CN113733820B - Rotating structure, wheel limit structure and vehicle - Google Patents
Rotating structure, wheel limit structure and vehicle Download PDFInfo
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- CN113733820B CN113733820B CN202111302690.2A CN202111302690A CN113733820B CN 113733820 B CN113733820 B CN 113733820B CN 202111302690 A CN202111302690 A CN 202111302690A CN 113733820 B CN113733820 B CN 113733820B
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- ring
- air passage
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- groove
- tire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
- B60C23/004—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving the control being done on the wheel, e.g. using a wheel-mounted reservoir
Abstract
The invention discloses a rotating structure, a wheel edge structure and a vehicle, wherein the rotating structure comprises: the outer ring is suitable for being connected with a steering knuckle, an outer gas path is arranged on the outer ring, and the outer gas path is suitable for being connected with a gas source through the steering knuckle; the inner ring is suitable for synchronously rotating with a tire, the inner ring is provided with an inner air passage, the inner air passage is suitable for being communicated with the inner space of the tire, the outer ring is rotatably sleeved on the inner ring, and the inner air passage and the outer air passage are mutually communicated and sealed when the inner ring and the outer ring keep relatively static and rotate relatively. The rotating structure provided by the embodiment of the invention can realize real-time communication between the air source and the inner space of the tire, and has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a rotating structure, a wheel edge structure and a vehicle.
Background
The wheel edge structure in the related technology is provided with the air path, and the air path can realize that the air flow output by the air source is transmitted to the rotating tire through the wheel edge structure, so that the central inflation and deflation function of the tire is realized. However, the portion of the communication air passage is usually provided in the hub bearing, and since the hub bearing contains a liquid such as a lubricating oil, the sealing requirement of the hub bearing is high, and the heat dissipation performance is poor, so that the deterioration of the sealing member in the communication air passage is accelerated, and the maintenance of the communication air passage is inconvenient.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a rotary structure, which can realize real-time communication between an air source and an inner space of a tire, and has the advantages of long service life, fast heat dissipation speed, convenient maintenance, etc.
The embodiment of the invention also provides a wheel edge structure with the rotating structure.
The embodiment of the invention also provides a vehicle with the wheel edge structure.
In order to achieve the above object, a first aspect of the present invention provides a rotation structure, including: the outer ring is suitable for being connected with a steering knuckle, an outer gas path is arranged on the outer ring, and the outer gas path is suitable for being connected with a gas source through the steering knuckle; the inner ring is suitable for synchronously rotating with a tire, the inner ring is provided with an inner air passage, the inner air passage is suitable for being communicated with the inner space of the tire, the outer ring is rotatably sleeved on the inner ring, and the inner air passage and the outer air passage are mutually communicated and sealed when the inner ring and the outer ring keep relatively static and rotate relatively.
The rotating structure provided by the embodiment of the invention can realize real-time communication between the air source and the inner space of the tire, and has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
According to some embodiments of the invention, the outer ring comprises: the air conditioner comprises a main body, an outer air passage and a control device, wherein the outer air passage comprises a first air passage and a second air passage which are communicated, and the first air passage penetrates through the inner circumferential surface and the outer circumferential surface of the main body; the mounting lug is connected with the outer peripheral face of the main body, the second air path is arranged on at least one mounting lug, one end of the second air path penetrates through the mounting lug and one face, connected with the main body, of the mounting lug to be communicated with the first air path, and the other end of the second air path penetrates through the thickness face of the mounting lug to be connected with the air source through the steering knuckle.
According to some embodiments of the invention, the second air path comprises: the first air passage and the outer radial section are communicated and extend along the radial direction of the main body; the outer axial section extends along the axial direction of the main body, one end of the outer axial section is communicated with the outer radial section, and the other end of the outer axial section penetrates through the thickness surface of the mounting ear.
According to some embodiments of the invention, the main body and the at least one mounting ear are integrally formed, and the outer radial section penetrates through a surface of the mounting ear, which faces away from the main body, so as to be integrally formed with the first air passage; the swivel structure further includes a plug mounted to the mounting ear and inserted into the outer radial segment to seal an end of the outer radial segment facing away from the body.
According to some embodiments of the present invention, a thickness of the mounting lug is smaller than an axial length of the main body, and a mounting step is formed between a surface of the thickness of the mounting lug and an outer circumferential surface of the outer race.
According to some embodiments of the present invention, the inner air passage includes an air passage and a ring groove, the ring groove is disposed on the outer circumferential surface of the inner ring and extends along the circumferential direction of the inner ring, the outer air passage is communicated with the ring groove, one end of the air passage is communicated with the ring groove, and the other end of the air passage is adapted to be communicated with the inner space of the tire.
According to some embodiments of the invention, the inner ring comprises: a fixing ring; the sealing ring is sleeved on the fixing ring, the outer ring is rotatably sleeved on the sealing ring, and the elastic coefficient of the sealing ring is greater than that of the fixing ring; wherein, the annular groove is located the outer peripheral face of sealing ring, the air flue link up solid fixed ring with the sealing ring.
According to some embodiments of the invention, the outer circumferential surface of the fixing ring is provided with a rotation stopping boss, the inner circumferential surface of the sealing ring is provided with a rotation stopping groove, and the rotation stopping boss extends into the rotation stopping groove.
According to some embodiments of the invention, a portion of the air passage is provided to the rotation stop boss.
According to some embodiments of the present invention, each of the two side walls in the width direction of the ring groove is provided with a groove lip extending toward the other, the groove lips on the two side walls in the width direction of the ring groove are spaced apart from each other, and each of the groove lips is gradually inclined toward the outer ring from one end to the other end where it is fixed to the side walls of the ring groove.
According to some embodiments of the invention, the peripheral edge of the outer peripheral surface of the seal ring is provided with dust-proof lugs extending in a radial direction thereof.
According to some embodiments of the invention, the air passage includes a third air passage and a fourth air passage which are communicated, the third air passage penetrates through the inner circumferential surface and the outer circumferential surface of the sealing ring and is communicated with the ring groove, and the fourth air passage penetrates through the outer circumferential surface and an end surface of the fixing ring.
According to some embodiments of the invention, the fourth air path comprises: the inner radial section extends along the radial direction of the fixing ring and penetrates through the peripheral surface of the fixing ring to be communicated with the third air passage; the inner axial section is arranged along the axial extension of the inner ring, one end of the inner axial section is communicated with the inner radial section, and the other end of the inner axial section penetrates through the end face of the fixing ring.
According to some embodiments of the invention, the inner race and the outer race are an interference fit.
According to a second aspect of the present invention, there is provided a rim structure, including: a knuckle; according to the rotary structure described in the embodiment of the first aspect of the invention, the outer ring is connected to the knuckle; and the brake disc is rotatably arranged on the steering knuckle and is connected with the inner ring.
According to the wheel rim structure of the embodiment of the second aspect of the invention, by utilizing the rotating structure of the embodiment of the first aspect of the invention, the real-time communication between the air source and the inner space of the tire can be realized, and the wheel rim structure has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
According to some embodiments of the invention, the knuckle is configured with a knuckle air passage in communication with the outer air passage and the air source, respectively.
According to some embodiments of the invention, the wheel rim structure further comprises: the air passage block is respectively connected with the steering knuckle and the outer ring, and is provided with a transition air passage which is communicated with the steering knuckle air passage and the outer air passage.
According to some embodiments of the invention, the wheel rim structure further comprises: the wheel hub bearing comprises a bearing inner ring and a bearing outer ring, the bearing inner ring is rotatably sleeved on the bearing outer ring, the bearing outer ring is connected with the steering knuckle, the bearing inner ring is connected with the brake disc, and the tire is arranged on the bearing inner ring.
According to a third aspect embodiment of the invention, there is provided a vehicle including the wheel-rim structure according to the second aspect embodiment of the invention.
According to the vehicle provided by the embodiment of the third aspect of the invention, by utilizing the wheel edge structure provided by the embodiment of the second aspect of the invention, the real-time communication between the air source and the inner space of the tire can be realized, and the vehicle has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a wheel rim structure according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a rotary structure according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view at a-a of fig. 2.
Fig. 4 is a detailed view at B of fig. 3.
Fig. 5 is another structural schematic diagram of a rotating structure according to an embodiment of the present invention.
Fig. 6 is a sectional view at C-C of fig. 5.
Fig. 7 is a detailed view at D of fig. 6.
Reference numerals:
a rotating structure 1, a wheel edge structure 2,
Hub bearing 700, bearing inner race 710, bearing outer race 720, fender 810, brake caliper 820.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more, and "several" means one or more.
A rotary structure 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 7, a rotary structure 1 of an embodiment of the present invention includes an outer race 100 and an inner race 200. Wherein, the outer ring 100 may be made of a metal material.
According to the rotating structure 1 of the embodiment of the invention, the outer ring 100 is suitable for being connected with the knuckle 400, the outer ring 100 is provided with the outer air passage 110, the outer air passage 110 is suitable for being connected with an air source through the knuckle 400, the inner ring 200 is suitable for rotating synchronously with the tire, the inner ring 200 is provided with the inner air passage 210, and the inner air passage 210 is suitable for being communicated with the inner space of the tire, wherein the outer ring 100, the knuckle 400 and the vehicle body are kept in a relatively static state, the inner ring 200 can rotate synchronously with the tire, the air source can pressurize the tire sequentially through the outer air passage 110 and the inner air passage 210, or the tire can discharge air outwards through the inner air passage 210 and the outer air passage 110.
Wherein, revolution mechanic 1 can dismantle the installation as an independent spare part, because revolution mechanic 1's volume is less, the installation is convenient and fast more, and revolution mechanic 1's spare part's processing technology is simpler relatively, the quantity of the spare part that outer gas circuit 110 and interior gas circuit 210 related of processing is few on revolution mechanic 1, it is more convenient to process, therefore, not only made things convenient for and processed interior gas circuit 210 and outer gas circuit 110, but also be favorable to the later stage to revolution mechanic 1's maintenance or change, thereby can guarantee outer gas circuit 110 and interior gas circuit 210's structural stability.
In addition, the outer ring 100 is rotatably sleeved on the inner ring 200, the inner air passage 210 and the outer air passage 110 are configured to be communicated and sealed with each other when the inner ring 200 and the outer ring 100 keep relatively static and rotate relatively, so that when the inner ring 200 rotates along with the tire, the outer ring 100 can keep static with the vehicle body, and further the communication between the outer air passage 110 and the air source is convenient to keep, furthermore, when the inner ring 200 and the outer ring 100 keep relatively static or rotate relatively, the inner air passage 210 and the outer air passage 110 can be communicated and sealed, when the vehicle runs or is static, the tire can be inflated and deflated through the inner air passage 210 and the outer air passage 110, so that the air pressure inside the tire can be adjusted in real time, and the adjustment flexibility is higher.
Moreover, the inner air passage 210 and the outer air passage 110 are arranged inside the rotating structure 1, so that the rotating structure 1 has better pressure resistance, the rotating structure 1 can protect the structures of the inner air passage 210 and the outer air passage 110 from being damaged easily, the deformation of the air passages can be effectively avoided, and the outer air passage 110 and the inner air passage 210 can keep good air tightness.
In addition, compared with the prior art that the air path is arranged on the hub bearing, the rotating structure 1 provided by the embodiment of the invention has lower requirement on the sealing performance than the hub bearing, so that the rotating structure 1 has higher heat dissipation performance, and can discharge heat in the air path in time, thereby slowing down the aging speed of the sealing element in the air path, prolonging the service life and facilitating later maintenance.
Therefore, the rotating structure 1 provided by the embodiment of the invention can realize real-time communication between the air source and the inner space of the tire, and has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
In some embodiments of the present invention, as shown in fig. 1-4, the collar 100 includes a main body 120 and at least one mounting ear 130.
The outer air path 110 includes a first air path 111 and a second air path 112 which are communicated with each other, the first air path 111 penetrates through the inner circumferential surface and the outer circumferential surface of the main body 120, the mounting lug 130 is connected with the outer circumferential surface of the main body 120, the second air path 112 is arranged on at least one mounting lug 130, one end of the second air path 112 penetrates through the surface, connected with the main body 120, of the mounting lug 130 to be communicated with the first air path 111, and the other end of the second air path 112 penetrates through the thickness surface, connected with the air source through the knuckle 400, of the mounting lug 130 to be communicated with the air source.
Wherein, the installation ear 130 can be prepositioned for being connected between the knuckle 400 and the outer ring 100, is convenient for connect fixedly between the outer ring 100 and the knuckle 400, and the installation is more swift to be connected more reliably. And, second gas circuit 112 passes installation ear 130 and knuckle 400 intercommunication, and the air supply can be through knuckle 400, installation ear 130, outer lane 100 and inner circle 200 and the inner space intercommunication of tire, and the gas circuit sets up in the inside of above-mentioned part, not only need not additionally set up the pipeline, and the structure is simpler, and the compressive capacity of itself of above-mentioned part is higher moreover, can protect the gas circuit can not warp by the wearing and tearing, and the gas tightness is better and air flow carries more unobstructed.
Further, as shown in fig. 4, the second air passage 112 includes an outer radial section 113 and an outer axial section 114.
The first air passage 111 and the outer radial section 113 are communicated and extend along the radial direction of the main body 120, the outer axial section 114 extends along the axial direction of the main body 120, one end of the outer axial section 114 is communicated with the outer radial section 113, and the other end of the outer axial section penetrates through the thickness surface of the mounting ear 130.
Specifically, main part 120's radial extension can be followed to outer radial section 113, be convenient for communicate first gas circuit 111 and outer axial section 114, and through dividing into the part that the second gas circuit 112 is different, when knuckle 400 is connected with installation ear 130, the intercommunication between gas supply and the outer axial section 114 has been realized, it is more convenient to be connected between outer gas circuit 110 and the gas supply, the revolution mechanic 1 of also being convenient for arranges in narrow and small space, and the route of second gas circuit 112 is shorter, the air current is carried more smoothly, outer lane 100 can also be in its radially and the axial direction for second gas circuit 112 resistance to compression, avoid second gas circuit 112 to warp.
In some embodiments of the present invention, as shown in fig. 2 and 3, the main body 120 and the at least one mounting lug 130 are integrally formed, so that the overall structural strength of the outer ring 100 can be improved, the machining of the outer ring 100 can be facilitated, and the connection between the outer ring 100 and the knuckle 400 can be more reliable.
In addition, the outer radial section 113 penetrates through a surface of the mounting ear 130 facing away from the main body 120 to be integrally formed with the first air passage 111, so that whether the outer radial section 113 is communicated with the first air passage 111 can be directly observed through the outer radial section 113, and the mounting ear 130 can be directly penetrated in the radial direction of the main body 120 during processing to construct the outer radial section 113, so that the processing steps are simpler, and the production efficiency is higher.
Moreover, the rotating structure 1 further includes a plug 300, and the plug 300 is mounted on the mounting ear 130 and inserted into the outer radial section 113 to seal an end of the outer radial section 113 facing away from the main body 120, so that the plug 300 can disconnect the communication between the outer radial section 113 and the external space, and the outer radial section 113 can only realize the communication between the first air passage 111 and the outer axial section 114, thereby ensuring the sealing performance of the outer air passage 110.
For example, the plug 300 may be a bolt, and the plug 300 is screwed with the mounting lug 130 to reduce the difficulty of assembly and disassembly and improve the air tightness.
In some embodiments of the present invention, as shown in fig. 1, the thickness of the mounting lug 130 is smaller than the axial length of the main body 120, wherein the air channel block 600 described below can be fitted to one side of the mounting lug 130 in the thickness direction, and by setting the thickness of the mounting lug 130 to be smaller, the overall thickness of the mounting lug 130 and the air channel block 600 after being connected can be reduced, thereby facilitating to reduce the occupation of space and the difficulty of assembly and disassembly.
In addition, an installation step 140 is formed between one side of the thickness of the installation lug 130 and the outer peripheral surface of the outer ring 100, one end of the air channel block 600 can be abutted against the installation step 140, the installation step 140 can limit the installation between the air channel block 600 and the rotating structure 1, and the installation is more convenient and faster.
In some embodiments of the present invention, as shown in fig. 7, the inner air passage 210 includes an air passage 211 and a ring groove 216, the ring groove 216 is disposed on the outer circumferential surface of the inner ring 200 and extends along the circumferential direction of the inner ring 200, the outer air passage 110 is communicated with the ring groove 216, one end of the air passage 211 is communicated with the ring groove 216 and the other end is adapted to be communicated with the inner space of the tire.
The cross section of the ring groove 216 may be C-shaped, that is, the inner wall of the ring groove 216 is in arc transition, so that the inner wall of the ring groove 216 is stressed more uniformly, and the damage probability of the ring groove 216 is reduced.
Therefore, when the inner ring 200 and the outer ring 100 rotate relatively, the relative position of the outer ring 100 and the inner ring 200 changes at the moment, the annular groove 216 can be always communicated with the outer gas path 110, and the tire can be inflated in real time when the vehicle runs or stops. And, at least part of air flue 211 can extend along the radial direction of inner circle 200, and the length of air flue 211 is shorter, and the air current transmission is more unobstructed, and the air current of air supply can be carried to the inside of tire through outer gas circuit 110, annular groove 216 and air flue 211 in proper order.
In some embodiments of the present invention, as shown in fig. 5-7, inner race 200 includes a retaining ring 220 and a seal ring 230. The fixing ring 220 can be made of a metal material, provides a mounting position for the inner ring 200, meets the strength required by mounting, the sealing ring 230 can be made of polytetrafluoroethylene, the polytetrafluoroethylene material has good high temperature resistance, self-lubrication and small friction, can bear dry friction, reduces the wear rate of the surfaces of the sealing ring 230 and the outer ring 100, and has the temperature application range of-50-200 ℃, oil resistance, corrosion resistance and good sealing property.
The sealing ring 230 is sleeved on the fixing ring 220, for example, the sealing ring 230 is adhered to the fixing ring 220, the outer ring 100 is rotatably sleeved on the sealing ring 230, the elastic coefficient of the sealing ring 230 is greater than that of the fixing ring 220, wherein the ring groove 216 is disposed on the outer circumferential surface of the sealing ring 230, and the air passage 211 penetrates through the fixing ring 220 and the sealing ring 230.
Thus, after the outer ring 100 presses the sealing ring 230, the sealing ring 230 can be elastically deformed, so that the outer ring 100 and the sealing ring 230 are attached more tightly, and the air tightness of the inner air passage 210 and the air tightness between the inner air passage 210 and the outer air passage 110 are further improved.
In some embodiments of the present invention, as shown in fig. 2 and 5, the fixing ring 220 is provided at an outer circumferential surface thereof with a rotation stopping protrusion 221, and the sealing ring 230 is provided at an inner circumferential surface thereof with a rotation stopping groove, into which the rotation stopping protrusion 221 protrudes.
Specifically, the rotation stopping bosses 221 protrude from the outer peripheral surface of the fixing ring 220, the rotation stopping grooves are recessed from the inner peripheral surface of the sealing ring 230 to a direction away from the fixing ring 220, and after the rotation stopping bosses 221 extend into the rotation stopping grooves, the relative positions between the fixing ring 220 and the sealing ring 230 in the axial direction of the fixing ring 220 can be more stable, that is, the sealing ring 230 and the fixing ring 220 can rotate synchronously, so that the sealing ring 230 and the fixing ring 220 are prevented from being separated from each other due to friction between the sealing ring 230 and the outer ring 100.
In addition, as shown in fig. 7, the rotation stopping boss 221 is provided, a part of the air passage 211 can be provided on the rotation stopping boss 221, the rotation stopping boss 221 can provide a processing position for the air passage 211, and the thickness of the rest part of the fixing ring 220 in the circumferential direction can be set to be smaller, so that the weight of the fixing ring 220 can be reduced, and the production cost can be reduced.
In some embodiments of the present invention, as shown in fig. 4 and 7, each of the two side walls in the width direction of the ring groove 216 is provided with a groove lip 217 extending toward the other, the groove lips 217 are provided at intervals between the two side walls in the width direction of the ring groove 216, and each of the groove lips 217 is gradually inclined toward the outer race 100 from one end to the other end where it is fixed to the side wall of the ring groove 216.
Therefore, the area surrounded by the inner contour of the cross section of the ring groove 216 is larger, airflow flows more smoothly in the ring groove 216, one side of the groove lip 217 facing the outer ring 100 can be matched with the inner circumferential surface of the outer ring 100, and the inner circumferential surface of the outer ring 100 is sealed with the groove lip 217, so that the air tightness of the inner air passage 210 is further improved.
For example, when the air is not inflated and deflated, at this time, there is no air pressure in the annular groove 216, the contact area between the groove lip 217 and the outer ring 100 can be reduced, the damage of the air pressure to the groove lip 217 is reduced, and the abrasion of the groove lip 217 caused by the relative rotation between the outer ring 100 and the groove lip 217 is also reduced; when the air is inflated and deflated, the groove lip 217 expands and deforms under the action of air pressure, the contact area between the groove lip 217 and the outer ring 100 is increased and tightly attached, and the sealing effect of the inner air passage 210 and the outer air passage 110 is further improved.
In some embodiments of the present invention, as shown in fig. 4 and 7, the periphery of the outer circumferential surface of the sealing ring 230 is provided with dust-proof lugs 231 extending along the radial direction thereof, the dust-proof lugs 231 extend outward along the radial direction of the sealing ring 230, and the dust-proof lugs 231 are provided at two sides of the thickness direction of the sealing ring 230, so that the dust-proof lugs 231 can prevent silt carried up by a vehicle in driving from entering the sealing ring 230 and keep an air path unobstructed.
In addition, in order to increase the structural strength of the dust-proof lug 231, the dust-proof lug 231 and the groove lip 217 can be of an integral structure, so that the strength of the dust-proof lug 231 is increased, the pressure resistance of the groove 216 along the axial direction of the sealing ring 230 is increased, the overall service life of the sealing ring 230 is prolonged, the processing of the sealing ring 230 is simplified, and the processing cost is reduced.
In some embodiments of the present invention, as shown in fig. 7, the air passage 211 includes a third air passage 212 and a fourth air passage 213 which are communicated, the third air passage 212 penetrates through the inner and outer circumferential surfaces of the sealing ring 230 and is communicated with the ring groove 216, and the fourth air passage 213 penetrates through the outer circumferential surface and an end surface of the fixing ring 220.
Specifically, the third air passage 212 may extend in a radial direction of the sealing ring 230, one end of the third air passage 212 is connected to one side of the ring groove 216 facing the fixing ring 220, and the other end of the third air passage 212 is communicated with the fourth air passage 213, so that the third air passage 212 may be communicated with the inner space of the tire through the fourth air passage 213, and the air flow may enter the inside of the tire through the ring groove 216, the third air passage 212, and the fourth air passage 213, so as to achieve inflation and deflation of the tire.
Further, as shown in fig. 7, the fourth gas path 213 includes an inner radial section 214 and an inner axial section 215.
The inner radial section 214 extends along the radial direction of the fixing ring 220 and penetrates through the outer peripheral surface of the fixing ring 220 to be communicated with the third air passage 212, the inner axial section 215 extends along the axial direction of the inner ring 200, one end of the inner axial section 215 is communicated with the inner radial section 214, and the other end of the inner axial section penetrates through one end face of the fixing ring 220.
After sealing ring 230 and solid fixed ring 220 assembly are accomplished, the central axis of third gas circuit 212 and the coincidence of the central axis of internal radial section 214, the air current flows more unobstructed between third gas circuit 212 and internal radial section 214 like this, and, through dividing into the part of difference with fourth gas circuit 213, be convenient for communicate third gas circuit 212 and tire inside through fourth gas circuit 213, the revolution mechanic 1 of also being convenient for arranges in narrow and small space, and the route of fourth gas circuit 213 is shorter, the air current is carried unobstructed, gu fixed ring 220 can also be in its radially and axially for fourth gas circuit 213 resist compression, avoid fourth gas circuit 213 to warp.
In some embodiments of the present invention, when the inner ring 200 and the outer ring 100 are in an interference fit, for example, the sealing ring 230 is made of teflon, the interference between the inner ring 200 and the outer ring 100 is 0.25mm to 0.5mm according to the comprehensive conditions of teflon material characteristics, rotation resistance, assembly difficulty, working temperature, and the like. Therefore, the air tightness of the inner air path 210 can be further improved, the air flow is prevented from leaking from the gap between the inner ring 200 and the outer ring 100, the excessive rotation resistance and the overhigh temperature during relative rotation between the inner ring 200 and the outer ring 100 cannot be caused, the assembly is convenient, and the service life can be ensured.
The hardness of the inner circumferential surface of the outer ring 100 is 52 HRC-56 HRC, the roughness value is smaller than 1.6um, the inner ring 200 is in interference fit with the outer ring 100, the outer ring 100 is tightly attached to the sealing ring 230, the rebound of the sealing ring 230 can increase the rotation resistance between the outer ring 100 and the sealing ring 230 after assembly, the hardness of the inner circumferential surface of the outer ring 100 is set to be high, the service life of the outer ring 100 can be prolonged, the roughness value of the inner circumferential surface of the outer ring 100 is set to be low (for example, the roughness of the inner circumferential surface of the outer ring 100 can be 0.8), the rotation resistance between the outer ring 100 and the sealing ring 230 can be reduced, the abrasion of the inner circumferential surface of the outer ring 100 to the sealing ring 230 is reduced, and the service life of the sealing ring 230 is prolonged.
In this case, the hardness and smoothness of the inner circumferential surface of the outer ring 100 can be improved by plating chromium on the inner circumferential surface of the outer ring 100.
The wheel rim structure 2 according to the embodiment of the present invention is described below with reference to the drawings, and the wheel rim structure 2 includes a knuckle 400, a rotating structure 1, and a brake disc 500. Wherein the outer ring 100 is coupled to the knuckle 400, and the brake disc 500 is rotatably mounted to the knuckle 400 and coupled to the inner ring 200. That is, the outer race 100 and the knuckle 400 are kept stationary with the vehicle body, and the disc rotor 500, the inner race 200 and the tire rotate together.
According to the wheel rim structure 2 provided by the embodiment of the invention, the rotating structure 1 provided by the embodiment of the invention is utilized, so that real-time communication between an air source and the inner space of the tire can be realized, and the wheel rim structure has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
Further, knuckle 400 is constructed with the knuckle gas circuit, the knuckle gas circuit communicates with outer gas circuit 110 and gas source respectively, therefore, the air supply can communicate with outer gas circuit 110 through the knuckle gas circuit, thereby make the air supply can communicate with the inner space of tire, fill the gassing in real time with the realization tire, and the knuckle gas circuit also sets up the inside at knuckle 400, knuckle 400 can be for knuckle gas circuit resistance to compression, avoid the knuckle gas circuit to take place to warp, the air current flows more unobstructed.
Further, as shown in fig. 1, the wheel rim structure 2 further includes an air passage block 600, the air passage block 600 is respectively connected to the knuckle 400 and the outer ring 100, the air passage block 600 is provided with a transition air passage, and the transition air passage is communicated with the knuckle air passage and the outer air passage 110. Wherein, the gas circuit piece 600 can be fixed with the relative position of outer lane 100 and knuckle 400, and the transition gas circuit can communicate knuckle gas circuit and outer gas circuit 110, when fixed knuckle 400 and outer lane 100 positions, has realized the intercommunication of the inner space of air supply and tire, and in addition, the gas circuit piece 600 can also protect the transition gas circuit, avoids the transition gas circuit to warp.
In some embodiments of the present invention, as shown in fig. 1, the wheel rim structure 2 further includes a hub bearing 700, the hub bearing 700 includes a bearing inner ring 710 and a bearing outer ring 720, the bearing outer ring 720 rotatably sleeves the bearing inner ring 710, the bearing outer ring 720 is connected to the knuckle 400, the bearing inner ring 710 is connected to the brake disc 500, and the tire is mounted on the bearing inner ring 710. In this way, during the running of the vehicle, the relative rotation between the knuckle 400 and the tire can be achieved by using the hub bearing 700, thereby ensuring the stability of the straight running of the vehicle, the portability of the steering and reducing the wear between the tire and the parts of the vehicle.
The wheel rim structure 2 further comprises a mudguard 810 and a brake caliper 820, wherein the mudguard 810 and the brake caliper 820 are mounted on the steering knuckle 400, and the brake caliper 820 can be in contact with the brake disc 500 to prevent the bearing inner ring 710 and the bearing outer ring 720 from rotating relatively when a brake pedal is stepped on, so that the vehicle is braked. A mudguard 810 is located on the side of the brake disc 500 facing away from the hub bearing 700 to prevent dust and the like from adhering to the hub bearing 700 during vehicle driving.
The connection of the air supply to the inner space of the tyre is described below with reference to the accompanying drawings:
the air source passes through knuckle gas circuit and transition gas circuit, and the transition gas circuit is connected with outer gas circuit, and outer gas circuit passes through annular and air flue intercommunication, and the air flue communicates with the inner space of tire.
The inflation and deflation modes of the tire are described by way of example with reference to the accompanying drawings:
and (3) an inflation mode: through installing the tire information of the pressure sensor real-time supervision vehicle in inside the tire and sending tire information for central monitoring control module, when tire pressure is less than the pressure range of setting for in the preceding mode, central monitoring control module sends work order, open the pipeline solenoid valve that tire pressure is not enough, and open gas accuse air pressure valve air inlet pipeline through atmospheric pressure, the gas circuit reaches the braking assembly and accomplishes behind the gas circuit to the frame through revolution mechanic 1 and convert static state into rotation state to the tire, communicate the tire finally in order to inflate for the tire that the atmospheric pressure is not enough.
An air release mode: the central monitoring control module sends out a working instruction when the tire pressure is higher than a pressure range set in a previous mode, opens a pipeline electromagnetic valve with high tire pressure, opens an air outlet pipeline of an air control air pressure valve through the air pressure, and finally communicates the tire to deflate the tire with overhigh air pressure.
A vehicle according to an embodiment of the present invention, which includes the wheel rim structure 2 according to the above-described embodiment of the present invention, is described below with reference to the drawings.
According to the vehicle provided by the embodiment of the invention, the wheel edge structure 2 provided by the embodiment of the invention is utilized, so that the real-time communication between the air source and the inner space of the tire can be realized, and the vehicle has the advantages of long service life, high heat dissipation speed, convenience in maintenance and the like.
Other constructions and operations of the rotating structure 1, the wheel-rim structure 2 and the vehicle according to embodiments of the invention are known to a person skilled in the art and will not be described in detail here.
In the description herein, references to the description of "a particular embodiment," "a particular example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. A wheel rim structure, comprising:
the outer ring is suitable for being connected with a steering knuckle, an outer air passage is arranged on the outer ring and comprises a first air passage and a second air passage which are communicated, the outer ring comprises a main body and at least one mounting lug, the mounting lug is connected with the outer peripheral surface of the main body, the thickness of the mounting lug is smaller than the axial length of the main body, the other end of the second air passage penetrates through one surface of the mounting lug, a mounting step is formed between the thickness surface of the mounting lug and the outer peripheral surface of the outer ring, the first air passage penetrates through the inner peripheral surface and the outer peripheral surface of the main body, the second air passage is arranged on at least one mounting lug, and one end of the second air passage penetrates through one surface of the mounting lug, which is connected with the main body, so as to be communicated with the first air passage;
the inner ring is suitable for synchronously rotating with a tire, the inner ring is provided with an inner air passage, the inner air passage is suitable for being communicated with the inner space of the tire, the outer ring is rotatably sleeved on the inner ring, and the inner air passage and the outer air passage are configured to be communicated and sealed with each other when the inner ring and the outer ring keep relatively static and rotate relatively;
the steering knuckle is connected with the outer ring and is provided with a steering knuckle gas path, and the steering knuckle gas path is communicated with a gas source;
the air passage block is respectively connected with the steering knuckle and the outer ring, the air passage block is provided with a transition air passage, the air passage block is matched with the thickness surface of the mounting lug, the transition air passage is communicated with the steering knuckle air passage and the second air passage, and one end of the air passage block is abutted against the mounting step.
2. The wheel edge structure according to claim 1, wherein the second air passage includes:
the first air passage and the outer radial section are communicated and extend along the radial direction of the main body;
the outer axial section extends along the axial direction of the main body, one end of the outer axial section is communicated with the outer radial section, and the other end of the outer axial section penetrates through the thickness surface of the mounting ear.
3. The wheel edge structure according to claim 2, further comprising:
the plug is mounted on the mounting ear and inserted into the outer radial section so as to seal one end of the outer radial section, which faces away from the main body.
4. The wheel rim structure of claim 1, wherein the inner air passage comprises an air passage and a ring groove, the ring groove is formed in the outer circumferential surface of the inner ring and extends along the circumferential direction of the inner ring, the outer air passage is communicated with the ring groove, one end of the air passage is communicated with the ring groove, and the other end of the air passage is suitable for being communicated with the inner space of the tire.
5. The wheel rim structure according to claim 4, wherein the inner ring includes:
a fixing ring;
the sealing ring is sleeved on the fixing ring, the outer ring is rotatably sleeved on the sealing ring, and the elastic coefficient of the sealing ring is greater than that of the fixing ring;
wherein, the annular groove is located the outer peripheral face of sealing ring, the air flue link up solid fixed ring with the sealing ring.
6. The wheel rim structure of claim 5, wherein the outer circumferential surface of the fixing ring is provided with a rotation stopping boss, the inner circumferential surface of the sealing ring is provided with a rotation stopping groove, and the rotation stopping boss extends into the rotation stopping groove.
7. The wheel edge structure of claim 6, wherein a portion of the air passage is provided to the rotation stop boss.
8. The wheel edge structure according to claim 5, wherein each of the two side walls in the width direction of the ring groove is provided with a groove lip extending toward the other, the groove lips on the two side walls in the width direction of the ring groove are provided at intervals, and each of the groove lips is gradually inclined toward the outer ring from one end to the other end where it is fixed with the side wall of the ring groove.
9. The wheel rim structure according to claim 5, wherein a peripheral edge of the outer peripheral surface of the seal ring is provided with dust-proof lugs extending in a radial direction thereof.
10. The wheel rim structure of claim 5, wherein the air passage includes a third air passage and a fourth air passage that are communicated, the third air passage extends through the inner peripheral surface and the outer peripheral surface of the seal ring and communicates with the ring groove, and the fourth air passage extends through the outer peripheral surface and an end surface of the fixing ring.
11. The wheel edge structure according to claim 10, wherein the fourth air passage includes:
the inner radial section extends along the radial direction of the fixing ring and penetrates through the peripheral surface of the fixing ring to be communicated with the third air passage;
the inner axial section is arranged along the axial extension of the inner ring, one end of the inner axial section is communicated with the inner radial section, and the other end of the inner axial section penetrates through the end face of the fixing ring.
12. The wheel edge structure according to any one of claims 1 to 11, wherein the inner ring and the outer ring are in an interference fit.
13. The wheel edge structure according to claim 1, further comprising:
and the brake disc is rotatably arranged on the steering knuckle and is connected with the inner ring.
14. The wheel edge structure according to claim 13, further comprising:
the wheel hub bearing comprises a bearing inner ring and a bearing outer ring, the bearing inner ring is rotatably sleeved on the bearing outer ring, the bearing outer ring is connected with the steering knuckle, the bearing inner ring is connected with the brake disc, and the tire is arranged on the bearing inner ring.
15. A vehicle characterized by comprising the wheel rim structure according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302690.2A CN113733820B (en) | 2021-11-05 | 2021-11-05 | Rotating structure, wheel limit structure and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111302690.2A CN113733820B (en) | 2021-11-05 | 2021-11-05 | Rotating structure, wheel limit structure and vehicle |
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| CN113733820A CN113733820A (en) | 2021-12-03 |
| CN113733820B true CN113733820B (en) | 2022-04-15 |
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| CN202111302690.2A Active CN113733820B (en) | 2021-11-05 | 2021-11-05 | Rotating structure, wheel limit structure and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000035872A (en) * | 1996-08-30 | 2000-06-26 | 이퀘래어 시스템스 인코포레이티드 | Rotary air connection for tire inflation system |
| US6394159B1 (en) * | 2001-01-26 | 2002-05-28 | Meritor Heavy Vehicle Technology, Llc | Hub cap filter for tire inflation system |
| EP3103662A1 (en) * | 2015-06-12 | 2016-12-14 | Dana Heavy Vehicle Systems Group, LLC | Rotary joint air collector ring and the tire inflation system made therewith |
| CN106461084A (en) * | 2014-06-20 | 2017-02-22 | 德纳重型车辆系统集团有限责任公司 | Rotary joint assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140028016A1 (en) * | 2012-07-30 | 2014-01-30 | Dana Heavy Vehicle Systems Group, Llc | Rotary union for use with a fluid conduit |
| US20140096881A1 (en) * | 2012-10-08 | 2014-04-10 | Richard Loewe | Tire pressure maintenance device |
| US10807413B2 (en) * | 2017-02-02 | 2020-10-20 | Dana Heavy Vehicle Systems Group, Llc | Front axle wheel assembly and the tire inflation system made therewith |
-
2021
- 2021-11-05 CN CN202111302690.2A patent/CN113733820B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000035872A (en) * | 1996-08-30 | 2000-06-26 | 이퀘래어 시스템스 인코포레이티드 | Rotary air connection for tire inflation system |
| US6394159B1 (en) * | 2001-01-26 | 2002-05-28 | Meritor Heavy Vehicle Technology, Llc | Hub cap filter for tire inflation system |
| CN106461084A (en) * | 2014-06-20 | 2017-02-22 | 德纳重型车辆系统集团有限责任公司 | Rotary joint assembly |
| EP3103662A1 (en) * | 2015-06-12 | 2016-12-14 | Dana Heavy Vehicle Systems Group, LLC | Rotary joint air collector ring and the tire inflation system made therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113733820A (en) | 2021-12-03 |
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