JP2011041489A - Water droplet-removing attachment and harvester equipped with the attachment - Google Patents

Abstract

The present invention provides a technique for effectively removing water droplets in the harvesting of plants in a napped state.
The present invention provides a water droplet removal attachment that is attached to a harvesting device main body that harvests a napped plant while proceeding forward. This water droplet removal attachment includes a water droplet removal unit 210 and a support structure 220. The water droplet removing unit 210 removes water droplets attached to the napped plant. The support structure 220 supports the water droplet removing unit 210 at a position in front of the harvesting device main body 100 and separated from the front end portion of the harvesting device main body 100. The water droplet removal 210 has rotating members 211W1 and 211W2 that collide in the forward direction against a napped plant while rotating about a rotation axis that is substantially perpendicular to the traveling direction and substantially in a horizontal plane.
[Selection] Figure 1

Description

  The present invention relates to a plant harvesting apparatus that harvests a napped plant, and more particularly to a technique for removing water droplets from a plant immediately before harvesting. The napped plants include, for example, edible rice, feed rice, soybeans and wheat in the heading state. The plant harvesting device includes various devices such as a self-removing combine, a general-purpose combiner (also referred to as a direct current combine), and a so-called whole crop harvester.

  A so-called combine is widely used as a harvesting device for harvesting cereals from plants in a raised state such as rice, soybeans and wheat. On the other hand, so-called whole crop harvesters are also becoming popular as harvesting devices for harvesting forage ears and foliage at the same time. A combine is provided with each mechanism which performs a series of processes including cutting and threshing. The whole crop harvester includes various mechanisms that perform a series of processes including cutting and sealing. In such a harvesting apparatus having a plurality of mechanisms, water droplets adhering at the time of harvesting increase the operating burden of each mechanism, and therefore it is desired to remove water droplets beforehand from napped plants that are the harvest targets.

  Conventionally, water droplets must be removed by a method of waiting for drying by, for example, sunshine, or dropping water droplets using ropes pulled from both ends of a paddy field. The method of using a rope is not easy to use in a large-scale field because the rope pulled from both ends of the paddy field is moved laterally to slide on the rice ears to drop water drops. In order to solve such a problem, for example, a technique has been proposed in which a rod-like member is protruded in the lateral direction of the combine to remove water droplets. In these techniques, there are proposed a method of swinging rice ears with a rod-shaped member and dropping water droplets, and a method of removing water droplets by ejecting air from a rod-shaped member (Patent Documents 1 to 3).

JP 2001-86833 A JP 2000-279014 A Japanese Utility Model Publication No. 57-79769

  However, since these methods are methods for removing water droplets in an area adjacent to the harvesting path at the time of harvesting, at the start of harvesting, it was forced to harvest in a state before the water droplets were removed. Such a situation means that water and plants adhere to each mechanism of the harvesting device at the start of harvesting, and the effect was extremely limited from the viewpoint of reducing the burden on the harvesting device. .

  In order to solve at least a part of the above-described problems, an object of the present invention is to provide a technique for effectively removing water droplets in harvesting a napped plant.

  The present invention can provide techniques exemplified as the following configurations and modes. The first configuration example provides a water droplet removal attachment that is attached to a harvesting device main body that harvests napped plants while moving forward. The water droplet removal attachment includes a water droplet removal unit and a support structure. The water drop removing unit removes water drops attached to the napped plant. The support structure supports the water droplet removing unit at a position in front of the harvesting device main body and horizontally spaced from the front end of the harvesting device main body. The water droplet removing unit has a rotating member that collides in the forward direction against a napped plant while rotating around a rotation axis that is substantially perpendicular to the traveling direction and substantially in a horizontal plane.

  In the water droplet removal attachment of the first configuration example, the water droplet removal unit is mounted in front of the harvesting device main body and at a position horizontally separated from the front end of the harvesting device main body, so that the water droplets are removed from the plant. Immediate harvesting can be realized. Thereby, the water droplet removal at the time of harvesting can be reliably realized from the start of harvesting. On the other hand, the water drop removing unit has a rotating member that collides in the forward direction against a napped plant while rotating around a rotation axis that is substantially perpendicular to the traveling direction and substantially in a horizontal plane, so that the number of rotations can be adjusted. Can freely adjust the speed and frequency of collision with the plant. Furthermore, the water drop removing unit is disposed in front of the harvesting device main body and at a position horizontally separated from the front end of the harvesting device main body, so that the napped plant once swayed in the traveling direction is arranged. Harvested with the posture restored. Since the plants in the napped state are spatially dispersed by the large movement of the plants at this time, the fall of water droplets can be promoted to prevent reattachment. Thereby, effective water droplet removal at the time of harvesting from the start of harvesting can be realized.

  Furthermore, for example, by devising the rotational speed and shape of the rotating member, it is possible to provide a degree of freedom in design for easily realizing appropriate water droplet removal according to the type of plant and the state of water droplet adhesion. The water droplet removal attachment has a broad meaning and does not necessarily have to exist as a separate body to be attached to the harvesting device main body, and includes those manufactured and sold integrally with the harvesting device main body. . In addition, the “predetermined direction” has a broad meaning, for example, “a preset traveling direction of the harvesting device main body at the time of harvesting” or “any direction in front of the harvesting device main body or the front of the harvesting unit (the harvesting unit). ”Can be moved to the left and right).

  The second configuration example is a reel bar configured such that, in the attachment of the first configuration example, the rotating member gives the plant a swing having both components of a tangential direction of rotation and a direction parallel to the rotation axis according to the rotation. have. This reel bar can be pushed in the close-up direction while sliding the nap of the plant in the napping state, so that the napping of the nap of the nap in the plant is suppressed and the movement of the nap of the plant is complicated. Can be made. Thereby, water droplets can be effectively removed while suppressing drop-off of the ears mainly due to the winding of the ears.

  In the third configuration example, in the attachment of the second configuration example, the reel bar has a portion inclined with respect to the direction of the rotation axis in the horizontal plane, so that both the tangential direction of rotation and the direction parallel to the rotation axis are included. It is configured to give the plant a perturbation having In the third configuration example, since the angle of inclination is variable, it is possible to achieve appropriate swaying suppression and effective water droplet removal suitable for the type of plant by giving an appropriate swing according to the type of plant. it can.

  The fourth configuration example has a rotation swing portion in which the reel bar is rotatably mounted in accordance with the reaction received from the plant in the attachment of the second configuration example. Since the rotation swing part can release the winding of the ears of the plant by the rotation according to the reaction received from the plant, it is possible to more effectively suppress the dropping of the ears.

  According to a fifth configuration example, in the water droplet removal attachment according to any of the second to fourth configuration examples, the water droplet removal unit includes a hollow center shaft member and a pair of rotary bearings. The hollow central shaft member discharges the gas supplied from the gas supply hole and the gas supply hole so that the central axis of the discharge is within a range of an angle of 60 degrees before and after the traveling direction with respect to the vertically downward direction. And two gas discharge holes. The pair of rotating bearings support the rotating member so as to be rotatable with respect to the hollow central shaft member. As a result, the adhering water remaining after striking the reel bar can be removed, and water droplets separated from the plant can be quickly dropped on the ground surface to prevent reattachment to the plant.

  In the sixth configuration example, in any one of the first to fifth water droplet removal attachments, the harvesting device main body is equipped with a vehicle that allows the harvesting device main body to travel, and can swing in the vertical direction with respect to the vehicle. And a cutting portion that has been cut. Since the support structure has a cutting part side mounting part that is configured to be attached to the cutting part, the support structure has an appropriate height corresponding to the unevenness and inclination of the ground surface by utilizing the swing function of the cutting part. With this, water droplet removal can be performed.

  In a seventh configuration example, in any one of the first to sixth water drop removal attachments, the support structure is configured so that the water drop removal unit is variably mounted in a vertical position. have. As described above, since the water droplet removing unit can be variably mounted in the vertical direction, for example, it is possible to realize water droplet removal at an appropriate height according to the type of plant.

  The present invention is not limited to the above-described configuration example (apparatus), and can be realized by various configurations such as a water droplet removal method, a method of harvesting while removing water droplets, and a harvesting device having a water droplet removal attachment.

  The present invention can effectively remove water droplets in harvesting plants in the napped state, and can provide a degree of design freedom for realizing the above-described configuration examples.

The side view which shows the structure of the harvesting apparatus 10 which concerns on the Example of this invention. The top view which shows the structure of the harvesting apparatus 10 which concerns on the Example of this invention. The front view which shows the structure of the harvesting apparatus 10 which concerns on the Example of this invention. The side view which shows the structure of the water droplet removal attachment 200 which concerns on the Example of this invention. The bottom view which shows the structure of the water droplet removal part 210 which concerns on the Example of this invention. Sectional drawing which shows the outline | summary of the drive mechanism of the water droplet removal part 210 which concerns on the Example of this invention. Explanatory drawing which shows the mode of the geometric positional relationship of two reel bars which concerns on the Example of this invention, and a water drop removal. Explanatory drawing which shows the geometrical positional relationship of the four reel bars which concern on the modification of this invention, and the mode of a water drop removal. Explanatory drawing which compared the ground surface height of the reel bar in an Example and a modification.

The present invention can also be realized as a more preferable embodiment by including, for example, the following features alone or in combination.
(Feature 1) The water droplet removing unit drives the rotating member with a hydraulic motor. Since the internal mechanism and the like of the harvesting device are generally operated by a hydraulic drive, by sharing the power source with them, a simple configuration can be realized and the reliability can be improved.
(Characteristic 2) The water drop removing unit-side mounting unit can change the vertical position of the water drop removing unit with a hydraulic actuator. Thereby, a flexible operation | movement is realizable according to the case of harvesting various plants, or the state of a plant (for example, sleeping state).
(Characteristic 3) The support structure can change the horizontal separation distance between the water droplet removal unit and the harvesting device main body by a hydraulic actuator. Thereby, a flexible operation | movement is realizable according to the case of harvesting various plants, or the state of a plant (for example, sleeping state).

In the following, embodiments of the present invention will be described in the following order in order to clearly describe the operation and effects of the present invention based on the above-described features.
A. Configuration and operation content of harvesting apparatus according to an embodiment of the present invention:
B. Variation:

A. Configuration and operation content of harvesting apparatus according to an embodiment of the present invention:
FIG. 1 is a side view showing a configuration of a harvesting apparatus 10 according to an embodiment of the present invention. FIG. 2 is a plan view showing the configuration of the harvesting apparatus 10 according to the embodiment of the present invention. FIG. 3 is a front view showing the configuration of the harvesting apparatus 10 according to the embodiment of the present invention. The harvesting device 10 includes a harvesting device main body 100 and a water droplet removal attachment 200. The harvesting device main body 100 is a whole crop harvesting machine that includes a cutting unit 110 that cuts napped plants such as rice, soybeans, and wheat, and a feed crawler 120 that cuts the cut plants to form a roll bale. It is. In the present embodiment, the present invention is applied to a whole crop harvester, but the present invention can also be applied to, for example, a self-removing combine or a general purpose combine.

  As shown in FIG. 1, the water droplet removal attachment 200 is fixed to the cutting unit 110 using attachment fixing members 222 and 223. The mowing unit 110 includes a weeding body 111, a pulling device 112 (FIGS. 2 and 3), a scraping and conveying device 113 (FIG. 1), a sensor 114 (FIG. 1), and a support that integrally supports them. And a frame 115 (FIG. 1) as a structure. The weed body 111 weeds the foliage part of a plant in a napped state. The raising device 112 raises the weed and foliage. The take-in conveyance device 113 conveys the foliage portion that is raised and cut by a cutting blade (not shown) to the supply conveyance device 127 of the crawler 120. The sensor 114 detects the height of the lower end of the cutting unit 110 from the ground.

  The mowing unit 110 is provided so as to be able to swing up and down with respect to the crawler 120 so that the mowing can be appropriately performed according to the unevenness and inclination of the ground surface. The frame 115 (FIG. 1) is mounted on the crawler 120 using a swing support portion 125 and a hydraulic actuator 126. The frame 115 can swing up and down around the swing support part 125. The hydraulic actuator 126 operates the height of the lower end of the cutting unit 110 from the ground to an appropriate height according to the sensor input from the sensor 114. Thereby, the cutting unit 110 can perform cutting at an appropriate height while swinging the cutting unit 110 up and down in accordance with a change in the ground height of the field.

  As described above, the cutting unit 110 supplies the harvested plants to the supply and transport device 127 of the crawler 120 via the scraping and transporting device 113 (FIG. 1). The supply conveyance device 127 can change the receiving position of the supply conveyance device 127 in accordance with the vertical movement of the scraping conveyance device 113 of the cutting unit 110. The plant supplied to the supply / conveying device 127 of the crawler 120 is shredded and roll-formed to a high density by a roll bale forming mechanism 121 of the crawler 120 to form a cylindrical roll bale.

  The roll veil is then lapped with a film (not shown) to enable high quality silage production. Silage is not only directly fed as a good quality roughage, but can also be used as a mixed feed (TMR). Further, the fermentation quality may be improved and stabilized by adding lactic acid bacteria or the like to the silage.

  FIG. 4 is a side view showing the configuration of the water droplet removal attachment 200 according to the embodiment of the present invention. The water droplet removal attachment 200 includes a water droplet removal unit 210 and a support structure 220. The support structure 220 supports the water droplet removal reel 211 at a position in front of the harvesting device main body 100 and horizontally spaced from the front end of the harvesting device main body (the front end of the weeding body 111 in this embodiment). Can do. The support structure 220 includes a frame-shaped structure 221, four left and right attachment fixing members 222 and 223, and four right and left fastening members (bolts and nuts) 225. A large number of fastening holes 224 for fixing the water droplet removing unit 210 are formed in the frame-shaped structure 221.

  The frame-shaped structure 221 is fixed to the frame 115 of the cutting unit 110 using four left and right attachment fixing members 222 and 223 (see FIG. 1). As a result, the water drop removal attachment 200 swings up and down together with the cutting unit 110, so that the height of the water drop removal attachment 200 from the ground is maintained at an appropriate position according to the unevenness and inclination of the ground surface.

  FIG. 5 is a bottom view showing the configuration of the water droplet removing unit 210 according to the embodiment of the present invention. FIG. 6 is a cross-sectional view illustrating an outline of a drive mechanism of the water droplet removing unit 210 according to the embodiment of the present invention. The water droplet removal unit 210 includes a water droplet removal reel 211, a reel support frame 212, a reel bearing plate 214, a hydraulic motor 213, a drive chain 215, and a drive gear 211G. A reel support bearing plate 214 is fixed to the reel support frame 212. In addition, although illustration is abbreviate | omitted in FIG. 6, when the reel bars 211W1 and 211W2 are configured to freely rotate in a direction that reduces friction with the tip when contacting the tip (details will be described later). It is possible to protect the tip in a healthy state by suppressing frictional damage received by the tip. 2 and 6 exemplify a configuration in which the hydraulic motor 213, the drive chain 215, and the drive gear 211G are provided on the left side, they may be provided on either the left or right side.

  As illustrated in FIG. 4, the reel bearing plate 214 includes a pair of bearings 214 </ b> B (FIG. 6) that fixedly supports (non-rotates) the water droplet removal reel 211. A hydraulic motor 213 is fixed to the reel bearing plate 214. The hydraulic motor 213 is a variable speed hydraulic motor that rotationally drives the sprocket 213S. The hydraulic motor 213 drives the drive gear 211G of the water droplet removal reel 211 to rotate in the direction of the arrow through the drive chain 215 at a reduction ratio of 3 (which can be changed by replacing the sprocket 213S if necessary). The specification of the hydraulic motor 213 is determined according to the torque necessary for the rotation of the water droplet removal reel 211.

  The reel support frame 212 is fastened to the frame-like structure 221 by passing four sets of right and left fastening members 225 through the four fastening holes 224 and fastening them. The fastening position (up and down position) can be adjusted by appropriately selecting holes for fastening the four sets of right and left fastening members 225 from among a large number of fastening holes 224. The reel support frame 212 may be fixed to the frame-like structure 221 so as to be movable up and down via, for example, a hydraulic actuator, and the front and rear positions of the water droplet removal reel 211 may be adjustable. Good. In this way, it is possible to respond appropriately and easily according to changes in the plants to be harvested and other changes in the situation. In addition, the “water drop removing unit side mounting unit” in the claims has a broad meaning including all of these configurations for fixing the reel support frame 212.

  The configuration of the water droplet removal reel 211 is as follows. As shown in FIGS. 5 and 6, the water droplet removal reel 211 includes two side plates 211SL and 211SR made of aluminum or resin (or another material having the same strength) and two side plates 211SL and 211SR. Reinforcing disks 211DL, 211DR (not shown in FIG. 6), two reel bars 211W1, 211W2, four universal joints 211U1L, 211U1R, 211U2L, 211U2R (not shown in FIG. 6), intermediate support member 211R1, 211R2, a hollow center shaft member 211C, a drive gear 211G fixed to the side plate 211SR, and a pair of bearings 211BR. The hollow central shaft member 211C, for example, discharges air for releasing compressed water supplied from an electric blower (not shown) included in the crawler 120 and dropping the attached water to the ground. And a plurality of gas discharge holes 211h and a sealing member 211P. In this embodiment, aluminum disks having an outer diameter of 840 mm and a thickness of 5 mm are used for the two side plates 211SL and 211SR.

  The connection state of the water droplet removal reel 211 is as follows. The two side plates 211SL and 211SR are rotatably connected to the hollow central shaft member 211C via a pair of bearings 211BR. The two intermediate support members 211R1 and 211R2 pass through the drive gear 211G and the two side plates 211SL and 211SR at positions shifted from the rotation axis, and are coupled to each other with high rigidity (particularly rotational rigidity). is doing. In the present embodiment, the two intermediate support members 211R1 and 211R2 are configured as metal pipes having an outer diameter of 20 mm and an inner diameter of 10 mm. In attaching the two intermediate support members 211R1 and 211R2, the distance between the two side plates 211SL and 211SR is adjusted to 1700 mm. Further, the number of intermediate support members 211R1 and 211R2 may be three or more.

  The reel bar 211W1 is connected to the left side plate 211SL using a universal joint 211U1L (FIG. 5), and is connected to the right side plate 211SR using a universal joint 211U1R. The reel bar 211W2 is connected to the left side plate 211SL using a universal joint 211U2L, and is connected to the right side plate 211SR using a universal joint 211U2R. In this embodiment, the two reel bars 211W1 and 211W2 are connected to a position having a diameter of 800 mm with respect to the two side plates 211SL and 211SR.

  The inclination of the two reel bars 211W1 and 211W2 in the water droplet removal reel 211 with respect to the rotation axis is realized by the following configuration. Regarding the inclination of the reel bar 211W1, the universal joint 211U1L is fixed to the fastening hole 211Sh1 (FIG. 4) of the left side plate 211SL, and the universal joint 211U1R is fixed to a hole (not shown) at a position corresponding to the fastening hole 211Sh2 of the right side plate 211SR. It is realized by doing. On the other hand, regarding the inclination of the reel bar 211W2, the universal joint 211U2L is fixed to the fastening hole 211Sh4 of the left side plate 211SL, and the universal joint 211U2R is fixed to a hole (not shown) at a position corresponding to the fastening hole 211Sh3 of the right side plate 211SR. It is realized by. The inclination angle can be changed, for example, by changing the fastening hole to be fixed, or can be changed by changing the relative angle of the two side plates 211SL, 211SR.

  In this embodiment, the four universal joints 211U1L, 211U1R, 211U2L, and 211U2R can further rotate each of the two reel bars 211W1 and 211W2 with respect to the two side plates 211SL and 211SR. Thereby, even if the plant to be harvested winds around the two reel bars 211W1 and 211W2, it can be solved without causing excessive damage to the plant. The four universal joints 211U1L, 211U1R, 211U2L, and 211U2R are shown as conceptual diagrams for easy understanding.

  As described above, the water droplet removing unit 210 can rotationally drive the two reel bars 211W1 and 211W2 inclined with respect to the hollow central shaft member 211C by adopting the above-described configuration. Thereby, impact force can be given to the napped plant by the two reel bars 211W1 and 211W2, and the surface adhering water can be dropped. Furthermore, at the same time, the water droplet removing unit 210 uses the hollow center shaft member 211C fixed to the reel bearing plate 214 to eject the air from the plurality of gas discharge holes 211h to drop the remaining attached water, Reattachment can be suppressed by dropping the detached water droplets on the ground.

  FIG. 7 is an explanatory diagram showing a geometrical positional relationship between two reel bars 211W1 and 211W2 and a state of water droplet removal according to the embodiment of the present invention. FIG. 7 shows a state in which the reel bar 211W1 is colliding with the harvest target plant CP (plant in a raised state) by the rotation driving of the water droplet removal reel 211. The reel bar 211W1 is moved in the tangential direction M by the rotation Rot1 of the water droplet removal reel 211. The reel bar 211W1 moving in the tangential direction M can not only generate the acceleration m1 in the tangential direction M with respect to the harvest target plant CP but also generate the acceleration m2 in a direction perpendicular to the tangential direction M. .

  The acceleration m2 in the direction perpendicular to the tangential direction M is generated by the inclination of the reel bar 211W1. The inclination of the reel bar 211W1 is formed by the phase angle deviation when the rotation phase is defined in the rotation direction of the rotation Rot1. In this embodiment, the phase angle of the reel bar 211W1 is advanced by 30 degrees on the side plate 211SL side, and the phase is delayed by 30 degrees on the side plate 211SR side, thereby causing a relative deviation of 60 degrees. . This phase shift can be adjusted as described above.

The acceleration m2 in the direction perpendicular to the tangential direction M can generate the following series of effects.
(1) At the time of collision start (blow): At the time of collision start of the reel bar 211W1 with respect to the harvest target plant CP, escape by inclination can be given. Thereby, excessive striking in the tangential direction M can be reduced, while acceleration m2 in the rotation axis direction of the reel bar 211W1 can be generated to contribute to water droplet removal.
(2) After collision (shift): After the collision, the harvest target plant CP can be moved in the direction of the rotation axis of the reel bar 211W1. Thereby, acceleration can be applied while shifting the striking position on the harvest target plant CP. This is because the position of the hitting point moves away from the root of the harvesting target plant CP with the movement.
(3) Passing through: Since the tip of the harvesting target plant CP can be moved in the rotation axis direction of the water droplet removal reel 211, the burden of moving the tip in the axial direction of the reel bar 211W1 to pass under the reel bar 211W1 It can be reduced.

  As described above, this embodiment does not remove water droplets by simply striking the harvest target plant CP, but smoothly proceeds with the steps of “striking”, “shifting”, and “passing through”. Thus, it is possible to realize efficient removal of water droplets by generating complicated acceleration. As a result, it is possible to effectively balance the removal of water droplets and the reduction of damage to the harvest target plant CP (for example, the removal of the ears).

  In the present embodiment, each of the two reel bars 211W1 and 211W2 can be rotated with respect to the two side plates 211SL and 211SR (rotation Rot2). Therefore, in the “shift”, the two reel bars 211W1 and 211W2 It is also possible to reduce the friction of the harvest target plant CP and reduce the damage to the harvest target plant CP. In addition, the water droplet removing unit 210 of the present embodiment uses a hollow center shaft member 211C fixed to the reel bearing plate 214, and air for dropping water droplets from the plurality of gas discharge holes 211h to the ground. Since it can be discharged in the direction of the surface, not only can the water droplets be detached by the wind W, but also reattachment of the detached water droplets can be suppressed.

B. Variation:
Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. In addition, the technical elements described in the present specification or drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in the present specification or the drawings can achieve a plurality of objects at the same time, and has technical utility by achieving one of the objects. Specifically, for example, the following modifications can be implemented.

B-1. First Modification: In the above-described embodiment, the reel bars 211W1 and 211W2 are connected between the pair of side plates 211SL and 211SR. However, as shown in FIG. 8, for example, between the pair of side plates 211SL and 211SR. Further, at least one intermediate plate 211SM may be provided. In this modification, one reel bar 211W1 is divided into two reel bars 211W1L and 211W1R, and the length is almost halved. For this reason, in this modification, it is possible to obtain substantially the same inclination angle in the half of the embodiment with respect to the phase angle deviation.

  FIG. 9 is an explanatory diagram comparing the ground surface height of the reel bar in the example and the modification. In the embodiment, the height rises at the center by the height δ1 due to the inclination of the reel bar 211W1, whereas in the modification, the amount of rise is reduced to the height δ2. In this way, if the configuration is provided with at least one intermediate plate 211SM between the pair of side plates 211SL and 211SR, it is possible to reduce fluctuations in the surface height of the reel bar, and in particular, it is effective in removing water droplets at the center portion. Can be realized. However, since the intermediate plate 211SM has a surface that restricts the movement of the plant in the lateral direction, there is a problem of a trade-off between the restriction and the variation in height.

  Therefore, the configuration of the modified example in which at least one intermediate plate is provided has a high utility value as providing a degree of design freedom for appropriately responding to the width of the water droplet removal reel and the type of plant to be harvested. Specifically, when the width of the water droplet removal reel (length in the rotation axis direction) is long, an intermediate plate is provided (or the number is increased) to suppress excessive fluctuations in the surface height of the reel bar. .

B-2. Second Modification: In the above-described embodiment, the present invention is applied to a whole crop harvester. However, as described above, the present invention is also applied to, for example, a self-removing combine or a general-purpose combine (also referred to as a DC combine). good. The present invention can be widely applied to a plant harvesting apparatus that harvests napped plants. The napped plants include, for example, edible rice, feed rice, soybeans and wheat in the heading state.

B-3. Third modified example: In the above-described embodiment, the present invention is applied to a harvesting device including a harvesting part that can swing only in the vertical direction. For example, “cannot swing in the vertical direction”, “vertical direction and horizontal direction” It is also possible to apply the present invention to a harvesting device having a “reasonable (or sliding) of both” or “fixed” cutting part. Further, the water droplet removal attachment may be attached to the crawler as well as to the structure attached to the cutting unit. However, if attached to the cutting part, the water drop removal attachment swings up and down together with the cutting part, so that the height of the water drop removal attachment from the ground is maintained at an appropriate position according to the unevenness and inclination of the ground surface. Become. In addition, “front” in the claims has a broad meaning, for example, “the advancement direction of the harvesting device main body at the time of harvesting” or “the harvesting part can be moved to the left and right when the harvesting part can be swung left and right. "Both in front of the apparatus main body and in front of the cutting part".

B-4. Fourth Modified Example: In the above-described embodiment, the reel bar is mounted on the pair of side plates so as to be rotatable according to the reaction received from the plant, but it is not always necessary to rotate the entire reel bar, and a part of the reel bar rotates. It is good also as composition to do. In addition, the “rotation swing part” in the claims has a broad concept including, for example, a part of a rotatable reel bar and the entire rotatable reel bar.

B-5. Fifth Modification: In the above-described embodiment, a configuration in which two reel bars and two intermediate support members are used is illustrated. However, for example, three or more reel bars and intermediate support members may be used. Also, the number of reel bars and intermediate support members does not necessarily have to be the same. For example, the number of intermediate support members may be larger, such as three reel bars and four intermediate support members, or five reel bars. And the number of reel bars may be larger, such as three intermediate support members.

DESCRIPTION OF SYMBOLS 10 ... Harvesting apparatus 100 ... Harvesting apparatus main body 110 ... Harvesting part 111 ... Weeding body 112 ... Raising apparatus 113 ... Stake conveyance apparatus 114 ... Sensor 115 ... Frame 120 ... Crawler 121 ... Roll bale formation mechanism 125 ... Swing support part 126 DESCRIPTION OF SYMBOLS ... Hydraulic actuator 127 ... Supply conveyance apparatus 200 ... Water drop removal attachment 210 ... Water drop removal part 211W1, 211W2 ... Reel bar 211Sh1-211Sh4 ... Fastening hole 211 ... Water drop removal reel 211U1L, 211U1R, 211U2L, 211U2R ... Universal joint 211C ... Hollow center axis 211G ... driving gear 211h ... gas discharge hole 211i ... gas supply hole 211L1, 211R1 ... intermediate support member 211W1, 211W2 ... reel bar 211BR ... bearing 211SL, 211SR ... side plate 212 ... Lumpur support frame 213 ... hydraulic motor 214 ... reel bearing plate 215 ... drive chain 220 ... support structure 221 ... wall member 222, 223 ... attachment fixing member 224 ... fastening holes 225 ... fastening member

Claims (8)

A water droplet removal attachment that is attached to the harvesting device main body that harvests napped plants while moving forward,
A water droplet removal unit that removes water droplets attached to the napped plant;
A support structure that supports the water drop removing unit at a position in front of the harvesting device main body and horizontally spaced from a front end of the harvesting device main body;
With
The water droplet removal attachment, comprising: a rotating member that collides in the forward direction against the napped plant while the water droplet removing unit rotates about a rotation axis that is substantially perpendicular to the traveling direction and substantially in a horizontal plane. The water droplet removal attachment according to claim 1,
The water droplet removal attachment, wherein the rotating member has a reel bar configured to give the plant a swing having components in both a tangential direction of the rotation and a direction parallel to the rotation axis in response to the rotation. The water droplet removal attachment according to claim 2,
The reel bar has a portion inclined with respect to the direction of the rotation axis in a horizontal plane so as to give the plant a swing having components in both a tangential direction of the rotation and a direction parallel to the rotation axis. Is composed of
A water droplet removal attachment, wherein the inclination angle is variable. The water droplet removal attachment according to claim 2 or 3,
The water droplet removing attachment, wherein the reel bar has a rotating swing portion that is rotatably mounted in accordance with a reaction received from the plant. The water droplet removal attachment according to any one of claims 2 to 4,
The water droplet removal unit is
A gas supply hole and at least two gases for discharging the gas supplied from the gas supply hole so that a central axis of discharge falls within a range of an angle of 60 degrees before and after the traveling direction with respect to a vertically downward direction A hollow hollow central shaft member having a discharge hole;
A pair of rotating bearings that support the rotating member rotatably with respect to the hollow central shaft member;
Water drop removal attachment with. The water droplet removal attachment according to any one of claims 1 to 5,
The harvesting device main body has a vehicle that allows the harvesting device main body to travel, and a cutting part that is equipped to be swingable in the vertical direction with respect to the vehicle,
The water droplet removal attachment, wherein the support structure has an attachment fixing member configured to be attached to the cutting unit. The water droplet removal attachment according to any one of claims 1 to 6,
The water droplet removal attachment, wherein the support structure has a water drop removing unit side mounting portion configured such that the vertical position of the water droplet removing portion is variably mounted. A harvesting device,
A harvesting device body that harvests plants in a napped state while proceeding in a predetermined direction;
The water droplet removal attachment according to any one of claims 1 to 7,
Harvesting device comprising.

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