CN116766824B - A non-pneumatic wheel with variable wheel diameter and tire width - Google Patents
A non-pneumatic wheel with variable wheel diameter and tire widthInfo
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- CN116766824B CN116766824B CN202310652281.8A CN202310652281A CN116766824B CN 116766824 B CN116766824 B CN 116766824B CN 202310652281 A CN202310652281 A CN 202310652281A CN 116766824 B CN116766824 B CN 116766824B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
本发明公开了一种轮径和胎宽可变的非充气车轮，包括胎面、轮毂、伸缩模块、驱动模块和锁定模块；胎面上周向均匀设有M个伸缩通孔；轮毂同轴设置在胎面内，其上均匀设有M条指向其圆心的滑槽；伸缩模块包含M个和条形通槽一一对应设置的伸缩单元，伸缩单元包含滑块、驱动滚轮、限位滚轮、支撑体、复位弹簧、第一至第四连接件；驱动模块包含伺服电机、中心轴承、中心轴、驱动盘、M个驱动轮辐；锁定模块包含M个锁定单元，一一对应设置在胎面在M个伸缩单元之间的内壁上。本发明在改变轮径的同时减小胎宽，并且能够通过驱动模块和锁止模块的配合进行锁止，行驶稳定性好，功能性强，可配合多种车辆使用。
The present invention discloses a non-pneumatic wheel with variable wheel diameter and tire width, comprising a tread, a hub, a telescopic module, a drive module, and a locking module. The tread is provided with M telescopic through-holes uniformly distributed circumferentially. The hub is coaxially disposed within the tread and is provided with M slots uniformly distributed toward its center. The telescopic module includes M telescopic units corresponding to the slots, each of which includes a slider, a drive roller, a limit roller, a support body, a return spring, and first to fourth connecting members. The drive module includes a servo motor, a center bearing, a center shaft, a drive disc, and M drive spokes. The locking module includes M locking units, each corresponding to the inner wall of the tread between the M telescopic units. The present invention reduces tire width while changing wheel diameter, and can be locked through the cooperation of the drive module and the locking module. It has excellent driving stability, strong functionality, and can be used with a variety of vehicles.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a non-inflatable wheel with variable wheel diameter and tire width.
Background
Tires are the only components of the road to vehicle interaction that are capable of responding to the driver's dynamic instructions and supporting the vehicle's own weight, thereby mitigating jolts and various complex excitations of the vehicle on rough roads to improve the driving comfort of the vehicle. At present, pneumatic tires are still the mainstream of the tire industry, but the defects of the pneumatic tires are obvious, such as poor puncture resistance, incapability of normal running after air leakage, tire burst risk and the like. Accordingly, researchers have gradually tried new research directions and non-pneumatic tires have been developed. The non-pneumatic tire has no complex structures such as an inner liner, a belt layer and the like of the pneumatic tire, reduces the efficiency of air leakage and tire burst while simplifying the structure, and greatly improves the running safety of the vehicle. However, non-pneumatic wheels, while having many advantages, are limited when faced with a variety of complex ground environments such as potholes, hills, mud accumulation and water accumulation.
On the basis of non-inflation, the wheels with the changeable wheel diameters and tread widths are suitable for different road surfaces, when the vehicle runs on uneven road surfaces, the wheels with the changeable wheel diameters are in an open state, the distance between the chassis of the vehicle and the ground is increased, the contact area between the tires and the ground is reduced, the passing performance and smoothness of the vehicle are improved, and when the vehicle runs on flat good road surfaces, the wheels are in a closed state, and the running speed of the vehicle is improved.
At present, research on changing the wheel diameter and the tire width of the wheel is relatively limited, and a variable-wheel-diameter deformed wheel is disclosed in China patent document No. CN110356167B, and the wheel diameter of the deformed wheel can be changed according to different vehicle driving scenes. However, the axial width of the wheel cannot be changed by the technical scheme, the smoothness of the automobile can be deteriorated after the diameter of the wheel is enlarged, and the components are complex and are not easy to install and disassemble. In the related art of the present variable radius wheel, there is little research on combining the variable radius of the tire with a mechanical locking device, and most of the control is performed by an electric device such as an electromagnetic hydraulic valve, which causes consumption of electric power resources.
Disclosure of Invention
The invention aims to solve the technical problem of providing a non-inflatable wheel with variable wheel diameter and tire width aiming at the defects related to the background technology.
The invention adopts the following technical scheme for solving the technical problems:
A non-inflatable wheel with variable wheel diameter and tire width comprises a tread, a hub, a telescopic module, a driving module and a locking module;
The hub is disc-shaped, a through hole for the input shaft to pass through is arranged in the center of the hub, M strip-shaped sliding grooves pointing to the center of the hub are uniformly formed in the circumferential direction of the hub, and M is a natural number greater than or equal to 3;
The tread is a hollow cylinder with two open ends, and M telescopic through holes are uniformly formed in the circumferential direction of the hollow cylinder;
the wheel hubs are coaxially arranged in the tread, and the outer edges of the wheel hubs are fixedly connected with the tread, so that the centers of the M strip-shaped through grooves and the M telescopic through holes are in one-to-one correspondence;
The telescopic module comprises M telescopic units;
the telescopic units comprise sliding blocks, roller brackets, first driving rollers, second driving rollers, first limiting rollers, second limiting rollers, supporting bodies, supporting brackets, reset springs and first to fourth connecting pieces, and M telescopic units and M strip-shaped through grooves are arranged in a one-to-one correspondence manner;
the sliding blocks are arranged in the strip-shaped through grooves corresponding to the telescopic units and can freely slide along the strip-shaped through grooves;
the reset spring is arranged in the strip-shaped through groove, one end of the reset spring is fixedly connected with the hub at the inner side of the strip-shaped through groove, and the other end of the reset spring is fixedly connected with the sliding block and is in a stretching state;
the first driving roller, the first limiting roller, the second limiting roller and the second driving roller are coplanar, the rotating shafts are parallel to the axis of the hub, both ends of the rotating shafts are fixed on the roller support, and the rotating shafts are sequentially arranged on a circle with the center on the axis of the hub, wherein the first driving roller and the second driving roller are symmetrically arranged, and the first limiting roller and the second limiting roller are symmetrically arranged;
The shape of the support body is the same as that of the telescopic through hole, the outer wall of the support body is an arc-shaped side wall with the same curvature as that of the tread, and the center of the inner wall of the support body is fixedly connected with the roller bracket through the support bracket;
The roller support is fixedly connected with the sliding block, so that the support body moves outwards relative to the tread when the sliding block slides outwards, and the support body can be matched with the corresponding telescopic through hole when the sliding block slides inwards, so that the support body is aligned with the outer wall surface of the carcass;
The first connecting piece and the second connecting piece are arranged on one side of the supporting bracket, the third connecting piece and the fourth connecting piece are arranged on the other side of the supporting bracket, the structures of the first connecting piece and the fourth connecting piece are the same, the structures of the second connecting piece and the third connecting piece are the same, one end of the first connecting piece is hinged with the inner wall of the tread at one side of the telescopic unit corresponding to the telescopic through hole, the other end of the first connecting piece is hinged with one end of the second connecting piece, the other end of the second connecting piece is hinged with the inner wall of the supporting piece, one end of the third connecting piece is hinged with one end of the fourth connecting piece, the other end of the fourth connecting piece is hinged with the inner wall of the tread at the other side of the telescopic unit corresponding to the telescopic through hole, the first connecting piece and the fourth connecting piece are respectively provided with a through hole matched with the locking module, the second connecting piece and the third connecting piece are symmetrically arranged, and the first connecting piece and the fourth connecting piece are symmetrically arranged;
the driving module comprises a servo motor, a center bearing, a center shaft, a driving disc and M driving spokes;
The center bearing is arranged in a through hole in the center of the hub, the outer ring is coaxially and fixedly connected with the hub, and the inner ring is coaxially and fixedly connected with the central shaft;
The servo motor is fixed on the hub, and an output shaft of the servo motor is coaxially and fixedly connected with the central shaft;
the center of the driving disc is provided with a through hole for the central shaft to pass through, and the driving disc is sleeved on the central shaft and is fixedly connected with the central shaft in a coaxial way;
The root parts of the driving spokes are fixedly connected with the driving disc and comprise first to fourth side walls which are sequentially connected end to end, wherein the first side wall and the third side wall are cambered surfaces protruding outwards, the second side wall and the fourth side wall are plane and perpendicular to a central shaft, the first side wall and the third side wall are symmetrical, and the joint parts of the first side wall and the third side wall are subjected to fillet treatment;
the locking module comprises M locking units;
The M locking units are arranged on the inner walls of the tread between the M telescopic units in a one-to-one correspondence manner, and each locking unit comprises a shell, a limiting ball, a guide pillar, a first partition board, a second partition board, a pre-tightening spring, a pressing plate, a first limiting rod, a second limiting rod, a first pivot rod, a second pivot rod and first to fourth magnets;
The shell is a cylinder, a cylindrical cavity coaxial with the shell is formed in the shell, a through hole with the diameter smaller than that of the limiting ball is formed in the center of the upper end face of the shell, and a first limiting through hole and a second limiting through hole which are communicated with the inner cavity of the shell are symmetrically formed in the side wall of the shell;
The first partition plate and the second partition plate are round, the center of each partition plate is provided with a through hole matched with the conducting column, the conducting column is arranged in a cavity in the shell, the first partition plate is sleeved outside the conducting column and is fixedly connected with the conducting column in a coaxial manner, the second partition plate is arranged below the first partition plate and is fixedly connected with the inner wall of the shell in a coaxial manner, the upper end of the conducting column is fixedly connected with the limiting ball, the axis of the conducting column passes through the center of the limiting ball, the lower end of the conducting column passes through the through hole in the center of the second partition plate and is vertically fixedly connected with the pressing plate, and the diameter of the through hole in the center of the second partition plate is larger than that of the cross section of the conducting column;
the pre-tightening spring is arranged between the first partition plate and the second partition plate, one end of the pre-tightening spring abuts against the first partition plate, the other end of the pre-tightening spring abuts against the second partition plate, and the pre-tightening spring is in a compressed state, so that the limiting ball abuts against a through hole in the center of the upper end face of the shell, and a part of the limiting ball is exposed out of the shell;
The first limiting rod and the second limiting rod are identical in structure and are L-shaped, each limiting rod comprises a long rod and a short rod, one end of each short rod is vertically and fixedly connected with one end of each long rod, and a pin joint hole is formed in the position, away from the short rod, of one end of each long rod at a preset distance threshold value;
The long rod of the first limiting rod extends into the cavity in the shell from the first limiting through hole at the position away from the short rod, and is pivoted with the inner wall of the shell through the first pivot rod at the position of the long rod pivot hole, so that the short rod faces upwards and the long rod can freely rotate in the limiting through hole around the first pivot rod;
The first magnet is arranged on the lower wall of the first limiting rod long rod positioned at the inner side of the first pivot rod, the second magnet is arranged on the lower wall of the second limiting rod positioned at the inner side of the second pivot rod, and the third magnet is arranged in the shell, is opposite to the first magnet and repels the first magnet;
When the limiting ball is released, the reset spring enables the limiting ball to prop against a through hole in the center of the upper end face of the shell through the guide post, the pressing plate releases the first limiting rod and the second limiting rod, and under the action of the first to fourth magnets, the short rods of the first limiting rod and the second limiting rod move downwards;
when the wheel diameter and the tire width of the non-inflatable wheel are unchanged, the supporting bodies of the M telescopic units are aligned with the outer wall surface of the tire body, at the moment, the roller brackets of the M telescopic units are respectively positioned between the M driving spokes, the first driving roller and the second driving roller of each telescopic unit are respectively propped against the cambered side walls of the driving spokes on the two sides of the driving spokes, the blade tips of the M driving spokes respectively prop against and press down the limit balls of the M locking units, so that the long rod of the first limit rod of the locking unit passes through the through hole of the fourth connecting piece of the telescopic unit on one side of the locking unit and locks the limit hole of the third connecting rod of the telescopic unit on the side through the short rod of the first limit rod, and the long rod of the second limit rod of the locking unit passes through the through hole of the first connecting piece of the telescopic unit on the other side of the locking unit and locks the limit hole of the second connecting rod of the telescopic unit on the side through the short rod of the second limit rod;
Simultaneously, the M telescopic units move outwards under the compression of the first driving roller and the second driving roller of the M telescopic units by the M driving spokes until the blade tips of the M driving spokes are propped between the first limiting roller and the second limiting roller of the M telescopic units.
As a further optimization scheme of the non-inflatable vehicle wheel with the variable wheel diameter and tire width, the servo motor adopts a direct current brushless motor.
As a further optimization scheme of the non-pneumatic wheel with the variable wheel diameter and the variable tire width, the wheel hub is made of alloy steel.
As a further optimization scheme of the non-inflatable wheel with variable wheel diameter and tire width, M is taken as 6.
As a further optimization scheme of the non-inflatable wheel with the variable wheel diameter and the variable tire width, the wheel hub is hollowed out so as to reduce the abrasion of the wheel counterweight and the components.
As a further optimization scheme of the non-inflatable vehicle wheel with the variable wheel diameter and the variable tire width, the tread and the supporting body are made of aluminum materials, polyurethane layers are arranged on the outer walls of the tread and the supporting body, and the tread and the supporting body are adhered by adopting HY-308 cold viscose water.
As a further optimization scheme of the non-pneumatic wheel with the variable wheel diameter and tire width, the locking unit further comprises a fifth magnet and a sixth magnet;
the fifth magnet is arranged in the shell and is positioned below the long rod of the first limiting rod outside the first pivot rod;
The sixth magnet is arranged in the shell and is positioned below the long rod of the second limiting rod outside the second pivot rod;
The long rods of the first limiting rod and the second limiting rod are made of magnetic materials.
Compared with the prior art, the technical scheme provided by the invention has the following technical effects:
1. The automobile steering wheel comprises an elastic tread, hubs, telescopic modules, driving modules and locking modules, when the automobile runs on a good road surface, the wheel diameters and the tire widths of non-inflatable wheels are not changed, supporting bodies of M telescopic units are aligned with the outer wall surfaces of a tire body, roller supports of the M telescopic units are respectively positioned between the M driving spokes, a first driving roller and a second driving roller of each telescopic unit are respectively abutted against side walls of cambered surfaces of the driving spokes on two sides of the driving roller, blade tips of the M driving spokes respectively abut against and press limit balls of the M locking units, so that a long rod of a first limit rod of the locking unit passes through a through hole of a fourth connecting piece of the telescopic unit on one side of the locking unit and locks a limit hole of a third connecting rod of the telescopic unit on the other side of the locking unit through a short rod of the first limit rod, the long rod of a second limit rod of the locking unit passes through a through hole of the first connecting piece of the telescopic unit on the other side of the locking unit and locks a limit hole of the second connecting rod of the telescopic unit on the side of the telescopic unit through the short rod of the second limit rod, and the telescopic modules are locked by the locking modules.
2. When the automobile runs on a rugged road, the wheel diameter and the tire width of the non-inflatable wheels are changed, the driving disc is enabled to rotate by the servo motor, limit balls of the M locking units are loosened by the M driving spokes, the second connecting rods and the third connecting rods of the M telescopic units are unlocked, meanwhile, the M telescopic units are pressed by the M driving spokes to move outwards under the condition that the first driving rollers and the second driving rollers of the M telescopic units are pressed by the M driving spokes, the supporting body is spread outwards until the blade tips of the M driving spokes are propped between the first limit rollers and the second limit rollers of the M telescopic units, and the wheels rotate with larger radius and narrower tire surface, so that the trafficability and environmental adaptability of the automobile are greatly improved.
3. The hub adopts a hollowed-out design, so that the weight of the wheel is reduced, and a good supporting effect is achieved.
4. The polyurethane layer is arranged on the outer wall of the tread, so that the tread has better stability, rebound resilience and mechanical property, the processing mode is simple, and no pollution is caused.
5. According to the invention, the number of the telescopic modules is preferably 6, the central angle corresponding to the supporting body is 45 degrees, and the ground connection is smoother, so that the riding comfort is improved.
6. The invention has simple and compact integral structure, convenient assembly, maintenance and good heat dissipation.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in a normal state;
FIG. 2 is a schematic view of the structure of the present invention in a variable radius state;
FIG. 3 is an exploded view of the structure of the present invention;
FIG. 4 is a schematic view of a hub according to the present invention;
FIG. 5 is a schematic view of a portion of a telescopic module according to the present invention;
Fig. 6 is a cross-sectional view of the locking unit of the present invention.
In the figure, 1-tread, 2-driving disc, 3-driving spoke, 4-central shaft, 5-supporting bracket, 6-roller bracket, 7-first limit rod, 8-shell, 9-second limit rod, 10-second connector, 11-first connector, 12-fourth connector, 13-third connector, 14-hub, 15-supporting body, 16-servo motor, 17-central bearing, 18-slider, 19-first driving roller, 20-first limit roller, 21-second limit roller, 22-second driving roller, 23-limit ball, 24-guide post, 25-first partition plate, 26-second partition plate, 27-pressing plate, 28-first pivot rod, 29-first magnet, 30-fifth magnet, 31-third magnet, 32-fourth magnet, 33-sixth magnet, 34-second pivot rod, 35-second magnet, 36-pretension spring.
Description of the embodiments
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings:
This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the components are exaggerated for clarity.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components and/or sections, these elements, components and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, and/or section from another. Accordingly, a first element, component, and/or section discussed below could be termed a second element, component, or section without departing from the teachings of the present invention.
A non-inflatable wheel with variable wheel diameter and tire width comprises a tread, a hub, a telescopic module, a driving module and a locking module;
The hub is disc-shaped, a through hole for the input shaft to pass through is arranged in the center of the hub, M strip-shaped sliding grooves pointing to the center of the hub are uniformly formed in the circumferential direction of the hub, and M is a natural number greater than or equal to 3;
The tread is a hollow cylinder with two open ends, and M telescopic through holes are uniformly formed in the circumferential direction of the hollow cylinder;
the wheel hubs are coaxially arranged in the tread, and the outer edges of the wheel hubs are fixedly connected with the tread, so that the centers of the M strip-shaped through grooves and the M telescopic through holes are in one-to-one correspondence;
The telescopic module comprises M telescopic units;
the telescopic units comprise sliding blocks, roller brackets, first driving rollers, second driving rollers, first limiting rollers, second limiting rollers, supporting bodies, supporting brackets, reset springs and first to fourth connecting pieces, and M telescopic units and M strip-shaped through grooves are arranged in a one-to-one correspondence manner;
the sliding blocks are arranged in the strip-shaped through grooves corresponding to the telescopic units and can freely slide along the strip-shaped through grooves;
the reset spring is arranged in the strip-shaped through groove, one end of the reset spring is fixedly connected with the hub at the inner side of the strip-shaped through groove, and the other end of the reset spring is fixedly connected with the sliding block and is in a stretching state;
the first driving roller, the first limiting roller, the second limiting roller and the second driving roller are coplanar, the rotating shafts are parallel to the axis of the hub, both ends of the rotating shafts are fixed on the roller support, and the rotating shafts are sequentially arranged on a circle with the center on the axis of the hub, wherein the first driving roller and the second driving roller are symmetrically arranged, and the first limiting roller and the second limiting roller are symmetrically arranged;
The shape of the support body is the same as that of the telescopic through hole, the outer wall of the support body is an arc-shaped side wall with the same curvature as that of the tread, and the center of the inner wall of the support body is fixedly connected with the roller bracket through the support bracket;
The roller support is fixedly connected with the sliding block, so that the support body moves outwards relative to the tread when the sliding block slides outwards, and the support body can be matched with the corresponding telescopic through hole when the sliding block slides inwards, so that the support body is aligned with the outer wall surface of the carcass;
The first connecting piece and the second connecting piece are arranged on one side of the supporting bracket, the third connecting piece and the fourth connecting piece are arranged on the other side of the supporting bracket, the structures of the first connecting piece and the fourth connecting piece are the same, the structures of the second connecting piece and the third connecting piece are the same, one end of the first connecting piece is hinged with the inner wall of the tread at one side of the telescopic unit corresponding to the telescopic through hole, the other end of the first connecting piece is hinged with one end of the second connecting piece, the other end of the second connecting piece is hinged with the inner wall of the supporting piece, one end of the third connecting piece is hinged with one end of the fourth connecting piece, the other end of the fourth connecting piece is hinged with the inner wall of the tread at the other side of the telescopic unit corresponding to the telescopic through hole, the first connecting piece and the fourth connecting piece are respectively provided with a through hole matched with the locking module, the second connecting piece and the third connecting piece are symmetrically arranged, and the first connecting piece and the fourth connecting piece are symmetrically arranged;
the driving module comprises a servo motor, a center bearing, a center shaft, a driving disc and M driving spokes;
The center bearing is arranged in a through hole in the center of the hub, the outer ring is coaxially and fixedly connected with the hub, and the inner ring is coaxially and fixedly connected with the central shaft;
The servo motor is fixed on the hub, and an output shaft of the servo motor is coaxially and fixedly connected with the central shaft;
the center of the driving disc is provided with a through hole for the central shaft to pass through, and the driving disc is sleeved on the central shaft and is fixedly connected with the central shaft in a coaxial way;
The root parts of the driving spokes are fixedly connected with the driving disc and comprise first to fourth side walls which are sequentially connected end to end, wherein the first side wall and the third side wall are cambered surfaces protruding outwards, the second side wall and the fourth side wall are plane and perpendicular to a central shaft, the first side wall and the third side wall are symmetrical, and the joint parts of the first side wall and the third side wall are subjected to fillet treatment;
the locking module comprises M locking units;
The M locking units are arranged on the inner walls of the tread between the M telescopic units in a one-to-one correspondence manner, and each locking unit comprises a shell, a limiting ball, a guide pillar, a first partition board, a second partition board, a pre-tightening spring, a pressing plate, a first limiting rod, a second limiting rod, a first pivot rod, a second pivot rod and first to fourth magnets;
The shell is a cylinder, a cylindrical cavity coaxial with the shell is formed in the shell, a through hole with the diameter smaller than that of the limiting ball is formed in the center of the upper end face of the shell, and a first limiting through hole and a second limiting through hole which are communicated with the inner cavity of the shell are symmetrically formed in the side wall of the shell;
The first partition plate and the second partition plate are round, the center of each partition plate is provided with a through hole matched with the conducting column, the conducting column is arranged in a cavity in the shell, the first partition plate is sleeved outside the conducting column and is fixedly connected with the conducting column in a coaxial manner, the second partition plate is arranged below the first partition plate and is fixedly connected with the inner wall of the shell in a coaxial manner, the upper end of the conducting column is fixedly connected with the limiting ball, the axis of the conducting column passes through the center of the limiting ball, the lower end of the conducting column passes through the through hole in the center of the second partition plate and is vertically fixedly connected with the pressing plate, and the diameter of the through hole in the center of the second partition plate is larger than that of the cross section of the conducting column;
the pre-tightening spring is arranged between the first partition plate and the second partition plate, one end of the pre-tightening spring abuts against the first partition plate, the other end of the pre-tightening spring abuts against the second partition plate, and the pre-tightening spring is in a compressed state, so that the limiting ball abuts against a through hole in the center of the upper end face of the shell, and a part of the limiting ball is exposed out of the shell;
The first limiting rod and the second limiting rod are identical in structure and are L-shaped, each limiting rod comprises a long rod and a short rod, one end of each short rod is vertically and fixedly connected with one end of each long rod, and a pin joint hole is formed in the position, away from the short rod, of one end of each long rod at a preset distance threshold value;
The long rod of the first limiting rod extends into the cavity in the shell from the first limiting through hole at the position away from the short rod, and is pivoted with the inner wall of the shell through the first pivot rod at the position of the long rod pivot hole, so that the short rod faces upwards and the long rod can freely rotate in the limiting through hole around the first pivot rod;
The first magnet is arranged on the lower wall of the first limiting rod long rod positioned at the inner side of the first pivot rod, the second magnet is arranged on the lower wall of the second limiting rod positioned at the inner side of the second pivot rod, and the third magnet is arranged in the shell, is opposite to the first magnet and repels the first magnet;
When the limiting ball is released, the reset spring enables the limiting ball to prop against a through hole in the center of the upper end face of the shell through the guide post, the pressing plate releases the first limiting rod and the second limiting rod, and under the action of the first to fourth magnets, the short rods of the first limiting rod and the second limiting rod move downwards;
when the wheel diameter and the tire width of the non-inflatable wheel are unchanged, the supporting bodies of the M telescopic units are aligned with the outer wall surface of the tire body, at the moment, the roller brackets of the M telescopic units are respectively positioned between the M driving spokes, the first driving roller and the second driving roller of each telescopic unit are respectively propped against the cambered side walls of the driving spokes on the two sides of the driving spokes, the blade tips of the M driving spokes respectively prop against and press down the limit balls of the M locking units, so that the long rod of the first limit rod of the locking unit passes through the through hole of the fourth connecting piece of the telescopic unit on one side of the locking unit and locks the limit hole of the third connecting rod of the telescopic unit on the side through the short rod of the first limit rod, and the long rod of the second limit rod of the locking unit passes through the through hole of the first connecting piece of the telescopic unit on the other side of the locking unit and locks the limit hole of the second connecting rod of the telescopic unit on the side through the short rod of the second limit rod;
Simultaneously, the M telescopic units move outwards under the compression of the first driving roller and the second driving roller of the M telescopic units by the M driving spokes until the blade tips of the M driving spokes are propped between the first limiting roller and the second limiting roller of the M telescopic units.
The servo motor is a direct current brushless motor, the hub is made of alloy steel and hollowed out to reduce the abrasion of the wheel counterweight and the components, the tread and the supporting body are made of aluminum materials, polyurethane layers are arranged on the outer walls of the tread and the supporting body, HY-308 cold glue water adhesion is adopted, and M is preferably 6.
The locking unit may further include a fifth magnet and a sixth magnet;
the fifth magnet is arranged in the shell and is positioned below the long rod of the first limiting rod outside the first pivot rod;
The sixth magnet is arranged in the shell and is positioned below the long rod of the second limiting rod outside the second pivot rod;
The long rods of the first limiting rod and the second limiting rod are made of magnetic materials.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310652281.8A CN116766824B (en) | 2023-06-05 | 2023-06-05 | A non-pneumatic wheel with variable wheel diameter and tire width |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310652281.8A CN116766824B (en) | 2023-06-05 | 2023-06-05 | A non-pneumatic wheel with variable wheel diameter and tire width |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203846A (en) * | 2018-09-12 | 2019-01-15 | 厦门正新橡胶工业有限公司 | A kind of telescopic spare tyre |
| CN115571237A (en) * | 2022-11-14 | 2023-01-06 | 国能山西河曲发电有限公司 | Wall climbing robot convenient to adjustment magnetism adsorption affinity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3881261B2 (en) * | 2001-02-27 | 2007-02-14 | トモエ電機工業株式会社 | Tread surface forming body used for wheels, orbital wheel mounted with the same, moving body including the same, and manufacturing method of tread surface forming body |
| US9662939B2 (en) * | 2009-07-28 | 2017-05-30 | Bridgestone Americas Tire Operations, Llc | Tension-based non-pneumatic tire |
| US10406852B2 (en) * | 2017-10-27 | 2019-09-10 | The Goodyear Tire & Rubber Company | Non-pneumatic support structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203846A (en) * | 2018-09-12 | 2019-01-15 | 厦门正新橡胶工业有限公司 | A kind of telescopic spare tyre |
| CN115571237A (en) * | 2022-11-14 | 2023-01-06 | 国能山西河曲发电有限公司 | Wall climbing robot convenient to adjustment magnetism adsorption affinity |
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