Hub motor fixed steering knuckle for skateboard chassis

Abstract

The utility model discloses a hub motor fixing knuckle for a skateboard chassis, which comprises a knuckle body, hub motor fixing holes are uniformly distributed in the middle of the knuckle body, and an upper control arm fixing hole is arranged on the upper portion of the knuckle body. A first lower control arm fixing hole and a second lower control arm fixing hole are formed in the two sides of the lower portion of the steering knuckle body correspondingly, loads are evenly dispersed through the hub motor fixing holes which are symmetrically distributed through eight through holes, connection failure caused by vibration is avoided, the bearing strength can be enhanced, a three-phase line and water pipe arrangement hole and a rotary transformer signal line special hole are reserved, and the stability of the steering knuckle is improved. An upper control arm fixing hole adopts an inclined form and is matched with the mounting angle of a suspension component, a positioning boss improves the alignment precision of a hub motor, a high-strength aluminum alloy material is adopted, and the weight is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of skateboard chassis, specifically relates to a wheel hub motor fixed steering knuckle for skateboard chassis. BACKGROUND

[0002] In the field of electric vehicles, skateboard chassis gradually becomes the mainstream scheme due to its modularity and high integration. As the driving core, the wheel hub motor needs to be connected with the suspension system through the steering knuckle.

[0003] The traditional steering knuckle fixes the wheel hub motor by four or six holes, which is easy to cause connection failure due to vibration under high-speed driving or complex road conditions, and the bearing strength is insufficient. Moreover, the three-phase line, resolver signal line and cooling water pipe of the wheel hub motor lack a special channel, which leads to exposed cables, high wear risk, disordered cable arrangement, unreasonable design of the upper control arm fixing hole, difficulty in fitting the suspension components during installation, affecting positioning accuracy, poor installation adaptability, and the traditional steering knuckle is made of steel, which is heavy although it has high strength. SUMMARY

[0004] The utility model solves the technical problem of overcoming the defects of the prior art and provides a wheel hub motor fixed steering knuckle for skateboard chassis to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wheel hub motor fixed steering knuckle for skateboard chassis, comprising a steering knuckle body, wheel hub motor fixing holes are uniformly arranged in the middle part of the steering knuckle body, an upper control arm fixing hole is arranged on the upper part of the steering knuckle body, a first lower control arm fixing hole and a second lower control arm fixing hole are arranged on the lower part of the steering knuckle body, a steering drag link fixing hole is arranged on one side of the steering knuckle body, three-phase line and water pipe arrangement reserved holes are arranged on the upper end of the surface of the steering knuckle body, resolver signal line reserved holes are arranged on the lower end of the surface of the steering knuckle body, a lightened through hole is arranged in the middle part of the steering knuckle body, and a grounding fixing hole is arranged outside the lightened through hole.

[0006] Preferably, the steering knuckle body is made of aluminum alloy material, there are eight wheel hub motor fixing holes, and they are symmetrically distributed, and the steering knuckle body is fixed on one side of the wheel hub motor by passing through the wheel hub motor fixing holes.

[0007] Preferably, the hole axis of the upper control arm fixing hole is inclined relative to the wheel hub motor mounting surface, and the upper control arm fixing hole is used for connecting the ball head of the upper control arm.

[0008] Preferably, the first lower control arm fixing hole and the second lower control arm fixing hole are used for connecting the ball heads of the first lower control arm and the second lower control arm.

[0009] Preferably, the steering pull rod fixing hole is used for connecting the ball head of the steering pull rod.

[0010] Preferably, the inner wall of the three-phase line and water pipe arrangement reserved hole and the rotary variable signal line reserved hole is provided with an insulating bushing, and the three-phase line and water pipe arrangement reserved hole is used for penetrating the hub motor three-phase line and the cooling in-out water pipe.

[0011] Preferably, the contact surface of the knuckle body and the hub motor is provided with a positioning boss, and the rotary variable signal line reserved hole is used for penetrating the rotary variable signal line.

[0012] Compared with the prior art, the hub motor fixing knuckle for the skateboard chassis has the following beneficial effects:

[0013] The eight through holes symmetrically distributed hub motor fixing holes evenly disperse the load, avoid connection failure caused by vibration, can enhance the bearing strength, and reserve the three-phase line and water pipe arrangement hole, the rotary variable signal line special hole, and the insulating bushing, ensure that the cable is regular and is not worn, the upper control arm fixing hole adopts an inclined form, and the installation angle is matched with the suspension part, the positioning boss improves the hub motor alignment accuracy, and high-strength aluminum alloy material is adopted to reduce the weight. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, for explaining the present application, and do not constitute a limitation on the present application, in the drawings:

[0015] Fig. 1 The knuckle isocentric view provided by the present application;

[0016] Fig. 2 The knuckle side view structure provided by the present application;

[0017] Fig. 3 The knuckle arrangement connection diagram provided by the present application;

[0018] In the drawing: 1, first lower control arm fixing hole; 2, second lower control arm fixing hole; 3, rotary variable signal line reserved hole; 4, hub motor fixing hole; 5, grounding fixing hole; 6, upper control arm fixing hole; 7, steering pull rod fixing hole; 8, three-phase line and water pipe arrangement reserved hole; 9, lightweight through hole; 10, rotary variable signal line; 11, hub motor; 12, knuckle body; 13, cooling in-out water pipe; 14, hub motor three-phase line; 15, upper control arm; 16, steering pull rod; 17, first lower control arm; 18, second lower control arm. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a hub motor fixing knuckle for skateboard chassis, including knuckle body 12, knuckle body 12 middle part is uniformly distributed and is provided with hub motor fixing hole 4, it is convenient to realize the accurate fixing of knuckle and hub motor by bolt, knuckle body 12 upper portion is provided with upper control arm fixing hole 6, so that upper control arm can be installed with inclination angle, the lower portion of knuckle body 12 two sides is provided with first lower control arm fixing hole 1 and second lower control arm fixing hole 2, provides the fixed point of lower control arm, ensure the stability and linkage of steering system, one side of knuckle body 12 is provided with steering drag link fixing hole 7, for connecting steering drag link, realize the transmission of steering instruction, knuckle body 12 surface upper end is provided with three-phase line and water pipe arrangement reserved hole 8, it is convenient to wiring and water pipe installation, keep system neat, knuckle body 12 surface lower end is provided with rotary transducer signal line reserved hole 3, ensure the safety of signal line, avoid interference, the middle part of knuckle body 12 is provided with light weight through-hole 9, reduce overall weight, improve steering response speed, light weight through-hole 9 outside is provided with grounding fixing hole 5, for equipment grounding, guarantee electrical safety.

[0021] In the utility model, preferably, knuckle body 12 is made of aluminum alloy material, improve strength and reduce weight at the same time, hub motor fixing hole 4 has eight, and is symmetrically distributed, enhance fixed stability, knuckle body 12 is fixed in one side of hub motor 11 by bolt through hub motor fixing hole 4, the hole axis of upper control arm fixing hole 6 is inclined relative to the mounting surface of hub motor 11, upper control arm fixing hole 6 is used for connecting the ball head of upper control arm 15, first lower control arm fixing hole 1 and second lower control arm fixing hole 2 are used for connecting the ball head of first lower control arm 17 and second lower control arm 18, steering drag link fixing hole 7 is used for connecting the ball head of steering drag link 16, the inner wall of three-phase line and water pipe arrangement reserved hole 8 and rotary transducer signal line reserved hole 3 is provided with insulating bushing, prevent abrasion, guarantee line safety, three-phase line and water pipe arrangement reserved hole 8 are used for the hub motor three-phase line 14 and cooling inlet and outlet water pipe 13, the contact surface of knuckle body 12 and hub motor 11 is provided with positioning boss, improve assembly accuracy, rotary transducer signal line reserved hole 3 is used for rotary transducer signal line 10, ensure the stability of signal transmission.

[0022] The working principle and use process of the utility model: when using, through eight wheel hub motors fixed holes 4 of symmetrical distribution, use bolt to fix steering knuckle body 12 in wheel hub motor 11 one side, utilize positioning boss to ensure the alignment accuracy, connect the ball head of upper control arm 15 with the upper control arm fixed hole 6 of inclination design, connect the ball head of first lower control arm 17 and second lower control arm 18 to first lower control arm fixed hole 1 and second lower control arm fixed hole 2 respectively, connect the ball head of steering drag link 16 to steering drag link fixed hole 7, ensure steering system linkage, wheel hub motor three phase line 14 and cooling inlet and outlet water pipe 13 are worn into three phase line and water pipe arrangement reserved hole 8, inner wall insulation bushing prevents abrasion, wear rotary variable signal line 10 into rotary variable signal line reserved hole 3, ensure signal transmission stability, further reduce the weight of steering knuckle body 12 through light weight through hole 9, complete equipment grounding using grounding fixed hole 5, ensure electrical safety, verify the fastening of all connecting parts, ensure that each hole position and suspension component angle match, avoid vibration leading to connection failure.

[0023] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hub motor fixed steering knuckle for a skateboard chassis comprising a steering knuckle body (12) characterised in that: The steering knuckle body (12) is uniformly provided with wheel hub motor fixing holes (4) in the middle part, is provided with upper control arm fixing holes (6) in the upper part, is provided with first lower control arm fixing holes (1) and second lower control arm fixing holes (2) on the lower part of two sides respectively, is provided with steering drag link fixing holes (7) on one side, is provided with three-phase line and water pipe arrangement reserved holes (8) on the surface of the upper end, is provided with rotary variable signal line reserved holes (3) on the surface of the lower end, is provided with light weight through holes (9) in the middle part, and is provided with grounding fixing holes (5) outside the light weight through holes (9).

2. A wheel hub motor fixed knuckle for a skateboard chassis according to claim 1, characterized in that: The steering knuckle body (12) is made of aluminum alloy material, the wheel hub motor fixing holes (4) are eight in total and are symmetrically distributed, and the steering knuckle body (12) is fixed on one side of the wheel hub motor (11) through the wheel hub motor fixing holes (4) and bolts.

3. The wheel hub motor fixed knuckle for a skateboard chassis according to claim 1, characterized in that: The hole axis of the upper control arm fixing hole (6) is inclined relative to the mounting surface of the wheel hub motor (11), and the upper control arm fixing hole (6) is used for connecting the ball head of the upper control arm (15).

4. The hub motor fixed knuckle for a skateboard chassis according to claim 1, characterized in that: The first lower control arm fixing hole (1) and the second lower control arm fixing hole (2) are used for connecting the ball heads of the first lower control arm (17) and the second lower control arm (18).

5. The hub motor fixed knuckle for a skateboard chassis according to claim 1, characterized in that: The steering drag link fixing hole (7) is used for connecting the ball head of the steering drag link (16).

6. A wheel hub motor fixed knuckle for a skateboard chassis according to claim 1, characterized in that: The inner walls of the three-phase line and water pipe arrangement reserved holes (8) and the rotary variable signal line reserved holes (3) are provided with insulating bushings, the three-phase line and water pipe arrangement reserved holes (8) are used for penetrating the wheel hub motor three-phase line (14) and the cooling in-out water pipe (13).

7. The hub motor fixed knuckle for a skateboard chassis according to claim 1, wherein: The contact surface of the steering knuckle body (12) and the wheel hub motor (11) is provided with a positioning boss, and the rotary variable signal line reserved holes (3) are used for penetrating the rotary variable signal line (10).

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