JPH09215405A - Soil crushing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the constitution formed by combining a motor-driven cylinder to fold the extension plates of the soil crushing device which is mounted on a tractor and receives power transmitted from the tractor. SOLUTION: This soil crushing device is mounted on the tractor and the power is transmitted from the tractor; and ground leveling plates 1 and 2 are fitted behind a soil crushing body 9, and an extension ground leveling plate 4 is pivoted on both the right and left ends of the ground leveling plates 1 and 2 rotatably between a working position and a storage position. The right and left extension plates are pivoted on both the side parts of the ground leveling plates 1 and 2 through shaft bodies, on which a rotary link plate 8 is pivoted. The upper part of this rotary link body and the ground leveling plates 1 and 2 are coupled together by the motor-driven cylinder, a long hole 14 is bored in the lower part of the rotary link body, and the pin 11 on the side of the extension ground leveling plate 4 is made to penetrate it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved ground leveling plate for a soil crushing device which is mounted on a tractor and transmits power from the tractor.

[0002]

2. Description of the Related Art Conventionally, as a technique for folding and rotating an extended ground leveling plate of an earth breaking device, Japanese Utility Model Publication No. 55-4965 is known. According to this known technique, both sides of the ground plate are rotatably connected to each other by a shaft rod, a support rod and a link member are provided, and a rope is connected to the tip of the support rod while being elastically attached by a coil spring, and the rope is connected from the tractor to the seat. It is a remote control for work and storage while riding. In Japanese Utility Model Publication No. 61-3284, a substitute soil leveling device having a pair of extension plates movably in the width direction on both the left and right sides of the alternate soil leveling plate is used. A hydraulic cylinder that matches the width direction of the leveling plate is movably provided in the width direction, and each extension plate is attached to each end in the axial direction of the hydraulic cylinder in order to move each extension plate by expanding and contracting in the axial direction of the hydraulic cylinder. A configuration linked to is disclosed.

[0003]

By the way, the above-mentioned former one of the above-mentioned publicly known ones is one in which a long operating wire is stretched to perform remote control. However, recently, a tractor cabin (driver's cab) which has become widespread is used. Control is impossible. In the latter of the above-mentioned known techniques, the extension plate is moved in the width direction by a hydraulic cylinder, but it has a drawback in that the hydraulic piping and the like are largely equipped and the weight is heavy and cannot be reduced.

[0004]

In order to solve the above problems, the grounding plate is mounted on the tractor so that power can be transmitted from the tractor, and the grounding plate is provided at the rear of the crushed body and extended and straightened at both left and right ends of the grounding plate. In the soil crushing device in which a ground plate is pivotally attached to a working position and a storage position, the extended ground leveling plate is pivotally attached to both sides of the ground leveling plate via shafts, and a rotary link plate is attached to the shafts. The earth crushing device is pivotally supported, the upper part of the rotary link body and the ground leveling plate are connected by an electric cylinder, and a pin on the extended ground leveling plate side is passed through an elongated hole formed in the lower part of the rotary link body. It was provided.

[0005]

With the above structure, the extended ground leveling plate of the crushing apparatus of the present invention is rotated about the shaft body to the working position and the storage position when the switch of the electric cylinder is turned on. The tractor can be controlled inside the cabin and has a lightweight structure.In addition, at the working position, the extended ground leveling plate is elastically attached by the length of the long hole of the rotating link plate, so that it can be adjacent to the mud condition of the paddy field. The overlapping of the leveling boundary points that have the effect of gently squeezing the ground has the effect of being gently suppressed. Further, the coil spring is concentric with the shaft body in the state where the extended ground leveling plate of FIG. 2 is erected, and is installed and crimped on the storage side or the working position side beyond this fulcrum.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the present invention. Although not shown as a crushed body, 9 is connected to the rear part of the tractor and power is transmitted from the PTO shaft to drive a conventionally known crushed body. An upper cover 10 covers the crushed soil portion, and a first ground plate 2 is connected to the rear end of the upper cover 10 so as to be vertically swingable.

Reference numeral 1 denotes a second leveling plate, which is the first leveling plate 2 described above.
It is swingably connected with a metal fitting 13. An extended ground leveling plate 4 is rotatably connected to both side edges of the second ground leveling plate 1 via a shaft body 3.

A rotary link plate 8 having an arc-shaped long hole 14 is pivotally attached to the shaft body 3, and a piston of the electric cylinder 5 is mounted on an upper portion of the rotary link plate 8 via an auxiliary metal fitting 19. Connect with the rod 7. A pin 11 that is horizontally provided on a support bracket 18 provided on the upper surface of the extended ground leveling plate 4 is inserted into the elongated hole 14. Reference numeral 12 denotes a spring, which is stretched over the side edge of the second leveling plate 1 and the extended leveling plate 4 and is elastically attached in a direction in which it is normally pressed onto the rice field. Depending on the state of the mud in the paddy field, the extension ground leveling plate 4 appropriately swings within the range of the long hole 14 of the rotary link plate 8 with the shaft body 3 as a fulcrum.

FIG. 2 shows a state in which the electric cylinder 5 provided on the upper surface of the second leveling plate 11 is shortened and the extended leveling plate 4 is rotated about the shaft body 3 on the side edge of the leveling plate as a fulcrum. Is. The piston rod 7 of the electric cylinder 5 is an auxiliary fitting 19
The extension link plate 8 is rotated by pulling the rotation link plate 8 and simultaneously pulling up the pin 11 inserted in the long hole 14. At this time, the spring 12 is 90
On the extension side up to the position of the shaft body 3 which has been rotated, when the shaft body 3 is crossed, it is crimped to the storage side.

FIG. 3 shows a state in which the state of FIG. 2 is slid and folded by the length of the long hole 14 of the rotary link plate 8 by the pulling force of the spring 12.

FIG. 4 is an explanatory view of the operation and shows a working state, in which the extended ground leveling plate 4 is aligned with the bottom surface of the ground leveling plate 1. At this time, with respect to the long hole 14 of the rotary link plate 8 pivotally attached to the shaft body 3,
The pin 11 provided on the support bracket 18 is slidable upward, and is elastically attached downward by the spring 12 described above.

FIG. 5 is a cross-sectional explanatory view showing the structure of the electric cylinder. Reference numeral 15 is a DC motor, and a reduction unit 16 is directly connected to the DC motor 15, and the reduced rotational force is applied to the propelling screw 1.
Communicate to 7. The rotation of the propelling screw 17 causes the piston rod 7 to expand and contract with respect to the tube 6. Although not shown, the DC motor 15 is connected to the battery of the tractor, and its control is operated by a switch in the cabin.

[0013]

With the above-mentioned structure, folding of the ground leveling extension plate of the crushed body can be reliably instructed from inside the tractor cabin by the compact electric cylinder, and can be moved within an appropriate movable range during operation and storage. Be worn.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a folded state diagram of a main part.

[Figure 3] Storage state diagram

FIG. 4 is an explanatory diagram of operation

FIG. 5 is an explanatory diagram of an electric cylinder

[Explanation of symbols]

 1 2nd leveling plate 2 1st leveling plate 3 Shaft body 4 Extension leveling plate 5 Electric cylinder 6 Tube 7 Piston rod 8 Rotating link plate 9 Crushed body 10 Upper cover 11 Pin 12 Spring 13 Metal fitting 14 Long hole 15 DC motor 16 Deceleration Part 17 Propulsion screw 18 Support bracket 19 Auxiliary bracket

Claims (1)

[Claims] 1. A tractor is mounted so that power can be transmitted from the tractor, a ground leveling plate is provided at the rear of the crushed body, and extension ground leveling plates can be pivoted between a working position and a storage position at both left and right ends of the ground leveling plate. In the pivoted soil crushing device, the extended ground leveling plate is pivotally attached to both sides of the ground leveling plate via a shaft body, and the rotary link plate is pivotally supported on the shaft body to align with the upper part of the rotary link body. A grounding device in which a ground plate is connected by an electric cylinder, and a pin on the extension ground plate side is passed through a long hole formed in the lower portion of the rotary link body.