JPH0649157Y2 - General-purpose combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a general-purpose combine, more specifically, a mowing device is provided at the front of the machine body, and the mowing device is provided with a forced weed raising device having a plurality of tines. Regarding general-purpose combine.

(Prior Art) In the general-purpose combine, the applicant of the present application has previously applied a forced weed raising device that applies a forcing action to a grain stem to the side of a mowing device provided at the front of the machine body. In addition, the forced weed raising device is interlocked with the drive system of the reaper that interlocks with the output side of the engine through an interlocking mechanism, and when the reaping work is performed by the reaper, Even if the grain culms to be mowed by the weed raising device are lying or entangled, the posture of the grain culms is corrected and feeding of the grain culms into the cutting blade is made good, and the cutting performance by the cutting blade is also good. We have proposed a method (Japanese Utility Model Application No. 62-63260)
issue).

(Problems to be solved by the invention) By the way, in the above-mentioned general-purpose combine, the forced weeding raising device is interlocked with the drive system of the reaping device through an interlocking mechanism, so that the forced weeding is performed. While it is possible to easily transmit power to the pulling device, the interlocking mechanism is configured to rotate the forced sward raising device in the forward and reverse directions in association with any of the forward and reverse rotations of the drive system. For example, if the drive system of the mowing device is rotated in the reverse direction during the repair and inspection of the mowing device, the forced weed raising device also rotates in the reverse direction. However, in the forced sward raising device, the tine is erected upward only at a specific position for raising the culm, and at other positions, the tine is tilted to be housed in the forced sward raising device case. The forced sward raising device cannot rotate in the reverse direction, and there is a problem that the tine or the like of the forced sward raising device is damaged if it is forcibly rotated in the reverse direction.

The present invention has been made in view of the above problems, and an object thereof is to eliminate the projection of the transmission system that projects to the opposite side of the driver's seat (8) provided on one side in the width direction of the base body, that is, the uncut side, The one-way clutch (7) enables the scraping drum (55) while reducing the influence on the uncut grain culms and simplifying the power transmission mechanism to the forced weed raising device (6).
The power is transmitted to the forced sward raising device (6) at the time of normal rotation of
A general-purpose combine that enables reverse rotation of the take-in drum (55) while preventing damage to the tines (61) by cutting off power transmission to reverse rotation of the take-in drum (55) is not provided. It is what

(Means for Solving Problems) According to the present invention, a platform (51), a take-up reel (53), a cutting blade (54) and a take-in are provided in front of a body (1) equipped with an engine (2). A general-purpose combine comprising a cutting device (5) provided with a drum (55) and a driver's seat (8) provided at one side in the width direction at the front of the machine body (1),
The platform (5) located outside the take-in reel (53) and on the other side in the machine width direction with respect to the driver seat (8).
A forced weed raising device (6) having a plurality of tines (61) on the side wall (51a) of (1), which are directed in the front-rear direction, a rear portion inclines upward with respect to the front portion, and protrude and move upward to move forward and backward. )
Is provided to position the rear part of the raising device (6) near the scraping drum (55), and the harvesting device (5).
On the side of the driver's seat in, a transmission mechanism for transmitting power from the engine (2) to the harvesting device (5) is provided, while on the side opposite to the driver's seat of the scraping drum (55), the scraping drum ( 55) Passive power to the forced weed raising device (6)
An interlocking mechanism for transmitting power to the drive drum is provided between the power take-out portion of the raking drum (55) and the power receiving portion of the forced weed raising device (6) in the interlocking mechanism. A one-way clutch (7) is provided for transmitting power to the forced weed raising device (6) during rotation, and interrupting power transmission during reverse rotation of the take-in drum (55).

(Operation) With the above configuration, when the operator sits on the driver's seat (8) to perform the mowing work, the driver's seat side is set as the already mown side, and the already mown side can be monitored to perform the mowing work. In addition, the projection of the transmission system protruding from the uncut side of the anti-driver's seat can be reduced, and the rear part of the forced weed raising device (6) provided on the anti-driver's side can be placed near the scraping drum (55). Position it,
Since the forced weed raising device (6) is interlocked with the take-in drum (55) through the interlocking mechanism, the distance between the forced weed raising device (6) and the take-in drum (55) can be shortened, The power from the engine (2) is taken in from the driver's seat side, and the forced weed raising devices (6) (6) and the scraping drum (5) are provided on the non-driver's side.
The power transmission mechanism can be simplified in combination with the fact that only the interlocking mechanism with 5) is used.

Then, while simplifying the power transmission mechanism in this manner, the forced weed raising device (6) is set on the drum (5
The disadvantage of linking with 5), that is, when the take-up drum (55) is rotated in the reverse direction due to some circumstances such as when repairing and inspecting the mowing device, the forced weed raising device (6) is also in the reverse direction. The problem that the tine (61) is damaged by being driven to the one-way clutch (the one-way clutch between the power take-out portion of the take-in drum (55) and the power receiver on the tine (61) side in the interlocking mechanism ( By providing 7), the reverse rotation of the take-in drum (55) is prevented from interlocking with the tine (61), the damage due to the reverse drive of the tine (61) is avoided, and the take-in drum (55) is prevented. By making it possible to reverse the rotation, it can be reliably eliminated.

Further, the forced weed raising device (6) is the side wall (51a) of the platform (51) on the side opposite to the driver's seat, and the rear part thereof is provided near the scraping drum (55). , The uncut side wall (51) of the platform (51)
a) The grain culm located above and the grain culm that is about to enter between the scraping reel (53) are promptly cultivated to be guided into the platform, and the grain culm is blocked in the transportation route. In addition, it is possible to prevent the occurrence of scratches, and further, the scraping by the scraping reel (53) can be favorably performed, and the reaping performance can be improved.

(Embodiment) A general-purpose combine according to the present invention will be described below with reference to an embodiment of the drawings.

FIG. 2 shows the general structure of a general-purpose combine. The engine (2) is mounted on the upper part of the machine body (1), the traveling devices (3) are provided on both sides of the lower body, and the upper part of the machine body (1) is provided. A threshing device (4) having a handling barrel (41) is provided, and a driver's seat (8) is provided at one side in the width direction at the front part of the machine body (1), while a cutting part is provided at the front part of the machine body (1). Each device (5) is provided.

The reaping device (5) includes a platform (51) having a pair of side walls (51a) rising upward on both sides in the lateral direction with respect to the traveling direction of the machine body (1), and the threshing from the platform (51). And a transfer chamber (52) for the harvested culm, which extends toward the device (4) side. The scraping reel (53) is rotatably supported at a position above the front side of the platform (51), and The cutting blade (54) is supported at the bottom position between the side walls (51a) of the platform (51), and the scraping drum (55) is rotatably supported at the rear bottom position of the cutting blade (54). Inside the transfer chamber (52), there is provided a chain conveyor (56) for transferring the cut culm by the cutting blade (54) to the threshing device (4) side.

Further, of the side walls (51a) of the platform (51) located on both outer sides of the take-up reel (53), one side wall (51a) located on the uncut side of the grain culm during grain culm cutting work. ),
That is, a plurality of tines (61) that move from the front side to the rear side while protruding above the side wall (51a) are provided on the side wall (51a) located on the other side in the machine width direction with respect to the driver seat (8). ) Is provided, the forced grass weed raising device (6) is inclined such that the rear side is higher than the front side, and the raising machine (6) is provided. 6) The rear portion is located near the scraping drum (55) and is supported at a position above the outside of the side wall (51a). In addition, the forced weed raising device (6) raises the tine (61) through a cam mechanism (not shown) at a specific position from the front side to the rear side, and at other positions, the tine. It is configured so that it cannot rotate in the reverse direction because the (61) is tilted and housed in the case (6a) of the forced weed raising device (6).

Then, of the side walls (51a) provided on the platform (51), the take-up reel (53), the cutting blade (54), and A transmission mechanism for transmitting rotational power is arranged on the scraping drum (55),
While the transmission mechanism is linked to the output side of the engine (2), the forced weed raising device (6) and the scraping drum (55) provided on the side wall (51a) located on the uncut side of the grain stalk An interlocking mechanism is provided between the interlocking mechanism and the squeezing drum in the interlocking mechanism while the rotational power of the scraping drum (55) is positioned in the forced weed raising device (6) via the interlocking mechanism. Power is transmitted between the power take-off unit of (55) and the power receiving unit of the forced weed raising device (6) to the forced weed raising device (6) when the take-in drum (55) is normally rotated. However, the one-way clutch (7) that cuts off the transmission of power when the scraping drum (55) rotates in the reverse direction is provided.

The interlocking mechanism is, as shown in FIG. 1, a side wall (55a) of the scraping drum (55) rotatably supported by both side walls (51a) (51a) of the platform (51) on the uncut side of the grain. Drive gear (11) provided on the drive gear (11), a drive side shaft (12) interlocking with the drive gear (11), a driven side shaft (13) interlockingly connected with the forced weed raising device (6), and a drive side shaft (12). ) And driven shaft (13)
The drive side shaft (12) and the driven side shaft (13) are rotatably supported on the same axis line in the interlocking case (10) while being connected to the intermediate shaft (14) and the like. The intermediate shaft (1) should be located on the side of the facing parts of both shafts (12) (13).
4) is rotatably supported in the interlocking case (10).

Then, as shown in FIGS. 1 and 5, the drive gear (11) is provided on the outer periphery of the drive side shaft (12) on the scraping drum (55) side.
A drive cylinder (71) having an interlocking gear (71a) meshing with the drive cylinder (71), and a driven cylinder (72) mounted inside the drive cylinder (71), and
A cam cylinder ('3) is formed between the opposed surfaces of the two cylinders (71) and (72), and a roller (74) is interposed between the two cylinders (71) and (72), and the drive cylinder associated with the forward rotation of the take-in drum (55). At the normal rotation of (71),
The driving cylinder (71) and the driven cylinder (72) are engaged with each other by the roller (74), the rotational power of the driving cylinder (71) is transmitted to the driven cylinder (72), and the driving drum (55) During reverse rotation of the drive cylinder (71) due to reverse rotation, the engagement between the drive cylinder (71) and the driven cylinder (72) is made free, and the rotational power of the drive cylinder (71) is transmitted to the driven cylinder (72). It constitutes a one-way clutch (7) that does not engage.

The one-way clutch (7) includes a drive cylinder (71).
A cam surface (73) and a roller (74) may be interposed between the driven cylinder (72) and the driven cylinder (72), or a one-way clutch having another structure such as ratchet teeth and pawls may be used. It may be arranged at any position in the interlocking mechanism.

Further, a transmission body (15) having a first gear tooth (15a) is axially movable at an end portion of the driving side shaft (12) facing the driven side shaft (13) and is integrally rotated. A driven gear (16) having a fourth gear tooth (16a) at the end of the driven side shaft (13) facing the drive side shaft (12) while being spline-fitted accordingly.
And the clutch teeth (15b) (16b) are formed on the opposing surfaces of the transmission body (15) and the driven gear (16) so as to project to move the transmission body (15) to the driven gear (16) side. The clutch teeth (15b) and (16b) can be engaged only occasionally, and the intermediate shaft (14) includes a second gear tooth (14a) that meshes with the first gear tooth (15a) and a fourth gear tooth. A third gear tooth (14b) meshing with the gear tooth (16a) is provided.

An annular groove (15c) is formed on the outer periphery of the transmission body (15), and a shift hawk (17a) of an operation shaft (17) supported by the interlocking case (10) is projected on the annular body (15c). The operation shaft (17) allows the transmission body (15) to be moved in the axial direction, and the clutch teeth (15b) (16b) are engaged with the first gear teeth (15a) and the second gear teeth (15a). It is configured to select either the engagement of 14a).

Thus, when the clutch teeth (15b) (16b) are engaged,
The driven shaft (13) in which power is directly transmitted from the transmission body (15) to the driven gear (16) is driven at high speed, and the first gear tooth (15a) and the second gear tooth (14a) are engaged. At times, power is transmitted from the transmission body (15) to the driven gear (16) via the intermediate shaft (14), and the driven side shaft (13) is driven at a low speed.

A fifth gear (18) and a sixth gear (19) are provided at the outer shaft end of the driven side shaft (13) in a replaceable manner, and the fifth gear (18) and the forcible force are provided outside. The transmission chain (20) is hung between the seventh gear (63) provided on the intake shaft (62) of the weed raising device (6) to force the power of the driven shaft (13) to the force. It is designed to be transmitted to the weed raising device (6).

A tension gear (21) is swingably supported via an arm (not shown) at an intermediate portion of the transmission chain (20) in the hanging direction, and a space between the arm and the side wall (51a) side. A spring (not shown) is interposed between the two, and the tension gear (21) constantly urges the transmission chain (20) in the tension direction.

The present invention is configured as described above, and the harvesting device (5) is provided.
In the case of performing harvesting work of grain culms by means of the above, while the power from the engine (2) is transmitted to the take-up reel (53), the cutting blade (54) and the take-in drum (55) via the transmission mechanism, The forward rotation power of the scraping drum (55) is generated by, for example, the drive gear (11) to the drive cylinder (71), the one-way clutch (7) including the cam surface (73) and the roller (74), and the driven cylinder ( 7
2), drive side shaft (12), intermediate shaft (14), driven side shaft (1
3), the power is transmitted to the forced weed raising device (6) through the transmission chain (20) and the like. By the drive of the forced weed raising device (6), even if the grain culm located on the uncut side wall (51a) of the platform (51) is in the lodging state or the entangled state, the forced weeding is performed. Raising device (6)
By this, the grain culm is promptly cultivated and its posture is corrected, and the grain culm receives a reliable scraping action by the scraping reel (53), and accordingly, the cutting performance by the cutting blade (54) is improved. It can be increased.

Then, the rotational power of the forced grass weed raising device (6) is taken out from the scraping drum (55), but the power is transmitted from the scraping drum (55) to the forced grass weed raising device (6). Between the drive cylinder (71) and the driven cylinder (72) in the interlocking mechanism, the power is transmitted to the forced weed raising device (6) when the scraping drum (55) is normally rotated, and the scraping is performed. Since the one-way clutch (7) that cuts off the transmission of power when the drum (55) is rotated in the reverse direction is provided, for example, when the cutting drum (55) is clogged with grain culms, the cutting device is stopped while the harvesting device is stopped. Even if the scraping drum (55) is rotated in the reverse direction to perform work such as removing the grain culms, the one-way clutch (7) drives the drive cylinder associated with the reverse rotation of the scraping drum (55). At the time of reverse rotation of (71), the engagement between the drive cylinder (71) and the driven cylinder (72) is made free, and the drive cylinder (71) Rotational power is not transmitted to the forced vegetation raising device (6) having a structure in which it cannot be rotated in the reverse direction, thereby preventing the tine (61) of the forced vegetation raising device (6) from being damaged. You can do it.

In the above embodiment, the rotational power of the take-in drum (55) is transmitted to the forced weed raising device (6) through the interlocking mechanism having the one-way clutch (7). For example, the rotational power of the take-up reel (53) or the chain conveyor (56) may be transmitted to the forced weed raising device (6) via an interlocking mechanism having a one-way clutch (7).

(Effects of the Invention) As described above, the present invention is the platform located outside the scraping reel (53) provided on the reaping device (5) and on the other side in the machine width direction with respect to the driver seat (8). A forced weed raising device having a plurality of tines (61) on the side wall (51a) of the (51) facing the front-rear direction, with the rear part tilting upward with respect to the front part and projecting upward to move back and forth ( 6) is provided so that the rear part of the raising device (6) is located near the scraping drum (55), and the power from the engine (2) is provided on the driver side of the mowing device (5). A transmission mechanism for transmitting the oil to the reaping device (5) is provided, while the scraping drum (55) is provided on the non-driver's side of the scraping drum (55).
The interlocking mechanism for transmitting the passive power to the forced weed raising device (6) is provided, and the power take-out part of the scraping drum (55) and the power receiving of the forced weed raising device (6) in the interlocking mechanism are provided. One part that transmits power to the forced weed raising device (6) during normal rotation of the scraping drum (55) and cuts off power transmission during reverse rotation of the scraping drum (55). Since the clutch (7) is provided, when the operator sits on the driver's seat (8) to perform the reaping work, the driver's seat side is set as the already-mown side,
This already-mowed side can be monitored and the work can be performed satisfactorily, the protrusion of the transmission system protruding from the uncut side of the anti-driver's seat can be reduced, and the forced weeding provided on the anti-driver's side Since the rear part of the pulling device (6) is located near the scraping drum (55) and the forced grass weed pulling device (6) is linked to the scraping drum (55) through the interlocking mechanism, The distance between the weed raising device (6) and the take-in drum (55) can be shortened, the power from the engine (2) is taken in from the driver side, and the forced weed raising device (6) ( 6) and the take-in drum (55) are only interlocking with each other, which simplifies the power transmission mechanism.

Then, while simplifying the power transmission mechanism in this manner, the forced weed raising device (6) is set on the drum (5
The disadvantage of linking with 5), that is, when the take-up drum (55) is rotated in the reverse direction due to some circumstances such as when repairing and inspecting the mowing device, the forced weed raising device (6) is also in the reverse direction. The one-way clutch (7) is installed between the power take-out part of the take-in drum (55) and the power take-up part on the tine (61) side in the interlocking mechanism. By providing the reverse rotation of the scraping drum (55) with the tine (61), the reverse rotation of the tine (61) was avoided and the reverse rotation of the scraping drum (55) was possible. Can be solved with certainty.

Therefore, if the scraping drum (55) becomes clogged,
Even if the scraping drum (55) is reversed with the harvesting device stopped, the grain culms can be discharged without damaging the tines (61) and the like.

Moreover, the forced weed raising device (6) is provided on the side wall (51a) of the platform (51) on the side opposite to the driver's seat, and the rear part thereof is provided near the scraping drum (55).
During mowing work, grain culms located on the uncut side wall (51a) of the platform (51) and grain culms that are about to enter between the take-up reel (53) are quickly raised and sown into the platform. By being guided, it is possible to prevent clogging of the grain culms in the transport route, and further, the scraping by the scraping reel (53) can be favorably performed, and the cutting performance can be improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an essential part showing an embodiment of a general-purpose combine according to the present invention, FIG. 2 is a plan view showing the overall structure of the general-purpose combine, FIG. 3 is a perspective view with a part of the platform omitted, and FIG. FIG. 4 is a system diagram showing a power transmission system to the forced weed raising device, and FIG. 5 is an explanatory diagram of the one-way clutch. (1) …… Airframe (5) …… Mowing device (6) …… Forced weed raising device (61) …… Tine (7) …… One-way clutch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naohatsu Ito 1-32, Chayamachi, Kita-ku, Osaka City, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (56) References Open Sho 56-125025 (JP, U) Actual Open Sho 58-52924 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A mowing device comprising a platform (51), a take-up reel (53), a cutting blade (54) and a take-in drum (55) at the front of a machine body (1) equipped with an engine (2). (5)
And a driver's seat (8) provided on one side in the width direction at the front of the machine body (1), the driver's seat (8) is provided outside the take-in reel (53). ) To the platform (5
A forced weed raising device (6) having a plurality of tines (61) on the side wall (51a) of (1), which are directed in the front-rear direction, a rear portion inclines upward with respect to the front portion, and protrude and move upward to move forward and backward. )
Is provided to position the rear part of the raising device (6) near the scraping drum (55), and the harvesting device (5).
On the side of the driver's seat in, a transmission mechanism for transmitting power from the engine (2) to the harvesting device (5) is provided, while on the side opposite to the driver's seat of the scraping drum (55), the scraping drum ( 55) Passive power to the forced weed raising device (6)
An interlocking mechanism for transmitting power to the drive drum is provided between the power take-out portion of the raking drum (55) and the power receiving portion of the forced weed raising device (6) in the interlocking mechanism. A general-purpose combine characterized in that a one-way clutch (7) is provided for transmitting power to the forced weed raising device (6) during rotation and for interrupting power transmission during reverse rotation of the take-in drum (55). .