JP2578227B2 - Crushing equipment - Google Patents
Crushing equipmentInfo
- Publication number
- JP2578227B2 JP2578227B2 JP1320665A JP32066589A JP2578227B2 JP 2578227 B2 JP2578227 B2 JP 2578227B2 JP 1320665 A JP1320665 A JP 1320665A JP 32066589 A JP32066589 A JP 32066589A JP 2578227 B2 JP2578227 B2 JP 2578227B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- elastic
- sleeve
- elastic expansion
- pressurized fluid
- 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 - Lifetime
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) この発明は、岩盤又はコンクリートブロック等の剛固
な対象物を破砕する破砕装置、特には、加圧流体の供給
により半径方向外方に載荷板を押し出すことにより対象
物を破砕する破砕装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a crushing device for crushing a rigid object such as a bedrock or a concrete block, and more particularly to a crushing device which is loaded radially outward by supplying a pressurized fluid. The present invention relates to a crushing device for crushing an object by extruding a plate.
(従来の技術) 岩盤、コンクリートブロック等の剛固な対象物を破砕
するには、予めそれらに穿孔された孔に、例えば、ダイ
ナマイト等の爆破薬を挿入して爆発させ、その爆発力に
より破砕する方法がある。(Prior art) In order to crush rigid objects such as bedrock and concrete blocks, for example, a blasting agent such as dynamite is inserted into holes drilled in advance and exploded, and crushed by the explosive force. There is a way to do that.
しかしながら、ダイナマイトの取り扱いには特別の資
格が必要とされ、また、その保管には充分な配慮を払わ
なければならず、一方、ダイナマイトの爆発時には、そ
の爆風等の影響を避けるため、作業領域から退避しなけ
ればならず、しかも、粉塵の発生が不可避であることか
ら、極めて作業性が悪いという問題があった。加えて、
その際には、極めて大きな騒音及び振動を伴うので、人
家に近接した区域内ではその使用が制限される等の欠点
もあった。However, special qualifications are required for handling dynamite, and due care must be taken in its storage. There is a problem that workability is extremely poor because it is necessary to evacuate and dust is inevitable. in addition,
At that time, since extremely loud noise and vibration are involved, there is a drawback that the use thereof is restricted in an area near a house.
一方、このような欠点を解決すべく、化学薬品を穿孔
部に注入し、それら薬品の化学反応に基づく膨張現象に
より岩盤やコンクリートブロックを静的に破砕する方法
も提案されているが、薬品の注入作業を伴うことに起因
してその適用範囲が制限されるばかりでなく、各薬品を
正確に計量しなければならず、加えて化学反応が完了す
るのに時間が掛かり作業効率が悪いと言う問題がある。
しかも、それら薬品には人体に有害な物質が含まれるも
のもあり、ダイナマイト同様に、その取り扱いに充分な
注意が要求され、価格的には高価である等の問題もあ
る。On the other hand, in order to solve such a drawback, a method has been proposed in which a chemical is injected into a perforated portion, and rock or concrete blocks are statically crushed by an expansion phenomenon based on a chemical reaction of the chemical. Not only does the application range be limited due to the infusion work, but also each chemical must be accurately weighed, and it takes time to complete the chemical reaction and the work efficiency is poor. There's a problem.
In addition, some of these chemicals contain substances harmful to the human body, and like dynamite, there are also problems such as the need for careful handling and high price.
このような問題を解決すべく、第8図に示したよう
に、例えば、NR等のゴム又はゴム状弾性材料よりなる筒
状の内面ゴム層10の外周に、耐張力に優れた繊維コー
ド、例えば、芳香族ポリアミド繊維(ケブラー:商品
名)コードを10゜〜20゜に編組んだ補強層12を張付け、
更にその外周にゴム又はゴム状弾性材料よりなる外面ゴ
ム層14を設けて加硫し、次いで、その内部への加圧流体
の給排を許容する封止部材16を両端部にそれぞれ装着し
て弾性膨張体18を形成し、この弾性膨張体18を、ゴム又
はゴム状弾性材料よりなる中空のスリーブ20に収納する
一方、その外周に、剛性が高く、好ましくは耐摩耗性に
優れた円弧形状をした複数の載荷板22を周方向に所定の
間隔で配設した破砕装置24が提案されている。なお、符
号26はかしめ金具であり、筒状体をその外方から封止部
材に強固に押圧して封止部材16が、補強層12が埋設され
た筒状体から抜け落ちるの確実に防止する。In order to solve such a problem, as shown in FIG. 8, for example, a fiber cord having excellent tensile strength is provided on the outer periphery of a cylindrical inner rubber layer 10 made of rubber or rubber-like elastic material such as NR. For example, a reinforcing layer 12 in which an aromatic polyamide fiber (Kevlar: trade name) cord is braided to 10 to 20 mm is stuck,
Further, an outer rubber layer 14 made of rubber or a rubber-like elastic material is provided on the outer periphery thereof and vulcanized, and then sealing members 16 permitting supply and discharge of a pressurized fluid to the inside thereof are attached to both ends, respectively. An elastic inflatable body 18 is formed, and this elastic inflatable body 18 is housed in a hollow sleeve 20 made of rubber or a rubber-like elastic material, while the outer periphery thereof has a high rigidity, preferably an arc shape having excellent wear resistance. A crushing device 24 has been proposed in which a plurality of loading plates 22 are arranged at predetermined intervals in the circumferential direction. Reference numeral 26 denotes a caulking fitting, which strongly presses the cylindrical body against the sealing member from the outside to reliably prevent the sealing member 16 from falling off from the cylindrical body in which the reinforcing layer 12 is embedded. .
この破砕装置24を用いて岩盤又はコンクリート等を破
砕するには、当該装置を予め岩盤に形成した掘削孔に挿
入し、次いで、弾性膨張体18に加圧流体を適用してその
半径方向外方への膨出、ひいてはスリーブ20の半径方向
外方への膨出に伴う、載荷板22の岩盤に対する押圧力の
適用下で、岩盤に堀削孔の拡径方向の力を作用させて亀
裂を生起させて破砕するものであり、弾性膨張体18に適
用する圧力が高い程、破砕能力が向上することとなる。In order to crush rock or concrete using the crushing device 24, the device is inserted into an excavation hole formed in the rock in advance, and then a pressurized fluid is applied to the elastic expansion body 18 so as to radiate outward in the radial direction. Under the application of the pressing force of the loading plate 22 against the rock due to the bulging of the sleeve 20 and the bulging of the sleeve 20 outward in the radial direction, the rock is subjected to the force in the direction of the diameter expansion of the excavation hole to the rock to crack. It is generated and crushed, and the higher the pressure applied to the elastic expansion body 18, the higher the crushing ability.
ここで、加圧流体の供給に伴う、弾性膨張体18の半径
方向の膨出は、編組み補強層12の繊維コードが静止角
(54゜44′)に近づく方向に変換することに基づいて行
われる。Here, the radial expansion of the elastic expansion body 18 due to the supply of the pressurized fluid is based on the fact that the fiber cord of the braided reinforcing layer 12 is converted to a direction approaching the stationary angle (54 ゜ 44 ′). Done.
(発明が解決しようとする課題) ところで、弾性膨張体への加圧流体の適用に際し、そ
れの半径方向への変形は、載荷板22と、岩盤又はコンク
リート等の被破砕物との当接下で規制されることにな
り、その弾性膨張の、半径方向外向きの力は、被破砕物
によって十分に支持されることになるも、それの軸端方
向に作用する力は何物によっても支持されないことか
ら、弾性膨張体の軸線方向には極めて大きな力が作用す
ることになり、それ故に、弾性膨張体を形成する補強層
12には、弾性膨張体の軸線方向の極めて大きな張力が作
用することとなる。このため、補強層12、ひいては、弾
性膨張体18の損傷のおそれが高く、遂にはそれが破断す
ることとなる。しかも、その場合には、封止部材16を含
む部分が軸線方向外方に飛び出すことがあり、最悪の場
合には、作業者並びに他の装置を損傷することともな
る。(Problems to be Solved by the Invention) By the way, when the pressurized fluid is applied to the elastic expansion body, its deformation in the radial direction is caused by the contact between the loading plate 22 and the object to be crushed such as rock or concrete. The radially outward force of the elastic expansion is sufficiently supported by the object to be crushed, but the force acting in the axial end direction is supported by anything. Therefore, an extremely large force acts in the axial direction of the elastic expansion body, and therefore, the reinforcing layer forming the elastic expansion body
12, a very large tension acts on the elastic expansion body in the axial direction. For this reason, there is a high possibility that the reinforcing layer 12, and eventually the elastic expansion body 18, will be damaged, and eventually it will break. Moreover, in this case, the portion including the sealing member 16 may protrude outward in the axial direction, and in the worst case, the operator and other devices may be damaged.
このため、弾性膨張体に適用する加圧流体の圧力を低
くすることも考えられるが、その場合にあっては、破砕
能力が低下することから、所期の目的を達成することが
できないこととなる。For this reason, it is conceivable to lower the pressure of the pressurized fluid applied to the elastic expansion body, but in this case, the crushing ability is reduced, and the intended purpose cannot be achieved. Become.
本発明は、このような問題に鑑みてなされたものであ
り、取り扱いが容易であり、且つ安全な破砕装置を提供
することをその目的とする。The present invention has been made in view of such a problem, and an object thereof is to provide a crushing device that is easy to handle and safe.
(課題を解決するための手段) この課題を達成するため、本発明装置にあっては、有
機又は無機質の高張力繊維を編組んだ補強層、補強層が
埋設されたゴム又はゴム状弾性材料よりなる管状体、そ
して管状体の両端部を封止し、少なくとも一端部で管状
体内部への加圧流体の給排を許容する封止部材を有し、
加圧流体の供給によって膨径変形する弾性膨張体と、弾
性膨張体を収納する中空のゴム又はゴム状弾性材料より
なるスリーブと、スリーブの外周にその軸線に沿って配
設されて軸線方向に延在する複数枚の剛性載荷板と、そ
れら載荷板の、少なくとも一端部に、スリーブの端面に
当接させた係止板および、載荷板と一体的に、またはそ
れに貫通させて設けられて係止板に係合する係合部材か
らなり、載荷板の、弾性膨張体の半径方向外方への変位
を許容すると共に、弾性膨張体の軸端方向に作用する力
を支持する拘束手段とを具える。(Means for Solving the Problems) In order to achieve this object, in the device of the present invention, a reinforcing layer braided with an organic or inorganic high-tensile fiber, a rubber or a rubber-like elastic material in which the reinforcing layer is embedded A tubular body made of, and a sealing member that seals both ends of the tubular body and allows supply and discharge of a pressurized fluid into the tubular body at least at one end,
An elastic inflatable body that expands and deforms by the supply of a pressurized fluid, a sleeve made of hollow rubber or a rubber-like elastic material that houses the elastic inflatable body, and is disposed along the axis of the outer periphery of the sleeve and extends in the axial direction. A plurality of extending rigid loading plates, a locking plate abutting at least one end of the loading plates abutting against the end face of the sleeve, and a member provided integrally with or penetrating the loading plate. A restraining means comprising an engaging member that engages with the stop plate, allowing the load plate to be displaced radially outward of the elastic expansion body, and supporting a force acting in the axial end direction of the elastic expansion body. Equipped.
(作 用) 破砕装置を、岩盤、コンクリートブロック等の被破砕
物に予め形成された穿孔部に挿入し、その弾性膨張体に
加圧流体を適用すると、その膨径変形に伴って、スリー
ブが半径方向外方に膨出するので、スリーブの外周に配
設された複数の載荷板が被破砕物を押圧する。このた
め、被破砕物には、穿孔部を拡径する方向の力が作用し
て亀裂が生じ、被破砕物を破砕することができる。(Operation) When a crushing device is inserted into a perforated portion formed in a crushed object such as a bedrock or a concrete block and a pressurized fluid is applied to the elastic inflatable body, the sleeve expands as the bulge deforms. Since the bulges outward in the radial direction, the plurality of loading plates disposed on the outer periphery of the sleeve press the crushed object. For this reason, a force is applied to the object to be crushed in a direction in which the diameter of the perforated portion is expanded, so that a crack is generated and the object to be crushed can be crushed.
一方、係止板と係合部材とからなり、弾性膨張体の半
径方向外方への載荷板の変位を許容する拘束手段は、弾
性膨張体への加圧流体の供給によってその軸端方向に作
用する力を、載荷板にてそれの長さ方向への相対変位を
拘束される係合部材をもって、それの係止板への係合下
で支持することになるので、加圧流体の適用に際し、弾
性膨張体を形成する補強層に過度の張力が作用すること
がなく、また、弾性膨張体に適用された加圧流体の有す
るエネルギーを、それの膨径方向の力に変換することも
できるので、破砕作業を効率良く行うことができる。な
お、破砕装置の端部を、岩盤等に形成した穿孔部の終端
部に当接させ得る場合にあっては、弾性膨張体の軸端方
向の力がその終端部によって支持されることになるの
で、破砕装置の挿入端側の拘束手段を省略することがで
きる。On the other hand, the restraining means, which includes a locking plate and an engaging member and allows displacement of the loading plate in the radially outward direction of the elastic expansion body, is provided in the axial end direction by supplying a pressurized fluid to the elastic expansion body. Since the acting force is supported by the loading plate with the engaging member restrained in the relative displacement in the longitudinal direction thereof under the engagement with the locking plate, application of the pressurized fluid is performed. At this time, no excessive tension acts on the reinforcing layer forming the elastic expansion body, and the energy of the pressurized fluid applied to the elastic expansion body can be converted into the force in the radial direction of the elastic expansion body. Therefore, the crushing operation can be performed efficiently. In the case where the end of the crushing device can be brought into contact with the end of the drilled portion formed in the rock or the like, the force in the axial end direction of the elastic expansion body is supported by the end. Therefore, the restraining means on the insertion end side of the crushing device can be omitted.
(実施例) 以下図面を参照しながら本発明装置について詳述す
る。(Example) Hereinafter, the device of the present invention will be described in detail with reference to the drawings.
第1図は、本発明破砕装置の好適な一実施例を断面に
して示す図であり、厚さ5mm〜15mmのNR、SBR等のゴム又
はゴム状弾性材料よりなる、内径5mm〜12mmとした筒状
の内面ゴム層30の外周に、有機又は無機質の高張力の繊
維コード、例えば、線径0.5mm〜2.0mmの芳香族ポリアミ
ド繊維(ケブラー:商品名)コード、又はスチールコー
ド等を10゜〜20゜、好ましくは10゜〜15゜に編組んだ補
強層32を張付け、更にその外周に厚さ3mm〜4mmとしたN
R、SBR等のゴム又はゴム状弾性材料、本実施例ではNRゴ
ムとして外面ゴム層34を設けて加硫して一体構造の筒状
体とする。FIG. 1 is a view showing a cross section of a preferred embodiment of the crushing device of the present invention, which is made of rubber or rubber-like elastic material such as NR or SBR having a thickness of 5 mm to 15 mm, and has an inner diameter of 5 mm to 12 mm. An organic or inorganic high-tension fiber cord, for example, an aromatic polyamide fiber (Kevlar: trade name) cord having a wire diameter of 0.5 mm to 2.0 mm, a steel cord, or the like, is provided on the outer periphery of the cylindrical inner rubber layer 30 by 10 mm. ~ 20 ゜, preferably 10 ゜ ~ 15 補強 braided reinforcing layer 32, and further around its outer periphery with a thickness of 3mm ~ 4mm N
A rubber or rubber-like elastic material such as R or SBR, in this embodiment, an outer rubber layer 34 is provided as an NR rubber and vulcanized to form a cylindrical body having an integral structure.
この筒状体の両端部に、内部への加圧流体の給排を許
容する封止部材36を、その両端部にそれぞれ一体的に固
着すると共に、一端が封止部材の周方向突起部に係合可
能なフランジ部を有する筒状のかしめ金具38を用いて圧
着し、それら筒状体及び封止部材36の分離を阻止する構
成とした弾性膨張体40を形成する。そして、この弾性膨
張体40を、NR、SBR等のゴム又はゴム状弾性材料よりな
り、第2図(a)又は(b)に斜視図を示す中空のスリ
ーブ42の中空部分に収納する一方、その外周に、剛性が
高く、好ましくは耐摩耗性に優れた円弧又は三日月形状
の複数の載荷板44を配設することは、第8図に示した従
来の破砕装置24と同様である。At both ends of the cylindrical body, sealing members 36 that allow the supply and discharge of the pressurized fluid to the inside are integrally fixed to both ends thereof, and one end is formed on the circumferential projection of the sealing member. An elastic inflatable body 40 having a configuration in which the cylindrical body and the sealing member 36 are prevented from being separated from each other by pressure bonding using a cylindrical caulking fitting 38 having an engageable flange portion is formed. The elastic expansion body 40 is made of rubber or a rubber-like elastic material such as NR or SBR, and is housed in a hollow portion of a hollow sleeve 42 whose perspective view is shown in FIG. 2 (a) or (b). Arranging a plurality of arc-shaped or crescent-shaped loading plates 44 having high rigidity and preferably excellent wear resistance on the outer periphery thereof is similar to the conventional crushing device 24 shown in FIG.
更に、本実施例にあっては、中央部に、弾性膨張体40
の封止部材36の突出部の貫通を許容する孔48が形成さ
れ、スリーブの横断面形状にはぼ等しい断面形状を有す
る係止板46を、弾性膨張体40の両端部にそれぞれ配設す
る。これら係止板46は、その周方向に、本実施例では、
相互にぼぼ90゜離間してその半径方向内方に延在させて
めねじ部50が形成されている。Further, in the present embodiment, the elastic inflatable body 40
A hole 48 is formed to allow the protrusion of the sealing member 36 to penetrate, and locking plates 46 having a cross-sectional shape almost equal to the cross-sectional shape of the sleeve are provided at both ends of the elastic expansion body 40, respectively. . In the present embodiment, these locking plates 46 are arranged in the circumferential direction.
A female thread portion 50 is formed to extend radially inward at a distance of approximately 90 ° from each other.
一方、本実施例にあっては断面形状を三日月形状とし
た4枚の載荷板44を弾性膨張体40の軸線方向にそれぞれ
延在させると共に、各載荷板44の、係止板46のめねじ部
50と対応する位置に貫通孔52をそれぞれ形成する。この
貫通孔52の直径は、係止板46のめねじ部50の谷径よりも
大きくする。On the other hand, in the present embodiment, the four loading plates 44 each having a crescent cross section are respectively extended in the axial direction of the elastic expansion body 40, and the female screw of the locking plate 46 of each loading plate 44 is formed. Department
A through hole 52 is formed at a position corresponding to 50. The diameter of the through hole 52 is set to be larger than the root diameter of the female screw portion 50 of the locking plate 46.
そして、係止ボルト54a及び54bを、載荷板44を貫通さ
せて係止板46のめねじ部50に螺合させる。即ち、それら
係止板46、係止ボルトは、載荷板44によって、それの長
さ方向への相対変位を直接的に拘束される係止ボルトに
対する、係止板46のねじ係合に基づき、弾性膨張体40の
軸端方向に作用する力を十分に支持する一方で、載荷板
44の破砕装置外方への変位を十分に許容する拘束手段を
形成する。Then, the locking bolts 54a and 54b are screwed into the female thread portion 50 of the locking plate 46 through the loading plate 44. That is, the locking plate 46 and the locking bolt are based on the screw engagement of the locking plate 46 with the locking bolt that is directly restrained by the loading plate 44 from being relatively displaced in its longitudinal direction. While sufficiently supporting the force acting in the axial end direction of the elastic expansion body 40, the loading plate
The crushing device of 44 is provided with a restraining means for sufficiently allowing displacement to the outside.
ここで、岩盤等の被破砕物に予め形成した掘削孔に挿
入される側に位置する係止板46に螺着する係止ボルト54
bは、弾性膨張体40が膨張する以前にあって、その螺着
状態において、その頭部が載荷板44の外表面から僅かに
突出するか、その表面にほぼ等しい高さとなるよう選択
することにより、被破砕物に予め形成した掘削孔への挿
入を一層容易なものとすることができ、一方、被破砕物
外部側に位置する係止ボルトは、その頭部をボルト径寸
法より大きくすることにより、載荷板44が弾性膨張体40
を収納したスリーブ42から外れるのを防ぐことができ
る。Here, a locking bolt 54 screwed to a locking plate 46 located on a side to be inserted into a drilling hole formed in advance in a crushed object such as a bedrock.
b, before the elastic expansion body 40 expands, and in its screwed state, its head should be selected to protrude slightly from the outer surface of the loading plate 44 or to have a height almost equal to the surface. Thereby, the insertion into the excavation hole previously formed in the object to be crushed can be further facilitated, while the locking bolt located outside the object to be crushed has its head larger than the bolt diameter. As a result, the loading plate 44 is
Can be prevented from being detached from the sleeve 42 in which is stored.
それ故、破砕作業に際して、弾性膨張体40に加圧流体
を適用すると、弾性膨張体40は、その両端部に配設した
係止板及び載荷板を貫通して係止板に螺合する係止ボル
トを具える拘束手段により、軸端方向に向く力を確実に
支持される一方、径方向外方への変形が許容されるの
で、弾性膨張体を構成する補強層に過度の張力を作用す
ることがなく、載荷板は、弾性膨張体の膨張に連れて被
破砕物を押圧することとなり、加圧流体の有するエネル
ギーを効率良く破砕作業に供することができる。Therefore, when a pressurized fluid is applied to the elastic inflatable body 40 during the crushing operation, the elastic inflatable body 40 penetrates the engaging plate and the loading plate disposed at both ends thereof and is screwed to the engaging plate. The restraining means including the stop bolts surely supports the force directed in the axial end direction, while allowing deformation outward in the radial direction, so that excessive tension acts on the reinforcing layer constituting the elastic expansion body. Therefore, the loading plate presses the crushed object with the expansion of the elastic expansion body, so that the energy of the pressurized fluid can be efficiently used for the crushing operation.
なお、第1図に示す破砕装置単体で破砕作業を行う場
合にあっては、通例、被破砕物の掘削孔側に位置する封
止部材36を閉止して、弾性膨張体内部に加圧流体を閉じ
込め得るよう構成することは勿論であるが、本発明装置
にあっては、加圧流体を適用した状態にあっても、弾性
膨張体が、その軸線方向に伸張することはないから、複
数個の破砕装置を直列に接続して用いても良く、また、
装置搬送時又は装着時に、係止ボルト54b側において載
荷板44がスリーブ42から外れるのを防止するため、載荷
板44とスリーブ42とを適当な接着剤を用いて接着する
か、載荷板44に粘着テープを卷回して一体的に止めるこ
とが好ましい。In the case of performing the crushing operation by the crushing device alone shown in FIG. 1, usually, the sealing member 36 located on the side of the digging hole of the crushed object is closed, and the pressurized fluid is introduced into the elastic expansion body. Of course, in the device of the present invention, even in the state where the pressurized fluid is applied, the elastic inflatable body does not extend in the axial direction. May be used by connecting the crushing devices in series,
In order to prevent the loading plate 44 from being detached from the sleeve 42 on the side of the locking bolt 54b at the time of transporting or mounting the device, the loading plate 44 and the sleeve 42 are bonded with an appropriate adhesive, or It is preferable to wind the adhesive tape and stop it integrally.
第3図は、スリーブ42が、第2図(b)に示したよう
に、その外周に軸線方向に延在すると共に、周方向に相
互に離間する突条を有する略円筒形状である点、また、
載荷板44の断面形状が円弧形状である点を除いて、第1
図に示した破砕装置と、実質的に同等な構成をしている
ので、その構成及び作用については説明を省略する。FIG. 3 shows that the sleeve 42 has a substantially cylindrical shape having, as shown in FIG. 2 (b), an axially extending outer periphery and ridges which are circumferentially separated from each other, as shown in FIG. 2 (b). Also,
Except that the cross-sectional shape of the loading plate 44 is an arc shape,
Since the configuration is substantially the same as the crushing device shown in the figure, the description of the configuration and operation will be omitted.
これに対し、第4図に示す他の実施例は、とくには、
被破砕物に予め形成した掘削孔に挿入される側で、略円
筒形状をしたスリーブ42の端面に当接する円板形状の係
止板56を配設するとともに、第3図に示す実施例の係止
ボルト54bに代えて、当該係止板の側に位置する各載荷
板44の端部分に、係止板56の半径方向内方側へ突出し
て、その係止板56の外端面に係合する係止ピン58を固着
したものである。On the other hand, another embodiment shown in FIG.
On the side to be inserted into the excavation hole formed in advance in the crushed object, a disk-shaped locking plate 56 that contacts the end surface of the substantially cylindrical sleeve 42 is arranged, and the embodiment shown in FIG. Instead of the locking bolt 54b, the loading plate 44 protrudes radially inward from the end portion of each loading plate 44 located on the locking plate side, and engages with the outer end surface of the locking plate 56. The mating locking pins 58 are fixed.
この実施例にあっても、弾性膨張体40は、係止板46、
56および、それらの係止板に係合する係止ボルト54a及
び係止ピン58により、それの軸端方向に向く力を十分に
支持され、この一方で、それの膨径に伴う載荷板44の半
径方向外方への運動は、係止ボルト54aおよび係止板56
に沿って変位する係止ピン58のそれぞれに案内されるこ
とになるので、第1図又は第3図に示した実施例と同様
な作用をなす。Also in this embodiment, the elastic inflatable body 40 includes the locking plate 46,
56 and a locking bolt 54a and a locking pin 58 which engage with the locking plate sufficiently support the force directed toward the axial end thereof, while the loading plate 44 accompanying the expansion diameter thereof. The radial outward movement of the locking plate 54a and the locking plate 56
Therefore, the operation is similar to that of the embodiment shown in FIG. 1 or FIG.
一方、第5図に示す別の実施例にあっては、弾性膨張
体40を収納したスリーブ42の外周に配設され、円筒の一
部をなす円弧断面形状のそれぞれの載荷板44の一端に、
その半径方向内方に突出させて係合片60を形成し、それ
ら係合片60を弾性膨張体40及びそれを収納したスリーブ
42の一端に対向させて配置したものであり、それらの係
合片はスリーブ42および弾性膨張体40のそれぞれの端面
への当接下で、そのスリーブ上の載荷板44に貫通する係
止ボルト54a及びそれにねじ係合する係止板46と協動し
て、弾性膨張体40の軸端方向に向く力を支持するととも
に、載荷板44の半径方向外方への運動を許容すべく機能
する拘束手段を構成する。On the other hand, in another embodiment shown in FIG. 5, one end of each of the loading plates 44 having an arc-shaped cross section which is disposed on the outer periphery of the sleeve 42 accommodating the elastic expansion body 40 and forms a part of a cylinder. ,
The engaging pieces 60 are formed by protruding inward in the radial direction, and the engaging pieces 60 are attached to the elastic inflatable body 40 and the sleeve in which the
The engagement piece is disposed opposite to one end of the sleeve 42, and the engagement piece is engaged with a respective end face of the sleeve 42 and the elastic expansion body 40, and the locking bolt penetrates the loading plate 44 on the sleeve. In cooperation with 54a and a locking plate 46 screwed thereto, it functions to support the force toward the axial end of the elastic expansion body 40 and allow the loading plate 44 to move outward in the radial direction. Construct the restraining means.
即ち、加圧流体が適用された弾性膨張体40において
は、それの軸端方向に作用する力は、その両端部にそれ
ぞれ位置する係止板46と、載荷板44から突出する係合片
60とのそれぞれによって支持される一方、それの膨径変
形は、それぞれ載荷板44の半径方向の変位の下で十分に
許容されることとなる。このときの載荷板44の半径方向
の変位は、それが、係止板46に螺着した係止ボルト54a
に沿って変位するとともに、その端部に突設した係合片
60がスリーブの端面に沿って相対変位することにより行
われる。また、弾性膨張体40を構成する補強層32への過
大な張力の作用は、拘束手段による、軸端方向に作用す
る力の支持によって有効に防止されるので、補強層の破
断、更には、封止部材及びかしめ金具を含む破断部分
が、外方に急に飛び出して作業者並びに周辺に配置され
た危機を破損することもない。That is, in the elastic inflatable body 40 to which the pressurized fluid is applied, the force acting in the axial end direction is caused by the locking plates 46 located at both ends thereof and the engagement pieces protruding from the loading plate 44.
While supported by each of the bearing plates 60, their bulging deformation will be well tolerated under the radial displacement of the loading plate 44, respectively. At this time, the displacement of the loading plate 44 in the radial direction is caused by the locking bolt 54a screwed to the locking plate 46.
The engagement piece which is displaced along
This is accomplished by a relative displacement of the sleeve 60 along the end face of the sleeve. Further, the action of excessive tension on the reinforcing layer 32 constituting the elastic expansion body 40 is effectively prevented by the support of the force acting in the axial end direction by the restraining means, so that the reinforcing layer is broken, and furthermore, The broken portion including the sealing member and the caulking fitting does not suddenly jump outward to damage the worker and the crisis arranged in the vicinity.
これに対し、第6図に示す本発明の更に別な実施例に
あっては、岩盤等に形成された穿孔部の終端側に位置す
る拘束手段を不要としたものである。On the other hand, in still another embodiment of the present invention shown in FIG. 6, there is no need for a restraining means located at the end side of a perforated portion formed in rock or the like.
これは、通例、当該穿孔部は、破砕装置の形状寸法に
ほぼ対応して形成されるので、挿入された装置の端部が
岩盤に対向して位置することとなり、弾性膨張体40に加
圧流体を適用した場合の、それの軸端方向に向く力が、
岩盤によって支持されるからであり、このような構成と
すくことにより、部品数及び製造工程数を低減すること
ができる。This is because, usually, the perforated portion is formed substantially corresponding to the shape and size of the crushing device, so that the end of the inserted device is located opposite to the rock, and the elastic expansion body 40 is pressurized. When a fluid is applied, the force toward its axial end is
This is because it is supported by the bedrock. With such a configuration, the number of parts and the number of manufacturing steps can be reduced.
また、第7図に示す他の実施例にあっては、弾性膨張
体40への加圧流体の適用に伴って、その半径方向外方に
変位する載荷板44の変位量を規定すべく、係止板46に一
体的に螺着された係止ボルト54aの頭部と、載荷板44と
の間に、係止ボルト54aの頭部直径より幅広としたスト
ッパーリング62を配設したものであり、ストッパーリン
グ62の内周面と、弾性膨張体40への加圧流体適用前の載
荷板44との間隔は、係止ボルト54aの寸法、いわゆる首
下長さを変更することにより、調整することができる。Further, in another embodiment shown in FIG. 7, in order to regulate the amount of displacement of the loading plate 44 displaced radially outward with the application of the pressurized fluid to the elastic expansion body 40, A stopper ring 62 wider than the head diameter of the locking bolt 54a is disposed between the head of the locking bolt 54a integrally screwed to the locking plate 46 and the loading plate 44. The distance between the inner peripheral surface of the stopper ring 62 and the loading plate 44 before applying the pressurized fluid to the elastic expansion body 40 is adjusted by changing the size of the locking bolt 54a, that is, the so-called under-neck length. can do.
この実施例の破砕装置によれば、載荷板44のそれぞれ
の端部に形成される係止ボルト54aが貫通する貫通孔を
比較的大きく形成し得るので、貫通孔の位置及び形状寸
法に対する要求を低く設定することができると共に、載
荷板との接触面積を大きく取ることができ、載荷板44及
び係止ボルト54aの局部的な接触を抑制し、より確実に
載荷板の運動を拘束することができる。また、ストッパ
ーリング62は、環状形状をしているので、それ自身載荷
板44の外方への運動を拘束し得るものであり、例え、過
大の加圧流体が弾性膨張体40に適用されたとしても、係
止ボルト54aに協動して載荷板44の運動を確実に拘束す
るので、係止ボルトが破損することがない。According to the crushing apparatus of this embodiment, since the through hole through which the locking bolt 54a formed at each end of the loading plate 44 can penetrate can be formed relatively large, there is a demand for the position and shape and size of the through hole. In addition to being able to be set low, a large contact area with the loading plate can be taken, suppressing local contact between the loading plate 44 and the locking bolt 54a, and more reliably restraining the movement of the loading plate. it can. Further, since the stopper ring 62 has an annular shape, the stopper ring 62 itself can restrain the outward movement of the loading plate 44.For example, excessive pressurized fluid is applied to the elastic expansion body 40. However, since the movement of the loading plate 44 is reliably restrained in cooperation with the locking bolt 54a, the locking bolt is not damaged.
(発明の効果) かくして、本発明によれば、軽量で、加圧流体の有す
るエネルギーを効率良く機械的な運動に変換することが
できるという、エアーバッグタイプの弾性膨張体の特徴
を損なうことなく、破砕作業を行うことができる。しか
も、弾性膨張体を構成する補強層には、過度の張力が作
用することがないので、補強層の損傷、更には、その破
損に起因する種々の問題のない破砕装置を提供すること
ができる。(Effects of the Invention) Thus, according to the present invention, it is possible to efficiently convert the energy of the pressurized fluid into mechanical motion without impairing the features of the airbag-type elastic inflatable body. , Can be crushed. Moreover, since an excessive tension does not act on the reinforcing layer constituting the elastic expansion body, it is possible to provide a crushing device which is free from damage to the reinforcing layer and, furthermore, various problems caused by the damage. .
第1図(a)は、本発明の好適な実施例の縦断面図、 第1図(b)及び(c)は、第1図(a)に示す装置の
それぞれの側面図、 第2図は、第1図に示す装置に適用し得るスリーブを示
す斜視図、 第3図〜第7図は、本発明の好適な別の実施例をそれぞ
れ示す縦断面図及びその側面図、そして、 第8図は、従来の破砕装置を示す縦断面図及びその側面
図である。 10,30……内面ゴム層、12,32……補強層 14,34……外面ゴム層、16,36……封止部材 18,40……弾性膨張体、20,42……スリーブ 22,44,……載荷板、26,38……かしめ金具 46……係止板、48……孔 50……めねじ部、52……貫通孔 54a,54b……係止ボルト、58……係止ピン 60……係合片、62……ストッパーリングFIG. 1 (a) is a longitudinal sectional view of a preferred embodiment of the present invention, FIGS. 1 (b) and (c) are side views of each of the devices shown in FIG. 1 (a), FIG. 3 is a perspective view showing a sleeve applicable to the apparatus shown in FIG. 1; FIGS. 3 to 7 are longitudinal sectional views and side views showing another preferred embodiment of the present invention; FIG. 8 is a longitudinal sectional view showing a conventional crusher and a side view thereof. 10,30 ... Inner rubber layer, 12,32 ... Reinforcement layer 14,34 ... Outer rubber layer, 16,36 ... Seal member 18,40 ... Elastic expansion body, 20,42 ... Sleeve 22, 44, Loading plate, 26, 38 Caulking bracket 46 Locking plate, 48 Hole 50 Female thread 52 Through hole 54a, 54b Lock bolt 58 Stop pin 60: engagement piece, 62: stopper ring
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−29698(JP,A) 特公 昭46−322(JP,B1) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-29698 (JP, A) JP-B-46-322 (JP, B1)
Claims (1)
角より小さい角度で編組んだ補強層、補強層が埋設され
たゴム又はゴム状弾性材料よりなる管状体、そして管状
体の両端部を封止し、少なくとも一端部で、管状体内部
への加圧流体の給排を許容する封止部材を有し、加圧流
体の供給によって膨径変形する弾性膨張体と; 弾性膨張体を収納する中空のゴム又はゴム状弾性材料よ
りなるスリーブと; スリーブの外周に、それの周方向に所要の間隔で配設さ
れて軸線方向に延在する複数枚の剛性載荷板と; それら載荷板の少なくとも一端部に、前記スリーブの端
面に当接させた係止板および、前記載荷板と一体的に、
またはそれに貫通させて設けられて係止板に係合する係
合部材からなり、載荷板の、弾性膨張体の半径方向外方
へ変位を許容すると共に、弾性膨張体の軸端方向に作用
する力を支持する拘束手段と; を備えてなることを特徴とする破砕装置。1. A reinforcing layer in which an organic or inorganic high tension maintaining cord is braided at an angle smaller than a static angle, a tubular body made of rubber or a rubber-like elastic material in which the reinforcing layer is embedded, and both ends of the tubular body. An elastic inflatable body that has a sealing member that allows supply and discharge of the pressurized fluid to the inside of the tubular body at least at one end, and that expands and deforms by supplying the pressurized fluid; A sleeve made of a hollow rubber or rubber-like elastic material; a plurality of rigid loading plates disposed on an outer periphery of the sleeve at a required interval in a circumferential direction thereof and extending in an axial direction; At least at one end, a locking plate abutted on the end surface of the sleeve, and integrally with the load plate described above,
Or an engaging member provided penetrating therethrough and engaging with the locking plate, and allows the loading plate to be displaced radially outward of the elastic expansion body and acts in the axial end direction of the elastic expansion body. And a restraining means for supporting the force.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1320665A JP2578227B2 (en) | 1989-12-12 | 1989-12-12 | Crushing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1320665A JP2578227B2 (en) | 1989-12-12 | 1989-12-12 | Crushing equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03183894A JPH03183894A (en) | 1991-08-09 |
JP2578227B2 true JP2578227B2 (en) | 1997-02-05 |
Family
ID=18123958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1320665A Expired - Lifetime JP2578227B2 (en) | 1989-12-12 | 1989-12-12 | Crushing equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2578227B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101014782B1 (en) * | 2010-07-19 | 2011-02-14 | 주식회사 디에스21 | In-line crusher |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6229698A (en) * | 1985-07-31 | 1987-02-07 | 住友精密工業株式会社 | Crusher |
-
1989
- 1989-12-12 JP JP1320665A patent/JP2578227B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH03183894A (en) | 1991-08-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2018265328B2 (en) | Friction rock bolt | |
JPS6261803B2 (en) | ||
US5882148A (en) | Apparatus for yielding support of rock | |
US20070235191A1 (en) | Push/pull belleville stack for use with zertech MTM seal | |
JP2578227B2 (en) | Crushing equipment | |
CA2605208A1 (en) | Bolt assembly | |
US5013192A (en) | Dynamic rock stabilizing fixture | |
KR100972628B1 (en) | An rock split device with no-vibration | |
KR100851944B1 (en) | An outside tube assembly for rock split device with no-vibration | |
JP2594626B2 (en) | Crushing method using elastic expansion body | |
JP3762698B2 (en) | Primary lining structure of shield tunnel | |
KR100908619B1 (en) | An rock split device with no-vibration | |
KR200410592Y1 (en) | Anchor Unit for slope-reinforcement-construction | |
CN114856664A (en) | Installation device of prestressed anchor rod, operation arm and anchor rod installation method | |
US4711501A (en) | Rock crushing device | |
JPH0141836Y2 (en) | ||
KR19980020574U (en) | Rock crush | |
AU2020100343A4 (en) | Nut and mesh plate | |
JP2000213289A (en) | Joining structure | |
JP2002070493A (en) | Joint structure of concrete structure | |
JP2956831B2 (en) | Hinge structure and expansion structure of tunnel support material | |
JP3284026B2 (en) | Lock bolt fall prevention bracket | |
JPS6253680B2 (en) | ||
JP2001020689A (en) | Flexible segment | |
JP3457647B2 (en) | Segment with bag |