JPH0227911A - Device for rolling of mobile agricultural working machine - 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 Field of Industrial Application This invention relates to a rolling control device for a mobile agricultural working machine, and can be used for a working machine having a float, such as a seedling planting machine.

PRIOR ART AND PROBLEMS TO BE SOLVED BY THE INVENTION When the seedling transplanter has a large left-right inclination, the horizontal posture of the working device may not be maintained sufficiently even with rolling control. Moreover, when the vehicle tilts significantly to one side, it may then suddenly tilt to the opposite side, making rolling control unstable.

(Invention of Claim 1) Means for Solving the Problem This invention detects the inclination of the working device (1) while sliding on the soil surface and moving up and down, and moves the working device (1) from side to side. In a mobile agricultural machine having a float (2) that controls rolling so as to maintain it horizontally.

The rolling device of the mobile agricultural machine is configured to stop the rolling control of the working device (1) by detecting the limit position of the vertical movement of the float (2).

Effects of the Invention The machine body is propelled by the transmission rotation of the traveling axle, and the predetermined work according to the work table W(1) is performed. At this time, a part of the machine body is supported by the sliding of the float (2), but if the machine body supporting force of the traveling axle changes due to the height of the plow, the hardness or softness of the soil, etc., the working device (1) moves to the left or right side. May be tilted. This work table! (1) Or the work machine is
For example, when the vehicle tilts to the left, the rolling control device is activated by vertical movement of the float (2) to roll the working device (1) relative to the vehicle body to the side opposite to the left tilted side; The left traveling wheel is moved downward relative to the vehicle body to control the rolling of the working device (1) in a horizontal horizontal position.

This working device (1) has a large left side inclination, and the float (2)
) When the limit position is detected by the vertical movement of the work device (11), the rolling control of the working device (11) is stopped at the rolling control position at this time.

In this way, in the rolling control of the working device (11),
By detecting the limit position of the vertical movement of the float (2), the rolling control of this work device (11) is stopped, so when the work device (]) is rolled significantly, the float (2) Early detection allows stable work to be performed without rolling control, which is particularly effective under soft soil conditions.

(g! Invention of claim 2) Means for solving problem a1 This invention is a work table that slides on the soil surface and moves up and down! ! This working device (1) detects an inclination of +11.
In a mobile agricultural machine having a pair of left and right floats (2) that perform rolling control to maintain the left and right horizontally,
The rolling device for a mobile agricultural machine is characterized in that it rolls to the opposite side by detecting the vertical movement limit position of either one of the floats (2).

Function and Effect of the Invention In the rolling control as described above, the working device (1)
For example, if the left side tilt is large and the limit position is detected by the vertical movement of the float (2), the working device (J) will perform rolling control, and the 5 working device (1) will roll so that the opposite right side rises. controlled.

As a result, the entire working device (1) is raised, allowing quick and smooth rolling control under soft soil conditions or control conditions where one machine is on the sinking side. .

Example In addition, in the rotation figures 1 to 3, the tractor body (3
) is a front wheel (
5), rear wheels (6), cockpit (7), and engine (8)
), and the rear end is provided with a connecting link (11) that is moved up and down by the expansion and contraction of the hydraulic pressure of the lift cylinder (9).
A rolling axis aδ in the longitudinal direction is provided in the working device (1).
The seedling planting device is rotatably mounted around this rolling axis 0δ.

The seedling planting device consists of a transmission case (+"l) that houses a transmission device that transmits power from a power take-off shaft from the vehicle body (3) side, and a seedling tank opening Φ for storing and supplying seedlings at the top. A seedling planting device 0 is arranged to move back and forth from side to side, and at the rear is a seedling planting device 0 for separating and planting seedlings supplied from the seedling tank α4.
9 are arranged in multiple rows. Float (21Cf
f11 is installed under this transmission case (13) to level the seedling planting position by the seedling planting device (19) facing each seedling planting row.The rear part of each left and right float (2) Cυ is a transmission The transmission case O1 is pivoted to the lower end of an arm (5) that is rotatable about a float shaft (19) transverse to the case (I3), and the front end is vertically swingable and a bending link (Fj).
is connected to the front of the

At the front of the transmission case (131), there is an actuator that can move up and down, a pair of left and right upper limit switches (ML) (HR) that are turned on and off by this actuator (A), and a rolling sensor (CL) ( CR) and a pair of left and right floats (
2) The actuator 121 of the rolling sensor (CL) (CR) is pushed upward by the actuator t2a provided at the front end of the rolling sensor (CL) or (CR).
N, the rolling control motor (M), which can be rotated in forward and reverse directions, is electrically driven to perform rolling control of the working device (1).

The arm (1 arm) supporting the rear part of the float (2) is rotated by the operating arm (to) integrated therewith, and the pivot Oa of each float (2) is moved up and down, and these floats ( Adjust the leveling position according to 2) and place the seedling planting bag [149
The structure is such that the depth at which seedlings are planted can be adjusted. By adjusting this float (2), the rolling sensor (CL)
(CR), actuator SG, upper limit switch (HL) (H
R), a switch case having an arm t24 that rotates integrally with the operating arm, the actuator 2G, and a rolling sensor switch so as to interlock and adjust the position of the O-ring sensor (CL) (CR) switch case 2S1, etc. (to) and the arm Qe that rotates integrally with (24 (29)
Even if the float (2) is adjusted up or down relative to the transmission case (+3), this float (2) and the rolling sensor (CL) can be
The structure is such that the relative position with (CR) does not change.

The lift cylinder (9) is interlocked with the flow in the center of the left and right
When the float [2] is moved up a predetermined area by the sensor switch of the float (2) on both the left and right sides, the lift cylinder (9) is extended and the seedling planting device is moved up. Conversely, when the float (2) is moved down, the lift cylinder (9) is shortened and the seedling planting device is moved down, and the seedling planting device relative to the vehicle body (3) is moved down according to the depth of the soil. Pitching is controlled so that the seedling planting depth is maintained constant by being raised and lowered.

Regarding the rolling configuration, around the rolling axis 0 of the mounting link (1υ), there is a transmission case (131) of the seedling planting device,
The control arm 121 is rotatably provided, and the front end of the transmission case 03 is provided with a spring mounting arm that is T-shaped when viewed from the front.
are integrated. A spring hook O1 is provided above the mounting link (1υ), and a spring 0υ is tensioned between this spring hook O1 and both left and right sides of the seedling tank θ4.

The control arm is extended and contracted by hydraulic pressure between the arm provided integrally with this spring hook, which works to maintain balance due to the shift of the center of gravity due to the lateral movement of the seedling tank 04, and the control arm. A rolling cylinder (to) is provided, the spring hook (to) and both ends of the spring mounting arm (to) are tension-connected by a spring (to), and both ends of this spring mounting arm (to) are connected under tension. The arms (T) protruding on both left and right sides of the connecting link (11) are connected by springs (to), and the seedling planting device is attached to the vehicle body by the rolling cylinder 03 expanding and contracting against these springs a4 (to). This is a rolling configuration for (3).

The rolling sensor (CL) (CR) rotates the motor (M) of the rolling cylinder (toward) in the forward or reverse direction, changes the length of the cylinder piston due to screw engagement, and connects the control arm ( ) around the rolling axis 0.

Further, the rolling sensors (CL) (CR) are provided with left and right upper limit sensors (HL) (HR) for detecting the upper limit position of the actuator (to) pushed by the upward movement of the float (2). By turning ON and OFF the contacts (R1) and (R2) of the circuit of the motor (M) for rolling control, the motor (M) which is under rolling control is stopped and the rolling control is stopped.

If the aircraft tilts to the left, the left float (2
) moves up and the rolling sensor (CL) turns on, the motor (M) is energized to shorten the rolling cylinder (to) and roll the seedling planting device in the direction in which the left side rises. At this time, despite the upward rolling to the left, when the upper limit switch (HL) is turned on due to the upward movement of the left float (2), the relay contact (R1) becomes 0.
FFL, stop lever rolling control. Also, conversely,
Rolling control is performed in the same way by tilting the aircraft to the right. At this time, the motor (M) rotates in the reverse direction, the rolling cylinder 03 is extended and rolled upward to the right, and when the upper limit switch (HR) is turned on, the relay contact (R2) is set to 0FFL, and the rolling control of the lever is stopped.

When the left and right floats (2) are moved up significantly in this way, the rolling control moves the working device (1) to the vehicle body (
Regardless of the horizontal inclination in 3), the posture is controlled to be horizontal on the left and right, but this rolling control can be interrupted to perform work without further rolling.

In Figure 4, the upper limit switch (HL) or (HR)
By turning ON, relay contacts (R1) (R2)
Rotate the motor (M) in the reverse direction and check the rolling sensor (C).
L) Following the rolling control by (CR), further rolling is performed in the opposite direction to this control direction to raise the entire working device (1).

[Brief explanation of the drawing]

The figures show an embodiment of the invention, and Figure 1 is a side view;
FIG. 2 is a partial front view, FIG. 3 is a control circuit diagram, and FIG. 4 is a control circuit diagram of another embodiment. In the figure, code (1) is the working device, (2) is the float, and (C
L), (CR) are rolling sensors, (HL), (HR
) indicates the upper limit switch, and (M) indicates the motor.

Claims (1)

[Claims] 1. The working device (1) slides on the soil surface and moves up and down.
) in a mobile agricultural machine having a float (2) that detects the inclination of the float (2) and performs rolling control to maintain the working device (1) horizontally horizontally. A rolling device for a mobile agricultural working machine configured to stop rolling control of the working device (1) upon detection. 2 The work equipment (1) slides on the soil surface and moves up and down.
), the mobile agricultural machine has a pair of left and right floats (2) that perform rolling control to maintain the working device (1) horizontally by detecting the inclination of the float (2). By detecting the limit position of vertical movement,
A rolling device for a mobile agricultural machine characterized by rolling to the opposite side.