Mobile farm machine with fertilizer spreader

Abstract

A mobile farm machine with a fertilizer applicator capable of uniformly spreading granular fertilizer in the width direction of the machine body. The mobile farm machine with a fertilizer applicator has left and right front wheels and rear wheels and spreads granular fertilizer, the fertilizer applicator having a fertilizer hopper, a plurality of shallow furrow openers, a plurality of deep furrow openers, and a fertilizer hose, the fertilizer hopper being composed of a plurality of deep fertilizer hoppers and shallow fertilizer hoppers, the fertilizer hose being composed of deep fertilizer hoses equal in number to the deep fertilizer hoppers and shallow fertilizer hoses equal in number to the shallow fertilizer hoppers, the deep fertilizer hoses being configured to deliver granular fertilizer from the connected deep fertilizer hoppers to the deep furrow openers, and the shallow fertilizer hoses being configured such that their upper ends are connected to the shallow fertilizer hoppers at the same position in the width direction of the machine body from below in substantially straight lines to deliver granular fertilizer from the shallow fertilizer hoppers to the shallow furrow openers.

Description

Technical Field

[0001] This invention relates to a mobile agricultural machine equipped with a fertilizer applicator capable of spreading granular fertilizer into the deep layers between ridges and the shallow layers of the side ridges. Here, "between ridges" means between ridges where seedlings or the like are planted using the agricultural machine along its direction of travel, and also includes between ridges where seedlings or the like have already been planted and adjacent ridges where planting will take place next. Background Technology

[0002] Patent document 1 discloses a fertilization device, which is equipped with: a fertilization nozzle for applying slurry fertilizer to a shallow position; and a fertilization nozzle for applying slurry fertilizer to a position deeper than the above position.

[0003] As is well known, slurry fertilizers are expensive, and granular fertilizers applied to the surface are only effective for early growth. While slow-release coated granules could be considered to address this issue, this could potentially create microplastics and cause environmental problems. Therefore, deep fertilization with uncoated granular fertilizers is desirable.

[0004] The deep fertilization nozzle described in Patent Document 1 spreads slurry fertilizer from the surface of the field to the lower side. Although it can also be considered for granular fertilizer, it has the following problems: in order to spread granular fertilizer, it is necessary to increase the nozzle diameter and overcome the pressure of mud and water applied to the nozzle end to squeeze out the granular fertilizer structure, which makes it unsuitable for application.

[0005] Furthermore, although it is possible to install a furrow opener in front of the deep fertilization nozzle and allow granular fertilizer to fall into the furrows formed by the forward movement, the invention described in Patent Document 1 has the following problem: Since there is a ground leveling float above the deep fertilization nozzle, even if the furrow opener is installed directly in front of the deep fertilization nozzle, the formed furrows will be immediately closed by the soil squeezed by the ground leveling float. In addition, since the nozzle is blocked by soil, the granular fertilizer cannot fall.

[0006] In response to this problem, the applicant of this application has proposed an invention in Japanese Patent Application No. 2023-184859, which is a mobile agricultural machine with a fertilizer applicator that can reliably and stably spread granular fertilizer deep between rows.

[0007] The invention described above is a mobile agricultural machine with a fertilizer applicator for spreading granular fertilizer. It comprises: left and right front wheels and rear wheels, which are capable of rotating in the forward direction while in contact with the surface of the field and the plow pan, and are arranged in a width direction orthogonal to the forward direction; a sensor float, positioned at the midpoint of the machine's width direction between the left and right rear wheels, and further rearward than the rear wheels; and multiple ground-leveling floats, arranged on both sides of the sensor float in the width direction of the machine. The fertilizer applicator is characterized by: a fertilizer hopper for storing granular fertilizer; multiple shallow furrow openers for forming furrows on the side ridges at each planting position so that the granular fertilizer falls to the surface of the field; and multiple deep furrow openers for forming furrows between the ridges so that the granular fertilizer... The system comprises: a furrow that falls to a depth greater than the furrow formed by the shallow furrow opener; a fertilizer hose that supplies granular fertilizer from the fertilizer hopper to the shallow furrow opener; and a lower hose connected to the fertilizer hose in such a way that a portion of the granular fertilizer passing through the fertilizer hose is diverted and delivered to the deep furrow opener, the deep furrow opener comprising: a plurality of inter-row deep furrow openers configured to connect to the end of the lower hose at a position in the middle of the width direction of the sensor float and the ground leveling float when viewed from above, and configured to spread granular fertilizer deep between the rows; and outer end deep furrow openers disposed on both sides of the width direction of the ground leveling float, configured to spread granular fertilizer for one or two rows.

[0008] Here, based on the experiment of the mobile agricultural machinery with fertilizer applicator mentioned above, regarding the undesirable situation of uneven fertilizer distribution caused by the diversion of shallow soil, and regarding the undesirable situation of straw accumulation at the end of the field behind the leveling rotor of the furrow opener caused by the furrow opener used for deep soil, straw turning and burying plate.

[0009] That is, although the amount of granular fertilizer spread in the shallow furrows must be uniform regardless of the machine's position in the width direction, the following problems arise: deviations occur and the furrowing marks in the deeper layers between rows increase.

[0010] Existing technical documents

[0011] Patent documents

[0012] Patent Document 1: Japanese Patent Application Publication No. 9-294439 Summary of the Invention

[0013] The objective of this invention is to provide a mobile agricultural machine with a fertilizer applicator that can uniformly spread granular fertilizer in the width direction of the machine body.

[0014] The inventors of this invention discovered that, regarding the deviation in the amount of granular fertilizer applied, when the shallow fertilizer application hose is branched using a diverter during the operation of a mobile agricultural machine, the deviation in the resistance within the pipe caused by the different orientations, bends, and lengths of the hose before and after the branching process leads to fertilizer distribution deviations. Furthermore, the vibration and swaying characteristics of the entire agricultural machine can also cause fertilizer deviations. Regarding the accumulation of straw in the furrow opener, it has been confirmed that the straw transported backward by the leveling rotor at the edge of the field accumulates on the furrowing straw turning plate below and behind the rotor.

[0015] Hereinafter, the deep furrow opener between rows will be referred to as the deep furrow opener, and the shallow furrow opener on the side ridges will be referred to as the shallow furrow opener. Regarding the hopper, the deep fertilizer hopper, the shallow fertilizer hopper, and the fertilizer hose will be referred to as the deep fertilizer hose and the shallow fertilizer hose, respectively.

[0016] The present invention solves the above-mentioned problems by means of a mobile agricultural machine with a fertilizer applicator, comprising: left and right front wheels and rear wheels, which are capable of rotating in the forward direction while in contact with the surface of the field, and are arranged in a width direction orthogonal to the forward direction; a sensor float, which is disposed in the middle of the width direction of the machine body between the left and right pair of rear wheels, and is positioned behind the rear wheels; and a plurality of ground leveling floats, which are disposed on both sides of the sensor float in the width direction of the machine body. The mobile agricultural machine with the fertilizer applicator spreads granular fertilizer. The fertilizer applicator is characterized by having: a fertilizer hopper for storing granular fertilizer; a plurality of shallow furrow openers for forming furrows on the side ridges at each planting position so that the granular fertilizer falls to the surface of the field; and a plurality of deep furrow openers for forming furrows between the ridges so that the granular fertilizer falls to the surface of the field. The system includes: furrows that fall to a depth greater than the furrows formed by the shallow furrow opener; and fertilizer hoses that deliver granular fertilizer from the fertilizer hoppers to the top of the deep furrow opener and the shallow furrow opener. The fertilizer hoppers consist of multiple deep fertilizer hoppers and multiple shallow fertilizer hoppers. The fertilizer hoses consist of the same number of deep fertilizer hoses as the deep fertilizer hoppers and the same number of shallow fertilizer hoses as the shallow fertilizer hoppers. The deep fertilizer hoses are configured to deliver granular fertilizer from the connected deep fertilizer hoppers to the deep furrow opener, and the shallow fertilizer hoses are configured such that their upper ends are connected to the shallow fertilizer hoppers from below at the same position in the width direction of the machine body, delivering granular fertilizer from the shallow fertilizer hoppers to the shallow furrow opener.

[0017] Furthermore, the present invention solves the aforementioned problem based on the aforementioned mobile agricultural machinery with a fertilizer applicator by the following mobile agricultural machinery with a fertilizer applicator, characterized in that the number of deep fertilizer hoppers is the same as the number of deep furrow openers; the number of shallow fertilizer hoppers is half that of the shallow furrow openers; and a diversion pipe with an inverted Y-shaped shape is formed on the lower side of the shallow fertilizer hopper and the shallow furrow opener, extending downwards towards the inverted Y-shape of the diversion pipe. The shallow furrow opener is configured with two branched shallow fertilization hoses, the upper ends of which are connected to the lower ends of the shallow fertilization hoses via an inverted Y-shaped diversion pipe. This allows granular fertilizer to be divided into two parts and supplied to two different shallow furrow openers. The left and right inclined sides of the inverted Y-shape of the diversion pipe are both set at an angle of 45 degrees or more to the ground. The angles of 45 degrees or more to the ground are set to be equal, and the lengths are also set to be equal, so that the fertilizer can fall reliably after the diversion.

[0018] In addition, the above-mentioned problem was solved by a mobile agricultural machine with a fertilizer applicator, characterized in that the ditching straw turning plate of the deep ditcher is also formed in a structure that does not receive straw under the leveling rotor at the edge of the field, and the angle of attack of the plate to the ground is minimized within the limited space.

[0019] Invention Effects

[0020] According to the present invention, the fertilizer hopper is composed of a plurality of deep fertilizer hoppers and shallow fertilizer hoppers arranged in the width direction of the machine body. In addition, the shallow fertilizer hose and the diversion pipe are formed to make the flow path conditions the same for each ridge by means of the fertilizer hose, thereby supplying granular fertilizer to the shallow furrow opener. Therefore, the distribution of shallow fertilizer is made uniform, and as a result, the granular fertilizer from the fertilizer applicator can be spread evenly for each ridge. Attached Figure Description

[0021] Figure 1 This is a side view showing a mobile agricultural machine with a fertilizer applicator according to an embodiment of the present invention.

[0022] Figure 2 It is along Figure 1 A bottom view of line II-II.

[0023] Figure 3 It is along Figure 1 A top view of line III-III.

[0024] Figure 4 It is along Figure 1 Rear view of line IV-IV.

[0025] Figure 5 This is a frontal view of the fertilizer applicator involved in this embodiment.

[0026] Figure 6 This is a schematic diagram illustrating the relationship between the deep fertilizer hopper, shallow fertilizer hopper, deep fertilizer hose, shallow fertilizer hose, deep furrow opener, and shallow furrow opener, and the flow of granular fertilizer as viewed from the back.

[0027] Figure 7 This is a perspective view showing the support state of the shallow fertilization hose in this embodiment.

[0028] Figure 8 This is a perspective view showing the deep furrow opener between rows of the fertilizer applicator involved in this embodiment.

[0029] Figure 9 This is a top view showing a portion of the branch pipe supporting the shallow fertilization hose.

[0030] Figure 10 This is a bottom view schematically showing the positional relationship of the main parts of the fertilizer applicator involved in this embodiment in the width direction and the front-to-back direction.

[0031] Figure 11 This schematically illustrates the relationship between the fertilizer hopper, fertilizer hose, deep furrow opener, and shallow furrow opener of the mobile agricultural machinery involved in Example 2, and the flow of granular fertilizer as viewed from the rear. Figure 6 Same block diagram.

[0032] Figure 12 This is a bottom view schematically showing the positional relationship of the main parts of the fertilizer applicator involved in Embodiment 2 in the width and front-back directions.

[0033] Figure 13 This is a perspective view showing the state of the main parts of the fertilizer applicator as viewed from the side.

[0034] Figure 14 This is a side view showing the deep trencher at the end position in the width direction of the leveling rotor of this embodiment 2.

[0035] Explanation of reference numerals in the attached figures

[0036] 10…Mobile agricultural machinery, 11…Centerline in the width direction of the machine body, 12…Front wheel, 14…Rear wheel, 15A…First auxiliary wheel, 15B…Second auxiliary wheel, 16A, 16B…Ground leveling float, 16C…Sensor float, 20, 20A…Fertilizer applicator, 21…Frame, 21A…Bolt holes, 22…Fertilizer hopper, 22A…Deep fertilizer hopper, 22B…Shallow fertilizer hopper, 22C…Guard-type partition plate, 23…Fertilizer hopper assembly, 2 3A, 23B, 25A, 25B… Branch shallow fertilization hose, 24… Fertilization hose, 24A… Deep fertilization hose, 24B… Shallow fertilization hose, 24C… Shallow and deep fertilization hose, 25b… External threaded part, 26… Lower hose, 27A, 27B… Branch fertilization hose, 28… Diverter strut, 30… Deep trencher, 30A… Inner deep trencher, 30B… Outer deep trencher, 31… Trencher ground leveling plate, 32 …Ditcher body, 32A…upper end face, 32B…lower end face, 32C…hose support rod, 33, 64…ditching straw turning plate, 34…height adjustment plate, 34A…bolt insertion through hole, 35…installation bolt, 40…shallow ditcher, 41…outer end ground leveling plate (drainage ground leveling plate), 42…covering plate, 43…diverter pipe, 43A, 43B…bundling strap, 44…half-cut pipe, 44A…bolt hole, 44C…internal thread 44L…left oblique side, 44R…right oblique side, 44S…vertical connection, 45…seedling platform, 50…outer end ground leveling plate with flow guiding function (flow guiding ground leveling plate), 52…support rod, 52A…extension tube, 53…swing pin, 54…swing support rod, 60…leveling part, 63…ground leveling rotor, 65…end corner, 65A…upper side, 65B…lower side, 66…partial overlap, α1, α2, α3…angle of attack. Detailed Implementation

[0037] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Furthermore, in this embodiment 1, the mobile agricultural machinery is a rice transplanter, but the present invention is not limited to rice transplanters.

[0038] [Example 1]

[0039] like Figures 1-5As shown, the mobile agricultural machinery 10 with fertilizer applicator according to Embodiment 1 of the present invention includes a fertilizer applicator 20 for spreading granular fertilizer. The mobile agricultural machinery 10 includes: left and right front wheels 12 and rear wheels 14, which are capable of rotating in the forward direction while in contact with the surface of the field, and are arranged in a width direction orthogonal to the forward direction; a pair of left and right first auxiliary wheels 15A and second auxiliary wheels 15B, which are respectively arranged adjacent to the inside and outside of the width direction of the left and right rear wheels 14, and are respectively capable of rotating integrally with the rear wheels 14; ground leveling floats 16A and 16B, which are arranged behind the left and right rear wheels 14; and sensor float 16C, which is arranged between the ground leveling floats 16A and 16B. Figure 1 The attached figure shows a seedling platform (45).

[0040] In addition, the fertilizer applicator 20 includes: a fertilizer hopper 22 for storing granular fertilizer; a plurality of shallow furrow openers 40 for forming furrows at the lateral ridge positions near the surface of the field where the granular fertilizer falls; and a plurality of deep furrow openers 30 for forming furrows between the ridges where the granular fertilizer falls to a position deeper than the furrows formed by the shallow furrow openers 40.

[0041] In addition, such as Figure 1 As shown, the fertilizer applicator 20 includes a fertilizer hose 24 that supplies granular fertilizer from the fertilizer hopper 22 to the deep furrow opener 30 and the shallow furrow opener 40. The fertilizer hose 24 is configured to include: a deep fertilizer hose 24A; a shallow fertilizer hose 24B that diverts a portion of the granular fertilizer; and a lower hose 26 that connects to the deep fertilizer hose 24A and delivers the granular fertilizer to the deep furrow opener 30.

[0042] like Figure 6 As shown, a diversion pipe 43 is provided on the shallow fertilization hose 24B to divert granular fertilizer to the shallow furrow opener 40 at two locations.

[0043] The deep trencher 30 consists of two outer-side deep trenchers 30B on both sides of the machine body width and two inner-side deep trenchers 30A on the inner side. In this embodiment, four deep trenchers 30 are provided, and eight shallow trenchers 40 are provided.

[0044] The inner deep furrow opener 30A is configured such that, when viewed from above, it is connected to the end of the lower hose 26 at the middle position of the machine body width direction between the ground leveling floats 16A, 16B and sensor float 16C, and spreads granular fertilizer for two rows deep between the rows.

[0045] In addition, the outer end deep furrow opener 30B is configured to connect to the end of the lower hose 26 at a position further outward in the width direction of the ground leveling floats 16A and 16B than the two outer positions in the width direction of the machine body, and spread one row of granular fertilizer outward in the width direction of the ground leveling floats 16A and 16B.

[0046] Reference Figure 6 (Block diagram) The structure and configuration relationship of the above-mentioned fertilizer hopper 22, deep furrow opener 30, shallow furrow opener 40 and fertilizer hose 24 are explained.

[0047] like Figure 6 As shown, the deep fertilizer hopper 22A and the shallow fertilizer hopper 22B are set as a fertilizer hopper group 23. Multiple groups (4 groups) of fertilizer hopper groups 23 are adjacent in the width direction of the machine body and are arranged symmetrically on the left and right with the center line 11 in the width direction of the machine body as the line of symmetry.

[0048] Each fertilizer hopper assembly 23 consists of a box-shaped container, which can be used at the center of its width direction to separate or connect the deep fertilizer hopper 22A and the shallow fertilizer hopper 22B in the width direction using a shutter-type partition 22C that can be inserted and removed vertically. However, Figure 6 The 22C gate-type partition is closed.

[0049] exist Figure 6 In the middle, the granular fertilizer contained in the four deep fertilizer hoppers 22A are respectively labeled as "deep granular fertilizer D1" to "deep granular fertilizer D4" from the left side, and the granular fertilizer contained in the four shallow fertilizer hoppers 22B are respectively labeled as "shallow granular fertilizer S1" to "shallow granular fertilizer S4" from the left side.

[0050] In addition, the number of deep fertilizer hoppers 22A is the same as that of deep furrow openers 30 (4 in this embodiment), and the number of shallow fertilizer hoppers 22B is half that of shallow furrow openers 40 (4 in this embodiment). The deep fertilizer hose 24A guides the granular fertilizer from the bottom of the deep fertilizer hoppers 22A to the top of the deep furrow openers 30 (30A, 30B).

[0051] Regarding the branch shallow fertilization hose 25B, two branch shallow fertilization hoses 25A and 25B are provided for the area from the position between the shallow fertilization hopper 22B and the shallow furrow opener 40 to the shallow furrow opener 40. The upper end of the branch shallow fertilization hoses 25A and 25B is connected to the lower end of the shallow fertilization hose 24B by means of an inverted Y-shaped diverter pipe 43, which can divide the granular fertilizer into two parts and supply it to two different shallow furrow openers. The half-cut pipe 44 has: a vertical connecting part 44S, which is fitted with the external threaded part 25b; and a left beveled part 44L and a right beveled part 44R, which form the beveled sides of the inverted Y.

[0052] In addition, Figure 6 In the middle, the four deep trenchers 30A and 30B are numbered from left to right as “deep trencher I” to “deep trencher IV”, and the eight shallow trenchers 40 are numbered from left to right as “shallow trencher IA, shallow trencher IB, ... shallow trencher IVA, shallow trencher IVB”.

[0053] The seedling platform 45 is positioned at a downward angle on the rear side of the fertilizer applicator 20 in the direction of travel, and the aforementioned diversion pipe 43 is suspended and supported on the inner side of the fertilizer applicator 20 in a swingable manner. More specifically, as... Figure 7 As shown, the diversion pipe 43 is elastically suspended and supported by two upper and lower binding straps 43A and 43B on the diversion pipe support rod 28, which is fixed to the frame 21 of the fertilizer applicator 20, which extends horizontally and in the width direction of the machine body.

[0054] More specifically, the vertical suspension position of the diversion pipe 43 is set at approximately 1 / 2 of the total height of the seedling platform of the shallow fertilization hose 24B.

[0055] In addition, the aforementioned shunt pipe 43 is configured to include two... Figure 9 The half-cut tube 44 shown is clamped with the external threaded portion 25b of the lower end of one shallow fertilization hose 24B and the external threaded portion 25b of the upper end of two branch shallow fertilization hoses 25A and 25B in a state of being fitted into the internal threaded portion 44C of the half-cut tube 44, so that the bolt passes through the bolt hole 44A and is tightened with a nut.

[0056] In addition, the structure is formed as follows: the shallow furrow openers IA and IVB at both ends of the machine body width direction are designed to be easily disassembled and assembled, and the shallow fertilizer hoppers S1 and S4 at the outermost end of the machine body width direction, which store granular fertilizer for the outermost shallow furrow openers IA and IVB, support the outermost diversion pipe 43 connected to them and a shallow fertilizer hose 24B without the diversion pipe 43.

[0057] The deep furrow openers D1 and D4, located at the outer end of the machine body in the width direction adjacent to the shallow furrow openers IA and IVB, are designated as outer end deep furrow openers 30B. When there are multiples of 4 planting rows and one shallow furrow opener float is located on the outer side of the machine body in the width direction, the following configuration is formed: Figure 6 The layout of the diagram. Additionally, the output amount for shallow fertilization can be set to a small level.

[0058] like Figure 8As shown, the inner deep furrow opener 30A can adjust the height and position of spreading granular fertilizer according to the compaction of the soil, and is configured to have an angle of attack above the furrow opener (details to follow). It also has a furrow opener ground leveling plate 31 that presses the surface of the furrow opener to make it level when it moves forward, with the overflow section being higher than the upper surface of the soil in the field.

[0059] The inner deep trencher 30A has a trencher body 32, which is composed of a V-shaped semi-cylinder with an open upper end face 32A and a lower end face 32B and a front end protruding forward in the horizontal cross section. The trencher body 32 is formed as follows: the upper end face 32A and the lower end face 32B are formed to have angles of attack α1 and α2 above the trencher, and the upper end face 32A has the aforementioned trencher ground leveling plate 31.

[0060] The trencher body 32 has a four-sided cylindrical hose support rod 32C that rises upward from its front end, and a vertical height adjustment plate 34 with a bolt through hole 34A is integrally installed at its rear end.

[0061] The height adjustment plate 34 is located opposite the frame 21 side of the fertilizer applicator 20 and is provided with bolt holes 21A for the mounting bolts 35 to be screwed into the bolt holes 34A, so that the vertical position of the height adjustment plate 34 can be changed and fixed by the mounting bolts 35.

[0062] In detail, bolt holes 21A are provided in two rows on the left and right sides of the frame 21 and are equally spaced in the vertical direction. On the height adjustment plate 34, there are two rows of bolt insertion elongated holes 34A that are longer in the vertical direction and overlap with the bolt holes 21A. This allows the height adjustment plate 34 and the trencher body 32 integrated with it to be positioned in the vertical direction relative to the bolt holes 21A on the frame 21 and fixed with mounting bolts 35.

[0063] The structure of the outer end deep trencher 30B at the outer end position in the width direction of the body is similar to... Figure 8 The inner deep trencher 30A shown is largely the same, so its description is omitted.

[0064] In addition, the fertilizer applicator 20 is provided with a ditching straw turning plate 33 on the front side of the travel direction of each inner deep furrow opener 30A. The ditching straw turning plate 33 has an angle of attack that can open furrows on its surface even for hard fields.

[0065] Figure 10 The diagram schematically illustrates the positional relationship of the main parts of the fertilizer applicator 20 in the width and front-back directions. Figure 1 , 10Reference numeral 63 in the attached figure indicates a field leveling rotor. This field leveling rotor 63 is positioned in front of the deep furrow opener 30 in the direction of travel, between the filler bar and the mounting flange in front of the furrowing straw turning plate 33.

[0066] like Figure 10 As shown, among the multiple ground leveling floats 16A, 16B and sensor floats 16C arranged in the width direction orthogonal to the direction of travel of the fertilizer applicator 20, the two outer sides of the ground leveling floats 16A and 16B at both ends of the width direction (in the bottom view) are... Figure 10 The center shows the right side of ground leveling float 16A and the left side of ground leveling float 16B; viewed from above, they are... Figure 10 On the opposite side, a pair of deep trenchers 30B are provided at the outer end positions of the left and right sides, and shallow trenchers 40 are provided on both outer sides.

[0067] In addition, such as Figure 10 As shown, a plurality of shallow furrow openers 40 are provided on the outer side of the outer end deep furrow opener 30B, with the shallow furrow opener 40 located on the outer side of the machine body width direction. An outer end ground leveling plate 41 with an angle of attack relative to the forward direction is provided, and a soil covering plate 42 is provided on its front side. After granular fertilizer is spread into the furrows formed by the shallow furrow opener 40, the soil covering plate 42 covers the furrows with soil. Additionally, a furrowing straw turning and burying plate 33 is provided in front of the outer end deep furrow opener 30B.

[0068] In addition, such as Figure 4 As shown, the inner deep trencher 30A is positioned behind the first auxiliary wheel 15A so that the positions are the same in the width direction of the machine body, and the outer end deep trencher 30B is positioned behind the second auxiliary wheel 15B so that the positions are the same in the width direction of the machine body.

[0069] Regarding the mobile agricultural machinery 10 involved in this embodiment 1, when in Figure 1 When moving to the left, the rear wheel 14 and the auxiliary wheels 15A and 15B located on the outer side of its width mix the field surface. At the rear side, the furrowing straw turning plate 33 can easily open furrows on the upper surface of the field at an angle of attack that can be opened. Therefore, the inner deep furrow opener 30A located on the rear side of the furrowing straw turning plate 33 can easily form furrows into which granular fertilizer can fall.

[0070] like Figure 4 As shown, granular fertilizer is appropriately dropped into the furrow from the end of the lower hose 26 located at the front end of the inner deep furrow opener 30A and behind the furrow opener body 32.

[0071] At this time, the soil that is squeezed and spread to the left and right by the trencher body 32 will rise upwards, but it will flow outwards in the width direction due to the pressure of the trencher ground leveling plate 31. Therefore, the soil is prevented from flowing into the trencher body 32 by crossing the trencher ground leveling plate 31.

[0072] In addition, granular fertilizers from Figure 1 The shallow fertilization hose 25 shown is inserted into the shallower part of the field.

[0073] In addition to the effects described in the [Effects of Invention] section, the fertilizer applicator 20 of Embodiment 1 of the present invention can also achieve the following functions and effects.

[0074] The inner deep trencher 30A is positioned between the ground leveling floats 16A and 16B and the sensor float 16C, thus ensuring the length of the trencher in the front-to-back direction. Soil can be covered by the ground leveling floats 16A, 16B and the sensor float 16C spreading soil to their respective outer sides.

[0075] Next, the inner deep furrow opener 30A can adjust its height, thus adjusting the fertilization depth of granular fertilizer. The height can be easily adjusted according to the soil compaction, tillage depth, and root elongation of different varieties.

[0076] As described above, the number of deep fertilizer hoppers 22A is the same as that of deep furrow openers 30. In addition, the number of shallow fertilizer hoppers 22B is half that of shallow furrow openers 40. Two branch shallow fertilizer hoses 25A and 25B are set from the position between the shallow fertilizer hopper 22B and the shallow furrow opener 40 to the shallow furrow opener 40. The upper end of the branch hose 25A and 25B is connected to the lower end of the shallow fertilizer hose 24B by means of an inverted Y-shaped diverter pipe 43. This allows the granular fertilizer to be divided into two parts and supplied to two different shallow furrow openers. In this invention, the diverter pipe 43 is further positioned at half the height of the shallow fertilizer hose 24B, which is located at the antinode of the vibration with the largest amplitude due to the vibration during the operation of the agricultural machinery. Therefore, it has the effect of stably dividing the granular fertilizer passing through the hose into two parts by a larger amplitude vibration.

[0077] Furthermore, the seedling platform 45 is positioned at the rear of the fertilizer applicator 20 in a downward-facing manner, and the diversion pipe 43 is suspended and supported on the inner side of the fertilizer applicator in a swinging manner. Therefore, the diversion pipe 43 can vibrate significantly, which can achieve better distribution of granular fertilizer.

[0078] In addition, the inner deep trencher 30A is equipped with a trencher ground leveling plate 31, which has angles of attack α1 and α2 above the trencher, thus having a land leveling function to prevent soil overflow above the trencher.

[0079] Furthermore, an outer end ground leveling plate 41 is provided on the outer end deep furrow opener 30B at the outer end in the width direction, and a shallow furrow opener 40 and a soil covering plate 42 are installed on this outer end ground leveling plate 41. Therefore, in the existing 8-row rice transplanter, the small floats set on the two outer sides can be omitted, and the furrow opener and soil covering plate can be installed. Moreover, a furrowing straw turning plate 33 that further reduces the angle of attack is integrally set on each inner deep furrow opener 30A and the outer end deep furrow opener 30B at the outer end in the width direction. Therefore, even in hard fields, furrows can be reliably opened. In addition, by reducing the angle of attack, it is easy to return the straw to the field.

[0080] Furthermore, in this embodiment, the shallow furrow opener 40 at the outer end of the width direction is placed on the guide ground leveling plate 50 in the space on both sides of the machine body width direction where a micro float for one row is conventionally set. Therefore, it will not affect the adjacent seedlings. Furrow opening assistance can be achieved by using the second auxiliary wheel 15B. Granular fertilizer can also be spread to the position of the space. In addition, since the ground leveling can be performed freely by swinging, it can replace the micro float.

[0081] [Example 2]

[0082] The attached fertilizer applicator 20A involved in Example 2 (refer to) Figure 11 , Figure 12 The mobile agricultural machinery of the same basic structure as in Embodiment 1 includes: left and right front wheels 12 and rear wheels 14, which are capable of rotating in the forward direction while in contact with the surface of the field, and are arranged in a width direction orthogonal to the forward direction; a first auxiliary wheel 15A and a second auxiliary wheel 15B, which are coaxially arranged with the rear wheel 14 on the inner and outer sides of the rear wheel 14 in the width direction; a sensor float 16C, which is located in the middle of the width direction between the left and right rear wheels 14, and is located behind the rear wheel 14; and a plurality of ground leveling floats 16A and 16B, which are arranged on both sides of the sensor float in the width direction. The structure of the fertilizer hopper 22, the deep furrow opener, the shallow furrow opener, and the fertilizer hose connecting them is different from that of the fertilizer applicator 20 in Embodiment 1, and, as Figure 13 As shown, an outer end ground leveling plate (hereinafter referred to as the flow guiding ground leveling plate) 50 is provided with a flow guiding function.

[0083] Here, the structure of the ground leveling plate 50 is the same as that of the outer end ground leveling plate 41 in Embodiment 1, but it is equipped with the following swing-type shallow trencher 40 and swing-type soil covering plate 42. Therefore, different reference numerals are used.

[0084] Figure 11 This is a schematic diagram illustrating the relationship between the fertilizer hopper, fertilizer hose, deep furrow opener, and shallow furrow opener of the mobile agricultural machinery involved in Example 2, as well as the flow of granular fertilizer. Regarding Example 2, [the following will be discussed]... Figure 6 In the embodiment 1 shown, the shallow furrow openers IA and IVB at both ends in the width direction and the shallow fertilizer hoppers 22B (2 units) for shallow granular fertilizer S1 and S4 are removed, and granular fertilizer D1 and granular fertilizer D4 are supplied from the deep fertilizer hoppers 22A for deep granular fertilizer D1 and D4 at both ends in the width direction to the deep furrow opener I and the shallow furrow opener IB, as well as the deep furrow opener IV and the shallow furrow opener IVA.

[0085] In addition, Figure 11 In the middle, the shallow trenchers 40 are respectively labeled as "shallow trencher IB, ... shallow trencher IVA" from left to right.

[0086] In addition, the deep fertilizer hoppers 22A and 22A at both ends of the machine body width direction deliver granular fertilizer D1 and granular fertilizer D4 through deep and shallow fertilizer hoses 24C.

[0087] In detail, the configuration is as follows: the diversion pipe 43 is connected to the deep and shallow fertilization hose 24C, and the granular fertilizer flows from here through two branch fertilization hoses 27A and 27B, which are the same as the branch shallow fertilization hoses 25A and 25B in Example 1, to the deep furrow opener I and the shallow furrow opener IB, as well as the deep furrow opener IV and the shallow furrow opener IVA, respectively.

[0088] Other structures in Example 2 Figure 8 The structure of Embodiment 1 shown is the same, therefore, the description is omitted using the same reference numerals.

[0089] like Figure 10 As shown, the fertilizer applicator 20A according to Embodiment 2 has the following features: a floating mechanism; two shallow furrow openers provided at the outer end in the width direction of the machine body, which are not multiples of 4; an outer deep furrow opener 30B provided further outward, which provides 50% of the amount of granular fertilizer applied (discharged) compared to the other deep furrow openers; and, as described above, a field leveling rotor 63 for leveling the field edge. Furthermore, the amount of granular fertilizer applied to the shallow furrow opener 40 can be changed to 100% or 50% relative to the amount applied to the deep furrow opener 30.

[0090] like Figure 14As shown, the deep furrow opener 30B on the outer side in the width direction has a furrowing straw turning plate 64 that bites into the field to form furrows, and the furrowing straw turning plate 64 has an end corner 65.

[0091] The end corner 65 of the ditching straw turning plate 64 is positioned outside the outer end of the machine body of the leveling rotor 63 in the width direction, and when viewed from the side of the machine body, it has a partial overlap 66 in the front-rear direction relative to the outer end in the width direction. Furthermore, the end corner 65 has an upper side 65A that is inclined upwards towards the rear (angle of attack α3) and a lower side 65B that is inclined downwards towards the rear (angle of attack α2). The angle of attack of the lower side 65B relative to the edge of the field is smaller than that of the front side in the machine body's direction of travel (α3 > α2). In addition, Figure 14 In the diagram, α1 and α2 represent the relationship between... Figure 8 The angles of attack are the same for α1 and α2.

[0092] As described above, if the end corner 65 of the ditching straw turning plate 64 is configured to have a partial overlap 66 relative to the field leveling rotor 63, the angles of attack α3 and α2 of the end corner 65 of the ditching straw turning plate 64 can be minimized to turn over and bury the straw.

[0093] In addition, the lower side 65B of the end corner 65 has a smaller angle of attack α2 relative to the edge of the field than the upper side 65A, so furrows can be easily dug even if the field is hard.

[0094] Furthermore, as described above, the ditching straw turning plate 64 of the outer end deep ditcher 30B reduces the ground angle α3 and α2 of the ditching straw turning plate 64 by means of the partial overlap 66, forming a structure that does not bear straw on the underside of the leveling rotor 63 at the edge of the field during agricultural machinery operation, which can easily achieve straw turning and burying.

[0095] Here, the outer end of the fertilizer applicator's application range can be set as... Figure 1 , 7 The two ends of the machine body width direction of the ground leveling rotor 63 shown.

[0096] Industrial utilization potential

[0097] Mobile agricultural machinery that can be used in the agricultural field with fertilizer applicators.

Claims

1. A mobile agricultural machine with a fertilizer applicator, comprising: left and right front wheels and rear wheels, which are capable of rotating in a forward direction while in contact with the surface of the field, and arranged in a width direction orthogonal to the forward direction; a sensor float disposed at the midpoint of the machine body width direction between the left and right pairs of rear wheels, and positioned further back than the rear wheels; and a plurality of ground leveling floats disposed on both sides of the sensor float in the machine body width direction, wherein the mobile agricultural machine with a fertilizer applicator spreads granular fertilizer, characterized in that, The fertilizer machine has the following features: Fertilizer hopper, used for storing granular fertilizer; Multiple shallow furrow openers are used to create furrows on the side ridges at each planting location so that granular fertilizer falls onto the surface of the field. Multiple deep furrow openers are used to create furrows between rows to allow granular fertilizer to fall to a depth greater than that created using the shallow furrow openers; and The fertilizer applicator hose delivers granular fertilizer from the fertilizer hopper to the top of both the deep furrow opener and the shallow furrow opener. The fertilizer hoppers are composed of multiple deep fertilizer hoppers and multiple shallow fertilizer hoppers. The fertilizer application hose consists of a number of deep fertilizer application hoses equal to the number of deep fertilizer hoppers, and a number of shallow fertilizer application hoses equal to the number of shallow fertilizer hoppers. The deep fertilization hose is configured to convey granular fertilizer from the connected deep fertilization hopper to the deep furrow opener, and the shallow fertilization hose is configured such that its upper end is connected to the shallow fertilization hopper from below at the same position in the width direction of the machine body, conveying granular fertilizer from the shallow fertilization hopper to the shallow furrow opener.

2. The mobile agricultural machinery with a fertilizer applicator according to claim 1, characterized in that, The number of deep fertilizer hoppers is the same as that of the deep furrow openers. In addition, the number of shallow fertilizer hoppers is half that of the shallow furrow openers. Starting from the position between the shallow fertilizer hopper and the shallow furrow opener of the shallow fertilizer hose, a branch pipe with an inverted Y-shape is formed on the lower side. The area extending downwards from the inverted Y-shape of the branch pipe to the shallow furrow opener is defined as two branch shallow fertilizer hoses. The upper end of the inverted Y-shape of the branch pipe is connected to the lower end of the shallow fertilizer hose, which can divide the granular fertilizer into two parts and supply it to two different shallow furrow openers. The downward-facing left and right inclined sides of the inverted Y-shape of the branch pipe are both set at an angle of 45 degrees or more to the ground.

3. The mobile agricultural machinery with a fertilizer applicator according to claim 2, characterized in that, The seedling platform is positioned at the rear of the fertilizer applicator in the direction of travel, tilted downwards. The diversion pipe is suspended and supported on the inner side of the fertilizer applicator in a swinging manner.

4. The mobile agricultural machinery with a fertilizer applicator according to claim 2, characterized in that, The shallow furrow openers at both ends of the machine body width direction are designed as the outermost shallow furrow openers that can be easily disassembled and assembled. The outermost shallow fertilizer hopper for storing granular fertilizer for the outermost shallow furrow opener is structured as follows: it supports the outermost diversion pipe connected to it and a shallow fertilizer hose that does not have the diversion pipe, which can be easily replaced. The configuration is as follows: the deep ditchers at both ends of the machine body width direction adjacent to the outermost shallow ditcher are designated as the outermost deep ditchers, and the amount of granular fertilizer discharged from the outermost deep fertilizer hopper corresponding to the outermost deep ditcher is 50% of the discharge amount of other deep fertilizer hoppers.

5. The mobile agricultural machinery with a fertilizer applicator according to claim 1, characterized in that, The amount of granular fertilizer applied to shallow trenchers can be changed to 100% or 50% compared to the amount applied to deep trenchers.

6. The mobile agricultural machinery with a fertilizer applicator according to any one of claims 1 to 5, characterized in that, The mobile agricultural machinery has two shallow furrow openers with floats on the outermost two sides in the width direction of the machine body, and a deep furrow opener with 50% more fertilizer application capacity than other deep furrow openers on the outer side.

7. The mobile agricultural machinery with a fertilizer applicator according to any one of claims 1 to 5, characterized in that, The mobile agricultural machinery also has a field leveling rotor for leveling the field edges. The deep furrow opener's ditching straw turning plate has end corners. The deep furrow opener is configured such that the end corner of the furrowing straw turning plate is located on the outer side of both ends of the machine body of the field leveling rotor in the width direction, and overlaps with the two ends in the front-rear direction when viewed from the side of the machine body. Furthermore, the end corner has an upper part that is inclined in a way that rises backward from the end and a lower part that is inclined in a way that falls backward from the end. The angle of attack of the lower part relative to the ground is smaller than that of the front side in the direction of the aircraft's travel.

8. The mobile agricultural machinery with a fertilizer applicator according to any one of claims 1 to 5, characterized in that, The deep fertilizer hopper and the shallow fertilizer hopper are set as a fertilizer hopper group. Multiple fertilizer hopper groups are arranged adjacent to each other in the width direction of the agricultural machinery, and a gate-type partition plate is provided to separate the deep fertilizer hopper and the shallow fertilizer hopper arranged in the width direction of the machine body.

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