Crop harvesting apparatus
A crop harvesting apparatus includes a pressure generator configured to generate a pressure, a driver configured to have a shape that changes in response to receiving the pressure from the pressure generator, and a cutter configured to cut an object to be cut in accordance with a change in the shape of the driver.
1 . A crop harvesting apparatus comprising:
a pressure generator configured to generate a pressure;
a driver configured to have a shape that changes in response to receiving the pressure from the pressure generator; and
a cutter configured to cut an object to be cut in accordance with a change in the shape of the driver,
wherein the driver includes:
a main body connected to the pressure generator and into which a fluid is injected; and
a driving member connected to the main body and configured to contract or expand in proportion to a size of a pressure formed inside the main body,
wherein the cutter includes:
a cutting body rotatably connected to the main body;
a gripper configured to extend from the cutting body and grip or release the object to be cut in a rotating direction of the cutting body;
a blade provided at the gripper and configured to cut the object to be cut as the gripper grips the object to be cut; and
a rotation support portion provided between the cutting body and the main body and configured to rotatably support the cutting body relative to the main body, and
wherein the rotation support portion includes:
a rotation pin inserted into an insertion portion provided at the main body and configured to rotatably support the cutting body; and
a snap ring fastened to the rotation pin and configured to prevent the rotation pin from being detached from the main body.
2 . The crop harvesting apparatus of claim 1 , wherein the main body includes:
a chamber;
an entry/exit member formed to pass through one side of the chamber and connected to the pressure generator; and
a transmitter formed to pass through the other side of the chamber and connected to the driving member.
3 . The crop harvesting apparatus of claim 1 , wherein the driving member has one side connected to the main body and the other side connected to the cutter to move the cutter while contracting or expanding.
4 . The crop harvesting apparatus of claim 1 , wherein the driving member is formed of a stretchable material.
5 . The crop harvesting apparatus of claim 1 , wherein the driving member is provided as a pair of driving members, and the pair of driving members are disposed at both sides of the main body.
6 . The crop harvesting apparatus of claim 1 , wherein the cutting body is provided as a pair of cutting bodies, and the pair of cutting bodies rotate in opposite directions from each other while the driving member contracts or expands.
7 . The crop harvesting apparatus of claim 1 , wherein the gripper is formed in the shape of a hook and surrounds a circumferential surface of the object to be cut.
8 . The crop harvesting apparatus of claim 1 , wherein the blade extends along an inner side surface of the gripper that comes in contact with the object to be cut.
9 . The crop harvesting apparatus of claim 1 , wherein the blade cuts the object to be cut as the main body moves in a state in which the gripper is gripping the object to be cut.