CN107546954B - Single permanent magnet disk permanent magnet speed regulator - Google Patents
Single permanent magnet disk permanent magnet speed regulator Download PDFInfo
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- CN107546954B CN107546954B CN201710962899.9A CN201710962899A CN107546954B CN 107546954 B CN107546954 B CN 107546954B CN 201710962899 A CN201710962899 A CN 201710962899A CN 107546954 B CN107546954 B CN 107546954B
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Abstract
The invention relates to the technical field of speed regulation and energy saving transmission, in particular to a single permanent magnet disc permanent magnet speed regulator which comprises a speed regulating mechanism assembly, a conductor disc assembly and a permanent magnet disc assembly which are coaxially and sequentially arranged, wherein the speed regulating mechanism assembly comprises an input shaft connected with a motor shaft, the input shaft is sleeved with the conductor disc assembly comprising a first air gap regulating assembly, a middle disc and a second air gap regulating assembly, and when the speed regulating mechanism assembly pushes the first air gap regulating assembly to axially move, the second air gap regulating assembly simultaneously makes opposite or opposite axial movement along the input shaft under the linkage action of a gear-rack mechanism. Under the condition that only a single permanent magnet disc is needed to be arranged, the slip ratio between the conductor disc assembly and the permanent magnet disc assembly is adjusted by the first air gap adjusting assembly and the second air gap adjusting assembly, so that the speed regulation of the motor input end and the load output end is finished, the structure is simple, the weight is light, the weight of the load shaft end is greatly reduced, and the speed regulation and the rotation are stable.
Description
Technical Field
The invention relates to the technical field of speed regulation and energy saving transmission, in particular to a single permanent magnet disc permanent magnet speed regulator designed by utilizing a permanent magnet eddy current induction principle.
Background
The existing motor system basically has the problems of lower specific power and serious electric energy waste, the traditional mechanical coupler inevitably transmits vibration from one end to the other end through the coupler, obviously, the motor system does not have the performance of vibration isolation and energy conservation, and the energy-saving technology such as permanent magnet eddy current flexible transmission is explicitly proposed in the energy-saving and emission-reducing 'twelve five' planning so as to optimize the operation and control of the system, and the overall operation efficiency and reliability of the system are improved.
Under the background, the permanent magnet speed regulator is a novel ideal choice in the field of motor energy conservation. In 1998, magnaDrive corporation proposed and disclosed a speed-adjustable permanent magnet coupler, but the structure of the coupler is complex, the manufacturing, installation and debugging are difficult, the weight of the equipment is heavy, the stability of the system operation is affected, and in addition, the axial length of the equipment is too long, which causes the disadvantages of long axial distance of motor movement during installation, and the application of the permanent magnet coupler is greatly limited.
Disclosure of Invention
Aiming at the structure of the existing permanent magnet speed regulator, the invention provides the single permanent magnet disk permanent magnet speed regulator which has a simple structure and can regulate the speed, and the torque of a motor end is transmitted to a load end through non-contact electromagnetic induction of a magnetic field, so that the aim of regulating the speed is fulfilled.
In order to solve the technical problems, the invention adopts the following technical scheme:
a permanent-magnet speed regulator with single permanent-magnet disk is composed of speed regulating mechanism consisting of input axle connected to motor axle, conductor disk unit, and permanent-magnet disk unit,
the conductor disc assembly comprises a first air gap adjusting assembly, a middle disc and a second air gap adjusting assembly, wherein the first air gap adjusting assembly is arranged between the speed regulating mechanism assembly and the middle disc, the first air gap adjusting assembly and the second air gap adjusting assembly are connected with the middle disc through a gear rack mechanism,
the permanent magnet disc assembly comprises a permanent magnet disc, a connecting disc and an air gap plate, one side of the connecting disc is rigidly connected with a load end, the other side of the connecting disc is connected with the permanent magnet disc through the air gap plate to form an air gap adjusting cavity, a second air gap adjusting assembly is arranged in the air gap adjusting cavity, and when the speed regulating mechanism assembly pushes the first air gap adjusting assembly to axially move, the second air gap adjusting assembly simultaneously makes opposite or opposite axial movement along an input shaft under the linkage action of the gear rack mechanism so as to change the air gap between the first air gap adjusting assembly and the second air gap adjusting assembly and the permanent magnet disc.
Further, the middle disc is fixed on the input shaft through a middle disc connecting sleeve, input torque of the motor shaft is transmitted to the middle disc through the input shaft, and then the input torque is transmitted to the first air gap adjusting assembly and the second air gap adjusting assembly through magnetic coupling.
Further, the middle disc connecting sleeve comprises an upper connecting part and a lower connecting part which are symmetrically arranged along the axis, the upper connecting part and the lower connecting part are buckled, a special-shaped inner hole for fixing the input shaft is formed in the center, and the axial outer surfaces of the upper connecting part and the lower connecting part are respectively fixedly connected with the center disc.
Further, the center department of intermediate plate adapter sleeve be equipped with the dysmorphism hole of being connected with the plane flat groove cooperation of input shaft, the radial surface of intermediate plate adapter sleeve be equipped with the screw thread plunger hole of being connected with the input shaft pinhole cooperation the axial surface of intermediate plate adapter sleeve be equipped with the screw hole, intermediate plate pass through screw hole and intermediate plate adapter sleeve fixed connection.
Further, the speed regulating mechanism assembly further comprises a speed regulating inner sleeve, a speed regulating outer sleeve and a speed regulating outer sleeve handle, wherein the speed regulating inner sleeve is fixedly sleeved on the input shaft, a spiral groove is formed in the outer side of the speed regulating inner sleeve, a cam follower is fixed on the spiral groove, the speed regulating inner sleeve is connected with the speed regulating outer sleeve through the cam follower, the speed regulating outer sleeve is connected with the first air gap adjusting assembly, the speed regulating outer sleeve is provided with the speed regulating outer sleeve handle connected with the actuator, the speed regulating outer sleeve handle swings in a set angle range after receiving signals of the actuator, and the rotating motion of the actuator is converted into axial displacement of the debugging mechanism assembly under the action of the cam follower and the spiral groove.
Further, the first air gap adjusting assembly comprises an input end conductor composite steel disc and an input end gear rack cover plate, wherein the input end gear rack cover plate is connected with the second air gap adjusting assembly through a gear rack mechanism, and the input end conductor composite steel disc is fixed on the speed regulating mechanism assembly.
Further, the second air gap adjusting component comprises an output end conductor composite steel disc, an output end gear rack cover plate and a conductor disc moving disc, wherein the output end gear rack cover plate is connected with the first air gap adjusting component through a gear rack mechanism and fixes the output end conductor composite steel disc at one end of the conductor disc moving disc, and the other end of the conductor disc moving disc is movably connected with a shaft hole of an input shaft, so that the conductor disc moving disc can reciprocate in the shaft hole of the input shaft during speed regulation.
Further, the gear rack mechanism comprises a gear, a first rack and a second rack, the gear is arranged on the middle disc, the gear is meshed with the first rack and the second rack which are oppositely arranged, the first rack is fixed on the first air gap adjusting assembly, the second rack is fixed on the second air gap adjusting assembly, and under the action of the gear rack mechanism, when the first air gap adjusting assembly moves axially, the second air gap adjusting assembly moves in a mirror image mode by taking the middle disc as a center line according to the displacement of the first air gap adjusting assembly.
Further, a plurality of permanent magnets which are adjacently and uniformly distributed according to the N pole and the S pole are arranged on the permanent magnetic disk.
Further, the motor shaft is sleeved in the shaft hole of the input shaft and is connected with the input shaft through the flange expansion sleeve.
Compared with the prior art, the invention has the following advantages and positive effects due to the adoption of the technical scheme:
1. the device utilizes the first air gap adjusting component and the second air gap adjusting component which are respectively arranged at two sides of the permanent magnet disc component, and can adjust the air gaps between the first air gap adjusting component and the second air gap adjusting component and the permanent magnet disc in linkage according to the load under the action of the speed regulating mechanism component and the rack-and-pinion mechanism, thereby influencing the slip ratio between the conductor disc component and the permanent magnet disc component, further completing the speed regulation between the input end and the load output end of the motor and realizing the purposes of energy conservation and speed regulation;
2. the permanent magnet disc assembly in the device only needs to be provided with a single permanent magnet disc, so that the structure of the permanent magnet disc assembly is simplified, the weight of a load end is greatly reduced on the premise of meeting the requirement of transmitting rated torque, and meanwhile, the axial length of a permanent magnet governor is relatively shortened, so that the stress condition of the load end is improved, and the rotation process is more stable, thereby reducing mechanical friction and abrasion, avoiding interference of vibration and effectively reducing noise when the governor operates;
3. the device connects the input shaft of the speed regulating mechanism assembly with the shaft end of the motor, and meanwhile, the motor shaft can extend into the shaft hole of the input shaft, so that the axial displacement of the motor side or the load end during installation is effectively reduced, and compared with the existing speed regulator, the device is simple and convenient to install and debug.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a schematic view of the structure of the middle plate connecting sleeve of the present invention;
symbol description: 1. the speed adjusting sleeve comprises an input shaft 2, a speed adjusting inner sleeve 3, a speed adjusting inner sleeve handle 4, a speed adjusting outer sleeve handle 5, a speed adjusting outer sleeve 6, a speed adjusting outer sleeve bearing end cover 7, cooling fins 8, an input end conductor composite steel disc 9, a permanent magnet disc 10, an air gap plate 11, a connecting disc 12, a gear 13, an output end gear tooth bar cover plate 14, a conductor disc moving disc 15, a second rack 16, a bolt group 17, an output end conductor composite steel disc 18, a cylindrical pin 19, a permanent magnet 20, an intermediate disc 21, an intermediate disc connecting sleeve 22, an input end gear tooth bar cover plate 23, a four-point contact ball bearing 24, an angular contact ball bearing 25 and a speed adjusting inner sleeve bearing end cover.
Detailed Description
The technical scheme provided by the invention is further described in detail below with reference to the attached drawings and specific embodiments. Advantages and features of the invention will become more apparent from the following description and from the claims. It is noted that the drawings are in a very simplified form and use non-precise ratios for convenience and clarity in assisting in illustrating embodiments of the invention.
The invention simplifies the structure of the permanent magnet disc assembly, utilizes the first air gap adjusting assembly and the second air gap adjusting assembly which are respectively arranged at the two sides of the permanent magnet disc assembly to adjust the air gap, shortens the axial length of the permanent magnet speed regulator on the premise of meeting the requirement of transmitting rated torque, has simple structure and convenient installation, ensures that the torque between the motor end and the load end is transmitted through non-contact electromagnetic induction by a magnetic field, and the air gap between the first air gap adjusting assembly and the second air gap adjusting assembly and the permanent magnet disc can be adjusted in the design range by the speed regulating mechanism, thereby changing the rotating speed of the load and realizing the purposes of speed regulation and energy saving.
Example 1
The structure of the governor of the present invention will now be described in detail with reference to fig. 1 to 4. The single permanent magnet disc permanent magnet speed regulator comprises a speed regulating mechanism component I, a conductor disc component II and a permanent magnet disc component III which are coaxially and sequentially arranged. In fig. 1, the speed regulating mechanism component is denoted by I, the conductor disc component is denoted by II, III represents a permanent magnet disc component, the speed regulating mechanism component I is connected with the shaft end of the motor, specifically, the input shaft 1 is used to connect with the motor shaft, the conductor disc component II is arranged on the input shaft 1, that is, the conductor disc component II is connected with the motor shaft end through the speed regulating mechanism component I, the permanent magnet disc component III is connected with the load end, and the precise air gap size adjustment and control are completed under the cooperation of the speed regulating mechanism component I, the conductor disc component II and the permanent magnet disc component III, thereby achieving the effects of energy saving and speed regulation.
The conductor disc assembly II mainly comprises a first air gap adjusting assembly, a middle disc 20 and a second air gap adjusting assembly, wherein the first air gap adjusting assembly is arranged between the speed regulating mechanism assembly I and the middle disc 20, and the first air gap adjusting assembly is connected with the second air gap adjusting assembly through a gear rack mechanism.
The permanent magnet disc assembly II mainly comprises a permanent magnet disc 9, a connecting disc 11 and an air gap plate 10, one side of the connecting disc 11 is rigidly connected with a load end, the other side of the connecting disc 11 is connected with the permanent magnet disc 9 through the air gap plate 10 to form an air gap adjusting cavity, a second air gap adjusting assembly is arranged in the air gap adjusting cavity, and when the speed regulating mechanism assembly I pushes the first air gap adjusting assembly to axially move, the second air gap adjusting assembly simultaneously makes opposite or opposite axial movement along the input shaft 1 under the linkage action of the gear-rack mechanism so as to change the air gap between the first air gap adjusting assembly and the second air gap adjusting assembly and the permanent magnet disc 9.
The first air gap adjusting assembly comprises an input end conductor composite steel disc 8 and an input end gear rack cover plate 22, wherein the input end gear rack cover plate 22 is connected with the second air gap adjusting assembly through a gear rack mechanism, and the input end conductor composite steel disc 8 is fixed on a speed regulating mechanism assembly I. Further, considering the heat dissipation situation, the outer surface of the input end conductor composite steel disc 8 of the present embodiment is provided with the heat dissipation fins 7, the number of the heat dissipation fins 7 is not specifically limited, in the present embodiment, the heat dissipation fins 7 are preferably made of an aluminum alloy material with good heat conduction performance, and the specific shape is preferably fin-shaped. Of course, a fin structure of another material or another shape that can achieve good heat dissipation may be used, which is not limited herein.
The second air gap adjusting assembly comprises an output end conductor composite steel disc 17, an output end gear rack cover plate 13 and a conductor disc moving disc 14, wherein the output end gear rack cover plate 13 is connected with the first air gap adjusting assembly through a gear rack mechanism, the output end conductor composite steel disc 17 is fixed at one end of the conductor disc moving disc 14, and the other end of the conductor disc moving disc 14 is movably connected with a shaft hole of the input shaft 1, so that the conductor disc moving disc 14 can reciprocate in the shaft hole of the input shaft 1 during speed regulation. Further, similar to the input-end conductor composite steel disc 8, the outer surface of the output-end conductor composite steel disc in this embodiment may also be provided with cooling fins, the number of which is not particularly limited, and in this embodiment, the cooling fins are preferably made of an aluminum alloy material with good heat-conducting properties, and the specific shape thereof is preferably fin-shaped. Of course, a fin structure of another material or another shape that can achieve good heat dissipation may be used, which is not limited herein.
The middle disc 20 in the conductor disc assembly II is fixed on the input shaft 1 through the middle disc connecting sleeve 21, so that the input torque of the motor shaft is transmitted to the middle disc 20 through the input shaft 1, then the input torque is transmitted to the first air gap adjusting assembly and the second air gap adjusting assembly through magnetic coupling, finally the input torque is transmitted to the permanent magnet disc assembly III, and finally the torque is transmitted to a load through the permanent magnet disc assembly III.
The middle disc connecting sleeve 21 is in a half-split shape, as shown in fig. 4, fig. 4 is a structure of half middle disc connecting sleeve 21, specifically, the middle disc connecting sleeve 21 comprises an upper connecting part and a lower connecting part which are symmetrically arranged along an axis, the upper connecting part and the lower connecting part are buckled, a special-shaped inner hole is formed in the center, the special-shaped inner hole is matched and connected with a flat groove of the input shaft 1 and is used for connecting and fixing the input shaft 1, in addition, for further fastening the input shaft 1, a threaded plunger hole matched and connected with a pin hole of the input shaft 1 is further formed on the radial surface of the middle disc connecting sleeve 21, the axial outer surfaces of the upper connecting part and the lower connecting part are fixedly connected with the center disc 20 respectively, and the connecting mode is that a threaded hole is formed on the axial surface of the middle disc connecting sleeve 21, and the middle disc 20 is fixedly connected with the middle disc connecting sleeve 21 through the threaded hole. Thereby, the intermediate disk connecting sleeve 21 serves as a connecting mechanism between the input shaft 1 and the intermediate disk 20, and the fixed connection of the two is completed.
The gear rack mechanism comprises a gear 12, a first rack and a second rack 15, wherein the first rack is inconvenient to show in the figure, the gear is arranged on a middle disc 20, the gear 12 is meshed with the first rack and the second rack 15 which are oppositely arranged, the first rack is fixed on a first air gap adjusting component, the second rack 15 is fixed on a second air gap adjusting component, and under the cooperation of the gear 12, the first rack and the second rack 15, when the first air gap adjusting component moves axially, the second air gap adjusting component moves in a mirror image mode by taking the middle disc as a central line according to the displacement of the first air gap adjusting component.
The permanent magnetic disk 9 is connected with the connecting disk 11 through an air gap plate 10 and a cylindrical pin 18 which are arranged on the peripheral edge, and the other side of the connecting disk 11 is connected with a load shaft through a flange expansion sleeve and a bolt group 16. The surface of the connecting disc 11 is provided with two groups of through holes which are uniformly distributed and used for weight reduction ventilation. The permanent magnet disk 9 is provided with a plurality of permanent magnets 19 which are adjacently and uniformly distributed according to N poles and S poles and have high coercivity, the permanent magnets 19 are uniformly distributed along the circumferential direction of the permanent magnet disk 9, the permanent magnets are fixed on the permanent magnet disk 9 through permanent magnet mounting holes arranged on the permanent magnet disk 9, and the permanent magnets 19 can be sector-shaped, rectangular, oval or circular, and in the figure, rectangular permanent magnets are taken as an example. Of course, the shape of the permanent magnet 19 may be, but is not limited to, one or a combination of several of a sector shape or a rectangle shape or an oval shape or a circle shape.
When the relative slip is generated between the input end conductor composite steel disc 8 and the permanent magnet disc 9, the input end conductor composite steel disc 8 cuts the magnetic force lines of the permanent magnet 9, and induced vortex is generated on the surface of the input end conductor composite steel disc 8, so that ampere force and an anti-induction magnetic field are generated, relative movement between the ampere force and the anti-induction magnetic field is prevented, the permanent magnet disc assembly III is driven to rotate, torque is transmitted to the end of a load shaft by the permanent magnet disc assembly III through the flange expansion sleeve, and accordingly the load is driven to work, and torque transmission is achieved. The greater the magnetic field strength at the surface of the input end conductor composite steel disk 8, the faster the relative sliding speed, the greater the torque transmitted.
The input shaft 1 of the speed regulating mechanism assembly I is connected with a motor shaft through a flange expansion sleeve and a bolt group 16, wherein the motor shaft can be sleeved and installed in a shaft hole of the input shaft 1, so that the aim of reducing the axial displacement of the motor during equipment installation is fulfilled.
Besides the input shaft 1, the speed regulating mechanism assembly I also comprises a speed regulating inner sleeve 2, a speed regulating inner sleeve handle 3, a speed regulating inner sleeve bearing end cover 25, a speed regulating outer sleeve handle 4 and a speed regulating outer sleeve bearing end cover 6, wherein the speed regulating inner sleeve 2 is fixed and sleeved on the input shaft 1, a spiral groove with a certain lead is arranged on the outer side of the speed regulating inner sleeve 2, a cam follower is fixed on the spiral groove, the speed regulating inner sleeve 2 is connected with the speed regulating outer sleeve 5 through the cam follower, the speed regulating outer sleeve 5 is connected with an input end conductor composite steel disc 8 in the first air gap regulating assembly, the speed regulating outer sleeve 5 is provided with the speed regulating outer sleeve handle 4, and the speed regulating outer sleeve 5 is driven by an actuator through the speed regulating outer sleeve handle 4, so that flexible rotation can be realized within a 90-degree swing angle range; the speed regulation inner sleeve handle 3 is connected with the base through a connecting rod mechanism, the speed regulation outer sleeve handle 4 is connected with the actuator through the connecting rod mechanism, when the actuator is required to act for speed regulation, the speed regulation outer sleeve handle 4 swings in a set angle range after receiving a pulse signal of the actuator, and under the action of the cam follower and the spiral groove, the rotary motion of the actuator is converted into axial displacement of the debugging mechanism component I, so that the input end conductor composite steel disc 8 and the output end conductor composite steel disc 17 are pushed to realize axial displacement, an air gap between the input end conductor composite steel disc 8 and the output end conductor composite steel disc 17 and the permanent magnet disc 9 is changed, the slip ratio between the conductor disc component II (the first air gap adjusting component and the second air gap adjusting component) and the permanent magnet disc component III is directly influenced by the adjustment of the air gap, and then the speed regulation between the input end of the motor and the load output end is completed according to the load adjustment, and the purpose of energy saving speed regulation is realized.
When the air gap between the first air gap adjusting component and the second air gap adjusting component and the permanent magnet is minimum, a very large magnetic field suction force is generated, so that the suction force between the first air gap adjusting component and the second air gap adjusting component can be overcome in the speed adjusting process, and as the speed adjusting mechanism component I needs to drive the conductor disc component II to do axial reciprocating motion, forces in two directions along the axial direction are generated between the speed adjusting inner sleeve 2 and the input shaft 1, and between the speed adjusting outer sleeve 5 and the input end conductor composite steel disc 8. In order to overcome the bidirectional axial force between the components, in this embodiment, a pair of angular contact ball bearings 24 are arranged back-to-back at the connection position of the speed adjusting inner sleeve 2 and the input shaft 1, and in addition, four-point contact ball bearings 23 are arranged at the fixed connection position of the speed adjusting outer sleeve 5 and the input shaft conductor composite steel disc 8. The design and arrangement of the angular contact ball bearing 24 and the four-point contact ball bearing 23 realize overcoming the axial suction force between the permanent magnet disk 9 and the conductor composite steel disk and achieving the purpose of motion isolation.
When the load is constant and speed regulation is not needed, a constant air gap is kept between the first air gap adjusting component and the second air gap adjusting component and the permanent magnet disc 9; when the load changes and the speed is required to be regulated, the input end conductor composite steel disc 8 is pushed by the speed regulating mechanism component I, and the output end conductor steel disc 17 is driven by the gear rack mechanism to axially move at the same time, so that the air gap between the conductor disc component II and the permanent magnet disc component III can be regulated according to the load, and the aim of changing the slip between the conductor disc component II and the permanent magnet disc component III to realize speed regulation is fulfilled.
The invention simplifies the speed regulator structure by arranging a single permanent magnetic disk, realizes the contactless transmission of torque, has relatively simple structure, convenient manufacture and processing and light weight, thereby greatly reducing the weight of a load shaft end, improving the stress condition of the load shaft, being more stable in the rotating process, reducing mechanical friction and abrasion, prolonging the service life of the speed regulator, avoiding the interference of vibration, reducing the loss of a transmission part, isolating vibration and obviously reducing noise.
It will be appreciated by those skilled in the art that the invention can be embodied in many other specific forms without departing from the spirit or scope of the invention, the above disclosure being only of a preferred embodiment of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the following claims, along with the full scope and equivalents thereof, which will occur to those skilled in the art, upon which this invention pertains, as defined by the following claims.
Claims (6)
1. The single permanent magnet disc permanent magnet speed regulator comprises a speed regulating mechanism component, a conductor disc component and a permanent magnet disc component which are coaxially and sequentially arranged, and is characterized in that the speed regulating mechanism component comprises an input shaft connected with a motor shaft, the conductor disc component is sleeved on the input shaft,
the conductor disc assembly comprises a first air gap adjusting assembly, a middle disc and a second air gap adjusting assembly, wherein the first air gap adjusting assembly is arranged between the speed regulating mechanism assembly and the middle disc, the first air gap adjusting assembly and the second air gap adjusting assembly are connected with the middle disc through a gear rack mechanism,
the permanent magnet disc assembly comprises a permanent magnet disc, a connecting disc and an air gap plate, one side of the connecting disc is rigidly connected with a load end, the other side of the connecting disc is connected with the permanent magnet disc through the air gap plate to form an air gap adjusting cavity, a second air gap adjusting assembly is arranged in the air gap adjusting cavity, and when the speed regulating mechanism assembly pushes the first air gap adjusting assembly to axially move, the second air gap adjusting assembly simultaneously makes opposite or opposite axial movement along an input shaft under the linkage action of the gear rack mechanism so as to change the air gap between the first air gap adjusting assembly and the second air gap adjusting assembly and the permanent magnet disc;
the speed regulating mechanism assembly further comprises a speed regulating inner sleeve, a speed regulating outer sleeve and a speed regulating outer sleeve handle, wherein the speed regulating inner sleeve is fixedly sleeved on the input shaft, a spiral groove is formed in the outer side of the speed regulating inner sleeve, a cam follower is fixed on the spiral groove, the speed regulating inner sleeve is connected with the speed regulating outer sleeve through the cam follower, the speed regulating outer sleeve is connected with the first air gap adjusting assembly, the speed regulating outer sleeve is provided with the speed regulating outer sleeve handle connected with the actuator, the speed regulating outer sleeve handle swings in a set angle range after receiving signals of the actuator, and the rotating motion of the actuator is converted into axial displacement of the debugging mechanism assembly under the action of the cam follower and the spiral groove;
the first air gap adjusting assembly comprises an input end conductor composite steel disc and an input end gear rack cover plate, wherein the input end gear rack cover plate is connected with the second air gap adjusting assembly through a gear rack mechanism, and the input end conductor composite steel disc is fixed on the speed regulating mechanism assembly;
the second air gap adjusting assembly comprises an output end conductor composite steel disc, an output end gear rack cover plate and a conductor disc moving disc, wherein the output end gear rack cover plate is connected with the first air gap adjusting assembly through a gear rack mechanism and fixes the output end conductor composite steel disc at one end of the conductor disc moving disc, and the other end of the conductor disc moving disc is movably connected with a shaft hole of an input shaft so that the conductor disc moving disc can reciprocate in the shaft hole of the input shaft during speed regulation;
the gear rack mechanism comprises a gear, a first rack and a second rack, the gear is arranged on the middle disc, the gear is meshed with the first rack and the second rack which are oppositely arranged, the first rack is fixed on the first air gap adjusting assembly, the second rack is fixed on the second air gap adjusting assembly, and under the action of the gear rack mechanism, when the first air gap adjusting assembly moves axially, the second air gap adjusting assembly moves in a mirror image mode by taking the middle disc as a center line according to the displacement of the first air gap adjusting assembly.
2. The single permanent magnet disc permanent magnet speed regulator according to claim 1, wherein the intermediate disc is fixed on the input shaft through an intermediate disc connecting sleeve, the input torque of the motor shaft is transmitted to the intermediate disc through the input shaft, and the input torque is transmitted to the first air gap adjusting assembly and the second air gap adjusting assembly through magnetic coupling.
3. The single permanent magnet disc permanent magnet speed regulator according to claim 2, wherein the middle disc connecting sleeve comprises an upper connecting part and a lower connecting part which are symmetrically arranged along the axis, the upper connecting part and the lower connecting part are buckled, a special-shaped inner hole for fixing the input shaft is formed at the center, and the axial outer surfaces of the upper connecting part and the lower connecting part are fixedly connected with the central disc respectively.
4. A single permanent magnet disc permanent magnet speed regulator according to claim 2 or 3, wherein the center of the middle disc connecting sleeve is provided with a special-shaped inner hole which is in fit connection with a flat groove of the input shaft, the radial surface of the middle disc connecting sleeve is provided with a threaded plunger hole which is in fit connection with a pin hole of the input shaft, the axial surface of the middle disc connecting sleeve is provided with a threaded hole, and the middle disc is fixedly connected with the middle disc connecting sleeve through the threaded hole.
5. The permanent magnet speed regulator with the single permanent magnet disc according to claim 1, wherein a plurality of permanent magnets which are adjacently and uniformly distributed according to N poles and S poles are arranged on the permanent magnet disc.
6. The permanent magnet speed regulator with single permanent magnet disc according to claim 1, wherein the motor shaft is sleeved in the shaft hole of the input shaft and is connected with the input shaft through a flange expansion sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710962899.9A CN107546954B (en) | 2017-10-17 | 2017-10-17 | Single permanent magnet disk permanent magnet speed regulator |
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| CN201710962899.9A CN107546954B (en) | 2017-10-17 | 2017-10-17 | Single permanent magnet disk permanent magnet speed regulator |
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| CN107546954B true CN107546954B (en) | 2024-02-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110176849B (en) * | 2019-06-14 | 2024-01-26 | 安徽沃弗永磁科技有限公司 | Single-face transmission air-cooled permanent magnet speed regulator |
| CN111130306B (en) * | 2020-01-13 | 2024-05-17 | 中煤科工集团沈阳研究院有限公司 | Double-connecting-rod speed regulating mechanism for magnetic coupler and speed regulating method |
| CN111969832A (en) * | 2020-09-07 | 2020-11-20 | 芜湖锦程永磁技术有限公司 | Torque-limiting permanent magnet coupling with adjustable start delay |
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