KR101533118B1 - Combine - Google Patents

Abstract

A combine worm conveyor apparatus according to the present invention comprises a transfer channel (22) and a rotatable worm (23) extending within the transfer channel (22). The surfaces 26, 32 and 33 of the worm 23 form a wedge-shaped interspace 27 which widens in the direction of transport of the worm 23 together with the wall 25 of the transport channel 22 .

Description

Combine {COMBINE}

The present invention relates to a combine with a worm conveyor device.

US 7 207 882 B2 discloses a worm conveyor device, a conveyor worm, and a worm conveyor device for returning rice husk material, which has passed through a grain separator without being separated into an algae component and a non-algae component in a grain separator, Combiners are known which include troughs surrounding a conveyor worm over a portion of its circumference and which impart a threshing action to the rice husk material by patterning at the inner surface of the trough and by increased friction at the inner surface of the trough. As such, when the rice husk material contained in the rice husk material is separated from the non-beaten soup ingredient when the rice husk material is sent back to the grain separator, the grain and non-grain components can be effectively separated from each other when passing through the grain separator.

However, in such a combine, when the gap between the outer edge of the spiral of the conveyor worm and the inner surface of the trough is narrow, the grains may be damaged during transportation by the worm conveyor apparatus. On the other hand, if the clearance between the helix and the trough is too wide, the threshing action is reduced and the recesses in the surface pattern of the trough are filled with the unclean or finely crushed non-grain material and are no longer transported, There is a risk of losing.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a combine worm conveyor apparatus which realizes a reliable hoisting operation while carefully handling a grain.

The present invention relates to a worm conveyor apparatus having a transfer channel and a rotatable worm extending in the transfer channel, the worm conveyor apparatus comprising a wedge-shaped (wedge-shaped) wedge- wedge-shaped interspace. As a result of the formation of the wedge, when the material to be transported in the channel reaches the interstitial space between the surface of the threshing action and the wall of the transport channel, it is gradually enlarged and opened by the movement of the worm, By the mutual friction of the particles of the grains are separated from the pieces of scraps or their pods.

Preferably, the threshing surface has an acute angled edge facing the wall of the transport channel. Such acute angles increase the friction of the material and allow it to loosely loosen the material again after passing through the wedge-shaped space and the acute edge, which also contributes to the threshing action.

In particular, the threshing surface can form the outer edge of the spiral of the worm.

Alternatively, or additionally, the threshing surface may be disposed in the interstitial space between two adjacent pitches of the spiral of the worm.

The latter hulling surface is preferably supported on the surface of the spiral that applies a shear force to the material being conveyed for its mechanical stabilization.

It is also preferred that such a hindcasting surface is formed by the radially outer region of the blade projecting from the center spindle of the worm. Such blades apply a stirring action to the material being transported in the channel during operation, so that the material, which is temporarily located near the spindle and which is not subjected to the subsequent treading action, reaches near the wall of the transport channel and passes through the wedge- While the material that has already passed through the interstitial space is no longer thawed by reaching the spindle more closely.

In addition, the threshing surface may be part of a tube section secured to the center spindle of the worm.

It is preferred that such tube sections are formed with slits in the longitudinal direction, where the edges of the slits also form the edges of the threshing surface, facing the walls of the transport channels at the same time. That is, first the material, which is superimposed in the intervening space between the tube section and the wall of the transport channel, is unexpectedly loosened after passing the edge, which contributes to the threshing action as described above.

According to another configuration, the threshing surface protrudes substantially tangentially from the center spindle of the worm.

In the two configurations described above, it is preferable that the hoisting surface is aligned at an angle to the rotational axis of the worm in order to simultaneously apply a shearing force to the material in the transfer channel in the longitudinal direction of the channel.

The edge of the threshing surface, facing the wall of the transfer channel, enhances the threshing effect on the one hand and, on the other hand, to facilitate the passage of foreign substances, which can not be thrusted, between the surface of the threshing action and the wall of the transfer channel And may be formed in a serrated shape.

Preferably, the worm conveyor apparatus is provided with a plurality of hinged surfaces that are not connected to each other. On the other hand, in particular, at the ends of the hoisting surfaces, the material tends to displace the pressure of the hulling surface not only radially outward but also in the longitudinal direction of the channel by movement, Can be obtained. On the other hand, the strong mutual friction of the particles of the material (which also contributes to the threshing action) can be obtained by not having a threshing surface, in which a certain portion of the worm has no spiral and pushes the material in the longitudinal direction of the channel Which is because the material is strongly consolidated in the part of such a worm.

A further improvement in the threshing action can be achieved if the walls of the transport channel become uneven.

In the combine according to the present invention, the wobbling surface of the worm forms a wedge-shaped interspace with the wall of the transfer channel so as to expand in the transfer direction of the worm, The grain of the grain which has been agglomerated by the movement of the worm when it has reached the interstitial space between the surface of the transfer channel and the wall of the transfer channel and which has been agglomerated by the mutual friction of the particles of the material being conveyed, It is detached from the pods. Therefore, a precise threshing action can be realized while handling the grain carefully. Particularly, at the ends of the hulling surfaces, the material tends to escape not only in the radial outward direction but also in the longitudinal direction of the channel by movement, And on the other hand a strong mutual friction of the particles of the material can also be obtained by not having a threshing surface that a given portion of the worm has no spiral and pushes the material in the longitudinal direction of the channel, .

Other features and advantages of the present invention will become apparent from the following description of embodiments made with reference to the accompanying drawings.

The combine 1 shown in Figs. 1 and 2 has a cutting unit 2 adjustable in the height direction for cutting the crop in its front region. As shown in the plan view of Fig. 2, the cutting unit 2 comprises a transversely oriented worm 3 having two rows of opposite spirals 4, 5 of different lengths, The opposite spirals 4 and 5 move the crops cut across the entire width of the cutting unit 2 to the front of the inclined conveyor mechanism 6 laterally.

An inclined conveyor mechanism 6 extending sideways to the side of the driver cockpit 7 feeds the harvest to the threshing and separating rotor 8 which is arranged behind the driver cockpit 7 and partially below the driver's cockpit 7, Is housed under the driver cockpit (7), and is wedged across the traveling direction of the combine (1), like the worm (3). The harvest supplied from the slope conveyor mechanism 6 to the right end of the threshing / separating rotor 8 passes through the threshing / separating rotor 8 from right to left, and the threshed straw is discharged from the left end of the threshing / separating rotor 8 And is discharged to the openings through the openings.

At the time of threshing, the wheat and the small straw pieces separated from the fruit aggregate such as the grain of the harvest or the pods of the harvest are distributed over the entire length of the threshing / separating rotor 8 while being extended from the outer surface thereof to extend below the threshing / separating rotor 8 On the base 9,

The composition of the material coming from the threshing and separating rotor 8 varies over its length. The proportion of non-grain material in the material flow coming out of the threshing separator rotor 8 increases as the grain loses its graininess as the harvest proceeds through the grain separating rotor 8. The base 9 is provided with two worms 10, 11 for shifting the material placed thereon in opposite directions in an alternating direction so as to even out the concentration of the non-wrinkled portion over the width of the base 9. [

The material reaches the preparation base 12 which vibrates from the base 9. The material is driven by the oscillating movement on the corrugated preparatory base 12 to move backward as opposed to its inclination and eventually over the rear edge 13 of the preparation base 12 to the upper body 14 of the curvature separation system. Falls to the top. The fan 15 mounted below the preparation base 12 is provided with light non-alimentary components falling between the upper body 14 and the lower body 16 and between the lower body 16 and the receiving base 17 Chaga creates airflow. That is, the substantially free wheat reaches the conveyance channel 18 at the lower end of the receiving base 17. The worm 19 rotating in the transfer channel 18 empties the grains sideways towards the elevator 20 and the grains are transferred therefrom to the gravity tank 21 on the preparation base.

The rice husk material that is too heavy to pass through the sieve 14 and 16 and too heavy to be washed by the air current falls off the rear edge of the sieve 14 to reach the second conveyance channel 22, The worm 23 is rotating. Such a worm 23 feeds the rice husk material to the elevator 24 and the elevator 24 raises the rice husk material onto the base 9. Thereupon, the rice husk material is mixed with the material coming from the threshing / separating rotor 8 by the worms 10, 11 and then transferred onto the preparation base 12 again.

To ensure efficient separation of the grains, it is important to keep the amount of particles that will pass through the grain separation system of the combine several times as small as possible. The fruit aggregate or slices containing the grains that have entered the rice husk should be loosened as far as possible before returning them to the base (9). To achieve this, the inner surface of the wall 25 of the transfer channel 22 is patterned and the surface 26 of the worm 23 facing the wall 25, as schematically shown in the sectional view of Figure 3, Forms a wedge interposed space 27 together with the wall 25 and moves in the direction in which the interposed space 27 is expanded by the rotation of the worm 23, that is, from right to left in Fig. Here, the rice husk material in the conveyance channel 22 is partly conveyed in the direction of movement of the surface 26, and partly in the interposition space 27, (25). ≪ / RTI > Due to the continuously increasing pressure as the surface 26 passes through the rice husk material, there is a strong mutual friction of the rice husk particles, and such friction breaks the fruit aggregate pieces more finely and breaks the grain.

The pressure applied to the rice husk material after passing through the acute angle edge 28 of the surface 26 toward the wall 25 is sharply reduced and the material tends to loosen and loosen loose again, Is further supplemented.

The first practical configuration of the principle shown in Fig. 3 will be described with reference to Figs. 4 to 6. Fig. 4 is a plan view of the transport channel 22. Fig. The transfer channel 22, whose top surface is opened, has a perforated plate 29 curved in a semi-cylindrical shape in a lower region thereof. The apertures of such perforated plate 29 form a rugged surface pattern that interferes with the movement of the material within the transfer channel 22.

5 shows a transfer channel 22 in which a worm 23 is disposed. A threaded spiral (31) extends around the center spindle (30) of the worm. The helix 31 is angled radially in the longitudinal section, as can be seen in Fig. A strip 32 joining with the wall 25 at an acute angle in the axial section of Figure 6 and whose outer surface corresponds to the surface 26 of Figure 3 is welded to the outer edge of the spiral 31. [

5, the worm 23 rotates in a counterclockwise direction, so that the rice husk material placed in the conveying channel 22 is conveyed by the spiral 31 from the lower side in the perspective view of Fig. 5 to the cross-sectional view of Fig. 6 . At this time, the material entering the interspace of the wedge-shaped cross section between the wall 25 and the strip 32 is subjected to the threshing action described with reference to FIG.

Between the spiral lines of the spiral 31, blades 33 projecting radially from the spindle 30 sporadically and bent in the opposite direction of the rotational direction in the outer region are disposed. Figure 5 shows only one such blade 33 and it is preferred that a plurality of such blades 33 are distributed staggered in each direction across the length of the spindle 30. [ The blades 33 are double acting. On the other hand, the blades move the rice husk material in the conveyance channel 22 in the circumferential direction. If the rice husk material is low in the feed channel 22, the rice husk material is substantially agitated by the blade 33, so that the material near the wall 25, which has already been subjected to the once-thawed action by the strip 32, Another material that can be detached from the wall 25 and has not yet passed through the interposition space 27 can enter the spot. If the material is high in the transfer channel 22, the material may be raised above the adjacent section of the spiral 31 by the blade 33 or even temporarily released from the channel 22, Do not. The second action of the blade 33 is a threshing action similar to the threshing action of the strip 32 because the outer section of the blade 33 curved opposite to the direction of rotation together with the wall 25 forms a wedge- .

The teeth 34 at the radially outer edge of the outer section of the blade 33 are dimensioned such that the intervening space between the teeth 34 can pass the grain but does not allow the coarse pieces to pass therethrough, Action and threshing action.

The structure of the transfer channel 22 in the configuration shown in Figs. 7 and 8 is the same as that shown in Fig. 4, and will not be described again. In this configuration, the worm 23 is formed by the spindle 30 having a largely enlarged diameter that fills the transfer channel 22 to a considerable extent. The spindle 30 is welded with plates 35 tangentially tangential to its outer surface. The longitudinal edges of the plates 35 disposed at angular intervals of 90 degrees in this configuration respectively extend obliquely with respect to the axis of the spindle 30 so that the plates 35 are supported on the chaff material 22 in the transport channel 22 The transfer action is applied. In this configuration, a wedge-shaped space 27 is formed between the plates 35 and the perforated plate 29, respectively. The plates 35 are each serrated at its edge 28 facing the perforated plate 29 to implement the same action as described above in connection with the teeth 34 of the blade 33.

The plates 35 of the four groups of axes juxtaposed in the axial direction are slightly overlapped with each other in the axial direction so that the transporting material sliding over the front edge 36 of the plate 35 is axially spaced four And is accommodated in the plate 35 of the group of groups to be continuously conveyed. The shear force generated in the material as it passes through the front edge 36 also supports the threshing action.

Figs. 9 and 10 show a third configuration of the warm conveyor apparatus in a plan view and a radial direction sectional view. As in the configuration shown in the leaf, the spindle 30 fills a significant portion of the volume of the transfer channel 22. In this configuration, the tube sections 37 spirally welded on the spindle 30 are responsible for the functions of the plates 35.

In particular, as shown in the cross-sectional view of FIG. 10, the tube sections 37 are provided with a sloped surface 26 defining an intervening space 27, followed by a cross- / 4.

The tube sections 37 can be recognized as parts of a total of four spirals that are periodically broken so that the sections of the worm, denoted by reference numeral " 38 " in FIG. 9, There are four tube sections 37 staggered by 90 degrees from each other in the short sections 39 lying therebetween (Fig. 10 shows a cross-sectional view through such section) while only sections 37 are present .

In the fourth configuration of the warm conveyor apparatus shown in Fig. 11, the spindle 30 also fills most of the cross section of the conveyance channel 22. The spirals extending around the spindle are formed by welded tube sections 40, in which case the tube sections 40 each extend about twice the spindle about the spindle 30. Due to the circular cross-section of the tube sections 40, again there is a wedge-shaped space between the tube sections 40 and the perforated plate 29 of the transport channel 22.

A section of the spindle 30 without a spiral extends between the two tube sections 40, respectively. In such a section, the material is continuously propelled only by the pressure of the material pushed from the upstream tube section 40. By such stagnation in the spiral-free section, the material is strongly pressed against the perforated plate 29, which contributes to the threshing action.

The axially adjoining tube sections 40 have a phase shift with respect to each other by 180 degrees in this case, which also contributes to generating a shear force in the material being conveyed.

When the material conveyed by the warm conveyor apparatus according to any of the above-described arrangements reaches the elevator 24, a considerable part of the grains contained therein are detached from the remaining constituents of the heat accumulation aggregate, The other components of the aggregate and the fruit aggregate can be separated from each other when passing through the sieve 12 and the sieve 14, 16 again. Since it is avoided to return the material several times, the amount of material circulating from the given cutting output of the cutting unit 2 to the sieves 14, 16 at the same time is reduced, thereby enabling efficient grain separation.

Further, the additional threshing in the transfer channel 22 allows for careful actuation of the threshing separator rotor 8 and a significant portion of the non-grain material from the threshing separator rotor 8 onto the base 9. Which together with the straw reduces the loss of grain due to the grain and grain fragments from the threshing separation rotor 8.

Figure 1 is a schematic side view of a combine illustrating various internal components within a combine.

Figure 2 is a top view of the combine of Figure 1;

3 schematically illustrates the working principle of the present invention.

4 is a perspective view of the transport channel;

5 is a perspective view of a transfer channel according to a first configuration of the present invention in which a worm is disposed therein.

Figure 6 is a longitudinal section of the transfer channel and worm of Figure 5;

7 is a perspective view of a transfer channel according to a second embodiment of the present invention in which a worm is disposed therein.

8 is a cross-sectional view of the transfer channel and worm according to the second configuration.

9 is a plan view of a transfer channel and a worm according to a third configuration of the present invention.

10 is a cross-sectional view of a transfer channel and worm according to a third configuration;

11 is a perspective view of a transfer channel and a worm according to a fourth configuration of the present invention.

Description of the Related Art

1: combine 2: cutting unit 3. 10, 11, 19, 23: worm

4, 5, 31: helix line 6: inclined conveyor mechanism 7: driver's cockpit

8: Threshing and separating rotor 9: Base 12: Preparation base

13: rear edge 14: upper body 15: fan

16: lower body 17: receiving base 18, 22: conveying channel

20, 24: elevator 21: ditch tank 25: wall

26: surface 27: intervening space 28: edge of acute angle

29: perforated plate 30: spindle 32: strip

33: blade 34: tooth 35: plate

36: front edge 37, 40: tube section 38, 39:

Claims (15)

A combine worm conveyor apparatus comprising a transfer channel (22) and a rotatably driveable worm (23) extending within the transfer channel (22) The surfaces 26, 32 and 33 of the worm 23 that form the wedge 23 form a wedge-shaped interspace 27 which widens in the conveying direction of the worm 23 together with the wall 25 of the conveyance channel 22 And a worm conveyor for the combine. A combine worm according to any one of the preceding claims, characterized in that said curling surface (26, 32, 33) has an acute angle edge (28) facing the wall (25) Conveyor device. A worm conveyor apparatus for combine according to any one of the preceding claims, characterized in that said curling surface (26, 32) forms the outer edge of the spiral (31) of the worm (23). A worm (23) according to any one of the preceding claims, characterized in that said curling surface (26, 33) is arranged in an intervening space between two adjacent pitches of the spiral (31) Worm conveyor device. 5. The worm conveyor apparatus for combine according to claim 4, characterized in that said hoisting surface (26) is supported on the surface of a spiral (31) which applies a shear force. 5. The combine worm conveyor according to claim 4, characterized in that said curling surface (26) is a radially outward region of the blade (33) projecting from the central spindle (30) of the worm Device. A worm conveyor apparatus according to any one of the preceding claims, characterized in that said hoisting surface (26) is part of a tube section (37, 40) fixed to a central spindle (30) of a worm (23). 8. A method as claimed in claim 7, characterized in that a longitudinal slit is formed in the tube section (37), the edge of which is at the edge of the hoisting surface (26) facing the wall (25) 28) of the worm conveyor for combine. A worm conveyor apparatus according to any one of the preceding claims, characterized in that said threshing surface (26) protrudes in a generally normal direction from the central spindle (30) of the worm (23). 8. The worm conveyor apparatus according to any one of the preceding claims, characterized in that said curling surface (26) is inclined with respect to the axis of rotation of the worm (23). 3. Combination according to claim 1 or 2, characterized in that the edge (28) of the hoisting surface (26) facing the wall (25) of the conveying channel (22) Worm conveyor device. 3. Warm conveyor apparatus for combine according to claim 1 or 2, characterized in that it has a plurality of hinged surfaces (26) which are not connected to each other. 13. The worm conveyor apparatus for combine according to claim 12, characterized in that two or more hitting surfaces (26) staggered in the circumferential direction are partially overlapped in the axial direction. 13. The worm conveyor apparatus for combine according to claim 12, characterized in that the worm (23) comprises one or more sections without spiral. 3. Warm conveyor apparatus according to claim 1 or 2, characterized in that the wall (25) of the conveying channel (22) is uneven.

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