KR940009052A - Variable speed hoist - Google Patents

Variable speed hoist Download PDF

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Publication number
KR940009052A
KR940009052A KR1019930000342A KR930000342A KR940009052A KR 940009052 A KR940009052 A KR 940009052A KR 1019930000342 A KR1019930000342 A KR 1019930000342A KR 930000342 A KR930000342 A KR 930000342A KR 940009052 A KR940009052 A KR 940009052A
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KR
South Korea
Prior art keywords
frequency
speed
motor
amount
rotation speed
Prior art date
Application number
KR1019930000342A
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Korean (ko)
Other versions
KR970003820B1 (en
Inventor
요우지 나까무라
Original Assignee
기따오까 다까시
미쯔비시 덴끼 가부시끼가이샤
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.)
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Priority claimed from JP28689792A external-priority patent/JP3147199B2/en
Application filed by 기따오까 다까시, 미쯔비시 덴끼 가부시끼가이샤 filed Critical 기따오까 다까시
Publication of KR940009052A publication Critical patent/KR940009052A/en
Application granted granted Critical
Publication of KR970003820B1 publication Critical patent/KR970003820B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/485—Control devices automatic electrical
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

본 발명 임의의 시각에서 전동하역장치의 위치가 정확하게 제어되는 전동하역장치를 제공하기 위해, 감아올림전동기(12)의 속도를 검출하는 회전인코더(19)와 주파수명령 장치(20)를 갖고 주파수명령장치(20)로부터 인버터(11)로의 명령주파수를 감아올림전동기(12)의 목표회전속도(내지 목표 적산 회전량)와 검출회전속도(내지 검출 적산 회젼량)의 차이에 따라서 증감시키고 감아올림전동기(12)의 회전속도(내지 적산 회전량)를 목표에 일치시키게 한다.In order to provide an electric unloading device in which the position of the electric unloading device is precisely controlled at any time of the present invention, a frequency encoder having a rotation encoder 19 and a frequency command device 20 for detecting the speed of the take-up motor 12 is provided. The command frequency from the device 20 to the inverter 11 is rolled up and down depending on the difference between the target rotational speed (to target integrated rotational amount) and the detected rotational speed (to-detected integrated rotational amount) of the motor 12. The rotational speed (or integrated rotational amount) of (12) is made to match the target.

Description

속도가변식 감아올림장치Variable speed hoist

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 제1및 제2실시예에 관한 속도가변식 감아올림장치의 회로도,1 is a circuit diagram of a variable speed winding apparatus according to the first and second embodiments of the present invention;

제2도는 본 발명의 실시예에 관한 전동하역장치의 인버터 출력주파수 및 감아올리는 전동기회전속도의 변화를 도시하는 동작특성도,2 is an operating characteristic diagram showing a change in the inverter output frequency and the reeling motor rotational speed of the electric unloading device according to the embodiment of the present invention;

제3도는 본 발명에 관한 전동하역장치의 인버터출력주파수 및 감아올리는 전동기회전속도의 변화를 도시하는 동작특성도,3 is an operating characteristic diagram showing changes in the inverter output frequency and the reeling motor rotational speed of the electric unloading device according to the present invention;

제4도는 본 발명에 관한 전동하역 장치의 인버터출력주파수 및 감아내리는 전동기회전속도변화를 도시하는 동작 특성도.4 is an operating characteristic diagram showing changes in inverter output frequency and winding motor rotational speed of the electric unloading device according to the present invention.

Claims (8)

출력주파수를 변화시켜 전동하역 장치의 전동기의 속도를 제어하는 인버터와, 상기 전동기의 회전속도를 검출하는 회전속도검출수단과, 상기 회전속도검출수단의 출력에 의거하여 상기 인버터에 출력주파수를 명령하는 주파수명령 장치를 구비하며, 상기 주파수명령장치는 소정시간후에서의 상기 전동기의 검출회전속도와 미리 설정된 목표회전 속도가 동일해지도록 명령주파수를 증감시키는 속도가변식 감아올림장치.An inverter for controlling the speed of the motor of the electric unloading device by varying the output frequency, a rotation speed detection means for detecting the rotation speed of the motor, and instructing the output frequency to the inverter based on the output of the rotation speed detection means. And a frequency command device, wherein the frequency command device increases or decreases the command frequency so that the detected rotation speed of the motor and a predetermined target rotation speed become equal after a predetermined time. 출력주파수를 변화시켜 전동하역 장치의 전동기의 속도를 제어하는 인버터와, 상기 전동기의 회전속도를 검출하는 회전속도검출수단과, 상기 회전속도검출수단의 출력에 의거하여 상기 인버터에 출력주파수를 명령하는 주파수명령 장치를 구비하며, 상기 주파수명령장치는 상기 회전속도검출수단에 의해 검출된 회전속도를 적산 내지 적분하고 소정시간 내에 상기 전동기의 총회전량을 산출하며 각 시각에서의 상기 전동기의 검출총회전량이 미리 설정된 각 시각에서의 목표 총회전량과 동일해지도록 명령주파수를 증감시키는 속도가변식 감아올림장치.An inverter for controlling the speed of the motor of the electric unloading device by varying the output frequency, a rotation speed detection means for detecting the rotation speed of the motor, and instructing the output frequency to the inverter based on the output of the rotation speed detection means. And a frequency command device, wherein the frequency command device integrates or integrates the rotation speed detected by the rotation speed detection means, calculates the total rotation amount of the motor within a predetermined time, and detects the total rotation amount of the motor at each time. A variable speed winding device that increases or decreases the command frequency so as to be equal to the target total rotation amount at each preset time. 감아올림전동기를 인버터에 의해서 속도제어하는 감아올림장치에 있어서, 기본운전주파수와 보정운전주파수를 미리설정하고 기본운전주파수로 통상운전을 하고 감아올림전동기의 검출회전량과 미리정해진 목표회전량을 비교수단으로 비교하고 그 결과에 따라 상기 기본운전주파수로부터 상기 보정운전한것을 특징으로 하는 속도가변식 감아올림장치.In a hoisting device for controlling the hoisting motor by the inverter, the basic operation frequency and the correction operation frequency are set in advance, the normal operation is performed at the basic operation frequency, and the detected rotational amount of the hoisting motor is compared with a predetermined target rotational amount. And a means for compensating for the correction from the basic operating frequency according to the result. 제3항에 있어서, 기본운전주파수를 저속운전용과 고속운전용으로 별도로 설치한 것을 특징으로 하는 속도가변식 감아올림장치.4. The variable speed winding device according to claim 3, wherein the basic operating frequency is provided separately for the low speed operation and the high speed operation. 제4항에 있어서, 저속감아올림운전용의 보정운전주파수와 고속감아내림 운전용의 보정운전주파수를 같은 것으로 한 것을 특징으로 하는 속도가변식 감아올림장치.The variable speed winding apparatus according to claim 4, wherein the corrected operation frequency for the low speed reel operation and the corrected operation frequency for the high speed reel operation are the same. 제3항에 있어서, 검출회전량과 목표회전량의 누적치를 운전정지중에 리세트하고 운전개시와 동시에 적산을 시작하는 것을 특징으로 하는 속도가변식 감아올림장치.4. The variable speed winding apparatus according to claim 3, wherein the accumulated value of the detected rotation amount and the target rotation amount is reset during the operation stop, and integration is started at the same time as the operation starts. 제6항에 있어서, 운전지령을 없앤 후에 검출회전량이 목표회전량과 동일해졌을 때 브레이킹하게 지시하는 브레이크제어수단을 구비한 것을 특징으로 하는 속도가변식 감아올림장치.7. The variable speed hoist according to claim 6, further comprising brake control means for instructing to break when the detected rotation amount becomes equal to the target rotation amount after removing the operation command. 제1항에 있어서, 검출회전량과 목표회전량을 비교하고 그 차이가 미리 정한 양을 넣었을 경우에 즉시 운전을 정지하는 동시에 다중점매달기를 행하고 있는 다른 감아올림전동기의 운전도 정지시키기 위해 이상출력하는 이상판별수단을 설치한 것을 특징으로 하는 속도가변식 감아올림장치.The abnormal output according to claim 1, wherein the detected rotation amount and the target rotation amount are compared and an abnormal output is made to stop the operation immediately when the difference is a predetermined amount and to stop the operation of another take-up motor that is performing a multi-point suspension. Speed-variable reel device characterized in that the installation of an error determining means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930000342A 1992-10-01 1993-01-13 Electromotive cargo working device KR970003820B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28689792A JP3147199B2 (en) 1992-01-23 1992-10-01 Variable speed hoist for hanging
JP92-286897 1992-10-01

Publications (2)

Publication Number Publication Date
KR940009052A true KR940009052A (en) 1994-05-16
KR970003820B1 KR970003820B1 (en) 1997-03-22

Family

ID=17710419

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930000342A KR970003820B1 (en) 1992-10-01 1993-01-13 Electromotive cargo working device

Country Status (2)

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KR (1) KR970003820B1 (en)
TW (1) TW218376B (en)

Also Published As

Publication number Publication date
TW218376B (en) 1994-01-01
KR970003820B1 (en) 1997-03-22

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