阅读说明：本技术 用于车辆的液压供给系统 (Hydraulic pressure supply system for vehicle ) 是由 N·库伦 F·艾尔威施格 T·斯蒂克尔 M·克勒夫 B·希尔特 于 2020-04-22 设计创作，主要内容包括：本发明涉及一种用于至少一个车辆、尤其是轨道车辆的液压供给系统(10),其具有至少一个驱动马达(12)、至少一个法兰(14)、至少一个液压泵(16)和至少一个控制板(18),所述控制板用于接纳和/或控制液压供给系统(10)的另外的电的和/或液压的构件(20),所述法兰(14)在已装配的状态下固定在驱动马达(12)和液压泵(16)上,以便于它们相互的机械耦联,并且,该法兰(14)固定在控制板(18)上,该法兰(14)还具有至少一个用于将液压泵(16)与控制板(18)耦联的连接器(26),并且,该法兰(14)具有至少一个用于将驱动马达(12)与控制板(18)电耦联的电耦联元件(28)。(The invention relates to a hydraulic supply system (10) for at least one vehicle, in particular a rail vehicle, having at least one drive motor (12), at least one flange (14), at least one hydraulic pump (16) and at least one control panel (18), for receiving and/or controlling further electrical and/or hydraulic components (20) of the hydraulic supply system (10), the flange (14) is fixed in the assembled state on the drive motor (12) and the hydraulic pump (16) in order to facilitate the mechanical coupling thereof to one another, and, the flange (14) is fixed to the control panel (18), the flange (14) further having at least one connector (26) for coupling the hydraulic pump (16) with the control panel (18), and, the flange (14) has at least one electrical coupling element (28) for electrically coupling the drive motor (12) to the control board (18).)

1. Hydraulic supply system (10) for at least one vehicle, in particular a rail vehicle, having at least one drive motor (12), at least one flange (14), at least one hydraulic pump (16) and at least one control panel (18) for receiving and/or controlling further electrical and/or hydraulic components (20) of the hydraulic supply system (10), wherein the flange (14) is fastened in the assembled state to the drive motor (12) and to the hydraulic pump (16) in order to facilitate a mechanical coupling of the drive motor and the hydraulic pump to one another, and wherein the flange (14) is fastened to the control panel (18), the flange (14) further having at least one connector for coupling the hydraulic pump (16) to the control panel (18), the flange (14) also has at least one electrical coupling element (28) for electrically coupling the drive motor (12) to the control board (18).

2. The hydraulic supply system (10) according to claim 1, characterized in that the flange (14) is an integral component of the drive motor (12), wherein at least one mechanical receptacle for the hydraulic pump (16) is formed by means of the flange (14).

3. The hydraulic supply system (10) as claimed in claim 1 or 2, characterized in that the connector (26) is configured as at least one hydraulic line and/or as at least one hydraulic bore.

4. The hydraulic supply system (10) as claimed in one of claims 1 to 3, characterized in that the electrical coupling element (28) is configured as at least one flange-cable feedthrough and/or as at least one flange-cable blank.

5. The hydraulic feed system (10) as claimed in one of the preceding claims, characterized in that the flange (14) has at least one flange housing (14a) in which the electrical coupling element (28) and/or the connector (26) are integrated.

6. The hydraulic feed system (10) as claimed in one of the preceding claims, characterized in that the hydraulic feed system (10) has at least one control and/or regulating device (24) which, in the assembled state, is electrically connected to the drive motor (12) by means of the control board (18) and/or the electrical coupling element (28).

7. The hydraulic feed system (10) as claimed in one of the preceding claims, characterized in that the drive motor (12) and the hydraulic pump (16) are mechanically fixed in the fixed state by means of a flange (14) on at least one side (18a) of the control plate (18), in particular on one wide side (18 a).

8. The hydraulic feed system (10) as claimed in one of the preceding claims, characterized in that the flange (14) has at least one shaft channel (30) in which an end (32a) of at least one motor shaft (32) of the drive motor (12) and an end (34a) of at least one pump shaft (34) of the hydraulic pump (16) are coupled in a rotationally fixed manner by means of at least one clutch (36).

9. Hydraulic feed system (10) according to one of the preceding claims, characterized in that at least one bearing device (50) for supporting a motor shaft (32) is provided in the flange (14).

10. The hydraulic feed system (10) as claimed in one of the preceding claims, characterized in that at least one first seal (42) is provided between the flange (14) and the hydraulic pump (16) and/or at least one second seal (44) is provided between the flange (14) and the control panel (18) in the assembled state.

11. The hydraulic feed system (10) as claimed in one of the preceding claims, characterized in that the hydraulic feed system (10) has at least one hydraulic tank (22) in which the drive motor (12) and the flange (14) as well as the hydraulic pump (16) are arranged in the assembled state.

12. Hydraulic feed system (10) according to one of the preceding claims, characterized in that the flange (14) has at least one further hydraulic line and/or at least one further hydraulic bore, by means of which a hydraulic tank (22) and the control plate (18) can be connected.

13. The hydraulic feed system (10) as claimed in any one of the preceding claims, characterized in that the flange (14) has at least one cooling body.

14. The hydraulic feed system (10) as claimed in any one of the preceding claims, characterized in that the flange (14) is arranged between the drive motor (12) and the hydraulic pump (16) in an assembled and deliverable state.

Technical Field

The invention relates to a hydraulic supply system for at least one vehicle, in particular a rail vehicle, having at least one drive motor, at least one flange, at least one hydraulic pump and at least one control panel for receiving and/or controlling further electrical and/or hydraulic components of the hydraulic supply system.

Background

In general, the function of a hydraulic supply system is to provide a controlled or regulated (i.e. as required) hydraulic pressure or mass flow to a hydraulic consumer of the rail vehicle (e.g. a leveling cylinder, a brake system, other hydraulic functions).

The constant technical development in vehicle construction and in particular in rail vehicle construction requires a continuously reduced installation space requirement, while the functional density remains at least constant, in order, for example, to integrate additional functional elements into the vehicle, to save weight and material and/or to ensure simpler production or assembly.

This requirement can also be transferred to hydraulic supply systems for rail vehicles, or also hydraulic units, which likewise take up less installation space, weight and material while maintaining a constant functional range.

Such hydraulic supply systems or hydraulic supply units are already known from the prior art.

DE8204096U1 therefore shows a device for fastening a pump unit, which is formed by an electric motor, a pump mount and a pump (in particular a hydraulic pump), to a holding device, wherein an annular rubber-metal element is also provided, which is arranged between a flange of the pump mount and the holding device.

Furthermore, DE19612582a1 discloses a drive unit for a vehicle, which has an electric motor and a hydraulic pump with a suction opening and a pressure line for a hydraulic drive mounted on the vehicle. The pump can be driven by the shaft of the motor. For noise reduction and/or for improved explosion protection at the same time, the electric motor and the pump are preferably placed together as a structural unit in the hydraulic tank while the heat dissipation is good.

Furthermore, DE102004032256B3 shows a hydraulic unit for a ground conveyance, which has a motor pump unit placed directly on a tank; a return filter having an elongate filter housing for a filter element, which can be introduced into the tank through an opening, a hose connector and a discharge opening, wherein the filter element is arranged in a flow path between the hose connector and the discharge opening; a return hose between the motor pump unit and the hose connection, wherein the return hose extends inside the tank and the hose connection is arranged inside the tank, and a closure device for the return filter.

Furthermore, WO2017/077060a1 discloses a hydraulic device for a rail vehicle, which hydraulic device comprises a tank region for hydraulic fluid, a motor having a pump for pumping the hydraulic fluid, a hydraulic circuit board for providing a hydraulic fluid path and for receiving a hydraulic component, a control region for actuating the hydraulic component, and a housing. The tank region and the control region are disposed on opposite sides of the hydraulic circuit board.

Due to the design of the hydraulic devices or hydraulic units according to the prior art, a construction-space-specific optimization always results, by means of which the functional density of such a hydraulic supply system can be further optimized.

Disclosure of Invention

The object of the present invention is to improve a hydraulic supply system of the type mentioned at the outset in an advantageous manner, in particular in such a way that it has a higher functional density, operates more safely, and is optimized with regard to installation space, weight and cost.

According to the invention, this object is achieved by a hydraulic supply system having the features of claim 1. It is provided according to this that a hydraulic supply system for at least one vehicle (in particular a rail vehicle) is provided with at least one drive motor, at least one flange, at least one hydraulic pump and at least one control board for receiving and/or controlling further electrical and/or hydraulic components of the hydraulic supply system, wherein the flange is fastened in the assembled state to the drive motor and the hydraulic pump in order to mechanically couple them to one another and is fastened to the control board, wherein the flange also has at least one connector for coupling the hydraulic pump to the control board and has at least one electrical coupling element for electrically coupling the drive motor to the control board.

The connector may in particular be a hydraulic coupling, such as a hydraulic line. Any other suitable coupling or connection is also conceivable.

The invention is based on the basic idea of providing a hydraulic supply system with a flange in the context of the ever increasing installation space requirements in rail vehicle construction in order to connect the drive motor and the hydraulic pump to one another and at the same time to increase functional integration. The flange improves the integration of additional functions, in particular, ensures the electrical and hydraulic coupling of the drive motor and the hydraulic pump to the control panel. The control board forms an interface between the electrical and/or hydraulic components received by it (such as valves, lines, fittings or operating elements) and the drive motor and the hydraulic pump which supplies hydraulic pressure to these components. Furthermore, by means of the flange, on the one hand, hydraulic fluid loaded with the desired operating pressure can be introduced into the control plate and, on the other hand, the supply and the control or regulation of the drive motor can take place. The flange is designed such that the cables required for this purpose are not connected to the hydraulic fluid. A more compact hydraulic supply system is thus provided by the high functional integration in the flange, which hydraulic supply system can meet the continuously increasing installation space requirements as described above in a better or more suitable manner.

Furthermore, it can be provided that the flange is an integral part of the drive motor, wherein at least one mechanical receptacle for the hydraulic pump is formed by means of the flange. The design of the flange as an integral component of the drive motor allows a particularly space-saving coupling between the flange and the drive motor, so that the required installation space of the hydraulic supply system can be further reduced or optimized. The flange forms an integral part of the drive motor in such a way that the flange and the drive motor form a structurally co-designed structural unit in the assembled state. The common structural unit can be realized in the assembled state by means of a common housing or by means of a common housing composite.

The drive motor can be configured, for example, as an electric motor, the rotational speed, the torque or the output power resulting therefrom of which can be regulated or controlled. The electric motor can be designed as a synchronous motor or as an asynchronous motor. The hydraulic pump is designed as a positive displacement pump (Pumpe), which is also adjustable in terms of the mass flow to be delivered and the pump pressure of the controlled or regulated drive motor. The hydraulic pumps can be of the vane-type (rotary slide valve pump), gear pump (internal or external gear), screw pump, axial piston pump (inclined shaft or swash plate), radial piston pump (internal or external load), reciprocating piston pump, for example.

Furthermore, it is conceivable for the connector to be configured as at least one hydraulic line and/or as at least one hydraulic bore. The design as a hydraulic line ensures a direct and loss-optimized flow path or feed path between the control plate and the hydraulic pump via the flange. For this purpose, the hydraulic lines can either be guided in corresponding bores inside the flange or can be guided or fixed thereto, for example in the region of the flange or adjacent thereto (for example outside the flange), by means of corresponding retaining devices. A hydraulic line is generally understood to mean any technical guide element or device which is suitable for guiding hydraulic fluid or hydraulic oil pressurized by a hydraulic pump to a control panel in a defined manner. In particular, a hydraulic line is understood to mean, in particular, a hydraulic hose or pipe which connects the hydraulic pump to the control panel by means of a flange. The term "hydraulic bore" is understood to mean, in particular, a slot of a flange, wherein the type and shape of the slot can be varied. Thus, the hydraulic holes may be configured as any form of bore, groove, void, channel, opening, pocket, or the like.

It is furthermore conceivable for the electrical coupling element to be designed as at least one flange-cable feedthrough and/or as at least one flange-cable blank. The flange-cable feedthroughs and/or flange-cable blank ensure a reliable separation of the electrical coupling element from the connector. This separation is important and is advantageous in particular in respect of a reliable and as trouble-free as possible overall operation of the hydraulic supply system. The flange-cable feedthroughs can be configured as recesses or bores of the flange, in which the one or more cables extend in the assembled state for the supply and control or regulation of the drive motor. Additionally or alternatively, the electrical coupling element can have a flange-cable hollow tube, which is configured as a hose (e.g., a corrugated hose) or as a component suitable in a similar manner. The electrical coupling element is therefore understood to be a device by means of which the drive motor is supplied with electrical energy or can be controlled and regulated, starting from the control board. The electrical coupling element can therefore be understood as a guide or a mounting for the one or more cables for supplying power and for controlling or regulating the drive motor, or as an integral electrical coupling element together with these cables. In principle, however, it is also conceivable for the wires or cables to be guided or arranged outside the flange.

It is also possible that the flange has at least one flange housing in which the electrical coupling element and/or the connector is integrated. The integration facilitates a very space-saving design of the flange, since the structural dimensions of the electrical coupling element and/or the connector are small relative to the overall dimensions of the flange housing and can therefore be integrated well within the flange housing. Furthermore, the integration shortens the flow path of the hydraulic oil from the hydraulic pump to the control board, or shortens the line path of the cable from the drive motor to the control board. Due to this shortening, the hydraulic supply system can be operated more efficiently, so that the overall efficiency is further improved.

Furthermore, it can be provided that the hydraulic supply system has at least one control and/or regulating device which, in the assembled state, is electrically connected to the drive motor by means of a control panel and/or an electrical coupling element. The control and/or regulating device is used indirectly to convey hydraulic oil from the hydraulic pump to the control panel as required, in such a way that it can control or regulate the rotational speed or torque of the drive motor. In particular, this (open/closed-loop) control and/or regulating device can also be understood as a device for (open-loop) controlling the drive motor. Furthermore, the control and/or regulating device may be understood as a device for purely (closed-loop) regulating the drive motor in response to the required hydraulic parameters of the hydraulic supply system. The control and/or regulating device can also assume the control and regulation task of the drive motor. In principle, it is also conceivable for the motor to be implemented in an uncontrolled and/or unregulated manner. Embodiments with integrated conditioning electronics are also conceivable.

It is likewise conceivable for the drive motor and the hydraulic pump to be mechanically fastened in the fastened state by means of flanges on at least one side of the control panel, in particular on one broad side. The mechanical fastening on one broad side of the control panel allows a very space-saving lateral arrangement of the drive motor-hydraulic pump structural assembly on the control panel. This arrangement makes it possible firstly to achieve an arrangement which does not exceed the dimensions of the wide side of the control panel, so that an overall arrangement with optimized installation space can be achieved between the control panel, the drive motor, the flange and the hydraulic pump. This overall arrangement, which is optimized with respect to installation space, also allows more structural freedom to be achieved in order to further optimize the control and/or regulating device, also with respect to space-saving design options. Finally, the drive motor is provided in the region of the control and/or regulating device in previous solutions of the prior art. In addition, the drive motor and the hydraulic pump can be fastened to the control panel in a structurally very simple manner by means of the single component, i.e. the flange, so that additional fastening elements for the drive motor and/or the hydraulic pump can be omitted for this purpose.

It is also conceivable for the flange to have at least one shaft channel, in which an end of at least one motor shaft of the drive motor and an end of at least one pump shaft of the hydraulic pump are coupled in a rotationally fixed manner by means of at least one clutch. In addition to receiving or integrating the electrical coupling element and/or the connector and mechanically coupling the drive motor and the hydraulic pump, the flange can also ensure a protected, rotation-resistant coupling of the motor shaft and the pump shaft. As is usual in the prior art, the shaft channel in the control plate can therefore be dispensed with, which saves additional installation space or can provide additional installation space for integrating other electrohydraulic components. In this respect, on the one hand, the manufacture and construction of the control panel can be simplified. Furthermore, the elimination of the shaft channel in the control plate reduces the electrical and hydraulic line connection complexity. On the other hand, the functional density of the flange can be increased again, which leads to a more compact overall structure.

It is also possible that at least one bearing device for supporting the motor shaft is provided in the flange. The additional bearing device makes it possible to increase the effective bearing distance relative to a further bearing device of the drive motor, which is necessarily present. As a result, the transverse forces acting on the drive shaft and on the drive motor can be reduced overall due to the increased axial bearing distance. The support device and the drive motor can therefore also be adapted or optimized overall according to requirements with regard to size and weight. Thus, another possibility is shown, namely that the drive motor as well as the hydraulic supply system as a whole can be designed more compact and high-performance by means of further functional integration of the flange.

In addition, it can be provided that, in the assembled state, at least one first seal is arranged between the flange and the hydraulic pump and/or at least one second seal is arranged between the flange and the control plate. Since the coupling regions between the flange and the hydraulic pump and between the flange and the control plate rest against one another in the assembled state, particularly in this region, an extremely effective and reliable seal can be achieved in a simple manner in terms of construction. In the case of components resting against one another, the sealing action can be ensured in particular very simply and reliably by elastic sealing elements (e.g. sealing rings) on account of the high surface pressure. However, reliable operation of the hydraulic supply system is only ensured if the hydraulic component or connector is safely separated from the electrical coupling element or components, whereby a reliable seal is particularly important. In this sense, the further seal also serves to reliably seal the shaft passage, in particular with regard to the connector for the connection between the hydraulic pump and the control panel. It is also conceivable that at least one third seal for the electrical coupling element is provided between the flange and the control plate. This seal has substantially the same function as the first seal and the second seal described above.

It is also conceivable for the hydraulic supply system to have at least one hydraulic tank in which the drive motor and the flange as well as the hydraulic pump are arranged in the assembled state. The integration of the assembly or structural unit of the drive motor, the flange and the hydraulic pump in the tank allows the further possibility of designing the hydraulic supply system as a whole very compact and space-saving. Furthermore, since the hydraulic pump can draw hydraulic oil or hydraulic fluid directly from the tank, a part of the supply line of the hydraulic pump is omitted, which likewise has a favorable effect on the weight and installation space of the hydraulic supply system. Furthermore, a more efficient cooling of the above-described structural assembly is achieved by this integration. Furthermore, the tank can be constructed very simply, since the structural construction of the flange does not require the provision of a hydraulic supply line from the tank to the control panel or the tank must be connected to the control panel in the usual manner, except via the flange.

It is also conceivable for the flange to have at least one further hydraulic line and/or at least one further hydraulic opening, by means of which the hydraulic tank and the control plate can be connected. As already explained above, the reservoir can also be constructed very simply by means of additional hydraulic lines and/or hydraulic bores, since the structural construction by means of the flange does not require the provision of a hydraulic supply line from the reservoir to the control plate. A very simple design can thus be provided in order to return the hydraulic oil or hydraulic fluid required by the hydraulic supply system to the tank again and thus to form a closed circuit.

Furthermore, the flange can have at least one cooling body. The cooling body can thermally relieve the flange itself and can also form a heat sink for the drive motor and the hydraulic pump. The drive motor and the hydraulic pump can thus be thermally relieved and cooled more effectively or more efficiently, so that a longer service life and a more reliable mode of operation of the hydraulic supply system are achieved. Furthermore, it can be provided that the reservoir is also connected to a hydraulic oil cooler. Thereby, the hydraulic oil can be cooled first before entering the hydraulic pump, so that overheating of the hydraulic supply system can be avoided.

Furthermore, it can be provided that the flange is arranged between the drive motor and the hydraulic pump in the assembled and serviceable state. This arrangement allows a very space-saving and simply constructed mechanical connection or coupling between the drive motor and the hydraulic pump. Furthermore, the two ends of the pump shaft and the drive shaft can be protected, sealed and connected to one another in a rotationally fixed manner within the flange. Furthermore, in such a flange arrangement, the shaft ends can be arranged substantially aligned with one another, which additionally simplifies the mechanical construction. The fastening of the drive motor or its housing and the hydraulic pump is also very simple here, since they can be fastened only very space-effectively on the opposite side of the flange.

Drawings

Further details and advantages of the invention will now be explained in more detail with reference to the embodiments shown in the drawings.

In the drawings:

FIG. 1 shows a schematic partial perspective view of an embodiment of a hydraulic feed system according to the present invention;

FIG. 2 shows a schematic overall top view of the embodiment of the hydraulic supply system according to FIG. 1; and

fig. 3 shows a schematic partial cross-section of the drive motor, the flange, the control plate and the hydraulic pump of the hydraulic feed system according to fig. 1.

Detailed Description

Fig. 1 shows a partial schematic perspective view of an exemplary embodiment of a hydraulic supply system 10 according to the invention for a rail vehicle (not shown in fig. 1).

The hydraulic feed system 10 includes a drive motor 12, a flange 14, a hydraulic pump 16, and a control board 18 for receiving and controlling additional electrical and hydraulic components 20 of the hydraulic feed system 10.

The flange 14 is fixed in the assembled state to the drive motor 12 and the hydraulic pump 16, in order to facilitate their mechanical coupling to one another.

The flange 14 is further secured to the control panel 18.

The control plate 18 is configured as a square plate according to fig. 1, having a first broad side 18a and a second broad side 18b arranged opposite one another in parallel and four narrow sides adjoining the broad sides perpendicularly.

The aforementioned components or components according to fig. 1 are coupled or connected to one another as follows:

the drive motor 12 and the hydraulic pump 16 are connected to one another in the fixed state by means of the flange 14 in such a way that their respective center axes are substantially aligned with one another.

Furthermore, the centerlines of the drive motor 12 and the hydraulic pump 16 are substantially parallel to the longitudinal axis of the control panel in the assembled and fixed state.

All statements as substantially characterized by the word should be understood as mutually admissible dimensions well known to those skilled in the art within the scope of the present invention.

The drive motor 12 and the hydraulic pump 16 are mechanically fixed to one wide side 18a of the control plate 18 by flanges in a fixed state.

The fastening is formed by four fastening screws which, in the assembled state, extend perpendicularly to the center line of the drive motor 12 and the center line of the hydraulic pump 16.

The four fixing screws together with the flange 14 and the control plate 18 form a symmetrical fixing profile.

More or less than four set screws may be provided for securing the flange 14 to the control panel 18.

Furthermore, a flange 18 is arranged between the drive motor 12 and the hydraulic pump 16 in the assembled and serviceable state.

Fig. 2 shows a schematic top view of the embodiment of the hydraulic supply system 10 according to the invention according to fig. 1.

The hydraulic supply system 10 is divided into two sub-areas 10a, 10b, wherein the control plate 18 is configured as a hydraulic joint element between the sub-areas 10a, 10 b.

As explained above in connection with fig. 1, the control panel 18 has two opposite broad sides 18a, 18b, to which the two sub-regions 10a, 10b are connected.

The first subregion 10a is formed adjacent to a wide side 18a, to which wide side 18a structural unit comprising the drive motor 12, the flange 14 and the hydraulic pump 16 is fastened.

The first subregion 10a has or is formed by a hydraulic tank 22, in which the drive motor 12 and the flange 14 and the hydraulic pump 16 are arranged in the assembled state.

The hydraulic pump 16 also has on its suction side a suction for hydraulic oil or hydraulic fluid, the open ends of which can terminate at different heights inside the hydraulic tank 22.

The hydraulic feed system 10 also has (open and closed loop) control and regulation means 24.

The control and regulating device 24 may also be understood as an (open-loop) control device 24 which is configured only for the hydraulic supply system 10.

Furthermore, the control and regulating device 24 may also be further understood to be configured only as a (closed-loop) regulating device 24 for the hydraulic supply system 10.

The second sub-area 10b adjoining or connected to the second broad side 18b of the control panel 18 thus comprises a control and adjustment device 24 and is thus configured as a control and adjustment area.

The second sub-region 10b also comprises a further hydraulic or electrohydraulic component 20, for example a switching valve, a control valve, a regulating valve or a pressure limiter, which is hydraulically connected to the control plate 18.

In addition, these components 20 are partially received by the control panel 18.

The control plate 18 itself has a plurality of hydraulic lines or hydraulic bores that extend within the interior of the control plate.

The hydraulic lines or bores form different hydraulic paths between the hydraulic pump 16 and the hydraulic or electro-hydraulic component 20.

Furthermore, it can be seen in fig. 2 that the flange 14 is an integral part of the drive motor 12.

Furthermore, a mechanical receptacle for a hydraulic pump 16 is formed on the drive motor by means of the flange 14.

Fig. 3 shows a schematic partial section through the drive motor 12, the flange 14 and the hydraulic pump 16 of the hydraulic feed system 10 according to the invention according to fig. 1 and the control panel 18.

The flange 14 has a connector 26 for the hydraulic coupling of the hydraulic pump 16 to the control panel 18 according to fig. 3.

In addition, the flange 14 has an electrical coupling element 28 for electrically coupling the drive motor 12 with the control board 18.

The flange 14 further comprises a flange housing 14a into which the electrical coupling element 28 and the connector (also referred to as hydraulic coupling element) 26 are integrated.

The connector 26 is configured as a hydraulic bore.

The hydraulic bores form a substantially rectangular flow channel or flow path within the flange housing 14a and are formed by two partial hydraulic bores.

According to another embodiment (not shown in fig. 3), it is also conceivable for the connector 26 to be configured as a hydraulic line.

The electrical coupling element 28 is designed as a flange-cable feedthrough.

The flange cable feed-through is formed inside the flange housing 14a as a substantially rectangular flange cable feed-through and is likewise formed by two partial bores.

A plurality of cables extend within the flange-cable leadthrough for the power supply and control or regulation of the drive motor 12.

These cables extend from the control and regulating device 24 to the control board 18 and from the control board 18 to the drive motor 12.

The electrical coupling element 28 can therefore be understood as a flange cable feedthrough alone or in combination with the aforementioned cables.

According to a further embodiment (not shown in fig. 3), it is likewise conceivable for the electrical coupling element 28 also to have a flange-cable hollow tube which extends inside the flange-cable leadthrough. In addition, the flange 14 or the flange housing 14a has a shaft passage 30.

The shaft channel 30 is configured as a cylindrical channel recess in the central region of the flange housing 14 a.

In the shaft channel 30, an end 32a of a motor shaft 32 of the drive motor 12 and an end 34a of a pump shaft 34 of the hydraulic pump 16 are coupled in a rotationally fixed manner by means of a clutch 36.

The clutch 36 is designed here as a dog clutch with an integrated damping element 36 a.

The aforementioned components or components according to fig. 3 are coupled or connected to one another as follows:

in the assembled state according to fig. 3, the flange 14 forms a coupling region with the drive motor 12, the hydraulic pump 16 and the control plate 18.

In the assembled state, the drive motor 12 and the flange 14 form a flange-motor-side coupling region 38 a.

In the assembled state, the hydraulic pump 16 and the flange 14 form a flange-pump-side coupling region 38 b.

In the assembled state, the control plate 18 forms, on its wide side 18a, a flange-control plate-side coupling region 40 with the flange 14.

The flange 14 or the flange housing 14a also has a pump-side hydraulic connection 14b and a control plate-side hydraulic connection 14 c.

Furthermore, the hydraulic pump 16 comprises a first hydraulic connection 16a on the flange side and the control plate 18 correspondingly comprises a second hydraulic connection 18c on the flange side.

The flange housing 14a also comprises a motor-side feedthrough interface 14d and a control-board-side feedthrough interface 14e, which each delimit a cable feedthrough 28 within the flange 14.

The motor-side feedthrough interface 14d and the control-board-side feedthrough interface 14e each form a connection or feedthrough for cables for controlling or regulating and supplying the drive motor 12.

The control board 18 further comprises a control board cable feed-through 18d, which control board cable feed-through 18d is delimited on the flange side by a flange-side feed-through interface 18 e.

The pump-side hydraulic connection 14b of the flange 14 and the first flange-side hydraulic connection 16a of the hydraulic pump 16 are directly connected or coupled to one another in a flange-pump-side coupling region 38 b.

The flange-side second hydraulic connection 18c of the control plate 18 and the control-plate-side hydraulic connection 14b of the flange 14 are in turn connected or coupled directly to one another at a flange-control-plate-side coupling region 40.

Thereby, the flange-side first hydraulic joint 16a and the flange-side second hydraulic joint 18c of the hydraulic pump 16 and the control plate 18 are connected to each other via the connector 26.

Furthermore, the control-board-side feedthrough interface 14e of the flange 14 and the flange-side feedthrough interface 18e of the control board 18 are also directly connected to one another on the flange-control-board-side coupling region 40.

Furthermore, in the assembled state, a first seal 42 is provided between the flange 14 and the hydraulic pump 16.

Therefore, the first seal 42 is arranged on the flange-pump-side coupling region 38b at the transition between the flange-side first hydraulic port 16a of the hydraulic pump 16 and the pump-side hydraulic port 14b of the flange 14.

Furthermore, a second seal 44 is provided on the flange-control-plate-side coupling region 40 at the transition between the control-plate-side hydraulic connection 14c of the flange 14 and the second hydraulic connection 18c of the control plate 18 on the flange side.

Furthermore, a third seal 46 is additionally provided on the flange-control-plate-side coupling region 40 at the transition between the control-plate-side feed-through connection 14e of the flange 14 and the flange-side feed-through connection 18e of the control plate 18.

Furthermore, a further fourth seal 48 is provided between the flange 14 and the drive motor 12.

A fourth seal 48 is arranged on the flange-motor-side coupling region 38 a.

Furthermore, a fifth seal 48a for sealing off the shaft channel 30 is provided on the flange-pump-side coupling region 38b at the pump-side end of the shaft channel 30 and on the hydraulic pump 16.

Furthermore, a bearing device 50 for supporting the motor shaft 32 is provided in the flange 14 according to fig. 3.

The bearing arrangement 50 is designed as a rolling bearing, for example in the form of a ball bearing or a cylindrical roller bearing, and is received on its outer ring in a housing shoulder of the flange housing 14a and is fixed by a fixing ring.

The housing shoulder is connected axially to the motor-side end of the shaft channel 30 and thus forms a stepped section of the shaft channel 30.

The bearing arrangement 50 is also received radially on its inner race by the outer circumferential surface of the motor shaft 32 and is fixed axially on the shaft shoulder.

If the drive motor 12 is configured as a brushless motor, additional control or regulating electronics can be provided in the intermediate space between the housing shoulder of the shaft channel 30 and the main body of the drive motor 12.

The flange 14 may additionally have a further hydraulic opening (not shown in fig. 3), by means of which the hydraulic tank 22 and the control plate 18 can be connected.

According to a further embodiment, the flange 14 may additionally or alternatively also have a further hydraulic line, by means of which the hydraulic tank 22 and the control plate 18 can be connected.

The flange 14 also comprises a cooling body (not shown in fig. 3).

For this purpose, the flange 14 or the flange housing 14a thereof can have a plurality of cooling ribs or cooling ribs.

The function of the hydraulic supply system 10 according to the invention and in particular of the flange 14 can now be described as follows:

in general, the hydraulic supply system 10 functions to provide a hydraulic consumer (e.g., a leveling cylinder, a force generator, other hydraulic functions) of the rail vehicle with a controlled or regulated hydraulic pressure or mass flow, i.e., as required.

To this end, the flange 14 has the function of mechanically receiving the hydraulic pump 16 or of providing a fixing means for the hydraulic pump on the drive motor 12.

In this case, the flange 14 is designed in the assembled state as an integral or one-piece component of the electric motor 12.

On the other hand, the flange 14 is used to send control and regulating commands from the control and regulating device 24, which are transmitted to the drive motor 12 by means of supply and control cables.

In this case, these cables run within the flange 14 in an electrical coupling element 28 provided for this purpose in the form of a cable feedthrough to the drive motor 12 or its electronics (in the case of a brushless motor).

Alternatively, it is also conceivable for the drive motor 12 to be implemented in an uncontrolled and/or unregulated manner, so that integrated control or regulating electronics can be dispensed with.

Furthermore, a hydraulic connection can be provided via the flange 14 between the pressure side of the hydraulic pump 16 and the pressure input of the control plate 18 in order to provide the control plate 18 with a desired hydraulic operating pressure.

The flange 14 also has the function of providing a mechanical receptacle for the bearing 50 of the drive motor 12.

Furthermore, the flange 14 forms a central fastening point for the structural assembly consisting of the drive motor 12, the flange 14 and the hydraulic pump 16 on the control panel 18.

As shown in fig. 3, the drive motor 12 and the hydraulic pump are both screwed to the flange 14 by screws.

The flange 14 is in turn screwed to the control plate 18 by means of screws.

The pump shaft and the two ends 32a, 34a of the motor shafts 32, 34 are likewise arranged within the flange 14 and can therefore be protected in particular by seals 42, 44, 46, 48a against the ingress of hydraulic oil from the hydraulic tank 22.

In the case of a brushless drive motor 12, the flange 14 additionally assumes the heat dissipation by means of a cooling body for the control or regulating electronics required for this purpose.

Alternatively, it can be provided that the flange 14 ensures, by means of a further hydraulic opening (not shown in the figures), that the hydraulic oil or hydraulic fluid is simply fed back from the control plate 18 into the hydraulic tank 22.

List of reference numerals

10 hydraulic pressure supply system

10a first sub-area of the hydraulic supply system

10b second sub-area of the hydraulic supply system

12 drive motor

14 Flange

14a flange casing

14b pump side hydraulic joint

14c control board side hydraulic joint

14d motor-side feedthrough

14e controller board side through interface

16 hydraulic pump

First hydraulic joint on flange side of 16a hydraulic pump

18 control panel

18a control plate first broad side

18b second Wide side of control Panel

Second hydraulic joint on flange side of 18c hydraulic pump

18d control panel-cable feed-through

18e flange-side feedthrough

20 additional hydraulic or electrohydraulic elements

22 hydraulic tank

24 control and regulating device

26 connector

28 Electrical coupling element

30 shaft channel

32 motor shaft

End of 32a motor shaft

34 pump shaft

34a pump shaft end

36 clutch

Damping element for 36a clutch

38a flange-motor-side coupling region

38b flange-pump side coupling region

40 flange-control plate-side coupling region

42 first seal

44 second seal

46 third seal

48 fourth seal

48a fifth seal

50 supporting device