CN101782102A - Method for adjusting lift range of eccentric wheel mechanism and eccentric wheel mechanism using same - Google Patents
Method for adjusting lift range of eccentric wheel mechanism and eccentric wheel mechanism using same Download PDFInfo
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- CN101782102A CN101782102A CN201019102005A CN201019102005A CN101782102A CN 101782102 A CN101782102 A CN 101782102A CN 201019102005 A CN201019102005 A CN 201019102005A CN 201019102005 A CN201019102005 A CN 201019102005A CN 101782102 A CN101782102 A CN 101782102A
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- eccentric
- shaft
- main shaft
- eccentric shaft
- eccentric wheel
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Abstract
The invention discloses a method for adjusting the lift range of an eccentric wheel mechanism, which comprises the following step of: 1) integrally setting a first main shaft at one end of an eccentric shaft; 2) mounting an eccentric wheel on the eccentric shaft in a clearance fit mode; 3) mounting a second main shaft at the other end of the eccentric shaft in a dismountable mode to ensure that the second main shaft and the first main shaft are on the same axial line and the second main shaft is not coaxial with the eccentric shaft; and 4) rotating the eccentric wheel to a proper position to ensure that the eccentric wheel mechanism reaches the needed lift range and the eccentric wheel is locked and fixed with the eccentric shaft through a locking device. Besides, the invention also discloses the eccentric wheel mechanism using the method. The method can change the lift range of the eccentric wheel mechanism under the condition of not dismounting the eccentric wheel, and is convenient and time-saving to operate.
Description
Technical field
The present invention relates to mechanical engineering field, particularly relate to a kind of method for adjusting lift range of eccentric mechanism and the eccentric mechanism of adopting said method.
Background technique
Eccentric mechanism is a kind of higher pair mechanism, can promote the characteristics of motion that driven member is realized various expections by rational design, thereby is widely used in various machineries, the especially automatic.At present, most of eccentric wheel is that desired movement rule according to driven member designs and makes.Eccentric wheel is after making and installing, and its lift just immobilizes.In mechanical engineering is used, sometimes, can only change qualified other eccentric wheel because the variation of study condition requires eccentric lift also will make corresponding variation for this reason.It is cumbersome so not only to operate, and more time-consuming, has reduced working efficiency.
Summary of the invention
The method for adjusting lift range that an object of the present invention is to provide a kind of eccentric mechanism is the can regulate lift not dismantling under the eccentric situation.
Another object of the present invention is a kind of eccentric mechanism of using above-mentioned method for adjusting lift range.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method for adjusting lift range of eccentric mechanism, eccentric wheel promote the driven member motion with its main axis rotation, and described method may further comprise the steps:
1) end at eccentric shaft fixedly mounts the 1st main shaft;
2) eccentric wheel is installed on the described eccentric shaft with gap fiting mode;
3) the 2nd main shaft is removably mounted on the other end of described eccentric shaft, it is positioned on the same axis and with described eccentric shaft with described the 1st main shaft is positioned at different axis;
4) rotate described eccentric wheel to the appropriate location, make eccentric mechanism reach required lift, and described eccentric wheel and described eccentric shaft are locked by locking device.
Preferably, described eccentric wheel core wheel line equates with the distance of described the 1st spindle axis to the eccentric shaft axle center to the distance in eccentric shaft axle center.
Described eccentric shaft and the 1st integrated spindle axis form, and also can removably install and fix, and for example, eccentric shaft is connected with the 1st spindle thread, pin-and-hole connects or add key connects.
A kind of eccentric mechanism, comprise eccentric shaft and the eccentric wheel that is arranged on the eccentric shaft, one end of described eccentric shaft and the 1st integrated spindle axis form, the other end of described eccentric shaft removably is connected with the 2nd main shaft, described the 1st main shaft and the 2nd main shaft be positioned on the same axis and with described eccentric shaft disalignment, described eccentric wheel and described eccentric shaft are Spielpassung, and by locking device and the locking of described eccentric shaft.
Described the 2nd main shaft and described eccentric shaft are by being threaded and locking by locking nut.
Described eccentric wheel core wheel line to the eccentric shaft distance of shaft centers from equating with the distance of described the 1st spindle axis to the off-axis axle center.
The method for adjusting lift range of eccentric mechanism of the present invention, because main shaft and eccentric wheel are all eccentric with respect to eccentric shaft, therefore can take turns the relative position that changes eccentric wheel and main shaft by rotating eccentricity not dismantling under the eccentric situation, can reach the purpose that changes lift.This method is easy to operate, save time, and improved working efficiency.
Description of drawings
Fig. 1 looks schematic representation for the master of the partly cut-away of eccentric mechanism among Fig. 1;
Fig. 2 looks schematic representation for the master of eccentric shaft, the 1st main shaft among Fig. 2;
Fig. 3 is the lift Principles of Regulation figure of eccentric mechanism of the present invention;
Fig. 4 is variable lift eccentric mechanism lift Principles of Regulation partial enlarged drawings;
Fig. 5 is the cross-sectional schematic of A-A direction among Fig. 2.
Among the figure:
1, the 2nd main shaft; 2, locking nut; 3, screw;
4, eccentric wheel; 5, the 1st main shaft 6, eccentric shaft.
Embodiment
Below in conjunction with accompanying drawing the method for adjusting lift range of eccentric mechanism of the present invention and the structure of eccentric mechanism are elaborated.
As depicted in figs. 1 and 2, eccentric mechanism of the present invention comprises: eccentric shaft 6, eccentric wheel the 4, the 1st main shaft 5 and the 2nd main shaft 1, the 1st main shaft 5 is fixedlyed connected with eccentric shaft 6, also can be integrally formed, eccentric wheel 4 is installed on the eccentric shaft 6 by gap fiting mode, and by locking device, for example a plurality of screw 3 lockings.In the embodiment shown in fig. 5, eccentric wheel 4 is 120 ° screw lock by 2 angles.The 2nd main shaft 1 is installed on the eccentric shaft 6 in mode removably.In the present embodiment, the 2nd main shaft 1 is connected threadably with eccentric shaft 6, and by a locking nut 2 lockings.Referring to Fig. 2 and Fig. 3, eccentric wheel the 4, the 1st main shaft the 5, the 2nd main shaft 1 all is arranged on the eccentric shaft 6, the dead in line of the 1st main shaft the 5, the 2nd main shaft, but with the eccentric shaft disalignment.
Below in conjunction with Fig. 3, Fig. 4 the principle of the adjusting lift of above-mentioned eccentric mechanism is described.
As shown in the figure, the axle center of eccentric shaft is O, and the axle center of the 1st main shaft is O
1, eccentric core wheel is O
2Be convenience of calculation, in the present embodiment, choose eccentric wheel core wheel line to the eccentric shaft axle center apart from OO
2With the 1st spindle axis to the eccentric shaft axle center apart from OO
1Equate.
As eccentric wheel core wheel O
2With the 1st spindle axis O
1During coincidence, the lift of eccentric mechanism is zero; When the eccentric wheel core wheel from O
1Rotation θ angle, position is to O
2During the position, O
1, O
2Between be the work lift of eccentric mechanism apart from e.Have according to the cosine law in the trigonometric function:
Wherein, e
1Be OO
1Between distance, e
2Be OO
2Between distance,
Because the 1st spindle axis to the off-axis axle center apart from OO
1With eccentric wheel core wheel line to the eccentric shaft axle center apart from OO
2Remain unchanged, and equate, be i.e. e
1=e
2,
So:
Can get behind the abbreviation:
Can draw eccentric mechanism by following formula and rotate at any angle that lift is:
Lift is 0 when angle is 0 °, and lift is maximum when angle is 180 °.Lift can 0 and maximum value between select.
In like manner, when eccentric shaft offset distance and the 1st main shaft offset distance are unequal, by calculating the relation that also can draw deflection angle and lift.
Therefore, design the offset of two parts according to the requirement of using after, the method that produces different θ angle by the rotating eccentricity wheel can obtain needed lift.
After adjusting the θ angle, by screw eccentric wheel is fixed, can come into operation.During use, the rotating force of main shaft passes to eccentric wheel by eccentric shaft, and then promotes the to-and-fro motion that driven member is made predetermined lift.
Be appreciated that method of the present invention is equally applicable to cam mechanism, that is: change the eccentric wheel in the said method into cam, eccentric shaft changes camshaft into, and other parts are constant, can reach the purpose that changes the cam mechanism lift.
Claims (7)
1. the method for adjusting lift range of an eccentric mechanism, eccentric wheel promote the driven member motion with its main axis rotation, it is characterized in that may further comprise the steps:
1) end at eccentric shaft fixedly mounts the 1st main shaft;
2) eccentric wheel is installed on the described eccentric shaft with gap fiting mode;
3) the 2nd main shaft is removably mounted on the other end of described eccentric shaft, it is positioned on the same axis and with described eccentric shaft with described the 1st main shaft is positioned at different axis;
4) rotate described eccentric wheel to the appropriate location, make eccentric mechanism reach required lift, and described eccentric wheel and described eccentric shaft are locked by locking device.
2. the method for adjusting lift range of eccentric mechanism according to claim 1, it is characterized in that: described eccentric wheel core wheel line equates with the distance of described the 1st spindle axis to the eccentric shaft axle center to the distance in eccentric shaft axle center.
3. the method for adjusting lift range of eccentric mechanism according to claim 1 is characterized in that: described eccentric shaft and the 1st integrated spindle axis form or removably install and fix.
4. eccentric mechanism, comprise eccentric shaft and the eccentric wheel that is arranged on the eccentric shaft, it is characterized in that: an end of described eccentric shaft and the 1st integrated spindle axis form, the other end of described eccentric shaft removably is connected with the 2nd main shaft, described the 1st main shaft and the 2nd main shaft be positioned on the same axis and with described eccentric shaft disalignment, described eccentric wheel and described eccentric shaft are Spielpassung, and by locking device and the locking of described eccentric shaft.
5. eccentric mechanism according to claim 4 is characterized in that: described the 2nd main shaft and described eccentric shaft are by being threaded and locking by locking nut.
6. eccentric mechanism according to claim 4 is characterized in that: described eccentric wheel core wheel line equates with the distance of described the 1st spindle axis to the eccentric shaft axle center to the distance in eccentric shaft axle center.
7. the method for adjusting lift range of a cam mechanism must be taken turns with its main axis rotation, promotes the driven member motion, it is characterized in that may further comprise the steps:
1) end at camshaft fixedly mounts the 1st main shaft;
2) cam is installed on the described camshaft with gap fiting mode;
3) the 2nd main shaft is removably mounted on the other end of described camshaft, it is positioned on the same axis and with described camshaft with described the 1st main shaft is positioned at different axis;
4) rotate described cam to the appropriate location, make cam mechanism reach required lift, and described cam and described protruding shaft locking are fixed by locking device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201019102005A CN101782102A (en) | 2010-02-08 | 2010-02-08 | Method for adjusting lift range of eccentric wheel mechanism and eccentric wheel mechanism using same |
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CN201019102005A CN101782102A (en) | 2010-02-08 | 2010-02-08 | Method for adjusting lift range of eccentric wheel mechanism and eccentric wheel mechanism using same |
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CN101782102A true CN101782102A (en) | 2010-07-21 |
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CN201019102005A Pending CN101782102A (en) | 2010-02-08 | 2010-02-08 | Method for adjusting lift range of eccentric wheel mechanism and eccentric wheel mechanism using same |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102147990A (en) * | 2011-03-08 | 2011-08-10 | 天津理工大学 | Loading device for simulating mechanical environment of vertebral body |
CN102456284A (en) * | 2011-11-17 | 2012-05-16 | 浙江向阳花教学器材有限公司 | Spring oscillator device |
-
2010
- 2010-02-08 CN CN201019102005A patent/CN101782102A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102147990A (en) * | 2011-03-08 | 2011-08-10 | 天津理工大学 | Loading device for simulating mechanical environment of vertebral body |
CN102147990B (en) * | 2011-03-08 | 2012-08-29 | 天津理工大学 | Loading device for simulating mechanical environment of vertebral body |
CN102456284A (en) * | 2011-11-17 | 2012-05-16 | 浙江向阳花教学器材有限公司 | Spring oscillator device |
CN102456284B (en) * | 2011-11-17 | 2013-06-26 | 浙江向阳花教学器材有限公司 | Spring oscillator device |
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Open date: 20100721 |