Segmented plain bearing, plain bearing segment therefor, and method for producing same

Abstract

The invention relates to a plain bearing segment (100) for a segmented plain bearing (10) in the form of a radial bearing or of an axial bearing, comprising a segment body (110) with - an inner face (111) which faces a supported shaft in the final assembly state, - an outer face (112) on the opposite side from the inner face (111), - a front end side (113) in the direction of rotation of the shaft (20) in the final assembly state, - a rear end side (114) on the opposite side from the front end side (113), and - two lateral sides (115) that are respectively transverse to the end sides (113, 114), the outer face (112) and the inner face (111), wherein an oil space (120) through which cooling oil is able to flow is arranged in the interior of the segment body (110), said oil space extending over the majority of the lateral width of the segment body (110) and being connected to the surroundings of the plain bearing segment (110) via an inlet channel (121), passing through the outer face (112), on the entry side and via a plurality of outlet nozzles (131), passing through the rear end side (114), on the exit side. The invention is characterised in that the rear end side (114) is formed at least regionally by a closing plate (130) joined to the segment body (110), said closing plate directly closing the oil space (120) and having a plurality of passage openings forming the outlet nozzles (131). The invention also relates to a method for producing such a plain bearing segment and to a segmented plain bearing constructed from plain bearing segments, at least one of which is configured in accordance with the invention.

Description

[0001] Segmented plain bearing, plain bearing segment therefor and method for its production

[0002] Description

[0003] Field of the invention

[0004] The invention relates to a plain bearing segment for a segmented plain bearing designed as a radial bearing or as an axial bearing, comprising a segment body with

[0005] - an inner surface which, in the final assembly state, faces a supported shaft,

[0006] - an outer surface opposite the inner surface,

[0007] - a front end in the direction of rotation of the shaft in the final assembly state,

[0008] - a rear end opposite the front end and

[0009] - two lateral sides each transverse to the end faces, the outer and the inner surface, wherein an oil chamber through which cooling oil can flow is arranged in the interior of the segment body, which extends over the majority of the lateral width of the segment body and which is connected to the environment of the plain bearing segment on the inlet side via an inlet channel passing through the outer surface and on the outlet side via a plurality of outlet nozzles passing through the rear end face.

[0010] The invention further relates to a method for producing such a plain bearing segment.

[0011] Finally, the invention relates to a segmented plain bearing comprising a plurality of plain bearing segments, including at least one as described above, whose inner surfaces together form a bearing surface for a supported shaft. State of the art

[0012] Such segmented plain bearings and plain bearing segments therefor are known from EP 3 032 122 B1.

[0013] In the context of this description, terms such as “front,” “rear,” “inner,” “outer,” or similar are used with reference to the final assembly or operating state of a plain bearing according to the invention or to a plain bearing constructed from plain bearing segments according to the invention. The inner surface is the surface of a plain bearing segment that faces the supported shaft in the final assembly state. The outer surface is the surface of a plain bearing segment that faces away from the supported shaft in the final assembly state. The front end face is the end face extending between the inner and outer surfaces that is passed by a point assumed on the surface of the supported shaft as the first of the two end faces of the respective plain bearing segment during normal operation of the plain bearing.The rear end face is the face extending between the inner and outer surfaces, which is the second or last of the two faces of the plain bearing segment passed by the said point on the shaft surface during normal operation of the plain bearing. Similar terms apply to terms such as "axial," "radial," "parallel to the tangent," and similar terms, which specifically refer to the orientation of the supported shaft.

[0014] The aforementioned generic EP 3 032 122 B1 discloses a tilting-pad plain bearing designed as a radial bearing, the individual plain bearing segments of which, each designed as a tilting pad, are provided with internal oil cooling. The oil, which initially acts as cooling oil, is guided through the segment body of each plain bearing segment and sprayed as lubricating oil via outlet nozzles in its rear end face into the bearing gap between the supported shaft and the next adjacent plain bearing segment. The oil thus fulfills a dual function: as a coolant for the internal cooling of the plain bearing segments and as a lubricant for building up the lubricating film in the bearing gap between the supported shaft and the inner surfaces of the plain bearing segments. Specifically, the aforementioned document proposes incorporating a groove into the outer surface of each plain bearing segment that extends across most of its lateral segment width.This serves as an inlet channel for the oil and is connected via appropriately shaped, flexible nozzles to an oil pressure chamber surrounding all of the plain bearing segments. This inlet shaft projects radially into the segment body up to near the inner surface. At its closed end, the inlet shaft merges into a flat channel of the same lateral width, which extends parallel to the inner surface towards the rear end of the plain bearing segment. However, it ends well before this rear end. Several oil guide channels branch off from the rear end of the flat channel, some of which penetrate the rear end, with the through openings acting as jet-forming outlet nozzles. As already described above, these are directed towards the entrance of the bearing gap between the next adjacent plain bearing segment and the mounted shaft.Further oil guide channels which extend from the rear end of the flat channel through the inner surface of the plain bearing segment are irrelevant in the context of the present invention.

[0015] The known plain bearing segments, or a segmented plain bearing constructed from them, are certainly advantageous with regard to the dual use of the oil. However, the concept disclosed in the aforementioned publication is hardly economically feasible. In particular, the flat channel between the inlet shaft and the outlet-side oil guide channels can only be manufactured using highly complex and delicately shaped electroerosion electrodes or by 3D printing. This is complex and expensive.

[0016] JP 2003 113 834 A pursues a somewhat different concept for achieving the aforementioned dual function of the oil. Here, the bearing segment is traversed along its length from the front to the rear end face by a straight, secant-shaped oil channel. This channel opens into a distributor block fixed to the rear end face, which receives the oil flowing from the channel, distributes it laterally in a transverse channel, and discharges it to a series of outlet nozzles in the rear end face of the distributor block. While this results in good distribution of the oil at the entrance to the bearing gap on the next segment, the block in the azimuthal gap between the segments significantly reduces the available bearing surface. In addition, the cooling achieved by the oil flowing through the thin, secant-shaped channel is not very effective; in particular, the cooling effect is concentrated in the middle (laterally and longitudinally) of the segment.A similar approach is disclosed in US Pat. No. 8,834,032 B2. However, here the segment is traversed by three parallel, secant-like channels, which somewhat improves cooling effectiveness. Distribution blocks arranged azimuthally between each two adjacent segments serve to laterally distribute lubricating oil from the preceding segment and introduce fresh cooling oil into the following segment. A disadvantage here, too, is the reduction in the total available storage area due to the distribution blocks.

[0017] Further sliding bearing systems are known from US 11 359 667 B2 and US 8 734 019 B2.

[0018] From JP 2006 198656 A, it is known to cool a forming die by providing it with multiple coolant channels that can be connected to a plurality of coolant hoses. Connecting blocks with internal connecting channels can be attached to the outside of the die, which collect coolant from some of the channels in the die and return it to others.

[0019] Task

[0020] It is the object of the present invention to propose an economically feasible construction of plain bearing segments operating according to the known principle.

[0021] Description of the invention

[0022] This object is achieved in conjunction with the features of the preamble of claim 1 in that the rear end face is formed at least in regions by a closing plate which is joined, in particular screwed, to the segment body, which directly closes the oil chamber and has a plurality of passage openings forming the outlet nozzles.

[0023] Preferred embodiments of the invention are the subject of the dependent patent claims. According to the invention, the oil chamber extending across the lateral width of the segment body is therefore provided for to be extended to the rear end face or (if necessary only) to be arranged there and for the actual end wall to be designed as a separate, preferably reversibly attachable component. Without this end wall, referred to here as a closing plate, the oil chamber is therefore open and accessible across its entire width from the rear end face of the segment body. This enables, in particular, the introduction of milling, drilling and / or electroerosion tools, with which, among other things, said oil chamber can be machined into the segment body during the manufacture of the plain bearing segment according to the invention. A complex design of these tools and, in particular, the machining of undercuts, as in the prior art, is therefore not necessary.This significantly simplifies and reduces the cost of production. After the oil chamber has been designed, its open side can be closed by means of the closing plate, with the outlet nozzles required for spraying the oil into the adjacent bearing gap being provided as corresponding passage openings in the closing plate. Particularly in the case of a reversibly joined, e.g., screwed, closing plate, the plain bearing segment according to the invention can be converted as needed to different spray patterns and / or volume flows for the oil. In any case, however, similarly shaped segment bodies can be manufactured and stocked and then provided with different closing plates to construct different plain bearings.

[0024] In order to achieve a flat design of the rear end face, it is preferably provided that the segment body has a recess in the region of its rear end face, which forms a shoulder surrounding the edge of the oil chamber and into which the striker plate is fitted flush. In this embodiment, the striker plate is therefore preferably recessed into the rear end face in a form-fitting manner in order to form a part of the end face that is flush with the rest of the end face when joined. The preferred form fit along the circumference of the striker plate ensures that the striker plate is always correctly aligned relative to the segment body, which is particularly important with regard to the precision of the oil spray pattern.

[0025] In the prior art discussed at the beginning, the essential function of the oil chamber was to act as a flat channel conducting the cooling oil. In a preferred embodiment of the invention, however, the oil chamber is designed as a collecting chamber into which several oil guide channels, distributed across the lateral width of the segment body and connected to the inlet channel, open. In other words, the wide oil chamber does not have to extend over a significant portion of the length of the plain bearing segment. Rather, it is sufficient to provide one (wide) collecting chamber located only in the immediate vicinity of the rear end face. Here, in the rear segment area, the most intense cooling is typically required, so that consolidating the entire cooling oil volume at this point is particularly useful.In the front segment area, where the highest lubricating film pressures typically occur, segment stability is more important, so the segment here should have as few or as small cavities as possible.

[0026] In this embodiment, the function of the cooling oil line is preferably performed by oil guide channels that extend along the length of the plain bearing segment, starting from the collecting chamber. With a sufficiently dense arrangement and suitable distribution of these oil guide channels, a cooling performance comparable to that of a wide flat channel can be achieved with a significantly lower total oil volume. Furthermore, the oil guide channels ensure a defined flow condition, in contrast to a wide flat channel, which can have an overall lower flow velocity and possibly even so-called dead zones with vanishing flow velocity, particularly in its edge areas. Due to the previously described easy accessibility of the collecting chamber from the (still open) rear end face of the segment body, the formation of these oil guide channels, for example as bores, is possible without any particular technical difficulties.

[0027] The oil guide channels, or generally at least one of the oil-carrying structures, i.e., in particular the oil guide channels, the collection chamber, the distribution chamber, and the inlet channel, can have heat exchanger structures on their walls. These are generally roughened portions that increase the contact area between the cooling oil and the channel walls. For example, they can be designed in the form of cut internal threads. Due to the previously described easy accessibility of the collection chamber from the (still open) rear end face of the segment body, access for corresponding thread cutters is possible without any particular technical difficulties.

[0028] Advantageously, the oil guide channels open with their ends facing away from the collecting chamber into a distributor chamber, into which the inlet channel also opens. In other words, the connection between the oil guide channels and the inlet channel is only indirect and occurs in particular via said distributor chamber. This can, for example and preferably, be designed as a blind bore introduced into one of the lateral sides of the segment body, the opening of which is sealed in an oil-tight manner. Alternatively, a through-bore penetrating both lateral sides can be used, both openings of which are sealed in an oil-tight manner. This distributor chamber bore runs essentially transversely to the oil guide channels that open into it. The inlet channel can also be designed as a simple bore that opens into the distributor chamber.This measure also simplifies manufacturing and reduces the required total oil volume compared to the state of the art discussed above, which provided a shaft extending across most of the lateral width of the segment body as the inlet channel. Furthermore, the design of the inlet channel as a simple bore significantly simplifies its connection to a pressurized oil source, as required in the final assembly state of a segmented plain bearing.

[0029] Instead of the complex design of the oil-carrying structures in the prior art, the invention allows for their cost-effective and technically simple design. In particular, it is possible and preferably provided for plain bearing segments that are suitable for constructing segmented plain bearings designed as radial bearings that

[0030] - the distribution chamber as an axial bore,

[0031] - the oil guide channels as tangent-parallel holes,

[0032] - the inlet port as a radial bore and / or

[0033] - the collecting space is designed as a milled recess or electroerosion cavity in the segment body.

[0034] For plain bearing segments which, however, are suitable for the construction of segmented plain bearings designed as axial bearings, it is possible and preferably provided by the invention that - the distribution space is designed as a radial bore,

[0035] - the oil guide channels as tangent-parallel holes,

[0036] - the inlet port as an axial bore and / or

[0037] - the collecting space is designed as a milled recess or electroerosion cavity in the segment body.

[0038] In other words, the preferred method for producing a plain bearing segment according to the invention can be divided into the following steps: a) Providing a segment body blank, b) Forming a recess in the rear end face of the segment body blank, which recess forms the collecting space in the final manufacturing state and extends over a predominant part of the width of the segment body blank, c) Before or after step b: Forming tangent-parallel first bores in - if carried out before step b - the rear end face of the segment body blank or - if carried out after step b - the bottom of the recess, d) Before or after step c: Forming a second bore, preferably central with respect to the length of the segment body blank, in the final manufacturing state, which forms the distribution space and intersects the first bores perpendicularly, in a lateral side of the segment body blank,e) before or after step d: making a third bore into the outer surface of the segment body blank, preferably centrally with respect to the outer surface of the segment body blank, which in the final manufacturing state forms the inlet channel and intersects the second bore perpendicularly, and f) after steps b and c: flush closing of the recess made in step b in the rear end face of the segment body blank by joining the locking plate.

[0039] In particular, the second bore forming the distribution chamber and the third bore forming the inlet channel should be equally positioned with respect to the length of the segment blank, preferably centrally in the sense of approximately 50% to 60% of the length of the segment blank.

[0040] A person skilled in the art will understand that the order of steps b and c can be interchanged as desired. The same applies to the order of steps d and e. Furthermore, the latter are completely independent of steps b and c on the one hand and of step f on the other hand in terms of their temporal position. The latter itself, however, can only be carried out after steps b and c. The above method description is also to be understood in such a way that, if reference is made in a step to an element that does not yet exist due to the specifically selected sequence of steps in the concrete case, its anticipated position in the segment body blank is meant rather than the element itself. The term two "intersecting" bores is intended in the present context to include both the case in which both bores extend on either side of the intersection point, as well as the cases in which at least one of the bores ends at the intersection point.

[0041] The plain bearing according to the invention is preferably a tilting-segment plain bearing, i.e., the plain bearing segments according to the invention are tilting segments that can adapt to the respective position of the shaft by slight tilting about a pivot axis, which is aligned parallel to the rotational axis of the mounted shaft in the case of a radial bearing or perpendicular to the rotational axis of the mounted shaft in the case of an axial bearing. Various approaches known to those skilled in the art exist for implementing this tilting function, which are not affected by the present invention and can therefore be implemented in the usual way.

[0042] Further details and advantages of the invention will become apparent from the following specific description and drawings.

[0043] Brief description of the drawings

[0044] They show:

[0045] Figure 1 : a perspective view of an inventive

[0046] plain bearing segment,

[0047] Figure 2: a partially sectioned view of an incomplete segmented plain bearing including a mounted shaft, Figure 3: an enlarged view of the partially sectioned

[0048] Plain bearing segment of Figure 2,

[0049] Figure 4: a plan view of the plain bearing segment of Figure 1,

[0050] Figure 5: a rear view of the plain bearing segment of Figure 1,

[0051] Figure 6: a sectional view through the plain bearing segment of Figure 1 along the section line VI - VI in Figure 4 and

[0052] Figure 7: a sectional view of the plain bearing segment of Figure 1 along the

[0053] Section line VII - VII in Figure 3.

[0054] Description of preferred embodiments

[0055] The same reference symbols in the figures indicate the same or analogous elements.

[0056] Figures 1 to 7 show, in different representations, a plain bearing segment according to the invention (Figures 1, 3 to 7) or a segmented plain bearing according to the invention (Figure 2).

[0057] Unless specifically referred to one of the figures below, they will be described together.

[0058] Figure 2 shows a partially sectioned, incomplete view of a segmented plain bearing 10 according to the invention, designed as a radial bearing, in which a plurality of plain bearing segments 100 according to the invention are arranged evenly distributed over the circumference of a supported shaft 20. In the illustration in Figure 2, only two of the aforementioned plain bearing segments 100 are shown, the left one in a partially sectioned view. However, those skilled in the art will recognize that a configuration according to the invention is not required for all segments. Often, it will even be sufficient if only one of the segments is configured according to the invention.

[0059] Each plain bearing segment 100 according to the invention essentially consists of a segment body 110, which is best described by its sides or surfaces. The concavely curved surface of the segment body 110, which in the final assembly state faces the mounted shaft 20, is described here as the inner surface 111. This can be a surface of a one-piece segment body or, as in the illustrated embodiment (see in particular Figure 6), a special sliding coating 111', e.g., made of a soft metal. The convexly curved surface opposite the inner surface 111 is referred to here as the outer surface 112. The sides of the segment body 110, referred to here as end faces 113, 114, are perpendicular to the inner and outer surfaces 111, 112 and perpendicular to the rotation of the shaft 20 indicated by the rotation arrow 40 in Figure 2.The end face of the segment body 110 that is first passed by a point arbitrarily determined on the surface of the shaft 20 rotating according to the rotation arrow 40 is referred to here as the front end face 113. The end face of the segment body 110 that is last passed by this point is referred to here as the rear end face 114. The two sides of the segment body 110 that are perpendicular to the sides or surfaces discussed so far are referred to here as the lateral sides 115.

[0060] The lateral sides 115 each have a blind bore 116 which can be used as a segment lock. Locking pins (not shown) can be inserted into these holes and are fixed to an outer support structure of the plain bearing 10 (also not shown).

[0061] The segment body 110 is hollow in some areas. Cooling oil can flow through the cavity inside the segment body 110 and is therefore referred to herein as the oil chamber 120. In the illustrated embodiment, the oil chamber 120 is divided into several sections. On the inlet side, it is connected to the surroundings of the plain bearing segment 100 via an inlet channel 121, which penetrates the outer surface 112 approximately in the center of the segment body 110. In particular, the oil chamber can be connected via this to a pressurized oil source (not shown in the figures), from which an oil flow is maintained through the oil chamber 120 during operation. In the illustrated embodiment, the inlet channel 121 is designed as a radial blind bore.The resulting round profile of the inlet channel 121 is particularly suitable for an oil-tight connection to the pressurized oil source, in particular using standard connection means such as hoses, fittings, etc. As can be seen in particular in Figures 5 and 6, the inlet channel 121 opens into a distribution chamber 122, which in the embodiment shown is designed as an axial blind bore introduced into one of the lateral sides 115, the open end of which is closed in an oil-tight manner by means of a plug 123.

[0062] From the distribution chamber 122, several tangentially parallel oil guide channels 124 extend directly beneath the inner surface 111 of the segment body 110 toward the rear end face 114. They open into a laterally extending collecting chamber 125, which directly borders the rear end face 114. In the area of ​​the collecting chamber 125, this collecting chamber is designed as a locking plate 130, which is fixed to the segment body 110 by means of screws 132. In particular, the edge around the open, rear end of the collecting chamber is surrounded by a shoulder 117, on which the locking plate 130 rests. The shoulder 117 simultaneously forms the bottom of a recess in the rear end face 114 which encompasses the collecting space opening, the dimensions of said elements being coordinated with one another in such a way that a flush shape of the rear side surface 114 results, partly consisting of the striking plate 130 and partly consisting of the material of the segment body 110 surrounding it.The locking plate 130 has several through-openings acting as outlet nozzles 131 for the cooling oil flowing through the oil chamber 120. These pass through the locking plate 130 at a slight angle and—in the final assembled state (Figure 2)—in the direction of a bearing gap 30 between the plain bearing segment 100 adjacent to the shaft 20 in the direction of rotation and the surface of the shaft 20. During operation of the segmented plain bearing 20, cooling oil flows through the oil chamber 120 in the following sequence: inlet channel 121, distribution chamber 122, oil guide channels 124, collection chamber 125, outlet nozzles 131. From there, it is sprayed, as explained above, into the bearing gap 30, where it is used as lubricating oil for the low-friction bearing of the shaft 20.

[0063] A particular advantage of the invention lies in the ease of manufacture of the plain bearing segments 100. This can be particularly clearly seen in the illustration in Figure 3. Thus, a blank for the segment body 110 is usually provided as a solid metal body, for example, as a forged or milled part. In the case of a coating of the inner surface 111 with a sliding coating 111', it may remain undecided whether this is already applied at this early stage of production or is applied later. In any case, the rear end face of the segment body blank is accessible for machining. For example, the shoulder 117 and the collecting space 125 can be machined by milling.

[0064] Subsequently, the oil guide channels 124 can be formed as simple holes drilled into the bottom of the collecting chamber 125. These holes can, of course, also be created in the segment body blank before the collecting chamber 125 is created.

[0065] The distribution chamber 122 can be formed by a transverse bore that intersects all oil guide channels 124, preferably in the region of their closed ends. Its opening in the lateral side 115 can be sealed in an oil-tight manner by a plug 123, for example, designed as a grub screw. Finally, the inlet channel 121 can be formed by a radial blind bore opening into the distribution chamber 122, whereby the order of creation of the distribution chamber 122 and the inlet channel 121 relative to one another and with respect to the creation of the collection chamber 125 and the oil guide channels 124 is arbitrary.

[0066] In this way, the oil chamber 120 composed of several sections can be formed, although in the described manufacturing state, it is still largely open on the outlet side. This opening is finally closed—at least after the creation of the collecting chamber 125 and oil guide channels 124—by fixing, preferably screwing, the locking plate onto the shoulder 117. The required outlet nozzles 131, which may already be incorporated into the locking plate 130 in terms of number, size, shape, and direction, can be specifically selected by the person skilled in the art in light of the individual case. The person skilled in the art will understand that the above-described sequence of drilling the various bores is not relevant to the invention.The fact that the sections of the oil chamber 120 designed as simple bores can be formed in this cost-effective manner is a consequence of the inventive design of an oil chamber section, in particular of the collecting chamber 125 in the immediate vicinity of the rear end face 114. Naturally, the embodiments discussed in the specific description and shown in the figures represent only illustrative embodiments of the present invention. A broad spectrum of possible variations is available to those skilled in the art in light of the disclosure herein. In particular, it is possible to transfer the inventive concept to segmented plain bearings designed as axial bearings. In this case, essentially only the directional relationships of the extensions of the inlet channel 121 (axial) and the distributor or collecting chamber 122, 125 (radial) change.Furthermore, reference can be made in full to the above explanation of the exemplary embodiment of a radial bearing.

[0067] List of reference symbols

[0068] 10 plain bearings

[0069] 100 plain bearing segments

[0070] 110 segment bodies

[0071] 111 Interior surface

[0072] 11 T sliding coating

[0073] 112 exterior area

[0074] 113 front end

[0075] 114 rear front side

[0076] 115 Lateral side

[0077] 116 blind hole

[0078] 117 paragraph

[0079] 120 oil room

[0080] 121 Inlet channel

[0081] 122 Distribution room

[0082] 123 plugs

[0083] 124 Oil guide channel

[0084] 125 assembly room

[0085] 130 strike plate

[0086] 131 Outlet nozzle

[0087] 132 screw

[0088] 20 Wave

[0089] 30 bearing gap

[0090] 40 Rotation arrow

Claims

Patent claims 1. A plain bearing segment (100) for a segmented plain bearing (10) designed as a radial bearing or as an axial bearing, comprising a segment body (110) with - an inner surface (111) which, in the final assembly state, faces a mounted shaft (20), - an outer surface (112) opposite the inner surface (111), - a front end face (113) in the final assembly state in the direction of rotation of the shaft (20), - a rear end face (114) opposite the front end face (113) and - two lateral sides (115) each extending transversely to the end faces (113, 114), the outer and the inner surface (111; 112), wherein an oil chamber (120) through which cooling oil can flow is arranged in the interior of the segment body (110), which extends over the predominant part of the lateral width of the segment body (110) and which is connected to the environment of the plain bearing segment (100) on the inlet side via an inlet channel (121) passing through the outer surface (112) and on the outlet side via a plurality of outlet nozzles (131) passing through the rear end face (114), characterized in that the rear end face (114) is formed at least in regions by a closing plate (130) joined to the segment body (110), which Oil chamber (120) is directly closed and has a plurality of passage openings forming the outlet nozzles (131).

2. Plain bearing segment (100) according to claim 1, characterized in that the locking plate (130) is screwed to the segment body (110).

3. Plain bearing segment (100) according to one of the preceding claims, characterized in that the segment body (110) has a recess in the region of its rear end face (114) which forms a shoulder (117) surrounding the edge of the oil chamber (120) and into which the locking plate (130) is fitted flush and / or positively.

4. Plain bearing segment (100) according to one of the preceding claims, characterized in that the oil chamber (120) is designed in its rear end region as a collecting chamber (125) into which a plurality of oil guide channels (124) open, which are arranged distributed over the lateral width of the segment body (110) and connected to the inlet channel (121).

5. Plain bearing segment (100) according to claim 4, characterized in that oil guide channels (124) open with their ends facing away from the collecting chamber (125) into a distribution chamber (122) into which the inlet channel (121) also opens.

6. Plain bearing segment (100) according to claim 5, characterized in that, in each case based on the final assembly state of the plain bearing (10) designed as a radial bearing, - the distribution chamber (122) as an axial bore, - the oil guide channels (124) as tangent-parallel bores, - the inlet channel (121) as a radial bore and / or - the collecting space (125) is formed as a milled recess or electroerosion cavity in the segment body (110).

7. Plain bearing segment according to claim 5, characterized in that, in each case based on the final assembly state of the plain bearing designed as an axial bearing, - the distribution chamber as a radial bore, - the oil guide channels as tangent-parallel holes, - the inlet port as an axial bore and / or - the collecting space is designed as a milled recess or electroerosion cavity in the segment body.

8. Plain bearing segment (100) according to one of claims 6 to 7, characterized in that the bore forming the distribution space (122) is a blind bore made on one side in one of the lateral sides (115), the opening of which is closed in an oil-tight manner.

9. Plain bearing segment (100) according to one of the preceding claims, characterized in that a temperature sensor is arranged in the segment body (110) without direct contact with the interior of the oil-conducting structures (121, 122, 124, 125).

10. Plain bearing segment (100) according to one of the preceding claims, characterized in that at least one of the oil-conducting structures (121, 122, 124, 125) is provided with heat exchanger structures in its interior.

11. Segmented plain bearing (10) comprising a plurality of Plain bearing segments (100), the inner surfaces (111) of which together form a bearing surface for a mounted shaft (20), characterized in that at least one of the plain bearing segments (100) is designed as a Plain bearing segment (100) is designed according to one of the preceding claims.

12. Segmented plain bearing according to claim 11, characterized in that the inlet channel (111) is connected to a pressure oil source.

13. Segmented plain bearing according to claim 12, characterized in that the passage openings of the closing plate (130) of each plain bearing segment (100) forming the outlet nozzles (131) are arranged in such a way that an oil jet flows from them during operation and is directed towards the entrance of a bearing gap (30) existing between the next adjacent plain bearing segment (100) and the shaft (20).

14. A method for producing a plain bearing segment (100) according to one of claims 6 to 7, comprising the steps: a) providing a segment body blank, b) forming a recess in the rear end face (114) of the segment body blank, said recess extending over a predominant part of the width of the segment body blank in the final manufacturing state, c) before or after step b: forming tangent-parallel first bores in - if performed before step b - the rear end face (114) of the segment body blank or - if performed after step b - the bottom of the recess, d) before or after step c: forming a second bore in a lateral side (115) of the segment body blank, said second bore forming the distribution space (122) in the final manufacturing state and perpendicularly intersecting the first bores,e) before or after step d: introducing a third bore into the outer surface (112) of the segment body blank, said third bore forming the inlet channel (121) in the final manufacturing state and perpendicularly intersecting the second bore, and f) after steps b and c: flush closing of the recess introduced in step b into the rear end face (114) of the segment body blank by joining the locking plate (130).

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