CN109630628A - A kind of mechanical stepless moment-changing and speed-changing device - Google Patents
A kind of mechanical stepless moment-changing and speed-changing device Download PDFInfo
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- CN109630628A CN109630628A CN201910003747.5A CN201910003747A CN109630628A CN 109630628 A CN109630628 A CN 109630628A CN 201910003747 A CN201910003747 A CN 201910003747A CN 109630628 A CN109630628 A CN 109630628A
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- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/76—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
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Abstract
The present invention relates to variable speed fields, disclose a kind of mechanical stepless moment-changing and speed-changing device, it is composed of multiple planetary gear sets by parallel and concatenated mode, including input planet gear group, middle planetary gear set and output planetary gear set；Input planet gear group is connected with output planetary gear set, middle planetary gear set is connected and in parallel with output planetary gear set with input planet gear group, the planet carrier of sun gear of the gear ring of input planet gear group as middle planetary gear set, input planet gear group is coaxial with the sun gear of output planetary gear set.The present invention is composed of spur gear or helical gear completely, thus have the advantages that noise is small, small in size, manufacturing cost is low etc., and also it is able to achieve Purely mechanical variable speed and bending moment, have the characteristics that variable-speed torque-converting range is big, transmission efficiency is high, so as to be widely used in each variable speed applications.
Description
Technical field
The present invention relates to a kind of stepless speed change device, especially a kind of mechanical stepless moment-changing and speed-changing device.
Background technique
Speed change gear be for changing the revolving speed from engine and the mechanism of torque, be widely used in automobile, lathe,
The fields such as aerospace, engineering machinery.
With the development of science and technology requirement of the people to speed change gear is also higher and higher.Variable speed is referred in speed change
The speed change system of any transmission ratio is continuously obtained in range.Automobile, lathe, aerospace, engineering machinery etc. pass through variable speed
The effect of device can make transmission system and engine generate the result of best match.Common stepless transmission has mechanical stepless
Speed changer, Hyaulic infinite variable speed device and electrodynamic type stepless transmission.
Pure gear type stepless speed changer has many advantages, such as that at low cost, feedback velocity is high, small in size, is widely ground in recent years
Study carefully and applies.107664194 A of document CN discloses the structure and application method of a kind of pure gear type stepless speed changer.But
The document uses component part of the bevel gear as differential mechanism, and bevel gear itself has compared with spur gear or helical gear
The disadvantages of noise is big, volume is big, manufacturing cost is high, thus need to be optimized.In addition, stepless transmission in this document without
Method realizes the function of bending moment so that its to be difficult to ensure that automobile or engineering machinery etc. can be competent in actual use various multiple
Miscellaneous road conditions.
Summary of the invention
The purpose of the invention is to overcome the above-mentioned deficiency of the prior art, and provide a kind of mechanical stepless bending moment speed change
Device, it is composed of spur gear or helical gear completely, thus has the advantages that noise is small, small in size, manufacturing cost is low etc., and
And it is also able to achieve Purely mechanical variable speed and bending moment, speed change, torque conversion range are big, can be widely used in each speed change field
It closes.
The technical scheme is that a kind of mechanical stepless moment-changing and speed-changing device, it is led to by multiple planetary gear sets
It crosses in parallel and concatenated mode to be composed, including input planet gear group, middle planetary gear set and output planetary gear set；
The input planet gear group, middle planetary gear set and output planetary gear set are combined by no less than one planetary gear
Form, input planet gear group is connected with output planetary gear set, middle planetary gear set connect with input planet gear group and
It is in parallel with output planetary gear set；Sun gear of the gear ring of the input planet gear group as middle planetary gear set, input
The planet carrier of planetary gear set is coaxial with the sun gear of output planetary gear set.
Further, the middle planetary gear set and output planetary gear set share a gear ring.
Further, the input planet gear group is made of the planetary gear for being no less than one, including input shaft, first
Sun gear, the first gear ring, first planet carrier and the first planetary gear, the input shaft are connected on the first sun gear, thus with
One planetary gear, first planet carrier and the first gear ring form planetary gear；Sun gear of first gear ring as middle planetary gear set,
Sun gear of the first planet carrier as output planetary gear set.
Further, the middle planetary gear set is made of the planetary gear for being no less than one, including the second sun gear,
Second planet carrier, the second planetary gear and the second gear ring, the first gear ring is as the second sun gear and the second planet carrier, the second planetary gear
Planetary gear is formed with the second gear ring；Second gear ring is both the gear ring and output planetary gear of middle planetary gear set
The gear ring of group；Second planet carrier is fixed in the sun gear shaft of output planetary gear set.
Further, the output planetary gear set is made of the planetary gear for being no less than one, including third sun gear,
Third planet carrier and output shaft, third sun gear and third planet carrier, the second gear ring form planetary gear, third planet carrier with it is defeated
Axis connection out, third sun gear are coaxial with first planet carrier.
Further, the middle planetary gear set is connected in series by the planetary gear for being no less than one；In cascade process
In, previous planetary gear planet carrier is as the latter planetary gear sun gear, the last one planetary gear planet carrier
It is fixed.
Further, the output planetary gear set is connected in series by the planetary gear for being no less than one；In cascade process
In, previous planetary gear planet carrier planetary gear coaxial with the latter planetary gear sun gear and all shares tooth
Circle.
Further, the transmission ratio of the gear ring in planetary gear all in the speed change gear and planet carrier is not less than
1.1547, the sun gear of the input planet gear group and the gear diameter ratio of planetary gear are not less than 1.1547, the planet tooth
Wheel is single planetary gear, by spur gear or bevel gear set at.
Further, in the input planet gear group, the transmission ratio of the first gear ring is not less than the transmission of first planet carrier
Than.
Further, the transmission ratio of the middle planetary gear set is greater than the transmission ratio of output planetary gear set.
Beneficial effects of the present invention: the present invention is composed of spur gear or helical gear completely, thus the small, body with noise
The advantages such as product is small, manufacturing cost is low, and it is also able to achieve Purely mechanical variable speed and bending moment, big with variable-speed torque-converting range,
The high feature of transmission efficiency, so as to be widely used in each variable speed applications.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 3；
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 4；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 5；
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 6.
In figure, 101-input planet gear groups, 102-middle planetary gear sets, 103-output planetary gear sets,
104-the second planetary gear, 105-fourth planet gears, 106-third planet gears, 107-fifth line star gears, 108-
6th planetary gear, the 109-the seven planetary gear, 1-input shaft, the 2-the first sun gear, the 3-the first gear ring, 4-the first rows
Carrier, the 5-the first planetary gear, the 6-the second sun gear, the 7-the second planet carrier, the 8-the second planetary gear, the 9-the second gear ring, 10-
6th planet carrier, 11-third sun gears, 12-third planet carriers, 13-output shafts, the 14-the four sun gear, 15-fourth lines
Carrier, 16-fourth line star-wheels, the 17-the four gear ring, the 18-the five sun gear, 19-fifth line carrier.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Embodiment 1
As shown in Figure 1, a kind of mechanical stepless moment-changing and speed-changing device, including input planet gear group 101, middle planetary gear set
102 and output planetary gear set 103；The input planet gear group 101, middle planetary gear set 102 and output planetary gear
Group 103 is a planetary gear, and input planet gear group 101 is connected with output planetary gear set 103, middle planetary gear set
102 connect and in parallel with output planetary gear set 103 with input planet gear group 101.
The input planet gear group includes input shaft 1, the first sun gear 2, the first gear ring 3, first planet carrier 4 and first
Planetary gear 5, the input shaft 1 are connected on the first sun gear 2, thus with the first planetary gear 5, first planet carrier 4 and the first tooth
3 composition planetary gear of circle；Sun gear of first gear ring 3 as middle planetary gear set 102, first planet carrier 4 is as output row
The sun gear of star gear set 103.
The middle planetary gear set 102 includes the second sun gear 6, the second planet carrier 7, the second planetary gear 8 and the second tooth
Circle 9, the first gear ring 3 form planetary gear as the second sun gear 6 and the second planet carrier 7, the second planetary gear 8 and the second gear ring 9；
Second gear ring 9 is both the gear ring of middle planetary gear set 102 and the gear ring of output planetary gear set 103.
The output planetary gear set 103 includes third sun gear 11, third planet carrier 12 and output shaft 13, the third sun
Wheel 11 forms planetary gear with third planet carrier 12, the second gear ring 9, and third planet carrier 12 is connect with output shaft 13, the third sun
Wheel 11 is coaxial with first planet carrier 4.
Second planet carrier 7 is fixed in the shaft of third sun gear 11 of output planetary gear set 103.Power is by defeated
Enter the input of axis 1, is exported by output shaft 13.
First sun gear 2 of the input planet gear group 101 is not less than with the gear diameter ratio of the first planetary gear 5
1.1547, specifically, the gear diameter ratio of the first sun gear 2 and the first planetary gear 5 is 1.2.
Further, the input planet gear group 101, middle planetary gear set 102 and output planetary gear set 103
The transmission ratio of gear ring and planet carrier is not less than 1.1547, and specifically, the transmission ratio of the first gear ring 3 and first planet carrier 4 is 2, the
The transmission ratio of two gear rings 9 and the second planet carrier 7 is 2, and the transmission ratio of the second gear ring 9 and third planet carrier 12 is 2.
The input planet gear group 101, middle planetary gear set 102 and output planetary gear set 103 are by helical gear
Or spur gear composition.
It should be understood that 1.1547 this critical number, the also referred to as golden section point of this technology, the data are logical
It crosses multiple field experiment and repeatedly proves and obtain.
The use principle of the present embodiment:
Assuming that the cogged number of teeth of institute is all the same in embodiment 1.According to planetary gear working principle, input shaft 1 and first is too
The steering of sun wheel 2 is identical, identical as the steering of first planet carrier 4, since first planet carrier 4 is coaxial with third sun gear 11 and the
Three planet carriers 12 are connect with output shaft 13, then are not difficult to obtain, are gone here and there in input planet gear group 101 and output planetary gear set 103
On the path of connection, input shaft 1 is identical as the steering of output shaft 13.
Further according to planetary gear working principle, the steering of the first gear ring 3 is opposite with the steering of input shaft 1.In center row
In star gear set 102, since the first gear ring 3 is exactly the second sun gear 6, and the second planet carrier 7 is fixed on output planetary gear set
In the shaft of 103 third sun gear 11, then the steering of the second gear ring 9 and the steering of the first gear ring 3 are on the contrary, i.e. the second gear ring 9
Steering it is identical as the steering of input shaft 1.Since input shaft 1 is connected by first planet carrier 4 with output planetary gear set 103,
In output planetary gear set 103, the steering of the second gear ring 9 is identical as the steering of output shaft 13, i.e., the steering of the second gear ring 9 with
The steering of input shaft 1 is identical, and the gear ring (i.e. the second gear ring 9) and output shaft 13 of output planetary group 103 rotate synchronously.
According to above-mentioned principle, input shaft 1 is connected with output planetary gear set 103 by input planet gear group 101, is intermediate
Planetary gear set 102 is in parallel with output planetary gear set 103, gives the rotation addition of output shaft 13 two superpositions, i.e. series connection road
The addition of diameter power and the addition of parallel pathways power, are exported by output shaft 13, output and input composition balance.
According to active force and reaction force in newtonian motion mechanics and planetary gear correlation properties, when on output shaft 13
When by reaction force, if input shaft is not achieved to the value of the addition power of output shaft 13 in the power, output shaft 13 can be smooth
Resistance is overcome, when smaller 13 revolving speed of then output shaft of resistance is faster.If the reaction force being subject on output shaft 13 is more than output shaft
The value of 13 addition power, then output shaft 13 cannot overcome resistance, and third planet carrier 12 is fixed at this time, in output planetary gear set
The second gear ring 9 steering on 103 changes, and since resistance is excessive, then the second gear ring 9 turns to entirety and changes, and makes first
Gear ring 3 rotates forward, and therefore, only when external resistance is less than the power output of output shaft 13, output shaft 13 could export and overcome outer
Boundary's resistance and normal rotation simultaneously automatically adjust torque and speed according to the size of resistance.
Because the planet carrier (i.e. the second planet carrier 7) of middle planetary gear set 102 is fixed on the row of input planet gear group 101
On carrier axis (while being also the shaft of the sun gear of output planetary gear set 103), as shown in Figure 1, then middle planetary gear set
102 planet carrier (i.e. the second planet carrier 7) is rotated synchronously with first planet carrier 4, and the second planetary gear 8 thereon is by the first gear ring
3 and second two reaction forces on gear ring 9 whiles act on.The rotating forward of first gear ring 3 and the second gear ring 9 because of the second planet carrier 7
And generate mutually constraint, it can be understood as carry on a shoulder pole the first gear ring 3 and second simultaneously in the second planet carrier 7 both ends as a shoulder pole
Gear ring 9.When the rotation of the second planet carrier 7, the second planetary gear 8 rotates synchronously on it, with the first gear ring 3 and the second gear ring 9
It rotates synchronously, i.e., " revolves " to the same direction.When the power (power that input shaft 1 is subject to) of input terminal and the power (output of output end
The power that axis 13 is subject to) it is not reciprocity when, the balance in this is broken, and needs to reconstitute balance.Then the second planet carrier 7, the second row
Relative motion is generated between star-wheel 8, the first gear ring 3 and the second gear ring 9, as described in the forst law of motion, because by external force
Intervene so that the motion state in system changes, at this time by the second planet carrier 7, the second planetary gear 8, the first gear ring 3 and the
Two gear rings 9 regard a system as, and existing revolution has autobiography again in the system at this time.When the power that extraneous power, that is, output shaft 13 is subject to
When reaching the maximum output power in system, the system is only from transferring without revolution.So entire mechanism can be according to power and outer
The variation to move in circles for mutually changing and constantly automatically adjusting power and speed between boundary's resistance, to realize variable speed
Or bending moment.
To sum up, the present invention connected with output planetary gear set 103 by input planet gear group 101, intermediate planetary gear
Group 102 is connected and in parallel with output planetary gear set 103 with planet tooth roadlock 101 is inputted, and ideally realizes mechanical stepless
Bending moment and speed change.
Embodiment 2
As shown in Fig. 2, a kind of mechanical stepless moment-changing and speed-changing device, including input planet gear group 101, middle planetary gear set
102 and output planetary gear set 103；The input planet gear group 101 and output planetary gear set 103 are a planet tooth
Wheel, 102 groups of intermediate planetary gear are combined by two planetary gears, input planet gear group 101 and output planetary gear set
103 series connection, middle planetary gear set 102 are connected and in parallel with output planetary gear set 103 with input planet gear group 101.
The input planet gear group includes input shaft 1, the first sun gear 2, the first gear ring 3, first planet carrier 4 and first
Planetary gear 5, the input shaft 1 are connected on the first sun gear 2, thus with the first planetary gear 5, first planet carrier 4 and the first tooth
3 composition planetary gear of circle；Sun gear of first gear ring 3 as middle planetary gear set 102, first planet carrier 4 is as output row
The sun gear of star gear set 103.
The middle planetary gear set is connected in series by the second planetary gear 104 and fourth planet gear 105, and described second
Planetary gear 104 includes the second sun gear 6, the second planet carrier 7, the second planetary gear 8 and the second gear ring 9, and the first gear ring 3 is as the
Two sun gears 6 and the second planet carrier 7, the second planetary gear 8 and the second gear ring 9 form planetary gear, and the second gear ring 9 is fixed on rack
On；The fourth planet gear 105 includes the 4th sun gear 14, fourth line carrier 15, fourth line star-wheel 16 and the 4th gear ring 17,
Second planet carrier 7 forms planet tooth with fourth line carrier 15, fourth line star-wheel 16 and the 4th gear ring 17 as the 4th sun gear 14
Wheel.4th gear ring 17 is both the gear ring of middle planetary gear set 102 and the gear ring of output planetary gear set 103；It is described
Fourth line carrier 15 is fixed in the shaft of third sun gear 11 of output planetary gear set 103.
The output planetary gear set 103 includes third sun gear 11, third planet carrier 12 and output shaft 13, the third sun
Wheel 11 forms planetary gear with third planet carrier 12, the second gear ring 9, and third planet carrier 12 is connect with output shaft 13, the third sun
Wheel 11 is coaxial with first planet carrier 4.
The input planet gear group 101, middle planetary gear set 102 and output planetary gear set 103 are by helical gear
Or spur gear composition.
The principle of embodiment 2 is arranged two in middle planetary gear set 102 and is connected on as the principle of embodiment 1
Planetary gear together can increase input shaft 1 to the revolving speed amplification factor of output shaft 103.
By embodiment 2 it is found that middle planetary gear set can be connected in series by multiple planetary gears, those skilled in the art
It can be clearly understood that, either several planetary gear series connection form the middle planetary gear set similar with the principle of the invention,
It should also within protection scope of the present invention.
Embodiment 3
As shown in figure 3, embodiment 3 and embodiment 2 are unanimous on the whole, difference is: in embodiment 3, the second gear ring 9 and the second row
Carrier 7 connects.
Embodiment 4
As shown in figure 4, a kind of mechanical stepless moment-changing and speed-changing device, including input planet gear group 101, middle planetary gear set
102 and output planetary gear set 103；The input planet gear group 101, middle planetary gear set 102 and output planetary gear
Group 103 is a planetary gear, and input planet gear group 101 is connected with output planetary gear set 103, middle planetary gear set
102 connect and in parallel with output planetary gear set 103 with input planet gear group 101.
The input planet gear group includes input shaft 1, the first sun gear 2, the first gear ring 3, first planet carrier 4 and first
Planetary gear 5, the input shaft 1 are connected on the first sun gear 2, thus with the first planetary gear 5, first planet carrier 4 and the first tooth
3 composition planetary gear of circle；Sun gear of first gear ring 3 as middle planetary gear set 102, first planet carrier 4 is as output row
The sun gear of star gear set 103.
The middle planetary gear set 102 includes the second sun gear 6, the second planet carrier 7, the second planetary gear 8 and the second tooth
Circle 9, the first gear ring 3 form planetary gear as the second sun gear 6 and the second planet carrier 7, the second planetary gear 8 and the second gear ring 9；
Second gear ring 9 is both the gear ring of middle planetary gear set 102 and the gear ring of output planetary gear set 103；Described second
Planet carrier 7 is fixed in rack 10.
The output planetary gear set 103 is connected in series by third planet gear 106 and fifth line star gear 107, described
Third planet gear 106 includes third sun gear 11, third planet carrier 12, third sun gear 11 and third planet carrier 12, second
Gear ring 9 forms planetary gear, and third sun gear 11 is coaxial with first planet carrier 4；The fifth line star gear 107 includes the 5th too
Sun wheel 18, fifth line carrier 19, output shaft 13, fifth line carrier 19 are connect with output shaft 13, the 5th sun gear 18 and the third line
Carrier 12 is coaxial.
The input planet gear group 101, middle planetary gear set 102 and output planetary gear set 103 are by helical gear
Or spur gear composition.
The principle of embodiment 3 is arranged two in output planetary gear set 103 and is connected on as the principle of embodiment 1
Planetary gear together can increase input shaft 1 to the torque multiple of output shaft 13.
By embodiment 3 it is found that output planetary gear set can be connected in series by multiple planetary gears, those skilled in the art
It can be clearly understood that, either several planetary gear series connection form the output planetary gear set similar with the principle of the invention,
Also within protection scope of the present invention.
Embodiment 5
As shown in figure 5, a kind of mechanical stepless moment-changing and speed-changing device, including input planet gear group 101, middle planetary gear set
102 and output planetary gear set 103；The input planet gear group 101, middle planetary gear set 102 and output planetary gear
Group 103 is a planetary gear, and input planet gear group 101 is connected with output planetary gear set 103, middle planetary gear set
102 connect and in parallel with output planetary gear set 103 with input planet gear group 101.
The input planet gear group includes input shaft 1, the first sun gear 2, the first gear ring 3, first planet carrier 4 and first
Planetary gear 5, the input shaft 1 are connected on the first sun gear 2, thus with the first planetary gear 5, first planet carrier 4 and the first tooth
3 composition planetary gear of circle；Sun gear of first gear ring 3 as middle planetary gear set 102, first planet carrier 4 is as output row
The sun gear of star gear set 103.
The middle planetary gear set is connected in series by the second planetary gear 104 and fourth planet gear 105, and described second
Planetary gear 104 includes the second sun gear 6, the second planet carrier 7, the second planetary gear 8 and the second gear ring 9, and the first gear ring 3 is as the
Two sun gears 6 and the second planet carrier 7, the second planetary gear 8 and the second gear ring 9 form planetary gear, and the second gear ring 9 is fixed on rack
On；The fourth planet gear 105 includes the 4th sun gear 14, fourth line carrier 15, fourth line star-wheel 16 and the 4th gear ring 17,
Second planet carrier 7 forms planet tooth with fourth line carrier 15, fourth line star-wheel 16 and the 4th gear ring 17 as the 4th sun gear 14
Wheel.4th gear ring 17 is both the gear ring of middle planetary gear set 102 and the gear ring of output planetary gear set 103；It is described
Fourth line carrier 15 is fixed in the shaft of third sun gear 11 of output planetary gear set 103.
The output planetary gear set 103 is connected in series by third planet gear 106 and fifth line star gear 107, described
Third planet gear 106 includes third sun gear 11, third planet carrier 12, third sun gear 11 and third planet carrier 12, second
Gear ring 9 forms planetary gear, and third sun gear 11 is coaxial with first planet carrier 4；The fifth line star gear 107 includes the 5th too
Sun wheel 18, fifth line carrier 19, output shaft 13, fifth line carrier 19 are connect with output shaft 13, the 5th sun gear 18 and the third line
Carrier 12 is coaxial.
The input planet gear group 101, middle planetary gear set 102 and output planetary gear set 103 are by helical gear
Or spur gear composition.
The principle of embodiment 5 is arranged two in middle planetary gear set 102 and is connected on as the principle of embodiment 1
Planetary gear together and two planetary gears being cascaded of setting in output planetary gear set 103, can increase defeated
Enter axis 1 to the torque multiplication of output shaft 13.
By embodiment 5 it is found that middle planetary gear set can be connected in series by multiple planetary gears, output planetary gear set
It can be connected in series by multiple planetary gears, those skilled in the art can be clearly understood that, either several planetary gear strings
Connection, forms the middle planetary gear set and output planetary gear set similar with the principle of the invention, and then by intermediate planetary gear
Group is in parallel with output planetary gear set, all within protection scope of the present invention.
Embodiment 6
As shown in fig. 6, embodiment 6 and embodiment 5 are unanimous on the whole, difference is: in embodiment 6, input planet gear group 101 by
Two planetary gears i.e. the 6th planetary gear 108 and the 7th planetary gear 109 is connected in series, and the 6th of the 6th planetary gear 108 the
Planet carrier 10 is the sun gear of the 7th planetary gear 109.
By embodiment 6 it is found that input planet gear group, middle planetary gear set and output planetary gear set can be by more
A planetary gear is connected in series, and those skilled in the art can be clearly understood that, either several planetary gears series connection, composition with
The similar input planet gear group of the principle of the invention, middle planetary gear set and output planetary gear set, and then by center row
Star gear set is connected with input planet gear group, middle planetary gear set is in parallel with output planetary gear set, all of the invention
Within protection scope.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technology
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of mechanical stepless moment-changing and speed-changing device, it is characterised in that: it is to pass through in parallel and string by multiple planetary gear sets
The mode of connection is composed, including input planet gear group, middle planetary gear set and output planetary gear set；The line of input
Star gear set, middle planetary gear set and output planetary gear set are combined by no less than one planetary gear, input
Planetary gear set is connected with output planetary gear set, and middle planetary gear set is connected with input planet gear group and and output planetary
Gear set is in parallel, sun gear of the gear ring of the input planet gear group as middle planetary gear set, input planet gear group
Planet carrier it is coaxial with the sun gear of output planetary gear set.
2. mechanical stepless moment-changing and speed-changing device as described in claim 1, it is characterised in that: the middle planetary gear set with
Output planetary gear set shares a gear ring.
3. mechanical stepless moment-changing and speed-changing device as described in claim 1, it is characterised in that: the input planet gear group by
No less than one planetary gear is constituted, including input shaft, the first sun gear, the first gear ring, first planet carrier and the first planet
Wheel, the input shaft are connected on the first sun gear, to form planet with the first planetary gear, first planet carrier and the first gear ring
Gear；Sun gear of first gear ring as middle planetary gear set, sun gear of the first planet carrier as output planetary gear set.
4. mechanical stepless moment-changing and speed-changing device as claimed in claim 3, it is characterised in that: the middle planetary gear set by
No less than one planetary gear composition, including the second sun gear, the second planet carrier, the second planetary gear and the second gear ring, first
Gear ring forms planetary gear as the second sun gear and the second planet carrier, the second planetary gear and the second gear ring；Second gear ring is fixed
It connect on the rack or with the second planet carrier；Second gear ring is both the gear ring of middle planetary gear set, and output row
The gear ring of star gear set；Second planet carrier is fixed in the sun gear shaft of output planetary gear set.
5. mechanical stepless moment-changing and speed-changing device as claimed in claim 4, it is characterised in that: the output planetary gear set by
No less than one planetary gear composition, including third sun gear, third planet carrier and output shaft, third sun gear and the third line
Carrier, the second gear ring form planetary gear, and third planet carrier is connected with exporting axis, and third sun gear is coaxial with first planet carrier.
6. such as the described in any item mechanical stepless moment-changing and speed-changing devices of claim 1 ~ 5, it is characterised in that: the middle planetary
Gear set is connected in series by the planetary gear for being no less than one；In cascade process, previous planetary gear planet carrier conduct
The latter planetary gear sun gear, the last one planetary gear planet carrier are fixed.
7. such as the described in any item mechanical stepless moment-changing and speed-changing devices of claim 1 ~ 5, it is characterised in that: the output planetary
Gear set is connected in series by the planetary gear for being no less than one；In cascade process, previous planetary gear planet carrier is with after
The coaxial and all planetary gear of one planetary gear sun gear shares gear ring.
8. such as the described in any item mechanical stepless moment-changing and speed-changing devices of claim 1 ~ 5, it is characterised in that: in the speed change gear
The transmission ratio of gear ring and planet carrier in all planetary gears is not less than 1.1547, the sun gear of the input planet gear group
It is not less than 1.1547 with the gear diameter ratio of planetary gear, the planetary gear is single planetary gear, by spur gear or helical teeth
Wheel composition.
9. such as the described in any item mechanical stepless moment-changing and speed-changing devices of claim 1 ~ 5, it is characterised in that: the input planet
In gear set, the transmission ratio of the first gear ring is not less than the transmission ratio of first planet carrier.
10. such as the described in any item mechanical stepless moment-changing and speed-changing devices of claim 1 ~ 5, it is characterised in that: the center row
The transmission ratio of star gear set is greater than the transmission ratio of output planetary gear set.
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| CN201910003747.5A CN109630628A (en) | 2019-01-03 | 2019-01-03 | A kind of mechanical stepless moment-changing and speed-changing device |
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| CN201910003747.5A CN109630628A (en) | 2019-01-03 | 2019-01-03 | A kind of mechanical stepless moment-changing and speed-changing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617312A (en) * | 2019-09-12 | 2019-12-27 | 何耀华 | All-gear stepless automatic speed change and speed ratio active control system |
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2019
- 2019-01-03 CN CN201910003747.5A patent/CN109630628A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617312A (en) * | 2019-09-12 | 2019-12-27 | 何耀华 | All-gear stepless automatic speed change and speed ratio active control system |
| CN110617312B (en) * | 2019-09-12 | 2021-08-31 | 何耀华 | All-gear stepless automatic speed change and speed ratio active control system |
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