CN207426952U - Variable voltage control type permanent magnet speed regulation device - Google Patents
Variable voltage control type permanent magnet speed regulation device Download PDFInfo
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- CN207426952U CN207426952U CN201721423482.7U CN201721423482U CN207426952U CN 207426952 U CN207426952 U CN 207426952U CN 201721423482 U CN201721423482 U CN 201721423482U CN 207426952 U CN207426952 U CN 207426952U
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- bearing block
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- 238000004804 winding Methods 0.000 claims description 54
- 238000005096 rolling process Methods 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000009827 uniform distribution Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 5
- 230000004323 axial length Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses a kind of variable voltage control type permanent magnet speed regulation devices, and including generator and asynchronous motor, the generator is connected by power supply output line with asynchronous motor.The generator includes generator unit stator assembly, generator amature assembly, generator pit and guide rail；The inside of the generator pit is equipped with stator core and on guide rail；The guide rail is parallel with the rotation axis of power input shaft, and the generator pit is slidably connected with guide rail.The utility model eliminates the dual-rotor structure of existing permanent magnetic speed-adjusting transmission device, remaining structure is same as the prior art, therefore can maximally utilise the mature technology of existing generator or asynchronous motor.The stator core of the generator of the utility model does not rotate about the axis thereof, and the guide rail that can be translated merely with one along stator core axis direction carries out variable voltage control, therefore its arrangements for speed regulation mechanical wear is small, and degree of regulation is also high.
Description
Technical field
The utility model is related to permanent magnet speed regulation devices, particularly a kind of variable voltage control type permanent magnet speed regulation device.
Background technology
Existing permanent magnet speed regulation device is to rotate the rotating excitation field to be formed using p-m rotor to lead with solid conductor or bulk
Generated Lorentz force realizes that the movement between engine and working machine is transferred when body mutually moves.Since conductor is inducted
Electric current be vortex, when slip increases, caused by be vortexed and also increase, due to this partial vortices can only in solid conductor or
It is consumed in bulk conductor in the form of heat, therefore generated heat is larger, the power transferred under the conditions of air-cooled is smaller.
Chinese patent CN201710262226.2 proposes a kind of " permanent magnet speed regulation device based on electric current adjusting type ", the dress
The speed adjusting mechanism put is：By adjusting the size of the external variable resistance box internal resistance resistance value in current adjusting device assembly,
Mechanical property is made to change；When external variable resistance box increases, the induced current in coil windings will reduce, produced by
Lorentz force also reduce therewith, therefore the output speed of power output shaft and torque also reduce therewith.The advantages of device is
Induced current caused by big slip by variable resistance box is shed, traditional permanent magnet speed regulation device heat is solved and is difficult to what is shed
Problem；The drawback is that：The device also using the inside and outside dual-rotor structure of traditional permanent magnet speed regulation device, when the power transferred compared with
When big, the radius of gyration of inner and outer Rotator will increased dramatically, interior at this time in addition to the dynamic balance property to inner and outer Rotator is more demanding
Coil windings in rotor assembly will also bear great centrifugal force, cause coil windings (particularly when it is to dissipate winding coil
When) easily damage；In addition, the current adjusting device assembly of the device further includes slip ring and brush, caused defect is cunning
Ring and brush are prone to wear out when working, and need to often be replaced.
Utility model content
To solve the above problem existing in the prior art, the utility model will design a kind of pressure regulation that can realize following purpose
Speed-adjusting-type permanent-magnet arrangements for speed regulation：
1st, the big slip heating problem of existing permanent magnet speed regulation device is solved.
2nd, the dual-rotor structure in existing permanent magnet speed regulation device is solved the problems, such as.
3rd, solve the problems, such as that the coil windings in Chinese patent CN201710262226.2 internal rotor assemblies are easily damaged.
4th, solve the problems, such as that Chinese patent CN201710262226.2 contains vulnerable part slip ring and brush.
To achieve the above object, the technical solution of the utility model is as follows：
Variable voltage control type permanent magnet speed regulation device, including generator and asynchronous motor, the generator and rotary power
Source connects, and the asynchronous motor is connected with load, and the generator is connected by power supply output line with asynchronous motor；
The generator includes generator unit stator assembly, generator amature assembly, generator pit and guide rail；
The generator unit stator assembly is made of stator core A and stator winding A；Stator winding A is mounted on stator iron
In the slot of heart A, the power supply output line of stator winding A is drawn by terminal box picks out end phase with the winding in motor stator assembly
Even；Stator core A is mounted in generator pit；
The inside of the generator pit is equipped with stator core A and on guide rail；The guide rail and power are defeated
Enter that the rotation axis of axis is parallel, the generator pit is slidably connected with guide rail；
It is defeated that the generator amature assembly includes permanent magnet, rotor core A, left end bearing block, right end bearing block, power
Enter axis and bottom plate；The rotor core A is made of permeability magnetic material, uniformly distributed on rotor core A and permanent magnet physical dimension and
The identical slot of shape, for installing permanent magnet；The left end bearing block is identical with the physical dimension and structure of right end bearing block,
The left end bearing block is described with installing left end rolling bearing and right end rolling bearing respectively in the type hole of right end bearing block
Left end bearing block and right end bearing block are separately mounted on bottom plate, and the left end bearing block, right end bearing block are and generator
Stator core A is coaxial；The both ends of the power input shaft are separately mounted to the interior of left end rolling bearing and right end rolling bearing
Kong Zhong；One end of the power input shaft is connected by left end shaft coupling with rotating power source output shaft；
The asynchronous motor includes motor stator assembly and motor rotor assembly；
The motor stator assembly is made of stator core B, stator winding B and motor bed-plate；The stator
In the slot of stator core B, stator core B is mounted in motor bed-plate winding B；
The motor rotor assembly is made of rotor core B, rotor windings B and power output shaft；The rotor
Iron core B is repeatedly pressed by silicon steel sheet, and there are one the centre bores concentric with outer circle, outer round surface on rotor core B to be uniform-distribution with
Rotor slot has the both ends that a conducting bar stretches out in rotor core B in each rotor slot, and will be all with left end ring and right end ring
Conducting bar connects composition rotor windings B；The geometry of conducting bar cross section is consistent with rotor slot；The conducting bar, left end ring
And right end ring is made of the aluminium alloy or copper alloy of low conductivity；The power output shaft is mounted in rotor core B
In heart hole；One end of the power output shaft is connected by right end shaft coupling with load.
Further, the stator core A is mounted on by key joint mode in generator pit or passes through interference side
Formula is compressed in generator pit.
Further, the power output shaft by key joint mode mounted on rotor core B centre bore in or mistake
The mode of being full of is compressed in the centre bore of rotor core B.
Second technical solution of the utility model is as follows：
Variable voltage control type permanent magnet speed regulation device, including generator and asynchronous motor, the generator and rotary power
Source connects, and the asynchronous motor is connected with load, and the power input shaft of the generator passes through bearing and power output
Axis connects with one heart；
The generator includes field frame assembly, generator amature assembly, engine base and guide rail；
The field frame assembly is made of stator core C and stator winding C；Stator winding C is mounted on the slot of stator core C
In；Stator core C is mounted in engine base；
The engine base is mounted on bottom plate；The guide rail is parallel with the rotation axis of power input shaft, and described leads
Rail is slidably connected with spline housing；
It is defeated that the generator amature assembly includes permanent magnet, rotor core A, left end bearing block, right end bearing block, power
Enter axis and bottom plate；The rotor core A is made of permeability magnetic material, uniformly distributed on rotor core A and permanent magnet physical dimension and
The identical slot of shape, for installing permanent magnet；The left end bearing block is identical with the physical dimension and structure of right end bearing block,
The left end bearing block is described with installing left end rolling bearing and right end rolling bearing respectively in the type hole of right end bearing block
Left end bearing block and right end bearing block are separately mounted on bottom plate, and the left end bearing block, right end bearing block are and generator
Stator core A is coaxial；The both ends of the power input shaft are separately mounted to the interior of left end rolling bearing and right end rolling bearing
Kong Zhong；One end of the power input shaft is connected by left end shaft coupling with rotating power source output shaft；
The asynchronous motor includes field frame assembly and motor rotor assembly；The asynchronous motor and generator
Share field frame assembly and engine base；
The motor rotor assembly is made of rotor core B, rotor windings B and power output shaft；The rotor
Iron core B is repeatedly pressed by silicon steel sheet, and there are one the centre bores concentric with outer circle, outer round surface on rotor core B to be uniform-distribution with
Rotor slot has the both ends that a conducting bar stretches out in rotor core B in each rotor slot, and will be all with left end ring and right end ring
Conducting bar connects composition rotor windings B；The geometry of conducting bar cross section is consistent with rotor slot；The conducting bar, left end ring
And right end ring is made of the aluminium alloy or copper alloy of low conductivity；The power output shaft is mounted in rotor core B
In heart hole；One end of the power output shaft is connected by right end shaft coupling with load；
The power input shaft is splined shaft, and the spline upper sleeve of power input shaft fills spline housing.
Further, the conducting bar, left end ring and right end ring are less than 2.3 × 10 by electrical conductivity7The aluminium of siemens/m
Alloy or copper alloy are made.
3rd technical solution of the utility model is as follows：
Rotating power source and generator in first technical solution are replaced using AC stepless pressure regulator；The exchange
One end of stepless voltage regulator is connected with power grid, and the other end is connected by power supply output line with the asynchronous motor.
The utility model compared with existing permanent magnetic speed-adjusting transmission device or technology, have following protrusion property and significantly it is excellent
Point：
1st, the utility model eliminates the dual-rotor structure of existing permanent magnetic speed-adjusting transmission device, except the hair on guide rail
Outside electric machine stand can be moved along the axis direction of stator core A, remaining mechanical structure is identical with existing generator；This reality
With new asynchronous motor, mechanical structure is also identical with existing asynchronous motor, therefore can maximally utilise existing
There is the mature technology of generator or asynchronous motor.
2nd, the cage item of the utility model and end ring employ the relatively low aluminium alloy or copper alloy of electrical conductivity, therefore work as slip
Generated induced current is smaller during increasing, and heat and electric current is square directly proportional, therefore the heat formed is also small, can be real
High-power and big slip speed governing requirement under the conditions of now air-cooled.
3rd, the generator of the utility model is connected by left end shaft coupling with rotating power source output shaft, and it is dynamic only to receive rotation
The output torque in power source, from the influence of rotating power source voltage, therefore even if rotating power source is high-voltage motor, generator production
Raw induced voltage amplitude can be also limited in by structure design in low pressure range, solved easy during the voltage for adjusting high-voltage motor
In damage the problem of.
4th, existing permanent magnet speed regulation device is generally dual-rotor structure, it is necessary to using spline pair by one of rotor
Axis direction movement is carried out while rotating, speed governing is carried out to change rotor axial magnetic flux area, since spline pair will at this time
Larger frictional force is born, therefore speed adjusting gear is prone to wear out.And the stator core of the generator of the utility model is not around it
Axis rotates, and the guide rail that can be translated merely with one along stator core axis direction carries out variable voltage control, therefore its arrangements for speed regulation
Mechanical wear is small, and degree of regulation is also high.
5th, the cage item of the utility model is identical with existing asynchronous motor, can bear larger centrifugal force, therefore can be higher
It is rotated under rotating speed, solves that the coil windings in Chinese patent CN201710262226.2 internal rotor assemblies are easily damaged to ask
Topic.
6th, the utility model does not have vulnerable part slip ring and the brush described in Chinese patent CN201710262226.2, therefore can
It is all high by property and execution efficiency.
Description of the drawings
Fig. 1 is the machinery and electrical structure schematic diagram of the utility model.
Fig. 2 is the cross-sectional view of the rotor core B of the utility model, rotor slot and conducting bar.
Fig. 3 is the alternative plan machinery and electrical structure schematic diagram of the utility model.
Fig. 4 is the third program machinery and electrical structure schematic diagram of the utility model.
In figure：1st, stator core A, 2, stator winding A, 3, power supply output line, 4, winding pick out end, 5, generator pit,
6th, guide rail, 7, permanent magnet, 8, rotor core A, 9, left end bearing block, 10, right end bearing block, 11, power input shaft, 12, right end
Rolling bearing, 13, bottom plate, 14, left end shaft coupling, 15, rotating power source output shaft, 16, stator core B, 17, stator winding B,
18th, rotor slot, 19, rotor core B, 20, power output shaft, 21, right end shaft coupling, 22, load, 23, left end rolling bearing,
24th, motor bed-plate, 25, conducting bar, 26, left end ring, 27, right end ring, 28, spline housing, 29, bearing, 30, engine base, 31, stator iron
Heart C, 32, stator winding C, 33, AC stepless pressure regulator.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in Figs. 1-2, variable voltage control type permanent magnet speed regulation device, including generator and asynchronous motor, the power generation
Machine is connected with rotating power source, and the asynchronous motor 22 be connected with load, the generator by power supply output line 3 and
Asynchronous motor connects；
The generator includes generator unit stator assembly, generator amature assembly, generator pit 5 and guide rail 6；
The generator unit stator assembly is made of stator core A1 and stator winding A2；Stator winding A2 is mounted on stator
In the slot of iron core A1, the power supply output line 3 of stator winding A2 is drawn by terminal box to be connect with the winding in motor stator assembly
Outlet 4 is connected；Stator core A1 is mounted in generator pit 5；
The inside of the generator pit 5 is equipped with stator core A1 and on guide rail 6；The guide rail 6 is with moving
The rotation axis of power input shaft 11 is parallel, and the generator pit 5 is slidably connected with guide rail 6；
The generator amature assembly include permanent magnet 7, rotor core A8, left end bearing block 9, right end bearing block 10,
Power input shaft 11 and bottom plate 13；The rotor core A8 is made of permeability magnetic material, uniformly distributed and permanent magnet 7 on rotor core A8
Physical dimension and the identical slot of shape, for installing permanent magnet 7；The left end bearing block 9 is several with right end bearing block 10
What size and structure are identical, and the left end bearing block 9 with installing left end rolling bearing respectively in the type hole of right end bearing block 10
23 and right end rolling bearing 12, the left end bearing block 9 is separately mounted to right end bearing block 10 on bottom plate 13, the left side
End bearing block 9, right end bearing block 10 are coaxial with generator stator core A1；Pacify respectively at the both ends of the power input shaft 11
In the endoporus of left end rolling bearing 23 and right end rolling bearing 12；One end of the power input shaft 11 passes through left end shaft coupling
Device 14 is connected with rotating power source output shaft 15；
The asynchronous motor includes motor stator assembly and motor rotor assembly；
The motor stator assembly is made of stator core B16, stator winding B17 and motor bed-plate 24；It is described
Stator winding B17 mounted on stator core B16 slot in, stator core B16 be mounted on motor bed-plate 24 in；
The motor rotor assembly is made of rotor core B19, rotor windings B and power output shaft 20；Described
Rotor core B19 is repeatedly pressed by silicon steel sheet, rotor core B19 on there are one the centre bore concentric with outer circle, outer round surface is equal
It is even to be dispersed with rotor slot 18, there is a conducting bar 25 to stretch out in the both ends of rotor core B19 in each rotor slot 18, and use left end
All conducting bars 25 are connected composition rotor windings B by ring 26 and right end ring 27；The geometry and rotor of 25 cross section of conducting bar
Slot 18 is consistent；Conducting bar 25, left end ring 26 and the right end ring 27 is made of the aluminium alloy or copper alloy of low conductivity；It is described
Power output shaft 20 mounted on rotor core B19 centre bore in；One end of the power output shaft 20 passes through right end shaft coupling
Device 21 is connected with load 22.
Further, the stator core A1 is mounted on by key joint mode in generator pit 5 or passes through interference
Mode is compressed in generator pit 5.
Further, the power output shaft 20 is mounted on by key joint mode in the centre bore of rotor core B19
Or interference mode is compressed in the centre bore of rotor core B19.
As shown in figure 3, second technical solution of the utility model is as follows：
Variable voltage control type permanent magnet speed regulation device, including generator and asynchronous motor, the generator and rotary power
Source connects, and the asynchronous motor is connected with load 22, and the power input shaft 11 of the generator by bearing 29 and moves
Power output shaft 20 connects with one heart；
The generator includes field frame assembly, generator amature assembly, engine base 30 and guide rail 6；
The field frame assembly is made of stator core C31 and stator winding C32；Stator winding C32 is mounted on stator iron
In the slot of heart C31；Stator core C31 is mounted in engine base 30；
The engine base 30 is installed on base 13；The guide rail 6 is parallel with the rotation axis of power input shaft 11, institute
The guide rail 6 stated is slidably connected with spline housing 28；
The generator amature assembly include permanent magnet 7, rotor core A8, left end bearing block 9, right end bearing block 10,
Power input shaft 11 and bottom plate 13；The rotor core A8 is made of permeability magnetic material, uniformly distributed and permanent magnet 7 on rotor core A8
Physical dimension and the identical slot of shape, for installing permanent magnet 7；The left end bearing block 9 is several with right end bearing block 10
What size and structure are identical, and the left end bearing block 9 with installing left end rolling bearing respectively in the type hole of right end bearing block 10
23 and right end rolling bearing 12, the left end bearing block 9 is separately mounted to right end bearing block 10 on bottom plate 13, the left side
End bearing block 9, right end bearing block 10 are coaxial with generator stator core A1；Pacify respectively at the both ends of the power input shaft 11
In the endoporus of left end rolling bearing 23 and right end rolling bearing 12；One end of the power input shaft 11 passes through left end shaft coupling
Device 14 is connected with rotating power source output shaft 15；
The asynchronous motor includes field frame assembly and motor rotor assembly；The asynchronous motor and generator
Share field frame assembly and engine base 30；
The motor rotor assembly is made of rotor core B19, rotor windings B and power output shaft 20；Described
Rotor core B19 is repeatedly pressed by silicon steel sheet, rotor core B19 on there are one the centre bore concentric with outer circle, outer round surface is equal
It is even to be dispersed with rotor slot 18, there is a conducting bar 25 to stretch out in the both ends of rotor core B19 in each rotor slot 18, and use left end
All conducting bars 25 are connected composition rotor windings B by ring 26 and right end ring 27；The geometry and rotor of 25 cross section of conducting bar
Slot 18 is consistent；Conducting bar 25, left end ring 26 and the right end ring 27 is made of the aluminium alloy or copper alloy of low conductivity；It is described
Power output shaft 20 mounted on rotor core B19 centre bore in；One end of the power output shaft 20 passes through right end shaft coupling
Device 21 is connected with load 22；
The power input shaft 11 is splined shaft, and the spline upper sleeve of power input shaft 11 fills spline housing 28.
Further, the conducting bar 25, left end ring 26 and right end ring 27 by electrical conductivity be less than 2.3 ×
107The aluminium alloy or copper alloy of siemens/m is made.
As shown in Fig. 1,4, the 3rd technical solution of the utility model is as follows：
Rotating power source and generator in first technical solution are replaced using AC stepless pressure regulator 33；The friendship
One end of stream stepless voltage regulator 33 is connected with power grid, and the other end is connected by power supply output line 3 with the asynchronous motor.
The operation principle of the utility model is as follows：
The generator power input shaft 11 of the utility model is connected with rotating power source output shaft 15, forms permanent magnet 7
Rotating excitation field, stator winding A2 cutting magnetic lines in generator unit stator assembly simultaneously generate induced potential；Generated electricity of inducting
Pressure is by power supply output line 3 and is picked out through winding and holds 4 to be added on motor stator winding B17 and be allowed to form induced current, the sense
Conducting bar 25 in raw electric current formed rotating excitation field cutting rotor iron core B19, and be closed and formed through left end ring 26 and right end ring 27
Induced current, and then generating Lorentz force makes rotor core B19 and power output shaft 20 be rotated along the direction of rotation of permanent magnet 7.
The speed adjusting mechanism of the utility model is：By guide rail 6 adjust axial length of the permanent magnet 7 in stator winding A2 into
Row speed governing.Since induced potential is only directly proportional to the product of air-gap flux, the rotating speed of p-m rotor and axial length, and this practicality is new
The gas length between permanent magnet 7 and stator winding A2 described in type is constant, rotary speed and rotating power source output shaft 15
Rotating speed it is identical, it is also constant, therefore generated induced potential value is only related in the axial length of stator winding A2 corresponding thereto；
When axial length increase, the increase of induced potential value；Conversely, then reduce.
Due to asynchronous motor output torque and stator winding terminal voltage it is square directly proportional, when voltage becomes
During change, output torque by square times variation, that is, change motor stator winding terminal voltage when, cluster machine can be obtained
The different curve of tool characteristic, and obtain different rotating speeds.When the mechanical property of asynchronous motor is harder, although torque capacity declines
Very much, but speed adjustable range is less than normal, therefore for expanding governing, and the utility model employs that depth is shallower but sectional area is larger
Rotor slot 18, and employ the relatively low aluminium alloy of electrical conductivity or copper alloy manufacture conducting bar 25, above-mentioned measure and can be allowed to described
Asynchronous motor forms softer mechanical property, to widen the speed adjustable range of power output shaft 20.
The utility model is not limited to the present embodiment, any equivalent concepts in the technical scope of the utility model disclosure
Or change, it is classified as the scope of protection of the utility model.
Claims (6)
1. variable voltage control type permanent magnet speed regulation device, it is characterised in that：Including generator and asynchronous motor, the generator with
Rotating power source connects, and the asynchronous motor is connected with load (22), the generator by power supply output line (3) and
Asynchronous motor connects；
The generator includes generator unit stator assembly, generator amature assembly, generator pit (5) and guide rail (6)；
The generator unit stator assembly is made of stator core A (1) and stator winding A (2)；Stator winding A (2) is mounted on fixed
In the slot of sub- iron core A (1), the power supply output line (3) of stator winding A (2) passes through in terminal box extraction and motor stator assembly
Winding pick out end (4) be connected；Stator core A (1) is mounted in generator pit (5)；
The inside of the generator pit (5) is equipped with stator core A (1) and on guide rail (6)；The guide rail (6)
Parallel with the rotation axis of power input shaft (11), the generator pit (5) is slidably connected with guide rail (6)；
The generator amature assembly includes permanent magnet (7), rotor core A (8), left end bearing block (9), right end bearing block
(10), power input shaft (11) and bottom plate (13)；The rotor core A (8) is made of permeability magnetic material, on rotor core A (8)
The uniformly distributed slot identical with the physical dimension and shape of permanent magnet (7), for installing permanent magnet (7)；The left end bearing block (9)
It is identical with the physical dimension and structure of right end bearing block (10), the left end bearing block (9) and the type of right end bearing block (10)
Left end rolling bearing (23) and right end rolling bearing (12), the left end bearing block (9) and right end bearing are installed respectively in hole
Seat (10) be separately mounted on bottom plate (13), the left end bearing block (9), right end bearing block (10) with generator unit stator iron
Heart A (1) is coaxial；The both ends of the power input shaft (11) are separately mounted to left end rolling bearing (23) and right end rolling bearing
(12) in endoporus；One end of the power input shaft (11) passes through left end shaft coupling (14) and rotating power source output shaft (15)
It is connected；
The asynchronous motor includes motor stator assembly and motor rotor assembly；
The motor stator assembly is made of stator core B (16), stator winding B (17) and motor bed-plate (24)；Institute
For the stator winding B (17) stated in the slot of stator core B (16), stator core B (16) is mounted on motor bed-plate (24)
In；
The motor rotor assembly is made of rotor core B (19), rotor windings B and power output shaft (20)；Described
Rotor core B (19) is repeatedly pressed by silicon steel sheet, and there are one the centre bore concentric with outer circle, outer circle tables on rotor core B (19)
Face is uniform-distribution with rotor slot (18), has a conducting bar (25) to stretch out in rotor core B's (19) in each rotor slot (18)
Both ends, and all conducting bars (25) are connected into composition rotor windings B with left end ring (26) and right end ring (27)；Conducting bar (25) is horizontal
The geometry in section is consistent with rotor slot (18)；Conducting bar (25), left end ring (26) and the right end ring (27) is by low electricity
The aluminium alloy or copper alloy of conductance are made；The power output shaft (20) is in the centre bore of rotor core B (19)；Institute
The one end for stating power output shaft (20) is connected by right end shaft coupling (21) with load (22).
2. variable voltage control type permanent magnet speed regulation device according to claim 1, it is characterised in that：The stator core A (1)
It is mounted in generator pit (5) by key joint mode or is compressed on by interference mode in generator pit (5).
3. variable voltage control type permanent magnet speed regulation device according to claim 1, it is characterised in that：The power output shaft
(20) it is mounted on by key joint mode in the centre bore of rotor core B (19) or interference mode is compressed on rotor core B (19)
Centre bore in.
4. variable voltage control type permanent magnet speed regulation device according to claim 1, it is characterised in that：The rotating power source and
Generator is replaced using AC stepless pressure regulator (33)；One end of the AC stepless pressure regulator (33) is connected with power grid, separately
One end is connected by power supply output line (3) with the asynchronous motor.
5. variable voltage control type permanent magnet speed regulation device, it is characterised in that：Including generator and asynchronous motor, the generator with
Rotating power source connects, and the asynchronous motor is connected with load (22), and the power input shaft (11) of the generator is logical
It crosses bearing (29) and power output shaft (20) is concentric is connected；
The generator includes field frame assembly, generator amature assembly, engine base (30) and guide rail (6)；
The field frame assembly is made of stator core C (31) and stator winding C (32)；Stator winding C (32) is mounted on stator
In the slot of iron core C (31)；Stator core C (31) is mounted in engine base (30)；
The engine base (30) is mounted on bottom plate (13)；The guide rail (6) and the rotation axis of power input shaft (11) is put down
Row, the guide rail (6) are slidably connected with spline housing (28)；
The generator amature assembly includes permanent magnet (7), rotor core A (8), left end bearing block (9), right end bearing block
(10), power input shaft (11) and bottom plate (13)；The rotor core A (8) is made of permeability magnetic material, on rotor core A (8)
The uniformly distributed slot identical with the physical dimension and shape of permanent magnet (7), for installing permanent magnet (7)；The left end bearing block (9)
It is identical with the physical dimension and structure of right end bearing block (10), the left end bearing block (9) and the type of right end bearing block (10)
Left end rolling bearing (23) and right end rolling bearing (12), the left end bearing block (9) and right end bearing are installed respectively in hole
Seat (10) be separately mounted on bottom plate (13), the left end bearing block (9), right end bearing block (10) with generator unit stator iron
Heart A (1) is coaxial；The both ends of the power input shaft (11) are separately mounted to left end rolling bearing (23) and right end rolling bearing
(12) in endoporus；One end of the power input shaft (11) passes through left end shaft coupling (14) and rotating power source output shaft (15)
It is connected；
The asynchronous motor includes field frame assembly and motor rotor assembly；The asynchronous motor is shared with generator
Field frame assembly and engine base (30)；
The motor rotor assembly is made of rotor core B (19), rotor windings B and power output shaft (20)；Described
Rotor core B (19) is repeatedly pressed by silicon steel sheet, and there are one the centre bore concentric with outer circle, outer circle tables on rotor core B (19)
Face is uniform-distribution with rotor slot (18), has a conducting bar (25) to stretch out in rotor core B's (19) in each rotor slot (18)
Both ends, and all conducting bars (25) are connected into composition rotor windings B with left end ring (26) and right end ring (27)；Conducting bar (25) is horizontal
The geometry in section is consistent with rotor slot (18)；Conducting bar (25), left end ring (26) and the right end ring (27) is by low electricity
The aluminium alloy or copper alloy of conductance are made；The power output shaft (20) is in the centre bore of rotor core B (19)；Institute
The one end for stating power output shaft (20) is connected by right end shaft coupling (21) with load (22)；
The power input shaft (11) is splined shaft, and the spline upper sleeve of power input shaft (11) fills spline housing (28).
6. according to claim 1-3,5 any one of them variable voltage control type permanent magnet speed regulation devices, it is characterised in that：Described leads
Item (25), left end ring (26) and right end ring (27) are less than the aluminium alloy or copper alloy of 2.3 × 107siemens/m by electrical conductivity
It is made.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107579646A (en) * | 2017-10-31 | 2018-01-12 | 大连交通大学 | Variable voltage control type permanent magnet speed regulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579646A (en) * | 2017-10-31 | 2018-01-12 | 大连交通大学 | Variable voltage control type permanent magnet speed regulation device |
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