JP2922173B2 - Side drive rotary tillage equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a side drive rotary tillage device.

[0002]

2. Description of the Related Art A side-drive type rotary tillage device supports a left and right end of a rotary claw shaft which is horizontally supported at a lower portion of a tilling unit machine frame by a side drive case and a side frame of the machine frame. Then, it is configured to be rotationally driven by a claw shaft drive mechanism housed in the side drive case, but the rotary claw shaft is formed by dividing it into a plurality of claw cylinder portions in the axial direction, These claw cylinder portions are configured to be rotationally driven in opposite directions by a forward rotation transmission system and a reverse rotation transmission system provided in the claw shaft drive mechanism (hereinafter, referred to as a coaxial forward / reverse type rotary claw shaft). This is advantageous in various aspects, such as suppressing the dashing phenomenon of the airframe due to the tilling reaction force and reducing the power required for tilling.

[0003]

However, in the case of a rotary claw shaft of the above-described coaxial forward / reverse type, if a claw shaft drive mechanism housed in a side drive case is provided with a forward rotation transmission system and a reverse rotation transmission system. The width of the side drive case is widened, and the wide drive case is located outside the cultivation width of the rotary claw shaft.Therefore, in the case of ridge cultivation, the wide drive case prevents tillage up to the point close to the ridge. There is a problem such as damaging the ridge by moving by sliding on the ridge forcefully, and deteriorating the straightness of the body by sliding with the ridge. Since a simple drive case shifts the cultivated part, the cultivated soil in the part is pushed into the soil to leave a trace of the case transition.

The present invention relates to a side drive type rotary tilling device having a coaxial forward / reverse type rotary claw shaft which is advantageous for suppressing a dashing phenomenon of an airframe. It is possible to till the area close to the ridge accurately without dripping or impairing the straightness of the aircraft, and to leave a transition mark by pushing the already cultivated soil in the case of ordinary adjacent plowing etc. It is an object of the present invention to provide a side drive rotary tillage device in which trouble is reduced.

[0005]

That is, in a side drive rotary tillage device according to the present invention, a rotary pawl shaft which is supported horizontally between a side drive case and a side frame of a tilling unit frame is provided with a rotary pawl shaft. A claw shaft barrel that is rotationally driven by a forward rotation transmission mechanism in a claw shaft drive mechanism that transmits power to the claw shaft drive mechanism, and a reverse rotation transmission mechanism in the claw shaft drive mechanism that is provided side by side on the axial center side of the claw shaft cylinder. In a side-drive rotary tilling device that is divided into a rotatably driven claw cylinder and rotates the claw shaft cylinder and the claw cylinder in mutually opposite directions, a reverse rotation transmission mechanism that transmits power to the claw cylinder,
Provided to be housed in the room of the inner bulge of the drive case located on the lateral outer side of the claw cylinder, so that the tilling claw attached to the claw cylinder rotates while including the inner bulge of the drive case. It is characterized by having done.

Further, in the side drive rotary tillage device having the above-described configuration, a forward / reverse switching mechanism is provided on the transmission upper side than the reverse rotation transmission mechanism in the claw shaft drive mechanism, and the forward / reverse switching mechanism is switched. The rotation direction of the nail tube can be changed.

[0007]

Embodiments will be described with reference to the drawings.
In FIG. 2, the cultivator (T) has an engine (1) mounted on a frame extending from a transmission case, and an axle (axle) that supports the power of the engine (1) to a lower portion through a transmission mechanism in the transmission case. 2) to drive the vehicle by driving wheels (3) mounted on the axle (2), and the driving operation can be performed by a handle of a steering handle (4) extending rearward from the transmission case. Is configured. A rotary tillage device (R) of a side drive type is detachably provided at the rear of the transmission case.

The rotary tillage device (R) is connected to a base frame (5) in the lateral direction of the body, a side drive case (6) connected to one end of the base frame, and to the other end of the base frame (5). A horizontal rotation type rotary claw shaft is supported by a lower portion of a tillage unit machine frame formed by the side frame (7), that is, between the side drive case (6) and the lower end of the side frame (7). It is configured.

The aforementioned rotary claw shaft has a claw cylinder (23a) located on the inner side of the side drive case (6) and a claw cylinder (23b) located on the inner side of the side frame (7).
And a claw shaft tube (8) located between these claw tubes (23a) and (23b), and the detailed configuration thereof will be described later. Also, (9) in the figure is a beam extending from the tillage unit machine frame, (10) is an upper surface portion provided in a wing-like manner on both sides from the beam (9), and a side surface portion extending from both ends thereof. The cultivation cover (11) is a gauge wheel device for setting the cultivation depth provided at the rear end of the beam (9).

[0010] The base frame (5) of the tiller section machine frame has a passive section (13) at the center thereof, and the passive section (13) is connected to the mission case, and is provided from an output section of the mission case. The power is received by the input shaft (14) and transmitted to a rotating shaft (15) that is supported in the base frame (5). The end of the rotating shaft (15) protrudes into a side drive case (6) connected to one end of the base frame (5) as shown in FIG. The input is to a claw shaft driving mechanism housed inside the case (6).

The claw shaft drive mechanism is configured to hang a chain (19) around a sprocket (17) fitted to the rotary shaft (15) and a sprocket (18) fitted to the tilling drive shaft (15a), A forward rotation transmission mechanism (A) that is configured to be chain-stretched with an arbitrary tighter (20) and that transmits power to a left drive shaft (15a) supported laterally below the side drive case (6); A reverse rotation transmission mechanism (A1) (A2) that is interlocked with the rotation transmission mechanism (A).

The left drive shaft (15a) is horizontally supported by a center hole of a shaft support (21a) provided in the side drive case (6), and its inwardly projecting end has a claw shaft barrel (8). )
And the other end of the claw shaft cylinder (8) is in the center hole of a shaft support (21b) provided in a drive case (22) mounted on the lower end of the side frame (7). It is connected to the inner end of a right drive shaft (15b) that is horizontally supported by bearings. That is, the pawl barrel (8) is driven by the left drive shaft (15a) interlocked with the forward rotation transmission mechanism (A), and the right drive shaft (15b) on the drive case (22) side via the pawl barrel (8). ).

The shaft support (21) on the side drive case (6) side
a), the shaft support (21) on the drive case (22) side.
The outer diameter part of b) is formed in a bearing part which inclines downward at a fixed angle with respect to the axis of the left drive shaft (15a) and the right drive shaft (15b). The claw cylinders (23a) and (23b) are rotatably supported by bearings. Then, the claw cylinder (23a) located on the inner side of the side drive case (6) is rotationally driven by the reverse rotation transmission mechanism (A1) formed in the side drive case (6), and the rotation of the side frame (7). The claw cylinder (23b) located on the inner side is provided with a reverse rotation transmission mechanism (A) formed in the drive case (22).
It is configured to be driven to rotate in 2).

More specifically, the reverse drive transmission mechanism (A1) on the side drive case (6) side includes a drive gear (24a) interlocked with the forward drive transmission mechanism (A) and a passive gear (25a) meshed therewith. Passive gear (25a)
The rotational power transmitted in the reverse direction is transmitted to the passive gear (25
The gear (26a) provided integrally with the a) and the receiving gear (27a) formed on the inner diameter of the claw cylinder (23a).
Is transmitted to the claw cylinder (23a) by the meshing of the claw cylinder (23a).
a) is configured to be rotationally driven in the direction opposite to the claw shaft cylinder (8).

The reverse rotation transmission mechanism (A2) in the drive case (22) on the side frame (7) side is connected to the right drive shaft (15b) via the left drive shaft (15a) and the claw shaft tube (8).
Is transmitted to an idle shaft by a chain mechanism, and a reverse gear train including a driving gear (24b) and a passive gear (25b) and a passive gear (25) are transmitted from the idle shaft.
b) and a gear (26b) provided integrally with the claw cylinder (23).
The power is transmitted to the claw cylinder (23b) by the engagement of the receiving gear (27b) formed on the inner diameter part of (b).

The claw shaft tube (8) and the claw shaft tube (8)
On the outer circumference of the nail cylinders (23a) and (23b) located on both left and right sides of the sword, a required number of forward / reverse tillage nails (12),
(28a) and (28b) are attached, and the input shaft (14) and the rotating shaft (15) are provided in the passive portion (13) of the base frame (5) of the tillage unit machine frame described above.
, A bevel gear (29) (30) (31), and a forward / reverse rotation switching mechanism (B) composed of a slidable pawl clutch body (32).

Thus, the above-described reverse rotation transmission mechanism (A1) on the side drive case (6) side has a bulging portion formed inside the lower portion of the side drive case (6) as shown in FIG. The drive case (22) on the side frame (7) side is provided so as to be accommodated in the room.
The reverse rotation transmission mechanism (A2) also has a drive case (22).
It is provided so that it may be accommodated in the room of the bulging part formed inside the lower part of the.

A forward / reverse tillage claw (28a) provided on the claw cylinder (23a) on the side of the side drive case (6),
The forward / reverse tillage claw (28a), which rotates while enclosing the bulging portion of the side drive case (6) and is attached to the claw cylinder (23b) on the side frame (7) side, is driven by the drive case (22). ) Is rotated so as to include the bulging portion.

Therefore, in the side drive rotary tillage device constructed as shown in the illustrated embodiment, the power from the input shaft (14) passes through the forward / reverse switching mechanism (B) and the side drive case (6). The transmission is transmitted to the left drive (15a) by the forward rotation transmission mechanism (A) in the inside, and the left drive shaft (15a) is transmitted.
Of the left claw cylinder (23) through the reverse transmission mechanism (A1).
a) and transmitted to the claw shaft (8), and the power via the claw shaft (8) is transmitted to the plowing claw cylinder (23b) via the right drive shaft (15b) and the reversing mechanism (A2). .

Claw shaft (8) and claw cylinders (23a) (23b)
When the forward / reverse switching mechanism (B) is switched to forward rotation, the claw shaft (8) rotates forward and the soil is downcut and tilled by the forward / reverse tilling claw (12) on the outer periphery thereof. Claw cylinders (23a) and (23b) are reversed, and forward and reverse tillage claws (28a) and (28b) mounted on the outer periphery thereof.
The soil is plowed up by cutting.

When the forward / reverse switching mechanism (B) is switched to the reverse rotation, the rotary claw shaft (8) is reversed, and the soil is up-cut by the forward / reverse tillage claw (12) mounted on the outer periphery thereof. While being cultivated, the nail tube (2
3a) and (23b) are rotated forward and the soil is downcut and cultivated by the forward and reverse rotation tillage claws (28a) and (28b) on the outer periphery. In the embodiment, the claw cylinder (23a) (23
b) is pivotally supported by the inclined pivots (26a) (26b), so that the forward / reverse tillage claw (28a) attached to it
(28b) reaches the lower part of the side drive case (6) and the side frame (7), and plows the soil of the same part without remaining tillage. In the embodiment, the claw cylinder (23a) (2
Although the reverse drive mechanism for transmitting power in 3b) is configured by a combination of a chain and a gear, a reverse power transmission device such as a planetary gear may be used.

[0022]

Since the present invention is configured as described above, it has the following effects.

The rotary pawl shaft, which is supported between the side drive case and the side frame of the tilling machine frame, is rotationally driven by a forward rotation transmission mechanism in a pawl shaft drive mechanism for transmitting power to the rotary pawl shaft. A claw shaft tube and a claw tube which is arranged side by side on the axial center side of the claw shaft tube and is driven to rotate by a reverse rotation transmission mechanism in the claw shaft drive mechanism; And a side drive rotary tilling device that rotates in the opposite directions to each other, a reverse rotation transmission mechanism that transmits power to the claw cylinder is provided inside a chamber of an inner bulge portion of a drive case located at a laterally outer portion of the claw cylinder. Since the tilling claw mounted on the claw cylinder is provided so as to be accommodated and rotated so as to enclose the bulging portion of the drive case, the claw shaft drive mechanism for driving the rotary claw shaft includes a forward rotation transmission mechanism and Coaxial forward / reverse type with reverse transmission mechanism Despite being a side drive rotary tillage device, the part that becomes wider by having a forward rotation transmission mechanism and a reverse rotation transmission mechanism exists in the cultivation area of the rotary claw shaft, and the soil below the part is the bulging part of the drive case. It is plowed without remaining tillage by the rotating tilling claws in the state of being included. Therefore, according to the device of the present invention, in spite of having the coaxial forward / reverse type rotary claw shaft which is advantageous for suppressing the dashing phenomenon of the fuselage, the ridge can be damaged in the case of ridge cultivation or the fuselage. It is possible to cultivate the area close to the ridge accurately without impairing the straightness of the ridge, and also to leave a transition mark by pressing the cultivated soil in the case of ordinary adjacent tilling etc. And good tilling work is performed.

Further, a forward / reverse switching mechanism is provided on the power transmission side of the reverse rotation transmission mechanism in the claw shaft driving mechanism, and the rotation direction of the claw cylinder can be changed by switching the forward / reverse switching mechanism. When the working environment conditions such as the hardness are different, the rotation direction of the claw cylinder driven by the reversing mechanism is changed, and under the condition where the anti-dushing phenomenon adapted to the different working environment conditions is exhibited. Tilling work can be done.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional front view of the apparatus of the present invention.

FIG. 2 is a sectional view of a transmission;

FIG. 3 is a side view of the transmission;

FIG. 4 is a side view of a tiller implementing the present invention.

[Explanation of symbols]

 6 Side drive case 7 Side frame 8 Claw shaft cylinder 23a Claw cylinder 23b Claw cylinder 28a Forward / reverse tilling claw 28b Forward / reverse cultivating claw A Forward transmission mechanism A1 Reverse transmission mechanism B Forward / reverse switching mechanism

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01B 33/08

Claims (2)

(57) [Claims] A rotary claw shaft, which is supported between a side drive case (6) and a side frame (7) of a tilling machine frame, has a positive shaft drive mechanism for transmitting power to the rotary claw shaft. A claw shaft barrel (8) that is rotationally driven by the rotation transmission mechanism (A); and a reverse rotation transmission mechanism (A1) that is provided side by side with the claw shaft barrel (8) in the axial direction and is parallel to the claw shaft drive mechanism. It is divided into a claw cylinder (23a) (23b) that is driven to rotate by (A2), and a claw shaft cylinder (8) and a claw cylinder (23a) (23b).
In the side drive rotary tilling device in which the claw cylinder (23) is rotated in opposite directions to each other,
a) Reverse rotation transmission mechanism (A1) for transmitting power to (23b)
(A2) is provided so as to be accommodated in the room of the inner bulging portion of the drive cases (6) and (22) located on the lateral outer side of the claw tubes (23a) and (23b). ), Wherein the tilling claws (28a) and (28b) attached to the drive case (6) and (22) rotate so as to enclose the inner bulges of the drive cases (6) and (22). 2. A forward / reverse switching mechanism (B) is provided on the transmission upstream side of the reverse rotation transmission mechanism (A1) in the pawl shaft driving mechanism, and the forward / reverse switching mechanism (B) is switched to switch the claw cylinder (2).
3. The side drive rotary tillage device according to claim 1, wherein the rotation direction of 3a) and (23b) can be changed.