An agricultural row unit for use with a towing frame hitched to a tractor includes an attachment frame adapted to be rigidly connected to the towing frame, a linkage pivotably coupled to the attachment frame, and a row unit frame having a leading end pivotably coupled to the linkage to permit vertical pivoting movement of the row unit frame relative to the attachment frame. A hydraulic cylinder coupled to the attachment frame and the linkage, for urging the row unit frame downwardly toward the soil, includes a movable ram extending into the cylinder, and a hydraulic-fluid cavity within the cylinder for receiving pressurized hydraulic fluid for advancing the ram in a direction that pivots the linkage and the row unit frame downwardly toward the soil. An accumulator positioned adjacent to the hydraulic cylinder has a fluid chamber containing a diaphragm, with the portion of the chamber on one side of the diaphragm being connected to the hydraulic-fluid cavity in the hydraulic cylinder, and the portion of the chamber on the other side of the diaphragm containing a pressurized gas.

An agricultural row unit for use with a towing frame hitched to a tractor includes an attachment frame adapted to be rigidly connected to the towing frame, a linkage pivotably coupled to the attachment frame, and a row unit frame having a leading end pivotably coupled to the linkage to permit vertical pivoting movement of the row unit frame relative to the attachment frame. A hydraulic cylinder coupled to the attachment frame and the linkage, for urging the row unit frame downwardly toward the soil, includes a movable ram extending into the cylinder, and a hydraulic-fluid cavity within the cylinder for receiving pressurized hydraulic fluid for advancing the ram in a direction that pivots the linkage and the row unit frame downwardly toward the soil. An accumulator positioned adjacent to the hydraulic cylinder has a fluid chamber containing a diaphragm, with the portion of the chamber on one side of the diaphragm being connected to the hydraulic-fluid cavity in the hydraulic cylinder, and the portion of the chamber on the other side of the diaphragm containing a pressurized gas.

A system for detecting the operational status of a ground engaging tool of a tillage implement including an agricultural implement including a frame and a tool assembly supported relative to the frame. The ganged tool assembly includes a toolbar coupled to the frame and one or more ground engaging tools coupled to the toolbar. The system further includes a sensor coupled to the tool assembly and configured to capture data indicative of a load acting on the one or more ground engaging tools. Additionally, the system includes a controller configured to monitor the data received from the sensor and compare at least one monitored value associated with the load acting on the ground engaging tool(s). Moreover, the controller is further configured to identify the ground engaging tool(s) as being plugged when the monitored value(s) differs from the predetermined threshold value.

A fully-automatic transplanting combined machine includes a traction apparatus, operation apparatus and a control system. The operation apparatus is mounted on the traction apparatus with a main body frame and is towed behind the traction apparatus. The operation apparatus includes a rotary tillage furrowing system, a system for slightly preparing soil and opening narrow furrows, a planting system, and a soil covering compacting system which are arranged successively from front to back. The planting system includes more than one planting unit. The fully-automatic transplanting combined machine is capable of orderly performing rotary tillage, cleaning stubble, leveling a border check, opening a furrow, cutting narrow slits, transplanting, covering soil, compacting soil in untilled soil at one process, so as to create the soil requirements for high-speed transplanting of blanket seedlings such as rape and other crops.

A cultivating disc for a tillage implement includes an attachment portion positioned at a radial center of the cultivating disc. The attachment portion includes one or more attachment features configured to couple the cultivating disc to the tillage implement about an axis of rotation of the cultivating disc. The attachment portion extends along a first plane perpendicular to the axis of rotation of the cultivating disc. The cultivating disc also includes a cutting edge portion positioned at a distal end of the cultivating disc relative to the axis of rotation. The cutting edge portion extends along a second plane parallel to the first plane. The cultivating disc further includes a curved connecting portion positioned between and connecting the attachment portion to the cutting edge portion. The curved connecting portion further defines one or more radii of curvature.

A tillage implement for variable tillage has a linkage mechanism disposed longitudinally between two gangs of annular harrow tools, the gangs each having a toolbar that is rotationally mounted on a frame of the implement. The linkage mechanism has a plurality of pivotally connected linkage arms, the toolbars each pivotally connected to at least one of the linkage arms. Operation of the linkage mechanism simultaneously rotates one toolbar about a first vertical rotation axis and the other toolbar about a second vertical rotation axis in an opposite rotational direction as the first toolbar. The implement has at least one wheel mounted on the frame longitudinally forward of both of the gangs or longitudinally rearward of both of the gangs. The tillage implement provides variable tillage while having a shorter frame to facilitate folding wing sections of the frame in a more compact manner for transportation while remaining assembled.

Disclosed is a ground working apparatus comprising a ground working apparatus having: a frame having a plurality of wheels attached; at least one removable ground working attachment supported directly or indirectly by the frame; a means which is adapted to move the at least one removable ground working attachment between a storage configuration and a ground working configuration; and a vehicle connection means; the apparatus configured such that when in use and when connected to a vehicle via the vehicle connection means movement of the attached vehicle causes the attached apparatus to move in the same direction as the attached vehicle and if the at least one removable ground working attachment is in or is moved to the ground working configuration this results in the at least one removable ground working attachment working the ground it engages with.

A system for determining material accumulation relative to ground engaging tools of an agricultural implement may include a frame member, and first and second ground engaging tools coupled to the frame member. The first and second ground engaging tools are configured to engage soil within a field as the agricultural implement is moved across the field. The first and second ground engaging tools are electrically isolated from each other. The system may further include a power source configured to apply a voltage across the first and second ground engaging tools, a sensor configured to measure a capacitance across the first and second ground engaging tools, and a controller communicatively coupled to the sensor. The controller may be configured to determine a presence of material accumulation between the first and second ground engaging tools based at least in part on the measured capacitance.

A tillage implement has a gang of rotary spider tines, each spider tine having a center portion and a plurality of teeth forming a peripheral edge of the spider tine. Each tooth is rearwardly curving from the intended direction of rotation and has a curved leading edge and a curved trailing edge that taper to a rounded outward tip. A distal end of each tooth is angled relative to a tooth base to form a flared paddle such that the flared paddle is angled with respect to the tooth base and center portion of the spider tine. A first set of teeth have flared paddles angled in a first direction and a second set have flared paddles angled in a direction opposite said first direction, with the first set being alternately positioned with the second set in a circumferential pattern around the peripheral edge of the spider tine.

A harvesting and sowing integrated compound operation machine, including a combine harvester, a stubble cleaning device, a topsoil loosening device, a fertilization device, a rotary tillage and ditching device, a sowing device, a detection device, a first driving device, a second driving device and a control device, wherein the stubble cleaning device is mounted below a header of the combine harvester; and the topsoil loosening device, the fertilization device, the rotary tillage and ditching device and the sowing device are mounted at a rear of a chassis of the combine harvester.