CN107370337B - Vertical installation structure and method of permanent magnet coupler and online separation and resetting method - Google Patents
Vertical installation structure and method of permanent magnet coupler and online separation and resetting method Download PDFInfo
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- CN107370337B CN107370337B CN201710700606.XA CN201710700606A CN107370337B CN 107370337 B CN107370337 B CN 107370337B CN 201710700606 A CN201710700606 A CN 201710700606A CN 107370337 B CN107370337 B CN 107370337B
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- 238000009434 installation Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000926 separation method Methods 0.000 title abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 104
- 238000010168 coupling process Methods 0.000 claims abstract description 104
- 238000005859 coupling reaction Methods 0.000 claims abstract description 104
- 230000004323 axial length Effects 0.000 claims description 18
- 239000004020 conductor Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- 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
- H02K49/108—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with an axial air gap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a vertical mounting structure and method and online separation and reset method of permanent magnet coupling, vertical mounting structure includes coaxial permanent magnet coupling and support sleeve that sets up, support sleeve's one end is connected with vertical motor, the other end is connected with the load end, the permanent magnet coupling is located support sleeve, the permanent magnet coupling includes first axle sleeve, the second axle sleeve, driven rotor and initiative rotor, first axle sleeve cover is established on vertical motor's output shaft and is connected with initiative rotor, the second axle sleeve cover is established on the input shaft of load end and is connected with driven rotor, wherein, support sleeve includes split setting and can dismantle first sleeve and the second sleeve of connection, first sleeve is connected with vertical motor, the second sleeve is connected with the load end. The structure and the method solve the problem of vertical installation of the permanent magnet coupler, are easy to connect and separate, and can realize on-line separation maintenance and resetting of the fault motor in a multi-machine linkage system.
Description
Technical Field
The present disclosure relates to the field of mechanical transmission, and in particular, to a vertical installation structure and method of a permanent magnet coupling and an online separation and resetting method.
Background
In the prior art, the connection between the vertical motor and the load end (such as a speed reducer end) generally needs to be carried out through an integrally formed annular closed sleeve, one end of the sleeve is connected with the vertical motor through a flange, and the other end of the sleeve is also connected with the load end through the flange. Because of the unique advantages of permanent magnet coupling transmission, the application of the permanent magnet coupling transmission is more and more important to a mechanical transmission system, but the permanent magnet coupling is directly applied to a vertical motor driving system in the prior art, so that technical problems are necessarily existed:
firstly, the problem of spanner space when the coupling piece such as bolt is fastened, vertical motor often needs rotary support piece such as sleeve to support, because rotary support piece such as sleeve inner space is narrow and small (basically no spanner space), and the axle sleeve of permanent magnet coupling often adopts hot jacket assembly process when installing with the axle, and permanent magnet coupling inside magnet steel can not bear the high temperature, consequently, axle sleeve and initiative rotor or driven rotor also do the split structure, and then often adopt fastener such as bolt to carry out the hookup, often do not have spanner space when vertical installation, this results in the bolt fastening connection that correlates on the permanent magnet coupling just to become the problem.
Secondly, the problem of installation error is solved, rotary type supporting pieces such as sleeves and the like are often connected with the flange end face of the motor by bolts, the supporting pieces have no guide parts, permanent magnet steel is arranged on the driving rotor and the driven rotor of the synchronous permanent magnet coupler, and certain installation error (radial error, angular error and the like) is necessarily caused during installation, so that the two permanent magnet rotors are unevenly and even slightly carelessly adsorbed together in an air gap during installation, and are difficult to separate. One rotor of the asynchronous permanent magnet coupler is a permanent magnet rotor, and the other rotor is a metal conductor rotor, and although the problem of eccentric adsorption does not exist during installation, the problem of uneven air gap after installation also exists without a guide part, so that the requirement of transmitting the maximum torque cannot be met.
Thirdly, the problem of on-line separation and resetting of the vertical motor is solved, for a multi-motor combined driving system, the on-line separation maintenance and resetting work of the vertical motor in the working process cannot be realized in the prior art, and production is seriously influenced for some important equipment.
Fourth, torque is not adjustable, and the current permanent magnet coupling often integrates a driving rotor and a driven rotor, and the maximum transmission torque value is often a certain value, so that the requirement of the maximum transmission torque value can not be properly adjusted according to the requirement.
Therefore, for the vertical installation of the permanent magnet coupling, in order to solve the above problems, a novel structure and a method for the vertical installation of the permanent magnet coupling are needed.
Disclosure of Invention
The vertical installation structure solves the vertical installation problem of the permanent magnet coupler, is easy to connect and separate, and can realize the online separation maintenance and resetting work of a fault motor in a multi-machine linkage system.
An aspect of the present invention provides a vertical installation structure of a permanent magnet coupling, including a permanent magnet coupling and a support sleeve coaxially disposed, where the permanent magnet coupling is used to connect a vertical motor with a load end, one end of the support sleeve is connected with the vertical motor, the other end is connected with the load end, the permanent magnet coupling is located in the support sleeve, the permanent magnet coupling includes a first shaft sleeve, a second shaft sleeve, a driven rotor and a driving rotor, the first shaft sleeve is sleeved on an output shaft of the vertical motor and connected with the driving rotor, the second shaft sleeve is sleeved on an input shaft of the load end and connected with the driven rotor, the support sleeve includes a first sleeve and a second sleeve that are separately disposed and detachably connected, the first sleeve is connected with the vertical motor, and the second sleeve is connected with the load end.
According to the scheme 2, according to the vertical installation structure of the permanent magnet coupler in the scheme 1, the first sleeve is in flange connection with the vertical motor, the second sleeve is in flange connection with the load end, and the first sleeve is in flange connection with the second sleeve.
According to the scheme 3, the vertical installation structure of the permanent magnet coupler according to the scheme 2, a first upper flange plate and a first lower flange plate are arranged on the outer peripheral surface of the first sleeve, a second upper flange plate and a second lower flange plate are arranged on the outer peripheral surface of the second sleeve, the first upper flange plate is positioned by the end face and the spigot of the flange plate of the vertical motor and is connected with the end face and the spigot of the input end flange plate of the load end through bolts, and the first lower flange plate is positioned by the end face and the outer circle of the second upper flange plate and is connected with the end face and the outer circle through bolts.
According to the vertical installation structure of the permanent magnet coupling in the scheme 4 and the scheme 3, the first upper flange plate of the first sleeve is formed at the upper end of the first sleeve, the first lower flange plate of the first sleeve is formed at the lower end of the first sleeve, the second upper flange plate of the second sleeve is formed at the middle part of the second sleeve, the second lower flange plate of the second sleeve is formed at the lower end of the second sleeve, the second sleeve comprises a guide part above the second upper flange plate and a main body part below the second upper flange plate, and the first sleeve is sleeved on the guide part.
According to the vertical installation structure of the permanent magnet coupling of the scheme 5, according to the scheme 4, an inner key groove or an inner spline is formed on the inner peripheral surface of the first sleeve, and an outer key groove or an outer spline matched with the inner key groove or the inner spline is formed on the outer peripheral surface of the guiding portion of the second sleeve.
The vertical installation structure of the permanent magnet coupling according to claim 6 is characterized in that the axial length of the guide portion is L0, and the axial length of the permanent magnet of the driving rotor or the permanent magnet of the driven rotor is L1, and L0 > L1.
The vertical mounting structure of a permanent magnet coupling according to claim 7, according to any one of claims 3 to 6, further comprising an adjustment shim provided between the first lower flange and the second upper flange for adjusting an axial length a of the permanent magnet of the driving rotor and the permanent magnet of the driven rotor that are staggered with respect to each other.
The vertical mounting structure of a permanent magnet coupling according to claim 8, according to any one of claims 3 to 6, further comprising an adjustment shim provided between the first lower flange and the second upper flange for adjusting an axial length C of an air gap between a permanent magnet disk or a conductor disk of the driving rotor and a permanent magnet disk of the driven rotor.
The vertical mounting structure of a permanent magnet coupling according to any one of the schemes 9, 3 to 6, wherein the first lower flange and the second upper flange are correspondingly provided with a plurality of connecting holes through which bolts pass, one of the first lower flange and the second upper flange is further provided with a plurality of threaded holes uniformly distributed along the circumferential direction thereof for long screws to be screwed in, and the threaded holes are blocked by the other one of the first lower flange and the second upper flange.
Another aspect of the present invention provides a vertical installation method of a permanent magnet coupling for connecting a vertical motor and a load end, the vertical installation method including:
a driving rotor mounting step, namely sleeving a first shaft sleeve of the permanent magnet coupler on an output shaft of the vertical motor, and connecting a driving rotor of the permanent magnet coupler to the first shaft sleeve;
a driven rotor mounting step of sleeving a second shaft sleeve of the permanent magnet coupling on an input shaft of the load end and connecting a driven rotor of the permanent magnet coupling to the second shaft sleeve;
a first sleeve mounting step of connecting a first sleeve to the vertical motor so that the first sleeve is coaxial with the driving rotor;
a second sleeve mounting step of connecting a second sleeve to the load end so that the second sleeve is coaxial with the driven rotor;
and a sleeve connecting step, wherein the first sleeve and the second sleeve are coaxially connected together by an axial guiding part, and the non-contact magnetic coupling of the driving rotor and the driven rotor is realized to complete the connection of the vertical motor and the load end.
The vertical installation method of the permanent magnet coupling according to claim 11, according to claim 10, wherein the first sleeve 21 has a first upper flange 21a and a first lower flange 21b on an outer circumferential surface thereof, the first upper flange 21a of the first sleeve 21 is formed at an upper end thereof, the first lower flange 21b of the first sleeve 21 is formed at a lower end thereof, the second sleeve 22 has a second upper flange 22a and a second lower flange 22b on an outer circumferential surface thereof, the second upper flange 22a of the second sleeve 22 is formed at a middle portion thereof, the second lower flange 22b of the second sleeve 22 is formed at a lower end thereof, the second sleeve 22 includes a guide portion 22d located above the second upper flange 22a and a main body portion 22c located below the second upper flange 22a,
in the first sleeve mounting step, the first upper flange 21a is attached to the flange 32 of the vertical motor by bolts 23,
in the second sleeve mounting step, the second lower flange 22b is connected to the input flange 42 of the load side by bolts 23,
in the sleeve connection step, the vertical motor 30 is lifted, the first sleeve 21 is aligned with the guiding portion 22d of the second sleeve 22, then the vertical motor 30 is lowered in the axial direction, the first sleeve 21 is sleeved on the guiding portion 22d until the first lower flange 21b falls onto the second upper flange 22a, the magnetic coupling between the driving rotor 14 and the driven rotor 13 is achieved, and the first lower flange 21b and the second upper flange 22a are connected through bolts 23.
In a further aspect of the present invention, there is provided an on-line disconnection and restoration method of a permanent magnet coupling according to claim 12, wherein the permanent magnet coupling 10 is used for connecting a vertical motor 30 and a load end 40, the vertical motor 30 and the load end 40 are connected to each other by the permanent magnet coupling 10 and a support sleeve 20 coaxially disposed, the permanent magnet coupling 10 is disposed in the support sleeve 20, the support sleeve 20 includes a first sleeve 21 and a second sleeve 22 detachably disposed and detachably connected, a first upper flange 21a and a first lower flange 21b are disposed on an outer circumferential surface of the first sleeve 21, a second upper flange 22a and a second lower flange 22b are disposed on an outer circumferential surface of the second sleeve 22,
the first upper flange 21a is connected with the flange 32 of the vertical motor through bolts 23, the second lower flange 22b is connected with the input flange 42 of the load end through bolts 23, the first lower flange 21b is connected with the second upper flange 22a through bolts 23, a plurality of connecting holes 26 for the bolts 23 to pass through are correspondingly arranged on the first lower flange 21b and the second upper flange 22a, a plurality of threaded holes 27 for long screws 25 to be screwed in are uniformly distributed along the circumferential direction of one of the first lower flange 21b and the second upper flange 22a, the threaded holes 27 are blocked by the other of the first lower flange 21b and the second upper flange 22a,
the on-line separation and resetting method is characterized by comprising the following steps:
removing the bolts 23 connecting the first lower flange 21b and the second upper flange 22a, screwing the long screws 25 into the threaded holes 27, and abutting the first lower flange 21b or the second upper flange 22a by using the long screws 25, so that the first sleeve 21 and the second sleeve 22 are separated, and simultaneously, the permanent magnet of the driving rotor 14 and the permanent magnet of the driven rotor 13 are separated from each other in a magnetic coupling manner, so that the vertical motor 30 and the load end 40 are separated online.
The method for on-line separation and restoration of a permanent magnet coupling according to claim 13 and claim 12 is characterized in that the method for on-line separation and restoration is performed by the vertical installation method of a permanent magnet coupling according to claim 10 or claim 11.
Through the technical scheme, the technical effects of the present disclosure are as follows:
1. the split type double-sleeve structure is adopted to guide and position the permanent magnet coupler, the radial and angular centering installation errors of the permanent magnet coupler are small, the air gap is uniform, the maximum torque transmission requirement can be ensured, and the difficult problem of eccentric adsorption is avoided. Simple and convenient installation, high speed and high installation efficiency.
2. The driving rotor and the driven rotor of the permanent magnet coupler are respectively connected with the driving end and the load end, and then the two rotors are combined, namely split installation is adopted, bolts are respectively fastened, so that the problem that the bolts cannot be fastened during integral installation is solved.
3. For the multi-machine linkage system, when a certain vertical motor fails, the structure and the method can realize the online separation maintenance work of the failed motor, and after the failure is removed, the reset work of the motor can be realized online, so that the normal production can not be influenced for some important equipment which can not be stopped and maintained.
4. The axial installation position of the permanent magnet coupler is adjusted by controlling the thickness of the adjusting deflection piece, so that the effective coupling length of the permanent magnet coupler can be adjusted, the torque can be adjusted, and the requirement of actual working conditions is met.
5. The permanent magnet coupling transmission greatly reduces vibration and noise, and the service life of equipment is prolonged.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
fig. 1 is a partial sectional view of a vertical installation structure of a permanent magnet coupling according to a first embodiment of the present invention in a coupled state;
fig. 2 is a partial cross-sectional view of a vertical mounting structure of a permanent magnet coupling according to a first embodiment of the present invention during connection;
fig. 3 is a partial cross-sectional view of a vertical mounting structure of a permanent magnet coupling according to a first embodiment of the present invention during a separation process;
fig. 4 is a partial sectional view of a vertical installation structure of a permanent magnet coupling according to a second embodiment of the present invention in a coupled state;
fig. 5 is a partial cross-sectional view of a vertical installation structure of a permanent magnet coupling according to a third embodiment of the present invention in a coupled state;
fig. 6 is a top view of a second sleeve of the vertical mounting structure of the permanent magnet coupling of the first embodiment of the present invention;
fig. 7 is a cross-sectional view A-A of fig. 6.
Description of the reference numerals
10. First shaft sleeve of permanent magnet coupling 11
12. Driven rotor of second sleeve 13
14. Active rotor
20. First sleeve of support sleeve 21
21a first upper flange 21b first lower flange
21c inner key groove or inner spline 22 second sleeve
22a second upper flange 22b second lower flange
22c main body portion 22d guide portion
22e external key groove or external spline 23 bolt
24. Adjusting washer 25 long screw
26. Threaded hole of connecting hole 27
30. Output shaft of vertical motor 31
32. Flange plate of vertical motor
40. Load side 41 input shaft
42. Input end flange plate of load end
50. Disk type synchronous permanent magnet coupling
60. Disk type asynchronous permanent magnet coupling
Axial length of L0 guide portion
Axial length of permanent magnet of L1 driving rotor or permanent magnet of driven rotor
Axial length of permanent magnet of driving rotor and permanent magnet of driven rotor staggered relative to each other
B adjusting the thickness of the gasket
Axial length of air gap between permanent magnet disk of driving rotor or conductor disk and permanent magnet disk of driven rotor
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise specified, terms such as "upper and lower" are used to generally refer to above and below in the axial direction as shown in fig. 1. The multi-motor linkage system refers to a system in which a plurality of motors are connected in parallel to provide power for the same load. In this embodiment of the present invention, the load end 40 may be a speed reducer or the like.
As shown in fig. 1 to 3, the vertical installation structure of a permanent magnet coupling according to the embodiment of the present invention includes a permanent magnet coupling 10 and a support sleeve 20 that are coaxially disposed, the permanent magnet coupling 10 is used for connecting a vertical motor 30 with a load end 40, one end of the support sleeve 20 is connected with the vertical motor 30, the other end is connected with the load end 40, the permanent magnet coupling 10 is located in the support sleeve 20, the permanent magnet coupling 10 includes a first sleeve 11, a second sleeve 12, a driven rotor 13 and a driving rotor 14, the first sleeve 11 is sleeved on an output shaft 31 of the vertical motor 30 and is connected with the driving rotor 14, the second sleeve 12 is sleeved on an input shaft 41 of the load end 40 and is connected with the driven rotor 13, wherein the support sleeve 20 includes a first sleeve 21 and a second sleeve 22 that are detachably disposed, the first sleeve 21 is connected with the vertical motor 30, and the second sleeve 22 is connected with the load end 40.
In the present invention, as shown in fig. 2, the vertical installation structure of the permanent magnet coupling is installed by an installation method comprising: a driving rotor mounting step of sleeving a first shaft sleeve 11 of the permanent magnet coupling 10 on an output shaft 31 of the vertical motor 30 and connecting a driving rotor 14 of the permanent magnet coupling 10 to the first shaft sleeve 11; a driven rotor mounting step of sleeving the second sleeve 12 of the permanent magnet coupling 10 on the input shaft 41 of the load end 40 and connecting the driven rotor 13 of the permanent magnet coupling 10 to the second sleeve 12; a first sleeve mounting step of connecting a first sleeve 21 to the vertical motor 30 so that the first sleeve 21 is coaxial with the driving rotor 14; a second sleeve mounting step of connecting a second sleeve 22 to the load end 40 so that the second sleeve 22 is coaxial with the driven rotor 13; and a sleeve connecting step of coaxially connecting the first sleeve 21 and the second sleeve 22 together by an axial guiding part to realize non-contact magnetic coupling of the driving rotor 14 and the driven rotor 13, thereby completing connection of the vertical motor and the load end.
Because the support sleeve 20 adopts a split type structure, namely, the support sleeve is formed by connecting the first sleeve 21 and the second sleeve 22, when the support sleeve is installed, firstly, the first shaft sleeve 11, the driving rotor 14 and the first sleeve 21 are installed on the vertical motor 30, the second shaft sleeve 12, the driven rotor 13 and the second sleeve 22 are installed on the load end 40, and then the first sleeve 21 and the second sleeve 22 which are installed in a split mode are connected together to complete the installation, the problem that bolts are inconvenient to screw when the integral sleeve is installed is avoided, and the vertical installation structure solves the problem of vertical installation of the permanent magnet coupler, is easy to connect and separate, and can realize online separation maintenance and resetting of a fault motor in a multi-machine linkage system.
As shown in fig. 1, in order to facilitate connection between the vertical motor 30, the first sleeve 21, the second sleeve 22 and the load end, optionally, the first sleeve 21 is in flange connection with the vertical motor 30, the second sleeve 22 is in flange connection with the load end 40, and the first sleeve 21 is in flange connection with the second sleeve 22, so that disassembly and assembly between two sleeves are easy, and positioning is accurate.
As shown in fig. 1, in order to facilitate the connection between the first sleeve 21 and the second sleeve 22, optionally, the first sleeve 21 has a first upper flange 21a and a first lower flange 21b on an outer circumferential surface, and the second sleeve 22 has a second upper flange 22a and a second lower flange 22b on an outer circumferential surface. In the first sleeve mounting step, the first upper flange 21a is connected with the flange 32 of the vertical motor by the bolts 23 at the end face and the spigot positions, so that the connection and disconnection operations of the first sleeve 21 and the vertical motor 30 are easy, and the positioning of both is accurate. In the second sleeve mounting step, the second lower flange 22b is connected to the input end flange 42 of the load end by the bolts 23 at the end face and the spigot positions, so that the connection and disconnection operation of the second sleeve 22 and the load end 40 is easy and both are positioned accurately. The first lower flange 21b and the second upper flange 22a are connected by bolts 23 by means of end face and outer circle positioning, so that the first sleeve 21 and the second sleeve 22 are easy to align and position, and the first sleeve 21 and the second sleeve 22 can be easily connected together by the bolts 23, and the connection between the first sleeve 21 and the second sleeve 22 is firm.
As shown in fig. 1 to 3, in order to facilitate alignment of the first sleeve 21 and the second sleeve 22, optionally, a first upper flange 21a of the first sleeve 21 is formed at an upper end thereof, a first lower flange 21b of the first sleeve 21 is formed at a lower end thereof, a second upper flange 22a of the second sleeve 22 is formed at a middle portion thereof, a second lower flange 22b of the second sleeve 22 is formed at a lower end thereof, the second sleeve 22 includes a guide portion 22d above the second upper flange 22a and a body portion 22c below the second upper flange 22a, and the first sleeve 21 is sleeved on the guide portion 22 d.
In the sleeve connection step, the vertical motor 30 is lifted, the first sleeve 21 is aligned with the guiding portion 22d of the second sleeve 22, then the vertical motor 30 is lowered in the axial direction, the first sleeve 21 is sleeved on the guiding portion 22d until the first lower flange 21b falls onto the second upper flange 22a, so that non-contact magnetic coupling between the driving rotor 14 and the driven rotor 13 is achieved, and the first lower flange 21b and the second upper flange 22a are connected through bolts 23.
During the sleeve connection process, the guiding part 22d plays a role in guiding the first sleeve 21, so that the first sleeve 21 and the second sleeve 22 are prevented from being not coaxial, and the driving rotor 14 and the driven rotor 13 of the coupler are prevented from being adsorbed together due to eccentricity. In addition, the second upper flange 22a plays a limiting role on the first sleeve 21, so that the first sleeve 21 is installed in place.
As shown in fig. 2, in order to better guide the first sleeve 21, an inner circumferential surface of the first sleeve 21 is optionally formed with an inner key groove or an inner spline 21c, and an outer circumferential surface of the guide portion 22d of the second sleeve 22 is formed with an outer key groove or an outer spline 22e that mates with the inner key groove or the inner spline 21 c. When the coupling is installed, the first sleeve 21 and the second sleeve 22 form spline fit and are in clearance fit, so that the first sleeve 21 and the second sleeve 22 can be aligned more easily, the driving rotor 14 and the driven rotor 13 of the coupling are further prevented from being adsorbed together due to eccentricity, and coaxiality of the first sleeve 21 and the second sleeve 22 is ensured.
As shown in fig. 1, in order to further guide the first sleeve 21, optionally, the axial length of the guide portion 22d is L0, and the axial length of the permanent magnet of the driving rotor 14 or the permanent magnet of the driven rotor 13 is L1, L0 > L1. Therefore, when the vertical motor 30 is further moved axially downward, the driving rotor 14 and the driven rotor 13 are opposed to each other, and attractive force is generated between the magnets of the driving rotor 14 and the driven rotor 13, so that the driving rotor 14 and the driven rotor 13 are prevented from being eccentrically attracted together, and the air gap between the magnets of the driving rotor 14 and the driven rotor 13 is made uniform.
In addition, in the multi-motor linkage system, when one of the failed vertical motors is overhauled, the input shaft 41 of the load end 40 still continues to rotate, and the output shaft 31 of the vertical motor 30 is driven to rotate due to the connection effect of the permanent magnet coupling, so that the vertical motor 30 may rotate along with the rotation. In this embodiment, since the first sleeve 21 and the second sleeve 22 are in spline fit, and L0 > L1, that is, after the driving rotor 14 and the driven rotor 13 are completely staggered in the axial direction, the first sleeve 21 and the second sleeve 22 are still in a partially-fit state, so that the passive rotation of the vertical motor 30 is limited.
As shown in fig. 1, in order to adjust the torque transmitted by the permanent magnet coupling, the vertical mounting structure optionally further comprises an adjustment shim 24, which adjustment shim 24 is arranged between the first lower flange plate 21b and the second upper flange plate 22a for adjusting the axial length a of the permanent magnets of the driving rotor 14 and the permanent magnets of the driven rotor 13, which are staggered with respect to each other. The thickness of the adjustment shim 24 is B, b=a, i.e. the greater the thickness of the adjustment shim 24, the greater the axial length a of the permanent magnets of the driving rotor 14 and the permanent magnets of the driven rotor 13, which are staggered with respect to each other, the smaller the effective coupling length of the permanent magnets of the driving rotor 14 and the permanent magnets of the driven rotor 13, the smaller the torque transmitted by the permanent magnet coupling, and vice versa.
As shown in fig. 4, in a second embodiment of the present invention, the permanent magnet coupling 10 of the present invention may be a disc-type synchronous permanent magnet coupling 50, wherein the driving rotor 14 and the driven rotor 13 are both permanent magnet discs; in a third embodiment of the present invention, as shown in fig. 5, the permanent magnet coupling 10 of the present invention may be a disk-type asynchronous permanent magnet coupling 60, wherein the driving rotor 14 is a conductor disk (e.g., a copper disk) and the driven rotor 13 is a permanent magnet disk. The second and third embodiments are different from the first embodiment in the structure and form of the driving rotor 14 and the driven rotor 13, and the vertical mounting structure of the permanent magnet coupling of the present invention is also applicable to the disc synchronous permanent magnet coupling 50 and the disc asynchronous permanent magnet coupling 60. The synchronous permanent magnet coupling 50 and the disc type asynchronous permanent magnet coupling 60 respectively comprise a first shaft sleeve 11, a second shaft sleeve 12, a driven rotor 13 and a driving rotor 14, wherein the first shaft sleeve 11 is sleeved on an output shaft 31 of the vertical motor 30 and is connected with the driving rotor 14, and the second shaft sleeve 12 is sleeved on an input shaft 41 of the load end 40 and is connected with the driven rotor 13.
As shown in fig. 4 and 5, in order to adjust the torque transmitted by the disc synchronous permanent magnet coupling 50 or the disc asynchronous permanent magnet coupling 60, the vertical mounting structure optionally further comprises an adjustment washer 24, which adjustment washer 24 is arranged between the first lower flange 21b and the second upper flange 22a for adjusting the axial length C of the air gap between the permanent magnet disc or conductor disc of the driving rotor 14 and the permanent magnet disc of the driven rotor 13. The thickness of the shim 24 is adjusted to B, c=b+c 0 ，C 0 For an initial magnetic coupling air gap between the driving disk and the driven disk without the adjusting shim 24, i.e., the greater the thickness of the adjusting shim 24, the greater the axial length C of the air gap between the permanent magnet disk or conductor disk of the driving rotor 14 and the permanent magnet disk of the driven rotor 13, the less torque is transferred by the synchronous permanent magnet coupling 50 or the disk asynchronous permanent magnet coupling 60, and vice versa.
As shown in fig. 3 to 7, in order to facilitate separation of the first sleeve 21 from the second sleeve 22, optionally, the first lower flange 21b and the second upper flange 22a are correspondingly provided with a plurality of connection holes 26 through which bolts 23 pass, one of the first lower flange 21b and the second upper flange 22a is further provided with a plurality of threaded holes 27 into which long screws 25 are screwed uniformly distributed along the circumferential direction thereof, and the threaded holes 27 are blocked by the other of the first lower flange 21b and the second upper flange 22a.
As shown in fig. 3 to 7, when the vertical motor 30 needs to be overhauled, the invention further provides an online separation and resetting method of the permanent magnet coupling, wherein the online separation and resetting method comprises the following steps:
removing the bolts 23 connecting the first lower flange 21b and the second upper flange 22a, screwing the long screws 25 into the threaded holes 27, and abutting the first lower flange 21b or the second upper flange 22a by using the long screws 25, so that the first sleeve 21 and the second sleeve 22 are separated, and simultaneously, the permanent magnet of the driving rotor 14 and the permanent magnet of the driven rotor 13 are separated from each other in a magnetic coupling manner, so that the vertical motor 30 and the load end 40 are separated online. A plurality of connecting holes 26 are correspondingly arranged on the first lower flange plate 21b and the second upper flange plate 22a along the circumferential direction, so that bolts 23 can pass through to fasten the first lower flange plate 21b and the second upper flange plate 22a. The plurality of screw holes 27 are uniformly distributed on one of the first lower flange 21b and the second upper flange 22a in the circumferential direction, and are alternately arranged with the plurality of connection holes 26, the screw holes 27 being blocked by the other of the first lower flange 21b and the second upper flange 22a.
The long screw 25 rotates in the screw hole 27 to apply an upward supporting force to the first sleeve 21 to overcome the gravity and the magnetic force in the permanent magnet coupling 10, thereby separating the first sleeve 21 from the second sleeve 22 and performing on-line maintenance on the vertical motor 30. The on-line separation and resetting method resets through the vertical installation method of the permanent magnet coupler, and installs the vertical motor 30 in place according to the vertical installation method after maintenance is completed, so that the whole multi-motor linkage system does not need to be stopped, on-line separation maintenance and resetting are realized, and stop loss is avoided.
The system can drive the load singly (other motors follow-up rotation) or synchronously, for example, the first motor and the second motor can drive the load singly, when the first motor fails, the second motor operates, and can not be stopped and overhauled due to equipment reasons, at the moment, the first motor is in a follow-up rotation state, the on-line separation and overhauling of the first motor can be realized by utilizing the vertical mounting structure, and after the repair or replacement of the first motor is finished, the on-line reset of the equipment in a non-stop state can also be realized by utilizing the vertical mounting structure.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (8)
1. The utility model provides a vertical mounting structure of permanent magnet coupling, includes permanent magnet coupling (10) and support sleeve (20) of coaxial setting, permanent magnet coupling (10) are used for connecting vertical motor (30) and load end (40), the one end of support sleeve (20) with vertical motor (30) are connected, the other end with load end (40) are connected, permanent magnet coupling (10) are located in support sleeve (20), permanent magnet coupling (10) include first axle sleeve (11), second axle sleeve (12), driven rotor (13) and initiative rotor (14), first axle sleeve (11) cover is established on output shaft (31) of vertical motor (30) and with initiative rotor (14) are connected, second axle sleeve (12) cover is established on input shaft (41) of load end (40) and with driven rotor (13) are connected, characterized in that, support sleeve (20) include the components of a whole that can dismantle the connection's of components of a whole that can function independently setting first sleeve (21) and second sleeve (22), first axle sleeve (21) and second sleeve (21) have a connection with first flange (21) and a flange (40) are connected to first flange (21), the second sleeve (22) is provided with a second upper flange plate (22 a) and a second lower flange plate (22 b) on the outer peripheral surface, the first upper flange plate (21 a) is positioned close to the end surface and the spigot of the flange plate (32) of the vertical motor and is connected with the flange plate through bolts (23), the second lower flange plate (22 b) is positioned close to the end surface and the spigot of the input end flange plate (42) of the load end and is connected with the flange plate through bolts (23), and the first lower flange plate (21 b) is positioned close to the end surface and the outer circle of the second upper flange plate (22 a) and is connected with the flange plate through bolts (23).
2. The vertical mounting structure of a permanent magnet coupling according to claim 1, wherein a first upper flange (21 a) of the first sleeve (21) is formed at an upper end thereof, a first lower flange (21 b) of the first sleeve (21) is formed at a lower end thereof, a second upper flange (22 a) of the second sleeve (22) is formed at a middle portion thereof, a second lower flange (22 b) of the second sleeve (22) is formed at a lower end thereof, the second sleeve (22) includes a guide portion (22 d) located above the second upper flange (22 a) and a main body portion (22 c) located below the second upper flange (22 a), and the first sleeve (21) is sleeved on the guide portion (22 d).
3. The vertical mounting structure of a permanent magnet coupling according to claim 2, wherein an inner circumferential surface of the first sleeve (21) is formed with an inner key groove or an inner spline (21 c), and an outer circumferential surface of the guide portion (22 d) of the second sleeve (22) is formed with an outer key groove or an outer spline (22 e) that mates with the inner key groove or the inner spline (21 c).
4. A vertical mounting structure of a permanent magnet coupling according to claim 3, characterized in that the axial length of the guide portion (22 d) is L0, and the axial length of the permanent magnet of the driving rotor (14) or the permanent magnet of the driven rotor (13) is L1, L0 > L1.
5. The vertical mounting structure of a permanent magnet coupling according to any one of claims 1-4, further comprising an adjustment shim (24), which adjustment shim (24) is arranged between the first lower flange (21 b) and the second upper flange (22 a) for adjusting the axial length a of the permanent magnets of the driving rotor (14) and the driven rotor (13) staggered with respect to each other.
6. The vertical mounting structure of a permanent magnet coupling according to any one of claims 1-4, characterized in that it further comprises an adjustment shim (24), which adjustment shim (24) is arranged between the first lower flange (21 b) and the second upper flange (22 a) for adjusting the axial length C of the air gap between the permanent magnet disc or conductor disc of the driving rotor (14) and the permanent magnet disc of the driven rotor (13).
7. The vertical mounting structure of a permanent magnet coupling according to any one of claims 1 to 4, wherein the first lower flange plate (21 b) and the second upper flange plate (22 a) are provided with a plurality of connection holes (26) through which bolts (23) pass correspondingly, one of the first lower flange plate (21 b) and the second upper flange plate (22 a) is further provided with a plurality of screw holes (27) into which long screws (25) are screwed uniformly distributed along the circumferential direction thereof, and the screw holes (27) are blocked by the other one of the first lower flange plate (21 b) and the second upper flange plate (22 a).
8. A vertical installation method of a permanent magnet coupling, comprising the vertical installation structure of a permanent magnet coupling according to any one of claims 1 to 7, the permanent magnet coupling (10) being used for connecting a vertical motor (30) with a load end (40), characterized in that the vertical installation method comprises:
a driving rotor mounting step of sleeving a first shaft sleeve (11) of the permanent magnet coupling (10) on an output shaft (31) of the vertical motor (30), and connecting a driving rotor (14) of the permanent magnet coupling (10) to the first shaft sleeve (11);
a driven rotor mounting step of sleeving a second sleeve (12) of the permanent magnet coupling (10) on an input shaft (41) of the load end (40), and connecting a driven rotor (13) of the permanent magnet coupling (10) to the second sleeve (12);
a first sleeve mounting step of connecting a first sleeve (21) to the vertical motor (30) such that the first sleeve (21) is coaxial with the driving rotor (14);
a second sleeve mounting step of connecting a second sleeve (22) to the load end (40) so that the second sleeve (22) is coaxial with the driven rotor (13);
and a sleeve connecting step of coaxially connecting the first sleeve (21) and the second sleeve (22) together by an axial guiding part, and performing non-contact magnetic coupling of the driving rotor (14) and the driven rotor (13) to complete the connection of the vertical motor and the load end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700606.XA CN107370337B (en) | 2017-08-16 | 2017-08-16 | Vertical installation structure and method of permanent magnet coupler and online separation and resetting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700606.XA CN107370337B (en) | 2017-08-16 | 2017-08-16 | Vertical installation structure and method of permanent magnet coupler and online separation and resetting method |
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| CN107370337A CN107370337A (en) | 2017-11-21 |
| CN107370337B true CN107370337B (en) | 2024-01-26 |
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| CN115342134B (en) * | 2022-10-19 | 2023-02-03 | 西北工业大学 | Transmission protection device for motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931308A (en) * | 2009-06-22 | 2010-12-29 | 余亚莉 | Permanent magnet coupling device for cylindrical transmission shaft |
| CN104038020A (en) * | 2014-05-21 | 2014-09-10 | 镇江市江南矿山机电设备有限公司 | Permanent magnet coupling shaft coupling self-centering protecting device |
| CN104033685A (en) * | 2014-05-27 | 2014-09-10 | 刘志民 | Novel sleeve type expansion joint |
| CN204886645U (en) * | 2015-06-18 | 2015-12-16 | 江苏磁谷科技股份有限公司 | Synchronous cylinder permanent magnet coupling of big moment of torsion duplex of transferable |
| CN207251434U (en) * | 2017-08-16 | 2018-04-17 | 江苏磁谷科技股份有限公司 | A kind of vertical mounting structure of permanent magnet clutch |
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2017
- 2017-08-16 CN CN201710700606.XA patent/CN107370337B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931308A (en) * | 2009-06-22 | 2010-12-29 | 余亚莉 | Permanent magnet coupling device for cylindrical transmission shaft |
| CN104038020A (en) * | 2014-05-21 | 2014-09-10 | 镇江市江南矿山机电设备有限公司 | Permanent magnet coupling shaft coupling self-centering protecting device |
| CN104033685A (en) * | 2014-05-27 | 2014-09-10 | 刘志民 | Novel sleeve type expansion joint |
| CN204886645U (en) * | 2015-06-18 | 2015-12-16 | 江苏磁谷科技股份有限公司 | Synchronous cylinder permanent magnet coupling of big moment of torsion duplex of transferable |
| CN207251434U (en) * | 2017-08-16 | 2018-04-17 | 江苏磁谷科技股份有限公司 | A kind of vertical mounting structure of permanent magnet clutch |
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| CN107370337A (en) | 2017-11-21 |
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