Weeding machine

Abstract

The invention discloses a weeding machine. The machine comprises a rack, a driving device, a rotating disc, pin shafts and a cutter head, the driving device is arranged on the rack, and the driving device is fixedly connected with the rack; the rotating disc is rotationally connected with the rack, and the driving device is in driving connection with the rotating disc so that the rotating disc canrotate around the axis of the rotating disc; the number of the pin shafts is at least two, a plurality of stepped holes are formed in the upper end face of the rotating disc, the inner bottom faces of the stepped holes penetrate through the thickness of the rotating disc, grooves surrounding the circumferential faces of the pin shafts are formed in the circumferential faces of the pin shafts, andthe grooves are matched with steps of the stepped holes in a concave-convex manner; and a plurality of bushings are arranged on the upper end face of the cutter head, the pin shafts are inserted intothe bushings in a one-to-one correspondence manner, and the bushings are fixedly connected with the pin shafts. The invention provides the weeding machine which can prevent the rotating shaft on thecutter head from being bent and causing the cutter head to be stuck due to collision.

Description

technical field [0001] The invention relates to the technical field of weeding devices, in particular to a weeding machine. Background technique [0002] In daily life, the weeder can be used to cut the weeds in the haystack, especially in the vicinity of residential houses. It is generally necessary to trim the weeds regularly to avoid the influence or even threat of rats and snakes in the weeds. Human life and health. [0003] When the user uses the traditional weeder to weed the weeds, the motor in the traditional weeder is connected to the cutter head through the rotating shaft. The rotating shaft is connected with a nut through threads, and the cutter head is arranged between the nut and the motor. Set vertically. During use, once the cutter head or nut collides with hard objects such as stones, it may directly affect the shaft connected to the motor. Once the shaft bends, it may cause the cutter head to be stuck. Surround the periphery of the rotating shaft to avoid...

AI Technical Summary

Problems solved by technology

During use, once the cutter head or nut collides with hard objects such as stones, it may directly affect the shaft connected to the motor. Once the shaft bends, it may cause the cutter head to be stuck. Surround the periphery of the rotating shaft to avoid bending of the rotating shaft. After the cutterhead collides with hard objects outside, the cutterhead may break and splash outwards. Therefore, there is a risk that the cutterhead fragments that are disconnected and splashed outwards will hurt people. Hidden danger

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