EP1178209A2 - Hydraulischer Transformator - Google Patents
Hydraulischer Transformator Download PDFInfo
- Publication number
- EP1178209A2 EP1178209A2 EP01110305A EP01110305A EP1178209A2 EP 1178209 A2 EP1178209 A2 EP 1178209A2 EP 01110305 A EP01110305 A EP 01110305A EP 01110305 A EP01110305 A EP 01110305A EP 1178209 A2 EP1178209 A2 EP 1178209A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- hydrotransformer
- rotor
- roller bearing
- control disc
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2042—Valves
Definitions
- the invention relates to a hydrotransformer in swashplate or inclined axis type with one between the rotor and housing arranged control disc opposite the Housing is rotatable and the angular position of the gear ratio of the hydrotransformer.
- a hydraulic motor is used as the hydrotransformer and a hydraulic pump designates arrangements formed, whose waves are interconnected.
- the engine of the Hydrotransformer is made from a hydraulic network with an embossed Pressure fed.
- the pump delivers pressure medium a tank to a hydraulic consumer.
- the speed the engine can be changed by changing its swallowing volume Taxes.
- the speed at which the pump is driven determines the together with the delivery volume of the pump flow of pressure medium flowing to the consumer.
- both a motor and a pump with adjustable Volume to use.
- the Motor and pump known from WO 99/40318 are hydrotransformers arranged in a common housing.
- the rotors from The motor and pump are designed to form a common rotor summarized.
- the volume is adjusted by turning a common control disc for motor and pump, which the Displacement of the motor and the delivery volume of the pump opposed sense.
- the control disc is between Rotor and housing arranged, one closing the housing End plate in this context a part of the housing forms.
- the constructive Design of the hydrotransformer either outweigh the pressurized sealing surfaces between the rotor and Control disc those between control disc and end plate, so that the control disc from the resulting force is pressed against the end plate of the housing. Thereby friction occurs between the operation of the hydrotransformer the side of the control disk facing away from the rotor and the End plate on. This friction has a negative effect on the Operation of the hydrotransformer.
- the invention has for its object a hydrotransformer to create the type mentioned, in which the Friction between the control disc and the rotor or between the rotor and the housing or the sealing this Cover plate is reduced.
- control disc is over a roller bearing supported against the housing, the direct contact of surfaces pressed against each other, and thus also for the Operation of the hydrotransformer adverse friction.
- One in an end plate of the Pipe held in the housing allows even without the support the control disc on the housing via the roller bearing a simple assembled bearing of the control disc.
- the interior of this Rohrs is the interior of this Rohrs as a channel for the pressure medium.
- the space between another tube forms that concentrically surrounds the first tube and the first tube another channel for the pressure medium.
- Figure 1 shows a section through an inventive trained hydrotransformer 10 'in inclined axis design.
- a shaft 11 is with two tapered roller bearings 12 and 13 in a housing 14 'mounted.
- With the shaft 11 is a drive flange 15 connected.
- a centering piston 16 and a series of working pistons one of which two working pistons 17 and 18 are shown, pivotable stored.
- the number of working pistons is due to the constructive Design of the hydrotransformer 10 ', Six, seven or nine working pistons are common.
- the Centering piston 16 and the working piston 17, 18 and the further working pistons, not shown in FIG. 1 are guided in a rotor 19.
- the control disc 21 ' is on a tube 27 on the end plate 14a held.
- the tube 27 is in the end plate 14a pressed. It serves as a centering for the control disc 21 'and as a channel for the pressure medium.
- the control disc 21 ' is within an angular range from that Tube 27 rotatable.
- Concentric to tube 27 is another Pipe 28 arranged. This pipe has no management function.
- the annular cylindrical space between the tubes 27 and 28 serves as another channel for the pressure medium. Warehousing the control disc 21 'on the tube 27 can also be done without this Rolling bearings arranged between control disc and housing in use advantageously.
- the pressure medium is supplied to the hydrotransformer 10 ' via a channel 30. From there the pressure medium flows through the Space between the tubes 27 and 28 in a channel 31 of the Control disc 21 '.
- the channel 31 stands with one in the figure 1 kidney-shaped recess, not shown, on the Rotor 19 facing side of the control disk 21 'in connection, the pressure medium on the working piston of the rotor 19th distributed.
- the side of the control disk facing the rotor 19 21 ' is provided with two further kidney-shaped recesses, each with a channel 33 and 34 (shown in Figure 4) are connected in the control disk 21 '.
- Channel 33 leads pressure medium via the tube 27 into a channel 35 to the a hydraulic consumer, not shown in the figures connected.
- the channel 34 leads - as in the figure 4 shown - directly into the interior of the housing 14 '.
- On Connection thread 38 is for connecting one leading to the tank Management provided.
- the tank and that of the hydrotransformer 10 'leading to the tank are in the Figures not shown.
- the friction between the control disc 21 'and the rotor 19 is both by the force of between the centering piston 16 and the Rotor 19 arranged disc springs 20 determines the rotor 19 press against the control disc 21 ', as well as through the Force on the pressurized sealing surfaces of the rotor 19 and control disc 21 '.
- FIG. 2 shows a section through another according to the invention trained hydrotransformer 10 "in inclined axis design.
- the hydrotransformers 10 '( Figure 1) and 10 "(FIG. 2) have the same components, these are included provided the same reference numerals. On a new description of these components in connection with FIG. 2 therefore waived.
- the reference numbers of components, their function is the same, but different configurations have different additives.
- the friction between the control disk 21 ' and the rotor 19 is also in this embodiment both by the force of between the centering piston 16 and the rotor 19 arranged disc springs 20 which determines the Press rotor 19 against the control disk 21 ", as well the force on the pressurized sealing surfaces of Rotor 19 and control disc 21 ".
- Figure 3 shows an enlarged view of the control disc 21 "and the end plate 14a of the housing 14" of Hydrotransformer 10 "and the tapered roller bearing 44 between the control disk 21 “and the cover plate 14a. Additionally 3 shows a drive for the adjustment of the Angular position of the control disk 21 "in a schematic representation.
- the peripheral area of the control disk 21 " is one Tooth 45 provided.
- a toothed wheel engages in the toothing 45 46, one on a through the end plate 14a and is held in this mounted shaft 47.
- the angular position the control disc 21 " determines the transmission ratio of the hydrotransformer 10 ".
- the transmission ratio of the hydrotransformer 10 'shown in FIG. 1 can be adjusted in the same way by an appropriate adjustment change the angular position of the control disk 21 '.
- FIG. 4 shows a representation rotated with respect to FIG. 3 the area of the control disk 21 "in the hydrotransformer 10 ".
- the channel 34 is visible, with the so-called tank kidney of the control disk 21 " connects the interior of the housing 14 ".
- One end of the serving as the axis of rotation for the control disk 21 "tube 27 is pressed into a bore in the end plate 14a.
- the other end of the tube 27 is provided with a seal 50, which a rotational movement of the control disc 21 "with respect to Pipe 27 allowed.
- the tube 28, the tube 27 concentric surrounds, has no holding function.
- the end areas of the Pipe 28 are provided with two seals 51 and 52 which both a rotary movement of the control disk 21 "relative to the Tube 28 and a rotational movement of the tube 28 with respect to the Allow end plate 14a.
- the seals are 50 to 52 spherical steel sealing rings, the spherical outer surface of which is small Deviations of the axis of the control disc 21 "compared to the Compensate the axis of the tube 27.
- control disc 21 ' is based on the Ball bearing 41 on the projection 40.
- the ball bearing 41 by a tapered roller bearing be replaced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
- Figur 1
- einen Schnitt durch einen Hydrotransformator in Schrägachsen-Bauart mit einem Kugellager zwischen der Steuerscheibe und dem Gehäuse,
- Figur 2
- einen Schnitt durch einen Hydrotransformator in Schrägachsen-Bauart mit einem Kegelrollenlager zwischen der Steuerscheibe und der Abdeckplatte des Gehäuses,
- Figur 3
- eine vergrößerte Darstellung des Bereichs der Steuerscheibe bei einem Hydrotransformator mit einem Kegelrollenlager zwischen der Steuerscheibe und der Abdeckplatte des Gehäuses und
- Figur 4
- eine gegenüber der Figur 3 gedrehte Darstellung des Bereichs der Steuerscheibe bei einem Hydrotransformator mit einem Kegelrollenlager zwischen der Steuerscheibe und der Abdeckplatte des Gehäuses.
Claims (9)
- Hydrotransformator in Schrägscheiben- oder Schrägachsen-Bauart mit einer zwischen Rotor und Gehäuse angeordneten Steuerscheibe, die gegenüber dem Gehäuse verdrehbar ist und deren Winkelstellung das Übersetzungsverhältnis des Hydrotransformators bestimmt, dadurch gekennzeichnet, daß zwischen Steuerscheibe (21'; 21") und Gehäuse (14'; 14") ein Wälzlager (41; 44) angeordnet ist.
- Hydrotransformator nach Anspruch 1, dadurch gekennzeichnet, daß das Wälzlager (41) auf der dem Rotor (19) zugewandten Seite der Steuerscheibe (21') zwischen dieser und einem ringförmig in das Innere des Gehäuses (14') ragenden Vorsprung (41) des Gehäuses (14') angeordnet ist.
- Hydrotransformator nach Anspruch 1, dadurch gekennzeichnet, daß das Wälzlager (44) auf der von dem Rotor (19) abgewandten Seite der Steuerscheibe (21") zwischen dieser und einer Abschlußplatte (14a) des Gehäuses (14") des Hydrotransformators (10") angeordnet ist.
- Hydrotransformator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Wälzlager (41; 44) im äußeren Bereich der Steuerscheibe (21'; 21") angeordnet ist.
- Hydrotransformator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Wälzlager ein Kugellager (41) ist.
- Hydrotransformator nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Wälzlager ein Kegelrollenlager (44) ist.
- Hydrotransformator in Schrägscheiben- oder Schrägachsen-Bauart mit einer zwischen Rotor und Gehäuse angeordneten Steuerscheibe, die gegenüber dem Gehäuse verdrehbar ist und deren Winkelstellung das Übersetzungsverhältnis des Hydrotransformators bestimmt, insbesondere nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein in einer Abschlußplatte (14a) des Gehäuses (14'; 14") gehaltenes Rohr (27) als Achse für die Steuerscheibe (21'; 21") dient.
- Hydrotransformator nach Anspruch 7, dadurch gekennzeichnet, daß das Rohr (27) zusätzlich als Kanal für das Druckmittel ausgebildet ist.
- Hydrotransformator nach Anspruch 8, dadurch gekennzeichnet, daß ein weiteres Rohr (28) konzentrisch zu dem ersten Rohr (27) angeordnet ist und daß der Raum zwischen den Rohren (27 und 28) als weiterer Kanal für das Druckmittel ausgebildet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10033285A DE10033285A1 (de) | 2000-07-07 | 2000-07-07 | Hydrotransformator |
| DE10033285 | 2000-07-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1178209A2 true EP1178209A2 (de) | 2002-02-06 |
| EP1178209A3 EP1178209A3 (de) | 2003-09-03 |
| EP1178209B1 EP1178209B1 (de) | 2005-01-26 |
Family
ID=7648276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01110305A Expired - Lifetime EP1178209B1 (de) | 2000-07-07 | 2001-04-26 | Hydraulischer Transformator |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1178209B1 (de) |
| DE (2) | DE10033285A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949104A (zh) * | 2017-04-07 | 2017-07-14 | 江苏师范大学 | 一种柱塞式进出油等流量四通液压变压器 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999040318A1 (en) | 1998-02-10 | 1999-08-12 | Innas Free Piston B.V. | Apparatus for executing activities assisted by hydromotors and a hydraulic transformer for use in such an apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1260078A (fr) * | 1960-03-22 | 1961-05-05 | Ct De Rech S Hydrauliques Et E | Pompe à barillet haute pression à débit variable, autorégulatrice |
| US5022310A (en) * | 1989-03-07 | 1991-06-11 | Stewart Robert M | Fluid power transmission |
-
2000
- 2000-07-07 DE DE10033285A patent/DE10033285A1/de not_active Withdrawn
-
2001
- 2001-04-26 DE DE50105172T patent/DE50105172D1/de not_active Expired - Fee Related
- 2001-04-26 EP EP01110305A patent/EP1178209B1/de not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999040318A1 (en) | 1998-02-10 | 1999-08-12 | Innas Free Piston B.V. | Apparatus for executing activities assisted by hydromotors and a hydraulic transformer for use in such an apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949104A (zh) * | 2017-04-07 | 2017-07-14 | 江苏师范大学 | 一种柱塞式进出油等流量四通液压变压器 |
| CN106949104B (zh) * | 2017-04-07 | 2018-05-15 | 江苏师范大学 | 一种柱塞式进出油等流量四通液压变压器 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50105172D1 (de) | 2005-03-03 |
| EP1178209A3 (de) | 2003-09-03 |
| EP1178209B1 (de) | 2005-01-26 |
| DE10033285A1 (de) | 2002-02-14 |
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