RU73077U1 - STAND SIMULATOR FOR TROUBLESHOOTING IN THE GENERATOR INSTALLATION - Google Patents

Abstract

The objective of the proposal is to increase the effectiveness of learning the causes of malfunctions in the generator set. The simulator stand is a box on which the devices of the generator set are fixed. The frame of the box is a frame made of a metal corner 25 × 25 mm and sheathed with plywood sheets. The size of the simulator stand is 1450 × 600 × 250 mm The front side of the simulator stand (Fig. 1) is divided into two parts: the left-hand side contains the devices of the generator set with the introduction of faults: mass switch - 1; top battery cover - 2; ammeter - 3; inclusion of ignition of devices of a starter - 4; relay controller RR-132A-0 - 5; generator G287B - 6; connecting wires - 7; fault input switch unit - 8; and also there is an algorithm for finding the causes of failures of the generator set by the G287B generator and relay regulator 132A-0 - 9. On the right side are parts in the context: a rectifying unit - 1; rotor - 2; stator - 3; relay-regulator РР-132А-0 - 4. The devices of the generator set are mounted with the help of metal fasteners shown in the drawings. All elements of the stand are interconnected using connecting wires. To power the simulator stand, you need a 12 V transformer and a rectifier unit for a 12 V transformer. Compared with the prototype, the proposed simulator stand has the following advantages: 1. More effective training in troubleshooting; 2. Visibility of training, the possibility of practical use of the simulator stand and showing simultaneously a large number of students; 3. The ability to use the stand while in an audience of any size; 4. The ability to learn how to troubleshoot a generator set practically (without deliberately creating a malfunction in a car, which takes a lot of time, that is, it saves time and money). 1 s.p. f-ly, 1 ill.

Description

The proposal relates to teaching aids and can be used to increase the effectiveness of the educational process in the discipline of electrical equipment of automotive vehicles.

Known generator set of the car, which implements the algorithm for finding the causes of malfunctions (V.N. Khartanovich, "Automotive generator sets". Study guide. - Chelyabinsk: CHVVAKIU, 1987. - 91 p.), The use of which is possible only on the car itself.

The disadvantage of this system is the inability to use the car in small audiences, the difficulty of learning how to troubleshoot a generator set due to the huge number of wires of other systems, the inability to explain the material to a large number of trainees and the high risk of the vehicle’s generator set failing due to the fault of the trainees themselves.

This generator set is the closest to the proposed stand-simulator in technical essence and is taken as a prototype.

The objective of the proposal is to increase the effectiveness of learning the causes of malfunctions in the generator set.

The simulator stand is a box on which the devices of the generator set are fixed. The frame of the box is a frame made of a metal corner 25 × 25 mm and sheathed with plywood sheets. The size of the exercise bench is 1450 × 600 × 250 mm

The front side of the simulator stand (Fig. 1) is divided into two parts: on the left side there are devices of the generator set with the introduction of faults: mass switch - 1; top battery cover - 2; ammeter - 3; inclusion of ignition of devices of a starter - 4; relay controller RR-132A-0 - 5; generator G287B - 6; connecting wires - 7; fault input switch unit - 8; and also there is an algorithm for searching the causes of failures of the generator set by the G287B generator and relay controller 132A-0 - 9.

In the right part are parts in the context of: a rectifying unit - 1; rotor - 2; stator - 3; relay controller RR-132A-0 - 4.

The devices of the generator set are mounted using metal fasteners shown in the drawings. All elements of the stand are interconnected using connecting wires. To power the simulator stand, you need a 12 V transformer and a rectifier unit for a 12 V transformer.

The proposed stand simulator works as follows.

Input faults is carried out through the contacts of the corresponding relays (figure 2). For this, one of the wires (most often with a positive

potential) we pass through the relay. When the relay is activated, the contacts open, its circuit we need breaks, the consumer switched on does not work. The simulator stand includes nine faults.

1. There is no charging current - wire breakage from the ammeter to the ignition switch of the starter devices;

2. There is no charging current - the relay-regulator PP-132A-0 is faulty - the transistor is broken;

3. There is no charging current - wire breakage from the “+” terminal of the generator to the “AM” terminal of the ignition on of the starter devices;

4. High charging current - the relay-regulator PP-132A-0 is faulty - the transistor closes to ground;

5. No charging current - open diodes of the rectifier unit;

6. There is no charging current - wire breakage from the “KZ” terminal of ignition on, devices, starters to the “+” terminal of the relay regulator РР-132А-0;

7. Large charging current - the wire of the “Ш” terminal of the generator to the relay-controller terminal closes to ground;

8. There is no charging current - wire breakage from the “+” terminal of the relay-regulator РР-132А-0 to the “Ш” terminal of the generator;

9. No charging current - wire breakage from terminal “Ш” of the relay-regulator to terminal “Ш” of the generator.

Instructions for working with the stand.

The simulator stand is a stationary installation and should be operated indoors at temperatures from 0 to 35 ° C, relative humidity up to 80 percent.

It is necessary to protect the simulator stand from bumps and drops, moisture entering the lining and inside the stand.

There should not be dust in the air of the room, which conducts electric current, corrosive vapors and gases corroding metals, paints and coatings insulation.

To enable the simulator stand, it is necessary to insert the plug into an AC outlet with a voltage of 220 V, frequency 50 Hz. At the same time, a voltage of 12 V is supplied to the devices of the electrical systems of the stand and to the fault input unit. Turn on the mass switch.

To turn on the direction indicator, turn the rotary switch knob in the corresponding direction. To turn on the alarm, press the button of the alarm switch.

To enter this or that malfunction, it is necessary to turn the switch knob to the position corresponding to the malfunction. Moreover, the zero position, in which the entire system is operational, is the leftmost position of the switch.

To disable the stand you must:

1. Turn off all devices using the controls;

2. Turn off the ignition switch of the instruments and starter;

3. Turn off the mass switch;

4. Unplug the plug from the power outlet.

Compared with the prototype, the proposed simulator stand has the following advantages:

1. More effective troubleshooting training;

2. Visibility of training, the possibility of practical use of the simulator stand and showing simultaneously a large number of students;

3. The ability to use the stand while in an audience of any size;

4. The ability to learn how to troubleshoot a generator set practically (without deliberately creating a malfunction in a car, which takes a lot of time, that is, it saves time and money).

Instructions for work on the stand.

Instructions for work on the simulator stand include the following activities:

To work on the simulator stand, it is necessary to connect the simulator stand to a 220 V network, for connection, there is a plug with a wire on the back wall.

The second point, it is necessary to turn on the mass switch, for which move the mass switch to the upper position.

The third point, it is necessary to set the packet fault switch to the vertical position with the green LED to the left, this switch position is the working position of the generator set without entering faults.

Fourthly, it is necessary to check the operability of the generator set, for which it is necessary to turn the ignition key to an unfixed position, while the electric motor rotates the generator.

To enter faults, it is necessary to switch the packet switch to the first position, or to any other position. Turn the ignition key to a fixed position and look for the entered fault with the control lamp, after detecting the fault, it is necessary to check the correctness of the detected fault, including in the non-fixed position, the fault is eliminated by the ammeter using a known-good wire.

Safety measures when working at the stand.

To ensure safety when working on the simulator stand, it is necessary to observe safety measures in the following scope:

It is forbidden to work on the simulator stand with exposed wires, poor contact, strong heating of the power transformer, if it is connected to the network.

Do not service the transformer if it is plugged in.

In case of malfunctions in the simulator - work on it is not allowed.

To work on the simulator are allowed people who have studied the operating instructions and have been instructed in safety when working on electrical installations.

ECONOMIC JUSTIFICATION.

The economic effect that can be obtained by introducing an electrified generator set of a car into the training process for automotive service specialists will require the following conditions:

The stand should be widely introduced into the educational process of educational automobile units and units, higher educational institutions, driving schools preparing specialists from among civilians for recruiting for active military service, as well as other organizations and institutions.

The stand should be made by forces of the military units and educational institutions interested in it.

Use of the stand must comply with the instructions and instructions for use of the simulator stand.

The above conditions for obtaining the economic effect of the introduction of the stand in the educational process of training specialists of the automotive service when they are implemented will provide significant material and financial savings. We consider each condition individually.

During its implementation, all of the above ways of saving material resources depend on what material the simulator stand will be made of.

The second condition is the saving of material and monetary resources, since the manufacture of the stand by the forces of the unit is quite realistic, it does not require valuable materials and high-precision technological details. Only fault input devices are manufactured.

It is also advantageous to manufacture this stand centrally, since delivery does not require large material and monetary resources.

This simulator also significantly reduces the training period, as it provides good visibility of the generator set and the allocation of its individual electronic circuits.

Reducing the time required to study this issue allowed students to devote more time to a deeper study of other important issues on the operation and structure of this system or other systems.

The creation of an electrified generator set, its widespread introduction and competent operation, will ensure a significant reduction in material resources, which is especially important at this stage of the development of military construction, when the course is taken on the quality condition of the Armed Forces, on their ability to independently and quickly resolve all combat issues, educational and daily activities.

Claims (1)

A bench simulator for detecting malfunctions in a car generator set, containing devices for a car generator set, characterized in that all devices are displayed on one panel and there is a fault input system.