Wheel assembly and vehicle

Abstract

The utility model provides a wheel assembly and a vehicle, and the wheel assembly comprises a supporting assembly, a wheel assembly and a rotation driving mechanism; the supporting assembly comprises a sleeve and a rotating shaft; the rotating shaft is arranged in the sleeve and can rotate relative to the sleeve; the wheel assembly comprises wheels and a driving shaft, and the wheels can rotate around the axis of the driving shaft; the gear transmission assembly comprises a gear box and a gear set; the gear set is arranged in the gearbox, the input end of the gear set is connected with the output end of the rotating shaft, and the output end of the gear set is connected with the driving shaft; the side, close to the sleeve, of the gearbox is provided with a connecting end which is rotationally connected with the sleeve. The rotation driving mechanism is connected with the gear box and the sleeve and used for driving the wheel assembly and the gear transmission assembly to rotate around the rotating shaft of the supporting assembly. The ground clearance and the wheelbase of the vehicle can be adjusted according to different road conditions, and the passing performance and the maneuvering performance of the vehicle under severe road conditions and the high-speed stability and comfort of the vehicle on a flat road surface are both considered.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle suspension, and in particular to a wheel assembly and a vehicle. Background Art

[0002] At present, off-road vehicles and sedans are two common types of vehicles. When driving on unpaved roads and other harsh road conditions, off-road vehicles have better passing performance and maneuverability due to their large ground clearance and short wheelbase. However, when driving on relatively flat roads such as cities and highways, off-road vehicles have high wind resistance, poor high-speed stability and comfort due to their high body, large ground clearance and short wheelbase.

[0003] Unlike off-road vehicles, when a car is on a relatively flat road such as in a city or on a highway, it has low wind resistance, good high-speed stability and comfort due to its low body, small ground clearance and long wheelbase. However, when a car is driving on a bad road such as an unpaved road, its passing performance and maneuverability are poor due to its low body, small ground clearance and long wheelbase.

[0004] In order to take into account the vehicle's passing performance and maneuverability in bad road conditions as well as high-speed stability and comfort on flat roads, it is necessary to adjust the vehicle's ground clearance and wheelbase according to different road conditions. However, in the related art, the vehicle's ground clearance and wheelbase are difficult to adjust. Utility Model Content

[0005] The present application provides a wheel assembly and a vehicle, which can adjust the ground clearance and wheelbase of the vehicle according to different road conditions, taking into account the vehicle's passability and maneuverability in harsh road conditions as well as high-speed stability and comfort on flat roads.

[0006] In a first aspect, the present application provides a wheel assembly, the device comprising:

[0007] A support assembly comprises a sleeve and a rotating shaft; the rotating shaft is arranged in the sleeve and can rotate relative to the sleeve;

[0008] A wheel assembly, comprising a wheel and a drive shaft, wherein the wheel can rotate around the axis of the drive shaft;

[0009] A gear transmission assembly, comprising a gear box and a gear set; the gear set is arranged in the gear box, the input end of the gear set is connected to the output end of the rotating shaft, and the output end of the gear set is connected to the driving shaft; the gear box has a connecting end on a side close to the sleeve, and the connecting end is rotatably connected to the sleeve; and

[0010] The rotary drive mechanism is connected to the gear box and the sleeve, and is used to drive the wheel assembly and the gear transmission assembly to rotate around the rotation axis of the support assembly.

[0011] In the present application, due to the existence of the gear transmission assembly, the axis of the driving shaft of the wheel rotation does not coincide with the axis of the rotating shaft of the support assembly, and the wheel can do eccentric movement around the axis of the rotating shaft of the support assembly. Therefore, by adjusting the rotation angle of the wheel assembly around the axis of the rotating shaft of the support assembly through the rotating drive mechanism, the distance between the axis of the rotating shaft of the support assembly and the ground can be changed and the wheelbase can be changed. In this way, on the one hand, in bad road conditions, by adjusting the rotation angle of the wheel around the axis of the rotating shaft of the support assembly, the distance between the rotating shaft and the ground can be increased, which can not only increase the ground clearance of the vehicle and improve the vehicle's passing ability, but also reduce the wheelbase, improve the turning radius, and improve the maneuverability of the vehicle; on the other hand, on a flat road, by adjusting the rotation angle of the wheel around the axis of the rotating shaft of the support assembly, the distance between the rotating shaft and the ground can be reduced, and the ground clearance of the vehicle can be increased, thereby improving the high-speed stability and comfort of the vehicle. It can be seen that the ground clearance and wheelbase of the vehicle can be adjusted according to different road conditions through this scheme, taking into account the vehicle's passing performance and maneuverability in bad road conditions and the high-speed stability and comfort on a flat road.

[0012] In combination with the first aspect, in some possible implementations, the rotary drive mechanism adopts one of a worm gear transmission mechanism, a gear transmission mechanism and a chain transmission mechanism.

[0013] In combination with the first aspect and the above implementations, in some possible implementations, the worm gear transmission mechanism includes a motor, a worm and a worm wheel;

[0014] The motor and the worm are fixedly mounted on the sleeve, and the worm is connected to the output shaft of the motor;

[0015] The worm wheel is fixedly mounted on the outer periphery of the connecting end and meshes with the worm.

[0016] In combination with the first aspect and the above implementations, in some possible implementations, the gear set at least includes:

[0017] A first gear connected to an output end of the rotating shaft of the support assembly;

[0018] The second gear is meshed with the first gear, and the second gear is connected to the driving shaft.

[0019] In combination with the first aspect and the above implementations, in order to reduce the space occupied by the gear transmission assembly and make the structure of the wheel assembly more compact, in some possible implementations, a mounting cavity is provided on a side of the wheel close to the support assembly;

[0020] The gear transmission assembly is at least partially located in the mounting cavity.

[0021] In combination with the first aspect and the above implementations, in some possible implementations, the wheel assembly further includes a brake assembly; the brake assembly includes:

[0022] a brake disc mounted on the drive shaft;

[0023] A caliper cooperates with the brake disc to achieve braking of the wheel assembly.

[0024] In combination with the first aspect and the above-mentioned implementations, in order to reduce the volume of the entire wheel assembly, in certain possible implementations, the brake assembly is disposed in the mounting cavity and is located on a side of the gear transmission assembly away from the support assembly.

[0025] In combination with the first aspect and the above implementations, in order to improve working reliability and facilitate maintenance, in some possible implementations, the gear transmission assembly further includes:

[0026] a first bearing, wherein the connecting end is rotatably connected to the outer wall of the sleeve via the first bearing, and / or

[0027] A second bearing, the drive shaft is rotatably connected to the inner wall of the gear box through the second bearing.

[0028] In combination with the first aspect and the above implementation, in order to support the rotating shaft in the sleeve and improve the working reliability and stability of the rotating shaft, in some possible implementations, the support assembly further includes a plurality of third bearings.

[0029] The rotating shaft is rotatably connected to the inner wall of the sleeve through the third bearing.

[0030] In a second aspect, the present application further provides a vehicle, comprising the wheel assembly as described in any one of the first aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural schematic diagram of a wheel assembly provided in an embodiment of the present application;

[0032] Figure 2 It is a schematic structural diagram of another wheel assembly provided in an embodiment of the present application.

[0033] The description of the reference numerals in the figures is as follows:

[0034] 0—support assembly; 01—sleeve; 02—rotating shaft; 03—third bearing; 04—steering knuckle;

[0035] 1—wheel assembly; 10—wheel; 11—mounting cavity; 12—drive shaft; 13—brake assembly; 131—brake disc; 132—caliper;

[0036] 2—Gear transmission assembly;

[0037] 21—gear box; 211—connection end;

[0038] 22—gear set; 221—first gear; 222—second gear;

[0039] 23—first bearing;

[0040] 24—second bearing;

[0041] 3—rotational driving mechanism; 31—worm; 32—worm wheel. DETAILED DESCRIPTION

[0042] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0043] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0044] In order to take into account the vehicle's passing performance and maneuverability in bad road conditions as well as high-speed stability and comfort on flat roads, it is necessary to adjust the vehicle's ground clearance and wheelbase according to different road conditions. However, in the related art, the vehicle's ground clearance and wheelbase are difficult to adjust.

[0045] In order to solve the above technical problems, the embodiments of the present application provide a wheel assembly and a vehicle, which can adjust the ground clearance and wheelbase of the vehicle according to different road conditions, taking into account the vehicle's passability and maneuverability in harsh road conditions as well as high-speed stability and comfort on flat roads.

[0046] First, please refer to Figure 1 and Figure 2 In a first aspect of the present application, a wheel assembly is proposed, which includes a support component 0, a wheel component 1, a gear transmission component 2 and a rotation drive mechanism 3.

[0047] The support assembly 0 is used to provide support for the wheel assembly 1, and includes a sleeve 01 and a rotating shaft 02; the rotating shaft 02 is arranged in the sleeve 01 and can rotate relative to the sleeve 01. It should be noted that when the wheel assembly is installed at different positions of the vehicle, the overall structure of the support assembly 0 is different. For example, see Figure 1 When the wheel assembly is located on the integral drive axle of the vehicle, the sleeve 01 of the support assembly 0 is the axle housing of the integral drive axle, and the rotating shaft 02 of the support assembly 0 is the transmission shaft of the integral drive axle. At this time, the wheel assembly 1 of the wheel assembly is the driving wheel, and the power of the vehicle is output by the transmission shaft of the integral drive axle, that is, the rotating shaft 02 of the support assembly 0. Figure 2 When the wheel assembly is located at the steering axle of the vehicle, the support assembly 0 is a structural member arranged on the steering knuckle 04 of the steering axle close to the side of the wheel assembly 1. The steering axle supports the support assembly 0, and then the support assembly 0 provides support to the wheel assembly 1. At this time, the wheel assembly 1 of the wheel assembly is a driven wheel, and the rotating shaft 02 of the support assembly 0 does not provide power. In order to support the rotating shaft 02 in the sleeve 01 and improve the working reliability and stability of the rotating shaft 02, the support assembly 0 can also include a plurality of third bearings 03, and the rotating shaft 02 is rotatably connected to the inner wall of the sleeve 01 through the third bearings 03. Among them, the number of the third bearings 03 can be different due to the different positions of the wheel assembly being arranged on the vehicle. For example, the number of the third bearings 03 can be two, three, six, etc., and the designer can flexibly set it according to the actual situation.

[0048] The wheel assembly 1 includes a wheel 10 and a drive shaft 12, and the wheel 10 can rotate around the axis of the drive shaft 12. Among them, the wheel 10 is a rotating component between the tire and the drive shaft 12 that bears the load, and is usually composed of a rim and a spoke. The rim is a component on the wheel 10 that mounts and supports the tire, and the spoke is a supporting component on the wheel 10 between the drive shaft 12 and the rim. The rim and the spoke have various structures such as integral type and detachable type, which are not described in detail in this application. In addition, the wheel assembly 1 also includes a brake assembly 13; the brake assembly 13 is used to achieve braking of the wheel assembly 1, and includes a brake disc 131 and a caliper 132; the brake disc 131 is installed on the drive shaft 12; and the caliper 132 cooperates with the brake disc 131. The caliper 132 and the brake disc 131 in the brake assembly 13 can cooperate in various structures such as a fixed caliper disc type and a floating caliper disc type, and designers can flexibly choose according to actual braking needs. In order to reduce the volume of the entire wheel assembly, a mounting cavity 11 is provided on the side of the wheel 10 close to the support component 0; the brake component 13 can be arranged in the mounting cavity 11. The wheel 10 can be formed by welding a rim and a spoke with a split structure, or it can be formed by one-time stamping of a steel plate with an integral structure. When the wheel 10 is processed by welding, the rim can be a steel pipe or a ring-shaped part rolled with a plate, and the spoke is welded to the mounting hole at one end of the steel pipe or the ring-shaped part. When the wheel 10 is processed by stamping, part of the material of the stamped steel plate is concave to form the spoke, and the remaining part of the material can form the rim. Regardless of whether the welding process or the stamping process is used, the mounting cavity 11 can be formed between the spoke and the inner wall of the rim.

[0049] The gear transmission assembly 2 is an intermediate connecting member connecting the support assembly 0 and the wheel assembly 1, and is a core component for adjusting the ground clearance and wheelbase of the vehicle. Figure 1 and Figure 2, the gear transmission assembly 2 may include a gear box 21 and a gear set 22; the gear set 22 is arranged in the gear box 21, the input end of the gear set 22 is connected to the output end of the rotating shaft 02, and the output end of the gear set 22 is connected to the driving shaft 12. In some embodiments of the present application, the gear set 22 may include at least a first gear 221 and a second gear 222. Among them, the first gear 221 is connected to the output end of the rotating shaft 02 of the support assembly 0; the second gear 222 is meshed with the first gear 221, and the second gear 222 is connected to the driving shaft 12. It can be understood that the gears included in the gear set 22 are not limited to the first gear 221 and the second gear 222 in the above embodiment, and may also include a plurality of gears that cooperate with each other, such as a third gear, a fourth gear, a fifth gear, etc. The designer can flexibly design the gear set 22 with different numbers and matching relationships according to the needs of the vehicle's driving performance. It should be noted that at least two meshing gears in the gear set 22, such as the second gear 222 and the first gear 221, can make the axis of the driving shaft 12 of the wheel 10 rotate and the axis of the rotating shaft 02 of the support component 0 not coincide with each other, thereby making it possible for the wheel 10 to make eccentric motion around the axis of the rotating shaft 02 of the support component 0.

[0050] The gearbox 21 has a connecting end 211 on the side close to the sleeve 01, and the connecting end 211 is rotatably connected to the sleeve 01. In this way, the gear transmission assembly 2 including the gearbox 21 and the gear set 22 in the gearbox 21 can rotate about the sleeve 01 as a whole; and the sleeve 01 is coaxial with the rotating shaft 02, that is, the gear transmission assembly 2 can rotate about the axis of the rotating shaft 02 as a whole. The movable connection between the gearbox 21 and the sleeve 01 makes the gear transmission assembly 2 and the support assembly 0 no longer an integrated structure, which provides necessary preparation for adjusting the ground clearance and wheelbase of the vehicle. In addition, in order to improve the smooth and reliable rotation connection between the connecting end 211 and the sleeve 01 and facilitate maintenance, the gear transmission assembly 2 can also include a first bearing 23; the connecting end 211 of the first bearing 23 is rotatably connected to the outer wall of the sleeve 01 through the first bearing 23. Similarly, in order to improve the working stability of the drive shaft 12 and the second gear 222 and facilitate maintenance, the gear transmission assembly 2 may further include a second bearing 24; the drive shaft 12 is rotatably connected to the inner wall of the gear box 21 through the second bearing 24. In addition, in order to reduce the space occupied by the gear transmission assembly 2 and make the structure of the wheel assembly more compact, at least a portion of the gear transmission assembly 2 may be disposed in the mounting cavity 11 of the wheel 10. When the gear transmission assembly 2 is at least partially located in the mounting cavity 11 of the wheel 10, see Figure 1 and Figure 2 The brake assembly 13 can be located on a side of the gear transmission assembly 2 away from the support assembly 0.

[0051] The rotation drive mechanism 3 is connected to the gear box 21 and the sleeve 01, and is used to drive the wheel assembly 1 and the gear transmission assembly 2 to rotate around the rotation axis 02 of the support assembly 0. The rotation drive mechanism 3 can be a worm gear transmission mechanism, a gear transmission mechanism, a chain transmission mechanism, etc. Figure 1 and Figure 2 When the rotary drive mechanism 3 adopts a worm gear transmission mechanism, it can include a motor, a worm 31 and a worm wheel 32; the motor and the worm 31 can be fixedly mounted on the sleeve 01 by welding, bolt connection, etc. The worm 31 is connected to the output shaft of the motor. The worm wheel 32 can be fixedly mounted on the outer periphery of the connecting end 211 by welding, interference fit, etc., and the worm wheel 32 is meshed with the worm 31. It can be understood that by adopting a worm gear transmission mechanism, after the motor drives the wheel assembly 1 to the appropriate position and stops, the self-locking performance of the worm gear transmission can be used to effectively transfer the torque of the worm wheel 32 to the worm 31, and prevent the worm 31 from reversing, thereby locking the wheel assembly 1 in the appropriate position, improving the safety of the wheel assembly, and avoiding accidents. Similar to the worm gear transmission mechanism, the gear transmission mechanism and the chain transmission mechanism are connected to the gear box 21 and the sleeve 01, and can also drive the gear transmission assembly 2 and the wheel assembly 1 to rotate as a whole under the drive of the motor. Regarding the specific structure of the gear transmission mechanism and the chain transmission mechanism, designers can flexibly design them according to the corresponding performance requirements of different vehicle models, which will not be elaborated here.

[0052] In the present application, due to the existence of the gear transmission assembly 2, the axis of the driving shaft 12 of the wheel 10 does not coincide with the axis of the rotating shaft 02 of the support assembly 0, and the wheel 10 can make eccentric motion around the axis of the rotating shaft 02 of the support assembly 0. Therefore, by adjusting the rotation angle of the wheel 10 around the axis of the rotating shaft 02 of the support assembly 0 through the rotating drive mechanism 3, the distance between the axis of the rotating shaft 02 of the support assembly 0 and the ground can be changed and the wheelbase can be changed. In this way, on the one hand, in bad road conditions, by adjusting the rotation angle of the wheel 10 around the axis of the rotating shaft 02 of the support assembly 0, the distance between the rotating shaft 02 and the ground can be increased, which can not only increase the ground clearance of the vehicle and improve the vehicle's passing ability, but also reduce the wheelbase, improve the turning radius, and improve the maneuverability of the vehicle; on the other hand, on a flat road, by adjusting the rotation angle of the wheel 10 around the axis of the rotating shaft 02 of the support assembly 0, the distance between the axis of the rotating shaft 02 and the ground can be reduced, which can also reduce the ground clearance of the vehicle and increase the wheelbase, thereby improving the high-speed stability and comfort of the vehicle. It can be seen that this solution can adjust the ground clearance and wheelbase of the vehicle according to different road conditions, taking into account the vehicle's passing performance and maneuverability in harsh road conditions as well as high-speed stability and comfort on flat roads.

[0053] Secondly, the second aspect of the present application further proposes a vehicle, which includes the wheel assembly described in any one of the above embodiments.

[0054] The vehicle provided in the present application has all the beneficial effects of the wheel assembly of the above embodiment, as it has the wheel assembly of the above embodiment. The wheel assembly has been described in detail above and will not be described again here.

[0055] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0056] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wheel assembly, characterized in that: include: A support assembly (0) comprises a sleeve (01) and a rotating shaft (02); the rotating shaft (02) is arranged in the sleeve (01) and can rotate relative to the sleeve (01); A wheel assembly (1) comprises a wheel (10) and a drive shaft (12), wherein the wheel (10) is rotatable around the axis of the drive shaft (12); A gear transmission assembly (2), comprising a gear box (21) and a gear set (22); the gear set (22) is arranged in the gear box (21), the input end of the gear set (22) is connected to the output end of the rotating shaft (02), and the output end of the gear set (22) is connected to the driving shaft (12); the gear box (21) has a connecting end (211) on a side close to the sleeve (01), and the connecting end (211) is rotatably connected to the sleeve (01); as well as A rotary drive mechanism (3) is connected to the gear box (21) and the sleeve (01) and is used to drive the wheel assembly (1) and the gear transmission assembly (2) to rotate around the rotation axis (02) of the support assembly (0).

2. The wheel assembly according to claim 1, characterized in that: The rotary drive mechanism (3) adopts one of a worm gear transmission mechanism, a gear transmission mechanism and a chain transmission mechanism.

3. The wheel assembly according to claim 2, characterized in that: The rotary drive mechanism (3) adopts a worm gear transmission mechanism, and the worm gear transmission mechanism comprises a motor, a worm (31) and a worm wheel (32); The motor and the worm (31) are fixedly mounted on the sleeve (01), and the worm (31) is connected to the output shaft of the motor; The worm wheel (32) is fixedly mounted on the outer periphery of the connecting end (211) and meshes with the worm (31).

4. The wheel assembly according to claim 1, characterized in that: The gear set (22) at least comprises: A first gear (221) connected to an output end of the rotating shaft (02) of the support assembly (0); The second gear (222) is meshed with the first gear (221), and the second gear (222) is connected to the driving shaft (12).

5. The wheel assembly according to claim 1, characterized in that: A mounting cavity (11) is provided on a side of the wheel (10) close to the support assembly (0); The gear transmission assembly (2) is at least partially located in the installation cavity (11).

6. The wheel assembly according to claim 5, characterized in that: The wheel assembly (1) further comprises a brake assembly (13); the brake assembly (13) comprises: A brake disc (131) mounted on the drive shaft (12); A caliper (132) cooperates with the brake disc (131) to achieve braking of the wheel assembly (1).

7. The wheel assembly according to claim 6, characterized in that: The brake assembly (13) is arranged in the installation cavity (11) and is located on a side of the gear transmission assembly (2) away from the support assembly (0).

8. The wheel assembly according to claim 1, characterized in that: The gear transmission assembly (2) further comprises: a first bearing (23), the connection end (211) being rotatably connected to the outer wall of the sleeve (01) via the first bearing (23), and / or A second bearing (24), the drive shaft (12) is rotatably connected to the inner wall of the gear box (21) via the second bearing (24).

9. The wheel assembly according to claim 1, characterized in that: The support assembly (0) further comprises a plurality of third bearings (03), The rotating shaft (02) is rotatably connected to the inner wall of the sleeve (01) via the third bearing (03).

10. A vehicle, characterized in that: A wheel assembly comprising any one of claims 1 to 9.

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