CN116443779A - Folding multi-degree-of-freedom tire quick-change vehicle - Google Patents

Abstract

The invention discloses a folding multi-degree-of-freedom tire quick-change vehicle, which relates to the technical field of special vehicles and comprises a vehicle frame, a traveling system arranged at the bottom of the vehicle frame, a lifting mechanism arranged on the vehicle frame, a traversing mechanism connected with the output end of the lifting mechanism, a rotating mechanism connected with the output end of the traversing mechanism, and a clamping mechanism connected with the output end of the rotating mechanism and used for clamping tires, wherein the traveling system is arranged at the bottom of the vehicle frame; the walking system is arranged on the frame in a turnover way so as to fold or unfold when the walking system is turned to a preset angle position; the lifting mechanism can be arranged on the frame in a turnover manner so as to fold or unfold when the lifting mechanism is turned to a preset angle position. The folding multi-degree-of-freedom tire quick-change vehicle disclosed by the invention can improve the motion freedom degree of the tire-change vehicle, realize the fine adjustment of the tire position in the process of disassembling and changing the tire, further reduce the manual labor load, improve the working efficiency and facilitate storage.

Description

Folding multi-degree-of-freedom tire quick-change vehicle

Technical Field

The invention relates to the technical field of special vehicles, in particular to a foldable multi-degree-of-freedom tire quick-change vehicle.

Background

At present, the tire changing operation mainly takes manual operation as the main part, a jack is adopted to support the vehicle body, then a torque wrench or an air gun tool is operated to disassemble and assemble bolts, a crow bar is used for assisting in separating the tire from an axle, and finally the tire is moved off site by means of a manual or unpowered flat plate small trailer. In the process of installing the tire, compared with the process of disassembling the tire, the tire is more troublesome, and mainly in the assembly process of the tire and the wheel axle, the tire of the trolley needs to be continuously and finely adjusted, and the manual adjustment is adopted, so that the tire replacement can be realized. However, for the tires of special vehicles such as trucks, trucks and the like, the diameter of one tire reaches 1500mm, the lifting capacity reaches 300kg, and if more than 3 persons are not available at this moment, the assembly and disassembly of the tires cannot be completed, and in the process of assembling, adjusting and aligning the heavy tires, potential safety hazards easily occur, time and labor are wasted for operators, the efficiency is low, the physical strength of the operators is consumed, and irreversible damage is easily caused to the bodies of the operators for a long time.

In the prior art, a part of large mining area maintenance factories adopt special vehicles such as mining truck dumpers for operation. The tires of the mining truck are divided into general large tires or ultra-large tires according to different tonnages; for the ultra-large tire, a special tire changing vehicle is used for changing the tire of a wide mining truck dumper, the mining truck special tire changing vehicle adopts a large and medium loader as a chassis, and a special mechanical clamp is additionally arranged to clamp the tire, so that the tire can be combined with the chassis to walk, receive, clamp, transport and install the tire.

However, the conventional tire changing vehicle has a small degree of freedom of movement, and most of the conventional tire changing vehicle is passively adjusted, so that only the function of a forklift can be realized, and the tire position cannot be finely adjusted. In the process of dismounting the tire, a plurality of fine requirements such as the need of accurately aligning the tire with the wheel shaft, the need of accurately aligning the hub mounting hole with the axle bolt and the like are met, the higher active adjustment degree of freedom is required, the traditional tire changing vehicle is difficult to realize, manual intervention is often needed for manual auxiliary adjustment, the labor load of operators is still larger, and the working efficiency is still to be improved. In addition, the tire changing vehicle in the prior art is large in structural volume, can not be folded and stored, needs to occupy a large factory building space when in an unused storage state, and further can be used in a large mine, and has high requirements on use scenes and large limitation of use ranges.

Therefore, how to improve the freedom of movement of the tire changing vehicle, and realize the fine adjustment of the tire position in the process of changing the tire, further reduce the manual labor load, improve the working efficiency and facilitate storage, and is a technical problem faced by the person skilled in the art.

Disclosure of Invention

The invention aims to provide a folding multi-degree-of-freedom tire quick-change vehicle, which can improve the motion freedom degree of the tire-change vehicle, realize the fine adjustment of the tire position in the process of disassembling and changing the tire, further reduce the labor load, improve the working efficiency and facilitate storage.

In order to solve the technical problems, the invention provides a folding multi-degree-of-freedom tire quick-change vehicle which comprises a vehicle frame, a traveling system arranged at the bottom of the vehicle frame, a lifting mechanism arranged on the vehicle frame, a traversing mechanism connected with the output end of the lifting mechanism, a rotating mechanism connected with the output end of the traversing mechanism, and a clamping mechanism connected with the output end of the rotating mechanism and used for clamping tires; the walking system is arranged on the frame in a turnover way so as to fold or unfold when the walking system is turned to a preset angle position; the lifting mechanism can be arranged on the frame in a turnover manner so as to fold or unfold when the lifting mechanism is turned to a preset angle position.

Preferably, the running system comprises a driving wheel arranged at the bottom of the frame, supporting leg beams arranged at two sides of the bottom of the frame, and supporting wheels arranged on the supporting leg beams.

Preferably, the end of the leg beam is rotatably connected with the frame through a rotating member so as to turn the leg beam to fold or unfold.

Preferably, the running system further comprises a control rod which is horizontally rotatably arranged on the frame and an auxiliary wheel which is arranged on the supporting leg beam, one end of the control rod is connected with the driving wheel to control the driving wheel to turn, and the auxiliary wheel is used for assisting the frame to run after the supporting leg beam is turned to a storage state.

Preferably, the lifting mechanism comprises a lifting driving part, a lifting frame, lifting sliding rails and a lifting cross beam, wherein the lifting driving part is vertically arranged at the bottom of the frame, the lifting frame is arranged on the frame in a turnover manner, the lifting sliding rails are arranged on the inner walls of the two sides of the lifting frame, the lifting cross beam is vertically and slidably arranged in the lifting sliding rails, and the output end of the lifting driving part is in rotary connection with the lifting cross beam; the transverse moving mechanism is connected with the lifting cross beam.

Preferably, the lifting mechanism further comprises a turnover supporting rod, one end of the turnover supporting rod is rotatably connected with the top surface of the frame, the other end of the turnover supporting rod is rotatably connected with the top end of the lifting frame, and the bottom end of the lifting frame is rotatably connected with the side edge of the top of the frame; the overturning supporting rod is a telescopic rod.

Preferably, the traversing mechanism comprises sliding sleeves sleeved at two ends of the lifting beam in a sliding manner and traversing rods connected between the sliding sleeves; the rotating mechanism is arranged on the transverse moving rod.

Preferably, the rotating mechanism includes a rotating disk rotatably mounted on the traversing lever; the clamping mechanism is arranged on the rotating disc.

Preferably, the clamping mechanism comprises a triangle plate arranged on the disc surface of the rotating disc, a plane connecting rod rotatably connected to each included angle position of the triangle plate, an axial connecting rod rotatably connected to the outer end of the plane connecting rod, a first clamping jaw rotatably arranged at the tail end of the axial connecting rod and used for clamping the side wall of the tire, a driving gear arranged in the inner cavity of the triangle plate, a driving gear ring arranged in the inner cavity of the triangle plate and meshed with the driving gear, and a transmission connecting rod with one end rotatably connected with the plane connecting rod and the other end connected with the outer edge of the driving gear ring.

Preferably, the clamping mechanism comprises a rectangular plate arranged on the surface of the rotary disk, a fixed pipe arranged on the long side of the rectangular plate, a T-shaped piece axially telescopically inserted in the fixed pipe, an extension rod rotatably connected with one end of the T-shaped piece for folding and accommodating, and a second clamping jaw rotatably arranged at the tail end of the extension rod and used for clamping the side wall of the tire.

The invention provides a folding multi-degree-of-freedom tire quick-change vehicle which mainly comprises a vehicle frame, a traveling system, a lifting mechanism, a traversing mechanism, a rotating mechanism and a clamping mechanism. The frame is a main body structure of the tire changing vehicle and is mainly used for installing and bearing other parts. The traveling system is arranged at the bottom of the frame and is mainly used for realizing the traveling function of the frame and generally comprises plane movement, climbing and descending, steering control, parking control and the like. The lifting mechanism is arranged on the frame, has the degree of freedom of lifting movement, can perform or output vertical lifting movement on the frame, and is mainly used for driving the tire to perform vertical lifting movement so as to adjust the vertical position of the tire. The transverse moving mechanism is arranged on the frame and is connected with the output end of the lifting mechanism, has horizontal transverse (taking the plane size of the frame as a reference) motion freedom degree, can perform or output horizontal transverse motion on the frame, and is mainly used for driving the tire to perform horizontal transverse motion so as to adjust the horizontal transverse position of the tire. The rotating mechanism is arranged on the frame and is connected with the output end of the traversing mechanism, has the degree of freedom of rotating motion, can perform or output (in a vertical plane) rotating motion on the frame, and is mainly used for driving the tire to perform circumferential rotation so as to adjust the angle position of each mounting hole on the hub. The clamping mechanism is arranged on the frame and is connected with the output end of the rotating mechanism, and is mainly used for clamping the tire and fixing the tire, so that the tire is prevented from falling off in the tire changing operation process. Meanwhile, the traveling system and the frame form overturning connection, and the traveling system can be overturned and adjusted so as to realize folding or unfolding of the traveling system on the frame when the traveling system is overturned to a preset angle position; the lifting mechanism is connected with the frame in a turnover way, and can be turned over and adjusted to realize folding or unfolding of the lifting mechanism on the frame when the lifting mechanism is turned over to a preset angle position.

Therefore, after the tire to be replaced or the tire to be mounted is clamped and fixed through the clamping mechanism, the folding multi-degree-of-freedom tire quick-change vehicle provided by the invention realizes the space three-dimensional movement and the rotary movement of the tire through the traveling system, the lifting mechanism, the traversing mechanism and the rotary mechanism respectively, wherein the fine adjustment of the height position of the tire is realized through the lifting mechanism, the fine adjustment of the horizontal transverse position of the tire is realized through the traversing mechanism, the fine adjustment of the angle position of the wheel hub mounting hole is realized through the rotary mechanism, and the accurate alignment requirement between the tire and the axle is met. Meanwhile, after the tire quick-change vehicle finishes the operation, the traveling system and the lifting mechanism can be respectively turned over to specific angle positions, so that the traveling system and the lifting mechanism can be folded and stored on the vehicle frame, the overall structural size and the volume of the tire quick-change vehicle are reduced, and the requirement of the tire quick-change vehicle on the storage space of a factory building is further reduced.

Compared with the prior art, the folding multi-degree-of-freedom tire quick-change vehicle provided by the invention can improve the degree of freedom of movement of the tire-change vehicle, realize fine adjustment of the tire position in the process of disassembling and changing the tire, further reduce the labor load, improve the working efficiency and facilitate storage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an operating state of a first embodiment according to the present invention.

Fig. 2 is a schematic view showing a storage state structure of a first embodiment of the present invention.

Fig. 3 is a schematic view of the clamping mechanism shown in fig. 2 in a folded state.

Fig. 4 is a schematic view of the clamping mechanism shown in fig. 2 in an expanded state.

Fig. 5 is a schematic structural diagram of an operating state of a second embodiment according to the present invention.

Fig. 6 is a schematic view showing a storage state structure of a second embodiment of the present invention.

Fig. 7 is a schematic view of an application scenario of a tire quick-change vehicle.

Wherein, in fig. 1-7:

the device comprises a frame-1, a traveling system-2, a lifting mechanism-3, a traversing mechanism-4, a rotating mechanism-5 and a clamping mechanism-6;

a first mounting hole-11, a second mounting hole-12;

the device comprises a driving wheel-21, a supporting leg beam-22, a supporting wheel-23, a rotating piece-24, a control rod-25 and an auxiliary wheel-26;

a lifting driving part-31, a lifting frame-32, a lifting sliding rail-33, a lifting cross beam-34 and a turnover supporting rod-35;

a sliding sleeve-41, a traversing rod-42;

triangle-61 a, plane connecting rod-62 a, axial connecting rod-63 a, first clamping jaw-64 a, driving gear-65 a, driving gear ring-66 a, and transmission connecting rod-67 a;

a rectangular plate-61 b, a fixed tube-62 b, a T-shaped member-63 b, an extension rod-64 b, and a second jaw-65 b.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an operating state of a first embodiment of the present invention, and fig. 2 is a schematic structural diagram of a storage state of the first embodiment of the present invention.

In one specific embodiment provided by the invention, the foldable multi-degree-of-freedom tire quick-change vehicle mainly comprises a vehicle frame 1, a traveling system 2, a lifting mechanism 3, a traversing mechanism 4, a rotating mechanism 5 and a clamping mechanism 6.

The frame 1 is a main body structure of the tire changing vehicle and is mainly used for installing and bearing other parts.

The traveling system 2 is disposed at a bottom position of the frame 1, and is mainly used for realizing a traveling function of the frame 1, and generally comprises plane movement, climbing and descending, steering control, parking control and the like.

The lifting mechanism 3 is arranged on the frame 1, has the freedom of lifting movement, can perform or output vertical lifting movement on the frame 1, and is mainly used for driving the tire to perform vertical lifting movement so as to adjust the vertical position of the tire.

The traversing mechanism 4 is arranged on the frame 1 and is connected with the output end of the lifting mechanism 3, has a horizontal transverse (taking the plane size of the frame 1 as a reference) motion degree of freedom, can perform or output horizontal transverse motion on the frame 1, and is mainly used for driving the tire to perform horizontal transverse motion so as to adjust the horizontal transverse position of the tire.

The rotating mechanism 5 is arranged on the frame 1 and is connected with the output end of the traversing mechanism 4, has the degree of freedom of rotating motion, can perform or output (in a vertical plane) rotating motion on the frame 1, and is mainly used for driving the tire to perform circumferential rotation so as to adjust the angle position of each mounting hole on the hub.

The clamping mechanism 6 is arranged on the frame 1 and is connected with the output end of the rotating mechanism 5, and is mainly used for clamping the tire and fixing the tire, so that the tire is prevented from falling off in the tire changing operation process.

Meanwhile, the traveling system 2 and the frame 1 form overturning connection, and the traveling system 2 can be overturned and adjusted so as to realize folding or unfolding of the traveling system 2 on the frame 1 when the traveling system 2 is overturned to a preset angle position; the lifting mechanism 3 is connected with the frame 1 in a turnover manner, and the lifting mechanism 3 can be turned and adjusted to realize folding or unfolding of the lifting mechanism 3 on the frame 1 when the lifting mechanism 3 is turned to a preset angle position.

In this way, after the tire to be replaced or the tire to be mounted is clamped and fixed through the clamping mechanism 6, the folding multi-degree-of-freedom tire quick-change vehicle provided by the embodiment realizes the space three-dimensional movement and the rotary movement of the tire through the traveling system 2, the lifting mechanism 3, the traversing mechanism 4 and the rotary mechanism 5 respectively, wherein the fine adjustment of the height position of the tire is realized through the lifting mechanism 3, the fine adjustment of the horizontal transverse position of the tire is realized through the traversing mechanism 4, the fine adjustment of the angle position of the hub mounting hole is realized through the rotary mechanism 5, and the accurate alignment requirement between the tire and the axle is met. Meanwhile, after the tire quick-change vehicle operation is finished, the traveling system 2 and the lifting mechanism 3 can be respectively turned to specific angle positions, so that the tire quick-change vehicle can be folded and stored on the frame 1, the overall structural size and the volume of the tire quick-change vehicle are reduced, and the requirement of the tire quick-change vehicle on the storage space of a factory building is further reduced.

Compared with the prior art, the folding multi-degree-of-freedom tire quick-change vehicle provided by the embodiment can improve the freedom of movement of the tire-change vehicle, realize fine adjustment of the tire position in the process of disassembling and changing the tire, further reduce the labor load, improve the working efficiency and facilitate storage.

As for the horizontal longitudinal position of the tire, since the direction is usually the pulling-out direction or inserting-in direction of the tire at the time of assembling and disassembling, that is, the axial direction of the axle is taken as a reference, it is not necessary to finely adjust the horizontal longitudinal position of the tire by the tire truck, and only the tire is required to be locked at a preset position on the axle by a fastener at the time of mounting the tire.

In an alternative embodiment with respect to the running system 2, the running system 2 mainly comprises a driving wheel 21, a leg beam 22 and a thrust wheel 23. The driving wheel 21 is disposed at a bottom position of the frame 1, typically in a bottom center region of the frame 1, and has power to be capable of actively rotating and steering, and is typically driven by an operator through a joystick 25 mounted on the frame 1 to drive the driving wheel 21 forward, backward, steering, parking, etc. The leg beams 22 are provided at both bottom side positions of the frame 1, extend generally in the horizontal longitudinal direction, and extend to both front side positions of the frame 1. The thrust wheel 23 is disposed on the leg beam 22, and is generally disposed at a front end position of the leg beam 22, and is mainly used for bearing the supporting leg and the frame 1. So arranged, the thrust wheels 23 on both sides and the driving wheel 21 in the middle form a three-wheel walking structure.

In addition, in order to realize the folding and storage functions of the running system 2 and reduce the occupation of space of the tire changing vehicle in the storage state, in this embodiment, the rear end portion of the leg beam 22 is provided with a rotating member 24, and is connected to the frame 1 through the rotating member 24, so that a turnover connection is formed between the leg beam 22 and the frame 1. In general, the rotating member 24 may be a rotating pin, a pin shaft, or the like, and a first mounting hole 11 is formed in a middle portion of a side wall of the frame 1, and a second mounting hole 12 is formed in a bottom portion of a side wall of the frame 1, so that the rotating member 24 is inserted into the first mounting hole 11 in a working state, so that the leg beam 22 is kept in a horizontal state and is supported by the thrust wheel 23; in the storage state, the rotation is to be inserted into the second mounting hole 12 so that the leg beam 22 is vertically turned over from the horizontal state to the vertically folded state, thereby reducing the length direction dimension of the tire changing vehicle, and facilitating storage and placement.

Further, in order to further realize the folding degree of the tire quick-change vehicle and reduce the size and volume of the storage state, in this embodiment, the operating lever 25 is horizontally rotatably connected with the top surface of the frame 1, for example, by a pin shaft or other member, so that the horizontal rotation movement can be performed, and the inner end of the operating lever 25 is connected with the driving wheel 21, while the outer end of the operating lever 25 is provided for the manual operation of an operator. So configured, in the operating state, the lever 25 extends generally in the horizontal longitudinal direction, and in the storage state, the lever 25 can be rotated horizontally by 90 ° so as to extend in the horizontal lateral direction (width direction of the frame 1) and be accommodated on the top surface of the frame 1, folding is achieved, and the length-direction dimension of the tire quick-change vehicle is reduced.

Furthermore, in order to facilitate the in-and-out operation of the tire quick-change truck in the stored state, the present embodiment is also provided with auxiliary wheels 26 at the rear end positions of the leg beams 22. When the rotating piece 24 on the supporting leg beam 22 is matched with the second mounting hole 12 on the frame 1 and is turned 90 degrees to a vertical state, the auxiliary wheel 26 contacts the ground and is flush with the bottom surface of the driving wheel 21, so that the tire quick-change vehicle can stably enter and leave the bin.

In an alternative embodiment with respect to the lifting mechanism 3, the lifting mechanism 3 mainly comprises a lifting drive member 31, a lifting frame 32, a lifting slide rail 33 and a lifting cross member 34. The lifting driving member 31 is vertically disposed at the bottom of the frame 1, and may be a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, a driving motor, or the like, and may output a vertical lifting motion through an output end (e.g., a piston rod, a telescopic rod, or the like) thereof. The lifting frame 32 is disposed on the vehicle body, and is generally disposed at a top portion of the vehicle body, and is generally in a rectangular frame structure, and inner walls of two side edges of the lifting frame 32 form lifting slide rails 33. The two ends of the lifting beam 34 are respectively arranged in the lifting slide rails 33 on two sides and keep a horizontal posture, and can slide along the lifting slide rails 33, and the lifting beam 34 is connected with the output end of the lifting driving component 31 and forms a rotation connection. So arranged, when the output end of the lifting driving part 31 moves vertically upwards, the lifting cross beam 34 is driven to synchronously move vertically upwards along the lifting slide rail 33 of the lifting frame 32; and vice versa.

Generally, a plurality of lifting beams 34 may be provided at the same time, such as 2 or more. Taking the example that 2 lifting cross beams 34 are arranged, the 2 lifting cross beams 34 are arranged in the lifting slide rails 33 on two sides one by one, the two lifting cross beams 34 are connected into a whole through a retainer and other components, and the output end of the lifting driving component 31 is usually connected with the lifting cross beam 34 positioned below only, so that the synchronous movement and the relative position relationship of the 2 lifting cross beams 34 are ensured through the retainer.

In order to facilitate the overturning movement of the lifting mechanism 3 on the frame 1, and further realize the folding and unfolding movement of the lifting mechanism 3, an overturning supporting rod 35 is additionally arranged in the embodiment. The overturning supporting rod 35 is specifically a telescopic rod with an axial length capable of being stretched, such as a spring rod, a damping rod and the like, one end of the overturning supporting rod 35 is rotatably connected with the top surface of the frame 1, and the other end of the overturning supporting rod 35 is rotatably connected with the top of the lifting frame 32, and the overturning supporting rod is generally connected with the top surface of the frame 1 through a hinged support. At the same time, the bottom of the lifting frame 32 is rotatably connected with the side edge of the top of the frame 1, and can be connected through a hinged support. So set up, when the operation workman pulls the top of crane 32 and overturns, can make the upset bracing piece 35 produce telescopic motion when carrying out the pivoted to with the crane 32 from the vertical gesture of operation state to the horizontal gesture of depositing the state, thereby reduce the direction of height size of tire quick change truck.

In an alternative embodiment with respect to the traversing mechanism 4, the traversing mechanism 4 basically includes a sliding sleeve 41 and a traversing rod 42. The sliding sleeve 41 is sleeved on the lifting beam 34, and can axially slide on the lifting beam 34, namely horizontally and transversely move. Generally, the sliding sleeves 41 are simultaneously sleeved at two axial ends of the lifting beam 34, and the sliding sleeves 41 at the two ends are connected into a whole through the transverse moving rod 42. In addition, since two lifting beams 34 are generally provided, two vertically adjacent slide bushes 41 are integrally connected to each other by means of a connecting plate or the like, and both ends of the traverse bar 42 are connected to the connecting plates at both axial end positions. So configured, the operator can adjust the position of the traversing lever 42 synchronously by adjusting the sliding position of the sliding sleeve 41 on the lifting beam 34, thereby realizing fine adjustment of the position of the tire in the horizontal transverse direction.

In an alternative embodiment with respect to the rotation mechanism 5, the rotation mechanism 5 mainly comprises a rotating disc. The rotating disk is rotatably mounted on the traverse lever 42 while maintaining the degree of freedom of rotational movement. By means of the arrangement, an operator can conveniently drive the tire to rotate through pulling or rotating the rotary disc, and then the circumferential angle position (relative to an axle) of each mounting hole on the hub is finely adjusted.

As shown in fig. 3 and 4, fig. 3 is a schematic structural view of the clamping mechanism 6 shown in fig. 2 in a folded state, and fig. 4 is a schematic structural view of the clamping mechanism 6 shown in fig. 2 in an unfolded state.

In an alternative embodiment of the clamping mechanism 6, the clamping mechanism 6 is embodied as a three-jaw centering clamping structure, and mainly includes a triangle 61a, a planar link 62a, an axial link 63a, a first jaw 64a, a drive gear 65a, a drive gear ring 66a, and a transmission link 67a.

The triangle 61a is installed on the disk surface of the rotary disk, and has a triangle or curved triangle structure as a whole. The plane connecting rods 62a are simultaneously provided with 3, are respectively connected at three corner positions of the triangular plate 61a, and form rotational connection in the same plane with the triangular plate 61a, and each plane connecting rod 62a can synchronously perform rotational movement relative to the triangular plate 61a so as to adjust the clamping size of the clamping mechanism 6 to adapt to tires with different diameters. The axial links 63a are connected at the outer ends of the respective flat links 62a and form a tilting connection with the flat links 62a, and are capable of performing a tilting movement with respect to the flat links 62a to effect switching of the folded or unfolded state, mainly for pressing the outer circumferential surface of the tire in the unfolded state (extending in the horizontal longitudinal direction). The first clamping jaw 64a is disposed at a distal end position of the axial link 63a and is capable of performing a rotational movement mainly for clamping an outer sidewall of a tire by rotating to a specific angle after the axial link 63a presses an outer circumferential surface of the tire, thereby achieving a clamping effect.

The driving gear 65a and the driving gear ring 66a are both installed in the inner cavity of the triangle 61a, and the driving gear ring 66a is an inner gear ring, and forms an inner and outer engaged transmission with the driving gear 65a, and the motion state of the driving gear 65a can be electrically controlled by the control lever 25 to drive the driving gear ring 66a to perform circumferential rotation motion. One end of the transmission connecting rod 67a is in rotary connection with the plane connecting rod 62a, the other end of the transmission connecting rod 67a is connected with the outer edge of the driving gear ring 66a, and the transmission connecting rod is mainly used for transmitting the circumferential rotary motion of the driving gear ring 66a to the plane connecting rod 62a so as to drive the plane connecting rod 62a to perform plane rotary motion relative to the triangle plate 61 a.

In this way, when tires with different sizes are faced, only the driving gear 65a and the driving gear ring 66a are meshed to drive the 3 plane connecting rods 62a to synchronously rotate, so that the 3 plane connecting rods 62a can realize circumferential expansion or circumferential rolling effect, the distance between the centers of the 3 axial connecting rods 63a connected with the 3 plane connecting rods 62a and the triangle 61a is changed, the circumferential surrounding size of the centers of the three claws is changed, and the tire with different diameters can be adapted.

Meanwhile, in the storage state, on one hand, the 3 plane connecting rods 62a can be rotated to a state of being curled to the minimum in the circumferential direction through the meshing of the driving gear 65a and the driving gear ring 66a, namely, the circumferential surrounding size of the three-jaw centering reaches the minimum value; on the other hand, the axial link 63a may also be turned over to maintain the overlapping state with the planar link 62a by the turning movement of the axial link 63a on the planar link 62a to reduce the overall size as much as possible.

As shown in fig. 5, 6 and 7, fig. 5 is a schematic structural diagram of a working state of a second embodiment provided by the present invention, fig. 6 is a schematic structural diagram of a storage state of the second embodiment provided by the present invention, and fig. 7 is a schematic view of an application scenario of a tire quick-change vehicle.

In an alternative embodiment with respect to the clamping mechanism 6, the clamping mechanism 6 basically includes a rectangular plate 61b, a stationary tube 62b, a T-piece 63b, an extension rod 64b and a second clamping jaw 65b.

Wherein the rectangular plate 61b is mounted on the disk surface of the rotary disk and has a rectangular shape. The fixing pipes 62b are provided at the same time in 2 numbers and are arranged along both long sides of the rectangular plate 61b, respectively. The T-shaped member 63b is T-shaped and includes two portions, a cross bar and a side bar. The longitudinal rod is inserted into the pipe orifice of the fixed pipe 62b and forms a sliding fit, and can axially slide in the fixed pipe 62 b. One end of the cross bar is rotatably connected to an end of the extension bar 64b to switch between the folded state and the unfolded state by the turning movement of the extension bar 64 b. Generally, the extension rod 64b is folded when flipped over to remain overlapped with the fixed tube 62b, and unfolded when the extension rod 64b is flipped over 90 ° to extend toward the horizontal longitudinal direction. When each of the extension rods 64b is turned to the extended state, it is mainly used to press the outer circumferential surface of the tire. The second clamping jaw 65b is disposed at the end position of the extension rod 64b and is rotatable, and is mainly used for clamping the outer sidewall of the tire by rotating to a specific angle after the axial connecting rod 63a presses the outer circumferential surface of the tire, so as to achieve a clamping effect.

Thus, when tires of different sizes are faced, the distance between the 4 extension rods 64b can be adjusted only by sliding and adjusting the telescopic length of the T-shaped piece 63b in the fixed tube 62b, and then the co-circle size of the 4 extension rods 64b can be adjusted to adapt to tires of different diameters.

Meanwhile, in the storage state, the telescopic length of the T-shaped member 63b can be reduced to the minimum state, and the extension rod 64b can be turned over to keep the overlapping state with the fixed tube 62b by the turning movement of the extension rod 64b on the T-shaped member 63b, so that the whole size is reduced as much as possible.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The foldable multi-degree-of-freedom tire quick-change vehicle is characterized by comprising a vehicle frame (1), a traveling system (2) arranged at the bottom of the vehicle frame (1), a lifting mechanism (3) arranged on the vehicle frame (1), a traversing mechanism (4) connected with the output end of the lifting mechanism (3), a rotating mechanism (5) connected with the output end of the traversing mechanism (4) and a clamping mechanism (6) connected with the output end of the rotating mechanism (5) and used for clamping a tire; the walking system (2) is arranged on the frame (1) in a turnover manner so as to fold or unfold when the walking system is turned to a preset angle position; the lifting mechanism (3) can be arranged on the frame (1) in a turnover manner so as to fold or unfold when the lifting mechanism is turned to a preset angle position.

2. The folding multi-degree of freedom tire quick change vehicle of claim 1 wherein the running system (2) comprises a drive wheel (21) disposed at the bottom of the frame (1), leg beams (22) disposed at both sides of the bottom of the frame (1), and thrust wheels (23) disposed on the leg beams (22).

3. A folded multi-degree of freedom tire quick change vehicle according to claim 2 wherein the ends of the leg beams (22) are rotatably connected to the frame (1) by a swivel (24) to flip the leg beams (22) for folding or unfolding.

4. A folding multi-degree of freedom tyre quick change vehicle according to claim 3 characterized in that the running system (2) further comprises a lever (25) horizontally rotatably arranged on the frame (1), an auxiliary wheel (26) arranged on the leg beam (22), one end of the lever (25) being connected to the driving wheel (21) to control the steering of the driving wheel (21), the auxiliary wheel (26) being used to assist the frame (1) to run after the leg beam (22) is turned to the storage state.

5. The folding multi-degree-of-freedom tire quick-change vehicle according to claim 1, wherein the lifting mechanism (3) comprises a lifting driving component (31) vertically arranged at the bottom of the vehicle frame (1), a lifting frame (32) which is arranged on the vehicle frame (1) in a turnover manner, lifting sliding rails (33) arranged on the inner walls of two sides of the lifting frame (31), and a lifting cross beam (34) which is arranged in the lifting sliding rails (33) in a vertically sliding manner, wherein the output end of the lifting driving component (31) is in rotary connection with the lifting cross beam (34); the traversing mechanism (4) is connected with the lifting cross beam (34).

6. The folding multi-degree of freedom tire quick change vehicle of claim 5 wherein the lifting mechanism (3) further comprises a turnover support rod (35), one end of the turnover support rod (35) is rotatably connected with the top surface of the vehicle frame (1), the other end of the turnover support rod (35) is rotatably connected with the top end of the lifting frame (32), and the bottom end of the lifting frame (32) is rotatably connected with the top side edge of the vehicle frame (1); the overturning supporting rod (35) is a telescopic rod.

7. The folding multi-degree of freedom tire quick change vehicle of claim 5 wherein the traversing mechanism (4) comprises sliding sleeves (41) slidably sleeved at two ends of the lifting beam (34), traversing rods (42) connected between the sliding sleeves (41); the rotating mechanism (5) is arranged on the traversing rod (42).

8. The folding multi-degree of freedom tire quick change vehicle of claim 7 wherein the rotation mechanism (5) includes a rotating disc rotatably mounted on the traversing rod (42); the clamping mechanism (6) is arranged on the rotating disc.

9. The folding multi-degree of freedom tire quick change vehicle according to claim 8, wherein the clamping mechanism (6) comprises a triangle (61 a) mounted on a disc surface of the rotating disc, a plane link (62 a) rotatably connected to each included angle position of the triangle (61 a), an axial link (63 a) rotatably connected to an outer end of the plane link (62 a), a first clamping jaw (64 a) rotatably provided at an end of the axial link (63 a) for clamping a tire sidewall, a driving gear (65 a) mounted in an inner cavity of the triangle (61 a), a driving gear ring (66 a) mounted in an inner cavity of the triangle (61 a) and meshed with the driving gear (65 a), and a transmission link (67 a) having one end rotatably connected to the plane link (62 a) and the other end connected to an outer edge of the driving gear ring (66 a).

10. The folding multi-degree of freedom tire quick change vehicle of claim 8 wherein the clamping mechanism (6) comprises a rectangular plate (61 b) mounted on a disk surface of the rotary disk, a fixed tube (62 b) provided on a long side of the rectangular plate (61 b), a T-shaped member (63 b) axially telescopically inserted into the fixed tube (62 b), an extension rod (64 b) rotatably connected to one end of the T-shaped member (63 b) to be folded and accommodated, and a second clamping jaw (65 b) rotatably provided on an end of the extension rod (64 b) and used for clamping a tire sidewall.