CN208845674U - A kind of teeth portion structure of flexbile gear - Google Patents
A kind of teeth portion structure of flexbile gear Download PDFInfo
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- CN208845674U CN208845674U CN201821489286.4U CN201821489286U CN208845674U CN 208845674 U CN208845674 U CN 208845674U CN 201821489286 U CN201821489286 U CN 201821489286U CN 208845674 U CN208845674 U CN 208845674U
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Abstract
The utility model provides a kind of teeth portion structure of flexbile gear, can easily assemble, and flexbile gear and firm gear can be made to engage well, and reaches preferable transmission accuracy.It includes the thin-walled ontology of flexbile gear, ring is furnished with several uniformly distributed outer double wedges at the correspondence outer wall of the connecting pin relative to firm gear of the thin-walled ontology, the upper edge portion of each outer double wedge has been sequentially arranged inner segment circular arc R along its length direction from-inner-to-outer, first oblique line L1 of one section of from-inner-to-outer flaring, one section of straight line L2, second oblique line L3 of one section of from-inner-to-outer necking, outer segment chamfering C, the straight line L2 is the straight line for being parallel to the corresponding position of outer end face of the thin-walled ontology, the correspondence outer end at the length direction both ends of the straight line L2 and the first oblique line L1, the high settings such as the correspondence inner end of the second oblique line L3.
Description
Technical field
The utility model relates to the technical field of flexbile gear structure, the teeth portion structure of specially a kind of flexbile gear.
Background technique
The main component of harmonic wave speed reducing machine is that wave producer, flexible gear (hereinafter referred to as flexbile gear) and rigid gear are (following
Abbreviation firm gear), wave producer is in flexbile gear, and flexbile gear is in firm gear.After wave producer with major and minor axis puts into flexbile gear, compel
Deformation of flexible wheel is set also to form major and minor axis, the long axis region of flexbile gear and firm gear form meshing state, i.e. the external tooth of flexbile gear and firm gear
Internal tooth is engaged along tooth height.It makes flexible gear generate controlled elasticity deformation by wave acoustical generator, and is meshed to come with rigid gear
The gear drive of passing movement and power.
Harmonic wave speed reducing machine be earliest in order to adapt to space technology development and develop rapidly a kind of novel mechanical transmission,
With the continuous development of science and technology, harmonic wave speed reducing machine is also widely used for the precision drives field such as medical machinery, robot, therefore,
Requirement to harmonic wave speed reducing machine is also higher and higher, and gear is the primary drive component in mechanical equipment, with to harmonic wave speed reducing machine
The raising of demand, the requirement to gear are also improving.
Flexbile gear inner hole is circle, its teeth portion becomes to be similar to cam face after generating flexible deformation after loading wave producer,
But it is to be similar to the cylindrical body of cam curve, but can all deform in wave producer both ends major and minor axis that it, which is not, meeting in this way
Change the engagement of flexbile gear and firm gear tooth, or even has interference.
Summary of the invention
In view of the above-mentioned problems, the utility model provides a kind of teeth portion structure of flexbile gear, can easily assemble, and
Flexbile gear and firm gear can be made to engage well, and reach preferable transmission accuracy.
A kind of teeth portion structure of flexbile gear, it is characterised in that: it includes the thin-walled ontology of flexbile gear, the thin-walled ontology it is opposite
Ring is furnished with several uniformly distributed outer double wedges at the correspondence outer wall of the connecting pin of firm gear, the upper edge portion of each outer double wedge along
The first oblique line L1, the one section of straight line that its length direction from-inner-to-outer is sequentially arranged inner segment circular arc R, one section of from-inner-to-outer is flared
L2, one section of from-inner-to-outer necking the second oblique line L3, outer segment chamfering C, the straight line L2 be parallel to the thin-walled ontology outer
Correspondence outer end, the institute of the straight line of the corresponding position of end face, the length direction both ends of the straight line L2 and the first oblique line L1
State the high settings such as the correspondence inner end of the second oblique line L3.
It is further characterized by: the radius of the inner segment circular arc R is 5mm~50mm, and the inner segment circular arc R is from thin-walled
The correspondence of the outer end face of the outer convex arc of the outer end face flaring out of ontology, the inner end of the inner segment circular arc R and the thin-walled ontology
Smooth transition connects at position, and the outer end of the inner segment circular arc R is connected with the inner end smooth transition of the first oblique line L1, inner segment
Circular arc R is the easement curve that outer double wedge is connected with the thin-walled ontology；
The projected length of the corresponding thin-walled body outer wall of the first oblique line L1 be 2.5mm~12mm, described first
Flaring angulation at oblique line L1 and the thin-walled ontology corresponding end surface is 0.5 °~1 °；
The projected length of the corresponding thin-walled body outer wall of the second oblique line L2 be 2.5mm~12mm, described first
Necking angulation at oblique line L1 and the thin-walled ontology corresponding end surface is 0.5 °~1 °；
The projected length of thin-walled body outer wall corresponding to the outer segment chamfering C is 0.5mm~2mm；
The outer segment chamfering is specially oblique 45 ° of chamferings, and outer segment chamfering outer end extends to the correspondence of the thin-walled ontology
Inside end face, and second straight line L2 combination after, facilitate by flexbile gear and firm gear assembling.
After the utility model, the first oblique line L1 and the second oblique line L2 can effectively avoid the engagement of flexbile gear and firm gear dry
It relates to, the setting of outer segment chamfering C1 and straight line L2 can very easily fit together flexbile gear and firm gear, and the length side of straight line L2
To both ends and the correspondence outer end of the first oblique line L1, the high settings such as correspondence inner end of the second oblique line L3, i.e., pass through rolling at L1, L2, L3
Tooth, which is practiced Buddhism or Taoism, reaches contour, can obtain higher transmission accuracy.
Detailed description of the invention
Fig. 1 is the utility model schematic diagram of main cross-sectional structure；
Fig. 2 is partial enlargement structural representation at the A of Fig. 1；
Title corresponding to serial number is as follows in figure:
Thin-walled ontology 1, outer double wedge 2, inner segment circular arc R, the first oblique line L1, straight line L2, the second oblique line L3, outer segment chamfering C.
Specific embodiment
A kind of teeth portion structure of flexbile gear, is shown in Fig. 1, Fig. 2: it includes the thin-walled ontology 1 of flexbile gear, thin-walled ontology relative to rigid
Ring is furnished with several uniformly distributed outer double wedges 2 at the correspondence outer wall of the connecting pin of wheel, and the upper edge portion of each outer double wedge 2 is along its length
The first oblique line L1, the one section of straight line L2, one section that direction from-inner-to-outer is sequentially arranged inner segment circular arc R, one section of from-inner-to-outer is flared
The second oblique line L3, outer segment the chamfering C, straight line L2 of from-inner-to-outer necking are the corresponding position for being parallel to the outer end face of thin-walled ontology
Straight line, the correspondence outer end of the length direction both ends of straight line L2 and the first oblique line L1, the second oblique line L3 correspondence inner end contour set
It sets.
The radius of inner segment circular arc R is 5mm~50mm, and inner segment circular arc R is from the outer of the outer end face flaring out of thin-walled ontology 1
Convex arc, the inner end of inner segment circular arc R are connected with the corresponding position smooth transition of the outer end face of thin-walled ontology, outside inner segment circular arc R
End is connected with the inner end smooth transition of the first oblique line L1, and inner segment circular arc R is the easement curve that outer double wedge is connected with thin-walled ontology 1；
The projected length of corresponding 1 outer wall of thin-walled ontology of first oblique line L1 be 2.5mm~12mm, the first oblique line L1 and
Flaring angulation at 1 corresponding end surface of thin-walled ontology is 0.5 °~1 °；
The projected length of corresponding 1 outer wall of thin-walled ontology of second oblique line L2 be 2.5mm~12mm, the first oblique line L1 and
Necking angulation at 1 corresponding end surface of thin-walled ontology is 0.5 °~1 °；
The projected length of 1 outer wall of thin-walled ontology corresponding to outer segment chamfering C is 0.5mm~2mm；
Outer segment chamfering C is specially oblique 45 ° of chamferings, and the outer end outer segment chamfering C extends to inside the corresponding end surface of thin-walled ontology,
After being combined with second straight line L2, facilitate flexbile gear and firm gear assembling.
After the utility model, the first oblique line L1 and the second oblique line L2 can effectively avoid the engagement of flexbile gear and firm gear dry
It relates to, the setting of outer segment chamfering C1 and straight line L2 can very easily fit together flexbile gear and firm gear, and the length side of straight line L2
To both ends and the correspondence outer end of the first oblique line L1, the high settings such as correspondence inner end of the second oblique line L3, i.e., pass through rolling at L1, L2, L3
Tooth, which is practiced Buddhism or Taoism, reaches contour, can obtain higher transmission accuracy.
Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created
Preferred embodiment should not be construed as limiting the practical range of the utility model creation.All create according to the utility model is applied
All the changes and improvements made by range etc., shall still fall within the scope of this patent.
Claims (6)
1. a kind of teeth portion structure of flexbile gear, it is characterised in that: it includes the thin-walled ontology of flexbile gear, the thin-walled ontology relative to
Ring is furnished with several uniformly distributed outer double wedges at the correspondence outer wall of the connecting pin of firm gear, and the upper edge portion of each outer double wedge is along it
Length direction from-inner-to-outer be sequentially arranged inner segment circular arc R, the first oblique line L1 of one section of from-inner-to-outer flaring, one section of straight line L2,
The second oblique line L3, outer segment the chamfering C, the straight line L2 of one section of from-inner-to-outer necking are the outer end face for being parallel to the thin-walled ontology
Corresponding position straight line, the correspondence outer end of the length direction both ends of the straight line L2 and the first oblique line L1, described
The high settings such as the correspondence inner end of two oblique line L3.
2. a kind of teeth portion structure of flexbile gear as described in claim 1, it is characterised in that: the radius of the inner segment circular arc R is 5mm
~50mm, the inner segment circular arc R are from the outer convex arc of the outer end face flaring out of thin-walled ontology, the inner end of the inner segment circular arc R
It is connected with the corresponding position smooth transition of the outer end face of the thin-walled ontology, the outer end of the inner segment circular arc R and described first
The inner end smooth transition of oblique line L1 connects, and inner segment circular arc R is the easement curve that outer double wedge is connected with the thin-walled ontology.
3. a kind of teeth portion structure of flexbile gear as described in claim 1, it is characterised in that: the first oblique line L1's is corresponding
The projected length of thin-walled body outer wall is 2.5mm~12mm, at the first oblique line L1 and the thin-walled ontology corresponding end surface
Being flared angulation is 0.5 °~1 °.
4. a kind of teeth portion structure of flexbile gear as described in claim 1, it is characterised in that: the second oblique line L2's is corresponding
The projected length of thin-walled body outer wall is 2.5mm~12mm, at the first oblique line L1 and the thin-walled ontology corresponding end surface
Necking angulation is 0.5 °~1 °.
5. a kind of teeth portion structure of flexbile gear as described in claim 1, it is characterised in that: thin corresponding to the outer segment chamfering C
The projected length of wall body outer wall is 0.5mm~2mm.
6. a kind of teeth portion structure of flexbile gear as claimed in claim 5, it is characterised in that: the outer segment chamfering is specially oblique 45 °
Chamfering, outer segment chamfering outer end extend to inside the corresponding end surface of the thin-walled ontology.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821489286.4U CN208845674U (en) | 2018-09-12 | 2018-09-12 | A kind of teeth portion structure of flexbile gear |
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| CN201821489286.4U CN208845674U (en) | 2018-09-12 | 2018-09-12 | A kind of teeth portion structure of flexbile gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895146A (en) * | 2018-09-12 | 2018-11-27 | 浙江大学昆山创新中心 | A kind of teeth portion structure of flexbile gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895146A (en) * | 2018-09-12 | 2018-11-27 | 浙江大学昆山创新中心 | A kind of teeth portion structure of flexbile gear |
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