Heavy-duty truck speed transmission

• Main Authors: BANGFEI HE, ZHONGQI CHEN, LINGQUAN LU, YUGEN SUN
• Format: Patent
• Language: English
• Published: 09.11.2005
• Edition: 7
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

Disclosed is a heavy-duty automobile transmission mainly comprising a front shell, a back shell, an input shaft assembly, a middle shaft assembly, two-shaft assembly, an upper cap assembly, a double-rod operating top cover assembly, a planet driving mechanism assembly, a lubricating pump assembly and an electric controlling pneumatic operation mechanism assembly, etc. One end of the planet frame output shaft in the planet driving device assembly is meshed with a sun wheel by a planet wheel, the other end is supported on the back shell by a bearing, and the planet wheel comprises five planet wheel groups and forms an auxiliary transmission. The back end of the main box of the middle shaft in the middle shaft assembly is supported on a lock bearing cover by a bearing and is supported on the front shell by the lock bearing cover while the back end of the output shaft of the planet frame is connected with an output flange which adopts an end surface key structure. The utility model has the advantages of compact structure, multiple gearshifts, large speed ratio range, favorable lubrication performance, convenient operation, strong carrying capacity and low price, which can satisfy the request of large tonnage trucks to the transmission of multiple gearshifts and large speed ratio range.