DP RECONSTRUCTION OF ACCUMULATOR COMPARTMENT ATC RUP MTZ

Contents

Contents

Introduction

1 General part

1.1 Characteristics of the enterprise

1.2 Characteristics of the division

1.3 Project Feasibility Study

2 Design and processing part

2.1 Selection and justification of the calculation

of the list

2.2 Calculation of Annual Production Program

2.2.1 Selection and correction of maintenance periodicity

and vehicle mileage to KR

2.2.2 Calculation of annual vehicle mileage

2.2.3 Calculation of the number of services per year

2.2.4 Calculation of the daily maintenance program for cars

2.3 Calculation of annual scope of work

2.3.1 Correction of maintenance and maintenance labor intensity

2.3.2 Calculation of annual scope of maintenance, maintenance and auxiliary works,

self-service works

2.4 Calculation of the number of production workers

2.5 Manufacturing Department Design

2.5.1 Number of working posts

2.5.2 Selection of equipment and process equipment

2.6 Area calculation

3 Organizational part

3.1 Organization of Production Management

3.2 Process in Division

3.3 Distribution of workers by specialties, qualifications and

jobs

3.4 Preparation of Job Instruction

4 Occupational and environmental protection

4.1 General Safety Issues

4.2 Safety precautions

4.3 Electrical Safety

4.4 Sanitary and hygienic requirements

4.5 Fire Safety

4.6 Environmental Protection

5 Design Part

5.1 Purpose and scope of the accessory

5.2 Device and operating principle of the accessory

5.3 Calculation of accessory

6 Economic part

6.1 Calculation of the amount of capital investments

6.2 Calculation of annual production costs

6.3 Calculation of annual economic efficiency

Conclusion

List of sources used

Appendix A. Specification

Introduction

The purpose and task of the diploma design is to summarize and consolidate the theoretical and practical knowledge obtained during the training period, develop the experience of independent work with regulatory and technological documentation, and form a skill in the design of a motor vehicle enterprise.

Improving the design of motor transport enterprises is necessary to improve the production and technical base of the enterprise, to bring it into line with the needs of dynamically developing road transport. At the same time, a high technical level and high economic efficiency of the designed facilities should be provided not only today, but also for the future.

Road transport is currently developing at a rapid pace. This development of vehicles has led to certain problems, which require a scientific approach and significant material costs. The main ones are increasing the capacity of streets, building and arranging roads, organizing parking lots and garages, trading enterprises for the sale of cars and spare parts, ensuring traffic safety and environmental protection, building car maintenance stations, warehouses, gas stations and other enterprises.

The main task of the vehicle fleets is the timely and high-quality transportation of goods. In order to fulfill the task, it is necessary that the rolling stock is idle for maintenance and repair as little as possible, which in turn depends on the qualifications of the ITR and workers and on the equipment.

The operation of a technically defective car is unprofitable (the possibility of failure increases sharply, operating costs increase), harmful (environmental pollution increases) and dangerous for the owner and other members of society, especially if these failures are associated with car systems that affect traffic safety. Untimely, irregular and poor-quality preventive maintenance and repair operations cause increased wear and tear of parts and units and their premature failure.

In view of the above, the Minsk Tractor Works motor transport shop is no exception. The rolling stock of the base is physically worn out and there is a need to purchase new cars. Therefore, with the advent of new vehicles, it is necessary to train ITR and workers to carry out all types of maintenance and repair work. It is necessary to redesign the production premises, since the new cars differ in overall dimensions and technical characteristics, the labor intensity of work on types of maintenance and repair will change. When updating the fleet of cars, the production base must be equipped with equipment, equipment and tools that will allow for high-quality and timely maintenance, diagnosis and repair of rolling stock.

General part

Project Feasibility Study

By analyzing the data collected during the pre-diploma practice period, the main shortcomings can be distinguished:

- significant wear and tear of rolling stock;

- obsolete existing equipment;

- lack of necessary equipment and technological equipment;

- significant scope of work.

On the basis of the above, I consider it advisable to carry out the reconstruction of the battery compartment, the renewal of the fleet rolling stock, at the expense of MAZ family cars. It is necessary to carry out organizational and technical measures aimed at improving the organization and management of production, which contribute to increasing labor productivity and the quality of work performed. It is also necessary to replace obsolete, low-performance, energy-intensive and worn-out equipment, production equipment and accessories with modern, high-performance equipment for equipping posts and work places. Due to the lack of equipment, production equipment and equipment, the duration of downtime in maintenance and repair increases. The availability factor and, accordingly, the output factor are reduced. Maintenance and repair quality is also reduced. As a result of the above, the unit cost increases.

Based on the analysis, additional equipment should be installed in the reconstructed unit. The list of equipment and process accessories is given in the calculation and processing part.

Design and processing part

2.1 Selection and justification of the list to be calculated

Taking into account the policy of enterprises, as well as the significant depreciation of the rolling stock of the motor depot, there will be a gradual replacement of obsolete models of rolling stock with new ones. Although the resulting trend towards the ageing of the rolling stock will continue, but it is assumed that the obsolete and used-up GAZ53, KamAZ-5410, ZIL130 cars will be replaced by MAZ family cars, LAZ 695 buses will be replaced by MAZ buses. It is also planned to replace MAZ cars that have developed a depreciation period with new ones.

It is assumed that the list number of cars will not change and will remain the same, about 88 units.

2.7 Subdivision Planning

When designing battery office planning solutions, the basic principles of vehicle enterprise space planning were taken into account.

The area of ​ ​ the battery compartment is 21 m2.

The height of the room is 5.4 m.

ATC RUP MTZ is a prefabricated structure of paracpanels, for which a 6 × 24 m column grid is used.

The thickness of the paracpanels is 250 mm.

The dimensions of the columns are 400 × 400 mm.

Doors in production rooms have a height of 2.4 m and a width of 1.5 m.

The windows in the production rooms are 4 × 2.4 m in size.

The layout of the battery compartment after reconstruction is shown on the A1 format drawing.

Organizational Part

3.1 Organization of Production Management

In order to improve the organization and management structure of the technical service, MTZ RUP organized work according to the scheme of a centralized production management system.

The centralized production control system is based on the technological principle, the essence of which is that the formation of production divisions of the enterprise is based on the completed technological processes of technical impacts on rolling stock. Production Management - Central (PCO).

Subdivisions performing homogeneous types of work are combined into production complexes for ease of management. Information exchange between the control center and all production units is carried out by a set of communication equipment.

The operational management of the production complexes is carried out by the MCC, which consists of two groups: control room and information processing and analysis.

The introduction of a centralized system for managing the production of maintenance and maintenance of rolling stock makes it possible to ensure rational organization of labor of repair sites, improve technical and economic indicators.

3.3 Distribution of workers by specialties, qualifications and workplaces

The battery compartment has 1 working 4 discharges.

The department is equipped with the necessary equipment, tools and equipment. Before the start of the working day, the worker must prepare his workplace, spread out the tool and tooling. After completion of work, remove your workplace. The work of the locksmith and mechanical department is supervised by the master, who at the beginning of the shift issues a task, and distributes the work received during the day.

3.4 Preparation of Job Instruction

For the most rational organization of maintenance and repair of cars, its units and systems, process charts are compiled. One of the process charts used in the accumulator compartment is shown on sheet 3 of the graphic part of the diploma project.

Design Part

5.1 Purpose and scope of the accessory.

Mechanized battery storage rack is used in motor vehicle enterprises and car maintenance stations. It is installed in the battery compartment and is designed to store batteries. Mechanized rack drive is used to install storage batteries on rack shelves.

5.2 Device and operating principle of the accessory.

The battery is mounted on the lift. The electric motor is switched on and the battery on the hoist is lifted to the desired shelf of the rack. Engine is turned off and accumulator battery is pushed onto rack shelf.

Conclusion

In carrying out this diploma project, skills in the design of motor transport enterprises were formed. Namely, when calculating the annual scope of maintenance and repair work; when calculating the number of production workers; during planning and selection of equipment and process equipment of the battery compartment. Labor safety skills were also acquired at workplaces in the battery department of an automobile enterprise.

In carrying out the diploma project, the department was equipped with technological equipment that made it possible to carry out the full range of works provided for by the current repair of the PBX: repair, charging, recharging and maintenance of the batteries of cars serviced at the enterprise.

The positive result of acquired knowledge and skills is a positive economic effect when designing the battery department of MTZ. The positive economic effect was achieved by equipping the battery compartment with repair equipment and equipment that allows better performance of all types of work. The payback period of the project is 2.5 years.