CN204372060U - A kind of four eccentric drive mechanisms - Google Patents
A kind of four eccentric drive mechanisms Download PDFInfo
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- CN204372060U CN204372060U CN201420827293.6U CN201420827293U CN204372060U CN 204372060 U CN204372060 U CN 204372060U CN 201420827293 U CN201420827293 U CN 201420827293U CN 204372060 U CN204372060 U CN 204372060U
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- eccentric
- driving gear
- gear
- shaft
- stiffener
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Abstract
The utility model relates to a kind of four eccentric drive mechanisms, it is characterized in that, comprise four groups of measure-alike eccentric stiffeners, described eccentric stiffener comprises eccentric shaft and the actuation gear be coaxially fixed on described eccentric shaft shakes son with eccentric, four described eccentric shafts are parallel to each other, and are arranging along in the plane vertical with described eccentric shaft in quadrilateral; Between four described eccentric stiffeners, be provided with measure-alike and intermeshing one group of driving gear, described driving gear comprises transmission shaft, and described transmission shaft parallels with described eccentric shaft; At grade, four described bias shake are in another plane, and a driving gear is meshed with the actuation gear of first and second eccentric stiffener for described actuation gear and driving gear; Another driving gear is meshed with the actuation gear of the 3rd and the 4th eccentric stiffener, and four described bias shake are arrange with angle on described eccentric shaft.Its effect is, rational in infrastructure and can reduce size and the linear velocity of actuation gear.
Description
Technical field
The utility model relates to high-frequency vibration field of mechanical technique, particularly relates to a kind of four eccentric drive mechanisms.
Background technique
Current gear driven eccentric wheel rotates the design method forming eccentric force excitation vibrations generally three kinds:
The first is that single eccentric wheel rotates formation eccentric force, and this eccentric force direction is not fixed.
The second design method is Double-gear engagement, and each group gear drives an eccentric wheel respectively.This design can make the eccentric force in gear axis line of centers direction cancel out each other the eccentric force only retained perpendicular to gear axis line of centers direction.The defect of this design method is that eccentric maximum external profile diameter need be less than gear compound graduation circular diameter.By eccentric force formula F=mr ω
2known, when eccentric mass and angular velocity of rotation constant, eccentric arm r has considerable influence to eccentric force.Therefore above-mentioned design needs the diameter increasing driving gear to guarantee to obtain larger eccentric force under normal circumstances.This just means that the linear velocity of gear is larger.
The third design method is patent announcement number for CN103706451A patent name is a four eccentric stiffener Gear Transmission Design related in the Chinese patent of high-frequency breaking hammer.This design due to needs eccentric shaft cog between directly engage transferring power, therefore still do not break away from the restriction that eccentric maximum external profile diameter need be less than gear compound graduation circular diameter; In addition, this design also needs to set up larger carrier gear to correct position skew between four eccentricity gears, therefore makes space hold larger.
Model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure and can at four eccentric drive mechanisms ensureing to reduce under eccentric wheel has the prerequisite of enough radiuses actuation gear size and linear velocity.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of four eccentric drive mechanisms, it is characterized in that, comprise the first measure-alike eccentric stiffener, the second eccentric stiffener, three eccentricity mechanism and the 4th eccentric stiffener, each described eccentric stiffener comprises eccentric shaft and the actuation gear be coaxially fixed on described eccentric shaft shakes son with eccentric, four described eccentric shafts are parallel to each other, and are arranging along in the plane vertical with described eccentric shaft in quadrilateral; Between four described eccentric stiffeners, be provided with measure-alike and intermeshing first driving gear and the second driving gear, described driving gear comprises transmission shaft, and described transmission shaft parallels with described eccentric shaft; At grade, four described bias shake are in another plane, and described first driving gear is meshed with the actuation gear of described first eccentric stiffener and the actuation gear of the second eccentric stiffener for described actuation gear and driving gear; Described second driving gear is meshed with the actuation gear of described three eccentricity mechanism and the actuation gear of the 4th eccentric stiffener, and four described bias shake are arrange with angle on described eccentric shaft.
On the basis of technique scheme, the utility model can also do following improvement.
Further, four described eccentric shafts parallelogram rectangular arrangement in the plane that edge is vertical with described eccentric shaft; Preferably, described parallelogram is rectangle.
Further, four described eccentric shafts are being trapezoidal layout along in the plane vertical with described eccentric shaft.
Further, four described eccentric shafts are along symmetrically trapezoidal layout in the plane vertical with described eccentric shaft.
The utility model is work like this: directly do not engage each other between four actuation gears, and keeps synchronous same-speed running by a pair driving gear, can guarantee that the direction of excitation force acts on impact direction completely like this.
In actual application, with fluid motor-driven wherein one group of eccentric stiffener, also can drive and organize eccentric stiffener more, optional driving gear and eccentric stiffener can also be driven to carry out combination and drive.
When the actuation gear of the first eccentric stiffener drives its eccentric shake to turn clockwise, bias shake of the second eccentric stiffener also turns clockwise under the drive of the first driving gear; First driving gear drives the second driving gear to turn clockwise simultaneously, and under the drive of the second driving gear, bias shake of three eccentricity mechanism and bias shake of the 4th eccentric stiffener are synchronously rotated counterclockwise; Because four groups of actuation gear rotating speeds are identical, its eccentric force formed is cancelled out each other in the eccentric shaft line of centers direction of the first eccentric stiffener and the second eccentric stiffener, and is mutually superposing perpendicular to this line of centers direction.So just achieve and form excitation force in needs direction.
The beneficial effects of the utility model are: (1) does not have meshing relation each other due to four groups of actuation gears, and therefore the maximum external profile diameter of eccentric wheel can be designed to be greater than actuation gear tip diameter.(2) significantly can reduce the linear velocity that single actuation gear rotates under identical eccentric force action effect, reduce actuation gear machining accuracy demand, significantly reduce the bearing capacity requirement to eccentric shaft spring bearing.(3) when gear-box length is constant, eccentric force can be increased substantially.
Accompanying drawing explanation
Fig. 1 is monomer eccentric stiffener structural representation;
Fig. 2 is four eccentric drive mechanism structural representations of the present utility model;
Fig. 3 is the perspective view of four eccentric drive mechanisms of the present utility model;
Fig. 4 and Fig. 5 is four eccentric shaft lines of the present utility model structural representation when being parallelogram;
Fig. 6 ~ Fig. 9 is four eccentric shaft lines of the present utility model structural representation when being trapezoidal.
In Fig. 1 to Fig. 9, the component names represented by each label is as follows: 1, the first eccentric stiffener; 2, the second eccentric stiffener; 3, three eccentricity mechanism; 4, the 4th eccentric stiffener; 5, the first driving gear; 6, the second driving gear; 7, eccentric shaft; 8, actuation gear; 9, transmission shaft; 10, eccentric shake.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As described in Figure 1, be monomer eccentric stiffener structural representation;
As shown in Figures 2 and 3, a kind of four eccentric drive mechanisms, comprise the first measure-alike eccentric stiffener 1, second eccentric stiffener 2, three eccentricity mechanism 3 and the 4th eccentric stiffener 4, each described eccentric stiffener comprises eccentric shaft 7 and the actuation gear 8 be coaxially fixed on described eccentric shaft shakes son 10 with eccentric, four described eccentric shafts are parallel to each other, and are arranging along in the plane vertical with described eccentric shaft in quadrilateral; Between four described eccentric stiffeners, be provided with measure-alike and intermeshing first driving gear 5 and the second driving gear 6, described driving gear comprises transmission shaft 9, and described transmission shaft 9 parallels with described eccentric shaft 7; At grade, four described bias shake are in another plane, and described first driving gear 5 is meshed with the actuation gear 8 of described first eccentric stiffener and the actuation gear 8 of the second eccentric stiffener for described actuation gear and driving gear; Described second driving gear is meshed with the actuation gear of described three eccentricity mechanism and the actuation gear of the 4th eccentric stiffener, and four described bias shake are arrange with angle on described eccentric shaft.
As shown in Figures 4 and 5, four described eccentric shafts are being arranged along parallelogram in the plane vertical with described eccentric shaft.Preferably, described parallelogram is rectangle.
As shown in figs. 6-9, be structural representation when four eccentric shaft lines of the present utility model are trapezoidal; Wherein Fig. 6 and Fig. 7 represents trapezoid structure respectively and is inverted trapezoid structure; It is asymmetric trapezoidal structure that Fig. 8 and Fig. 9 then shows four eccentric shaft lines of the present utility model.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. an eccentric drive mechanism, it is characterized in that, comprise the first measure-alike eccentric stiffener, the second eccentric stiffener, three eccentricity mechanism and the 4th eccentric stiffener, each described eccentric stiffener comprises eccentric shaft and the actuation gear be coaxially fixed on described eccentric shaft shakes son with eccentric, described eccentric shaft is parallel to each other, and is arranging along in the plane vertical with described eccentric shaft in quadrilateral; Between four described eccentric stiffeners, be provided with measure-alike and intermeshing first driving gear and the second driving gear, described driving gear comprises transmission shaft, and described transmission shaft parallels with described eccentric shaft; At grade, four described bias shake are in another plane, and described first driving gear is meshed with the actuation gear of described first eccentric stiffener and the actuation gear of the second eccentric stiffener for described actuation gear and described driving gear; Described second driving gear is meshed with the actuation gear of described three eccentricity mechanism and the actuation gear of the 4th eccentric stiffener, and four described bias shake are arrange with angle on described eccentric shaft.
2. four eccentric drive mechanisms according to claim 1, is characterized in that, four described eccentric shafts are being arranged along parallelogram in the plane vertical with described eccentric shaft.
3. four eccentric drive mechanisms according to claim 2, is characterized in that, described parallelogram is rectangle.
4. four eccentric drive mechanisms according to claim 1, is characterized in that, four described eccentric shafts are being trapezoidal layout along in the plane vertical with described eccentric shaft.
5. four eccentric drive mechanisms according to claim 4, is characterized in that, four described eccentric shafts are along symmetrically trapezoidal layout in the plane vertical with described eccentric shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827293.6U CN204372060U (en) | 2014-12-23 | 2014-12-23 | A kind of four eccentric drive mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827293.6U CN204372060U (en) | 2014-12-23 | 2014-12-23 | A kind of four eccentric drive mechanisms |
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| Publication Number | Publication Date |
|---|---|
| CN204372060U true CN204372060U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827293.6U Active CN204372060U (en) | 2014-12-23 | 2014-12-23 | A kind of four eccentric drive mechanisms |
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| CN (1) | CN204372060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455216A (en) * | 2014-12-23 | 2015-03-25 | 烟台艾迪精密机械股份有限公司 | Four-eccentricity transmission mechanism |
-
2014
- 2014-12-23 CN CN201420827293.6U patent/CN204372060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455216A (en) * | 2014-12-23 | 2015-03-25 | 烟台艾迪精密机械股份有限公司 | Four-eccentricity transmission mechanism |
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| GR01 | Patent grant |