JPH0510046Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a working machine for use in sloping fields, and more particularly relates to a working machine for use in sloping fields such as orchards, such as tangerine orchards, which is equipped with a crawler unit and the like.

[Prior art and its problems]

In order to increase fruit yields in orchards and obtain delicious fruits, it is necessary to improve and reform the soil, and it is necessary to apply large amounts of organic fertilizer to the fields and supply large amounts of air into the soil. is preferable, and various machines have been invented and provided in the past. However, many mandarin orange orchards are cultivated on hilly areas or slopes in mountainous areas, and although the need for soil improvement in such orchards is well recognized, it is difficult to do the work manually. The process is difficult and almost impossible, and the reality is that the process is simply spreading organic fertilizer on the surface. However, it is not possible to revitalize the trees, and as a result, the per-cut yield decreases year by year and the quality deteriorates, which necessitates soil improvement, which has led to the provision of portable boring machines. This portable drilling machine was a drill driven by the output of a small engine, and only the work of drilling holes in the soil was powered, relieving the worker of heavy labor. However, moving a heavy drilling machine across a large orchard on a slope is more labor intensive than drilling holes manually. By the way, drilling holes around the tree is not done in the same place every year, but the holes are dug all around the tree every four years to supply air to the roots and improve the soil. For example, if organic fertilizer is applied for the purpose of
It is necessary to drill 24,000 holes. In addition, transport work on sloping fields, along with the growth management work mentioned above, is quite hard work.
A monorail-type transport device has been developed for transportation work from the field to the base at the foot of the mountain, but sufficient equipment has not been developed for work within the field. As mentioned above, work machines using crawler mechanisms are often used on sloping fields with poor running conditions, but although they are relatively convenient for moving uphill and downhill, they are difficult to move on slopes when moving along contour lines. As a result, an uneven load was applied to only the wheels on the valley side and the crawler, making it difficult to obtain sufficient driving force, and when grass was growing, it was difficult to obtain driving force when moving uphill or downhill. . In addition, fields such as orchards not only have steep slopes, but many also employ grass cultivation, so the entire field is covered with cut grass stalks and vines. Therefore, when traveling in the field, it is necessary to take measures to prevent vines, grass stalks, etc. from becoming entangled with the rotating shaft of the traveling system, and to be able to remove them immediately if they become entangled. .

[Means to solve the problem]

Therefore, in order to solve the above-mentioned problems, this invention was developed to provide at least a drive auxiliary unit attached to the axle of the drive wheel such as a crawler unit in a movable work machine that is equipped with a crawler mechanism on the vehicle body equipped with a drive source. The driving auxiliary vehicle includes two wheels extending radially around a wheel body having a bearing portion as a center.
Each set has multiple sets of claws, one set of claws is long and the other is short, and the long claws are tilted outward in the width direction and the short claws are tilted inward in the width direction. It is characterized by a structure in which each claw grips the ground and prevents vines and grass stalks from getting entangled inside the drive auxiliary vehicle.

【Example】

Hereinafter, an embodiment in which this invention is applied to a hole digging machine used in sloping fields will be described. First, in the figure, reference numeral 10 indicates a pedestal, and this pedestal 10 has crawler units 11 as moving mechanisms on both sides, and this crawler unit 11 has drive wheels 12,
A crawler 14 is suspended between idlers 13, and the drive wheels 12 and the axle ends 12a, 13a of the idlers 13 are each shaped to protrude outward. These end axles 12a, 13a have flat surfaces 12
b, 13b are formed, and a bolt hits when tightening the drive auxiliary wheel 15. That is, the drive auxiliary wheel 15 has a boss 15b formed at the center of a plate-shaped wheel body 15a, into which the axle end portions 12a, 13a can be fitted. Further, claws 15 formed by bending a bar-shaped member into a U shape are fixed at equal intervals around the ring body 15a, and each of the claws 151 has four ends.
It is formed by a long claw 151A that is about 5 cm long and the other short claw 151B, and its tip has a flat part H that widens out along the plane in the axle direction. There is. The intervals between the rings 151 are equal as a whole, and the claws 151 are slightly twisted in the thickness direction of the ring 15a.
The long claw 151A on the side view of a is turned outward to the short claw 151B.
are arranged in two rows toward the inside. The boss 15b has a female threaded portion 15d into which a fastening bolt 16 is screwed in in the radial direction, and the end of the fastening bolt 16 can come into contact with the flat surfaces 12b and 13b of the axle end. The diameter of this drive auxiliary wheel 15 is larger than the crawler height dimension when the crawler unit 11 is used as a moving mechanism, and larger than the diameter when a drive grounding wheel is used, so that the claw 151 is sufficiently attached to the ground surface. It is designed to be able to exhibit stabbing driving force. In addition, when touching the ground, the long claw 151A is attached to the surface of the ground.
When it comes to scraping grass stems and other things that get tangled, it is designed to move toward the outside of the wheel. An engine 20 as a drive source is mounted on one end of the frame 10, and part of its output is input to the transmission of the drive source via a pulley 21 and a belt 22 to drive the drive wheels 12. are doing. Further, another part of the output of the engine 20 is input to an oil pump 24 mounted on the frame 10 via a belt 23 to drive the oil pump 24. On both sides of this oil pump 24, support plates 31, 31 that serve as support parts of a support frame 30 are provided.
It is pivoted by a. Frame rods 32, 33
are parallel to each other and form a parallelogram-shaped pantograph when viewed from the side, and the other ends of the frame rods 32 and 33 support an oil motor forming a drill unit to be described later. A cylinder unit 40 for rotationally driving the support frame 30 is attached at one end to the frame 10 by a pivot 41, and one end of a support rod 42 is located near the pivot end of the cylinder unit 40. It is pivotally mounted by a pivot 43. One end of a lever rod 44 is pivotally attached to the tip of the support rod 42,
A rod 40a of the cylinder unit 40 is pivotally attached to the intermediate portion of the lever rod 44. A support arm 45 is attached to the other end of the lever rod 44, and a connecting rod 46 extends from the supporting arm 45 toward the tips of the frame rods 32 and 33. The end of the connecting rod 46 is connected to the oil motor 51. connected. The drill unit 50 is pivotally attached to the support frame 30 so that the drill always follows the line of gravity. This drill unit 5
0 is a drill 53 on the output shaft 5a of the oil motor 51.
A punch 54 is attached to the tip of the drill 53 to facilitate the start of drilling. The oil motor 5
1 receives pressure oil from the oil pump 24 and can rotate in forward and reverse directions. At the other end of the pedestal 10 is a handle 62 with a grip 61 that the operator grasps when moving. Near this handle are a side clutch lever 63 as a steering mechanism, an accelerator lever 64, and a handle for operating the transmission. Lever 65, cylinder unit 4
0, a control section 60 including an operation section 66 of the drill unit 50 is provided. Next, a description will be given of a hole digging operation using the slope field working machine according to this invention. First, for movement, the output of the engine 20 drives the crawler unit 11 as a movement mechanism, and the agricultural field is moved on a slope. Even if the field is soft due to humidity and grass grows, the user can move freely along the uphill direction or along the contour line without worrying about falling. When the drill has been moved to a suitable position for digging a hole relative to the tree, the output of the oil pump 24 is supplied to the oil motor 51 to rotate the drill 53.
At the same time, when the pressure oil in the cylinder unit 40 is removed and the rod 40a is contracted by the added weight,
The drill 53 starts drilling into the soil in the field. When a hole of a desired depth is dug and the drill 53 is removed, a soil conditioner such as a compound fertilizer or organic fertilizer is put in and stirred using the rotation of the drill 53. When pulling out the drill 53, the rod 40a of the cylinder unit 40 is extended to release the lever 40.
By pushing up the lever 4, the end of the lever 44 raises the drill via the support arm 45, the connecting rod 46, and the support frame 30. Cylinder unit 4
The drill 53 can be raised with a stroke larger than the zero extension stroke. In the above explanation, the drill 53 is driven downward by removing the pressure oil from the cylinder unit 40 and using its own weight. You can also use exercise. In addition, in the example, the case of a digging machine was given, but of course it can be applied to a transport vehicle, a fertilizer application machine, etc. In addition to crawler type, it can also be applied to four-wheel drive type. Training wheels can be installed.

[Effect of the idea]

As is clear from the above explanation, the working machine for sloped fields of this invention has a drive wheel of a crawler unit,
Alternatively, in a four-wheel drive format, a drive auxiliary wheel with claws around the axle end of the grounding wheel can be attached and detached, and each drive auxiliary wheel has multiple pairs of long and short claws. Since it is assembled and fixed, the claws grip the field when moving, reliably preventing slips in the drive direction and lateral direction.Furthermore, it prevents entanglement of vines and grass stems, making it easier to work on sloping fields. It can contribute to mechanization.

[Brief explanation of drawings]

The attached drawings show an embodiment in which this invention is applied to a digging machine. Figure 1 is an overall slope view of the machine for use in sloping fields, Figure 2 is an enlarged front view of the part in Figure 1, and Figure 3 is an enlarged front view of the part in Figure 1. FIG. 10... Frame, 11... Crawler unit, 1
2... Drive wheel, 13... Idler wheel, 14... Crawler, 15... Drive auxiliary wheel, 15a... Wheel body, 15
b...Boss, 151...Claw, 151A...Long claw,
151B...Short claw, 15d...Female thread, 20...
... Engine, 21 ... Pulley, 22, 23 ... Belt, 24 ... Oil pump, 30 ... Support frame, 31 ... Support plate, 32 ... Frame rod, 4
0...Cylinder unit, 41, 43...Axis,
42... Support rod, 44... Lever rod, 45... Support arm, 46... Connection rod, 50... Drill unit, 51... Oil motor, 52... Output shaft, 5
3...Drill, 54...Punch, 60...Control unit, 61...Grip, 62...Handle, 63
...Side clutch lever, 64...Accelerator lever, 65...Operation lever.

Claims (1)

[Scope of utility model registration request] At least a drive auxiliary vehicle attached to the axle of a drive wheel such as a crawler unit is provided, and the drive auxiliary vehicle is provided with a plurality of sets of two pawls extending radially around a wheel body having a bearing part as the center, One set of claws in each set is long and the other short, and the long claws are tilted outward in the width direction and the short claws are tilted inward in the width direction, so that each set of claws grips the ground while driving in the field, and also allows the claws to grip the ground while traveling in the field. A working machine for sloping fields, characterized in that it is configured to prevent grass stalks from getting entangled inside the drive auxiliary vehicle.