Joint expanding device and shear wall crack repairing process applying same

• Main Authors: LIAO GUOWEN, ZENG HUALIN, ZHOU HUORAN, LIAO QINGHUA, WEI JINHAN, LIU BAIYAN
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2021
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; FIXED CONSTRUCTIONS; FORMS; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING

The invention relates to a joint expanding device and a shear wall crack repairing process applying the joint expanding device. The joint expanding device comprises a shell, the shell is provided with a driving cavity, a transmission cavity, a grinding cavity and a power source cavity, a driving motor is arranged in the driving cavity, a transmission assembly is arranged in the transmission cavity, a grinding wheel is rotationally arranged in the grinding cavity. The power source cavity is used for installing a battery to supply power to the driving motor, and a dust removal piece is further arranged in the grinding cavity. A rotating shaft of the driving motor penetrates into the transmission cavity from the driving cavity, a driven shaft is further arranged in the transmission cavity, the transmission assembly transmits power of the driving motor to the driven shaft, and the driven shaft penetrates into the grinding cavity from the transmission cavity so as to drive the grinding wheel to rotate. The joint e