建立方向盘项目初始版本
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models/kfl_100_flange57_concept/Assembly.FCStd
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models/kfl_100_flange57_concept/Assembly.FCStd
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models/kfl_100_flange57_concept/Assembly.step
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models/kfl_100_flange57_concept/Assembly.step
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models/kfl_100_flange57_concept/DONE.txt
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models/kfl_100_flange57_concept/DONE.txt
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models/kfl_100_flange57_concept/assembly.png
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models/kfl_100_flange57_concept/assembly.png
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models/kfl_100_flange57_concept/focus.png
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models/kfl_100_flange57_concept/focus.png
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models/kfl_100_flange57_concept/geometry_check.txt
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models/kfl_100_flange57_concept/geometry_check.txt
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CONCEPT ONLY; NOT ASSEMBLY FIT VALIDATION.
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Motor side flange disc OD57 thickness4, six PCD48 holes nominal5.5; hub OD30 extending20 past disc face. Wheel side hub OD20 assumed.
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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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Shaft z=-52..-152; motor hub z=-70..-50: actual overlap 18 mm. Rear inner bearing z=-78.5..-64 overlaps motor hub from -70..-64 (6mm). Therefore prior 12mm serial budget is not valid; geometry includes nominal interference. Front hub engagement9 remains an unvalidated assumption.
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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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No workable fit is demonstrated. Real KFL and switch shapes, motor M3 nut and both shaft end details, fastener/tool paths, front hub and contact/clearances are unmeasured.
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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 = 3836.277329 mm3
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MotorFlange / RearInner = 870.849484 mm3
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MotorFlange / RearPlate = 0.000000 mm3
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WheelHub / FrontBearing = 76.576321 mm3
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models/kfl_100_flange57_concept/side.png
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models/kfl_100_flange57_concept/side.png
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models/kfl_100_flange57_concept/更新尺寸_装配示意.png
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models/kfl_100_flange57_concept/更新尺寸_装配示意.png
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models/kfl_100_flange57_concept/示意说明.md
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models/kfl_100_flange57_concept/示意说明.md
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# 更新电机侧法兰的 100 mm 轴总装探索
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## 用户提供的法兰尺寸
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- 底盘外径 57 mm、厚 4 mm;六个 PCD48 安装孔,示意 Ø5.5 mm。
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- 中央凸台外径 30 mm、高 20 mm。本模型假设 20 mm 从底盘外侧面起算,因此整体总高 24 mm;若实际 20 mm 含底盘厚度,需要改为总高 20 mm 后重算。
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- 安装孔孔径及 12 mm 轴孔、4 mm 键槽与此前描述对应;模型轴孔按 Ø12.4 mm 示意,未建实际键槽。方向盘侧的轮毂与法兰只是假设,不套用该用户数据。
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## 文件
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- `更新尺寸_装配示意.png`:沿用原布局 A 和前移候选 B 的比较。绿色是 50 mm 开关外包络的示意,不是实物形状;其 Ø47 mm 中心开孔纯属示意,不能证明回正凸块可转动。
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- 本文件夹中的 `Assembly.FCStd` / `Assembly.step`:布局 A;`geometry_check.txt` 为选定对象的交叠检查。
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- `../kfl_100_flange57_shift_concept/Assembly.FCStd`:布局 B。两方案只做布局探讨,不是可供加工的设计。
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## 布局 A:沿用原位置
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轴从 z=-52 至 -152,长度 100 mm。电机法兰凸台从 z=-50 至 -70,二者重叠 18 mm,并非前次假设的 12 mm。这个轴向相交是插入示意,而非承插深度已验证。
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按此前尚未实测的 KFL 占位几何,电机侧法兰与后轴承座的实体交叠约 3836 mm³,和后轴承内圈交叠约 871 mm³;轴向内圈及凸台区间有 6 mm 重叠,外壳又伸出内圈,因此不是把内圈向前移动 6 mm 就能保证可用。前端假设轮毂与前轴承座也有交叠约 76.58 mm³。
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## 布局 B:前移探索
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在同一简化模型下,把整根 100 mm 轴向方向盘侧移动 6 mm,轴承、开关与前端轮毂向方向盘侧移动 10 mm。电机侧法兰示意插入深度变为 12 mm,电机侧法兰与假设后轴承座的实体相交为 0,但两者轴向仅约 0.5 mm 的名义间隙,尚未考虑误差和安装余量。
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方向盘侧假设轮毂原长度 9 mm,其中仅与轴相交 5 mm;5 mm 不是已验证的有效夹持长度,前轮毂与示意前轴承座仍有 76.58 mm³ 相交。该方案也不能认定可装或可用。
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## 限制
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KFL001 凸起及内圈轴向位置、板孔 Ø30.2、开关孔 Ø47、开关白色回正机构、两端键槽、M3 螺母、方向盘侧轮毂及操作空间均未实测。电机正面凸台和转换盘位置也沿用近似模型。小于 Ø44 的轴套扫掠不能证明它能通过开关的真实内部截面。
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用户的法兰凸台外高 20 mm 不代表轴必须插入 20 mm;插入应由实际孔深、键与顶丝位置以及强度验证确定。不能使用此前串排的 12+14.5+50+14.5+9=100 mm 作为新方案的装配结论。50 mm 开关包络包含偏轴插座,实际可能局部与轴承沿轴向重叠,因此这些示意也不能证明 100 mm 一定不够。
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