JPH08285669A - Method for measuring weight value of hanging load from mechanism output of hoisting motor - Google Patents
Method for measuring weight value of hanging load from mechanism output of hoisting motorInfo
- Publication number
- JPH08285669A JPH08285669A JP12555995A JP12555995A JPH08285669A JP H08285669 A JPH08285669 A JP H08285669A JP 12555995 A JP12555995 A JP 12555995A JP 12555995 A JP12555995 A JP 12555995A JP H08285669 A JPH08285669 A JP H08285669A
- Authority
- JP
- Japan
- Prior art keywords
- hoisting
- load
- mechanical output
- efficiency
- power
- 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
Links
- 238000000034 method Methods 0.000 title abstract description 7
- 238000004804 winding Methods 0.000 claims description 41
- 239000000725 suspension Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 abstract description 16
- 230000001133 acceleration Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 7
- 239000000047 product Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000011265 semifinished product Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Control And Safety Of Cranes (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は公式な測定値の必要の
ない製品若しくは中間行程での半製品又はその他の重量
物（以下重量物）の重量を秤量機を使用せずに起重機等
で吊り上げただけで測定する，将来所定の精度が得られ
れば既設の秤量機の代替機とする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention lifts the weight of a product that does not require an official measurement value, a semi-finished product in an intermediate process, or other heavy objects (hereinafter referred to as "heavy objects") without using a weighing machine. It will be used as an alternative to the existing weighing machine if it can be measured by just doing it, and if the specified accuracy is obtained in the future.
【０００２】既に重量値が判明している重量物を倉庫等
から搬出する時，既知の重量値と起重機等で吊り上げ時
に算出した重量物等の重量値を比較することにより目的
の重量物かどうか現品の確認に利用する。When a heavy object whose weight value is already known is carried out from a warehouse or the like, whether or not the object is the target heavy object by comparing the known weight value with the weight value of the heavy object calculated at the time of hoisting by a hoist or the like. Used to check the actual product.
【０００３】起重機等で重量物を吊り上げ時，クレーン
オペレータに重量値を知らせることにより起重機等の安
全運転に貢献する。When a heavy object is hoisted by a hoist or the like, the crane operator is notified of the weight value to contribute to safe operation of the hoist or the like.
【０００４】[0004]
【従来の技術】重量物の測定はロードセル等を利用した
秤量機による。2. Description of the Related Art Measurement of heavy objects is performed by a weighing machine using a load cell or the like.
【０００５】[0005]
【発明が解決しようとする課題】重量物の秤量機自体は
高価であり且つ大きいため広い設置スペースが必要であ
るその為秤量機導入費用が高価になる。Since the weighing machine itself is expensive and large, and requires a large installation space, the cost of introducing the weighing machine is high.
【０００６】重量を測定する場合起重機等で重量物を秤
量機まで運搬し秤量台に乗せて秤量する工程があり秤量
に時間を要しているので秤量工程の時間を短縮する。In the case of measuring the weight, there is a step of carrying a heavy object to a weigher by a hoist or the like and placing it on a weighing table to weigh it. Since it takes time to weigh, the time of the weighing step is shortened.
【０００７】[0007]
【課題を解決するための手段】従来の秤量機を使用せず
以下の方法で重量値を算出する。起重機等にマイクロコ
ンピュータ等を搭載し捲上げ電動機の消費電力（ＫＷ）
及び捲上げ速度（ｍ／ｓ）等を測定するメータを設置し
マイクロコンピュータ等にその値を入力する。A weight value is calculated by the following method without using a conventional weighing machine. Power consumption (KW) of the hoisting electric motor with a microcomputer mounted on the hoist
Also, a meter for measuring the winding speed (m / s) and the like is installed and the value is input to a microcomputer or the like.
【０００８】起重機等が重量物を捲上げ時に、捲上げ電
動機の機械的出力（ＫＷ）に捲上装置の効率を乗じたも
のと吊り荷重（Ｋｇ）の仕事率（ＫＷ）は等しいことを
利用し，数個の重量値の判明している標準荷重（Ｋｇ）
を捲上げ，その時の消費電力（ＫＷ）と捲上げ速度（ｍ
／ｓ）標準荷重（Ｋｇ）等から捲上げ電動機の機械的出
力（ＫＷ）及び仕事率（ＫＷ）を算出して，その機械的
出力（ＫＷ）と仕事率（ＫＷ）から捲上装置の効率ηを
マイクロコンピュータ等で算出する。When a hoist or the like hoists a heavy load, it is used that the power (KW) of the lifting load (Kg) is equal to the product of the mechanical output (KW) of the hoisting motor and the efficiency of the hoisting device. However, standard load (Kg) for which several weight values are known
The power consumption (KW) and the winding speed (m)
/ S) The mechanical output (KW) and power (KW) of the hoisting motor are calculated from the standard load (Kg), etc., and the efficiency of the hoisting device is calculated from the mechanical output (KW) and power (KW). η is calculated by a microcomputer or the like.
【０００９】捲上装置の効率が求められると今度は製品
又は半製品等の重量物を捲上げて，その時の消費電力
（ＫＷ）及び捲上げ速度（ｍ／ｓ）等をマイクロコンピ
ュータ等に入力する。マイクロコンピュータ等で捲上げ
電動機の消費電力（ＫＷ）等から機械的出力（ＫＷ）を
算出し，これに効率を乗じて仕事率（ＫＷ）を算出す
る。次に仕事率（ＫＷ）と捲上げ度（ｍ／ｓ）等から重
量物の重量値（Ｋｇ）を算出する。つまり重量物を起重
機等で捲上げただけで重量値（Ｋｇ）を測定する。When the efficiency of the hoisting device is required, a heavy product such as a product or a semi-finished product is hoisted, and the power consumption (KW) and the hoisting speed (m / s) at that time are input to a microcomputer or the like. To do. A mechanical output (KW) is calculated from the power consumption (KW) of the hoisting motor with a microcomputer or the like, and this is multiplied by the efficiency to calculate the work rate (KW). Next, the weight value (Kg) of the heavy object is calculated from the work rate (KW) and the winding degree (m / s). That is, the weight value (Kg) is measured simply by hoisting the heavy object with a hoist or the like.
【００１０】[0010]
【作用】作業初め又は定期的に既知の重量値の標準荷重
（吊り荷の最大、中間、最小の３種類程度）を捲上げて
その時の消費電力（ＫＷ）及び捲上げ速度（ｍ／ｓ）等
をマイクロコンピュータ等に入力し，マイクロコンピュ
ータ等で捲上げ電動機の機械的出力（ＫＷ）を算出す
る，また捲上げ速度（ｍ／ｓ）と既知の重量（Ｋｇ）等
から仕事率（ＫＷ）を算出し仕事率（ＫＷ）から機械的
出力（ＫＷ）を除して捲上装置の効率ηを算出する。[Operation] At the beginning of work or at regular intervals, the standard load of known weight value (maximum, intermediate, minimum of three types of hanging load) is hoisted and the power consumption (KW) and hoisting speed (m / s) at that time are hoisted. Etc. to a microcomputer or the like, the mechanical output (KW) of the winding motor is calculated by the microcomputer or the like, and the work rate (KW) is calculated from the winding speed (m / s) and the known weight (Kg). Is calculated and the mechanical output (KW) is subtracted from the power (KW) to calculate the efficiency η of the hoisting device.
【００１１】生産ライン又は製品置き場等で製品又は半
製品等の重量物を起重機等で捲上げて消費電力（ＫＷ）
及び捲上げ速度（ｍ／ｓ）等をマイクロコンピュータ等
に入力する。マイクロコンピュータ等で消費電力（Ｋ
Ｗ）等から機械的出力（ＫＷ）を算出し，この機械的出
力（ＫＷ）に前項で算出した効率を乗じて仕事率（Ｋ
Ｗ）を算出し，仕事率（ＫＷ）と捲上げ速度（ｍ／ｓ）
等から製品又は半製品等の重量物の重量値（Ｋｇ）を算
出する。Electric power consumption (KW) by hoisting a heavy product such as a product or a semi-finished product on a production line or a product storage space with a hoist or the like.
Also, the winding speed (m / s) and the like are input to a microcomputer or the like. Power consumption (K
W) and the like to calculate the mechanical output (KW), and multiply the mechanical output (KW) by the efficiency calculated in the previous section to calculate the work rate (KW).
W) is calculated, and the power (KW) and the winding speed (m / s)
Etc. to calculate the weight value (Kg) of a heavy product such as a product or a semi-finished product.
【００１２】マイクロコンピュータ等は起重機等のオペ
レータに算出した重量値を表示し，起重機等のオペレー
タは重量値を知ることにより起重機等の運転を安全に行
う。The microcomputer or the like displays the calculated weight value to the operator of the hoist or the like, and the operator of the hoist or the like operates the hoist or the like safely by knowing the weight value.
【００１３】重量物を測定する場合は生産管理用計算機
に重量値（Ｋｇ）を送信する。既知の重量値である重量
物の捲上げる場合は既知の重量値（Ｋｇ）と算出した重
量値（Ｋｇ）と比較し許容範囲外の重量差ならば，目的
の重量物ではないこと知らせる。When measuring a heavy object, the weight value (Kg) is transmitted to the production control computer. In the case of winding a heavy object having a known weight value, the known weight value (Kg) is compared with the calculated weight value (Kg), and if the weight difference is outside the allowable range, it is notified that it is not the intended heavy object.
【００１４】[0014]
【実施例１】捲上げ電動機１が誘導電動機の場合，捲上
げ電動機１の固定子巻線抵抗ｒ１及び漏洩りアクタンス
ｘ１，励磁電流Ｉ０（Ａ）を測定する。そして図−１，
２に示すように起重機等５にマイクロコンピュータ等８
を搭載し捲上げ電動機１の消費電力計（ＫＷ）９，電圧
計（Ｖ）１０，電流計（Ａ）１１，を設置し，また捲上
げ電動機１の回転軸に速度メータ２を設置しマイクロコ
ンピュータ等８に入力する。[Embodiment 1] When the winding motor 1 is an induction motor, the stator winding resistance r 1, the leakage actance x 1 , and the exciting current I 0 (A) of the winding motor 1 are measured. And Figure-1,
As shown in 2, a hoist 5 and the like 8 and a microcomputer 8 and the like
Is equipped with a power consumption meter (KW) 9, a voltmeter (V) 10, and an ammeter (A) 11 of the hoisting motor 1, and a speed meter 2 is installed on the rotary shaft of the hoisting motor 1. Input to computer 8 etc.
【００１５】起重機等５で既知の重量物である標準荷重
６を吊り上げる，一定の高さに吊り上げた時にその時の
捲上げ電動機１の消費電力計つまり１次入力Ｐ（ＫＷ）
９，１次電圧計Ｖ１（Ｖ）１０，１次電流計Ｉ１（Ａ）
１１及び捲上げ速度（ｍ／ｓ）２をマイクロコンピュー
タ等８に入力する。A standard load 6 which is a known heavy object is hoisted by a hoist 5 or the like, and when hoisting to a constant height, a power consumption meter of the hoisting motor 1 at that time, that is, a primary input P (KW)
9, primary voltmeter V 1 (V) 10, primary ammeter I 1 (A)
11 and the winding speed (m / s) 2 are input to the microcomputer 8 or the like.
【００１６】マイクロコンピュータ等で１次入力Ｐ（Ｋ
Ｗ）から１次銅損ｍ１Ｉ１ ２ｒ１及び１次鉄損Ｐｉ＝ｍ
１Ｖ１′Ｉｗを引いて２次入力Ｐ２（ＫＷ）を算出す
る。（このときｍ１は１次巻線の相数，Ｉ１は１次電流
（Ａ），Ｖ１′（Ｖ）は１次誘起電力から１８０度位相
が進んだものであり１次電圧Ｖ１（Ｖ）から固定子巻線
抵抗ｒ１及び漏洩りアクタンスｘ１による電圧降下分を
引いたものである。Ｉｗは鉄損電流（Ａ）であり励磁電
流Ｉ０（Ａ）の有効分である）A primary input P (K
W) to primary copper loss m 1 I 1 2 r 1 and primary iron loss Pi = m
The secondary input P 2 (KW) is calculated by subtracting 1 V 1 ′ Iw. (At this time, m 1 is the number of phases of the primary winding, I 1 is the primary current (A), and V 1 ′ (V) is the phase advanced by 180 degrees from the primary electromotive force, and the primary voltage V 1 (V) is obtained by subtracting the voltage drop due to the stator winding resistance r 1 and the leakage actance x 1. Iw is the iron loss current (A) and the effective part of the exciting current I 0 (A). )
【００１７】マイクロコンピュータ等で入力した速度ｎ
（ｍ／ｓ）から同期速度ｎｓ（ｍ／ｓ）との差（ｎｓ−
ｎ）とｎｓの比つまり滑りＳを算出し，２次入力Ｐ
２（ＫＷ）に滑りＳを乗ずると２次銅損Ｐ２Ｃ（ＫＷ）
となり，２次入力Ｐ２（ＫＷ）から２次銅損Ｐ２Ｃ（Ｋ
Ｗ）を引いたものが機械的出力（捲上げ電動機の無負荷
損を含む）Ｐ０（ＫＷ）となる。Speed n input by a microcomputer or the like
(N s −) from (m / s) to the synchronous speed n s (m / s)
n) and ns , that is, the slip S is calculated, and the secondary input P
When the slip S is multiplied by 2 (KW), the secondary copper loss P 2C (KW)
From the secondary input P 2 (KW) to the secondary copper loss P 2C (K
The value obtained by subtracting W) is the mechanical output (including the no-load loss of the hoisting motor) P 0 (KW).
【００１８】起重機等で捲上げた既知重量値の標準荷重
（Ｋｇ）６に吊り具の重量（Ｋｇ）４を加えたものに，
機械的出力（ＫＷ）を算出した時の速度ｎ（ｍ／ｓ）と
重力の加速度ｇを乗じて吊り荷の仕事率（ＫＷ）を算出
する。A standard load (Kg) 6 of a known weight value wound by a hoist or the like, to which the weight (Kg) 4 of the lifting device is added,
The work rate (KW) of the suspended load is calculated by multiplying the speed n (m / s) at the time of calculating the mechanical output (KW) and the acceleration g of gravity.
【００１９】仕事率（ＫＷ）から機械的出力ＰＯ（Ｋ
Ｗ）を除して捲上装置３及び捲上げ電動機１の効率ηを
算出する。標準荷重を数個準備し１次入力Ｐ（ＫＷ）と
捲上装置３の効率ηとの関係式を算出する。ここまでの
作業は捲上装置３の効率が変化していないか必要に応じ
て定期的に行う。From the power (KW) to the mechanical output P O (K
W) is removed to calculate the efficiency η of the hoisting device 3 and the hoisting motor 1. Several standard loads are prepared, and the relational expression between the primary input P (KW) and the efficiency η of the hoisting device 3 is calculated. The work up to this point is periodically performed as necessary to see if the efficiency of the hoisting device 3 has changed.
【００２０】捲上装置及び捲上げ電動機の効率ηが決定
されたら今度は測定する重量物の荷重を一定の高さに捲
上げ，その時の１次入力Ｐ１（ＫＷ），１次電圧計
（Ｖ），１次電流計（Ａ）及び捲上げ速度ｎ（ｍ／ｓ）
をマイクロコンピュータ等に入力する。マイクロコンピ
ュータ等で１次入力Ｐ１（ＫＷ）から１次銅損ｍ１Ｉ１
２ｒ１及び１次鉄損Ｐｉ＝ｍ１Ｖ１’Ｉｗを引いて２次
入力Ｐ２（ＫＷ）を算出する。そしてマイクロコンピュ
ータ等で入力した速度ｎ（ｍ／ｓ）から同期速度ｎ
ｓ（ｍ／ｓ）との差（ｎｓ−ｎ）とｎｓの比，滑りＳを
算出し，２次入力Ｐ２（ＫＷ）に滑りＳを乗ずると２次
銅損Ｐ２Ｃ（ＫＷ）となり，２次入力Ｐ２（ＫＷ）から
２次銅損Ｐ２Ｃ（ＫＷ）を引いたものが測定する重量物
の機械的出力Ｐ０（ＫＷ）となる。When the efficiency η of the hoisting device and the hoisting motor is determined, the load of the heavy object to be measured is hoisted to a constant height, and the primary input P 1 (KW) and the primary voltmeter ( V), primary ammeter (A) and winding speed n (m / s)
Is input to a microcomputer or the like. From a primary input P 1 (KW) to a primary copper loss m 1 I 1 with a microcomputer or the like
The secondary input P 2 (KW) is calculated by subtracting 2 r 1 and the primary iron loss Pi = m 1 V 1 ′ Iw. Then, from the speed n (m / s) input by the microcomputer etc., the synchronous speed n
s (m / s) and the difference (n s -n) and n s ratio of, calculates the slip S, multiplied by S slippage in the secondary input P 2 (KW) the secondary copper loss P 2C (KW) Therefore, the secondary output P 2 (KW) minus the secondary copper loss P 2C (KW) is the mechanical output P 0 (KW) of the heavy object to be measured.
【００２１】測定する重量物（Ｋｇ）７を捲上げ時の機
械的出力Ｐ０（ＫＷ）に１次入力Ｐ（ＫＷ）に応じた捲
上装置３の効率ηを乗じて測定する重量物（Ｋｇ）７の
仕事率（ＫＷ）を算出する，さらにこの仕事率（ＫＷ）
に速度ｎ（ｍ／ｓ）と重力の加速度ｇを除すると捲上げ
荷重（Ｋｇ）となりこれから吊り具４の重量（Ｋｇ）を
引くと測定する重量物７の重量値（Ｋｇ）が算出され
る。The heavy load (Kg) 7 to be measured is measured by multiplying the mechanical output P 0 (KW) at the time of winding by the efficiency η of the hoisting device 3 according to the primary input P (KW) ( Kg) The power (KW) of 7 is calculated, and this power (KW)
When the velocity n (m / s) and the acceleration g of gravity are divided into a hoisting load (Kg), the weight value (Kg) of the heavy object 7 to be measured is calculated by subtracting the weight (Kg) of the lifting device 4 from this. .
【００２２】[0022]
【実施例２】本実施例は誘導電動機の円線図を利用して
機械的出力を求める場合のものであり，１例としてハイ
ランド円線図（化学式等を記載した書類を参照）につい
て述べる。起重機等に搭載したマイクロコンピュータ等
に予め捲上げ電動機の円線図を作成し記憶させる。（円
線図の描き方については省略する）[Embodiment 2] This embodiment is for obtaining a mechanical output using a circular diagram of an induction motor, and as an example, a Highland circular diagram (see documents describing chemical formulas, etc.) will be described. . A circular diagram of the hoisting motor is created and stored in advance in a microcomputer or the like mounted on the hoist or the like. (How to draw the circle diagram is omitted)
【００２３】起重機等５で既知の重量物である標準荷重
（Ｋｇ）６を一定の高さに吊り上げ，その時の捲上げ電
動機１の１次入力Ｐ（ＫＷ）９，１次電圧計Ｖ１（Ｖ）
１０，１次電流計Ｉ１（Ａ）１１及び捲上げ速度（ｍ／
ｓ）２をマイクロコンピュータ等８に入力する。円線 次に換算した２次電流となる。A standard load (Kg) 6, which is a known heavy load, is hoisted by a hoist 5 and the like, and the primary input P (KW) 9 of the hoisting electric motor 1 at that time and a primary voltmeter V 1 ( V)
10, primary ammeter I 1 (A) 11 and winding speed (m /
s) 2 is input to the microcomputer 8 or the like. Circle line Then, the converted secondary current is obtained.
【００２４】 無負荷損を表わす，また点Ｓは静止した電動機に定格電
圧を加えた場合に相当し， [0024] It represents no-load loss, and point S corresponds to the case where a rated voltage is applied to a stationary motor,
【００２５】起重機等５で捲上げた既知重量値の標準荷
重（Ｋｇ）６に吊り具の重量（Ｋｇ）４を加えたものに
マイクロコンピュータ等８で入力した速度ｎ（ｍ／ｓ）
２と重力の加速度ｇを乗じて仕事率（ＫＷ）を算出す
る。A speed n (m / s) input by a microcomputer 8 to a standard load (Kg) 6 of a known weight value hoisted by a hoist 5 and a weight (Kg) 4 of a lifting tool added thereto.
The power (KW) is calculated by multiplying 2 by the acceleration g of gravity.
【００２６】仕事率（ＫＷ）から機械的出力Ｐ０（Ｋ
Ｗ）を除して捲上装置３の効率ηを算出する。標準荷重
６を数個準備し１次入力Ｐ（ＫＷ）と捲上装置３の効率
ηとの関係式を算出する。ここまでの作業は捲上装置３
の効率が変化していないか必要に応じて定期的に行う。From the power (KW) to the mechanical output P 0 (K
The efficiency η of the hoisting device 3 is calculated by dividing W). Several standard loads 6 are prepared, and the relational expression between the primary input P (KW) and the efficiency η of the hoisting device 3 is calculated. Up to this point, the hoisting device 3
Check if the efficiency of has changed, if necessary.
【００２７】捲上装置の効率が決定されたら今度は測定
する重量物の荷重を一定の高さに捲上げ，その時の１次
入力Ｐ（ＫＷ），１次電圧計（Ｖ），１次電流計（Ａ）
及び捲上げ速度ｎ（ｍ／ｓ）をマイクロコンピュータ等
に入力する。マイクロコンピュータ等で標準荷重（Ｋ
ｇ）を吊り上げた時の手順で機械的出力Ｐ０（ＫＷ）を
算出する。When the efficiency of the hoisting device is determined, the load of the heavy object to be measured is hoisted to a constant height, and the primary input P (KW), the primary voltmeter (V), and the primary current at that time. Total (A)
Also, the winding speed n (m / s) is input to a microcomputer or the like. Standard load (K
The mechanical output P 0 (KW) is calculated according to the procedure when g) is lifted.
【００２８】測定する重量物（Ｋｇ）７を捲上げ時の機
械的出力Ｐ０（ＫＷ）に１次入力Ｐ（ＫＷ）に応じた捲
上装置３の効率ηを乗じて測定する重量物（Ｋｇ）７の
仕事率（ＫＷ）を算出する，さらにこの仕事率（ＫＷ）
に速度ｎ（ｍ／ｓ）２と重力の加速度ｇを除すると捲上
げ荷重（Ｋｇ）となりこれから吊り具４の重量（Ｋｇ）
をひくと測定する重量物７の重量値（Ｋｇ）が算出され
る。The weight (Kg) 7 to be measured is measured by multiplying the mechanical output P 0 (KW) at the time of winding by the efficiency η of the hoisting device 3 according to the primary input P (KW) ( Kg) The power (KW) of 7 is calculated, and this power (KW)
When the speed n (m / s) 2 and the acceleration g of gravity are divided by, the hoisting load (Kg) is obtained, from which the weight (Kg) of the hanger 4 is obtained.
The weight value (Kg) of the heavy object 7 to be measured is calculated.
【００２９】[0029]
【実施例３】捲上げ電動機１が直流電動機の場合，捲上
げ電動機１の分巻界磁巻線抵抗Ｒｆ，直巻界磁巻線抵抗
ｒｆ及び電機子抵抗ｒａを測定する，そして起重機等に
マイクロコンピュータ等を搭載し電圧計１０，電流計１
１，１２及び捲上げ電動機の回転軸に速度メータ２を設
置しマイクロコンピュータ等８に１次電圧Ｖ（Ｖ）１
０，電機子電流Ｉａ（Ａ）１１，分巻界磁電流ｉｆ
（Ａ）１２及び捲上げ速度ｎ（ｍ／ｓ）２を入力する。Third Embodiment When the hoisting motor 1 is a DC motor, the shunt winding field winding resistance Rf, the series winding field winding resistance rf, and the armature resistance ra of the hoisting motor 1 are measured, and the hoisting machine or the like is used. A voltmeter 10 and an ammeter 1 equipped with a microcomputer
1, 12 and a speed meter 2 is installed on the rotary shaft of the hoisting motor, and a primary voltage V (V) 1 is applied to a microcomputer 8 or the like.
0, armature current Ia (A) 11, shunt field current if
(A) 12 and winding speed n (m / s) 2 are input.
【００３０】起重機等５で既知の重量物である標準荷重
（Ｋｇ）６を吊り上げる，捲上げ速度が一定になった時
に捲上げ電動機１の１次電圧Ｖ（Ｖ）１０，電機子電流
Ｉａ（Ａ）１１，分巻界磁電流ｉｆ（Ａ）１２及び捲上
げ速度ｎ（ｍ／ｓ）２をマイクロコンピュータ等８に入
力する。A standard load (Kg) 6, which is a known heavy object, is hoisted by a hoist 5 or the like. When the hoisting speed becomes constant, the primary voltage V (V) 10 of the hoisting motor 1 and the armature current Ia ( A) 11, the field winding current if (A) 12 and the winding speed n (m / s) 2 are input to the microcomputer 8 or the like.
【００３１】マイクロコンピュータ等で分巻電動機の場
合は１次電圧Ｖ（Ｖ）に電機子電流Ｉａ（Ａ）と分巻界
磁電流ｉｆ（Ａ）を加えたものを乗じて１次入力Ｐ（Ｋ
Ｗ）を算出する，そして１次入力Ｐ（ＫＷ）から電機子
抵抗による損失Ｉａ２ｒａ（ＫＷ）及び分巻界磁巻線抵
抗による損失ｉｆ２Ｒｆ（ＫＷ）をひき機械的出力Ｐ０
（ＫＷ）を算出する。次に直巻電動機の場合は１次電圧
Ｖ（Ｖ）に電機子電流Ｉａを乗じて１次入力Ｐ（ＫＷ）
を算出する，そして１次入力Ｐ（ＫＷ）から電機子抵抗
による損失Ｉａ２ｒａ（ＫＷ）及び直巻界磁巻線抵抗に
よる損失Ｉａ２ｒｆ（ＫＷ）をひき機械的出力Ｐ０（Ｋ
Ｗ）を算出する。次に複巻電動機の場合は１次電圧Ｖ
（Ｖ）に電機子電流Ｉａ（Ａ）分巻界磁電流ｉｆ（Ａ）
を加算したものを乗じて１次入力Ｐ（ＫＷ）を算出す
る，そして１次入力Ｐ（ＫＷ）から電機子抵抗による損
失Ｉａ２ｒａ（ＫＷ），直巻界磁巻線抵抗による損失Ｉ
ａ２ｒｆ（ＫＷ）及び分巻界磁巻線抵抗による損失ｉｆ
２Ｒｆ（ＫＷ）をひき機械的出力Ｐ０（ＫＷ）を算出す
る。In the case of a shunt winding motor such as a microcomputer, the primary input V (V) is multiplied by the sum of the armature current Ia (A) and the shunt winding field current if (A) to obtain the primary input P ( K
W) is calculated, and the loss Ia 2 ra (KW) due to the armature resistance and the loss if 2 Rf (KW) due to the shunt field winding resistance are subtracted from the primary input P (KW) to obtain the mechanical output P 0.
Calculate (KW). Next, in the case of a series winding motor, the primary input V (V) is multiplied by the armature current Ia to obtain the primary input P (KW).
And the loss Ia 2 ra (KW) due to the armature resistance and the loss Ia 2 rf (KW) due to the field winding resistance from the primary input P (KW) are subtracted from the mechanical output P 0 (K
W) is calculated. Next, in the case of a compound winding motor, the primary voltage V
(V) armature current Ia (A) divided field current if (A)
Then, the primary input P (KW) is calculated by multiplying the sum of the above, and the loss Ia 2 ra (KW) due to the armature resistance and the loss I due to the series winding field winding resistance are calculated from the primary input P (KW).
a 2 rf (KW) and loss if due to shunt field winding resistance
2 Rf (KW) is subtracted to calculate the mechanical output P 0 (KW).
【００３２】起重機等で捲上げた既知重量値の標準荷重
（Ｋｇ）６と吊り具の重量（Ｋｇ）４にマイクロコンピ
ュータ等で入力した速度ｎ（ｍ／ｓ）と重力の加速度ｇ
を乗じて仕事率（ＫＷ）を算出する。A standard load (Kg) 6 of a known weight value hoisted by a hoist and a weight (Kg) 4 of a lifting device, a speed n (m / s) input by a microcomputer and an acceleration g of gravity.
The power factor (KW) is calculated by multiplying by.
【００３３】仕事率（ＫＷ）から機械的出力Ｐ０（Ｋ
Ｗ）を除して捲上装置３及び捲上げ電動機１の効率ηを
算出する。標準荷重６を数個準備し１次入力Ｐ（ＫＷ）
と捲上装置３及び捲上げ電動機１の効率ηとの関係式を
算出する。ここまでの作業は捲上装置３及び捲上げ電動
機１の効率ηが変化していないか必要に応じて定期的に
行う。From the power (KW) to the mechanical output P 0 (K
W) is removed to calculate the efficiency η of the hoisting device 3 and the hoisting motor 1. Prepare several standard loads 6 and use primary input P (KW)
And the relational expression between the efficiency η of the hoisting device 3 and the hoisting motor 1 is calculated. The work up to this point is carried out periodically if necessary if the efficiency η of the hoisting device 3 and the hoisting motor 1 has not changed.
【００３４】次に測定する重量物７の荷重を捲上げて捲
上げ速度が一定になった時にその時の，１次電圧Ｖ
（Ｖ），電機子電流Ｉａ（Ａ），分巻界磁電流ｉｆ
（Ａ）及び捲上げ速度ｎ（ｍ／ｓ）をマイクロコンピュ
ータ等に入力し，既知の重量物である標準荷重を吊り上
げた時と同じ手順で測定する重量物を捲上げ時の機械的
出力Ｐ０（ＫＷ）を算出する。Next, when the load of the heavy object 7 to be measured is hoisted and the hoisting speed becomes constant, the primary voltage V at that time is
(V), armature current Ia (A), shunt field current if
(A) and hoisting speed n (m / s) are input to a microcomputer or the like, and the mechanical output P at the time of hoisting is measured by the same procedure as when a standard load, which is a known heavy object, is suspended. 0 (KW) is calculated.
【００３５】測定する重量物（Ｋｇ）７を捲上げ時の機
械的出力Ｐ０（ＫＷ）に１次入力Ｐ（ＸＷ）に応じた捲
上装置の効率ηを乗じて測定する吊り荷重（Ｋｇ）の仕
事率（ＫＷ）を算出する，さらにこの仕事率（ＫＷ）に
速度ｎ（ｍ／ｓ）と重力の加速度ｇを除すると吊り荷重
（Ｋｇ）となりこれから吊り具の重量（Ｋｇ）４をひく
と測定する重量物の重量値（Ｋｇ）７が算出される。Suspending load (Kg) measured by multiplying the mechanical output P 0 (KW) at the time of hoisting a heavy object (Kg) 7 to be measured by the efficiency η of the hoisting device according to the primary input P (XW). ) Is calculated, and when the power (KW) is divided by the speed n (m / s) and the acceleration g of gravity, the suspension load (Kg) is obtained. The weight value (Kg) 7 of the heavy object to be measured is calculated.
【００３６】[0036]
【発明の効果】従来のロードセル等を使用した秤量機は
高価であり且つ設置スペースが必要となる，本発明によ
ると重量の測定センサーに起重機等の捲上電動機を利用
するので秤量機が安価に制作でき設置スペースも必要な
い。EFFECTS OF THE INVENTION A weighing machine using a conventional load cell or the like is expensive and requires an installation space. According to the present invention, since a hoisting electric motor such as a hoist is used as a weight measuring sensor, the weighing machine is inexpensive. It can be produced and requires no installation space.
【００３７】重量物を測定する場合は，起重機等で重量
物を秤量台に乗せて秤量する工程が必要である。本発明
によると起重機等で重量物を捲上げるだけで秤量が可能
となり秤量工程が短縮できる。When measuring a heavy object, a step of placing the heavy object on a weighing platform with a hoist or the like and weighing it is necessary. According to the present invention, it is possible to perform weighing by simply hoisting a heavy object with a hoist or the like, and the weighing process can be shortened.
【００３８】起重機等で重量物を捲上げる時にクレーン
オペレータに重量物の重量値を知らせることにより起重
機等の安全運転に貢献できる。By notifying the crane operator of the weight value of the heavy object when hoisting the heavy object with the hoist or the like, it is possible to contribute to safe operation of the hoist or the like.
【図−１】起重機の概略図であり捲上げ電動機軸に速度
計を接続して捲上げ速度を測定するまた秤量値の校正用
に３種類の重量物を準備している。FIG. 1 is a schematic diagram of a hoist, in which a speedometer is connected to a hoisting motor shaft to measure a hoisting speed, and three kinds of heavy objects are prepared for calibration of a weighing value.
【図−２】簡略なシステム構成図であり起重機等５にマ
イクロコンピュータ等８を搭載し，捲上げ電動機１の電
力Ｐ（ＫＷ）９，１次電圧計Ｖ１（Ｖ）１０，１次電流
計Ｉ１（Ａ）１１，１２及び捲上げ速度ｎ（ｍ／ｓ）２
をマイクロコンピュータ等８に入力しクレーンオペレー
タに測定した重量値を表示装置１３に出力する図であ
る。[Fig. 2] Fig. 2 is a simplified system configuration diagram in which a microcomputer 8 is mounted on a hoist 5 and the like, and electric power P (KW) 9 of the hoisting motor 1, primary voltmeter V 1 (V) 10, primary current Total I 1 (A) 11, 12 and winding speed n (m / s) 2
Is input to the microcomputer 8 and the weight value measured by the crane operator is output to the display device 13.
１ 捲上げ電動機 ２ 捲上げ速度計 ３ 捲上げ装置 ４ 捲上げ吊り具 ５ 起重機 ６ 標準荷重 ７ 重量物 ８ マイクロコンピュータ等 ９ 消費電力計 １０ １次電圧計 １１ １次電流計 １２ １次電流計 １３ 入力装置 １４ 表示装置 1 hoisting electric motor 2 hoisting speed meter 3 hoisting device 4 hoisting hoist 5 hoist 6 standard load 7 heavy object 8 microcomputer etc. 9 power consumption meter 10 primary voltmeter 11 primary ammeter 12 primary ammeter 13 Input device 14 Display device
Claims (2)
動機の機械的出力（ＫＷ）に捲上装置の効率を乗じたも
のと吊り荷重（Ｋｇ）の仕事率（ＫＷ）は等しいことを
利用し，重量値の判明している標準荷重（Ｋｇ）を捲上
げ，その時の捲上げ電動機の消費電力（ＫＷ）等と捲上
げ速度（ｍ／ｓ）及び標準荷重（Ｋｇ）等から捲上げ電
動機の機械的出力（ＫＷ），仕事率（ＫＷ）及び捲上装
置の効率をマイクロコンピュータ等で算出する。1. When a hoist or the like hoists a hoisting load, the work power (KW) of the hoisting load (Kg) is equal to the product obtained by multiplying the mechanical output (KW) of the hoisting motor by the efficiency of the hoisting device. The standard load (Kg) of which the weight value is known is used to wind, and at that time the winding electric power consumption (KW), the winding speed (m / s), the standard load (Kg), etc. The mechanical output (KW) of the hoisting motor, the power (KW), and the efficiency of the hoisting device are calculated by a microcomputer or the like.
動機の機械的出力（ＫＷ）に捲上装置の効率を乗じたも
のと吊り荷重（Ｋｇ）の仕事率（ＫＷ）は等しいことを
利用し，測定する重量物を捲上げ，その時の捲上げ電動
機の清費電力（ＫＷ）等と捲上げ速度（ｍ／ｓ）等から
捲上げ電動機の機械的出力（ＫＷ）をマイクロコンピュ
ータ等で算出し，その機械的出力（ＫＷ）に請求項１で
算出した捲上装置の効率を乗じてその時の吊り荷重（Ｋ
ｇ）の仕事率（ＫＷ）とし，この仕事率（ＫＷ）と捲上
げ速度（ｍ／ｓ）等から起重機等で重量物を捲上げ中に
吊り荷の重量値（Ｋｇ）を算出する。2. When a hoist or the like hoists a hoisting load, the work power (KW) of the hoisting load (Kg) is equal to the product obtained by multiplying the mechanical output (KW) of the hoisting motor by the efficiency of the hoisting device. Winding up a heavy object to be measured by using, and the mechanical output (KW) of the hoisting electric motor (KW) and the winding power (KW) of the hoisting electric motor at that time from the winding power (KW) and the like. And the mechanical output (KW) is multiplied by the efficiency of the hoisting device calculated in claim 1, and the suspension load (K
The work power (KW) of g) is used, and the weight value (Kg) of the suspended load is calculated from the work power (KW) and the hoisting speed (m / s) while the heavy object is being hoisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12555995A JPH08285669A (en) | 1995-04-15 | 1995-04-15 | Method for measuring weight value of hanging load from mechanism output of hoisting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12555995A JPH08285669A (en) | 1995-04-15 | 1995-04-15 | Method for measuring weight value of hanging load from mechanism output of hoisting motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08285669A true JPH08285669A (en) | 1996-11-01 |
Family
ID=14913202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12555995A Pending JPH08285669A (en) | 1995-04-15 | 1995-04-15 | Method for measuring weight value of hanging load from mechanism output of hoisting motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08285669A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589668A (en) * | 2012-03-05 | 2012-07-18 | 深圳市测力佳控制技术有限公司 | System and method by utilizing power consumption of motor to measure mass of heavy objects hoisted by motor |
| KR101867735B1 (en) * | 2016-12-23 | 2018-06-14 | 주식회사 포스코 | Weighing Technology Using the Electronic Signal of Motor |
| CN109238417A (en) * | 2018-06-26 | 2019-01-18 | 北京艾瑞思机器人技术有限公司 | Determine the method and device of the quality of storage the loaded cargo of robot |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5675380A (en) * | 1979-11-15 | 1981-06-22 | Nippon Kokan Kk | Measuring device for efficiency of operation energy of overhead crane |
-
1995
- 1995-04-15 JP JP12555995A patent/JPH08285669A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5675380A (en) * | 1979-11-15 | 1981-06-22 | Nippon Kokan Kk | Measuring device for efficiency of operation energy of overhead crane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589668A (en) * | 2012-03-05 | 2012-07-18 | 深圳市测力佳控制技术有限公司 | System and method by utilizing power consumption of motor to measure mass of heavy objects hoisted by motor |
| KR101867735B1 (en) * | 2016-12-23 | 2018-06-14 | 주식회사 포스코 | Weighing Technology Using the Electronic Signal of Motor |
| CN109238417A (en) * | 2018-06-26 | 2019-01-18 | 北京艾瑞思机器人技术有限公司 | Determine the method and device of the quality of storage the loaded cargo of robot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4205795B2 (en) | Automatic calibration of field-directed elevator motor drive using static motor measurement | |
| CN108750946B (en) | A control method for crane load identification, measurement and regulation | |
| US5859373A (en) | Apparatus and process for determining the instantaneous and continuous loads on a lifting mechanism | |
| JP6769785B2 (en) | How to measure the lifting load of a crane | |
| EP1184329B1 (en) | Method and arrangement for measuring load of hoisting apparatus | |
| CN113148791B (en) | Rapid calculation method for elevator balance coefficient | |
| JPH07215622A (en) | Elevator control mechanism | |
| KR960003012B1 (en) | Adjusting device of elevator | |
| EP3974367B1 (en) | Method of calibraring a load weighing device of an elevator system and elevator system | |
| JPH09315760A (en) | Balance of weight pulled type | |
| CN103950836A (en) | Electronic scale for travelling crane | |
| Mokin et al. | Synthesis of mathematical models for one class of electromechanical systems with variable parameters | |
| KR101015054B1 (en) | Elevator unbalanced load and maximum load measurement method and device | |
| CN203877769U (en) | Travelling electronic scale | |
| CN107458940A (en) | A kind of method, apparatus and frequency converter for determining balance coefficient of elevator | |
| US5329468A (en) | Actual operating time indicator | |
| JPS595924A (en) | Weight measuring system for crane | |
| RU2780976C1 (en) | Dynamic method for monitoring the mass of the load of a hoisting machine | |
| CN208887827U (en) | Synchnorous gearless dragging machine braking-force detecting device | |
| Kosucki et al. | Verification of simplified model of inverter–motor stator system | |
| CN204666355U (en) | A kind of chain block performance parameter measurement mechanism | |
| JP2005306557A (en) | Adjustment device of elevator | |
| CN218754559U (en) | Explosion-proof type intelligence snatchs hoist | |
| JPH0534423A (en) | Method for calculating characteristic of linear induction motor | |
| JPS6037410B2 (en) | How to detect load on hoisting machine in crane etc. |