CN114435027B - Two-gear speed-changing multi-shaft output drive axle assembly with inter-axle differential speed - Google Patents
Two-gear speed-changing multi-shaft output drive axle assembly with inter-axle differential speed Download PDFInfo
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- CN114435027B CN114435027B CN202210142573.2A CN202210142573A CN114435027B CN 114435027 B CN114435027 B CN 114435027B CN 202210142573 A CN202210142573 A CN 202210142573A CN 114435027 B CN114435027 B CN 114435027B
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- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 abstract description 8
- 238000012546 transfer Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
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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
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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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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- 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)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses a two-gear speed-changing multi-shaft output drive axle assembly with inter-axle differential, which comprises an input shaft, a middle shaft and a front axle output shaft which are longitudinally arranged in parallel, and provides timely and time-sharing drive functions for a truck chassis; the invention solves the biggest difficult problem that when the traditional transfer case function and the main speed reducer function are integrated on the drive axle assembly in a limited space, the high-low speed requirement of the vehicle running requirement is realized, and the differential function of the inter-axle differential mechanism among the middle axle, the rear axle and the front axle is realized at the same time. The invention provides a more reasonable space arrangement mode for the whole vehicle layout, reduces the dead weight of the vehicle, reduces the cost, is easy to maintain and prolongs the service life of the vehicle.
Description
Technical Field
The invention relates to the technical field of automobile power chassis design, in particular to a multi-shaft output drive axle assembly with two-gear speed change and interaxle differential.
Background
Because of the national automobile industry policy, the dead weight of the whole automobile needs to be reduced, the requirements of the automobile are the same when the automobile is hung and annual inspection is carried out, at the moment, the dead weight of the whole automobile needs to be reduced to meet the requirements, and a part of 6*6 short-shaft automobile cannot be provided with a transfer case, and because the transmission shaft does not have enough expansion and contraction amount after the transfer case is arranged at a short wheelbase, the automobile cannot normally run. Based on the above requirements, in order to realize the full driving function of the automobile without a transfer case, a main speed reducer on an axle is redesigned, and the transfer case function and the main speed reducer are integrated; the biggest difficulty of the design is that the high-low gear shifting function is realized, and the differential function of an inter-axle differential mechanism between the middle and rear axles is realized at the same time; the common design is that the input shaft and the middle shaft of high and low grade are matched with other three shafts (the front axle of the middle axle of the rear axle) to carry out power distribution output, and five shafts are needed to realize transmission. Such designs cannot be used due to limitations in design conditions such as frame width, ground clearance, etc.
Disclosure of Invention
The invention aims to overcome the existing defects, provides a multi-shaft output drive axle assembly with two-gear speed change and inter-shaft differential, and integrates the intermediate shaft and the inter-shaft differential through the mutual correlation design of three shafts, so that the design eliminates a transfer case, reduces the dead weight of a vehicle, reduces multi-stage transmission, directly transmits power to a plurality of drive axles, improves transmission efficiency, saves energy, solves the problem that the vehicle body is short and difficult to arrange, and can effectively solve the problem in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a multi-shaft output drive axle assembly with two-gear speed change and inter-axle differential comprises an input shaft, an intermediate shaft and a front axle output shaft which are longitudinally arranged in parallel;
the input shaft is coaxially rotatably provided with a high-speed gear and a low-speed gear at the outer part, and is coaxially and slidably provided with a high-speed engaging sleeve and a low-speed engaging sleeve which can be independently engaged with the end parts of the high-speed gear and the low-speed gear;
the intermediate shaft is of a differential mechanism structure and comprises a differential mechanism shell, differential mechanism planet gears and output half shafts at two ends, a transmission gear which is respectively meshed with a high-speed gear and a low-speed gear is coaxially and fixedly arranged outside the differential mechanism shell, a first group of output half shafts can directly transmit power to the intermediate shaft and are slidably provided with an inter-shaft differential mechanism meshing sleeve which can be meshed with or separated from the end part of the differential mechanism shell along the axis of the first group of output half shafts, and a second group of output half shafts simultaneously transmit power to the front axle and the rear axle through a gear pair;
the front axle output shaft is coaxially provided with a front axle output gear meshed with the second group of output half shafts in a rotating way, and a front axle output meshing sleeve capable of being meshed with the end part of the front axle output gear is arranged along the axis in a sliding way;
the output half shafts are hollow shafts, driving spiral bevel gear shafts capable of transmitting power to the intermediate axles are coaxially and fixedly arranged in the first group of output half shafts, and the driving spiral bevel gear shafts penetrate through the second group of output half shafts and are coaxially and rotatably arranged with the second group of output half shafts.
As a preferable technical scheme of the invention, the end part of the second group of output half shafts is coaxially and fixedly provided with an idler wheel, the idler wheel is meshed with a front axle output gear, and the front axle output gear is coaxially connected with an oil pump assembly;
through increasing with the oil pump assembly of front axle output gear drive, carry out forced lubrication to each drive pair, guarantee its reliability, and even the front axle power is released in the course of the work, front axle output gear still can carry out forced lubrication.
As a preferable technical scheme of the invention, the invention further comprises a through shaft for transmitting power to the rear axle, wherein the through shaft is overlapped with the axis of the input shaft, a rear axle output end gear is coaxially and fixedly arranged outside, and the rear axle output end gear is meshed with the idler gear.
As a preferable technical scheme of the invention, the end part of the rear axle output end gear and the end part of the input shaft are coaxially and rotatably arranged through a bearing pair, and the end part extension part of the low-speed gear and the end part groove part of the rear axle output end gear are coaxially and rotatably arranged through a gear pair;
through the mounting mode design of the rear axle output end gear, the input shaft and the through shaft can be coaxial and have a certain radial deformation resistant whole, so that bearing seat supporting points required to be designed in the box body are reduced, the structural design is simplified, and the whole weight is reduced.
As a preferable technical scheme of the invention, the invention further comprises a box cover and a box body which are mutually fixedly arranged, wherein the input shaft, the differential mechanism shell and the front axle output shaft are rotatably arranged with the box cover, and the front axle output gear, the idler wheel, the rear axle output end gear and the driving spiral bevel gear shaft are rotatably arranged with the box body.
As a preferable technical scheme of the invention, the differential housing has a two-lobe structure and comprises a first cylindrical gear and a second cylindrical gear which are respectively meshed with a high-speed gear and a low-speed gear, and the first cylindrical gear and the second cylindrical gear are relatively fixed.
Compared with the prior art, the invention has the beneficial effects that: the multi-shaft output driving axle assembly with two-gear speed change and inter-axle differential is characterized in that the inter-axle differential is integrated with the intermediate shaft through the mutual correlation design of the three shafts of the input shaft, the intermediate shaft and the front axle output shaft; the inside of the intermediate shaft is provided with two half shaft gears, four planetary gears and a cross shaft, and the two high-low gear gears and the upper and lower shells of the differential are integrally processed; the power is transmitted to the intermediate shaft through the input shaft, and the two half shaft gears in the intermediate shaft transmit the power to the middle and rear front axle through the two cylindrical gears integrated below the output shaft and the intermediate shaft respectively, so that the full driving force of the automobile is realized.
Meanwhile, the front output shaft is provided with a power combining device to realize time sharing and full-time four-wheel driving; the design removes the transfer case, reduces the dead weight of the vehicle, reduces multi-stage transmission, directly transmits power to a plurality of drive axles, improves the transmission efficiency and saves energy.
When the front driving force is disconnected, the front axle assembly is matched with the front axle assembly of the rapidly switched wheel-side speed reducer assembly disclosed in the patent number ZL201921604216.3, and when in time-sharing driving, the front axle output shaft, the transmission shaft, the main speed reducer and the two half shafts are all in a static state, so that the mechanical abrasion can be reduced to the greatest extent, and the oil consumption and the maintenance cost are further reduced.
Drawings
FIG. 1 is a schematic illustration of a 6X6 power transmission arrangement of the present invention;
fig. 2 is a schematic diagram of the utility 4X4 power transmission arrangement.
In the figure: 1. an input flange; 2. an input shaft; 3. a high gear; 4. a high-low gear meshing sleeve; 5. a low gear; 6. rear axle output end gear; 7. an idler; 8. a through shaft; 9. driven spiral bevel gears; 10. a rear axle output flange; 11. planetary gears of the differential mechanism; 12. an inter-axle differential engagement sleeve; 13. a first half-shaft gear; 14. a driving helical bevel gear shaft; 15. a first cylindrical gear; 16. a second cylindrical gear; 17. a front axle output shaft; 18. a front axle output flange; 19. a case cover; 20. a case; 21. the front axle outputs the engaging sleeve; 22. a front axle output gear; 23. an oil pump assembly; 24. a speed reducer assembly; 25. a second side gear; 26. a brake operating mechanism assembly; 27. a half shaft; 28. a bridge housing; 29. a brake assembly; 30. and the tail end driving mechanism assembly.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: a two-gear speed-changing multi-shaft output drive axle assembly with inter-shaft differential speed, comprising an input shaft 2, an intermediate shaft and a front axle output shaft 17 which are arranged in parallel along the longitudinal direction;
an input shaft 2, on the outside of which a high-speed gear 3 and a low-speed gear 5 are coaxially rotatably mounted, and on the outside of which a high-speed and low-speed engagement sleeve 4 capable of being engaged with the ends of the high-speed gear 3 and the low-speed gear 5 alone is coaxially slidably mounted;
the intermediate shaft is of a differential mechanism structure and comprises a differential mechanism shell, a differential mechanism planet wheel 11 and output half shafts at two ends, a transmission gear which is respectively meshed with a high-speed gear 3 and a low-speed gear 5 is coaxially and fixedly arranged outside the differential mechanism shell, a first group of output half shafts can directly transmit power to the intermediate shaft and slide along the axis of the first group of output half shafts to be provided with an inter-shaft differential mechanism meshing sleeve 12 which can be meshed with or separated from the end part of the differential mechanism shell, and a second group of output half shafts simultaneously transmit power to the front axle and the rear axle through a gear pair;
a front axle output shaft 17, an outer part coaxially rotates and is provided with a front axle output gear 22 meshed with the second group of output half shafts, and a front axle output meshing sleeve 21 capable of meshing with the end part of the front axle output gear 22 is slidably arranged along the axis;
the output half shafts are hollow shafts, a driving spiral bevel gear shaft 14 capable of transmitting power to the middle axle is coaxially and fixedly arranged in the first group of output half shafts, and the driving spiral bevel gear shaft 14 penetrates through the second group of output half shafts and is coaxially and rotatably arranged with the second group of output half shafts.
The end part of the second group of output half shafts is coaxially and fixedly provided with an idler wheel 7, the idler wheel 7 is meshed with a front axle output gear 22, and the front axle output gear 22 is coaxially connected with an oil pump assembly 23;
by adding the oil pump assembly 23 which is driven by the front axle output gear 22, the transmission pairs are forced to lubricate, so that the reliability of the transmission pairs is ensured, and the front axle output gear 22 can still be forced to lubricate even if the front axle power is disconnected in the working process.
The rear axle power transmission device further comprises a through shaft 8 for transmitting power to the rear axle, the through shaft 8 is overlapped with the axis of the input shaft 2, a rear axle output end gear 6 is coaxially and fixedly arranged outside, and the rear axle output end gear 6 is meshed with the idle gear 7.
The rear axle output end gear 6 and the end part of the input shaft 2 are coaxially and rotatably installed through a bearing pair, and the end part extension part of the low-speed gear 5 and the end part groove part of the rear axle output end gear 6 are coaxially and rotatably installed through a gear pair;
through the mounting mode design of the rear axle output end gear 6, the input shaft 2 and the through shaft 8 can be coaxial and have a certain radial deformation resistance, so that bearing seat supporting points required to be designed in the box body 20 are reduced, the structural design is simplified, and the overall weight is reduced.
The transmission further comprises a box cover 19 and a box body 20 which are fixedly arranged with each other, wherein the input shaft 2, the differential mechanism shell and the front axle output shaft 17 are rotatably arranged with the box cover 19, and the front axle output gear 22, the idler gear 7, the rear axle output end gear 6 and the driving spiral bevel gear shaft 14 are rotatably arranged with the box body 20.
The differential housing has a two-lobe structure including a first spur gear 15 and a second spur gear 16 engaged with the high gear 3 and the low gear 5, respectively, the first spur gear 15 and the second spur gear 16 being relatively fixed.
Examples:
a multi-shaft output drive axle assembly with two-gear speed change and inter-axle differential speed comprises an input flange 1, an input shaft 2, a high-speed gear 3, a high-low gear meshing sleeve 4, a low-speed gear 5, a rear axle output end gear 6, an idler wheel 7, a through shaft 8, a driven spiral bevel gear 9, a rear axle output flange 10, a differential planet gear 11, an inter-axle differential meshing sleeve 12, a first half shaft gear 13, a driving spiral bevel gear shaft 14, a first cylindrical gear 15, a second cylindrical gear 16, a front axle output shaft 17, a front axle output flange 18, a box cover 19, a box body 20, a front axle output meshing sleeve 21, a front axle output gear 22, an oil pump assembly 23, a speed reducer assembly 24, a second half shaft gear 25, a brake operating mechanism assembly 26, a half shaft 27, a axle housing 28, a brake assembly 29 and a tail end drive mechanism assembly 30.
Wherein, driven spiral bevel gear 9, reduction gear assembly 24, second semi-axis gear 25, stopper operating mechanism assembly 26, semi-axis 27, axle housing 28, stopper assembly 29, terminal actuating mechanism assembly 30 constitute the transaxle jointly, realize the transmission of power to the transaxle through driving spiral bevel gear shaft 14 and driven spiral bevel gear 9 meshing.
The input flange 1 is sleeved on the input shaft 2 through a spline, the input shaft 2 is sleeved with a high-speed gear 3 and a low-speed gear 5, the rear axle output end gear 6 and the low-speed gear 5 are sleeved through a bearing, and the through shaft 8 is connected with the rear axle output end gear 6 through the spline, so that the assembly is a first shaft; the first cylindrical gear 15 and the second cylindrical gear 16 are connected into a differential shell through bolts, a first half-shaft gear 13, a second half-shaft gear 25 and a differential planet wheel 11 are assembled in an inner cavity, the tail end of a driving spiral bevel gear shaft 14 is connected with the first half-shaft gear 13 through a spline, the tooth end of the driving spiral bevel gear shaft is meshed with a driven spiral bevel gear 9, and an idler wheel 7 is connected with the second half-shaft gear 25 through a spline, so that the driving spiral bevel gear shaft is a second shaft of the assembly; the front axle output gear 22 is sleeved on the front axle output shaft 17, the front axle output flange 18 is connected with the front axle output shaft 17 through a spline, the front axle output meshing sleeve 21 is sleeved on the front axle output shaft 17 through a spline, and the tail end of the front axle output gear 22 is connected with the oil pump assembly 23 through a spline, so that the front axle output meshing sleeve is a third shaft of the assembly; the first shaft, the second shaft and the third shaft of the assembly are arranged in a cavity formed by connecting the box cover 19 and the box body 20 through a multi-disc bearing frame, and the power transmission of the axles is realized through the mutual linkage of the three shafts, so that the inter-axle differential speed is met, and meanwhile, two speed modes are provided for outputting power to the middle axle, the rear axle and the front axle.
The high-low gear meshing sleeve 4 is sleeved on the input shaft 2 through a spline and is meshed with the low gear 5 and the high gear 3 respectively, the low gear 5 is meshed with the second cylindrical gear 16, and the high gear 3 is meshed with the first cylindrical gear 15 to provide a high speed mode and a low speed mode for the assembly.
On the second shaft, the first cylindrical gear 15 and the second cylindrical gear 16 are simultaneously used as two half shells of the differential mechanism, and are connected through bolts, and the first half shaft gear 13, the second half shaft gear 25 and the differential mechanism planet gears 11 are assembled in the cavity, so that the inter-shaft differential function of the assembly is realized.
The tail end of the driving spiral bevel gear shaft 14 is connected with the first half-shaft gear 13 through a spline, the tooth end is meshed with the driven spiral bevel gear 9, power is provided for a middle axle, and the driving spiral bevel gear shaft 14 is a right-hand gear in order to ensure the running direction of a vehicle and the service life of a payload in the process of driving. The idler wheel 7 is connected to the second side gear 25 by splines, the idler wheel 7 is meshed with the rear axle output gear 6, and the rear axle is powered by the through shaft 8 and the rear axle output flange 10.
Idler gear 7 meshes with front axle output gear 22, powering the front axle through front axle output sleeve 21, front axle output shaft 17 and front axle output flange 18.
The front axle output meshing sleeve 21 is operated by an operating mechanism to realize the meshing and separation of the front axle output meshing sleeve 21 and the front axle output gear 22, thereby realizing the output and interruption of the front axle power.
The inter-axle differential gear meshing sleeve 12 is sleeved on the first half-axle gear 13 through a spline, and the meshing and the separation of the inter-axle differential gear meshing sleeve 12 and the first cylindrical gear 15 are realized through the action of an operating mechanism, so that the function of an inter-axle differential lock is realized.
The tail end of the front axle output gear 22 is connected with an oil pump assembly 23 through a spline, and a forced effective lubrication function is provided for transmission parts in the assembly.
The output power of the vehicle gearbox is input through an input flange 1 and then is transmitted to an input shaft 2, a high-speed gear 3, a high-low gear meshing sleeve 4 and a low-speed gear 5 are respectively sleeved on the input shaft 2, two end face teeth of the high-low gear meshing sleeve 4 are respectively meshed with the end face teeth of the high-speed gear 3 and the low-speed gear 5 in a time sharing manner, the high-speed gear 3 is meshed with a first cylindrical gear 15, the low-speed gear 5 is meshed with a second cylindrical gear 16, so that the power can be transmitted to an inter-shaft differential mechanism in two speed states, a driving spiral bevel gear shaft 14 receives the power transmission of a first half-shaft gear 13 and is meshed with a driven spiral bevel gear 9, and the transmission of the power to a middle bridge is completed; the idler wheel 7 receives the power transmission of the second half shaft gear 25, the idler wheel 7 is respectively meshed with the rear axle output end gear 6 and the front axle output gear 22, the rear axle output end gear 6 realizes the transmission of rear axle power through the through shaft 8 and the rear axle output flange 10, and the front axle output gear 22 realizes the transmission of front axle power through the front axle output meshing sleeve 21, the front axle output shaft 17 and the front axle output flange 18.
Referring to fig. 2, on the basis of the above, an alternative structural design is provided, the inter-axle differential lock function is removed, and a rear axle output end gear 6, a through shaft 8, a rear axle output flange 10, a differential planet gear 11, an inter-axle differential meshing sleeve 12, a first half shaft gear 13 and a second half shaft gear 25 are removed, wherein an idler gear 7 and a driving spiral bevel gear shaft 14 are directly and coaxially fixed with a differential shell, and the assembly can be used as a drive axle assembly for two-gear speed change and simultaneously providing rear axle and front axle power for a 4X4 vehicle.
When the traditional transfer case function and the main speed reducer function are integrated on the drive axle assembly in a limited space, the invention not only realizes the high-low speed requirement of the vehicle running requirement, but also simultaneously realizes the differential function of an inter-axle differential mechanism among the middle axle, the rear axle and the front axle; the vehicle layout method provides a more reasonable space arrangement mode for the whole vehicle layout, reduces the dead weight of the vehicle, reduces the cost, is easy to maintain, and prolongs the service life of the vehicle.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A two-gear variable speed multi-shaft output drive axle assembly with interaxle differential, comprising an input shaft (2), an intermediate shaft and a front axle output shaft (17) arranged in parallel in the longitudinal direction, characterized in that:
the input shaft (2) is coaxially and rotatably provided with a high-speed gear (3) and a low-speed gear (5) at the outside, and is coaxially and slidably provided with a high-speed and low-speed meshing sleeve (4) which can be independently meshed with the ends of the high-speed gear (3) and the low-speed gear (5);
the intermediate shaft is of a differential mechanism structure and comprises a differential mechanism shell, differential mechanism planet gears (11) and output half shafts at two ends, a transmission gear which is respectively meshed with a high-speed gear (3) and a low-speed gear (5) is coaxially and fixedly arranged outside the differential mechanism shell, a first group of output half shafts can directly transmit power to the intermediate shaft and slide along the axis of the first group of output half shafts to be provided with an inter-shaft differential mechanism meshing sleeve (12) which can be meshed with or separated from the end part of the differential mechanism shell, and a second group of output half shafts simultaneously transmit power to the front axle and the rear axle through a gear pair;
a front axle output shaft (17), a front axle output gear (22) meshed with the second group of output half shafts is coaxially arranged on the outside in a rotating way, and a front axle output meshing sleeve (21) capable of being meshed with the end part of the front axle output gear (22) is arranged along the axis in a sliding way;
the output half shafts are hollow shafts, an active spiral bevel gear shaft (14) capable of transmitting power to the middle axle is coaxially and fixedly arranged in the first group of output half shafts, and the active spiral bevel gear shaft (14) penetrates through the second group of output half shafts and is coaxially and rotatably arranged with the second group of output half shafts;
an idler wheel (7) is coaxially and fixedly arranged at the end part of the second group of output half shafts, the idler wheel (7) is meshed with a front axle output gear (22), and the front axle output gear (22) is coaxially connected with an oil pump assembly (23); the power transmission device further comprises a through shaft (8) for transmitting power to the rear axle, the through shaft (8) is overlapped with the axis of the input shaft (2), a rear axle output end gear (6) is coaxially and fixedly arranged outside the power transmission device, and the rear axle output end gear (6) is meshed with the idler wheel (7); the rear axle output end gear (6) and the end part of the input shaft (2) are coaxially and rotatably installed through a bearing pair, and the end part extension part of the low-speed gear (5) and the end part groove part of the rear axle output end gear (6) are coaxially and rotatably installed through a gear pair.
2. The two speed variable, multi-axle output drive axle assembly having an inter-axle differential as defined in claim 1, wherein: the novel differential mechanism further comprises a box cover (19) and a box body (20) which are fixedly arranged with each other, wherein the input shaft (2), the differential mechanism shell and the front axle output shaft (17) are rotatably arranged with the box cover (19), and the front axle output gear (22), the idler wheel (7), the rear axle output end gear (6) and the driving spiral bevel gear shaft (14) are rotatably arranged with the box body (20).
3. The two speed variable, multi-axle output drive axle assembly having an inter-axle differential as defined in claim 2 wherein: the differential mechanism shell is of a two-lobe structure and comprises a first cylindrical gear (15) and a second cylindrical gear (16) which are respectively meshed with the high-speed gear (3) and the low-speed gear (5), and the first cylindrical gear (15) and the second cylindrical gear (16) are relatively fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210142573.2A CN114435027B (en) | 2022-02-16 | 2022-02-16 | Two-gear speed-changing multi-shaft output drive axle assembly with inter-axle differential speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210142573.2A CN114435027B (en) | 2022-02-16 | 2022-02-16 | Two-gear speed-changing multi-shaft output drive axle assembly with inter-axle differential speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114435027A CN114435027A (en) | 2022-05-06 |
| CN114435027B true CN114435027B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210142573.2A Active CN114435027B (en) | 2022-02-16 | 2022-02-16 | Two-gear speed-changing multi-shaft output drive axle assembly with inter-axle differential speed |
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| CN (1) | CN114435027B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830834A (en) * | 1981-08-20 | 1983-02-23 | Nissan Motor Co Ltd | Four-wheel driven car |
| DE102016218747A1 (en) * | 2016-09-28 | 2018-03-29 | Audi Ag | Drive arrangement for a four-wheel drive motor vehicle |
| WO2020159401A1 (en) * | 2019-01-31 | 2020-08-06 | Акционерное общество "Брянский автомобильный завод" | Transfer case for a multi-axle vehicle |
| CN213575370U (en) * | 2020-09-01 | 2021-06-29 | 山东福安达重汽零部件制造有限公司 | Integrated two-gear transfer case assembly with separately arranged front and rear axle outputs |
| CN215521864U (en) * | 2021-09-13 | 2022-01-14 | 山东福安达重汽零部件制造有限公司 | Integrated 6X6 automobile drive axle of integrated transfer case and final drive assembly |
-
2022
- 2022-02-16 CN CN202210142573.2A patent/CN114435027B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830834A (en) * | 1981-08-20 | 1983-02-23 | Nissan Motor Co Ltd | Four-wheel driven car |
| DE102016218747A1 (en) * | 2016-09-28 | 2018-03-29 | Audi Ag | Drive arrangement for a four-wheel drive motor vehicle |
| WO2020159401A1 (en) * | 2019-01-31 | 2020-08-06 | Акционерное общество "Брянский автомобильный завод" | Transfer case for a multi-axle vehicle |
| CN213575370U (en) * | 2020-09-01 | 2021-06-29 | 山东福安达重汽零部件制造有限公司 | Integrated two-gear transfer case assembly with separately arranged front and rear axle outputs |
| CN215521864U (en) * | 2021-09-13 | 2022-01-14 | 山东福安达重汽零部件制造有限公司 | Integrated 6X6 automobile drive axle of integrated transfer case and final drive assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114435027A (en) | 2022-05-06 |
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