JP2001089074A - Method for estimating service life of crane component - Google Patents

Method for estimating service life of crane component

Info

Publication number
JP2001089074A
JP2001089074A JP26522499A JP26522499A JP2001089074A JP 2001089074 A JP2001089074 A JP 2001089074A JP 26522499 A JP26522499 A JP 26522499A JP 26522499 A JP26522499 A JP 26522499A JP 2001089074 A JP2001089074 A JP 2001089074A
Authority
JP
Japan
Prior art keywords
life
equivalent operation
operation result
component
crane
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.)
Pending
Application number
JP26522499A
Other languages
Japanese (ja)
Inventor
Michihiro Tanaka
通弘 田中
Hajime Iinuma
肇 飯沼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Kiden Kogyo Ltd
Original Assignee
Hitachi Kiden Kogyo Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Kiden Kogyo Ltd filed Critical Hitachi Kiden Kogyo Ltd
Priority to JP26522499A priority Critical patent/JP2001089074A/en
Publication of JP2001089074A publication Critical patent/JP2001089074A/en
Pending legal-status Critical Current

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  • Control And Safety Of Cranes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a crane component service life estimating method capable of correctly estimating the service life. SOLUTION: A plurality of equivalent operation experience calculating formulae 31 are registered for each objective component, the equivalent operation experience for each registered equivalent operation experience calculating formula 31 is calculated for each component, the calculated equivalent operation experiences are accumulated and stored as the equivalent operation experience accumulation value, the equivalent operation experience accumulation value suitable for the service life estimation is selected in estimating the service life, and the service life of each component of a crane is estimated based on the selected equivalent operation experience accumulation value and the reference service life value.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、クレーンの構成部
品の余寿命(以下、本明細書において、「寿命」とい
う。)を、少ないデータ量で精度よく予測するのに適し
たクレーンの構成部品の寿命予測方法に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane component suitable for accurately predicting the remaining life of a crane component (hereinafter referred to as "life" in the present specification) with a small amount of data. The method for estimating the life of a vehicle.

【0002】[0002]

【従来の技術】クレーンは動力を用いて荷を吊り上げる
装置であり、重量物を吊り上げたりすることから、事故
等を防止するためにその構成部品、例えば、ワイヤロー
プ、電磁接触機等の寿命予測が必要となる。従来のクレ
ーンの構成部品の寿命予測方法は、寿命予測対象となる
クレーンの構成部品毎に一つの等価稼動実績計算式で計
算し、得られた計算結果を累積して等価稼動実績累積値
を算出し、この等価稼動実績累積値と構成部品毎の寿命
基準値とを比較することにより構成部品の寿命を予測し
ていた。
2. Description of the Related Art A crane is a device for lifting a load using power. Since a crane lifts a heavy object, the life expectancy of its components, for example, a wire rope, an electromagnetic contactor, etc., is prevented in order to prevent an accident or the like. Is required. The conventional method of estimating the life of components of a crane is calculated using one equivalent operation result calculation formula for each crane component whose life is to be predicted, and the obtained calculation results are accumulated to calculate the accumulated equivalent operation results. Then, the life of the component is predicted by comparing the equivalent operation result accumulated value with the life reference value of each component.

【0003】[0003]

【発明が解決しようとする課題】ところで、クレーンの
構成部品の等価稼動実績計算式及びこの計算式の定数
は、実績に基づいて決めることが多いが、構成部品の寿
命が長いにもかかわらず、クレーンが稼動して等価稼動
実績累積値データを採り始めてからの変更はできず、こ
のことから、従来の寿命予測方法では、稼動後に新たに
判明した構成部品寿命に関する実績を元にした最新の寿
命予測方法を反映させることができず、正確さに欠ける
という問題がある。
By the way, the equation for calculating the equivalent operation results of the components of the crane and the constants of the formulas are often determined based on the results. It is not possible to make changes after the crane starts operating and starts collecting equivalent operation result accumulated value data.Therefore, in the conventional life prediction method, the latest life is calculated based on the results of component life newly found after operation. There is a problem that the prediction method cannot be reflected and the accuracy is low.

【0004】この問題に対処するために、構成部品の稼
動状況のデータをすべて保存しておき、寿命予測時に最
新の寿命予測方法を反映した計算式と定数で寿命予測す
れば、正確な寿命予測が可能であるが、この場合、すべ
ての構成部品に対して寿命がくるまでの稼動状況をすべ
て保存しなければならないことになり、大容量の記憶装
置が必要で、しかも寿命予測時の計算量も大幅に増加す
るので、高速の処理装置が必要となり、実用的ではな
い。
In order to cope with this problem, if all the data on the operating conditions of the constituent parts are stored and the life is predicted using a calculation formula and a constant reflecting the latest life prediction method at the time of predicting the life, an accurate life prediction is achieved. However, in this case, it is necessary to save all the operating states of all the components until the end of their life, which requires a large-capacity storage device and the amount of calculation for estimating the life. Therefore, a high-speed processing device is required, which is not practical.

【0005】本発明は、上記従来のクレーンの構成部品
の寿命予測方法の有する問題点を解決し、従来と同程度
の処理装置で正確な寿命予測が可能な、クレーンの構成
部品の寿命予測方法を提供することを目的とする。
The present invention solves the above-mentioned problems of the conventional method for estimating the life of components of a crane, and a method for estimating the life of components of a crane, which can accurately predict the life of a crane using a processing apparatus equivalent to that of a conventional crane. The purpose is to provide.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するた
め、本発明のクレーンの構成部品の寿命予測方法は、予
測対象となる構成部品毎に複数の等価稼動実績計算式を
登録し、登録されたすべての等価稼動実績計算式に対す
る等価稼動実績をそれぞれ構成部品毎に算出するととも
に、算出された等価稼動実績を累積して等価稼動実績累
積値として記憶し、寿命予測するときに、そのときの寿
命予測に適合する等価稼動実績累積値を選択して、選択
した等価稼動実績累積値と寿命基準値とに基づいてクレ
ーンの構成部品の寿命を予測することを特徴とする。こ
こで、等価稼動実績とは、負荷変化等の構成部品の稼動
状況を考慮した実績のことをいい、等価稼動実績計算式
とはこの等価稼動実績を計算するための式、具体的に
は、 等価稼動実績=Σ(k×A) ここで、A:回数(=1) 時間(運転時間) 距離(運転距離) k:負荷率等による係数であって、k=(負荷÷定格負
荷)n n:部品の種類等で決まる係数(n=1〜7)である。 のことをいう。
In order to achieve the above object, a method for estimating the life of components of a crane according to the present invention is to register a plurality of equivalent operation results calculation formulas for each component to be predicted. The equivalent operation results for all the equivalent operation result calculation formulas are calculated for each component, and the calculated equivalent operation results are accumulated and stored as an equivalent operation result accumulation value. The present invention is characterized in that the equivalent operation result cumulative value suitable for the life prediction is selected, and the life of the crane components is predicted based on the selected equivalent operation result accumulation value and the life reference value. Here, the equivalent operation result refers to the result in consideration of the operation status of the component such as a load change, and the equivalent operation result calculation formula is a formula for calculating the equivalent operation result, specifically, Equivalent operation result = Σ (k × A) where A: number of times (= 1) time (operating time) distance (operating distance) k: coefficient based on load factor, etc., k = (load ÷ rated load) n n: Coefficients (n = 1 to 7) determined by the type of parts and the like. Means

【0007】上記の構成からなる本発明のクレーンの構
成部品の寿命予測方法は、構成部品の稼動データをすべ
て保存することなく、最新の稼働状況を寿命予測に反映
させられることから、既存の処理装置を用いながら、構
成部品の寿命予測精度を向上させることができる。
[0007] The method for estimating the life of components of a crane of the present invention having the above-described configuration allows the latest operation status to be reflected in the life prediction without saving all the operation data of the components. It is possible to improve the life prediction accuracy of component parts while using the device.

【0008】[0008]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0009】図1において、1は寿命予測の対象となる
構成部品からなるクレーン、2は本発明実施例の寿命予
測方法を組込んだ寿命予測装置、3は構成部品ファイル
をそれぞれ示している。
In FIG. 1, reference numeral 1 denotes a crane composed of components whose life is to be predicted, 2 denotes a life prediction device incorporating the life prediction method of the embodiment of the present invention, and 3 denotes a component file.

【0010】本実施例においては、寿命予測装置2にク
レーン1が接続されており、各構成部品の稼動状況がク
レーン1から逐次この寿命予測装置2に送られてくる。
この寿命予測装置2では、クレーン1の構成部品の稼動
状況を等価稼動実績計算部21で受信するように接続さ
れている。等価稼動実績計算部21には、入力として等
価稼動実績計算式31が接続されるとともに、出力とし
て等価稼動実績累積値記憶部36が接続されており、構
成部品毎に複数の等価稼動実績計算式31を使って、等
価稼働実績計算式31毎の等価稼動実績を計算し、その
結果を該当する構成部品の等価稼動実績累積値に加算
し、この値を等価稼動実績累積値記憶部36に記憶させ
る。この場合、構成部品の劣化度は、構成部品毎に、ま
た、負荷率等に影響されるので、以下の等価稼動実績計
算式を使って、負荷率等により補正した等価稼動実績累
積値を求めるようにする。 等価稼動実績累積値=Σ(k×A) ここで、A:回数(=1) 時間(運転時間) 距離(運転距離) k:負荷率等による係数であって、k=(負荷÷定格負
荷)n n:部品の種類等で決まる係数(n=1〜7)である。
In this embodiment, the crane 1 is connected to the life estimating device 2, and the operating status of each component is sequentially sent from the crane 1 to the life estimating device 2.
The life prediction device 2 is connected so that the equivalent operation result calculation unit 21 receives the operation status of the components of the crane 1. The equivalent operation result calculation unit 21 is connected with an equivalent operation result calculation formula 31 as an input and an equivalent operation result accumulation value storage unit 36 as an output. 31, the equivalent operation result is calculated for each equivalent operation result calculation formula 31, the result is added to the equivalent operation result accumulation value of the corresponding component, and this value is stored in the equivalent operation result accumulation value storage unit 36. Let it. In this case, the degree of deterioration of the component is affected by the load factor and the like for each component, and the equivalent operation result cumulative value corrected by the load factor and the like is obtained using the following equivalent operation result calculation formula. To do. Equivalent operation result cumulative value = Σ (k × A) where A: number of times (= 1) time (operating time) distance (operating distance) k: coefficient based on load factor, etc., and k = (load ÷ rated load) ) N n: Coefficients (n = 1 to 7) determined by the type of parts and the like.

【0011】次に、今回の寿命を計算するために、寿命
計算部22には、入力として等価稼動実績累積値記憶部
36、寿命計算式33、使用開始日時37、寿命基準値
34及び納期35が接続されるとともに、出力として寿
命記憶部38が接続されており、これらの入力の情報か
ら寿命を計算して寿命記憶部38に記憶させるようにな
っている。また、構成部品毎の寿命が警報レベル39以
下になったとき、構成部品毎に警報39aがセットされ
るようにする。この場合、寿命の計算は、以下の寿命計
算式を使って求めるようにする。寿命=((耐用予測値
−等価稼動実績累積値)/等価稼動実績累積値)×稼働
実績日数さらに、等価稼動実績累積値記憶部36は、等
価稼動実績計算式指定32で指定した等価稼動実績計算
式31で計算された等価稼動実績累積値を寿命計算部2
2に渡す。
Next, in order to calculate the current life, the life calculation section 22 receives as input the equivalent operation result accumulated value storage section 36, life calculation formula 33, use start date and time 37, life reference value 34 and delivery date 35. Are connected, and a life storage unit 38 is connected as an output. The life is calculated from the information of these inputs and stored in the life storage unit 38. When the service life of each component falls below the alarm level 39, an alarm 39a is set for each component. In this case, the life is calculated using the following life calculation formula. Life = ((durable predicted value−equivalent operation result accumulated value) / equivalent operation result accumulated value) × number of operation results days Further, the equivalent operation result accumulated value storage unit 36 stores the equivalent operation result specified by the equivalent operation result calculation formula specification 32. The equivalent operation result cumulative value calculated by the calculation formula 31 is used as the life calculation unit 2
Hand over to 2.

【0012】一方、出力制御部23には、入力として寿
命記憶部38及び警報39aが、出力として表示装置2
5及び印刷装置26が接続されるとともに、操作用とし
て入力装置24が接続されており、構成部品の警報39
aがセットされたとき、あるいは入力装置24から出力
を指示されたときに、これまでに計算された寿命が表示
装置25及び/又は印刷装置26に出力されるようにな
っている。
On the other hand, the output control unit 23 has a life storage unit 38 and an alarm 39a as inputs and the display device 2 as an output.
5 and the printing device 26 are connected, and the input device 24 is connected for operation.
When a is set or when an output is instructed from the input device 24, the life calculated so far is output to the display device 25 and / or the printing device 26.

【0013】なお、図2は構成部品ファイルのテーブル
を示すファイル構成図であって、構成部品毎に等価稼働
実績計算式、等価稼働実績累積値記憶部、等価稼働実績
計算式指定、寿命計算式、寿命基準値、納期、使用開始
日時、寿命記憶部について示している。
FIG. 2 is a file configuration diagram showing a table of component parts files. An equivalent operation result calculation formula, an equivalent operation result accumulation value storage unit, an equivalent operation result calculation formula designation, and a life calculation formula are shown for each component. , Life reference value, delivery date, use start date and time, and life storage unit.

【0014】このように、本実施例のクレーンの構成部
品の寿命予測方法では、予測対象となる構成部品毎に複
数の異なる等価稼動実績計算式を登録し、登録されたす
べての等価稼動実績計算式に対する等価稼動実績をそれ
ぞれ構成部品毎に算出するとともに、算出された等価稼
動実績を累積して等価稼動実績累積値として記憶する。
そして、寿命予測するときに、そのときの寿命予測に適
合する等価稼動実績累積値を選択して、選択した等価稼
動実績累積値と寿命基準値とに基づいてクレーンの構成
部品の寿命を予測する。
As described above, in the method for estimating the life of components of a crane of this embodiment, a plurality of different equivalent operation results calculation formulas are registered for each component to be predicted, and all registered equivalent operation results calculations are performed. The equivalent operation results for the formula are calculated for each component, and the calculated equivalent operation results are accumulated and stored as an equivalent operation result accumulation value.
Then, when estimating the life, the equivalent operation result cumulative value that matches the life prediction at that time is selected, and the life of the components of the crane is predicted based on the selected equivalent operation result accumulation value and the life reference value. .

【0015】これにより、構成部品の稼働データをすべ
て保存することなく、最新の寿命予測方法を反映させる
ことができ、既存の処理装置を用いながら、構成部品の
寿命予測精度を向上させることができる。さらに、構成
部品毎の納期及び警報レベルのデータも寿命予測に反映
させることができることから、各構成部品の調達計画、
在庫管理の精度をより向上させることが可能である。
Thus, the latest life expectancy prediction method can be reflected without saving all the operation data of the component parts, and the life prediction accuracy of the component parts can be improved while using the existing processing apparatus. . Furthermore, since the data of the delivery date and the alarm level for each component can be reflected in the life expectancy, the procurement plan of each component,
It is possible to further improve the accuracy of inventory management.

【0016】[0016]

【発明の効果】本発明のクレーンの構成部品の寿命予測
方法によれば、構成部品毎に複数の等価稼動実績計算式
を登録し、登録されたすべての等価稼動実績計算式に対
する等価稼動実績をそれぞれ算出するとともに、算出さ
れた等価稼動実績を累積して等価稼動実績累積値として
記憶し、寿命予測するときに、そのときの寿命予測に使
用する等価稼動実績累積値を選択することから、構成部
品の稼働データをすべて保存することなしに、最新の寿
命予測方法を反映させることができ、これにより既存の
処理装置を用いながら、構成部品の寿命予測精度を向上
させることができる。
According to the method for estimating the life of components of a crane according to the present invention, a plurality of equivalent operation result calculation formulas are registered for each component, and the equivalent operation results for all the registered equivalent operation result calculation formulas are calculated. Each is calculated, the calculated equivalent operation results are accumulated and stored as the equivalent operation result accumulation value, and when the life is predicted, the equivalent operation result accumulation value used for the life prediction at that time is selected. The latest life expectancy prediction method can be reflected without saving all the operation data of the parts, thereby improving the life estimation accuracy of the component parts while using the existing processing device.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の寿命予測方法に使用する装置を示すブ
ロック図である。
FIG. 1 is a block diagram showing an apparatus used for a life estimation method of the present invention.

【図2】同構成部品ファイルを示すファイル構成図であ
る。
FIG. 2 is a file configuration diagram showing the same component file.

【符号の説明】[Explanation of symbols]

1 クレーン 2 寿命予測装置 21 等価稼動実績計算部 22 寿命計算部 23 出力制御部 24 入力装置 25 表示装置 26 印刷装置 3 構成部品ファイル 31 等価稼動実績計算式 32 等価稼動実績計算式指定 33 寿命計算式 34 寿命基準値 35 納期 36 等価稼動実績累積値記憶部 37 使用開始日時 38 寿命記憶部 DESCRIPTION OF SYMBOLS 1 Crane 2 Life prediction device 21 Equivalent operation result calculation unit 22 Life calculation unit 23 Output control unit 24 Input device 25 Display device 26 Printing device 3 Component file 31 Equivalent operation result calculation formula 32 Equivalent operation result calculation formula designation 33 Life calculation formula 34 Life reference value 35 Delivery date 36 Equivalent operation result accumulated value storage unit 37 Start date and time 38 Life storage unit

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 クレーンの構成部品の寿命を予測する寿
命予測方法において、予測対象となる構成部品毎に複数
の等価稼動実績計算式を登録し、登録されたすべての等
価稼動実績計算式に対する等価稼動実績をそれぞれ構成
部品毎に算出するとともに、算出された等価稼動実績を
累積して等価稼動実績累積値として記憶し、寿命予測す
るときに、そのときの寿命予測に適合する等価稼動実績
累積値を選択して、選択した等価稼動実績累積値と寿命
基準値とに基づいてクレーンの構成部品の寿命を予測す
ることを特徴とするクレーンの構成部品の寿命予測方
法。
In a life prediction method for predicting the life of a crane component, a plurality of equivalent operation result formulas are registered for each component to be predicted, and an equivalent operation result is calculated for all registered equivalent operation result formulas. Calculates the operation results for each component, accumulates the calculated equivalent operation results and stores it as an equivalent operation result accumulation value. When estimating the life, the equivalent operation result accumulation value that matches the life prediction at that time And estimating the life of the components of the crane based on the selected equivalent operation result cumulative value and the life reference value.
JP26522499A 1999-09-20 1999-09-20 Method for estimating service life of crane component Pending JP2001089074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26522499A JP2001089074A (en) 1999-09-20 1999-09-20 Method for estimating service life of crane component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26522499A JP2001089074A (en) 1999-09-20 1999-09-20 Method for estimating service life of crane component

Publications (1)

Publication Number Publication Date
JP2001089074A true JP2001089074A (en) 2001-04-03

Family

ID=17414259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26522499A Pending JP2001089074A (en) 1999-09-20 1999-09-20 Method for estimating service life of crane component

Country Status (1)

Country Link
JP (1) JP2001089074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117416867A (en) * 2023-12-18 2024-01-19 河南恒达机电设备有限公司 Big data intelligent operation and maintenance method and system for crane and cloud platform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117416867A (en) * 2023-12-18 2024-01-19 河南恒达机电设备有限公司 Big data intelligent operation and maintenance method and system for crane and cloud platform
CN117416867B (en) * 2023-12-18 2024-03-08 河南恒达机电设备有限公司 Big data intelligent operation and maintenance method and system for crane and cloud platform

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