JPS5944005B2 - digging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an excavator, and the present invention relates to an excavator that has a excavator blade and a soil sieve body connected to the rear of the excavator blade. It is designed to move forward while imparting movement to dig up and harvest the excavated material.

An embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a machine frame installed on both sides in the longitudinal direction, and at the front end of this machine frame 1, there is a connecting frame part 1a for the towing tractor 2.
At the same time, a digging device 5 is provided at the rear end of the machine frame 1 via a crank 3 and an operating frame 4.

The crank 3 is horizontally suspended between the rear ends of the frame portions 1b on both sides of the machine frame 1, and a midway portion of the operating frame 4 is rotatably supported on an eccentric shaft portion 3a of the crank 3. The operating frame 4 extends in an inclined manner toward the upper front and lower rear, and a turnbuckle 6a is interposed in the middle between the upper front part of the operating frame 4 and the front part of the machine frame 1. The supporting rod 6 is hung, and the front and rear ends of the supporting rod 6 are rotatably supported on the machine frame 1 and the operating frame 4 via shafts 7a and 7b, respectively.

A holding frame portion 4a extending downward on both sides is provided at the lower rear portion of the operating frame 4, and the digging device 5 is attached to this holding frame portion 4a.

This digging device 5 is provided with a digging blade 9 between the front lower parts of both side frames 8 arranged oppositely on both sides, and a soil sieve body located behind the digging blade 9 between the above-mentioned both side frames 8. It is formed by horizontally suspending a plurality of horizontal bars 10 with a constant interval maintained between them, and there is a section located above the group of the horizontal bars 10 and on the inside of the rear part of the both side frames 8. Guide frame 1
1 is provided, and a grounding body 1 is provided at the lower part of the both side frames 8.
2 is installed.

In the figure, 2 is a towing tractor, 13 is a vehicle body thereof, 14 is an axle, and 15 is a wheel.

In such a configuration, it is connected to the rear part of the vehicle body 13 of the tow tractor 2 via the connection frame portion 1a of the machine frame 1, and
When power is transmitted from the power take-off shaft 2a of the towing tractor 2 to the center shaft portion 3b of the crank 3 via the transmission medium 16, the eccentric shaft portion 3a of the crank 3 moves from the center shaft portion 3b as shown in FIG. The supporting rod 6 swings back and forth using the shaft 7a as a fulcrum, and the digging device 5 follows an elliptical trajectory whose long axis extends from the lower front to the upper rear. By moving along the field in this state, the digging blade 9 vibrates in the front-back direction, digs up the material to be dug, and moves it onto the group of 10 horizontal rods located in the front part. At the same time, the 10 groups of horizontal rods vibrate in the front-rear direction and move in an elliptical motion backward and upward, sending the material to be excavated backward and upward. At this time, shaking is applied while shaking off the soil. Only the material to be excavated as the harvested material is transferred and sent toward the rear of the rear end of the 10 groups of horizontal rods.

According to the present invention, excavation work is performed while giving back-and-forth vibration and elliptical motion to the excavation device, which has a soil sieving body connected to the excavation blade, so that the excavation blade vibrates in the back-and-forth direction. The cutting force is small because the soil progresses while moving, and the soil sieving body moves the material to be excavated backwards while vibrating and moving in an elliptical manner, so that the soil sieving is performed well. An excavator capable of carrying out the excavation work will be provided.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a side view of the excavator, FIG. 2 is a plan view thereof, and FIG. 3 is a diagram showing its operating state. 1...Machine frame, 3...Crank, 3a.
... Eccentric shaft; Part, 4... Actuation frame, 5.
...Drilling device, 6...Supporting rod, 9...
...Dig blade, 10...Multiple horizontal rods as a soil sieve body.

Claims (1)

[Claims] 1. A machine frame, a crank horizontally mounted rotatably on the rear of the machine frame, and a middle part of the crank rotatably supported on the eccentric shaft, which is tilted upwardly and downwardly at the front. an operating frame extending from the front of the operating frame, a support rod extending from the front of the operating frame to the front of the machine frame so as to be swingable in the front and rear directions, and a digging device provided at the rear lower part of the operating frame. An excavating machine, characterized in that the excavating device is equipped with a digging blade and a soil sieving body connected to the rear of the digging blade.