CN209385380U - A kind of bottom level adjustment device of magnetic suspension air blower - Google Patents
A kind of bottom level adjustment device of magnetic suspension air blower Download PDFInfo
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- CN209385380U CN209385380U CN201920049027.8U CN201920049027U CN209385380U CN 209385380 U CN209385380 U CN 209385380U CN 201920049027 U CN201920049027 U CN 201920049027U CN 209385380 U CN209385380 U CN 209385380U
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- magnetic bearing
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- air blower
- impeller
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Abstract
The utility model discloses a kind of bottom levels of magnetic suspension air blower to adjust device, including shell, support frame, fixing seat, the lower part of the shell is equipped with support frame, the lower part of support frame as described above is equipped with fixing seat by rubber block, one end of the shaft is equipped with impeller, the shaft is equipped with turntable far from the side of impeller, the shell, which closes on, is equipped with radial direction magnetic bearing on the inside of impeller, the inside of the radial direction magnetic bearing and the outside of shaft are opposite, the shell, which closes on, is equipped with axial magnetic bearing on the inside of turntable, the inside of the axial magnetic bearing and the side of turntable are opposite, the side that the shell closes on axial magnetic bearing is provided with sliding slot, the inside loose joint of the sliding slot has sliding block, the output end of the electric pushrod is connected with the lower part of sliding block.The utility model effectively realizes the adjusting of height in real time in initial start and during stopping two, meanwhile, effectively guarantee its stabilization in the axial direction, guarantees its stable operation.
Description
Technical field
The utility model relates to air blower height adjustment technology fields, and in particular to a kind of bottom of magnetic suspension air blower is high
Degree adjustment device.
Background technique
The one kind of magnetic suspension air blower as air blower, is widely used in the pneumatic transportings such as the raw material of industry, dust, raw-food material
It send；Sewage treatment plant is aerated to sewage bottom of pond portion；Culture fishery is increased by blasting air to aquaculture bottom of pond portion
Add the multiple fields such as oxygen content in pond.
But the magnetic suspension bearing of existing magnetic suspension air blower is during starting and stopping the two, bottom
Structure can not adjust height in real time, cannot effectively be supported to rotor, and during startup, initial electric current is excessive,
It is easy to cause magnetic bearing rotor in stopped process directly to fall, be easy to cause shaft impaired, influence making for magnetic suspension air blower
With；On the other hand, existing magnetic suspension air blower only uses magnetic suspension bearing in radial direction, it is more difficult to guarantee it in axial side
Upward stabilization is unfavorable for the stable operation of magnetic suspension air blower.
Utility model content
The purpose of this utility model is to provide a kind of bottom levels of magnetic suspension air blower to adjust device, effectively first
Begin to start and stop two adjustings for realizing height in real time in the process；Meanwhile effectively guaranteeing its in the axial direction steady
It is fixed, guarantee its stable operation, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of bottom level adjustment device of magnetic suspension air blower, including shell, shaft and electric pushrod, the shell
Lower part is equipped with support frame, and the lower part of support frame as described above is equipped with fixing seat by rubber block, and the inside of the shell is equipped with
The middle part of permanent magnet synchronous motor is run through at permanent magnet synchronous motor, the middle part of the shaft, and one end of the shaft is equipped with impeller, institute
The outside for stating impeller is covered with spiral case, and the shaft is equipped with turntable far from the side of impeller, and the shell closes on the inside of impeller
Radial direction magnetic bearing is installed, the inside of the radial direction magnetic bearing and the outside of shaft are opposite.
Preferably, the shell, which closes on, is equipped with axial magnetic bearing on the inside of turntable, the inside of the axial magnetic bearing with
The side of turntable is opposite.The side that the shell closes on axial magnetic bearing is provided with sliding slot, and the inside loose joint of the sliding slot has sliding block,
The output end of the electric pushrod is connected with the lower part of sliding block, and the lower part of the electric pushrod is installed on the top of fixing seat.
Preferably, fixed block is installed, the fixed block is in E word between the side of support frame as described above and the top of fixing seat
Shape setting.
Preferably, the shell, which closes on the inside of radial direction magnetic bearing and axial magnetic bearing, is mounted on position sensor, institute
State the slot hole for being provided on the inside of axial magnetic bearing and matching with turntable.
Preferably, the spiral case side opposite with impeller is provided with air inlet, and the side of the spiral case is provided with gas outlet.
Preferably, the side of the sliding slot is equipped with sealing ring, and the sealing ring is pasted on the inner wall of shell.
Preferably, the arc-shaped setting in the lateral section of the sliding block, and the side of the sliding block is provided with and matches with turntable
Groove.
Preferably, in order to which the support to magnetic suspension air blower is better achieved, in the bottom level to magnetic suspension air blower
Guarantee when adjustment steadily, and reduce influence of the external shock to height adjustment, the material of the rubber block is natural rubber, chlorine
One of buna is a variety of.The shore hardness Y of the rubber block is 55-87；Permanent compression set amount d is 3.5%-5%.
Further, the hardness Y and permanent compression set amount d meets Yd and is less than or equal to 4.2 more than or equal to 2.1.
Preferably, the rubber block is rounded or rectangle, flat for 27.5-74.6 with the contact area S of fixing seat
Square centimetre.
Preferably, the shore hardness Y of the rubber block, permanent compression set amount d and the contact area S of itself and fixing seat are full
It is enough lower relationship:
S=γ (d1/2·Y)；
Wherein, γ is relationship factor, value range 1.47-7.1.
Compared with prior art, the utility model has the beneficial effects that
1, the bottom level of the magnetic suspension air blower in the technical program adjusts device, the magnetic generated by radial direction magnetic bearing
, suction is generated to the radial position of shaft and is fixed, the magnetic field generated by axial magnetic bearing, to the axial position of shaft
It sets and generates suction and be fixed, guarantee the stabilization of shaft.
2, the bottom level of the magnetic suspension air blower in the technical program adjusts device, is generated by permanent magnet synchronous motor
Alternating magnetic field, drives shaft rotation, and the rotation impeller rotation of shaft drives air to enter and be discharged from spiral case, effectively
Realize that shaft in radial and axial fixation, guarantees the stabilization of its operation.
3, the bottom level of the magnetic suspension air blower in the technical program adjusts device in real time, passes through the elongation of electric pushrod
And contraction, in initial start, electric pushrod elongation pushes sliding block mobile in the inside of sliding slot, to raise turntable and shaft
Position, facilitate initial start, avoid the excessive damage radial direction magnetic bearing of initia start-up current and axial magnetic bearing, stop when,
Electric pushrod elongation pushes sliding block mobile in the inside of sliding slot, so that sliding block is affixed with turntable, then shrinks electric pushrod, electricity
The shrinkage band turn disk of dynamic push rod slowly falls, and realizes the adjusting of height, avoids damage shaft.
4, the bottom level of the magnetic suspension air blower in the technical program adjusts device, by the material that rubber block is arranged
The range and relationship of matter, hardness and permanent compression set amount realize the support to magnetic suspension air blower, to magnetic suspension air blower
Bottom level adjustment when guarantee steady, and reduce influence of the external shock to height adjustment.
5, the bottom level of the magnetic suspension air blower in the technical program adjusts device, hard by the shore that rubber block is arranged
Degree, permanent compression set amount and its relationship between the contact area of fixing seat, to be further ensured that when adjusting height
Stationarity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is part-structure enlarged drawing in the utility model Fig. 1；
Fig. 3 is the sliding slot part-structure side view cutaway drawing of the utility model；
Fig. 4 is the Slipper structure side view cutaway drawing of the utility model.
In figure: 1, shell；2, shaft；3, electric pushrod；4, support frame；5, rubber block；6, fixing seat；7, permanent magnet synchronous electric
Machine；8, impeller；9, spiral case；10, turntable；11, radial direction magnetic bearing；12, axial magnetic bearing；13, sliding slot；14, sliding block；15, fixed
Block；16, position sensor；17, slot hole；18, air inlet；19, gas outlet；20, sealing ring；21, groove.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
As shown in Figs 1-4, a kind of bottom level of magnetic suspension air blower adjusts device, including shell 1, shaft 2 and electronic
Push rod 3, the lower part of the shell 1 are equipped with support frame 4, and the lower part of support frame as described above 4 is equipped with fixing seat 6 by rubber block 5,
Rubber block 5 increases the elasticity of connection, and the inside of the shell 1 is equipped with permanent magnet synchronous motor 7, and the middle part of the shaft 2 is run through
The middle part of permanent magnet synchronous motor 7, one end of the shaft 2 are equipped with impeller 8, and impeller 8 is convenient for guiding air, the leaf
The outside of wheel 8 is covered with spiral case 9, and the shaft 2 is equipped with turntable 10 far from the side of impeller 8, and the shell 2 closes on impeller 8
Inside is equipped with radial direction magnetic bearing 11, and the inside of the radial direction magnetic bearing 11 is opposite with the outside of shaft 2.
The inside that the shell 1 closes on turntable 10 is equipped with axial magnetic bearing 12, the inside of the axial magnetic bearing 12 with
The side of turntable 10 is opposite, and the side that the shell 1 closes on axial magnetic bearing 12 is provided with sliding slot 13, and the inside of the sliding slot 13 is living
It is connected to sliding block 14, the output end of the electric pushrod 3 is connected with the lower part of sliding block 14, and the lower part of the electric pushrod 3 is installed on
The top of fixing seat 6.
Fixed block 15 is installed, the fixed block 15 is in E word between the side of support frame as described above 4 and the top of fixing seat 6
Shape setting, effective realize fix, avoid shaking in operational process.
The shell 1 closes on radial direction magnetic bearing 11 and the inside of axial magnetic bearing 12 is mounted on position sensor 16, institute
The inside for stating axial magnetic bearing 12 is provided with the slot hole 17 matched with turntable 10, and slot hole 17 is convenient to place turntable 10, position
Set the detection that sensor 16 facilitates subsequent 2 position of shaft.
The spiral case 9 side opposite with impeller 8 is provided with air inlet 18, and the side of the spiral case 9 is provided with gas outlet 19, has
The realization air inlet and outlet process of effect, convenient for the realization of its function.
The side of the sliding slot 13 is equipped with sealing ring 20, and the sealing ring 20 is pasted on the inner wall of shell 1, sealing ring 20
It realizes sealing, avoids the occurrence of and leak into dust.
The arc-shaped setting in lateral section of the sliding block 14, and the side of the sliding block 14 be provided with matched with turntable 10 it is recessed
Slot 21, the convenient promotion to turntable 10 of groove 21, convenient for adjusting.
Working principle: in use, the magnetic field generated by radial direction magnetic bearing 11, generates suction to the radial position of shaft 2
And be fixed, the magnetic field generated by axial magnetic bearing 12, suction is generated to the axial position of shaft 2 and be fixed, it protects
The stabilization of shaft 2 is demonstrate,proved, the alternating magnetic field generated by permanent magnet synchronous motor 7 drives shaft 2 to rotate, the rotation band movable vane of shaft 2
8 rotation of wheel, drives air to enter and be discharged from spiral case 9, effective to realize that shaft 2 in radial and axial fixation, guarantees its fortune
Capable stabilization passes through the elongation and contraction of electric pushrod 3.In initial start, electric pushrod 3 extends, and pushes sliding block 14 in cunning
The inside of slot 13 is mobile, to raise the position of turntable 10 and shaft 2, facilitates initial start, avoids initia start-up current excessive
Radial direction magnetic bearing 11 and axial magnetic bearing 12 are damaged, when stopping, electric pushrod 3 extends, and pushes sliding block 14 in sliding slot 13
Portion is mobile, so that sliding block 14 is affixed with turntable 10, then shrinks electric pushrod 3, the shrinkage band turn disk 10 of electric pushrod 3 is slow
It falls, realizes that height is adjusted in real time, avoid damage shaft 2.
Embodiment 2
A kind of bottom level adjustment device of magnetic suspension air blower, including shell 1, shaft 2 and electric pushrod 3, the shell
The lower part of body 1 is equipped with support frame 4, and the lower part of support frame as described above 4 is equipped with fixing seat 6 by rubber block 5, and rubber block 5 increases
The elasticity of connection, the inside of the shell 1 are equipped with permanent magnet synchronous motor 7, and permanent magnet synchronous motor is run through at the middle part of the shaft 2
7 middle part, one end of the shaft 2 are equipped with impeller 8, and impeller 8 is convenient for guiding air, the outer cup of the impeller 8
There is spiral case 9, the shaft 2 is equipped with turntable 10 far from the side of impeller 8, and the inside that the shell 2 closes on impeller 8 is equipped with diameter
To magnetic bearing 11, the inside of the radial direction magnetic bearing 11 is opposite with the outside of shaft 2.
The inside that the shell 1 closes on turntable 10 is equipped with axial magnetic bearing 12, the inside of the axial magnetic bearing 12 with
The side of turntable 10 is opposite, and the side that the shell 1 closes on axial magnetic bearing 12 is provided with sliding slot 13, and the inside of the sliding slot 13 is living
It is connected to sliding block 14, the output end of the electric pushrod 3 is connected with the lower part of sliding block 14, and the lower part of the electric pushrod 3 is installed on
The top of fixing seat 6.
Fixed block 15 is installed, the fixed block 15 is in E word between the side of support frame as described above 4 and the top of fixing seat 6
Shape setting, effective realize fix, avoid shaking in operational process.
The shell 1 closes on radial direction magnetic bearing 11 and the inside of axial magnetic bearing 12 is mounted on position sensor 16, institute
The inside for stating axial magnetic bearing 12 is provided with the slot hole 17 matched with turntable 10, and slot hole 17 is convenient to place turntable 10, position
Set the detection that sensor 16 facilitates subsequent 2 position of shaft.
The spiral case 9 side opposite with impeller 8 is provided with air inlet 18, and the side of the spiral case 9 is provided with gas outlet 19, has
The realization air inlet and outlet process of effect, convenient for the realization of its function.
The side of the sliding slot 13 is equipped with sealing ring 20, and the sealing ring 20 is pasted on the inner wall of shell 1, sealing ring 20
It realizes sealing, avoids the occurrence of and leak into dust.
The arc-shaped setting in lateral section of the sliding block 14, and the side of the sliding block 14 be provided with matched with turntable 10 it is recessed
Slot 21, the convenient promotion to turntable 10 of groove 21, convenient for adjusting.
In order to which the support to magnetic suspension air blower is better achieved, protected in the bottom level adjustment to magnetic suspension air blower
Card is steady, and reduces influence of the external shock to height adjustment, and the material of the rubber block is natural rubber, in neoprene
It is one or more.The shore hardness Y of the rubber block is 55-87；Permanent compression set amount d is 3.5%-5%.Further
, the hardness Y and permanent compression set amount d meet Yd and are less than or equal to 4.2 more than or equal to 2.1.
The rubber block is rounded or rectangle, the contact area S with fixing seat are 27.5-74.6 square centimeters.
Shore hardness Y, the permanent compression set amount d of the rubber block and the contact area S of itself and fixing seat meet following
Relationship:
S=γ (d1/2·Y)；
Wherein, γ is relationship factor, value range 1.47-7.1.
Finally, it should be noted that be not intended to limit the utility model the foregoing is merely preferred embodiment, although
The utility model is described in detail with reference to the foregoing embodiments, it for those skilled in the art, still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement and so on are all contained in the utility model
Protection scope within.
Claims (6)
1. a kind of bottom level of magnetic suspension air blower adjusts device, including shell (1), shaft (2), support frame (4) and fixation
Seat (6), it is characterised in that: the lower part of the shell (1) is equipped with support frame (4), and the lower part of support frame as described above (4) passes through rubber
Block (5) is equipped with fixing seat (6), and the inside of the shell (1) is equipped with permanent magnet synchronous motor (7), and the shell (1) closes on axis
It is provided with sliding slot (13) to the side of magnetic bearing (12), the inside loose joint of the sliding slot (13) has sliding block (14), the shaft (2)
The middle part of permanent magnet synchronous motor (7) is run through at middle part, and one end of the shaft (2) is equipped with impeller (8), outside the impeller (8)
Portion is covered with spiral case (9), and the shaft (2) is equipped with turntable (10) far from the side of impeller (8), and the shell (1) closes on impeller
(8) it is equipped on the inside of radial direction magnetic bearing (11), the inside of the radial direction magnetic bearing (11) is opposite with the outside of shaft (2).
2. a kind of bottom level of magnetic suspension air blower according to claim 1 adjusts device, it is characterised in that: the branch
It is equipped with fixed block (15) between the side of support (4) and the top of fixing seat (6), the fixed block (15) is arranged in E font.
3. a kind of bottom level of magnetic suspension air blower according to claim 1 adjusts device, it is characterised in that: the shell
Body (1), which closes on the inside of radial direction magnetic bearing (11) and axial magnetic bearing (12), is mounted on position sensor (16), the axial direction
The slot hole (17) matched with turntable (10) is provided on the inside of magnetic bearing (12).
4. a kind of bottom level of magnetic suspension air blower according to claim 1 adjusts device, it is characterised in that: the snail
Shell (9) and impeller (8) opposite side are provided with air inlet (18), and the side of the spiral case (9) is provided with gas outlet (19).
5. a kind of bottom level of magnetic suspension air blower according to claim 1 adjusts device, it is characterised in that: the cunning
The side of slot (13) is equipped with sealing ring (20), and the sealing ring (20) is pasted on the inner wall of shell (1).
6. a kind of bottom level of magnetic suspension air blower according to claim 1 adjusts device, it is characterised in that: the cunning
The arc-shaped setting in lateral section of block (14), and the side of the sliding block (14) is provided with the groove (21) matched with turntable (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920049027.8U CN209385380U (en) | 2019-01-12 | 2019-01-12 | A kind of bottom level adjustment device of magnetic suspension air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920049027.8U CN209385380U (en) | 2019-01-12 | 2019-01-12 | A kind of bottom level adjustment device of magnetic suspension air blower |
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| Publication Number | Publication Date |
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| CN209385380U true CN209385380U (en) | 2019-09-13 |
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| CN201920049027.8U Active CN209385380U (en) | 2019-01-12 | 2019-01-12 | A kind of bottom level adjustment device of magnetic suspension air blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107905A (en) * | 2021-05-25 | 2021-07-13 | 重庆江增船舶重工有限公司 | Volute installation structure and method of high-speed centrifugal compressor |
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2019
- 2019-01-12 CN CN201920049027.8U patent/CN209385380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107905A (en) * | 2021-05-25 | 2021-07-13 | 重庆江增船舶重工有限公司 | Volute installation structure and method of high-speed centrifugal compressor |
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