connecting part 66 is formed as a solid pivot pin and both radially and axially to the pivot axis 46 pivotally is fixed on a holder 70 for the Connection means 68 are dispensed with.
- FIG. 8 A further embodiment is shown in FIG. 8, wherein the connecting part 66 via the connecting means 68 with a pivot pin 124 of the pivot bolt connection 44th is connected and comprises a third rigid line 126, the the connecting means 68 connects to the actuator.
- the Connecting means 68 is directly on the pivot pin 124th attached. Starting from the connecting means 68 extends a first connection bore 128 in the longitudinal direction Pivot axis 46 into the interior of the pivot pin 124 and crosses a second communication bore 130.
- the second Connecting bore 130 extends radially from the interior of the Swivel pin 124 from one to the periphery of the pivot pin 124 lying joint 132, with the second rigid line 64 of the piston bottom end line branch 50th connected is.
- connection holes 128, 130 within the pivot pin 124 is a connection to Connecting means 68 produced.
- Connecting means 68 coaxial with the pivot axis 46 directly on the Swivel pin 124 is attached is a fixation of Connecting axis of the connecting means 68 on the pivot axis 46 guaranteed.
- the pivot pin 124 is fixed to the Swing arm 24 connected so that the actuator 36 a Pivoting movement about the pivot pin 124 exerts and the between the connection part 66 and the third rigid line 126 and the pivot pin 124 occurring relative pivotal movement is received by the connecting means 68.
- the pivot pin 124 fixed to the Actuator 36 is connected, so that the pivot pin 124 on the rocker 24 is pivotally mounted.
Abstract
Description
- Fig. 1
- eine schematische Darstellung eines Ladegerätes mit einer erfindungsgemäßen druckmittelbetriebenen Anordnung,
- Fig. 2
- eine perspektivische Teilansicht der druckmittelbetriebenen Anordnung aus Fig. 1 mit einem Ausführungsbeispiel für eine Schwenkanordnung,
- Fig. 3
- eine perspektivische Detailansicht der Schwenkanordnung aus Fig. 2,
- Fig. 4
- einen schematischen Hydraulikschaltplan einer erfindungsgemäßen druckmittelbetriebenen Anordnung,
- Fig. 5
- eine perspektivische Teilansicht der druckmittelbetriebenen Anordnung aus Figur 1 mit einem Druckmittelspeicher,
- Fig. 6
- eine perspektivische Detailansicht eines weiteren Ausführungsbeispiels für eine Schwenkanordnung,
- Fig. 7
- eine Querschnittdarstellung der Schwenkanordnung aus Fig. 6 und
- Fig. 8
- eine Querschnittdarstellung eines weiteren Ausführungsbeispiels für eine Schwenkanordnung.
Eine Druckmittelversorgung der Aktuatoren 36, 37 erfolgt über einen stangenseitigen Leitungszweig 48 und über einen kolbenbodenseitigen Leitungszweig 50, wobei zur Absicherung der Aktuatoren 36, 37 gegen Druckabfall ein Sicherungsventil 52 in Form eines Lasthalteventils in den Leitungszweigen 48, 50 angeordnet ist.
Claims (10)
- Druckmittelbetriebene Anordnung mit wenigstens einem um eine Schwenkachse (46) schwenkbar angelenkten Aktuator (36, 37), wenigstens einer Leitung (64) und wenigstens einem mit dem Aktuator (36, 37) verbundenen oder verbindbaren Anschlussteil (66, 126), dadurch gekennzeichnet, dass die Leitung (64) und das Anschlussteil (66, 126) um die Schwenkachse (46) zueinander verschwenkbar verbindbar sind.
- Anordnung nach Anspruch 1, gekennzeichnet durch Verbindungsmittel (68) zwischen der Leitung (64) und dem Anschlussteil (66, 126).
- Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Anschlussteil (66, 126) und/oder die Leitung (64) als starres Bauteil oder als starre Leitung, insbesondere als Rohr ausgebildet sind.
- Anordnung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Verbindungsmittel (68) als Schwenkverbindung, insbesondere Schwenkverschraubung ausgebildet sind.
- Anordnung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Verbindungsmittel (68) an einer Schwenkbolzenverbindung (44) befestigt ist.
- Anordnung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass eine Halterung (70) vorgesehen ist, welche das Verbindungsmittel (68) in seiner Position zur Schwenkachse (46) fixiert.
- Anordnung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass wenigstens ein innerhalb eines kolbenbodenseitigen Leitungszweigs (50) angeordnetes Sicherungsventil (52), insbesondere ein Lasthalteventil oder ein Rohbruchsicherungsventil oder ein Rückschlagventil vorgesehen ist.
- Anordnung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass wenigstens ein mit dem kolbenbodenseitigen Leitungszweig (50) verbundener Druckmittelspeicher (92) vorgesehen ist.
- Ladegerät, mit einem Ausleger (22) und/oder einer Werkzeugaufnahme (28), dadurch gekennzeichnet, dass zu deren Verstellung wenigstens eine druckmittelbetriebene Anordnung (32) nach einem oder mehreren der Ansprüche 1 bis 8 vorgesehen ist.
- Land- oder forstwirtschaftliche Maschine, oder Baumaschine, dadurch gekennzeichnet, dass zum Heben und Senken schwenkbarer Komponenten wenigstens eine druckmittelbetriebene Anordnung (32) nach einem oder mehreren der Ansprüche 1 bis 8 vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004023102A DE102004023102A1 (de) | 2004-05-11 | 2004-05-11 | Druckmittelbetriebene Anordnung |
DE102004023102 | 2004-05-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1596012A2 true EP1596012A2 (de) | 2005-11-16 |
EP1596012A3 EP1596012A3 (de) | 2007-01-10 |
Family
ID=34939462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05103295A Withdrawn EP1596012A3 (de) | 2004-05-11 | 2005-04-22 | Druckmittelbetriebene Anordnung |
Country Status (3)
Country | Link |
---|---|
US (1) | US7275475B2 (de) |
EP (1) | EP1596012A3 (de) |
DE (1) | DE102004023102A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE533414C2 (sv) | 2008-09-17 | 2010-09-21 | Parker Hannifin Ab | Oklägessensor för en hydraulisk anordning |
JP5167054B2 (ja) * | 2008-09-30 | 2013-03-21 | 本田技研工業株式会社 | 電気自動二輪車 |
US20120306195A1 (en) * | 2011-05-31 | 2012-12-06 | Caterpillar, Inc. | High Rotation Linkage Attachment for Hydraulic Lines |
CN111059093A (zh) * | 2019-12-19 | 2020-04-24 | 湖北三江航天万山特种车辆有限公司 | 一种紧凑型车载油缸回转装置 |
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-
2004
- 2004-05-11 DE DE102004023102A patent/DE102004023102A1/de not_active Withdrawn
-
2005
- 2005-04-22 EP EP05103295A patent/EP1596012A3/de not_active Withdrawn
- 2005-05-05 US US11/122,503 patent/US7275475B2/en not_active Expired - Fee Related
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US3678810A (en) * | 1970-06-04 | 1972-07-25 | Ltv Electrosystems Inc | Rotational coupling |
US4767257A (en) * | 1985-12-23 | 1988-08-30 | Mitsubishi Denki Kabushiki Kaisha | Industrial robot |
JPH01177985A (ja) * | 1987-12-30 | 1989-07-14 | Honda Motor Co Ltd | 多関節機構 |
JPH08109654A (ja) * | 1994-10-13 | 1996-04-30 | Sumitomo Constr Mach Co Ltd | 建設機械の作業機用配管装置 |
DE9420227U1 (de) * | 1994-12-21 | 1996-04-25 | Freimuth Ulrich | Folgesteuerung von Hydraulikzylinder |
WO1999039127A1 (en) * | 1998-01-28 | 1999-08-05 | Tore Wiklund | Pressurized, closed lubrication and hydraulic oil system |
JP2000170197A (ja) * | 1998-12-09 | 2000-06-20 | Yanmar Agricult Equip Co Ltd | フロントローダ |
US20010024003A1 (en) * | 2000-03-23 | 2001-09-27 | Gerhard Huber | Actuation arrangement for movable components on vehicles |
US20020062587A1 (en) * | 2000-11-29 | 2002-05-30 | Komatsu Ltd. | Hydraulically driven type working machine |
Also Published As
Publication number | Publication date |
---|---|
EP1596012A3 (de) | 2007-01-10 |
DE102004023102A1 (de) | 2005-12-08 |
US20050254933A1 (en) | 2005-11-17 |
US7275475B2 (en) | 2007-10-02 |
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