CN210153177U - Harmonic speed reducer - Google Patents
Harmonic speed reducer Download PDFInfo
- Publication number
- CN210153177U CN210153177U CN201920949828.XU CN201920949828U CN210153177U CN 210153177 U CN210153177 U CN 210153177U CN 201920949828 U CN201920949828 U CN 201920949828U CN 210153177 U CN210153177 U CN 210153177U
- Authority
- CN
- China
- Prior art keywords
- end cover
- rotating shaft
- supporting
- rear end
- oil seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 12
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 45
- 230000007547 defect Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- General Details Of Gearings (AREA)
Abstract
The application relates to the technical field of mechanical transmission, and particularly provides a harmonic reducer, which comprises a wave generator, a flexible gear, a rigid gear, an input rotating shaft, a rear end cover, a front end cover, a rear end cover oil seal, a front end cover oil seal and the like, and is characterized by further comprising a supporting rotating shaft and a supporting sleeve, wherein the supporting rotating shaft is fixedly connected with the rigid gear; the supporting sleeve is fixedly connected with the flexible gear, the rear end cover is sealed in the inner side cavity of the rear end cover and between the rear end cover bearing and the front end cover bearing, the supporting sleeve and the supporting rotating shaft are combined and made of self-lubricating copper-based or iron-based oil-containing materials, and the supporting sleeve and the supporting rotating shaft have the function of replacing a common crossed roller bearing in the conventional harmonic reducer. The alternative scheme has the advantages of improving the rigidity and stability due to large working contact area of the supporting sleeve and the supporting rotating shaft, along with compact structure, convenient processing, long service life, material saving and cost reduction, and particularly, the fitting is easier to match during assembly.
Description
Technical Field
The application relates to the technical field of mechanical transmission, and particularly provides a harmonic reducer.
Background
The existing harmonic reducer uses a crossed roller bearing as a main bearing at the output end side of the harmonic reducer, and is combined with a reducer main body into a whole, wherein the harmonic reducer comprises a rigid gear, a flexible gear, a wave generator, end covers at two sides, oil seals at two ends and the like. However, the crossed roller bearing generally has the defects of high processing difficulty, limited processing precision, high overall cost, high difficulty in assembling related accessories and the like. Meanwhile, the end cover oil seals on the two sides are assembled on the outer sides of the end covers and the bearings, the end cover oil seals cannot be lubricated in time, resistance is high, heat is easy to generate, the service life is affected, and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the application is to provide a harmonic reducer, which comprises a wave generator, a flexible gear, a rigid gear, an input rotating shaft, a rear end cover, a front end cover, a rear end cover oil seal, a front end cover oil seal and the like, and is characterized by further comprising a supporting rotating shaft and a supporting sleeve, wherein the supporting rotating shaft is fixedly connected with the rigid gear; the supporting sleeve is fixedly connected with the flexible gear; the supporting rotating shaft and the rigid wheel are fixedly connected with the rear end cover; the supporting sleeve and the flexible gear are fixedly connected with the front end cover; the supporting rotating shaft and the supporting sleeve are connected in a movable fit manner, the inner hole of the supporting sleeve is connected with the outer diameter of the supporting rotating shaft in a movable fit manner, the inner hole of the supporting sleeve falls between the end face of the step of the outer diameter of the supporting rotating shaft and the rigid wheel, and the supporting rotating shaft, the supporting sleeve and the flexible wheel are connected in a movable fit manner; the front end cover is sealed in the front end cover inner cavity, the rear end cover is sealed in the rear end cover inner cavity, and the supporting sleeve and the supporting rotating shaft are combined and made of self-lubricating copper-based or iron-based oil-containing materials.
The support rotating shaft and the support sleeve are in movable fit connection, the movable fit connection is a contact connection with a minimum gap capable of rotating between the support rotating shaft and the support sleeve, and the movable fit connection is all the meaning of the movable fit connection described in the following of the application.
The supporting rotating shaft is provided with an outer diameter step end face and an inner hole end face, the supporting rotating shaft is further provided with a plurality of screw holes fixedly connected with the rigid wheel, the supporting sleeve is provided with an end face and an inner hole, and the supporting sleeve is provided with a plurality of screw holes fixedly connected with the flexible wheel.
The supporting rotating shaft is connected with the rigid wheel in a screw fastening mode. The rigid wheel is provided with a step end face, the step end face is provided with a plurality of threaded holes, the end face of the supporting rotating shaft is abutted and contacted with the rigid wheel, the step end face of the rigid wheel is abutted and contacted with the supporting rotating shaft, and the rigid wheel is fixed between the threaded holes in the step end face of the rigid wheel and the threaded holes in the supporting rotating shaft through screws. The end face of the inner hole of the supporting rotating shaft is connected with the outer diameter of the rigid wheel in a movable fit mode, the rigid wheel is connected with the supporting rotating shaft in a fastening mode, the step end face of the rigid wheel is in movable fit connection with the end face of the supporting sleeve, the movable fit connection relation and the end face of the supporting sleeve fall into the supporting rotating shaft together, the supporting sleeve cannot move left and right on the supporting rotating shaft, and the supporting sleeve can rotate easily. And an oil seal is arranged between the rigid wheel and the supporting sleeve in a movable fit connection relationship. The supporting sleeve and the supporting rotating shaft are combined and made of self-lubricating copper-based or iron-based oil-containing materials, and the supporting sleeve and the supporting rotating shaft can self-lubricate in operation.
The rear end cover and the front end cover of the harmonic reducer are respectively and fixedly connected with the rigid wheel and the flexible wheel, the rear end cover and the front end cover are provided with a plurality of fixing through holes, the rear end cover and the rigid wheel are fixed on the supporting rotating shaft together, the front end cover and the flexible wheel are fixed on the supporting sleeve together, and a sealing ring is arranged between the supporting sleeve and the flexible wheel. And a sealing ring is arranged between the rear end cover fixed rigid wheels, and a sealing ring is arranged between the front end cover fixed flexible wheels.
The rear end cover and the front end cover are also provided with a rear end cover oil seal and a front end cover oil seal, the rear end cover oil seal and the front end cover oil seal are arranged on two sides in the cavity of the harmonic reducer, the rear end cover oil seal is abutted between the input rotating shaft and the rear end cover, and the front end cover oil seal is abutted between the input rotating shaft and the front end cover. And a wave washer is arranged between the front end cover bearing and the front end cover.
A front end cover bearing and a rear end cover bearing are further arranged on two sides of the rear end cover oil seal and the front end cover oil seal and are arranged between the front end cover bearing and the rear end cover bearing, the front end cover bearing and the rear end cover bearing are respectively arranged on the front end cover and the rear end cover, and the rear end cover oil seal and the front end cover oil seal can effectively prevent the invasion of oil or grease in the cavity to the front end cover bearing and the rear end cover bearing, prevent the original lubricating performance and the dust-proof sealing structure of the two bearings from being damaged, and protect the front end cover bearing and the rear end cover bearing from normally working; because set up rear end housing oil blanket and front end housing oil blanket in the cavity, at the initial during operation of harmonic reduction gear, can obtain the lubrication of lubricating oil or fat to rear end housing oil blanket and front end housing oil blanket fast, thereby the frictional force of rear end housing oil blanket and front end housing oil blanket and input shaft has been reduced, it generates heat because of the friction to have reduced effectively, the life of rear end housing oil blanket and front end housing oil blanket has been prolonged, overcome simultaneously because of the defect of starting torque and the increase of working torque, make this machine operation stabilize raise the efficiency, this is the outstanding advantage of this application that rear end housing oil blanket and front end housing oil blanket are installed in the cavity.
The beneficial effect of this application still has: the supporting sleeve and the supporting rotating shaft are combined together to be equivalent to a bearing without a steel ball, so that the effect of transmission and conveying is achieved, and a common crossed roller bearing in the conventional harmonic reducer is replaced. The alternative scheme has the advantages of improving the rigidity and stability due to large working contact area of the supporting sleeve and the supporting rotating shaft, along with compact structure, convenient processing, long service life, material saving and cost reduction, and particularly, the fitting is easier to match during assembly.
Drawings
Fig. 1 is a schematic structural diagram of a harmonic reducer according to the present application.
In the drawings, the reference numbers: 1. an input shaft; 2. a wave generator; 3. a rear end cap bearing; 4. a rear end cap; 5. a rear end cover oil seal; 6, fixing screws on the rear end cover; 7. a rigid wheel; 71. a step end face; 8. oil sealing; 81. a seal ring; 9. a support shaft; 91. an outer diameter step end face; 92. end surface of the inner hole; 93. a screw hole; 10. a support sleeve; 101. an end face; 102. an inner bore; 103. a screw hole; 11. a flexible gear; 12. a front end cover fixing screw; 13. a front end cover; 14. a front end cover oil seal; 15. a wave washer; 16. and a front end cover bearing.
Detailed Description
Preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings so that the advantages and features of the application can be more readily understood by those skilled in the art, and thus the scope of the application will be more clearly and clearly defined.
In fig. 1, the harmonic reducer of the present application has a wave generator 2, a flexspline 11, a circular spline 7, an input rotating shaft 1, a rear end cap 4, a front end cap 13, a support rotating shaft 9, and a support sleeve 10.
The supporting rotating shaft 9 is fixedly connected with the rigid wheel 7; the supporting sleeve 10 is fixedly connected with the flexible gear 11; the supporting rotating shaft 9 and the rigid wheel 7 are fixedly connected with the rear end cover 4; the supporting sleeve 10 and the flexible gear 11 are fixedly connected with the front end cover 13; the supporting rotating shaft 9 and the supporting sleeve 10 are connected in a movable fit mode, and the supporting sleeve 10 and the rigid wheel 7 are connected in a movable fit mode.
The supporting rotating shaft 9 is provided with an outer diameter step end face 91 and an inner hole end face 92, the supporting rotating shaft 9 is further provided with a plurality of screw holes 93 fixedly connected with the flexible gear 11, the supporting sleeve 10 is provided with an end face 101 and an inner hole 102, and the supporting sleeve 10 is provided with a plurality of screw holes 103 fixedly connected with the flexible gear 11.
The inner hole 102 of the supporting sleeve 10 is in movable fit connection with the outer diameter of the supporting rotating shaft 9, and the inner hole 102 of the supporting sleeve 10 falls between the stepped end surface 91 of the outer diameter of the supporting rotating shaft 9 and the rigid wheel 7. An oil seal 8 is arranged between the supporting sleeve 10 and the rigid wheel 7.
The supporting rotating shaft 9 is connected with the rigid wheel 7 in a screw fastening mode. The rigid wheel 7 is provided with a step end face 71, the step end face 71 is provided with a plurality of threaded holes, the end face of the supporting rotating shaft 9 is in abutting contact with the rigid wheel 7, the step end face 71 of the rigid wheel 7 is in abutting contact with the supporting rotating shaft 9, and the rigid wheel 7 is fixed between the threaded holes of the step end face 71 of the rigid wheel 7 and the threaded holes 93 of the supporting rotating shaft 9 through screws. The inner hole end surface 92 of the supporting rotating shaft 9 is movably matched and connected with the outer diameter of the rigid wheel 7, the rigid wheel 7 is fixedly connected with the supporting rotating shaft 9, the rigid wheel 7 and the supporting sleeve 10 have a movable matching and connecting relationship, and the relationship and the falling of the end surface 101 of the supporting sleeve 10 into the supporting rotating shaft 9 together enable the supporting sleeve 10 not to move left and right on the supporting rotating shaft 9, and realize easy rotation. The supporting sleeve 10 and the supporting rotating shaft 9 are made of self-lubricating copper-based or iron-based oil-containing materials, and the supporting sleeve 10 and the supporting rotating shaft 9 can self-lubricate in operation.
The utility model provides a rear end housing 4 and front end housing 13 of harmonic speed reducer ware respectively with rigid wheel 7 and flexbile gear 11 fixed connection, foretell rear end housing 4 and front end housing 13 have a plurality of fixed through hole, foretell rear end housing 4 fixes on supporting pivot 9 together with rigid wheel 7, front end housing 13 fixes on supporting sleeve 10 together with flexbile gear 11, is provided with sealing washer 81 between above-mentioned supporting sleeve 10 and the flexbile gear 11, be provided with sealing washer 81 between the fixed rigid wheel 7 of rear end housing 4, front end housing 13 fix and be provided with sealing washer 81 between the flexbile gear 11.
The rear end cover 4 and the front end cover 13 are also provided with a rear end cover oil seal 5 and a front end cover oil seal 14 which are arranged between the front end cover bearing 16 and the rear end cover bearing 3, the rear end cover oil seal 5 and the front end cover oil seal 14 are arranged on two sides in the cavity of the harmonic reducer, the rear end cover oil seal 5 is abutted between the input rotating shaft 1 and the rear end cover 4, and the front end cover oil seal 14 is abutted between the input rotating shaft 1 and the front end cover 13.
The front end cover bearing 16 and the rear end cover bearing 3 are arranged on two sides of the rear end cover oil seal 5 and the front end cover oil seal 14 respectively, the front end cover bearing 16 and the rear end cover bearing 3 are arranged on the front end cover 13 and the rear end cover 4 respectively, and the rear end cover oil seal 5 and the front end cover oil seal 14 can effectively prevent invasion of oil or grease in a cavity to the front end cover bearing 16 and the rear end cover bearing 3, so that the original lubricating performance and the dust-proof sealing structure of the two bearings are prevented from being damaged, and the front end cover bearing 16 and the rear end cover bearing 3 are protected from working normally. A wave washer 15 is arranged between the front end cover bearing 16 and the front end cover 13.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (9)
1. A harmonic reducer comprises a wave generator, a flexible gear, a rigid gear, an input rotating shaft, a rear end cover, a front end cover, a rear end cover oil seal, a front end cover oil seal and the like, and is characterized by further comprising a supporting rotating shaft and a supporting sleeve, wherein the supporting rotating shaft is fixedly connected with the rigid gear; the supporting sleeve is fixedly connected with the flexible gear; the supporting rotating shaft and the rigid wheel are fixedly connected with the rear end cover; the supporting sleeve and the flexible gear are fixedly connected with the front end cover; the supporting rotating shaft and the supporting sleeve are connected in a movable fit manner, the inner hole of the supporting sleeve is connected with the outer diameter of the supporting rotating shaft in a movable fit manner, the inner hole of the supporting sleeve falls between the end face of the step of the outer diameter of the supporting rotating shaft and the rigid wheel, and the supporting rotating shaft, the supporting sleeve and the rigid wheel are connected in a movable fit manner; the front end cover oil seal is arranged in the cavity of the inner side of the front end cover and between the front end cover bearing and the rear end cover bearing, and the rear end cover oil seal is arranged in the cavity of the inner side of the rear end cover.
2. A harmonic reducer according to claim 1 wherein said support shaft has an outer diameter step end and an inner bore end, said support shaft further having a plurality of threaded bores fixedly connected to a rigid wheel, said support sleeve having an end and an inner bore, said support sleeve having a plurality of threaded bores fixedly connected to a flexible wheel, said rigid wheel having a step end, said step end having a plurality of threaded bores, said rigid wheel having a step end.
3. A harmonic reducer according to claim 1 or 2 wherein the support shaft is screwed to the ring gear, the end face of the support shaft is in abutting contact with the ring gear, the step end face of the ring gear is in abutting contact with the support shaft, and the step end face of the ring gear is screwed between the threaded hole in the step end face of the ring gear and the threaded hole in the support shaft.
4. A harmonic reducer according to claim 1 in which the ring gear is rigidly connected to the support shaft, the ring gear end face being in a snap fit relationship with the end face of the support sleeve, the relationship being such that the end face of the support sleeve falls into the support shaft.
5. The harmonic reducer according to claim 1 wherein an oil seal is disposed between the rigid wheel and the support sleeve in a movable fit connection.
6. The harmonic reducer according to claim 1, wherein the rear cover and the front cover are fixedly connected to the rigid gear and the flexible gear, respectively, the rear cover and the front cover have a plurality of fixing through holes, the rear cover is fixed to the supporting shaft together with the rigid gear, the front cover is fixed to the supporting sleeve together with the flexible gear, a sealing ring is disposed between the supporting sleeve and the flexible gear, a sealing ring is disposed between the rear cover and the rigid gear, and a sealing ring is disposed between the front cover and the flexible gear.
7. The harmonic reducer according to claim 1, wherein a rear end cover oil seal and a front end cover oil seal are further provided on the rear end cover and the front end cover and are disposed between the front end cover bearing and the rear end cover bearing, the rear end cover oil seal and the front end cover oil seal are disposed on two sides in a cavity of the harmonic reducer, the rear end cover oil seal abuts against between the input rotating shaft and the rear end cover, and the front end cover oil seal abuts against between the input rotating shaft and the front end cover.
8. A harmonic reducer according to claim 1 in which a wave washer is mounted between the front end bearing and the front end cap.
9. A harmonic reducer according to claim 1 wherein the bearing sleeve and the bearing shaft are made of a self-lubricating copper-based or iron-based oil-containing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949828.XU CN210153177U (en) | 2019-06-24 | 2019-06-24 | Harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920949828.XU CN210153177U (en) | 2019-06-24 | 2019-06-24 | Harmonic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210153177U true CN210153177U (en) | 2020-03-17 |
Family
ID=69763884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920949828.XU Expired - Fee Related CN210153177U (en) | 2019-06-24 | 2019-06-24 | Harmonic speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210153177U (en) |
-
2019
- 2019-06-24 CN CN201920949828.XU patent/CN210153177U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101245856B (en) | Bearing sealing device | |
| CN204736023U (en) | A multistage protective structure for digit control machine tool unit head | |
| CN209762202U (en) | Wind power pitch-variable gearbox with dustproof sealing structure | |
| CN108561521B (en) | Lubrication structure of screw rod device | |
| CN210265753U (en) | Harmonic speed reducer | |
| CN210153177U (en) | Harmonic speed reducer | |
| CN203926773U (en) | One can auto-compensation associated sealing arrangement for bearings | |
| CN100387871C (en) | Device for sealing a space | |
| CN105387072B (en) | A kind of structure of the alternative rolling bearing of hydraulic motor | |
| CN210344191U (en) | Cylindrical auxiliary guide rail | |
| GB876695A (en) | Improvements in or relating to shaft bearing assemblies | |
| KR20230104933A (en) | bearings and seals | |
| US3044278A (en) | Protection device for shafts | |
| CN205225922U (en) | Optimize structure of hydraulic motor supporting mode | |
| CN207064309U (en) | A kind of centrifugal pump is from prefastening grease lubrication bearing structure | |
| CN208268244U (en) | A kind of biserial oblique circular cylinder roller bearing universal joint | |
| US4363491A (en) | Shaft seal assembly | |
| CN217002729U (en) | Low-torque driving shaft bearing sealing ring | |
| CN112065970A (en) | Angle grinder gear box sealing structure lubricated by lubricating oil and angle grinder | |
| CN106594770B (en) | The sealed inner guide pulley system of submerged slag conveyor bearing built-in machines | |
| CN201116535Y (en) | Bearing dynamic sealing structure for single-stage single-sucking centrifugal pump | |
| CN221723403U (en) | Oil seal with double-layer sealing structure | |
| CN110821954A (en) | Motorcycle axle sleeve of reducible friction | |
| CN215861745U (en) | Mechanical sealing device replacing framework oil seal | |
| CN212177675U (en) | Bushing |
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: 20200317 |