JPS61202620A - Stalk guide apparatus in combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

(a) Industrial Application Field The present invention relates to a grain culm guiding device in a combine harvester for reaping and threshing grain culms. (b) Prior Art It is already known that as a grain guiding device in a conventional combine harvester, a guide plate is attached to the top of a stalk raking device installed above a cutting blade to guide the grain tip. (c) Problems to be solved by the invention The lower part of the known guide plate for guiding the panicle was attached to the top of the stem raking body, and the guide plate was supported only by the stem raking body. Therefore, the guide plate and the stem scraper are supported only by the base of the guide, which is unstable, and generates large vibrations and noise. In order to solve these problems, increasing the strength of the stem scraper resulted in a significant increase in weight and cost. Further, if the guide plate is omitted, there is a problem that the ears intersect, resulting in clogging during transition from horizontal conveyance to vertical conveyance. (d) Means for solving the problem The present invention provides a cutting blade 14 and a raking device at the rear of the lifting body,
In a combine harvester in which the end of the raking path is connected to a cross-feeding path and the grain culms that have been traversed are conveyed toward a rear threshing device by a vertical conveyance device, the stem raking body of the raking device is A guide plate is installed above the cutting blade and has a triangular shape in a side view between the top of the stem scraping body and the back surface of the raising body, and guides the stem. The lower part of the plate is attached along the top of the stem raking body, and the upper inclined part is attached to the back surface of the raising body so that the lower transmission part, the stem raking body, the guide plate, and the raising body are connected. are integrated, thereby significantly reducing vibration and noise, making it possible to reduce the size of the driving part of the stem part scraper, reducing weight and cost, and furthermore, the guide plate prevents the stem part from crossing over. Solved the problems mentioned above. (e) The grain culm raised by the action-raising body is cut off at the base by the cutting blade, is raked backward by the stock base raking body and the stem part raking body, and is then traversed along the traversing path. After that, the grains are conveyed and supplied to the rear threshing device by a vertical conveying device, where they are threshed. The raking device locks the reaped grain culm without rotating and rakes it backwards, so it vibrates and generates noise, but the stem raking body of the raking device has its base connected to the transmission part. , the lower part of the guide plate runs along and is attached to the top of the stem scraping body, and the sloped part forming the upper surface of the guide plate is attached to overlap with the back surface of the trigger body, so that the trigger body and The guide plate, the stem part raising body, and the reaping frame form an integral truss shape, and the upper part of the stem part raising body is supported by the raising body through the guide plate, so the noise and vibration are extremely small. Become. In addition, since the ridges of the grain culms into which 1 gk are fed are guided by the guide plate, they do not cross over, bend, or get caught on other members and shed the grains. (F) Embodiment To explain an embodiment of the present invention with reference to the drawings, l is a self-described threshing device mounted on a machine base 3 having a traveling device 2, and on the other side, an operation panel is arranged sequentially from the front. 4. There is a cockpit 5, an engine E is installed below it, and a grain tank etc. are arranged at the rear, and in front there are a plurality of split plants 7, 8, and 8.
..., Grain culm lifting device 9, raking wheel 10..., Stock holder raking chain 11, Stem raking belt with lug! 2..., a reaping device consisting of a stem scraping chino 13 with scraping claws, a cutting blade 14, a horizontal conveying chino 15, etc. is provided, and a vertical conveying device 1B is provided from one side of the reaping device toward the rear and upper side. A lifting device is provided between the terminal end of the vertical conveying device 18 and the supply section of the threshing device 1, and the lifting device includes a stock head lifting device 17 and a ear side lifting device 18 arranged in parallel. It is. Next, the configuration of each part of the five-row mowing type combine harvester will be explained in detail. [Reaping device] As shown in FIG. 1, the grain culm pulling device 9 consists of two pairs of lifting bodies 9a whose pulling paths are adjacent to each other, and the right side (as seen from the front).
One triggering body 8b whose triggering path is on the outside
It is driven by an upper cylindrical transmission case 18. The two scraping wheels on the left side are engaged with each other, and the three on the right side are engaged with each other in a row in the horizontal direction, and the vertical axis 2
0 and O, and the boo 9 at the top of their vertical shafts 20...
-21--, the rear part of the stem scraping belt 12... is wrapped around the sprockets 22, 22 attached to the second and fourth vertical shafts 20, 20 from the left, and the driving sprockets behind them)23. 23 is provided with the above-mentioned scraping chino 11.11, so the second scraping wheel 10 from the left drives the first scraping wheel 10 that meshes with it, and the fourth scraping wheel lO rotates the third and fifth scraping wheels 1G and 10 meshing on both sides, and as a result, the fifth scraping wheel 1
0 rotates counterclockwise in a plan view, and the corresponding outer stock head scraping chenolla is the rear drive sprocket) 2
The bearings that support the two raking wheels 10.10 on the right side are removably attached to the reaping frame via the mounting bracket 1OA that supports the raking wheels 10.10 so that these raking wheels 10.10 mesh with each other. be. Further, as shown in FIG. 2, the shaft 20a of the rightmost raking wheel 10 drives the lower stem raking chino 13a at its upper end, and the shaft of the driven sprocket at the rear of the stem raking chino 13a is The upper stem scraping chino 13b is driven, and the leftmost boo 9-21 has two V-grooves arranged in two stages, and the other V-groove and the floating pulley 21a pivoted on the side. A stalk raking bell (12a) with a lug is installed between the two to perform raking of grain culms in a wide raking passage, which will be described later. The shaft 24.24 of the drive sprocket) 23.23 is the third
As shown in the figure, it rises from the gear case 25.25,
Above the stem raking bell H2 and the fist, two levels of stem raking chinos 13, upper and lower, are installed. When the distance between the weeding body 7 and the adjacent weeding body 8 is made wider than the width of the weeding path in other parts, and the cutting is carried out perpendicular to the grain culm row, or when the wheat is harvested with a wide width. When reaping, etc., the machine meanders during the previous stroke to reap, so that even if the reaping line is uneven, there will be no uncut material. The horizontal conveyance check 715 has a starting end on the left side of the stock scraping check 71.
1, the rear end of which is bent toward the rear, and is driven by a drive sprocket (15a). [Vertical conveyance device] The vertical conveyance device 1B has a clamping rail 2θ on the conveyance surface of the conveyance chino.
It is composed of a stock head conveying body 28 with a gear case 28 facing each other, and an ear side conveying body 27 having a guide rod facing each other with a holding gap separated from a check 7 with a conveying claw. The front part of the ear side conveyor 27 has a lateral conveyance part parallel to the lateral conveyance check 715. This vertical conveyance device 16 is operated by a motor lea fixed to a diagonal portion 84, which will be described later, via links 18b.
The lifting arm 16c is tilted up and down about the horizontal axis P of the gear case 28 to adjust the handling depth. [Lifting and feeding device] In FIGS. 1, 3, and 5, the stock lifting body 1
7 and the ear side lifting body 18 are supported by a frame 31 protruding from the front surface of the decoding device l via a U-shaped rod 32,
The starting ends of those lifting bodies 17 and 18 are the stock carriers 2.
The end facing downward from the end of B is the supply port 33 of the threshing rack Ml.
It is higher than the entrance plate 33a protruding from the vertical conveyor 18, and these are arranged in parallel at an interval such that the end portions of the stock head conveyor 2B and the panicle side conveyor 27 of the vertical conveyance device 18 enter between the start ends, The stock lifter 17 consists of a chevron 717a having a low protrusion on each plate, and a rake claw 17c rotatably attached to the outside of its connecting pin and raised and projected by a guide rail 17b during the upward stroke. , panicle side lifting body 1
8 has a rake claw 19a that is longer than the rake claw 17c of the stock base lifting member 17, and a lifting guide plate is provided on the ear side of the ear side lifting member 18 as shown in FIG. 34, and between the stock head lifting body 17 and the ear side lifting body 18, there is an upper inclined guide plate 35 whose upper end is fixed to the lower surface of the inlet plate 33a, and whose lower part is the upper surface of the gear case 28. A movable guide plate 3B is hinged to the upper inclined guide plate 35 and overlaps the lower upper surface of the upper inclined guide plate 35. Further, the driving sprocket 37 of the stock head lifting body 17 and the driving sprocket 38 of the ear side lifting body 18 are mounted on a shaft 41 that pivotally supports a driven sprocket 40 of the foot chain 1a, as shown in FIG. A clutch 43 in a clutch case 42 is engaged with and disengaged from a clutch pawl formed on the side surface of the driven sprocket 40 by the operation of a shifter 44, and the shifter 44 connects a wire 46 to a latch petal 45 that runs.
Since the moving latch pedal 45 is depressed during work, the running latch is disconnected, and since the reaping device and vertical conveyance device 18 are interlocked with the traveling device 2, the machine body, reaping device, etc. are stopped. At the same time, the clutch 43 is disengaged and the lifting device is also stopped. Further, a guide rod 47 is provided on the upper surface of the stock head transport body 17, and the lower end of this guide rod 47 is connected to the stock head transport body 2.
The frame body 48 holding the clamping rails 29a of 8 is pivotally supported by pins 50 on the outer surface of the rear end of the frame body 48 so as to be rotatable back and forth as shown by solid lines and chain lines in FIG. When adjusting the handling depth by tilting up and down. Since the pin 50 is located very close to the horizontal axis P, which is the center of rotation of the vertical conveyance device 1B, when viewed from the side, the guide rod 47 can freely tilt around the base and move the conveyance surface of the stock lifter 17. It always acts as a presser in close proximity to the Also, when performing one-handed planking work, if you operate the change lever and disengage the main clutch of the submission 57, the traveling device 2
and a latch petal 45 that runs when the pretreatment device stops.
The clutch 43 of the lifting supply device is not depressed.
In this state, the guide rod 47 can be moved to the forward position (a) shown in FIG. ), one worker moves the stock lifter 1 located at a lower position than the supply port 33.
7 and the ear-side lifting body 18 in a comfortable posture, and when returning to the harvesting and threshing work, the guide rod 47 can be tilted rearward as shown in FIG. When the spring plate 51 whose rear part is fixed to the outer surface of the pinching rail 1b and whose front part is open is pushed outward and comes into contact with its base, the front part is received by the stopper 52. and set in a predetermined guiding posture. Therefore, since the diameters of the driving sprockets (37, 38) of the stock head lifting body 17 and the ear side lifting body 18 are smaller than the diameter of the driven sprocket 40 of the foot chain la, the conveyance speed of the foot chain 1a is is higher than the lifting speed v2 of the lifting device. [Pre-processing frame and transmission device] As shown in FIGS. 2 and 4, the pre-processing frame has a cylindrical frame on the horizontal axis P with a top link 53, and a lower part with a pair of left and right lower links 54, 54 supporting columns 55. It is supported by a frame 31 and a machine base 3 that are integral with the machine, and is raised and lowered while maintaining a substantially constant posture by the expansion and contraction operation of a hydraulic cylinder 56.
The power of the engine E is sent to the clutch 58 to the submission 57
The rear transverse shaft case BO, which is input via the refractive transmission mechanism 81 to be described later, is connected to three gear cases 81.
．． 82.83, and the front horizontal shaft case 65 has four gear cases 88°8? , 25.25, and the right end of the front horizontal shaft case 65 and the right end of the rear horizontal shaft case 60,
The gear case 61 at the left end of the rear horizontal shaft case 60 and the second gear case 87 from the left of the front horizontal shaft case 85 are integrally connected by a connecting frame 71 screwed into an L-shape by a holder 70 in the front-rear direction. By connecting with a shaft case 72, a transmission case 73 which also serves as an integral frame body is constructed. Further, the reaping frame 74 is constructed by connecting a plurality of vertical frames 75 to which each of the above-mentioned weeding bodies 7 and the above-mentioned weeding bodies 8 are attached by two horizontal frames 76 and 77 and a cutting blade frame 78. As shown in FIG. 4, the rear part of this reaping frame 74 overlaps with the front lower surface of the frame made of the transmission case 73, and is integrally constructed by making explosive contact at two places on the left and right. The vertical frame 75 is divided near the rear and removably connected with bolts 80. As shown in FIGS. 1 to 3.9, the refractive transmission mechanism 81 has a transmission 82 attached to the machine frame at the bottom of the cockpit 5.
The input pulley 83 of the transmission 82 is connected to the submission 5
It is driven by a pulley 84 in front of 7, and its output pulley 8
5 is interlocked and connected to the pulley 87 of the intermediate shaft 8B by a belt 88 with a clutch pulley, and the sprocket 8 of the intermediate shaft 8B
8 and a sprocket 91 attached to the horizontal shaft 90 in the rear horizontal shaft case 60 are interlocked and connected by a chino 91a,
The rear part of the bearing 8111a of the intermediate shaft 88 is supported by a semicircular receiving part provided at the front end of the rear bending arm e2, which is rotatably fitted loosely into the bearing tube 85a of the output pulley 85, and the front part is bent. The upper part of the arm 83 is fixed to the bearing 89a, and the lower part is loosely fitted to the rear horizontal shaft case 80. Therefore, when the preprocessing frame is raised and lowered in a substantially constant posture by the hydraulic cylinder 56, the transmission 82 is moved to the machine base 3. In contrast, the rear transverse shaft case 80 moves up and down integrally with the transmission case 73 while changing the relative distance, but with the intermediate shaft 88 between the front bending arm 93 and the rear bending arm 82 as the bending point. The threshing device 1 is separately driven by the engine E, and the threshing device 1 is driven separately by the engine E, so that the distance between the shafts does not change due to bending and stretching, and smooth transmission can be performed. Further, a gear case 29a provided adjacent to the gear case 28 for driving the vertical conveyance device 18 is a diagonal portion 8 in which a back transmission shaft is installed inside the gear case B2 of the rear horizontal shaft case 80.
4, and since the horizontal axis P in the gear case 28 and 29a coincides with the front fulcrum of the top link 53, smooth and reliable transmission can be performed, and the cylinder of the grain culm lifting device 9 The transmission case 18 is driven by a shaft 19a rising from the gear case 8B. [Grain culm guide device] A rear horizontal guide plate 95, which also serves as a cover that covers the outside and front side of the refraction transmission mechanism and is L-shaped in plan view, is removably screwed onto the front refraction arm 93 via a stay 86. This rear horizontal guide plate 95 has vertical guide portions 97a, 9? extending rearward from the lower rear surfaces of the raising bodies 9a, 9a located second and third from the left. a and the lateral guide portion 9 connecting their rear ends? As shown in FIGS. 1 and 3, the first and second triggering bodies 9a from the right are arranged in pairs across the horizontal conveyance path in the horizontal guide portion θ7b of the lower guide plate 87 consisting of
, 9b is also equipped with a lower guide plate 97, and a wide guide plate 97c extending rearward from the rear side of the left end triggering body 9a is bent at the rear and is attached to the rear surface of the horizontal conveyance path. The vertical intermediate portion of the guide plate 97c is formed into a F-shaped protrusion 97C°, and a channel-type support arm 97d protruding laterally from the holding cylinder of the shaft 19a is attached to the protrusion. Since it is fitted and screwed onto the rear surface of the strip 87C', it is possible to firmly support the rear part of the guide plate 137c, and the protrusion 137C' is in line contact with the grain culm that is being fed laterally. Therefore, grain culms can be horizontally conveyed in an orderly manner while reducing conveyance resistance. Also, an upper guide plate 98 is provided directly above the lower guide plate 87, the lateral guide part of which is substantially flush with the lateral guide part 97b of the lower guide plate 97, and which has a triangular shape in side view. Almost the entire surface of the upper slope of the upper guide plate 8 is screwed onto the back surface of the corresponding triggering bodies 9a, 9b with bolts 88, and the lower part is as shown in FIGS. 3 and 7. The stay 99a is attached to the support frame of the upper stem raking chino 13 with a small gap that allows straw waste to pass through. It is removably screwed on with 99a.

[Upper ridge weeding device]

A raising body 9 to which the non-working side of the grain culm raising device 9 is adjacent.
The ridge weeding device 100 is installed at the lower part between a and θd.
The ridge weeding device 100 is installed as shown in FIG. 8 and FIG.
A shaft 101 in the front and back direction is driven by the shaft of the chain 7, and a ridge chino 104 with a ridge pawl 103 and a fist Φ chain that can be raised and lowered is attached to a sprocket that is pivotally supported on the main part and the lower part of the chino case 102. and upper sprocket shaft 10
4a is driven by the shaft 101 via a bevel gear,
The above-mentioned ridge claw 103... is the guide rail 105 on the rising side.
As shown in FIG. 3, the distance is about 1 to 2 pitches (preferably 1.5 to 2 pitches) (however, l in the figure is 1 pitch) from the ground as shown in FIG. 3, and the lower edge of the lower guide plate 97 or the lower step The front part of the stem raking belt 13 is located at the stem raking belt 12.
Grass is forcibly separated on the ridge by standing up and protruding at a low ridge height corresponding to the height, and when the grain culm is delivered to the raising claw at the upper limit of the ridge, from then on, it is loosened by the raising claw until it reaches the ear side. It is possible to divide the grass easily and to reduce shedding and pulling out of culms compared to the method in which the grass is divided over the ridge up to the upper part of the raising bodies 9a, 9a. Further, during the downward stroke, the ridge pawl 103 enters between the raising bodies 9a and ea and descends as shown in FIG. 8(a). The rear surfaces of the non-acting sides of the triggering bodies 9a are open, and a guide plate 108 is bent rearward from the front of this opening.
Reference numeral 108 guides straw, mud, etc. backward and downward from the rear opening of the chenoke case 102, and guides the straw, mud, etc. to the raising body 9a,
This prevents straw waste from entering the opposing openings of the triggers 9a, and allows straw waste etc. discharged from the triggers 9a, 9a to fall from a gap 107 formed at the rear end. Furthermore, although not shown, a ridge-top weeding device 100 or a ridge-top weeding device having approximately the same height as the traction device 8b is attached to the outside of the pulling device 8b on the uncut land side. [Operation] Next, the operation will be explained. The grain culms are divided by the dividing body 7 and the dividing body 8, and while being divided by the ridge weeding device 100, the grain culm is raised by the grain culm pulling device 9, and the stem part is raked from the stem part. Belt 12...
The grain culm that has been raked by the cutting blade 12a and cut by the cutting blade 14 and raked from the left raking path to the cross-feeding path is guided at the rear by the guide plate 87c and the rear lateral guide plate 35, and the front part is guided by the upper guide plate 87c and the rear horizontal guide plate 35. The grain culms that are guided by the guide plate 98 and the lower guide plate 97 and are raked from the intermediate raking route merge with the grain culms that are being fed laterally from the left side, and then merge with the curved portion at the end of the traversing route. The grain culms that have been transported horizontally in this manner are transferred to the vertical transport device 16 and transported later, and during this time, the motor 113a is activated by the detection result of a handling depth sensor (not shown), and the vertical transport device g1
16 is moved up and down to adjust the handling depth, and at the end of the conveyance, the stock head conveyor 26 and the lower part of the stock head lifter 17 overlap, so the handle can be smoothly changed, and the guide rod 4
7, the stock lifting body 17 and the scraping claw 17c
The panicle side falls onto the panicle side lifting body 18, is inherited by the rake claw 19a, and is lifted up. At this time, since the terminal end of the vertical conveyance device 16 is inserted between the starting ends of the stock head lifting body 17 and the ear side lifting body 18, the stock base of the grain culm that has fallen from the terminal end of the vertical conveyance device 18 The panicle side is reliably received on the stock head lifting body 17 and the panicle side lifting body 18, and the panicle side is securely received on the stock base transport body 17 and the panicle side transport body 18, and the panicle side transport body 2B and panicle side transport body 2 of the vertical conveyance device
It will be carried out at wide intervals outside the conveyance end of 7, and it will be lifted in a stable horizontal position, and the base of 1 stock will be the starting end of the foot chain 1a of the threshing device 1 and the pinching rail 1b. The ears can be fed to the supply port 33 in an orderly manner, and the ears can be fed to the supply port 33 without disturbing their posture and without causing any delay in lifting. In cases where the traveling device 2 sinks, such as in wet fields, when the pretreatment frame of the reaping device and the vertical conveyance device 16 is raised by the hydraulic cylinder 5B, the rear bending arm 8 of the bending transmission mechanism 81
2 and the front bending arm 83 is reduced, and the distance between the axes is constant, so that the transmission can be carried out without strain. When the raking device rakes the grain culm, the seeds are swayed left and right by the upper guide plate 88 which is superimposed and connected to the top of the stem raking body 13 and the back surface of the raising body 9a. Moreover, the upper edge of the upper guide plate 88 is in close contact with the back surface of the triggering body 9a from the front end to the rear end, and the lower edge is covered with thin straw-like debris on the top surface of the stem scraping body 13. Since there is only a narrow gap through which the seed part cannot enter, the seed part can be guided in an orderly manner without shedding. In addition, the stem raking body 13... stands up high and the raking load constantly fluctuates, and when the machine body moves up and down due to unevenness in the field, it vibrates greatly. Since it is connected to the triggering body 9a,
The reaping frame 74, the triggering body 9a, and the stem raking body 13 are interconnected to form a truss shape, and the stem raking body 13 does not vibrate and performs reliable power transmission in a stable posture. While stirring, scrape the grain culm. Furthermore, the holding cylinder of the shaft 24 that drives the stem part scraping check 713 has a bearing holder at the bottom, and the bearing holder is inserted into the bearing 25b attached to the shaft 25a rising from the gear case 25, as shown in FIG. They are removably fitted and fastened with a pin 25c. (G) Effects of the Invention As described above, the present invention provides a cutting blade 14 at the rear of the raising body 3a.
and a combine harvester which is provided with a raking device, the end of the raking path is connected to the cross-feeding path, and the cross-fed grain culms are conveyed toward the rear threshing device 1 by the vertical conveyance device 1B,
A stem raking body φ of the raking device is installed above the cutting blade 14, and a triangular shape is formed between the top of the stem raking body and the back surface of the raising body 9a when viewed from the side. A guide plate 88 having a shape that guides the seeds is interposed, the lower part of the guide plate 98 is attached along the top of the stem scraping body, and the upper inclined part is attached to the back surface of the triggering body 9a. Because it is attached in a polymerized manner, even if the stem raking body becomes high with a large combine harvester, its top becomes integrated with the raising body through the guide plate, significantly reducing the vibration and noise of the stem raking body. I can do it. In addition, since the seed part of the grain culm to be scraped is guided by the guide plate, it may not cross over, bend, or become entangled.
Alternatively, it is possible to prevent grains from falling off due to being squeezed by other members.

[Brief explanation of drawings]

The drawings show one embodiment of the invention. Figure 1 is a developed plan view of the front part of the combine, Figure 2 is a side view of the same as above, Figure 3 (a) is a side view of the same as above with the right raking path omitted when viewed from the front, and (b) is the upper guide plate. Cross-sectional view of (
0) is a sectional view of the lower guide plate, FIG. 4 is a plan view of the pretreatment frame, FIG. FIG. 6(a) is a cross-sectional view of an example in which the scraping claws of the original lifting body are attached to the inside, and FIG. 6(a) is a side view of the lifting device.
)) is a plan view of the guide rod locking part, Fig. 7 is an exploded side view of the grain culm rake part, Fig. 8 (a) is a longitudinal sectional plan view of the ridge-top weeding device, and (b) is a perspective view of the same. , FIG. 9 is a side view of the refractive transmission mechanism. 9a... Raising body 13... Stem scraping body 16...
Vertical conveyance device 26..Stock base conveyor 27..Ear side conveyor 97..Lower guide plate 88.Φ Upper guide plate procedural amendment May 20, 1985 1, Indication of case Patent application 1988-43326 No. 2
, Title of the invention Grain culm guiding device 3 in a combine harvester Relationship with the case of the person making the amendment Applicant 8137-1, Iya-cho, Higashi-Izumo-cho, Hetsuka-gun, Shimane Prefecture (18
7) Mitsubishi Agricultural Machinery Co., Ltd. Representative Bengami Sambei 4, Agent 241 5, Subject of amendment (1) Drawings

Claims (1)

[Claims] A cutting blade 14 and a scraping device are provided at the rear of the raising body 9a...
In a combine harvester in which the end of the raking path is connected to a cross-feeding path and the grain culms that have been traversed are conveyed toward the rear threshing device 1 by a vertical conveyance device 18, the stem portion of the raking device is A body... is erected on the top of the cutting blade 14, and the stem scraping body...
A guide plate 98, which has a triangular shape in side view and guides the panicle, is interposed between the top of the stem and the rear surface of the triggering body 9a. A grain culm guiding device for a combine harvester, characterized in that the grain culm guiding device is attached along the top of the culm, and the upper inclined portion is attached so as to overlap with the back surface of the raising body 9a.