4-2-1-opisanie-konstrukcii.html
4.2.1. The design descriptionThe transmission will transform a twisting moment transferred from the engine, on size and a direction, for maintenance of optimum speed and passableness of the car, for the most economic work of the engine and for movement of the car by a backing. The transmission separates the engine and transmission during a stop and parking of the car and at its movement by inertia with working engine.
Transmission details are placed in картере which bolts fastens to a back part of the engine.
The twisting moment from the engine through coupling is transferred to a primary shaft of a transmission. A secondary shaft the transmission transfers a twisting moment through differential to drive shaft. Transfer inclusion is carried out by moving sliding муфты the synchronizer. As a result the gear wheel rigidly incorporates to transmission shaft.
The mechanism of blocking of switching on a reverse gear
This mechanism prevents switching directly from the fifth transfer on back at car movement. For switching prevention on a reverse gear in neutral position the directing bolt interferes with a switching cam.
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Fig. 4.22. Work of the mechanism of blocking of switching from 5th transfer on a reverse gear
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In case of switching on the fifth transfer the shaft of switching and a transfer choice turns to the right, thereby the cam keeps away aside from a directing bolt and moves upward returning a spring. Therefore switching in a reverse gear in this position is impossible because of a directing bolt ( fig. 4.22).
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Fig. 4.23. Work of the mechanism of blocking of switching from neutral position on a reverse gear
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At switching from neutral position of the lever on a reverse gear between a heel and a reverse gear the switching cam turns on the left and switching becomes possible ( fig. 4.23).
Differential
The differential is united with картером transmissions and established on the chassis together with the engine. It changes a direction of giving of capacity and increases a twisting moment reducing speed.
The main transfer is established in parallel power shafts and is косозубой a cylindrical tooth gearing.
Transmission specifications are resulted in tab. 4.4.
Table 4.4 transmission Specifications
The description
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Rating value
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Maximum permissible value
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Transfer number
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The first transfer
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3,818
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The second transfer
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2,210
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The third transfer
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1,423
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The fourth transfer
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1,029
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The fifth transfer
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0,837
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Backing transfers
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3,583
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The general transfer number
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4,444
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Oil capacity, l
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2,1
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Classification трансмиссионного oils
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78W-85
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Width шпоночной flutes of a ring of the synchronizer, mm:
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1st transfers
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8,2
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8,6
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2nd, 3rd, 4th transfers
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9,6
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10,0
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5th transfers
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9,4
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9,8
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Thickness of the end of a plug of switching, mm:
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Plug of switching of 1st - 2nd transfers
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8,7
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8,1
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Plug of switching of 3rd - 4th transfers
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7,8
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7,2
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Plug of switching of 5th transfer
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7,8
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7,2
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Backlash between a gear wheel and a synchronizer ring, mm
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1,0
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0,5
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Backlash between a holder and a switching plug, mm
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0,2-0,6
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1,0
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Люфт support of a lateral gear wheel of differential, mm
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0,05-0,33
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-
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Transfer number of a gear wheel of a speedometer (conducted/conducting), mm
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17/18
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-
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The moments of an inhaling of a transmission are resulted in tab. 4.5.
Table 4.5 the Moments of an inhaling of a transmission, Нм
Bolt of fastening of a shaft of switching of 5th transfer / of transfer of a backing
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10-16
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Nut of the switch of a lantern of a backing
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15-18
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Nut of fastening of a gear wheel of the fifth transfer on a secondary shaft
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60-80
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Bolt of fastening of the gauge of position of a cranked shaft
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5-8
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Bolt of fastening of a gear wreath of differential
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80-100
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Bolt of fastening of a forward arm of the engine (from outside the block of cylinders)
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35-41
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Bolt of fastening forward демпферной engine plugs (from outside a cross-section beam)
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35-41
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Bolts of fastening forward демпферной engine plugs (from outside a cross-section beam)
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45-55
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Bolt / a nut of fastening forward демпферной engine plugs (from outside an arm)
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68-83
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Nut of fastening of a reception exhaust pipe (from outside a final collector / from outside the muffler)
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25-35
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Bolt of fastening of a casing of management of a gear change
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18-28
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Bolt of fastening of the lever a gear change
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4-7
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Bolt of fastening of a shaft of switching of 3rd - 4th transfers
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10-16
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Bolt of fastening of a shaft of switching of 1st - 2nd transfers
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10-16
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Stopper oil plum
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25-30
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Stopper of check of level of oil
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36-54
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Bolts of fastening of an arm of the bottom hose of a radiator
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8-15
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Bolt of fastening of a shaft of a free gear wheel of a backing
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18-28
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Bolt of fastening of the lever of switching of a backing
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18-28
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Nut of fastening of a cable of switching (from outside the switching lever)
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8-12
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Bolt of fastening of the lever of switching
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18-28
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The screw of fastening of a lateral cover
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6-7
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Bolt of fastening directing switchings
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18-28
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Bolt of blocking of switching
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18-28
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Bolt of fastening of a lateral cover
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8-12
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Bolt of fastening of a conducted gear wheel of a speedometer
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4-7
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Bolt of fastening of the engine of a starter
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18-28
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Fastening bolt картера transmissions
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15-22
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Bolt of fastening of the left cover картера transmissions
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8-12
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The bottom bolt and nut of fastening of a transmission (from outside the engine)
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55-65
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Bolt of fastening of a transmission (from outside bodies)
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45-55
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Bolt and nut of fastening of a transmission from outside transmissions
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55-65
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The top bolt of fastening of a transmission (from outside the engine)
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55-65
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Bolt of the bottom cover of a transmission
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35-55
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