Vertical storage

Abstract

Vertical bearing (1) wherein at least one fluid passage is arranged in a wall, which connects a radially inner inlet opening with a radially outer outlet opening, wherein the fluid passage is arranged in an insert (10) which is arranged in a recess of the wall; and / or the outlet opening is offset relative to the inlet opening in the direction of rotation; and / or the inlet opening has a larger free cross-section than the outlet opening.

Description

[0001] The present invention relates to a vertical bearing, in particular a vertical bearing with at least one fluid passage, in particular in a running bell of the vertical bearing, and to a method for producing the at least one fluid passage.

[0002] In plain bearings, especially vertical bearings, so-called raceways are typically used to transmit force into the bearing. These raceways usually rotate with the connected shaft, with separation from the non-rotating segments typically achieved by a lubricating film of fluid, especially oil, coolant, or the like. The movement and friction within the lubricating film necessitate a continuous supply of cool fluid, especially oil, to the lubricating film and the surrounding components for cooling and lubrication.

[0003] The object of the present invention is in particular to improve a vertical bearing.

[0004] This problem is solved by a vertical bearing having the features of claim 1. The dependent claims relate to advantageous embodiments.

[0005] According to one embodiment of the present invention, a vertical bearing is provided. In one embodiment, the vertical bearing has at least one fluid passage in a wall; in particular, at least one fluid passage is arranged in a wall of the vertical bearing. In one embodiment, the at least one fluid passage connects an inlet opening that is at least substantially radial with an outlet opening that is at least substantially radial. In one embodiment, the radial inlet opening is a radially inner opening and / or the radial outlet opening is a radially outer outlet opening, particularly without limiting the generality of the invention. In one embodiment, the at least one fluid passage is arranged in an insert.

[0006] In one embodiment, the insert is arranged in a recess in the wall, particularly a partially or fully continuous one. Alternatively or additionally, in one embodiment, the outlet opening of the at least one fluid passage is offset relative to the inlet opening in the circumferential and / or rotational direction, and in another embodiment, it is additionally or alternatively offset in the axial direction. Alternatively or additionally, in one embodiment, the inlet opening has a larger free cross-section than the outlet opening. In one embodiment, the fluid passage has a non-cylindrical shape, particularly a non-cylindrical shape, especially in the radial direction.

[0007] Advantageously, in one embodiment, this reduces flow losses, in particular foaming of the fluid or oil. A fluid passage as described herein (in one embodiment), especially compared to fluid passages formed in the rotating bell with non-angled and circularly cylindrical radial through-bores (or with deflection to compensate for axial misalignment), exhibits optimized flow, particularly due to the centrifugal force from the rotation, which conveys the fluid or oil radially from the inside to the outside, especially during operation. In one embodiment, the bores serve as a pump implemented in the bearing or are used for this purpose. The fluid or...In one embodiment, oil can be guided through a cooler after passing the hot bearings, thus advantageously cooling it, at least substantially, back to its initial temperature. Advantageously, in one embodiment, this allows for a high cooling capacity, particularly compared to circular cylindrical fluid passages or through-holes. Advantageously, in one embodiment, flow losses before, within, and / or after the fluid passages can be reduced, particularly by means of one or more flow-optimized fluid passages, thereby increasing the flow rate and / or pumping effect through the (individual) fluid passage, especially compared to (circular) cylindrical radial bores.

[0008] Advantageously, an increased flow rate of fluid or oil, in one embodiment, leads to improved oil supply to bearings, especially those that are hot. Typically, larger quantities of fluid or oil are necessary, particularly in high-speed machines, to improve cooling performance. The embodiments described herein can increase the flow rate across a cooler, especially one located in an oil sump, thus enabling the use of smaller and / or therefore more economical coolers, particularly with the same bearing load. Furthermore, a loss-reduced flow path, in certain embodiments, advantageously leads to a lower tendency for the fluid or oil to foam. This, in certain embodiments, advantageously has a positive effect on heat transfer at the cooler.on the radiator surface and / or can contribute to a lower tendency to leak, especially due to foaming and / or oil mist.

[0009] In one embodiment, the inlet opening and / or the outlet opening has a circular cylindrical, in particular circular cylindrical, or an elliptical, in particular elliptical, cross-section.

[0010] Advantageously, in one design, this can improve flow guidance, especially during operation; furthermore, in particular, a (fluid) flow can be deflected without loss, or the fluid passage is used for this purpose.

[0011] In one embodiment, the fluid passage has a conical, in particular conical, shape and / or is in particular conical, in particular conical, in design.

[0012] Advantageously, in one design, this can improve flow guidance, especially during operation; furthermore, in particular, a (fluid) flow can be deflected without loss, or the fluid passage is used for this purpose.

[0013] In one embodiment, the fluid passage is designed as an elongated hole, in particular one angled to the radial direction.

[0014] Advantageously, in one design, this can improve flow guidance, especially during operation; furthermore, in particular, a (fluid) flow can be deflected without loss, or the fluid passage is used for this purpose.

[0015] In one embodiment, the fluid passage has a free geometry. In another embodiment, the free geometry is designed such that a flow pattern, particularly during operation, is optimized, or can be optimized. In yet another embodiment, the free geometry can be adapted to a specific flow pattern, particularly one that is required.

[0016] In one embodiment, the insert, in particular for the recess in the wall, can be manufactured or produced using a generative, in particular additive, manufacturing process.

[0017] Advantageously, this allows, in one embodiment, the creation of a freeform fluid passage more easily – especially compared to machining processes – particularly when the geometry of the fluid passage is less suitable for machining. Advantageously, this allows, in one embodiment, the surface quality of the fluid passage to be adjusted more easily, in particular by varying it (along the length and / or circumference of the passage), especially by changing the parameters of the additive manufacturing process during the production of the insert. In particular, this allows, in one embodiment, the creation of fluid passage shapes that cannot be manufactured using turning and / or milling processes.

[0018] In one embodiment, the fluid passage has a diameter of at least 3 mm, or at least 4 mm, particularly effective (especially if it is a free-form fluid passage), and / or a diameter of at most 50 mm, or at most 30 mm, or at most 25 mm, particularly effective (especially if it is a free-form fluid passage). Alternatively or additionally, the fluid passage has a length of at least 10 mm, particularly effective (especially if it is a free-form fluid passage), and / or a length of at most 500 mm, or at most 400 mm. In one embodiment, (at least one of these / ) these dimension(s) is / are preferably designed for rotational speeds of the vertical bearing of at least 100 rpm and / or at most 2000 rpm, in particular circumferential speeds of at least 1 m / s and / or at most 50 m / s, and furthermore in particular at temperatures of at least 20°C and / or at most 100°C.

[0019] Advantageously, this allows for the (further) optimization of the flow in one embodiment, particularly during the operation of the vertical bearing, especially under one or more of the operating conditions mentioned herein. In particular, this allows for at least a substantial doubling or even further increasing the flow rate in one embodiment, thereby improving cooling performance, or the fluid passage described herein can be used for this purpose.

[0020] In one embodiment, the vertical bearing, in particular a running bell of the vertical bearing, has at least one recess designed to receive an insert, in particular as described herein, and furthermore, in particular, to securely hold the insert under the operating conditions specified herein. For this purpose, the vertical bearing, in particular the running bell, and / or the insert, in one embodiment, has (suitable) fastening means.

[0021] According to one embodiment of the present invention, a method for creating a fluid passage and / or an insert, particularly for a vertical bearing, is provided. In one embodiment, a method for creating a vertical bearing described herein is provided. In one embodiment, the method includes acquiring operating parameter data, wherein the operating parameter data particularly describes at least one operating state of the vertical bearing. In one embodiment, the method includes optimizing the vertical bearing, in particular the fluid passage for the vertical bearing, based on the acquired operating parameter data.In one embodiment, the optimization process comprises at least one simulation, in particular a fluid simulation (CFD simulation), which optimizes the vertical bearing, in particular at least one of which is based on operating parameter data such as rotational speed, tip speed, temperature, flow rate, and / or pressure, and in particular a fluid passage for the vertical bearing, as described herein. Alternatively or additionally, in one embodiment, the process comprises manufacturing a vertical bearing (described herein), in particular a fluid passage and / or an insert for the vertical bearing, further in particular based on the optimization of the vertical bearing, in particular the fluid passage. In one embodiment, the process comprises manufacturing an optimized vertical bearing, in particular a fluid passage and / or an insert for the vertical bearing.

[0022] Advantageously, this allows for the reduction of deflection and / or flow losses in one embodiment, in particular the creation and / or manufacture of a more efficient vertical bearing, in particular the creation and / or manufacture of a fluid passage and / or an insert for a vertical bearing, and furthermore, in particular the use of the method for a, in particular optimized, vertical bearing.

[0023] In one embodiment, the method, in particular the production of a vertical bearing, especially of a fluid passage and / or an insert for a vertical bearing, comprises an additive manufacturing step or an additive manufacturing process. In one embodiment, at least one, in particular optimized, part of the vertical bearing, further in particular of a fluid passage and / or an insert for a vertical bearing, is additively manufactured.

[0024] According to one embodiment of the present invention, a system for creating a fluid passage and / or an insert for a vertical bearing, particularly as described herein, is provided. In one embodiment, the system is configured to carry out a method described herein. In one embodiment, the system includes means for acquiring operating parameter data, wherein the operating parameter data describes, in particular, at least one operating parameter for the vertical bearing. In one embodiment, the system includes means for optimizing a fluid passage, in particular of the vertical bearing and / or the insert (for the vertical bearing). In one embodiment, the means for optimization include a fluid simulation.In one embodiment, the system comprises means for producing a vertical bearing, in particular as described herein, and further in particular means for producing a fluid passage and / or an insert (as described herein), in particular means which are set up for a machining process and / or an additive manufacturing process.

[0025] A means according to the present invention can be configured as hardware and / or software, in particular comprising at least one processing unit, preferably a microprocessor unit (CPU), graphics processing unit (GPU), or the like, preferably connected to a storage and / or bus system via data or signals, and / or comprising one or more programs or program modules. The processing unit can be configured to execute instructions implemented as a program stored in a storage system, to acquire input signals from a data bus, and / or to output signals to a data bus. A storage system can comprise one or more, in particular different, storage media, in particular optical, magnetic, solid-state, and / or other non-volatile media. The program can be configured to embody the methods described herein.is able to execute, so that the processing unit can perform the steps of such procedures and thus in particular. can operate or monitor the machine.

[0026] A computer program product may, in one embodiment, include a storage medium, in particular a computer-readable and / or non-volatile medium, for storing a program or instructions, or with a program or instructions stored thereon. In one embodiment, the execution of this program or these instructions by a system or a controller, in particular a computer or an arrangement of several computers, causes the system or the controller, in particular the computer(s), to execute a procedure described herein or one or more of its steps, or the program or instructions are configured for this purpose.

[0027] In one embodiment, one or more, in particular all, steps of the procedure are fully or partially computer-implemented, or one or more, in particular all, steps of the procedure are fully or partially automated, in particular by the system or its means.

[0028] Further advantages and features will become apparent from the dependent claims and the exemplary embodiments. These are shown, in part schematically: Fig. 1: a section through a vertical bearing, in particular through a running bell, with fluid passages according to embodiments of the present invention; Fig. 2: a flow simulation of fluid passages according to embodiments of the present invention; and Fig. 3: a flowchart to illustrate a preferred embodiment of the method according to the invention.

[0029] Fig. Figure 1 shows a section through a vertical bearing 1, in particular through a bearing housing of a vertical bearing 1, with different fluid passages A, A', B, C (described in particular herein); without loss of generality. In one embodiment, the vertical bearing 1 has, at least substantially, identical fluid passages, and in an alternative embodiment, the vertical bearing 1 has, at least substantially, different fluid passages A, A', B, C. Fig. Figure 1 shows a first fluid passage A with a conical shape. Furthermore, in Fig. Figure 1 shows a fluid passage A' analogous to fluid passage A, which is arranged or integrated in an insert 10 in the vertical bearing 1, in particular in the running bell of the vertical bearing 1. In embodiments, differently shaped fluid passages can also be formed in an insert 10 (not shown). Furthermore, an example direction of rotation is given, which in particular schematically represents a direction of rotation of a running bell, and furthermore, in particular without limitation of generality. Therefore, in particular during operation, a fluid is conveyed by centrifugal force from the inside to the outside through the fluid passage(s) A, A', B, C.

[0030] Fig. Figure 2 schematically shows a simulation, in particular a flow simulation, of fluid passages A, A', B, C according to embodiments of the present invention. On the left side is a simulation with a conical fluid passage A, on the right side is a simulation with a free-form fluid passage C. Fig. Figure 2 shows that a flow or current through the fluid passage A, C, particularly during operation, especially when the corresponding (respective) vertical bearing 1 is rotated about an axis perpendicular to the plane of the paper (when rotating clockwise), forms a fluid flow which in particular has a high or higher flow rate than compared with a (circular) cylindrical radial bore.

[0031] Advantageously, such a design or a design described herein, particularly in one embodiment, can minimize a negative pressure in the fluid passage, in particular reduce or prevent the effect of such a negative pressure, especially in such a way that a negative pressure reduces the flow through the fluid passage less and / or that a flow can be increased, in particular by reducing negative pressure areas in the fluid passage.

[0032] Fig.Figure 3 schematically shows a flowchart illustrating a process described herein. The process shown includes the acquisition S10 of operating parameter data. Furthermore, the optimization S20 of the vertical bearing 1, in particular of the fluid passage A, A', B, C for the vertical bearing 1, is shown, especially based on the acquired operating parameter data. Finally, the production S30 of the optimized vertical bearing 1, in particular of the optimized fluid passage and / or of the optimized insert for the vertical bearing 1, is shown. In one embodiment, parts of the process can be repeated, in particular the production, as indicated by the arrow.

[0033] In the present disclosure, "has an X" does not generally imply an exhaustive list, but is a shorthand for "has at least one X" and also includes "has two or more X" as well as "has Y in addition to X". Although exemplary implementations were explained in the preceding description, it should be noted that a multitude of variations are possible. Furthermore, it should be noted that the exemplary implementations are merely examples and are not intended to limit the scope of protection, applications, or structure in any way.Rather, the preceding description provides the skilled person with a guide for implementing at least one exemplary embodiment, whereby various modifications, particularly with regard to the function and arrangement of the described components, can be made without leaving the scope of protection as defined by the claims and these equivalent combinations of features. Reference symbol list 1 Vertical bearing 10 deployment A, A', B, C Fluid passage

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