DE409898C - Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output - Google Patents

Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output

Info

Publication number
DE409898C
DE409898C DEL53244D DEL0053244D DE409898C DE 409898 C DE409898 C DE 409898C DE L53244 D DEL53244 D DE L53244D DE L0053244 D DEL0053244 D DE L0053244D DE 409898 C DE409898 C DE 409898C
Authority
DE
Germany
Prior art keywords
rotary movement
conveyor wheels
securing
gear pumps
output
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.)
Expired
Application number
DEL53244D
Other languages
German (de)
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 DEL53244D priority Critical patent/DE409898C/en
Application granted granted Critical
Publication of DE409898C publication Critical patent/DE409898C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • 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
    • F04C2/14—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 toothed rotary pistons
    • F04C2/18—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 toothed rotary pistons with similar tooth forms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Description

Vorrichtung zur Sicherung der Drehbewegung der Förderräder von Zahnradpumpen mit zur Leistungsänderung achsialer Verstellbarkeit. Die Zahnradpumpen, bei denen die Veränderung der Fördermenge dadurch bewirkt wird, daß die fördernden Zahnräder gegeneinander in achsialer Richtung verschoben, also in ihrer Eingriffsbreite verändert werden, haben den Nachteil, daß die Fördermenge nicht bis Null herabgemindert werden kann, weil die fördernden Zahnräder in diesem Falle außer Eingriff kommen würden und beim erneuten Ineinanderschieben die Zähne beschädigt werden könnten. Es sind deshalb besondere Vorrichtungen notwendig, um das mitlaufende, außer Eingriff gebrachte fördernde Zahnrad auf gleicher Drehzahl zu erhalten wie in eingerücktem Zustande.Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability to change the output. The gear pumps where the change in the delivery rate is caused by the fact that the conveying gears shifted against each other in the axial direction, so changed in their engagement width have the disadvantage that the delivery rate cannot be reduced to zero can, because the conveying gears would disengage in this case and the teeth could be damaged if they are pushed together again. There are therefore special devices are necessary to keep the moving, disengaged to maintain the conveying gear at the same speed as in the engaged state.

Diesem Übelstande wird gemäß der vorliegenden Erfindung dadurch abgeholfen, daß die Förderräder durch ein besonderes, immer in Eingriff bleibendes Zahnräderpaar miteinander in Verbindung stehen. Abb. i stellt eine Ausführungsform im Längsschnitt, Abb.2 in Ansicht und Querschnitt= dar.This disadvantage is remedied according to the present invention by that the conveyor wheels by a special, always in mesh pair of gears are related to each other. Fig. I represents an embodiment in longitudinal section, Fig. 2 in view and cross-section = fig.

Auf den Wellen i und 2 der beiden fördernden Zahnräder 3 und ¢ sitzen außerhalb des Gehäuses 5 zwei immer im Eingriff befindliche Zahnräder 6 und 7. Zahnrad 6 sitzt auf der unverschiebbaren Welle 2 fest, während die verschiebbare Welle i in dem Zahn-rad 7 sich verschieben, aber nicht verdrehen läßt. Wird die angetriebene Welle i mit dem Zahnrad: so weit verschoben, daß die Verzahnung außer Eingriff kommt, dann wird die Drehbewegung von der Welle i durch die Zahnräder 6 und 7 auf die Welle 2 übertragen.On the shafts i and 2 of the two conveying gears 3 and ¢ sit outside of the housing 5, always in engagement gears 6 and 7. Gear 6 sits firmly on the non-displaceable shaft 2, while the displaceable shaft i in the gear 7 itself move, but not twist. If the driven shaft i with the gearwheel is displaced so far that the toothing disengages, then the rotary movement is transmitted from the shaft i to the shaft 2 through the gearwheels 6 and 7.

Abb.3 stellt eine Ausführungsform der Erfindung für Mehrfachzahnradpumpen im Längsschnitt und Abb. q. in Ansicht und Querschnitt dar.Fig.3 shows an embodiment of the invention for multiple gear pumps in longitudinal section and Fig. q. in view and cross-section.

Auf den Wellen $, g der mitlaufenden Zahnräder i¢, 15 einer Mehrfachzahnradpumpe sitzen die Kettenräder io und ii fest, und die Kette 12 überträgt die Drehbewegung von dem einen auf das andere Kettenrad, wenn das verschiebbar angeordnete angetriebene und fördernde Zahnrad 13 so weit nach links oder rechts verschoben wird, daß es mit dem einen oder andern der mitlaufenden, fördernden Zahnräder 14 bzw. 15 nicht mehr im Eingriff bleibt. Hier wird also die Drehbewegung auf das mitlaufende, außer Eingriff gebrachte fördernde Zahnrad nicht von dem angetriebenen Zahnrad, sondern von dem andern mitlaufenden, im Eingriff stehenden fördernden Zahnrad übertragen.The sprockets io and ii sit tightly on the shafts $, g of the revolving gears i ¢, 15 of a multiple gear pump, and the chain 12 transfers the rotary motion from one to the other sprocket when the displaceably arranged driven and conveying gear 13 is so far behind is shifted left or right that it no longer remains in engagement with one or the other of the accompanying, conveying gears 14 and 15, respectively. Here, therefore, the rotary movement on the moving, disengaged conveying gear is not transmitted from the driven gear, but from the other moving, engaged conveying gear.

Statt Kette 12 kann auch eine immer im Eingriff bleibende Zahnradreihe in geeigneter Weise angeordnet werden.Instead of chain 12, a gear wheel row that is always in mesh can also be used be arranged in a suitable manner.

Claims (2)

PATENTANSPRÜCHE: i. Vorrichtung zur Sicherung der Drehbewegung der Förderräder von Zahnradpumpen mit zur Leistungsänderung achsialer Verstellbarkeit eines der zusammenarbeitenden Förderräder unter Verwendung eines an die Stelle des verschöbenen Zahnrades tretenden Abschlußkörpers, dadurch gekennzeichnet, daß die Förderräder durch ein besonderes, immer im Eingriff bleibendes Zahnradpaar (6, 7) miteinander in Verbindung stehen. PATENT CLAIMS: i. Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability of one of the cooperating conveyor wheels to change the output using a closing body which takes the place of the shifted gear wheel, characterized in that the conveyor wheels are provided with a special gear wheel pair (6, 7) which always remains in engagement are related to each other. 2. Vorrichtung nach , Anspruch i für Mehrfachzahnradpumpen, dadurch gekennzeichnet, daß die mitlaufenden, fördernden Zahnräder (i4, 15) durch besondere, die Drehbewegung übertragende Organe miteinander verbunden sind. 2. Device according to claim i for multiple gear pumps, characterized in that the following, conveying gears (i4, 15) are connected to one another by special organs which transmit the rotary movement.
DEL53244D 1921-05-28 1921-05-28 Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output Expired DE409898C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL53244D DE409898C (en) 1921-05-28 1921-05-28 Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL53244D DE409898C (en) 1921-05-28 1921-05-28 Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output

Publications (1)

Publication Number Publication Date
DE409898C true DE409898C (en) 1925-02-16

Family

ID=7275254

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL53244D Expired DE409898C (en) 1921-05-28 1921-05-28 Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output

Country Status (1)

Country Link
DE (1) DE409898C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748293C (en) * 1939-03-07 1944-10-31 Oil pressure brake device with restricted fluid circulation
US2684636A (en) * 1949-12-05 1954-07-27 Arthur P Heldenbrand Variable capacity gear pump
DE972836C (en) * 1951-04-15 1959-10-08 Kehren & Kehren K G Gear pump with variable delivery rate
NL1027440C2 (en) * 2004-11-08 2006-05-09 Tjerk Kingma Liquid pump and method for moving a liquid.
FR2981993A1 (en) * 2011-11-02 2013-05-03 Snecma Gear pump i.e. fuel pump, for turboshaft engine of aircraft, has secondary toothed wheel arranged between and engaged with primary toothed wheels and axially moved with respect to primary toothed wheels to vary displacement of pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748293C (en) * 1939-03-07 1944-10-31 Oil pressure brake device with restricted fluid circulation
US2684636A (en) * 1949-12-05 1954-07-27 Arthur P Heldenbrand Variable capacity gear pump
DE972836C (en) * 1951-04-15 1959-10-08 Kehren & Kehren K G Gear pump with variable delivery rate
NL1027440C2 (en) * 2004-11-08 2006-05-09 Tjerk Kingma Liquid pump and method for moving a liquid.
WO2006049500A1 (en) * 2004-11-08 2006-05-11 Tjerk Kingma Gear pump with variable capacity
FR2981993A1 (en) * 2011-11-02 2013-05-03 Snecma Gear pump i.e. fuel pump, for turboshaft engine of aircraft, has secondary toothed wheel arranged between and engaged with primary toothed wheels and axially moved with respect to primary toothed wheels to vary displacement of pump

Similar Documents

Publication Publication Date Title
DE3043719C2 (en)
DE409898C (en) Device for securing the rotary movement of the conveyor wheels of gear pumps with axial adjustability for changing the output
DE1159718B (en) Epicyclic gears with several sets of epicyclic gears arranged one behind the other
DE2036925A1 (en) Noiseless chain drive
DE644570C (en) Fast running gear pump
DE514678C (en) Arrangement on woodworking machines with feed rollers
DE1052166B (en) Oil pump for reversible engines
DE422356C (en) Disengagement device for the cutting rod in rod cutting machines
DE2720393B2 (en) Scraper chain conveyor
DE372455C (en) Gear transmission
DE434587C (en) Drive device for motor vehicles with a change gear switched on in front of and behind a bevel gear
DE363693C (en) Device for the precise setting of the individual working gears on cigarette machines and for driving the belt drum by hand
DE583427C (en) Multi-cylinder engine with two parallel groups of cylinders arranged close together and a spring-loaded, non-disengageable clutch
DE702726C (en) Gearbox with only lower pairs of elements for driving forced moving chutes
DE1183747B (en) Centrifugal coupling
DE559510C (en) Freely operated cutting machine
AT114904B (en) Device for slowing down rotary movements in sheet feeders.
DE430145C (en) Drive for long-link conveyor chains with an endless drag chain attacking their strand
DE374747C (en) Roller grater, especially for chocolate and. like
CH341042A (en) Device for preventing gears from fluttering in the gaps of their mating gears
DE360865C (en) Single belt transmission for right, left and idle speed
DE412048C (en) Overconsumption counter with mechanical periodically effective counter torque
DE447288C (en) Stripping roller for tobacco spreader on cigarette machines
DE643796C (en) Device for braking the cigarettes emerging from a straight cigarette machine
DE511754C (en) Device for making rope slips harmless in traction sheave conveyor machines