A 1935, wani sabon gyare-gyare na BT tankuna, wanda ya karbi BT-7 index, da aka sanya a cikin sabis da kuma sanya a cikin taro samar. An samar da tankin har zuwa 1940 kuma an maye gurbinsa a cikin samar da tankin T-34. (Har ila yau, karanta "Matsakaici Tank T-44") Idan aka kwatanta da tankin BT-5, an canza tsarin ƙwanƙwasa, an inganta kariyar sulke, kuma an shigar da injin da ya fi dacewa. An riga an aiwatar da wani ɓangare na haɗin haɗin faranti na sulke ta hanyar walda.
An samar da bambance-bambancen tanki masu zuwa:
- BT-7 - tanki mai linzami ba tare da tashar rediyo ba; tun 1937 an samar da shi tare da turret conical;
- BT-7RT - tankin umarni tare da tashar rediyo 71-TK-1 ko 71-TK-Z; tun 1938 an samar da shi tare da turret conical;
- BT-7A - tankin bindigogi; makamai: 76,2 mm KT-28 tanki gun da 3 DT bindigogi;
- BT-7M - tanki mai injin dizal V-2.
A cikin duka, an samar da tankuna fiye da 5700 BT-7. An yi amfani da su a lokacin yakin neman 'yanci a yammacin Ukraine da Belarus, a lokacin yakin da Finland da kuma a cikin Babban Patriotic War.
Farashin BT-7.
Ƙirƙiri da zamanance
A 1935, KhPZ fara samar da na gaba gyara na tanki, BT-7. Wannan gyare-gyare ya inganta iyawar ƙetare, ƙarin aminci da sauƙaƙe yanayin aiki. Bugu da ƙari, BT-7 ya ƙunshi sulke masu kauri.
Tankunan BT-7 suna da ƙugiya da aka sake fasalin, tare da babban ƙarar ciki, da sulke masu kauri. An yi amfani da walda sosai don haɗa farantin sulke. Tankin dai an sanye shi da injin M-17 mai iyakantaccen iko da tsarin kunna wuta da aka gyara. An ƙara ƙarfin tankunan mai. BT-7 yana da sabon babban kama da akwatin gear, wanda A. Morozov ya haɓaka. Ƙunƙwan gefen gefen sun yi amfani da birki masu yawo mai canzawa wanda Farfesa V. Zaslavsky ya tsara. Domin isa yabo na KhPZ a fagen tanki gini a 1935 da shuka da aka bayar da Order of Lenin.
A kan BT-7 na batutuwa na farko, da kuma a kan BT-5, an shigar da hasumiya na cylindrical. Amma riga a cikin 1937, cylindrical hasumiya ya ba da hanya zuwa conical duk-welded, halin da mafi m m kauri. A cikin 1938, tankuna sun sami sabbin abubuwan gani na telescopic tare da madaidaiciyar manufa. Bugu da ƙari, tankuna sun fara amfani da waƙoƙin tsage-tsalle tare da raguwa mai raguwa, wanda ya nuna kansu mafi kyau yayin tuki da sauri. Amfani da sababbin waƙoƙi yana buƙatar canji a cikin ƙirar ƙafafun tuƙi.
Wasu BT-7s na rediyo (tare da turret na silindi) an sanye su da eriya ta hannu, amma BT-7s tare da turret conical sun sami sabuwar eriyar bulala.
A cikin 1938, wasu tankuna na layi (ba tare da rediyo ba) sun sami ƙarin bindigar injin DT wanda ke cikin tudun turret. A lokaci guda kuma, dole ne a rage yawan harsashi. Wasu tankuna an sanye su da bindigar P-40 na hana jiragen sama, da kuma wasu fitilun bincike masu ƙarfi (kamar BT-5) da ke sama da bindigar kuma suna ba da haske ga abin da ake hari. Duk da haka, a aikace, ba a yi amfani da irin waɗannan fitilu ba, tun da ya nuna cewa ba su da sauƙin kulawa da aiki. Tankokin sun kira BT-7 "Betka" ko "Betushka".
Na karshe serial model na BT tanki shi ne BT-7M.
Kwarewar yaƙi a Spain (wanda tankunan BT-5 suka shiga) sun nuna buƙatar samun ƙarin tanki a cikin sabis, kuma a cikin bazara na 1938 ABTU ya fara haɓaka magajin BT - wheeled mai sauri. - Tankin da ake bin sawu da makamantansu, amma mafi kyawun kariya da kariya daga wuta. A sakamakon haka, samfurin A-20 ya bayyana, sa'an nan kuma A-30 (duk da cewa sojojin sun yi tsayayya da wannan na'ura). Duk da haka, waɗannan inji sun kasance mafi kusantar ba ci gaba da layin BT ba, amma farkon layin T-34.
A layi daya tare da samar da zamani na BT tankuna, KhPZ ya fara haifar da wani m tank dizal engine, wanda a nan gaba ya kamata a maye gurbin unreliable, capricious da wuta m carburetor engine M-5 (M-17). A baya a 1931-1932, ofishin zane na NAMI / NATI da ke Moscow, wanda Farfesa AK Dyachkov ya jagoranta, ya ƙera wani aikin injin dizal D-300 (12-cylinder, V-shaped, 300 hp), wanda aka kera na musamman don shigar da tankuna. ... Duk da haka, a cikin 1935 ne aka gina na farko samfurin wannan injin dizal a Kirov Shuka a Leningrad. An shigar da shi akan BT-5 kuma an gwada shi. Sakamakon ya kasance mai ban takaici saboda ƙarfin diesel bai isa ba a fili.
A KhPZ, sashen na 400 da K. Cheplan ke jagoranta ya tsunduma cikin kera injinan dizal na tanki. Sashen na 400th ya haɗu tare da sashen injuna VAMM da CIAM (Cibiyar Cibiyoyin Jiragen Sama ta Tsakiya). A cikin 1933, injin dizal BD-2 ya bayyana (12-Silinda, V-dimbin yawa, haɓaka 400 hp a 1700 rpm, amfani da mai 180-190 g / hp / h). A cikin Nuwamba 1935, an shigar da injin dizal akan BT-5 kuma an gwada shi.
A cikin Maris 1936, an nuna tankin diesel ga babbar jam'iyya, gwamnati da jami'an soja. BD-2 yana buƙatar ƙarin haɓakawa. Duk da wannan, an riga an sanya shi cikin sabis a 1937, a ƙarƙashin sunan B-2. A wannan lokaci, akwai wani reorganization na 400th sashen, wanda ya ƙare a cikin bayyanar a Janairu 1939 na Kharkov Diesel Building Plant (HDZ), kuma aka sani da Shuka No. 75. Shi ne KhDZ wanda ya zama babban masana'anta na dizels V-2.
Daga 1935 zuwa 1940, an samar da tankuna 5328 BT-7 na duk gyare-gyare (ban da BT-7A). Sun kasance cikin sabis tare da sojoji masu sulke da makanikai na Red Army na kusan dukkanin yakin.
