JP2009298501A - Raw material soil supply device and self-propelled soil reforming machine - Google Patents

Raw material soil supply device and self-propelled soil reforming machine Download PDF

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JP2009298501A
JP2009298501A JP2008152370A JP2008152370A JP2009298501A JP 2009298501 A JP2009298501 A JP 2009298501A JP 2008152370 A JP2008152370 A JP 2008152370A JP 2008152370 A JP2008152370 A JP 2008152370A JP 2009298501 A JP2009298501 A JP 2009298501A
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soil
raw material
material soil
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plate
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JP5161662B2 (en
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Yasukuni Suemitsu
靖邦 末光
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Komatsu Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a raw material soil supply device capable of stably supplying raw material soil to a device on a downstream side even if the raw material soil is viscous soil, and to provide a self-propelled soil reforming machine provided with the supply device. <P>SOLUTION: The raw material soil supply device 4 is provided with a hopper 13 into which raw material soil is fed, a raw material soil conveying belt conveyor 14 for conveying the raw material soil fed into the hopper 13, and a scraping rotor 15 for scraping the raw material soil conveyed by the raw material soil conveying belt conveyor 14. The raw material soil supply device is provided with an oscillating plate 16 oscillating between a raw material soil receiving position for receiving the raw material soil advancing toward the scraping rotor 15 and a raw material soil push-back position for rotating the raw material soil at a prescribed angle in a pushing back direction from the raw material soil receiving position. The oscillating plate 16 is oscillated and driven by a cam mechanism 49 for converting the rotating motion of the scraping rotor 15 into the oscillating motion of the oscillating plate 16. The self-propelled soil reforming machine 1 provided with the raw material soil supply device 4 can be made to stably produce reformed soil. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、例えば土質改良剤との混合が行われる混合機に向けて原料土を供給する原料土供給装置およびそれを備える自走式土質改良機に関するものである。   The present invention relates to a raw soil supply device for supplying raw soil toward a mixer in which mixing with a soil improver, for example, and a self-propelled soil improver including the same.

従来、建設工事等に伴い発生する建設発生土を原料土として、この原料土に所定割合の土質改良剤を添加して混合し、支持力の強い土質に改良することが行われている。
原料土に所定割合の土質改良剤を効率的に添加するために、一定量の原料土を混合機に向けて供給すると同時に、この原料土の供給経路途中でその原料土に対し所定割合の土質改良剤を連続的に添加する方法がとられている。
2. Description of the Related Art Conventionally, a construction generated soil generated by construction work or the like is used as a raw soil, and a predetermined proportion of a soil condition improver is added to and mixed with the raw soil to improve the soil to have a strong supporting force.
In order to efficiently add a certain proportion of soil conditioner to the raw soil, a certain amount of raw soil is supplied to the mixer, and at the same time, a certain proportion of the soil is supplied to the raw soil in the course of the raw soil supply route. A method of continuously adding the improving agent is taken.

一定量の原料土を混合機へと連続的に供給する原料土供給装置としては、原料土が投入されるホッパを備え、このホッパの下方に原料土を搬送する原料土搬送ベルトコンベヤを設置し、この原料土搬送ベルトコンベヤによって搬送される原料土を掻き出す掻き出しロータをそのホッパ内に配置するようにしたものがある(特許文献1参照)。   The material soil supply device that continuously supplies a certain amount of material soil to the mixer is equipped with a hopper into which the material soil is charged, and a material soil conveyor belt conveyor that conveys the material soil is installed below this hopper. There is one in which a scraping rotor that scrapes out the raw soil conveyed by the raw soil conveyor belt conveyor is disposed in the hopper (see Patent Document 1).

特開2004−59187号公報JP 2004-59187 A

この種の従来の原料土供給装置において、掻き出しロータは、円筒状部材の外周面に所要の突起部材が設けられてなるものであり、ホッパ内の原料土を効率良くホッパ外へと掻き出すために、突起部材の形状や配置などに工夫が成されている。   In this type of conventional raw material soil supply device, the scraping rotor is formed by providing a required protruding member on the outer peripheral surface of the cylindrical member, in order to efficiently scrape the raw material soil in the hopper to the outside of the hopper. Further, the shape and arrangement of the protruding members are devised.

ところで、例えば原料土として粘性の高い粘性土がホッパに投入されると、掻き出しロータに向かって進む原料土がその掻き出しロータで堰き止められて滞留し、この掻き出しロータで滞留している原料土が後から搬送されてくる原料土によって圧縮されて強く締め固まってしまう場合がある。このような状態になると、掻き出しロータで原料土を掻き出すことが困難となり、ホッパから掻き出しロータを介して混合機へと切り出される原料土の切り出し量が減少することになる。   By the way, for example, when a highly viscous clay is introduced into the hopper as a raw soil, the raw soil moving toward the scraping rotor is retained by the scraping rotor, and the raw soil staying in the scraping rotor is retained. There is a case where it is compressed by the raw material soil that is transported later and is strongly compacted. If it becomes such a state, it will become difficult to scrape out raw material soil with a scraping rotor, and the cutting amount of raw material soil cut out from a hopper through a scraping rotor to a mixer will decrease.

このため、従来の原料土供給装置は、原料土が粘性土である場合、混合機に向けて原料土を安定的に供給することができなくなるという問題点がある。   For this reason, the conventional raw material soil supply apparatus has a problem that when the raw material soil is a viscous soil, the raw material soil cannot be stably supplied to the mixer.

本発明は、このような問題点を解消するためになされたもので、原料土が粘性土であっても下流の装置に原料土を安定的に供給することができる原料土供給装置およびそれを備える自走式土質改良機を提供することを目的とするものである。   The present invention has been made to solve such problems, and even if the raw material soil is a viscous soil, the raw material soil supply device capable of stably supplying the raw material soil to a downstream device and the same The purpose is to provide a self-propelled soil improvement machine.

前記目的を達成するために、本発明による原料土供給装置は、
原料土が投入されるホッパと、このホッパに投入された原料土を搬送する搬送装置と、この搬送装置によって搬送される原料土を掻き出す掻き出しロータとを備える原料土供給装置において、
前記掻き出しロータに向かって進む原料土を受け止める原料土受止め位置とその原料土受止め位置から原料土を押し返す方向に所定角度回動させた原料土押返し位置との間で揺動自在に揺動板を設けるとともに、この揺動板を揺動駆動する駆動手段を設けることを特徴とするものである(第1発明)。
In order to achieve the above object, the raw soil supply apparatus according to the present invention comprises:
In the raw material soil supply device comprising a hopper into which the raw material soil is charged, a transport device that transports the raw material soil charged into the hopper, and a scraping rotor that scrapes the raw material soil transported by the transport device,
The material soil is swung freely between a material soil receiving position for receiving the material soil moving toward the scraping rotor and a material soil pushing back position rotated by a predetermined angle in the direction of pushing back the material soil from the material soil receiving position. A moving plate is provided, and driving means for driving the swing plate to swing is provided (first invention).

本発明において、前記駆動手段は、前記掻き出しロータの回転運動を前記揺動板の揺動運動に変換するカム機構であるのが好ましい(第2発明)。   In the present invention, it is preferable that the drive means is a cam mechanism that converts the rotational motion of the scraping rotor into the swing motion of the swing plate (second invention).

本発明において、前記揺動板の下部には、下方に向かって進むにつれて開口幅が広がるような台形状の切り欠き部が設けられるのが好ましい(第3発明)。   In the present invention, it is preferable that a trapezoidal cutout portion is provided in the lower portion of the swing plate so that the opening width increases as it proceeds downward (third invention).

本発明において、前記揺動板を前記原料土押返し位置から前記原料土受止め位置に回動させる回動力を常時その揺動板に作用させる付勢手段が設けられるのが好ましい(第4発明)。   In the present invention, it is preferable that an urging means is provided for constantly applying a turning force for rotating the swing plate from the raw material soil pushing position to the raw material soil receiving position (fourth invention). ).

次に、第5発明による自走式土質改良機は、
第1発明〜第4発明のいずれかの発明に係る原料土供給装置を備えることを特徴とするものである。
Next, the self-propelled soil improvement machine according to the fifth invention is
It is provided with the raw material soil supply apparatus which concerns on either invention of 1st invention-4th invention.

本発明の原料土供給装置によれば、原料土受止め位置と原料土押返し位置との間で揺動板が揺動されることによって掻き出しロータに向かう直前の原料土がほぐされるので、掻き出しロータ手前での原料土の滞留や圧密を未然に防ぐことができ、原料土が粘性土であっても下流の装置に原料土を安定的に供給することができる。   According to the raw material soil supply apparatus of the present invention, the material soil immediately before heading to the scraping rotor is loosened by swinging the swinging plate between the raw material soil receiving position and the raw material soil pushing back position. It is possible to prevent stagnation and compaction of the raw material soil before the rotor, and it is possible to stably supply the raw material soil to a downstream device even if the raw material soil is a viscous soil.

また、揺動板を揺動駆動する駆動手段として、掻き出しロータの回転運動を揺動板の揺動運動に変換するカム機構を採用することにより、掻き出しロータの駆動源を利用して揺動板を揺動させることができるので、揺動板を揺動させるために別途駆動源を設ける必要がないという利点がある。   Further, by adopting a cam mechanism that converts the rotational movement of the scraping rotor into the swinging movement of the swinging plate as the driving means for swinging the swinging plate, the swinging plate is utilized by utilizing the drive source of the scraping rotor. Can be swung, so that there is an advantage that it is not necessary to provide a separate drive source to swing the swing plate.

また、揺動板の下部に、下方に向かって進むにつれて開口幅が広がるような台形状の切り欠き部を設けるものとすることにより、原料土をその切り欠き部から掻き出しロータへと流れるようにしてほぐすことができるので、揺動板の駆動負荷を軽減することができるとともに、原料土を掻き出しロータでより効率良く掻き出すことができる。   In addition, a trapezoidal cutout portion is provided in the lower part of the swing plate so that the opening width increases as it goes downward, so that the raw material soil flows from the cutout portion to the scraping rotor. Since it can be loosened, the driving load of the swing plate can be reduced, and the raw soil can be scraped out more efficiently by the scraping rotor.

また、揺動板を原料土押返し位置から原料土受止め位置に回動させる回動力を常時その揺動板に作用させる付勢手段を設けるものとすることにより、揺動板と掻き出しロータとの間に原料土が多少入り込んでも、揺動板を原料土押返し位置から原料土受止め位置に確実に戻すことができ、原料土押返し位置と原料土受止め位置との間における揺動板の揺動運動が滞りなくスムーズに行われるという効果がある。   Further, by providing an urging means for constantly applying a turning force for rotating the swing plate from the raw soil pushing position to the raw soil receiving position, the swing plate, the scraping rotor, The rocking plate can be surely returned from the raw soil pushing back position to the raw soil receiving position even if the raw soil gets in between a little, and the rocking between the raw soil pushing back position and the raw soil receiving position There is an effect that the rocking motion of the plate is smoothly performed without any delay.

また、本発明の原料土供給装置を備える自走式土質改良機によれば、原料土が粘性土であっても改良土を安定的に生産することができる。   Moreover, according to the self-propelled soil improvement machine provided with the raw material soil supply device of the present invention, the improved soil can be stably produced even if the raw material soil is a viscous soil.

次に、本発明による原料土供給装置および自走式土質改良機の具体的な実施の形態について、図面を参照しつつ説明する。   Next, specific embodiments of the raw soil supply apparatus and the self-propelled soil improvement machine according to the present invention will be described with reference to the drawings.

図1には、本発明の一実施形態に係る自走式土質改良機の要部を破断して表わす側面図が示されている。   FIG. 1 is a side view showing a principal part of a self-propelled soil improvement machine according to an embodiment of the present invention.

図1に示される自走式土質改良機1は、建設工事等に伴い発生する建設発生土を原料土として、この原料土に所定割合の土質改良剤を添加・混合して改良土を作業現場で生産する土質改良機である。
この自走式土質改良機1は、履帯式足回り装置が装備された下部走行体2を有している。下部走行体2上には、車体フレーム3が固設されている。車体フレーム3の前部には原料土供給装置4が搭載されている。車体フレーム3の中央部には混合機5が、車体フレーム3の後部には機関室6がそれぞれ設置されている。原料土供給装置4と混合機5との間には、土質改良剤添加装置7が配置されている。混合機5の下方位置から後方に延びるように製品搬送ベルトコンベヤ8が車体フレーム3に組み付けられている。
The self-propelled soil improvement machine 1 shown in FIG. 1 uses construction generated soil generated during construction work as raw soil, and adds and mixes a predetermined proportion of soil improver to this raw soil to work the improved soil. Soil improvement machine produced in
This self-propelled soil improvement machine 1 has a lower traveling body 2 equipped with a crawler-type undercarriage device. A vehicle body frame 3 is fixed on the lower traveling body 2. A raw soil material supply device 4 is mounted on the front portion of the vehicle body frame 3. A mixer 5 is installed at the center of the body frame 3, and an engine room 6 is installed at the rear of the body frame 3. Between the raw soil supply device 4 and the mixer 5, a soil conditioner addition device 7 is disposed. A product conveyor belt conveyor 8 is assembled to the vehicle body frame 3 so as to extend rearward from the lower position of the mixer 5.

原料土供給装置4は、混合機5に向けて原料土を定量供給する。土質改良剤添加装置7は、原料土供給装置4から混合機5に向けて定量供給される原料土に対して所定割合の土質改良剤を添加する。混合機5は、当該混合機5内に入った原料土と土質改良剤とを、ソイルカッタ9およびロータリハンマ10により混合して改良土を生産する。混合機5で生産された改良土は、製品搬送ベルトコンベヤ8により機体後方に向けて搬送され、製品搬送ベルトコンベヤ8の端部に付設のアフタカッタ11で更に細粒化・混合された後に機外に搬出される。   The raw material soil supply device 4 supplies the raw material soil to the mixer 5 in a fixed amount. The soil condition improver addition device 7 adds a predetermined proportion of the soil condition improver to the raw material soil that is quantitatively supplied from the raw material soil supply device 4 toward the mixer 5. The mixer 5 mixes the raw soil contained in the mixer 5 with the soil conditioner by the soil cutter 9 and the rotary hammer 10 to produce improved soil. The improved soil produced by the mixer 5 is conveyed toward the rear of the machine body by the product conveyor belt conveyor 8, further refined and mixed by the aftercutter 11 attached to the end of the product conveyor belt conveyor 8, and then outside the machine. It is carried out to.

次に、原料土供給装置4について、より詳細に説明することとする。   Next, the raw soil supply apparatus 4 will be described in more detail.

原料土供給装置4は、油圧ショベル等の積込機12によって原料土が投入されるホッパ13と、このホッパ13に投入された原料土を混合機5に向けて搬送する搬送装置としての原料土搬送ベルトコンベヤ14と、この原料土搬送ベルトコンベヤ14によって搬送される原料土の切り出し高さを一定としつつ原料土を混合機5側へと掻き出す掻き出しロータ15と、この掻き出しロータ15に向かって進む原料土に立ち向かうようにホッパ13内に配置される揺動板16とを備えている。   The raw material soil supply device 4 includes a hopper 13 into which the raw material soil is charged by a loader 12 such as a hydraulic excavator, and a raw material soil as a conveying device that conveys the raw material material charged into the hopper 13 toward the mixer 5. The conveyor belt 14, the scraping rotor 15 that scrapes the raw soil toward the mixer 5 while keeping the cutting height of the raw soil transported by the raw soil transport belt conveyor 14 constant, and the scraper rotor 15 proceeds. An oscillating plate 16 disposed in the hopper 13 is provided so as to confront the raw material soil.

図2には、図1のA矢視図(a)および(a)のC部を揺動板を一部破断して表わした図(b)が示されている。
図3には、図1のB部拡大図で、揺動板が原料土受止め位置に位置されている状態図が示されている。
図4には、図1のB部拡大図で、揺動板が原料土押返し位置に位置されている状態図が示されている。
FIG. 2 shows a view (a) of FIG. 1 (a) and a view (b) in which a portion C of FIG.
FIG. 3 is an enlarged view of part B of FIG. 1 and shows a state in which the swing plate is positioned at the raw soil receiving position.
FIG. 4 is an enlarged view of a portion B in FIG. 1 and shows a state diagram in which the swinging plate is positioned at the raw material pushing back position.

図2(b)に示されるように、掻き出しロータ15は、円筒状部材20と、この円筒状部材20の両端部における外周面に周方向に所定間隔を存して固着される所要の突起部材21とより構成されている。円筒状部材20の一端部における内周面に形成される図示されない内向きフランジには、軸部材22が組み付けられている。円筒状部材20の他端部における内周面に形成される図示されない内向きフランジには、軸受の機能と油圧モータの機能とを兼備する油圧モータ装置23が組み付けられている。   As shown in FIG. 2B, the scraping rotor 15 includes a cylindrical member 20 and a required protruding member that is fixed to the outer peripheral surfaces of both ends of the cylindrical member 20 at a predetermined interval in the circumferential direction. 21. A shaft member 22 is assembled to an inward flange (not shown) formed on the inner peripheral surface at one end of the cylindrical member 20. A hydraulic motor device 23 having both a function of a bearing and a function of a hydraulic motor is assembled to an inward flange (not shown) formed on the inner peripheral surface of the other end portion of the cylindrical member 20.

図2(a)に示されるように、掻き出しロータ15は、ホッパ13に着脱可能に取り付けられるロータ支持フレーム24に支持されている。ロータ支持フレーム24は、掻き出しロータ15の円筒状部材20を挟み込むよう配置される一対の側板25,26を備え、これら側板25,26の上部同士が中空状のビーム部材27で結合されて構成されている。一方の側板25には、軸部材22を回転自在に支持する軸受28が組み付けられ、他方の側板26には、油圧モータ装置23が組み付けられ、油圧モータ装置23の作動により、掻き出しロータ15が回転駆動されるようになっている。なお、掻き出しロータ15は、原料土の接する部分が、原料土の移動方向と同一の方向に移動するように回転する。   As shown in FIG. 2A, the scraping rotor 15 is supported by a rotor support frame 24 that is detachably attached to the hopper 13. The rotor support frame 24 includes a pair of side plates 25 and 26 arranged so as to sandwich the cylindrical member 20 of the scraping rotor 15, and the upper portions of these side plates 25 and 26 are coupled by a hollow beam member 27. ing. A bearing 28 that rotatably supports the shaft member 22 is assembled to one side plate 25, and a hydraulic motor device 23 is assembled to the other side plate 26, and the scraping rotor 15 is rotated by the operation of the hydraulic motor device 23. It is designed to be driven. The scraping rotor 15 rotates so that the portion in contact with the raw material soil moves in the same direction as the moving direction of the raw material soil.

図3に示されるように、揺動板16は、原料土を受け止める原料土受止め板部30と、この原料土受止め板部30の上方に掻き出しロータ15側に傾きが付されて連設される取付用板部31とを有している。この揺動板16の原料土受止め板部30における掻き出しロータ15と向き合う側の板面には、所要のリブ32やローラ取付座部材33が固着されている。   As shown in FIG. 3, the swing plate 16 includes a raw material soil receiving plate portion 30 that receives the raw material soil, and a scraper is provided above the raw material soil receiving plate portion 30 so as to be inclined to the rotor 15 side. The mounting plate portion 31 is provided. Necessary ribs 32 and roller mounting seat members 33 are fixed to the plate surface of the rocking plate 16 on the side facing the scraping rotor 15 in the raw soil receiving plate portion 30.

また、この揺動板16において、掻き出しロータ15に向かって進む原料土と向き合う側の板面には、原料土受止め板部30から取付用板部31に架け渡されるように側方視ブーメラン形状の縦板51が固着されている。万一、原料土が原料土受止め板部30から取付用板部31へと巻き上げられたとしても、縦板51により、その巻き上げられた原料土をせん断することができる。   Further, in the swing plate 16, a side-view boomerang so as to be bridged from the raw soil receiving plate portion 30 to the mounting plate portion 31 on the plate surface facing the raw soil traveling toward the scraping rotor 15. A vertical plate 51 having a shape is fixed. Even if the raw material soil is wound up from the raw material soil receiving plate portion 30 to the mounting plate portion 31, the rolled up raw material soil can be sheared by the vertical plate 51.

ロータ支持フレーム24のビーム部材27には、揺動板16に向かって延びる第1ブラケット34が固着されている。第1ブラケット34と揺動板16との間には、中間ブラケット35が配されている。中間ブラケット35と第1ブラケット34とはピン36によって連結されている。中間ブラケット35と揺動板16とは、揺動板16の取付用板部31を貫通して中間ブラケット35に螺合するボルト37によって締結されている。   A first bracket 34 extending toward the swing plate 16 is fixed to the beam member 27 of the rotor support frame 24. An intermediate bracket 35 is disposed between the first bracket 34 and the swing plate 16. The intermediate bracket 35 and the first bracket 34 are connected by a pin 36. The intermediate bracket 35 and the swing plate 16 are fastened by a bolt 37 that passes through the mounting plate portion 31 of the swing plate 16 and is screwed into the intermediate bracket 35.

こうして、ピン36を中心として回動自在な中間ブラケット35に揺動板16が取り付けられることにより、揺動板16は、掻き出しロータ15に向かって進む原料土を受け止める図3に示されるような原料土受止め位置と、その原料土受止め位置から原料土を押し返す方向に所定角度回動させた図4に示されるような原料土押返し位置との間で揺動自在となっている。   In this way, the swing plate 16 is attached to the intermediate bracket 35 that is rotatable about the pin 36, so that the swing plate 16 receives the raw material soil that advances toward the scraping rotor 15, as shown in FIG. It is freely swingable between a soil receiving position and a material soil pushing back position as shown in FIG. 4 rotated by a predetermined angle in the direction of pushing back the material soil from the material soil receiving position.

図3に示されるように、ロータ支持フレーム24のビーム部材27には、上方に向かって延びる第2ブラケット38が固着されている。第2ブラケット38と中間ブラケット35との間には、戻しばね装置39(本発明の「付勢手段」に相当する。)が設けられている。この戻しばね装置39は、第2ブラケット38にピン40によって連結されるばねホルダ41と、中間ブラケット35にピン42によって連結されるばねシート43と、これらばねホルダ41とばねシート43との間に組み込まれる圧縮コイルばね44とを備えて構成されている。この戻しばね装置39により、揺動板16を原料土押返し位置(図4参照)から原料土受止め位置(図3参照)に回動させる回動力を常時その揺動板16に作用させることができる。   As shown in FIG. 3, a second bracket 38 that extends upward is fixed to the beam member 27 of the rotor support frame 24. Between the second bracket 38 and the intermediate bracket 35, a return spring device 39 (corresponding to "biasing means" of the present invention) is provided. The return spring device 39 includes a spring holder 41 connected to the second bracket 38 by a pin 40, a spring seat 43 connected to the intermediate bracket 35 by a pin 42, and between the spring holder 41 and the spring seat 43. And a compression coil spring 44 to be incorporated. By this return spring device 39, the oscillating plate 16 is constantly acted on the oscillating plate 16 to rotate the oscillating plate 16 from the material soil pushing back position (see FIG. 4) to the material soil receiving position (see FIG. 3). Can do.

ばねホルダ41とばねシート43とは、ばねホルダ41のフランジ部を貫通してばねシート43のフランジ部に螺合し、圧縮コイルばね44を挟むようにして配置される一対のセット位置調整ボルト45(片側のみ図示)によって連結されている。このセット位置調整ボルト45の締め込み量の調整により、ばねホルダ41に対するばねシート43のセット位置を調整することができる。   The spring holder 41 and the spring seat 43 pass through the flange portion of the spring holder 41, screw into the flange portion of the spring seat 43, and a pair of set position adjusting bolts 45 (one side) disposed so as to sandwich the compression coil spring 44. Only connected). By adjusting the tightening amount of the set position adjusting bolt 45, the set position of the spring seat 43 with respect to the spring holder 41 can be adjusted.

図2(b)に示されるように、掻き出しロータ15の円筒状部材20における軸線方向中間部の外周面には、その全周に亘って2列の板カム46が固着されている。各板カム46は、図3に示されるように、円筒状部材20の周方向に山部46aと谷部46bとが所定ピッチで繰り返し配置される輪郭を有している。これら2列の板カム46に接触して転動するローラ47がローラサポート部材48を介して揺動板16のローラ取付座部材33に取り付けられている。   As shown in FIG. 2B, two rows of plate cams 46 are fixed to the outer peripheral surface of the intermediate portion in the axial direction of the cylindrical member 20 of the scraping rotor 15 over the entire periphery. As shown in FIG. 3, each plate cam 46 has a contour in which crests 46 a and troughs 46 b are repeatedly arranged at a predetermined pitch in the circumferential direction of the cylindrical member 20. A roller 47 that rolls in contact with the two rows of plate cams 46 is attached to the roller mounting seat member 33 of the swing plate 16 via a roller support member 48.

図3に示されるように、ローラ47が板カム46の谷部46bの底面と接触しているときには、揺動板16が原料土受止め位置に位置される。
図4に示されるように、ローラ47が板カム46の山部46aの頂面と接触しているときには、揺動板16が原料土押返し位置に位置される。
したがって、油圧モータ装置23(図2参照)の作動による掻き取りロータ15の回転(回転方向R)に伴い板カム46が回転されると、板カム46にローラ47を介して接触される揺動板16が図3に示される原料土受止め位置と図4に示される原料土押返し位置との間で揺動されることになる。
板カム46とローラ47とよりなるカム機構49は、掻き出しロータ15の回転運動を揺動板16の揺動運動に変換する役目をする。
As shown in FIG. 3, when the roller 47 is in contact with the bottom surface of the valley 46 b of the plate cam 46, the swing plate 16 is positioned at the raw soil receiving position.
As shown in FIG. 4, when the roller 47 is in contact with the top surface of the peak portion 46 a of the plate cam 46, the rocking plate 16 is positioned at the raw material soil return position.
Therefore, when the plate cam 46 is rotated in accordance with the rotation (rotation direction R) of the scraping rotor 15 by the operation of the hydraulic motor device 23 (see FIG. 2), the rocking is brought into contact with the plate cam 46 via the roller 47. The plate 16 is swung between the raw material soil receiving position shown in FIG. 3 and the raw material soil return position shown in FIG.
A cam mechanism 49 including a plate cam 46 and a roller 47 serves to convert the rotary motion of the scraping rotor 15 into the swing motion of the swing plate 16.

以上に述べたように構成される原料土供給装置4において、図5(a)〜(b)に示されるように、掻き出しロータ15に向かって進む原料土Gが原料土受止め位置に位置される揺動板16によって受け止められた後に、揺動板16がその原料土受止め位置から掻き出しロータ15の回転に伴い原料土押返し位置まで回動されると、揺動板16の下端の軌跡線に沿って原料土Gがせん断され、このせん断された部分の原料土Gが揺動板16によって押し返されることで掻き出しロータ15に向かう直前の原料土Gがほぐされる。この揺動板16の揺動運動により、掻き出しロータ15で掻き出される直前の原料土Gの高さが、図5(c)に示されるように、掻き出しロータ15にてスムーズに掻き出すことのできる規定高さHとされる。   In the raw soil supply apparatus 4 configured as described above, as shown in FIGS. 5 (a) to 5 (b), the raw soil G traveling toward the scraping rotor 15 is positioned at the raw soil receiving position. After the rocking plate 16 is received by the rocking plate 16, when the rocking plate 16 is rotated from the raw material soil receiving position to the raw material soil pushing-back position with the rotation of the rotor 15, the locus of the lower end of the rocking plate 16 is detected. The raw soil G is sheared along the line, and the sheared portion of the raw soil G is pushed back by the swing plate 16 so that the raw soil G just before the scraping rotor 15 is loosened. By the swing motion of the swing plate 16, the height of the raw soil G immediately before being scraped by the scraping rotor 15 can be smoothly scraped by the scraping rotor 15 as shown in FIG. The specified height is H.

本実施形態の原料土供給装置4によれば、掻き出しロータ15の手前の原料土が揺動板16によってほぐされて掻き出しロータ15の手前での原料土の滞留や圧密を未然に防ぐことができるとともに、掻き出しロータ15の手前の原料土高さが揺動板16によって規定高さHとされて掻き出しロータ15による原料土の掻き出し動作をスムーズに行うことができるので、原料土が粘性土であっても混合機5に向けて原料土を安定的に供給することができる。また、本実施形態の原料土供給装置4を備える自走式土質改良機1は、原料土が粘性土であっても改良土を安定的に生産することができる。   According to the raw material soil supply device 4 of the present embodiment, the raw material soil before the scraping rotor 15 is loosened by the rocking plate 16, and the stagnation and compaction of the raw material soil before the scraping rotor 15 can be prevented in advance. At the same time, the height of the raw soil before the scraping rotor 15 is set to the specified height H by the swing plate 16, and the scraping of the raw soil by the scraping rotor 15 can be performed smoothly. Even so, the raw soil can be stably supplied toward the mixer 5. Moreover, the self-propelled soil improvement machine 1 provided with the raw material soil supply device 4 of the present embodiment can stably produce the improved soil even if the raw material soil is a viscous soil.

さらに、本実施形態の原料土供給装置4は、以下のような作用効果を奏する。
(1)揺動板16を揺動駆動する駆動手段として、掻き出しロータ15の回転運動を揺動板16の揺動運動に変換するカム機構49が用いられているので、掻き出しロータ15の駆動源である油圧モータ装置23を利用して揺動板16を揺動させることができ、揺動板16を揺動させるために別途駆動源を設ける必要がない。
(2)揺動板16を原料土押返し位置(図4参照)から原料土受止め位置(図3参照)に回動させる回動力を常時その揺動板16に作用させる戻しばね装置39が設けられているので、揺動板16と掻き出しロータ15との間に原料土が多少入り込んでも、揺動板16を原料土押返し位置から原料土受止め位置に確実に戻すことができ、原料土押返し位置と原料土受止め位置との間における揺動板16の揺動運動が滞りなくスムーズに行われる。また、板カム46にローラ47が常に押し付けられた状態でカム機構49の作動が成されるので、掻き出しロータ15から揺動板16に動力を確実に伝達することができる。
(3)ばねホルダ41とばねシート43とがセット位置調整ボルト45によって連結されているので、ボルト37の取り外しによって中間ブラケット35から揺動板16を取り外したとしても、セット位置調整ボルト45の締め込み量の調整により、中間ブラケット35を所定の状態位置に保持することができる。したがって、揺動板16が必要でない作業条件、例えば原料土が粘性の低い土砂等であるような場合に、揺動板16を中間ブラケット35から取り外してかかる作業条件に適応した装置形態に容易にすることができる。
(4)掻き出しロータ15や揺動板16等の主要部品、油圧モータ装置23や戻しばね装置39等の周辺機器が、ホッパ13に着脱可能に取り付けられるロータ支持フレーム24に組み付けられているので、それら主要部品や周辺機器を一つのユニットとして着脱することができ、メンテナンスや修理等が行い易い。
Furthermore, the raw material soil supply device 4 of the present embodiment has the following operational effects.
(1) Since the cam mechanism 49 that converts the rotational movement of the scraping rotor 15 into the swinging movement of the swinging plate 16 is used as the driving means for driving the swinging plate 16 to swing, the drive source of the scraping rotor 15 The rocking plate 16 can be swung using the hydraulic motor device 23, and there is no need to provide a separate drive source for rocking the rocking plate 16.
(2) There is a return spring device 39 that constantly acts on the swinging plate 16 to rotate the swinging plate 16 from the raw soil soil pushing position (see FIG. 4) to the raw soil soil receiving position (see FIG. 3). Since it is provided, even if the raw soil enters between the swing plate 16 and the scraping rotor 15, the swing plate 16 can be reliably returned from the raw soil pushing back position to the raw soil receiving position. The swinging motion of the swinging plate 16 between the soil pushing back position and the raw soil receiving position is smoothly performed without any delay. Further, since the cam mechanism 49 is operated in a state where the roller 47 is always pressed against the plate cam 46, power can be reliably transmitted from the scraping rotor 15 to the swing plate 16.
(3) Since the spring holder 41 and the spring seat 43 are connected by the set position adjusting bolt 45, even if the swing plate 16 is removed from the intermediate bracket 35 by removing the bolt 37, the set position adjusting bolt 45 is tightened. By adjusting the amount of insertion, the intermediate bracket 35 can be held at a predetermined state position. Therefore, when the working condition is not necessary for the swing plate 16, for example, when the raw material soil is low-viscosity soil or the like, the swing plate 16 is removed from the intermediate bracket 35 to easily form an apparatus configuration adapted to the work condition. can do.
(4) Since main components such as the scraping rotor 15 and the swing plate 16 and peripheral devices such as the hydraulic motor device 23 and the return spring device 39 are assembled to the rotor support frame 24 that is detachably attached to the hopper 13. These main parts and peripheral devices can be attached and detached as a single unit, and maintenance and repair are easy to perform.

以上、本発明の原料土供給装置および自走式土質改良機について、一実施形態に基づいて説明したが、本発明は上記実施形態に記載した構成に限定されるものではなく、その趣旨を逸脱しない範囲において適宜その構成を変更することができるものである。   As mentioned above, although the raw material soil supply apparatus and the self-propelled soil improvement machine of the present invention have been described based on one embodiment, the present invention is not limited to the configuration described in the above embodiment, and departs from the gist thereof. The configuration can be appropriately changed within a range not to be performed.

例えば、掻き出しロータ15の駆動源である油圧モータ装置23とは別の駆動源にて揺動板16を揺動駆動するようにしてもよい。
すなわち、図6に示されるように、本実施形態では設けられていたカム機構49を廃止し、戻しばね装置39に代えて油圧シリンダ50を中間ブラケット35と第2ブラケット38との間に組み込み、油圧シリンダ50の伸縮作動により、揺動板16を揺動駆動することができる。
For example, the swing plate 16 may be driven to swing by a drive source other than the hydraulic motor device 23 that is the drive source of the scraping rotor 15.
That is, as shown in FIG. 6, the cam mechanism 49 provided in this embodiment is abolished, and the hydraulic cylinder 50 is incorporated between the intermediate bracket 35 and the second bracket 38 instead of the return spring device 39. The swing plate 16 can be driven to swing by the expansion / contraction operation of the hydraulic cylinder 50.

また、本実施形態の揺動板16に代えて、図7に示されるような揺動板16Aを用いてもよい。この揺動板16Aは、その下部に、下方に向かって進むにつれて開口幅が広がるような台形状の切り欠き部52を有している。それ以外の構成については本実施形態の揺動板16と同様であり、図に同一符号を付すに留めてその詳細な説明を省略する。   Further, instead of the swing plate 16 of the present embodiment, a swing plate 16A as shown in FIG. 7 may be used. The swing plate 16A has a trapezoidal notch 52 at its lower portion so that the opening width increases as it proceeds downward. The rest of the configuration is the same as that of the swing plate 16 of the present embodiment, and the same reference numerals are given to the drawings, and detailed description thereof is omitted.

図7に示される揺動板16Aにおいて、切り欠き部52は、原料土搬送ベルトコンベヤ14による原料土の搬送方向(図7において読み手側から紙面を鉛直に貫く方向)と直交する方向で水平に延びる切り欠き部上縁52aと、切り欠き部上縁52aの図において左側に連続する切り欠き部左側縁52bと、切り欠き部上縁52aの図において右側に連続する切り欠き部右側縁52cとより構成されている。
ここで、切り欠き部52を通過後の原料土が掻き出しロータ15によって確実に掻き出されるようにするため、切り欠き部上縁52aの高さ位置は、掻き出しロータ15の回転中心の高さ位置以下とされている。また、切り欠き部上縁52aと切り欠き部左側縁52bとの交わりの角部52dは鈍角を成し、切り欠き部上縁52aと切り欠き部右側縁52cとの交わりの角部52eも同様に鈍角を成している。
In the swing plate 16A shown in FIG. 7, the notch 52 is horizontally arranged in a direction orthogonal to the direction in which the material soil is conveyed by the material soil conveyance belt conveyor 14 (the direction perpendicularly penetrating the paper surface from the reader side in FIG. 7). A notch part upper edge 52a extending, a notch part left side edge 52b continuous to the left in the figure of the notch part upper edge 52a, and a notch part right edge 52c continuous to the right side in the figure of the notch part upper edge 52a It is made up of.
Here, in order to ensure that the raw soil after passing through the notch 52 is scraped out by the scraping rotor 15, the height position of the notch upper edge 52 a is the height position of the rotation center of the scraping rotor 15. It is as follows. The corner 52d of the intersection between the upper edge 52a of the notch and the left edge 52b of the notch forms an obtuse angle, and the corner 52e of the intersection of the upper edge 52a of the notch and the right edge 52c of the notch is the same. Is obtuse.

そして、揺動板16Aが揺動駆動されると、原料土受止め板部30で受け止められた原料土の一部が切り欠き部52に巻き込まれるように角部52d,52eによってせん断され、このせん断作用により、原料土が切り欠き部52を通って掻き出しロータ15へと向かう流れが形成される。
この揺動板16Aを備えた原料土供給装置4によれば、原料土を切り欠き部52から掻き出しロータ15へと流れるようにしてほぐすことができるので、油圧モータ装置23の負荷を軽減することができるとともに、原料土を掻き出しロータ15でより効率良く掻き出すことができる。
なお、切り欠き部52の形状は、台形の他に、半楕円形や半円形であってもよい。
When the swinging plate 16A is driven to swing, a part of the raw soil received by the raw soil receiving plate 30 is sheared by the corners 52d and 52e so as to be caught in the notch 52. Due to the shearing action, the raw soil passes through the notch 52 and the flow toward the rotor 15 is formed.
According to the raw material supply device 4 provided with the swing plate 16A, the raw material soil can be loosened so as to flow from the notch 52 to the scraping rotor 15, so that the load on the hydraulic motor device 23 can be reduced. And the raw soil can be scraped out more efficiently by the rotor 15.
Note that the shape of the notch 52 may be a semi-elliptical shape or a semi-circular shape in addition to the trapezoidal shape.

本発明の一実施形態に係る自走式土質改良機の要部を破断して表わす側面図The side view which fractures | ruptures and represents the principal part of the self-propelled soil improvement machine which concerns on one Embodiment of this invention. 図1のA矢視図(a)および(a)のC部を揺動板を一部破断して表わした図(b)FIG. 1B is a view in which the rocking plate is partially broken and is shown in a part C of FIG. 1A (a) and (a). 図1のB部拡大図で、揺動板が原料土受止め位置に位置されている状態図FIG. 2 is an enlarged view of part B in FIG. 1, in which the swing plate is positioned at the raw soil receiving position. 図1のB部拡大図で、揺動板が原料土押返し位置に位置されている状態図FIG. 2 is an enlarged view of a portion B in FIG. 1, in which the swing plate is located at the raw material pushing back position. 揺動板による原料土のほぐし動作の説明図Explanatory drawing of loosening operation of raw soil by swinging plate 揺動板の駆動手段の他の態様例を説明する図The figure explaining the other example of a drive means of a rocking | fluctuation plate 揺動板の他の態様例を説明する図The figure explaining the other example of an oscillation board

符号の説明Explanation of symbols

1 自走式土質改良機
4 原料土供給装置
13 ホッパ
14 原料土搬送ベルトコンベヤ
15 掻き出しロータ
16,16A 揺動板
39 戻しばね装置
41 ばねホルダ
43 ばねシート
44 圧縮コイルばね
45 セット位置調整ボルト
46 板カム
47 ローラ
49 カム機構
50 油圧シリンダ
52 切り欠き部
DESCRIPTION OF SYMBOLS 1 Self-propelled soil improvement machine 4 Raw material soil supply apparatus 13 Hopper 14 Raw material soil conveyance belt conveyor 15 Scraping rotor 16, 16A Oscillation plate 39 Return spring device 41 Spring holder 43 Spring seat 44 Compression coil spring 45 Set position adjustment bolt 46 Plate Cam 47 Roller 49 Cam mechanism 50 Hydraulic cylinder 52 Notch

Claims (5)

原料土が投入されるホッパと、このホッパに投入された原料土を搬送する搬送装置と、この搬送装置によって搬送される原料土を掻き出す掻き出しロータとを備える原料土供給装置において、
前記掻き出しロータに向かって進む原料土を受け止める原料土受止め位置とその原料土受止め位置から原料土を押し返す方向に所定角度回動させた原料土押返し位置との間で揺動自在に揺動板を設けるとともに、この揺動板を揺動駆動する駆動手段を設けることを特徴とする原料土供給装置。
In the raw material soil supply device comprising a hopper into which the raw material soil is charged, a transport device that transports the raw material soil charged into the hopper, and a scraping rotor that scrapes the raw material soil transported by the transport device,
The material soil is swung freely between a material soil receiving position for receiving the material soil moving toward the scraping rotor and a material soil pushing back position rotated by a predetermined angle in the direction of pushing back the material soil from the material soil receiving position. A raw soil supply apparatus, characterized in that a moving plate is provided and a driving means for swinging the swing plate is provided.
前記駆動手段は、前記掻き出しロータの回転運動を前記揺動板の揺動運動に変換するカム機構である請求項1に記載の原料土供給装置。   The raw soil supply apparatus according to claim 1, wherein the driving means is a cam mechanism that converts a rotational motion of the scraping rotor into a swing motion of the swing plate. 前記揺動板の下部には、下方に向かって進むにつれて開口幅が広がるような台形状の切り欠き部が設けられる請求項1または2に記載の原料土供給装置。   The raw soil supply apparatus according to claim 1, wherein a trapezoidal cutout portion is provided at a lower portion of the swing plate so that an opening width increases as it proceeds downward. 前記揺動板を前記原料土押返し位置から前記原料土受止め位置に回動させる回動力を常時その揺動板に作用させる付勢手段が設けられる請求項1〜3のいずれかに記載の原料土供給装置。   4. The urging means is provided for urging the oscillating plate to always act on the oscillating plate for turning the oscillating plate from the raw soil soil pushing position to the raw soil soil receiving position. Raw material supply device. 請求項1〜4のいずれかに記載の原料土供給装置を備えることを特徴とする自走式土質改良機。   A self-propelled soil improvement machine comprising the raw soil supply device according to any one of claims 1 to 4.
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Publication number Priority date Publication date Assignee Title
CN112828548A (en) * 2020-12-30 2021-05-25 东莞市海洛实业有限公司 Lifting device for assembling press plate of punch press
CN113071911A (en) * 2021-03-24 2021-07-06 大丰市明月轴瓦有限公司 Bearing bush feeding device
CN115784567A (en) * 2022-10-31 2023-03-14 湖南亿德和玻璃产业发展有限公司 Auxiliary stirrer for melting float glass in melting furnace

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Publication number Priority date Publication date Assignee Title
CN112828548A (en) * 2020-12-30 2021-05-25 东莞市海洛实业有限公司 Lifting device for assembling press plate of punch press
CN113071911A (en) * 2021-03-24 2021-07-06 大丰市明月轴瓦有限公司 Bearing bush feeding device
CN115784567A (en) * 2022-10-31 2023-03-14 湖南亿德和玻璃产业发展有限公司 Auxiliary stirrer for melting float glass in melting furnace

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