JP2005110536A - Folding puddling implement to be mounted on tractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the travel balance of a tractor is deteriorated, especially the problem that the workability of a small tractor is deteriorated, when the weight of a folding puddling implement mounted on the tractor is large. <P>SOLUTION: This backward-foldable puddling implement for the tractor, having a machine frame in which an input shaft is disposed and which outputs a driving force inputted from the input shaft, a shaft 4 for transmitting the driving force from the machine frame, transmission cases for transmitting the driving force from the shaft, and a pair of harrowers driven by an outputted force from each transmission cases, is characterized by disposing each transmission case in the middle of each harrower, and directly rotatably connecting the upper portions of the transmission cases to both the ends of the machine frame through connection pins. Thereby, the weight of the puddling implement can be reduced, and the mounting range of the puddling implement on a small tractor can be enlarged. Further, the number of parts can be reduced to lower the cost. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

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

If the wide crushing device is enlarged, the farm road is full when transported, or it protrudes from the width of the tractor to be attached, causing annoyance to the surroundings, and has been proposed to be folded in two or three. 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

  A conventionally known folding scraping device has an auxiliary frame that supports a work body attached to a main machine frame that is mounted on a tractor. When the weight is heavy and mounted on a small tractor, the front wheel of the tractor floats and travels. There were problems such as instability.

  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, the transmission case body is disposed in the middle of the crushed body body, and a connecting pin is connected between the direct upper portion of the transmission case body and the left and right ends of the machine frame. The folding scraping device to be mounted on a tractor characterized in that it is pivotably attached to the rear via a folding mechanism.

  As described above, the connection case is provided directly on the transmission case body so that the crushed body can be bent with respect to the machine frame, so the auxiliary frame, etc. is eliminated, the weight is reduced, the number of parts is reduced, and the number of manufacturing steps is reduced. Helps reduce costs.

  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 carried out, FIG. 2 is a side view in which one of the crushed bodies is folded, FIG. 3 is a side view in which one of the crushed bodies is omitted, FIG. 4 is a power transmission explanatory diagram, and FIG. It shows a side view of the 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.

  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, a state in which one of the crushed clay bodies 7 is folded rearward through a connecting pin 9 provided at an end portion of the machine frame 2 is shown. The crushed soil body 7 includes a large number of crushed claws 14 provided on the outer periphery of a rotating shaft 20 protruding in the left-right direction from the lower portion of the transmission case body 6 and further includes an upper surface cover 10 covering the upper portion. The upper surface cover 10 is supported by an attachment stay 8 attached to the upper part of the transmission case body 6.

  Reference numeral 15 denotes an engagement piece provided on the left and right sides from the machine frame 2, and constitutes the clutch 5 that engages and disengages with the receiving pin 16 provided inward of the transmission case body 6.

  The connecting pin 9 is attached with its upper end tilted forward in the traveling direction in a side view, and 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 transmission case is almost the same as the track of the tractor and the amount of residual tillage is small.

  FIG. 3 illustrates a side surface state in which one of the crushed clay bodies is omitted, and particularly illustrates the connecting pin 9 located at the end of the machine frame 2. 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. A connecting pin is attached perpendicular to the parallel member at the end of the machine frame 2.

  In FIG. 4, the transmission of power will be described. Reference numeral 3 denotes a mission, and power is transmitted to the front input shaft 1 from the tractor PTO shaft. The input shaft 1 is transmitted to the left and right shafts 4 by a pair of bevel gears built in the mission 3. An engagement piece 15 for forming the clutch 5 is provided at the outer end of the shaft 4. The engaging piece 15 and the receiving pin 16 on the transmission case body 6 side are engaged. The transmission case body 6 is input by a receiving pin 16 and rotates a lower output shaft 18 by a chain conductor incorporated therein. A rotary shaft 20 is connected to the output shaft 18.

  In FIG. 5, the transmission case body 6 will be described. The transmission case body 6 has an attachment stay 8 attached to the upper part. A parallel member is arranged rearward with the receiving pin 16 constituting the clutch 5 facing the machine frame 2 as the center, and is superposed on the parallel member on the machine frame 2 side to support the connecting pin 9. is there. A lower portion of the attachment stay 8 is provided with a support hole 17 for fixing the upper surface cover 10. Therefore, the crushed soil body 7, the upper surface cover 10, and the leveling body 11 can be directly attached to the transmission case body 6. Reference numeral 21 denotes a protective cover provided on the front surface in the traveling direction below the transmission case body 6.

Plan view implementing the present invention Side view of one of the broken bodies Side view without one of the crushed bodies Power transmission explanatory diagram Side view of transmission case body

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Input shaft 2 Machine frame 3 Mission 4 Shaft 5 Clutch 6 Transmission case body 7 Ground breaking body 8 Mounting stay 9 Connecting pin 10 Upper surface cover 11 Leveling body 12 Lower pin 13 Top bracket 14 Ground breaking claw 15 Engagement piece 16 Receiving pin 17 Support hole 18 Output shaft 19 Gas spring 20 Rotating shaft 21 Protective cover

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 the upper part of the transmission case body and the left and right ends of the machine frame can be rotated rearward via connecting pins. A folding scraping device to be mounted on a tractor characterized by being attached.

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