阅读说明：本技术 一种抗侧向冲击型轮端总成 (Anti side direction impact type wheel end assembly ) 是由 黄德杰 陈伟军 周旭 汪峰 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种抗侧向冲击型轮端总成,主要包括轮毂、吸能装置A、轮毂轴承、轮架、制动盘、吸能装置B,轮架安装于汽车底盘上,轮架的正上方与正下方分别固定布置了吸能装置A和吸能装置B,轮毂轴承通过其自身的外圈零件安装于轮架上,制动盘与轮毂分别安装于轮毂轴承上,制动盘内表面与吸能装置A和吸能装置B末端相对。本发明在现有轮端结构模式下进行改进设计,实现了对外来冲击载荷的有效缓冲,通过吸能装置吸收了外来的冲击能量,大幅度减小了外界冲击对汽车底盘结构的冲击损害；能够缓解外来冲击载荷对轮毂轴承滚道的冲击塑性变形,延长了轴承的使用寿命。(The invention discloses a lateral impact resistant wheel end assembly which mainly comprises a wheel hub, an energy absorption device A, a wheel hub bearing, a wheel carrier, a brake disc and an energy absorption device B, wherein the wheel carrier is arranged on an automobile chassis, the energy absorption device A and the energy absorption device B are fixedly arranged right above and right below the wheel carrier respectively, the wheel hub bearing is arranged on the wheel carrier through an outer ring part of the wheel hub bearing, the brake disc and the wheel hub are arranged on the wheel hub bearing respectively, and the inner surface of the brake disc is opposite to the tail ends of the energy absorption device A and the energy absorption device B. The invention is improved and designed under the existing wheel end structure mode, realizes effective buffering of external impact load, absorbs external impact energy through the energy absorption device, and greatly reduces impact damage of external impact on the automobile chassis structure; the impact plastic deformation of external impact load to the wheel hub bearing raceway can be relieved, and the service life of the bearing is prolonged.)

1. An anti side impact type wheel end assembly which characterized in that: mainly include wheel hub (1), energy-absorbing device A (2), wheel hub bearing (3), wheel carrier (4), brake disc (5), energy-absorbing device B (6), wheel carrier (4) are installed on vehicle chassis, energy-absorbing device A (2) and energy-absorbing device B (6) have been fixed respectively to having arranged directly over and under wheel carrier (4), wheel hub bearing (3) are installed on wheel carrier (4) through the outer lane part of its self, brake disc (5) and wheel hub (1) are installed respectively on wheel hub bearing (3), brake disc (5) internal surface is relative with energy-absorbing device A (2) and energy-absorbing device B (6) end.

2. The side impact resistant wheel end assembly of claim 1, wherein: the energy absorption device A (2) and the energy absorption device B (6) are mainly composed of a support (7), a sealing plug (8), an oil pressure cylinder (9), balls (10), a spring (11), a piston rod (12) and an elastic medium (13), one end of the support (7) is connected with a wheel carrier (4), the other end of the support is connected with the oil pressure cylinder (9), a piston rod (12), the spring (11) and the elastic medium (13) are arranged in the oil pressure cylinder (9), a small hole is formed in the side wall of the oil pressure cylinder (9), the sealing plug (8) is installed in the small hole for sealing, the outer circumferential surface of the piston rod (12) is matched with the cylinder wall of the oil pressure cylinder (9) to form an axial moving pair, the left large end surface of the piston rod (12) is contacted with the elastic medium (13), the right large end surface of the piston rod (12) is contacted with the spring (11), one end surface of the spring (11, the rightmost end of the piston rod (12) is provided with a lane exceeding the semi-spherical area, a ball (10) is embedded in the lane, and the ball (10) is opposite to the brake disc (5) on the right side.

3. The side impact resistant wheel end assembly of claim 1, wherein: certain gaps are reserved among the energy absorption device A (2), the energy absorption device B (6) and the brake disc (5).

4. The wheel end assembly of claim 2, wherein: the elastic medium (13) maintains a certain pressure.

Technical Field

The invention relates to the field of hubs, in particular to a lateral impact resistant wheel end assembly.

Background

The wheel end assembly is an assembly consisting of a wheel support, a hub bearing unit, a brake disc, a hub and the like. In the process of running of a vehicle on a road surface, the structural design of the front wheel end mainly adopts a shock absorber in the radial direction to buffer the structural damage influence caused by road surface impact, but in practical application, the side impact has great influence on a wheel end assembly, and the main effects are as follows:

(1) the structural strength of the wheel end is not designed sufficiently, and good impact design consideration is not provided, so that the safety accident of axle breakage occurs;

(2) impact damage to a hub bearing at the wheel end causes plastic deformation of a bearing raceway, so that unstable noise is caused by the wheel end in subsequent vehicle running, and further the bearing raceway is stripped and failed.

The two problems are not effectively solved in the design of the wheel end assembly, and the service life and the safety of the wheel end assembly are seriously influenced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a wheel end assembly with lateral impact resistance.

The purpose of the invention is achieved by the following technical scheme: the lateral impact resistant wheel end assembly mainly comprises a wheel hub, an energy absorption device A, a wheel hub bearing, a wheel carrier, a brake disc and an energy absorption device B, wherein the wheel carrier is arranged on an automobile chassis, the energy absorption device A and the energy absorption device B are fixedly arranged right above and right below the wheel carrier respectively, the wheel hub bearing is arranged on the wheel carrier through an outer ring part of the wheel hub bearing, the brake disc and the wheel hub are arranged on the wheel hub bearing respectively, and the inner surface of the brake disc is opposite to the tail ends of the energy absorption device A and the energy absorption device B.

The energy absorption device A and the energy absorption device B are mainly composed of a support, a sealing plug, an oil pressure cylinder, balls, a spring, a piston rod and an elastic medium, one end of the support is connected with a wheel carrier, the other end of the support is connected with the oil pressure cylinder, the piston rod, the spring and the elastic medium are arranged in the oil pressure cylinder, a small hole is formed in the side wall of the oil pressure cylinder, the sealing plug is installed in the small hole and sealed, the outer circumferential surface of the piston rod is matched with the cylinder wall of the oil pressure cylinder to form an axial moving pair, the left large end face of the piston rod is contacted with the elastic medium, the right large end face of the piston rod is contacted with the spring, one end face of the spring is contacted with the piston rod, the other end face of the spring is contacted with the end.

And certain gaps are reserved among the energy absorption device A, the energy absorption device B and the brake disc.

The elastic medium is maintained under pressure.

The invention has the beneficial effects that: the invention is improved and designed under the existing wheel end structure mode, realizes effective buffering of external impact load, absorbs external impact energy through the energy absorption device, and greatly reduces impact damage of external impact on the automobile chassis structure; the impact plastic deformation of external impact load to the wheel hub bearing raceway can be relieved, and the service life of the bearing is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a working principle diagram of the present invention.

Fig. 4 is a schematic diagram of setting the distance L between the ball and the brake disc according to the present invention.

FIG. 5 is a schematic view of the impact of the present invention working from the outside of the vehicle body inward.

Fig. 6 is a working schematic diagram of the invention with the impact from the inside of the vehicle body to the outside.

Description of reference numerals: the brake comprises a hub 1, an energy absorption device A2, a hub bearing 3, a wheel carrier 4, a brake disc 5, an energy absorption device B6, a support 7, a sealing plug 8, a hydraulic cylinder 9, balls 10, a spring 11, a piston rod 12 and an elastic medium 13.

Detailed Description

The invention will be described in detail below with reference to the following drawings: