DE2225974B2 - LOAD TORQUE LIMITING DEVICE - Google Patents

LOAD TORQUE LIMITING DEVICE

Info

Publication number
DE2225974B2
DE2225974B2 DE19722225974 DE2225974A DE2225974B2 DE 2225974 B2 DE2225974 B2 DE 2225974B2 DE 19722225974 DE19722225974 DE 19722225974 DE 2225974 A DE2225974 A DE 2225974A DE 2225974 B2 DE2225974 B2 DE 2225974B2
Authority
DE
Germany
Prior art keywords
load torque
limiting device
torque limiting
cheeks
frame
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
DE19722225974
Other languages
German (de)
Other versions
DE2225974C3 (en
DE2225974A1 (en
Inventor
Hubert; Schwarz Wilhelm Dr.-Ing.; 2940 Wilhelmshaven Pollog
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Priority to DE19722225974 priority Critical patent/DE2225974C3/en
Priority claimed from DE19722225974 external-priority patent/DE2225974C3/en
Priority to NL7306938A priority patent/NL7306938A/xx
Priority to IT2439173A priority patent/IT987793B/en
Priority to CH741373A priority patent/CH547752A/en
Priority to GB2512673A priority patent/GB1406337A/en
Publication of DE2225974A1 publication Critical patent/DE2225974A1/en
Publication of DE2225974B2 publication Critical patent/DE2225974B2/en
Application granted granted Critical
Publication of DE2225974C3 publication Critical patent/DE2225974C3/en
Expired 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
    • B66C23/905—Devices for indicating or limiting lifting moment electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Description

Saß8 eine Stelle (9) des Kmg^es M « mngsstückenSat 8 one point (9) of the Kmg ^ it M "mngsstücken

konstruktiv so ausgeleg ist, daß ^ 1^ bei I5 pig. 1 «igt
Istwertgeber angebrachter Kraft??°e' *™Lan. 12, 14, 15, 16,
konstantem zulässigem Lastmoment konstant bean h is designed in such a way that ^ 1 ^ at I5 pig. 1 igt
Actual value transmitter applied force ?? ° e '* ™ L on . 12, 14, 15, 16,
constant permissible load torque constant h

sprucht wird.is said.

12, 14, 15, 16,^12, 14, 15, 16, ^

waagerechter Lage mit J horizontal position with J

denjenigen AusladJJ*"
Ausleger-Te. e 14, H^ent those AusladJJ * "
Boom Te. e 14, H ^ ent

SSüen den Ausleger größtmöglichen Länge inSüen the boom largest possible length in

,^ 18 in Anordnung bei ergeben> wenn die , ^ 18 in arrangement at result> if the

m den vorhergehenden oder wenn sie aus ihm m the previous or if they made it

dnem in Höhenrichtung ^^
änderbaren Ausleger unter Anwendung eine
sebers für die jeweils vorhandenen, auf den Kran wirkenden Momente, eines Grenzwertgebers und eines Vergleichsgerätes, das dann wenn das auf den Kran wirkende Moment einen Grenzwert erreicht, e.nednem in height direction ^^
changeable boom using a
sebers for the respective existing moments acting on the crane, a limit value transmitter and a comparison device, which then when the moment acting on the crane reaches a limit value, e.ne

2525th

Bei der beschr.ebenen Konstru g ^^In the case of the flat construct g ^^

verschiedenen Aus fangen^« Möglichkeiten mit den ieiesKop ι . wide enes From start ^ "options with the ieiesKop ι.

«en Mg ν,,^η«^^^^^ betrachtUch unterschi^chen uas«En Mg ν ,, ^ η« ^^^^^ consider different uas

der Audadung dui^ to ^n^J^ «fflr der Auda dung dui ^ to ^ n ^ J ^ « fflr

denthe

^,2^„ Ueferl E„ergi, .„ den »wie . — O——^, 2 ^ " Ueferl E" erg i,. "Den" like. - O——

einstellbaren, konstanten Grenzwert für das zulässige Kippmoment an ein Vergleichsgerät 22 abgibt Diesem werden die Istwerte aus dem Istwertgeber 19 über einen Verstärker 23 zugebrachtadjustable, constant limit value for the permissible overturning moment to a comparison device 22 emits this the actual values are brought from the actual value transmitter 19 via an amplifier 23

Wenn ein Istwert fast bis zu dem Grenzwert ansteigt löst das Vergleichsgerät 22 in einem Gerät 24 ein einstellbares Vorwarnsignal aus. Wenn der Istwert den Grenzwert erreicht bewirkt das Vergleichsgerät 22 über ein Gerät 25 die Abschaltung der Antriebe für das Hubwerk, das Wippwerk 13 oder/und das Teleskopierwerk. Die Geräte 24 und 25 werden ebenfalls von der Konstantspannungsquelle 20 mit Strom versorgtIf an actual value rises almost up to the limit value, the comparison device 22 triggers in a device 24 adjustable pre-warning signal off. When the actual value reaches the limit value, the comparison device 22 operates A device 25 switches off the drives for the lifting mechanism, the luffing mechanism 13 and / or the telescoping mechanism. The devices 24 and 25 are also supplied with current from the constant voltage source 20

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: befinden und zwei aufrechtstehende sich Laufräder 7 beiden ab inkelte Schenkel Wangen 8 d,e oben nacn ^^ g g gegenüber are and two upright running wheels 7 both from incelte legs cheeks 8 d, e above nacn ^^ gg opposite haben. Zum Lenken w drades 10 geschwenkt have . To steer w drades 10 swiveled dem Rahmen 1 mittels«ne Schenkei 9 ist mit the frame 1 by means of a tavern 9 is with An den rückwarugen Enden^d ^ ^ At the rear ends ^ d ^ ^ « dr Grundtorper«Dr Grundtorper f-r Pinen dem Rahmen 1 mSchenkei 9 ist mit for pinene the frame 1 m bar i 9 is with hMwa^ä^gn^m!^^^^^^ An den rückwarugen Enden^d ^ ^ hMwa ^ ä ^ gn ^ m! ^^^^^^ At the rear ends ^ d ^ ^ fahrbaren Kran mit einem in H<*eim^ung Zapfen « der Grundtorper ^ ^ ^mobile crane with a pin in the base of the basic gate schwenkbarer, längenveränderbaren Ausleger unter gelagert nde^ "f ^swiveling, length-adjustable boom mounted under nde ^ " f ^ Anwendung eines Istwertgebers fur die jewels ^lbenstange e1"« E"n den beiden Wangen 8Use of an actual value transmitter for the individual rods e1 "" E "in the two cheeks 8 vorhandenen, auf den Kran .w>r^nden Momente ZyUnder « zW1scher^- hat ^existing, on the crane. w > r ^ nd moments ZyUnder « zW1 scher ^ - hat ^ 2^Ä2 ^ Ä
DE19722225974 1972-05-27 1972-05-27 Load moment limiting device Expired DE2225974C3 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19722225974 DE2225974C3 (en) 1972-05-27 Load moment limiting device
NL7306938A NL7306938A (en) 1972-05-27 1973-05-17
IT2439173A IT987793B (en) 1972-05-27 1973-05-22 LOAD TORQUE LIMITING DEVICE
CH741373A CH547752A (en) 1972-05-27 1973-05-24 LOAD TORQUE LIMITING DEVICE FOR MOBILE LIFTING EQUIPMENT.
GB2512673A GB1406337A (en) 1972-05-27 1973-05-25 Load moment limiting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722225974 DE2225974C3 (en) 1972-05-27 Load moment limiting device

Publications (3)

Publication Number Publication Date
DE2225974A1 DE2225974A1 (en) 1973-12-06
DE2225974B2 true DE2225974B2 (en) 1977-04-28
DE2225974C3 DE2225974C3 (en) 1977-12-15

Family

ID=

Also Published As

Publication number Publication date
IT987793B (en) 1975-03-20
CH547752A (en) 1974-04-11
NL7306938A (en) 1973-11-29
GB1406337A (en) 1975-09-17
DE2225974A1 (en) 1973-12-06

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee