JP2534244Y2 - Excitation direction adjustment device for vibrator for shore coating machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting the direction of vibration of a vibrator for a shore coating machine which can shore-coat a paddy field by vibrating a shore coating shaping plate by a vibrator.

[0002]

2. Description of the Related Art Conventionally, in a shore coating machine capable of performing shore coating while oscillating a shore coating shaping plate by a vibrator vibrated by two rotatable eccentric weights mounted in parallel on a shaft, each eccentric weight is provided on each axis. A drive belt is mounted on the eccentric weight, and the eccentric weight is transmitted from one shaft to simultaneously rotate and drive the two eccentric weights.

[0003]

[Problems to be Solved by the Invention] However, since the phases of the two eccentric weights are fixed, the trajectory of the excitation force vector due to the two eccentric weights remains constant regardless of the soil conditions on the shore. However, there was a problem in that the finishing performance of hem coating was affected by soil conditions.

[0004]

SUMMARY OF THE INVENTION The present invention solves such a problem, and is devised so as to be adjustable so as to obtain an optimal trajectory of an excitation force according to soil conditions on the shore. A timing belt is mounted on both toothed shafts which are mounted on the same axis of the two eccentric weights, and the upper and lower wheels are pressed against upper and lower surfaces of the timing belt so as to sandwich the upper and lower portions of the timing belt between the two toothed wheels. Are vertically adjustable at the same time with predetermined intervals.

[0005]

Therefore, if the upper wheel and the lower wheel are vertically moved at the same time, the two wheels can be simultaneously rotated in opposite directions through the timing belt by the vertical movement. Since the phase of the eccentric weight is adjusted, the eccentric weight can be adjusted according to the soil conditions on the shore so that an optimal vector locus of the excitation force can be obtained, and the shore painting with a good finish can be performed.

[0006]

FIG. 6 shows a main part of a skirting machine, in which a vibrator 2 mounted on an upper part of a porcelain shaping plate 3 which can be shore-coated in a paddy field can be supported from a support frame 7 via each ramming machine 8. Although it is configured, in the case 2a of the vibrator 2,
The two parallel eccentric weights 1a and 1b are respectively supported on two parallel rotating shafts 9a and 9b, and the timing belt 5 is mounted on the two tooth rings 4a and 4b of the same diameter which are supported on the two rotating shafts 9a and 9b respectively. And a bracket 11 that can be moved up and down by rotating an upper adjustment screw 10.
FIG. 1 shows an upper wheel 6a and a lower wheel 6b that are vertically suspended at predetermined intervals, and that the upper and lower portions are sandwiched between the two tooth wheels 4a and 4b so that the timing belt 5 is tensioned. As described above, the upper wheel 6a and the lower wheel 6b are brought into pressure contact with the upper and lower surfaces, respectively, and the flexible shaft 12 extending from the machine side is operatively connected to the rotating shaft 9a.

Therefore, the power is transmitted to the vibrator 2 and FIG.
When the eccentric weights 1a and 1b are rotated in the directions indicated by the arrows a as shown in FIG. 4, the vibrator 2 vibrates and the edging shaping plate 3 is vibrated to perform the edging. As shown in FIG. 5, when the upper wheel 6a and the lower wheel 6b are simultaneously moved upward in the direction of arrow B, the lower wheel 6b raises the intermediate portion of the timing belt 5 and
The two eccentric weights 1a and 1b can be rotated in the directions of arrows c and d, respectively, so that the phases of the two eccentric weights 1a and 1b can be adjusted. Therefore, it is possible to adjust so as to obtain an optimal vector locus of the excitation force according to soil conditions on the shore.

FIG. 7 shows a case where a shore coating machine is mounted on the agricultural tractor A, and a hydraulic motor 13 is mounted on the side of the vibrator 2.
And a hydraulic pump 1 that can be driven by a rear PTO shaft 17 at the rear of the agricultural tractor A.
4, the hydraulic pump 14 and the hydraulic motor 13 are connected and connected via a pressure feeding hose 15 and a return hose 16 so that the agricultural tractor A can transmit the vibration to the vibrator 2 satisfactorily. is there.

FIGS. 8 to 11 show another example of the vibrator 2. The two eccentric weights 1a, 1b are engaged with gears 18, 19, respectively, which are mounted on the shafts thereof.
The eccentric weights 1a and 1b are configured to rotate in the directions of arrows E and F in directions opposite to each other so as to vibrate. In the states shown in FIGS. 9 and 11, the vectors are opposite in the horizontal direction and are canceled out, and in the states shown in FIGS. 8 and 10, the force components remain only in the downward and upward directions. Thus, it is possible to cause the edge-coated shaping plate to act vertically on the soil surface while vibrating in the vertical direction.

[0010]

As described above, according to the present invention, when the upper wheel 6a and the lower wheel 6b are simultaneously moved up and down, the two wheels 4a and 4b are simultaneously rotated in opposite directions via the timing belt 5 by the up and down movement. Both eccentric weights 1a, 1b
Can be adjusted according to the soil conditions on the shore so that an optimal vector locus of the excitation force can be obtained. The coating and shaping can be performed, and it has a feature that it can be easily implemented with a simple structure.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a vibrator according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a section taken along line II-II of FIG. 1;

FIG. 3 is a sectional view showing a section taken along line III-III in FIG. 1;

FIG. 4 is a sectional view showing a section taken along line IV-IV in FIG. 3;

FIG. 5 is an operation explanatory view showing an operation state of FIG. 1;

FIG. 6 is a front view showing the edge coating machine.

FIG. 7 is a side view showing the agricultural tractor and the shore coating machine.

FIG. 8 is a sectional view showing another example of a vibrator.

FIG. 9 is an operation explanatory view shown in a part of FIG. 8;

FIG. 10 is an operation explanatory view partially shown in FIG. 8;

FIG. 11 is an operation explanatory view partially shown in FIG. 8;

[Explanation of symbols]

 1a Eccentric weight 1b Eccentric weight 2 Vibrator 3 Side coating shaping plate 4a Tooth wheel 4b Tooth wheel 5 Timing belt 6a Upper wheel 6b Lower wheel

Claims (1)

(57) [Scope of request for utility model registration] 1. An eccentric weight 1a, 1b for a shore coating machine capable of applying edging while vibrating an edging shaping plate 3 by a vibrator 2 vibrated by two rotatable eccentric weights 1a, 1b suspended in parallel. The timing belt 5 is attached to the two toothed wheels 4a and 4b which are respectively supported on the same axis.
And the upper and lower wheels 6a and 6b pressed against the upper and lower surfaces of the timing belt 5 between the two gear wheels 4a and 4b so as to be simultaneously vertically adjustable while maintaining a predetermined interval. A vibration direction adjusting device for a vibrator for a shore coating machine, comprising: