CN203421127U - Nine-gear transmission with double intermediate shafts, bevel gears and lock ring type synchronizer - Google Patents
Nine-gear transmission with double intermediate shafts, bevel gears and lock ring type synchronizer Download PDFInfo
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- CN203421127U CN203421127U CN201320491625.3U CN201320491625U CN203421127U CN 203421127 U CN203421127 U CN 203421127U CN 201320491625 U CN201320491625 U CN 201320491625U CN 203421127 U CN203421127 U CN 203421127U
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- gear
- lock ring
- ring type
- synchronizer
- main shaft
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Abstract
The utility model discloses a nine-gear transmission with double intermediate shafts, bevel gears and a lock ring type synchronizer. Double intermediate shafts and large center distance are adopted in a main transmission part, a first gear, a second gear, a third gear, a fourth gear, a climbing gear and a reverse gear are respectively in bevel gear shapes, a spindle front locating mechanism and a spindle rear locating mechanism are arranged at the front end and the rear end of the spindle respectively, a twin cone lock ring type synchronizer is arranged between the first gear and the second gear, a singe cone lock ring type synchronizer is arranged between the third gear and the fourth gear, and the reverse gear and the climbing gear are connected with a gliding gear sleeve. An auxiliary transmission part is provided with a planetary gear train and a widened twin cone lock ring type synchronizer, and the spindle is connected with a sun wheel in the auxiliary transmission part through a spline transition sleeve. The nine-gear transmission with double intermediate shafts, bevel gears and the lock ring type synchronizer achieves gear shifting of all the synchronizers through the first gear, the second gear, the third gear and the fourth gear, meanwhile the widths of the reversing gear, the climbing gear and the first gear are correspondingly increased, and the service life of a low gear area with heavy load is prolonged. Not only is gear shifting performance of a high gear area improved, but also working reliability of the nine-gear transmission is further improved. The transmission has the advantages of saving labor in operation, stable in gear shifting transmission, low in noise and long in service life and labor-saving to operate.
Description
Technical field
The utility model relates to the two middle shaft helical teeth bipyramid lock ring type non-clashing gear sets of a kind of 9 gear, belongs to automobile technical field.
Background technique
At present, heavy type lorry transmission-gear box main-gear box mainly be take two intermediate shaft structures as main, and main-gear box gear all adopts straight-tooth, assembly low bearing capacity, and noise is larger; Main-gear box generally adopts slippage tooth gearbox, when different gears are changed, because the line of contact speed of the mainshaft gear that will mesh and slippage tooth cover is unequal, so impact is larger when engagement, the combination tooth position premature wear of mainshaft gear and slippage tooth cover is serious; Slippage tooth gearbox requires high to driver's operation, need larger gear shifting force when gearshift, and needs to complete gearshift rapidly and correctly at short notice, easily causes driver fatigue.Auxiliary transmission generally adopts the gearshift of short stroke list conical surface lock ring type synchronizer, and synchronous capacity is little, in the heavily loaded gearbox of using, uses and easily causes earlier period damage at engineering vehicle.The problem that two intermediate shaft structure heavy type lorry transmission-gear boxes of using for engineering vehicle exist, need structurally take enhancements, has both guaranteed to improve gear capacity and structural reliability.Reduce the driver that shift hunting causes works simultaneously under fatigue state.
Summary of the invention
Technical problem to be solved in the utility model is to provide that a kind of gear shift operation is light, stable drive, noise are low, gearbox long service life, two middle shaft helical teeth bipyramid lock ring type non-clashing gear sets of 9 gear that reliability is high.
For solving this technical problem, the utility model provides a kind of 9 gear two middle shaft helical teeth lock ring type non-clashing gear sets, comprise main-gear box part and auxiliary transmission part, described main-gear box partly adopts two large centre distance of jack shaft, power is delivered on main shaft by two jack shafts by input shaft input, the first gear of main-gear box part, second gear, three gear gears, four gear gears, climb gear gear and reverse gear and be helical teeth profile of tooth, the front end and back end of described main shaft is respectively equipped with positioning means after main shaft prelocalization mechanism and main shaft, between first gear and second gear, be provided with bipyramid lock ring type synchronizer assembly, between three gear gears and four gear gears, be provided with single cone lock ring type synchronizer assembly, reverse gear with climb gear gear and slippage tooth and overlap and be connected, described auxiliary transmission is partly provided with planetary wheel mechanism and widens bipyramid lock ring type synchronizer assembly, described main shaft is connected with sun gear in auxiliary transmission part by spline spacer shell.
Described first gear, second gear, three keep off gears, four gear gears and climb gear gear is dextrorotation gear, and reverse gear is left-handed gear.
Described first gear, to climb gear gear and reverse gear be canine tooth wide gear.
Described main shaft prelocalization mechanism comprises bearing, the thrust-bearing of being located at input shaft rear end and the bearing race of axially locating on housing, thrust-bearing contacts with the bearing race on input shaft, between bearing race and input shaft, be provided with needle bearing, between needle bearing and input shaft, leave radial clearance, to realize floating of main shaft.
After described main shaft positioning means comprise be arranged on rear-end of spindle and with the rear support positioning shaft of main shaft interference fit, the rear end of rear support positioning shaft is provided with back pressure gear mechanism.
Described back pressure gear mechanism comprises that main shaft adjusts packing ring after packing ring before pad, thrust-bearing, thrust-bearing and thrust-bearing, locates after finally realizing main shaft by the planet carrier of realizing axially locating at housing.
Described bipyramid lock ring type synchronizer assembly comprises synchronizer gear seat, the synchronizer sliding sleeve being connected with synchronizer gear seat, be placed in pushing block and the intermediate cone that is positioned at pushing block inner side on synchronizer gear seat, synchronizer gear seat is connected with main shaft by internal spline, radially be fixed on main shaft, synchronizer gear seat is realized axially locating by jump ring at main shaft, uniform some claws in intermediate cone, the circular hole that claw end is combined on gear ring with synchronizer matches, synchronizer meshes by spline and second gear and first gear in conjunction with gear ring, described intermediate cone is provided with outer cone and the inner cone being mated, on outer cone and inner cone with on the fitting surface of intermediate cone, be bonded with friction material layer.
The housing of main-gear box part and auxiliary transmission part is combined type, and the 3 stops housing that main-gear box and auxiliary transmission are are mainly connected and composed by fore shell, mesochite and back cover forms.
Beneficial effect: the utility model is mainly used in engineering vehicle, creeper gear designs separately as an independent gear, realize large speed ratio transmission, main-gear box part one to four gear is realized full synchronizer gearshift, between one or two gears, design bipyramid lock ring type synchronizer, the single cone of design lock ring type synchronizer between three or four gears, creeper gear does not design synchronizer with reversing gear, by slippage tooth cover, realize gearshift, corresponding increase is simultaneously reversed gear, creeper gear and a gear width, working life while improving the heavy duty of low gear district, the gearshift of high gear district design synchronizer, low gear district does not design synchronizer gearshift, both improved the gearshift performance in high gear district, improved again gearbox functional reliability, there is rapid operation, gear shift operation is steady, stable drive, noise is low, the advantage of long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is main shaft axial bidirectional locating structure schematic diagram of the present utility model;
Fig. 3 is bipyramid lock ring type synchronizer structure schematic diagram of the present utility model.
In figure: A main-gear box, B auxiliary transmission, the mono-cone of C lock ring type synchronizer assembly, D bipyramid lock ring type synchronizer assembly, E slippage tooth cover, F widen bipyramid lock ring type synchronizer assembly, 1 input shaft, 2 bearings, 3 thrust-bearings, 4 bearing races, 5 needle bearings, 6 main shafts, 7 first gears, 8 climb gear gear, 9 reverse gears, 10 spline spacer shells, 11 sun gears, 12 planet carriers, packing ring after 13 thrust-bearings, 14 thrust-bearings, packing ring before 15 thrust-bearings, 16 main shafts are adjusted pad, 17 rear support positioning shafts, 18 3 gear gears, 19 jack shafts, 20 second gears, 21 synchronizers are in conjunction with gear ring, 22 intermediate cone, 23 inner cones, 24 outer cones, 25 synchronizer sliding sleeves, 26 synchronizer gear seats, 27 pushing blocks, 28 jump rings, 29 4 gear gears.
Embodiment
Below in conjunction with drawings and Examples, the utility model is specifically described.
Figure 1 shows that structural representation of the present utility model.
The utility model comprises main-gear box part A and auxiliary transmission part B, described main-gear box part A adopts two large centre distance of jack shaft, power is assigned on two jack shafts 19 after being inputted by input shaft 1, through two jack shafts 19, be delivered on main shaft 6, the moment of torsion that each jack shaft 19 transmits after two jack shafts 19 are realized power dividing reduces, improve the working life of jack shaft 19 and countershaft-gear, the radial force that the gear on main shaft 1 bears is simultaneously zero, a transmitting torque.
Described gearbox part A main shaft 6 is provided with first gear 7, second gear 20, three gear gears 18, four gear gears 29, climbs gear gear 8 and reverse gear 9, and said gear is helical teeth profile of tooth.
Described first gear 7, second gear 20, three gear gears 18, four keep off gears 29 and climb and keep off gear 8 for dextrorotation gear, reverse gear 9 is left-handed gear, helical teeth transmission produces axial force, during with countershaft-gear transmission, one shaftgear axial force is pointed to main shaft, the axial force of mainshaft gear is pointed to an axle, and the two axial force is cancelled out each other in inside, makes stable drive, can increase substantially bearing capacity
The conversion rotary inertia that need to overcome during due to one or two gear gearshift is large, therefore be provided with bipyramid lock ring type synchronizer assembly D at first gear 7 and 20 of second gears, one or two gear gearshifts are shifted gears by this bipyramid lock ring type synchronizer assembly D.
Described three gear gears 18 and four 29 of gears of gear are provided with single cone lock ring type synchronizer assembly C of compact structure, and three or four keep off gearshift shifts gears by this list cone lock ring type synchronizer C, reduces gear shifting force and gearshift impact.
Reverse gear and creeper gear only has under specific circumstances and to use, frequency of usage is low, and slippage tooth gearbox can meet usage requirement, therefore at reverse gear 9 with climb gear gear 8 slippage tooth cover E gearshift is set.
Described auxiliary transmission part B is provided with planetary wheel mechanism and widens bipyramid lock ring type synchronizer assembly F; Described main shaft 6 is connected with sun gear 11 in auxiliary transmission part B by spline spacer shell 10.
Described first gear 7, to climb gear gear 8 and reverse gear 9 be canine tooth wide gear, the bearing capacity in low gear district while improving heavy duty.
Figure 2 shows that main shaft axial bidirectional locating structure schematic diagram of the present utility model.
The front end and back end of described main shaft 6 is respectively equipped with positioning means after main shaft prelocalization mechanism and main shaft.
Described main shaft prelocalization mechanism comprises the bearing 2 of axially locating on housing, realize the axially locating of input shaft 1, in the rear end of input shaft 1, be provided with thrust-bearing 3 and bearing race 4, thrust-bearing 3 contacts with the bearing race 4 on input shaft 1, between bearing race 4 and input shaft 1, be provided with needle bearing 5, between needle bearing 5 and input shaft 1, leave radial clearance, realize floating of main shaft 6.
After described main shaft positioning means comprise be arranged on main shaft 6 rear ends and with the rear support positioning shaft 17 of main shaft 6 interference fit, the rear end of rear support positioning shaft 17 is provided with back pressure gear mechanism.
Described back pressure gear mechanism comprises that main shaft adjusts packing ring 13 after packing ring 15 before pad 16, thrust-bearing, thrust-bearing 14 and thrust-bearing, locates after finally realizing main shaft by the planet carrier 12 of realizing axially locating at housing.
Described input shaft 1 stretches in main shaft 6 holes, main-gear box main shaft forward gear design of gears is dextrorotation, reverse gear 9 is designed to left-handed, main shaft 6 axial forces left, main-gear box is when gear, main shaft 6 axial force forward passes to input shaft 1 through bearing race 4, thrust-bearing 3, offsets with input shaft 1 axial force backward; Bearing race 4 endoporus are installed needle bearing 5, between needle bearing 5 and input shaft 1, leave radial clearance, to realize floating of main shaft 6.
When main-gear box A shifts gears, axial shifting power is left delivered to input shaft 1 by main shaft 6, finally in housing balance, axial shifting power to the right, by packing ring 13 after packing ring 15, thrust-bearing 14, thrust-bearing before main shaft rear support positioning shaft 17, main shaft adjustment pad 16, thrust-bearing, be delivered to planet carrier 12, planet carrier 12 has been realized axially locating at housing, with this, carrys out balance axial shifting power to the right.
Described auxiliary transmission B has two gears, forms 4 * 2+1 structure together with main-gear box A, forms 9 forward gears and adds 1 and reverse gear.
Described auxiliary transmission B adopts planetary gear train structure, uses and widens bipyramid lock ring type synchronizer F gearshift, and object is to improve odd-side bearing capacity and working life.
Figure 3 shows that bipyramid lock ring type synchronizer structure schematic diagram of the present utility model.
Described bipyramid lock ring type synchronizer assembly D comprises synchronizer gear seat 26, the synchronizer sliding sleeve 25 being connected with synchronizer gear seat 26, be placed in pushing block 27 and the intermediate cone 22 that is positioned at pushing block 27 inner sides on synchronizer gear seat 26, synchronizer gear seat 26 is connected with main shaft 6 by internal spline, radially be fixed on main shaft 6, synchronizer gear seat 26 is realized axially locating by jump ring 28 at main shaft 6, uniform some claws in intermediate cone 22, the circular hole that claw end is combined on gear ring 21 with synchronizer matches, synchronizer in conjunction with gear ring 21 by spline and second gear 20 and first gear 7 engagements, described intermediate cone 22 is provided with outer cone 24 and the inner cone 23 being mated, on outer cone 24 and inner cone 23 with on the fitting surface of intermediate cone 22, be bonded with friction material layer.
When synchronizer is put into gear, synchronizer sliding sleeve 25 is moved to the left, claw in intermediate cone 22 inserts synchronizer in conjunction with in the circular hole on gear ring 21, two pairs of mutual conical surfaces of friction, make synchronizer sliding sleeve 25 consistent with the linear velocity of first gear 7 on main shaft 6 and second gear 20, synchronizer sliding sleeve 25 is hung into synchronizer in conjunction with gear ring 21, main shaft 6 combines in conjunction with gear ring 21 and first gear 7 and second gear 20 on main shaft 6 by synchronizer gear seat 26, synchronizer sliding sleeve 25, synchronizer, completes gearshift action.
The housing of described main-gear box part A and auxiliary transmission part B is combined type, and the 3 stops housing that main-gear box and auxiliary transmission are are mainly connected and composed by fore shell, mesochite and back cover forms, 3 stops housing design, and assembly process process is good.
The above-mentioned embodiment of the utility model, just illustrates, and is not only, all within the scope of the utility model or the change being equal in scope of the present utility model all by the utility model, surrounded.
Claims (8)
1. keep off two middle shaft helical teeth lock ring type non-clashing gear sets for one kind 9, comprise main-gear box part (A) and auxiliary transmission part (B), described main-gear box part (A) adopts two large centre distance of jack shaft, power is delivered on main shaft (6) by two jack shafts (19) by input shaft (1) input, it is characterized in that: the first gear (7 of main-gear box part (A), second gear (20, three gear gears (18), four gear gears (29), climb gear gear (8) and reverse gear (9) and be helical teeth profile of tooth, the front end and back end of described main shaft (6) is respectively equipped with positioning means after main shaft prelocalization mechanism and main shaft, between first gear (7) and second gear (20), be provided with bipyramid lock ring type synchronizer assembly (D), between three gear gears (18) and four gear gears (29), be provided with single cone lock ring type synchronizer assembly (C), reverse gear (9) with climb gear gear (8) be connected with slippage tooth cover (E), described auxiliary transmission part (B) is provided with planetary wheel mechanism and widens bipyramid lock ring type synchronizer assembly (F), described main shaft (6) is connected with sun gear (11) in auxiliary transmission part (B) by spline spacer shell (10).
2. according to claim 19 keep off two middle shaft helical teeth lock ring type non-clashing gear sets, it is characterized in that: described first gear (7), second gear (20), three gear gears (18), four keep off gears (29) and climb gear gear (8) for dextrorotation gear, and reverse gear (9) is left-handed gear.
3. two middle shaft helical teeth lock ring type non-clashing gear sets of 9 gear according to claim 1, is characterized in that: described first gear (7), climb gear gear (8) and reverse gear (9) is canine tooth wide gear.
4. according to claim 19 keep off two middle shaft helical teeth lock ring type non-clashing gear sets, it is characterized in that: described main shaft prelocalization mechanism comprises bearing (2), the thrust-bearing (3) of being located at input shaft (1) rear end and the bearing race (4) of axially locating on housing, thrust-bearing (3) contacts with the bearing race (4) on input shaft (1), between bearing race (4) and input shaft (1), be provided with needle bearing (5), between needle bearing (5) and input shaft (1), leave radial clearance, to realize floating of main shaft (6).
5. according to claim 19 keep off two middle shaft helical teeth lock ring type non-clashing gear sets, it is characterized in that: after described main shaft positioning means comprise be arranged on main shaft (6) rear end and with the rear support positioning shaft (17) of main shaft (6) interference fit, the rear end of rear support positioning shaft (17) is provided with back pressure gear mechanism.
6. according to claim 59 keep off two middle shaft helical teeth lock ring type non-clashing gear sets, it is characterized in that: described back pressure gear mechanism comprises that main shaft adjusts packing ring (13) after packing ring (15) before pad (16), thrust-bearing, thrust-bearing (14) and thrust-bearing, locate after finally realizing main shaft by the planet carrier (12) of realizing axially locating at housing.
7. according to claim 19 keep off two middle shaft helical teeth lock ring type non-clashing gear sets, it is characterized in that: described bipyramid lock ring type synchronizer assembly (D) comprises synchronizer gear seat (26), the synchronizer sliding sleeve (25) being connected with synchronizer gear seat (26), be placed in the pushing block (27) on synchronizer gear seat (26) and be positioned at the intermediate cone (22) of pushing block (27) inner side, synchronizer gear seat (26) is connected with main shaft (6) by internal spline, radially be fixed on main shaft (6), synchronizer gear seat (26) is realized axially locating by jump ring (28) at main shaft (6), the upper uniform some claws of intermediate cone (22), the circular hole that claw end is combined with synchronizer on gear ring (21) matches, synchronizer in conjunction with gear ring (21) by spline and second gear (20) and first gear (7) engagement, described intermediate cone (22) is provided with outer cone (24) and the inner cone (23) being mated, outer cone (24) and inner cone (23) above and on the fitting surface of intermediate cone (22) are bonded with friction material layer.
8. according to the two middle shaft helical teeth lock ring type non-clashing gear sets of the gear of 9 described in claim 1 ~ 7 any one, it is characterized in that: the housing of main-gear box part (A) and auxiliary transmission part (B) is combined type, and the 3 stops housing that main-gear box and auxiliary transmission are are mainly connected and composed by fore shell, mesochite and back cover forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491625.3U CN203421127U (en) | 2013-08-13 | 2013-08-13 | Nine-gear transmission with double intermediate shafts, bevel gears and lock ring type synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491625.3U CN203421127U (en) | 2013-08-13 | 2013-08-13 | Nine-gear transmission with double intermediate shafts, bevel gears and lock ring type synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421127U true CN203421127U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320491625.3U Expired - Lifetime CN203421127U (en) | 2013-08-13 | 2013-08-13 | Nine-gear transmission with double intermediate shafts, bevel gears and lock ring type synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421127U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388657A (en) * | 2013-08-13 | 2013-11-13 | 中国重汽集团济南动力有限公司 | 9-gear twin-countershaft helical gear lock ring synchronizer transmission |
| CN104565303A (en) * | 2014-12-19 | 2015-04-29 | 杭州前进齿轮箱集团股份有限公司 | Support device for vertically installing planetary gear transmission floating mechanism of gearbox |
| CN110242733A (en) * | 2019-05-09 | 2019-09-17 | 南京越博动力系统股份有限公司 | A kind of electric automobile gear-box and its high to low gear location information recognition methods |
-
2013
- 2013-08-13 CN CN201320491625.3U patent/CN203421127U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388657A (en) * | 2013-08-13 | 2013-11-13 | 中国重汽集团济南动力有限公司 | 9-gear twin-countershaft helical gear lock ring synchronizer transmission |
| CN104565303A (en) * | 2014-12-19 | 2015-04-29 | 杭州前进齿轮箱集团股份有限公司 | Support device for vertically installing planetary gear transmission floating mechanism of gearbox |
| CN110242733A (en) * | 2019-05-09 | 2019-09-17 | 南京越博动力系统股份有限公司 | A kind of electric automobile gear-box and its high to low gear location information recognition methods |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |
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| CX01 | Expiry of patent term |