CN220700818U - Half-shaft sleeve, axle housing and half-shaft sleeve-axle housing assembly for motor vehicle - Google Patents

Half-shaft sleeve, axle housing and half-shaft sleeve-axle housing assembly for motor vehicle Download PDF

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Publication number
CN220700818U
CN220700818U CN202321897746.8U CN202321897746U CN220700818U CN 220700818 U CN220700818 U CN 220700818U CN 202321897746 U CN202321897746 U CN 202321897746U CN 220700818 U CN220700818 U CN 220700818U
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China
Prior art keywords
axle housing
sleeve
axle
inner diameter
shaft sleeve
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CN202321897746.8U
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Chinese (zh)
Inventor
杨昆
李玉海
张治国
邹凤新
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Caterpillar Qingzhou Ltd
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Caterpillar Qingzhou Ltd
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Priority to CN202321897746.8U priority Critical patent/CN220700818U/en
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Publication of CN220700818U publication Critical patent/CN220700818U/en
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Abstract

The utility model relates to a half-shaft sleeve (1), an axle housing (2) and a half-shaft sleeve-axle housing assembly (100) for a motor vehicle. The axle sleeve (1) is connected with the axle housing (2) along the axial press fit of the axle sleeve (1), the surface of the axle sleeve (1) matched with the axle housing (2) is provided with at least one sleeve diameter change part (10), and/or the surface of the axle housing (2) matched with the axle sleeve (1) is provided with at least one axle housing diameter change part (20), so that at least one gap (3) is formed between the matched surfaces of the axle sleeve (1) and the axle housing (2) and at least two axial seam allowance are formed between the axle sleeve (1) and the axle housing (2). By means of the at least two axial spigots, the axial matching length of the half-shaft sleeve (1) and the axle housing (2) is longer, the integral connection rigidity between the half-shaft sleeve (1) and the axle housing (2) is improved, and the possibility of oil leakage is effectively reduced.

Description

Half-shaft sleeve, axle housing and half-shaft sleeve-axle housing assembly for motor vehicle
Technical Field
The utility model relates to the technical field of motor vehicles, in particular to connection of a half-shaft sleeve and an axle housing.
Background
In a motor vehicle, a half shaft sleeve and an axle housing are connected to each other so as to accommodate and support a half shaft, a differential, and the like, the half shaft transmitting power from the differential to wheels to drive the motor vehicle. For a heavy-duty motor vehicle, especially a loader, when the motor vehicle works, the axle housing is heavy in load, especially the joint of the axle housing sleeve and the axle housing is easy to have insufficient rigidity, and excessive elastic deformation is generated, so that a series of problems of oil leakage of the matching surface, breakage of the axle housing sleeve and the like occur.
Thus, there is a need to improve the rigidity and secure attachment of the axle housing to the axle housing.
Disclosure of Invention
The present utility model aims to solve at least one aspect of the above-mentioned problems occurring in the prior art.
According to a first aspect of the present utility model, there is provided a half-shaft bushing for a motor vehicle, characterized in that the half-shaft bushing is intended for press-fit connection with an axle housing in the axial direction of the half-shaft bushing, the surface of the half-shaft bushing which cooperates with the axle housing having at least one bushing diameter variation so as to form at least one gap between the mating surfaces of the half-shaft bushing and the axle housing, thereby forming at least two axial sockets between the half-shaft bushing and the axle housing.
According to a preferred embodiment of the utility model, the axle sleeve comprises a sleeve collar provided with a plurality of sleeve holes in the circumferential direction, which axle sleeve is intended to be fixedly connected with the axle housing via bolts screwed into the sleeve holes.
According to a second aspect of the present utility model there is provided an axle housing for a motor vehicle, characterized in that the axle housing is intended for press-fit connection with a half-shaft sleeve in the axial direction of the half-shaft sleeve, the surface of the axle housing that mates with the half-shaft sleeve having at least one axle housing diameter variation so as to form at least one gap between the mating surfaces of the half-shaft sleeve and the axle housing, thereby forming at least two axial sockets between the axle housing and the half-shaft sleeve.
According to a preferred embodiment of the utility model, the axle housing comprises an axle housing flange provided with a plurality of axle housing bores in the circumferential direction, which axle housing is intended to be fixedly connected with the axle sleeve via bolts screwed into the axle housing bores.
According to a third aspect of the present utility model there is provided a half shaft sleeve-axle housing assembly for a motor vehicle, the half shaft sleeve-axle housing assembly comprising a half shaft sleeve and an axle housing, characterised in that the half shaft sleeve is in press fit connection with the axle housing in the axial direction of the half shaft sleeve, there being at least one gap between mating surfaces of the half shaft sleeve and the axle housing so as to form at least two axial spigots between the half shaft sleeve and the axle housing.
According to a preferred embodiment of the utility model, the surface of the axle housing that cooperates with the axle housing has at least one housing diameter variation so as to form the at least one gap.
According to a preferred embodiment of the utility model, the surface of the axle housing that cooperates with the axle sleeve has at least one axle housing diameter variation so as to form the at least one gap.
According to a preferred embodiment of the present utility model, the axle housing is inserted into the interior cavity of the axle housing; at a location where the axle housing and the axle housing cooperate, the axle housing has a first outer diameter portion and a second outer diameter portion adjacent to each other, the first outer diameter portion extending to an end face of the axle housing; the outer diameter of the first outer diameter part is smaller than that of the second outer diameter part; the axle housing is provided with a first inner diameter part, a second inner diameter part and a third inner diameter part which are adjacent in sequence; the inner diameter of the second inner diameter part is larger than that of the first inner diameter part, and the inner diameter of the third inner diameter part is larger than that of the first inner diameter part; the first outer diameter portion cooperates with the first inner diameter portion to form a first axial spigot, the first outer diameter portion cooperates with the second inner diameter portion to form the gap, and the second outer diameter portion cooperates with the third inner diameter portion to form a second axial spigot. In this preferred embodiment, the first and third inner diameter portions are sized in diameter to facilitate smooth insertion of the axle housing, simplify manufacture of the axle housing, and form a secure axial spigot.
According to a preferred embodiment of the present utility model, the inner diameter of the third inner diameter portion is smaller than the inner diameter of the second inner diameter portion.
According to a preferred embodiment of the present utility model, the axle sleeve includes a sleeve collar provided with a plurality of sleeve holes in a circumferential direction, the axle housing includes an axle housing flange provided with a plurality of axle housing holes in a circumferential direction, and the axle sleeve is fixedly connected with the axle housing via bolts screwed into the sleeve holes and the axle housing holes.
Compared with the connection scheme of the axle sleeve and the axle housing in the prior art, the utility model provides at least two axial rabbets, the axial fit length of the axle sleeve and the axle housing is longer, the integral connection rigidity between the axle sleeve and the axle housing is improved, and the possibility of oil leakage faults caused by gaps on the fit surfaces between the axle sleeve and the axle housing is effectively reduced. Moreover, by providing a gap on the mating surface between the axle sleeve and the axle housing, the requirements for machining accuracy of the mating surface of the axle sleeve and/or the axle housing are reduced and assembly is facilitated. In addition, the half-shaft sleeve and the axle housing are connected by the bolt group, so that firm axial and circumferential fixation between the half-shaft sleeve and the axle housing is ensured.
Drawings
The utility model is described in detail below via exemplary embodiments with reference to the attached drawing figures, wherein:
fig. 1 shows a cross-sectional view of the connection between the axle sleeve and the axle housing in accordance with a first embodiment of the present utility model.
Fig. 2 shows a cross-sectional view of the connection between the axle sleeve and the axle housing in accordance with a second embodiment of the present utility model.
Fig. 3 shows a cross-sectional view of the connection between the axle sleeve and the axle housing in accordance with a third embodiment of the present utility model.
The figures are merely schematic and are not necessarily drawn to scale. They show only those parts which are necessary for elucidation of the utility model, while other parts may be omitted or merely mentioned briefly. The utility model may include other components or portions in addition to those shown in the figures.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model to those skilled in the art. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. Furthermore, it should be understood that the utility model is not limited to specific described embodiments. Rather, the utility model can be considered to be implemented with any combination of the following features and elements, whether or not they relate to different embodiments. Thus, the following features, embodiments, and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly set out in a claim.
Fig. 1 to 3 show a half-shaft sleeve-axle housing assembly 100 according to an embodiment of the present utility model, the half-shaft sleeve-axle housing assembly 100 including a half-shaft sleeve 1 and an axle housing 2. Only the connection between the axle sleeve 1 and the axle housing 2 is shown in detail in fig. 1 to 3, but the other parts of the axle sleeve 1 and the axle housing 2 are not shown. The axle housing 1 is inserted into the inner cavity of the axle housing 2 and is connected with the axle housing 2 along the axial direction of the axle housing 1 in a press fit manner. Alternatively, the axle housing 1 is fitted over the outside (not shown) of the axle housing 2 and is press-fitted with the axle housing 2 in the axial direction of the axle housing 1.
As shown in fig. 1 to 3, a gap 3 exists between mating surfaces of the axle sleeve 1 and the axle housing 2, thereby forming a first axial spigot 4 and a second axial spigot 5 between the axle sleeve 1 and the axle housing 2. One gap 3 is shown in fig. 1 to 3. However, it should be understood that two or more gaps 3 may be provided to form more axial spigots. One gap 3 is preferable in view of the fitting effect and the process simplicity requirements.
In order to form the gap 3, a sleeve diameter varying portion 10 (fig. 1) may be provided on the surface of the axle housing 1 that mates with the axle housing 2, or an axle housing diameter varying portion 20 (fig. 2) may be provided on the surface of the axle housing 2 that mates with the axle housing 1, or both the sleeve diameter varying portion 10 and the axle housing diameter varying portion 20 may be provided at the respective positions of the axle housing 1 and the axle housing 2, respectively (fig. 3).
As shown in fig. 1 to 3, in the embodiment in which the axle sleeve 1 is inserted into the inner cavity of the axle housing 2, the sleeve diameter varying portion 10 may be obtained by reducing the outer diameter of the axle sleeve 1, and the axle housing diameter varying portion 20 may be obtained by increasing the inner diameter of the axle housing 2.
As shown in fig. 1, the side sleeve 1 has a first outer diameter portion 13 and a second outer diameter portion 14 adjacent to each other at a portion that mates with the axle housing 2. The first outer diameter portion 13 has a smaller outer diameter relative to the second outer diameter portion 14, thereby forming a groove in the half shaft sleeve 1. Here, the first outer diameter portion 13 forms the above-described sleeve diameter changing portion 10.
As shown in fig. 2, the axle housing 2 has a first inner diameter portion 23 and a second inner diameter portion 24 adjacent to each other at a portion that mates with the side sleeve 1. The second inner diameter portion 24 has a larger inner diameter than the first inner diameter portion 23, thereby forming a groove on the axle housing 2. Here, the second inner diameter portion 24 forms the above-described axle housing diameter varying portion 20.
As shown in fig. 3, the side sleeve 1 has a first outer diameter portion 13 and a second outer diameter portion 14 adjacent to each other at a portion to be fitted with the axle housing 2. The first outer diameter portion 13 is closer to the end of the side sleeve 1 and has a smaller outer diameter than the second outer diameter portion 14. Here, the first outer diameter portion 13 forms the above-described sleeve diameter changing portion 10. Advantageously, the first outer diameter portion 13 extends all the way to the end face of the axle sleeve 1, thereby facilitating smooth insertion of the axle sleeve 1 into the axle housing 2 and simplifying the machining of the axle sleeve 1. It should be appreciated that the axle sleeve 1 may also include a third outer diameter (not shown) adjacent the first outer diameter 13, i.e., at the end of the axle sleeve 1. The outer diameter of the third outer diameter portion is preferably larger than the outer diameter of the first outer diameter portion 13 and smaller than the outer diameter of the second outer diameter portion 14.
As shown in fig. 3, the axle housing 2 has a first inner diameter portion 23, a second inner diameter portion 24, and a third inner diameter portion 25 that are adjacent in this order at a portion that mates with the side sleeve 1. The second inner diameter portion 24 has an inner diameter larger than that of the first inner diameter portion 23. The first inner diameter portion 23 of the axle housing 2 mates with the first outer diameter portion 13 of the axle sleeve 1 to form the first axial spigot 4. The second inner diameter portion 24 of the axle housing 2 mates with the first outer diameter portion 13 of the axle sleeve 1 to form the gap 3. The third inner diameter portion 25 of the axle housing 2 mates with the second outer diameter portion 14 of the axle sleeve 1 to form the second axial spigot 5. Here, the second inner diameter portion 24 forms the above-described axle housing diameter varying portion 20. Advantageously, the inner diameter of the third inner diameter portion 25 is smaller than the inner diameter of the second inner diameter portion 24 and larger than the inner diameter of the first inner diameter portion 23, thereby facilitating the smooth insertion of the axle housing 1 into the axle housing 2 and forming a secure second axial spigot 5. However, it is contemplated that the inner diameter of the third inner diameter portion 25 is equal to or greater than the inner diameter of the second inner diameter portion 24. In embodiments in which the axle housing 1 includes a third outer diameter, the first inner diameter 23 of the axle housing 2 mates with the third outer diameter of the axle housing 1 to form the first axial spigot 4.
In order to further enhance the fixed connection between the axle sleeve 1 and the axle housing 2, as shown in fig. 1 to 3, a sleeve flange 11 is provided on the axle sleeve 1, and the sleeve flange 11 is provided with a plurality of sleeve holes 12 in the circumferential direction. Accordingly, an axle housing flange 21 is provided on the axle housing 2, and the axle housing flange 21 is provided with a plurality of axle housing holes 22 in the circumferential direction. The sleeve flange 11 and the axle housing flange 21 abut against each other, and the bolts 6 are screwed into the sleeve holes 12 and the axle housing holes 22 in turn and fix the half-shaft sleeve 1 and the axle housing 2 together by means of the nuts 7. Preferably, a washer 8 is also provided between the sleeve flange 11 and the nut 7 to more securely fix the axle sleeve 1 and the axle housing 2 together.
In the embodiment shown in fig. 1 to 3, both the sleeve flange 11 and the axle housing flange 21 are shown provided. However, it should be understood that only one of them, or neither of them, may be provided. Alternatively, the axle housing 1 and axle housing 2 are secured together by any other suitable known means, such as riveting, welding, or the like.
Compared with the connection scheme of the axle sleeve and the axle housing in the prior art, the utility model provides at least two axial rabbets, the axial fit length of the axle sleeve 1 and the axle housing 2 is longer, the integral connection rigidity between the axle sleeve 1 and the axle housing 2 is improved, and the possibility of oil leakage faults caused by gaps on the fit surfaces between the axle sleeve 1 and the axle housing 2 is effectively reduced. Furthermore, by providing a gap on the mating surface between the axle sleeve 1 and the axle housing 2, the requirements for machining accuracy of the mating surface of the axle sleeve 1 and/or the axle housing 2 are also reduced and assembly is facilitated. In addition, the coupling of the half-shaft sleeve 1 with the axle housing 2 by means of the bolt pairs ensures a firm axial and circumferential fixation between the half-shaft sleeve 1 and the axle housing 2.
While the utility model has been described in terms of preferred embodiments, the utility model is not so limited. Any person skilled in the art should not depart from the spirit and scope of the present utility model and should therefore fall within the scope of the utility model as defined by the appended claims.

Claims (10)

1. A half-shaft sleeve (1) for a motor vehicle, characterized in that the half-shaft sleeve (1) is intended to be press-fit connected with an axle housing (2) in the axial direction of the half-shaft sleeve (1), the surface of the half-shaft sleeve (1) which cooperates with the axle housing (2) having at least one sleeve diameter variation (10) so as to form at least one gap (3) between the mating surfaces of the half-shaft sleeve (1) and the axle housing (2), thereby forming at least two axial spigots between the half-shaft sleeve (1) and the axle housing (2).
2. The axle sleeve (1) according to claim 1, characterized in that the axle sleeve (1) comprises a sleeve flange (11), the sleeve flange (11) being provided with a plurality of sleeve holes (12) in the circumferential direction, the axle sleeve (1) being intended to be fixedly connected with the axle housing (2) via bolts (6) screwed into the sleeve holes (12).
3. Axle housing (2) for a motor vehicle, characterized in that the axle housing (2) is intended to be press-fit connected with a half-shaft sleeve (1) in the axial direction of the half-shaft sleeve (1), the surface of the axle housing (2) which cooperates with the half-shaft sleeve (1) having at least one axle housing diameter variation (20) so as to form at least one gap (3) between the mating surfaces of the half-shaft sleeve (1) and the axle housing (2), thereby forming at least two axial spigots between the axle housing (2) and the half-shaft sleeve (1).
4. -axle housing (2) according to claim 3, characterized in that the axle housing (2) comprises an axle housing flange (21), which axle housing flange (21) is provided with a plurality of axle housing holes (22) in the circumferential direction, which axle housing (2) is intended to be fixedly connected with the axle sleeve (1) via bolts (6) screwed into the axle housing holes (22).
5. A half-shaft sleeve-axle housing assembly (100) for a motor vehicle, the half-shaft sleeve-axle housing assembly (100) comprising a half-shaft sleeve (1) and an axle housing (2), characterized in that the half-shaft sleeve (1) is in press-fit connection with the axle housing (2) along the axial direction of the half-shaft sleeve (1), there being at least one gap (3) between the mating surfaces of the half-shaft sleeve (1) and the axle housing (2) so as to form at least two axial spigots between the half-shaft sleeve (1) and the axle housing (2).
6. The axle sleeve-axle housing assembly (100) of claim 5, wherein the surface of the axle sleeve (1) that mates with the axle housing (2) has at least one sleeve diameter variation (10) to form the at least one gap (3).
7. The axle sleeve-axle housing assembly (100) of claim 5, wherein the surface of the axle housing (2) that mates with the axle sleeve (1) has at least one axle housing diameter variation (20) to form the at least one gap (3).
8. The axle sleeve-axle housing assembly (100) of claim 5, wherein said axle sleeve (1) is inserted into an interior cavity of said axle housing (2); at a portion where the axle housing (1) is mated with the axle housing (2), the axle housing (1) has a first outer diameter portion (13) and a second outer diameter portion (14) adjacent to each other, the first outer diameter portion (13) extending to an end face of the axle housing (1); the outer diameter of the first outer diameter part (13) is smaller than the outer diameter of the second outer diameter part (14); the axle housing (2) is provided with a first inner diameter part (23), a second inner diameter part (24) and a third inner diameter part (25) which are adjacent in sequence; the inner diameter of the second inner diameter part (24) is larger than the inner diameter of the first inner diameter part (23), and the inner diameter of the third inner diameter part (25) is larger than the inner diameter of the first inner diameter part (23); the first outer diameter portion (13) cooperates with the first inner diameter portion (23) to form a first axial spigot (4), the first outer diameter portion (13) cooperates with the second inner diameter portion (24) to form the gap (3), and the second outer diameter portion (14) cooperates with the third inner diameter portion (25) to form a second axial spigot (5).
9. The axle sleeve-axle housing assembly (100) of claim 8, wherein the third inner diameter portion (25) has an inner diameter that is smaller than the inner diameter of the second inner diameter portion (24).
10. The axle sleeve-axle housing assembly (100) of any one of claims 5-9, wherein the axle sleeve (1) comprises a sleeve flange (11), the sleeve flange (11) is circumferentially provided with a plurality of sleeve holes (12), the axle housing (2) comprises an axle housing flange (21), the axle housing flange (21) is circumferentially provided with a plurality of axle housing holes (22), and the axle sleeve (1) is fixedly connected with the axle housing (2) via bolts (6) screwed into the sleeve holes (12) and the axle housing holes (22).
CN202321897746.8U 2023-07-19 2023-07-19 Half-shaft sleeve, axle housing and half-shaft sleeve-axle housing assembly for motor vehicle Active CN220700818U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321897746.8U CN220700818U (en) 2023-07-19 2023-07-19 Half-shaft sleeve, axle housing and half-shaft sleeve-axle housing assembly for motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321897746.8U CN220700818U (en) 2023-07-19 2023-07-19 Half-shaft sleeve, axle housing and half-shaft sleeve-axle housing assembly for motor vehicle

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CN220700818U true CN220700818U (en) 2024-04-02

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