CN220337381U - Novel cycloidal pin gear speed reducer - Google Patents
Novel cycloidal pin gear speed reducer Download PDFInfo
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- CN220337381U CN220337381U CN202322129739.XU CN202322129739U CN220337381U CN 220337381 U CN220337381 U CN 220337381U CN 202322129739 U CN202322129739 U CN 202322129739U CN 220337381 U CN220337381 U CN 220337381U
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- speed reducer
- pin gear
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 33
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a novel cycloidal pin gear speed reducer, which belongs to the field of speed reducers and comprises a pin gear shell, an input disc positioned at one end of the pin gear shell, an output disc positioned at one end of the pin gear shell far away from the input disc, two cycloidal discs positioned in the pin gear shell and an input mechanism arranged on the input disc, wherein a pin gear ring is arranged in the pin gear shell corresponding to the outer side of the cycloidal disc, pin teeth meshed with the cycloidal disc are distributed on the inner peripheral wall of the pin gear ring at equal intervals, and the joint part of the pin teeth and the cycloidal disc is a cambered surface. The speed reducer has simple structure and convenient use, and the needle teeth ring are integrally designed, so that the needle teeth shell can be conveniently processed, and the processing cost is effectively reduced; meanwhile, under the condition of the same reduction ratio, the strength of the needle teeth can be effectively ensured, and the risks of deformation and fracture of the needle teeth are reduced, so that the service life of the speed reducer is effectively ensured.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a novel cycloidal pin gear speed reducer.
Background
The cycloidal pin gear speed reducer is a novel transmission device which adopts cycloidal pin gear meshing and applies cycloidal motion track transmission principle. 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.
In the existing cycloidal pin gear speed reducer, a manner that a needle roller rotatably arranged in a pin gear shell contacts with a cycloidal gear is generally adopted for transmission, and when the needle roller is assembled with the pin gear shell, the requirement on assembly precision is high, so that the pin gear shell is inconvenient to assemble; meanwhile, in order to ensure the strength of the needle roller, the diameter of the needle roller needs to be increased, so that the size of the needle roller is increased, the reduction ratio of the speed reducer is affected, and in order to improve the reduction ratio, the diameter of the needle roller needs to be reduced, so that the strength of the needle roller is easily reduced, and the service life of the speed reducer is affected.
Disclosure of Invention
(one) solving the technical problems
The utility model provides a novel cycloidal pin gear speed reducer, and aims to solve the problems that in the prior speed reducer, the assembly precision requirement of a needle roller and a needle gear shell is high, the assembly of the needle gear shell is inconvenient, the speed reduction ratio of the speed reducer is difficult to ensure under the condition that the strength of the needle roller is ensured, the precision of the needle roller is difficult to ensure under the condition that the speed reduction ratio is ensured, and the like.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel cycloidal pin gear speed reducer, includes the needle tooth shell, is located the input disc of needle tooth shell one end, be located the needle tooth shell is kept away from the output disc of input disc one end, be located two cycloidal discs and set up in inside the needle tooth shell input mechanism on the input disc. In order to facilitate the machining and assembly of the pin gear shell, the strength of the pin gear is ensured under the condition of ensuring the reduction ratio of the speed reducer so as to ensure the service life of the speed reducer; a needle tooth ring is arranged in the needle tooth shell corresponding to the outer side of the cycloid disc, and needle teeth meshed with the cycloid disc are distributed on the inner peripheral wall of the needle tooth ring at equal intervals; in order to ensure the transmission efficiency, the joint parts of the pin teeth and the cycloidal discs are cambered surfaces.
Preferably, first bearings corresponding to the input disc and the output disc respectively are arranged on the inner walls of the two ends of the pin gear shell.
Preferably, the output disc is provided with at least two pins distributed in a ring array, and one end of each pin, far away from the output disc, sequentially penetrates through the two wobble plates and is connected with the input disc.
Preferably, three pins are provided in total.
Preferably, the input mechanism comprises an eccentric shaft, a planetary gear, a sun gear and an input shaft, wherein the eccentric shaft is arranged at intervals with the pin, the planetary gear is fixedly sleeved at one end of the eccentric shaft corresponding to the input disc, the sun gear is coaxially arranged with the input disc and meshed with the planetary gear, and the input shaft is positioned at one end of the sun gear far away from the input disc; the eccentric shaft is rotationally connected with the input disc, the cycloid disc and the output disc, and sequentially penetrates through the input disc, the two cycloid discs and is connected with the output disc.
Preferably, the eccentric shafts are sleeved with eccentric sleeves at positions corresponding to the two wire placing discs, and the eccentric shafts are sleeved with second bearings at positions corresponding to the input disc and the output disc.
Preferably, the swing wire disc is provided with a pin hole corresponding to the pin, and the outer diameter of the pin hole is the sum of the outer diameter and the eccentric distance of the pin.
(III) beneficial effects
The speed reducer has simple structure and convenient use, and the needle teeth ring are integrally designed, so that the needle teeth shell can be conveniently processed, and the processing cost is effectively reduced; meanwhile, under the condition of the same reduction ratio, the strength of the needle teeth can be effectively ensured, and the risks of deformation and fracture of the needle teeth are reduced, so that the service life of the speed reducer is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of a novel cycloidal pin gear speed reducer;
FIG. 2 is a schematic diagram of an exploded construction of a novel cycloidal pin gear speed reducer;
fig. 3 is a schematic diagram of an assembly structure of a cycloidal gear and a pin gear housing in a novel cycloidal pin gear speed reducer.
In the figure:
1. needle gear shell;
11. a needle ring gear;
111. needle teeth;
12. a first bearing;
2. an input tray;
3. an output tray;
31. a pin;
4. a swinging wire disc;
41. a pin hole;
5. an input mechanism;
51. an eccentric shaft;
511. an eccentric sleeve;
512. a second bearing;
52. a planetary gear;
53. a sun gear;
54. an input shaft.
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.
The utility model provides a novel cycloidal pin gear speed reducer, which comprises a pin gear shell 1, an input disc 2 positioned at one end of the pin gear shell 1, an output disc 3 positioned at one end of the pin gear shell 1 far away from the input disc 2, two cycloidal discs 4 positioned inside the pin gear shell 1 and an input mechanism 5 arranged on the input disc 2, as shown in fig. 1, 2 and 3. Wherein, the inner walls of the two ends of the needle gear shell 1 are provided with first bearings 12 respectively corresponding to the input disc 2 and the output disc 3.
Compared with the existing speed reducer, for convenient machining and assembly of the pin gear housing 1, meanwhile, under the condition of the same speed reduction ratio, the strength of the pin gear 111 is guaranteed, a pin gear ring 11 is arranged in the pin gear housing 1 corresponding to the outer side of the cycloidal disc 4, pin gears 111 meshed with the cycloidal disc 4 are distributed on the inner peripheral wall of the pin gear ring 11 at equal intervals, and the pin gears 111 and the pin gear ring 11 are integrally formed. In order to ensure the transmission efficiency, the contact parts of the needle teeth 111 and the cycloidal disc 4 are cambered surfaces.
Further, in order to transfer the deceleration motion to the output disc 3, at least two pins 31 distributed in a ring array are disposed on the output disc 3, and one end of each pin 31 away from the output disc 3 sequentially penetrates through the two cycloid discs 4 and is connected with the input disc 2. Wherein three pins 31 are provided in total. When the input mechanism 5 drives the wobble plate 4 to rotate on the pin housing 1, the pin 31 transfers the movement of the wobble plate 4 to the output plate 3, so that the output plate 3 performs a decelerating movement relative to the input mechanism 5.
Further, in order to drive the wobble plate 4 to rotate on the pin housing 1 to realize a decelerating motion, the input mechanism 5 includes an eccentric shaft 51 spaced from the pin 31, a planetary gear 52 fixedly sleeved on one end of the eccentric shaft 51 corresponding to the input plate 2, a sun gear 53 coaxially disposed with the input plate 2 and meshed with the planetary gear 52, and an input shaft 54 positioned on one end of the sun gear 53 away from the input plate 2; the eccentric shaft 51 is rotatably connected with the input disc 2, the cycloid discs 4 and the output disc 3, and the eccentric shaft 51 sequentially penetrates through the input disc 2, the two cycloid discs 4 and is connected with the output disc 3. The eccentric shafts 51 are respectively sleeved with an eccentric sleeve 511 at positions corresponding to the two cycloid discs 4, and the eccentric shafts 51 are respectively sleeved with a second bearing 512 at positions corresponding to the input disc 2 and the output disc 3. In use, the input shaft 54 drives the sun gear 53 to rotate, so as to drive the planetary gear 52 to rotate, under the action of the second bearing 512, the eccentric shaft 51 is driven to rotate on the input disc 2, under the cooperation of the eccentric sleeve 511 and the pin 31, the rotation motion of the eccentric shaft 51 is converted into revolution motion of the cycloid disc 4, and under the action of the pin housing 1, the deceleration motion is realized, and the motion is transmitted to the output disc 3 for output through the cooperation of the pin 31.
The cycloid disc 4 is provided with a pin hole 41 corresponding to the pin 31, and the outer diameter of the pin hole 41 is the sum of the outer diameter and the eccentric distance of the pin 31.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a novel cycloidal pin gear speed reducer, includes needle gear housing (1), is located input dish (2) of needle gear housing (1) one end, be located needle gear housing (1) keep away from output dish (3) of input dish (2) one end, be located two wobble plates (4) inside needle gear housing (1) and set up in input mechanism (5) on input dish (2), its characterized in that: needle teeth (111) meshed with the cycloid disc (4) are distributed on the inner peripheral wall of the needle teeth ring (11) at equal intervals, the needle teeth (111) and the needle teeth ring (11) are integrally formed, and the joint part of the needle teeth (111) and the cycloid disc (4) is a cambered surface.
2. The novel cycloidal pin gear speed reducer according to claim 1, wherein: first bearings (12) corresponding to the input disc (2) and the output disc (3) are arranged on the inner walls of the two ends of the pin gear shell (1).
3. The novel cycloidal pin gear speed reducer according to claim 1, wherein: the output disc (3) is provided with at least two pin columns (31) distributed in an annular array, and one end, far away from the output disc (3), of each pin column (31) sequentially penetrates through the two swing wire discs (4) and is connected with the input disc (2).
4. The novel cycloidal pin gear speed reducer according to claim 3, wherein: the pins (31) are provided with three in total.
5. The novel cycloidal pin gear speed reducer according to claim 3 or 4, characterized in that: the input mechanism (5) comprises an eccentric shaft (51) which is arranged at intervals with the pin (31), a planetary gear (52) which is fixedly sleeved at one end of the eccentric shaft (51) corresponding to the input disc (2), a sun gear (53) which is coaxially arranged with the input disc (2) and meshed with the planetary gear (52), and an input shaft (54) which is positioned at one end of the sun gear (53) far away from the input disc (2); the eccentric shaft (51) is rotationally connected with the input disc (2), the swinging wire discs (4) and the output disc (3), and the eccentric shaft (51) sequentially penetrates through the input disc (2), the two swinging wire discs (4) and is connected with the output disc (3).
6. The novel cycloidal pin gear speed reducer according to claim 5, wherein: eccentric sleeves (511) are sleeved on the eccentric shafts (51) at positions corresponding to the two swinging wire discs (4), and second bearings (512) are sleeved on the eccentric shafts (51) at positions corresponding to the input disc (2) and the output disc (3).
7. The novel cycloidal pin gear speed reducer according to claim 5, wherein: the cycloid disc (4) is provided with a pin hole (41) corresponding to the pin column (31), and the outer diameter of the pin hole (41) is the sum of the outer diameter and the eccentric distance of the pin column (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129739.XU CN220337381U (en) | 2023-08-09 | 2023-08-09 | Novel cycloidal pin gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322129739.XU CN220337381U (en) | 2023-08-09 | 2023-08-09 | Novel cycloidal pin gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220337381U true CN220337381U (en) | 2024-01-12 |
Family
ID=89450959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322129739.XU Active CN220337381U (en) | 2023-08-09 | 2023-08-09 | Novel cycloidal pin gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220337381U (en) |
-
2023
- 2023-08-09 CN CN202322129739.XU patent/CN220337381U/en active Active
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