JPS6016673Y2 - pebble bucket - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for separating gravel and earth by attaching a basket-shaped packet with a wire mesh around the outer periphery to a hydraulic excavator.

When a field is cleared to become new arable land, stones and gravel in the tilled soil will inhibit the growth of crops and also damage machinery during tilling work.

For this purpose, methods have conventionally been used to remove stones and gravel from the soil using input or mechanical force.

If done manually, the method involves picking up each stone and gravel one by one, which is extremely inefficient and impossible on large areas.

When using mechanical power, the earth and sand are excavated and transported to a sorting machine.
After the stones and gravel have been sieved out, the soil must be returned to its original position, which is slow, requires a lot of labor, and is inefficient.

Another method is to remove the bottom of the packet from a hydraulic excavator, cover it with a wire mesh, and vibrate it with a vibrator to separate the gravel.
In other words, since the area of the wire mesh is small, it is inefficient and inefficient.

The present invention was devised in view of the above points, and its purpose is to provide a device that can efficiently and quickly remove stones and gravel from the soil. The packet itself is constructed in the shape of a basket with a wire mesh stretched around its outer periphery, and can be rotated by a hydraulic motor.

Work efficiency is good because the area to be sieved becomes larger.

This will be explained in detail with reference to the drawings.

1 is the main body of the gravel packet, and the front part has a horizontal frame 2 with a mouth-shaped cross section.
has a rectangular rear plate 3 at the rear, which is connected by four vertical girders 4, and a wire mesh 5 for separating stones and gravel is installed around the outer circumference of the vertical girder 4.
is posted.

At the front of the horizontal frame 2, claws 6 for excavating earth and sand are provided to protrude forward.

Reference numeral 7 designates a slewing ring bearing having internal teeth A on the inner ring, the left end surface of the inner ring A is connected to the rear plate 3 with screws 8, and the right end surface of the outer ring is connected to the side plate 11 of the bracket 10 with screws 9. ing.

A hydraulic motor 12 is also mounted on the side plate 11, and its drive pinion 13 meshes with the internal teeth of the swing wheel bearing 7.

Note that 14 is an arm of the hydraulic excavator, 15 is a hydraulic cylinder, 16 is a lever, and 17 is a rod.

The present invention is constructed as described above, but when actually operating, the hydraulic cylinder 15 is activated to direct the gravel packet main body 1 toward the front (to the right) and pull it toward the front so that the claw 6 plunges into the excavated earth and sand. scoop up the soil.

Hydraulic cylinder 15 is used to prevent the scooped earth and sand from spilling out.
is activated to lift the packet body 1 while directing the claw side of the gravel packet body 1, that is, the opening, upward.

The hydraulic motor 12 is operated to rotate the inner ring of the swing ring bearing 7 and the gravel packet main body 1 bound thereto by the drive pinion 13.

The earth and sand scooped into the main body 1 fall off the wire mesh 5, and only stones and gravel remain inside the wire mesh 5 of the main body 1.

The sieved gravel is moved to a desired location by the arm 14,
By operating the hydraulic cylinder 15 to direct the tip of the gravel packet main body 1 downward, the gravel inside can be easily discharged.

Although the cross-sectional shape of the gravel packet 1 has been described as being rectangular as shown in FIG. 2, it does not necessarily have to be this, and may be circular or other shapes.

As described above, the present invention involves attaching a bracket to the tip of the arm of a hydraulic excavator so that it can be rotated by a hydraulic cylinder, attaching a cage-shaped packet with a wire mesh to the bracket via a slewing ring bearing, and using a hydraulic motor to rotate the bracket. Since it rotates, the scooped earth and sand can be quickly sorted, resulting in very high work efficiency.

In addition, since the present invention only requires manufacturing the gravel packet main body, hydraulic motor, bracket, etc., it is not so expensive, and the work is easy because only the driving operation is required.

[Brief explanation of the drawing]

Figure 1 is a front view of an embodiment of the present invention, and Figure 2 is A of Figure 1.
-A sectional view. 1... Stone gravel packet body, 5... Wire mesh, 6... Claw, 10... Bracket, 1
2...Hydraulic motor, 14...Arm,
15... Hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] A slewing bearing 7 is attached to the rear of the gravel packet main body 1, which has an excavating claw 6 attached to its front end and a wire mesh 5 for sorting stones and gravel stretched around its outer periphery, and the other end of the slewing bearing 7 is attached to a bracket 10. A gravel packet in which a bracket 10 is provided with a hydraulic motor 12 for rotating the gravel packet body 1, one end is rotatably attached to an arm 14, and the bracket 10 is attached to a hydraulic cylinder 15 via a rod 17.