High-efficiency transmission structure with noise reduction function

Abstract

The high-efficiency transmission structure with the noise reduction function comprises a center shaft, a transmission A shell, a transmission B shell and a motor assembly, the center shaft is located in the center of the interior of the transmission A shell and the center of the interior of the transmission B shell, and the motor assembly is fixedly connected to the bottom of the transmission B shell. The center of the top of the transmission shell A is rotationally connected with an output shaft, the bottom end of the output shaft extends to an inner cavity of the transmission shell A, the top end of the center shaft is connected to the bottom end of the output shaft in an inserted mode, the lower side of the outer side wall of the output shaft is connected with a fourth-stage sun gear in a clamped mode, and the bottom of the fourth-stage sun gear is rotationally connected with a fourth-stage planetary gear. According to the high-efficiency transmission structure with the noise reduction function, the centrifugal force caused by gaps is reduced, the transmission efficiency is improved, the noise caused by the gaps is also reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission technology field of transmission, concretely is a kind of high-efficiency transmission structure with noise reduction function. BACKGROUND

[0002] Generally, motor is connected between transmission, and motor is rotated, this motor can be motor for power generation or directly drive wheel rotation driving motor, and one end of transmission is directly connected to engine.

[0003] In traditional transmission, there is no central shaft in the middle, when such transmission rotates, sun gear is caused to not be on the same center with motor rotating center due to the matching gap between teeth, which can cause: centrifugal force is large, transmission efficiency is reduced, noise is increased, and service life is reduced, therefore, a kind of high-efficiency transmission structure with noise reduction function is provided. UTILITY MODEL CONTENT

[0004] The utility model is to provide a kind of high-efficiency transmission structure with noise reduction function, to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency transmission structure with noise reduction function, including central shaft, transmission A shell, transmission B shell and motor assembly, the central shaft is located at the inside center of the transmission A shell and the transmission B shell, the motor assembly is fixedly connected at the bottom of the transmission B shell, the top center of the transmission A shell is rotatably connected with output shaft, and the bottom end of the output shaft extends to the inner chamber of the transmission A shell, the top end of the central shaft is inserted in the bottom end of the output shaft, the outside wall lower side of the output shaft is clamped with four-stage sun gear, the bottom of the four-stage sun gear is rotatably connected with four-stage planet tooth, and the four-stage planet tooth is evenly distributed in annular, the outside wall of the central shaft and located at the lower side of the four-stage planet tooth is sleeved with three-stage sun gear, the bottom of the three-stage sun gear is rotatably connected with three-stage planet tooth, and the three-stage planet tooth is evenly distributed in annular, the outside wall of the central shaft and located at the lower side of the three-stage planet tooth is sleeved with two-stage sun gear, the outside wall of the two-stage sun gear is equipped with spring, and the spring is evenly distributed, and the end of the spring is equipped with cylindrical pin, the bottom of the two-stage sun gear is rotatably connected with two-stage planet tooth, the outside wall of the central shaft and located at the lower side of the two-stage planet tooth is sleeved with one-stage sun gear, and the bottom of the one-stage sun gear is rotatably connected with one-stage planet tooth.

[0006] Preferably, the transmission A shell and the transmission B shell are fixedly connected by bolt, and the top of the four-stage sun gear is equipped with gasket A.

[0007] Preferably, the inner side of the transmission A shell is clamped with a three-fourth gear ring, the upper side of the inner cavity of the transmission B shell is clamped with a second gear ring, and the lower side of the inner cavity of the transmission B shell is clamped with a first gear ring.

[0008] Preferably, the fourth sun gear and the third sun gear are located in the inner cavity of the three-fourth gear ring, and the third sun gear is in meshing rotation with the fourth planetary gear.

[0009] Preferably, a gasket B is arranged between the third sun gear and the second sun gear, and the second sun gear is in meshing rotation with the third planetary gear.

[0010] Preferably, the second sun gear is located in the inner cavity of the second gear ring, the first sun gear is located in the inner cavity of the first gear ring, and a gasket C is arranged between the second sun gear and the second planetary gear.

[0011] Preferably, the first sun gear is in meshing rotation with the second planetary gear, and the first planetary gear is in meshing rotation with the inner cavity wall of the first gear ring.

[0012] Preferably, the outer side wall of the central shaft is sleeved with a motor output gear at the lower side, the motor output gear is fixedly connected with the output end of the motor assembly, and the motor output gear is in meshing rotation with the first planetary gear.

[0013] Compared with the prior art, the high-efficiency transmission structure with the noise reduction function has the advantages that the central shaft is fixed in the middle of the output shaft and the motor output gear, passes through the central holes of the fourth sun gear, the third sun gear, the second sun gear and the first sun gear, so that the output shaft, the central shaft, the fourth sun gear, the third sun gear, the second sun gear, the first sun gear and the motor output gear have the same center when rotating, the power loss caused by eccentric operation of the sun gear due to the matching gap is ensured, the contact area of the planetary gear and the gear ring is uniform, the stress imbalance caused by the gap problem is avoided, the noise caused by high-speed operation is reduced, the centrifugal force caused by the gap is reduced, the transmission efficiency is improved, the noise caused by the gap is reduced, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is an explosion structure schematic view of the high-efficiency transmission structure with the noise reduction function.

[0015] Fig. 2 It is a front view explosion structure schematic view of the high-efficiency transmission structure with the noise reduction function.

[0016] Fig. 3 It is a front view cross-sectional structure schematic view of the high-efficiency transmission structure with the noise reduction function.

[0017] In the figure: 1, output shaft; 2, center shaft; 3, bolt; 4, transmission A shell; 5, three four gear ring; 6, gasket A; 7, four sun gear; 8, four planetary gear; 9, three sun gear; 10, three planetary gear; 11, gasket B; 12, two sun gear; 13, spring; 14, cylindrical pin; 15, gasket C; 16, two planetary gear; 17, two gear ring; 18, one sun gear; 19, one planetary gear; 20, one gear ring; 21, transmission B shell; 22, motor output gear; 23, motor assembly. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0019] Embodiment one:

[0020] Please refer to Figs. 1-3The utility model provides a technical scheme: a high efficiency transmission structure with noise reduction function, including central shaft 2, transmission A shell 4, transmission B shell 21 and motor assembly 23, central shaft 2 is located at the inside center of transmission A shell 4 and transmission B shell 21, motor assembly 23 is fixedly connected at the bottom of transmission B shell 21, the top center of transmission A shell 4 is rotatably connected with output shaft 1, and the bottom end of output shaft 1 extends to the inner chamber of transmission A shell 4, the top end of central shaft 2 is inserted in the bottom end of output shaft 1, and the outside wall lower side of output shaft 1 is connected with four level sun gear 7, and four level sun gear 7's bottom rotatably connected with four level planet tooth 8, and four level planet tooth 8 is annularly and evenly distributed, and the outside wall of central shaft 2 and located four level planet tooth 8's downside sleeve has three level sun gear 9, and three level sun gear 9's bottom rotatably connected with three level planet tooth 10, and three level planet tooth 10 is annularly and evenly distributed, and the outside wall of central shaft 2 and located three level planet tooth 10's downside sleeve has two level sun gear 12, and two level sun gear 12's outside wall is equipped with spring 13, and spring 13 is evenly distributed, and the end of spring 13 is equipped with cylindrical pin 14, and two level sun gear 12's bottom rotatably connected with two level planet tooth 16, and the outside wall of central shaft 2 and located two level planet tooth 16's downside sleeve has one level sun gear 18, and one level sun gear 18's bottom rotatably connected with one level planet tooth 19, and central shaft 2 is fixed in the middle of output shaft 1 and motor output tooth 22, and passes through four level sun gear 7, three level sun gear 9, two level sun gear 12, one level sun gear 18 center hole, so that running output shaft 1, central shaft 2, four level sun gear 7, three level sun gear 9, two level sun gear 12, one level sun gear 18, motor output tooth 22 are the same center, and the power of eccentric operation loss caused by the matching gap of sun gear is ensured when rotating, the contact area of planet tooth and gear ring is ensured to be uniform, and the stress unevenness caused by the gap problem is avoided, and the noise caused by high-speed operation is also reduced.

[0021] Example two:

[0022] Please refer to Figs. 1-3The utility model provides a technical scheme: a high -efficient transmission structure with noise reduction function, the between transmission A shell 4 and transmission B shell 21 is fixedly connected through bolt 3, the top of four -stage sun gear 7 is equipped with gasket A6, the inside joint of transmission A shell 4 has three four -stage gear 5, the inside joint of transmission B shell 21 has two -stage gear 17, the inside joint of transmission B shell 21 has one -stage gear 20, four -stage sun gear 7 and three -stage sun gear 9 are located in the inside chamber of three four -stage gear 5, three -stage sun gear 9 and four -stage planetary tooth 8 meshing rotation, three -stage sun gear 9 and two -stage sun gear 12 between being equipped with gasket B11, and two -stage sun gear 12 and three -stage planetary tooth 10 meshing rotation, two -stage sun gear 12 is located in the inside chamber of two -stage gear 17, one -stage sun gear 18 is located in the inside chamber of one -stage gear 20, two -stage sun gear 12 and two -stage planetary tooth 16 between being equipped with gasket C15, one -stage sun gear 18 and two -stage planetary tooth 16 meshing rotation, one -stage planetary tooth 19 and the inside chamber wall of one -stage gear 20 meshing rotation, the outside wall lower side of center shaft 2 is sleeved with motor output tooth 22, and motor output tooth 22 is fixedly connected with the output end of motor assembly 23, motor output tooth 22 and one -stage planetary tooth 19 meshing rotation, the one end of center shaft 2 is placed in the one end of motor output tooth 22 and is equipped with hole feature, the other end of center shaft 2 is placed in the one end of output shaft 1 and is equipped with hole feature, because output shaft 1 and motor output tooth 22 are fixed, and center shaft 2 links both ends, and the center of one -stage sun gear 18, two -stage sun gear 12, three -stage sun gear 9, four -stage sun gear 7 is equipped with the feature of through -hole, when assembling, center shaft 2 will pass through these through -holes and link both ends of output shaft 1 and motor output tooth 22, so when transmission is running, it will ensure that motor assembly 23, motor output tooth 22, one -stage sun gear 7, two -stage sun gear 9, three -stage sun gear 12, four -stage sun gear 18, output shaft 1 are in the same center rotation, at the same time, reduce the centrifugal force caused by the gap, improve the transmission efficiency, also reduce the noise caused by the gap, increase the service life.

[0023] In specific use, the person skilled in the art uses the transmission, fixes the motor output tooth 22 on the motor assembly 23, and when the motor rotates, the motor output tooth 22 also rotates to drive the one -stage planetary tooth 19, the one -stage planetary tooth 19 drives the one -stage sun gear 18 to rotate, the one end of the tooth feature of the one -stage sun gear 18 drives the two -stage planetary tooth 16 to rotate, the two -stage planetary tooth 16 rotates to drive the two -stage sun gear 12 to rotate, the one end of the tooth feature of the two -stage sun gear 12 drives the three -stage planetary tooth 10 to rotate, the three -stage planetary tooth 10 rotates to drive the three -stage sun gear 9 to rotate, the one end of the tooth feature of the three -stage sun gear 9 drives the four -stage planetary tooth 8 to rotate, the four -stage planetary tooth 8 rotates to drive the four -stage sun gear 7 to rotate, the one end of the four -stage sun gear 7 is provided with a hexagonal square hole, and the one end of the output shaft 1 is also provided with a hexagonal square column, so that when the four -stage sun gear 7 rotates, the output shaft 1 can be driven to rotate.

[0024] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0025] Although the present application has been described with reference to the embodiments above, it is possible to make various modifications thereto and replace components thereof with equivalents without departing from the scope of the present application. In particular, each feature disclosed in the above-described embodiments can be used in combination with any other feature disclosed in the embodiments, unless there is a structural conflict. The combinations of features are not exhaustively described in the present specification only for the sake of brevity and resource saving. Therefore, the present application is not limited to the specific embodiments disclosed herein but includes all technical solutions falling within the scope of the claims.

Claims

1. A high efficiency transmission structure with noise reduction function, characterized in that: The utility model provides a kind of multi-gear transmission mechanism, including central shaft (2), transmission A shell (4), transmission B shell (21) and motor assembly (23), the central shaft (2) is located inside the center of transmission A shell (4) and transmission B shell (21), the bottom of motor assembly (23) is fixedly connected in transmission B shell (21), the top center of transmission A shell (4) is rotatably connected with output shaft (1), and the bottom end of output shaft (1) extends to the inner cavity of transmission A shell (4), the top end of central shaft (2) is inserted in the bottom end of output shaft (1), the outside wall lower side of output shaft (1) is clamped with four level sun gear (7), the bottom of four level sun gear (7) is rotatably connected with four level planet gear (8), and four level planet gear (8) is evenly distributed in annular, the outside wall of central shaft (2) and located the lower side of four level planet gear (8) is sleeved with three level sun gear (9), the bottom of three level sun gear (9) is rotatably connected with three level planet gear (10), and three level planet gear (10) is evenly distributed in annular, the outside wall of central shaft (2) and located the lower side of three level planet gear (10) is sleeved with two level sun gear (12), the outside wall of two level sun gear (12) is equipped with spring (13) in a circle, and spring (13) is evenly distributed, and the end of spring (13) is equipped with cylindrical pin (14), the bottom of two level sun gear (12) is rotatably connected with two level planet gear (16) in a circle, the outside wall of central shaft (2) and located the lower side of two level planet gear (16) is sleeved with one level sun gear (18), the bottom of one level sun gear (18) is rotatably connected with one level planet gear (19) in a circle.

2. The high-efficiency transmission structure with noise reduction function according to claim 1, characterized in that: Transmission A shell (4) and transmission B shell (21) are fixedly connected by bolt (3), and the top of four level sun gear (7) is equipped with gasket A (6).

3. The high-efficiency transmission structure with noise reduction function according to claim 1, characterized in that: The inside of transmission A shell (4) is clamped with three four level gear (5), the upper side of the inner cavity of transmission B shell (21) is clamped with two level gear (17), and the lower side of the inner cavity of transmission B shell (21) is clamped with one level gear (20).

4. The high-efficiency transmission structure with noise reduction function according to claim 3, characterized in that: Four level sun gear (7) and three level sun gear (9) are located in the inner cavity of three four level gear (5), and three level sun gear (9) is rotatably engaged with four level planet gear (8).

5. The high-efficiency transmission structure with noise reduction function according to claim 1, characterized in that: Three level sun gear (9) and two level sun gear (12) are equipped with gasket B (11) between, and two level sun gear (12) is rotatably engaged with three level planet gear (10).

6. The high-efficiency transmission structure with noise reduction function according to claim 4, characterized in that: Two level sun gear (12) is located in the inner cavity of two level gear (17), one level sun gear (18) is located in the inner cavity of one level gear (20), and gasket C (15) is arranged between two level sun gear (12) and two level planet gear (16).

7. The high-efficiency transmission structure with noise reduction function according to claim 6, characterized in that: One level sun gear (18) and two level planet gear (16) are rotatably engaged, and one level planet gear (19) and the inner cavity wall of one level gear (20) are rotatably engaged.

8. The high-efficiency transmission structure with noise reduction function according to claim 1, characterized in that: The outer side wall of the central shaft (2) is sleeved with a motor output gear (22) at the lower side, and the motor output gear (22) is fixedly connected with the output end of the motor assembly (23), and the motor output gear (22) is engaged with the primary planetary gear (19) to rotate.

Images