JPH0627060Y2 - Combine harvesting pretreatment device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a combine harvesting pretreatment device having a harvesting pretreatment mechanism for harvesting and raising grain culms.

[Conventional technology]

In this type of conventional combine harvesting pretreatment device, the lateral position of the harvesting pretreatment mechanism relative to the traveling machine body is constant.

[Problems to be solved by the device]

Therefore, if the pre-mowing processing mechanism is moved to the uncut side (left side) and has a form suitable for turning and cutting, in the case of a split work form in which it is cut into the planted grain culm and cut, the right-hand running The planted culm may be stepped on by the device, and conversely, if it is installed at the left-right intermediate position suitable for the split work mode, in the case of a swivel work with the uncut land on the left side,
In some cases, the left traveling device was close to the uncut grain culms, and the grain culms were pushed down by the mud extruded by the traveling device.

Therefore, in order to solve such a problem, the following configuration is conceivable and the reaping pretreatment mechanism is deviated from the traveling machine body.

That is, as shown in FIGS. 6 (a) and 6 (b), the main frame (20) facing forward and backward, which extends from the traveling machine body and also serves as a transmission case,
The horizontal transmission case (35) that supplies power to the raising device (2) and the reaping device (3) is connected via the intermediate transmission case (34), and the output shaft of the intermediate transmission case (34) ( 29) is laterally offset with respect to the output shaft (22) in the main frame (20).

Here, in accordance with the swivel cutting mode and the split mode, FIG.
As shown in (a) and (b), the output shaft (2
There is a configuration in which the left and right positions of the harvesting pretreatment mechanism (9) with respect to the traveling machine body (11) are set so that the left and right positions of the output shaft (22) in the main frame (20) are set oppositely. It was

In this case, surely, the cutting pretreatment mechanism (9) is
Although it can be laterally displaced with respect to (11), its displacement position is limited to two lateral positions in the left-right direction with respect to the main frame (20). For example, the mowing pretreatment mechanism (9) and the traveling machine body (11). If the left and right positional relationship with the model differs depending on the model, it is necessary to create an intermediate transmission case (34) corresponding to each model, and it may not be possible to secure the initial lateral movement amount due to manufacturing errors and assembly errors. is there.

An object of the present invention is to provide a finer pre-cutting treatment device capable of lateral displacement by adopting a rational position changing mechanism.

[Means for Solving the Problems]

The characteristic configuration according to the present invention is such that a pre-cutting mechanism for cutting up raised grain culms is supported on a main frame projecting forward from the traveling machine body, and a screw shaft oriented in the left and right direction and a screw engaging with the screw shaft. The joint part is arranged separately between the mowing pretreatment mechanism and the main frame, and the mowing pretreatment mechanism is configured to be laterally movable relative to the main frame by rotating the screw shaft around its axis. There is a point.

[Action]

The screwing part and the screw shaft, which move laterally relative to each other by the rotation of the screw shaft, are allocated to the pre-cutting mechanism and the main frame on the machine side. It can be arranged at any position in the direction.

Since the pre-mowing treatment mechanism moves laterally with respect to the main frame, for example, as shown in Japanese Utility Model Laid-Open No. 58-122922, the pre-mowing treatment mechanism is laterally moved together with the main frame and its bracket. Compared to moving it,
The weight of the movable part is reduced, which is advantageous in terms of drive output required for lateral movement and in terms of support strength, and it is also possible to simplify the laterally movable support structure.

[Effect of device]

Therefore, there is no restriction on the lateral displacement position of the mowing pretreatment mechanism with respect to the traveling machine body. For example, the difference between the installation positions of the mowing pretreatment mechanism and the traveling machine body depending on the model, or the mounting error of the mowing pretreatment mechanism on the traveling machine body, etc. Can be absorbed. Moreover,
The lateral movement position of the pre-mowing treatment mechanism can be changed according to the distance between the ridge and the traveling machine body, and the one with good handleability is made advantageous in terms of drive output and structure for the lateral movement. I was able to offer it.

〔Example〕

Fig. 5 shows a combine equipped with a traveling machine body (11) and a pre-mowing treatment mechanism (9), and a raising device (2) for raising planted culms sown by the weeding tool (1). , A mowing device (3) for mowing the grain culms after the raising, a packer (4) for concentrating the mowing grain culms in the center of the cutting width, and a vertical transport device for transporting the focused grain culms toward the rear threshing device (5) ( 6), including a driver's seat (7) disposed laterally of the vertical transfer device (6) and the like.

The vertical transfer device (6) is provided with a tip locking transfer device (6A) for locking the tip side and a stock holding device for holding a stock (6B), and a transfer grain culm sent in a vertical position. In front of the threshing entrance, there is a sideways transporting path (a) in which the tip side is laid down on the side opposite to the side where the feed chain (8) is present.

Next, the weeding tool (1), the raising device (2), the mowing device (3), the packer (4), etc. are referred to as a pre-mowing treatment mechanism (9), and this pre-mowing treatment mechanism (9) is a threshing device. (5) and the driver's seat (7) are horizontally slidable with respect to the traveling machine body (11). That is, the reaping device (3) is installed over the pair of left and right frames (13), (13), which also support the right and left weeding tools (1), and which also functions as the weeding tool support. Pre-cutting mechanism by sliding the orientation frames (13), (13) left and right
(9) A mechanism (14) for integrally slidingly driving the whole is provided. This sliding drive mechanism (14) consists of front and rear facing frames (13), (1
3) Left and right transmission cases (17) and (18) that erected and support the spiral shaft (15) as a screw shaft and the transmission shaft (16) inside, and the middle of these left and right transmission cases (17) and (18) Intermediate transmission case (1
9) and by fixing the intermediate transmission case (19) to the front end of the front-rear facing main frame (20) that also extends from the front end of the traveling machine body (11) and also serves as a transmission case. ) Received the power from. The intermediate transmission case (19) has a cylindrical shaft (2) splined onto the transmission shaft (16).
The bearing is supported by 1), and the bevel gear transmission mechanism is installed between the cylinder shaft (21) and the output shaft (22) in the main frame (20).
(23) is installed. An output sprocket (24) and an input sprocket (25) are attached to the ends of the transmission shaft (16) and the spiral shaft (15) located in the right transmission case (18), respectively, and the chain transmission mechanism ( 26) has been formed. The spiral shaft (15)
Forms an endless spiral groove (15A) on the outer peripheral surface, and as a screwing part that engages with this spiral groove (15A), a top member (31) formed with a protrusion protruding into the spiral groove (15A) is an intermediate part. It is fixed to the transmission case (19). Therefore, the spiral axis (1
When 5) is rotated in one direction around its axis (X), the spiral axis
(15) reciprocates in the direction of the shaft center (X), and the intermediate transmission case (1
Move left and right with respect to 9).

Therefore, the engine power is transmitted through the bevel gear transmission mechanism (23), the transmission shaft (16), and the chain transmission mechanism (26) to the spiral shaft (15).
And the pre-mowing treatment mechanism (9) is moved left and right.
A clutch sleeve (27) is spline-fitted to the end of the spiral shaft (15) [in this case, the input sprocket (25) is loosely fitted to the spiral shaft (15). ] The clutch sleeve (27) is provided with an engagement protrusion that is inserted into the engagement hole of the input sprocket (25) to integrate the clutch sleeve (27) with the input sprocket (25). The on-off clutch structure (28) is formed by the integrated disengagement action of the input sprocket (25). That is, when the shifter (32) with respect to the clutch sleeve (27) is pushed and pulled by a solenoid valve (not shown) to adjust the left and right position of the pre-mowing treatment mechanism (9), the clutch sleeve (27) is inserted into the input sprocket. The spiral shaft (15) is rotated integrally with (25). When the position adjustment is completed, the clutch sleeve (27) may be disengaged.
The output shaft (30) for the reaper (3) extends from the left transmission case (17) and the packer from the right transmission case (18).
The output shaft (33) for (4) is extended.

From the above configuration, when carrying out turning and mowing with the uncut side on the left side, the cutting pretreatment mechanism (9) is moved to the uncut side so that it is located on the left side of the traveling machine body (11). The distance between the left traveling device (not shown) and the uncut grain culm is set to be large so that the uncut grain culm is not pushed down by the mud extruded by the traveling device.

Further, in the case of splitting work, the pre-mowing treatment mechanism (9) is set substantially at the left and right center of the traveling machine body (11) so that the traveling device does not step on the planted culm. In this case, in order to prevent the uncut grass culm from falling to the side of the machine, the weeds (36) projecting to the left lateral side of the traveling machine, the pre-cutting mechanism (9)
It is mounted so that its position can be adjusted with respect to the cutting pretreatment mechanism (9), and the attachment frame (37) is linked to the main frame (20) so that it is opposite to the lateral movement direction of the cutting pretreatment mechanism (9). In the case of ridge work in which the ridge is located on the left side, the buds (36) located further to the left with respect to the cutting pretreatment mechanism (9) that moves closer to the ridge are removed from the ridge. It is configured to move away and not come into contact with high ridges.

That is, as shown in FIG. 2, if the screw shaft (15) is installed between the left and right front and rear frames (13) and (13) that support the pre-mowing treatment mechanism (9), the screw shaft (15) 15) also serves as a strength member that supports the pre-cutting mechanism (9), and the load on other frames that support the pre-cutting mechanism (9) can be reduced.

As a result, twisting of the pre-mowing treatment mechanism (9) with respect to the traveling machine body is eliminated, and the action of the raising device can be accurately performed.

[Another embodiment]

(1) The screw shaft (15) does not have a spiral groove (15A), but adopts a normal screw type such as a square screw, and provides a nut member on the intermediate transmission case (19) side. A configuration may be adopted in which the shaft (15) is rotated forward and backward by a motor.

(2) As the pre-mowing treatment mechanism (9), only the mowing device (3) may be movable left and right.

In the claims of the utility model, reference numerals are given for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an overall transmission structure configuration diagram, FIG. 2 is a cross-sectional plan view showing a lateral sliding mechanism of a mowing pretreatment mechanism, and FIG. 3 is a plan view showing a state in which the mowing pretreatment mechanism is switched to a split work mode. , 4th
The figure is a plan view showing a state in which the pre-mowing treatment mechanism is switched to the cutting work mode, Fig. 5 is an overall side view, and Figs. 6 (a) and 6 (b) show a lateral movement form of the conventional pre-mowing treatment mechanism. It is a schematic plan view shown. (9) …… Mowing pretreatment mechanism, (11) …… Traveling vehicle, (15) ……
Screw shaft, (15A) …… Spiral shaft, (20) …… Main frame, (31)
…… Coma member, (X) …… axis center.

Claims (1)

[Scope of utility model registration request] 1. A precutting mechanism (9) for cutting up raised culms
Is supported by the main frame (20) projecting forward from the traveling machine body (11), and the left and right screw shafts (15) and this screw shaft (1
The screwing part (31) that engages with 5), the pre-mowing treatment mechanism (9)
And the main frame (20) separately.
A combine pre-mowing treatment device in which the mowing pre-treatment mechanism (9) is configured to be laterally movable relative to the main frame (20) by rotation of the (15) around its axis (X). .