DE395792C - Automatic scales for threshing machines - Google Patents

Description

Automatic scales for threshing machines. The subject of the present Invention forms an automatic scale for threshing machines: This is intended to Grain flowing out of the discharge openings on threshing machines according to type to weigh separately, being both by uniting the balance with a counter the control of the daily threshed quantity as well as a registration of the During the whole threshing, the grain can be separated according to type is.

The compact design allows the scale to be attached to any finished product Threshing machine without making any significant changes to it are. For this purpose, the drainage channels and those connected to it are now To remove the bag holder and to place the scales in their place, whereby the Switching on the elastic intermediate link (leather harmonica) the fastening any threshing machine, regardless of whether the discharge chute is vertical or inclined is easily feasible. The union of the counter with an acoustic one and optical signals indicating each bag full allow a reduction of the operating personnel, since the machinist himself is called in to change the bags without having to watch the sacks being filled up.

An exemplary embodiment is shown in the figures. In fig. i and 2 means a the fixed box, which by the interposition of the elastic Intermediate piece s (leather harmonica) with the outlet openings establishes the connection, at which the outflowing threshed material is to be weighed. Threshing machines with Get three or five grain outlets if all varieties are weighed should, three or five such apparatus in common suspension, with which the Boxes a through whose sprues t (Fig. I and 2) are screwed.

The movable box b (fig. I and 2) is in the fixed box a is guided by four steel rollers c and is fixed by the two in the box a clamped support arms v and the two hangers g., with the lever system in connection.

The steel rollers c rotate on the axes d, which by square are stored in the slots of the housing e secured against rotation, but after Ventilation of the latch f holding the housing e and after pulling out the housing e from the fixed box a with the rollers c guided by the two Housing slots can be removed from the housing e.

This makes it easy to change the rollers and clean them and the roller housing during the threshing without any operational disturbance.

The lever system with the two double-armed balance beams g1 (Fig. I) is symmetrical. The two weight lever arms each carry a counterweight il, additional weights i2 and an adjusting screw 1a, through which the length of the weight arms can be regulated. The frame-like intermediate pieces g3 (Fig The window-like abutments "" for the weight levers g2 are fastened to the stationary box a with 2 screws each The counter includes the .lufgangsrad p, which with the gear 1i sitting on the same shaft in the two bearings in, (Fig. 2), which are united with the sprue ^ of the Ka, tens ra to a rigid system , is rotatably mounted, and the transmission gears h, 13 and 14, of which 1, and 1, loosely attached to a common shaft mounted in the bracket m2 (Fig. i and 2) mounted on the box are rdnet. The transmission wheel l4 also sits loosely on the shaft mounted in the bracket m3 (Fig. I).

The numbers o, 2, q are on the winding wheel j at the distance of the tooth pitch. . . So attached (not shown in Fig. I), of which, depending on the position of the winding wheel, one of the digits in the middle window y1 of the three indicated windows y ", y1 and y3 in the one surrounding the entire counter and the lever system; not shown) Likewise, the wheels 1; and 1.1 bear the digits o, i, 2 ... g or o, io, 2o ... 9o, vcn which, depending on the position of the wheels, have a number at the indicated cladding window y2 y3 vol on the outside From the pawls kl and k2 (Fig. x), k1 is attached to the balance beam g1 and takes care of the lifting wheel j and thus the starting of the counter and the Winding of the bell spring i, while k2 holds the winding wheel j in place when the pawl k1 descends.

The bell w serving as an acoustic and optical signal (Fig. I) sits on the same shaft as the winding wheel j and is shown in Fig. 3, q. and 5 incoming treated.

The winding wheel i is connected to the shaft 2 by a square (Fig.q.), those in the two bearings in, (Fig. 2) and in the one with box a (Fig. i and 2) rigidly connected bell bottom 13 (Fig. q. And 5) is rotatably mounted, firmly connected. The spring housing 6 is seated rotatably on the winding shaft a (Fig. 4. and 5). The ratchet wheel 14 (Fig. 3 to 5) and is firmly connected to the winding shaft 2 one end of the bell spring i. The shaft 2 still has a bearing in the shaft 5 (Fig. Q.), Which carries the bell shell 7 and is rotatably mounted in the cross member 15 is. The shaft 5 is firmly connected to the gear 3 by a square. on the other hand form the gear 3, the spring housing 6 and the second attached to the spring housing The end of the bell spring is a rigid system. The gear 3 meshes with the gear ¢ (Fig. Q.), The axis of which is rotatably mounted in the bell base 13 and in the cross member 15 is and carries the centrifugal pendulum 12 on a square in a loose arrangement. By on the axis of the gear q. fixed brake disc 8 and the brake hook g (Fig. 3 and q.) is the wheel system 3, q. and thus the one screwed to gear 3 Spring housing 6, the shaft 5 and the bell shell 7 and the centrifugal pendulum 12 locked. The turning back of the winding shaft 2 by the tensioned, on the spring housing 6 held in place by the ratchet wheel 14 and the corresponding pawl 2o (Fig. 3 and q.) And prevented by the pawl k2 (Fig. R). During operation if only the handle would be k. necessary, whereas the locking system 1q., 20 is necessary, in order to bring the bell spring into the necessary preload during assembly and to keep in the same.

The adjustable and pull-out stop p is on the winding wheel i (Fig. 3, 4., 5) attached to the thumb with each turn of the winding wheel j ii pushes, whereby the brake shoe firmly connected to the stub axle of the thumb ix g lifted off the '- brake disc 8 and thereby the acoustic and optical signal is triggered by on the one hand the Zentrifugalpendcl 12 comes into action and on the other hand via the wheel system 3; q. and the wave 5, which with a striking Brand provided bell shell 7 is set in rotation. The respective expiring Bell bowl shows the operator which of the different Apparatus on the threshing machine can be operated instantly.

The adjustable and extendable stop (Fig. 3 and 4) allows Adjustability of the duration of the signaling time on the one hand and the beginning of the Signaling, on the other hand, so that the signal is still slightly before it is completely filled one sack and the necessary sack change takes place.

It is also essential for the bell device that by the attachment the bell spring i on the winding shaft 2 on the one hand and the spring housing 6 on the other hand with locked shaft 2 and released brake shoes g the direction of flow of the shell 7 and the wheel system 3, q. is identical to their sense of lift, so that with any Coincidence of the winding and expiration times does not inhibit the bell's expiration and "so that the no: -necessary signal cannot be prevented.

With the independent locking device of the bottom flaps of the movable Box b (Fig. I and 2) the two bottom flaps n are eccentric by two each arranged pin rotatably supported in the movable box b.

The two stops o are interconnected by the roof-like plate p tied together. One stop o each holds two sprues belonging to different flaps 8 together and thereby the flaps closed.

When the box b sinks and the stop o is pushed up on the lower edge the recess u2, the hat o is lifted from the sprues 8 and thus opened the flaps iz one. By sitting the upper edge of the recess icl on the Locking hat o the lower limit position of the movable box b is set.

The two stops x (Fig. I and 2) are in the movable box b and are used to limit the opening of the flap.

The mode of operation of the bag holder can be seen in Figs. 1 and 2.

The grain poured out by the threshing machine falls through the elastic. Intermediate piece s (leather harmonica) in the movable box b, which goes up to remains in the top position for an accumulated amount of 2 kg of grain.

The exact setting to 2 kg is made using the two additional weights i2 and the Adjusting screws h. With 2 kg of accrued threshed material the state of equilibrium disturbed. The box b is lowered by a total of about 6 mm. After a 3 mm countersink, the ones resting on the lower edge of the recess u Stops o to seat on the lower edge of the recess u2 of the outer box, while the inner box b sinks another 3 mm. Here-the attacks are o of lifted off the flaps and thereby exposed them. After lowering by 6 mm get the stops also to the seat on the upper edge of the recess u1, whereby the lower limit position of the movable box b is reached.

After lifting the stops o, the eccentrically mounted ones are opened Flaps due to the larger grain pressure in the middle of the box b.

After emptying, the box b and with it the stops o and the flaps n (which are thrown back again after emptying and are again blocked by the stops o) are raised again to the upper limit position under the influence of the counterweights i1 and i2. Here, the pawl k1 (Fig. I) sitting on the balance beam g, adjusts the winding wheel y and thus the bell spring i by an angle of approximately g °. The reverse rotation of the winding wheel y and the bell spring i is prevented by the pawls k2 (Fig. I) and 2o (Fig. 3). After 40 flap falls (80 kg per bag), the winding wheel y is rotated 360 ' and thus the bell spring i is fully tensioned. At the same time, the adjustable stop P on the winding wheel j and the thumb ii (Fig. 3, q. And 5) trigger the bell signal. The bell spring i is fastened on the one hand to the winding shaft 2 and on the other hand to the spring housing 6 connected to the bell shell by the gear 3 and shaft 5. The locking of the gears 3, q. and the shell 7 takes place through the brake disk 8 and the jaw 9 pressed on by the spring io.

The bell is triggered by the stop p on the gearwheel j and the stop i i on the brake shoe lever. The swing weights 12 step here in action, with the bell running down at the same time. (The branded, If the bell shell is set in rotation, it also serves as an optical signal.) Here if the direction of movement of the bell shell and the direction of winding of the bell spring are identical, see above that, as already mentioned, an inhibition of the rotating shell by the elevator movement cannot occur.

That the digits 2, q. . . . 8 0 carrying elevator wheel y shows the threshed kilograms in window y in the casing. The transmission wheel 1z shows one sack each in window y2, the transmission wheel 1, with window y3 each io sacks. Thus, in the version shown, one device (with a dispensing opening) can register iii sacks, in an embodiment with three ratios of i: io each, iiii sacks could be registered per outlet opening.

Incidentally, it should be noted that after the end of the threshing, the counter can be brought to the zero position at any time by means of a locked crank to the square shaft extension of the gear wheel 1 (Fig. I).

All adjustable and moving parts of the apparatus are under Cladding, the removal or opening of the window in the cladding by means of seals is held back. (Not shown in the figures for the sake of clarity.) The self-locking bag holder combined with the apparatus allows through Control of the release lever r the release of the full bag.

Claims (2)

PATENT CLAIMS: i. Automatic scales for threshing machines, in which the individual weighings are registered, characterized in that by means of eccentrically mounted flaps (n) and appropriate arrangement of stops (o), individual weighings are carried out automatically. 2. Automatic scales with counter for each one Weighing and signaling device, characterized in that the triggering of the signaling device after a certain number of individual weighings by one to limit the signaling time adjustable stop on the counter takes place in such a way that the Bell shell with a striking mark is also an optical one The signal acts and the re-tensioning of the is automatically activated after each individual weighing Bell drive spring (i) causes.