SU759893A1 - Conveyer station for testing internal combustion engines - Google Patents

Description

and.

The present invention relates to the field of engineering, in particular, to stations for testing internal combustion engines.

Known conveyor stations for testing internal combustion engines containing test and certification sites and made, in the form of a number of stands on a conveyor, each of which has at least one sensor of a certified parameter, and on the conveyor a certification test [ G].

In such test stations, it is necessary to install a full set of expensive cumbersome test equipment at each 15 booths. It is the mobility of the stand that creates difficulties in certification and causes the need for a sharp increase in the volume of equipment of the testing station as a whole.

These drawbacks are partially eliminated in stations containing test and certification sites and completed. in the form of a number of stands movable on the conveyor, on each of which there are at least one sensor of the parameter being certified and a contact

2

You transfer information, and on the conveyor, at the certification site, there are information receiving contacts, a memory unit, a certification panel and a comparator associated with information receiving contacts [2].

In the well-known stations, the engine mounted on the mobile stand, passing the Test section, performs all the necessary modes in accordance with the requirements. At the site of attestation through the contacts of receiving "information, the stand is connected to the attestation console, where the necessary modes are again generated. Then the indicators are recorded using sensors of the parameter to be certified through the contacts of receiving information, memory unit, ^ comparator. And, in the process of the operation of the mobile stage was stopped, which does not allow to increase the test performance, since connecting to the appraisal panel and reproducing all modes takes a significant part of the test cycle.

The purpose of the Invention is to shorten the test cycle.

This goal is achieved by the fact that the station is additional co3

759893

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holds a detector amplifier, an inductive oscillator and a diode, and the memory unit is placed on the stand with the possibility of periodic communication with the output of the comparator, whose input through the detector - amplifier and information transfer contacts made in the form of the first and second plates of the electric capacitor, is connected to the output of the inductive self-oscillator The power bus of which is connected via a diode to the output of the sensor of the parameter being certified.

FIG. 1 is a block diagram of a conveyor test station; in fig. 2 - automatic device of the mobile stand.

The conveyor test station includes certification section 1 and test section 2. Through both sections passes the highway 3 conveyors, carrying on itself test benches 4.

On site 1 of certification there is a control panel 5 of certification and contacts b for receiving information.

At site 2 of the tests are located detector-amplifier 7. and a comparator 8, information transfer contacts 9 and a second capacitance plate 10. The first plate 11 of the electrical capacitance is mounted on the movable test bench 4. The movable stand 4 also comprises an information receiving contact 12 and an information transfer contact 13.

The automation device consists of an inductive auto-oscillator 14, periodically connected to the first plate 11 of the electrical capacitance, a sensor 15 of a certified parameter connected via a diode to the power supply bus of the inductive auto-oscillator 14 and a memory block 16 periodically connected to the information 12 and 13.

The station works as follows. '

"Along the highway 3 conveyors, stands 4 are moving with installed engines being installed on them. Each movable stand is equipped with a memory block 16 and an inductive self-oscillator 14, a sensor 15 of the parameter to be certified and the first capacitance plate 11 (Fig. 2). tests (Fig. 1) the engine conducts in the run-in regimes. In the place of the section where the engine has the rated parameter under test conditions, the second capacitance plate 10 is installed. At the moment when the first 11 and second 10 plates of the electric capacitance The spines are combined, the sensor signal 15, transformed by an inductive self-oscillator 14 into a high-frequency one, through the capacitance formed by two plates 10 and

11 is transmitted to the detector amplifier 7 and the comparator 8. If the parameter to be certified has a nominal value, the comparator 8 transmits a signal to the memory block 16 of the stand through pins 9 and 12. The stand with the engine installed on it continues its movement along the conveyor, having information about accredited parameter in the memory block 16, and enters the area 1 certification. Here, through contacts 13 and 6 (Fig. 1), information about the parameter being certified is entered into the appraisal panel 5. Engine certification takes place.

In case of need to certify the engine by several parameters, the required number of sensors can be installed on a mobile stand.

The use of the proposed test station allows the evaluation of the parameters of the tested engines on any part of the path through one certification panel and to combine the measurement process with the process of testing with the continuous movement of the test object, i.e. shorten the test cycle. -

Claims (2)

Claim 1. A conveyor station for testing internal combustion engines, containing a number of stands on the conveyor, each of which houses at least one sensor of the parameter to be certified and information transfer contacts, and a conveyor, on the certification section of which the information receiving contacts, the memory block, the certification panel and are placed. A comparator associated with information receiving contacts, characterized in that, in order to shorten the test cycle, the station further comprises a detector amplifier, an inductive auto-oscillator and a diode, and a memory unit is placed on the stand with the possibility of periodically connecting to the comparator output, which input through the detector Amplifier and information transfer contacts are connected to the output of an inductive self-oscillator, the power supply bus of which is connected via a diode to the output of the sensor of the parameter being certified. 2. Station pop. 1, characterized in that the contacts transmitted information made in the form of plates of electrical capacitance.