CN111478551A - Magnetic transmission with brake mechanism - Google Patents
Magnetic transmission with brake mechanism Download PDFInfo
- Publication number
- CN111478551A CN111478551A CN202010440615.1A CN202010440615A CN111478551A CN 111478551 A CN111478551 A CN 111478551A CN 202010440615 A CN202010440615 A CN 202010440615A CN 111478551 A CN111478551 A CN 111478551A
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- output
- gear
- conversion
- support
- bracket
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
A magnetic transmission with a braking mechanism comprises a fixed support and a transmission, wherein the transmission is fixed through the fixed support; the speed changer mainly comprises an input bracket, an output bracket, a conversion bracket, N driving magnetic blocks, N centrifugal blocks, M driven magnetic blocks and a brake mechanism; the fixed support is provided with the braking mechanism, the output rod on the output support is used for impacting the shifting block to open the braking mechanism to release the fixed driven magnetic block when rotating, and the driving magnetic block on the output rod is very close to the corresponding driven magnetic block fixed by the braking mechanism, so that strong repulsive force can be generated to push the conversion support to rotate rapidly, non-contact acceleration is realized, and the reduction of energy loss in the speed change process is facilitated.
Description
Technical Field
The invention belongs to a magnetic transmission with a braking mechanism, and belongs to the optimization technology of transmissions.
Background
In the field of automation, a transmission is a common component. A transmission is a mechanism for changing the speed and torque from an engine, which can change the ratio of the output shaft to the input shaft, either fixed or in steps, also known as a gearbox. The speed variator consists of speed-changing transmission mechanism and control mechanism, and some vehicles also have power output mechanism. The transmission mechanism is mainly driven by common gears and also driven by planetary gears. The speed changer mainly changes speed through meshing between gears with different diameters, the meshing between the gears is rigid connection, part of energy is consumed by friction force between components, and particularly when acceleration is needed, the energy loss causes the acceleration performance to be reduced, so that a speed changer with better acceleration performance needs to be found.
In the magnetic transmission of the present application No. 2020102088756, a motor drives a power gear to rotate counterclockwise through a power shaft, the power gear drives an input gear with a diameter smaller than that of the power gear to rotate clockwise to realize a first acceleration, the input gear drives an input bracket, an output bracket, a driving magnet and a centrifugal block to rotate clockwise synchronously, the centrifugal block generates a centrifugal force during rotation to accelerate the rotation, then when one end of the driving magnet in the clockwise direction is close to a driven magnet with the same magnetism during rotation, the same magnetism generates a strong repulsive force to push the driven magnet and a conversion bracket fixedly connected with the driven magnet to rotate clockwise, the distance from the driven magnet to the conversion bracket center is smaller than that from the driving magnet to the input bracket center, the rotation speed of the conversion bracket is higher than that of the input bracket, the conversion bracket rotates clockwise to drive a conversion gear meshed with the driving magnet to rotate, the conversion gear drives the output gear with smaller diameter to rotate to realize multiple acceleration, the output gear rotates with the output shaft meshed with the output gear at the same speed, and the conversion bracket is pushed to rotate by the aid of the Bayer supporting force generated by the driving magnetic block and the driven magnetic block in the rotating process to realize non-contact acceleration, so that energy loss in the speed changing process is reduced. The driving magnetic block and the driven magnetic block are arranged in a rotating way, the driving magnetic block and the driven magnetic block are driven to rotate in a rotating way, the driving magnetic block. Therefore, a method for making the driving magnetic block closer to the driven magnetic block to start rotating the driven magnetic block is needed.
Disclosure of Invention
The purpose of the invention is: the braking mechanism for the passive magnetic block is provided, and the passive magnetic block is released only when the driving magnetic block is very close to the passive magnetic block, so that the repulsive force generated between the driving magnetic block and the passive magnetic block is larger, and the acceleration performance of the magnetic speed changer is better.
The technical scheme of the invention is as follows: a magnetic transmission with a braking mechanism comprises a fixed support and a transmission, wherein the transmission is fixed through the fixed support; the speed changer mainly comprises an input bracket 1, an output bracket 2, a conversion bracket 3, N driving magnetic blocks 4, N centrifugal blocks 5, M driven magnetic blocks 6 and a brake mechanism 7; the input support and the output support are identical in structure, same in size and arranged oppositely, N input rods are arranged on the input support, N corresponding output rods are arranged on the output support, and a driving magnetic block 4 and a centrifugal block 5 are sequentially fixed to the tail ends, far away from the center, of each input rod and the corresponding output rod in a clockwise direction, so that the input support and the output support are locked together; the input support comprises a connecting frame, an input bearing, a connecting bearing and an input gear; the passive magnetic block 6 is arranged on the conversion bracket 3; the conversion bracket is fixed on the fixed bracket through the connecting bracket; the magnetism of one end of the driving magnetic block in the anticlockwise direction is the same as that of one end of the driven magnetic block in the clockwise direction; the input gear is fixed in the middle of the outward end face of the input bracket and is meshed with the power gear; the diameter of the input gear is smaller than that of the power gear; the output bracket 2 also comprises an output shaft 21, an output bearing 22, an output fixing frame 23, an output gear 24 and a turntable bearing 25; an output hole is formed in the center of the output support, the output bearing 22 is arranged in the output hole, an output frame protruding outwards is arranged on one side of one end of the output fixing frame 23, a rotating shaft hole is formed in the other end of the output fixing frame, the output fixing frame is fixed on the fixing support through the output frame, an output shaft hole penetrating through the output fixing frame is formed in the output frame, and the output shaft can rotate in the output shaft hole; the output shaft is provided with an output key matched with a key groove in the central hole of the output gear, the output shaft is inserted into an output shaft hole of the output fixing frame, so that the output key of the output shaft enters the corresponding key groove in the central hole of the output gear, the output frame of the output fixing frame is inserted into a central through hole of the output bearing, so that the output bracket can rotate around the output frame under the action of external force, and the turntable bearing 25 is arranged in a rotating shaft hole; when the output gear rotates, the output gear drives the output shaft meshed with the output gear to rotate to output power; the braking mechanism 7 comprises a base 71, a shifting block 72, a pinion 73, a bull gear 74, a pinion shaft lever 75, a bull gear shaft lever 76, a pressure spring adjusting plate 77, a spring, a movable seat 78, a friction plate 79 and an adjusting screw, and is fixed at the tail end of the lower part of the output fixing frame through the base; the output fixing frame is directly welded on the output fixing frame in a welding mode; a fixing block 711 is arranged on one side of the base 71, and a buckle is arranged at the tail end of the fixing block; the upper part of the other side of the base is provided with an upper connecting lug 712 which protrudes outwards, and the lower part is provided with a lower connecting lug 713 which protrudes outwards; one side of the movable seat 78, which is close to the upper connecting lug and the lower connecting lug, is provided with a movable post 781 protruding towards the base, the movable post is provided with a through movable through hole, one side of the movable post, which is close to the fixed block, is provided with a barrier strip 782 protruding towards the direction far away from the base, and a friction plate 79 is fixed on the movable seat between the barrier strip and the movable post; the movable seat presses the spring and the pressure spring adjusting plate on the base, so that the buckle is pressed on the movable seat outside the barrier strip, the upper connecting lug is provided with a large-tooth screw hole corresponding to the large-tooth shaft rod, and the upper connecting lug is also provided with a small-tooth screw hole corresponding to the small-tooth shaft rod; correspondingly, the lower connecting lug is provided with a large tooth hole corresponding to the large tooth shaft rod and a small tooth hole corresponding to the small tooth shaft rod; one side of the big gear is provided with a big tooth tongue protruding outwards, and the edge of the movable through hole is provided with a corresponding movable groove; the threaded tail end of the large-tooth shaft rod sequentially passes through the large tooth hole, the large gear and the movable through hole from bottom to top and then is screwed on the large-tooth screw hole, so that a large tooth tongue on the large gear enters the movable groove to form occlusion; the threaded tail end of the small shaft screw sequentially penetrates through the small tooth hole, the pinion and the shifting block and then is screwed on the small tooth screw hole, so that the pinion and the shifting block are meshed; the bull gear and the pinion gear are meshed with each other.
The braking mechanism further comprises an adjusting screw, an adjusting screw hole is formed in the base, the adjusting screw is screwed on the adjusting screw hole, the tail end of the adjusting screw penetrates through the base and abuts against the back face of the pressure spring adjusting plate, the length of the tail end of the adjusting screw, which crosses the base, is changed through rotating the adjusting screw, the compression procedure of the spring can be changed, and therefore the initial prestress of the spring is changed.
And a buffer cushion is arranged on the wall surface of the barrier strip facing the friction plate.
Be equipped with inside sunken spring hole on the wall of sliding seat towards the base, the spring gets into the spring hole towards the end of sliding seat, prevents that the spring from taking place axial displacement in the use.
The spring seat is arranged on the pressure spring adjusting plate, and the spring sleeve is not easy to deflect and move axially on the spring seat.
Advantageous effects
1. The fixed bracket is provided with the braking mechanism, the output rod on the output bracket is utilized to impact the shifting block when rotating to open the braking mechanism to release the fixed passive magnetic block, and the active magnetic block on the output rod is very close to the corresponding passive magnetic block fixed by the braking mechanism, so that strong repulsive force can be generated to push the conversion bracket to rapidly rotate, non-contact acceleration is realized, and the reduction of energy loss in the speed change process is facilitated;
2. the motor works to drive the power gear to rotate anticlockwise through the power shaft, the power gear drives the input gear with the diameter smaller than that of the power gear to rotate clockwise to realize first acceleration, the input gear drives the input bracket, the output bracket, the driving magnetic block and the centrifugal block to rotate clockwise synchronously, the centrifugal block generates centrifugal force in the rotation process to accelerate the rotation, then when one end of the driving magnetic block in the clockwise direction is close to a driven magnetic block with the same magnetism locked by the braking mechanism in the rotation process, one output rod of the output bracket impacts the shifting block to open the locked conversion bracket, the driving magnetic block corresponding to the output rod generates strong repulsive force due to the fact that the driving magnetic block is close to the driven magnetic block locked by the braking mechanism, the repulsive force pushes the driven magnetic block and the conversion bracket fixedly connected with the driven magnetic block to rotate clockwise, and the rotation speed of the conversion bracket is higher than that, the conversion bracket rotates clockwise to drive the conversion gear meshed with the conversion bracket to rotate, the conversion gear drives the output gear with smaller diameter to rotate to realize multiple acceleration, and the output gear rotates at the same speed as the meshed output shaft to output power.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic partial cross-sectional view of the present invention;
FIG. 3 is a schematic partial burst view of FIG. 2;
FIG. 4 is a schematic burst view of the present invention;
FIG. 5 is a schematic view of an output bracket and brake mechanism of the present invention;
FIG. 6 is a schematic diagram of the explosion of FIG. 5;
FIG. 7 is a burst view of the braking mechanism of the present invention;
FIG. 8 is an angled perspective view of the braking mechanism of the present invention;
FIG. 9 is a schematic view of another angle of the braking mechanism of the present invention;
FIG. 10 is a schematic view of a base of the present invention;
fig. 11 is a schematic view of the movable seat of the present invention.
Detailed Description
As shown in fig. 1 to 11, a magnetic transmission with a brake mechanism includes a fixing bracket and a transmission fixed by the fixing bracket.
The fixed support comprises a base, an input seat and an output seat, the input seat and the output seat are fixed on the base, and the transmission is arranged between the input seat and the output seat; the power gear is fixed on the input seat, a power shaft of the engine is meshed with the central through hole of the power gear, and the power gear is driven by the power shaft to rotate in the same direction and at the same speed when the engine works.
The structure of the magnetic force transmission with the braking mechanism is the same as that of the magnetic force transmission with the application number of 2020102088756 except for the braking mechanism.
The speed changer mainly comprises an input bracket 1, an output bracket 2, a conversion bracket 3, N driving magnetic blocks 4, N centrifugal blocks 5, M driven magnetic blocks 6 and a brake mechanism 7; the input support and the output support are identical in structure, same in size and arranged oppositely, N input rods are arranged on the input support, N corresponding output rods are arranged on the output support, and a driving magnetic block 4 and a centrifugal block 5 are sequentially fixed to the tail ends, far away from the center, of each input rod and the corresponding output rod in a clockwise direction, so that the input support and the output support are locked together; the input support comprises a connecting frame, an input bearing, a connecting bearing and an input gear; the passive magnetic block 6 is arranged on the conversion bracket 3.
The fixed support is provided with the braking mechanism, the output rod on the output support is used for impacting the shifting block to open the braking mechanism to release the fixed driven magnetic block when rotating, and the driving magnetic block on the output rod is very close to the corresponding driven magnetic block fixed by the braking mechanism, so that strong repulsive force can be generated to push the conversion support to rotate rapidly, non-contact acceleration is realized, and the reduction of energy loss in the speed change process is facilitated.
The conversion bracket is fixed on the input seat through a connecting frame; the magnetism of one end of the driving magnetic block in the anticlockwise direction is the same as that of one end of the driven magnetic block in the clockwise direction;
one end of a conversion key shaft in the center of the conversion bracket, which faces the output fixing frame, is inserted into the turntable bearing, so that the conversion bracket can rotate in a rotating shaft hole on the output fixing frame under the action of external force; the two conversion supports are parallel and are connected by a conversion column with a conversion hole in the center, key grooves are arranged on the inner walls of the conversion holes, correspondingly, key grooves identical to the conversion holes are also arranged in the central through hole of the conversion gear, keys matched with the conversion holes and the central through hole of the conversion gear are arranged outside the conversion key shaft, and the conversion key shaft is inserted into the conversion holes and the central through hole of the conversion gear, so that the conversion supports, the conversion key shaft and the conversion gear shaft are mutually meshed; each conversion support comprises M conversion rods protruding outwards, the conversion rods are arranged eccentrically, an included angle between every two adjacent conversion rods is 360 degrees except M degrees, and a driven magnetic block is fixed at the tail ends of the two conversion rods at the same position through screws.
The input gear is fixed in the middle of the outward end face of the input bracket and is meshed with the power gear; the diameter of the input gear is smaller than the diameter of the power gear. (ii) a
The output bracket 2 further comprises an output shaft 21, an output bearing 22, an output fixing frame 23, an output gear 24 and a turntable bearing 25.
An output hole is formed in the center of the output support, the output bearing 22 is arranged in the output hole, an output frame protruding outwards is arranged on one side of one end of the output fixing frame 23, a rotating shaft hole is formed in the other end of the output fixing frame, the output fixing frame is fixed on the fixing support through the output frame, an output shaft hole penetrating through the output fixing frame is formed in the output frame, and the output shaft can rotate in the output shaft hole; the output shaft is provided with an output key matched with a key groove in the central hole of the output gear, the output shaft is inserted into an output shaft hole of the output fixing frame, so that the output key of the output shaft enters the corresponding key groove in the central hole of the output gear, the output frame of the output fixing frame is inserted into a central through hole of the output bearing, so that the output bracket can rotate around the output frame under the action of external force, and the turntable bearing 25 is arranged in a rotating shaft hole; when the output gear rotates, the output gear drives the output shaft meshed with the output gear to rotate to output power.
The braking mechanism 7 comprises a base 71, a shifting block 72, a pinion 73, a bull gear 74, a pinion shaft lever 75, a bull gear shaft lever 76, a pressure spring adjusting plate 77, a spring, a movable seat 78, a friction plate 79 and an adjusting screw, and is fixed at the tail end of the lower part of the output fixing frame through the base; the welding is usually performed directly on the output fixing frame.
A fixing block 711 is arranged on one side of the base 71, and a buckle is arranged at the tail end of the fixing block; the upper part of the other side of the base is provided with an upper connecting lug 712 which protrudes outwards, and the lower part is provided with a lower connecting lug 713 which protrudes outwards; one side of the movable seat 78, which is close to the upper connecting lug and the lower connecting lug, is provided with a movable post 781 protruding towards the base, the movable post is provided with a through movable through hole, one side of the movable post, which is close to the fixed block, is provided with a barrier strip 782 protruding towards the direction far away from the base, and a friction plate 79 is fixed on the movable seat between the barrier strip and the movable post; the movable seat presses the spring and the pressure spring adjusting plate on the base, so that the buckle is pressed on the movable seat outside the barrier strip, the upper connecting lug is provided with a large-tooth screw hole corresponding to the large-tooth shaft rod, and the upper connecting lug is also provided with a small-tooth screw hole corresponding to the small-tooth shaft rod; correspondingly, the lower connecting lug is provided with a large tooth hole corresponding to the large tooth shaft rod and a small tooth hole corresponding to the small tooth shaft rod; one side of the big gear is provided with a big tooth tongue protruding outwards, and the edge of the movable through hole is provided with a corresponding movable groove; the threaded end of the large-tooth shaft rod sequentially passes through the large tooth hole, the large gear and the movable through hole from bottom to top and then is screwed on the large-tooth screw hole, so that the large tooth tongue on the large gear enters the movable groove to form occlusion.
The threaded tail end of the small shaft screw sequentially penetrates through the small tooth hole, the pinion and the shifting block and then is screwed on the small tooth screw hole, so that the pinion and the shifting block are meshed; the bull gear and the pinion gear are meshed with each other.
The braking mechanism further comprises an adjusting screw, an adjusting screw hole is formed in the base, the adjusting screw is screwed on the adjusting screw hole, the tail end of the adjusting screw penetrates through the base and abuts against the back face of the pressure spring adjusting plate, the length of the tail end of the adjusting screw, which crosses the base, is changed through rotating the adjusting screw, the compression procedure of the spring can be changed, and therefore the initial prestress of the spring is changed.
The wall surface of the barrier strip facing the friction plate is provided with the buffer pad, so that the rigid impact between the conversion support and the barrier strip is avoided.
Be equipped with inside sunken spring hole on the wall of sliding seat towards the base, the spring gets into the spring hole towards the end of sliding seat, prevents that the spring from taking place axial displacement in the use. The spring is preferably a barrel spring.
The spring seat is arranged on the pressure spring adjusting plate, and the spring sleeve is not easy to deflect and move axially on the spring seat.
When the number of the switching rods is four, the switching support is not cross-shaped, but is arranged in a staggered manner as shown in the attached drawing, so that the extension lines of two opposite switching rods cannot intersect, and the included angle of all adjacent switching rods is ensured to be 90 degrees.
The distance between the passive magnetic block and the center of the conversion support is smaller than the distance between the active magnetic block and the center of the input support.
And corresponding snap rings are pressed in the snap ring grooves at the two ends of the conversion key shaft exposed out respectively to prevent the conversion key shaft from being separated from the conversion gear and the conversion hole.
When the motor works, the power gear is driven by the power shaft to rotate anticlockwise, the power gear drives the input gear meshed with the power gear to rotate clockwise, the input gear further drives the input bracket fixed with the input gear through the input pin to rotate clockwise synchronously, so as to drive the output bracket fixed with the input bracket, the driving magnetic block and the centrifugal block to rotate clockwise, the centrifugal block generates centrifugal force under the influence of gravity in the process of rotating clockwise along with the input bracket and the output bracket, the centrifugal force generates acceleration action on the clockwise rotation of the input bracket and the output bracket, when the driving magnetic block rotates clockwise to be close to the driven magnetic block on the conversion bracket, the repulsive force is generated because the magnetism of the driving magnetic block and the driven magnetic block, the repulsive force pushes the conversion bracket to rotate clockwise, the conversion bracket rotates clockwise to drive the conversion gear to rotate clockwise, and then the output gear meshed with the conversion gear rotates, the output gear drives the output shaft meshed with the output gear to rotate anticlockwise to output power.
Because the output fixing frame is fixed on the fixed support and can not rotate, when a conversion rod of the conversion support rotates to the brake block, the surface of the brake block is rubbed to brake forcibly, so that the conversion support is decelerated to stop rotating, if the brake block can not completely stop the conversion support from rotating, the conversion rod can collide with a barrier strip at the tail end of the brake block to brake, the input support and the output support continue to drive the driving magnetic block to rotate to a driven magnetic block close to the static state, the output support collides with the shifting block, the shifting block rotates to drive the pinion to rotate clockwise, further, the bull gear meshed with the pinion is driven to rotate anticlockwise, further, the compression spring of the movable seat meshed with the bull gear is driven to deform towards the direction of the base, the movable seat leaves the conversion rod braked by the movable seat, the conversion support is released, and at the moment, the driven magnetic block fixed on the conversion rod generates repulsive force, the conversion bracket is driven to rotate clockwise, the conversion bracket rotates to drive the conversion gear to rotate clockwise, the conversion gear rotates clockwise to drive the output gear meshed with the conversion gear to rotate anticlockwise, and the output gear drives the output shaft meshed with the conversion gear to rotate anticlockwise to output power.
After the brake mechanism releases the conversion support, the spring can generate reset force due to compression to push the movable seat to reset, so that the large gear is driven to rotate clockwise, and the small gear is driven to rotate anticlockwise to reset. After the braking mechanism is reset, any one conversion rod in the conversion support rotates and reaches the braking mechanism, the conversion support is braked, the conversion support stops rotating until one output rod on the output support impacts a shifting block on the braking mechanism again, the braking mechanism is opened again to release the conversion support, the conversion support is pushed by a repulsive force generated between a group of driving magnetic blocks and a group of driven magnetic blocks which are close to each other to rapidly rotate to output power, and the operation is repeated in such a way until the motor stops working.
The rotating speed of the conversion bracket is higher than that of the input bracket and the output bracket to realize speed change, when the output bracket rotates to the conversion rod again and reaches the brake mechanism, the brake mechanism can be braked again until the output bracket rotates to stir the shifting block to open the brake mechanism, the conversion bracket rotates again under the influence of the repulsive force between the passive magnetic block and the active magnetic block, and the steps are repeated in such a circulating way to realize speed change.
The instant rotating speed of the conversion bracket is larger than that of the input bracket, the rotating speed of the input bracket is constant, the conversion bracket rotates rapidly at one moment, stops at one moment and rotates rapidly at the next moment, and the rotating amplitude of each time is less than or equal to 90 degrees.
The motor works to drive the power gear to rotate anticlockwise through the power shaft, the power gear drives the input gear with the diameter smaller than that of the power gear to rotate clockwise to realize first acceleration, the input gear drives the input bracket, the output bracket, the driving magnetic block and the centrifugal block to rotate clockwise synchronously, the centrifugal block generates centrifugal force in the rotation process to accelerate the rotation, then when one end of the driving magnetic block in the clockwise direction is close to a driven magnetic block with the same magnetism locked by the braking mechanism in the rotation process, one output rod of the output bracket impacts the shifting block to open the locked conversion bracket, the driving magnetic block corresponding to the output rod generates strong repulsive force due to the fact that the driving magnetic block is close to the driven magnetic block locked by the braking mechanism, the repulsive force pushes the driven magnetic block and the conversion bracket fixedly connected with the driven magnetic block to rotate clockwise, and the rotation speed of the conversion bracket is higher than that, the conversion bracket rotates clockwise to drive the conversion gear meshed with the conversion bracket to rotate, the conversion gear drives the output gear with smaller diameter to rotate to realize multiple acceleration, and the output gear rotates with the output shaft meshed with the output gear at the same speed to output power to realize multi-stage speed change.
The centrifugal block can accelerate the rotating speed of the driving magnetic block, and can make up for energy loss caused by meshing between the power gear and the input gear and meshing between the conversion gear and the output gear.
The above-mentioned embodiments are only used for illustrating the application of the present invention, and are not meant to be limiting, and those skilled in the art should make various changes or substitutions within the spirit of the present invention, and shall fall within the protection scope of the present invention.
Claims (6)
1. A magnetic transmission with a braking mechanism comprises a fixed support and a transmission, wherein the transmission is fixed through the fixed support; the method is characterized in that: the speed changer mainly comprises an input support (1), an output support (2), a conversion support (3), N driving magnetic blocks (4), N centrifugal blocks (5), M driven magnetic blocks (6) and a brake mechanism (7); the input support and the output support are identical in structure, same in size and arranged oppositely, N input rods are arranged on the input support, N corresponding output rods are arranged on the output support, and a driving magnetic block (4) and a centrifugal block (5) are sequentially fixed to the tail ends, far away from the center, of each input rod and the corresponding output rod in a clockwise direction, so that the input support and the output support are locked together; the input support comprises a connecting frame, an input bearing, a connecting bearing and an input gear; the passive magnetic block (6) is arranged on the conversion bracket (3); the conversion bracket is fixed on the fixed bracket through the connecting bracket; the magnetism of one end of the driving magnetic block in the anticlockwise direction is the same as that of one end of the driven magnetic block in the clockwise direction; the input gear is fixed in the middle of the outward end face of the input bracket and is meshed with the power gear; the diameter of the input gear is smaller than that of the power gear; the output support (2) also comprises an output shaft (21), an output bearing (22), an output fixing frame (23), an output gear (24) and a turntable bearing (25); an output hole is formed in the center of the output support, the output bearing (22) is arranged in the output hole, an output frame protruding outwards is arranged on one side of one end of the output fixing frame (23), a rotating shaft hole is formed in the other end of the output fixing frame, the output fixing frame is fixed on the fixing support through the output frame, an output shaft hole penetrating through the output fixing frame is formed in the output frame, and the output shaft can rotate in the output shaft hole; the output shaft is provided with an output key matched with a key groove in the central hole of the output gear, the output shaft is inserted into an output shaft hole of the output fixing frame, so that the output key of the output shaft enters the corresponding key groove in the central hole of the output gear, the output frame of the output fixing frame is inserted into a central through hole of the output bearing, so that the output support can rotate around the output frame under the action of external force, and the turntable bearing (25) is arranged in a rotating shaft hole; when the output gear rotates, the output gear drives the output shaft meshed with the output gear to rotate to output power; the brake mechanism (7) comprises a base (71), a shifting block (72), a pinion (73), a large gear (74), a small gear shaft lever (75), a large gear shaft lever (76), a pressure spring adjusting plate (77), a spring, a movable seat (78), a friction plate (79) and an adjusting screw, and is fixed at the tail end of the lower part of the output fixing frame through the base; the output fixing frame is directly welded on the output fixing frame in a welding mode; one side of the base (71) is provided with a fixed block (711), and the tail end of the fixed block is provided with a buckle; the upper part of the other side of the base is provided with an upper connecting lug (712) which protrudes outwards, and the lower part of the base is provided with a lower connecting lug (713) which protrudes outwards; one side of the movable seat (78) close to the upper connecting lug and the lower connecting lug is provided with a movable post (781) protruding towards the base direction, the movable post is provided with a through movable through hole, one side of the movable post close to the fixed block is provided with a barrier strip (782) protruding towards the direction far away from the base, and a friction plate (79) is fixed on the movable seat between the barrier strip and the movable post; the movable seat presses the spring and the pressure spring adjusting plate on the base, so that the buckle is pressed on the movable seat outside the barrier strip, the upper connecting lug is provided with a large-tooth screw hole corresponding to the large-tooth shaft rod, and the upper connecting lug is also provided with a small-tooth screw hole corresponding to the small-tooth shaft rod; correspondingly, the lower connecting lug is provided with a large tooth hole corresponding to the large tooth shaft rod and a small tooth hole corresponding to the small tooth shaft rod; one side of the big gear is provided with a big tooth tongue protruding outwards, and the edge of the movable through hole is provided with a corresponding movable groove; the threaded tail end of the large-tooth shaft rod sequentially passes through the large tooth hole, the large gear and the movable through hole from bottom to top and then is screwed on the large-tooth screw hole, so that a large tooth tongue on the large gear enters the movable groove to form occlusion; the threaded tail end of the small shaft screw sequentially penetrates through the small tooth hole, the pinion and the shifting block and then is screwed on the small tooth screw hole, so that the pinion and the shifting block are meshed; the bull gear and the pinion gear are meshed with each other.
2. The magnetic transmission with a braking mechanism of claim 1, wherein: the braking mechanism further comprises an adjusting screw, an adjusting screw hole is formed in the base, the adjusting screw is screwed on the adjusting screw hole, the tail end of the adjusting screw penetrates through the base and abuts against the back face of the pressure spring adjusting plate, the length of the tail end of the adjusting screw, which crosses the base, is changed through rotating the adjusting screw, the compression procedure of the spring can be changed, and therefore the initial prestress of the spring is changed.
3. The magnetic transmission with a braking mechanism of claim 1, wherein: and a buffer cushion is arranged on the wall surface of the barrier strip facing the friction plate.
4. The magnetic transmission with a braking mechanism of claim 1, wherein: be equipped with inside sunken spring hole on the wall of sliding seat towards the base, the spring gets into the spring hole towards the end of sliding seat, prevents that the spring from taking place axial displacement in the use.
5. The magnetic transmission with a braking mechanism of claim 1, wherein: the spring seat is arranged on the pressure spring adjusting plate, and the spring sleeve is not easy to deflect and move axially on the spring seat.
6. The magnetic transmission with a braking mechanism of claim 1, wherein: when the motor works, the power gear is driven by the power shaft to rotate anticlockwise, the power gear drives the input gear meshed with the power gear to rotate clockwise, the input gear further drives the input bracket fixed with the input gear through the input pin to rotate clockwise synchronously, so as to drive the output bracket fixed with the input bracket, the driving magnetic block and the centrifugal block to rotate clockwise, the centrifugal block generates centrifugal force under the influence of gravity in the process of rotating clockwise along with the input bracket and the output bracket, the centrifugal force generates acceleration action on the clockwise rotation of the input bracket and the output bracket, when the driving magnetic block rotates clockwise to be close to the driven magnetic block on the conversion bracket, the repulsive force is generated because the magnetism of the driving magnetic block and the driven magnetic block, the repulsive force pushes the conversion bracket to rotate clockwise, the conversion bracket rotates clockwise to drive the conversion gear to rotate clockwise, and then the output gear meshed with the conversion gear rotates, the output gear drives the output shaft meshed with the output gear to rotate anticlockwise to output power; the output fixing frame is fixed on the fixed support and can not rotate, when a conversion rod of the conversion support rotates to the brake block, the surface of the brake block is rubbed to brake forcibly, so that the conversion support is decelerated to stop rotating, if the brake block can not completely stop the conversion support from rotating, the conversion rod can collide with a barrier strip at the tail end of the brake block to brake, the input support and the output support continue to drive the driving magnetic block to rotate to a driven magnetic block close to the static state, the output support collides with the shifting block, the shifting block rotates to drive the pinion to rotate clockwise, further, the bull gear meshed with the pinion is driven to rotate anticlockwise, further, the movable seat compression spring meshed with the bull gear is driven to deform towards the direction of the base, the movable seat leaves the conversion rod braked by the movable seat, the conversion support is released, and at the moment, the driven magnetic block fixed on the conversion rod generates repulsive force due to, the conversion bracket is driven to rotate clockwise, the conversion bracket rotates to drive the conversion gear to rotate clockwise, the conversion gear rotates clockwise to drive the output gear meshed with the conversion gear to rotate anticlockwise, and the output gear drives the output shaft meshed with the conversion gear to rotate anticlockwise to output power; when the brake mechanism releases the conversion bracket, the spring can generate reset force due to compression to push the movable seat to reset, so that the large gear is driven to rotate clockwise, and the small gear is driven to rotate anticlockwise to reset; after the braking mechanism is reset, any one conversion rod in the conversion support rotates and reaches the braking mechanism, the conversion support is braked, the conversion support stops rotating until one output rod on the output support impacts a shifting block on the braking mechanism again, the braking mechanism is opened again to release the conversion support, the conversion support is pushed by a repulsive force generated between a group of driving magnetic blocks and a group of driven magnetic blocks which are close to each other to rapidly rotate to output power, and the operation is repeated in such a way until the motor stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440615.1A CN111478551A (en) | 2020-05-22 | 2020-05-22 | Magnetic transmission with brake mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440615.1A CN111478551A (en) | 2020-05-22 | 2020-05-22 | Magnetic transmission with brake mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111478551A true CN111478551A (en) | 2020-07-31 |
Family
ID=71763677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010440615.1A Pending CN111478551A (en) | 2020-05-22 | 2020-05-22 | Magnetic transmission with brake mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111478551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599219A (en) * | 2021-06-22 | 2021-11-05 | 惠州蒲公英健康科技有限公司 | Fascia gun |
-
2020
- 2020-05-22 CN CN202010440615.1A patent/CN111478551A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599219A (en) * | 2021-06-22 | 2021-11-05 | 惠州蒲公英健康科技有限公司 | Fascia gun |
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