-
公开(公告)号：US20240298579A1
公开(公告)日：2024-09-12
申请号：US18666139
申请日：2024-05-16
CPC分类号： A01F12/26 , A01F12/448 , A01D69/06 , A01D75/28 , A01F12/181 , A01F12/28
摘要： A concave section for a harvester includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.
-
公开(公告)号：US20240172595A1
公开(公告)日：2024-05-30
申请号：US18520943
申请日：2023-11-28
发明人： Andrew Dahl , Marion Calmer , Daniel Wallerstedt
IPC分类号： A01F12/26
CPC分类号： A01F12/26
摘要： A MOG limiting device, herein described as a MOG limiter, approximates a portion of the curvilinear length of a concave. The MOG limiting device can include a connection point near the middle of a concave, slightly offset from center. A bolt, washer and nut assembly protrudes downwardly from the underside of the concave. Two assemblies are positioned in the middle of each side of the concave. The assemblies cooperate with a mounting plate on the MOG limiters to form an upper concave connection and a lower concave connection in each half of the concave. In the cross frame, insert slots are positioned to receive a hinge point located at the end of each arced member making up the frame (rail supports). The hinge points are slidably inserted into the opening and then rotated upwardly to be positioned adjacent to and in conformity with the curvature of the underside of the concave with the connection assemblies holding the MOG limiter in place.
-
公开(公告)号：US20240049645A1
公开(公告)日：2024-02-15
申请号：US17819010
申请日：2022-08-11
申请人： DEERE & COMPANY
发明人： GARRICK W. HERBST , MICHAL KOCIS , MARTIN KOLLAR , JESUS LANDINEZ
摘要： A concave assembly for an agricultural combine harvester comprises a concave, a cover, and a cover actuator. The concave comprises a grate. The cover has an opened position uncovering at least a portion of the grate to allow crop flow through the at least the portion of the grate and a closed position covering the at least the portion of the grate to block crop flow through the at least the portion of the grate. The cover actuator comprises a four-bar linkage and moves the cover between the opened position and the closed position.
-
公开(公告)号：US20230157212A1
公开(公告)日：2023-05-25
申请号：US18049376
申请日：2022-10-25
申请人： DEERE & COMPANY
发明人： DANIEL JUNG , JONAS ZOLLONDZ , MARCO BROSCHART , MICHAEL LETTAU
摘要： A threshing concave for a combine harvester comprises a crop processing device which is arranged at the inlet to the threshing concave and can be adjusted between an active and an inactive position, adjustable elements which are arranged downstream of the inlet to the threshing concave and can be adjusted between an active and an inactive position, and an adjustment mechanism for separate adjustment of the crop processing device and the adjustable elements, which comprises a movable adjustment element which is coupled to the crop processing device and to the adjustable elements.
-
公开(公告)号：US11470783B2
公开(公告)日：2022-10-18
申请号：US16012805
申请日：2018-06-20
申请人： Deere & Company
发明人： Friedrich Lauer
摘要： A threshing or separating concave for grain harvesting is equipped with curved cheeks, between which concave bars having an elongated cross-sectional profile extend, the curved inside edges of which are provided with a rounded inside edge, and having concave rods extending in the direction of the curve, which pass through holes in the concave bars that are immediately adjacent to the rounded inside edge.
-
公开(公告)号：US11464169B2
公开(公告)日：2022-10-11
申请号：US16826194
申请日：2020-03-21
申请人： Brian G. Robertson
发明人： Brian G. Robertson
摘要： A threshing concave assembly is disclosed having a threshing concave bar wherein the threshing bar is comprised of two threshing surfaces having a dihedral angle relationship relative to each other. In addition, in another aspect the threshing bar can be comprised of two dihedral surfaces whereby one surface face has about 130% greater surface area than its adjacent surface face. Alternatively, one surface face of the threshing bar can be 1.3x wider than its adjacent surface face. In another aspect the threshing bar can be comprised of two dihedral surfaces whereby one surface face has about a 170% greater surface area than its adjacent surface face.
-
公开(公告)号：US20220232777A1
公开(公告)日：2022-07-28
申请号：US17724014
申请日：2022-04-19
发明人： Chad A. Koudela
摘要： A universal threshing concave for an agricultural combine for harvesting different types of crops is disclosed. The threshing concave comprises a frame with a pair of opposite side members and opposite end members. The invention further comprises an array of threshing bars angled and notched along their longitudinal extent, and hexagonal in cross-section. Each bar is seated in openings in the end members of said frame.
-
公开(公告)号：US20210235624A1
公开(公告)日：2021-08-05
申请号：US16873111
申请日：2020-02-03
申请人： George J. Kuchar
发明人： George J. Kuchar
IPC分类号： A01F12/26
摘要： In accordance with one aspect of the present invention, there is provided a concave which has axially extending members and circumferentially extending members. With the round axially extending, members are elevated between 1/32 inch and ¼ inch, causing the crop to roll and break apart more completely helping the separation process.
-
公开(公告)号：US10945376B2
公开(公告)日：2021-03-16
申请号：US16183693
申请日：2018-11-07
发明人： Nicholas Estock , Clinton T. Baltz , Trey Davenport, III , Wayne T. Flickinger , Benjamin D. Kemmerer , Joshua A. Lesher
摘要： A threshing and separating system for an agricultural harvester includes: a rotor; a rotor cage at least partially enclosing the rotor, the rotor cage including a first flat wall, a second flat wall connected to and angled with respect to the first flat wall, and a curved wall connected to the second flat wall; and at least one vane connected to the first flat wall or the second flat wall.
-
公开(公告)号：US10716259B2
公开(公告)日：2020-07-21
申请号：US15681461
申请日：2017-08-21
摘要： A rotor and cage assembly includes a skeleton of curved spaced-apart side members affixed to laterally extending upper and lower spaced-apart members therebetween and surrounding the rotor. One of the curved spaced-apart side members is terminated with curved fingers. Three concave inserts insert laterally into the skeleton spanning 270° around the rotor. One of the concave inserts carries straight fingers that interlace between the skeleton side member curved fingers. A control assembly of plates having arcuate slots placed at 3 of the pivots of the skeleton assembly, 3 control bars connected to the skeleton pivots, and an actuator is connected separately to each control bar at one end effect arcuate rotation of the control bars resulting in the synchronized rotation of the arcuate slotted plates so that the interlaced straight fingers move closer together or farther apart with the fixed skeleton assembly curved fingers for different types of grain.
-
-
-
-
-
-
-
-
-
搜索结果
123 条记录 (耗时 0.019 秒)
