JPS61216616A - Pretreatment 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) Field of Industrial Application The present invention relates to a pretreatment device for a combine harvester that harvests and threshes culms.

(b) Prior art In general, when the frame of a pre-processing device is supported by a fixed fulcrum of the machine body and tilted up and down, the angles of the cutting blade, culm lifting body, etc. change, resulting in a decrease in cutting performance, lifting performance, etc. do.

In order to solve these drawbacks, a combine harvester in which the pre-processing device is attached to the machine using a four-point link consisting of a top link and a lower link so that the pre-processing device moves up and down while maintaining a substantially constant posture has been put into practical use. This is already known from Publication No. 50-46624.

(c) Problems that the invention attempts to solve The pretreatment device in the known combine harvester is as follows.

Although the cutting blade, culm lifting device, scraping body, and culm conveying device must be driven, the fulcrum of the pretreatment device moves up and down relative to the machine body, so an appropriate pretreatment drive device is not practical for a long time. was not converted into

(d) Means for solving the problems The present invention provides a combine harvester in which a pre-processing device is attached to the front part of the machine body with a four-point link consisting of a top link and a lower link. By interlockingly connecting the input section of the preprocessing device that can be raised and lowered via a refractive transmission mechanism, the preprocessing device can be raised and lowered in a constant posture, and the distance between the drive section on the fuselage and the input section of the preprocessing device can be reduced. The above-mentioned problem has been solved by making it possible to reliably drive the pretreatment device through the refraction transmission mechanism even if the pretreatment device changes.

(e) The drive unit on the working body transmits power to the input unit of the pre-processing device via the refractive transmission mechanism, thereby causing the cutting blade to be activated.

Drives the raking device, culm lifting device, culm conveying device, etc.

When the traveling device sinks into the soil in wet fields, etc., or when the traveling device travels a lot to harvest wheat, the cutting blade pushes up the pre-treatment device to direct it to the root of the culm. , the preprocessing device rises while maintaining a constant substantially horizontal attitude by the top link and lower link, and at that time, the distance between the drive unit that is integrated with the fuselage and the input part of the preprocessing device changes,
The refraction transmission mechanism changes the refraction angle accordingly, so that the pretreatment device can be reliably driven regardless of the height of the pretreatment device.

(F) Embodiment An embodiment of the present invention will be explained with reference to the drawings. 1 is a self-described threshing device mounted on a machine base 3 having a traveling device 2; i4. Cockpit 5.
The engine E is installed at the bottom, and the grain tank etc. are arranged at the rear, and in the front there are a plurality of cutting plants 7, 7, 8, and 1 device for culm 9. From the raking wheel 10..., the stock raking chino 11..., the stem raking belt with lugs 12..., the stem raking chino with raking claws 13..., the cutting blade 14, the horizontal conveying chino 15, etc. A vertical conveyance device 18 is disposed from one side of the reaping device toward the rear and upward, and a stock removal device is provided between the terminal end of the vertical conveyance device IB and the supply section of the threshing device 1. A lifting device is provided in which a feeding body 17 and a panicle side lifting body 18 are arranged in parallel.

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 culm lifting device 9 has two pairs of lifting bodies 9a--, whose lifting 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.

For the scraping wheels 10φ, the two on the left side are engaged, and the three on the right side are engaged in a row in the horizontal direction, and the vertical axis 2
0..., the rear part of the stem scraping belt 12 was wrapped around the pulley 21... on the upper part of the vertical shafts 201111, and it was attached to the second and fourth vertical shafts 20, 20 from the left. Sprockets 22, 22 and their rear drive sprockets 3, 23,
Since M is tensioned, the second scraping wheel 10' from the left
drives the first raking wheel 10 that meshes with it, and the fourth raking wheel lO rotates the third and fifth raking wheels 10.10 that mesh with it on both sides. The raking wheel 10 rotates counterclockwise in plan view, and the corresponding outer raking wheel 10 is a rear drive sprocket.
23a, the two right-hand scraping wheels 10.1
0 is removably attached to the reaping frame via a fitting 10A that supports the raking wheels 10.1G so that they mesh with each other.

Further, the shaft 20a of the rightmost scraping wheel 10 drives the lower stem scraping chino 13a at its upper end, as shown in FIG.
The shaft of the driven sprocket at the rear of the stem scraping chino 13a drives the upper stem scraping chino 13b, and the left end pulley 21 has two V grooves, and the other V groove A lug-equipped stem scraping belt 12a is stretched between the shaft and a laterally supported floating pulley 21a to scrape the culm in a wide scraping 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,
Upper and lower stem raking belts 13 are stretched above the stem raking belt 12, and the first one from the left side is located in front of the driver's seat 5 and close to the already cut field. branch 7
When cutting at right angles to the culm row by making the distance between the grass body 8 and the adjacent grass body 8 wider than the width of the weed cutting path in other parts, or when harvesting wide wheat. This is to avoid leaving any uncut material even if the cutting line is uneven, as the machine meanders during the previous stroke to cut the cutting.

The horizontal conveyance chino 15 has a starting end on the left side of the stock scraping chino 1.
1, the terminal end is bent rearward and is driven by a drive sprocket 15a.

[Vertical conveyance device] The vertical conveyance device 1G has clamping rails 28 on the conveyance surface of the conveyance chino.
It is composed of a stock head conveyor 26 with a gear case 26 facing each other, and an ear side conveyor 27 with a guide rod facing each other with a holding gap between a check 7 with a conveyor claw, and a shaft rising from a gear case 28. 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 tilted up and down by a lift arm 18c about the horizontal axis P of the gear case 28 via links 18b by a motor 18a fixed to an inclined portion 84, which will be described later, 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 threshing device l via a U-shaped rod 32,
The starting ends of those lifting bodies 17 and 18 are the stock carriers 2.
It faces downward from the terminal end of B, and the terminal end is the supply port 33 of the threshing device 1.
It is higher than the entrance plate 33a protruding from the vertical conveyor 1B, and these are arranged in parallel at an interval such that the terminal end portions of the stock base conveyor 26 and the panicle side conveyor 27 of the vertical conveyance device 1B enter between the starting ends, The stock lifter 17 is rotatably attached to the outside of a chain 717a having a low protrusion on each plate and its connecting pin, and is raised and protruded by the upper guide portion of the guide rail 17b during the upward stroke, and by the lower guide during the downward stroke. The ear-side lifting member 18 has rake-up claws 18a that are longer than the rake-up claws 17c of the stock base lifting member 17. As shown in FIG. 1, a lifting guide plate 34 is provided on the ear side of the ear side lifting body 18,
Between the stock head lifting body 17 and the ear side lifting body 18, an upper inclined guide plate 3 whose upper end is fixed to the lower surface of the entrance plate 33a is provided.
5, and a movable guide plate 36 whose lower part is hinged to the upper surface of the gear case 28 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 la, as shown in FIG. The clutch 43 in the 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 48 to a latch petal 45 that runs.
Because it is linked and connected.

When the running tarlatch pedal 45 is stepped on during work, the running latch is released, and since the reaping device and vertical conveyance device IB are linked to the traveling device 2, one machine, the reaping device, etc. are stopped, and at the same time, the clutch 43 is released. The lifting equipment also stops.

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 that holds the clamping rail 28a of the frame 48 is pivotally supported by a pin 50 on the outer surface of the rear end thereof, as shown by solid lines and chain lines in FIG. When the handling depth is adjusted by tilting up and down, the pin 50 is in a position extremely close to the horizontal axis P, which is the center of rotation of the vertical conveyance device 1B, in side view, so the guide rod 47 can freely move around the base. It is tilted to be close to the conveyance surface of the stock lifter 17 and always acts as a presser.

Also, when performing hand 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. ), the operator lifts 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 reaping 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 drive sprockets) 37 and 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 feed chain la, the conveying speed v1 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 connects the side part of the gear case 28, 28a that supports the horizontal shaft P to the forked part at the front of the top link 53. The lower part near the center of gravity is supported by a pair of left and right lower links 54 54 , and the rear part of the top link 53 is a frame 31 that is integrated with the support column 55 .
Further, the rear part of the lower link 54.54 is supported by the machine base 3, and the pretreatment device is moved up and down while maintaining a substantially constant horizontal posture by the expansion and contraction operation of the hydraulic cylinder 58. The rear transverse shaft case BO, which is inputted via the clutch 58 and transmitted via the refractive transmission mechanism 81 described later, is connected to three gear cases 81, 82, . H, 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 BO are held L with a holder 70.
The gear case 61 at the left end of the rear horizontal shaft case GO and the second gear case 67 from the left of the front horizontal shaft case G5 are integrally connected by a connecting frame 71 screwed into a shape, and are connected to the shaft case 72 in the longitudinal direction. The transmission case 7 doubles as an integral frame by being connected at the ends, and forms a horizontal U-shape in plan view.
It consists of 3 parts.

Further, the reaping frame 74 is constructed by connecting each of the above-mentioned branching bodies 7 and the plurality of vertical frames 75 to which the full-sized grass bodies 8 and fists are attached by two horizontal frames 713 and 77 and the cutting blade frame 7B. The horizontal frame 7B of this reaping frame 74 is fixed by connecting frames 79 and 71 in the longitudinal direction on the left and right sides, and this reaping frame 74
As shown in FIG. 4, the rear part of the transmission case 73 overlaps with the front part of the frame body consisting of the transmission case 73 from below, and the left connecting frame 7θ
The front part of the mounting plate 85a'' discharged rearward from the front horizontal shaft case 65 is removably fixed by bolting the rear part to the bracket 80a protruding from the lower part of the rear horizontal shaft case 80, respectively. The front part of the right side connecting frame 78 is fixed to a mounting plate 85b protruding from the front transverse shaft case 65, and the rear part is fixed to the lower surface of the gear case 62 with bolts, respectively, so that the reaping frame 74 is removably fixed. The transmission case 73 is integrated with the transmission case 73, and the vertical frame 75 at the right end 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 with the pulley 87 of the intermediate shaft 8B by a belt 88 with a clutch pulley, and the sprocket 8 of the intermediate shaft 86 is connected to the pulley 87 of the intermediate shaft 8B.
9 and a sprocket 81 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 88a of the intermediate shaft 8B is supported by a semicircular receiving part provided at the front end of a rear bending arm 92 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 +[a, and the lower part is loosely fitted to the rear transverse shaft case 60, so when the pretreatment frame is raised and lowered in a substantially constant posture by the hydraulic cylinder 56, the transmission 82 is moved. In contrast to the machine base 3, the rear transverse shaft case 60 moves up and down integrally with the transmission case 73 while changing the relative distance. The threshing device 1 is separately driven by the engine E, and the threshing device 1 is driven separately by the engine E. Since the threshing device 1 bends and stretches at the bending point, the distance between the shafts does not change, and smooth transmission can be performed.

In addition, a gear case 28a, which is temporarily installed on the second day, is a gear case 28a that drives the vertical conveyance device 1B.
4, and since the horizontal axis P in the gear case 28° 28a coincides with the front fulcrum of the top link 53, smooth and reliable transmission can be performed, and the cylinder of the culm lifting device 9 The transmission case 18 has a gear case B6.
The signal is inputted by the shaft 19a rising from the axis 19a.

Furthermore, the top link 53 is shown in side view in FIG. 9(a).
, As shown in (b), it is approximately perpendicular to the stock head lifting body 17 and the panicle side lifting body 18 at the middle 0 of the upper and lower class 9h range, so
When the cutting height is adjusted by raising and lowering the pre-treatment device, the distance between the end of the stock head conveying cheno 28 and the stock head lifting body 17, etc. hardly changes, and the culm can be adjusted regardless of the cutting height. Transfer can be carried out reliably.

[Culm Guide Device] A rear lateral guide plate 85, which also serves as a cover that covers the outside and front side of the refraction transmission mechanism and has a two-letter shape in plan view, is removably screwed onto the front refraction arm 83 via a stay 96. This rear horizontal guide plate 85 includes vertical guide portions 97a, 87a extending rearward from the lower rear surfaces of the triggering bodies 9a, 9a located second and third from the left, and their rear ends. The horizontal guide part 9 of the lower guide plate 87, which is composed of the connected horizontal guide part 197b? As shown in FIGS. 1 and 3, the first and second lifting bodies 9 from the right are facing each other across the horizontal conveyance path.
A lower guide plate 97 is also attached to the back side of the puller body 8a at the left end, and a wide guide plate 97c extending rearward from the back side of the left end triggering body 8a is bent at the rear end to guide the horizontal conveyance path. A channel-type support arm 97d is provided along the rear surface, and the vertically intermediate portion of the guide plate 87c is formed into a F-shaped protrusion 87C°, and the channel-type support arm 97d projects laterally from the holding cylinder of the shaft 18a. Since it is fitted and screwed onto the rear surface of the protruding part 87c', the rear part of the guide plate 137c can be firmly supported, and the protruding part 87C' is in line contact with the culm being transversely fed. As a result, the culm can be horizontally transported in an orderly manner while reducing the transport resistance.

Also, an upper guide plate 88 is provided directly above the lower guide plate 97, the lateral guide part of which is substantially flush with the lateral guide part 97b of the lower guide plate 37, and which is triangular in side view. Almost the entire surface of the upper inclined part of the upper guide plate 88 is screwed onto the back surface of the corresponding triggering bodies 8a, 9b with bolts 89, and the lower part is directed upwardly as shown in FIGS. 3 and 7. Leave a small gap between the support frame of the stem raking check 713 and the stay 88a to allow straw waste to pass through.

It is removably screwed on with 99a.

[Line weeding device] A raising body 9 whose non-acting side of the culm raising device 9 is close to
A line weeding device 100 is installed at the lower part between 9a and 9a.
The linear weeding device 100 is installed as shown in FIGS.
A shaft 101 in the front and back direction is driven by the shaft of the chino through the chino, and a bridge pawl 103...a linear chino 104 attached to the chino so that the chino can be raised and lowered are attached to the sprockets pivotally supported at the upper and lower parts of the chino case 102.

However, when the shaft 104a of the upper sprocket is driven by the shaft 101 via the bevel gear, the bridge pawls 103.
On the rising side, the guide rail 105 allows the third
As shown in the figure, 1 to 2 pitches (preferably!, 5
~2 pitches) (however, l in the figure is 1 pitch), and the stem raking check 713 is located at the lower edge or lower stage of the lower guide plate 97.
When the culm is forcibly divided on the ridge by protruding at a low ridge height to a height corresponding to 12 (the front part of the culm is raked in the stem), the culm is handed over to the raising claw at the upper limit of the ridge. After that, the weeds are pulled apart by the pulling claws, and the weeds are easily weeded to the panicle side.
It is possible to reduce shedding and pulling out of culms compared to the method in which the weeds are divided on the ridge up to the upper part of the raising bodies 9a, 9a.

Furthermore, during the downward stroke, the bridge pawl 103 enters between the triggering bodies 9a, 8a and descends, as shown in FIG. Guide plate 108.10 bent from the front of the opening toward the rear
Reference numeral 8 guides straw, mud, etc. backward and downward from the rear opening of the cenocase 102, and guides them to the raising bodies 9a, 9.
straw waste etc. discharged from the raising bodies 9a, 9a fall through the gap 107 formed at the rear end.

Furthermore, although not shown, a linear weeding device having approximately the same height as the linear weeding device 100 or the pulling body 9b is attached to the outside of the pulling body 8b on the uncut land side.

[Effect] Next, the effect will be explained.

The grass is divided into 7 and 8.

The culm, which is pulled up by the culm pulling device 9 while being divided on the ridge by the line weeding device 10G, is moved from the base of the plant to the stem raking belt 12.
The culm, which has been raked by the blade 12a and cut by the cutting blade 14, and which has been raked from the left raking path to the cross-feeding path, is guided at the rear by the guide plate 97c and the rear lateral guide plate 85,
The front part is guided by an upper guide plate 98 and a lower guide plate 87,
The shell culm scraped from the intermediate scraping route merges with the shell culm that is fed laterally from the left side, and then merges with the curved part at the end of the cross-feeding route.

The shell culm that has been horizontally fed in this way is transferred to the vertical conveyance device 16 and transported later, and during this time, the motor 18a is actuated based on the detection result of a handling depth sensor (not shown), and the vertical conveyance device 1B
is moved up and down to adjust the handling depth, and at the end of the conveyance, the stock base conveyor 2B and the lower part of the stock base lifting body 17 overlap, so it can be smoothly changed and held down by the guide rod 47. The raised state is transferred to the stock head lifting body 17 and the rake-up claw 17c, and the panicle side falls onto the ear-side lifting member 18 and is transferred to the rake-up claw 1.
8a and transported to each other.

At this time, since the terminal end of the vertical conveyance device 18 is inserted between the starting ends of the stock head lifting body 17 and the panicle side lifting body 18, the stock base of the culm that has fallen from the terminal end of the vertical conveyance device M18 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 lifting body 17 and the panicle side lifting body 18, and
It will be transferred at wide intervals outside the conveyance end of 7, and will be lifted in a stable horizontal position, and the stock base will be connected to the foot chain la of thresher 1 and the pinch rail! It is possible to orderly feed the grains to the starting end of b, and to supply the ears 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 18 is raised by the hydraulic cylinder 5e, the rear bending arm 8 of the bending transmission mechanism 81
2 and the front bending arm 93 is reduced, and the distance between the axes is constant, so that transmission can be carried out without strain.

Further, the front part of the rear bending arm 92 is semicircular and fits into the bearing 8Ela from the rear, so that when the entire preprocessing device is separated, the belt 88 and the spring 88!
The refraction transmission mechanism 81 can be separated into the front and rear by simply removing the parts.

(G) Effects of the Invention As described above, the present invention provides a combine harvester in which a pre-processing device is attached to the front part of the machine body using a four-point link consisting of a top link 53 and a lower link 54. Since the part is interlocked and connected to the input part of the pre-processing device which can be raised and lowered via the bending transmission mechanism 81, the traveling device 2 may sink due to a weak field, or the traveling device 2 may not move as much as when harvesting wheat. In such cases, when the field is transitioning from this condition to a hard field, pushing up or down will cause the cutting blade to break! 4. Culm lifting device 9. The pre-processing device consisting of a raking wheel 10φ and a culm conveying device is supported by a top link 53 and a lower link 54, 54, so it moves up and down while maintaining a constant posture, and the input section of the pre-processing device The distance between the refractive transmission mechanism 81 and the drive section on the fuselage changes.
This means that the refraction angle is changed while keeping the distance between the transmission shafts constant, and as a result, transmission can be ensured no matter how the pretreatment device is raised or lowered.

[Brief explanation of the drawing]

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 (
c) is a cross-sectional view of the lower guide plate, Figure 4 is a plan view of the pre-processing frame, and Figure 5 (a) is a vertical cross-section (support) of the lifting device (h)
l+rt sinus μ drawing wax rrFMrV (r-)
6 (a) is a side view of the lifting device, (b) is a plane view of the guide rod locking part. Figure 7 is an exploded side view of the culm raking part, Figure 8 Ca) is a longitudinal cross-sectional plan view of the overpass weeding device, (b)
9 is a perspective view of the same as above, FIG. 9(a) is a side view showing the upper limit of the tilting range of the refractive transmission part and the top link, and FIG. 9(b) is a side view showing the lower limit of the tilting range of the same. 1B... Vertical conveyance device 81φ - Refraction transmission mechanism 82.
・Transmission device #8・Belt 91・Fist sprocket 91a ・・Cheno 92・・Rear bending arm 8
3. Procedural amendment for front refractive arm (gi) May 20, 1985 1, Indication of case Patent application No. 1987-58760 2
, Title of the invention Pretreatment device 3 in combine harvester
, Relationship to the case of the person making the amendment Applicant: 667-1 (187
) Mitsubishi Agricultural Machinery Co., Ltd. Representative Inoue Gobei 4, Agent 241 5, Subject of amendment (1) Drawings

Claims (1)

[Claims] (1) Top link 53 and lower link 54 at the front of the aircraft
In a combine harvester equipped with a pre-processing device using a four-point link consisting of Features: Pre-processing equipment for combine harvesters.