US2639714A

US2639714A - Counterbeating device for threshing machines

Info

Publication number: US2639714A
Application number: US232375A
Authority: US
Inventors: Moullec Jean
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-06-30
Filing date: 1951-06-19
Publication date: 1953-05-26
Anticipated expiration: 1970-05-26

Description

J. MOULLEC May 26, 1953 COUNTERBEATING DEVICE FOR THRESHING MACHINES 2 Sheets-Sheet 1 Filed June 19 1951 JIM eh For: J' AN A40ULEC May 26, 1953 J. MOULLEC 2,639,714

COUNTERBEATING DEVICE FOR THRESHING MACHINES Filed June 19, 1951 2 Sheets-Sheet 2 3% van h r:

TEAM WI AHOY/H y Patented May 26, 1953 2,639,714 OFFICE COUNTERBEATING DEVICE FOR THRESHING MACHINES Jean Moullec, Penhars pres Quimper, France Application June 19, 1951, Serial No. 232,375 In France June 30, 1950 14 Claims. .1

The invention relates to a counter-beater for threshing-machines for cereals and similar matters.

The counter-beater comprises essentially one or more counter-beating members mounted on a suitable frame, each of the counter-beating members having the shape of a cylindrical roller provided at each end with a trunnion and on its periphery with mutually spaced projections the tops of which are flush with a virtual cylindrical envelope, the three axes of said roller, of said trunnions and of said envelope being distinct and eccentric with respect to each other.

The projections of each counter-beating member are thus eccentric with respect to the axis of the roller, so that they stand out high on one side of the roller and their height decreases progressively towards the other side.

The adjustment of the position of each counter-beatin member with respect to the threshing-cylinder may be effected by means of a key,

in combination with an arresting ratchet keyed on one of the trunnions of each counter-beating member and locked against rotation in one direction by a pawl.

Due to the three-fold eccentricity of the three axes of the parts of each counter-beating memher, it is possible to vary at will, on the one hand, the distance between the counter-beating membar and the threshing-cylinder and, on the other hand, the depth of the intervals between the projections on that portion of the counter-beating member which faces exactly the threshingcylinder.

In a. preferred embodiment, the projections on the counter-beating member are helical ribs formed for example like a screw-threading including one or more continuous threads. These ribs being eccentric with respect to the axis of the roller, they stand out high on one side of the roller and retract progressively towards the other side, where they may be flush with the surface of the roller. The helical ribs may be shaped like right-handed threads on one counterbeating member of each pair and like left-handed threads on the other.

The counter-beater provided with the improved counter-beating members according to the invention has mainly the following advantages:

The counter-beating members are simple and easy to manufacture. It is no more necessary to displace the whole counter-beater for adjustment purposes, which was heretofore the generally used method for adjusting the distance between the counter-beating elements and the threshing-cylinder, according to the kinds of cereals to be threshed. All auxiliary members such as slides, eccentrics, racks, adjusting screws, links, etc, which were heretofore used for adjusting the counter-beater or its members, are

dispensed with. The variable height of the pro-.

jections which is due to their eccentricity with are co-axial with each other.

respect to the roller of the counter-beating member, makes it possible to obtain a rational threading out, in accordance with the shape and thickness of the ears.

Four embodiments of the invention are represented by way of example on the appended drawings.

Fig. 1 is a front view of a counter-beater with four counter-beating members.

Fig. 2 is a vertical section on line 1I--II of Fig. 1.

Fig. 3 is a vertical section on line III-III of Fig. 1.

Fig. 4 is a schematical cross section at a larger scale of a counter-beating member and shows also the portion of the threshing-cylinder facing the counter-beating member.

Fig. 5 is an end View of a counter-beating member.

Fig. 6 is a. side view of the key for adjusting the counter-beating members.

Fig. 7 shows at a larger scale the indicating disk wedged on the key.

Figs. 8 and 9 are an end view and a partial elevation of a second embodiment of a counterbeating member.

Figs. 10 and 11 are an end view and a partial elevation of a third embodiment of a counterbeating member.

Figs. 12 and 13 are an end view and a partial elevation of a fourth embodiment of a counterbeating member.

On the drawings, the ribs of the counter-beating members are shown larger than they are in reality, for the sake of clearness of the drawing.

The counter-beater has a frame formed by horizontal members I and vertical members I2 and mounted on the body of the threshing-machine by four brackets 2|. On this frame are mounted one or more pairs of counter-beating members 2. Fig. 1 shows two pairs of counter- .beating members, but the number of pairs is variable. Each counter-beating member 2 comprises a cylindrical roller of cast steel which is preferably hollow and is provided at each end with a trunnion 3 and 3' respectively. The trunnions 3 and 3' of each counter-beating member On its periphery, the counter-beating member carries helical ribs 4 which are formed, for example, by three continuous screw threads. These ribs 4 are righthanded threads on one counter-beating member of each pair of left-handed threads on the other. Thus, in Fig. l, the ribs of the first and third counter-beating member counted from the top are right-handed threads, and the ribs of the second and fourth counter-beating memberv are left-handed threads.

The essential feature of the counter-beating member 2 resides in the fact that the axis 5 of its roller-shaped body is eccentric with respect to v the axisB of the

trunnions

3, 3, and that the axis 3 1 of the virtual cylindrical envelope E of the ribs 4 is eccentric with respect to both axes 5 and 5, so that the ribs 4 stand out high on one side, at A (Fig. 4) over the roller 2, while their height decreases progressively towards the opposite side, where they are flush with the roller 2. y

A threshing-cylinder 8 being mounted in front of a counter-beating member 2, it is possible to vary, on the one hand, the distance between the heaters 9 on the cylinder 8 and the periphery A of the ribs 4 of the roller 2 and, on the other hand, the depth A--C of the groove formed between the ribs l on the side of the counter-beating member which faces the heaters s. This variation is obtained by rotating the roller -2 about the axis '6 of the trunnions 3, 3' which is eccentric with respect to the axis 5 of the roller 2 as well as with respect to the axis 1 or the ribs 4.

By giving a complete turn to the counterbeating member, it is thus possible to obtain an infinity of adjustments with respect to the threshing-cylinder, on the one hand as regards the depth of the groove between the ribs c, and on the other hand as regards the clearance between the heaters -9 and the outer periphery A of the ribs 4. By efiecting the rotation degree by degree, it would thus be possible to obtain 360 adjustments, each different of all others.

Such a fine adjustment is of course not made in practice and the counter-beating members are mounted so as to be adjustable in a certain number of positions, for example twelve, by means of an arresting ratchet l0 -keyed on the trunnion 3 of each counter-beating member and-cooperating with a pawl H mounted for example on the inner side of the vertical frame member 12, this pawl engaging the ratchet 10 under the action of a spring (not shown) so as to lock it against rotation in one direction. A key 13 serves to turn the counter-beating members as desired. This key (Fig. 6) comprises a handle I4 and a rod 15 whose end [6 has a non-circular cross section corresponding to the cross section of a hole 11 formed in the end of -the trunnion 3 (Fig. 5). On the rod I5 is wedged'an-indicating disk It (Fig. '7) provided on its periphery with twelve teeth 49, in case the roller '2 is adjustable in twelve positions. Each tooth l-9 carries a numeral from 1 to '12 andthe disk 18 is shaped so to represent in relief the cross section of the counter-beating member 2 and of its ribs 4, whereby the position of each counter-beating member is rendered visible from the outside of the "machine. Instead of wedging an indicating disk IS on the rodof thekey, such a disk could be mounted on the trunnion 301" 3' of each counter-beating member.

By inserting the end N5 of the key It into the hole H of the trunnion 3, it is possible to turn the latter so as to adjust the counter-beating member 2 in the desired position with respect to the heaters 9 of the threshing-cylinder 8, so as to obtain,-on the one hand, the desired clearance between the the heaters 9 and the periphery of the rib 4 and, on the other hand, the desired depth A-C of the groove between the ribs. This clearance and this depth are determined according to the nature of the cereals to be threshed, which are fed into the device in the direction of the arrow F, while the threshing cylinder '8 r0- tates in the direction of the arrow G. The adjustment of the counter-beating member "2 is effected in the direction of thearrow Each counter-beating member 2 may further comprise one .or:more narrow journals 20 which 4 are concentric with the itrunnions "3, 3" and are supported by bearing surfaces formed on a member 22 mounted in the frame I, I2. The number of these journals depends on the length of the counter-beating member.

Various modifications can be made in the described and shown embodiment without departing from the scope of the invention. These modifications may affect the nature, number and shape of the parts of the mechanism, the degree of eccentricity of the elements of each counterbeating member, the connection between the various parts of the device, etc.

In particular, the shape of the projections on the counter-beating members as described with reference to Figs. 1 to 5 is not limitative. Thus, the'helical ribs on the periphery of the counterbeating members may be of polygonalshape, or they may be of right-handed and left-handed inclination and form bosses at their crossing. The projections on the body of the counter-beating member may also be, for example, longitudinal ribs 23a to 23-h (Figs. '8 and 9), or transversal spaced disks 24 (Figs. 10 and 11)., orspaced knob-shaped projections 25a to 257' (Figs. 112 .and 13) In any case, the tops of the projections are flush with a virtual cylindrical envelope E the axis 1 of which is eccentric with respect to the axis 5 of :the counter-beating member body .2 and the axis 6 of the trunnions 3, .3

Finally, instead of being mounted on a special frame, the counter beating members could be supported directly by the body of the threshingmachine.

I claim:

1. A counter-beating member for threshing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions be ing co-axia'l with each other, and mutuallyspaced projections on the periphery of said body, the tops of said projections being -flush with a virtual cylindrical envelope, the three axes of said body, of said trunnions and of said envelope being distinct and eccentric with respect to each other, so that said projections stand out high on one side over the 1 surface of :said body and the height of said projections progressively decreases towards theopposite side of said body.

2. A counter-beating member for threshing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions "being co-axial with each other, mutually spaced projections on the periphery of said body, the tops of said projections being flush with a virtual cylindrical envelope, the three axes of said body, of said trunnions 'andof said envelope being "distinct and eccentric with respect to each other, so that said projections stand out high on one side over the surface of said body and the height "of said projections progressively decreases towards the opposite side of said body, and at least "one journal intermediate the ends of said 'body and concentric with said trunnio-n's.

'3. A counter-beating member for threshing machines, comprising a cylindrical body, a-trunnion at each end of said trunnions being co-axial with each other,-and at least one helical rib on the'periphery'of said bodyythe three axes of said body, of said trunnions and of said helical 'rib being distinct and eccentric with respect 'to each other, so that said rib stands out highon one side over the surfaceof said-body'a-nd the height of said rib progressively decreases towards the opposite side-dfsaid body.

4. A counter-beating "member for 'ithre'shing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions being co-axial with each other, and at least one helical rib on the periphery of said body, the three axes of said body, of said trunnions and of said helical rib being distinct and eccentric with respect to each other, so that said rib stands out high on one side over the surface of said body and the height of said rib progressively de-- creases towards the opposite side of said body, where said rib is flush with the surface of said body.

5. A counter-beating member of threshing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions being co-axial with each other, and helical ribs on the periphery of said body, said helical ribs being formed by at least one continuous screw thread, and the three axes of said body, of said trunnions and of said helical ribs being distinct and eccentric with respect to each other, so that said ribs stand out high on one side over the surface of said body and the height of said ribs progressively decreases towards the opposite side of said body.

6. A counter-beating member for threshing machines, comprising a cylindrical body, a. trunnion at each end of said body, said trunnions being co-axial with each other, and helical ribs on the periphery of said body, said helical ribs being formed by three continuous screw threads, and the three axes of said body, of said trunnions and of said helical ribs being distinct and eccentric with respect to each other, so that said ribs stand out high on one side over the surface of said body and the height of said ribs progressively decreases towards the opposite side of said body.

7. A counter-beating member for threshing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions be ing co-axial with each other, at least one helical rib on the periphery of said body, the three axes of said body, of said trunnions and of said helical rib being distinct and eccentric with respect to each other, so that said rib stands out high on one side over the surface of said body and the height of said rib progressively decreases towards the opposite side of said body, and at least one journal intermediate the ends of said body and concentric with said trunnions.

8. A counter-beating member for threshing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions being co-axial with each other, and mutually spaced longitudinal ribs on the periphery of said body, the tops of said ribs being flush with a virtual cylindrical envelope, the three axes of said body, of said trunnions and of said envelope being distinct and eccentric with respect to each other, so that said ribs stand out high on one side over the surface of said body and the height of said ribs progressively decreases towards the opposite side of said body.

9. A counter-beating member for threshing machines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions being co-axial with each other, and mutually spaced transversal disk-shaped projections on .the periphery of said body, the outer edges of said projections being flush with a virtual cylindrical envelope, the three axes of said body, of said trunnions and of said envelope being distinct and eccentric with respect to each other, so that said projections stand out high on one side over the surface of said body and the height of said projections progressively decreases towards the opposite side of said body.

10. A counter-beating member for threshingmachines, comprising a cylindrical body, a trunnion at each end of said body, said trunnions being co-axial with each other, and mutually spaced knob-shaped projections on the periphery of said body, the tops of said projections being flush with a virtual cylindrical envelope, the three axes of said body, of said trunnions and of said envelope being distinct and eccentric with respect to each other, so that said projections stand out high on one side over the surface of said body and the height of said projections progressively decreases towards the opposite side of said body.

11. A counter-beater for threshing machine, comprising a frame, counter-beating members as claimed in claim 1, bearing means on said frame for rotatably supporting said trunnions of the counter-beating members, and means for arresting each of said counter-beating members in a plurality of setting positions.

12. A counter-beater for threshing machines, comprising a frame, counter-beating members as claimed in claim 2, bearing means on said frame for rotatably supporting said trunnions of the counter-beating members, other bearing means on said frame for rotatably supporting said journals of the counter-beating members, and means for arresting each of said counter-beating members in a plurality of setting positions.

13. A counter-beater for threshing machines, comprising a frame, at least one pair of counterbeating members as claimed in claim 3, said helical rib being formed by right-handed threads on one counter-beating member of each pair and by left-handed threads on the other counter-beating member of each pair, bearing means on said frame for rotatably supporting said trunnions of the counter-beating members, and means for arresting each of said counter-beating members in a plurality of setting positions.

14. A counter-beater for threshing machines, comprising a frame, at least one pair of counterbeating members as claimed in claim '7, said helical rib being formed by right-handed threads on one counter-beating member of each pair and by left-handed threads on the other counter-beating member of each pair, bearing means on said frame for rotatably supporting said trunnions of the counter-beating members, other bearing means on said frame for rotatably supporting said journals of the counter-beating members, and means for arresting each of said counterbeating members in a plurality of setting positions.

JEAN MOULLEC.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date No number Mans Feb. 5, 1836 210,927 Durand Dec. 17, 1878 589,782 Janney Sept. 7, 1897 FOREIGN PATENTS Number Country Date 44,842 Germany Oct. 1, 1888 125,569 Germany Nov. 23, 1901 153,593 Germany July 22, 1904 852,774 France Mar. 2, 1940 707,581 Germany June 28, 1941