Page 60 - Electrician -1st Year - TT
P. 60
– úW¥Vp Bm ¥¬pXõe CVk§Wm (The radial 12.5 ª.Á ÏßdL[Üj Õû[ YûW úTôPd
arm drilling machine) á¥V §\u ùTt\Õ. ¥¬p Nd¡úXô ApXÕ
ám×j Õû[«úXô (tapered hole)
(çi ¥¬pXõe CVk§Wm Utßm úW¥Vp
ùTôÚjRlTÓ¡\Õ.
Bm CVk§Wm ¿eLs TVuTÓjÕm NkRolTm
HtTPôÕ GuTRôp CeÏ AÕ Tt± ©pXo ¥¬pXõe CVk§Wm (The pillar drilling
®[dLlTP®pûX) machine): C§p ùT¬V Õû[ úTôP CVÛm.
ç¦p AûUkÕs[Rôp çi ¥¬pXõe
T¦ úUûP«p ùTôÚjRlThÓs[
ùNu£¥q ¥¬pXõe CVk§Wm (Sensitive CVk§Wm G]lTÓm. CÕ enlarged version Au±
úY\pX. ClùTô±Vô]Õ Fu\ô¦L[ôp
bench driling machine) : £±V úYûX ùNnYRtÏ
CßdLlThÓ RûW«p T§dLlTh¥ÚdÏm.
TPj§p Lôh¥V G°V YûL T¦ úUûP«p
Bt\p YônkR úUôhPôoL[ôp (electric motor)
ùTôÚjRlThÓ CVdLlTÓm CkR ¥¬pXõe
CVdLlTÓm ClùTô± L¥]Uô]
CVk§Wj§u Eßl×Ls TPj§p LôhPl
ThÓs[]. (Fig 3) T¦LÞdÏ (heavy duty) Ht\Õ. úYßThP TX
A[ÜL°p ¡ûPdÏm. CqYûL ùTô±L°p
®û] úUûPûV SLoj§ CVdL TtNhPØm
£ß TdLWØm (rack and pinion) Ju±ûVkR
AûUl× Es[Õ.
40 TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.1.11 - 16
