DE3227541A1 - Gear machine (pump or motor) - Google Patents

Gear machine (pump or motor)

Info

Publication number
DE3227541A1
DE3227541A1 DE19823227541 DE3227541A DE3227541A1 DE 3227541 A1 DE3227541 A1 DE 3227541A1 DE 19823227541 DE19823227541 DE 19823227541 DE 3227541 A DE3227541 A DE 3227541A DE 3227541 A1 DE3227541 A1 DE 3227541A1
Authority
DE
Germany
Prior art keywords
housing
gear machine
bores
pump
motor
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Withdrawn
Application number
DE19823227541
Other languages
German (de)
Inventor
Wilhelm 7000 Stuttgart Dworak
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19823227541 priority Critical patent/DE3227541A1/en
Priority to IT22152/83A priority patent/IT1167657B/en
Priority to FR8312186A priority patent/FR2530740B1/en
Publication of DE3227541A1 publication Critical patent/DE3227541A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/082—Details specially related to intermeshing engagement type machines or engines
    • F01C1/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/14—Rotary-piston machines or engines 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
    • F01C1/18—Rotary-piston machines or engines 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)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The gear machine according to Fig. 1, which is designed as a pump or motor, has two gearwheels (16, 17), which mesh with one another externally and each of which has only one shaft journal (18, 20). The shaft journals are supported in housing covers (13, 14) which close the central part (11) of the housing. The housing covers are arranged in such a way that the holes (19, 21) are diametrically opposite one another in relation to the central part (11) of the housing. In this way, a simple and cheap gear machine with a precise centre distance a is obtained. <IMAGE>

Description

R. ' ·" * - 1.7·1982 Wd/KcR. '· "* - 1.7 · 1982 Wd / Kc

ROBERT BOSCH GMBH, 7OOO Stuttgart 1ROBERT BOSCH GMBH, 7OOO Stuttgart 1

Zahnradmaschine (Pumpe oder Motor) Stand der TechnikState of the art gear machine (pump or motor)

Die Erfindung geht aus von einer Zahnradmaschine nach der Gattung des Hauptanspruchs. Bei derartigen bekannten Maschinen weist jedes Zahnrad zwei Wellenzapfen auf, die in entsprechenden Bohrungen in den Gehäuseplatten gelagert sind. Das hat den Nachteil, daß der Achsabstand der Bohrungen genauestens eingehalten werden muß und die Rechtwinkligkeit der Bohrungen bezüglich der Stirnflächen der Gehäuseplatten ebenfalls ganz genau sein muß. Dies alles verlangt eine sehr genaue Bearbeitung, was hohe Fertigungskosten zur Folge hat.The invention is based on a gear machine according to the preamble of the main claim. With such known Machines each gear wheel has two shaft journals, which are mounted in corresponding bores in the housing plates are. This has the disadvantage that the center distance of the holes must be strictly adhered to and the right angles the holes must also be very precise with respect to the end faces of the housing plates. this everything requires very precise machining, which results in high manufacturing costs.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Zahnradmaschine mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die Bearbeitung wesentlich einfacher ist.The gear machine according to the invention with the characterizing Features of the main claim has the advantage that processing is much easier.

32275^1332275 ^ 13

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Längschnitt durch eine Zahnradmaschine, Figur 2 einen Schnitt längs II-II nach Figur 1, Figur 3 und k schematische Skizzen.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. 1 shows a longitudinal section through a gear machine, FIG. 2 shows a section along II-II according to FIG. 1, FIG. 3 and k are schematic sketches.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Das Gehäuse 10 der Zahnradmaschine besteht aus einem Gehäusemittelteil 11 und zwei dieses verschließende Deckel 13, lh. Das Gehäusemittelteil weist eine Ausnehmung 12 auf, die etwa die Querschnittsform einer acht hat. In der Ausnehmung 12 kämmen die außenverzahnten Zahnräder 16, 17 der Zahnradmaschine. Das Zahnrad 16 hat einen Wellenzapfen 18, der in einer Bohrung 19 des Deckels 1U gelagert ist. Das Zahnrad 17 hat einen Wellenzapfen 20, der in einer Bohrung 21 des Deckels 13 gelagert ist. Die Bohrung 21 befindet sich auf der entgegengesetzten Seite wie die Bohrung 19 und gegenüber dieser versetzt um den Achsabstand a, d.h. die Bohrungen 19 > 21 liegen einander diametral gegenüber. In die Ausnehmung 12 des Gehäusemittelttils 11 dringen von einander entgegengesetzten Seiten achsgleich verlaufende Bohrungen 23, 2h ein, die zur Zu- bzw. Abfuhr des Druckmittels dienen.The housing 10 of the gear machine consists of a housing middle part 11 and two covers 13, lh that close it. The middle part of the housing has a recess 12 which has approximately the cross-sectional shape of an eight. The externally toothed gears 16, 17 of the gear machine mesh in the recess 12. The gear 16 has a shaft journal 18 which is mounted in a bore 19 of the cover 1U. The gear 17 has a shaft journal 20 which is mounted in a bore 21 of the cover 13. The bore 21 is located on the opposite side to the bore 19 and offset from it by the center distance a, ie the bores 19> 21 are diametrically opposite one another. Bores 23, 2h , which run on the same axis and serve to supply and discharge the pressure medium, penetrate into the recess 12 of the central housing element 11 from opposite sides.

Wesentlicher Gedanke der Erfindung ist die Herstellung der Bohrungen 19» 21. Zu diesem Zweck werden die beiden Deckel 13, 1 ^ aufeinandergelegt, wie es Figur 3 zeigt, und erst dann werden die Bohrungen 19a 21 zusammen gebohrt Anschließend wird der Deckel 13 abgehoben, das Gehäuse-The essential idea of the invention is the production of the bores 19 »21. For this purpose, the two Lid 13, 1 ^ placed on top of one another, as shown in Figure 3, and only then are the bores 19a 21 drilled together Then the cover 13 is lifted off, the housing

mittelteil vird auf den Deckel 1U aufgesetzt, die Zahnräder werden mit ihren Wellenzapfen in die Bohrungen 19, 20 eingesetzt und dann wird der Deckel 13 um 18O Grad verschwenkt. Er wird nun auf das Gehäusemittelteil 13 samt dem Zahnrad 17 aufgesetzt. Der gewünschte Achsabstand a kann nun durch geringes Verdrehen der Deckel 13, 1^ gegeneinander eingestellt werden; er ergibt sich grob angenähert schon beim Einsetzen der Zahnräder in das Gehäusemittelteil 11. Anschließend werden die Gehäuseteile fest miteinander verschraubt. Der Wellenzapfen 18 hat einen Fortsatz 25, der zum Antrieb der Zahnradmaschine dient, wenn sie als Pumpe arbeitet. Diese kann aber genauso als Zahnradmotor betrieben werden, wenn ihr unter Hochdruck stehendes Druckmittel über die Bohrung 23 bzw. 2k zugeführt wird.middle part is placed on the cover 1U, the gear wheels are inserted with their shaft journals into the bores 19, 20 and then the cover 13 is pivoted by 180 degrees. It is now placed on the middle housing part 13 together with the gear 17. The desired center distance a can now be set by slightly turning the cover 13, 1 ^ against each other; it is obtained roughly when the gearwheels are inserted into the middle housing part 11. The housing parts are then screwed tightly together. The shaft journal 18 has an extension 25 which is used to drive the gear machine when it works as a pump. However, this can also be operated as a gear motor if it is supplied under high pressure pressure medium via the bore 23 or 2k.

Claims (2)

R-173 2 1"R-173 2 1 " 1.7-1982 Wd/Kc1.7-1982 Wd / Kc ROBERT BOSCH GMBH, 7OOO Stuttgart 1ROBERT BOSCH GMBH, 7OOO Stuttgart 1 AnsprücheExpectations Π J Zahnradmaschine (Pumpe oder Motor) mit im Außeneingriff kämmenden Zahnrädern, deren Wellenzapfen in Bohrungen von beidseits des Gehäusemittelteils angeordneten und dieses verschließenden Gehäusedeckeln gelagert sind,.dadurch gekennzeichnet, daß jedes Zahnrad (16, 17) nur einen Wellenzapfen (18, 21) und jeder Gehäusedeckel (13, 1k) nur eine Bohrung (19, 21) aufweist und daß die Ge-häusedeckel derart angeordnet sind, daß sich die Bohrungen bzw. Wellenzapfen bezüglich des Gehäusemittelteils diametral gegenüberliegen.Π J Gear machine (pump or motor) with externally meshing gears, the shaft journals of which are mounted in bores of the housing covers which are arranged on both sides of the middle part of the housing and which close it, characterized in that each gear wheel (16, 17) has only one shaft journal (18, 21) and each housing cover (13, 1 k ) has only one bore (19, 21) and that the housing covers are arranged in such a way that the bores or shaft journals are diametrically opposite one another with respect to the middle part of the housing. 2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Bohrungen (19, 21) die Gehäusedeckel vollständig durchdringen. 2. Machine according to claim 1, characterized in that the bores (19, 21) completely penetrate the housing cover.
DE19823227541 1982-07-23 1982-07-23 Gear machine (pump or motor) Withdrawn DE3227541A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19823227541 DE3227541A1 (en) 1982-07-23 1982-07-23 Gear machine (pump or motor)
IT22152/83A IT1167657B (en) 1982-07-23 1983-07-20 PUMP OR MOTOR GEAR MACHINE
FR8312186A FR2530740B1 (en) 1982-07-23 1983-07-22 GEAR MACHINE (PUMP OR MOTOR)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823227541 DE3227541A1 (en) 1982-07-23 1982-07-23 Gear machine (pump or motor)

Publications (1)

Publication Number Publication Date
DE3227541A1 true DE3227541A1 (en) 1984-01-26

Family

ID=6169139

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823227541 Withdrawn DE3227541A1 (en) 1982-07-23 1982-07-23 Gear machine (pump or motor)

Country Status (3)

Country Link
DE (1) DE3227541A1 (en)
FR (1) FR2530740B1 (en)
IT (1) IT1167657B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE419258C (en) * 1925-09-23
GB564235A (en) * 1943-06-15 1944-09-19 Equi Flow Inc Laminated gear pump
US3238883A (en) * 1964-03-09 1966-03-08 Micro Pump Corp Magnetic drive gear pump
GB1329969A (en) * 1969-12-12 1973-09-12 Bradley Ltd G & E Gear pumps
DE2432180B2 (en) * 1974-07-05 1977-04-14 Voith Getriebe Kg, 7920 Heidenheim GEAR MACHINE

Also Published As

Publication number Publication date
IT8322152A0 (en) 1983-07-20
IT1167657B (en) 1987-05-13
FR2530740B1 (en) 1988-06-10
IT8322152A1 (en) 1985-01-20
FR2530740A1 (en) 1984-01-27

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee