JPS5936535 | GRINDING AND AGITATING DEVICE OF LUMP MATERIAL |
WO/2013/060330 | WEAR-RESISTANT ROLLER |
JPS59500407 | [Title of the Invention] Shredding equipment of asphalt |
US2696949A | 1954-12-14 | |||
US5203513A | 1993-04-20 | |||
US3862721A | 1975-01-28 |
1. | The characteristic feature of the crushing roller especially for fodder granulating, having series of incisions in form of cogs or cylindrical hollows is that the cylindrical surface of the roller has transversely incised hollows in form of arches, where points of arches radiuses are situated at level of the symmetry axle of the roller or below this axle and width and depth of cogs in the middle part of the roller are bigger than the notch, which symmetrically going away towards extreme side roll edges. |
2. | The roll according to claim 1 is characterised with it that points of radial arches are situated above the symmetry axle of the roller and width and depth of cogs in the middle and extreme parts are lower than for cogs crossing symmetry axle of the roller. |
3. | The roll according to claims 1 and 2 is characterised with it that lateral edges of cogs are inclined with respect to one another with"a"angle. |
The characteristic feature of the crushing roller for pellets production, according to the invention, is making incised cogs on the cylindrical surface in form of arches over the whole roll circumference, while cogs depths are diverse.
Cog incision in form of consecutive arches of variable depth has favourable effect on fodder movement between a roller and a mating matrix.
Correct fodder gathering and squeezing to the matrix is also good feature.
It is also favourable that durability of the roller and the matrix is increased thanks to even wear of mating surfaces, what is influenced by limitation of fodder pulling out of side zones of the crushing roller.
The crushing roller according to the invention rationalises granulation process through good fodder gathering and squeezing it into the matrix.
Cogs incising in form of arches is easy to make, little laborious, what significantly decreases costs of manufacturing.
The object of the invention is presented on figures, where: - fig. 1 shows an exemplary roller with double cogs incisions in form of arches, - fig. 2 shows an exemplary roller with singly cogged incisions in form of arches, - fig. 3 shows a section of a roller along the A-A line, marked on fig. 2, - fig. 4 shows shape of an incised cog with incising tool fixed at level of the X-X symmetry axle of the roller, - fig. 5 shows shape of an incised cog with incising tool fixed above the level of the X-X symmetry axle of the roller, - fig. 6 shows shape of an incised cog with incising tool fixed below the level of the X-X symmetry axle of the roller, - fig. 7 shows the B-B section of an incised cog along a groove in developed view according to incisions shown on fig. 4 and 6, - fig. 8 shows the C-C section of an incised cog along a groove in developed view according to incisions shown on fig. 5, - fig. 9 shows D-D section from fig. 5 and fig. 6, - fig. 10 shows F-F section from fig. 5, - fig. 11 shows H-H section from fig. 4 and fig. 6, - fig. 12 shows E-E section from fig. 5.
Cogs'dimensions in D-D section shown on fig. 9 are smaller than cogs of H-H sections presented on fig. 11. Cogs'dimensions in F-F section are bigger than sections in E-E and D-D shown on fig. 5. Dimensions of a, b and c cogs may have the same or various dimensions, while cogs'walls are placed with respect to one another with"a"angle.
Dimension a<g and dimension b<h Dimension d>j>a and dimension k>e Dimension i>c and dimension jM According to the invention, cogs of the crushing roller-during fodder squeezing into matrix- form with mating matrix partially open or closed chambers, including pressed fodder. Change of incisions depth, decreasing from the middle towards external edges of the cylindrical part of the roller, equals squeezing pressure over the whole roll's width, what favourably effects on wear of the roller and the matrix.