Reconstruction of the section for electrical equipment - Design of road transport enterprises

Contents

Introduction

1 Initial data

2 Calculation of the Maintenance Production Program

2.1 Selection and adjustment of standard periodicity

Maintenance and resource mileage

2.2 Determination of the number of write-offs and maintenance per car per cycle

2.3 Determination of the number of maintenance on

group (fleet) of cars for the year

2.4 Definition of diagnostic impact program

for the entire park for the year

2.5 Definition of daily maintenance and diagnostics program

cars

3 Calculation of annual scope of work and number of production workers

3.1 Selection and adjustment of normative labour intensity

3.2 Annual scope of maintenance and maintenance work

3.3 Distribution of maintenance and maintenance volume by production

zones and sites

3.4 Calculation of the number of production workers

3.5 Determination of the number of auxiliary workers and ITR

4 Process calculation of production areas, areas and warehouses

4.1 Selection of the method of maintenance and maintenance of cars

4.2 Calculation of the number of individual maintenance posts

4.3 Calculation of the number of maintenance posts

4.4 Calculation of waiting posts

5 Space area calculation

5.1 Calculation of areas of maintenance and maintenance areas

5.2 Calculation of production areas

5.3 Calculation of storage and auxiliary areas

5.4 Calculation of car storage area (parking area)

5.5 Calculation of areas of administrative and domestic premises

6 Disposal of associated materials and secondary resources

7 Space-planning solutions of the enterprise

7.1 Project Feasibility Study

7.2 Enterprise Master Plan

7.3 Production building

7.4 Purpose of electrical equipment repair area

7.5 Selection of equipment for electrical equipment repair area and

its layout

Conclusion

Literature

Introduction

The most important condition for the high-performance and uninterrupted operation of the rolling stock of road transport is the provision of its modern production and technical base for the repair of cars, units and the restoration of worn out parts. The main tasks of repair production are the further development of centralized repair of machines and equipment as the most important prerequisite for the introduction of progressive technological processes that ensure an increase in the quality and efficiency of repair of complex modern equipment.

A special place in maintaining machines and equipment in operational condition is occupied by ongoing repairs, the task of which is to restore the lost consumer value of labor funds due to wear and tear.

At the designed enterprise, only maintenance and maintenance of cars is carried out.

Cars are repaired by an aggregate method by replacing parts, assemblies, mechanisms and units with new or previously repaired ones.

The process of repairing cars envisages proper provision of the enterprise with spare parts, fasteners, normals and automotive accessories of industrial production.

The main task of the design is to create the most advanced in terms of technical level and the most economical in terms of capital costs and operational indicators of enterprises, which is especially relevant in a market economy.

The purpose of the project is to justify the size of the required areas, the amount of equipment and the technological relationship between production departments and equipment.

The main direction of design is the typification of design solutions based on the unification of volume planning, structural and technological solutions, assemblies, structures and products. The design takes into account, as one of the main areas of technological progress, the reduction of labor intensity of works, equipping workplaces and posts with high-performance equipment and on this basis a sharp increase in the level of mechanization of maintenance and repair of rolling stock.

The construction of the enterprise is carried out by modern methods from progressive construction materials using unified prefabricated reinforced concrete structures.

Calculation of the Maintenance Production Program

The ATP maintenance production program is characterized by the number of technical services planned for a certain period of time (year, day).

Seasonal maintenance (CO), carried out 2 times a year, is usually combined with TO-2 or TO-1 and is not taken into account as a separate type of planned service when determining the demand program.

For TR performed on demand, the number of impacts is not determined. Planning of rolling stock downtime and scope of work in TR is carried out based on the corresponding specific standards for 1000 km of mileage.

The production program for each maintenance type is usually calculated for 1 year. The program serves as the basis for determination of annual quantity of maintenance and maintenance works and number of workers.

The definition of the production program is based on the so-called cycle calculation method, which is used in ATP design practice. The cycle refers to the mileage of a car to its CG or to write-off, i.e. resource mileage.

In principle, the methodology for calculating the maintenance production program for mileage to KR and for resource mileage is the same. No provision is made for all types of rolling stock except for RC buses. Given this, this section discusses the method of calculating the maintenance program for the mileage of cars before write-off, that is, the resource mileage is taken as a cycle.

The cycle method for calculating the maintenance production program provides:

selection and correction of periodicity TO1, TO-2 and resource mileage for the rolling stock of the designed ATP;

calculation of number THAT on 1 car (road train) for a cycle;

calculation of the technical readiness factor and on its basis the calculation of the annual mileage of cars, and then the number of maintenance per group (fleet) of cars.

With a different type of fleet, the program is calculated according to car models within technologically compatible groups of cars.

Calculation of annual scope of work and number of production workers

The annual scope of work for ATP is defined in man-hours and includes the scope of work for ES, TO1, TO-2, TR, as well as the scope of auxiliary work of the enterprise. Based on these volumes, the number of working production zones and sections is determined.

Calculation of annual volumes of EO, TO-1 and TO-2 is made based on the annual production program of this type and labor intensity of maintenance. The annual TR volume is determined based on the annual mileage of the fleet of cars and the specific labor intensity of the TR per 1000 km of mileage.

Disposal of associated materials and secondary resources

Storage of metal wastes produced from ferrous metals (rejected parts, assemblies and assemblies of cars, sheet cutting, chips) should be provided on open areas with hard coating, equipped with racks, stalls, crate, in accordance with GOST 278786.

The amount of waste from ferrous metals should be taken in the amount of 60% of the weight of the written off car.

Storage of wastes produced from non-ferrous metals, as well as waste materials, which are mandatory when receiving new ones (batteries, cylinder blocks, block heads, bearings, etc.), should be provided in closed rooms. Non-ferrous metal wastes, including lead rafts, shall be stored in groups in accordance with GOST 163978.

Storage of non-metallic wastes of production (paper, cardboard, plastics, etc.) should be provided in open areas with a hard coating equipped with appropriate packaging. Their disposal should be provided in consultation with local sanitary authorities.

Distance from sites for storage of non-metallic production wastes to buildings and structures of ATP should be taken at least 15 m.

Spent motor and transmission oils are subject to collection, storage and shipment for subsequent regeneration at specialized enterprises in accordance with the "Temporary Instruction on the Collection, Reception, Storage, Rational Use and Transportation of Spent Petroleum Products," approved by the USSR State Nab.

Mixing of spent motor and transmission oils in tanks and pipelines is not allowed.

It is allowed to install one pump for the shipment of spent motor and transmission oils with separate piping systems.

The used oil shipping device shall allow easy filling of tank trucks and other mobile containers.

Enterprise Space Planning Solutions

7.3 Production building

Production housing is of frame type with 4x7 column mesh.

The height of the room is 3 meters.

7.4 Purpose of electrical equipment repair area

In the electrical equipment repair area, maintenance and maintenance of devices, electrical equipment coming from ATP units, car overhaul shop, fleet, engine overhaul shop are carried out, as well as a certain amount of goods sold through an exchange point or dealership.

The revolving fund of electrical equipment at ATP is created due to the receipt of new, as well as suitable devices and units from decommissioned machines. Employees of the intermediate warehouse issue a new or repaired device after the repair of faulty devices and units of the same name and quantity as those issued.

Faulty electrical equipment coming to the site from the intermediate warehouse is distributed to workplaces, cleaned from dust and dirt, disassembled into units and parts. Parts without windings are washed in the machine with ML preparation solution, blown with compressed air and thoroughly rubbed.

After cleaning, parts are defective, their basic geometric dimensions and electrical parameters are checked. In accordance with the technical condition of the parts, they are sorted into suitable, requiring repair and unsuitable. Suitable parts are used in assembly, requiring repair - repaired. Generators, starters for major repairs are sent to specialized repair plants.

Before assembly, parts are directed to painting section.

Instruments and electrical equipment units are assembled from repaired, suitable, new and painted parts at specialized posts. Electrical equipment is adjusted and tested on test benches.

After assembly, adjustment and testing, instruments and units of electrical equipment requiring painting are sent to the painting area. From there, the repaired products are handed over to an intermediate warehouse.

Conclusion

In this work, a technological calculation of a motor transport enterprise was carried out. The calculation carried out the following:

calculation of the annual and daily maintenance, TR and diagnostics program;

calculation of labour intensity of maintenance, TR and diagnostics works;

calculation of annual scope of work for maintenance, maintenance and diagnostics;

distribution of work by posts and sites;

calculation of the number of main production workers, auxiliary workers, management, ITR, employees, MOS and security;

calculation of the number of posts and sites;

calculation of areas of posts, plots;

Calculation of storage areas

calculation of areas of closed and open storage of cars;

calculation of the area of administrative and domestic premises;

electrical equipment repair area layout was developed.