CN219487187U - Drive axle of vehicle and vehicle - Google Patents
Drive axle of vehicle and vehicle Download PDFInfo
- Publication number
- CN219487187U CN219487187U CN202223609767.3U CN202223609767U CN219487187U CN 219487187 U CN219487187 U CN 219487187U CN 202223609767 U CN202223609767 U CN 202223609767U CN 219487187 U CN219487187 U CN 219487187U
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- Prior art keywords
- gear
- drive axle
- planetary
- differential
- transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model discloses a drive axle of a vehicle and the vehicle, the drive axle of the vehicle comprises: a bridge housing; the driving piece is arranged on the axle housing; the transmission includes: the auxiliary shaft, the planetary gear mechanism, the gear shifting mechanism and the differential mechanism are arranged on the main shaft; the planetary gear mechanism includes: the planetary gear is meshed between the sun gear and the gear ring, one of the planetary gear and the gear ring is an output element, the other one is a fixed element, the output element and the sun gear are at least partially sleeved on the shell, the gear shifting mechanism is selectively engaged with the output element and the sun gear, the gear shifting mechanism can be engaged with the sun gear, power of the gear shifting mechanism is transmitted to the sun gear and is further transmitted to the planetary gear or the gear ring, and finally transmitted to the differential mechanism, so that low-speed gear operation of the drive axle is realized, or the gear shifting mechanism is engaged with one of the planetary gear and the gear ring, and the power is directly transmitted to the differential mechanism, so that high-speed gear operation of the drive axle is realized.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a driving axle of a vehicle and the vehicle.
Background
In the related art, the gear shifting mechanism is arranged between the main shaft gear and the auxiliary shaft gear, occupies a transverse space, is unfavorable for the overall arrangement of the vehicle, and the high-speed gear and the low-speed gear are transmitted through the planetary gear mechanism after the main shaft gear and the auxiliary shaft gear are transmitted, so that the transmission stage number is large, and the transmission efficiency is low.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the driving axle of the vehicle, and the driving axle gear shifting mechanism, the planetary gear mechanism and the differential mechanism of the vehicle are compact, so that the driving axle has the advantages of small volume, light weight, high power density and the like. .
The utility model further proposes a vehicle.
The drive axle of a vehicle according to the present utility model includes: a bridge housing; the driving piece is arranged on the axle housing; a transmission, the transmission comprising: the auxiliary shaft is in transmission connection with the driving piece, the planetary gear mechanism is in transmission connection with the auxiliary shaft, the differential mechanism is provided with a shell, and the gear shifting mechanism is arranged on the shell; the planetary gear mechanism includes: the planetary gear is meshed between the sun gear and the gear ring, one of the planet carrier and the gear ring is an output element, the other of the planet carrier and the gear ring is a fixed element, the fixed element is fixed with a box body of the transmission, the output element and the sun gear are at least partially sleeved on the shell, and the gear shifting mechanism is selectively engaged with the output element and the sun gear to output power of the planetary gear mechanism to the differential mechanism.
According to the drive axle of the vehicle, the gear shifting mechanism is arranged on the differential case, one of the planet carrier and the gear ring is an output element, the sun gear and the output element are at least partially sleeved on the differential case, and the gear shifting mechanism is selectively engaged with the sun gear and the output element, so that the gear shifting mechanism, the planet gear mechanism and the differential are compactly arranged, and the drive axle has the advantages of small size, light weight, high power density and the like.
In some examples of the utility model, the shift structure includes: and the gear shifting part is arranged at one end, far away from the planetary gear mechanism, of the shell of the differential mechanism, and is matched with a shifting fork of the driving axle so as to move along the axial direction of the differential mechanism under the driving of the shifting fork.
In some examples of the present utility model, the gear shifting mechanism includes a joint portion disposed at an end of a housing of the differential adjacent to the planetary gear mechanism, the joint portion being connected to the gear shifting portion, a first mating portion being disposed at a portion of the housing where the sun gear is sleeved, and a second mating portion being disposed at a portion of the housing where the output element is sleeved, the joint portion being selectively secured to the first mating portion and the second mating portion.
In some examples of the utility model, the engagement portion is provided with external splines, the first mating portion and the second mating portion are provided with internal splines, and the engagement portion is selectively spline-mated with the first mating portion and the second mating portion.
In some examples of the utility model, the other of the planet carrier and the ring gear is a stationary element that is fixed with a housing of the transmission.
In some examples of the utility model, the transmission includes a main shaft drivingly connected to the drive member, the main shaft drivingly connected to the auxiliary shaft.
In some examples of the utility model, the transmission further comprises: the auxiliary shaft is provided with a main shaft gear, a first auxiliary shaft gear is arranged on the auxiliary shaft, the auxiliary shaft is provided with a first auxiliary shaft gear and a second auxiliary shaft gear, the first auxiliary shaft gear is meshed with the main shaft gear, and the second auxiliary shaft gear is meshed with the first auxiliary shaft gear.
In some examples of the utility model, the drive axle of the vehicle further comprises: the half shaft is in transmission connection with the differential mechanism, the auxiliary shaft is hollow, and the auxiliary shaft is sleeved on the half shaft.
In some examples of the utility model, when the output member is a ring gear, the planet gears include first and second intermeshed planet gears, the first planet gear being in mesh with the sun gear, and the second planet gear being in mesh with the ring gear.
The vehicle according to the present utility model includes: the drive axle of the vehicle described above.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a partial cross-sectional view of a drive axle according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a drive axle according to an embodiment of the utility model.
Reference numerals:
1. a drive axle;
10. a driving member; 20. a transmission; 21. a main shaft; 210. a spindle gear; 22. a secondary shaft; 220. a first countershaft gear; 23. a planetary gear mechanism; 24. a differential; 25. a sun gear; 250. a first mating portion; 26. a planet wheel; 27. a planet carrier; 28. a gear ring; 29. a second mating portion; 30. a half shaft; 40. a gear shifting mechanism; 41. a shift section; 42. a joint; 50. an intermediate shaft; 51. a first countershaft gear; 52. a second countershaft gear.
Detailed Description
Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.
A transaxle 1 of a vehicle according to an embodiment of the present utility model is described below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, a transaxle 1 of a vehicle according to an embodiment of the present utility model includes: axle housing, drive member 10 and transmission 20. The axle housing is a housing part of the drive axle 1, and mainly can play a role in installation and fixation, the transmission 20 can be arranged in the axle housing, the driving element 10 can play a role in driving, the driving element 10 is arranged in the axle housing, so that the driving element 10 is conveniently in transmission fit with the transmission 20 through the axle housing, the transmission 20 can change the rotating speed and torque from an engine, and the output shaft and the input shaft transmission ratio can be changed through fixation or stepping.
As shown in fig. 1 and 2, the transmission 20 includes: the main shaft 21, the auxiliary shaft 22, the planetary gear mechanism 23, the gear shifting structure 40 and the differential 24, wherein the differential 24 is provided with a shell, and the gear shifting structure 40 is arranged on the shell, so that the integral arrangement of the drive axle 1 is facilitated, and the arrangement of the drive axle 1 is more compact. The driving member 10 is in driving connection with a main shaft 21, the main shaft 21 is in driving connection with a counter shaft 22, the counter shaft 22 is in driving connection with a planetary gear mechanism 23, and the planetary gear mechanism 23 is in driving connection with a differential 24. Specifically, the driving member 10 may drive the main shaft 21 to move, the main shaft 21 then drives the auxiliary shaft 22 to move, and the auxiliary shaft 22 may drive the planetary gear mechanism 23 to move, so that the planetary gear mechanism 23 drives the differential 24 to move, and the differential 24 may rotate the left and right (or front and rear) driving wheels of the vehicle at different rotational speeds. The driving member 10 may be a motor.
Specifically, as shown in fig. 1 and 2, the planetary gear mechanism 23 includes: sun gear 25, planetary gear 26, carrier 27 and ring gear 28, planetary gear 26 is disposed on carrier 27, planetary gear 26 meshes between sun gear 25 and ring gear 28, one of carrier 27 and ring gear 28 is the output member, the other is the fixed member, fixed member is fixed with the box of gearbox, the output member and sun gear 25 are at least partly overlapped on the casing, gearshift 40 selectively engages with output member and sun gear 25 to output planetary gear mechanism 23 power to differential 24. That is, after the counter shaft 22 rotates, the shift mechanism 40 may be engaged with the sun gear 25, the power thereof may be transmitted to the sun gear 25 and finally to the differential gear 24, the high-speed operation of the transaxle 1 is achieved, or the shift mechanism 40 may be engaged with one of the carrier 27 and the ring gear 28, the power may be transmitted to the sun gear 25 and then further transmitted to the carrier 27 or the ring gear 28, the power is transmitted to the differential gear 24 through the carrier 27 or the ring gear 28, and the low-speed operation of the transaxle 1 is achieved.
Therefore, by arranging the gear shifting mechanism on the differential housing, one of the planet carrier and the gear ring is an output element, the sun gear and the output element are at least partially sleeved on the differential housing, and the gear shifting mechanism is selectively engaged with the sun gear and the output element, so that the gear shifting mechanism, the planet gear mechanism and the differential are compactly arranged, and the drive axle has the advantages of small volume, light weight, high power density and the like.
The counter shaft 22, the planetary gear mechanism 23, and the differential gear 24 may be coaxially disposed within the axle housing, and the counter shaft 22, the planetary gear mechanism 23, and the differential gear 24 may be axially disposed in sequence. The auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24 are all arranged in the axle housing, so that the axle housing can protect the auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24, the auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24 are prevented from being contacted with foreign objects, the work is more stable, in addition, the auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24 are coaxially arranged, the auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24 are axially and sequentially arranged, the transmission among the auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24 is more convenient, and the arrangement of the auxiliary shaft 22, the planetary gear mechanism 23 and the differential mechanism 24 in the axle housing is more compact, so that the size of the drive axle 1 is small, the weight is light, the eccentric moment can be reduced, and the power density is increased.
Further, as shown in fig. 1, the shift structure 40 includes: and a gear shifting part 41, wherein the gear shifting part 41 is arranged at one end of the housing of the differential 24 far away from the planetary gear mechanism 23, and the gear shifting part 41 is matched with a shifting fork of the drive axle 1 so as to move along the axial direction of the differential 24 under the driving of the shifting fork. The gear shifting portion 41 can play a gear shifting role, the gear shifting portion 41 is arranged at one end, far away from the planetary gear mechanism 23, of the casing of the differential 24, the gear shifting portion 41 is convenient to set, the gear shifting portion 41 can be matched with a shifting fork, a user can control gear shifting of the gear shifting portion 41 by controlling the shifting fork during operation, the gear shifting portion 41 moves along the axial direction of the differential 24 under driving of the shifting fork, and accordingly gear shifting operation of the gear shifting structure 40 can be achieved.
In addition, as shown in fig. 1, the shift mechanism 40 includes a joint portion 42, the joint portion 42 is provided at one end of the housing of the differential 24 near the planetary gear mechanism 23, the joint portion 42 is connected with the shift portion 41, a first engaging portion 250 is provided at a portion of the sun gear 25 that is sleeved on the housing, a second engaging portion 29 is provided at a portion of the output element that is sleeved on the housing, and the joint portion 42 is selectively fixed with the first engaging portion 250 and the second engaging portion 29. The coupling portion 42 is disposed at an end of the housing of the differential 24 near the planetary gear mechanism 23, so that the coupling portion 42 is conveniently disposed, and the coupling portion 42 is connected with the shifting portion 41, so that the coupling portion 42 and the shifting portion 41 can form a whole, the mounting and the disposition of the shifting structure 40 are conveniently performed, and the shifting portion 41 can drive the coupling portion 42 to move.
The portion of the sun gear 25 sleeved on the housing is provided with a first mating portion 250, the portion of the output element sleeved on the housing is provided with a second mating portion 29, and the joint portion 42 is selectively fixed with the first mating portion 250 and the second mating portion 29. That is, the engagement portion 42 may be connected to the first engagement portion 250 of the sun gear 25, and the engagement portion 42 may be connected to the second engagement portion 29 of the carrier 27 or the ring gear 28 to switch the gear of the transaxle 1.
Further, the engagement portion is provided with external splines, and the first and second fitting portions 250 and 29 are provided with internal splines, and the engagement portion is selectively spline-fitted with the first and second fitting portions 250 and 29. External splines are provided at the joint portion 42, and the first and second fitting portions 250 and 29 are provided with internal splines, so that the external splines can be selectively spline-fitted with the internal splines of the first or second fitting portions 250 and 29, thereby ensuring firm fitting between the first and second fitting portions 250 and 29 and the joint portion 42, and power at the joint portion 42 can be better transmitted to the first and second fitting portions 250 and 29.
As shown in fig. 1 and 2, the drive axle 1 of the vehicle further includes: the half shaft 30, the half shaft 30 is in transmission connection with the differential 24, the auxiliary shaft 22 is hollow, and the auxiliary shaft 22 is sleeved on the half shaft 30. The half shaft 30 is in driving connection with the differential 24, so that the half shaft 30 can transmit torque between the differential 24 and the driving wheels, and the auxiliary shaft 22 and the planetary gear mechanism 23 are sleeved on the half shaft 30, so that the auxiliary shaft 22 and the planetary gear mechanism 23 are conveniently arranged, and the auxiliary shaft 22, the planetary gear mechanism 23 and the differential 24 can be coaxially arranged, so that the auxiliary shaft 22, the planetary gear mechanism 23 and the differential 24 are compacter in an axle housing, thereby enabling the driving axle 1 to be small in size and light in weight, reducing eccentric moment and increasing power density.
In addition, as shown in fig. 1 and 2, the transmission 20 further includes: the intermediate shaft 50, the intermediate shaft 50 is disposed in the axle housing, the main shaft 21 is provided with a main shaft gear 210, the auxiliary shaft 22 is provided with a first auxiliary shaft gear 220, the intermediate shaft 50 is provided with a first intermediate shaft gear 51 and a second intermediate shaft gear 52, the first intermediate shaft gear 51 is meshed with the main shaft gear 210, and the second intermediate shaft gear 52 is meshed with the first auxiliary shaft gear 220. That is, the first intermediate shaft gear 51 and the second intermediate shaft gear 52 can both play a role in intermediate transmission, the main shaft gear 210 is in transmission fit with the first intermediate shaft gear 51 first, drives the first intermediate shaft gear 51 to rotate, and then drives the second intermediate shaft gear 52 to rotate, and then the second intermediate shaft gear 52 drives the first auxiliary shaft gear 220 to rotate, so that the transmission 20 can be in better transmission fit.
When the output member is a ring gear 28, the planet gears 26 include first and second intermeshed planet gears, the first planet gear being intermeshed with the sun gear 25 and the second planet gear being intermeshed with the ring gear 28. The first planet wheels and the second planet wheels are arranged such that the direction of rotation of the ring gear 28 coincides with the sun gear 25. It will be appreciated that when the gear shifting mechanism 40 is engaged with the ring gear 28, its power is transmitted to the sun gear 25, then from the sun gear 25 on to the first planet gear, from the first planet gear to the second planet gear, then from the second planet gear to the ring gear 28, and finally to the differential 24, so as to achieve a low gear operation of the transaxle 1.
It should be noted that, as shown in fig. 1 and 2, the drive axle 1 is of a two-gear structure, and a shift mechanism may be added to the main shaft 21 or the auxiliary shaft 22, so that four-gear output may be achieved, and the drive axle 1 may be composed of a gear transmission between the main shaft 21 and the auxiliary shaft 50, a gear transmission between the auxiliary shaft 50 and the auxiliary shaft 22, and a planetary gear mechanism 23, and a three-stage transmission, and shift is achieved by the planetary gear mechanism 23, where the planetary gear mechanism 23 may be disposed between the auxiliary shaft 22 and the differential 24, or may be disposed between the main shaft 21 and the auxiliary shaft 50, or may be modified to a form of a one-stage (or multi-stage) gear transmission plus a one-stage planetary gear mechanism 23 transmission, and in addition, due to the gear transmission between the main shaft 21 and the auxiliary shaft 50 and the auxiliary shaft 22, the gear transmission between the auxiliary shaft 50 has only 1 or 2 rows of gear widths at the position of the driving element 10, the overall lateral dimension of the drive axle 1 is smaller, and the vehicle is easier and more versatile.
According to an embodiment of the present utility model, a vehicle includes: the transaxle 1 of the vehicle described in the above embodiment.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A transaxle (1) of a vehicle, characterized by comprising:
a bridge housing;
a driving member (10), the driving member (10) being provided to the axle housing;
a transmission (20), the transmission (20) comprising: a countershaft (22), a planetary gear mechanism (23), a gear shifting mechanism (40) and a differential mechanism (24), wherein the countershaft (22) is in transmission connection with the driving piece (10), the planetary gear mechanism (23) is in transmission connection with the countershaft (22), the differential mechanism (24) is provided with a shell, and the gear shifting mechanism (40) is arranged on the shell;
the planetary gear mechanism (23) includes: sun gear (25), planet wheel (26), planet carrier (27) and ring gear (28), planet wheel (26) set up in on planet carrier (27), planet wheel (26) meshing is in sun gear (25) with between ring gear (28), planet carrier (27) with one of ring gear (28) is output element, output element with sun gear (25) cover is at least partially located on the casing, gearshift (40) selectively with output element with sun gear (25) engage, in order to with power take off of planetary gear mechanism (23) to differential mechanism (24).
2. The drive axle (1) of a vehicle according to claim 1, characterized in that the gear shift mechanism (40) comprises: and the gear shifting part (41) is arranged at one end, far away from the planetary gear mechanism (23), of the shell of the differential mechanism (24), and the gear shifting part (41) is matched with a shifting fork of the driving axle (1) so as to move along the axial direction of the differential mechanism (24) under the driving of the shifting fork.
3. The drive axle (1) of a vehicle according to claim 2, characterized in that the shift mechanism (40) includes a joint portion (42), the joint portion (42) is provided at an end of a housing of the differential gear (24) near the planetary gear mechanism (23), the joint portion (42) is connected with the shift portion (41), a portion of the sun gear (25) sleeved on the housing is provided with a first mating portion (250), a portion of the output element sleeved on the housing is provided with a second mating portion (29), and the joint portion (42) is selectively fixed with the first mating portion (250) and the second mating portion (29).
4. A drive axle (1) of a vehicle according to claim 3, characterized in that the engagement portion (42) is provided with external splines, the first mating portion (250) and the second mating portion (29) are provided with internal splines, and the engagement portion is selectively spline-mated with the first mating portion (250) and the second mating portion (29).
5. The drive axle (1) of a vehicle according to claim 1, characterized in that the other of the planet carrier (27) and the ring gear (28) is a stationary element, which is fixed with the housing of the transmission (20).
6. The drive axle (1) of a vehicle according to claim 1, characterized in that the transmission comprises a main shaft (21), the main shaft (21) being in driving connection with the drive member (10), the main shaft (21) being in driving connection with the auxiliary shaft (22).
7. The drive axle (1) of a vehicle according to claim 6, characterized in that the transmission (20) further comprises: jackshaft (50), be provided with main shaft gear (210) on main shaft (21), be provided with first countershaft gear (220) on countershaft (22), jackshaft (50) are provided with first jackshaft gear (51) and second jackshaft gear (52), first jackshaft gear (51) with main shaft gear (210) meshing, second jackshaft gear (52) with first countershaft gear (220) meshing.
8. The drive axle (1) of a vehicle according to claim 1, further comprising: the auxiliary shaft (22) is hollow, and the auxiliary shaft (22) is sleeved on the half shaft (30).
9. The drive axle (1) of a vehicle according to claim 1, characterized in that, when the output element is a ring gear (28), the planetary wheels (26) comprise a first planetary wheel and a second planetary wheel which mesh with each other, the first planetary wheel being in mesh with the sun wheel (25), the second planetary wheel being in mesh with the ring gear (28).
10. A vehicle, characterized by comprising: the drive axle (1) of a vehicle according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223609767.3U CN219487187U (en) | 2022-12-30 | 2022-12-30 | Drive axle of vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223609767.3U CN219487187U (en) | 2022-12-30 | 2022-12-30 | Drive axle of vehicle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219487187U true CN219487187U (en) | 2023-08-08 |
Family
ID=87504595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223609767.3U Active CN219487187U (en) | 2022-12-30 | 2022-12-30 | Drive axle of vehicle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219487187U (en) |
-
2022
- 2022-12-30 CN CN202223609767.3U patent/CN219487187U/en active Active
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