CN212536584U - Output shaft structure of harmonic reducer - Google Patents
Output shaft structure of harmonic reducer Download PDFInfo
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- CN212536584U CN212536584U CN202020731336.6U CN202020731336U CN212536584U CN 212536584 U CN212536584 U CN 212536584U CN 202020731336 U CN202020731336 U CN 202020731336U CN 212536584 U CN212536584 U CN 212536584U
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- output shaft
- gear
- wave generator
- flexbile gear
- rigid
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an output shaft structure of harmonic speed reducer ware relates to harmonic speed reducer ware field, including flexbile gear, rigid gear, wave generator and output shaft, including the flexbile gear with wave generator and output shaft suit, the rigid gear suit is on the flexbile gear, and the flexbile gear surface is provided with the external tooth, and the inner wall of rigid gear is provided with the internal tooth with flexbile gear surface external tooth meshing, is provided with spline portion on the output shaft, and the wave generator drives the flexbile gear after rotating and rotates and then make the output shaft rotate. The utility model provides a wave generator drives the flexbile gear by external drive power drive and rotates, the teeth of a cogwheel of flexbile gear and rigid gear are nibbling into, the meshing, nibble out, the respective operating condition of in-process constantly change of throw-off, the wrong tooth motion has been produced, thereby the motion transmission of initiative wave generator and flexbile gear has been realized, the mesh of slowing down has been reached, pass through splined connection between the output shaft of the connection on the flexbile gear and the actuating mechanism, make to be connected closely between output shaft and the actuating mechanism, convenient to install and dismantle.
Description
Technical Field
The utility model relates to a technical field of harmonic speed reducer ware particularly, indicates a harmonic speed reducer ware's output shaft structure.
Background
Harmonic reducers are one type of harmonic drive. The harmonic reducer mainly includes: the rigid wheel, the flexible wheel and the wave generator are all absent. Wherein, the tooth track of the rigid gear is slightly larger than the tooth track of the flexible gear. The length of the wave generator is larger than the diameter of the inner circle of the undeformed flexible gear: when the wave generator is installed in the inner circle of the flexible gear, the flexible gear is forced to generate elastic deformation and is elliptical, and the gear teeth of the flexible gear at the long axis of the flexible gear are inserted into the gear teeth grooves of the rigid gear to be in a complete meshing state; and the two wheel teeth at the short shaft are not contacted at all and are in a disengaged state. The engaging or disengaging state is between the engaging and disengaging processes. When the wave generator rotates continuously, the flexible gear is forced to deform continuously, so that the working states of the two gear teeth are changed continuously in the processes of meshing, meshing and disengaging, so-called staggered tooth motion is generated, and the motion transmission of the driving wave generator and the flexible gear is realized.
The interference fit connection mode that adopts between its output shaft of current harmonic speed reducer ware and the actuating mechanism, this kind of connection mode installation is complicated, and the axiality requires highly and is unfavorable for dismantling.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the not enough of prior art, provide an output shaft structure of harmonic speed reducer ware to solve the problem that current harmonic speed reducer ware and actuating mechanism's connected mode is complicated and be unfavorable for the dismantlement.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an output shaft structure of harmonic speed reducer ware, includes flexbile gear, rigid gear, wave generator and output shaft, the flexbile gear will wave generator with including the output shaft suit, the rigid gear suit is in on the flexbile gear, the flexbile gear surface is provided with the external tooth, the inner wall of rigid gear be provided with the meshing of flexbile gear surface external tooth's internal tooth, be provided with spline portion on the output shaft, wave generator rotates the back and drives the flexbile gear rotates and then makes the output shaft rotates.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the wave generator is sleeved with an input shaft, and the input shaft drives the wave generator to rotate after rotating.
Further, a first bearing portion is arranged between the wave generator and the flexible gear.
Further, the first bearing portion is a thin-walled bearing.
Further, a second bearing portion is provided between the flexspline and the output shaft.
The flexible gear, the rigid gear, the wave generator and one end of the output shaft close to the flexible gear are sleeved in the shell.
Furthermore, a first cavity and a second cavity which are communicated with each other are arranged in the shell, the flexible gear, the rigid gear and the wave generator are contained in the first cavity, one side of the output shaft, which is close to the flexible gear, is contained in the second cavity, and the inner diameter of the second cavity is smaller than that of the first cavity.
Furthermore, a third bearing part sleeved on the output shaft is arranged in the second cavity of the shell.
Further, the third bearing portion has a plurality of, a plurality of the third bearing portions are distributed along the axis of the output shaft.
Furthermore, end covers are arranged at two ends of the shell to seal one sides of the flexible gear, the rigid gear, the wave generator and the output shaft close to the flexible gear in the shell.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
the utility model provides a wave generator drives the flexbile gear by external drive power drive and rotates, the teeth of a cogwheel of flexbile gear and rigid gear are nibbling into, the meshing, nibble out, detached in-process constantly changes respective operating condition, the wrong tooth motion has been produced, thereby the motion transmission of initiative wave generator and flexbile gear has been realized, the mesh of slowing down has been reached, pass through splined connection between the output shaft of the connection on the flexbile gear and the actuating mechanism, make to be connected closely between output shaft and the actuating mechanism, be convenient for install and dismantle, simultaneously can also automatically regulated centre of gyration, require lowly to whole complex axiality.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the spline portion of the present invention.
Wherein the figures include the following reference numerals: 100-flexspline, 110-first bearing part, 200-rigid spline, 300-wave generator, 310-input shaft, 400-output shaft, 410-spline, 420-second bearing part, 430-third bearing part, 500-shell, 510-first cavity, 520-second cavity, 530-end cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are merely exemplary of the invention and are not intended to be exhaustive. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, the utility model provides an output shaft structure of harmonic speed reducer ware, including flexbile gear 100, rigid gear 200, wave generator 300 and output shaft 400, including flexbile gear 100 with wave generator 300 and output shaft 400 suit, rigid gear 200 suit is on flexbile gear 100, and flexbile gear 100 surface is provided with the external tooth, and rigid gear 200's inner wall is provided with the internal tooth with the meshing of flexbile gear 100 surface external tooth, is provided with spline portion 410 on the output shaft 400, and wave generator 300 rotates the back and drives flexbile gear 100 rotates and then makes output shaft 400 rotate.
In this embodiment, the wave generator 300 is sleeved with an input shaft 310, the input shaft 310 is connected with a driving element, and the driving element drives the input shaft 310 to rotate and then drives the wave generator 300 to rotate.
In this embodiment, the first bearing portion 110 is disposed between the wave generator 300 and the flexible spline 100, and the first bearing portion 110 is a thin-walled bearing, which is more beneficial for the wave generator 300 to deform the flexible spline 100. Meanwhile, a second bearing part 420 is arranged between the flexible gear 100 and the output shaft 400, specifically, the second bearing part 420 is sleeved on the output shaft 400, and the flexible gear 100 is sleeved on the second bearing part 420.
In this embodiment, the utility model discloses still include casing 500, including casing 500 is close to the one end suit of flexbile gear 100 with flexbile gear 100, rigid gear 200, wave generator 300 and output shaft 400, it is concrete, have the first cavity 510 and the second cavity 520 that are linked together in the casing 500, flexbile gear 100, rigid gear 200 and wave generator 300 holding are in first cavity 510, one side holding that output shaft 400 is close to flexbile gear 100 is in second cavity 520, the internal diameter of second cavity 520 is less than first cavity 510.
Because the diameter of the output shaft 400 is much smaller than the inner diameter of the flexible gear 100, setting the inner diameter of the second cavity 520 smaller than the first cavity 510 can make the structure in the cavity more compact, and at the same time, the inner diameter of the first cavity 510 should be slightly larger than the diameter of the rigid gear 200, so that the rigid gear 200 can be fixed in the first cavity 510 of the housing 500, and the inner diameter of the second cavity 520 should be slightly larger than the diameter of the output shaft 400, so that the output shaft 400 can be fixed, and the output shaft 400 can rotate around its own axis.
In this embodiment, be provided with the third bearing portion 430 of suit on output shaft 400 in the second cavity 520 of casing 500, the outer wall of third bearing portion 430 and the inner wall butt of the second cavity 520 of casing 500 set up third bearing portion 430 and can make output shaft 400 rotate more for following the smoothness, thereby make the utility model discloses a transmission is more accurate. Also, since a region of a certain length of the output shaft 400 is located within the second cavity 520, the third bearing part 430 may be provided in plurality.
In this embodiment, end caps 530 are disposed at both ends of the housing 500 to enclose the flexible spline 100, the rigid spline 200, the wave generator 300 and the output shaft 400 in the housing 500 at a side close to the flexible spline 100, and the diameter of the end caps 530 is matched with the inner diameter of both ends of the housing 500, so that the sealing performance of the housing 500 is ensured and the components in the housing 500 operate more stably.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (8)
1. The output shaft structure of the harmonic reducer is characterized by comprising a flexible gear (100), a rigid gear (200), a wave generator (300) and an output shaft (400), wherein the wave generator (300) and the output shaft (400) are sleeved in the flexible gear (100), the rigid gear (200) is sleeved on the flexible gear (100), external teeth are arranged on the outer surface of the flexible gear (100), internal teeth meshed with the external teeth on the surface of the flexible gear (100) are arranged on the inner wall of the rigid gear (200), a spline part (410) is arranged on the output shaft (400), and the flexible gear (100) is driven to rotate by the rotation of the wave generator (300) so that the output shaft (400) rotates;
wherein a first bearing part (110) is arranged between the wave generator (300) and the flexible gear (100), and the first bearing part (110) is a thin-wall bearing.
2. The output shaft structure of the harmonic reducer according to claim 1, wherein the wave generator (300) is sleeved with an input shaft (310), and the input shaft (310) rotates to drive the wave generator (300) to rotate.
3. An output shaft structure of a harmonic reducer according to claim 1, characterized in that a second bearing portion (420) is provided between the flexspline (100) and the output shaft (400).
4. The output shaft structure of the harmonic reducer according to claim 1, further comprising a housing (500), the housing (500) encasing the flexspline (100), the rigid spline (200), the wave generator (300), and an end of the output shaft (400) near the flexspline (100).
5. The output shaft structure of the harmonic reducer according to claim 4, wherein the housing (500) has a first cavity (510) and a second cavity (520) communicated with each other, the flexible gear (100), the rigid gear (200) and the wave generator (300) are accommodated in the first cavity (510), one side of the output shaft (400) close to the flexible gear (100) is accommodated in the second cavity (520), and the inner diameter of the second cavity (520) is smaller than that of the first cavity (510).
6. An output shaft structure of a harmonic reducer according to claim 5, characterized in that a third bearing portion (430) fitted over the output shaft (400) is provided in the second cavity (520) of the housing (500).
7. An output shaft structure of a harmonic reducer according to claim 6, wherein the third bearing portion (430) has a plurality, and the plurality of third bearing portions (430) are distributed along the axis of the output shaft (400).
8. The output shaft structure of the harmonic reducer according to claim 4, wherein both ends of the housing (500) are provided with end caps (530) to enclose the flexspline (100), the rigid spline (200), the wave generator (300), and the side of the output shaft (400) near the flexspline (100) within the housing (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020731336.6U CN212536584U (en) | 2020-05-07 | 2020-05-07 | Output shaft structure of harmonic reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020731336.6U CN212536584U (en) | 2020-05-07 | 2020-05-07 | Output shaft structure of harmonic reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212536584U true CN212536584U (en) | 2021-02-12 |
Family
ID=74539146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020731336.6U Expired - Fee Related CN212536584U (en) | 2020-05-07 | 2020-05-07 | Output shaft structure of harmonic reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212536584U (en) |
-
2020
- 2020-05-07 CN CN202020731336.6U patent/CN212536584U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 |