A plough assembly (100) to be mounted on a beam (10) to be moved in a longitudinal forward direction (12) over a soil layer, having a soil surface, to be worked by the assembly (100), the assembly (100) including: a digging shank (110) to extend downwardly into the soil layer; a digging point (120) having a lowermost extremity (122) and to be fixed to a lower portion (112) of the shank (110); a pivotable connector (130) to connect the digging shank (110) to the beam (10); a fluid cylinder (140) mounted across the pivotable connector (130) such that pivoting of the shank (110) causes movement of the cylinder (140), the cylinder (140) being connected to a plough fluid line (150); a pressure reducing valve (160) connecting the plough fluid line (150) to a fluid circuit (170), the pressure reducing valve (160) being adapted to release fluid pressure from the plough fluid line (150) to the fluid circuit (170) at a pre-determined over-pressure point.

A system for automatically determining a trip magnitude of a ground engaging tool of an agricultural implement includes a ground-engaging system having an attachment structure coupled to a frame of an agricultural implement, a ground-engaging tool rotatably coupled to the attachment structure at a joint, and a biasing element configured to bias the ground-engaging tool towards a predetermined ground-engaging position. The system further includes a trip sensor configured to generate data indicative of a magnitude of rotation of the ground-engaging tool, the trip sensor being at least partially received within the biasing element. Additionally, the system includes a computing system communicatively coupled to the trip sensor, the computing system being configured to determine the magnitude of rotation of the ground-engaging tool based at least in part on the data generated by the trip sensor.

A first biasing element is positioned between an opening unit and a first frame for urging the opening unit downward. A lateral pivot combines the first biasing element to the first frame to allow for lateral movement in a horizontal plane of the opening unit. A first resilient device is positioned between the closing unit and the first frame to allow for lateral movement about a vertical axis of the closing unit and to urge the closing unit back to a neutral position. A second resilient device is positioned between the closing unit and the first frame to allow for vertical movement about a horizontal axis and to urge the closing unit back to a neutral position.

A machine includes a trailer frame, a tongue, a plurality of wheels, and an implement assembly. The tongue extends away from the trailer frame and supports a coupling. The plurality of wheels are coupled to the trailer frame. The implement assembly is coupled to the trailer frame, and includes a plurality of independent implement mounting assemblies coupled to a mounting rail. The independent implement mounting assemblies each include an arm, an implement, and a spring. The arm is selectively coupled to the mounting rail. The implement is coupled to a first end of the arm. The spring is coupled to a second end of the arm opposite the first end. The spring is configured to oppose movement of the implement relative to the mounting rail.

A hydraulic system including a first cylinder conduit configured to couple to a cylinder, an auxiliary conduit configured to couple to a case drain conduit, and a pressure regulator coupled to the first cylinder conduit and to the auxiliary conduit. The pressure regulator may block fluid flow to the auxiliary conduit if a first fluid pressure is less than or equal to a threshold pressure and enable fluid flow if the first fluid pressure is greater than the threshold pressure. The hydraulic system further includes a supplemental conduit with a check valve that directs fluid from the auxiliary conduit to a reservoir. The check valve blocks fluid flow if a second fluid pressure is less than or equal to a third fluid pressure, and enables fluid flow if the second fluid pressure greater than the third fluid pressure.

An apparatus, which may be a tillage apparatus, is disclosed that may have a flexible frame. The frame may be made from open members. The frame may support ground engagers and may be supported on wheel assemblies. The ground engagers may be connected to a spring trip mechanism. The ground engagers may be mounted to open members of the frame with a clamping style mechanism. The clamp mechanism may include wedge devices. The frame may be lowered and raised relative to wheels of the wheel assemblies with a lift mechanism. One row of ground engagers may be raised or lowered relative to the frame independent of another row of ground engagers. An anti-skid or skew control system may be employed in association with the independent height adjustment of one row of ground engagers. A system may be provided to maintain and control the height of a tow hitch forming part of the apparatus.

In one aspect, a system for detecting ground engaging tool float for an agricultural implement may include an implement having a ground engaging tool pivotally coupled to a frame and a biasing element coupled between the frame and the ground engaging tool. The biasing element may be configured to bias the ground engaging tool to a predetermined ground engaging tool position relative to the frame. The system may also include a sensor configured to detect a parameter indicative of a current position of the ground engaging tool relative to the frame. Additionally, the system may include a controller configured to monitor the current position of the ground engaging tool based on measurement signals received from the sensor and identify a time period across which the ground engaging tool is displaced from the predetermined ground engaging tool position. The controller may be further configured to compare the identified time period to a threshold time period to determine when a ground engaging tool float event is occurring during operation of the implement.

In one aspect, a wheel assembly configured for use with an agricultural implement. The wheel assembly includes a wheel comprising an outer ground-engaging element and an inner hub extending radially inwardly from the outer ground-engaging element. The wheel defines an internal cavity radially inwardly relative to the outer ground-engaging element. The wheel assembly further includes a sensor positioned within the internal cavity of the press wheel.

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 planting machine for forming a trench for planting seeds and/or fertilizer in a ground surface, including a frame that supports a planting assembly having a cutting tool and a gauge that sets the height of the cutting tool so as to determine a depth of the trench formed by the tool, wherein the assembly includes a linkage coupled between the frame to the gauge and an actuator to allow for remote adjustment of the linkage, in order to vary a planting depth of the trench.