CN115431745A - Hybrid middle axle speed reducer and vehicle - Google Patents
Hybrid middle axle speed reducer and vehicle Download PDFInfo
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- CN115431745A CN115431745A CN202211228892.1A CN202211228892A CN115431745A CN 115431745 A CN115431745 A CN 115431745A CN 202211228892 A CN202211228892 A CN 202211228892A CN 115431745 A CN115431745 A CN 115431745A
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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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
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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
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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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
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
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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
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
Abstract
The application relates to a hybrid middle axle reduction gear and vehicle, this hybrid middle axle reduction gear includes: the inter-axle differential assembly comprises an input shaft, a first gear, a planetary gear set and a rear bevel gear, wherein the first gear, the planetary gear set and the rear bevel gear are rotatably arranged on the input shaft; the inter-wheel differential is in transmission connection with a first gear; the output end of the fuel driving unit is in transmission connection with the input shaft; the output end of the electric drive unit is in transmission connection with the planetary gear set; wherein, the rear bevel gear is connected with the rear axle of the automobile in a transmission way, and the output shaft of the differential mechanism between the wheels is connected with the middle axle of the automobile in a transmission way. The utility model provides a mix in the axle reduction gear through set up fuel drive unit and electric drive unit simultaneously on the differential mechanism assembly between the axle, can make the car have stronger fuel power when high load state, have the environmental protection performance of preferred when low load state, can guarantee the better transmission efficiency of this mix in the axle reduction gear simultaneously.
Description
Technical Field
The application relates to the technical field of automobile axles, in particular to a hybrid middle axle speed reducer and a vehicle.
Background
The automobile main reducer serves as a core component of a transmission system in an automobile drive axle assembly, the main reducer assembly reduces the speed and increases the torque transmitted by an engine and a gearbox, and then the torque is transmitted to wheels on two sides through a half shaft, and for the middle axle reducer assembly, the responsibility of simultaneously transmitting the torque to a rear axle is additionally increased.
And the transaxle of commercial car on the existing market adopts two bridge drive structures mostly, adopts pure fuel drive or pure electric drive mostly, and pure fuel car is not environmental protection, and the fuel inefficiency, and pure electric vehicle's dynamic is relatively weak.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the embodiment of the application provides a hybrid middle axle speed reducer and a vehicle, so that the vehicle has stronger fuel power in a high load state, has better environmental protection performance in a low load state, and can ensure better transmission efficiency.
In a first aspect, the present application provides a hybrid intermediate axle retarder, comprising:
the inter-axle differential assembly comprises an input shaft, a first gear, a planetary gear set and a rear bevel gear, wherein the first gear, the planetary gear set and the rear bevel gear are rotatably arranged on the input shaft, and the planetary gear set is in transmission connection with the first gear and the rear bevel gear respectively;
the inter-wheel differential is in transmission connection with the first gear;
the output end of the fuel driving unit is in transmission connection with the input shaft;
the output end of the electric drive unit is in transmission connection with the planetary gear set;
the rear bevel gear is in transmission connection with a rear axle of an automobile, and an output shaft of the inter-wheel differential is in transmission connection with a middle axle of the automobile.
According to the hybrid middle axle speed reducer of the first aspect of the application, at least the following beneficial effects are achieved:
according to the hybrid middle axle speed reducer, the fuel oil driving unit and the electric driving unit are arranged, and the fuel oil driving unit and the electric driving unit are respectively in transmission connection with the input shaft and the planetary gear set of the inter-axle differential assembly, so that fuel oil power and electric driving power are respectively provided for automobile running through the fuel oil driving unit and the electric driving unit.
When the automobile runs under a low load state, the fuel oil driving unit is closed, the electric driving unit is started, the electric driving unit transmits power to the planetary gear set of the inter-axle differential assembly, the planetary gear set further transfers the power to the first gear and the rear bevel gear, the first gear can transmit the power to the inter-wheel differential, the inter-wheel differential transmits the power to the middle axle of the automobile, the rear bevel gear transmits the power to the rear axle of the automobile, and the power driving of the middle axle and the rear axle of the automobile is achieved.
When the automobile runs under a high load state, the electric drive unit is turned off, the fuel drive unit is turned on, the fuel drive unit transmits power to an input shaft of the interaxle differential assembly, the input shaft rotates to drive the planetary gear set to move, similarly, the planetary gear set can transfer the power to the first gear and the rear bevel gear, the first gear can transmit the power to the interaxle differential, the interaxle differential transmits the power to a middle axle of the automobile, and the rear bevel gear transmits the power to a rear axle of the automobile, so that the power drive of the middle axle and the rear axle of the automobile is realized.
The utility model provides a mix middle axle reduction gear through set up fuel drive unit and electric drive unit simultaneously on the differential mechanism assembly between the axle, can make the car have stronger fuel power when high load state, have the feature of environmental protection of preferred when low load state, simultaneously through setting up corresponding first gear, planetary gear set and back bevel gear, can guarantee the better transmission efficiency of this mix middle axle reduction gear.
In some embodiments, the electric drive unit comprises an electric drive and a second gear provided at an output end of the electric drive, the second gear being in meshing connection with the planetary gear set.
In some embodiments, the planetary gear set includes a planet carrier disposed on the input shaft, a plurality of planetary gears disposed along a circumferential direction of the planet carrier, and a second gear sleeved on the planet carrier, and the second gear is in meshing connection with an output end of the electric drive unit.
In some embodiments, the first gear and the side of the rear bevel gear facing the planet carrier are provided with driven conical teeth, and the planet gears are respectively meshed with the driven conical teeth of the first gear and the driven conical teeth of the rear bevel gear.
In some embodiments, the axis of the planet gear is perpendicular to the axis of the input shaft.
In some embodiments, the inner wall of the planet carrier is provided with a plurality of gear shafts along the circumferential direction, and the planet gears are rotatably mounted on the planet carrier through the corresponding gear shafts.
In some embodiments, the outer wall and the inner wall of the planet carrier are respectively provided with a limiting through hole and a limiting blind hole, and two ends of the gear shaft penetrate through the limiting through hole and are respectively abutted against the inner wall of the second gear and the limiting blind hole.
In some embodiments, the inner peripheral wall of the second gear is in welded fit with the outer peripheral wall of the planet carrier.
In some embodiments, the inter-wheel differential is in transmission connection with the first gear through a transmission gear set, the transmission gear set includes a transmission shaft, a third gear rotatably disposed on the transmission shaft, and a bevel gear pair, the third gear is in meshing connection with the first gear, and the bevel gear pair is in transmission connection with the inter-wheel differential.
In a second aspect, the present application provides a vehicle comprising a hybrid transaxle retarder as described above.
According to the vehicle of the second aspect of the application, at least the following advantages are achieved:
the vehicle of this application owing to have foretell hybrid middle axle reduction gear, consequently also possesses the same beneficial effect that above-mentioned hybrid middle axle reduction gear brought, can make the car have stronger fuel power when high load state promptly, has the environmental protection performance of preferred when low load state, simultaneously through setting up corresponding first gear, planetary gear set and back bevel gear, can guarantee the better transmission efficiency of this hybrid middle axle reduction gear.
The above description is only an overview of the technical solutions of the present application, and the present application may be implemented in accordance with the content of the description so as to make the technical means of the present application more clearly understood, and the detailed description of the present application will be given below in order to make the above and other objects, features, and advantages of the present application more clearly understood.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:
FIG. 1 is a schematic structural diagram of a hybrid intermediate axle retarder according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of a hybrid intermediate axle speed reducer according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of the planetary gear set of the embodiment of the present application;
FIG. 4 is an exploded view of the planetary gear set of the present embodiment;
FIG. 5 is a schematic diagram of a structure of a drive gear set and an inter-wheel differential according to an embodiment of the present disclosure.
Wherein: an electric drive unit 100; an electric drive 110; a second gear 120; an inter-axle differential assembly 200; an input shaft 210; a first gear 220; a planetary gear set 230; a carrier 231; a planetary gear 232; a second gear 233; a gear shaft 234; a limiting through hole 235; a blind limit hole 236; a rear bevel gear 240; an inter-wheel differential 300; a drive gear set 400; a drive shaft 410; a third gear 420; bevel gear pair 430.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing the association object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used for convenience in describing the embodiments of the present application and for simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
Referring to fig. 1 and 2, the present application provides a hybrid mid-axle retarder including an inter-axle differential assembly 200, an inter-wheel differential 300, a fuel drive unit, and an electric drive unit 100.
The inter-axle differential assembly 200 includes an input shaft 210, a first gear 220 rotatably disposed on the input shaft 210, a planetary gear set 230, and a rear bevel gear 240, wherein the planetary gear set 230 is in transmission connection with the first gear 220 and the rear bevel gear 240, respectively.
An inter-wheel differential 300 is drivingly connected to the first gear 220. The output end of the fuel drive unit is in transmission connection with the input shaft 210, the output end of the electric drive unit 100 is in transmission connection with the planetary gear set 230, the rear bevel gear 240 is in transmission connection with a rear axle of an automobile, and the output shaft of the inter-wheel differential 300 is in transmission connection with a middle axle of the automobile.
In the inter-axle differential assembly 200, the first gear 220 is preferably a cylindrical gear, and the first gear 220 is preferably engaged with the input shaft 210 in a shaft hole manner, for example, the first gear 220 is rotatably mounted on the input shaft 210 through a bearing, so that the first gear 220 can rotate around the input shaft 210. Similarly, the rear bevel gear 240 is preferably engaged with the input shaft 210 in a shaft-hole manner, for example, the rear bevel gear 240 is rotatably mounted on the input shaft 210 through a bearing, so that the rear bevel gear 240 can rotate around the input shaft 210. In addition, the planetary gear set 230 is engaged with the input shaft 210 by a spline connection, that is, a spline hole disposed in the middle of the planetary gear set 230 is engaged with a spline shaft disposed on the input shaft 210, so that the input shaft 210 can drive the planetary gear set 230 to rotate.
The fuel driving unit is a fuel engine assembly of the automobile and provides fuel power for the automobile. The electric drive unit 100 is a drive motor, and a battery in the automobile is a power source of the electric drive unit 100. The rear bevel gear 240 is in transmission connection with a through shaft of the rear axle of the automobile in a spline connection manner, and then transmits power to wheels of the rear axle of the automobile.
The inter-wheel differential 300 is a conventional inter-wheel differential installed on a middle axle of an automobile, and an output shaft of the inter-wheel differential 300 includes two half shafts arranged at two sides of the inter-wheel differential 300, that is, the inter-wheel differential 300 is respectively in transmission connection with the middle axle of the automobile through the two half shafts thereon, so as to transmit power to wheels at two sides of the middle axle of the automobile.
It should be understood that the hybrid middle axle reducer of the present application provides fuel power and electric drive power for vehicle driving through the fuel drive unit and the electric drive unit 100, respectively, by providing the fuel drive unit and the electric drive unit 100, and by driving the fuel drive unit and the electric drive unit 100 to connect the input shaft 210 of the inter-axle differential assembly 200 and the planetary gear set 230, respectively.
When the automobile runs under a low load state, the fuel driving unit is turned off, the electric driving unit 100 is turned on, the electric driving unit 100 transmits power to the planetary gear set 230 of the inter-axle differential assembly 200, the planetary gear set 230 further transfers the power to the first gear 220 and the rear bevel gear 240, the first gear 220 can transmit the power to the inter-wheel differential 300, the inter-wheel differential 300 transmits the power to the middle axle of the automobile, and the rear bevel gear 240 transmits the power to the rear axle of the automobile, so that the power driving of the middle axle and the rear axle of the automobile is realized.
When the automobile runs under a high load state, the electric drive unit 100 is turned off, the fuel drive unit is turned on, the fuel drive unit transmits power to the input shaft 210 of the inter-axle differential assembly 200, the input shaft 210 rotates to drive the planetary gear set 230 to move, similarly, the planetary gear set 230 can transfer the power to the first gear 220 and the rear bevel gear 240, the first gear 220 can transmit the power to the inter-wheel differential 300, the inter-wheel differential 300 transmits the power to the middle axle of the automobile, and the rear bevel gear 240 transmits the power to the rear axle of the automobile, so that the power drive of the middle axle and the rear axle of the automobile is realized.
According to the hybrid middle axle speed reducer, the fuel driving unit and the electric driving unit 100 are arranged on the inter-axle differential assembly 200 at the same time, so that the automobile has stronger fuel power in a high load state, and has better environmental protection performance in a low load state. Meanwhile, the first gear 220, the planetary gear set 230 and the rear bevel gear 240 are correspondingly arranged on the inter-axle differential assembly 200, so that the better transmission efficiency of the hybrid middle axle speed reducer can be ensured.
Referring to fig. 1 and 2, in some embodiments of the present application, the electric drive unit 100 includes an electric driver 110 and a second gear 120 provided at an output end of the electric driver 110, and the second gear 120 is in meshed connection with the planetary gear set 230.
Specifically, the electric drive unit 100 is a drive motor, and a corresponding power battery is provided in the vehicle to supply power to the drive motor. The second gear 120 is preferably a cylindrical gear, and the second gear 120 is mounted at the output end of the driving motor through a bearing, so that the motion stability of the second gear 120 is ensured. The planetary gear set 230 has a corresponding mating gear in meshing connection with the second gear 120, which ensures a high transmission efficiency between the electric drive unit 100 and the planetary gear set 230.
Therefore, the driving motor can drive the planetary gear set 230 to move through the power of the second gear 120, so as to provide electric driving power for the vehicle wheels, and ensure the environmental protection of the vehicle in a low-load running state.
Referring to fig. 2, 3 and 4, in some embodiments of the present application, the planetary gear set 230 includes a planet carrier 231 disposed on the input shaft 210, a plurality of planet gears 232 rotatably disposed along a circumferential direction of the planet carrier 231, and a second gear 233 sleeved on the planet carrier 231, wherein the second gear 233 is in mesh connection with an output end of the electric drive unit 100.
Specifically, the spline hole has been seted up at planet carrier 231's middle part, have on the input shaft 210 with spline hole complex spline shaft, so, input shaft 210 can drive planet carrier 231 around self rotation.
Similarly, one side of the rear bevel gear 240 facing the planet carrier 231 is also provided with driven conical teeth, and the teeth of one side of the four planet gears 232 far away from the first gear 220 are simultaneously meshed with the driven conical teeth of the rear bevel gear 240.
This application is through evenly setting up four planetary gear 232 that are conical gear at planet carrier 231, compare with holistic cross axle transmission structure on traditional interaxial differential mechanism assembly 200, four planetary gear 232 can the independent operation, mutual noninterference, improve interaxial differential mechanism assembly 200's whole transmission intensity, guarantee simultaneously that the drive power of fuel drive unit or electric drive unit 100 can more stably and evenly transfer to first gear 220 and back bevel gear 240, and then improve the motion stability of car middle axle and rear axle.
In addition, thanks to the fact that the four planetary gears 232 can operate independently and realize power transmission to the corresponding first gear 220 and the corresponding rear bevel gear 240, when a single planetary gear 232 is structurally damaged, the normal rotation of the rest planetary gears 232 can still ensure the normal operation of the first gear 220 and the rear bevel gear 240, and the service life of the whole inter-axle differential assembly 200 and the hybrid middle axle reducer of the application is prolonged.
In addition, according to the present application, the first gear 220 and the rear bevel gear 240 are engaged with the bevel gear of the planetary gear set 230, so that the inter-axle differential assembly 200 has more stable transmission performance during the driving process of the automobile, and the motion stability of the middle axle and the rear axle of the automobile is further improved, thereby improving the stability and the applicability during the driving process of the automobile.
It should be further noted that in the present application, the second gear 233 is sleeved on the planet carrier 231, so that the electric driving unit 100 can drive the planet carrier 231 and the planet gears 232 arranged on the planet carrier 231 to rotate through the second gear 233, and the electric driving unit 100 can be connected only by integrating one second gear 233, thereby realizing electric driving of the vehicle.
Referring to fig. 3 and 4, in some embodiments of the present application, the axis of the planet gear 232 is perpendicular to the axis of the input shaft 210. That is, the planetary gear 232 is a bevel gear at this time, and the central axis of the planetary gear 232 is perpendicular to the central axis of the input shaft 210, so that stability of the planetary gear 232 transmitting power to the first gear 220 and the rear bevel gear 240 on both sides is ensured.
Referring to fig. 4, in some embodiments of the present application, the inner wall of the planet carrier 231 is provided with a plurality of gear shafts 234 along the circumferential direction, and the planet gears 232 are rotatably mounted on the planet carrier 231 through the corresponding gear shafts 234, and in particular, the planet gears 232 are rotatably mounted on the gear shafts 234 through corresponding bearings, so that the planet gears 232 can rotate around the gear shafts 234 to transmit power to the corresponding first gear 220 and the rear bevel gear 240.
In some preferred embodiments, the outer wall and the inner wall of the planet carrier 231 are respectively provided with a limiting through hole 235 and a limiting blind hole 236, and two ends of the gear shaft 234 penetrate through the limiting through hole 235 and respectively abut against the inner wall of the second gear 233 and the limiting blind hole 236. Specifically, planet carrier 231 is the annular, and planet carrier 231 is connected with the strengthening rib including integrative inner ring and the outer loop that sets up between inner ring and the outer loop, guarantees whole planet carrier 231 structural strength and rigidity. The limiting through hole 235 is formed in the peripheral wall of the outer ring, the limiting blind hole 236 is formed in the peripheral wall of the inner ring, the planetary gear 232 is rotatably mounted between the inner ring and the outer ring through the gear shaft 234, the second gear 233 is sleeved on the planet carrier 231, namely, the second gear 233 is sleeved on the peripheral wall of the outer ring of the planet carrier 231, and at this time, two ends of the gear shaft 234 penetrate through the limiting through hole 235 and then abut against the inner wall of the second gear 233 and the limiting blind hole 236 respectively.
It should be noted that, in the present application, the outer wall and the inner wall of the planet carrier 231 are respectively provided with the limiting through hole 235 and the limiting blind hole 236, which facilitates the positioning and installation of the gear shaft 234; meanwhile, two ends of the gear shaft 234 can be abutted to the inner wall of the second gear 233 and the limiting blind hole 236 respectively, so that axial limiting of the gear shaft 234 is achieved, the gear shaft 234 is prevented from deviating to two axial sides of the gear shaft 234 in the rotating process of the planetary gear 232, the transmission stability of the planetary gear 232 is guaranteed, the motion stability of the first gear 220 and the rear bevel gear 240 driven to two sides of the planetary gear 232 is further guaranteed, and the stability and the applicability of the automobile in the driving process are further improved.
Referring to fig. 3 and 4, in some embodiments of the present application, the inner circumferential wall of the second gear 233 is in welded engagement with the outer circumferential wall of the carrier 231.
It should be noted that, by the above arrangement, the second gear 233 and the carrier 231 can be made into an integral structure, and the two rotate synchronously, so as to avoid that the transmission function of the second gear 233 is affected by the relative rotation between the second gear 233 and the carrier 231; meanwhile, an annular welding seam is formed between the inner peripheral wall of the second gear 233 and the outer peripheral wall of the planet carrier 231 in a mode of welding and matching the inner peripheral wall of the second gear 233 and the outer peripheral wall of the planet carrier 231, redundant weight brought by a fixed connection mode of bolts and the like is eliminated, matching of the second gear 233 and the planet carrier 231 is simplified, the whole weight of the inter-axle differential assembly 200 is effectively reduced, and the inter-axle differential assembly 200 integrally has better transmission efficiency.
Referring to fig. 1 and 5, in some embodiments of the present application, the inter-wheel differential 300 is drivingly connected to the first gear 220 through a transmission gear set 400, where the transmission gear set 400 includes a transmission shaft 410, a third gear 420 rotatably disposed on the transmission shaft 410, and a bevel gear pair 430, the third gear 420 is in meshing connection with the first gear 220, and the bevel gear pair 430 is in driving connection with the inter-wheel differential 300.
Specifically, the third gear 420 is preferably a cylindrical gear, the transmission shaft 410 is in splined connection with the third gear 420, one side of the third gear 420, which faces the bevel gear pair 430, is provided with driving bevel teeth, one side of the bevel gear pair 430 is in meshing transmission with the driving bevel teeth on the third gear 420, the bevel gear pair 430 is mounted on the transmission shaft 410 through a bearing, and the inter-wheel differential 300 is correspondingly provided with driven bevel teeth in meshing transmission with the other side of the bevel gear pair 430, so that the first gear 220 can transmit power to the inter-wheel differential 300 through the third gear 420 and the bevel gear pair 430, and then the power is transmitted to the middle axle of the automobile through the inter-wheel differential 300, thereby driving the automobile of the automobile middle axle to move.
According to the transmission gear set 400, the transmission gear set 400 is arranged on the inter-wheel differential mechanism 300 and the inter-axle differential mechanism assembly 200, the transmission gear set 400 is arranged into the transmission shaft 410, the third gear 420 and the bevel gear pair 430 which are in transmission fit with each other, so that the transmission power of the inter-axle differential mechanism assembly 200 is indirectly transmitted to the inter-wheel differential mechanism 300 after being vertically turned, the whole length and the occupied area of the hybrid middle axle speed reducer are effectively reduced, the hybrid middle axle speed reducer is more integrated, and the whole transmission efficiency and the structure strength of the hybrid middle axle speed reducer are indirectly improved.
In addition, the application also provides a vehicle, and the vehicle comprises the hybrid middle axle speed reducer. The vehicle has the hybrid middle axle speed reducer, so the vehicle also has the same beneficial effects brought by the hybrid middle axle speed reducer, namely, the vehicle can have stronger fuel power in a high load state, has better environmental protection performance in a low load state, and meanwhile, the vehicle can ensure better transmission efficiency of the hybrid middle axle speed reducer and improve the stability and the applicability of the vehicle in the driving process by arranging the corresponding first gear 220, the planetary gear set 230 and the rear bevel gear 240.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein, but rather to cover all embodiments falling within the scope of the appended claims.
Claims (10)
1. A hybrid transaxle retarder, comprising:
the inter-axle differential assembly comprises an input shaft, a first gear, a planetary gear set and a rear bevel gear, wherein the first gear, the planetary gear set and the rear bevel gear are rotatably arranged on the input shaft, and the planetary gear set is in transmission connection with the first gear and the rear bevel gear respectively;
the inter-wheel differential is in transmission connection with the first gear;
the output end of the fuel driving unit is in transmission connection with the input shaft;
the output end of the electric drive unit is in transmission connection with the planetary gear set;
the rear bevel gear is in transmission connection with a rear axle of an automobile, and an output shaft of the inter-wheel differential is in transmission connection with a middle axle of the automobile.
2. The hybrid transaxle reducer of claim 1 wherein the electric drive unit includes an electric drive and a second gear disposed at an output end of the electric drive, the second gear being in meshing engagement with the planetary gear set.
3. The hybrid medium axle reducer according to claim 1 or 2, wherein the planetary gear set comprises a planet carrier disposed on the input shaft, a plurality of planetary gears rotatably disposed along a circumferential direction of the planet carrier, and a second gear sleeved on the planet carrier, and the second gear is meshed with an output end of the electric drive unit.
4. The hybrid moving axle reducer according to claim 3, wherein the first gear and the side of the rear bevel gear facing the carrier are each provided with driven conical teeth, and the planetary gears are engaged with the driven conical teeth of the first gear and the driven conical teeth of the rear bevel gear, respectively.
5. The hybrid transaxle reducer of claim 3 wherein an axis of the planet gears is perpendicular to an axis of the input shaft.
6. The hybrid moving axle reducer according to claim 3, wherein the inner wall of the carrier is provided with a plurality of gear shafts along the circumferential direction, and the planetary gears are rotatably mounted to the carrier through the corresponding gear shafts.
7. The hybrid moving axle speed reducer according to claim 6, wherein the outer wall and the inner wall of the planet carrier are respectively provided with a limiting through hole and a limiting blind hole, and two ends of the gear shaft penetrate through the limiting through hole and are respectively abutted against the inner wall of the second gear and the limiting blind hole.
8. The hybrid mid-axle reducer of claim 3, wherein the inner peripheral wall of the second gear is in welded engagement with the outer peripheral wall of the carrier.
9. The hybrid intermediate axle reducer according to claim 1, wherein the inter-wheel differential is drivingly connected to the first gear by a drive gear set, the drive gear set including a drive shaft, a third gear rotatably disposed on the drive shaft, and a bevel gear pair, the third gear being in meshing engagement with the first gear, the bevel gear pair being drivingly connected to the inter-wheel differential.
10. A vehicle comprising a hybrid transaxle retarder of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211228892.1A CN115431745A (en) | 2022-10-08 | 2022-10-08 | Hybrid middle axle speed reducer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211228892.1A CN115431745A (en) | 2022-10-08 | 2022-10-08 | Hybrid middle axle speed reducer and vehicle |
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| Publication Number | Publication Date |
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| CN115431745A true CN115431745A (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211228892.1A Pending CN115431745A (en) | 2022-10-08 | 2022-10-08 | Hybrid middle axle speed reducer and vehicle |
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| CN (1) | CN115431745A (en) |
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