PROBLEM TO BE SOLVED: To provide a ground leveling device capable of suppressing occurrence of a desolate field surface having many irregularities.SOLUTION: There is provided a work machine in which a work part 4 is provided on a rear side of a travel vehicle body 2 via a lift link device 3, the work part 4 comprises a float 55, and a ground leveling rotor 27 for making a field surface level is provided on a front side of the float 55. One side of a ground leveling link member 6 is provided on a vertical link member 43 of the work part 4 so as to be turned, the other side of the ground leveling link member 6 is provided on a second vertical link 8 for supporting the ground leveling rotor 27, and a support pipe 65 of the work part 4 comprises an electric motor 7 and a gear mechanism for vertically moving the ground leveling link member 6. A ground switch 84 for detecting grounding of the ground leveling rotor 27 is provided, and when the grounding switch 84 becomes in a detection state, an operation of the electric motor 7 is stopped.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】 本発明の課題は、凹凸の多い荒れた圃場面の発生を抑える整地装置を提供することである。【解決手段】 走行車体2の後側に昇降リンク装置3を介して作業部4を設け、作業部4にはフロート55を設け、フロート55の前方に圃場面を均す整地ロータ27を設けた作業機において、作業部4の縦リンク部材43に整地リンク部材6の一側を回動可能に設け、整地リンク部材6の他側を整地ロータ27を支持する第2縦リンク8に設け、作業部4の支持パイプ65に整地リンク部材6を上下動させる電動モータ7とギア機構を設け、整地ロータ27の接地を検知する接地スイッチ84を設け、接地スイッチ84が検知状態になると電動モータ7の作動を停止させる構成とする。【選択図】図6
