JP2008125381A - Side cover for puddling implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple puddling implement of low manufacturing cost which avoids problems, including mud or muddy water running off to the outside of the flank of its tilling part, even at high-speed operation, and the plowing performance becoming poor due to running off of impurities, and which has a structure that has fully secured the strength of a stand-attaching part. <P>SOLUTION: The puddling and soil-crushing implement has a constitution, wherein a pair of side covers 7 is furnished in overhanging manner, in front of a tilling rotary cover 51 on both sides in the front of a tilling rotor 50; and the edge rim in the front of a side plate 40 holding the left and right of the tilling rotor 50 is bent outward to the left and right, and projects to serve the resulting bent surface as a side cover 7-attaching face. The outer surface of the side cover 7 is furnished with a stand-attaching holder 70, and at the front part of the holder 70, a tilling rotor cover side plate 510 and the side covers 7 are fixed with tightening bolts 71. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a scraping work machine mounted on a tractor, and more particularly to a cover part that regulates and guides mud jumping out of a tillage part during work.

2. Description of the Related Art Conventionally, there is known an agricultural machine that is attached to a tractor, has a tilling rotor and a leveling body, and is used for tilling / plowing work in a field or paddy field. Moreover, in these working machines, agricultural working machines provided with a cover for restricting scattering of tilling soil in front of the tilling rotor are disclosed in, for example, Japanese Utility Model Laid-Open No. 55-152908 (Patent Document 1) and Japanese Utility Model Laid-Open No. 59-18803. (Patent Document 2) is disclosed.
Japanese Utility Model Publication No. 55-152908 Japanese Utility Model Publication No.59-18803

  In recent years, in plowing work and plowing work, it has been required to increase the work speed in order to shorten the work time, etc. Has been needed. The muddy soil cultivated by the tilling rotor and stirred together with the water in the scraping work has improved fluidity, and coupled with the mud and muddy water carried forward by the tilling rotor, the mud and muddy water move forward as the work is performed at high speed. It becomes easy to be extruded. As a result, some of the mud and muddy water that has been pushed out flows to the outside of the front tilling work side and the side part rises, causing inconvenience in leveling, and the infiltration performance due to the outflow of impurities. There were problems such as getting worse.

  In addition, when the agricultural machine is removed from the tractor, the attitude of the work machine does not become unstable, and a connecting frame (called a quick coupler or auto hitch) that standardizes the top link and the left and right lower links When using a work equipment connection device that connects the tractor and the farm work machine, there is a problem in that it cannot be connected at the time of installation unless the posture when removed is maintained. In order to hold a heavy agricultural machine and stabilize its posture, the stand is required to have a certain level of strength and is not used at the time of original work. Was desired.

  The “spattering soil prevention plate in the tilling device” described in the above-mentioned Patent Document 1 is supposed to jump out to the side due to the scattering of soil forward in the field farming land, and the amount of forward protrusion is small. It is not sufficient to prevent the mud and muddy water from flowing out at the time, and the strength of the mounting part is not sufficient. In addition, the “restoration device for a rotary working machine” described in Patent Document 2 has a stand function in which the front and rear side covers for preventing the scattering of soil cooperate with the outer peripheral part of the rotary working part. As mentioned above, the amount of forward protrusion is small, and it cannot be said that it is sufficient to prevent mud and muddy water from flowing out during scraping. Since the cover is also used as a cover, the strength of the entire cover and the strength of the mounting portion are required, which increases the manufacturing cost. Moreover, it is a structure which cannot provide the caster wheel effective for the movement at the time of storage, etc.

  For this reason, the object of the present invention is that there is no inconvenience that mud and mud flow out to the outside of the side of the tillage work part even in high-speed work with a scraper, and the throwing performance deteriorates due to the outflow of foreign matters. This is a scraping work machine that does not have any problems, and has a structure that secures the strength of the mounting part of the stand sufficiently, and the stand can hold the posture of the scraping work machine stably and surely, and it is simple and increases the manufacturing cost. It is to provide a work machine that can not be used.

  In order to solve the above-mentioned problem, a tilling work unit that is attached to the rear part of the tractor and is configured to be capable of rotary tilling is provided in the width direction of the tractor and a tilling rotor cover is provided on the upper part, and the rear part of the tilling work part In the scraping and crushing work machine in which the leveling body is provided so as to be rotatable up and down, a pair of side covers are provided on both sides in front of the tilling rotor so as to protrude forward from the tilling rotor cover, and the front edge of the side plate that holds the left and right of the tilling rotor is left and right. Bending outward and projecting, the bent surface is used as a side cover mounting surface, and a stand mounting holder is provided on the outer side surface of the side cover. At the front of the stand mounting holder, the tiller rotor cover side plate and the side cover And a ground crusher working machine characterized by being fixed by fastening bolts.

  As described above, a pair of side covers are provided on both sides in front of the tilling rotor so as to protrude forward from the tilling rotor cover, so that inconvenience that mud or mud flows out to the outside of the tilling work section side even at high speed work with a scraper. It does not occur, and there is no problem that the penetration performance deteriorates due to the outflow of impurities.

  In addition, the front edge of the side plate that holds the left and right of the tilling rotor is bent to the left and right outwards, and the bent surface is used as the side cover mounting surface, so the strength of the side plate can be improved and the use of thinner plates Became possible. This also has a configuration in which the attachment portion on the side cover side is similarly bent, so that a thinner material can be used, and the manufacturing cost can be reduced.

  In addition, a stand attachment holder is provided on the outer surface of the side cover, so the stand is located at the left and rightmost ends of the crushing and crushing work machine that is long on the left and right, and the stability during storage and movement is good. By fixing the tiller cover side plate and the side cover with fastening bolts at the front part of the holder, the front and back of the stand mounting holder are securely fixed, and the strength of the stand mounting holder and the side cover can be sufficiently secured. By using the mounting portion also, a scraping work machine having a simple structure and a low manufacturing cost can be provided.

  Hereinafter, a configuration example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the working of the scraping work machine according to the present invention, FIG. 2 is a side view of the stand of the scraping working machine according to the present invention, and FIG. 3 is a plan view of the main part of the left side cover. It is shown.

  The ground crushing work machine shown in this example is an apparatus that is mounted on a tractor (not shown) and performs a crushing / crushing work. A three-point link hitch mechanism comprising a pair of left and right lower links 13 of the tractor and a top link 12 provided at the center upper portion is connected to a connecting frame 14 (referred to as a quick coupler or an auto hitch) for stylizing them. 13, a pair of left and right lower pins 21 provided on the front frame of the ground crusher, and a lower link pin 10 provided in the horizontal direction and a top link pin 11 provided in the same horizontal direction on the top link 12 respectively. The upper pin 20 provided at the front end of the top mast 2 provided above the center is engaged with the engaging portion of the connecting frame 1 to be connected.

  The connecting procedure is as follows. First, when the hook above the connecting frame 1 is engaged with the upper pin 20 of the top mast 2 and the three-point link mechanism of the tractor is raised and the connected connecting frame 1 is raised, The lower pin 21 on the side is pulled toward the connecting frame 1 side and engaged with and engaged with the engaging portion at the lower part of the connecting frame 1. The lower engaging portion prevents the hook 14 provided on the connecting frame 1 from being hooked on the lower pin 21 and coming off.

  The input shaft 3 provided so as to protrude in the center horizontal direction in front of the ground crushing work machine is connected to the PTO shaft of a tractor (not shown) by a universal joint (not shown), and the rotational power of the tractor is transferred to the side of the crushing crushing machine. It is for input. Rotational power input to the input shaft 3 is input to a gear box provided by projecting the input shaft 3 at the center of the left and right, and left and right by a transmission shaft in a pipe frame extending horizontally from the gear box to the left and right. The lower tilling rotor 50 is driven by a chain which is transmitted to the chain transmission case 4 provided on the side, and which is built in the chain transmission case 4 and wound vertically.

  The crushing rotor 50 is provided with crushing claws arranged radially on the rotation axis in the left-right direction, and rotates and crushes in soil or mud. The upper part of the crushed rotor 50 is provided with a tiller rotor cover 51 for preventing mud scattering and carrying around the mud. The crushed rotor 50 is provided behind the crushed rotor 50 in the horizontal direction while receiving the crushed mud. A leveling body 6 is provided for leveling the mud while rotating up and down around the rotation axis.

  The leveling body 6 includes a first leveling body 60 provided at the rear end of the tilling rotor cover 51 by a first leveling body rotating shaft 62 in the horizontal direction, and a horizontal position at the rear end of the first leveling body 60. It is comprised by the 2nd leveling body 61 provided by the 2nd leveling body rotation axis | shaft 63 of a direction so that rotation up and down was possible, and the mud ground crushed with the tilling rotor 50 is suppressed and leveled. The posture control of the leveling body 6 is performed by operating the leveling body operating lever 22 connected to the leveling body 6 and provided in the top mast 2 portion, and the leveling body 6 can be switched between the leveling position and the earthing work position.

  On the front side of the left and right ends of the tilling work section 5, a plate-like side cover 7 is provided which protrudes forward from the front end of the tilling rotor cover 51 and is suspended. The side cover 7 is configured such that the lower end of the side cover 7 is located at the lower side or slightly below the mud surface A during the work, and the muddy water and mud that have been crushed by the tillage work unit 5 are carried forward and the soil is crushed. It is intended to prevent outflow from the left and right sides of the machine.

  When the working speed is increased, the amount of mud and mud carried forward increases in proportion to this, and the mud that protrudes to the side impairs the leveling of the mud and the mud and mud. Inconvenience that the burial performance of foreign substances is impaired occurs. By providing the side cover 7, it is possible to prevent outflow of mud and muddy water even at high speed work, and it is possible to prevent the leveling performance and the deterioration of the performance of burying foreign substances.

  When the ground crusher is removed from the tractor, the attitude of the implement does not become unstable, and the connecting frame 1 (called a quick coupler or auto hitch) that standardizes the top link 12 and the left and right lower links 13 When using the work equipment connection device that connects the tractor and the crushing clay work machine using the A stand is needed.

  For this reason, a stand mounting holder 70 having a U-shaped cross section is provided on the outer surface of the side cover 7, and the stand 8 is inserted into the U-shaped holding portion, and the mounting holes provided on both sides are overlapped to form a stand fixing pin. The stand 8 can be attached by inserting 701. The stand 8 is provided with caster wheels 80. The crushing and crushing machine can be easily moved by itself from the tractor, and can be used for movement during storage. Since the stand attachment holder 70 is provided on the outer surface of the side cover 7, the stand 8 is located at the left and rightmost ends of the ground crusher, and the stability in the left and right direction is the best position. Stability is improved.

  As shown in FIG. 3, the side cover 7 is attached by bending the front end edge of the side plate 40 that holds the left and right of the tilling rotor 50 outwardly from the left and right sides, and setting the bent surface as a side cover attaching surface 41. Similarly, the rear end edge of the side cover 7 is also bent leftward and rightward, and the bent surface is brought into contact with the side cover mounting surface 41 and fixed by bolts and nuts. Further, the tilling rotor cover side plate 510 and the side cover 7 are fixed by fastening bolts 71 at the front portion of the stand mounting holder 70.

  By bending the front edge of the side plate 40 and the rear edge of the side cover 7 to the left and right outwards, the strength of the mounting portion is increased, and the front portion of the stand mounting holder 70 is fixed by the fastening bolts 71. 70 parts of attachment holders are supported in the front and rear, the attachment of the stand 8 is stable, and sufficient strength can be secured even with a thin plate. Furthermore, by using both the side cover 7 and the stand attachment portion, a simple structure and a low manufacturing cost can be obtained. In FIG. 3, only the left side is shown, but the right side has the same side plate and side cover symmetrically, and the only difference is that the chain transmission case 4 is not provided.

Side view at the time of work of the scraping work machine which implemented the present invention The side view which mounted | wore the stand of the scraping work machine which implemented this invention Plan view of the main part of the left side cover

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connection frame 10 Lower link pin 11 Top link pin 12 Top link 13 Lower link 14 Hook 2 Top mast 20 Upper pin 21 Lower pin 22 Leveling body operation lever 3 Input shaft 4 Chain transmission case 40 Side plate 41 Side cover attachment surface 5 Tillage work Unit 50 Tilling rotor 51 Tilling rotor cover 510 Tilling rotor cover side plate 6 Leveling body 60 First leveling body 61 Second leveling body 62 First leveling body rotating shaft 63 Second leveling body rotating shaft 7 Side cover 70 Stand mounting holder 701 Stand fixing pin 71 Fastening bolt 8 Stand 80 Caster wheel A Mud surface

Claims (1)

A tilling rotor mounted on the rear of the tractor and configured to allow rotary tilling is provided in the width direction of the tractor, and a tilling work section provided with a tilling rotor cover on the top, and a leveling body can be rotated up and down at the rear of the tilling work section. In the crushing crusher working machine installed in
A pair of side covers are provided on both sides of the front of the tilling rotor so as to protrude forward from the tilling rotor cover.
The front edge of the side plate that holds the left and right of the tilling rotor is bent to the left and right and protrudes, and the bent surface is used as a side cover mounting surface, and a stand mounting holder is provided on the side cover outer surface. A plowing and crushing soil working machine characterized in that a tilling rotor cover side plate and a side cover are fixed by fastening bolts at a front portion of the mounting holder.

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