SU433095A1 - DIGITAL INDICATOR OF DEPARTURE AND RELATED LOADING CAPACITY OF ADJUSTABLE ARROW OF CRANES - Google Patents

Description

one

The invention is adapted to safety devices installed on cranes, namely, to the departure indicators and the corresponding carrying capacity. Departure indicators are known, which contain boom extension and inclination sensors and a difficult-to-register instrument.

However, these departure signs are complex, not very reliable, and do not provide the driver with in-depth digital information on the varying reach and load capacity of the boom.

The purpose of the invention is to increase reliability and provide the driver with acoustic digital information on the varying boom reach and crane payload.

This is achieved by the fact that the pointer sensors are equipped with threshold transducers connected to a light board, at the intersection of the board indicators are indicated by the size of the overhang of a complex boom, and illuminators of digital characters printed on the board are connected to the corresponding threshold transducers in parallel through a logical element that performs the function "AND.

FIG. 1 is a block diagram of a pointer; in fig. 2 - board layout; in fig. 3 - functional scheme.

Digital departure indicator (see fig. I)

It has a magnetic lift angle sensor 1, a boom length sensor 2 and a board 3.

The angle of the boom of the crane conditionally “divided into sections by threshold transform. The boom angle sensor 1 and the boom length are divided into sections using similar threshold transducers of the boom 2 sensor. The output signals of the transducer's threshold transducers are connected to the board 3.

The digital signs of the vertical scale 4 of the board 3 correspond, for example, to the boom angle sections, and the digital signs of the horizontal scale 5 correspond to the boom length sections.

The actual magnitude of the departure and permissible load on the board is indicated by illuminators at the intersection of the numeric characters of the vertical and horizontal scale of the board 3.

The functional diagram (see Fig. 3) shows the threshold transducers 6 (L |, Lj, .bc, .... L), the boom 2 length sensor, for example, the flag that connects them, the illuminators 7, showing the boom length value , threshold transducers 8 (oi, aj, 0 $, ..., a) of the mating sensor of the angle of elevation of the warmer 1, for example, the flag 9, switching them, illuminators JO, showing the angle of the boom, logic elements Non-performing function And, and illuminators of 12 digital characters, denoting the amount of departure and the corresponding load capacity of the arrows and the result of mathematical operations performed, for example, according to the formula + t coscf where 1 is the length of the telescopic or retractable arrow; a is the varying angle of lift of the telescopic or retractable boom. When the boom is raised, the gauge 1 gauge 1 still replaces the flag 9, which includes alternately a pair of horn converters 8, which in turn connect the illuminators 10, showing the boom angle and send signals to; a series of parallel-connected (horizontally) logical elements 11, performing the “I. In the boom length sensor 2, FLI4k connects one of the threshold transducers 13, which includes one of the illuminators 8, indicating the length of the arrow ((1 sends a signal to a series in parallel of the logical elements I (vertically) of logical elements I, performing the function "I. When signals are received from two threshold non-transducers to the logical element "And, the next leg HH1I turns on the illuminator of a certain digital sign4, for example (From) 14., When measured, the arrows 1 1 and its Kma angle include threshold transducers, which in turn are The other illuminators of the scoreboard will match the change in boom angle and length, and therefore departure. As a result, the crane operator constantly has information about the boom length, lifting angle, reach and corresponding weight level on the digital scoreboard. boom, consisting, for example, of a main boom and a shunting jib, the functional c. of the digital pointer does not change, and the numeric characters are the result of mathematical operations performed using the formula L a + L-coscr, -t-tg cosflfj, ( Subject izob Digital departure gauge and suitability: it has a lifting capacity of adjustable boom cranes, containing boom extension and tilt sensors and a boom detector registering years of boom, characterized in that, in order to increase reliability in operation, bot and provide up-to-date digital information about the varying outreach and load capacity of the boom, the sensors are equipped with threshold converters connected to the light panel, at the intersection of which there is a conviction of the amount of departure of a complex boom, and the illuminators are digital x characters printed on the board are connected to the corresponding threshold converters, in parallel through a logical element that performs the function "I.

Nutrition

9g.1

9U1.2.