JPH09107784A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a combine harvester to smoothly continue its working by preventing invasion of dust, keeping an environment of an operation part under a hygienic condition and preventing generation of clogging in a threshing chamber. SOLUTION: This combine harvester combinedly provides a thresher 2 and a grain storing device at right and left above a running vehicle 1. An operation part 4 is provided at forward the grain storing device. A reaping-carrying device 5 is provided forward the thresher 2 in rising and lowering free. A suction port 6 sucking dust generated from the reaping-carrying device 5 together with outer air is opened in front of the thresher. A sucking and blowing device blowing the outer air sucked at the suction port 6 into a threshing chamber of the thresher 2 and accelerating leak down of the materials to be treated from the threshing chamber into a below selecting chamber is also provided in the combine harvester.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a combine harvester.

[0002]

2. Description of the Related Art Conventionally, a combine has a threshing device and a grain storage device arranged side by side above a traveling device, and a control section is arranged in front of the grain storage device. The reaping and conveying device is provided so as to be vertically movable. In other words, the layout is such that the harvested grain culm transport path of the harvesting transport device is located near the side of the control unit on which the operator is aboard.

Mowing work by such a combine is
First, after the grain culms to be planted in the field are cut by the reaping / conveying device, they are conveyed so as to be supplied to the rear threshing device. Then, the cut culm supplied to the threshing device is subjected to threshing treatment by the action of the handling barrel while being fed later in the handling room, and the treated straw is discharged outside the machine by the straw transporting device.
In addition, among the mixed objects such as grains and straw scraps generated by the threshing process in the handling room, those that pass through the meshes of the nets provided around the lower side of the handling room are installed in the lower sorting room. It leaks to the sorting shelf. Then, the processed material leaked to the sorting rack is subjected to the swing sorting by the sorting rack and the wind sorting by the Karafu style, and the fine grains are collected into the first spiral and temporarily stored in the grain storage device. . The branch-bedding-attached particles, straw waste, and the like collected in the second spiral are returned to the front of the handling room or the front of the selection shelf so as to be reprocessed or re-sorted.

[0004]

However, during the above-mentioned mowing work, a large amount of dust is generated not only when the planted grain culms are mowed by the mowing transport device, but also when the mowed grain culms are transported. Floats and spreads around. Therefore, a large amount of dust invades the control section located near the side of the harvested culm transfer route of the reaping and transfer apparatus, resulting in a remarkably unsanitary environment for an operator boarding the control section. Of.

Further, the object to be treated generated in the handling chamber cannot leak to the sorting chamber below unless it passes through the meshes of the receiving nets provided around the lower side of the handling chamber. When the amount of generation is too large, or when the object to be treated is moist, leakage may be obstructed, clogging may occur in the handling room, and work may not be continued.

[0006]

The present invention employs the following technical means to solve the above-mentioned problems. That is, the threshing device 2 and the grain storage device 3 are arranged side by side above the traveling device 1, the control unit 4 is arranged in front of the grain storage device 3, and in front of the threshing device 2. In the combine configured by vertically elevating the mowing and conveying device 5, a suction port 6 for sucking dust generated from the mowing and conveying device 5 together with the outside air is opened at the front part of the threshing device 2, and the suction port 6 A suction blower device 9 is provided to blow outside air sucked from the inside of the threshing device 2 into the handling chamber 7 to promote leakage of an object to be processed from the handling chamber 7 to the sorting chamber 8 below. It is a combine harvester.

[0007]

The harvesting work by the combine is performed by the control unit 4
By operating a traveling device 1 by driving an operator aboard the vehicle, the grain culms to be planted in the field are cut by the reaping / conveying device 5 and conveyed so as to be supplied to the rear threshing device 2. At this time, the dust generated from the harvesting and conveying device 5 is
The suction blower 9 sucks the air together with the outside air from the suction port 6 provided in the front part of the threshing device 2.

[0008] Then, the cut grain culm supplied to the threshing device 2 is subjected to threshing treatment in the handling room 7, and the object to be treated thereby leaks to the lower sorting room 8. At this time, the suction blower 9 blows air into the handling chamber 7 to promote the leakage of the object to be processed from the handling chamber 7 to the lower sorting chamber 8. The object to be processed that has leaked into the sorting chamber 8 is subjected to the sorting action, and the refined grains are temporarily stored in the grain storage device 3.

[0009]

As described above, since the dust generated from the cutting and conveying device 5 is sucked by the suction blower 9 together with the outside air from the suction port 6 provided in the front part of the threshing device 2, it enters the control portion 4. Therefore, it is possible to keep the environment of the worker who rides on the control section 4 hygienic.

Further, since the suction blower 9 blows air into the handling chamber 7 to promote the leakage of the processed substance from the handling chamber 7 to the lower sorting chamber 8, the amount of the processed substance generated is excessive. Even if the material becomes unclean or the object to be processed is moist, the leakage is not obstructed, the occurrence of clogging in the handling room 7 is prevented, and the work can be continued smoothly. it can.

[0011]

EXAMPLE An example of the present invention will be described. The combine fuselage is equipped with a threshing device 2 and a grain storage device 3 arranged side by side on a vehicle body frame 10 having a traveling device 1 of an endless track type at the bottom, and the grain is also installed. It is mounted so as to arrange the control unit 4 in front of the grain storage device 3, and further,
In front of the threshing device 2, a mowing and conveying device 5 is provided so as to be vertically movable.

[0012] Therefore, the traveling device 1 has a driving wheel 11, a group of rolling wheels 12 and a tensioning wheel 13 arranged from the front,
It is configured such that the crawler 14 is turned around and the driving wheels 11 are driven in the forward and reverse directions by the driving force of an engine 15 mounted on the vehicle body frame 10 to run. Further, the control section 4 is provided with a shift lever-1 for shifting the traveling device 1 forward and backward.
6, a steering lever 17 for steering the airframe by braking one of the left and right of the traveling device 1, a cutting clutch lever 18 for turning on and off the transmission of the driving force of the engine 15 to the cutting and conveying device 5, Threshing clutch lever 19 for turning on / off transmission of driving force of the engine 15 to the threshing device 2, seat 2
0, a handle 21, a back mirror 22 and the like are provided.

Further, the grain storage device 3 is formed in a box shape, and a discharge auger 23 for discharging the grain stored inside.
Is provided so that it can be turned by an electric motor (not shown) and can be moved up and down by a hydraulic cylinder 24. Then, in the cutting and conveying device 5, a plurality of weeding devices 25 for weeding the planted culms, a plurality of raising devices 26 for causing the planted culms weeded by the weeding device 25, and the raising device. Multiple scraping devices 2 for scraping planted culms caused by 26
7, a cutting blade device 28 for cutting the root part of the planted grain culm scraped by the scraping device 27, a plane for conveying the cut grain culm of which the root part has been cut by the cutting blade device 28 to the rear The front transfer device 29 having a C-shape and the harvested culm transferred by the front transfer device 29 are taken over and further transferred to the feed chain 30 provided in the threshing device 2. A supply / conveyance device 31 is provided. With this configuration, the plurality of raising devices 26 are
The threshing device 2 and the control part 4 are arranged at appropriate intervals in the left-right direction so as to be overlapped with each other, while the supply / conveyance device 31 is arranged near the side part of the control part 4. still,
Reference numeral 32 denotes a side dust-proof cover that covers the outer side of the harvesting and conveying device 5.

The threshing device 2 is provided with an upper handling chamber 7
And the sorting room 8 below. The handling chamber 7 is formed in a box shape, and is provided with a holding and conveying device composed of the feed chain 30 and the slinging rod 33 on the side thereof, and the inside thereof has a large number of handling teeth on the outer peripheral surface. A handling cylinder 35 having 34 is provided so as to be rotatably driven around a horizontal axis in the longitudinal direction of the machine by a drive gear case 36 provided on the rear side wall.
5, a receiving net 37 is stretched along the lower side of the outer peripheral portion. By the handling barrel 35, of the harvested culm, which is conveyed backward with the stocker side being held by the holding and conveying device,
The tip end side inserted into the handling chamber 7 from the supply port 38 is handled. The drive gear case 36 is configured to transmit the drive force from the engine 15 when the threshing clutch lever 19 is operated.

The upper wall 39 of the handling chamber 7 is formed in the shape of a perforated plate (perforated plate), and the upper side of the upper wall 39 is covered with a suction case 40. The suction case 40 expands toward the front, and the front end portion is opened above the supply port 38 to form the suction port 6. A safety net 4 is provided at the suction port 6.
1 is set. Then, the upper wall 39 and the suction case 40
The propeller fan 42 is installed in the space formed between
Place. The fan 42 is attached to the lower end of a vertical rotating shaft 43, and the upper end of the rotating shaft 43 protrudes above the suction case 40, and an input pulley 44 is attached to the protruding end. Then, the input pulley 44 and the output pulley 46 provided at the upper end of the first fried helix shaft 45 described later.
Pass the power transmission belt 47 over the
The tension is applied to the transmission belt 47 by the re-48.
The input pulley 44, the output pulley 46, the transmission belt 47, and the tension pulley 48 are covered with a transmission case 49. The suction blower 9 is configured as described above.

Further, in the sorting chamber 8, there is a swing shelf for receiving an object to be processed leaking from the receiving net 37 of the handling chamber 7 and sorting while swinging and transferring it backward, and below the swing shelf. In which the sorting wind is blown backward, the No. 1 transverse feed spiral which collects the grains leaking from the rocking rack behind the Karako, and the rocking rack behind the No. 1 horizontal feed spiral. A No. 2 transverse feed spiral is provided to collect the processing objects such as the spilled branches and attached particles of straw. Then, at the transport end portion of the No. 1 horizontal feed spiral, the No. 1 deep-fried food spiral shaft 45 for lifting the grain collected by the No. 1 horizontal feed spiral and feeding it into the grain storage device 3 is provided. The lower end is connected and connected. The above 2
The lower end of the No. 2 reduction spiral for returning the object to be processed collected by the No. 2 transverse spiral to the inside of the handling chamber 7 or the front part of the sorting rack is connected to the transport end of the No. transverse spiral. Set up.

Reference numeral 50 denotes an straw cutter for cutting and discharging the straw supplied from the feed chain 30 via the straw conveying device. Next, the operation will be described. In the combine operation, the harvesting conveyor lever 5 and the threshing clutch lever 19 are operated by being turned on and off.
And the threshing device 2 is driven, the shift lever 16 is operated to the forward side, and the traveling device 1 is driven forward. With this, while the machine body is traveling forward, the grain culms to be planted in the field are weeded by the weeding device 25, the grain culms after weeding are raised by the raising device 26, and the grain culms after the raising are scraped. While scraping with the device 27, the stock root part is cut with the cutting blade device 28. The grain culm cut in this way is fed to the front transport device 2
Then, the paper is sent to the feed chain 30 via the feeding / conveying device 31. The harvested grain culm, which has been taken over by the feed chain 30, has its tip end side supplied from the supply port 38 to the handling room 7.
After being fed in the state of being inserted into the inside, while being processed by the action of the handling teeth 34 due to the rotation of the handling cylinder 35, among the objects to be processed which pass through the mesh of the receiving net 37, It leaks to the lower sorting shelf. Then, the object to be treated that has leaked to the sorting shelf leaks while being fed later on the rocking shelf, and is also subjected to wind sorting by Karafu wind, and the grain is collected into the first horizontal feed spiral. It is thrown into the grain storage device 3 by the rotation of the No. 1 fried grain helix shaft 45, and 2 pieces of branch stem adhering grains etc.
It is collected by the No. lateral feed spiral and returned to the handling chamber 7 or the front of the rocking rack by the No. 2 reduction spiral for reprocessing.

During the above work, the fan 42 is interlocked with the drive of the threshing device 2 through the first hoisting spiral shaft 45, the output pulley 46, the transmission belt 47, the input pulley 44, and the rotating shaft 43.
Rotates. As a result, the dust generated during the transportation of the harvested culm in the harvesting and conveying device 5 is sucked into the suction case 40 through the safety net 41 from the suction port 6 together with the outside air, and this outside air is absorbed by the upper wall 39. Ejects downward from the hole. The air blown into the handling chamber 7 by the fan 42 causes the atmospheric pressure in the handling chamber 7 to increase, so that the object to be processed generated in the handling chamber 7 is pushed outward from the mesh of the receiving net 37, that is, downward. The force acts to promote the leakage of the material to be processed into the lower sorting chamber 8.

As described above, since the dust generated from the cutting and conveying device 5 is sucked through the suction port 6 together with the outside air, the dust does not enter the control section 4 and the environment of the operator who rides on the control section 4 does not occur. Can be kept hygienic. Also,
The blowing of air into the handling room 7 promotes the leakage of the processing target from the handling room 7 to the sorting chamber 8 below, so that when the amount of the processing target becomes excessive or Even when the object is wet, the leakage is not hindered, the occurrence of clogging in the handling chamber 7 is prevented, and the work can be smoothly continued.

As another embodiment, the fan 51 is constructed as a screw type, and the fan 51 is provided with a rotary shaft 52 in the front-rear direction.
Attached to the front end of the suction shaft 40, and the rear end of the rotary shaft 52 protrudes rearward from the suction case 40 to provide an input force to the protruding end.
Re-attach 53. Then, the transmission belt 55 is wound around the input pulley 53 and the output pulley 54 provided on the handling barrel shaft driven by the drive gear case 36. The above constitutes another embodiment of the suction blower 9.

Further, as another embodiment, the upper wall 39 of the handling chamber 7 is formed in an arc shape along the upper outer peripheral portion of the handling barrel 35, and a blower hole 56 is formed along the rotation direction of the handling barrel 35. It may be done. With this configuration, the suction blower 9 blows air into the handling chamber 7,
A stirring action is given to the object to be processed generated in the handling chamber 7, and the action of pushing outward from the mesh of the receiving net 37 is smoothed, so that the object to be processed leaks to the lower sorting chamber 8 more effectively. Be promoted.

Further, as another embodiment, the fan 57 is constructed in the form of radiating blades, and the fan 57 is arranged in the left-right rotating shaft 5.
8, the other end of the rotary shaft 58 projects toward the inside of the body from the suction case 40, and an input pulley 59 is attached to the projecting end. Then, the input pulley 59
Then, the transmission belt 62 is wound around the output pulley 61 provided on the rotary shaft of the Karako 60. Also, the suction case 4
The front part of 0 is branched from both sides of the fan 57 in two directions, one is extended to the reaping and conveying device 5 side, the other is extended to the control part 4 side, and the suction port 6 is provided at each extended end. , 6 are opened. The above constitutes another embodiment of the suction blower 9. With this configuration, not only the dust generated from the cutting and conveying device 5 but also the dust that has already entered the vicinity of the control section 4 or the dust that is about to enter the control section 4 from another location by the suction blower device 9 The suction can be performed, and the environment of the control unit 4 can be maintained more hygienic.

[Brief description of the drawings]

FIG. 1 is a side view of a combine showing a first embodiment of the present invention.

FIG. 2 is a side view showing a main portion of the first embodiment of the present invention partially broken away.

FIG. 3 is a plan view showing a main portion of the first embodiment of the present invention with a part thereof cut away.

FIG. 4 is a side view of the combine according to the second embodiment of the present invention.

FIG. 5 is a side view showing a main portion of a second embodiment of the present invention partially broken away.

FIG. 6 is a plan view showing a main portion of a second embodiment of the present invention with a part thereof broken away.

FIG. 7 is a front view showing a main portion of a second embodiment of the present invention in a cutaway manner.

FIG. 8 is a plan view and a front view showing a part of a second embodiment of the present invention.

FIG. 9 is a side view of the combine according to the third embodiment of the present invention.

FIG. 10 is a side view showing a main portion of a third embodiment of the present invention partially broken away.

FIG. 11 is a plan view showing the main part of the third embodiment of the present invention with a part thereof broken away.

[Explanation of symbols]

 1 Traveling device 2 Threshing device 3 Grain storage device 4 Control part 5 Mowing and conveying device 6 Suction port 7 Handling room 8 Sorting room 9 Suction blower

Claims (1)

[Claims] 1. A threshing device 2 and a grain storage device 3 are arranged side by side above a traveling device 1, and the grain storage device 3 is provided.
In the combine that is configured by disposing the control unit 4 in front of the threshing device 2 and provided in the front of the threshing device 2 so as to be able to move up and down, in the front part of the threshing device 2, The suction port 6 for sucking the generated dust together with the outside air is opened, and the outside air sucked from the suction port 6 is blown into the handling chamber 7 of the threshing device 2 to transfer the dust from the handling chamber 7 to the sorting chamber 8 below. A combine, comprising a suction blower 9 for promoting leakage of an object to be processed.