建立方向盘项目初始版本
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models/kfl_100_concept/Assembly.FCStd
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models/kfl_100_concept/Assembly.FCStd
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models/kfl_100_concept/Assembly.step
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models/kfl_100_concept/Assembly.step
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models/kfl_100_concept/DONE.txt
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models/kfl_100_concept/DONE.txt
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models/kfl_100_concept/assembly.png
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models/kfl_100_concept/assembly.png
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models/kfl_100_concept/focus.png
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models/kfl_100_concept/focus.png
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models/kfl_100_concept/geometry_check.txt
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models/kfl_100_concept/geometry_check.txt
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CONCEPT ONLY; NOT ASSEMBLY FIT VALIDATION.
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Schematic hub outside diameter 20.0mm, not measured; variant narrowed only to explore geometry.
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Z decreases from motor toward steering wheel; motor rear z0; wheel shaft z=-52..-152 length100.
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KFL actual nominal 63x38 housing envelope, 48 bolt centers, 7 hole, 5.5 ears, inner 14.5; protrusion OD29 and position assumed.
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8mm plates central hole OD30.2 assumed, not actual production spec.
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50mm switch opaque-enclosing envelope z=-128.5..-78.5; opening OD47 ASSUMED only; real rotary features and contacts unknown.
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Allocation by shaft: motor hub12 + bearing14.5 + switch50 + bearing14.5 + wheel hub9 = 100 mm. No axial gaps. 9mm hub engagement NOT VALIDATED.
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Sleeve20 sits inside switch envelope and is not additional 20mm.
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Motor mounting boss, shaft end keys, original M3 nut, lights/white contacts, bearing set screws, pin fastening/head/tool and adjuster are not modelled.
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Because ideal 100mm budget has zero clearance and unknown wheel hub engagement, this is not a workable fit verification; real assembly remains unverified. Narrow hub has no verified keyway strength or real KFL clearance.
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Checked positive-volume intersections (other pairs, loaded operation, exact bearing and switch shape not tested):
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Plate0 / KFLHousing0 = 0.000000 mm3
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Plate1 / KFLHousing1 = 0.000000 mm3
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Plate0 / KFLInner0 = 0.000000 mm3
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Plate1 / KFLInner1 = 0.000000 mm3
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SwitchEnvelope / CamUpper = 0.000000 mm3
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SwitchEnvelope / CamLower = 0.000000 mm3
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SwitchEnvelope / CamHardware0 = 0.000000 mm3
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SwitchEnvelope / CamHardware1 = 0.000000 mm3
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SwitchEnvelope / CamHardware2 = 0.000000 mm3
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SwitchEnvelope / CamHardware3 = 0.000000 mm3
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MotorFlange / Shaft = 0.000000 mm3
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WheelHub / Shaft = 0.000000 mm3
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WheelHub / 70Adapter = 0.000000 mm3
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Plate0 / Plate1 = 0.000000 mm3
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MotorFlange / RearBearing = 107.206849 mm3
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WheelHub / FrontBearing = 76.576321 mm3
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models/kfl_100_concept/side.png
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models/kfl_100_concept/side.png
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models/kfl_100_concept/示意说明.md
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models/kfl_100_concept/示意说明.md
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# 100 mm 轴、两只 KFL 和灯光开关:3D 概念布局
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## 文件
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- `装配比较示意.png`:两种轮毂几何假设的比较图。绿透明区域仅表示开关的 50 mm 总轴向包络,不是根据照片重建的精确形状;其 Ø47 mm 中心孔是可视化假设,不能据此证明轴套能转动或回正。
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- `Assembly.FCStd` / `Assembly.step`:方案 A 立体装配;红色几何为计算到的假设轮毂与假设 KFL 壳体的实体交叉。
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- `geometry_check.txt`:几何假设及选定对象的交叉体积。
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- `../kfl_100_narrow_concept/Assembly.FCStd`:仅将假设轮毂外径由 20 mm 缩至 18.4 mm 的方案 B,不是推荐的可加工结构。
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## 轴向位置和紧凑极限(假设)
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轴在 z=-52 至 -152,100 mm;分段为电机侧轮毂内插 12 mm、后轴承内圈 14.5 mm、开关完整包络 50 mm、前轴承内圈 14.5 mm、前轮毂内插 9 mm,合计 100 mm。20 mm 轴套处于开关包络之内,不重复累加。**轴向各处间隙为零,前端 9 mm 插入是否足够未知,因此并非可装配或可用性结论。**
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开关总 50 mm 含远离轴线的接线插座,真实开关可能在不同半径与轴承或铝板投影重叠,所以这种完整包络串排的预算并非实际最短轴长计算。开关壳体和白色回正机构未实测、未建模。
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## 反装轴承、孔位与干涉
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两只 KFL 安装耳分别与两块 8 mm 铝板的外侧平面接触;其中中央凸起伸进铝板孔。参照名义 KFL001:外形约 63×38、螺栓中心距 48、耳孔 Ø7、耳厚 5.5、内圈轴向宽 14.5 mm。中央凸起外径 Ø29、板通孔 Ø30.2、内外圈相对轴向位置全为示意假设,不能作为加工尺寸;38 mm 是座整体宽度,不是板的开孔直径。顶丝、螺丝头/垫圈、工具路径和板孔的实际轮廓未建模。
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方案 A 中假设两端轴毂外径 20 mm,已检出的轮毂与示意轴承座交叉:电机侧约 107.21 mm³、方向盘侧约 76.58 mm³。红色区域仅对应假设几何,不能推出实际产品必然干涉。方案 B 假设轮毂外径为 18.4 mm,在同一示意轴承形状下该对几何相交消失;实际 KFL 内孔、轮毂外径、4 mm 键槽处壁厚及强度均未知,不能以此认定装配成功。
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## 未验证项目
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电机中心 M3 螺丝螺母、轴两端平键和端面、开关回正拨片及运动路径、角度调节器、灯光开关固定件、实际角码/螺丝/ T 型螺母等均未建模。此前电机前端凸台也是近似;反装轴承两端轴向定位与浮动、轴承同轴度、方向盘负载、轴承座和铝板强度仍需验证。不得将本示意用于加工或采购定尺寸。
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models/kfl_100_concept/装配比较示意.png
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models/kfl_100_concept/装配比较示意.png
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