KR20070025409A - Potato harvester - Google Patents

Abstract

A sweet potato harvesting machinery is provided to increase the product quality of the sweet potato in despite of mechanical harvesting by preventing the surface of the sweet potato from being scratched or stripped, and to improve the working efficiency by controlling the digging and harvesting depth of a digging and harvesting blade more precisely. The sweet potato harvesting machinery comprises: a machinery body(100); a traction member(110), arranged in an upper front of the machinery body(100), and connected to a tractor; a power transmission shaft(120), arranged also in the upper front of the machinery body(100), and supplied with the power from the tractor; a digging and harvesting blade(130), attached to a lower front of the machinery body(100); a chain conveyor(140), arranged in a rear of the machinery body(100) so as to feed the potato digged and harvested by the digging and harvesting blade(130); and a ski plate(150), mounted in a lower rear of the machinery body(100); wherein the digging and harvesting blade(130) is composed of two blade members(130a,130b) which are arranged in right and left sides respectively so as to dig and harvest the sweet potato in two ridges at the same time.

Description

Sweet potato harvester {Potato harvester}

1 is a perspective view of a sweet potato harvester according to the present invention,

2 is a side view of a sweet potato harvester according to the present invention,

3 is a plan view of a sweet potato harvester according to the present invention,

4 is a side cross-sectional view of a bulb harvester according to the present invention;

Figure 5 is an operating state of the vibration means in Figure 4,

6 is a front view showing a state of harvesting sweet potatoes using a sweet potato harvester according to the present invention,

Figure 7 is a side cross-sectional view of the same state as in Figure 6,

FIG. 8 is a plan view of the same state as in FIG. 6.

* Explanation of symbols for main parts of the drawings

100: harvester body 110: towing unit

120: power transmission shaft 122: drive shaft

130,130a, 130b: excavation blade 131: bottom blade

132: inner blade 133: outer blade

134: guide for introducing the stem 135: angle adjustment hole

140: chain conveyor 142: deflection roller

144: middle roller 150: ski blade

160: vibration means 162: shaft

164: vibrating foot 166: lever

170: link mechanism 180: auxiliary ski blade

190: cover

The present invention relates to a sweet potato harvester, and in detail in the state of cutting sweet potato stems (potatoes) planted with sweet potatoes and arranged in the furrows, only a pair of excavation blades spaced to the left and right to spread the soil of the dumplings, The soil lump is moved up and down by vibrating means so that it can flow smoothly into the chain conveyor without jamming. It is mechanically prevented from being damaged on the surface of sweet potatoes by dragging during feeding failure or transfer due to the inflow of stem during harvesting. In spite of harvesting, the sweetness of sweet potatoes is increased, and since the stems and leaves are not mixed with the harvested sweet potatoes, the collection workability of sweet potatoes is also improved.

When harvesting sweet potatoes by hand using tools such as hoe, it is possible to minimize damage such as peeling of sweet potatoes, but there is a problem that work speed is too slow and workability is deteriorated. When harvesting using a general excavator, the stems and leaves of the sweet potato vine (stem) and leaves cut in the furrow are spread by the blade and flow into the excavator. As the entangled with the sweet potato is dragged, the sweet potato is not transported smoothly, and the surface of the sweet potato is scratched or peeled due to the friction that is received during the transfer. When the high price as well as the price was not able to get a problem.

In addition, sweet potatoes dropped through the digging machine to the field were mixed with stems and leaves, so even when collecting sweet potatoes harvested after excavation, they had to be picked up while cutting these stems and leaves. There was a disadvantage that it is significantly lowered.

On the other hand, the existing excavator has a structure in which the soil excavated by the excavation blade flows directly into the chain conveyor side, so that the excavated soil is stagnated at the rear of the excavation blade, and the chain conveyor is longer than necessary. There is a problem that the surface of the sweet potato is damaged in the process of being disposed along the chain conveyor.

The present invention has been made in order to solve the above-mentioned conventional problems, the object of the present invention is that, despite the mechanical harvest by first harvesting so that no scratches such as scratches or peeling on the surface of sweet potatoes during harvesting of sweet potatoes The present invention provides an improved type of sweet potato harvester that can improve the marketability of sweet potatoes, and secondly, the present invention facilitates pre-processing of sweet potato vines (stems) during harvesting of sweet potatoes, and the sweet potato stems into the excavator. In order to prevent the inflow of sweet potatoes, the sweet potato stems on the tortillas on which the sweet potatoes are planted are cut and neatly arranged to the furrow side. Improved form of sweet potato harvesting to eliminate work difficulties Third, the present invention is to improve the harvestability by allowing more precise control of the excavation depth of the excavation blade to excavate sweet potatoes, as well as to improve the workability by not taking much load on the harvester improved form To provide a sweet potato harvester.

In order to achieve the above object, the present invention is provided with a towing portion connected to the tractor and a power transmission shaft for receiving power from the tractor, and the excavation blade is attached to the front lower portion of the harvester body, A chain conveyor for transporting the crops harvested through the excavation blades is installed, and a ski blade is attached to the rear lower portion of the harvester body, and the excavation blades are left and right to excavate two two dams planted with sweet potatoes, respectively. It is disposed to be spaced apart to the right, between the excavation blade and the chain conveyor is provided with a vibration means for injecting the soil excavated by the excavation blade up and down to flow into the chain conveyor side without congestion, the vibration means is the power Oscillating up and down by a link mechanism connected to a drive shaft driven by a transmission shaft, and The lower portion of the chwinal is to provide a potato harvester auxiliary ski edge is attached to to keep the depth of gulchwi gulchwi day reliably.

In the present invention, each of the excavation blades disposed on the left and right sides of the harvester main body is installed to have a width corresponding to the interval of the pits on which the sweet potatoes are planted, so that only the soil of the pits on which the sweet potatoes are planted is excavated. It consists of inner and outer blades bent at right angles with respect to the inner blade, the inner blade is formed as an inclined surface so that the width of the outer blade toward the rear to minimize the inflow into the excavation blade stems located in the furrow between the two ridges The inner and outer edges of the upper and lower blades are sometimes attached with a guide for introducing a stem for guiding the sweet potato stem to be smoothly introduced without a sweet potato stem when the stem comes up toward the excavation blade.

In the present invention, the lower portion of the excavation blade to support the load of the excavation blade to support the height of the excavation blade to proceed in a state maintaining a stable depth when the excavation is attached to the height adjustment is possible according to the state planted sweet potato It is possible to improve the harvesting depth and workability by more precisely controlling the depth of excavation of the excavation blade.

In the sweet potato harvester according to the present invention by installing a vibrating means between the chain conveyor shaking the soil excavated by the excavation blade up and down, firstly swells the soil mass small, and the raised soil is not stagnant and smoothly to the chain conveyor side. In particular, by minimizing the conveying length of the chain conveyor by installing a vibration means between the excavation blade and the chain conveyor, peeling of the sweet potato due to the impact and friction received when being transported through the chain conveyor, etc. By minimizing damage as much as possible, it increases the merchandise and makes it possible to get the price in the market.

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

1 to 4 illustrate the sweet potato harvester according to the present invention, the sweet potato harvester of the present invention receives power from the tractor and the tractor 110 connected to the tractor not shown in the front upper portion of the main body 100 The power transmission shaft 120 is provided, and the front lower portion of the main body 100 is attached to the excavation blade 130, the rear of the harvester main body 100 to transfer the excavated crop through the excavation blade 130 For the chain conveyor 140 is installed, the ski blade 150 is attached to the rear lower portion of the harvester main body 100, the excavation blade 130 is individually to excavate the two toads each planted sweet potato The two excavation blades 130a and 130b constituted are disposed to be spaced apart from the left and right sides, and the soil excavated by the excavation blade 130 is shaken up and down between the excavation blade 130 and the chain conveyor 140. Soil spreading does not stagnate Vibration means (160) for separating the soil and sweet potatoes to the primary and smoothly flowing into the conveyor side is installed, the vibration means 160 is connected to the drive shaft 122 driven by the power transmission shaft (120) Auxiliary ski blades 180 are attached to each other so as to swing up and down by the link mechanism 170 and to keep the depth of excavation of the excavation blade 130 stable at the lower portion of the excavation blade 130.

In the present invention, the excavation blade (130a, 130b) is installed in a width corresponding to the gap between the planted sweet potato field, both sides of the excavation blade (130a, 130b) in a state spaced at a predetermined interval between the furrows of the field By arranging the sweet potato stems cut in advance in the furrows, the sweet potato stems can be prevented from coming up inside the harvester when the sweet potatoes are pulled out.

The left and right excavation blades 130a and 130b are arranged in a symmetrical shape as can be seen in the plan view of FIG. 3, which is bent at right angles to the bottom blade 131 and the bottom blade 131. The outer blades 132 and 133, but the inner blade 132 is formed as an inclined surface so that the width with the outer blade 133 toward the rear side, such as stems located in the furrow between both sides of the excavation blade 130a, 130b) to minimize the inflow, the upper and the inner blades (132, 133) in the upper portion of the sweet potato stem comes up to the excavation blade (130a, 130b) stems for smooth inflow without taking the vine An inlet guide 134 is attached.

The excavation blade 130 has a plurality of angle adjusting holes 135 are formed in the rear upper portion of the inner and outer blades 132 and 133, the coupling hole 101 of the angle adjusting hole 135 and the main body 100. By adjusting the engaging position of the can be adjusted to any angle.

In addition, the auxiliary ski blade 180 for supporting the load of the excavation blade 130 in the lower portion of the excavation blade 130 to allow the excavation blade 130 to proceed in a state of maintaining a stable depth during excavation The auxiliary ski blade 180 is also attached to the plurality of height adjustment holes 131b perforated in the fixing bracket 131a attached to the bottom surface of the bottom blade 131 of the excavation blade 130 so that the height can be adjusted. Is, it is to be able to adjust the engagement position of the auxiliary ski blade (180).

The auxiliary ski blade 180 can increase the harvestability by adjusting the depth of excavation of the excavation blade 130 according to the state that the sweet potato is planted in the sweet potato field, and also to proceed to a more stable state It will help to improve the workability when harvesting sweet potatoes.

On the other hand, in the sweet potato harvester according to the present invention by installing the vibration means 160 between the excavation blade 130 and the chain conveyor 140, the soil mass excavated by the excavation blade 130 is not stagnant toward the chain conveyor 140 side By smoothly inflowing and crushing a large soil mass primarily, the soil and sweet potato are separated and then transported to the rear through the chain conveyor 140 so that the remaining soil falls.

In the present invention, by installing the vibrating means 160 between the excavation blade 130 and the chain conveyor 140, it is possible to reduce the transfer length of the chain conveyor 140, thereby through the chain conveyor 140 Due to the impact and friction received during transportation, the surface of the sweet potato has the effect of minimizing damage such as scratching or peeling.

The chain conveyor 140 allows the driven shaft 124 connected with the belt 123 to the drive shaft 122 driven by the power transmission shaft 120 to rotate in a clockwise direction in the cross-sectional side view of FIG. 4. While the sweet potato excavated through the upper portion of the chain conveyor 140 is conveyed to the rear.

In the chain conveyor 140, reference numeral 142 denotes a sag prevention roller for preventing the loosening chain conveyor from sagging excessively, and reference numeral 144 denotes an intermediate for preventing the upper (tension) chain conveyor from sagging downward. It is a roller.

On the other hand, the link mechanism 170 for driving the vibrating means 160 is a swing bar 171 attached to one end eccentrically rotated on the power transmission shaft 120, attached to the other end of the swing bar 171 The first crank 172, the first link 173 operating up and down by the first crank 172, the second crank 174 connected to the lower end of the first link 173, the second crank ( The upper end is connected to the other end of 174 and the lower end includes a second link 175 connected to the lever 166 attached to the shaft 162 of the vibrating means 160.

In FIG. 5, an operating state of the vibration means 160 is illustrated, which is caused by the rotation of the driving shaft 122 so that the oscillation bar 171 rotates the first crank 172, and the first crank 172 is rotated. The first link 173 is operated up and down so that the second crank 174 and the second link 175 receive these powers to rotate the shaft 162 of the vibrating means 160. As the vibrating foot 164 connected to the vibrating up and down is to allow the dirt to flow smoothly into the chain conveyor 140 side without stagnating.

In addition, in the present invention, the cover 190 is attached to the front lower left and right sides of the harvester main body 100 to prevent the link mechanism 170 from being contaminated by soil or other foreign matters or a malfunction thereof.

The process of harvesting sweet potatoes using the sweet potato harvester of the present invention configured as described above will be described.

6 is a front view illustrating a state of harvesting sweet potatoes using a sweet potato harvester according to the present invention, and FIGS. 7 and 8 are side cross-sectional views and plan views of the same state.

6 to 8, the sweet potato harvester of the present invention is towed by the tractor not shown to excavate the sweet potato planted in the field, the excavation blade 130a, 130b installed on the front left, right of the harvester main body 100 ) The excavation work should be carried out with the field adjusted to match the head of the field.

On the other hand, prior to the excavation work by cutting the sweet potato stem (Q) exposed over the toads (S) neatly arranged to the furrow (U) side so that the stem comes into the harvester does not cause a normal excavation work.

When the excavator is advanced by towing of the tractor, the excavation blades 130a and 130b on both sides will only excavate the soil of the sweet potato (P) planted with the pike (S), so that it is unnecessarily low to the excavator, and the excavator in front of the excavator is of course. Since the wheel of the tractor towing traverses the sweet potato stem Q, which is neatly arranged in the furrow U, the sweet potato stem can be minimized when the sweet potato stem is introduced by the excavator. Being able to increase the workability can not increase the work speed because the work does not occur due to the stem.

On the other hand, the sweet potato stem (Q) arranged in the furrow U between the excavation blade (130a, 130b) is guided further inward by the inclined inner blade 132 of the excavation blade (130a, 130b), the inside When the stem is sometimes introduced into the excavation blade (130a, 130b) by the guide 134 attached to the upper portion of the blade 132, the incoming stem is not caught, so that it is lifted up and lifted up so that it flows smoothly. The sweet potato can be prevented from being excessively dragged on the chain conveyor.

The soil mass excavated by the excavation blade 130 flows up and down by the vibration means 160 and is transported backward through the chain conveyor 140 to be separated from the soil. In the present invention, the oscillation foot 164 swings up and down. The large soil lump is primarily broken by the vibrating means 160 to separate the soil lump and the sweet potato, and congestion does not occur. After that, the soil lump and the sweet potato are transported on the chain conveyor 140, thereby Soil broken finely by vibration falls down through the gap of the chain conveyor 140 and only the remaining sweet potato is transported to the rear and falls.

In the present invention, since the vibration means is installed between the excavation blade and the chain conveyor to prevent the phenomenon of congestion of soil, the vibration means firstly separates the sweet potato from the soil, and then the chain conveyor having a relatively short length. It is possible to minimize the occurrence of scratches such as scratching or peeling the surface of the sweet potato in the process of transporting to the rear.

On the other hand, in the present invention, since the sweet potato stem or leaf is not introduced into the excavator, since the harvested sweet potato is easily identified with the naked eye on the field, it is also possible to quickly and more conveniently collect them.

As described above, the present invention prevents inflow of sweet potato stems into the excavator in advance despite mechanical harvesting, thereby minimizing transport defects and damage of sweet potato surfaces caused by the inflow of sweet potato stems, thereby increasing marketability. You can get a high price at the harvesting time, and the harvesting day will be excavated precisely and stably only at the depth where the sweet potato is planted, so there is little load on the harvester body. Just by arranging toward the furrow can eliminate the work disturbance or trouble caused by the sweet potato stem has a useful effect such as to improve the excavation and collection work.

Claims (6)

The front of the harvester body 100 is provided with a towing unit 110 connected to the tractor and a power transmission shaft 120 that receives power from the tractor, and the excavation blade 130 is attached to the front lower portion of the body 100. In the rear of the main body 100, a chain conveyor 140 for transporting crops excavated through the excavation blade 130 is installed, and the ski blade 150 is attached to the rear lower portion of the harvester main body 100. In that, The excavation blade 130 is a sweet potato harvester, characterized in that the two excavation blades (130a, 130b) configured to be separately excavated for each of the two heads planted with sweet potatoes are spaced apart left and right. The method according to claim 1, The excavation blade (130a, 130b) is composed of the bottom blade 131 and the inner and outer blades (132,133) bent at a right angle with respect to the bottom blade 131, the inner blade 132 is the outer edge toward the rear ( 133) sweet potato harvester, characterized in that formed in the inclined surface so as to widen. The method according to claim 2, When the sweet potato stem comes up to the excavation blade (130a, 130b) to the upper portion of the inner, outer blade (132,133) is attached to the guide guide 134 for stem inlet guide for lifting up so as not to catch the sweet potato stem smoothly Sweet potato harvester characterized in that. The method according to claim 1. Vibration means 160 is installed between the excavation blade 130 and the chain conveyor 140, the vibration means 160 is a link mechanism connected to the drive shaft 122 driven by the power transmission shaft 120 ( Sweet potato harvester, characterized in that the oscillating movement up and down by 170). The method according to claim 1, Sweet potato harvester, characterized in that the auxiliary ski blade 180 is attached to the lower portion of the excavation blade 130 is adjustable in height. The method according to claim 4, The link mechanism 170 is a swing bar 171 attached to one end eccentrically rotated on the power transmission shaft 120, a first crank 172 attached to the other end of the swing bar 171, the first crank A first link 173 operating up and down by 172, a second crank 174 connected to the bottom of the first link 173, and an upper end connected to the other end of the second crank 174. Sweet potato harvester characterized in that it comprises a second link (175) connected to the lever (166) attached to the shaft (162) of the vibration means (160).

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