KR940001023B1 - Apparatus for controlling horizontal of agricultural machine in pady field - Google Patents

Abstract

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Description

Horizontal control device for agricultural agricultural machinery

1 is a side view of an example of a walking rice transplanter according to the present invention.

2 is a plan view thereof.

3 is a side view of the main part.

4 is a front view thereof.

5 is a front view in cross section.

6 is a perspective view of a horizontal control device.

* Explanation of symbols for main parts of the drawings

1: walking type rice transplanter 2: mission case

3: engine 4: hydraulic unit

7: water wheel 9: main frame

12: planting unit frame 13: planting device

14: mother mounting table 15: planting work

80: center float 90: pitching cylinder

81: side float 96: rolling cylinder

106: pendulum

TECHNICAL FIELD The present invention relates to a horizontal control apparatus for a work part in a farming machine for a walk, such as a walking type rice transplanter.

The pendulum freely swings in the plane perpendicular to the direction of travel, and the grounding wheel is lifted by a rolling means such as a hydraulic cylinder in accordance with the swing of the pendulum, and it is maintained horizontally with respect to the surface when the working part is short. There is a walking type rice transplanter with a constant planting depth.

However, there are many side floats in large walking type rice transplanters such as four-row planting and six-row planting, and this kind of side floats are raised on the raised part around the rice field when working by the rice field. If you go back, the pendulum is inclined to the lower side, because the force in the direction of lowering the vehicle to increase the inclination of the aircraft there is a problem that is dangerous.

In order to solve the above problems, the present invention has been configured as follows. That is, the horizontal control device of the answering agricultural work machine according to the present invention is provided so that the work part can swing up and down in a plane perpendicular to the traveling direction, and maintains the work part horizontally with the hydraulic rolling means. In the horizontal control device of the agricultural work machine for the answering machine, pendulum and left and right pair of grounding bodies which can swing freely in a plane perpendicular to the traveling direction are provided, and the pendulum control which operates the rolling means by always shaking the pendulum When the up and down movement of the grounding body is larger than a predetermined amount, pendulum control is regulated.

Pendulum control and ground body control are possible, and during normal work, pendulum control is performed so that stable running can be maintained at all times by defining pendulum control when the ground body rises to the ridge at the time of working near the rice field and when turning.

Hereinafter, the embodiment shown in the drawings will be described.

This walking type rice transplanter (1) is a four-row planting machine that arranges the driving part mission case (2), the engine (3), the hydraulic unit (4), etc. in the front of the body, and pivots on the mission case (2) side. At the ends of the tube parts 5 and 5, the transmission cases 6 and 6 were installed backwards so that they could be rotated up and down. Step wheels 7 and 7 which are wheels are attached. The main frame 9 is fixedly connected at the base side of the rear side of the mission case 2. The main frame 9 extends rearward through the lower part of the body and then bends in the middle portion, so that the rear portion obliquely upwards. Then, the attachment bracket 10 of the work planted slightly forward from the curved portion is fixed, and the planting part frame 12 having the electric mechanism therein and the planting device 13 attached thereto are attached to the bracket 10. The planting work unit 15, which is made of the base mounting table 14 or the like, is mounted. In addition, a steering wheel 17 is attached to the rear end of the main frame 9.

Planting part frame 12 is provided with the moving shaft 20 and the planting shaft portion 21 up and down in the left and right central portion, and project the left and right transmission pipes 22, (LR) on both ends of the planting shaft portion 21 thereon. The chain cases 23 (C, L, R) are arranged side by side on the right side from the center of the planting shaft portion 21 and the ends of the left and right transmission pipes 22 (L, R). Then, a total of four sets of planting apparatuses 13 in total on the inner surface side of the lower ends of the left and right chain cases 23 (L, R), each of which is formed on both sides of the tube portion 23a at the lower end of the center chain case 23 (C). … Is provided. Moreover, the bracket 24 is fixed to the lower end part of the center chain case 23 (C) at the planting part 15 side. On the lower side of the left and right chain cases 23 (L, R), support sections 25, 25 extending rearwardly are integrally provided, and the base holder support frame 26 is provided on the upper surface side of the rear end of the support section. It is hypothesized sideways. Then, the base holder 14 inclined so that the front part becomes a low position by the rail 29 attached to the base holder support frame 26 and the support member 28 fixed to the rear end of the main frame 9. Activity is supported freely from side to side. The base material base 14 is a base material part 14a of four surfaces whose upper surface is divided equally. It is a pedestal partitioned as an each, and each base material part 14a ... Transmitter 30 which sends hair on pedestal downward every time…. Is provided. In the front end of the upper surface, the mother guide rod 31 is provided sideways at about half the height of the mother height, and the branch rods 32 are arranged at predetermined intervals on the mother guide rod 31 thereon. It is provided in parallel along this base material base 14.

On the lower side of the base holder 14, the base member 14a is formed. Corresponding to odor exit 33 Is formed receiving stand 34 is integrally provided with the base support frame 26. Moreover, the pull-out support rod 35 which supports the following float is provided in the left and right support intervals 25 and 25 so that rotation is possible around a shaft. The float depth adjustment lever 84 mentioned later is attached to this float support rod 35. As shown in FIG.

These planting work units 15 (parts enclosed by imaginary lines in Fig. 3) are joined together in one unit, and the bracket 24 of the planting unit frame and the bracket 10 of the main frame are fastened by bolts or the like. The whole is integrally mounted to the main frame 9. Thus, the whole planting work part can be detached from the mainframe, so that the planting work can be easily repaired and inspected, and the bonding work of the planting work part is simplified. Furthermore, in the present embodiment, the supporting member 28 and the rail 29 are fixed to the main frame 9 side, but in some cases, the supporting member 28 and the rail 29 may be attached to the working part 25 which is also planted.

Next, the mechanism in the planting part frame 12 will be described. The transmission shaft 40, which is connected to the mission case 2 and generates rotational power, is inserted into the shaft part 21 planted through the main frame 9 above. The rotating power of the transmission shaft is transmitted to the driving shaft 41 supported in the shaft portion 21 via the bevel gears 42 and 43. An exact stop clutch 45 is provided between the planting shaft 41 and the bevel gear 43. When the rotation of the stationary shaft 40 is stopped, the planting shaft 41 stops at a predetermined rotational position. have. Further, the rotational power of the planting shaft 41 is set by the chain 47, which is hypothesized in parallel in the chain case 23 (C, L, R). It is transmitted to the crank shaft 48 (C, L, R) in which the shaft is supported by the lower end of the chain case. The crankshaft 48 (C) in the center is located at both left and right ends, and the left and right crankshafts 48 (L, R) are positioned at the inner ends, respectively. Is attached. When the planting section 50 of the planting device 13 is supported by the crank 50 and the ring 51 attached to the chain case, and the crank shaft 48 rotates, the planting section provided at the tip of the planting section 52 The claws move up and down while drawing a predetermined trajectory, while planting the seedlings of the base material bracket 14 supplied to the hair-sucking outlet 33 while planting the seedlings.

On the other hand, in the moving shaft portion 20, a helical groove in which the moving shaft 54 is free to move in the axial direction and both ends protrude to the outside, and the lead metal clamp 55 attached to the center of the moving shaft are engaged with each other. The lead camshaft 57 with which 56 was cut off on the outer peripheral part is provided. The base mounting support arms 58 and 58 are fixed to both ends of the moving shaft 54, and the front end thereof is connected to the bolt provided on the bottom side surface of the base mounting base 14 by an attachment nut 59. The lead camshaft 57 is transmitted by the shaft 41 planted via the gear-shaft transmission 60 provided in the moving shaft part 20 and the edge part of one side (left side) of the planting shaft part 21. As shown in FIG. A driven camshaft 62 is provided on the side opposite to the transmission 60, and the lead cam on the lead camshaft 57 side and the follower camshaft 62 side are formed by a pair of driven cams. 63). At the outer end of the driven camshaft 62, an arm 65 for operating the mother feeding device 30 of the base mounting bracket is attached. When the lead cam shaft 57 rotates, the tongs 56 of the moving shaft move along the groove of the lead cam shaft 57, and thus they move left and right like the base holder 14 of the moving shaft 54. When the moving shaft 54 reaches the end of the left and right strokes, the cam mechanism 62 rotates in a predetermined direction by the action of the cam mechanism 63 so that the feeder 30 starts and the hair extracting outlet is not known. Transfer in the direction of (33).

The planting part frame 12 has both shaft portions 20 and 21 arranged on an arc (radius r) along the outer periphery of the answer wheel 7 as viewed from the side, and is more than the shaft portion 21 on which the moving shaft portion 20 is planted. It is provided in the front. In addition, each chain case 23 (C, L, R) is inclined so as to be in the forward position by the lower portion, and the space portion 70 is formed between the support sections 25 provided by acutely intersecting this. The bottom part of the base mounting base 14 is comprised in this space part 70. As shown in FIG. For this reason, the planting shaft 41 in the planting part frame 12, the attachment nut 59 of the base mounting base 14, and the float support rod 35 are arrange | positioned substantially in a straight line. In this configuration, the center of the planting part frame 12 is provided relatively forward, and the base plate 14 can be provided by approaching the planting part frame 12 so that the center of the body is closer to the front than the conventional one. It can be located at, so that the maneuverability is excellent and the battlefield can be shortened. Moreover, by bringing the bottom part 12 of the base mounting base 14 into the planting part frame 12, the operation amount of the planting trunk 52 can be made small, and the planting precision can be improved. The base mounting support arm 58 is curved upward in a side view when viewed from the side to bypass the left operation pipe 22 and the left and right chain cases 23. Simulation of the base mounting bracket 14 is the same direction by the branch rod 32 and at the same time is pushed upward by the guide rod 31 is supplied to the hair extracting outlet 33 in a bent state because the simulation wiggle by the planting stem 52 This is done satisfactorily and at the same time, it does not wear out by a connection with the simulation plant part 12.

Furthermore, as shown in FIG. 4, the planting part frame 12 has a split surface F ₁ provided at the left end of the moving shaft 20 and the planting shaft 21 at the right end of the moving shaft 20. The divided surface F ₂ and central chain case 23 (C) provided in the vertical section are divided into five members P 1 to 5 to be divided in the divided surface F ₃ . That is, the member P1 consists of the center part of the planting shaft part 21, the left part of the center chain case 23 (C), and the cylinder part 23a. The member P2 includes a portion 72 for accommodating the transmission 60 of the moving shaft portion and the driving shaft portion, a left transmission pipe 22 (L), and a left chain case 23 (L). The member P3 comprises a right end portion of the planting shaft portion 21 in which the support flange 73 is integrally formed, a right portion of the central chain case 23 (C), a right transmission pipe 22 (R), and a right chain case. (23) (R).

The left and right chain cases 23 (L, R) are integrally molded into a bag shape with an upper end opening, and the opening is closed with a lid 74, and there is no joint at the side of the answer surface, so that the muddy water is in operation. It is hard to get back in the case and is superior in watertightness. Furthermore, when storing the chain in the chain case, the lower sprocket raised by the chain from the opening is laid down, and the crankshaft 48 is placed on the sprocket in the state where the sprocket is arranged at a predetermined position. It is good to insert. The member P4 constitutes the right end of the moving shaft portion 20 in which the cam mechanism 63 is housed, and is attached to the support flange 73. Moreover, the member P5 comprises the center part of the moving shaft part 20. As shown in FIG. Since the moving shaft 54 and the lead cam shaft 57 are supported by the members P2 and P3, a large load is not applied to this member P5. Therefore, the member P5 can be formed into a lightweight pipe such as aluminum or synthetic resin, and the frame can be reduced in weight.

In the lower part of the base, a long center float 80 before and after and a pair of relatively small left and right side floats 81 and 81 as ground bodies are attached to the float support rod 35. The attachment method is float by rotating the support rod 35 around the shaft with a depth adjustment lever 84 in which the support piece 82 of the float is freely rotatably mounted on the tip of the arm 83 fixed to the support rod 35. Is to change the support height of the The entirety of the center float 80 is suspended by an expansion ring 85, and the distal end of the side float 81 is suspended by a swing ring 125 described later.

In the upper portion of the base, the preliminary base material base 99 is held almost horizontally by the support frame 97 and the support 98 attached to the planting part frame 12.

Next, the gas control apparatus of this rice transplanter 1 is demonstrated.

At the rear of the hydraulic unit 4, a pitching cylinder 90 for lifting and lowering the gas is provided to the rear, and the ring plate 92 is horizontally horizontally applied to the front end of the piston rod so as to force it backward by the spring 91. Is attached. The right and left ends of the ring plate 92 are connected to the upper ends of the swing arm arms 94 and 94 protruding upward from the rotational cylinders 5 and 5 via the left and right connecting rods 95 (L and R). It is. And the rolling cylinder 96 which is a rolling means of a gas is opened in the middle part of the left connection space 95 (L).

The hydraulic unit 4 is provided with a switching valve 100 of the pitching cylinder 90, and a detection rod 102 attached to the center float 80 on an arm 101 fixed to the valve shaft of the switching valve 100. ) Is connected to the upper end. Further, at the rear of the hydraulic unit 4, a switching valve 105 of the rolling cylinder 96 is provided to be biased from the center of the body to the right. The valve shaft 105a of the switching valve 105 protrudes toward the rear side, and the pendulum 106 is integrally attached thereto. Therefore, the pendulum 106 can swing freely in a plane perpendicular to the traveling direction. When the pendulum is shaken, the valve shaft 105a is rotated, and the rolling switching valve 105 is switched accordingly.

Holes 110 and 110 are provided above and below the pendulum 106, and one end of the control rod 111 and 111 is fitted into this hole. The mold members 112 and 112 are fixed to the other end of each control rod 111.

형 부재(112),(112)에 각각 맞물려 있다. 각 수평아암(115)의 선단부는 연결로드(120)의 후단부에 연결되어 있다. 이 연결로드(120)는 전동케이스(6)의 기초부에서 옆방향으로 돌출한 지지파이프(118)의 기초부쪽에 마련한 굴곡아암(119)의 상단부에 접동이 자유롭게 부착되어 전단부쪽에 스프링(122)이 여유있게 끼워져 있다. 또, 연결로드(120)의 전단부는 나사부로 되어 있고, 여기에 나사맞춤한 너트(123)의 조인량을 조절함으로써 로드의 유효길이를 바꿀 수가 있게 되어 있다. 더욱이, 지지파이프(118)의 선단부에는 요동링(125)이 마련되어, 이 요동링의 긴구멍(126)에 사이드 플로우트(81)의 전단부에 마련한 후크부재(127)가 여유있게 끼워져 있다. 이 요동링(125)과 굴곡아암(119)은 연결봉(128)에 의하여 연결되어 일체화 되어 있다.Then, the rods 116 and 116 fixed to the base portions of the horizontal arms 115 and 115 which are freely swinged back and forth and whose positions are freely moved around the vertical axis 114 provided on the rice transplanting frame are described above.

Engaging in the mold member 112, 112, respectively. The front end of each horizontal arm 115 is connected to the rear end of the connecting rod 120. The connecting rod 120 is freely attached to the upper end of the bending arm 119 provided on the base of the support pipe 118 protruding laterally from the base of the transmission case 6, the spring 122 on the front end ) Is loosely inserted. In addition, the front end of the connecting rod 120 is a screw portion, and the effective length of the rod can be changed by adjusting the tightening amount of the nut 123 screwed thereto. Further, a swing ring 125 is provided at the tip end of the support pipe 118, and the hook member 127 provided at the front end of the side float 81 is inserted into the long hole 126 of the swing ring. The rocking ring 125 and the bending arm 119 are connected and integrated by a connecting rod 128.

Next, the operation of the control device will be described. The height of the surface shorted by the detection rod 102 attached to the center float 80 is detected, and the pitching switching valve 100 is switched accordingly, so that the pitching cylinder 90 ) Stretch operation. Then, the swing arms 104 and 104 are rotated back and forth through the left and right connection 95 (L, R) so that the left and right side wheels 7 and 7 simultaneously move up and down with respect to the body by the same amount. For this reason, as a result, the gas is raised and lowered so as to keep the simulation depth deep.

In addition, due to the pendulum 106, the inclination of the gas in the left and right directions is detected, and the switching valve 105 of the rolling cylinder 96 is switched thereon, so that the rolling cylinder 96 stretches. Then, the left swing arm 94 is rotated so that only the left means wheel 7 (L) moves up and down with respect to the body to correct the left and right inclinations of the body.

When the side float rises to the raised part around the paddy field at the time of work by the paddy field, or when the aircraft is inclined at the time of turning, the swing ring 125 pushed up to the side float 81 on the raised side or the inside ) Swings upward and the honey-arm arm 119 on the same side rotates forward. When the lift amount of the side float 81 is greater than or equal to a predetermined amount, the pendulum (the pendulum) is rotated by the horizontal arm 115 against the force of the spring 122 to the front and dragged by the rod 116. 106 is forcibly shaken in the opposite direction to the state of free swing.

Due to this, pendulum control by shaking of the pendulum 106 is regulated. If the pendulum control is in operation, when the gas is inclined by the external pressure, the rolling cylinder 96 is operated in the direction of increasing the inclination, but in the present invention, because the pendulum is turned to the neutral position by the vertical movement of the side float. Operation in the direction of increasing the inclination by the rolling cylinder 96 is regulated. The limit for switching to float control in this pendulum control can be adjusted by changing the effective length of the connecting rod 120 with the nut 123.

Moreover, in the present embodiment, when the gas is inclined by a predetermined amount or more, switching is made automatically from pendulum control to float control, but this may be done manually.

As is apparent from the above description, the horizontal control device for the agricultural work machine according to the present invention preferentially performs horizontal control by pendulum control during normal operation so that the left and right ground bodies on the side of the rice paddy field or the like are turned over a certain amount. In the case of moving to, the control of the grounding body to regulate the control by the pendulum can be performed, so that it is possible to maintain a stable planting state and to perform stable running at all times.

Claims (1)

The working part 15 is provided so as to be able to swing up and down in the plane perpendicular to the traveling direction, and is horizontal in the answering agricultural worker which keeps the working part 15 horizontal with respect to the surface shortage by the hydraulic rolling means 96. In the control apparatus, a pendulum 106 which can freely flow in a plane perpendicular to the traveling direction, and a pair of left and right ground bodies 81 and 81 are provided, and the rolling means is based on the shaking of the pendulum at all times. A pendulum control for activating (96) is performed, but when the vertical movement of the grounding bodies (81, 81) is greater than a predetermined amount, the pendulum control is controlled.

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