Counterweight structure for vertical pump set motor system and vertical pump set motor system

The embodiment of the utility model discloses a counterweight structure for a vertical pump set motor system and the vertical pump set motor system. The counterweight structure for the vertical pump set motor system comprises a counterweight disc which comprises a first counterweight disc side face and a second counterweight disc side face which are oppositely arranged, and the first counterweight disc side face is provided with a counterweight hanging part used for hanging a counterweight; the counterweight disc positioning disc is connected with the counterweight disc and comprises a first positioning disc side surface and a second positioning disc side surface which are oppositely arranged; the side face of the second balance weight disc is adjacent to the side face of the first positioning disc, and the second balance weight disc and the side face of the first positioning disc are positioned through a first positioning spigot part. The side face of the second positioning disc is connected with a vertical