Spacer rod yana nufin na'urar da aka sanya a kan tsagawar waya don gyara tazarar da ke tsakanin wayoyi masu tsaga, don hana wayoyi daga bulala, don danne girgizar iska da kuma motsin sub-span. Ana shigar da sandunan sarari gabaɗaya a tsakiyar tazara, nisan mitoci 50 zuwa 60 [1]. Don sandunan sararin samaniya na wayoyi masu tsaga biyu, masu tsaga huɗu, shida da kuma wayoyi guda takwas, ana rage girman faɗakarwar waya mai tsaga biyu da kashi 50%, na waya mai tsaga huɗu da kashi 87% da 90% idan aka kwatanta da na waya mara sarari bayan an shigar da sandar sarari.

Na'urar kariya wacce ke riƙe da wayoyi da yawa a cikin madugu na lokaci (sanduna) a tsaka-tsakin dangi.

Babban abubuwan da ake buƙata don sandunan sararin samaniya shine cewa matsi ya kamata ya sami isasshen ƙarfi kuma ba za a bar shi ya sassauta yayin aiki na dogon lokaci ba, kuma ƙarfin gabaɗaya ya kamata ya yi tsayayya da ƙarfin centripetal na wayoyi masu tsaga lokacin da layin ya ɗan kewaya kuma gajiya a ƙarƙashinsa. dogon lokaci vibration. Ana iya raba sandunan sarari zuwa kashi biyu daga aikin damping da rigidity. Sandunan damping spacer suna cushe a cikin sassa masu motsi na kushin roba mai jurewa, kuma suna amfani da dampling pad ɗin don cinye ƙarfin girgiza wayar, sannan kuma suna haifar da damping tasirin girgizar wayar. Idan ba tare da wannan roba pad shi ne m spacer, saboda rashin aikin jijjiga, gabaɗaya ana amfani da shi don wuraren da ba su da sauƙi don samar da jijjiga ko don masu sararin samaniya.

Wato, sarari mai damped da sarari mara tsinke. Halin damping spacer shine ana amfani da roba azaman kayan damping a haɗin gwiwa mai motsi na sarari don cinye ƙarfin girgiza wayar kuma ya haifar da tasirin damping akan girgizar wayar. Saboda haka, wannan spacer ya dace da duk yankuna. Duk da haka, idan aka yi la'akari da tattalin arzikin layin watsawa, irin wannan nau'i na sararin samaniya an fi amfani dashi don layi a wuraren da wayoyi ke da wuyar girgiza. Wurin da ba a daɗe ba yana da ƙarancin juriya kuma ana iya amfani da shi don layi a wuraren da girgiza ba ta da sauƙi don samarwa ko azaman mai tsalle.