JP4479057B2 - Rotary tillage device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary tilling equipment.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, rotary tillers that perform tillage work by rotating tillage claws radially planted on a tiller shaft of a tillage unit are known.
However, with conventional rotary tillers, weeds, etc. are wound around the nail holder to which the nail shaft and tilling nail are attached during the plowing work, and if the work is continued as it is, the resistance due to the winding gradually increases and the plowing performance decreases This causes a malfunction. Conventionally, in such a case, the work is temporarily suspended and the entangled weeds are removed by cutting with a sickle or the like, but this removal work is not easy and is a troublesome work that takes much time and labor. Improvement was desired.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described conventional problems. The purpose of the present invention is to provide a rotary tiller capable of continuing good tillage work by preventing weeds and the like from being wound around the nail shaft during the tillage work. An object of the present invention is to provide an anti-cigarette prevention device for a device.
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention according to claim 1, the tilling claws (3) are attached radially to the pawl shaft (2) of the tilling portion via the pawl holder (8), and the tilling claws (3) are attached. In the rotary tiller that rotates and rotates, the holder (10) is disposed at both ends of the claw shaft (2) separately from the claw holder (8), and is in the longitudinal direction of the claw shaft (2). The claw holders (8, 8) are arranged on both sides of the holder (10). The holder (10) has a base part (10a) configured in two or four parts, and the position of the outer end of the arm is a claw holder. It comprises a plurality of arms (10b) that are outside the outer diameter of (8), and mounting portions (10c) that are respectively formed on the plurality of arms (10b), and a plurality of anti-winding rods (6). It is configured to be detachably attached to the attachment part (10c) and prevent the winding. (6) at a location spaced from Tsumejiku (2), and painted the root space and the Tsumejiku (2) and parallel to mounting structure of the tilling claws (3), further, the two-divided or four The base (10a) divided into divisions is fastened with bolts (11) and nuts (12) to be fixed to the claw shaft (2).
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is a side view showing a schematic configuration in the vicinity of a tillage portion of a rotary tiller according to the present invention, FIG. 2 is a front view showing a configuration in the vicinity of a claw shaft, and FIG. 3 is a perspective view showing an attachment structure of a winding prevention rod. FIG. 4 is a perspective view of the holder.
[0006]
In the rotary tiller according to the present invention, power is transmitted through a drive mechanism from an engine mounted on an engine frame (not shown), and the pawl shaft 2 is rotationally driven through a chain mechanism including a sprocket 4 in the transmission case 1. The tilling work is performed by rotating the tilling claws 3 that are radially attached to the pawl shaft 4.
[0007]
Next, the configuration near the claw shaft 2 will be described in detail.
One end of the claw shaft 2 formed in a long cylindrical shape is fixed to the sprocket shaft 4 in the transmission case 1 via an under shaft flange 5, and the other end is not shown in the figure but is similarly connected via an under shaft flange. And is rotatably supported by the casing at the other end. A plurality of claw holders 8 are fixed at predetermined positions on the peripheral surface of the claw shaft 2, and a plurality of radial claw holders 8 are radially arranged around the claw shaft 2 by inserting the tilling claw 3 into the claw holder 8 and fixing with the bolts 9. Is attached.
[0008]
Six winding prevention rods 6 are arranged at positions spaced apart from the claw shaft 2 in parallel with the claw shaft 2 and at equal intervals around the axis. The six winding prevention rods 6 are round rod-like rigid bodies. As described below, both ends thereof are attached to the attachment portion 10c at the tip of the arm 10b of the holder 10. The arm 10 b of the holder 10 has a larger diameter than the outer diameter of the claw holder 8. Therefore, as is clear from FIG. 2, the anti-winding rods 6 are arranged in the axial direction through the space at the base of each tillage claw 3.
[0009]
Here, the attachment structure of the anti-winding rod 6 will be described in more detail. In the holder 10, a base 10a, an arm 10b, and an attachment 10c are integrally formed, and if six anti-winding rods 6 are attached, one holder 10 has three arms 10b on a semicircular base 10a. And the attachment part 10c is combined, the two holders 10 are combined, the edge part of the nail | claw axis | shaft 2 is clamped, and the base part 10a is fastened with the volt | bolt 11 and the nut 12, and is fixed. When attaching the anti-winding rods 6, the anti-winding rods 6 are inserted into the mounting holes 10 d of the attachment portions 10 c of the holder 10 from the axial direction, positioned, and tightened and fixed with the nuts 13. Note that both ends of the anti-winding rod 6 are tapped so that they can be fixed with nuts 13.
[0010]
As described above, the anti-winding rod 6 is arranged around the claw shaft 2, and when the claw shaft 2 rotates, the anti-winding rod 6 also rotates together. Even if the anti-winding rod 8 is entangled with the anti-winding rod 8, the anti-winding rod 6 rotates on a larger circumference than the claw shaft 2, so let's wind it around the anti-winding rod 6 once. Even if the grass is easily removed, even if it does not come off completely, the grass is entangled only to such an extent that it can be easily removed later, so that no reduction in tillage performance occurs.
[0011]
Moreover, if the attachment structure of the anti-winding rod 6 as in the present embodiment is used, it can be attached to any kind of claw shaft, and it can be easily attached and detached, at a position where the anti-winding rod 6 is passed. Adjustment is also easy.
[0012]
In the above-described embodiment, the number of the anti-winding rods 6 is six, but the present invention is not limited to this. For example, when the number of anti-winding rods 6 is four, a combination of a base 10a of one holder 10 having two arms 10b and a mounting portion 10c is used. Further, in addition to the case where two holders 10 divided into two are used in combination as in the present embodiment, four holders divided into four can be used in combination. However, since the resistance at the time of excavation will become large when the number of the anti-winding rods 6 becomes too large, it is particularly preferable to have up to about 6.
[0013]
5 and 6 show another embodiment of the present invention. FIG. 5 is a perspective view showing the attachment structure of the anti-winding rod, and FIG. 6 is a perspective view of the holder.
In the present embodiment, at the end of the claw shaft 2, two holes 14a and 14b passing therethrough and two holes 14c and 14d extending in a direction perpendicular thereto are formed, and through the connecting bolts 15 through the holes 14a and 14b, The holders 16 and 16 are fixed to both ends with nuts 17 and 17, respectively. Although not shown, the position of the hole is adjusted as appropriate so that the connecting bolt that passes through the holes 14c and 14d does not collide with the connecting bolt that passes through the holes 14a and 14b.
[0014]
As shown in FIG. 6, the holder 16 is provided with a mounting portion 16b at the top of a triangular arm 16a. The holder 16 is inserted into the mounting hole 16c of the mounting portion 16b for positioning, and a nut 18 is positioned. Secure with. Since the hole 16d through which the connecting bolt 15 formed in the bottom surface of the arm 16a of the holder 16 is formed as a long hole, the attachment position of the holder 16 can be finely adjusted.
Thus, two sets of through holes are provided in the pipe of the claw shaft 2, and two sets of holders 16 are attached to the claw shaft 2 through the connecting bolts 15, respectively, and the four anti-winding rods 6 are arranged. It is also possible to attach six winding prevention rods 6 by providing three sets of through holes in the pipe of the claw shaft 2.
[0015]
FIG. 7 is a perspective view showing another embodiment of the present invention.
In this embodiment, a triangular plate-shaped holder 19 is attached to the flange portion 7 of the claw shaft 2 by directly fastening with a bolt 20, and the end portion is bent into a U-shape in the mounting hole 19 b of the attachment portion 19 a of the holder 19. The tip of the anti-winding rod 6 is inserted and positioned from the reverse side and fixed with the nut 21. By attaching a plurality of holders 19 to the flange portion 7, a plurality of anti-winding bars 6 can be arranged.
According to this embodiment, the anti-winding rod can be attached to any kind of claw shaft, and the end of the anti-winding rod is made U-shaped so that the end is near the flange portion of the claw shaft. Since it does not protrude at this point, there is no grass catching or entanglement at this portion, and the effect of preventing winding can be further enhanced.
[0016]
【The invention's effect】
As explained in detail above, the rotary tiller of the present invention attaches the tilling claws (3) radially to the pawl shaft (2) of the tillage portion via the pawl holder (8), In the rotary tiller that rotates and rotates, the holder (10) is disposed at both ends of the claw shaft (2) separately from the claw holder (8), and is in the longitudinal direction of the claw shaft (2). The claw holders (8, 8) are arranged on both sides of the holder (10). The holder (10) has a base part (10a) configured in two or four parts, and the position of the outer end of the arm is a claw holder. It comprises a plurality of arms (10b) that are outside the outer diameter of (8), and mounting portions (10c) that are respectively formed on the plurality of arms (10b), and a plurality of anti-winding rods (6). It is configured to be detachably attached to the attachment portion (10c), and the winding In a position spaced apart preventing bars (6) from Tsumejiku (2), and painted the root space and the Tsumejiku (2) and parallel to mounting structure of the tilling claws (3), further, the two-divided Alternatively, the base part (10a) divided into four parts is fastened with bolts (11) and nuts (12) and fixed to the claw axis (2). Even if the grass gets tangled directly, and even if the grass gets entangled with the anti-winding rod, it is easy to come off immediately, and even if it does not come off completely, it can only be easily removed later. Since the grass is not entangled, no deterioration in tillage performance occurs, so that good tillage work can be continued and the conventional troublesome grass removal work is hardly required.
In particular, the base part (10a) divided into two or four parts is fastened with bolts (11) and nuts (12) and fixed to the claw shaft (2). It can be easily mounted on the claw shaft.
Furthermore, it can be easily attached and detached, and the adjustment of the position through which the anti-winding rod is passed can be easily performed.
[Brief description of the drawings]
FIG. 1 is a side view showing a schematic configuration near a tillage portion of a rotary tiller according to the present invention.
FIG. 2 is a front view showing a configuration near a claw shaft.
FIG. 3 is a perspective view showing a structure for attaching a winding prevention rod.
FIG. 4 is a perspective view of a holder.
FIG. 5 is a perspective view showing another embodiment of the present invention.
FIG. 6 is a perspective view of a holder.
FIG. 7 is a perspective view showing another embodiment of the present invention.
[Explanation of symbols]
1 Transmission Case 2 Claw Shaft 3 Tillage Claw 4 Sprocket Shaft 5 Undershaft Flange 6 Winding Prevention Rod 7 Claw Shaft Flange 8 Claw Holder 10 Holder 15 Connection Bolt 16 Holder 19 Holder

Claims (1)

In the rotary tiller for attaching the tillage nail (3) radially to the nail shaft (2) of the tillage part via the nail holder (8) and performing the tillage work by rotating the tillage nail (3),
Holders (10) are provided at both ends of the claw shaft (2) separately from the claw holder (8), and the claw holders (8) are arranged in the longitudinal direction of the claw shaft (2) on both sides of the holder (10). , 8) are arranged,
The holder (10) includes a base (10a) configured in two or four parts, a plurality of arms (10b) whose outer end positions are outside the outer diameter of the claw holder (8), It comprises an attachment part (10c) formed on each arm (10b), and a plurality of anti-winding bars (6) are detachably attached to the attachment part (10c). ) at a location spaced from Tsumejiku (2), and painted the root space and the Tsumejiku (2) and parallel to mounting structure of the tilling claws (3), further, the two-divided or four-divided A rotary tiller characterized in that the divided base portions (10a) are fastened with bolts (11) and nuts (12) and fixed to the claw shaft (2).

Images