CN216975700U

CN216975700U - Torque-adjustable magnetic transmission planetary speed reducer

Info

Publication number: CN216975700U
Application number: CN202122389924.3U
Authority: CN
Inventors: 王守文
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-07-15
Anticipated expiration: 2031-09-29

Abstract

A torque-adjustable magnetic transmission planetary reducer relates to the field of speed reducers. The planet wheel comprises at least two permanent magnets and a first annular shell, and the permanent magnets are alternately arranged in the first annular shell according to the positive and negative magnetism; one end of the input shaft penetrates through the sun gear and is connected with the planet carrier disc, and the planet gear is rotatably connected with the planet carrier disc; the number of the planet wheels is at least two, the planet wheels are uniformly distributed around the center of the sun wheel, and the permanent magnets of the planet wheels are magnetically connected with the permanent magnets of the sun wheel; the first magnetic ring comprises at least two permanent magnets and a second annular shell, and the permanent magnets are alternately arranged in the second annular shell according to the positive and negative magnetism; the permanent magnet of planet wheel and the permanent magnet magnetism of magnetosphere are connected. The device has the advantages that: through the magnetic property of the planet wheel, the power for continuously rotating is provided, the direct contact is avoided, and the damage caused by friction is reduced. Adjusting their output torque.

Description

Torque-adjustable magnetic transmission planetary speed reducer

Technical Field

The utility model relates to the field of speed reducers, in particular to a torque-adjustable magnetic transmission planetary speed reducer.

Background

The traditional mechanical speed reducer has the functions of matching the rotating speed and transmitting the torque between a prime mover and a working machine or an actuating mechanism, and is a relatively precise machine. Its purpose is to reduce the speed and increase the torque. Because the traditional planetary reducer rotates and transmits torque by meshing gears with gears, and the gears are meshed by contact friction transmission, the traditional planetary reducer cannot bear ultrahigh rotating speed transmission abrasion. In the prior art, magnetic force is used for replacing gear friction, and the problem of high-speed rotation is solved, but the conventional magnetic speed reducer is generally in single-point transmission, has small conduction torque, and is easy to cause the stalling and damage of a motor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that the magnetic speed reducer is in single-point transmission, the transmission torque is small, and the friction is large, so that the locked rotor and the damage of a motor are easily caused, the utility model adopts the following technical scheme:

a torque-adjustable magnetic transmission planetary reducer comprises an input shaft, a planet carrier disc, a planet wheel, a sun wheel and a magnetic ring; the planetary gear comprises at least two permanent magnets and a first annular shell, the at least two permanent magnets are alternately arranged in the first annular shell according to the positive and negative magnetism, and the number of the permanent magnets is even; the planet carrier comprises a planet carrier disc and an output shaft, the planet carrier disc is connected with the output shaft, the input shaft is connected with the sun wheel in a penetrating way, and the planet carrier disc is rotatably connected with the planet wheel; the number of the planet wheels is at least two, the planet wheels are uniformly distributed around the center of the sun wheel, and the permanent magnets of the planet wheels are magnetically connected with the permanent magnets of the sun wheel; the magnetic ring comprises at least two permanent magnets, the number of the permanent magnets is even, and the at least two permanent magnets are alternately connected into a ring according to the positive and negative magnetism; the permanent magnet of planet wheel and the permanent magnet magnetism of magnetosphere are connected. The axial distance between the sun wheel and the planet wheel is adjustable, the axial distance between the planet wheel and the magnetic ring is adjustable, and the sun wheel and the planet wheel are arranged in the magnetic ring.

Specifically, the first annular shell is internally provided with cavities, the number of the cavities is the same as that of the permanent magnets, each cavity is provided with a boss, the permanent magnets are provided with grooves, and the grooves of the permanent magnets are clamped with the bosses.

Specifically, the magnetic ring further comprises a second annular shell, cavities are formed in the second annular shell, the number of the cavities is the same as that of the permanent magnets, bosses are arranged on each cavity, grooves are formed in the permanent magnets, and the grooves of the permanent magnets are clamped with the bosses.

Specifically, there are three planet gears.

Specifically, the planet wheel is folded and is arranged under the sun wheel, and the magnetic ring is arranged above the three planet wheels. Through planet wheel and sun gear axial magnetic attraction rotation, planet wheel and the rotation of magnetic ring axial magnetic attraction realize the axial transmission speed reduction, and the working face between planet wheel and the magnetic ring is for the face, and the transmission moment of torsion is little.

Specifically, the planet wheel is arranged in an inner ring of the second annular shell, and the planet wheel, the sun wheel and the magnetic ring wheel are arranged on the same horizontal plane. Through planet wheel and sun gear axial magnetic attraction rotation, planet wheel and the radial magnetic attraction rotation of magnetosphere realize radial transmission and slow down, and the working face between planet wheel and the magnetosphere is a straight line, and the transmission moment of torsion is little.

Specifically, the planet carrier disc is sleeved in an inner ring of the second magnetic ring, a permanent magnet of the planet wheel is magnetically connected with a permanent magnet of the second magnetic ring, and the second magnetic ring and the planet carrier disc are arranged on the same horizontal plane. Through the axial transmission, the planet wheel is upper and lower face with the effect face between first magnetosphere and the second magnetosphere respectively, and the transmission moment of torsion is little.

Drawings

FIG. 1 is a schematic view of a radial multi-point transmission structure of an adjustable torque magnetic transmission planetary reducer;

FIG. 2 is a schematic diagram of an axial multi-point transmission structure of an adjustable torque magnetic transmission planetary reducer;

FIG. 3 is a schematic diagram of an axial double-sided transmission structure of an adjustable torque magnetic transmission planetary reducer;

FIG. 4 is a schematic view of the structure of the annular housing of the magnetic ring of the adjustable torque magnetic transmission planetary reducer;

FIG. 5 is a schematic diagram of the structure of the annular housing of the planet wheel of the adjustable torque magnetic transmission planetary reducer;

reference numerals are as follows: 1 an input shaft; 2 a planet carrier disc; 3, a sun wheel; 4 a first magnetic ring; 5 a planet wheel; 6 a second magnetic ring; 7, an inner ring; 8 chambers; 9 a second annular housing; 10 first annular housing.

Detailed Description

Example 1:

The utility model is further described below with reference to fig. 1 and 4.

A torque-adjustable magnetic transmission planetary reducer comprises an input shaft 1, a planet carrier disc 2, a sun gear 3 and a planet gear 5; planet wheel 5 is the same with sun gear 3's size, and the planet wheel includes 6 permanent magnets and 1 first annular casing 10, has seted up cavity 8 in the first annular casing 10, is provided with the boss in the cavity 8, has seted up the recess on the permanent magnet, the recess card and the boss joint of permanent magnet. In order to realize the rotation process, the principle that the permanent magnets repel each other in the same magnetism and attract each other in the opposite polarity is utilized to realize the magnetic transmission process after the planet wheel rotates, so that the permanent magnets are alternately arranged in the first annular shell 10 according to the positive and negative magnetism. There are 3

planet wheels

5 and 1 sun wheel 3. One end of the input shaft 1 is fixedly connected with the planet carrier disc 2, and one end of the input shaft 1 passes through the annular housing inner ring of the sun gear 3 and is fixedly connected. In order to realize the first-stage speed reduction of the axial multi-point transmission, the planet wheels 5 are rotatably connected with the planet carrier disc 2 through a connecting shaft, the permanent magnets of the 3 planet wheels 5 are in ferromagnetic connection with the permanent magnet of the sun wheel 3, and the three planet wheels 5 are overlapped under the sun wheel 3 to realize the axial magnetic connection. In order to realize two-stage speed reduction, a first magnetic coil 4 is also arranged, the first magnetic coil 4 comprises 18 permanent magnets and a second annular shell 9, and the 18 permanent magnets are alternately arranged in the second annular shell 9 according to the positive and negative magnetism; the permanent magnet of planet wheel 5 is connected with the permanent magnet magnetism of first magnetosphere 4, and first magnetosphere 4 folds and locates directly over planet wheel 5, realizes axial magnetism and connects. The first magnetic ring 4 is connected with an external speed reducing device.

When the torque-adjustable magnetic transmission planetary reducer operates, the input shaft 1 rotates to drive the sun wheel 3 to rotate in the same direction, in addition, the 3 planetary wheels 5 and the sun wheel 3 can rotate independently and are arranged under the sun wheel 3 and are in magnetic connection, the permanent magnets of the overlapped parts are attracted by the opposite magnetic poles in the axial direction, the 3 planetary wheels 5 rotate in the same direction under the action of the permanent magnets of the opposite poles of the sun wheel 3, after the planetary wheels rotate by a deviation angle, the permanent magnets are repelled by the same magnetic poles in the axial direction to continue to rotate, and the planetary wheels return to the opposite attraction state, so that primary transmission speed reduction is realized. When 3 planet wheel 5 rotated, the permanent magnetism son of overlapping first magnetosphere 4 that sets up on sun gear 3 relied on to receive opposite poles to inhale the axial magnetism effect, and first magnetosphere 4 rotates along with 3 planet wheel 5 syntropys, when rotating an angle, receives the effect that axial homopolar repulsion simultaneously again and continues to rotate, realizes secondary drive speed reduction like this.

As can be seen from the above description, the device has the following advantages:

(1) when the unlike magnetic poles attract each other, the unlike magnetic poles can transmit torque without contact, and when the like magnetic poles attract each other, power for continuous rotation is provided. Compared with the traditional gear, the gear has the advantages that contact is avoided, and damage caused by friction is reduced.

(2) The suction force of the sun wheel and the planet wheel fixed on the planet carrier disc can be adjusted by adjusting the distance between the sun wheel and the planet wheel, and the output torque of the first-stage speed reduction can be adjusted; the distance between the planet wheel and the magnetic ring in the vertical direction is adjusted, so that the suction force between the planet wheel and the magnetic ring can be adjusted, and the output torque of the secondary speed reduction can be adjusted.

(3) Through axial transmission, the acting surface between planet wheel and the magnetic ring is the face, and the transmission moment of torsion is little.

Example 2:

the utility model is further described below in connection with fig. 2 and 4.

A torque-adjustable magnetic transmission planetary reducer comprises an input shaft 1, a planet carrier disc 2, a sun gear 3 and a planet gear 5. The planet wheels 5 and the sun wheel 3 are of the same size. Planet wheel 5 includes 6 permanent magnets and 1 first annular casing 10, has seted up cavity 8 in the first annular casing 10, is provided with the boss in the cavity 8, has seted up the recess on the permanent magnet, the recess card and the boss joint of permanent magnet. In order to realize the rotation process, the magnetic transmission process after the planet wheel rotates is realized by utilizing the principle that the permanent magnets repel each other due to the same magnetism and attract each other due to the opposite polarities, so that the permanent magnets are alternately arranged in the first annular shell 10 according to the positive and negative magnetism. The planetary wheels comprise 3 planetary wheels 5 and one sun wheel 3. One end of the input shaft 1 is fixedly connected with the planet carrier disc 2, and one end of the input shaft 1 penetrates through the sun gear 3 and is fixedly connected with the sun gear 3. In order to realize the primary speed reduction of the axial multi-point transmission, the other 3 planet wheels 5 are rotatably connected with the planet carrier disc 2 through a connecting shaft, the permanent magnets of the 3 planet wheels 5 are in ferromagnetic connection with the permanent magnet of the sun wheel 3, and the three planet wheels 5 and the sun wheel 3 are arranged in the same horizontal plane to realize radial magnetic connection. In order to realize the two-stage speed reduction, a first magnetic coil 10 is also arranged, the first magnetic coil 10 comprises 18 permanent magnets and a second annular shell 9, and the permanent magnets are alternately arranged in the second annular shell 9 according to the positive and negative magnetism; the permanent magnet of planet wheel 5 is connected with the radial magnetism of the permanent magnet of first magnetosphere 10, and first magnetosphere 10, planet wheel 5, sun gear 3 set up in same horizontal plane. The first magnetic coil 10 is connected to an external reduction gear.

When the torque-adjustable magnetic transmission planetary reducer operates, the input shaft 1 rotates to drive the sun gear 3 to rotate in the same direction, in addition, 3 planetary gears 5 and the sun gear 3 can rotate independently and are arranged on the same horizontal plane, permanent magnets opposite to the planetary gears and the sun gear 3 are attracted by radial opposite poles to rotate in the same direction, after the planetary gears rotate by a deviation angle, the planetary gears are repelled by radial like poles to continuously push and rotate, and the planetary gears return to the opposite pole attraction state, so that primary transmission speed reduction is realized. Similarly, the planet wheel 5 and the permanent magnet of the first magnetic ring 4 are under the action of opposite attraction radial magnetism, the first magnetic ring 4 rotates along with the planet wheel 5 in the same direction, and when the planet wheel rotates for an angle, the planet wheel continues to rotate under the action of radial repelling of the same polarity, so that secondary transmission deceleration is realized.

1. when the unlike magnetic poles attract each other, the unlike magnetic poles can transmit torque without contact, and when the like magnetic poles attract each other, power for continuous rotation is provided. Compared with the traditional gear, the gear has the advantages that contact is avoided, and damage caused by friction is reduced.

2. The suction force of the sun wheel and the planet wheel can be adjusted by adjusting the distance between the sun wheel and the planet wheel, and the output torque of the first-stage speed reduction can be adjusted; the distance between the planet wheel and the magnetic ring in the horizontal direction is adjusted, so that the suction force between the planet wheel and the magnetic ring can be adjusted, and the output torque of the secondary speed reduction can be adjusted.

3. Through radial transmission, the acting surface between the planet wheel and the magnetic ring is a straight line, and the transmission torque is small.

Example 3:

the utility model is further described below in connection with fig. 3 and 4.

A torque-adjustable magnetic transmission planetary reducer comprises an input shaft 1, a planet carrier disc 2, a sun gear 3, a planet gear 5, a first magnetic ring 4 and a second magnetic ring 6. The planet wheel 5 and the sun wheel 3 are the same in size, and the first magnetic ring 4 and the second magnetic ring 6 are the same in size. The planet wheel includes 6 permanent magnets and 1 first annular casing 10, has seted up cavity 8 in the first annular casing 10, is provided with the boss in the cavity 8, has seted up the recess on the permanent magnet, the recess card and the boss joint of permanent magnet. In order to realize the rotation process, the magnetic transmission process after the planet wheel rotates is realized by utilizing the principle that the permanent magnets repel each other due to the same magnetism and attract each other due to the opposite polarities, so that the permanent magnets are alternately arranged in the first annular shell 10 according to the positive and negative magnetism. The planet wheels comprise 3 planet wheels 5 and one sun wheel 3. One end of the input shaft 1 is fixedly connected with the planet carrier disc 2, and the input shaft 1 penetrates through the sun gear 3 and is fixedly connected with the sun gear 3. In order to realize the primary speed reduction of the axial multi-point transmission, the other 3 planet wheels 5 are rotatably connected with the planet carrier disc 2 through a connecting shaft, the permanent magnets of the 3 planet wheels 5 are in ferromagnetic connection with the permanent magnet of the sun wheel 3, and the three planet wheels 5 are overlapped under the sun wheel 3 to realize the axial magnetic connection. In order to realize the two-stage speed reduction, a first magnetic coil 4 and a second magnetic coil 6 are also arranged, the first magnetic coil 4 and the second magnetic coil 6 both comprise 18 permanent magnets and a second annular shell 9, and the permanent magnets are alternately arranged in the second annular shell 9 according to the positive and negative magnetism; the permanent magnet of planet wheel is connected with the permanent magnet magnetism of first magnetosphere 4 and second magnetosphere 6 respectively, and first magnetosphere 4 is folded and is located the planet wheel directly over, realizes axial magnetism and connects. The planet carrier disc 2 is sleeved in the second annular shell 9 inner ring of the second magnetic ring 6, the planet carrier disc 2 and the second magnetic ring 6 are in the same horizontal plane, so that the planet wheel 5 of the second magnetic ring 6 is under the planet wheel 5, and the permanent magnet of the planet wheel 5 is magnetically connected with the permanent magnet of the second magnetic ring 6, so that the axial magnetic connection is realized. The first magnetic coil 4 and the second magnetic coil 6 are connected with an external speed reduction device.

When the torque-adjustable magnetic transmission planetary reducer operates, the input shaft 1 rotates to drive the sun gear 3 to rotate in the same direction, the planet gear 5 and the sun gear 3 can rotate independently, the planet gear 5 is arranged right below the sun gear 3, the permanent magnets at the overlapped parts are attracted by the axial opposite poles to rotate in the same direction, after the permanent magnets rotate by a deviation angle, the permanent magnets are repelled by the axial same poles to continue to rotate, and the permanent magnets rotate back to the opposite pole attraction state, so that primary transmission speed reduction is realized. Similarly, the first magnetic ring 4 and the second magnetic ring 6 which are respectively arranged on the planet wheel 5 in an up-down overlapping mode are under the action of opposite attraction axial magnetism, the first magnetic ring 4 and the second magnetic ring 6 rotate along with the planet wheel 5 in the same direction, and when the first magnetic ring 4 and the second magnetic ring rotate through an angle, the first magnetic ring and the second magnetic ring continue to rotate under the action of axial repulsion, so that secondary transmission speed reduction is achieved. The rotation efficiency is improved through the magnetic action of the two surfaces.

2. The suction force of the sun wheel and the sun wheel can be adjusted by adjusting the distance between the sun wheel and the sun wheel, and the output torque of the first-stage speed reduction can be adjusted; the distance between the planet wheel and the first magnetic ring and the distance between the planet wheel and the second magnetic ring in the vertical direction are adjusted, so that the attraction force between the planet wheel and the first magnetic ring and the attraction force between the planet wheel and the second magnetic ring can be adjusted, and the output torque of the secondary speed reduction can be adjusted.

3. Through the axial transmission, the planet wheel is upper and lower face with the effect face between first magnetosphere and the second magnetosphere respectively, and the transmission moment of torsion is little.

It should be understood that the detailed description of the utility model is only for illustrating the utility model and is not limited to the technical solutions described in the embodiments of the utility model. It will be understood by those skilled in the art that the present invention may be modified and equivalents substituted for elements thereof to achieve the same technical result; and are within the scope of the present invention as long as the requirements of use are met.

Claims

1. A torque-adjustable magnetic transmission planetary reducer is characterized by comprising an input shaft, a planet carrier disc, a planet wheel, a sun wheel and a magnetic ring; the planet wheel and the sun wheel both comprise at least two permanent magnets and a first annular shell, the at least two permanent magnets are alternately arranged in the first annular shell according to the positive and negative magnetism, and the number of the permanent magnets is even; the planet carrier comprises a planet carrier disc and an output shaft, the planet carrier disc is connected with the output shaft, the input shaft is connected with the sun gear in a penetrating way, and the planet carrier disc is rotatably connected with the planet gear; the number of the planet wheels is at least two, the planet wheels are uniformly distributed around the center of the sun wheel, and the permanent magnets of the planet wheels are magnetically connected with the permanent magnets of the sun wheel; the magnetic ring comprises at least two permanent magnets, the number of the permanent magnets is even, and the at least two permanent magnets are alternately connected into a ring according to the positive and negative magnetism; the permanent magnet of planet wheel with the permanent magnet magnetism of magnetosphere is connected, the sun gear with the axial distance between the planet wheel is adjustable, the planet wheel with the axial distance between the magnetosphere is adjustable, the projection of sun gear with the planet wheel is located in the magnetosphere.

2. The planetary reducer according to claim 1, wherein the first annular housing has cavities therein, the number of the cavities is the same as the number of the permanent magnets, each cavity has a boss, the permanent magnet has a groove, and the groove of the permanent magnet is engaged with the boss.

3. The torque-adjustable magnetic transmission planetary reducer according to claim 1, wherein the magnetic ring further comprises a second annular shell, cavities are formed in the second annular shell, the number of the cavities is the same as that of the permanent magnets, a boss is arranged on each cavity, a groove is formed in each permanent magnet, and the groove of each permanent magnet is clamped with the boss.

4. The adjustable torque magnetic drive planetary reducer of claim 1, where there are three of the planets.

5. The torque-adjustable magnetic transmission planetary reducer according to claim 4, wherein the planet wheels are stacked right below the sun wheel, and the magnetic ring is stacked right above the three planet wheels.

6. The torque-adjustable magnetic drive planetary reducer of claim 3, wherein the planet gears are disposed in an inner ring of the second annular housing, and the planet gears, the sun gear, and the magnetic ring are disposed on the same horizontal plane.

7. The torque-adjustable magnetic transmission planetary reducer according to claim 5, further comprising a second magnetic ring, wherein the planet carrier disc is sleeved in an inner ring of the second magnetic ring, the permanent magnet of the planet wheel is magnetically connected with the permanent magnet of the second magnetic ring, and the second magnetic ring and the planet carrier disc are arranged on the same horizontal plane.