Transmission, gear shifting fork structure and assembling method of gear shifting fork structure

The invention discloses a transmission, a gear shifting fork structure and an assembling method of the gear shifting fork structure. The gear shifting fork structure comprises a shifting fork shaft (11) and a shifting fork body (13), and the shifting fork body (13) is fixed to the shifting fork shaft (11) in a sleeving mode; the gear shifting device further comprises an embedded part (12), the shifting fork shaft (11) is provided with a through hole (111) penetrating through the two ends of the shifting fork shaft (11), and the embedded part (12) is located in the through hole (111) and fixed to the shifting fork shaft (11) in a sealed mode so that the through hole (111) can be divided into two mutually-closed cavities. Through structural optimization of the gear shifting fork structure, the shifting fork shaft of the gear shifting fork structure can meet the functional requirement that the shifting fork shaft is directly driven by hydraulic oil, meanwhile, the weight can be reduced to a large extent, and the