CN111703294A - Double-support electric driving wheel - Google Patents
Double-support electric driving wheel Download PDFInfo
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- CN111703294A CN111703294A CN202010714134.5A CN202010714134A CN111703294A CN 111703294 A CN111703294 A CN 111703294A CN 202010714134 A CN202010714134 A CN 202010714134A CN 111703294 A CN111703294 A CN 111703294A
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- box body
- power output
- shaft
- driven gear
- driving gear
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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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
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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
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a double-support electric driving wheel which comprises a box body combination, a driving motor, a speed change assembly and a wheel hub, wherein the driving motor and the speed change assembly are positioned in the box body combination, the left side of the box body combination forms a first supporting part, and the right side of the box body combination extends out of a fixed shaft in the box body to form a second supporting part; the first supporting part and the second supporting part are used for mounting and supporting the driving wheel; the invention is arranged on the rear support structure of the vehicle and has stable structure, thereby improving the driving safety and the load capacity; meanwhile, the structure has enough installation space, can be provided with a speed reducing mechanism, is suitable for being driven by a high-speed motor, can greatly improve the torque output range of the electric vehicle, finally achieves good matching of running resistance and output torque, and improves the working efficiency; meanwhile, the double-support structure has good stress conditions and good overall stability, the size and the weight of each support can be reduced, the double-support structure is not influenced by the deflection moment, the manufacturing cost is reduced, the running stability is ensured, and the energy consumption is reduced.
Description
Technical Field
The invention relates to a motor vehicle wheel, in particular to a double-support electric driving wheel.
Background
New energy vehicles are more and more common in production and life; with the development of science and technology, electric driving wheels gradually enter the field of vehicle driving, most of the electric driving wheels are hub motors or wheel-side motors, the main difference between the hub motors and the wheel-side motors is the difference of the mounting positions of the motors, but the principle is not substantially different. The driving system of the hub motor forms a part of the hub, generally adopts outer rotor driving, the hub is connected with the outer rotor driving, the stator shaft is supported on a bottom fork, the hub is commonly adopted on two-wheeled electric vehicles, but no speed change device is arranged, therefore, the matching of output torque and driving resistance cannot be met, the energy consumption is high, the efficiency is low, and the hub motor is directly driven by the motor, the motor can only adopt a low-rotating-speed motor, and the hub has limited volume, limited motor power, large mass and large volume.
The wheel-side motor structure is characterized in that a driving assembly is hung on the wheel side, and the patent application with the patent application number of 201910470712.2 discloses a wheel-side motor structure which comprises a driving mechanism, a speed reducing mechanism and a wheel hub, wherein the driving mechanism inputs power to the speed reducing mechanism, and the speed reducing mechanism inputs the power to the wheel hub through a flange to drive a vehicle to run; the structure has the advantages that the output shafts of the driving mechanism and the speed reducing mechanism are on the same central line, and the driving mechanism and the speed reducing mechanism are integrated into a whole, so that the structure is compact, the volume is small, and the weight is light; in addition, the speed reducer adopts a parallel shaft type two-stage speed reducing structure, so that the installation is simple, the manufacturing cost is low, the reliability is high, the transmission efficiency is high, the reliability is high, meanwhile, the power output by the driving motor is directly output to the wheels through the speed reducer, and the whole vehicle structure is simplified, so that the speed reducer is very suitable for the upper structure of the current distributed driving hub driving electric vehicle; however, this structure still has major disadvantages: 1. the mounting support is arranged at the motor and is only a single support structure, so that the stability is poor, a large deflection torque is formed, and the support failure is easy to cause; a supporting structure with larger volume is forced to be selected, the whole weight is larger, and the cost of the supporting structure is higher; 2. the box body is of an integral structure, the manufacturability is poor, and the manufacturing cost is high. 3. The motor output is single cantilever structure in the whole transmission, stability is poor, thereby easily wearing and tearing influence motor life to influence transmission precision, the running noise appears easily, influences transmission efficiency.
Therefore, there is a need for an improved structure of an existing electric driving wheel, which has a structure with double supports, and the structure can be provided with a speed reduction mechanism, so that the torque output of the electric vehicle which can be greatly improved is suitable for high rotating speed and large torque, the manufacturing cost is reduced, the stability of operation is ensured, and the energy consumption is reduced.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a dual-support electric driving wheel, which has a dual-support structure, and the structure can be provided with a speed reduction mechanism, so as to greatly increase the torque output of the electric vehicle, and is suitable for high-speed and high-torque electric vehicles, reduce the manufacturing cost, and ensure the stability of operation, thereby reducing the energy consumption.
The invention discloses a double-support electric driving wheel which comprises a box body combination, a driving motor, a speed change assembly and a wheel hub, wherein the driving motor and the speed change assembly are positioned in the box body combination, the left side of the box body combination forms a first supporting part, the right side of the box body combination extends out of a fixed shaft in a box body, and the fixed shaft extends out of a shaft section of the box body to form a second supporting part; the first supporting part and the second supporting part are used for mounting and supporting the driving wheel.
Further, the box combination is a split structure and comprises a first box, a second box, a third box, a fourth box and a fifth box which are sequentially arranged from left to right and fixedly connected, the driving motor is located in the first box, the first supporting portion is located on the left side of the first box and fixed with the first box, and the end portion of the inner side of the fixed shaft is located at a set position in the box combination and fixed.
Further, the speed change assembly comprises a power output driving gear, a middle driven gear, a middle driving gear and a power output driven gear, the middle driven gear and the middle driving gear form a duplicate gear, the power output driving gear is in transmission fit with a power output shaft of the driving motor and is meshed with the middle driven gear, and the power output driven gear is in meshing transmission with the middle driving gear and is used for outputting power to the wheel hub.
Further, the fixed shaft axially penetrates through the fifth box body, and the end part of the inner side of the fixed shaft is fixed to the fourth box body; the speed change assembly further comprises an intermediate shaft, one end of the intermediate shaft is in rotating fit with the fifth box body, and the other end of the intermediate shaft is in rotating fit with the second box body; the middle driven gear and the middle driving gear are arranged on the middle shaft in a transmission matching mode to form a duplicate gear.
Furthermore, a power output shaft sleeve is sleeved outside the fixed shaft in a rotating fit mode, the power output driven gear is arranged on the power output shaft sleeve in a transmission fit mode, and one end of the power output shaft sleeve extends out of the fifth box body and is in transmission connection with the wheel hub.
Furthermore, the power output driving gear and the intermediate driven gear are located in a space formed by the second box and the third box after being combined, the intermediate driving gear and the power output driven gear are located in a space of the fifth box, and the intermediate shaft penetrates through the inner spaces of the second box, the third box, the fourth box and the fifth box;
the power output driving gear, the middle driven gear, the middle driving gear and the power output driven gear are all in speed reduction meshing transmission.
Furthermore, a fixed shaft seat extending towards the middle is formed in the fourth box body, the inner end of the fixed shaft is fixed on the fixed shaft seat, the outer end of the fixed shaft extends out of the fifth box body and is supported on the wheel hub in a rotating fit mode, and a shaft section extending out of the wheel hub forms a second supporting portion.
Furthermore, two axial sides of the power output driven gear are respectively and integrally formed with the power output driven gear to form a shaft shoulder sleeve sleeved on the power output shaft sleeve, the shaft shoulder sleeve positioned on the right side is supported on the fifth box body in a rotating fit mode, and the shaft shoulder sleeve positioned on the left side is supported on the fourth box body in a rotating fit mode.
Furthermore, two axial sides of the power output driving gear are respectively integrated with the power output driving gear to form a shaft shoulder sleeve, the shaft shoulder sleeve on the right side is supported on the third box body in a rotating fit mode, and the shaft shoulder sleeve on the left side is supported on the second box body in a rotating fit mode.
Further, a bearing seat for rotatably supporting a left shaft shoulder sleeve of the power output driven gear is formed on the right side of the fixed shaft seat; and the third box body extends inwards to form a bearing seat for rotatably supporting a right shaft shoulder sleeve of the power output driving gear.
The invention has the beneficial effects that: according to the double-support electric driving wheel, the structure that one end of the fixed shaft extends out is utilized, and the support at the motor side is combined, so that the electric driving wheel can form a double-side support structure, the double-support electric driving wheel is arranged on a rear support structure of a vehicle, the driving safety is improved, and the load capacity is improved; meanwhile, the structure has enough installation space, can be provided with a speed reducing mechanism, is suitable for being driven by a high-speed motor, can greatly improve the torque output range of the electric vehicle, finally achieves good matching of running resistance and output torque, and improves the working efficiency; meanwhile, the double-support structure has good stress conditions and good overall stability, the size and the weight of each support can be reduced, the double-support structure is not influenced by the deflection moment, the manufacturing cost is reduced, the running stability is ensured, and the energy consumption is reduced.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic axial sectional view of the present invention;
FIG. 2 is an axial cross-sectional view of the tank assembly;
fig. 3 is a schematic view of the mounting assembly.
Detailed Description
Fig. 1 is a schematic axial sectional structure of the present invention, fig. 2 is a schematic axial sectional view of a box assembly, and fig. 3 is a schematic mounting assembly structure, as shown in the drawings: the invention relates to a double-support electric driving wheel which comprises a box body combination, a driving motor 2, a speed change assembly and a wheel hub 15, wherein the driving motor 2 and the speed change assembly are positioned in the box body combination, the left side of the box body combination forms a first support part 1, the right side of the box body combination extends out of a fixed shaft 10 from the box body, and a shaft section of the fixed shaft 10 extending out of the box body forms a second support part 18; the first supporting part 1 and the second supporting part 18 are used for mounting and supporting the driving wheel, and the driving wheel is the whole double-supporting electric driving wheel of the invention; the left and right here correspond to the positions in the drawing, that is, the motor side is left; in the structure, a box body combination is arranged, and a speed reducing mechanism can be arranged in the box body combination, so that the purpose of speed change is achieved, and the possibility of large torque output is provided; meanwhile, the fixed shaft is not used for power output, a double-support structure is realized, the support stability of the vehicle is ensured, and the bearing capacity is improved.
In this embodiment, the box body assembly is a split structure, and includes a first box body 3, a second box body 5, a third box body 6, a fourth box body 7, and a fifth box body 11, which are sequentially arranged from left to right and are fastened, the driving motor 2 is located in the first box body 3, the first supporting portion 1 is located at the left side of the first box body 3 and is fixed with the first box body 3, the embodiment is integrally formed, and a split structure which is fastened may also be adopted; the end part of the inner side of the fixed shaft 10 is positioned and fixed at a set position in the box body assembly, the fixing modes are various, and the existing mechanical fixing modes can be adopted, including bolt fixing, riveting and the like; the whole structure is simple, and the combination of a plurality of box bodies ensures that the design and the installation of the interior of the box bodies are relatively simple, thereby simplifying the installation of a speed change mechanism, parts and a fixed shaft and the installation and the disassembly of power output; as shown in the figure, the first box body 3, the second box body 5, the third box body 6, the fourth box body 7 and the fifth box body 11 are sequentially connected through bolt fastening, so that the whole box body is of a split structure, and the whole deformation of the box body combination is avoided.
In this embodiment, the speed change assembly includes a power output driving gear 17, an intermediate driven gear 4, an intermediate driving gear 9 and a power output driven gear 13, the intermediate driven gear 4 and the intermediate driving gear 9 form a duplicate gear, the power output driving gear 17 is in transmission fit with a power output shaft of the driving motor 2 and is meshed with the intermediate driven gear, and the power output driven gear 13 is in meshing transmission with the intermediate driving gear 4 and is used for outputting power to the hub 15; the structure is simple, a speed change structure is formed, the electric driving wheel has the possibility of adopting a high-speed motor, and the torque output capacity is improved.
In the embodiment, the fixing shaft 10 axially penetrates through the fifth box body 11, the end part of the inner side of the fixing shaft is fixed to the fourth box body 7, and the fixing shaft is coaxial with a motor shaft, so that the integral structure is compact, the size is small, and the weight of the whole electric driving wheel is reduced; the speed change assembly further comprises an intermediate shaft 8, one end of the intermediate shaft 8 is rotationally matched with the fifth box body 11, the other end of the intermediate shaft 8 is rotationally matched with the second box body 5, and the intermediate shaft is arranged in parallel with the motor shaft and the fixed shaft, so that the whole structure is simple and compact; the middle driven gear 4 and the middle driving gear 9 are arranged on the middle shaft in a transmission fit manner to form a duplicate gear; the whole structure is simple and compact, the space layout is optimized, the manufacturing process of the box body can be reduced, and the cost is reduced.
In this embodiment, a power output shaft sleeve 12 is sleeved outside the fixed shaft 10 in a rotating fit manner, the power output driven gear 13 is arranged on the power output shaft sleeve 12 in a transmission fit manner, one end of the power output shaft sleeve 12 extends out of the fifth box body 11 and is in transmission connection with the hub 15, and as shown in the figure, the end part of the power output shaft sleeve 12 extending out of the fifth box body 11 forms a flange (T-shaped shaft sleeve) and is in transmission connection (bolt) with the hub through the flange; the power is output through the power output shaft sleeve, and the power is externally sleeved on the fixed shaft, so that the supporting strength of the whole structure is high, the force transmission capability of the shaft sleeve is greatly improved, the weight of parts can be reduced, and the bearing capacity is ensured.
In this embodiment, the power output driving gear 17 and the intermediate driven gear 4 are located in a space formed by the second casing 5 and the third casing 6 together after the casings are combined, the intermediate driving gear 9 and the power output driven gear 13 are located in a space of the fifth casing 11, and the intermediate shaft 8 penetrates through inner spaces of the second casing 5, the third casing 6, the fourth casing 7 and the fifth casing 11; the overall structure layout has better integrity, the installation space is saved, and meanwhile, the interference among all parts can be avoided, and the effects of reducing the volume and the weight are better achieved;
the meshing among the power output driving gear 17, the middle driven gear 4, the middle driving gear 9 and the power output driven gear 13 is deceleration meshing transmission, namely, the power output driving gear and the middle driven gear are in deceleration meshing, and the middle driving gear and the power output driven gear are in deceleration meshing, so that the output torque can be effectively improved.
In this embodiment, a fixed shaft seat 14 extending toward the middle is formed inside the fourth box 7, the inner end of the fixed shaft 10 is fixed to the fixed shaft seat 14, the outer end extends out of the fifth box 11 and is supported on the hub 15 in a rotating fit manner, a shaft segment axially extending out of the hub 15 forms a second supporting portion 18, the second supporting portion 18 is not necessarily a shaft segment where the fixed shaft extends out of the hub, and may also be a supporting member fixed with the fixed shaft, such as a supporting shaft sleeve or a manufactured shaft, and the like; as shown in the figure, the fixed shaft seat 14 is formed by ribs integrally formed (or adopting an installation structure) with the fourth box body 7, so that not only can the strength of the box body be increased, but also the fixed shaft can be fixed, and a connection mode of connecting the left end face of the fixed shaft (forming a connection flange, namely a T-shaped shaft) by a bolt is adopted, so that the structure is simple, and the installation and operation are convenient; the intermediate shaft is parallel to the fixed shaft and is positioned on the upper side of the fixed shaft, and the fixed shaft seat extends upwards from the lower part of the fourth box body, and the intermediate shaft and the fixed shaft do not interfere with each other.
In this embodiment, the two axial sides of the power output driven gear 13 are respectively integrally formed with the power output driven gear 13 to form a shaft shoulder sleeve sleeved on the power output shaft sleeve, the shaft shoulder sleeve on the right side is supported on the fifth case 11 in a rotating fit manner, the shaft shoulder sleeve on the left side is supported on the fourth case 7 in a rotating fit manner, the power output driven gear 13 is sleeved on the power output shaft sleeve 12, and the power output shaft sleeve 12 is sleeved on the fixed shaft 10 to form a three-layer mutual supporting structure and transmit a supporting load to the case assembly, thereby improving the load capacity of the whole electric drive wheel.
In this embodiment, two axial sides of the power output driving gear 17 are respectively formed integrally with the power output driving gear 17 to form a shaft shoulder sleeve, the shaft shoulder sleeve located on the right side is supported on the third box 6 in a rotating fit (through a rolling bearing), and the shaft shoulder sleeve located on the left side is supported on the second box 5 in a rotating fit (through a rolling bearing), as shown in the figure, a bearing seat hole for supporting the shaft shoulder sleeve on the left side is directly formed on the side wall of the second box 5, and the support rib 16 is formed on the third box and supports the shaft shoulder sleeve on the right side in a rotating fit through the support rib 16; in the structure, the power output driving gear is supported by the two boxes and is placed in the space between the two boxes, so that the compactness of the layout is ensured, meanwhile, the manufacturability of the boxes is ensured, and the manufacturing cost is saved; meanwhile, the driving motor shaft inputs power to the power output driving gear 17, and the two sides of the power output driving gear 17 are supported by rotating fit, so that better stability is formed, the output end of the motor is prevented from being in a cantilever structure, the service life of the motor is prolonged, the transmission precision is improved, and the transmission noise is reduced.
Among the above-mentioned scheme, the box combination is the sectional type structure, and overall structure forms the sectional type and supports, and the support position influences each other lessly to have better stability, finally have higher transmission precision, reduce the transmission noise.
In this embodiment, a bearing seat for rotatably supporting the left shaft shoulder sleeve of the power output driven gear 13 is formed on the right side of the fixed shaft seat 14, and the space of the fixed shaft seat is fully utilized, so that the overall structure is simple and compact; the third box body extends inwards to form a bearing seat for rotatably supporting a right shaft shoulder sleeve of the power output driving gear; as shown in the figure, the lower part of the third box 6 extends upwards to form a bearing seat for supporting the right shaft shoulder sleeve of the power output driving gear 17 in an integrated manner, so as to form a rib structure, effectively improve the overall stability of the box combination, and meanwhile, form relatively stable support for the power output driving gear.
Of course, for the first case 3, the second case 5, the third case 6, the fourth case 7 and the fifth case 11, bearing seats are arranged at positions for forming a right side shoulder sleeve for supporting a power output shaft of a motor, an intermediate shaft, a power output driven gear and a left side shoulder sleeve of a power output driving gear, and the side walls of the cases are directly machined and molded and appropriately thickened according to requirements, so that the process is not repeated herein; moreover, the rotational fit is generally realized by a rolling bearing, and is not described herein again; the upper, lower, left and right sides of the text are in accordance with the drawings and do not refer to the usage status.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a two support electric drive wheels which characterized in that: the automatic transmission device comprises a box body combination, a driving motor, a speed change assembly and a hub, wherein the driving motor and the speed change assembly are positioned in the box body combination, a first supporting part is formed at the left side of the box body combination, a fixed shaft extends out of the box body from the right side of the box body combination, and the fixed shaft extends out of a box body shaft section to form a second supporting part; the first supporting part and the second supporting part are used for mounting and supporting the driving wheel.
2. A dual support electric drive wheel as defined in claim 1, wherein: the box body assembly is of a split structure and comprises a first box body, a second box body, a third box body, a fourth box body and a fifth box body which are sequentially arranged from left to right and fixedly connected, the driving motor is located in the first box body, the first supporting portion is located on the left side of the first box body and fixed with the first box body, and the end portion of the inner side of the fixed shaft is located at a set position in the box body assembly and fixed.
3. A dual support electric drive wheel as defined in claim 1, wherein: the speed change assembly comprises a power output driving gear, a middle driven gear, a middle driving gear and a power output driven gear, the middle driven gear and the middle driving gear form a duplicate gear, the power output driving gear is in transmission fit with a power output shaft of the driving motor and is meshed with the middle driven gear, and the power output driven gear is in meshing transmission with the middle driving gear and is used for outputting power to the wheel hub.
4. A dual support electric drive wheel according to claim 3, wherein: the fixed shaft axially penetrates through the fifth box body, and the end part of the inner side of the fixed shaft is fixed on the fourth box body; the speed change assembly further comprises an intermediate shaft, one end of the intermediate shaft is in rotating fit with the fifth box body, and the other end of the intermediate shaft is in rotating fit with the second box body; the middle driven gear and the middle driving gear are arranged on the middle shaft in a transmission matching mode to form a duplicate gear.
5. A dual support electric drive wheel according to claim 3, wherein: the fixed shaft is sleeved with a power output shaft sleeve in a rotating fit mode, the power output driven gear is arranged on the power output shaft sleeve in a transmission fit mode, and one end of the power output shaft sleeve extends out of the fifth box body and is in transmission connection with the wheel hub.
6. A dual support electric drive wheel as defined in claim 1, wherein: the power output driving gear and the middle driven gear are positioned in a space formed by the second box body and the third box body together after the second box body and the third box body are combined, the middle driving gear and the power output driven gear are positioned in a space of the fifth box body, and the middle shaft penetrates through the inner spaces of the second box body, the third box body, the fourth box body and the fifth box body;
the power output driving gear, the middle driven gear, the middle driving gear and the power output driven gear are all in speed reduction meshing transmission.
7. A dual support electric drive wheel according to claim 3, wherein: a fixed shaft seat extending towards the middle is formed in the fourth box body, the inner end of the fixed shaft is fixed on the fixed shaft seat, the outer end of the fixed shaft extends out of the fifth box body and is supported on the wheel hub in a rotating fit mode, and a shaft section extending out of the wheel hub forms a second supporting portion.
8. A dual support electric drive wheel according to claim 7, wherein: the two axial sides of the power output driven gear and the power output driven gear are respectively integrated into a shaft shoulder sleeve sleeved outside the power output shaft sleeve, the shaft shoulder sleeve on the right side is supported on the fifth box body in a rotating fit mode, and the shaft shoulder sleeve on the left side is supported on the fourth box body in a rotating fit mode.
9. A dual support electric drive wheel as defined in claim 8, wherein: the two axial sides of the power output driving gear are respectively integrated with the power output driving gear to form a shaft shoulder sleeve, the shaft shoulder sleeve on the right side is supported on the third box body in a rotating fit mode, and the shaft shoulder sleeve on the left side is supported on the second box body in a rotating fit mode.
10. A dual support electric drive wheel as defined in claim 9, wherein: a bearing seat for rotatably supporting a left shaft shoulder sleeve of the power output driven gear is formed on the right side of the fixed shaft seat; and the third box body extends inwards to form a bearing seat for rotatably supporting a right shaft shoulder sleeve of the power output driving gear.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714134.5A CN111703294A (en) | 2020-07-22 | 2020-07-22 | Double-support electric driving wheel |
| PCT/CN2020/140721 WO2022016814A1 (en) | 2020-07-22 | 2020-12-29 | Dual-support electric drive wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714134.5A CN111703294A (en) | 2020-07-22 | 2020-07-22 | Double-support electric driving wheel |
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| Publication Number | Publication Date |
|---|---|
| CN111703294A true CN111703294A (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010714134.5A Pending CN111703294A (en) | 2020-07-22 | 2020-07-22 | Double-support electric driving wheel |
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| CN (1) | CN111703294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016814A1 (en) * | 2020-07-22 | 2022-01-27 | 西南大学 | Dual-support electric drive wheel |
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2020
- 2020-07-22 CN CN202010714134.5A patent/CN111703294A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016814A1 (en) * | 2020-07-22 | 2022-01-27 | 西南大学 | Dual-support electric drive wheel |
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