CN112977609B - Integrated power system with steering function, power assembly and vehicle - Google Patents
Integrated power system with steering function, power assembly and vehicle Download PDFInfo
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- CN112977609B CN112977609B CN202110416392.XA CN202110416392A CN112977609B CN 112977609 B CN112977609 B CN 112977609B CN 202110416392 A CN202110416392 A CN 202110416392A CN 112977609 B CN112977609 B CN 112977609B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Retarders (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention provides an integrated power system with a steering function, a power assembly and a vehicle, wherein the power system comprises: the device comprises a frame, a power assembly, a wheel assembly and a retainer; the power assembly is respectively connected with the frame and the retainer and provides power for the action of the wheel assembly; the wheel assembly is connected with the retainer; the power assembly adjusts the direction of the retainer to adjust the steering of the wheel assembly. According to the integrated power system with the steering function, the power assembly and the vehicle, the hub motor and the suspension system are integrated, the mass of the hub motor and the suspension system is completely converted into the sprung mass, the unsprung mass brought by the motor and a transmission system is effectively reduced, the space of a chassis is saved, and the driving, the braking and the steering are integrated, so that the modularization level of a chassis walking system can be effectively improved, the space of the chassis is saved, and the integrated power system with the steering function has great advantages when being applied to buses and logistics vehicles which require low chassis height.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an integrated power system with a steering function, a power assembly and a vehicle.
Background
The magnitude of the unsprung mass (unsprung mass) affects the safety and ride comfort of the vehicle. At present, a wheel-side and wheel-hub electric power system represented by an electric wheel is a research hotspot because a power system and a whole vehicle structure are simple and high in transmission efficiency, and the torque of each driving wheel can be independently controlled, so that the driving performance under the condition of a severe road surface can be improved. But because the motor is fixedly connected with the driving wheel, the unsprung mass of the automobile is increased.
Disclosure of Invention
The invention provides an integrated power system with a steering function, which is used for solving the defects that in the prior art, a hub motor is fixedly connected with a driving wheel, the unsprung mass of an automobile is increased, and the driving safety and smoothness of the automobile are further influenced.
The invention also provides a power assembly which is used for solving the defects that in the prior art, the hub motor is fixedly connected with the driving wheel, the unsprung mass of the automobile is increased, and the driving safety and the smoothness of the automobile are further influenced.
The invention also provides a vehicle, which is used for solving the defects that the unsprung mass of the vehicle is increased to influence the running smoothness and the wheel grounding of the vehicle and the unsprung mass of the wheel hub driving form is larger to be not beneficial to the running smoothness and the wheel grounding of the vehicle in the prior art, and the unsprung mass of the wheel hub driving form is larger.
According to a first aspect of the present invention, there is provided an integrated power system with a steering function, comprising: the device comprises a frame, a power assembly, a wheel assembly and a retainer;
the power assembly is respectively connected with the frame and the retainer and provides power for the action of the wheel assembly;
the wheel assembly is connected with the retainer;
the power assembly adjusts the direction of the retainer to adjust the steering of the wheel assembly.
According to one embodiment of the invention, the cage comprises: a first holding portion, a second holding portion, a third holding portion, and a first shaft body;
the first holding portion and the second holding portion are arranged at an interval;
the third holding portion is connected to the first holding portion and the second holding portion, respectively;
wherein the first shaft body is rotationally engaged with the first holding portion and the second holding portion, respectively.
Specifically, the embodiment of the retainer provides an installation position for the first shaft body by providing the first retaining portion, the second retaining portion and the third retaining portion, and the first shaft body is arranged so that the retainer and the wheel assembly can transmit power to the power assembly, thereby satisfying the rotation and steering of the wheel.
The first holding portion and the second holding portion are spaced apart from each other to provide a mounting position for the first shaft body, so that the first shaft body can achieve power transmission with the power assembly.
It should be noted that the first holding portion, the second holding portion, and the third holding portion may be frame-like structures that are approximately rod-like, or frame-like fixing structures that are formed by profiles or other processing methods, and the specific shapes of the first holding portion, the second holding portion, and the third holding portion are not described in an excessive way in the present invention, and the first holding portion, the second holding portion, and the third holding portion are mainly provided to provide the mounting position of the first shaft body and to achieve the connection relationship with the wheel assembly.
According to an embodiment of the present invention, further comprising: the first gear, the second gear and the shaft sleeve;
the first gear is connected with the output end of the power assembly;
the second gear is connected with the shaft sleeve and meshed with the first gear;
the shaft sleeve is sleeved outside the first shaft body and connected with the first shaft body;
wherein the shaft sleeve and the first shaft body rotate synchronously.
Specifically, the embodiment provides an implementation mode of transmission between a power assembly and a shaft body, and by arranging a first gear, a second gear and a shaft sleeve, the power assembly transmits power to the first shaft body, and transmits the power to a wheel assembly through the first shaft body, and finally the action of the wheel assembly, namely the running of a vehicle and the like, is realized.
It should be noted that the vehicle running here refers to the straight running of the vehicle, that is, the first gear and the second gear mainly function to convert the kinetic energy of the power assembly into the kinetic energy of the rotation of the wheel assembly.
It should be noted that, by providing the shaft sleeve, the relative position between the second gear and the first shaft body in the rotation direction is fixed, that is, the shaft sleeve and the first shaft body rotate synchronously.
According to an embodiment of the present invention, further comprising: a third gear, a fourth gear and a connecting rod;
the third gear is connected with the output end of the power assembly;
the fourth gear is in running fit with the shaft sleeve and is meshed with the third gear;
one end of the connecting rod is connected with the fourth gear, and the other end of the connecting rod is in running fit with the third retaining part.
Specifically, the embodiment provides another implementation mode of transmission of the power assembly and the shaft body, and by arranging the third gear, the fourth gear and the connecting rod, the power assembly transmits power to the retainer, and the steering of the wheel assembly is realized by driving the retainer to steer.
It should be noted that the third gear is engaged with the fourth gear, the fourth gear is rotatably connected with the shaft sleeve, one end of the connecting rod is fixedly connected with the fourth gear, and the other end of the connecting rod is connected with the retainer, when the fourth gear rotates, the connecting rod drives the third retaining portion to act, so that the retainer rotates integrally, and the wheel assembly is driven by the retainer to rotate due to the fixed connection between the retainer and the wheel assembly, so that the steering of the vehicle and the like during the driving process is realized.
According to an embodiment of the present invention, further comprising: the elastic piece is sleeved outside the first shaft body, one end of the elastic piece is connected with the shaft sleeve, and the other end of the elastic piece is connected with the first holding part or the second holding part;
wherein the shaft sleeve is in sliding fit with the first shaft body;
the connecting rod is in sliding fit with the third retaining part;
the elastic piece provides elastic force for the sliding of the shaft sleeve along the extending direction of the first shaft body.
Specifically, the embodiment provides an implementation mode of an elastic member, by arranging the elastic member, when a wheel assembly is subjected to an acting force to cause jumping, the wheel assembly and a retainer realize the jumping along the extending direction of a first shaft body through the elastic member, and the relative position between a shaft sleeve and a power assembly is unchanged.
It should be noted that, the shaft sleeve is in sliding fit with the first shaft body, so that an integrated structure is formed between the first shaft body and the retainer, that is, the first shaft body is only in rotational connection with the first retaining portion and the second retaining portion, but the distance in the extending direction of the first shaft body cannot be adjusted, and the arrangement enables the first shaft body to synchronously jump along with the retainer and the wheel assembly.
According to one embodiment of the invention, the power assembly comprises: a first power unit and a second power unit;
the first power unit is connected with the first gear;
the second power unit is connected with the third gear;
the output end of the second power unit is sleeved outside the output end of the first power unit.
Specifically, the present embodiment provides an implementation of a power assembly, which implements two power requirements of rotation and steering of a wheel assembly in the power assembly by providing a first power unit and a second power unit, wherein the first power unit is used for providing rotation power of the wheel assembly, and the second power unit is used for providing steering power of the wheel assembly.
It should be noted that the second power unit is sleeved outside the output end of the first power unit, that is, the second power unit and the first power unit are separately controlled, and are sleeved with each other to avoid mutual interference on the premise of realizing their respective functions, and the output end of the second power unit is of a sleeve-type structure.
According to one embodiment of the invention, the wheel assembly comprises: a second shaft body and a wheel body;
one end of the second shaft body is connected with the wheel body, and the other end of the second shaft body is fixedly connected with the retainer;
wherein the second shaft body is connected to the third holding portion.
Specifically, the embodiment provides an implementation manner of a wheel assembly, and by providing the second shaft body and the wheel body and connecting the second shaft body with the retainer, on one hand, corresponding power can be transmitted to the wheel body through the second shaft body, and on the other hand, an integrated structure is formed between the wheel body and the retainer by connecting the second shaft body with the third retaining portion of the retainer, that is, the adjustment of the rotation of the wheel body can be realized by driving the rotation of the retainer.
It should be noted that, in this embodiment, a transmission manner between the power assembly and the wheel assembly is not provided, and for this part, reference may be made to related designs in the art, and no corresponding limitation is made to this embodiment.
It should be further noted that, the wheel assembly further includes structures such as a brake caliper, a rim, a hub bearing, a half-axle sleeve, etc., and the specific structure of the wheel assembly is not limited in this embodiment, and this embodiment exemplifies corresponding functions of the wheel assembly, for example, the wheel body implements implementation of converting electric energy of the power assembly into mechanical energy, the second shaft body implements transmission of power between the power assembly and the wheel body, and the second shaft body implements sliding of the wheel body along the extending direction of the strut.
According to an embodiment of the present invention, further comprising: a first bevel gear and a second bevel gear;
the first bevel gear is connected with the end of the first shaft body at the outer side of the first holding part or the second holding part;
the second bevel gear is connected with one side of the second shaft body close to the third holding part and meshed with the first bevel gear.
Specifically, the embodiment provides another implementation mode of the power assembly and the shaft body, the conversion of the kinetic energy of the power assembly into the kinetic energy of the wheel body rotation is realized by arranging the first bevel gear and the second bevel gear, and the first bevel gear and the second bevel gear can jump along with the jumping of the wheel body.
According to a second aspect of the invention, a power assembly is provided, which has the integrated power system with the steering function.
According to a third aspect of the invention, there is provided a vehicle having an integrated powertrain system with a steering function as described above, or a powertrain as described above.
One or more technical solutions in the present invention have at least one of the following technical effects: according to the integrated power system with the steering function, the power assembly and the vehicle, the hub motor and the suspension system are integrated, the mass of the hub motor and the suspension system is completely converted into the sprung mass, the unsprung mass brought by the motor and a transmission system is effectively reduced, the space of a chassis is saved, and the driving, the braking and the steering are integrated, so that the modularization level of a chassis walking system can be effectively improved, the space of the chassis is saved, and the integrated power system with the steering function has great advantages when being applied to buses and logistics vehicles which require low chassis height.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an integrated powertrain with steering according to the present invention;
FIG. 2 is a second schematic layout diagram of the integrated power system with steering function according to the present invention;
FIG. 3 is a third schematic diagram illustrating the layout of the integrated power system with steering function according to the present invention;
FIG. 4 is a fourth schematic layout diagram of the integrated power system with steering function according to the present invention.
Reference numerals:
10. a frame; 20. a power assembly; 21. a first gear; 22. a third gear; 23. a first power unit; 24. a second power unit; 30. a wheel assembly; 31. a second shaft body; 32. a wheel body; 33. a second bevel gear; 40. a holder; 41. a first holding portion; 42. a second holding section; 43. a third holding section; 44. a first shaft body; 45. a first bevel gear; 46. a second gear; 47. a shaft sleeve; 48. a fourth gear; 49. a connecting rod; 50. an elastic member.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
FIG. 1 is a schematic diagram of an integrated power system with steering according to the present invention. The integrated power system with the steering function is mainly used for showing the overall arrangement relationship of the integrated power system with the steering function. As can be seen from fig. 1, the power assembly 20 of the present invention is connected to the frame 10, the holder 40 is connected to the wheel assembly 30, and the power assembly 20 realizes transmission with the first shaft 44 in the holder 40 through two sets of gears, thereby realizing adjustment of rotation and steering of the wheel assembly 30.
Further, the first shaft 44 realizes the transmission of the power assembly 20 via the first bevel gear 45 and the second bevel gear 33 via the first gear 21 and the second gear 46, and finally transmits the power to the wheel assembly 30, so as to realize the rotation of the wheel body 32.
Furthermore, the third gear 22 and the fourth gear 48 are used for driving the retainer 40 to rotate, and the retainer 40 rotates to drive the wheel assembly 30 to rotate, so as to rotate the wheel body 32.
Further, through setting up elastic component 50, realized turning into the unsprung mass of the transmission system of power component 20 etc. sprung mass, promptly through being connected power component 20 and frame 10 to and set up elastic component 50, effectively reduce the unsprung mass that motor and transmission system brought, and save the chassis space, and can use great power motor, effectively improve chassis traveling system's modularization level, it has great advantage to be applied to on requiring bus and the commodity circulation car that the chassis height is low.
Further, the shaft sleeve 47 and the connecting rod 49 realize the sliding of the retainer 40 along the extending direction of the first shaft body 44, that is, the wheel assembly 30 can jump along the extending direction of the first shaft body 44, and the relative positions of the first gear 21, the second gear 46, the third gear 22 and the fourth gear 48 and the power assembly 20 are unchanged due to the shaft sleeve 47 and the connecting rod 49, so that the arrangement realizes the reduction of unsprung mass and improves the running safety and smoothness of the vehicle.
Fig. 2 is a second schematic layout diagram of the integrated power system with steering function provided by the present invention. Fig. 2 is mainly used to show the internal structure of the retainer 40, and as can be seen from fig. 2, the retainer 40 includes a first retaining portion 41, a second retaining portion 42, a third retaining portion 43 and a first shaft 44, wherein the first shaft 44 is connected to the first retaining portion 41 and the second retaining portion 42 respectively, and the third retaining portion 43 is connected to the second shaft 31, so that the rotation of the wheel assembly 30 by the retainer 40 and the jumping of the retainer 40 and the wheel assembly 30 along the extending direction of the first shaft 44 are realized.
Fig. 3 is a third schematic layout diagram of the integrated power system with steering function provided by the invention. Fig. 3 is primarily used to show the mating relationship between the first gear 21 and the second gear 46, i.e., the rotation of the wheel assembly 30. The power of the power assembly 20 is transmitted to the wheel assembly 30 through the meshing of the first gear 21 and the second gear 46 and the meshing of the first bevel gear 45 and the second bevel gear 33, so that the wheel body 32 rotates.
FIG. 4 is a fourth schematic layout diagram of the integrated power system with steering function according to the present invention. Fig. 4 is primarily intended to show the mating relationship between the third gear 22 and the fourth gear 48, i.e., the steering of the wheel assembly 30. Through the meshing of the third gear 22 and the fourth gear 48 and the connection rod 49 respectively connecting the fourth gear 48 and the third holding portion 43, when the third gear 22 drives the fourth gear 48 to rotate, the fourth gear 48 transmits power from the connection rod 49 to the retainer 40, the retainer 40 rotates along with the fourth gear 48 under the driving of the connection rod 49, and further, the steering of the wheel assembly 30 is realized.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In some embodiments of the present invention, as shown in fig. 1 to 4, the present disclosure provides an integrated power system with steering function, including: frame 10, power assembly 20, wheel assembly 30 and retainer 40; the power assembly 20 is respectively connected with the frame 10 and the retainer 40 and provides power for the action of the wheel assembly 30; the wheel assembly 30 is connected with the holder 40; wherein, the power assembly 20 adjusts the orientation of the retainer 40 to realize the adjustment of the steering of the wheel assembly 30.
In detail, the invention provides an integrated power system with a steering function, which is used for solving the defects that in the prior art, a hub motor is fixedly connected with a driving wheel, the unsprung mass of an automobile is increased, and the driving safety and the smoothness of the automobile are further influenced.
In some possible embodiments of the invention, the cage 40 comprises: a first holding portion 41, a second holding portion 42, a third holding portion 43, and a first shaft body 44; the first holding portion 41 and the second holding portion 42 are provided at intervals; the third holding portion 43 is connected to the first holding portion 41 and the second holding portion 42, respectively; wherein the first shaft body 44 is rotatably engaged with the first holding portion 41 and the second holding portion 42, respectively.
Specifically, the present embodiment provides an embodiment of the retainer 40, which provides an installation position for the first shaft body 44 by providing the first retaining portion 41, the second retaining portion 42 and the third retaining portion 43, and the first shaft body 44 is provided, so that the retainer 40 and the wheel assembly 30 can transmit power with the power assembly 20, and the rotation and steering of the wheel can be satisfied.
It should be noted that the first holding portion 41 and the second holding portion 42 are spaced apart from each other to provide a mounting position for the first shaft 44, so that the first shaft 44 can transmit power to the power assembly 20, and in this arrangement, the first shaft 44 may be parallel to the rotation axis direction of the power output of the power assembly 20.
It should be noted that the first holding portion 41, the second holding portion 42, and the third holding portion 43 may be a frame-like structure with a substantially rod shape, or a frame-like fixing structure formed by a profile or other processing method, and the specific shapes of the first holding portion 41, the second holding portion 42, and the third holding portion 43 are not described in an excessive way in the present invention, and the first holding portion 41, the second holding portion 42, and the third holding portion 43 are mainly provided to provide the mounting position of the first shaft body 44 and to realize the connection relationship with the wheel assembly 30.
In some possible embodiments of the present invention, the method further includes: a first gear 21, a second gear 46, and a bushing 47; the first gear 21 is connected with the output end of the power assembly 20; the second gear 46 is connected with the shaft sleeve 47 and meshed with the first gear 21; the shaft sleeve 47 is sleeved outside the first shaft 44 and connected with the first shaft 44; wherein the sleeve 47 rotates synchronously with the first shaft 44.
Specifically, in the present embodiment, the first gear 21, the second gear 46 and the bushing 47 are provided to realize that the power assembly 20 transmits power to the first shaft 44 and then to the wheel assembly 30 through the first shaft 44, and finally realizes the operation of the wheel assembly 30, that is, the running of the vehicle and the like.
It should be noted that the vehicle running here refers to straight running of the vehicle, that is, the first gear 21 and the second gear 46 mainly function to convert the kinetic energy of the power assembly 20 into the kinetic energy of the rotation of the wheel assembly 30.
It should be noted that, by providing the bushing 47, the relative position between the second gear 46 and the first shaft 44 is fixed in the rotation direction, that is, the bushing 47 rotates synchronously with the first shaft 44.
In some possible embodiments of the present invention, the method further includes: third gear 22, fourth gear 48, and connecting rod 49; the third gear 22 is connected with the output end of the power assembly 20; the fourth gear 48 is in running fit with the sleeve 47 and is meshed with the third gear 22; one end of the connecting rod 49 is connected to the fourth gear 48, and the other end is rotationally engaged with the third holding portion 43.
Specifically, the present embodiment provides another embodiment of the power assembly 20 transmitting with the shaft, and by providing the third gear 22, the fourth gear 48 and the connecting rod 49, the power assembly 20 transmits power to the holder 40, and by driving the holder 40 to turn, the wheel assembly 30 is turned.
It should be noted that the third gear 22 is meshed with the fourth gear 48, the fourth gear 48 is rotatably connected with the bushing 47, one end of the connecting rod 49 is fixedly connected with the fourth gear 48, and the other end of the connecting rod 49 is connected with the holder 40, when the fourth gear 48 rotates, the connecting rod 49 drives the third holding portion 43 to operate, so that the holder 40 rotates integrally, and the holder 40 and the wheel assembly 30 are fixedly connected, so that the wheel assembly 30 rotates under the driving of the holder 40, that is, the vehicle and the like are steered during the driving.
In some possible embodiments of the present invention, the method further includes: the elastic element 50 is sleeved outside the first shaft body 44, one end of the elastic element 50 is connected with the shaft sleeve 47, and the other end of the elastic element 50 is connected with the first holding part 41 or the second holding part 42; wherein, the shaft sleeve 47 is in sliding fit with the first shaft body 44; the connecting rod 49 is slidably fitted with the third holding portion 43; the elastic member 50 provides an elastic force for sliding the sleeve 47 in the extending direction of the first shaft body 44.
Specifically, the present embodiment provides an embodiment of the elastic element 50, by providing the elastic element 50, when the wheel assembly 30 is subjected to a force to cause a bounce, the elastic element 50 can absorb the corresponding force, the wheel assembly 30 and the retainer 40 can bounce along the extending direction of the first shaft 44 through the elastic element 50, and the relative position between the shaft sleeve 47 and the power assembly 20 is not changed, such an arrangement connects the power assembly 20 and the frame 10, completely converts the mass of the power assembly 20 into a sprung mass, effectively reduces the unsprung mass brought by the motor (the power assembly 20) and the transmission system, and enables the vehicle with the power system to run more safely and smoothly.
It should be noted that the bushing 47 is slidably engaged with the first shaft 44, so that an integral structure is formed between the first shaft 44 and the retainer 40, that is, the first shaft 44 is only rotatably connected with the first retaining portion 41 and the second retaining portion 42, but the distance along the extending direction of the first shaft 44 cannot be adjusted, and this arrangement enables the first shaft 44 to synchronously jump with the retainer 40 and the wheel assembly 30.
In some possible embodiments of the invention, the power assembly 20 comprises: a first power unit 23 and a second power unit 24; the first power unit 23 is connected with the first gear 21; the second power unit 24 is connected with the third gear 22; wherein, the output end of the second power unit 24 is sleeved outside the output end of the first power unit 23.
Specifically, the present embodiment provides an embodiment of the power assembly 20, and the first power unit 23 and the second power unit 24 are provided to achieve two power requirements of rotation and steering of the wheel assembly 30 in the power assembly 20, wherein the first power unit 23 is used for providing rotation power of the wheel assembly 30, and the second power unit 24 is used for providing steering power of the wheel assembly 30.
It should be noted that the second power unit 24 is sleeved outside the output end of the first power unit 23, that is, the second power unit 24 and the first power unit 23 are separately controlled, and are sleeved with each other to avoid mutual interference on the premise of realizing their respective functions, and the output end of the second power unit 24 is of a sleeve-type structure.
In some possible embodiments of the invention, the wheel assembly 30 comprises: the second shaft body 31 and the wheel body 32; one end of the second shaft body 31 is connected with the wheel body 32, and the other end of the second shaft body 31 is fixedly connected with the retainer 40; the second shaft 31 is connected to the third holding portion 43.
Specifically, the present embodiment provides an embodiment of the wheel assembly 30, in which the second shaft 31 and the wheel body 32 are provided, and the second shaft 31 is connected to the holder 40, so that on one hand, corresponding power transmission to the wheel body 32 can be achieved through the second shaft 31, and on the other hand, through connection of the second shaft 31 and the third holding portion 43 of the holder 40, an integrated structure is formed between the wheel body 32 and the holder 40, that is, rotation of the wheel body 32 can be adjusted by driving rotation of the holder 40.
It should be noted that, in this embodiment, a transmission manner between the power assembly 20 and the wheel assembly 30 is not provided, and for this part, reference may be made to related designs in the art, and no corresponding limitation is made to this in this embodiment.
It should be further noted that the wheel assembly 30 further includes structures such as a brake caliper, a wheel rim, a wheel hub bearing, a half-sleeve 47 tube, etc., and the specific structure of the wheel assembly 30 is not limited in this embodiment, and this embodiment is an example of the corresponding functions of the wheel assembly 30, for example, the wheel body 32 is used to convert the electric energy of the power assembly 20 into the mechanical energy, the second shaft 31 is used to transmit the power between the power assembly 20 and the wheel body 32, and the second shaft 31 is used to enable the wheel body 32 to slide along the extending direction of the strut.
In some possible embodiments of the present invention, the method further includes: a first bevel gear 45 and a second bevel gear 33; a first bevel gear 45 is connected to an end of the first shaft 44 outside the first holding portion 41 or the second holding portion 42; the second bevel gear 33 is connected to the second shaft body 31 on the side close to the third holding portion 43, and meshes with the first bevel gear 45.
Specifically, the present embodiment provides another embodiment in which the power assembly 20 is in transmission with a shaft, the conversion of the kinetic energy of the power assembly 20 into the kinetic energy of the rotation of the wheel 32 is realized by providing the first bevel gear 45 and the second bevel gear 33, and the first bevel gear 45 and the second bevel gear 33 can jump with the jumping of the wheel 32.
In some embodiments of the invention, the present disclosure provides a powertrain having an integrated power system with steering as described above.
In detail, the invention also provides a power assembly which is used for solving the defects that the unsprung mass of an automobile is increased and the running safety and smoothness of the automobile are influenced because the hub motor and the suspension system are integrated and the mass of the hub motor and the suspension system is completely converted into the sprung mass in the prior art, so that the unsprung mass brought by the motor and a transmission system is effectively reduced, the space of a chassis is saved, and the driving, the braking and the steering are combined into a whole, so that the modularization level of a chassis walking system can be effectively improved, the space of the chassis is saved, and the power assembly has great advantages when being applied to buses and logistics vehicles which require low chassis height.
In some embodiments of the invention, the present disclosure provides a vehicle having an integrated powertrain with steering as described above, or a powertrain as described above.
In detail, the invention further provides a vehicle, which is used for solving the defects that the unsprung mass of the vehicle is increased to influence the running smoothness and the wheel grounding of the vehicle due to the fact that a wheel hub motor of the vehicle is fixedly connected with a driving wheel in the prior art, and the unsprung mass of a wheel hub driving mode is large and is not beneficial to the running smoothness and the wheel grounding of the vehicle.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (6)
1. An integrated power system with steering, comprising: the device comprises a frame, a power assembly, a wheel assembly and a retainer;
the power assembly is respectively connected with the frame and the retainer and provides power for the action of the wheel assembly;
the wheel assembly is connected with the retainer;
the power assembly adjusts the direction of the wheel assembly by adjusting the orientation of the retainer;
the holder includes: a first holding portion, a second holding portion, a third holding portion, and a first shaft body;
the first holding portion and the second holding portion are arranged at an interval;
the third holding portion is connected to the first holding portion and the second holding portion, respectively;
wherein the first shaft body is rotationally engaged with the first holding portion and the second holding portion, respectively;
further comprising: the first gear, the second gear and the shaft sleeve;
the first gear is connected with the output end of the power assembly;
the second gear is connected with the shaft sleeve and meshed with the first gear;
the shaft sleeve is sleeved outside the first shaft body and connected with the first shaft body;
the shaft sleeve and the first shaft body rotate synchronously;
further comprising: a third gear, a fourth gear and a connecting rod;
the third gear is connected with the output end of the power assembly;
the fourth gear is in running fit with the shaft sleeve and is meshed with the third gear;
one end of the connecting rod is connected with the fourth gear, and the other end of the connecting rod is in running fit with the third retaining part;
further comprising: the elastic piece is sleeved outside the first shaft body, one end of the elastic piece is connected with the shaft sleeve, and the other end of the elastic piece is connected with the first holding part or the second holding part;
wherein the shaft sleeve is in sliding fit with the first shaft body;
the connecting rod is in sliding fit with the third retaining part;
the elastic piece provides elastic force for the sliding of the shaft sleeve along the extending direction of the first shaft body.
2. The integrated drive system with steering function according to claim 1, wherein said power assembly comprises: a first power unit and a second power unit;
the first power unit is connected with the first gear;
the second power unit is connected with the third gear;
the output end of the second power unit is sleeved outside the output end of the first power unit.
3. The integrated drive system with steering function according to claim 1 or 2, wherein the wheel assembly includes: a second shaft body and a wheel body;
one end of the second shaft body is connected with the wheel body, and the other end of the second shaft body is fixedly connected with the retainer;
wherein the second shaft body is connected to the third holding portion.
4. The integrated drive system with steering function according to claim 3, characterized by further comprising: a first bevel gear and a second bevel gear;
the first bevel gear is connected with the end of the first shaft body at the outer side of the first holding part or the second holding part;
the second bevel gear is connected with one side of the second shaft body close to the third holding part and meshed with the first bevel gear.
5. A power unit characterized by having an integrated drive system with steering function of any one of the above claims 1 to 4.
6. A vehicle characterized by having an integrated drive system with steering function of any one of the above claims 1 to 4, or a power train of the above claim 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110416392.XA CN112977609B (en) | 2021-04-19 | 2021-04-19 | Integrated power system with steering function, power assembly and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110416392.XA CN112977609B (en) | 2021-04-19 | 2021-04-19 | Integrated power system with steering function, power assembly and vehicle |
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| CN112977609A CN112977609A (en) | 2021-06-18 |
| CN112977609B true CN112977609B (en) | 2021-10-19 |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008015825A1 (en) * | 2008-03-27 | 2009-10-01 | Daimler Ag | Hub drive for a motor vehicle |
| CN102555720A (en) * | 2012-01-16 | 2012-07-11 | 同济大学 | Speed-reducing wheel-rim driving system using motor as power vibration absorber |
| CN102555772A (en) * | 2012-01-16 | 2012-07-11 | 同济大学 | Speed reduction type hub driving system with function of power shock absorption |
| CA2778845A1 (en) * | 2012-05-25 | 2013-11-25 | Pantero Technologies Inc. | Electrical drive system for drive wheels of a vehicle |
| CN203126506U (en) * | 2013-03-28 | 2013-08-14 | 同济大学 | Integrated single swing arm suspension conical-cylindrical gear speed reduction hub drive system |
| CN108274988B (en) * | 2017-01-06 | 2022-12-06 | 罗伯特·博世有限公司 | Wheel-side electric driving system with dynamic vibration absorption function |
| CN107244377B (en) * | 2017-07-04 | 2019-08-06 | 李燊 | Wheel hub electric motor of electric vehicle and wheel hub electric motor of electric vehicle control method |
| CN107458221A (en) * | 2017-08-31 | 2017-12-12 | 安徽工程大学 | A kind of double reduction formula Direct wheel drives system |
| CN108382189A (en) * | 2018-02-12 | 2018-08-10 | 合肥工业大学 | It is a kind of to keep straight on and traversing dynamical system |
| DE102019105056A1 (en) * | 2019-02-07 | 2020-08-13 | Schaeffler Technologies AG & Co. KG | Gear unit with a sliding sleeve for converting four switching positions; Powertrain and motor vehicle |
| CN211969149U (en) * | 2019-11-29 | 2020-11-20 | 比亚迪股份有限公司 | Vehicle and driving mechanism thereof |
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