Inter-axle differential and through-axle reducer assembly

Abstract

This application relates to an inter-shaft differential. The driving gear assembly includes a driving gear shaft and a driving gear sleeved on the driving gear shaft along a first direction. The driven gear assembly includes a driven gear shaft coaxially arranged with the driving gear shaft and a driven gear disposed on the driven gear shaft facing the driving gear. The gear sleeve assembly includes a fixed gear sleeve and a sliding gear sleeve disposed in a first receiving cavity. The fixed gear sleeve is connected to the driving gear shaft along the first direction, and the sliding gear sleeve is slidably connected to the driven gear shaft along the first direction. By placing the fixed gear sleeve and sliding gear sleeve in the inter-shaft differential within the first receiving cavity formed by the driving gear shaft and the driven gear shaft, this application rationally utilizes the space within the driven gear shaft. The fixed gear sleeve and sliding gear sleeve no longer occupy separate axial space, thereby reducing the axial dimension of the through-axle reducer assembly, making the overall structure of the device more compact, and also providing usable arrangement space for upgrading and modifying the lubrication structure.

Description

Technical Field

[0001] This application relates to the field of through-axle reducer assembly technology, and in particular to inter-shaft differentials. Background Technology

[0002] The inter-axle differential is a key component in the through-axle reducer assembly. It is mainly used to distribute the engine power to each drive wheel in sequence through the clutch, transmission and drive shaft, so that each drive wheel can generate different speeds when needed.

[0003] In related technologies, the structural design of the inter-shaft differential is unreasonable, resulting in a large axial dimension of the through-bridge reducer assembly. Summary of the Invention

[0004] Therefore, it is necessary to provide an inter-shaft differential and a through-bridge reducer assembly to address the issue of the large axial dimension of the through-bridge reducer assembly.

[0005] An inter-shaft differential includes a driving gear assembly, a driven gear assembly, and a gear sleeve assembly. The driving gear assembly includes a driving gear shaft and a driving gear sleeved on the driving gear shaft along a first direction. The driven gear assembly includes a driven gear shaft coaxially arranged with the driving gear shaft, with at least a portion of the driving gear shaft passing through the driven gear shaft to form a first receiving cavity, and a driven gear disposed on the driven gear shaft facing the driving gear. The gear sleeve assembly includes a fixed gear sleeve and a sliding gear sleeve disposed in the first receiving cavity. The fixed gear sleeve is connected to the driving gear shaft along the first direction, and the sliding gear sleeve is slidably connected to the driven gear shaft along the first direction. The first direction is a direction parallel to the axis of the driving gear shaft. The sliding gear sleeve has a first position and a second position. When the sliding gear sleeve is in the first position, the sliding gear sleeve and the fixed gear sleeve are connected to each other. When the sliding gear sleeve is in the second position, the sliding gear sleeve and the fixed gear sleeve are separated from each other. The fixed gear sleeve and the sliding gear sleeve no longer occupy separate axial space, thereby reducing the axial dimension of the through-axle reducer assembly.

[0006] In one embodiment, the fixed toothed sleeve has a first end face tooth on the side facing the sliding toothed sleeve, and the sliding toothed sleeve has a second end face tooth on the side facing the fixed toothed sleeve. When the sliding toothed sleeve is in the first position, the first end face tooth and the second end face tooth are connected, so that the fixed toothed sleeve and the sliding toothed sleeve are stably connected.

[0007] In one embodiment, the drive gear shaft includes a first shaft segment and a second shaft segment connected sequentially along a first direction, and the radial dimension of the first shaft segment is greater than the radial dimension of the second shaft segment; the drive gear is sleeved on the first shaft segment along the first direction, and the fixed gear sleeve is sleeved on the second shaft segment along the first direction, so that the first shaft segment can bear the larger torque applied by the drive gear.

[0008] In one embodiment, the drive gear shaft further includes a third shaft segment located between the first shaft segment and the second shaft segment; the inter-shaft differential also includes a connecting bracket sleeved on the third shaft segment along a first direction, and a plurality of planetary gears disposed on the connecting bracket, wherein each planetary gear is meshed with the drive gear and the driven gear respectively, the drive gear and the driven gear are indirectly connected through the planetary gears, and differential transmission is performed according to the transmission ratio.

[0009] In one embodiment, the inter-shaft differential further includes a baffle connected to the second shaft segment, and the baffle abuts against the end face of the fixed gear sleeve in a first direction to restrict the movement of the fixed gear sleeve toward the side closer to the sliding gear sleeve in the first direction.

[0010] In one embodiment, the inter-shaft differential further includes a drive member for driving the sliding sleeve to move along a first direction; the drive member includes a shift fork and a shift block, the shift fork passing sequentially through the driven gear shaft along a second direction and through the sliding sleeve; the shift fork includes a first portion passing through the sliding sleeve; the shift block passes through the first portion along a third direction, and the opposite sides of the shift block along the third direction abut against the sliding sleeve respectively; wherein, the second direction is perpendicular to the first direction, and the third direction is parallel to the first direction; or the first direction, the second direction, and the third direction are all perpendicular to each other. The shift fork moves the shift block, causing the shift block to drive the sliding sleeve to move along the first direction toward the fixed sleeve, until the second end face teeth of the sliding sleeve connect with the first end face teeth of the fixed sleeve, and the inter-shaft differential locks.

[0011] In one embodiment, the sliding sleeve includes a positioning groove through which the first part passes; the groove wall of the positioning groove includes a first groove wall and a second groove wall disposed opposite to each other along a third direction, and the pusher blocks abut against the first groove wall and the second groove wall respectively on opposite sides along the third direction, thereby smoothly pushing the sliding sleeve to move along the first direction.

[0012] In one embodiment, the shift fork includes a first shift fork and a second shift fork disposed opposite to each other along a first direction. The first shift fork and the second shift fork define a receiving groove that communicates with a positioning groove. The shift block is installed in the receiving groove so that the opposite sides of the shift block along a third direction can respectively abut against the first groove wall and the second groove wall. The shift fork adopts a split assembly structure, which facilitates the assembly with the shift block.

[0013] In one embodiment, the driven gear shaft includes an inner side and an outer side of the driven gear shaft disposed opposite to each other; the inter-shaft differential also includes a housing, a first bearing, and a second bearing. The first bearing is disposed between the housing and the outer side of the driven gear shaft and is sleeved on the outer side of the driven gear shaft along a first direction. The second bearing is disposed between the fixed gear sleeve and the inner side of the driven gear shaft and is sleeved on the fixed gear sleeve along the first direction, thereby making the rotational movement between the fixed gear sleeve, the driven gear shaft, and the housing smoother.

[0014] According to another aspect of this application, a through-bridge reducer assembly is provided, including the aforementioned inter-shaft differential.

[0015] In the technical solution of this application, the inter-shaft differential includes a driving gear assembly, a driven gear assembly, and a gear sleeve assembly. The driving gear assembly includes a driving gear shaft and a driving gear sleeved on the driving gear shaft along a first direction. The driven gear assembly includes a driven gear shaft coaxially arranged with the driving gear shaft, with at least a portion of the driving gear shaft passing through the driven gear shaft to form a first receiving cavity, and a driven gear disposed on the driven gear shaft facing the driving gear. The gear sleeve assembly includes a fixed gear sleeve and a sliding gear sleeve disposed in the first receiving cavity. The fixed gear sleeve is connected to the driving gear shaft along the first direction, and the sliding gear sleeve is slidably connected to the driven gear shaft along the first direction. By arranging the fixed gear sleeve and sliding gear sleeve in the inter-shaft differential in the first receiving cavity formed by the driving gear shaft and the driven gear shaft, this application makes reasonable use of the space within the driven gear shaft. The fixed gear sleeve and sliding gear sleeve no longer occupy axial space separately, thereby reducing the axial dimension of the through-bridge reducer assembly, making the overall structure of the device more compact, and also providing space for upgrading and modifying the lubrication structure. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the through-bridge reducer assembly, showing the application location of the inter-shaft differential in an embodiment of this application.

[0017] Figure 2 This is a partial cross-sectional view of the through-bridge reducer assembly where the inter-shaft differential is applied according to an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the structure of a fixed toothed sleeve according to an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the structure of a sliding toothed sleeve according to an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the driven gear assembly according to an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the structure of a shift fork according to an embodiment of this application.

[0022] Figure label:

[0023] Inter-axle differential 1000;

[0024] Drive gear assembly 100; drive gear shaft 11; first shaft segment 111; second shaft segment 112; third shaft segment 113; drive gear 12;

[0025] Driven gear assembly 200; driven gear shaft 21; first receiving cavity 211; second receiving cavity 212; driven gear 22;

[0026] Gear sleeve assembly 300; fixed gear sleeve 31; first end face tooth 311; spline hole 312; sliding gear sleeve 32;

[0027] Second end face tooth 312; positioning groove 313;

[0028] 4. Connecting bracket; 5. Planetary gear; 6. Baffle plate;

[0029] Drive component 700; shift fork 71; first shift fork 711; second shift fork 712; receiving groove 713; shift block 72;

[0030] First bearing 8; Second bearing 9;

[0031] First direction F1; Second direction F2; Third direction F3. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] See also Figure 1 and Figure 2 , Figure 1 A cross-sectional view of a through-bridge reducer assembly showing the application position of an inter-shaft differential 1000 according to an embodiment of this application is shown. Figure 2 A partial cross-sectional view of the application location of the inter-shaft differential 1000 of an embodiment of this application is shown.

[0039] An embodiment of this application provides an inter-shaft differential 1000, including a driving gear assembly 100, a driven gear assembly 200, and a gear sleeve assembly 300. The driving gear assembly 100 includes a driving gear shaft 11 and a driving gear 12 sleeved on the driving gear shaft 11 along a first direction F1. The driven gear assembly 200 includes a driven gear shaft 21 coaxially disposed with the driving gear shaft 11, with at least a portion of the driving gear shaft 11 passing through the driven gear shaft 21 to form a first receiving cavity 211, and a driven gear 22 disposed on the side of the driven gear shaft 21 facing the driving gear 12. The sleeve assembly 300 includes a fixed toothed sleeve 31 and a sliding toothed sleeve 32 disposed in the first receiving cavity 211. The fixed toothed sleeve 31 is connected to the driving gear shaft 11 along a first direction F1, and the sliding toothed sleeve 32 is slidably connected to the driven gear shaft 21 along the first direction F1. The first direction F1 is parallel to the axis of the driving gear shaft 11. The sliding toothed sleeve 32 has a first position and a second position. When the sliding toothed sleeve 32 is in the first position, the sliding toothed sleeve 32 is connected to the fixed toothed sleeve 31. When the sliding toothed sleeve 32 is in the second position, the sliding toothed sleeve 32 is separated from the fixed toothed sleeve 31.

[0040] Thus, since the sliding sleeve 32, driven gear 22 and driven gear shaft 21 are connected, and the fixed sleeve 31, driving gear 12 and driving gear shaft 11 are connected, when the sliding sleeve 32 is in the first position and the sliding sleeve 32 and the fixed sleeve 31 are connected to each other, it is equivalent to the driving gear 12 and the driven gear 22 being connected. At this time, the differential lock is engaged, that is, the driving gear 12 and the driven gear 22 rotate synchronously without differential speed. When the sliding sleeve 32 is in the second position and the sliding sleeve 32 and the fixed sleeve 31 are separated from each other, the driving gear 12 and the driven gear 22 transmit power according to the transmission ratio. It is understood that by setting the fixed gear sleeve 31 and the sliding gear sleeve 32 in the inter-shaft differential 1000 in the first receiving cavity 211 formed by the driving gear shaft 11 and the driven gear shaft 21, this application makes reasonable use of the space in the driven gear shaft 21. The fixed gear sleeve 31 and the sliding gear sleeve 32 no longer occupy axial space separately, thereby reducing the axial dimension of the through bridge reducer assembly, making the overall structure of the device more compact, and also providing usable arrangement space for the upgrade and modification of the lubrication structure.

[0041] See also Figure 3 , Figure 4 and Figure 5 , Figure 3 A schematic diagram of the structure of the fixed toothed sleeve 31 according to an embodiment of this application is shown; Figure 4 A schematic diagram of the structure of a sliding toothed sleeve 32 according to an embodiment of this application is shown; Figure 5 A schematic diagram of the driven gear assembly 200 according to an embodiment of this application is shown.

[0042] Specifically, the fixed gear sleeve 31 has a first end face tooth 311 on the side facing the sliding gear sleeve 32, and the sliding gear sleeve 32 has a second end face tooth 312 on the side facing the fixed gear sleeve 31. When the sliding gear sleeve 32 is in the first position, the first end face tooth 311 is connected to the second end face tooth 312. That is, the connection between the first end face tooth 311 and the second end face tooth 312 is used to achieve a stable connection between the fixed gear sleeve 31 and the sliding gear sleeve 32, thereby realizing the synchronous rotation of the driving gear 12 and the driven gear 22.

[0043] In addition, the fixed gear sleeve 31 is provided with a spline hole 312, which is connected to the second shaft segment 112 via a spline, thereby ensuring the connection strength between the fixed gear sleeve and the second shaft segment 112.

[0044] In some embodiments, the driving gear shaft 11 includes a first shaft segment 111 and a second shaft segment 112 connected sequentially along a first direction F1, and the radial dimension of the first shaft segment 111 is larger than the radial dimension of the second shaft segment 112; the driving gear 12 is sleeved on the first shaft segment 111 along the first direction F1, and the fixed gear sleeve 31 is sleeved on the second shaft segment 112 along the first direction F1. It is understood that since the load on the driving gear 12 is greater than the load on the driven gear 22, the radial dimension of the first shaft segment 111 is larger than the radial dimension of the second shaft segment 112, so that the first shaft segment 111 can bear the larger torque applied by the driving gear 12.

[0045] Furthermore, the drive gear shaft 11 also includes a third shaft section 113 located between the first shaft section 111 and the second shaft section 112. The inter-shaft differential 1000 also includes a connecting bracket 4 sleeved on the third shaft section 113 along the first direction F1, and a plurality of planetary gears 5 disposed on the connecting bracket 4, with each planetary gear 5 meshing with the drive gear 12 and the driven gear 22 respectively. Thus, when the fixed gear sleeve 31 and the sliding gear sleeve 32 are separated from each other, the drive gear 12 and the driven gear 22 can be indirectly connected through the planetary gears 5, and differential transmission can be performed according to the transmission ratio.

[0046] Optionally, the connecting bracket 4 is a cross shaft, and the number of planetary gears 5 is four, which are respectively connected to the four ends of the cross shaft.

[0047] As one implementation method, specifically as follows: Figure 1 In the illustrated embodiment, the inter-shaft differential 1000 further includes a baffle 6 connected to the second shaft segment 112, and the baffle 6 abuts against the end face of the fixed gear sleeve 31 along the first direction F1 to restrict the movement of the fixed gear sleeve 31 towards the side closer to the sliding gear sleeve 32 along the first direction F1. The baffle 6 can be bolted to the second shaft segment 112 along the first direction F1 to prevent the fixed gear sleeve 31 from axially slipping.

[0048] Figure 6A schematic diagram of the structure of a shift fork 71 according to an embodiment of this application is shown.

[0049] In some embodiments, the inter-shaft differential 1000 further includes a drive member 700 for driving the sliding sleeve 32 to move along a first direction F1. The drive member 700 includes a shift fork 71 and a shift block 72. The shift fork 71 passes through the driven gear shaft 21 along a second direction F2 and is disposed in the sliding sleeve 32. The shift fork 71 includes a first portion that passes through the sliding sleeve 32. The shift block 72 passes through the first portion along a third direction F3, and the opposite sides of the shift block 72 along the third direction F3 respectively abut against the sliding sleeve 32. The second direction F2 is perpendicular to the first direction F1, and the third direction F3 is parallel to the first direction F1; or the first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other. Thus, when the shift fork 71 moves the shift block 72, the shift block 72 can drive the sliding tooth sleeve 32 to move towards the fixed tooth sleeve 31 along the first direction F1 until the second end face tooth 312 of the sliding tooth sleeve 32 connects with the first end face tooth 311 of the fixed tooth sleeve 31, thereby locking the inter-shaft differential 1000.

[0050] Specifically, the sliding toothed sleeve 32 includes a positioning groove 313 for the first part to pass through; the groove wall of the positioning groove 313 includes a first groove wall and a second groove wall arranged opposite each other along the third direction F3, and the toggle block 72 abuts against the first groove wall and the second groove wall on opposite sides along the third direction F3 respectively. In this way, the toggle block 72 can smoothly push the sliding toothed sleeve 32 to move along the first direction F1.

[0051] In addition, the driven gear shaft 21 also includes a second receiving cavity 212 located on the side of the shift fork 71 opposite to the first receiving cavity 211. The second receiving cavity 212 is used to install other components such as the through shaft. In this way, the space inside the driven gear shaft 21 is further utilized effectively, making the overall structure of the device more compact.

[0052] In some embodiments, the shift fork 71 includes a first shift fork 711 and a second shift fork 712 disposed opposite to each other along a first direction F1. The first shift fork 711 and the second shift fork 712 define a receiving groove 713 communicating with the positioning groove 313. The shift block 72 is installed in the receiving groove 713 so that the opposite sides of the shift block 72 along the third direction F3 can respectively abut against the first groove wall and the second groove wall. In this way, the shift fork 71 adopts a split assembly structure, which facilitates the assembly with the shift block 72.

[0053] Furthermore, the push block 72 can also adopt a split structure, which further facilitates the assembly process.

[0054] In some embodiments, the driven gear 22 shaft 21 includes an inner side and an outer side of the driven gear shaft 21 disposed opposite to each other. The inter-shaft differential 1000 further includes a housing, a first bearing 8, and a second bearing 9. The first bearing 8 is disposed between the housing and the outer side of the driven gear shaft 21 and is sleeved on the outer side of the driven gear shaft 21 along a first direction F1. The second bearing 9 is disposed between the fixed gear sleeve 31 and the inner side of the driven gear 22 shaft 21 and is sleeved on the fixed gear sleeve 31 along the first direction F1. Thus, by providing the first bearing 8 and the second bearing 9, the rotational movement between the fixed gear sleeve 31, the driven gear shaft 21, and the housing is made smoother.

[0055] This application rationally utilizes the space within the driven gear shaft 21 by placing the fixed gear sleeve 31 and the sliding gear sleeve 32 in the inter-shaft differential 1000 within the first receiving cavity 211 formed by the driving gear shaft 11 and the driven gear shaft 21. The fixed gear sleeve 31 and the sliding gear sleeve 32 no longer occupy axial space separately, thereby reducing the axial dimension of the through-bridge reducer assembly and making the overall structure of the device more compact. It also provides usable arrangement space for upgrading and modifying the lubrication structure.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An inter-shaft differential, characterized in that, The inter-shaft differential includes: A drive gear assembly includes a drive gear shaft and a drive gear sleeved on the drive gear shaft along a first direction; The driven gear assembly includes a driven gear shaft coaxially disposed with the driving gear shaft, wherein at least a portion of the driving gear shaft passes through the driven gear shaft to form a first receiving cavity, and a driven gear disposed on the side of the driven gear shaft facing the driving gear; and A gear sleeve assembly includes a fixed gear sleeve and a sliding gear sleeve disposed in the first receiving cavity. The fixed gear sleeve is connected to the driving gear shaft along the first direction, and the sliding gear sleeve is slidably connected to the driven gear shaft along the first direction. Wherein, the first direction is the axial direction parallel to the drive gear shaft; The sliding toothed sleeve has a first position and a second position. When the sliding toothed sleeve is in the first position, the sliding toothed sleeve and the fixed toothed sleeve are connected to each other. When the sliding toothed sleeve is in the second position, the sliding toothed sleeve and the fixed toothed sleeve are separated from each other. The fixed toothed sleeve has a first end face tooth on the side facing the sliding toothed sleeve, and the sliding toothed sleeve has a second end face tooth on the side facing the fixed toothed sleeve. When the sliding toothed sleeve is in the first position, the first end face tooth is connected to the second end face tooth. The drive gear shaft includes a first shaft segment and a second shaft segment connected sequentially along a first direction, and the radial dimension of the first shaft segment is greater than the radial dimension of the second shaft segment; The driving gear is sleeved on the first shaft segment along the first direction, and the fixed gear sleeve is sleeved on the second shaft segment along the first direction.

2. The inter-shaft differential according to claim 1, characterized in that, The drive gear shaft also includes a third shaft segment located between the first shaft segment and the second shaft segment; The inter-shaft differential also includes a connecting bracket sleeved on the third shaft section along the first direction, and a plurality of planetary gears disposed on the connecting bracket, wherein each planetary gear is respectively meshed with the driving gear and the driven gear.

3. The inter-shaft differential according to claim 1, characterized in that, The inter-shaft differential also includes a baffle connected to the second shaft segment, and the baffle abuts against the end face of the fixed gear sleeve along the first direction to restrict the movement of the fixed gear sleeve toward the side closer to the sliding gear sleeve along the first direction.

4. The inter-shaft differential according to claim 1, characterized in that, The inter-shaft differential also includes a drive element for driving the sliding gear sleeve to move along the first direction; The driving component includes: A shift fork, extending sequentially through the driven gear shaft along a second direction, and passing through the sliding gear sleeve; the shift fork includes a first portion passing through the sliding gear sleeve; and A lever is inserted through the first part along a third direction, and the lever abuts against the sliding tooth sleeve on opposite sides along the third direction. Wherein, the second direction is perpendicular to the first direction, and the third direction is parallel to the first direction; or the first direction, the second direction, and the third direction are perpendicular to each other.

5. The inter-shaft differential according to claim 4, characterized in that, The sliding toothed sleeve includes a positioning groove through which the first part passes; the groove wall includes a first groove wall and a second groove wall disposed opposite to each other along the third direction. The lever abuts against the first groove wall and the second groove wall on opposite sides along the third direction, respectively.

6. The inter-shaft differential according to claim 5, characterized in that, The shift fork includes a first shift fork and a second shift fork arranged opposite to each other along the first direction. The first shift fork and the second shift fork define a receiving groove that communicates with the positioning groove. The shift block is installed in the receiving groove so that the shift block can abut against the first groove wall and the second groove wall respectively on opposite sides along the third direction.

7. The inter-shaft differential according to claim 1, characterized in that, The driven gear shaft includes an inner side and an outer side of the driven gear shaft that are disposed opposite to each other; The inter-shaft differential also includes: case; A first bearing is disposed between the housing and the outer side of the driven gear shaft, and is sleeved on the outer side of the driven gear shaft along the first direction; The second bearing is disposed between the fixed gear sleeve and the inner side of the driven gear shaft, and is sleeved on the fixed gear sleeve along the first direction.

8. A through-bridge reducer assembly, characterized in that, The through-bridge reducer assembly includes the inter-shaft differential as described in any one of claims 1-7.

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