公开(公告)号：US20090133533A1

公开(公告)日：2009-05-28

申请号：US12083950

申请日：2006-10-25

Applicant: Lin Yang ,  Shunli Wang ,  Zhijin Sun

Inventor： Lin Yang ,  Shunli Wang ,  Zhijin Sun

IPC: F16H3/02 ,  F16H3/38 ,  F16H3/30

CPC classification number: F16H37/043 ,  F16H3/095 ,  F16H61/705 ,  Y10T74/19167

Abstract: This invention relates to a main-box-and-auxiliary-box-structural twin-countershaft twelve-speed transmission, with a main box and an auxiliary box mainly. Said main box has an input shaft (1), a main shaft (10) and two countershafts (14) arranged symmetrically at the two sides of the main shaft, there being provided corresponding gear drive between the main shaft and the countershafts, there being provided six gears positioned independently and three synchronizers (4) on the main shaft, shift forks (5) for the synchronizers are connected to a shift lever via shift fork shafts (16) and via an operation mechanism. The auxiliary box has an auxiliary-box main shaft (20) and an auxiliary-box countershaft (22), a gear (29) engaging with a gear (28), a gear (25) engaging with a shaft gear (30), between the gear (25) and the gear (29) being arranged a synchronizer (9), a shift fork (15) and a shift fork shaft (31), said synchronizer (9) being self-locked by means of back taper teeth, and said shift fork shaft (31) being self-locked by means of a self locking mechanism comprising a spring (18) and a steel ball (19).

Abstract translation: 本发明涉及主箱和辅助箱结构的双中心十二速变速箱，主要是主箱和辅箱。 所述主箱具有输入轴（1），主轴（10）和对称地设置在主轴两侧的两个中间轴（14），在主轴和中间轴之间设有相应的齿轮传动 提供了独立的六个齿轮和主轴上的三个同步器（4），用于同步器的换档叉（5）通过换档拨叉轴（16）和操作机构连接到变速杆。 辅助箱具有辅助箱主轴（20）和副箱中间轴（22），与齿轮（28）啮合的齿轮（29），与轴齿轮（30）啮合的齿轮（25） 在齿轮（25）和齿轮（29）之间布置有同步器（9），换档拨叉（15）和换档拨叉轴（31），所述同步器（9）通过后锥形齿自锁 ，并且所述换档拨叉轴（31）通过包括弹簧（18）和钢球（19）的自锁机构自锁。