JPH0984408A - Row coating machine - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To enable highly accurate automatic tilling depth control of a soil-pulling rotary that is not affected by field conditions in a ridge coater. SOLUTION: A ridge coating machine in which a traveling vehicle (1) is equipped with a ridge coating device (7) that forms an upper surface and a slope of a ridge by a ridge coating plate (16) and detects unevenness of a rice field. A plurality of sensor plates (53) (54) (55) are provided, and these sensor plates (53) (54) (55)
A combination control means (61) for combining the above detection operations to control the elevation coating device (7) is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge coating machine which is equipped with a ridge coating device behind a traveling vehicle such as a tractor to continuously form ridges in a field or the like.

[0002]

In a ridge coating machine for controlling the tilling depth of a soil-pour rotary, a ridge coating machine having a structure equipped with a grounding type sensor plate for detecting unevenness of the paddy field has a limitation of the ridge coating device. The width of the sensor plate is narrow at the place where the receiving and ridge coating device is avoided, and the width of the sensor plate cannot be widened like in a tillage rotary working machine. For this reason, even if rice stocks or soil clods exist only in the place where the sensor plate is installed during the work, the control was performed hypersensitively in response to this.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention is a ridge coating machine equipped with a ridge coating device for forming an upper surface and a slope of a ridge by a ridge coating plate in a traveling vehicle so as to be movable up and down. A plurality of sensor plates are provided, and a composite control means for combining the detection operations of these sensor plates to control the elevation of the ridge coating device is provided, and a plurality of sensor plates are provided at an installable location. Even if one reacts hypersensitively, the control is stopped or minutely controlled depending on the relationship with the operation of another sensor plate, thereby enabling highly accurate control that is not affected by the field conditions.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a rear view of the sensor plate portion, FIG. 2 is a plan view of a ridge coating machine, FIG. 3 is a plan view of a ridge coating device,
FIG. 4 is a rear view of the same, in which (1) is the front and rear wheels (2).
In the tractor which is a traveling vehicle having (3), the driver's seat (4)
The front steering wheel (5) is operated to turn the front wheels (2) to steer the vehicle body.

A ridge coating device (7) is provided on the right side behind the tractor (1) via a three-point link mechanism (6) so as to be able to move up and down freely, and the lower links (8) and (8) of the tractor (1) are provided. ) And the top link (9) are connected to the left end side of the ridge coater main body case (10), towed by a tractor, and to a rotary claw (12) for plowing and a rotary blade (13) for throwing of the earthing rotary (11). The rotary cover (1) on the rear surface of the right end of the main body case (10).
4) These claws (12) and blades (13) that are mounted coaxially and are mounted on the same axis are rotated counterclockwise from the rear view, and the rice field surface on the side of the original ridge (A) is ground with rotary claws (11) to remove the soil. While crushing, the mud cover (15) is arranged above the upper surface of the ridge, the mud is formed by the rotary claw (12), and the mud scattered from the blade (13) which is rotated at the rear side is mud in the mud cover (15). It is configured to be dropped on the upper surface of the ridge by the guide of the shutter.

As shown in FIG. 5, a ridge shaping plate (16) for forming a new ridge (B) is disposed behind the mud cover (15), and a pair of hydraulic pumps (17) and a motor (18) are provided. ), The ridge shaping plate (16) is fixedly mounted on a vibrator (19) driven by the above method, and the shaping plate (16) is vibrated by the vibrator (19) to shape the mud from the blade (13) and the mud cover (15). A new ridge (B) is formed by shaping by the ridge coating action of the plate (16).

Further, the vibrator (19) is suspended from a vibrator mounting seat (20) via a swinging spring (21), and the mounting seat (20) is mounted on a vibrator arm (22) made of a square pipe. While being fixed to the right end,
One end of the parallel link (23) (24) is connected to the left end of the vibrator arm (22), and each link (2
3) (24) The other end is connected to both ends of the horizontal frame (25a) of the T-shaped lifting frame (25), and the parallel link (2)
3) A vertical frame (25) of the elevating frame (25) is provided on a guide frame fixedly supported on the rear surface of the main body case (10) by providing a brace link (26) for restricting the swing of the (24).
b) is slidably inserted up and down, and the main body case (1) is inserted.
A vibrator arm (22) is disposed substantially horizontally in the left and right direction on the right rear side of (0), and the vertical frame (25b) is tilted rightward so as to be substantially parallel to the slope of the new ridge (B). ing.

Further, an elevating cylinder (27) with an electric motor is mounted on a cylinder mounting seat which is connected and supported on the rear side of the main body case (10), and a tip of a piston (28) of the cylinder (27) is connected to the vertical frame. (25b) Connected to the coupling shaft (29) on the lower end side, forward / reverse operation of the electric motor causes the piston (28) of the elevating cylinder (27) to advance and retreat, and the elevating frame (25) is moved up and down, and the vibrator arm ( 22) and the ridge shaping plate (16) are raised and lowered.

Further, the base end of the mud cover frame (30) is fixed to the lifting frame (25), the mud cover (15) is fixed to the tip of the frame (30), and the right side of the main body case (10). The mud scattering prevention cover (31) fixed to the surface is superimposed on the upper surface and the front and rear surfaces of the mud cover (15), and the covers (25) and (31) prevent the mud from scattering by the rotary (11). doing.

Further, a round pipe-shaped sled (32), which is long in the front-rear direction and slides on the rice field, is supported on the lower side of the center of the main body case (10) so as to be vertically adjustable, and has a scraper (mud drop) function. The coulter (34) is attached to the front end of the sled (32) through the bearing arm (33), and the sled (3
2) The coulter (34) is made as close as possible to the front end to prevent jamming of straws, and the side disc can be mounted at the rear end of the sled (32) so that the height of the coulter (34) can be freely adjusted.
The soil on the rice field cut by is moved to the edge by the side disk to fill the groove formed by the rotary (11).

Furthermore, a hydraulic oil tank (35) for communicating with a hydraulic pump (17) and a hydraulic motor (18) is arranged on the left side of the main body case (10) and is close to the tank (35). A hydraulic pump (17) is arranged on the rear side of the main body case (10), and the hydraulic hoses (36), () are connected between the tank (35) and the pump (17) and between the pump (17) and the motor (18). 37).

As shown in FIG. 8, the input shaft (40), which is the ridge coating drive shaft of the main body case (10), is interlocked with the PTO shaft (39) of the mission case (38) of the tractor (1), and the shear shaft is connected. A counter shaft (43) is interlockingly connected to an input shaft (40) through a chain (42) that is interlocked with a bolt (41) with a torque less than a predetermined value, and a chain is connected to a rotary drive shaft (44) of the rotary (11). The counter shaft (43) is interlockingly connected via the (45), and the input shaft (40) is interlockingly connected to the pump drive shaft (46) of the hydraulic pump (17) via the chain (47). The rotation of the input shaft (40) drives the rotary (11) and the vibrator (19).

As shown in FIGS. 1, 3, 4, 6, and 7, the ridge coating device (7) is provided with a plowing depth sensor (48) of the earth moving rotary (11) for detecting unevenness of the rice field. Then, a plurality of side-surface substantially L-shaped sensor plates (49) for grounding the lower end to the rice field are provided on the center line of the tractor (1) on the rear side of the body case (10), and the unevenness of the rice field is caused by the change in the ground pressure. Are detected by the respective sensor plates (49).

The plow depth sensor (48) is provided on the bracket (5) on the lower left side of the main case (10) while avoiding the ridge coating device (7) and the tank stand (50) of the hydraulic oil tank (35).
1) and the sensor plate (49) via the pivot shaft (52)
Central and left and right three sensor plates (53)
(54) and (55) are vertically movably supported, and the bracket (51) is formed in an inverted T shape, and the upper narrow portion (51a) is provided at the rear end of the input shaft (40). The main body case (10) for supporting the main body case (10) is integrally fixed to the bearing (56) on the rear side via bolts (57), and each is attached to the pivot shaft (52) provided on the lower wide portion (51b). The sensor shafts (53), (54), and (55) are provided at their upper ends with pivot shafts (58) that are rotatably fitted and supported.

Further, each sensor plate (53) (54)
A vertical frame (59) for reinforcement is integrally fixed to the left and right center of the rear side surface which is the reaction surface side of (55), and the rod mounting seat (60) fixed to the bracket and the vertical frame (59) are combined. It is connected via a sensor link mechanism (61) which is a control means, and a standing piece (62) fixed to the tip side of each vertical frame (59) and a standing piece (62) of the central plate (53) and left and right. Standing pieces (6) of plates (54) (55)
Left and right links (65) and (66) having the same length on the left and right, which are connected to each other via the shaft (63) and the long hole (64).
And a single composite link (67) connecting the left and right center positions of the left and right links (65) and (66) via the shaft (63) and the elongated hole (64), and the left and right center of the composite link (67). A pressure rod (70) having a base end connected to a kite-shaped bracket (68) via a rotation shaft (69) and an upper end inserted through the mounting seat (60), and a lower end of the rod (70) adjusted. A spring retainer (72) which is attached through a pin hole (71) so that its position can be adjusted, and a spring retainer (7) of the pressure rod (70).
2) and a pressure spring (74) interposed between the bolt (73) of the mounting seat (60) so that the spring pressure can be adjusted, and the sensor link mechanism (61) has each sensor plate (5) at a predetermined spring pressure.
3) (54) and (55) are configured to be grounded substantially uniformly.

A wire attachment piece (76) is provided on the upper end of the pressure rod (70) through a bolt (75) so that the attachment position can be adjusted, and a pin (7) of the attachment piece (76) is provided.
7), one end of the sensor wire (78) is attached, one end of the outer tube (79) of the wire (78) is fixed to the attachment seat (60), and the ridge coating device is provided via the three-point link mechanism (6). The other end of the sensor wire (78) is connected to a lift valve (80) of a hydraulic lift that moves up and down (7). The sensor arm (82) is attached to the control shaft (81) of the lift valve (80). , An outer receiver (85) for connecting the other end of the wire (78) via a pin (83) and supporting the other end of the outer tube (79) on a top link hinge (84) to which a top link (9) is attached. Is fixed, and when the sensor plates (53) (54) (55) centering on the pivot shaft (52) are moved up or down, the ridge coating device (7) is controlled to move up or down to rotate the rotary plate. (11) It is configured to maintain a substantially constant Kofuka.

The pressure rod (70) and the respective sensor plates (53), (54) and (55) are provided in a state of being substantially parallel to each other in a side view, and their relational angles are formed to be small acute angles. The pressure spring (7) with the pin hole (71) position changed
At the time of adjusting the spring pressure of 4), it is configured to allow fine adjustment of the spring pressure.

By the way, as shown in FIG. 9, when only the left and right sensor plates (54) or (55) are jumped upward due to a malfunction caused by rice stocks or soil clods, the sensor link mechanism (61) is added by the combined action. Pressure rod (7
The amount of movement of 0) is suppressed to a small extent. For example, when only the left sensor plate (54) jumps up above the dimension L due to a malfunction, the left link (65) raises the left end about the axis (63) by the dimension L. , The combined link (67) moves the left end up about the right end shaft (63) by about L / 2, and the pressurizing rod (70) at the center position of this link (67) moves to about L / 4. The amount is reduced to a dead band, and no control is performed. For example, L = 10c
When m, L / 2 = 5c at the right end of the composite link (67)
In the pressure rod (70), L / 4 = 2.5 cm, and 2.5 cm is within the dead zone, and control is not performed.

When only the central sensor plate (53) jumps up above the dimension L due to a malfunction, the left and right links (65) (66) center on the left and right end shafts (63), and the left and right central composite links (67). ) And the left and right connection points are moved up by about L / 2, and the pressure rod (70) at the left and right center of the synthetic link (67) is moved up by about L / 2, and this L / 2 is moved up.
Control the minutes.

In this way, each link (65) (66) (6)
The elongated holes (64) in 7) allow individual sensor plates (5
3) The vertical movements of (54) and (55) are possible, and the movement amounts of the individual sensor plates (53), (54) and (55) are combined and transmitted to the final pressure rod (70), and the ridges are formed. The coating device (7) is controlled to move up and down. Even if one plate (53) (54) (55) operates afterward, the remaining two plates (53) (54) (55) The malfunction is reduced to a small extent, and the return rate for the final control can be lowered, so that highly accurate plowing depth control can be performed regardless of the field conditions.

In the above embodiment, the sensor plate (5
3) The means for mechanically detecting the movements of (54) and (55) has been described, but a configuration may be adopted in which the working depth is electrically detected by, for example, a potentiometer and the working depth is controlled based on the combined value of the electric signals.

[00222]

EFFECTS OF THE INVENTION As is clear from the above embodiments, according to the present invention, the ridge coating device (7) for forming the upper surface and the slope of the ridge by the ridge coating plate (16) can be moved up and down to the traveling vehicle (1). In the ridge coater to be equipped, a plurality of sensor plates (53) (54) (55) for detecting unevenness of the rice field are provided, and the detection operation of these sensor plates (53) (54) (55) is combined to form a ridge. Synthetic control means (6) for raising and lowering the coating device (7)
Since 1) is provided, a plurality of sensor plates (53), (54), and (55) are provided at locations where they can be installed, and even if one of them is hypersensitive, the operation of other sensor plates is performed. The control is stopped or minutely controlled depending on the relationship with, and a remarkable effect such as high-precision control that is not affected by the field conditions can be achieved.

[Brief description of drawings]

FIG. 1 is a rear view of a sensor plate portion.

FIG. 2 is a plan view of the ridge coater.

FIG. 3 is a plan view of the ridge coating device.

FIG. 4 is a rear view of the ridge coating device.

FIG. 5 is an explanatory diagram of a ridge shaping plate portion.

FIG. 6 is a side view illustrating a sensor plate portion.

FIG. 7 is an explanatory diagram of a lift valve unit.

FIG. 8 is an explanatory diagram of a ridge coating drive system.

FIG. 9 is an operation explanatory view of the sensor plate.

[Explanation of symbols]

 (1) Tractor (traveling vehicle) (7) Ridge coating device (16) Ridge shaping plate (53) (54) (55) Sensor plate (61) Sensor link mechanism (composite control means)

Claims (1)

[Claims] 1. A ridge coating machine that allows a traveling vehicle to be equipped with a ridge coating device that forms the upper surface and slope of a ridge by a ridge coating plate, and is provided with a plurality of sensor plates for detecting unevenness of a rice field. A ridge coating machine characterized by comprising synthesis control means for synthesizing the detection operation of the sensor plate and controlling the elevation of the ridge coating device.