CN220646638U - Movable tooth cycloid speed reducer - Google Patents
Movable tooth cycloid speed reducer Download PDFInfo
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- CN220646638U CN220646638U CN202322131453.5U CN202322131453U CN220646638U CN 220646638 U CN220646638 U CN 220646638U CN 202322131453 U CN202322131453 U CN 202322131453U CN 220646638 U CN220646638 U CN 220646638U
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- movable
- movable tooth
- teeth
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- end cover
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a movable tooth cycloidal reducer, which comprises: the movable tooth rack comprises an input shaft, a movable tooth rack input end cover assembly, an output shaft and a shell, wherein the shell is fixedly connected with the movable tooth rack input end cover assembly to form a cavity, a plurality of movable teeth are uniformly distributed on the movable tooth rack input end cover assembly, movable tooth pins are clamped between two adjacent movable teeth, the movable tooth pins are cylindrical, the movable teeth of the movable tooth rack input end cover assembly are inserted into the shell from left to right, the edges of the movable teeth are attached to the inner wall of the shell, a U-shaped groove is formed between the movable teeth and the shell, the opening of the U-shaped groove is smaller than the inner diameter, and movable tooth pins are clamped in the U-shaped groove. The utility model achieves the function of the traditional needle gear, greatly reduces the manufacturing difficulty and the manufacturing cost, and achieves the aim of reducing the speed.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a movable tooth cycloid speed reducer.
Background
The cycloidal pin gear speed reducer is a novel transmission device which adopts a planetary transmission principle and adopts cycloidal pin gear meshing. All transmission devices of the cycloidal pin gear speed reducer can be divided into three parts: an input part, a deceleration part and an output part.
When the input shaft rotates for one circle with the eccentric sleeve, the motion of the cycloid gear becomes a plane motion with revolution and rotation due to the characteristic of the tooth profile curve on the cycloid gear and the limitation of the needle teeth on the needle gear, and when the input shaft rotates for one circle in the positive direction, the eccentric sleeve also rotates for one circle, the cycloid gear rotates for one tooth in the opposite direction so as to obtain speed reduction, and then the low-speed rotation motion of the cycloid gear is transmitted to the output shaft through the pin shaft by the W output mechanism, so that the lower output rotation speed is obtained.
The cycloidal gear of the existing cycloidal gear reducer is used as an external gear, the pin gear is used as an internal gear, the cycloidal gear eccentrically rotates and is meshed with the fixed pin gear to achieve the purpose of reducing speed, and the pin gear assembly requirement of the cycloidal pin gear reducer is particularly high, the precision of machining the pin gear shell is also particularly high, so that the manufacturing cost of the traditional cycloidal pin gear reducer is greatly increased.
We therefore propose a cycloidal reducer with movable teeth in order to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide a movable tooth cycloid reducer which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a movable tooth cycloidal reducer comprising: the device comprises an input shaft, a movable rack input end cover assembly, an output shaft and a shell, wherein the shell is fixedly connected with the movable rack input end cover assembly to form a cavity;
a plurality of movable teeth are uniformly distributed on the movable tooth rack input end cover assembly, and movable tooth pins are clamped between two adjacent movable teeth and are cylindrical;
the movable teeth of the movable tooth rack input end cover assembly are inserted into the shell from left to right, the edges of the movable teeth are attached to the inner wall of the shell, a U-shaped groove is formed between the movable teeth and the shell, the opening of the U-shaped groove is smaller than the inner diameter, and movable tooth pins are clamped in the U-shaped groove.
Preferably, the movable rack input end cover assembly is fixedly connected with the shell through an inner hexagon bolt.
Preferably, the input shaft penetrates through the movable rack input end cover assembly, the input shaft is rotationally connected with the movable rack input end cover assembly through a first bearing, and a clamp spring is sleeved at the joint of the input shaft and the movable rack input end cover assembly.
Preferably, the right end of the input shaft is rotationally connected with the output shaft through a second bearing, the output shaft is rotationally connected with the inner wall of the shell through a third bearing, and the right end of the output shaft penetrates out of the shell and then is connected with an external transmission piece.
Preferably, the part of the input shaft positioned in the shell is sleeved with an eccentric bearing assembly, and the eccentric bearing assembly is fixedly connected with the input shaft through a flat key.
Preferably, the two ends of the eccentric bearing assembly are respectively provided with a first gasket and a second gasket.
Preferably, a pair of cycloidal gears are fixedly arranged on the eccentric bearing assembly, the edge teeth of the cycloidal gears are meshed with movable tooth pins, and the number of the movable tooth pins is larger than the number of teeth of the cycloidal gears.
Preferably, the cycloidal gear is provided with a plurality of holes, the holes are movably inserted into output pins, the output pins are sleeved with output pin sleeves, and the right ends of the output pins are fixedly connected with the output shaft.
Compared with the prior art, the utility model has the beneficial effects that:
1. the cycloidal gear eccentric with the input shaft and the movable tooth pins with fixed radial moving surface are meshed for transmission, the movable tooth pins are embedded into the movable U-shaped grooves, the movable tooth pins are radially limited, the function of the traditional pin gear is achieved, the manufacturing difficulty and the manufacturing cost are greatly reduced, the number of the movable tooth pins is larger than the number of teeth of the cycloidal gear, and when the cycloidal gear eccentrically rotates, the teeth of the cycloidal gear are meshed with the movable tooth pins, and the aim of reducing speed is achieved by utilizing the characteristic of a small tooth difference structure;
2. the cycloidal pin gear speed reducer can replace the traditional cycloidal pin gear speed reducer, when the cycloidal gear is meshed with the movable tooth pin, the outer diameter of the movable tooth pin is contacted with the inner circle on one side of the shell, when the input shaft rotates to drive the eccentric bearing assembly to rotate, the cycloidal gear also rotates around the eccentric bearing assembly, and as the cycloidal gear is meshed with the movable tooth pin and the normal direction of the movable tooth pin is fixed, the rotating cycloidal gear rotates and revolves, and the cycloidal gear is connected to the output shaft through the output pin, so that the aim of high-efficiency speed reduction is achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the movable rack input end cap assembly and movable teeth of the present utility model.
In the figure: 1. an input shaft; 2. clamping springs; 3. a first bearing; 4. a movable rack input end cover assembly; 5. an inner hexagon bolt; 6. a first gasket; 7. a flat key; 8. an eccentric bearing assembly; 9. outputting a pin sleeve; 10. an output pin; 11. cycloidal gears; 12. a movable tooth pin; 13. a second gasket; 14. a second bearing; 15. an output shaft; 16. a third bearing; 17. a housing; 18. and (5) oscillating teeth.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides a technical solution: a movable tooth cycloidal reducer comprising: the movable rack input end cover assembly 4 is fixedly connected with the shell 17 through the inner hexagon bolt 5, so that a cavity is formed between the shell 17 and the movable rack input end cover assembly 4;
a plurality of movable teeth 18 are uniformly distributed on the movable rack input end cover assembly 4, movable tooth pins 12 are clamped between two adjacent movable teeth 18, and the movable tooth pins 12 are cylindrical;
the movable teeth 18 of the movable rack input end cover assembly 4 are inserted into the shell 17 from left to right, the edges of the movable teeth 18 are attached to the inner wall of the shell 17, a U-shaped groove is formed between the movable teeth 18 and the shell 17, the opening of the U-shaped groove is smaller than the inner diameter, and the movable teeth pin 12 is clamped in the U-shaped groove;
the input shaft 1 penetrates through the movable rack input end cover assembly 4, the input shaft 1 is rotatably connected with the movable rack input end cover assembly 4 through the first bearing 3, and a clamp spring 2 is sleeved at the joint of the input shaft 1 and the movable rack input end cover assembly 4;
the right end of the input shaft 1 is rotationally connected with an output shaft 15 through a second bearing 14, the output shaft 15 is rotationally connected with the inner wall of a shell 17 through a third bearing 16, and the right end of the output shaft 15 penetrates out of the shell 17 and then is connected with an external transmission part;
the part of the input shaft 1 positioned in the shell 17 is sleeved with an eccentric bearing assembly 8, and the eccentric bearing assembly 8 is fixedly connected with the input shaft 1 through a flat key 7;
the two ends of the eccentric bearing assembly 8 are respectively provided with a first gasket 6 and a second gasket 13;
a pair of cycloid gears 11 are fixedly arranged on the eccentric bearing assembly 8, the edge tooth edges of the cycloid gears 11 are meshed with movable tooth pins 12, and the number of the movable tooth pins 12 is larger than the number of teeth of the cycloid gears 11;
the cycloid wheel 11 is provided with a plurality of holes, the holes are movably inserted with output pins 10, the output pins 10 are sleeved with output pin sleeves 9, and the right ends of the output pins 10 are fixedly connected with an output shaft 15.
Working principle: the cycloidal gear 11 eccentric with the input shaft 1 is meshed with the movable tooth pins 12 which are uniformly distributed on the outer periphery and can be fixed in the normal direction of the radial moving surface, the movable tooth pins 12 are embedded into the U-shaped grooves which can be movably matched, the function of the traditional needle gear is achieved through radial limiting of the movable tooth pins 12, the manufacturing difficulty and the manufacturing cost are greatly reduced, the number of the movable tooth pins 12 is larger than the number of teeth of the cycloidal gear 11, when the cycloidal gear 11 eccentrically rotates, the teeth of the cycloidal gear 11 are meshed with the movable tooth pins 12, the meshing is equivalent to a small tooth difference structure, and the eccentric revolution of the cycloidal gear 11 is a small tooth difference deceleration rotation, so that the deceleration purpose is achieved;
instead of the conventional cycloidal pin gear speed reducer, when the cycloidal gear 11 is meshed with the movable toothed pin 12, the outer diameter of the movable toothed pin 12 is in contact with the inner circle on one side of the housing 17, and when the input shaft 1 rotates to drive the eccentric bearing assembly 8 to rotate, the cycloidal gear 11 also rotates around the eccentric bearing assembly 8, and since the cycloidal gear 11 is meshed with the movable toothed pin 12 and the movable toothed pin 12 is fixed in the normal direction, the rotating cycloidal gear 11 rotates and revolves, and the cycloidal gear 11 is connected to the output shaft 15 by the output pin 10, thereby achieving the purpose of speed reduction.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A movable tooth cycloidal reducer comprising: input shaft (1), oscillating rack input end cover assembly (4), output shaft (15) and shell (17), its characterized in that: the shell (17) is fixedly connected with the movable rack input end cover assembly (4) to form a cavity;
a plurality of movable teeth (18) are uniformly distributed on the movable tooth rack input end cover assembly (4), movable tooth pins (12) are clamped between two adjacent movable teeth (18), and the movable tooth pins (12) are cylindrical;
the movable teeth (18) of the movable rack input end cover assembly (4) are inserted into the shell (17) from left to right, the edges of the movable teeth (18) are attached to the inner wall of the shell (17), a U-shaped groove is formed between the movable teeth (18) and the shell (17), the opening of the U-shaped groove is smaller than the inner diameter, and the movable tooth pin (12) is clamped in the U-shaped groove.
2. A movable tooth cycloidal reducer according to claim 1 characterized in that the movable tooth carrier input end cap assembly (4) is fixedly connected to the housing (17) by means of socket head cap bolts (5).
3. A movable tooth cycloidal reducer according to claim 1, characterized in that the input shaft (1) penetrates the movable tooth rack input end cover assembly (4), and the input shaft (1) is rotatably connected with the movable tooth rack input end cover assembly (4) through the first bearing (3), and the connection part of the input shaft (1) and the movable tooth rack input end cover assembly (4) is further sleeved with a clamp spring (2).
4. A movable tooth cycloidal reducer according to claim 3, characterized in that the right end of the input shaft (1) is rotatably connected with the output shaft (15) through the second bearing (14), the output shaft (15) is rotatably connected with the inner wall of the housing (17) through the third bearing (16), and the right end of the output shaft (15) penetrates through the housing (17) and is connected with an external transmission member.
5. A movable cycloidal reducer according to claim 4, characterized in that the part of the input shaft (1) located in the housing (17) is sleeved with an eccentric bearing assembly (8), the eccentric bearing assembly (8) being fixedly connected to the input shaft (1) by means of a flat key (7).
6. A movable cycloidal reducer according to claim 5, characterized in that the eccentric bearing assembly (8) is provided with a first shim (6) and a second shim (13) at each end.
7. A movable tooth cycloidal reducer according to claim 6, characterized in that a pair of cycloidal gears (11) is fixedly mounted on the eccentric bearing assembly (8), the edge teeth of the cycloidal gears (11) are engaged with movable tooth pins (12), and the number of movable tooth pins (12) is larger than the number of teeth of the cycloidal gears (11).
8. The movable tooth cycloidal reducer according to claim 7, wherein a plurality of holes are formed in the cycloidal gear (11), an output pin (10) is movably inserted into the holes, an output pin sleeve (9) is sleeved on the output pin (10), and the right end of the output pin (10) is fixedly connected with an output shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322131453.5U CN220646638U (en) | 2023-08-09 | 2023-08-09 | Movable tooth cycloid speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322131453.5U CN220646638U (en) | 2023-08-09 | 2023-08-09 | Movable tooth cycloid speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220646638U true CN220646638U (en) | 2024-03-22 |
Family
ID=90297407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322131453.5U Active CN220646638U (en) | 2023-08-09 | 2023-08-09 | Movable tooth cycloid speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220646638U (en) |
-
2023
- 2023-08-09 CN CN202322131453.5U patent/CN220646638U/en active Active
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