CN110654164B - Wheel of vehicle - Google Patents
Wheel of vehicle Download PDFInfo
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- CN110654164B CN110654164B CN201910860899.7A CN201910860899A CN110654164B CN 110654164 B CN110654164 B CN 110654164B CN 201910860899 A CN201910860899 A CN 201910860899A CN 110654164 B CN110654164 B CN 110654164B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
- B60B19/02—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group convertible, e.g. from road wheel to rail wheel; Wheels specially designed for alternative use on road and rail
Abstract
The invention discloses a wheel, which comprises a center frame and a plurality of pairs of arc wheel hubs; each pair of arc wheel hubs is connected with the central frame; a plurality of pairs of arc wheel hubs form a complete wheel hub together; each pair of arc hubs comprises a first arc hub and a second arc hub; one end of the first arc-shaped hub is hinged with one end of the second arc-shaped hub through a hinge joint; the central frame is provided with a plurality of motion form changing mechanisms which are used for enabling the first arc wheel hub and the second arc wheel hub to rotate around the hinged connection part so as to change the motion form of the wheel. The invention can realize the movement of the wheels on the flat ground and the stairs through the conversion of the movement form, and the wheels of the invention can be used on moving tools needing to climb the stairs, such as wheelchairs and the like.
Description
Technical Field
The invention belongs to the technical field of wheels, and particularly relates to a wheel.
Background
The wheel is a rigid wheel that holds the inner rim of the tire, supports the tire, and bears the load in conjunction with the tire. A wheel is a rotating assembly subject to loads between the tyre and the axle, and is usually composed of two main parts, rim and spoke (GB/T2933-2009). The rim is a member for mounting and supporting the tire on the wheel, and the spoke is a support member interposed between the axle and the rim on the wheel. The wheel may include a hub in addition to the above-described components. The tire is generally mounted on a metal rim, and is capable of supporting a vehicle body, buffering external impact, achieving contact with a road surface and ensuring the driving performance of a vehicle. Wheels are often used in complex and harsh conditions and are subject to various deformations, loads, forces and high and low temperature effects during driving.
The conventional wheel is generally in a circular structure and can be used on flat ground or flat ground with a certain gradient, but cannot play a role on a road surface with steps such as stairs.
Disclosure of Invention
In order to solve the above problems of the prior art, the present invention is directed to a wheel.
The technical scheme adopted by the invention is as follows:
a wheel comprises a center frame and a plurality of pairs of arc wheel hubs; each pair of arc wheel hubs is connected with the central frame; the circular arc wheel hubs form a complete wheel hub together, and each pair of circular arc wheel hubs comprises a first circular arc wheel hub and a second circular arc wheel hub; one end of the first arc-shaped hub is hinged with one end of the second arc-shaped hub through a hinge joint; the central frame is provided with a plurality of motion form changing mechanisms which are used for enabling the first arc wheel hub and the second arc wheel hub to rotate around the hinged connection part so as to change the motion form of the wheel.
Further, each of the kinematic form changing structures includes: the retraction mechanism is used for changing the distance between the arc wheel hub and the central frame so as to change the motion form of the wheel; the telescopic mechanism is arranged on the center frame and is used for acting on the hinged part to change the motion state of the wheel; and a power mechanism for providing power for the telescopic structure and the retraction mechanism.
Further, the retraction mechanism comprises a first rotating slide bar and a second rotating slide bar; a sliding shaft seat on each first arc wheel hub is connected with one end of a first rotating slide bar in a sliding manner, and the other end of the first rotating slide bar is hinged with the central frame; a sliding shaft seat on each second arc-shaped hub is connected with one end of a second rotating sliding rod in a sliding manner; the other end of the second rotary sliding rod is hinged with the center frame.
Further, the telescopic mechanism comprises a telescopic device; the power mechanism is connected with the telescopic device; one end of the telescopic device is arranged on a connecting line of one end of the telescopic device and the hinge part, when one end of the telescopic device extends and is in contact with the hinge part, each pair of arc-shaped hubs rotate around the hinge part and simultaneously the ends, far away from each other, of the first arc-shaped hub and the second arc-shaped hub move towards the direction close to the center frame; when the telescopic device contracts and is far away from the hinge part, each pair of rotating slide rods drives each pair of arc hubs to move towards the direction far away from the central frame.
Furthermore, the telescopic mechanism comprises a screw rod, a screw rod sleeve and a fixed cylinder; external threads are arranged on the outer side of the screw rod; inner threads are arranged on the inner sides of the screw rod sleeve and the fixed cylinder; the screw rod is in threaded connection with the internal thread of the screw rod sleeve and the internal thread of the fixed cylinder in sequence through external threads; one end of the screw rod extends out of the fixed cylinder and is opposite to the hinge part, and the other end of the screw rod extends out of the screw rod sleeve; the screw rod sleeve is connected with the power mechanism; the fixed cylinder is fixed on the center frame.
Further, the outer edges of the cross-sections of all the circular-arc hubs are on a circle centered on the wheel center when the hinge portion of the complete hub is farthest from the center frame.
Furthermore, the center frame is a triangular center frame, and each corner of the triangular center frame is provided with a telescopic mechanism; the hinge parts of each pair of arc wheel hubs are opposite to the telescopic mechanism; the triangular central frame is provided with three pairs of arc hubs, a sliding shaft seat on a first arc hub of each pair of arc hubs is connected with one end of a first rotating slide rod in a sliding manner, and the other end of the first rotating slide rod is hinged with one side edge of the triangular central frame; a sliding shaft seat on a second arc hub of each pair of arc hubs is connected with one end of a second rotating slide rod in a sliding manner, and the other end of the second rotating slide rod is hinged with the adjacent side edge of the side edge; the sections of the sliding shaft seat on the first arc-shaped hub and the sliding shaft seat on the second arc-shaped hub are both strip-shaped structures.
Furthermore, the power mechanism comprises a triangular toothed chain, two auxiliary toothed chain transmission structures and a driving gear transmission mechanism; the two auxiliary toothed chain transmission structures and the driving gear transmission mechanism are respectively arranged on three corners of the triangular toothed chain, and the three corners of the triangular toothed chain correspond to the three corners of the triangular center frame one by one; the telescopic mechanisms on the three corners of the triangular central frame are respectively a first telescopic mechanism, a second telescopic mechanism and a third telescopic mechanism;
the driving gear chain transmission mechanism comprises a motor straight gear, a motor, a middle straight gear and a gear chain sleeve gear; the motor is connected with a motor straight gear; the motor straight gear is meshed with the middle straight gear, and the middle straight gear is meshed with the gear chain sleeve gear; the outer side of the gear chain sleeve gear is meshed with a triangular gear chain, and the upper side of the gear chain sleeve gear is meshed with a sleeve bevel gear on the outer side of a screw rod sleeve of the first telescopic mechanism;
each auxiliary toothed chain transmission structure comprises an auxiliary toothed chain gear and an auxiliary sleeve bevel gear; an auxiliary sleeve gear is fixedly connected to the auxiliary toothed chain gear; the auxiliary toothed chain gear is meshed with the triangular toothed chain;
the auxiliary sleeve bevel gears of the two auxiliary toothed chain transmission structures are respectively arranged on the outer sides of the screw rod sleeves of the second telescopic mechanism and the third telescopic mechanism; the auxiliary socket bevel gear of each auxiliary gear train transmission structure meshes with the auxiliary socket gear of each auxiliary gear train transmission structure.
Further, when the hinge part of the complete hub is farthest away from the center frame, the cross section of the complete hub is of a circular structure; when the hinge part of the complete hub is closest to the center frame, the cross section of the complete hub is of a Lelo triangular structure.
Further, a mandrel is arranged in the center of the center frame; the wheel further comprises a control system; the control system comprises a processor, a first proximity switch and a storage battery, wherein the first proximity switch is arranged at one end of each screw rod, which is close to the mandrel, and the storage battery supplies power to the control system and the motor; the processor is respectively connected with the first proximity switch motor; the motor is a wireless motor.
The invention has the beneficial effects that: the wheel at least can complete the conversion of the circular motion form and the Lelo triangle motion form, can be used on a moving tool such as a wheelchair and the like which needs to frequently climb stairs, combines the fixed-width curve characteristic of the Lelo triangle with the wheel to realize going up and down the stairs, and utilizes a power mechanism to realize the form conversion of the tire in the advancing process; the invention can realize the function of conveniently going up and down stairs; only one person is needed to operate, and upstairs and downstairs can be completed; therefore, the invention can solve the problem of labor waste for going upstairs and downstairs.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic view of the back structure of the present invention.
Fig. 3 is a schematic view of the form active switching mechanism of the present invention.
Fig. 4 is a schematic view of the form assisting switching mechanism of the present invention.
FIG. 5 is a schematic view of the triangular toothed chain of the present invention.
FIG. 6 is a schematic illustration of the position of a portion of the components of the control system of the present invention.
In the figure: 1-a triangular centre frame; 2-a first arc hub; 3-a first rotary slide bar; 4-a central frame hinge; 5-a first connection block; 6-a hinge; 7-a second connecting block; 8-a second arc hub; 9-a fixed groove; 10-a screw rod; 11-a mandrel; 12-an auxiliary sleeve; 13-triangular toothed chain; 14-sliding shaft seat; 15-a first proximity switch; 16-a second proximity switch; 17-motor spur gear; 18-a motor; 19-intermediate spur gears; 20-toothed chain sleeve gear; 21-a storage battery; 22-sleeve bevel gear; 23-a screw mandrel sleeve; 24-an auxiliary toothed sprocket; 25-an auxiliary sleeve gear; 26-auxiliary sleeve bevel gear; 27-a stationary cylinder; 28-fixed orifice plate.
Detailed Description
The invention is further explained below with reference to the drawings and the specific embodiments.
Example 1
A wheel as shown in figures 1-6, comprising a central frame and pairs of circular-arc hubs; each pair of arc wheel hubs is connected with the central frame; a plurality of pairs of arc hubs form a complete hub together, and each pair of arc hubs comprises a first arc hub 2 and a second arc hub 8; the right end of the first arc wheel hub 2 is connected with the left end of the second arc wheel hub 8 through a hinged connection part; the central frame is provided with a plurality of motion form changing mechanisms which are used for enabling the first arc wheel hub and the second arc wheel hub to rotate around the hinged connection part so as to change the motion form of the wheel.
The motion form changing mechanism on the central frame enables the first arc wheel hub and the second arc wheel hub on two sides of the hinge part 6 to rotate around the hinge part, so that the shape change of the complete wheel hub is realized, and the change of the motion form is realized; the motion state is the shape and state of the complete hub during motion.
For example, when the hinge portion of the first and second circular-arc hubs is closest to the center frame, the shape of the complete hub approximates to that of the center frame; when the central frame is of a polygonal structure, the outer edge of the section of the complete hub is of a polygonal structure with an arc-shaped edge; thereby facilitating the climbing of uneven ground such as step ground and the like; when the distance between the hinge parts of the first arc-shaped hub and the second arc-shaped hub and the central frame is farthest, the shape of the section of the complete hub is close to a circular structure; thereby facilitating movement across the flat ground. Preferably, the cross section of the complete hub is a circular structure when the hinge portion of the complete hub is farthest from the center frame; when the hinge part of the complete hub is closest to the center frame, the cross section of the complete hub is of a Lelo triangular structure. The embodiment refers to a Lelo triangle, and the tire is made according to the principle of a fixed width curve, so that the tire has the capability of stably going upstairs, is simple in mechanism, is not very complicated, and has a remarkable capability in obstacle crossing.
The motion form changing mechanism can adopt various implementation modes. The central frame can be in a regular triangle, a regular quadrangle, a regular pentagon, a regular hexagon and other structures; telescopic structures such as elastic part springs can be arranged on the corners of each central frame; one end of the spring is connected with the hinge part 6; the other end of the spring is connected with the central frame, and the upper end of the first arc-shaped hub and the lower end of the second arc-shaped hub are also connected with the central frame through the spring; therefore, the power mechanism is used for adjusting the telescopic motion of the spring and the reaction of the ground to the hinge part, so that the hinge part can be close to or far away from the center frame, and the motion form of the complete hub is changed.
The corners of each central frame can be provided with a conventional pneumatic telescopic rod or a hydraulic telescopic rod, and one end of each telescopic rod is connected with the hinge part 6; the other end of the spring is connected with the center frame; the upper end of the first arc wheel hub and the lower end of the second arc wheel hub are connected with the center frame through springs; therefore, the power mechanism controls the telescopic motion of the telescopic rod, the hinge part can approach and leave the central frame, and the motion form of the complete hub is changed.
The kinematic form change mechanism may also be implemented in other ways known to those skilled in the art that enable the hinge portion 6 to move closer to and further away from the steady rest.
Example 2
A wheel as shown in figures 1-6, comprising a central frame and pairs of circular-arc hubs; each pair of arc wheel hubs is connected with the central frame; a plurality of pairs of arc hubs form a complete hub together, and each pair of arc hubs comprises a first arc hub 2 and a second arc hub 8; the first connecting block 5 at the right end of the first arc-shaped hub 2 is connected with the second connecting block 7 at the left end of the second arc-shaped hub 8 through a hinge part 6; the central frame is provided with a plurality of motion form changing mechanisms which are used for enabling the first arc wheel hub and the second arc wheel hub to rotate around the hinged connection part so as to change the motion form of the wheel. Preferably, the cross section of the complete hub is a circular structure when the hinge portion of the complete hub is farthest from the center frame; when the hinge part of the complete hub is closest to the center frame, the cross section of the complete hub is of a Lelo triangular structure.
In this embodiment, the motion pattern changing mechanism is optimized based on embodiment 1.
Each motion configuration changing structure includes: the retraction mechanism is used for changing the distance between the arc wheel hub and the central frame so as to change the motion form of the wheel; the telescopic mechanism is arranged on the center frame and is used for acting on the hinged part to change the motion state of the wheel; and a power mechanism for providing power for the telescopic structure and the retraction mechanism.
Specifically, the retraction mechanism is used for retracting the upper end of the first arc-shaped hub and the lower end of the second arc-shaped hub towards the direction close to or far away from the center frame; the telescopic mechanism enables the hinge part to move close to or far away from the center frame through telescopic; the power mechanism provides power for the retraction mechanism and the extension mechanism.
The telescopic mechanism comprises a telescopic device; the power mechanism is connected with the telescopic device; one end of the telescopic device is arranged on a connecting line of one end of the telescopic device and the hinge part, when one end of the telescopic device extends and is in contact with the hinge part, each pair of arc-shaped hubs rotate around the hinge part and simultaneously the ends, far away from each other, of the first arc-shaped hub and the second arc-shaped hub move towards the direction close to the center frame; when the telescopic device contracts and is far away from the hinge part, each pair of rotating slide rods drives each pair of arc hubs to move towards the direction far away from the central frame.
Therefore, the lower end of the first arc-shaped hub and the upper end of the second arc-shaped hub rotate through the hinge part finally through the telescopic device, and the upper end of the first arc-shaped hub and the lower end of the second arc-shaped hub are retracted and extended towards or away from the center frame through the retraction and extension mechanism; the two mechanisms can make the form conversion of the complete hub more rapid and stable under the action of the power mechanism.
Specifically, the retraction mechanism comprises a first rotating slide bar and a second rotating slide bar; a sliding shaft seat on each first arc-shaped hub is connected with the upper end of a first rotating slide rod in a sliding manner, and the lower end of the first rotating slide rod is hinged with the central frame through a central frame hinged part; a sliding shaft seat on each second arc hub is connected with the upper end of a second rotating sliding rod in a sliding manner; the lower end of the second rotating slide rod is hinged with the central frame through a central frame hinged part.
When the first arc hub and the second arc hub need to be retracted, the first arc hub and the second arc hub are closer to the central frame when the first arc hub and the second arc hub complete the conversion of the Lelo triangle structure through the rotation of the hinge part of the central frame and the sliding of the first rotating slide rod and the second rotating slide rod in the slide shaft seat, so that the shape of the complete hub is closer to a perfect Lelo triangle; thereby being more beneficial to climbing.
Example 3
This example was further modified and optimized as follows based on example 2.
A wheel as shown in figures 1-6, comprising a central frame and pairs of circular-arc hubs; each pair of arc wheel hubs is connected with the central frame; a plurality of pairs of arc hubs form a complete hub together, and each pair of arc hubs comprises a first arc hub 2 and a second arc hub 8; the first connecting block 5 at the right end of the first arc-shaped hub 2 is connected with the second connecting block 7 at the left end of the second arc-shaped hub 8 through a hinge part 6; the central frame is provided with a plurality of motion form changing mechanisms which are used for enabling the first arc wheel hub and the second arc wheel hub to rotate around the hinged connection part so as to change the motion form of the wheel.
Each motion configuration changing structure includes: a retraction mechanism, a telescopic mechanism and a power mechanism. Specifically, the retraction mechanism is used for retracting the upper end of the first arc-shaped hub and the lower end of the second arc-shaped hub towards the direction close to or far away from the center frame; the telescopic mechanism enables the hinge part to move close to or far away from the center frame through telescopic; the power mechanism provides power for the retraction mechanism and the extension mechanism.
The retraction mechanism comprises a first rotating slide bar and a second rotating slide bar; a sliding shaft seat on each first arc-shaped hub is connected with the upper end of a first rotating slide rod in a sliding manner, and the lower end of the first rotating slide rod is hinged with the central frame through a central frame hinged part; a sliding shaft seat on each second arc hub is connected with the upper end of a second rotating sliding rod in a sliding manner; the lower end of the second rotating slide rod is hinged with the central frame through a central frame hinged part.
Preferably, the center frame is a triangular center frame 1, and each corner of the triangular center frame is provided with a telescopic mechanism; the hinge parts of each pair of arc wheel hubs are opposite to the telescopic mechanism; the triangular central frame is provided with three pairs of arc hubs, a sliding shaft seat 14 on a first arc hub of each pair of arc hubs is connected with the upper end of a first rotating slide bar in a sliding way, and the lower end of the first rotating slide bar 3 is hinged with one side edge of the triangular central frame through a central frame hinge part 4; a sliding shaft seat 14 on a second arc hub of each pair of arc hubs is connected with the upper end of a second rotating slide rod in a sliding manner, and the lower end of the second rotating slide rod is hinged with the adjacent side edge of the side edge through a central frame hinge joint part 4; the sections of the sliding shaft seat on the first arc-shaped hub and the sliding shaft seat on the second arc-shaped hub are both strip-shaped structures.
Preferably, the cross section of the first circular-arc hub and the second circular-arc hub is an oval structure. The sliding shaft seat comprises a sliding groove, sliding holes are formed in two opposite sides of the sliding groove, and a sliding portion capable of sliding in the sliding hole is arranged at the upper end of the first rotating sliding rod or the second rotating sliding rod, so that the sliding portion of the first rotating sliding rod or the second rotating sliding rod can slide back and forth in the sliding hole of the sliding shaft seat, and each pair of arc hubs can be conveniently folded and put down.
The power mechanism comprises a triangular toothed chain 13, two auxiliary toothed chain transmission structures and a driving gear transmission mechanism; the two auxiliary toothed chain transmission structures and the driving gear transmission mechanism are respectively arranged on three corners of the triangular toothed chain, and the three corners of the triangular toothed chain correspond to the three corners of the triangular center frame one by one; the telescopic mechanisms on the three corners of the triangular center frame are respectively a first telescopic mechanism, a second telescopic mechanism and a third telescopic mechanism.
As shown in fig. 3, the telescopic mechanism includes a screw rod 10, a screw rod sleeve 23 and a fixed cylinder 27; external threads are arranged on the outer side of the screw rod; inner threads are arranged on the inner sides of the screw rod sleeve and the fixed cylinder; the screw rod is in threaded connection with the internal thread of the screw rod sleeve and the internal thread of the fixed cylinder in sequence through external threads; the lower end of the screw rod extends out of the fixed cylinder and is opposite to the hinge part, and the other end of the screw rod 10 extends out of the screw rod sleeve 23; the outer side of the screw rod sleeve is connected with a power mechanism through a sleeve bevel gear 22; the fixed cylinder is fixed on the center frame. The first telescopic mechanism, the second telescopic mechanism, the third telescopic mechanism and the telescopic mechanism have the same structure.
As shown in fig. 3, the driving gear transmission mechanism includes a motor spur gear 17, a motor 18, an intermediate spur gear 19, and a gear sleeve gear 20; the motor straight gear 17 is connected to the lower end of the motor 18; the motor straight gear 17 is meshed with gear teeth on the upper side of the middle straight gear 19, the toothed chain sleeve gear 20 is respectively meshed with the middle straight gear 19 and the triangular toothed chain 13, and a conical gear is arranged on the upper side of the toothed chain sleeve gear 20; the bevel gear is meshed with a sleeve bevel gear 22 on the outer side of a screw rod sleeve 23 of the first telescopic mechanism; the fixed cylinder 27 is fixed on the center frame; preferably, a fixed orifice plate is arranged between the fixed cylinder 27 and the screw rod sleeve 23, and the lower end of the screw rod sequentially penetrates through the screw rod sleeve 23, the fixed orifice plate 28 and the fixed cylinder 27; the fixed orifice plate is sleeved with the screw rod; the fixed orifice plate is also fixed to the center frame, and the fixed orifice plate 28 prevents the screw sleeve 23 from moving toward the fixed cylinder 27 when rotating.
Each auxiliary toothed chain transmission structure comprises an auxiliary toothed chain gear 24 and an auxiliary sleeve bevel gear 26; an auxiliary sleeve gear 25 is fixedly connected to the auxiliary toothed chain gear 24; the auxiliary toothed chain gear 24 is meshed with the triangular toothed chain 13; the auxiliary sleeve gear 25 is engaged with an auxiliary sleeve bevel gear 26, and the auxiliary sleeve bevel gear 26 is provided on the screw sleeve of the second telescopic mechanism or the third telescopic mechanism, that is, the auxiliary sleeve 12.
Specifically, the auxiliary sleeve bevel gears of the two auxiliary toothed chain transmission structures are respectively arranged on the outer sides of the screw rod sleeves of the second telescopic mechanism and the third telescopic mechanism; the auxiliary socket bevel gear 26 of each auxiliary gear train transmission is in mesh with the auxiliary socket gear 25 of each auxiliary gear train transmission.
When the power mechanism runs, the triangular toothed chain 13 is driven to move by the motor straight gear 17 below the motor 18, the triangular toothed chain is driven to move, and the telescopic mechanisms on the three corners move simultaneously to complete the transformation of the movement form; specifically, the motor drives the middle straight gear 19 and the toothed chain sleeve gear 20 to rotate through the motor straight gear 17; the bevel gear on the upper side of the gear chain sleeve gear 20 drives the screw rod sleeve to rotate through meshing with the sleeve bevel gear, so that the screw rod is driven to move along the thread in the fixed cylinder, and the up-and-down movement of the screw rod is realized; meanwhile, the two auxiliary toothed chain transmission structures drive the auxiliary toothed chain gears 24 at other two corners to move under the driving of the movement of the triangular toothed chain, so that the up-and-down movement of the screw rods at other two corners is realized.
When the screw rod moves up and down, the sliding parts of the first rotating slide rod and the second rotating slide rod on each side of the triangular central frame slide in the sliding shaft seat under the action of the screw rod on the hinge part so as to realize the folding or unfolding of each first arc-shaped hub and each second arc-shaped hub; thereby realizing the conversion of the motion state.
Specifically, all the first circular arc hubs and the second circular arc hubs are arranged in shapes, and can be in various shapes under the condition of meeting the motion forms of a circular structure and a Lelo triangular structure. Preferably, the cross section of the first circular arc hub and the second circular arc hub is an oval structure; the outer edges of the cross-sections of all circular arc hubs are on a circle centered on the wheel center when the hinge of the complete hub is farthest from the center frame. Preferably, the cross section of the complete hub is a circular structure when the hinge portion of the complete hub is farthest from the center frame; when the hinge part of the complete hub is closest to the center frame, the cross section of the complete hub is of a Lelo triangular structure.
When the device is used, the center of the center frame is provided with a mandrel 11, and the mandrel is provided with a fixing groove 9 for connecting a wheel shaft; the wheel further comprises a control system; the control system comprises a processor, a first proximity switch and a storage battery, wherein the first proximity switch is arranged at one end of each screw rod, which is close to the mandrel, and the storage battery supplies power to the control system and the motor; the processor is respectively connected with the first proximity switch 15 and the motor; the motor is a wireless motor.
In order to facilitate the convenient switching motion state when the wheel is in operation, the wheel also comprises a control system; the control system comprises a processor, a first proximity switch and a storage battery, wherein the first proximity switch is arranged at one end of each screw rod close to the mandrel; the motor is a wireless motor. Preferably, the control system further comprises a wireless remote control terminal. The processor is respectively connected with the first proximity switch, the wireless motor and the wireless remote control terminal.
The transformation of the motion form can be realized by the following modes: when the upper end of the screw rod moves towards the direction close to the mandrel, the first proximity switch feeds back a signal to the processor, and the processor controls the motor to stop rotating, so that the conversion of the motion form from a circle to a Lelo triangle is completed; when the conversion from the Lelo triangle to the circle is needed, the wireless remote control terminal sends an instruction to the processor to control the motor to enable the upper end of the screw rod to move towards the direction away from the mandrel, the first proximity switch feeds back a signal to the processor, and meanwhile, after the motor runs for a preset time, the screw rod reaches a preset position, so that the conversion from the Lelo triangle to the circle is completed.
The present embodiment further provides a solution, as shown in fig. 6, the control system includes a processor, a first proximity switch disposed on one end of each lead screw close to the spindle, and a storage battery 21 for supplying power to the control system and the motor; a second proximity switch 16 is arranged on the side edge of each triangular center frame, and the processor is respectively connected with the first proximity switch, the second proximity switch and the motor; the motor is a wireless motor. And signals of the first proximity switch and the second proximity switch are fed back to the processor, and the conversion of the Lelo triangular or circular motion form is completed under the control of the wireless remote control terminal.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.
Claims (8)
1. A wheel, characterized by: comprises a central frame and a plurality of pairs of arc wheel hubs; each pair of arc wheel hubs is connected with the central frame; the circular arc wheel hubs form a complete wheel hub together, and each pair of circular arc wheel hubs comprises a first circular arc wheel hub and a second circular arc wheel hub; one end of the first arc-shaped hub is hinged with one end of the second arc-shaped hub through a hinge joint; the central frame is provided with a plurality of motion form changing mechanisms which are used for enabling the first arc-shaped wheel hub and the second arc-shaped wheel hub to rotate around the hinged parts so as to change the motion form of the wheel;
each motion configuration changing structure includes: the retraction mechanism is used for changing the distance between the arc wheel hub and the central frame so as to change the motion form of the wheel; the telescopic mechanism is arranged on the center frame and is used for acting on the hinged part to change the motion state of the wheel; and a power mechanism for providing power for the telescopic structure and the retraction mechanism;
the retraction mechanism comprises a first rotating slide bar and a second rotating slide bar; a sliding shaft seat on each first arc wheel hub is connected with one end of a first rotating slide bar in a sliding manner, and the other end of the first rotating slide bar is hinged with the central frame; a sliding shaft seat on each second arc-shaped hub is connected with one end of a second rotating sliding rod in a sliding manner; the other end of the second rotary sliding rod is hinged with the center frame.
2. A wheel according to claim 1, wherein: the telescopic mechanism comprises a telescopic device; the power mechanism is connected with the telescopic device; one end of the telescopic device is arranged on a connecting line of one end of the telescopic device and the hinge part, when one end of the telescopic device extends and is in contact with the hinge part, each pair of arc-shaped hubs rotate around the hinge part and simultaneously the ends, far away from each other, of the first arc-shaped hub and the second arc-shaped hub move towards the direction close to the center frame; when the telescopic device contracts and is far away from the hinge part, each pair of rotating slide rods drives each pair of arc hubs to move towards the direction far away from the central frame.
3. A wheel according to claim 2, wherein: the telescopic mechanism comprises a screw rod, a screw rod sleeve and a fixed cylinder; external threads are arranged on the outer side of the screw rod; inner threads are arranged on the inner sides of the screw rod sleeve and the fixed cylinder; the screw rod is in threaded connection with the internal thread of the screw rod sleeve and the internal thread of the fixed cylinder in sequence through external threads; one end of the screw rod extends out of the fixed cylinder and is opposite to the hinge part, and the other end of the screw rod extends out of the screw rod sleeve; the screw rod sleeve is connected with the power mechanism; the fixed cylinder is fixed on the center frame.
4. A wheel according to claim 3, wherein: the outer edges of the cross-sections of all circular arc hubs are on a circle centered on the wheel center when the hinge of the complete hub is farthest from the center frame.
5. A wheel according to claim 4, wherein: the center frame is a triangular center frame, and each corner of the triangular center frame is provided with a telescopic mechanism; the hinge parts of each pair of arc wheel hubs are opposite to the telescopic mechanism; the triangular central frame is provided with three pairs of arc hubs, a sliding shaft seat on a first arc hub of each pair of arc hubs is connected with one end of a first rotating slide rod in a sliding manner, and the other end of the first rotating slide rod is hinged with one side edge of the triangular central frame; a sliding shaft seat on a second arc hub of each pair of arc hubs is connected with one end of a second rotating slide rod in a sliding manner, and the other end of the second rotating slide rod is hinged with the adjacent side edge of the side edge; the sections of the sliding shaft seat on the first arc-shaped hub and the sliding shaft seat on the second arc-shaped hub are both strip-shaped structures.
6. A wheel according to claim 5, wherein: the power mechanism comprises a triangular toothed chain, two auxiliary toothed chain transmission structures and a driving gear transmission mechanism; the two auxiliary toothed chain transmission structures and the driving gear transmission mechanism are respectively arranged on three corners of the triangular toothed chain, and the three corners of the triangular toothed chain correspond to the three corners of the triangular center frame one by one; the telescopic mechanisms on the three corners of the triangular central frame are respectively a first telescopic mechanism, a second telescopic mechanism and a third telescopic mechanism;
the driving gear chain transmission mechanism comprises a motor straight gear, a motor, a middle straight gear and a gear chain sleeve gear; the motor is connected with a motor straight gear; the motor straight gear is meshed with the middle straight gear, and the middle straight gear is meshed with the gear chain sleeve gear; the outer side of the gear chain sleeve gear is meshed with a triangular gear chain, and the upper side of the gear chain sleeve gear is meshed with a sleeve bevel gear on the outer side of a screw rod sleeve of the first telescopic mechanism;
each auxiliary toothed chain transmission structure comprises an auxiliary toothed chain gear and an auxiliary sleeve bevel gear; an auxiliary sleeve gear is fixedly connected to the auxiliary toothed chain gear; the auxiliary toothed chain gear is meshed with the triangular toothed chain;
the auxiliary sleeve bevel gears of the two auxiliary toothed chain transmission structures are respectively arranged on the outer sides of the screw rod sleeves of the second telescopic mechanism and the third telescopic mechanism; the auxiliary socket bevel gear of each auxiliary gear train transmission structure meshes with the auxiliary socket gear of each auxiliary gear train transmission structure.
7. A wheel according to any of claims 3 to 6, wherein: when the hinge part of the complete hub is farthest away from the center frame, the cross section of the complete hub is of a circular structure; when the hinge part of the complete hub is closest to the center frame, the cross section of the complete hub is of a Lelo triangular structure.
8. A wheel according to claim 7, wherein: a mandrel is arranged in the center of the center frame; the wheel further comprises a control system; the control system comprises a processor, a first proximity switch and a storage battery, wherein the first proximity switch is arranged at one end of each screw rod, which is close to the mandrel, and the storage battery supplies power to the control system and the motor; the processor is respectively connected with the first proximity switch and the motor; the motor is a wireless motor.
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| CN201910860899.7A CN110654164B (en) | 2019-09-11 | 2019-09-11 | Wheel of vehicle |
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| CN201910860899.7A CN110654164B (en) | 2019-09-11 | 2019-09-11 | Wheel of vehicle |
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| CN110654164A CN110654164A (en) | 2020-01-07 |
| CN110654164B true CN110654164B (en) | 2021-08-24 |
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| CN102895094B (en) * | 2012-10-31 | 2014-11-26 | 西安工业大学 | Adjustable powerless walking aid with four-leg frame |
| US9878576B2 (en) * | 2013-03-15 | 2018-01-30 | X-Sim Llc | Segmented wheel and method and system for controlling a segmented wheel |
| CN108327459B (en) * | 2018-03-28 | 2023-10-31 | 华南理工大学 | Deformation wheel mechanism capable of self-locking |
| CN109624603A (en) * | 2018-11-02 | 2019-04-16 | 定远县中林机械技术有限公司 | A kind of deformed wheel with gear drive transformational structure |
| CN109624601A (en) * | 2018-11-02 | 2019-04-16 | 定远县中林机械技术有限公司 | A kind of deformed wheel with hydraulic interconnection transformational structure |
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