Axial combine with rotor and concave convertible to support different threshing elements

Claim 2

A mobile axial flow type threshing and separating unit comprising: a casing having a concave portion with means for threshing crop, a rotor having a threshing portion with means for threshing crop, said rotor being rotatably mounted in said casing and cooperating with said casing to pass crop material therethrough on rotation of said rotor and to pass crop material between said threshing means of said concave portion and said threshing portion for the threshing and separation of grain from crop material, said concave portion and said threshing portion comprising front parts and rear parts, said threshing means of said front part of said concave portion having concave bars and said threshing means of said front part of said threshing portion being rasp bars in rotative threshing relation with said concave bars, said threshing means of said rear part of said concave portion including spike structure and said rear part of said rotor has mounting means for detachably supporting tip structure with rasp bars and said threshing means of said rear part of said threshing portion includes barlike structure detachably secured to said mounting means and having spikes in threshing relation with said concave spike structure.

Claim 3

A mobile axial flow type threshing and separating unit as set forth in claim 1 wherein said casing has a side opening above said concave for access to change said threshing means on said rotor and concave and having a wall portion closing said opening for operation of the unit.

Claim 4

A mobile axial flow type threshing and separating unit comprising: a casing having a concave portion with means for threshing crop, a rotor having a threshing portion with means for threshing crop, said rotor being rotatably mounted in said casing and on rotation cooperating with said casing to pass crop material therethrough and between said threshing means of said concave portion and said threshing portion for the threshing and separation of grain from the crop material, said concave portion and said threshing portion comprising front parts and rear parts, said threshing means of said front part of said concave portion being concave bars and said threshing means of said front part of said threshing portion being rasp bars in rotative threshing relation with said concave bars, said threshing means of said rear part of said concave portion being spike structure and said threshing means of said rear part of said threshing portion being spikes in rotative threshing relation with said concave spike structure, and said rear part of said concave portion having mounting means for detachably supporting concave grate sections and plate-like means, said threshing means of said rear part of said concave portion includes plate-like structure detachably mounted on said mounting means and having spikes in threshing relation with said spikes of said threshing portion.

Claim 5

A mobile axial flow type threshing and separating unit comprising: a casing having a concave portion with means for threshing crop, a rotor having a threshing portion with means for threshing crop, said rotor being rotatably mounted in said casing and on rotation cooperating with said casing to pass crop material therethrough and between said threshing means of said concave portion and said threshing portion for the threshing and separation of grain from the crop material, said concave portion and said threshing portion comprising front parts and rear parts, said threshing means of said front part of said concave portion being concave bars and said threshing means of said front part of said threshing portion being rasp bars in rotative threshing relation with said concave bars, said threshing means of said rear part of said concave portion being spike structure and said threshing means of said rear part of said threshing portion being spikes in rotative threshing relation with said concave spike structure, and said rear part of said concave portion having mounting means for detachably supporting concave grate sections and plate-like means, said threshing means of said rear part of said concave portion includes plate-like structure detachably mounted on said mounting means and having spikes in threshing relation with said spikes of said threshing portion.

Claim 6

A mobile axial flow type threshing and separating unit as set forth in claim 3 wherein said casing has a side opening above said concave portion for access to change said threshing means of said concave portion and has a wall portion closing said opening for operation of the unit.

Claim 7

A mobile axial flow type threshing and separating unit as set forth in claim 3 wherein said rear part of said concave portion has two longitudinally spaced transverse members and two longitudinally extending beams extending therebetwEen and attached thereto.

Claim 8

A mobile axial flow type threshing and separating unit as set forth in claim 5 wherein said mounting means include curved transversely extending rods attached to said beams and extending circumferentially to hold said threshing means in place.

Claim 9

A mobile axial flow type threshing and separating unit as set forth in claim 6 wherein said transverse members have circumferentially extending flanges axially projecting towards one another and said beams have circumferentially extending rods attached thereto and said plate-like means set on said flanges and are held in place by said curved rods.

Claim 10

A mobile axial flow type threshing and separating unit as set forth in claim 3 wherein said concave portion of said rear part has axially extending grate sections as well as said concave plate-like structure.

Claim 11

A mobile axial flow type threshing and separating unit as set forth in claim 8 wherein said grate sections have generally radially extending sides and said plate-like structure is held in position by said radially extending sides.

Claim 12

A mobile axial flow type threshing and separating unit comprising a casing having a concave portion with means for threshing crops, a rotor having a threshing portion with means for threshing crops, said rotor being rotatably mounted in said casing and on rotation cooperating with said casing to pass crop material therethrough and to pass crop material between said threshing means of said concave portion and said threshing portion for the threshing and separating of grain from crop material, said concave portion and said threshing portion comprising front parts and rear parts, said threshing means of said front part of said concave portion being concave bars and said threshing means of said front part of said threshing portion being rasp bars in rotative threshing relation with said concave bars, said threshing means of said rear part of said concave portion including spike structure and said threshing means of said rear part of said threshing portion being spike structure in rotative relation with said concave spike structure means, said rear part of said rotor has mounting means for detachably supporting tip structure with rasp bars and said rotor threshing means including bar-like structure detachably mounted on said rotor mounting means and having spikes, said rear part of said concave portion has mounting means for detachably supporting concave grate sections and plate-like structure, said concave threshing means including plate-like structure detachably mounted on said mounting means and having spikes in threshing relation with said rotor spikes on rotation of said rotor.

Claim 13

A mobile axial flow type threshing and separating unit comprising a casing having a concave portion with means for threshing crops, a rotor having a threshing portion with means for threshing crops, said rotor being rotatably mounted in said casing and on rotation cooperating with said casing to pass crop material therethrough and to pass crop material between said threshing means of said concave portion and said threshing portion for the threshing and separating of grain from crop material, said concave portion and said threshing portion comprising front parts and rear parts, said threshing means of said front part of said concave portion being concave bars and said threshing means of said front part of said threshing portion being rasp bars in rotative threshing relation with said concave bars, said threshing means of said rear part of said concave portion including spike structure and said threshing means of said rear part of said threshing portion being spike structure in rotative relation with said concave spike structure means, said rear part of said rotor has mounting means for detachably supporting tip structure with rasp bars and said rotor threshing means including bar-like structure detachably mounted on said rotor mounting means and having spikes, said rear part of said concave portion has mounting means for detachably supporting concave grate sections and plate-like structure, said concave threshing means including plate-like structure detachably mounted on said mounting means and having spikes in threshing relation with said rotor spikes on rotation of said rotor.