JPH0119635Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, a combine harvester in which the grain culm harvested in a reaping section is fed to a threshing device by a grain culm carrier, and a control section is provided on the side of the grain culm carrier, has been used. There is a drawback that the ears of the grain culm slide against the canopy guide plate provided at the top of the grain culm conveyor, causing a transfer delay, and the control section is usually located close to the pretreatment section and the supply port of the threshing device. As a result, dust flying up from the pre-processing section, dust ejecting from the supply port, straw waste, weeds, irregularly protruding ears of grain, etc. that come off the culm during reaping or transportation may enter the control section. There were flaws.

The present invention is an attempt to improve the above-mentioned drawbacks.A threshing device is installed near one side of the machine, and in front of it is a pre-processing section consisting of a grain culm lifting body, a reaping section, a grain culm conveying belt, etc. In the combine harvester, which is provided so as to be movable up and down, and a control section is provided on the other side of the pre-processing section, a guide plate is provided on the upper part of the grain culm conveying body and is inclined toward the control section, and the ear section movement path of the guide plate is provided. A shaft is provided between the control section and the pretreatment section for transmitting power to the grain culm pulling body, and the upper surface of this shaft and the control section side are bent in a direction away from the ears to be conveyed. Cover the pre-processing section with a cover attached to the pre-processing section, bend the pre-processing section side of the cover upward, and raise it above the guide plate to create a space between this raised part and the bent part at the top of the guide plate. The guide plate is configured in the ear movement space, and the end portion of the guide plate on the side of the control portion is brought close to the raised portion of the cover.

The embodiment shown in the drawings will be explained below.1
is a threshing device mounted on one side of a machine base 3 having a traveling device 2, and in front of it is a weeding body 4...
A pre-treatment section A is provided, which includes grain culm pulling bodies 5..., cutting blades 6..., raking wheels 7, 7, raking bands 8, 9..., a stock conveying chain 10, a panicle side conveying band 11, etc. The upper part of the pretreatment main frame 12, in which the shafts for driving the cutting blades 6, the raking wheels 7, etc. are installed, is connected via a gear case to a pipe 14 in which a horizontal shaft 13 is installed so that it can swing up and down. , the hydraulic cylinder 16 is the link 1
7 and 18, the pretreatment main frame 12 is vertically swung.

Further, a control section consisting of an operation panel 19 and a pilot seat 20 is provided near the other side of the machine platform 3, and the control section near the horizontal shaft 13 and the upper part of the grain culm lifting body 5 in front thereof are connected by transmission. The shaft 21 is interlockingly connected to the stock transfer chain 10 via a gear case 22.
The lower part of the vertical shaft 23 that drives the panicle side conveyance band 11 is interlocked with the horizontal shaft 13 via the gear case 15 so that it can swing up and down, so that by tilting the handling depth adjustment lever 24 back and forth, The handling depth can be adjusted.

Furthermore, a guide panel 25 such as a speed change lever, a threshing lever, a preprocessing lever, etc. is provided on the preprocessing section side of the control section, and the inner edge of the front part of the guide panel 25 is formed into a slanted part 25a.

The pretreatment section side of the cover 26, which covers the entire length of the upper surface and the control section side of the transmission shaft 21, is bent upward to stand up. Figures 2 and 3 for the
As shown in the figure, the sloped portion d is formed so as to partially cover the ear movement path.

Further, the upper part of the guide plate 27 tilted from the top of the case of the ear side conveyance band 11 toward the control section side is bent so as to be approximately horizontal, so as to be separated from the ear movement path shown in FIG. 3. Yes, bent part 27 of guide plate 27
The side edge a is close to the rising portion c of the cover 26, and the portion surrounded by the bent portion 27a and the rising portion c is configured as a spike movement space 28.

Further, the handling depth adjustment lever 24 is inserted into a guide groove 26a provided in a portion b of the cover 26 that covers the upper surface of the transmission shaft 21.

In the drawing, 29 is a feed chain, 30 is a clamping rail, and 31 is a handling depth sensor, and the handling depth is automatically controlled by vertically swinging the stock conveying chain 10 via an automatic control device based on this detection signal. You can also adjust the depth. a is a hanging portion of the cover 26.

In addition, an inlet plate 33 protruding forward from the lower edge of the supply port 32 of the threshing device 1 extends from a portion facing the rear end of the ear-side conveying belt 11 to a portion immediately before the supply port 32, as shown in FIGS. 4 and 5. It has a raised step extending over the feed chain 29 side, and from the ridge line 34 of the step, the feed chain 29 side becomes a downward slope, and the side edge is slightly lower than the feed chain 29 as shown in FIG. Because there is a feed chain 29
The middle part of the grain stem, which is conveyed by holding the base of the grain between the guide rods 35, moves while being supported by the ridge line, and even if the panicle side rises or sags, it can be easily attached to the entrance plate 33. Since the culm only slides into contact with the culm, there is no delay in transfer to the tip side, and it is possible to prevent the culm from being inserted into the handling chamber in an oblique position and causing the culm to tear or come off.

Next, to explain the action, the grain culm triggering body 5...
The grain culm raised by the raking ring 7 and the raking bands 8 and 9 is harvested by the cutting blade 6, and the harvested grain culm is transferred to the stock conveying chain 10 and the ear side conveying belt 11. It is supplied to the rear threshing device 1.

While the grain culm is being transported, the ear side of the grain culm moves while leaning against the guide plate 27, but the ear portion protrudes into the ear portion movement space 28 as shown in FIG. 3 and moves without slidingly contacting the bent portion 27a. , dust etc. ejected from the pre-processing section A and the supply port 32 of the threshing device 1 are prevented from entering the control section by the cover 26.

Furthermore, even if abnormally long grain culms or grains longer than grain culms are mixed in the harvested grain culms being transported, they are blocked by the rising portion c of the cover 26; The collected dust and the like are blown back into the pretreatment section A along the slope d. Further, the weeding section, cutting section, etc. can be visually recognized during the work through the gap between the cover 26 and the slanted section 25a of the guide panel 25.

As mentioned above, the present invention provides a threshing device near one side of the machine, and in front of the threshing device, a pre-processing section consisting of a grain culm lifting body, a reaping section, a grain culm conveying belt, etc. is provided so as to be movable up and down, and the pre-processing section In a combine harvester provided with a steering section on the other side, a guide plate is provided on the upper part of the grain culm conveying body and is inclined toward the steering section, and the ears are conveyed through a portion corresponding to the ear section movement path of the guide plate. A shaft is provided between the control section and the pretreatment section for transmitting power to the grain culm raising body, and the upper surface of the shaft and the control section side are covered with a cover attached to the pretreatment section; The pre-processing part side of the cover is bent upward and raised above the guide plate, and a space for moving the ear part is formed between this raised part and the folded part at the upper part of the guide plate, and the guide Since the end of the plate on the side of the control section is brought close to the upright part of the cover, the ears of grain to be conveyed do not come into contact with the transmission part to the grain culm lifting body, and can move within the ear movement space. It moves with less sliding resistance, and delays in transferring the tip portion can be prevented as much as possible.

In addition, since the end of the guide plate on the control section side is close to the upright part of the cover, dirt, straw, dust, etc. generated in the lower reaping raking section fly upwards and spread to the control section. This prevents soil, straw, and other dust generated in the pretreatment section from entering the control section even when the high mowing is adjusted because the cover also rises accordingly. can be operated in a sanitary environment.

Furthermore, even if abnormally long grain culms or weeds are mixed into the grain culms being transported, they will come into contact with the rising part of the cover and will not enter the control section, so they will not injure the hands operating the control levers, etc. There is no.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the combine, Figure 2 is a perspective view of the main parts, Figure 3 is a sectional view taken along line A-A in Figure 2, Figure 4 is a perspective view of the supply section, Figure 5 is Figure 4. It is a BB sectional view of. A...Pretreatment part, 5...Grain culm promoter, 11...
Corn side conveyance belt, 19...operation panel, 26...cover,
27... Information board, c... Rising section.

Claims (1)

[Scope of utility model registration request] A threshing device is provided near one side of the machine, a preprocessing section consisting of a grain culm lifting body, a reaping section, a grain culm conveying belt, etc. is provided in front of the threshing device so as to be movable up and down, and a control section is provided on the other side of the preprocessing section. In the provided combine harvester, a guide plate is provided on the upper part of the grain culm conveyor and is inclined toward a control section,
A portion of the guide plate corresponding to the ear movement path is bent in a direction away from the ears being conveyed, and a shaft is provided between the control section and the pretreatment section for transmitting power to the grain culm pulling body. The upper surface of the shaft and the control section side are covered with a cover attached to the preprocessing section, and the preprocessing section side of the cover is bent upward and raised above the guide plate to separate the raised section and the top of the guide plate. 1. A grain culm guide device for a combine harvester, characterized in that an ear part moving space is formed between the bending part of the guide plate and the control part side end of the guide plate is brought close to the upright part of the cover.