The invention discloses a streetcar
gear transmission device for a low-floor streetcar. The streetcar
gear transmission device comprises an upper box body, a lower box body, a driving bearing seat
assembly and a driven bearing seat
assembly, wherein the upper box body is also provided with an oil inlet window, an oil collecting cavity, an oil discharging oil passage and a small oil window, the top of the upper box body is provided with a cover plate, the cover plate covers above a top opening of the oil collecting cavity, the driving gear seat
assembly also comprises an oil baffle ring, a sealing ring, a small sealing cover, a first separation sleeve and a second separation sleeve, the driven bearing assembly also comprises a large sealing cover, a first oil seal, a second oil seal and a positioning sleeve, a driven gear is in interference connection onto a driven bearing seat, one end of the driven bearing seat is provided with a driving end surface fluted disc, a matched hole and a first positioning pin hole, the outer periphery of the driven bearing seat is provided with a first step and a second step, the other end of the driven bearing seat is provided with an operation hole and a first screw bolt hole, the matching hole and the operation hole are communicated through a center hole, and an upper end hanging element and a lower end hanging element are arranged on the upper box body. The streetcar
gear transmission device has the advantages that the structure is simple and compact, the
lubrication sealing effect is good, and the oil level can be conveniently observed.