Supporting seat for omnidirectional wheel, omnidirectional wheel and vehicle

Abstract

The utility model discloses a supporting seat for an omnidirectional wheel, the omnidirectional wheel and a vehicle, the supporting seat is arranged in the side direction of a rolling wheel and rotatably connected with the rolling wheel, the supporting seat comprises a surrounding plate and an end plate, and the end plate is fixedly connected with one end of the surrounding plate; a first rotating part is arranged on one side, facing the coaming, of the end plate; a second rotating part is arranged on one side, deviating from the coaming, of the end plate; a rotating shaft is rotatably arranged on the roller, one end of the rotating shaft is connected with the first rotating part, and the other end of the rotating shaft is connected with the second rotating part on the adjacent supporting seat; the rotating shaft on each roller is connected to the two adjacent supporting seats at the same time, so that the two supporting seats can support one roller at the same time, when a certain roller makes contact with the working surface and bears large force, the two supporting seats are stressed at the same time, and the situation that the single supporting seat is damaged due to too large force can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of steering wheel assembly technology, and in particular to a support base for an omnidirectional wheel, an omnidirectional wheel, and a vehicle. Background Technology

[0002] An omnidirectional wheel is a wheel assembly installed on a vehicle to move along its direction of travel and to turn laterally in multiple directions. An omnidirectional wheel includes a hub and multiple rollers arranged on the outer contour of the hub. These rollers can rotate relative to the hub. The rotation of the hub moves the vehicle along its direction of travel, while the rotation of the rollers relative to the hub enables the omnidirectional wheel to move laterally.

[0003] For example, the patent with publication number "CN107364279A" and patent name "Vehicle and Omnidirectional Wheel" describes: The omnidirectional wheel includes a rotating component that can rotate around the axle and multiple rollers mounted on the rotating component. The rollers can rotate freely around their own central axis, and the central axis of each roller is set in a plane orthogonal to the axle. The central axis of the roller intersects the radial direction of the rotating component and forms an acute angle. The roller has a large diameter end and a small diameter end, and the diameter of the roller gradually decreases from the large diameter end to the small diameter end. The large diameter end of the roller is provided with a recess. Two adjacent rollers are referred to as the first roller and the second roller, respectively. A part of the small diameter end of the first roller extends into the recess of the large diameter end of the second roller, so that the outer contours of each roller are arranged on the same circumference centered on the axle.

[0004] As described in the aforementioned patent, rollers typically have multiple inwardly grooved annular grooves to enhance their grip, drainage, and other performance characteristics. As the rollers rotate, various types of debris, dirt, and other foreign objects on the road tend to accumulate in the annular grooves and cannot be dislodged, leading to a decrease in the rollers' grip, drainage, and other performance characteristics. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a support base, omnidirectional wheel and vehicle for omnidirectional wheels, so as to solve the problem that the accumulation of foreign objects in the annular groove leads to the decline of roller performance in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is: to provide a support base for an omnidirectional wheel, the support base is disposed on the side of the roller and rotatably connected to the roller, the support base includes a surrounding plate and an end plate, and the end plate is fixedly connected to one end of the surrounding plate;

[0007] A first rotating part is provided on the side of the end plate facing the enclosure, and a second rotating part is provided on the side of the end plate away from the enclosure.

[0008] The rotating shaft is rotatably arranged on the roller, one end of the rotating shaft is connected with the first rotating part, and the other end of the rotating shaft is connected with the second rotating part on the adjacent supporting base.

[0009] Further, the first boss is arranged on the side of the end plate facing the fence, and the first connecting hole is arranged on the first boss.

[0010] The second boss is arranged on the side of the end plate away from the fence, and the second connecting hole is arranged on the second boss.

[0011] One end of the rotating shaft is inserted into the first connecting hole in one of the fences, and the other end of the rotating shaft is inserted into the second connecting hole in the other adjacent fence.

[0012] Further, the central axes of the first connecting hole and the second connecting hole on the same end plate intersect.

[0013] Further, the first connecting hole on any end plate is coaxially arranged with the second connecting hole on the adjacent end plate.

[0014] Further, the supporting base has an inner surface on the side facing the roller, the roller is provided with a ring groove, the inner surface is protruded to form a protruding part in the direction of the roller, and the protruding part is at least partially inserted into the ring groove and can slide along the ring groove.

[0015] Further, the bottom surface of the ring groove is a first arc surface.

[0016] The end of the protruding part facing the first arc surface is provided with a second arc surface, the second arc surface is arranged in a spaced manner with the first arc surface, and the minimum distance from any point on the second arc surface to the first arc surface is equal.

[0017] Further, a plurality of ground contact surfaces are arranged on the roller, and the ground contact surfaces are arranged between adjacent two ring grooves.

[0018] A plurality of recessed parts are arranged on the supporting base, the protruding part is arranged between adjacent two recessed parts, the bottom surface of the recessed part is arranged in a spaced manner with the ground contact surface, and the minimum distance from any point on the bottom surface of the recessed part to the ground contact surface is equal.

[0019] Another technical scheme adopted by the present application is to provide an omnidirectional wheel, which comprises a hub and the above-mentioned supporting base, a plurality of supporting bases are uniformly arranged along the circumference of the hub, and one roller is rotatably connected to each supporting base, and the outer contours of the plurality of rollers are arranged on the same circumferential surface coaxial with the hub.

[0020] Still another technical scheme adopted by the present application is to provide a vehicle comprising a plurality of the above-mentioned omnidirectional wheels.

[0021] Compared with the prior art, the present application has at least the following beneficial effects:

[0022] 1. The rotation axis of each roller is connected to two adjacent support seats, so that the two support seats can support a roller simultaneously, and when a roller contacts the working surface and is subjected to a large force, the two support seats are subjected to force simultaneously, so that the single support seat is not damaged by excessive force.

[0023] 2. Each support seat has a first rotation part and a second rotation part, the first rotation part is connected to the lateral roller of the support seat, and the second rotation part is connected to the adjacent roller, and the adjacent roller is connected to the adjacent support seat, so that the multiple support seats are connected through the rollers, the integrity of all the rollers and support seats is stronger, and each roller and each support seat has an indirect or direct connection relationship; when one or more support seats are separated from the hub, the support seat will not directly fall from the hub due to the connection of the roller, but will be suspended between the adjacent two rollers, and can continue to work for a period of time. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 It is a structure schematic view of the omnidirectional wheel in the embodiment;

[0026] Figure 2 It is a structure schematic view of the hub and the plurality of support seats in the embodiment;

[0027] Figure 3 It is a structure schematic view of the omnidirectional wheel after removing part of the rollers in the embodiment;

[0028] Figure 4 It is a structure schematic view of the support seat and the roller from one perspective in the embodiment;

[0029] Figure 5 It is a structure schematic view of the support seat and the roller from another perspective in the embodiment;

[0030] Figure 6 It is a sectional view of the support seat and the roller in the embodiment;

[0031] Figure 7 It is a structure schematic view of the support seat in the embodiment;

[0032] Figure 8 It is a structure schematic view of the roller in the embodiment.

[0033] Explanation of reference signs: 100, support seat; 110, coaming; 111, protruding part; 112, recessed part; 120, end plate; 121, first rotating part; 122, second rotating part; 123, first connecting hole; 124, second connecting hole; 200, roller; 210, rotating shaft; 220, ring groove; 230, grounding surface; 300, wheel hub. DETAILED DESCRIPTION

[0034] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0035] Please refer to Figures 4-7 The present application discloses a support seat for omni-directional wheel. The support seat 100 is arranged on the lateral side of the roller 200 and is rotatably connected with the roller 200. The roller 200 is provided with a ring groove 220. The support seat 100 has an inner surface on the side facing the roller 200. The inner surface is protruded to form a protruding part 111 in the direction facing the roller 200. The protruding part 111 is at least partially inserted into the ring groove 220 and is slidable along the ring groove 220.

[0036] In the present embodiment, the support seat 100 is arranged to rotatably mount the roller 200 on the support seat 100, so as to realize the rotation of the roller 200 and further realize the lateral movement of the omni-directional wheel. The protruding part 111 is arranged on the side of the support seat 100 facing the roller 200, so that the protruding part 111 is partially or completely inserted into the ring groove 220 of the roller 200. When the roller 200 rotates relative to the support seat 100, the protruding part 111 slides in the ring groove 220, so as to sweep away the foreign matters accumulated in the ring groove 220, to maintain the proper depth of the ring groove 220 and ensure the performance of the gripping force and drainage of the roller 200.

[0037] Further, please refer to Figure 7 The support seat 100 is provided with a plurality of protruding parts 111 along the length direction thereof. The outer wall of the roller 200 is provided with a plurality of ring grooves 220 along the axial direction thereof. Each ring groove 220 has at least one protruding part 111 inserted therein.

[0038] Specifically, each ring groove 220 has at least one protruding part 111 inserted therein, so that when the roller 200 rotates, the protruding part 111 in each ring groove 220 simultaneously sweeps away the foreign matters in the ring groove 220.

[0039] Further, the support base 100 comprises an end plate 120 rotatably connected with the roller 200, and a surrounding plate 110 laterally arranged at the roller 200, wherein one side of the surrounding plate 110 is provided with a plurality of protrusions 111, and the length of the surrounding plate 110 is greater than or equal to the length of the outer wall of the roller 200.

[0040] Specifically, the end plate 120 is substantially perpendicular to the surrounding plate 110, the end plate 120 is rotatably connected with the rotating shaft 210 on the roller 200, and the surrounding plate 110 is arranged laterally at the roller 200, and the protrusions 111 on the surrounding plate 110 extend into the ring groove 220 on the roller 200 to clean the foreign matters in the ring groove 220.

[0041] Further, the two side edges of the support base 100 are symmetrical about the protrusions 111.

[0042] In the embodiment, only one protrusion 111 extends into one ring groove 220, and the protrusion 111 is arranged at the middle of the support base 100 (i.e. the two side edges of the support base 100 are symmetrical about the protrusion 111), so that when the roller 200 rotates forward, one side edge of the protrusion 111 pushes and cleans the foreign matters in the ring groove 220, and when the roller 200 rotates reversely, the other side edge of the protrusion 111 pushes and cleans the foreign matters in the ring groove 220. That is, only one protrusion 111 extends into one ring groove 220, and the protrusion 111 can clean the foreign matters in the ring groove 220 no matter the roller 200 rotates forward or reversely.

[0043] Further, two protrusions 111 extend into each ring groove 220, and the two protrusions 111 are arranged at the two sides of the support base 100, respectively.

[0044] Specifically, two protrusions 111 can also extend into one ring groove 220, so that when the roller 200 rotates forward, one protrusion 111 pushes and cleans the foreign matters in the ring groove 220, and when the roller 200 rotates reversely, the other protrusion 111 pushes and cleans the foreign matters in the ring groove 220. The two protrusions 111 are arranged at the two sides of the support base 100, respectively, so that no matter the roller 200 rotates forward or reversely, one protrusion 111 can push and clean the foreign matters in the ring groove 220, and the foreign matters in the ring groove 220 cannot enter the gap between the support base 100 and the roller 200, thereby avoiding the phenomenon that the roller 200 is jammed or even stuck due to the foreign matters entering the gap between the support base 100 and the roller 200.

[0045] Further, at least three protrusions 111 extend into each ring groove 220, and the at least three protrusions 111 are uniformly and spacedly arranged along the width direction of the support base 100.

[0046] Specifically, the embodiment can also be provided with three or more than three protruding parts 111 extending into the ring groove 220 at the same time, and the at least three protruding parts 111 are arranged uniformly and evenly, the protruding parts 111 on the outside of the support base 100 first clean the foreign matters in the ring groove 220, and then the protruding parts 111 on the inside of the support base 100 continue to clean the residual foreign matters, so that the foreign matters in the ring groove 220 can be cleaned for multiple times, and the foreign matters in the ring groove 220 can be cleaned more thoroughly.

[0047] Further, the minimum distance from the plurality of protruding parts 111 to the bottom surface of the ring groove 220 gradually decreases from the two sides to the middle of the support base 100.

[0048] Specifically, the gap between the plurality of protruding parts 111 and the ring groove 220 gradually decreases from the outside to the inside, that is, the gap between the protruding parts 111 closer to the outside and the ring groove 220 is larger, and the gap between the protruding parts 111 closer to the middle and the ring groove 220 is smaller, so that the protruding parts 111 on the outside can preliminarily clean the foreign matters in the ring groove 220, and the protruding parts 111 on the middle can thoroughly clean the foreign matters in the ring groove 220, thereby realizing the step-by-step cleaning of the foreign matters, so as to reduce the stress of a single protruding part 111 and avoid damage caused by excessive stress.

[0049] Further, one side of a single protruding part 111 towards the ring groove 220 can be provided in an inclined or stepped shape, so that the gap between the outside area of the protruding part 111 and the bottom surface of the ring groove 220 is larger than the gap between the inside area of the protruding part 111 and the bottom surface of the ring groove 220. In this way, the step-by-step cleaning of the foreign matters in the ring groove 220 can be realized by the single protruding part 111 extending into the ring groove 220.

[0050] Further, the protruding part 111 is a protruding column or a protruding strip provided on the support base 100.

[0051] When the protruding part 111 is provided in a column shape, one protruding column can extend into one ring groove 220, and the protruding column is located in the middle of the support base 100, and the two side edges of the support base 100 are symmetrical about the protruding column; two protruding columns can extend into one ring groove 220, and the two protruding columns are respectively located on the two sides of the support base 100; or three or more than three protruding columns can extend into one ring groove 220 at the same time, and the height of the protruding column located in the middle is higher than the height of the protruding column located on the outside.

[0052] When the protruding part 111 is provided in a strip shape, one protruding strip can extend into one ring groove 220, and the protruding strip is located in the middle of the support base 100, so that the two side edges of the support base 100 are symmetrical about the center of the protruding strip; or two protruding strips can extend into the same ring groove 220 at the same time, and the two protruding strips are respectively located on the two sides of the support base 100;

[0053] The three or more protrusions can be arranged at intervals, and the height of the protrusion in the middle is higher than the height of the protrusions on the outer sides.

[0054] Further, the protrusion 111 is a protrusion arranged on the support base 100, and the two ends of the protrusion are connected to the two side edges of the support base 100.

[0055] Specifically, the two ends of the protrusion are connected to the two side edges of the support base 100, that is, the length of the protrusion is equal to the width of the support base 100, so that the strength of the protrusion can be improved, and the phenomenon of the foreign matter entering the gap between the support base 100 and the roller 200 to cause the roller 200 to jam can be avoided.

[0056] Further, the bottom surface of the annular groove 220 is a first arc surface; one end of the protrusion 111 towards the first arc surface is provided with a second arc surface, the second arc surface is arranged at an interval from the first arc surface, and the minimum distance from any point on the second arc surface to the first arc surface is equal. The distance from any position on the first arc surface to the second arc surface is set to be the same, so that the gap at some positions is not too large, and the foreign matter is not accumulated at the gap, and the phenomenon of the roller 200 jamming is avoided.

[0057] Further, please refer to Figure 8 The roller 200 is provided with a plurality of grounding surfaces 230, and the grounding surfaces 230 are arranged between adjacent two annular grooves 220.

[0058] The support base 100 is provided with a plurality of recesses 112, the protrusion 111 is arranged between adjacent two recesses 112, and the bottom surface of the recess 112 is arranged at an interval from the grounding surface 230, and the minimum distance from any point on the bottom surface of the recess 112 to the grounding surface 230 is equal.

[0059] Specifically, the grounding surface 230 needs to be in contact with the ground or other working surface, and is easy to carry impurities such as gravel and soil. Therefore, one recess 112 is arranged between any two adjacent protrusions 111 in the embodiment, so that the recess 112 is arranged at an interval from the grounding surface 230, and when the roller 200 rotates, the recess 112 can strip the impurities carried on the grounding surface 230, so as to improve the friction between the grounding surface 230 and the working surface, and further improve the gripping force of the entire omnidirectional wheel.

[0060] The gap between the bottom surface of the recess 112 and the grounding surface 230 is equal everywhere, so that the impurities on the grounding surface 230 are not easy to accumulate at the position with a larger gap, and the phenomenon of the roller 200 jamming is avoided.

[0061] Further, the minimum distance between any point on the second arc surface and the first arc surface is equal to the minimum distance between any point on the bottom surface of the recess 112 and the ground surface 230.

[0062] Specifically, the two gaps are equal, and when the roller 200 rotates relative to the support seat 100, the protrusion 111 sweeps the foreign matter in the ring groove 220, and at the same time, the recess 112 peels off the impurities on the ground surface 230.

[0063] Further, please refer to Figures 1-3 Also disclosed is an omnidirectional wheel, comprising a hub 300 and a plurality of support seats 100, the plurality of support seats 100 are uniformly arranged along the circumference of the hub 300, and one roller 200 is rotatably connected to each support seat 100, and the outer contours of the plurality of rollers 200 are all arranged on the same circumferential surface coaxial with the hub 300.

[0064] Specifically, a plurality of support seats 100 are arranged on the outer circumference of the hub 300, and one roller 200 is mounted on each support seat 100, so that the outer edges of all the rollers 200 are on a circumferential surface coaxial with the hub 300.

[0065] When the hub 300 rotates, it can drive all the rollers 200 to rotate together to enable the omnidirectional wheel to move straight in the direction of travel. When the roller 200 rotates relative to the support seat 100, it can drive the omnidirectional wheel to move laterally.

[0066] Further, please refer to Figure 3 、 Figure 7 and Figure 8 The support seat 100 comprises a surrounding plate 110 and an end plate 120, and the end plate 120 is fixedly connected to one end of the surrounding plate 110; the protrusion 111 is arranged on the side of the surrounding plate 110 facing the roller 200, and the side of the surrounding plate 110 away from the roller 200 is provided with a connecting portion for connecting with the hub 300;

[0067] The end plate 120 is provided with a first rotating portion 121 on the side facing the surrounding plate 110, and a second rotating portion 122 on the side away from the surrounding plate 110;

[0068] The roller 200 is rotatably provided with a rotating shaft 210, one end of the rotating shaft 210 is connected with the first rotating portion 121, and the other end of the rotating shaft 210 is connected with the second rotating portion 122 on the adjacent support seat 100.

[0069] Specifically, one end of the rotating shaft 210 is connected with the first rotating part 121 of the support base 100 on the lateral side of the roller 200, and the other end of the rotating shaft 210 is connected with the second rotating part 122 of the adjacent support base 100. That is, the rotating shaft 210 on each roller 200 is connected with two adjacent support bases 100 at the same time, and the two support bases 100 can support one roller 200 at the same time. When a roller 200 contacts the working surface and is subjected to a relatively large force, the two support bases 100 are subjected to the force at the same time, so that the single support base 100 is not damaged due to the excessive force.

[0070] Meanwhile, each support base 100 has the first rotating part 121 connected with the roller 200 on the lateral side of the support base 100 and the second rotating part 122 connected with the adjacent roller 200, and the adjacent roller 200 is connected with the adjacent support base 100. In this way, each support base 100 is connected with the adjacent support base 100 through the roller 200, the integrity of all the rollers 200 and the support bases 100 is stronger, and each roller 200 has an indirect or direct connection relationship with each support base 100. When one or more support bases 100 are separated from the hub 300, the support base 100 will not directly fall from the hub 300 due to the connection of the roller 200, but will be suspended between the adjacent two rollers 200, and can continue to work for a period of time.

[0071] Further, please refer to Figure 7 The side of the end plate 120 facing the fence 110 is provided with a first boss, and the first connecting hole 123 is formed in the first boss; the side of the end plate 120 away from the fence 110 is provided with a second boss, and the second connecting hole 124 is formed in the second boss.

[0072] One end of the rotating shaft 210 extends into the first connecting hole 123 in one of the fences 110, and the other end of the rotating shaft 210 extends into the second connecting hole 124 in the other adjacent fence 110.

[0073] Specifically, the first connecting hole 123 is formed in the first boss to form the first rotating part 121, and the second connecting hole 124 is formed in the second boss to form the second rotating part 122, so that one end of the rotating shaft 210 extends into one of the first connecting holes 123, and the other end extends into the second connecting hole 124 in the adjacent support base 100, thereby realizing the rotatable connection between the roller 200 and the two adjacent support bases 100.

[0074] Further, the central axes of the first connecting hole 123 and the second connecting hole 124 on the same end plate 120 intersect; the first connecting hole 123 on any end plate 120 is coaxially arranged with the second connecting hole 124 on the adjacent end plate 120.

[0075] Further, a vehicle comprising a plurality of omni-directional wheels is also disclosed.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A support base for an omnidirectional wheel, the support base being disposed laterally to the wheel and rotatably connected to the wheel, characterized in that, The support base includes a surrounding plate and an end plate, and the end plate is fixedly connected to one end of the surrounding plate; The end plate is provided with a first rotating part on the side facing the enclosure, and the end plate is provided with a second rotating part on the side away from the enclosure. The roller is rotatably provided with a rotating shaft, one end of which is connected to the first rotating part, and the other end of which is connected to the second rotating part on the adjacent support.

2. The support base for an omnidirectional wheel according to claim 1, characterized in that, The end plate is provided with a first protrusion on the side facing the enclosure, and a first connecting hole is provided on the first protrusion; The end plate is provided with a second protrusion on the side opposite to the surrounding plate, and a second connecting hole is provided on the second protrusion; One end of the rotating shaft extends into a first connecting hole in one of the enclosures, and the other end of the rotating shaft extends into a second connecting hole in another adjacent enclosure.

3. The support base for an omnidirectional wheel according to claim 2, characterized in that, The central axes of the first connecting hole and the second connecting hole on the same end plate intersect.

4. The support base for an omnidirectional wheel according to claim 2, characterized in that, The first connecting hole on any of the end plates is coaxially arranged with the second connecting hole on the adjacent end plate.

5. The support base for an omnidirectional wheel according to claim 1, characterized in that, The support base has an inner surface facing the roller, the roller is provided with an annular groove, the inner surface protrudes in the direction of the roller to form a protrusion, the protrusion at least partially extends into the annular groove and can slide along the annular groove.

6. The support base for an omnidirectional wheel according to claim 5, characterized in that, The bottom surface of the annular groove is a first arc surface; The protrusion has a second arc surface at one end facing the first arc surface. The second arc surface is spaced apart from the first arc surface, and the minimum distance from any point on the second arc surface to the first arc surface is equal.

7. The support base for an omnidirectional wheel according to claim 5, characterized in that, The roller is provided with multiple contact surfaces, which are disposed between two adjacent annular grooves; The support base has multiple recesses, and the protrusions are located between two adjacent recesses. The bottom surface of the recesses is spaced apart from the ground surface, and the minimum distance from any point on the bottom surface of the recesses to the ground surface is equal.

8. An omnidirectional wheel, comprising a hub, characterized in that, It also includes a plurality of support seats as described in any one of claims 1-7, the plurality of support seats being evenly arranged along the circumference of the hub, and each of the support seats being rotatably connected to a roller, and the outer contours of the plurality of rollers being arranged on the same circumferential surface coaxial with the hub.

9. The omnidirectional wheel according to claim 8, characterized in that, The side of the enclosure away from the roller is provided with a connecting part for connecting to the wheel hub.

10. A vehicle, characterized in that, It includes multiple omnidirectional wheels as described in claim 8 or 9.

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