CN207598855U - Flexbile gear and harmonic speed changer - Google Patents
Flexbile gear and harmonic speed changer Download PDFInfo
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- CN207598855U CN207598855U CN201721807551.4U CN201721807551U CN207598855U CN 207598855 U CN207598855 U CN 207598855U CN 201721807551 U CN201721807551 U CN 201721807551U CN 207598855 U CN207598855 U CN 207598855U
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- connector
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- flexbile gear
- bottom end
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Abstract
The utility model discloses a kind of flexbile gear and harmonic speed changers.The flexbile gear includes ontology, the first connector and the second connector, second connector is towards being provided with multiple pillars on the end face of one end of cylinder bottom end, first connector is pierced by the end face of one end of bottom end offers multiple guide grooves axially inwards, and the depth in the axial direction of each guide groove is more than the length of each pillar, multiple pillars are axially inserted into multiple guide grooves；The difference of the depth of guide groove and the length of pillar is more than the axial movement value of the input shaft of load.Since the difference of the length of the depth and pillar of guide groove is more than the axial movement value of the input shaft of load, so that input shaft is in axial float, pillar will not impact the slot bottom of guide groove, so as to which serious impact will not be caused to the first connector, so as to which the axial float of input shaft will not be made all to pass to flexbile gear, axial movement of the external tooth relative to internal tooth is effectively prevented, reduces abrasion between the two, improves transmission efficiency.
Description
Technical field
The utility model relates to the flexbile gear of technical field of mechanical transmission more particularly to a kind of harmonic speed changer and has and is somebody's turn to do
The harmonic speed changer of flexbile gear.
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 firm gear, flexbile gear and wave producer.Wherein, firm gear is actually a very big ring gear of rigidity；Flexbile gear is cylindrical in shape, and by
The smaller material of rigidity is made, and external tooth is formed on the outer wall at the nozzle end of flexbile gear, the nozzle end of flexbile gear is stretched into firm gear, external tooth
For the interior tooth engagement with firm gear；Wave producer is elliptic cylindrical shape, stretches to the nozzle end of flexbile gear, when wave producer is by power
When mechanism drives and rotates, the external tooth of flexbile gear corresponding with the long axis of wave producer constantly with the interior tooth engagement of firm gear by making
Wave producer driving flexbile gear rotation, flexbile gear drive is connected to the load of a bottom end so that certain goal task of load execution, e.g., drives
Hydrodynamic press pump.
Applicant has found that the flexbile gear of harmonic speed reducer of the prior art at least has during harmonic speed reducer is used
It has a disadvantage that：
The input shaft of load being connect with the cylinder bottom end of flexbile gear is frequently present of axial float, and load of the prior art
Input shaft and cylinder bottom end are by the rigid connection of ring flange, so as to which the axial float for making input shaft passes to flexbile gear, and is transferred to
The nozzle end of flexbile gear, this causes the external tooth of flexbile gear to produce axial movement relative to the internal tooth of firm gear, increases external tooth with engaging
Friction, reduce transmission efficiency, the abrasion between the two of quickening.
Utility model content
For the above-mentioned technical problems in the prior art, the embodiment of the utility model provides a kind of flexbile gear and humorous
Wave deceleration device.
In order to solve the above technical problems, the embodiment of the utility model the technical solution adopted is that：
A kind of flexbile gear, including ontology, the ontology is cylindrical in shape, and the ontology has nozzle end and cylinder bottom end, the nozzle
It is provided on the outer wall at end for the external tooth of the interior tooth engagement with firm gear, through-hole is offered in the middle part of the cylinder bottom end, it is described soft
Wheel further includes the first connector and the second connector for the input axis connection with load；First connector is set to
It is fixedly connected in the ontology and with the ontology, and one end of first connector towards the cylinder bottom end passes through described lead to
Hole and the end face for protruding from the cylinder bottom end；Second connector be located at described it is external and with the end face phase of the cylinder bottom end
To setting, wherein：
Second connector is vertical with the end face multiple convex towards being provided on the end face of one end of the cylinder bottom end
Column, multiple pillars are circumferentially uniformly distributed, and first connector is pierced by the end face of one end of the cylinder bottom end and opens axially inwards
Equipped with multiple guide grooves, multiple guide grooves are circumferentially uniformly distributed, and the depth in the axial direction of each guide groove is more than each
The length of the pillar, multiple pillars are axially inserted into multiple guide grooves correspondingly；
The difference of the depth of the guide groove and the length of the pillar is more than the axial movement value of the input shaft of the load.
Preferably, first connector, which is pierced by the middle part of the end face of one end of the cylinder bottom end, offers column chamber, institute
It states the second connector and stretches to described towards piston core, the piston core is formed in the middle part of the end face of one end of the cylinder bottom end
Column chamber can simultaneously be moved axially along the column chamber, and the cavity wall of the piston core and the column chamber is sealed by sealing ring,
Wherein：
First connector is internally provided with the first check valve and the second check valve；The import of first check valve with
The column chamber connection, the outlet of first check valve is through the end of the one end of first connector far from the cylinder bottom end
Face；The outlet of second check valve is connected with the column chamber, and the import of second check valve is through the described first connection
The end face of the one end of body far from the cylinder bottom end.
Preferably, be provided with spring between the bottom of chamber of the column chamber and the piston core, the bottom of chamber of the column chamber with
The coefficient of elasticity of spring between the piston core is less than the coefficient of elasticity of the spring in first check valve.
Preferably, first connector is formed with mounting surface, and the mounting surface is attached at the inner end of the cylinder bottom end
Face, first connector are fixedly connected with the cylinder bottom end by wearing the fastener of the two.
Preferably, it is also set up on second connector for the mounting hole of the output axis connection with the load.
Preferably, one layer of wearing layer is also wrapped on the cylinder of the pillar.
The invention also discloses a kind of harmonic speed changers, including firm gear, wave producer, the harmonic speed changer
Further include above-mentioned flexbile gear.
Compared with prior art, the flexbile gear of the utility model and the advantageous effect of harmonic speed changer are：Due to guide groove
Depth and pillar length difference be more than load input shaft axial movement value so that input shaft is convex in axial float
Column will not impact the slot bottom of guide groove, so as to cause serious impact to the first connector, so as to make input shaft
Axial float all passes to flexbile gear, effectively prevents axial movement of the external tooth relative to internal tooth, reduces mill between the two
Damage, improves transmission efficiency.
Description of the drawings
Fig. 1 is the structure diagram of flexbile gear that the embodiment of the utility model provides.
Fig. 2 is the A-A direction views of Fig. 1.
Fig. 3 is the B-B direction view of Fig. 1.
In figure：
10- ontologies；11- nozzles end；12- bottom ends；13- external tooths；The first connectors of 20-；21- guide grooves；22- columns
Chamber；The first check valves of 23-；The second check valves of 24-；The second connectors of 30-；31- pillars；311- wearing layers；32- piston cores；33-
Mounting hole；40- sealing rings；50- springs.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real for those skilled in the art is made to be better understood from the technical solution of the utility model
Mode is applied to elaborate to the utility model.
As shown in Figures 1 to 3, the embodiment of the utility model provides a kind of flexbile gear, which connects including ontology 10, first
20 and second connector 30 of junctor.Ontology 10 is cylindrical in shape, and ontology 10 has nozzle end 11 and a cylinder bottom end 12, nozzle end 11 it is outer
It is provided on wall for the external tooth 13 of the interior tooth engagement with firm gear, the middle part of cylinder bottom end 12 offers through-hole；First connector 20
It is set in ontology 10 and is fixedly connected with ontology 10, and one end of the first connector 20 towards cylinder bottom end 12 passes through through-hole and convex
For the end face of cylinder bottom end 12；Second connector 30 is located at ontology 10 for the input axis connection with load, the second connector 30
It is oppositely arranged outside and with the end face of cylinder bottom end 12, wherein：Second connector 30 is towards setting on the end face of one end of cylinder bottom end 12
There are the multiple pillars 31 vertical with the end face, multiple pillars 31 are circumferential uniformly distributed, and the first connector 20 is pierced by one end of a bottom end 12
End face on offer multiple guide grooves 21 axially inwards, multiple guide grooves 21 are circumferential uniformly distributed, and the axial direction of each guide groove 21
On depth be more than the length of each pillar 31, multiple pillars 31 are axially inserted into multiple guide grooves 21 correspondingly；Guide groove
The difference of 21 depth and the length of pillar 31 is more than the axial movement value of the input shaft of load.
As described above, when the wave producer rotation in the nozzle end 11 for stretching into flexbile gear drives the nozzle end of ontology 10
When external tooth 13 on 11 outer wall constantly engages with the internal tooth of firm gear and rotates flexbile gear, input shaft rotation of the flexbile gear with dynamic load
It is dynamic, while input shaft rotates when axial float occurs, since the difference of the length of the depth and pillar 31 of guide groove 21 is more than
The axial movement value of the input shaft of load so that for input shaft in axial float, pillar 31 will not impact the slot of guide groove 21
Bottom, so that serious impact will not be caused to the first connector 20, so as to the axial float that will not make input shaft all pass to it is soft
Wheel, effectively prevents axial movement of the external tooth 13 relative to internal tooth, reduces abrasion between the two, improve transmission efficiency.
In a preferred embodiment of the utility model, as shown in Figure 1, the first connector 20 is pierced by the one of a bottom end 12
Offer column chamber 22 in the middle part of the end face at end, the second connector 30 is towards being formed in the middle part of the end face of one end of cylinder bottom end 12
Piston core 32, piston core 32 stretch to column chamber 22 and can be moved axially along column chamber 22, piston core 32 and column chamber 22
Cavity wall is sealed by sealing ring 40, wherein：First connector 20 is internally provided with the first check valve 23 and the second check valve 24；The
The import of one check valve 23 is connected with column chamber 22, and the outlet of the first check valve 23 is through 20 separate bottom end 12 of the first connector
One end end face；The outlet of second check valve 24 is connected with column chamber 22, and the import of the second check valve 24 is through the first connection
The end face of the one end of body 20 far from bottom end 12.
As described above, when the axial float of input shaft is when being moved towards flexbile gear direction, piston core 32 is towards nozzle end
11 move and the first check valve 23 are forced to be opened, so as to mitigate impact of the input shaft to the first connector 20 and flexbile gear, when
When the axial float of input shaft is towards far from the movement of flexbile gear direction, piston core 32 moves towards cylinder bottom end 12 and forces the second check valve
24 open, so as to mitigate impact of the input shaft to load inner components, for example, the impact to the gear inside load.This
Utility model is by setting the first check valve 23, the second check valve 24 to mitigate input shaft axial float and born to flexbile gear and certainly
The impact of load so that transmission process more smoothes out.
In a preferred embodiment of the utility model, bullet is provided between the bottom of chamber of column chamber 22 and piston core 32
Spring, the coefficient of elasticity of the spring 50 between the bottom of chamber of column chamber 22 and piston core 32 are less than the bullet of the spring in the first check valve 23
Property coefficient.In this way, when axial float occurs for input shaft, pass through the spring between the bottom of chamber of column chamber 22 and piston core 32 first
50, into row buffering, when the decrement of the spring between the bottom of chamber of column chamber 22 and piston core 32 reaches a certain level, recycle
First check valve 23 is opened and to the axial float of input shaft into row buffering.
Preferably, the first connector 20 is formed with mounting surface, and mounting surface is attached at the inner side end of a bottom end 12, and first connects
Junctor 20 is fixedly connected with cylinder bottom end 12 by wearing the fastener of the two.
Preferably, it is also set up on the second connector 30 for the mounting hole 33 of the output axis connection with load.
Preferably, one layer of wearing layer 311 is also wrapped on the cylinder of pillar 31.
The invention also discloses a kind of harmonic speed changers, and including firm gear, wave producer, the harmonic speed changer is also
Including above-mentioned flexbile gear.
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 flexbile gear, including ontology, the ontology is cylindrical in shape, the ontology has nozzle end and cylinder bottom end, the nozzle end
Outer wall on be provided with for the external tooth of the interior tooth engagement with firm gear, which is characterized in that offered in the middle part of the cylinder bottom end logical
Hole, the flexbile gear further include the first connector and the second connector for the input axis connection with load；Described first connects
Junctor is set in the ontology and is fixedly connected with the ontology, and first connector is towards one end of the cylinder bottom end
Across the through-hole and protrude from the end face of the cylinder bottom end；Second connector be located at described it is external and with the cylinder bottom
The end face at end is oppositely arranged, wherein：
Second connector is more towards being provided with the multiple pillars vertical with the end face on the end face of one end of the cylinder bottom end
A pillar is circumferentially uniformly distributed, first connector be pierced by the end face of one end of the cylinder bottom end offer axially inwards it is more
A guide groove, multiple guide grooves are circumferentially uniformly distributed, and the depth in the axial direction of each guide groove is described convex more than each
The length of column, multiple pillars are axially inserted into multiple guide grooves correspondingly；
The difference of the depth of the guide groove and the length of the pillar is more than the axial movement value of the input shaft of the load.
2. flexbile gear according to claim 1, which is characterized in that first connector is pierced by one end of the cylinder bottom end
Offer column chamber in the middle part of end face, second connector is towards being formed with work in the middle part of the end face of one end of the cylinder bottom end
Core is filled in, the piston core stretches to the column chamber and can simultaneously be moved axially along the column chamber, the piston core and the column
The cavity wall of shape chamber is sealed by sealing ring, wherein：
First connector is internally provided with the first check valve and the second check valve；The import of first check valve with it is described
Column chamber connects, and the outlet of first check valve is through the end face of the one end of first connector far from the cylinder bottom end；
The outlet of second check valve is connected with the column chamber, and the import of second check valve is remote through first connector
The end face of one end from the cylinder bottom end.
3. flexbile gear according to claim 2, which is characterized in that set between the bottom of chamber of the column chamber and the piston core
There is spring, the coefficient of elasticity of the spring between the bottom of chamber of the column chamber and the piston core is less than in first check valve
The coefficient of elasticity of spring.
4. flexbile gear according to claim 1, which is characterized in that first connector is formed with mounting surface, the installation
Face paste invests the inner side end of the cylinder bottom end, and first connector is consolidated with the cylinder bottom end by wearing the fastener of the two
Fixed connection.
5. flexbile gear according to claim 1, which is characterized in that also set up on second connector for the load
Output axis connection mounting hole.
6. flexbile gear according to claim 1, which is characterized in that one layer of wearing layer is also wrapped on the cylinder of the pillar.
7. a kind of harmonic speed changer, including firm gear, wave producer, which is characterized in that the harmonic speed changer further include as
Flexbile gear in claim 1 to 6 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721807551.4U CN207598855U (en) | 2017-12-21 | 2017-12-21 | Flexbile gear and harmonic speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721807551.4U CN207598855U (en) | 2017-12-21 | 2017-12-21 | Flexbile gear and harmonic speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598855U true CN207598855U (en) | 2018-07-10 |
Family
ID=62767511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721807551.4U Expired - Fee Related CN207598855U (en) | 2017-12-21 | 2017-12-21 | Flexbile gear and harmonic speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282010A (en) * | 2017-07-20 | 2019-01-29 | 住友重机械工业株式会社 | Flexible engagement gear device |
-
2017
- 2017-12-21 CN CN201721807551.4U patent/CN207598855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282010A (en) * | 2017-07-20 | 2019-01-29 | 住友重机械工业株式会社 | Flexible engagement gear device |
| CN109282010B (en) * | 2017-07-20 | 2021-11-05 | 住友重机械工业株式会社 | Flexible engagement type gear device |
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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: 20180710 Termination date: 20191221 |