JPH05186196A - Weight measuring instrument for magnet type loader - Google Patents
Weight measuring instrument for magnet type loaderInfo
- Publication number
- JPH05186196A JPH05186196A JP3313966A JP31396691A JPH05186196A JP H05186196 A JPH05186196 A JP H05186196A JP 3313966 A JP3313966 A JP 3313966A JP 31396691 A JP31396691 A JP 31396691A JP H05186196 A JPH05186196 A JP H05186196A
- Authority
- JP
- Japan
- Prior art keywords
- load detector
- weight
- hydraulic ram
- plunger
- detection signal
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
- B66C1/06—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means electromagnetic
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は例えばスクラップ等の処
理材の積み込み、積み出し重量を計測するマグネット式
積込機用重量計測装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weight measuring device for a magnetic loader, which measures the weight of loaded and unloaded materials such as scraps.
【０００２】[0002]
【従来の技術】従来この種の重量計測装置として例えば
図６の如くピットａ内にトラックｂが乗り入れ可能な積
載板ｃを配設し、この積載板ｃに荷重検出器ｄ、例えば
圧縮型ロードセルを配設し、荷重検出器ｄに重量計測手
段ｅを接続して構成したものが知られている。2. Description of the Related Art Conventionally, as a weight measuring device of this kind, a loading plate c in which a track b can be loaded is provided in a pit a as shown in FIG. 6, and a load detector d, for example, a compression type load cell is mounted on the loading plate c. It is known that the load detector d is connected to the weight measuring means e.
【０００３】しかして例えばトラックからの積み出し作
業時においては、処理材ｆを積載した状態でトラックｂ
を積載板ｃ上に乗り入れ、荷重検出器ｄにより総重量を
検出し、重量計測手段ｅにより処理材ｆの重量を計測す
るように構成されている。However, for example, at the time of unloading work from a truck, the truck b is loaded with the processing material f loaded.
Is loaded on the loading plate c, the total weight is detected by the load detector d, and the weight of the processing material f is measured by the weight measuring means e.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記従来
構造の場合、ピットの構築が必要となるため設備コスト
が掛かって非経済的であり、また荷重検出器によりトラ
ックの重量を含めた総重量を検出する構造のためトラッ
クの重量はそれぞれ違うから処理材重量の計測構造が複
雑化し易いことがあるという不都合を有している。However, in the case of the above-mentioned conventional structure, it is uneconomical because the construction cost is required because the construction of the pit is required, and the total weight including the weight of the truck is detected by the load detector. Since the weights of the trucks are different due to such a structure, there is a disadvantage in that the structure for measuring the weight of the treated material tends to be complicated.
【０００５】[0005]
【課題を解決するための手段】本発明はこのような不都
合を解決することを目的とするもので、その要旨は、シ
ョベル系掘削機のバケットアームにスクラップ等の処理
材を磁着可能な電磁石からなるマグネット体を備えたマ
グネット式積込機において、上記バケットアームの先端
部に配設された上部フレームと、該上部フレームに接近
離反動作可能に配設された下部フレームと、上記マグネ
ット体に磁着された処理材の重量に応じた検出信号を出
力する荷重検出器と、該荷重検出器に接続された重量計
測手段とを備えてなり、該荷重検出器に油圧ラムを対設
し、該油圧ラムのプランジャを荷重検出器の検出部に当
接可能に設けて構成したことを特徴とするマグネット式
積込機用重量計測装置にある。An object of the present invention is to solve such inconvenience, and its gist is an electromagnet capable of magnetizing a bucket arm of an excavator excavator with a processing material such as scrap. In a magnet type loader including a magnet body, the upper frame is provided at the tip of the bucket arm, the lower frame is provided so as to be able to move toward and away from the upper frame, and the magnet body is provided. A load detector that outputs a detection signal according to the weight of the magnetically treated processing material, and a weight measuring means connected to the load detector, and a hydraulic ram is provided opposite to the load detector. A magnet-type loader weight measuring device characterized in that a plunger of the hydraulic ram is provided so as to be capable of contacting a detection portion of a load detector.
【０００６】[0006]
【作用】マグネット体で処理材を磁着してバケットアー
ムを持ち上げると下部フレームは上部フレームに対して
離反動作し、荷重検出器の検出部に油圧ラムのプランジ
ャが当接し、荷重検出器の検出部は処理材の重量に応じ
た力で押圧され、荷重検出器は検出信号を出力し、この
検出信号を受けて重量計測手段は処理材の重量を計測す
ることになる。[Operation] When the processing material is magnetically adhered by the magnet body and the bucket arm is lifted up, the lower frame moves away from the upper frame, and the plunger of the hydraulic ram comes into contact with the detection part of the load detector to detect the load detector. The part is pressed by a force corresponding to the weight of the processing material, the load detector outputs a detection signal, and the weight measuring means receives the detection signal and measures the weight of the processing material.
【０００７】[0007]
【実施例】図１乃至図５は本発明の実施例を示し、１は
ショベル系掘削機であって、下部走行機体１ａと上部旋
回機体１ｂからなり、上部旋回機体１ｂにブーム２を俯
仰動作可能に配設し、このブーム２にバケットアーム３
を俯仰動作可能に配設して構成している。1 to 5 show an embodiment of the present invention, in which a shovel excavator 1 is composed of a lower traveling machine body 1a and an upper turning machine body 1b, and a boom 2 is lifted up and down on the upper turning machine body 1b. It is possible to arrange it, and the bucket arm 3 is attached to this boom 2.
Is arranged so that it can be moved up and down.
【０００８】４は上部フレームであって、この場合バケ
ットアーム３の先端部に連結軸５により上部フレーム４
の一方側を枢着し、バケットアーム３に俯仰用シリンダ
６の基部を枢着軸７により枢着し、バケットアーム３の
先端部寄りにリンク８の基端部を枢着軸９により枢着
し、リンク８の先端部に上記俯仰用シリンダ６のロッド
６ａをリンク軸１０により連結し、リンク軸１０に取付
リンク１１の基端部を枢着し、取付リンク１１の先端部
に取付軸１２により上部フレーム４の他方側を枢着連結
して構成している。Reference numeral 4 denotes an upper frame. In this case, the upper end of the bucket arm 3 is connected to the upper frame 4 by a connecting shaft 5.
One side is pivotally attached, the base of the elevation cylinder 6 is pivotally attached to the bucket arm 3 by the pivot shaft 7, and the base end of the link 8 is pivotally attached by the pivot shaft 9 toward the tip of the bucket arm 3. Then, the rod 6a of the elevation cylinder 6 is connected to the tip of the link 8 by the link shaft 10, the base end of the attachment link 11 is pivotally attached to the link shaft 10, and the attachment shaft 12 is attached to the tip of the attachment link 11. Thus, the other side of the upper frame 4 is pivotally connected.
【０００９】１３は下部フレームであって、この場合上
部フレーム４の一方側に支点軸１４を横架し、下部フレ
ーム１３の一方端部に突出片１５を設け、突出片１５を
支点軸１４に枢着し、下部フレーム１３に励磁、消磁可
能な電磁石からなるマグネット体１６を取付け、下部フ
レーム１３を支点軸１４を中心として上部フレーム４に
対して若干近接離反揺動可能に設けて構成している。Reference numeral 13 denotes a lower frame. In this case, a fulcrum shaft 14 is laid horizontally on one side of the upper frame 4, a projecting piece 15 is provided at one end of the lower frame 13, and the projecting piece 15 is attached to the fulcrum shaft 14. A magnet body 16 made of an electromagnet that can be excited and demagnetized is attached to the lower frame 13, and the lower frame 13 is provided so as to be able to swing slightly toward and away from the upper frame 4 about a fulcrum shaft 14. There is.
【００１０】１７は荷重検出器であって、この場合圧縮
型ロードセルが採用され、上部フレーム４に取付板１８
を形成し、取付板１８に荷重検出器１７を取付け、荷重
検出器１７の検出部１９が上向きとなる状態で取付け、
荷重検出器１７を接続コード２０により荷重計測手段２
１に電気的に接続して構成している。Reference numeral 17 is a load detector, in which a compression type load cell is adopted, and a mounting plate 18 is attached to the upper frame 4.
And the load detector 17 is attached to the mounting plate 18, and the load detector 17 is attached with the detecting portion 19 facing upward.
The load detector 17 is connected to the load detector 17 by the connection cord 20.
1 to be electrically connected.
【００１１】２２は油圧ラムであって、この場合下部フ
レーム１３に立上ブラケット２３を取付け、立上ブラケ
ット２３に油圧ラム２２を荷重検出器１７に対向する状
態で取付け、油圧ラム２２のプランジャ２４が下向きと
なる状態で取付け、油圧ラム２２に油圧ホース２５によ
り図外の圧力制御弁及びリリーフ回路を介して油圧源に
接続し、油圧ラム２２内の圧力を設定可能とすると共に
プランジャ２４に設定圧以上の力が掛かったとき油圧ホ
ース２５内の油が図外のタンクへと逃げてプランジャ２
４が没入後退し得るように構成している。Reference numeral 22 denotes a hydraulic ram. In this case, a rising bracket 23 is attached to the lower frame 13, the hydraulic ram 22 is attached to the rising bracket 23 so as to face the load detector 17, and a plunger 24 of the hydraulic ram 22 is provided. Is installed in a downward direction and is connected to the hydraulic ram 22 by a hydraulic hose 25 via a pressure control valve and a relief circuit (not shown) to the hydraulic ram 22 so that the pressure inside the hydraulic ram 22 can be set and the plunger 24 is set. When a force over the pressure is applied, the oil in the hydraulic hose 25 escapes to the tank (not shown) and the plunger 2
4 is configured to be able to immerse and retract.
【００１２】２６はストッパー機構であって、この場合
上記下部フレーム１３にストッパー鉤部２７を形成し、
上部フレーム８の取付板１８にストッパー部２８を形成
し、上記荷重検出器１７の検出部１９と油圧ラム２２の
プランジャ２４との対向間隙ｔよりもストッパー鉤部２
７とストッパー部２８との対向間隙Ｔが大きくなるよう
に設定している。Reference numeral 26 is a stopper mechanism. In this case, a stopper hook portion 27 is formed on the lower frame 13,
A stopper portion 28 is formed on the mounting plate 18 of the upper frame 8 so that the stopper hook portion 2 is located farther than the facing gap t between the detection portion 19 of the load detector 17 and the plunger 24 of the hydraulic ram 22.
It is set so that the facing gap T between the stopper 7 and the stopper portion 28 becomes large.
【００１３】この場合荷重計測手段２１は、上記荷重検
出器１７からの検出信号を受けてマグネット体１６に磁
着された処理材ｆの磁着量を演算計測する演算部２９、
運転席近傍に設けられ、正味重量及び累積重量を表示す
る表示部３０及び過大な磁着に対するブザー等からなる
警報手段３１を備えて構成されている。In this case, the load measuring means 21 receives a detection signal from the load detector 17 and calculates and measures the magnetic attachment amount of the treatment material f magnetically attached to the magnet body 16,
The display unit 30 is provided near the driver's seat and displays a net weight and a cumulative weight, and is provided with an alarm unit 31 including a buzzer for excessive magnetism.
【００１４】この実施例は上記構成であるから、例えば
トラックｂにより運ばれてきたスクラップ等の処理材ｆ
を積み出し作業する場合、シュベル系掘削機１を操作し
てマグネット体１６を積み出すべき処理材ａに当接し、
マグネット体１６の電磁石を励磁して処理材を磁着し、
磁着状態でバケットアーム３を持ち上げると下部フレー
ム１３は上部フレーム４に対して支点軸１４を中心とし
て下向きに若干離反揺動動作し、この揺動により荷重検
出器１７の検出部１９に油圧ラム２２のプランジャ２４
が当接し、荷重検出器１７の検出部１９は磁着された処
理材ｆの重量に応じた力で押圧され、荷重検出器１７は
処理材ｆの重量に応じた検出信号を出力し、この検出信
号を受けて重量計測手段２１の演算部２９は処理材の重
量を計測し、表示部３０は計測値を表示することにな
る。Since this embodiment has the above-mentioned structure, the processing material f such as scrap carried by the truck b is f.
When carrying out the loading work, the shovel excavator 1 is operated to bring the magnet body 16 into contact with the processing material a to be loaded,
The electromagnet of the magnet body 16 is excited to magnetically attach the processing material,
When the bucket arm 3 is lifted in the magnetically attached state, the lower frame 13 slightly swings downward with respect to the upper frame 4 about the fulcrum shaft 14, and this swing causes the detecting portion 19 of the load detector 17 to move to the hydraulic ram. 22 plunger 24
Contacting each other, the detecting portion 19 of the load detector 17 is pressed by a force corresponding to the weight of the magnetically treated processing material f, and the load detector 17 outputs a detection signal corresponding to the weight of the processing material f. Upon receiving the detection signal, the calculation unit 29 of the weight measuring means 21 measures the weight of the processing material, and the display unit 30 displays the measured value.
【００１５】この下部フレーム１３が上部フレーム４に
対して支点軸１４を中心として若干離反揺動動作し、荷
重検出器１７の検出部１９が磁着された処理材ｆの重量
に応じた力で押圧されるとき、この検出部１９は直接下
部フレーム１３により押圧されずに油圧ラム２２のプラ
ンジャ２４により押圧されるため、当接初期時等の過大
な衝撃力はプランジャ２４が緩衝吸収することになり、
検出部１９の損傷を未然に防ぐことができ、また検出部
１９に過大な力が作用したときにはプランジャ２４が没
入後退して検出部１９の損傷を防止することができる。The lower frame 13 swings slightly with respect to the upper frame 4 about the fulcrum shaft 14, and the detecting portion 19 of the load detector 17 is subjected to a force corresponding to the weight of the magnetically treated material f. When pressed, the detection unit 19 is not directly pressed by the lower frame 13 but is pressed by the plunger 24 of the hydraulic ram 22, so that the excessive shock force at the time of initial contact is absorbed by the plunger 24. Becomes
It is possible to prevent damage to the detection unit 19, and also to prevent damage to the detection unit 19 by retracting and retracting the plunger 24 when an excessive force acts on the detection unit 19.
【００１６】またこの場合ストッパー機構２６のストッ
パー部２８がストッパー鉤部２７に当接し、下部フレー
ム１３の過剰な下向き揺動を阻止し、かつこの場合検出
部１９に過大な力が作用したときには表示部３０は計測
が不可能である旨の表示をなすことになる。Further, in this case, the stopper portion 28 of the stopper mechanism 26 contacts the stopper hook portion 27 to prevent excessive downward swinging of the lower frame 13, and in this case, when an excessive force acts on the detecting portion 19, a display is made. The unit 30 will display that measurement is impossible.
【００１７】尚、上記荷重検出器１７の構造並びに重量
計測手段２１の回路構成等は適宜変更して設計される。The structure of the load detector 17 and the circuit configuration of the weight measuring means 21 are appropriately changed and designed.
【００１８】[0018]
【発明の効果】本発明は上述の如く、マグネット体で処
理材を磁着してバケットアームを持ち上げると下部フレ
ームは上部フレームに対して離反動作し、荷重検出器の
検出部に油圧ラムのプランジャが当接し、荷重検出器の
検出部は処理材の重量に応じた力で押圧され、荷重検出
器は検出信号を出力し、この検出信号を受けて重量計測
手段は処理材の重量を計測することになり、この際荷重
検出器への過大な衝撃力は油圧ラムのプランジャが緩衝
吸収することになり、検出部の損傷を未然に防ぐことが
でき、それだけ計測能率を向上することができる。As described above, according to the present invention, when the processing material is magnetically adhered by the magnet body and the bucket arm is lifted, the lower frame moves away from the upper frame, and the plunger of the hydraulic ram is mounted on the detecting portion of the load detector. Contact with each other, the detection part of the load detector is pressed by a force corresponding to the weight of the processing material, the load detector outputs a detection signal, and the weight measuring means receives the detection signal and measures the weight of the processing material. In this case, the excessive impact force on the load detector is absorbed and absorbed by the plunger of the hydraulic ram, so that the detector can be prevented from being damaged and the measurement efficiency can be improved accordingly.
【００１９】以上、所期の目的を充分達成することがで
きる。As described above, the intended purpose can be sufficiently achieved.
【図１】本発明の実施例の全体側面図である。FIG. 1 is an overall side view of an embodiment of the present invention.
【図２】図１で示す実施例の部分断面図である。2 is a partial cross-sectional view of the embodiment shown in FIG.
【図３】図１で示す実施例の部分平断面図である。FIG. 3 is a partial plan sectional view of the embodiment shown in FIG.
【図４】図１で示す実施例の部分拡大断面図である。FIG. 4 is a partially enlarged sectional view of the embodiment shown in FIG.
【図５】図１で示す実施例の荷重計測手段のブロック図
である。5 is a block diagram of load measuring means of the embodiment shown in FIG. 1. FIG.
ｆ 処理材 １ ショベル系掘削機 ４ 上部フレーム １３ 下部フレーム １７ 荷重検出器 １９ 検出部 ２１ 荷重計測手段 ２２ 油圧ラム ２４ プランジャ f Processing material 1 Excavator excavator 4 Upper frame 13 Lower frame 17 Load detector 19 Detecting unit 21 Load measuring means 22 Hydraulic ram 24 Plunger
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１２月２２日[Submission date] December 22, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図６[Name of item to be corrected] Figure 6
【補正方法】追加[Correction method] Added
【補正内容】[Correction content]
【図６】 従来の重量計測装置の説明図である。FIG. 6 is an explanatory diagram of a conventional weight measuring device.
Claims (1)
クラップ等の処理材を磁着可能な電磁石からなるマグネ
ット体を備えたマグネット式積込機において、上記バケ
ットアームの先端部に配設された上部フレームと、該上
部フレームに接近離反動作可能に配設された下部フレー
ムと、上記マグネット体に磁着された処理材の重量に応
じた検出信号を出力する荷重検出器と、該荷重検出器に
接続された重量計測手段とを備えてなり、該荷重検出器
に油圧ラムを対設し、該油圧ラムのプランジャを荷重検
出器の検出部に当接可能に設けて構成したことを特徴と
するマグネット式積込機用重量計測装置。1. A magnet type loader having a bucket arm of an excavator excavator equipped with a magnet body made of an electromagnet capable of magnetizing a treatment material such as scrap, and an upper portion provided at a tip end portion of the bucket arm. A frame, a lower frame disposed so as to be able to move toward and away from the upper frame, a load detector for outputting a detection signal according to the weight of the processing material magnetically attached to the magnet body, and the load detector. And a hydraulic ram that is opposed to the load detector, and a plunger of the hydraulic ram is provided so as to be able to abut on a detection portion of the load detector. Magnet type loader for loaders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3313966A JP2829803B2 (en) | 1991-10-31 | 1991-10-31 | Weight measuring device for magnet type loading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3313966A JP2829803B2 (en) | 1991-10-31 | 1991-10-31 | Weight measuring device for magnet type loading machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05186196A true JPH05186196A (en) | 1993-07-27 |
| JP2829803B2 JP2829803B2 (en) | 1998-12-02 |
Family
ID=18047629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3313966A Expired - Fee Related JP2829803B2 (en) | 1991-10-31 | 1991-10-31 | Weight measuring device for magnet type loading machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2829803B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115008A (en) * | 2006-11-08 | 2008-05-22 | Hitachi Constr Mach Co Ltd | Fall prevention device of lifting magnet machine |
-
1991
- 1991-10-31 JP JP3313966A patent/JP2829803B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115008A (en) * | 2006-11-08 | 2008-05-22 | Hitachi Constr Mach Co Ltd | Fall prevention device of lifting magnet machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2829803B2 (en) | 1998-12-02 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |