CN207080399U - Magnetic suspension compressor - Google Patents
Magnetic suspension compressor Download PDFInfo
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- CN207080399U CN207080399U CN201721034218.4U CN201721034218U CN207080399U CN 207080399 U CN207080399 U CN 207080399U CN 201721034218 U CN201721034218 U CN 201721034218U CN 207080399 U CN207080399 U CN 207080399U
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- magnetic suspension
- main shaft
- seal member
- bearing
- location division
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Abstract
The utility model provides a kind of magnetic suspension compressor, and magnetic suspension compressor includes main shaft, rotary part, seal member and fixed component；Rotary part is set on main shaft, and can be rotated under the drive of main shaft；Seal member has mounting hole, and is set in by mounting hole on rotary part, and seal member has the location division of cylinder, and fixed component has the locating slot that shape matches with location division；Location division is stretched into locating slot, along location division, in the radial direction, the distance between the surface of location division and the cell wall of locating slot are more than or equal to 0.2mm.The utility model is not only convenient for installing, and also helps the gap between the adjustment rotary part and the seal member, ensures that main shaft has enough levitation gaps, avoids the occurrence of stuck phenomenon.
Description
Technical field
An electro-technical field is the utility model is related to, more particularly to a kind of magnetic suspension compressor.
Background technology
As the continuous progress of science and technology and the increasingly raising of people's living standard, magnetic suspension compressor are extensive
In being made applied to household electrical appliances, the assembly precision of magnetic suspension compressor directly affects the stabilization of its performance.
Existing all kinds of seal clearances of magnetic suspension compressor, such as seal member (such as oil resistance sealing) and rotary part
Gap between (such as oil blocking ring), because the axiality between seal member and rotary part only relies on part processing essence
Degree ensures, but part is more, and dimension chain is longer because the Dimension Measurement chain residing for gap is related to, and gap is arrived in final accumulation
The concentricity tolerance fluctuation at place is 0mm~0.2mm, and fixed installation is also arranged with outside seal member in practical set
Fixed component (such as two level diffuser) on housing, the gap between seal member and fixed component is in the prior art
0.01mm to 0.04mm, or two be interference fit between, it is too small the adjustment space of seal member to be so present, when tolerance ripple
When moving the gap width for having exceeded seal member and fixed component, the stuck phenomenon of main shaft can be caused to occur.
Utility model content
Main purpose of the present utility model is to provide a kind of magnetic suspension compressor, and it is enough that it can ensure that main shaft has
Levitation gap, avoid the occurrence of stuck phenomenon.
On the one hand the utility model provides a kind of magnetic suspension compressor, including main shaft, rotary part, seal member and solid
Determine part；
The rotary part is set on the main shaft, and can be rotated under the drive of the main shaft；
The seal member has mounting hole, and is set in by the mounting hole on the rotary part, the sealing
Part has the location division of cylinder, and the fixed component has the locating slot that shape matches with the location division；
The location division is stretched into the locating slot, along the location division in the radial direction, the table of the location division
The distance between cell wall of face and the locating slot is more than or equal to 0.2mm.
More preferably, the axiality of the location division and the locating slot is 0 to 0.02mm.
More preferably, the rotary part has the installation portion of cylinder, and the mounting hole of the seal member is circle,
The seal member is set on the installation portion by the mounting hole,
Along the installation portion in the radial direction, the distance between the surface of the installation portion and the inner wall of the hole installing
More than or equal to 0.06mm.
More preferably, the axiality of the installation portion and the mounting hole is 0 to 0.02mm.
More preferably, in addition to attachment screw；
Connection through hole is provided with the seal member, is provided with the fixed component and the connection through hole phase
Corresponding connecting screw hole；
The attachment screw passes through the connection through hole, and is threaded in the connecting screw hole, to will be described close
Envelope part is fixedly connected in the fixed component.
More preferably, the rotary part includes one stage impeller and/or sencond stage impeller and/or oil blocking ring；
The seal member includes one-level labyrinth seal and/or two level labyrinth seal and/or oil resistance sealing；
The fixed component includes one stage impeller diffuser and/or return channel and/or two level diffuser.
More preferably, the radial transducer of magnetic suspension bearing, bearing block and annular is included；
The bearing sleeve is located on the main shaft, and in the axial direction along the main shaft, the both sides of the bearing block are set respectively
It is equipped with the first holding tank and the second holding tank；
The magnetic suspension bearing is set on the main shaft and is arranged in first holding tank, the radial transducer
It is set on the main shaft and is arranged in second holding tank, detects the same of the main shaft and the magnetic suspension bearing
Axle degree.
More preferably, in addition to bearing controller；
The bearing controller electrically connects with the radial transducer and the magnetic suspension bearing respectively.
More preferably, the quantity of the magnetic suspension bearing is two, the quantity of the bearing block for two and respectively with two
The position correspondence of the magnetic suspension bearing, the quantity of the radial transducer for the two and respectively position with two bearing blocks
Put corresponding.
The magnetic suspension compressor of offer of the present utility model, using along the location division in the radial direction, it is described
The distance between cell wall of the surface of location division and the locating slot is more than or equal to 0.2mm technical scheme, is not only convenient for pacifying
Fill, and also help the gap between the adjustment rotary part and the seal member, ensure that main shaft has enough hang
Floating gap, avoids the occurrence of stuck phenomenon.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms one of the present utility model
Point, schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is the magnetic suspension compressor structural representation in embodiment one；
Fig. 2 is the A portions enlarged diagram in figure；
Fig. 3 is that the main shaft in Fig. 1 drives inwall rolling condition schematic diagram of the rotary part along mounting hole；
In figure：1st, main shaft；2nd, rotary part；21st, one stage impeller；22nd, sencond stage impeller；23rd, oil blocking ring；24th, installation portion；3、
Seal member；31st, one-level labyrinth seal；32nd, two level labyrinth seal；33rd, oil resistance seals；34th, mounting hole；35th, location division；36、
Connect through hole；4th, fixed component；41st, one stage impeller diffuser；42nd, return channel；43rd, two level diffuser；44th, locating slot；45th, even
Connect screw；5th, attachment screw；6th, magnetic suspension bearing；7th, bearing block；71st, the first holding tank；72nd, the second holding tank；8th, radially pass
Sensor；9th, housing.
Embodiment
It is specific below in conjunction with the utility model to make the purpose of this utility model, technical scheme and advantage clearer
Technical solutions of the utility model are clearly and completely described for embodiment and corresponding accompanying drawing.Obviously, described embodiment
Only it is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, this area
The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to the utility model
The scope of protection.
As shown in Figure 1, 2, a kind of magnetic suspension compressor, including main shaft 1, rotary part 2, seal member 3 and fixed component
4, rotary part 2 is set on main shaft 1, and can be rotated under the drive of main shaft 1.Seal member 3 has mounting hole 34, and leads to
Mounting hole 34 is crossed to be set on rotary part 2, seal member 3 have cylinder location division 35, fixed component 4 have shape with
The locating slot 44 that location division 35 matches, locating slot 44 mentioned here matches with location division 35 refers to that locating slot 44 is also circle
Cylindricality.Location division 35 is stretched into locating slot 44, along location division 35 in the radial direction, the surface of location division 35 and locating slot 44
The distance between cell wall be more than or equal to 0.2mm.
Because the distance between cell wall of the surface of location division 35 and locating slot 44 is 0.01 to 0.04mm in the prior art,
The utility model can be given using the distance between surface and cell wall of locating slot 44 of location division 35 more than or equal to 0.2mm
Position portion 35 (i.e. seal member 3) provides enough gap adjustment spaces, is so not only convenient for installing, and also helps adjustment institute
Rotary part and the gap whenever between part are stated, ensures that main shaft 1 has enough levitation gaps, avoids the occurrence of stuck
It is stuck between phenomenon, such as location division 35 and locating slot 44.Specifically, the axiality of location division 35 and locating slot 44 for 0 to
0.02mm。
Further, rotary part 2 has the installation portion 24 of cylinder, and the mounting hole 34 of seal member 3 is circle, is sealed
Part 3 is set on installation portion 24 by mounting hole 34, along installation portion 24 in the radial direction, the surface of installation portion 24 and peace
The distance between dress inwall of hole 34 is more than or equal to 0.06mm.Installation portion 24 (i.e. rotary part 2) and installation can so be ensured
Enough levitation gaps be present between hole 34 (i.e. seal member 3), and then make the stable operation of main shaft 1, avoid low-frequency vibration, half
The failures such as fast whirling motion occur, and improve whole aircraft reliability.Specifically, the axiality of installation portion 24 and mounting hole 34 is 0 to 0.02mm.
As a kind of embodiment, as shown in Figure 1, 2, in addition to attachment screw 5.The company of being provided with seal member 3
Hole 36 is connected, the connecting screw hole 45 corresponding with connection through hole 36 is provided with fixed component 4, attachment screw 5 passes through connection
Through hole 36, and be threaded in connecting screw hole 45, seal member 3 is fixedly connected in fixed component 4.In actual system
In work, the magnetic suspension compressor also includes housing 9, and fixed component 4 can be fixedly connected on housing 9 in assembling, pass through company
Connecing screw 5 will be fixedly connected on seal member 3 in fixed component 4, and seal member 3 can be made to be in relatively steady state,
Change axial location so as to prevent it from displacement occur, and then ensure the stabilization of the operation of the magnetic suspension compressor.
It should be noted that as shown in FIG., rotary part 2 includes one stage impeller 21 and/or sencond stage impeller 22 and/or resistance
Oil ring 23, seal member 3 include one-level labyrinth seal 31 and/or two level labyrinth seal 32 and/or oil resistance sealing 33, fixed component
4 include one stage impeller diffuser 41 and/or return channel 42 and/or two level diffuser 43.Wherein, one-level labyrinth seal 31 respectively with
One stage impeller 21 and one stage impeller diffuser 41 are corresponding to be installed, two level labyrinth seal 32 respectively with sencond stage impeller 22 and return channel 42
Corresponding installation, the installation corresponding with oil blocking ring 23 and two level diffuser 43 respectively of oil resistance sealing 33.
As a kind of embodiment, as shown in Figure 1, 2, the magnetic suspension compressor also includes magnetic suspension bearing 6, bearing block
7 and the radial transducer 8 of annular.Bearing block 7 is set on main shaft 1 in practical set, and bearing block 7 is fixedly connected on housing
On 9.In the axial direction along main shaft 1, the both sides of bearing block 7 are respectively arranged with the first holding tank 71 and the second holding tank 72.Magnetic suspension
Bearing 6 is set on main shaft 1 and is arranged in the first holding tank 71, and radial transducer 8 is set on main shaft 1 and is arranged at second
In holding tank 72, to detect the axiality of main shaft 1 and magnetic suspension bearing 6.Radial transducer 8 is to main shaft 1 and magnetic suspension bearing 6
Axiality detection be not be inventive point of the present utility model, a kind of but prior art, the utility model just with
This prior art, therefore its operation principle is no longer described in detail herein.
Further, in addition to bearing controller (figure is to show), bearing controller respectively with radial transducer 8 and magnetcisuspension
Floating axle holds 6 electrical connections, and radial transducer 8 detects the axiality information of main shaft 1 and magnetic suspension bearing 6, and sends this information to
Bearing controller, bearing controller is according to the main shaft 1 and the axiality information of magnetic suspension bearing 6 received to magnetic suspension bearing 6
It is powered, magnetic suspension bearing 6 is applied electromagnetic force to main shaft 1.As shown in figure 3, magnetic suspension bearing 6 applies electromagnetic force to main shaft 1, will
Main shaft 1 is inhaled dynamic along+Y ,-X ,-Y ,+X, +Y direction, has adjusted the axial location of main shaft 1, makes the same of magnetic suspension bearing 6 and main shaft 1
Axle degree is in a good number range, and typically 0 to 0.02mm.It is hair of the present utility model that wherein bearing controller, which is not,
Bright, but a kind of prior art, the utility model is just with this prior art, therefore to its operation principle herein not
It is described in detail again.
Specifically, can as shown in fig. 1, the quantity of magnetic suspension bearing 6 is two, and the quantity of bearing block 7 for two and is divided
Not with the position correspondence of two magnetic suspension bearings 6, the quantity of radial transducer 8 for the two and respectively position with two bearing blocks 7
Put corresponding.By detection of two radial transducers 8 to main shaft 1 and the axiality of magnetic suspension bearing 6, detection knot can be ensured
Fruit is more accurate.
Embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this area
Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model,
Any modification, equivalent substitution and improvements made etc., it should be included within right of the present utility model.
Claims (9)
- A kind of 1. magnetic suspension compressor, it is characterised in that：Including main shaft (1), rotary part (2), seal member (3) and fixed component (4)；The rotary part (2) is set on the main shaft (1), and can be rotated under the drive of the main shaft (1)；The seal member (3) has mounting hole (34), and is set in the rotary part (2) by the mounting hole (34) On, the seal member (3) has the location division (35) of cylinder, and the fixed component (4) has shape and the location division (35) locating slot (44) to match；The location division (35) is stretched into the locating slot (44), along the location division (35) in the radial direction, it is described fixed The distance between the surface in position portion (35) and the cell wall of the locating slot (44) are more than or equal to 0.2mm.
- 2. magnetic suspension compressor according to claim 1, it is characterised in that：The axiality of the location division (35) and the locating slot (44) is 0 to 0.02mm.
- 3. magnetic suspension compressor according to claim 1, it is characterised in that：The rotary part (2) has the installation portion (24) of cylinder, and the mounting hole (34) of the seal member (3) is circle Shape, the seal member (3) are set on the installation portion (24) by the mounting hole (34),Along the installation portion (24) in the radial direction, the surface of the installation portion (24) and the mounting hole (34) inwall it Between distance be more than or equal to 0.06mm.
- 4. magnetic suspension compressor according to claim 3, it is characterised in that：The axiality of the installation portion (24) and the mounting hole (34) is 0 to 0.02mm.
- 5. according to the magnetic suspension compressor described in Claims 1-4 any one, it is characterised in that：Also include attachment screw；Connection through hole (36) is provided with the seal member (3), is provided with the fixed component (4) and the connection The corresponding connecting screw hole (45) of through hole (36)；The attachment screw (5) is threaded in the connecting screw hole (45) through the connection through hole (36), to incite somebody to action The seal member (3) is fixedly connected in the fixed component (4).
- 6. magnetic suspension compressor according to claim 5, it is characterised in that：The rotary part (2) includes one stage impeller (21) and/or sencond stage impeller (22) and/or oil blocking ring (23)；The seal member (3) includes one-level labyrinth seal (31) and/or two level labyrinth seal (32) and/or oil resistance sealing (33)；The fixed component (4) includes one stage impeller diffuser (41) and/or return channel (42) and/or two level diffuser (43).
- 7. according to the magnetic suspension compressor described in Claims 1-4 any one, it is characterised in that：Also include the radial transducer (8) of magnetic suspension bearing (6), bearing block (7) and annular；The bearing block (7) is set on the main shaft (1), in the axial direction along the main shaft (1), the two of the bearing block (7) Side is respectively arranged with the first holding tank (71) and the second holding tank (72)；The magnetic suspension bearing (6) is set on the main shaft (1) and is arranged in first holding tank (71), the radial direction Sensor (8) is set on the main shaft (1) and is arranged in second holding tank (72), to detect the main shaft (1) With the axiality of the magnetic suspension bearing (6).
- 8. magnetic suspension compressor according to claim 7, it is characterised in that：Also include bearing controller；The bearing controller electrically connects with the radial transducer (8) and the magnetic suspension bearing (6) respectively.
- 9. magnetic suspension compressor according to claim 8, it is characterised in that：The quantity of the magnetic suspension bearing (6) is two, the quantity of the bearing block (7) for two and respectively with two magnetic The position correspondence of suspension bearing (6), the quantity of the radial transducer (8) for two and respectively with two bearing blocks (7) Position it is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034218.4U CN207080399U (en) | 2017-08-17 | 2017-08-17 | Magnetic suspension compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034218.4U CN207080399U (en) | 2017-08-17 | 2017-08-17 | Magnetic suspension compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080399U true CN207080399U (en) | 2018-03-09 |
Family
ID=61419517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721034218.4U Active CN207080399U (en) | 2017-08-17 | 2017-08-17 | Magnetic suspension compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435621A (en) * | 2017-08-17 | 2017-12-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension compressor and its clearance adjustment method |
-
2017
- 2017-08-17 CN CN201721034218.4U patent/CN207080399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435621A (en) * | 2017-08-17 | 2017-12-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension compressor and its clearance adjustment method |
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