BE898326A - Coupling system to limit the load and protect against overloading of a lifting device control. - Google Patents

Coupling system to limit the load and protect against overloading of a lifting device control.

Info

Publication number
BE898326A
BE898326A BE2/60272A BE2060272A BE898326A BE 898326 A BE898326 A BE 898326A BE 2/60272 A BE2/60272 A BE 2/60272A BE 2060272 A BE2060272 A BE 2060272A BE 898326 A BE898326 A BE 898326A
Authority
BE
Belgium
Prior art keywords
limit
load
relay
lifting device
device control
Prior art date
Application number
BE2/60272A
Other languages
French (fr)
Original Assignee
Mannesmann 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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of BE898326A publication Critical patent/BE898326A/en

Links

Classifications

    • 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
    • B66D1/54—Safety gear
    • B66D1/58—Safety gear responsive to excess of load

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
  • Safety Devices In Control Systems (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

Dans ce système, l'interrupteur de charge partielle (S1) commande un relais de charge partielle (d1), un interrupteur de charge limite (S2) un relais de charge limite (d2). Un étage de temporisation (Z) comprend un relais d'étage de temporisation (d3) commandé par des contacts (d1.2 ou d2.3) du relais (d1) ou du relais (d2) qui comporte un contact d'étage de temporisation (d3.2). Le relais de charge limite (d2) coupe sans retard lorsque l'interrupteur de charge partielle (S1), l'interrupteur de charge limite (S2) et le contact d'étage de temporisation (d3.2) sont ouverts, et il coupe avec retard lorsque le contact (d3.2) est fermé.In this system, the partial load switch (S1) controls a partial load relay (d1), a limit load switch (S2) a limit load relay (d2). A delay stage (Z) comprises a delay stage relay (d3) controlled by contacts (d1.2 or d2.3) of the relay (d1) or of the relay (d2) which comprises a stage contact of time delay (d3.2). The limit load relay (d2) cuts without delay when the partial load switch (S1), the limit load switch (S2) and the delay stage contact (d3.2) are open, and it cuts with delay when the contact (d3.2) is closed.

BE2/60272A 1982-12-22 1983-11-29 Coupling system to limit the load and protect against overloading of a lifting device control. BE898326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823247369 DE3247369A1 (en) 1982-12-22 1982-12-22 Circuit arrangement for load limiting and overload protection of a hoist drive

Publications (1)

Publication Number Publication Date
BE898326A true BE898326A (en) 1984-03-16

Family

ID=6181327

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60272A BE898326A (en) 1982-12-22 1983-11-29 Coupling system to limit the load and protect against overloading of a lifting device control.

Country Status (5)

Country Link
BE (1) BE898326A (en)
DE (1) DE3247369A1 (en)
FR (1) FR2538363B1 (en)
IT (1) IT1167021B (en)
NL (1) NL8304365A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623755A1 (en) * 1986-07-15 1988-02-18 Abus Kg Device for overload protection of electrical drives
DE3714903A1 (en) * 1987-05-05 1988-11-24 Skt Podem Overload limiter for lifting (hoisting) machines
CN102701081B (en) * 2012-05-16 2015-06-10 苏州汇川技术有限公司 Frequency converter overload protection system and method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2058712C3 (en) * 1970-11-28 1975-07-31 Demag Ag, 4100 Duisburg overload protection for a hoist

Also Published As

Publication number Publication date
IT1167021B (en) 1987-05-06
IT8323863A0 (en) 1983-11-24
NL8304365A (en) 1984-07-16
FR2538363B1 (en) 1986-04-25
FR2538363A1 (en) 1984-06-29
DE3247369A1 (en) 1984-07-05
IT8323863A1 (en) 1985-05-24
DE3247369C2 (en) 1984-11-08

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: MANNESMANN A.G.

Effective date: 19911130