JPS592185Y2 - Rice husk introduction tube in subsoiler - Google Patents

Description

[Detailed explanation of the invention] This invention crushes the hardened plowing soil by advancing the blade suspended underground, restoring air permeability and water permeability.At the same time, the rice husks in the rice husk hopper are used as a blower. This is a so-called subsoiler that further improves and maintains both air permeability and water permeability by discharging rice husks into the ground through the opening of the introduction pipe and filling the ground with the rice husks. This invention relates to improvements to this introduction tube in -.

As shown in Fig. 1, the introduction tube 1 in a conventional subsoiler of this type is formed into a hollow rectangular box shape and is attached to the rear part of the blade body 2 that hangs down into the ground. The rear plate 1a of the cylinder 1 has an opening 1t at the part sunk into the ground.
), the discharge part 4a of the blower 4 provided at the bottom of the rice husk hopper 3 and the introduction part 1b of the introduction tube 1 are connected by a flexible pipe 5,
This blower 4 opens the rice husks sent into the introduction tube 1 D
1b, the blade body 2 and the introducing tube 1 move forward to discharge and fill the groove formed in the ground.

Then, the discharge part 4a of the blower 4 and the introduction part 1C of the introduction tube 1
are airtightly connected by the flexible tube 5, and are discharged from the blower 4 because the cross-sectional shapes of the discharge section 4a, the flexible tube 5, and the introduction section IC are different from each other as shown in FIG. Exhaust air causes a large pressure loss in the vicinity of these parts, which causes the rice husks to get stuck in the narrowed parts and prevent the rice husks from flowing down smoothly.

Therefore, this invention aims to provide an improved introduction tube that eliminates such clogging phenomenon and performs efficient filling operation, and its configuration is shown in Figs. 2 to 5. 1 in a subsoiler in which the blade body 2 swings back and forth in the direction of movement centering on its upper part.
To explain based on an embodiment, a cutting body 2b having an upward slope at the lower part of a blade body 2 in the shape of a long and thin plate with a blade part 2a provided on the front edge.
A front plate 6a having a width that is approximately the same as the horizontal width of the blade body 2, side plates 6b extending rearward from both left and right edges of the front plate 6a, and a rear plate closing the rear part of the side plates Erb and 6b. An introduction tube 6 having a hollow rectangular cross section made of 6C is attached to the rear part of the blade body 2, and a notch 6d is made in the vicinity of the ground surface of this rear plate 6C.
In addition, the lower part of the rear plate 6C is opened 6e, and the upper part of the introduction tube 6 is expanded into a funnel shape as shown in FIG. A grain collecting cylinder lower b is provided on the bottom part 7a of the bottom shape, and the suction part 8a of the blower 8 attached to this bottom part 7a is communicated with the grain collecting cylinder lower b, and the discharge part 8b of this blower 8 is connected to the grain collecting cylinder lower b. The discharge part 8b is fitted into the introduction part 6f so that a gap 9 communicating with the outside air is formed between the outer periphery of the discharge part 8b and the inner periphery of the introduction part 6f.
to give form to.

As for the shape of the discharge part 8b, the illustrated example has a widening shape when viewed from the side as shown in FIG.
As shown in the figure, it is formed into a tapered shape so that a gap 9 is formed on the entire inner circumference of the introduction part 6f, so that when the exhaust from the blower 8 is ejected from the discharge part 8b to the introduction part 6f, this ejected flow The outside air is forcefully sucked into the air gap 9 by the introduction part 6.
This suctioned outside air acts to scrape off the rice husks adhering to the inner circumferential wall of f.

The rice husks collected by a screw 10 pivotally supported in the bottom 7a of the rice husk hopper 7 are suctioned from the suction part 8a of the blower 8, subjected to centrifugal force, and sent into the introduction part 6f along with exhaust from the discharge part 8b. The rice husks are discharged from the opening 6e at the bottom of the introduction pipe 6 and filled into the trench 11 which is being formed in the ground.

In addition, in the illustrated subsoiler, the mounting arm 12 is fixed to the upper part of the blade body 2, and the frames 13 and 13 provided at the front and rear
The base of the hilt mounting arm 12 is pivoted around a horizontal shaft 14 to form a vibrating blade 15 that can freely swing up and down around the shaft 14, and in order to vibrate the vibrating blade 15, a shaft is attached to the frame 13.13. The supported input shaft 16 has an eccentric portion 1 that is eccentric with respect to this shaft.
6a, a roller 17 is fitted into this eccentric part 16a so that it can only rotate freely, and the middle part is connected to a horizontal shaft 18.
A pushing plate 20 at the rear end of the swinging arm 19, which is pivotally supported at 22 and the rocking plate 23 fitted onto the roller 17 are shaped so that they can slide on the fitting surfaces of the two rollers 17 and 22, respectively, and the swing plate 23 is shaped so that it can slide on the fitting surfaces of the two rollers 17 and 22. When the input shaft 16 is rotationally driven by the PTO shaft, the eccentric portion 16a causes the swing plate 23 and the front part of the swing arm 19 to swing up and down, so the vibrating blade 15 also swings back and forth around the shaft 14. It will move.

Also, the bevel gear 24 attached to the rear end of the input shaft 16 rotates the blower 8 and a driven pulley 28 through a bevel gear 25 meshing with the bevel gear 24, a driving boonou 26, and a belt 27. The drive pulley 29 attached to the front of the input shaft 16 is configured to rotate a driven pulley 30 attached to the front of the screw 12 by means of a belt 31. There is.

Since the rice husk introduction tube according to this invention is configured as described above, the swing plate 23 swings up and down as the input shaft 16 rotates, and the swing arm 19 also swings the shaft 18 along with this. The vibrating blade 15 swings back and forth around the shaft 14, and the blade 1, which vibrates little by little, cuts through the hardened plowing platform, and the excavating body 2b cuts through the nearby plowing board. A groove 11 is formed behind the digging body 2b and the introduction tube 6 by crushing it.

The sukunoyu 1 driven by this input shaft 16
0 collects the rice husks from the rice husk hopper 7 into the grain collecting cylinder lower b, and the blower 8 rotated by this input shaft 16 is connected to the grain collecting cylinder lower b.
The rice husks sucked in from the suction part 8a that communicates with the air are ejected from the discharge part 8b into the introduction part 6f together with the compressed exhaust air by the blower 8, and the rice husks that have flowed into the introduction tube 6 flow into the groove 11 from the lower opening 6e. It is pushed and filled.

Then, the exhaust from the blower 8 flows from the discharge section 8b to the introduction section 6.
When the air is ejected into the inlet f, this ejected flow forcefully sucks the outside air into the gap 9 between the discharge part 8b and the introduction part 6f, and this flow of the drawn outside air is prevented from adhering to the inner circumferential wall of the introduction part 6f. It can effectively scrape off the rice husks that tend to get clogged.

In addition, by sucking outside air through the gap 9 provided in this way, it is possible to suppress a sudden change in exhaust pressure due to a change in the cross-sectional area of the joint between the discharge part 8b and the introduction part 6f. It was possible to eliminate the pressure loss that is likely to occur, and the flow of rice husks was made continuous and smooth.

Then, as in the embodiment, the rear plate 6 near the ground surface of the introduction tube 6
By making a notch 6d in C, for example, when rice husks overflow into the groove 11 due to speed reduction due to wheel slip of the power agricultural machine that is towing this subsoiler, the rice husks can be packed into the introduction pipe 6. Cut a certain rice husk into this notch 6
Since the rice husks can be released to the ground from d, there is also the advantage that accidents such as clogging of the introduction pipe 6 and the discharge part 8b of the blower 8 with rice husks can be well prevented.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing the structure of a conventional introduction pipe applied to a subsoiler, and Fig. 2 shows a subsoiler to which the rice husk introduction pipe according to this invention is applied, with the left side frame omitted. 1 part longitudinal side view, Fig. 3 is a sectional view taken along the line A-A with the vibrating blade omitted in Fig. 2, and Fig. 4 is a sectional view of the
An enlarged view of the vibrating blade in the figure, Figure 5 is B in Figure 4.
It is an arrow view. Code explanation 1, 6...Introduction tube, la, 5c...
... Rear plate, 1b, 6e ... Open D, I C,
6f...Introduction part, 2...Blade body, 2a.
...Blade part, 2b...Drilling body, 3,7...
...Rice husk hopper, 4,8...Blower, 4a
, 8b... Discharge section, 5... Flexible tube, 6
a...Front plate, 6b...Side plate, 6d...
...Notch, 7a...Bottom, 7b...
・Grain collection cylinder "1.8a...Suction part, 9...
・Void, 10... Screw, 11...
Groove, 12...Mounting arm, 13...Frame, 14.18...Shaft, 15...Vibration blade, 16...Input Shaft, 16a... Eccentric part, 17.22... Roller, 19...
・Swinging arm, 20...Pushing plate, 21...
Passive plate, 23... Swinging plate, 24.25.
...Bevel gear, 26.29...Drive pulley, 27.31...Bell l-128°30
・・・・・・Driver pulley

Claims (1)

[Scope of utility model registration request] An introduction cylinder 6 for discharging and filling rice husks into the ground is provided at the rear of the blade body 2 which is provided to move forward while hanging down in the ground, and a discharge part of a blower 8 for sending out the rice husks in a rice husk hopper 7 is provided. 8
A rice husk introduction tube in a subsoiler is formed by connecting a discharge portion 8b to an introduction portion 6f with a gap 9 communicating with the outside air interposed between the outer circumference of the introduction tube 6 and the inner circumference of the introduction portion 6f of the introduction tube 6.