Powder bridging breaker

A powder bridging breaker configured to be installed at an outlet end (11) of a hopper (1), and comprising:

• a housing (2) being a ring shape body and having a powder passage (21) formed in a middle thereof, a gear box (23) positioned at a center of the housing (2), a first crossbeam (22) and a second crossbeam (72) located on an inner edge of the housing (2) and located opposite to each other, the first and second crossbeam (22), (72) supporting the gear box (23) located at the center of the housing (2), the first crossbeam (22) being a hollow tubular structure so as to accommodate a mechanical drive structure, the second crossbeam (72) being a hollow tubular structure so as to serve as a compressed air conduit;
• a power transmission assembly (3) comprising a longitudinal drive shaft (31), a longitudinal bevel gear (32), a transverse bevel gear (33), and a transverse drive shaft (34), the longitudinal drive shaft (31) inserted through the gear box (23) and connected to an upper cover (4), the longitudinal drive shaft (31) connected to the longitudinal bevel gear (32), the transverse drive shaft (34) inserted into the first crossbeam (22) and connected to the transverse bevel gear (33), the transverse bevel gear (33) engaged with the longitudinal bevel gear (32);
• an upper cover (4) positioned at a top of the gear box (23), an arm (42) extending from one side of the upper cover (4), a blade holder (43) located at an end of the arm (42);
• a blade (41) movably connected to the blade holder (43) for removal, cleaning, or replacement;
• a gear motor (5) connected to the transverse drive shaft (34) to rotate the transverse drive shaft (34), when the transverse drive shaft (34) rotates, the longitudinal drive shaft (31) is driven through the transverse bevel gear (33) and the longitudinal bevel gear (32) to rotate the upper cover (4) to drive the blade (41) for rotational movement, and
• a gear motor holder (51) connected between the housing (2) and the gear motor (5), the transverse drive shaft (34) being positioned within the gear motor holder (51).