CN215171995U - Closed flexible gear harmonic speed reducer - Google Patents
Closed flexible gear harmonic speed reducer Download PDFInfo
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- CN215171995U CN215171995U CN202120963517.6U CN202120963517U CN215171995U CN 215171995 U CN215171995 U CN 215171995U CN 202120963517 U CN202120963517 U CN 202120963517U CN 215171995 U CN215171995 U CN 215171995U
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Abstract
The utility model discloses a closed flexbile gear harmonic speed reducer ware, include: the casing, be provided with rigid wheel, harmonic generator and flexbile gear in the casing, closed flexbile gear harmonic speed reducer ware still is provided with input shaft and output shaft, the flexbile gear is cup-shaped structure, the flexbile gear is including the installation face, the installation face passes through the sealing washer to be fixed on the inner wall of casing, harmonic generator sets up in the rim of a cup of flexbile gear, the rigid wheel sets up the bottom of a cup outside of flexbile gear. The utility model discloses a space separation in cup-shaped structure's flexbile gear is the casing of closed flexbile gear harmonic drive reduction gear is two spaces, and fixed through rubber seal, strengthens the leakproofness of closed flexbile gear harmonic drive reduction gear inner space, prevents that the output from having poisonous, harmful gas or having the radiant air to get into input normal use environment, has protected that the operator is healthy.
Description
Technical Field
The utility model relates to a mechanical transmission technical field especially relates to a closed flexbile gear harmonic speed reducer ware.
Background
The harmonic drive reducer is a mechanical drive reducer which transmits power and motion by generating controllable elastic mechanical waves through flexible parts.
The conventional harmonic drive reducer is generally of an open type (without a cup bottom) structure, the air tightness is poor, the use environment of an input end is normal air or non-radiation, and when the output end is in a toxic or harmful gas or radiation environment, the reducer is not well sealed, so that the body of a user is injured. The application environment of the open-type (cup bottom-free) flexible gear harmonic reducer has certain limitation, and is not suitable for being used in toxic and harmful gas or radiation environments.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the embodiment of the utility model provides a closed flexbile gear harmonic speed reducer ware.
For solving the technical problem, the embodiment of the utility model adopts the following technical scheme:
an enclosed flexspline harmonic reducer comprising: a shell, a rigid gear, a harmonic generator and a flexible gear are arranged in the shell, the closed flexible gear harmonic reducer is also provided with an input shaft and an output shaft, the closed flexible gear harmonic reducer is characterized in that,
the flexible gear is of a cup-shaped structure and comprises an installation surface, the installation surface is fixed on the inner wall of the shell through a sealing ring, the harmonic generator is arranged in a cup opening of the flexible gear, and the rigid gear is arranged outside a cup bottom of the flexible gear.
Preferably, the mounting surface is located at the edge of a cup rim flange of the flexible wheel.
Preferably, the seal ring is a rubber seal ring.
Preferably, the harmonic generator changes the input rotation into a decelerated output rotation by rotationally cooperating with the flexspline.
Preferably, internal teeth are arranged on the rigid wheel, external teeth are arranged on the outer side surface of the flexible gear, and the internal teeth are meshed with the external teeth, so that the flexible gear is in meshed transmission connection with the rigid wheel.
Preferably, a harmonic drive connection is formed between the harmonic generator, the flexspline and the rigid spline to provide speed reduction and drive output torque through the output shaft.
Preferably, the output shaft is provided with two output bearings, and the two output bearings are arranged in parallel and abut against the shell.
Preferably, the closed-type flexible gear harmonic reducer is provided with a motor, and the motor is connected with the harmonic generator.
Compared with the prior art, the utility model discloses a closed flexbile gear harmonic speed reducer ware not only has the characteristics that simple structure, light in weight, drive ratio are big and the transmission precision is high of general harmonic drive speed reducer ware, can directly be applied to the occasion that requirements such as vacuum, hypertoxic, radioactivity are sealed to sealed space transmission motion moreover, has overcome the shortcoming of open-type (no bottom of cup) flexbile gear harmonic speed reducer ware to service environment limitation.
Drawings
Fig. 1 is a schematic structural diagram of the closed flexible gear harmonic reducer of the present invention.
Reference numerals:
1-a shell; 2-a harmonic drive; 3-a rigid wheel; 4-harmonic generator; 5-flexible gear; 6-a bearing; 7-an output shaft; 8-sealing ring; 9-a motor; 10-inner wall.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model discloses a closed flexbile gear harmonic speed reducer ware, include: the harmonic drive mechanism 2 is arranged in the shell 1, the harmonic drive mechanism 2 comprises a rigid gear 3, a harmonic generator 4 and a flexible gear 5, the flexible gear 5 is of a cup-shaped structure, the flexible gear 5 comprises an installation surface, the installation surface is fixed on the inner wall 10 of the shell 1 through a sealing ring 8, the harmonic generator 4 is arranged in a cup opening of the flexible gear 5, and the rigid gear 3 is arranged outside the cup bottom of the flexible gear 5. The mounting surface is positioned at the edge of the cup opening flanging of the flexible gear 5. The seal ring 8 is a rubber seal ring. The flexspline 5 provided in the housing 1 is fixed to the inner wall 10 of the housing 1 via a mounting surface, and divides the space in the housing 1 into two spaces. When the flexible gear type harmonic generator works, the harmonic generator 4 is input and output by the rigid gear 3, and the flexible gear 5 with a cup-shaped structure and a closed structure is fixed on the inner wall 10 of the shell 1 and sealed by the sealing ring 8 serving as a rubber sealing ring because the flexible gear 5 has the characteristic of a rigid flange, so that two spaces are separated by the flexible gear 5, dynamic sealing is converted into static sealing, and the sealing performance is more reliable.
The harmonic generator 4 changes the input rotation into a decelerated output rotation by rotationally cooperating with the flexspline 5. Be provided with the internal tooth on the rigid wheel 3, be provided with the external tooth on the outside surface of flexbile gear 5, the internal tooth meshes with the external tooth to make flexbile gear 5 and rigid wheel 3 meshing transmission be connected. Harmonic drive connection structures are formed among the harmonic generator 4, the flexible gear 5 and the rigid gear 3 to provide speed reduction and drive output torque through the output shaft 7. Two output bearings 6 are arranged on the output shaft 7, and the two output bearings 6 are arranged in parallel and are abutted with the shell 1. The closed flexible gear harmonic reducer is provided with a motor 9, and the motor 9 is connected with the harmonic generator.
The flexible gear 5 is fixed, the harmonic generator 4 drives, the rigid gear 3 drives, the driven rigid gear 3 and the driving harmonic generator 4 rotate in the same direction, the closed flexible gear harmonic reducer can still achieve the speed reduction function, can be applied to occasions requiring sealing, such as vacuum, severe toxicity, radioactivity and the like, and overcomes the defect that the open flexible gear harmonic reducer is limited to the use environment.
This closed flexbile gear harmonic drive reduction gear, the installation face of flexbile gear 5 has increased the sealing washer 8 as rubber seal, prevents that there is poisonous, harmful gas or has the radiation air to get into input normal use environment in the output, has protected operator's health. The closed flexible gear harmonic drive reducer not only has the characteristics of simple structure, light weight, large transmission ratio and high transmission precision of common harmonic drive, but also can directly transmit motion to a sealed space.
The utility model discloses above-mentioned embodiment provides a closed flexbile gear harmonic drive reduction gear's beneficial effect lies in: the flexible gear of the closed flexible gear harmonic drive speed reducer is of a closed structure and is provided with a flexible gear of a cup-shaped structure, the mounting surface of the flexible gear is fixed on the inner wall of the shell of the closed flexible gear harmonic drive speed reducer, the space in the shell of the closed flexible gear harmonic drive speed reducer is divided into two spaces, and the two spaces are fixed through rubber sealing rings, so that the sealing performance of the inner space of the closed flexible gear harmonic drive speed reducer is enhanced. The closed flexible gear harmonic drive reducer can be applied to the environment requiring sealing, such as vacuum, severe toxicity, radioactivity and the like, overcomes the defect of limitation of an open flexible gear harmonic reducer on the use environment, prevents toxic and harmful gases or radiated air existing at an output end from entering the normal use environment of the input end, protects the body health of an operator, and avoids occupational diseases of the operator.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (8)
1. An enclosed flexspline harmonic reducer comprising: a shell, a rigid gear, a harmonic generator and a flexible gear are arranged in the shell, the closed flexible gear harmonic reducer is also provided with an input shaft and an output shaft, the closed flexible gear harmonic reducer is characterized in that,
the flexible gear is of a cup-shaped structure and comprises an installation surface, the installation surface is fixed on the inner wall of the shell through a sealing ring, the harmonic generator is arranged in a cup opening of the flexible gear, and the rigid gear is arranged outside a cup bottom of the flexible gear.
2. The enclosed flexspline harmonic reducer of claim 1, wherein the mounting surface is located at an edge of a cup rim of the flexspline.
3. The enclosed flexspline harmonic reducer of claim 1, wherein the seal is a rubber seal.
4. The enclosed flexspline harmonic reducer of claim 1, wherein the harmonic generator changes input rotation to decelerated output rotation by rotationally engaging the flexspline.
5. The enclosed flexspline harmonic reducer of claim 1, further comprising: be provided with the internal tooth on the rigid wheel, the outside of flexbile gear is provided with the external tooth on the surface, the internal tooth with the external tooth meshing, so that the flexbile gear with rigid wheel meshing transmission is connected.
6. The enclosed flexspline harmonic reducer of claim 1 wherein a harmonic drive connection is formed between the harmonic generator, the flexspline and the circular spline to provide both speed reduction and drive output torque through the output shaft.
7. The enclosed flexspline harmonic reducer of claim 1 wherein there are two output bearings on the output shaft, the two output bearings being parallel and abutting the housing.
8. The enclosed flexspline harmonic reducer of claim 1, wherein the enclosed flexspline harmonic reducer is provided with an electric motor, the electric motor being connected to the harmonic generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120963517.6U CN215171995U (en) | 2021-05-07 | 2021-05-07 | Closed flexible gear harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120963517.6U CN215171995U (en) | 2021-05-07 | 2021-05-07 | Closed flexible gear harmonic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171995U true CN215171995U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120963517.6U Active CN215171995U (en) | 2021-05-07 | 2021-05-07 | Closed flexible gear harmonic speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171995U (en) |
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2021
- 2021-05-07 CN CN202120963517.6U patent/CN215171995U/en active Active
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