JPS6019403A - Plowing part of walking type agricultural plowing vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tilling section of a walk-behind agricultural vehicle, in which the rotary shaft is driven by a bevel gear transmission, and the rotary shaft is rotated by 1800 degrees. The position of the rotary shaft, which is configured so that the direction of rotation can be switched between forward rotation and reverse rotation, can be changed between upper and lower positions, and the rotary shaft is located at the upper position. At times, normal tilling work is performed using normal tilling claws, and when the rotary shaft is in the lower position, deep tilling work can be performed using deep tilling claws that have a larger diameter than the normal tilling claws. This invention proposes a highly economical tilling section for a farm vehicle that can effectively use a farm vehicle.
It has a transmission case for transmitting power from the iQI+ to the rotary shaft of the tilling section, and the axis of the drive shaft is suspended from the upper shaft that receives power from the transmission case via a bevel gear transmission. The upper shaft is supported by the bevel gear case and the drive shaft is supported by the drive shaft case so as to match the center line A small bevel gear is wedge-fitted to the lower end of the drive shaft, and a large bevel gear that meshes with the small bevel gear is fixed to the rotary shaft so that the rotary shaft is driven at right angles to the drive shaft. , the rotary shaft is rotary 1l
One end of the extended drive shaft is wedge-fitted to the lower end of the drive shaft that is supported by the Ill+ case and set at the second position, and a small bevel gear is wedge-fitted to the lower end of the extended drive shaft. In addition, the upper end of the extended drive shaft case is removably fixed to the lower end of the drive shaft case with bolts, etc., and the rotary shaft case is removably fixed to the lower end of the extended drive shaft case with bolts etc. A large bevel gear that meshes with the rotary shaft is fixed to the rotary shaft, and the rotary shaft is supported by the rotary shaft case and positioned at a lower position so that the rotary shaft is driven in a position perpendicular to the drive shaft. The drive shaft case is supported at the bottom of the bevel gear case so that it can be rotated around the axis of the drive shaft, and by rotating the drive shaft case 1800 turns, the rotor shaft is rotated 18o0. The rotary shaft is configured so that the rotation direction of the shaft can be switched between normal and reverse rotation, and if the rotary shaft is located at the top, a normal tilling claw can be attached to the rotary shaft to perform normal tilling. If the work is possible and the tilling shaft is located at the lower position, a deep tilling claw with a larger diameter than a normal tilling claw is attached to the tilling shaft to enable deep tilling work. The reason lies in the fact that the position can be changed to a higher or lower position.

In the following, a detailed explanation will be given based on the drawings that can be illustrated. In FIGS. 1 to 5, (15) is the prime mover (+6
), left and right running wheels (1η, (+71', tillage part (
4), a transmission case (1), a steering wheel θ8), etc. It is a walk-behind agricultural vehicle. The power of the prime mover 06) is transmitted to the main lever that controls the power connection/disconnection mechanism (not shown) via the engine pulley 09), the bell I-(a)), the human pulley (21), etc. The power is transmitted to the tilter (input shaft by operation of No. 2).

Fixed gears (-) and (c) are fixedly installed at the input 11Ql+ (23), and the wheel shaft (a) is driven through a transmission device (not shown) that meshes with the fixed gears (-) and (c) through selective sliding. , left and right running wheels (
17) and (+7)' are driven in the direction of arrow (a) or arrow (b), and the agricultural vehicle (15) moves forward or backward.

In addition, the rotary shaft (5) of the tilling section (4) is shown in the input shaft diagram).
Sliding gear I27) for transmitting power to ), (a fixed gear whose flesh is slidably wedge-fitted and fixed to the PTO shaft (2) protruding to the side of the transmission case f11) (
291,00) and are selectively slid and engaged. A large sprocket (31) and a small sprocket (IJI) are supported at the front and rear of the transmission case (3), respectively.The large sprocket (IJI) is attached to the PTO shaft (2), and the small sprocket The upper shaft (6) has a frame bottom, and the large sprocket 1-(31) and the small sprocket l-(3)
2) is wrapped with a cheno (3131), and the upper shaft (6
) is driven.

A bevel gear A04) is fixed to one end of the upper shaft (6),
The bevel gear A (34) meshes with the bevel gear B (e) fixed to the upper end of the drive 11 order 7) and drives the drive 1liIll (7). The drive shaft (7) is suspended downward via a bevel gear transmission device including the bevel gear A (341° bevel gear B05). Then, the upper shaft (6) is placed in the bevel gear case (8), and the drive shaft (7) is placed in the drive shaft case (9) so that the axis of the drive shaft (7) matches the left-right center line XX of the aircraft.
).

The transmission case (3) is fixed to the transmission case (1) and the bevel gear case (8) by a pin (36).

The upper part of the drive shaft case (9) is the bevel gear case (8).
The stop ring (3) fits into the lower part of the drive shaft (7) so that the drive shaft case (9) can rotate around the axis of the drive shaft (7).
9) It is thus supported on the bevel gear case (8). A cylindrical portion (4Ce) is formed in the upper part where the drive shaft case (9) is fitted into the bevel gear case (8) to reinforce the support of the drive shaft case (9).

A rotary lever (14) is fixed to the drive shaft case (9) so as to be movable up and down using a pin (41) as a fulcrum.

In addition, on two sides of the rotary frame 01 through which the small diameter portion (10) of the drive shaft case (9) passes, there is a rotary lever (I41) fixed to the drive shaft case (9).
A locking tool (+2) on the 110th side and a rear locking tool (13) are fixedly installed to lock the locking tools (12) and (13).
) is configured to lock one end of the rotation lever (14) to lock the rotation of the drive shaft case (9). The tool (13) is provided at a position having a phase of 1800 with respect to the axis of the drive shaft (7).The rotary frame (11)
The front end is fixed to the hitch θ→ with a bolt (43), etc., and the rear end is fixed with a mounting bracket (44), and the mounting bracket θ4) is fixed to the column (the center is fixed with a fastener (51)). A tail wheel (45) is attached to the lower end of the strut (46).

A small bevel gear (37) is mounted on the lower end of the drive shaft (7), and the small bevel gear (large bevel gear (2) that meshes with 3η) is fixed to the rotary shaft (5) so that the rotary shaft (5) The rotary shaft (5) is supported by the rotary shaft case (54) so that it is driven at right angles to the drive +Ii+I[), and the rotary shaft case -) is supported by the drive shaft case (9).
) is removably fixed to the lower end of the holder with a bolt φ3).

(4η is the low recovery cover, (4η is the low recovery axis (
5) are the tilling claws attached to the left and right sides.

As described above, the rotary shaft case (goods) is removably fixed directly to the lower end of the drive shaft case (9), and the rotary shaft case (9)
5) is located at the upper level, and its operating state will be explained below. First, in ordinary tillage work, a gear change mechanism (not shown) is operated, and a fixed gear (
Gears of a transmission device (not shown) are engaged with the gears (17) and (17)' to rotate in the direction of the arrow (A) so that the aircraft moves in the direction of the arrow (A). . On the other hand, the sliding gears (27) and (e) are selected as fixed gears ()) and (to) by operating a transmission mechanism (not shown), and the meshing rotary shaft (5) is set to a desired rotational speed.

As shown in Fig. 4, the rotating direction of the rotary shaft (5) is determined by the arrow shown in Fig. 1 when the large bevel gear (to) is located to the right of the left-right center line ) is set to rotate in the direction. That is, when the rotation lever (14) for rotating the drive shaft case (9) is engaged with the front locking tool (+z) as shown in FIGS. 1 and 6.

In this state, the main clutch lever (2 kalpas) is operated, and the power in the prime mover (not shown) is used to perform normal tillage work. In this state, the running wheels (17) (The rotary shaft (5) rotates in the direction (C) in the same direction as the rotation direction (A) of lη'.
) To change the rotation from the normal rotation direction (C) to the reverse rotation direction (C), move the rotation lever 04), which is engaged with the front locking tool (12), by pressing the pin (41). With the fulcrum −
1 Rotate to one side (indicated by the chain line in Figure 5) to release the locking state with the front locking tool (12), and then turn the rotation lever (
14) is rotated 180 degrees and engaged with the rear locking tool (13), the drive shaft case (9) also rotates 180 degrees, and the rotary shaft (5) also rotates 180 degrees. As shown in Figure 5, the large bevel gear (to) will be located on the left and right sides of the aircraft, to the left of the center line It rotates in the opposite direction of rotation, i.e. in the direction of the arrow shown in FIG. Moreover, the direction of the tilling claws (4→, etc.) is also oriented in the opposite direction, as shown by the chain line tilling claw 0' in Figure 1. There is no need to remove it from (5) and swap it left and right.

When used for tilling work in hard fields, this rotation (in the opposite direction) allows stable tillage work without causing the so-called dashing phenomenon in which the machine body jumps forward. It is also extremely useful for burying tillage work.

Next, in the present invention, the rotary shaft case (-) is removably fixed below the drive shaft case (9) via the extended drive shaft case (09) and the extended drive shaft (5), and the rotary shaft (5) ) is located at the lower end of the drive shaft (2) at the lower end of the drive shaft (7).
The upper end of the extended drive shaft (52) is wedge-fitted, and a small bevel gear C37) is wedge-fitted to the lower end of the extended drive shaft (52).

The upper end of the extended drive shaft case (4 [phase]) is removably fixed to the lower end of the drive shaft case (9) with a pin (53), etc., and the lower end of the extended drive shaft case (49) The rotary shaft case is removably fixed with bolts (5111, etc.), and the small bevel gear 0η and the large bevel gear (haze) mesh to drive the rotary shaft (5).

Deep-tilling claws are attached to the left and right sides of the rotary shaft (5) constructed in this manner, and the deep-tilling operation is carried out. The outer diameter of the deep tilling claws is the same as the normal tilling claws mentioned above (
The outer diameter of the drive shaft (5) is set larger than the outer diameter of the drive shaft (4), but the position of the low drive shaft (5) is
Since the outer diameter of the deep plowing claw (to) is moved downward by the length dimension of 9), the outer diameter of the deep plowing claw (to) can be installed without interfering with the rake cover (4η, etc.). Therefore, the desired deep plowing claw (
Extended drive shaft case (4[
phase] and the length of the extended drive shaft (52) are determined. Rotate such a large-diameter deep plowing claw in the normal rotation direction (
C) Deep tillage is suitable for deep tillage in fields with relatively soft soil, such as sandy soil or bacterial beds. If the claws are rotated in the reverse direction), good stirring and burying work can be performed at the same time as deep tilling work. The procedure for switching to this reverse direction is as described above, by engaging the rotary lever (14) with the rear locking tool (I31), the rotary shaft (5) rotates 180 degrees in a plane, and the large bevel gear (2 ) is made possible by being located to the left of the machine's left-right center line becomes.

As is clear from the above detailed description, in the present invention, not only the rotary shaft case but also the extension drive shaft case can be easily removed and replaced. The structure is such that the position of the axis can be changed between upper and lower positions. Therefore, if tilling work with normal tilling claws is required, set the rotary shaft to the upper position, and if deep tilling work with deep tilling claws with a larger diameter than normal tilling claws is required, set the rotary shaft to the upper position. By setting the plow to the lower position, it is possible to perform four different desired depths of plowing with one agricultural vehicle. Rotor IJ 1lqll
By simply changing the case, one agricultural vehicle can perform the work of two agricultural vehicles, making it possible to realize an agricultural 4JI vehicle with extremely high economic efficiency and efficiency.

[Brief explanation of drawings]

The attached drawings are drawings illustrating embodiments of the present invention, and FIG. 1 is a side view of a walk-behind agricultural vehicle equipped with a tiller according to the present invention, and FIG. 2 is a diagram illustrating the main parts of FIG. 1. 6 is a side sectional view of the main part of Fig. 1, Fig. 4 is a sectional view of the main part taken along the Y-Y line of Fig. 5, °Fig.
Figure 6 is a cross-sectional view of the main part of a walk-behind agricultural vehicle equipped with another type of tillage unit according to the present invention; is a cross-sectional view of the main parts along the Y-Y line in Fig. 6. In these drawings, (1) is the transmission case, (2) is the PTO shaft, (3) is the transmission case, and (4) is the tilling section. ,(
5) is the rotary shaft, (6) is the upper shaft, (7) is the drive shaft, (8) is the bevel gear case, (9) is the drive shaft case, (3 is the old small bevel gear, (to) is the large bevel gear Gear, (48
1 is the tilling claw, (49) is the extended drive shaft case, - is the deep tilling claw, G4 is the extended drive shaft, G3) is the bolt, (Foundation) is the rotary shaft case, and X-X is the left and right center line of the machine. Patent applicant representative Patent attorney Mitsuru Ike

Claims (1)

[Claims] The PTO shaft (2) protrudes to the side of the transmission case (1).
) to the rotary shaft (5) of the tilling section (4).
The drive shaft (7), which receives power from the upper shaft (6) from 3), is suspended via a bevel gear transmission.
is supported by the bevel gear case (8), the drive shaft (7) is supported by the drive shaft case (9), and the rotary shaft case (-) is supported by the bolt at the lower end of the drive shaft case (9).
It is removably attached to the drive lll1lI (7
) is fitted with a small bevel gear (37) at the bottom of the frame, and the large bevel gear (to) that meshes with the small bevel gear (2) is attached to the rotary shaft (5
) so that the rotary shaft (5) is driven at right angles to the drive shaft (7).
) is supported by the rotary shaft case and set at an upper position, or the upper end of the extension drive shaft ring is placed at the bottom of the lower end of the drive shaft (7), and the extension drive shaft (5
2) The small bevel gear 07) is placed at the bottom of the frame, and the extension drive shaft case (49) is placed at the bottom end of the drive shaft case (9).
) is removably attached to the lower end of the extended drive shaft case 0 [phase] with a bolt 63),
The large bevel gear (to) that meshes with the small bevel gear 07) is fixed to the rotary shaft (5), and the rotary shaft (5) is connected to the drive shaft (
7), the rotary shaft (5) is supported by a rotary shaft case and positioned at a lower position, and the drive shaft case (9) is mounted on the drive shaft. (7) The lower part of the bevel gear case (8) is supported so that it can be rotated around the axis of the drive shaft (5). The rotary shaft (5) is configured so that it can be rotated 180° in a plane and the direction of rotation of the rotary shaft (5) can be switched between forward rotation (/current and reverse rotation).
5) is located at the top, the rotary axis (5)
) can be used for normal tilling work by attaching a normal tilling claw (to) to the rotary shaft (5), and if the rotary shaft (5) is located at the lower position, the normal tilling claw 08 can be attached to the rotary shaft (5). )
It is characterized by making it possible to change the position of the rotary shaft (5) to the upper or lower position so that deep tilling work can be performed by attaching a deep tilling claw (total) with a larger diameter than that of the machine. The tilling section of a walk-behind agricultural vehicle.