The invention discloses an automatic river channel floating object intercepting device. The automatic river channel floating object intercepting device comprises a left stand column, a right stand column, a gearbox body, an
impeller mechanism, an intercepting roller driving mechanism, a transition transmission mechanism, a left balance adjusting mechanism, a right balance adjusting mechanism and an intercepting roller, wherein the left stand column is fixed on one side of a river channel, and the right stand column is fixed on the other side of the river channel; the gearbox body is arranged on one side of the river channel, a
water flow inlet is formed in the front side of the lower part of the gearbox body, and a
water flow outlet is formed in the right side of the gearbox body; the
impeller mechanism is arranged at the lower part of a gearbox
body cavity; the intercepting roller driving mechanism is arranged at the upper part of the gearbox
body cavity; the transition transmission mechanism is arranged in the middle part of the gearbox
body cavity and is in transmission fit with the
impeller mechanism and the intercepting roller driving mechanism; and the left balance adjusting mechanism is arranged at the upper part of the left stand column and is connected with the intercepting roller driving mechanism, the left end of the intercepting roller is in transmission connection with the intercepting roller driving mechanism, the right end of the intercepting roller extends to the right stand column and is in sliding fit with the right stand column, and the right balance adjusting mechanism is arranged at the upper part of the right stand column and is connected with the right end of the intercepting roller. The device has the advantages that an ideal non-
electric energy consumption effect is realized; floating objects cannot cross the intercepting roller and escape; and the use flexibility is high.