JPH01157308A - Device for reaping pretreatment of combine - Google Patents

Abstract

PURPOSE:To smoothly carry out grain culm delivery, by providing a mechanism for setting a left and right travel of a longitudinal conveyance stating end caused by rocking of a longitudinal conveyor relatively at a smaller value than that of a reaping pretreatment mechanism. CONSTITUTION:A relay rod 69, rockable around the shaft center of an engaging rod 65 on the side of a reaping pretreatment mechanism 17 and relatively slidable to a rocking arm 67 on a longitudinal conveyor is provided between the engaging rod 65 and the rocking arm 67. Thereby the relay rod 69 can be rocked around the shaft center of the engaging rod 65 with the left and right movement of the reaping pretreatment mechanism 17 to provide a smaller transverse travel (l) of the starting end 62 by rocking of the longitudinal conveyor 6 than a traverse travel (L) of a the reaping pretreatment mechanism 17. When the reaping pretreatment mechanism 17 is transversely moved from a state in which the starting end 62 of the longitudinal conveyor 6 is positioned at a point (a) of guide levers 41, the starting end 62 can be positioned at a point (b) to a joining conveyor and to reduce positional shift to the guide levers 41.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a merging conveyance device that merges the harvested grain culms after being raised into the center of the cutting width and sends out the conveyed grain culms toward the starting end of the vertical conveyance device. The equipped pre-harvesting processing mechanism is attached to the traveling machine equipped with the threshing device so that it can move laterally to the left and right, and the combined grain culm is transported towards the threshing feed chain installed along one side of the machine. A pre-harvesting device for a combine harvester, in which a vertical conveyance device is attached so as to be swingable from side to side around a rear fulcrum axis closer to the threshing foot chain than the center of the cutting width in conjunction with the left-right movement of the pre-harvesting mechanism. Regarding.

[Conventional technology]

In the pre-reaping treatment device of this type of combine harvester, conventionally, the pre-reaping treatment mechanism is attached to the traveling machine body so as to be movable left and right by a drive device, and an engaging rod for hooking and locking is attached from the side of the pre-reaping treatment mechanism. A bracket formed with a long hole that engages with the engaging rod is extended from the vertical conveyance device side, and the vertical conveyance device is configured to swing left and right around a rear fulcrum axis as the reaping pretreatment mechanism moves left and right. (For example, Japanese Patent Application No. 175587/1987).

[Problem that the invention seeks to solve]

In this case, although the elongated hole is configured to absorb the relative movement in the longitudinal direction of the machine between the vertical conveyance device that swings from side to side and the reaping pretreatment mechanism that moves left and right, the vertical conveyance device side The bracket and the engagement rod on the reaping pretreatment mechanism side are attached without changing their posture relative to the attached vertical conveyance device and reaping pretreatment mechanism, respectively, and the starting end of the vertical conveyance device is the same as the amount of lateral movement of the reaping pretreatment mechanism. It moved laterally by the same distance to a position opposite the rear end of the center of the cutting width of the pre-cutting treatment mechanism. However, as shown in FIG. 1, the further the reaping preprocessing mechanism (17) moves laterally to the position away from the threshing feed chain (38), the more ), the degree of refraction between the conveyance path along the longitudinal direction of the machine and the path of the vertical conveyance device (6) that is inclined with respect to the longitudinal direction of the machine increases, and there is a risk that the grain culms may not be transported smoothly. Ta.

The object of the present invention is to rationally set the horizontal movement amount required for the swinging of the starting end of the vertical conveyance device relative to the lateral movement amount of the reaping pre-processing mechanism, and to move from the merging conveyance device to the starting end of the vertical conveyance device. The purpose of the present invention is to provide a device that enables smooth delivery of grain culms.

[Means for solving problems]

The characteristic configuration according to the present invention is that a guide rod that feeds the grain culm to the starting end of the vertical conveyance device in an attitude inclined from the rear end of the cutting width center of the reaping preprocessing mechanism toward the starting end of the threshing feed chain is fixed to the reaping preprocessing mechanism, and The present invention is equipped with a mechanism that sets the amount of left and right movement of the vertical conveyance start end caused by the swinging of the vertical conveyance device smaller than the amount of left and right movement of the reaping pre-processing mechanism, and its effects are as follows. .

[For production]

In other words, as shown in FIG. 1, for example, as shown in FIG. By providing a relay iron (69) between the side swing arm (67) that is swingable around the axis of the engagement rod (65) and slidable relative to the swing arm (67). As the reaping pre-treatment mechanism (17) moves from side to side, the relay rond (69) swings around the axis of the engagement rod (65), and the starting end (6a) is moved by the swinging of the vertical conveyance device (6). ) can be made smaller than the lateral movement amount (L) of the pre-reaping treatment mechanism (17). Therefore, in connection with the fact that the conveyance path of the vertical conveyance device (6) corresponds to the inclined state from the center of the cutting width to the left and right ends, the conveyance path starting point of the vertical conveyance device (6) from the merging conveyance device (4) Insert the guide rod (4) toward the part (6a).
1) is installed in an inclined position, so the guide rod (41)
At the point (a) in the vertical conveyance device (6) starting end (6a)
When the reaping pre-processing mechanism (17) is moved laterally from the initial position where the reaping pre-processing mechanism (17) is positioned, the starting end (6a) of the vertical conveying device (6) is moved closer to the center of the cutting width than the point (a) above and the merging conveyance is performed. It can be positioned at the point (II) closer to the device, and the positional deviation with respect to the guide rod (41) can be minimized.

〔Effect of the invention〕

As a result, even when the reaping pre-treatment mechanism is located at the center of the cutting width and the conveyance path is strongly bent, the degree of bending at the tip can be alleviated, and the sloped fixed guide rod is effectively used to achieve smoother cutting than before. It was now possible to transport it to

Based on the above configuration, when mowing in wet fields where the crawler traveling device sinks and discharges mud, which has a large impact on uncut grain culms, the reaping pre-treatment mechanism is extended to the uncut grain culm side and performs mid-splitting work. In some cases, the pre-harvest treatment mechanism can be moved to the center of the cutting width, and the right crawler traveling device can now be used to prevent the uncut grain culm from being trampled.

〔Example〕

As shown in Fig. 5, the combine harvester includes a pulling device (2) that pulls up the planted grain culms that have been divided by the weed cutting tool (1), and a reaping device (3) that reaps the grain culms after being pulled up. , a left and right backer (4A) as a merging conveyance device (4) for converging the reaped grain culm in the center of the cutting width, a conveyance bell I-(4B) with left and right protrusions, and a feed chain (38) for threshing the converged grain culm. It is equipped with a reaping pre-processing device consisting of a vertical conveyance device (6) etc. that conveys the grain toward the rear threshing device (5), and a driver's seat (7) arranged on the lateral side of the vertical conveyance device (6). It is configured.

The above-mentioned weeding tool (1), pulling device (2), and reaping device (
3), the merging conveyance device (4), etc. are collectively referred to as a reaping pretreatment mechanism (17), and the lateral sliding structure of this reaping pretreatment mechanism (17) with respect to the traveling machine body (9) will be explained. As shown in FIGS. 3 and 4, a vertical frame (10) is erected at the front end of the traveling aircraft (9).
10) A horizontal transmission case (11) is rotatably supported on the upper end of the transmission case (11) around its horizontal axis. The main frame (12) with the aircraft facing forward and backward is fixed to the outer circumferential surface of this sideways transmission case (1 piece), and the sideways transmission case (1 piece) is
The transmission shaft (13) of 1) and the transmission shaft (14) of the main frame (12) are connected by a bevel gear mechanism (15), and the transmission shaft (13) of the horizontal transmission case (11) is connected to the transmission shaft (14) of the main frame (12). ) receives power from the engine (not shown) and transmits it to the transmission shaft (14) in the main frame.

A support case (1) is provided at the tip of the main frame (12).
6) is provided, and a reaping pretreatment mechanism (17) is attached to this support case (16).

The reaping pre-treatment mechanism (17) in this tip support case (16)
) mounting structure will be explained. As shown in Figures 3 and 4, the main frame (12) of the tip support case (16)
The mounting part has a sliding shaft (18
) is supported by a bearing so that it can slide in the direction of its own axis (X), and a passive bevel gear (19) is attached to the hexagonal intermediate portion, and a driving bevel gear (20) is attached to the tip of the main frame transmission shaft (14). is fixed and the sliding shaft (18
) is formed. This passive bevel gear (19) is fitted onto the hexagonal middle part of the sliding shaft (18) so that it can rotate integrally with the bearing (21).
It is rotatably supported by the distal end support case (16) via the distal end support case (16), and is configured to allow lateral sliding of the sliding shaft (18). The left and right ends of the sliding shaft (18) protruding left and right from the tip support case (16) are provided with a lifting device W (
2) , (2) are provided with bevel gear transmission mechanisms (22) , (22) that supply power to .

On the front side of the sliding shaft (18), a pipe-type first sliding frame (23) is pivotally supported via bushes (24) and (24) to the tip support case (16) so as to be able to slide laterally. At the same time, left and right support frames (2) have left and right weeding tool support rods fixed to the left and right ends protruding from the tip support case (16).
5) and (25) are connected and fixed.

Moreover, further forward of the first sliding frame (23), a second sliding frame (26) is provided with a left and right support frame (25).
, (25), and is inserted from the front opening side into a holder (27) having a substantially U-shaped cross section and extending further forward from the front end of the support case (16), and is supported by a loose fit; It is configured to be able to slide laterally relative to the holder (27).

Next, the lateral sliding drive device of the reaping pretreatment mechanism (17) will be explained. As shown in FIGS. 3 and 4, a screw shaft (28) with a large lead angle is inserted horizontally into the tip support case (16), and
6) A female screw member (29) that engages with the screw shaft (28) is provided on the left side surface.

The left end of the screw shaft (28) is connected to the left support frame (25).
), and a driven beher gear (30) is attached to the tip protruding from the left support frame (25). On the other hand, a drive motor (32
) is installed, and the downward output shaft of the drive motor (32) and the screw shaft (28) are connected to the downward transmission mechanism (
33) is a transmission connection via a transmission shaft. In the figure, (34) is a driving bevel gear that is attached to the lower end of the transmission mechanism (33) and meshes with the driven bevel gear (30).

On the other hand, as shown in FIGS. 3 and 5, the sliding shaft (1
8) covering the hevel gear transmission mechanism (22) provided at both ends with the first bevel gear case (35),
This first bevel gear case (35) is used as a support stand to raise the transmission case (59), and a second bevel gear case (37) is provided in the middle of this raised transmission case (59). The power is branched from the second bevel gear case (37), and the protruding conveyor belt (4B) and the q packer (
A branch structure is formed to supply power to 4A). Then, extend the mounting base from this second bevel gear case (37).

A drive motor (32) is attached to this mount.

Next, the handling depth adjustment device will be described in detail. As shown in FIG.
A) and a stock clamping and conveying device (6B), which is capable of vertically swinging around the axis of the horizontal transmission case (11), and serves as a rear vertical support shaft raised from the horizontal transmission case (11). The transmission shaft (43) can swing left and right around the axis. A motor (44) with a worm reducer is attached to the main frame (12), and a two-circular gear (46) is attached via a bracket (45), and the motor output shaft pinion (47) and the A-circular gear (46) are attached to the main frame (12). 46) are engaged, and the 2-circular gear (46) swings up and down around the horizontal axis (Y), and the drive unit can swing together with the A-circular gear (46) at the horizontal axis (Y) position. The arm (49) is connected to the case (56) of the ear tip locking and conveying device (6A) via the connecting rod (48), and the vertical conveying device (6) is configured to be able to swing up and down.

On the other hand, as shown in Fig. 5, the stock clamping and conveying device (6B)
A pair of upper and lower contact type sensors is installed on a hanging frame (50) which is provided around the upper part of the conveyance path to suspend and support a clamping rail for the grain culm being conveyed by the vertical conveyance device (6). It is configured as a culm length sensor (51). In other words, the tip of the grain culm to be transported should exactly pass the vertical intermediate position of the re-contact type sensor (by vertically swinging the vertical transport device (6), the clamping position of the stock clamping transport device (6B) can be adjusted according to the length and width of the frame. The processing depth can be controlled so that the length of the grain thrown into the threshing device (5) is a set length at a constant position from the tip of the ear.

Next, the left-right swing structure of the vertical conveyance device (6) will be explained.

A vertical transmission case (52) is fixed to the horizontal transmission case (11) to support the transmission shaft (43) for the vertical conveyance device, and a stock clamping and conveyance device is installed at an intermediate position above and below the transmission shaft (43). (53) and a drive sprocket I- (54) for the ear tip locking and conveying device are fitted to the upper end of the drive sprocket I- (54) so that they can rotate together.

The upper half of the vertical transmission case (52) has a wall only on the rear side of the transmission shaft (43) for the vertical conveyance device, and a rotating frame ( 5
5) and its frame (55) is supported by a bearing on the transmission shaft (43) for the vertical conveyance device.

With respect to this rotating frame (55), the ear tip locking and conveying device case (56) and the stock clamping and conveying device case (57) are connected to each other.
By attaching these, the ear tip locking and conveying device (6A) and stock head clamping and conveying device (6B) are configured to be able to swing left and right as one unit.

On the other hand, as shown in Fig. 2, the left and right support frames (25)
, (25) and a lifting device (2) for horizontal sliding.
The lifting transmission case (59) and (59) are raised to the left and right, and the conveyor bell with a right locking pawl)
(4B) and the right packer (4^) are rotatably fitted loosely into the vertical support shaft (61), which is pulled up to the right via the horizontal rod (68) and suspended and supported by the transmission case (59). It is. The right packer (4A) is rotated by constant engagement with the left packer (4A), and the right packer (4A)
) The rotational driving force is supplied to the driving pulley of the conveyor belt (4B) with a locking claw, which is interlockingly connected to the connecting cylindrical case (63).

The interlocking mechanism (60) that interlocks the reaping pre-processing mechanism (17) and the vertical conveyance device (6) will be explained.

As shown in FIGS. 1 and 2, this linkage mechanism (60)
, an engaging rod (65) to be described later, a swinging arm (67) that swings vertically and horizontally integrally with the vertical conveyance device (6), and an engaging rod (65) and a swinging arm (67). It consists of a relay rond (69) that connects the The engaging rod (65) is '#1
wt, the bracket (64) is formed in a curved shape so as to be located on an arc line centered on the rear horizontal support shaft (13) of the transmission device (6), and its upper end is pulled to the right and extended from the transmission case (59). ), and its lower end is secured to a protrusion of the upper cover (66) of the right conveyor belt (4B) with a locking claw.

The swing arm (67) is fixed to the swing frame (55) via a bracket l-(42), and has a sliding boss (71) fixed to its tip.

The relay rond (69) has one end connected to the engagement rod (65).
A moving boss (69
a), and the rod portion (69b) extending rearward from the moving boss (69a) is slid relative to the sliding boss (71) in the axial direction of the rod portion (69b). It is configured so that it can be inserted and installed.

Furthermore, since the moving boss (69a) at one end of the relay rod (69) is fitted onto the outside of the engaging rod (65) so as to be able to swing from side to side around the axis, as shown in FIG. , the reaping pre-treatment mechanism (17) from the intermediate split state in which the starting end (6a) of the vertical conveyance device (6) is positioned along the conveying grain culm guide rod (41) extended from the merging conveyance device (4). When the sliding rod (69) is moved laterally to the left side to adopt a circular mowing mode,
is rotated to the right around the axis of the engaging rod, and the vertical conveyance device (6) starting end (6a) is moved horizontally by 4t (I is the reaping pre-treatment mechanism (
17) Lateral movement! (L), and the positional change with respect to the conveying grain culm guide rod (41) is small.

As described above, the linkage mechanism (60) such as the sliding rod (69) is connected to the starting end of the vertical conveyance device due to the swing of the vertical conveyance device (6) with respect to the left-right movement amount (L) of the reaping pre-treatment mechanism (17). (6a)
The left and right movement M(12>) is set to a small value.

[Another example]

■ In the above embodiment, the lateral movement drive device is provided on the reaping pretreatment mechanism (17) side, but the '#i conveyance device (6)
A drive device may be provided on either side, or a drive device may be provided on both sides.

■ A mechanism (60
) includes a vertical conveyance device (6) and a reaping pre-treatment mechanism (1).
The driving screw shaft (28) in 7) may have different pitches and 7 pitches. Alternatively, a configuration may be adopted in which a hydraulic cylinder is used as the drive device, and the diameter of the cylinder on the vertical conveyance device (6) side is made larger to equalize the amount of oil applied.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaping pre-treatment device for a combine harvester according to the present invention, and FIG. 1 is a plan view showing the horizontal movement of the reaping pre-treatment mechanism and the swinging of the vertical conveyance device linked thereto, and FIG. 2 is a vertical view. A partially cutaway side view showing the horizontal and vertical swing drive structure of the conveyance device, Fig. 3 is a cross-sectional plan view showing the lateral sliding drive structure of the reaping pre-processing mechanism, and Fig. 4 is a lateral view of the reaping pre-processing mechanism. FIG. 5 is a longitudinal side view showing the sliding drive structure, and FIG. 5 is an overall side view. (4)... Merging conveyance device, (5)...
Threshing device, (6)... Vertical conveyance device, (17)
..... Reaping pre-processing mechanism, (38) .... Threshing feed chain, (60) ..... Mechanism for setting small.

Claims (1)

[Claims] A reaping pre-processing mechanism (17) is equipped with a merging conveyance device (4) that merges the harvested grain culms after being raised into the center of the cutting width and sends out the conveyed grain culms toward the starting end of the vertical conveyance device (6). , is attached to the traveling machine equipped with the threshing device (5) so as to be movable left and right, and vertically transports the merged grain culm toward the threshing feed chain (38) installed along one horizontal side of the machine. The device (6) is connected to the reaping pre-treatment mechanism (17).
), the rear fulcrum shaft (43) is closer to the threshing feed chain (38) than the center of the cutting width.
This is a pre-harvesting device for a combine harvester that is attached so as to be able to swing from side to side around the periphery, and is conveyed vertically in a posture that is inclined from the rear end of the center of the cutting width of the pre-harvesting mechanism (17) toward the starting end of the threshing feed chain (38). The guide rod (41) that feeds grain culms to the starting end of the device is fixed to the pre-harvesting mechanism (17), and the vertical conveying device (6) is controlled to swing relative to the amount of left-right movement of the pre-harvesting mechanism (17). A reaping pre-treatment device for a combine that is equipped with a mechanism that reduces the amount of left-right movement of the starting end of vertical conveyance caused by this.