CN111765222A - Continuously variable transmission, continuously variable transmission method and application - Google Patents
Continuously variable transmission, continuously variable transmission method and application Download PDFInfo
- Publication number
- CN111765222A CN111765222A CN202010657285.1A CN202010657285A CN111765222A CN 111765222 A CN111765222 A CN 111765222A CN 202010657285 A CN202010657285 A CN 202010657285A CN 111765222 A CN111765222 A CN 111765222A
- Authority
- CN
- China
- Prior art keywords
- transmission
- gear
- speed
- gears
- planetary gears
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a continuously variable transmission, which comprises planetary gears, wherein the planetary gears comprise an inner gear ring, a planet carrier and a sun gear, the planetary gears are divided into two groups, and in the two groups of planetary gears, the inner gear ring, the planet carrier and the sun gear are correspondingly connected in series: the inner gear rings of the two planetary gears are in transmission connection, and the sun gears of the two planetary gears are in transmission connection; the planet carriers of the two rows of gears are in transmission connection; at least one group of the three groups of transmission connecting routes is constant-speed-difference variable-speed transmission; the speed regulator is connected in series in one group of transmission connecting lines and is used for stepless adjustment of speed variation difference on the transmission connecting lines; the transmission connecting line where the speed regulator is located and the transmission connecting line where the variable speed transmission is located are different transmission connecting lines. The continuously variable transmission provided by the scheme is applied to the planetary gear to realize full gear engagement, and has the characteristics of zero-crossing point continuous speed regulation, and meanwhile, the continuously variable transmission is high in transmission power and high in transmission efficiency.
Description
Technical Field
The invention relates to the technical field of transmissions, in particular to a continuously variable transmission, a continuously variable transmission method and application.
Background
The stepless speed changer is a commonly used transmission device in a mechanical transmission system, and can realize the continuous change of the rotating speed of an output shaft within a certain range through the gradual change of the transmission ratio so as to meet the requirements of various working conditions of a machine production system in the operation process.
The system has obvious effects on improving the yield of products, adapting to the product change requirements, saving energy, realizing the mechanization, automation and the like of the whole system. Thus, the continuously variable transmission is now a common transmission element and has found wide application in automotive and various industrial sectors.
The existing mechanical stepless speed changer mainly comprises three types of friction type, hydraulic type and pulse type. The friction type is mainly CVT. The planetary cone-disk stepless speed variator of cone-disk roller CVT has the features of continuous output change and low power transmission. The hydraulic type has the characteristic of large transmission power of continuous change of output, but the efficiency is lower in most ranges of speed change. The pulse type continuously variable transmission CVT is characterized in that the low speed can reach zero, but the vibration caused by transmission is large, so that the application is less.
Disclosure of Invention
Aiming at the characteristics of the mechanical continuously variable transmission in the prior art, the invention provides the continuously variable transmission, the continuously variable transmission method and the application thereof.
The invention provides a continuously variable transmission which solves the problems through the following technical points, and the continuously variable transmission comprises planetary gears, wherein the planetary gears comprise an inner gear ring, a planet carrier and a sun gear, the planetary gears are divided into two groups, and in the two groups of planetary gears, the inner gear ring, the planet carrier and the sun gear are correspondingly connected in series: the inner gear rings of the two planetary gears are in transmission connection, and the sun gears of the two planetary gears are in transmission connection; the planet carriers of the two rows of gears are in transmission connection;
at least one group of the three groups of transmission connecting routes is constant-speed-difference variable-speed transmission;
the speed regulator is connected in series in one group of transmission connecting lines and is used for stepless adjustment of speed variation difference on the transmission connecting lines;
the transmission connecting line where the speed regulator is located and the transmission connecting line where the variable speed transmission is located are different transmission connecting lines.
The invention aims to solve the defects that the existing continuously variable transmission cannot be realized and the high-power zero crossing point is stably driven. The full-gear transmission can be realized, the high power is realized, and the zero crossing point is stably transmitted.
The scheme is divided into three parts according to the functions realized in the stepless speed regulation device: firstly, a speed regulator part (figure 3); second, a continuously variable transmission assembly portion (fig. 2); and thirdly, a continuously variable transmission part (figure 1).
The governor portion of the present invention may be configured as: two groups of planet gears are also adopted, and the two groups of planet gears belonging to the speed regulator respectively comprise a sun gear, an inner gear ring, a planet carrier and two groups of planet gears which are respectively used as output and input. In the specific structural connection, the sun gear, the inner gear ring and the planet carrier form the corresponding series connection relation of the continuously variable transmission on a transmission connection line where the speed regulator is located, one group of the three corresponding transmission connection lines on the speed regulator is directly connected, the other group of the three corresponding transmission connection lines is connected through a specific speed regulating component comprising a speed regulating motor and a bevel gear, the speed regulating motor is fixed on the shell, the input and output rotating speeds of the speed regulating motor are equal when the speed regulating motor does not rotate, and the input and output speed difference is generated when the speed regulating motor rotates, so that the speed variation difference on the transmission connection line where the speed regulator is located is adjusted. The speed regulator can be arranged between the planet carriers of the two planetary gears in the integral assembly of the continuously variable transmission, and can also be arranged between the planet gears on the integral basis of the continuously variable transmission.
The stepless speed change component part of the invention can lead two groups of planet gear carriers, inner gear rings and sun gears to be fixedly connected in series, thus leading the two groups of planet gears to generate a speed difference. The other group is connected in series through a speed regulator, and the movement speed among the inner gear rings of the two groups of planet gears, the planet carrier and the sun gear can be controlled to be changed greatly by a small speed change on the speed regulator. While generating an internal power flow, on one planetary gear is the driven member and on the other planetary gear is the driving member. One group of the inner gear ring, the planet carrier and the sun gear is used as a driving part and is subjected to smaller resistance than the obtained power as a driven part within a certain rotating speed range, and the inner gear ring is usually selected as an output element because the inner gear ring can obtain a larger speed change range. And the other group is used as a feedback element, and the resistance force of the driving part is equal to the obtained power as the driven part. When the two groups of elements are used as a driving part and a driven part, the torque is output without torque when the torques are equal, and the point is the self-locking point of the continuously variable transmission. The third group receives a larger resistance force as a driving member than the obtained power as a driven member as an input member.
The stepless speed changer can also carry out adjustable speed power shunt, and the characteristic is particularly suitable for the application of hybrid electric vehicles and the like which need power shunt.
Because the efficiency of circulating power flow is not high, the input can be divided into two paths, one path is transmitted to the next-stage planetary gear through the inner gear ring transmission gear, and the other path is output to the next-stage planetary gear through the access of the stepless speed regulator, and then output is synthesized. Usually, the planet gear of the first stage adopts a planet carrier input inner gear ring to directly transmit to the inner gear ring of the next stage through an inner gear ring transmission gear, if the sun gear of the first stage is smaller and the sun gear of the second stage is larger according to specific requirements, the purpose of improving the transmission efficiency can be achieved compared with the traditional continuously variable transmission. Because the zero crossing point speed regulation of the stepless speed changer is realized, when the amplification factor is large, the power can flow back through the inner gear ring transmission gear, and a transmission shaft of the inner gear ring transmission gear is preferably provided with a one-way bearing.
Because the inner gear rings of the two planetary gears are in transmission connection with the power transmission route, compared with the stepless speed changer in the prior art, the stepless speed changer has the characteristic of high transmission power.
The further technical scheme is as follows:
as a specific implementation manner of the speed regulator with small vibration, the following steps are provided: the speed regulator comprises an adjustable speed motor and a conical gear, the conical gear and the adjustable speed motor are coaxial and are connected to a rotor of the adjustable speed motor, and the conical gear is connected in series in a corresponding transmission connecting route. When the scheme is specifically applied, the speed regulators are connected in series between two ends of the continuously variable transmission, and the specific series connection mode can be a mode of completing series connection through the planetary gears.
In view of the gear ratio adjustable range of the present continuously variable transmission, it is set to: in the two groups of planetary gears, a planet carrier or a sun gear on one group of planetary gears is used as the input end of the continuously variable transmission, and an inner gear ring on the other group of planetary gears is used as the output end of the continuously variable transmission.
As a specific fixed speed difference variable transmission mode, the following modes are set: the fixed speed difference variable speed transmission is as follows: in the two groups of planetary gears, the number of the outer teeth of the two inner gear rings is different; in the two groups of planetary gears, the teeth numbers of the two planetary gears are different; the inner gear rings of the two planetary gears are in transmission connection: the two inner gear rings form a fixed transmission ratio transmission connection relationship through gears, and the number of teeth of the gears for realizing the fixed transmission ratio transmission connection in the two groups of planetary gears is different. In the specific structure, the above gears are the inner gear transmission gears as described below, for example, the inner gear transmission gears comprise a first inner gear transmission gear and a second inner gear transmission gear, and the inner gear transmission gears directly transmit torque through a transmission shaft.
In view of reducing the overall radial dimension of the continuously variable transmission, it is provided that: the speed regulator is connected between the two planet carriers in series.
In view of reducing the axial dimension of the continuously variable transmission as a whole, it is provided that: the speed regulator is connected between the two sun gears in series.
The scheme also provides a stepless speed change method, which is based on the planetary gears, wherein the planetary gears comprise an inner gear ring, a planet carrier and a sun gear, the planetary gears are divided into two groups, and in the two groups of planetary gears, the inner gear ring, the planet carrier and the sun gear are correspondingly connected in series: the inner gear rings of the two planetary gears are in transmission connection, and the sun gears of the two planetary gears are in transmission connection; the planet carriers of the two rows of gears are in transmission connection;
one of the three groups of transmission connecting routes is used as a power input route, the other two groups of transmission connecting routes are used as power feedback routes, and one of the other two groups of transmission connecting routes is also used as a power output route;
the power feedback route is used for realizing the rotation speed regulation of the power output route.
By adopting the scheme, the full-gear meshing form which can be provided by the planetary gear is utilized, and when power is transmitted, if the full-gear meshing form is compared with a friction type stepless speed changer, the full-gear transmission not only has the characteristic of zero-crossing point continuous speed regulation, but also has the characteristics of large transmission power and high transmission efficiency.
The application of a stepless speed changer as a power divider. In a specific application, the continuously variable transmission may be configured to have two outputs, such as the transmission connection lines described above, and two sets of transmission connection lines as power feedback lines are provided with outputs, so that when the prime mover operates in a high power range on a power curve, for example, the rotation speed of one of the outputs is used as a main control index, and when the main control index meets a requirement, the power flow may be output from the other output.
The invention has the following beneficial effects:
the stepless speed changer provided by the scheme can carry out speed-adjustable power division, and the characteristic is particularly suitable for application of hybrid electric vehicles and the like which need power division.
In the specific structural design of the continuously variable transmission provided by the scheme, because the circulating power flow efficiency is not high, the input can be divided into two paths, one path is transmitted to the next-stage planetary gear through the inner gear ring transmission gear, and the other path is output to the next-stage planetary gear through the connection of the continuously variable speed regulator, and then the output is synthesized. Usually, the planet gear of the first stage adopts a planet carrier input inner gear ring to directly transmit to the inner gear ring of the next stage through an inner gear ring transmission gear, if the sun gear of the first stage is smaller and the sun gear of the second stage is larger according to specific requirements, the purpose of improving the transmission efficiency can be achieved compared with the traditional continuously variable transmission. Because the zero crossing point speed regulation of the stepless speed changer is realized, when the amplification factor is large, the power can flow back through the inner gear ring transmission gear, and a transmission shaft of the inner gear ring transmission gear is preferably provided with a one-way bearing.
Because the inner gear rings of the two planetary gears are in transmission connection with the power transmission route, compared with the stepless speed changer in the prior art, the stepless speed changer has the characteristic of high transmission power. .
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a continuously variable transmission provided by the present invention;
FIG. 2 is a schematic structural diagram of the continuously variable transmission component portion of one embodiment of the continuously variable transmission provided in accordance with the present invention;
fig. 3 is a schematic structural view of a speed governor portion in an embodiment of a continuously variable transmission according to the present invention.
The reference numbers in the figures are in order: 1. input shaft, 2, first ring gear transmission gear, 3, first double-sided ring gear, 4, first planet gear, 5, first sun gear, 6, first planet carrier, 7, third ring gear transmission gear, 8, third double-sided ring gear, 9, third planet gear, 10, third sun gear, 11, third planet carrier 12, fourth ring gear, 13, fourth planet gear, 14, fourth sun gear, 15, fourth planet carrier, 16, variable speed motor, 17, first bevel gear, 18, second bevel gear, 19, third bevel gear, 20, fifth ring gear, 21, fifth planet gear, 22, fifth planet carrier, 23, fifth sun gear, 24, fifth planet carrier, 25, second planet gear, 26, second ring gear transmission gear, 27, second double-sided ring gear, 28, second sun gear, 29, first transmission gear, 30 ring gear, 28, second ring gear, 29, first ring gear, 30 ring gear, and fourth ring gear, A second double-face tooth inner gear ring 31, a sixth planet wheel 32, a sixth sun wheel 33, an output shaft 34 and a one-way bearing.
Detailed Description
The present invention will be described in further detail with reference to examples, but the structure of the present invention is not limited to the following examples.
Example 1:
in order to better understand the technical solution, with reference to fig. 1 to fig. 3, the present embodiment provides a specific implementation form of a continuously variable transmission, and the principle, function, and the like of the continuously variable transmission are explained in more detail:
for convenience of understanding, the following four parts illustrate the working principle.
The first part
As shown in fig. 3, the fourth ring gear 12, the fourth planetary gear 13, and the fourth sun gear 14 constitute one planetary gear. The fifth ring gear 20, the fifth planetary gear 21, and the fifth sun gear 23 constitute one planetary gear. The two planet gears are identical. The fourth sun gear 14 and the fifth sun gear 23 are connected by a hollow shaft. The fourth planet carrier 15 is provided with a second conical gear 18, the fifth planet carrier 22 is provided with a third conical gear 19, the second conical gear 18 and the third conical gear 19 are both meshed with the first conical gear 17, the speed regulating motor 16 is fixed on a machine shell to drive the first conical gear 17 to rotate, and the third planet carrier 11 and the fifth planet carrier 24 are used for input and output respectively. The device has the functions that the rotating speed difference between the third planet carrier 11 and the fourth and fifth planet carrier 24 is zero when the speed regulating motor 16 does not rotate, and the rotating speed difference between the third planet carrier 11 and the fifth planet carrier 24 is controlled when the speed regulating motor 16 rotates. The function of this part is such that the difference in rotational speed between the third carrier 11 and the fifth carrier 24 is controlled by the variable speed motor 16. In the above structure, for the input end and the output end, any one of the three groups of the inner gear ring, the planet carrier and the sun gear is directly connected with the input shaft as the input end, the other group is directly connected with the output shaft as the output end, and the rest groups can realize the motor control speed regulation function through more than one differential regulation modes.
The second part
As shown in fig. 2, the third double-sided ring gear 8, the third planet wheels 9 and the third sun wheel 10 of the continuously variable transmission part of the present invention are one planet gear, and in correspondence with the planet gear, the other planet gear comprises a second double-sided ring gear 27, second planet wheels 25 and a second sun wheel 28, the third planet wheels 9 and the second planet wheels 25 are identical, and the third double-sided ring gear 8 and the second double-sided ring gear 27 have the same internal teeth but different external teeth. The device also comprises a third inner gear ring transmission gear 7 and a second inner gear ring transmission gear 26, wherein the third inner gear ring transmission gear 7 and the second inner gear ring transmission gear 26 are connected with a shaft coaxial with the third inner gear ring transmission gear 7 and the second inner gear ring transmission gear 26, the third inner gear ring transmission gear 7 is meshed with external teeth of a third double-sided tooth inner gear ring 8, the second inner gear ring transmission gear 26 is meshed with external teeth of a second double-sided tooth inner gear ring 27, and the purpose is as: the angular velocity of the third double-sided tooth ring gear 8 is made different from the angular velocity of the second double-sided tooth ring gear 27. For ease of understanding, the following is an analytical description of the case where the angular velocity of the third double-sided tooth ring gear 8 is less than the angular velocity of the second double-sided tooth ring gear 27: for example, the external teeth of the third double-sided tooth ring gear 8 are 101 teeth, the external teeth of the second double-sided tooth ring gear 27 are 100 teeth, the base circle diameter of the external teeth of the third double-sided tooth ring gear 8 is larger than the base circle diameter of the external teeth of the second double-sided tooth ring gear 27, the third ring gear transmission gear 7 is identical to the second ring gear transmission gear 26, and because the center distances between the third double-sided tooth ring gear 8 and the third ring gear transmission gear 7 and the second double-sided tooth ring gear 27 and the second ring gear transmission gear 26 are not equal, the third double-sided tooth ring gear 8 and the third ring gear transmission gear 7 can be assuredly engaged by adopting a gear shifting method, so that the angular velocity of the third double-sided tooth ring.
In the following, when the first carrier 6 is input, the rotation speed of the speed regulating motor 16 is zero, the rotation speeds of the third carrier 11 and the fifth carrier 24 are the same, and the angular speed of the third double-sided tooth ring gear 8 is different from the angular speed of the second double-sided tooth ring gear 27, and the angular speed of the third sun gear 10 is the same as the angular speed of the second sun gear 28, the third double-sided tooth ring gear 8 and the second double-sided tooth ring gear 27 do not rotate, and the output is zero. When the speed regulating motor 16 starts to rotate to enable the rotation speed of the third planet carrier 11 to be slower than that of the fifth planet carrier 24, the rotation speed of the third planet carrier 11 is half of the sum of the third double-sided tooth ring gear 8 and the third sun gear 10, the rotation speed of the fifth planet carrier 24 is half of the sum of the second double-sided tooth ring gear 27 and the second sun gear 28, and the purposes of controlling the rotation speed of the second double-sided tooth ring gear 27 and controlling the output rotation speed of the second double-sided tooth ring gear 27 are achieved by controlling the rotation speed difference between the third planet carrier 11 and the fifth planet carrier 24. Therefore, on the whole transmission line, the purpose of controlling the output rotating speed of the second double-sided tooth inner gear ring 27 and realizing stepless speed change can be achieved by controlling the rotating speed of the speed regulating motor 16.
The internal power flow of the two sets of planet gears during operation is described below. In the planetary gear, a planet carrier is used as a driving element, an inner gear ring and a sun gear are used as driven elements, when the two angular velocities are equal, the two resistances are equal, when the resistance of one resistance is one time of the resistance of the other resistance, the rotating speed of the element with large resistance is zero, and the middle of the element is linearly changed. When the sun gear and the inner gear ring are used as driving elements and the planet carrier is used as a driven element, the power of the sun gear and the power of the inner gear ring are equal, the angular speed of the sun gear and the inner gear ring is the same, when the power of one is doubled, the small rotating speed of the power is zero, and the middle part of the power is changed linearly. Thus, it can be seen that: in fig. 2, when the angular velocities of the third sun gear 10 and the second sun gear 28 are greater than the angular velocities of the third double-tooth ring gear 8 and the second double-tooth ring gear 27, the third sun gear 10 and the second sun gear 28 are feedback elements and are subjected to resistance equal to the obtained power. The second double-sided ring gear 27 as a driven element receives more power than the third double-sided ring gear 8 as a driving element, as an output element. The fifth carrier 24 as a driving element receives a larger resistance force than the power obtained by the third carrier 11 as a driven element, as an input element.
When the speed regulating motor 16 rotates to enable the angular speeds of the third double-sided tooth ring gear 8 and the second double-sided tooth ring gear 27 and the third sun gear 10 and the second sun gear 28 to be equal, the device can be self-locked, and no rotating torque is output.
The above is only one embodiment of the present continuously variable transmission, and other modes can be realized, based on the idea that: two groups of inner gear rings, planet carriers and sun gears of the two-stage planetary gears are respectively connected in series correspondingly, and the other group is connected in series through a speed-adjustable bevel gear. If the input is the sun gear, the outer gear ring or the planet carrier, the speed regulator shown in fig. 3 can be connected to the third double-sided tooth ring gear 8, the third planet gear 9 and the third sun gear 10 shown in fig. 2, or between the second double-sided tooth ring gear 27, the second planet gear 25 and the second sun gear 28, and any one of the above modes can achieve the purpose of regulating the speed through the speed regulating motor 16. Meanwhile, for the above proposed case of applying the external tooth difference, it is also possible to adopt such as: on the transmission line, the front-stage planetary gear set and the rear-stage planetary gear set can be realized through parameter setting of the front-stage sun gear, the rear-stage sun gear and the planet carrier. The above forms are all within the scope of the present invention.
In summary, stepless speed change is realized. Two groups of planetary gear ring gears, a planet carrier and a sun gear are connected to form a certain transmission difference. The other group is connected through a speed regulating device shown in figure 3, and the speed change of the sun gear, the planet carrier and the inner gear ring is controlled through the speed change of the speed regulating motor. Two groups of planetary gears form a circulating power flow, and the conception is as follows: the inner gear ring, the planet carrier and the sun gear are used as driving elements on one group of planetary gears and driven elements on the other group of planetary gears, resistance applied to the driving elements is smaller than power obtained by the driving elements in a certain rotating speed range, and the difference value is output. When the rotating speed is changed to be equal to the power and the resistance of the driving part and the driven part, the self-locking point is formed.
The continuously variable transmission can also be used as a mechanical flow divider, the speed of the second double-sided tooth ring gear 27 and the second sun gear 28 is controlled by the speed regulating motor 16, and when the second double-sided tooth ring gear 27 and the second sun gear 28 are loaded, the speed of the second double-sided tooth ring gear 27 and the second sun gear 28 can be accurately controlled.
Third part
The working principle of the stepless speed change part is introduced to realize stepless speed change by circulating power flow, so that the efficiency is not high. The third part is mainly to improve the efficiency of the continuously variable transmission, and the working principle is as shown in figure 1: the input shaft 1 is used as input, and one path is transmitted to a next-stage planetary gear through the first double-sided toothed inner gear ring 3, the first inner gear ring transmission gear 2 and the first inner gear ring transmission gear 29: the second double-sided toothed ring gear 30, the other path of which is input into the continuously variable transmission through the first sun gear 5 and the first planet carrier 6, and is input into a sixth sun gear 32 of the next-stage planetary gear through the continuously variable transmission. The output shaft 33 is driven by the second double-sided toothed ring gear 30 and the sixth sun gear 32. Since power flows back through the second double-sided toothed ring gear 30, the first ring gear transmission gear 29, the first ring gear transmission gear 2 and the first double-sided toothed ring gear 3 when the output speed change multiple of the continuously variable transmission is large, it is preferable that a one-way bearing 34 for the rotation direction of the corresponding connecting shaft is provided on the transmission path of the first ring gear transmission gear 29 and the first ring gear transmission gear 2 to prevent the power from flowing back. When the output of the double-sided toothed ring gear 27 of the continuously variable transmission is increased, the resistance increasing part of the power of the first sun gear 5 is transmitted to the sixth planet gear 31 through the first double-sided toothed ring gear 3, and is synthesized by the sixth sun gear 32 and the fifth ring gear 20 to be output by the output shaft 33. Since the sun gear and the inner gear ring have the same resistance when the angular velocities are the same, the first sun gear 5 can be made smaller than the sixth sun gear 32 in size parameter during specific application, so that more power flows through the outer gear ring to improve the efficiency.
Fourth section
For the control of the adjustable-speed motor, as shown in fig. 1, speed sensors are installed on the input shaft 1 and the output shaft 33 to input signals into a single chip microcomputer or a PLC to input speed control instructions, and the single chip microcomputer or a programmable controller outputs control information for controlling the rotating speed of the adjustable-speed motor 16 in fig. 1.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. For those skilled in the art to which the invention pertains, other embodiments that do not depart from the gist of the invention are intended to be within the scope of the invention.
Claims (10)
1. The utility model provides a continuously variable transmission, includes planetary gear, planetary gear includes ring gear, planet carrier and sun gear, its characterized in that, planetary gear is two sets ofly, and in two sets of planetary gear, ring gear, planet carrier, sun gear correspond the series connection: the inner gear rings of the two planetary gears are in transmission connection, and the sun gears of the two planetary gears are in transmission connection; the planet carriers of the two rows of gears are in transmission connection;
at least one group of the three groups of transmission connecting routes is constant-speed-difference variable-speed transmission;
the speed regulator is connected in series in one group of transmission connecting lines and is used for stepless adjustment of speed variation difference on the transmission connecting lines;
the transmission connecting line where the speed regulator is located and the transmission connecting line where the variable speed transmission is located are different transmission connecting lines.
2. The variable transmission of claim 1, wherein the speed governor comprises an adjustable speed motor and a conical gear coaxial with the adjustable speed motor and connected to a rotor of the adjustable speed motor, the conical gear being connected in series in a corresponding drive connection path.
3. A variable transmission as claimed in claim 1, wherein the planet carrier or sun gear of one of the two sets of planet gears serves as the input of the variable transmission, and the annulus gear of the other set of planet gears serves as the output of the variable transmission.
4. A continuously variable transmission as claimed in claim 1, characterised in that said fixed differential speed drive is any one of the following: in the two groups of planetary gears, the number of the outer teeth of the two inner gear rings is different; in the two sets of planetary gears, the number of teeth of the two planetary gears is different.
5. A continuously variable transmission as claimed in claim 1, wherein the annulus gears of the two planet gears are drivingly connected by: the two inner gear rings form a fixed transmission ratio transmission connection relationship through gears.
6. A continuously variable transmission as claimed in claim 5, characterised in that said fixed differential speed drive is: in the two groups of planetary gears, the number of teeth of the gears for realizing the transmission connection with a fixed transmission ratio is different.
7. A continuously variable transmission as claimed in claim 1, in which the speed adjusters are connected in series between the two planet carriers.
8. A variable transmission as claimed in claim 1, wherein the variator is connected in series between two sun gears.
9. A stepless speed regulation method is based on planetary gears, wherein the planetary gears comprise an inner gear ring, a planet carrier and a sun gear, and the stepless speed regulation method is characterized in that the planetary gears are divided into two groups, and in the two groups of planetary gears, the inner gear ring, the planet carrier and the sun gear are correspondingly connected in series: the inner gear rings of the two planetary gears are in transmission connection, and the sun gears of the two planetary gears are in transmission connection; the planet carriers of the two rows of gears are in transmission connection;
one of the three groups of transmission connecting routes is used as a power input route, the other two groups of transmission connecting routes are used as power feedback routes, and one of the other two groups of transmission connecting routes is also used as a power output route;
the power feedback route is used for realizing the rotation speed regulation of the power output route.
10. The application of a stepless speed changer as a power divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/089008 WO2022007471A1 (en) | 2020-07-09 | 2021-04-22 | Continuously variable transmission, continuously variable transmission method, and application |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020211579521 | 2020-06-19 | ||
| CN202021157952 | 2020-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111765222A true CN111765222A (en) | 2020-10-13 |
Family
ID=72726033
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010657285.1A Pending CN111765222A (en) | 2020-06-19 | 2020-07-09 | Continuously variable transmission, continuously variable transmission method and application |
| CN202021342888.4U Active CN212717847U (en) | 2020-06-19 | 2020-07-09 | Mechanical stepless speed changer |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021342888.4U Active CN212717847U (en) | 2020-06-19 | 2020-07-09 | Mechanical stepless speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111765222A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007471A1 (en) * | 2020-07-09 | 2022-01-13 | 熊一洲 | Continuously variable transmission, continuously variable transmission method, and application |
-
2020
- 2020-07-09 CN CN202010657285.1A patent/CN111765222A/en active Pending
- 2020-07-09 CN CN202021342888.4U patent/CN212717847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007471A1 (en) * | 2020-07-09 | 2022-01-13 | 熊一洲 | Continuously variable transmission, continuously variable transmission method, and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN212717847U (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6726590B2 (en) | Speed change transmission arrangement including a continuously variable toroidal transmission | |
| CN104747668A (en) | Stepless variable transmission for differential speed regulation of planetary gears | |
| CN101818796A (en) | The infinitely variable speed transmission that has offset output shaft | |
| CN106763565A (en) | It is suitable to the three gear planet speed change mechanisms that electric vehicle is used | |
| CN106015482A (en) | Mechanical variable chain wheel continuously variable transmission | |
| CN101555940B (en) | Accordant junction differential planetary gear train indefinitely variable transmission system | |
| CN103511568A (en) | Double planetary gear train type stepless automatic speed change mechanism | |
| CN212717847U (en) | Mechanical stepless speed changer | |
| CN103335075A (en) | Electronic control speed regulating stepless speed changing system and control method | |
| WO2022007471A1 (en) | Continuously variable transmission, continuously variable transmission method, and application | |
| CN108131430A (en) | A kind of contiuously variable transmission | |
| CN202392056U (en) | Continuously-variable transmission for non-conical gears | |
| CN215171932U (en) | Pure mechanical stepless speed change transmission device with output self-adaptive load characteristic | |
| CN108662096A (en) | Infinitely variable speed device | |
| CN103511563A (en) | Dual-planetary-gear-train continuously variable transmission mechanism | |
| CN103912653A (en) | Speed reducing device of torsion sensing differential planet gear system | |
| CN201419646Y (en) | Confluence differential infinitely variable driving gear | |
| CN210344181U (en) | Novel double-power input gearbox | |
| WO2012135936A1 (en) | Drivetrain provided with a cvt | |
| CN112555365A (en) | Stepless speed change system and method for rotor wing of double-engine helicopter | |
| CN219492961U (en) | Stepless differential speed variator | |
| CN1072341C (en) | Stepless gearing method and device | |
| CN103511562A (en) | Double planetary gear train type stepless automatic speed change mechanism | |
| CN103527730A (en) | Double-planetary-gear-train stepless automatic speed changing mechanism | |
| CN103511567A (en) | Double planetary gear train type stepless automatic speed change mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |