Self-adaptive control system for feed opening degree of round baler, and control method therefor

    公开(公告)号:US11252873B2

    公开(公告)日:2022-02-22

    申请号:US16333300

    申请日:2017-05-18

    摘要: A self-adaptive control system comprises a feeding device, a rotary coder, a displacement sensor, a hydraulic regulation system and a controller, wherein, the input end of the controller is electrically connected with the rotary coder, the displacement sensor, a first oil pressure sensor and a second oil pressure sensor respectively, and the output end of the controller is electrically connected with a solenoid directional valve via an interlocking controller; the controller takes the bearing force of piston rods and the rotation speed and the rotation speed change rate of a feeding knife roller as input variables and takes the positions of the piston rods as an output variable, to establish a fuzzy control model of the feeding mouth opening of the feeding device, the extension and retraction of the piston rods in a left oil cylinder and a right oil cylinder under hydraulic driving are regulated actively by controlling a three-position four-way solenoid directional valve, and thereby self-adaptive control of the feeding mouth opening is achieved.

    Combine harvester cleaning control and cleaning method

    公开(公告)号:US10143135B2

    公开(公告)日:2018-12-04

    申请号:US15544845

    申请日:2015-03-17

    摘要: A combine harvester self-adaptive cleaning control apparatus, includes a return plate, a cleaning sieve, a cleaning centrifugal blower, an impurity collection and stirring auger, a grain collection and stirring auger, a cleaning grain loss monitoring sensor, a grain tank grain impurity rate automatic monitoring apparatus, and an on-line monitoring and control system. The on-line monitoring and control system is connected to the cleaning centrifugal blower, the cleaning grain loss monitoring sensor, the grain tank grain impurity rate automatic monitoring apparatus, and a power driving mechanism of a louver sieve having an adjustable opening. Also disclosed is a self-adaptive cleaning method of the cleaning apparatus which can automatically adjust various working parameters according to a working quality of a working process, control failure rate, and improve a down-time working time for the apparatus.

    Assembly quality detecting device and method for wind screen cleaning system based on streamline pattern

    公开(公告)号:US11428603B2

    公开(公告)日:2022-08-30

    申请号:US16626987

    申请日:2018-09-07

    摘要: 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.

    Threshing device with two-way pull wires and adjustable threshing clearance and combined harvester

    公开(公告)号:US11330764B2

    公开(公告)日:2022-05-17

    申请号:US16626908

    申请日:2019-03-26

    摘要: A threshing device with two-way pull wires and adjustable threshing clearance includes a tensioning mechanism, and several grid bars in clearance fit with side plates, wherein the tensioning mechanism is mounted on the several grid bars so that the grid bars can move in radial and tangential directions in the clearance; the tensioning mechanism includes a tangential tensioning device and a radial tensioning device, wherein the radial tensioning device is mounted in the radial direction of any one of the grid bars, so that the grid bars can move in the radial direction in the clearance; the tangential tensioning device is mounted in series in the tangential direction of the grid bars, so that the grid bars can move in the tangential direction in the clearance. Further disclosed is a combined harvester, which includes the threshing device with two-way pull wires and adjustable threshing clearance.

    Device for conveying and feeding wet material for cross-flow hot air combine harvester

    公开(公告)号:US11272664B2

    公开(公告)日:2022-03-15

    申请号:US16627963

    申请日:2017-12-19

    摘要: A device for conveying and feeding wet material for a cross-flow hot air combine harvester, the device consisting of a hot air pumping part and a material conveying part. The hot air pumping part uses an air suction pump (4) to pump a flow of hot waste air from an engine radiator (1) of the combine harvester by means of an air suction pipeline (3) so as to provide hot air flow for the material conveying and feeding device. The material conveying part consists of a chain harrow-type conveying groove structure (A) and a cross-flow air chamber structure (B), wherein the chain harrow-type conveying groove structure (A) is used for forcibly conveying and feeding a material; and the cross-flow air chamber structure (B) uses hot air to dry the material, blows to assist in feeding the material, and uses a cross-flow air wheel (14) to forcibly feed the material.

    Longitudinal axial flow drum structure having adjustable threshing diameter

    公开(公告)号:US11304371B2

    公开(公告)日:2022-04-19

    申请号:US16763234

    申请日:2018-03-28

    IPC分类号: A01F12/22 A01F7/06 A01F12/18

    摘要: A longitudinal axial flow drum structure having an adjustable threshing diameter includes a threshing drum, a transmission mechanism, a diameter regulating mechanism and a regulating steel wire pulling mechanism. The transmission mechanism delivers power to regulating devices of the diameter regulating mechanism. The diameter regulating mechanism is connected with the transmission mechanism and the threshing drum to enable threshing diameter regulation. The transmission mechanism and the diameter regulating mechanism are installed inside a feeding cylinder of the threshing drum. The threshing diameter is regulated in real-time and stepless manner by adjusting the regulating steel wire pulling mechanism to pull a regulating steel wire in the transmission mechanism.

    DEVICE FOR CONVEYING AND FEEDING WET MATERIAL FOR CROSS-FLOW HOT AIR COMBINE HARVESTER

    公开(公告)号:US20210137008A1

    公开(公告)日:2021-05-13

    申请号:US16627963

    申请日:2017-12-19

    摘要: A device for conveying and feeding wet material for a cross-flow hot air combine harvester, the device consisting of a hot air pumping part and a material conveying part. The hot air pumping part uses an air suction pump (4) to pump a flow of hot waste air from an engine radiator (1) of the combine harvester by means of an air suction pipeline (3) so as to provide hot air flow for the material conveying and feeding device. The material conveying part consists of a chain harrow-type conveying groove structure (A) and a cross-flow air chamber structure (B), wherein the chain harrow-type conveying groove structure (A) is located at an upper part of the cross-flow air chamber structure (B) and is used for forcibly conveying and feeding a material; and the cross-flow air chamber structure (B) uses hot air to dry the material, blows to assist in feeding the material, and uses a cross-flow air wheel (14) to forcibly feed the material. By using excess heat that is generated by the engine of the combine harvester to perform auxiliary blowing and drying during the process of conveying and feeding a wet material, the feeding device may lower the temperature of the engine and reduce the effects of heat radiation and ageing that high temperatures have on surrounding devices, and may lower the water content of a wet agricultural material, thus preventing blockages produced because of moisture.