Hub mechanism, wheel device, power generation device, and traveling system

Abstract

The present invention relates to a hub mechanism for connecting a running buffer device. The mechanism has a structure including a hub body and a plurality of piston assemblies. The hub body is provided with a plurality of piston chambers and a plurality of piston hole groups. Each piston hole group is composed of a plurality of piston holes, and each piston chamber communicates with the plurality of piston holes in the corresponding piston hole group. The outer peripheral wall of the hub body is configured for connecting the running buffer device. Each piston assembly is composed of a piston plate and a plurality of piston units. The plurality of piston units are connected in parallel to the piston plate, and the piston plate of each piston assembly is disposed in the corresponding piston chamber and is slidably connected to the hub body. The plurality of piston units respectively fit one-to-one with the plurality of piston holes in the corresponding piston hole group, and each piston unit is slidably connected to the hub body and is configured to be connected to the running buffer device. Each piston chamber is configured to communicate with the fluid inlet end of the power generation mechanism when the hub body rotates to reach the first predetermined angular position, and further communicate with the fluid outlet end of the power generation mechanism when the hub body rotates to reach the second predetermined angular position.

Description

Technical Field

[0001] The present invention relates to a hub mechanism, a wheel device, a power generation device, and a running system.

Background Art

[0002] Running systems are classified into automobiles, trucks, electric vehicles, motorcycles, etc. For example, automobiles are classified into types such as gasoline vehicles, gas vehicles, and electric vehicles based on the energy of their power conversion. In the initial use stage of automobiles, the wheels imitated the wheels of trains, and the wheels were pure metal wheels (for example, steel wheels). Since such wheels hardly deform when running on the ground, there is no energy loss due to wheel deformation during running. However, such wheels had a problem of large vibration during running and lack of comfort.

[0003] To solve this problem, tires have been attached to the wheels in all types of automobiles. As a result, the vibration can be absorbed by the deformation of the tire of the wheel, and the comfort can be improved. With this structure, automobiles can meet the requirements of damping and comfort, but on the other hand, a problem of large driving force loss has occurred. That is, in order to solve the problems of vibration and comfort, the energy loss generated by the deformation of the tire has come to account for a large proportion of the driving force loss. In addition, since the energy of automobiles is used not only for power conversion but also for lighting, cooling of the in-vehicle air conditioner, external power supply, etc., the energy consumption requirement of automobiles is very large.

[0004] In order to alleviate the energy consumption requirement of automobiles, a power generation mechanism has been added to the running system so that power generation can be performed simultaneously during running. For example, it is the technology described in Patent Document CN102358184A.

[0005] However, the hub of the above-described traveling system has a problem in that the volume increases under the condition of ensuring equivalent power generation capacity, the wheel device becomes heavy, and the overall mobility decreases.

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of the present invention is to provide a hub mechanism, a wheel device, a power generation device, and a traveling system for the purpose of miniaturizing the wheel device.

[0007] The present invention relates to a hub mechanism for fitting into a traveling buffer device, and the hub mechanism includes the following.

[0008] A hub body, on which a plurality of piston chambers and a plurality of piston hole groups are provided. Each piston hole group includes a plurality of piston holes, and each piston chamber communicates with a plurality of piston holes in the corresponding piston hole group. The outer peripheral wall of the hub body is configured to connect the traveling buffer device.

[0009] A plurality of piston assemblies. Each piston assembly is composed of a piston plate and a plurality of piston units. The plurality of piston units are connected to the piston plate in parallel. The piston plate of each piston assembly is disposed in the corresponding piston chamber and is slidably connected to the hub body. Also, the plurality of piston units respectively correspond one-to-one with a plurality of piston holes in the corresponding piston hole group. Each piston unit is slidably connected to the hub body and is configured to be connected to the traveling buffer device. Each piston chamber is configured to communicate with the fluid inlet end of the power generation mechanism when the hub body rotates and reaches a first predetermined angular position, and to communicate with the fluid outlet end of the power generation mechanism when the hub body reaches a second predetermined angular position.

[0010] It includes a wheel device, a running buffer device, and the above-mentioned hub mechanism. An elastic deformation part is formed on the inner peripheral wall of the running buffer device. The outer peripheral wall of the hub body is fitted into the running buffer device, and each piston unit column is connected to the corresponding elastic deformation part.

[0011] It includes a power generation device, a power generation mechanism, and the above-mentioned wheel device. Each piston chamber is configured to communicate with the fluid inlet end of the power generation mechanism when the hub body rotates to reach the first predetermined angular position, and to communicate with the fluid outlet end of the power generation mechanism when it reaches the second predetermined angular position.

[0012] The running system includes a rotating shaft, a running main body, and the above-mentioned power generation device. The hub body is connected to the rotating shaft, the rotating shaft is rotatably connected to the running main body, and the power generation mechanism is provided on the running main body.

[0013] The wheel device includes a plurality of damping assemblies, and each damping assembly corresponds one-to-one to a piston assembly. Each damping assembly includes a connecting plate, an elastic support assembly, and a first elastic limiting block, and each connecting plate is connected between the elastic band member of the corresponding piston assembly and the piston.

[0014] Details of one or more embodiments of the present invention are presented in the following drawings and description. Other features, objectives, and advantages of the present invention will become apparent from the specification, drawings, and claims.

Brief Description of the Drawings

[0015] To more clearly explain the technical content in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art are briefly introduced below. The accompanying drawings described below show some embodiments of the present invention, and for those skilled in the art, it is possible to obtain the accompanying drawings of other embodiments based on these accompanying drawings without creative effort.

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Embodiments for Carrying Out the Invention

[0016] To make the present invention easier to understand, the present invention will be described in more detail below with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention, but the present invention is not limited to the embodiments described herein. Rather, these embodiments are provided to more thoroughly and comprehensively understand the disclosure of the present invention. Note that when described as "fixed", it includes cases where the component is directly fixed to another component, but also includes cases where intermediate components exist. Also, when described as "connected", it includes cases where it is directly connected, as well as cases where it is connected via an intermediate component. Furthermore, terms such as "vertical", "horizontal", "left", and "right" are used for convenience of explanation, and the present invention is not limited to these directions. Also, unless otherwise defined, all technical terms and scientific terms used in this specification shall have the meanings commonly understood by those of ordinary skill in the technical field of the present invention. The terms used in this specification are for explaining specific embodiments and are not intended to limit the present invention. Furthermore, the term "and / or" used in this specification shall include any combination and all combinations of the listed related items.

[0017] To better understand the technical content of the present invention and its beneficial effects, the present invention will be described in more detail below with reference to specific examples.

[0018] As shown in FIGS. 1 and 2, the wheel device 10 of the present embodiment includes a running buffer device 100 and a hub mechanism 200. The hub mechanism 200 is fitted to the running buffer device 100, and by fitting the outer peripheral wall of the hub mechanism 200 to the running buffer device 100, the running buffer device 100 is attached to the outer peripheral wall of the hub mechanism 200. The hub mechanism 200 includes a hub body 200a and a plurality of piston assemblies 200b. The hub body 200a is provided with a plurality of piston chambers 202 and a plurality of piston hole groups 204. Each piston hole group 204 includes a plurality of piston holes 204a, and each piston chamber 202 communicates with the plurality of piston holes 204a in the corresponding piston hole group 204. Further, the outer peripheral wall of the hub body 200a is configured to fit the running buffer device 100, whereby the running buffer device 100 is attached to the outer peripheral wall of the hub body 200a.

[0019] Furthermore, each piston assembly 200b includes a piston plate 210 and a plurality of piston unit columns 220. The plurality of piston unit columns 220 are connected to the piston plate 210 in parallel. The piston plate 210 of each piston assembly 200b is located within the corresponding piston chamber 202 and is slidably connected to the hub body 200a. Further, the plurality of piston unit columns 220 respectively correspond one-to-one to the plurality of piston holes 204a of the corresponding piston hole group 204. Each piston unit column 220 is slidably connected to the hub body 200a and is connected to the traveling buffer device 100. In this embodiment, an elastic deformation region is formed on the inner peripheral wall of the traveling buffer device 100, and each piston unit column 220 is connected to this elastic deformation region. When the traveling buffer device 100 rolls on the ground, the portion of the traveling buffer device 100 in contact with the ground deforms, and the elastic deformation region deforms. It should be noted that "plurality" in this embodiment means two or more, including the case of two. Each piston unit column 220 may be directly connected to the elastic deformation region or indirectly connected. In this embodiment, each piston unit column 220 is indirectly connected to the elastic deformation region. The plurality of piston chambers 202 are arranged at intervals in the circumferential direction of the hub body 200a, and the plurality of piston chambers 202 correspond one-to-one to the plurality of piston hole groups 204.

[0020] When the traveling buffer device 100 contacts the ground and rolls, the portion of the traveling buffer device 100 in contact with the ground deforms, and the elastic deformation region of the traveling buffer device 100 deforms under pressure, whereby the adjacent piston assembly 200b slides relative to the hub body 200a. Specifically, the plurality of piston unit columns 220 within the piston assembly 200b slide relative to the hub body 200a. In the process of the hub body 200a continuously rolling on the ground, each piston assembly 200b reciprocates slidably relative to the hub body 200a periodically. As a result, the hydraulic fluid in the piston chamber 202 is compressed periodically, the hydraulic fluid is pushed out from one piston chamber 202, and the hydraulic fluid periodically flows into the other piston chamber 202.

[0021] Furthermore, each piston chamber 202 is configured to communicate with the fluid inlet end 24 of the power generation mechanism 20 when the hub body 200a rotates to the first predetermined angular position, and to communicate with the fluid outlet end 26 of the power generation mechanism 20 when the hub body 200a rotates to the second predetermined angular position. With this configuration, the hydraulic fluid in the piston chamber 202 flows out to the fluid inlet end 24 of the power generation mechanism 20 when the hub body 200a reaches the first predetermined angular position, and when the hub body 200a reaches the second predetermined angular position, the hydraulic fluid is pushed back into the piston chamber 202 through the fluid outlet end 26 of the power generation mechanism 20. In this way, the hydraulic fluid circulates through the power generation mechanism 20, driving the power generation mechanism 20 to generate electricity.

[0022] The above-described wheel device 10 and its hub mechanism 200 are configured such that each piston chamber 202 communicates with the fluid inlet end 24 of the power generation mechanism 20 at a first predetermined angular position and with the fluid outlet end 26 of the power generation mechanism 20 at a second predetermined angular position as the hub body 200a rotates. For this reason, each piston assembly 200b moves to different positions as the hub body 200a rotates and slides with respect to the hub body 200a, enabling the power generation mechanism 20 to continuously generate electricity. Each piston hole group 204 includes a plurality of piston holes 204a, and each piston chamber 202 communicates with the plurality of piston holes 204a of the corresponding piston hole group 204, respectively. Each piston assembly 200b is composed of a piston plate 210 and a plurality of piston unit columns 220. When the hub mechanism rolls on the ground, the contact portion between the hub mechanism and the ground deforms, and this deformation presses the plurality of piston unit columns 220 of the piston assembly 200b via the traveling buffer device 100 and slides them with respect to the hub body 200a. The plurality of piston unit columns 220 are connected to the piston plate 210 in parallel, thereby reducing the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a. The piston plate 210 of each piston assembly 200b is located within the corresponding piston chamber 202 and is slidably connected to the hub body 200a. The plurality of piston unit columns 220 correspond one-to-one with the plurality of piston holes 204a of the corresponding piston hole group 204, and each piston unit column 220 is slidably connected to the hub body 200a. With this configuration, the piston plate 210 of each piston assembly 200b can simultaneously slide the plurality of piston unit columns 220 with respect to the hub body 200a, and the plurality of piston unit columns 220 act on the same piston plate 210 simultaneously. For this reason, even when ensuring the same power generation capacity, the surface area required for the piston assemblies 200b arranged in the circumferential direction of the hub body 200a can be significantly reduced. As a result, the overall volume of the hub body 200a is reduced, and the volume of the wheel device 10 also decreases. That is, under the condition of the same volume of the hub body, the power generation capacity generated by the hub mechanism during traveling is improved, and the power performance of the hub mechanism is enhanced.

[0023] 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. The hub mechanism 200 further includes a plurality of piston ring assemblies 200c. Each piston ring assembly 200c includes a plurality of piston rings 2002, and the plurality of piston rings 2002 included in each piston ring assembly 200c are arranged in the positioning groove 2042 of each piston hole 204a in the corresponding piston hole group 204. With this configuration, each piston unit column 220 is in close contact and slidably connected within the corresponding piston hole 204a, and the problem of liquid leakage can be effectively prevented.

[0024] As shown in FIGS. 1 and 2, in one embodiment, a plurality of piston unit columns 220 of each piston assembly are arranged in parallel within the same radial cross-section on the outer peripheral wall of the hub body 200a. That is, a plurality of piston unit columns 220 of the same piston assembly 200b are arranged in a direction perpendicular to the direction of the outer peripheral wall of the hub body 200a and the tangential direction of the outer peripheral wall of the hub body 200a. A plurality of piston unit columns 220 of the same piston assembly 200b are arranged in parallel along the radial width direction of the hub body 200a. With this configuration, the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a is reduced. Further, with this arrangement, the piston plate 210 of each piston assembly 200b can simultaneously and efficiently slide a plurality of piston unit columns 220. Thereby, a plurality of piston unit columns 220 act on the same piston plate 210 simultaneously. For this reason, under the condition of equivalent power generation capacity, the surface area required by the piston assemblies 200b arranged in the circumferential direction of the hub body 200a can be minimized, and the volume of the hub body 200a is significantly reduced. Thereby, the volume of the entire wheel device 10 is also reduced. In this embodiment, the radial cross-section is a cross-section including a diameter passing through the outer peripheral wall of the hub body 200a, and this radial cross-section includes the rotational central axis of the hub body. Also, a plurality of piston unit columns 220 of each piston assembly are arranged in parallel within the same radial cross-section on the outer peripheral wall of the hub body 200a, and their parallel direction is parallel to the central axis of the hub body. Further, a plurality of piston hole groups 204 are evenly arranged in the circumferential direction of the hub body, whereby a plurality of piston assemblies are arranged at different positions in the circumferential direction of the hub body 200a.

[0025] As shown in FIGS. 1 and 2, a seal oil scraper ring 212 is provided on the outer peripheral wall of the piston plate 210 of each piston assembly 200b. The seal oil scraper ring 212 is slidably connected to the inner peripheral wall of the piston chamber 202, whereby the piston plate 210 of each piston assembly 200b is in close contact with the piston chamber 202 and is slidably connected. In an embodiment, the seal oil scraper ring 212 may be made of a material such as a silicon ring or a carbon fiber ring.

[0026] As shown in FIGS. 1 and 2, in an embodiment, the hub body 200a includes a hub 230 and an annular cover plate 240. An attachment ring groove 232 is formed on the outer peripheral wall of the hub 230, and the attachment ring groove 232 is configured to fit the running buffer device 100. Further, all of the plurality of piston hole groups 204 are provided in the hub 230. Furthermore, a plurality of piston slots 206 are provided in the hub 230, and the annular cover plate 240 is attached so as to cover the inner peripheral wall of the hub 230, whereby a structure in which a plurality of piston chambers 202 are surrounded is formed. In this embodiment, a relief groove 234 is formed on one side of the hub 230, and the attachment ring groove 232 is provided on the inner peripheral wall of the relief groove 234. With this configuration, the annular cover plate 240 is attached to the inner peripheral wall of the relief groove 234 of the hub 230, the occupied space of the annular cover plate 240 is reduced, and the structure of the hub mechanism 200 becomes more compact. In an embodiment, the side where the relief groove 234 of the hub 230 is provided is arranged adjacent to the suspension 30.

[0027] As shown in FIGS. 1 and 2, in one embodiment, the annular cover plate 240 is detachably connected to the inner peripheral wall of the hub 230. Further, the annular cover plate 240 is connected in close contact with the inner peripheral wall of the hub 230, which facilitates the disassembly and maintenance of the hub mechanism 200 and improves the convenience of the hub mechanism 200. In this embodiment, the hub mechanism 200 further includes a plurality of locking members 200d. A plurality of mounting through holes 242 are formed in the annular cover plate 240, and a plurality of threaded holes 231 are provided in the inner peripheral wall of the hub 230. Each locking member 200d is installed through the corresponding mounting through hole 242 and threaded hole 231, whereby the annular cover plate 240 is detachably connected to the inner peripheral wall of the hub 230.

[0028] As shown in FIGS. 1 and 2, in one embodiment, a plurality of communication grooves 246 are provided in the outer peripheral wall of the annular cover plate 240. The plurality of communication grooves 246 communicate one-to-one with the plurality of piston slots 206, whereby the plurality of piston chambers 202 are formed more effectively. Referring also to FIGS. 3 to 5, further, a plurality of seal ring grooves 245 are provided in the outer peripheral wall of the annular cover plate 240. The hub mechanism 200 further includes a plurality of seal rings 200e, and each seal ring groove 245 is formed so as to surround the corresponding communication groove 246. The plurality of seal rings 200e are respectively arranged so as to protrude into the corresponding seal ring grooves 245, whereby a structure is formed to prevent liquid leakage in the piston chamber 202. With this configuration, the annular cover plate 240 is connected in close contact with the inner peripheral wall of the hub 230, realizing higher sealing performance.

[0029] As shown in FIGS. 1 and 6, in one embodiment, the hub mechanism 200 includes an oil introduction structure 200f. The oil introduction structure 200f includes an oil plate 250 and a rotating sleeve 260. The oil plate 250 is a structure attached to the suspension 30, and the rotating sleeve 260 is connected to the hub body 200a. The rotating sleeve 260 is rotatably connected to the oil plate 250, and there is a liquid sealing gap 255 between the rotating sleeve 260 and the oil plate 250. The oil plate 250 is formed with a first buffer chamber 201 and a second buffer chamber 203, and both the first buffer chamber 201 and the second buffer chamber 203 communicate with the liquid sealing gap 255. The first buffer chamber 201 communicates with the fluid inlet end 24 of the power generation mechanism 20, and the second buffer chamber 203 is configured to communicate with the fluid outlet end 26 of the power generation mechanism 20. Each piston chamber 202 is configured to communicate with the first buffer chamber 201 when the hub body 200a rotates to a first predetermined angular position and to communicate with the second buffer chamber 203 when it rotates to a second predetermined angular position. As a result, each piston chamber 202 communicates with the fluid inlet end 24 of the power generation mechanism 20 when the hub body 200a reaches the first predetermined angular position and communicates with the fluid outlet end 26 of the power generation mechanism 20 when it reaches the second predetermined angular position. In this embodiment, the oil plate 250 is fixed to the suspension 30 and is stationary relative to the suspension 30. On the other hand, the rotating sleeve 260 is connected to the hub body 200a, and the oil plate 250 and the rotating sleeve 260 are relatively rotatable structures. With this configuration, the oil introduction structure can guide the hydraulic fluid in the piston chamber 202 to the power generation mechanism 20 and return the hydraulic fluid of the power generation mechanism 20 to the piston chamber 202. Therefore, it is not necessary to integrate the power generation mechanism 20 into the hub mechanism 200, and in particular, it is possible to reduce the volume of the hub body 200a. Specifically, the oil introduction structure is arranged in the relief groove, and the power generation mechanism 20 is attached to the vehicle body frame.As can be understood, the gap of the liquid-sealed gap 255 is very small. When the hydraulic fluid is present in the first buffer chamber 201 or the second buffer chamber 203, although a part of the hydraulic fluid may enter the liquid-sealed gap 255, the flow is restricted due to the small gap, and a film layer that blocks the flow is formed. With this structure, it is possible to prevent the hydraulic pressures of two adjacent piston assemblies 200b from affecting each other due to leakage or flow of the hydraulic fluid. The oil plate 250 is fixed to the suspension 30 via the fixed clamp 253. In this embodiment, one end of the fixed clamp is fitted to the oil plate 250, and the other end is fixed to the suspension 30.

[0030] As shown in FIGS. 1 and 6, in one embodiment, a relief hole 254 is formed in the oil plate 250. A protruding connecting shaft 2002 is provided on the hub body 200a, and this connecting shaft is structured to penetrate the relief hole 254. The connecting shaft is configured to connect to the brake disk 40. In this embodiment, the connecting shaft is attached to the connecting flange of the brake disk 40. The connecting shaft is connected to a rotating shaft (not shown) via the brake disk 40, and drives the hub body 200a to rotate via the rotating shaft. The rotating shaft is the drive shaft of the running system and is structured to be connected to the drive mechanism of the running system. For example, the rotating shaft is connected to the output end of the transmission of the running system. Further, the hub body 200a is detachably connected to the connecting shaft. Specifically, a boss portion 2004 is formed on the surface of the hub body 200a, and a screw groove 2004a is provided in the boss portion. One end of the connecting shaft is disposed within the screw groove 2004a, and the boss portion and the connecting shaft are fixed by a screw. At this time, the screw direction of the connecting shaft and the screw groove is set to be opposite to the rotation direction when the running system moves forward normally, and is designed to be consistent with the rotation direction when moving backward. This avoids the problem that the connection portion between the hub body 200a and the connecting shaft is likely to loosen. Further, the hub mechanism 200 includes a center bolt 200i, and fixing holes are provided in the hub. On the other hand, a center hole is formed in the connecting shaft, and the center bolt passes through the fixing hole and is installed, and a part of it is disposed within the center hole and is fixedly connected to the connecting shaft. The center bolt passes through the fixing hole and is installed, and a part of it is disposed within the center hole and is fixedly connected to the connecting shaft. In other embodiments, the screw groove 2004a can be provided not only on the boss portion but also on the connecting shaft. In this embodiment, screws are formed on the outer peripheral wall of the boss portion.

[0031] As shown in FIGS. 1 and 6, in an embodiment, the oil introduction structure 200f includes a first bearing 270 and a second bearing 280. The inner rings of both the first bearing 270 and the second bearing 280 are fitted to the oil plate 250, and both ends of the rotating sleeve 260 are fitted to the outer ring of the first bearing 270 and the outer ring of the second bearing 280, respectively. Thus, the rotating sleeve 260 is surely rotatably connected to the oil plate 250. Further, the rotating sleeve 260 includes a first rotating connection portion 262, a load portion 264, and a second rotating connection portion 266. The diameters of both the first rotating connection portion 262 and the second rotating connection portion 266 are designed to be smaller than the diameter of the load portion 264. The first buffer chamber 201 and the second buffer chamber 203 are both formed in the load portion 264. Both ends of the rotating sleeve 260 are rotatably connected to the first rotating connection portion 262 and the second rotating connection portion 266, respectively. In this embodiment, the first rotating connection portion 262 is fitted to the outer ring of the first bearing 270, and the second rotating connection portion 266 is fitted to the outer ring of the second bearing 280.

[0032] As shown in FIGS. 1 and 6, the oil introduction structure 200f includes a first oil seal 268 and a second oil seal 269. Both the first oil seal 268 and the second oil seal 269 are fitted to the oil plate 250. The first oil seal 268 is provided at a position on the opposite side of the first bearing 270 from the second bearing 280, and the second oil seal 269 is provided at a position on the opposite side of the second bearing 280 from the first bearing 270. In the present embodiment, the first rotary connection portion 262 is fitted to the first oil seal 268, and the second rotary connection portion 266 is fitted to the second oil seal 269. Further, the first rotary connection portion 262 is provided at a position on the opposite side of the first bearing 270 from the second bearing 280, and the second rotary connection portion 266 is provided at a position on the opposite side of the second bearing 280 from the first bearing 270, thereby forming a structure that exhibits an oil seal effect. In the present embodiment, both the first oil seal 268 and the second oil seal 269 are made of rubber oil seals, whereby the first oil seal 268 and the second oil seal 269 have a high oil sealing effect. And / or, as shown in FIGS. 1 and 6, in an embodiment, the hub mechanism 200 further includes a fluid supply pipe 200k and a discharge pipe 200j. The fluid supply pipe 200k communicates with the first buffer chamber 201 and the fluid inlet end 24 of the power generation mechanism 20, respectively, and serves to communicate the first buffer chamber 201 and the fluid inlet end 24 of the power generation mechanism 20. Further, the discharge pipe 200j communicates with the second buffer chamber 203 and the fluid outlet end 26 of the power generation mechanism 20, respectively, and serves to communicate the second buffer chamber 203 and the fluid outlet end 26 of the power generation mechanism 20. In the present embodiment, a pipe gap is provided between the oil plate 250 and the connecting shaft 2002, and the fluid supply pipe 200k and the discharge pipe 200j are installed through this pipe gap. Further, a first attachment port and a second attachment port are formed in the oil plate 250. The fluid supply pipe 200k is connected to the oil plate 250 through the first attachment port, and this first attachment port communicates with the first buffer chamber 201.On the one hand, the discharge pipe 200j is connected to the oil plate 250 via the second attachment port, and this second attachment port communicates with the second buffer chamber 203. And / or, as shown in FIGS. 1 and 6, in an embodiment, the hub mechanism 200 includes a plurality of fluid passage pipes 200m. Both ends of each fluid passage pipe 200m are respectively connected to the rotating sleeve 260 and the hub body 200a. A plurality of fluid stability grooves 263 are formed at intervals on the inner peripheral wall of the rotating sleeve 260. Both ends of each fluid passage pipe 200m communicate with the corresponding piston chamber 202 and the corresponding fluid stability groove 263 respectively. Each fluid stability groove 263 is configured to communicate with the first buffer chamber when the hub body 200a rotates to the first predetermined angular position and communicate with the second buffer chamber when it rotates to the second predetermined angular position. With this configuration, each piston chamber 202 communicates with the fluid inlet end 24 of the power generation mechanism 20 when the hub body 200a reaches the first predetermined angular position, and communicates with the fluid outlet end 26 of the power generation mechanism 20 when it reaches the second predetermined angular position.

[0033] As shown in FIGS. 1 and 6, the rotating sleeve 260 is detachably connected to the hub, thereby improving the convenience of use of the hub mechanism 200. Further, the hub mechanism 200 includes a fixing screw 200n. An attachment through hole is formed in the hub, and a fixing screw hole is formed in the rotating sleeve 260. The fixing screw 200n is installed through the attachment through hole and the fixing screw hole respectively, and with this structure, the rotating sleeve 260 is detachably connected to the hub.

[0034] As shown in FIGS. 1 and 6, the rotating sleeve 260 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, which facilitates the disassembly and assembly of the rotating sleeve 260. In this embodiment, the first rotating connection portion 262 is provided on the rotating cover plate 260a, and the second rotating connection portion 266 is provided on the rotating sleeve body 260b. The rotating cover plate 260a is fixedly connected to the hub via the fixing screw 200n. The fluid stability groove 263 is formed in the rotating sleeve body 260b, and the fluid passage pipe 200m is connected to the rotating sleeve body 260b. Further, the rotating cover plate 260a is fixedly connected to the rotating sleeve body 260b via a lock screw.

[0035] As shown in FIGS. 6 and 7, a connection through hole 2603 is formed in the rotating cover plate 260a, and a lock screw hole 2605 is formed in the rotating sleeve body 260b. Further, the rotating sleeve 260 includes a lock screw 260c. The lock screw 260c is installed through the connection through hole 2603 and the lock screw hole 2605 respectively, and with this structure, the rotating cover plate 260a is fixedly connected to the rotating sleeve body 260b via the lock screw 260c.

[0036] Furthermore, an annular seal ring 2607 protrudes along the circumferential direction on the rotating sleeve body 260b. The rotating cover plate 260a is arranged in contact with the annular seal ring 2607, and thus the rotating sleeve body 260b and the rotating cover plate 260a are in close contact and connected.

[0037] As shown in FIGS. 1 and 8, further, the running buffer assembly 100 includes a tire 110, a fixed protrusion 120, an inflatable film 130, and an elastic connection block 140. An annular receiving groove 102 is formed in the tire 110, and the tire 110 is structured to be fitted to a hub. Specifically, the tire 110 is fitted to the outer peripheral edge of the hub. A plurality of fixed protrusions 120 are provided, and they are arranged at intervals on the inner peripheral wall of the annular receiving groove 102. Each fixed protrusion 120 is connected to a piston assembly 200b of a corresponding hub mechanism 200 that is slidably connected to the hub. That is, each fixed protrusion 120 is connected to a corresponding piston assembly 200b, whereby each piston unit rod is connected to the running buffer assembly. The inflatable film 130 is arranged in the annular receiving groove 102, and the inflatable film 130 is connected to at least the piston assembly 200b corresponding to each fixed protrusion 120. With this structure, the inflatable film 130 is installed in a form that covers the opening of the annular receiving groove 102, and forms an inflation chamber 104 in a form that surrounds the annular receiving groove 102. A plurality of elastic connection blocks 140 are provided, and each elastic connection block 140 is connected to two adjacent fixed protrusions 120. Also, each elastic connection block 140 is arranged in the annular receiving groove 102 and is also connected to the tire 110. With this structure, an elastic deformation region is formed on the inner peripheral wall of the running buffer assembly. In this embodiment, the elastic deformation regions are respectively formed on each elastic connection block 140 and the tire 110. In use, by injecting an inflation gas into the inflation chamber 104, it becomes possible to support the interval between two adjacent fixed protrusions 120, and the running buffer assembly 100 exhibits excellent vibration damping performance and can reduce the vibration generated during running. Also, the inflation gas helps to cool the tire 110 and has a structure that is difficult to leak. As the inflation gas, nitrogen or other neutral gases can be used. Further, an inflation valve is provided on the hub, one end of the inflation valve is located outside the hub, and the other end is arranged in the inflation chamber 104. With this structure, it is possible to inject gas into the inflation chamber 104 through the inflation valve.The tire 110 is fitted to the hub of the hub mechanism 200, and the plurality of fixed protrusions 120 are arranged at intervals on the inner peripheral wall of the annular accommodation groove 102. Also, each fixed protrusion 120 is connected to a corresponding piston assembly 200b slidably connected to the hub. When the hub rotates by the rotating shaft, the rotating shaft rotates the hub and the tire 110. At this time, the outer peripheral wall of the tire 110 comes into contact with the ground as the hub body rotates. Furthermore, each elastic connection block 140 is connected to two adjacent fixed protrusions 120, is arranged in the annular accommodation groove 102, and is also connected to the tire 110. Since each elastic connection block 140 has excellent deformation performance, when the tire 110 deforms, the fixed protrusion 120 can slide the piston assembly 200b more smoothly with respect to the hub. Thereby, an excellent vibration damping effect is obtained. In addition, the inflatable film 130 is arranged in the annular accommodation groove 102, and the inflatable film 130 forms an inflatable chamber 104 surrounding the annular accommodation groove 102 by being connected to at least the piston assembly 200b corresponding to each fixed protrusion 120. An inflatable gas is injected into the inflatable chamber 104, which supports the space between adjacent fixed protrusions 120 and improves the vibration damping performance of the traveling buffer assembly 100. Also, in addition to reducing vibrations during traveling, the inflatable gas helps cool the tire 110 and has a structure that is difficult to leak.

[0038] As shown in FIGS. 1 and 8, the inflatable membrane 130 is also connected to the hub 230, and the inflatable membrane 130 is structured to be connected to the hub 230 and the plurality of piston assemblies 200b respectively. With this structure, the inflatable membrane 130 can more reliably surround the annular accommodation groove 102 and form the inflation chamber 104. In this embodiment, the inflatable membrane 130 is connected to the outer peripheral wall of the hub 230, and the portion where the inflatable membrane 130 is connected to the hub 230 is defined as the fixing portion. A plurality of fixing portions are provided, and with this structure, the inflatable membrane 130 more reliably surrounds the annular accommodation groove 102, thereby strengthening the formation of the inflation chamber 104. Furthermore, at least one fixing portion is provided on the inflatable membrane 130 located between two adjacent fixing protrusions 120. With this fixing portion, the inflatable membrane 130 can more reliably surround the annular accommodation groove 102, and the formation of the inflation chamber 104 is further improved.

[0039] As shown in FIGS. 1, 8 and 9, the inflatable membrane 130 is detachably connected to the hub 230. In this embodiment, the wheel device 10 includes a plurality of first locking members 300. Each fixing portion is fixedly connected to the outer peripheral wall of the hub via the first locking member 300. It should be noted that in other embodiments, the locking mechanism is not limited to the first locking member, and other detachable connection methods can also be adopted.

[0040] The fixed protrusions 120 are composed of plastic parts or carbon fiber parts. Each elastic connection block 140 is connected to two adjacent fixed protrusions 120 respectively, is arranged in the annular accommodation groove 102, and is also connected to the tire 110. With this structure, the tire 110 has sufficient strength between two adjacent elastic connection blocks 140, and the pressure-resistant deformation strength of each elastic connection block 140 is improved. Furthermore, the tire 110 exhibits excellent buffering performance and vibration damping performance during driving. Since the fixed protrusions 120 are composed of plastic parts or hard resin parts, the fixed protrusions 120 have excellent supporting strength. As a result, the fixed protrusions 120 have a good influence on the corresponding piston assembly 200b. In this embodiment, each fixed protrusion 120 is fixedly connected to the inner wall of the annular accommodation groove 102 using an adhesive. With this structure, each fixed protrusion 120 is firmly fixed to the tire 110.

[0041] As shown in FIGS. 1 and 8, there is a gap between two adjacent fixed protrusions 120, and this gap is filled with the elastic connection block 140. With this structure, the surface of the tire 110 has sufficient strength between two adjacent elastic connection blocks 140, and the pressure-resistant deformation strength of each elastic connection block 140 is improved. Also, with this structure, the tire 110 exhibits excellent buffering performance during driving, the surface thickness of the tire 110 increases, and the resistance to penetration and air leakage is improved.

[0042] As shown in FIGS. 1 and 8, the elastic connection block 140 is composed of an elastic rubber block, whereby the elastic connection block 140 has excellent elasticity and is more securely connected and fixed to the fixed protrusion 120. In this embodiment, the elastic connection block 140 is formed in the gap between two adjacent fixed protrusions 120 through the process of injection molding (pouring molding). With this structure, the elastic connection block 140 is more securely fixed to the fixed protrusion 120. And / or, as shown in FIGS. 1 and 8, the hardness of the elastic connection block 140 is set lower than the hardness of the fixed protrusion 120. Thereby, the compression deformation resistance performance of the elastic connection block 140 is lower than the compression deformation resistance performance of the fixed protrusion 120. Also, the elastic connection block 140 is connected to two adjacent fixed protrusions 120 respectively. With this structure, excessive deformation of the elastic connection block 140 is prevented, and a decrease in the vibration resistance performance during the rotation of the wheel device 10 is avoided. Thereby, the wheel device 10 can exhibit more stable performance during rotation.

[0043] As shown in FIGS. 1, 8, and 9, each piston assembly 200b includes a rubber clamp member 310. The piston unit rod 220 of each piston assembly 200b is disposed within the piston hole 204a of the corresponding piston hole group 204 and is slidably connected to the hub. Each fixed protrusion 120 is connected to the rubber clamp member 310 of the corresponding piston assembly 200b, thereby providing a structure in which each piston assembly 200b is more securely fixedly connected to the corresponding fixed protrusion 120. Further, the inflatable film 130 is connected at least between the rubber clamp member 310 of each piston assembly 200b and the corresponding piston unit rod 220, and the inflatable film 130 is securely fixedly connected to the piston assembly 200b. In this embodiment, an arcuate recess 312 is formed in each rubber clamp member 310, and an arcuate protrusion 122 is formed in each fixed protrusion 120. The arcuate protrusion 122 of each fixed protrusion 120 is disposed within the arcuate recess 312 of the corresponding rubber clamp member 310, thereby more securely connecting each rubber clamp member 310 to the corresponding fixed protrusion 120. Further, each fixed protrusion 120 is structured to exert a better effect on the piston via the corresponding rubber clamp member 310.

[0044] As shown in FIGS. 1, 8 and 9, furthermore, each piston assembly 200b includes at least a plurality of fixing screws 330. Each fixing screw 330 fixedly connects the rubber clamp member 310 to the piston, and the inflatable film 130 is crimped and fixed between the rubber clamp member 310 and the piston, whereby the inflatable film 130 is securely fixedly connected between the rubber clamp member 310 of each piston assembly 200b and the corresponding piston. In this embodiment, the rubber clamp member 310 is provided with a connection hole 314, the piston is formed with a screw hole, and the inflatable film 130 is formed with a through hole. Each fixing screw 330 is arranged to penetrate through the connection hole, the through hole, and the screw hole, whereby the inflatable film 130 is more securely fixed between the rubber clamp member 310 of each piston assembly 200b and the corresponding piston. Specifically, an empty groove 124 is formed in the arched protrusion of each fixing protrusion 120, and the head of each fixing screw 330 is arranged in this empty groove and connected to the arched protrusion of the corresponding fixing protrusion 120. With this structure, the structure of each piston assembly 200b is designed to be more compact.

[0045] As shown in FIGS. 1, 2, and 9, the wheel device 10 includes a plurality of vibration damping components 400, and these vibration damping components 400 are arranged in a one-to-one correspondence with a plurality of piston assemblies 200b. Each vibration damping component 400 includes a connection plate 410, an elastic support component 420, and a first elastic limiting portion 430. The connection plate 410 of each vibration damping component 400 is connected between the rubber clamp member 310 of the corresponding piston assembly 200b and the piston, whereby each vibration damping component 400 is fixed between the rubber clamp member 310 of the corresponding piston assembly 200b and the piston. In this embodiment, the connection plate 410 of each vibration damping component 400 is located on the outer peripheral portion of the hub and is connected between the rubber clamp member 310 of the corresponding piston assembly 200b and the piston. Further, the first elastic limiting portion 430 of each vibration damping component 400 is connected to the outer peripheral wall of the hub, and the elastic support component 420 of each vibration damping component 400 is arranged between the corresponding connection plate 410 and the first elastic limiting portion 430. When the piston slides relative to the hub, the elastic support component 420 of each vibration damping component 400 is compressed and deformed, and this deformation reduces the vibration generated when the piston slides relative to the hub. Also, when each element such as the fixed protrusion 120 and the pneumatic film 130 of the running buffer component 100 acts together, the vibration generated during the rotation of the running buffer component 100 is further reduced, and the operation when the piston slides relative to the hub becomes more stable. In addition, due to the limiting effect of the first elastic limiting portion 430, the problem that the connection plate 410 and the roller come into direct contact and the impact force becomes large is avoided.

[0046] As shown in FIGS. 1 and 2, the elastic support component 420 of each vibration damping component 400 has a structure including a fixed plate 422 and an elastic member 424. The fixed plate 422 is attached to the connection plate 410. One end of the elastic member 424 is connected to the fixed plate 422, and the other end of the elastic member 424 is connected to the first elastic limit portion 430. Thereby, the elastic support component 420 of each vibration damping component 400 is disposed between the corresponding connection plate 410 and the first elastic limit portion 430. In this embodiment, a mounting protrusion 412 is formed on the connection plate 410, and the fixed plate 422 is mounted on the protrusion 412. Further, the elastic member 424 is disposed around the protrusion 412 and has excellent central retention when the elastic member 424 is compressed and deformed. With this structure, the elastic support component 420 is more reliably and efficiently elastically connected between the corresponding connection plate 410 and the first elastic limit portion 430.

[0047] As shown in FIGS. 1 and 2, an elastic pad 426 is included in the elastic support component 420 of each vibration damping component 400. The elastic pad 426 is mounted on the mounting protrusion 412, and the fixing plate 422 is fixedly connected to the connection plate 410 via the elastic pad 426. Further, the end of the elastic member 424 is connected to the fixing plate 422 via the elastic pad 426, whereby the fixing plate 422 is more effectively elastically fixed to the connection plate 410. Due to the combined action of the elastic pad 426 and the elastic member 424, the elastic support component 420 has better elastic characteristics. A mounting slot 233 is formed in the outer peripheral wall of the hub 230, and the first elastic limit portion 430 is disposed in the mounting slot 233 and fixedly connected to the hub 230. Also, the end of the elastic member 424 is fixedly connected to the elastic support component 420. In this embodiment, a buffer recess 435 corresponding to the mounting protrusion 412 is formed in the first elastic limit portion 430. One end of the elastic member 424 is disposed in the buffer recess 435 and connected to the first elastic limit portion 430. When the elastic support component 420 moves relative to the first elastic limit portion 430 and reaches the first limit position, that is, when the piston moves to the first limit position in the piston chamber 202, the amount of hydraulic fluid in the piston chamber 202 is minimized at this time. At the same time, the mounting protrusion 412 moves into the buffer recess 435 together with the connection plate 410, and the compression amount of the elastic member 424 becomes maximum. With this structure, the vibration generated when the piston slides relative to the hub is further reduced, and the device of the tire 110 realizes a more stable operation during running.

[0048] As shown in FIGS. 1 and 2, further, the first elastic limiting portion 430 has a structure including a first elastic limiting portion main body 430a and a buffer pad 430b. The buffer groove 435 is formed in the first elastic limiting portion main body 430a, and the buffer pad 430b is disposed in the buffer groove 435 and connected to the first elastic limiting portion main body 430a. Also, the buffer pad 430b is connected to the end of the elastic member 424, whereby the elastic member 424 is fixedly connected to the first elastic limiting portion 430. In this embodiment, the buffer pad 430b is connected to the first elastic limiting portion main body 430a using an adhesive, and the buffer pad 430b is securely fixed to the first elastic limiting portion main body 430a.

[0049] As shown in FIGS. 1 and 2, in each piston chamber 202, a second elastic limiting portion 202a protrudes at a position adjacent to the connection plate 410. The second elastic limiting portion 202a is disposed corresponding to the piston assembly 200b and serves to limit the sliding position of the piston assembly 200b within the piston chamber 202. Thereby, damage caused by the piston assembly 200b directly colliding with the inner cavity of the hub is prevented. Further, the connection plate 410 of each vibration damping component 400 is connected between the rubber clamp member 310 of the corresponding piston assembly 200b and the piston, whereby the piston assembly 200b can slide securely within the corresponding piston chamber 202.

[0050] As shown in FIG. 1, the invention also provides a power generation device 60. The power generation device 60 includes a power generation mechanism 20 and the above-described wheel device 10. Each piston chamber 202 is configured to communicate with the fluid inlet end 24 of the power generation mechanism 20 when the hub body rotates to a first predetermined angular position, and to communicate with the fluid outlet end 26 of the power generation mechanism 20 when the hub body rotates to a second predetermined angular position.

[0051] The above-described power generation device 60 has a structure in which each piston chamber 202 communicates with the fluid inlet end 24 of the power generation mechanism 20 when it reaches a first predetermined angular position as the hub body 200a rotates, and communicates with the fluid outlet end 26 of the power generation mechanism 20 when the hub body 200a reaches a second predetermined angular position. With this structure, each piston assembly 200b slides relative to the hub body 200a at different positions as the hub body 200a rotates, thereby enabling the power generation mechanism 20 to continuously generate electricity. Each piston hole group 204 includes a plurality of piston holes 204a, and each piston chamber 202 communicates with the plurality of piston holes 204a of the corresponding piston hole group 204. Each piston assembly 200b includes a piston plate 210 and a plurality of piston rods 220. When the hub assembly rolls on the ground, the position of the hub assembly in contact with the ground deforms. At this time, each piston rod 220 is connected to the running buffer component 100, and the deformation of the running buffer component 100 slides the plurality of piston rods 220 of the corresponding piston assembly 200b relative to the hub body 200a. The plurality of piston rods 220 are connected in parallel to the piston plate 210, thereby reducing the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a. Further, the piston plate 210 of each piston assembly 200b is disposed within the corresponding piston chamber 202 and is slidably connected to the hub body 200a. The plurality of piston rods 220 respectively correspond one-to-one to the plurality of piston holes 204a of the corresponding piston hole group 204, and each piston rod 220 is slidably connected to the hub body 200a. With this structure, the piston plate 210 of each piston assembly 200b can simultaneously drive the plurality of piston rods 220 to slide relative to the hub body 200a, and the plurality of piston rods 220 can act on the same piston plate 210. As a result, under the condition of obtaining the same power generation output, the surface area required for the piston assemblies 200b arranged in the circumferential direction of the hub body 200a can be significantly reduced, so that the volume of the hub body 200a can be reduced, and thus the volume of the entire wheel device 10 can be reduced.That is, if the volume of the same hub body is the same, this hub mechanism can generate a larger power output during running, and the power performance of the hub mechanism can be improved.

[0052] As shown in FIGS. 1 and 10, the power generation mechanism 20 includes a power generation mechanism main body 20a and a hydraulic drive component 20b. The hydraulic drive component 20b has a structure including a mechanism housing 24b and a hydraulic drive wheel 22b. The mechanism housing 24b forms a hydraulic chamber 22, a fluid inlet end 24, and a fluid outlet end 26, and the hydraulic chamber 22 communicates with the fluid inlet end 24 and the fluid outlet end 26 respectively. The hydraulic drive wheel 22b is disposed in the hydraulic chamber 22 and is rotatably connected to the mechanism housing 24b. The hydraulic drive wheel 22b is connected to the power input end of the power generation mechanism main body 20a. When the hydraulic fluid flows in from the fluid inlet end 24 and flows out from the fluid outlet end 26, the hydraulic fluid passes through the hydraulic chamber 22 and rotates the hydraulic drive wheel 22b. Thereby, the hydraulic drive wheel 22b drives the power generation mechanism main body 20a to generate electric power.

[0053] This application provides a running system. The running system has a configuration including a rotating shaft, a running main body, and the power generation device 60 described in any of the foregoing embodiments. The hub body 200a is connected to the rotating shaft, and the rotating shaft is rotatably connected to the running main body. The power generation mechanism 20 is disposed on the running main body. In this embodiment, a suspension 30 is provided on the running main body.

[0054] The above-described traveling system has a configuration including a rotating shaft, a traveling body, and a power generation device 60. The hub body 200a is connected to the rotating shaft, and the rotating shaft is rotatably connected to the traveling body. The power generation mechanism 20 is installed on the traveling body. Each piston chamber 202 has a structure that communicates with the fluid inlet end 24 of the power generation mechanism 20 when the hub body 200a rotates to a first predetermined angular position and communicates with the fluid outlet end 26 of the power generation mechanism 20 when it rotates to a second predetermined angular position. Due to this structure, each piston assembly 200b slides relative to the hub body 200a at different positions as the hub body 200a rotates, thereby enabling the power generation mechanism 20 to generate electricity continuously. Each piston hole group 204 includes a plurality of piston holes 204a, and each piston chamber 202 communicates with the plurality of piston holes 204a of the corresponding piston hole group 204. Each piston assembly 200b includes a piston plate 210 and a plurality of piston rods 220. When the hub assembly rolls on the ground, the position of the hub assembly in contact with the ground deforms. At this time, each piston rod 220 is connected to the traveling buffer component 100, and the deformation of the traveling buffer component 100 slides the plurality of piston rods 220 of the corresponding piston assembly 200b relative to the hub body 200a. The plurality of piston rods 220 are connected in parallel to the piston plate 210, thereby reducing the space occupied by each piston assembly 200b on the outer peripheral wall of the hub body 200a. Furthermore, the piston plate 210 of each piston assembly 200b is disposed within the corresponding piston chamber 202 and is in sliding connection with the hub body 200a. The plurality of piston rods 220 correspond one-to-one with the plurality of piston holes 204a of the corresponding piston hole group 204, and each piston rod 220 is in sliding connection with the hub body 200a. Due to this structure, the piston plate 210 of each piston assembly 200b can drive the plurality of piston rods 220 simultaneously to slide relative to the hub body 200a, and the plurality of piston rods 220 can act on the same piston plate 210.As a result, under the condition of obtaining the same power generation output, the surface area required for the piston assembly 200b arranged in the circumferential direction of the hub body 200a can be significantly reduced, so that the volume of the hub body 200a can be reduced, and thus the volume of the entire wheel device 10 can be reduced. That is, if the volume of the same hub body is the same, this hub mechanism can generate a larger power generation output during driving, and the power performance of the hub mechanism can be improved.

[0055] A connecting shaft protrudes from the hub body 200a, and this connecting shaft is connected to the brake disc 40. In this embodiment, the connecting shaft is connected to the rotating shaft via the brake disc 40, and the rotating shaft rotates the hub body 200a through the connecting shaft. The rotating shaft is the driving rotating shaft of the running system and is connected to the driving mechanism of the running system. For example, the driving rotating shaft is connected to the output end of the transmission of the running system. In this embodiment, the connecting shaft is connected to the connecting hub of the brake disc 40.

[0056] It is appended that the technical features of the above-described embodiments can be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features of these embodiments have not been described, but as long as there is no contradiction in the combination of these technical features, they should be considered to be included in the scope described in this specification. The above-described embodiments show some embodiments of the present invention and are described relatively specifically and in detail, but it should be emphasized that the scope of the present invention patent should not be construed as being limited thereby. It is obvious to those of ordinary skill in the art that several changes and improvements can be made without departing from the basic concept of the present invention, and these should also be considered to be included in the protection scope of this application. Therefore, the protection scope of the patent of this application shall be determined by the appended claims.

Claims

1. A hub mechanism for connecting a running buffer device, characterized in that the hub mechanism includes the following: A hub body, on which a plurality of piston chambers and a plurality of piston hole groups are provided. Each piston hole group includes a plurality of piston holes, and each piston chamber communicates with a plurality of piston holes in the corresponding piston hole group. The outer peripheral wall of the hub body is configured for connecting the running buffer device. A plurality of piston assemblies, each piston assembly is composed of a piston plate and a plurality of piston units. The plurality of piston units are connected to the piston plate in parallel. The piston plate of each piston assembly is disposed in the corresponding piston chamber and is slidably connected to the hub body. Also, the plurality of piston units respectively correspond one-to-one to the plurality of piston holes in the corresponding piston hole group. Each piston unit is slidably connected to the hub body and is configured to be connected to the running buffer device. Each piston chamber is configured to communicate with the fluid inlet end of the power generation mechanism when the hub body rotates to reach a first predetermined angular position, and to communicate with the fluid outlet end of the power generation mechanism when the hub body reaches a second predetermined angular position. A hub mechanism.

2. The hub mechanism further includes an oil guide structure, characterized in that the oil guide structure includes a liquid guide plate and a rotating sleeve. The liquid guide plate is configured for attachment to the suspension. The rotating sleeve is connected to the hub body and is rotatably connected to the liquid guide plate. A sealing liquid gap for sealing liquid is formed between the rotating sleeve and the liquid guide plate. The liquid guide plate is formed with a first buffer chamber and a second buffer chamber, both of which communicate with the sealing liquid gap. The first buffer chamber communicates with the fluid inlet end of the power generation mechanism, and the second buffer chamber communicates with the fluid outlet end of the power generation mechanism. Each piston chamber communicates with the first buffer chamber when the hub body rotates to the first predetermined angular position, and communicates with the second buffer chamber when the hub body rotates to the second predetermined angular position. The hub mechanism according to claim 1.

3. The hub mechanism according to claim 2, wherein the hub mechanism is characterized in that a relief hole is formed in the liquid guide plate, the hub body is provided with a protruding connection shaft, the connection shaft is configured to penetrate the relief hole, and the connection shaft is configured to be connected to the brake disc. Hub mechanism.

4. The hub mechanism according to claim 3, wherein the hub mechanism is characterized in that the hub body is detachably connected to the connection shaft. Hub mechanism.

5. The hub mechanism according to claim 3, wherein the hub mechanism is characterized in that the oil guide structure further includes a first bearing and a second bearing, the inner rings of the first bearing and the second bearing are both mounted on the liquid guide plate, and both ends of the rotating sleeve are respectively mounted on the outer rings of the first bearing and the second bearing. Hub mechanism.

6. The hub mechanism according to claim 5, wherein the hub mechanism is characterized in that the oil guide structure further includes a first oil seal and a second oil seal, the first oil seal and the second oil seal are both mounted on the liquid guide plate, the first oil seal is arranged on the side of the first bearing away from the second bearing, and the second oil seal is arranged on the side of the second bearing away from the first bearing. Hub mechanism.

7. The hub mechanism according to claim 3, wherein the hub mechanism is characterized in that the rotating sleeve includes a first rotating connection portion, a pressure receiving portion and a second rotating connection portion, the diameters of the first rotating connection portion and the second rotating connection portion are both smaller than the diameter of the pressure receiving portion, and the first buffer chamber and the second buffer chamber are both formed in the pressure receiving portion, and both ends of the rotating sleeve are rotatably connected to the first rotating connection portion and the second rotating connection portion respectively. Hub mechanism.

8. The hub mechanism according to claim 7, wherein the hub mechanism is characterized in that the hub mechanism further includes a fluid supply pipe and a fluid discharge pipe, the fluid supply pipe communicates with the first buffer chamber and the fluid inlet end of the power generation mechanism respectively, and the fluid discharge pipe communicates with the second buffer chamber and the fluid outlet end of the power generation mechanism respectively. Hub mechanism.

9. The hub mechanism according to claim 8, wherein the hub mechanism is characterized in that a piping gap is formed between the liquid guiding plate and the connecting shaft, and both the fluid supply pipe and the fluid discharge pipe are configured to penetrate the piping gap. Further, a first attachment port and a second attachment port are formed in the liquid guiding plate. The fluid supply pipe is connected to the liquid guiding plate through the first attachment port, and the first attachment port communicates with the first buffer chamber. Additionally, the fluid discharge pipe is connected to the liquid guiding plate through the second attachment port, and the second attachment port communicates with the second buffer chamber. Hub mechanism.

10. The hub mechanism according to claim 3, wherein the hub mechanism is characterized in that the hub mechanism further includes a plurality of fluid pipes. Both ends of each fluid pipe are respectively connected to the rotating sleeve and the hub body. Liquid stability grooves are formed on the inner peripheral wall of the rotating sleeve at intervals. Both ends of each fluid pipe communicate with the corresponding piston chamber and the corresponding liquid stability groove respectively. Further, each liquid stability groove is configured to communicate with the first buffer chamber when the hub body rotates to reach a first predetermined angular position, and communicate with the second buffer chamber when the hub body rotates to reach a second predetermined angular position. Hub mechanism.

11. The hub mechanism according to claim 10, wherein the hub mechanism is characterized in that the rotating sleeve is detachably connected to the hub body. Hub mechanism.

12. The hub mechanism according to claim 11, wherein the hub mechanism is characterized in that the hub mechanism further includes a fixing screw. An attachment through hole is provided in the hub body, and a fixing screw hole is provided in the rotating sleeve. The fixing screw is configured to penetrate through the attachment through hole and the fixing screw hole respectively. Hub mechanism.

13. A wheel device, characterized in that the wheel device includes a running buffer device and a hub mechanism according to any one of claims 1 to 12, an elastic deformation part is formed on the inner peripheral wall of the running buffer device, the outer peripheral wall of the hub body is fitted into the running buffer device, each piston unit column is connected to the elastic deformation part, the running buffer device includes a tire, a fixed protrusion member, an inflation film, and an elastic connection block, an annular storage groove is formed in the tire, the tire is fitted onto the hub, there are a plurality of the fixed protrusion members, which are arranged at intervals on the inner peripheral wall of the annular storage groove, each fixed protrusion member is respectively connected to the piston assembly of the hub mechanism that is slidably connected to the hub, the inflation film is located in the annular storage groove and is connected to at least the piston assembly corresponding to each fixed protrusion member, there are a plurality of the elastic connection blocks, each elastic connection block is respectively connected to two adjacent fixed protrusion members, and further, each elastic connection block is located in the annular storage groove and is connected to the tire, whereby an elastic deformation region is formed on the inner peripheral wall of the running buffer device, and the inflation film is also connected to the hub. Wheel device.

14. The wheel device according to claim 13, characterized in that each piston assembly further includes an elastic band member, the piston unit column of each piston assembly is located in the piston hole of the corresponding piston hole group and is slidably connected to the hub body, and each fixed protrusion member is connected to the elastic band member of the corresponding piston assembly. The inflation film is connected between at least the elastic band member of each piston assembly and the corresponding piston unit column. Wheel device.

15. A power generation device, characterized in that the power generation device includes a power generation mechanism and a wheel device according to any one of claims 12 to 14, each piston chamber is configured to communicate with the fluid inlet end of the power generation mechanism when the hub body rotates to reach a first predetermined angular position, and to communicate with the fluid outlet end of the power generation mechanism when the hub body rotates to reach a second predetermined angular position. Power generation device.

16. A traveling system, the characteristics of which are that it includes a rotating shaft, a traveling body, and a power generation device according to claim 15. 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.

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