JPS644735Y2 - - Google Patents
Info
- Publication number
- JPS644735Y2 JPS644735Y2 JP20119084U JP20119084U JPS644735Y2 JP S644735 Y2 JPS644735 Y2 JP S644735Y2 JP 20119084 U JP20119084 U JP 20119084U JP 20119084 U JP20119084 U JP 20119084U JP S644735 Y2 JPS644735 Y2 JP S644735Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- belt
- conductor
- conveyor belt
- carrier roller
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 15
- 230000005856 abnormality Effects 0.000 claims description 6
- 239000000615 nonconductor Substances 0.000 claims description 5
- 239000011295 pitch Substances 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 description 8
- 230000007257 malfunction Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案はコンベヤベルト縦裂き検出装置の改良
に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a conveyor belt longitudinal tear detection device.
（従来の技術）
従来、鉱石等を運搬するコンベヤベルトに於て
はシユート部からコンベヤベルトに搬送物が落下
する際、その中に混在する鉄片等の異物や、鋭利
な角部を有する大塊状の鉱石がコンベヤベルトに
突きささり、コンベヤベルトに挾持されて、移動
し、コンベヤベルトを下面から支持するキヤリヤ
ローラー装置にひつかかつて停止し、連続的に運
転、移動されるコンベヤベルトを長手方向に引き
裂く縦裂き事故を発生し、これがために高価なベ
ルトを使用不能に至らしめ、莫大な損失をこうむ
ることが屡々あつた。(Prior art) Conventionally, in a conveyor belt for conveying ore, etc., when the conveyed object falls from the chute section onto the conveyor belt, foreign objects such as iron pieces mixed in the conveyor belt and large lumps with sharp corners have been detected. The ore is pushed onto the conveyor belt, moved by the conveyor belt, and once stopped by a carrier roller device that supports the conveyor belt from below, the conveyor belt is continuously driven and moved in the longitudinal direction. This often resulted in vertical tearing accidents, which rendered expensive belts unusable and resulted in huge losses.
そこで、従来、その解決を図るべく、コンベヤ
ベルト内部に縦裂き検出機構を組み込んだ装置や
コンベヤベルト外部より縦裂き現象を検出する如
くなした装置等、各種の手段が検討され、講じら
れて来たが、コンベヤベルト装置に派生する振
動、ベルトの摩耗、風雨や粉塵などの影響を受け
て、折角のコンベヤベルト縦裂き検出装置が故障
や性能劣化や誤動作を起したり、設置や保守、保
全の煩雑さ、あるいは形状的に、コンベヤ装置自
体の点検、整備の邪魔になつて結局は取り外され
るなどして実際の縦裂き事故に際して確実にこれ
を検出し、防止することができない有様であつ
た。 Therefore, in order to solve this problem, various measures have been studied and taken, such as a device that incorporates a vertical tear detection mechanism inside the conveyor belt, and a device that detects the vertical tear phenomenon from the outside of the conveyor belt. However, due to vibrations derived from conveyor belt equipment, belt abrasion, wind, rain, dust, etc., the conveyor belt vertical tear detection equipment may break down, deteriorate in performance, malfunction, or cause problems in installation, maintenance, and maintenance. Due to the complexity or shape of the conveyor system, it becomes difficult to inspect and maintain the conveyor system itself, and it ends up being removed, making it impossible to reliably detect and prevent actual longitudinal tearing accidents. Ta.
そこで、本考案者等は、上記の如き実状に対処
し、かねて種々の検討を重ね、さきに第２図〜第
４図に示した如く、ベルト１裏面に略々一定ピツ
チで配置された導電体部２と、該ベルト１を支持
するキヤリヤローラー４表面に３カ所以上１０
ａ，１０ｂ，１０ｃ，１０a′，１０b′，１０c′互
いに隔離して設けた導電体部とにより少くとも２
つの電流回路を形成せしめ、該回路の何れか一方
に通電がない場合を異常として検出し、運転を停
止する如く構成した縦裂き検出装置を特公昭48−
9915号として提案し、更にその改良として第４
図、第５図の如くベルト裏面の導電体部２の前後
に非導電体部３を併設し耐摩耗性カバーゴムの特
性向上に伴なう電気抵抗値の低下の場合にもベル
ト裏面とキヤリヤローラーとの接触部での通電状
態を安定化させて誤動作を防止し得る縦裂き検出
装置を実願昭59−108564号（実開昭61−25319号）
として提案した。 Therefore, the inventors of the present invention, in response to the above-mentioned actual situation, have conducted various studies for some time, and as shown in FIGS. 10 at three or more locations on the surface of the body portion 2 and the carrier roller 4 that supports the belt 1.
a, 10b, 10c, 10a', 10b', 10c' at least two
A vertical tear detection device was developed in which two current circuits were formed, and when either one of the circuits was not energized, it was detected as an abnormality and the operation was stopped.
9915, and as an improvement, No. 4.
As shown in Fig. 5, non-conductive parts 3 are provided before and after the conductive part 2 on the back of the belt, so that even if the electrical resistance value decreases due to the improved characteristics of the abrasion-resistant cover rubber, the back of the belt and the Utility Model Application No. 59-108564 (Utility Model Application No. 61-25319) developed a vertical tear detection device that can prevent malfunction by stabilizing the energization state at the contact point with the rear roller.
proposed as.
（考案が解決しようとする問題点）
しかしながら、上記各提案に係るものは何れも
検出用のキヤリヤローラーの構造がローラーの外
周部と接触する構造となつているため、該ローラ
ー表面の導電体部と端子間に水や泥が付着した場
合には接触部での通電状態が安定化せず、誤動作
を起し易いという問題があり、又、端子が外部に
設けられているため、水や泥等が付着し、端子の
寿命が短かくなる等の欠点が見られた。(Problems to be solved by the invention) However, in each of the above proposals, the structure of the carrier roller for detection is such that it comes into contact with the outer periphery of the roller, so the conductor on the surface of the roller If water or mud adheres between the contact part and the terminal, there is a problem that the current conduction state at the contact part will not be stabilized and malfunction is likely to occur.Furthermore, since the terminal is installed externally, there is a problem that water or mud Disadvantages were observed, such as dirt and other substances adhering to the terminals, which shortened the life of the terminals.
本考案は上記の如き状況に対応し、従来の外周
部に取り付けた端子をキヤリヤローラーの内部に
取り付け、かつローラー表面の導電体部を突出さ
せることにより端子とローラー表面導電体部及び
ローラー表面導電体部とベルト導電体部の通電状
態を安定化させ、誤動作を防止すると同時に端子
の寿命を長くすることを目的とするものである。 In response to the above-mentioned situation, the present invention attaches the conventional terminal attached to the outer periphery inside the carrier roller and makes the conductor part on the roller surface protrude. The purpose of this is to stabilize the energization state between the conductor part and the belt conductor part, prevent malfunctions, and at the same time extend the life of the terminal.
（問題点を解決するための手段）
しかして、上記目的を達成する本考案の特徴と
するところは、前記提案に係る構成のコンベヤベ
ルトにおいて、第１図に示すように、検出用キヤ
リヤローラー４を改良し、該ローラーを固定のロ
ーラー軸１８を内蔵した中空ローラーとなし、非
導電体１１よりなるローラー表面に配置した導電
体部１０をローラー表面より突出せしめると共
に、ローラー軸端で回路に接続されるリード線２
０をローラー軸１８内を経て該軸１８に設けた穴
１９を通して引き出し、その先端に前記ローラー
表面の導電体部内面に接触する端子１５を設けた
構成となした点にある。(Means for Solving the Problems) The feature of the present invention for achieving the above object is that in the conveyor belt having the structure according to the above proposal, as shown in FIG. 4 is improved, the roller is made into a hollow roller with a built-in fixed roller shaft 18, and the conductor part 10 arranged on the roller surface made of a non-conductor 11 is made to protrude from the roller surface, and the roller shaft end is connected to the circuit. Lead wire 2 to be connected
0 is drawn out through a hole 19 provided in the roller shaft 18 through the inside of the roller shaft 18, and a terminal 15 is provided at the tip thereof to contact the inner surface of the conductor portion on the surface of the roller.
（作用）
叙上のように構成されたコンベヤベルトの縦裂
き検出装置は、キヤリヤローラー上を裏面に導電
体部が埋設配置されたベルトが通過するとき、正
常な場合は３個以上のキヤリヤローラー上の導電
体部内面に端子が接して構成される少くとも２つ
の回路が各々短絡され、該ベルト中の導電体部を
通じてこの２つの電流回路に電流が流れることに
なる。(Function) The vertical tear detection device for a conveyor belt configured as described above normally detects three or more carrier belts when a belt with conductive parts buried on the back side passes over the carrier roller. At least two circuits each having a terminal in contact with the inner surface of the conductor on the rear roller are short-circuited, and current flows through the two current circuits through the conductor in the belt.
このとき、各端子は検出制御装置に結合されて
いるので、上記の場合を正常として把握する。 At this time, since each terminal is coupled to the detection control device, the above case is recognized as normal.
一方、ベルトに縦裂きが発生すると、その発生
位置により何れかの方の回路が遮断され、従つて
この場合には一方の回路のみが通電することにな
り、これを異常として把握し、既知の手段にもと
づいてベルト運転を停止する。 On the other hand, if a vertical tear occurs in the belt, one of the circuits will be cut off depending on the location of the tear, so in this case only one circuit will be energized.This is recognized as an abnormality and the known Stop belt operation based on means.
なお、上記の態様から本考案においては２つの
通電回路を形成することが必須の要件である。何
故ならば、ベルトは元来不導体たるゴムで構成さ
れており、１つの回路のみの場合では、ベルト中
に埋設された導電体部の切断による不導なのか、
非導電体部の正常（切断されていない）での不導
なのかが判断できないからである。従つて、１回
路のみでの検出では従来技術に見られる如く「時
間」を検出回路に付加し、一定時間内で通電がな
かつた場合を「異常」としてとらえる複雑なタイ
ムリレーが必要となる。しかし、上記本考案にお
いてはかかることは不必要である。 Note that, from the above aspect, it is an essential requirement in the present invention to form two energizing circuits. This is because the belt is originally made of rubber, which is a non-conductor, and in the case of only one circuit, the non-conductivity may be due to cutting of the conductor part buried in the belt.
This is because it is not possible to determine whether the non-conductive portion is normal (not cut) and is non-conductive. Therefore, detection using only one circuit requires a complicated time relay that adds "time" to the detection circuit, as seen in the prior art, and detects as an "abnormality" when no current is supplied within a certain period of time. However, in the present invention, this is unnecessary.
（実施例）
以下、更に添付図面にもとづいて本考案の具体
的実施例を説明する。(Embodiments) Hereinafter, specific embodiments of the present invention will be described further based on the accompanying drawings.
第２図、第３図は本考案装置例を示す概要図で
あり、３本キヤリヤロールの場合を示しており、
コンベヤベルト１裏面において該ベルトを支承す
る如く配設されている。このキヤリヤロール４は
その外周部がポリウレタンゴム、キヤストナイロ
ン等の非導電体表面からなつており、表面には適
当な幅の導電体部が３カ所以上、互いに隔離して
設けられることによつて構成されている。 FIGS. 2 and 3 are schematic diagrams showing an example of the device of the present invention, and show the case of three carrier rolls,
It is disposed on the back side of the conveyor belt 1 to support the belt. The carrier roll 4 has an outer circumferential surface made of a non-conductive material such as polyurethane rubber or cast nylon, and is constructed by providing three or more conductive parts of appropriate widths on the surface, separated from each other. has been done.
即ち、第２図は左側の第１ロールに２カ所及び
右側の第３ロールに１カ所の導電体部１０ａ，１
０ｂ，１０ｃを配置した場合を示し、第４図は第
１、第２、第３ロールに各々１カ所の導電体部１
０a′，１０b′，１０c′を配設した場合を示してい
る。 That is, in FIG. 2, there are two conductor parts 10a, 1 on the first roll on the left side and one place on the third roll on the right side.
0b and 10c are arranged, and FIG.
The case where 0a', 10b', and 10c' are arranged is shown.
第４図及び第５図は上記の如き構成におけるコ
ンベヤベルト１の構成例であり、図において略一
定ピツチでベルトカバーゴム裏面に導電体部２が
配置されており、所要幅の導電性ゴム層よりなつ
ていて、その前後には絶縁性の高い非導電体部
３，３が併設構成されている。 4 and 5 show examples of the structure of the conveyor belt 1 having the above-mentioned structure. In the figures, the conductor parts 2 are arranged on the back side of the belt cover rubber at approximately constant pitches, and the conductive rubber layer has a required width. It is structured such that highly insulating non-conducting portions 3, 3 are arranged side by side in front and rear thereof.
この非導電性３，３は非導電性ゴム層よりな
り、通常は第５図イの如く導電体部２のベルト長
さ方向（矢印方向）の前後に所要幅をもつて設け
ることによつて充分であるが、第５図ロの如く導
電体部２を包み込むようにするのがより望まし
い。 The non-conductive layers 3, 3 are made of a non-conductive rubber layer, and are usually provided with a required width at the front and rear of the conductor portion 2 in the belt length direction (in the direction of the arrow) as shown in Fig. 5A. Although this is sufficient, it is more desirable to wrap the conductor portion 2 as shown in FIG. 5B.
しかし、コンベヤベルト裏面の導電体部構成は
上記に限らず、導電体部２単独で非導電体部３，
３が配置されていないものであつても差支えな
い。 However, the configuration of the conductor part on the back side of the conveyor belt is not limited to the above, and the conductor part 2 alone, the non-conductor part 3,
There is no problem even if 3 is not placed.
なお、前記第５図図示の配置においては、非導
電体部３，３の電気抵抗値はベルトカバーゴム５
の電気抵抗値106〜108Ωよりも大きい1010Ω以上
が望ましく、例えば通常の耐摩耗性カバーゴムか
らカーボンブラツクを除いたゴム配合物で、カバ
ーゴム５との区別がつくように着色（例えば白
色）しておくとよい。第５図中、６は抗張体を示
す。 In addition, in the arrangement shown in FIG.
It is desirable that the electrical resistance value is 10 10 Ω or more, which is larger than the 10 6 to 10 8 Ω.For example, it is a rubber compound obtained by removing carbon black from ordinary wear-resistant cover rubber, and is colored to distinguish it from the cover rubber 5. (For example, white). In FIG. 5, 6 indicates a tensile body.
一方、第１図イ，ロは前記本考案装置において
使用し、かつ本考案の要部をなすキヤリヤローラ
ー４の詳細を示しており、同図より明らかなよう
にキヤリヤローラー４はその外周部がポリウレタ
ンゴム、キヤストナイロン等の非導電体部１１を
もつて構成され、これがスチール管１２の表面に
嵌装（焼ばめの場合もある）されて形成されてい
る。 On the other hand, FIGS. 1A and 1B show details of the carrier roller 4, which is used in the device of the present invention and constitutes the essential part of the present invention. The non-conductive part 11 is made of polyurethane rubber, cast nylon, etc., and is fitted (or shrink-fitted in some cases) onto the surface of a steel tube 12.
そして、その表面には適宜、導電体部１０が３
カ所以上互いに隔離して設けられているが、この
導電体部１０は鉄、銅などからなり、外周部をキ
ヤリヤローラー４表面から数mm例えば５mm以内突
出した状態で配設されている。 Then, three conductor parts 10 are provided on the surface thereof as appropriate.
The conductor portion 10 is made of iron, copper, etc., and is provided in several locations separated from each other, with the outer peripheral portion protruding from the surface of the carrier roller 4 by several mm, for example, within 5 mm.
この導電体部１０はスチール管１２表面に溶接
によつて固定してもよいが、一体物として作つて
もよく、しかし、前記突出状態を保つことはベル
トとの接触を確実なものとする上に必要である。 This conductor portion 10 may be fixed to the surface of the steel tube 12 by welding, or may be made as an integral part. However, maintaining the protruding state is necessary to ensure reliable contact with the belt. is necessary.
しかして、前記キヤリヤローラー４は中空でそ
の内部に非回転固定のローラー軸１８を内蔵して
おり、その中心部には電気回路に結合されるリー
ド線２０が挿通されていて、該リード線２０はロ
ーラー軸１８に設けられた穴１９から引き出さ
れ、その先端に端子１５、例えばカーボンブラシ
又は他の耐摩耗性、耐導電性に優れた素材からな
るブラシが設けられていて、前記キヤリヤローラ
ー４の内筒１３に埋込まれた導電体部１０の内面
１４に接触するようになつている。 The carrier roller 4 is hollow and has a non-rotating fixed roller shaft 18 built therein, and a lead wire 20 connected to an electric circuit is inserted through the center of the carrier roller 4. 20 is pulled out from a hole 19 provided in the roller shaft 18, and a terminal 15 is provided at the tip thereof, for example, a brush made of a carbon brush or other material with excellent wear resistance and electrical conductivity. It is adapted to come into contact with the inner surface 14 of the conductor portion 10 embedded in the inner cylinder 13 of the roller 4 .
この場合、端子１５はその上面がキヤリヤロー
ラー回転中は回転する導電体部１０の内面１４と
絶えず接触摩擦するよう、ばね１７を介して設け
られ、また、導電体部１０表面からの電流が外部
に流れないようにするためローラー軸１８に埋め
込まれた絶縁性のホルダー１６で被覆している。 In this case, the terminal 15 is provided via a spring 17 so that its upper surface constantly contacts and rubs against the inner surface 14 of the rotating conductor section 10 during the rotation of the carrier roller, and the current from the surface of the conductor section 10 is In order to prevent it from flowing outside, it is covered with an insulating holder 16 embedded in the roller shaft 18.
なお、ローラー軸１８は両端で固定され回転す
ることはなく、カーボンブラシ等の端子１５は静
止状態にある。 Note that the roller shaft 18 is fixed at both ends and does not rotate, and the terminal 15 such as a carbon brush remains stationary.
図中、２１はベアリング、２２はオイルシー
ル、２３は絶縁性管体、２４は絶縁性ラビリンス
シール、２５は絶縁性止着板、２６はスチール管
体である。 In the figure, 21 is a bearing, 22 is an oil seal, 23 is an insulating tube, 24 is an insulating labyrinth seal, 25 is an insulating fastening plate, and 26 is a steel tube.
かくして、以上の如く構成された特殊検出機能
を備えたキヤリヤローラー４上を裏面に導電体２
を埋設した縦裂きのない正常なベルト１が通過す
る時、特殊検出用キヤリヤローラー４の導電体部
１０ａ，１０ｂが端子となる回路及び導電体部１
０ｂ，１０ｃが端子となる回路が各々短絡され、
該ベルト中の導電体部２を通じてこの２つの回路
に結合されているので、上記場合はそれを「正常
下として把握する。一方、ベルトに縦裂きが発生
した場合、その発生位置により何れかの回路が遮
断され、従つて、この場合は何れか一方の回路の
みが通電するのでこれを「異常」としてベルトの
運転が停止され、より以上のベルト縦裂きが阻止
される。 Thus, the conductor 2 is placed on the back side of the carrier roller 4 having the special detection function configured as described above.
When a normal belt 1 with no vertical tears embedded in the belt passes through, the conductor parts 10a and 10b of the special detection carrier roller 4 become terminals and the conductor part 1.
The circuits whose terminals are 0b and 10c are each short-circuited,
Since it is connected to these two circuits through the conductor part 2 in the belt, in the above case, it is considered to be under normal condition.On the other hand, if a vertical tear occurs in the belt, it may be either one of the two circuits depending on the location where it occurs. The circuit is cut off, and therefore, in this case, only one of the circuits is energized, so this is treated as an "abnormality" and the operation of the belt is stopped, thereby preventing further longitudinal tearing of the belt.
（考案の効果）
本考案は以上の如くベルト裏面に略々一定ピツ
チで配置された導電体部と、表面に３カ所以上、
互いに隔離する導電体部をもつキヤリヤローラー
との間に少くとも２つ以上の通電回路を形成し、
何れか一方の回路に通電がない場合を「異常」と
して検出し運転を停止するようにしたから、ベル
ト中に配設される導電体部のピツチを密にするこ
とにより縦裂きをより確実に、しかも早期に検出
できる、工業上、非常に顕著な効果を発揮すると
共に、
(イ) 端子をキヤリヤローラーの内部に設けたため
キヤリヤローラー導電体部と、端子間の接触が
よくなり、通電状態を安定させて誤動作を確実
に防止することができる。(Effects of the invention) As described above, the present invention includes conductive parts arranged at approximately constant pitches on the back side of the belt, and three or more places on the front side of the belt.
Forming at least two or more current-carrying circuits between the carrier roller and the carrier roller having conductive parts separated from each other,
If there is no current in one of the circuits, it is detected as an "abnormality" and the operation is stopped.By making the pitch of the conductive parts arranged in the belt tighter, vertical tearing can be prevented more reliably. Moreover, it can be detected at an early stage, and has a very remarkable effect industrially. It is possible to stabilize the state and reliably prevent malfunctions.
(ロ) 端子を内面に設けたため、水や泥が付着する
ことがなく、端子の寿命を大幅に改善する。(b) Since the terminal is provided on the inner surface, water and mud will not adhere to it, greatly improving the life of the terminal.
(ハ) キヤリヤローラー上の導電体部を突出させた
ため、ベルト導電体部との接触がよくなり、あ
わせて従来の面一上に比べ泥等が付着し難くな
る。(c) Since the conductor portion on the carrier roller is made to protrude, contact with the belt conductor portion is improved, and mud and the like are less likely to adhere to the carrier roller than on a conventional flat surface.
などの種々の効果を奏する。It has various effects such as.
第１図イは本考案装置の要部に係るキヤリヤロ
ーラーの実施例を示す部分断面図、第１図ロは前
記イのＢ−B′断面図、第２図及び第３図は本考
案装置におけるキヤリヤローラー配置態様を示す
正面概要図、第４図は本考案装置を備えたコンベ
ヤベルトの部分平面図、第５図イ，ロはコンベヤ
ベルトの導電体部の配置態様の各例を示す第４図
Ａ−A′断面図、第６図は検出装置の制御回路の
１例を示す概略図である。
１……コンベヤベルト、２……コンベヤベルト
導電体部、４……キヤリヤローラー、１０……キ
ヤリヤローラーの導電体部、１１……キヤリヤロ
ーラーの非導電体部。
Fig. 1A is a partial sectional view showing an embodiment of a carrier roller related to the main part of the device of the present invention, Fig. 1B is a sectional view taken along line B-B' of the above A, and Figs. FIG. 4 is a partial plan view of a conveyor belt equipped with the device of the present invention, and FIGS. FIG. 4 is a sectional view taken along line A-A', and FIG. 6 is a schematic diagram showing an example of a control circuit of the detection device. DESCRIPTION OF SYMBOLS 1... Conveyor belt, 2... Conveyor belt conductor part, 4... Carrier roller, 10... Conductor part of carrier roller, 11... Non-conductor part of carrier roller.
Claims (1)
た導電体部と、該ベルトを支承する非導電体より
なるキヤリヤローラー表面に３ケ所以上、互いに
隔離して設けた導電体部とにより少くとも２つの
電流回路を形成せしめ、該回路の何れか一方に通
電がない場合を異常として検出し、ベルトの運転
を停止する如く構成せしめたコンベヤベルト縦裂
き検出装置において、前記キヤリヤローラーを固
定のローラー軸を内蔵した中空ローラーとなし、
ローラー表面に設けた導電体部をローラー表面よ
り突出せしめると共に、ローラー軸端で回路に接
続されるリード線をローラー軸内を経て該軸に設
けた穴を通して引き出し、その先端に前記ローラ
ー表面の導電体部内面に接触する端子を設けたこ
とを特徴とするコンベヤベルト縦裂き検出装置。 At least three conductor parts are arranged at substantially constant pitches in the length direction on the back surface of the belt, and three or more conductor parts are provided on the surface of the carrier roller made of a non-conductor that supports the belt and are separated from each other. In a conveyor belt vertical tear detection device configured to form two current circuits, and to detect an abnormality when either of the circuits is not energized and to stop belt operation, the carrier roller is fixed. Hollow roller with built-in roller shaft,
A conductive portion provided on the roller surface is made to protrude from the roller surface, and a lead wire connected to a circuit at the end of the roller shaft is pulled out through a hole provided in the shaft through the inside of the roller shaft. A conveyor belt vertical tear detection device characterized by having a terminal that contacts the inner surface of the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20119084U JPS644735Y2 (en) | 1984-12-28 | 1984-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20119084U JPS644735Y2 (en) | 1984-12-28 | 1984-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61116618U JPS61116618U (en) | 1986-07-23 |
| JPS644735Y2 true JPS644735Y2 (en) | 1989-02-07 |
Family
ID=30762744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20119084U Expired JPS644735Y2 (en) | 1984-12-28 | 1984-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS644735Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2008056807A1 (en) | 2006-11-10 | 2010-02-25 | 株式会社ブリヂストン | Conveyor belt monitoring device |
-
1984
- 1984-12-28 JP JP20119084U patent/JPS644735Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61116618U (en) | 1986-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5661356A (en) | Motor shaft discharge device | |
| JP2009078801A (en) | Device for guiding aerial rope of mechanical lift installation with means for automatic stopping | |
| JPS644735Y2 (en) | ||
| KR910005528A (en) | Improved Carbon Brush Support with Brush Wear Detector | |
| US3172510A (en) | Cable reeling mechanism | |
| JPH0313459Y2 (en) | ||
| JPH0240034Y2 (en) | ||
| US4674235A (en) | Grinding wheel crack detector and method | |
| US4646912A (en) | Rip detector system | |
| CN107579627A (en) | The power supply device and field-winding type motor of field-winding type motor | |
| JPH0240035Y2 (en) | ||
| JPS644734Y2 (en) | ||
| US4653633A (en) | Electrical conductor | |
| JPH05346416A (en) | Method and device for detecting disconnected strand of overhead wire | |
| SE9503968L (en) | Towing device for a cable reel with a cable drum rotating on a stationary shaft | |
| CN211664048U (en) | Hydraulic tensioning device for belt conveyor with anti-tearing belt | |
| US3248979A (en) | System for detecting metal in a moving web | |
| JPS6484801A (en) | Auger filling machine | |
| JP3162417B2 (en) | Overhead line traveling machine wheels | |
| JPH0986820A (en) | Power supply device for elevator | |
| CN2159384Y (en) | Breakproof conveyer belt with wire-coil inside | |
| JPS62116336A (en) | Automatic conveyor vehicle | |
| CN219565060U (en) | Alarm device, alarm system and vehicle | |
| KR19980028401U (en) | Wear condition warning device for vehicle tires | |
| JPS6231326Y2 (en) |