Alternating load-bearing wheel group structure and transport equipment

Abstract

The present invention discloses an alternating load-bearing wheel group structure and a carrying equipment, which solves the technical problems that the carrying wheels of existing magnetic levitation vehicles cannot realize alternating load-bearing and driving, the magnetic levitation vehicle cannot perform automatic track laying, and the application cost is high. The present invention includes a plurality of carrying wheel assemblies and an alternating support system, each carrying wheel assembly includes at least two carrying wheels, a driving assembly is provided on the carrying wheel, and the two carrying wheel assemblies are alternately driven or load-bearing, and the alternating support system includes a first support assembly and a second support assembly arranged in coordination, the first support assembly is connected to the carrying base through a connecting arm, and the second support assembly is arranged on the carrying wheel. The present invention has the advantages of carrying wheels being divided into groups to perform alternating load-bearing and driving, and realizing automatic track laying.

Description

Technical Field

[0001] The present invention relates to the technical field of transport equipment, and in particular to an alternating load-bearing wheel group structure and transport equipment. Background Art

[0002] Traditional maglev vehicles rely on maglev carrier wheels, motors, and maglev tracks as a power system. When the maglev carrier wheels rotate relative to the induction track, an induced current is generated. According to the principle of electromagnetic induction and Lenz's law, the induced magnetic field generated by the induced current and the original magnetic field generate an electromagnetic force that hinders this relative motion. In the normal direction, it manifests as a suspension force to suspend the vehicle, and in the tangential direction, it manifests as a driving force to achieve the vehicle's travel. At the same time, in recent years, as the contradiction between energy demand and environmental resources has become increasingly prominent, electric-drive vehicles have gradually become a hot topic in the field of road transportation due to their own environmental protection and energy-saving advantages. Against this background, some scholars have proposed a variety of maglev vehicle driving schemes, such as the prior art CN202010644600.7, the suspension method of which is electromagnetic suspension, relying on the rotation of the maglev carrier wheels relative to the induction track to generate a suspension force to suspend and control the vehicle. This suspension scheme has the following shortcomings: First, the vehicle must be on the induction lane to achieve suspension driving, which will greatly increase the manufacturing cost of the magnetic levitation car and limit the use scenarios; second, the vector superposition effect of the longitudinal force after the front and rear wheel speeds are adjusted to achieve braking and driving (in the suspension state), which is difficult to control; third, the dynamic decoupling of the three directions of longitudinal, transverse and vertical is not achieved, and the maneuverability and stability of the vehicle are insufficient during the movement. The carrier wheels in this patent are only suspended by the permanent magnets installed on the carrier wheels and the induction rails installed on the track on the ground. The carrier wheels on both sides need to be suspended and driven at the same time, and it is impossible to alternate between suspension and driving, and it is impossible to complete self-tracking operation.

[0003] Therefore, the present invention proposes an alternating load-bearing wheel set structure and a transport equipment with a switchable load-bearing and transport wheel set structure to overcome the problems existing in the prior art. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the carrier wheels of the existing magnetic levitation vehicle cannot realize the alternation of suspension and driving, the magnetic levitation vehicle cannot automatically lay tracks, and the application cost is high.

[0005] The present invention is achieved through the following technical solutions:

[0006] An alternating load-bearing wheel group structure comprises: a plurality of carrier wheel assemblies and an alternating support system,

[0007] Each carrier wheel assembly includes at least one carrier wheel, the carrier wheel is connected to the carrier base, a carrier wheel driving device is provided on the carrier wheel, and multiple carrier wheel assemblies are alternately driven or load-bearing, and the alternate support system includes a first support assembly and a second support assembly arranged in coordination, the first support assembly is connected to the carrier base through a connecting arm, the second support assembly is arranged on the carrier wheel, and the second support assembly 9 can produce intermittent support with the first support assembly as the carrier wheel rotates, and the alternate load-bearing of different carrier wheel assemblies is adjusted by controlling the change in the force of the first support assembly and the second support assembly. When at least one of the carrier wheel assemblies is load-bearing under the action of the alternate support system, the other carrier wheel assemblies are not load-bearing and move under the drive of the carrier wheel driving device.

[0008] Preferably, multiple carrying assemblies are connected to at least two carrying bases, and at least one carrying wheel assembly is arranged under each carrying base. When the carrying wheel assembly corresponding to the carrying base bears load, the carrying wheel assembly corresponding to the other carrying base drives the carrying base to lay tracks along the running direction.

[0009] Preferably, each carrier wheel assembly includes at least two carrier wheels, which facilitates maintaining stability.

[0010] When the carrying wheel of the carrying wheel assembly is load-bearing, the second supporting assembly of the carrying wheel assembly interacts with the first supporting assembly. When the carrying wheel of the carrying wheel assembly is in a driving state, the second supporting assembly of the group is staggered with the first supporting assembly, and the suspension force between the two is weakened or disappears, thereby realizing the switching of different carrying wheel assemblies between load-bearing and track laying. When driven, it can drive the upper carrying base forward to lay tracks, and the other carrying wheel assemblies bear the weight. When one or more of the carrying wheel assemblies are load-bearing, the remaining carrying wheel assemblies are driven to move, and so on. The carrying wheel group structure can drive the carrying base connected to it to realize self-track laying operation, and because the driven carrying wheel assembly does not bear load, the driving energy consumption is lower and the efficiency is higher.

[0011] The alternating support system is disposed on at least one side of each of the carrier wheels, and the first support assembly is disposed above the carrier wheel corresponding to the second support assembly.

[0012] When the second supporting assembly is arranged on only one side, a counterweight is arranged on the other side of the carrying wheel, so that the stability of the carrying wheel can be ensured.

[0013] Another preferred solution is to set a second support assembly of the same structure on the other side of the carrier wheel, and set a first support assembly at a position above the second support assembly. This can ensure that the center of gravity of the entire carrier wheel is balanced, and the vertical support force is relatively balanced, so that the operation or load-bearing of the carrier wheel is more stable.

[0014] The present invention preferably provides an alternating load-bearing wheel group structure, wherein the first support assembly and the second support assembly are designed in cooperation to form a magnetic levitation system, wherein the first support assembly is a superconducting magnet or an electromagnet, and the second support assembly is a permanent magnet, or the first support assembly is a permanent magnet and the second support assembly is a superconducting magnet or an electromagnet, or the first support assembly and the second support assembly are both permanent magnets, and the alternating load-bearing of the carrier wheel assembly is achieved by generating a changing magnetic force between the first support assembly and the second support assembly. Preferably, the first support assembly is a superconducting magnet and the second support assembly is a permanent magnet, the superconducting magnet is arranged on the carrier base, and the permanent magnet is arranged on the carrier wheel, which is beneficial to protecting the superconducting magnet.

[0015] In addition, the first supporting assembly and the second supporting assembly may both be permanent magnets. When the two permanent magnets gradually face each other, a gradually increasing repulsive force will be generated to press the carrying wheel downward to make it bear the weight. As the two permanent magnets gradually stagger, the magnetic force decreases or disappears.

[0016] The present invention preferably adopts an alternating load-bearing wheel group structure. When the first support assembly and the second support assembly constitute a magnetic suspension system, the inner arc surfaces of the first support assembly and the second support assembly are both oriented toward the center of the carrier wheel, and at least one second support assembly is arranged on one side of each carrier wheel.

[0017] The first supporting assembly and the second supporting assembly form concentric arcs, so that the magnetic force between the two remains constant.

[0018] Furthermore, the first support assemblies of the carrying wheel assemblies in different working states are all located at the same position above the corresponding carrying wheel, and the positions of the second support assemblies are complementary, that is, when the first support assembly and the second support assembly of the track-laying carrying wheel assembly are staggered, the first support assembly and the second support assembly of the load-bearing carrying wheel assembly are relative.

[0019] The present invention preferably adopts an alternating load-bearing wheel group structure, wherein the outer arc surface of the first support component faces the center of the carrying wheel, and the second support component is configured as an arc structure with the arc surface facing the center of the carrying wheel. At least one second support component is configured on one side of each carrying wheel, and preferably one is configured. It is preferred that the repulsive force generated between the second support component and the first support component can overcome the weight of the carrier.

[0020] It should be noted that the second supporting assembly can also be configured as a planar structure or a structure of other shapes.

[0021] The present invention preferably adopts an alternating load-bearing wheel group structure. When the first support assembly and the second support assembly constitute a magnetic suspension system, the second support assembly includes a hollow cylindrical magnet structure enclosed by 360° and the inner arc surface faces the center of the carrier wheel. A section of the outer arc surface of the hollow cylindrical magnet structure is provided with a magnet protrusion facing away from the center of the carrier wheel. When the carrier wheel rotates until the protrusion is opposite to the first support assembly, a maximum repulsive force is generated to press the carrier wheel downward, and the carrier wheel bears most of the weight of the carrier and the carrier base. As the carrier wheel driving device drives the carrier wheel to rotate further, the protrusion of the second support assembly gradually staggers with the position of the first support assembly. When the positions of the two are completely staggered, the distance between the hollow cylindrical magnet structure and the first support assembly increases and there is still some repulsive force between the two, and the carrier wheel still bears a small part of the weight of the carrier base.

[0022] Preferably, the protrusion is in an arc-shaped structure, and its outer arc surface faces away from the center of the carrier wheel, so as to achieve more flexible load-bearing switching and improve the running balance.

[0023] Preferably, the second support assembly comprises a plurality of arc structures arranged at intervals, and the plurality of arc structures of the track-laying and load-bearing transport wheel assemblies are staggered, wherein the magnetic force generated between the second support assembly and the first support assembly of each arc structure is preferably able to overcome the weight of the transport vehicle.

[0024] Preferably, the second support assembly is composed of at least two convex arc segments and at least two concave arc segments, wherein each convex arc segment is connected with two concave arc segments to form a whole, and the convex arc segment and the first support assembly are concentric arcs, so that the carrying wheel can switch smoothly between the load-bearing and track-laying states.

[0025] Preferably, the design principle of the concave arc segment is: from the time when the concave arc segment and the first support component are opposite to each other (that is, the distance between the two is closest) until the distance between the concave arc segment and the first support component is the farthest, the suspension force between them gradually changes from the maximum to the minimum, and then the suspension force gradually increases from the minimum to the maximum.

[0026] Preferably, the first support assembly and the second support assembly are both mechanical support members. When the second support assembly abuts against the first support assembly, the second support assembly supports the first support assembly upward to achieve load-bearing for the carrying base. When the second support assembly is offset from the first support assembly, the second support assembly disengages from supporting the first support assembly, and the load-bearing capacity of the carrying wheel assembly is reduced or eliminated.

[0027] In order to ensure the stability of the carrying wheel operation, the carrying wheel is connected to the carrying base through a vibration reduction support system, the vibration reduction support system is located below the connecting arm, and a shock absorber is arranged on the vibration reduction support system. The present invention improves the stability of the carrier under various road conditions by setting up the vibration reduction support system.

[0028] The vibration reduction support system of the present invention can achieve a vibration reduction effect. When encountering an uneven road surface, the carrier wheel is allowed to move up and down independently of other carrier wheels, thereby effectively reducing the impact of road surface fluctuations on the carrier and providing better stability.

[0029] When the first support assembly and the second support assembly form a magnetic suspension system, in order to prevent the first support assembly and the second support assembly from colliding when the carrier wheel fluctuates up and down, a limit assembly is provided on the shock absorber. In addition, the closest distance between the connecting arm and the tire of the carrier wheel can be set to be smaller than the minimum distance between the first support assembly and the second support assembly. In this way, when the carrier wheel fluctuates up and down, it is ensured that the tire collides with the connecting arm first, and the first support assembly and the second support assembly will not collide and damage the magnet.

[0030] In order to better realize the driving of the carrier wheel, the present invention provides a hub motor or a wheel-side motor inside the carrier wheel. The direct-drive hub motor or wheel-side motor directly connects the motor to the carrier wheel, omitting mechanical components such as a reducer, and has the advantage of high driving efficiency.

[0031] A carrier equipment comprises: a carrier and the above-mentioned wheel set structure, wherein the carrier is located above all carrier bases, and when part of the carrier wheel assemblies of the carrier wheel set structure bear loads, the other part of the carrier wheel assemblies drive the carrier base to lay tracks. The two carrier wheel assemblies alternate between bearing loads and laying tracks.

[0032] The carrier equipment also includes a carrier, a carrier base, a support assembly, and a carrier driving device, wherein the carrier driving device is arranged on the carrier and / or the carrier base, and is used to drive the carrier to move; the carrier base is located below the carrier; the carrier base includes a carrier supporting portion and a carrier wheel connecting portion that are connected to each other, the support assembly is arranged between the carrier supporting portion and the carrier, and is used to support the carrier and ensure relative movement between the carrier and the carrier base, and the carrier wheel connecting portion is provided with the carrier wheel assembly, and the carrier wheel assembly includes at least one carrier wheel.

[0033] The carrier wheel driving device arranged on the carrier wheel of the present invention can drive the carrier wheel to move and thus drive the corresponding carrier base to move. The vertical magnetic force generated by the alternating support system between the carrier wheel and the carrier base on the non-driven carrier wheel group is used to support the weight of the carrier base and the carrier. The support assembly between the carrier and the carrier base is used to support the carrier and the carrier base. The carrier driving device is used to realize the longitudinal propulsion of the carrier, thereby realizing decoupling control in different directions.

[0034] Preferably, the carrier driving device is a linear motor, which is based on the principle of minimizing magnetic resistance, so that the magnetic flux tends to form a closed loop along the path with the smallest magnetic resistance, ultimately achieving stable driving of the carrier equipment in the longitudinal direction.

[0035] Preferably, when the first support assembly and the second support assembly form a magnetic levitation system, the second support assembly includes a hollow cylindrical magnet structure enclosed in 360° and the inner arc surface faces the center of the carrier wheel, and a section of the outer arc surface of the hollow cylindrical magnet structure is provided with a magnet protrusion facing away from the center of the carrier wheel. When the carrier wheel rotates until the protrusion is opposite to the first support assembly, a maximum repulsive force is generated to press the carrier wheel downward, and the carrier wheel bears most of the weight of the carrier and the carrier base. As the carrier wheel driving device drives the carrier wheel to rotate further, the position of the protrusion of the second support assembly is gradually staggered from the first support assembly. When the positions of the two are completely staggered, the hollow cylindrical magnet The distance between the structure and the first supporting assembly increases and there is still some repulsive force between the two, and the carrier wheel still bears a small part of the weight of the carrier and the carrier base; as the carrier wheel continues to rotate, the repulsive force causes the magnetic levitation supporting assembly between the carrier and the carrier base to continue to have some magnetic force, and under the action of this part of the magnetic force, the movement of the carrier base will drive the carrier to move together, and when the magnetic force is sufficient to drive the carrier to move, there is no need to set up a separate carrier driving device or not start the carrier device, and when the magnetic force is insufficient to drive the carrier to move, a separate carrier driving device can be set up or the carrier device can be started to enhance the force between the two, thereby driving the carrier to move.

[0036] The above can achieve that the same carrier wheel assembly can simultaneously complete carrying a small part of the weight, laying tracks and driving the vehicle to move; wherein at least one carrier wheel assembly alternates between carrying a small part of the weight, laying tracks and driving the vehicle to move and at least one other carrier wheel assembly carries most of the weight.

[0037] The present invention preferably provides a carrier equipment, wherein the support assembly comprises a vertical support assembly and / or a lateral support assembly, wherein the vertical support assembly is used to support the carrier and the carrier base in the vertical direction, and the lateral support assembly is used to stabilize the carrier and the carrier base in the lateral direction.

[0038] Furthermore, both the vertical support assembly and the lateral support assembly may be mechanical supports.

[0039] The present invention preferably provides a transport equipment, wherein the vertical support assembly and the lateral support assembly are both magnetic suspension assemblies that can generate repulsive forces on each other.

[0040] Furthermore, the vertical support assembly and the lateral support assembly are both superconducting magnetic levitation systems, wherein the first vertical support assembly is a first superconducting magnet, the second vertical support assembly is a first permanent magnet corresponding to the first superconducting magnet, the first lateral support assembly is a second superconducting magnet, and the second lateral support assembly is a second permanent magnet corresponding to the second superconducting magnet. The first superconducting magnet and the second superconducting magnet are stored in a first dewar and a second dewar, respectively. At the same time, a coolant is also stored in the dewar for cooling the superconducting magnet.

[0041] The present invention adopts a superconducting magnetic levitation system in the vertical direction, which generates a repulsive force that is balanced with the gravity of the suspended vehicle itself on a macro scale, thereby realizing the suspension of the vehicle. The longitudinal direction is controlled by a linear motor, which has a higher power density and more stable control of the longitudinal swing of the vehicle. The lateral direction fully utilizes the unique strong pinning ability of the superconducting magnet to ensure the control of the lateral stability of the vehicle, and realizes the decoupling of the vehicle in the longitudinal, transverse and vertical directions. The defects of the existing magnetic levitation vehicle technical solutions, such as the difficulty of longitudinal, transverse and vertical control, high energy consumption of electromagnetic levitation, the need for an external electromagnetic levitation induction track, increased cost, and insufficient control accuracy and maneuverability, are solved, the energy consumption of the suspended vehicle is reduced, and the vehicle's endurance is improved.

[0042] In addition, the first vertical support component and the second vertical support component may both be permanent magnets.

[0043] Preferably, the carrier support portion is connected to the carrier wheel connection portion to form a T-shaped structure, a mounting groove corresponding to the T-shaped structure is arranged at the bottom of the carrier, and the vertical support assembly is arranged between the upper end of the carrier support portion and the top wall of the mounting groove. Specifically, it can be a superconducting magnet and a permanent magnet design, or it can be a two permanent magnet design. As long as a repulsive force is generated above the carrier support portion and between the carrier, it is preferably a superconducting magnet and a permanent magnet design, and the strong pinning effect of superconducting magnetic levitation can be used to achieve better vertical stability control.

[0044] In order to stabilize the vertical suspension, two groups of vertical magnetic suspension support components are arranged in one installation slot, and the two groups of vertical magnetic suspension support components can be further arranged at positions close to both ends.

[0045] Similarly, lateral suspension components are provided on both sides of the vehicle support part and the side walls of the mounting groove in the T-shaped structure. Specifically, it can be a design in which a superconducting magnet and a permanent magnet are matched, or it can be a design in which two permanent magnets are matched. As long as a lateral repulsive magnetic force is generated between the two sides of the vehicle support part and the vehicle, it is preferably a design in which a superconducting magnet and a permanent magnet are matched. The strong pinning effect of superconducting magnetic suspension can be used to achieve better lateral stability control.

[0046] The above design improves the lateral stability and vertical suspension support while also improving the efficiency of space utilization, simplifying the structural design, and facilitating modular matching and production.

[0047] The carrier driving device comprises a first driving component and a second driving component, wherein the first driving component is arranged on the carrier, and the second driving component is arranged on the carrying base.

[0048] The first drive component can be arranged on the top wall, side wall or bottom wall of the installation groove, and can be specifically arranged at the two L-shaped bottom walls of the installation groove to improve the longitudinal stability. The second drive component is arranged below the carrier support portion to cooperate with the first drive component.

[0049] Preferably, when the first driving component of the carrier driving device is arranged on the bottom wall of the mounting groove and acts with the second driving component, the carrier driving device adopts a linear motor, and the repulsive force generated between the secondary and primary of the linear motor can play a vertical suspension role, and a vertical support component does not need to be separately arranged, thereby simplifying the structure.

[0050] Furthermore, when limit members are provided on both sides of the first driving component, the limit members may be balls or rollers, etc. The balls or rollers are located on both sides of the carrier driving device, thereby protecting the carrier driving device. It should be noted that limit members may be provided on the upper wall, side wall and bottom wall of the mounting groove to prevent the components therein from being damaged under extreme conditions.

[0051] Furthermore, in order to ensure stable operation and alternate stable track laying, each group of transport units includes two transport bases, and the two transport bases of each group of transport units are symmetrically arranged along the longitudinal direction of the transport vehicle.

[0052] The present invention further improves the stability of the device by arranging the two carrying bases of each group of carrying units symmetrically along the longitudinal direction of the carrying vehicle, and arranging the carrying wheel assemblies corresponding to the carrying units symmetrically along the longitudinal direction of the carrying vehicle. When one carrying wheel assembly is in the track laying state, the other carrying wheel assembly will provide stable support. In this way, the driving force on the carrying wheels is optimized and distributed, and the driving energy consumption is reduced, thereby achieving the effect of saving energy consumption.

[0053] The present invention has the following advantages and beneficial effects:

[0054] 1. The carrier wheel assembly structure of the present invention can flexibly switch between load-bearing and track-laying, and different carrier wheel assemblies are alternately operated between load-bearing and track-laying, thereby optimizing the distribution of driving force on the carrier wheels and reducing driving energy consumption, thereby achieving the effect of saving energy consumption.

[0055] 2. The magnetic levitation carrier wheel group structure of the present invention has an alternating support system arranged on each carrier wheel, and the first support assembly and the second support assembly of the alternating support system of different carrier wheel assemblies are alternately opposite to each other. When the first support assembly and the second support assembly are opposite to each other, the carrier assembly carries the load, and when the first support assembly and the second support assembly are staggered, the carrier wheel driving device works and the carrier assembly lays the track. At the same time, by designing the shapes of the first support assembly and the second support assembly, the carrier wheel can automatically and flexibly switch between the track-laying and load-bearing states, thereby achieving the effect of self-laying track, which solves the shortcomings of the control difficulty, complex structure and high energy consumption of electromagnetic suspension in the state switching scheme relying on electromagnetic suspension control.

[0056] 3. An alternating support system is provided on both sides of each carrier wheel of the magnetic levitation carrier wheel group structure of the present invention, so that the center of gravity of the carrier wheel and the magnetic levitation effect are more balanced, and the carrier load-bearing and track-laying operation are more stable.

[0057] 4. Each carrier wheel of the present invention is independently controlled by a hub motor or a wheel-side motor, and a direct-drive motor is used to drive and brake, so that each carrier wheel can realize a separately controlled carrier equipment drive and braking form. The motor is directly embedded in the carrier wheel to drive the carrier wheel independently, and the power output is more stable and reliable, the transmission structure is simple, the response speed is fast, and the reliability of the power system is improved, thereby solving the problems of poor reliability, complex structure, and low efficiency of the power system of the prior art solution.

[0058] 5. The carrier of the present invention adopts magnetic levitation in the vertical direction, and generates a levitation force that is balanced with the gravity of the suspended body on a macro scale. The carrier is controlled by a linear motor in the longitudinal direction, and the stability of the carrier in the longitudinal direction is ensured while providing part of the propulsion force. The magnetic force is fully utilized in the lateral direction to strengthen the control of the lateral stability of the carrier, thereby realizing the decoupling of the carrier's dynamics in the vertical, horizontal and vertical directions, solving the defects of the existing magnetic levitation vehicle technical solutions, such as high energy consumption of electromagnetic levitation, the need for an external electromagnetic levitation induction track, increased cost, insufficient control accuracy and maneuverability, reducing the energy consumption of levitation vehicles and improving vehicle endurance.

[0059] 6. The present invention proposes a carrier base with a T-shaped structural design to achieve horizontal arrangement of the magnet structure, longitudinal arrangement of the linear motor, and vertical arrangement of the superconducting suspension system to suspend the carrier, thereby simplifying the redundant structure and facilitating modular matching and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of the present invention, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0061] Figure 1 It is a schematic diagram of the carrier wheel set structure of the present invention installed on a carrier;

[0062] Figure 2 For the present invention Figure 1 Side view of

[0063] Figure 3 For the present invention Figure 2 Sectional view along BB;

[0064] Figure 4 For the present invention Figure 3 Enlarged view of the middle V;

[0065] Figure 5 It is a schematic diagram of the overall structure of a carrier equipment according to another embodiment of the present invention;

[0066] Figure 6 It is a side view structural schematic diagram of the suspension carrying equipment of the present invention;

[0067] Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure along the AA direction;

[0068] Figure 8 For the present invention Figure 7 The enlarged schematic diagram of the structure at position Ⅰ in the middle;

[0069] Fig. 9 For the present invention Figure 7 The enlarged schematic diagram of the structure at position II in the middle;

[0070] Fig.10 It is an enlarged schematic diagram of the structure of the carrier wheel of the present invention;

[0071] Fig.11 It is a structural schematic diagram of another installation method of the vehicle driving device of the present invention;

[0072] Fig.12 It is a schematic diagram of the structure of the transport equipment in which different transport wheel group structures of the present invention are arranged in each row of transport modules and only one transport base is included;

[0073] Fig.13 For the present invention Fig.12 Side view of

[0074] Fig.14 A diagram showing a carrier wheel structure of an embodiment of a carrier wheel assembly structure of the present invention;

[0075] Fig.15It is a schematic diagram of the structure of the alternate support system of the carrier wheel set structure of the present invention as a mechanical support;

[0076] Fig.16 This is another structural schematic diagram of the case where the alternate support system of the carrier wheel set structure of the present invention is a magnetic suspension support.

[0077] The names of the components in the attached drawings are as follows:

[0078] 1-carrying base, 101-second lateral support assembly, 102-limiting block, 103-second vertical support assembly, 104-second driving assembly, 2-carrying vehicle, 201-first vertical support assembly, 202-first driving assembly, 203-first lateral support assembly, 204-limiting member, 3-vibration reduction support system, 301-connecting arm, 302-lower support arm, 303-shock absorber; 4-carrying wheel I; 5-carrying wheel II; 6-carrying wheel III; 7-carrying wheel IV, 8-first support assembly, 9-second support assembly. DETAILED DESCRIPTION

[0079] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0080] like Figure 1-Figure 16 As shown,

[0081] An alternating load-bearing wheel group structure includes: a plurality of carrying wheel assemblies and an alternating support system, each carrying wheel assembly includes at least one carrying wheel, a carrying wheel driving device arranged on the carrying wheel, a plurality of carrying wheel assemblies are alternately driven or load-bearing, the alternating support system includes a first supporting assembly 8 and a second supporting assembly 9 which are arranged in a coordinated manner, the first supporting assembly 8 is connected to a carrying base 1 through a connecting arm 301, the second supporting assembly 9 is arranged on the carrying wheel, the second supporting assembly 9 can intermittently act with the first supporting assembly 8 as the carrying wheel rotates, and the alternating load-bearing of different groups of carrying wheel assemblies is adjusted by controlling the change in the acting force of the first supporting assembly 8 and the second supporting assembly 9, when at least one of the carrying wheel assemblies bears load under the action of the alternating support system, the other carrying wheel assemblies do not bear load and move to lay tracks under the drive of the carrying wheel driving device.

[0082] The first support assembly 8 is located above the second support assembly 9. When the force acting on the second support assembly 9 and the first support assembly 8 increases, if their positions are equal, the support force generated between the two presses down as a load-bearing carrying wheel. As the carrying wheel rotates, when the force acting on the second support assembly 9 and the first support assembly 8 is minimum, if their positions are misaligned, the carrying wheel is driven to rotate, and this group of carrying wheel assemblies drives the carrying base 1 to lay tracks, thereby realizing the switching of different carrying wheel assemblies between load-bearing and track-laying.

[0083] Multiple carrying assemblies are connected to at least two carrying bases 1, at least one carrying wheel assembly is arranged under each of the carrying bases 1, and each carrying wheel assembly includes at least two carrying wheels. When the carrying wheel assembly corresponding to the carrying base 1 bears load, the carrying wheel assembly corresponding to the other carrying base 1 drives the carrying base 1 to lay tracks along the running direction.

[0084] In one embodiment, a carrier wheel assembly is disposed under a carrier base 1, and each carrier wheel assembly is provided with a carrier wheel, such as Figure 1 and Fig.12 shown.

[0085] The second supporting assembly 9 is disposed on at least one side of the wheel hub of the carrier wheel, and the first supporting assembly 8 is disposed above the carrier wheel corresponding to the second supporting assembly 9 .

[0086] In one embodiment, a second support assembly 9 is provided on one side of the carrier wheel, and a counterweight is provided on the other side of the carrier wheel. Figure 1 , Figure 3 and Figure 4 As shown, this can ensure the stability of the carrier wheel.

[0087] In another embodiment, a second support assembly 9 of the same structure is also provided on the other side of the carrier wheel, and a first support assembly 8 is provided at a corresponding upper position of the second support assembly 9, such as Figure 5 , Figure 7 and Fig. 9 This ensures that the entire carrier wheel is subjected to a relatively balanced magnetic suspension force, and the operation or load-bearing of the carrier wheel is more stable.

[0088] For the alternating support system, in one embodiment, the first support assembly 8 and the second support assembly 9 are designed to form a magnetic suspension system. In this embodiment, the first support assembly 8 is a superconducting magnet or an electromagnet, and the second support assembly 9 is a corresponding permanent magnet, or the first support assembly 8 is a permanent magnet, and the second support assembly 9 is a superconducting magnet or an electromagnet, or the first support assembly and the second support assembly are both permanent magnets.

[0089] It should be noted that, in order to better protect the superconducting magnet, the first supporting assembly 8 is a superconducting magnet, and the second supporting assembly 9 is a permanent magnet.

[0090] The superconducting magnet is arranged in the dewar, and the dewar cavity is also connected with a coolant release device for providing low temperature for the superconducting magnet in the dewar.

[0091] In one embodiment, when the first support assembly 8 and the second support assembly 9 both use arc-shaped magnets to form a magnetic suspension system, the inner arc surfaces of the first support assembly 8 and the second support assembly 9 are both oriented toward the center of the carrier wheel, and the first support assembly 8 and the second support assembly 9 are concentric arcs, such as Figure 1 and Figure 2 The carrier wheel section is shown.

[0092] In another embodiment, both ends of the first supporting assembly 8 are bent upward, which is beneficial to protecting the first supporting assembly 8 .

[0093] When the first support assembly 8 is located directly above the carrying wheel, the positions of the second support assembly 9 of the track-laying and load-bearing carrying wheel assembly are complementary. The preferred state is that when the positions of the first support assembly 8 and the second support assembly 9 of the track-laying carrying wheel assembly are staggered, the positions of the first support assembly 8 and the second support assembly 9 of the load-bearing carrying wheel assembly are relative, so that different carrying wheel assemblies can bear load alternately. When one of them bears the load, the other is responsible for driving the carrying base 1 to lay tracks, ensuring non-load-bearing drive and reducing energy consumption.

[0094] In another embodiment, if Fig.14 As shown, the outer arc surface of the first support component 8 faces the center of the carrier wheel, and the second support component 9 is configured as an arc structure with the arc surface facing the center of the carrier wheel. A second support component 9 is disposed on one side of each carrier wheel, and the repulsive force generated between the second support component 9 and the first support component 8 is preferably able to overcome the weight of the carrier 2.

[0095] It should be noted that the second supporting assembly 9 can also be configured as a planar structure or a structure of other shapes.

[0096] In another embodiment, if Fig.15As shown, when the first support assembly 8 and the second support assembly 9 constitute a magnetic suspension system, the outer arc surface of the first support assembly 8 faces the center of the carrier wheel, and the second support assembly 9 includes a hollow cylindrical magnet structure enclosed by 360° and the inner arc surface faces the center of the carrier wheel. A section of the outer arc surface of the hollow cylindrical magnet structure is provided with a magnet protrusion facing away from the center of the carrier wheel. When the carrier wheel rotates until the protrusion is opposite to the first support assembly 8, a maximum repulsive force is generated, and the carrier wheel bears most of the weight of the carrier base 1. As the carrier wheel driving device works, the protrusion of the second support assembly 9 gradually staggers with the position of the first support assembly 8. When the positions of the two are completely staggered, the distance between the hollow cylindrical structure and the first support assembly 8 increases and there is still some repulsive force between the two. The carrier wheel still bears a small part of the weight of the carrier and the carrier base. At the same time, the carrier wheel is driven by the carrier wheel driving device to lay tracks.

[0097] The same carrier wheel assembly is realized to simultaneously complete the movement of carrying a small part of the weight and laying tracks; wherein at least one carrier wheel assembly alternates between carrying a small part of the weight and laying tracks and at least one other carrier wheel assembly carries most of the weight.

[0098] The raised portion is in an arc-shaped structure, and its outer arc surface faces away from the center of the carrier wheel, so that more flexible load-bearing switching can be achieved and the running balance can be improved.

[0099] In one embodiment, when the first support assembly 8 and the second support assembly 9 constitute a magnetic levitation system, the second support assembly 9 is a multi-segment circular arc structure, and the multi-segment circular arc structures of the track laying and load-bearing carrying wheel assembly are alternately arranged, and the magnetic force generated between the second support assembly 9 and the first support assembly 8 of each circular arc structure can overcome the weight of the vehicle 2.

[0100] In this embodiment, if Figure 1 As shown in the carrying wheel part of the second support assembly 9, the second support assembly 9 is a two-segment arc structure, and its length is greater than the length of the first support assembly 8.

[0101] In another embodiment, Figure 5 and Figure 6 In the figure, when the first support assembly 8 and the second support assembly 9 constitute a magnetic levitation system, the second support assembly 9 is composed of two convex arc segments and two concave arc segments, wherein each convex arc segment is respectively connected with the two concave arc segments to form a whole, and the convex arc segment is a concentric arc with the first support assembly 8, so that the carrying wheel can smoothly switch between the load-bearing and track-laying states.

[0102] The design principle of the concave arc segment is: from the time when the concave arc segment and the first support component 8 are opposite to each other (that is, the distance between the two is the shortest) until the distance between the concave arc segment and the first support component 8 is the farthest, the suspension force between them gradually changes from the maximum to the minimum, and then the suspension force gradually increases from the minimum to the maximum.

[0103] In one embodiment, when the first support assembly 8 and the second support assembly 9 constitute a magnetic levitation system, the second support assembly 9 is a semicircular structure, and the second support assemblies 9 of two different carrier wheel assemblies are staggered, so that when the suspension force of the first carrier wheel assembly slowly disappears, the suspension force of the other carrier wheel assembly slowly generates, thereby realizing flexible switching between load-bearing and track laying.

[0104] The shapes of the first support assembly 8 and the second support assembly 9 can also be other shapes, such as planes, and can also be other lengths, as long as the two can act alternately to generate repulsive magnetic forces so that the carrying wheels can bear the load and can switch between load-bearing and track laying.

[0105] In another embodiment, the positional relationship between the first supporting assemblies 8 and the second supporting assemblies 9 of different groups of carrying wheel assemblies can be adjusted so that the second supporting assemblies 9 of different groups of carrying wheel assemblies are arranged at the same position, but the arrangement positions of the first supporting assemblies 8 are staggered, as long as the first supporting assembly 8 and the second supporting assembly 9 of one carrying wheel assembly are relative to each other and can generate a vertical repulsive force against each other.

[0106] In another embodiment, when the first support assembly 8 and the second support assembly 9 constitute a controllable magnetic levitation system, such as an electromagnet, the load-bearing size can be adjusted by controlling the size of the suspension force between the first support assembly 8 and the second support assembly 9. When the carrying wheel assembly needs to carry loads, the load-bearing is achieved by controlling to increase the suspension force between the first support assembly 8 and the second support assembly 9, while the suspension force between the first support assembly 8 and the second support assembly 9 of the carrying wheel assembly that needs track laying is controlled to become smaller or disappear. As for the specific structure of the implementation, the first support assembly 8 can be an electromagnet, and the second support assembly 9 can be a permanent magnet formed in a circle on the wheel hub. The alternating load-bearing and track-laying can be achieved by the controllable suspension force between the electromagnet and the permanent magnet and the driving of the carrying wheel driving device.

[0107] In addition to the first supporting assembly 8 and the second supporting assembly 9 forming a magnetic suspension system, in another embodiment, as Fig.16As shown, the first support assembly 8 and the second support assembly 9 can also be mechanical support parts. When the second support assembly 9 is in contact with the first support assembly 8, the second support assembly 9 supports the first support assembly 8 upward to achieve the load-bearing of the carrying base 1. When the second support assembly 9 is staggered with the first support assembly 8, the second support assembly 9 is separated from supporting the first support assembly 8, and the load-bearing of the carrying wheel group is reduced or not carried.

[0108] In one embodiment, in order to ensure the stability of the operation of the carrying wheel, the carrying wheel is connected to the carrying base 1 through a vibration reduction support system 3, and a shock absorber 303 is arranged on the vibration reduction support system 3. The vibration reduction support system 3 is located below the connecting arm 301. One end of the lower support arm 302 of the vibration reduction support system 3 is hinged to the carrying wheel, and the other end is hinged to the carrying connecting part. The lower support arm 302 is located below the shock absorber 303. The present invention improves the stability of the carrier 2 under various road conditions by setting up the vibration reduction support system 3.

[0109] The vibration reduction support system 3 of the present invention can achieve a vibration reduction effect. When encountering an uneven road surface, it allows the carrier wheel to move up and down independently of other carrier wheels, thereby effectively reducing the impact of road surface fluctuations on the carrier 2 and providing better stability.

[0110] In order to prevent the first supporting assembly 8 and the second supporting assembly 9 from colliding when the carrying wheel fluctuates up and down, a limit assembly is provided on the shock absorber 303 .

[0111] In another embodiment, the closest distance between the connecting arm 301 and the tire of the carrying wheel is set to be smaller than the minimum distance between the first support assembly 8 and the second support assembly 9. In this way, when the carrying wheel fluctuates up and down, the tire collides with the connecting arm 301 first, and does not cause a collision between the first support assembly 8 and the second support assembly 9 to damage the magnet.

[0112] In one embodiment, in order to achieve better driving of the carrier wheel, a hub motor or a wheel-side motor is arranged inside the carrier wheel. The direct-drive hub motor or wheel-side motor directly connects the motor to the carrier wheel, omitting mechanical components such as a reducer, and has the advantage of high driving efficiency.

[0113] When the alternating support system is a superconducting magnetic suspension system, the superconducting magnet is arranged in the dewar, and the working process of the carrier wheel group structure is: when the hub motor arranged in the carrier wheel drives one carrier wheel assembly to move forward, the other carrier wheel assembly is pressed down as a load-bearing wheel because the permanent magnet on it is directly opposite to the superconducting magnet and is subjected to the superconducting repulsive force. When the carrier wheel is driven to move forward to the point where the farthest permanent magnet on it and the superconducting magnet on the carrier base 1 begin to partially face each other, at this time, the carrier wheel assembly is subjected to partial superconducting repulsive force, and the hub motor can no longer drive this group of carrier wheels. It can be regarded that this group of carrier wheels continues to move forward under the action of inertia until the superconducting magnet and the permanent magnet are directly opposite and stop. At this time, this group of carrier wheels is used as a load-bearing wheel, and the hub motor arranged on the other carrier wheel assembly starts to drive forward to lay tracks. The same principle is repeated, and the other carrier wheel assembly switches to the track-laying state. After the inertia of the previous set of driving wheels stops, the permanent magnet and the superconducting magnet are directly opposite to switch to the load-bearing state. Superconducting magnets and permanent magnets are arranged on both sides of each carrier wheel assembly, which can ensure that the left and right sides of the carrier wheel will not generate side deviation force due to the permanent magnets arranged on one side. The two sets of carrier wheels play the role of track-laying and load-bearing respectively. During the entire cyclic switching process, the suspended carrier 2 always moves forward under the drive of the linear motor.

[0114] The present invention also provides a transport equipment, comprising: a transport vehicle 2 and the transport wheel assembly structure in the above embodiment, wherein the transport vehicle 2 is located above the transport base 1, and when part of the transport wheel assemblies of the transport wheel assembly structure bears load, the other part of the transport wheel assemblies drive the transport base 1 to lay tracks. The two transport wheel assemblies alternate between bearing load and laying tracks.

[0115] The carrier equipment also includes a carrier 2, a carrier base 1, and a carrier driving device, wherein the carrier driving device is arranged on the carrier 2 and / or the carrier base 1, and is used to drive the carrier 2 to move; the carrier base 1 is located below the carrier 2; the carrier base 1 includes a carrier supporting portion and a carrier wheel connecting portion that are connected to each other, a supporting assembly is arranged between the carrier supporting portion and the carrier 2, and is used to support the carrier 2 and ensure that the carrier 2 and the carrier base 1 can move relative to each other, and the carrier wheel connecting portion is provided with the carrier wheel assembly, and the carrier wheel assembly includes at least one carrier wheel.

[0116] The carrier wheel driving device provided on the carrier wheel of the present invention drives the carrier wheel to move, thereby driving the corresponding carrier base 1 to move. The carrier driving device is used to realize the longitudinal propulsion of the carrier 2, and the support system is used for the support between the carrier 2 and the carrier base 1, thereby realizing decoupling control in different directions.

[0117] The support system includes a vertical support component and / or a lateral support component. The vertical support component is used to support the carrier 2 and the carrier base 1 in the vertical direction, and the lateral support component is used to achieve stable control of the carrier 2 and the carrier base 1 in the lateral direction.

[0118] In a specific embodiment, the vertical support assembly and / or the lateral support assembly can be mechanical supports, such as balls or rolling bearings.

[0119] In a specific embodiment, the vertical support components and / or the lateral support components are / is magnetic suspension components that can generate repulsive forces on each other.

[0120] like Figure 8 and Fig.11 As shown, the vertical support assembly includes a first vertical support assembly 201 and a second vertical support assembly 103. The first vertical support assembly 201 is arranged on the carrier 2, and the second vertical support assembly 103 is arranged on the carrier support portion.

[0121] The lateral support assembly includes a first lateral support assembly 203 and a second lateral support assembly 101 . The first lateral support assembly 203 is disposed on the carrier 2 , and the second lateral support assembly 101 is disposed on the carrier support portion.

[0122] In one embodiment, the vertical support assembly and the lateral support assembly are both superconducting magnetic levitation systems, wherein the first vertical support assembly 201 is a first superconducting magnet, the second vertical support assembly 103 is a first permanent magnet corresponding to the first superconducting magnet, the first lateral support assembly 203 is a second superconducting magnet, and the second lateral support assembly 101 is a second permanent magnet corresponding to the second superconducting magnet. The first superconducting magnet and the second superconducting magnet are stored in the first dewar and the second dewar, respectively. At the same time, the dewar also stores a coolant for cooling the superconducting magnet.

[0123] The present invention adopts superconducting magnetic levitation in the vertical direction, and generates a repulsive force that is balanced with the gravity of the suspended vehicle 2 on a macro scale, thereby realizing the suspension of the vehicle 2. The longitudinal direction is controlled by a linear motor, and has a higher power density and more stable control of the longitudinal swing of the vehicle. The lateral direction fully utilizes the unique strong pinning ability of the superconducting permanent magnet to ensure the control of the lateral stability of the vehicle, and realizes the decoupling of the vehicle in the longitudinal, transverse and vertical directions. The defects of the existing magnetic levitation vehicle technical solutions, such as the difficulty of longitudinal, transverse and vertical control, high energy consumption of electromagnetic levitation, the need for an external electromagnetic levitation induction track, increased cost, insufficient control accuracy and maneuverability, reduce the energy consumption of the suspended vehicle, and improve the vehicle's endurance.

[0124] In another embodiment, the vertical support assembly and the lateral support assembly are both permanent magnets.

[0125] In one embodiment, in order to facilitate the rational use of space, the carrier support portion is connected to the carrier wheel connection portion to form a T-shaped structure, a mounting groove corresponding to the T-shaped structure is arranged at the bottom of the carrier 2, and a vertical support assembly is arranged between the upper end of the carrier support portion and the top wall of the mounting groove, such as Figure 1 , 3 , 5, 7, 8 and Fig.11 As shown, it can be a design that specifically uses a superconducting magnet and a permanent magnet, or it can be a design that uses two permanent magnets. As long as a repulsive force is generated above the carrier support portion and between the carrier 2, it is preferably a design that uses a superconducting magnet and a permanent magnet. The strong pinning effect of superconducting magnetic levitation can be used to achieve better vertical stable suspension.

[0126] In order to stabilize the vertical suspension, two groups of vertical magnetic suspension support components are arranged in one installation slot, and the two groups of vertical magnetic suspension support components can be further arranged at positions close to both ends.

[0127] Similarly, transverse magnetic levitation components are provided on both sides of the vehicle support part and the side walls of the mounting groove in the T-shaped structure. Specifically, it can be a design in which a superconducting magnet and a permanent magnet are matched, or it can be a design in which two permanent magnets are matched. As long as a transverse repulsive magnetic force is generated between the two sides of the vehicle support part and the vehicle 2, it is preferably a design in which a superconducting magnet and a permanent magnet are matched. The strong pinning effect of the superconducting magnetic levitation can be used to achieve better lateral stability control.

[0128] The above design improves the lateral stability and vertical suspension support while also improving the efficiency of space utilization, simplifying the structural design, and facilitating modular matching and production; the carrier drive device is arranged on the top wall of the mounting groove, specifically in the middle position of the top wall, to improve the longitudinal stability.

[0129] In a specific embodiment, if Figure 3 , 7 As shown in FIG. 8 , the carrier driving device includes a first driving component 202 and a second driving component 104 that cooperate with each other, and the installation positions of the two are interchangeable. The carrier driving device is a linear motor. As for the installation position of the linear motor, the primary structure or secondary structure of the linear motor can be set on the top wall and the side wall of the installation groove, and the upper surface of the carrier support portion is arranged with a secondary or primary structure corresponding to the installation groove of the carrier 2. In addition, the carrier support portion can directly use ferromagnetic material to form a linear motor with the primary structure or secondary structure on the carrier 2.

[0130] In another embodiment, the first driving assembly 202 may be disposed at two L-shaped inner bottom walls of the mounting groove to improve longitudinal stability, and the second driving assembly 104 is disposed below the carrier support portion to cooperate with the first driving assembly 202 .

[0131] When the first driving component 202 of the carrier driving device is arranged on the bottom wall of the mounting groove and acts with the second driving component 104, the carrier driving device adopts a linear motor, and the repulsive force generated between the secondary and primary of the linear motor can play a role of vertical suspension, so there is no need to set a separate vertical support component, thereby simplifying the structure.

[0132] In a specific embodiment, two sides of the first driving assembly are further provided with stoppers 204 , and the stoppers 204 may be balls or rollers so as to protect the vehicle driving device.

[0133] In order to prevent the lower end of the carrier support portion from colliding with the bottom of the installation groove and causing damage in extreme cases, limit blocks 102 are also provided at the bottom and side walls of the installation groove.

[0134] In another embodiment, if the first support assembly 8 and the second support assembly 9 of the carrier wheel group structure constitute a magnetic suspension system, the second support assembly 9 includes a hollow cylindrical magnet structure enclosed by 360° and the inner arc surface faces the center of the carrier wheel, and a section of the outer arc surface of the hollow cylindrical magnet structure is provided with a magnet protrusion facing away from the center of the carrier wheel. When the carrier wheel rotates until the protrusion is opposite to the first support assembly, a maximum repulsive force is generated, and the carrier wheel bears most of the weight of the carrier 2 and the carrier base 1. As the carrier wheel driving device works, the protrusion of the second support assembly 9 gradually staggers with the position of the first support assembly 8. When the positions of the two are completely staggered, the hollow cylindrical structure The distance between the carrier wheel and the first supporting assembly 8 increases and there is still some repulsive force between the two. The carrier wheel still bears a small part of the weight of the carrier 2 and the carrier base 1. As the carrier wheel continues to rotate, the repulsive force causes the magnetic suspension supporting assembly between the carrier 2 and the carrier base 1 to continue to have some magnetic force. Under the action of this part of the magnetic force, the movement of the carrier base 1 will drive the carrier 2 to move together. When the magnetic force is sufficient to drive the carrier 2 to move, there is no need to set up a separate carrier driving device or not start the carrier device. When the magnetic force is not sufficient to drive the carrier 2 to move, a separate carrier driving device can be set up or the carrier device can be started to enhance the force between the two, thereby driving the carrier 2 to move.

[0135] In this embodiment, the same carrier wheel assembly can simultaneously carry a small portion of the weight, lay tracks, and drive the carrier 2 to move; wherein at least one carrier wheel assembly alternates between carrying a small portion of the weight, laying tracks, and driving the carrier 2 to move and at least one other carrier wheel assembly alternates between carrying most of the weight.

[0136] A carrying wheel assembly is provided with at least one carrying wheel, a carrying base 1 is provided with at least one carrying wheel assembly, at least one carrying wheel assembly and at least one carrying base 1 constitute a carrying unit, and the carrying unit is divided into a "carrying" unit and a "track laying" unit.

[0137] In a specific embodiment, in order to ensure stable operation and alternating stable track laying, each carrier unit includes two carrier bases 1, each carrier base 1 is provided with a carrier wheel in the front and rear longitudinal direction of the carrier 2, the two carrier wheels constitute a carrier wheel assembly, and the two carrier bases 1 of each carrier unit are symmetrically arranged in the longitudinal direction of the carrier 2.

[0138] In this embodiment, the two carrying bases 1 of each carrying unit are symmetrically arranged along the longitudinal direction of the carrying body 2, and the carrying wheel assemblies corresponding to the carrying units are symmetrically arranged along the longitudinal direction of the carrying body 2, thereby further improving the stability of the device. When one carrying unit is in the track laying state, the other carrying unit will provide stable support. In this way, the driving force on the carrying wheels is optimized and distributed, and the driving energy consumption is reduced, thereby achieving the effect of saving energy consumption.

[0139] Regarding the number of carrier bases 1, one implementation is as follows: Fig.12 As shown, four carrier bases and eight carrier wheels arranged in parallel laterally constitute two carrier units. A carrier wheel is respectively arranged at the left and right ends of each carrier base 1. The two carrier wheels constitute a carrier wheel assembly. The carrier wheel assemblies are respectively: carrier wheel group I4, carrier wheel group II5, carrier wheel group III6 and carrier wheel group IV7 from front to back, wherein carrier wheel group I4 and carrier wheel group III6 constitute a carrier unit, and carrier wheel group II5 and carrier wheel group IV7 constitute a carrier unit. The two carrier units carry loads and lay tracks alternately.

[0140] In another specific embodiment, four carrier bases 1 and eight carrier wheels are arranged in parallel along the carrier 2 in the longitudinal direction, and a carrier wheel is respectively arranged at the front and rear ends of each carrier base 1, and two carrier wheels constitute a carrier wheel assembly, such as Figure 1 , 3 , 5 and Figure 7 As shown, the carrying wheel group from left to right is: carrying wheel I4, carrying wheel II5, carrying wheel III6 and carrying wheel IV7, wherein carrying wheel I4 and carrying wheel IV7 constitute a carrying unit, carrying wheel II5 and carrying wheel III6 constitute a carrying unit, and the two carrying units carry loads and lay tracks alternately.

[0141] In order to prevent the carrier 2 from being separated from the carrier base 1 , a protrusion for limiting is provided on the carrier base 1 to form a limit.

[0142] The present invention also provides an operation method based on the above-mentioned carrier equipment:

[0143] Step 1: Control the carrying wheel driving device of at least one group of carrying wheel assemblies to work so that the carrying wheels rotate to drive the carrying unit to lay tracks; at least one group of carrying wheel assemblies of the remaining carrying units supports the weight of the carrying base and the carrier 2 through the magnetic suspension system;

[0144] Step 2: The position of the magnetic levitation system of the carrying wheel assembly carried in step 1 is gradually staggered, the levitation force is weakened or disappears, and the carrying wheel driving device works to rotate the carrying wheel to drive the carrying unit to move, and the carrier driving device drives the carrier 2 to move and the carrying unit lays tracks relative to the carrier 2 along the movement direction; the carrying wheel assembly of the carrier unit laying tracks in step 1 stops driving, and the weight of the carrying base and the carrier 2 is supported by the magnetic levitation system, and steps 1 and 2 are repeated in a cycle to realize the self-track laying operation of the carrier base through alternating track laying and carrying by the carrier unit.

[0145] The above operation mode also includes the steering operation of the carrier wheel:

[0146] A group of carrier wheel drive devices in working state in step 1 and step 2 are controlled to rotate at different speeds, or a group of carrier wheel drive devices in working state are controlled to rotate in different directions to realize differential steering.

[0147] In the present invention, the “transverse direction” refers to the width direction of the carrier 2 , the “longitudinal direction” refers to the length direction of the carrier 2 , and the “vertical direction” refers to the perpendicular direction from the ground to the carrier 2 .

[0148] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An alternating load-bearing wheel set structure, characterized in that: include: Multiple carrier wheel assemblies and alternating support systems, Each carrier wheel assembly comprises at least one carrier wheel, the carrier wheel being connected to a carrier base (1), and the carrier wheel being provided with a carrier wheel driving device. The alternating support system comprises a first support assembly (8) and a second support assembly (9) which are arranged in coordination with each other, wherein the first support assembly (8) is connected to the carrier base (1), and the second support assembly (9) is arranged on the carrier wheel. The second support assembly (9) can generate intermittent support with the first support assembly (8) as the carrier wheel rotates, and the alternating load-bearing of the carrier wheel assembly is adjusted by controlling the change in the acting force of the first support assembly (8) and the second support assembly (9). A plurality of carrier assemblies are connected to at least two carrier bases (1), at least one carrier wheel assembly is arranged below each carrier base (1), and when the carrier wheel assembly corresponding to the carrier base (1) bears a load, the carrier wheel assembly corresponding to the other carrier base (1) drives the carrier base (1) to lay tracks along a running direction.

2. The alternating load-bearing wheel set structure according to claim 1, characterized in that: At least one side of each of the carrier wheels is provided with the alternating support system.

3. An alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The first support assembly (8) and the second support assembly (9) are designed to form a magnetic suspension system; the first support assembly (8) is a superconducting magnet or an electromagnet, and the second support assembly (9) is a permanent magnet; or the first support assembly (8) is a permanent magnet and the second support assembly (9) is a superconducting magnet or an electromagnet; or both the first support assembly (8) and the second support assembly (9) are permanent magnets; and the carrier wheel assembly is alternately loaded by generating a changing magnetic force between the first support assembly (8) and the second support assembly (9).

4. An alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The first support assembly (8) and the second support assembly (9) are both mechanical support components. When the second support assembly (9) is in contact with the first support assembly (8), the second support assembly (9) supports the first support assembly (8) upwards, thereby bearing the weight of the carrier base (1). When the second support assembly (9) is offset from the first support assembly (8), the second support assembly (9) does not support the first support assembly (8).

5. The alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The inner arc surfaces of the first support assembly (8) and the second support assembly (9) are both oriented toward the center of the carrier wheel, and at least one second support assembly (9) is provided on one side of each carrier wheel.

6. An alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The outer arc surface of the first support assembly (8) faces the center of the carrier wheel, and at least one second support assembly (9) is provided on one side of each carrier wheel.

7. An alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The second support assembly (9) comprises a hollow cylindrical magnet structure enclosing 360° and with an inner arc surface facing the center of the carrier wheel; a section of the outer arc surface of the hollow cylindrical magnet structure is provided with a magnet protrusion facing away from the center of the carrier wheel.

8. The alternating load-bearing wheel set structure according to claim 7, characterized in that: The magnet protrusion is in an arc-shaped structure, and the outer arc surface faces away from the center of the carrying wheel.

9. The alternating load-bearing wheel set structure according to claim 1, characterized in that: The second support assembly (9) comprises a plurality of arc structures arranged at intervals, and the plurality of arc structures of the track-laying and load-bearing transport wheel assemblies are arranged alternately.

10. An alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The second support assembly (9) is composed of at least two convex arc segments and at least two concave arc segments, wherein each convex arc segment is connected to two concave arc segments to form a whole.

11. An alternating load-bearing wheel set structure according to claim 1 or 2, characterized in that: The carrier wheel is connected to the carrier base (1) via a vibration-damping support system (3), and the vibration-damping support system (3) is installed below the connecting arm (301).

12. A transport equipment, characterized in that: The invention comprises a carrier (2) and an alternating load-bearing wheel assembly structure as claimed in any one of claims 1 to 11, wherein the carrier (2) is located above all carrier bases (1), and when part of the carrier wheel assemblies of the alternating load-bearing wheel assembly structure are loaded, another part of the carrier wheel assemblies drive the carrier base (1) to lay tracks.

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