A cold planer is provided. The cold planer includes an engine and an enclosure compartment for a milling rotor. The enclosure compartment includes a frame defining an opening of the enclosure compartment. The enclosure compartment includes a moldboard connected to the frame. The moldboard is configured to move vertically between a first position and a second position with respect to the frame. An interfacing arrangement includes a first pair of components carried by the frame and a second pair of components carried by the moldboard. The components of one of the first pair of components and the second pair of components have slanted edges. The first and second pairs of components are configured to allow a lateral movement of the moldboard when the moldboard is in the first position and to engage one another to prevent the lateral movement of the moldboard when the moldboard is in the second position.

A cold planer is provided. The cold planer includes an engine and an enclosure compartment for a milling rotor. The enclosure compartment includes a frame defining an opening of the enclosure compartment. The enclosure compartment includes a moldboard connected to the frame. The moldboard is configured to move vertically between a first position and a second position with respect to the frame. An interfacing arrangement includes a first pair of components carried by the frame and a second pair of components carried by the moldboard. The components of one of the first pair of components and the second pair of components have slanted edges. The first and second pairs of components are configured to allow a lateral movement of the moldboard when the moldboard is in the first position and to engage one another to prevent the lateral movement of the moldboard when the moldboard is in the second position.

A grader moldboard structure, comprising a left moldboard, a plurality of middle moldboard having the same structure, and a right moldboard that are sequentially connected to form a long stripe-like moldboard body; wherein two sides of the middle moldboard are each provided with a non-strike-through transverse half-waist circular groove and a semi-circular hole in the groove, connection edges of one sides of the left moldboard and the right moldboard are each provided with a non-strike-through transverse half-waist circular groove and a semi-circular hole in the groove, the two half-waist circular grooves being spliced to form a waist circular groove for inserting a connection block, a positioning circular hole corresponding to a circular hole formed in the middle of the waist circular groove being provided in the middle of the connection block.

A grader moldboard structure, comprising a left moldboard, a plurality of middle moldboard having the same structure, and a right moldboard that are sequentially connected to form a long stripe-like moldboard body; wherein two sides of the middle moldboard are each provided with a non-strike-through transverse half-waist circular groove and a semi-circular hole in the groove, connection edges of one sides of the left moldboard and the right moldboard are each provided with a non-strike-through transverse half-waist circular groove and a semi-circular hole in the groove, the two half-waist circular grooves being spliced to form a waist circular groove for inserting a connection block, a positioning circular hole corresponding to a circular hole formed in the middle of the waist circular groove being provided in the middle of the connection block.

A tool combination, including a share tip and an adjoining guide element, wherein the share tip and the guide element have threaded receptacles for fastening to a tine. An easy and secure fastening of both the share tip and the guide element is achieved according to this invention if the guide element has a threaded receptacle which is covered in the tool advancement direction by a cover portion of the share tip.

A tool combination, including a share tip and an adjoining guide element, wherein the share tip and the guide element have threaded receptacles for fastening to a tine. An easy and secure fastening of both the share tip and the guide element is achieved according to this invention if the guide element has a threaded receptacle which is covered in the tool advancement direction by a cover portion of the share tip.

An agricultural machine includes a crop row sensor which has a movable paddle which interacts with plants in the crop row, and which periodically generates a sensor signal representing a position of the paddle. A signal processing system includes a memory which stores a plurality of sensor signals. The system determines a minimum magnitude of the stored sensor signals, and generates a drop rate signal representing a change in the sensor signal in a period of time. A gap detection unit generates the gap signal if the minimum signal is less than a threshold and if the drop rate is greater than a drop rate threshold. Thus, the system generates a gap signal when the paddle encounters a gap in the crop row.