JP2002165501A - Rotary cover for tending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary cover for a tending machine solving the problems that tilled soil splashed up by a rotary tilling apparatus tends to adhere to the lower part of a rotary frame and makes a hindrance to tilled soil flow, resulting in nonuniform tilled soil distribution or making the rotary cover itself heavier and thereby declining in operability, besides, because the cover member is made up of two components in left and right, fine tuning of tilled soil flow in the guide direction is difficult, thus leading to no uniform tilled soil distribution even if tilled soil flow undergoes no hindrance. SOLUTION: This rotary cover for a tending machine has such a scheme that the lower part of a rotary frame 27 is provided with a structure for preventing adherence of tilled soil splashed up by a rotary tilling apparatus 4; wherein the structure is of V-shaped form opened upward; and the cover member is made up of three sheets of divided cover members 6, 7 and 8 in the width direction of the machine body, and junction mechanisms 11 and 12 enabling these divided cover members to be turnable at specified respective angles and fixable are set up between the divided cover members 6, 7 and 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cover of a management machine in which a cover member is disposed on a rotary frame provided in the longitudinal direction of a machine body, and the cover member covers an upper portion of a rotary tilling apparatus. The present invention relates to a structure for preventing cultivated soil from adhering to a lower portion and an angle adjusting structure for a cover member.

[0002]

2. Description of the Related Art Conventionally, in a management machine, cultivated soil cultivated by a rotary cultivator is guided by a rotary cover and formed into a ridge shape, or a groove is formed by jumping up, so that cultivated soil is formed on both sides. When flipping up, the angle of opening of the cover member of the rotary cover is adjusted so that the cultivated soil is brought into contact with the inner surface, guided in the lateral direction of the machine body, and flipped up to a desired height. The left and right cover members are pivoted upward about an axis in the longitudinal direction of the fuselage to open and adjust the flip-up angle.

[0003]

However, the tilled soil that has been flipped up by the rotary tilling apparatus tends to adhere to the lower surface of the rotary cover, particularly to the lower portion of the rotary frame where the lashed up soil first collides with the soil. Due to the advanced solidification of the cultivated soil mass, the flow of cultivated soil by the rotary cover (hereinafter referred to as “cultivated soil flow”) is obstructed, and there is a problem that it is not possible to jump up to a desired position or the crushability is deteriorated. . And the rotary cover itself becomes heavy because of this cultivated soil mass, and there is also a problem that it becomes difficult to turn the body by lifting the rotary tilling device at the ridge.

In many cases, the cover member is at most composed of a main cover and a side cover, and it is difficult to finely adjust the guide direction of the cultivated soil flow. However, there has been a problem that a predetermined amount of cultivated soil cannot always be dropped to a position suitable for soil conditions, crop types, and the like. And
The fine adjustment operation itself in the direction of the tillage flow guide is not easy,
There is a problem that the setting takes time and the burden on the operator is large.

[0005]

The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described. That is, in claim 1, a cover member is disposed on a rotary frame provided in the longitudinal direction of the fuselage, and the cover member covers the upper portion of the rotary tilling device in a rotary cover of a management machine. It is provided with a V-shaped arable soil adhesion preventing member.

According to a second aspect, the cultivated soil adhesion preventing member is configured to be detachable from a rotary frame.

According to a third aspect of the present invention, a cover member is disposed on a rotary frame provided in the longitudinal direction of the fuselage, and the cover member covers the upper part of the rotary tilling apparatus. The left and right cover members are each composed of three divided cover members arranged in the width direction of the fuselage, and a coupling mechanism that can be rotated and fixed at a predetermined angle between the divided cover members is provided. It is a thing.

[0008]

Next, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a left side view of the management device of the present invention, FIG.
3 is a perspective view of the lower rotation posture, FIG. 4 is a perspective view of a V-shaped structure, FIG. 5 is a right rear view of a rotary cover showing a V-shaped structure, and FIG. 6 is a rotary cover showing another form of a V-shaped structure. 7 is an explanatory diagram of the cultivated soil flow.

First, the overall configuration of the management machine will be described with reference to FIG. Note that the direction indicated by the arrow 60 in the figure is the front of the aircraft. The management machine 1 has an engine 2 mounted on a front engine frame 20, and a fuel tank 21 is mounted on the engine 2. The engine frame 20
Are protruded forward from the transmission case 3, and pulleys 63 and 64 are fixed to the input shaft 61 of the transmission case 3 and the output shaft 62 of the engine 2, respectively.
Power is transmitted via a belt 65.
A belt tension type main clutch 66 is disposed between the output shaft 62 and the input shaft 61 and is operated by a main clutch lever (not shown). The main clutch lever, the belt 65, the pulleys 63 and 64, It is covered by the transmission case 22. An axle 24 is pivotally supported at the lower part of the transmission case 3, and wheels 25 are fixed to the axle 24 so as to be able to drive.

A rotary drive pipe 23 is provided to project rearward and downward from the transmission case 3, and a tilling claw shaft 26 is pivotally supported at a lower end of the rotary drive pipe 23. Several tilling claws are planted.
The upper and lateral sides of the rotation locus 30 of the tip of the tilling claw are covered by the rotary cover 5 according to the present invention, and the rotary cover 5 is attached to a rotary frame 27 protruding rearward from the transmission case 3. hand,
The cultivated soil is guided to the side. At the rear end of the rotary frame 27, an attachment fixing boss 29 is fixed, and a gauge wheel 28 is attached.
Is composed.

A handle base 31 is provided on the upper part of the transmission case 3. A base 32a of a handle 32 is mounted on the handle base 31 so as to be rotatable around a vertical axis. Handle 3 upward and backward
2 is projected so that the vertical angle can be adjusted. A lock lever 34 for fixing the handle 32 at a position where the handle 32 is moved forward or backward is disposed on the base 32a. In the middle of the handle 32, a PTO on / off lever 1 is provided.
9 is provided, and the PTO on / off lever 19 is
7 and connected to the PTO on / off arm 55
The on / off arm 55 is connected to a PTO clutch as PTO on / off means in the transmission case 3. A main clutch lever, a side clutch lever, an accelerator lever, and the like (not shown) are disposed at a rear portion of the handle 32.

A main transmission lever 33 protrudes near the left side of the handle base 31, and a sub transmission lever 68 protrudes below the main transmission lever 33. Also, near the right side of the handle base 31, the PTO on / off arm 55 is provided.
A parking brake lever 67 for operating a parking brake mechanism protrudes below the PTO on / off arm 55.

Next, the structure for adjusting the angle of the rotary cover 5 will be described. As shown in FIGS. 2, 3, and 5, a pair of left and right inner covers 6R and 6L and a pair of right and left Inside cover 7R
7L and a pair of left and right outer covers 8R and 8L are provided,
Among them, sagging covers 13, 13 and sagging covers 14, 14 are respectively suspended from the front and rear ends of the inner cover 6R, 6L and the middle cover 7R, 7L. I'm trying not to get rid of it. The inner covers 6R and 6L are
It is pivotally connected to the rotary frame 27 via connecting members 10 such as hinges which are swingable about the axis in the longitudinal direction of the machine, and is pivotally connected to the rotary frame 27. The angle can be adjusted via the connecting mechanism 9. And

In the connecting mechanism 9, the inner cover 6R
A pair of front and rear pivots 16 and 16 are respectively protruded from the upper surface of the 6L, and a support shaft 36 is suspended between the pivots 16 and 16 in the front and rear direction, and the base of the swing arm 18 is pivotally mounted on the support shaft 36. Is tied. Elongated holes 18a, 18a are opened at the tip ends of the left and right swing arms 18, 18, respectively.
a and 18a are overlapped on the upper part of the support post 15 erected on the rotary frame 27 and overlapped with the elongated holes 18a and 1a.
The screw portion 35a of the adjustment knob 35 is screwed into the screw hole 15a above the support post 8a.

In such a configuration, the adjusting knob 35
The inner covers 6R and 6L are connected with the connecting tools 10.1
When the swing arm 18 is rotated about the center position 0, the swing arm 18 slides along the screw portion 35a.
5 by tightening the left and right inner covers 6R and 6L.
Can be fixed at a predetermined angular position.

The inner covers 6R and 6L and the middle cover 7R
.7L, middle cover 7R, 7L and outer cover 8R
-Connecting mechanisms 11 and 12 are interposed between 8L. The connecting mechanisms 11 and 12 are different from the connecting tool 10 composed of a normal hinge or the like so that the inner covers 6R and 6L and the middle covers 7R and 7L can be fixed to the angle at the time of turning while being manually turned. I have to. In this embodiment, since the rotary cover 5 is substantially symmetrical in the left-right direction, the right connecting mechanism 1
This will be described with reference to 1 and 12.

That is, the connecting mechanism 11 includes a cylindrical boss 11b provided at the outer end of the inner cover 6R, a cylindrical boss 11c provided at the inner end of the middle cover 7R, and the boss 11c.
Link 1 bridged between the boss 11b and the boss 11b
1a, and the contact portion between the outer peripheral surface of the link 11a and the inner surfaces of the boss portions 11b and 11c is manually rotatable, but its own weight of each cover, and vibration and bouncing during tilling work The impact of arable soil generates a frictional force that cannot rotate. The connection mechanism 12 is also the same, and includes a cylindrical boss 12b provided on the outer end of the middle cover 7R, a cylindrical boss 12c provided on the inner end of the outer cover 8R, and the boss 12c and the boss. 12b
And a link 12a in the form of a bridge, which can be manually rotated. However, it is not possible to rotate the cover due to its own weight, vibration during tilling work, or the impact of bouncing cultivated soil. I am immobilized.

That is, the cover member is composed of an inner cover 6, a middle cover 7, and an outer cover 8, which are three divided cover members arranged in the lateral width direction of the body, and the inner cover 6, the middle cover 7, and the outer cover. Since the connecting mechanisms 11 and 12 which can be rotated and fixed at a predetermined angle and are fixed are provided between the positions 8, the posture of each cover member can be more finely adjusted as compared with the case where the number of cover members is two or less. Thus, a predetermined amount of cultivated soil can be dropped to a position suitable for soil conditions, crop types, and the like.

The connecting portions of the connecting mechanisms 11 and 12 include:
Since a large moment does not act as much as the coupling mechanism 9, it is not necessary to comprise a plurality of mechanisms including an angle adjusting mechanism such as the swing arm 18 and a fixing mechanism such as the adjusting knob 35 as in the coupling mechanism 9, and the angle adjusting mechanism is not required. Alternatively, a simple single mechanism that also serves as a fixing mechanism may be used.

That is, since the coupling mechanisms 11 and 12 are each composed of only a single mechanism, in this embodiment, only a simple rotating mechanism, fine adjustment of the guide direction of the cultivated soil flow can be easily performed, and the angle can be easily adjusted. While reducing the time required for adjustment,
The burden on the operator can be reduced.

Next, a structure for preventing the soil from being adhered to the rotary cover 5 will be described. As shown in FIG. 4 and FIG.
Is provided. The cultivated soil adhesion preventing member 37 has a substantially V-shaped cross section (rear surface) as viewed upward, and has left and right side surfaces 37.
d, a fixing recess 37b is formed.
And a screw hole is formed up to the lower portion of the rotary frame 27, and a fastener such as a bolt is screwed into the screw hole to mount and fix the cultivated soil adhesion preventing member 37 to the lower portion of the rotary frame 27.

In such a configuration, when the tilling operation is performed, the tilled soil flow caused by the tilled soil is cut off at the tip portion 37a without being deposited on the lower surface of the cultivated soil adhesion preventing member 37 and is divided into right and left. , As it is, the inner surfaces of the inner covers 6R and 6L → the inner surfaces of the middle covers 7R and 7L → the outer cover 8
The aircraft is guided laterally along the inner surface of the cover member in the order of the R / 8L inner surface, and cultivated soil is scattered and dropped to a predetermined position.

That is, a cover member is provided on a rotary frame 27 provided in the front-rear direction of the machine body, and the cover member covers the upper part of the rotary tilling device 4 in the rotary cover 5 of the management machine 1.
7, a cultivated soil adhesion preventing structure for preventing adhesion of cultivated soil that has been flipped up by the rotary tilling device 4 is provided. As it is scattered as it is, it is possible to prevent the formation of cultivated soil mass due to cultivated soil deposition, so that the cultivated soil flows uniformly without being hindered by the cultivated soil mass, the scattering direction can be maintained constant, and the cultivated soil distribution can be uniformed . In addition, it is possible to prevent the rotary cover itself from becoming heavy due to the accumulation of the cultivated soil, and to easily perform the turning of the machine by lifting the rotary tilling device at the ridge, thereby improving the operability of the machine.

Further, as described above, the cover member is constituted by the three divided cover members 6, 7, 8 arranged in the lateral width direction of the body, and is turned at a predetermined angle between the divided cover members 6, 7, 8. When the connecting mechanisms 11 and 12 that can be moved and fixed are provided, the posture of each cover member can be more finely adjusted as compared with the case where the number of cover members is two or less. Since a predetermined amount of cultivated soil can be dropped to an appropriate position, it is possible to obtain an appropriate, uniform, and good cultivated soil distribution in combination with the uniformity of the cultivated soil flow by the cultivated soil adhesion prevention structure.

In this embodiment, the cultivated soil adhesion preventing members are provided separately as cultivated soil adhesion preventing members, but may be formed integrally with the rotary frame, and are not particularly limited. Absent.

Since the cultivated soil adhesion preventing structure is a V-shaped structure which is open upward from below, as shown in FIG. It is cut at the cut end 37a and is divided into right and left, and flows in parallel along the side surface 37d. Therefore, the cultivated soil is less likely to adhere, and even if the cultivated soil attempts to adhere and accumulate, the adhered cultivated soil is flushed together with the cultivated soil flow, and the cultivated soil can be reliably prevented from being adhered.

Here, when the tip angle 37c, which is the inner angle of the tip portion 37a, is small, the cultivated soil flow becomes sharper at the tip portion 37a.
As the flow is cut right and left and right, it flows along the side surface 37d at a high speed without decreasing the flow velocity, and the cultivation soil adhesion to the rotary frame 27 is further prevented. The deceleration effect of the member 37 is small, and the vehicle 37 collides with the inner surfaces of the inner covers 6R and 6L, the middle covers 7R and 7L, and the outer covers 8R and 8L at high speed. Therefore, depending on the conditions of the tilling operation and the cultivated soil, the cultivated soil adheres to the collision portion and is solidified.

On the other hand, when the tip angle 37c is too large, the cultivated soil flow easily collides with the side surface 37d from the front, and the adhesion of the cultivated soil is promoted, and a cultivated soil mass is formed, thereby hindering the cultivated soil flow. Therefore, it is necessary to select an appropriate tip angle 37c according to the conditions of the tilling operation and the cultivated soil. In addition,
In addition to the tip angle 37c, the member 3 for preventing the cultivated soil from adhering to the ground, which affects the collision speed corresponding to the distance to the collision.
It is necessary to select an appropriate value for the height up to 7.

Therefore, the tip angle 37c, the height and the like are changed and optimized to further improve the effect of preventing cultivated soil from being adhered.
Another embodiment in which the detachability is further improved will be described. As shown in FIG. 6, the locking hook 38 is suspended from the lower surface of the rotary frame 27 and
At the top, a locking groove 40b is formed, and at the time of attachment / detachment, the locking groove 40b is slid back and forth along the locking hook 38 so that the cultivated soil adhesion preventing member 40 can be freely moved from the lower surface of the rotary frame 27. It has a detachable configuration.

In such a configuration, even if the characteristics of the cultivated soil change during the tilling operation, the cultivated soil adhesion preventing member 40 having an appropriate tip angle 37c and height is selected.
It can be mounted on the locking hook 38 on the spot and fixed with a fastener (not shown).

That is, the V-shaped structure is a V-shaped cultivated soil adhesion preventing member 4 detachable from the rotary frame 27.
0, it can be replaced in a short time with a cultivated soil adhesion preventing member 40 suitable for cultivated soil adhesion prevention, without having to interrupt the work for a long time, and additionally, when the cultivated soil adhesion preventing member 40 is worn out. Replacement can be performed easily, and maintainability can be improved.

[0032]

The present invention has the following effects because it is configured as described above. That is, as in claim 1,
A cover member is disposed on a rotary frame provided in the longitudinal direction of the fuselage, and a V-shaped rear view of cultivated soil adhered to a lower portion of the rotary frame in a rotary cover of a management machine in which an upper portion of a rotary tilling device is covered by the cover member. With the provision of the members, the cultivated soil that has been flipped up by the rotary tilling device is scattered as it is without adhering to the lower part of the rotary frame, and it is possible to prevent cultivated soil from forming due to cultivated soil deposition. It can flow uniformly without being disturbed, and can keep the scattering direction constant to achieve a uniform distribution of cultivated soil. In addition, the rotary cover itself can be prevented from becoming heavy due to the accumulation of cultivated soil, and the rotary tilling device can be easily lifted up at the levee to turn the fuselage, improving the operability of the fuselage. It is. The tilled soil flow caused by the tilled soil that has been flipped up is cut at the tip end formed at the lower end of the cultivated soil adhesion preventing member, is divided into right and left, and flows in parallel along the side surface. Therefore, the cultivated soil is less likely to adhere, and even if the cultivated soil tries to adhere and accumulate, the adhered cultivated soil is washed away together with the cultivated soil flow, so that the cultivated soil can be reliably prevented from being adhered.

In the second aspect, the cultivated soil adhesion preventing member is configured to be detachable from the rotary frame.
It can be replaced in a short time with a cultivated soil adhesion prevention member that is suitable for preventing cultivated soil adhesion, so that the work is not interrupted for a long time. In addition, when the cultivated soil adhesion prevention member is worn out, it can be easily replaced and maintenance is easy. Can be improved.

According to a third aspect of the present invention, a cover member is provided on a rotary frame provided in the longitudinal direction of the fuselage, and the cover member covers the upper part of the rotary tilling device. The left and right cover members are each composed of three divided cover members arranged in the width direction of the fuselage, and a coupling mechanism that can be rotated and fixed at a predetermined angle between the divided cover members is provided. Therefore, the posture of each cover member can be adjusted more finely than when the number of cover members is two or less,
A predetermined amount of cultivated soil can be dropped to a position suitable for the condition of the soil and the type of crop, etc., and in combination with the uniformization of cultivated soil flow by the cultivated soil adhesion prevention structure, it is possible to obtain a proper, uniform and good cultivated soil distribution. . In addition, the posture of each cover member can be more finely adjusted than in the case where the number of cover members is two or less, and a predetermined amount of cultivated soil can be dropped to a position suitable for soil conditions, crop types, and the like. .

[Brief description of the drawings]

FIG. 1 is a left side view of a management machine of the present invention.

FIG. 2 is a perspective view of a rotary cover in an upper rotation posture.

FIG. 3 is a perspective view of the lower rotation posture.

FIG. 4 is a perspective view of a V-shaped structure.

FIG. 5 is a right rear view of a rotary cover showing a V-shaped structure.

FIG. 6 is a right rear view of a rotary cover showing a V-shaped structure of another embodiment.

FIG. 7 is an explanatory diagram of a cultivated soil flow.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Management machine 4 Rotary tillage device 5 Rotary cover 6R ・ 6L ・ 7R ・ 7L ・ 8R ・ 8L Divided cover member 11.12 Connection mechanism 27 Rotary frame 37 ・ 40

Claims (3)

[Claims] 1. A rotary cover of a management machine in which a cover member is disposed on a rotary frame provided in a longitudinal direction of a body, and the cover member covers an upper portion of a rotary tilling device. A rotary cover for a management machine, comprising a cultivated soil adhesion preventing member. 2. The cultivated soil adhesion preventing member is detachably attached to a rotary frame.
Rotary cover of the management machine described. 3. A rotary cover of a management machine in which a cover member is provided on a rotary frame provided in the longitudinal direction of the fuselage, and the cover member covers an upper part of the rotary tilling device. The left and right cover members are each composed of three divided cover members arranged in the lateral direction of the fuselage, and a connection mechanism is provided between the divided cover members which can be turned at a predetermined angle and fixed. The management machine's rotary cover.