EP1132619B1 - Mehrteilig aufgebautes Gehäuse - Google Patents
Mehrteilig aufgebautes Gehäuse Download PDFInfo
- Publication number
- EP1132619B1 EP1132619B1 EP01102964A EP01102964A EP1132619B1 EP 1132619 B1 EP1132619 B1 EP 1132619B1 EP 01102964 A EP01102964 A EP 01102964A EP 01102964 A EP01102964 A EP 01102964A EP 1132619 B1 EP1132619 B1 EP 1132619B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing body
- housing
- cover
- part construction
- face
- 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 - Lifetime
Links
Images
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
- 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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/086—Carter
-
- 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
Definitions
- the invention is based on a multi-part housing, this is for a hydraulic pump operating as a pump or motor Working machine, in particular provided for a gear machine is, and that the features of the preamble of the claim 1 has.
- Such a housing has, for example, one of DE-OS 24 19 855 known external gear pump.
- the housing body is today mostly made of aluminum in an extrusion process.
- aluminum has the disadvantage of one compared to Steel or cast iron lower strength. It also has aluminum no pronounced fatigue range.
- the engine receiving chamber of hydraulic machines is constantly changing under operating conditions Press suspended. Especially in the field of high-pressure Supply channels can thereby the housing body occurring stresses are so great that cracks and housing breaks occur. Become known solutions for this Problem is exhausted in it, the material load through Enlargement of the wall thickness, the use of high-strength aluminum alloys or by strain hardening of the fracture-prone Increase cross sections. However, these measures increase the volume of construction and / or make the production of a housing body more expensive.
- the housing comprises a housing body for training an engine receiving chamber with a continuous Recess is provided.
- Lids are attached to the chamber to the environment Close.
- the housing parts are by adjusting pins aligned with each other and with the help of Bolt connected together.
- the alignment pins are located itself in a plane passing through the axes of the two external gears is spanned and perpendicular to the axis of the two supply channels. Based on the positioning of the Alignment pins can be seen that they do not have the function to counteract a widening of the middle housing body. But the strength of Justierstatte leaves an essential Do not expect power transmission over them.
- DE 33 24 831 A1 shows a vane pump, in which a Cover and a housing body in the abutting Surfaces coincided with each other and the parting plane have inclined grooves that are liquid or flowable cast-in and hardenable material, for example the Melt of a plastic or metal, are filled.
- a Cover and a housing body in the abutting Surfaces coincided with each other and the parting plane have inclined grooves that are liquid or flowable cast-in and hardenable material, for example the Melt of a plastic or metal, are filled.
- the cover and the housing are to be connected to each other and the parting line be sealed in between.
- the material in the joints thus fulfills the function a seal. Furthermore, the material fulfills the function Cover and housing body to hold together.
- the problem a widening of the housing body by the pressure in the interior is irrelevant in scripture, as we can see from that the filled material can also be plastic, so that no great powers can be absorbed. The location the supply channels is not visible.
- US 3 494 293 shows a spiral pump, the parts of which are obvious Made of plastic and are clipped together.
- a housing of a hydraulic machine with the features of claim 1 or the independent claim 11 has the advantage that with low production overhead high strength, long life and a high compressive strength of the housing body is achieved.
- claim 1 are about the screw and the system intended to extend beyond the plane surfaces, the one due to their arrangement one in the direction of the supply channels directed expansion of the housing body Act.
- the funds form a positive connection between the Lid and the housing body.
- the means are special easy and inexpensive to display, if they are in the form of a blind hole Recesses are formed in the lids, in the housing body is used in sections or if they performed in the form of fitting bodies and associated recesses are.
- a particularly good effectiveness of the means is achieved, if the lid and the housing body made of different materials are manufactured and if the material of the cover a higher Strength than that of the housing body has.
- Means in shape recesses in the lid are also particularly suitable good for arranging seals to seal the engine chamber opposite the environment.
- the housing body facing end surfaces the lid crowned convexly outwards.
- the biasing force of both components is due to this deformation of the lid higher than with lids with plan end faces. Mechanically, this measure affects this way from that higher between the housing body and the lid Static friction are effective.
- a larger stiction works due to the limited relative mobility of the components also an operating pressure-related expansion of the housing body opposite.
- FIG. 1 is based on an exploded view of the per se known structure of a gear machine shown.
- FIGS. 2 to 6 show cover of a housing for a gear machine partly in different views.
- gearwheel machine 10th has a housing of a housing body 14 and 16 of lids and 18.
- the housing body 14 is formed as an extruded profile and has a continuous recess 12. The latter is closed by the lid 16 and 18 to the environment.
- Seal the lid 16 and 18 are on the front sides of the housing body 14 seals 19 provided.
- One of the lids 16 is formed as a flange plate with a through hole 20, through which a torque transmitting shaft 22 protrudes outwards.
- About the flange plate can be the gear machine 10 with an input / output unit, such as a Electric motor or a generator, depending on the operation of the Gear machine 10 as a pump or motor, couple.
- the lids 16, 18 are bolted to the housing body 14. These are each four, trained in the corners of the lid holes 23 provided through which fastening screws 26 in threaded holes 28 of the housing body 14 can be screwed are.
- the closed by the covers 16, 18 recess 12 forms an engine chamber 30 for receiving the engine 24.
- the latter consists of two meshing with each other in external engagement Gears 32 and 34, which on the torque transmitting shaft 22 and a secondary shaft 36 arranged parallel thereto are.
- the gear 34 can rotate or freely movable be arranged on the secondary shaft while the gear 32nd rotatably connected to the outwardly leading shaft 22, to transmit a torque.
- the gears 32 and 34 mesh at least in interlocking engagement with each other.
- bushings 38 to 44th For supporting the shafts 22 and 36 are bushings 38 to 44th present, in pairs on both sides of the gears 32, 34 are arranged. These bushings serve 38 to 44 beyond that also for the axial sealing of the gears 32, 34 and the housing body 14 limited tooth chambers.
- the substantially cylindrical bushings 38 to 44 have on each side of a flattening 46, with each other issue.
- the outer contour of a pair of bearing bushes 38 to 44 thereby substantially corresponds to the contour of a Eight.
- a correspondingly shaped inner contour of the recess 12 the housing body 14 allows a radial support of the Bushings 38 to 44 in the chamber 30.
- the supply channels 48, 50 run radially to the engine chamber 30.
- the housing body 14 expands, the maximum expansion in the area of the mouth of the high-pressure-carrying Supply channels 48, 50 is measurable.
- the high pressure loaded portion of the housing body 14 is through the supply channel also arranged there 48, 50 and through the threaded holes 51 for anchoring any Connecting piece mechanically weakened.
- the pressure level fluctuates in the case of operation of the gear machine 10 periodically, usually at high frequency.
- the problem underlying the invention is therefore in it structurally simple and inexpensive realizable measures suggest that the occurring on the housing body 14 At least partially divert stresses to the covers 16, 18 thereby the voltages on the housing body 14 to a non-critical Lower level.
- Aluminum as material for the housing body 14 should also be retained for manufacturing reasons be like the outer dimensions of the housing 11th
- means 52 to provide between the housing body 14 and the covers 16, 18, the one of the expansion of the housing body 14 in the direction of the supply channels 48, 50 counteracting Form fit.
- FIG. 2 In the first embodiment of Figure 2 is in these means 52 to a recess 54 on the housing body 14 facing side of at least one lid 16, 18th
- the recess 54 is in its dimensions on the outer contour the housing body 14 is tuned such that at least in one Section plane X by the gear machine 10, the vertical stands on the lids and in the supply channels 48, 50 run, backlash between cover 16, 18 and housing body 14 exists.
- the tensions of the housing body 14 are by these means 52 in Tensile stresses of the lid 16, 18 converted, so that the voltage level at break-prone cross-section sinks. Especially this measure is effective when the material of the lid 16, 18th has a higher strength than the housing body 14. Clearly would be in addition to a higher-strength aluminum alloy, for example Also conceivable steel or cast iron.
- the pinhole holes 58 are on the housing body 14 facing side a lid 16, 18 provided while the dowel pins on the housing body 14 are anchored and out of the face of this Protruding housing body 14. They extend in the longitudinal direction the gear machine 10.
- the means 52 are designed as so-called pressure webs 60, the imaginary and in the direction of the supply channels 48, 50 guided cutting plane X vertically intersect and thus aligned perpendicular to the expansion direction of the housing 14 are.
- the pressure ridges 60 engage in recesses provided for this purpose 62, which alternatively on the lid 16, 18 or on the housing body 14 may be formed.
- Leave the pressure bars 60 integrally molded on one of these two components or as separate inserts.
- Pressure bars 60 have in difference to the mentioned in the second embodiment dowel pins a rectangular cross-section with rounded edges. Their advantage is, among other things, that they due to a larger of the expansion counteracting bearing surface lower Tensions are exposed.
- the means 52 are as a texture 64 between the facing sides of the lid 16, 18 and the housing body 14 is formed.
- This in figure 5 only schematically illustrated texture 64 forms a kind of Dovetailing between these components, their teeth and tooth gaps comparable to the pressure webs 60 according to the embodiment 3 perpendicular to the widening direction along the end faces on the housing body 14 and cover 16, 18 are aligned.
- Each tooth has a correspondingly shaped tooth space on the adjacent one Assigned component.
- a Cover 16, 18 in front view and plan view show the housing surface 14 facing the cover surface 66 is spherical arched outwards.
- the vault does not necessarily have to be in Direction of the vertical axis marked Y and in the cutting plane X can extend, but also only in the direction of Extend vertical axis Y
- the direction Y of the vertical axis runs perpendicular to the direction of expansion of the housing body 14 and crosses, as with the other proposed solutions, the sectional plane X.
- the end face of the Housing body 14 alternatively or in addition to the front of the Cover 16.18 be curved convex to the outside.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
Claims (11)
- Mehrteilig aufgebautes Gehäuse für eine hydraulische Arbeitsmaschine (10), insbesondere für eine Zahnradmaschine (Pumpe oder Motor), mit einem Gehäusekörper (14), der zur Ausbildung einer ein Triebwerk (24) aufnehmenden und mit Betriebsdruck beaufschlagbaren Triebwerkskammer (30) mit einer Ausnehmung (12) versehen ist, die zu wenigstens einer Stirnseite des Gehäusekörpers (14) hin offen ist, und in dem sich radial zur Triebwerkskammer (30) verlaufende und an der Umfangsfläche mündende Versorgungskanäle (48, 50) befinden, und mit einem die Triebwerkskammer (30) an einer offenen Stirnseite des Gehäusekörpers (14) verschließenden Deckel (16, 18), der mit Schrauben (26) an die Stirnseite des Gehäusekörpers (14) angedrückt ist, dadurch gekennzeichnet, dass in einer senkrecht auf dem Deckel (16, 18) stehenden und durch die Versorgungskanäle (48, 50) gehenden Ebene Mittel (52) vorgesehen sind, die in radialer Richtung einen Formschluss zwischen dem Gehäusekörper (14) und dem Deckel (16, 18) bilden.
- Mehrteilig aufgebautes Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass als Mittel (52) eine Aussparung (54) im Deckel (16, 18) vorgesehen ist, in die der Gehäusekörper (14) abschnittsweise einsetzbar ist und dass die Aussparung (54) in Richtung der Versorgungskanäle (48, 50) in ihren Abmessungen auf die Außenmaße des Gehäusekörpers (14) spielfrei abgestimmt ist.
- Mehrteilig aufgebautes Gehäuse nach Anspruch 2, dadurch gekennzeichnet, dass an einer der Umfangsfläche des Gehäusekörpers (14) zugewandten Wandung (56) der Aussparung (54) des Deckels (16, 18) eine Dichtung vorgesehen ist, die die Triebwerkskammer (30) zur Umgebung hin abdichtet.
- Mehrteilig aufgebautes Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass die Mittel (52) in Form von Passkörpern (60) und von diese Passkörper (60) aufnehmenden Ausnehmungen (58, 62) ausgebildet sind.
- Mehrteilig aufgebautes Gehäuse nach Anspruch 4, dadurch gekennzeichnet, dass die Passkörper Druckstege (60) sind, deren Längsachse parallel zur Stirnfläche und senkrecht zur Radialrichtung ausgerichtet ist.
- Mehrteilig aufgebautes Gehäuse nach Anspruch 4, dadurch gekennzeichnet, dass die Passkörper Paßstifte sind, die senkrecht zum Deckel (16, 18) verlaufen.
- Mehrteilig aufgebautes Gehäuse nach Anspruch 1, dadurch gekennzeichnet, dass als Mittel (52) eine Textur (64) vorgesehen ist, die an den einander zugewandten Stirnflächen der Deckel (16,18) und des Gehäusekörpers (14) ausgebildet ist und dass die Textur (64) senkrecht zur Radialrichtung verläuft.
- Mehrteilig aufgebautes Gehäuse nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der wenigstens eine Deckel (16, 18) und der Gehäusekörper (14) aus unterschiedlichen Materialien bestehen und dass das Material des Deckels (16, 18) eine höhere Festigkeit als das Material des Gehäusekörpers (14) hat.
- Mehrteilig aufgebautes Gehäuse nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Gehäusekörper (14) als Strangpreßprofil mit einer durchgehende Ausnehmung (12) ausgebildet ist und dass die Ausnehmung (12) an beiden Enden von Deckeln (16, 18) verschlossen ist.
- Mehrteilig aufgebautes Gehäuse nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die dem Gehäusekörper (14) zugewandte Stirnfläche des Deckels (16, 18) ballig nach außen gewölbt ist und dass sich die Wölbung wenigstens senkrecht zur Radialrichtung erstreckt.
- Mehrteilig aufgebautes Gehäuse für eine hydraulische Arbeitsmaschine (10), insbesondere für eine Zahnradmaschine (Pumpe oder Motor), mit einem Gehäusekörper (14), der zur Ausbildung einer ein Triebwerk (24) aufnehmenden und mit Betriebsdruck beaufschlagbaren Triebwerkskammer (30) mit einer Ausnehmung (12) versehen ist, die zu wenigstens einer Stirnseite des Gehäusekörpers (19) hin offen ist, und in dem sich radial zur Triebwerkskammer (30) verlaufende und an der Umfangsfläche mündende Versorgungskanäle (48, 50) befinden, und mit einem die Triebwerkskammer (30) an einer offenen Stirnseite des Gehäusekörpers (14) verschließenden Deckel (16, 18), der mit Schrauben (26) an die Stirnseite des Gehäusekörpers (14) angedrückt ist, dadurch gekennzeichnet, dass die dem Gehäusekörper (14) zugewandte Stirnfläche des Deckels (16, 18) ballig nach außen gewölbt ist und dass sich die Wölbung wenigstens senkrecht zur Radialrichtung erstreckt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10011708A DE10011708A1 (de) | 2000-03-10 | 2000-03-10 | Mehrteilig aufgebautes Gehäuse |
DE10011708 | 2000-03-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1132619A2 EP1132619A2 (de) | 2001-09-12 |
EP1132619A3 EP1132619A3 (de) | 2002-06-12 |
EP1132619B1 true EP1132619B1 (de) | 2005-03-02 |
Family
ID=7634231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01102964A Expired - Lifetime EP1132619B1 (de) | 2000-03-10 | 2001-02-08 | Mehrteilig aufgebautes Gehäuse |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1132619B1 (de) |
DE (2) | DE10011708A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006030917B4 (de) | 2006-06-26 | 2018-08-16 | Pierburg Gmbh | Ölpumpen- und Vakuumpumpenmodul |
DE102014221378B3 (de) * | 2014-10-21 | 2015-09-24 | Magna Powertrain Bad Homburg GmbH | Vorrichtung zur Druckkompensation |
CN107762718B (zh) * | 2016-08-16 | 2020-03-17 | 博罗承创精密工业有限公司 | 一种气动马达 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1267986B (de) * | 1956-03-14 | 1968-05-09 | Bosch Gmbh Robert | Zahnradpumpe |
US3494293A (en) * | 1968-06-03 | 1970-02-10 | Arthur R Braun | Wobble pump |
ZA742498B (en) * | 1973-04-27 | 1975-04-30 | Dana Corp | Gear pump |
DE2510496C3 (de) * | 1975-03-11 | 1978-07-20 | Robert Bosch Gmbh, 7000 Stuttgart | Zahnradmaschine (Pumpe oder Motor) |
DE3324831A1 (de) * | 1982-07-24 | 1984-03-22 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Baueinheit |
DE19622519A1 (de) * | 1996-06-05 | 1997-12-11 | Eckerle Rexroth Gmbh Co Kg | Hydraulische Maschine |
-
2000
- 2000-03-10 DE DE10011708A patent/DE10011708A1/de not_active Withdrawn
-
2001
- 2001-02-08 DE DE50105438T patent/DE50105438D1/de not_active Expired - Fee Related
- 2001-02-08 EP EP01102964A patent/EP1132619B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10011708A1 (de) | 2001-09-20 |
DE50105438D1 (de) | 2005-04-07 |
EP1132619A3 (de) | 2002-06-12 |
EP1132619A2 (de) | 2001-09-12 |
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