JP3769901B2 - Combine harvester - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine harvester and belongs to the technical field of agricultural machinery.
[Prior art]
Conventionally, the harvesting part of the combine is configured by providing one wide harvesting device over the entire trimming width (4 to 6), and by dividing the harvesting device into a plurality along with the trimming width. There was a composition. The former has a relatively simple structure, but there are drawbacks that cannot be dealt with if there is a slight difference in the left and right cutting heights when the traveling vehicle body is tilted and the latter is complicated. However, even when the cutting width is wide, there is a feature that the cutting height can be adjusted in each part, and each has advantages and disadvantages.
[0002]
[Problems to be solved by the invention]
The conventional reaping device, in particular, the reaping device constructed by arranging a plurality of cutting blades between the cutting widths, the support of the side end portion (especially the inner portion) of the cutting blade is insufficient and unstable, There was a problem in strength. Moreover, since the side edge part (division part) of the split cutting blade is located at the center part of the cutting width, the sawdust in the field is entangled or wound, and the split part (the combination of both cutting devices) There are problems such as occurrence of uncut leaves at the position) and formation of high and low steps on the cut traces.
[0003]
[Means for Solving the Problems]
The present invention takes the following technical means in order to solve the above-described problems. That is, a horizontal blade attachment member (3) is provided on the front side of the machine frame (2) in which the cutting transmission device (1) is installed, and a plurality of weed support rods (4) are provided on the blade attachment member (3). In providing the extended weeding support rods (4), the interval between the plurality of weed support rods (4) is set so that each row of cereal rows can enter and only the already-cut side can enter 2 rows of row culms. A cutting blade guide (6) having a plurality of adjustment holes formed vertically on the lower side of the weed support rod (4) is provided, and a slide attached to the cutter bar (25) on the upper surface of the fixed receiving blade (5a). The mowing blade (5b) is overlapped and slidably pressed by the blade presser (26) to constitute the mowing device (5), and the mowing device (5) is divided into left and right, and the left and right mounting stearyl left provided on the inner side of the cutting device (5) of - (7, 7 ') solid to the mounting board (17) of said cutting device the rear of the (5) The left and right mounting stearyl while wearing - (7, 7 ') to extend forwardly mounted on both sides of the cutter blade guide (6), cutting the supporting arms provided outside of the apparatus (5) (16) A rear portion is pivotally attached to a flange (18) connected to a side end portion of the cutting blade attachment member (3), and a front portion of the support arm (16) is attached to the cutting blade guide (6). The left and right mowing devices (5) are supported by a plurality of adjustment holes formed in the cutting blade guide (6) so that the cutting height can be adjusted, and the support arm (16) left and right cutting device toward the rear in plan view Rutotomoni該張out section projecting portion (22) provided right and left turn overhanging outward from the outer end to induce strain base of culms on the outside of (5) (22) The mounting bolts (23) are positioned behind the cutting power transmission device (1). The reaping device is operated by interlocking the interlocking rods (21, 21 ') via the crank rods (20, 20') from the interlocking left and right crank devices (19, 19 ') with the cutter bar (25, 25). The sliding cutting blade (5b) divided into the left and right of (5) is configured to reciprocate in the left and right directions, and the transmission shaft (42) is raised from the left and right sides of the cutting transmission device (1). A structure that extends upward, has a power take-out portion (44) in the upper and lower middle portions of the pulling transmission shaft (42), and transmits the culm scooping and conveying device (45) from the power take-out portion (44) Further, it is raised and raised from the upper part of the transmission shaft (42), is caused to pass through the continuously variable transmission (43) and the stepped transmission (47), and is transmitted through the horizontal shaft (48). a configuration in which transmission of each grain稈引raised device via hanging shaft (49) from (48) (46), varying the stepped The device (47) is configured to be manually operated to shift the speed between high speed and low speed, and the pulling continuously variable transmission (43) is automatically shifted according to the degree of lodging of the culm. The combine harvester is configured to be capable of automatically shifting the speed .
[0004]
【The invention's effect】
According to the present invention, it is possible to stably support and increase the strength of a reaping device that is configured with a cutting blade divided into two on the left and right sides between the entire cutting widths. Furthermore, problems such as swarf entangled with the cutting blades divided into the left and right two, wrapping around and causing troubles, and remaining cuttings at the divided portions can be solved.
Further, the support arm 16 is formed by forming an overhanging portion 22 whose rear portion sequentially protrudes outward, and a mounting bolt 23 is covered behind the overhanging portion 22. The uncut mushroom can be guided smoothly and guided outward. In this way, the support arm 16 protects the mounting bolt 23 and prevents wear and breakage as well as preventing the uncut chopping of the uncut chopsticks by the sliding cutting blade 5b by the overhanging portion 22. At the same time, it can eliminate the catch of sawdust and weeds.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
First, the configuration will be described.
The traveling vehicle body 8 has a crawler 9, 9 'wound around a grounding portion to constitute a traveling device, and a threshing device 10 is mounted on the upper portion thereof. The cutting support frame 11 has a rear portion pivotally attached to a support portion provided at a front portion of the traveling vehicle body 8 so as to freely pivot up and down, and extends forward and downward, and extends to the front portion in a lateral direction. A machine frame 2 also serving as a transmission case is attached. The cutting support frame 11 includes a transmission shaft 12 (the transmission mechanism will be described later in detail) that is transmitted from the traveling vehicle body 8 side, and the cutting transmission device 1 in the front machine casing 2 is provided. It is set as the structure which transmits, and it is set as the structure which a front part raises / lowers by the raising / lowering cylinder 13 which expands-contracts by oil_pressure | hydraulic.
[0006]
The cutting blade mounting member 3 is provided with the pipe material positioned laterally along the front side of the machine frame 2, and the left and right sides thereof are mounted on the machine frame 2 behind by the mounting arms 14, 14 ′. The rear portions of the extended plurality of weed support rods 4 are fixed. And, the weed support rods 4 are provided by arranging a plurality of them at intervals of each cut grain row (one row of rows). Each weed support rod 4 is provided with a weed rod 15 at its tip.
[0007]
Next, in the embodiment shown in FIG. 1, the cutting device 5 is configured such that the sliding cutting blades 5b arranged and attached to the cutter bar 25 are superposed on the upper surface of the fixed receiving blade 5a, and the blades are cut at a plurality of positions on the upper side. The presser 26 is configured to be freely slidable. The mowing device 5 is divided into left and right two, and both outer end portions are attached to the side end portion of the cutting blade attachment member 3 via a support arm 16 and a weed support rod 4 described later, Inner end portions are also supported by a weed support rod 4a in the middle portion by mounting steps 7, 7 'and a cutting blade guide 6, which will be described later, and further, an intermediate portion of the cutting blade mounting member 3 by the weed support rod 4a. It is connected and supported.
[0008]
Hereinafter, the mounting structure of the reaping device 5 will be specifically described.
First, each of the plurality of weed support rods 4 is provided with the cutting blade guides 6 hanging down on the lower side thereof, and exhibits the function of weeding the cereal stocks to the left and right in cooperation with the weed support rods 4. It is configured. And the weed support rods 4 are arranged with an interval that allows the entry of one row of grain ridges that have been planted in the field as described above, but according to the conventional practice in the combine, Only the already-cut culvert side is configured with a wide interval so that two rows of grain ridges can enter. Therefore, in the case of the embodiment shown in FIG. 1, in the case of the embodiment shown in FIG. 1, the intermediate weed support rod 4a (undivided position of the cutting device 5) is not trimmed in order to ensure the right and left balance as much as possible. The position where the balance can be secured is selected by setting the heel side (left side) to 3 and the already cut heel side (right side) to 2.
[0009]
In addition, the cutting device 5 divides | segments into equal parts, when the number of cuttings is an even number (for example, 2 and 2 in 4 cuttings).
As shown in FIGS. 2 and 3, the mounting stages 7, 7 ′ are fixed to the mounting base 17 of the reaping device 5 and the front thereof extends forward through the upper side thereof. It attaches and supports the reaping device 5. In this case, the attachment stages 7, 7 ′ are provided on the inner sides of the left and right reaping devices 5 and attached to both side surfaces of the cutting blade guide 6 with screws.
[0010]
The cutting blade guide 6 has a configuration in which a plurality of adjustment holes are formed in the upper and lower sides so that the cutting height can be adjusted.
As shown in FIGS. 4 and 5, the support arm 16 pivotally supports and supports the rear portion of the support arm 16 on the flange 18 connected to the side end portion of the cutting blade mounting member 3. It is configured to be attached to the adjustment hole of the cutting blade guide 6.
[0011]
As described above, the reaping device 5 in which the both end portions of the inner side portion and the outer side portion are erected on the cutting blade mounting member 3 via the weed ridges 4 and 4a, respectively, L-shaped linkages 21 and 21 'connected from the crank devices 19 and 19' connected to the transmission device 1 through the crank lots 20 and 20 'are attached to the cutter bar 25, and the sliding cutting blade 5b is moved to the left and right. And reciprocally swing.
[0012]
As shown in FIG. 4, the support arm 16 forms an overhanging portion 22 in which the rear portion sequentially protrudes outward in a plan view and guides the cereal stocks to the outside, and the mounting bolt 23 is located behind the overhanging portion 22. It has a configuration.
[0013]
Next, the transmission mechanism of the combine will be described based on the diagram shown in FIG.
First, the rotational power is constituted by two transmission mechanisms that are transmitted from the engine 30 via the transmission shaft 31 to the traveling mission device 34 via the rear threshing device 10 and the front transmission belt 32 via the front hydraulic transmission 33. is doing. And the said transmission shaft 31 is set as the structure which transmits the discharge | emission spiral shaft 36 of the Glen tank 35 from an intermediate part, and transmits the threshing apparatus 10 from a terminal part.
[0014]
The traveling mission device 34 takes out the power transmitted through the hydraulic transmission device 33 to the outside via the one-way clutch 37 and transmits it to the transmission shaft 12 and the inside of the mission case. Although not provided, the wheel shaft is transmitted via the auxiliary transmission device, the side clutch device, and the side brake device, and is configured as a path for transmitting the crawlers 9 and 9 '. As shown in FIG. 6, the rotational power is configured to transmit a cereal supply device 38 that supplies cereal to the threshing device 10 before reaching the transmission shaft 12.
[0015]
And the power transmission shaft 12 is provided with the power take-out part 39 in the intermediate part, and is set as the structure which transmits the front grain ridge conveyance apparatus 40 and the handling depth adjustment chain 41. FIG.
Next, the cutting transmission device 1 is configured such that the transmission shaft 12 is connected to an intermediate portion thereof so that the transmission shaft 12 can be transmitted, and the crank devices 19 and 19 ′ are connected to both ends thereof to reciprocate the cutting device 5. And the transmission shaft 42 is extended upward and provided on one side. The pulling transmission shaft 42 is configured to pull up the end portion of the transmission shaft 42 so as to be capable of transmission to the continuously variable transmission 43, and to provide the power take-out portion 44 at the intermediate portion so as to transmit the cereal scraping and conveying device 45.
[0016]
Each grain raising device 46 is raised from the above-described continuous transmission 43 through a stepped transmission 47 and is transmitted from the horizontal shaft 48 via each hanging shaft 49 to each grain row. In this configuration, the action is caused. And the grain raising apparatus 46 is configured to cause the action according to the degree of lodging of the grain and to cause the action while changing the speed automatically and manually. That is, the pulling-up and continuous transmission 43 is configured to automatically shift based on the pulling control, and the stepped transmission 47 is configured to be able to shift between high speed and low speed by manual operation.
[0017]
Next, the operation will be described.
First, when the engine 30 is started, the rotational power is transmitted to each part of the threshing device 10 via the transmission shaft 31, while reaching the traveling mission device 34 from the transmission belt 32 via the hydraulic transmission 33. -The transmission 9 and 9 'are transmitted, and the rotary shaft 12 is transmitted from the traveling mission device 34 via the one-way clutch 37 (the transmission to the cutting side is not transmitted when the hydraulic transmission 33 is switched to reverse traveling). And each conveying apparatus 40, 41, 45, the reaping apparatus 5, and the grain raising apparatus 46 are transmitted sequentially, and the preparation of work is completed.
[0018]
At this time, the cutting device 5 of the embodiment slides from both sides of the cutting transmission device 1 through the crank devices 19, 19 ′, the crank lot 20, 20 ′ L-type linkages 21, 21 ′, and the cutter bar 25. The cutting blade 5b is transmitted, and the left and right reciprocating motion is repeated with respect to the fixed receiving blade 5a.
[0019]
As described above, the combine performs the threshing and threshing action of the rice straw while moving forward with the traveling vehicle body 8 when each part of the rotation is transmitted. Then, the culm is raised from the lying state to the upright state by the culm raising device 46, the stock reaches the reaping device 5, is harvested, and is sequentially conveyed upward and supplied to the threshing device 10. The grain that has been screened by the threshing device 10 is stored in the glen tank 35.
[0020]
During the operation as described above, as shown in FIG. 1, the cutting device 5 is left and right at the position of the intermediate weed support rod 4a that can secure the left and right balance even if the number of cutting lines is an odd number. Since the structure is configured to support the two close to each other, there is no abnormal vibration caused by unbalance, and a stable cutting operation with relatively little vibration can be performed. Since the cutting device 5 has a configuration in which the entire cutting width is divided into two parts and attached separately to the left and right, the cutting height can be easily adjusted. For example, the traveling vehicle body 8 is in an inclined state (heavy in a super wet field). In a farm field that travels at a lower level (the grain tank side becomes lower), the right mowing device 5 (the grain tank side) can be adjusted to the high mowing position for work. Thus, the divided cutting device 5 has an advantage that one side can be adjusted to cope with a difference between the left and right cutting heights within the same cutting width.
[0021]
Since the two cutting devices 5 support the inner end portion below the middle portion of the weed support rod 4a, the two cutting devices 5 are formed by the weed support rod 4a and the cutting blade guide 6 hanging below the weed support rod 4a. Cereal grains, swarf, weeds, etc. are removed separately on both sides, so that not only there is no cutting residue, but there is also a feature that can be accurately cut without tangling.
[0022]
Further, as shown in a plan view of FIG. 4, the support arm 16 in the embodiment is formed by forming a protruding portion 22 whose rear portion sequentially protrudes outward and covering the mounting bolt 23 behind the protruding portion 22. In particular, when stock splitting is performed with the weed cocoon 15, the outside uncut cocoon can be guided smoothly and guided outward. In this way, the support arm 16 protects the mounting bolt 23 and prevents wear and breakage as well as preventing the uncut chopping of the uncut chopsticks by the sliding cutting blade 5b by the overhanging portion 22. In addition, it has a practical effect that eliminates the catch of sawdust and weeds.
[Brief description of the drawings]
FIG. 1 is a plan view of an embodiment of the present invention.
FIG. 2 is a plan view of an embodiment of the present invention.
FIG. 3 is a side view of the embodiment of the present invention.
FIG. 4 is a plan view of an embodiment of the present invention.
FIG. 5 is a side view of the embodiment of the present invention.
FIG. 6 is a diagram showing a transmission mechanism according to an embodiment of the present invention.
FIG. 7 is a front view of an embodiment of the present invention.
FIG. 8 is a side view of the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mowing transmission device 2 Machine frame 3 Cutting blade attachment member 4 Weed support rod 5 Mowing device
5a Fixed cutting blade 5b Sliding cutting blade 6 Cutting blade guide 7 Mounting stage
7 'Mounting stage
16 Support arm 17 Mounting base
18 Flange 19 Crank device 19 ′ Crank device 20 Crank rod 20 ′ Crank rod 21 Link 21 ′ Link 22 Overhang
23 Mounting bolt 25 Cutter bar
26 Blade presser 42 Pulling up transmission shaft
43 Pulling- up continuously variable transmission 44 Power take-out part 45 Grain picking / conveying device 46 Grain raising device 47 Stepped transmission 48 Pulling horizontal shaft 49 Hanging shaft

Claims (1)

A horizontal cutting blade mounting member (3) is provided on the front side of the machine frame (2) in which the mowing transmission (1) is installed, and a plurality of weed support rods (4) are forwardly mounted on the cutting blade mounting member (3). In the extended installation, the arrangement interval of the plurality of weed support rods (4) is set to be an interval at which one row of grain rows can enter and only the already-cut side can enter two rows of grain rows, A cutting blade guide (6) having a plurality of adjustment holes formed vertically on the lower side of the weed support rod (4 ) and attached to the cutter bar (25) on the upper surface of the fixed receiving blade (5a) The blade (5b) is overlapped and slidably pressed by the blade presser (26) to constitute the reaping device (5), and the reaping device (5) is divided into left and right, and the left and right reaping left and right mounting stearyl provided inside of the apparatus (5) - (7, 7 ') when secured to the mounting base (17) of said cutting device the rear of the (5) co The left and right mounting stearyl - (7, 7 ') the rear portion of the extended forwardly mounted on both sides of the cutter blade guide (6), cutting the supporting arms provided outside of the apparatus (5) (16) Is pivotally attached to a flange (18) connected to the side end of the cutting blade mounting member (3) and the front portion of the support arm (16) is mounted to the cutting blade guide (6). The left and right mowing devices (5) are supported so that the cutting height can be adjusted by a plurality of adjustment holes drilled in the cutting blade guide (6) , and the support arm (16) is viewed in plan view. behind Rutotomoni該張out section projecting portion (22) provided posterior extent sequentially overhanging outward from the outer ends of the right and left of the left and right cutting device (5) to induce a strain base of culms outward in (22) The mounting bolt (23) is positioned on the left and interlocked with the harvesting transmission device (1). A linkage (21, 21 ') linked from the right crank device (19, 19') via a crank rod (20, 20 ') is linked to a cutter bar (25, 25) to a cutting device (5 ) And the left and right sliding cutting blades (5b) are configured to reciprocally swing left and right, and are raised from the left and right sides of the cutting transmission device (1) so that the transmission shaft (42) is directed upward. An extension is provided, and a power take-out part (44) is provided in the upper and lower intermediate part of the pulling transmission shaft (42) to transmit the culm scraping and conveying device (45) from the power take-out part (44), Further, it is raised from the upper part of the transmission shaft (42) and is caused to pass through the continuously variable transmission (43) and the stepped transmission (47) to transmit the horizontal shaft (48). ) via hanging shaft (49) from a configuration in which transmission of each grain稈引caused device (46), the transmission of the stepped (4 ) By manual operation so that the speed can be changed between high speed and low speed, and the above-mentioned continuously variable transmission (43) is automatically shifted according to the degree of lodging of the culm to raise the speed. A harvester for a combine, characterized in that it can be automatically shifted.

Images