JPS6021932Y2 - excavator - Google Patents

Description

[Detailed explanation of the invention] To dig up root vegetables that have grown deep underground, such as Yamato potatoes and udon, the blade of the digging machine should be inserted at least 50 cm into the ground, and the blade should be placed above the blade. It is necessary to release the swollen crops from the soil without damaging the crops being dug.

For this purpose, the support rod is fixed downward at the required position of the rear girder, which is fixed horizontally to the rear end of the main girder, and the front end of the shaft rod, which has a blade plate fixed to the upper surface of the front end, is lowered from the rear end. A shaft through which is arranged inwardly with reference to the position of the crop to be dug, and in which the shaft rod is fitted and supported so that the blade plate can swing only up and down about the center line of the shaft rod. The pipe is fixed to the lower end of the support rod, and the operating rod whose base is fixed to the rear end of the shaft rod is connected to the crankshaft at the rear end of the rotating shaft, which is rotatably supported on the machine frame such as the main girder, by a connecting rod. In the excavator that did
Arrange the earth-splitting blade along the course of the shaft-through tube slightly outside the shaft-through tube that supports the shaft rod, and fix the base of the excavator to the blade plate or the front part of the shaft rod. This relates to an excavator that is characterized by:

To explain the drawings, A shows the entire excavator equipped with a tractor (not shown), and 1 is equipped with various devices for attaching the excavator A to the tractor, and is installed horizontally. The base of the mounting plate 2 is fixed to each end of the front spar 1, and the lower link pin 3 is planted in the mounting plate 2 so as to protrude laterally. In the mast with holes drilled, B indicates a three-point hook type coupling device that protrudes rearward at the rear end of the tractor, and the pin holes of the lower link pin 3 and the mast 4 are connected to the coupling device. Attach to B and connect.

Reference numeral 5 denotes a main spar whose front part is fixed to the front spar 1 using a hollow tube, and 6 is a rear spar fixed to the rear end of the main spar 5 in the lateral direction.

7 is a fixture that is fixed so that it can move freely only in the left and right direction, and 8
is a support rod whose upper part is fixed to a fixture 7, and a shaft pipe 9 is fixed to the lower end of the support rod 8, the front end of which is lower than the rear end and directed inward with respect to the crop to be excavated.

Reference numeral 10 denotes an axle which is rotatably supported through the axle tube 9. Therefore, like the axle tube 9, the axle 10 is lowered from the front end side or the rear end, and is lowered with reference to the crop to be excavated. placed at an angle facing inward.

Reference numeral 11 denotes a blade plate fixed to the upper surface of the front end of the shaft rod 10 for tilling the soil.

12 is a cylindrical rod fixed to the rear edge of the blade plate 11 and taken out toward the rear.

Reference numeral 13 is arranged slightly outwardly of the shaft rod 10 and the shaft tube 9 in which the shaft rod 10 is fitted and supported, along the path through which the shaft rod 10 and the shaft tube 9 should pass. It is fixed to the rear edge of the plate 11 or the front part of the shaft rod 10.

Reference numeral 14 denotes an operating rod whose base is fixed to the rear end of the shaft rod 10 that projects rearward from the rear end of the shaft-passing tube 9 and projects upward.

Reference numeral 15 denotes a rotating shaft made of a hollow tube that extends vertically through the hollow hole of the main girder 5 and is rotatably supported. A crankshaft 16 eccentric to the center line of the rotating shaft 15 is attached to the rear end of the shaft 15.

Reference numeral 17 denotes a connecting rod in which a metal 18 loosely fitted to the crankshaft 16 is built into one end so that the angle can be changed in each direction. Since the metal 19 is built in so that the angle can be freely changed in each direction, the crankshaft 16 and the operating rod 14 are linked, and the rotation of the rotating shaft 15 is transmitted to the operating rod 14, so that the operating rod 14 can be rotated from side to side. Make it.

The rear end of a universal joint 20 is externally fitted and fixed to the front end of the rotating shaft 15 protruding from the front end of the main girder 5.

The front end of the universal joint 20 is externally fitted and fixed onto a power take-off shaft (not shown) which is rotatably protruded rearward from the rear end of the tractor.

Reference numeral 21 denotes a ruler wheel which is fixed to both sides of the front girder so as to be adjustable up and down, and is used to keep the penetration depth of the blade plate 11 into the soil constant and stable.

Arrows C and C' in FIG. 3 indicate directions in which the shaft rod 10 alternately swings left and right.

The excavator A configured as described above has a tractor coupling device B.
When the front end of the universal joint 20 is externally fitted and fixed to the power take-off shaft of the tractor, and the rear end of the universal joint 20 is externally fitted and fixed to the front end of the rotating shaft 15, the rotation of the power take-off shaft is controlled by the rotary shaft. 15, the crankshaft 16 provided at the rear end of the rotating shaft 15 moves in a circular motion. Since the freely fitted metals 18 and 19 are loosely fitted to the crankshaft 16 and the upper end of the operating rod 14, the operating rod 14 swings from side to side. 1
Since the shaft rod 10 swings in the left and right direction inside the shaft tube 9, the shaft rod 10
Both ends of the blade plate 11 and the cylindrical rod 12, which are fixed horizontally to the upper surface of the front end of the blade plate 11, swing up and down, and the blade plate 11 penetrates into the soil while breaking the soil. To swell and soften the soil, in order to insert the blade plate 11 into the soil to a depth of 50 cm or more below the ground surface, the shaft rod 10 and the shaft passage tube 9 that passes through and supports the shaft rod 10 must be lengthened. There must be.

However, if the shaft rod 1o and the shaft passage pipe 9 are made longer, they will come into contact with the unbroken side wall of the soil (uncultivated area) and will hinder the penetration into the soil. The earth-splitting blade 13 is arranged slightly outwardly of the pipe 9 along the course of the shaft-passing pipe 9, and the base of the earth-splitting blade 13 is fixed to the front part of the blade plate 11 or the shaft rod 10. Since the soil-splitting blade 13 swings up and down together with the blade plate 1N, the soil is continuously crushed and the shaft-through tube 9 advances behind it.
Since the shaft-through tube 9 can advance through a place where the soil is expanded and soft and there is little uplifting resistance, the shaft-through tube 9 can be made as long as necessary.

Therefore, even if the blade plate 11 goes deeper than 50 cm into the ground, it can be towed by a small horsepower tractor, and it also swells the soil to the surface and separates the crops from the soil. You can easily pull out crops such as
It can also be used to dig up udon, seedlings, etc.

Furthermore, since the soil can be expanded and softened to the ground surface by at least the width of the blade plate 11, it can also be used as a deep cultivation device.

Note that if the cylindrical rod 12 is provided toward the rear from the rear end of the blade plate 11 as shown in the drawing, the effect of crushing the soil can be further enhanced.

In this case, as described above, the support rod 8 is fixed downwardly at a required position of the rear girder 6 which is fixed to the rear end of the main girder 5 in a horizontal direction, and the blade plate 11 is fixed to the upper surface of the front end of the shaft. The front end of the rod 10 is lowered than the rear end, and the shaft rod 10 is placed on both ends of the blade plate 11 or toward the inside with the position of the crop to be dug as a reference.
Adjust the shaft rod 1 so that it can only swing up and down about the center line of
An operating rod 14 in which a shaft-through tube 9, which is fitted and supported by the shaft rod 8, is fixed to the lower end of the support rod 8, and a base is fixed to the rear end of the shaft rod 10.
In an excavation device in which a crankshaft 16 at the rear end of a rotating shaft 15 rotatably supported on a machine frame such as a main girder 5 is connected by a connecting rod 17, a shaft through pipe supporting the shaft rod 10 is used. A soil-splitting blade 13 is arranged along the path of the connecting rod 9 slightly outward from the connecting rod 9, and the base of the excavator 13 is connected to the blade plate or the shaft rod 10.
Since the blade plate is fixed to the front part of the rod, the blade moves forward while swinging up and down around the center line of the shaft rod, so the soil is continuously crushed by the blade plate, so the blade can be moved with relatively little traction force. It is possible to move the board deep into the soil, but in order to make the blade board go deep into the soil, if the shaft rod and shaft threading tube are lengthened, the rear end of the shaft threading pipe and shaft rod will protrude outward, so it will not be possible to move the blade board deep into the soil. Since it touches the cultivated land side, it prevents the blade plate from penetrating into the soil, but by vertically swinging the soil-splitting blade, which is placed slightly outside the shaft-through pipe and along the course of the shaft-through pipe, the shaft Since the soil near the path of the through pipe is crushed and floated before passing through, the long shaft through pipe and the rear end of the shaft rod can easily sink into the soil, so the blade plate can easily reach the required depth. It can penetrate into the ground and loosen the soil above the blade plate while releasing the crop from the soil, making it easy to pull out crops from very deep places. Since it softens the soil, it can also be used as a deep cultivation device.

[Brief explanation of the drawing]

Fig. 1 is a side view of an excavator equipped with the proposed device, Fig. 2 is a top view, Fig. 3 is a front view showing the main parts, and Fig. 4 is a rear view showing the main parts. FIG. 5 is a rear view showing a section of a part of the transmission mechanism for vertically moving the blade plate and the earth-splitting blade, and FIG. 6 is a side view of the same. 9... shaft through tube, 10... shaft rod, 11
...Blade plate, 13...Dogwari blade, 14.
...Operating rod, 15... Rotating shaft, 16...
...Crankshaft, 17...Connection rod.

Claims (1)

[Scope of utility model registration request] A support rod 8 is fixed downwardly at a predetermined position of the rear girder 6 which is fixed laterally to the rear end of the main girder 5, and the front end of the shaft rod 10 with the blade plate 11 fixed to the upper surface of the front end is the rear end. The shaft rod 10 is lowered and placed inward with reference to the position of the crop to be excavated, and the shaft rod 10 is swingable only in the vertical direction around both ends of the blade plate 11 or the center line of the shaft rod 10. The shaft through tube 9, which is fitted inside and supported, is fixed to the lower end of the support rod 8. The operating rod 14 whose base is fixed to the rear end of the waist shaft rod 10, and the rotating shaft rotatably supported on the machine frame such as the main girder 5. Crankshaft 16 at the rear end of shaft 15
In an excavation device in which the shaft rods 10 are connected by a connecting rod 17, the earth-splitting blade 13 is arranged slightly outside the shaft-through tube 9 in which the shaft rod 10 is fitted and supported, along the course of the shaft-through tube 9. An excavator characterized in that the base of the earth-splitting blade 13 is fixed to the front part of the blade plate 11 or the shaft rod 10.