难得糊涂才 发表于 21-12-8 23:12:41

(伪)修理一个Power HD 1206TG舵机

1收了个1206舵机,下地没几天,突然不转了,一点反应没有。问卖家哥们,居然是2015年的古董。保修是没指望了,只好自己开拆。打开后盖,用电池直接连电机,没动静。把电机线接到别的电机上,能转动,说明电机挂了。两根线,有刷,多半是电刷问题。果然,电刷已经烧没了。
http://image.rcfans.com/pic/20211208/1638974346957747398.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

2这颗1715R-02A空心杯有刷电机,额定5V,轴端是0.25模13T齿轮。BEC供电是6V,难道是电压太高了,按说超压1V应该没啥问题,额定电压也不是最高电压,也不是长时间连续工作。
http://image.rcfans.com/pic/20211208/1638974429090345238.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20211208/1638974537407910174.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

3找遍某宝和某鱼也没难找到这个1715R,1688上找到一个工厂,加了销售,零售打样要100元一个,放弃。某鱼找到1718R,13元一个,参数很接近,电压7.4V。直径一样,长度多了3mm到手一看,齿轮是0.3模12T,配不上。
http://image.rcfans.com/pic/20211208/1638974976094139361.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

4接着折腾。想把旧电机齿轮拔下来,结果轴也下来了,空心杯的结构有点特殊,转子分了两部分。怀疑孔里打了胶,用喷枪烤了一下,顶针敲出来。费劲力气,结果1718电机的轴也被拔下来了。依法炮制,轴上有些细小的乳胶垫片,弄丢了的话电机齿轮会很响。空心杯的尾轴是软的,不像别的电机能用力压,差点搞报废一个。
http://image.rcfans.com/pic/20211208/1638975381525349955.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

5把电机放进舵机里面,发现第二个大齿轮会干涉舵机。齿轮高一点没事,低一点就转不动,难道是舵机堵转烧了,不知道现在的型号修复这个bug没。开始想把把二齿轮垫高,然而垫片挡住大齿轮的。用电磨笔把电机壳磨掉了,空心杯磁路是内部闭合的,理论上影响不大。
http://image.rcfans.com/pic/20211208/1638975820277525985.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20211208/1638975820392029411.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20211208/1638976048704107508.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

6齿轮装上,电机焊上,电位器是焊板上的,因为电机变长,电位器够不着齿轮了,拆下来用电阻腿延长再焊上。通电,能动了。理论上1718比1715更有劲吧。后盖出现了3mm间隙,下次打印一个后盖补上。
http://image.rcfans.com/pic/20211208/1638976213438128156.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
http://image.rcfans.com/pic/20211208/1638976213441545177.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20
现在1206换代了,不知道这个bug修复没有,哪位拆开看一下。

难得糊涂才 发表于 21-12-9 09:53:28

1718R01A和1715R01A的参数。扭矩常数和速度常数都比较接近。
http://image.rcfans.com/pic/20211209/1639014443270689856.jpg?x-oss-process=image/watermark,image_cGljLzIwMjExMDA2L29zc18xNjMzNTM0ODIxOTgzXzg2NF81MzNfNTYucG5n,t_50,g_se,x_20,y_20

难得糊涂才 发表于 21-12-9 09:55:05

1715字体似乎也像02A

caolemeng 发表于 21-12-9 18:59:53

我也有坏舵机,想尝试修一下,但是一直没开工

难得糊涂才 发表于 21-12-9 19:38:21

caolemeng 发表于 2021-12-09 18:59
我也有坏舵机,想尝试修一下,但是一直没开工

我打算改成无刷的

yyaa 发表于 21-12-22 10:53:13

大哥,求那个樱花二楼板图纸~

难得糊涂才 发表于 21-12-23 16:02:25

yyaa 发表于 2021-12-22 10:53
大哥,求那个樱花二楼板图纸~

邮箱发我

yyaa 发表于 21-12-23 21:44:01

难得糊涂才 发表于 2021-12-23 16:02
邮箱发我

327397018qq.com

yyaa 发表于 21-12-23 21:45:21

难得糊涂才 发表于 2021-12-23 16:02
邮箱发我

万分感谢https://app.rcfans.com/public/emotion/face_001.png

yyaa 发表于 21-12-23 22:13:51

yyaa 发表于 2021-12-23 21:44
327397018qq.com

少了一个@https://app.rcfans.com/public/emotion/face_018.png
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