JP2010268763A - Head reaping device of head-forming vegetable harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a head reaping device of a head-forming vegetable harvester capable of smoothly performing cutting of a stem and discharge to an intermediate conveyor to improve work efficiency by avoiding entanglement of outer leaves of the head-forming vegetable to be harvested. <P>SOLUTION: The head reaping device 3 of the head-forming vegetable harvester comprises a positioning and holding means 6 to hold a head A of the head-forming vegetable to a definite position during a moving process of a machine body and a cutting means 7 acting immediately under the held head A. The positioning and holding means 6 has a belt spring mechanism 27 having a pair of endless belt mechanisms 22 supporting endless belts 21 in a circulable manner and placed opposite to each other to enable introduction of the head A between the oppositely placed parts, and applying spring force to hold the introduced head A, and cutting action parts 41, 42 of the cutting means 7 are placed under the holding range of the head A with these two endless belt mechanisms 22 excluding a starting end and a rear end of the range. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a head part harvesting device of a head vegetable harvester that travels and harvests a head part of a head vegetable such as cabbage.

  2. Description of the Related Art A headed vegetable harvesting machine that harvests headed parts of headed vegetables such as cabbage, lettuce, Chinese cabbage while traveling is known. For example, the device described in Patent Document 1 includes a head part cutting device that can move up and down at the front part of a traveling part capable of traveling on a field, and cuts the head part of headed vegetables from the field by this head part cutting device, and then links the head part. It is comprised so that it may accommodate in the integrated vehicle of a rear connection via the relay conveyor and discharge | emission conveyor of the driving | running | working part side which operate | move.

  The head reaping device is composed of stationary holding means for holding the head part in a fixed position during the process of moving the airframe by a guide rod following the weed fence and cutting means by a rotating cutter, and a large outer leaf surrounding the head part is provided. Set the height of the weed pod so that it remains on the field side and cuts the head part. When cutting the head, the head part moves forward so that the head part is separated from the head part and the outer leaf by moving the aircraft, and then the head part is guided along the guide rod that moves forward. However, the stem is cut and fixed while the stem is planted in the field, and then the rotating cutter passes under the head part. After the cutting, the headed part is sequentially fed to the relay conveyor in a ball-hung state, so that the headed part can be sequentially harvested and harvested from the field.

JP 2009-5636 A

  However, there are variations in the planting position and growth state of the harvested headed vegetables, and some of them fall down, and some varieties have thin and bent stems. Entrainment of large outer leaves is unavoidable, and even if the head is held stationary by the guide rod, the holding posture is not fixed by the outer leaves that hang around, so that accurate cutting of the stem cannot be ensured. Even if the outer cutter for cutting the leaf is provided on the rotary cutter, it may cause cutting failure due to entanglement, and the head after cutting the stem will be in a collision state with the previous head, so the rotary cutter Even if a slide guide plate is provided so as to guide the head of the head, a large amount of outer leaf pieces scattered around may cause an obstacle and cause the head portion to stay. In this case, the mowing operation must be interrupted in order to remove the tangling of the outer leaf that causes the obstacle and recover the cutting by the cutter and the discharge to the relay conveyor. Intensive harvesting plans in line with the timing of growth in Japan have become confused, and this has become a major problem including not only shipping quality but also the operation of work equipment.

  The object of the present invention is to avoid the entanglement of the outer leaves and smoothly handle the cutting of the stems and the discharge to the relay conveyor even if the planted vegetables to be harvested have a wide variation in planting position and growth state. It is providing the head part cutting device of the head vegetable harvester which can improve efficiency.

The invention according to claim 1 is a stationary holding means for holding a head portion of a headed vegetable vegetated on a farm field at a fixed position during the movement of the airframe, and a position immediately below the head portion held by the stationary holding means. In the head part harvesting device of the head vegetable harvesting machine consisting of cutting means for cutting from the stem part, the stationary holding means faces two endless belt mechanisms that support the endless belt so as to be able to circulate in the mutually facing parts. Provided with a belt elastic contact mechanism that arranges the head part so that the head part can be introduced and acts with a resilient force so that the introduced head part can be held, and the start end and rear end of the head part holding range by these two endless belt mechanisms The cutting action part of the said cutting means is arrange | positioned in the downward position within the range except a part, It is characterized by the above-mentioned.

  Since the elastic force acts on the opposed parts of both endless belts by the belt elastic contact mechanism, when the headed part is introduced between the two endless belt mechanisms arranged opposite to each other, the headed part is The stationary part is held by the opposing part that can move around with the introduced outer leaf, and the head part is cut off from the stem part side by the passage of the cutting means between them, and after the passage of the cutting action part, it is at the end of the holding range. It is kept continuously until.

According to a second aspect of the present invention, in the configuration of the first aspect, the endless belt mechanism is provided with horizontally long ridges formed in parallel by elastic strips extending in the circumferential direction on the outer peripheral surface of the endless belt.
A press-contact holding portion that suppresses vertical displacement of the head portion is formed by the horizontally long ridges arranged in parallel.

According to a third aspect of the present invention, in the configuration of the first aspect, the endless belt mechanism is provided with vertically elongated ridges formed by elastic strips extending in the transverse direction on the outer peripheral surface of the endless belt.
A press-contact transfer portion that suppresses lateral displacement of the head portion is formed by the vertically long ridges arranged in parallel.

According to a fourth aspect of the present invention, in the configuration of the first aspect, the belt elastic contact mechanism includes an elastic roller that exerts an elastic force in a direction opposite to the inner peripheral surface side of each endless belt of the endless belt mechanism. It is characterized by comprising.
Each of the endless belt mechanisms arranged opposite to each other can be handled as an integral unit provided with a resilient contact mechanism using a resilient contact roller.

According to a fifth aspect of the present invention, in the configuration of the first aspect, the cutting means includes a main rotary blade that receives a rotational driving force and a sub-rotary blade that can be driven and rotated in contact with one surface thereof. .
The counter-rotating cutter can be constituted by a sub-rotating blade that is driven to rotate.

According to a sixth aspect of the present invention, in the configuration of the first aspect, the endless belt mechanism is supported such that the position of the endless belt mechanism can be adjusted in the body width direction.
The guide width of the head portion can be changed by adjusting the position of the endless belt mechanism in the body width direction.

According to a seventh aspect of the present invention, in the configuration of the first aspect, the cutting means suspends and supports the cutting action portion by the cutter transmission mechanism, and the cutter transmission mechanism is pivotally supported so that the cutting action portion can be moved up and down. It is characterized by.
By the rotation of the pivoted cutter transmission mechanism, the cutting action portion is suspended and supported so that the position of the cutting action portion can be changed vertically.

  In the head part cutting device according to claim 1, the introduced head part can be fixedly held in a stable posture within a predetermined holding range together with the outer leaf by the endless belt mechanism with the elastic contact mechanism. It is restrained and the cutting means functions reliably and can be cut while the stem is planted in the field. After cutting, the headed part is continuously held with the outer leaf over the cutting action part. Therefore, by arranging the relay conveyor below it, it is possible to reliably pass the headed portion together with the outer leaves to the relay conveyor without causing stagnation, and efficient harvesting traveling by smooth discharge becomes possible.

  In addition to the effect of claim 1, the head part cutting device of claim 2 is formed by a horizontally long protrusion that is arranged in parallel, so that a press contact holding part that suppresses vertical displacement of the head part is formed. The vertical displacement of the head portion on the facing surface is suppressed, and the holding height can be secured.

  In addition to the effect of the first aspect, the head part cutting device according to the third aspect forms a press-contact transfer part that suppresses the lateral displacement of the head part by the vertically long ridges arranged in parallel. It is possible to reliably send to

  According to the fourth aspect of the present invention, in addition to the effect of the first aspect, the head part cutting device can be individually configured as a unit in which the endless belt mechanism is integrally provided with the elastic contact roller. By simple operation of setting, it can be applied to a wide variety of headed vegetables.

  According to the fifth aspect of the present invention, in addition to the effect of the first aspect, the counter-rotating cutter with a simple auxiliary rotary blade enables stable cutting with a simple configuration.

  In addition to the effect of claim 1, the head part cutting device of claim 6 can change the guide width of the head part by adjusting the position of the endless belt mechanism in the body width direction, so that the head part of a wide range of sizes can be obtained. Can respond.

  In addition to the effect of the first aspect, the head part cutting device according to the seventh aspect guides the head part because the cutting action part is suspended and supported by the pivoted cutter transmission mechanism so that the position of the cutting part can be changed up and down. Regardless of the height position of the stationary holding means to be held, it is possible to change the cutting position of the stem portion according to the situation of the field and the headed vegetables, and to perform the traveling harvest.

Side view of a head vegetable harvester loaded with the head portion harvesting device of the present invention Top view of the main part of the heading part mowing device Side view of the main part of the head part cutting device with partial breakage Partially enlarged side view of endless belt (a) and its cross-sectional view (b) Perspective view of the cutting action part of the cutter Main part enlarged plan view of the transmission mechanism of the cutting means

An embodiment specifically configured based on the above technical idea will be described with reference to the drawings.
FIG. 1 is a side view of a headed vegetable harvesting machine to which the headed part cutting device of the present invention is applied.
The headed vegetable harvesting machine 1 is provided with a head-part 2 for cutting the head part of the traveling part 2 where the field traveling action F can be performed by a crawler or the like so that the head part can be moved up and down. The head part A of the vegetables is cut from the field, and then accommodated in a rear connected integrated vehicle (not shown) by the linkage operation of the relay conveyor 4 and the discharge conveyor 5 supported on the traveling part frame by the suspension links 4a and the like. Composed.

  The head part cutting device 3 includes a stationary holding means 6 that holds the head part A while slightly lifting it at the vegetation position in the field during the travel of the traveling part 2, and a position immediately below the head part A held by the stationary holding means 6. The cutting means 7 having a cutting action part that cuts at the position of the stem B facing the position is configured as a single set, and the two sections are arranged in parallel so as to be vertically movable by the hanging frame 8, and Supporting wheels 9 with weed rods are provided in the intercostal position so as to enable cutting at a predetermined ground height.

  The suspension frame 8 includes adjustment portions 8a and 8b for changing the suspension height setting, and the rear portion thereof is supported by a transmission support shaft 10 having a vehicle width direction axis provided at the front portion of the traveling portion 2 and rearward. By connecting the hydraulic cylinder 11 to the extending portion 8c, the head portion reaping device 3 can be lifted up to a height required for traveling.

  The head portion cutting device 3 is provided with a hydraulic motor 13 to supply power for the stationary holding means 6. Further, in order to supply power to the cutting means 7, a transmission shaft (not shown) for receiving engine power is provided concentrically on the transmission support shaft 10 on the traveling section 2, and the cutter transmission shaft 12 and vehicle width for receiving the rotational power. A cutter transmission mechanism comprising a transmission case 12a swingable about the direction axis extends from the outer side of the relay conveyor 4 below the stationary holding means 6 to drive the cutting action portions of the cutting means 7 and to change the height. A height adjustment mechanism 16 with a support wheel 15 and a handle 16a is attached to adjust the suspension height.

  The head portion cutting device 3 will be described in detail. As shown in FIGS. 2 and 3, respectively, the main part plan view and the side view by partial breakage, the stationary holding means 6 is configured so that the endless belt 21 can circulate. The two endless belt mechanisms 22 and 22 are arranged opposite to each other so that the head portion A can be held in the opposite portion.

  Each of the endless belt mechanisms 22 arranged opposite to each other stretches the endless belt 21 so as to be capable of rotating around by a driving roller 24 and a driven roller 25 attached to both ends of the frame 23, As the belt elastic contact mechanism for elastically holding the head portion A by applying elastic force, elastic contact rollers 27, 27 are provided at two locations in the circumferential direction on the tension side. Each is supported on the frame 23 via the support arms 27a and 27a, and the tension roller 28 acting on the slack side of the endless belt 21 is similarly supported on the frame 23 via the support arm 28a to form an integral unit. Constitute. The elastic roller 27 and the tension roller 28 are configured to be able to adjust the elastic force generated by the springs 27b and 28b acting on the support arms 27a and 28a, respectively.

  The endless belt 21, as shown in a partially enlarged view (a) of the outer peripheral surface and a cross-sectional view (b) thereof in FIG. 4, is elongated horizontally by soft elastic strips 31, 31 such as sponges extending around the outer peripheral surface 21a. The protrusions are arranged in parallel to form the pressure contact holding portion of the head portion. By aligning the pressure contact holding portion with the height position of the maximum diameter of the head portion A, the holding height is secured by slightly pulling up the held head portion A without pulling out the headed vegetables from the field. However, the posture can be erect.

  Further, longitudinally long ridges (not shown) made of soft elastic strips 31 and 31 extending in the transverse direction on the outer peripheral surface 21a of the endless belt 21 are arranged in parallel to form a pressure contact transfer portion of the head portion. By this pressure contact transfer part, the horizontal displacement of the held head portion A is suppressed, and the backward feeding can be secured. Note that rack strips 32 and 32 for transmitting the rotational force of the drive roller 24 are formed on the inner peripheral surface 21 b of the endless belt 21.

  Each endless belt mechanism 22, 22 has a tension side facing each other, a driven roller 25 is disposed on the cutting introduction side, and the driven roller 25 side can be adjusted in position in the machine width direction with respect to the suspension frame 8. The driving roller 24 is disposed on the cutting and discharging side, and the driving roller 24 is connected to a transverse transmission shaft 26 a by a spline shaft that is connected to the hydraulic motor 13 through a gear box 26 supported by the suspension frame 8. The distance C between the driven rollers 25 and 25 is set wider than the distance D between the drive rollers 24 and 24 to allow a margin for the introduction width of the head portion A and to secure a holding range on the discharge side. Further, by changing the position of the gear box 26 in the body width direction and adjusting the distance between the both endless belt mechanisms 22, 22, the size of the head portion A can be widely adapted.

  As shown in a perspective view of FIG. 5, the cutting operation portion is a counter-rotating type cutting device having a large-diameter main rotary blade 41 and a sub-rotary blade 42 that is driven by rotating in contact with a part of the main rotary blade 41. It constitutes the action part and is individually supported at the lower positions of the two endless belt mechanisms 22, 22 facing each other, and the support position is within the range excluding the start end and the rear end of the holding range of the head A. Are arranged so that the front end edge to the rear end edge of the cutting action part can be accommodated, and the main rotary blade 41 receives power from the cutter transmission shaft 12 so that the cutting action by the opposed rotary blade that enables stable fixed position cutting is possible. The part is configured within the holding range of the stationary holding means 6.

  As shown in the enlarged plan view of the main part of FIG. 6, the transmission mechanism of the cutting means 7 drives the main rotary blade 41, which is a cutting action portion, connected to the cutter transmission shaft 12, and transmits the main rotary blade 41. The suspension support is provided by the case 12 a, and the support wheels 15 on the side of the transmission case 12 a are disposed integrally via the bending frame 51.

  The height adjusting mechanism 16 is provided with a guide cylinder that can be moved up and down at the rear part of the support wheel 15, and a screw type sliding mechanism that can adjust the height of the bending frame 51 to the ground at any time by rotating the handle 16 a extending to the cockpit. In addition to the configuration, by providing a pin fixing type slide adjusting portion 51 a at the connection portion with the bending frame 51, the set height of the cutting action portion can be changed.

  By providing the cutting means 7 below the stationary holding means 6, a unit having a cutting function for one line is configured, and the other one unit is arranged symmetrically with a distance between the ribs 2. A head-part cutting device 3 for reaping is configured. In addition, the stationary holding means 6 is set to a posture slightly inclined forward and downward when cutting.

  The head-part harvesting device having the above-described configuration is provided with a relay conveyor, a discharge conveyor, and the like, and is loaded so that it can move up and down in front of a traveling part capable of traveling on the field. Even in the case of severe, the entanglement of the outer leaf can be avoided and the cutting of the stem and the discharge to the relay conveyor can be smoothly processed to improve the cutting efficiency as described below.

  That is, the head part cutting device arranges two endless belt mechanisms that support the endless belt so as to be able to circulate so that the head part can be introduced to the mutually facing part, and the introduced head part can be held. Since the stationary holding means is configured by providing the belt elastic contact mechanism that acts on the elastic force, the elastic force acts on the opposite portions of the both endless belts by the belt elastic contact mechanism, and the ball is formed between the two endless belt mechanisms. When the portion is introduced, the head portion is integrally held and held by the facing portion that can rotate around together with the external leaf that is incidentally introduced.

  Further, since the cutting action portion of the cutting means is disposed at a lower position within the range excluding the start end portion and the rear end portion of the holding portion of the ball head portion by the stationary holding means including two endless belt mechanisms, When the cutting means passes in the process of holding the head part, the head part is cut from the stem part side, and the head part is continuously held until the end of the holding range even after passing through the cutting action part. .

  As described above, the endless belt mechanism with the belt elastic contact mechanism can hold the introduced head portion in a stable posture in a stable posture with the outer leaf in a predetermined holding range, so that the spreading of the outer leaf is suppressed and the cutting means Functions reliably, and after cutting, the heading part is continuously held with the outer leaf over the cutting action part. In addition, the headed portion can be reliably transferred to the relay conveyor together with the outer leaf, and efficient traveling harvesting by smooth discharge becomes possible.

  The head portion efficiently harvested with the outer leaves in this way is the process from the raising by the weed rod to the stationary holding means, the relay conveyor, the discharge conveyor, the stacking vehicle, the forwarding by the stacking vehicle, and then the outside In each process of discharge to the leaf excision machine, the outer leaves wrapped around it serve as cushions to protect the head part, so that high speed processing of each part can be achieved while ensuring the product quality of the head part. Therefore, the shipping quality and the planned operation of the work equipment can be ensured by the concentrated harvesting as planned according to the desired shipping timing.

Other technical features are summarized as follows.
First, since the endless belt mechanism is provided with a horizontally long protrusion formed by an elastic strip extending in the circumferential direction on the outer circumferential surface of the endless belt, a pressure contact holding portion that suppresses vertical displacement of the head portion is formed. While suppressing the spread of the outer leaves, the vertical displacement of the head portion on the facing surface is suppressed, and the holding height can be secured.

  Secondly, the endless belt mechanism is provided with longitudinal ridges formed by elastic strips extending in the transverse direction on the outer peripheral surface of the endless belt in parallel, thereby suppressing the lateral displacement of the headed portion by the longitudinal ridges arranged in parallel. Since the portion is formed, it is possible to reliably take in from the front and to send out reliably to the rear.

  Thirdly, the belt elastic contact mechanism is constituted by an elastic roller that exerts an elastic force in a direction opposite to the inner peripheral surface side of each endless belt of the endless belt mechanism, so that the belt elastic contact mechanism is integrated. Each endless belt mechanism can be individually configured as a unit with which it is equipped, so that the operation for setting the opposing distance is simplified, and it can be applied to a wide variety of headed vegetables, and it eliminates open outer leaves Therefore, maintenance becomes easy.

  Fourthly, since the cutting means is composed of a main rotary blade that receives a rotational driving force and a sub-rotary blade that can be driven and rotated in contact with one surface thereof, the counter-rotating blade having a simple follow-up configuration is used. At the previous crossover position, the stem portion can be stably cut together with the open outer leaf.

  Fifth, the endless belt mechanism can be adjusted in position in the body width direction so that the endless belt mechanism can be adjusted in the body width direction to change the guide width of the head portion. The heading part can be dealt with.

  Sixthly, the cutting means suspends and supports the cutting action portion by the cutter transmission mechanism, and the cutter action mechanism is pivotally supported so that the cutting action portion can be moved up and down, so that the position of the cutting action portion can be changed up and down. Since it is suspended and supported, it is possible to travel and harvest by changing the cutting position of the stem portion according to the situation of the field and the headed vegetables, without depending on the height position of the stationary holding means for guiding and holding the headed portion.

  In addition, the head part cutting device of the above-mentioned embodiment is configured by only a single unit provided with a cutting unit in a stationary holding unit, or a single row cutting, or a plurality of units are arranged in parallel with an intercostal distance. Therefore, it is clear that it can be configured as a plurality of trimmings with the necessary number of trimming strips, and since it is clear that it can be applied regardless of the riding type or walking type body configuration, the description thereof will be omitted.

DESCRIPTION OF SYMBOLS 2 Traveling part 3 Heading part cutting device 6 Stationary holding means 7 Cutting means 8 Hanging frame 10 Transmission support shaft 12 Cutter transmission shaft (cutter transmission mechanism)
12a Cutter transmission case (cutter transmission mechanism)
21 endless belt 21a outer peripheral surface 22 endless belt mechanism 23 frame 24 driving roller 25 driven roller 27 elastic roller (belt elastic mechanism)
31 Elastic strips (horizontal ridges, vertical ridges)
41 Main rotary blade (cutting part)
42 Sub-rotating blade (cutting part)
A heading part B stem part

Claims (7)

A stationary holding means for holding the head portion of the headed vegetable vegetated on the farm field in a fixed position during the movement of the aircraft, and a cutting means for cutting the head portion from the stem facing the position immediately below the head portion held by the stationary holding means; In the head part harvesting device of the head vegetable harvester consisting of
The stationary holding means arranges the two endless belt mechanisms that support the endless belt so as to be able to circulate so as to face each other so that the head can be introduced, and the introduced head can be held elastically. A belt elastic contact mechanism that acts on the force is provided, and the cutting action portion of the cutting means is arranged at a lower position within the range excluding the start end portion and the rear end portion of the holding portion of the head portion by these two endless belt mechanisms. A head portion harvesting device for a head vegetable harvesting machine. The headless part harvesting device of the headed vegetable harvesting machine according to claim 1, wherein the endless belt mechanism is provided with horizontally long protrusions in parallel by elastic strips extending in the circumferential direction on the outer peripheral surface of the endless belt.
A pressure contact holding part of the headed part is formed by the horizontally long ridges arranged in parallel. The headless part harvesting device of the headed vegetable harvesting machine according to claim 1, wherein the endless belt mechanism is provided with vertically long ridges made of elastic strips extending in the transverse direction on the outer peripheral surface of the endless belt.
A pressure contact transfer part of the heading part is formed by the vertically long ridges arranged in parallel.   The head vegetable vegetable harvesting machine according to claim 1, wherein the belt elastic contact mechanism is constituted by an elastic contact roller that exerts an elastic force in a direction opposite to the inner peripheral surface side of each endless belt of the endless belt mechanism. Heading part mowing device.   2. The head portion cutting device for a head and vegetable harvesting machine according to claim 1, wherein the cutting means comprises a main rotary blade that receives a rotational driving force and a sub rotary blade that is in contact with one side and can be driven to rotate.   The headless part harvesting device of the headed vegetable harvesting machine according to claim 1, wherein the endless belt mechanism is supported so that the position of the endless belt mechanism can be adjusted in the body width direction.   The head of the vegetable vegetable harvesting machine according to claim 1, wherein the cutting means suspends and supports the cutting operation portion by a cutter transmission mechanism and pivotally supports the cutter transmission mechanism so that the cutting operation portion can be moved up and down. Partial cutting device.

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