An assembly quality detection device and a method for a wind screen cleaning system based on streamline pattern, includes a main body of a test bench and a detection system. The main body of the test bench includes a test bench rack and a cleaning centrifugal fan; the inside of the test bench rack is provided with a cleaning space. The detection system includes a smoke generation and transmission device, a two-degree-of-freedom smoke fixed-point release mechanism, a high-speed image acquisition system and a control system. A fixed base is installed on the upper end of the outlet of the cleaning centrifugal fan, a linear moving guide rail device is installed on the fixed base, the linear moving guide rail device is equipped with a moving slider, the moving slider is installed with a rotating mechanism, the rotating mechanism output end is provided with a smoke releasing duct, the smoke releasing duct is communicated with the smoke generation and transmission device. The detection device and method can test the manufacturing and assembly quality of the cleaning system of the combine harvester by combining the characteristics of wind tunnel streamline pattern with image processing and corresponding mathematical operation.

A method for determining a vibration pattern in a crop processing section of an agricultural harvester. The method may start with bringing the crop processing section into a predetermined pseudo-operational configuration. When in the predetermined pseudo-operational configuration, a plurality of vibration sensors is used to establish a reference vibration pattern. The established reference vibration pattern is then stored in a memory. Analysis of the reference vibration pattern may provide useful information about a current mechanical status of moving as well as stationary parts. Vibration patterns of many agricultural harvesters may be gathered in a cloud and processed using AI tools.

A threshing apparatus includes: a threshing unit 5; a first sorting unit 11 that is arranged below the threshing unit 5, is driven to reciprocate along the front-rear direction, and threshes processed material from the threshing unit 5; and a second sorting unit 12 that is arranged below the first sorting unit 11, is driven to reciprocate along the front-rear direction, and threshes processed material from the first sorting unit 11. The front end portion of the second sorting unit 12 is provided with a second grain pan 22 that conveys processed material rearward, and the front end portion of the second grain pan 22 is also provided with a wall portion 48 that is higher than the second grain pan 22 in order to be able to prevent processed material from falling forward from the second grain pan 22.

An apparatus and method for distributing crop material onto a cleaning sieve of an agricultural combine. The method includes providing at least one sensor configured and operable for sensing information representative of at least one of a quantity of grain associated with the crop material distributor and an inclination angle associated with the crop material distributor, and outputting signals representative thereof. The method includes providing a crop material distributor disposed between a threshing system of the combine and the sieve, for distributing crop material from the threshing system generally evenly onto the sieve. The method includes providing an apparatus operably associated with the distributor for controllably distributing crop material onto the sieve. The method includes controlling a position of the apparatus as a function of signals from the at least one sensor.

A combine harvester comprises a threshing unit arranged to receive and thresh a crop stream. Separating apparatus are located downstream and rearward of the threshing unit and are arranged to receive the threshed crop stream and convey such a rearward direction. The front of a return pan, disposed below the separating apparatus, overlaps the rear of a stratification pan, disposed below the threshing unit. The stratification pan is driven in an oscillating manner to convey a primary grain/chaff stream rearwardly to a rear edge from where the primary grain/chaff stream falls under gravity into a cleaning unit. The return pan is driven in an oscillating manner to convey a secondary grain/chaff stream forwardly to a front edge from where the secondary grain/chaff stream falls under gravity to combine with the primary grain/chaff stream on the stratification pan. The cleaning unit comprises a fan for generating a cleaning airstream which is directed through the falling grain/chaff stream to encourage the lighter material away from the grain. A plurality of crop flow disrupting elements in the form of fins or tines are secured to the underside of the return pan above the stratification pan to disrupt the grain/chaff stream and enhance stratification thereof.

In a combine harvester the cleaning arrangement is placed above the threshing and separation system so that the sieves of the cleaning arrangement can be wider than the distance between the front wheels or tracks of the harvester. A supply such as one or more auger beds are provided underneath the threshing and separation system, for gathering the grain/residue mixture in a single location. From that location, an elevator transports the grain/residue mixture up towards the cleaning arrangement, where it is distributed over the width of the cleaning arrangement.

An assembly for rotating a chain or toothed belt includes a shaft and a sprocket rotatably mounted on the shaft. The sprocket includes a plurality of teeth configured to engage the chain or toothed belt. The assembly further includes a shield assembly covering at least a portion of the sprocket. The shield assembly has an interior groove formed therein defining an enclosed interior space. Each of the teeth of the sprocket rotate through the enclosed interior space during a full rotation of the sprocket.

The present invention provides a peeling, screening and cleaning device for Torreya grandis Merrilliis. The device comprises an outer rectangular water container, the inner surface of the outer rectangular water container is fixedly connected with the first antirust horizontal separating net, the inner surface of the outer rectangular water container is fixedly connected with the second antirust horizontal separating net. According to the device, the outer pericarp can be separated from the Torreya grandis Merrilliis through the cooperation of the outer rectangular water container, water pump and hard water spray pipe.

A monitoring system for a combine harvester. The monitoring system includes a sensor configured to provide a measurement wave to a flow of crop residue on the harvester and to receive a response wave from the flow of crop residue. The monitoring system further includes a processor having an input terminal for receiving a response signal of the sensor representative of the response wave. The processor is configured to determine a crop parameter associated with the density of the flow of crop based on the response signal of the sensor. The processor further has an output terminal for outputting a density signal representing the crop parameter.

A combine including a chassis, a crop residue handling system including a residue chopper, residue spreader, a spreader chute and a swath selection door, a receiver configured to determine a location of the combine, and a controller that controls the residue handling system. The controller configured to determine the location of the combine on a map, execute a crop residue spreading mode in response to the controller determining that the location of the combine is located in a designated crop residue spreading zone indicated on the map, and execute a crop residue windrow mode in response to the controller determining that the location of the combine is located in a designated crop residue windrow zone indicated on the map.