JPS61152208A - Running apparatus of seedling planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a rolling control device for a seedling transplanter or the like.

Problems to be Solved by the Invention During seedling planting work using a seedling transplanter, etc., the running wheels may float relative to the tiller due to dents in the tiller, and as a result, the running wheels may sink. This would cause the vehicle body to tilt and hinder the seedling planting work, but in order to prevent IJ2, rolling control is used to raise and lower the left and right traveling wheels independently to maintain the vehicle body in a horizontal position. In various types of seedling transplanters, etc., the running wheels are always maintained in a state where they are sufficiently grounded against the tiller while this rolling control is in effect, so the drive reaction force of the running wheels is used to control the running vehicle body. This acts on the steering wheel, and when the vehicle body is turned, the lifting load on the steering wheel becomes large, requiring a large amount of effort when turning.

In addition, during rolling control, if this rolling control detection is normally performed by the vertical movement of the left and right floats that slide on the earthen failure surface, excessive detection is likely to occur because both the left and right floats detect independently. The vehicle body leans to the left and right more than necessary, making it difficult to drive stably.

Means for Solving the Problems This invention detects the left and right inclination of the traveling vehicle body (1) and raises and lowers the left and right traveling wheels (2) and (3).
) to keep it in a horizontal position.
A traveling device such as a seedling planting machine is configured to be fixed in an uncontrollable state in conjunction with the traveling turning operation of the traveling vehicle body (1).

Functions and Effects of the Invention In a seedling planting machine, etc., which plants seedlings while moving the traveling vehicle body (1) forward by rotationally driving the left and right traveling wheels (2) (3), for maintaining stable seedling planting. Low link control is performed, and this rolling control uses hydraulic drive to raise and lower the left and right running wheels (2) and (3) to a state where they can be sufficiently grounded against irregularities on the plowing platform, and the running vehicle body (1) is always maintained. Although it is possible to maintain the horizontal position, on the other hand, the ground driving force of the left and right running wheels (2) (3) against the tiller becomes stronger, so when turning around, for example, the running vehicle body (
1) The drive reaction force acts on the control handle for full control, increasing the lifting load, but by temporarily stopping the hydraulic drive of the rolling control in conjunction with this turning operation, the control handle Since the driving reaction force acting on the handle is released, turning can be done easily.

In addition, as in the embodiment, pitching control is performed by lowering or removing the running wheels (2) (3) by vertical movement of the front end side with respect to the running vehicle body (1), and pitching control is performed by lowering or removing the running wheels (2) and (3). By rotating the left and right running wheels (2) (3)
A float (
4), when a traveling device such as a seedling planting machine according to claim 1 is configured, the float (4) that slides in contact with the planting soil surface is attached to the traveling vehicle body (1). Pitching control is performed when the front end side is horizontal and the float (4) moves up and down, and the front end side of the float (4) is
4) When the left and right ends rotate left and right about the center line in the longitudinal direction, low link control is performed. In normal left and right individual detection using left and right floats, there is no reference between the left and right floats, so there are many unnecessary detections, but in low link control using a single float (4), the float ( 4) performs the detection action by rotating left and right, there are fewer unnecessary detections than the detection action using normal left and right floats, and the traveling vehicle body (1) can run stably without unnecessarily tilting and swinging from side to side. I can do it.

Embodiment In the illustrated example, the forward direction (a) of the traveling vehicle body (1)
A prime mover (5) is mounted on the front side, and left and right running wheels (2) (3) and a seedling planting device (
A transmission case (7) is provided for transmitting power to the seedling planting device (6) etc. on the rear side of the transmission case (7).
) with the interlocking shaft interlocked with the connecting body (8
) is extended, and the rear side of this connecting body (8) is further equipped with a planting mechanism and a planting case O that supports the left and right planting rods (9).
Establish I. In addition, a pair of left and right handles OD whose rear parts curve upwardly are provided on the rear side of this planting case On, and a pair of left and right handles OD whose rear portions are curved and protrude upward, and the handle 0 is provided on the front side of this hand tI/Ql).
A seedling tank 0 is provided to accommodate seedlings leaning forward approximately along η. A cylindrical rotating part 0.1 containing a transmission shaft is provided on both left and right sides of the lower part of the transmission cane (7), and a chain link 04 containing a chain interlocking mechanism is provided in this rotary part 0.1.
) is supported rearward so as to be movable up and down, and an axle 00 protrudes from the rear of this chain case 04) to pivotally support left and right running wheels (2) and (3). Further, a rotating arm OQ is provided to protrude upward from the Cheno case 0→ side of the rotating portion σ■. A hydraulic cylinder Q7 for pitching control is provided protruding from the top of the transmission case (7) toward the rear side, and a double hydraulic cylinder Q7 for rolling control is installed at the tip of the piston of this hydraulic cylinder α. The shaft is pivotally supported, and the tributary rod Qυ is supported on the outer periphery of the boss part (A) with a loose fit in the horizontal direction so that it can be rotated slightly in the front-rear direction in plan view, and the tributary rod Qυ is loosely fitted in the horizontal direction so that it can rotate slightly in the front-rear direction in plan view. The left and right sides of the rotating arm OQ are connected by rods (A), and a buffer spring is elastically biased between the end face of the hydraulic cylinder α force and the end face of the boss portion (A) of the double cylinder 09. It can be set up. Connect the metal fittings at the tips of the left and right pistons (C) of the dual cylinder α with the corresponding positions of the pressure rod ←D, and when the hydraulic cylinder 0 stops hydraulic operation, the left and right pistons An adjustment spring (C) is provided to return the adjustment spring (C) to the equilibrium position.

A pressure relief pin (C) is provided at the rear of each of the two cylinders, and the left and right pressure relief pins (A) are operated at the same time in order to contact the rear of this pressure relief pin (E) and release the hydraulic pressure. A pressure relief rod is provided so as to be rotatable back and forth, and this pressure contact rod (c) is connected to one end of a wire rod, and the other end of this wire rod is attached to an operating lever (a) provided above the handle 01). Link.

At the base of the handle 01) there is a downward and horizontal rotation 1
A fulcrum metal fitting (7) that can be freely combined is provided, and this fulcrum metal fitting (
7), a float (4) is provided so as to be rotatable up and down and left and right over almost the longitudinal length of the traveling vehicle body (1), and a right and left rotation fulcrum is provided at the left and right center position on the front end side of the upper surface of the float (4). A metal 01) is provided, and a pinchin farm (a) which is U-shaped in plan view is supported on this fulcrum metal 01),
Long holes provided on the left and right front ends are slidably connected with pins to the inner surface of the frame (to) on which the motor (5) is mounted. An L-shaped arm part (■) is further extended to the left from the left corner of the pinotine farm 02, and a pitching clot (toward) is connected to approximately the middle part of this L-shaped arm part (2) in the longitudinal direction. The other end of the rod (c) is connected to the pitching pulp operating arm (to) provided at the front upper part of the transmission case (7). The rod of the curved arm (
c) Connect the center part of a small L-shaped low link arm (b) with a pin at a position slightly to the rear of the connection point so that it can rotate freely, and connect one end of the rear side from the center of the arm (support) to the float. (
4) Connect the metal fittings (C) fixed to the J-plane with a rolling rod, and connect one end above the center of the arm (G) and the rear side of the second part of the transmission case (7). Separate port - Ring valve operating arm (40) and wire (41)
Conjunct i by.

Note that θ is a fuel tank, and 03 is a side clutch lever for changing the course of the traveling vehicle body (1).

The left and right running wheels (2) are moved by the movement of the prime mover (5) at 'A°C.
(3) are interlocked to move the traveling vehicle body (1) forward, and are interlocked to move the seedling tank 02 laterally and perform the planting action using the planting rod (9). At this time, the left and right wheels (2) (3)
) maintains the stability of the seedling planting side with respect to the soil surface by maintaining the horizontal attitude of the running vehicle body (1) through pitching control or rolling control. In such an action, for example, when the float (4) moves upward almost horizontally due to pressure from the surface of the arm, the pinotine farm 02 also moves while its elongated hole slides, causing the arm to move upward. Since the L-shaped arm part ■, which is a part of the L-shaped arm part ■, also moves upward, the pitching clot (c) connected to the L-shaped arm part ■ is moved upward, and the pitching pulp operates the hydraulic cylinder 0η, and the piston θ dips. The right and left wheels (2) are moved backward in parallel to the shaft Qf supported by the rod (A), and are connected to the left and right wheels (2) via the rotating arm θQ, the moving part θ■, and the chain link Q4).
(3) is lowered in parallel to raise the traveling vehicle body (1). Also, due to this reverse action, the rolling vehicle body (1) is lowered. Pinotinda control is performed as described above, but -
When the force meter float (4) receives pressure from the soil surface and its left and right ends rotate left and right, for example, when the left end side rotates two times, the flow 1- (4) The rolling rod wire connected to the metal wire on the top surface. The rolling arm (b) moves up through the
A dual hydraulic cylinder 09 is connected to the rolling valve via a wire θ1) connected to the rolling arm (b).
Activate the cylinder on the right side of the piston (goods) to move only the right side forward and use the rod on the right side (A) to move the right side rotating arm OQ, rotating part 03, and chain case 04. ), the right wheel (3) is raised to return the vehicle body (1) to a horizontal position. Further, when the right end side of the flow 1-(4) is rotated upward, the traveling vehicle body (1) is returned to a horizontal position by an action opposite to that described above. In this way, the left and right wheels (2) are
(3) are raised and lowered separately to perform the seedling planting work while stably maintaining the left and right inclination of the traveling vehicle body (1) in a horizontal position, and rolling control is used to control the left and right wheels (2) (
3) is raised and lowered to a state where it can be sufficiently grounded and driven with respect to the tiller, and the drive reaction force of the wheels (2) and (3) acts on the nonindle 0υ, so that the traveling vehicle body (1) at the edge of the ridge is
When the handle 01) is turned, the load on the handle 01) increases 1~
Therefore, it requires a lot of effort when turning the handle 0υ, so only when turning the handle 0υ is the lever provided on the handle 0υ. By operating c) in the direction of releasing the hydraulic pressure, the rolling control is stopped and becomes uncontrollable, so the drive reaction force acting on the handle 0) is released and the handle 01) is lifted. You can turn around easily.

As shown in FIG. 4, by stopping the rolling control and making it uncontrollable, the handle 01 when turning is
) To reduce the lifting load of the float (4), divide the float (4) into front and rear halves and set the float (4) as 0→), and install a pair of left and right floats that can move up and down independently. It may also be provided for rolling detection.

[Brief explanation of the drawing]

FIG. 4 is a side view. In the figure, reference numeral (1) indicates a running vehicle body, (2) and (3) indicate left and right running wheels, and (4) indicates a float.

Claims (1)

[Claims] 1) Rolling control that detects the left and right inclination of the traveling vehicle body (1) and controls the left and right traveling wheels (2) and (3) to move up and down to maintain the traveling vehicle body (1) in a horizontal posture. A traveling device such as a seedling planting machine is provided to fix the vehicle in an uncontrollable state in conjunction with the traveling direction operation of the traveling vehicle body (1). 2) Pitch control is performed by lowering or raising the running wheels (2) and (3) by vertical movement of the front end side with respect to the running vehicle body (1), and the left and right running wheels (2) are controlled by vertical movement of the left and right ends. A traveling device such as a seedling planting machine according to claim 1, further comprising a float (4) which is interlocked to raise and lower the float (3) for rolling control.