The invention discloses a bucket tooth installation structure convenient for rapid disassembly and
assembly. The bucket tooth installation structure comprises a bucket tooth, a tooth seat and a pin
assembly, wherein the bucket tooth is internally provided with a bucket
tooth cavity, the front part of the tooth seat is provided with a tooth seat head, the bucket
tooth cavity is complementary with the tooth seat head in shape, and the bucket tooth is fixedly connected with the tooth seat head through the pin
assembly; the left side wall and the right side wall of the big end of the bucket toothcavity are symmetrically provided with coaxial holes in a mirroring way, wherein the coaxial holes are vertical to the central surface of the bucket tooth, and an inner hole and an outer hole of the bucket
tooth cavity form an annular concave table; one end of a pin in the pin assembly is provided with a pin cap, the pin cap is arranged in the annular concave table at one side of the bucket tooth, and a memory
alloy expanding and contracting ring is arranged outside the other end of the pin and arranged in the annular concave table at the other side of the bucket tooth; or the other end of the pin is provided with an annular groove, and the memory
alloy expanding and contacting ring is arranged in the annular groove and arranged in the annular concave table at the other side of the buckettooth. According to the invention, the pin assembly provided with the memory
alloy expanding and contracting ring is adopted, rapid assembly and disassembly of the bucket teeth are realized by electrodes or
flame heating, and the pin assembly has large transverse rigidity, provides large fastening force and is reliable to connect.