CN211820614U - Single-motor transverse shiftable electric drive bridge reducer assembly - Google Patents
Single-motor transverse shiftable electric drive bridge reducer assembly Download PDFInfo
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- CN211820614U CN211820614U CN201922257964.5U CN201922257964U CN211820614U CN 211820614 U CN211820614 U CN 211820614U CN 201922257964 U CN201922257964 U CN 201922257964U CN 211820614 U CN211820614 U CN 211820614U
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Abstract
The utility model discloses a single motor horizontal interchangeable keeps off electricity and drives bridge reduction gear assembly, its characterized in that: the device comprises a motor, a first shaft assembly, a second shaft assembly, a planetary reduction gear assembly and a differential assembly; the motor is connected with a shaft assembly; the high-speed and low-speed two-gear speed regulation of the first shaft assembly and the second shaft assembly is realized through the sliding engagement component on the first shaft assembly; the two-shaft assembly is in transmission with a sun gear shaft of the planetary reduction gear assembly through the long-meshed gear set; the planet carrier of the planetary reduction gear assembly is connected with the differential inner shell of the differential assembly through a planet shaft, and the gear ring is connected with the differential shell. The utility model discloses compact structure, the integrated level is high, and the processing degree of difficulty is low, light in weight.
Description
Technical Field
The utility model belongs to the technical field of the commercial car reduction gear, specifically a single motor horizontal interchangeable keeps off electricity drives bridge reduction gear assembly.
Background
Chinese patent, publication No. CN109372950A, publication No. 2019.02.22, discloses a vertical coaxial shiftable electric drive axle reduction gearbox assembly, which comprises a motor, a shaft assembly, an intermediate shaft assembly, a main bevel shaft assembly and a differential assembly, wherein the intermediate shaft assembly comprises an intermediate shaft, an intermediate shaft normally meshed gear and an intermediate shaft low-speed gear, the main bevel shaft assembly comprises a driving bevel gear, a main bevel shaft low-speed gear and a fixed gear seat, the motor is connected with the shaft assembly, the shaft assembly is meshed with the intermediate shaft normally meshed gear, the intermediate shaft low-speed gear is meshed with the main bevel shaft low-speed gear, the main bevel shaft assembly is connected with the shaft assembly through a sliding meshing sleeve, and the driving bevel gear is meshed with a driven bevel gear of the differential assembly. The AMT is less in gear, and the system cost is reduced while the dynamic property is considered.
However, the assembly of the above patent has large volume, complex structure, heavy weight and low integration level; the Grarison bevel gear is complex to manufacture and process, the processing precision is difficult to guarantee, and the cost is high.
Also such as: chinese patent, publication No. CN104295675A, published japanese 2015.01.21, discloses a two-gear transmission assembly for an electric vehicle, in which an input shaft and an intermediate shaft are installed in an inner cavity formed after a left box body and a right box body are combined, the input shaft is connected with an output shaft of a motor, a first gear on the intermediate shaft is normally engaged with a first gear shaft tooth part of the input shaft, and a second gear is normally engaged with a second gear shaft tooth part; a synchronizer gear sleeve is sleeved on the intermediate shaft between the first gear and the second gear and can axially slide along the intermediate shaft under the shifting of a shifting fork; the speed reducing gear part of the intermediate shaft is normally meshed with the speed reducing gear on the speed reducer shell, the planetary gear shafts are fixed on the speed reducer shell, two planetary gears on the planetary gear shafts are normally meshed with two output bevel gears simultaneously, and bevel gear shafts of the two output bevel gears are supported in mounting holes at the left end and the right end of the speed reducer shell respectively. The utility model discloses can pass through the bevel gear shaft output of output bevel gear with the power of motor to the accessible is shifted and is made the bevel gear shaft have two gears, just so can adapt to the road conditions well. Chinese patent, publication No. CN205118187U, bulletin date 2016.03.30 discloses an electric freight car speed reducer, which belongs to the field of speed changers, and the structure thereof includes a left shell and a right shell, the left shell and the right shell are correspondingly buckled into a speed reducer shell, an input shaft is installed on the upper portion in the left shell and the right shell, the input end of the input shaft is connected with a connecting disc on the outer side of the right shell, an intermediate shaft is installed below the input shaft, and a differential assembly is installed below the intermediate shaft. The utility model discloses an electric truck reduction gear compares with prior art, has solved current electric truck reduction gear ubiquitous bearing capacity and has low, the big scheduling problem of noise, has characteristics such as reasonable in design, compact structure, noise are low, bearing capacity is big.
Although the two patents have simple structures, the transmission efficiency and the integration level are all to be improved.
SUMMERY OF THE UTILITY MODEL
To the problem that the background art exists, the utility model aims to provide a single motor horizontal interchangeable keeps off electricity that compact structure, integrated level are high, the processing degree of difficulty is low, light in weight drives axle reduction assembly with electricity.
In order to achieve the above object, the utility model relates to a single motor horizontal interchangeable keeps off electrically drives bridge reduction gear assembly, its characterized in that: the device comprises a motor, a first shaft assembly, a second shaft assembly, a planetary reduction gear assembly and a differential assembly; the motor is connected with a shaft assembly; the high-speed and low-speed two-gear speed regulation of the first shaft assembly and the second shaft assembly is realized through the sliding engagement component on the first shaft assembly; the two-shaft assembly is in transmission with a sun gear shaft of the planetary reduction gear assembly through the long-meshed gear set; the planet carrier of the planetary reduction gear assembly is connected with the differential inner shell of the differential assembly through a planet shaft, and the gear ring is connected with the differential shell.
Preferably, the first shaft assembly, the second shaft assembly and the long meshing gear set are positioned in a first space enclosed by a left transmission shell and a right transmission shell; the planetary reduction gear assembly is positioned in a second space enclosed by the differential shell and the transmission left shell; one end of the sun wheel shaft is positioned in the first space, and the other end of the sun wheel shaft is positioned in the second space.
Preferably, an axle assembly includes an axle, an axle high-speed gear driving gear, an axle low-speed gear driving gear, the slip meshing subassembly includes: a sliding meshing sleeve and a fixed tooth holder; the two-shaft assembly comprises a two-gear shaft, a two-shaft high-speed driven gear and a two-shaft low-speed driven gear; the first-shaft high-speed gear driving gear is meshed with the second-shaft high-speed gear driven gear, and the first-shaft low-speed gear driving gear is meshed with the second-shaft low-speed gear driven gear; the sliding engagement assembly is located between a first shaft high-speed gear driving gear and a first shaft low-speed gear driving gear.
Further preferably, the first shaft high-speed gear driving gear and the first shaft low-speed gear driving gear are connected with a first shaft needle roller bearing.
Further preferably, the fixed tooth holder is fixed with a shaft spline, and the sliding meshing sleeve is in spline connection with the fixed tooth holder.
Further preferably, the two-shaft high-speed driven gear and the two-shaft low-speed driven gear are in interference fit with the gear shaft. The interference fit is realized through the cold pressing process, the requirement of power transmission can be met, the structure is simplified, and the cost is saved.
Preferably, the long meshing gear set comprises a cylindrical gear arranged on the two-shaft assembly and a secondary speed reduction driven gear arranged on the sun gear shaft, and the cylindrical gear and the secondary speed reduction driven gear are in constant meshing.
Further preferably, the two-shaft assembly comprises two shafts, and the cylindrical gear and the two shafts are of an integral structure. Therefore, the two shafts are designed into gear shafts, the structure is simplified while the requirement of power transmission is met, and the cost is saved.
Further preferably, the secondary reduction driven gear is in interference fit with the sun gear shaft.
Still further preferably, the two-stage reduction driven gear is connected with the transmission left shell and the transmission right shell through conical bearings.
The utility model has the advantages that: including two fender position of high-speed gear and low-speed gear, can realize shifting, its power transmission route: in the high-speed gear, the torque of the motor is input through a first shaft spline, and finally is output to a half shaft and a wheel end through an internal spline of a differential gear through a sliding meshing sleeve, a fixed gear seat, a first-stage high-speed driving gear of a first shaft assembly, a first-stage high-speed driven gear of a second shaft assembly, a second-stage driving gear of the second shaft assembly, a central driven gear, a second-shaft central planetary reduction gear and the differential gear. In low-speed gear, the torque of the motor is input through a first shaft spline, and finally is output to a half shaft and a wheel end through an internal spline of a differential gear through a sliding meshing sleeve, a fixed gear seat, a first-stage low-speed driving gear of a first shaft assembly, a first-stage low-speed driven gear of a second shaft assembly, a second-stage driving gear of the second shaft assembly, a central driven gear, a second-shaft central planetary reduction gear and the differential gear.
The utility model discloses compact structure, the integrated level is high, and the processing degree of difficulty is low, light in weight.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic diagram of the power transmission of the high-speed gear of the present invention
FIG. 3 is a schematic view of the low-speed power transmission of the present invention
In the figure: the gear transmission comprises a first shaft assembly 1, a second shaft assembly 2, a planetary gear reduction assembly 3, a differential assembly 4, a first shaft 5, a high-speed gear driving gear 6, a low-speed gear 7, a sliding meshing sleeve 8, a fixed gear seat 9, a two-gear wheel shaft 10, a high-speed gear driven gear 11, a low-speed gear driven gear 12, a second-stage reduction driven gear 13, a planetary reduction gear set 14, a sun wheel shaft 15, a planetary wheel 16, a planetary carrier 17, a gear ring 18, a transmission left shell 19, a transmission right shell 20, a differential shell 21, a left half shaft pipe 22, a right half shaft pipe 23 and a differential inner shell 24.
Detailed Description
The technical solution (including the preferred technical solution) of the present invention is further described in detail by referring to fig. 1 to 3 and illustrating some alternative embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the single-motor transverse shiftable electric drive axle reducer assembly of the present invention comprises a motor, a first shaft assembly 1, a second shaft assembly 2, a planetary gear reduction assembly 3, a differential assembly 4, a transmission left shell 19, and a transmission right shell 20; the first shaft assembly 1 comprises a first shaft 5, a high-speed gear driving gear 6, a low-speed gear 7, a sliding meshing sleeve 8 and a fixed gear seat 9; the two-shaft assembly 2 comprises a two-gear shaft 10, a high-speed driven gear 11 and a low-speed driven gear 12; the planetary reduction gear assembly 3 comprises a secondary reduction driven gear 13 and a planetary reduction gear set 14; the planetary reduction gear set 14 includes a sun gear shaft 15, planetary gears 16, a planet carrier 17, and a ring gear 18; the differential assembly 4 includes a differential case 21, a left axle tube 22, a right axle tube 23, and a differential inner case 24. The cylindrical gear arranged on the two-shaft assembly 2 and the secondary speed reduction driven gear 13 arranged on the sun gear shaft 15 are in constant mesh to form a constant mesh gear set, and the cylindrical gear and the two shafts are in an integral structure.
The first shaft assembly 1, the second shaft assembly 2 and the long meshing gear set are positioned in a first space enclosed by a transmission left shell 19 and a transmission right shell 20; the planetary reduction gear assembly 3 is positioned in a second space enclosed by the differential case 21 and the transmission left case 19; the sun gear shaft 15 has one end located in the first space and the other end located in the second space.
The motor is connected with a first shaft assembly 1, a high-speed gear driving gear 6 is meshed with a high-speed gear driven gear 11, and the high-speed gear driving gear 6 is connected with a first shaft 5 through a needle bearing; the low-speed gear driving gear 7 is meshed with the low-speed gear driven gear 12, and the low-speed gear driving gear 7 is connected with a shaft 5 through a needle bearing.
The sliding meshing sleeve 8 and the fixed tooth holder 9 form a sliding meshing assembly, and the fixed tooth holder 9 and the shaft 5 are fixed through splines; the sliding meshing sleeve 8 is connected with the fixed tooth holder 9 through a spline; the sliding meshing sleeve 8 slides rightwards, the first-shaft high-speed gear driving gear 6 is connected with the first shaft 5, the sliding meshing sleeve slides rightwards, and the first-shaft low-speed gear driving gear 7 is connected with the first shaft 5.
The high-speed gear driven gear 11 and the two-gear shaft assembly 2 adopt a cold pressing process to ensure interference fit; the low-speed gear driven gear 12 and the two-gear shaft assembly 2 adopt a cold pressing process to ensure interference fit; the cylindrical gear processed on the gear shaft 10 is meshed with a secondary speed reduction driven gear 13 of the planetary gear speed reduction assembly 3, the secondary speed reduction driven gear 13 is in interference fit with a sun gear shaft 15 of the planetary gear speed reduction assembly 3 through a cold pressing process, and the secondary speed reduction driven gear 13 is connected with a transmission left shell 19 and a transmission right shell 20 through conical bearings.
The planet gears 16 are connected with the planet carrier 17 through planet shafts, the planet carrier 17 is connected with the differential inner shell 24 through the planet shafts, and the ring gear 18 is connected with the differential shell 21 through bolts.
The transmission left shell 19 is connected with the differential shell 21 through bolts, the left half-shaft tube 22 is connected with the differential shell 21 through bolts, the transmission right shell 20 is connected with the right half-shaft tube 23 through bolts, and the transmission right shell 19 is connected with the speed reduction right shell 20 through bolts.
The high gear power transmission is shown in fig. 2: the sliding meshing sleeve 8 slides rightwards, and the power path is as follows:
the motor-a shaft 5-a high-speed gear driving gear 6-a high-speed gear driven gear 11-a two-gear shaft 10-a secondary reduction driven gear 13-a sun gear shaft 15-a planet carrier 17-a differential mechanism inner shell 24-a half shaft gear-a half shaft.
Low-speed power transmission is shown in FIG. 3: the sliding engagement sleeve 8 slides leftwards, and the force path is as follows:
the motor-a shaft 5-a low-speed gear driving gear 7-a low-speed gear driven gear 12-a two-gear shaft 10-a secondary speed reduction driven gear 13-a sun gear shaft 15-a planet carrier 17-a differential mechanism inner shell 24-a half shaft gear-a half shaft.
The utility model discloses a shaft 5, gear shaft 10 and sun gear shaft 15, semi-axis parallel arrangement.
It will be understood by those skilled in the art that the foregoing is merely exemplary of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, combinations, alternatives, and equivalents falling within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a single motor horizontal interchangeable keeps off electricity and drives bridge reduction gear assembly which characterized in that: the device comprises a motor, a first shaft assembly, a second shaft assembly, a planetary reduction gear assembly and a differential assembly; the motor is connected with a shaft assembly; the high-speed and low-speed two-gear speed regulation of the first shaft assembly and the second shaft assembly is realized through the sliding engagement component on the first shaft assembly; the two-shaft assembly is in transmission with a sun gear shaft of the planetary reduction gear assembly through the long-meshed gear set; the planet carrier of the planetary reduction gear assembly is connected with the differential inner shell of the differential assembly through a planet shaft, and the gear ring is connected with the differential shell.
2. The single-motor transverse shiftable electric drive axle reducer assembly of claim 1, wherein: the first shaft assembly, the second shaft assembly and the long meshing gear set are positioned in a first space enclosed by the transmission left shell and the transmission right shell; the planetary reduction gear assembly is positioned in a second space enclosed by the differential shell and the transmission left shell; one end of the sun wheel shaft is positioned in the first space, and the other end of the sun wheel shaft is positioned in the second space.
3. The single-motor transverse shiftable electrically driven axle reducer assembly of claim 1 or 2, wherein: an axle assembly includes one, one high-speed gear driving gear, one low-speed gear driving gear, the slip meshing subassembly includes: a sliding meshing sleeve and a fixed tooth holder; the two-shaft assembly comprises a two-gear shaft, a two-shaft high-speed driven gear and a two-shaft low-speed driven gear; the first-shaft high-speed gear driving gear is meshed with the second-shaft high-speed gear driven gear, and the first-shaft low-speed gear driving gear is meshed with the second-shaft low-speed gear driven gear; the sliding engagement assembly is located between a first shaft high-speed gear driving gear and a first shaft low-speed gear driving gear.
4. The single-motor transverse shiftable electric drive axle reducer assembly of claim 3, wherein: the first shaft high-speed gear driving gear and the first shaft low-speed gear driving gear are connected with a first shaft needle roller bearing.
5. The single-motor transverse shiftable electric drive axle reducer assembly of claim 3, wherein: the fixed tooth holder is fixed with a shaft spline, and the sliding meshing sleeve is in spline connection with the fixed tooth holder.
6. The single-motor transverse shiftable electric drive axle reducer assembly of claim 3, wherein: and the two-shaft high-speed driven gear and the two-shaft low-speed driven gear are in interference fit with the two-gear shaft.
7. The single-motor transverse shiftable electrically driven axle reducer assembly of claim 1 or 2, wherein: the long meshing gear set comprises a cylindrical gear arranged on the two-shaft assembly and a second-stage reduction driven gear arranged on the sun gear shaft, and the cylindrical gear and the second-stage reduction driven gear are in constant meshing.
8. The single-motor transverse shiftable electric drive axle reducer assembly of claim 7, wherein: the two-shaft assembly comprises two shafts, and the cylindrical gear and the two shafts are of an integrated structure.
9. The single-motor transverse shiftable electric drive axle reducer assembly of claim 7, wherein: and the secondary reduction driven gear is in interference fit with the sun wheel shaft.
10. The single-motor transverse shiftable electric drive axle reducer assembly of claim 7, wherein: the two-stage reduction driven gear is connected with the transmission left shell and the transmission right shell through conical bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922257964.5U CN211820614U (en) | 2019-12-16 | 2019-12-16 | Single-motor transverse shiftable electric drive bridge reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922257964.5U CN211820614U (en) | 2019-12-16 | 2019-12-16 | Single-motor transverse shiftable electric drive bridge reducer assembly |
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| Publication Number | Publication Date |
|---|---|
| CN211820614U true CN211820614U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922257964.5U Active CN211820614U (en) | 2019-12-16 | 2019-12-16 | Single-motor transverse shiftable electric drive bridge reducer assembly |
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| Country | Link |
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| CN (1) | CN211820614U (en) |
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- 2019-12-16 CN CN201922257964.5U patent/CN211820614U/en active Active
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