CN215410041U - Triple gear of inter-axle drive axle - Google Patents
Triple gear of inter-axle drive axle Download PDFInfo
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- CN215410041U CN215410041U CN202121761097.XU CN202121761097U CN215410041U CN 215410041 U CN215410041 U CN 215410041U CN 202121761097 U CN202121761097 U CN 202121761097U CN 215410041 U CN215410041 U CN 215410041U
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Abstract
The utility model relates to a triple gear of an inter-shaft drive axle. An inter-axle drive axle triple gear comprising: the meshing sleeve combination teeth and the bevel teeth are respectively arranged on the end faces of the two axial ends of the triple gear, the meshing sleeve combination teeth are used for being combined with the sliding meshing sleeve to realize differential locking, and the bevel teeth are used for being meshed with a planetary gear on a cross shaft of the inter-shaft differential mechanism; the front differential half shaft transmission gear is arranged on the peripheral surface of the triple gear and is used for outputting power to an inter-wheel differential of a front wheel; the end face of one end of the triple gear, which is provided with the bevel gear, is provided with a sinking groove, and the sinking groove is used for avoiding a differential shell which is positioned on the outer side of the planetary gear shaft on the interaxial differential; the bevel gear is arranged on the bottom wall of the sink groove. Through set up heavy groove on the triple gear, heavy groove can dodge and lie in on the interaxial differential mechanism shell that the planet gear axle is outside, is favorable to reducing the space of interaxial transaxle and occupies.
Description
Technical Field
The utility model relates to a triple gear of an inter-shaft drive axle.
Background
The differential is an important structure of a drive axle, is a mechanism which can enable left and right (or front and rear) driving wheels to rotate at different rotating speeds, and has the function of enabling the left and right wheels to roll at different rotating speeds when an automobile turns or runs on an uneven road surface, so as to ensure that the driving wheels on two sides do pure rolling motion. For trucks, a strong driving force is required to meet load requirements and different road conditions, a double drive axle is generally used, a four-wheel drive structure is adopted, the two drive axles are of a through structure, the power of an engine is transmitted to a middle axle and then transmitted to an inter-axle differential (also called an inter-axle differential) on the middle axle and a rear axle inter-wheel differential through an inter-axle differential on the middle axle, and the inter-axle differential and the rear axle inter-wheel differential distribute the power to corresponding wheels on the left side and the right side of the vehicle.
The conventional inter-axle differential is disclosed in chinese patent publication No. CN202264605U, and includes an input shaft for transmission connection with an engine, and the input shaft is provided with a sliding engagement sleeve, a triple gear, a cross shaft, and a side gear in order along an axial direction. The end face of one end of the triple gear is provided with meshing sleeve combination teeth, the end face of the other end of the triple gear is provided with bevel teeth, the peripheral surface of the triple gear is provided with front differential half-shaft transmission teeth, the meshing sleeve combination teeth are used for being combined with a sliding meshing sleeve to realize differential locking, the bevel teeth are used for being meshed with a planetary gear on a cross shaft, and the front differential half-shaft transmission teeth are used for outputting power to an inter-wheel differential of a front wheel.
The drive axle assembly occupies a large space in the chassis, and the space on the chassis for the arrangement of the drive axle assembly is limited, so that the structure of the drive axle needs to be continuously optimized to reduce the profile size.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a triple gear of an inter-shaft drive axle, which is beneficial to reducing the space occupation of the inter-shaft drive axle.
The utility model adopts the following technical scheme:
an inter-axle drive axle triple gear comprising:
the meshing sleeve combination teeth and the bevel teeth are respectively arranged on the end faces of the two axial ends of the triple gear, the meshing sleeve combination teeth are used for being combined with the sliding meshing sleeve to realize differential locking, and the bevel teeth are used for being meshed with a planetary gear on a cross shaft of the inter-shaft differential mechanism;
the front differential half shaft transmission gear is arranged on the peripheral surface of the triple gear and is used for outputting power to an inter-wheel differential of a front wheel;
the end face of one end of the triple gear, which is provided with the bevel gear, is provided with a sinking groove, and the sinking groove is used for avoiding a differential shell which is positioned on the outer side of the planetary gear shaft on the interaxial differential;
the bevel gear is arranged on the bottom wall of the sink groove.
Has the advantages that: by adopting the technical scheme, the sunk groove is formed in the triple gear, the sunk groove can avoid a differential case positioned on the inter-axle differential and positioned on the outer side of the planet gear shaft, so that the size of the inter-axle drive axle in the axial direction of the input shaft can be smaller, the space occupation of the inter-axle drive axle is reduced, and the arrangement space is saved.
As a preferred technical scheme: the bevel teeth are completely positioned in the sink groove.
Has the advantages that: by adopting the technical scheme, the occupied space can be reduced more.
As a preferred technical scheme: the side wall of the sink groove is an inclined side wall, so that the sink groove forms a flaring structure.
Has the advantages that: adopt above-mentioned technical scheme can dodge differential mechanism shell better on the basis of guaranteeing structural strength.
As a preferred technical scheme: the part between the tooth root of the meshing sleeve combination tooth and the tooth root of the front differential half-shaft transmission tooth on the end surface of the triple gear forms an inclined transition surface, so that the base part of the triple gear, on which the meshing sleeve combination tooth and the bevel tooth are arranged, and the outer edge part of the triple gear, on which the front differential half-shaft transmission tooth is arranged, are in an offset state along the axial direction.
Has the advantages that: by adopting the technical scheme, the overall weight of the triple gear is favorably reduced and the occupied space is reduced under the condition of meeting the transmission requirement.
As a preferred technical scheme: and an annular transition groove is arranged at the junction of the groove bottom wall and the groove side wall of the sinking groove.
Has the advantages that: by adopting the technical scheme, stress concentration is avoided, and the differential shell of the interaxial differential is better avoided.
As a preferred technical scheme: the cross section profile of the groove side wall of the annular transition groove is arc-shaped.
As a preferred technical scheme: the groove bottom wall of the sinking groove is provided with an annular avoiding groove, and one part of the large end of the bevel gear is cut off by the annular avoiding groove.
Has the advantages that: adopt above-mentioned technical scheme can adapt to the structure of differential case better, dodge the differential case better.
As a preferred technical scheme: the cross-sectional profile of the groove side wall of the annular avoidance groove is arc-shaped.
As a preferred technical scheme: the triple gear is a forged piece, and the meshing sleeve combination teeth, the bevel teeth and the front differential half shaft transmission teeth are formed by forging.
As a preferred technical scheme: the front differential half shaft transmission gear is a straight gear.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of a triple gear of an inter-axle drive axle according to the present invention in use;
FIG. 2 is a front cross-sectional view of the triple gear of FIG. 1;
FIG. 3 is a right side view of FIG. 2;
fig. 4 is a left side view of fig. 2.
The names of the components corresponding to the corresponding reference numerals in the drawings are: 10. an input shaft; 20. sliding the meshing sleeve; 30. a triple gear; 31. engaging sleeve engaging teeth; 32. conical teeth; 33. front differential half shaft transmission teeth; 34. sinking a groove; 35. a sloping transition surface; 36. a base portion; 37. an outer edge portion; 38. an annular transition groove; 39. an annular avoidance groove; 40. a differential case; 41. a cross shaft; 42. a planetary gear; 43. a half shaft gear; 50. an inter-wheel differential.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the triple gear of the inter-shaft drive axle of the present invention:
as shown in fig. 1, the triple gear 30 is adapted to be installed in an inter-axle drive axle including an input shaft 10, the input shaft 10 being adapted to be drivingly connected to an engine, and a sliding sleeve 20, the triple gear 30, a cross shaft 41, and a side gear 43 are provided thereon in this order in an axial direction. The end face of one end of the triple gear is provided with engaging sleeve combining teeth 31, the end face of the other end of the triple gear is provided with bevel teeth 32, and the outer peripheral surface of the triple gear is provided with front differential half shaft transmission teeth 33. The sleeve engaging teeth 31 are shown in fig. 2 and 4 for engaging with the sliding sleeve 20 to effect differential locking, the bevel teeth 32 are for engaging with the planetary gears 42 on the cross shafts 41, and the front differential side gear teeth 33 are spur gears for outputting power to the inter-wheel differential 50 of the front wheels. A differential case 40 is also provided on the inter-axle transaxle axially outward of the planetary gears 42.
Particularly, the triple gear 30 of the present invention is different from the prior art in that, as shown in fig. 2 and 3, a sunk groove 34 is provided on an end surface of one end of the triple gear 30, which is provided with a bevel gear 32, and the sunk groove 34 is used for avoiding a differential case 40 of an inter-axle differential and allowing a part of the differential case 40 to enter, so as to reduce the space occupation of the differential case 40, and further facilitate the reduction of the space occupation of the whole inter-axle drive axle. The bevel gear 32 is arranged on the bottom wall of the sink groove 34 and is completely positioned in the sink groove 34, and the tooth crest of the small end of the bevel gear is lower than the opening edge of the sink groove 34.
The tank side walls of the sink tank 34 are inclined side walls so that the sink tank 34 forms a flaring structure; the portion of the end face of the triple gear from the root of the sleeve engaging tooth 31 to the root of the front differential side drive tooth 33 forms an inclined transition surface 35. The part of the triple gear 30 provided with the meshing sleeve combination teeth 31 and the bevel teeth 32 is used as a base part 36, the part provided with the front differential half shaft transmission teeth 33 is used as an outer edge part 37, and the inclined side wall of the sinking groove 34 and the inclined transition surface 35 enable the outer edge part 37 of the triple gear to be in an offset state relative to the base part 36 along the axial direction of the triple gear, so that the overall weight of the triple gear is favorably reduced and the space occupation is favorably reduced under the condition of meeting the transmission requirement.
As shown in fig. 2, in order to avoid stress concentration and better avoid a differential case 40 of the interaxle differential, an annular transition groove 38 is arranged at the junction of the groove bottom wall and the groove side wall of the sinking groove 34, and the cross-sectional profile of the groove side wall of the annular transition groove 38 is arc-shaped. In addition, the groove bottom wall of the sinking groove 34 is provided with an annular avoiding groove 39, a part of the large end of the conical tooth 32 is cut off by the annular avoiding groove 39, and the cross-sectional profile of the groove side wall of the annular avoiding groove 39 is arc-shaped.
The triple gear 30 is a forged part, and the meshing sleeve combining teeth 31, the bevel teeth 32 and the front differential half shaft transmission teeth 33 are integrally formed in the forging process of the triple gear 30, so that the structural strength is high, and the cost is low.
During assembly, the end face of one end, provided with the bevel gear 32, of the triple gear 30 is provided with the sunken groove 34, so that the end face can avoid a differential case 40, located on the outer side of the planetary gear 42 in the axial direction, of the inter-axle differential, and therefore the size of the inter-axle drive axle in the axial direction of the input shaft 10 can be smaller, and the arrangement space can be saved.
Embodiment 2 of the triple gear of the inter-shaft drive axle of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the bevel teeth 32 on the end face of the triple gear 30 are completely located in the sunken groove 34, while in this embodiment, the bevel teeth 32 are only partially located in the sunken groove 34, and a part of the tooth top of the small end protrudes out of the opening edge of the sunken groove 34.
Embodiment 3 of the triple gear of the inter-shaft drive axle of the present invention:
the present embodiment is different from embodiment 1 in that, in embodiment 1, the groove side wall of the sink groove 34 is an inclined side wall, so that the sink groove 34 forms a flaring structure, whereas in the present embodiment, the groove side wall of the sink groove 34 is a vertical wall.
Embodiment 4 of the triple gear of the inter-shaft drive axle of the present invention:
the difference between this embodiment and embodiment 1 is that in embodiment 1, an annular avoiding groove 39 is provided on the bottom wall of the sunken groove 34, a part of the large end of the conical tooth 32 is cut off by the annular avoiding groove 39, and in this embodiment, the bottom wall of the sunken groove 34 except for the conical tooth 32 is of a flat structure.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. An inter-axle drive axle triple gear comprising:
the meshing sleeve combination teeth (31) and the bevel teeth (32) are respectively arranged on the end faces of the two axial ends of the triple gear, the meshing sleeve combination teeth (31) are used for being combined with the sliding meshing sleeve (20) to achieve differential locking, and the bevel teeth (32) are used for being meshed with the planetary gears (42) on the cross shafts (41) of the inter-axle differential;
a front differential half-shaft transmission gear (33) provided on the outer peripheral surface of the triple gear, for outputting power to an inter-wheel differential (50) of the front wheel;
it is characterized in that the preparation method is characterized in that,
a sunk groove (34) is formed in the end face of one end, provided with the bevel gear (32), of the triple gear, and the sunk groove (34) is used for avoiding a differential case (40) which is positioned on the outer side of the planetary gear (42) in the axial direction on the inter-axle differential;
the bevel teeth (32) are arranged on the bottom wall of the sink groove (34).
2. The triple gear of claim 1 wherein the bevel (32) is located entirely within the counter sink (34).
3. The triple gear according to claim 1, characterized in that the groove side walls of the counter groove (34) are inclined side walls, such that the counter groove (34) forms a flared structure.
4. The triple gear according to claim 3, characterized in that a portion of the end face of the triple gear from the root of the sleeve coupling teeth (31) to the root of the front differential side gear teeth (33) forms an inclined transition surface (35) such that a base portion (36) of the triple gear provided with the sleeve coupling teeth (31) and the bevel teeth (32) is axially offset from an outer edge portion (37) provided with the front differential side gear teeth (33).
5. The triple gear according to one of claims 1 to 4, characterized in that an annular transition groove (38) is provided at the intersection of the groove bottom wall and the groove side wall of the counter groove (34).
6. The triple gear according to claim 5, characterized in that the cross-sectional profile of the groove side wall of the annular transition groove (38) is arc-shaped.
7. The triple gear according to any one of claims 1 to 4, characterized in that an annular escape groove (39) is provided on a groove bottom wall of the counter groove (34), and a part of a large end of the conical tooth (32) is cut off by the annular escape groove (39).
8. The triple gear according to claim 7, characterized in that the cross-sectional profile of the groove side wall of the annular escape groove (39) is arc-shaped.
9. The triple gear according to any one of claims 1 to 4, characterized in that it is a forging, the sleeve coupling teeth (31), the bevel teeth (32) and the differential side gearing teeth (33) being forged.
10. The triple gear according to any one of claims 1 to 4, characterized in that the front differential side gear teeth (33) are spur gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121761097.XU CN215410041U (en) | 2021-07-30 | 2021-07-30 | Triple gear of inter-axle drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121761097.XU CN215410041U (en) | 2021-07-30 | 2021-07-30 | Triple gear of inter-axle drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215410041U true CN215410041U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121761097.XU Active CN215410041U (en) | 2021-07-30 | 2021-07-30 | Triple gear of inter-axle drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215410041U (en) |
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2021
- 2021-07-30 CN CN202121761097.XU patent/CN215410041U/en active Active
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