JPH07308104A - Farm working machine - Google Patents

Abstract

PURPOSE:To obtain a farm working machine with a working machine such as a rice transplanting device mounted on a traveling vehicle so as to enable the device to make rolling motion, designed to enable a rolling control device to be equipped without troubling the attaching/detaching operations for the working machine. CONSTITUTION:In this farm working machine with a working machine mounted on a traveling vehicle so as to enable the machine to make rolling motion, an engaging member 95 for attaching/detaching the machine is equipped thereto so as to be free to make rolling motion, and the engaging member 95 is made engageable with the traveling vehicle to make the machine detachable onto the traveling vehicle and a rolling control device 94' is provided to control, the rolling motion of the machine through the engaging part of the member 95.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural work machine in which a working machine such as a rice transplanter is mounted on a traveling vehicle body so as to be capable of rolling.

[0002]

2. Description of the Related Art A rice transplanter in which a rice transplanter is rotatably connected to a traveling vehicle body equipped with a lifting device for lifting a working machine through a rolling member is used. In this type of rice transplanter, when the connected rice transplanter is lifted by the lift device, the rice transplanter may rotate around the rolling member due to the left and right weight imbalances. It is necessary to provide a rolling lock device capable of locking the wheel, and a proposal in this regard has also been made.

[0003]

However, in the above-described conventional rolling lock device, it is necessary to attach and detach the rolling lock device every time the rice transplanter, which is a working machine, is attached and detached, which requires time and effort to attach and detach the working machine. There was a problem.

[0004]

The present invention has the following constitution in order to solve the above problems. That is, an agricultural work machine according to the present invention is an agricultural work machine in which a working machine is mounted on a traveling vehicle body so as to be capable of rolling. A rolling member that allows the working machine to be attached to and detached from the traveling vehicle body by making the member engageable with the traveling vehicle body, and that regulates the rolling of the working machine through the engaging portion of the engaging member. The feature is that a regulation device is provided.

[0005]

When the working machine is mounted, the rolling restriction device can be operated by the rolling restriction device through the separable engaging portion without requiring any additional connecting work, and when the working machine is removed, no additional removing work is required. The rolling restriction device is separated at the engaging portion. Therefore, in the mounted state of the working machine, it is possible to equip the rolling restriction device capable of restricting the rolling motion with respect to the traveling vehicle body without bothering the working machine.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments shown in the drawings will be described below. FIG. 1 shows a riding-type rice transplanter. This rice transplanter 1 has an engine stand 3 at the front of a mission case 2.
The bases of the chain cases 4 and 4 extending rearward are attached to the left and right sides of the mission case 2. Rear wheels 5 and 5 are pivotally supported at the rear ends of the chain cases 4 and 4, and are driven by power transmitted from a transmission device in the transmission case 2 via a chain stretched inside the chain cases 4 and 4. It is designed to be rotated.
Front wheels 6 and 6 are provided on both left and right sides of the engine base 3 so as to be capable of turning. The engine installed on the engine base 3 is covered with a hood 7.

A passenger seat 8 is provided on an upper portion of a rear view gate type frame 9 which connects the left and right chain cases 4 and 4 to each other. Inside the gate-shaped frame 9, the protrusion frames 14 and 14 are provided.
Is provided, and one upper link 16 is rotatably supported in the space. Further, a pair of left and right lower links 17, 17 are provided in parallel with the upper link 16, and the front ends thereof are rotatably attached to the projecting frames 14, 14.
Rear ends of the upper and lower links 16, 17, 17 are attached to the connecting frame 20. These upper and lower links 16, 17,
17, the protruding frames 14, 14 and the connecting frame 20 constitute a parallel link device 21 which can be turned up and down as a whole.

The arm 25 provided on the upper link 16 has
A piston rod of a hydraulic cylinder 24 pivotally attached to the mission case 2 is connected. When the hydraulic cylinder 24 is extended, the upper link 16 is swung upward.

The rice transplanter 26 is provided with a seedling tank 28 that is inclined so that the upper front side of the transmission case 27 that also serves as a rice transplanter frame is in a higher position, and a planting claw 29a is provided at the tip end of the rice transplanter 26. The planting rod 29 is provided for taking out one seedling from the seedbed placed on the seedling tank 28 while moving up and down and planting it in the field. Transmission case 27
On the lower side, one center float 30 and a pair of left and right side floats 31, 31 are pivotally mounted so as to be vertically rotatable. A hydraulic valve 32 for detecting vertical movement is provided in the front part of the center float 30, and when the float moves upward, the hydraulic cylinder 24 is extended to lift the rice transplanter 26, and when the float moves downward, the hydraulic pressure is increased. The cylinder 24 is contracted to lower the rice transplanter.

Next, the rice transplanter 26 includes a lateral movement device 40 for laterally reciprocating the seedling tank and a seedling tank 2.
A seedling feeding device 41 for feeding the seedbed is provided at the end of the moving path of 8. The rotational power that drives these devices is transmitted from the main body side to the input shaft 43 via the belt 44, and is transmitted from the input shaft to the intermediate shaft 46 via the chain 45. The intermediate shaft 46 is connected to the planting rod drive shafts 48, 48, ... Via chains 47, 47, ..., and drives the planting rod. The intermediate shaft 46 is connected to the lead cam shaft 51 of the lateral movement device 40 via the transmission device 50. A spiral groove is cut on the outer peripheral portion of the lead cam shaft 51, and the claw 53 of the lead metal 52 is engaged with the groove. Arm 54 provided on lead metal 52
Has a feed rod 57 attached to the seedling tank 28. When the lead cam shaft 51 rotates, the claw 53 engaging with the spiral groove moves laterally along the groove,
The seedling tank moves laterally as a unit.

A drive gear 60 of the seedling feeding device 41 is fixed to one end of the lead cam shaft 51, and a driven gear 61 meshes with the drive gear 60. Driven gear 61
Is eccentrically attached to the shaft 62, and the shaft 62
Arms 63, 63 are provided at both ends of the. The arms 63, 63 engage with the feeding device 65 on the seedling tank side at the end of the moving path of the seedling tank 28, and the belt 72
Is linked to the seedling feeding direction (downward in the figure). Since the belt 72 has a large number of pointed projections on its surface and engages with the back surface of the seedbed on the seedling tank 28, the arm 63 moves the seedbed to the take-out position at the lower end of the seedling tank 28. Of.

Next, a connecting frame 20 is provided at the rear end of the parallel link 21 provided on the traveling vehicle body 1a of the rice transplanter 1. A connecting plate 83 'is provided at the rear end of the connecting frame 20.
Is integrally provided, a round bar 84 is integrally provided at the upper end of the connecting plate, and rotating hooks 87, 87 which are constantly urged in the engaging direction by springs 85 are attached to both sides. ing. On the other hand, the transmission case 2 on the working machine 26 side
7 Rolling member 80 'is rotatable on the front part about the axis
And a plate-like hook 90 is integrally provided on the front surface of the rolling member 80 '. Further, the lower links 17, 17 of the parallel link device 21 are integrally provided with a plate-like engaging member 95 projecting obliquely downward, and a round bar-shaped rolling stopper is provided at the lower front surface of the transmission case 27 of the working machine. 96 is fixed. The plate-shaped hook 9
Pins 91, 91 with which the rotary hook 87 is engaged are provided on both side surfaces of the lower part of the pin 0.

In this riding-type rice transplanter, the rice transplanter 26, which is a working machine, engages the plate-like hook 90 with the round bar 84 at the upper end of the connecting plate 83 'to rotate the hooks 87, 87 into the pins 91 ,.
By engaging with 91 respectively, the vehicle body 1a is mounted in a rolling manner. This attachment / detachment work is extremely easy.

During the rice planting work, the working machine is freely rolled by the rotation of the rolling member. On the other hand, when the working device 26 is lifted by the lift device 23 during turning,
As indicated by the chain line, the engaging members 95, 95 contact the rolling stopper 96 to regulate the rolling of the working machine.

In the present embodiment, the rolling regulation device 94 '
The engaging member 95 that moves by the lift device is provided on the traveling vehicle body 1a side, and the fixed rolling stopper 96 with which the engaging member 95 engages is provided on the working machine side. As is apparent from the figure, it is convenient because the rolling regulation device 94 'does not need to be specially attached and detached when the work implement is attached and detached.

Next, the rice planting device 26 includes a seedling tank 28.
An apparatus for preventing the imbalance of the weight in the left-right direction due to the lateral movement of the will be described.

As shown in FIG. 2, a worm gear device 100 is provided at the end of a lead cam shaft 51 for laterally feeding the seedling tank 28. That is, the worm 101 is attached to the end of the lead cam shaft 51, the shaft 102 extending forward so as to be orthogonal to the lead cam shaft 51 is provided, and the worm wheel 103 meshing with the worm 101 is attached to the rear end thereof. There is. The reduction ratio of the worm gear device 100 is, for example, 1/12 when the planting rod 29 takes out the seedling 12 times by moving the seedling tank 28 once, and when the seedling tank 28 comes to the end, the worm gear device 100 is warmed. The wheel 103 is designed to rotate exactly once.

An arm 105 protruding in the lateral direction is attached to the front end of the shaft 102 of the worm wheel 103, and one end is fixed to the rolling boss 107 which is the housing of the rolling shaft 106 at the tip of this arm. The adjusting spring 109 is fixed. Arm 105
When the seedling tank 28 reaches the end of the moving stroke, the seedling tank 28 is most protruded toward the end. As shown in FIG. 5, the transmission case 27 is fixed to the ends of suspension springs 111, 111 stretched on both left and right sides from a suspension rod 110 provided on the coupling frame 20 of the traveling vehicle body 1a.

In such a structure, when the seedling tank 28 reaches one end of the moving stroke, the load on that side increases, so that the entire rice transplanter tries to rotate about the rolling shaft 106. At this time, since the arm 105 is in the most protruding state to the side, the adjusting spring 109 is in the most stretched state, and the force for hanging the weight-increased side of the rice planting device 26 becomes large, so that the rolling due to the load of the seedling tank is prevented. It is prevented. This force decreases as the seedling tank 28 moves in the opposite direction.

[0020]

As is apparent from the above description, the agricultural working machine according to the present invention is provided with a rolling device for rolling the working machine according to the left and right inclination of the tiller, and the working machine. Since the rolling restriction device for restricting the rolling at the time of lifting is provided, the stability of the machine body is good and it is safe. When the work implement is installed, the rolling regulation device can operate the rolling regulation through the separable engaging part without requiring any additional connection work, and when the work implement is removed, the rolling regulation does not require separate removal work. The devices are separated at the engaging portion. Therefore, it becomes possible to equip the rolling regulation device capable of regulating the rolling motion with respect to the traveling vehicle body with the working machine mounted, without troublesome work machine mounting and demounting work, which is extremely convenient in practice. Became.

[Brief description of drawings]

FIG. 1 is a side view of a rice transplanter showing an embodiment of the present invention.

FIG. 2 is a rear view showing the mechanism.

FIG. 3 is a plan view thereof.

FIG. 4 is a side view of the main part.

FIG. 5 is a perspective view of a seedling tank suspension unit.

[Explanation of symbols]

 1 rice transplanter 1a traveling vehicle body 2 mission case 4 chain case 5 rear wheel 6 front wheel 26 rice transplanter (working machine) 27 transmission case 28 seedling tank 29 planting rod 40 lateral movement device 41 seedling feeding device 51 lead cam shaft 80 'rolling member 83 'Connecting plate 90 Plate hook 94' Rolling regulating device 95 Engaging member 96 Rolling stopper

Claims (1)

[Claims] 1. An agricultural working machine in which a working machine is rollably mounted on a traveling vehicle body, wherein an engaging member for attaching and detaching the working machine is provided on the working machine in a freely rotatable manner, and the engaging member is provided on the traveling vehicle body. The working machine can be attached to and detached from the traveling vehicle body by being engaged with the rolling machine, and a rolling restriction device for restricting the rolling of the working machine via the engaging portion by the engaging member is provided. Agricultural work machine characterized by that.