JP2016029924A - Fertilizing/tilling/listing device of tractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a fertilizing machine and a tilling rotary safely on a tractor.SOLUTION: In the fertilizing/tilling/listing device of a tractor, a first attachment hitch 60 including upper/lower engagement part 58, 59 is attached on a three-point link mechanism 5 constituted by right/left lower links 3, 3 and a central top link 4 at a rear part of a tractor body 1 and a support frame 8 of a granule delivery hopper 9 is engaged with upper/lower engagement parts 58, 59 of the first attachment hitch 60. Furthermore, a second attachment hitch 63 including upper/lower engagement parts 61, 62 is arranged at a rear part of the support frame 8 and a tilling/listing part A is attached while engaged with the upper/lower engagement parts 61, 62 of the second attachment hitch 63. The first attachment hitch 60 arranged at the support frame 8 of the granule delivery hopper 9 is detachable.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a tractor fertilizer tillage device in which a fertilizer and a tiller are mounted on a tractor.

The tractor is an agricultural traveling vehicle, and is used with various ground working machines such as a fertilizer applicator and a rotary installed at the rear of the machine.
For example, Patent Document 1 describes a configuration in which a fertilizer is attached to and detached from a tractor. Attach the caster stand with wheels to the left side of the fertilizer machine, attach the handle stand to the right side of the machine, and lift the handle stand side and tilt the machine so that the mounting bracket of the fertilizer machine is attached to the mounting bracket on the tractor side. I have to.

  Moreover, although the state which attached the fertilizer and the rotary to the tractor is shown by patent document 2, it is not described about attachment or detachment of a fertilizer or a rotary.

JP-A-10-248338 JP 2013-9631 A

  Ground working machines such as fertilizer and tillage rotary mounted on the tractor are heavy and difficult to lift and attach to the three-point link at the rear of the tractor, usually with two workers. As in Patent Document 1, the body supported by the left caster stand is lifted by lifting the right handle stand, the fertilizer machine is tilted, and the mounting hinge is hooked on the mounting bracket provided on the front bumper of the tractor, and then returned to the horizontal state to be used. Although it is considered, it is dangerous to perform the attaching / detaching work in an unstable state.

  Therefore, an object of the present invention is to make it possible to safely attach a fertilizer applicator and a tillage rotary to a tractor.

The problems of the present invention are solved by the following technical means.
In the first aspect of the present invention, a first attachment hitch 60 having upper and lower engaging portions 58 and 59 is composed of left and right lower links 3 and 3 at the rear of the tractor vehicle body 1 and a central top link 4. The second attachment having the upper and lower engaging portions 61 and 62 at the rear of the support frame 8, with the support frame 8 of the grain feeding hopper 9 engaged with the upper and lower engaging portions 58 and 59 of the first attachment hitch 60 A hitch 63 is provided, and a fertilizer tillage device for a tractor formed by engaging and attaching the tilling portion A to the vertical engaging portions 61 and 62 of the second mounting hitch 63 is provided.

The invention according to claim 2 is the fertilizer tillage device for a tractor according to claim 1, wherein the first mounting hitch 60 provided on the support frame 8 of the grain feeding hopper 9 is removable.
The invention described in claim 3 is characterized in that a grain feeding hopper 9 is arranged high on the support frame 8 and is connected in a state in which a part of the tilling part A enters a lower part of the grain feeding hopper 9. It is set as the fertilizer tilling apparatus of the tractor of claim | item 1.

  According to the first aspect of the present invention, a support frame for the grain feeding hopper 9 mounted on a carriage by an operator attaching a relatively light first mounting hitch 60 to the three-point link mechanism 5 provided at the rear of the tractor vehicle body 1. 8 is engaged with the upper and lower engaging portions 58 and 59 of the first attachment hitch 60 from the rear, and the tillage rotary 6 mounted on the carriage is engaged with the second attachment hitch 63 attached to the support frame 8. By attaching it, the fertilizer tillage device for tractor can be configured by one worker.

In the invention according to claim 2, in addition to the effect of claim 1, if the second mounting hitch 63 is removed, a fertilizer for a tractor without the tilling rotary 6 can be obtained.
In the invention of claim 3, in addition to the effect of claim 1, the tillage portion A can be assembled close to the grain feeding hopper 9, and a fertilizer tillage device for a short tractor is constructed. It is possible to turn around.

It is a side view of a vertical fertilizer applicator. It is a rear view of a vertical fertilizer applicator. It is a side view of the vertical fertilizer application device which shows the middle of assembly of a fertilizer application device. It is a side view of the vertical fertilizer applicator which shows the middle of an assembly of a tilling part. It is a rear view of a cultivation rotary part. It is a side view of a cultivation rotary part. It is a perspective view of a spreading rod set.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In this specification, the left and right directions in the forward direction of the tractor are referred to as left and right, respectively, the forward direction is referred to as forward, and the reverse direction is referred to as rear.

  A three-point link mechanism 5 comprising a lower link 3 and a top link 4 that are connected to a rear portion of the tractor vehicle body 1 by a lifting rod 13 that is connected to a lift arm 2 and moved up and down is configured. The first mounting hitch 60 is pivotally attached to the end with upper and lower pins, and the support frame 8 with the grain feeding hopper 9 attached is engaged and connected to the upper and lower engaging portions 59, 59 of the first mounting hitch 60 to move up and down. The bracket 38 of the rod 13 and the telescopic rod 39 of the support frame 8 are connected by pins.

  The upper and lower engaging portions 61 and 62 of the first mounting hitch 60 are constituted by a fixing hook and a rotating hook, and bite and fix the connecting shaft on the support frame 8 side. The upper and lower pivot hooks are pivoted by a fixed lever 64.

The support frame 8 is a fertilizer B in which a pair of left and right grain feeding hoppers 9 and 9 are fixed to an upper portion, and a second mounting hitch 63 having the same configuration as the first mounting hitch 60 is fixed to a lower end portion.
The connection pins on the tillage rotary 6 side are engaged with the upper and lower engagement portions 61 and 62 of the second mounting hitch 63 so as to be integrally connected. Reference numeral 65 denotes a fixing lever for the upper and lower engaging portions 61 and 62.

A tiller 7 is provided at the rear of the tillage rotary 6 to constitute a tillage part A.
Reference numerals 10 and 10 denote rear wheels of the vehicle body 1, 11 a fender, and 12 a cabin.
As shown in FIG. 3, the fertilizer B is attached to the tractor vehicle body 1 by attaching a first attachment hitch 60 to the three-point link mechanism 5 and attaching the support frame 8 of the fertilizer B placed on the mount 66 to the first attachment hitch. The brackets 38 of the elevating rod 13 and the telescopic rods 39 of the support frame 8 are coupled by engaging the upper and lower engaging portions 58 and 59 close to each other from the rear of 60. Further, as shown in FIG. 4, the tilling portion A is brought close to the second mounting hitch 63 of the fertilizer application device B from the rear and engaged with and connected to the vertical engaging portions 61 and 62. The input shaft 36 of the tillage section A is connected to the PTO shaft 35 on the tractor vehicle body 1 side via the input extension shaft 37. In addition, when connecting the tilling part A directly to the first attachment hitch 60, the input extension shaft 37 is not necessary.

The tillage rotary 6 has a so-called center drive configuration in which a transmission case 16 for driving the left and right tillage shafts 15 and 15 is provided in a suspended state at the center of the tillage width.
As shown in FIGS. 5 and 6, the left and right tillage shafts 15, 15 are detachably fitted to the first tillage shaft 15 a close to the transmission case 16, and the tip-side different diameter portion of the first tillage shaft 15 a. The first tillage shaft 15a is spline-fitted to the tillage output shafts 17 and 17 projecting left and right from the transmission case 16 so as to be capable of power transmission. The rotary power of the first tillage shaft 15a is transmitted to the second tillage shaft 15b through the joint portion, and the second tillage shaft 15b is prevented from being detached in the axial direction by a long bolt member 18.

  A claw holder 19 is integrally attached by welding around the first tillage shaft 15a, and short boss bodies 21 and 21 are disposed on the second tillage shaft 15b. It is configured to be fitted and slidable, and to be slid in the axial direction of the second tillage shaft 15b and fixed by fastening portions 22 and 22 at predetermined positions. Tillage claws 23 and 23 are detachably attached to the claw holders 19 and 20.

  A long boss body (cylindrical body) 26 provided with a pair of tilling disks 25, 25 and a pair of tilling claws 23 arranged between the pair of tilling disks 25, 25 is slid on the second tilling shaft 15b. It is configured such that it can be freely inserted and fixed with the fasteners 27, 27. More specifically, a plurality of mounting plates 28a to 28d (in the example shown in the figure) are twisted slightly with respect to a plane perpendicular to the rotation shaft 15 on the circumferential surface of the long boss body (tubular body) 26 at a predetermined interval (for example, 200 mm). (4 sheets) are arranged at equal intervals in the radial direction while being in phase, and the tilling disk 25 is mounted on these mounting plates 28a to 28d with 4 pieces of divided spiral blades 25a to 25d in the form of spiral blades.

  The long boss body (tubular member) 26 is provided with a cultivation disk 25 composed of the spiral blades 25a to 25d having the above-described configuration so as to face each other at a predetermined interval (for example, 200 mm). The rotation of the pair of tilling disks 25 and 25 is provided with a function of tilling the soil and a function of bringing the tilling soil to the opposite side, that is, the inside of the interval between the left and right tilling disks 25 and 25. That is, the soil is pushed out to the center between the tilling disks 25 and 25 which oppose the soil by the driving action of the divided spiral blades 25a to 25d.

  In addition, a plurality of claw holders 29 and 29 are disposed in the middle portion of the long boss body (tubular member) 26, and the tilling claws 23 and 23 are detachably attached to the claw holders 29 and 29. These tilling claws 23, 23 are so-called nail claw shapes having curved front end sides, and are provided in a state where the curved front end sides face each other inwardly. Therefore, the tilling function is provided inside the interval by the tilling claws 23, 23 in the interval portion of the pair of left and right tilling disks 25, 25. Combined with the above-mentioned soiling function of the left and right tillage disks 25, 25, the tilled soil is cultivated while being brought closer to the center side of the space between the left and right tillage disks 25, 25.

  The tillage rotary 6 configured as above cultivates the soil by sequentially driving the tilling claws 23, 23... Into the soil by the rotation of the first and second tilling shafts 15a, 15b. In addition, the opposing disks 25, 25 rotate in the same manner, and are in a relation of opposing left and right, and the spiral blades 25a to 25d arranged in a spiral form move the soil toward the opposing spacing portion. Tillage.

  The pair of discs 25 and 25 are arranged on the second tillage shaft 15b. However, the discs 25 and 25 facing the first tillage shafts 15a and 15a located on the left and right sides of the transmission case 16 as a pair. The mounting plates 28Ca to 28Cd are directly provided so as to correspond to the two-piece molding.

  Further, a hitch 32 is provided from the tillage frame 31 located on the tillage cover 30 covering the upper side of the tillage rotary 6 to the rear, and the tool bar 33 is attached to the hitch 32. The tool bar 33 can be provided with the cage forming device 7 or steps or tail wheels.

  The ridge forming machine 7 is provided with a plurality of pairs of slab cultivating plates 40, 40 across the tillage width (two pairs are arranged in the illustrated example to form a two ridge forming form), and can be moved laterally along the toolbar 33. It is possible to adjust the width of the wrinkles and the distance between the forming wrinkles. The fertilizer applicator B is arranged along the tool bar 42 supported via the support frame 8 above the tilling frame 31, the hitch 32, and the like, and is configured so that the mounting position can be adjusted in the horizontal direction.

  Here, the construction of the tilling portion A is such that a tilling rotary 6 and a tiller 7 for cultivating this tilling soil are attached to the rear of the tractor vehicle body 1, and an upper rear portion of the tilling rotary 6 is disposed at the rear side. In the upper part of the molding machine 7, feeding devices 51, 51 for feeding powdery substances from the grain feeding hoppers 9, 9 are provided at both the left and right positions mainly for applying fertilizer. As the vehicle body 1 advances, the soil surface is cultivated by the cultivating rotary 6, and the cultivated soil surface is cultivated by the culverter 7 to form the culm. A powdered fertilizer fed from the powder feeding hopper 9 is applied to this koji while stirring with the soil. In the application of such powders and granular materials, the powder feeding hopper 9 is mounted on the left and right sides above the rear molder 7 so that the feeding of the powdered material (powdered fertilizer) is applied vertically downward. To do.

  In the working machine form that is applied to the vertical soil surface while mixing the powdery material (powder fertilizer), the vertical rotary unit 6 and the vertical molding machine 7 that receives the vertical soil and performs the vertical molding on the rear side of the tractor body 1. , And a vertical fertilizer applicator provided with a powder feeding hopper 9 that feeds a powdered material to the left and right side positions at the upper part of the rear molder 7. That is, the soil surface is cultivated by the rotary rotary 6 as the vehicle body 1 advances, and the cultivated soil surface is cultivated and culled with the culm molding machine 7, and the powder form fed from the powder feeding hopper 9 is formed on the culm surface. Although the objects are applied, the hoppers 9 are arranged so as to be shifted to the left and right, so that the capacity of the hoppers 9 can be increased, and operations such as supply of granular materials are facilitated.

Next, in the said Example, it is set as the structure which spreads locally the powder supply port 47a of the hose 47 which flows down and guides the powdery material (powder fertilizer) delivered from the powder delivery hopper 9 to a farm field by the cylindrical basket 48. .
Each of the feeding hoppers 9 and 9 has a substantially square shape in plan view and has a lid 50 that can be opened and closed. At the bottom of each feeding hopper 9, 9, feeding devices 51, 51 are provided for feeding the powdered or granular material of the hopper 9, 9 by driving a feeding roll with a motor. Each delivery device 51 is provided with delivery outlets 53, 53 at three locations, and the hoses 47, 47 are connected to the delivery outlets 51, 47, respectively. Through the field.

The cylindrical rod 48 is configured to receive a tip of each of the hoses 47 and 47 connected to the left and right feeding hoppers 9 and 9 and provided to a pair.
As shown in FIG. 7, the pair of cylindrical rods 48, 48 are horizontally disposed between the stays 49 a, 49 a... Extending forward and downward from the frame of the tilling rotary 6 on the front side of the tilling rotary 6. It is supported by the support rod 49b.

  The powder P (powder fertilizer) from the cylindrical rod 48 falls substantially downward and is sprayed within the interval between the opposing left and right tillage disks 25, 25. By means of the locking bolt nut 55 of the brackets 48a, 48a in which the cylindrical rods 48, 48 are passed through the support rod 49b. The upper portions of the cylindrical rods 48 are formed in an expanded shape so that the lower end of the hose can be easily inserted.

The operation of the above example will be described.
The powdery material (powdered fertilizer) fed from the feeding hoppers 9 and 9 is locally sprayed through the feeding means H. The soil surface cultivated by the tillage rotary 6 is formed upright by the culverter 7, and the cultivating by the tillage rotary 6, that is, tilling the soil by cultivating the soil by the cultivating action of the cultivation claws 23, 23. Between the disks 25, 25, all of the powdered fertilizer that is locally sprayed from the feeding means H is stirred. Further, the tilling action of the tilling claws 23, 23... Is performed outside the opposing disks 25, 25. Thereafter, a predetermined strip (two strips in the illustrated example) of ridges R is formed by the subsequent ridge forming machine 7.

In a specific fertilizer, low-cost work can be realized by distributing locally between the tilling disks 25 and 25 by the feeding means H.
The powdery material (powder fertilizer) from the feeding means H is agitated between the opposing tilling disks 25 and 25 in the straw to be formed, and distributed between the tilling disks 25 and 25 in the cross section of the straw.

  In the above-described embodiment, the so-called 2 前 記 specification has been described. However, in addition to the 3 畝 specification, it can be similarly applied to 4 畝 or more, and includes a diffusion rod 46 and a pair of cylindrical rods 48 and 48 along the support rod 49b. Scattering sets can be moved individually to the right and left to adjust to the appropriate position.

  Although the fertilizer B was attached to the first attachment hitch 60 and the tilling part A was attached to the second attachment hitch 63, the fertilizer B was applied to the first attachment hitch 60. Can be used as a fertilizer, or can be used as a vertical fertilizer by attaching only a vertical fertilizer to the first mounting hitch 60. Moreover, the working machine attached to the second attachment hitch 63 may be a weeding machine other than the tilling part A.

  Moreover, although the 1st attachment hitch 60 and the 2nd attachment hitch 63 demonstrated as the same structure, another structure may be sufficient.

DESCRIPTION OF SYMBOLS 1 Tractor vehicle body 3 Lower link 4 Top link 5 Three-point link mechanism 8 Support frame 9 Grain feeding hopper 58 Upper engagement part 59 Lower engagement part 60 First attachment hitch 61 Upper engagement part 62 Lower engagement part 63 Second attachment Hitch A

Claims (3)

  The first mounting hitch (60) having the engaging portions (58) and (59) at the top and bottom is composed of the left and right lower links (3) and (3) at the rear of the tractor vehicle body (1) and the center top link (4). It is attached to the three-point link mechanism (5), and the support frame (8) of the grain feeding hopper (9) is engaged with the upper and lower engaging portions (58), (59) of the first attachment hitch (60) for further support. A second mounting hitch (63) having upper and lower engaging portions (61) and (62) is provided at the rear portion of the frame (8), and the upper and lower engaging portions (61) and (62) of the second mounting hitch (63) are provided. A fertilizer plowing device for a tractor formed by engaging and attaching a tilling portion (A) to the tractor.   The tractor fertilizer tillage device according to claim 1, wherein the first mounting hitch (60) provided on the support frame (8) of the grain feeding hopper (9) is removable.   The grain feeding hopper (9) is disposed high on the support frame (8), and a part of the tillage part (A) is connected in a state of entering the lower part of the grain feeding hopper (9). Item 2. A tractor fertilizer plowing apparatus according to Item 1.

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