JP2972312B2 - Power transmission mechanism in reaper - Google Patents

Description

The present invention relates to a power transmission mechanism in a cutting and binding machine that binds while cutting a culm planted in a field.

(B) Conventional technology Conventionally, in a binding and binding machine that binds a cut culm by a constant amount by a binding device and discharges it to the lateral side of the body, for example, a binding is disclosed in Japanese Utility Model Publication No. 61-45778. There is an apparatus in which an input shaft for driving the apparatus is provided to be offset to one side of the binding apparatus.

(C) Problems to be Solved by the Invention However, in the binding device of the above-mentioned cutting and binding device, the input shaft for driving the binding device is provided to one side of the binding device, so that the power of the binding device is reduced. The transmission structure is complicated and the weight balance of the aircraft becomes unbalanced,
Therefore, there was a problem that the running of the aircraft was unstable.

(D) Means for Solving the Problems According to the present invention, a binding device is disposed at the rear of the reaper, and a binding passage of the binding device is disposed in the longitudinal direction of the machine.
In a cutting and binding machine provided with grain stalk releasing means on both the left and right sides of the binding passage, the binding device driving input shaft for driving the binding device is substantially perpendicular to the binding transmission case constituting the binding device. And the input shaft for driving the binding device is located substantially at the center position in the lateral direction of the fuselage, and at the rear of the binding passage, substantially in the middle of the left discharge passage and the right discharge passage connected in the lateral direction of the fuselage. At the rear of the part, and
The input shaft for driving the binding device is covered by an input shaft pipe, and a switching body for switching the direction of releasing the grain stalk bundle to either the left direction or the right direction is attached in the middle of the input shaft pipe. The switch body enables release of the cereal stalk bundle through only one of the left and right release passages, and a head guide that operates in conjunction with the switch body is disposed above the input shaft pipe. A power transmission mechanism in a cutting and tying machine characterized in that a grain culm tip is guided in a release direction by a guide.

(E) Action When the cutting and binding machine is advanced to perform the cutting of the grain stalk, the engine is rotated to guide its power to the transmission case, and furthermore, the input to protrude from the binding transmission case via the cutting unit transmission case. To the shaft.

Then, the left and right PTO shafts and the packer shafts are driven to rotate constantly through sprockets and endless chains located at the lower end of the input shaft.

Also, on the PTO shaft side, the grain stem scraping device and the grain stem raising case are driven.

The packer shaft drives the culm collecting rod and the cutting device.

When a certain amount of grain stalks are collected on the grain stalk receiving door side, the one-turn clutch mechanism for binding is turned on, and the needle drive shaft rotates only one turn.

Therefore, the sprockets for driving the needle, the sprocket for driving the door shaft, and the sprocket for the knot driving shaft are linked by the knot transmission chain to bind the grain.

In addition, at the same time as the binding operation, either the left culm releasing arm or the right culm releasing arm operates to discharge the bound cereal bundle to the side of the machine body.

(F) Effects According to the present invention, the following effects can be obtained.

That is, in the present invention, the input shaft for driving the binding device is disposed at the rear of the binding passage at a rear position substantially in the middle of the left discharge passage and the right discharge passage connected in the lateral direction of the fuselage. Since the power transmission from the unit is performed only inside the binding transmission case, the input shaft does not interfere with the transportation and release of the grain stalk, and the binding and release of the grain stalk can be performed smoothly. it can.

At this time, the switching body is mounted in the middle of the input shaft pipe that covers the binding device driving input shaft, and a tip guide that operates in conjunction with the switching body is disposed above the input shaft pipe. The switching body and the tip guide cooperate to switch between the left release passage and the right release passage, so as to guide the cereal stalk bundle along one of the release passages, From this point, it is also possible to smoothly bind and release the grain stem.

(G) Embodiment An embodiment of the present invention will be described in detail with reference to the drawings.
Denotes a mowing tying machine. The mowing tying machine (A) has a mowing frame (1) protruding at a front portion and a motor (2) mounted at a rear portion.

(3) is a stalk raising case provided on the right front of the cutting frame (1) in an inclined manner, (4) is a tine for raising, (5)
Is a cereal stem plant fixed to the left side of the cutting frame (1) in an inclined manner. (6) is a clipper-type reaper, (7)
Is a binding device provided at the rear of the mowing device (6), and the binding device (7) has a binding passage (8) arranged in the longitudinal direction of the machine.

On the left side of one side of the binding passage (8), a cereal stem collecting rod (9) for converging the cereal stem while performing a crank motion.
And a grain stalk receiving door (10) for receiving the grain stalk, a tying needle (11) for intermittently rotating to supply a tying string, and a left grain stalk release for releasing the grain stalk to the left. Arm (12)
Is provided.

A knot building (13) and a string holder (14) are located on the other right side of the binding path (8), and a knot cover (15) covering the knot building (13) and the string holder (14). ), And a right culm release arm (16) for releasing the cereal stem to the right side is provided, and the left culm release arm (12) and the right culm release arm (16) are provided.
This constitutes the stalk release means (12a) (16a).

The rear part of the binding passage (8) is connected to a left discharge passage (17) and a right discharge passage (18) provided in the lateral direction of the fuselage.

A rear end (19) of a substantially intermediate portion between the left discharge passage (17) and the right discharge passage (18) has a tip (20) at the position of the grain stalk receiving door (10) and a knot cover (15). A switching body (21) is provided which can be selectively switched between the position and the position.
Alternatively, it can be switched to the right side.

(22) is a left discharge passage (17) and a right discharge passage (1
8) an input shaft for driving the tying device vertically provided at a rear position (19) of a substantially intermediate portion of the switching member (21) on an input shaft pipe (23) covering the input shaft (22); The base of (21
-1) is fitted. The input shaft (22) is located at a substantially central position (7-1) in the left-right direction of the body, and
It is provided close to the outer position of the rotation locus of the left and right discharge arms (12, 16).

(24) is a spike guide arranged above the input shaft pipe (23), as shown in FIG. 3, which operates in conjunction with the switching body (21) to direct the grain stem spike in the discharge direction. To guide you.

4 and 5, reference numeral (25) denotes a switching mechanism for switching the switching body (21) and the tip guide (24) right and left in an interlocking manner. Guide (2
4) The projection pin (24-1) on the side is fitted.

Further, a projection pin (21-2) on the switching body (21) side is fitted to the lower fitting portion (25-2). (26) is a supporting portion for supporting the vertical position of the switching mechanism (25), and (26-1) is a supporting pin, which supports the switching mechanism (25).

In FIGS. 3 and 4, reference numeral (27) denotes a binding transmission case of the binding device (7), and a boss (28) is formed high in the center of the rear portion to form an input shaft for driving the binding device. (twenty two)
The lower end is attached.

(29) is a passage wall integrally connected to the left and right positions of the boss (28), and forms a left discharge passage (17) and a right discharge passage (18).

In FIG. 2, reference numeral (30) denotes a hand lever for switching the switching mechanism (25) leftward or rightward, and is provided on the handle (31). (32) is a mounting box for a hand lever, (33) is a transmission case connected to the engine (2), and (34) is a traveling wheel.

4 to 7, (30-1) is a tension wire, (30-2) is a tension spring, (30-3) is a return spring, and (30-4) is a switch (21). The pivot lever provided on the base (21-1), (30-5) is the left culm release arm (1
2) The pulling wires (30-6) and (30-7) are connected to both sides by an operating lever that switches the operation of the right culm release arm (16).

Further, (35) is a grain culm guide plate for leaning the ear tip when releasing the grain stalk bundle leftward or rightward. (3
6) is a mowing section speed change case, which is interlocked with the transmission case (33) via the drive shaft (37). Also, the mowing section speed change case (36) is connected to the input shaft (22).

8 is a rear sectional view of the binding device (7), and FIG. 9 is a power transmission mechanism of the binding device. In the drawing, (40) is a sprocket provided at a lower end of the input shaft (22), and is endless. The sprocket (43) of the PTO shaft (42) and the sprocket (45) loosely fitted to the needle shaft (44) can be driven via the chain (41). (46) is a clutch gear, (47) is a transmission gear, (48) is a packer shaft, (49) is a cutting blade transmission case, (50) is a cutting blade driving crankshaft, and (51) is a crank cutting device ( It is linked with 6). (52) is a one-rotation clutch mechanism, (52-1) is a knot transmission chain, (52-2) is a sprocket for driving a needle, (52-3) is a sprocket for driving a door shaft, and (52-4) is a door shaft. The transmission gear mechanism, (52-5) is a sprocket for the joint drive shaft.

The sprocket (52-2) for driving the needle, the sprocket (52-3) for driving the door shaft, and the sprocket (52) for the knot driving shaft are operated by the knot transmission chain (52-1).
-5) can be linked freely.

(53) is an intermediate shaft, (54) is a drive mechanism for driving the left culm release arm (12), (55) is an input mechanism, (56)
Is a door shaft, and (57) is a knot driving shaft, which is connected to a driving bevel gear (58) and a right culm releasing arm (16) at the upper part. (59) is an input mechanism.

The embodiment of the present invention is configured as described above, when the cutting and binding machine is advanced to perform the cutting work of the grain stalk,
The power of the engine (2) is guided to the transmission case (33), and the input shaft (22) is further rotated via the reaper speed change case (36).

Then, the PTO shaft (42) and the packer shaft (48) are constantly driven to rotate through the sprocket (40) and the endless chain (41) located at the lower end of the input shaft (22).

On the side of the PTO shaft (42), the grain stalk scraping device and the grain stalk raising case (3) are driven.

The packer shaft (48) drives the cereal stem collecting rod (9) and the cutting device (6).

When a certain amount of cereal stems are collected on the cereal stem receiving door (10) side, the one-turn binding clutch mechanism (52) is turned on, and the needle drive shaft (44) rotates only one turn.

Therefore, the needle driving sprocket (52-
2) and the door shaft drive sprocket (52-3) and the knot drive shaft sprocket (52-5) are linked by a knot transmission chain (52-1) to bind the grain culm.

At the same time as the uniting work, the left culm release arm (12),
Alternatively, one of the right culm release arms (16) is operated to discharge the bound culm bundle to the side of the body.

As described above, according to the above-described embodiment, in the mowing tying machine in which the tying device (7) is disposed at the rear of the mowing device (6),
An input shaft (22) for driving the binding device (7) is protruded from a binding transmission case (27) constituting the binding device (7), and the input shaft (22) is substantially centered in the lateral direction of the machine body. Since it is provided at the position (7-1), the power can be transmitted substantially uniformly to the left and right by the input shaft, and the balance of the binding device and the machine body can be optimized.

The input shaft (22) is disposed at the rear of the binding passage (8) at a rear position substantially in the middle of the left discharge passage (17) and the right discharge passage (18) connected in the lateral direction of the vehicle. Input shaft (2
Since the power transmission from 2) is performed only inside the binding transmission case (27), the same input shaft (22) does not hinder the transfer and release of the grain culm, and smoothly binds and releases the grain culm. be able to.

Then, the cutting and binding work can be efficiently performed while the structure is simple as a whole.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view of a mowing and binding machine equipped with the present invention, FIG. Fig. 4 is a plan view of a binding device as a main part of the present invention, Fig. 4 is a sectional side view of the same, Fig. 5 is a rear view of a switching mechanism, and Fig. 6 is a schematic plan sectional view showing an attached state of a switching body. FIG. 7 is a schematic plan sectional view showing an attached state of the tip guide, and FIG.
The figure is a rear sectional view of the binding device, and FIG. 9 is a power transmission mechanism diagram of the binding device. (6): Cutting device (7): Binding device (7-1): Center position (22): Input shaft (27): Binding transmission case

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 37/00-37/06 A01D 59/00-59/14

Claims (1)

(57) [Claims] 1. A binding device (7) is provided at a rear portion of the reaper (6), and a binding passage (8) of the binding device (7) is provided in the longitudinal direction of the machine body. ), A binding device driving input shaft (22) for driving a binding device (7) is provided in the cutting and binding device provided with grain stalk releasing means (12a) and (16a) on both left and right sides of the binding device. The binding transmission case (27) that constitutes (7) projects substantially vertically from the binding transmission case (27), and the binding device driving input shaft (22) is substantially at the center position (7-
1) and at the rear of the binding passage (8), a left discharge passage (17) and a right discharge passage (1
8) It is arranged at the rear part (19) of the almost middle part, and the input shaft (22) for driving the binding device is covered by the input shaft pipe (23). A switching body (21) for switching the release direction of the grain stalk bundle to either the left or right direction is attached to the stalk, and the switching body (21) is used to provide one of the left and right discharge passages (17) and (18). The stalk bundles can be released only through the input shaft pipe (23) and the switching body (21)
A power transmission mechanism in a cutting and binding machine, characterized in that a head guide (24) that operates in conjunction with the head is arranged, and the head of the cereal culm is guided in the release direction by the head guide (24). .