JPH11299328A - Reap pretreating apparatus for combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of conventional combine unable to perform the one-touch attaching and detaching of a reap pretreating apparatus connected to the front part of a mobile machine body in the case of detaching the apparatus from the body. SOLUTION: This combine is provided with a reap pretreating apparatus 3 attached in a vertically movable state to the front part of a mobile machine body 2 loading a thresher 1. The reap pretreating apparatus 3 has a reaping frame 6 as a principal member. The reaping frame 6 is pivoted at its rear part to the mobile machine body 2, provided with a transmission box 4 connected to the front part of the frame and contains a reaping transmission shaft 5 extended in the frame. The middle part of the reaping frame 6 is supported on the mobile body 2 with a reaping lift cylinder 7, a reaping apparatus 8 and a front transfer apparatus 9 are attached to the transfer starting end of the frame in a drivable manner and a feed adjusting apparatus 10 is supported at the transfer end side of the frame in a freely adjustable state. The reaping frame 6 is dividable to the front and rear sections between the front transmission box 4 and the attaching position of the intermediate reap lifting cylinder 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvesting pretreatment device, and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, a combine has a structure in which a threshing device is mounted on a traveling vehicle body having a crawler, and a harvesting pretreatment device is connected to a front side of the threshing device to perform a harvesting and threshing operation. The combine is configured so that the pre-cutting device can be removed from the traveling vehicle body in order to facilitate maintenance such as cleaning.

[0003]

In the above-mentioned conventional combine, the cutting pretreatment device connected to the front portion of the traveling vehicle body is detached from the traveling vehicle body for maintenance such as cleaning before the cutting pretreatment device. The cutting upper and lower cylinders connecting the device to the running vehicle had to be removed. As described above, there is a problem that the pre-cutting device cannot be operated by one-touch operation when detached from the traveling vehicle body for maintenance.

[0004]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, in a combine which is configured such that a pre-cutting device 3 is provided up and down freely on a front portion of a traveling vehicle body 2 on which the threshing device 1 is mounted, the cutting pre-processing device 3 pivotally connects a rear portion to the traveling vehicle body 2. The transmission box 4 is connected to the front part, and a cutting frame 6 having a cutting transmission shaft 5 mounted inside the cutting box 6 is formed as a main member.
The intermediate portion is supported by a cutting vertical cylinder 7, a reaper 8 and a front transfer device 9 are communicatively mounted on the transfer start end side, and a supply adjusting device 10 is provided on the transfer end side so as to be freely adjustable. The reaping frame 6 is provided with an internally mounted reaping transmission shaft 5.
At the same time, the cutting pre-processing device is configured so that it can be divided and joined back and forth between the front transmission box 4 and the mounting position of the cutting upper and lower cylinders 7 in the middle.

[0005]

As described above, the present invention is constructed as described above. Therefore, when performing maintenance such as cleaning of a pre-cutting device or a front portion of a traveling vehicle body, one-touch operation of the pre-cutting device from the traveling vehicle body is performed. It has a unique effect that can be removed with. Furthermore, the present invention is much easier and easier to carry out in the mounting operation than in the conventional configuration which requires the mounting and dismounting of the upper and lower mowing cylinders.

[0006]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, the configuration will be described. As shown in FIG. 11, the combine combines a crawler 11 molded from a rubber material as a driving sprocket 12.
A threshing device 1 is mounted on a traveling body 2 having a traveling device configured to be wound around a plurality of idler wheels 13, and a mowing pre-processing device 3 is connected to a front portion of the traveling body 2. I have. The threshing apparatus 1 feeds and transports the culm from the terminal end of the pre-cutting device 3 and transports the culm.
There is a handling room with a handling cylinder mounted on the upper side, a sorting room with pressurized Karamin and a rocking sorting shelf on the lower side, as a configuration for threshing and sorting the supplied harvested grain culm. I have.

Next, as shown in FIGS. 1 and 2, the pre-cutting device 3 includes a support base 15 provided at a front portion of the traveling vehicle body 2.
And a transmission box 4 is connected to the front end of the cutting frame 6 so that the rear portion of the cutting frame 6 can be turned up and down. 6
Is a main constituent member, and each functional member is attached thereto.

The above-mentioned mowing frame 6 is provided with a mowing transmission shaft 5 mounted on the inside thereof to transmit rotational power from the transmission portion of the rear running vehicle body 2 to the above-mentioned front transmission box 4. Configuration. And the cutting frame 6
The lower part of the middle part is supported on the traveling vehicle body 2 by a cutting vertical cylinder 7 which expands and contracts by hydraulic power, and the front part can be moved up and down with the rear part as a fulcrum. And, the cutting pre-processing device 3 is provided with a weeding rod 16 at the lower front end, and an inclined grain stem raising device 17 with the starting end located at the front lower side and the end positioned at the rear upper side behind the weeding rod 16, A reaping device 8 is disposed in the lower rear portion, and furthermore, between the reaping device 8 and the starting end of the feed chain 14 described above, a scraping transport device 18 from the front side, a front transport device 9, Supply control device 10
And are arranged so that the grain culm can be successively transported. The above-described transmission box 4 is configured to transmit the respective devices (the cereal stem raising device 17, the cutting device 8, the scraping transport device 18, and the front transport device 9) at the front of the pre-cutting processing device 3. In the case of the embodiment shown in FIG. 1 and FIG. 2, only the rear supply adjusting device 10 has a transmission configuration in which the cutting frame 6 is driven from the rear side. The above-mentioned grain stalk raising device 17 has a configuration in which the raising rug 17a is raised upward from below and pivots to raise the falling grain stalk to an almost upright state.

Next, as shown in FIGS. 1 and 2, the scraping and conveying device 18 comprises a lower scraping wheel 18a and an upper scraping endless belt 18b. It is provided above the reaping device 8 and is configured to rake and transport the grain stem backward. Next, the front transfer device 9 is composed of a stock transfer chain 9a and a spike transfer lug 9b. Is transported upward and rearward, and the left and right transported grain culms are joined at the end portion.

Next, as shown in FIGS. 1 and 2, the supply adjusting device 10 is called a conventionally known handling depth adjusting chain, and the stock side 10a comprises a transport chain and a holding rod.
A tip rug is provided on the tip side 10b, a starting end is provided at a terminating end of the front conveying device 4 so as to be able to inherit the root of the transported grain culm, and is extended upward and rearward to terminate the feed chain 14
It is configured to face. And the supply adjusting device 10
Has a configuration in which the end side is pivotally connected to the cutting frame 6 and swings up and down along the culm direction of the transported grain culm. Although a detailed configuration of the control mechanism is not shown, it is configured to be controlled by a handling depth control motor as conventionally known.

[0013] The pre-cutting device 3 configured as described above.
Can be separated from the connected state shown in FIG. 2 where the normal mowing and transporting work can be performed, to the divided state where maintenance can be easily performed as shown in FIG. 1. The configuration will be described below. First, the cutting frame 6 is divided into a cutting transmission shaft 5 (a front shaft 5a and a rear shaft 5b) between the transmission box 4 side and the mounting position of the cutting vertical cylinder 7, as shown in FIG. ), The front frame 6a and the rear frame.
It is divided so as to be able to be joined to the system 6b. In this case, the cutting frame 6 is, as shown in FIG.
When the front frame 6a is brought into contact with the ground (see FIG. 1) when the cutting frame 6b is lowered to the lowermost position (when the cutting upper and lower cylinders 7 are minimized) and the front frame 6a is brought into contact with the ground (see FIG. 1), the front and rear dividing planes become vertical. Formed at an angle, and joined in the same direction as the divided surface.
The connecting mounting seats 21 and 21 'along 0' are integrally mounted. Then, the connection mounting seats 21, 2
1 'is a dowel pin 22 at the upper part of the front mounting seat 21 and pin holes 23, 2 above and below the cutting frame 6 at the lower part.
3 'is provided, and a dowel pin 2 is provided on the upper part of the rear mounting seat 21'.
2 is formed to engage with the pin holes 23 and 23 '(the front mounting seat 21).
3 and 23 '(rear mounting seat 21') and
5, 25 '.

The cutting power transmission shaft 5 is shown in FIGS.
As shown in the figure, the front shaft 5a is divided into a rear shaft 5b, a clutch claw 26 is fixed to an end of the front shaft 5a, and an operation lever 27 is attached to a corresponding end of the rear shaft 5b. It is possible to provide an operating clutch pawl 29 which is tensioned toward the clutch pawl 26 by a clutch spring 28. As described above, the front shaft 5a and the rear shaft 5b are configured such that the power can be switched on and off by the clutch including the clutch pawl 26 and the operating clutch pawl 29. Further, the front shaft 5a and the rear shaft 5b are connected to the clutch claws 26 at the respective joint ends.
And the operating clutch pawl 29, as shown in FIG.
The front frame 6a and the rear frame 6b of the cutting frame 6
When splitting or joining, if the operating clutch 27 is cut off while operating the operating lever 27 and resisting the clutch spring 28 beforehand and retracted into the rear frame 6b, any trouble will occur. Smooth separation and joining operations can be performed without any occurrence.

The operating clutch pawl 29 shown in FIG.
To facilitate understanding, one side is shown in an engaged state and the other side is shown in a disengaged state. (FIG. 3 is likewise illustrated). Next, as shown in FIG. 10, the clutch pawl 26 and the operating clutch pawl 29 form an inclined surface that is slippery in an overload state on the engagement surface of the clutch pawl 26 and the safety clutch 30.
Can be configured as That is, in the pre-cutting device 3, the culm or foreign matter may be caught or clogged by the cutting device 8 or the transport device, and may be in an overloaded state.
The transmission path may be damaged. Conventionally, as a safety device, a means for escaping by a belt slip or a section key has been employed, but there has been a problem in that post-processing requires trouble.

Therefore, as shown in the configuration example of FIG. 10, the actuating clutch pawl 29 causes the front shaft 5a due to the above-mentioned trouble.
When overload is applied to the clutch claw 26 at the shaft end thereof, it slides along the slope between the inclined surface 26a and the inclined surface 29a engaged with the clutch claw 26, and is configured to be disengaged against the clutch spring 28. ing. Therefore, when the front clutch 5a is overloaded, the operating clutch claw 29 is
, And can be disengaged from the clutch pawl 26 to interrupt the transmission.

Another Embodiment 1 Next, another embodiment 1 will be described with reference to FIGS. Another embodiment 1 is a mechanism that automatically stops the rotating parts of the pre-cutting device and the feed chain when the pre-cutting device is raised to the upper non-working position (normally 40 cm or more). Automatic stop mechanism ”.)
And an improvement in a combine having an automatic handling depth control device. This will be specifically described below.

Conventionally, when the pre-harvesting device 40 has risen from the mowing work position to the non-working position and there is no cereal culm on the transport passage, the cereal culm raising device 41, the mowing device 42, The structure is adopted in which the rotation of the transport device 43 and the feed chain 44 is automatically stopped to ensure the safety of the work and eliminate unnecessary power loss. The combine is conventionally equipped with a handling depth automatic control device provided with a handling depth adjusting chain 43a that automatically adjusts according to the length of the grain culm.

In the conventional configuration, the above two control devices are separately provided on a cereal culm conveying passage, respectively.
N switch), and the control operation is performed based on the detection result. Another embodiment 1 is configured such that the grain stalk sensor S (ON switch) of the automatic handling depth control device is also used as the grain stalk sensor (ON switch) of the automatic mowing stop mechanism. That is, when the grain culm sensor S provided on the base side of the transport passage 45 detects the grain culm, the control mechanism starts up and the control is started. Thus, the control is performed by detecting the grain stalk length. In this case, the automatic handling depth control device determines that the position where the spike portion of the cereal stem passes between the tip detection sensors A and B is the neutral zone as the optimal handling position.

On the other hand, the automatic mowing stop mechanism is configured to output a stop signal with a predetermined time delay after the grain stalk sensor S detects that the grain stalk has run out. In this case, cutting pretreatment device 40 detects that the culms sensor S is no longer culms, further after detecting the height sensor S ₁ that has been raised to a predetermined height (non-working position), The structure is such that the automatic mowing stop mechanism works.

Since the first embodiment is configured as described above, it has features that the configuration is significantly simplified and the cost is greatly reduced. Next, the operation will be described. First, after the cutting and threshing operation is completed, the pre-cutting device 3
In performing maintenance such as cleaning of the front part of the vehicle body 2 and the like, an operation of dividing the pre-cutting device 3 will be described.

The operator operates the operating lever 27 backward to release the operating clutch pawl 29 from the clutch pawl 26 while resisting the clutch spring 28 so that the rear frame 6 can be operated.
Set to the state of being pulled in to the b side. Next, the operator
The pins 25, 25 'of the connecting mounting seats 21, 21' are pulled out to be ready for division. And the pre-cutting device 3 makes the stand receive the rear part as shown in FIG.
The traveling vehicle body 2 travels backward and is divided as shown in FIG.

In this case, the cutting frame 6 is formed by the front frame.
Surfaces 20 and 2 of the front mounting seat 21 and the rear mounting seat 21 'which are mounted on the dividing surface of the frame 6a and the rear frame 6b.
Since 0 'is formed in the direction of the vertical plane, it can be easily separated. As shown in FIG. 1, the pre-cutting treatment device 3 remains on the side of the traveling vehicle body 2 together with the supply adjusting device 10 while the rear frame 6b is supported by the cutting upper and lower cylinders 7 from the state shown in FIG. , The front frame 6a is separated into two parts. This operation can be performed by a one-touch operation.

Next, after the maintenance is completed, the operation of integrally joining the pre-cutting device 3 in the divided state may be performed in the reverse of the splitting operation. First, the pre-cutting device 3 is shown in FIG. As shown, the separated front portion is kept upright by the stand, and the mowing vertical cylinder 7 is shortened and shortened from the rear thereof to prepare the rear frame 6b by lowering it to the lowest position. The operating clutch pawl 29 is set in a state in which the operating lever 27 is operated to the cut side to be drawn into the rear frame 6b.

Next, the rear frame 6b is mounted on the traveling body 2
, The rear mounting seat 21 ′ moves to approach the front mounting seat 21, and the joining surface 2 aligned with the vertical plane
0 and 20 'are joined and connected. At this time, the connecting seats 21 and 21 ′ are connected to the upper knock pin 22 and the engagement recess 2.
4, positioning is automatically performed, and the upper and lower pin holes 23, 23 'are aligned with the pins 25, 2 respectively.
5 'is inserted to complete the joining and connecting operation.

As described above, the pre-cutting device 3 comprises:
As shown in FIGS. 1 and 2, there is a feature that joining and division can be performed very easily by one-touch operation.

[Brief description of the drawings]

FIG. 1 is a side view at the time of division according to an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of the present invention.

FIG. 3 is a partially cut-away side view of the embodiment of the present invention.

FIG. 4 is a plan view of the embodiment of the present invention.

FIG. 5 is a front view of the embodiment of the present invention.

FIG. 6 is a side sectional view at the time of division according to the embodiment of the present invention.

FIG. 7 is a plan view at the time of division according to the embodiment of the present invention.

FIG. 8 is a partially cut-away side view showing the operation of the embodiment of the present invention.

FIG. 9 is a side sectional view showing the operation of the embodiment of the present invention.

FIG. 10 is a sectional view showing the operation of the embodiment of the present invention.

FIG. 11 is a side view of the embodiment of the present invention.

FIG. 12 is a plan view of another embodiment 1 of the present invention.

FIG. 13 is a side view of another embodiment 1 of the present invention.

Claims (1)

[Claims] 1. A combine having a cutting pre-processing device 3 provided up and down freely at a front portion of a traveling vehicle body 2 on which a threshing device 1 is mounted. And a transmission box 4 connected to the front part, and a cutting frame 6 on which a cutting transmission shaft 5 is mounted is formed as a main member. The cutting frame 6 is
The intermediate portion is supported on the traveling vehicle body 2 by a cutting vertical cylinder 7, and a reaper 8 and a front transfer device 9 are communicatively mounted on a transfer start end side, and a supply adjusting device 10 is freely supported on a transfer end side. The cutting frame 6 can be split and joined back and forth between the front transmission box 4 and the mounting position of the middle cutting upper and lower cylinders 7 together with the mounted cutting transmission shaft 5. Pretreatment device.