RO101301A2 - Differential limiter device - Google Patents

Differential limiter device

Info

Publication number
RO101301A2
RO101301A2 RO1988132964A RO13296488A RO101301A2 RO 101301 A2 RO101301 A2 RO 101301A2 RO 1988132964 A RO1988132964 A RO 1988132964A RO 13296488 A RO13296488 A RO 13296488A RO 101301 A2 RO101301 A2 RO 101301A2
Authority
RO
Romania
Prior art keywords
clamshell
cranes
block
reductors
closing
Prior art date
Application number
RO1988132964A
Other languages
Romanian (ro)
Other versions
RO101301B1 (en
Inventor
Ro Tisea Traian
Ro Dragu Teodor
Ro Aslau Teodor Ioan
Original Assignee
Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Utilaj Minier Si Masini De Ridicat, Timisoara, Judettimis, Ro
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 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Utilaj Minier Si Masini De Ridicat, Timisoara, Judettimis, Ro filed Critical Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Utilaj Minier Si Masini De Ridicat, Timisoara, Judettimis, Ro
Priority to RO1988132964A priority Critical patent/RO101301A2/en
Publication of RO101301B1 publication Critical patent/RO101301B1/en
Publication of RO101301A2 publication Critical patent/RO101301A2/en

Links

Landscapes

  • Control And Safety Of Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

This invention consists of a semi-automatic controlled device designed to be used on traditional cranes and bridge cranes that are equipped with twin mechanisms and clamshell. Alternately, it can be used on cranes with main or auxiliary lifting block for which it is not allowed to lift the main hook block above the auxiliary block when monitoring synchronisation.The device comprises two planetary reductors mounted in a housing; the two disks fixed at the reductors' ends rotate synchronically when the load block is moved up and down; when the clamshell is closed and opened again, the disk engaged from the lifting drum stays still, while the disk engaged from the closing/opening drum rotates by an angle corresponding to the closing travel of the clamshell. The electrical signal generated by this relative movement is picked by sensors sliding inside the sensor-holder arm mounted on the housing circumference.
RO1988132964A 1988-04-07 1988-04-07 Differential limiter device RO101301A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO1988132964A RO101301A2 (en) 1988-04-07 1988-04-07 Differential limiter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO1988132964A RO101301A2 (en) 1988-04-07 1988-04-07 Differential limiter device

Publications (2)

Publication Number Publication Date
RO101301B1 RO101301B1 (en) 1991-05-31
RO101301A2 true RO101301A2 (en) 1991-10-28

Family

ID=20121437

Family Applications (1)

Application Number Title Priority Date Filing Date
RO1988132964A RO101301A2 (en) 1988-04-07 1988-04-07 Differential limiter device

Country Status (1)

Country Link
RO (1) RO101301A2 (en)

Also Published As

Publication number Publication date
RO101301B1 (en) 1991-05-31

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