JPH0325535Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for dispersing chemicals, etc. in a combine harvester.

Conventional technology Conventionally, a chemical spraying device was attached to the rear of the culm cutting cutter attached to the rear of the combine harvester.
A method has been proposed in which chemicals and fertilizers are sprayed on cut straw cut with a cutter during reaping work to promote decomposition of the cut straw (for example, Utility Model Publication No. 57-1695, etc.).

Problems that the invention aims to solve However, placing a heavy chemical spraying device that includes a tank behind the cutter has the disadvantage of disrupting the front-to-back balance of the combine and reducing wet field performance. Recently, an attachment called a knotter cutter has also been provided, in which a knotter is integrally connected to the rear of the cutter so that the cutting and binding of culms can be switched and used as necessary. Sometimes, the knotter part gets in the way, making it difficult to attach the device for dispensing chemicals, etc.

Means to Solve the Problems Therefore, in the present invention, a lower cover that guides the cut straw discharged from the cutter is positioned below the cutter and detachably connected to the outer frame of the cutter, and a medicine etc. is applied to the lower cover. The above-mentioned problems are attempted to be solved by installing a storage tank.

Function: The tank for the chemical spraying device does not protrude behind the cutter and is placed below the cutter, so it has little effect on the front-back balance of the combine harvester and prevents deterioration of wet field performance as much as possible. Ru. In addition, depending on how often the cutter is used, the chemical spraying device can be installed and removed by simply replacing the lower cover, and installation space is also a problem when setting up a knotter cutter that can perform both cutting and binding with one attachment. A device for dispersing chemicals, etc. can be easily installed on the aircraft without having to do so.

Embodiment 1 is a cutter attached to the rear part of a combine harvester A, and a knotter 2 is integrally connected to the upper part of the rear part to form a knotter cutter B. 3 is a switching plate installed above the cutter 1 so that it can be raised and lowered freely;
The waste culm transferred to the rear of the machine by the straw removal chain 4 is selectively supplied to either the cutter 1 or the knotter 2. 3a is its operating lever. 5 is located below cutter 1 and cutter 1
A lower cover is removably connected to the outer frame 1a of the cutter 1 through a tightening device 6 such as a bolt or nut, and the lower cover 5 guides and discharges cut straw discharged from the cutter 1 to the already mown side of the field. It's getting old.

C is a chemical spraying device for spraying a decomposition accelerator such as a chemical or fertilizer to cut straw, and this chemical spraying device C includes a tank 7 for storing chemicals, a pump 8,
It consists of a drug-conducting pipe 9, a nozzle 10, etc., and is integrally attached to the lower cover 5 as an assembly. As an illustrated example, a tank 7 is fixed to the outer surface of the lower cover 5 on the input pulley 11 side of the cutter 1, and is positioned above the tank 7 and pivoted to the lower cover 5 via a fulcrum shaft 12a so as to be vertically movable. A pump 8 is attached to the free end side of the tight arm 12, and the pump 8 is operated by pressing the drive roller 8a of the pump 8 against the outer peripheral surface of the cutter input pulley 11 (belt). (See Figures 1 and 3)
In this case, the tight arm 12 and the switching plate 3 are connected via a rod 13, and the drive roller 8a of the pump 8 is used only when the discharge culm is supplied to the cutter 1.
is rotated to pump up the chemicals, etc. in the tank 7 through the suction pipe 14, and spray them onto the cut straw in the field from a plurality of nozzles 10 located at the lower end of the rear panel 5a of the lower cover 5 and arranged in the width direction. It's becoming like that. 3a is a rotational fulcrum shaft of the switching plate 3.

In the case shown in FIGS. 4 to 7, the tank 7 is attached to the lower cover 5 so that it can be inserted into and removed from the rear, and the tank 7 and the nozzle 10 are attached to the cutter 1.
In this structure, the nozzle 10 is fixed downward to the switching plate 3, and the pump 8
is fixed to the rotation fulcrum shaft 3a of the switching plate 3.
As shown in FIG. 4, when the drive roller 8a of the pump 8 is in pressure contact with the input pulley 11 (belt) of the cutter 1, the pump 8 is operated, and the fifth As shown in the figure, when the exhaust culm is in the collapsed position for supplying the culm to the dropper 15 side, the drive roller 8a separates from the input pulley 11 (belt) and the operation of the pump 8 is stopped, and the pump 8 is switched. It is configured to operate in conjunction with the plate 3. In addition, lower cover 5
Although the method of fixing the tank 7 to the tank 7 is not shown in the drawings, any known method such as bolting, fastening, or banding may be used. In the figure, a indicates the culm, and b indicates the cut straw cut with the cutter 1.

In the above-mentioned configuration, when the knotter cutter B is set on the machine body as an attachment as shown in FIGS. 1 to 3, the frequency of use of the cutter 1 varies depending on the manner of processing the culms and the type of reaping work. For example, there are differences in the case where cutter 1 is used only for circular cutting and splitting, and the knotter 2 is used for other purposes, and the case where cutter 1 is used over the entire field. There is no need for the chemical spraying device C, but it becomes necessary in the latter case. Accordingly, in response to these requests, we offer lower cover 5 with a chemical spraying device C (see Figures 1 and 3) and a lower cover 5 with no sprayer C (see Figure 2). ) are prepared, and simply by replacing the lower cover 5 with one of them, the chemical spraying device C can be installed and removed at the same time, so any case can be handled easily and quickly. In addition, the chemical dispersion device C, especially the bulky and heavy tank 7, is placed under the lower cover 5 of the cutter 1, instead of behind the cutter 1 as in conventional devices.
Since it is attached to the combine harvester, when setting the knotter cutter B, the spreading device C can be easily installed without having to worry about installation space, etc., and there is less impact on the front-rear balance of the combine harvester, which would otherwise deteriorate wet paddy performance. Not at all. Furthermore, since the tank 7 is arranged at a low position, it is easy to replenish medicines and the like.

Effects of the Invention As described above, the present invention is a combine harvester equipped with a chemical spraying device attached to the traveling machine that sprays chemicals or fertilizers on the cut straw cut by the cutter or on the culm before cutting, which is discharged from the cutter. A lower cover that guides the cut straw is positioned below the cutter and is detachably connected to the outer frame of the cutter.
Since the lower cover is equipped with a tank for storing chemicals, etc., there is little effect on the front-rear balance of the combine main body, and wet field performance is maintained well.
There are effects such as being able to easily replenish drugs and the like.

[Brief explanation of drawings]

Figure 1 is a side view of the main part, Figure 2 is a side view showing the state in which the lower cover is attached without the chemical dispersion device attached, Figure 3 is a partially cutaway rear view of the main part, and Figure 4 is a side view of the main part.
Figures to Figures 7 show other embodiments,
Fig. 4 is an explanatory diagram of the action of the spraying state of chemicals, etc., Fig. 5 is an explanatory diagram of the action during dropper operation, Fig. 6 is a partially cutaway rear view during dispersion, and Fig. 7 is an enlarged view showing the installation state of the pump. FIG. In the figure, 1 is the cutter, 1a is the outer frame of the cutter,
5 is a lower cover, 7 is a tank, and C is a chemical spraying device.

Claims (1)

[Scope of utility model registration request] In a combine harvester that is equipped with a chemical spraying device on the traveling machine that sprays chemicals or fertilizers on cut straw cut by the cutter or on the culm before cutting, the lower cover that guides the cut straw discharged from the cutter is placed below the cutter. What is claimed is: 1. A device for dispersing chemicals, etc. in a combine harvester, characterized in that the device is located at a cutter and is detachably connected to an outer frame of a cutter, and a tank for storing chemicals, etc. is attached to the lower cover.