JPH0771403B2 - Fertilizer rice transplanter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a working machine portion of a fertilizer application planter that simultaneously performs seedling planting work and fertilizer application work.

[Prior Art] A seedling planting device in which a seedling mounting table, a planting implement, etc. are attached to a planted transmission case having a built-in transmission mechanism, and a fertilizer fed from a main body provided above the planted transmission case. There is a riding-type fertilizer rice transplanter that is equipped with a working machine part that is assembled with a fertilizer applicator that is guided to a corner fertilizing position in the field with a fertilizing pipe. .

[Problems to be Solved by the Invention] In the above conventional fertilizer application planter, when the fertilizer application device is arranged in front of the seedling mounting table, the fertilizer conduit may be brought close to the planting position of the seedling because of the transmission case with planting. The length of the fertilizer-free area where the fertilizer could not be given even after planting seedlings was long. In order to solve this problem, if the front-to-back space between the seedling mounting table and the planting transmission case is widened and the fertilizer conduit is passed through this space, the entire length of the machine becomes longer and the turning radius becomes larger. was there.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following configuration. That is, the fertilizer transplanter according to the present invention is a fertilizer transplanter in which the feeding section of the fertilizer application is arranged in front of the planting transmission case of the seedling planting apparatus, and the planting transmission case is provided with a space portion, and the space portion is provided. In addition, the fertilizer is fed through the fertilizer conduit that guides the fertilizer fed from the feeding portion to the vicinity of the planting position.

[Operation] By providing the fertilizer conduit through the space provided in the planted transmission case, the fertilizer application position can be brought close to the planting position, and the overall length of the machine can be made short and compact.

[Embodiment] FIGS. 1 to 5 show a fertilized rice planting machine for 6-row planting according to an embodiment of the present invention.
A work device portion 4 for rice planting and fertilization is attached to a link device 3 provided at a rear portion of the traveling vehicle body 2.

The traveling vehicle body 2 forms a T-shaped frame in a plan view with a vertical pipe 6 in the front-rear direction that passes through the center of the vehicle body and a horizontal pipe 7 that is orthogonally integrated with the rear end of the vertical pipe. A mission case 10, a differential case 11, an engine 12, etc. are provided on the top. The engine 12 is installed on an engine base 12a fixed to the upper surface of the vertical pipe 6 near the rear part. Front wheel support cases 15 and 15 are provided at the ends of the front axle cases 14 and 14 projecting from the differential case 11 to the left and right sides, and the front wheels 16 and 16 are pivotally supported at the lower ends thereof. In addition, a rear wheel support case is provided at both ends of the horizontal pipe 7.
17, 17 are provided on which rear wheels 18, 18 are pivotally supported.
The rear wheel support cases 17 and 17 are transmitted from the mission case 10 via rear wheel transmission shafts 19 and 19 which are provided so as to be exposed on the left and right side portions of the vehicle body.

The working unit drive output extracted from the mission case 10 is transmitted to the inter-stock transmission 21 via the planting clutch 20 as shown in FIG.
Output to the shaft 23 and the fertilizer applicator drive rod 24. The planted clutch 20 is a clutch that stops the secondary shaft 27 at a fixed position when the primary shaft 26 stops rotating, and the cycle of the stop position is one rotation (360 degrees) or 1/2 rotation (180 degrees). Setting it to is convenient when linking various levers or when changing the number of shares. Note that FIG. 3 (b) is a view showing a developed shape of the clutch plate of the 1/2 rotation clutch.
When the planted clutch 20 is a 1/2 rotation clutch, the switching gear ratio of the inter-stock transmission 21 is set to 1: 1/2.

A body 30 is put on these chassis. A cockpit 32 is installed on an engine room 31 in which the engine 12 and the like are housed, and a steering wheel 35 is mounted on a steering post cover 34 projecting upward from the front end of the vehicle body.

The link device 3 is a support frame that is erected on the horizontal pipe 7.
An upper link 41 and a lower link 42 are rotatably supported by 40, and a connecting frame 44 having a rectangular shape in rear view is attached to the rear portions of these upper and lower links. Then, the working machine portion 4 is attached to the connecting frame 44.
Is mounted so that it can be rolled. The hydraulic cylinder 47, which is the driving means of the link device 3, has a base portion 47a pivotally attached to the back surface of the engine base 12a, and a piston rod 47b attached to the tip end portion of an arm 48 that is vertically provided integrally with the base portion of the upper link 41. It is connected. This hydraulic cylinder 47 is controlled to expand and contract by a hydraulic valve 49 attached to the lower portion of the connecting frame 44, and by expanding and contracting the cylinder, the connecting frame 44 is moved up and down while being held in a substantially fixed posture, and attached to this. Work machine part 4
Can be raised and lowered.

The working machine part 4 has a transmission mechanism inside as a seedling planting device and has a planting transmission case 50 which is transmitted from the traveling vehicle body side via the PTO shaft 23, and a front side above the planting transmission case. It is equipped with a seedling placing table 51 that is inclined so as to be on the upper side, and two sets of planting tools 52 per one row, and the seedling placing table 51 reciprocates left and right to produce seedlings on the table. The planting device 52 moved up and down while drawing a predetermined locus while supplying the seedlings one by one to the predetermined seedling taking-out port, and the seedlings supplied to the seedling taking-out port were provided at the tip of the planting device. It is designed to be held by the planting claws 52a and planted in the field. When the seedling stand 51 reaches the end of the left and right stroke and finishes supplying the seedlings for one horizontal row to the seedling take-out port, the belt-type seedling feeding device 54 operates to transfer the seedlings downward by one row. To do.

Further, the fertilizer application device 60 includes a fertilizer tank 61 for storing fertilizer.
And a feeding device 62 for feeding the fertilizer in the fertilizer tank downward.
And a fertilizer conduit 63 that guides the fertilizer fed from the feeding section by the feeding machine to the fertilizer ditch formed in the field by the later-described grooving device 64. The main body portion including the fertilizer tank 61 and the feeding machine 62 is provided at the rear part of the cockpit 32, and the lower end of the hopper 62a of the feeding machine faces the front end of the fertilizer conduit 63. The fertilizer conduit 63 extends rearwardly from the fertilizer conduit 63 and then the seedling mount 51
Of the fertilizer application is provided along the back surface (front surface) of the fertilizer, and a fertilization port facing the fertilization groove is provided at the lower end portion thereof. The feeding machine 62
Is driven by the fertilizer applicator drive rod 24.

FIG. 4 and FIG. 5 are an external perspective view and a developed cross-sectional view of the planted transmission case 50. The planted transmission case 50 has a pipe-shaped lower housing 80 which is long in the left and right and an upper rear portion thereof. Upper housing 81, a hollow connecting portion 82 and a connecting plate 83 for connecting both housings, and three branch cases extending rearward from the central portion and the left and right end portions of the lower housing 80.
It consists of 85, and. Then, a total of six rotary cases 86 mounted on both sides of the rear end of each branch case 85 are provided with a pair of the planting tools 72. This planted transmission case 50
In the upper and lower housings 80, 81, there is formed a space 87 that is surrounded by the hollow connecting portion 82 and the connecting plate 83 and penetrates vertically. In this space 87, two central fertilizer conduits 63, 63 are provided. It has been inserted. As shown in FIG. 4, six fertilizer conduits 63, ...
Are placed on both sides of the branch case 85, ...
Each fertilizer conduit is attached at the same angle, and each fertilizer application port is provided at a position in the traveling direction.

An input portion 80a is provided at the center of the lower housing 80, and the rear end portion of the input shaft 90 connected to the PTO shaft 23 is inserted therein. Bevel gear 9 from this input shaft 90 to planting tool drive shaft 91
Driven through 3, 94, but with input shaft 90 and bevel key 93
Since the fixed position clutch 95 is interposed between them, when the rotation of the input shaft 90 stops, the planting instrument drive shaft 91 stops at the fixed position. Chains 98, which are transmitted to the rotary case 86, are hung on sprocket wheels 97, ... Attached to the center portion and the left and right ends of the planting tool drive shaft 91.

On the other hand, inside the upper housing 81, there are a lead cam shaft 101 rotatably supported by bearings and a spiral groove 100 formed on the outer peripheral portion, and both end portions that are slidable in the axial direction and project outside the housing. A lateral movement rod 102 integrated with the bottom surface of the seedling stand 51 is provided. The lead cam shaft 101 is transmitted from the planting tool drive shaft 91 to the lead cam shaft 100 via the counter shaft 104 in the hollow connecting portion 82.
When is rotated, the lead claw 105 moves along the lead groove 100, so that the lateral movement rod 102 moves in the left-right direction together with the seedling mounting table 51. The seedling table support arms 107 and 107, which connect and integrate the lateral movement rod 102 and the seedling table 51, move in a space between the pair of manure conduit groups in the center and the pair of left and right manure conduit groups. In this way, by arranging the connecting portion between the lateral movement rod 102 and the seedling placing table 51 toward the center, the lateral movement rod 102 can be shortened, which is advantageous in terms of weight reduction and compactness.

On the lower side of these working machine parts 4, a center float 71 and a pair of left and right side floats 72, 72 are rotatable up and down by a rotatable float support rod 70 attached to a planted transmission case 50. It is supported on the paddy field so that. The groovers 64, ... Forming a fertilizing groove in the field are attached to each float in correspondence with the planting position. These floats are also sensors for detecting height changes in the field scene, and when the front part of the center float 71 moves upward by a predetermined amount or more, the hydraulic valve 49 is driven in a direction to extend the hydraulic cylinder 47, and the working machine part 4 moves. To rise. Further, when the front end portion of the float moves downward, the hydraulic valve 49 is driven in the direction in which the hydraulic cylinder 47 expands and contracts, and the working machine portion 4 descends. In this way, by appropriately elevating and lowering the work implement part 4 in accordance with the elevation change of the field scene, the height from the field scene to the planting rod 52 is always kept properly, and the planting depth of the seedlings is kept constant. It can be maintained. By changing the angle of the float support rod 70 and changing the support height of the float,
The planting depth can be adjusted.

[Effects of the Invention] As is apparent from the above description, the fertilized rice transplanter according to the present invention is compact in size by providing a space portion in the planting transmission case and providing a fertilizer conduit in this space portion. In addition, the fertilization position and the planting position can be brought close to each other, and the fertilization can be effectively performed.

[Brief description of drawings]

FIG. 1 is a side view of a riding fertilizer rice transplanter, which is an example of the present invention,
FIG. 2 is a plan view of the same, FIG. 3 (a) is a transmission system diagram of the working part drive output, FIG. 2 (b) is a development view of a clutch plate of a 1/2 clutch, and FIG. 4 is a planted transmission case. A perspective view and FIG. 5 are developed sectional views of the planted transmission case. 1 ... Passenger fertilizer transplanter, 2 ... Running car body, 3 ... Link device, 4 ... Working machine part, 10 ... Mission case, 12
...... Engine, 16 ...... front wheel, 18 ...... rear wheel, 50 …… planting transmission case, 51 …… planting table, 52 …… planting equipment, 60 …… fertilizer application, 63 …… fertilizer conduit, 87 ……space.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seike Rihaku No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. Technical department

Claims (1)

[Claims] 1. A fertilized rice transplanter in which a feeding section of a fertilizer application is arranged in front of a planting transmission case of a rice planting apparatus, wherein a space section is provided in the planting transmission case, and the space is fed from the feeding section. A fertilizer transplanter characterized by passing a fertilizer conduit that guides the fertilizer to the vicinity of the planting position.