CN115539609A - Power uninterrupted gear shifting transmission - Google Patents

Abstract

The invention discloses a power uninterrupted gear shifting transmission, wherein a plurality of groups of clutch units are arranged in a power gear shifting module through a first shaft, a second shaft and a third shaft, wherein a fourth clutch is arranged on the first shaft, the fourth clutch is connected with the hollow shaft, a first gear set is arranged on the hollow shaft, the clutch unit on the second shaft is combined with fifth to seventh clutch units on the third shaft through the first gear set, power is output, the clutch units are distributed and arranged through the matching of three parallel shafts and the hollow shaft, twelve transmission gears and routes are provided for the transmission, the axial distance of a transmission shaft of the transmission is reduced while gears are increased, the speed change range of a vehicle is wider by more gears, the output torque range is larger, the vehicle can better adapt to various complex road conditions and working conditions, meanwhile, the power gear shifting can be realized in the working process, the power interruption of the vehicle is avoided, and the working efficiency is improved.

Description

Power uninterrupted gear shifting transmission

Technical Field

The invention belongs to the technical field of transmissions and relates to a power uninterrupted gear shifting transmission.

Background

With the rapid advance of modern construction, the power gear shifting gearbox gradually enters a large stage of an emerging market, and is widely applied to a plurality of fields such as agricultural machinery, mining machinery, construction machinery, special vehicles and the like. Compared with a common manual gearbox, the power gear shifting transmission is provided with more gears, power interruption can not occur during gear shifting, and the power gear shifting transmission can adapt to a wider speed regulation range and larger load change, so that the requirements of complex road conditions and working condition conditions are met.

Host plants in the field mainly use power shift transmissions on road rollers, fork trucks, bulldozers, graders and loaders, and until 2010, the application of power shift transmissions to high horsepower tractors has begun, and made a great breakthrough in the related art. At present, partial manufacturing enterprises develop research and application of a tractor power gear shifting technology.

In the existing commercial vehicle transmission, the AT and CVT are too high in cost, other manual and automatic transmissions are too few in gear, the adjustment range of the vehicle speed is small, the conventional commercial vehicle transmission is only suitable for vehicles with small horsepower and is not suitable for the use requirement of the current vehicles with large horsepower, the overall performance of the vehicles is reduced, the applicability to different working conditions and road conditions is low, and the phenomenon of power interruption is easy to occur during gear shifting.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, a transmission has few gears, a vehicle speed adjusting range is small, the transmission cannot be suitable for different working condition requirements, and power interruption is easy to occur during operation, and provides a power uninterrupted gear shifting transmission.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a power uninterrupted gear shifting transmission is characterized by comprising a power driving module, wherein the output end of the power driving module is sequentially connected with a power gear shifting module, a synchronous gear shifting module and a power reversing module, and the power reversing module is respectively connected with a front driving power taking module and a rear driving power taking module;

the power shifting module comprises a first shaft, a second shaft and a third shaft which are distributed in parallel;

the input end of the first shaft is connected with the output end of the power driving module, a fourth clutch and a twelfth gear are sequentially arranged on the first shaft in the axial direction, and the fourth clutch is connected with the hollow shaft;

be provided with first gear train on the hollow shaft, axial has set gradually first clutch unit, second clutch unit, third clutch unit and eleventh gear on the secondary shaft, first clutch unit, second clutch unit and third clutch unit all with the meshing of first gear train, eleventh gear and twelfth gear engagement, axial has set gradually fifth clutch unit, sixth clutch unit and seventh clutch unit on the third shaft, fifth clutch unit, sixth clutch unit and seventh clutch unit all with the meshing of first gear train, the input of synchronous ware shift module is connected to the output of third shaft.

The invention is further improved in that:

the first gear set comprises a second gear, a sixth gear and a ninth gear which are axially arranged;

the first clutch unit is sequentially meshed with the second gear and the fifth clutch unit;

the second clutch unit is sequentially meshed with the sixth gear and the sixth clutch unit;

the third clutch unit sequentially engages the ninth gear and the seventh clutch unit.

The first clutch unit comprises a first clutch, the first clutch is fixedly connected with the second shaft, the first clutch is connected with a first gear, and the first gear is meshed with a second gear.

The second clutch unit comprises a second clutch, the second clutch is fixedly connected with a second shaft, the second clutch is connected with a fourth gear, and the fourth gear is meshed with a sixth gear through a fifth gear.

The third clutch unit comprises a third clutch, the third clutch is fixedly connected with the second shaft, the third clutch is connected with an eighth gear, and the eighth gear is meshed with the ninth gear.

The synchronizer gear shifting module comprises a fourth shaft and a fifth shaft which are arranged in parallel;

the input end of the fourth shaft is connected with the output end of the third shaft, and the output end of the fourth shaft is connected with the input end of the power reversing module;

the fourth shaft is axially and sequentially provided with a fourteenth gear, a first synchronizer and a second gear set, the fifth shaft is axially and sequentially provided with a thirteenth gear, a second synchronizer unit, a third synchronizer unit, a fourth synchronizer unit and a fifth synchronizer unit, the fourteenth gear is meshed with the thirteenth gear, and the second synchronizer unit, the third synchronizer unit, the fourth synchronizer unit and the fifth synchronizer unit are all meshed with the second gear set.

The second gear set comprises a sixteenth gear, an eighteenth gear, a twentieth gear and a twelfth gear which are sequentially arranged in the axial direction;

the second synchronizer unit is meshed with a sixteenth gear, the third synchronizer unit is meshed with an eighteenth gear, the fourth synchronizer unit is meshed with a twentieth gear, and the fourth synchronizer unit is meshed with a twentieth gear.

The power reversing module comprises a sixth shaft and a seventh shaft which are arranged in parallel;

the input end of the sixth shaft is connected with the output end of the synchronizer gear shifting module 3, a clutch and a clutch are arranged on the sixth shaft, the clutch is connected with an eighth shaft, a twenty-ninth gear is arranged on the eighth shaft, and the output end of the twenty-ninth gear is connected with the input end of the rear-drive power take-off module;

a twenty-fifth gear and a twenty-eighth gear are arranged on the seventh shaft, the clutch is meshed with the twenty-fifth gear through a twenty-third gear and a twenty-fourth gear, and the twenty-eighth gear is meshed with the twenty-ninth gear;

the twenty-fifth gear is connected with the input end of the front power take-off module.

The front drive power taking module comprises a twenty-sixth gear and a twenty-seventh gear which are meshed in sequence, and the twenty-seventh gear is connected with the eighth clutch;

the twenty-sixth gear is meshed with the twenty-fifth gear.

The power driving module is an engine.

Compared with the prior art, the invention has the following beneficial effects:

the invention discloses a power uninterrupted gear shifting transmission, wherein a plurality of groups of clutch units are arranged in a power gear shifting module through a first shaft, a second shaft and a third shaft, wherein a fourth clutch is arranged on the first shaft, the fourth clutch is connected with a hollow shaft, a first gear set is arranged on the hollow shaft, the clutch unit on the second shaft is combined with fifth to seventh clutch units on the third shaft through the first gear set, power is output, the clutch units are distributed and arranged through the matching of three parallel shafts and the hollow shaft, twelve transmission gears and routes are provided for the transmission, the axial distance of a transmission shaft of the transmission is reduced while gears are increased, meanwhile, more gear positions can ensure that the speed change range of a vehicle is wider, the output torque range is larger, so that the vehicle can better adapt to various complex road conditions and working conditions, the gear shifting power can be realized in the working process, the power interruption of the vehicle does not occur, the working efficiency is improved, the transmission can increase, decrease or change a single module or a plurality of modules according to specific needs through the modular connection, and the use range of the transmission is expanded.

Furthermore, in the invention, the synchronizer module comprises five groups of synchronizer units, any one group of synchronizer units can be selected to be combined according to working conditions, different speeds are output, more gear positions are realized by matching five gear shifting gears with twelve power transmission lines of the power gear shifting module, and wider speed regulation range and load adaptability can be achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Wherein: 1-a power drive module; 2-a power shift module; 3-a synchronous shift module; 4-a front drive power take-off module; 5-a power reversing module; 6-rear drive power take-off module; 7-a first clutch; 8-a second clutch; 9-a third clutch; 10-a fourth clutch; 11-a first gear; 12-a second gear; 13-a third gear; 14-a fourth gear; 15-fifth gear; 16-sixth gear; 17-a seventh gear; 18-eighth gear; 19-ninth gear; 20-tenth gear; 21-eleventh gear; 22-twelfth gear; 23-thirteenth gear; 24-a fourteenth gear; 25-fifteenth gear; 26-sixteenth gear; 27-seventeenth gear; 28-eighteenth gear; 29-nineteenth gear; 30-twentieth gear; 31-twenty-first gear; 32-a second twelve toothed wheel; 33-twenty-three gears; 34-twenty-fourth gear; 35-a twenty-fifth gear; 36-twenty-sixth gear; 37-twenty seventh gear; 38-a twenty-eighth gear; 39-twenty-ninth gear; 40-a fifth clutch; 41-six clutches; 42-seventh clutch; 43-a first synchronizer; 44-a second synchronizer; 45-a third synchronizer; 46-a fourth synchronizer; 47-a fifth synchronizer; 48-eighth clutch;

s1-a first axis; s2-second axis; s3-a third shaft; s4-fourth axis; s5-fifth axis; s6-sixth axis; s7-seventh axis; s8-eighth axis; s9-hollow shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1, the embodiment of the invention discloses a power uninterrupted transmission, which integrally adopts a transmission system arrangement mode combining a power shifting module (forward 12+ reverse 12) and a synchronous shifting module (5 gears), so that more gears (forward 12X5+ reverse 12X 5) are realized, and a wider speed regulation range and better load adaptability can be achieved; the synchronous gear shifting module can realize the adjustment of the vehicle speed in a larger range so as to match different operation requirements, the power gear shifting module can realize the adjustment of the vehicle speed in a small range so as to ensure that the driving feeling and the operability of the vehicle are better, and the synchronous gear shifting module and the power gear shifting module are connected in series and combined to realize the smooth change of the vehicle speed in a large range; and secondly, the four-wheel drive system is provided with the front drive power takeoff module and the rear drive power takeoff module, so that the four-wheel drive of the vehicle can be realized.

Example 1

The power reversing module 5 is respectively connected with a front driving force taking module 4 and a rear driving force taking module 6; the power shifting module 2 comprises a first shaft S1, a second shaft S2 and a third shaft S3 which are distributed in parallel; the input end of the first shaft S1 is connected with the output end of the power driving module 1, a fourth clutch 10 is arranged on the first shaft S1, the fourth clutch 10 is fixedly connected with the first shaft S1, the fourth clutch 10 is connected with the hollow shaft S9, the hollow shaft S9 is sleeved on the first shaft S1, a first gear set is arranged on the hollow shaft S9, a twelfth gear 22 is arranged on the first shaft S1, the twelfth gear 22 is arranged at one end close to the hollow shaft S9 and far away from the fourth clutch 10, a first clutch unit, a second clutch unit, a third clutch unit and an eleventh gear 21 are axially and sequentially arranged on the second shaft S2, the first clutch unit, the second clutch unit and the third clutch unit are all meshed with the first gear set, the eleventh gear 21 is meshed with the twelfth gear 22, a fifth clutch unit, a sixth clutch unit and a seventh clutch unit are axially and sequentially arranged on the third shaft S3, the fifth clutch unit, the sixth clutch unit and the seventh clutch unit are all meshed with the first gear set, and the shift input end of the third shaft S3 is connected with the synchronous input end of the gear set.

Example 2

Based on embodiment 1, the first gear set in this embodiment includes a second gear 12, a sixth gear 16, and a ninth gear 19, the second gear 12, the sixth gear 16, and the ninth gear 19 are axially disposed on a hollow shaft S9 and fixedly connected to the hollow shaft S9, wherein a first clutch 7, a second clutch 8, and a third clutch 9 are axially and sequentially fixed on a second shaft S2, a fifth clutch 40, a sixth clutch 41, and a seventh clutch 42 are axially and sequentially fixed on a third shaft S3, the first clutch 7 is connected to a first gear 11, the first gear 11 is engaged with the second gear 12, the second gear 12 is engaged with a third gear 13, and the third gear 13 is connected to the fifth clutch 40; the second clutch 8 is connected with the fourth gear 14, the fourth gear 14 is meshed with the fifth gear 15, the fifth gear 15 is meshed with the sixth gear 16, the sixth gear 16 is meshed with the seventh gear 17, the seventh gear 17 is connected with the sixth clutch 41, the third clutch 9 is connected with the eighth gear 18, the eighth gear 18 is meshed with the ninth gear 19, and the ninth gear 19 is connected with the seventh clutch 42.

Example 3

Based on the second embodiment, in the embodiment of the present invention, the synchronizer shift module 3 includes a fourth shaft S4 and a fifth shaft S5 which are distributed in parallel, wherein an input end of the fourth shaft S4 is connected to an output end of the third shaft S3, a fourteenth gear 14, a sixteenth gear 26, an eighteenth gear 28, a twentieth gear 30 and a twentieth gear 32 are axially fixed on the fourth shaft S4, wherein the fourteenth gear 14 is engaged with a thirteenth gear 23 provided on the fifth shaft S5, the fifth shaft S5 is further provided with a second synchronizer 44, a third synchronizer 45, a fourth synchronizer 46 and a fifth synchronizer 47 in sequence, the second synchronizer 44 is connected with a fifteenth gear 25 through a spline, the fifteenth gear 25 is engaged with the sixteenth gear 26, the third synchronizer 45 is connected with a seventeenth gear 27 through a spline, the seventeenth gear 27 is engaged with the eighteenth gear 28, the fourth synchronizer 46 is connected with a nineteenth gear 29 through a spline, the nineteenth gear 29 is engaged with the twentieth gear 30, and the fifth synchronizer 47 is connected with the twenty-first gear 31 and the twenty-second gear 32 through a spline.

Example 4

Based on the 3 rd embodiment, in this embodiment, the power reversing module 5 includes a sixth shaft S6 and a seventh shaft S7 which are arranged in parallel, an output end of the fourth shaft S4 is connected to an input end of the sixth shaft S6, and an output end of the sixth shaft S6 is connected to an input end of the rear drive power take-off module 6.

Specifically, a clutch R and a clutch F are axially and sequentially arranged on the sixth shaft S6, wherein the clutch R is connected with the twenty-third gear 33, the clutch F is connected with the eighth shaft S8, the eighth shaft S8 and the sixth shaft S6 are coaxially distributed, the eighth shaft S8 is fixedly provided with a twenty-ninth gear 39, the seventh shaft S7 is axially and sequentially fixedly provided with a twenty-fifth gear 35 and a twenty-eighth gear 38, the twenty-fifth gear 35 is meshed with the twenty-third gear 33 through a twenty-fourteenth gear 34, and the twenty-eighth gear 38 is meshed with the twenty-ninth gear 39.

The front power take-off module 4 comprises a twenty-sixth gear 36 and a twenty-seventh gear 37 which are meshed in sequence, the twenty-seventh gear 37 is connected with an eighth clutch 48, and the twenty-sixth gear 36 is meshed with the twenty-fifth gear 35.

The power driving module 1 disclosed by the embodiment of the invention is an engine.

The transmission route principle of the embodiment of the invention is as follows:

1. the power of the engine is transmitted to a first shaft S1 in the power shifting module 2;

2. in the power shift module 2, any one of the first clutch 7, the second clutch 8, the third clutch 9 and the fourth clutch 10 may be engaged to transmit power to the third shaft S3 by engagement of gears, and may be engaged with any one of the first clutch 7, the second clutch 8 and the third clutch 9 on the third shaft S3 to further output power, specifically, the first shaft S1 transmits power to the second shaft S2 through the twelfth gear 22 and the eleventh gear 21, the gears corresponding to the first clutch 7, the second clutch 8 or the third clutch 9 on the second shaft S2 transmit power to the hollow shaft S9, the hollow shaft S9 transmits power to the fifth clutch 40, the sixth clutch 41 or the seventh clutch 42 provided on the third shaft S3 through the second gear 12, the sixth gear 16 or the ninth gear 19, and the fourth clutch 10 transmits power to the third shaft S3 through the hollow shaft S9.

In the power shifting module 2, only one of the first clutch 7 to the fourth clutch 10 is allowed to be combined, and only one of the fifth clutch 40 to the seventh clutch 42 is allowed to be combined with the same during gear selection, and here, the power shifting module 2 has 4X3 power transmission routes, namely 12 speeds can be output under single input;

the power shift module 2 transfers power to the synchronous shift module 3 through the third shaft S3;

3. any of the five synchronizers in the synchronous shift module 3 are engaged (i.e., only 1 engagement is allowed), and here it can be seen that the synchronous shift module 3 can output 5 speeds at a single input;

the synchronous gear shifting module 3 transmits power to the power reversing module 5 through a fourth shaft S4;

any one of the two R/F clutches in the power reversing module 5 is combined (only 2-to-1 is allowed); here, it can be seen that the power reversing module 5 can output 2 speeds at a single input;

the power reversing module 5 transmits power to the rear drive power take-off module 6 through an eighth shaft S8;

meanwhile, the power is transmitted to the front drive power module 4 by an R clutch side intermediate shaft gear arranged on the power reversing module 5; with the F clutch engaged, the front drive module 4 also has power input.

At this point, the power of the engine has been transferred to both drive modules and the operation is complete.

From the above, the embodiment of the invention has 4X3X5X2 power transmission routes for use, and has wider speed coverage range and better working condition applicability compared with a common transmission, the embodiment of the invention provides more gear positions, which not only can make the speed change range of the vehicle wider, but also can make the output torque range larger, so that the vehicle can better adapt to various complex road conditions and working conditions, power shifting can be realized in the operation process, the vehicle does not have power interruption, the operation efficiency is improved, and by adopting a modular design, a single module or a plurality of modules can be increased or decreased or changed according to specific needs, and the use range of the transmission is expanded.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A power uninterrupted gear shifting transmission is characterized by comprising a power driving module (1), wherein the output end of the power driving module (1) is sequentially connected with a power gear shifting module (2), a synchronous gear shifting module (3) and a power reversing module (5), and the power reversing module (5) is respectively connected with a front driving power taking module (4) and a rear driving power taking module (6);

the power gear shifting module (2) comprises a first shaft (S1), a second shaft (S2) and a third shaft (S3) which are distributed in parallel;

the input end of the first shaft (S1) is connected with the output end of the power driving module (1), a fourth clutch (10) and a twelfth gear (22) are axially and sequentially arranged on the first shaft (S1), and the fourth clutch (10) is connected with a hollow shaft (S9);

be provided with first gear train on hollow shaft (S9), axial has set gradually first clutch unit, second clutch unit, third clutch unit and eleventh gear (21) on second shaft (S2), first clutch unit, second clutch unit and third clutch unit all with the meshing of first gear train, eleventh gear (21) and twelfth gear (22) meshing, axial has set gradually fifth clutch unit, sixth clutch unit and seventh clutch unit on third shaft (S3), fifth clutch unit, sixth clutch unit and seventh clutch unit all with the meshing of first gear train, the input of synchronous gearshift module (3) is connected to the output of third shaft (S3).

2. A power uninterrupted shift transmission as claimed in claim 1, characterized in that said first gear set comprises axially disposed second (12), sixth (16) and ninth gears (19);

the first clutch unit engages the second gear (12) and the fifth clutch unit in sequence;

the second clutch unit engages a sixth gear (16) and a sixth clutch unit in sequence;

the third clutch unit engages a ninth gear (19) and a seventh clutch unit in sequence.

3. A power-uninterrupted gear change transmission according to claim 2, characterized in that the first clutch unit comprises a first clutch (7), the first clutch (7) is fixedly connected with the second shaft (S2), the first clutch (7) is connected with a first gear (11), and the first gear (11) is meshed with a second gear (12).

4. A power uninterrupted gear change transmission according to claim 2, characterized in that the second clutch unit comprises a second clutch (8), the second clutch (8) being fast with the second shaft (S2), the second clutch (8) being connected to a fourth gear (14), the fourth gear (14) engaging a sixth gear (16) via a fifth gear (15).

5. A power uninterrupted gear change transmission according to claim 2, characterized in that the third clutch unit comprises a third clutch (9), the third clutch (9) is fixedly connected with the second shaft (S2), the third clutch (9) is connected with an eighth gear (18), and the eighth gear (18) is meshed with a ninth gear (19).

6. A power uninterrupted shift transmission according to claim 1, characterized in that said synchronizer shift module (3) comprises a fourth shaft (S4) and a fifth shaft (S5) arranged in parallel;

the input end of the fourth shaft (S4) is connected with the output end of the third shaft (S3), and the output end of the fourth shaft (S4) is connected with the input end of the power reversing module (5);

a fourteenth gear (24), a first synchronizer (43) and a second gear set are sequentially arranged on the fourth shaft (S4) in the axial direction, a thirteenth gear (23), a second synchronizer unit, a third synchronizer unit, a fourth synchronizer unit and a fifth synchronizer unit are sequentially arranged on the fifth shaft (S5) in the axial direction, the fourteenth gear (24) is meshed with the thirteenth gear (23), and the second synchronizer unit, the third synchronizer unit, the fourth synchronizer unit and the fifth synchronizer unit are all meshed with the second gear set.

7. A power-uninterrupted gear change transmission according to claim 6, characterized in that the second gear set comprises a sixteenth gear (26), an eighteenth gear (28), a twentieth gear (30) and a twenty-second gear (32) arranged axially in sequence;

the second synchronizer unit is engaged with a sixteenth gear (26), the third synchronizer unit is engaged with an eighteenth gear (28), the fourth synchronizer unit is engaged with a twentieth gear (30), and the fourth synchronizer unit is engaged with a second twentieth gear (32).

8. A power-uninterrupted gear change transmission according to claim 1, characterized in that the power reversing module (5) comprises a sixth shaft (S6) and a seventh shaft (S7) arranged in parallel;

the input end of the sixth shaft (S6) is connected with the output end of the synchronizer gear shifting module 3, a clutch (R) and a clutch (F) are arranged on the sixth shaft (S6), the clutch (F) is connected with an eighth shaft (S8), a twenty-ninth gear (39) is arranged on the eighth shaft (S8), and the output end of the twenty-ninth gear (39) is connected with the input end of the rear-drive power take-off module (6);

a twenty-fifth gear (35) and a twenty-eighth gear (38) are arranged on the seventh shaft (S7), the clutch (R) is meshed with the twenty-fifth gear (35) through a twenty-third gear (33) and a twenty-fourth gear (34), and the twenty-eighth gear (38) is meshed with a twenty-ninth gear (39);

the twenty-fifth gear (35) is connected with the input end of the front power taking module (4).

9. A power-uninterrupted gear change transmission according to claim 8, characterized in that the front drive power module (4) comprises a twenty-sixth gear (36) and a twenty-seventh gear (37) meshing in sequence, the twenty-seventh gear (37) being connected to an eighth clutch (48);

the twenty-sixth gear (36) meshes with the twenty-fifth gear (35).

10. A power-uninterrupted gear change transmission according to any of claims 1-9, characterized in that the power drive module (1) is an engine.

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