CN203770578U - Involute non-annular continuous-tooth spherical gear transmission mechanism - Google Patents
Involute non-annular continuous-tooth spherical gear transmission mechanism Download PDFInfo
- Publication number
- CN203770578U CN203770578U CN201320644650.0U CN201320644650U CN203770578U CN 203770578 U CN203770578 U CN 203770578U CN 201320644650 U CN201320644650 U CN 201320644650U CN 203770578 U CN203770578 U CN 203770578U
- Authority
- CN
- China
- Prior art keywords
- spherical crown
- gear
- crown gear
- tooth
- involute
- 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
Landscapes
- Gear Transmission (AREA)
Abstract
The utility model discloses an involute non-annular continuous-tooth spherical gear transmission, which comprises a three-degree-of-freedom rotation pair composed of a convex toothed spherical gear and a concave toothed spherical gear. Through the connection of the rotation pair, the convex toothed spherical gear and the concave toothed spherical gear can be fully engaged to continuously rotate. Meanwhile, since the involute non-annular continuous-tooth spherical gear transmission mechanism is consistent with an existing conventional gear for transmitting the rotation of one degree of freedom in design principle and belongs to the field of continuously engaged involute profiles. In this way, the transmission properties of the conventional gear, such as constant transmission ratio, transmission efficiency and the like, can also be realized by means of the involute non-annular continuous-tooth spherical gear transmission mechanism. The problems that existing discrete-type spherical gears cannot enable the continuously constant transmission ratio when engaged together and the rotation of only two degrees of freedom is provided by involute annular toothed spherical gears can be solved. Therefore, the above structure of the spherical gear can be applied and popularized in actual engineering projects to enable the conditions of the actual engineering projects to be more favorable.
Description
(1) technical field:
The utility model relates to spherical crown gear structure, is specially a pair of involute other than ring type continuous tooth spherical crown gear drive that can engage continuously.
(2) background technique:
Spherical crown gear is a kind of novel mechanical transmission structure, different from the ordinary gear transmission that only possesses one degree of freedom, spherical crown gear can transmit two dimension or three-dimensional rotation motion, meets the kinetic characteristic in the most biological joints of occurring in nature, thereby is subject to extensive concern.But there is the structure problem that is difficult to overcome in the profile of tooth of spherome surface and engagement system always.
At present existing two kinds of spherical crown gear structures: the first is discrete type spherical crown gear structure, it utilizes taper finger-like tooth and corresponding pit thereof to engage, because its double wedge flank profil is straight line, thereby can not realize accurate stable drive ratio spherical motion, be difficult in practical engineering project, obtain application and promote; The second is involute annular tooth spherical crown gear structure, its be flank profil line taking involute gear as foundation, carry out the profile of tooth that obtains after contiguous circumferential array, but this structure just, make it that two degrees of freedom can only be provided in actual use, in application, have certain narrow limitation.
(3) model utility content:
For this reason, the utility model proposes a kind of involute other than ring type continuous tooth spherical crown gear drive that can engage continuously, with the fixed problem that only has two degrees of freedom than a transmission difficult problem and involute annular tooth spherical crown gear that solves existing discrete type spherical crown gear structure.
The involute other than ring type continuous tooth spherical crown gear drive that can engage continuously that can solve the problems of the technologies described above, comprises a recessed tooth spherical crown gear and a double wedge spherical crown gear, the Three Degree Of Freedom revolute pair of composition.The involute tooth profile of recessed tooth spherical crown gear and double wedge spherical crown gear is to try to achieve based on module and Tooth Number Calculation, required result comprises the design parameters such as bulb diameter at the bottom of tooth top bulb diameter, tooth, base bulb diameter, and the calculation method of these parameters is consistent with the calculation method of the gear that common transmission single-degree-of-freedom rotates.
For recessed tooth spherical crown gear, adopt " logic OR " stack rule around two groups of involute gear profile lines of its x axle and y axle circumference array, merge and recessed tooth spherical crown gear profile line; For double wedge spherical crown gear, adopt " logical AND " stack rule around two groups of involute gear profile lines of its x axle and y axle circumference array, merge and double wedge spherical crown gear profile line.Meanwhile, this spherical crown wheel tooth profile method of formation is all suitable for for outer gearing involute other than ring type continuous tooth spherical crown gear drive and interior engagement involute other than ring type continuous tooth spherical crown gear drive.The each recessed tooth correspondence that the spherical crown gear being generated by these two kinds of logics stack rules can meet recessed tooth spherical crown gear the double wedge of a double wedge spherical crown gear matching.
Process and be installed for convenient, the part ball surface of recessed tooth spherical crown gear and double wedge spherical crown gear is to play the straight pin of the effect of being installed or the structure of other similar functions.
In the time that spherical crown gear is installed, must meet the recessed tooth of symmetry center of recessed tooth spherical crown gear and the symmetry center double wedge Matching installation of double wedge spherical crown gear.
Recessed tooth spherical crown gear and double wedge spherical crown gear, all can rotate around three axles of the x, y, z of himself.And one is driving gear in the two, one is driven gear.Driving gear can be passed on driven gear around the independent rotation of three axles of self x, y, z simultaneously, makes driven gear to carry out independent rotation around three axles of self x, y, z.
By the connection of this spherical crown gear revolute pair, recessed tooth spherical crown gear and double wedge spherical crown gear can engage completely and rotate continuously.Meanwhile, owing to being that the design principle of the gear that rotates with existing common transmission single-degree-of-freedom is consistent, belong to the involute profile of continuous engagement, therefore can realize the drive characteristic such as stable drive ratio, transmission efficiency the same with ordinary gear.
Advantage of the present utility model:
Cannot be fixed than the problem of transmission continuously when the involute other than ring type continuous tooth spherical crown gear drive that the utility model can engage has continuously solved existing discrete type spherical crown gear engagement, and involute annular tooth spherical crown gear only provides the problem of two rotational freedoms, thereby be that spherical crown gear structure obtains application and promotes in practical engineering project, more favourable condition is provided.
(4) brief description of the drawings:
Fig. 1 (a) is the structural representation of recessed tooth spherical crown gear of the present utility model.
Fig. 1 (b) is the structural representation of double wedge spherical crown gear of the present utility model.
Fig. 2 is four views of recessed tooth spherical crown gear of the present utility model.
Fig. 3 is four views of double wedge spherical crown gear of the present utility model.
Fig. 4 is Fig. 1 (a), Fig. 1 (b) concave tooth spherical crown gear and the double wedge spherical crown gear structural representation when intermeshing at symmetry center gear teeth place, wherein this in figure is 1:1 to signal with the velocity ratio of recessed tooth spherical crown gear and double wedge spherical crown gear, and taking recessed tooth spherical crown gear as driving gear, double wedge spherical crown gear is as driven gear.
Fig. 5 is that Fig. 4 concave tooth spherical crown gear (driving gear) is rotating after 45 degree around z axle, and the intermeshing structural representation of double wedge spherical crown gear (driven gear).
Fig. 6 is that Fig. 4 concave tooth spherical crown gear (driving gear) is relatively rotating after 90 degree around x axle, and the intermeshing structural representation of double wedge spherical crown gear (driven gear).
Fig. 7 is that Fig. 6 concave tooth spherical crown gear (driving gear) is rotating after 45 degree around z axle, and the intermeshing structural representation of double wedge spherical crown gear (driven gear).
Fig. 8 is that Fig. 4 concave tooth spherical crown gear (driving gear) is relatively rotating after 90 degree around y axle, and the intermeshing structural representation of double wedge spherical crown gear (driven gear).
Fig. 9 is that Fig. 8 concave tooth spherical crown gear (driving gear) is rotating after 45 degree around z axle, and the intermeshing structural representation of double wedge spherical crown gear (driven gear).
Figure 10 is that Fig. 9 concave tooth spherical crown gear (driving gear) is rotating after 90 degree around x axle, and the intermeshing structural representation of double wedge spherical crown gear (driven gear).
Figure number mark: 1, recessed tooth spherical crown gear (driving gear); 2, double wedge spherical crown gear (driven gear); 3, play the spherical crown gear cylinder pin of the effect of being installed; 4. the involute tooth profile of recessed tooth spherical crown gear and double wedge spherical crown gear; 5, the recessed tooth of symmetry center of recessed tooth spherical crown gear (driving gear); 6, the symmetry center double wedge of double wedge spherical crown gear (driven gear).
(5) embodiment:
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
The involute tooth spherical crown gear that can engage is continuously made up of a pair of recessed tooth spherical crown gear 1 and double wedge spherical crown gear 2.Wherein, the involute tooth profile 4 of recessed tooth spherical crown gear 1 and double wedge spherical crown gear 2 can be analogous to the involute tooth profile of the gear of common transmission single-degree-of-freedom rotation, calculate and try to achieve based on module m and number of teeth z, the design parameter such as circular diameter, generating circle diameter at the bottom of tip diameter that solving result comprises the similar ordinary gears such as bulb diameter at the bottom of tooth top bulb diameter, tooth, base bulb diameter, tooth.This design principle makes spherical crown gear also can meet the same drive characteristic such as stable drive ratio, transmission efficiency of gear of rotating with common transmission single-degree-of-freedom.The design parameter of trying to achieve based on these calculating can obtain two groups of gear profile lines around x axle and y axle circumference array.For recessed tooth spherical crown gear 1, adopt " logic OR " stack rule around two groups of involute gear profile lines of its x axle and y axle circumference array, merge and recessed tooth spherical crown gear profile line; And for double wedge spherical crown gear 2, adopt " logical AND " stack rule around two groups of involute gear profile lines of its x axle and y axle circumference array, merge and double wedge spherical crown gear profile line.The each recessed tooth correspondence that the spherical crown gear being generated by these two kinds of logics stack rules can meet recessed tooth spherical crown gear 1 double wedge of a double wedge spherical crown gear 2 matching.Calculate and explanation for convenient, this specification example is that transmission ratios equals a pair of spherical crown gear that 1:1, modulus m equal 1.5, number of teeth z equals 20.
In practical engineering application, in order to facilitate processing and the installation of spherical crown gear, conventionally do not require on its 360 degree ball surface and be covered with the gear teeth, but only retain a part of gear teeth, the structure of remaining part Design and manufacture for being installed.Taking the accompanying drawing of this specification as example, the half the processing of sphere of recessed tooth spherical crown gear 1 and double wedge spherical crown gear 2 is the wheel flank of tooth, and second half the processing of sphere has the straight pin 3 of the use of being installed, as shown in Figure 1 (a) and Fig 1 (b) shows.
In the time that spherical crown gear is installed, must meet the recessed tooth 5 of symmetry center of recessed tooth spherical crown gear and symmetry center double wedge 6 Matching installations of double wedge spherical crown gear, as shown in Figure 4.Under normal circumstances, in a pair of recessed tooth spherical crown gear and double wedge spherical crown gear, have one to be driving gear, another is driven gear.For account for motion state in this example, will be taking recessed tooth spherical crown gear as driving gear, double wedge spherical crown gear is as driven gear.
When recessed tooth spherical crown gear 1(driving gear) in the time that its z axle rotates, double wedge spherical crown gear 2(driven gear) thus also rotate around its z axle because be subject to the thrust of engaging tooth.When the engagement taking Fig. 4 is during as original state, recessed tooth spherical crown gear 1(driving gear) rotate after 45 degree around its z axle, obtain engagement as shown in Figure 5.
When recessed tooth spherical crown gear 1(driving gear) in the time that its x axle rotates, double wedge spherical crown gear 2(driven gear) thus also rotate around its x axle because be subject to the thrust of engaging tooth.When the engagement taking Fig. 4 is during as original state, recessed tooth spherical crown gear 1(driving gear) rotate after 90 degree around its x axle, obtain engagement as shown in Figure 6.
When recessed tooth spherical crown gear 1(driving gear) in the time that its y axle rotates, double wedge spherical crown gear 2(driven gear) thus also rotate around its y axle because be subject to the thrust of engaging tooth.When the engagement taking Fig. 4 is during as original state, recessed tooth spherical crown gear 1(driving gear) rotate after 90 degree around its y axle, obtain engagement as shown in Figure 8.
It is the motion transmit mode in order to describe this spherical crown gear that above syllogism is stated, and comprises three degree of freedom.Due to recessed tooth spherical crown gear 1(driving wheel) rotate around x, y or z axle no matter be, all can drive double wedge spherical crown gear 2(follower) correspondence rotate, and because have the gear teeth all to keep engagement in any rotation moment, therefore realized the motion of spherical crown gear three degree of freedom, in other words, driving gear is all separate around the rotation of three axles, thereby this spherical crown gear structure can meet driving gear and transmits three axles simultaneously and rotate any driven gear that moves to producing.So, in like manner can obtain following instance:
When the engagement taking Fig. 6 is during as original state, recessed tooth spherical crown gear 1(driving gear) rotate after 45 degree around its z axle, obtain engagement as shown in Figure 7;
When the engagement taking Fig. 8 is during as original state, recessed tooth spherical crown gear 1(driving gear) rotate after 45 degree around its z axle, obtain engagement as shown in Figure 9;
When the engagement taking Fig. 9 is during as original state, recessed tooth spherical crown gear 1(driving gear) rotate after 90 degree around its x axle, obtain engagement as shown in figure 10.
More engagements around three rear gained of axles rotation of x, y, z are no longer given an example.
The above, be preferred embodiment of the present utility model, and all changes of doing according to technical solutions of the utility model, when the function producing does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (1)
1. involute other than ring type continuous tooth spherical crown gear drive, comprise a recessed tooth spherical crown gear (1) and a double wedge spherical crown gear (2), the Three Degree Of Freedom revolute pair of composition, it is characterized in that: the involute tooth profile (4) of described recessed tooth spherical crown gear (1) and double wedge spherical crown gear (2) is to try to achieve based on module and Tooth Number Calculation, the design parameter that required result comprises bulb diameter at the bottom of tooth top bulb diameter, tooth, base bulb diameter, the calculation method of above-mentioned design parameter is consistent with the calculation method of the gear that common transmission single-degree-of-freedom rotates; In the time that spherical crown gear is installed, symmetry center double wedge (6) Matching installation of the recessed tooth of symmetry center (5) of described recessed tooth spherical crown gear and double wedge spherical crown gear; Described recessed tooth spherical crown gear (1) and double wedge spherical crown gear (2), all rotate around three axles of x, y, z of himself; And in the two, one is driving gear, and another is driven gear, driving gear can be passed on driven gear around the independent rotation of three axles of self x, y, z simultaneously, makes driven gear to carry out independent rotation around three axles of self x, y, z.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644650.0U CN203770578U (en) | 2013-10-19 | 2013-10-19 | Involute non-annular continuous-tooth spherical gear transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644650.0U CN203770578U (en) | 2013-10-19 | 2013-10-19 | Involute non-annular continuous-tooth spherical gear transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770578U true CN203770578U (en) | 2014-08-13 |
Family
ID=51287769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320644650.0U Expired - Fee Related CN203770578U (en) | 2013-10-19 | 2013-10-19 | Involute non-annular continuous-tooth spherical gear transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770578U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565283A (en) * | 2013-10-19 | 2015-04-29 | 洪浛檩 | Involute non-annular continuous spherical-gear crown gear driving mechanism |
| CN110273979A (en) * | 2019-06-26 | 2019-09-24 | 长春理工大学 | A kind of Three Degree Of Freedom button transmission |
-
2013
- 2013-10-19 CN CN201320644650.0U patent/CN203770578U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565283A (en) * | 2013-10-19 | 2015-04-29 | 洪浛檩 | Involute non-annular continuous spherical-gear crown gear driving mechanism |
| CN110273979A (en) * | 2019-06-26 | 2019-09-24 | 长春理工大学 | A kind of Three Degree Of Freedom button transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104565283A (en) | Involute non-annular continuous spherical-gear crown gear driving mechanism | |
| CN203098755U (en) | Double-stage inner meshing double-arc bevel gear nutation reducer | |
| US20050164824A1 (en) | Epicyclic gear train | |
| CN204900693U (en) | Improvement type speed reducer | |
| CN106352024A (en) | Single-eccentric short transmission chain speed reducer | |
| CN203770578U (en) | Involute non-annular continuous-tooth spherical gear transmission mechanism | |
| CN203962865U (en) | A kind of micro-line segment other than ring type continuous tooth spherical crown gear drive | |
| CN102897682A (en) | Gear transmission case | |
| CN104061295B (en) | Rub planetary reduction gear | |
| CN204267659U (en) | gearbox low gear driven gear | |
| CN203703018U (en) | Drum-shaped cycloid gear structure | |
| CN203099254U (en) | Intelligent holder | |
| CN205896120U (en) | Acceleration rate type main reducer assembly | |
| CN203641433U (en) | Differential mechanism with spur gears and universal joints | |
| CN203703016U (en) | Spherical cycloidal gear structure | |
| CN101498349A (en) | Increase gear for gear type power transmission and wind motor | |
| CN208311381U (en) | A kind of right angle new structure of planetary reducer | |
| CN204878545U (en) | Improvement type motor reducer | |
| CN201190767Y (en) | Speed reducing mechanism on one way clutch | |
| CN203926624U (en) | Speed reducer and Mixing Machine | |
| CN203703051U (en) | Concave cycloidal gear structure | |
| CN203809637U (en) | Speed reduction device with torsion induction differential planetary gear trains | |
| CN206830731U (en) | A kind of power split extruder transmission system | |
| CN204878544U (en) | Motor reducer's improvement structure | |
| CN206749536U (en) | The steering and driving axle of differential structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140813 Termination date: 20161019 |