CN216768241U - Transmission assembly of cycloidal speed reducer and cycloidal speed reducer - Google Patents
Transmission assembly of cycloidal speed reducer and cycloidal speed reducer Download PDFInfo
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- CN216768241U CN216768241U CN202122946614.7U CN202122946614U CN216768241U CN 216768241 U CN216768241 U CN 216768241U CN 202122946614 U CN202122946614 U CN 202122946614U CN 216768241 U CN216768241 U CN 216768241U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 42
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 24
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The utility model provides a transmission assembly of a cycloidal speed reducer, which comprises a pin gear shell, a cycloidal gear and a plurality of pin gear assemblies, wherein the cycloidal gear is positioned in the pin gear shell, the pin gear assemblies are uniformly distributed along the circumferential direction of the inner side of the pin gear shell, each pin gear assembly comprises a pin gear pin and a pin gear bearing, the inner ring of each pin gear bearing is fixed on the pin gear pin, and the outer ring of each pin gear bearing is in meshing transmission with the gear teeth of the cycloidal gear; in the transmission process, the outer ring of the pin gear bearing is not in contact with the pin gear shell, so that smooth transmission can be realized, the rotation precision of the pin gear component is not required to be positioned through a raceway on the pin gear shell, the processing requirement of the pin gear shell is reduced, and the purpose of reducing the processing cost of the pin gear shell is achieved.
Description
Technical Field
The utility model belongs to the field of speed reducers, and particularly relates to a transmission assembly of a cycloidal speed reducer and the cycloidal speed reducer.
Background
At present, in a cycloid speed reducer, a pin gear pin is generally adopted to directly contact with a cycloid wheel for transmission, but the transmission mode needs the pin gear pin to smoothly rotate in a raceway of a pin gear shell, and in order to reduce friction heat and ensure transmission precision, the processing precision of the raceway on the pin gear shell needs to be improved as much as possible; the main measure for improving the machining precision is to use higher-level machining equipment for machining, which means that the machining cost is greatly increased, and the marketization is not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the present invention aims to provide a transmission assembly of a cycloid speed reducer and the cycloid speed reducer, which adopt a structure of a pin gear pin and a pin gear bearing to replace the original structure of the pin gear pin and a raceway, so as to reduce the processing requirement of a pin gear shell while ensuring the transmission efficiency, thereby achieving the purpose of reducing the processing cost of the pin gear shell.
In order to achieve the above and other related objects, the present invention provides a transmission assembly of a cycloidal reducer, comprising a pin gear case, a cycloidal gear located in the pin gear case, and a plurality of pin gear assemblies uniformly distributed along the circumferential direction of the inner side of the pin gear case, wherein each pin gear assembly comprises a pin gear pin and a pin gear bearing, the inner ring of the pin gear bearing is fixed on the pin gear pin, and the outer ring of the pin gear bearing is in meshing transmission with the gear teeth of the cycloidal gear; in the transmission process, the outer ring of the pin gear bearing is not in contact with the pin gear shell, so that smooth transmission can be realized, the processing requirement of the pin gear shell is reduced, and the purpose of reducing the processing cost of the pin gear shell is achieved.
Preferably, the transmission assembly comprises an annular supporting disc, an annular table is arranged on the inner wall of the pin gear shell, and a plurality of first pin holes for mounting pin gear pins are uniformly distributed on the annular table; the annular supporting disk is provided with a second pin hole matched with the first pin hole, the annular table is matched with the annular supporting disk to limit axial movement of the pin gear bearing and form double supports for the pin gear pin and the pin gear bearing to improve installation reliability, and installation difficulty of the pin gear bearing is reduced.
Preferably, the inner wall of the pin gear shell is provided with a containing groove for partially containing the pin gear bearing, and the containing groove is a semi-cylindrical groove so as to reduce the overall size and improve the compactness of the structure.
The utility model also provides a cycloidal speed reducer, which comprises an eccentric input shaft, a first output disc, a second output disc and the transmission assembly, wherein an eccentric bearing is fixedly arranged on the eccentric input shaft, and the cycloidal gear is arranged on the eccentric bearing; the cycloidal gear is provided with a plurality of first insertion holes and second insertion holes which are distributed circumferentially, and a transmission pin is arranged in each first insertion hole and inserted into the first output disc; a locking screw is arranged in the second inserting hole; the first output disc and the second output disc are both arranged on the eccentric input shaft through a first bearing, and the first output disc and the second output disc are respectively positioned on two sides of the cycloid wheel; the first output disc and the second output disc are both arranged in the needle gear shell through second bearings; the first output disc is connected with the second output disc through the locking screw; when the eccentric input shaft rotates, the cycloidal gear realizes plane motion with revolution and rotation under the limitation of the pin gear bearing, the first insertion hole pushes the transmission pin to rotate, the rotation of the first output disc is realized, and the second output disc rotates along with the first output disc and the second output disc because the first output disc is fixedly connected with the second output disc, so that the function of inputting two outputs is realized.
As described above, the transmission assembly of the cycloidal reducer and the cycloidal reducer of the utility model have the following beneficial effects:
the structure through adopting pin gear round pin + pin gear bearing replaces the structure of pin gear round pin + raceway originally, when guaranteeing transmission efficiency for pin gear bearing outer lane does not contact with the pin gear shell, avoids the pin gear shell to influence the transmission of pin gear bearing, has reduced the processing requirement of pin gear shell, thereby reaches the purpose that reduces pin gear shell processing cost.
Drawings
Fig. 1 is a front sectional view of a transmission assembly in a cycloidal reducer according to the utility model.
FIG. 2 is a schematic view of the pin tooth assembly of the present invention.
Fig. 3 is an exploded view of the transmission assembly of the present invention.
Fig. 4 is a side sectional view of the cycloidal reducer of the present invention.
Fig. 5 is an exploded view of the cycloidal reducer of the present invention.
Description of the reference numerals
The planetary gear transmission mechanism comprises a pin gear shell 1, an annular table 11, a first pin hole 11a, an accommodating groove 12, a cycloidal gear 2, a first insertion hole 21, a transmission pin 21a, a second insertion hole 22, a locking screw 22a, a pin gear pin 31, a pin gear bearing 32, an annular supporting plate 4, a second pin hole 4a, an eccentric input shaft 5, an eccentric bearing 51, a first output plate 6, a second output plate 7, a first bearing 81 and a second bearing 82.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 3, the utility model provides a transmission assembly of a cycloidal speed reducer, which comprises a pin gear shell 1, a cycloidal gear 2 positioned in the pin gear shell 1 and a plurality of pin gear assemblies uniformly distributed along the circumferential direction of the inner side of the pin gear shell 1; the needle tooth assembly comprises a needle tooth pin 31 and a needle tooth bearing 32, wherein the inner ring of the needle tooth bearing 32 is fixed on the needle tooth pin 31, and the outer ring of the needle tooth bearing 32 is in meshing transmission with the gear teeth of the cycloidal gear 2.
Because the structure of the pin gear pin 31+ the pin gear bearing 32 is adopted to replace the structure of the traditional pin gear pin 31+ roller path, the pin gear shell 1 is not required to be provided with the roller path, the processing precision requirement of the pin gear shell 1 is reduced, the purpose of reducing the processing cost of the pin gear shell is achieved, and the marketization is facilitated.
As shown in fig. 3, the transmission assembly includes an annular support plate 4, an annular table 11 is disposed on the inner wall of the pin gear housing 1, and a plurality of first pin holes 11a for mounting the pin gear pins 31 are uniformly distributed on the annular table 11; the annular supporting disk 4 is provided with a second pin hole 4a matched with the first pin hole 11a, the annular table 11 is matched with the annular supporting disk 4 to limit axial movement of the needle tooth bearing 32, and the needle tooth pin 31 and the needle tooth bearing 32 are installed by matching the annular table 11 and the annular supporting disk 4, so that the installation difficulty is reduced.
Further, as shown in fig. 3, the inner wall of the pin gear housing 1 is provided with a receiving groove 12 for partially receiving the pin gear bearing 32, and the receiving groove 12 is a semi-cylindrical groove, so as to reduce the overall size of the structure and improve the compactness of the structure.
As shown in fig. 1, 4 and 5, the present invention further provides a cycloidal reducer, which comprises an eccentric input shaft 5, a first output disc 6, a second output disc 7 and the transmission assembly, wherein an eccentric bearing 51 is fixedly installed on the eccentric input shaft 5, and the cycloidal gear 2 is installed on the eccentric bearing 51; a plurality of first insertion holes 21 and second insertion holes 22 which are circumferentially distributed are formed in the cycloidal gear 2, a transmission pin 21a is arranged in the first insertion hole 21, and the transmission pin 21a is inserted and connected onto the first output disc 6; a locking screw 22a is arranged in the second insertion hole 22; the first output disc 6 and the second output disc 7 are both mounted on the eccentric input shaft 5 through a first bearing 81, and the first output disc 6 and the second output disc 7 are respectively positioned on two sides of the cycloidal gear 2; the first output disc 6 and the second output disc 7 are both arranged in the needle gear housing 1 through a second bearing 82; the first output disc 6 and the second output disc 7 are connected by the locking screw 22 a.
When the eccentric input shaft 5 rotates, the cycloid wheel 2 on the eccentric input shaft realizes the plane motion of revolution and rotation under the limitation of the pin gear assembly, so that the driving pin 21a revolves under the pushing of the first insertion hole 21 on the cycloid wheel 2, the rotation of the first output disc 6 is realized, and the first output disc 6 is fixedly connected with the second output disc 7, and the transmission form of one input and two outputs is realized.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (4)
1. A transmission assembly of a cycloidal speed reducer comprises a pin gear shell (1), a cycloidal gear (2) positioned in the pin gear shell (1) and a plurality of pin gear assemblies uniformly distributed along the circumferential direction of the inner side of the pin gear shell (1); the gear rack component is characterized by comprising a gear rack pin (31) and a gear rack bearing (32), wherein the inner ring of the gear rack bearing (32) is fixed on the gear rack pin (31), and the outer ring of the gear rack bearing (32) is in meshing transmission with the gear teeth of the cycloidal gear (2).
2. The transmission assembly of the cycloidal reducer according to claim 1, wherein the transmission assembly comprises an annular support plate (4), an annular table (11) is arranged on the inner wall of the pin gear shell (1), and a plurality of first pin holes (11a) for mounting pin gears (31) are uniformly distributed on the annular table (11); and a second pin hole (4a) matched with the first pin hole (11a) is formed in the annular supporting disk (4), and the annular table (11) is matched with the annular supporting disk (4) to limit the axial movement of the pin gear bearing (32).
3. The transmission assembly of the cycloidal reducer according to claim 2, wherein the inner wall of the pin gear shell (1) is provided with a containing groove (12) for partially containing the pin gear bearing (32), and the containing groove (12) is a semi-cylindrical groove.
4. A cycloidal reducer, comprising an eccentric input shaft (5), a first output disc (6), a second output disc (7) and a transmission assembly according to any one of claims 1 to 3, wherein an eccentric bearing (51) is fixedly mounted on the eccentric input shaft (5), and the cycloidal gear (2) is mounted on the eccentric bearing (51); the cycloidal gear (2) is provided with a plurality of first insertion holes (21) and second insertion holes (22) which are circumferentially distributed, a transmission pin (21a) is arranged in the first insertion hole (21), and the transmission pin (21a) is inserted and connected onto the first output disc (6); a locking screw (22a) is arranged in the second insertion hole (22); the first output disc (6) and the second output disc (7) are both mounted on the eccentric input shaft (5) through first bearings (81), and the first output disc (6) and the second output disc (7) are respectively located on two sides of the cycloidal gear (2);
the first output disc (6) and the second output disc (7) are both arranged in the needle gear shell (1) through a second bearing (82); the first output disc (6) and the second output disc (7) are connected through the locking screws (22 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122946614.7U CN216768241U (en) | 2021-11-29 | 2021-11-29 | Transmission assembly of cycloidal speed reducer and cycloidal speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122946614.7U CN216768241U (en) | 2021-11-29 | 2021-11-29 | Transmission assembly of cycloidal speed reducer and cycloidal speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216768241U true CN216768241U (en) | 2022-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122946614.7U Active CN216768241U (en) | 2021-11-29 | 2021-11-29 | Transmission assembly of cycloidal speed reducer and cycloidal speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216768241U (en) |
-
2021
- 2021-11-29 CN CN202122946614.7U patent/CN216768241U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Jintou Finance Leasing Co.,Ltd. Assignor: HANGZHOU CHENGTIAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Contract record no.: X2022980028314 Denomination of utility model: A transmission component of cycloid reducer and cycloid reducer Granted publication date: 20220617 License type: Exclusive License Record date: 20230112 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A transmission component of cycloid reducer and cycloid reducer Effective date of registration: 20230116 Granted publication date: 20220617 Pledgee: Hangzhou Jintou Finance Leasing Co.,Ltd. Pledgor: HANGZHOU CHENGTIAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980031436 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Hangzhou Jintou Finance Leasing Co.,Ltd. Assignor: HANGZHOU CHENGTIAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Contract record no.: X2022980028314 Date of cancellation: 20240327 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220617 Pledgee: Hangzhou Jintou Finance Leasing Co.,Ltd. Pledgor: HANGZHOU CHENGTIAN TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2023980031436 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |