CN113153982A - Cycloidal flexible gear speed reducer - Google Patents
Cycloidal flexible gear speed reducer Download PDFInfo
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- CN113153982A CN113153982A CN202110501050.8A CN202110501050A CN113153982A CN 113153982 A CN113153982 A CN 113153982A CN 202110501050 A CN202110501050 A CN 202110501050A CN 113153982 A CN113153982 A CN 113153982A
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 42
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- 238000009434 installation Methods 0.000 claims description 6
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
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- 230000005540 biological transmission Effects 0.000 description 11
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- 229910000831 Steel Inorganic materials 0.000 description 4
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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Abstract
The invention provides a cycloidal flexible gear speed reducer, which relates to the technical field of mechanical transmission and aims to optimize the structure of the cycloidal flexible gear speed reducer to a certain extent so as to reduce the size and the processing difficulty of an integral speed reducing mechanism. The invention provides a cycloidal flexible gear speed reducer which comprises a shell, an input assembly, a speed reducing flexible gear and an output assembly; the input assembly, the speed reduction flexible gear and the output assembly are all arranged in the shell; the input assembly comprises an eccentric shaft and a main gear, and the eccentric section of the eccentric shaft is connected with the main gear; the speed reduction flexible gear comprises an outer tooth part and an inner tooth part, the outer tooth part and the inner tooth part are distributed along the circumferential direction of the speed reduction flexible gear, a meshing part is formed in the shell along the circumferential direction of the shell, the inner tooth part is meshed with the main gear, and the outer tooth part is meshed with the meshing part; the output assembly is connected with the main gear so as to rotate along with the main gear.
Description
Technical Field
The invention relates to the technical field of mechanical transmission, in particular to a cycloidal flexible gear speed reducer.
Background
The reducer is an important component in the mechanical industry, and the transmission performance of the reducer directly influences the production efficiency, the working performance and the product quality of the machine.
The cycloidal steel ball planetary transmission speed reducer is an ultra-precise speed reducer designed and developed on the basis of a cycloidal pin gear speed reducer, but the cycloidal steel ball planetary transmission speed reducer has larger transmission but larger structural size, and if the size is reduced, the requirements on transmission precision and bearing capacity in industrial production cannot be met simultaneously, so that the transmission performance is influenced.
Therefore, it is highly desirable to provide a cycloidal flexspline reducer which solves the problems of the prior art to some extent.
Disclosure of Invention
The invention aims to provide a cycloidal flexible gear speed reducer, which is used for optimizing the structure of the cycloidal flexible gear speed reducer to a certain extent so as to reduce the size and the processing difficulty of an integral speed reducing mechanism.
The invention provides a cycloidal flexible gear speed reducer which comprises a shell, an input assembly, a speed reducing flexible gear and an output assembly, wherein the input assembly is connected with the input assembly; the input assembly, the speed reduction flexible gear and the output assembly are all arranged in the shell; the input assembly comprises an eccentric shaft and a main gear, and the eccentric section of the eccentric shaft is connected with the main gear; the speed reduction flexible gear comprises an outer tooth part and an inner tooth part, the outer tooth part and the inner tooth part are distributed along the circumferential direction of the speed reduction flexible gear, an engaging part is formed in the shell along the circumferential direction of the shell, the inner tooth part is engaged with the main gear, and the outer tooth part is engaged with the engaging part; the output assembly is connected with the main gear so as to rotate along with the main gear.
Wherein the input assembly further comprises a first bearing and a second bearing; the input section of the eccentric shaft is connected with the shell through the first bearing and can rotate relative to the shell, and the eccentric section is connected with the main gear through the second bearing and can rotate relative to the gear.
Specifically, the first bearing and the second bearing are both tapered roller bearings.
Further, the number of the inner teeth portions and the number of the outer teeth portions are the same, the number of the teeth portions is smaller than the number of the meshing portions, and the sum of the number of the meshing portions and the number of the teeth portions is the same as the sum of the number of the inner teeth portions and the number of the outer teeth portions.
The speed reduction flexible gear further comprises a flexible gear main body, the flexible gear main body is annular, the outer tooth parts are uniformly distributed on the outer ring of the flexible gear main body, and the inner tooth parts are uniformly distributed on the inner ring of the flexible gear main body; the cross sections of the inner tooth part and the outer tooth part are both arc-shaped.
Specifically, the output assembly further comprises a constant velocity flexspline and an output shaft; the side of the main gear, which is far away from the eccentric shaft, is provided with a first curved surface groove, the side of the output shaft, which is far towards the main gear, is provided with a second curved surface groove, the first curved surface groove and the second curved surface groove form an accommodating space, and the constant-speed flexible gear is arranged in the accommodating space.
Further, the first curved surface grooves and the second curved surface grooves are arranged in a staggered mode.
Furthermore, a plurality of first tooth parts are formed on one side of the constant velocity flexible gear facing the first curved groove, and the first tooth parts are meshed with the first curved groove; a plurality of second tooth parts are formed on one side of the constant velocity flexspline facing the output shaft, and the second tooth parts are meshed with the second curved surface grooves.
The first tooth parts are uniformly distributed on one side of the constant speed flexible gear, which faces the main gear, and the second tooth parts are uniformly distributed on one side of the constant speed flexible gear, which faces the output shaft; the first tooth part and the second tooth part are both in a hemispherical structure.
The cycloidal flexible gear speed reducer further comprises a flange and an end cover, wherein the flange is arranged at one end, facing the eccentric shaft, of the shell, the end cover is buckled at one end, facing the output shaft, of the shell, the flange, the shell and the end cover form an installation space, and the input assembly, the speed reduction flexible gear and the output assembly are arranged in the installation space.
Compared with the prior art, the cycloidal flexible gear speed reducer provided by the invention has the following advantages:
the invention provides a cycloidal flexible gear speed reducer which comprises a shell, an input assembly, a speed reducing flexible gear and an output assembly; the input assembly, the speed reduction flexible gear and the output assembly are all arranged in the shell; the input assembly comprises an eccentric shaft and a main gear, and the eccentric section of the eccentric shaft is connected with the main gear; the speed reduction flexible gear comprises an outer tooth part and an inner tooth part, the outer tooth part and the inner tooth part are distributed along the circumferential direction of the speed reduction flexible gear, a meshing part is formed in the shell along the circumferential direction of the shell, the inner tooth part is meshed with the main gear, and the outer tooth part is meshed with the meshing part; the output assembly is connected with the main gear so as to rotate along with the main gear.
From this analysis can know, the eccentric shaft in this application can rotate relative casing and master gear, and is connected with the master gear through the eccentric section that makes the eccentric shaft, and when the eccentric shaft rotated, the eccentric section can drive the master gear and do parallel translation. Because the main gear is meshed with the inner teeth of the deceleration flexible gear, and the outer teeth of the deceleration flexible gear is meshed with the meshing part of the shell, the deceleration flexible gear can rotate by the translation of the main gear, and the main gear is driven to rotate by the deceleration flexible gear.
Because the output assembly is connected with the main gear, the rotation of the main gear can drive the output assembly to rotate, thereby realizing the change of the rotating speed.
The application provides a reduction gear simple structure is compact, through the speed reduction flexbile gear including interior tooth portion and outer tooth portion, can improve the number of teeth of participating in the meshing simultaneously, on the basis of guaranteeing bearing capacity, has reduced the processing degree of difficulty to can realize the miniaturization better.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a sectional view of a cycloidal flexspline reducer provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first view angle of a cycloidal flexspline reducer according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a speed reduction flexible gear in the cycloidal flexible gear speed reducer provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of a constant velocity flexible gear in the cycloidal flexible gear reducer according to the embodiment of the present invention.
In the figure: 1-a shell; 101-an engagement portion; 2-eccentric shaft; 201-input section; 202-an eccentric section; 3-main gear; 301-a first curved trough; 4-a deceleration flexspline; 401-inner teeth; 402-external teeth; 5-a first bearing; 6-a second bearing; 7-constant velocity flexspline; 701 — a first tooth; 702-a second tooth; 8-an output shaft; 801-second curved groove; 9-a flange; 10-a third bearing; 11-a fourth bearing; 12-end cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Fig. 1 is a sectional view of a cycloidal flexspline reducer according to an embodiment of the present invention.
As shown in fig. 1, the present invention provides a cycloidal flexible gear speed reducer, which comprises a housing 1, an input assembly, a speed reduction flexible gear 4 and an output assembly; the input assembly, the speed reduction flexible gear 4 and the output assembly are all arranged in the shell 1; the input assembly comprises an eccentric shaft 2 and a main gear 3, wherein an eccentric section 202 of the eccentric shaft 2 is connected with the main gear 3 so as to drive the main gear 3 to move horizontally; the deceleration flexible gear 4 comprises an outer tooth part 402 and an inner tooth part 401, the outer tooth part 402 and the inner tooth part 401 are distributed along the circumferential direction of the deceleration flexible gear 4, an engaging part 101 is formed in the shell 1 along the circumferential direction of the shell 1, the inner tooth part 401 is engaged with the main gear 3, and the outer tooth part 402 is engaged with the engaging part 101; the output assembly is connected with the main gear 3 to follow the rotation of the main gear 3.
Compared with the prior art, the cycloidal flexible gear speed reducer provided by the invention has the following advantages:
according to the cycloidal flexible gear speed reducer provided by the invention, the eccentric shaft 2 can rotate relative to the shell 1 and the main gear 3, and the eccentric section 202 of the eccentric shaft 2 is connected with the main gear 3, so that when the eccentric shaft 2 rotates, the eccentric section 202 can drive the main gear 3 to move in parallel. Since the main gear 3 is meshed with the internal teeth 401 of the deceleration flexspline 4 and the external teeth 402 of the deceleration flexspline 4 are meshed with the meshing portion 101 of the housing 1, the translation of the main gear 3 can rotate the deceleration flexspline 4, so that the main gear 3 is driven to rotate by the deceleration flexspline 4.
Because the output assembly is connected with the main gear 3, the rotation of the main gear 3 can drive the output assembly to rotate, thereby realizing the change of the rotating speed.
The application provides a reduction gear simple structure is compact, through the speed reduction flexbile gear 4 including internal tooth portion 401 and external tooth portion 402, has replaced the steel ball in the current cycloid steel ball planetary transmission reduction gear, can enough improve the number of teeth of participating in the meshing simultaneously, can reduce the processing degree of difficulty again on the basis of guaranteeing the bearing capacity to can realize the miniaturization better.
Wherein, as shown in fig. 1, the input assembly further comprises a first bearing 5 and a second bearing 6; the input section 201 of the eccentric shaft 2 is connected to the housing 1 via a first bearing 5 and can rotate relative to the housing 1, and the eccentric section 202 is connected to the main gear 3 via a second bearing 6 and can rotate relative to the gear.
The input section 201 of the eccentric shaft 2 can be connected with the flange 9 through the first bearing 5, the eccentric section 202 can be connected with the main gear 3 through the second bearing 6, and the eccentric shaft 2 can rotate relative to the flange 9 and the main gear 3, so that the rotation of the input section 201 of the eccentric shaft 2 is converted into the translation of the main gear 3, and the rotation speed is changed by matching with the speed reduction flexible gear 4.
It should be added here that in one of the embodiments, the eccentricity of the eccentric shaft 2 in the present application is 1.6mm, but not limited to this size, and the eccentricity of the eccentric shaft 2 can be properly adapted according to specific requirements.
Preferably, the first bearing 5 and the second bearing 6 in the present application are tapered roller bearings, which can better bear axial force and radial force, and when under an axial pretension condition, the meshing between the internal tooth portion 401 of the deceleration flexible gear 4 and the main gear 3 and the meshing between the external tooth portion 402 and the meshing portion 101 in the present application are in a gapless meshing state, so that transmission accuracy can be ensured.
In the present application, the engagement of the first tooth 701 of the constant velocity flexspline 7 with the first curved groove 301 of the main gear 3 and the engagement of the second tooth 702 with the second curved groove 801 of the output shaft 8 are in a gapless engagement state under the radial preload condition, so that the transmission accuracy can be ensured.
It should be added that the present application further includes a third bearing 10, an outer ring of the third bearing 10 is connected to the output shaft 8, and an inner ring is connected to the output end of the eccentric shaft 2, so that the integral eccentric shaft 2 can rotate relative to the output shaft 8.
Fig. 2 is a schematic structural diagram of a first view angle of a cycloidal flexspline reducer according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a speed reduction flexible gear in the cycloidal flexible gear speed reducer provided by the embodiment of the invention.
As shown in fig. 2 and 3, the number of the inner teeth 401 and the outer teeth 402 is the same, the number of the teeth is smaller than the number of the meshing portions 101, and the sum of the number of the meshing portions 101 and the number of the teeth is the same as the sum of the number of the inner teeth 401 and the outer teeth 402.
The number of the inner teeth 401 and the outer teeth 402 of the reduction flexspline 4 is the same, so that the processing difficulty can be reduced to some extent, and the phase angle between the inner teeth 401 and the outer teeth 402 in the present application can be any angle, so that the processing difficulty can be further reduced.
It should be added here that, in the present application, it is preferable that the phase angle of the internal tooth portion 401 and the external tooth portion 402 is pi/13, the number of the internal tooth portion 401 and the external tooth portion 402 is 26, the number of the meshing portions 101 of the housing 1 is 27, and the number of the teeth of the main gear 3 is 25. The above limitation on the number and phase angle of the internal tooth portions 401 and the external tooth portions 402 is only one embodiment capable of realizing the rotation speed variation function, and the number and phase angle of the internal tooth portions 401 and the external tooth portions 402 can be reasonably adjusted according to specific requirements.
Specifically, as shown in fig. 2 and fig. 3, the deceleration flexible gear 4 further includes a flexible gear body, the flexible gear body is annular, the external teeth 402 are uniformly distributed on an outer ring of the flexible gear body, and the internal teeth 401 are uniformly distributed on an inner ring of the flexible gear body; the cross-sections of the inner tooth portion 401 and the outer tooth portion 402 are circular arc-shaped.
Preferably, the cross-sections of the inner teeth 401 and the outer teeth 402 in the present application are circular arc-shaped, and correspondingly, the tooth profiles of the teeth of the main gear 3 and the meshing part 101 of the housing 1 in the present application are circular arc-shaped to match the inner teeth 401 and the outer teeth 402, so that the meshing rotation process of the speed reduction flexible gear 4 and the housing 1 and the main gear 3 can be smoother, and the noise during operation can be reduced to some extent.
It should be added here that the arc centers of the 26 internal teeth 401 and the arc centers of the 26 external teeth 402 are uniformly distributed on a circle with a diameter of 26mm, and the transmission ratio of the above solution is-12.5.
Fig. 4 is a schematic structural diagram of a constant velocity flexible gear in the cycloidal flexible gear reducer according to the embodiment of the present invention.
Wherein, as shown in fig. 1 in combination with fig. 4, the output assembly further comprises a constant velocity flexspline 7 and an output shaft 8; a first curved groove 301 is formed on the side of the main gear 3 facing away from the eccentric shaft 2, a second curved groove 801 is formed on the side of the output shaft 8 facing the main gear 3, the first curved groove 301 and the second curved groove 801 form an accommodating space, and the constant velocity flexspline 7 is disposed in the accommodating space.
An accommodation space for accommodating the constant velocity flexspline 7 can be formed by the first curved surface groove 301 and the second curved surface groove 801 formed on the main gear 3 and the output shaft 8, so that the constant velocity flexspline 7 can be stably disposed between the main gear 3 and the output shaft 8, thereby transmitting the rotation of the main gear 3 to the output shaft 8 at a constant velocity.
Preferably, in one embodiment of the present invention, the number of the first curved surface groove 301 and the second curved surface groove 801 is 16, and 16 teeth are respectively engaged with the first curved surface groove 301 and the second curved surface groove 801 at both sides of the corresponding constant velocity flexspline 7.
It should be added here that the present application further includes a fourth bearing 11, and the fourth bearing 11 can realize relative rotation between the output shaft 8 and the housing 1.
Specifically, as shown in fig. 1 and 4, a plurality of first tooth portions 701 are formed on the side of the constant velocity flexspline 7 facing the first curved groove 301, and the plurality of first tooth portions 701 mesh with the first curved groove 301; a plurality of second tooth portions 702 are formed on the side of the constant velocity flexspline 7 facing the output shaft 8, and the second tooth portions 702 are engaged with the second curved surface grooves 801.
Preferably, the number of the first tooth 701 and the second tooth 702 in the present application is 16, so as to match the first curved groove 301 and the second curved groove 801. Further preferably, the phase angle of the first tooth 701 and the second tooth 702 in the present application may be 0 °, so that the difficulty in machining the constant velocity flexspline 7 can be reduced to some extent.
Further, as shown in fig. 1 and fig. 4, the first tooth portions 701 are uniformly distributed on a side of the constant velocity flexspline 7 facing the main gear 3, and the second tooth portions 702 are uniformly distributed on a side of the constant velocity flexspline 7 facing the output shaft 8; the first tooth 701 and the second tooth 702 are both in a hemispherical structure.
The first tooth 701 and the second tooth 702 having the hemispherical structures can improve the smoothness of meshing with the first curved groove 301 and the second curved groove 801 to stabilize the transmission of the rotational speed, and on the other hand, since the phase angle of the first tooth 701 and the second tooth 702 is preferably 0 ° as described above, the first tooth 701 and the second tooth 702 can form a spherical structure to make the rotation of the main gear 3 and the output shaft 8 smoother.
It should be added that, since the main gear 3 is driven by the eccentric section 202 of the eccentric shaft 2 to perform a translational motion, in order to ensure that the translational motion of the main gear 3 is not transmitted to the output shaft 8, it is preferable that the first curved grooves 301 and the second curved grooves 801 in this application are arranged in a staggered manner, so that the overall speed reducer can stably realize a change of the rotating speed.
As shown in fig. 1, the cycloidal flexible gear speed reducer provided by the invention further comprises a flange 9 and an end cover 12, wherein the flange 9 is covered on one end of the casing 1 facing the eccentric shaft 2, the end cover 12 is buckled on one end of the casing 1 facing the output shaft 8, the flange 9, the casing 1 and the end cover 12 form an installation space, and the input assembly, the speed reduction flexible gear 4 and the output assembly are all arranged in the installation space.
In this application, the input section 201 of the eccentric shaft 2 is connected with the flange 9 through the first bearing 5, and one end of the output shaft 8 far away from the eccentric section 202 protrudes out of the flange 9, and one end of the output shaft 8 far away from the main gear 3 protrudes out of the housing 1.
The whole device can be operated more stably by the flange 9, and the flange 9 can be detachably attached to the housing 1 by a fastener such as a bolt.
The output end of the output shaft 8 passes through the end cover 12 and protrudes out of the shell 1, and is connected with the shell 1 through a bearing and can rotate relative to the shell 1 and the end cover 12.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A cycloidal flexible gear speed reducer is characterized by comprising a shell, an input assembly, a speed reducing flexible gear and an output assembly;
the input assembly, the speed reduction flexible gear and the output assembly are all arranged in the shell;
the input assembly comprises an eccentric shaft and a main gear, and the eccentric section of the eccentric shaft is connected with the main gear;
the speed reduction flexible gear comprises an outer tooth part and an inner tooth part, the outer tooth part and the inner tooth part are distributed along the circumferential direction of the speed reduction flexible gear, an engaging part is formed in the shell along the circumferential direction of the shell, the inner tooth part is engaged with the main gear, and the outer tooth part is engaged with the engaging part;
the output assembly is connected with the main gear so as to rotate along with the main gear.
2. The cycloidal flexspline reducer of claim 1 wherein the input assembly further comprises a first bearing and a second bearing;
the input section of the eccentric shaft is connected with the shell through the first bearing and can rotate relative to the shell, and the eccentric section is connected with the main gear through the second bearing and can rotate relative to the gear.
3. The cycloidal compliant gear reducer of claim 2 in which said first bearing and said second bearing are both tapered roller bearings.
4. The cycloidal flexspline reducer of claim 1, wherein said inner teeth and said outer teeth are equal in number, said teeth are smaller in number than said meshing portions, and the sum of the number of meshing portions and the number of teeth is equal to the sum of the number of inner teeth and outer teeth.
5. The cycloidal flexspline reducer of claim 1, wherein said reduction flexspline further comprises a flexspline body, said flexspline body being annular, said outer teeth being evenly distributed on an outer ring of said flexspline body, said inner teeth being evenly distributed on an inner ring of said flexspline body;
the cross sections of the inner tooth part and the outer tooth part are both arc-shaped.
6. The cycloidal flexspline reducer of claim 1 wherein said output assembly further includes a constant velocity flexspline and an output shaft;
the side of the main gear, which is far away from the eccentric shaft, is provided with a first curved surface groove, the side of the output shaft, which is far towards the main gear, is provided with a second curved surface groove, the first curved surface groove and the second curved surface groove form an accommodating space, and the constant-speed flexible gear is arranged in the accommodating space.
7. The cycloidal flexspline reducer of claim 6, wherein said first curved grooves and said second curved grooves are staggered.
8. The cycloidal reducer according to claim 6 wherein a plurality of first teeth are formed on a side of the constant velocity flexspline facing the first curved groove, the first teeth engaging with the first curved groove;
a plurality of second tooth parts are formed on one side of the constant velocity flexspline facing the output shaft, and the second tooth parts are meshed with the second curved surface grooves.
9. The cycloidal flexspline reducer of claim 8 wherein a plurality of said first teeth are evenly distributed on a side of said constant velocity flexspline facing said main gear and a plurality of said second teeth are evenly distributed on a side of said constant velocity flexspline facing said output shaft;
the first tooth part and the second tooth part are both in a hemispherical structure.
10. The cycloidal flexspline reducer of claim 6 further including a flange and an end cap, said flange cap being disposed on an end of said housing facing said eccentric shaft, said end cap being fastened to an end of said housing facing said output shaft, said flange, said housing and said end cap forming an installation space, said input assembly, said speed reduction flexspline and said output assembly being disposed in said installation space.
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| CN202110501050.8A CN113153982A (en) | 2021-05-08 | 2021-05-08 | Cycloidal flexible gear speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116247874A (en) * | 2023-05-06 | 2023-06-09 | 哈尔滨艾拓普科技有限公司 | Cycloid differential driving module |
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| JP2018071577A (en) * | 2016-10-25 | 2018-05-10 | Ntn株式会社 | Speed reducer |
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| KR100862712B1 (en) * | 2007-07-03 | 2008-10-10 | 창-추안 첸 | Reduction gear with increased number of meshed teeth |
| CN101881318A (en) * | 2010-06-23 | 2010-11-10 | 重庆大学 | General reducer with eccentric engagement pairs |
| JP2018071577A (en) * | 2016-10-25 | 2018-05-10 | Ntn株式会社 | Speed reducer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116247874A (en) * | 2023-05-06 | 2023-06-09 | 哈尔滨艾拓普科技有限公司 | Cycloid differential driving module |
| CN116247874B (en) * | 2023-05-06 | 2023-08-11 | 哈尔滨艾拓普科技有限公司 | Cycloid differential driving module |
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