CN211975784U

CN211975784U - Double-intermediate-shaft transmission adopting double internal meshing planetary mechanism

Info

Publication number: CN211975784U
Application number: CN202020208603.1U
Authority: CN
Inventors: 张志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-11-20
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a double-intermediate shaft speed changer adopting a double inner gearing planetary mechanism, wherein the input end and the output end of the double-intermediate shaft mechanism are both rotationally connected on a shell, and the input end and the output end of the double inner gearing planetary mechanism are both rotationally connected on the shell; the input end and/or the output end of the double-intermediate shaft mechanism is connected with at least one double internal meshing planetary mechanism. Aim at solves the problem that the service life of the auxiliary box of the existing double-intermediate shaft transmission is low. The effect is as follows: the double-intermediate-shaft mechanism realizes power split, enhances the bearing capacity of the gear and has compact structure; the gear transmission of the double internal meshing planetary mechanism only carries out power transmission through a planetary gear ring with an internal gear and an external gear, the planetary gear ring does not have the problem of uneven load of the traditional planetary gear train, a special load balancing mechanism is not required to be designed, the structure is simple, and transmission parts are reduced; the double inner gearing planetary mechanism can be set into a multi-group combination of two or more than two according to practical application, the gear number of the speed changer is multiplied, the speed ratio is large, and the transmission torque is large.

Description

Double-intermediate-shaft transmission adopting double internal meshing planetary mechanism

Technical Field

The utility model relates to a derailleur technical field, concretely relates to adopt two jackshaft derailleurs of two inner gearing planetary mechanism.

Background

The combination of a double-intermediate shaft transmission and a planetary mechanism is a typical scheme in the structure of a transmission of a heavy-duty automobile; the double-intermediate-shaft transmission has the advantages of strong bearing capacity, compact structure, light weight and the like, on the basis of the original transmission, the number of gears is increased by times by adding the auxiliary box of the planetary mechanism, and the double-intermediate-shaft transmission has the advantages of large speed ratio, small volume and large transmission torque.

The traditional planetary mechanism has high requirements on the precision of parts, so that the manufacturing cost is increased, and because of the influence of factors such as manufacturing errors, installation errors, component deformation and the like, the load among the planet wheels of the traditional planetary mechanism is unevenly distributed, the transmission quality is reduced, and in order to solve the problem, a special load balancing mechanism must be designed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an adopt two jackshaft derailleurs of two inner gearing planetary mechanism to solve the problem that two jackshaft derailleur auxiliary tanks are low in life-span among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

according to a first aspect of the present invention, a dual countershaft transmission employing a dual intermeshing planetary mechanism includes a dual countershaft mechanism, a dual intermeshing planetary mechanism, and a housing; the input end and the output end of the double middle shaft mechanism are both rotationally connected to the shell, and the input end and the output end of the double internal meshing planetary mechanism are both rotationally connected to the shell; the input end and/or the output end of the double-intermediate shaft mechanism is connected with at least one double internal meshing planetary mechanism.

Furthermore, at least one double internal meshing planetary mechanism at the input end of the double-intermediate shaft mechanism is connected end to end in sequence.

Furthermore, at least one double internal meshing planetary mechanism at the output end of the double-intermediate shaft mechanism is connected end to end in sequence.

Further, the double internal meshing planetary mechanism comprises a sun gear, a planet carrier, a planetary gear ring and an inner gear ring; the input end of the sun gear is the input end of the double internal meshing planetary mechanism, and the tail end of the planet carrier is the output end of the double internal meshing planetary mechanism; the sun gear is in meshing transmission with the inner ring of the planet gear ring, the outer ring of the planet gear ring is in meshing transmission with the inner ring gear, the center of the planet gear ring is fixed at the front end of the planet carrier, and the tail end of the planet carrier penetrates through the inner ring gear and is rotationally connected with the shell.

Further, the double internal meshing planetary mechanism is mounted at the input end of the double-intermediate shaft mechanism, and the tail end of the planet carrier is used as the output end of the double internal meshing planetary mechanism and is connected with the input end of the double-intermediate shaft mechanism.

Further, the double internal meshing planetary mechanism is mounted at the output end of the double-intermediate shaft mechanism, and the input end of the male wheel is used as the input end of the double internal meshing planetary mechanism and is connected with the output end of the double-intermediate shaft mechanism.

Further, the double inner meshing planetary mechanism is arranged at two ends of the input end and the output end of the double middle shaft mechanism; the tail end of the planet carrier is used as the output end of the double internal engagement planetary mechanism and is connected with the input end of the double middle shaft mechanism to form preposed installation; the input end of the male gear is used as the input end of the double internal engagement planetary mechanism and is connected with the output end of the double middle shaft mechanism to form the rear-mounted structure.

Furthermore, when the inner gear ring is connected with the shell, power is transmitted to the planet carrier to be output after passing through the sun gear and the planet gear ring, so that the speed is reduced to form a low gear.

Furthermore, the inner gear ring is connected with the planet carrier, the planetary mechanism is locked, the sun gear and the planet carrier do not rotate relatively, and the speed ratio of the double inner meshing planetary mechanism is 1, so that a high gear is formed.

Further, the internal structure of at least one of the double internal meshing planetary mechanisms is identical.

The utility model has the advantages of as follows: the double-intermediate-shaft mechanism realizes power split, enhances the bearing capacity of the gear and has compact structure; the gear transmission of the double internal meshing planetary mechanism only carries out power transmission through a planetary gear ring with an internal gear and an external gear, the planetary gear ring has no problem of uneven load, a special load balancing mechanism does not need to be designed, the structure is simple, and transmission parts are reduced; the double inner gearing planetary mechanism can be set into a multi-group combination of two or more than two according to practical application, so that the gear number of the speed changer is multiplied, the speed ratio is large, and the transmission torque is large.

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 structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a cross-sectional structural view of a dual countershaft transmission employing a dual inter-meshing planetary mechanism according to some embodiments of the present invention.

Fig. 2 is a cross-sectional structural view of a dual countershaft transmission using a dual intermeshing planetary mechanism according to another embodiment of the present invention.

Fig. 3 is a cross-sectional structural view of a dual countershaft transmission incorporating a dual intermeshing planetary mechanism according to further embodiments of the present invention.

Fig. 4 is a cross-sectional structural view of a dual countershaft transmission incorporating a dual intermeshing planetary mechanism according to further embodiments of the present invention.

Fig. 5 is a cross-sectional structural view of a dual countershaft transmission incorporating a dual intermeshing planetary mechanism according to further embodiments of the present invention.

Fig. 6 is a cross-sectional structural view of a dual intermeshing planetary mechanism in a dual countershaft transmission according to some embodiments of the present invention.

In the figure: 1. double-intermediate-shaft mechanism 2, double-internal-meshing planetary mechanism 21, sun gear 22, planet carrier 23, planetary gear ring 24, inner gear ring 3 and shell.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in any one of fig. 1 to 5, a dual countershaft transmission using a dual internal meshing planetary mechanism according to the present embodiment includes a dual countershaft mechanism 1, a dual internal meshing planetary mechanism 2, and a housing 3; the input end and the output end of the double-intermediate-shaft mechanism 1 are both rotationally connected to the shell 3, and the input end and the output end of the double-inner-meshing planetary mechanism 2 are both rotationally connected to the shell 3; the input and/or output of the double countershaft mechanism 1 is connected with at least one double internal meshing planetary mechanism 2.

The technical effect that this embodiment reaches does: the double-intermediate-shaft mechanism 1 realizes power split, enhances the bearing capacity of gears and has compact structure; the gear transmission of the double internal meshing planetary mechanism 2 is realized by only one planetary gear ring 23 with an internal gear and an external gear, the planetary gear ring 23 has no problem of uneven load, a special load balancing mechanism does not need to be designed, the structure is simple, and the number of transmission parts is reduced; the double internal engagement planetary mechanism 2 can be set into a multi-group combination of two or more than two according to practical application, so that the gear number of the speed changer is multiplied, the speed ratio is large, and the transmission torque is large.

Example 2

As shown in fig. 3 and 5, a double countershaft transmission using a double intermeshing planetary mechanism according to the present embodiment includes all the technical features of embodiment 1, except that at least one double intermeshing planetary mechanism 2 at the input end of the double countershaft mechanism 1 is connected end to end; at least one double internal meshing planetary mechanism 2 at the output end of the double-intermediate shaft mechanism 1 is sequentially connected end to end; the internal structure of at least one double internal meshing planetary mechanism 2 is identical.

The beneficial effects in this embodiment are: this embodiment simple structure through setting up the two inner gearing planetary mechanism 2 of the same structure, has realized standardized installation, has improved the packaging efficiency, has saved the equipment time.

Example 3

As shown in fig. 1 and 6, a double countershaft transmission employing a double internal planetary gear mechanism according to the present embodiment includes all the technical features of embodiment 1, and in addition, a double internal planetary gear mechanism 2 includes a sun gear 21, a carrier 22, a ring gear 23, and a ring gear 24; the input end of the sun gear 21 is the input end of the double internal engagement planetary mechanism 2, and the tail end of the planet carrier 22 is the output end of the double internal engagement planetary mechanism 2; the sun gear 21 is in meshing transmission with the inner ring of the planet gear ring 23, the outer ring of the planet gear ring 23 is in meshing transmission with the inner ring gear 24, the center of the planet gear ring 23 is fixed at the front end of the planet carrier 22, and the tail end of the planet carrier 22 penetrates through the inner ring gear 24 and is rotationally connected with the shell 3.

The beneficial effects in this embodiment are: the gear transmission of the double internal meshing planetary mechanism 2 is realized by only one planetary gear ring 23 with an internal gear and an external gear, the planetary gear ring 23 has no problem of uneven load, a special load balancing mechanism does not need to be designed, the structure is simple, and transmission parts are reduced.

Example 4

As shown in fig. 1, a twin countershaft transmission according to the present embodiment using a twin inner mesh planetary mechanism includes all the technical features of embodiment 3, in addition to which a twin inner mesh planetary mechanism 2 is attached to an input end of the twin countershaft mechanism 1, and a tip end of a carrier 22 is coupled to the input end of the twin countershaft mechanism 1 as an output end of the twin inner mesh planetary mechanism 2.

The beneficial effects in this embodiment are: through installing two inner gearing planetary mechanism 2 in the input of two jackshaft mechanism 1, the effectual power reposition of redundant personnel that has realized, gear bearing capacity reinforcing, compact structure.

Example 5

As shown in fig. 2, the double countershaft transmission according to the present embodiment using the double internal meshing planetary mechanism includes all the technical features of embodiment 3, in addition to the double internal meshing planetary mechanism 2 being attached to the output end of the double countershaft mechanism 1, and the input end of the sun gear is coupled to the output end of the double countershaft mechanism 1 as the input end of the double internal meshing planetary mechanism 2.

In a specific embodiment, as shown in fig. 3, the double internal meshing planetary mechanism 2 is provided in two, which is mounted on the output side of the double countershaft mechanism 1; the total gear number of the transmission is twice as large as that of the double-intermediate shaft mechanism 1.

The beneficial effects in this embodiment are: through installing two inner gearing planetary mechanism 2 in the output of two jackshaft mechanism 1, the effectual power reposition of redundant personnel that has realized, gear bearing capacity reinforcing, compact structure.

Example 6

As shown in fig. 4 or 5, a twin countershaft transmission using a twin internally meshing planetary mechanism according to the present embodiment includes all the technical features of embodiment 3, and in addition, a twin internally meshing planetary mechanism 2 is installed at both ends of the input and output ends of the twin countershaft mechanism 1; the tail end of the planet carrier 22 is used as the output end of the double inner meshing planetary mechanism 2 and is connected with the input end of the double middle shaft mechanism 1 to form a front-mounted structure; the input end of the male gear is used as the input end of the double internal engagement planetary mechanism 2 and is connected with the output end of the double middle shaft mechanism 1 to form the rear-mounted structure.

In a specific embodiment, as shown in fig. 4, one double internal meshing planetary mechanism 2 is mounted at the input end of the double-countershaft mechanism 1, and the other double internal meshing planetary mechanism 2 is mounted at the output end of the double-countershaft mechanism 1, and the total gear shift of the transmission is twice as large as that of the double-countershaft mechanism 11.

In a specific embodiment, as shown in fig. 5, the double internal meshing planetary mechanisms 2 are provided in four, wherein two of the double internal meshing planetary mechanisms 2 are mounted at the input end of the double-countershaft mechanism 1, and the other two double internal meshing planetary mechanisms 2 are mounted at the output end of the double-countershaft mechanism 1; the total gear number of the transmission is four times of the gear number of the double-middle shaft mechanism 1.

The beneficial effects in this embodiment are: through all setting up two inner gearing planetary mechanism 2 at two jackshaft mechanism 1's input and output both ends for whole device structure symmetry, the atress is more even, and compact structure is showing the multiple that has increased the variable speed.

Example 7

As shown in fig. 1, the double countershaft transmission using the double internal planetary gear mechanism according to the present embodiment includes all the technical features of embodiment 1, and in addition, when the ring gear 24 is coupled to the housing 3, power is transmitted to the carrier 22 through the sun gear 21 and the planetary ring gear 23, and then output, so that a speed reduction effect is performed to form a low gear.

The beneficial effects in this embodiment are: the low gear setting is achieved by the connection of the annulus gear 24 with the housing 3.

Example 8

As shown in fig. 1, the double countershaft transmission using the double internal planetary gear mechanism according to the present embodiment includes all the technical features of embodiment 1, and in addition to this, the ring gear 24 is coupled to the carrier 22, the planetary gear mechanism is locked, the sun gear 21 and the carrier 22 do not rotate relative to each other, and the speed ratio of the double internal planetary gear mechanism 2 is 1, so that a high gear is formed.

The beneficial effects in this embodiment are: the high gear setting is achieved by the connection of the annulus gear 24 with the planet carrier 22.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Claims

1. A double-intermediate shaft transmission adopting a double internal meshing planetary mechanism is characterized by comprising a double-intermediate shaft mechanism (1), a double internal meshing planetary mechanism (2) and a shell (3); the input end and the output end of the double-intermediate-shaft mechanism (1) are both rotationally connected to the shell (3), and the input end and the output end of the double-inner-meshing planetary mechanism (2) are both rotationally connected to the shell (3); the input end and/or the output end of the double-intermediate shaft mechanism (1) is connected with at least one double internal meshing planetary mechanism (2).

2. A twin countershaft transmission using a twin internally meshing planetary mechanism according to claim 1, wherein at least one of the twin internally meshing planetary mechanisms (2) of the input ends of the twin countershaft mechanism (1) is connected end to end.

3. A twin countershaft transmission using a twin internally meshing planetary mechanism according to claim 1, wherein at least one of the twin internally meshing planetary mechanisms (2) of the output of the twin countershaft mechanism (1) is connected end to end in series.

4. A twin countershaft transmission employing a twin internally meshing planetary mechanism according to claim 1, wherein the twin internally meshing planetary mechanism (2) includes a sun gear (21), a carrier (22), a planetary ring gear (23), and a ring gear (24); the input end of the sun gear (21) is the input end of the double inner meshing planetary mechanism (2), and the tail end of the planet carrier (22) is the output end of the double inner meshing planetary mechanism (2); the sun gear (21) is in meshing transmission with an inner ring of the planetary gear ring (23), an outer ring of the planetary gear ring (23) is in meshing transmission with the inner ring gear (24), the center of the planetary gear ring (23) is fixed at the front end of the planet carrier (22), and the tail end of the planet carrier (22) penetrates through the inner ring gear (24) and is rotationally connected with the shell (3).

5. A twin countershaft transmission using a twin inner mesh planetary mechanism according to claim 4, wherein the twin inner mesh planetary mechanism (2) is installed at an input of the twin countershaft mechanism (1), and an end of the carrier (22) is coupled as an output of the twin inner mesh planetary mechanism (2) with the input of the twin countershaft mechanism (1).

6. A twin countershaft transmission according to claim 4, wherein the twin internal gearing mechanism (2) is mounted to the output of the twin countershaft mechanism (1) and the input of the sun is coupled as the input of the twin internal gearing mechanism (2) to the output of the twin countershaft mechanism (1).

7. The twin countershaft transmission using a twin internally meshing planetary mechanism according to claim 4, wherein the twin internally meshing planetary mechanism (2) is installed at both the input and output ends of the twin countershaft mechanism (1); the tail end of the planet carrier (22) is used as the output end of the double inner meshing planetary mechanism (2) and is connected with the input end of the double middle shaft mechanism (1) to form a front-mounted structure; the input end of the male gear is used as the input end of the double inner meshing planetary mechanism (2) and is connected with the output end of the double middle shaft mechanism (1) to form rear installation.

8. The twin countershaft transmission using a twin internal planetary gear mechanism according to claim 4, wherein when the ring gear (24) is coupled to the housing (3), power is transmitted to the carrier (22) through the sun gear (21) and the planetary ring gear (23) to be output, thereby performing a speed reduction function to form a low gear.

9. A twin countershaft transmission using a twin internal planetary gear according to claim 4, wherein the ring gear (24) is coupled to the carrier (22), the planetary gear is locked, the sun gear (21) and the carrier (22) do not rotate relative to each other, and the speed ratio of the twin internal planetary gear (2) is 1, thereby forming a high gear.

10. A twin countershaft transmission using a twin internally meshing planetary mechanism according to claim 1, wherein at least one of the twin internally meshing planetary mechanisms (2) has an identical internal structure.