阅读说明：本技术 拼接一体式消音轮毂 (Concatenation integral type amortization wheel hub ) 是由 沈文龙 于 2020-12-01 设计创作，主要内容包括：本发明公开了一种拼接一体式消音轮毂,轮辋的外圆周表面上、沿着面向轮辐的方向依次同轴心设有装胎面A和装胎槽,轮辐面向轮辋的一侧端面同轴心设有套管,套管的外圆周表面上、面向轮辐的一端同轴心设有装胎面B,套管的内圆周表面、位于装胎面B背向轮辐一侧的部位与轮辋的外圆周表面、位于装胎槽背向装胎面A一侧的部位固定,轮辋的外圆周表面、位于套管固定连接的区域设有至少一排消音槽,套管对应于消音槽分别设有通孔,消音槽和通孔形成亥姆霍兹共振器。从上述结构可知,本发明的拼接一体式消音轮毂,在轮毂上直接固定形成了亥姆霍兹共振器,避免亥姆霍兹共振器在车轮行驶中由于振动和转动的作用而与轮毂分离、进而消音作用失效。(The invention discloses a spliced integrated silencing hub, wherein a tire mounting surface A and a tire mounting groove are sequentially and coaxially arranged on the outer circumferential surface of a rim along the direction facing a spoke, a sleeve is coaxially arranged on the end surface of one side of the spoke facing the rim, a tire mounting surface B is coaxially arranged on the outer circumferential surface of the sleeve and one end of the sleeve facing the spoke, the inner circumferential surface of the sleeve and the part of the tire mounting surface B, which is positioned on one side opposite to the spoke, are fixed with the outer circumferential surface of the rim and the part of the tire mounting groove, which is positioned on one side opposite to the tire mounting surface A, at least one row of silencing grooves are arranged on the outer circumferential surface of the rim and the area fixedly connected with the sleeve, the sleeve is respectively provided with through holes corresponding to the silencing grooves, and the. According to the spliced integral type noise reduction hub, the helmholtz resonator is directly fixed on the hub to be formed, and the phenomenon that the helmholtz resonator is separated from the hub due to the vibration and rotation effects in the driving process of a wheel and further the noise reduction effect is invalid is avoided.)

1. Concatenation integral type amortization wheel hub, its characterized in that: the wheel rim comprises a rim (1) and a spoke (2) which are coaxially matched and fixed, wherein a tire mounting surface A (5) and a tire mounting groove (9) are sequentially and coaxially arranged on the outer circumferential surface of the rim (1) along the direction facing the spoke (2), a sleeve (13) is coaxially arranged on the end surface of one side, facing the rim (1), of the spoke (2), a tire mounting surface B (8) is coaxially arranged on the outer circumferential surface of the sleeve (13) and facing one end of the spoke (2), the inner circumferential surface of the sleeve (13), the part, located on one side, facing away from the spoke (2), of the tire mounting surface B (8), the outer circumferential surface of the rim (1) and the part, located on one side, facing away from the tire mounting surface A (5), of the tire mounting groove (9) are fixed, at least one row of sound-eliminating grooves (10) are arranged on the outer circumferential surface of the rim (1) and the area, located on the fixed connection of the sleeve (13), and the sleeve (13) is respectively, the inner diameter of the through hole (14) is smaller than that of the silencing groove (10), and the silencing groove (10) and the through hole (14) form a Helmholtz resonator.

2. The spliced integrated acoustic wheel hub of claim 1, wherein: the silencing grooves (10) in the same row are distributed in a centrosymmetric way by taking the axis of the rim (1) as the center.

3. The spliced integrated acoustic wheel hub of claim 1, wherein: the groove wall sealing device is characterized in that sealing strips (15) are fixedly connected to the groove openings of the groove wall (11) of the silencing groove (10) respectively, and the top of the groove wall (11) is in sealing connection with the corresponding positions of the inner wall of the sleeve (13) through the sealing strips (15).

4. The spliced integrated acoustic wheel hub of claim 1, wherein: a positioning snap ring A (16) is coaxially arranged at the edge of the inner wall of one end, back to the spoke (2), of the sleeve (13), and the positioning snap ring A (16) is clamped with a positioning annular snap groove A (17) which is coaxially arranged on the groove wall of one side, back to the tire surface A (5), of the tire loading groove (9); rim (1) is equipped with location snap ring B (19) towards the outer wall border of spoke (2) one end with the axle center, sleeve pipe (13) inner wall is equipped with location ring groove B (18) of matching with the axle center corresponding to location snap ring B (19), and when location snap ring A (16) and location ring groove A (17) joint, location snap ring B (19) and location ring groove B (18) just in time joint.

5. The spliced integrated acoustic wheel hub of claim 4, wherein: the utility model discloses a positioning clamping ring, including location ring groove A (17), location snap ring B (19), location ring groove B (18), location snap ring A (16) and the outside wall of location ring groove A (17) joint department form annular welding groove A to annular welding groove B and annular welding groove A all pass through welded fastening.

6. The spliced integrated acoustic wheel hub of claim 1, wherein: the outer side of the groove wall (11) of each silencing groove (10) is respectively provided with a cavity (12).

7. The spliced integrated acoustic wheel hub of claim 6, wherein: the width of the cavity (12) between two adjacent silencing grooves (10) is equal, and the width of the cavity (12) on the side of the silencing groove (10) in the outermost row back to other silencing grooves (10) is smaller than the width of the cavity (12) between two adjacent silencing grooves (10).

8. The spliced integrated acoustic wheel hub of claim 7, wherein: the cavity bottom of the cavity (12) is flush with the lower groove bottom of the silencing groove (10) adjacent to the cavity (12).

9. The spliced integrated noise reduction hub according to any one of claims 1 to 8, wherein: when the silencing grooves (10) are arranged in multiple rows, the silencing grooves (10) in each row are distributed along the axial direction of the rim (1).

10. The spliced integrated acoustic wheel hub of claim 9, wherein: the silencing frequencies of the silencing grooves (10) in the same row are the same, and the silencing frequencies of the silencing grooves (10) in all the rows are increased along the direction facing the spoke (2).

Technical Field

The invention relates to the technical field of silencing hubs for vehicles, in particular to a spliced integrated silencing hub.

Background

It is known that air column resonance generated in a tire air chamber formed between a tire and a rim of a wheel hub becomes a factor of load noise of an automobile. The air column resonance is a resonance phenomenon that random excitation input transmitted from a road surface to a tire tread during running vibrates air in a tire air chamber and occurs in the vicinity of a resonance frequency of the tire air chamber. Due to this resonance phenomenon, air column resonance noise is generated in the tire air chamber. The air column resonance noise is transmitted to the vehicle body via the suspension, and is sensed as load noise in the vehicle. As a hub for reducing such load noise, there have been proposed various structures provided with a helmholtz resonator having a sub air chamber communicating with a tire air chamber via a communication hole. However, when the hub rotates, a shock excitation input is generated to the tire when the tire tread is in contact with the ground. The prior solutions generally provide sound attenuation by adding a helmholtz resonator to the outer circumferential surface of the hub. However, this causes two problems, first, the helmholtz resonator is additionally fixed to the outer circumferential surface of the rim, and the helmholtz resonator may be separated from the hub and fall into the tire as the hub rotates and vibrates during the running of the vehicle; once the Helmholtz resonator falls into the tire, the Helmholtz resonator loses the silencing effect, and the Helmholtz resonator jumps along with the rotation of the wheel in the tire, so that the noise of the tire is increased, and the potential safety hazard of damaging the tire is also reduced; in addition, the added Helmholtz resonator is additionally fixed on the outer circumferential surface of the rim through some fixing modes, so that the motive balance of the hub is damaged; once the dynamic balance is damaged, the wheel body can vibrate more during the running process; and then further improved the hidden danger that helmholtz resonator and wheel hub drop the separation.

Disclosure of Invention

The invention aims to: the defects of the prior art are overcome, the spliced integrated silencing hub is provided, the silencing grooves are formed in the outer side face of the rim and are communicated with the through holes formed in the sleeve of the spoke, so that a Helmholtz resonator is directly fixed on the hub, the Helmholtz resonator is prevented from being separated from the hub due to the vibration and rotation during the driving of a wheel and further being silenced and disabled, and meanwhile, the Helmholtz resonator is prevented from falling into a tire to cause potential safety hazards; the silencing groove is machined in the rim, and the sleeve of the upper spoke is provided with the through hole, so that the machining is convenient, the machining cost is low, and the scale production is convenient; cavities are respectively arranged on two sides of the silencing groove, so that the influence on silencing of adjacent silencing grooves caused by the vibration of the groove wall when the silencing groove silences is avoided; the height of the cavity bottom of the cavity is flush with the lower groove bottom of the groove bottoms of the silencing grooves adjacent to the cavity, so that the intensity of the rim can be guaranteed to the greatest extent while the silencing effect of the silencing grooves adjacent to the cavity is guaranteed; the groove wall of the silencing groove is sealed with the inner wall of the sleeve through the sealing strip arranged at the top of the groove wall of the silencing groove, so that the silencing groove is only communicated with the corresponding through hole, and the silencing effect is ensured; the positioning clamping ring A is connected with the positioning annular clamping groove A, and the positioning clamping ring B is connected with the positioning annular clamping groove B, so that the clamping connection of the rim and the sleeve of the spoke is facilitated, and the rapid installation of the hub is facilitated; the welding is carried out through the welding groove at the clamping position of the sleeve of the rim and the spoke, so that the sleeve connection strength of the rim and the spoke is improved, and the influence of a welding seam on the attractiveness of the hub is avoided as much as possible; the multiple rows of silencing grooves extend from the groove wall on one side, back to the tire mounting surface A, of the tire mounting groove to the hump position of the spoke, so that the multiple rows of silencing grooves are formed as far as possible, and the noises of multiple audio frequencies are eliminated as far as possible; because the silencing device as the Helmholtz resonator is directly designed and produced with the rim of the hub and the sleeve of the spoke together, the dynamic balance state of the hub can be directly simulated by designing a rotating piece during design, processing and manufacturing, and therefore the dynamic balance performance and the silencing performance of the produced hub can be directly controlled on the premise that the processing quality meets the design requirement.

The technical scheme adopted by the invention is as follows:

concatenation integral type amortization wheel hub, including with the fixed rim of axle center matching and spoke, on the outer circumferential surface of rim, be equipped with dress tread A and dress child groove with the axle center in proper order along the direction towards the spoke, the spoke is equipped with the sleeve pipe with the axle center towards a side end face of rim, on the sheathed tube outer circumferential surface, be equipped with dress tread B with the axle center towards the one end of spoke, sheathed tube inner circumferential surface, be located dress tread B position and the outer circumferential surface of rim on one side of the spoke dorsad, be located dress child groove position on one side of tread A fixed dorsad, and the outer circumferential surface of rim, the region that is located sleeve pipe fixed connection are equipped with one row at least amortization groove, the sleeve pipe is equipped with the through-hole respectively corresponding to the amortization groove, the internal diameter of through-hole is less than the internal diameter of amortization groove, amorti.

The invention has the further improvement scheme that the silencing grooves in the same row are distributed in a centrosymmetric manner by taking the axis of the rim as the center.

The invention has the further improvement scheme that sealing strips are respectively and fixedly connected with the notches of the groove walls of the silencing grooves, and the sealing strips are used for sealing and connecting the tops of the groove walls with the corresponding positions of the inner wall of the sleeve.

According to a further improved scheme of the invention, the edge of the inner wall of one end, back to the spoke, of the sleeve is coaxially provided with a positioning snap ring A, and the positioning snap ring A is clamped with a positioning annular clamping groove A which is coaxially arranged on the groove wall of one side, back to the tire surface A, of the tire containing groove; the rim is equipped with location snap ring B towards the outer wall border of spoke one end with the axle center, the inside pipe wall is equipped with the location ring groove B that matches with the axle center corresponding to location snap ring B, and when location snap ring A and location ring groove A joint, location snap ring B just in time the joint with location ring groove B.

According to a further improved scheme of the invention, an annular welding groove A is formed on the outer side wall of the joint of the positioning clamp ring A and the positioning annular clamping groove A, an annular welding groove B is formed on the inner side wall of the joint of the positioning clamp ring B and the positioning annular clamping groove B, and the annular welding groove A and the annular welding groove B are fixed through welding.

The invention has the further improvement scheme that the outer side of the groove wall of each silencing groove is respectively provided with a cavity.

According to a further improvement scheme of the invention, the widths of the cavities between two adjacent silencing grooves are equal, and the width of the cavity on one side of the outermost row of silencing grooves back to other silencing grooves is smaller than the width of the cavity between two adjacent silencing grooves.

In a further development of the invention, the cavity bottom of the cavity is flush with the lower groove bottom of the sound-damping groove adjacent to the cavity.

According to a further improvement of the invention, when the silencing grooves are arranged in a plurality of rows, the silencing grooves in each row are distributed along the axial direction of the rim.

In a further improvement of the invention, the silencing frequency of the silencing grooves in the same row is the same, and the silencing frequency of the silencing grooves in each row increases along the direction facing the spoke.

According to a further improved scheme of the invention, a wheel rim A is arranged at one end of the tire mounting surface A, which is back to a spoke, and a flat peak is arranged at one end of the tire mounting surface A, which faces the spoke; the wheel rim is arranged at one end, back to the wheel rim, of the tire mounting surface B, and a hump is arranged at one end, facing the wheel rim, of the tire mounting surface B.

According to a further improvement scheme of the invention, an axle center hole is formed in the axle center of the spoke, and a plurality of mounting holes are uniformly distributed around the axle center hole.

The invention has the beneficial effects that:

according to the spliced integrated silencing hub, the silencing grooves are formed in the outer side face of the rim and are communicated with the through holes formed in the spoke sleeve, so that a Helmholtz resonator is directly fixed on the hub, the Helmholtz resonator is prevented from being separated from the hub due to vibration and rotation during driving of a wheel and further being silenced and invalid, and meanwhile potential safety hazards caused by the fact that the Helmholtz resonator falls into a tire are avoided.

Secondly, the spliced integrated silencing hub provided by the invention has the advantages that the silencing grooves are machined on the rim, the through holes are machined in the sleeve of the upper spoke, the machining is convenient, the machining cost is lower, and the large-scale production is convenient.

Thirdly, the two sides of the silencing groove of the spliced integral silencing hub are respectively provided with the cavity, so that the influence on the silencing of the adjacent silencing groove caused by the vibration of the groove wall when the silencing groove is used for silencing is avoided.

Fourthly, according to the spliced integrated silencing wheel hub disclosed by the invention, the cavity bottom height of the cavity is flush with the lower groove bottom in the groove bottoms of the silencing grooves adjacent to the cavity, so that the silencing effect of the silencing grooves adjacent to the cavity is ensured, and the strength of the wheel rim can be ensured as much as possible.

Fifth, according to the spliced integrated silencing hub, the groove wall of the silencing groove is sealed with the inner wall of the sleeve through the sealing strip arranged at the top of the groove wall of the silencing groove, so that the silencing groove is only communicated with the corresponding through hole, and the silencing effect is guaranteed.

Sixth, according to the spliced integrated silencing hub, the positioning clamping ring A is connected with the positioning annular clamping groove A, and the positioning clamping ring B is connected with the positioning annular clamping groove B, so that the rim and the spoke can be conveniently clamped, and the hub can be conveniently and rapidly installed.

Seventhly, the spliced integrated silencing hub disclosed by the invention is welded through the welding grooves at the clamping positions of the rim and the sleeve of the spoke, so that the sleeve connection strength of the rim and the spoke is improved, and the influence of a welding seam on the attractiveness of the hub is avoided as much as possible.

Eighth, according to the spliced integrated silencing hub, the multiple rows of silencing grooves extend from the groove wall on one side, back to the tire mounting surface A, of the tire mounting groove to the hump position of the spoke, so that the multiple rows of silencing grooves are formed as far as possible, and noises of multiple audio frequencies are eliminated as far as possible.

Ninth, according to the splicing integrated silencing hub of the present invention, since the silencing device as the helmholtz resonator is directly designed and manufactured together with the rim of the hub and the sleeve of the spoke, the dynamic balance state of the hub can be directly simulated by designing the rotating member during the design and manufacturing, and thus the dynamic balance performance and the silencing performance of the produced hub can be directly controlled on the premise that the processing quality meets the design requirement.

Description of the drawings:

FIG. 1 is a schematic front cross-sectional view of the present invention.

The specific implementation mode is as follows:

as can be seen from FIG. 1, the spliced integral type noise reduction hub of the invention comprises a rim 1 and a spoke 2 which are coaxially matched and fixed, a tire mounting surface A5 and a tire mounting groove 9 are coaxially arranged on the outer circumferential surface of the rim 1 along the direction facing the spoke 2 in sequence, a sleeve 13 is coaxially arranged on the end surface of one side of the spoke 2 facing the rim 1, a tire mounting surface B8 is coaxially arranged on the outer circumferential surface of the sleeve 13 and one end of the spoke 2, the inner circumferential surface of the sleeve 13 and the part of the tire mounting surface B8 on the side opposite to the spoke 2 are fixed with the outer circumferential surface of the rim 1 and the part of the tire mounting groove 9 on the side opposite to the tire mounting surface A5, at least one row of noise reduction grooves 10 are arranged on the outer circumferential surface of the rim 1 and the area fixedly connected with the sleeve 13, the sleeve 13 is respectively provided with through holes 14 corresponding to the noise reduction grooves 10, the inner diameter of the through holes 14 is smaller than, the silencing grooves 10 and the through holes 14 form Helmholtz resonators; the silencing grooves 10 in the same row are distributed in a centrosymmetric manner by taking the axis of the rim 1 as the center; the notches of the groove walls 11 of the silencing groove 10 are respectively and fixedly connected with a sealing strip 15, and the sealing strips 15 hermetically connect the top of the groove walls 11 with the corresponding positions of the inner wall of the casing 13; the inner wall edge of one end of the sleeve 13, which is back to the spoke 2, is coaxially provided with a positioning snap ring A16, and the positioning snap ring A16 is clamped with a positioning annular clamping groove A17 which is coaxially arranged on the groove wall of one side, which is back to the tire mounting surface A5, of the tire mounting groove 9; the rim 1 is provided with a positioning snap ring B19 at the edge of the outer wall facing one end of the spoke 2, the inner wall of the sleeve 13 is provided with a matched positioning annular clamping groove B18 at the same axis corresponding to the positioning snap ring B19, and when the positioning snap ring A16 is clamped with the positioning annular clamping groove A17, the positioning snap ring B19 is just clamped with the positioning annular clamping groove B18; the outer side wall of the joint of the positioning clamp ring A16 and the positioning annular clamping groove A17 forms an annular welding groove A, the inner side wall of the joint of the positioning clamp ring B19 and the positioning annular clamping groove B18 forms an annular welding groove B, and the annular welding groove A and the annular welding groove B are fixed through welding; the outer side of the groove wall 11 of each silencing groove 10 is respectively provided with a cavity 12; the widths of the cavities 12 between two adjacent silencing grooves 10 are equal, and the width of the cavity 12 on the side, back to other silencing grooves 10, of the silencing groove 10 in the outermost row is smaller than the width of the cavity 12 between two adjacent silencing grooves 10; the cavity bottom of the cavity 12 is flush with the lower groove bottom of the silencing groove 10 adjacent to the cavity 12; when the silencing grooves 10 are arranged in multiple rows, the silencing grooves 10 in each row are distributed along the axial direction of the rim 1; the muffling frequencies of the muffling slots 10 in the same row are the same, and the muffling frequencies of the muffling slots 10 in each row increase in the direction facing the spokes 2; the end, facing away from the spoke 2, of the tire mounting surface A5 is provided with a rim A3, and the end, facing the spoke 2, of the tire mounting surface A5 is provided with a flat peak 4; a flange B6 is arranged at one end, facing away from the rim 1, of the tread B8, and a hump 7 is arranged at one end, facing the rim 1, of the tread B8; the axle center of spoke 2 department is equipped with axle center hole 20, evenly distributed has a plurality of mounting holes 21 around axle center hole 20.

During assembly production, the silencing grooves 10 and the cavities 12 of the rim 1 are machined in groove shapes, the through holes 14 in the sleeve 13 of the spoke 2 are machined in hole shapes, the machining process is common and common, machining production is convenient, and production cost is low. The rim 1 and the sleeve 13 arranged on the spoke 2 are clamped, positioned and fixed and then welded and fixed, so that the production and assembly operation is relatively simple and convenient, the conventional production process is adopted, and the production cost is low. Through the Helmholtz resonator that the joint welding back formed, with rim 1 and the fixed hub structure as an organic whole that forms of back of spoke 2, so overcome present on the market concatenation integral type amortization wheel hub and be through the scheme that has additionally fixed the Helmholtz resonator on wheel hub and exist can lead to Helmholtz resonator and wheel hub separation owing to vibration and pivoted effect at the in-process of traveling, and then lead to the amortization inefficacy, and produce the technical problem of the potential safety hazard of traveling in addition. And the multiple rows of silencing grooves 10 can be used for silencing noises with different audios, so that the silencing effect is ensured. And meanwhile, the installation of the tire is not influenced. And the rim and the spoke which are used for splicing and fixing the hub are directly processed through numerical control equipment, so that the noise reduction effect and the dynamic balance effect can be directly ensured through calculation in the design of the hub.