Hub mechanism, wheel device, power generation equipment and driving system

Abstract

A hub mechanism is used for being connected with a driving buffering assembly in a sleeved mode and comprises a hub body and a plurality of piston assemblies, the hub body is provided with a plurality of piston cavities and a plurality of piston hole sets, and each piston hole set comprises a plurality of piston holes. Each piston cavity is respectively communicated with the plurality of piston holes of the corresponding piston hole group; the peripheral wall of the hub body is used for being connected with the driving buffering assembly in a sleeving mode. Each piston assembly comprises a piston plate body and a plurality of piston unit columns, the multiple piston unit columns are connected to the piston plate body side by side, and the piston plate body of each piston assembly is located in the corresponding piston cavity and slidably connected with the hub body. The multiple piston unit columns correspond to the multiple piston holes of the corresponding piston hole sets in a one-to-one mode, and each piston unit column is slidably connected with the hub body and used for being connected to the driving buffering assembly. And each piston cavity is used for communicating with a liquid inlet end of a power generation mechanism when rotating to a first preset angle position along with the hub main body, and communicating with a liquid outlet end of the power generation mechanism when rotating to a second preset angle position along with the hub.

Description

Hub mechanism, wheel device, power generation equipment and driving system Technical Field

[0001] The present application relates to a wheel hub mechanism, a wheel device, a power generation device and a driving system. Background Art

[0002] Driving systems are categorized into automobiles, trucks, electric vehicles, and motorcycles. For example, automobiles are classified according to the energy source they convert into, including gasoline-powered, gas-powered, and electric vehicles. In the initial stages of vehicle use, they mimic train wheels, meaning they are made of pure metal, such as steel. These wheels exhibit minimal deformation during ground travel. While this eliminates energy loss due to wheel deformation, they can still cause vibration and poor ride comfort.

[0003] For this reason, regardless of the type of car, the wheels of the car are equipped with tires, so that the wheels of the car can solve the problems of vibration and poor comfort through the deformation of the tires, thereby enabling the car to meet the shock absorption and comfort requirements. This also brings the problem of large driving power loss. That is to say, in order to compensate for the problems of vibration and poor comfort, the power loss caused by the deformation of the tires of the wheels accounts for a large proportion of the driving power loss. In addition, in addition to being converted into power, the energy of the car also needs to provide lighting or in-car air conditioning cooling or external power, etc., which makes the energy consumption demand of the car relatively large.

[0004] In order to alleviate the energy consumption demand of the automobile, a power generation mechanism is added to the driving system so that the driving system can generate electricity synchronously during driving, such as patent CN102358184A.

[0005] However, the wheel hub of the above-mentioned driving system is relatively large under the condition of the same power generation power requirement, making the wheel device of the vehicle relatively bulky.

[0006] Summary of the Invention

[0007] Based on this, it is necessary to provide a wheel hub mechanism with a smaller volume, a wheel device, a power generation device and a travel system.

[0008] A wheel hub mechanism is used for sleeve-mounting a travel buffer assembly, and the wheel hub mechanism comprises:

[0009] A wheel hub body, wherein the wheel hub body is provided with a plurality of piston cavities and a plurality of piston hole groups, each of the piston hole groups includes a plurality of piston holes, and each of the piston cavities is respectively communicated with the plurality of piston holes of the corresponding piston hole group; an outer peripheral wall of the wheel hub body is used for sleeve-mounting the travel buffer assembly;

[0010] Multiple piston assemblies, each of the piston assemblies includes a piston plate body and multiple piston unit columns, multiple piston unit columns are connected to the piston plate body side by side, the piston plate body of each piston assembly is located in the corresponding piston cavity and is slidingly connected to the wheel hub body, multiple piston unit columns correspond one-to-one to the multiple piston holes of the corresponding piston hole group, each piston unit column is slidingly connected to the wheel hub body, and each piston unit column is used to be connected to the travel buffer assembly; each piston cavity is used to communicate with the liquid inlet end of the power generation mechanism when the wheel hub body rotates to a first predetermined angle position, and to communicate with the liquid outlet end of the power generation mechanism when the wheel hub rotates to a second predetermined angle position.

[0011] A wheel device includes a running buffer assembly and a hub mechanism as described in any of the above embodiments, wherein the inner peripheral wall of the running buffer assembly is formed with an elastic deformation portion, the outer peripheral wall of the hub body is sleeved on the running buffer assembly, and each piston unit column is connected to the elastic deformation portion.

[0012] A power generation device comprises a power generation mechanism and a wheel device as described in any of the above embodiments, wherein each piston cavity is connected to the liquid inlet end of the power generation mechanism when the wheel hub rotates to a first predetermined angular position, and is connected to the liquid outlet end of the power generation mechanism when the wheel hub rotates to a second predetermined angular position.

[0013] A travel system comprising a rotating shaft, a travel body, and the power generation device according to any one of the above embodiments, wherein the hub body is connected to the rotating shaft, the rotating shaft is rotatably connected to the travel body, and the power generation mechanism is provided on the travel body;

[0014] The wheel device also includes multiple vibration damping assemblies, and the multiple vibration damping assemblies are arranged in a one-to-one correspondence with the multiple piston assemblies; each vibration damping assembly includes a connecting plate, an elastic support assembly and a first elastic limit block, and the connecting plate of each vibration damping assembly is connected between the rubber hoop and the piston of the corresponding piston assembly.

[0015] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0017] FIG1 is a schematic diagram of a power generation device according to an embodiment;

[0018] FIG2 is a schematic diagram of a wheel device of the power generation equipment shown in FIG1 ;

[0019] FIG3 is a partial schematic diagram of the hub mechanism of the wheel device shown in FIG1 ;

[0020] FIG4 is a cross-sectional view of the hub mechanism shown in FIG3 ;

[0021] FIG5 is a partial schematic diagram of the hub mechanism shown in FIG3 ;

[0022] FIG6 is another partial schematic diagram of the wheel device of the power generation equipment shown in FIG1;

[0023] FIG7 is a partial schematic diagram of point A of the power generation equipment shown in FIG1 ;

[0024] FIG8 is a schematic diagram of the wheel device of the power generation equipment shown in FIG1 from another perspective;

[0025] FIG9 is a partial schematic diagram of the wheel device shown in FIG8;

[0026] FIG10 is a partial schematic diagram of the power generation mechanism of the power generation equipment shown in FIG1 . DETAILED DESCRIPTION

[0027] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the relevant drawings. Preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of the present application. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0028] The present application provides a wheel hub mechanism for sleeved travel buffer assembly, the wheel hub mechanism comprising a wheel hub body and a plurality of piston assemblies, the wheel hub body being provided with a plurality of piston cavities and a plurality of piston hole groups, each of the piston hole groups comprising a plurality of piston holes, and each of the piston cavities being communicated with a plurality of piston holes of a corresponding piston hole group; the outer peripheral wall of the wheel hub body being used for sleeved travel buffer assembly; each of the piston assemblies comprising a piston plate body and a plurality of piston unit columns, the plurality of piston unit columns being connected side by side to the piston plate body, the piston plate body of each piston assembly being located in a corresponding piston cavity and being slidably connected to the wheel hub body, the plurality of piston unit columns being respectively arranged in a one-to-one correspondence with the plurality of piston holes of a corresponding piston hole group, each of the piston unit columns being slidably connected to the wheel hub body, and each of the piston unit columns being used for connecting to the travel buffer assembly; each of the piston cavities being used for communicating with a liquid inlet end of a power generation mechanism when the wheel hub body rotates to a first predetermined angular position, and for communicating with a liquid outlet end of the power generation mechanism when the wheel hub rotates to a second predetermined angular position.

[0029] The above-mentioned wheel hub mechanism, since each piston cavity is connected with the liquid inlet end of the power generation mechanism when the wheel hub body rotates to the first predetermined angular position, and is connected with the liquid outlet end of the power generation mechanism when the wheel hub body rotates to the second predetermined angular position, each piston assembly slides to a different position relative to the wheel hub body as the wheel hub body rotates to different positions, thereby enabling the power generation mechanism to continuously generate electricity; since each piston hole group includes a plurality of piston holes, each piston cavity is respectively connected with a plurality of piston holes of the corresponding piston hole group, and since each piston assembly includes a piston plate body and a plurality of piston unit columns, when the wheel hub assembly rolls relative to the ground, the position where the wheel hub assembly contacts the ground is deformed, and since each piston unit column is connected to the running buffer assembly, the deformation generated by the running buffer assembly pushes the plurality of piston unit columns of the corresponding piston assembly to slide relative to the wheel hub body; the plurality of piston units The columns are connected to the piston plate body side by side, which reduces the space occupied by each piston assembly on the outer wall of the hub body. In addition, the piston plate body of each piston assembly is located in the corresponding piston cavity and is slidably connected to the hub body. Multiple piston unit columns correspond one-to-one to multiple piston holes of the corresponding piston hole group. Each piston unit column is slidably connected to the hub body, so that the piston plate body of each piston assembly can simultaneously drive multiple piston unit columns to slide relative to the hub body, so that multiple piston unit columns can act on the same piston plate body at the same time. Under the condition of the same power generation power, the surface area required for the circumferentially arranged piston assembly of the hub body is greatly reduced, the volume of the hub body is reduced, and the volume of the wheel device is reduced. That is to say, under the condition of the same volume of the hub body, the power generation power generated by the hub mechanism during driving is larger, and the power performance of the hub mechanism is improved at the same time.

[0030] To better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below with reference to specific embodiments:

[0031] As shown in Figures 1 and 2, a wheel device 10 according to one embodiment includes a running cushioning assembly 100 and a wheel hub mechanism 200. The wheel hub mechanism 200 is sleeved onto the running cushioning assembly 100, and the outer peripheral wall of the wheel hub mechanism 200 is sleeved onto the running cushioning assembly 100, so that the running cushioning assembly 100 is sleeved and mounted on the outer peripheral wall of the wheel hub mechanism 200. Furthermore, the wheel hub mechanism 200 includes a wheel hub body 200a and a plurality of piston assemblies 200b. The wheel hub body 200a defines a plurality of piston cavities 202 and a plurality of piston hole groups 204. Each piston hole group 204 includes a plurality of piston holes 204a, and each piston cavity 202 communicates with the plurality of piston holes 204a of a corresponding piston hole group 204. The outer peripheral wall of the wheel hub body 200a is configured to sleeve onto the running cushioning assembly 100, so that the running cushioning assembly 100 can be sleeved and mounted on the outer peripheral wall of the wheel hub body 200a.

[0032] Furthermore, each piston assembly 200b includes a piston plate body 210 and a plurality of piston unit columns 220, the plurality of piston unit columns 220 being connected side by side to the piston plate body 210, the piston plate body 210 of each piston assembly 200b being located within the corresponding piston cavity 202 and being slidably connected to the wheel hub body 200a, the plurality of piston unit columns 220 being respectively arranged in a one-to-one correspondence with the plurality of piston holes 204a of the corresponding piston hole group 204, each piston unit column 220 being slidably connected to the wheel hub body 200a, and each piston unit column 220 being connected to the travel buffer assembly 100. In this embodiment, an elastic deformation zone is formed on the inner circumferential wall of the travel buffer assembly 100, and each piston unit column 220 is connected to the elastic deformation zone. When the travel buffer assembly 100 rolls on the ground, the portion of the travel buffer assembly 100 in contact with the ground deforms, causing the elastic deformation zone to deform. The "plurality" described in this application means more than two, including two situations. It is understood that each piston unit column 220 can be directly connected to the elastic deformation zone, or indirectly connected to the elastic deformation zone. In this embodiment, each piston unit column 220 is indirectly connected to the elastic deformation zone.

[0033] When the running buffer assembly 100 rolls in contact with the ground, the part of the running buffer assembly 100 in contact with the ground is deformed. When the elastic deformation area of ​​the running buffer assembly 100 is deformed under pressure, it drives the adjacent piston assembly 200b to slide relative to the hub body 200a, that is, drives the multiple piston unit columns 220 of the piston assembly 200b to slide relative to the hub body 200a. As the hub body 200a continues to roll relative to the ground, each piston assembly 200b can slide back and forth periodically relative to the hub body 200a, so as to periodically squeeze the hydraulic fluid in one of the piston cavities 202, so that the hydraulic fluid can be periodically pressed into another piston cavity 202.

[0034] Furthermore, each piston cavity 202 is used to communicate with the liquid inlet end 24 of the generator mechanism 20 when the hub body 200a rotates to a first predetermined angular position, and to communicate with the liquid outlet end 26 of the generator mechanism 20 when the hub body 200a rotates to a second predetermined angular position, so that the hydraulic fluid in the piston cavity 202 flows out to the liquid inlet end 24 of the generator mechanism 20 when the hub body 200a rotates to the first predetermined angular position, and the piston cavity 202 presses the hydraulic fluid through the liquid outlet end 26 of the generator mechanism 20 when the hub body 200a rotates to the second predetermined angular position, so that the hydraulic fluid circulates in the generator mechanism 20 to drive the generator mechanism 20 to operate and generate electrical energy.

[0035] In the wheel device 10 and its hub mechanism 200, each piston cavity 202 is connected to the liquid inlet 24 of the power generation mechanism 20 when the hub body 200a rotates to a first predetermined angular position, and is connected to the liquid outlet 26 of the power generation mechanism 20 when the hub body rotates to a second predetermined angular position. As a result, each piston assembly 200b slides to a different position relative to the hub body 200a as the hub body rotates to different positions, thereby enabling the power generation mechanism 20 to continuously generate electricity. Since each piston hole group 204 includes a plurality of piston holes 204 a. Each piston cavity 202 is respectively connected to the multiple piston holes 204a of the corresponding piston hole group 204. Since each piston assembly 200b includes a piston plate body 210 and multiple piston unit columns 220, when the wheel hub assembly rolls relative to the ground, the position where the wheel hub assembly contacts the ground is deformed. Since each piston unit column 220 is connected to the travel buffer assembly 100, the deformation generated by the travel buffer assembly 100 pushes the multiple piston unit columns 220 of the corresponding piston assembly 200b to slide relative to the wheel hub body 200a; multiple pistons The unit columns 220 are connected to the piston plate 210 side by side, which reduces the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a. In addition, the piston plate 210 of each piston assembly 200b is located in the corresponding piston cavity 202 and is slidably connected to the hub body 200a. The multiple piston unit columns 220 correspond to the multiple piston holes 204a of the corresponding piston hole group 204 one by one. Each piston unit column 220 is slidably connected to the hub body 200a, so that the piston plate 210 of each piston assembly 200b can simultaneously drive Multiple piston unit columns 220 slide relative to the hub body 200a, so that multiple piston unit columns 220 can act on the same piston plate 210 at the same time. Under the condition of equal power generation power, the surface area required for the circumferentially arranged piston assembly 200b of the hub body 200a is greatly reduced, the volume of the hub body 200a is reduced, and the volume of the wheel device 10 is reduced. That is to say, under the condition of the same hub body volume, the power generation power generated by the hub mechanism during driving is greater, and the dynamic performance of the hub mechanism is improved.

[0036] In one embodiment, a positioning groove 2042 is formed on the inner peripheral wall of each piston hole 204a of each piston hole group 204, and the hub mechanism 200 also includes a plurality of piston ring groups 200c, each piston ring group 200c includes a plurality of piston rings 2002, and the plurality of piston rings of each piston ring group 200c are arranged in the corresponding positioning groove 2042 of each piston hole 204a of the corresponding piston hole group 204, so that each piston unit column 220 is tightly slidably connected to the corresponding piston hole 204a to avoid leakage problems.

[0037] As shown in FIG1 and FIG2, in one embodiment, the multiple piston unit columns 220 of each piston assembly are arranged side by side at the same radial cross section on the outer peripheral wall of the hub body 200a, that is, the multiple piston unit columns 220 of the same piston assembly 200b are arranged in the direction of the outer peripheral wall of the hub body 200a and the direction of the hub body 200a. The tangential directions of the outer peripheral wall of the hub body 200a are mutually perpendicular. That is, the multiple piston unit columns 220 of the same piston assembly 200b are arranged side by side along the radial width direction of the hub body 200a, so that each piston assembly 200b occupies less space on the outer peripheral wall of the hub body 200a. This allows the piston plate 210 of each piston assembly 200b to better and simultaneously drive the multiple piston unit columns 220 to slide relative to the hub body 200a, allowing the multiple piston unit columns 220 to better and simultaneously act on the same piston plate 210. In this way, under the condition of equal power generation, the surface area required for the circumferentially arranged piston assemblies 200b of the hub body 200a can be minimized, greatly reducing the volume of the hub body 200a, and thus reducing the volume of the wheel assembly 10. In this embodiment, the radial cross section passes through the diameter of the outer peripheral wall of the hub body 200a, and the radial cross section passes through the central axis of the hub body's rolling motion, that is, the central axis is within the radial cross section. The multiple piston unit columns 220 of each piston assembly are arranged side by side at the same radial cross-section on the outer peripheral wall of the hub body 200a, that is, the side-by-side direction of the multiple piston unit columns 220 of each piston assembly is parallel to the direction of the central axis of the hub body, and the multiple piston hole groups are evenly distributed along the circumference of the hub body, so that the multiple piston assemblies are at multiple different circumferential positions along the circumferential direction of the hub body 200a.

[0038] As shown in Figures 1 and 2, a sealing oil scraper ring 212 is further provided on the outer peripheral wall of the piston plate body 210 of each piston assembly 200b. The sealing oil scraper ring 212 is slidably connected to the inner peripheral wall of the piston cavity 202, so that the piston plate body 210 of each piston assembly 200b is tightly slidably connected to the piston cavity 202. It is understood that in one embodiment, the sealing oil scraper ring 212 can be a silicone ring or a carbon fiber ring.

[0039] As shown in Figures 1 and 2, in one embodiment, the hub body 200a includes a hub 230 and an annular cover plate 240. The outer peripheral wall of the hub 230 is formed with a mounting annular groove 232 for receiving the travel cushioning assembly 100. The hub 230 is provided with a plurality of piston grooves 206 and a plurality of piston hole groups 204. The annular cover plate 240 is provided on the inner peripheral wall of the hub 230 to enclose a plurality of piston cavities 202. In this embodiment, a relief groove 234 is formed on one side of the hub 230. The mounting annular groove 232 is formed on the inner peripheral wall of the relief groove. The annular cover plate 240 is provided on the inner peripheral wall of the relief groove of the hub 230, thereby reducing the space occupied by the annular cover plate 240 and making the structure of the hub mechanism 200 more compact. In one embodiment, the side of the hub 230 where the relief groove is provided is located adjacent to the suspension 30.

[0040] As shown in Figures 1 and 2, in one embodiment, the annular cover plate 240 is detachably connected to the inner circumferential wall of the wheel hub 230, and the annular cover plate 240 is tightly connected to the inner circumferential wall of the wheel hub 230, so that the wheel hub mechanism 200 can be disassembled, assembled, or maintained, thereby improving the ease of use of the wheel hub mechanism 200. In this embodiment, the wheel hub mechanism 200 further includes a plurality of locking members 200d. The annular cover plate 240 is provided with a plurality of mounting holes 242, and the inner circumferential wall of the wheel hub 230 is formed with a plurality of threaded holes 231. Each locking member is respectively inserted into a corresponding mounting hole and a corresponding threaded hole, so that the annular cover plate 240 is detachably connected to the inner circumferential wall of the wheel hub 230.

[0041] As shown in Figures 1 and 2, in one embodiment, the inner circumferential wall of the annular cover plate 240 is provided with a plurality of communication grooves 246. The plurality of communication grooves 264 are in one-to-one communication with the plurality of piston grooves 206 to better form the plurality of piston cavities 202. Also referring to Figures 3 to 5, the inner circumferential wall of the annular cover plate 240 is further provided with a plurality of sealing ring grooves 245. The hub mechanism 200 also includes a plurality of sealing rings 200e. Each sealing ring groove 245 is disposed around a corresponding communication groove. The plurality of sealing rings 200e are respectively protruded into the corresponding sealing ring grooves 245 to prevent leakage of the piston cavities 202 and to ensure a tight connection between the annular cover plate 240 and the inner circumferential wall of the hub 230.

[0042] As shown in Figures 1 and 6, in one embodiment, the hub mechanism 200 further includes an oil guide structure 200f, which includes a liquid guide plate 250 and a rotating sleeve 260. The liquid guide plate 250 is used to be mounted on the suspension 30, and the rotating sleeve 260 is connected to the hub body 200a. The rotating sleeve 260 is rotatably connected to the liquid guide plate 250, and a liquid sealing gap 255 is formed between the rotating sleeve 260 and the liquid guide plate 250. The liquid guide plate 250 is formed with a first buffer cavity 201 and a second buffer cavity 203. Both the first buffer cavity 201 and the second buffer cavity 203 are in communication with the liquid sealing gap 255. The first buffer cavity 201 is used to communicate with the liquid inlet end 24 of the power generation mechanism 20, and the second buffer cavity 203 is used to communicate with the liquid outlet end 26 of the power generation mechanism 20. Each piston cavity 202 is used to communicate with the first cache cavity when the hub body 200a rotates to the first predetermined angular position, and to communicate with the second cache cavity when the hub body 200a rotates to the second predetermined angular position, so that each piston cavity 202 is connected to the liquid inlet end 24 of the power generation mechanism 20 when the hub body 200a rotates to the first predetermined angular position, and is connected to the liquid outlet end 26 of the power generation mechanism 20 when the hub body rotates to the second predetermined angular position. In this embodiment, the liquid guide plate 250 is mounted and fixed to the suspension 30, so that the liquid guide plate 250 is stationary relative to the suspension 30. The rotating sleeve 260 is connected to the wheel hub body 200a, so that the liquid guide plate 250 and the rotating sleeve 260 rotate relative to each other. This enables the liquid guide structure to guide the hydraulic fluid in the piston cavity 202 into the generator mechanism 20, and vice versa. This eliminates the need to integrate the generator mechanism 20 with the wheel hub mechanism 200, thereby reducing the volume of the wheel hub mechanism 200, especially the wheel hub body 200a. Specifically, the liquid guide structure is disposed within the avoidance groove, and the generator mechanism 20 is mounted on the vehicle frame. It can be understood that the gap of the sealing gap 255 is very small. Although some hydraulic fluid in the first buffer chamber 201 or the second buffer chamber 203 enters the sealing gap 255, due to its small size, it cannot flow smoothly and can only form a film layer to block the flow. This prevents leakage or flow of hydraulic fluid from affecting the hydraulic pressure of two adjacent piston assemblies 200b. Furthermore, the liquid guide plate 250 is mounted and fixed to the suspension 30 via a fixing clamp 253. In this embodiment, one end of the mounting clamp is connected to the liquid guide plate 250, and the other end is fixed to the suspension 30.

[0043] As shown in Figures 1 and 6, in one embodiment, the liquid guide plate 250 is formed with an avoidance hole 254, and the wheel hub body 200a is protruding with a connecting shaft 2002, which is passed through the avoidance hole, and the connecting shaft is used to connect to the brake disc 40. In this embodiment, the connecting shaft is connected to the connecting plate of the brake disc. The connecting shaft is connected to the rotating shaft (not shown) through the brake disc 40, and the rotating shaft drives the wheel hub body 200a to rotate through the connecting shaft. The rotating shaft is the driving shaft of the driving system, and the driving shaft is connected to the driving mechanism of the driving system, such as the driving shaft is connected to the output end of the transmission of the driving system. Furthermore, the wheel hub body 200a is detachably connected to the connecting shaft. Furthermore, a boss portion 2004 is formed on the surface of the hub body 200a, and a thread groove 2004a is formed on the boss portion. One end of the connecting shaft is located in the thread groove and is threadedly connected to the boss portion, and the rotation direction of the threaded fixed connection between the connecting shaft and the thread groove is opposite to the rotation direction of the hub mechanism 200 during normal driving of the driving system, and is the same as the rotation direction when the driving system is reversing, thereby avoiding the problem of the connection between the hub body 200a and the connecting shaft being easily loosened. Furthermore, the hub mechanism 200 also includes a center bolt 200i, the wheel hub is provided with a fixing hole, the connecting shaft is formed with a center hole, the center bolt is passed through the fixing hole, and the center bolt portion is located in the center hole and fixedly connected to the connecting shaft. It can be understood that in other embodiments, the thread groove 2004a is not limited to being provided on the boss portion, but can also be provided on the connecting shaft. In this embodiment, a thread is formed on the outer peripheral wall of the boss portion. And / or,

[0044] As shown in Figures 1 and 6, in one embodiment, the oil guide structure 200f also includes a first bearing 270 and a second bearing 280, the inner ring of the first bearing 270 and the inner ring of the second bearing 280 are both sleeved on the liquid guide plate 250, and the two ends of the rotating sleeve 260 are respectively sleeved on the outer ring of the first bearing 270 and the outer ring of the second bearing 280, so that the rotating sleeve 260 is reliably rotatably connected to the liquid guide plate 250; further, the rotating sleeve 260 includes a first rotating connection part 262, a pressure-bearing part 264 and a second rotating connection part 266, and the diameter of the first rotating connection part 262 and the diameter of the second rotating connection part 266 are both smaller than the diameter of the pressure-bearing part 264; the first buffer cavity 201 and the second buffer cavity 203 are both formed in the pressure-bearing part 264; the two ends of the rotating sleeve 260 are respectively rotatably connected to the first rotating connection part 262 and the second rotating connection part 266. In this embodiment, the first rotation connection portion 262 is sleeved on the outer ring of the first bearing 270 , and the second rotation connection portion 266 is sleeved on the outer ring of the second bearing 280 .

[0045] As shown in Figures 1 and 6, the oil guide structure 200f further includes a first oil seal 268 and a second oil seal 269. The first oil seal 268 and the second oil seal 269 are both sleeved on the liquid guide plate 250. The first oil seal 268 is located on the side of the first bearing 270 facing away from the second bearing 280, and the second oil seal 269 is located on the side of the second bearing 280 facing away from the first bearing 270. In this embodiment, the first rotating connection part 262 is sleeved on the first oil seal 268, and the second rotating connection part 266 is sleeved on the second oil seal 269. The first rotating connection part 262 is located on the side of the first bearing 270 facing away from the second bearing 280, and the second rotating connection part 266 is located on the side of the second bearing 280 facing away from the first bearing 270, acting as an oil seal. In this embodiment, the first oil seal 268 and the second oil seal 269 are both rubber oil seals, so that the first oil seal 268 and the second oil seal 269 have a good oil sealing effect. And / or,

[0046] As shown in Figures 1 and 6, in one embodiment, the hub mechanism 200 further includes a liquid inlet pipe 200k and a liquid outlet pipe 200j. The liquid inlet pipe 200k is respectively connected to the first buffer chamber 201 and the liquid inlet end 24 of the generator mechanism 20, thereby connecting the first buffer chamber 201 with the liquid inlet end 24 of the generator mechanism 20; the liquid outlet pipe 200j is respectively connected to the second buffer chamber 203 and the liquid outlet end 26 of the generator mechanism 20, thereby connecting the second buffer chamber 203 with the liquid outlet end 26 of the generator mechanism 20. In this embodiment, a pipe gap exists between the liquid guide plate 250 and the connecting shaft 2002, and both the liquid inlet pipe 200k and the liquid outlet pipe 200j are disposed through the pipe gap. In this embodiment, the liquid guide plate 250 is formed with a first installation nozzle and a second installation nozzle. The liquid inlet pipe 200k is connected to the liquid guide plate 250 through the first installation nozzle, and the first installation nozzle is communicated with the first buffer chamber 201. The liquid outlet pipe 200j is connected to the liquid guide plate 250 through the second installation nozzle, and the second installation nozzle is communicated with the second buffer chamber 203. And / or,

[0047] As shown in Figures 1 and 6, in one embodiment, the hub mechanism 200 also includes a plurality of liquid-passing pipes 200m, and the two ends of each liquid-passing pipe 200m are respectively connected to the rotating sleeve 260 and the hub body 200a, and the inner peripheral wall of the rotating sleeve 260 forms a plurality of spaced-apart stabilizing grooves 263, and the two ends of each liquid-passing pipe 200m are respectively connected to the corresponding piston cavity 202 and the corresponding stabilizing groove 263, and each stabilizing groove 263 is used to communicate with the first cache cavity when the hub body 200a rotates to the first predetermined angle position, and to communicate with the second cache cavity when the hub body 200a rotates to the second predetermined angle position, so that each piston cavity 202 is connected to the liquid inlet end 24 of the power generation mechanism 20 when the hub body 200a rotates to the first predetermined angle position, and is connected to the liquid outlet end 26 of the power generation mechanism 20 when the hub body rotates to the second predetermined angle position.

[0048] As shown in Figures 1 and 6, the rotating sleeve 260 is further detachably connected to the wheel hub, thereby improving the ease of use of the wheel hub mechanism 200. Furthermore, the wheel hub mechanism 200 further includes fixing screws 200n. The wheel hub has a mounting hole, and the rotating sleeve 260 has a fixing screw hole. The fixing screws 200n are respectively inserted into the mounting hole and the fixing screw hole, allowing the rotating sleeve 260 to be detachably connected to the wheel hub.

[0049] As shown in Figures 1 and 6, the rotating sleeve 260 further includes a rotating cover plate 260a and a rotating sleeve body 260b. The rotating cover plate 260a is detachably connected to the rotating sleeve body 260b to facilitate assembly and disassembly of the rotating sleeve 260. In this embodiment, a first rotating connection portion 262 is provided on the rotating cover plate 260a, and a second rotating connection portion 266 is provided on the rotating sleeve body 260b. The rotating cover plate 260a is fixedly connected to the wheel hub via fixing screws 200n. A liquid stabilizing tank 263 is formed in the rotating sleeve body 260b, and a liquid flow pipe 200m is connected to the rotating sleeve body 260b. Furthermore, the rotating cover plate 260a is fixedly connected to the rotating sleeve body 260b via locking screws.

[0050] As shown in Figures 6 and 7, the rotating cover plate 260a further defines a connection hole 2603, the rotating sleeve body 260b defines a locking screw hole 2605, and the rotating sleeve 260 further includes a locking screw 260c, which is respectively inserted into the connection hole and the locking screw hole, thereby securing the rotating cover plate 260a to the rotating sleeve body 260b via the locking screw. Furthermore, the rotating sleeve body 260b further defines an annular sealing ring 2607 protruding along its circumference, against which the rotating cover plate 260a abuts, thereby tightly connecting the rotating sleeve body 260b to the rotating cover plate 260a.

[0051] As shown in Figures 1 and 8, the running buffer assembly 100 further includes a tire 110, a fixed convex member 120, an inflatable membrane 130, and an elastic connecting block 140. The tire 110 is formed with an annular receiving groove 102, and the tire 110 is sleeved on the wheel hub, that is, the tire 110 is sleeved on the outer peripheral edge of the wheel hub; there are multiple fixed convex members 120, and the multiple fixed convex members 120 are spaced apart on the inner peripheral wall of the annular receiving groove 102. Each fixed convex member 120 is connected to a piston assembly 200b of a corresponding wheel hub mechanism 200 that is slidably connected to the wheel hub, that is, each fixed convex member 120 is connected to a corresponding piston assembly 200b, so that each piston unit column is used to connect to the running buffer assembly. An inflatable membrane 130 is located within the annular receiving groove 102 and is connected to at least one piston assembly 200b corresponding to each fixed protrusion 120. The inflatable membrane 130 covers the opening of the annular receiving groove 102, thereby enclosing the annular receiving groove 102 into an inflatable cavity 104. Multiple elastic connecting blocks 140 are provided; each elastic connecting block 140 is connected to two adjacent fixed protrusions 120. Each elastic connecting block 140 is also located within the annular receiving groove 102 and connected to the tire 110, forming an elastic deformation zone on the inner circumferential wall of the running cushion assembly. In this embodiment, the elastic deformation zone is formed in each elastic connecting block and tire 110. During use, the inflatable gas injected into the inflatable cavity 104 not only supports the space between the two adjacent fixed protrusions 120, thus enhancing the vibration damping performance of the running cushion assembly 100 and reducing vibration during driving, but also facilitates heat dissipation from the tire 110, making it less prone to air leakage. It is understood that the inflation gas can be nitrogen or other neutral gas. Further, the wheel hub is provided with an inflation nozzle, one end of which is located outside the wheel hub and the other end of which is located in the inflation cavity 104 so as to be inflated through the inflation nozzle.

[0052] Since the tire 110 is sleeved on the hub of the wheel hub mechanism 200, a plurality of fixed convex parts 120 are spaced apart on the inner peripheral wall of the annular receiving groove 102, and each fixed convex part 120 is connected to a corresponding piston assembly 200b which is slidably connected to the wheel hub. When the wheel hub rotates with the rotating shaft, the rotating shaft drives the wheel hub and the tire 110 to rotate, so that the outer peripheral wall of the tire 110 rotates with the wheel hub body to contact the ground, and each elastic connecting block 140 is respectively connected to two adjacent fixed convex parts 120, and each elastic connecting block 140 is also located in the annular receiving groove 102 and connected to the tire 110. Since each elastic connecting block 140 has good deformation performance, the fixed convex part 120 can be fixed to the wheel hub 102. The fixed convex bump 120 better pushes the piston assembly 200b to slide relative to the wheel hub as the tire 110 deforms, thereby achieving a better vibration reduction effect. In addition, the inflatable membrane 130 is located in the annular receiving groove 102, and the inflatable membrane 130 is connected to at least the piston assembly 200b corresponding to each fixed convex bump 120, so as to enclose the annular receiving groove 102 into an inflatable cavity 104. Inflatable gas is injected into the inflatable cavity 104, which can not only support the spatial area of ​​two adjacent fixed convex bumps 120, so that the driving buffer assembly 100 has better vibration reduction and buffering performance and reduces the vibration generated during driving, but also the inflatable gas is conducive to heat dissipation of the tire 110, and is not prone to air leakage.

[0053] As shown in Figures 1 and 8, the inflatable membrane 130 is further connected to the wheel hub 230, so that the inflatable membrane 130 is respectively connected to the wheel hub 230 and the multiple piston assemblies 200b, so that the inflatable membrane 130 can better enclose the annular receiving groove 102 into the inflatable cavity 104. In this embodiment, the inflatable membrane 130 is connected to the outer peripheral wall of the wheel hub 230. The portion where the inflatable membrane 130 is connected to the wheel hub is a fixing portion, and there are multiple fixing portions, so that the inflatable membrane 130 can better enclose the annular receiving groove 102 into the inflatable cavity 104. Furthermore, at least one fixing portion is provided on the inflatable membrane 130 between two adjacent fixing protrusions 120, so that the inflatable membrane 130 can better enclose the annular receiving groove 102 into the inflatable cavity 104.

[0054] As shown in Figures 1, 8, and 9, the inflatable membrane 130 is further detachably connected to the wheel hub 230. In this embodiment, the wheel assembly 10 further includes a plurality of first locking members 300, each of which is fixedly connected to the outer peripheral wall of the wheel hub via a first locking member 300. It is understood that in other embodiments, the locking method is not limited to the first locking members, and other detachable connection methods may also be used.

[0055] Furthermore, the fixed bumps 120 are made of plastic or carbon fiber. Since each elastic connecting block 140 is connected to two adjacent fixed bumps 120, and each elastic connecting block 140 is also located within the annular receiving groove 102 and connected to the tire 110, the tire 110 has good strength between the two adjacent elastic connecting blocks 140, and the strength of each elastic connecting block 140 against compressive deformation is also improved, thereby providing the tire 110 with better cushioning and vibration reduction performance during driving. Since the fixed bumps 120 are made of plastic or hard rubber, the fixed bumps 120 have good support strength, thereby enabling the fixed bumps 120 to better act on the corresponding piston assembly 200b. In this embodiment, each fixed bump 120 is adhesively fixed to the inner wall of the annular receiving groove 102, ensuring that each fixed bump 120 is securely fixed to the tire 110.

[0056] As shown in Figures 1 and 8, further, there is a gap between two adjacent fixed protrusions 120, and the elastic connecting block 140 fills the gap, so that the surface of the tire 110 has better strength between the two adjacent elastic connecting blocks 140, and the strength of each elastic connecting block 140 against compressive deformation is also improved. At the same time, the tire 110 has better cushioning performance during driving, and the thickness of the tire 110 surface is increased, which also improves the tire 110's anti-puncture and air leakage performance.

[0057] As shown in Figures 1 and 8, the elastic connecting block 140 is an elastic rubber block, which makes the elastic connecting block 140 have good elasticity and enables the elastic connecting block 140 to be better connected and fixed to the fixed protruding member 120. In this embodiment, the elastic connecting block 140 can be formed in the gap between two adjacent fixed protruding members 120 through a glue pouring process, so that the elastic connecting block 140 is better fixedly connected to the fixed protruding member 120. And / or,

[0058] As shown in Figures 1 and 8, further, the hardness of the elastic connecting block 140 is less than the hardness of the fixed convex part 120, so that the compressive deformation resistance of the elastic connecting block 140 is less than the compressive deformation resistance of the fixed convex part 120. In addition, the elastic connecting block 140 is respectively connected to two adjacent fixed convex parts 120, which avoids excessive deformation of the elastic connecting block 140 and affects the poor vibration resistance of the wheel device 10 during rolling, and also makes the wheel device 10 more stable during rolling.

[0059] As shown in Figures 1, 8, and 9, each piston assembly 200b further includes a rubber band 310. The piston unit column 220 of each piston assembly 200b is located within the piston hole 204a of the corresponding piston hole group 204 and is slidably connected to the wheel hub. Each fixed protrusion 120 is connected to the rubber band 310 of the corresponding piston assembly 200b, so that each piston assembly 200b is better fixedly connected to the corresponding fixed protrusion 120. The inflatable membrane 130 is connected at least between the rubber band 310 of each piston assembly 200b and the corresponding piston unit column 220, so that the inflatable membrane 130 is reliably fixedly connected to the piston assembly 200b. In this embodiment, each rubber hoop member 310 is formed with an arc-shaped groove 312, and each fixed protrusion member 120 is formed with an arc-shaped protrusion 122. The arc-shaped protrusion of each fixed protrusion member 120 is located in the arc-shaped groove and is connected to the corresponding rubber hoop member 310, so that each rubber hoop member 310 is better connected to the corresponding fixed protrusion member 120, and each fixed protrusion member 120 can better act on the piston through the corresponding rubber hoop member 310.

[0060] As shown in Figures 1, 8, and 9, each piston assembly 200b further includes at least a plurality of fixing screws 330. Each fixing screw 330 securely connects the rubber band 310 to the piston, and the inflatable membrane 130 is compressed and secured between the rubber band 310 and the piston, thereby securing the inflatable membrane 130 between the rubber band 310 of each piston assembly 200b and the corresponding piston. In this embodiment, the rubber band 310 defines a connecting hole 314, the piston defines a threaded hole, and the inflatable membrane 130 defines a through hole. Each fixing screw 330 is respectively disposed within the connecting hole, the through hole, and the threaded hole, thereby securing the inflatable membrane 130 between the rubber band 310 of each piston assembly 200b and the corresponding piston. Specifically, the arc-shaped protrusion of each fixing convex part 120 is formed with a hollow groove 124, and the head of each fixing screw 330 is located in the hollow groove and connected to the arc-shaped protrusion of the corresponding fixing convex part 120, while making the structure of each piston assembly 200b more compact.

[0061] As shown in Figures 1, 2, and 9, the wheel assembly 10 further includes a plurality of vibration damping assemblies 400, each of which is arranged in a one-to-one correspondence with the plurality of piston assemblies 200b. Each vibration damping assembly 400 includes a connecting plate 410, an elastic support assembly 420, and a first elastic stopper 430. The connecting plate 410 of each vibration damping assembly 400 is connected between the rubber band 310 of the corresponding piston assembly 200b and the piston, thereby securing each vibration damping assembly 400 between the rubber band 310 of the corresponding piston assembly 200b and the piston. In this embodiment, the connecting plate 410 of each vibration damping assembly 400 is located on the periphery of the wheel hub and connected between the rubber band 310 of the corresponding piston assembly 200b and the piston. Furthermore, the first elastic limit block 430 of each vibration damping assembly 400 is connected to the outer peripheral wall of the wheel hub, and the elastic support assembly 420 of each vibration damping assembly 400 is arranged between the corresponding connecting plate 410 and the first elastic limit block 430. When the piston slides relative to the wheel hub, the elastic support assembly 420 of each vibration damping assembly 400 is compressed to produce a change in deformation, so that the vibration generated during the sliding process of the piston relative to the wheel hub is smaller. In addition, under the joint action of various components of the running buffer assembly 100, such as the fixed convex part 120 and the inflatable membrane 130, the vibration generated by the running buffer assembly 100 during the rotation process is further reduced, thereby making the piston more stable during the sliding process relative to the wheel hub. In addition, the limiting effect of the first elastic limit block 430 avoids the problem of large impact force caused by direct contact between the connecting plate 410 and the roller.

[0062] As shown in Figures 1 and 2, the elastic support assembly 420 of each vibration damping assembly 400 further includes a fixing plate 422 and an elastic member 424. The fixing plate 422 is mounted on the connecting plate 410, one end of the elastic member 424 is connected to the fixing plate 422, and the other end of the elastic member 424 is connected to the first elastic stop block 430, so that the elastic support assembly 420 of each vibration damping assembly 400 is disposed between the corresponding connecting plate 410 and the first elastic stop block 430. In this embodiment, the connecting plate 410 is provided with a protruding mounting post 412, the fixing plate 422 is sleeved on the mounting post 412, and the elastic member 424 is disposed around the mounting post 412, so that the elastic member 424 has better centering when deformed under pressure, thereby better elastically connecting the elastic support assembly 420 between the corresponding connecting plate 410 and the first elastic stop block 430.

[0063] As shown in Figures 1 and 2, the elastic support assembly 420 of each vibration damping assembly 400 further includes an elastic washer 426. The elastic washer 426 is sleeved on the mounting boss 412, and the fixing plate 422 is fixedly connected to the connecting plate 410 via the elastic washer 426. The end of the elastic member 424 is connected to the fixing plate 422 via the elastic washer 426, so that the fixing plate 422 is more elastically fixedly connected to the connecting plate 410. Under the combined action of the elastic washer 426 and the elastic member 424, the elastic support assembly 420 has better elasticity. Furthermore, the outer peripheral wall of the wheel hub 230 is formed with a mounting slot 233. The first elastic limit block 430 is located in the mounting slot and fixedly connected to the wheel hub. The end of the elastic member 424 is fixedly connected to the elastic support assembly 420. In this embodiment, the first elastic limit block 430 is formed with a buffer groove 435 corresponding to the mounting boss 412, and one end of the elastic member 424 is located in the buffer groove and connected to the first elastic limit block 430. When the elastic support assembly 420 moves to the first limit position relative to the first elastic limit block 430, that is, when the piston moves to the first limit position in the piston cavity 202, the amount of hydraulic fluid in the piston cavity 202 is the least at this time, the mounting boss 412 moves into the buffer groove with the connecting plate 410, and the compression generated by the pressure on the elastic member 424 is the largest, which further reduces the vibration generated during the sliding of the piston relative to the wheel hub, thereby making the tire 110 device more stable during driving.

[0064] As shown in Figures 1 and 2, the first elastic limit block 430 further includes a first elastic limit block body 430a and a buffer pad 430b. A buffer groove 435 is formed in the first elastic limit block body 430a. The buffer pad 430b is located in the buffer groove 435 and is connected to the first elastic limit block body 430a. The buffer pad 430b is connected to the end of the elastic member 424, so that the elastic member 424 is fixedly connected to the first elastic limit block 430. In this embodiment, the buffer pad 430b is glued to the first elastic limit block body 430a, so that the buffer pad 430b is reliably fixed to the first elastic limit block body 430a.

[0065] As shown in Figures 1 and 2, further, a second elastic limit block 202a is protruded from the position of each piston cavity 202 adjacent to the connecting plate 410. The second elastic limit block 202a is arranged corresponding to the piston assembly 200b to limit the sliding position of the piston assembly 200b in the piston cavity 202, thereby avoiding the problem that the piston assembly 200b is easily damaged due to direct collision with the inner cavity of the wheel hub. In addition, the connecting plate 410 of each vibration damping assembly 400 is connected between the rubber hoop 310 and the piston of the corresponding piston assembly 200b, so that the piston assembly 200b can slide reliably in the corresponding piston cavity 202.

[0066] As shown in Figure 1, the present application also provides a power generation device 60, including a power generation mechanism 20 and the above-mentioned wheel device 10, each piston cavity 202 is connected to the liquid inlet end 24 of the power generation mechanism 20 when the wheel hub body rotates to a first predetermined angular position, and is connected to the liquid outlet end 26 of the power generation mechanism 20 when the wheel hub body rotates to a second predetermined angular position.

[0067] In the above-mentioned power generation device 60, each piston cavity 202 is connected to the liquid inlet end 24 of the power generation mechanism 20 when the hub body 200a rotates to the first predetermined angular position, and is connected to the liquid outlet end 26 of the power generation mechanism 20 when the hub body rotates to the second predetermined angular position, so that each piston assembly 200b slides to different positions relative to the hub body 200a as the hub body rotates to different positions, thereby enabling the power generation mechanism 20 to continuously generate electricity; since each piston hole group 204 includes a plurality of piston holes 204a, each piston hole group 204a is connected to the liquid inlet end 24 of the power generation mechanism 20 when the hub body rotates to the second predetermined angular position. A piston cavity 202 is respectively connected to the multiple piston holes 204a of the corresponding piston hole group 204. Since each piston assembly 200b includes a piston plate body 210 and multiple piston unit columns 220, when the wheel hub assembly rolls relative to the ground, the position where the wheel hub assembly contacts the ground is deformed. Since each piston unit column 220 is connected to the travel buffer assembly 100, the deformation generated by the travel buffer assembly 100 pushes the multiple piston unit columns 220 of the corresponding piston assembly 200b to slide relative to the wheel hub body 200a. The piston unit columns 220 are connected to the piston plate body 210 side by side, which reduces the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a. In addition, the piston plate body 210 of each piston assembly 200b is located in the corresponding piston cavity 202 and is slidably connected to the hub body 200a. The multiple piston unit columns 220 correspond to the multiple piston holes 204a of the corresponding piston hole group 204 one by one. Each piston unit column 220 is slidably connected to the hub body 200a, so that the piston plate body of each piston assembly 200b 210 can simultaneously drive multiple piston unit columns 220 to slide relative to the hub body 200a, so that multiple piston unit columns 220 can act on the same piston plate body 210 at the same time. Under the condition of equal power generation power, the surface area required for the circumferentially arranged piston assembly 200b of the hub body 200a is greatly reduced, the volume of the hub body 200a is reduced, and the volume of the wheel device 10 is reduced. That is to say, under the condition of the same hub body volume, the power generation power generated by the hub mechanism during driving is greater.

[0068] As shown in Figures 1 and 10, the power generation mechanism 20 further includes a power generation mechanism main body 20a and a hydraulic drive assembly 20b. The hydraulic drive assembly 20b includes a housing 242 and a hydraulic drive wheel 244. The housing 242 is formed with a hydraulic flow chamber 22, a liquid inlet 24, and a liquid outlet 26. The hydraulic flow chamber 22 is connected to the liquid inlet 24 and the liquid outlet 26, respectively. The hydraulic drive wheel 244 is located within the hydraulic flow chamber 22 and is rotatably connected to the housing 242. The hydraulic drive wheel 244 is also connected to the power input end of the power generation mechanism main body 20a. When hydraulic fluid flows into the power generation mechanism main body 20a through the liquid inlet 24 and flows out through the liquid outlet 26, the hydraulic fluid passes through the hydraulic flow chamber 22 and drives the hydraulic drive wheel 244 to rotate, causing the hydraulic drive wheel 244 to drive the power generation mechanism main body 20a to generate electricity.

[0069] The present application also provides a travel system comprising a rotating shaft, a travel body, and a power generation device 60 according to any of the above embodiments, wherein a hub body 200a is connected to the rotating shaft, which is rotatably connected to the travel body, and a power generation mechanism 20 is provided on the travel body. In this embodiment, the travel body is provided with a suspension 30.

[0070] The above-mentioned travel system includes a rotating shaft, a travel body and a power generation device 60. The hub body 200a is connected to the rotating shaft, which is rotatably connected to the travel body. The power generation mechanism 20 is provided on the travel body. Since each piston cavity 202 is connected to the liquid inlet end 24 of the power generation mechanism 20 when the hub body 200a rotates to a first predetermined angular position, and is connected to the liquid outlet end 26 of the power generation mechanism 20 when the hub body rotates to a second predetermined angular position, each piston assembly 200b is connected to the liquid outlet end 26 of the power generation mechanism 20 when the hub body rotates to different positions relative to the hub body 20. 0a slides to different positions, thereby enabling the power generation mechanism 20 to continuously generate electricity; since each piston hole group 204 includes multiple piston holes 204a, each piston cavity 202 is respectively connected to the multiple piston holes 204a of the corresponding piston hole group 204, and since each piston assembly 200b includes a piston plate body 210 and multiple piston unit columns 220, when the wheel hub assembly rolls relative to the ground, the position where the wheel hub assembly contacts the ground is deformed, and since each piston unit column 220 is connected to the driving buffer assembly 100, the driving buffer assembly 1 The deformation generated by 00 pushes the multiple piston unit columns 220 of the corresponding piston assembly 200b to slide relative to the hub body 200a; the multiple piston unit columns 220 are connected side by side to the piston plate body 210, which reduces the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a, and the piston plate body 210 of each piston assembly 200b is located in the corresponding piston cavity 202 and is slidably connected to the hub body 200a, and the multiple piston unit columns 220 are respectively connected to the multiple piston holes 204a of the corresponding piston hole group 204 one by one. Correspondingly, each piston unit column 220 is slidingly connected to the hub body 200a, so that the piston plate body 210 of each piston assembly 200b can simultaneously drive multiple piston unit columns 220 to slide relative to the hub body 200a, so that multiple piston unit columns 220 can act on the same piston plate body 210 at the same time. Under the condition of the same power generation power, the surface area required for the circumferentially arranged piston assembly 200b of the hub body 200a is greatly reduced, the volume of the hub body 200a is reduced, and the volume of the wheel device 10 is reduced.

[0071] Furthermore, the hub body 200a is provided with a protruding connecting shaft, which is used to connect to the brake disc 40. In this embodiment, the connecting shaft is connected to the rotating shaft through the brake disc 40, and the rotating shaft drives the hub body 200a to rotate through the connecting shaft. The rotating shaft is the driving shaft of the driving system, which is connected to the driving mechanism of the driving system, such as the output of the transmission of the driving system. In this embodiment, the connecting shaft is connected to the connecting disc of the brake disc 40.

[0072] Compared with the prior art, the present invention has at least the following advantages:

[0073] In the hub mechanism 200, each piston cavity 202 is connected to the liquid inlet 24 of the power generation mechanism 20 when the hub body 200a rotates to a first predetermined angular position, and is connected to the liquid outlet 26 of the power generation mechanism 20 when the hub body rotates to a second predetermined angular position. As a result, each piston assembly 200b slides to a different position relative to the hub body 200a as the hub body rotates to different positions, thereby enabling the power generation mechanism 20 to continuously generate electricity. Since each piston hole group 204 includes a plurality of piston holes 204a, Each piston cavity 202 is respectively connected to the multiple piston holes 204a of the corresponding piston hole group 204. Since each piston assembly 200b includes a piston plate body 210 and multiple piston unit columns 220, when the wheel hub assembly rolls relative to the ground, the position where the wheel hub assembly contacts the ground is deformed. Since each piston unit column 220 is connected to the travel buffer assembly 100, the deformation generated by the travel buffer assembly 100 pushes the multiple piston unit columns 220 of the corresponding piston assembly 200b to slide relative to the wheel hub body 200a. The piston unit columns 220 are connected to the piston plate body 210 side by side, which reduces the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a. In addition, the piston plate body 210 of each piston assembly 200b is located in the corresponding piston cavity 202 and is slidably connected to the hub body 200a. The multiple piston unit columns 220 correspond to the multiple piston holes 204a of the corresponding piston hole group 204 one by one. Each piston unit column 220 is slidably connected to the hub body 200a, so that the piston plate body of each piston assembly 200b 210 can simultaneously drive multiple piston unit columns 220 to slide relative to the hub body 200a, so that multiple piston unit columns 220 can act on the same piston plate body 210 at the same time. Under the condition of equal power generation power, the surface area required for the circumferentially arranged piston assembly 200b of the hub body 200a is greatly reduced, the volume of the hub body 200a is reduced, and the volume of the wheel device 10 is reduced. That is to say, under the condition of the same hub body volume, the power generation power generated by the hub mechanism during driving is greater.

[0074] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above-described embodiments only express several implementation methods of the present application, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several variations and improvements can be made, which all fall within the scope of protection of the present application. Therefore, the scope of protection of the patent in this application shall be based on the attached claims.

Claims

1. A hub mechanism for sleeve-mounted travel buffer components, characterized in that: The hub mechanism comprises: A wheel hub body, wherein the wheel hub body is provided with a plurality of piston cavities and a plurality of piston hole groups, each of the piston hole groups includes a plurality of piston holes, and each of the piston cavities is respectively communicated with the plurality of piston holes of the corresponding piston hole group; an outer peripheral wall of the wheel hub body is used for sleeve-mounting the travel buffer assembly; Multiple piston assemblies, each of the piston assemblies includes a piston plate body and multiple piston unit columns, multiple piston unit columns are connected to the piston plate body side by side, the piston plate body of each piston assembly is located in the corresponding piston cavity and is slidingly connected to the wheel hub body, multiple piston unit columns are respectively arranged in a one-to-one correspondence with the multiple piston holes of the corresponding piston hole group, each piston unit column is slidingly connected to the wheel hub body, and each piston unit column is used to be connected to the travel buffer assembly; each piston cavity is used to communicate with the liquid inlet end of the power generation mechanism when the wheel hub body rotates to a first predetermined angular position, and to communicate with the liquid outlet end of the power generation mechanism when the wheel hub rotates to a second predetermined angular position.

2. The hub mechanism according to claim 1, characterized in that: A positioning groove is formed on the inner circumferential wall of each piston hole of each piston hole group. The hub mechanism also includes multiple piston ring groups, each piston ring group includes multiple piston rings, and the multiple piston rings of each piston ring group are arranged in the corresponding positioning groove of each piston hole of the corresponding piston hole group.

3. The hub mechanism according to claim 1, characterized in that: The plurality of piston unit columns of each piston assembly are arranged side by side at the same radial cross section on the outer peripheral wall of the hub body.

4. The hub mechanism according to claim 1, characterized in that: The outer peripheral wall of the piston plate body of each piston unit is provided with a sealing oil scraping ring, and the sealing oil scraping ring is slidably connected to the inner peripheral wall of the piston cavity.

5. The hub mechanism according to claim 1, characterized in that: The wheel hub body includes a wheel hub and an annular cover plate. The outer peripheral wall of the wheel hub is formed with a mounting ring groove, and the mounting ring groove is used to sleeve the running buffer assembly; The wheel hub is provided with a plurality of piston slots and a plurality of piston hole groups, and the annular cover plate is arranged on the inner peripheral wall of the wheel hub to enclose a plurality of piston cavities.

6. The hub mechanism according to claim 5, characterized in that: A relief groove is formed on one side of the wheel hub, and the mounting ring groove is formed on the inner peripheral wall of the relief groove.

7. The hub mechanism according to claim 5, characterized in that: The annular cover plate is detachably connected to the inner peripheral wall of the wheel hub, and the annular cover plate is tightly connected to the inner peripheral wall of the wheel hub.

8. The hub mechanism according to claim 7, characterized in that: The hub mechanism further includes a plurality of locking members, the annular cover plate is provided with a plurality of mounting holes, the inner peripheral wall of the hub is formed with a plurality of threaded holes, and each of the locking members is respectively inserted into the corresponding mounting hole and the corresponding threaded hole.

9. The hub mechanism according to claim 5, characterized in that: The inner peripheral wall of the annular cover plate is provided with a plurality of communication grooves, and the plurality of communication grooves are in one-to-one communication with the plurality of piston groove bodies.

10. The hub mechanism according to claim 9, characterized in that: The inner peripheral wall of the annular cover plate is further formed with a plurality of sealing ring grooves, and the hub mechanism further comprises a plurality of sealing rings, each of the sealing ring grooves being arranged around the corresponding communicating groove, and the plurality of sealing rings are respectively protruded in the corresponding sealing ring grooves.

11. The hub mechanism according to claim 1, characterized in that: The wheel hub mechanism also includes an oil guide structure, which includes a liquid guide plate and a rotating sleeve. The liquid guide plate is used to be installed on the suspension, and the rotating sleeve is connected to the wheel hub body. The rotating sleeve is rotatably connected to the liquid guide plate. There is a liquid sealing gap between the rotating sleeve and the liquid guide plate. The liquid guide plate is formed with a first cache cavity and a second cache cavity. The first cache cavity and the second cache cavity are both communicated with the liquid sealing gap. The first cache cavity is used to communicate with the liquid inlet end of the power generation mechanism, and the second cache cavity is used to communicate with the liquid outlet end of the power generation mechanism. Each of the piston cavities is used to communicate with the first cache cavity when the wheel hub body rotates to a first predetermined angular position, and to communicate with the second cache cavity when the wheel hub body rotates to a second predetermined angular position.

12. The hub mechanism according to claim 11, characterized in that: The liquid guide plate is formed with an avoidance hole, the hub body is protruded with a connecting shaft, the connecting shaft is passed through the avoidance hole, and the connecting shaft is used to be connected to the brake disc.

13. The hub mechanism according to claim 12, characterized in that: The hub body is detachably connected to the connecting shaft.

14. The hub mechanism according to claim 12, characterized in that: The oil guide structure also includes a first bearing and a second bearing. The inner rings of the first bearing and the second bearing are both sleeved on the liquid guide plate, and the two ends of the rotating sleeve are respectively sleeved on the outer rings of the first bearing and the second bearing.

15. The hub mechanism according to claim 14, characterized in that: The oil guide structure also includes a first oil seal and a second oil seal. The first oil seal and the second oil seal are both sleeved on the liquid guide plate. The first oil seal is located on the side of the first bearing away from the second bearing, and the second oil seal is located on the side of the second bearing away from the first bearing.

16. The hub mechanism according to claim 12, wherein: The rotating sleeve includes a first rotating connection part, a pressure-bearing part and a second rotating connection part. The diameter of the first rotating connection part and the diameter of the second rotating connection part are both smaller than the diameter of the pressure-bearing part; the first buffer cavity and the second buffer cavity are both formed in the pressure-bearing part; the two ends of the rotating sleeve are respectively rotatably connected to the first rotating connection part and the second rotating connection part.

17. The hub mechanism according to claim 12, characterized in that: The hub mechanism further includes a liquid inlet pipe and a liquid outlet pipe, wherein the liquid inlet pipe is respectively connected to the first buffer chamber and the liquid inlet end of the power generation mechanism, and the liquid outlet pipe is respectively connected to the second buffer chamber and the liquid outlet end of the power generation mechanism.

18. The hub mechanism according to claim 17, characterized in that: There is a tube gap between the liquid guide plate and the connecting shaft, and the liquid inlet pipe and the liquid outlet pipe are both arranged in the tube gap; the liquid guide plate is formed with a first installation pipe opening and a second installation pipe opening, the liquid inlet pipe is connected to the liquid guide plate through the first installation pipe opening, and the first installation pipe opening is communicated with the first cache cavity, the liquid outlet pipe is connected to the liquid guide plate through the second installation pipe opening, and the second installation pipe opening is communicated with the second cache cavity.

19. The hub mechanism according to claim 12, wherein: The hub mechanism also includes a plurality of liquid-passing tubes, the two ends of each of the liquid-passing tubes being respectively connected to the rotating sleeve and the hub body, the inner circumferential wall of the rotating sleeve forming a plurality of spaced-apart stabilizing grooves, the two ends of each of the liquid-passing tubes being respectively communicated with the corresponding piston cavity and the corresponding stabilizing groove, each of the stabilizing grooves being used to communicate with the first cache cavity when the hub body rotates to a first predetermined angular position, and to communicate with the second cache cavity when the hub body rotates to a second predetermined angular position.

20. The hub mechanism according to claim 19, wherein: The rotating sleeve is detachably connected to the wheel hub.

21. The hub mechanism according to claim 20, characterized in that: The hub mechanism further includes a fixing screw. The hub is provided with a mounting through hole, and the rotating sleeve is provided with a fixing screw hole. The fixing screw is respectively passed through the mounting through hole and the fixing screw hole.

22. The hub mechanism according to claim 21, characterized in that: The rotating sleeve includes a rotating cover and a rotating sleeve body, and the rotating cover is detachably connected to the rotating sleeve body; the first rotating connection part is provided on the rotating cover, and the second rotating connection part is provided on the rotating sleeve body; the rotating cover is fixedly connected to the wheel hub by the fixing screw; the stabilizing liquid tank is formed on the rotating sleeve body, and the liquid passing pipe is connected to the rotating sleeve body.

23. The hub mechanism according to claim 22, characterized in that: The rotating cover plate is provided with a connecting through hole, the rotating sleeve body is provided with a locking screw hole, and the rotating sleeve further comprises a locking screw, which is respectively passed through the connecting through hole and the locking screw hole.

24. The hub mechanism according to claim 22, wherein: The rotating sleeve body is provided with an annular sealing ring protruding along the circumferential direction, and the rotating cover plate abuts against the annular sealing ring.

25. A wheel device, characterized in that: It comprises a running buffer assembly and a wheel hub mechanism according to any one of claims 1 to 24, wherein the inner peripheral wall of the running buffer assembly is formed with an elastic deformation portion, the outer peripheral wall of the wheel hub body is sleeved on the running buffer assembly, and each of the piston unit columns is connected to the elastic deformation portion.

26. The wheel device according to claim 25, characterized in that The running buffer assembly includes a tire, a fixed convex part, an inflatable membrane and an elastic connecting block; the tire is formed with an annular receiving groove, and the tire is sleeved on the wheel hub; there are multiple fixed convex parts, and multiple fixed convex parts are arranged at intervals on the inner circumferential wall of the annular receiving groove, each of the fixed convex parts is connected to the piston assembly of the corresponding wheel hub mechanism that is slidably connected to the wheel hub, the inflatable membrane is located in the annular receiving groove, and the inflatable membrane is connected to at least the piston assembly corresponding to each fixed convex part, and there are multiple elastic connecting blocks; each elastic connecting block is respectively connected to two adjacent fixed convex parts, and each elastic connecting block is also located in the annular receiving groove and connected to the tire, so that the inner circumferential wall of the running buffer assembly is formed with an elastic deformation zone.

27. The wheel device according to claim 26, characterized in that The inflatable membrane is also connected to the wheel hub.

28. The wheel device according to claim 27, characterized in that The inflatable membrane is also detachably connected to the wheel hub.

29. The wheel device according to claim 26, characterized in that The fixing protrusion is a plastic part or a carbon fiber part.

30. The wheel device according to claim 26, characterized in that There is a gap between two adjacent fixing protrusions, and the elastic connecting block fills the gap.

31. The wheel device according to claim 26, characterized in that The elastic connecting block is an elastic rubber block.

32. The wheel device according to claim 26, characterized in that The hardness of the elastic connection block is smaller than the hardness of the fixing convex part.

33. The wheel device according to claim 26, characterized in that Each of the piston assemblies also includes a rubber hoop, and the piston unit column of each of the piston assemblies is located in the piston hole of the corresponding piston hole group and is slidingly connected to the wheel hub; each of the fixed protrusions is connected to the rubber hoop of the corresponding piston assembly, and the inflatable membrane is at least connected between the rubber hoop of each of the piston assemblies and the corresponding piston unit column.

34. The wheel device according to claim 33, characterized in that Each of the piston assemblies further comprises at least a plurality of fixing screws, each of the fixing screws fixedly connects the rubber band to the piston, and the inflatable membrane is compressed and fixed between the rubber band and the piston.

35. The wheel device according to claim 33, characterized in that The wheel device also includes multiple vibration damping assemblies, and the multiple vibration damping assemblies are arranged in a one-to-one correspondence with the multiple piston assemblies; each of the vibration damping assemblies includes a connecting plate, an elastic support assembly and a first elastic limit block, and the connecting plate of each vibration damping assembly is connected between the rubber hoop of the corresponding piston assembly and the piston, and the connecting plate of each vibration damping assembly is located on the periphery of the wheel hub and connected between the rubber hoop of the corresponding piston assembly and the piston; the first elastic limit block of each vibration damping assembly is connected to the outer peripheral wall of the wheel hub, and the elastic support assembly of each vibration damping assembly is arranged between the corresponding connecting plate and the first elastic limit block.

36. The wheel device according to claim 35, characterized in that The elastic support assembly of each vibration damping assembly includes a fixing plate and an elastic member. The fixing plate is installed on the connecting plate. One end of the elastic member is connected to the fixing plate, and the other end of the elastic member is connected to the first elastic limiting block.

37. The wheel device according to claim 36, characterized in that The elastic support assembly of each vibration damping assembly also includes an elastic gasket, which is sleeved on the mounting boss, and the fixing plate is fixedly connected to the connecting plate through the elastic gasket, and the end of the elastic member is connected to the fixing plate through the elastic gasket.

38. The wheel device according to claim 36, characterized in that An installation slot is formed on the outer peripheral wall of the wheel hub. The first elastic limiting block is located in the installation slot and fixedly connected to the wheel hub. The end of the elastic member is fixedly connected to the elastic support assembly.

39. The wheel device according to claim 36, characterized in that The first elastic limit block includes a first elastic limit block body and a buffer pad, the buffer groove is formed in the first elastic limit block body, the buffer pad is located in the buffer groove and connected to the first elastic limit block body, and the buffer pad is connected to the end of the elastic member.

40. The wheel device according to claim 36, characterized in that A second elastic limiting block is protruded from a position adjacent to the connecting plate of each piston cavity, and the second elastic limiting block is correspondingly arranged to the piston assembly.

41. A power generation device, characterized in that: A wheel device comprising a power generating mechanism and any one of claims 25 to 40, wherein each piston cavity is connected to the liquid inlet end of the power generating mechanism when the wheel hub rotates to a first predetermined angular position, and is connected to the liquid outlet end of the power generating mechanism when the wheel hub rotates to a second predetermined angular position.

42. The power generation equipment according to claim 41, wherein the power generation mechanism includes a power generation mechanism body and a hydraulic drive component, the hydraulic drive component includes a casing and a hydraulic drive wheel, the casing is formed with a hydraulic flow chamber, a liquid inlet end and a liquid outlet end, the hydraulic flow chamber is respectively connected to the liquid inlet end and the liquid outlet end, the hydraulic drive wheel is located in the hydraulic flow chamber and is rotatably connected to the casing, and the hydraulic drive wheel is also connected to the power input end of the power generation mechanism body.

43. A driving system, characterized in that: The vehicle comprises a rotating shaft, a traveling body, and the power generation device according to claim 41 or 42, wherein the hub body is connected to the rotating shaft, the rotating shaft is rotatably connected to the traveling body, and the power generation mechanism is provided on the traveling body; The wheel device also includes multiple vibration damping assemblies, and the multiple vibration damping assemblies are arranged in a one-to-one correspondence with the multiple piston assemblies; each vibration damping assembly includes a connecting plate, an elastic support assembly and a first elastic limit block, and the connecting plate of each vibration damping assembly is connected between the rubber hoop and the piston of the corresponding piston assembly.

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