Calculation of drive axle of GAZ-31105 PP, Drawings

Contents

Introduction

1. Calculation of operating properties

1.1 HIGH-SPEED VEHICLE

1.2 Calculation and construction of traction characteristic of PBX

2. Rear axle calculation

2.2 Check calculation of the main transmission

2.3Conical differential calculation

2.4 Calculation of axle semi-axes

2.5 Calculation of bearings

3. Rear axle assembly instructions

Conclusion

List of literature

Applications

Introduction

Technical characteristics of the car GAZ 31105

Wheel formula 2 * 4;

Loaded weight 1400 kg;

Lifting capacity 490kg;

Total weight 1890kg;

Number of passengers 5;

Overall dimensions, mm 4921 * 1812 * 1422;

Ground clearance 160mm;

Maximum speed 178km/h;

The angle of transverse static stability of the car with a full mass on the stand of 20 degrees;

Minimum turning radius is 6.4m;

Fuel consumption at 90km/h - 7.8l/100km.

Engine: Chrysler DOHC 2.4, 150 hp

Maximum power, kW/crankshaft speed, min-1 112/5500

Maximum torque, N * m/crankshaft speed, min-1 224/4000

Transmission:

Clutch: dry, single-disc, with central pressure spring of diaphragm type.

Clutch disengagement drive: hydraulic.

Gearbox: manual, five-speed.

Cardan transmission: open type, consists of two shafts. Cardan joints on needle bearings;

Type of bridge: rear driving, single-stage, with rigid closed housings of semi-axles.

Main gear: conical, with curved teeth of gears;

Bridge differential: conical, two-satellite;

Semi-axles: fully unloaded type;

Gear ratios of the gearbox:

I transfer 3.91

II transfer 2.31;

III transmission 1,304;

IV transmission 1.00;

V transmission 0.849;

Reverse stroke 3.28;

The gear ratio of the main gear is 3.58;

GAZ31105 is a rear-wheel drive car designed for operation on roads with improved surface. The engine is located under the hood in the front of the car.

GAZ-31105 - a passenger car with a sedan body.

The theme of my course project is the development of rear axle parts using the knowledge obtained during training and their fixation. The transmission scheme of the car is classic for cars, has proven its reliability and technicality, so it was decided not to make serious changes to its design and to calculate the existing transmission scheme.

3. Front Axle Assembly Instructions

The bridge is assembled at a special stand.

Master Bridge Assembly:

- install bearing 45 and adjusting ring 33 on the drive shaft;

- press the collars of bearings 45 and 44 into the axle housing;

- install the drive shaft with adjusting ring 32 into the bridge housing;

- install the bearing 44 on the shaft and press the collar 41;

- install flange (15) on the drive shaft, tighten nut (40) with washer (51);

- assemble the satellites in the differential box, install the axis of the satellites 8;

- press the internal collars of bearings 46 onto the differential housing;

- install the differential in the axle housing, fix it with the help of bearing covers 11, adjust the contact spot of the main pair with the help of nuts 12 and fix their position with stops 13.

- install cover of crankcase (2) with gasket (19), using sealant.

- install bearings of semi-axes 47, fixing them with locking bushings 20 to hot one.

- install collars of semi-axes 42 and semi-axes in the bridge crankcase;

- install brake panels 22 and external seal of axle shaft 26, 43

- assemble the brake mechanism.

Pour TAD17 transmission oil into the main gear case through the oil filling hole.

After assembly, check the bridge for noise, heating and absence of lubrication leak on a special bench.

Conclusion

In this course project, I was engaged in the design and calculation of the rear axle of the GAZ311105 car. During the design, theoretical knowledge obtained during the KiRA course of the 8th semester was applied and fixed. Also, during the course design, we learned to work independently with the educational literature and search for the necessary calculation schemes, and to choose optimal design solutions.

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