AT48789B - Process for the automatic control of hydraulic machines with two or more piston areas increasing in stages. - Google Patents

Process for the automatic control of hydraulic machines with two or more piston areas increasing in stages.

Info

Publication number
AT48789B
AT48789B AT48789DA AT48789B AT 48789 B AT48789 B AT 48789B AT 48789D A AT48789D A AT 48789DA AT 48789 B AT48789 B AT 48789B
Authority
AT
Austria
Prior art keywords
automatic control
piston
stages
hydraulic machines
piston areas
Prior art date
Application number
Other languages
German (de)
Inventor
Carl Huber
Original Assignee
Carl Huber
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 Carl Huber filed Critical Carl Huber
Application granted granted Critical
Publication of AT48789B publication Critical patent/AT48789B/en

Links

Landscapes

  • Control Of Presses (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 Steuerung nicht stark   abgedrossett      wird,'die Bewegungskraft   für den Steuerkolben auch nach der   wohnung   des   Umströmweges   gross genug sein, um, die Gewichtswirkung zu überwinden und 
 EMI2.2 
 nach Fig. 5 dargestellt-dadurch erreicht werden, dass die treibende Fläche der Steuerkolbens beim Umsteuern in dem gleichen Verhältnis grösser wird, wie die Arbeitskolbenfläche. 
 EMI2.3 
 
1.

   Verfahren zur selbsttätigen Steuerung von hydraulischen Arbeitsmaschinen mit zwei oder mehreren stufenartig zunehmenden Kolbenflächen, darin bestehend, dass. zur Verstellung der Steuerungsorgane die durch den grösseren oder kleineren Arbeitswiderstand eintretende   Druckzunahme   oder   Druckzunahme   der Betriebsflüssigkeit im Zylinderraum der betreffenden Druckstufe (in welchem der zugehörige Kolben oder die betreffende Kolbenfläche arbeitet) nutzbar gemacht wird.



   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 Control is not severely throttled, 'the motive force for the control piston, even after the flow around the dwelling, be large enough to overcome the weight effect and
 EMI2.2
 According to FIG. 5, this can be achieved in that the driving surface of the control piston when reversing becomes larger in the same ratio as the working piston surface.
 EMI2.3
 
1.

   A method for the automatic control of hydraulic machines with two or more piston surfaces increasing in stages, consisting in that. To adjust the control organs, the pressure increase or pressure increase of the operating fluid in the cylinder space of the relevant pressure stage (in which the associated piston or the relevant piston surface works) is made usable.

Claims (1)

2. Steuerung zur Ausführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass die Steuerungsorgane nach Art von Kolben oder dgl. in einem Gehäuse nach Art eines Rezipienten beweglich angeordnet sind, wobei dieser Rezipient mit dem Pressenraum der betreffenden Arbeitsstufe kommuniziert, während der Kolben selbst für eine bestimmte, der Grösse der Druckstufe entsprechende Druckgrenze belastet ist, derart, dass die infolge der Druckänderung im Zylinderraum eingeleitete Umsteuerung bei Erreichung dieser Druckgrenze durch Über- windung der Belastung erfolgt. 2. Control for carrying out the method according to claim 1, characterized in that the control elements in the manner of pistons or the like. Are movably arranged in a housing in the manner of a recipient, this recipient communicating with the press room of the work stage concerned, while the piston itself is loaded for a specific pressure limit corresponding to the size of the pressure stage, in such a way that the reversal initiated as a result of the pressure change in the cylinder chamber takes place when this pressure limit is reached by overcoming the load. 3. Ausführungsform der selbsttätigen Steuerung nach Anspruch 1, dadurch gekennzeichnet, dass für sämtliche Arbeitskolben oder Arbeitskolbenflächen nur ein einziger Steuerkolben vorgesehen ist. 3. Embodiment of the automatic control according to claim 1, characterized in that only a single control piston is provided for all working pistons or working piston surfaces. 4. Ausführungsform der selbsttätigen Steuerung nach Anspruch 1. dadurch gekennzeichnet, EMI2.4 4. embodiment of the automatic control according to claim 1, characterized in that EMI2.4
AT48789D 1908-11-04 1908-11-04 Process for the automatic control of hydraulic machines with two or more piston areas increasing in stages. AT48789B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT48789T 1908-11-04

Publications (1)

Publication Number Publication Date
AT48789B true AT48789B (en) 1911-07-10

Family

ID=3569392

Family Applications (1)

Application Number Title Priority Date Filing Date
AT48789D AT48789B (en) 1908-11-04 1908-11-04 Process for the automatic control of hydraulic machines with two or more piston areas increasing in stages.

Country Status (1)

Country Link
AT (1) AT48789B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229819B (en) * 1959-02-17 1966-12-01 Langenstein & Schemann A G Hydraulically operated drop hammer for single or continuous blows
DE1235712B (en) * 1958-12-17 1967-03-02 Langenstein & Schemann Ag Drop hammer that can be lifted hydraulically and, for example, activated by pressing the pedal
EP0216283A2 (en) * 1985-09-26 1987-04-01 SMS Hasenclever GmbH Multi-stage forging press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235712B (en) * 1958-12-17 1967-03-02 Langenstein & Schemann Ag Drop hammer that can be lifted hydraulically and, for example, activated by pressing the pedal
DE1229819B (en) * 1959-02-17 1966-12-01 Langenstein & Schemann A G Hydraulically operated drop hammer for single or continuous blows
EP0216283A2 (en) * 1985-09-26 1987-04-01 SMS Hasenclever GmbH Multi-stage forging press
EP0216283A3 (en) * 1985-09-26 1987-06-16 SMS Hasenclever GmbH Multi-stage forging press

Similar Documents

Publication Publication Date Title
DE2215922A1 (en) HYDRAULICALLY ACTUATED DOUBLE CLUTCH FOR REVERSING GEAR
AT48789B (en) Process for the automatic control of hydraulic machines with two or more piston areas increasing in stages.
DE420976C (en) Device for keeping the pistons of rotary piston machines tight, which are pressed against the running surfaces by press oil
AT82537B (en) Steam hydraulic forging press with continuously pressurized return cylinders.
AT33368B (en) Control for hydraulically operated presses and other work machines.
DE29922327U1 (en) Lift
DE962497C (en) Fluid pump or motor
DE970728C (en) Vehicle tilting device with several lifting presses
DE337270C (en) Sealing of the machine parts that slide on one another or into one another in liquid pumps
AT299654B (en) Hydraulic feed drive for the carriages of machine tools, in particular lathes
AT54139B (en) Hydraulic press with a pressure plate articulated to the piston.
AT39251B (en) Control for hydraulic machines.
AT43822B (en) Pipe slide control for pneumatic hammers.
AT243194B (en) Circuit for hydraulic excavator
AT36906B (en) Drive for air pumps.
AT55854B (en) Rotary valve control with oscillating disks for power machines with reciprocating pistons.
AT143076B (en) Control or drive device with hydraulic transmission.
DE673660C (en) Pressurized fluid feed device for machine tools
DE1214963B (en) Three-way valve with two locking pieces and pressure medium drive, especially steam-water valve for record presses
DE166424C (en)
AT259319B (en) Cuffs that seal against changing pressure on longitudinally movable parts
AT29077B (en) Control for hydraulic presses with low and high pressure accumulator.
AT7135B (en) Hydraulic drawing press.
AT51315B (en) Expansion control for compressed air tools, in particular rock drilling machines.
DE1577206C3 (en) Hydraulic overload protection