Design of application of interlock of drive axle inter-wheel differentials for KamAZ-5320 car

Contents

Contents

Introduction

1 Analysis of inter-wheel interlock structures. Select Lock Type

1.1 Evaluation of the relevance of the use of inter-wheeled interlocks of the rear trolley on the KamAZ car

1.2 Analysis of the main types of locking devices and actuators for actuation of inter-wheel interlocks used on domestic trucks

1.3 Selection of drive type and locking device for the project of application of interlock of inter-wheel differentials on KamAZ vehicle

2 Calculation of cam half-coupling of locking device of inter-wheel differential of KamAZ-5320 car for cutting and crushing

2.1 Determination of efficiency of mechanical transmission of KamAZ vehicle -

2.2 Determination of the total transmission ratio of the KamAZ car - 5320 when driving in 1 reduced gear

2.3 Determination of maximum torque of KamAZ vehicle semi-axle loading - 5320 when rear axle interwheel differential is locked

2.4 Calculation of cam of MKD coupling of KamAZ-43118 car for crushing

2.5 Calculation of half-coupling cam for the cut

Conclusion

List of literature

Job for the Course Project

in the discipline "Chassis of the car. ER and EN "

On the topic "Project for the application of interlock of drive axle inter-wheel differentials for the KamAZ-5320 car"

Course Project Tasks:

Analysis of inter-wheel interlock structures. Select Lock Type

Evaluation of the relevance of the use of wheel interlocks of the rear trolley on the KamAZ-5320 car

Analysis of the main types of locking devices and actuators for actuation of inter-wheel interlocks used on domestic trucks

Selection of the type of drive and locking device for the project of application of interlock of inter-wheel differentials on the KamAZ-5320 car

Calculation of cam half-coupling of locking device of inter-wheel differential of KamAZ5320 car for cutting and crushing

Implementation of the layout drawing of the mechanism of blocking of interwheel differential of the back bridge of the KamAZ5320 car in A1 format

Introduction

The demands placed on heavy trucks are growing relentlessly. The main segment of the age structure of the car fleet of heavy trucks of our country is occupied by KamAZ trucks older than 15 years. In this regard, the problem of modernizing the existing car fleet remains urgent.

This work is devoted to the project, which makes it possible to justify the possibility of using inter-wheeled interlocks of driving bridges on the KamAZ5320 car. The validity of the need for this modernization is confirmed by comparative analysis of structures and mathematical calculations.

Analysis of inter-wheel interlock structures. Select Lock Type

1.1 Evaluation of the relevance of the use of inter-wheeled interlocks of the rear trolley on the KamAZ-5320 car

In modern main trucks, inter-wheel locking is used to increase the car's capabilities when driving on loose and slippery roads [1]. Blocking allows on roads with this type of coating to ensure a confident touching of the car from the spot and the possibility of further movement.

The general-purpose car KamAZ - 5320 in its design does not have interwheel interlocks of driving bridges. The need for interlocks is similar to trunk trucks. This upgrade will improve performance. A car equipped with a lock will have great capabilities when driving on roads with a loose and slippery surface. According to the means of application of modernization, a higher level of operational reliability will be ensured.

The use of inter-wheel locking will make it possible to carry out more complex transport work. Will reduce driver fatigue. Will provide the driver with confidence when driving in sharply changed road conditions. A higher level of operational reliability will be ensured due to the possibility of eliminating the negative loading that occurs on the axis of the differential satellites provided that the car slips in place for a long time. Elimination of loading will reduce the likelihood of expensive repairs, and will also extend the life of the car as a whole.

1.3 Selection of drive type and locking device for the project of application of interlock of inter-wheel differentials on KamAZ-5320 car

Considering the positive and negative aspects of the designs of locking devices and drives, we will determine the most suitable for the design application on the prototype. The main selection criteria are reliability and processability.

A locking device such as a cam clutch has proven to be highly reliable. Electro-pneumatic drive, due to the ease of use, has become widespread. Today, the modern KamAZ5490 main truck has in its design the locking of the drive axle interwheel differential is precisely the cam type of the locking device with an electric pneumatic drive. The experience of application has shown that this design is as reliable and technological as possible. We take this design as the basis for the development of a project for the application of interlock of inter-wheel differentials (MKD) of the KamAZ - 5320 car.

Conclusion

During the course project, an analysis of the designs of blocking devices and actuators for switching on inter-wheeled interlocks used on domestic trucks was carried out. The cam half-coupling was calculated for cutting and crushing, during which it was concluded that the selected coupling meets the specified requirements. KamAZ-5320 vehicle interwheel locking project is justified.

КАМАЗ - 5320 08.01. 4.14.cdw

КАмаЗ - 5320000.spw