JPS585736Y2 - Transverse feed device for excavated soil in trencher - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a device in a trencher machine that transports the excavated soil that has been raked up to the ground level through the excavation claws in both directions of the machine body. The purpose of this is to enable reliable cross-feeding.

Generally, a trencher 1, that is, an endless chain, is stretched in an oval shape, and digging claws are attached to the outer periphery of the endless chain 7 at appropriate intervals, and the endless chain is installed at a constant angle of inclination. By circulating the endless chain in this state, the excavating claw excavates the slope in the process of being sent from the bottom toward the ground surface, and the excavated soil is transported up to the ground surface. In a trencher that excavates a trench by raking up a trench, a screw is installed at the upper end of the chest to transport the excavated soil that has been raked up to the ground surface in the manner described above in both directions of the machine body. An auger is generally provided.

However, since the conventional screw auger has the same diameter and has a continuous spiral,
The excavated soil is fed while following almost the same rotation locus.

For example, when transporting excavated soil made of clay, the screw auger is rotated idly to feed the excavated soil while drawing the same rotation trajectory as described above. This results in the inconvenience of not being able to carry out a smooth transfer.

The present invention is an attempt to improve the above-mentioned inconveniences of the conventional technology. A plurality of feed pawls formed in a substantially elliptical shape so that the length to the outer periphery gradually increases from the front to the rear are attached at different angles and fixed on the rotating shaft at appropriate intervals. The gist of this is that it is constructed in such a way that reliable transfer can be carried out depending on the situation.

Hereinafter, specific embodiments of the present invention will be described with reference to the illustrative drawings.

1 is a drive body, 2 is a trencher body connected to the rear of the body 1 via a drive shaft 3 (described later) so as to be able to rise and fall and adjust its angle; 4 is its main beam; and 5 is a main beam connected to the drive shaft 3. The installed driving wheel, 6 is an idler wheel installed on the lower end of the main beam 4, and 7 is an endless checker 7.8 stretched between the drive wheel 5 and the idler wheel 6. 9 are digging claws attached at appropriate intervals along the outer periphery of the endless chain 7, and 9 are rotary claws placed horizontally on both sides of the machine near the ground surface during the upward stroke of the endless chain 77. Although the rotating shaft 9 is not shown, it is configured to rotate in conjunction with the endless chino 7 via appropriate wheels.

10 has its outer periphery gently curved in the l direction so as to wrap around the axial center just like a shell piece, and the length of the outer periphery from the coaxial center gradually increases from the front to the rear. The plurality of feed claws 10 are mounted on the rotary shaft 9 at appropriate intervals at different angles of approximately 1800 degrees. It is made by letting

The present invention has the above-mentioned configuration, and the excavated soil scraped up to the ground surface through the excavating claws 8 as described above is collected by the machine body 1.
0 As a device for transferring in both directions, the outer circumferential edge is gently curved in one direction so as to wrap around the shaft center like a piece of a seashell on the rotating shaft 9, and the outer periphery is conveyed from the shaft center. The feed pawls 10 are formed so as to gradually become longer from the front to the rear along the rotation direction, and are attached at appropriate intervals with the angles appropriately different. By configuring the excavated soil to be fed horizontally through the rotation of the feed claws 10, each feed claw 10 has a different rotation locus. As a result, the feed claws 10 do not rotate on the same trajectory as the adjacent feed claws 10 in the front and back, as in conventional screw augers, so that the lateral feed can be performed accurately. This is possible.

In other words, by forming the feed claws 10 so that the length of the outer circumference from the shaft center gradually increases from the front to the rear, each of the feed claws 10... It is possible to scoop out the excavated soil from the indicated part toward the depth, and then sequentially feed the excavated soil diagonally backward while inverting it, and it is especially useful for traversing viscous excavated soil. The effect is remarkable.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the main parts, FIG. 3 is a side view of the same, and FIG. 4 is a side view of a conventional screw auger. 1... Drive body, 2... Trencher body, 3...
・Drive shaft, 4... Main beam, 5... Drive wheel, 6
...Idle wheel, 7...Endless chain, 8...Drilling claw,
9... Rotating shaft, 10... Feed claw.

Claims (1)

[Scope of utility model registration request] A rotary shaft that interlocks with the endless chain is provided in a position close to the ground surface in the upward stroke of the endless chain equipped with the digging claw, and extends across the width of the machine, and the outer peripheral edge of the rotary shaft is attached to one side. A plurality of feed pawls are gently curved and formed so that the length from the shaft center to the outer periphery becomes gradually longer from the front to the rear along the rotation direction, and the feed pawls are installed at different angles. , a lateral feed device for excavated soil in a trencher, which is fixed at appropriate intervals.