JP3088189U - Seedling drilling machine - Google Patents

Abstract

(57) [Summary] [Problem] When saplings in vegetation have passed for 3 to 4 years, it is necessary to dig for shipping or disposal as commodities. The digging of such seedlings and the removal of soil from the roots of discarded seedlings can be efficiently performed by one machine. SOLUTION: A digging blade 10 having a vibration mechanism for digging up a seedling group under vegetation, a conveyor 20 for transporting the digged seedlings, and crushing the soil attached to the roots of the seedlings to separate them from the seedlings. And a connecting device 50 connected to the tractor. The upper roller 31 of the pair of upper and lower rotating rollers is retracted when not used.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a seedling excavator for digging a group of seedlings in a vegetation.

[0002]

[Prior art]

 Tree seedlings for tree planting, seedlings for seedlings, and other tree seedlings are vegetated in large quantities in seedling fields and are shipped in 3 to 4 years. The 3rd to 4th year seedlings are discarded if there is no demand at that time. When the seedlings are discarded, it is necessary to collect the soil that has been painstakingly created for growing. Conventionally, when excavating and discarding such seedlings in vegetation, a flat blade is passed horizontally through the ground of the seedling field, the roots of the seedlings are cut off, and the seedlings are lifted. Had to be removed from the soil, and the soil attached to the roots was swept down to collect seedlings. This was both laborious and inefficient. In order to improve this inefficient work, a device for sandwiching the seedlings is attached to the arm of a construction machine that drives the arm (for example, backhoe, trade name Yumbo, etc.). The work to remove the soil from the roots of the seedlings was also devised. However, this work was also inefficient and forced workers to work excessively.

[0003]

[Problems to be solved by the invention]

 Therefore, in order to solve the above problems, the present inventor has developed a device that can efficiently perform the work of collecting the seedlings and removing the soil. In this case, the equipment was designed to efficiently handle the seedlings with soil to be shipped as commodities, as well as the disposal of the seedlings from which soil should be separated. The present invention makes it possible to excavate both seedlings for both commodities and wastes from digging to root excavation efficiently with one machine, and can be operated by one worker. It aims to provide a seedling excavator that is towed by a tractor.

[0004]

[Means for Solving the Problems] The present invention provides a digging blade for uprooting a group of vegetative seedlings, a conveyor for transporting the digged seedlings, and crushing the soil attached to the roots of the seedlings. A seedling excavator comprising: a plurality of rotating rollers for separating from a seedling; and a connecting device for connecting to a tractor.

[0005] The seedling excavator is directly connected to the rear of a tractor, and includes a cutting blade for seedlings, a rod chain conveyor for transporting seedlings, and a rotating roller for breaking the soil at the roots of the seedlings and separating them from the seedlings. Is configured as In addition, by providing a vibration mechanism such as a link mechanism for vibrating the excavating blade back and forth, high-efficiency excavation can be performed. In addition, a conveyor consisting of a rod chain that carries excavated seedlings backward was provided. A rotating roller was provided behind the rod chain conveyor to break the seedling soil and separate it from the seedlings. The rotating roller is composed of a plurality of bar rollers, has a pair of upper and lower bar rollers, and has a configuration in which the upper roller can be retracted to an inoperative position. The bar roller is formed in a cylindrical shape by attaching a round steel (bar) with a constant pitch on the circumference of a plurality of circular steel plates attached to a shaft. A pair of upper and lower rotating rollers compresses the seedlings between the rollers, hits the seedlings with a roller bar, and breaks the soil attached to the roots of the seedlings to separate them from the seedlings. The separated soil falls downward between the bars of the rotating roller, and the seedlings are sent backward and fall on the field. It is easy for a person to collect and discard the seedlings that have fallen on the field.

Drive sources such as a digging blade, a rod chain conveyor, and a plurality of rotating rollers are transmitted from a PTO (power transmission mechanism) of a tractor.

[0007]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a seedling digger of an embodiment, and FIG. 2 is a plan view thereof. The seedling digging machine 1 of the present invention includes a digging blade 10, a conveyor 20 for transporting digged sapling, and a plurality of rotating rollers 30 for crushing the soil attached to the root of the sapling and separating the soil from the sapling. And a connecting device 50 connected to the tractor as a main element. As shown in FIG. 2, these are driven by driving power supplied from sprockets 61 and 64 attached to an output shaft 55 of a gear box 54 for transmitting the PTO power of the tractor.

[0008] The excavating blade 10 is a flat plate-shaped straight blade for excavating a seedling group under vegetation. When digging a seedling, lower the three-point link 51 of the tractor, insert the digging blade 10 into the soil, and move the tractor forward while moving the digging blade 10 through the soil at a certain depth below the root of the seedling. Let the seedlings dig. The excavating blade 10 is attached to a lower end of an arm 11, and the arm 11 is supported so as to be able to swing around a pin 12 at an intermediate portion thereof. The pin 13 at the upper end of the arm 11 is connected to a link 14, and the link 14 is driven by a crank shaft 15. The link 14 is a mechanism for changing the rotational movement of the crankshaft 15 into a linear movement. By this crank motion, vibrations reciprocating in the direction in which the tool moves forward and backward are applied to the excavating blade 10. With the provision of such a vibration mechanism, the excavating blade 10 can achieve a highly efficient excavating operation. The sprocket 63 attached to the excavating blade drive crankshaft 15 receives power from the prime mover side sprocket 61 via a chain 62.

The conveyor 20 sends the soil and the seedlings excavated and scooped out by the excavating blade 10 to the rear and to the rotating roller 30. The transport conveyor 20 is a rod chain conveyor in which rods (round bars) 26 are attached to left and right link chains at a constant pitch. Fine soil falls down from between the rods. The prime mover side sprocket 64 drives a sprocket 67 of the rod chain conveyor 20 via a chain 65. The headgear 21 is wound around a chain of a rod chain conveyor. The rod chain conveyor 20 includes intermediate receiving rollers 22 and 23 and a tail roller 24 of the rod chain conveyor.

[0010] The rotating roller 30 is a soil drop roller that crushes and removes the soil attached to the root portion of the seedlings sent from the rod chain conveyor. The sent lump is also crushed and dropped. As shown in FIG. 3, the rotating rollers 31, 32 and 33 are formed by attaching bars (round steel) 35 at equal pitches around the circumference of a disk 34 fixed to a shaft 36 by bar rollers.

The rotating roller 30 includes a pair of upper and lower bar rollers 31 and 32, and behind the rotating roller 30 is a single rotating roller 33 for discharging seedlings from the machine. The pair of upper and lower rotating rollers 31, 32 sandwich the seedling, hit the seedling, separate the soil attached to the root of the seedling, and drop it downward. The seedlings from which the soil has been separated are discharged by the delivery rotary roller 33 and fall to the ground.

The lower rotating roller 32 receives power from a tractor PTO via a chain. The sprocket 72 for driving the rotating roller 32 receives power from the shaft of the sprocket 67 via a chain. The upper and lower rotating rollers 31 and 32 are in contact with the tires 41 and 42 attached to both ends of each shaft, and the lower rotating roller 32 serves as a driving source to drive the upper rotating roller 31 via the tires 41 and 42. Rotate. The upper rotating roller 31 is attached to an arm 37 that rotates about a pin 38, and is urged by a spring 39 so as to be pressed against the lower rotating roller 32. The sprocket 73 of the rotating roller 32 is driven by receiving power from the sprocket 72 with a chain.

When digging a seedling to be shipped as a product, the arm 37 of the upper rotating roller 31 of the pair of upper and lower rotating rollers 31 and 32 is removed upward by removing the spring 39, and the upper rotating roller 31 is removed. Retract to the inoperative position and secure to the frame with bolts. As a result, the seedlings are simply sent backward and discharged onto the ground without being crushed and removed from the roots without being caught by the rotating rollers.

The tires 41 and 42 are attached to both ends of the shaft 36 of the pair of upper and lower rotating rollers 31 and 32, and transmit the rotation of the lower rotating roller 32 to the upper rotating roller 31 by friction. The tires 41 and 42 are flexible and have a characteristic of slipping against overload. The tires 41 and 42 absorb, together with the spring 39, the impact of an excessive load when the seedling is sandwiched between the rotating rollers 31 and 32, and smoothly. It contributes to easy driving.

The seedling excavator of the present invention has traveling wheels 80 and is connected to a tractor for towing. The connectors 51 and 52 are connecting devices for connecting the three-point links of the tractor.

The side plate 53 mounts a bearing of a rotating part and forms a frame for firmly assembling the entire apparatus.

[0017]

[Effect of the invention]

 According to the present invention, by pulling the integrated seedling digging machine with a tractor and performing the work, one worker can dig the seedling and remove the root of the seedling. The dropped seedlings are allowed to fall onto the field, so they can simply be collected and discarded. The soil on the roots of the seedlings was returned to the field, eliminating waste. It also made it easier to dig seedlings for sale. The efficiency of these operations is several to several tens of times higher than before, and excessive labor and the number of workers are no longer required.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment of FIG.

FIG. 3 is a detailed view of a rotating roller according to the embodiment. REFERENCE SIGNS LIST 1 seedling excavator 10 excavating blade 11 arm 12, 13 pin 14 link 15 crankshaft 20 rod chain conveyor 21 headgear 22, 23 receiving roller 24 tail roller 26 rod 30 rotating roller 31, 31a upper rotating roller 32 lower side Roller 33 Rotary roller 34 Disk 35 Bar 36 Shaft 37 Arm 38 Pin 39 Spring 41, 42 Tire 50 Connecting device 51, 52 Connector 53 Side plate 54 Gear box 55 Output shaft 61, 63, 64, 67, 71, 72 , 73 Sprocket 62, 65 Chain 80 Running wheel

Claims (3)

[Utility model registration claims] 1. A digging blade for uprooting a group of vegetative seedlings, a conveyor for transporting digged seedlings, and a plurality of rotating rollers for crushing soil attached to the roots of the seedlings and separating the soil from the seedlings. And a connecting device for connecting to a tractor. 2. The seedling excavator according to claim 1, wherein the excavating blade has a vibration mechanism. 3. The seedling excavator according to claim 1, wherein the rotating roller includes a pair of upper and lower bar rollers, and the upper roller can be retracted to an inoperative position.