CN201843964U - Double-shaft intermittent linkage device - Google Patents
Double-shaft intermittent linkage device Download PDFInfo
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- CN201843964U CN201843964U CN2010206034189U CN201020603418U CN201843964U CN 201843964 U CN201843964 U CN 201843964U CN 2010206034189 U CN2010206034189 U CN 2010206034189U CN 201020603418 U CN201020603418 U CN 201020603418U CN 201843964 U CN201843964 U CN 201843964U
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Abstract
The utility model discloses a double-shaft intermittent linkage device which comprises a base, as well as a first shaft and a driving device thereof, a second shaft and a speed reduction device thereof, a first rotating body, a one-way backstop mechanism and a mechanical sine mechanism, wherein the axis of revolution of the second shaft is the same as the axis of revolution of the first shaft, and the axis of revolution is recorded as a pivot axis; the first rotating body is fixedly connected with the first shaft and fixedly connected on a housing of the speed reduction device; the one-way backstop mechanism is configured at the input end of the second shaft, arranged on the base and used for one-way locking of the revolution of the second shaft; and an output shaft of the mechanical sine mechanism is used for connecting with a part to be driven, and an input shaft is connected with the output end of the second shaft. The double-shaft intermittent linkage device has compact structure and less transmission links, can save the manufacturing cost and the maintenance cost, and can ensure the reliability of operation and higher transmission precision.
Description
Technical field
The utility model relates to a kind of twin shaft gap linkage, is a kind of being mainly used on the solar tracking equipment to follow the tracks of the device of the sun.
Background technique
Relate to the equipment of solar tracking, be embodied in such as Chinese No. 911032479, No. 981157122 and No. 011241764 utility application, and No. 2007201583065, on No. 2007201583050 utility model patents, these patent documentations have provided detailed explanation to the principle of solar tracking, the principle of the method institute foundation of the synchronous sun tracking that provides of mandate text of No. 981157122 utility model patent of China wherein, be present solar synchronization tracking device the principle generally used, just need to form an axle and a mechanism of revising the sine function tracking sun that follows the tracks of solar hour angle, make the sunlight direct projection to collector; The condition that realizes tracking synchronously is that the operation axis of tracking hour angle is parallel with the earth's axis, and the axis of following the tracks of the operation of declination angle is vertical with the hour angle of the earth's axis and the sun.No. 011241764 utility application of China then deeply analyzed the corresponding relation between time and day visual gauge rule, and the change in location rule of the sun and the earth, and these natural laws are natural laws of solar tracking equipment designing institute foundation.In addition, " solar thermal utilization " elaboration then more detailed, more standard that China Science Tech Publishing House published on July 1st, 2009 the above-mentioned natural law, the above-mentioned No. 981157122 disclosed methods of utility model patent then are the concrete explainations to this natural law.
On sun synchronous tracking equipment, the deficiency of tracking equipment before No. 981157122 utility model patent of China set forth (having comprised No. 911032479 utility application of China), and a kind of energy source station specifically disclosed, the drive part of this energy source station has used two supports, and made up an A axle that is parallel to the earth's axis based on these two supports, its structural type causes this energy source station long partially at A axle axial dimension, and collector is subject to the physical dimension of one of them support, from transmission principle, another support also is difficult to accomplish miniaturization, makes that its overall structure is huge.In addition, the transmission link of the drive unit of this energy source station part is many, and some mechanism or kinematic pair are had than higher technical requirements, certainly will cause the cost height, and maintainability performance is poor, and the whole transmission accuracy of too much transmission ring festival-gathering influence.
No. 011241764 utility application of China then adopted two cover drive units to adjust and the angle of rotation adjustment correspondingly to carry out the elevation angle, but its structure is still complicated partially, realizes that difficulty is bigger, and volume is also bigger, adjusts also inconvenient.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of compact structure, and the device that the twin shaft that transmission link is few intermittently links with saving manufacturing, maintenance cost, and guarantees reliability of operation and higher transmission accuracy.
The utility model is by the following technical solutions:
This model utility twin shaft is linkage intermittently, comprises base, and it also comprises:
First and drive unit;
Second and speed reducer, this rotational axis of second is identical with described first rotational axis, remembers that this rotational axis is a pivotal line;
First rotor is fixed on described first and be fixed on the shell of described speed reducer;
Unidirectional stopping mechanism is configured in described second input end and is installed on the described base, is used for second rotating monodirectional locking; And
The machinery sine generator scotch yoke, its output shaft is used to connect part to be driven, and input shaft then connects described second output terminal.
Twin shaft linkage at intermittence according to technical solutions of the utility model is used substantially from it, and first rotor is followed the tracks of the i.e. variation of " hour angle " of rotation of the earth.The sine generator scotch yoke that is complementary by single direction locking mechanism and speed reducer drives the i.e. variation at " declination angle " of revolution that normal axis is followed the tracks of the earth.
First forms of motion does not partly have the difference of essence with the main drive of present some tracking means, all be to produce a clockwise and anticlockwise, if just be defined as and change daytime, then be counter-rotating evening, be subjected to its first rotor that directly drives then to have identical forms of motion so, correspondingly, second seat shell in other words body part also follow first rotation.Coupling ground is configured in described second input end and is installed in the monodirectional locking that unidirectional stopping mechanism on the described base is used for described speed reducer, and when it locked, corresponding mechanical sine generator scotch yoke will be driven; During second counter-rotating, unlock, so mechanical sine generator scotch yoke just can not be driven, and second and speed reducer rotate synchronously, do not form relative movement, the position of machinery sine generator scotch yoke remains unchanged, second day, mechanical sine generator scotch yoke will be driven from current location, thereby, just satisfy the form needs that mechanical sine generator scotch yoke is intermittently driven, guaranteed the driven connecting of mechanical sine generator scotch yoke.On the whole, the transmission link of the drive part of this device is far fewer than the transmission link of arbitrary existing sun tracker, and Transmitted chains is short, has reduced driving error greatly, and has reduced and safeguarded link.With a cover motor driving, manufacturing and maintenance cost have been reduced.
The machinery sine generator scotch yoke then is the mechanical mechanism that produces sinusoidal wave forms of motion, and the Changing Pattern at declination angle is specifically illustrated for background technique part institute when meeting the earth and revolving around the sun.
In multiple mechanical sine generator scotch yoke, preferred a kind of structure is set forth.
Described mechanical sine generator scotch yoke comprises:
Second rotor, its pedestal partly are installed on described first rotor, and present body portion is equipped with the driven shaft of axis normal in described pivotal line, and the plane that note driven shaft axis and pivotal line belong to together is a datum plane;
First transmission unit is mainly formed by first member that is installed on described second one end and second member that is installed on driven shaft one end, is used for second transmission with described driven shaft; And the end face that is in reverse to driven shaft of second member is for driving the plane, and the angle of the normal on this plane and driven shaft axis is 23 ° 26 ' 21 " or 11 ° 43 ' 11 ";
Normal axis, this axle bed is driven in first rotor, and the rotational axis of this axle perpendicular to described datum plane and with the axes intersect of driven shaft; And
Second transmission unit, mainly by described second member be installed on the described normal axis and act on the formed friction pair of the 3rd member on described driving plane, swing in the plane that with the normal axis axis is normal to drive the 3rd member.
On the basis of above-mentioned base case, those skilled in the art can select or make up following technological means:
Above-mentioned twin shaft is linkage intermittently, and described the 3rd member is perpendicular to described normal axis and is parallel to the member that drives the plane that the 3rd member and described normal axis form cross axle.
Above-mentioned twin shaft is linkage intermittently, and described the 3rd member two ends are provided with the roller that forms rolling friction pair with described driving plane.
Above-mentioned twin shaft is linkage intermittently, and described normal axis two ends are provided with the flange that is used to connect device to be driven.
Above-mentioned twin shaft is linkage intermittently, and the other end of described driven shaft is equipped with pointer, and is furnished with the dial plate of this pointer on described first rotor.
Above-mentioned twin shaft is linkage intermittently, and described first transmission unit is preferably the bevel-gear sett that is meshing with each other and forms 90 ° of transmissions and forms.
Above-mentioned twin shaft is linkage intermittently, and described unidirectional stopping mechanism is a free wheel device; And the housing of this free wheel device is installed on the described base.
Above-mentioned twin shaft is linkage intermittently, and described pivotal line is local latitude with the angle of base base plane on the base of configuration.
Above-mentioned twin shaft is linkage intermittently, and described first rotor is between first and second.
Further, be further described below in conjunction with the technological scheme of Figure of description model utility.
Description of drawings
Fig. 1 is the sectional structure schematic representation according to a kind of twin shaft linkage at intermittence of technical solutions of the utility model.
Fig. 2 is the N-N sectional view of Fig. 1.
Fig. 3 is the technology path figure of the utility model institute foundation.
Among the figure: 1, clockwise and anticlockwise motor, 2, main speed reduction box, 3, bearing, 4, bearing, 5, casing, 6, bearing, 7, bevel gear wheel, 8, bevel pinion, 9, bearing, 10, bearing, 11, supplementary reduction, 12, free wheel device, 13, base, 14, flange, 15, lock bolt, 16, gland, 17, bearing, 18, the cross output shaft, 19, pointer, 20, dial, 21, bearing, 22, bearing.
Embodiment
With reference to Figure of description 1 above-mentioned twin shaft linkage at intermittence, it shows the intermittently base case of linkage of a kind of twin shaft, comprises base 13, and it also comprises:
First and drive unit;
Second and speed reducer, this rotational axis of second is identical with described first rotational axis, remembers that this rotational axis is a pivotal line;
First rotor is fixed on described first and be fixed on the shell of described speed reducer;
Unidirectional stopping mechanism is configured in described second input end and is installed on the described base, is used for second rotating monodirectional locking; And
The machinery sine generator scotch yoke, its output shaft is used to connect part to be driven, and input shaft then connects described second output terminal.
For sinusoidal driving mechanism, all can use in this programme, the employed mechanical sine generator scotch yoke of above-mentioned base case has been known statement, compact structure, transmission accuracy are also high, satisfy the rigidity needs of solar tracking.
Preferably, described mechanical sine generator scotch yoke comprises:
Second rotor, its pedestal partly are installed on described first rotor, and present body portion is equipped with the driven shaft of axis normal in described pivotal line, and the plane that note driven shaft axis and pivotal line belong to together is a datum plane;
First transmission unit is mainly formed by first member that is installed on described second one end and second member that is installed on driven shaft one end, is used for second transmission with described driven shaft; And the end face that is in reverse to driven shaft of second member is for driving the plane, and the angle of the normal on this plane and driven shaft axis is 23 ° 26 ' 21 " or 11 ° 43 ' 11 ";
Normal axis, this axle bed is driven in first rotor, and the rotational axis of this axle perpendicular to described datum plane and with the axes intersect of driven shaft; And
Second transmission unit, mainly by described second member be installed on the described normal axis and act on the formed friction pair of the 3rd member on described driving plane, swing in the plane that with the normal axis axis is normal to drive the 3rd member.
This programme has adopted the plane of a relative tilt to drive, it is a kind of specific drive form, the 3rd member is fixed on the normal axis, can not follow second member to rotate, said driving is that the variation by the plane of the said relative tilt of second member makes the 3rd member produce swing, and the 3rd member of swing has just driven the rotation of normal axis.Obvious a bit is, the above-mentioned drive form of clinoplain makes normal axis form the sinusoidal wave forms of motion that rotates just, just in time consistent with the revolve around the sun variation at declination angle of the earth.The resultant motion of first motion and mechanical sine generator scotch yoke, its output flange have formed the accurate tracking to the sun.
In addition, device is on only be the assurance of velocity ratio in the assurance of forms of motion, and the selection by mechanical driving part is easy to guarantee.Several geometry parameters that this device requires to guarantee all are vertical and special angle, are easy to guarantee from machining and fit on.
Reflected two kinds of application about the angle of the normal that drives the plane and driven shaft axis is actual, first kind is to be 23 ° 26 ' 21 in said angle " condition under, require photovoltaic battery panel perpendicular to sunlight; Another kind then is that said angle is 11 ° 43 ' 11 " condition under, when concentration solar generating is followed the tracks of, utilize solar angle equal the reflection angle principle with sunlight reflected to condenser; The rotating speed that two classes were used first week also has different requirements, and the latter equals the former half.
In view of mechanical structure of the present utility model, physical dimension only limits to drive part, and its drive part does not produce axle or the spiral arm than length, and physical dimension reduces greatly, has guaranteed the compactedness requirement of structure.
For said drive unit, can adopt clockwise and anticlockwise motor 1 and dispose the form of main speed reduction box 2, can select common motor for use, also can select actuating motor or the stepper motor that accurately to control for said clockwise and anticlockwise motor, certainly, the motor that preferably can accurately control of this programme.Selection for main speed reduction box, then based on transmission accuracy and target velocity ratio, the target velocity ratio then takes into full account first rotating speed, first angular velocity should be 360 ° of ÷ 24h=15 °/h=15 when being used for the reception type and using, and "/s, said angular velocity then is 7.5 "/s=7.5 °/h when being used for reflection type and using.
For mechanical sine generator scotch yoke, all can use in this programme, the various forms of mechanical sine generator scotch yoke differs one for example.Second by transmission unit and mechanical sine generator scotch yoke coupling, the angle of output flange is changed in a standard rotates structure in 360 ° of examples in the year.
About speed reducer, described second more then is status requirement, first coaxality with second should be less than 0.02mm, guarantee the reliability of use, from transmission, driven shaft needs lower rotating speed, reference value then is standard year, the assurance form then is the drive part based on first transmission unit, and certainly, simple transmission is that we want from simplifying configuration aspects, this programme also can adopt it, this class transmission unit wants to have bigger velocity ratio can compare difficulty, has only a small amount of mechanism to accomplish, such as worm screw modiolus mechanism, for this reason, first transmission unit to this basis is the velocity ratio that reduces himself, can be compound other drive part, the output speed that only needs to guarantee second member meets the demands and gets final product.Here the transmission unit of indication can be a transmission for the clear self-defined title that characterizes drive part, also can be driving mechanism, can also be transmission device.Further, gear mechanism can be selected in said transmission unit, the simplest a kind of structure then is that described first transmission unit is preferably the bevel-gear sett that is meshing with each other and forms 90 ° of transmissions and forms in this type of mechanism, so just require two members to have bigger velocity ratio, so best mode remains not simple employing transmission, answer the outer drive part of plus, the bevel pinion 8 that can be installed on first drives a speed reducer, described second member is then as the output of this speed reducer, certainly, be to cooperate bevel gear wheel 7 and exist when emphasizing bevel pinion, as adopt speed reducer, and then need not to emphasize bevel pinion, cylindrical gears just can meet the demands, certainly, the transmission of corresponding speed reducer also will comprise the change of transmission direction.
As for first rotor, adopt case structure, the structural type for generally adopting for protection transmission unit branch in the mechanical field as the casing among Fig. 15, is used to hold the main drive part of this linkage.Here a seat shell that it is noted that first, casing and second is synchronized with the movement, and simply is fixedly connected and just can realizes, especially said shell directly is fitting seat with the casing, repeats no more below these simple mechanical connections.
Further, as for second rotor, its pedestal part is then followed first rotor and is rotated synchronously, and so said driven shaft then is the core of transmission, accepts top said first transmission unit, will be understood that it is the output shaft of first transmission unit.
The end face that is in reverse to driven shaft about second member is the driving plane, according to different application, the angle of the normal on this plane and driven shaft axis is that the condition of 23 ° 26 ' 21 " and 11 ° 43 ' 11 " is necessary, relate to this twin shaft intermittently linkage be installed as satisfy sun synchronous tracking requirement also need consider the installation of base, under the installment state, pivotal line should be local latitude with the angle of the normal plane of locality, base can be the base of fixed structure form, mounting structure depends on pivotal line, base also can be made adjustable base, it is nothing but the problem that can adjust the base luffing angle, belong to a kind of simple mechanical structure, at this moment, the structure and the mounting structure that then depend on base.A kind of selection then is described pivotal line on the base of configuration and the angle of base base plane is local latitude, this situation then requires base to carry out classification design according to the institute mounting point, but this structure brings convenience then for client's installation, for serving client's purpose, this structure belongs to a kind of preferable design.
As for the plane drive form, considered here is the relation of said driving plane and the 3rd member, at first, the 3rd member is fixed on the normal axis, and normal axis then is installed on the casing 5, the 3rd member can not followed second member and be done along circumferential the moving of second member, but it is secondary to form a swing, formed be along second members shaft to driving, certainly, second element structure is uncertain, in this section circumferentially or axially more accurately with reference to shoulding be driven shaft.About driving the relation of plane and the 3rd member, the simplest direct contact matching no more than second member and the 3rd member, form sliding friction, but friction factor is bigger comparatively speaking, and certainly, two member relative movement are slow, to a certain extent, be similar to static friction, the object that is worth this device carrying may be bigger, causes the frictional force can be bigger.Therefore this programme tends to adopt the form of rolling friction, and rolling friction also has a variety of forms, and a kind of preferable selection is that described the 3rd member two ends are provided with the roller that forms rolling friction pair with described driving plane, can adopt bearing shown in Figure 16.Also having a kind of preferable selection then is at the 3rd member and the position that drives plane contact ball to be set, and ball partly embeds the 3rd member, is a kind of simpler structure.
In addition, it should be noted that said normal axis, with reference to the cross output shaft 18 in the Figure of description 2, a part that constitutes the cross output shaft is said normal axis, and another part then is said the 3rd member, the circle of the band hatching at indication cross output shaft middle part in the accompanying drawing 2.Wherein, the selection of bearing saddle bore the best of normal axis is to be arranged on the described casing.
Accept the epimere explanation, described the 3rd member is perpendicular to described normal axis and is parallel to the member that drives the plane that the 3rd member and described normal axis form cross axle, guarantee to drive the stationarity that the plane drives.Certainly, this programme also can adopt the stub axle form, and just the 3rd member exists only in one side of normal axis, because there is the pressure of institute's bearing material, also can guarantee to drive the stabilized driving on plane to a certain extent.Linkage, described normal axis two ends are provided with the flange that is used to connect device to be driven.
Preferably, described first rotor is convenient to the simplified structure design between first and second.
Being incorporated in this programme for said individual event thrust mechanism, is a kind of simple application, and this type of mechanism in the mechanical field all is operable from see in form, preferably, described unidirectional stopping mechanism is a free wheel device, is convenient to the standardization buying, and it is also convenient to safeguard.
Further, preferably, the housing of described free wheel device is installed on the described base.
For ease of maintenance and debugging, the other end of described driven shaft is equipped with pointer, and is furnished with the dial plate of this pointer on described first rotor, uses when being used for Installation and Debugging.
Claims (10)
1. a twin shaft linkage at intermittence comprises base, it is characterized in that it also comprises:
First and drive unit;
Second and speed reducer, this rotational axis of second is identical with described first rotational axis, remembers that this rotational axis is a pivotal line;
First rotor is fixed on described first and be fixed on the shell of described speed reducer;
Unidirectional stopping mechanism is configured in described second input end and is installed on the described base, is used for second rotating monodirectional locking; And
The machinery sine generator scotch yoke, its output shaft is used to connect part to be driven, and input shaft then connects described second output terminal.
2. twin shaft according to claim 1 is locking framework intermittently, and it is characterized in that: described mechanical sine generator scotch yoke comprises:
Second rotor, its pedestal partly are installed on described first rotor, and present body portion is equipped with the driven shaft of axis normal in described pivotal line, and the plane that note driven shaft axis and pivotal line belong to together is a datum plane;
First transmission unit is mainly formed by first member that is installed on described second one end and second member that is installed on driven shaft one end, is used for second transmission with described driven shaft; And the end face that is in reverse to driven shaft of second member is for driving the plane, and the angle of the normal on this plane and driven shaft axis is 23 ° 26 ' 21 " or 11 ° 43 ' 11 ";
Normal axis, this axle bed is driven in first rotor, and the rotational axis of this axle perpendicular to described datum plane and with the axes intersect of driven shaft; And
Second transmission unit, mainly by described second member be installed on the described normal axis and act on the formed friction pair of the 3rd member on described driving plane, swing in the plane that with the normal axis axis is normal to drive the 3rd member.
3. twin shaft according to claim 2 is linkage intermittently, it is characterized in that: described the 3rd member is perpendicular to described normal axis and is parallel to the member that drives the plane that the 3rd member and described normal axis form cross axle.
4. twin shaft according to claim 3 is linkage intermittently, it is characterized in that: described the 3rd member two ends are provided with the roller that forms rolling friction pair with described driving plane.
5. according to the arbitrary described twin shaft linkage at intermittence of claim 2 to 4, it is characterized in that: described normal axis two ends are provided with the flange that is used to connect device to be driven.
6. twin shaft according to claim 5 is linkage intermittently, and it is characterized in that: the other end of described driven shaft is equipped with pointer, and is furnished with the dial plate of this pointer on described first rotor.
7. twin shaft according to claim 6 is linkage intermittently, it is characterized in that: described first transmission unit is preferably the bevel-gear sett that is meshing with each other and forms 90 ° of transmissions and forms.
8. twin shaft according to claim 7 is linkage intermittently, and it is characterized in that: described unidirectional stopping mechanism is a free wheel device; And the housing of this free wheel device is installed on the described base.
9. twin shaft according to claim 1 is linkage intermittently, it is characterized in that: described pivotal line is local latitude with the angle of base base plane on the base of configuration.
10. twin shaft according to claim 1 is linkage intermittently, and it is characterized in that: described first rotor is between first and second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206034189U CN201843964U (en) | 2010-11-12 | 2010-11-12 | Double-shaft intermittent linkage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206034189U CN201843964U (en) | 2010-11-12 | 2010-11-12 | Double-shaft intermittent linkage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843964U true CN201843964U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206034189U Expired - Lifetime CN201843964U (en) | 2010-11-12 | 2010-11-12 | Double-shaft intermittent linkage device |
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| CN (1) | CN201843964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984383A (en) * | 2010-11-12 | 2011-03-09 | 靳宗宝 | Double-shaft intermittent linkage |
-
2010
- 2010-11-12 CN CN2010206034189U patent/CN201843964U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984383A (en) * | 2010-11-12 | 2011-03-09 | 靳宗宝 | Double-shaft intermittent linkage |
| CN101984383B (en) * | 2010-11-12 | 2012-05-23 | 靳宗宝 | Double-shaft intermittent linkage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20120523 |