JPH0847302A - Rotary device - Google Patents

Abstract

PURPOSE:To provide a rotary device designed to facilitate washing off the mud and soil attached to the periphery of a tilling shaft and the inner surface of a rotary cover after tilling operation of the rotary device mounted on a tractor. CONSTITUTION:This rotary device 1 mounted on a tractor is so designed as to be equipped with a 1st hollow shaft 15 provided with a rotary edge 2 and many holes 13, a 2nd hollow shaft 16 engaged with the inside of the 1st hollow shaft, having many holes 17 and movable by a specified distance relatively to the 1st hollow shaft, and a water feed means to feed water into the 2nd hollow shaft. When this rotary device is in operation, the holes 13 and 17 are not mutually matched; while, during washing operation, they are mutually matched, and water fed from the water feed means is passed through the matched holes 13, 17 and released externally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side drive type rotary device mounted on the rear of an agricultural tractor.

[0002]

2. Description of the Related Art Conventionally, as is known from Japanese Utility Model Publication No. 41-5126, water poured under pressure from a water tank attached to a cultivator or a water pump during cultivating work is attached to the cultivator. It is already known to inject water from a water pipe or a tilling shaft into a tilling work site and a rotary blade.

[0003]

During the tilling work, which is already known, water supplied from a water tank attached to the rotary device or water pumped by a water pump is supplied from a water injection pipe or a tillage shaft attached to the rotary device. The one that injects water into the plowing work site and the rotary blade is to increase the soil water content of the working site to improve the machinability of the rotary blade, and not to remove the mud adhesion at the end of the plowing work. Since there is none and the water inlet is always open, there is a risk that the water inlet will be blocked by the tilling soil during the tilling work.

[0004]

SUMMARY OF THE INVENTION The present invention provides a rotary blade (2) for a rotary device (1) mounted on a tractor.
First with a plurality of holes (13)
Hollow shaft (15), which is fitted inside the first hollow shaft (15) and has a large number of holes (17) and is movable by a predetermined amount with respect to the first hollow shaft (15). A second hollow shaft (16) and a water supply means capable of supplying water into the second hollow shaft (16) are provided, and the first and second hollow shafts (15) and (16) are provided. The holes (13) and (17) are not aligned with each other when the rotary device (1) is in use, and are aligned with each other during cleaning so that the water supplied from the water supply means is The above-mentioned problem was solved by constructing such a structure that it is diffused to the outside through the aligned holes (13) and (17).

[0005]

According to the above construction, when the side drive type rotary device (1) mounted at the rear of the agricultural tractor is used for cultivating work, the lever (20) provided on the second hollow shaft (16) is moved to the first position. Slot (1) provided in the hollow shaft (16) of
The second hollow shaft (16) is rotated along
The hole (13) of the hollow shaft (15) and the hole (17) of the inner second hollow shaft (16) are out of phase to perform the tilling work in a state where the both holes are not aligned with each other, and after the tilling work is completed. Stops the drive of the tiller shaft (2), and the lever (20)
And the second hollow shaft (16) is rotated, and the holes (13) and (17) of the hollow shafts (15) and (16) are rotated.
While aligning the phases of and rotating the tiller shaft (2),
Water supplied from a water supply device (23) arranged outside is diffused from the aligned holes (13) and (17) to around the cultivating shaft and adhered to the rotary cover (6) during cultivating. Remove dirt and clean.

The reference numerals in parentheses are for the purpose of contrasting with the drawings, but do not limit the structure of the present invention.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

A side drive type rotary device 1 mounted on the rear side of an agricultural tractor receives power from an engine mounted on the agricultural tractor to drive a cultivating shaft 2 to drive the cultivating shaft 2.
By rotating a large number of rotary blades 3 arranged on the outer periphery of the soil, the soil is cultivated and crushed. That is, in the side drive type rotary device 1, the power of the engine is received by the transmission of the central portion of the rotary device 1, and the tiller shaft 2 is moved by the chain transmission in the transmission case provided on either the left or right side. To drive.

As shown in FIGS. 1 and 2, a side plate 5 for supporting the other end of the tilling shaft 2 is provided on the side opposite to the transmission case, and the upper portions of the transmission case and the side plate 5 are located at the central portion. The rotary device 1 is connected to the case of the transmission to form an external structure. Inside the structures, the upper surface and the left and right side surfaces of the tiller shaft 2 are covered with a thin plate-type loriter cover 6 in order to prevent the scattering of the soil repelled by the rotation of the rotary blade 3 at the time of plowing. Reference numeral 6 is fixed to a structure constituting the outer structure of the rotary device 1.

A support plate 7 having an outward flange is mounted on the lower part of the side plate 5 on the non-driving side, and the central part of the lower part of the support plate 7 is the non-driving part of the tiller shaft 2. A bearing case 10 that supports the shaft end portion 8 on the side and an oil seal 11 that prevents intrusion of muddy water into the bearing 10 are formed to form a support case 12. Tillage axis 2
A first hollow shaft 15 provided with a rotary blade 3 and having a large number of holes 13, and a first hollow shaft 15 fitted inside the first hollow shaft 15 and having a large number of holes 17 are provided with the first hollow shaft 15. A second hollow shaft 16 that can move a predetermined amount with respect to the hollow shaft 15.
It is established from.

Near the shaft end of the first hollow shaft 15 shown in FIG.
As shown in FIG. 3, a long hole 18 is provided in the circumferential direction, and a lever 20 erected on the second hollow shaft 16 corresponding to the position engages with the long hole 18, and the second hollow shaft 16 is , The first hollow shaft 1
It is possible to rotate a predetermined amount within the range of the long hole 18 with respect to 5, while rotating in the forward rotation direction of the first hollow shaft 15 at the time of plowing.
When the lever 20 of the second hollow shaft 16 is engaged with one end of the long hole 18, the hole 13 and the hole 17 do not align with each other, and the driving of the tiller shaft 2 is stopped after the end of the tilling work. When the lever 20 is artificially rotated to the other end of the elongated hole 18, the hole 13 and the hole 17 are formed so as to be aligned with each other.

The non-driving side shaft end of the second hollow shaft 16 is closed by a shaft end cover portion 21 of the first hollow shaft 15 as shown in FIG. The pipe 22 is formed through the center of the shaft end 8 and communicates with the inside of a joint 23 provided outside the support plate 7.

As shown in FIG. 1, the joint 23 is formed in a box shape, and is fixed to the side plate 5 together with the support plate 7 by an L-shaped stay 24 extending upward from the lateral upper surface. A water leakage preventing seal 25 is attached to the side hole communicating with the pipe 22, and the opposite hole is also plugged.
Blocked by 6.

In addition, a water injection port 27 is extended upward from the central upper surface of the joint 23, and a cap 28 is covered on the upper end of the joint 23 to prevent intrusion of muddy water and earth mass during cultivating work. Further, as shown in FIGS. 2 and 3, a protector 29 is attached to the support plate 7 in front of the joint 23 in the traveling direction to prevent damage due to collision with an obstacle such as a clod of soil during the plowing work. are doing.

A flange 30 is fixed to the outer side of the shaft end cover portion 21 of the first hollow shaft 15, and a flange 31 is fixed to the shaft end portion 8 near the first hollow shaft 15. And 31 are fastened with bolts 32, and the first hollow shaft 1
5 and the shaft end portion 8 are adapted to rotate concentrically.

On the outer side of the support case 12 described above,
A bowl-shaped cover 33 is attached so as to cover the outer circumference of the flange 31, and a labyrinth effect is provided to reduce the gap between the inner circumference of the cover 33 and the outer circumference of the flange 31 to prevent muddy water from flowing into the bearing 10 and the oil seal 11. Prevents intrusion.

Now, when cultivating work using the rotary device 1, the lever 20 is artificially moved along the elongated hole 18 so that the second hollow shaft 16 is moved relative to the first hollow shaft 15. Rotate it to a position where holes 13 and 17 do not align with each other,
The water injection port 27 of the joint 23 is covered with the cap 28 for operation.

After the plowing work is completed, the tractor is transported to the position of the water supply device, the driving of the plowing shaft 2 is stopped, the lever 20 is artificially moved along the long hole 18, and the second hollow shaft 16 is moved. Is rotated with respect to the first hollow shaft 15 so that the holes 13 and 17 are aligned with each other, the cap 28 of the water injection port 27 is removed to connect the water supply device and the water injection port 27, and in this state When the water is poured while rotating the shaft 2, the water is diffused through the joint 23, the pipe 22, the hole 17 and the hole 13 to the periphery of the cultivating shaft 2 and the inner surface of the rotary cover 6, and the mud adhered to the portion is washed away. To wash.

It should be noted that the lever 20 is artificially made into a long hole 18
Instead of moving along, hold the rotary blade 3
The holes 13 and 17 can also be aligned with each other.

[0020]

According to the present invention, in a rotary device mounted on a tractor, a first hollow shaft provided with a rotary blade and having a large number of holes, and fitted inside the first hollow shaft, and A second hollow shaft having a large number of holes and capable of moving a predetermined amount with respect to the first hollow shaft; and a water supply means capable of supplying water into the second hollow shaft, 1
And the holes of the second hollow shaft are not aligned with each other when the rotary device is in use, and are aligned with each other during cleaning, and the water supplied from the water supply means is aligned with the holes. Since it is configured to be diffused to the outside through the through, it becomes easy to clean the mud attached to the periphery of the tilling shaft and the inner surface of the rotary cover after the tilling work.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a water supply device.

FIG. 2 is a side view of the water supply device.

FIG. 3 is a sectional view of a cultivating shaft.

[Explanation of symbols]

 2 Tillage shaft 3 Rotary blade 5 Side plate 7 Support plate 13 Hole 15 First hollow shaft 16 Second hollow shaft 17 Hole 18 Long hole 23 Joint 27 Water injection port

Claims (1)

[Claims] 1. A rotary device mounted on a tractor, comprising: a first hollow shaft provided with a rotary blade and having a large number of holes; and a plurality of holes fitted inside the first hollow shaft. A second hollow shaft which has the second hollow shaft and which can move a predetermined amount with respect to the first hollow shaft, and water supply means which can supply water into the second hollow shaft. The holes of the hollow shaft are not aligned with each other when the rotary device is in use, but are aligned with each other during cleaning, and the water supplied from the water supply means passes through the aligned holes. A rotary device characterized by being diffused to the outside.