Dual-drive speed reducer

Abstract

The invention provides a dual-drive speed reducer, which belongs to the technical field of speed reducer equipment, and comprises a shell assembly, and a first input shaft, a second input shaft, a first inner and outer shape gear ring, a second inner and outer shape gear ring and an output shaft which are positioned in the shell assembly, the first inner and outer shape gear ring and the second inner and outer shape gear ring are driven in a mechanical transmission mode and finally output from the output shaft. According to the dual-drive speed reducer, by arranging two power sources, namely the first motor and the second motor, it can be ensured that equipment does not stop when any motor breaks down, and the production cost is effectively controlled; the output rotating speed can be adjusted according to requirements, and meanwhile the device is simple in structure and convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of reducer equipment, and in particular to a dual-drive reducer. Background Art

[0002] For a long time, if the motor fails during the operation of the conventional planetary reduction system, the only option is to replace the motor, which requires waiting for the shutdown, resulting in an increase in the entire project cycle; or when the motor cannot achieve speed regulation, but the output end requires dynamic speed, the conventional planetary reduction system cannot achieve this function. In order to improve the actual requirements, the present invention provides a dual-motor input reducer; this design effectively reduces the equipment failure rate, saves more time, and can effectively ensure production progress. Summary of the invention

[0003] In view of this, in order to solve the problem that the traditional reducer can still ensure the working efficiency when the motor fails, an embodiment of the present invention provides a dual-drive reducer.

[0004] An embodiment of the present invention provides a dual-drive reducer, comprising a housing assembly, and a first input shaft, a second input shaft, a first inner and outer shape gear ring, a second inner and outer shape gear ring, and an output shaft located in the housing assembly; The outer wall of the first input shaft is rotatably connected to the inner wall of the housing assembly, one end of the first input shaft is connected to a first motor, the other end is located in the housing assembly and is connected to a first sun gear, one end of the output shaft is located in the housing assembly and a rotatable first planetary gear is provided inside the end, and the other end extends out of the housing assembly, the first planetary gear is externally meshed and driven with the first sun gear, the outer wall of the output shaft is rotatably connected to the inner wall of the housing assembly, the first inner and outer gear ring is rotatably sleeved on the outer wall of the output shaft, and the inner tooth shape of the first inner and outer gear ring is internally meshed and driven with the first planetary gear, and the outer tooth shape is externally meshed and driven with the outer tooth shape of the second inner and outer gear ring. The second input shaft is located below the first input shaft, one end of the second input shaft is connected to a second motor, the other end is located in the housing assembly and a planet carrier is sleeved on the outer periphery of the end, the planet carrier is connected to the housing assembly, and the outer wall of the second input shaft is rotatably connected to the inner wall of the planet carrier, one end of the second input shaft provided with the planet carrier is provided with a second sun gear, a rotatable second planetary gear is provided on the planet carrier, the second planetary gear is externally meshed and transmission-connected with the second sun gear, the outer periphery of the second planetary gear is sleeved with a second inner and outer gear ring, the inner wall of the second inner and outer gear ring is rotatably connected to the outer wall of the planet carrier, and the inner gear is internally meshed and transmission-connected with the second planetary gear.

[0005] Further, the shell assembly includes a middle shell and a third flange shell, wherein a first flange shell is fixedly provided at one end of the upper part of the middle shell and a second flange shell is fixedly provided at the other end, the third flange shell is located below the first flange shell, and the upper end of the third flange shell is fixedly connected to the lower end of the first flange shell, the lower part of the middle shell is located below the second flange shell, and the lower outer wall of the middle shell is fixedly connected to the lower end of the second flange shell.

[0006] Furthermore, a first pin is fixedly provided on the output shaft, the first planetary gear is rotatably sleeved on the first pin via a needle bearing, and the axes of the first input shaft, the first sun gear, the output shaft, and the first pin are parallel to each other.

[0007] Furthermore, a second pin is fixedly provided on the planet carrier, the second planetary gear is rotatably sleeved on the second pin via a needle bearing, and the axes of the second input shaft, the second sun gear, the output shaft and the second pin are parallel to each other.

[0008] Furthermore, the shaft of the first motor passes through the first flange shell and is fixedly connected to the corresponding end of the first input shaft, and the outer wall of the first input shaft is rotatably connected to the inner wall of the first flange shell via a first single-row deep groove ball bearing.

[0009] Furthermore, one end of the first inner and outer gear ring is close to the first flange shell and a cylinder is fixedly provided on the end portion, and the other end is close to the second flange shell. The inner wall of the cylinder is rotatably connected to the outer wall of the first input shaft through a second single-row deep groove ball bearing, and the two ends of the inner wall of the first inner and outer gear ring are rotatably connected to the outer wall of the output shaft through a third single-row deep groove ball bearing and a fourth single-row deep groove ball bearing respectively.

[0010] Furthermore, an outer wall of one end of the output shaft away from the first input shaft is rotatably connected to the inner wall of the second flange shell via a fifth single-row deep groove ball bearing.

[0011] Furthermore, one end of the planet carrier is close to the third flange shell and the end portion is fixedly connected to the inner wall of the third flange shell, and the other end is close to the lower portion of the middle shell and the end portion is equipped with a cover.

[0012] Furthermore, the outer wall of the second input shaft is rotatably connected to the inner wall of the planet carrier via a sixth single-row deep groove ball bearing.

[0013] Furthermore, the inner wall of the second inner and outer gear ring is rotatably connected to the outer wall of the planet carrier through a seventh single-row deep groove ball bearing.

[0014] The beneficial effects brought about by the technical solution provided by the embodiments of the present invention are: a dual-drive reducer of the present invention, by setting two power sources, namely the first motor and the second motor, can ensure that the equipment can still not stop when any motor fails, thereby effectively controlling production costs; and the output speed can be adjusted according to needs, and the device has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a dual-drive reducer of the present invention.

[0016] In the figure: 1-first motor, 2-first input shaft, 3-first sun gear, 4-first planetary gear, 5-first pin shaft, 6-output shaft, 7-first inner and outer ring gear, 8-cylinder, 9-second motor, 10-second input shaft, 11-second sun gear, 12-second planetary gear, 13-second pin shaft, 14-planet carrier, 15-second inner and outer ring gear, 16-cover, 17-middle housing, 18-first flange shell, 19-second flange shell, 20-third flange shell, 21-first single row deep groove ball bearing, 22-second single row deep groove ball bearing, 23-third single row deep groove ball bearing, 24-fourth single row deep groove ball bearing, 25-fifth single row deep groove ball bearing, 26-sixth single row deep groove ball bearing, 27-seventh single row deep groove ball bearing. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Please refer to Figure 1 An embodiment of the present invention provides a dual-drive reducer, including a housing assembly and a first input shaft 2, a second input shaft 10, a first inner and outer ring gear 7, a second inner and outer ring gear 15, and an output shaft 6 located in the housing assembly.

[0019] The housing assembly includes a first flange shell 18, a second flange shell 19, a middle housing 17, and a third flange shell 20, wherein the first flange shell 18 is located at one end of the upper half of the middle housing 17 and the two are detachably fixedly connected, the second flange shell 19 is located at the other end of the upper half of the middle housing 17 and the two are detachably fixedly connected, the third flange shell 20 is located below the first flange shell 18, and the lower end of the first flange shell 18 is detachably fixedly connected to the upper end of the third flange shell 20, the lower half of the middle housing 17 is located below the second flange shell 19, and the outer wall of the lower half of the middle housing 17 is detachably fixedly connected to the lower end of the second flange shell 19. It should be noted that in this embodiment, the middle housing 17 can be an integrated design or a segmented design, which only needs to meet the requirements and is not limited by this example. It should also be noted that when the device in this embodiment is actually working, the housing assembly is fixedly connected to a fixed installation position outside, and the housing assembly mainly plays a role in protecting internal equipment, and its structure only needs to meet the requirements and is not limited by this embodiment.

[0020] The first input shaft 2 is located inside the housing assembly, and one end of the first input shaft 2 is transmission-connected with a first motor 1, and the first motor 1 is fixedly connected to the outer wall of the first flange shell 18. The other end of the first input shaft 2 is located inside the housing assembly, and the outer wall of this end is rotatably connected to the inner wall of the first flange shell 18 via a first single-row deep groove ball bearing 21, so that the first input shaft 2 can be driven to rotate by the first motor 1.

[0021] A first sun gear 3 is fixedly provided at one end of the first input shaft 2 away from the first motor 1, one end of the output shaft 6 is located in the housing assembly and the other end extends out of the housing assembly, the end of the output shaft 6 located in the housing assembly faces the first sun gear 3, and a rotatable first planetary gear 4 is provided at the end, the first planetary gear 4 is externally meshed and driven with the first sun gear 3, the outer wall of the end of the output shaft 6 extending out of the housing assembly is rotatably fixedly connected to the inner wall of the second flange shell 19 through a fifth single-row deep groove ball bearing 25, a first pin 5 is fixedly provided on one end of the output shaft 6 provided with the first planetary gear 4, and the first planetary gear 4 is rotatably sleeved on the first pin 5 through a needle bearing, so that the first sun gear 3 can be driven by the first motor 1 and then the first planetary gear 4 can be driven to rotate.

[0022] The first inner and outer gear ring 7 is sleeved on the outer periphery of one end of the output shaft 6 provided with the first planetary gear 4, and the two ends of the inner wall of the first inner and outer gear ring 7 are rotatably fixedly connected to the outer wall of the corresponding end of the output shaft 6 through the third single-row deep groove ball bearing 23 and the fourth single-row deep groove ball bearing 24 respectively, and the inner tooth shape of the first inner and outer gear ring 7 is in internal meshing transmission connection with the first planetary gear 4, and the outer tooth shape is in external meshing transmission connection with the outer tooth shape of the second inner and outer gear ring 15; one end of the first inner and outer gear ring 7 faces the first input shaft 2, and the other end faces the second flange shell 19, and a cylinder 8 is fixedly provided on the end of the first inner and outer gear ring 7 facing the first input shaft 2, and the cylinder 8 is sleeved on the outer periphery of the first input shaft 2, and the inner wall of the cylinder 8 is rotatably sleeved on the outer wall of the first input shaft 2 through the second single-row deep groove ball bearing 22, so that when the first planetary gear 4 rotates, the output shaft 6 can be driven to rotate and output.

[0023] It should be noted here that, in this embodiment, the axes of the shaft of the first motor 1, the first input shaft 2, the first pin shaft 5, and the output shaft 6 are parallel to each other.

[0024] The second input shaft 10 is located below the first input shaft 2. The second input shaft 10 is located inside the housing assembly, and one end of the second input shaft 10 is transmission-connected with a second motor 9, and the second motor 9 is fixedly connected to the outer wall of the third flange shell 20. The other end of the second input shaft 10 is located in the third flange shell 20. A planet carrier 14 is fixedly provided on a side of the third flange shell 20 away from the second motor 9. The planet carrier 14 is sleeved on the outer periphery of one end of the second input shaft 10 in the third flange shell 20. The outer wall of the second input shaft 10 is rotatably fixedly connected to the inner wall of the planet carrier 14 through a sixth single-row deep groove ball bearing 26, so that the second input shaft 10 can be driven by the second motor 9.

[0025] A second sun gear 11 is fixedly mounted on one end of the second input shaft 10 located in the third flange housing 20 , and a rotatable second planetary gear 12 is mounted on one end of the planetary carrier 14 away from the third flange housing 20 . The second planetary gear 12 is externally meshed and drivingly connected to the second sun gear 11 .

[0026] The second pin 13 is fixedly provided on one end of the planet carrier 14 with the second planetary gear 12. The second planetary gear 12 is rotatably sleeved on the second pin 13 through a needle bearing, so that when the second sun gear 11 rotates, the second planetary gear 12 can be driven to rotate.

[0027] The second inner and outer shape gear ring 15 is sleeved on the periphery of the planetary carrier 14, and both ends of the inner wall of the second inner and outer shape gear ring 15 are rotatably fixedly connected to the outer wall of the planetary carrier 14 through the seventh single-row deep groove ball bearing 27. The inner tooth shape of the second inner and outer shape gear ring 15 is in internal meshing transmission connection with the second planetary gear 12, and the outer tooth shape is in external meshing transmission connection with the outer tooth shape of the first inner and outer shape gear ring 7. In this way, when the second planetary gear 12 rotates, it can drive the second inner and outer shape gear ring 15 to rotate, thereby driving the first inner and outer shape gear ring 7 to rotate, and then output from the output shaft 6.

[0028] Furthermore, a cover 16 is provided at one end of the planet carrier 14 close to the second planetary gear 12. It should be noted here that the cover 16 is generally used in conjunction with the bearing in actual working conditions. It is a common technical means, and its purpose is to prevent the corresponding bearing from loosening to a certain extent.

[0029] It should also be noted that, in the present embodiment, the axes of the shaft of the second motor 9, the second input shaft 10, the second pin shaft 13 and the output shaft 6 are parallel to each other.

[0030] A dual-drive reducer in the present embodiment works as follows: the first motor 1 drives the first planetary gear 4 to rotate through the first sun gear 3, and then cooperates with the first inner and outer shape gear ring 7 and the second inner and outer shape gear ring 15 to drive the output shaft 6 to rotate and output; the second motor 9 drives the second planetary gear 12 to rotate through the second sun gear 11, and then cooperates with the second inner and outer shape gear ring 15 and the first inner and outer shape gear ring 7 to drive the output shaft 6 to rotate and output; at the same time, the first motor 1 and the second motor 9 can work simultaneously.

[0031] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0032] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-drive reducer, characterized in that: It comprises a housing assembly and a first input shaft (2), a second input shaft (10), a first inner and outer shape gear ring (7), a second inner and outer shape gear ring (15), and an output shaft (6) located inside the housing assembly; The outer wall of the first input shaft (2) is rotatably connected to the inner wall of the housing assembly; one end of the first input shaft (2) is connected to a first motor (1); the other end is located in the housing assembly and is connected to a first sun gear (3); one end of the output shaft (6) is located in the housing assembly and is provided with a rotatable first planetary gear (4); the other end extends out of the housing assembly; the first planetary gear (4) is externally meshed and transmission-connected to the first sun gear (3); the outer wall of the output shaft (6) is rotatably connected to the inner wall of the housing assembly; the first inner and outer gear ring (7) is rotatably sleeved on the outer wall of the output shaft (6); the inner tooth shape of the first inner and outer gear ring (7) is internally meshed and transmission-connected to the first planetary gear (4); the outer tooth shape is externally meshed and transmission-connected to the outer tooth shape of the second inner and outer gear ring (15); the second input shaft (10) is located in the housing assembly; Under an input shaft (2), one end of the second input shaft (10) is connected to a second motor (9), the other end is located in the housing assembly and a planet carrier (14) is sleeved on the outer periphery of the end, the planet carrier (14) is connected to the housing assembly, and the outer wall of the second input shaft (10) is rotatably connected to the inner wall of the planet carrier (14), one end of the second input shaft (10) is provided with the planet carrier (14) and a second sun gear (11) is provided, the planet carrier (14) is provided with a rotatable second planet gear (12), the second planet gear (12) is externally meshed and transmission-connected to the second sun gear (11), the outer periphery of the second planet gear (12) is sleeved with a second inner and outer gear ring (15), the inner wall of the second inner and outer gear ring (15) is rotatably connected to the outer wall of the planet carrier (14), and the inner teeth are internally meshed and transmission-connected to the second planet gear (12).

2. A dual-drive reducer as claimed in claim 1, characterized in that: The shell assembly comprises a middle shell (17) and a third flange shell (20), wherein a first flange shell (18) is fixedly provided at one end of an upper portion of the middle shell (17), and a second flange shell (19) is fixedly provided at the other end thereof; the third flange shell (20) is located below the first flange shell (18), and an upper end of the third flange shell (20) is fixedly connected to a lower end of the first flange shell (18); a lower portion of the middle shell (17) is located below the second flange shell (19), and an outer wall of a lower portion of the middle shell (17) is fixedly connected to a lower end of the second flange shell (19).

3. A dual-drive reducer as claimed in claim 1, characterized in that: A first pin (5) is fixedly provided on the output shaft (6); the first planetary gear (4) is rotatably sleeved on the first pin (5) via a needle bearing; and the axes of the first input shaft (2), the first sun gear (3), the output shaft (6), and the first pin (5) are parallel to each other.

4. A dual-drive reducer as claimed in claim 1, characterized in that: A second pin shaft (13) is fixedly provided on the planet carrier (14); the second planetary gear (12) is rotatably sleeved on the second pin shaft (13) via a needle bearing; and the axes of the second input shaft (10), the second sun gear (11), the output shaft (6), and the second pin shaft (13) are parallel to each other.

5. A dual-drive reducer as claimed in claim 2, characterized in that: The shaft of the first motor (1) passes through the first flange shell (18) and is fixedly connected to the corresponding end of the first input shaft (2); the outer wall of the first input shaft (2) is rotatably connected to the inner wall of the first flange shell (18) via a first single-row deep groove ball bearing (21).

6. A dual-drive reducer as claimed in claim 2, characterized in that: One end of the first inner and outer gear ring (7) is close to the first flange shell (18) and a cylinder (8) is fixedly provided at the end thereof, and the other end is close to the second flange shell (19). The inner wall of the cylinder (8) is rotatably connected to the outer wall of the first input shaft (2) via a second single-row deep groove ball bearing (22), and the inner wall of the first inner and outer gear ring (7) is rotatably connected to the outer wall of the output shaft (6) at two ends thereof via a third single-row deep groove ball bearing (23) and a fourth single-row deep groove ball bearing (24).

7. A dual-drive reducer as claimed in claim 2, characterized in that: The outer wall of one end of the output shaft (6) away from the first input shaft (2) is rotatably connected to the inner wall of the second flange shell (19) via a fifth single-row deep groove ball bearing (25).

8. A dual-drive reducer as claimed in claim 2, characterized in that: One end of the planet carrier (14) is close to the third flange shell (20) and the end portion is fixedly connected to the inner wall of the third flange shell (20), and the other end is close to the lower part of the middle shell (17) and the end portion is equipped with a cover (16).

9. A dual-drive reducer as claimed in claim 2, characterized in that: The outer wall of the second input shaft (10) is rotatably connected to the inner wall of the planet carrier (14) via a sixth single-row deep groove ball bearing (26).

10. A dual-drive reducer as claimed in claim 2, characterized in that: The inner wall of the second inner and outer gear ring (15) is rotatably connected to the outer wall of the planet carrier (14) via a seventh single-row deep groove ball bearing (27).

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