A gear transmission device

Abstract

The application belongs to the technical field of gear transmission, and discloses a transmission gear device which comprises a driving gear part, a driven gear, a sleeve and a pressing assembly. The driving gear part comprises a connecting part and a driving gear arranged on the connecting part. The driven gear is sleeved on the connecting part, and the end face of the driven gear abuts against the end face of the driving gear. The driving gear and the driven gear can be engaged with a transmission part at the same time. The sleeve is sleeved on the connecting part. The end of the sleeve is engaged with the end face of the driven gear through teeth. The pressing assembly is arranged at one end of the connecting part. The pressing assembly comprises a pressing cover, a limiting column and an elastic piece. The pressing cover is connected to the other end of the sleeve. A containing cavity is formed between the pressing cover and the sleeve. The elastic piece is located in the containing cavity, and the end face of the elastic piece abuts against one end of the connecting part. The limiting column is arranged on the pressing cover. The limiting column can pass through the elastic piece and partially extend into one end of the connecting part, and the limiting column is in interference fit with the connecting part.

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