JPS5836929B2 - reaping harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to reaping and harvesting machines such as combines and binders.

This type of reaping and harvesting machine performs reaping and harvesting work by moving the machine along a row of planted stem culms. In the case of combine harvesters, I often carry out various tasks such as changing bags in the threshing grain bagging section and releasing full bags, when I notice that the machine has reached the end of one stroke. Otherwise, there is a risk that the aircraft will continue to advance and hit a ridge or the like.

The present invention aims to solve the above problems and provide a reaping/harvesting machine capable of performing smooth reaping work even when the planted stem culms are planted in an irregular manner.

Embodiments of the present invention will be described in detail below with reference to the drawings.

The figure shows a walking vehicle in which a reaping section 4 is connected to the front part of a main body consisting of a rear engine 1, a traveling transmission case 2 to which power is transmitted from the engine 1, a control handle 3 extending rearward, etc. Indicates a type binder.

Then, this binder is moved along a single stem culm row in which the body is planted using a pair of left and right running wheels 5, 5 as a running device which are pivotally supported by the running mission case 2. In the reaping section 4, the planted stem culm is pulled up using a lifting device 6 installed obliquely at the front part, and the base end of the plant is harvested, and then the cut stem culm is pulled along the guide cover 7 to one side of the machine body. The structure is such that the stems are transported toward the side, fed into the binding device 8, bundled in appropriate amounts, and the bundled stem culms are discharged to the side and outside of the fuselage.

Power transmission from the engine 1 to the traveling transmission case 2 is performed by a winding transmission belt 9, and a swinging arm 10 is pivotally connected to the tip of the swinging arm 10 swinging around a fixed fulcrum. Tension pulley 11
are arranged opposite to each other, and a transmission clutch 12 is configured that connects and disconnects power transmission by approaching and separating the tension pulleys 11.

This transmission clutch 12 not only intermittents power transmission to the traveling transmission case 2 to switch the traveling wheels 5, 5 between a traveling state and a traveling stopped state, but also transmits power from the traveling mission case 2. It is constructed as a main clutch that switches the reaping section 4 between an operating state and a non-operating state by intermittent transmission of the power to the reaping section 4.

Power is transmitted from the traveling mission case 2 to the reaping section 4 via a transmission belt 13, and opposite to the transmission belt 13 is an approach/separation oscillator pivotally supported at the tip of a oscillating arm 14. Moving tension pulley 15
are arranged facing each other, and a reaping clutch 16 is constructed which is important for transmitting power by approaching and separating the tension pulleys 15.

As shown in FIG.
4 is provided with abutting receiving parts 10a, 14a, and opposite to these abutting receiving parts 10a, 14a is a partially disk-shaped part fixed to a rotating operation shaft 36 as one operated part. A cam plate 37 is provided.

Then, the cam plate 37 is rotated by rotating the operating shaft 360.
A posture in which the contact receiving portions 10a and 14a are not brought into contact, a posture in which the contact receiving portions 10a are brought into contact only, and both contact receiving portions 10a.
.
.

Further, the operating shaft 36 is provided with first and second electric motors 3 that rotate the shaft 36 in the forward rotation direction and the reverse rotation direction.
9 a t 3 9 b are interlocked with gears, and these first,
The second electric motors 3 9 a and 3 9 b are configured to be electrically controlled as described below.

To explain FIG. 3, for the DC power source 40, a transmission clutch operation circuit A, a reaping clutch operation circuit B,
Circuit C for first electric motor, circuit D for second electric motor
are connected in parallel.

The first transmission clutch operation circuit A is provided with a first switch 41 that can be operated to switch between three positions: manual position, disengaged position, and automatic position, and the automatic position side circuit includes:
A normally open first contact 42a of a first relay 42 (described later) and a normally open electric switch 43 that closes when in contact with the sensor 17 in the swinging position are provided behind the swing sensor 17, and further, The one relay 42 is provided which acts on both the manual position side circuit and the automatic position side circuit.

The second transmission clutch operation circuit B is provided with a second switch 44 that can be switched to three positions: automatic position, disengaged position, and manual position, and the automatic position side circuit is equipped with the swing sensor 17. This sensor 17 is activated during backward swinging posture.
A normally open type electric switch 45 is provided which closes when in contact with the first relay 42, and the normally open type second contact 4 of the first relay 42 acts in the automatic position side circuit as well as the manual position side circuit.
2b and a second relay 46 are provided.

The first electric motor circuit C includes a normally closed second circuit that comes into contact with the cam plate 37 and becomes open when the cam plate 37 swings toward the input side of the transmission clutch 12 and the reaping clutch 16. limit switch 47, the first relay 4
2, a normally open third contact 42c, and the first electric motor 3
9a and a normally open first contact 46a of the second relay 46
and a normally closed first limit switch 48 which comes into contact with the cam plate 37 and becomes open when the cam plate 37 swings toward the input side of the transmission clutch l or the input side of both transmission clutches 12, 160 are arranged in parallel. A circuit is installed.

The second electric motor circuit D includes the first relay 4.
The normally closed fourth contact 42d of No. 2 and the cam plate 37 are connected to the input side of the transmission clutch 120, or both transmission clutches 12, 1
6, the second electric motor 39b and the second relay 46 are connected in parallel with a normally open fourth limit switch 49 that is brought into contact with the fourth limit switch 49 and is in a closed circuit state when the switch oscillates. A normally closed third limit switch 50 is provided, which comes into contact with the closed second contact 46b and the cam plate 37 when the transmission clutches 12, 160 swing toward the disengaged side, thereby opening the circuit. There is.

Therefore, from the disengaged state of both clutches 12 and 16, the first
When the switch 41 is set to the manual position, the first electric motor circuit C is activated and the first limit switch 48 is activated.
The first electric motor 39a is operated until the first electric motor 39a is in the open state, and the transmission clutch 12 is switched to the engaged state via the operating mechanism 38.

At this time, when the second switch 44 is set to the manual position, the first contact 46a of the second relay 46 is closed, the first electric motor circuit C is activated again, and the second limit switch 47 is opened. The first electric motor 39a is operated until the state is reached, and the reaping clutch 16 is also brought into the engaged state via the operating mechanism 38.

Further, when the second switch 44 is set to the off position from the on state of both clutches 12 and 16, the second electric motor circuit D is activated and the second electric motor 39b is operated until the fourth limit switch 49 becomes the open state. is activated to bring only the first transmission clutch 12 into the engaged state via the operating mechanism 38.

At this time, when the first switch 41 is further set to the OFF position, the second electric motor circuit D is activated and the third
The second electric motor 39b is operated until the limit switch 50 is opened, and both electric transmission clutches 12 and 16 are turned off via the operating mechanism 38.

When the above-mentioned transmission clutch 120 is engaged and the swing sensor 17 swings backward due to contact with the planted stem culm, if the first switch 41 is set to the automatic position, the machine will perform one stroke of reaping and harvesting. When the rotation sensor 17 is in a position where it projects to the lateral force, the second electric motor circuit D is automatically activated and the transmission clutch 12 is automatically disengaged as described above, causing the aircraft to move forward. automatically stop.

Further, when the second switch 44 is set to the automatic position while the transmission clutch 120 is engaged as described above, when the swing sensor 17 swings backward, the reaping clutch 16
When the second transmission clutch 16 is in the engaged state and the rocking sensor 17 is in a sideways protruding position, an automatic manual disconnection operation state of the second transmission clutch 16 is created in which the second transmission clutch 16 is in the disengaged state.

That is, in the case of this embodiment, the required important operation of the transmission clutch 12 is performed by switching the first switch 41.

Incidentally, the first switch 41 and the second switch 44 are configured to be rotatably operated, and their installation form is shown in FIG. 4.

As is clear from the above embodiments, the reaping/harvesting machine according to the present invention detects the presence or absence of planted stem culms by using sensors installed in the front of the machine body in the operating circuit of the driving transmission clutch and the operating circuit of the reaping clutch, respectively. The clutch is turned on and off based on the detection.
The technical feature is that a switch for automatically controlling the off state and a manual changeover switch for selecting between the above-mentioned automatic control and manual control have been provided, and the following effects have been obtained.

In other words, when the planted stem culms are arranged in an orderly manner, by setting the manual changeover switch to the automatic control state, the machine can perform the required reaping work while moving along the rows of stem culms, and this Sometimes, even if you are doing something other than controlling the aircraft without paying attention to the fact that the aircraft has reached the end of one stroke, the aircraft will automatically stop and correct itself once the planted stems are gone. You can also perform other tasks efficiently.

In addition, if the planted stem culms exist in an unaligned manner, by switching the manual changeover switch to manual control and setting the driving transmission clutch to the stable engaged state, the uneven planted stem culms can be removed. By manually steering the machine according to the situation, it is possible to carry out good work without leaving any uncut leaves.

In other words, the present invention provides an automatic control work mode that prevents the machine from continuing to advance and colliding with ridges, etc. even though the machine has reached the end of reaping, and the automatic control is not activated. By configuring the clutch to be in a stable engaged state so that the work mode can be arbitrarily selected, reaping work can be performed in an appropriate work mode depending on the work conditions such as the planting state of the planted stems and culms. The point that led to this is the characteristic of Saiken.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaping and harvesting machine according to the present invention, and FIG. 1 is a plan view of a binder, FIG. 2 is a schematic side view showing the operation state of the clutch, and FIG. 3 is an electric circuit diagram. , 4th
The figure is a plan view showing the switch mounting section. 12...Transmission clutch for driving, 16...
・Reaping clutch, 17...Sensor 43,4
5...Mountain motion control switch, 41, 44...
・Manual changeover switch, A, B... operation circuit.

Claims (1)

[Claims] 1. The operating circuit A of the driving transmission clutch 12 and the operating circuit B of the reaping clutch 16 are automatically turned on and off based on the detection of the presence or absence of planted stem culms by the sensor 17 installed in the front of the machine. A reaping/harvesting machine characterized by being provided with switches 43 and 45 for controlling, and manual changeover switches 41 and 44 for selecting between automatic control and manual control.