建立方向盘项目初始版本
This commit is contained in:
BIN
models/fan120_2020_mount_v1/Assembly.FCStd
Normal file
BIN
models/fan120_2020_mount_v1/Assembly.FCStd
Normal file
Binary file not shown.
11643
models/fan120_2020_mount_v1/Assembly.step
Normal file
11643
models/fan120_2020_mount_v1/Assembly.step
Normal file
File diff suppressed because it is too large
Load Diff
1
models/fan120_2020_mount_v1/DONE.txt
Normal file
1
models/fan120_2020_mount_v1/DONE.txt
Normal file
@@ -0,0 +1 @@
|
||||
ok
|
||||
BIN
models/fan120_2020_mount_v1/Fan120Mount.FCStd
Normal file
BIN
models/fan120_2020_mount_v1/Fan120Mount.FCStd
Normal file
Binary file not shown.
2840
models/fan120_2020_mount_v1/Fan120Mount.step
Normal file
2840
models/fan120_2020_mount_v1/Fan120Mount.step
Normal file
File diff suppressed because it is too large
Load Diff
BIN
models/fan120_2020_mount_v1/Fan120Mount.stl
Normal file
BIN
models/fan120_2020_mount_v1/Fan120Mount.stl
Normal file
Binary file not shown.
BIN
models/fan120_2020_mount_v1/assembly.png
Normal file
BIN
models/fan120_2020_mount_v1/assembly.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 94 KiB |
10
models/fan120_2020_mount_v1/geometry_check.txt
Normal file
10
models/fan120_2020_mount_v1/geometry_check.txt
Normal file
@@ -0,0 +1,10 @@
|
||||
Frame solid=1 volume=34724.297 mm3 mesh watertight=True triangles=6336
|
||||
Rail centers X=[-50.6200576850888, 50.6200576850888] rail top Z=20.000
|
||||
Fan envelope 120x120x25 mm, fan holes 105x105 mm, diameter 4.5 mm.
|
||||
Fan lower face Z=34.0 mm; bracket top Z=34.0 mm; 10 mm gap under cross ring.
|
||||
Fan-frame basic opening 96x96 mm with local supports; M5 extrusion slots at y +/-30 mm, transverse travel 10 mm.
|
||||
Nominal clearance from encoder screw heads to fan bottom is 16.90 mm.
|
||||
Positive-volume collisions of frame/fan envelope against previous modeled objects:
|
||||
none
|
||||
Fan is only a simplified envelope, no real fan structure, grille, leads or cable clearance included.
|
||||
Motor housing is simplified; airflow and real installation are not validated.
|
||||
BIN
models/fan120_2020_mount_v1/rear.png
Normal file
BIN
models/fan120_2020_mount_v1/rear.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 78 KiB |
BIN
models/fan120_2020_mount_v1/support.png
Normal file
BIN
models/fan120_2020_mount_v1/support.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 29 KiB |
BIN
models/fan120_2020_mount_v1/without_fan.png
Normal file
BIN
models/fan120_2020_mount_v1/without_fan.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 53 KiB |
24
models/fan120_2020_mount_v1/打印装配说明.md
Normal file
24
models/fan120_2020_mount_v1/打印装配说明.md
Normal file
@@ -0,0 +1,24 @@
|
||||
# 120 mm 机箱风扇支架(试装版)
|
||||
|
||||
`Fan120Mount.stl` 是一个完整连体支架,适合单文件提交打印;`Fan120Mount.step` 和 `Fan120Mount.FCStd` 可供修改。`Assembly.FCStd`、`Assembly.step`、`assembly.png` 是包含风扇简化外形的装配示意,风扇和其他电机零件不需要打印。`without_fan.png` 显示风扇拆掉后的支架。STL 已按风扇接触面朝下的方向放置。
|
||||
|
||||
## 尺寸及已知假设
|
||||
|
||||
- 支架主框 120 × 120 mm,中央基本开口 96 × 96 mm,四个支脚在长槽周围向内局部伸入开口,并向外略超出框边;四个风扇安装孔直径 4.5 mm、中心距 105 × 105 mm。风扇是否使用该标准孔距、孔能否穿过 M4 螺丝,请购买前核对实物图纸。
|
||||
- 本模型风扇外形按 120 × 120 × 25 mm 示意;风扇的凸出的轮毂、风扇网罩和风扇线没有建模。风扇安装位置正对电机背面,气流方向朝向电机。
|
||||
- 四个固定型材的长槽适合 M5 螺丝,两根轨道各用两个;长槽横跨型材方向,每侧理论可调整 ±5 mm。型材中心位置若保持对称,理论上两根轨道中心距可在约 91.24~111.24 mm 间调整;螺丝头、T 型螺母形状和打印公差会使实用调整量变小。前后方向靠沿型材槽滑动 T 型螺母调整。
|
||||
- 根据既有装配模型,两根 2020 顶面共面、中心距约 101.24 mm。这个数值来自示意模型中假定的电机孔位、角码和型材位置,**不等于实物已经测量确认**。送印前须确认实际轨道中心距、顶面齐平且四个螺丝能进入型材槽,否则要修改模型。
|
||||
- 以轨道顶面为基准,风扇贴合面高 14 mm;依据已有模型,风扇底面至编码器固定螺丝头顶名义间隙约 16.9 mm。编码器排针、焊线、插头和未建模的风扇凸起可能占用间隙,不能仅凭该数字判断实际可装。
|
||||
|
||||
## 五金与安装
|
||||
|
||||
1. 准备 4 个适配实际 2020 顶面槽宽和槽型的 M5 T 型螺母、4 颗 M5 内六角圆柱头螺丝;滑入式或弹片式只要与实际槽匹配均可,不预设所有 2020 型材槽型相同。先在型材上放入螺母。螺丝头应能进入约 9.8 mm 宽的沉孔,头高不超过约 5.5 mm。M5 × 14 mm 可作为试配起点,最终长度应以实际螺母位置和足够啮合为准。
|
||||
2. 将支架的四个支脚贴在两根型材顶面,调整四个长槽的位置,旋紧螺丝;螺丝头应低于风扇接触面。支架固定在型材上,编码器仍通过 50 mm 孔定位。
|
||||
3. 把风扇放到支架上,确认出风方向朝向电机。用 4 颗 M4 螺丝穿过风扇和支架,并在支架下方装 M4 螺母。对于厚 25 mm 的风扇,M4 × 35 mm 可作为试配起点;实际需依据风扇孔结构、垫圈和螺母厚度核对。螺母装在框架下方 10 mm 的空间里,装配前确认扳手能伸入。
|
||||
4. 给风扇加适配的防护网,并合理固定风扇线和编码器线。检修编码器时,先拆除风扇及其四颗螺丝;必要时再拆支架,不要拉扯编码器线。
|
||||
|
||||
打印时可选择适合温升环境的材料,要求打印商按摆放方向和工艺评估沉孔、孔径及平面变形;材料与印刷误差可能使孔需要轻微修整。不要过度拧紧塑料件。
|
||||
|
||||
## 验证范围
|
||||
|
||||
FreeCAD 检查:支架是一个有效实体,STL 为闭合网格;支架和简化风扇外框与原装配文件中的实体未出现正体积交叉。电机实物通风孔、风扇叶轮和电缆没有完整建模,因此检查不证明风路、风扇效率、旋转安全间隙或实物可装。首次装配应断电手动旋转检查,并在风扇启动和停止时比较编码器读数,避免风扇磁场影响检测。再在受控负载下实测温度;此模型不能证明持续力矩或安全温度。
|
||||
Reference in New Issue
Block a user