JP2003070334A - Loading driving portion structure of reaping harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a wide step space in a loading driving portion without causing a trouble where the positioning of a reaping transporting device at a reaping target is difficult and a trouble which is caused with the increase in the total length of the machine frame. SOLUTION: In the loading driving portion structure of the reaping harvester, the loading driving portion 6 and the reaping transporting device 3 capable of being lifted or lowered on a laterally directed support P1 disposed at the rear portion are disposed laterally in parallel in the front portion of a travel machine frame 2 having a pair of right and left travel devices 1. Therein, the front end of a loading step 58 laid in the loading driving portion 6 is positioned at a place behind the front end of a control tower 4 vertically disposed at the front end center of the loading driving portion 6 in a state equipped with operation tools 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front and rear part of a traveling machine body having a pair of left and right traveling devices, and a reaping and conveying device for moving up and down around a left and right fulcrum set backward and a boarding operation part. It relates to the boarding operation structure of the harvesting machine that is installed in parallel with each other.

[0002]

2. Description of the Related Art In the above-described boarding operation section structure of a harvesting harvester, there is a boarding operation section in which a control tower is erected at the center of the front end. Since the control tower is equipped with an operation tool on the upper part for turning the machine and raising and lowering the reaping and conveying device, it is equipped with a linkage mechanism for turning operation and a linkage mechanism for raising and lowering inside. It is formed in a size that enables Therefore, it is necessary to increase the distance from the rear end of the control tower to the front end of the driver's seat in order to secure a wide foot space in the boarding operation section.

Conventionally, in the structure of the boarding operation part of such a harvesting machine, the front end of the control tower and the front end of the boarding step laid in the boarding operation part are arranged to coincide with each other.

[0004]

By the way, in the above harvesting and harvesting machine, when the position of the mowing and conveying device is adjusted with respect to the object to be mowed, the mowing and conveying device located at the lower front of the boarding operation section. It is known that the front end of the car and the object to be mowed are visually checked to grasp the positional relationship between them, but the front end of the control tower and the front end of the boarding step are made to coincide with each other as in the above-described conventional art. If you try to secure a wide foot space in a sloping object, the front end of the boarding step will hinder the visual observation of the front end of the reaping and conveying device from the boarding operation part, and the alignment of the reaping and conveying device with respect to the object to be reaped will be difficult. In order to avoid such an inconvenience, and in order to avoid the inconvenience, the reaping and transporting device is arranged on the front side of the machine body, and it is easy to visually check from the boarding operation part of its front end. If that was supposed to lead to a disadvantage that the entire length of the fuselage is longer.

An object of the present invention is to ensure a wide foot space in the boarding operation section without causing the inconvenience of making it difficult to align the cutting and conveying device with the object to be mowed and the inconvenience of increasing the overall length of the machine body. Especially.

[0006]

[Means for Solving the Problems] [Structure] In order to achieve the above-mentioned object, in the invention according to claim 1 of the present invention, the rear part is set at the front part of the traveling machine body having a pair of left and right traveling devices. A harvesting and conveying device that moves up and down around the left and right fulcrum,
In the boarding operation part structure of the harvesting machine, in which the boarding operation part is arranged side by side, the front end of the boarding step laid in the boarding operation part is the center of the front end of the boarding operation part with the operation tool provided. It was configured to be located behind the front end of the control tower that was erected on.

[Operation] According to the invention described in claim 1, even if the distance from the rear end of the control tower to the front end of the driver's seat is increased to widen the foot space of the boarding operation section, the mowing object is mowed. When aligning the transfer device, from the space formed between the control tower and the front end of the boarding step,
Since the front end of the reaping and conveying device and the reaping object can be visually checked, and the positional relationship between the reaping object and the reaping and conveying device can be easily grasped, the reaping and conveying device can be located closer to the front side of the machine body. The position of the cutting and conveying device with respect to the object to be cut can be easily adjusted without making any improvement such that the cutting operation is made easier to see from the boarding operation section of the front end of the cutting and conveying device.

[Effect] Therefore, it is possible to secure a wide foot space in the boarding operation section without causing the inconvenience of making it difficult to align the mowing and conveying device with respect to the mowing object and the inconvenience of making the entire length of the machine body long. .

[Structure] In the invention according to claim 2 of the present invention, in the invention according to claim 1 above, it is formed between the control tower and the front end on the side of the cutting and conveying device in the boarding step. The space was used as an ascending / descending path of the harvesting and conveying device.

[Operation] According to the invention described in claim 2, the upper limit position of the reaping and conveying device can be set to a higher position, so that a steep slope or a step board can be moved up and down to a traveling road surface. The reaping and conveying device can be smoothly performed without contact.

[Effect] Therefore, it has become possible to easily cross the ridges and unload and load the machine body on the bed of the truck.

[Structure] In the invention according to claim 3 of the present invention, in the invention according to claim 1 or 2, the control tower and the front end on the opposite side to the cutting and conveying device side in the boarding step are provided. An operation pedal is arranged in the space formed between them.

[Operation] According to the invention described in claim 3, in disposing the operation pedal in the boarding operation section, it is not necessary to form an opening for pedal insertion in the boarding step, and the operation is performed in the opening. There is no need to insert the pedal.

[Effect] Therefore, it has become possible to facilitate the manufacture.

[0015]

1 shows an overall left side surface of a self-removing combine, which is an example of a harvester, FIG. 2 shows an overall right side surface thereof, and FIG. 3 shows an overall plane surface thereof. In this combine, the harvesting and conveying device 3 is connected to the front left side of a traveling machine body 2 provided with a pair of left and right crawler type traveling devices 1 as a traveling device so as to be able to move up and down around a horizontal axis P1. To the right of the front part of 2 is the control tower 4 and the driver's seat 5.
A boarding operation unit 6 including the above is formed, and threshing processing and selection processing are performed on the cut culm from the cutting transfer apparatus 3 at a position behind the cutting transfer apparatus 3 and the boarding operation section 6 in the traveling machine body 2. The threshing device 7 is mounted, and at the left rear part of the threshing device 7 in the traveling machine body 2, the waste straw cutting device 8 for shredding the waste straws from the threshing device 7 is equipped, and the right side of the threshing device 7 in the traveling machine body 2 is equipped. A bag packing device 11 for packing the grains conveyed from the threshing device 7 via the lifting conveyor 9 into the paddy bag 10 is arranged at the rear position.

The harvesting and conveying device 3 includes three dividers 12 for scooping the laid planted grain culm, left and right pulling mechanisms 13 for piling up the laid planted grain culm, and a clipper type for cutting the plant side of the planted grain culm. And a transport mechanism 15 for changing the posture from a vertical orientation to a horizontal orientation while transporting the harvested culm rearward, and the like, and is configured to perform two-row harvesting transportation. .

As shown in FIG. 4, in the threshing device 7, the feed chain 16 disposed on the left outer side of the threshing device 7 holds the stock side of the cut culm from the transfer mechanism 15 and conveys it backward. The tip of the cut culm guided by the feed chain 16 is guided by the feed chain 16 by the handling cylinder 17 mounted on the left half of the threshing device 7 rotating about the longitudinal axis P2. The threshing process is performed on the side, and the Karato 19 provided at the lower left of the handling cylinder 17 rotates around the axial center P3 in the front-rear direction and supplies the sorting wind that flows toward the right side. The processed material leaked from the receiving net 18 by the treatment is subjected to a wind selecting process, and the swing selecting mechanism 20 disposed below the receiving net 18 is moved in the left-right direction by the rotation of the drive shaft 21 facing forward and backward. By the swing drive, the processed products supplied to the swing selection mechanism 20 are moved to the right. By performing a sieving / sorting process on the processed product while transporting, the No. 1 screw 22 arranged on the upper side in the sorting direction below the swing sorting mechanism 20 rotates around the axis P4 in the front-rear direction. , Swing selection mechanism 2
Lifting conveyor 9
No. 2 screw 23, which is conveyed to the lower side of the swing sorting mechanism 20 and is disposed on the lower side in the sorting direction below the swing sorting mechanism 20, rotates about the axis P5 in the front-rear direction.
In the sorting direction, the mixture of grains and broken straw leaked from the lower side is conveyed toward the processing product transport mechanism 24 of the thrower type, and the thrower blade 25 of the processing product transport mechanism 24 is integrated with the No. 2 screw 23. By rotating, the inclusions are reduced onto the receiving net 18 and re-sorted.

As shown in FIGS. 2 and 4, of the processed products, the swing selecting mechanism 20 does not leak from the swing selecting mechanism 20.
Dust such as cut straws and scraps transported to the rear edge of the
It is designed to be discharged from a dust outlet 26 formed on the right side surface on the boarding operation unit 6 side of the threshing device 7, whereby dust such as straw scraps discharged from the threshing device 7 is cut into uncut grain culm. It is possible to reliably prevent the inconvenience of falling on the grain, and thus to avoid a decrease in the sorting performance and the sorting efficiency due to the dust that has fallen on the uncut grain culm being supplied to the threshing device 7 together with the cut grain culm. It has become.

As shown in FIG. 5, the discharge straw cutting device 8 has a first roll 27 that rotates around a horizontal axis P6.
In addition, a locking pin 28 equipped so as to move in and out along with the rotation locks the left and right discharge straws from the feed chain 16 at an intermediate portion thereof so as to be adjacent to the first roll 27 and to the left and right. It is folded in two in a pine needle shape by scraping it toward the second roll 29 that rotates around the axis P7 of the orientation, and the pine needle-shaped discharge straw is placed below them by the rotation of each roll 27, 29. Fixed blade 30 and left-right axis P
By feeding toward the rotary blade 31 that rotates around 8,
A cylindrical cutter is used that shreds in order from the refraction end of the discharge straw, which makes it possible to compare the case where a disc-shaped cutter that receives left and right discharge straws in its posture and shreds with multiple disks is used. Then, the left-right length of the installation space required for the installation of the straw discharging device 8 behind the threshing device 7 can be significantly reduced, and the installation space of the bagging device 11 can be increased in the left-right direction accordingly. You can do it.

As shown in FIGS. 1 to 3, the bag filling device 11 includes a mounting table 32 formed on the right rear portion of the traveling machine body 2 and a support frame 33 provided upright on the front part of the mounting table 32. Two pairs of left and right support rods 3 extending leftward and rightward.
In the left and right paddy bags 10 supported by 4 and 4,
A two-bag type that guides and feeds the grains from No. 2 by a left and right bifurcated discharge cylinder 35 connected to the transport end of the lifting conveyor 9 is used. Compared with the case of using one bag type By doing so, it is possible to improve the packing efficiency.

As described above, in short, since the swing selecting mechanism 20 having a length longer than that of the handling cylinder 17 is arranged in the left-right direction, compared with the case where the swing selecting mechanism 20 is arranged in the front-rear direction,
The front-rear length of the threshing device 7 can be shortened, and the waste straw cutting device 8 arranged at the left rear part of the threshing device 7 adopts a cylindrical cutter capable of saving space. At the right rear part of the threshing device 7, a two-bag type bagging device 11 capable of improving the bagging work efficiency is arranged in a horizontally long posture in which the grain bags 10 are arranged side by side, which reduces the working capacity. Without inviting them, it is possible to shorten the front-rear length of the traveling body 2 on which they are mounted and to reduce the weight thereof, and accordingly, the total length of the combine can be shortened and the total weight can be reduced. Can
Therefore, even though it is a passenger type equipped with the boarding operation unit 6, it can be loaded on the bed of a light truck, and even in a field such as a mountainous area where transportation is limited to a light truck due to road conditions and the like, work can be performed. It is possible to use a high-performance riding type combine.

As a result, it is not necessary to walk through a muddy field for cutting and harvesting as in the case of using a walk-behind combine, and the position of the cutting and conveying device 3 and the position of the planted culm to be cut are matched. Since it becomes possible to easily perform the striping work and the like, it is possible to reduce the labor and improve the workability when performing the cutting and harvesting work.

Further, it is possible to avoid the imbalance of the left-right balance due to the storage amount of the bagging device 11 which occurs when the threshing device 7 and the bagging device 11 are arranged side by side in the left-right direction, and the weight is heavy. Since it is not necessary to equip the bagging device 11 with a balance weight in order to achieve a balance with the threshing device 7, it is possible to further reduce the weight while improving the stability of the machine body.

Moreover, in shortening the total length of the combine, it is not necessary to close the space between the mowing and conveying device 3 and the threshing device 7, so that the mowing culm can be changed to a suitable posture for the threshing device 7. Since it is possible to easily secure the required length between the mowing device 14 and the threshing device 7 of the mowing and conveying device 3, there is no adverse effect on the threshing process, and the mowing culms are threshed. Pillow handling work for manually supplying the device 7 can be performed well.

As shown in FIGS. 1 to 3 and FIGS. 6 to 9, the control tower 4 is boarded while the upper portion of the control tower 4 is provided with a cross swing type neutral return type operation lever 36 as an example of the operation tool 36. It is provided upright at the center of the front end of the portion 6, and inside thereof, an operation lever 37 is provided for each of an elevating operation mechanism 37 for elevating the reaping and conveying device 3 and a corresponding side clutch brake 38 acting on the crawler type traveling device 1. A linkage mechanism 39 that links the 36 is provided.

The raising / lowering operation mechanism 37 raises the reaping / conveying device 3 by causing the screw shaft 43 to normally rotate by the power from the engine 42 transmitted through the belt tension type raising / lowering clutch 40 and the chain type transmission mechanism 41. The motive power from the engine 42 is cut off by the lifting clutch 40, and the screw shaft 43 is reversely rotated by the weight of the reaping and conveying device 3 to lower the reaping and conveying device 3 to lower the output clutch 44 of the raising and lowering clutch 40 in the cut state. It is configured as a screw feed type that stops the raising and lowering of the reaping and conveying device 3 by stopping the rotation of the screw shaft 43 by engaging and joining 45, and the braking arm 45 and the tension arm 46 of the raising and lowering clutch 40 cooperate with each other.
It is linked to the operation lever 36 via 9. The braking arm 45 is urged to join the output pulley 44 by the first spring 47. When the braking arm 45 is joined to the output pulley 44 by the urging force of the first spring 47, the output pulley 44 is allowed to rotate in the normal direction by the power from the engine 42 and cut. Output pulley 4 depending on the weight of the transport device 3
It is designed to prevent the reversal of 4. The tension arm 46 is cut and biased by the second spring 48.

Each side clutch brake 38 is housed in the transmission case 50 together with a gear type speed change mechanism 49 for changing the power from the engine 42, and the crawler type traveling device 1 corresponding to the power after the speed change by the gear type speed change mechanism 49. To a corresponding crawler type traveling device 1 and a shut-off state in which the power after shifting is not transmitted to the corresponding crawler type traveling device 1 and a braking state in which the corresponding crawler type traveling device 1 is stopped by braking. The operating arms 51 are linked to the operating lever 36 via the linking mechanism 39. Further, each side clutch brake 38 is urged by the spring 52 to return to the transmission state.

The linkage mechanism 39 includes a first balance arm 53 in the front-rear direction, which swings integrally with the operating lever 36 about an axis P9 in the left-right direction, and a left-right unit which swings integrally with the operating lever 36 in the center axis P10 in the front-rear direction. The second balance arm 54, the first linkage wire 55 extending from the rear end of the first balance arm 53 to the braking arm 45, the second linkage wire 56 extending from the front end of the first balance arm 53 to the tension arm 46 of the lifting clutch 40, and , The left and right third linkage wires 57 extending from the left and right ends of the second balance arm 54 to the corresponding operation arm 51 of the side clutch brake 38, and the like.

When the operating lever 36 is operated to the neutral position, the lifting clutch 40 is urged by the urging of the first spring 47.
By allowing the braking arm 45 to be joined to the output pulley 44 of FIG. 1 and allowing the cutting operation of the tension arm 46 by the urging of the second spring 48, the cutting and conveying device 3
By stopping the vertical movement and allowing the switching of each side clutch brake 38 to the transmission state by the urging of each spring 52, the straight traveling state in which the left and right crawler type traveling devices 1 are driven at a constant speed is revealed. It is supposed to do.

When the operating lever 36 is operated from the neutral position to the front lower position, the braking arm 45 is separated from the output pulley 44 against the urging force of the first spring 47, and the weight of the reaping / conveying device 3 is increased. By allowing the screw shaft 43 to rotate in the reverse direction, the cutting and conveying device 3 is lowered, and conversely, the operation lever 36
Is operated from the neutral position to the rearwardly raised position, the tension arm 46 is turned on and off against the urging force of the second spring 48, and the screw shaft 43 is normally rotated by the power from the engine 42. The carrier device 3 is raised.

On the other hand, when the operating lever 36 is operated from the neutral position to either the left or right direction, the operating arm 51 of the corresponding side clutch brake 38 is operated against the bias of the spring 52 according to the operation amount. Operation lever 3
No. 6, the side clutch brake 38 corresponding to the operating direction is revealed, and the one crawler type traveling device 1 is allowed to freely rotate, or the side clutch brake 38 corresponding to the operating direction of the operating lever 36 is braked. The state is revealed and a sudden turning state in which one of the crawler type traveling devices 1 is stopped by braking is revealed.

As shown in FIGS. 2, 3 and 10 to 12, the boarding step 58 laid in the boarding operation unit 6 is constructed so that its front end is located rearward of the front end of the control tower 4. As a result, even if the distance from the rear end of the control tower 4 to the front end of the driver's seat 5 is increased and the foot space of the boarding operation unit 6 is widened, the harvesting and conveying device 3 for the planted grain stems 3
When aligning the aircraft, the control tower 4 and boarding step 5
From the space 59 formed between the left front end of 8 and the front end of the harvesting and conveying device 3, the planted culm can be visually observed,
The positional relationship between the planted grain culm and the cutting and conveying device 3 can be easily grasped, and thus the position of the cutting and conveying device 3 with respect to the planted grain culm can be easily aligned.

Further, the space 59 formed between the control tower 4 and the left front end of the boarding step 58 can be effectively used for the ascending / descending path of the reaping and conveying device 3, whereby the space 59 is restricted by the boarding step 58. It is possible to set the upper limit position of the harvesting and conveying device 3 to a higher position, and to perform a smoother up-and-down traveling on steep slopes and step boards without bringing the harvesting and conveying device 3 into contact with the traveling road surface. Therefore, it is possible to easily cross over the ridges and unload the aircraft from the truck bed.

A space 60 formed between the control tower 4 and the right front end of the boarding step 58 is linked to a main clutch (not shown) and a traveling brake 61 (see FIG. 9) installed in the transmission case 50. The operation pedal 62 is provided, and thus, when the operation pedal 62 is provided in the boarding operation unit 6, it is troublesome to form an opening for pedal insertion in the boarding step 58 and the opening thereof. It is possible to save the labor of inserting the operation pedal 62, and thus to facilitate the manufacture.

As shown in FIGS. 13 and 14, the operation pedal 62 is integrally equipped with a locking arm 63 extending toward the front of the boarding operation unit 6, and this locking arm 63 is provided. By engaging with the locking member 64 equipped in the boarding operation unit 6, the operation pedal 62 can be held at the depressed position where the disengaged state of the main clutch and the braking state of the traveling brake 61 are revealed. There is. That is, the running arm 61 and the locking member 64 allow the traveling brake 61 to function as a parking brake.

[Other Embodiments] Other embodiments of the present invention will be listed below. (1) The operation tool 36 may be a front-back swing type operation lever, a left-right swing type operation lever, or a steering wheel. (2) The operation pedal may be one that is linked only to the main clutch or one that is linked only to the traveling brake 61.

[Brief description of drawings]

FIG. 1 Left side view of the whole combine

FIG. 2 is an overall right side view of the combine.

FIG. 3 is an overall plan view of the combine

FIG. 4 is a vertical sectional rear view showing the configuration of a threshing device.

FIG. 5 is a vertical sectional side view of the exhaust straw cutting device.

FIG. 6 (a) is a vertical cross-sectional side view showing the linkage structure of the control lever. (B) A vertical sectional front view showing the linkage structure of the control lever

FIG. 7 is a vertical cross-sectional side view showing a lifting operation structure of the reaping and conveying device.

FIG. 8 is a rear view showing the lifting operation structure of the reaping and conveying device.

FIG. 9 is a vertical sectional rear view of the mission case.

FIG. 10 is a plan view of the first half of the combine.

FIG. 11 is a side view of the boarding operation unit.

FIG. 12 is a right side view of the combine showing a climbing state in which the reaping and conveying device is raised.

FIG. 13 is a side view of the operation pedal.

FIG. 14 is a plan view of an operation pedal.

[Explanation of symbols]

1 traveling device 2 traveling aircraft 3 Mowing and transporting device 4 control tower 6 Boarding operation department 36 controls 58 boarding steps 59 space 60 space 62 Operation pedal P1 fulcrum

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2B074 AA02 AB01 AC02 AD05 AF01                       AG03 BA19 DA01 DA02 DE03                       DE06 DE07                 2B076 AA03 CD02

Claims (3)

[Claims] 1. A reaping and conveying device that moves up and down around a left and right fulcrum set rearward, and a boarding operation unit are arranged side by side on the front of a traveling machine body having a pair of left and right traveling devices. A boarding operation unit structure of a harvesting harvester, wherein a front end of a boarding step laid in the boarding operation unit is provided with an operation tool, as compared with a front end of a control tower erected at the center of the front end of the boarding operation unit. The boarding operation structure of the harvester, which is configured to be located at the rear. 2. A space formed between the control tower and the front end on the side of the cutting and conveying device in the boarding step,
The boarding operation part structure of the harvesting harvester according to claim 1, wherein the boarding operating part is used for an ascending / descending path of the harvesting and conveying device. 3. The harvesting machine according to claim 1 or 2, wherein an operation pedal is arranged in a space formed between the control tower and the front end on the opposite side to the side of the harvesting conveyance device in the boarding step. Boarding operation part structure.