CN116160852A - Driving axle and vehicle with same - Google Patents

Driving axle and vehicle with same Download PDF

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Publication number
CN116160852A
CN116160852A CN202310118049.6A CN202310118049A CN116160852A CN 116160852 A CN116160852 A CN 116160852A CN 202310118049 A CN202310118049 A CN 202310118049A CN 116160852 A CN116160852 A CN 116160852A
Authority
CN
China
Prior art keywords
shaft
gear
transmission
axle
output shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310118049.6A
Other languages
Chinese (zh)
Inventor
肖鸿飞
段传胜
高雪松
周新华
高明臣
张新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Foton Daimler Automobile Co Ltd
Original Assignee
Beijing Foton Daimler Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Foton Daimler Automobile Co Ltd filed Critical Beijing Foton Daimler Automobile Co Ltd
Priority to CN202310118049.6A priority Critical patent/CN116160852A/en
Publication of CN116160852A publication Critical patent/CN116160852A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/121—Power-transmission from drive shaft to hub
    • B60B35/122—Power-transmission from drive shaft to hub using gearings
    • B60B35/125—Power-transmission from drive shaft to hub using gearings of the planetary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Abstract

The invention discloses a drive axle and a vehicle with the same, wherein the drive axle comprises: a bridge housing; the input shaft is rotatably mounted on the axle housing; the output shaft is rotatably mounted on the axle housing and is in transmission connection with the input shaft, and the output shaft is suitable for being connected with wheels; the half-shaft gear set is arranged in the axle housing and is sleeved on the output shaft in an empty mode, and the half-shaft gear set is in transmission connection with the input shaft; the first transmission shaft is rotatably arranged on the axle housing and is in transmission connection with the half-axle gear set, and the input shaft transmits power to the first transmission shaft through the transmission gear set; wherein the input shaft, the output shaft and the first transmission shaft are located on the same plane. The drive axle provided by the embodiment of the invention has the advantages of compact structure, large torque, avoidance of inter-axle interference and the like.

Description

Driving axle and vehicle with same
Technical Field
The invention relates to the technical field of vehicles, in particular to a drive axle and a vehicle with the drive axle.
Background
The transaxle in the related art generally includes an input shaft, an output shaft, and a drive shaft, and the input shaft and the drive shaft extend in a front-rear direction of a vehicle, and the output shaft extends in a width direction of the vehicle and is connected to wheels, but in order to avoid position interference of the drive shaft and the output shaft, it is generally necessary to locate the drive shaft and the output shaft in different planes, and the diameter of the drive shaft and the diameter of the output shaft are also limited, which not only results in a larger size of the transaxle, but also fails to achieve a larger torque.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a drive axle which has the advantages of compact structure, high torque, and avoidance of inter-axle interference.
The invention further provides a vehicle with the drive axle.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a transaxle including: a bridge housing; the input shaft is rotatably mounted on the axle housing; the output shaft is rotatably mounted on the axle housing and is in transmission connection with the input shaft, and the output shaft is suitable for being connected with wheels; the half-shaft gear set is arranged in the axle housing and is sleeved on the output shaft in an empty mode, and the half-shaft gear set is in transmission connection with the input shaft; the first transmission shaft is rotatably arranged on the axle housing and is in transmission connection with the half-axle gear set, and the input shaft transmits power to the first transmission shaft through the transmission gear set; wherein the input shaft, the output shaft and the first transmission shaft are located on the same plane.
The drive axle provided by the embodiment of the invention has the advantages of compact structure, large torque, avoidance of inter-axle interference and the like.
According to some embodiments of the invention, the side gear set includes: the first shell is connected with the axle housing and is fixed in relative position, and the first shell is sleeved with the output shaft and the first transmission shaft in a hollow mode; the first half shaft gears are arranged in the first shell and are sleeved on the output shaft in an empty mode, and the first half shaft gears are arranged at intervals along the axial direction of the output shaft; the second half-shaft gear is arranged in the first shell and meshed with the first half-shaft gear, and the input shaft is in transmission connection with the second half-shaft gear; the third half-shaft gear is arranged in the first shell and meshed with the first half-shaft gear, and the first transmission shaft is in transmission connection with the second half-shaft gear; wherein the second side gear transmits power to the third side gear through the first side gear.
According to some embodiments of the invention, the rotational axes of the output shaft and the rotational axes of the plurality of first half-shaft gears coincide and extend in the width direction of the vehicle; the rotational axis of the input shaft, the rotational axis of the first propeller shaft, the rotational axis of the second side gear, and the rotational axis of the third side gear coincide and extend in the longitudinal direction of the vehicle.
According to some embodiments of the invention, the drive axle further comprises: the first differential mechanism is rotatably arranged on the axle housing and is in transmission connection with the input shaft; the second transmission shaft is arranged on the axle housing and is respectively in transmission connection with the first differential and the half-axle gear set, and the input shaft transmits power to the first transmission shaft through the first differential, the second transmission shaft and the half-axle gear set; the transmission gear set is arranged on the axle housing and is respectively in transmission connection with the first differential and the output shaft, and the input shaft transmits power to the first transmission shaft through the first differential and the transmission gear set.
According to some embodiments of the invention, the first differential comprises: the second shell is rotatably arranged on the axle housing and is in transmission connection with the input shaft, and a first rotating shaft perpendicular to the second transmission shaft is arranged in the second shell; the fourth half-shaft gear is rotatably arranged in the second shell and is in transmission connection with the second transmission shaft; the fifth half-shaft gear is rotatably arranged in the second shell and is in transmission connection with the transmission gear set, and the fifth half-shaft gear is sleeved on the second transmission shaft in a hollow mode; the first planet gears are rotatably arranged in the second shell and sleeved on the first rotating shaft, and the first planet gears are respectively meshed with the fourth side gear and the fifth side gear.
According to some embodiments of the invention, the drive gear set comprises: the first bevel gear is in transmission connection with the first differential mechanism, and the central axis of the first bevel gear, the central axis of the second transmission shaft and the central axis of the input shaft are coincident; the second helical gear is in transmission connection with the output shaft and meshed with the first helical gear, and the central axis of the second helical gear coincides with the central axis of the output shaft and is perpendicular to the central axis of the first helical gear.
According to some embodiments of the invention, the central axis of the first helical gear and the central axis of the second helical gear lie in the same plane.
According to some embodiments of the invention, the first helical gear is sleeved on the second transmission shaft in a hollow manner and is provided with a transmission shaft lever, and the transmission shaft lever is sleeved on the second transmission shaft in a hollow manner and extends into the second shell to be connected with the fifth side gear; the second bevel gear and the half-shaft gear set are arranged at intervals along the axial direction of the output shaft.
According to some embodiments of the invention, the drive axle further comprises: the second differential mechanism is rotatably arranged on the axle housing and is in transmission connection with the second bevel gear, the output shaft comprises a first half shaft and a second half shaft, the first half shaft and the second half shaft are suitable for being in transmission connection with different wheels, the half shaft gear set is sleeved on one of the first half shaft and the second half shaft in an empty mode, and the first half shaft and the second half shaft are connected to two opposite sides of the second differential mechanism in the width direction of the vehicle.
According to some embodiments of the invention, the second differential comprises: the third shell is rotatably arranged on the axle housing and is in transmission connection with the second bevel gear, and a second rotating shaft perpendicular to the output shaft is arranged in the third shell; the sixth half-shaft gear is rotatably arranged in the third shell and is in transmission connection with the first half shaft; the seventh half-shaft gear is rotatably arranged in the third shell and is in transmission connection with the second half-shaft; the second planetary gears are rotatably arranged in the third shell and sleeved on the second rotating shaft, and are respectively meshed with the sixth side gear and the seventh side gear.
According to a second aspect of the invention an embodiment is presented of a vehicle comprising a drive axle according to the first aspect of the invention.
The vehicle according to the second aspect of the embodiment of the invention has the advantages of compact structure, large torque, avoidance of inter-axle interference, and the like by using the transaxle according to the first aspect of the embodiment of the invention.
Additional aspects and advantages of the invention 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 invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention 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 schematic diagram of a transaxle according to an embodiment of the present invention.
Fig. 2 is a schematic view of the positions of a first helical gear and a second helical gear according to an embodiment of the present invention.
Reference numerals:
a drive axle 1,
Axle housing 100, input shaft 200,
An output shaft 300, a first half shaft 310, a second half shaft 320,
A side gear set 400, a first housing 410, a first side gear 420, a second side gear 430, a third side gear 440,
A first transmission shaft 500, a second transmission shaft 510,
The first differential 600, the second casing 610, the first rotation shaft 611, the fourth side gear 620, the fifth side gear 630, the first planetary gear 640,
A drive gear set 700, a first bevel gear 710, a second bevel gear 720, a drive shaft 730,
A second differential 800, a third housing 810, a second rotational shaft 811, a sixth side gear 820, a seventh side gear 830, and a second planetary gear 840.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, 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", "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 invention and to simplify 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 invention.
In the description of the invention, a "first feature" or "second feature" may include one or more of such features.
In the description of the invention, "a plurality" means two or more, and "a number" means one or more.
A transaxle 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 and 2, a transaxle 1 according to an embodiment of the present invention includes an axle housing 100, an input shaft 200, an output shaft 300, a side gear set 400, and a first transmission shaft 500.
The input shaft 200 is rotatably mounted on the axle housing 100, the output shaft 300 is rotatably mounted on the axle housing 100 and is in transmission connection with the input shaft 200, the output shaft 300 is suitable for being connected with wheels, the half-axle gear set 400 is mounted in the axle housing 100 and is sleeved on the output shaft 300, the half-axle gear set 400 is in transmission connection with the input shaft 200, the first transmission shaft 500 is rotatably mounted on the axle housing 100 and is in transmission connection with the half-axle gear set 400, and the input shaft 200 transmits power to the first transmission shaft 500 through the transmission gear set 700; wherein the input shaft 200, the output shaft 300 and the first transmission shaft 500 are located on the same plane.
That is, the drive axle 1 in the embodiment of the present invention may be a tandem drive axle, where the input shaft 200 transmits power to the output shaft 300 and drives the wheels to rotate through the output shaft 300, and meanwhile, the drive axle may also transmit power to the other output shaft 300 through the first transmission shaft 500, and further drive the other wheels to rotate through the other output shaft 300. For example, the output shaft 300 may be a drive shaft of a center axle, and the first transmission shaft 500 may transmit power to a drive shaft of a rear axle.
According to the transaxle 1 of the embodiment of the present invention, by rotatably mounting the input shaft 200 to the axle housing 100, and rotatably mounting the output shaft 300 to the axle housing 100 and in driving connection with the input shaft 200, the output shaft 300 is adapted to be connected with the wheels, so that the driving force of the vehicle can be transmitted to the transaxle 1 through the input shaft 200, thereby driving the output shaft 300 to rotate through the input shaft 200, and transmitting the driving force to the wheels through the output shaft 300, thereby driving the vehicle to normally run.
In addition, the axle gear set 400 is installed in the axle housing 100 and is empty to the output shaft 300, the axle gear set 400 is in driving connection with the input shaft 200, the first driving shaft 500 is rotatably installed in the axle housing 100 and in driving connection with the axle gear set 400, the input shaft 200 transmits power to the first driving shaft 500 through the driving gear set 700, and thus, the output shaft 300 can rotate relative to the axle gear set 400, so that rotation of the axle gear set 400 and rotation of the output shaft 300 can not interfere with each other, the output shaft 300 can normally rotate to transmit power to wheels, and the input shaft 200 can transmit power to the first driving shaft 500 through the axle gear set 400.
Moreover, the input shaft 200, the output shaft 300 and the first transmission shaft 500 are located on the same plane, it is understood that the input shaft 200 may be disposed on one side of the side gear set 400, and the first transmission shaft 500 may be disposed on the other side of the side gear set 400, that is, the input shaft 200 and the first transmission shaft 500 may be disposed on two diametrically opposite sides of the output shaft 300, so that the central axis of the input shaft 200, the central axis of the output shaft 300 and the central axis of the first transmission shaft 500 may be located on the same plane, and the position interference between the input shaft 200 and the first transmission shaft 500 and the output shaft 300 is avoided, so that the structural arrangement of the input shaft 200, the first transmission shaft 500 and the output shaft 300 in the radial direction (i.e., the up-down direction) of the output shaft 300 may be more compact, the size of the driving axle 1 may be reduced, the structure of the driving axle 1 may be more compact, and the diameter of the input shaft 200, the diameter of the first transmission shaft 500 and the diameter of the output shaft 300 may be set larger, which may be beneficial to improve the torque of the driving axle 1, and the maximum driving force of the driving axle 1 may be larger, and the driving performance may be stronger.
Thus, the drive axle 1 according to the embodiment of the invention has the advantages of compact structure, large torque, avoidance of inter-axle interference, and the like.
In some specific embodiments of the present invention, as shown in FIG. 1, the side gear set 400 includes a first housing 410, a plurality of first side gears 420, a second side gear 430, and a third side gear 440.
The first casing 410 is connected with the axle housing 100 and has a fixed relative position, the first casing 410 is sleeved in the output shaft 300 and the first transmission shaft 500, the first half-shaft gears 420 are arranged in the first casing 410 and sleeved in the output shaft 300, a plurality of first half-shaft gears 420 are arranged at intervals along the axial direction of the output shaft 300, the second half-shaft gears 430 are arranged in the first casing 410 and meshed with the first half-shaft gears 420, the input shaft 200 is in transmission connection with the second half-shaft gears 430, the third half-shaft gears 440 are arranged in the first casing 410 and meshed with the first half-shaft gears 420, and the first transmission shaft 500 is in transmission connection with the second half-shaft gears 430; wherein the second side gear 430 transmits power to the third side gear 440 through the first side gear 420.
In this way, the first casing 410 may cover the plurality of first, second and third side gears 420, 430 and 440, thereby preventing the first, second and third side gears 420, 430 and 440 from interfering with other components of the drive axle 1, and facilitating protection of the side gear set 400.
Specifically, the first housing 410 is fixed to the axle housing 100, the first housing 410 is fixed to the output shaft 300 and the first transmission shaft 500, the output shaft 300 and the first transmission shaft 500 may rotate relative to the housing, the first side gear 420 may rotate relative to the output shaft 300 along the rotation axis thereof, so that the first side gear 420 and the output shaft 300 may not transmit power to each other, and the rotation of the first side gear 420 and the output shaft 300 may not interfere, and simultaneously, the second side gear 430 and the third side gear 440 may rotate about their rotation axes, thereby, the power of the input shaft 200 may be transmitted to the plurality of first side gears 420 through the second side gear 430, and may further be transmitted to the third side gear 440 through the plurality of first side gears 420, the third side gear 440 may rotate to drive the first transmission shaft 500, and may transmit the power to the driving shaft of the rear axle through the first transmission shaft 500, so as to achieve the power transmission of the input shaft 200 to the rear axle.
In addition, the input shaft 200 may be engaged with one side of the first half shaft gear 420 through the second half shaft gear 430, the first driving shaft 500 may be engaged with the other side of the first half shaft gear 420 through the third half shaft gear 440, and the input shaft 200 and the first driving shaft 500 may be located at diametrically opposite sides of the output shaft 300, respectively, and even though the input shaft 200, the first driving shaft 500 and the output shaft 300 are located in the same plane, the input shaft 200, the first driving shaft 500 and the output shaft 300 may not be inter-shaft interfered, thereby facilitating the layout of the transaxle 1.
In some embodiments of the present invention, as shown in fig. 1, the rotational axis of the output shaft 300 and the rotational axes of the plurality of first side gears 420 coincide and extend in the width direction of the vehicle, and the rotational axis of the input shaft 200, the rotational axis of the first transmission shaft 500, the rotational axis of the second side gear 430, and the rotational axis of the third side gear 440 coincide and extend in the length direction of the vehicle.
The rotation axis of the output shaft 300 is extended along the width direction of the vehicle, that is, along the left and right directions of the vehicle, so that the output shaft 300 is convenient to transmit power to the wheels on the left and right sides of the vehicle to drive the wheels to rotate, and the rotation axes of the plurality of first half-shaft gears 420 are also extended along the width direction of the vehicle, so that the first half-shaft gears 420 are convenient to be sleeved on the output shaft 300, the first half-shaft gears 420 can rotate relative to the output shaft 300, and rotation interference between the first half-shaft gears 420 and the output shaft 300 is avoided.
In addition, the input shaft 200 and the first transmission shaft 500 extend in the longitudinal direction of the vehicle, that is, in the front-rear direction of the vehicle, which facilitates the input shaft 200 and the first transmission shaft 500 to transmit power to different axles of the vehicle, for example, a center axle and a rear axle, and the rotation axis of the second side gear 430 and the rotation axis of the third side gear 440 coincide and extend in the longitudinal direction of the vehicle, which facilitates the power transmission of the input shaft 200 and the second side gear 430, and facilitates the connection of the first transmission shaft 500 and the third side gear 440 for power transmission, so that the layout inside the transaxle 1 is more reasonable and compact, so that the power transmission path of the transaxle 1 is simpler while also facilitating the simplification of the structure of the transaxle 1, and the volume of the transaxle 1 is smaller.
In some embodiments of the present invention, as shown in FIG. 1, drive axle 1 further includes a first differential 600, a second drive shaft 510, and a drive gear set 700.
The first differential gear 600 is rotatably arranged on the axle housing 100 and is in transmission connection with the input shaft 200, the second transmission shaft 510 is arranged on the axle housing 100 and is respectively in transmission connection with the first differential gear 600 and the half-shaft gear set 400, the input shaft 200 transmits power to the first transmission shaft 500 through the first differential gear 600, the second transmission shaft 510 and the half-shaft gear set 400, the transmission gear set 700 is arranged on the axle housing 100 and is respectively in transmission connection with the first differential gear 600 and the output shaft 300, and the input shaft 200 transmits power to the first transmission shaft 500 through the first differential gear 600 and the transmission gear set 700.
That is, the power of the input shaft 200 may be sequentially transmitted to the rear axle of the vehicle through the first differential 600, the second drive shaft 510, the side gear set 400 and the first drive shaft 500, and the power of the input shaft 200 may be transmitted to the output shaft 300, that is, the middle axle of the vehicle through the first differential 600 and the drive gear set 700, so that the side gear set 400 may avoid the inter-axle interference of the first drive shaft 500 and the output shaft 300 and the inter-axle interference of the second drive shaft 510 and the output shaft 300, and the first differential 600 may implement differential transmission of the two power transmission paths, thereby implementing differential rotation of the middle axle and the rear axle of the vehicle, so that the vehicle may normally run, and idle or slip of the middle axle or the rear axle may be avoided.
Further, as shown in fig. 1, the first differential 600 includes a second housing 610, a fourth side gear 620, a fifth side gear 630, and a plurality of first planet gears 640.
The second casing 610 is rotatably disposed in the axle housing 100 and is in driving connection with the input shaft 200, the second casing 610 is provided with a first rotating shaft 611 perpendicular to the second transmission shaft 510, the fourth side gear 620 is rotatably disposed in the second casing 610 and is in driving connection with the second transmission shaft 510, the fifth side gear 630 is rotatably disposed in the second casing 610 and is in driving connection with the transmission gear set 700, the fifth side gear 630 is sleeved on the second transmission shaft 510, the plurality of first planet gears 640 are rotatably disposed in the second casing 610 and are sleeved on the first rotating shaft 611, and the first planet gears 640 are respectively meshed with the fourth side gear 620 and the fifth side gear 630.
For example, the rotation axis of the second housing 610 may be coincident with the rotation axis of the input shaft 200, and the central axis of the first rotation shaft 611 is perpendicular to the rotation axis of the second housing 610, so that the input shaft 200 may drive the second housing 610 to rotate, and the second housing 610 may drive the plurality of first planetary gears 640 to revolve around the rotation axis of the second housing 610 through the first rotation shaft 611, and at the same time, the first planetary gears 640 may also rotate around the central axis of the first rotation shaft 611.
Thus, the first differential 600 can push the fourth and fifth side gears 620 and 630 to rotate by revolution of the first planetary gears 640 about the rotation axis of the second housing 610, and thus can transmit power to the output shaft 300 through the fourth side gear 620 and transmit power to the drive shaft of the rear axle through the fifth side gear 630, and when the first planetary gears 640 rotate while revolving, the fourth and fifth side gears 620 and 630 can perform differential rotation, so that differential transmission of the first differential 600 to the intermediate and rear axles can be achieved, and differential rotation of the intermediate and rear axles can be achieved.
In some embodiments of the present invention, as shown in FIG. 1, a drive gear set 700 includes a first bevel gear 710 and a second bevel gear 720.
The first bevel gear 710 is in driving connection with the first differential 600, the central axis of the first bevel gear 710, the central axis of the second transmission shaft 510 and the central axis of the input shaft 200 coincide, the second bevel gear 720 is in driving connection with the output shaft 300 and meshed with the first bevel gear 710, and the central axis of the second bevel gear 720 coincides with the central axis of the output shaft 300 and is perpendicular to the central axis of the first bevel gear 710.
Specifically, the first helical gear 710 and the fifth helical gear 630 are drivingly connected such that the power of the input shaft 200 can be transmitted to the first helical gear 710 and the second helical gear 720 through the fifth helical gear 630, and the output shaft 300 is driven to rotate through the second helical gear 720, wherein by the cooperation of the first helical gear 710 and the second helical gear 720, the rotation about the central axis of the input shaft 200 can be converted into the rotation about the central axis of the output shaft 300, and thus the output shaft 300 can be driven to rotate about the rotation axis in the width direction of the vehicle, and thus the wheels can be driven to rotate, and the vehicle runs normally.
In some embodiments of the present invention, as shown in fig. 1, the first bevel gear 710 is sleeved on the second transmission shaft 510 and is provided with a transmission shaft lever 730, and the transmission shaft lever 730 is sleeved on the second transmission shaft 510 and extends into the second housing 610 to be connected with the fifth side gear 630, so that the first bevel gear 710 and the fifth side gear 630 can be connected through the transmission shaft lever 730, so that the first bevel gear 710 and the fifth side gear 630 can rotate synchronously, and the first bevel gear 710 does not extend into the second housing 610 completely, which is beneficial to reducing the volume of the second housing 610 and avoiding interference between the second housing 610 and the first bevel gear 710.
In addition, the second helical gear 720 and the half-shaft gear set 400 are arranged along the axial direction of the output shaft 300 at intervals, so that the second helical gear 720 does not interfere with the first casing 410 of the half-shaft gear set 400, friction between the second helical gear 720 and the first casing 410 during rotation is avoided, the layout of the drive axle 1 is more reasonable, and the rotation resistance of the second helical gear 720 is smaller.
In some embodiments of the present invention, as shown in FIG. 2, the central axis of the first helical gear 710 and the central axis of the second helical gear 720 lie in the same plane.
It can be appreciated that, after the first bevel gear 710 is sleeved on the second transmission shaft 510 and the second bevel gear 720 is sleeved on the output shaft 300, and the central axis of the first transmission shaft 500, the central axis of the second transmission shaft 510 and the central axis of the output shaft 300 are disposed in the same plane by disposing the half-axis gear set 400, the central axes of the first bevel gear 710 and the second bevel gear 720 can also be disposed in the same plane.
That is, the first helical gear 710 and the second helical gear 720 may have no offset distance, so that efficiency loss caused by tooth surface sliding in the transmission process of the first helical gear 710 and the second helical gear 720 may be effectively avoided, which is beneficial to improving transmission efficiency of the drive axle 1, reducing failure probability such as tooth surface pitting, and being beneficial to prolonging service lives of the first helical gear 710 and the second helical gear 720.
In some embodiments of the present invention, as shown in fig. 1, transaxle 1 further includes a second differential 800.
The second differential 800 is rotatably provided to the axle housing 100 and is in driving connection with the second bevel gear 720, the output shaft 300 includes a first half shaft 310 and a second half shaft 320, the first half shaft 310 and the second half shaft 320 are adapted to be in driving connection with different wheels, the half-shaft gear set 400 is blank to one of the first half shaft 310 and the second half shaft 320, and the first half shaft 310 and the second half shaft 320 are connected to opposite sides of the second differential 800 in the width direction of the vehicle.
That is, the power transmitted from the input shaft 200 to the second bevel gear 720 may be sequentially transmitted to the wheels on one side of the output shaft 300 through the second differential 800 and the first half shaft 310, and the power transmitted from the input shaft 200 to the second bevel gear 720 may be transmitted to the wheels on the other side of the output shaft 300 through the second differential 800 and the second half shaft 320, so that the second differential 800 may realize differential transmission of the two power transmission paths, and further realize differential rotation of the wheels on both sides of the output shaft 300, so that the vehicle may normally turn, and idle running of the wheels on one side may be avoided when the vehicle runs on a pothole road, thereby preventing the vehicle from slipping.
Further, as shown in fig. 1, the second differential 800 includes a third housing 810, a sixth side gear 820, a seventh side gear 830, and a plurality of second planetary gears 840.
The third housing 810 is rotatably disposed in the axle housing 100 and is in driving connection with the second helical gear 720, a second rotation shaft 811 perpendicular to the output shaft 300 is disposed in the third housing 810, the sixth side gear 820 is rotatably disposed in the third housing 810 and is in driving connection with the first half shaft 310, the seventh side gear 830 is rotatably disposed in the third housing 810 and is in driving connection with the second half shaft 320, a plurality of second planetary gears 840 are rotatably disposed in the third housing 810 and are sleeved on the second rotation shaft 811, and the second planetary gears 840 are respectively engaged with the sixth side gear 820 and the seventh side gear 830.
Specifically, the rotation axis of the third housing 810 may coincide with the rotation axis of the output shaft 300, and the central axis of the second rotation shaft 811 is perpendicular to the rotation axis of the third housing 810, so that the second helical gear 720 may drive the third housing 810 to rotate around the rotation axis of the output shaft 300, and the third housing 810 may drive the plurality of second planetary gears 840 to revolve around the rotation axis of the output shaft 300 through the second rotation shaft 811, and at the same time the second planetary gears 840 may also rotate around the central axis of the second rotation shaft 811.
Thus, the second differential 800 may rotate the sixth and seventh side gears 820 and 830 by the revolution of the second planetary gears 840 around the rotational axis of the output shaft 300, and thus may transmit power to the first half shaft 310 through the sixth side gear 820 and transmit power to the second half shaft 320 through the seventh side gear 830, and when the second planetary gears 840 revolve while rotating, the sixth and seventh side gears 820 and 830 may perform differential rotation, thereby achieving differential transmission of the second differential 800 to the first and second half shafts 310 and 320, so as to achieve differential rotation of the wheels on the left and right sides of the output shaft 300, so that the vehicle may normally turn, and avoid idle rotation of one side wheel when the vehicle runs in a pothole road, thereby avoiding slip of the vehicle.
A vehicle according to an embodiment of the present invention, which includes the transaxle 1 according to the above-described embodiment of the present invention, will be described below with reference to the drawings.
The vehicle according to the embodiment of the invention has the advantages of compact structure, large torque, avoidance of inter-axle interference, and the like by using the transaxle 1 according to the above embodiment of the invention.
Other constructions and operations of the transaxle 1 and the vehicle having the same according to the embodiment of the present invention are known to those of ordinary skill in the art, and will not be described in detail herein.
In the description herein, reference to the term "particular embodiment," "particular example," 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention 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 invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A drive axle, comprising:
a bridge housing;
the input shaft is rotatably mounted on the axle housing;
the output shaft is rotatably mounted on the axle housing and is in transmission connection with the input shaft, and the output shaft is suitable for being connected with wheels;
the half-shaft gear set is arranged in the axle housing and is sleeved on the output shaft in an empty mode, and the half-shaft gear set is in transmission connection with the input shaft;
the first transmission shaft is rotatably arranged on the axle housing and is in transmission connection with the half-axle gear set, and the input shaft transmits power to the first transmission shaft through the transmission gear set;
wherein the input shaft, the output shaft and the first transmission shaft are located on the same plane.
2. The drive axle of claim 1 wherein said side gear set comprises:
the first shell is connected with the axle housing and is fixed in relative position, and the first shell is sleeved with the output shaft and the first transmission shaft in a hollow mode;
the first half shaft gears are arranged in the first shell and are sleeved on the output shaft in an empty mode, and the first half shaft gears are arranged at intervals along the axial direction of the output shaft;
the second half-shaft gear is arranged in the first shell and meshed with the first half-shaft gear, and the input shaft is in transmission connection with the second half-shaft gear;
the third half-shaft gear is arranged in the first shell and meshed with the first half-shaft gear, and the first transmission shaft is in transmission connection with the second half-shaft gear;
wherein the second side gear transmits power to the third side gear through the first side gear.
3. The transaxle of claim 2 wherein the rotational axis of the output shaft and the rotational axes of the plurality of first half-shaft gears coincide and extend in the width direction of the vehicle;
the rotational axis of the input shaft, the rotational axis of the first propeller shaft, the rotational axis of the second side gear, and the rotational axis of the third side gear coincide and extend in the longitudinal direction of the vehicle.
4. The drive axle of claim 1, further comprising:
the first differential mechanism is rotatably arranged on the axle housing and is in transmission connection with the input shaft;
the second transmission shaft is arranged on the axle housing and is respectively in transmission connection with the first differential and the half-axle gear set, and the input shaft transmits power to the first transmission shaft through the first differential, the second transmission shaft and the half-axle gear set;
the transmission gear set is arranged on the axle housing and is respectively in transmission connection with the first differential and the output shaft, and the input shaft transmits power to the first transmission shaft through the first differential and the transmission gear set.
5. The drive axle of claim 4 wherein said first differential comprises:
the second shell is rotatably arranged on the axle housing and is in transmission connection with the input shaft, and a first rotating shaft perpendicular to the second transmission shaft is arranged in the second shell;
the fourth half-shaft gear is rotatably arranged in the second shell and is in transmission connection with the second transmission shaft;
the fifth half-shaft gear is rotatably arranged in the second shell and is in transmission connection with the transmission gear set, and the fifth half-shaft gear is sleeved on the second transmission shaft in a hollow mode;
the first planet gears are rotatably arranged in the second shell and sleeved on the first rotating shaft, and the first planet gears are respectively meshed with the fourth side gear and the fifth side gear.
6. The drive axle of claim 5 wherein said drive gear set comprises:
the first bevel gear is in transmission connection with the first differential mechanism, and the central axis of the first bevel gear, the central axis of the second transmission shaft and the central axis of the input shaft are coincident;
the second helical gear is in transmission connection with the output shaft and meshed with the first helical gear, and the central axis of the second helical gear coincides with the central axis of the output shaft and is perpendicular to the central axis of the first helical gear.
7. The drive axle of claim 6 wherein the central axis of the first helical gear and the central axis of the second helical gear lie in the same plane.
8. The drive axle of claim 6 wherein said first helical gear is hollow about said second drive shaft and is provided with a drive shaft, said drive shaft being hollow about said second drive shaft and extending into said second housing for connection with said fifth side gear;
the second bevel gear and the half-shaft gear set are arranged at intervals along the axial direction of the output shaft.
9. The drive axle of claim 6, further comprising:
the second differential mechanism is rotatably arranged on the axle housing and is in transmission connection with the second bevel gear, the output shaft comprises a first half shaft and a second half shaft, the first half shaft and the second half shaft are suitable for being in transmission connection with different wheels, the half shaft gear set is sleeved on one of the first half shaft and the second half shaft in an empty mode, and the first half shaft and the second half shaft are connected to two opposite sides of the second differential mechanism in the width direction of the vehicle.
10. The drive axle of claim 9 wherein the second differential comprises:
the third shell is rotatably arranged on the axle housing and is in transmission connection with the second bevel gear, and a second rotating shaft perpendicular to the output shaft is arranged in the third shell;
the sixth half-shaft gear is rotatably arranged in the third shell and is in transmission connection with the first half shaft;
the seventh half-shaft gear is rotatably arranged in the third shell and is in transmission connection with the second half-shaft;
the second planetary gears are rotatably arranged in the third shell and sleeved on the second rotating shaft, and are respectively meshed with the sixth side gear and the seventh side gear.
11. A vehicle comprising a drive axle according to any one of claims 1-10.
CN202310118049.6A 2023-02-10 2023-02-10 Driving axle and vehicle with same Pending CN116160852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310118049.6A CN116160852A (en) 2023-02-10 2023-02-10 Driving axle and vehicle with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310118049.6A CN116160852A (en) 2023-02-10 2023-02-10 Driving axle and vehicle with same

Publications (1)

Publication Number Publication Date
CN116160852A true CN116160852A (en) 2023-05-26

Family

ID=86421542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310118049.6A Pending CN116160852A (en) 2023-02-10 2023-02-10 Driving axle and vehicle with same

Country Status (1)

Country Link
CN (1) CN116160852A (en)

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