CN201651251U - Medium-power wheeled tractor transmission case - Google Patents
Medium-power wheeled tractor transmission case Download PDFInfo
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- CN201651251U CN201651251U CN2010201356133U CN201020135613U CN201651251U CN 201651251 U CN201651251 U CN 201651251U CN 2010201356133 U CN2010201356133 U CN 2010201356133U CN 201020135613 U CN201020135613 U CN 201020135613U CN 201651251 U CN201651251 U CN 201651251U
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Abstract
A medium-power wheeled tractor transmission case comprises a gearbox casing, a rear axle casing, a main clutch shaft assembly, a main variable speed driving shaft assembly, an idler shaft assembly, a main variable speed driven shaft assembly, an auxiliary variable speed gear shaft assembly, a creeper speed gear shaft assembly, a small bevel gear shaft assembly, a reversing operating assembly, a main variable speed operating assembly and an auxiliary variable speed operating assembly. The gearbox casing is connected with the rear axle casing via a fastener, the main clutch shaft assembly, the main variable speed driving shaft assembly, the idler shaft assembly, the main variable speed driven shaft assembly, the reversing operating assembly and the main variable speed operating assembly are assembled in the gearbox casing, the auxiliary variable speed gear shaft assembly, the creeper speed gear shaft assembly, the small bevel shaft assembly and the auxiliary variable speed operating assembly are assembled in the rear axle casing, shafts in the gearbox casing and the rear axle casing are in a spatial arrangement form so that the exteriors of the gearbox casing and the rear axle casing are in the section shape of flat octolateral columns, thereby raising a distance between each of the gearbox casing and the rear axle casing and the ground, increasing height of ground clearances, and improving passing property of tractors.
Description
Technical field
The utility model belongs to the tractor field, relates to a kind of middle power wheeled tractor transmission case.
Background technique
At present, at home on the various middle power wheeled tractors of Sheng Chaning, transmission case mostly is 8+4 gear (that is: 8 forward gears and 4 retainings that fall back), 8+2 gear (that is: 8 forward gears and 2 retainings that fall back), perhaps 8+8 gear (that is: 8 forward gears and 8 retainings that fall back), advance the operating speed scope at 2～35km/h, gear is few, and it is big respectively to keep off differential ratio, the operating speed narrow range is difficult to satisfy increasingly extensive agricultural machinery and implement, the demand of engineering and hauling operation is simultaneously because the restriction of space factor in the power mechanism housing in the tradition, cause gearshift and commutation all to adopt engagement cover or sliding gear form, gearshift power is big, smooth gear shifting difference and be difficult for to handle, and axle system arranges that generally adopting with the engine crankshaft is the center in the conventional gear box in addition, downward vertical direction layout form (as shown in Figure 1), directly cause the mechanism housing exterior cross-section to be vertical rectangular, lower housing portion is nearer apart from ground, and crack, ground height is low, big by radius, the field passing ability is relatively poor.
The model utility content
The purpose of this utility model is to provide that a kind of velocity range is wide, respectively to keep off differential ratio reasonable, the synchronizer gearshift, and axle is a spatial arrangement in the housing, housing is the middle power wheeled tractor transmission case of flat.
The utility model can be achieved through the following technical solutions above-mentioned purpose: the middle power wheeled tractor transmission case comprises: gear box casing 1, rear axle housing body 2, main clutch axle assembly 3, main transformer speed driving shaft assembly 4, idler shaft assembly 5, main transformer speed driven shaft assembly 6, secondary speed change gear axle assembly 7, the retaining gear shaft assembly 8 of creeping, bevel pinion axle assembly 9, reversing maneuver assembly 48, main transformer speed are handled assembly 49, secondary speed change is handled assembly 50.It is characterized in that: gear box casing 1 rear axle housing body 2 usefulness fastening pieces link to each other, main clutch axle assembly 3, main transformer speed driving shaft assembly 4, idler shaft assembly 5, main transformer speed driven shaft assembly 6, reversing maneuver assembly 48 and main transformer speed are handled assembly 49 and are assemblied in the gear box casing 1, secondary speed change gear axle assembly 7, creep retaining gear shaft assembly 8, bevel pinion axle assembly 9 and secondary speed change are handled assembly 50 and are assemblied in the rear axle housing body 2, gear box casing 1 and rear axle housing body 2 inner each employing spatial arrangement form make its outside present flat eight prismatic exterior cross-section.
On main-gear box housing 1, the forward gear driving gear 17 and the retaining driving gear 19 that falls back are connected on the main clutch axle 15 by spline main clutch axle 15 in the main clutch axle assembly 3 by the bearing freely-supported.
Main transformer speed driving shaft 22 in the main transformer speed driving shaft assembly 4 passes through the bearing supported at three point on main-gear box housing 1, forward gear driven gear 16, the retaining driven gear 20 that falls back, III retaining driving gear 24, IV retaining driving gear 26 skies are enclosed within on the main transformer speed driving shaft 22, and I retaining driving gear 21, II retaining driving gear 23, commutation synchronizer assembly 10 and III-IV retaining synchronizer assembly 11 are connected on the main transformer speed driving shaft 22 by spline.
On main-gear box housing 1, the retaining idle pulley 28 that falls back is connected idler shaft 27 by spline to idler shaft 27 in the idler shaft assembly 5 by the bearing freely-supported.
Main transformer speed driven shaft 34 in the main transformer speed driven shaft assembly 6 passes through the bearing freely-supported on main-gear box housing 1, I retaining driven gear 29, II retaining driven gear 31 skies are enclosed within on the main transformer speed driving shaft 34, and III retaining driven gear 32, IV retaining driven gear 33 and I-II retaining synchronizer assembly 12 are connected on the main transformer speed driving shaft 34 by spline.
Secondary change gear shaft 35 in the secondary speed change gear axle assembly 7 passes through the bearing freely-supported on rear axle housing body 2, high gear driving gear 36, middle retaining driving gear 38 skies are enclosed within on the secondary change gear shaft 35, and high-middle retaining engagement cover assembly 14 is connected on the secondary change gear shaft 35 by internal spline.
The retaining gear shaft 45 of creeping that keeps off in the gear shaft assembly 8 of creeping passes through the bearing freely-supported on rear axle housing body 2, and the retaining gear 41 of creeping is connected on the retaining gear shaft 45 of creeping by spline.
Small coning gear shaft 47 in the bevel pinion axle assembly 9 passes through the bearing freely-supported on rear axle housing body 2, duplicate gear 40, retaining driven gear 43 skies of creeping are enclosed within on the small coning gear shaft 47, and forerunner's driving gear 39, high gear driven gear 44, middle retaining driven gear 46 and the low-retaining engagement cover assembly 13 of creeping are connected on the small coning gear shaft 47 by spline.
Secondary speed change operating rock arm 72 is fixedlyed connected with secondary speed change shifting block axle 73 in the secondary speed change manipulation assembly 50, secondary speed change shifting block axle 73 is socketed on the gear box casing 1, and can endwisely slip, its shifting block is inserted in the allocating slot of height-middle retaining shifting block 75 or the low-retaining shifting block 77 of creeping, height-middle retaining shifting block 75 and height-middle retaining shift fork 74 is fixedly connected on height-middle retaining declutch shift shaft 76, height-middle retaining declutch shift shaft 76 is socketed on the gear box casing 1, height-middle retaining shift fork 74 prongs are stirred the height-middle retaining tooth cover 37 in height-middle retaining engagement cover assembly 14, it is endwisely slipped articulate high gear driving gear 36 or middle retaining driving gear 38, low-the retaining shifting block 77 and low of the creeping-retaining shift fork 79 of creeping is fixedly connected on the low-retaining declutch shift shaft 78 of creeping, low-retaining the declutch shift shaft 78 of creeping is socketed on the gear box casing 1, low-retaining shift fork 79 prongs of creeping are stirred the low-retaining of creeping and are meshed the low-retaining tooth cover 42 of creeping that overlaps in the assembly 13, it is endwisely slipped articulate duplicate gear 40 or the retaining driven gear 43 of creeping, height-middle retaining declutch shift shaft 76 and the low-retaining declutch shift shaft 78 of creeping are by being installed in the positioning ball 81 in gear box casing 1 positioning hole, retaining spring 80 axially locating.
The utility model can reach following good effect: after adopting the utility model, make tractor gear quantity be increased to the 16+16 retaining, velocity range expands 0.3～40km/h to, and it is reasonable respectively to keep off velocity distribution, is fit to the demand of farmland, gardens, engineering and hauling operation; It is reasonable that each keeps off differential ratio, and synchronizer gearshift in addition makes shift control lighter, smooth-going, satisfies the requirement of ergonomics, reduces the driver working strength; By adopting spatial axes is arrangement, eight prismatic cross section flat housings, thus distance between lower housing portion and the ground raised, increased the crack, ground, reduce center of gravity and complete machine height, improved passing ability and the adaptability of complete machine in field, gardens, engineering and hauling operation greatly.Comprehensively above-mentioned, this middle power wheeled tractor transmission case gear is many, and velocity distribution is reasonable, and it is wide to be suitable for operating range, the transmission efficiency height, it is light to shift gears, and center of gravity is low, and passing ability is good, be equipped with this transmission case and will promote middle power wheeled tractor complete machine performance greatly, promote its competitive ability in like product, can obtain abundant economic benefit, have broad application prospects.
Description of drawings
Accompanying drawing 1 is the layout sectional view for prior art middle power wheeled tractor transmission case axle.
Accompanying drawing 2 is that the utility model middle power wheeled tractor transmission case transmission line launches schematic representation.
Accompanying drawing 3 is the utility model middle power wheeled tractor transmission case A-A sectional view.
Accompanying drawing 4 is the utility model middle power wheeled tractor transmission case E-E partial section.
Accompanying drawing 5 is the utility model middle power wheeled tractor transmission case B-B sectional view.
Accompanying drawing 6 is the utility model middle power wheeled tractor transmission case F-F partial section.
Accompanying drawing 7 is the utility model middle power wheeled tractor transmission case C-C sectional view.
Accompanying drawing 8 is the utility model middle power wheeled tractor transmission case D-D sectional view.
Accompanying drawing 9 is the utility model middle power wheeled tractor transmission case G-G partial section.
Embodiment
Present embodiment is shown in accompanying drawing 2～9, and the middle power wheeled tractor transmission case comprises: gear box casing 1, rear axle housing body 2, main clutch axle assembly 3, main transformer speed driving shaft assembly 4, idler shaft assembly 5, main transformer speed driven shaft assembly 6, secondary speed change gear axle assembly 7, creep retaining gear shaft assembly 8, bevel pinion axle assembly 9 and reversing maneuver assembly 48, main transformer speed are handled assembly 49, secondary speed change is handled assembly 50.Gear box casing 1 rear axle housing body 2 usefulness fastening pieces link to each other, main clutch axle assembly 3, main transformer speed driving shaft assembly 4, idler shaft assembly 5 main transformers speed driven shaft assembly 6, reversing maneuver assembly 48 and main transformer speed are handled assembly 49 and are assemblied in the gear box casing 1, secondary speed change gear axle assembly 7, creep retaining gear shaft assembly 8, bevel pinion axle assembly 9 and secondary speed change are handled assembly 50 and are assemblied in the rear axle housing body 2, gear box casing 1 and rear axle housing body 2 inner each employing spatial arrangement form make it present flat eight prismatic profiles.
Wherein main clutch axle assembly 3 (as shown in Figure 2) comprises main clutch axle 15, forward gear driving gear 17, retaining driving gear 19 falls back; On main-gear box housing 1, the forward gear driving gear 17 and the retaining driving gear 19 that falls back are connected on the main clutch axle 15 by spline main clutch axle 15 by the bearing freely-supported.
4 (as shown in Figure 2) of main transformer speed driving shaft assembly comprise main transformer speed driving shaft 22, forward gear driven gear 16, the retaining driven gear 20 that falls back, I retaining driving gear 21, II retaining driving gear 23, III retaining driving gear 24, IV retaining driving gear 26, commutation synchronizer assembly 10 and III-IV retaining synchronizer assembly 11; Main transformer speed driving shaft 22 by bearings on main-gear box housing 1, forward gear driven gear 16, the retaining driven gear 20 that falls back, III retaining driving gear 24, IV retaining driving gear 26 skies are enclosed within on the main transformer speed driving shaft 22, and I retaining driving gear 21, II retaining driving gear 23, commutation synchronizer assembly 10 and III-IV retaining synchronizer assembly 11 are connected on the main transformer speed driving shaft 22 by spline.
Idler shaft assembly 5 (as shown in Figure 2) comprises idler shaft 27 and falls back retaining idle pulley 28; On main-gear box housing 1, the retaining idle pulley 28 that falls back is connected idler shaft 27 by spline to idler shaft 27 by the bearing freely-supported.
6 (as shown in Figure 2) of main transformer speed driven shaft assembly comprise main transformer speed driven shaft 34, I retaining driven gear 29, II retaining driven gear 31, III retaining driven gear 32, IV retaining driven gear 33 and I-II retaining synchronizer assembly 12; Main transformer speed driven shaft 34 passes through the bearing freely-supported on main-gear box housing 1, I retaining driven gear 29, II retaining driven gear 31 skies are enclosed within on the main transformer speed driving shaft 34, and III retaining driven gear 32, IV retaining driven gear 33 and I-II retaining synchronizer assembly 12 are connected on the main transformer speed driving shaft 34 by spline.
7 (as shown in Figure 2) of secondary speed change gear axle assembly comprise that secondary change gear shaft 35, high gear driving gear 36, middle retaining driving gear 38 and height-middle retaining engagement overlaps assembly 14; On rear axle housing body 2, high gear driving gear 36, middle retaining driving gear 38 skies are enclosed within on the secondary change gear shaft 35 secondary change gear shaft 35 by the bearing freely-supported, and high-middle retaining engagement cover assembly 14 is connected on the secondary change gear shaft 35 by internal spline.
8 (as shown in Figure 2) of retaining gear shaft assembly of creeping comprise creep the retaining gear shaft 45 and the retaining gear 41 of creeping; The retaining gear shaft 45 of creeping passes through the bearing freely-supported on rear axle housing body 2, and the retaining gear 41 of creeping is connected on the retaining gear shaft 45 of creeping by spline.
Bevel pinion axle assembly 9 (as shown in Figure 2) comprises small coning gear shaft 47, duplicate gear 40, creeps and keep off driven gear 43, forerunner's driving gear 39, high gear driven gear 44, middle retaining driven gear 46 and the low-retaining engagement cover assembly 13 of creeping; Small coning gear shaft 47 passes through the bearing freely-supported on rear axle housing body 2, duplicate gear 40, retaining driven gear 43 skies of creeping are enclosed within on the small coning gear shaft 47, and forerunner's driving gear 39, high gear driven gear 44, middle retaining driven gear 46 and the low-retaining engagement cover assembly 13 of creeping are connected on the small coning gear shaft 47 by spline.
Reversing maneuver assembly 48 (shown in accompanying drawing 3,4) comprises limiting board 51, commutation Rocker arm 52, commutation shifting block axle 53, commutation shift fork 54, cotter pin 55, retaining spring 56, positioning ball 57, commutation declutch shift shaft 58; Commutation Rocker arm 52 is fixedlyed connected with commutation shifting block axle 53, commutation shifting block axle 53 is socketed on the gear box casing 1, and carry out axial limiting by limiting board 51, its shifting block inserts in the allocating slot of commutation shift fork 54, commutation shift fork 54 is socketed on the commutation declutch shift shaft 58, positioning ball 57, retaining spring 56 and cotter pin 55 are installed in commutation shift fork 54 positioning holes, commutation shift fork 54 prongs are stirred the commutating tooth cover 18 in the commutation synchronizer assembly 10, it is endwisely slipped articulate forward gear driven gear 16 or fall back retaining driven gear 20.Main transformer speed is handled assembly 49 (shown in accompanying drawing 5,6,7) and is comprised that main transformer speed rocking arm guide plate 59, I-II retaining rocking arm 60, I-II retaining shifting block axle 61, III-IV retaining rocking arm 62, III-IV retaining shifting block axle 63, I-II retaining shifting block 64, I-II retaining declutch shift shaft 65, III-IV retaining shifting block 66, III-IV retaining declutch shift shaft 67, retaining spring 68, positioning ball 69, I-II retaining shift fork 70, III-IV keep off shift fork 71; Main transformer speed rocking arm guide plate 59 is fixedly connected on the gear box casing 1, I-II retaining rocking arm 60 is fixedlyed connected with I-II retaining shifting block axle 61, I-II retaining shifting block axle 61 is socketed on the main transformer speed rocking arm guide plate 59, and by its axial limiting, its shifting block inserts in the allocating slot of I-II retaining shifting block 64, I-II retaining shifting block 64 and I-II retaining shift fork 70 are fixedly connected on the I-II retaining declutch shift shaft 65, I-II retaining declutch shift shaft 65 is socketed on the gear box casing 1, I-II retaining shift fork 70 prongs are stirred the I-II retaining tooth cover 30 in the I-II retaining synchronizer assembly 12, it is endwisely slipped articulate I retaining driven gear 29 or II retaining driven gear 31, III-IV retaining rocking arm 62 is fixedlyed connected with III-IV retaining shifting block axle 63, III-IV retaining shifting block axle 63 is socketed on the I-II retaining shifting block axle 61, and by its axial limiting, its shifting block inserts in the allocating slot of III-IV retaining shifting block 66, III-IV retaining shifting block 66 and III-IV retaining shift fork 71 are fixedly connected on the III-IV retaining declutch shift shaft 67, III-IV retaining declutch shift shaft 67 is socketed on the gear box casing 1, III-IV retaining shift fork 71 prongs are stirred the III-IV retaining tooth cover 25 in the III-IV retaining synchronizer assembly 11, it is endwisely slipped articulate III retaining driven gear 24 or IV retaining driven gear 26, I-II retaining declutch shift shaft 65 and III-IV retaining declutch shift shaft 67 are by being installed in the positioning ball 69 in gear box casing 1 positioning hole, retaining spring 68 axially locating.
Secondary speed change is handled assembly 50 (shown in accompanying drawing 8,9) and is comprised secondary speed change operating rock arm 72, secondary speed change shifting block axle 73, height-middle retaining shift fork 74, height-middle retaining shifting block 75, height-middle retaining declutch shift shaft 76, low-the retaining shifting block 77 of creeping, low-the retaining declutch shift shaft 78 of creeping, low-creep retaining shift fork 79, retaining spring 80, positioning ball 81; Secondary speed change operating rock arm 72 is fixedlyed connected with secondary speed change shifting block axle 73, secondary speed change shifting block axle 73 is socketed on the gear box casing 1, and can endwisely slip, its shifting block is inserted in the allocating slot of height-middle retaining shifting block 75 or the low-retaining shifting block 77 of creeping, height-middle retaining shifting block 75 and height-middle retaining shift fork 74 is fixedly connected on height-middle retaining declutch shift shaft 76, height-middle retaining declutch shift shaft 76 is socketed on the gear box casing 1, height-middle retaining shift fork 74 prongs are stirred the height-middle retaining tooth cover 37 in height-middle retaining engagement cover assembly 14, it is endwisely slipped articulate high gear driving gear 36 or middle retaining driving gear 38, low-the retaining shifting block 77 and low of the creeping-retaining shift fork 79 of creeping is fixedly connected on the low-retaining declutch shift shaft 78 of creeping, low-retaining the declutch shift shaft 78 of creeping is socketed on the gear box casing 1, low-retaining shift fork 79 prongs of creeping are stirred the low-retaining of creeping and are meshed the low-retaining tooth cover 42 of creeping that overlaps in the assembly 13, it is endwisely slipped articulate duplicate gear 40 or the retaining driven gear 43 of creeping, height-middle retaining declutch shift shaft 76 and the low-retaining declutch shift shaft 78 of creeping are by being installed in the positioning ball 81 in gear box casing 1 positioning hole, retaining spring 80 axially locating.
Power imports this middle power wheeled tractor transmission case into through the main clutch combination, articulate the commutation synchronizer assembly 10 selection forward gear or the retainings that fall back by handling reversing maneuver assembly 48, handle main transformer speed manipulation assembly 49 then and articulate I-II retaining synchronizer assembly 12 or III-IV retaining synchronizer assembly 11 selection I, II, III, a certain gear in IV four retainings, handling secondary speed change simultaneously handles assembly 50 and articulates that height-middle retaining engagement cover assembly 14 or low-the retaining engagement cover assembly 13 of creeping is selected high, in, low, creep four the retaining in a certain gear, power direct transfers via commutation synchronizer assembly 10 or oppositely, then by I-II retaining synchronizer assembly 12 or III-IV retaining synchronizer assembly 11 speed changes, then reach central transmission system after the speed change once more by high-middle retaining engagement cover assembly 14 or the low-retaining engagement cover assembly 13 of creeping, divide supplementary biography ransaxle forwards, backwards again, thereby realize the purpose of 16+16 retaining travelling speed.
Claims (10)
1. a middle power wheeled tractor transmission case comprises that gear box casing (1), rear axle housing body (2), main clutch axle assembly (3), main transformer speed driving shaft assembly (4), idler shaft assembly (5), main transformer speed driven shaft assembly (6), secondary speed change gear axle assembly (7), the retaining gear shaft assembly (8) of creeping, bevel pinion axle assembly (9), reversing maneuver assembly (48), main transformer speed are handled assembly (49), secondary speed change is handled assembly (50); It is characterized in that: gear box casing (1) rear axle housing body (2) links to each other with fastening piece, main clutch axle assembly (3), main transformer speed driving shaft assembly (4), idler shaft assembly (5), main transformer speed driven shaft assembly (6), reversing maneuver assembly (48) and main transformer speed are handled assembly (49) and are assemblied in the gear box casing (1), secondary speed change gear axle assembly (7), creep and keep off gear shaft assembly (8), bevel pinion axle assembly (9) and secondary speed change are handled assembly (50) and are assemblied in the rear axle housing body (2), inner each the employing spatial arrangement form of gear box casing (1) and rear axle housing body (2) makes its outside present flat eight prismatic exterior cross-section.
2. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: on main-gear box housing (1), the forward gear driving gear (17) and the retaining driving gear (19) that falls back are connected on the main clutch axle (15) by spline the main clutch axle (15) in the described main clutch axle assembly (3) by the bearing freely-supported.
3. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: the main transformer speed driving shaft (22) in the described main transformer speed driving shaft assembly (4) passes through the bearing supported at three point on main-gear box housing (1), forward gear driven gear (16), retaining driven gear (20) falls back, III keeps off driving gear (24), IV retaining driving gear (26) sky is enclosed within on the main transformer speed driving shaft (22), and I keeps off driving gear (21), II keeps off driving gear (23), commutation synchronizer assembly (10) and III-IV retaining synchronizer assembly (11) are connected on the main transformer speed driving shaft (22) by spline.
4. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: on main-gear box housing (1), the retaining idle pulley (28) that falls back is connected idler shaft (27) by spline to the idler shaft (27) in the described idler shaft assembly (5) by the bearing freely-supported.
5. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: the main transformer speed driven shaft (34) in the described main transformer speed driven shaft assembly (6) passes through the bearing freely-supported on main-gear box housing (1), I retaining driven gear (29), II retaining driven gear (31) sky are enclosed within on the main transformer speed driving shaft (34), and III retaining driven gear (32), IV retaining driven gear (33) and I-II retaining synchronizer assembly (12) are connected on the main transformer speed driving shaft (34) by spline.
6. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: the secondary change gear shaft (35) in the described secondary speed change gear axle assembly (7) passes through the bearing freely-supported on rear axle housing body (2), high gear driving gear (36), middle retaining driving gear (38) sky are enclosed within on the secondary change gear shaft (35), and high-middle retaining engagement cover assembly (14) is connected on the secondary change gear shaft (35) by internal spline.
7. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: on rear axle housing body (2), the retaining gear (41) of creeping is connected on the retaining gear shaft (45) of creeping by spline the retaining gear shaft (45) of creeping in the described retaining gear shaft assembly (8) of creeping by the bearing freely-supported.
8. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: the small coning gear shaft (47) in the described bevel pinion axle assembly (9) passes through the bearing freely-supported on rear axle housing body (2), duplicate gear (40), retaining driven gear (43) sky of creeping are enclosed within on the small coning gear shaft (47), and forerunner's driving gear (39), high gear driven gear (44), middle retaining driven gear (46) and the low-retaining engagement cover assembly (13) of creeping are connected on the small coning gear shaft (47) by spline.
9. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: commutation rocking arm (52) is fixedlyed connected with commutation shifting block axle (53) in the described reversing maneuver assembly (48), commutation shifting block axle (53) is socketed on the gear box casing (1), and carry out axial limiting by limiting board (51), its shifting block inserts in the allocating slot of commutation shift fork (54), commutation shift fork (54) is socketed on the commutation declutch shift shaft (58), positioning ball (57), retaining spring (56) and cotter pin (55) are installed in commutation shift fork (54) positioning hole, commutation shift fork (54) prong is stirred the commutating tooth cover (18) in the commutation synchronizer assembly (10), it is endwisely slipped articulate forward gear driven gear (16) or fall back retaining driven gear (20); Main transformer speed is handled the middle main transformer speed rocking arm guide plate of assembly (49) (59) and is fixedly connected on the gear box casing (1), I-II retaining rocking arm (60) is fixedlyed connected with I-II retaining shifting block axle (61), I-II retaining shifting block axle (61) is socketed on the main transformer speed rocking arm guide plate (59), and by its axial limiting, its shifting block inserts in the allocating slot of I-II retaining shifting block (64), I-II retaining shifting block (64) and I-II retaining shift fork (70) are fixedly connected on the I-II retaining declutch shift shaft (65), I-II retaining declutch shift shaft (65) is socketed on the gear box casing (1), I-II retaining shift fork (70) prong is stirred the I-II retaining tooth cover (30) in the I-II retaining synchronizer assembly (12), it is endwisely slipped articulate I retaining driven gear (29) or II retaining driven gear (31), III-IV retaining rocking arm (62) is fixedlyed connected with III-IV retaining shifting block axle (63), III-IV retaining shifting block axle (63) is socketed on the I-II retaining shifting block axle (61), and by its axial limiting, its shifting block inserts in the allocating slot of III-IV retaining shifting block (66), III-IV retaining shifting block (66) and III-IV retaining shift fork (71) are fixedly connected on the III-IV retaining declutch shift shaft (67), III-IV retaining declutch shift shaft (67) is socketed on the gear box casing (1), III-IV retaining shift fork (71) prong is stirred the III-IV retaining tooth cover (25) in the III-IV retaining synchronizer assembly (11), it is endwisely slipped articulate III retaining driven gear (24) or IV retaining driven gear (26), I-II retaining declutch shift shaft (65) and III-IV retaining declutch shift shaft (67) are by being installed in the positioning ball (69) in gear box casing 1 positioning hole, retaining spring (68) axially locating.
10. middle power wheeled tractor transmission case according to claim 1, it is characterized in that: secondary speed change operating rock arm (72) is fixedlyed connected with secondary speed change shifting block axle (73) in the described secondary speed change manipulation assembly (50), secondary speed change shifting block axle (73) is socketed on the gear box casing (1), and can endwisely slip, its shifting block is inserted in the allocating slot of height-middle retaining shifting block (75) or the low-retaining shifting block (77) of creeping, height-middle retaining shifting block (75) and height-middle retaining shift fork (74) is fixedly connected on height-middle retaining declutch shift shaft (76), height-middle retaining declutch shift shaft (76) is socketed on the gear box casing (1), height-middle retaining shift fork (74) prong is stirred the height-middle retaining tooth cover (37) in height-middle retaining engagement cover assembly (14), it is endwisely slipped articulate high gear driving gear (36) or middle retaining driving gear (38), that the low-retaining shifting block (77) and low of creeping-retaining shift fork (79) of creeping is fixedly connected on is low-and creep and keep off on the declutch shift shaft (78), low-retaining the declutch shift shaft (78) of creeping is socketed on the gear box casing (1), low-retaining shift fork (79) prong of creeping is stirred the low-retaining tooth cover (42) of creeping in the low-retaining engagement cover assembly (13) of creeping, it is endwisely slipped articulate duplicate gear (40) or the retaining driven gear (43) of creeping, height-middle retaining declutch shift shaft (76) and the low-retaining declutch shift shaft (78) of creeping are by being installed in the positioning ball (81) in gear box casing (1) positioning hole, retaining spring (80) axially locating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201356133U CN201651251U (en) | 2010-03-19 | 2010-03-19 | Medium-power wheeled tractor transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201356133U CN201651251U (en) | 2010-03-19 | 2010-03-19 | Medium-power wheeled tractor transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651251U true CN201651251U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201356133U Expired - Lifetime CN201651251U (en) | 2010-03-19 | 2010-03-19 | Medium-power wheeled tractor transmission case |
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| Country | Link |
|---|---|
| CN (1) | CN201651251U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793310A (en) * | 2010-03-19 | 2010-08-04 | 中国一拖集团有限公司 | Transmission case of wheeled tractor with medium power |
| CN103821884A (en) * | 2014-03-06 | 2014-05-28 | 朱英刚 | Multipurpose gearbox |
| CN103953720A (en) * | 2014-05-16 | 2014-07-30 | 福建尚锟齿轮箱制造有限公司 | Rear auxiliary transmission assembly |
-
2010
- 2010-03-19 CN CN2010201356133U patent/CN201651251U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793310A (en) * | 2010-03-19 | 2010-08-04 | 中国一拖集团有限公司 | Transmission case of wheeled tractor with medium power |
| CN101793310B (en) * | 2010-03-19 | 2012-02-01 | 中国一拖集团有限公司 | Transmission case of wheeled tractor with medium power |
| CN103821884A (en) * | 2014-03-06 | 2014-05-28 | 朱英刚 | Multipurpose gearbox |
| CN103821884B (en) * | 2014-03-06 | 2017-03-15 | 朱英钢 | Multipurpose gearbox |
| CN103953720A (en) * | 2014-05-16 | 2014-07-30 | 福建尚锟齿轮箱制造有限公司 | Rear auxiliary transmission assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20120201 |