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Speed gearbox
Shifting is movement of gears which are alternately in engagement with other gears or locking of gears on the shaft with by using synchronizers. If between the leading and driven gear to place the intermediate gear, and through it to transmit torque, the driven gear change neath the direction of movement reversed. The synchronizers for you- sravnivayut the frequency of rotation of the gears included and Blo- ciruit one with the output shaft. Control of movement cutting gears or synchronizers carries out the driver tel with the clutch disengaged. In the General case the transmission consists of: • Carter; • drive shaft with a gear; Diagram transmission • driven shaft; • intermediate shaft; • the axis of the reverse gear; • block mobile gears; • the mechanism of a gear change. Gear housing cast iron, shafts and neck- stubble — steel. The installation shafts are made for the roles is plated bearings. Carter has top and side cover. In the bottom wall of the crankcase has a hole for draining waste oil, and in a side — hole for fill the box with fresh oil. Four-speed gearbox In WEL- nom engaged gear are leading and intermediate precise shafts, second gear and third gear Prome- safely and driven shafts. Passes include physically move the reduction gear of the first transmission and synchronizer and ass- tions the course is activated by movement of the unit consisting of two gears located on a separate axis. First gear is activated by moving back sixth is Terni the first transmission driven shaft. Its outer teeth are engaged with a gear of the first transmission intermediate accurate shaft Second gear is activated by moving the gear the first transmission forward. Her inner teeth are for- Ceplene end with a crown gear of the permanent hook- tion in second gear, thus rigidly connecting with WEDO- MYM shaft Third gear is activated by moving back IUF- you synchronizer. The internal teeth of the coupling are included in the per- Ceplene with the face crown gear permanent hook- ing the third gear, rigidly connecting it with the slave WA- scrap Fourth gear is activated by moving forward the coupling of the synchronizer, its teeth are engaged with a ven- ring drive shaft connecting driving and driven shafts. Intermediate shaft in the transfer of torque is not partic- there The inclusion of the fourth transfer The reverse includes moving the block of gear wheels reversing the axes to enter into engagement with the gear- mi first transmission intermediate and driven shafts, The reverse gear is engaged The inclusion of third and fourth gear is when you move the synchronizer which re- Yong as follows. On the outer surface of the step- s, having teeth and grooves, set sliding coupling, associated with the fork gear shifts. In the slots of the hub there are floaters, which are pressed with spring- mi rings to the teeth of the moving clutch. Two rings with conical surfaces when you switch gear contact- touch with the respective conical surfaces gears include drive shaft and transmission. Due emerging friction the speed of rotation of the gear and the muf you equalize. Then there is the inclusion of relevant setup portion of the transmission gear clutch synchronizer. The movement of the gears when turning on and off gear box is made by a mechanism of PE- clucene , which consists of: • arm; • sliders; • forks shift; • locks; • locks; • fuse reversing. The mechanism on the gearbox To enable the transfer to move the upper end of the lever in a certain position, the lower Ko finally the lever through pass-through moves the head slider with a fork, and gear to enable transmission selected. To retain the gears in gear box included the neutral position or serve the ball fixato- ry. To move the slider when switching to re- villas, you need to make an effort sufficient for you- telkibanya the ball from the recess of the retainer. To prevent simultaneous starting of two gear, apply the lock, which is made in the form balls or rods placed in a horizontal the channel between the sliders. Move one of crawling- new impossible until some of the ball or the end of the rod will not go into a recess adjacent the slide transferring and not paralyze it. To prevent reversing with DWI terms forward use a fuse that time substituted in the translated head. Its design makes the who possible reverse gear is engaged only when a signifi- Mr. force applied to the lever or move the lever with DWI tion. In some car models use remote- innovative mechanical drive gear, which consists of a system of levers and rods connected to lever, gearshift control, is- tion on the lid of the gearbox. In multi-shaft gearboxes laid used use a step-up gear (divider) with the aim of improving continuing traction power of the vehicle. Management of fur- the mechanism of a gear change of the divider is pneumatic system When enabled, re- locates on the gear lever in the upper or the lower position, the cable moves the spool of valve control tion and compressed air via a pressure reducing valve under- usual to the diffuser, setting it WA- lotnik in one of two extreme positions. When pressed the clutch the emphasis of the follower opens the valve the inclusion of the divider through which air enters one or another cavity of the power cylinder, moving the por- Shen stem and fork synchronizer divider. |
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