JPH04200317A - Sugarcane reaper - Google Patents

Abstract

PURPOSE:To enable efficient and safe reaping without damaging even lodged sugarcanes and easy traction and driving with a small-sized tractor by providing a frame with a reaping blade projecting in the transverse direction from the frame at right angles to the forward direction and reciprocating. CONSTITUTION:A reaper is connected to the back of a tractor, pulled and driven. In reaping operation, a reaping blade (assembly) 20 is projected at right angles to the forward direction of the tractor to a length corresponding to nearly half of the ridge width and reciprocated through a reciprocating mechanism by power from an engine of the tractor. Thereby, the reaping blade 20 is advanced forward while being reciprocated and vibrated. Since sugarcanes are advanced by repeating engagement and disengagement with a circular arc part of the blade edge formed into the shape of a circular arc wave. As a result, the sugarcanes can readily and surely be cut.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sugar cane harvester, and particularly to a sugar cane harvester that is pulled by a small tractor to harvest sugar cane.

Conventional technology Conventionally, as a device for automatically harvesting sugar cane (hereinafter simply referred to as millet), a specialized medium to large-sized sugar cane harvesting machine was used to automatically remove the top of the cane, reap, defoliate, bundle, or cut the cane. Although these medium- and large-sized machines can be applied to large-scale vineyards, they have high equipment costs and are inefficient in small fields, increasing the production cost of sugar cane. In heavy clay soils, there was also the problem of hardening of the soil. Therefore, in place of complicated harvesters, there is a need for small-sized reapers that can be easily used even in small-scale vineyards, and various types of reapers have been proposed. However, a machine that is easy to use and can cut sugar cane efficiently has not yet appeared, and the current situation is that most machines rely on heavy manual labor. This is the cause of the aging of industry.

The conventionally proposed millet harvester has a lifting chain that guides the fallen millet to a part of the cutter while raising it up.
A stand-alone device with a dedicated power unit, consisting of a rotary cutter that cuts the stock and a cross-feeding chain that transports the cut millet horizontally and releases it onto the ridge, or a device that is attached to a tractor is known. It is being All of these conventional millet cutters use rotary blades.

(Problems to be Solved by the Invention) In conventional sugar cane harvesters, all of the cutting blades are rotating blades, so they must be rotated at high speed in order to reap well.
In vineyards where there are many pebbles, stones are not only dangerous as they may crack, but there is also the problem that the blade is often damaged. In addition, in the case of a rotary blade, the cutting range is relatively narrow, and when the base of the stock is relatively wide, such as when cutting a stock, there are problems such as leaving uncut parts. In addition, in order to improve the growth of millet after cutting, it is desirable to cut millet slightly below the ground surface, but with conventional rotary blades, it is only possible to cut the millet at a position that protrudes above the ground surface. There was a problem that it was inconvenient for stocking and also lowered the yield rate.

The present invention aims to eliminate the above-mentioned drawbacks of the conventional sugar cane harvester, and is capable of efficiently and safely harvesting even fallen cane without causing damage, and the device is simple and inexpensive to manufacture. The purpose of the present invention is to provide a millet reaper that is less likely to be damaged in its reaper blades, has low running costs, and can be easily pulled and driven by a conventional small-sized tractor.

(Means for Solving the Problems) The sugar cane reaper of the present invention solves the above problems, and is a cane reaper that is attached to the rear part of a tractor and driven for traction, and the sugar cane reaper is a cane reaper that is attached to the rear part of a tractor and driven by traction, and the sugar cane reaper is attached to the rear part of a tractor and is driven in a traction manner. The problem was solved by adopting a technical means characterized by having a reaping blade that reciprocates at an actual height, and that reciprocates the reaping blade using power from a tractor via a reciprocating mechanism. The cutting blade can be effectively cut by using a straight blade having an arc wave-shaped cutting edge.

(Function) The sugar cane cutter of the present invention is connected to the rear part of a tractor and driven for traction, and during the cutting operation, the cutting blade protrudes from the side at right angles to the traveling direction of the tractor by approximately the width of the ridge.
It is driven back and forth by a reciprocating mechanism powered by the tractor's engine. Therefore, the reaping blade moves forward while vibrating reciprocatingly, and as the pimples in the arcuate portion of the cutting edge, which is formed in an arcuate wave shape, repeatedly engage and disengage, the combined force of the forces in the direction of movement and in parallel acts to easily remove the pimples. It is possible to cut quickly and reliably, and the reciprocating movement of the straight blade naturally avoids pebbles and the like, preventing stones from flying around. and,
It is possible to cut the millet by the length of the blade at the same time, and even if the cutting width is wide, it can be harvested reliably. Also,
The tip of the blade is slightly curved, so
Even on the slope on the opposite side of the ridge, the blade can be properly harvested from the base of the plant without lifting up.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Reference numeral 1 in the figure shows the sugar cane harvester according to this embodiment, and a frame 2 has a lower part 3 formed of a round pipe on one side, and an auxiliary wheel 4 on the other side, which is connected to a tractor. This allows it to be towed.

Reference numeral 5 designates a drive shaft supported by the frame, whose base end is connected to the power shaft of the tractor by a coupling, and whose other end is belt-transmitted to the crankshaft 9 via a V-belt pulley 7.8. A crank wheel 10 is fixed to the other end of the crankshaft 9, and one end of a crank rod 12 is fitted into a crank pin 11 fixed at an eccentric position of the crank wheel.

Reference numeral 15 designates a slide arm for reciprocating the reaping blade in a direction perpendicular to the traveling direction of the tractor, and is formed into a prismatic shape, and the other end of the crank rod 12 is connected to the upper side of the slide arm via a bracket 13. The rotation of the crankshaft 9 causes the crankshaft to reciprocate from side to side with a stroke twice the eccentricity of the crankshaft. Reference numerals 16 and 16 denote a pair of guide rollers provided on the frame to sandwich and guide the slide arm from above and below, and 17 and 17 denote a pair of guide rollers that also sandwich and guide the slide arm from both sides.

Reference numeral 20 denotes a reaping blade assembly attached to the protruding end of the slide arm 15, which is attached to the protruding end of the slide arm 15 via a bracket 21 to adjust the height at which the reaping blade slightly digs into the ground during reaping work. A cutter holder 23 is fixed to the lower end of the spacer rod 22 whose length is set so as to maintain the length of the spacer rod 22. The blade holder is shown in Figures 5 and 6.
As shown in the figure, a plurality of mounting holes 24 for fixing the reaping blade 25 are formed, and the tip is bent slightly downward, thereby preventing the tip of the blade from rising above the ground surface of the ridge. The millet on the opposite side of the ridge can also be cut from the root.

As shown in Fig. 9, the reaping blade 25 is divided into a plurality of short pieces so that if the cutting edge becomes damaged, only that portion of the reaping blade can be replaced. It has an arcuate wave-shaped cutting edge 26 consisting of an arcuate surface (approximately 50 mm in diameter in this embodiment) that can be fitted, and the base has mounting holes 27 at the same pitch as the mounting holes 24 formed in the blade holder 23. It is formed. 28 shown in Figures 7 and 8
is a knife holder in which mounting holes 29 are formed at the same pitch as the knife holder, and like the knife holder, the tip is bent so that the knife can be held on the back side of the knife holder and fixed with bolts. It looks like this.

The reaping blade assembly assembled from the above components protrudes laterally from the frame during millet reaping work, as shown in Figures 1 and 2, but at other times it is used to prevent danger. The upper end flange 30 of the spacer rod 22 and the bracket 21 are detachably fixed with bolts so that the spacer rod 22 can be folded.

31 and 32 are a main connection piece and a sub connection piece for connecting the millet cutter to the tractor, and are connected to the main connection link 35 and the sub connection link 36 of the tractor, and are connected to the main connection link 35 and the sub connection link 36 of the tractor, and are connected to the main connection link 35 and the sub connection link 36 of the tractor, and are connected to the main connection link 35 and the sub connection link 36 of the tractor. The hydraulic cylinders on the tractor are activated to enable these links to support the millet cutter in a raised position.

Note that a divider 41 is provided on one side of the tractor 40 for raising fallen millet on the path of the tractor and guiding it to the rear reaping machine.

As shown in FIG. 4, the divider 41 includes an inclined pipe 43 that has a spatula 42 at its tip and is inclined rearwardly, and a plurality of guides whose base ends are connected to the inclined pipe. It is composed of pipes 44 and 45.

Millet can be harvested in the following manner using the millet harvesting device configured as described above.

The millet cutter is connected to the tractor 40 as described above through the main connection piece 31 and the sub connection piece 32, and the power shaft 37 of the tractor and the drive shaft 5 of the millet cutter are connected with the universal joint 38, and harvesting is carried out. Drive the tractor along the mowed furrow, straddling the mowed furrow so that the millet furrow is always on the outside of the direction of travel. If there is a fallen millet in the direction of travel of the tractor, the spatula 42 protruding from the lower front of the tractor 1 as the tractor moves forward enters the lower part of the fallen millet, guides the fallen millet along the inclined pipe 43, and removes the crack. cause Therefore, even if there is fallen millet, it can be reliably harvested without crushing it with the tractor.

The drive shaft 5 of the millet cutter 1 is rotated by the power from the tractor's engine, and the rotational force is transmitted to the crankshaft 9 by belt transmission, and the crankshaft rotates at a predetermined rotation ratio to rotate the crank wheel IO. . As a result, the slide arm 15 reciprocates via the crank bin 11 and crank rod 12, which are provided protrudingly at an eccentric position of the crank wheel 10, and the reaping blade assembly 20 provided at the tip of the slide arm 15 moves against the ridge. It reciprocates almost at right angles. In this embodiment, the stroke of the slide arm 15 is set to approximately 150M, and since the reaping blade 25 protrudes laterally by approximately the length of the ridge width, the reaping blade extends over approximately the entire width of the ridge for approximately 150 seconds. It reciprocates with a short stroke.

Therefore, the reaping blade moves forward while vibrating reciprocatingly, and the arc portion of the cutting edge formed in an arcuate wave shape repeatedly engages and disengages, and the combined force of the force in the direction of movement and parallel to it cuts the blackhead easily and reliably. can do. By reciprocating in the linear direction, the blade can appropriately avoid pebbles and the like, and even in vineyards with many pebbles, pebbles will not be thrown away and there will be less damage to the cutting edge.

The height of the reaping blade is such that when the device travels through a ditch, the cutting edge slightly sinks into the ground of the ridge where millet grows and cuts the millet at its root slightly inside from the ground surface. It is set. One side of the reaper is supported by a pipe-shaped sled 3, and the reaping blade side is supported by auxiliary wheels, so if the height of the groove in which it runs is different, it can tilt freely using the sled as a fulcrum. The cutting blade is designed to be able to always cut away the millet from the root, even when there are rough or uneven surfaces. In addition, since the tip of the cutting blade is slightly bent downward in a curved shape, it is possible to properly cut the sloped surface on the opposite side of the ridge. As a result, all the millet can be harvested uniformly, and can be harvested in the best condition for post-harvesting.

The sugar cane harvester of the present invention can efficiently harvest sugar cane as described above, thereby eliminating the labor involved in conventional manual harvesting work, and since the cane is completely cut, it is also possible to collect it in a drawer. With conventional manual work, one person could produce 1 ton/day, including defoliation, but with this machine, the production time can be increased to 2 ton/day or more, and when only cutting millet, 40-45 tons/day is now possible.

(Effects) Since the sugar cane cutter of the present invention is configured as described above, it exhibits the following special effects.

(b) Since the reaping blade reciprocates almost perpendicularly to the direction of movement to cut away the dirt, there is less chance of stones flying off or chipping of the cutting edge during the cutting process, unlike with conventional rotary blades, and the growth spreads over the entire width of the ridge. Even dead millet can be harvested uniformly at the base, improving the harvest rate of millet, and can be harvested in the best condition for the next cropping.

(b) The arcuate wave shape of the cutting edge allows it to engage well with the millet, making it possible to cut very easily and efficiently, and making it easy to collect the sugar cane without leaving any uncut material.

(c) Since the cutting is done at the rear of the tractor, the cut millet does not get in the way of the tractor running. Further, since the cut millet is left as it is, the millet does not break and can be harvested efficiently.

(d) It has a simple configuration, can be manufactured at low cost, and can be easily installed on conventional small tractors.

[Brief explanation of the drawing]

The drawings show an embodiment of the millet harvester of the present invention,
Figure 1 is a rear view of the same, Figure 2 is a sectional view taken along line AA in Figure 1, Figure 3 is a sectional view taken along line BB in Figure 1, Figure 4 is a side view of the vehicle being towed by a tractor, and Figure 5 is a sectional view taken along line BB in Figure 1. FIG. 8 is a side view thereof, and FIG. 9 is a plan view of the reaping blade. 1: Millet reaper 2: Frame 3: Sled 4: Auxiliary wheel 5: Drive shaft 9: Crankshaft 12: Crank rod I5 Nisride arm 20: Reaping blade assembly
25: Reaping blade 40: Tractor 41: Divider

Claims (1)

[Scope of Claims] 1) A sugar cane cutter towed and driven by a tractor, which has a cutting blade that protrudes from a frame in a transverse direction substantially perpendicular to the direction of travel and reciprocates, and the cutting blade is moved from the tractor. A sugar cane reaper characterized in that the sugar cane reaper is reciprocated by the power of the reciprocating mechanism. 2) The sugar cane reaper according to claim 1, wherein the reaping blade has an arcuate wave-shaped cutting edge.