JP2000023506A - Reaping apparatus for combine harvester or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the fitting of a grain culm guide for retaining and guiding separated grain culms and the position adjustment of a direction sensor for controlling straight advancement in a reaping apparatus for a combine harvester, etc. SOLUTION: A front part 4a of a fitting base 4 obtained by forming a beltlike plate into a hollow approximately square shape is detachably fixed to a bush 3 installed at a proper position on the top of a separating pipe 2 for supporting a separating body 1. Each one end of plural sets of wiry grain culm guides 5 for retaining and guiding separated grain culms is fixed to the fitting base 4 and a direction sensor 7 for controlling the straight advancement of a main body 6 by detecting the grain culms is vertically adjustably in position fitted to a rear side part 4b of the fitting base 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting device such as a combine harvester, and more particularly, to a weeding guide for guiding a planted culm weeded by a weeding body backward, and an airframe for detecting a weeded cereal stem. And the like, in which a mounting base for mounting a direction sensor for controlling the linear movement of the vehicle can be attached to and detached from the body.

[0002]

2. Description of the Related Art Planted cereal culm weeded by a herbaceous body is divided into a plurality of sets of cereal stalk guides arranged at the upper and lower positions of a rag belt and the like. A directional sensor that guides backward and detects the culm to be guided and controls the body in a straight line is conventionally provided. In general, the pipes are individually fixed to each other by a mounting metal or the like appropriately fixed to the upper surface position of the pipe.

However, in the case where a plurality of sets of grain stalk guides are arranged on the weeding pipe by the attachment metal or the like, it is very troublesome because it is necessary to separate each set during maintenance or the like. In particular, since the direction sensor is fixed at a fixed height, there is a possibility that problems such as erroneous sensing may occur when the muddy water is covered in work in wetlands or the like.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a receiver 3 provided at an appropriate position on an upper surface of a weeding pipe 2 supporting a weeding body 1 is provided.
A plurality of sets of wire-shaped grain culms for easily fixing and detaching a front part 4a of a mounting base 4 having a band-shaped plate formed in a hollow substantially rectangular shape, and holding and guiding the culms weeded to the mounting base 4. One end of each guide 5 is attached, and
The harvester for combine harvesters is characterized in that a direction sensor 7 for detecting a grain culm and controlling the machine body 6 to move straight is mounted on the rear surface portion 4b so that the vertical position can be adjusted.

[0005]

According to the above construction, in a harvesting device such as a combine harvester, a catch 3 provided at a position near a grain stalk raising case on the upper surface of a grass weeding pipe 2 for supporting a weeding body 1 for weeding planted grain culms.
Then, the front part 4a of the mounting base 4 is screwed so as to be easily removed. A plurality of sets of grain stalk guides 5 for holding and guiding weeded grain stalks rearward by a scraping rug belt or the like are attached to the front face 4a and the upper face of the mounting base 4 with screws or the like, and provided on the rear face 4b. The direction sensor 7 is screwed so that the vertical position can be changed and adjusted by the elongated hole for the mounting screw.

[0006]

As described above, in a harvesting device such as a combine harvester, a plurality of sets of grain stalk guides 5 are attached to a mounting base 4 which is easily fixed to a receiver 3 of a weeding pipe 2, and a direction sensor 7 is provided. When the direction sensor 7 is covered with muddy water due to a wetland or the like, the mounting position can be easily changed upward by a long hole for a mounting screw. Thus, it is possible to secure the performance at the time of straight-ahead control by preventing troubles due to the above-mentioned problems.

At the time of maintenance or the like, a plurality of sets of grain stalk guides 5 and direction sensors 7 are provided by the mounting base 4.
Etc. can be collectively removed at the same time, which improves convenience.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 15 shows the entire structure of the combine, in which a traveling device 10 having a pair of left and right traveling rollers 9 traveling on the soil surface is provided below the chassis 8, and a filter is provided on the chassis 8. A grain tank 12 for threshing the harvested culm supplied by being pinched and conveyed to the chain 11, and for selectively collecting the threshed kernels and temporarily storing them, and transferring the kernels stored in the tank 12 to the outside of the machine. A threshing device 13 having a dumping auger 12a for discharging is mounted.

In front of the threshing device 13, a weeding body 1 supported by a weeding rod 1a for weeding the planted grain culm from the front end side, a raising part 14 for raising the weeded grain culm, and a raising part 14 A cutting blade section 15 for cutting the cut culm, a stock collecting section 16 for transferring the cut culm to the rear and transferring the cut culm to the feed chain 11, and a head collecting section 17. A cutting device 18 that cuts a row of grain culms, for example, five rows, is moved up and down on the soil surface by a hydraulically driven cutting cylinder 19.
And mounted on the front end of

An operation device 20 for controlling the operation of the combine is provided on one side of the reaper 18 and an operation seat 2 for this operation.
1, the engine 22 is mounted below the operation seat 21, the Glen tank 12 is arranged on the rear side, and a cabin 23 that covers the operation device 20 and the operation seat 21 is provided. . The body 6 is constituted by the traveling device 10, the threshing device 13, the reaper 18, the operating device 20, the engine 22, the cabin 23, and the like.

FIG. 3 shows the construction of the mowing device 18 and the transmission path.
7 to FIG. A laterally mounted cutting input case 28 is rotatably supported on a cutting stand 27 fixed to the upper end of the traveling transmission case 26, and the input case 28 and a pipe-shaped cutting main frame 29 extending forward and downward. And a cutting input shaft 31 having a cutting input pulley 30 fixed at one end to the input case 28 and internally supporting the cutting input shaft 31. The input shaft 31 and a cutting main shaft 32 mounted on the main frame 29 are connected to each other. It is constituted by interlocking connection via bevel gear.

The cutting main frame 29 is joined to a lower lateral transmission case 33 provided at the lower part of the cutting device 18 over the entire width thereof, and a lower horizontal shaft 34 provided inside the lower lateral transmission case 33. And the reaping main shaft 32 are connected to each other via a bevel gear, and an intermediate vertical frame 35 is extended from the vicinity of the left end of the lower horizontal transmission case 33 obliquely upward and forward. The intermediate vertical axis 36 and the lower horizontal axis 34 are linked and connected via a bevel gear.

The intermediate vertical frame 35 and an upper horizontal transmission case 37 provided over the reaper 18 over the entire width thereof are joined via a transmission case 38 by a gear shift. In addition to passing through a bevel gear and a belt clutch 39, the left end of an upper horizontal shaft 40 housed in an upper horizontal transmission case 37 is interlockingly connected via a gear of the transmission case 38.

Five raising drives corresponding to the raising portions 14 for raising five rows of planted grain culms joined by the upper horizontal transmission case 37 with one center and two left and right sides. Case 4
1 is projected downward, and the respective raising drive shafts 42 mounted in the raising driving case 41 and the upper horizontal shaft 40 are connected to each other via bevel gears in an interlocking manner.
And a raising shaft 44 on which a raising sprocket 43 for driving a raising chain 43b to which a raising lug 43a is attached is interlocked and connected via a bevel gear.

The right stock feeder chain of the stock feeder 16 for feeding the culm stock feeder side to the right stocker feeder shaft 45a, which has been set up from a middle portion of the cutting spindle 32 via a bevel gear. 24
a right chain drive sprocket 46a for driving the right chain drive sprocket 46a, and a right chain driven sprocket 47 fixed to a right main raking shaft 48a located on the front end side of the right stock feed chain 24a.
The right main rug pulley 51a for driving the right main rug belt 50a for driving the right main rug belt 50a for driving the right main rug belt 50a for driving the right main rug belt 50a for driving the right side of the grain stem side on the upper side of the lower wheel a is formed.

The right driven star wheel 52 which rakes the grain stem by the meshing drive with the right rake star wheel 49a.
a, and a right sub-lag pulley 54a for driving a pair of right sub-lag belts 53a opposite to each other by opening an end portion thereof in an eight-letter shape with respect to the right main lag belt 50a is configured to be fixed to the right sub-screw shaft 55a. An intermediate shaft 56 is protruded from the middle of the right stock former collecting and feeding shaft 45a via a bevel gear, and the adjusting depth of the grain stalk is adjusted by an adjusting shaft 57 which is raised from the intermediate shaft 56 via a bevel gear. Therefore, an adjusting sprocket 59 for driving a stock adjusting chain 58 that conveys the stock side is axially stopped, and the stock adjusting chain 58 is configured to be able to move up and down on the rear side with the front side as a fulcrum.

A left collecting drive shaft 60 protruding laterally from the intermediate portion of the intermediate longitudinal axis 36 via a bevel gear, and a left stock former collecting shaft 45c further raised via a bevel gear.
The left chain drive sprocket 4 for driving the left stock feed chain 24c of the stock feeder 16 for feeding the grain stem stock side.
6c, and the left spike feed lug 25 of the spike collection section 17 disposed above the left stock feed chain 24c.
The left lug drive sprocket 62c for driving the left ear chain 61c to which the c is attached is fixed to the shaft.

A left scraping star wheel 49c is provided below the left chain driven sprocket 47c fixed to a left main scraping shaft 48c located at the front end side of the left stock feeding chain 24c, and a grain stem stock side is provided above. The left main lag pulley 51c that drives the left main lag belt 50c that scrapes the left main lag belt 50c is configured to be fixed to each shaft. The left driven star wheel 52c, which rakes the grain stem in opposition by the meshing drive with the left rake star wheel 49c, and a pair of left auxiliary rug belts 53c, each of which has a front end opened in an octagonal shape with respect to the left main rug belt 50c. Driving left auxiliary lug pulley 5
4c and the left auxiliary raking shaft 55c.

From the left driven star wheel 52c, the middle driven star wheel 52b is further meshed and driven, and the grain culm root side is collected and fed to the middle raking shaft 48b on which the middle driven star wheel 52b is fixed. Medium stock feed chain 24
b, and a middle lug pulley 51b that drives a middle lug belt 50b that rubs the grain stem side on one side above the middle chain drive sprocket 46b. .

The middle chain driven sprocket 4 is mounted on the middle stock former feed shaft 45b located at the rear end of the middle stock former feed chain 24b.
7b, and the spike collection lug 25b disposed above the spike feed chain 24b.
The middle lug drive sprocket 62b for driving the middle ear chain 61b to which is attached is fixed to the shaft. The right spike feed lug 25a of the spike collection unit 17 is attached to the conveyance shaft 63 that is raised from the other end of the cutting input shaft 31 via a bevel gear.
The short culm chain sprocket for driving the right lag drive sprocket 62a for driving the right ear nose chain 61a with the shaft attached thereto and for driving the short culm chain 64 acting on the lower side of the right lag drive sprocket 62a when the grain culm is short. 65
Is fixed to the shaft.

A lower frame 66 in which left and right support arms 66a are joined to left and right ends of the lower lateral transmission case 33, respectively.
Weeding pipe 2 in which the weeding rod 1a of each weeding body 1 is inserted and fixed on the upper surface of the lower frame 66.
The cutting edge 15 is divided into right and left parts over the entire width of the cutting device 18 and attached to the lower frame 66 under the weeding pipe 2.

The left and right cutting blades 15 are respectively provided on the receiving blade support plate 1.
The blades 15 are fixed to the blades 15a fixed to the blades 5a.
c is fixed to the receiving blade supporting plate 15a.
And a plurality of blade holders 15e so as to be slidable left and right. The cutting blade 15 is driven by connecting the left and right connecting rods 67 fixed to the left and right ends of the lower horizontal shaft 34, respectively.
Of the lower frame 66 and the left and right support arms 66
The drive rollers 69a, which are pin-connected to one end of left and right drive arms 69 supported on left and right support metals 68 provided at the joints of FIG. The left and right cutting blade driving metals 70 provided on the blade bar 15c are loosely fitted and supported so that they can reciprocate left and right, thereby constituting the left and right crank mechanisms A.

As shown in FIGS. 1 and 2, each weeding pipe 2 extending forward from the lower frame 66 for five-row cutting is provided.
At the front end of the buckle, the right and left sides are bent rearward and the U-shaped receivers 3 each having a U-shape in plan view are fixed to each other. A front surface portion 4a of a mounting base 4 which is hollow and formed in a substantially rectangular shape in side view, and an extension portion 4e obtained by appropriately extending the front surface portion 4a downward are attached by screws 71a and 71b, respectively.

On the screw 71b side, a mounting flange 1b fixed to the vicinity of the rear end of the weeding rod 1a fitted and supported on the front end of the weeding pipe 2 is fastened together with the receiving base 3 and the mounting base 4. Attach and configure. The upper portion 5a of the grain stalk guide provided on the upper surface side of each of the main and sub rug belts 50 and 53 for holding and guiding the culled grain stalk is attached to the front portion 4 of the mounting base 4.
a and the receiving metal 3 by means of screws 71a together with the rug belt 5 on the upper surface 4c of the mounting base 4.
The lower part 5b of the cereal stalk guide disposed on the lower side of
1c, and each of the scraping and driven star wheels 49, 5 is directed rearward from the back side of the front surface 4a of the mounting base 4.
A cereal stalk guide 5c for guiding the cereal stalk is arranged at 2 and configured.

An elongated hole a for screwing is provided in a rear surface portion 4b of the mounting base 4 attached to the receiver 3 of the second weeding pipe 2 from the left, and the elongated hole a serves as a direction sensor 7. A right direction sensor 72a having a right detection rod R of the cutting direction sensor 72 and a left direction sensor 72b having a left detection rod L are attached at front and rear positions so as to be vertically adjustable by screws 71d.

The traveling device 10 is provided by bringing the weeds 1 close to the soil surface.
The body 6 is moved forward to cut the planted grain culm by the reaping device 18, and at the time of this reaping, the five rows of cereal culms of one center and two on each side are raised to the left, the middle, and the right. Part 1
4 and at the same time, the stock side is scraped by the left, middle, and right main rug belts and the sub rug belts 50 and 53, and the scraped stock side is scraped and driven by a star wheel 49. , 52, and at the same time, the mowing by the cutting blade portion 15.

The cut roots are collected and conveyed by the left, middle, and right root feed chains 24, and are passed from the junction to the root adjustment chain 58, and the handling depth is adjusted by the threshing device 13. Is carried out, and the spike side is collected by the left, middle, and right spike feed lugs 25 and merges with the middle position of the right spike advance lug 25a. It is transported and supplied to the threshing device 13.

In the mowing device 18 for performing such a mowing operation, the mounting base 4 is easily attached to and detached from the catch 3 of the weeding pipe 2 together with the weeding rod 1a, and the rear surface 4b of the mounting base 4 is attached. The mounting position of the cutting direction sensor 72 can be freely changed up and down by the screw 71d by means of the long hole a provided at the upper side. By doing so, problems such as erroneous sensing can be prevented, and good performance can be maintained.

At the time of maintenance or the like, the screws 71a, 71b for attaching the mounting base 4 to
The upper part 5a of the grain stalk guide attached to the front side 4a of the mounting base 4 and the grain stalk guide 5c attached to the back side, and the lower part of the grain stalk guide 5b attached to the upper face part 4c only by removing the two of the above. Since the direction sensor 72 attached to the rear surface portion 4b can be collectively detached, the convenience can be improved by greatly reducing labor.

As shown in FIG. 8, a harness 73 of the right direction sensor 72a and the left direction sensor 72b of the cutting direction sensor 72 is arranged at appropriate positions on the upper surface 4c and the lower surface 4d of the mounting base 4. And a routing hole 73b for routing the harness 73 into the pipe at the front end side upper surface of the weeding pipe 2, and the harness 73 is automatically set by the routing holes 73a and 73b. It is configured to be able to be routed to a control controller or the like.

According to such a configuration, the harness 73 can be routed along a safe route which is short and hard to receive an obstacle from outside. Thus, it is possible to stably maintain the straight traveling control of the body 6 by the direction sensor 72. As shown in FIGS. 9 and 10, the third weeding pipe 2 from the left among the weeding pipes 2 that perform the five-row cutting is a ground contact portion with respect to the soil surface more than the other weeding pipes 2. It is located above and has a certain space b between it and the soil surface.

At the position in contact with the left side surface of the weeding pipe 2 having a space b with respect to the soil surface, a flat mounting partition plate 7 is provided.
4a is raised and fixed, and a cutting height sensor for transmitting a ultrasonic wave toward the soil surface and receiving a reflected wave to detect a cutting height on the left side surface without obstacle below the mounting partition plate 74a. 7
4 to be configured. With such a configuration, even when the planted cereal stalk is in a lying state and is raised at a low speed, the weeding pipe 2 is provided with a space b with respect to the soil surface to allow the culm to be freely pushed down. Can be prevented, and since there is no culm to be pushed down, troubles such as erroneous sensing of the cutting height sensor 74 due to hindrance of the culm can be prevented.

The weeding pipe 2 is provided by providing only the weeding pipes 2 at the left and right ends with the function of preventing the weeding pipe 2 from penetrating into the soil surface as in the prior art, and the remaining weeding pipes 2 are all provided with the space b. Thus, the effect of preventing the culm from being pushed down can be further improved. As shown in FIGS. 10 and 11, the right stock feed chain 24a and the left stock feed chain 2a are used.
4c are arranged at parallel intervals of a fixed distance, and the left stock former feed chain 24 at this junction c.
A substantially L-shaped upper conveyance guide 75a and a lower conveyance guide 75b that guide the conveyance culm in a form sandwiching the left guiding roller 75 at the c-terminal from the upper surface and the lower surface are provided. Reference numeral 76 denotes a right guide roller at the end of the right stock feed chain 24a that is opposed to the left stock feed chain 24c.

With such a configuration, the stalks of the grain stalk are fed from the junction c of the right stock feed chain 24a and the left stock feed chain 24c to the stock control chain 58 for adjusting the supply depth to the threshing device 13. The takeover can be performed smoothly, and spilling of the culm and displacement of the plant can be prevented. In addition, at the left and right ends of the lower frame 66, the fixing bolts 77 that can be fixed in a one-point rotation mode for attaching the cutting blade 15 are conventionally arranged as shown in FIGS. In the present invention, the outermost end of the weeding pipe 2 is disposed on the outer surface of the weeding pipe 2 at the left and right ends located inside the outermost end on the left and right sides of the lower frame 66, as shown in FIGS. To be configured.

With such a configuration, when the reaper 18 comes into contact with an obstacle such as a concrete ridge during operation, the fixing bolt 77 provided at the left and right outermost ends of the cutting blade 15 is conventionally provided. The fixing bolt 77 is retracted to the outer surface position of the weeding pipe 2 at the left and right ends, so that the head of the bolt 77 may be damaged even if it comes into contact with an obstacle such as a ridge. Is not damaged, and maintenance is easy to maintain.

[Brief description of the drawings]

FIG. 1 is a side view showing a mounting base fixed on a weeding pipe behind a weeding body of a reaper.

FIG. 2 is an enlarged perspective view showing a state in which an attachment base is fixed to a receiving pipe of the weeding pipe.

FIG. 3 is a plan view showing a collection mechanism mainly including a grain stem side of a mowing device.

FIG. 4 is a plan view showing a collecting mechanism mainly including a grain culm tip side of a mowing device.

FIG. 5 is a side view showing the overall configuration of the reaper.

FIG. 6 is a plan view showing the entire configuration of a cutting blade portion of the cutting device.

FIG. 7 is a transmission path diagram showing a power transmission path of the reaper.

FIG. 8 is a side view showing a wiring state of a harness of the direction sensor attached to the attachment base.

FIG. 9 is a side view showing a state in which a cutting height sensor is provided by partially floating the weeding pipe from the soil surface.

FIG. 10 is a plan view showing a state of upper and lower transport guides of a left and right stock feed chain merging portion.

FIG. 11 is a side view showing a cross section of the upper and lower transport guides of the left and right stock feed chain merging portions.

FIG. 12 is a front sectional view showing a state in which fixing bolts are attached to both left and right ends of a conventional cutting blade part.

FIG. 13 is a plan view showing a state in which fixing bolts are attached to both left and right end portions of the cutting blade portion of the present invention.

FIG. 14 is a front cross-sectional view showing a state where fixing bolts are attached to both left and right ends of the cutting blade portion of the present invention.

FIG. 15 is a side view showing the entire configuration of the combine.

[Explanation of symbols]

 1. Anchored body 2. Weeding pipe 3. Receipt 4. Mounting base 4a. Front part 4b. Rear part 5. Grain stalk guide 6. Airframe 7. Direction sensor

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2B043 AA04 AB07 AB12 AB13 BA02 BA05 BB14 EA26 EB02 EB07 EB12 EB13 EB25 EB27 2B081 AA01 CC25 CC53 DA01 DA18 EB03 EB06 EB11 EE03 EE07 EE13 EG03 EG07

Claims (1)

[Claims] 1. A front part 4a of a mounting base 4 having a hollow, substantially rectangular band-shaped plate is easily fixed to a receiving metal 3 provided at an appropriate position on an upper surface of a weeding pipe 2 supporting a weeding body 1. Then, one end of each of a plurality of sets of wire-like grain stalk guides 5 for holding and guiding the weeded grain stalks on the mounting base 4 is attached, and the grain stalks are detected on the rear surface 4b of the mounting base 4. A combine harvester, wherein a direction sensor 7 for controlling the body 6 to move in a straight line is mounted so as to be vertically adjustable.