SU879318A1 - Device for checking moving compound weight - Google Patents

Description

one

The invention relates to the field of weighing technology.

A weighing device is known, which contains a weighing mechanism for weighing cars on the go, an analog-to-diffractive transducer, a determinant of the weighing moment, and a node for polling the parameters of cars p.

A disadvantage of the known device is the ability to control only a constant contingent of cars, since the preliminary equipment of each of them requires a carrier of the code of its parameters.

The closest in technical essence to the present invention is a device for weight control of a moving train, containing a weighing unit and a weighing moment sensor connected to the input of an analog-to-diffraction converter, a train direction sensor, a car counter and digital display units.

This device carries out weight control by comparing the results of weighing the empty and loaded composition.

Its disadvantage is that the output information, presented for example to the loading operator, cannot be used for

10 control over the correctness of the weight loading of the cars of the train with respect to the established standards, in connection with which the process of the weight control of the cars of the train is delayed and is not excluded

15 dispatch of trains with non-normalized loading of individual cars due to subjective mistakes of the loading operator. This leads to additional simple railcars on the access routes of enterprises and a decrease in the efficiency of their carrying capacity. Besides . Moreover, the field of application of these devices is limited, since they cannot be directly used in complexes of automatic weight metering of cars. The purpose of the invention is to increase the efficiency of using the capacity of cars by determining the deviation of their load from the norm. The goal is achieved by introducing a logic switch, tolerance counters, analyzers, reversible counters and deviation indicatorsJ in an amount equal to the maximum possible number of cars in the train, the car passage fixation unit, the input circuit of the car’s number, and a logical switch is connected to the outputs of the analog-digital switch, the car counter, the movement direction sensor and the outputs of the variance analyzers and to the counting inputs of reversible meters tolerances and tolerance counters, the installation inputs of the initial code of which are connected to the encoder, the inputs for recording the initial code — with the car number input chains, and the outputs — with the inputs of the variance analyzers, while the outputs of the reverse deviation counters are connected to the display units, and the outputs analyzers of otloneniy-to indicators of deviations, and the node of fixation of passage of the carriage is connected to the counter of cars. In addition, the device is equipped with chains of fixing weight deviations and a type of deviations, connected respectively with the outputs of reversible counters and analyzers of deviations, and chains of supplying weight-dispensing pulses connected with subtracting inputs of reversible counters of deviations. The drawing shows a device diagram (an embodiment for a composition of three cars). A composition consisting of 1,2,3 different types of coupled cars is depicted at the time of its passage with a light in the 4 direction of supply to a technological object, such as a loading bin. 5, and passing the axes of the car 1 through the platform of the weighing unit 6. The output of the weighing unit 6 through the analog-digital converter 7 is connected to the switched input of the logic switch S, the main control inputs of which are connected to the outputs once vnogo rows reversion counter carriages 9 and sensor 10 outputs the movement direction of the composition, and additional control inputs to the outputs of the analyzers 11, 12, 13 deviation. The latter are conventional digital code decoders. The counting inputs of the reversible counter of 9 cars are connected to the outputs of the fixing unit 14 of the passage of the car. Node 14 can be made, for example, on the basis of using photoelectric or radioisotope sensors to detect intercar spaces. The outputs of the switch 8 are connected to the counting inputs of reversible counters 15, 16, 17 deviations and counters 8, 19, 20 tolerances, the outputs of the bits of which are connected to the inputs of the corresponding analyzers 11, 2, 13 deviations, and the inputs of the initial codes to the first and The second group of outputs of the encoder 21, Blocks 22, 23, 24 of the digital indication are connected to the outputs of the bits of the corresponding reversible counters 15, 16.17 deviations. The inputs for recording the initial code of reversible counters 15,16, I7 deviations and counters 18,19,20 tolerances are connected to chains 25, 26, 27 for inputting consecutive numbers of cars in the train. The input of the encoder 2I is connected to the wiring circuit 28 of the car type input. The outputs of the analyzers 11, 12,13 deviations are connected to the corresponding indicators 29, 30,31 deviations, which can be represented, for example, by light indicators of the type of deviations (overload, underload), respectively, indicators 32, PD Analog-to-digital converter 7 is designed as a converter sequential counting with a single code at the output, i.e., a converter of a direct current magnitude (voltage) into a proportional number of pulses, the trigger input of the converter 7 being connected to the output of the weighing moment sensor 34, which The rear may contain, for example, several limit switches (not shown in the drawing) fixing the position of the axle (trolley) of the weighed car on the platform of the weighing unit 6, the number of reversible counters 15.16, 17, as well as the number of counters, 20 blocks 22.23, 24 digital displays

five

and indicators 29,30,31 deviations should correspond to the maximum number of coupled cars, supplied for loading,

In addition, the outputs of the bits of the reversible counters 15, 16,17 deviations and analyzers 11,12, 13 deviations, connected circuit 35,36,37 fixing weight deviations and circuit 38, 39, 40 types of deviations, and subtracting inputs of reversible counters 15, 16, 17 are connected respectively to the circuits 41, 42, 43 of the supply of weighing pulses.

The peculiarity of the logic switch 8 is that the effect of a digital code on the main control, the inputs excites the corresponding group of its outputs, for example, counters 15, 18 connected to the counting inputs, and the redistribution of potentials within this group of outputs occurs under the influence of a digital code on its additional control inputs from the corresponding variance analyzer, for example 11.

The device works as follows.

During the initial supply of the empty train to the platform of the weighing unit 6, the operator enters wagon types 1,2,3 - composition and their sequential numbers by affecting the corresponding wagon type input chains 28 and the wagon number sequential number 25,26,27 (input of this information can produced automatically, for example, by means of identification devices such as carriages and carriages).

The encoder 21 entered information about each car is converted into a digital code of its carrying capacity and a digital code of permissible overload, which are received respectively at the inputs of the installation of the initial code of reversible counters 15,16,17 and counters 18,19,20 tolerance.

Since the resolution inputs of the entry of the initial code of the reversible counters 15,16,17 and the counters 18,19,20 are connected to the chains 25,26, 27 of the input of the sequential number of the carriage, it is obvious that if, for example, circuit 25 corresponds to the first carriage of the filed composition, then in the bits of the reversible counter 15 the digital code of the load rate will be written

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car I, and in the counter 18 is the code for the permissible overload of car 1.

Similarly, the normalized and allowable values of the loading of the car 2 will be recorded in the corresponding reversive counter 16 and the tolerance counter 19, etc.

In the process of further following the composition to the loading bunker 5, the sensor .10 of the direction of movement of the composition excites the control input () of the switch 8 corresponding to the direction 4 of the composition feed, and the node 14 with the full passage of each composition car through the weighing node 6 generates a pulse arriving at the summing counting the input () of the reversing counter of 9 cars, by virtue of which the contents of its bits as the cars prozomezdeni consistently increases, reflecting the sequential number of each weighed car, n acina from the first.

Moreover, each hitch of the axle (trolley) of cars 1,2,3, to the measuring platform of the weighing unit 6 is accompanied by the supply of an analog-digital converter 7 (at the moment of time determined by the weighing moment sensor 34) a series of pulses, the number of which is proportional to the tare weight of the axis ( trolley) weighed car.

The specified pulse train through. logical switch 8 is fed to the summing soliton input (+) of the reversible counter deviations, which corresponds to the sequential number of the car weighed at a given time. Obviously, after passing the empty train in direction 4 through the weight measuring unit 6, the 9 car counter will record the code of the last car 3, and the discharge bits of each of the reversible counters 15,16,17 will be increased by the amount of tare of individual axles (carts) the corresponding car of the composition and will reflect the normalized mass of the R .: gross wagon

P + P

HOpMli T-l

the serial number of the car in the composition; load rate of the E-th car;

tare weight of the 1st car. 7 After loading the cars on the technological object 5, the loaded train moves in the opposite direction to the feed direction 4, and the component direction sensor 10 excites the control input (-) of the switch 8, and the fixation unit 14 for the passage of the cars each time the cars pass through the weight meter Node 6 generates a pulse arriving at the subtracting counting input (-) of the reversing counter of 9 cars, whereby the contents of its bits decrease gradually as the cars pass, reflecting the sequential sequence. We weigh up each of the car, starting from the last. At the same time, the hitch of the axle (trolley) of wagons 3,2,1 to the platform of the weighing unit 6 is accompanied by the generation by the converter 7 of a series of pulses, the number of which is proportional to the actual gross mass of the axle (laying) of the car. These pulses are sent by the rotary switch 8 to the subtracting counting input (-) of that reversible deviation counter, which corresponds to the sequential new weighted BaroHaj, as a result of which the content of its digits decreases. If in the process of subtracting the actual weight P2 gross of all axles (carts) of the car, equal to where Rtseu is the actual weight of the load in 1 car, the contents of b.Pi of the bits of the corresponding reversible counter of deviations do not reach the cooler Р 24 1 while the value of Р- -Р 4-1 2.1 iKopwi no-1 corresponds to the value of the weight underload of the material in the car. In this case, the resulting underload value is presented to the loading operator in the form of readings from one of the leading indicators 22,23,24, and the corresponding analyzer 11,12,13 deviations will excite the underload indicator 5, for example, indicator 33 for car 1. If LR contents the bits of the reversible deviation counter will reach zero, i.e. When the weight of the load, for example, in the car 1 18 exactly corresponds to the load, the analyzer 11 deviations will quench the underload indicator 33 and excite one of the additional control inputs of the logic switch 8, as a result the output of the analog-digital converter 7 switches to the counting input, for example, the subtracting the tolerance counter 18, and upon further arrival of the weight pulses, the contents of the bits of the counter 18 are sequentially reduced. Until the content of the tolerance counter 18 goes to zero, i.e. when the actual weight of the load in the car is within the tolerance P A p norm1 no1 HopMi AOP1 where A {dTT is the normalized overload value of the I-th car originally recorded in the bits of one of the counters 18-20, the digital display unit 22 indicates a zero deviation of the car I, and none of the indicators of the type of deviations set 29 is not excited. When the weight of the car 1 of the net reaches its limit value (J, oj uPupni), the bits of counter I8 tolerate the tolerance to zero, and the logical switch 8 by means of a control input from the analyzer 11 deviations connects the output of the analog-to-digital converter 7 to the corresponding counting input (+ ) reversible counter 15. If the current value of the net weight of the car 1 exceeds the maximum permissible value, then the excess sequence of weight pulses generated by the converter 7 accumulates in the bits of the reversing Meters withstand 15, the contents of which reflects the value of the weight of the car overload. In this case, the analyzer 11 deviations, deciphering the combination of the counter codes 15 and 18, will excite the illuminator 32 (overload) and the display unit 22 will provide the operator with information about the weight quantity of excess load in the car I. Thus, it is obvious that after following the loaded cars 1,2 , 3, the composition through the weighing unit 6 in the direction opposite to the 4 direction of flow, digital indi

The catchers 22, 23, 24 represent to the loading operator the absolute values of the deviations of the weight of the cargo in each car relative to the standard values and indicators 29,30,31 deviations view the resulting deviations.

Submission of the specified weight information to the loading operator allows him to speed up (in comparison with the known systems of the same name as the beginning) the process of determining the degree of loading of railcars, eliminate subjective errors during the necessary calculations, as well as organize the subsequent final metering of railcars.

If, on the enterprise, there is an automatic weight dosing of cars on the move, the functional features of the device allow it to be used as a device for digital settings of current weight deviations for automatic means of selection and loading of cargo.

For example, if car 1 has an excess load, then in the process of its subsequent dosing, according to the state of the potentials of the circuit 38, the types of deviations include mechanisms for selecting the material, and when the weighing impulses (from the means of measuring the performance of the selection) are received, the deviating input 4I of the reverse counter 15 deviations the bits of the latter are reduced — In this case, the digital code of the current value of the deviations goes through circuit 35 to the automatic selection performance regulator (not shown) and by the end Processes selection cargo contents obratits counter 15 to zero, and state indicator 29 will correspond to the normalized loading wagon 1.

The introduction of this system in the access roads of industrial enterprises will help to accelerate the process of filling and metering of vehicles and reduce the actual actual ones.

Claims (2)

Claims 1. Aesov device for controlling a vehicle containing a weight of 1810 measuring node and time sensor, weighing, connected to the input of an analog-digital converter, composition motion sensor, car counter and digital display units, characterized in that, in order to increase the efficiency of using the car load capacity, it introduced a logical switch, tolerance counters, analyzers, reversible counters and indicators of deviations in the number equal to the maximum possible number of cars in the composition, the node is fixed wagon passage, a wagon type input circuit with an encoder, and a wagon number input circuit, the logical switch being connected to the outputs of the analog-digital converter} of the car counter, the movement direction sensor of the train, and the outputs of the variance analyzers and the counting inputs of the reversible deviation counters and tolerance counters, the inputs for setting the initial code of which are connected to the encoder, the inputs for enabling the recording of the initial code to the input chains of the car number, and the outputs to the inputs of the corresponding analyzer deviation with the outputs of the reverse the deviation counters are connected to the display units, and the outputs of the variance analyzers are connected to the deviations indicators, and the carriage fixation unit is connected to the car counter. 2. The device according to claim 1, characterized in that it is provided with chains for fixing weight deviations and types of deviations associated respectively with the outputs of reversible counters and analyzers of deviations, and chains for supplying weight-recognizing pulses associated with subtracting inputs of reversible meters deviations. Sources of information taken into account in the examination 1. US patent 3393757, cl. 177-3, pub. 1968. 2. Gumanyuk IM and others. Automatic weighing and accounting of the mineral being transported. Coal of Ukraine, 1971, № 2. -five XL - 2 / / / / / / / / / / 7 / / / /  O f 29 s ::