Load-monitoring system for boom-type crane

Details Load-monitoring system for boom-type crane Load-monitoring system for boom-type crane

1982-12-02

1985-07-30

Krass, Errol A.

Boots, shoes, and leggings

212153, 340685, G06F 1520

Patent

active

045325952

ABSTRACT:
A memory aboard a boom-type crane stores the coefficients of several polynomials of at least the fifth order closely approximating respective curves giving the maximum permissible load for different boom lengths as a function of the elevational angle of the boom (or the horizontal projection of its length). The set of coefficients read out under the control of a boom-length sensor is fed to a processor which calculates, for a given angle (or projection) as measured by another sensor, the numerical value of the maximum load corresponding to the selected polynomial. The actual value of the load, e.g. as detected by the hydraulic pressure of a jack engaging the boom at an intermediate point, is compared with the permissible maximum calculated by the processor; if that maximum is exceeded, an alarm is given.

REFERENCES:
patent: 3489294 (1970-01-01), Greb et al.
patent: 3534355 (1970-10-01), Fathauer
patent: 3638211 (1972-01-01), Sanchez
patent: 3740534 (1973-06-01), Kezer et al.
patent: 3819922 (1974-06-01), Horn et al.
patent: 3833130 (1974-09-01), Gerdes et al.
patent: 3990584 (1976-11-01), Strawson et al.
patent: 4052602 (1977-10-01), Horn et al.
patent: 4054055 (1977-10-01), Simon
patent: 4057792 (1977-11-01), Pietzsch et al.
patent: 4063649 (1977-12-01), Hubbard et al.
patent: 4178591 (1979-12-01), Geppert
patent: 4185280 (1980-01-01), Wilhelm
patent: 4228681 (1980-10-01), Pruex
patent: 4368824 (1983-01-01), Thomasson
patent: 4456093 (1984-06-01), Finley et al.

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