KR100227968B1 - Combine - Google Patents

Abstract

In the combiner equipped with the discharge straw conveying apparatus 23 which conveys the straw discharged | emitted from the threshing apparatus 4 with the discharge straw chain 34 and the fitting rail 35 which opposed it, The discharge straw chain 34 ) Is swingably configured between the conveyance posture close to the fitting rail 35 and the maintenance posture spaced apart from the fitting rail 35. The swing shaft core of the discharge straw chain coincides with the rotation shaft core of the drive sprocket 30 arranged on the conveyance end side.

As a result, even if the discharge straw is clogged between the discharge straw chain 34 and the fitting rail 35, a highly maintainable combine can be removed.

Description

Combine {COMBINE}

The present invention relates to a combine with a discharge straw conveying mechanism for conveying straw discharged from the threshing apparatus while fitting the discharged straw chain and the fitting rail opposed thereto.

Conventionally, in the combine, the discharge straw chain is fixed with respect to the fitting rail.

Therefore, in the combine of the said conventional structure, once discharge straw was clogged between the discharge straw chain and the fitting rail, long time and large labor force were needed for the operation which removes this.

The present invention makes it possible to remove this relatively easily even if the discharge straw is clogged between the discharge straw chain and the fitting rail, thereby providing a combine having high maintenance.

1 is an overall side view of a combine;

2 is a longitudinal cross-sectional side view of the structure around the threshing apparatus of the combine;

3 is a plan view of the structure around the threshing apparatus with the cover member open;

4 is an inclination of the discharge straw conveying apparatus,

5 is a longitudinal rear view of the threshing apparatus;

Fig. 6 is a longitudinal sectional side view showing the start end of the bottom conveying mechanism;

7A is a view showing the chain raising means and the chain lowering means in a state where the discharge straw chain is lowered;

7B is a view showing the chain raising means and the chain lowering means in a state where the discharge straw chain is raised;

8 is a transverse plan view of an end of the discharge straw conveying apparatus;

9 is an inclination diagram showing a terminal portion of the bottom conveying mechanism;

10 is a view showing the positional relationship between the cover member and the discharge straw chain in the working position;

11 is a view showing the positional relationship between the cover member and the discharge straw chain in the maintenance posture;

12a shows a state in which the discharge straw chain is in the working position,

12B is a view showing a state where the discharge straw chain is in the maintenance posture,

13 is a longitudinal sectional side view of the discharge straw processing unit;

14 is a longitudinal sectional view of the discharge straw chain and the fitting rail, and

15 is a diagram illustrating a process conversion mechanism.

The characteristics of the present invention as set forth in claim 1, characterized in that, in the above-mentioned combine, the discharge straw chain is fitted with a first posture close to the fitting rail in order to carry and the maintenance of the discharge straw conveying mechanism. It is configured so as to be swingable between the second postures spaced from the second position. With this arrangement, it is not only possible to carry out the normal discharge straw conveying operation in the first posture, but also when the discharge straw is blocked between the discharge straw chain and the fitting rail, the discharge straw chain is separated from the fitting rail. By swinging in the second posture, the force of the fitting of the discharge straw between the discharge straw chain and the fitting rail can be at least partially released, thereby easily discharging the blocked straw between the discharge straw chain and the fitting rail. Can be removed, resulting in improved maintenance. In addition, in moving the discharge straw chain to the maintenance posture spaced from the fitting rail, the discharge straw chain is swinged, so that the posture change is simpler than the structure in which the entire discharge straw chain is moved in parallel. In addition, the operation force necessary for changing the posture to the second posture is also solved in about half.

The feature of the present invention is that the discharge straw chain is disposed so as to face the fitting rail from above, and the discharge straw chain is disposed in an up and down direction with respect to the fitting rail around an axis center positioned behind the discharge straw conveying mechanism. It is configured to rock. With this arrangement, since the discharge straw chain and the fitting rail are arranged in the vertical direction, the discharge straw chain and the fitting rail can hold the discharge straw in the posture laid by its own weight as it is. Since the conveying operation is carried out and the swing shaft center of the discharge straw chain is located behind the discharge straw conveying mechanism, a portion closer to the operator of the discharge straw chain and the fitting rail is farther away from the structure located in front of the discharge straw chain. Therefore, maintenance work such as removal of clogged waste straw or inspection of the waste straw chain is easy.

The feature of the present invention is that the swing shaft core of the discharge straw chain coincides with the rotation axis of the drive sprocket disposed on the conveying end side of the discharge straw chain. With this arrangement, even if a structure for supporting the discharge straw chain is swingable is not particularly prepared, since the drive sprocket and the rotary shaft or the like integrally can be used as the support structure, the discharge straw conveying mechanism can be made simpler. In addition, in the second posture, almost the entirety of the discharge straw chain can be separated from the fitting rail except just below the shaft center of the drive sprocket, so that sufficient maintenance property can be obtained. In addition, if the end of the fitting rail is placed slightly closer to the lower side of the shaft center of the drive sprocket, the entire discharge chain can be separated from the fitting rail in the second posture, thereby achieving higher maintenance. Can be.

The feature of the present invention is that the cover member covering the discharge straw conveying mechanism from above is free to open and close in the vertical direction, and the discharge straw chain is automatically placed between the first and second postures in response to the opening and closing operation of the cover member. It is shaking. With this configuration, when the cover member is opened, the discharge straw chain is automatically switched to the second posture and maintenance can be performed. When the cover member is closed, the discharge straw chain is automatically switched back to the first posture. Since the discharge straw can be conveyed, as a result, the operation for switching the discharge straw chain between the first and second postures can be easily performed.

In the above-mentioned invention of claim 4, in the configuration for switching the discharge straw chain to the second posture in response to an operation of opening the cover member, as in the invention of claim 5, it is composed of elastic means for applying upward force to the discharge straw chain. In a configuration for switching the discharge straw chain to the first posture in response to an operation of closing the cover member, the chain rising mechanism may be provided, and as in the invention of claim 6, the discharge straw chain is pushed down according to the operation of closing the cover member. 1, the pressurizing portion for switching to the posture may be provided on the cover member.

The feature of this invention is that the adjustment mechanism which can change the pushing amount of the discharge straw chain by a press part is provided. With this arrangement, by using the adjustment mechanism which can change the amount of pushing down of the discharge straw chain by the pressurizing portion, the setting interval between the discharge straw chain and the fitting rail can be changed and adjusted according to the situation of the discharge straw. Therefore, the discharge straw can be smoothly conveyed.

A feature of the invention as set forth in claim 8 is characterized in that the discharge straw chain and the fitting rail are configured as a bottom conveying mechanism for fitting the bottom of the discharge straw, and the discharge straw conveying mechanism is an endless rotating body with a locking projection. An ear tip conveyance mechanism which catches and conveys the tip of the ear is provided, and each drive sprocket of the bottom conveyance mechanism and the ear tip conveyance mechanism is arranged to share an axis with each conveyance end side, and each drive sprocket is a threshing body. The driving force is obtained from the electric shaft for driving the motor. With this arrangement, since the discharge straw conveying mechanism is composed of the bottom conveying mechanism and the ear tip conveying mechanism, the posture of the discharge straw is kept constant while the discharge straw is conveyed, and as a result, the smooth and stable discharge straw conveying Is carried out. In addition, since each drive sprocket of the bottom conveyance mechanism and the ear tip conveyance mechanism is all connected to the drive shaft for threshing body driving, even if the threshing load with respect to the threshing body increases and the rotation speed of a threshing body declines, The driving speed of the discharge straw conveying mechanism is hard to fall and can always exhibit a predetermined | prescribed discharge straw conveyance ability. In the configuration in which the drive sprocket of the discharge straw conveying mechanism is connected with the shaft of the threshing body itself, when the load on the threshing body increases and the rotation speed decreases, the driving speed of the discharge straw conveying mechanism also decreases, and as a result, the discharge straw This is in particular the case, which tends to be clogged with these straw chains and the like.

In addition, according to the invention of claim 8, since the drive sprocket of the discharge straw conveying mechanism is connected with the drive shaft for driving the threshing body, a large space can be formed around the rear end of the threshing body rotating shaft. Even if it is clogged with a discharge straw chain or the like, this can be easily removed. In the configuration in which the drive sprocket of the discharge straw conveying mechanism is connected with the shaft of the threshing body itself, an electric bevel gear or the like is arranged around the rear end of the thrust body of the threshing body, and the structure is complicated. This is in contrast to the difficulty of removing the drained straw from the drained straw chain.

In this regard, in the invention of claim 8, the rotational force of the driving shaft for threshing body driving is buffered so that the rotational speed of the threshing body does not directly affect the driving speed of the discharge straw conveying mechanism. It is good to be comprised so that it may be transmitted to the rotation shaft of threshing body itself with the equipped electric mechanism. The transmission mechanism may be a belt transmission mechanism including, for example, an input pulley, an output pulley, and a belt installed between the two pulleys. In this case, when the load on the threshing body exceeds a certain level, the belt transmission mechanism slips between the pulley and the belt. Even if the rotational speed of the threshing body decreases as a result of the buffering action, etc., it is difficult to directly affect the driving speed of the discharge straw conveying mechanism.

The feature of the present invention is that the drive shaft for driving the threshing body is arranged on the side opposite to the threshing inlet, and the cover member extends to the upper side of the threshing body, and is installed to swing around the driving shaft for the threshing body driving. Will be. With this arrangement, by opening the cover member, not only the discharge straw conveying mechanism but also the threshing chamber are opened at the same time, and a large space is formed by the threshing inlet side, so that the threshing body and the threshing chamber can be easily maintained. . In addition, since the cover member swings around the drive shaft for driving the threshing body, the threshing inlet side is opened to the greatest extent by the operation of opening the cover member, thereby maintaining the threshing chamber including the threshing body and the discharge straw conveying mechanism. It is easy to carry out.

The feature of the present invention is that the threshing body is pivoted with respect to the cover member so as to be movable up and down with respect to the threshing chamber in accordance with the opening and closing operation of the cover member. In such a configuration, since the threshing body is spaced apart upward from the threshing chamber by the operation of opening the cover member, the threshing body or threshing chamber can be inspected and maintained in an independent state, resulting in meticulous maintenance. It is easy to carry out quickly.

(Example)

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described according to drawing.

The combine shown in FIG. 1 is a traveling main body 2 equipped with a crawler type traveling device 1, and a harvesting preprocessing unit 3 in which the lifting and lowering is freely installed around the transverse center in the front part of the traveling main body 2; And a threshing apparatus 4 mounted on the left side of the traveling main body 2, and a discharge straw processing portion 5 is provided at the rear portion of the threshing apparatus 4.

In the threshing apparatus 4 shown in FIG. 1 and FIG. 2, the threshing body which carries out drive rotation in the threshing chamber 8, while the feed chain 6 and the fitting rail 7 fit the underside of a stem. (9) sweeps the tip of the ear, and the threshing material which falls down from the receiving network (10) is sorted by the grain and reprocessing material / ear and the waste straw crumb in the lower sorting part, among which, The silver is taken out to the outer side of the grain recovery device by the first recovery screw 11, and the reprocessed material / ear is returned to the threshing chamber 8 by the second recovery screw 12 for reprocessing, and fine waste straw Is discharged out of the machine by the blower (13).

As shown in FIG. 3, the transmission shaft 14 for driving the threshing body 9 (which is driven through the belt by a non-illustrated driving part located on the left side of the drawing) is a threshing inlet. It is arrange | positioned in parallel with threshing body shaft core P on the opposite side to (15). One end of the transmission shaft 14 is connected to the input pulley 16 fixed to the stem conveyance direction upward from the rotation shaft of the threshing body 9 via the belt transmission mechanism 17, and the transmission shaft 14 The other end of) is extended downward to the stem conveyance direction, and is connected to the discharge straw conveyance mechanism 23 (this is provided in the discharge straw processing part 5) mentioned later.

As shown in FIG. 5, the threshing body 9 is covered by the cover member 18, and the threshing body 9 is supported by the cover member 18. The cover member 18 is pivotally pivoted on the lower case 19 in a vertical direction around the shaft center Q of the transmission shaft 14, and the cover member 18 and its supporting frame 20 are stems. It extends out below the conveyance direction, and covers the discharge straw processing part 5 (refer FIG. 2, FIG. 4).

As shown in FIG. 3 and FIG. 4, the discharge straw processing part 5 is equipped with the discharge straw conveying apparatus 23, the 1st discharge straw processing apparatus, and the 2nd discharge straw processing apparatus. The discharge straw conveying apparatus 23 includes the bottom conveyance mechanism 21 (corresponding to the discharge straw conveying mechanism) which fits and conveys the underside of the discharge straw received from the feed chain 6 and the fitting rail 7, It consists of an ear tip stopper conveyance mechanism 22 which hangs and feeds the ear tip side of this discharge straw. The first waste straw treating apparatus includes a discharge straw cutter 24 (see FIG. 1) attached to a rear portion of the threshing apparatus 4, and the second discharge straw treating apparatus includes a discharge straw cutter 24. It consists of a discharge straw dropper 25 installed at the rear of the. Further, in the discharge straw processing unit 5, a processing conversion mechanism for converting the discharge straw into a state of finely cutting the discharge straw with the discharge straw cutter 24 and discharging the discharge straw in a state of long straw of a predetermined amount unit by the discharge straw dropper 25 ( 26) is installed.

As shown in FIG. 6, FIG. 10, and FIG. 12, the bottom conveyance mechanism 21 (namely, the discharge straw conveyance mechanism) is equipped with the discharge straw chain 34 and the fitting rail 35. As shown in FIG. The discharge straw chain 34 formed in an annular shape by connecting a plurality of chain members 27 with outward protrusions with a connecting pin includes a guide wall 29 formed along the outer circumference of the conveying frame 28B, and a conveying frame ( It is wound over the drive sprocket 30 arrange | positioned at the conveyance end side of 28B), and the chain tension guide frame 32 pressed upward by conveyance by the compression coil spring 31 freely advancing along a conveyance direction. On the conveyance end side of the conveyance frame 28B, a stopper wall 33 (see Fig. 9) for restricting the positional shift toward the width direction outward of the chain member 27 is provided. On the other hand, the fitting rail 35 is arrange | positioned facing the discharge straw chain 34 from the lower side. The discharge straw chain 34 and the fitting rail 35 are inclined near the tip end with respect to the direction of the conveying action path R of the feed chain 6 of the threshing apparatus 4 when the discharge straw is planar. It is supported by the support frame 20 so that it may convey in (FIG. 3).

As shown in FIG. 3, FIG. 8, the ear tip | tip fastening conveyance mechanism 22 is the drive sprocket 36 arrange | positioned at the conveyance end side, the reverse wheel 37 of the conveyance start side side, and the latch | engagement which rolled over these. It consists of the claw attachment chain 38 (an example of an endless rotating body with a locking projection). 28A of conveyance frames of the ear | edge fastening conveyance mechanism 22 have a relationship with the chain 38 parallel to the discharge straw chain 34 of the undercarriage conveyance mechanism 21 in plan view, and the drive sprocket 36 It is supported by the support frame 20 so as to be concentric with the drive sprocket 30 of the discharge straw chain 34.

The drive sprocket 30 of the bottom conveyance mechanism 21 and the drive sprocket 36 of the tip end conveyance conveyance mechanism 22 are driven by the transmission shaft 14 for driving the threshing body 9 as mentioned above. It is rotating. That is, the input side of the bevel gear 39 is connected to the end of the extension portion of the transmission shaft 14, and the output side of the bevel gear 39 is linked to both drive sprockets 30 and 36 through the drive chain 40. (See FIGS. 3 and 8). The bevel gear 39 is supported by being suspended from the support frame 20.

As shown in FIGS. 10, 11, 12a, and 12b, the discharge straw chain 34 is moved to the support frame 20 so as to be able to swing up and down around the shaft center of the drive sprocket 30 on its end side. It is supported and furthermore, the chain lifting means 41 which raises the discharge straw chain 34 to the maintenance posture (second posture) spaced upwardly from the fitting rail 35 by opening the cover member 18. ) Is set, while the cover member 18 is pushed down as the cover member 18 is closed, and the cover member 18 is in a working position (first posture) approaching the fitting rail 35. The pressing plate 48 (refer FIG. 4) is provided in the lower surface of

As shown in FIG. 6, FIG. 7A, FIG. 7B, the chain raising means 41 is the rod 43 and rod 43 which protrude upwards from the start end of the conveyance frame 28B of the discharge straw chain 34. As shown in FIG. ) Is attached to the upper and lower support plates 44 and 45 and the rod 43 fixed to the support frame 20 to form guide holes 44a and 45a for guiding the upper and lower movements. ) Is composed of a flange 46 positioned between the flange 46 and a compression coil spring 47 sandwiched between the flange 46 and the lower support plate 45. The compression coil spring 47 always pressurizes the rod 43, and when the cover member 18 is opened, the compression coil spring 47 has the flange 46 in contact with the top dead center, that is, the support plate 44. The rod 43 is raised until the discharge straw chain 34 swings upward.

On the other hand, when the cover member 18 is closed, the pressure plate 48 set on the cover member 18 resists the pressing force of the compression coil spring 47, presses the upper end of the rod 43 downward, and discharges the straw chain. (34) is pushed down and becomes a working posture. More specifically, the male screw portion 43a is formed at the upper end of the rod 43, and the rod 43 is pressed from the pressure plate 48 through the nut 49 screwed thereto. In this structure, the amount of pushing down of the discharge straw chain 34 can be changed by changing the vertical position with respect to the rod 43 of the nut 49. In other words, the nut 49 may be referred to as an adjustment mechanism for changing and adjusting the spacing of the discharge straw chain 34 with respect to the fitting rail 35.

On the other hand, below the nut 49 of the rod 43, the nut 50 is screwed up and down freely. The nut 50 is positioned in the up-down direction with respect to the support frame 20 by contacting the support plate 44 above the support frame 20 while the discharge straw chain 34 is pushed down. By positioning, the discharge straw chain 34 is prevented from approaching the fitting rail 35 more than necessary by vehicle vibration or the like.

As shown in FIG. 13, the fitting rail 35 is comprised from the front rail part 35A and the rear rail part 35B, and the rear rail part 35B is backed by the front rail part 35A. In one direction of the support shape, expansion and contraction of the front rail portion 35A is freely supported. In addition, the discharge straw cutter 24 and the discharge straw dropper 25 is installed in front and rear of the rear rail portion 35B. The process conversion mechanism 26 is comprised by this freely expandable rear rail part 35B, the discharge straw cutter 24, and the discharge straw dropper 25, and the front rail part 35A of the rear rail part 35B. By changing the protruding length from (backward) from, it is possible to select a destination for supplying the discharged straw discharged from the discharge straw conveying apparatus 23 between the discharge straw cutter 24 and the discharge straw dropper 25. The processing conversion mechanism 26 is provided with an expansion and contract operation unit 52 for expanding and switching the working length of the rear rail portion 35B. The expansion and contraction operation part 52 is comprised by the operation lever 55 and the lever guide 56 which operate the rear rail part 35B in response to the pressing force of the compression coil spring 51 via the operation wire 54. As shown in FIG. have.

The lever guide 56 is provided with a plurality of engaging portions 56a on which the operating levers 55 can be hooked, and the discharge straw is attached depending on where the operating levers 55 hang from among the plurality of engaging portions 56a. In addition to the discharge straw cutter 24 and the discharge straw dropper 25, the length of action of the rear rail portion 35B is also selectable.

Regarding the structure of the processing conversion mechanism 26 as well, as shown in Fig. 15, both the front rail portion 35A and the rear rail portion 35B are formed of a pipe material. The rear rail portion 35B is projected and pushed backward from the front rail portion 35A by the compression coil spring 51 which is inserted into the rear rail portion 35B and moves. One end of the compression coil spring 51 is supported on the front end side of the front rail portion 35A, and the other end is supported on the end portion of the rear rail portion 35B. 14, the cross-sectional shape of the front rail part 35A is an ellipse long up and down, the cross-sectional shape of the rear rail part 35B is formed circular, and the rear rail part 35B is also shown. Since the support portion 53 which lifts and supports the front rail portion 35A is provided at the end of the rear rail portion 35B so as to be supported in an inclined state with respect to the front rail portion 35A, the rear rail portion ( As 35B) stretches, its end portion approaches the discharge straw chain 34.

As shown in Figs. 13 and 15, the front rail portion 35A is attached to the front guide rod 57 fixed to the frame (not shown) and the lower case 19 near the discharge straw cutter 24. It is connected to the fixed guide rod 57. Compression coil springs 58 are fitted to each guide rod 57, and the compression coil springs 58 elastically press the front rail portion 35A toward the discharge straw chain 34. As shown in FIG.

According to the present invention, even if the discharge straw is clogged between the discharge straw chain 34 and the fitting rail 35, there is provided a high maintenance combine that can remove it relatively simply.

Claims (10)

The discharge straw chain 34 is provided with a discharge straw conveying mechanism 23 for conveying the straw discharged from the threshing apparatus 4 by fitting the discharge straw chain 34 and the fitting rail 35 opposed thereto. ), A first posture close to the fitting rail 35 to carry out the conveyance, and a material spaced apart from the fitting rail 35 to perform the maintenance of the discharge straw conveying mechanism 23. The combine which is comprised so that swinging between two postures is possible. The discharge straw chain (34) according to claim 1, wherein the discharge straw chain (34) is disposed to face the fitting rail (35) from below, and the discharge straw chain (34) is located behind the discharge straw conveying mechanism (23). A combine, characterized in that configured to swing in the vertical direction with respect to the fitting rail (35) around the axis. 3. The combine according to claim 2, wherein the swing shaft core of the discharge straw chain (34) coincides with the rotation axis of the drive sprocket (30) disposed at the conveyance end side of the discharge straw chain (34). 4. The cover member 18 according to claim 2 or 3, wherein the cover member 18 covering the discharge straw conveying mechanism 23 from above is freely opened and closed in an up and down direction, and according to the operation of the opening and closing of the cover member 18. Combine, characterized in that the discharge straw chain 34 automatically swings between the first and second posture. 5. The elasticity according to claim 4, wherein, according to the operation of opening the cover member (18), the discharge straw chain (34) is pushed upward in such a way that the discharge straw chain (34) is pushed up to the second posture. A combine, characterized in that a chain elevating mechanism 41 composed of means 47 is provided. According to claim 4, According to the operation of closing the cover member 18, a pressing portion 48 for pushing down the discharge straw chain 34 to the first posture is installed on the cover member 18 Combine, characterized in that. 7. The combine according to claim 6, characterized in that an adjustment mechanism is provided which is capable of changing the pushing amount of said discharge straw chain (34) by said pressing portion (48). The discharge straw chain 34 and the fitting rail 35 are configured as a bottom conveying mechanism 21 for fitting the bottom side of the discharge straw. And an ear tip conveyance mechanism 22 for conveying the ear tip side of the discharge straw to the discharge straw conveying mechanism 23 by an endless pivot 38 with a locking projection, and the bottom conveying mechanism 21. The drive sprockets 30 and 36 of each of the ear tip conveyance mechanisms 22 are arranged so as to share the shaft center at each conveyance end side, and each of the drive sprockets 30 and 36 is the threshing device 4. A combine, characterized in that a driving force is obtained from a transmission shaft (14) for driving the threshing body (9). 9. The drive shaft 14 for driving the threshing body is disposed on the side opposite to the threshing inlet 15, and the cover member 18 extends to the upper side of the threshing body 9. Combines, characterized in that installed to swing around the transmission shaft (14). 10. The method according to claim 9, wherein the threshing body (9) is pivoted with respect to the cover member (18) to be movable up and down with respect to the threshing chamber (8) according to the opening and closing operation of the cover member (18). Combine.

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