CN207609735U - Harmonic speed reducer with substrate hold-down function - Google Patents
Harmonic speed reducer with substrate hold-down function Download PDFInfo
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- CN207609735U CN207609735U CN201721830076.2U CN201721830076U CN207609735U CN 207609735 U CN207609735 U CN 207609735U CN 201721830076 U CN201721830076 U CN 201721830076U CN 207609735 U CN207609735 U CN 207609735U
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- China
- Prior art keywords
- ontology
- bushing
- wave producer
- speed reducer
- harmonic speed
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Abstract
The utility model discloses a kind of harmonic speed reducers with substrate hold-down function, including rigid wheel, compliant wheel and wave producer, the compliant wheel includes ontology, the ontology is cylindrical in shape, the ontology has nozzle end and cylinder bottom end, and the external tooth for the interior tooth engagement with rigid wheel is provided on the outer wall at the nozzle end, and wave producer is stretched to from the nozzle end in the ontology, oil groove is offered on the outer wall of the wave producer, the oil groove is for storing lubricating oil.Oil groove is offered in the outer wall of wave producer, by being passed through lubricating oil to oil groove, to provide lubrication for the rotation of wave producer, to eliminate the resistance for utilizing bearing deceleration wave producer, the mode for opening up oil groove provides lubrication compared to reducing resistance in the way of bearing, the significantly less cost of retarder.It is particularly adapted to retarder using the retarder of the lubricating oil in oil groove and does not have to long-term running operating mode.
Description
Technical field
The utility model relates to technical field of mechanical transmission more particularly to a kind of harmonic speed reducer.
Background technology
Harmonic speed reducer with very large transmission ratio because being widely used in mechanical transmission fields, in general, harmonic speed reducer packet
Include rigid wheel, compliant wheel and wave producer.Wherein, rigid wheel is actually a prodigious ring gear of rigidity；Compliant wheel is in
Tubular, and be made of the smaller material of rigidity, external tooth is formed on the outer wall at the nozzle end of compliant wheel, the nozzle end of compliant wheel is stretched into
In rigid wheel, external tooth is for the interior tooth engagement with rigid wheel；Wave producer is elliptic cylindrical shape, stretches to the nozzle of compliant wheel
End, when wave producer is driven by actuating unit and rotated, the external tooth of compliant wheel corresponding with the long axis of wave producer passes through not
The disconnected interior tooth engagement with rigid wheel and make wave producer driving compliant wheel rotation, compliant wheel drive be connected to the load of a bottom end with
So that load is executed certain goal task, e.g., drives hydraulic pump.
During the operation of harmonic speed reducer is to drive load：
1, wave producer is circumferential outside wave producer to be evenly distributed with bearing in compliant wheel rotation process, to enable wave producer
Enough smooth rotations, however, for making the bearing of wave producer costly so that the cost of retarder is just high, under some operating modes,
Retarder is not to rotate constantly, if the cost of retarder is higher so that the equipment in the unit interval generates increase.
2, the between cog engagement process institute of generated friction and compliant wheel and rigid wheel between wave producer and compliant wheel
The friction of generation can be such that the temperature of three increases, and the raising of this temperature can be such that the plasticity of three increases, that is, so that the matter of three
Ground softens, especially compliant wheel, and the plasticity of compliant wheel increases so that for the external tooth of compliant wheel in engagement, external tooth is in tangential direction
On rigidity it is poor, and due between external tooth tooth top and the internal tooth tooth root of rigid wheel have certain interval, cause load increase
When, the relative friction of the flank of tooth of external tooth and the flank of tooth generation bigger of internal tooth moves, to make the higher of temperature rise, to cause
Vicious circle, eventually leading to the wearing layer of the flank of tooth of between cog causes to destroy, and damages the flank of tooth.
Utility model content
For the above-mentioned technical problems in the prior art, the embodiments of the present invention provide a kind of with compression
The harmonic speed reducer of function.
In order to solve the above technical problems, the embodiments of the present invention the technical solution adopted is that：
A kind of harmonic speed reducer with substrate hold-down function, including rigid wheel, compliant wheel and wave producer, the compliant wheel
Including ontology, the ontology is cylindrical in shape, and the ontology has nozzle end and cylinder bottom end, is arranged on the outer wall at the nozzle end useful
In the external tooth of the interior tooth engagement with rigid wheel, wave producer is stretched to from the nozzle end in the ontology, the wave producer
Outer wall on offer oil groove, the oil groove is for storing lubricating oil.
Preferably, bushing is provided in the ontology, the bushing is stretched to from the nozzle end in the ontology, described
Wave producer stretches in the bushing, and the coefficient of expansion is provided between the bushing and the ontology and is more than the bushing and institute
The nylon jacket for stating ontology, with when the temperature of the nylon jacket increases, the nylon jacket expansion forces the radial ruler of the ontology
Very little increase is in the gap between the external tooth and the internal tooth of meshing state to reduce.
Preferably, the outer wall of the bushing is formed with limit protrusion, and the limit protrusion wears the nylon jacket and stretches into
Extremely relatively rotated between the bushing and the ontology in the ontology with limiting.
Preferably, the limit protrusion includes identical multiple with the external tooth quantity, and multiple limit protrusions are circumferential
It is uniformly distributed, and the limit protrusion is formed in the position opposite with the external tooth.
Preferably, the inner wall of the ontology position opposite with the limit protrusion offers limiting slot, the limit convex
It rises and stretches in the limiting slot, and be formed with storage tank between the limiting slot and the limit protrusion, in the storage tank
Filled with graphite.
Preferably, the one end of the bushing far from the nozzle end forms inserted terminal, and the ontology corresponds to the inserted terminal
It is formed with annular slot, the inserted terminal is inserted into the annular slot, wherein：
It is formed with ring-shaped groove, the inserted terminal position opposite with the ring-shaped groove on the cell wall of the annular slot
It is formed with annular protrusion, the annular protrusion is embedded in the ring-shaped groove.
Preferably, the bushing be located at the nozzle end one end be formed with annular postive stop baffle, the postive stop baffle
It is abutted with the end face at the nozzle end.
Compared with prior art, the advantageous effect of the harmonic speed reducer with substrate hold-down function of the utility model is：In wave
The outer wall of generator offers oil groove, by being passed through lubricating oil to oil groove, to provide lubrication for the rotation of wave producer, to
The resistance using bearing deceleration wave producer is eliminated, the mode for opening up oil groove is provided lubrication and subtracted compared in the way of bearing
Slight drag, the significantly less cost of retarder.Retarder is particularly adapted to using the retarder of the lubricating oil in oil groove not have to
Long-term running operating mode.
Description of the drawings
Fig. 1 is the main sectional view for the harmonic speed reducer with substrate hold-down function that the embodiments of the present invention provide.
Fig. 2 is the C-C of Fig. 1 to sectional view.
Fig. 3 is the enlarged view of the local A of Fig. 1.
Fig. 4 is the enlarged view of the local B of Fig. 1.
In figure：
10- ontologies；11- nozzles end；12- bottom ends；13- external tooths；14- limiting slots；15- annular slots；20- bushings；
21- limit protrusions；22- postive stop baffles；23- inserted terminals；231- annular protrusions；30- nylon jackets；40- graphite；50- rigidity
Wheel；51- internal tooths；60- wave producers；61- oil grooves.
Specific implementation mode
It is below in conjunction with the accompanying drawings and specific real to make those skilled in the art be better understood from the technical solution of the utility model
Mode is applied to elaborate to the utility model.
As depicted in figs. 1 and 2, the embodiments of the present invention provide a kind of harmonic speed reducer with substrate hold-down function,
The harmonic speed reducer with substrate hold-down function, including rigid wheel 50, compliant wheel and wave producer 60, compliant wheel include ontology
10, ontology is cylindrical in shape, and ontology has nozzle end 11 and cylinder bottom end 12, is provided on the outer wall at nozzle end 11 and is used for and rigid wheel
The external tooth 13 that 50 internal tooth 51 engages, wave producer are stretched in ontology 10 from nozzle end 11, are opened on the outer wall of wave producer 60
Equipped with oil groove 61, oil groove 61 is for storing lubricating oil.
As described above, the outer wall in wave producer 60 offers oil groove 61, by being passed through lubricating oil to oil groove 61, from
And lubrication is provided for the rotation of wave producer 60, to eliminate the resistance for utilizing bearing deceleration wave producer 60, open up oil groove
Mode provide lubrication compared to reducing resistance in the way of bearing, the significantly less cost of retarder.Using in oil groove
Lubricating oil retarder be particularly adapted to retarder do not have to long-term running operating mode.
In a preferred embodiment of the utility model, as shown in Figures 1 to 4, including ontology 10, ontology 10 are cylindrical in shape,
Bushing 20 is provided in ontology 10, bushing 20 is stretched to from nozzle end 11 in ontology 10, and wave producer 60 stretches to bushing 20
In, the nylon jacket 30 that the coefficient of expansion is more than bushing 20 and ontology 10 is provided between bushing 20 and ontology 10.
As described above, after harmonic speed reducer runs and heats up, nylon jacket 30 is expanded with the raising of temperature,
So that its radial dimension becomes larger, this certainly will generate compliant wheel the pressuring action of radial direction, and compliant wheel outer diameter is forced to become larger, from
And so that the amount for the internal tooth that external tooth 13 stretches to the rigid wheel engaged is increased, to reduce the tooth top of external tooth 13 and internal tooth with
Gap between tooth root reduces external tooth 13 with internal tooth in engagement process to increase external tooth 13 in the rigidity of tangential direction
In friction between the two, effectively limit external tooth 13 and internal tooth and continue to increase because engaging the temperature generated.
When to prevent wave producer from rotating, opposite rotation or dislocation occur between bushing 20 and ontology 10, bushing 20
Outer wall is formed with limit protrusion 21, and limit protrusion 21 wears nylon jacket 30 and stretches in ontology 10 to limit bushing 20 and ontology
It is relatively rotated between 10.Limit protrusion 21 includes identical with 13 quantity of external tooth multiple, and multiple limit protrusions 21 are circumferential uniformly distributed,
And limit protrusion 21 is formed in the position opposite with external tooth 13.Limit protrusion 21 is set to be formed in the position mesh opposite with external tooth 13
Be：Limit protrusion 21 is reduced to stretch in ontology 10 and reduce the influence (equivalent at external tooth 13 to the rigidity of ontology 10
Thickness is bigger than other positions).
In a preferred embodiment of the utility model, the position that the inner wall of ontology 10 is opposite with limit protrusion 21 opens up
There are limiting slot 14, limit protrusion 21 to stretch in limiting slot 14, and storage tank be formed between limiting slot 14 and limit protrusion 21,
Graphite 40 is filled in storage tank.In the present embodiment, during expansion, limit protrusion 21 will produce relative to limit nylon jacket 30
The movement of the cell wall of slot 14, and graphite 40 is for reducing the friction generated by the movement.
Axial movement is generated for limitation bushing 20, the one end of bushing 20 far from nozzle end 11 forms inserted terminal 23, ontology 10
Corresponding inserted terminal 23 is formed with annular slot 15, and inserted terminal 23 is inserted into annular slot 15, wherein：The cell wall of annular slot 15
On be formed with ring-shaped groove, the position opposite with ring-shaped groove of inserted terminal 23 is formed with annular protrusion 231, annular protrusion
231 are embedded in ring-shaped groove.One end that bushing 20 is located at nozzle end 11 is formed with annular postive stop baffle 23, postive stop baffle
23 abut with the end face at nozzle end 11.Postive stop baffle 23 is moved for limiting bushing 20 towards 12 direction of cylinder bottom end, and annular protrusion
Portion 231 is moved for limiting bushing 20 towards nozzle end 11.
Above example is only the exemplary embodiment of the utility model, is not used in limitation the utility model, this practicality is new
The protection domain of type is defined by the claims.Those skilled in the art can be in the essence and protection domain of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling new in this practicality
In the protection domain of type.
Claims (7)
1. a kind of harmonic speed reducer with substrate hold-down function, including rigid wheel, compliant wheel and wave producer, the compliant wheel packet
Ontology is included, the ontology is cylindrical in shape, and the ontology has nozzle end and cylinder bottom end, is provided with and is used on the outer wall at the nozzle end
With the external tooth of the interior tooth engagement of rigid wheel, wave producer is stretched to from the nozzle end in the ontology, which is characterized in that described
Oil groove is offered on the outer wall of wave producer, the oil groove is for storing lubricating oil.
2. the harmonic speed reducer according to claim 1 with substrate hold-down function, which is characterized in that be provided in the ontology
Bushing, the bushing are stretched to from the nozzle end in the ontology, and the wave producer stretches in the bushing, the lining
The nylon jacket that the coefficient of expansion is more than the bushing and the ontology is provided between set and the ontology, with when the nylon jacket
When temperature increases, the nylon jacket expansion forces the radial dimension of the ontology to increase and is in the described outer of meshing state to reduce
Gap between tooth and the internal tooth.
3. the harmonic speed reducer according to claim 2 with substrate hold-down function, which is characterized in that the outer wall shape of the bushing
At there is a limit protrusion, the limit protrusion wear the nylon jacket and stretch in the ontology with limit the bushing with it is described
It is relatively rotated between ontology.
4. the harmonic speed reducer according to claim 3 with substrate hold-down function, which is characterized in that the limit protrusion includes
Identical multiple with the external tooth quantity, multiple limit protrusions are circumferentially uniformly distributed, and the limit protrusion be formed in it is described
The opposite position of external tooth.
5. the harmonic speed reducer according to claim 4 with substrate hold-down function, which is characterized in that the inner wall of the ontology with
The opposite position of the limit protrusion offers limiting slot, and the limit protrusion stretches in the limiting slot, and the limit
It is formed with storage tank between slot and the limit protrusion, graphite is filled in the storage tank.
6. the harmonic speed reducer according to claim 2 with substrate hold-down function, which is characterized in that the bushing is far from described
The one end at nozzle end forms inserted terminal, and the ontology corresponds to the inserted terminal and is formed with annular slot, and the inserted terminal is inserted into institute
It states in annular slot, wherein：
It is formed with ring-shaped groove on the cell wall of the annular slot, the inserted terminal position opposite with the ring-shaped groove is formed
There are annular protrusion, the annular protrusion to be embedded in the ring-shaped groove.
7. the harmonic speed reducer according to claim 6 with substrate hold-down function, which is characterized in that the bushing is located at described
The one end at nozzle end is formed with the postive stop baffle of annular, and the postive stop baffle is abutted with the end face at the nozzle end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830076.2U CN207609735U (en) | 2017-12-22 | 2017-12-22 | Harmonic speed reducer with substrate hold-down function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830076.2U CN207609735U (en) | 2017-12-22 | 2017-12-22 | Harmonic speed reducer with substrate hold-down function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609735U true CN207609735U (en) | 2018-07-13 |
Family
ID=62799787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721830076.2U Expired - Fee Related CN207609735U (en) | 2017-12-22 | 2017-12-22 | Harmonic speed reducer with substrate hold-down function |
Country Status (1)
| Country | Link |
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| CN (1) | CN207609735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120619A (en) * | 2019-11-25 | 2020-05-08 | 航天科工智能机器人有限责任公司 | Harmonic gear drive wave generator and harmonic gear drive |
-
2017
- 2017-12-22 CN CN201721830076.2U patent/CN207609735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120619A (en) * | 2019-11-25 | 2020-05-08 | 航天科工智能机器人有限责任公司 | Harmonic gear drive wave generator and harmonic gear drive |
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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 |
Granted publication date: 20180713 Termination date: 20191222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |