CN216691918U - Transfer case output structure, transfer case and car - Google Patents
Transfer case output structure, transfer case and car Download PDFInfo
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- CN216691918U CN216691918U CN202220082122.XU CN202220082122U CN216691918U CN 216691918 U CN216691918 U CN 216691918U CN 202220082122 U CN202220082122 U CN 202220082122U CN 216691918 U CN216691918 U CN 216691918U
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- transfer case
- driven gear
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Abstract
The utility model relates to the technical field of automobiles, in particular to an output structure of a transfer case. The shell drives the driven gear assembly to penetrate through the shell along the axial direction to form a stepped hole, and a first internal spline is arranged on the inner wall of the stepped hole. The universal-joint integrated spline shaft assembly comprises a first shaft part, a universal joint and a second shaft part, wherein the first shaft part, the universal joint and part of the second shaft part are arranged in the stepped hole, and one end of the second shaft part is arranged outside the stepped hole and is in transmission connection with the front output shaft. The universal joint is arranged between the first shaft part and the second shaft part, a first external spline is arranged on the first shaft part, and the first internal spline is matched with the first external spline, so that the shell is in transmission connection with the driven gear assembly and the universal joint integrated spline shaft assembly. The utility model also provides a transfer case and an automobile.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a transfer case output structure, a transfer case and an automobile.
Background
In a multi-shaft-drive vehicle, a transfer case is generally mounted to distribute power output from a transmission to transaxles. The basic structure of the transfer case is a gear transmission system, the input shaft of the transfer case is connected with the second shaft of the speed changer directly or through a universal transmission device, and a plurality of output shafts of the transfer case are respectively connected with each drive axle through the universal transmission device. At present, a transfer case output structure is mainly flange output, the requirement on peripheral space is high in the whole vehicle arrangement, the arrangement is difficult, and the interference is easy to occur due to the fact that the distance between the transfer case output structure and a transmission is short. Meanwhile, the universal joint on the transmission shaft is exposed outside, so that ash is easy to enter and water enters, and the service life of the transmission shaft is influenced.
Therefore, a transfer case output structure, a transfer case and a vehicle are needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a transfer case output structure which has a small size as a whole, can prevent interference with other parts, can prevent dust and water from entering a universal joint, and can ensure a service life of the transfer case output structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a transfer case output structure, comprising:
the shell is provided with a driven gear assembly, the shell is provided with a stepped hole in an axial penetrating manner, and a first internal spline is arranged on the inner wall of the stepped hole;
an organic whole key shaft assembly of universal joint, an organic whole key shaft assembly of universal joint includes first axial region, universal joint and second axial region, first axial region universal joint and part second axial region all sets up in the shoulder hole, the one end setting of second axial region is in outside the shoulder hole to be connected with preceding output shaft transmission, the universal joint sets up first axial region with the centre of second axial region, be provided with first external splines on the first axial region, first internal splines with first external splines cooperate, so that the casing take driven gear assembly with an organic whole key shaft assembly transmission of universal joint is connected.
Optionally, the transfer case further comprises a first bearing, the first bearing is sleeved on the outer wall of the case with the driven gear assembly away from the first internal spline, and a first outer ring of the first bearing is connected to the transfer case outer shell.
Optionally, still include the second bearing, the second bearing cover is established the casing area driven gear assembly sets up on the outer wall of the one end of first internal spline, the first outer lane of second bearing is connected in the transfer case shell body.
Optionally, still include the oil blanket circle, the oil blanket circle cover is established on the outer wall of casing area driven gear assembly, the outer lane of oil blanket circle with transfer case shell body butt, the oil blanket circle is used for cutting off casing area driven gear assembly with cavity between the transfer case shell body.
Optionally, still include the dust ring, the dust ring includes first circle portion and second circle portion, first circle portion cover is established the casing area driven gear assembly is kept away from the outer wall department of the one end of first internal spline, second circle portion connect in first circle portion is kept away from the one end of casing area driven gear assembly center department, the diameter of second circle portion is less than the diameter of first circle portion.
Optionally, still include the protective sheath, the protective sheath is established second axle portion sets up on the outer axle wall of shoulder hole, the protective sheath upper ring is equipped with outstanding limit, the outer wall on outstanding limit with the inner wall butt of second circle portion.
Optionally, still include the clamp, the clamp cover is established on the protective sheath, so that the protective sheath with second axle portion butt.
Another object of the present invention is to provide a transfer case, which can prevent the output structure of the transfer case from interfering with other parts, facilitate the arrangement of the internal parts of the transfer case, prevent the water from entering into the universal joint of the output structure of the transfer case, and ensure the service life of the transfer case.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a transfer case, includes transfer case shell body, transfer case driving gear, preceding output shaft and foretell transfer case output structure, the transfer case driving gear with the shell area driven gear assembly meshing transmission is connected.
Optionally, the outer wall of the shell with the driven gear assembly is provided with driven gear teeth to be in meshed connection with driving gear teeth of the transfer case driving gear.
Optionally, a second external spline is arranged on the second shaft portion, a transmission hole is formed in the front output shaft, a second internal spline is arranged on the inner wall of the transmission hole, and the second external spline is matched with the second internal spline, so that the universal-joint integral spline shaft assembly is in transmission connection with the front output shaft.
Still another object of the present invention is to provide an automobile, which can prevent the output structure of the transfer case from interfering with other parts, facilitate the arrangement of the internal parts of the transfer case, prevent the water from entering into the universal joint of the output structure of the transfer case, and ensure the service life of the transfer case.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an automobile comprises the transfer case.
The utility model has the beneficial effects that:
the utility model provides a transfer case output structure which comprises a shell body with a driven gear assembly and a universal joint integral spline shaft assembly. The shell drives the driven gear assembly to axially penetrate through a stepped hole, and a first internal spline is arranged on the inner wall of the stepped hole. The universal-joint integrated spline shaft assembly comprises a first shaft part, a universal joint and a second shaft part, wherein the first shaft part, the universal joint and part of the second shaft part are arranged in the stepped hole, and one end of the second shaft part is arranged outside the stepped hole and is in transmission connection with the front output shaft. The universal joint is arranged between the first shaft part and the second shaft part, a first external spline is arranged on the first shaft part, and the first internal spline is matched with the first external spline, so that the shell is in transmission connection with the driven gear assembly and the universal joint integrated spline shaft assembly.
The shell is provided with a driven gear assembly and a first shaft part of the universal-joint integral spline shaft assembly in a transmission mode, a second shaft part of the universal-joint integral spline shaft assembly is in a transmission mode with a front output shaft, and the universal joint is arranged between the first shaft part and the second shaft part, so that the turning transmission of the universal-joint integral spline shaft assembly can be achieved. And the universal joint sets up the inside at casing area driven gear assembly, can save the space in the transfer case shell, and can prevent that the universal joint from advancing grey into water, guarantees the life of transfer case output structure. The shell is provided with the driven gear assembly which is matched with the universal joint integrated spline shaft assembly through a spline, a flange structure is omitted, the space can be further saved, and the interference of the output structure of the transfer case and other parts is prevented.
The utility model also provides a transfer case, which comprises a transfer case outer shell, a transfer case driving gear, a front output shaft and the transfer case output structure, wherein the transfer case driving gear is in meshing transmission connection with the shell driven gear assembly. This transfer case can prevent that transfer case output structure from taking place to interfere with other parts, the arrangement of the inside part of transfer case of being convenient for, and can prevent that the universal joint of transfer case output structure from advancing grey into and intaking, guarantees the life of transfer case.
The utility model further provides an automobile comprising the transfer case. This car can prevent that transfer case output structure from taking place to interfere with other parts, the arrangement of the inside part of transfer case of being convenient for, and can prevent that the universal joint of transfer case output structure from advancing grey into and intaking, guarantee the life of transfer case to reduce the maintenance of car.
Drawings
Fig. 1 is a partial cross-sectional view of a transfer case output structure provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an output structure of a transfer case provided in an embodiment of the present invention.
In the figure:
1. the shell is provided with a driven gear assembly; 11. driven gear teeth;
2. a universal joint integral spline shaft assembly; 21. a first shaft portion; 211. a first external spline; 22. a universal joint; 23. a second shaft portion; 231. a second male spline;
3. a first bearing; 4. a second bearing; 5. an oil seal ring;
6. a dust ring; 61. a first collar portion; 62. a second collar portion;
7. and (6) a protective sleeve.
Detailed Description
The technical scheme of the utility model is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
At present, a transfer case output structure is mainly flange output, the requirement on peripheral space is high in the whole vehicle arrangement, the arrangement is difficult, and the interference is easy to occur due to the fact that the distance between the transfer case output structure and a transmission is short. Meanwhile, the universal joint 22 on the transmission shaft is exposed outside, so that ash is easy to enter and water enters, and the service life of the transmission shaft is influenced. Therefore, the present embodiment provides a transfer case output structure to solve the above problems.
As shown in fig. 1-2, the transfer case output structure includes a case driven gear assembly 1 and a universal-joint integral spline shaft assembly 2, wherein a transfer case driving gear (not shown) is engaged with the case driven gear assembly 1 for transmission connection, the case driven gear assembly 1 is in transmission connection with the universal-joint integral spline shaft assembly 2, and the universal-joint integral spline shaft assembly 2 is in transmission connection with a front output shaft (not shown).
Specifically, the housing drives the driven gear assembly 1 to axially penetrate through a stepped hole, and a first internal spline (not shown in the figure) is arranged on the inner wall of the stepped hole. Alternatively, to take full advantage of the space within the housing-driven gear assembly 1, a first internal spline is provided at the end of the stepped bore.
The universal-joint integral spline shaft assembly 2 comprises a first shaft part 21, a universal joint 22 and a second shaft part 23, wherein the first shaft part 21, the universal joint 22 and a part of the second shaft part 23 are all arranged in a stepped hole, and one end of the second shaft part 23 is arranged outside the stepped hole to be in transmission connection with a front output shaft. The universal joint 22 is arranged between the first shaft part 21 and the second shaft part 23, the first shaft part 21 is provided with a first external spline 211, and the first internal spline is matched with the first external spline 211, so that the shell drives the driven gear assembly 1 to be in transmission connection with the universal joint integral spline shaft assembly 2.
It can be known that, the casing drives driven gear assembly 1 and is connected with the transmission of the first axial region 21 of the integrative integral key shaft assembly of universal joint 2, and the second axial region 23 and the preceding output shaft transmission of the integrative integral key shaft assembly of universal joint 2 are connected, are provided with universal joint 22 between first axial region 21 and the second axial region 23, can realize the diversion transmission of the integrative integral key shaft assembly of universal joint 2. And the universal joint 22 sets up in the inside of casing area driven gear assembly 1, can save the space in the transfer case shell, and can prevent that universal joint 22 from advancing the ash and intaking, guarantees the life of transfer case output structure. The shell drives the driven gear assembly 1 to be matched with the universal-joint integral spline shaft assembly 2 through splines, so that a flange structure is omitted, the space can be further saved, the output structure of the transfer case is prevented from interfering with other parts, the mass can be reduced, and the integral lightweight of an automobile is facilitated.
In order to ensure that the position of the transfer case output is fixed, the transfer case output is stationary relative to the transfer case outer housing. Optionally, the transfer case output structure further includes a first bearing 3, the first bearing 3 is sleeved on an outer wall of the driven gear assembly 1 with the housing away from the first internal spline, and a first outer ring of the first bearing 3 is connected to an outer housing (not shown in the figure) of the transfer case.
In order to further enhance the fixing of the position of the output structure of the transfer case, optionally, the output structure of the transfer case further includes a second bearing 4, the second bearing 4 is sleeved on the outer wall of the end of the housing, where the driven gear assembly 1 is provided with the first internal spline, and a first outer ring of the second bearing 4 is connected to the outer housing of the transfer case. Namely, the first bearing 3 and the second bearing 4 are arranged at the positions of the driven gear assembly 1 driven by the shell and close to the two ends at intervals so as to ensure the fixing effect.
Optionally, the transfer case output structure further comprises an oil seal ring 5, the oil seal ring 5 is sleeved on the outer wall of the case driven gear assembly 1, an outer ring of the oil seal ring 5 is abutted to the transfer case outer shell, and the oil seal ring 5 is used for partitioning a cavity between the case driven gear assembly 1 and the transfer case outer shell. Optionally, the shell drives the driven gear assembly 1 to press the oil seal ring 5 between the shell of the transfer case, so as to ensure the sealing effect of the oil seal ring 5.
In order to prevent dust from entering the stepped hole of the housing-driven gear assembly 1 and enhance the dust-proof effect on the universal joint 22, the transfer case output structure optionally further comprises a dust ring 6. Specifically, the dust ring 6 includes a first ring portion 61 and a second ring portion 62, the first ring portion 61 is sleeved on the outer wall of the end of the housing belt driven gear assembly 1 away from the first internal spline, and the second ring portion 62 is connected to the end of the first ring portion 61 away from the center of the housing belt driven gear assembly 1. In order to realize the sealing of the dust ring 6 to the gap between the driven gear assembly 1 and the universal joint integral spline shaft assembly 2, the diameter of the second ring part 62 is smaller than that of the first ring part 61, and the diameter of the second ring part 62 is larger than that of the second shaft part 23.
In order to further close the gap between the second ring part 62 of the dust ring 6 and the universal joint integral spline shaft assembly 2, optionally, the transfer case output structure further comprises a protective sleeve 7, the protective sleeve 7 is sleeved on the shaft wall of the second shaft part 23 arranged outside the stepped hole, a protruding edge is annularly arranged on the protective sleeve 7, and the outer wall of the protruding edge abuts against the inner wall of the second ring part 62. It can be known that the protective sleeve 7 is sleeved on the second shaft portion 23 of the universal-joint integral spline shaft assembly 2, and the protruding edge abuts against the inner wall of the second ring portion 62 of the dust ring 6. Alternatively, the protective sleeve 7 is made of rubber and has a certain elasticity, so that when the second shaft portion 23 is turned relative to the first shaft portion 21, the second shaft portion 23 is prevented from directly colliding with the dust deflector 6, so as to protect the second shaft portion 23 and the dust deflector 6.
In order to ensure the sealing connection between the protective sleeve 7 and the second shaft portion 23 of the universal-joint integral spline shaft assembly 2 and ensure the dustproof and waterproof effect, optionally, the transfer case output structure further comprises a hoop, and the hoop is sleeved on the protective sleeve 7 so that the protective sleeve 7 abuts against the second shaft portion 23.
The embodiment also provides a transfer case, including transfer case shell body, transfer case driving gear, preceding output shaft and foretell transfer case output structure, the transfer case driving gear drives driven gear assembly 1 meshing transmission with the casing and is connected. This transfer case can prevent that transfer case output structure from taking place to interfere with other parts, the arrangement of the inside part of transfer case of being convenient for, and can prevent that the universal joint 22 of transfer case output structure from advancing grey into water, guarantees the life of transfer case.
Optionally, driven gear teeth 11 are arranged on the outer wall of the shell driven gear assembly 1 to be in meshed connection with driving gear teeth of the transfer case driving gear, so that the transfer case driving gear is in meshed transmission connection with the shell driven gear assembly 1.
Optionally, a second external spline 231 is arranged on the second shaft portion 23, a transmission hole is arranged on the front output shaft, a second internal spline is arranged on the inner wall of the transmission hole, and the second external spline 231 is matched with the second internal spline, so that the universal-joint integral spline shaft assembly 2 is in transmission connection with the front output shaft. It can be known that the spline drive connection can effectively reduce the occupation space of transmission coupling assembling, is convenient for the arrangement of transfer case internals.
The embodiment also provides an automobile comprising the transfer case. This car can prevent that transfer case output structure from taking place to interfere with other parts, the arrangement of the inside part of transfer case of being convenient for, and can prevent that the universal joint 22 of transfer case output structure from advancing grey into and intaking, guarantee the life of transfer case to reduce the maintenance of car.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (11)
1. A transfer case output structure, comprising:
the shell is provided with a driven gear assembly (1), the shell is provided with a stepped hole in a penetrating mode along the axial direction of the driven gear assembly (1), and a first internal spline is arranged on the inner wall of the stepped hole;
universal joint integral key shaft assembly (2), universal joint integral key shaft assembly (2) include first axial region (21), universal joint (22) and second axial region (23), first axial region (21) universal joint (22) and part second axial region (23) all set up in the shoulder hole, the one end setting of second axial region (23) is in outside the shoulder hole to be connected with preceding output shaft transmission, universal joint (22) set up first axial region (21) with the centre of second axial region (23), be provided with first external splines (211) on first axial region (21), first internal splines with first external splines (211) cooperate, so that the casing takes driven gear assembly (1) with universal joint integral key shaft assembly (2) transmission connects.
2. The transfer case output structure according to claim 1, characterized by further comprising a first bearing (3), wherein the first bearing (3) is sleeved on an outer wall of the housing driven gear assembly (1) away from the first internal spline, and a first outer ring of the first bearing (3) is connected to an outer housing of the transfer case.
3. The transfer case output structure according to claim 1, further comprising a second bearing (4), wherein the second bearing (4) is sleeved on an outer wall of one end of the housing with the driven gear assembly (1) provided with the first internal spline, and a first outer ring of the second bearing (4) is connected to an outer housing of the transfer case.
4. The transfer case output structure of claim 2, further comprising an oil seal ring (5), wherein the oil seal ring (5) is sleeved on the outer wall of the casing driven gear assembly (1), the outer ring of the oil seal ring (5) is abutted against the transfer case outer shell, and the oil seal ring (5) is used for isolating a cavity between the casing driven gear assembly (1) and the transfer case outer shell.
5. The transfer case output structure according to claim 1, further comprising a dust ring (6), wherein the dust ring (6) comprises a first ring portion (61) and a second ring portion (62), the first ring portion (61) is sleeved on an outer wall of one end of the housing belt driven gear assembly (1) far away from the first internal spline, the second ring portion (62) is connected to one end of the first ring portion (61) far away from the center of the housing belt driven gear assembly (1), and the diameter of the second ring portion (62) is smaller than that of the first ring portion (61).
6. The transfer case output structure according to claim 5, characterized by further comprising a protective sleeve (7), wherein the protective sleeve (7) is sleeved on the shaft wall of the second shaft portion (23) arranged outside the stepped hole, a protruding edge is annularly arranged on the protective sleeve (7), and the outer wall of the protruding edge abuts against the inner wall of the second ring portion (62).
7. The transfer case output structure according to claim 6, further comprising a collar that is fitted over the protective sleeve (7) so that the protective sleeve (7) abuts against the second shaft portion (23).
8. A transfer case comprising a transfer case outer housing, a transfer case drive gear, a front output shaft and a transfer case output arrangement according to any one of claims 1 to 7, the transfer case drive gear being in meshing driving connection with the housing driven gear assembly (1).
9. Transfer case according to claim 8, characterized in that the outer wall of the housing belt driven gear assembly (1) is provided with driven gear teeth (11) for meshing connection with the driving gear teeth of the transfer case driving gear.
10. The transfer case according to claim 8, characterized in that a second male spline (231) is provided on the second shaft portion (23), a transmission hole is provided on the front output shaft, a second female spline is provided on an inner wall of the transmission hole, and the second male spline (231) is matched with the second female spline to drivingly connect the universal-joint-integrated-spline shaft assembly (2) with the front output shaft.
11. A motor vehicle, characterized by comprising a transfer case according to any one of claims 8-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220082122.XU CN216691918U (en) | 2022-01-11 | 2022-01-11 | Transfer case output structure, transfer case and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220082122.XU CN216691918U (en) | 2022-01-11 | 2022-01-11 | Transfer case output structure, transfer case and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691918U true CN216691918U (en) | 2022-06-07 |
Family
ID=81819017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220082122.XU Active CN216691918U (en) | 2022-01-11 | 2022-01-11 | Transfer case output structure, transfer case and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691918U (en) |
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2022
- 2022-01-11 CN CN202220082122.XU patent/CN216691918U/en active Active
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