RU2671552C1 - Device for completeness control of loading of tractor diesel - Google Patents

Abstract

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring technology and, in particular, to devices for monitoring the completeness of the loading of a tractor diesel. Device for monitoring the completeness of the loading of a tractor diesel engine contains power source (8) and two electric channels (1, 2), including primary converters (3), signal converters (6) and indicators (7) connected by electrical cables (9). Each primary transducer (3) is made in the form of follower consisting of a lever (4) and inductive displacement sensor (5) with different electrical characteristics for each electrical channel (1, 2). To match the output signals from electrical channels (1, 2), buffer cascade (10) is installed in their common circuit between signal converters (6) and indicators (7).

EFFECT: technical result is to ensure the accuracy of the readings on the full load of the tractor diesel.

1 cl, 1 dwg

Description

The invention relates to measuring equipment and, in particular, to control devices for loading a tractor diesel when choosing economical operating modes.

A device for monitoring the completeness of loading a tractor diesel [Pat. 2198388 RF, IPC G01L 23/08. A device for determining the load of a diesel engine / N.I. Zubov, S.V. Sviridov, I.I. Bespiatov. - No. 2001102129/06, Decl. 01/23/01, Publ. 02/10/03, Bull. No. 4], comprising an electric channel including a primary converter, a signal converter, an indicator indicator and a power source.

A contactless couple is used as a primary converter, including a shaft of the lever of a centrifugal speed controller (RFB) with a permanent magnet mounted in it and an adjusting screw made of a diamagnet, inside which a semiconductor sensitive magnetically controlled element is inserted, which is capable of changing the value of the output signal from the changing magnetic field caused by a change in the distance between the lever shaft and the adjusting screw, the value of which is proportional to the step Do not load the diesel engine.

The disadvantage of this device is the low accuracy of the indications of the full load of the tractor diesel.

A device for monitoring the completeness of loading a tractor diesel [Pat. 2379640 RF, IPC G01L 23/22. Diesel load control device / A.P. Ukhanov, S.V. Streltsov, R.N. Aftermkimov, P.M. Gaysin. - No. 2008130215/06, Decl. 07/21/2008, Publ. 01/20/2010, Bull. No. 2], comprising an electric channel, including a primary converter, a signal converter, an indicator pointer and a power source, and a tracking device made in the form of a centrifugal RFB corrector lever and an inductive displacement sensor mounted in the corrector housing is used as a primary converter.

The magnitude of the output signal of the primary converter is determined by the completeness of the loading of the diesel engine and depends on the movement of the core of the inductive sensor under the action of the corrector lever of the centrifugal RF. The signal converter provides stabilization of the output signal of the primary converter and its conversion into indications of an indicator of the engine load completeness by torque.

The disadvantage of this device is the low accuracy of the indications of the full load of the tractor diesel.

The closest in technical essence to the claimed invention relates to a device for monitoring the completeness of loading of a tractor diesel [Pat. 2514544 RF, IPC G01L 23/08, F02D 35/00. Device for monitoring the completeness of loading of a diesel engine / A.P. Ukhanov, M.V. Ryblov, S.V. Streltsov, R.N. Aftermkimov. - No. 2012129082/06, Decl. 07/10/2012, Publ. 01/20/2014, bull. No. 2], comprising an electric channel including a primary converter, a signal converter, an indicator indicator and a power source. As a primary transducer, a tracking device is used, made in the form of a corrector lever of a centrifugal RFB and an inductive displacement sensor mounted in the corrector body.

At the same time, there is a second electrical channel, including a primary converter, a signal converter and an indicator pointer, and a follower made in the form of a centrifugal RFV regulator spring lever and an inductive displacement sensor mounted in the screw of the maximum fuel supply limiter is used as the primary converter.

Inductive displacement sensors have individual electrical characteristics (a different number of turns of electromagnetic coils, the course of the cores, structural material, etc.).

The disadvantage of this device is the low accuracy of the indications of the completeness of the loading of the tractor diesel due to the inconsistency of the output signals from two electrical channels.

The claimed invention is aimed at eliminating the above drawback and the following technical result was obtained from its application: ensuring the accuracy of indications of the completeness of loading of a tractor diesel engine due to the inconsistency of the output signals from electric channels incorporating inductive displacement sensors with different electrical characteristics.

The specified technical result is achieved through the use of a buffer cascade installed in a common circuit of electrical channels between signal converters and indicator indicators.

The drawing shows a diagram of a device for monitoring the completeness of loading of a tractor diesel.

The tractor diesel engine completeness control device contains two electric channels 1, 2, including each primary transducer 3, made in the form of a tracking device, consisting of a lever 4 and an inductive displacement sensor 5, having individual electrical characteristics for each channel 1, 2, a signal converter 6 , an indicator pointer 7 and a power source 8 connected by electric cables 9, while in the common circuit of electrical channels 1, 2 between the signal converters 6 and indicator indicators 7 buffer cascade 10 is on.

A device for monitoring the completeness of loading of a tractor diesel engine operates as follows.

The operator, setting the operating mode of the tractor diesel engine through the fuel supply control, rotates the lever 4 of the spring of the centrifugal RFV regulator, which moves the core of the inductive sensor 5, as a result of which the output signal of the primary converter 3 of the second electric channel 2 changes. The output signal from the primary converter 3 is received into a signal converter 6 of the second electric channel 2, which provides stabilization of the signal and its conversion, then to the buffer m stage 10 the signal is amplified and is coordinated with the first electrical signal of channel 1, then amplified, coherent and the converted signal enters the indicator pointer 7 the fuel supply.

A centrifugal controller that automatically maintains the tractor diesel engine's operating mode depending on the load moves the centrifugal RFV corrector lever 4, which moves the core of the inductive sensor 5, as a result of which the output signal of the primary converter 3 of the first electric channel changes. The output signal from the primary transducer 3 enters the signal transducer 6 of the first electric channel 1, which provides signal stabilization and its conversion, then in the buffer stage 10 the signal is amplified and matched with the signal of the second electric channel 2, after which the amplified, matched, and converted signal enters indicator pointer 7 of the tractor tractor full load by torque.

The coordination of the output signals from the two electric channels 1, 2 ensures the accuracy of the readings of each indicator pointer 7 while monitoring the completeness of the loading of the diesel and fuel supply to its cylinders.

Claims (1)

A device for monitoring the completeness of loading of a tractor diesel engine, comprising two electrical channels, each comprising a primary converter made in the form of a tracking device consisting of a lever and an inductive displacement sensor having individual electrical characteristics for each channel, a signal converter, an indicator indicator, and a power source, connected by electric cables, characterized in that in a common circuit of electrical channels between signal converters and indicator pointers unplugged buffer stage.

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