JP3167942B2 - Mixing machine - Google Patents
Mixing machineInfo
- Publication number
- JP3167942B2 JP3167942B2 JP23894896A JP23894896A JP3167942B2 JP 3167942 B2 JP3167942 B2 JP 3167942B2 JP 23894896 A JP23894896 A JP 23894896A JP 23894896 A JP23894896 A JP 23894896A JP 3167942 B2 JP3167942 B2 JP 3167942B2
- Authority
- JP
- Japan
- Prior art keywords
- construction
- soil
- stirring
- stirring rod
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建設残土に建設残
土改良剤を混合するための混合機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixer for mixing a construction waste soil improving agent with a construction waste soil.
【０００２】[0002]
【発明が解決しようとする課題】ビル建設等の土木建設
工事に伴って発生する建設残土は、公共事業を始めとす
る内需拡大策等により、著しく増加している。この建設
残土の大部分は、海浜または山間へ埋立て処分されてい
るが、処分地の不足から不法投棄されるケースもあり、
大きな社会問題になっている。また、一方では、埋め戻
しに適した良質な土砂の不足から、山を削っての山砂の
採取が盛んになっており、これが自然破壊の原因である
として問題になっている。The amount of surplus construction soil generated in connection with civil engineering works such as building construction has increased remarkably due to measures to expand domestic demand, including public works. Most of this construction surplus soil is landfilled on the beach or in the mountains, but in some cases it is illegally dumped due to lack of landfills.
It is a big social problem. On the other hand, the lack of good-quality earth and sand suitable for backfilling has led to an increase in the collection of mountain sand by shaving mountains, which has been a problem because it causes natural destruction.
【０００３】こうした背景の中で、建設残土を建設残土
改良剤と混合することに伴い、埋め戻しに適した資源と
して再利用することが考えられている。図９は、両者を
混合する混合機の従来構成を示すものである。ここで、
混合槽１内には複数の回転軸２が収容されており（１本
のみ図示する）、混合槽１内に建設残土および建設残土
改良剤を投入すると、各回転軸２と一体的に撹拌羽根３
が回転することに伴い、建設残土が撹拌され、矢印Ａ方
向へ輸送される。これにより、建設残土が建設残土改良
剤と混合され、混合槽１の取出口を通して押出される。[0003] In such a background, it has been considered to recycle the construction waste soil as a resource suitable for backfilling by mixing it with the construction waste soil improving agent. FIG. 9 shows a conventional configuration of a mixer for mixing both. here,
A plurality of rotary shafts 2 are accommodated in the mixing tank 1 (only one is shown). When the construction residual soil and the construction residual soil improving agent are charged into the mixing tank 1, the stirring blades are integrated with each of the rotary shafts 2. 3
With the rotation of, the remaining construction soil is stirred and transported in the direction of arrow A. As a result, the construction waste soil is mixed with the construction waste soil improver and extruded through the outlet of the mixing tank 1.
【０００４】しかしながら、上記従来構成では、各回転
軸２に複数の撹拌棒３ａを溶接し、この撹拌棒３ａに撹
拌羽根３を溶接していた。このため、建設残土の輸送速
度を調整するにあたって、撹拌羽根３の角度を調整でき
ない不便さがあった。また、建設残土が撹拌羽根３相互
間に詰まって、撹拌棒３ａや撹拌羽根３が破損した場合
に、装置の修理を行い難い不便さもあった。However, in the above-described conventional configuration, a plurality of stirring rods 3a are welded to each rotating shaft 2, and the stirring blades 3 are welded to the stirring rods 3a. For this reason, when adjusting the transport speed of the construction surplus soil, there was an inconvenience that the angle of the stirring blade 3 could not be adjusted. In addition, when the remaining soil is clogged between the stirring blades 3 and the stirring bar 3a or the stirring blades 3 is damaged, it is inconvenient to repair the device.
【０００５】本発明は上記事情に鑑みてなされたもので
あり、その目的は、建設残土の輸送速度を簡単に調整で
き、しかも、修理を簡単に行うことができる混合機を提
供することである。[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mixer capable of easily adjusting the transport speed of construction surplus soil and performing repair easily. .
【０００６】[0006]
【課題を解決するための手段】請求項１記載の混合機
は、建設残土および建設残土改良剤が投入される混合槽
と、この混合槽内に回転可能に収容された回転軸と、こ
の回転軸に固着され、内周面にねじ部を有する複数の筒
部材と、ねじ部および本体部を有し、該ねじ部が前記各
筒部材のねじ部に螺合された撹拌棒と、これら各撹拌棒
に取付けられ、前記回転軸の回転に伴い建設残土を撹拌
して建設残土改良剤と混合する撹拌羽根と、前記各撹拌
棒のねじ部に螺合され、前記筒部材に締結されたナット
部材とを備えたところに特徴を有する。According to a first aspect of the present invention, there is provided a mixer for mixing a construction soil and a construction soil improving agent, a rotating shaft rotatably housed in the mixing tank, and a rotating shaft. A plurality of cylindrical members fixed to the shaft and having a threaded portion on the inner peripheral surface, a stirring rod having a threaded portion and a main body portion, and the threaded portion screwed to the threaded portion of each of the tubular members, A stirring blade attached to the stirring rod, which stirs the remaining construction soil with the rotation of the rotating shaft and mixes with the remaining construction soil improving agent, and a nut screwed to a screw portion of each of the stirring rods and fastened to the cylindrical member. It is characterized by having a member.
【０００７】上記手段によれば、建設残土の輸送速度を
調整するにあたっては、ナット部材を緩めて撹拌棒を回
動させた後、ナット部材を締込むことに伴い、撹拌羽根
の角度を調整すれば良い。また、撹拌棒や撹拌羽根が破
損した場合には、ナット部材を緩めて撹拌棒を筒部材か
ら取外し、撹拌棒や撹拌羽根を交換すれば良い。According to the above means, in adjusting the transport speed of the construction surplus soil, the angle of the stirring blade is adjusted by loosening the nut member and rotating the stirring rod, and then tightening the nut member. Good. When the stirring rod or the stirring blade is damaged, the nut member is loosened, the stirring rod is removed from the cylindrical member, and the stirring rod or the stirring blade may be replaced.
【０００８】請求項２記載の混合機は、ナット部材が、
撹拌棒のねじ部に螺合されるナット本体と、撹拌棒の本
体部の外周面に係合する筒部とから構成されているとこ
ろに特徴を有する。上記手段によれば、撹拌棒のうちね
じ部と本体部との境界部分がナット部材により補強され
る。このため、この境界部分に応力が集中して撹拌棒が
破損することが防止される。According to a second aspect of the present invention, the nut member comprises:
It is characterized by comprising a nut main body screwed into the screw portion of the stirring rod and a cylindrical portion engaged with the outer peripheral surface of the main body of the stirring rod. According to the above means, the boundary portion between the screw portion and the main body portion of the stirring rod is reinforced by the nut member. For this reason, it is possible to prevent the stress from being concentrated on this boundary portion and damage to the stirring rod.
【０００９】[0009]
【発明の実施の形態】以下、本発明の一実施例を図１乃
至図８に基づいて説明する。図８は、建設残土を改質す
る「建設残土再生利用システム」の概略を示すものであ
る。ここで、ベルトフィーダ１１上には投入ホッパー１
１ａが設けられており、建設残土を投入ホッパー１１ａ
内に投入すると、建設残土がベルトフィーダ１１に供給
され、矢印Ｂ方向へ搬送される。そして、ベルトフィー
ダ１１の下流側にはスクリーン１２が設置されており、
建設残土は、ベルトフィーダ１１からスクリーン１２に
供給され、スクリーン１２により篩分けされる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 8 schematically shows a “construction soil recycle system” for reforming construction soil. Here, the charging hopper 1 is placed on the belt feeder 11.
1a is provided, and a hopper 11a for inputting surplus soil from the construction.
When it is thrown into the inside, the remaining construction soil is supplied to the belt feeder 11 and transported in the direction of arrow B. A screen 12 is provided downstream of the belt feeder 11.
The construction waste is supplied from the belt feeder 11 to the screen 12 and is sieved by the screen 12.
【００１０】スクリーン１２により篩分けされた建設残
土は、混合機に相当するミキサー１３に投入される。そ
して、このミキサー１３には、建設残土と共に建設残土
改良剤（具体的には、三菱化成株式会社製の商品名「ソ
イルハード」）が投入されるようになっており、建設残
土は、ミキサー１３により建設残土改良剤と混合され
る。The construction waste soil sieved by the screen 12 is put into a mixer 13 corresponding to a mixer. In addition, a construction surplus soil improving agent (specifically, “Soil Hard” manufactured by Mitsubishi Kasei Co., Ltd.) is put into the mixer 13 together with the construction surplus soil. Mixed with the construction surplus soil improver.
【００１１】建設残土の性質は、遊離水の有無で大きく
変わる。例えば、軟弱な建設残土は、土壌粒子の間の遊
離水が多い状態としてモデル化される。この軟弱な建設
残土に建設残土改良剤を混合すると、建設残土改良剤が
遊離水に溶込み、疑似吸着水として土壌粒子の表面に固
定されるので、土壌の性質が大きく変化する。そして、
建設残土と建設残土改良剤との混合が進行することに伴
い、建設残土の造粒が進み、建設残土が団粒化される。[0011] The properties of construction surplus soil vary greatly depending on the presence or absence of free water. For example, soft construction surplus soil is modeled as having more free water between soil particles. When the construction surplus soil improving agent is mixed with the soft construction surplus soil, the construction surplus soil improving agent dissolves in the free water and is fixed on the surface of the soil particles as pseudo-adsorbed water, so that the properties of the soil greatly change. And
As the mixing of the construction surplus soil and the construction surplus soil improving agent progresses, granulation of the construction surplus soil proceeds, and the construction surplus soil is agglomerated.
【００１２】ミキサー１３により団粒化された建設残土
は、ミキサー１４に投入される。そして、このミキサー
１４には、建設残土と共に生石灰が投入されるようにな
っており、建設残土は、ミキサー１４により生石灰と混
合される。The construction waste soil aggregated by the mixer 13 is fed into the mixer 14. Then, quicklime is supplied to the mixer 14 together with the remaining construction soil, and the remaining construction soil is mixed with the quicklime by the mixer 14.
【００１３】団粒化された建設残土に生石灰を混合する
と、土壌粒子の表面に石灰が被覆されると共に、石灰と
建設残土改良剤とが反応して不溶化する。そして、被覆
した石灰が水と反応して消石灰となり、石灰分布が高い
表面から強度が増加するので、建設残土が流動性および
強度を備えた改良土になる。When quicklime is mixed with the aggregated construction residue, the surface of the soil particles is covered with lime, and the lime reacts with the construction residue improving agent to become insoluble. Then, the coated lime reacts with water to form slaked lime, and the strength increases from the surface having a high lime distribution, so that the remaining construction soil becomes an improved soil having fluidity and strength.
【００１４】本実施例は、建設残土と建設残土改良剤と
を混合するミキサー１３に本発明を適用したものであ
り、以下、ミキサー１３の詳細構成を図１〜図７に基づ
いて説明する。まず、図３において、基台１５の上面に
は混合槽１６が配設されている。この混合槽１６は、細
長な箱状をなすものであり、混合槽１６内には、図２に
示すように、円筒状をなす回転軸１７，１７が収容さ
れ、各回転軸１７の前後両端部（矢印Ａおよび反矢印Ａ
方向端部）は、混合槽１６を貫通して外部に突出してい
る。In this embodiment, the present invention is applied to a mixer 13 for mixing a construction waste soil and a construction waste soil improving agent, and a detailed configuration of the mixer 13 will be described below with reference to FIGS. First, in FIG. 3, a mixing tank 16 is provided on the upper surface of the base 15. The mixing tank 16 is formed in an elongated box shape. As shown in FIG. 2, the mixing tank 16 accommodates cylindrical rotating shafts 17, 17. Part (arrow A and counter-arrow A
Direction end) penetrates the mixing tank 16 and protrudes to the outside.
【００１５】基台１５の上面には、図３に示すように、
混合槽１６の前方および後方に位置して支持台１８が２
個ずつ設けられている（１個ずつ図示する）。そして、
各支持台１８には、図２に示すように、軸受１９が取付
けられており、各回転軸１７の前後端部は軸受１９に装
着されている。On the upper surface of the base 15, as shown in FIG.
The support table 18 is located in front of and behind the mixing tank 16.
Each is provided (one by one is shown). And
As shown in FIG. 2, a bearing 19 is attached to each support base 18, and the front and rear ends of each rotating shaft 17 are mounted on the bearing 19.
【００１６】基台１５には、図３に示すように、前端部
に位置して２個の支持台２０が設けられている（１個の
み図示する）。そして、これら各支持台２０の上面に
は、図２に示すように、モータ２１が取付けられ、各モ
ータ２１の回転軸には小ギア２２Ａが取付けられてい
る。As shown in FIG. 3, two supports 20 are provided at the front end of the base 15 (only one is shown). As shown in FIG. 2, a motor 21 is mounted on the upper surface of each of the support bases 20, and a small gear 22A is mounted on a rotating shaft of each motor 21.
【００１７】各回転軸１７の前端部には大ギア２２Ｂが
連結されている。そして、各組の小ギア２２Ａおよび大
ギア２２Ｂ間にはチェーン２３が掛渡されており、各モ
ータ２１が作動すると、モータ２１の回転力が小ギア２
２Ａ，チェーン２３，大ギア２２Ｂを介して回転軸１７
に減速して伝達され、各回転軸１７が回転する。A large gear 22B is connected to the front end of each rotating shaft 17. A chain 23 extends between each pair of the small gear 22A and the large gear 22B. When each motor 21 operates, the rotational force of the motor 21 is reduced by the small gear 2A.
2A, the chain 23, the rotating shaft 17 via the large gear 22B.
, And the rotation shafts 17 rotate.
【００１８】各回転軸１７には、混合槽１６内の前部に
位置して螺旋状のスクリュー２４が取付けられており、
各回転軸１７が回転すると、スクリュ２４ーが一体的に
回転する。そして、混合槽１６の上板にはホッパ２５が
設けられており、ホッパ２５内に建設残土および建設残
土改良剤を投入すると、混合槽１６内に建設残土および
建設残土改良剤が供給され、各スクリュ２４ーの回転に
伴い、矢印Ａ方向へ輸送される。A helical screw 24 is attached to each rotating shaft 17 at a position in the front of the mixing tank 16.
When each rotation shaft 17 rotates, the screw 24 integrally rotates. A hopper 25 is provided on the upper plate of the mixing tank 16. When the construction residual soil and the construction residual soil improver are put into the hopper 25, the construction residual soil and the construction residual soil improver are supplied into the mixing tank 16. As the screw 24 rotates, it is transported in the direction of arrow A.
【００１９】撹拌棒２６は、図５に示すように、円柱状
をなす本体部２６ａと、本体部２６ａより径小なねじ部
２６ｂと、平板部２６ｃとから構成されたものであり、
平板部２６ｃには貫通孔２６ｄ，２６ｄが形成されてい
る。そして、図６に示すように、撹拌羽根２７の中央部
には段付きの長孔２７ａが形成されており、図４に示す
ように、撹拌羽根２７の長孔２７ａを通して撹拌棒２６
の各貫通孔２６ｄにボルト２８を挿入し、各ボルト２８
にナット２８ａを締込むことに伴い、撹拌棒２６の平板
部２６ｃに撹拌羽根２７が取付けられている。As shown in FIG. 5, the stirring rod 26 comprises a main body 26a having a columnar shape, a screw 26b smaller in diameter than the main body 26a, and a flat plate 26c.
Through holes 26d, 26d are formed in the flat plate portion 26c. 6, a stepped long hole 27a is formed in the center of the stirring blade 27, and as shown in FIG. 4, the stirring rod 26 passes through the long hole 27a of the stirring blade 27.
The bolt 28 is inserted into each through hole 26d of the
The stirring blade 27 is attached to the flat plate portion 26c of the stirring rod 26 by tightening the nut 28a.
【００２０】撹拌羽根２７には、図６に示すように、長
孔２７ａの両側に位置して突部２７ｂ，２７ｂが設けら
れている。そして、これら各突部２７ｂは、図４に示す
ように、撹拌棒２６の平板部２６ｃの外面に係合し、撹
拌羽根２７を回り止め状態に拘束している。尚、撹拌羽
根２７の幅寸法Ｗは、図６に示すように、１４０ｍｍに
設定されている。また、撹拌棒２６の本体部２６ａの径
寸法Ｒは、図５に示すように、６０ｍｍに設定されてい
る。As shown in FIG. 6, the stirring blade 27 is provided with protrusions 27b, 27b located on both sides of the long hole 27a. As shown in FIG. 4, each of the projections 27b is engaged with the outer surface of the flat plate portion 26c of the stirring rod 26, and restrains the stirring blade 27 in a detent state. The width W of the stirring blade 27 is set to 140 mm as shown in FIG. The diameter R of the main body 26a of the stirring rod 26 is set to 60 mm as shown in FIG.
【００２１】各回転軸１７には、図１に示すように、円
筒状をなす複数の筒部材２９が溶接されている。これら
各筒部材２９は、回転軸１７を貫通しており、回転軸１
７の軸方向に沿って隣接する筒部材２９，２９相互間の
角度θは略９０°に設定されている。As shown in FIG. 1, a plurality of cylindrical members 29 having a cylindrical shape are welded to each rotating shaft 17. Each of these cylindrical members 29 penetrates the rotating shaft 17 and the rotating shaft 1
The angle θ between the adjacent cylindrical members 29 along the axial direction of 7 is set to approximately 90 °.
【００２２】各筒部材２９の内周面には、全域に渡って
ねじ部２９ａが形成されている。そして、各筒部材２９
のねじ部２９ａには、両端部から撹拌棒２６のねじ部２
６ｂが螺合されており、各回転軸１７には、図２に示す
ように、複数の撹拌羽根２６が装着されている。従っ
て、スクリュー２４，２４の回転に伴い矢印Ａ方向へ押
出された建設残土は、複数の撹拌羽根２７の回転に伴い
撹拌される。これにより、建設残土に建設残土改良剤が
混合される。On the inner peripheral surface of each cylindrical member 29, a screw portion 29a is formed over the entire area. Then, each cylindrical member 29
Of the stirring rod 26 from both ends.
As shown in FIG. 2, a plurality of stirring blades 26 are mounted on each rotating shaft 17. Therefore, the remaining construction soil extruded in the direction of arrow A with the rotation of the screws 24, 24 is stirred with the rotation of the plurality of stirring blades 27. As a result, the construction surplus soil improving agent is mixed with the construction surplus soil.
【００２３】各回転軸１７の前端部にはタイミングギア
３０が取付けられている。そして、これら両タイミング
ギア３０相互間を噛合させることに伴い、各回転軸１７
の回転タイミングを設定し、撹拌羽根２７相互間の衝突
を防止している。A timing gear 30 is attached to the front end of each rotating shaft 17. Then, as the two timing gears 30 mesh with each other, each of the rotating shafts 17
Is set to prevent collision between the stirring blades 27.
【００２４】図７に示すナット部材３１は、本体部３１
ａと、円筒部３１ｂとから構成されたものであり、各撹
拌棒２６のねじ部２６ｂには、図１に示すように、ナッ
ト部材３１の本体部３１ａが螺合されている。そして、
これら各本体部３１ａは、筒部材２９の端面に締結され
（いわゆるダブルナット）、撹拌棒２６を回止め状態に
拘束している。また、各円筒部３１ｂは、撹拌棒２６の
本体部２６ａの外周面に係合し、本体部２６ａとねじ部
２６ｂとの境界部分を補強している。The nut member 31 shown in FIG.
a and a cylindrical portion 31b, and a main body portion 31a of the nut member 31 is screwed to the screw portion 26b of each stirring rod 26 as shown in FIG. And
Each of these main parts 31a is fastened to the end face of the cylindrical member 29 (so-called double nut), and restrains the stirring rod 26 in a detented state. Each cylindrical portion 31b is engaged with the outer peripheral surface of the main body 26a of the stirring rod 26, and reinforces the boundary between the main body 26a and the screw 26b.
【００２５】各ナット部材３１の本体部３１ａには、図
７に示すように、凹部３１ｃが形成され、これら各凹部
３１ｃ内には、図１に示すように、Ｏリング３２Ａが装
着されている。そして、これら各Ｏリング３２Ａは、本
体部３１ａと筒部材２９の端面との間をシールしてい
る。また、各ナット部材３１の円筒部３１ｂには、図７
に示すように、凹部３１ｄが形成され、これら各凹部３
１ｄ内には、図１に示すように、Ｏリング３２Ｂが装着
されている。そして、これら各Ｏリング３２Ｂは、円筒
部３１ｂと撹拌棒２６の外周面との間をシールしてい
る。As shown in FIG. 7, concave portions 31c are formed in the main body portion 31a of each nut member 31, and an O-ring 32A is mounted in each concave portion 31c as shown in FIG. . Each of these O-rings 32A seals between the main body 31a and the end face of the tubular member 29. In addition, the cylindrical portion 31b of each nut member 31 has
As shown in FIG. 3, concave portions 31d are formed, and these concave portions 3d are formed.
As shown in FIG. 1, an O-ring 32B is mounted in 1d. Each of these O-rings 32B seals between the cylindrical portion 31b and the outer peripheral surface of the stirring rod 26.
【００２６】混合槽１６の上板には、図３に示すよう
に、開口部１６ａが形成されている。そして、混合槽１
６には、カバー板３３がボルト止めされており、開口部
１６ａはカバー板３３により覆われている。また、混合
槽１６の後端部には取出口１６ｂが設けられており、混
合槽１６内に投入された建設残土および建設残土改良剤
は、複数の撹拌羽根２７の回転に伴い混合および輸送さ
れ、取出口１６ｂを通して外部に押出される。An opening 16a is formed in the upper plate of the mixing tank 16, as shown in FIG. And mixing tank 1
A cover plate 33 is bolted to 6, and the opening 16a is covered by the cover plate 33. An outlet 16 b is provided at the rear end of the mixing tank 16, and the construction residual soil and the construction residual soil improver charged into the mixing tank 16 are mixed and transported with the rotation of the plurality of stirring blades 27. , And is pushed out through the outlet 16b.
【００２７】次に上記構成の作用について説明する。ホ
ッパ２５内に建設残土および建設残土改良剤を投入する
と、スクリュー２４，２４の回転に伴い、建設残土が矢
印Ａ方向へ輸送され、複数の撹拌羽根２７の回転に伴い
撹拌される。すると、建設残土が建設残土改良剤と混合
され、取出口１６ｂから押出される。Next, the operation of the above configuration will be described. When the construction residual soil and the construction residual soil improving agent are put into the hopper 25, the construction residual soil is transported in the direction of arrow A with the rotation of the screws 24, 24, and is stirred with the rotation of the plurality of stirring blades 27. Then, the construction waste soil is mixed with the construction waste soil improver and extruded from the outlet 16b.
【００２８】上記実施例によれば、建設残土の輸送速度
を調整するにあたっては、まず、カバー板３３を混合槽
１６から取外し、開口部１６ａを開放する。次に、ナッ
ト部材３１を緩めて撹拌棒２６を回動させ、撹拌羽根２
７の取付角度を調整した後、ナット部材３１を筒部材２
９に締込み、撹拌棒２６の回動を拘束する。そして、混
合槽１６にカバー板３３を装着することに伴い、開口部
１６ａを閉塞する。従って、ナット部材３１を操作する
だけで、建設残土の輸送速度が簡単に調整される。According to the above embodiment, when adjusting the transport speed of the construction surplus soil, first, the cover plate 33 is removed from the mixing tank 16 and the opening 16a is opened. Next, the nut member 31 is loosened and the stirring rod 26 is rotated, and the stirring blade 2 is rotated.
7, the nut member 31 is connected to the cylindrical member 2.
9 to restrain the rotation of the stirring rod 26. Then, as the cover plate 33 is attached to the mixing tank 16, the opening 16a is closed. Therefore, only by operating the nut member 31, the transport speed of the construction surplus soil is easily adjusted.
【００２９】また、建設残土が撹拌羽根２７相互間に詰
まって撹拌棒２６や撹拌羽根２７が破損した場合には、
混合槽１６の開口部１６ａを開放し、ナット部材３１を
緩めて撹拌棒２６を取外し、撹拌棒２６や撹拌羽根２７
を交換すれば良い。従って、ナット部材３１を操作する
だけで、装置の修理を簡単に行うことができる。In the case where the remaining soil is clogged between the stirring blades 27 and the stirring bar 26 or the stirring blade 27 is damaged,
The opening 16a of the mixing tank 16 is opened, the nut member 31 is loosened and the stirring rod 26 is removed, and the stirring rod 26 and the stirring blade 27 are removed.
Can be replaced. Therefore, the device can be easily repaired only by operating the nut member 31.
【００３０】また、ナット部材３１を本体部３１ａおよ
び円筒部３１ｂから構成し、円筒部３１ｂを撹拌棒２６
の本体部２６ａの外周面に係合させた。このため、撹拌
棒２６のうちねじ部２６ｂと本体部２６ａとの境界部分
がナット部材３１により補強されるので、この境界部分
に応力が集中して撹拌棒２６が破損することが防止され
る。The nut member 31 comprises a main body 31a and a cylindrical portion 31b, and the cylindrical portion 31b is
Of the main body 26a. For this reason, the boundary portion between the screw portion 26b and the main body portion 26a of the stirring bar 26 is reinforced by the nut member 31, so that stress is prevented from being concentrated on this boundary portion and the stirring bar 26 is prevented from being damaged.
【００３１】また、各回転軸１７に複数の筒部材２９を
固着し、隣接する筒部材２９相互間の角度を略「９０
゜」に設定した。このため、各回転軸１７が「＋」字状
に補強された形態になるので（図１参照）、各回転軸１
７が自重で撓むことが防止される。また、撹拌羽根２７
の幅寸法Ｗを１４０ｍｍに設定し、撹拌棒２６の本体部
２６ａの径寸法Ｒを６０ｍｍに設定した。このため、建
設残土を撹拌する際の抵抗力が撹拌羽根２７から撹拌棒
２６を通してナット部材３１に集中し、ナット部材３１
が緩んでしまうことが防止される。Further, a plurality of cylindrical members 29 are fixed to each rotating shaft 17, and the angle between the adjacent cylindrical members 29 is substantially "90".
゜ ”. For this reason, each of the rotating shafts 17 is reinforced in a “+” shape (see FIG. 1).
7 is prevented from bending under its own weight. In addition, the stirring blade 27
Was set to 140 mm, and the diameter R of the main body 26a of the stirring rod 26 was set to 60 mm. For this reason, the resistance force at the time of stirring the remaining construction soil concentrates on the nut member 31 from the stirring blade 27 through the stirring rod 26, and the nut member 31
Is prevented from loosening.
【００３２】また、ナット部材３１にＯリング３２Ａお
よび３２Ｂを装着し、ナット部材３１と筒部材２９との
間，ナット部材３１と撹拌棒２６との間をシールした。
このため、ナット部材３１の内部に建設残土が侵入して
しまうことが防止されるので、ナット部材３１の回動操
作が円滑化される。尚、上記実施例においては、混合槽
１６内に２本の回転軸１７を収容したが、これに限定さ
れるものではなく、例えば１本、あるいは、３本以上の
回転軸１７を収容しても良い。Further, O-rings 32A and 32B were mounted on the nut member 31 to seal between the nut member 31 and the cylindrical member 29 and between the nut member 31 and the stirring rod 26.
For this reason, since the construction residual soil is prevented from entering the inside of the nut member 31, the turning operation of the nut member 31 is facilitated. In the above embodiment, two rotary shafts 17 are accommodated in the mixing tank 16, but the present invention is not limited to this. For example, one or three or more rotary shafts 17 are accommodated. Is also good.
【００３３】また、上記実施例においては、撹拌羽根２
７の幅寸法Ｗを１４０ｍｍに設定し、撹拌棒２６の本体
部２６ａの径寸法Ｒを６０ｍｍに設定したが、これに限
定されるものではない。しかしながら、撹拌羽根２７か
ら撹拌棒２６を通してナット部材３１に過大な緩み力を
作用させない，撹拌羽根２７により建設残土を効率良く
撹拌するといった相反する目的を両立させる点から、
「Ｗ：Ｒ＝７：３」程度に設定することが好ましい。ま
た、上記実施例においては、筒部材２９の全域にねじ部
２９ａを形成したが、これに限定されるものではなく、
例えば、両端部の必要部分のみに形成しても良い。In the above embodiment, the stirring blade 2
7, the width W was set to 140 mm, and the diameter R of the main body 26a of the stirring rod 26 was set to 60 mm, but the invention is not limited to this. However, from the viewpoint of achieving both conflicting objectives such as not applying excessive loosening force to the nut member 31 from the stirring blade 27 through the stirring rod 26 and efficiently stirring the remaining construction soil by the stirring blade 27.
It is preferable to set “W: R = 7: 3”. Further, in the above embodiment, the screw portion 29a is formed in the entire region of the cylindrical member 29, but the present invention is not limited to this.
For example, it may be formed only at necessary portions at both ends.
【００３４】[0034]
【発明の効果】以上の説明から明らかなように、本発明
の混合機は次の効果を奏する。請求項１記載の手段によ
れば、撹拌羽根の角度を調整可能にしたので、建設残土
の輸送速度が簡単に調整されるようになる。しかも、撹
拌棒や撹拌羽根が破損した場合には、撹拌棒を取外して
交換すれば良いので、装置の修理が簡単化される。請求
項２記載の手段によれば、撹拌棒のうちねじ部と本体部
との境界部分をナット部材により補強した。このため、
この境界部分に応力が集中して撹拌棒が破損することが
防止される。As is apparent from the above description, the mixer of the present invention has the following effects. According to the first aspect of the present invention, since the angle of the stirring blade can be adjusted, the transport speed of the remaining construction soil can be easily adjusted. In addition, when the stirring bar or the stirring blade is damaged, it is sufficient to remove and replace the stirring bar, so that repair of the apparatus is simplified. According to the second aspect of the present invention, the boundary portion between the screw portion and the main body portion of the stirring rod is reinforced by the nut member. For this reason,
It is possible to prevent the stress from being concentrated on this boundary portion and damage to the stirring rod.
【図１】本発明の一実施例を示す図（要部を示す断面
図）FIG. 1 is a view showing an embodiment of the present invention (a cross-sectional view showing a main part).
【図２】混合機の上面図FIG. 2 is a top view of the mixer.
【図３】混合機の側面図FIG. 3 is a side view of the mixer.
【図４】撹拌棒に対する撹拌羽根の取付状態を示す図FIG. 4 is a diagram showing a state where a stirring blade is attached to a stirring rod.
【図５】撹拌棒を示す図FIG. 5 shows a stirring rod.
【図６】撹拌羽根を示す図FIG. 6 is a view showing a stirring blade.
【図７】ナット部材を示す図FIG. 7 shows a nut member.
【図８】建設残土再生利用システムの概略を示す図FIG. 8 is a diagram schematically showing a construction surplus soil recycling system.
【図９】従来例を示す図３相当図FIG. 9 is a diagram corresponding to FIG. 3 showing a conventional example.
１６は混合槽、１７は回転軸、２６は撹拌棒、２６ａは
本体部、２６ｂはねじ部、２７は撹拌羽根、２９は筒部
材、２９ａはねじ部、３１はナット部材、３１ａは本体
部、３１ｂは円筒部（筒部）を示す。16 is a mixing tank, 17 is a rotating shaft, 26 is a stirring rod, 26a is a main body, 26b is a screw part, 27 is a stirring blade, 29 is a cylindrical member, 29a is a screw part, 31 is a nut member, 31a is a main body, 31b shows a cylindrical part (cylindrical part).
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01F 7/00 - 7/32 B01F 15/00 - 15/06 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B01F 7 /00-7/32 B01F 15/00-15/06
Claims (2)
れる混合槽と、 この混合槽内に回転可能に収容された回転軸と、 この回転軸に固着され、内周面にねじ部を有する複数の
筒部材と、 ねじ部および本体部を有し、該ねじ部が前記各筒部材の
ねじ部に螺合された撹拌棒と、 これら各撹拌棒に取付けられ、前記回転軸の回転に伴い
建設残土を撹拌して建設残土改良剤と混合する撹拌羽根
と、 前記各撹拌棒のねじ部に螺合され、前記筒部材に締結さ
れたナット部材とを備えたことを特徴とする混合機。1. A mixing tank into which construction residual soil and a construction residual soil improver are charged, a rotating shaft rotatably housed in the mixing tank, and a threaded portion fixed to the rotating shaft and having an inner peripheral surface. A plurality of cylindrical members, a screw portion and a main body portion, a stirring rod screwed to the screw portion of each of the cylindrical members, and a stir bar attached to each of the stirring rods; A mixing machine, comprising: a stirring blade that stirs construction surplus soil and mixes it with a construction surplus soil improving agent; and a nut member screwed into a screw portion of each of the stirring rods and fastened to the cylindrical member.
れる本体部と、撹拌棒の本体部の外周面に係合する筒部
とから構成されていることを特徴とする請求項１記載の
混合機。2. The nut member comprises: a main body screwed into a screw portion of the stirring rod; and a cylindrical portion engaged with an outer peripheral surface of the main body of the stirring rod. The mixer according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23894896A JP3167942B2 (en) | 1996-09-10 | 1996-09-10 | Mixing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23894896A JP3167942B2 (en) | 1996-09-10 | 1996-09-10 | Mixing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1085576A JPH1085576A (en) | 1998-04-07 |
| JP3167942B2 true JP3167942B2 (en) | 2001-05-21 |
Family
ID=17037674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23894896A Expired - Fee Related JP3167942B2 (en) | 1996-09-10 | 1996-09-10 | Mixing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3167942B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014035834A (en) * | 2012-08-07 | 2014-02-24 | Iris Ohyama Inc | Straight tube type led lighting device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025348A (en) * | 1998-04-30 | 2000-02-15 | Kao Corporation | Oil and fat composition containing phytosterol |
| JP2000317289A (en) * | 1999-05-07 | 2000-11-21 | Nikko Co Ltd | Twin-shaft continuous mixer |
| JP3526015B2 (en) * | 1999-07-19 | 2004-05-10 | 日立建機株式会社 | Self-propelled soil improvement machine |
| JP2008207140A (en) * | 2007-02-28 | 2008-09-11 | Fujita Corp | Continuous agitation apparatus and continuous agitating method using it |
| JP7073088B2 (en) * | 2016-12-19 | 2022-05-23 | 太平洋セメント株式会社 | Soil reforming method |
| CN114991013B (en) * | 2022-04-22 | 2023-08-18 | 高速铁路建造技术国家工程研究中心 | Skylight point waterproof layer construction device and construction technology thereof |
-
1996
- 1996-09-10 JP JP23894896A patent/JP3167942B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014035834A (en) * | 2012-08-07 | 2014-02-24 | Iris Ohyama Inc | Straight tube type led lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1085576A (en) | 1998-04-07 |
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