The light vehicle transmission that bearing capacity is big
Technical field
The utility model relates to speed changer and makes field, the specifically big light vehicle transmission of bearing capacity.
Background technique
The light vehicle transmission of existing domestic production, the ubiquity gear is unintelligible, and the shelves difficulty is plucked in gear shift, bearing capacity is little, thereby shortened the working life of speed changer, influenced comfort property and unfailing performance that speed changer is handled, reduced the Economy and the adaptability of car load.
Summary of the invention
Technical assignment of the present utility model is at above deficiency, provides the bearing capacity that a kind of gear is clear, bearing capacity is big big light vehicle transmission.
The technological scheme that its technical problem that solves the utility model adopts is: this speed changer comprises front case and rear case, in the housing that front case and rear case constitute one, two and jack shaft are installed, two top is provided with a second gear fork shaft, three fourth gear fork shafts, five reverse gear fork shafts and gear-selecting-shifting mechanism assembly, two below is provided with jack shaft, and a second gear shift fork and a second gear shifting block are installed on the second gear fork shaft; Three fourth gear shift forks and three fourth gear shifting blocks are installed on the three fourth gear fork shafts; Five reverse speed forks and five reverse gear shifting blocks are installed on the five reverse gear fork shafts; The gear-selecting-shifting mechanism assembly is installed in the top of rear case by selecting gear shift support component, stop screw one and stop screw two, and the side of gear-selecting-shifting mechanism assembly is equipped with shift selection arm component, gear shift arm component, gear selecting guide pin bushing, cover plate and dust-proof cover.
Described gear-selecting-shifting mechanism assembly comprises guide shaft, interlock board, gear shift shifting block and reverse gear lock, and the middle part of guide shaft is equipped with interlock board and reverse gear lock, and five reverse gear return springs are installed on the right side guide shaft of interlock board, on the guide shaft in the interlock board gear shift shifting block is installed; On the guide shaft between interlock board and the reverse gear lock elastic cylindrical pin two is installed, on the guide shaft in reverse gear lock left side split washer, gear selecting pad, a second gear return spring, torsion spring seat, elastic cylindrical pin one and torsion spring is installed from left to right.
Three fourth gear synchronizer assemblies, three-range transmission, intermediate gear, a second gear synchronizer assembly, one grade of gear, reverse gear, five reverse gear synchronizer assemblies and five grades of gears are installed on described two from left to right; Commonly engaged gear, three-range transmission-jack shaft and five grades of gear-jack shafts are housed on the jack shaft of two belows from left to right.
Described one grade of gear, intermediate gear and jack shaft engagement, three-range transmission and three-range transmission-jack shaft engagement, five grades of gears and five grades of gear-jack shaft engagements, reverse gear and reverse idler gear engagements.
The light vehicle transmission that bearing capacity of the present utility model is big is compared with prior art, has reasonable in design, characteristics such as gear is clear, bearing capacity is big, shifting light and flexible, effectively raises ride comfort.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing 1 is the structural representation of the big light vehicle transmission of bearing capacity.
Accompanying drawing 2 is the side view of accompanying drawing 1.
Accompanying drawing 3 be in the accompanying drawing 1 B to structural representation.
Accompanying drawing 4 be in the accompanying drawing 2 D to structural representation.
Accompanying drawing 5 is a gear-selecting-shifting mechanism assembly structure schematic representation.
Among the figure: 1, one, 2, front case, 3, three fourth gear shift forks, 4, one second gear shift fork, 5, rear case, 6, five reverse speed forks, 7, reverse gear, 8, five grades of gears, 9, two, 10, jack shaft, 11, five grades of gear-jack shafts, 12, five reverse gear synchronizer assemblies, 13, reverse idler gear, 14, one grade of gear, 15, one second gear synchronizer assembly, 16, intermediate gear, 17, three-range transmission-jack shaft, 18, three-range transmission, 19, three fourth gear synchronizer assemblies, 20, commonly engaged gear, 21, the shift selection arm component, 22, select gear shift support component, 23, gear shift arm component, 24, the gear selecting guide pin bushing, 25, dust-proof cover, 26, cover plate, 27, one second gear fork shaft, 28, one second gear shifting block, 29, three fourth gear fork shafts, 30, stop screw one, 31, stop screw two, 32, five reverse gear fork shafts, 33, the gear-selecting-shifting mechanism assembly, 34, five reverse gear shifting blocks, 35, three fourth gear shifting blocks.
33-1, split washer, 33-2, gear selecting pad, 33-3, a second gear return spring, 33-4, torsion spring seat, 33-5, torsion spring, 33-6, reverse gear lock, 33-7, interlock board, 33-8, gear shift shifting block, 33-9, five reverse gear return springs, 33-10, guide shaft, 33-11, elastic cylindrical pin one, 33-12, elastic cylindrical pin two.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The light vehicle transmission that bearing capacity of the present utility model is big, its structure comprises front case 2 and rear case 5, be equipped with one 1, two 9 and jack shaft 10 in the housing that front case 2 and rear case 5 constitute, two 9 top is provided with a second gear fork shaft 27, three fourth gear fork shafts 29, five reverse gear fork shafts 32 and gear-selecting-shifting mechanism assembly 33, two 9 below is provided with a second gear shift fork 4 and a second gear shifting block 28 is installed on jack shaft 10, the one second gear fork shafts 27; Three fourth gear shift forks 3 and three fourth gear shifting blocks 35 are installed on the three fourth gear fork shafts 29; Five reverse speed forks 6 and five reverse gear shifting blocks 34 are installed on the five reverse gear fork shafts 32; Gear-selecting-shifting mechanism assembly 33 is installed in the top of rear case 5 by selecting gear shift support component 22, stop screw 1 and stop screw 2 31, and the side of gear-selecting-shifting mechanism assembly 33 is equipped with shift selection arm component 21, gear shift arm component 23, gear selecting guide pin bushing 24, cover plate 26 and dust-proof cover 25.
Gear-selecting-shifting mechanism assembly 33 comprises guide shaft 33-10, interlock board 33-7, gear shift shifting block 33-8 and reverse gear lock 33-6, the middle part of guide shaft 33-10 is equipped with interlock board 33-7 and reverse gear lock 33-6, five reverse gear return spring 33-9 are installed on the right side guide shaft 33-10 of interlock board 33-7, on the guide shaft 33-10 in the interlock board 33-7 gear shift shifting block 33-8 are installed; On the guide shaft 33-10 between interlock board 33-7 and the reverse gear lock 33-6 elastic cylindrical pin two 33-12 are installed, on the guide shaft 33-10 in reverse gear lock 33-6 left side split washer 33-1, gear selecting pad 33-2, a second gear return spring 33-3, torsion spring seat 33-4, elastic cylindrical pin one 33-11 and torsion spring 33-5 are installed from left to right.
Three fourth gear synchronizer assemblies 19, three-range transmission 18, intermediate gear 16, a second gear synchronizer assembly 15, one grade of gear 14, reverse gear 7, five reverse gear synchronizer assemblies 12 and five grades of gears 8 are installed on two 9 from left to right; Commonly engaged gear 20, three-range transmission-jack shaft 17 and five grades of gear-jack shafts 11 are housed on the jack shaft 10 of two 9 belows from left to right; One grade of gear 14, intermediate gear 16 mesh with three-range transmission-jack shaft 17 with jack shaft 10 engagements, three-range transmission 18, five grades of gears 8 and five grades of gear-jack shafts 11 engagements, reverse gear 7 and reverse idler gear 13 engagements.
Its processing and fabricating of light vehicle transmission that bearing capacity of the present utility model is big is very simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characteristics of specification, be the known technology of those skilled in the art.