JPS56164908A - Boom angle detector of crane - Google Patents

Boom angle detector of crane

Info

Publication number
JPS56164908A
JPS56164908A JP6854280A JP6854280A JPS56164908A JP S56164908 A JPS56164908 A JP S56164908A JP 6854280 A JP6854280 A JP 6854280A JP 6854280 A JP6854280 A JP 6854280A JP S56164908 A JPS56164908 A JP S56164908A
Authority
JP
Japan
Prior art keywords
boom
angle
respect
inclination
gear
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
Application number
JP6854280A
Other languages
Japanese (ja)
Other versions
JPS6253437B2 (en
Inventor
Miyuki Shimizu
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP6854280A priority Critical patent/JPS56164908A/en
Publication of JPS56164908A publication Critical patent/JPS56164908A/en
Publication of JPS6253437B2 publication Critical patent/JPS6253437B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)

Abstract

PURPOSE:To detect true boom angles always accurately by detecting the inclination of a swivel table with respect to the absolute horizon and the boom angles of a boom with respect to this swivel table, and adding these. CONSTITUTION:A beam 3 is mounted freely luffably to the supporting part 2a of a swivel table 2 by way of a foot pin 4, and a gear 10 is fixed to the pin 4. A gear 11 is meshed with the gear 10, and the rotating shaft of a boom angle detector is connected to the shaft of the gear 11. The boom anble detector detects the luffing angle alpha of the boom 3 with respect to the table 2, and outputs a boom angle signal Valpha. An inclinometer 15, which is disposed on the swiveling center 2a of the table 2, detects the angle beta of inclination of the table 2 with respect to the absolute horizontal plane and outputs an angle of inclination signal Vbeta. When these angles alpha, beta of inclination are added, the boom angle alpha0 of the boom 3 with respect to the absolute horizon is obtained. A detecting circuit addes the signals Valpha and Vbeta and outputs the corresponding signal Valpha0. This signal Valpha0 is the value proportional to the angle alpha0.
JP6854280A 1980-05-23 1980-05-23 Boom angle detector of crane Granted JPS56164908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6854280A JPS56164908A (en) 1980-05-23 1980-05-23 Boom angle detector of crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6854280A JPS56164908A (en) 1980-05-23 1980-05-23 Boom angle detector of crane

Publications (2)

Publication Number Publication Date
JPS56164908A true JPS56164908A (en) 1981-12-18
JPS6253437B2 JPS6253437B2 (en) 1987-11-10

Family

ID=13376733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6854280A Granted JPS56164908A (en) 1980-05-23 1980-05-23 Boom angle detector of crane

Country Status (1)

Country Link
JP (1) JPS56164908A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041405U (en) * 1990-04-18 1992-01-08
EA012858B1 (en) * 2008-02-18 2009-12-30 Закрытое Акционерное Общество "Критерий" Device for hoisting machinery boom tilt angle measurement
CN108408613A (en) * 2018-03-12 2018-08-17 徐州徐工随车起重机有限公司 A kind of protection of lorry-mounted crane transport vehicle all-position safety and remote diagnosis repair system
GB2576618A (en) * 2018-07-05 2020-02-26 Mhwirth As Position measuring method and system for use on a floating installation
CN111855173A (en) * 2020-07-10 2020-10-30 中国人民解放军火箭军工程大学 Hoisting mechanism amplitude variation performance testing device and method based on vibration sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517898Y2 (en) * 1988-04-08 1993-05-13

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4973110U (en) * 1972-10-11 1974-06-25
JPS49105305A (en) * 1973-02-14 1974-10-05
JPS5017963U (en) * 1973-06-11 1975-02-27
JPS5022054U (en) * 1973-06-23 1975-03-12
JPS53120065U (en) * 1977-03-01 1978-09-25

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4973110U (en) * 1972-10-11 1974-06-25
JPS49105305A (en) * 1973-02-14 1974-10-05
JPS5017963U (en) * 1973-06-11 1975-02-27
JPS5022054U (en) * 1973-06-23 1975-03-12
JPS53120065U (en) * 1977-03-01 1978-09-25

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041405U (en) * 1990-04-18 1992-01-08
EA012858B1 (en) * 2008-02-18 2009-12-30 Закрытое Акционерное Общество "Критерий" Device for hoisting machinery boom tilt angle measurement
CN108408613A (en) * 2018-03-12 2018-08-17 徐州徐工随车起重机有限公司 A kind of protection of lorry-mounted crane transport vehicle all-position safety and remote diagnosis repair system
GB2576618A (en) * 2018-07-05 2020-02-26 Mhwirth As Position measuring method and system for use on a floating installation
CN111855173A (en) * 2020-07-10 2020-10-30 中国人民解放军火箭军工程大学 Hoisting mechanism amplitude variation performance testing device and method based on vibration sensor
CN111855173B (en) * 2020-07-10 2022-03-25 中国人民解放军火箭军工程大学 Hoisting mechanism amplitude variation performance testing device and method based on vibration sensor

Also Published As

Publication number Publication date
JPS6253437B2 (en) 1987-11-10

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