CN217347339U

CN217347339U - Wheel spoke

Info

Publication number: CN217347339U
Application number: CN202220601913.9U
Authority: CN
Inventors: 李波; 马鸣图; 李靖伟; 周鹏; 王楠
Original assignee: Zhongxin Chongqing Ultra High Strength Material Research Institute Co ltd
Current assignee: Zhongxin Chongqing Ultra High Strength Material Research Institute Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-09-02
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a wheel spoke, spoke frame including annular radials and round platform form, the osculum end of spoke frame is connected with the outer lane edge of annular radials, be connected through forward arc ring and reverse arc ring between the osculum end of spoke frame and the annular radials, the interior cambered surface of forward arc ring is towards the inside region of spoke frame, the extrados of reverse arc ring is towards the inside region of spoke frame, the inner circle edge of forward arc ring is tangent and is connected with the outer lane edge of annular radials, the outer lane edge of forward arc ring is tangent and is connected with the inner circle edge of reverse arc ring, the outer lane edge of reverse arc ring is tangent and is connected with the osculum end of spoke frame. The wheel has the remarkable effects that the stress of the mounting screw hole part of the spoke frame can be reduced, the possibility of fatigue cracking of the mounting screw hole is reduced, the rigidity of the mounting surface of the spoke frame is improved, the deformation resistance is increased, and the fatigue performance of the wheel is improved.

Description

Wheel spoke

Technical Field

The utility model relates to an auto-parts, concretely relates to auto wheel accessory.

Background

Under the influence of energy conservation, emission reduction and low-carbon environmental protection concepts, the light weight of the automobile is more and more emphasized by consumers and manufacturers, and the main guiding idea is to design each assembly part in a light-weight and energy-saving manner on the basis of ensuring stable performance improvement. The automobile hub is used for bearing the whole weight of an automobile body, and is matched with the tire to support the automobile and ensure the walking of the automobile; the light weight of the wheel hub is realized by adopting specific high-strength steel, so that the structural strength of the wheel hub is ensured while the weight reduction purpose is achieved; on the other hand, the structural design of the hub is optimized, stress distribution is balanced, stress concentration at the weak part of the structure is reduced, the strength and the rigidity of the key structure are improved, and the method is also an important means for further reducing the weight of the hub.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wheel spoke, its technical scheme as follows:

the utility model provides a wheel spoke, includes the spoke frame of the annular radials and round platform form, the osculum end of spoke frame with the outer lane edge connection of annular radials, the spoke frame is located one side of annular radials, its main points are:

connect through forward arc ring and reverse arc ring between the osculum end of spoke frame and the annular radials, arc transition between the inner circle edge of forward arc ring and the outer lane edge, the intraductal cambered surface orientation of forward arc ring the inside region of spoke frame, arc transition between the inner circle edge of reverse arc ring and the outer lane edge, the extrados orientation of reverse arc ring the inside region of spoke frame, the inner circle edge of forward arc ring with the outer lane edge of annular radials is tangent and is connected, the outer lane edge of forward arc ring with the inner circle edge of reverse arc ring is tangent and is connected, the outer lane edge of reverse arc ring with the osculum end of spoke frame is tangent and is connected.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a cross-sectional view B-B of FIG. 1;

FIG. 3 is a schematic view of the structure of embodiment 2;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is an enlarged view of section i of FIG. 4;

FIG. 6 is a schematic view of the connection relationship of the annular web 1, the forward arc ring 25, the reverse arc ring 24 and the spoke frame 2;

fig. 7 is a schematic view showing the connection relationship of the spoke frame 2, the first arc-shaped ring 21, the second arc-shaped ring 22, the third arc-shaped ring 23 and the welding cylinder 4 in embodiment 2;

fig. 8 is a schematic view showing the connection relationship between the sinker ring 26, the bent portion 27 and the spoke frame 2;

FIG. 9 is a schematic view showing the connection of the annular web 1, the forward arcuate rings 25 and the spoke frames 2 in example 3;

FIG. 10 is a stress distribution plot of the wheel hub of example 2 as analyzed for bending behavior;

FIG. 11 is a stress distribution plot of the wheel hub of example 3 subjected to bending behavior analysis.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

Example 1:

the utility model provides a wheel spoke, as shown in FIG. 1 and FIG. 2, including the spoke frame 2 of the annular radials 1 and round platform form, the osculum end of spoke frame 2 with the outer lane edge connection of annular radials 1, spoke frame 2 is located one side of annular radials 1, be connected through forward arc ring 25 and reverse arc ring 24 between the osculum end of spoke frame 2 and the annular radials 1, arc transition between the inner circle edge of forward arc ring 25 and the outer lane edge, the intrados orientation of forward arc ring 25 the inside region of spoke frame 2, arc transition between the inner circle edge of reverse arc ring 24 and the outer lane edge, the extrados orientation of reverse arc ring 24 the inside region of spoke frame 2, the inner circle edge of forward arc ring 25 with the outer lane edge of annular radials 1 is tangent and is connected, the outer lane edge of forward arc ring 25 with the inner circle edge of reverse arc ring 24 is tangent and is connected, the outer ring edge of the reverse arc-shaped ring 24 is tangent and connected with the small end of the spoke frame 2.

Wind holes 2a are circumferentially and uniformly distributed in the spoke frame 2, the wind holes 2a are waist-shaped holes, and long axes of the waist-shaped holes extend circumferentially along the spoke frame 2; arbitrary adjacent two between wind hole 2a be equipped with boss 2b on the spoke frame 2, boss 2b is located spoke frame 2's lateral surface, boss 2b includes little semicircle portion, trapezoidal portion and major semicircle portion, trapezoidal portion is isosceles trapezoid shape, the direction of height and the round platform form of trapezoidal portion spoke frame 2's generating line direction is parallel, the sharp edge of little semicircle portion with the shorter base of trapezoidal portion matches and connects, the sharp edge of major semicircle portion with the longer base of trapezoidal portion matches and connects, little semicircle portion is towards the round platform form spoke frame 2's osculum end, major semicircle portion is towards the round platform form spoke frame 2's macrostoma end.

The inner ring edge and the outer ring edge of the forward arc-shaped ring 25 are in arc transition, the arc radius R5 is 10-20mm, and the arc length L5 is 15-20 mm;

the inner ring edge and the outer ring edge of the reverse arc-shaped ring 24 are in arc transition, the arc radius R4 is 20-30mm, and the arc length L4 is 10-15 mm;

annular radials 1 is gone up the ring and is radially equipped with a plurality of installation screw 1a, installation screw 1a with boss 2b one-to-one sets up, installation screw 1a with correspond boss 2b is located same diametric (al).

Example 2:

as shown in fig. 3, 4 and 5, the lightweight automobile hub comprises an annular wheel disk 1, a spoke frame 2 and a rim 3, wherein the annular wheel disk 1 is in a circular ring shape, the spoke frame 2 is in a hollow circular table shape, the rim 3 is in a cylindrical shape, the annular wheel disk 1, the spoke frame 2 and the rim 3 are coaxially arranged, a large-opening end of the spoke frame 2 is connected with the inner wall of the rim 3, and a small-opening end of the spoke frame 2 extends out of the rim 3 and then is connected with the outer ring edge of the annular wheel disk 1;

as can be seen from fig. 6, 7 and 8, the large opening end of the spoke frame 2 is sequentially connected with a first arc-shaped ring 21, a second arc-shaped ring 22 and a third arc-shaped ring 23, the third arc-shaped ring 23 is connected with a welding cylinder 4, the outer wall of the welding cylinder 4 is abutted against and fixedly connected with the inner wall of the rim 3, the outer wall of the welding cylinder 4 is in interference fit with the inner wall of the rim 3, the interference is 0.5mm, the outer wall of the welding cylinder 4 is fixed with the inner wall of the rim 3 through laser welding, the inner ring edge and the outer ring edge of the first arc-shaped ring 21 are in arc transition, the outer arc surface of the first arc-shaped ring 21 faces the inner wall of the rim 3, the inner ring edge and the outer ring edge of the second arc-shaped ring 22 are in arc transition, the outer arc surface of the second arc-shaped ring 22 faces the inner wall of the rim 3, and the inner ring edge and the outer ring edge of the third arc-shaped ring 23 are in arc transition, the inner arc surface of the third arc-shaped ring 23 faces the inner wall of the rim 3, the inner ring edge of the first arc-shaped ring 21 is tangent and connected with the large opening end of the spoke frame 2, the outer ring edge of the first arc-shaped ring 21 is tangent and connected with the inner ring edge of the second arc-shaped ring 22, the outer ring edge of the second arc-shaped ring 22 is tangent and connected with the inner ring edge of the third arc-shaped ring 23, and the outer ring edge of the third arc-shaped ring 23 is tangent and connected with one end edge of the welding cylinder 4;

the small-mouth end of spoke frame 2 has connected gradually reverse arc ring 24 and forward arc ring 25, arc transition between reverse arc ring 24's inner circle edge and the outer lane edge, reverse arc ring 24's extrados orientation spoke frame 2's inside region, arc transition between forward arc ring 25's inner circle edge and the outer lane edge, forward arc ring 25's extrados orientation spoke frame 2's inside region, forward arc ring 25's inner circle edge with annular radials 1's outer lane edge is tangent and is connected, forward arc ring 25's outer lane edge with reverse arc ring 24's inner circle edge is tangent and is connected, reverse arc ring 24's outer lane edge with spoke frame 2's small-mouth end is tangent and is connected.

Specifically, the axial thickness of the annular wheel disk 1 is 7mm, the inner diameter of the annular wheel disk 1 is 280mm, the inner diameter of the large opening end of the wheel disk frame 2 is 530mm, the inner diameter of the small opening end of the wheel disk frame 2 is 420mm, the axial height of the wheel disk frame 2 is 55mm, the wall thickness of the large opening end of the wheel disk frame 2 is 3mm, the wall thickness of the small opening end of the wheel disk frame 2 is 7mm, the wall thickness of the wheel disk frame 2 is in free transition from the large opening end to the small opening end, the wall thicknesses of the first arc-shaped ring 21, the second arc-shaped ring 22 and the third arc-shaped ring 23 are 3mm, the wall thicknesses of the reverse arc-shaped ring 24 and the forward arc-shaped ring 25 are 7mm, the wall thickness of the welding cylinder 4 is 5mm, the axial length of the welding cylinder 4 is 15mm, and the wall thickness of the wheel rim 3 is 3.5 mm;

the inner ring edge and the outer ring edge of the first arc-shaped ring 21 are in arc transition, the arc radius R1 is 5mm, and the arc length L1 is 3 mm;

the inner ring edge and the outer ring edge of the second arc-shaped ring 22 are in arc transition, the arc radius R2 is 10mm, and the arc length L2 is 10 mm;

the inner ring edge and the outer ring edge of the third arc-shaped ring 23 are in arc transition, the arc radius R3 is 20mm, and the arc length L3 is 12 mm;

the inner ring edge and the outer ring edge of the reverse arc-shaped ring 24 are in arc transition, the arc radius R4 is 25mm, and the arc length L4 is 12 mm;

the inner ring edge and the outer ring edge of the forward arc-shaped ring 25 are in arc transition, the arc radius R5 is 15mm, and the arc length L5 is 18 mm;

because the first arc-shaped ring 21, the second arc-shaped ring 22, the third arc-shaped ring 23, the reverse arc-shaped ring 24 and the forward arc-shaped ring 25 all have certain thicknesses, the arc radius and the arc length are measured by the central lines thereof.

Ten air holes 2a are uniformly distributed in the radial frame 2 in the circumferential direction, the air holes 2a are waist-shaped holes, the long axis of each waist-shaped hole extends in the circumferential direction of the radial frame 2, the long axis of each waist-shaped hole is 60mm, and the short axis of each waist-shaped hole is 50 mm;

a reinforcing block 2b is arranged on the spoke frame 2 between any two adjacent wind holes 2a, the thickness of the reinforcing block 2b is 1.5mm, the reinforcing block 2b is positioned on the outer side surface of the spoke frame 2, the reinforcing block 2b comprises a small semicircular part, a trapezoidal part and a large semicircular part, the diameter of the small semicircular part is 15mm, the diameter of the large semicircular part is 25mm, the trapezoidal part is in an isosceles trapezoid shape, the height direction of the trapezoid part is parallel to the generatrix direction of the circular truncated cone-shaped spoke frame 2, the height of the trapezoid part is 30mm, the straight line edge of the small semicircular part is matched and connected with the shorter bottom edge of the trapezoidal part, the straight line edge of the large semicircular part is matched and connected with the longer bottom edge of the trapezoidal part, the small semicircular part faces the small opening end of the circular truncated cone-shaped spoke frame 2, and the large semicircular part faces the large opening end of the circular truncated cone-shaped spoke frame 2.

A ring of annular countertop rings 26 are arranged around the blast hole 2a, the countertop rings 26 are offset towards the inside of the radial frame 2, the countertop rings 26 are connected with the hole wall of the blast hole 2a through annular bent parts 27, the outer ring walls of the bent parts 27 are connected with the hole wall of the blast hole 2a, the inner ring walls of the bent parts 27 are fixedly connected with the outer ring walls of the countertop rings 26, the countertop rings 26 are axially and inwardly offset by 2mm relative to the radial frame 2 as measured by the surfaces of the countertop rings 26 and the radial frame 2 with the same orientation, the radial width of the countertop rings 26 is 2mm, and the radial width of the bent parts 27 is 3 mm;

the welding cylinder is formed by integrally molding an annular radial plate 1, a forward arc-shaped ring 25, a reverse arc-shaped ring 24, a radial frame 2, a first arc-shaped ring 21, a second arc-shaped ring 22, a third arc-shaped ring 23 and a welding cylinder 4.

Example 3:

this embodiment differs from embodiment 2 only in that: the outer lane of annular radials 1 with directly connect through forward arc ring 25 between the osculum end of spoke frame 2, and no longer set up reverse arc ring 24, promptly the inner circle edge of forward arc ring 25 with the outer lane edge of annular radials 1 is tangent and is connected, the outer lane edge of forward arc ring 25 with the osculum end of spoke frame 2 is tangent and is connected, as shown in fig. 9, the circular arc radius and the arc length of forward arc ring 25 carry out the adaptability and change.

And (3) CAE analysis:

the CAE analysis of the hubs obtained in examples 2 and 3 is shown in fig. 10 and 11. The test result shows that: the maximum stress points are all located at the edges of the mounting screw holes 1a, wherein the maximum stress of the hub corresponding to the embodiment 2 is 368Mpa, the maximum stress of the hub corresponding to the embodiment 3 is 389.3Mpa, and the maximum stress of the hub corresponding to the embodiment 2 at the mounting screw holes 1a is reduced by 21.3Mpa and 5.5% (21.3Mpa/389.3Mpa 100%) compared with the hub of the embodiment 3. The hub corresponding to embodiment 2 can reduce stress at the spoke frame mounting screw hole 1a, reduce the possibility of fatigue cracking of the mounting screw hole, improve the rigidity of the spoke frame mounting surface, and increase deformation resistance, thereby improving the fatigue performance of the wheel.

Has the beneficial effects that: above simulation test result explains and adopts the technical scheme provided by the utility model, can reduce the stress at spoke frame installation screw position, reduce the fatigue cracked possibility of installation screw, improve the rigidity of spoke frame installation face, increase the resistance to deformation to it is favorable to further reducing wheel hub weight to promote wheel fatigue performance.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a wheel spoke, includes the spoke frame (2) of annular radials (1) and round platform form, the osculum end of spoke frame (2) with the outer lane edge connection of annular radials (1), spoke frame (2) are located one side of annular radials (1), its characterized in that:

the small opening end of the spoke frame (2) is connected with the annular spoke plate (1) through a forward arc-shaped ring (25) and a reverse arc-shaped ring (24), the inner ring edge and the outer ring edge of the positive arc-shaped ring (25) are in arc transition, the inner arc surface of the positive arc-shaped ring (25) faces to the inner area of the spoke frame (2), the inner ring edge and the outer ring edge of the reverse arc-shaped ring (24) are in arc transition, the outer arc surface of the reverse arc-shaped ring (24) faces to the inner area of the spoke frame (2), the inner ring edge of the positive arc-shaped ring (25) is tangent and connected with the outer ring edge of the annular spoke plate (1), the outer ring edge of the forward arc-shaped ring (25) is tangent and connected with the inner ring edge of the reverse arc-shaped ring (24), the edge of the outer ring of the reverse arc-shaped ring (24) is tangent and connected with the small end of the spoke frame (2).

2. A wheel spoke according to claim 1 in which: the spoke frame (2) is provided with wind holes (2a) which are evenly distributed in the circumferential direction, the wind holes (2a) are waist-shaped holes, and the long axis of each waist-shaped hole extends along the circumferential direction of the spoke frame (2).

3. A wheel spoke according to claim 2 in which: arbitrary adjacent two between wind hole (2a) be equipped with boss (2b) on spoke frame (2), boss (2b) are located the lateral surface of spoke frame (2), boss (2b) include little semicircle portion, trapezoidal portion and semicircle portion, trapezoidal portion is isosceles trapezoid shape, the direction of height and the round platform form of trapezoidal portion the generating line direction of spoke frame (2) is parallel, the straight line edge of little semicircle portion with the shorter base matching connection of trapezoidal portion, the straight line edge of semicircle portion with the longer base matching connection of trapezoidal portion, little semicircle portion is towards the round platform form the small-mouth end of spoke frame (2), the semicircle portion is towards the round platform form the large-mouth end of spoke frame (2).

4. A wheel spoke according to claim 2 in which:

the arc transition is formed between the inner ring edge and the outer ring edge of the forward arc-shaped ring (25), the arc radius R5 is 10-20mm, and the arc length L5 is 15-20 mm;

the arc transition between the inner ring edge and the outer ring edge of the reverse arc-shaped ring (24) is realized, the arc radius R4 is 20-30mm, and the arc length L4 is 10-15 mm.

5. A wheel spoke according to claim 3 in which: annular radials (1) are gone up the ring-shaped and are radially equipped with a plurality of installation screw (1a), installation screw (1a) with boss (2b) one-to-one sets up, installation screw (1a) and corresponding boss (2b) are located same diametric (al).