Spur gear housing for accommodating spur gear stage

Abstract

A spur gear housing (10) is disclosed that is configured for accommodating a spur gear stage of a transmission. The spur gear housing (10) comprises: a reinforcing structure (12; 112), which is configured to absorb a force acting on the spur gear housing (10); a plurality of stop structures (14), wherein each stop structure is configured for accommodating at least one stop means for the spur gear housing (10); and a plurality of coupling structures (16; 116), wherein each coupling structure is configured for arranging at least one supply element of the spur gear stage. The reinforcing structure (12; 112) comprises a radially outer absorption region (12a) and a radially inner reinforcing region (12b), which are distributed in the circumferential direction of the spur gear housing (10). The stop structures (14) and the coupling structures (16; 116) are distributed in the circumferential direction of the spur gear housing (10), and the number of the stop structures (14) and the coupling structures (16; 116) is greater than the number required for use of the spur gear stages.

Description

Technical Field

[0001] The invention relates to a spur gear housing having a plurality of structures arranged in the circumferential direction of the spur gear housing. The spur gear housing is configured to selectively accommodate spur gear stages of different structural types and to operate together with spur gear stages of different structural types. Background Art

[0002] Industrial transmissions for driving industrial plants are known. These industrial transmissions are composed of a plurality of housings, in which different transmission sections are accommodated. The housings are individually manufactured according to customer requirements. Summary of the invention

[0003] In one aspect, the invention relates to a cylindrical gear housing, which is configured to accommodate a cylindrical gear stage of a transmission. The transmission may be an industrial transmission for transmitting torque from a motor to an industrial facility. The industrial facility may be understood, for example, as a rock crusher for crushing rocks, a facility for processing cement, or a similar facility that is subject to strong impacts. The cylindrical gear stage may form the first transmission stage in a torque transmission chain. The cylindrical gear stage may be connected to the motor via a drive shaft. Alternatively or additionally, the cylindrical gear stage may be connected to the industrial facility via an output shaft of the transmission. With the help of the cylindrical gear stage, a first transmission ratio may be achieved within the transmission. In order to achieve the first transmission stage, the cylindrical gear stage may include at least two gears, which may be brought into a mechanically active connection for transmitting torque. The cylindrical gear housing may be made of a metal material. The cylindrical gear housing may have a hollow space that can accommodate the cylindrical gear stage. The cylindrical gear housing may be constructed in two or more pieces. The cylindrical gear housing may be connected to another transmission housing.

[0004] The spur gear housing comprises a reinforcement structure which is designed to absorb forces acting on the spur gear housing. Forces acting on the spur gear housing can be understood as forces caused by the operation of the transmission. For example, a rotating drive shaft or a rotating output shaft of the transmission can be supported in the spur gear housing. As a result, the spur gear housing can be subjected to shear forces or moments, for example. Alternatively or additionally, the spur gear housing can be subjected to vibrations during transportation and during operation of the transmission or the spur gear housing. These vibrations can also lead to forces acting on the spur gear housing. Alternatively or additionally, the spur gear housing can be subjected to tensile or compressive forces, for example due to the connection of the spur gear housing to another transmission housing.

[0005] A structure may refer to a sub-region of a spur gear housing that is shaped for the respective purpose. A structure may be divided into a plurality of sub-structures, which may be designed similarly to the structure. Alternatively, sub-structures may be combined to form a structure.

[0006] A reinforcement structure can be understood as a sub-region of the spur gear housing which does not deform or only deforms slightly under the action of forces acting on the spur gear housing. The reinforcement structure can be designed to guide the forces acting on the spur gear housing in a predetermined direction, for example in the longitudinal direction of the reinforcement structure. Alternatively or additionally, the reinforcement structure can be designed to absorb the forces acting on the spur gear housing so that these forces cannot be transmitted to other sub-regions of the spur gear housing. For example, the reinforcement structure can have an increased moment of inertia of the area compared to an adjacent sub-region of the spur gear housing. Alternatively or additionally, the reinforcement structure can have a geometric structure, for example with a plurality of ribs or a layer structure suitable for dissipating the forces acting on the spur gear housing.

[0007] The cylindrical gear housing further comprises a plurality of stop structures, each of which is configured to accommodate at least one stop means for the cylindrical gear housing. The stop means can be understood as a fastening means that can be placed on the cylindrical gear housing, by means of which the cylindrical gear housing can be fastened or held, for example, during transport or during operation of the transmission. For example, the stop means can be a lug that can be screwed into the cylindrical gear housing, to which a wire rope or a chain can be fastened. Preferably, a round sling and a chain are used. Alternatively, the stop means can be understood as a connecting element, such as a rod element, by means of which the cylindrical gear housing can be fastened to a fastening structure, such as a bracket or a base. The stop means can be placed on the stop structure in a releasable manner. For example, it can be provided that the stop means is placed on the stop structure for transporting the cylindrical gear housing. The stop means can be removed again before the transmission is put into operation.

[0008] The stop structure can have at least one surface on which the stop device can be placed. For example, the surface can be provided with a hole into which the stop device can be screwed. As long as the function is met, other forms of placement of the stop device are also conceivable. Alternatively or additionally, the stop structure can be shaped to resist forces acting on the stop device, for example tensile forces acting on the stop device.

[0009] The spur gear housing further comprises a plurality of coupling structures, wherein each coupling structure is configured for arranging at least one supply element of the spur gear stage. The supply element of the spur gear stage may be, for example, an oil level sensor, which can detect the oil level inside the spur gear housing. Alternatively or additionally, the supply element may be a temperature sensor, which can detect the temperature inside the spur gear housing. Further examples of supply elements of the spur gear stage may be a supply line for supplying current to the spur gear stage or a supply line for supplying lubricant to the spur gear stage.

[0010] The provision of at least one supply element can be achieved by pre-machining the coupling structure. For example, the coupling structure can be provided with a hole, polished, ground, coated or pre-machined in another way so that the supply element can be placed on the spur gear housing. Alternatively or additionally, the coupling structure can be provided with a connecting element, for example a flange, on which the supply element can be placed. It can be provided that a coupling structure is provided for a plurality of supply elements of a spur gear stage. Alternatively or additionally, it can be provided that a supply element is provided on a plurality of coupling structures.

[0011] The reinforcement structure may include a radially outer absorption region and a radially inner reinforcement region. The absorption region and the reinforcement region may be arranged distributed in the circumferential direction of the spur gear housing. The radial direction of the spur gear housing may be defined starting from the longitudinal axis of the spur gear housing. The absorption region may have at least one surface or face, which is configured to absorb forces acting on the spur gear housing. The reinforcement region may be configured to conduct the absorbed forces. For example, the reinforcement region may have a material thickness increased compared to adjacent regions of the spur gear housing. Alternatively or additionally, the reinforcement region may have a geometric structure configured to conduct forces, for example, with a plurality of reinforcement ribs or a plurality of reinforcement layers. The circumferential direction of the spur gear housing may correspond to the direction along its outer periphery. For example, the absorption region and the reinforcement region may each have a plurality of similar structural elements, which are arranged at a predetermined distance or at a predetermined angle to each other in the circumferential direction. Alternatively or additionally, the absorption region and the reinforcement region may each have a plurality of different structural elements, which are arranged at a predetermined distance or at a predetermined angle to each other. Therefore, the reinforcement structure is arranged along the entire circumference of the spur gear housing.

[0012] The stop structures and the coupling structures are respectively distributed in the circumferential direction of the cylindrical gear housing, and the number of the provided structures is greater than the number required for the use of the cylindrical gear stage. The use of the cylindrical gear stage can be understood as installing or assembling the cylindrical gear stage in the cylindrical gear housing. Additionally, the use of the cylindrical gear stage can be understood as operating or applying the cylindrical gear stage as part of a transmission. In order to use the cylindrical gear stage, for example, only one, two or three stop structures may be required. Alternatively or additionally, in order to use the cylindrical gear stage, for example, only one, two or three coupling structures may be required. Therefore, generally, not all existing stop structures or coupling structures are applied. On the contrary, those stop structures or coupling structures that are necessary or advantageous for the selected use of the cylindrical gear stage can be selected from a plurality of stop structures or a plurality of coupling structures.

[0013] The proposed spur gear housing enables the spur gear housing to be variably adapted to different installation positions. By increasing the number of stop structures or coupling structures, it is ensured that the respective structure occurs multiple times in the circumferential direction of the spur gear housing. The spur gear housing can thus be rotated into a preferred installation position or assembled in this preferred installation position, in which the supply element or the stop means can be arranged on the spur gear housing, for example, in a particularly advantageous manner. Due to the increased number of stop structures and coupling structures, the exact position of the stop structures and the coupling structures does not need to be taken into account when installing the spur gear housing. In addition, the proposed spur gear housing enables the spur gear housing to be variably adapted to different arrangements of spur gear stages accommodated in the spur gear housing. Due to the increased number of stop structures and coupling structures, different spur gear stages can be used in the spur gear housing without taking into account the exact position of the respective structure. Therefore, the proposed spur gear housing can be used in a plurality of different installation positions or with a plurality of different spur gear stages. Finally, the reinforcement structure is distributed along the entire circumference of the spur gear housing. Therefore, when selecting the spur gear stage for use, its arrangement does not need to be taken into account. On the contrary, the reinforcement structure ensures an increased rigidity of the spur gear housing in any case of using the spur gear stage. The proposed spur gear housing is therefore suitable for various uses of the spur gear stage with simultaneously increased rigidity.

[0014] According to one embodiment, the absorption regions and the reinforcement regions are arranged alternately in the circumferential direction of the spur gear housing. The absorption regions and the reinforcement regions can be arranged alternately in the circumferential direction of the spur gear housing, so that each reinforcement region is followed by an absorption region in the circumferential direction, or each absorption region is followed by a reinforcement region in the circumferential direction. By the alternating arrangement of the reinforcement regions and the absorption regions, the absorbed forces can be absorbed and conducted away along the entire circumference of the spur gear housing. This increases the rigidity of the spur gear housing.

[0015] According to another embodiment, the reinforcement structure extends in a wave-like manner in the circumferential direction of the spur gear housing. The wave-like course of the reinforcement structure can be understood as a reinforcement structure having a substantially continuous outer contour, which is configured in the form of repeated radially outer projections and radially inner depressions. It can be provided that the top end of the projection or the bottom end of the depression is not configured to taper, but rather to flatten. With the aid of the wave-like course, the wall thickness of the housing can be reduced, or the rigidity with respect to bending loads can be increased.

[0016] According to a further embodiment, the wave-shaped reinforcement structure has a substantially constant wall thickness. The wall thickness can be understood as the distance between the radially outer outer side and the radially inner inner side of the wave-shaped structure that runs around in the circumferential direction. This distance can be substantially constant along the entire circumference of the spur gear housing. As a result, material can be saved without thereby reducing the rigidity of the spur gear housing.

[0017] According to one embodiment, the stop structure can respectively have at least one radially outer stop region for accommodating at least one stop device and at least one radially inner reinforcement region for conducting the force acting on the stop structure. The radial direction of the spur gear housing can be defined starting from the longitudinal axis of the spur gear housing. The stop region can have at least one surface, which is configured to accommodate the stop device. For example, the reinforcement region can have a material thickness increased compared to the adjacent region of the spur gear housing. Alternatively or additionally, the reinforcement region can have a geometric structure configured to conduct the force, for example, with a plurality of reinforcement ribs or a plurality of reinforcement layers. By arranging the stop region radially outside the reinforcement region, the force acting on the spur gear housing from the outside through the stop device can be easily absorbed and conducted into the reinforcement region. Sufficient transport carrying capacity is thereby ensured.

[0018] According to another embodiment, the stop area is configured as a stop bulge, and the reinforcement area is configured as a reinforcement rib. The stop bulge can be understood as a cylindrical or conical element having a substantially flat upper side. The upper side of the stop bulge can be configured to accommodate a stop device. The reinforcement rib can be understood as a reinforcement area whose extension in the longitudinal direction can be significantly greater than the extension in the transverse direction. Alternatively or additionally, it can be provided that the reinforcement rib tapers radially inward. The stop bulge or the reinforcement rib are particularly suitable for arranging a stop device or deriving an effective force due to their respective design schemes.

[0019] According to another embodiment, a plurality of stop cams are arranged at a predetermined distance from each other in the circumferential direction of the cylindrical gear housing. The predetermined distance can be predetermined based on an angle. For example, a plurality of stop cams can be arranged at an angle of 30º, 45º, 60º, 90º or 120º relative to each other in the circumferential direction. In addition, a plurality of stop cams can be arranged at a combination of multiple angles relative to each other in the circumferential direction. For example, two of the stop cams can be arranged at an angle of 60º relative to each other in the circumferential direction, and two of the stop cams can be arranged at an angle of 120º relative to each other in the circumferential direction. Other combinations of the angular arrangements of the stop cams are also conceivable. By means of a predetermined distance, the arrangement of the stop cams can be adapted to a variety of uses of the cylindrical gear housing.

[0020] According to a further embodiment, the coupling structure can be arranged at least partially offset radially inwards with respect to the absorption region radially outside the reinforcement structure. For example, the reinforcement structure can be designed as a wave-shaped structure and have wave crests or wave troughs. One of the coupling structures can be arranged between two wave crests in each case. Within the scope of the proposed spur gear housing, further embodiments of the relative arrangement of the reinforcement structure and the coupling structure to the reinforcement structure are also conceivable. By designing the coupling structure offset radially inwards with respect to the absorption region, the structural space available in the spur gear housing can be optimally utilized.

[0021] According to further embodiments, the coupling structures can be arranged at substantially the same distance from each other in the circumferential direction of the cylindrical gear housing. The distance can be predetermined based on a predetermined angle. For example, the coupling structures can be arranged at an angle of 30º or 45º or 60º or 90º or 120º relative to each other in the circumferential direction. In addition, the coupling structures can be arranged at a combination of multiple angles relative to each other in the circumferential direction. For example, two coupling structures can be arranged at an angle of 45º relative to each other in the circumferential direction, and two coupling structures can be arranged at an angle of 90º relative to each other in the circumferential direction. Further combinations of angular arrangements are also conceivable. By means of substantially the same distance, the arrangement of the coupling structures can be adapted to the selected application of the cylindrical gear housing.

[0022] According to a further embodiment, the coupling structure can have a substantially flat coupling region for arranging at least one supply element. A substantially flat coupling region can be understood as a region of the coupling structure whose curvature is below a predetermined threshold value. A substantially flat coupling region can be machined in a manner that is particularly advantageous for arranging the supply element. Thus, the arrangement of the supply element by means of machining is facilitated by the substantially flat coupling region.

[0023] Another embodiment of the spur gear housing can have at least one retaining means connected to the spur gear housing for retaining the lubricant line of the spur gear stage. For example, the retaining means can be designed in the form of a cylindrical opening, into which the lubricant line can be inserted. Alternatively, the retaining means can be designed, for example, as a groove in the casting of the spur gear housing, in which the lubricant line can be guided. The lubricant line can be understood, for example, as a line, via which a lubricant, for example lubricating oil, can be supplied to the spur gear stage. By connecting the retaining means to the spur gear housing, mechanical reworking of the spur gear housing is no longer necessary or is required only with little effort during the installation of the lubricant line.

[0024] According to another embodiment, the spur gear housing comprises a housing pot and a housing cover that can be mounted on the housing pot. The housing pot can be that region of the spur gear housing that can be connected to another transmission housing. The housing cover can be that region of the spur gear housing that faces the motor connected to the spur gear stage. The housing pot and the housing cover mounted thereon can form a hollow space between them, in which the spur gear stage can be accommodated. The two-piece design of the spur gear housing facilitates the installation of the spur gear stage into the spur gear housing.

[0025] According to one embodiment, a further reinforcement structure can be provided on the housing cover, which further reinforcement structure extends in a wave-like manner in the circumferential direction of the housing cover. Similar to the reinforcement structure described above, the further reinforcement structure can extend in a wave-like manner in the circumferential direction of the housing cover. By forming the wave-like reinforcement structure on the housing pot and the housing cover, the rigidity of the two-part spur gear housing can be further increased.

[0026] According to another embodiment, a plurality of additional coupling structures can be provided on the housing cover. The additional coupling structures can be distributed in the circumferential direction of the spur gear housing. The distribution in the circumferential direction or the number of additional coupling structures can be realized similarly to the distribution in the circumferential direction or the number of coupling structures according to the above-described embodiments. By configuring the additional coupling structures on the housing cover, the adaptability of the spur gear housing to different applications of the spur gear stage can be further improved.

[0027] According to further embodiments, the spur gear housing can be configured to selectively accommodate spur gear stages of different structural types and to operate with spur gear stages of different structural types. The spur gear stages can differ, for example, in terms of torque levels. Alternatively or additionally, the spur gear stages can differ, for example, in terms of their geometric dimensions, their installation positions or their uses. Any of the spur gear stages of different structural types can be used in the spur gear housing. However, it is possible to use the spur gear housing with all spur gear stages of different structural types by designing the spur gear stage according to the invention.

[0028] According to another embodiment, the spur gear housing can include a connecting section for connecting the spur gear housing to another transmission housing and a receiving section for receiving the spur gear stage on the output side. The diameter of the connecting section can be smaller than the diameter of the receiving section. The connecting section and the receiving section can be designed in one piece. Alternatively, the connecting section can be assembled on the receiving section. For example, the diameter of the receiving section can be defined by the diameter of the spur gear stage received therein. For example, the diameter of the connecting section can be defined by the diameter of the other transmission housing. Due to the smaller diameter of the connecting section, the spur gear housing can also be used together with another transmission housing having a smaller diameter than the spur gear housing. This improves the possibility of using the spur gear housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A spur gear housing with a housing cup and a housing cover according to one embodiment of the present invention is schematically shown.

[0030] Figure 2a-2c Different views of a housing cup of a spur gear housing according to embodiments of the present invention are schematically shown.

[0031] Figure 3a-Figure 3b Different views of a housing cover of a spur gear housing according to embodiments of the present invention are schematically shown.

[0032] Figure 4a-4c Different views of the reinforcement structure and the stop structure of the spur gear housing according to embodiments of the present invention are schematically shown. DETAILED DESCRIPTION

[0033] Figure 1 A cylindrical gear housing 10 according to an embodiment of the present invention is schematically shown. The cylindrical gear housing 10 includes a housing pot 10a and a housing cover 10b. A hollow space is formed between the housing pot 10a and the housing cover 10b, in which a cylindrical gear stage (not shown) can be accommodated. The cylindrical gear housing 10 is designed with different structures to improve rigidity and adaptability to different installation positions of the cylindrical gear stage, which will be explained in more detail with reference to Figures 2 to 4.

[0034] Figure 2a to Figure 2c Schematically shows the Figure 1 The housing pot 10a of the spur gear housing 10 of the embodiment of the present invention is shown in different views. The housing pot 10a of the spur gear housing 10 comprises a reinforcement structure 12 for absorbing the forces acting on the spur gear housing 10. The reinforcement structure 12 extends in a wave-like manner in the circumferential direction of the spur gear housing 10. For other designs of the reinforcement structure 12, see Figure 4a and 4b Elaborate in more detail.

[0035] Figure 4a and Figure 4b A detailed view of the reinforcement structure 12 of the cylindrical gear housing 10 is shown. Figure 4a As can be seen in the exemplary embodiment of FIG. 1 , the reinforcement structure 12 comprises a radially outer absorption region 12 a for absorbing forces acting on the spur gear housing. Figure 4a In the embodiment of FIG. 1 , the absorption region 12 a is formed by the radially outer wave crests of the wave-shaped reinforcement structure 12. Figure 4b As can be seen from the embodiment of FIG. 1 , the reinforcement structure 12 also has a radially inner reinforcement region 12 b. Figure 4b In the embodiment of FIG. 5 , the reinforcement area 12 b is formed by the radially inner troughs of the reinforcement structure 12 extending in a wave shape.

[0036] The housing pot 10a of the spur gear housing 10 further includes a plurality of stop structures 14, wherein each stop structure is configured to accommodate at least one stop means for the spur gear housing 10. The stop structures 14 are arranged at Figure 2a and Figure 2b In the illustration of FIG. , it is shown in the form of a stop convex portion. Figure 2c As can be seen in the figure, a plurality of stop projections 14 are arranged at a predetermined distance from each other in the circumferential direction of the housing cup 10a of the spur gear housing 10. Figure 2c In the embodiment of the present invention, two stop protrusions of the stop protrusion 14 are arranged at an angle of 60° relative to each other. In addition, two stop protrusions of the stop protrusion 14 are arranged at an angle of 120° relative to each other. Therefore, the spur gear housing 10 can be rotated 60° or 120° accordingly to select the corresponding stop structure 14 for arranging at least one stop device for the spur gear housing 10. Figure 4c Further embodiments of the stop structure 14 are explained in more detail.

[0037] Figure 4c A detailed view of the stop structure 14 of the cylindrical gear housing 10 is shown. Figure 4c As can be seen from the exemplary embodiment of FIG. 1 , the stop structure 14 comprises a radially outer stop region 14a for accommodating at least one stop means and at least one radially inner reinforcement region 14b for dissipating forces acting on the stop structure 14. Figure 4c In the embodiment of FIG. 1 , the stop region 14 a is configured as a stop projection, and the reinforcement region 14 b is configured as a reinforcement rib.

[0038] Furthermore, the housing pot 10a of the spur gear housing 10 comprises a plurality of coupling structures 16, wherein each coupling structure is configured for arranging at least one supply element of a spur gear stage. The coupling structures 16 have a substantially flat surface, such as in Figure 2a and Figure 2c As can be seen in the illustration of . The essentially flat surface can be machined with little effort for arranging the supply element. Figure 2c As can be seen from the embodiment of FIG. 1 , the coupling structures 16 are arranged at an angle of 90° relative to each other in the circumferential direction of the spur gear housing 10. Therefore, the spur gear housing 10 can be rotated 90° in each case to select the corresponding coupling structure 16 to set the supply element.

[0039] In reference Figure 2c In the embodiment of the present invention, a plurality of retaining means 18 are also connected to the spur gear housing 10. The retaining means 18 are designed to retain the lubricant lines for the spur gear stages. Figure 2c In the embodiment of FIG. 1 , the retaining means 18 are shown in the form of holes in a rib of the spur gear housing 10 .

[0040] Figure 3a and Figure 3b Schematically shows the Figure 1 Different views of the housing cover 10b of the spur gear housing 10 of the embodiment of FIG. A further reinforcement structure 112 is provided on the housing cover 10b, which extends in a wave-like manner in the circumferential direction of the housing cover 10b. The further reinforcement structure 112 is similar to the embodiment according to Figure 2a to Figure 2c The reinforcement structure 12 of the exemplary embodiment is constructed as a reinforcement structure.

[0041] In addition, the housing cover 10b further includes a plurality of additional coupling structures 116. The additional coupling structures 116 are respectively distributed in the circumferential direction of the housing cover 10b. The additional coupling structures 116 are similar to those according to Figure 2a to Figure 2c The connecting structure 16 of the exemplary embodiment is constructed as follows.

[0042] Reference numerals list

[0043] 10Cylindrical gear housing

[0044] 10a Shell tank

[0045] 10b Housing cover

[0046] 12;112Reinforced structure

[0047] 12a Absorption area, peak

[0048] 12b Reinforced area, trough

[0049] 14 Stop structure

[0050] 14a stop area, stop convex part

[0051] 14b Reinforced area, reinforcement ribs

[0052] 16; 116 connection structure

[0053] 18 Holding device

Claims

1. A spur gear housing (10), the spur gear housing being configured to accommodate a spur gear stage of a transmission, the spur gear housing (10) include: - Reinforced structure (12; 112), the reinforcement structure is configured to absorb the force acting on the cylindrical gear housing (10); - a plurality of stop structures (14), wherein each stop structure is configured to receive at least one stop means for the spur gear housing (10); and - a plurality of coupling structures (16; 116), wherein each coupling structure is configured to provide at least one supply element of a spur gear stage, The reinforcement structure (12; 112) comprises a radially outer absorption region (12a) and a radially inner reinforcement region (12b), wherein the radially outer absorption region and the radially inner reinforcement region are distributed in the circumferential direction of the cylindrical gear housing (10). The stop structure (14) and the connecting structure (16; 116) are respectively distributed in the circumferential direction of the spur gear housing (10), and the number of the stop structures (14) and the connecting structures (16; 116) is greater than the number required for using the spur gear stage.

2. The cylindrical gear housing (10) according to claim 1, It is characterized in that The absorption regions (12a) and the reinforcement regions (12b) are arranged alternately in a circumferential direction of the spur gear housing (10).

3. The cylindrical gear housing (10) according to claim 1 or 2, It is characterized in that The reinforcement structure (12; 112) extends in a wave-like manner in the circumferential direction of the spur gear housing (10).

4. The cylindrical gear housing (10) according to claim 3, It is characterized in that The wave-shaped reinforcing structure (12; 112) has a substantially constant wall thickness.

5. The cylindrical gear housing (10) according to any one of the preceding claims, It is characterized in that The stop structures (14) each comprise at least one radially outer stop region (14a) for accommodating at least one stop means and at least one radially inner reinforcement region (14b) for dissipating forces acting on the stop structure (14).

6. The cylindrical gear housing (10) according to claim 5, It is characterized in that The stop region (14a) is designed as a stop projection, and the reinforcement region (14b) is designed as a reinforcement rib.

7. The cylindrical gear housing (10) according to claim 6, It is characterized in that A plurality of stop protrusions are arranged at a predetermined distance from each other in a circumferential direction of the spur gear housing (10).

8. The cylindrical gear housing (10) according to any one of the preceding claims, It is characterized in that The coupling structure (16; 116) is arranged at least partially offset radially inwardly with respect to the outer absorption region (12a).

9. The cylindrical gear housing (10) according to claim 8, It is characterized in that The coupling structures (16; 116) are arranged at substantially the same distance from one another in the circumferential direction of the spur gear housing (10).

10. The cylindrical gear housing (10) according to claim 8 or 9, It is characterized in that The coupling structure (16; 116) has a substantially flat coupling area for arranging at least one supply element.

11. The cylindrical gear housing (10) according to any one of the preceding claims, Features Also provided is at least one retaining means (18) connected to the spur gear housing (10) for retaining a lubricant line for the spur gear stage.

12. The cylindrical gear housing (10) according to any one of the preceding claims, It is characterized in that The spur gear housing (10) comprises a housing cup (10a) and a housing cover (10b) which can be mounted on the housing cup (10a).

13. The cylindrical gear housing (10) according to claim 12, It is characterized in that A further reinforcement structure (112) is arranged on the housing cover (10b), which extends in a wave-like manner in the circumferential direction of the housing cover (10b).

14. The cylindrical gear housing (10) according to claim 12 or 13, It is characterized in that A plurality of further connection structures (116) are arranged on the housing cover (10b), wherein the further connection structures (116) are respectively distributed in the circumferential direction of the spur gear housing (10).

15. The cylindrical gear housing (10) according to any one of the preceding claims, It is characterized in that The spur gear housing (10) is designed to selectively accommodate spur gear stages of different designs and to operate with the spur gear stages of different designs.

16. The cylindrical gear housing (10) according to any one of the preceding claims, It is characterized in that The spur gear housing (10) comprises, on the output side, a connecting section for connecting the spur gear housing (10) to another transmission housing and a receiving section for receiving the spur gear stage, wherein the diameter of the connecting section is smaller than the diameter of the receiving section.

Images