Modular shifting system

A modular shifting system, comprising:

• a transmission including an input shaft and an output shaft;
• a transmission housing;
• gear trains accommodated in the transmission housing and constituting at least two shiftable gear ratios for establishing a transmission ratio between the output shaft and the input shaft;
• and
• shift devices detachably attachable to the transmission housing for shifting between the at least two shiftable gear ratios;
• wherein
• the shift devices comprise an electrically actuated shift device and a pneumatically actuated shift device, respectively, and
• the modular shifting system is configured such that the electrically actuated shift device is interchangeable with the pneumatically actuated shift device and vice versa;
• wherein the pneumatically actuated shift device comprises a housing detachably attachable to the transmission housing of the modular shifting system, a first pneumatically actuated shift rod configured to reciprocate in an axial direction and accommodated in the housing, and a second pneumatically actuated shift rod configured to reciprocate in the axial direction and accommodated in the housing, wherein the first pneumatically actuated shift rod is coupled to a first shifting means configured to shift a first follower of the transmission, the second pneumatically actuated shift rod is coupled to a second shifting means configured to shift a second follower of the transmission, the first pneumatically actuated shift rod and the second pneumatically actuated shift rod are co-axial, and the first pneumatically actuated shift rod of the pneumatically actuated shift device axially penetrates the second pneumatically actuated shift rod.