High-speed rotor structure for air suspension centrifugal fan

Abstract

The utility model relates to a high-speed rotor structure for an air suspension centrifugal fan. The high-speed rotor structure comprises a fixing base, a first supporting assembly, an impeller and a second supporting assembly. The first supporting assembly comprises a first rotating shaft, a first sleeve and a thrust disc, one end of the first rotating shaft is connected with one end of the fixing base, the fixing base and the first rotating shaft are sleeved with the first sleeve, and the first sleeve is sleeved with the thrust disc; the impeller sleeves the first sleeve and the first rotating shaft; the second supporting assembly comprises a second rotating shaft and a second sleeve, the second rotating shaft is connected with the end, away from the first rotating shaft, of the fixing base, and the fixing base and the second rotating shaft are sleeved with the second sleeve. According to the high-speed rotor structure for the air suspension centrifugal fan, the first rotating shaft and the second rotating shaft are connected with the two ends of the fixing base correspondingly, the fixing base and the first rotating shaft are sleeved with the first sleeve, the fixing base and the second rotating shaft are sleeved with the second sleeve, the first sleeve is sleeved with the thrust disc, the first sleeve and the first rotating shaft are sleeved with the impeller, and assembling is convenient; the high-speed rotor structure for the air suspension centrifugal fan is simple in structure and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of air suspension blowers, in particular to a high-speed rotor structure for an air suspension centrifugal blower. Background Art

[0002] An air suspension blower refers to a blower that uses an air dynamic pressure bearing to replace a traditional sliding or rolling bearing, so as to achieve the purpose of high speed, frictionless, and long life. Specifically, the output shaft of the motor is assembled on the air bearing, the outer diameter of the output shaft is smaller than the inner diameter of the air bearing, and there is an air film gap between the output shaft and the air bearing. Before starting to work, the output shaft naturally rests on the air bearing; after starting to work, the output shaft starts to rotate, driving the surrounding air to rotate accordingly, and flowing around the output shaft as the output shaft rotates. When the speed of the output shaft reaches a certain value, the flow rate of the surrounding air reaches a high enough level and the pressure reaches a large enough level. When the air flows between the output shaft and the air bearing, a supporting force is provided to the output shaft, enabling the output shaft to break away from contact with the air bearing and rotate while suspended. When the rotational speed of the output shaft is within a certain range, the output shaft can always be suspended. However, the current rotor structure is relatively complex and not convenient for disassembly and assembly. Summary of the Utility Model

[0003] Based on this, in view of the above problems, it is necessary to provide a high-speed rotor structure for an air suspension centrifugal blower that is convenient for disassembly and assembly.

[0004] A high-speed rotor structure for an air suspension centrifugal blower includes a fixed seat, a first support assembly, an impeller, and a second support assembly; the first support assembly includes a first rotating shaft, a first sleeve, and a thrust disk. One end of the first rotating shaft is connected to one end of the fixed seat. The first sleeve is sleeved on the fixed seat and the first rotating shaft, and the thrust disk is sleeved on the first sleeve; the impeller is sleeved on the first sleeve and the first rotating shaft; the second support assembly includes a second rotating shaft and a second sleeve. The second rotating shaft is connected to the end of the fixed seat far from the first rotating shaft, and the second sleeve is sleeved on the fixed seat and the second rotating shaft.

[0005] In one embodiment, the first rotating shaft includes a first connection portion, a first limiting portion, a second connection portion, a second limiting portion, and a third connection portion that are connected in sequence. The first connection portion is connected to the fixed seat, the first limiting portion is clamped to one end of the fixed seat, and the second limiting portion abuts against the impeller.

[0006] In one embodiment, it further includes a fastening assembly. The fastening assembly includes a bushing, a fastener, and a sheath. The bushing is sleeved on the second limiting portion, one end of the bushing abuts against one end of the impeller, the fastener is sleeved on the third connection portion, one end of the fastener abuts against one end of the bushing, and the sheath is sleeved on the fastener.

[0007] In one embodiment, the first sleeve includes a first support portion and a second support portion communicating with the first support portion. The first support portion is sleeved on one end of the fixed seat, and the air suspension bearing is sleeved on the first support portion; the thrust disk and the impeller are both sleeved on the second support portion. One end of the thrust disk abuts against the first support portion, and the other end abuts against one end of the impeller.

[0008] In one embodiment, a counterweight disk is further included, and the counterweight disk is sleeved on the second sleeve.

[0009] In one embodiment, a partition plate is further included, and the partition plate is sleeved on the second sleeve, and one end of the partition plate abuts against the counterweight disk.

[0010] In one embodiment, a heat dissipation wheel is further included, and the heat dissipation wheel is sleeved on the second sleeve and the second rotating shaft, and one end of the heat dissipation wheel abuts against one end of the counterweight disk.

[0011] In one embodiment, the second rotating shaft includes a first fixing portion, a first positioning portion, a second fixing portion, a second positioning portion and a third fixing portion connected in sequence. The first fixing portion is connected to one end of the fixed seat, the first positioning portion is clamped to one end of the fixed seat, and the second positioning portion abuts against the heat dissipation wheel.

[0012] In one embodiment, the second sleeve includes a first installation portion and a second installation portion communicating with the first installation portion. The first installation portion is sleeved on the fixed seat, and the air suspension bearing is sleeved on the first installation portion; the partition plate, the counterweight disk and the heat dissipation wheel are sequentially sleeved on the second installation portion.

[0013] In one embodiment, the first rotating shaft and the second rotating shaft are respectively threadedly connected to both ends of the fixed seat.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The high-speed rotor structure for an air suspension centrifugal fan of the present utility model is connected to both ends of the fixed seat through the first rotating shaft and the second rotating shaft respectively. The first sleeve is sleeved on the fixed seat and the first rotating shaft, and the second sleeve is sleeved on the fixed seat and the second rotating shaft. The thrust disk is sleeved on the first sleeve, and the impeller is sleeved on the first sleeve and the first rotating shaft, which is convenient for assembly; the high-speed rotor structure for an air suspension centrifugal fan of the present utility model has a simple structure and is convenient for disassembly and assembly. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a high-speed rotor structure for an air suspension centrifugal fan shown in an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 a sectional view along line A-A in

[0018] Figure 3 is Figure 1 a schematic structural view of a fixed seat, a first rotating shaft, a first sleeve, a second rotating shaft, a second sleeve, a bushing and fasteners in the high-speed rotor structure for the air suspension centrifugal fan shown in

[0019] The meanings of the reference numerals in the drawings are as follows:

[0020] 100, high-speed rotor structure for air suspension centrifugal fan;

[0021] 10, fixed seat; 11, housing; 12, first end shell; 13, second end shell; 20, first support assembly; 21, first rotating shaft; 211, first connecting portion; 212, first limiting portion; 213, second connecting portion; 214, second limiting portion; 215, third connecting portion; 22, first sleeve; 221, first supporting portion; 222, second supporting portion; 23, thrust disc; 30, impeller;

[0022] 40, second support assembly; 41, second rotating shaft; 411, first fixing portion; 412, first positioning portion; 413, second fixing portion; 414, second positioning portion; 415, third fixing portion; 42, second sleeve; 421, first mounting portion; 422, second mounting portion; 50, fastening assembly; 51, bushing; 52, fastener; 53, sheath; 60, counterweight disc; 70, partition; 80, heat dissipation wheel. Detailed embodiments

[0023] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0029] Please refer to Figures 1 to 3 , for the high-speed rotor structure 100 of an air suspension centrifugal fan according to an embodiment of the utility model, which includes a fixed seat 10, a first support assembly 20, an impeller 30 and a second support assembly 40; the first support assembly 20 includes a first rotating shaft 21, a first sleeve 22 and a thrust disc 23, one end of the first rotating shaft 21 is connected to one end of the fixed seat 10, the first sleeve 22 is sleeved on the fixed seat 10 and the first rotating shaft 21, and the thrust disc 23 is sleeved on the first sleeve 22; the impeller 30 is sleeved on the first sleeve 22 and the first rotating shaft 21; the second support assembly 40 includes a second rotating shaft 41 and a second sleeve 42, the second rotating shaft 41 is connected to the end of the fixed seat 10 away from the first rotating shaft 21, and the second sleeve 42 is sleeved on the fixed seat 10 and the second rotating shaft 41. The high-speed rotor structure 100 of this air suspension centrifugal fan is connected to both ends of the fixed seat 10 through the first rotating shaft 21 and the second rotating shaft 41 respectively. The first sleeve 22 is sleeved on the fixed seat 10 and the first rotating shaft 21, the second sleeve 42 is sleeved on the fixed seat 10 and the second rotating shaft 41, the thrust disc 23 is sleeved on the first sleeve 22, and the impeller 30 is sleeved on the first sleeve 22 and the first rotating shaft 21, which is convenient for assembly.

[0030] As Figures 1 to 3 shown, in this embodiment, the fixed seat 10 includes a housing 11, a first end shell 12 and a second end shell 13, and the first end shell 12 and the second end shell 13 are respectively connected to both ends of the housing 11; optionally, the width of the cross-section of the first end shell 12 is smaller than the width of the cross-section of the housing 11 to form a step; the second end shell 13 is arranged in the same way.

[0031] As Figure 2 And Figure 3As shown, the first support assembly 20 includes a first rotating shaft 21, a first sleeve 22, and a thrust disk 23. One end of the first rotating shaft 21 is connected to one end of the fixed seat 10. The first sleeve 22 is sleeved on the fixed seat 10 and the first rotating shaft 21. An air suspension bearing is sleeved on the first sleeve 22. The thrust disk 23 is sleeved on the first sleeve 22. Optionally, one end of the first rotating shaft 21 is threadedly connected to one end of the fixed seat 10. Further, the first rotating shaft 21 includes a first connecting portion 211, a first limiting portion 212, a second connecting portion 213, a second limiting portion 214, and a third connecting portion 215 that are connected in sequence. The first connecting portion 211 is connected to the fixed seat 10, and the first limiting portion 212 is snap-connected to one end of the fixed seat 10. In one embodiment, the first connecting portion 211 is threadedly connected to the first end shell 12, and the first limiting portion 212 is snap-connected to one end of the first end shell 12 to limit the position.

[0032] In one embodiment, the first sleeve 22 includes a first support portion 221 and a second support portion 222 that communicates with the first support portion 221. The first support portion 221 is sleeved on one end of the fixed seat 10. The air suspension bearing is sleeved on the first support portion 221. Optionally, the width of the second support portion 222 is smaller than the width of the first support portion 221 to form a step. Further, the first support portion 221 is sleeved on the first end shell 12, and one end of the first support portion 221 abuts against the housing 11 to limit the position. The second connecting portion 213 passes through the first sleeve 22. The thrust disk 23 is sleeved on the second support portion 222, and one end of the thrust disk 23 abuts against the first support portion 221.

[0033] As Figure 1 With Figure 2 As shown, the impeller 30 is sleeved on the first sleeve 22 and the first rotating shaft 21. Optionally, the second connecting portion 213 passes through the impeller 30, and the second limiting portion 214 abuts against the impeller 30. Further, the impeller 30 is sleeved on the second support portion 222, and one end of the thrust disk 23 abuts against one end of the impeller 30 for limiting.

[0034] As Figure 2 With Figure 3As shown, the second support assembly 40 includes a second shaft 41 and a second sleeve 42. The second shaft 41 is connected to one end of the fixed seat 10 away from the first shaft 21. The second sleeve 42 is sleeved on the fixed seat 10 and the second shaft 41. The air suspension bearing is sleeved on the second sleeve 42. Optionally, the second shaft 41 is threadedly connected to one end of the fixed seat 10. Further, the second shaft 41 includes a first fixing portion 411, a first positioning portion 412, a second fixing portion 413, a second positioning portion 414 and a third fixing portion 415 connected in sequence. The first fixing portion 411 is connected to one end of the fixed seat 10, and the first positioning portion 412 is clamped to one end of the fixed seat 10. In one embodiment, the first fixing portion 411 is threadedly connected to the second end shell 13, and the first positioning portion 412 is clamped to one end of the second end shell 13 to limit the position. In one embodiment, the structure of the second shaft 41 is similar to that of the first shaft 21, and will not be described in detail below.

[0035] In one embodiment, the second sleeve 42 includes a first mounting portion 421 and a second mounting portion 422 connected to the first mounting portion 421. The first mounting portion 421 is sleeved on one end of the fixing seat 10, and the air suspension bearing is sleeved on the first mounting portion 421; optionally, the first mounting portion 421 is sleeved on the second end shell 13, and one end of the first mounting portion 421 abuts against the shell 11 to limit the position; the second fixing portion 413 passes through the second sleeve 42; in one embodiment, the structure of the second sleeve 42 is similar to that of the first sleeve 22, and will not be described in detail below.

[0036] like Figures 1 to 3 As shown, the high-speed rotor structure 100 for the air suspension centrifugal fan also includes a fastening assembly 50, which includes a bushing 51, a fastener 52 and a sleeve 53. The bushing 51 is sleeved on the second limiting portion 214, and the impeller 30 is sleeved on the bushing 51. One end of the bushing 51 abuts against one end of the impeller 30 for limiting; the fastener 52 is sleeved on the third connecting portion 215, and one end of the fastener 52 abuts against one end of the bushing 51, and the sleeve 53 is sleeved on the fastener 52; optionally, the fastener 52 is threadedly connected to the third connecting portion 215 for easy operation; the sleeve 53 is sleeved on the fastener 52 and the third connecting portion 215 to prevent accidental injury to the operator.

[0037] like Figure 1 and Figure 2 As shown, the high-speed rotor structure 100 for the air suspension centrifugal fan also includes a counterweight plate 60, which is sleeved on the second sleeve 42. Optionally, the weight of the counterweight plate 60 is equal to that of the thrust plate 23 to maintain balance; further, the counterweight plate 60 is sleeved on the second mounting portion 422.

[0038] Please check again Figure 1 and Figure 2, the high-speed rotor structure 100 for an air suspension centrifugal fan further includes a partition plate 70. The partition plate 70 is sleeved on the second sleeve 42, and one end of the partition plate 70 abuts against the counterweight plate 60. Optionally, the partition plate 70 is sleeved on the second mounting portion 422, one end of the partition plate 70 is connected to the counterweight plate 60, and the other end is connected to the first mounting portion 421. By adjusting the position of the partition plate 70, the position of the counterweight plate 60 can be adjusted.

[0039] As Figure 1 shown in Figure 2 , the high-speed rotor structure 100 for an air suspension centrifugal fan further includes a cooling wheel 80. The cooling wheel 80 is sleeved on the second sleeve 42 and the second rotating shaft 41, and one end of the cooling wheel 80 abuts against one end of the counterweight plate 60. Optionally, the second positioning portion 414 abuts against the cooling wheel 80 to fix the position of the cooling wheel 80. Further, the partition plate 70, the counterweight plate 60, and the cooling wheel 80 are sequentially sleeved on the second mounting portion 422. During use, a nut is used to threadedly connect to the third fixing portion 415 to fix the position of the cooling wheel 80.

[0040] During use, the first rotating shaft 21 and the second rotating shaft 41 are respectively threadedly connected to both ends of the fixing seat 10. The first sleeve 22 is sleeved on one end of the fixing seat 10 and the first rotating shaft 21, and the second sleeve 42 is sleeved on the other end of the fixing seat 10 and the second rotating shaft 41. Then, the thrust plate 23 is sleeved on the second supporting portion 222, the impeller 30 is sleeved on the second supporting portion 222, and then the bushing 51 is sleeved on the second limiting portion 214 and the impeller 30. Then, a fastener 52 is used to threadedly connect to the third connecting portion 215 to fix the position of the bushing 51. Then, the protective sleeve 53 is sleeved on the fastener 52 and the third connecting portion 215. Then, the partition plate 70, the counterweight plate 60, and the cooling wheel 80 are sequentially sleeved on the second mounting portion 422. Finally, a nut is used to threadedly connect to the third fixing portion 415 to fix the cooling wheel 80. The high-speed rotor structure 100 for an air suspension centrifugal fan adopts a modular structure, is convenient for disassembly and assembly, and is easy to maintain.

[0041] The high-speed rotor structure 100 for an air suspension centrifugal fan is connected to both ends of the fixing seat 10 through the first rotating shaft 21 and the second rotating shaft 41 respectively. The first sleeve 22 is sleeved on the fixing seat 10 and the first rotating shaft 21, and the second sleeve 42 is sleeved on the fixing seat 10 and the second rotating shaft 41. The thrust plate 23 is sleeved on the first sleeve 22, and the impeller 30 is sleeved on the first sleeve 22 and the first rotating shaft 21, which is convenient for assembly. The high-speed rotor structure 100 for an air suspension centrifugal fan has a simple structure and is convenient for disassembly and assembly.

[0042] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0043] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A high-speed rotor structure for an air suspension centrifugal fan, characterized in that: It includes a fixed seat, a first supporting assembly, an impeller and a second supporting assembly; the first supporting assembly includes a first rotating shaft, a first sleeve and a thrust plate, one end of the first rotating shaft is connected to one end of the fixed seat, the first sleeve is sleeved on the fixed seat and the first rotating shaft, and the thrust plate is sleeved on the first sleeve; the impeller is sleeved on the first sleeve and the first rotating shaft; the second supporting assembly includes a second rotating shaft and a second sleeve, the second rotating shaft is connected to one end of the fixed seat away from the first rotating shaft, and the second sleeve is sleeved on the fixed seat and the second rotating shaft.

2. The high-speed rotor structure for an air suspension centrifugal fan according to claim 1, characterized in that: The first rotating shaft includes a first connecting portion, a first limiting portion, a second connecting portion, a second limiting portion and a third connecting portion which are connected in sequence, the first connecting portion is connected to the fixing seat, the first limiting portion is clamped with one end of the fixing seat, and the second limiting portion abuts against the impeller.

3. The high-speed rotor structure for an air suspension centrifugal fan according to claim 2, characterized in that: It also includes a fastening assembly, which includes a bushing, a fastener and a sleeve, the bushing is sleeved on the second limiting portion, one end of the bushing abuts against one end of the impeller, the fastener is sleeved on the third connecting portion, one end of the fastener abuts against one end of the bushing, and the sleeve is sleeved on the fastener.

4. The high-speed rotor structure for an air suspension centrifugal fan according to claim 1, characterized in that: The first sleeve includes a first support portion and a second support portion connected to the first support portion, the first support portion is sleeved on one end of the fixed seat, and the air suspension bearing is sleeved on the first support portion; the thrust plate and the impeller are both sleeved on the second support portion, one end of the thrust plate abuts against the first support portion, and the other end abuts against one end of the impeller.

5. The high-speed rotor structure for an air suspension centrifugal fan according to claim 1, characterized in that: It also includes a counterweight plate, which is sleeved on the second sleeve.

6. The high-speed rotor structure for an air suspension centrifugal fan according to claim 5, characterized in that: It also includes a partition plate, which is sleeved on the second sleeve, and one end of the partition plate abuts against the counterweight plate.

7. The high-speed rotor structure for an air suspension centrifugal fan according to claim 6, characterized in that: It also includes a heat dissipation wheel, which is sleeved on the second sleeve and the second rotating shaft, and one end of the heat dissipation wheel abuts against one end of the counterweight plate.

8. The high-speed rotor structure for an air suspension centrifugal fan according to claim 7, characterized in that: The second rotating shaft includes a first fixing portion, a first positioning portion, a second fixing portion, a second positioning portion and a third fixing portion which are connected in sequence, the first fixing portion is connected to one end of the fixing seat, the first positioning portion is clamped to one end of the fixing seat, and the second positioning portion abuts against the heat dissipation wheel.

9. The high-speed rotor structure for an air suspension centrifugal fan according to claim 7, characterized in that: The second sleeve includes a first mounting portion and a second mounting portion connected to the first mounting portion, the first mounting portion is sleeved on the fixing seat, and the air suspension bearing is sleeved on the first mounting portion; the partition, the counterweight plate and the heat dissipation wheel are sequentially sleeved on the second mounting portion.

10. The high-speed rotor structure for an air suspension centrifugal fan according to claim 1, characterized in that: The first rotating shaft and the second rotating shaft are respectively threadedly connected to two ends of the fixing seat.

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