Chainwheel, Drum Motor, Semi-Finished Chainwheel Product and Method for Producing a Chainwheel

Patent metadata

Field	Value
Publication number	US-2022306395-A1
Application number	US-202017616684-A
Country	US
Kind code	A1
Filing date	Jun 19, 2020
Priority date	Jun 27, 2019
Publication date	Sep 29, 2022
Grant date	—

Abstract

The invention relates to a chainwheel ( 1, 1′ ) for transferring a drive output from an input shaft, more particularly from a drum motor ( 800 ), onto a synthetic modular belt ( 900 ), a drum motor ( 800 ) for driving a synthetic modular belt, a semi-finished chainwheel product ( 10 ) for a chainwheel ( 1, 1′ ) and a method for producing a chainwheel ( 1, 1′ ). The chainwheel comprises at least one toothed ring and an outer ring ( 200, 200′ ) and an inner ring ( 300, 300′ ) adjoining the toothed ring, wherein the inner ring ( 300, 300′ ) and the outer ring ( 200, 200′ ) are connected to one another via bridges ( 410, 410′ ).

First claim

1 . A sprocket ( 1 , 1 ′) for transferring a drive power from a drive shaft, in particular from a drum motor ( 800 ), to a plastic modular belt ( 900 ), the sprocket ( 1 , 1 ′) comprising at least one toothed ring ( 110 ) and an outer ring ( 200 , 200 ′), which adjoins the toothed ring ( 110 ), and an inner ring ( 300 , 300 ′), wherein the inner ring ( 300 , 300 ′) and the outer ring ( 200 , 200 ′) are connected to one another by means of webs ( 410 , 410 ′).

2 . The sprocket ( 1 , 1 ′) as claimed in claim 1 ,
characterized in that the sprocket ( 1 , 1 ′) comprises at least two toothed rings, the teeth of which are preferably arranged offset relative to one another in a circumferential direction, and/or
characterized in that the teeth of a toothed ring ( 110 ) or of both toothed rings ( 110 , 120 ) are formed with tooth flanks of differing inclination, and/or
characterized in that the outer ring ( 200 , 200 ′) radially inwardly and/or directly adjoins the toothed ring or the toothed rings ( 110 , 120 ), and/or the outer ring ( 200 , 200 ′) bears the toothed ring or the toothed rings ( 110 , 120 ).

3 . The sprocket ( 1 , 1 ′) as claimed in claim 1 ,
characterized in that the inner ring ( 300 , 300 ′) is spaced apart from the outer ring ( 200 ) in a radial direction or the outer ring ( 200 , 200 ′) directly adjoins the inner ring ( 300 , 300 ′), and/or
characterized in that the outer ring ( 200 , 200 ′) partially encloses the inner ring ( 300 , 300 ′) in an axial direction, and/or
characterized in that the outer ring ( 200 , 200 ′) extends partially along the inner ring ( 300 , 300 ′) in the radial direction, and/or
characterized in that the webs ( 410 , 410 ′) extend in the radial direction, in particular from the outer ring ( 200 , 200 ′) to the inner ring ( 300 , 300 ′), and/or
characterized in that the webs directly adjoin the inner ring ( 300 , 300 ′), preferably an end face of the inner ring ( 300 , 300 ′), in the axial direction, and/or
characterized in that the webs ( 410 , 410 ′) are spaced apart from one another in the circumferential direction, and/or
characterized in that individual, multiple or all webs extend over a total radial extent of the inner ring ( 300 , 300 ′) in the radial direction, and/or
characterized in that individual, multiple or all webs extend only over a part of the radial extent of the inner ring ( 300 , 300 ′) in the radial direction, and/or
characterized in that cavities ( 420 ) are formed between the webs ( 410 , 410 ′), and/or
characterized by an intermediate disk ( 430 ) which extends between the outer ring ( 200 , 200 ′) and the inner ring ( 300 , 300 ′) and preferably connects the outer ring ( 200 , 200 ′) and the inner ring ( 300 , 300 ′) and the webs ( 410 , 410 ′) to one another.

4 . The sprocket ( 1 , 1 ′) as claimed in claim 1 ,
characterized in that the inner ring ( 300 , 300 ′) has a cutout for receiving a parallel key ( 820 ) which is preferably arranged on the drive shaft, and/or
characterized in that the inner ring ( 300 , 300 ′) has projections ( 340 ), in particular exactly three projections ( 340 ), for abutment against the drive shaft, wherein the projections ( 340 ) preferably protrude radially inward, and/or wherein the cutout for receiving the parallel key ( 820 ) is preferably arranged on one of the projections ( 340 ), and/or wherein the cutout and/or the projections ( 340 ) preferably extend over a total axial length of the inner ring ( 300 , 300 ′).

5 . The sprocket ( 1 , 1 ′) as claimed in claim 1 ,
characterized in that the inner ring ( 300 , 300 ′) has an outer circumferential surface ( 350 ), wherein the outer circumferential surface ( 350 ) of the inner ring ( 300 , 300 ′) preferably deviates from a cylindrical shape, and/or wherein the outer circumferential surface ( 350 ) of the inner ring ( 300 , 300 ′) preferably has one or more projections ( 352 ) which are in particular spaced apart in the circumferential direction and/or one or more indentations ( 351 ) which are in particular spaced apart in the circumferential direction, and/or wherein the outer circumferential surface ( 350 ) of the inner ring ( 300 , 300 ′) preferably has one or more steps ( 353 ) which are in particular spaced apart in the circumferential direction, and/or wherein the outer circumferential surface ( 350 ) of the inner ring ( 300 , 300 ′) preferably has at least two or more portions which are in particular spaced apart in the circumferential direction and which have different radii, and/or
characterized in that the outer ring ( 200 , 200 ′) has, on its first end face, a first shoulder ( 210 ) which preferably projects beyond the first end face in the axial direction, and/or the outer ring ( 200 , 200 ′) has, on its second end face, a second shoulder ( 220 ) which preferably projects beyond the second end face in the axial direction, and/or
characterized in that a first end face of the inner ring ( 300 , 300 ′) forms a first shoulder ( 310 ), and/or a second end face of the inner ring ( 300 , 300 ′) forms a second shoulder ( 320 ).

6 . The sprocket ( 1 , 1 ′) as claimed in claim 1 ,
wherein an axial extent from the first shoulder ( 210 ) to the second shoulder ( 220 ) of the outer ring ( 200 , 200 ′) preferably corresponds to an axial extent from the first shoulder ( 310 ) to the second shoulder ( 320 ) of the inner ring ( 300 , 300 ′), and/or
wherein preferably an axial extent from the first shoulder ( 210 ) to the second shoulder ( 220 ) of the outer ring ( 200 , 200 ′) is greater than an axial extent of the at least one toothed ring ( 110 ), preferably is greater than an axial extent of two toothed rings ( 110 , 120 ), and/or an axial extent from the first shoulder ( 310 ) to the second shoulder ( 320 ) of the inner ring ( 300 , 300 ′) is greater than an axial extent of the at least one toothed ring ( 110 ), preferably is greater than an axial extent of two toothed rings ( 110 , 120 ), and/or
wherein preferably an axial extent from the first shoulder ( 210 ) to the second shoulder ( 220 ) of the outer ring ( 200 , 200 ′) is greater than an axial extent of the webs ( 410 , 410 ′), and/or an axial extent from the first shoulder ( 310 ) to the second shoulder ( 320 ) of the inner ring ( 300 , 300 ′) is greater than an axial extent of the webs ( 410 , 410 ′), and/or
wherein preferably an axial extent from the first shoulder ( 210 ) to the second shoulder ( 220 ) of the outer ring ( 200 , 200 ′) is greater than an axial extent of the intermediate disk ( 430 ), and/or an axial extent from the first shoulder ( 310 ) to the second shoulder ( 320 ) of the inner ring ( 300 , 300 ′) is greater than an axial extent of the intermediate disk ( 430 ), and/or an axial extent of the webs ( 410 , 410 ′) is greater than an axial extent of the intermediate disk ( 430 ).

7 . The sprocket ( 1 , 1 ′) as claimed in claim 1 ,
characterized by a first, in particular annular-disk-shaped, cover disk ( 510 ) which preferably extends from the first shoulder ( 210 ) of the outer ring ( 200 , 200 ′) to the first shoulder ( 310 ) of the inner ring ( 300 , 300 ′) and/or is preferably fastened to the first shoulder ( 210 ) of the outer ring ( 200 , 200 ′) and/or the first shoulder ( 310 ) of the inner ring ( 300 , 300 ′), in particular is fastened in a fluid-tight and/or materially bonded manner and/or by way of a welded connection, and/or
characterized by a second, in particular annular-disk-shaped, cover disk ( 520 ) which preferably extends from the second shoulder ( 220 ) of the outer ring ( 200 , 200 ′) to the second shoulder ( 320 ) of the inner ring ( 300 , 300 ′) and/or is preferably fastened to the second shoulder ( 220 ) of the outer ring ( 200 , 200 ′) and/or the second sh

Assignees

• Interroll Holding Ag

Inventors

• Schumacher Jürgen

Classifications

• B65G17/08

  the surface being formed by the traction element · CPC title

• F16H55/171

  Toothed belt pulleys · CPC title

• B65G2207/26

  Hygienic features, e.g. easy to sanitize · CPC title

• B65G23/06 Primary

  with projections engaging abutments on belts or chains, e.g. sprocket wheels · CPC title

• F16H55/30 Primary

  Chain-wheels · CPC title