CN111853179A - Two-gear speed reducer device and vehicle - Google Patents
Two-gear speed reducer device and vehicle Download PDFInfo
- Publication number
- CN111853179A CN111853179A CN202010501709.5A CN202010501709A CN111853179A CN 111853179 A CN111853179 A CN 111853179A CN 202010501709 A CN202010501709 A CN 202010501709A CN 111853179 A CN111853179 A CN 111853179A
- Authority
- CN
- China
- Prior art keywords
- gear
- planet
- actuating shaft
- sun
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
The invention discloses a two-gear speed reducer device which comprises a driving device, a double-planet row, a clutch, a transmission gear, an output transmission mechanism and a differential mechanism, wherein the driving device is connected with the double-planet row; the double-planet row comprises a first sun gear, a gear ring and a planet carrier, and the gear ring is fixedly connected with the speed reducer shell; the clutch comprises an actuating mechanism, the actuating mechanism is connected with the transmission gear, and the actuating mechanism can move in the axial direction connected with the transmission gear under the driving of the driving device; when the actuating mechanism moves in the axial direction connected with the transmission gear, the actuating mechanism can be connected with the planet carrier or the first sun gear; the transmission gear is connected with the differential mechanism through an output transmission mechanism; a vehicle is also disclosed; the invention can realize large-torque gear shifting through the arranged movable actuating mechanism, not only ensures that the whole vehicle has better power performance and fuel economy, but also simplifies the structure of the speed reducer, reduces the volume of the speed reducer, has light weight and reduces the manufacturing and assembling cost.
Description
Technical Field
The invention relates to the technical field of transmissions, in particular to a two-gear speed reducer device and a vehicle.
Background
At present pure electric vehicles adopts single-gear reduction gear more, though its simple structure, with low costs, can not compromise pure electric vehicles's dynamic property and economic nature, and driving motor can't work in the high efficiency district always for the motor energy consumption is high, the life-span is low, and whole car performance is: climbing, starting ability and high-speed performance are poor. Compared with a single-gear speed reducer, the pure electric vehicle can greatly improve the power performance (low-speed acceleration performance, climbing performance, highest vehicle speed and the like) of the whole vehicle by matching a two-gear speed reducer on the premise of slightly increasing the cost and the weight, and has the potential of improving the comprehensive efficiency of an electric power assembly by matching the two-gear speed reducer.
Most of the existing two-gear speed reducer schemes are structures of planetary gears matched with wet clutches, the wet clutches are various in part types and expensive in price, and complex hydraulic actuating mechanisms need to be matched; the reducer is not only complex in structure, large in size and weight, but also low in transmission efficiency.
Disclosure of Invention
In order to solve the technical problems, aiming at the problems, the two-gear speed reducer device disclosed by the invention can realize large-torque gear shifting through the arranged movable actuating mechanism, so that the whole vehicle has better power performance and fuel economy, the structure of the speed reducer is simplified, the size of the speed reducer is reduced, the weight is light, and the manufacturing and assembling cost is reduced.
In order to achieve the purpose, the invention provides a two-gear speed reducer device which comprises a driving device, a double-planet row, a clutch, a transmission gear, an output transmission mechanism and a differential mechanism, wherein the driving device is connected with the double-planet row;
the double-planet row comprises a first sun gear, a gear ring and a planet carrier, and the gear ring is fixedly connected with the speed reducer shell;
the clutch comprises an actuating mechanism, the actuating mechanism is connected with the transmission gear, and the actuating mechanism can move in the axial direction connected with the transmission gear under the driving of the driving device;
when the actuating mechanism moves in the axial direction connected with the transmission gear, the actuating mechanism can be connected with the planet carrier or the first sun gear;
the transmission gear is connected with the differential through the output transmission mechanism.
Further, the double planetary row also comprises a second sun wheel, a second planet wheel and a first planet wheel;
the second sun gear is meshed with the first planet gear, and the first planet gear and the second planet gear are coaxially connected through the planet carrier; the second planet wheel is meshed with the first sun wheel, and the second planet wheel is meshed with the gear ring.
Further, the actuating mechanism comprises an actuating shaft, and an actuating shaft external spline and an actuating shaft internal spline which are arranged on the actuating shaft;
the internal spline of the execution shaft is meshed with the external spline of the transmission gear on the transmission gear;
the actuating shaft can move in the axial direction meshed with the external spline of the transmission gear;
when the actuating shaft moves in the axial direction in which the actuating shaft is engaged with the transmission gear, the external spline of the actuating shaft can be connected with the carrier or the internal spline of the actuating shaft is connected with the first sun gear.
Furthermore, a planet carrier internal spline is arranged on one side, close to the execution shaft, of the planet carrier, and the execution shaft external spline is in meshed connection with the planet carrier through the planet carrier internal spline;
and a first sun gear external spline is arranged on one side of the first sun gear, which is close to the execution shaft, and the execution shaft internal spline is in meshed connection with the first sun gear through the first sun gear external spline.
Further, when the actuating shaft moves in the direction approaching the double planetary row in the axial direction of meshing with the external spline of the transmission gear, the internal spline of the actuating shaft can mesh with the external spline of the first sun gear.
Further, when the actuating shaft moves in the direction away from the double planetary rows in the axial direction of meshing with the external splines of the transmission gear, the external splines of the actuating shaft can be in splined engagement with the internal splines of the planet carrier.
Further, the output transmission mechanism comprises a main reduction driving gear and a main reduction driven gear, the main reduction driving gear is meshed with the main reduction driven gear, the main reduction driving gear is connected with the transmission gear, and the main reduction driven gear is connected with the differential mechanism.
Furthermore, the driving device is a driving motor, and the driving motor is connected with the second sun gear through a motor rotor.
Furthermore, a motor rotor of the driving motor rotates forwards to drive the second sun gear to rotate, the second sun gear drives the first planet gear to rotate, and the second planet gear and the first planet gear rotate at the same rotating speed; the second planet wheel drives the first sun wheel to rotate, and the second planet wheel and the first planet wheel drive the planet carrier to rotate.
The invention also provides a vehicle comprising the two-gear speed reducer device.
The embodiment of the invention has the following beneficial effects:
the two-gear speed reducer device disclosed by the invention can realize high-torque gear shifting through the arranged movable actuating mechanism, so that the whole automobile has better power performance and fuel economy, the structure of the speed reducer is simplified, the size and the weight of the speed reducer are reduced, the manufacturing and assembling cost is reduced, and the two-gear smooth transmission of the pure electric automobile can be realized.
Drawings
In order to more clearly illustrate the two-speed retarder unit and the vehicle according to the invention, reference will now be made briefly to the attached drawings, which are required for the embodiments of the invention, and it will be apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of a two-speed retarder unit in neutral;
FIG. 2 is a schematic view of a two speed reduction unit in first gear;
FIG. 3 is a schematic structural view of a two-speed reduction gear device in a second gear;
wherein the reference numerals in the figures correspond to: 1-a drive device; 2-a motor rotor; 3-a second sun gear; 4-a first planet gear; 5-a reducer housing; 6-gear ring; 7-a second planet wheel; 8-an output transmission mechanism; 9-a differential; 10-a first sun gear; 1001-first sun gear external spline; 11-a planet carrier; 1101-planet carrier internal spline; 12-an execution axis; 1201-external splines of the actuation shaft; 1202-executing shaft inner splines; 13-a transmission gear; 1301-drive gear external splines.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1: a two-gear speed reducer device comprises a driving device 1, a double-planet row, a clutch, a transmission gear 13, an output transmission mechanism 8 and a differential mechanism 9;
the double-planet row comprises a first sun gear 10, a gear ring 6 and a planet carrier 11, wherein the gear ring 6 is fixedly connected with the speed reducer shell 5;
the clutch comprises an actuating mechanism, the actuating mechanism is connected with the transmission gear 13, and the actuating mechanism can move in the axial direction connected with the transmission gear 13 under the driving of the driving device;
when the actuator is moved in the axial direction in connection with the transmission gear 13, the actuator can be connected with the planet carrier 11 or the first sun gear 10;
the transmission gear 13 is connected with the differential mechanism 9 through the output transmission mechanism 8; the large-torque gear shifting can be realized through the movable actuating mechanism, so that the whole vehicle has better power performance and fuel economy, the structure of the speed reducer is simplified, the size and the weight of the speed reducer are reduced, and the manufacturing and assembling cost is reduced.
Preferably, the clutch is a dog clutch.
Preferably, the driving device 1 is a driving motor, and the driving motor is connected with the second sun gear 3 through a motor rotor 2; may be used as an input.
In the embodiment of the present specification, the double planetary row further includes a second sun gear 3, a second planetary gear 7, and a first planetary gear 4;
the second sun gear 3 is meshed with the first planet gear 4, and the first planet gear 4 and the second planet gear 7 are coaxially connected through the planet carrier 11; the second planetary gear 7 meshes with the first sun gear 10, and the second planetary gear 7 meshes with the ring gear 6.
Specifically, the first sun gear 10 may be a large sun gear, and the second sun gear 3 may be a small sun gear; the first planet 4 may be a large planet and the second planet 7 may be a small planet.
Preferably, the first planet wheel 4 and the second planet wheel 7 are coaxially and fixedly connected, and are supported by a planet carrier 11.
In particular, the ring gear 6 may be the ring gear of the second planet wheel.
In the embodiment of the specification, the actuating mechanism comprises an actuating shaft 12, and an actuating shaft external spline 1201 and an actuating shaft internal spline 1202 which are arranged on the actuating shaft 12;
The execution shaft internal spline 1202 is meshed with a transmission gear external spline 1301 on the transmission gear 13;
the actuation shaft 12 is movable in an axial direction in engagement with the drive gear external spline 1301;
when the actuating shaft 12 is moved in the axial direction in which it meshes with the transmission gear 13, the external splines of the actuating shaft 12 can be connected to the planet carrier 11 or the internal splines of the actuating shaft 12 can be connected to the first sun gear 10.
Specifically, the driving device 1 can directly drive the actuating shaft 12 of the actuating mechanism to move in the axial direction meshed with the transmission gear external spline 1301;
in the embodiment of the present specification, a carrier internal spline 1101 is provided on one side of the carrier 11 close to the actuating shaft 12, and the actuating shaft external spline 1201 is in meshing connection with the carrier 11 through the carrier internal spline 1101;
a first sun gear external spline 1001 is arranged on one side of the first sun gear 10 close to the actuating shaft 12, and the actuating shaft internal spline 1202 is in meshed connection with the first sun gear 10 through the first sun gear external spline 1001.
In the embodiment of the present specification, the output transmission mechanism 8 includes a main reduction driving gear and a main reduction driven gear, the main reduction driving gear is engaged with the main reduction driven gear, the main reduction driving gear is connected with the transmission gear 13, and the main reduction driven gear is connected with the differential mechanism 9.
Specifically, the main reduction driving gear is meshed with the transmission gear 13; the driving reduction driven gear is meshed with a gear ring of the differential mechanism 9;
preferably, the transmission gear 23 may be a constant mesh gear.
In the embodiment of the present specification, when the actuating shaft 12 of the actuating mechanism is located at the middle position, that is, neither the actuating shaft external spline 1201 nor the actuating shaft internal spline 1202 of the actuating shaft 12 is engaged with the other splines; at the moment, the two-gear speed reducer is in a neutral position state; the power of the wheel end and the motor end are completely disconnected.
Example 2:
as shown in fig. 2: a two-gear speed reducer device comprises a driving device 1, a double-planet row, a clutch, a transmission gear 13, an output transmission mechanism 8 and a differential mechanism 9;
the double-planet row comprises a first sun gear 10, a gear ring 6 and a planet carrier 11, wherein the gear ring 6 is fixedly connected with the speed reducer shell 5;
the clutch comprises an actuating mechanism, the actuating mechanism is connected with the transmission gear 13, and the actuating mechanism can move in the axial direction connected with the transmission gear 13 under the driving of the driving device;
when the actuator is moved in the axial direction in connection with the transmission gear 13, the actuator can be connected with the planet carrier 11 or the first sun gear 10;
The transmission gear 13 is connected with the differential mechanism 9 through the output transmission mechanism 8; the large-torque gear shifting can be realized through the movable actuating mechanism, so that the whole vehicle has better power performance and fuel economy, the structure of the speed reducer is simplified, the size and the weight of the speed reducer are reduced, and the manufacturing and assembling cost is reduced.
Preferably, the clutch is a dog clutch.
Preferably, the driving device 1 is a driving motor, and the driving motor is connected with the second sun gear 3 through a motor rotor 2; may be used as an input.
In the embodiment of the present specification, the double planetary row further includes a second sun gear 3, a second planetary gear 7, and a first planetary gear 4;
the second sun gear 3 is meshed with the first planet gear 4, and the first planet gear 4 and the second planet gear 7 are coaxially connected through the planet carrier 11; the second planetary gear 7 meshes with the first sun gear 10, and the second planetary gear 7 meshes with the ring gear 6.
Specifically, the first sun gear 10 may be a large sun gear, and the second sun gear 3 may be a small sun gear; the first planet 4 may be a large planet and the second planet 7 may be a small planet.
Preferably, the first planet wheel 4 and the second planet wheel 7 are coaxially and fixedly connected, and are supported by a planet carrier 11.
In particular, the ring gear 6 may be the ring gear of the second planet wheel.
In the embodiment of the specification, the actuating mechanism comprises an actuating shaft 12, and an actuating shaft external spline 1201 and an actuating shaft internal spline 1202 which are arranged on the actuating shaft 12;
the execution shaft internal spline 1202 is meshed with a transmission gear external spline 1301 on the transmission gear 13;
the actuation shaft 12 is movable in an axial direction in engagement with the drive gear external spline 1301;
when the actuating shaft 12 is moved in the axial direction in which it meshes with the transmission gear 13, the external splines of the actuating shaft 12 can be connected to the planet carrier 11 or the internal splines of the actuating shaft 12 can be connected to the first sun gear 10.
Specifically, the driving device 1 can directly drive the actuating shaft 12 of the actuating mechanism to move in the axial direction meshed with the transmission gear external spline 1301;
in the embodiment of the present specification, a carrier internal spline 1101 is provided on one side of the carrier 11 close to the actuating shaft 12, and the actuating shaft external spline 1201 is in meshing connection with the carrier 11 through the carrier internal spline 1101;
A first sun gear external spline 1001 is arranged on one side of the first sun gear 10 close to the actuating shaft 12, and the actuating shaft internal spline 1202 is in meshed connection with the first sun gear 10 through the first sun gear external spline 1001.
In the embodiment of the present specification, the output transmission mechanism 8 includes a main reduction driving gear and a main reduction driven gear, the main reduction driving gear is engaged with the main reduction driven gear, the main reduction driving gear is connected with the transmission gear 13, and the main reduction driven gear is connected with the differential mechanism 9.
Specifically, the main reduction driving gear is meshed with the transmission gear 13; the driving reduction driven gear is meshed with a gear ring of the differential mechanism 9;
preferably, the transmission gear 23 may be a constant mesh gear.
In the embodiment of the present specification, the motor rotor 2 of the driving motor rotates forward to drive the second sun gear 3 to rotate, the second sun gear 3 drives the first planet gear 4 to rotate, and the second planet gear 7 rotates at the same rotation speed as the first planet gear 4; the second planet wheel 7 drives the first sun wheel 10 to rotate, and the second planet wheel 7 and the first planet wheel 4 drive the planet carrier 11 to rotate.
In the embodiment of the specification, when the actuating shaft 12 of the actuating mechanism is driven by the driving device 1 to move in the direction away from the double planetary row in the axial direction meshed with the transmission gear external spline 1301, the actuating shaft external spline 1201 can be meshed with the planet carrier internal spline 1101 to realize the first gear.
The power transmission path at this time is: the motor rotor 2 rotates forwards to drive the second sun gear 3 to rotate so as to input power, the second sun gear 3 drives the first planet gear 4 to rotate, and the second planet gear 7 and the first planet gear 4 rotate at the same rotating speed; the gear ring 6 is fixedly connected with the reducer shell 5; thus, the planet carrier 11 and the first sun gear 10 will rotate with the second planet gears 7 at a fixed speed ratio; power is transmitted to the transmission gear 13 through the combination of the actuating shaft external spline 1201 of the actuating shaft 12 and the planet carrier internal spline 1101, and the transmission gear 13 transmits the power to the wheel end through the output transmission mechanism 8 and the differential 9 so as to realize a first gear.
Example 3
As shown in fig. 3: a two-gear speed reducer device comprises a driving device 1, a double-planet row, a clutch, a transmission gear 13, an output transmission mechanism 8 and a differential mechanism 9;
The double-planet row comprises a first sun gear 10, a gear ring 6 and a planet carrier 11, wherein the gear ring 6 is fixedly connected with the speed reducer shell 5;
the clutch comprises an actuating mechanism, the actuating mechanism is connected with the transmission gear 13, and the actuating mechanism can move in the axial direction connected with the transmission gear 13 under the driving of the driving device;
when the actuator is moved in the axial direction in connection with the transmission gear 13, the actuator can be connected with the planet carrier 11 or the first sun gear 10;
the transmission gear 13 is connected with the differential mechanism 9 through the output transmission mechanism 8; the large-torque gear shifting can be realized through the movable actuating mechanism, so that the whole vehicle has better power performance and fuel economy, the structure of the speed reducer is simplified, the size and the weight of the speed reducer are reduced, and the manufacturing and assembling cost is reduced.
Preferably, the clutch is a dog clutch.
Preferably, the driving device 1 is a driving motor, and the driving motor is connected with the second sun gear 3 through a motor rotor 2; may be used as an input.
In the embodiment of the present specification, the double planetary row further includes a second sun gear 3, a second planetary gear 7, and a first planetary gear 4;
The second sun gear 3 is meshed with the first planet gear 4, and the first planet gear 4 and the second planet gear 7 are coaxially connected through the planet carrier 11; the second planetary gear 7 meshes with the first sun gear 10, and the second planetary gear 7 meshes with the ring gear 6.
Specifically, the first sun gear 10 may be a large sun gear, and the second sun gear 3 may be a small sun gear; the first planet 4 may be a large planet and the second planet 7 may be a small planet.
Preferably, the first planet wheel 4 and the second planet wheel 7 are coaxially and fixedly connected, and are supported by a planet carrier 11.
In particular, the ring gear 6 may be the ring gear of the second planet wheel.
In the embodiment of the specification, the actuating mechanism comprises an actuating shaft 12, and an actuating shaft external spline 1201 and an actuating shaft internal spline 1202 which are arranged on the actuating shaft 12;
the execution shaft internal spline 1202 is meshed with a transmission gear external spline 1301 on the transmission gear 13;
the actuation shaft 12 is movable in an axial direction in engagement with the drive gear external spline 1301;
when the actuating shaft 12 is moved in the axial direction in which it meshes with the transmission gear 13, the external splines of the actuating shaft 12 can be connected to the planet carrier 11 or the internal splines of the actuating shaft 12 can be connected to the first sun gear 10.
Specifically, the driving device 1 can directly drive the actuating shaft 12 of the actuating mechanism to move in the axial direction meshed with the transmission gear external spline 1301;
in the embodiment of the present specification, a carrier internal spline 1101 is provided on one side of the carrier 11 close to the actuating shaft 12, and the actuating shaft external spline 1201 is in meshing connection with the carrier 11 through the carrier internal spline 1101;
a first sun gear external spline 1001 is arranged on one side of the first sun gear 10 close to the actuating shaft 12, and the actuating shaft internal spline 1202 is in meshed connection with the first sun gear 10 through the first sun gear external spline 1001.
In the embodiment of the present specification, the output transmission mechanism 8 includes a main reduction driving gear and a main reduction driven gear, the main reduction driving gear is engaged with the main reduction driven gear, the main reduction driving gear is connected with the transmission gear 13, and the main reduction driven gear is connected with the differential mechanism 9.
Specifically, the main reduction driving gear is meshed with the transmission gear 13; the driving reduction driven gear is meshed with a gear ring of the differential mechanism 9;
preferably, the transmission gear 23 may be a constant mesh gear.
In the embodiment of the present specification, the motor rotor 2 of the driving motor rotates forward to drive the second sun gear 3 to rotate, the second sun gear 3 drives the first planet gear 4 to rotate, and the second planet gear 7 rotates at the same rotation speed as the first planet gear 4; the second planet wheel 7 drives the first sun wheel 10 to rotate, and the second planet wheel 7 and the first planet wheel 4 drive the planet carrier 11 to rotate.
In the embodiment of the present specification, when the driving device 1 drives the actuating shaft 12 of the actuating mechanism to move in the direction approaching the double planetary row in the axial direction meshing with the transmission gear external spline 1301, the actuating shaft internal spline 1202 can mesh with the first sun gear external spline 1001.
Specifically, the driving device 1 drives the actuating shaft 12 of the actuating mechanism to move in the direction close to the double planetary rows in the axial direction meshed with the transmission gear external spline 1301, so that the actuating shaft external spline 1201 can be disengaged from the planet carrier internal spline 1101, and then the neutral state is recovered; by adjusting the driving speed of the driving device 1, the rotating speeds at the two ends are synchronized, the actuating shaft 12 continues to move in the direction close to the double planetary rows in the axial direction meshed with the transmission gear external spline 1301, until the front end of the actuating shaft internal spline 1202 at the side close to the first sun gear 10 is meshed with the first sun gear external spline 1001, and the rear end of the actuating shaft internal spline 1202 is still meshed with the transmission gear external spline 1301, so that the first gear and the second gear are shifted.
The power transmission path at this time is: the motor rotor 2 rotates forwards to drive the second sun gear 3 to rotate so as to input power, the second sun gear 3 drives the first planet gear 4 to rotate, and the second planet gear 7 and the first planet gear 4 rotate at the same rotating speed; the gear ring 6 is fixedly connected with the reducer shell 5; thus, the planet carrier 11 and the first sun gear 10 will rotate with the second planet gears 7 at a fixed speed ratio; the power is transmitted to the transmission gear 13 through the combination of the execution shaft internal spline 1202 of the execution shaft 12 and the first sun gear external spline 1001, and the transmission gear 13 transmits the power to the wheel end through the output transmission mechanism 8 and the differential 9, so that the second gear is realized.
In another embodiment of the present description, reverse gear can be realized by reversing the motor rotor 2, and the first gear or the second gear can be selected to realize reverse gear according to specific working conditions, and the transmission path of the reverse gear is the same as that of the first gear and the second gear
Example 4:
a vehicle comprising a two-speed retarder device according to any of embodiments 1 to 3.
The jaw clutch replaces a wet clutch to realize combination with different gears, the movable execution shaft of the jaw clutch replaces a piston and a return spring in a hydraulic execution mechanism, and an actuator of the jaw clutch can adopt an electric control type driving source;
the planet row is of a single-stage duplex structure, meanwhile, a gear ring of the second planet wheel is fixedly connected with the shell of the speed reducer, the first planet wheel is fixedly connected with the second planet wheel, and the planet wheel is simple in structure and simultaneously realizes a large reduction ratio; the planet row is used as a speed reducing mechanism, so that the volume of the electric drive assembly can be effectively reduced; two transmission ratios can be realized, so that the whole vehicle can obtain better dynamic property and fuel economy;
The large-torque gear shifting mode superior to a conventional synchronizer or clutch is realized by adopting the jaw clutch as a key gear shifting element and combining the stronger speed regulating capacity of the motor relative to an engine; the two-gear speed reducer has the functions of neutral gear, first gear, second gear and reverse gear;
the high-speed differential mechanism adopts the structure integration design, realizes the highly integrated design of the driving device, the transmission and the differential mechanism, effectively reduces the volume and the weight of an electric driving system, and simultaneously reduces the cost.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A two-gear speed reducer device is characterized in that: comprises a driving device (1), a double planetary row, a clutch, a transmission gear (13), an output transmission mechanism (8) and a differential (9);
the double-planet row comprises a first sun gear (10), a gear ring (6) and a planet carrier (11), and the gear ring (6) is fixedly connected with the speed reducer shell (5);
the clutch comprises an actuating mechanism, the actuating mechanism is connected with the transmission gear (13), and the actuating mechanism can move in the axial direction connected with the transmission gear (13) under the driving of the driving device;
When the actuator is moved in the axial direction in connection with the transmission gear (13), the actuator can be connected to the planet carrier (11) or to the first sun gear (10);
the transmission gear (13) is connected with the differential (9) through the output transmission mechanism (8).
2. The two speed retarder device of claim 1, wherein: the double planetary row also comprises a second sun wheel (3), a second planet wheel (7) and a first planet wheel (4);
the second sun wheel (3) is meshed with the first planet wheel (4), and the first planet wheel (4) is coaxially connected with the second planet wheel (7) through the planet carrier (11); the second planet wheel (7) is in mesh with the first sun wheel (10), and the second planet wheel (7) is in mesh with the ring gear (6).
3. The two-speed reducer assembly according to claim 1 or 2, wherein: the actuating mechanism comprises an actuating shaft (12), and an actuating shaft external spline (1201) and an actuating shaft internal spline (1202) which are arranged on the actuating shaft (12);
the execution shaft internal spline (1202) is meshed with a transmission gear external spline (1301) on the transmission gear (13);
the actuating shaft (12) is movable in an axial direction in engagement with the transmission gear external spline (1301);
When the actuating shaft (12) is moved in the axial direction in which it meshes with the transmission gear (13), the external splines of the actuating shaft (12) can be connected to the planet carrier (11) or the internal splines of the actuating shaft (12) can be connected to the first sun gear (10).
4. The two speed retarder device of claim 3, wherein: a planet carrier internal spline (1101) is arranged on one side, close to the execution shaft (12), of the planet carrier (11), and the execution shaft external spline (1201) is in meshed connection with the planet carrier (11) through the planet carrier internal spline (1101);
one side of the first sun gear (10) close to the actuating shaft (12) is provided with a first sun gear external spline (1001), and the actuating shaft internal spline (1202) is in meshed connection with the first sun gear (10) through the first sun gear external spline (1001).
5. The two speed retarder device of claim 4, wherein: when the actuating shaft (12) moves in the axial direction of meshing with the drive gear external spline (1301) in a direction approaching the double planetary row, the actuating shaft internal spline (1202) can mesh with the first sun gear external spline (1001).
6. The two speed retarder device of claim 4, wherein: when the actuating shaft (12) moves in the axial direction of meshing with the transmission gear external spline (1301) away from the double row of planet gears, the actuating shaft external spline (1201) can mesh with the planet carrier internal spline (1101).
7. The two speed retarder device of claim 1, wherein: the output transmission mechanism (8) comprises a main reduction driving gear and a main reduction driven gear, the main reduction driving gear is meshed with the main reduction driven gear, the main reduction driving gear is connected with the transmission gear (13), and the main reduction driven gear is connected with the differential mechanism (9).
8. The two speed retarder device of claim 2, wherein: the driving device (1) is a driving motor, and the driving motor is connected with the second sun gear (3) through a motor rotor (2).
9. The two speed retarder device of claim 8, wherein: the motor rotor (2) of the driving motor rotates forwards to drive the second sun gear (3) to rotate, the second sun gear (3) drives the first planet gear (4) to rotate, and the second planet gear (7) and the first planet gear (4) rotate at the same rotating speed; the second planet wheel (7) drives the first sun wheel (10) to rotate, and the second planet wheel (7) and the first planet wheel (4) drive the planet carrier (11) to rotate.
10. A vehicle, characterized in that: comprising a two-speed retarder unit according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501709.5A CN111853179A (en) | 2020-06-04 | 2020-06-04 | Two-gear speed reducer device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501709.5A CN111853179A (en) | 2020-06-04 | 2020-06-04 | Two-gear speed reducer device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111853179A true CN111853179A (en) | 2020-10-30 |
Family
ID=72985447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010501709.5A Pending CN111853179A (en) | 2020-06-04 | 2020-06-04 | Two-gear speed reducer device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113928101A (en) * | 2021-11-11 | 2022-01-14 | 江苏华永复合材料有限公司 | Single-motor coaxial two-gear electric drive axle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207297760U (en) * | 2017-09-07 | 2018-05-01 | 宁波上中下自动变速器有限公司 | Speed changer and the automobile with the speed changer |
| CN108177512A (en) * | 2017-03-29 | 2018-06-19 | 上海迪鲲机电科技有限公司 | Two grades of speed change electricity of integrated form drive assembly system and application process |
| CN109099131A (en) * | 2018-08-30 | 2018-12-28 | 上海迪鲲机电科技有限公司 | A kind of electric drive transmission device and control method for electric vehicle |
| US10190665B2 (en) * | 2014-07-04 | 2019-01-29 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Drive system for a vehicle, and vehicle |
| CN110920367A (en) * | 2019-11-15 | 2020-03-27 | 科力远混合动力技术有限公司 | Coaxial two-gear electric drive axle |
| CN210591397U (en) * | 2019-07-15 | 2020-05-22 | 格特拉克（江西）传动系统有限公司 | Two-gear electric driving system structure of passenger car |
-
2020
- 2020-06-04 CN CN202010501709.5A patent/CN111853179A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10190665B2 (en) * | 2014-07-04 | 2019-01-29 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Drive system for a vehicle, and vehicle |
| CN108177512A (en) * | 2017-03-29 | 2018-06-19 | 上海迪鲲机电科技有限公司 | Two grades of speed change electricity of integrated form drive assembly system and application process |
| CN207297760U (en) * | 2017-09-07 | 2018-05-01 | 宁波上中下自动变速器有限公司 | Speed changer and the automobile with the speed changer |
| CN109099131A (en) * | 2018-08-30 | 2018-12-28 | 上海迪鲲机电科技有限公司 | A kind of electric drive transmission device and control method for electric vehicle |
| CN210591397U (en) * | 2019-07-15 | 2020-05-22 | 格特拉克（江西）传动系统有限公司 | Two-gear electric driving system structure of passenger car |
| CN110920367A (en) * | 2019-11-15 | 2020-03-27 | 科力远混合动力技术有限公司 | Coaxial two-gear electric drive axle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113928101A (en) * | 2021-11-11 | 2022-01-14 | 江苏华永复合材料有限公司 | Single-motor coaxial two-gear electric drive axle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108297673B (en) | Hybrid powertrain system | |
| US9234565B2 (en) | Two-speed transmission and electric vehicle | |
| CN211525449U (en) | Parallel shaft type two-gear electric driving system | |
| CN111114278B (en) | Hybrid power driving system and vehicle | |
| WO2022183835A1 (en) | Dual-motor hybrid power system and hybrid vehicle | |
| CN115972896B (en) | Multi-gear electric drive bridge transmission system | |
| WO2022041545A1 (en) | Three-gear parallel-shaft dual-motor three-planetary gear set hybrid power system | |
| CN212804095U (en) | Pure electric two-gear transmission structure and vehicle | |
| CN218777398U (en) | Three-gear electric drive bridge structure | |
| CN218777413U (en) | Electric drive bridge structure driven by single motor | |
| CN201992008U (en) | Transmission and vehicle including same | |
| US20150300459A1 (en) | Transmission for a motor vehicle | |
| CN108050222B (en) | Two keep off electric automobile electric drive system | |
| CN111853179A (en) | Two-gear speed reducer device and vehicle | |
| CN110056614B (en) | Three-gear automatic transmission based on three-clutch electric automobile | |
| CN108274987B (en) | Double-planet-row power coupling driving system | |
| CN215806075U (en) | Transmission, power assembly and vehicle | |
| CN110843502A (en) | Electromechanical coupling transmission device | |
| CN214001301U (en) | Dual motor driven multi-speed transmission for electrically driven vehicle | |
| CN215474438U (en) | Dual-motor single-planet-row hybrid power system | |
| CN113427994B (en) | Double-motor single-planetary-row hybrid power system | |
| CN116353335A (en) | Hybrid power transmission mechanism for vehicle | |
| CN210830342U (en) | Hybrid power gearbox | |
| CN115027247A (en) | Hybrid system adopting longitudinally-arranged double motors and vehicle | |
| CN210161895U (en) | Hybrid power driving system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201030 |