PURPOSE: A double shaft machine for making ridge is provided to take root in seeding by harrowing cultivated soil, and to form a ridge by softening soil in humid area. CONSTITUTION: A double shaft machine comprises a main power transfer device(20), a first and a second power transfer device(31), and a cultivation and a harrow devices. The main power transfer devices, which are arranged in the upper part of a body in order to receive the power of tractor, are connected to a first joint. The first and the second power transfer device connected to a second joint horizontally, and are arranged to both region of the front and the back of the body in order to receive the rotary power of the main transfer device. The cultivation and the harrow devices are installed between the first and the second transfer devices to rotate at opposite direction, and cultivates and harrows soil, respectively.본 발명은 이중 축 두둑 성형기에 관한 것이다.본 발명에 따르면, 전방에는 역회전하고, 후방에는 정회전하도록 2개의 축을 축설하고, 이 전방 회전축에는 경운 칼날을 장착하여 땅을 경운 하며, 후방 회전축에는 쇄토 칼날을 장착하여 경운된 흙을 부드럽게 쇄토함에 따라 파종시 뿌리의 활착이 우수하여 어린 식물의 생장에 도움을 주게 되었으며, 특히, 수분이 많은 지역에서 흙을 부드럽게 경운 할 수 있어 두둑 성형 작업이 용이한 효과가 제공된다.
