JPH029308A - Walking-type transplantation machine - Google Patents

Abstract

PURPOSE:To facilitate the mending and inspection of transplantation work part and simplify the assembling of the part by forming the whole members constituting the transplantation work part into a set of assembled member and making the member to be attachable to a working part-attaching bracket. CONSTITUTION:The transplantation work part 15 is fixed in the form of single unit. The bracket 24 of the transplantation frame is fixed to the bracket 10 of the main frame with bolts, etc., and the assembled material is attached to the main frame 9. Since the whole transplantation work part can be removed from the main frame 9, the mending and inspection of the transplantation work part can be facilitated and the assembling work of the transplantation work part can be simplified.

Description

Detailed Description of the Invention r Completed 1 Purpose of 1 "Industrial Application Fields" Unfinished 1] 1. Concerning the structure of the planting work section in a walking type planting machine.

``Prior art'' A planting machine that has an engine and a transmission case for traveling at the front of the aircraft, and a planting gear case that also serves as a planting part frame, a planting device, a seedling stand, etc. at the rear of the aircraft. A walking type planter with attached working section [J7 transplanter is widely used.

[Problem to be solved by the invention] L The conventional walk-behind rice transplanter has a gear case in the planting work section,
Since the planting equipment, [W mounting table, etc.] were individually fixed to the frame, there was a problem that repairs and inspections of the planting work section were difficult.

Structure of the Invention [Means for Solving the Problems] In order to solve the problems listed in L, the present invention has the following structure.

In other words, the walking-type Ill planting machine according to [Unreleased] 夛1 has an engine and a mission case for traveling in the t:ji Fm of the machine body, and a planting part frame with a built-in transmission mechanism in the rear of the machine body, In the walking type planting machine equipped with a planting work section consisting of a planting device, an E bamboo mounting stand, etc., the main frame to which the No. 1 section side is attached is extended rearward to the mission case. It is characterized in that the working part mounting bracket is sunk in a suitable position on the main frame, and the entire member constituting the planting working part is provided as a 1Ml assembly so as to be removably attached to the working part mounting bracket.

[Function] Since the entire planting work section can be removed from the main frame, repairs and inspections of the planting work section are easy. Further, the work of assembling the planting work part can be simplified.

Examples] The embodiments shown in the drawings will be described below.

This walk-behind 11-row planting machine is a 4-row planting machine, and has a running part mission case 2. The engine 3, hydraulic unit 4, etc. are disposed, and a transmission case 6.6 is installed at the end of the rotary cylinder parts 5, 5 protruding from the side of the transmission case 2, and a transmission case 6.6 is installed downwardly and facing backwards. Paddy wheels 7, 7, which are ground wheels for supporting the aircraft body, are attached to the rear end of the transmission case.

A 1M main frame 9 is connected to the rear of the mission case 2 at its base side. This main frame 9
extends rearward through the bottom of the fuselage, then curves in the middle, with the rear end rising diagonally upwards. Then, the planting work part mounting bracket 10 is fixed to a position slightly forward of the curved part 2, and the bracket,
The planting section frame 12 has a transmission mechanism inside.
and the planting device 13 attached to it. ..., seedling stand 1
A planting work section 15 consisting of four components is attached. Also,
A handle rod 17 is attached to the rear end of the two main frames 10.

The planting part frame 12 has a moving shaft part 20 and a planting shaft part 21 vertically provided in the left and right center parts, and further has transmission vibrations 22 (L, R) protruding from both ends of the planting shaft part 21, Planting shaft part 2
1 and the left and right pipes 22 (L, R
) A chain case 23 (C, L, R) is installed vertically at the end of the chain case 23 (C, L, R). Then, one set each on both sides of the fl123a at the lower end of the center chain case 23 (C), and the left and right chain cases 23
A total of 4 sets of planting devices 13., one set each on the inner side of the lower end of (L, R). ...is provided. Further, a bracket 24 is fixed to the lower end of the central chain case 23 (C) on the j± planting work section side. Furthermore, support rods 2 extending rearward are provided at the lower ends of the left and right chain cases 23 (L, R).
5.25 is integrally provided, and a seedling stand support frame 26 is horizontally suspended on the upper surface side of the curved rear end portion of the support rod. A rail 29 is attached to this Ma stand support frame 26 and a support member 28 fixed to the rear end of the main frame 9.
The rNa table 14, which is tilted so that the front part is at a low position, is supported so as to be slidable left and right. The vinegar loading table 14 is a table partitioned by four side loading sections 14a, each of which has an equal portion of Ilf'i.

Each time, the bacteria on the table are sent downward. The W feed device 30°... is sunk. At the front end of the upper surface, a seedling guide rod 31 is horizontally suspended at a height of approximately 1/2 the seedling height, and furthermore, branch lines 32, .
is provided in the f row along the bacteria 11 units 14 - +
'+Y・It stand 14 (7) -F (JII niha, nn g(+'iJ1Fm l 4 a) The cradle 34 formed with the W outlet 33... corresponding to the seedling stand It is provided integrally with the support frame 26.In addition, the left and right support rods 25
．． At 25, there is a float support rod 3 that supports the float described later.
5 is installed horizontally on a turret that can be rotated around the axis. A planting depth adjustment lever 84, which will be described later, is attached to this float support rod 35.

These planting work parts 15 (the part surrounded by imaginary lines in Fig. 3) are assembled as one unit 7,
By fastening the bracket 24 of the planting section frame and the bracket 10 of the main frame with bolts or the like, the whole is attached to the main frame 9 as one piece. Note 1
In this embodiment, the support member 28 and the rail 29 are fixed to the main frame 9 side, but depending on the case, they may also be assembled to the planting work section 25 side.

Next, the mechanism inside the planting part frame 12 will be explained.The transmission shaft 407 connected to the mission case 2 and extracting rotational power from the main frame 9! Give one side and plant it +
11, the drive shaft 411 is fitted into the planting shaft 21, and the rotational power of the transmission shaft is supported within the planting shaft 21. The bevel gear 42.
43.

A fixed position stop 1- is provided between the planting shaft 41 and the bevel gear 43.
A larch 45 is interposed so that when the transmission shaft 40 stops rotating, the planting shaft 41 stops at a predetermined rotational position. Furthermore, the rotational power of the planting shaft 41 is tensioned within the chain case 23 (C, L, R).
A crankshaft 48 (C, L) is pivotally supported at the end of the chain case by...

R) will be informed. The central crankshaft 48 (C) has cranks 50. at both left and right ends, and the left and right crankshafts 48 (L, R) have cranks 50. at their inner ends. ...is taken by I=t. The planting rod 52 of the planting device 13 is supported by the link 50 and the link 51 attached to the chain case, and when the crankshaft 48 rotates, the planting claw provided at the tip of the ridged rod 52 moves into place. i! The seedling platform 14 moves up and down while drawing a trajectory, and is supplied to the seedling tray 1'+u33.
The bacteria are now being planted in the field.

On the other hand, inside the movement +d1 part 2 part 0, it is slidable in the axial direction +
j4 A moving shaft 54 whose end protrudes outside, and a spiral groove 56 that engages with a lead metal claw 55 attached to the center of the moving shaft are cut on the outer periphery, and a docam shaft 57 is provided. ing. +W platform support arms 58, 58 are fixed to both ends of the moving shaft 54, and the tips thereof are connected to bolts provided on the bottom side of the seedling platform 14 with mounting nuts 59. The lead cam shaft 57 is connected to the moving shaft section 20 and the planting shaft section 2.
A gear-operated transmission device 6 provided at one (left side) end of 1.
0 from the planting shaft 41. Further, a driven camshaft 62 is provided on the side opposite to the side where the transmission 60 is provided, and the lead cam+! The cam mechanism 63 is composed of the 1I57 side sliding cam and a pair of driven cams on the driven cam shaft 62. The outer end of the driven camshaft 62 has a seedling stand [W
Delivery gear 2! An arm 65 is attached for operating I30. When the lead cam shaft 57 rotates, the pawl 56 of the moving shaft moves along the groove 57 of the lead cam shaft, so that the moving shaft 54 moves left and right together with the iW 1 unit 14. When the moving shaft 54 reaches the end about 1 on the left and right, the driven cam #+62 rotates in a predetermined direction by the action of the cam mechanism 63, the bacteria feeding device 30 is activated, and the bacteria is transferred to one row. Transfer in the direction of 33.

In a side view, this planting part frame 12 has both shaft parts 20 and 21 arranged along the outer periphery of the water wheel 7, and the moving shaft part 20 is provided in front of the planting shaft part 21. ing. Also, each chain case 23 (C, L, R) is lit so that the lower part is in the front position! A space 7 is formed between the inclined support rod 25 and the support rod 25 provided at an acute angle.
0 is formed, and a seedling stand I is placed in 19'・Cll11 part 70.
Is the bottom of number 4 located? It is configured. For this reason, the planting shaft 41 in the planting section frame 12. The attachment nut 59 of the seedling stand 14 and the float support rod 35 are arranged substantially in a straight line. With this configuration, the t-center of the planting part frame 12 is provided relatively forward, and the seedling stand 14 can be provided in contact with the planting part frame 12, which is different from the conventional one. In comparison, the center of the fuselage is located closer to the front, which improves maneuverability and allows the overall length of the aircraft to be shortened. Also, germs! f
? By bringing the 1:IC part of 14 closer to the planting part frame 12, the operating cost of the planting rod 52 can be reduced, and the planting accuracy can be improved. The seedling stand support arm 58 supports the pipe 22 and the left and right chain cases 2.
3, it is curved convexly in the direction F when viewed from the side. The seedlings on the seedling stand 14 are aligned in their orientation by the one-branch cup 32, and are pushed upward by the guide forest 31 and supplied to the extractor [133].
+Yi is well scraped off by the planting rod 52, and the 1''I7 does not come into contact with the planting section frame 12 and be worn out.

Furthermore, as shown in FIG. Surface F2
, and central chain case 23 (C) vertically divided 4J +
It is composed of five members P (1 to 5) that are divided into 11 parts. That is,
The member PL consists of the central part of the planting shaft part 21, the left part of the central chain case 23 (C), and the cylinder part 23a. The member P2 is a part that houses the transmission 60 of the moving shaft part and the drive shaft part. 72, the left transmission pipe 22 (L), and the left chain case 23 (L). Right side part and right transmission pipe 22 (
The left and right chain cases 23 (L, R), consisting of the right chain case 23 (R) and the right chain case 23 (R), are integrally molded into a bag shape with an opening at the upper end, and the opening is closed with 474. Since there is no joint part on the paddy field 1n1 side, muddy water etc. do not get into the case during one operation (excellent watertightness).

In addition, when storing the chain 7 in the chain case, the lower sprocket suspended by the chain 7 is suspended from the opening, and the crankshaft 48 is inserted into this sprocket with the sprocket placed in a predetermined position. Just let it happen0
The member P4 constitutes the right end portion of the moving shaft portion 20 in which the cam mechanism 63 is housed, and is attached to the support flange 73. Further, the member P5 constitutes the central portion of the movable Ih11 section 20. Since the moving shaft 54 and the lead cam shaft 57 are supported by the members P2 and P3, no large load is applied to the member P5. Therefore, by molding P5 with a lightweight pipe made of aluminum or synthetic resin, it is possible to reduce the weight of the frame.

At the bottom of the fuselage, there is a center float 80 that is long in the front and back, and a pair of relatively small left and right side floats 8 that serve as grounding bodies.
1.81 is attached to the float support rod 35. The installation method is such that the support piece 82 of the float is rotatably attached to the tip of an arm 83 fixed to the support rod 35, and the support rod 35 is rotated around the axis using the planting depth adjustment lever 84. This makes it possible to change the support height of the float. The front part of the center float 80 is suspended by an expansion/contraction link 85, and the tip part of the side float 81 is suspended by a height detection link described later.

Further, in the t section of the body, a preliminary loading stand 99 is supported almost on a wooden frame by a support frame 97 and a support 98 attached to the planting section frame 12.

Next, the body control device of this rice transplanter I will be explained.

A pitching cylinder 90 for lifting and lowering the aircraft is provided extending rearward from the rear of the hydraulic unit 4, and a link plate 92 biased backward by a spring 91 is attached to the left and right water pumps at the tip of the piston rod. There is. The left and right end portions of the link plate 92 are connected to the upper end portions of swing members 94, 94 which protrude in the L direction from the one-turn cylinder 5.5 via connecting rods 95 (L, R). A rolling cylinder 96, which is the rolling R stage of the fuselage, is interposed in the middle of the left connecting rod 95(L).

The 7111 pressure unit 4 includes a switching valve 100 for the pitching cylinder 90 and a switching valve 101 for the rolling cylinder 96.
is provided. The end of a rod 103 for detecting the height of the field surface attached to the center float 80 is connected to the valve shaft of the pitching switching valve lOO, and the pitching switching valve 103 changes in response to the vertical movement of the detection rod 103.
can be switched. Further, the rolling switching valve 101 is switched by a left/right tilt detection device 105, which will be described below. This left/right tilt detection device 105 includes a cylindrical body 106 that protrudes from the side of the mission case 2. t.

Rotating shafts 107, 107 are provided inside the rotating shaft 6, and a plate-shaped swing link 109 is fixed to the outer end of the rotating shaft. The swing link 109 is provided with an elongated hole 110, into which the shaft itt provided at the tip of the side float 81 is fitted, so that the swing link 109 swings in response to vertical movement of the side float 81 by a predetermined amount or more. Link 109 swings. On the other hand, a rotating arm 113 is attached to the inner end of the rotating shaft 107, and a rod ttS is attached to the rear end of the rotating arm.
One end of these left and right rods 115, 115 is connected to both left and right ends of the balance rod 116.

The balance rod 116 is rotatably supported by a bearing member 118 through a shaft 117, and the spool of the rolling switching valve 101 is driven in accordance with the rotation of the shaft 117.

Next, to explain the control action, the center float 8
The height of the ir4 scene is detected by the detection rod 103 attached to the pitching valve 100.
The pitching cylinder 90 performs an expansion and contraction operation, and then the /test r 7 is transmitted through the connecting rod 95 (L, R).
The wheels 7.7 are rotated back and forth, and the left and right wheels 7.7 are simultaneously moved down by L with respect to the aircraft body, resulting in the aircraft descending by 'yL. The planting depth is kept constant.

Furthermore, when the field slopes to the left or right, the loft 115 on the side that has moved L is held and the rod 115 on the side that has moved downward is pulled down, causing the balance rod 116 to rotate, and the rolling cutoff valve lO1 to switch accordingly. , the rolling cylinder 96 begins to extend and contract. Then, only the left rice field small wheel 7 (L) moves downward relative to the fuselage, correcting the horizontal inclination of the fuselage.

[Effect of 91 light] As explained above, the walking type 1fJ planting machine according to the present invention has a planting work section that is set as one 9-assembly body so that it can be removed from the main inflator 1 of the machine body. This structure facilitates repair and inspection of the planting section, and also simplifies assembly.

4, 1; A simple contact surface of 4 surfaces Figure 1 is a 1-walking type that is uninvented! )■1 A side view of an example of a transplanter, Figure 2 is a front view of the planter, Figure 3 is a side view of its main parts, Figure 4 is a front view of the machine, and Figure 5 is a cross-sectional view of the front view. It is a diagram.

1...Walking type In transplantation machine, 2...Mission case,
3...Engine, 4...Hydraulic unit, 7...+
11 times (ring, 9...main frame, 10...planting work part mounting bracket, 12...planting part frame, 1
3... Planting device 14... Seedling stand, 15... Planting work section, 20... Moving shaft section, 21... Drive shaft section, 22
...Transmission pipe, 23...Chain case, 24...
・Planting work section side bladder.

Patent applicant Month: Seki: S Ki Co., Ltd.

Claims (1)

[Claims] (1) A planting work section consisting of a planting section frame, a planting device, a seedling stand, etc., which has an engine and a transmission case for traveling at the front of the aircraft, and a built-in transmission mechanism at the rear of the aircraft. In the walk-behind rice transplanter, the main frame, the base side of which is attached to the mission case, extends rearward;
A walking rice transplanter characterized in that a working part mounting bracket is provided at a proper location on the main frame, and the entire members constituting the planting working part are detachably attached to the working part mounting bracket as one set of assembled bodies. Machine.