US3459382A

US3459382A - Conical grain roller

Info

Publication number: US3459382A
Application number: US509590A
Authority: US
Inventors: Reynold J Renn
Original assignee: REYNOLD J RENN
Current assignee: REYNOLD J RENN
Priority date: 1965-11-24
Filing date: 1965-11-24
Publication date: 1969-08-05
Anticipated expiration: 1986-08-05

Description

Aug. 5, 1969 R. J. RENN CONICAL GRAIN ROLLER 3 Sheets-Sheet 1 Filed Nov. 24, 1965 Aug. 5, 1969 R. J. RENN 3,459,382

CONICAL GRAIN ROLLER Filed Nov. 24, 1965 s Sheets-Sheet 2 lamb 8- 5, 19,69 R. J. RENN 3,,459,382

CONICAL GRAIN ROLLER Filed Nov. 24. 1965 3 Sheets-Sheet 3 Fig.6

United States Patent 3,459,382 CONICAL GRAIN ROLLER Reynold J. Renn, 443 Riverdale Ave. SW., Calgary, Alberta, Canada Filed Nov. 24, 1965, Ser. No. 509,590 Int. C]. 1502:: 9/04, 15/00, 19/00 US. Cl. 241-141 27 Claims ABSTRACT OF THE DISCLOSURE My invention relates to new and useful improvements in grain rolling devices.

Grain rolling or crushing is usually accomplished by means of a hammer mill or by means of two cylindrical rollers in interfacial contact between which the grain passes.

However, the principal fault of the hammer mill is the fact that grain is fractured and shattered which, in many instances, is undesirable, and the principal fault of the cylindrical type grain roller is the fact that the angle of entry between the two rollers is relatively shallow unless the rolls are of large diameter thus causing many types of grain to slip and not be engaged by the rollers to be passed therethrough.

I have overcome these disadvantages by providing a pair of right conical rollers, the vertices of the conical rollers lying substantially in the same position with the axes of the rollers angulated so that the conical sides of the rollers contact one another along a line of contact.

The principal object and essence of my invention is therefore to provide a device of the character herewithin described which utilizes two right conical rollers in interfacial contact one with the other thus forming a relatively acute angle of entry which eliminates undesirable slippage of grain being passed therebetween.

Another object of my invention is to provide a device of the character herewithin described in which the interfacial contact between the two rollers can be adjusted.

Another object of my invention is to provide a device of the character herewithin described which includes means to permit the rollers to be spread apart in case a relatively hard object is encountered thus preventing damage to the faces or surfaces of the rollers.

Another object of my invention is to provide a device of the character herewithin described which includes means for adjusting the parallelism between the two rollers at the line of contact.

3,459,382 Patented Aug. 5, 1969 ice A still further object of the invention is to provide a device of the character herewithin described which is particularly suitable for use with a relatively slippery grain.

Another object of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture, and otherwise well suited to the purpose for which it is designed.

With the foregoing objects in view, and such other objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, my invention consists essentially in the arrangement and construction of parts all as hereinafter more particularly described, reference being had to the accompanying drawings in which:

FIGURE 1 is a side elevation of my device.

FIGURE 2 is an end elevation of FIGURE 1.

FIGURE 3 is a top plan view of the device with the hopper and casing removed.

FIGURE 4 is a side elevation opposite to that of FIG- URE 1 and with the hopper and easing removed.

FIGURE 5 is a top plan view of the preferred embodiment of my device.

FIGURE 6 is a section along the line 6-6 of FIG- URE 5.

In the drawings like characters of reference indicate corresponding parts in the different figures.

Proceeding therefore to describe my invention in detail, reference character 10 indicates a pair of spaced and parallel angle iron members having cross members 11 by which the device may be mounted upon conventional supporting structure 12.

A supporting framework collectively designated 13 is secured to the members 10*, said supporting framework including a pair of side channel members 14 converging towards a common axis 15 and being maintained in the desired position by means of spacer 16.

A cross channel member 17 spans the ends 18 of the channel members 14 thus forming a substantially triangular framework when viewed in plan as clearly shown in FIGURE 3.

An enclosure or casing 19 is mounted within the triangular supporting framework 13, said enclosure including a grain feeding hopper 20 formed upon the upper side thereof and communicating with the interior of the enclosure 19.

The lower end 21 of the enclosure is shaped and forms a discharge spout 22 also communicating with the interior of the enclosure.

The hopper 20 includes sloping sides 23 which converge twoards a discharge gate 24 spanning the base of hopper, the feed from the base being controllable by means of a feed adjustment plate 25 which is conventional in construction.

A bearing housing 26 is secured to one of the members 14 of the supporting framework and a main drive shaft 27 is journalled for rotation within this hearing housing and may be connected to a source of power such as an electic motor of power take-off device (not illustrated). Secured to the inner end 28 of the drive shaft is one of a pair of right conical rollers 29, said shaft being secured centrally of the circular base 30 thereof.

A channel type mounting member 31 is mounted by the end 32 thereof to a pivot pin assembly 33 nesting within the opposite channel 14 of the supporting structure and this mounting member also carries a bearing housing 26 within which is journalled an idling shaft 34.

The inner end 35 of the idling shaft 34 carries the other conical roller 36 of the pair hereinbefore described, said shaft also being secured centrally of the circular base 37 thereof.

Due to the angulation between the two channels 14 of the supporting structure, the apices 38 of the conical rollers are substantially coincident with one another whereas the axes 39 are angulated with respect to one another so that the conical surfaces 39' of the two conical rollers are in interfacial relationship along a line of contact 40 extending from the apices 38 to the circumerence or perimeter 41 of the circular bases as clearly illustrated in FIGURE 3 of the drawings.

Certain types of adjustment are desirable in the relationship between the two conical rollers and in this connection reference should be made to the hinge 33 hereinbefore described, of the mounting member 31.

A bracket 42 extends from the hinge or pivot assembly 33 part way across the member 17 of the supporting structure and this bracket is provided with an oifstanding lug 43 screw threadably engageable by a bolt 44 which in turn engages a lug 45 secured to the member 17.

It will therefore be seen that rotation of the bolt 44 will move the pivot assembly in the direction of double headed arrow 46 thus adjusting, within limits, the parallel relationship of the conical faces 39' at the point of contact 40. This is so that the line of contact may remain parallel irrespective of any wear occuring to the conical faces during use.

Means are also provided to adjust the relationship between the interfactial line of contact of the two discs and in this connection a bolt 47 extend across the supporting framework members 14 and through the spacer 16. This bolt is provided with a retainer 48 which bears against one of the members 14 and the end 49 of the bolt passes through the end 50 of the member 31. Nuts 51 upon either side of the end 50 permit the member 31 to be adjusted around the pivot assembly 33 within limits thus adjusting the interfacial contact pressure between the two conical rollers.

Means are also provided to permit the passage of a relatively hard object such as a stone without damaging the disc faces 39 and in this connection the other end 52 of the bolt 47 is provided with nut 53 and saddle washer 54. The bolt passes through a resilient assembly such as leaf springs 55 which span the edges of the flanges 56 of the side member 14 as clearly shown in FIGURE 2. By adjusting the nut 53 upon the end 52 of the bolt 47 the spring tension is adjusted of the idling cone roller mounted upon member 31 so that normally the discs will not separate unless a stone or similar hard object passes therebetween, under which circumstances, of course, bolt 47 may move against pressure of resilient assembly 55.

Finally a shroud or similar means 57 extends from the side 58 of the hopper to adjacent the apices 38 of the rollers, the side edges 59 of the shroud just clearing the sloping surfaces so that the roller faces 39' thus directing the grain from the hopper to the line of contact 40.

In operation, the drive roller is rotated by the source of power in the direction of arrow 60 and, under normal circumstances, the two conical rollers are in contact one with the other, so that drive is transmitted to the idling conical roller.

Grain is fed from the hopper to the relatively sharp angled entry formed by the cone faces 39' and is crushed at the line of contact 40 as it passes between the rollers.

Due to the aforementioned sharp angle between the conical faces, there is no tendency for the grain to slip and not pass the line of contact and, depending upon the pressure between the two rollers at the line of contact,

the amount of crushing of the grain may be controlled within limits.

If relatively large grain is to be cracked or conditioned, then the rollers may be parted slightly under which circumstances the friction of the grain passing through the rollers at the line of contact transmits power from one roller to the other.

FIGURES 5 and 6 show the preferred embodiment of the device which increases the capacity of the device considerably.

The two rollers 29 are separated slightly so that the line of contact 40 becomes a line of potential contact.

A pair of arms 61 are mounted upon a bracket 62 which in turn is mounted to the cross member 17 of the supporting framework and these brackets converge at the ends 63 thereof, said ends being located adjacent the apices 38 of the rollers 29 and support for rotation therebetween a disc 64.

This disc is rotatable vertically between the ends 63 of the arms 61 and the diameter of the disc is similar or is slightly larger than the diameter of the rollers 29.

This ensures that a portion of the disc between the center thereof and the perimeter 65 is engaged upon either side thereof along the potential line of contact 40 of the two rollers 29.

The pressure of the rollers against the disc causes same to rotate when the rollers are rotated so that the grain is crushed between the conical face 39' of each disc and each surface 66 of the disc 64.

The bracket 62 is mounted upon the member 17 through lugs 66' and a screw threaded adjustment bolt 67 passing through the lugs permits limited horizontal adjustment of the arms 61 and hence the disc 64 with relation to the rollers 29.

The position of this disc practically doubles the capacity of the device as there are now four crushing surfaces rather than two as heretobefore described.

Since various modifications can be made to the invention herein described within the scope of the inventive concept disclosed, it is note intended that protection of the said invention should be interpreted as restricted to the modification or modifications or known parts of such concept as have been particularly described, defined, or exemplified, since this disclosure is intended to explain the construction and operation of such concept, and not for the purpose of limiting protection to any specific embodiment or details thereof.

What I claim as my invention is:

1. A conical grain roller comprising in combination a supporting framework, an enclosure supported by said framework, grain feeding means mounted on the upper end of said enclosure and communicating therewith, grain discharge means on the base of said enclosure and communicating therewith, and a pair of right conical rollers within said enclosure and journalled for rotation in said framework, the vertices of said conical rollers being adjacent one another, the axes of said conical rollers being angulated one from the other whereby said conical rollers are substantially in interfacial relationship along a line of potential contact therebetween, extending between said vertices and the circumferential edges of the bases of said conical rollers, at least one of said conical rollers being driven and means to adjust the said interfacial relationship between said conical rollers, said means to adjust the interfacial relationship between said conical rollers including a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits.

2. The device according to claim 1 which includes adjustable resilient mounting means for at least one of said conical rollers adapted to maintain said one conical roller in position with relation to the other of said conical rollers up to a predetermined interfacial pressure.

3. The device according to claim 1 which includes means to adjust the parallelism of the said interfacial contact.

4. The device according to claim 2 which includes means to adjust the parallelism of the said interfacial contact.

5. The device according to claim 2 in which said adjustable resilient mounting means for said conical roller includes a member pivotally secured by one end thereof to said supporting framework, said conical roller being journalled for rotation within saim member, an adjustable spring loaded mounting means for the other end of said member mounting same to said framework.

6. The devices according to claim 3 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, said pivotal means being mounted for adjustment within limits to said framework.

7. The device according to claim 3 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation with said member, and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits, said one end of said member being mounted for limited adjustment to said framework.

8. A conical grain roller comprising in combination a supporting framework, an enclosure supported by said framework, grain feeding means mounted on the upper end of said enclosure and communicating therewith, grain discharge means on the base of said enclosure and communicating therewith, and 'a pair of right conical rollers within said enclosure and journalled for rotation in said framework, the vertices of said conical rollers being adjacent one another, the axes of said conical rollers being angulated one from the other whereby said conical rollers are substantially in interfacial relationship along a line of potential contact therebetween, extending between said vertices and the circumferential edges of the bases of said conical rollers, at least one of said conical rollers being driven, and a disc rotatable vertically between said conical rollers, means extending from said supporting framework to mount said disc for rotation, the axis of said disc being adjacent the apices of said rollers, a portion of said disc between the center and the perimeter thereof lying between said rollers at said line of potentoial contact thereof.

9. The device according to claim 8 which includes means to adjust the horizontal position of said disc, within limits, relative to said rollers.

10. The device according to claim 8 which includes means to adjust the interfacial contact pressure between said conical rollers.

11. The device according to claim 8 which includes adjustable resilient mounting means for at least one of said conical rollers adapted to maintain said one conical roller in position with relation to the other of said conical rollers up to the predetermined interfacial pressure.

12. The device according to claim 8 which includes means to adjust the parallelism of the said interfacial contact.

13. The device according to claim 10 which includ es adjustable resilient mounting means for at least one of said conical rollers adapted to maintain said one conical roller in position with relation to the other of said conical rollers up to a predetermined interfacial pressure.

14. The device according to claim 10 which includes means to adjust the parallelism of the said interfacial contact.

15. The device according to claim 11 which includes means to adjust the parallelism of the said interfacial contact.

16. The device according to claim 10 in which said means to adjust the interfacial contact pressure between said conical rollers includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits.

17. The device according to claim 13 in which said means to adjust the interfacial contact pressure between said conical rollers includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits.

18. The device according to claim 14 in which said means to adjust the interfacial contact pressure between said conical rollers includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member and adjustment means coacting between the other end of said member and said framework for pivotally setting staid member within limits.

19. The device according to claim .11 in which said adjustable resilient mounting means for said conical roller includes a member pivotally secured by one end thereof to said supporting framework, said conical roller being journalled for rotation within said member, an adjustable spring loaded mounting means for the other end of said member mounting same to said framework.

20. The device according to claim 13 in which said adjustable resilient mounting means for said conical roller includes a member pivotally secured by one end thereof to said supporting framework, said conical roller being journalled for rotation within said member, an adjustable spring loaded mounting means for the other end of said member mounting same to said framework.

21. The device according to claim 14 in which said adjustable resilient mounting means for said conical roller includes a member pivotally secured by one end thereof to said supporting framework, said conical roller being journalled for rotation within said member, an adjustable spring loaded mounting means for the other end of said member mounting same to said framework.

22. The device according to claim 12 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, said pivotal means being mounted for adjustment within limits to said framework.

23. The device according to claim 14 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, said pivotal means being mounted for adjustment within limits to said framework.

24. The device according to claim 15 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, said pivotal means being mounted for adjustment within limits to said frame- Work.

25. The device according to claim 12 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits, said one end of said member being mounted for limited adjustment to said framework.

26. The device according to claim 14 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits, said one end of said member being mounted for limited adjustment to said framework.

27. The device according to claim 15 which includes a member pivotally secured by one end thereof to said supporting framework, one of said conical rollers being journalled for rotation within said member, and adjustment means coacting between the other end of said member and said framework for pivotally setting said member within limits, said one end of said member being mounted for limited adjustment to said framework.

8 References Cited UNITED STATES PATENTS 52,363 1/1866 Kellogg 241-252 2,083,462 6/1937 Long 241-252 FOREIGN PATENTS 139,919 10/1960 U.S.S.R. 268,492 10/ 1929 Italy. 408,106 5/1933 Great Britain.

ROBERT C. RIORDON, Primary Examiner D, G. KELLY, Assistant Examiner US. Cl. X.R.