TW202043647A - Magnetic gear device with planetary conical variable transmission and controlling method thereof - Google Patents

Abstract

A magnetic gear device with planetary conical variable transmission is proposed. The magnetic gear device with planetary conical variable transmission driven by a power includes a magnetic gear structure and a planetary conical variable transmission structure. The magnetic gear structure includes an inner permanent magnet rotor assembly, a magnetic core ring assembly and an outer permanent magnet rotor assembly. The inner permanent magnet rotor assembly is rotated by the power. The magnetic core ring assembly is disposed outside of the inner permanent magnet rotor assembly and has a magnetic core rotational speed. The outer permanent magnet rotor assembly is disposed outside of the magnetic core ring assembly. The planetary conical variable transmission structure is connected to the magnetic core ring assembly of the magnetic gear structure. The planetary conical variable transmission structure includes a planetary conical friction assembly, a planetary transmission assembly and an output shaft assembly. The planetary conical friction assembly is connected to the magnetic core ring assembly. The magnetic core ring assembly is rotated to interlock the planetary conical friction assembly. The planetary transmission assembly is pivotally connected between the planetary conical friction assembly and the magnetic core ring assembly. The output shaft assembly is connected to the planetary conical friction assembly and has an output rotational speed. The magnetic core ring assembly is magnetically induced by the outer permanent magnet rotor assembly and the inner permanent magnet rotor assembly at the same time so as to change the magnetic core rotational speed. The magnetic core ring assembly is rotated to interlock the planetary conical friction assembly and the output shaft assembly so as to change the output rotational speed. The magnetic gear structure is coaxially rotated with the planetary conical variable transmission structure. Therefore, the magnetic gear device with planetary conical variable transmission of the present disclosure utilizes the magnetic gear structure combined with the planetary conical variable transmission structure to form a coaxial transmission structure, thereby outputting a relatively constant rotation.

Description

Planetary conical magnetic gear transmission device and control method thereof

The invention relates to a magnetic gear transmission device and a control method thereof, in particular to a planetary conical magnetic gear transmission device and a control method thereof.

Current continuously variable transmission devices are often used in two-wheel or four-wheel vehicles. The continuously variable transmission utilizes the traction of the frictional force at the contact between the master and slave components to transfer motion and torque from the driving component to the driven component, and changes the relative position of the master and follower to change the contact position. Working radius to achieve stepless speed change.

In the conventional continuously variable transmission device, the magnetic gear mechanism can realize the non-contact transmission effect. In addition, some scholars have proposed an integrated device of a magnetic gear mechanism and an outer rotor type permanent magnet motor to increase torque. However, such an integrated device needs to continuously control the speed of the motor to achieve the effect of stepless speed change. Furthermore, the programming of the motor control method is not easy, and the copper loss caused by the phase current of the motor coil windings will reduce the efficiency, thereby increasing the manufacturing cost of the device, reducing the operating efficiency and output stability. In addition, The traditional mechanical CVT device is likely to cause the gear pair in the transmission unit to collapse or damage the transmission pair of the CVT mechanism when overloaded.

It can be seen that there is currently a lack of a planetary conical magnetic gear transmission with a coaxial structure, high output stability, low cost, and overload protection and a control method thereof. Therefore, relevant industries are seeking solutions.

Therefore, the object of the present invention is to provide a planetary conical magnetic gear transmission, which combines a planetary conical continuously variable transmission mechanism through a magnetic gear mechanism to form a coaxial structure without the need for an external power connection device, which can make the overall output more stable and reduce Possible vibration and noise.

According to an embodiment of the structural aspect of the present invention, a planetary conical magnetic gear transmission is provided, which is driven by a power. The planetary conical magnetic gear transmission device includes a magnetic gear mechanism and a planetary conical stepless transmission mechanism. The magnetic gear mechanism includes a permanent magnet inner rotor group, a adjustable magnet core ring group, and a permanent magnet outer rotor group. The permanent magnet inner rotor group is driven by power to rotate. The adjustable magnet core ring group is arranged on the outer side of the permanent magnet inner rotor group and has a adjustable magnetic output speed. The permanent magnet outer rotor group ring is arranged on the outer side of the adjustable magnet core ring group. The planetary cone stepless speed change mechanism is connected to the core ring assembly of the magnetic gear mechanism. The planetary cone stepless speed change mechanism includes a planetary cone friction assembly, a planetary transmission assembly and an output shaft assembly. The planetary cone friction assembly is connected with the adjusting magnet core ring assembly, and the adjusting magnet core ring assembly rotates to link the planetary cone friction assembly. The planetary transmission assembly is pivotally connected to the planetary cone friction assembly and the adjusting magnet Between core ring groups. The output shaft assembly is connected to the planetary cone friction assembly and has an output speed. The adjustable magnet core ring group is simultaneously subjected to the magnetic coupling between the permanent magnet outer rotor group and the permanent magnet inner rotor group, so that the output speed of the magnetic adjustment can be changed. The adjusting magnet core ring assembly rotates to link the planetary cone friction assembly and the output shaft assembly, so as to change the output speed. The magnetic gear mechanism rotates coaxially with the planetary cone stepless speed change mechanism.

Therefore, the planetary conical magnetic gear transmission of the present invention uses a coaxial structure to combine the magnetic gear mechanism and the planetary conical continuously variable transmission mechanism, which requires less structural space, more compact mechanism and low cost. Furthermore, the planetary conical magnetic gear transmission of the present invention has the effect of overload protection. When overloaded, the magnetic gear will first cause torque loss and will not cause damage to other parts. In addition, the planetary conical magnetic gear transmission device of the present invention can avoid the backflow phenomenon of the mechanical components.

Other examples of the aforementioned embodiment are as follows: the aforementioned permanent magnet inner rotor assembly may include an inner ring magnet and an input shaft, the input shaft is driven to rotate by power, and the input shaft has an input speed and is connected to drive the inner ring magnet to rotate synchronously. In addition, the aforementioned adjustable magnet core ring group may include a adjustable magnetic shaft and a adjustable magnetic core ring, and the adjustable magnetic core ring is connected to drive the magnetic adjustable rotary shaft. The adjusting magnet core ring corresponds to the inner ring magnet and is separated from the inner ring magnet by a first distance. In addition, the aforementioned permanent magnet outer rotor assembly may include an outer ring base and an outer ring magnet, the outer ring magnet is connected to the outer ring base, and the outer ring magnet corresponds to the adjustable magnet core ring and is separated from the adjustable magnet core ring by a second distance. The magnet core ring, the inner ring magnet and the outer ring magnet are magnetically coupled, so that the magnetizing shaft rotates to have a magnetizing output speed.

Other examples of the foregoing embodiment are as follows: the planetary cone friction component may include a plurality of planet arms and a plurality of cone friction wheels, wherein the planet arms are connected to rotate by a modulated magnetic shaft, and the cone friction wheels are respectively arranged on the planet arms. The extending direction of each planetary arm intersects with the axial direction of the magnetic tuning shaft at an angle, which is greater than or equal to 15 degrees and less than or equal to 75 degrees. Furthermore, the aforementioned planetary transmission assembly may include a planetary transmission carrier body, a first bearing and a plurality of second bearings, wherein the first bearing has a first through hole, and the magnetization rotating shaft penetrates the first through hole. The first bearing is located in the center of the planetary transmission carrier body and is arranged between the planetary transmission carrier body and the magnetic adjusting shaft. Each second bearing is arranged between the planetary transmission carrier body and each planetary arm. The second bearings respectively have a plurality of second through holes, and the planetary arms respectively penetrate the second through holes. In addition, the aforementioned adjusting magnet core ring group further includes a first sun gear, and the first sun gear is disposed on the magnet adjusting shaft. Each planetary arm includes two planetary gears, the two planetary gears are respectively located at two opposite ends of each planetary arm, and one of the planetary gears corresponds to the first sun gear. The output shaft assembly includes a second sun gear, and the second sun gear is correspondingly engaged with another planet gear. In addition, the aforementioned planetary cone stepless speed change mechanism further includes a speed regulating ring, which is displaceably connected to the cone friction wheels, and there is a friction force and a speed ratio between the speed regulating ring and the cone friction wheels. The friction force is a fixed value, and the speed ratio changes with the relative displacement of each cone friction wheel and the speed control ring.

According to one embodiment of the method aspect of the present invention, there is provided a control method of a planetary conical magnetic gear transmission, which includes a driving step of a permanent magnet inner rotor group, a driving step of an adjustable magnet core ring group, and a planetary cone friction assembly driving Step and an output shaft assembly driving step, in which the permanent magnet The inner rotor group driving step provides power to drive the permanent magnet inner rotor group to rotate. The driving step of the adjustable magnet core ring group is to provide the permanent magnet inner rotor group and the permanent magnet outer rotor group magnetically coupled with the adjustable magnet core ring group, so as to change the magnetization output speed. The driving step of the planetary cone friction assembly drives the planetary cone friction assembly through the connection of the planetary transmission assembly and the rotating adjustable magnet core ring group. The driving step of the output shaft assembly is to use the rotating planetary cone friction assembly to drive the output shaft assembly to change the output speed. The magnetic gear mechanism rotates coaxially with the planetary cone stepless speed change mechanism.

Thereby, the control method of the planetary conical magnetic gear transmission of the present invention utilizes the driving connection and interaction between the magnetic gear mechanism and the planetary conical continuously variable transmission mechanism, so that the overall output is relatively stable, and vibration and noise can be reduced. In addition, in terms of speed control, the present invention can easily achieve the required output speed by changing the position of the speed control ring.

Other examples of the foregoing embodiments are as follows: one of the input shafts of the permanent magnet inner rotor group, one of the magnetic tuning shafts of the magnetic core ring group, and one of the output shafts of the output shaft assembly can rotate coaxially.

100‧‧‧Planetary conical magnetic gear transmission

200‧‧‧Magnetic gear mechanism

210‧‧‧Permanent magnet inner rotor group

212‧‧‧Inner ring magnet

214‧‧‧Input shaft

220‧‧‧Adjustable core ring group

222‧‧‧Tuning magnetic shaft

224‧‧‧Adjustable core ring

226‧‧‧First Sun Gear

230‧‧‧Permanent magnet outer rotor group

232‧‧‧Outer ring seat

2322‧‧‧Recess

234‧‧‧Outer ring magnet

236‧‧‧Outer cover

2362‧‧‧Protrusion

300‧‧‧Planetary cone stepless speed change mechanism

310‧‧‧Planetary cone friction assembly

312‧‧‧Planetary Arm

324‧‧‧First bearing

326‧‧‧Second Bearing

330‧‧‧Output shaft assembly

332‧‧‧Second Sun Gear

334‧‧‧Output shaft

340‧‧‧Speed control ring

342‧‧‧Speed Control Department

400‧‧‧Control method

S2‧‧‧Permanent magnet inner rotor group driving steps

S4‧‧‧Adjusting the driving steps of the core ring group

S6‧‧‧Planetary cone friction assembly driving steps

S8‧‧‧Output shaft assembly drive steps

D1‧‧‧First pitch

D2‧‧‧Second pitch

I, II, III, IV‧‧‧ Symbol

L‧‧‧Total length of conical slope

3122‧‧‧Planetary gear

314‧‧‧Conical friction wheel

320‧‧‧Planetary transmission assembly

322‧‧‧Planetary Transmission Carrier

X‧‧‧Location distance

R‧‧‧Radius

b‧‧‧Contact width

θ‧‧‧Included angle

Figure 1 is a schematic perspective view of a planetary conical magnetic gear transmission according to an embodiment of the present invention; Figure 2 is an exploded view of the planetary conical magnetic gear transmission of Figure 1; Figure 3 is a diagram showing The planetary bevel magnetic gear transmission in Figure 1 Partial cross-sectional view; Figure 4 shows the power flow diagram of the planetary conical magnetic gear transmission of Figure 1; Figure 5 shows the mechanism diagram of the planetary conical magnetic gear transmission of Figure 1; and Figure 6 It is a schematic flow chart of the operation method of the planetary conical magnetic gear transmission according to another embodiment of the present invention.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventionally used structures and elements will be shown in a simple schematic manner in the drawings; and repeated elements may be represented by the same number.

In addition, when an element (or mechanism or component, etc.) is "connected" or "disposed" to another element in this document, it can mean that the element is directly connected or directly disposed on another element, or that a certain element is Indirect connection or indirect arrangement to another element means that there is another element between the element and another element. When it is clearly stated that a certain element is "directly connected" or "directly set" to another element, it means that no other element is between the element and another element. The terms first, second, and third are only used to describe different elements or components, and there are no restrictions on the elements/components themselves. Therefore, the first element/component can also be referred to as the second element/component. And the combination of components/components/mechanisms/modules in this article is not a combination of general well-known, conventional or conventional in this field. It cannot be judged whether the combination relationship is based on whether the component/component/mechanism/module itself is conventional It can be easily completed by ordinary knowledgeable persons in the technical field.

Please refer to Figs. 1 to 5 together. Fig. 1 shows a three-dimensional schematic diagram of a planetary bevel magnetic gear transmission device 100 according to an embodiment of the present invention; Fig. 2 shows the planetary cone of Fig. 1 An exploded view of the magnetic gear transmission 100; Figure 3 shows a partial cross-sectional view of the planetary bevel magnetic gear transmission 100 of Figure 1; Figure 4 shows the planetary bevel magnetic gear transmission 100 of Figure 1 Power flow diagram; and Figure 5 is a schematic diagram showing the mechanism of the planetary conical magnetic gear transmission 100 of Figure 1. As shown in the figure, the planetary cone magnetic gear transmission device 100 is driven by a power and includes a magnetic gear mechanism 200 and a planetary cone continuously variable transmission mechanism 300.

The magnetic gear mechanism 200 includes a permanent magnet inner rotor group 210, an adjustable magnet core ring group 220 and a permanent magnet outer rotor group 230. The permanent magnet inner rotor group 210 is driven by power to rotate. The adjusting magnet core ring group 220 is ring-mounted on the outer side of the permanent magnet inner rotor group 210 and has a magnetizing output speed. The permanent magnet outer rotor group 230 is ring-mounted on the outer side of the adjustable magnet core ring group 220. In detail, the permanent magnet inner rotor assembly 210 includes an inner ring magnet 212 and an input shaft 214. The input shaft 214 is driven to rotate by power. The input shaft 214 has an input speed and is connected to drive the inner ring magnet 212 to rotate synchronously. The adjustable magnetic core ring assembly 220 includes a adjustable magnetic shaft 222 and a adjustable magnetic core ring 224. The adjustable magnetic core ring 224 is connected to drive the adjustable magnetic shaft 222. The adjusting magnet core ring 224 corresponds to the inner ring magnet 212 and is separated from the inner ring magnet 212 by a first distance D1. The permanent magnet outer rotor assembly 230 includes an outer ring base 232, an outer ring magnet 234, and an outer cover 236. The outer ring magnet 234 is connected to the outer ring base 232, and the outer ring magnet 234 corresponds to the adjustable magnet core ring 224 and is separated from the adjustable magnet core ring 224 A second distance D2. The adjusting magnet core ring 224, the inner ring magnet 212, and the outer ring magnet 234 are magnetically coupled, so that the magnetizing shaft 222 rotates to have a magnetizing output speed. The outer cover 236 covers the outer ring seat 232. In this embodiment, the outer ring seat 232 is in the shape of a circular groove and includes a ring groove wall. The outer ring magnet 234 is attached to the inner side of the ring groove wall to adjust the core ring 224 and the inner ring magnet 212 correspondingly. In other words, the outer ring magnet 234, the adjusting magnet core ring 224 and the inner ring magnet 212 are all located in the ring groove wall of the outer ring seat 232.

It can be seen from Figure 2 that the inner ring magnet 212 has an inner ring magnetic pole pair, and the inner ring magnetic pole pair number is equal to 8. In other words, the inner ring magnet 212 has 8 inner ring magnetic pole pairs, and each inner ring magnetic pole pair includes an N pole With an S pole. The adjustable magnetic core ring 224 has a number of adjustable magnetic cores, and the number of adjustable magnetic cores is equal to 25; in other words, the adjustable magnetic core ring 224 is composed of 25 adjustable magnetic cores, and the grids are arranged in a ring shape. The outer ring magnet 234 has an outer ring magnetic pole pair, and the outer ring magnetic pole pair number is equal to 17. In other words, the outer ring magnet 234 has 17 outer ring magnetic pole pairs, and each outer ring magnetic pole pair also includes an N pole and an S pole. The sum of the number of magnetic pole pairs in the inner ring and the number of magnetic pole pairs in the outer ring is equal to the number of magnet cores. Furthermore, the adjustable magnet core ring assembly 220 is simultaneously subjected to the magnetic coupling between the permanent magnet outer rotor assembly 230 and the permanent magnet inner rotor assembly 210, so that the magnetization output speed of the magnetization shaft 222 is changed.

The planetary cone stepless speed change mechanism 300 is connected to the adjustable magnet core ring group 220 of the magnetic gear mechanism 200, and the planetary cone stepless speed change mechanism 300 It includes a planetary cone friction component 310, a planetary transmission component 320 and an output shaft component 330. The planetary cone friction assembly 310 is connected to the adjusting magnet core ring assembly 220, and the adjusting magnet core ring assembly 220 rotates to link the planetary cone friction assembly 310. The planetary transmission assembly 320 is pivotally connected between the planetary cone friction assembly 310 and the adjusting magnet core ring assembly 220. The output shaft assembly 330 is connected to the planetary cone friction assembly 310 and has an output speed. The adjusting magnet core ring assembly 220 rotates to link the planetary cone friction assembly 310 and the output shaft assembly 330 to change the output speed. The magnetic gear mechanism 200 rotates coaxially with the planetary cone stepless speed change mechanism 300.

In detail, the planetary cone friction assembly 310 includes a plurality of planet arms 312 and a plurality of cone friction wheels 314. The planet arms 312 are connected to rotate by the modulated magnetic shaft 222, and the cone friction wheels 314 are respectively connected to the planet arms 312. The extending direction of each planetary arm 312 intersects the axial direction of the magnetic adjusting shaft 222 of the adjusting magnet core ring assembly 220 by an included angle θ, which is greater than or equal to 15 degrees and less than or equal to 75 degrees. Furthermore, the planetary transmission assembly 320 includes a planetary transmission carrier body 322, a first bearing 324 and a plurality of second bearings 326, wherein the planetary transmission carrier body 322 has a first bearing accommodating hole and a plurality of second bearing accommodating holes The first bearing receiving hole is used for receiving the first bearing 324, and the second bearing receiving hole is used for receiving the second bearing 326. The first bearing 324 has a first through hole, and the magnetic adjusting shaft 222 penetrates the first through hole. The first bearing 324 is located in the center of the planetary transmission carrier body 322 and is disposed between the planetary transmission carrier body 322 and the magnetic adjusting shaft 222. The second bearings 326 respectively have a plurality of second through holes, the planet arms 312 respectively penetrate the second through holes, and each second bearing 326 is disposed between the planetary transmission carrier body 322 and each planet arm 312. In addition, adjust the magnetic core The ring assembly 220 further includes a first sun gear 226, and the first sun gear 226 is disposed on the magnetizing shaft 222. Each planetary arm 312 includes two planetary gears 3122, the two planetary gears 3122 are respectively located at two opposite ends of each planetary arm 312, and one of the planetary gears 3122 of each planetary arm 312 is correspondingly engaged with the first sun gear 226. The output shaft assembly 330 includes a second sun gear 332 and an output shaft 334, the second sun gear 332 is connected to the output shaft 334, and the second sun gear 332 is correspondingly engaged with another planetary gear 3122 of each planetary arm 312. In addition, it can be seen from Fig. 1 and Fig. 2 that the input shaft 214 of the permanent magnet inner rotor assembly 210, the tuning shaft 222 of the tuning magnet core ring assembly 220, and the output shaft 334 of the output shaft assembly 330 rotate coaxially. The number of the planetary arm 312, the cone friction wheel 314, and the second bearing 326 in this embodiment are all three, and the included angle θ is equal to 30 degrees, but the present invention is not limited to this.

In addition, it is worth mentioning that the planetary cone stepless speed change mechanism 300 further includes a speed regulating ring 340. The speed regulating ring 340 is displaceably connected to the cone friction wheel 314. The speed regulating ring 340 and each cone friction wheel 314 There is a friction force and a speed ratio, wherein the friction force is a fixed value, and the speed ratio changes with the relative displacement of each cone friction wheel 314 and the speed regulating ring 340. The speed control ring 340 includes a speed control part 342, and the speed control part 342 has a convex shape for the user to control the position of the speed control ring 340. In addition, the ring groove wall of the outer ring seat 232 of the permanent magnet outer rotor assembly 230 includes a concave portion 2322, and the outer cover 236 includes a convex portion 2362, and the convex portion 2362 corresponds to a part of the insertion concave portion 2322. When the outer cover 236 is connected to the outer ring seat 232, a speed regulating hole is formed between the concave portion 2322 of the outer ring seat 232 and the convex portion 2362 of the outer cover 236. The speed regulating hole can connect the inner and outer parts of the outer ring seat 232 The speed control part 342 of the speed control ring 340 can penetrate and protrude from the speed control hole of the outer ring seat 232 to facilitate user control.

In the planetary cone continuously variable transmission mechanism 300, the moduli of the first sun gear 226, the planetary gear 3122, and the second sun gear 332 are all the same. The gear ratio of the planetary gear 3122 (the planetary gear 3122 corresponding to the second sun gear 332) and the second sun gear 332 is less than 10. The number of gears of any planetary gear 3122 (the planetary gear 3122 corresponding to the first sun gear 226) is less than or equal to 3 times the number of gears of the first sun gear 226. Any two adjacent planetary gears 3122 cannot collide with each other, that is, there is a certain gap between the tooth tops of any two adjacent planetary gears 3122 on the connecting line. Furthermore, in this embodiment, the total length L of the conical slope of the conical friction wheel 314 is less than or equal to 20 mm, and the position distance X of the speed regulating ring 340 is greater than or equal to 2 mm and less than or equal to 18 mm. The radius R of the speed control ring 340 is greater than or equal to 75 mm and less than or equal to 100 mm. The contact width b between the speed regulating ring 340 and the conical friction wheel 314 is 2 mm, but the present invention is not limited to the above.

Figure 4 is a power flow diagram of a basic loop N(i,j)k. The power flow diagram of the present invention can clearly understand the power transmission situation of each mechanism element. The hollow circle represents the N-th basic loop. This embodiment The N is represented by the symbols I, II, III, IV, that is, there are four basic loops. The solid black dots represent the mechanism components i, j, and k connected to the Nth basic circuit. The mechanism components of this embodiment are the inner ring magnet 212, the adjusting magnet core ring 224, the outer ring magnet 234, the conical friction wheel 314, and the planetary transmission assembly 320. The second sun gear 332 and the speed control ring 340. Table 1 shows the transmission power of each mechanism element. If the value of the transmitted power is positive, it means that the power flows out from the mechanism component; if the transmitted power The value of the rate is negative, indicating that the power flows in from the mechanism element. The transmission power can be calculated through the product of the rotation speed and the torque. For example, the inner ring magnet 212 rotates at a torque of 5.00 Nt-m and a rotation speed of 100.00 rad/sec, and its transmission power is 500.00 Watt. The planetary conical magnetic gear transmission 100 of the present invention does not form a phenomenon of "work backflow" during power transmission. The work return is the flow of power to form a closed loop between the mechanism components. The work return will reduce the transmission efficiency of the mechanism components and may cause some mechanism components to bear excessive torque. Therefore, the planetary conical magnetic gear transmission device 100 of the present invention combines the magnetic gear mechanism 200 and the planetary conical continuously variable transmission mechanism 300 through a coaxial structure, so as to avoid the phenomenon of work backflow of the mechanism components. Under the condition of no redundant components and reactive power backflow, the transmission efficiency of the planetary conical magnetic gear transmission 100 can reach 82.16% (that is, equal to 410.79/500.00).

Therefore, the planetary conical magnetic gear transmission 100 of the present invention uses a coaxial structure to combine the magnetic gear mechanism 200 and the planetary conical continuously variable transmission mechanism 300. There is no need to add a power connection device in the integration plan, so that the overall output is relatively stable, and Reduce possible vibration and noise. In addition, the function of the magnetic gear mechanism 200 is equivalent to a set of basic planetary gear assemblies, but the number of components is less than that of the basic planetary gear assemblies, so the required structural space is smaller, the mechanism is more compact and the cost is lower. In addition, the traditional mechanical continuously variable transmission device is likely to cause the gear pair in the transmission unit to collapse or damage the transmission pair of the continuously variable transmission mechanism when overloaded, while the planetary conical magnetic gear transmission device 100 of the present invention has the effect of overload protection. , When overloaded, the magnetic gear will cause the torque to lose step first, and will not cause damage to other parts.

Please refer to FIGS. 1 to 6 together. FIG. 6 is a schematic flowchart of a control method 400 of a planetary conical magnetic gear transmission 100 according to another embodiment of the present invention. The operation method 400 of the planetary conical magnetic gear transmission 100 includes a permanent magnet inner rotor assembly driving step S2, an adjustable magnet core ring assembly driving step S4, a planetary cone friction assembly driving step S6, and an output shaft assembly driving step S8.

The permanent magnet inner rotor group driving step S2 is to provide power to drive the permanent magnet inner rotor group 210 to rotate. The driving step S4 of the adjustable magnet core ring assembly is to provide the permanent magnet inner rotor assembly 210 and the permanent magnet outer rotor assembly 230 to magnetically couple the adjustable magnet core ring assembly 220, so as to change the magnetization output speed. The planetary cone friction assembly driving step S6 is to drive the planetary cone friction assembly 310 by connecting the planetary transmission assembly 320 and the rotating adjustable magnet core ring assembly 220. The output shaft assembly driving step S8 uses the rotating planetary cone friction assembly 310 to drive the output shaft The component 330 can change the output speed. The magnetic gear mechanism 200 rotates coaxially with the planetary conical stepless speed change mechanism 300; in other words, the input shaft 214 of the permanent magnet inner rotor assembly 210, the magnetic tuning shaft 222 of the tuning magnet core ring assembly 220, and the output shaft 334 of the output shaft assembly 330 are Coaxial rotation. Thereby, the control method 400 of the planetary bevel magnetic gear transmission device 100 of the present invention utilizes the driving connection and interaction between the magnetic gear mechanism 200 and the planetary bevel continuously variable transmission mechanism 300, so that the overall output is relatively stable and can be reduced. Vibration and noise.

It can be seen from the above embodiments that the present invention has the following advantages: First, the use of a coaxial structure combined with a magnetic gear mechanism and a planetary cone continuously variable transmission mechanism does not require an external power connection device in the integration planning, which can make the overall output more stable and reduce Possible vibration and noise. In addition, the function of the magnetic gear mechanism is equivalent to a set of basic planetary gear assemblies, but the number of components is less than that of the basic planetary gear assemblies, so the required structural space is smaller, the mechanism is more compact and the cost is lower. Second, the traditional mechanical continuously variable transmission device is easy to cause the gear pair in the transmission unit to collapse or damage the transmission pair of the continuously variable transmission mechanism when overloaded, while the planetary bevel magnetic gear transmission device of the present invention has the effect of overload protection , When overloaded, the magnetic gear will cause the torque to lose step first, and will not cause damage to other parts. Third, the planetary conical magnetic gear transmission of the present invention can avoid the backflow of mechanical components, and its transmission efficiency can reach 82.16% under the condition of no redundant components and reactive backflow. Fourth, in terms of speed control, the required output speed can be easily achieved by changing the position of the speed control ring.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone familiar with the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to those defined in the attached patent scope.

100‧‧‧Planetary conical magnetic gear transmission

200‧‧‧Magnetic gear mechanism

210‧‧‧Permanent magnet inner rotor group

212‧‧‧Inner ring magnet

300‧‧‧Planetary cone stepless speed change mechanism

310‧‧‧Planetary cone friction assembly

312‧‧‧Planetary Arm

214‧‧‧Input shaft

220‧‧‧Adjustable core ring group

222‧‧‧Tuning magnetic shaft

224‧‧‧Adjustable core ring

226‧‧‧First Sun Gear

230‧‧‧Permanent magnet outer rotor group

232‧‧‧Outer ring seat

2322‧‧‧Recess

234‧‧‧Outer ring magnet

236‧‧‧Outer cover

2362‧‧‧Protrusion

3122‧‧‧Planetary gear

314‧‧‧Conical friction wheel

320‧‧‧Planetary transmission assembly

322‧‧‧Planetary Transmission Carrier

324‧‧‧First bearing

326‧‧‧Second Bearing

330‧‧‧Output shaft assembly

332‧‧‧Second Sun Gear

334‧‧‧Output shaft

340‧‧‧Speed control ring

342‧‧‧Speed Control Department

Claims (10)

A planetary conical magnetic gear transmission device is driven by a power. The planetary conical magnetic gear transmission device includes: a magnetic gear mechanism, including: a permanent magnet inner rotor group, which is driven to rotate by the power; an adjustable magnetic core ring Group, ringed on the outer side of the permanent magnet inner rotor group and having a magnetic output speed; and a permanent magnet outer rotor group ringed on the outer side of the adjustable magnet core ring group; and a planetary cone stepless speed change mechanism , Connecting the adjustable magnet core ring set of the magnetic gear mechanism, the planetary cone stepless speed change mechanism includes: a planetary cone friction assembly connected to the adjustable magnet core ring assembly, the adjustable magnet core ring assembly rotates to link the planetary cone Friction assembly; a planetary transmission assembly, pivotally connected between the planetary cone friction assembly and the adjusting core ring group; and an output shaft assembly, connected to the planetary cone friction assembly and having an output speed; wherein, the adjusting core The ring assembly is simultaneously subjected to the magnetic coupling between the permanent magnet outer rotor assembly and the permanent magnet inner rotor assembly, so as to cause the magnetization output speed to change; wherein, the adjustment magnet core ring assembly rotates to link the planetary cone friction assembly and the output Shaft assembly to change the output speed; Wherein, the magnetic gear mechanism rotates coaxially with the planetary cone stepless speed change mechanism. The planetary conical magnetic gear transmission device described in the first item of the scope of patent application, wherein the permanent magnet inner rotor group includes: an inner ring magnet; and an input shaft driven to rotate by the power, the input shaft having an input The speed and connection drive the inner ring magnet to rotate synchronously. For the planetary conical magnetic gear transmission device described in item 2 of the scope of patent application, the adjustable magnetic core ring set includes: a magnetic adjustable rotating shaft; and a magnetic adjustable magnetic core ring connected to drive the magnetic adjustable rotating shaft, and the adjustable magnetic core The ring corresponds to the inner ring magnet and is separated from the inner ring magnet by a first distance. For the planetary conical magnetic gear transmission device described in item 3 of the scope of patent application, the permanent magnet outer rotor group includes: an outer ring seat; and an outer ring magnet connected to the outer ring seat, and the outer ring magnet corresponds to The adjustable magnetic core ring is separated from the adjustable magnetic core ring by a second distance; wherein, the adjustable magnetic core ring, the inner ring magnet and the outer ring magnet are magnetically coupled, so that the magnetic adjustable shaft rotates to have the magnetic adjustable output Rotating speed. The planetary conical magnetic gear transmission according to item 3 of the scope of patent application, wherein the planetary cone friction assembly includes: a plurality of planetary arms connected to rotate by the magnetizing shaft; and a plurality of conical friction wheels respectively arranged on the planets Arm; wherein, the extending direction of each planetary arm and the axial direction of the magnetizing shaft intersect an included angle, the included angle is greater than or equal to 15 degrees and less than or equal to 75 degrees. The planetary conical magnetic gear transmission according to item 5 of the scope of patent application, wherein the planetary transmission assembly includes: a planetary transmission carrier body; a first bearing with a first through hole, and the magnetization rotating shaft penetrates the first Perforation, the first bearing is located in the center of the planetary transmission carrier body and is arranged between the planetary transmission carrier body and the magnetizing shaft; and a plurality of second bearings respectively have a plurality of second perforations, and the planetary arms respectively penetrate the Some second holes, each of the second bearings is arranged between the planetary transmission carrier body and each of the planetary arms. According to the planetary conical magnetic gear transmission device described in item 5 of the scope of patent application, wherein the adjusting magnet core ring set further includes a first sun gear, and the first sun gear is disposed on the magnet adjusting shaft; Each of the planetary arms includes two planetary gears, the two planetary gears are respectively located at two opposite ends of each of the planetary arms, one of the planetary gears is correspondingly engaged with the first sun gear; and the output shaft assembly includes a second sun gear, The second sun gear meshes with another planet gear correspondingly. For the planetary conical magnetic gear transmission device described in item 5 of the scope of patent application, the planetary conical continuously variable transmission mechanism further includes: a speed regulating ring movably connected to the conical friction wheels, the speed regulating ring and There is a friction force and a speed ratio between each of the cone friction wheels, the friction force is a fixed value, and the speed ratio changes with the relative displacement of each cone friction wheel and the speed regulating ring. A control method applied to the planetary conical magnetic gear transmission as described in item 1 of the scope of patent application, including the following steps: a permanent magnet inner rotor group driving step, which provides the power to drive the permanent magnet inner rotor group to rotate A step of driving the adjustable magnet core ring group is to provide the permanent magnet inner rotor group and the permanent magnet outer rotor group to magnetically couple the adjustable magnet core ring group, so as to change the magnetization output speed; A driving step of the planetary cone friction assembly is to drive the planetary cone friction assembly through the connection of the planetary transmission assembly and the rotating core ring assembly; and a driving step of the output shaft assembly is to drive the planetary cone friction assembly through the connection of the rotating planetary cone friction assembly The output shaft assembly changes the output speed; wherein, the magnetic gear mechanism and the planetary cone continuously variable transmission mechanism rotate coaxially. The control method of the planetary conical magnetic gear transmission as described in item 9 of the scope of patent application, wherein one of the input shafts of the permanent magnet inner rotor group, one of the regulating magnet core ring group and the output shaft assembly An output shaft rotates coaxially.

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