WO2020015595A1

WO2020015595A1 - Wheel and locomotion apparatus having same

Info

Publication number: WO2020015595A1
Application number: PCT/CN2019/095890
Authority: WO
Inventors: 苏冀
Original assignee: 苏冀
Priority date: 2018-07-17
Filing date: 2019-07-12
Publication date: 2020-01-23

Abstract

Disclosed is a wheel having a hub adapted to a rotating shaft of a locomotion apparatus and a plurality of elastic supporting members circumferentially arranged on the outer circumferential surface of the hub. Bodies of the elastic supporting members extend outward to form end portion outer arc sections. The outer arc sections of the plurality of elastic supporting members are circumferentially and sequentially arranged at intervals, and have concentric and isodiametric protruding arc surfaces. In addition, the elastic supporting members have force-receiving deformation areas and force-receiving displacement areas which are configured that: the force-receiving deformation areas are located in the middle sections of the bodies; a deformation stress direction generated under an external force during a moving process tends to be consistent with the tangential direction of the rotation of the hub, thereby forming an action force for pushing the hub to rotate when deformation stress is released; the outer arc sections are the force-receiving displacement areas capable of generating displacement along with the deformation. The present solution changes a conventional rigid structure into a rigid and soft structure, and removes a tire, such that good locomotion performance can be obtained and the influence of a severe usage environment on the service life of a wheel can be effectively avoided. The present invention also provides a locomotion apparatus having the wheel.

Description

Wheel and walking equipment with the wheel

Technical field

The invention relates to the technical field of mechanical wheels, in particular to a wheel and walking equipment having the wheel.

Background technique

It is well known that traditional wheels pay attention to the continuity of rolling, which obtains rolling friction through the rigid rims closed in an annular shape. Most of the existing wheels consist of rims and hubs, spokes and tyres mounted on the outer periphery of the rims. Among them, the hubs form a rigid disc-shaped structure through the spokes and rims, and absorb shock and vibration loads during the bearing process through the tyres. .

Existing tires for existing automobiles or motor vehicles mainly include two structural forms, one is a pneumatic rubber tire, and the other is a solid rubber or silicone rubber tire. Due to the limitation of its material, when the temperature rises significantly during driving, it will directly affect the safety and life of the use; under relatively severe conditions, it is easy to leak air, puncture or damage, resulting in inability to drive and poor environmental adaptability.

In view of this, it is urgent to find another way to optimize the design of the wheel structure in order to effectively overcome the above-mentioned shortcomings of rubber tires.

Summary of the invention

In order to solve the above technical problems, the present invention provides a structure-optimized wheel, which converts a traditional rigid structure into a rigid-flexible structure, and eliminates the tire. On the basis of obtaining good running performance, it can effectively avoid the use of wheels in harsh environments The impact of life.

The wheel provided by the present invention comprises a hub and a plurality of elastic support members, the hub is adapted to fit with the rotating shaft of the traveling equipment, a plurality of elastic support members are evenly distributed on the outer peripheral surface of the hub, and the body of the elastic support member Extending outwardly to form an end outer arc segment, a plurality of the outer arc segments of the elastic support member are spaced in turn in the circumferential direction and have concentric and equal diameter convex convex solitary surfaces; and the elastic support member has a receiving The force-deformation region and the force-displacement region are configured such that the force-deformation region is located in the middle part of the body, and the direction of the deformation stress generated by the external force during the movement tends to be consistent with the direction of the tangent of the rotation of the hub, so that the deformation stress When released, a force for pushing the hub to rotate is formed; the outer arc segment is the force-displacement region and can be displaced with the deformation.

Preferably, the elastic support member as a whole is arranged to be bent toward a first direction, and the first direction is opposite to a rotation direction of the wheel.

Preferably, the outer arc segment of each of the elastic supporting members extends to a radially outer side of a deformation region of the elastic supporting member adjacent to the elastic supporting member.

Preferably, a position of the outer arc segment of the elastic support member connected with the main body of the elastic support member has a convex portion protruding circumferentially.

Preferably, the hub includes: an inner ring portion adapted to fit with a rotating shaft of the traveling equipment; an outer ring portion whose outer peripheral surface is connected to a plurality of the elastic support members; and a plurality of inner elastic support portions which are uniformly distributed in the circumferential direction. Between the inner ring portion and the outer ring portion; and the inner elastic support portion has a force deformation region, the stiffness of the force deformation region of the inner elastic support portion is greater than the force deformation region of the elastic support Stiffness.

Preferably, the inner ring portion and a plurality of the inner elastic support portions are integrated into one body and can be detachably connected to the outer ring portion; the wheel further includes an optional adapter, and the optional adaptation The piece can be detachably connected to the outer ring portion, and has an interface adapted to a rotating part of another walking equipment.

Preferably, the force-deformation region of the elastic support member is formed by the body's revolving coil or by-pass bending, and the force-deformation region of the inner elastic support portion is formed by the body's revolving coil or by-pass bend.

Preferably, a slot is formed on the convex convex solitary surface of the outer arc segment, and the slot can be inserted and fixed: a non-slip block with a non-slip structure on the outer surface; Switching between two working positions, and configured such that: the anti-sag plate located in the first working position may be built in the slot, and the anti-sag plate located in the second working position may be externally placed in the slot, And the plate body protrudes from both sides of the outer arc segment in the axial direction.

Preferably, the wheel further includes a rubber coating layer, and the rubber coating layer covers a plurality of the elastic support members, and the outer contour is in the shape of a continuous disc as a whole.

The present invention also provides walking equipment having the aforementioned wheels.

Compared with the prior art, the invention changes the traditional wheel by wheel

The disc-shaped structure formed with the rim converts it from a relatively rigid structure into a rigid-flexible flexible structure, and thereby provides a wheel with no tires. In this solution, a plurality of elastic support members are evenly distributed on the outer peripheral surface of the hub, the body of the elastic support member is extended outward to form an end outer arc segment, and the outer arc segments of each elastic support member are arranged at intervals in the circumferential direction, and Concentric and equal-diameter convex convex solitary surfaces, that is, the parts in contact with the road surface during the movement; at the same time, a force deformation region is formed in the middle section of the elastic support body, and the deformation that can be caused by the external force , The direction of the deformation stress tends to be consistent with the tangent direction of the rotation of the hub, so that when the deformation energy is released, an auxiliary force that promotes the rotation of the hub is formed; in this process, the outer arc segment is a region of force displacement, which can be changed according to the Deformation produces displacement, which is adducted or released under pressure. The application of this solution has the following beneficial technical effects:

First of all, the arrangement of the elastic support members uniformly distributed in the circumferential direction in this solution, on the one hand, through the elastic strain of the geometry of the structure itself, that is, the shock and vibration energy generated during the rolling motion of the wheel can be directly absorbed to obtain better avoidance. At the same time, its deformation stress direction is consistent with the tangent direction of the hub rotation. Most of the deformation stress rebound vector is consistent with the tangent direction of the hub. During the release of structural elastic strain, this component energy can provide for the rotation of the wheel Assistance, that is, the energy converted into rotational torque for useful work is directly proportional to the magnitude of the load pulse amplitude pointing to the tangential direction that propels the wheel housing to rotate, so that the redistribution of the force required to better meet the obstacle can be improved to pass through the obstacle Ability. In addition, a larger amount of elastic strain can form more bearing contact areas, improve the ability to prevent sags, and improve the passability in soft road conditions. In this way, the wheels provided by this solution have the ability to flexibly and flexibly, and effectively take into account the vibration isolation effect of walking equipment and the improvement of passing performance.

Secondly, the outer arc segment of each elastic support member extends radially outward of the deformation region of the adjacent elastic support member in its bending direction; thus, the orderly distributed outer arc segments are adjacent to the adjacent elastic support member. The staggered arrangement of the wheels makes the pulse rolling process more reliable and continuous rotation, which further improves its motion stability.

Third, in a preferred solution of the present invention, the outer arc segment of each elastic support member has a convex portion protruding circumferentially at a position connected to the main body, and two adjacent outer arc segments are spaced apart to form a non-continuous opening. Area, which can be clamped against the obstacle after being stretched under the squeeze of the obstacle, further improving the ability to pass through the obstacle.

Fourth, in another preferred solution of the present invention, the hub has a plurality of inner elastic support portions evenly distributed in the circumferential direction, and each inner elastic support portion has a force deformation region, and the rigidity of the force deformation region of the inner elastic support portion. The stiffness is greater than the force-deformed area of the elastic support. As a result, two-stage shock load absorption is formed for shock and vibration loads during the bearing process, and particularly it can absorb larger shock loads formed during emergency braking or violent rolling of the vehicle.

Fifth, in yet another preferred solution of the present invention, the inner ring portion and the inner elastic support portion of the hub are integrated into one body, and the outer ring portion is detachably connected; and an optional adapter is used for connection replacement. The interface on the adapter is connected with the rotating part of another walking equipment, and can be applied to different usage scenarios, and has good adaptability.

Sixth, it is preferable to provide a slot on the convex convex solitary surface of the outer arc segment, and a special road condition option can be inserted and fixed in the slot, such as a non-slip block or a sinker plate. In actual use, under snow and ice conditions, non-slip blocks with non-slip surface structure can be inserted on the outer arc segment, thereby improving its anti-skid performance by increasing the coefficient of friction; under soft road conditions, it can be extended to switch the working position. The anti-sagging plate is inserted on the outer arc segment, so that the grounding area can be increased by the extension of the outer plate of the plate, thereby further improving the passability in soft road conditions.

Finally, it is preferred that the wheel further comprises a rubber covering layer covering the outer peripheral elastic support member, and the outer contour as a whole is in the shape of a continuous disc, that is, the gap (opening) is connected by a flexible material, and the appearance of the wheel is in the shape of a disc of a traditional wheel. , The outer ring is continuous during the rolling process, which further improves its smooth operation.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic perspective view of a wheel according to the first embodiment;

2 is a front view of a wheel according to the first embodiment;

FIG. 3 shows a schematic diagram of the use state of the wheel;

Figure 4 shows another way of deforming a region of the elastic support under force;

FIG. 5 is a schematic diagram of an assembly relationship of another use state of the wheel according to the second embodiment; FIG.

6 is a schematic diagram of a wheel with the inner ring of the hub and the inner elastic support part removed according to the second embodiment;

7 is a schematic diagram of an optional adapter according to the second embodiment;

8 is a schematic diagram of a wheel according to the third embodiment;

9 is a schematic diagram of a wheel according to the fourth embodiment;

Figure 10 is a sectional view taken along the line F-F of Figure 9;

FIG. 11 is a schematic diagram of the state of use of another type of function module anti-sagging plate.

In the picture:

Hub 1, inner ring portion 11, inner elastic support portion 12, outer ring portion 13, optional adapter 14, interface 141, weight reduction hole 142, elastic support 2, outer arc segment 21, outer convex portion 22, The slot 23, the non-slip block 24, the non-slip nail 25, the anti-sag plate 26, the rubber coating layer 3, and the through hole 31.

detailed description

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment one:

Please refer to FIGS. 1 and 2, wherein FIG. 1 is a schematic perspective view of the wheel according to the embodiment, and FIG. 2 is a front view of the wheel.

The wheel mainly includes a hub 1 and an elastic support 2 adapted to fit a rotating shaft (not shown in the figure) of the traveling equipment. A plurality of elastic supports 2 are evenly distributed on the outer peripheral surface of the hub 1 in the circumferential direction. Here, the plurality of elastic support members 2 have the functions of spokes and rims of a conventional wheel, and the tire is eliminated based on its own rigidity and flexibility.

As shown in the figure, the body of the elastic support member 2 extends outward to form an end outer arc segment 21, and the outer arc segments 21 of the plurality of elastic support members 1 are spaced in turn in the circumferential direction, and two adjacent outer arc segments are formed. Incoherent open area A. And each of the outer arc segments 21 has a concentric and equal-diameter convex convex solitary surface, and forms a grounding part during the rolling process with the wheel. Specifically, each elastic support has a force-deformation area B and a force-deformation area C, and is configured such that the force-deformation area C is located in the middle of the body, and the direction of the deformation stress generated by the external force during the movement and the rotation of the hub The tangent directions of the two tend to be the same, as shown by the arrow D in FIG. 3 to form an auxiliary force for pushing the rotation of the hub 1; the outer arc segment 21 is a force displacement region C, which can be generated with the deformation of the force deformation region C. Displacement, inward displacement when deformed under pressure, outward displacement when deformation is released. FIG. 3 shows a schematic diagram of the use state of the wheel according to this embodiment, and the dashed line in the figure shows the posture of the elastic support member 1 at the corresponding position. The elastic strain amplitude of the wheel can be greater than the elastic strain amplitude of traditional tires, improving the ability to pass low friction coefficient roads (ice and snow); at the same time, it can improve the ability to prevent subsidence and further improve the passability in soft road conditions.

Here, the “force deformation region” refers to a region where the load undergoes elastic deformation during the rolling process, and the “force displacement region” refers to a region where the position changes during the rolling process as the deformation region deforms. In theory, the “force deformation region” No deformation occurs in the “force deformation area”, and the slight deformation generated in this area based on the characteristics of the material is negligible relative to the deformation amount of the “force deformation area”. It should be noted that the expressions of “force deformation area” and “force deformation area” are only used to clearly show the working mechanism of this solution. It should be understood that the expression of the above two areas does not constitute an absolute division of the corresponding work area. limit.

Specifically, the force-deformation region B of the elastic support 1 is formed by the body's rotating coil, similar to a through-spring structure; as shown in FIG. 4, the force-deformation can be formed by the body's circuitous bending. Region B, as long as it meets the functional needs of deformed energy storage and can provide rotational driving force during the energy release process, are all within the scope claimed in this application.

In order to further optimize its passing performance, the elastic support member 2 as a whole is arranged to be bent toward a first direction, which is opposite to the rotation direction of the wheel. As shown in FIG. 3, the tendency is to set the elastic support 2 to make the grounding during the movement more smooth. Further, the outer arc segment 21 of each elastic support member 2 extends to the radially outer side of the deformation region of the adjacent elastic support member 2 in its bending direction, that is, an outer arc segment 21 of one elastic support member 2 is located therewith. The radially outer side of the deformation area B of another adjacent elastic support member 2, the orderly distributed end outer arc segments, and the staggered arrangement of the adjacent elastic support members make the wheel rolling process form a more reliable pulse-type continuous Rotation further improves its motion stability.

As shown in the figure, the outer arc segment 21 of the elastic support 2 has a convex portion 22 protruding in the circumferential direction at a position connected with the main body. Two adjacent outer arc segments 21 are arranged at intervals to form a non-continuous opening area A, which can be clamped against the obstacle after being stretched under the squeeze of the obstacle, or the convex portion 22 can also be overlapped as shown in FIG. 3 Stepped road obstacles, further improving the ability to pass obstacles.

In order to further absorb the large impact load caused by the emergency braking or the violent rolling process of the vehicle, the wheel hub 1 may include an inner ring portion 11, an outer ring portion 13, and an inner ring portion 11 adapted to fit the rotating shaft of the traveling equipment. A plurality of inner elastic support portions 12 between the outer ring portion 13 and the outer ring portion 13.

As shown in the figure, the outer peripheral surface of the outer ring portion 13 is connected to a plurality of elastic support members 1, and the plurality of inner elastic support portions 12 are evenly distributed between the inner ring portion 11 and the outer ring portion 13 in a circumferential direction; In the force-deformation region E, the stiffness of the force-deformation region E of the inner elastic support portion 12 is greater than the stiffness of the force-deformation region B of the elastic support 1. As a result, two-stage shock load absorption is formed for shock and vibration loads in the bearing process, that is, shock vibration is first absorbed by the force-deformation region B of the elastic support 1, and when the deformation absorption energy in this region approaches saturation In the state, the force-deformation region E of the inner elastic support portion 12 enables energy absorption, in particular, it can absorb large impact loads formed during the emergency braking or the violent rolling of the vehicle.

Similarly, the force-deformation region E of the inner elastic supporting portion 12 may be formed by the main body rotating and coiling, or by the main body being bent in a roundabout manner.

In addition, the wheel components provided by this solution can be made of aluminum alloy or high-strength plastic.

Embodiment two:

The difference between this solution and the first embodiment lies in the change in the structure of the hub and the addition of the optional adapter 14 so that it can be applied to the temporary substitute function of another traveling equipment. Please refer to FIG. 5, which illustrates another schematic diagram of the assembly relationship of the wheel in another embodiment. In order to clearly show the difference and connection between this embodiment and the first embodiment, the same functional components in the figure are indicated by the same reference numerals. .

Specifically, the inner ring portion 11 and the plurality of inner elastic support portions 12 are integrated into one body, and can be detachably connected to the outer ring portion 13, such as screw connection or snap connection; that is, the inner ring portion 11 and the inner elastic support The portion 12 can be detached from the outer ring portion 13, wherein the optional adapter 14 can also be detachably connected to the outer ring portion 13, and also uses a threaded connection or a snap connection, and the optional adapter 14 has an adapter. An interface 141 for a rotating part of another traveling equipment, such as a wheel hub of a car. As shown in FIG. 5, after the optional adapter 14 is replaced and assembled with the outer ring portion 13, the wheel assembled with the optional adapter 14 can be applied to a faulty automobile wheel, and can have a short-term temporary substitute function.

Of course, in order to control the weight of the product to the maximum, the optional adapter 14 may be provided with a plurality of weight reduction holes 142 evenly distributed in the circumferential direction.

Embodiment three:

The difference between this solution and the first or second embodiment is that the wheel is additionally provided with a rubber coating layer 3, which covers a plurality of elastic support members 2, and the outer contour is in the form of a continuous disc as a whole. Overall coating. Please refer to FIG. 8, which is a schematic diagram of the wheel described in the solution. In order to clearly show the differences and connections between this implementation and the first and second embodiments, the same functional components in the figure are indicated by the same reference numerals.

That is to say, the gap (opening) is connected by a flexible material, and the appearance of the wheel is the disk shape of a traditional wheel, that is, the rigid and flexible characteristics of the disk structure are composed of an elastic skeleton and a highly elastic covering material. Coherent circles, further improving its smooth operation. Here, the rubber coating layer 3 may be selected from materials such as foamed silicone rubber, and may be supplemented with different colors or patterns as required to improve the user experience.

Similarly, for aesthetics and weight control, the rubber coating layer 3 between the elastic support members 2 may be provided with a plurality of through holes 31 uniformly distributed in the circumferential direction.

Embodiment 4:

The difference between this solution and the first or second embodiment lies in the structural change of the outer arc segment 21 of the elastic support 2 and the addition of an optional module for road conditions. Please refer to FIG. 9, which is a schematic diagram of a wheel described in the solution. In order to clearly show the differences and connections between this implementation and the first and second embodiments, the same functional components in the figure are indicated by the same reference numerals.

As shown in the figure, a slot 23 is defined on the convex surface of the outer arc segment 21, and a non-slip block 24 can be inserted and fixed in the slot 23. The outer surface of the non-slip block 24 has a non-slip structure. Please also refer to FIG. 10, which is a sectional view taken along the line F-F in FIG. 9.

As shown in FIG. 10, one end of the non-slip block 2 can be inserted into the slot 23 of the outer arc section 21 and form a limit-fixing pair, and the non-slip structure on the outer surface of the other end can be the non-slip The nail 25 may also be a net-shaped non-slip convex rib provided on the outer surface, as long as it can increase the rolling friction coefficient during exercise.

In addition, other functional modules that can be inserted into the slot 23, such as the anti-sag plate 26, can also be used as anti-skid and anti-sag auxiliary wheels for walking equipment under special road conditions.

As shown in FIG. 11, this figure shows the use state of the function module anti-sag plate. The anti-collision plate 26 can be switched between two working positions, and is configured as follows: the anti-collision plate 26 in the first working position can be built in the slot 23, and the anti-collision plate 26 in the second working position can be placed outside Slot (not shown in the figure, can be rolled into the slot). As shown in the figure, the plate body of the anti-collision plate 26 extends axially on both sides of the outer arc segment 21 in the axial direction. In soft road conditions, the anti-collision plate 26 that can be extended to switch the working position can be inserted on the outer arc segment, so that the ground can be increased by the outer extension of the board, and the passability in soft road conditions can be further improved.

In addition to the wheels provided in the foregoing embodiments, this embodiment also provides walking equipment using the foregoing wheels. The walking equipment may be a bicycle or a motor vehicle. It should be understood that other functional parts of the walking equipment are not the core invention of this application, and those skilled in the art can implement them based on the existing technology, so they are not described in detail herein.

It should be noted that the elastic support members of the wheels and the internal elastic support sections of the hub are six exemplary illustrations. Without loss of generality, the elastic support members and the internal elastic support sections can be set according to the specific requirements of different equipment. It is plural, and is not limited to the number shown in the figure.

The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches should also be viewed as It is the protection scope of the present invention.

Claims

A wheel, comprising:

Hubs for fitting to the shaft of travel gear; and

A plurality of elastic support members are evenly distributed on the outer peripheral surface of the hub in a circumferential direction. The body of the elastic support member extends outward to form an end outer arc segment. Set, and have concentric and equal diameter convex convex solitary surfaces; and

The elastic support has a force-deformation region and a force-deformation region, and is configured such that the force-deformation region is located in the middle of the body, and the direction of the deformation stress generated by the external force during the movement is consistent with the tangential direction of the rotation of the hub. To form a force that pushes the hub to rotate when the deformation stress is released; the outer arc segment is the force displacement region that can be displaced with the deformation.
The wheel according to claim 1, wherein the elastic support member is disposed as a whole bent toward a first direction, and the first direction is opposite to a rotation direction of the wheel.
The wheel according to claim 2, wherein the outer arc segment of each of the elastic support members extends to a radially outer side of a deformation region of the elastic support member adjacent to the elastic support member.
The wheel according to any one of claims 1 to 3, wherein the outer arc segment of the elastic support member has a convex portion protruding in a circumferential direction at a position connected with the main body.
The wheel according to claim 4, wherein the hub comprises:

Inner ring for adapting to the shaft of walking equipment;

An outer ring portion, the outer peripheral surface of which is connected to a plurality of said elastic supports; and

A plurality of inner elastic support portions, which are evenly distributed between the inner ring portion and the outer ring portion in a circumferential direction; and

The inner elastic support portion has a force deformation region, and the stiffness of the force deformation region of the inner elastic support portion is greater than the stiffness of the force deformation region of the elastic support.
The wheel according to claim 5, wherein the inner ring portion and a plurality of the inner elastic support portions are integrated into one body and can be detachably connected to the outer ring portion; the wheel further comprises an optional An adapter, the optional adapter can be detachably connected to the outer ring portion, and has an interface adapted to a rotating component of another walking equipment.
The wheel according to claim 5, wherein the force-deformation region of the elastic support member is formed by the body's revolving coil or a roundabout bend, and the force-deformation region of the inner elastic support portion is by the body's revolving coil. Or a roundabout bend.
The wheel according to claim 1, wherein a slot is formed on the convex convex solitary surface of the outer arc segment, and the slot can be fixedly installed in the slot:

Anti-slider, whose outer surface has a non-slip structure; or

An anti-collision plate, which can be switched between two working positions, is configured: the anti-collision plate located in the first working position may be built in the slot, and the anti-collision plate located in the second working position may be It is externally placed in the slot, and its plate body protrudes from both sides of the outer arc segment in the axial direction.
The wheel according to claim 1, wherein the wheel further comprises a rubber coating layer, the rubber coating layer covering a plurality of the elastic support members, and the outer contour is in the shape of a continuous disc as a whole.
A traveling equipment having a wheel according to any one of claims 1 to 9.