风魂8023 发表于 2023-12-14 09:20:07

请教各位大佬 这种剪叉机构最低点推力怎么计算?

各位大佬,最近接到这种垂直剪叉机构设计,但最低点的启动力矩计算把小弟难住了查过了一些资料和文献,发现都是斜着安装的或者水平安装的,,垂直的第一次见下面计算方式是根据一些文献写的,但正常剪叉机构丝杆受力应该是和叉臂与水平面夹角有关,在最低点是力最大的时候,但我计算后结果是个定值请教一下各位大佬这种机构应该怎么计算丝杆受力?

剪叉机构采用滚珠丝杆作为剪叉机构驱动。1)    剪叉机构在极限载荷作用下,当床处于最低位置时,系统的驱动力输出最大,此条件为机构工作的极限状态。对剪叉机构进行受力分析,受力简图如下。data:image/png;base64,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                              由上图剪叉机构整体受力分析可得:
FAy = FEy= Q/41
剪叉机构工作台及叉臂的受力情况如下,通过对机构整体及各个部件进行受力分析,并根据力平衡原理可得:
FAy= FCy = FEy = FFy = Q/42
FBy = F’ By = F3
FBx= F’Bx = 04
根据力矩平衡原理,对A进行力矩平衡分析可得:
Fl cosθ= FCyL cosθ+ FByL*0.5cosθ5
其中θ为叉臂与工作台夹角,l(485mm)为D点到A点距离,L(720mm)为叉臂长度,则有上式可得:驱动力
F = 36Q/25= 5760 N6



惊风泣雨 发表于 2023-12-14 09:32:09

你垂直顶,你就算个重力啊,剪刀叉只是导向机构。

leioukupo 发表于 2023-12-14 09:56:37

就只是重力,×只是导向的

xue428032 发表于 2023-12-14 11:49:17

不就是重力吗做功的行程都一样

喂我袋盐 发表于 2023-12-14 12:12:43

xue428032 发表于 2023-12-14 11:49
不就是重力吗做功的行程都一样

我猜lz还在学校吧

那一抹星空 发表于 2023-12-14 12:39:40

本帖最后由 那一抹星空 于 2023-12-14 12:40 编辑

11

风魂8023 发表于 2023-12-14 13:09:36

惊风泣雨 发表于 2023-12-14 09:32
你垂直顶,你就算个重力啊,剪刀叉只是导向机构。

电机是固定在剪叉上的,应该不止重力?

风魂8023 发表于 2023-12-14 13:14:24

leioukupo 发表于 2023-12-14 09:56
就只是重力,×只是导向的

所以计算出是个定值,但和文献的结果不一样所以考虑是不是因为电机固定在剪叉上的,所以分析没做好

SNT 发表于 2023-12-14 13:29:04

我建议你换个行业

凸轮机械手 发表于 2023-12-14 13:42:43

用虚位移计算
页: [1] 2
查看完整版本: 请教各位大佬 这种剪叉机构最低点推力怎么计算?