CN108343712A - Encased differential gear train device and mechanical equipment - Google Patents
Encased differential gear train device and mechanical equipment Download PDFInfo
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- CN108343712A CN108343712A CN201710054526.1A CN201710054526A CN108343712A CN 108343712 A CN108343712 A CN 108343712A CN 201710054526 A CN201710054526 A CN 201710054526A CN 108343712 A CN108343712 A CN 108343712A
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- centre wheel
- bigeminy
- planet carrier
- ring gear
- gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 81
- 206010015856 Extrasystoles Diseases 0.000 claims abstract description 79
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000033001 locomotion Effects 0.000 description 17
- 150000001875 compounds Chemical class 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
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- 238000004364 calculation method Methods 0.000 description 1
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- 235000008434 ginseng Nutrition 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/36—Toothed gearings for conveying rotary motion with gears having orbital motion with two central gears coupled by intermeshing orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention relates to gear transmission technology field, more particularly to a kind of encased differential gear train device and mechanical equipment.The encased differential gear train device of the present invention, including closing means and original mechanism, closing means include the first centre wheel, the first planetary gear, first planet carrier and the first ring gear, and original mechanism includes the second centre wheel, the second planetary gear, the second planet carrier and the second ring gear, wherein：First centre wheel and the second center-wheel arbor to form bigeminy centre wheel to connecting firmly, bigeminy centre wheel around rotation axis rotatably arranged with；First planet carrier and the second planet carrier shaft to form bigeminy planet carrier to connecting firmly, bigeminy planet carrier around rotation axis rotatably arranged with；First ring gear be fixedly installed, the second ring gear around rotation axis rotatably arranged with.The present invention can realize the transmission ratio of bigger.
Description
Technical field
The present invention relates to gear transmission technology field, more particularly to a kind of encased differential gear train device and machinery are set
It is standby.
Background technology
Planetary Gear Transmission is a kind of common gear-driven form, and presently, there are single-pinion planetary gear transmission mechanism, strings
Join the multiple types such as planetary gear mechanism and encased differential gear train mechanism.Wherein, closed planetary gear passes
Motivation structure refers to carrying out a common fixed axis gear transmission or simple planetary transmission with a differential planet transmission
Closed connection is formed by planetary gear mechanism, in general, by the differential planetary in encased differential gear train mechanism
Gear drive is known as original mechanism, and the common fixed axis gear transmission for wherein playing sealing process or simple planetary transmission are claimed
For closing means.
Fig. 1 show a kind of existing encased differential gear train mechanism.As shown in Figure 1, its closing means 1 ' and original
Two centre wheels (a1, a2) of beginning mechanism 2 ' axially connect firmly, the planet carrier x1 of closing means 1 ' and the ring gear b2 of original mechanism
It connects firmly, the ring gear b1 fixed settings of closing means 1 ', two centre wheels (a1, a2) axially connected firmly connect with input shaft A, former
The planet carrier x1 of beginning mechanism 1 ' is connect with output shaft B.For the convenience of description, axially connect firmly two centre wheels (a1, a2) are claimed
For input component, the planet carrier x1 connected firmly and ring gear b2 are known as auxiliary member, the planet carrier x1 of original mechanism 1 ' is known as exporting
The ring gear b1 of fixed setting is known as supporting member by part.
When the encased differential gear train mechanism works, the movement of input shaft A is on the one hand straight by input component (a1, a2)
The centre wheel a2 for passing to original mechanism 2 ' is met, a movement ω is obtaineda2, on the other hand passed simultaneously by input component (a1, a2)
The planet carrier x1 of closing means 1 ' is passed, and planet carrier x1 is moved ωx1Pass to the ring gear b2 (ω of original mechanism 2 'b2
=ωx1), finally, two movement ωa2And ωb2It is compound at the planet carrier x2 of original mechanism 2 ' to become an output movement ωx2,
Mechanism to be driven is passed to through output shaft B.
By above-mentioned transfer principle it is found that this encased differential gear train mechanism, is transferred to planet carrier x2 (outputs
Part) at two movement ωa2And ωb2Rotation direction it is identical, planet carrier x2 is in ωa2And ωb2Compound action under will produce compared with
High rotating speed, this can reduce the ratio of output rotating speed and input speed, that is, reduce transmission ratio.So this closed planet tooth
Wheel drive mechanism still has the characteristics that transmission is smaller, it is difficult to meet the application demand of more high transmission ratio.
Invention content
The present invention is intended to provide a kind of novel encased differential gear train mechanism, transmission ratio bigger disclosure satisfy that
The application demand of more high transmission ratio.
To achieve the goals above, the present invention provides a kind of encased differential gear train devices, including rotation axis
Closing means and original mechanism conllinear and be axially set up in parallel, closing means include the first centre wheel, the first planetary gear, first
Planet carrier and the first ring gear, original mechanism include the second centre wheel, the second planetary gear, the second planet carrier and the second ring gear,
Wherein：First centre wheel and the second center-wheel arbor to form bigeminy centre wheel to connecting firmly, and bigeminy centre wheel is rotatable around rotation axis
Ground is arranged；First planet carrier and the second planet carrier shaft to form bigeminy planet carrier to connecting firmly, and bigeminy planet carrier can turn around rotation axis
It is arranged dynamicly；First ring gear be fixedly installed, the second ring gear around rotation axis rotatably arranged with.
Optionally, bigeminy centre wheel is set as input component, and the second ring gear is set as output.
Optionally, bigeminy planet carrier, which floats, is arranged；Alternatively, bigeminy planet carrier is rotatably supported in the first ring gear and
On two ring gears；Alternatively, bigeminy planet carrier is rotatably supported in the shaft of bigeminy centre wheel.
Optionally, the second ring gear is rotatably supported on the first ring gear.
Optionally, bigeminy centre wheel is a shared gear, and the first centre wheel and the second centre wheel are respectively to share gear
Axial first and it is second axial.
Optionally, closing means are different with the transmission ratio of original mechanism.
Optionally, the parameter of the first centre wheel and the second centre wheel is identical, the parameter of the first planetary gear and the second planetary gear
Difference, and the parameter of the first ring gear and the second ring gear is different.
Optionally, the parameter of the first planetary gear and the second planetary gear is identical, the parameter of the first centre wheel and the second centre wheel
Difference, and the parameter of the first ring gear and the second ring gear is different.
Optionally, the parameter of the first ring gear and the second ring gear is identical, the parameter of the first centre wheel and the second centre wheel
Difference, and the parameter of the first planetary gear and the second planetary gear is different.
Another aspect of the present invention additionally provides a kind of mechanical equipment comprising encased differential gear train dress of the invention
It sets.
In the present invention, encased differential gear train device includes two-stage planet transmission mechanism, and two-stage planet
Two center-wheel arbors of gear drive are to connecting firmly, and two planet carrier shafts of two-stage planet transmission mechanism are to connecting firmly, together
When two-stage planet transmission mechanism a ring gear fixed setting, this make the present invention encased differential gear train dress
It sets, carries out the rotation direction of two compound movements in transmission process at output on the contrary, to relative in output
The identical situation of two compound rotation directions moved of place's progress, can effectively reduce the rotating speed of output, increase transmission ratio,
And then the application demand of more high transmission ratio can be met.
By the way that exemplary embodiment of the present invention is described in detail referring to the drawings, other feature of the invention and
Its advantage will become apparent.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 shows a kind of transmission schematic diagram of existing encased differential gear train mechanism.
Fig. 2 shows the transmission schematic diagrams of the planet gear transmission device of first embodiment of the invention.
Fig. 3 shows the transmission schematic diagram of the planet gear transmission device of second embodiment of the invention.
Fig. 4 shows the transmission schematic diagram of the planet gear transmission device of third embodiment of the invention.
Fig. 5 shows the transmission schematic diagram of the planet gear transmission device of fourth embodiment of the invention.
In figure：
11, the first centre wheel；12, the first planetary gear；13, first planet carrier；14, the first ring gear；
21, the second centre wheel；22, the second planetary gear；23, the second planet carrier；24, the second ring gear；
3, bigeminy centre wheel；4, bigeminy planet carrier.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are in no development creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, the orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
Signified device or element must have a particular orientation or with specific azimuth configuration and operations with hint, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
In the description of the present invention, it is to be understood that, parts are limited using the words such as " first ", " second ", only
It is merely for convenience of distinguishing corresponding parts, there is no Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore not
It can be interpreted as limiting the scope of the invention.
Fig. 2-5 shows four embodiments of the present invention.With reference to Fig. 2-5, closed planetary gear provided by the present invention
Transmission device, including rotation axis is conllinear and the closing means and original mechanism that are axially set up in parallel, closing means include first
Centre wheel 11, the first planetary gear 12, first planet carrier 13 and the first ring gear 14, original mechanism include the second centre wheel 21, the
Two planetary gears 22, the second planet carrier 23 and the second ring gear 24, wherein：First centre wheel 11 and the second centre wheel 21 axially connect firmly
Form bigeminy centre wheel 3, bigeminy centre wheel 3 around rotation axis rotatably arranged with；First planet carrier 13 and the second planet carrier 23
Axially connect firmly to form bigeminy planet carrier 4, bigeminy planet carrier 4 around rotation axis rotatably arranged with；The fixation of first ring gear 14 is set
Set, the second ring gear 24 around rotation axis rotatably arranged with.
The encased differential gear train device of the present invention, including it is axial solid by the first centre wheel 11 and the second centre wheel 21
Join the bigeminy centre wheel 3 formed, by first planet carrier 13 and the second planet carrier 23 it is axial connect firmly the bigeminy planet carrier 4 formed, with
First centre wheel 11 and 13 corresponding first planetary gear of first planet carrier, 12 and first ring gear 14 and with the second centre wheel 21
With 22 and second ring gear 24 of the second 23 corresponding second planetary gear of planet carrier, and the first ring gear 14 is fixedly installed, this makes
Carried out at output in transmission process two compound movements rotation direction on the contrary, to relative at output into
The identical situation of two compound rotation directions moved of row, can effectively reduce the rotating speed of output, increase transmission ratio, in turn
The application demand encased differential gear train device of more high transmission ratio can be met.
The present invention is described further with reference to embodiment shown in Fig. 2-5.
Fig. 2 shows one embodiment of the present invention.As shown in Fig. 2, in this embodiment, closed planetary gear passes
Dynamic device includes closing means and original mechanism, wherein closing means include the first centre wheel 11, the first planetary gear 12, first
Planet carrier 13 and the first ring gear 14, the first planetary gear 12 are rotatablely arranged in first planet carrier 13 and are engaged in first
Between heart wheel 11 and the first ring gear 14；Original mechanism includes the second centre wheel 21, the second planetary gear 22,23 and of the second planet carrier
Second ring gear 24, the second planetary gear 22 are rotatablely arranged on the second planet carrier 23 and are engaged in the second centre wheel 21 and
Between two ring gears 24.
As shown in Figure 2, the closing means of the embodiment and the rotation axis of original mechanism are conllinear, i.e. the first centre wheel 11,
The central axis of first ring gear 14, the second centre wheel 21 and the second ring gear 14 is conllinear, moreover, closing means and original mechanism
It is sequentially arranged (being from left to right to be sequentially arranged in Fig. 1) along rotation axis so that be set up in parallel both along axial.
In order to enable the encased differential gear train device of the embodiment has the transmission ratio of bigger, as shown in Fig. 2,
In the embodiment, the first centre wheel 11 and the second centre wheel 21 is axial connects firmly to form bigeminy centre wheel 3, first planet carrier 13 and the
Two planet carrier 23 is axial to be connected firmly to form bigeminy planet carrier 4, also, bigeminy centre wheel 3, bigeminy planet carrier 4 and the second ring gear
24 around rotation axis rotatably arranged with the fixed setting of the first ring gear 14.For the convenience of description, bigeminy planet carrier 4 is claimed
For auxiliary member, the first ring gear 14 of fixed setting is known as supporting member.
Due to relative to existing encased differential gear train mechanism shown in FIG. 1, the Planetary Gear Transmission of the embodiment
Device no longer connects the ring gear of the planet carrier of closing means and original mechanism to form auxiliary member, but by the row of closing means
Carrier (i.e. first planet carrier 13) connect to form auxiliary member with the planet carrier (i.e. the second planet carrier 23) of original mechanism, therefore,
The rotation direction that two compound movements are carried out at output is no longer identical, and changeabout, this makes output at two
There can be lower rotating speed under the compound action of movement, so, the planet gear transmission device of the embodiment is relative to existing
Encased differential gear train mechanism can further increase transmission ratio.
Moreover, using the closing mode of the embodiment, in transmission process, closing means and original mechanism can be distinguished
It works according to the kind of drive of respective power loss minimum, therefore, the encased differential gear train device of the embodiment,
Not only it is driven bigger, transmission efficiency is also higher.In addition, connecting firmly the first centre wheel 11 and the second centre wheel 21 are axial and by the
One planet carrier 13 is axially connected firmly with the second planet carrier 23, can also effectively reduce the body of entire encased differential gear train device
Product so that the structure of encased differential gear train device is simpler compact.
In this embodiment, it sets bigeminy centre wheel 3 to input component, such as bigeminy centre wheel 3 can be passed through input
Axis and actuating unit be connected by power, and set the second ring gear 24 to output, such as the second ring gear 24 can be passed through
Output shaft and mechanism be connected by power to be driven.
Then the transmission process of the encased differential gear train device of the embodiment is：When dynamic input, as defeated
The bigeminy centre wheel 3 for entering part rotates, and the second centre wheel 21 of bigeminy centre wheel 3 by the second planetary gear 22 to the second ring gear
24 transmit a movement reversed with bigeminy centre wheel 3 (with ω22It indicates)；The first centre wheel 11 of bigeminy centre wheel 3 is logical simultaneously
It crosses the first planetary gear 12 and drives the movement in the same direction of bigeminy planet carrier 4, and bigeminy planet carrier 4 is by the fortune in the same direction with bigeminy centre wheel 3
It moves (with ω4Indicate) it is transferred to the second ring gear 24；Finally, the second ring gear 24 is by the second planetary gear 22 and bigeminy planet carrier 4
Two movements transmitted carry out 14 rotary motion of the compound output one relative to the first ring gear.
By above-mentioned transmission process it is found that in the transmission process of the encased differential gear train device of the embodiment,
The movement ω that two compound movements are respectively in the same direction with bigeminy centre wheel 3 is carried out at second ring gear 24 (output)22
An and movement ω with bigeminy centre wheel 3 reversely4, the opposite movement of the two rotation directions at the second ring gear 24 into
Row differential is compound so that and the rotating speed that the second ring gear 24 is exported is smaller, therefore, the encased differential gear train of the embodiment
The ratio of device, input speed and output rotating speed is larger, that is, is driven bigger.
According to above-mentioned transmission process, the gear ratio calculation formula of the encased differential gear train device of the embodiment can be obtained
For：
In formula, Z11It is the number of teeth of the first centre wheel 11, Z14It is the number of teeth of the first ring gear 14, Z21It is the second centre wheel 21
The number of teeth, Z24It is the number of teeth of the second ring gear 14.
By above-mentioned transmission ratio formula it is found that working as Z11×Z24-Z14×Z21Closer to 0 when, i.e. first order Planetary Gear Transmission machine
The transmission ratio of structure and the transmission ratio of second level planetary gear mechanism closer to when, the embodiment encased differential gear train
The transmission ratio that device is realized is bigger, and with two-stage planet transmission mechanism respectively transmission ratio concrete numerical value size without
Close, so, no matter the transmission ratio of first stage planetary gear transmission mechanism and the transmission ratio of second level planetary gear mechanism
It is respectively how many, larger transmission ratio can be formed as long as long as the two numerical value, this is convenient for using the equal very little of two stage gear ratios
And planetary gear mechanism relatively is driven to realize larger transmission ratio, in the premise for obtaining larger gear range
Under be further simplified structure.
So in this embodiment, closing means and original mechanism, which are set as having, to be closer to but different transmission ratios,
The encased differential gear train device of the embodiment can be enable to realize more smoothly transmission process in this way, further increased
Its big transmission ratio, and it is further simplified its structure.
And in order to make closing means and original mechanism that there is different transmission ratios, in this embodiment, the first centre wheel 11
It is identical with the parameter of the second centre wheel 21, and the first planetary gear 12 is different with the parameter of the second planetary gear 22, the first ring gear 14
It is also different with the parameter of the second ring gear 24.In this way, closing means are different with the transmission ratio of original mechanism, not only may be implemented to have
There is the transmission process of more large transmission ratio, bigeminy planet carrier 4 can also be enable more reliably to transmit work(to the second ring gear 24
Rate prevents bigeminy planet carrier 4 from dallying, and realizes more smoothly transmission process.Moreover, by the first centre wheel 11 and the second centre wheel
21 are designed as that parameter is identical, due to the centre wheel without processing two different sizes, and can be more easily due to being based on this
Bigeminy centre wheel 3 is directly used as using a gear, and between two gears of omission for realizing the between centers axially connected firmly
Connection structure and the process that two gears link together, and hence it is also possible to simplify process, reduction is processed into
This, simplifies installation steps, and be conducive to the direct batch production of bigeminy centre wheel 3.
Certainly, to make closing means and original mechanism that there is different transmission ratios, it is not limited to above-mentioned set-up mode.
For example, as one of which alternative, the first row star-wheel 12 can be made identical with the parameter of the second planetary gear 22,
And keep the first centre wheel 11 different with the parameter of the second centre wheel 21, and the parameter of the first ring gear 14 and the second ring gear 24 is not
Together, the transmission ratio of two-stage planet transmission mechanism can also be made different in this way, and convenient for planetary used in the embodiment
Batch machining reduces processing cost.
For another example as wherein another alternative, the ginseng of the first ring gear 14 and the second ring gear 24 can also be made
Number is identical, and keeps the first centre wheel 11 different with the parameter of the second centre wheel 21, and the first planetary gear 12 and the second planetary gear 22
Parameter it is different, can equally make the transmission ratio of two-stage planet transmission mechanism different in this way, and convenient for used in the embodiment
The batch machining of ring gear reduces processing cost.
In addition, as shown in Figure 2, in this embodiment, bigeminy planet carrier 4, which floats, to be arranged, i.e., bigeminy planet carrier 4 does not support
In the other structures of encased differential gear train device.Due to can be omitted bigeminy planet carrier 4 and closed planetary gear
The components such as the bearing between transmission device other structures, therefore, the bigeminy planet carrier 4 for setting of floating can make closed planet
The structure of gear assembly is simpler compact, and manufacturing cost is lower, and the bigeminy planet carrier 4 of this setting of floating is with good
Good self-adaptation type, can effectively reduce the requirement to machining accuracy, further reduce the cost, and can realize and more steadily may be used
By ground transmission process, further improve the transmission performance of encased differential gear train device.
Certainly, in other embodiments of the invention, bigeminy planet carrier 4 can also use non-floating set-up mode.Below
The non-floating set-up mode of bigeminy planet carrier 4 will be illustrated by taking Fig. 3 and two embodiments shown in Fig. 4 as an example.
Fig. 3 shows second embodiment of the present invention.From the figure 3, it may be seen that, second implementation similar with first embodiment
The encased differential gear train device of example also includes by the first centre wheel 11 of closing means and the second center of original mechanism
Wheel 21 is axial to connect firmly the bigeminy centre wheel 3 to be formed and be rotatably arranged around rotation axis, by first planet carrier 13 and the second planet
Frame 23 is axial connect firmly the first ring gear 14 of the bigeminy planet carrier 4, fixed setting to be formed and be rotatably arranged around rotation axis with
And the second ring gear 24 being rotatably arranged around rotation axis.But it is different from the first embodiment, the bigeminy of the second embodiment
Planet carrier 4 no longer floats setting, but is rotatably supported in the shaft of bigeminy centre wheel 3, has in this way in bigeminy centre wheel 3
When power inputs, bigeminy planet carrier 4 can also rotate around rotation axis and transmit power to the second ring gear 24, specific to pass
Dynamic process and transmission principle are similar with first embodiment, are referred to first embodiment understanding, therefore, details are not described herein again.
Fig. 4 shows the third embodiment of the present invention.As shown in Figure 4, in this embodiment, similar with second embodiment
, the bigeminy planet carrier 4 of encased differential gear train device, which also no longer floats, to be arranged, but different from second embodiment,
In the 3rd embodiment, bigeminy planet carrier 4 is no longer supported in the shaft of bigeminy centre wheel 3, but is rotatably supported in
On one ring gear 14 and the second ring gear 24, specifically, from the figure 3, it may be seen that the first planet carrier 13 in bigeminy planet carrier 4 is rotatable
Ground is supported on the first ring gear 14, and the second planet carrier 23 in bigeminy planet carrier 4 is rotatably supported in the second ring gear 24
On.
In addition, as shown in figure 4, the 3rd embodiment is also differ in that with first embodiment and second embodiment,
In the 3rd embodiment, the second ring gear 24 is rotatably supported on the first ring gear 14, this makes the second ring gear 24
It can be used as the shell of encased differential gear train device simultaneously, internal other structures are protected, help to extend
The service life of other each structures, and special shell is set again due to may not need, structure is also simpler, cost
It is lower.
Similarly, the transmission principle and transmission process of the 3rd embodiment can also understand with reference to first embodiment, herein
Also it repeats no more.
Fig. 5 shows the 4th embodiment of the present invention.As shown in Figure 5, similar with first three embodiment, the 4th is real
The encased differential gear train device for applying example also includes bigeminy centre wheel 3 and bigeminy planet carrier 4；But not with first three embodiment
With, the bigeminy row centre wheel 3 of the fourth embodiment, which is no longer connected by two gears by between centers connection structure, to be formed, but straight
It connects and uses a shared gear, and axial first of gear and axial second part are shared not as the first centre wheel 11 using this
With the second centre wheel 21.
Compared with first three embodiment, which is arranged between two gears and due to can be omitted for real
The between centers connection structure that existing two gears axially connect firmly, therefore, structure is simpler compact, helps to further decrease closed
The volume of planet gear transmission device.
Wherein, axial first as the first centre wheel 11 and second axial as the second centre wheel 21, the two
Parameter can be identical or different, it is preferable that the two parameter is identical, in this way share Gear Processing it is simpler, processing cost is more
It is low, it is also more convenient for realizing mass production.
In summary four embodiments can be seen that the encased differential gear train device of the present invention, by the first center
Wheel 11 and the second centre wheel 21 axially connect firmly to form rotatable bigeminy centre wheel 3, by first planet carrier 13 and the second planet carrier
23 axially connect firmly to form rotatable bigeminy planet carrier 4, and the first ring gear 14 is fixedly installed, and can increase closed planet
The transmission ratio of gear assembly realizes the higher transmission process of transmission efficiency, and can make encased differential gear train
The structure of device is simpler compact, reduces occupied space, and it is wider to be advantageously implemented encased differential gear train device
General application.
It should be noted that, although aforementioned four embodiment is using bigeminy centre wheel 3 as input component and in second
Gear ring 24 is as illustrating for output, but based on the closing mode of the present invention, can also actually use in second
Gear ring 24 is used as input component and other I/O modes such as using bigeminy centre wheel 3 as output.And aforementioned four embodiment
It using bigeminy centre wheel 3 as input component and using the second ring gear 24 as output, is advantageous in that, relative to the second internal tooth
Circle 24 can reduce the rotating speed of the first planetary gear 12 and the second planetary gear 22, have as other I/O modes such as input components
Effect reduces vibration and the noise of encased differential gear train device, so that the encased differential gear train of the embodiment
Device can better adapt to the requirement of high rotating speed input, realize more high-revolving input.
Based on the encased differential gear train device of the present invention, the present invention also provides a kind of mechanical equipments comprising
The encased differential gear train device of the present invention.
The foregoing is merely exemplary embodiment of the present invention, are not intended to limit the invention, all spirit in the present invention
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of encased differential gear train device, which is characterized in that conllinear including rotation axis and be axially set up in parallel
Closing means and original mechanism, the closing means include the first centre wheel (11), the first planetary gear (12), first planet carrier
(13) and the first ring gear (14), the original mechanism include the second centre wheel (21), the second planetary gear (22), the second planet carrier
(23) and the second ring gear (24), wherein：First centre wheel (11) and second centre wheel (21) axially connect firmly to be formed
Bigeminy centre wheel (3), the bigeminy centre wheel (3) around the rotation axis rotatably arranged with；The first planet carrier (13)
It axially connects firmly to form bigeminy planet carrier (4) with second planet carrier (23), the bigeminy planet carrier (4) is around the rotation axis
Rotatably arranged with；First ring gear (14) fixed setting, second ring gear (24) can turn around the rotation axis
It is arranged dynamicly.
2. encased differential gear train device according to claim 1, which is characterized in that the bigeminy centre wheel (3)
It is set as input component, and second ring gear (24) is set as output.
3. encased differential gear train device according to claim 1, which is characterized in that the bigeminy planet carrier (4)
It floats and is arranged；Alternatively, the bigeminy planet carrier (4) is rotatably supported in first ring gear (14) and second internal tooth
It encloses on (24)；Alternatively, the bigeminy planet carrier (4) is rotatably supported in the shaft of the bigeminy centre wheel (3).
4. encased differential gear train device according to claim 1, which is characterized in that second ring gear (24)
It is rotatably supported on first ring gear (14).
5. encased differential gear train device according to claim 1, which is characterized in that the bigeminy centre wheel (3)
For a shared gear, first centre wheel (11) and second centre wheel (21) are respectively the axial direction of the shared gear
First and axially second.
6. according to any encased differential gear train devices of claim 1-5, which is characterized in that the closing means
It is different with the transmission ratio of the original mechanism.
7. encased differential gear train device according to claim 6, which is characterized in that first centre wheel (11)
It is identical with the parameter of the second centre wheel (21), and the parameter of first planetary gear (12) and second planetary gear (22)
Difference, and first ring gear (14) is different with the parameter of the second ring gear (24).
8. encased differential gear train device according to claim 6, which is characterized in that first planetary gear (12)
Identical with the parameter of the second planetary gear (22), the parameter of first centre wheel (11) and second centre wheel (21) is not
Together, and first ring gear (14) is different with the parameter of the second ring gear (24).
9. encased differential gear train device according to claim 6, which is characterized in that first ring gear (14)
Identical with the parameter of the second ring gear (24), the parameter of first centre wheel (11) and second centre wheel (21) is not
Together, and first planetary gear (12) is different with the parameter of the second planetary gear (22).
10. a kind of mechanical equipment, which is characterized in that include the encased differential gear train as described in claim 1-9 is any
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054526.1A CN108343712A (en) | 2017-01-24 | 2017-01-24 | Encased differential gear train device and mechanical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054526.1A CN108343712A (en) | 2017-01-24 | 2017-01-24 | Encased differential gear train device and mechanical equipment |
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| CN108343712A true CN108343712A (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710054526.1A Pending CN108343712A (en) | 2017-01-24 | 2017-01-24 | Encased differential gear train device and mechanical equipment |
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| CN (1) | CN108343712A (en) |
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| DE10161942A1 (en) * | 2001-12-17 | 2003-07-03 | Thomas Hirn | Planetary gear has teeth of two planet wheels of planet wheel pair offset in relation to each other by determined angle and is calculated by mathematical expression |
| RU2008139793A (en) * | 2008-10-08 | 2010-04-20 | ГОУ ВПО "Тульский государственный университет" (RU) | TWO SPEED PLANETARY TRANSMISSION |
| CN202091437U (en) * | 2011-05-25 | 2011-12-28 | 深圳市琛玛华夏科技有限公司 | Novel planetary speed reducer and geared motor |
| DE102011114656A1 (en) * | 2011-09-30 | 2013-04-04 | Daimler Ag | Gear box of control device for adjusting variable compression ratio of cylinder internal combustion engine used in passenger car, has ring gears that are meshed with planetary gear in axial direction at two different rigidity regions |
| CN104989803A (en) * | 2015-08-03 | 2015-10-21 | 许奉成 | Differential planetary reducer |
| CN205534042U (en) * | 2016-04-26 | 2016-08-31 | 长安大学 | Closed harmonic planetary gear reducer |
| CN206409578U (en) * | 2017-01-24 | 2017-08-15 | 北京龙微智能科技股份有限公司 | Encased differential gear train device and plant equipment |
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- 2017-01-24 CN CN201710054526.1A patent/CN108343712A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH368356A (en) * | 1957-09-21 | 1963-03-31 | Arima Takashi | Double reduction gear |
| CN85205664U (en) * | 1985-12-28 | 1986-12-10 | 沈阳矿山机器厂 | Planetary reducer with internal gear |
| DE10161942A1 (en) * | 2001-12-17 | 2003-07-03 | Thomas Hirn | Planetary gear has teeth of two planet wheels of planet wheel pair offset in relation to each other by determined angle and is calculated by mathematical expression |
| RU2008139793A (en) * | 2008-10-08 | 2010-04-20 | ГОУ ВПО "Тульский государственный университет" (RU) | TWO SPEED PLANETARY TRANSMISSION |
| CN202091437U (en) * | 2011-05-25 | 2011-12-28 | 深圳市琛玛华夏科技有限公司 | Novel planetary speed reducer and geared motor |
| DE102011114656A1 (en) * | 2011-09-30 | 2013-04-04 | Daimler Ag | Gear box of control device for adjusting variable compression ratio of cylinder internal combustion engine used in passenger car, has ring gears that are meshed with planetary gear in axial direction at two different rigidity regions |
| CN104989803A (en) * | 2015-08-03 | 2015-10-21 | 许奉成 | Differential planetary reducer |
| CN205534042U (en) * | 2016-04-26 | 2016-08-31 | 长安大学 | Closed harmonic planetary gear reducer |
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Address after: 102200 Beijing Changping District science and Technology Park Yongan Road 38 4 4 1 story 101 Applicant after: Beijing spoke full intelligence Polytron Technologies Inc Address before: 102200 2512 Building 2, 7 innovation road, Changping District science and Technology Park, Beijing. Applicant before: Beijing Longwei Intelligent Technology Co., Ltd. |