JP2555915Y2 - Work equipment bucket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket for a working machine, and more particularly to a bucket suitable for earth removal from an agricultural waterway.

[0002]

BACKGROUND OF THE INVENTION In order to supply water to agricultural land, the mud and sand around the irrigation channel flow into the agricultural irrigation channel provided on the agricultural land every time heavy rain falls, so that the bottom gradually becomes shallower. , The groove width is also reduced.

[0003] For this reason, it is necessary that the above-mentioned irrigation canal is periodically subjected to earth removal work so that the groove width and groove depth do not become lower than predetermined values.

[0004] A work vehicle, for example, a tractor, which is used by connecting various working machines to the rear or the front, is used for the above-mentioned unloading work of the agricultural irrigation canal, and a backhoe is provided at the rear of the tractor. The earth removal work is performed by the bucket at the tip.

FIG. 9 shows a state in which a backhoe (10) is connected to the rear of the tractor (1).

In FIG. 1, (2) is a tractor (1)
, A lower link of a three-point link hitch generally installed at the rear, (3) is a top link, and (4) is an auto hitch attached to a tip of the lower link (2) and the top link (3). is there.

[0007] An engaging pin (12) provided on the main frame (11) of the backhoe (10) is fitted into a receiving portion (5) provided on the auto hitch (4) to thereby form the tractor (1). The backhoe (10) is connected to and supported by the rear part of ()).

In the figure, (13) is a first arm supported on a main frame (11) via a turning frame (14), and (15) is a first arm (13) at one end.
And the other end connected to the bucket (16).
Arms (17), (18) and (19) are the first and second arms.
And hydraulic cylinders for varying the angles of the arms (13) and (15) and the bucket (16).

A turning hydraulic cylinder (not shown) is also incorporated between the main frame (11) and the turning frame (14), and the turning frame ( 14) is turned.

[0010]

[0007] When the above-mentioned backhoe (10) is used for unloading the irrigation canal, FIG.
When the tractor (1) can work across the irrigation canal (A), the direction of the irrigation canal (A) and the backhoe (1
0) because the orientation of the bucket (16) matches,
The work of discharging the irrigation canal (A) can be performed relatively smoothly.

However, the tractor (1) is rarely able to work over the irrigation channel (A). Usually, as shown in FIG. 8, the tractor (1) is arranged along the irrigation channel (A). In many cases, unloading work of the irrigation channel (A) is performed.

In order to perform the earth discharging work in the above positional relationship, the turning frame (14) of the backhoe (10) is turned, and the bucket (16) at the tip of the second arm (15) is placed above the water channel (A). After being positioned, the bucket (16) is made to enter the irrigation channel (A), and mud, sand, etc. in the irrigation channel (A) are scooped up.

However, when the work is performed in the above positional relationship, the bucket (16) of the backhoe (10) and the irrigation canal (A)
When the backhoe (10) is operated by a slight error, the bucket (16) hits a concrete wall in the irrigation canal (A) where the surroundings are solidified with concrete. There was a problem that said to hurt.

When the bucket (16) and the irrigation channel (A) make a predetermined angle, it is impossible to completely scoop up mud and sand in the irrigation channel (A), and it is said that mud is left unraveled. There were also problems.

Further, in the irrigation canal (A) in which the surroundings are soil, it is difficult to dig a groove having a uniform depth, which requires skill, and the amount of sediment that can be scooped at one time is small. There was also a problem that said.

[0016]

Means for Solving the Problems A first and a second bucket, which are arranged opposite to each other and provided at the end of an arm of a working machine connected to and supported by a working vehicle, are opened and closed with a connecting pin passing through an overlapping portion of both buckets as a center of rotation. A second bucket body and the first bucket body;
And a link mechanism for opening and closing the second bucket body by one cylinder, wherein each of the bucket bodies is connected to a rectangular board connected to the link mechanism and a long side on the outer side of the board. Formed by a bottom plate extending downward and a triangular side plate fixed to both sides of the substrate and the bottom plate,

The above link mechanism has a first end pivotally connected to a tip end of an arm of a working machine, and a second end connected to a cylinder.
And a second link having one end connected to the cylinder and the other end connected to the substrate of the second bucket body.
One end is pivotally connected to the tip of the arm, the other end is connected to the second bucket body in a detachable manner with a third link, and if necessary, one end is connected to the second bucket body, and the other end is connected to the second bucket body. ,
And a connecting link connected to an intermediate portion of the first link.

[0018]

By arranging the first and second bucket bodies of the bucket configured as described above along the irrigation channel, the work of discharging the irrigation channel from the irrigation channel can be performed easily and quickly.

[0019]

1 to 3 show a bucket (3) according to the present invention.
0) is attached to the tip of a working machine having the same structure as the above-mentioned backhoe, and (15) in the figure is shown.
Is a second arm of the work machine, and (19) is a hydraulic cylinder arranged along the second arm (15).

The bucket (30) shown in FIG. 1 includes first and second bucket bodies (31) and (32) which are arranged to face each other.
A link mechanism (33) for opening and closing the first and second bucket bodies (31) and (32).

The first and second bucket bodies (31)
(32) is a rectangular board (35) to which the link mechanism (33) is attached, a bottom plate (36) extending downward from a long side on the outer side of the board (35), and a board (36). 35) and a triangular side plate (37) fixed to both sides of the bottom plate (36).

On each substrate (35), a pair of support plates (38) (38) is fixed in parallel.

Then, the first and second bucket bodies (3
1) The first and second buckets are formed by superimposing the inner ends of the support plates (38) and (38) of (32) and penetrating the connecting pin (40) between the superposed portions. The main bodies (31) and (32) are opened and closed around the connecting pin (40).

The link mechanism (33) has one end rotatably supported at the tip of the second arm (15) via the first pivot (41), and the other end with the tip of the rod of the hydraulic cylinder (19). The connected first link (42) has one end connected to the rod end of the hydraulic cylinder (19), and the other end connected to the second link (42).
A second link (44) connected via a second pivot (43) to a support plate (38) of the bucket body (32);
One end is connected to the second arm (1) via the first pivot (41).
5) is rotatably supported at the tip, and the other end is connected to the support plate (38) of the first bucket body (31) and the third pivot (4).
5) and a third link (46) connected through the third link (46).

The links (42), (44), (4)
6), as shown in FIG. 1, are arranged in pairs so as to sandwich the second arm (15).

The third pivot (45) is connected to the support plate (3).
8) and the third link (46) are detachable.

If the hydraulic cylinder (19) is shortened, the bottom plates (36) and (36) of the first and second bucket bodies (31) and (32) are in a parallel state as shown in FIGS. And the bucket (30) is in an open state.

When the hydraulic cylinder (19) is extended, the first bucket body (31) is connected to the third link (4).
6), the second arm (15) is fixed with respect to the second arm (15).
By rotating the second link (42) (44) and the second link (44) in the downward direction, only the second bucket body (32) is connected to the connecting pin (4).
The bucket (30) is turned clockwise in FIG. 3 around the point (0), and the bucket (30) is closed as shown in FIG.

A bucket (30) having the above structure is mounted on the tip of a second arm (15) of a working machine having a structure similar to that of the backhoe (10) shown in FIG. 1) In the case where the tractor (1) is connected and supported at the rear portion and the tractor (1) is used for discharging the soil, the tractor (1) is arranged along the water channel (A) to perform the discharging operation. As shown in FIG.
When the bucket (30) is rotated by 0 degrees and the bucket (30) is positioned above the irrigation channel (A), the long sides of the first and second bucket bodies (31) and (32) of the bucket (30) are connected to the irrigation channel ( A)
Can be located along.

Therefore, if the bucket (30) is closed after the bucket (30) enters the irrigation channel (A) in this state, the wall surface of the irrigation channel (A) is not damaged.
Mud and sand in the irrigation channel (A) can be reliably scooped.

In the case of the irrigation canal (A) with the surroundings being soil, the bottom plates (36) and (36) of the first and second bucket bodies (31) and (32) are used after the discharging operation is completed. The side wall of the irrigation channel (A) can be solidified.

In the above embodiment, the second bucket (3) of the first and second bucket bodies (31) and (32) is used.
Although the example in which only 2) rotates and the bucket (30) closes has been described, the first and second buckets (31) and (3)
If the user wants to open and close the bucket (30) by rotating both of them in 2), the operation may be performed as shown in FIGS.

That is, the third pivot (45) is once pulled out from the support plate (38) and the third link (46) of the first bucket body (31), and the third link (46) is pulled upward. The bracket (50) provided by rotating the end of the third link (46) near the tip of the second arm (15).
To prevent the third link (46) from operating.

Next, a connecting link (51) having a flat plate shape is prepared, and one end of the connecting link (51) is connected to a support plate of the first bucket body (31) via a third pivot (45). (38), and connect the other end of the connection link (51) to the first
The link (42) is connected via a fourth pivot (52).

Link mechanism (33) of bucket (30)
When the hydraulic cylinder (19) is shortened as described above, the first and second
Bucket body (31) (32) bottom plate (36) (3
6) are opposed in a parallel state, and the bucket (30) is in an open state.

When the hydraulic cylinder (19) is extended, the first link (42) rotates clockwise in FIG.
A second link (44) connected to the first link (42)
And the connecting link (51) is pressed downward, so that the first and second bucket bodies (31) connected to the ends of the two.
(32) are also pressed downward, respectively.

For this reason, the first and second bucket bodies (31) and (32) are moved around the connecting pin (40).
Each of them rotates downward, and becomes a closed state as shown in FIG.

In the above embodiment, the case where the bottom plate (36) of the first and second bucket bodies (31) and (32) is flat is described. As shown in FIG.
6) A rectangular opening (55) is formed, and a mesh-like mesh plate (56) is detachably attached to the opening (55). At this time, the water contained in the earth and sand can be discharged smoothly.

The roughness of the mesh may be determined according to the particle size of the sediment deposited in the water channel (A) for performing the earth discharging operation.

[0040]

As described above, if the tractor is disposed along the irrigation canal and the tractor is disposed along the irrigation canal, the first buckle of the bucket is used.
And the long side of the second bucket body can be located along the irrigation channel.

Therefore, if the bucket is closed in this state after the bucket enters the irrigation canal, mud and sand in the irrigation canal can be reliably scooped without damaging the wall surface of the irrigation canal.

In the case of an irrigation canal in which the surroundings are soil,
After the discharging operation is completed, the side walls of the irrigation channel can be solidified using the bottom plates of the first and second bucket bodies.

Further, the bucket according to the present invention can be connected to the working machine only by pivotally connecting the first and third links to the tip of the arm of the working machine. Since it can be performed by one cylinder, the bucket according to the present invention can be directly attached to the tip of the working machine used as the backhoe, and there is no need to add any special modification to the working machine itself. If the bucket for the backhoe and the bucket according to the present invention are replaced as necessary, one working machine can be used as the working machine for the backhoe and the irrigation canal excavation work.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bucket according to the present invention.

FIG. 2 is a side view showing an open state of the bucket according to the present invention.

FIG. 3 is a side view showing the closed state of the bucket according to the present invention.

FIG. 4 rearranges the link mechanism of the bucket according to the present invention,
The side view which shows the state which made the bucket open.

FIG. 5 rearranges the link mechanism of the bucket according to the present invention,
The side view which shows the state which closed the bucket.

FIG. 6 is a schematic diagram showing a use state of the bucket according to the present invention.

FIG. 7 is a schematic diagram showing a discharging operation by a backhoe.

FIG. 8 is a schematic diagram showing a discharging operation by a backhoe.

FIG. 9 is a side view showing a state where the backhoe is connected to the tractor.

[Explanation of symbols]

 Reference Signs List 1 tractor 15 second arm 19 hydraulic cylinder 30 bucket 31 first bucket body 32 second bucket body 33 link mechanism 35 substrate 36 bottom plate 37 side plate 40 connecting pin 41 first pivot 42 first link 43 second Axis 44 Second link 45 Third axis 46 Third link 51 Connecting link 52 Fourth axis

Claims (1)

(57) [Scope of request for utility model registration] 1. A first and a second bucket which are arranged opposite to each other and which are provided at the tip of an arm of a working machine which is connected and supported to a work vehicle, and which open and close with a connecting pin passing through an overlapping portion between both buckets as a center of rotation. A main body, and a link mechanism for opening and closing the first and second bucket main bodies by one cylinder, wherein each of the bucket main bodies is connected to a link-shaped link substrate by a rectangular substrate; A bottom plate extending downward from the long side of the one side, and a triangular side plate fixed to both ends of the substrate and the bottom plate, the link mechanism having one end pivotally attached to the arm tip of the working machine, A first link having an end connected to the cylinder;
A second link having one end connected to the cylinder and the other end connected to the substrate of the second bucket body; one end pivotally connected to the tip of the arm; and the other end being detachable from the second bucket body. A third link freely connected to the second bucket body, and a connection link connected to an intermediate portion of the first link at one end, if necessary. And work machine buckets.