CN208331143U - A kind of annular harmonic speed reducer - Google Patents
A kind of annular harmonic speed reducer Download PDFInfo
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- CN208331143U CN208331143U CN201820834289.0U CN201820834289U CN208331143U CN 208331143 U CN208331143 U CN 208331143U CN 201820834289 U CN201820834289 U CN 201820834289U CN 208331143 U CN208331143 U CN 208331143U
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Abstract
The utility model belongs to harmonic speed reducer technical field, more particularly to a kind of annular harmonic speed reducer, including shell, firm gear is provided in the shell, the flexbile gear of annular and the harmonic oscillator of ellipse, the firm gear is connected and fixed with the shell, the firm gear is engaged with the flexbile gear and the bus of the firm gear is parallel with the bus of the flexbile gear, the harmonic oscillator is located in the flexbile gear and the inner sidewall transition fit with the flexbile gear, the harmonic oscillator key connection has input shaft, the flexbile gear has also meshed with output firm gear, the output firm gear is connected with output shaft by straight pin, the output shaft and the input shaft are coaxially disposed；The annular harmonic speed reducer of the utility model is simple and reasonable, and the bus of flexbile gear is parallel with the bus of the firm gear and the output bus of firm gear, and control harmonic oscillator engages flexbile gear with the bus of steel wheel output firm gear depth simultaneously, can effectively control return difference.
Description
Technical field
The utility model belongs to retarder technical field, and in particular to a kind of annular harmonic speed reducer.
Background technique
The annular harmonic speed reducer of the prior art, firm gear is low with the concentricity of flexbile gear, and the axial direction of flexbile gear changes frequent occurrence
Make that the transmission return difference of annular harmonic speed reducer is big, bearing capacity is low and be easy to keep flexbile gear impaired, influences annular harmonic speed reducer
Service life.
A kind of ultrashort type harmonic speed reducer in the prior art includes wave producer, flexbile gear, foreign steamer；The flexbile gear includes
Flexbile gear ontology, flexbile gear annulus；The flexbile gear ontology is substantially in the form of annular discs, and the outside of the flexbile gear ontology is peripherally disposed to be had
U shape portion；The flexbile gear annulus is concentrically disposed on the excircle of flexbile gear ontology；It is provided on the excircle of the flexbile gear annulus
First tooth；The foreign steamer, the foreign steamer are in be arranged at annular shape；The second tooth is provided on the inner periphery of the foreign steamer；The wave
Generator is located on the inner periphery of flexbile gear annulus；The excircle of the flexbile gear annulus is located on the inner periphery of foreign steamer, and described first
Tooth and the second tooth are intermeshed；The foreign steamer is deformed with flexbile gear annulus；Flexbile gear ontology described in the present invention program is substantially in
Discoid, the outside of the flexbile gear ontology is peripherally disposed u shape portion；It is not difficult to find that the ultrashort type of the prior art is humorous
The bearing capacity for the flexbile gear that wave slows down is poor, easily receives the normal use of damage influence retarder using rear flexbile gear for a long time.
Utility model content
In order to solve the above problems existing in the present technology, the utility model provides a kind of annular harmonic speed reducer, needle
The annular harmonic speed reducer return difference of the prior art is researched and developed greatly, with simple and reasonable, transmission return difference is small, flexbile gear is axially solid
The advantages that determining.
The utility model implements by the following technical programs:
This is practical to provide a kind of annular harmonic speed reducer, including shell, be provided in the shell firm gear, annular it is soft
The harmonic oscillator of wheel and ellipse, the firm gear are connected and fixed with the shell, and the firm gear is engaged with the flexbile gear and institute
The bus for stating firm gear is parallel with the bus of the flexbile gear, the harmonic oscillator be located in the flexbile gear and in the flexbile gear
Side wall transition cooperation.
Further, the harmonic oscillator key connection has input shaft, and the flexbile gear has also meshed with output firm gear, described soft
The bus of wheel is parallel with the output bus of firm gear, and the output firm gear is connected with output shaft, the output by straight pin
Axis and the input shaft are coaxially disposed.
The firm gear is provided with internal tooth, and the flexbile gear is provided with external tooth, and the harmonic oscillator is matched with the flexbile gear transition
Make the flexbile gear oval when conjunction, the longitudinal end of the flexbile gear and the interior tooth engagement of external tooth and firm gear.The flexbile gear is also simultaneously
It is engaged with output firm gear, the bus of flexbile gear is parallel with the bus of the firm gear and the output bus of firm gear, and harmonic oscillator exists
Input shaft is rotated by, and controls the size of harmonic oscillator long axis, engages flexbile gear with firm gear and output firm gear depth,
The return difference for reducing annular harmonic speed reducer effectively improves the torsion stiffness and bearing capacity of annular harmonic speed reducer.
It further, further include end cap, the end cap is connected and fixed by bolt and the shell, easy for installation, disassembly
Maintenance is easy.
First bearing is provided in the end cap, the first bearing is set on the input shaft, and the input shaft is logical
The first bearing is crossed to be rotatably assorted with the end cap.
Further, the first washer is also arranged on the input shaft, first washer is located at the harmonic oscillator
Between the first bearing.
Further, the first retaining ring there are two being also arranged on the input shaft, the harmonic oscillator and the first axle
It holds and is located between two the first retaining rings.
Further, two the first retaining rings and input shaft interference fit play limit to first bearing and harmonic oscillator
Effect.
It further, further include input shaft bearing lid, the input shaft bearing lid is connect by the first screw with the end cap solid
It is fixed.
The first sealing ring being located on input shaft is also embedded in the input shaft bearing lid.First sealing ring plays close
Dustproof effect is sealed, impurity is avoided to enter in shell the normal use for influencing annular harmonic speed reducer, extends annular harmonic reduction
The service life of device.
As preferably selecting, first sealing ring is structural member made of rubber material.
Further, second bearing is additionally provided in the shell, the second bearing is set on the output shaft, defeated
Shaft is cooperated by second bearing and the housing into rotation.
Further, the quantity of the second bearing is two, and two bearings can prevent output shaft from beating axial direction
Variation makes output shaft stability of rotation.
Further, the second retaining ring is also embedded in the shell, second retaining ring is located between two second bearings.
It further, further include output bearing cap, the output bearing cap is connect by the second screw with the shell solid
It is fixed, the second sealing ring being set on output shaft is additionally provided in the output bearing cap.
Further, second sealing ring is structural member made of rubber material.
Further, be also arranged with third retaining ring on the output shaft, the third retaining ring be located at the second bearing with
Between the output bearing cap.
Further, it is additionally provided with input keyway on the input shaft, output keyway is additionally provided on the output shaft.
Based on above technical scheme, the technical effect of the utility model are as follows:
The flexbile gear of the annular harmonic speed reducer of the utility model is engaged with firm gear and output firm gear simultaneously, the flexbile gear, rigid
Wheel with output the bus of firm gear three it is parallel, control harmonic device generator size, make flexbile gear simultaneously with firm gear and export firm gear
Depth engagement improves the transmission accuracy that annular harmonic reduction rises, enhances the torsion stiffness of annular harmonic speed reducer, improve
Bearing capacity.
Based on above-mentioned technical solution, technical effect are as follows:
The first, the quantity of the described second bearing is two, guarantees the steady of the second bearing rotation, prevents output shaft from jumping
It is dynamic；
The second, it is embedded with 3rd bearing in the described output shaft, ensure that coaxial precision of the input shaft with the output shaft；
Third, the first bearing and the 3rd bearing collective effect make the input shaft stability of rotation, prevent from inputting
Axis bounce.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the cross-sectional view of the annular harmonic speed reducer of the utility model embodiment.
In figure:
1- shell；2- firm gear；3- flexbile gear；4- harmonic oscillator；5- input shaft, 51- input keyway；6- exports firm gear；7-
Straight pin；8- output shaft, 81- export keyway；9- end cap；10- bolt, 11- first bearing；The first washer of 12-；13- first gear
Circle；14- input shaft bearing lid；The first screw of 15-；The first sealing ring of 16-；17- second bearing；The second retaining ring of 18-；19- output shaft
Hold lid；The second screw of 20-；The second sealing ring of 21-；22- third retaining ring；23- 3rd bearing.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Front, back, left, right, up appeared in the utility model and inferior orientation concept are with attached ring demonstrated in Figure 1
Subject to the corresponding front, back, left, right, up of shape harmonic speed reducer and inferior orientation concept.Specifically, with attached ring demonstrated in Figure 1
The left side of shape harmonic speed reducer is that left and right side is the right side, before the annular harmonic speed reducer with displaying is far from one end of paper, with institute
The annular harmonic speed reducer of displaying go deep into paper one end be after；With the top of the annular harmonic speed reducer shown be it is upper, with
Under the lower section of the annular harmonic speed reducer shown is.
Embodiment:
As shown in Figure 1, a kind of annular harmonic speed reducer, including shell 1 are present embodiments provided, setting in the shell 1
There is the harmonic oscillator 4 of firm gear 2, the flexbile gear 3 of annular and ellipse.The firm gear 2 is connected and fixed with the shell 1, described rigid
Wheel 2 is engaged with the flexbile gear 3 and the bus of the firm gear 2 is parallel with the bus of the flexbile gear 3, and the harmonic oscillator 4 is located at
In the flexbile gear 3 and the inner sidewall transition fit with the flexbile gear 3, specifically, the harmonic oscillator 4 includes cam and is arranged
Flexible bearing on cam, the harmonic oscillator 4 pass through the flexible bearing and 3 transition fit of flexbile gear.
The key connection of harmonic oscillator 4 has input shaft 5, and the flexbile gear 3 has also meshed with output firm gear 6, the flexbile gear 3
Bus is parallel with the output bus of firm gear 6, and the output firm gear 6 is connected with output shaft 8, the output by straight pin 7
Axis 8 and the input shaft 5 are coaxially disposed.
For the annular harmonic speed reducer of the present embodiment when specifically used, the firm gear 2 is provided with internal tooth, and the flexbile gear 3 is set
It is equipped with external tooth, makes the flexbile gear 3 oval when the harmonic oscillator 4 is with 3 transition fit of flexbile gear, the flexbile gear 3
The interior tooth engagement of longitudinal end and external tooth and firm gear 2.The flexbile gear 3 is gone back while being engaged with output firm gear 6, the bus of flexbile gear 3 and institute
The bus of the bus and output firm gear 6 of stating firm gear 2 is parallel, and harmonic oscillator 4 is rotated by input shaft 5, is controlled humorous
The size of 4 long axis of wave producer engages flexbile gear 3 with firm gear 2 and output 6 depth of firm gear, reduces annular harmonic speed reducer
Return difference, effectively improve the torsion stiffness and bearing capacity of annular harmonic speed reducer.
It further include end cap 9 as further improvement of this embodiment, the end cap 9 is connected by bolt 10 and the shell 1
Fixation is connect, further, the end cap 9, firm gear 2 and shell 1 are connected and fixed by bolt 19, and easy for installation, disassembly maintenance is held
Easily.
First bearing 11 is provided in the end cap 9, the first bearing 11 is set on the input shaft 5, described defeated
Enter axis 5 to be rotatably assorted by first bearing 11 with end cap 9.
The first washer 12 is also arranged on the input shaft 5, first washer 12 is located at the harmonic oscillator 4 and institute
It states between first bearing 11.
First retaining ring 13 there are two being also arranged on the input shaft 5, the harmonic oscillator 4 and the first bearing 11
Between two the first retaining rings 13.
Preferably, two the first retaining rings 13 play first bearing 11 and harmonic oscillator 4 with the input shaft 5 interference fit
To position-limiting action.
It further include input shaft bearing lid 14, the input shaft bearing lid 14 is connected and fixed by the first screw 15 with the end cap 9.
Input keyway 51 is provided on the input shaft 5, the input keyway 51 is located at outside the input shaft bearing lid 14.
As further improvement of this embodiment, be located on input shaft 5 is also embedded in the input shaft bearing lid 14
One sealing ring 16.
First sealing ring 16 plays the role of sealing and dustproof, avoids impurity from entering the annular harmonic wave of influence in shell 1 and subtracts
The normal use of fast device extends the service life of annular harmonic speed reducer.
Second bearing 17 is additionally provided in the shell 1, the second bearing 17 is set on the output shaft 8.It is described
Output shaft 8 is rotatably assorted by second bearing 17 with the shell 1.
As further improvement of this embodiment, the quantity of the second bearing 17 is two, and two bearings 17 can be to prevent
Only output shaft 8, which beats axially to change, makes 8 stability of rotation of output shaft.
As further improvement of this embodiment, the second retaining ring 18, second retaining ring 18 are also embedded in the shell 1
Between two second bearings 17.As preferably selecting, second retaining ring 18 is interference fitted with the shell 1.
It further include output bearing cap 19, the output bearing cap 19 is connected and fixed by the second screw 20 with the shell 1,
The second sealing ring 21 being set on output shaft 8 is additionally provided in the output bearing cap 19.
Output keyway 81 is additionally provided on the output shaft 8, the input keyway 81 is located at outside the output bearing cap 19.
As further improvement of this embodiment, first sealing ring 16 and the second sealing ring 21 are rubber material system
At structural member.
Third retaining ring 22 is also arranged on the output shaft 8, the third retaining ring 22 is located at the second bearing 17 and institute
It states between output bearing cap 19.The third retaining ring 22 plays position-limiting action to the second bearing 17.
Make soft as further improvement of this embodiment for the coaxial accuracy for guaranteeing the input shaft 5 and input shaft 8
The axial restraint of wheel 3, further includes 3rd bearing 23, and the 3rd bearing 23 is embedded in the output shaft 8 towards the one of input shaft 5
End, the 3rd bearing 23 are set on the input shaft 5 and are rotatably assorted with the input shaft 5.
As further improvement of this embodiment, first sealing ring 16 and the second sealing ring 21 are rubber material system
At structural member.
In conclusion the technical effect of the present embodiment are as follows:
The first, the flexbile gear 3 of the annular harmonic speed reducer of the present embodiment is engaged with firm gear 2 and output firm gear 6 simultaneously, described soft
Wheel 3, firm gear 2 with output the bus of 6 three of firm gear it is parallel, control harmonic device generator 4 size, make flexbile gear 3 simultaneously with firm gear 2
With output 6 depth of firm gear engagement, the transmission accuracy that annular harmonic reduction rises is improved, the torsion of annular harmonic speed reducer is enhanced
Rigidity improves bearing capacity.
The second, the quantity of the described second bearing 17 is two, guarantees 8 stability of rotation of output shaft, prevents output shaft 8 from jumping
It is dynamic；
It is embedded with 3rd bearing in third, the output shaft 8, ensure that the coaxial essence of input shaft 5 with the output shaft 8
Degree；
4th, the first bearing 11 and 23 collective effect of 3rd bearing make the input shaft stability of rotation, prevent
Input shaft bounce.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820834289.0U CN208331143U (en) | 2018-05-31 | 2018-05-31 | A kind of annular harmonic speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820834289.0U CN208331143U (en) | 2018-05-31 | 2018-05-31 | A kind of annular harmonic speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331143U true CN208331143U (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820834289.0U Active CN208331143U (en) | 2018-05-31 | 2018-05-31 | A kind of annular harmonic speed reducer |
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| Country | Link |
|---|---|
| CN (1) | CN208331143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159727A (en) * | 2019-06-19 | 2019-08-23 | 廊坊市钦纵传动科技有限公司 | Economical frictional harmonic speed reducer |
-
2018
- 2018-05-31 CN CN201820834289.0U patent/CN208331143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159727A (en) * | 2019-06-19 | 2019-08-23 | 廊坊市钦纵传动科技有限公司 | Economical frictional harmonic speed reducer |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 065000 Hebei Province, Langfang City, Gu'an County, Gu'an High-tech Industrial Park, East Street No. 16 Patentee after: Langfang Zhida Hangyi Technology Co., Ltd. Country or region after: China Address before: 065000 Hebei Province, Langfang City, Anci District, Longhe High-tech Industrial Development Zone, Rixin Road No. 29, Science and Technology Achievement Incubation Park, Building No. 13, first and second floors Patentee before: LANGFANG QIN ZONG TRANSMISSION TECHNOLOGY Co.,Ltd. Country or region before: China |