JP2005124522A - Foldable puddling implement installed on tractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve leveling action of leveling bodies in a foldable puddling implement and improve traveling balance when installed on a tractor. <P>SOLUTION: The foldable puddling implement has a machine frame for outputting driving force input from an input shaft, a shaft for transmitting driving force from the machine frame, a transmission case body for transmitting driving force from a shaft and a pair of crushing bodies driven from output from the transmission case body. In the puddling implement, the transmission case body is arranged in the intermediate part of the crushing bodies and the direct upper parts of the transmission case bodies are posteriorly rotatably attached through connecting pins to right and left ends of the machine frame. In the puddling implement, leveling bodies are connected to the rear lower part of each soil-crushing body and the outside of each leveling body has a structure nearly vertically swinging to the each machine frame of a connecting body of each leveling body and each soil-crushing body by using the inside close to center of the machine body of each leveling body. Thereby, the leveling bodies are operated vertically and horizontally swingably and integrally to right and left to the soil-crushing bodies to improve leveling action. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a folding configuration of a scraping device having a wide working width.

When a wide crushing device is increased in size, the farm road is full when it is transported, or it protrudes from the width of the tractor to be attached so as to disturb the surroundings. For example, according to the same application, “a machine frame that is provided with an input shaft and outputs a driving force input from the input shaft, a shaft that transmits the driving force from the machine frame, a transmission case that transmits the driving force from the shaft, It consists of a working part that is driven by the output from the transmission case and that is mounted on the output side of the machine frame so that it can be bent horizontally and rearward on the opposite side to the power side, and the transmission case is closer to the input shaft than the center of the working part There is known an “agricultural working machine” which is provided and transmits a driving force to a working unit at the same position. (Patent Document 1)
No. 7-42247

  In a conventionally known folding scraping device, the left and right leveling bodies are provided so as to be swingable with respect to the ground breaking body. The In addition, when the left and right leveling bodies are simply connected, there is a problem that if the tractor tilts due to entering the concave of the cultivator, etc., the ground breaking body and the leveling body simultaneously tilt and the leveling action is impaired. In particular, in a small tractor, if the weight of the airframe is heavy, the running balance deteriorates, and the work is difficult, so it is necessary to reduce the weight.

  In order to solve the above problems, a machine frame that is provided with an input shaft and outputs a driving force input from the input shaft, a shaft that transmits the driving force from the machine frame, and a transmission case body that transmits the driving force from the shaft And a pair of crushed bodies driven by the output from the transmission case body, and the transmission case body are arranged in the middle part of the crushed body body, the direct upper part of this transmission case body, the left and right ends of the machine frame and the connecting pins In the folding scraper to be mounted on a tractor that is rotatably attached to the rear, a ground leveling body is connected to the rear lower part of each ground breaking body, and a machine frame of a connecting portion of the ground leveling body and the ground breaking body On the other hand, the outside provides a folding scraping device to be mounted on a tractor characterized by being connected so that it can swing up and down about the inside of the leveling body near the center of the machine frame.

  With the configuration as described above, since the transmission case body is directly provided with the connecting pin so that the crushed body can be bent with respect to the machine frame, the auxiliary frame and the like are eliminated, contributing to weight reduction. In addition, the left and right leveling bodies at the time of cutting work operate so as to be swingable to the left and right with respect to the crushed body, and even if the side of the crushed body mounted on the tractor is inclined, the left and right leveling bodies remain horizontal. Maintaining and leveling action is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a plan view in which the present invention is implemented, FIG. 2 is a rear view, FIG. 3 is a side view, FIG. 4 is a side view in which one of the crushed bodies is omitted, and FIG. Shows an explanatory diagram of the leveling action of the leveling body.

  In FIG. 1, reference numeral 1 denotes an input shaft, which is not shown, but is provided in the mission 3 to which power is transmitted from the PTO shaft of the tractor. Reference numeral 2 denotes a machine frame, which supports the mission 3 in the center and disposes the ground breaking body 7 on the left and right. Reference numeral 12 denotes a lower pin which is disposed in front of the machine frame 2 on the left and right sides and is attached to the rear portion of the tractor. Reference numeral 10 denotes an upper surface cover, which covers the upper surface of the crushed soil body 7. Reference numeral 11 denotes a leveling body, which smoothes the mud ground crushed by the crushed body 7.

  The leveling body 11 includes a first pressure plate 112, a second pressure plate 113, and a connected pressure plate 114. The first pressure plate 112 and the second pressure plate 113 are pivotally supported so that they can swing up and down, and the first pressure plate is connected to the upper surface cover 10 by a swing arm 21a and an inner fulcrum pin near the center of the machine frame. ing. As a result, the leveling body 11 is swingable up and down and left and right with respect to the crushed body 7 and operates in unison with the left and right.

  Reference numeral 6 denotes a transmission case body, which transmits the driving force from the machine casing 2 to the crushed soil body 7. Reference numeral 8 denotes attachment stays assembled to the left and right of the upper half of the transmission case body 6. Both ends of the mounting stay 8 and the machine casing 2 are rotatably attached by connecting pins 9. Reference numeral 19 denotes a gas spring which serves as a buffer when the left and right crushed soil bodies are folded.

  In FIG. 2, the connecting pin 9 provided at the end of the machine frame 2 and the pressure-reducing plate rotation pin 9a of the connection pressure-reducing plate 114 and the second pressure-reducing plate 113 are in the vicinity of the respective axis extension lines AA ′. If the ground breaking body 7 is folded, the leveling body 11 is also folded.

  In FIG. 3, a swing arm 21 a provided on the outer surface cover 10 a of the upper surface cover so as to be vertically rotatable supports the outer rotation pin 22 a of the first pressure plate 112 of the leveling body 11.

  FIG. 4 shows a side state in which one of the crushed bodies is omitted, and the parallel members constituting the end of the machine frame 2 are provided so as to rise rearward with respect to the center of the engagement piece 15 of the output shaft. The rearward tilt angle is set to 30 to 45 degrees in this embodiment. The connecting pin 9 is attached perpendicular to the parallel member at the end of the machine frame 2.

  When the crushed soil body 7 is rotated backward, the crushed soil body 7 is folded upward. Since the transmission case body 6 is arranged near the center with respect to the length of the crushed soil body 7, even when the transmission case body 7 having a large weight composition ratio is folded, it does not move and change to the rear end with respect to the tractor. The driving balance will not be lost.

  The inner turning pin 22b of the first pressure plate 112 of the leveling body 11 is loosely passed through the inner side surface cover 10b of the upper surface cover with an appropriate gap, and a fulcrum when the outer side of the leveling body 11 swings and It is a fulcrum when the leveling body rotates up and down.

  FIG. 5 is a perspective view of the swinging portion of the leveling body 11. The gist of the present invention is that the outer side of the leveling body 11 swings in the vertical direction, and the inner side becomes a fulcrum of the swing. The thing provided with the long hole for is also included.

  FIG. 6 shows the leveling action of the leveling body. The left and right first pressure-reducing plates 112 and the second pressure-reducing plates 113 are pivoted up and down integrally by a central connection pressure-reducing plate 114 and swing left and right by the action of the left and right outer swing arms. For this reason, even if the tractor tilts due to the unevenness of the cultivator, the leveling body remains horizontal and leveling action is obtained.

Plan view implementing the present invention Rear view Side view Side view without one of the crushed bodies Perspective view of leveling body swinging part Illustration of leveling action of leveling body

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Input shaft 2 Machine frame 3 Mission 6 Transmission case body 7 Crushed material 8 Attachment stay 9 Connection pin 9a Pressure plate rotation pin 10 Upper surface cover 10a Outer surface cover 10b Inner surface cover 11 Ground leveling body 112 First pressure suppression plate 113 Second pressure suppression Plate 114 Connection pressure plate 12 Lower pin 13 Top bracket 14 Crushing claw 15 Engagement piece 19 Gas spring 20 Rotating shaft 21a Swing arm 22a Outer rotating pin 22b Inner rotating pin

Claims (1)

A machine frame that is provided with an input shaft and outputs the driving force input from the input shaft, a shaft that transmits the driving force from the machine frame, a transmission case body that transmits the driving force from the shaft, and an output from the transmission case body The pair of crushed clay bodies and the transmission case body are arranged in the middle part of the crushed earth body, and are attached to the upper part of the transmission case body, the left and right ends of the machine frame, and the connecting pins so as to be rotatable rearward. In the folding scraper to be mounted on the tractor, a ground leveling body is connected to the rear lower part of each ground breaking body, and the outside of the ground leveling body and the ground breaking body is connected to the machine ground. A folding scraper to be mounted on a tractor, which is connected so that it can swing up and down substantially with the inside near the center of the machine frame as a fulcrum.

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