BEVEL GEAR DIFFERENTIAL WITH A HOUSING

Description

[0001] The present invention relates to a bevel gear differential according to the preamble of claim 1, as is known essentially from JP H11 148 548 A.

[0002] WO 2019 / 202 047 A1 also describes a bevel gear differential with a multi-part housing made of sheet metal.

[0003] Further state of the art can also be found in CA 2 810 870 A1.

[0004] Such differential housings are conventionally manufactured as one-piece or two-piece units from ductile iron. This manufacturing method necessitates subsequent machining of the housing castings. The drive gear surrounding the housing is often bolted or welded to the differential housing. However, such ductile iron differential housings are relatively heavy because these castings require a certain minimum thickness.

[0005] Furthermore, a two-part differential housing is known, for example, from DE 40 42 173 A1, in which the two housing parts are made of sheet metal and welded to the drive gear via a parallel butt joint. However, this welding process introduces a considerable amount of heat into the housing, which can result in geometric distortions. Consequently, such housings must undergo an undesirable finishing process to meet tolerance requirements.

[0006] The invention is therefore based on the objective of providing a bevel gear differential with a differential housing that has the lowest possible weight, can be manufactured easily and requires as few post-processing steps as possible.

[0007] This problem is solved by a bevel gear differential with the features of claim 1, wherein the two housing parts are each made of sheet metal and wherein at least one pin projects from the first housing part, which is formed integrally with the first housing part and extends through a corresponding opening formed in the second housing part, wherein a free end of the pin projecting beyond the second housing part is plastically deformed such that the first housing part is firmly or inseparably connected to the second housing part. For example, the free end of the at least one pin can be plastically deformed by crimping and / or by rolling, whereby a roller or a ball can be rolled over the free end of the respective pin under high pressure, causing it to begin to flow.

[0008] In the bevel gear differential according to the invention, the torque transmission from the drive gear to the transmission components of the differential is carried out indirectly via the housing, in that the housing in turn transmits the drive forces to the differential pin and the compensating bevel gears rotatably mounted on it.

[0009] Since, in the bevel gear differential according to the invention, the drive forces are introduced into the differential bolt via the housing, undesirably high bearing stresses can occur along the receiving bores due to the relatively thin sheet metal thickness of the first housing part. These bores are diametrically opposed to each other in the first housing part to receive the free ends of the differential bolt.

[0010] To counteract the development of high bearing stresses in the hole, the invention provides that the material of the housing wall surrounding the respective receiving bore is plastically formed into a cylindrical collar that surrounds the respective free end of the differential bolt. The force transmission between the housing and the differential bolt thus does not occur solely through the sheet thickness of the first housing part; rather, the forces to be transmitted are also distributed over the height of the collar, thereby effectively counteracting the development of undesirably high bearing stresses in the hole.

[0011] As an alternative to the indirect power transmission from the drive gear to the differential pin via the housing, the power transmission from the drive gear to the differential pin can also occur directly according to the invention. In such an embodiment, the free ends of the differential pin protrude from the first housing part, with the drive gear being connected to the free ends of the differential pin. The differential housing essentially serves only as an enclosure for the transmission components. Due to the fact that the differential housing is essentially free of forces in this embodiment, the housing can be manufactured from even thinner sheet metal, resulting in further weight and cost savings. In this embodiment as well, the differential pin can penetrate two diametrically opposed receiving bores in the first housing part.

[0012] In both embodiments according to the invention, the differential bolt can be rigidly arranged relative to the first housing part and / or the drive gear, with the compensating bevel gears rotatably mounted on the differential bolt.

[0013] Because both housing parts are made of sheet metal, they can be formed cost-effectively, for example, by deep drawing, although other forming techniques such as internal high-pressure forming can also be used. Furthermore, due to the fact that both housing parts are made of sheet metal, the housing has a relatively low weight, especially since the wall thickness of the housing can be made almost constant, which can lead to a further weight advantage compared to conventional cast housings.

[0014] In particular, the first housing part can be designed in such a way that it is able to accommodate the individual transmission components of a bevel gear differential, in particular to accommodate a differential bolt, at least one compensating bevel gear rotatably mounted on it and two axle side shaft bevel gears meshing with the compensating bevel gear.

[0015] A further advantage of the housing according to the invention is that, due to the two-part design of the differential housing, no large radial opening in the housing is required for assembly purposes. Therefore, the section modulus in the direction of rotation is approximately constant, which has a positive effect on the guidance of the drive gear.

[0016] A significant advantage of the differential housing according to the invention lies particularly in the fact that it can be manufactured with virtually no distortion due to the fact that the two housing parts are not welded, but rather connected to each other via pins projecting from the first housing part. This type of pin connection is made possible by the fact that both housing parts are made of sheet metal. The free ends of the pins, which are integrally formed with the first housing part, can be plastically deformed because they are also made of sheet metal, thus firmly connecting the first housing part to the second housing part.For example, the free end of at least one pin can be plastically deformed by crimping and / or rolling. This involves rolling a roller or ball under high pressure over the free end of the respective pin, causing it to flow. Through crimping or rolling, the pin can completely fill the opening in the second housing part by the flowing material. This creates a play-free connection between the two housing parts.

[0017] Regarding the (at least one) pin of the first housing part mentioned in connection with the invention, it should be noted that this pin can be formed by any extension of the first housing part. For example, the pin can have a flat cross-section. The cross-section of the pin can, for example, be straight or curved (particularly when viewed along the circumferential direction of the first housing part). The respective pin can, for example, project from the rest of the first housing part as a tongue-like section. The pin(s) can, for example, project from a circumferential edge section of the first housing part.

[0018] Regarding the one-piece formation of the pin with the first housing part, the pin can in particular be formed in an original integral, materially bonded manner with the first housing part.

[0019] The following section discusses preferred embodiments of the bevel gear differential, whereby further embodiments may also be derived from the dependent claims, the description of the figures and the figures themselves.

[0020] According to one embodiment, the opening of the second housing part, through which the pin of the first housing part extends, can widen at least partially towards the free end of the pin, with the widened area of ​​the opening being at least partially filled with material that has been plastically deformed at the free end of the pin. Preferably, the displaced pin material can completely fill the opening. The second housing part is thus, in effect, pulled against the first housing part and secured to it without play.

[0021] As mentioned previously, the first housing part can be designed to accommodate the individual transmission components of a bevel gear differential. According to one embodiment, the first housing part can have a cup-like shape with a cup base and a cup rim, wherein the cup base has an opening for the passage of a first axle shaft and at least one pin projects from the cup rim. This housing cup formed by the first housing part thus essentially constitutes the actual receptacle for the transmission components of the bevel gear differential.

[0022] In contrast, the second housing part can, like a lid, close the cup-shaped first housing part along the cup rim, without the second housing part itself forming a receiving space for the transmission components. In particular, the second housing part can have a lid section that forms an opening for the passage of a second axle shaft and which, when connected to the first housing part, essentially closes the first housing part, especially the opening formed by the cup rim of the first housing part.

[0023] According to a further embodiment, the first housing part may have a circumferential housing wall between the bottom and the rim of the housing, wherein the housing wall has a flat surface, preferably two opposing flat surfaces, as a contact surface for a flat back surface of a respective compensating bevel gear. Between the flat surface(s), the housing wall may have the shape of a cylindrical surface. The flat surfaces in question, which serve as contact surfaces for a flat back surface of a respective compensating bevel gear, can be produced during the deep drawing of the first housing part, so that no additional machining steps are required.

[0024] As a further embodiment, the first housing part can have a circular or cylindrical cup wall. In this case, the contact surfaces required for the compensating bevel gears can be realized by cylindrical segment-shaped fillers. For example, the fillers can have a cylindrical segment-shaped contour for contact with the cup wall, whereas they have a flat surface facing the contact surface of the compensating bevel gear – if the compensating bevel gear has a flat back surface – or a complementary curved surface – if the compensating bevel gear has a spherical back surface. Thus, compensating bevel gears with a flat contact surface or with a spherical spherical contact surface can be used.

[0025] The cup wall can also be stiffened axially by additional beads. These beads can be inserted into the cup wall from the inside, but preferably from the outside. This further increases the load-bearing capacity of the first housing part and reduces component stresses accordingly.

[0026] As mentioned previously, the second housing part can have a cover section which, when connected to the first housing part, essentially closes the first housing part. According to a further embodiment, the second housing part can also have a flange section, particularly a curved one, which is formed integrally with the cover section and surrounds it circumferentially.

[0027] According to a particular embodiment, the flange section may have a circumferential free edge extending in a plane parallel to and between two planes defined by the cup base and the cup rim. Thus, if the cover section of the second housing part closes the first housing part along its cup rim, the free edge of the flange section has a certain axial offset relative to the cover section, such that the free edge of the flange section lies radially outside the cup wall of the first housing part and surrounds it circumferentially. The free edge of the flange section of the second housing part can therefore serve as a mounting surface for attaching the differential drive gear. The drive gear can be frictionally engaged, positively engaged, or welded to the flange section.

[0028] As a preferred embodiment of the second housing part, the free edge of the flange section opposite the cover section can be designed with beads in the radial direction to increase stiffness.

[0029] In some embodiments, at least one pin projecting from the first housing part can extend axially with respect to an axis of rotation of the housing or the bevel gear differential, in particular in a straight line along the axis of rotation.

[0030] In some embodiments, the first housing part may have several protruding pins, in particular in a regular or irregular distribution along the circumference of the first housing part.

[0031] According to another embodiment, the drive gear surrounding the differential housing can be connected in a rotationally fixed manner to the free edge of the flange section of the second housing part.

[0032] The invention will now be described in the following by way of example only, with reference to the drawings in which: Fig. 1 shows a section through a bevel gear differential according to a first embodiment; Fig. 2 shows a perspective sectional view through the differential housing of the bevel gear differential according to the embodiment of Fig. 1 Fig. 3 shows a perspective view of the differential housing of the bevel gear differential. Fig. 2 Fig. 4 shows a section through a bevel gear differential according to a second embodiment; Fig. 5 shows a perspective sectional view of the differential housing of the bevel gear differential according to the embodiment of Fig. 4 in the area of ​​the pin connection; Fig. 6 shows a perspective view of the differential housing of the bevel gear differential of the Fig. 4Fig. 7 shows a view of an embodiment of a first housing part with flat surfaces and stiffening ribs; Fig. 8 shows a perspective view of the first housing part of the Fig. 7 Fig. 9 shows a view of an embodiment of a first cylindrical housing part with stiffening ribs; Fig. 10 shows a perspective view of the first housing part of the Fig. 8 Fig. 11 shows, in different representations, a filler piece for use in the first housing part of the Figs. 9 and 10 Fig. 12 shows a sectional view of an embodiment of a second housing part provided with stiffening ribs; and Fig. 13 shows a perspective view of the second housing part of the Fig. 12 shows.

[0033] The following will first refer to the Figs. 1 to 3 a first embodiment of a bevel gear differential according to the invention with the housing 10 according to the invention has been discussed.

[0034] As in particular the perspective section view of the Fig. 2 As can be seen from the figure showing the differential housing 10 itself, this housing comprises a first housing part 12 and a second housing part 14, which is connected to the first housing part 12 in the manner according to the invention via a pin connection described in more detail below. Both the first housing part 12 and the second housing part 14 are made of sheet metal, for example by deep drawing, whereby other techniques such as internal high-pressure forming can also be used as forming processes.

[0035] The first housing part 12 has a cup-like shape with a cup base 16 and a cup rim 18, wherein a circumferential cup wall 20 of the first housing part 12 extends in the axial direction between the cup base 16 and the cup rim 18. As can be seen in particular from the Fig. 2The cup wall 20 forms two opposing flat surfaces 22, which serve as a contact surface for the flat back of a respective compensating bevel gear 30, as shown in the sectional view of the Fig. 1 can be removed. The flat surfaces 22 in question along the cup wall 20 can be formed during the deep drawing process of the first housing part 12, so that no separate work steps are required to form the flat surfaces 22 in question.

[0036] How the Figs. 2 and 3 Furthermore, it can be seen that an opening 24 for the passage of a first axle shaft (not shown) is formed in the cup bottom 16, which can be connected via a splined connection to a first axle side shaft bevel gear 26, which in turn meshes with the two compensating bevel gears 30.

[0037] The cup-shaped first housing part 12 is closed at the cup rim 18 by the second housing part 14. More precisely, the second housing part 14 has a flat cover section 32, which forms an opening 25 for the passage of a second axle shaft (not shown), which can be connected via a splined connection to a second axle side shaft bevel gear 28, which in turn meshes with the two compensating bevel gears 30, just like the first axle side shaft bevel gear 26.

[0038] As the overview of the Figs. 1 and 2 Furthermore, the second housing part 14 forms a flange section 34 integrally formed with the cover section 32, at the free edge 36 of which, in the embodiment according to the Fig. 1The drive gear 31 of the differential is attached, which will be discussed in more detail below. The flange section 34 is curved in such a way that the free edge 36 extends in a plane that is parallel to and between the two planes defined by the cup bottom 16 and the cup rim 18, the free edge 36 being connected to the cover section 32 via a tapered section 33 of the flange section 34.

[0039] The following will now focus in particular on the Fig. 2 and 5 The inventive pin connection for fastening the first housing part 12 to the second housing part 14 has been discussed. It should be noted at this point that, although the Fig. 5Referring to the second embodiment of the differential housing 10 according to the invention, in this embodiment the pin connection between the two housing parts 12, 14 is designed in the same way as in the first embodiment, therefore the same applies here to the Fig. 5 Reference can be made to this.

[0040] As in particular the Fig. 5 Several elongated pins 38 project from the first housing part 12, and in particular from its cup rim 18, such that they extend axially in continuation of the cup wall 20. However, for stability reasons, no pins 38 are provided in axial continuation of the at least one flat surface 22 on the cup rim 18, as is also shown in particular by the Fig. 8This can be seen from the following, which will be discussed in more detail below. In contrast, in the second housing part 14, and in particular in its cover section 32, arc-shaped openings 40 corresponding to the pins 38 are formed, so that each pin 38 extends through a corresponding opening 34. In their initial state, the pins 38 have a length such that they project a certain amount beyond the cover section 32 of the second housing part 14.

[0041] After the pins 38 have been inserted into the openings 40 in question, the free ends of the pins 38, or the pin projections, can be plastically deformed in such a way that the first housing part 12 is firmly or inseparably connected to the second housing part 14. For example, the free ends of the pins 38 can be plastically deformed by crimping and / or by rolling, whereby a roller or a ball is rolled over the free end of the respective pin under high pressure.

[0042] As in particular the Fig. 5As material is removed, the openings 40 in the lid section 32 widen towards the respective free ends of the pins 38, allowing the plastically deformed pin material at the free end of each pin 38 to flow into the widened areas of the openings 40. This pulls the second housing part 14 towards the first housing part 12 until the lid section 32 of the second housing part 14 abuts the cup rim 18 of the first housing part 12.

[0043] As mentioned previously, in the embodiment of the Fig. 1The drive gear 31 surrounding the differential housing 10 is connected to the free edge 36 of the flange section 34 of the second housing part 14. For example, the drive gear 31 can be welded or bolted to the free edge 36. The torque is thus transmitted from the drive gear 31 to the differential housing 10, which in turn transmits the torque via a differential pin 29 rigidly connected to the differential housing 10, on which the two compensating bevel gears 30 are rotatably mounted, to the differential gear housed in the differential housing 10.

[0044] To prevent excessive bearing stresses from affecting the edges of the receiving bores 42, through which the free ends of the differential bolt 29 extend outwards, the material of the cup wall 20 surrounding each receiving bore 42 is plastically deformed outwards into a collar 44 that surrounds the respective free end of the differential bolt 29. This distributes the forces transmitted from the housing 10 to the differential bolt 29 over a larger area, thereby minimizing the bearing stresses as desired.

[0045] The following will now refer to the Figs. 4 to 6The second embodiment of the differential housing 10 according to the invention and the corresponding bevel gear differential will be discussed. Since this second embodiment differs essentially only with regard to the power transmission from the drive gear 31 to the differential pin 29, the focus will be on the differences compared to the embodiment according to the Figs. 1 to 3 distinguishing features were discussed.

[0046] In the embodiment according to the Figs. 4 to 6The power transmission from the drive gear 31 to the differential pin 29 does not occur indirectly, or not exclusively, via the differential housing 10; rather, the drive gear 31 is directly connected to the differential pin 29, for which purpose, for example, two receiving grooves can be formed along the inner circumference of the gear ring to receive the free ends of the differential pin 29, into which the differential pin 29 engages in a positive-locking manner, so that it can be driven along by the rotation of the drive gear 31.

[0047] The differential housing 10 is therefore essentially force-free and serves merely as an enclosure or casing for the individual transmission components of the differential. Accordingly, in the embodiment according to the Figs. 4 to 6There is no risk of increased bearing stresses along the receiving bores 42 through which the differential bolt 29 extends outwards from the differential housing 10. Therefore, the bore diameter of the receiving bores 42 can be slightly larger than the diameter of the differential bolt 29. Since no increased bearing stresses can occur along the receiving bores 42 in this embodiment, it is not necessary in this embodiment to treat the material of the housing wall 20 surrounding the respective receiving bore 42 as in the embodiment according to the Figs. 1 to 3 to transform it into a collar.

[0048] The following will now refer to the Figs. 7 to 13 some special embodiments of the first housing part 12 and the second housing part 14 were discussed.

[0049] The Figs. 7 and 8Figure 1 shows an embodiment of a first housing part 12, which also has flat surfaces 22 as contact surfaces for the flat back of compensating bevel gears. Since these flat surfaces 22 have a lower buckling stiffness than the curved areas of the cup wall 20, no pins 38 are provided in this embodiment in axial extension of the at least one flat surface 22 at the cup rim 18, as otherwise there would be a risk that the flat surfaces would buckle when the pins are riveted. To stiffen the flat surfaces 22, several stiffening ribs 46 are therefore incorporated into the flat surface 22 in this embodiment, which extend outwards in a star-shaped or radial manner from the receiving bore 42 for the pin 38. The stiffening ribs 46 can be incorporated into the cup wall 20 from the inside and thus form a respective bulge on the outside of the cup wall 20.The beads 46 in question allow the load-bearing capacity of the first housing part 12 and, in particular, the load-bearing capacity of the flat surfaces 22 to be further increased and the component stresses to be reduced accordingly.

[0050] Similarly, in the embodiment of the Figs. 7 and 8 Several elongated and parallel stiffening ribs 48 are incorporated into the circumferential cup wall 20, preferably extending in the axial direction. These stiffening ribs 48 are introduced into the cup wall 20 from the outside and thus form a respective bulge on the inside of the cup wall 20.

[0051] The in the Figs. 9 and 10 The illustrated embodiment of a first housing part 12 essentially corresponds to that of the Figs. 7 and 8, however, in this embodiment the cup wall 20 has a cylindrical shape and is therefore not weakened by any flat surfaces. Accordingly, in this embodiment, evenly spaced pins 38 are provided along the entire cup rim 18, since here, unlike in the embodiment of the Figs. 7 and 8 The described denting problem does not exist.

[0052] So that, even in the embodiment of the first housing part 12 according to the Figs. 9 and 10 Since compensating bevel gears 30 with a flat back surface can be used, the gap between the cylindrical cup wall 20 and the back surface of the respective compensating bevel gear 30 can be bridged or filled with a filler piece 52 or a thrust washer, as shown in the Fig. 11shown and which has a spherical segment or cylindrical segment contour 54 for contact with the cup wall 20, whereas the filling piece 52 has a flat surface 56 towards the rear of the compensating bevel gear 30.

[0053] In order to give the second housing part 14 more stability, the following features are incorporated in the embodiment according to the Fig. 12 Several stiffening beads 50 are incorporated into the flange section 34, arranged regularly relative to each other in the circumferential direction. More precisely, these stiffening beads 50 are incorporated from the inside of the housing into both the tapered section 32 of the flange section 34 and into the free edge 36. The stiffening beads 50 have a saddle-roof shape with two surfaces 58 each, which together form a common ridge 60. Reference symbol list

[0054] 10 Differential housing 12 First housing part 14 Second housing part 16 Cup bottom of 12 18 Cup rim of 12 20 Cup wall of 12 22 Flat surface at 20 24 Opening in 16 25 Opening in 32 26 First axle side shaft bevel gear 28 Second axle side shaft bevel gear 29 Differential bolt 30 Compensating bevel gears 31 Drive gear 32 Cover section 33 Tapered section of 34 34 Flange section 36 Free rim of 34 38 Pin 40 Openings for 38 42 Mounting holes 44 Collar 46 Stiffening beads 48 Stiffening beads 50 Stiffening beads 52 Filler piece 54 Cylindrical section contour 54 of 52 56 flat area of ​​52 58 areas of 50 60 ridge

Claims

1. A bevel gear differential comprising a housing (10) for receiving a gear unit of a bevel gear differential, said housing (10) having a first housing part (12), which is made of a metal sheet, and a second housing part (14) which is made of a metal sheet, wherein at least one pin (38) projects from the first housing part (12), is formed in one piece with the first housing part (12) and extends through a corresponding opening (40) which is formed in the second housing part (14); and wherein the housing (10) is surrounded by a drive gear wheel (31) and the first housing part (12) receives a differential bolt (29), characterized in that a free end of the pin (38) that projects beyond the second housing part (14) is plastically deformed such that the first housing part (12) is fixedly connected to the second housing part (14); wherein either (i) the drive gear wheel (31) is rotationally fixedly connected to the housing (10) and the free ends of the differential bolt (29) extend into receiving bores (42) which are formed in a housing wall (20) of the first housing part (12), wherein the material of the housing wall (20) that surrounds the respective receiving bore (42) is plastically reshaped into a collar (44) which surrounds the respective free end of the differential bolt (29); or (ii) the free ends of the differential bolt (29) project from the first housing part (12), wherein the drive gear wheel (31) is connected to the free ends of the differential bolt (29).

2. A bevel gear differential according to claim 1, characterized in that the free end of the at least one pin (38) is plastically deformed by staking and / or by rolling.

3. A bevel gear differential according to claim 1 or 2, characterized in that the opening (40) of the second housing part (14), through which the pin (38) of the first housing part (12) extends, widens at least regionally towards the free end of the pin (38), with the widened region of the opening (40) being at least partly filled with material which is plastically deformed at the free end of the pin (38).

4. A bevel gear differential according to any one of the preceding claims, characterized in that the first housing part (12) is designed such that it is capable of receiving the gear components of a bevel gear differential, in particular of receiving a differential bolt (29), at least one differential bevel gear (30) rotatably supported thereon and two axle side shaft bevel gears (28, 29) meshing with the differential bevel gear (26).

5. A bevel gear differential according to any one of the preceding claims, characterized in that the first housing part (12) has a cup-like shape, which has a cup base (16) and a cup margin (18), for receiving the gear components of a bevel gear differential, with an opening (24) for guiding through a first axle shaft being formed in the cup base (16) and the at least one pin (38) projecting from the cup margin (18).

6. A bevel gear differential according to claim 5, characterized in that the first housing part (12) has a peripheral cup wall (20) between the cup base (16) and the cup margin (18), with the cup wall (20) having either a cylindrical shape or a planar surface (22), preferably two mutually oppositely disposed planar surfaces (22), as a contact surface for a planar rear side of a respective differential bevel gear (30).

7. A bevel gear differential according to claim 6, characterized in that a plurality of elongate stiffening beads (48) are formed in the peripheral cup wall (20) and preferably extend in the axial direction; and / or in that a plurality of stiffening beads (46) are formed in the at least one planar surface (22).

8. A bevel gear differential according to claim 5, characterized in that the first housing part (12) has a peripheral cup wall (20) between the cup base (16) and the cup margin (18), with the cup wall (20) having a planar surface (22), preferably two mutually oppositely disposed planar surfaces (22), as a contact surface for a planar rear side of a respective differential bevel gear (30), wherein no pins (38) are provided in the axial continuation of the at least one planar surface (22) at the cup margin (18).

9. A bevel gear differential according to any one of the preceding claims, characterized in that the second housing part (14) has a cover section (32) which forms an opening (25) for guiding through a second axle shaft and which, in the state connected to the first housing part (12), substantially closes the first housing part (12), in particular an opening (25) of the first housing part (12), said opening being formed by a cup margin (18) of the first housing part (12) which has a cup-like shape for receiving the gear components of a bevel gear differential.

10. A bevel gear differential according to claim 9, characterized in that the second housing part (12) further has a flange section (34) which is formed in one piece with the cover section (32) and surrounds the latter at the peripheral side, with provision in particular being made that the flange section (34) has a free margin (36) which extends in a plane that is disposed parallel to and between planes defined by the cup base (16) and the cup margin (18).

11. A bevel gear differential according to claim 10, characterized in that a plurality of stiffening beads (50) are formed in the flange section (34) and are preferably arranged spaced apart from one another at regular intervals in the peripheral direction.

12. A bevel gear differential comprising a housing (10) according to any one of the preceding claims, wherein the drive gear wheel (31) is connected to the free margin (18) of the flange section (34) of the second housing part (14).

13. A bevel gear differential according to claim 1, further comprising two differential bevel gears (30), which are rotatably supported at the differential bolt (29), and two axle side shaft bevel gears (26, 28) which mesh with the differential bevel gears (30), wherein the bevel gear differential preferably has filling pieces (52) which are arranged between the differential bevel gears (30) and an inner side of the first housing part (12) to effect a form-fitting adaptation of contact surfaces of the differential bevel gears (30) to the inner side of the first housing part (12).