Apparatus, systems and methods are provided for monitoring yield while harvesting grain. Grain released from paddles on the clean grain elevator chain of a harvester contacts a flow sensor which reports the rate of grain flow through the clean grain elevator. In some embodiments a brush is mounted to the chain and disposed to clean the flow sensor surface. In other embodiments a bucket mounted to the clean grain elevator chain releases grain against the flow sensor at a rate dependent on a grain property.

A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.

A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.

A crop lifter apparatus has a bracket for attachment to a header guard finger. A cylindrical groove in a front portion of the mounting bracket has an axis perpendicular to a travel direction and a lock bolt hole is defined through the mounting bracket at the groove. The rear of a finger support member has a cylindrical wall engaged in the groove, and defines a cylindrical lock aperture with an axis coincidental with the axis of the groove. A slot in the rear of the support member is oriented perpendicular to the axis of the lock aperture. A lock cylinder is engaged in the lock aperture and a lock bolt extends through the lock bolt hole and the slot and into the lock cylinder and is tightened to secure the support member to the mounting bracket at a selected finger angle. A length of the lifting finger may be adjustable.

A crop lifter apparatus has a bracket for attachment to a header guard finger. A cylindrical groove in a front portion of the mounting bracket has an axis perpendicular to a travel direction and a lock bolt hole is defined through the mounting bracket at the groove. The rear of a finger support member has a cylindrical wall engaged in the groove, and defines a cylindrical lock aperture with an axis coincidental with the axis of the groove. A slot in the rear of the support member is oriented perpendicular to the axis of the lock aperture. A lock cylinder is engaged in the lock aperture and a lock bolt extends through the lock bolt hole and the slot and into the lock cylinder and is tightened to secure the support member to the mounting bracket at a selected finger angle. A length of the lifting finger may be adjustable.

A corn reel assembly that allows for quick connection and detachment from a corn reel is provided. The corn reel finger assembly may be quickly assembled and disassembled without the need for tools so that corn reel fingers may be connected or detached from mounts connected to a corn reel axle in the field. By allowing for rapid connection and disconnection of corn reel fingers from mounts, the corn reel fingers may be utilized only in those portions of the field requiring it. Enabling for the elongated fingers of the corn reel finger assembly to be detached from a mount attached to the corn reel axle without requiring disconnection of the mount from the corn reel axle also allows for more compact storage, as well as replacement of individual fingers if damaged, as opposed to replacement of an entire assembly. In some embodiments, adjustments to the particular angle of the fingers relative to the corn stalks being harvested can also be quickly made in the field.

Ear lifter for crops having a support bar, wherein the support bar extends in a major direction of extension and has a fastening portion, a middle portion and a skid portion arranged one after the other in the major direction of extension.

Ear lifter for crops having a support bar, wherein the support bar extends in a major direction of extension and has a fastening portion, a middle portion and a skid portion arranged one after the other in the major direction of extension.

A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.

A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller; the stubble righting device is installed at the rear of the harvester, and is connected to the bracket by the stubble righting device hydraulic cylinder; the profiling contact sensor is configured to detect the height of the header above the ground and transmit data to the controller; the speed radar is configured to obtain and transmit speed information of the harvester to the controller; the hydraulic valve block is installed on the chassis frame and connected to the header lifting hydraulic cylinder and the stubble righting device hydraulic cylinder respectively; input terminals of the controller are connected to the profiling contact sensor and the speed radar, and output terminals of the controller are connected to the motor and hydraulic valve block.