JPH0215177B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a combine harvester equipped with a speed change mechanism for the handling drum in the threshing section, in which the speed change position of the handling drum by the speed change mechanism is adjusted in advance to suit the grain to be harvested. This invention relates to a speed change display device for a threshing section handling cylinder, which allows it to be easily confirmed whether or not the speed change position is at the specified speed change position before starting work.

In harvest preparation work using a combine harvester, the threshing performance during threshing differs depending on the type of grain such as rice and wheat, so it is necessary to appropriately adjust the rotation speed of the threshing section handling drum depending on the type of grain. For this reason, the power system from the engine is divided into two systems: a drive system that is transmitted to the handling cylinder via a transmission mechanism installed in the threshing section, and a drive system that is transmitted to other working parts. In many cases, only the rotational speed of the barrel can be adjusted separately from other working parts using a speed change mechanism.

However, in conventional combine harvesters, the speed change mechanism for the threshing section handling barrel is located at the rear of the machine, away from the operation control section, and by tilting the speed change lever installed at that location, Because it switches between "high", "medium" and "low" speeds,
The gear shift position can only be determined by the operation position of the gear shift lever, and as a result, workers at the operation control section often misunderstand or start work without confirming the gear shift position of the threshing section handling drum. I was afraid. Therefore, since the speed is adjusted only by the throttle lever of the engine while the gear position is not suitable for the type of grain to be threshed, overheating due to engine overload can lead to problems such as insufficient threshing capacity due to insufficient output or blockages. There was a drawback that this occurred. In addition, in order to avoid misidentification of the above-mentioned shift position, some models display the shift position with a lamp on the operation panel, but the operation panel is also equipped with various other displays, warning lamps, etc. Therefore, it is easy to misidentify and confuse them with these, and the reality is that the occurrence of erroneous operations has not yet been fundamentally eliminated.

The present invention was devised in view of the above-mentioned circumstances, and its purpose is to change the speed of the threshing section handling cylinder prior to the start of harvest preparation work, and then to change the speed of the threshing section handling cylinder. Focusing on the fact that the operation is performed in the sequence of driving each part of the work by turning on the threshing part, and from this point of view, we have developed a transmission system in which the power system is installed in the threshing part, in which the power from the engine is transmitted to each part of the work through the work part clutch. The drive system is divided into two systems, one that is transmitted to the handling cylinder via a mechanism, and the other that is transmitted to other parts of the work.Before starting work, the speed change position of the speed change mechanism installed in the threshing section is determined before harvesting. By installing a speed change indicator near the clutch lever of the working part clutch, which displays the speed change position suitable for the type of grain to be processed, the threshing part can be operated in advance so that the operator can change the speed when driving each part of the work. The type of grain that is suitable for the speed change position of the handling barrel can be checked on the speed change indicator located near the clutch lever, so that the type of grain that is suitable for the speed change position of the handling barrel can be confirmed at all times, so that the type of grain that is suitable for the speed change position of the handling barrel can always be confirmed according to the type of grain that is to be harvested. It is an object of the present invention to provide a speed change display device for a threshing section handling cylinder in a combine harvester that can start work.

The structure of the present invention will be described with reference to the embodiment shown in the drawings. 1 is a reaping section, 2 is a threshing section, 3 is a culm processing section, 4 is a traveling device, and 5 is an engine,
Grain culms harvested by a reaping section 1 as the machine advances are threshed by a threshing section 2, and the waste culms are shredded by a waste culm processing section 3 and released into the field.

6 is a driver's seat, 7 is a driving operation panel, and on one side of the driver's seat 6, there is a function for intermittent power supply to the reaping section 1, threshing section 2, culm processing section 3, and other working sections for harvest preparation. A clutch lever 8 is provided.

This working part clutch lever 8 is operated to be tilted in the front-rear direction, and the forward tilted position is the clutch "on", and the rearward tilted position is the clutch "disengaged".

The power system from the engine, which is connected and disconnected by the work part clutch lever 8, is divided into two systems: a drive system that transmits power to the threshing part 2, and a drive system that transmits power to other work parts. The threshing section handling barrel 9 is linked to the drive side via a transmission mechanism 10 provided in the drive system of the threshing section 2, and the speed change lever 11 of the transmission mechanism 10 is connected to the body of the threshing section 2 on one side. It is located at the rear. The above gear shift lever 11
constitutes three modes: a high speed position tilted forward, a medium speed position in an intermediate state, and a low speed position tilted backward, and when the shift lever 11 is in each of the high speed and low speed positions. Switches 12 and 13 which are operated by the switch are provided in the vicinity thereof. Reference numeral 14 denotes a shift indicator, and the shift indicator 14 is equipped with lamps 15, 16, and 17 that light up to indicate each shift position of the transmission mechanism 10. The types of harvested and prepared grains that are suitable for the gear shift position are indicated, for example, "wheat,""rice," and "beer." The gear shift indicator 14 is provided near the working part clutch lever 8 on the clutch "on" side, and when the working part clutch lever 8 is tilted to the "in" side, the gear shift indicator 14 is hidden by it. It's getting old.

A lighting display circuit for the speed change indicator 14 is shown in FIG. In other words, 18 is Batsuteri, 19
is a key switch, the lamp 15 of the gear change indicator 14 lights up when the switch 12 is activated when the gear shift lever 11 is placed in the high speed position, the lamp 16 lights up when the gear change lever 11 is in the middle speed position, and the lamp 17 lights up when the gear change lever 11 is in the middle speed position. The circuit structure is such that when the lever 11 is placed in the low speed position, the switch 13 is activated and lights up. Note that the key switch 19 is provided on the operation panel 7. Reference numeral 20 denotes a tachometer, which is disposed on the operation panel 7 and connected to the rotating shaft of the threshing section handling drum 9.

FIG. 8 shows another embodiment, and in this embodiment, scale indicator marks 21, 22, and 23 are displayed on the tachometer 20 for illuminating the reference rotational speed at each shift position of the transmission mechanism 10. ing.

24, 25, and 26 are those illumination lamps.

In addition, each lamp 15, 16 of the speed change indicator 14,
17 may be displayed in different colors, and the corresponding scale indicator marks 21, 22, and 23 of the tachometer 20 may be unified into the same color.

Next, the operation of the present invention constructed as described above will be explained. When starting harvest preparation work using a combine harvester, first turn on the key switch 15.
The speed change mechanism 10 is set so that the threshing section handling drum 9 has an appropriate rotational speed corresponding to the threshing property of the grain depending on the type of grain to be harvested and prepared, for example, rice, wheat, beer wheat, etc. Shift the gear shift lever 11. For example, in the case of rice, the threshing section handling cylinder 9 is set to medium speed, in the case of wheat, it is set to high speed, and in the case of beer barley, the speed change lever 11 is switched to the low speed position.

At this time, the shift display 14 displays the type of grain such as rice, wheat, beer barley, etc. that is suitable for the shift position. Next, the working part clutch lever 8 is tilted forward and the clutch is engaged, and the engine 5 is set so that the rotational speed of the threshing part handling cylinder 9 reaches a predetermined value on the tachometer 20.
After adjusting the throttle lever, move the aircraft forward and begin harvest preparation work.

As mentioned above, at the start of harvest preparation work, before engaging the clutch lever 8 of the working section, the gear of the threshing section handling cylinder 9 is changed according to the type of grain, and then the clutch lever 8 of the working section is engaged. Depending on the procedure for engaging the clutch, the gear shift indicator 14 of the gear shift mechanism 10 is provided near the working part clutch lever 8, so when the operator attempts to engage the working part clutch, the gear shift indicator 14 will inevitably appear. You will see
Immediately before engaging the working part clutch, shift indicator 14
It is confirmed whether or not the type of grain that is suitable for the gear shift position displayed on the screen is compatible with the type of grain that is to be harvested and prepared. It is possible to reliably prevent the occurrence of erroneous operations by not starting the gear shift while it is still set at the gear shift position.

In addition, in the case where the tachometer 20 that displays the rotational speed of the threshing section handling cylinder 9 has scale indication marks 21, 22, and 23 that illuminate and display the reference rotational speed at each shift position, the working section clutch is engaged. After that, when adjusting the output of the engine 5 using the throttle lever, simply move the pointer of the tachometer 20 to the corresponding illuminated scale indication marks 21, 22,
23, it is possible to easily and accurately set the rotational speed of the handling drum suitable for threshing under a predetermined engine output.

In addition, each lamp 15, 16 of the speed change indicator 14,
17 and scale indication marks 21, 2 of the tachometer 20
In the case where 2 and 23 are divided into the same color,
Furthermore, confirmation and the above-mentioned operations are easier and moreover can be carried out reliably.

In short, the present invention includes a power system in which power from an engine is transmitted to each work part via a work part clutch, a drive system in which power is transmitted to the handling barrel through a transmission mechanism provided in the threshing part, and other parts. It is divided into two systems: a drive system that is transmitted to each part of the work, and a speed change display that displays, before the start of work, the speed change position of the speed change mechanism installed in the threshing section as the speed change position that is appropriate for the type of grain to be harvested. Since the device is installed in the vicinity of the clutch lever of the working part clutch, when performing harvest preparation work, the speed change position of the threshing part handling cylinder is adjusted to the proper rotational speed according to the threshing property of the grain. Although the speed change mechanism can be adjusted in advance using the provided speed change mechanism, when the worker engages the clutch of the work part and drives each work part, he or she must necessarily look at the speed change indicator located near the clutch lever. Therefore, even if the speed change mechanism installed in the threshing section is located far from the operation section, the type of grain that is suitable for the speed change position of the threshing section handling cylinder is always ready for harvesting immediately before starting work. This is an extremely useful method that allows you to check whether the grain is compatible with the type of grain, and therefore allows you to always work under appropriate conditions depending on the type of grain you are trying to harvest. This has a novel effect.

[Brief explanation of drawings]

The drawings show an embodiment of a speed change display device for a threshing section handling drum in a combine according to the present invention, in which FIG. 1 is an overall side view of the combine, FIG. 2 is a plan view of the same, and FIG. 3 is a power transmission Genealogical diagram, Figure 4 is an explanatory diagram of the relationship between the gear shift lever and switch, Figure 5 is a plan view of the gear shift indicator, Figure 6 is a lighting display circuit diagram of the gear shift indicator, and Figure 7 is a diagram of the tachometer. Plan, No. 8
The figure is a circuit diagram showing another embodiment. In the figure, 1 is the reaping section, 2 is the threshing section, 3 is the culm processing section, 5 is the engine, 6 is the driver's seat, 7 is the operation panel, 8 is the clutch lever of the working section, 9 is the threshing section handling barrel, 10 11 is a transmission mechanism, 11 is a transmission lever, 14 is a transmission indicator, 20 is a tachometer, and 21, 22, 23 are scale indication marks.

Claims (1)

[Claims] 1. A power system in which power from the engine is transmitted to each working part via a working part clutch, and a drive system in which power is transmitted to the handling barrel through a transmission mechanism provided in the threshing part;
The drive system is divided into two systems, including a drive system that is transmitted to other parts of the work, and before the start of work, the speed change position of the speed change mechanism installed in the threshing part is displayed as the speed change position suitable for the type of grain to be harvested. A speed change display device for a threshing section handling barrel in a combine harvester, characterized in that a speed change display device is provided near a clutch lever of the working section clutch.