CN216555171U

CN216555171U - Speed changer

Info

Publication number: CN216555171U
Application number: CN202123133275.7U
Authority: CN
Inventors: 全忠毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-17
Anticipated expiration: 2031-12-14
Also published as: WO2023109838A1

Abstract

The utility model discloses a transmission.A flywheel is in transmission connection with an input shaft, the input shaft is rotatably connected with a first input gear set and a second input gear set, an input synchronizer is arranged between the first input gear set and the second input gear set, and the input synchronizer is arranged on the input shaft in a sliding manner; a first gear, a third gear, a fourth gear and a second gear are sequentially connected to the first output shaft from one end to the other end in a rotating mode, a first synchronizer is arranged between the first gear and the third gear, a second synchronizer is arranged between the second gear and the fourth gear, and the first synchronizer and the second synchronizer are arranged on the first output shaft in a sliding mode; the first gear and the third gear are simultaneously in meshing transmission with the first input gear set, and the second gear and the fourth gear are simultaneously in meshing transmission with the second input gear set; the end part of the first output shaft is also provided with a first output gear, a main reduction gear is arranged on a rotating shaft of the differential mechanism, and the main reduction gear is meshed with the first output gear.

Description

Speed changer

Technical Field

The utility model relates to the technical field of transmissions, in particular to a transmission.

Background

A transmission is a mechanism for changing the speed and torque from an engine, which can change the ratio of the output shaft to the input shaft, either fixed or in steps, also known as a gearbox. The speed variator consists of speed-varying transmission mechanism and control mechanism, and some vehicles also have power output mechanism. The transmission mechanism is mainly used for common gear transmission, and also can be used for planetary gear transmission. The common gear transmission mechanism generally uses a sliding gear, a synchronizer and the like.

The AMT gearbox is improved on the basis of the traditional manual gear type transmission; the mechanical-electrical-hydraulic integrated automatic transmission combines the advantages of AT and MT; the AMT has the advantages of automatic speed change of a common automatic transmission, and retains the advantages of high efficiency, low cost, simple structure and easiness in manufacturing of the gear transmission of the original manual transmission. The manual transmission is modified on the existing manual transmission, most of the original assembly components are reserved, only the gear shifting rod part of a manual operation system is changed, the production inheritance is good, and the modification investment cost is low.

The transmission in the prior art has the advantages of complex gear shifting operation, redundant structure, higher production cost and fewer shifted gears.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to a transmission that solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the utility model provides the following technical scheme:

according to a first aspect of the present invention, a transmission comprises an input shaft, a first output shaft, a flywheel, a differential, a final reduction gear, a first gear, a second gear, a third gear, a fourth gear, a first input gear set, a second input gear set, a first synchronizer, a second synchronizer, an input synchronizer, and a first output gear;

the flywheel is in transmission connection with one end of the input shaft, the first input gear set and the second input gear set are connected to the input shaft in a rotating mode, the input synchronizer is arranged between the first input gear set and the second input gear set, and the input synchronizer is arranged on the input shaft in a sliding mode;

the first gear, the third gear, the fourth gear and the second gear are sequentially connected to the first output shaft from one end to the other end in a rotating manner, the first synchronizer is arranged between the first gear and the third gear, the second synchronizer is arranged between the second gear and the fourth gear, and the first synchronizer and the second synchronizer are both arranged on the first output shaft in a sliding manner;

the first gear and the third gear are in mesh transmission with the first input gear set at the same time, and the second gear and the fourth gear are in mesh transmission with the second input gear set at the same time;

the end part of the first output shaft is also provided with the first output gear, the rotating shaft of the differential is provided with the main reduction gear, and the main reduction gear is in meshing transmission with the first output gear.

Further, the flywheel and one end of the input shaft are in transmission connection through the clutch.

Further, the device also comprises a second output shaft, a fifth gear, a sixth gear, a third synchronizer and a second output gear;

the second output shaft is sequentially connected with the fifth gear and the sixth gear from one end to the other end in a rotating manner, the third synchronizer is arranged between the fifth gear and the sixth gear and is arranged on the second output shaft in a sliding manner, and the fifth gear and the sixth gear are in meshing transmission with the first input gear set;

the end part of the second output shaft is provided with the second output gear, and the second output gear is in meshing transmission with the main reduction gear.

The transmission also comprises a seventh gear, a first reverse gear, a second reverse gear, a fourth synchronizer, a reverse gear output shaft, a reverse gear synchronizer and a third output gear;

the second output shaft is also rotatably connected with a seventh gear and the first reverse gear, a fourth synchronizer is arranged between the seventh gear and the first reverse gear, the fourth synchronizer is arranged on the second output shaft in a sliding manner, and the seventh gear and the first reverse gear are in meshing transmission with the second input gear set;

the second reverse gear is installed on the reverse gear output shaft, the reverse gear output shaft is provided with the reverse gear synchronizer in a sliding mode, the second reverse gear is in meshing transmission with the first reverse gear, the end portion of the reverse gear output shaft is provided with the third output gear, and the third output gear is in meshing transmission with the main reduction gear.

Further, the first input gear set and the second input gear set are both rotatably connected to the input shaft through bearings.

Further, the first gear, the second gear, the third gear and the fourth gear are all rotatably connected to the first output shaft through bearings.

Furthermore, the fifth gear, the sixth gear, the seventh gear and the first reverse gear are all rotatably connected to the second output shaft through bearings, and the second reverse gear is rotatably connected to the reverse gear output shaft through bearings.

Further, the input synchronizer is slidably disposed on the input shaft through a spline connection.

Further, the first synchronizer and the second synchronizer are arranged on the first output shaft in a sliding mode through spline connection.

Further, the third synchronizer and the fourth synchronizer are slidably arranged on the second output shaft through spline connection.

The utility model has the following advantages: the transmission is simple in structure, the number of replaceable gears is increased remarkably, the gear shifting efficiency is improved remarkably, the operation is convenient and fast, and the processing cost is reduced greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a front view of a transmission according to some embodiments of the present invention.

FIG. 2 is a side view of a transmission in partial configuration according to some embodiments of the present invention.

In the figure: 1. input shaft, 2, first output shaft, 3, second output shaft, 4, reverse output shaft, 5, flywheel, 6, differential, 7, final reduction gear, 8, clutch, 9, first gear, 10, second gear, 11, third gear, 12, fourth gear, 13, first input gear set, 14, second input gear set, 15, fifth gear, 16, sixth gear, 17, seventh gear, 18, first reverse gear, 19, second reverse gear, 20, first synchronizer, 21, second synchronizer, 22, input synchronizer, 23, third synchronizer, 24, fourth synchronizer, 25, first output gear, 26, second output gear, 27, third output gear, 28, reverse synchronizer.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. 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.

As shown in fig. 1 and 2, a transmission in an embodiment of a first aspect of the present invention includes an input shaft 1, a first output shaft 2, a flywheel 5, a differential 6, a final reduction gear 7, a first gear 9, a second gear 10, a third gear 11, a fourth gear 12, a first input gear set 13, a second input gear set 14, a first synchronizer 20, a second synchronizer 21, an input synchronizer 22, and a first output gear 25; the flywheel 5 is in transmission connection with one end of the input shaft 1, the input shaft 1 is rotatably connected with a first input gear set 13 and a second input gear set 14, an input synchronizer 22 is arranged between the first input gear set 13 and the second input gear set 14, and the input synchronizer 22 is arranged on the input shaft 1 in a sliding mode; a first gear 9, a third gear 11, a fourth gear 12 and a second gear 10 are sequentially connected to the first output shaft 2 from one end to the other end in a rotating manner, a first synchronizer 20 is arranged between the first gear 9 and the third gear 11, a second synchronizer 21 is arranged between the second gear 10 and the fourth gear 12, and the first synchronizer 20 and the second synchronizer 21 are both arranged on the first output shaft 2 in a sliding manner; the first gear 9 and the third gear 11 are in mesh transmission with a first input gear set 13 at the same time, and the second gear 10 and the fourth gear 12 are in mesh transmission with a second input gear set 14 at the same time; the end part of the first output shaft 2 is also provided with a first output gear 25, a main reduction gear 7 is arranged on a rotating shaft of the differential mechanism 6, and the main reduction gear 7 is in meshing transmission with the first output gear 25.

In the above embodiments, it should be noted that the synchronizers in the above embodiments and the following embodiments are all the structures of the prior art, and are consistent with the synchronizers in the manual transmission; if in the prior art, the gearbox is provided with the shift fork, and the shift fork drives the synchronizer motion, and then realizes shifting gears, as in the prior art, the gearbox still is provided with control module, drives the shift fork motion through motor drive or hydraulic drive's mode.

The technical effects achieved by the above embodiment are as follows: the transmission is simple in structure, the number of replaceable gears is increased remarkably, the gear shifting efficiency is improved remarkably, the operation is convenient and fast, and the processing cost is reduced greatly; the power transmission efficiency is high, the pre-shifting design is adopted, the shifting time interval is short, and the market popularization is easy.

Optionally, as shown in fig. 1 and fig. 2, in some embodiments, a clutch 8 is further included, and the flywheel 5 is in transmission connection with one end of the input shaft 1 through the clutch 8.

In the above alternative embodiment, it should be noted that the clutch 8 is a prior art clutch.

The beneficial effects of the above alternative embodiment are: by providing the clutch 8, the driving effect of power cut-off and power transmission between the flywheel 5 and the input shaft 1 is achieved.

Optionally, as shown in fig. 1 and 2, in some embodiments, the second output shaft 3, the fifth gear 15, the sixth gear 16, the third synchronizer 23, and the second output gear 26 are further included; a fifth gear 15 and a sixth gear 16 are sequentially connected to the second output shaft 3 from one end to the other end in a rotating manner, a third synchronizer 23 is arranged between the fifth gear 15 and the sixth gear 16, the third synchronizer 23 is arranged on the second output shaft 3 in a sliding manner, and the fifth gear 15 and the sixth gear 16 are in meshing transmission with the first input gear set 13; the end of the second output shaft 3 is provided with a second output gear 26, and the second output gear 26 is in mesh transmission with the main reduction gear 7.

Optionally, as shown in fig. 1 and 2, in some embodiments, the seventh gear 17, the first reverse gear 18, the second reverse gear 19, the fourth synchronizer 24, the reverse output shaft 4, the reverse synchronizer 28, and the third output gear 27 are further included; the second output shaft 3 is also rotatably connected with a seventh gear 17 and a first reverse gear 18, a fourth synchronizer 24 is arranged between the seventh gear 17 and the first reverse gear 18, the fourth synchronizer 24 is arranged on the second output shaft 3 in a sliding manner, and the seventh gear 17 and the first reverse gear 18 are in meshing transmission with the second input gear set 14; the second reverse gear 19 is installed on the reverse gear output shaft 4, the reverse gear synchronizer 28 is arranged on the reverse gear output shaft 4 in a sliding mode, the second reverse gear 19 is in meshed transmission with the first reverse gear 18, the end portion of the reverse gear output shaft 4 is provided with a third output gear 27, and the third output gear 27 is in meshed transmission with the main reduction gear 7.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the first input gearset 13 and the second input gearset 14 are each rotatably connected to the input shaft 1 by bearings.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the first gear 9, the second gear 10, the third gear 11, and the fourth gear 12 are all rotatably connected to the first output shaft 2 through bearings.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the fifth gear 15, the sixth gear 16, the seventh gear 17, and the first reverse gear 18 are all rotatably coupled to the second output shaft 3 via bearings, and the second reverse gear 19 is rotatably coupled to the reverse output shaft 4 via bearings.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the input synchronizer 22 is slidably disposed on the input shaft 1 through a splined connection.

In the above alternative embodiment, it should be noted that, in addition, the input synchronizer 22 may be slidably disposed on the input shaft 1 by other means.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the first synchronizer 20 and the second synchronizer 21 are slidably disposed on the first output shaft 2 through a spline connection.

In the above-mentioned alternative embodiment, it should be noted that, in addition, the first synchronizer 20 and the second synchronizer 21 may also be slidably disposed on the first output shaft 2 by other manners.

Alternatively, as shown in fig. 1 and 2, in some embodiments, the third synchronizer 23 and the fourth synchronizer 24 are slidably disposed on the second output shaft 3 through a spline connection.

In the above-mentioned alternative embodiment, it should be noted that, in addition, the third synchronizer 23 and the fourth synchronizer 24 may also be slidably disposed on the second output shaft 3 by other manners.

The working principle of the above embodiment is as follows: the first input gear set 13 controls and drives the first gear 9, the third gear 11, the fifth gear 15 and the sixth gear 16; the second input gear set 14 controls the second gear 10, the fourth gear 12, the seventh gear 17 and the first reverse gear 18.

The gear corresponding relation is as follows: the first gear 9 corresponds to a first gear, the second gear 10 corresponds to a second gear, the third gear 11 corresponds to a third gear, the fourth gear 12 corresponds to a fourth gear, the fifth gear 15 corresponds to a fifth gear, the seventh gear 17 corresponds to a sixth gear, and the sixth gear 16 corresponds to a seventh gear.

As in the prior art, the control module drives the clutch to be disconnected and combined through motor drive or hydraulic drive to drive the shifting fork to shift the synchronizer to move, when the clutch 8 is disconnected, the first gear 9 is combined with the first synchronizer 20, the first input gear set 13 is combined with the input synchronizer 22, and then the clutch 8 is combined to realize power transmission of 1 gear; the second gear 10 and the second synchronizer 21 are combined in advance, at the moment, the second input gear set 14 is in an idle state, when the gear is switched to the 2-gear, the clutch 8 is disconnected, the control module drives a shifting fork to shift the synchronizer to move through motor driving or hydraulic driving, the input synchronizer 22 is combined with the second input gear set 14, and then the clutch 8 is combined to realize the 2-gear power transmission at the moment; meanwhile, the same principle is used for reducing the gear, when the gear is in the 6 gear, the fifth gear 15 and the third synchronizer 23 are combined in advance, and when the gear is shifted, the clutch 8 is disconnected, and the first input gear set 13 and the input synchronizer 22 are combined, so that the gear shifting in the 5 gear is realized.

Reverse power is transmitted from the second input gear set 14 to the second reverse gear 19 via the first reverse gear 18, and reverse is achieved, and the first output gear 25, the second output gear 26, and the third output gear 27 are simultaneously in meshing transmission with the main reduction gear 7.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.

Claims

1. A transmission is characterized by comprising an input shaft (1), a first output shaft (2), a flywheel (5), a differential (6), a main reduction gear (7), a first gear (9), a second gear (10), a third gear (11), a fourth gear (12), a first input gear set (13), a second input gear set (14), a first synchronizer (20), a second synchronizer (21), an input synchronizer (22) and a first output gear (25);

the flywheel (5) is in transmission connection with one end of the input shaft (1), the input shaft (1) is connected with the first input gear set (13) and the second input gear set (14) in a rotating mode, the input synchronizer (22) is arranged between the first input gear set (13) and the second input gear set (14), and the input synchronizer (22) is arranged on the input shaft (1) in a sliding mode;

the first gear (9), the third gear (11), the fourth gear (12) and the second gear (10) are sequentially connected to the first output shaft (2) from one end to the other end in a rotating mode, the first synchronizer (20) is arranged between the first gear (9) and the third gear (11), the second synchronizer (21) is arranged between the second gear (10) and the fourth gear (12), and the first synchronizer (20) and the second synchronizer (21) are arranged on the first output shaft (2) in a sliding mode;

the first gear (9) and the third gear (11) are in mesh transmission with the first input gear set (13) at the same time, and the second gear (10) and the fourth gear (12) are in mesh transmission with the second input gear set (14) at the same time;

the end part of the first output shaft (2) is further provided with a first output gear (25), the rotating shaft of the differential (6) is provided with the main reduction gear (7), and the main reduction gear (7) and the first output gear (25) are in meshing transmission.

2. A transmission according to claim 1, further comprising a clutch (8), wherein the flywheel (5) is in driving connection with one end of the input shaft (1) via the clutch (8).

3. A transmission according to claim 2, further comprising a second output shaft (3), a fifth gear (15), a sixth gear (16), a third synchronizer (23) and a second output gear (26);

the fifth gear (15) and the sixth gear (16) are sequentially connected to the second output shaft (3) from one end to the other end in a rotating mode, a third synchronizer (23) is arranged between the fifth gear (15) and the sixth gear (16), the third synchronizer (23) is arranged on the second output shaft (3) in a sliding mode, and the fifth gear (15) and the sixth gear (16) are in meshing transmission with the first input gear set (13);

the end part of the second output shaft (3) is provided with the second output gear (26), and the second output gear (26) is in meshing transmission with the main reduction gear (7).

4. A transmission according to claim 3, characterized by a seventh gear (17), a first reverse gear (18), a second reverse gear (19), a fourth synchronizer (24), a reverse output shaft (4), a reverse synchronizer (28), and a third output gear (27);

the second output shaft (3) is further rotatably connected with a seventh gear (17) and a first reverse gear (18), a fourth synchronizer (24) is arranged between the seventh gear (17) and the first reverse gear (18), the fourth synchronizer (24) is arranged on the second output shaft (3) in a sliding manner, and the seventh gear (17) and the first reverse gear (18) are in meshing transmission with the second input gear set (14);

the second reverse gear (19) is installed on the reverse gear output shaft (4), it is provided with to slide on the reverse gear output shaft (4) reverse gear synchronous ware (28), second reverse gear (19) with first reverse gear (18) meshing transmission, the tip of reverse gear output shaft (4) is provided with third output gear (27), third output gear (27) with main reducing gear (7) meshing transmission.

5. A transmission according to claim 4, characterised in that the first input gearset (13) and the second input gearset (14) are each rotatably connected to the input shaft (1) by bearings.

6. A transmission according to claim 5, characterised in that the first gear wheel (9), the second gear wheel (10), the third gear wheel (11) and the fourth gear wheel (12) are all rotatably connected to the first output shaft (2) by means of bearings.

7. A transmission according to claim 6, characterised in that the fifth gear wheel (15), the sixth gear wheel (16), the seventh gear wheel (17) and the first reverse gear wheel (18) are all rotatably journalled in the second output shaft (3) and that the second reverse gear wheel (19) is rotatably journalled in the reverse output shaft (4).

8. A transmission according to claim 7, characterised in that the input synchroniser (22) is slidingly arranged on the input shaft (1) by means of a splined connection.

9. A transmission according to claim 8, characterised in that the first synchronizer (20) and the second synchronizer (21) are both slidably arranged on the first output shaft (2) by means of a splined connection.

10. A transmission according to claim 9, characterised in that the third synchronizer (23) and the fourth synchronizer (24) are slidably arranged on the second output shaft (3) by means of a splined connection.