CN111959186A - High-rigidity profiled steel wheel spoke structure - Google Patents
High-rigidity profiled steel wheel spoke structure Download PDFInfo
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- CN111959186A CN111959186A CN202010664484.5A CN202010664484A CN111959186A CN 111959186 A CN111959186 A CN 111959186A CN 202010664484 A CN202010664484 A CN 202010664484A CN 111959186 A CN111959186 A CN 111959186A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/14—Attaching disc body to hub ; Wheel adapters
- B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
- B60B3/165—Attaching disc body to hub ; Wheel adapters by bolts or the like with locking devices for the fixing means, e.g. screw or nut covers
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Abstract
A high-rigidity structural steel wheel spoke structure relates to the field of wheel structures and comprises a spoke bottom main body part, wherein the spoke bottom main body part comprises an outer ring body, a middle ring body and an inner ring body; the outer ring body, the middle ring body and the inner ring body are provided with an outer ring body plane A, a middle ring body plane A and an inner ring body plane A, and the two adjacent ring body planes A are in right-angle transition; the plane A of the outer ring body is provided with a plurality of first grooves, and the plurality of first grooves enable the outer ring body to form a plurality of outer ring body bosses; a plurality of bolt holes are arranged on the plane A of the middle ring body; a plurality of second grooves are formed on the inner ring plane A, and a plurality of inner ring bosses are formed on the inner ring by the plurality of second grooves; the plurality of outer ring body bosses and the plurality of inner ring body bosses are distributed in a staggered manner; the bolt holes are not in contact with the bosses of the outer ring body and the bosses of the inner ring body; through dividing into three segment body designs to spoke end main part for can be better laminating at locking spoke end main part and brake disc, reduce the deformation influence of spoke end main part.
Description
Technical Field
The invention relates to the field of wheel structures, in particular to a high-rigidity structural steel wheel spoke structure.
Background
The wheel is an important part of an automobile, the rigidity of the wheel directly influences the fatigue life of the wheel and the controllability of the whole automobile to a great extent, and the modeling steel wheel is mainly formed by assembling and welding a spoke and a rim, wherein the spoke comprises a spoke bottom main body part, a spoke part and a spoke ring connecting part; the spoke bottom main body part is used for being fixedly installed with the brake disc; the spoke ring connecting part is used for being assembled, welded and fixed with the wheel rim.
An engineer verifies and knows that the shape of a plane A of a spoke bottom main body part (for convenience of description, the surface where the spoke bottom main body part is attached to a brake disc is defined as the plane A of the spoke bottom main body part) is different from the shape of a standard plane A of the spoke bottom main body part when the spoke bottom main body part is tightly screwed with the brake disc, and the difference is that the plane A of the spoke bottom main body part is deformed and incompletely attached to the brake disc after the loading bolt is tightly screwed, so that the overall transverse rigidity of the wheel is reduced, and the bending fatigue life of the spoke is influenced due to the reduction of the rigidity, so that the spoke is cracked in advance during the driving process of the wheel.
Therefore, how to design the structure of the plane a of the main body portion of the spoke bottom is the direction of the efforts of engineers to break through the limitations of the prior art.
Disclosure of Invention
In view of the above problems, the present invention provides a new technical solution for solving the problem that the plane a of the spoke bottom main body part is not completely attached to the brake disc after actual installation.
The technical scheme provided by the invention is as follows:
a high-rigidity structural steel wheel spoke structure comprises a spoke bottom main body part with a central shaft hole, wherein the spoke bottom main body part comprises an outer ring body, a middle ring body and an inner ring body which have the same thickness; the outer ring body, the middle ring body and the inner ring body are provided with an outer ring body plane A, a middle ring body plane A and an inner ring body plane A, the outer ring body plane A is higher than the inner ring body plane A, the inner ring body plane A is higher than the middle ring body plane A, and two adjacent ring body planes A are in right-angle transition;
a plurality of first grooves with the same structure are arranged on the plane A of the outer ring body, and the first grooves are uniformly distributed on the plane A of the outer ring body in the circumferential direction to form a plurality of outer ring body bosses on the outer ring body;
a plurality of bolt holes are formed in the middle ring body plane A and are circumferentially and uniformly distributed on the middle ring body plane A;
a plurality of second grooves with the same structure are arranged on the inner ring plane A, and the plurality of second grooves are uniformly distributed on the inner ring plane A in the circumferential direction to form a plurality of inner ring bosses on the inner ring;
the plurality of outer ring body bosses and the plurality of inner ring body bosses are distributed in a staggered manner; the bolt holes are not in contact with the bosses of the outer ring body and the bosses of the inner ring body.
Furthermore, the height difference between the plane A of the outer ring body and the plane A of the middle ring body is L1, wherein L1 is more than 0.4mm and less than or equal to 0.6 mm.
Furthermore, the height difference between the inner ring body plane A and the middle ring body plane A is L2, wherein L1 is more than 0.1mm and less than or equal to 0.3 mm.
Furthermore, an outer ring body mounting surface inclined along the direction of the central axis is further arranged on the outer ring body boss, the inclination angle of the outer ring body mounting surface relative to the outer ring body plane A is alpha, and alpha is more than or equal to 1 degree and less than or equal to 1.5 degrees.
Furthermore, outer end parts are arranged at two ends of the outer ring body mounting surface, the outer end parts are inclined along the direction of the central axis and smoothly connected with the outer ring body mounting surface, the fall between the lowest point of the outer ring body mounting surface and the lowest point of the outer end parts is L3, wherein the L3 is more than or equal to 0.1mm and less than or equal to 0.2 mm.
Furthermore, the groove bottom of the first groove is higher than the middle ring body plane A, and the height difference between the groove bottom of the first groove and the middle ring body plane A is 0.1mm-0.15 mm.
Further, the bolt holes and the middle ring body plane A are in arc chamfer transition, and each bolt hole corresponds to the first groove; the groove bottom of the first groove is provided with a notch, a bolt hole tail rib portion is arranged in the notch, the bolt hole tail rib portion is connected with the groove bottom of the first groove in a smooth mode, and the lowest point of the bolt hole tail rib portion is lower than the groove bottom of the first groove.
Furthermore, the bolt holes with the arc chamfers are not in contact with the outer ring body boss and the inner ring body boss.
Furthermore, independent ribs are arranged between adjacent bolt holes, and the independent ribs are arranged on the plane A of the middle ring body and are not in contact with the bosses of the outer ring body and the bosses of the inner ring body.
Further, the wheel spoke structure also comprises a spoke part and a spoke ring connecting part; the spoke part comprises a spoke connection section and a plurality of spoke bodies which are uniformly distributed on the spoke connection section in the circumferential direction; the spoke connecting sections are smoothly connected with the outer ring body; the spoke body is smoothly connected with the spoke ring connecting part; heat dissipation holes are formed in the spoke bodies which are adjacent at intervals.
The beneficial effect that adopts this technical scheme to reach does:
through dividing into three sections body designs to the spoke end main part, outer ring body, well ring body and interior ring body promptly to do not coplane design to outer ring body plane A, well ring body plane A and interior ring body plane A respectively, make when utilizing bolt locking spoke end main part and brake disc, outer ring body plane A and interior ring body plane A can be better with the laminating of brake disc, reduce because the deformation influence of bolt locking to spoke end main part during to guarantee the rigidity and the intensity of wheel structure.
Drawings
Fig. 1 is a perspective view of a spoke construction according to the present invention from one perspective.
Fig. 2 is a perspective view of another perspective of the spoke construction of the present invention.
Fig. 3 is a structural view of a spoke bottom main body part only provided with an outer ring body, a middle ring body and an inner ring body part.
Fig. 4 is a sectional view B-B of fig. 3, showing the arrangement of the outer ring body, the middle ring body and the inner ring body.
Fig. 5 is a partially enlarged view of fig. 4.
Fig. 6 is a structural view of a spoke bottom main body part with a partial structure after the first groove and the second groove are processed.
Fig. 7 is a structural view of the completed spoke bottom main body part after bolt holes and independent ribs are processed.
Fig. 8 is a schematic plan view of the complete spoke bottom main body part.
FIG. 9 is a cross-sectional view C-C of FIG. 8, showing the arrangement of the bolt hole tail rib in the first groove.
Fig. 10 is a perspective view of the complete spoke bottom main body part.
Fig. 11 is a partial enlarged view of fig. 10, showing the structure of the boss of the gimbal body.
Fig. 12 is a schematic cross-sectional view taken along line D-D of fig. 11, showing the angle of inclination of the outer ring mounting surface to the outer ring plane.
Fig. 13 is a cross-sectional view of E-E of fig. 1, showing the cross-sectional configuration of the spoke.
Fig. 14 is a partially enlarged view of fig. 13, showing a connection structure of the first arc segment and the second arc segment.
Fig. 15 is a line graph of rubbing data obtained when the difference is 0.5 °.
Fig. 16 is a line graph of rubbing data obtained when the difference is 0.2 °.
Fig. 17 is a line graph of the bonding rates of L3 at different times.
Wherein: 10 spoke bottom main body parts, 11 shaft holes, 12 inner ring bodies, 13 middle ring bodies, 14 outer ring bodies, 15 bolt holes, 16 independent ribs, 20 spoke parts, 21 spoke connecting sections, 22 spoke bodies, 30 spoke ring connecting parts, 121 inner ring body plane A, 122 second grooves, 131 middle ring body plane A, 141 outer ring body plane A, 142 first grooves, 151 bolt hole tail rib parts, 1200 inner ring body lug bosses, 1400 outer ring body lug bosses, 1400-1 outer ring body mounting surfaces and 1400-2 outer end parts.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The present embodiment proposes a high-rigidity structural steel wheel spoke structure, and referring to fig. 1-2, the spoke structure is composed of a spoke bottom main body portion 10, a spoke portion 20 and a spoke ring connecting portion 30, wherein the spoke bottom main body portion 10 is used for mounting and fixing with a brake disc (not shown); the spoke ring connecting portion 30 is used for welding and fixing with a wheel rim (not shown), the spoke portion 20 is arranged between the spoke bottom main body portion 10 and the spoke ring connecting portion 30, and the strength and the rigidity of the wheel are improved by supporting force provided by each spoke body 22 in the spoke portion 20.
In the present embodiment, the spoke bottom main body portion 10 has a disk-shaped structure, and a shaft hole 11 having a central axis i is provided at the center of the spoke bottom main body portion 10, and the shaft hole 11 is used for axial attachment to a wheel rim.
Referring to fig. 3 to 5, the spoke bottom main body 10 is composed of three ring bodies, namely, an outer ring body 14, a middle ring body 13 and an inner ring body 12, and for convenience of description later, a plane a is defined as a surface of the spoke bottom main body 10 opposite to a brake disc (not shown), so that it can be understood that: the outer ring body 14 has an outer ring body plane a 141; the middle ring 13 has a middle ring plane a 131; the inner ring 12 has an inner ring plane a 121; the inner ring plane a121, the middle ring plane a131 and the outer ring plane a141 together constitute a plane a of the spoke bottom main body portion 10.
The thickness of the middle and outer ring bodies 14, the thickness of the middle ring body 13 and the thickness of the inner ring body 12 are the same, but the middle ring body and the inner ring body are not arranged in a coplanar manner, namely, height differences exist among the three ring bodies, and the three ring bodies are arranged in a layered manner to realize tight fit when the middle and outer ring bodies are installed in a matched manner with a brake disc; the arrangement of the fall between the three ring bodies is obtained according to rubbing tests, that is, the plane a141 of the outer ring body is higher than the plane a121 of the inner ring body, and the plane a121 of the inner ring body is higher than the plane a131 of the middle ring body, it can be understood that in this embodiment, the plane a131 of the middle ring body is the lowest, and the plane a141 of the outer ring body is the highest; and be the right angle transition between two adjacent ring body planes A, adopt the mode of right angle transition to compare in adopting traditional circular arc transition, the mode of right angle transition makes to process still less between adjacent ring body, does not destroy the structure of junction between the ring body, does benefit to and maintains rigidity and stability between the adjacent ring body.
Specifically, referring to fig. 5, the height difference between the outer ring plane a141 and the middle ring plane a131 is L1, wherein 0.4mm < L1 is not less than 0.6mm, and the height difference between the inner ring plane a121 and the middle ring plane a131 is L2, wherein 0.1mm < L2 is not more than 0.3 mm.
In the embodiment, the L1 is 0.6mm, and the L2 is 0.3 mm.
In order to realize the adaptation with the installation surface of the brake disc, referring to fig. 6, the structures of the outer ring plane a141 and the inner ring plane a121 are further designed, that is, a plurality of first grooves 142 with the same structure are arranged on the outer ring plane a 141; the first grooves 142 are circumferentially and uniformly distributed on the outer ring body plane a141, so that the outer ring body 14 is formed with a plurality of outer ring body bosses 1400; a plurality of second grooves 122 with the same structure are arranged on the inner ring plane a121, and the plurality of second grooves 122 are circumferentially and uniformly distributed on the inner ring plane a121, so that a plurality of inner ring bosses 1200 are formed on the inner ring 12; the plurality of outer ring projections 1400 and the plurality of inner ring projections 1200 are disposed in a staggered manner.
Referring to fig. 7, in the embodiment, a bolt hole 15 is disposed on the middle ring body plane a131, a plurality of bolt holes 15 are disposed on the middle ring body plane a131, the plurality of bolt holes 15 are circumferentially and uniformly distributed on the middle ring body plane a131, and each bolt hole 15 and the middle ring body plane a131 are in arc chamfer transition; independent ribs 16 are arranged between the adjacent bolt holes 15, the independent ribs 16 are arranged on the plane A131 of the middle ring body and are not in contact with the bosses 1400 of the outer ring body and the bosses 1200 of the inner ring body, and the independent ribs 16 are arranged between the bolt holes 15 and are favorable for strengthening the strength and rigidity of the whole middle ring body 13.
In this embodiment, the bolt holes 15 are not in contact with the outer ring body boss 1400 and the inner ring body boss 1200, and it can be understood that the outer ring body boss 1400, the inner ring body boss 1200 and the bolt holes 15 all have a certain interval therebetween to ensure the independence of the three; the purpose of this setting is in order to prevent that when the bolt locks, locking stress directly transmits to outer ring body boss 1400 and/or interior ring body boss 1200 through bolt hole 15 for the compressive stress of outer ring body boss 1400 and the interior ring body boss 1200 near the position of bolt hole 15 differs too much with the compressive stress of other positions, makes outer ring body boss 1400 and interior ring body boss 1200 take place great fatigue deformation, influences the laminating effect with the brake disc.
Through the mode that adopts outer ring body boss 1400 and interior ring body boss 1200 to cooperate bolt hole 15 again to realize the laminating installation of spoke end main part 10 and brake disc, when utilizing the bolt to wear to establish bolt hole 15 locking spoke end main part 10, outer ring body boss 1400 and interior ring body boss 1200 can effectually laminate with the brake disc, make outer ring body boss 1400 and interior ring body boss 1200 receive the effect of comparatively balanced pressure stress all the time, avoid the part warpage to appear, make stress amplitude less, can not take place to make whole spoke end main part 10 take place fatigue failure because of the effect of drawing pressure alternating stress.
Optionally, the groove bottom of the first groove 142 is higher than the middle ring body plane a131, and the height difference between the groove bottom and the middle ring body plane a131 ranges from 0.1mm to 0.15 mm; the groove bottom of the second groove 122 is coplanar with the middle ring body plane a 131.
In this embodiment, referring to fig. 6, the first grooves 142 are rectangular grooves, and the total number of the first grooves 142 is five, so that the number of the formed outer ring bosses 1400 is five; the second grooves 122 are fan-shaped grooves, specifically, the fan-shaped grooves are fan-shaped structures formed by taking the central axis i as the center of a circle, and five second grooves 122 are also provided, so that five inner ring bosses 1200 are formed; the bolt holes 15 described herein are similarly provided with five; the five outer ring bosses 1400, the five bolt holes 15 and the five inner ring bosses 1200 cooperate together to achieve the attachment of the plane a of the spoke bottom main body portion 10 to the brake disc.
Optionally, the circle center angle of the second groove 122 of the fan-shaped structure is 38 ° to 50 °, and the circle center angle adopted in this embodiment is 42 °.
In this embodiment, referring to fig. 7 to 9, in order to ensure the bonding effect between the outer ring body boss 1400 and the brake disc and further reduce the influence of the locking compressive stress on the outer ring body boss 1400, the bolt holes 15 formed on the middle ring body plane a131 correspond to the first grooves 142; the correspondence here specifically means that, on the projection plane, each bolt hole 15 and the first groove 142 are on a radial line with the central axis i as the center; a notch is formed in the bottom of the first groove 142, a bolt hole tail rib portion 151 is formed in the notch, the bolt hole tail rib portion 151 is in smooth connection with the bottom of the first groove 142, and the lowest point of the bolt hole tail rib portion 151 is lower than the bottom of the first groove 142.
It can be understood that bolt hole tail rib portion 151 is disposed in the gap at the bottom of first groove 142, such that bolt hole tail rib portion 151 and outer ring body boss 1400 have a first groove 142 bottom therebetween, which is equivalent to bolt hole tail rib portion 151, first groove 142 bottom and outer ring body boss 1400 forming a similar step-like structure, with the highest being outer ring body boss 1400, the next being first groove 142 bottom and the lowest being bolt hole tail rib portion 151.
In setting up bolt hole tail rib portion 151 to be less than the breach of first recess 142 tank bottom, when utilizing the bolt to pass bolt hole 15 and locking, loading compressive stress can spread to bolt hole tail rib portion 151 department around bolt hole 15, but because there is first recess 142 tank bottom between bolt hole tail rib portion 151 and outer annular body boss 1400, locking stress will directly transmit the tank bottom of first recess 142 through bolt hole tail rib portion 151 when the transmission, it is unbalanced to avoid locking stress that leads to outer annular body boss 1400 to bear on directly transmitting outer annular body boss 1400, the existence of first recess 142 can the partial possibility of taking place deformation of outer annular body boss 1400 of effectual reduction.
Of course, there may still be bending loading force transmitted to the outer ring body boss 1400, but the loading stress transmitted to the outer ring body boss 1400 through the reduction of the groove bottom of the first groove 142 is in a balanced state with a small difference, and there is almost no possibility of deformation of the outer ring body boss 1400, and the compressive stress in the balanced state may make the outer ring body boss 1400 better fit to the brake disc.
Through setting up in the breach of first recess 142 tank bottom near bolt hole tail muscle portion 151 of outer annular body boss 1400, avoid unbalanced loading stress directly to transmit the possibility that leads to its partial deformation on outer annular body boss 1400 to the laminating of outer annular body boss 1400 and brake disc has been guaranteed, the life of extension spoke.
In order to make the outer ring boss 1400 perfectly fit in an ideal state in the locked state, the structure of the outer ring boss 1400 is further optimized in this embodiment, and the integrity of the fit is ensured.
Specifically, referring to fig. 10 to 12, the outer ring body boss 1400 is further provided with an outer ring body mounting surface 1400-1 inclined along the central axis i direction, the inclination angle of the outer ring body mounting surface 1400-1 relative to the outer ring body plane a141 is α, and the adhesion rate of the brake disc to the different inclination angles α in the rubbing test is recorded:
rubbing tests were carried out with a difference of 0.5 °:
a line graph is drawn from the rubbing data obtained when the difference is 0.5 °, see fig. 15:
in the line graph, the outer ring body mounting surface 1400-1 which is inclined at a certain angle on the outer ring body boss 1400 is beneficial to the bonding with the brake disc surface, and specific data show that the bonding rate is in an ascending trend when the inclination angle alpha is 0-2 degrees; however, since the adhesion rate gradually decreases as the inclination angle α gradually increases, it can be seen that the inclination angle α is 0 ° to 2 °, which is helpful to ensure the adhesion tightness of the outer ring projection 1400.
To further verify the accuracy of the above test, a further test was carried out with an angular difference of 0.2 °:
a line graph is drawn from the rubbing data obtained when the difference is 0.2 °, see fig. 16:
therefore, it was further confirmed that the adhesion rate showed a significant tendency to increase at the inclination angle α of 0 ° to 1.5 ° and showed a non-significant fluctuation at 1.5 ° to 2.5 °, but the best adhesion effect was still obtained.
In comprehensive consideration, the range of the inclination angle α is 1 ° to 2.5 °, i.e., α is greater than or equal to 1 ° and less than or equal to 2.5 ° to ensure a better fitting effect.
However, in actual machining, the inclination angle α may not be controlled perfectly accurately, and there is a partial error, so that the actual α controlled in the actual machining process is 1 ° to 1.5 °, so that even if α is slightly larger than 1.5 ° due to an error in machining, it is still satisfactory as long as it does not exceed 2.5 °.
Optionally, not only the outer ring body mounting surface 1400-1 with the inclination angle α may be adopted, but also the outer ring body mounting surface 1400-1 may be further structurally optimized, so as to strive for making the attachment effect of the outer ring body boss 1400 as close to 100% or up to 100%, that is, the outer end 1400-2 is provided at both ends of the outer ring body mounting surface 1400-1, the outer end 1400-2 is continuously inclined along the central axis i direction and smoothly connected with the outer ring body mounting surface 1400-1, the difference between the lowest point in the middle of the outer ring body mounting surface 1400-1 and the lowest point of the outer end 1400-2 is L3 (it can be understood that the height between the lowest point in the middle of the inclined plane of the outer ring body mounting surface 1400-1 and the middle ring body plane a131 is h1, the height between the outer end 1400-2 and the middle, l3 ═ h1-h 2); by further inclining both ends of the outer ring body mounting surface 1400-1 having the inclination angle α, the entire outer ring body mounting surface 1400-1 is made to be an irregular plane to further enhance the bonding rate.
Rubbing test was performed on the outer ring body mounting surface 1400-1 having the outer end portion 1400-2:
the line graph is drawn according to the above table, i.e. see fig. 17:
obviously, when the L3 is more than or equal to 0.1mm and less than or equal to 0.2mm, the bonding rate is promoted to reach 99.5 percent and is more close to 100 percent.
In summary, in the embodiment, the bolt hole tail rib 151 is disposed in the first groove 142, so that the bending loading stress is prevented from being directly transmitted to the outer ring boss 1400, and the stress is unbalanced and deformed to affect the attaching effect; moreover, an inclined outer ring body mounting surface 1400-1 is arranged on the outer ring body boss 1400, and a further inclined outer end portion 1400-2 is arranged on the outer ring body mounting surface 1400-1, so that the bonding effect of the outer ring body boss 1400 and the brake disc is improved, and the bonding effect is close to perfect; the perfect fit of outer annular body boss 1400 and brake disc has not only reduced the fatigue fracture rate of outer annular body boss 1400, can also further guarantee the life of whole spoke.
Referring to fig. 13, the spoke portion 20 of the wheel spoke structure in the present embodiment includes a spoke attachment section 21 and a plurality of spoke bodies 22 uniformly distributed circumferentially on the spoke attachment section 21; the spoke connecting sections 21 are smoothly connected with the outer ring body 14; the spoke body 22 is smoothly connected with the spoke ring connecting part 30.
In this embodiment, the spoke body 22 is further optimized in structure, because the spoke body 22 is the most stressed part of the whole spoke, and the cracking part of the spoke is basically found on the spoke body 22 in the bending loading test.
The spoke structure is described in published patent documents CN105109272A, CN104070918A and CN104812590A, but it is found in research that the spoke cross-sectional structure design is almost the same, and in short, the combination of straight line section 221+ circular arc section 222+ straight line section 223+ circular arc section 224 is adopted.
In the scheme, the spoke body 22 is designed to be composed of six sections of structures, namely a combination mode of a straight section 221, an arc section 222, a first arc section 222-1, a second arc section 222-2, a straight section 223 and an arc section 224; the first arc section 222-1 and the second arc section 222-2 are tangent to form a "" structure arranged between the arc section 222 and the straight line section 223.
It can be understood that two sections of circular arc sections (a first circular arc section and a second circular arc section) are additionally arranged between the circular arc section 222 and the straight line section 223, so that a transitional fluctuation step is formed, the rigidity and the strength of the structure of the whole spoke body 22 are enhanced, in order not to influence the smooth bending of the whole spoke body 22, the radius ranges of the first circular arc section 222-1 and the second circular arc section 222-2 are controlled to be 20-40 mm, and the lifting effect verification of the rigidity and the strength is carried out by utilizing a bending loading test:
through the recorded comparison of the data, the effect of the different radiuses of the first circular arc segment 222-1 and the second circular arc segment 222-1 on the improvement of the rigidity of the whole spoke body 22 is different, and the improvement is not linear or has a certain regular improvement, but according to the analysis of the data, it is obvious that: the radius r2 of the first circular arc section 222-1 is 25-40 mm while the radius r1 of the first circular arc section 222-1 is 25-30 mm, the lifting effect verification is most obvious, and the lifting range of the rigidity and the strength of the spoke body can be about 10% -20%.
Referring to fig. 14, in the specific embodiment of the present embodiment, the radius r1 of the first circular arc segment 222-1 is designed to be 26mm, and the radius r2 of the second circular arc segment 222-2 is designed to be 30mm, so as to enhance the strength and rigidity of the spoke body and reduce the possibility of cracking of the spoke body.
Preferably, heat dissipation holes are formed at intervals between adjacent spoke bodies 22, and the heat dissipation holes also have the purpose of reducing weight.
Preferably, an inverted triangular-like reinforcement rib is provided between adjacent spoke bodies to ensure stability of each spoke body 22.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A high-rigidity structural steel wheel spoke structure is characterized by comprising a spoke bottom main body part (10) with a shaft hole (11), wherein the shaft hole (11) is provided with a central shaft i; the spoke bottom main body part (10) comprises an outer ring body (14), a middle ring body (13) and an inner ring body (12) which have the same thickness; the outer ring body (14), the middle ring body (13) and the inner ring body (12) are respectively provided with an outer ring body plane A (141), a middle ring body plane A (131) and an inner ring body plane A (121), the outer ring body plane A (141) is higher than the inner ring body plane A (121), the inner ring body plane A (121) is higher than the middle ring body plane A (131), and two adjacent ring body planes A are in right-angle transition;
a plurality of first grooves (142) with the same structure are arranged on the outer ring body plane A (141), and the plurality of first grooves (142) are uniformly distributed on the outer ring body plane A (141) in the circumferential direction to enable the outer ring body (14) to form a plurality of outer ring body bosses (1400);
a plurality of bolt holes (15) are formed in the middle ring body plane A (131), and the bolt holes (15) are circumferentially and uniformly distributed on the middle ring body plane A (131);
a plurality of second grooves (122) with the same structure are arranged on the inner ring plane A (121), and the plurality of second grooves (122) are uniformly distributed on the inner ring plane A (121) in the circumferential direction to form a plurality of inner ring bosses (1200) on the inner ring (12);
the plurality of outer ring bosses (1400) and the plurality of inner ring bosses (1200) are distributed in a staggered manner; the bolt holes (15) are not in contact with the outer ring body boss (1400) and the inner ring body boss (1200).
2. A high rigidity structural steel wheel spoke structure according to claim 1, wherein the difference in height between the outer ring body plane a (141) and the middle ring body plane a (131) is L1, wherein 0.4mm < L1 ≦ 0.6 mm.
3. A high rigidity structural steel wheel spoke structure according to claim 2, wherein the difference in height between the inner ring body plane a (121) and the middle ring body plane a (131) is L2, wherein 0.1mm < L2 ≦ 0.3 mm.
4. A high rigidity structural steel wheel spoke structure according to claim 1, wherein an outer ring body mounting surface (1400-1) inclined in the direction of the central axis i is further provided on the outer ring body projection (1400), the outer ring body mounting surface (1400-1) being inclined at an angle α with respect to the outer ring body plane a (141), wherein α is 1 ° or more and 1.5 ° or less.
5. The high-rigidity structural steel wheel spoke structure of claim 4, wherein outer end portions (1400-2) are arranged at two ends of the outer ring body mounting surface (1400-1), the outer end portions (1400-2) are inclined along the direction of the central axis i and smoothly connected with the outer ring body mounting surface (1400-1), the difference between the lowest point in the middle of the outer ring body mounting surface (1400-1) and the lowest point of the outer end portions (1400-2) is L3, and L3 is more than or equal to 0.1mm and less than or equal to 0.2 mm.
6. A high rigidity structural steel wheel spoke structure according to claim 1 or 5, wherein a groove bottom of the first groove (142) is higher than the middle ring body plane A (131) and has a height difference of 0.1mm to 0.15mm from the middle ring body plane A (131).
7. A high stiffness structural steel wheel spoke structure according to claim 6, wherein the bolt holes (15) are in circular arc chamfer transition with the middle ring body plane A (131) and each bolt hole (15) corresponds to the first groove (142); the groove bottom of the first groove (142) is provided with a notch, a bolt hole tail rib portion (151) is arranged in the notch, the bolt hole tail rib portion (151) is connected with the groove bottom of the first groove (142) in a smooth mode, and the lowest point of the bolt hole tail rib portion (151) is lower than the groove bottom of the first groove (142).
8. The high-rigidity structural steel wheel spoke structure of claim 7, wherein the bolt holes (15) with the circular arc chamfers are not in contact with the outer ring body boss (1400) and the inner ring body boss (1200).
9. The structural steel wheel spoke structure with high rigidity as claimed in claim 8, wherein independent ribs (16) are arranged between adjacent bolt holes (15), and the independent ribs (16) are arranged on the middle ring body plane A (131) and are not in contact with the outer ring body boss (1400) and the inner ring body boss (1200).
10. A high rigidity structural steel wheel spoke structure according to claim 1, wherein the wheel spoke structure further includes spoke portions (20) and spoke ring connecting portions (30); the spoke portion (20) comprises a spoke connection section (21) and a plurality of spoke bodies (22) which are uniformly distributed on the spoke connection section (21) in the circumferential direction; the spoke connecting sections (21) are smoothly connected with the outer ring body (14); the spoke body (22) is smoothly connected with the spoke ring connecting part (30); heat dissipation holes are formed by spacing the adjacent spoke bodies (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010664484.5A CN111959186A (en) | 2020-07-10 | 2020-07-10 | High-rigidity profiled steel wheel spoke structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010664484.5A CN111959186A (en) | 2020-07-10 | 2020-07-10 | High-rigidity profiled steel wheel spoke structure |
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| CN111959186A true CN111959186A (en) | 2020-11-20 |
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| CN202010664484.5A Pending CN111959186A (en) | 2020-07-10 | 2020-07-10 | High-rigidity profiled steel wheel spoke structure |
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| CN104812590A (en) * | 2012-11-06 | 2015-07-29 | 马克西昂轮毂德国控股公司 | Wheel for passenger vehicle |
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| CN109226437A (en) * | 2018-09-27 | 2019-01-18 | 南京迈森精密模具有限公司 | A kind of big ventilation hole steel-spoke and its blanking method |
| CN109747332A (en) * | 2018-12-17 | 2019-05-14 | 东风汽车车轮随州有限公司 | A kind of design method at high-durability spoke spoke bottom |
| CN111252043A (en) * | 2020-03-03 | 2020-06-09 | 山东丽驰新能源汽车有限公司 | Brake assembly and wheel hub |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356003A (en) * | 2009-03-17 | 2012-02-15 | 都美工业株式会社 | Wheel for automobile |
| CN102905911A (en) * | 2010-05-21 | 2013-01-30 | 中央精机株式会社 | Wheel for automobile |
| CN104812590A (en) * | 2012-11-06 | 2015-07-29 | 马克西昂轮毂德国控股公司 | Wheel for passenger vehicle |
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Application publication date: 20201120 |