CN1213234C - Thrust bearing liner fixing structure of centrifugal compressor - Google Patents
Thrust bearing liner fixing structure of centrifugal compressor Download PDFInfo
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- CN1213234C CN1213234C CN 02153231 CN02153231A CN1213234C CN 1213234 C CN1213234 C CN 1213234C CN 02153231 CN02153231 CN 02153231 CN 02153231 A CN02153231 A CN 02153231A CN 1213234 C CN1213234 C CN 1213234C
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- thrust bearing
- bearing lining
- fixing bolt
- centrifugal compressor
- fixed structure
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Abstract
The present invention relates to a thrust bearing liner fixing structure of a centrifugal compressor, which comprises a radial shaft combined with a drive motor, thrust bearing liners, and fixed bolts, wherein the radial shaft and the drive motor can rotate together along the same direction, a thrust bearing can be combined with the radial shaft by the thrust bearing liners, and the thrust bearing liners can be fixed on the radial shaft along the radius direction of the thrust bearing liners by the fixed bolts. The thrust bearing liner fixing structure of a centrifugal compressor of the present invention uses the fixed bolts or assembling pins to fix the thrust bearing liners used for driving the thrust bearing on the radial shaft along the radius direction of the thrust bearing liners at equal intervals; thus, the thrust bearing liners can be simply disassembled or assembled from the shaft, and disassembling time and reassembling time for testing products and repairing failure are shortened. Compared with the prior art, the present invention can reduce the number of the fixed bolts or the assembling pins for fixing the thrust bearing liners, and thus, production cost can be reduced.
Description
Technical field
The present invention relates to a kind of thrust bearing lining fixed structure of centrifugal compressor, particularly relate to a kind of thrust bearing lining fixed structure of centrifugal compressor of compressible air.
Background technique
In general, compressor is a kind of device that mechanical energy can be converted to the compression energy of compressible fluid.It is divided into substantially and comes and goes movable type, eddy type, polytype such as centrifugal and rotary.Wherein, centrifugal compressor be utilize impeller rotating force with fluid by axial suction, the direction along centrifugal force is discharged again after overcompression.This compressor can be divided into one section and two section type according to the quantity of impeller and pressing chamber, and can be divided into formula and formula back-to-back face-to-face according to the arrangement mode of impeller.In addition, centrifugal compressor also can use multiple bearings such as ball bearing and pneumatic bearing according to its application area and purposes, and pneumatic bearing then can be divided into hydrostatic bearing and hydraulic bearing according to its operating principle.In compressor, the running shaft that the driving force of dependence motor is rotated supports with radial bearing and thrust bearing usually.The present invention is the improvement that the thrust bearing lining fixed structure to centrifugal compressor carries out.Fig. 1 is the simple structure sectional view of two sections compression centrifugal compressors of formula back-to-back of prior art.Fig. 2 is the thrust bearing lining fixed structure sectional view of prior art centrifugal compressor.As shown in Figure 1 and Figure 2, the centrifugal compressor of prior art comprises casing 100, drive motor 110, running shaft 120, suction pipe 130, first pressing chamber 150, second pressing chamber 250, first impeller 160, second impeller 260, first radial bearing 170, second radial bearing 270, thrust bearing 280, first diffuser 190, second diffuser 290, dielectric gas flow duct 200 and discharge tube 300 substantially.Drive motor 110 is installed in the casing 100; Running shaft 120 is inserted on the drive motor 110, and its driving by drive motor 110 is rotated; Suction pipe 130 is positioned at a side of casing 100, and its rotation by first impeller 160 sucks dielectric gas; First pressing chamber 150 and second pressing chamber 250 can carry out once and secondary compression the dielectric gas that flows into by suction pipe 130 by the rotation of first impeller 160 and second impeller 260; First impeller 160 and second impeller 260 are fixed on the tail end of two radial axles 121,221 of running shaft 120, its dielectric gas can be carried out once with secondary compression to the high temperature high pressure conditions; First radial bearing 170 and second radial bearing 270 are arranged on the two ends of running shaft 120, and it can support own wt owing to drive motor 110 and act on radially gravity on the running shaft 120; Thrust bearing 280 is arranged on the side of second radial bearing 270, and it can support the end thrust that running shaft 120 is applied by the dielectric gas after once compressing; First diffuser 190 and second diffuser 290 are arranged on the foreign steamer of first impeller 160 and second impeller 260, and it can improve through the mobile stationarity of the dielectric gas after first impeller 160 and 260 compressions of second impeller and the driving efficient of compressor; Dielectric gas flow duct 200 is connecting the casing 100 and second pressing chamber 250, and it can make the dielectric gas after the once compression flow to second impeller 260; Discharge tube 300 can be discharged the dielectric gas through second impeller, 260 secondary compression.In addition, be arranged on and be inserted with the first radial axle board 171 on the outer circumferential face of first radial bearing 170 at running shaft 120 two ends and second radial bearing 270 and the second radial axle board, 271, the first radial axle boards 171 are connected with casing 100 with the second radial axle board 271.Thrust bearing lining 281 is between running shaft 120 that is provided with thrust bearing 280 and thrust bearing 280, and thrust bearing lining 281 is aimed at the rotating center of running shaft 120, and is fixed on the end of running shaft 120 vertically by assembling pin 282 and fixing bolt 283.In addition, the thrust bearing cap 284 that is used for fixing thrust bearing 280 is connected with radial axle board 271.Being used to protect the casing 141 of first press part 140 of first impeller 160, second impeller 260, first diffuser 190 and second diffuser 290 and the casing 241 of second press part 240 also is to be combined in the first radial axle board 171 and the second radial axle board 271 and casing 100 by fixing bolt.During drive motor 110 on power supply being applied to the running shaft 120 that is combined in centrifugal compressor, drive motor 110 will be rotated in a certain direction, by the rotatable running shaft that combines with it 120 of the driving force of drive motor 110, first impeller 160 that is fixed on two radial axles, 121,221 ends of running shaft 120 also is rotated with the direction identical with the sense of rotation of running shaft 120 with second impeller 260.When first impeller 160 and 260 rotations of second impeller, will flow to first pressing chamber 150 by the low-temp low-pressure inflating medium gas that is located at suction pipe 130 on first impeller 160, once be compressed into high-temperature high-pressure state by the rotation of first impeller 160 then, again by of internal flow and the discharge of first diffuser 190 to compressor.Can in second pressing chamber 250, flow by the dielectric gas flow duct 200 that connects the compressor case 100 and second pressing chamber 250 to the inner compressed media gas of discharging of compressor, and carry out secondary compression to the high temperature high pressure conditions by the rotation that is installed in second impeller 260 on second pressing chamber 250, discharge through second diffuser 290 and by discharge tube 300 then.But the dielectric gas that carries out secondary compression by second impeller 260 is the stable gas flow during through second diffuser 290, also can further pressurize simultaneously.As mentioned above, by once with secondary compression with two sections compression centrifugal compressors that improve compressor efficiency in, the thrust bearings 280 in the secondary compression portion 240 can support by dielectric gas flow duct 200 to second pressing chamber 250 in a mobile compressed media gas to the thrust that axially applies of running shaft 120.Though the thrust bearing lining 281 of combining closely with thrust bearing 280 can be fixed on the end of the running shaft 120 that is provided with thrust bearing 280 by a plurality of assembling pins 282 and fixing bolt 283, but the very thin thickness of the thrust bearing lining 280 on the bigger radial axle board 271 of radius owing to combine closely, and be thrust bearing lining 281 to be fixed on the end outer peripheral surface of running shaft 120 with a plurality of fixing bolts 283 and assembling pin 282, when needs assembly and disassembly second press part 240, instrument such as hand or wrench will be run into running shaft 120 and the bigger radial axle board 271 of radius with fixing bolt 283 and assembling pin 282 adjacency, brings a lot of inconvenience will for like this assembly and disassembly of fixing bolt 283 and assembling pin 282.In addition, become flexible, need usually to use a plurality of fixing bolts 285, can increase the cost of production of compressor so undoubtedly in order to prevent the fixing bolt 283 that thrust bearing lining 281 is fixed on running shaft 120 ends.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide the thrust bearing lining fixed structure of the simple and convenient and centrifugal compressor that can reduce production costs of a kind of assembly and disassembly operation.
In order to achieve the above object, the thrust bearing lining fixed structure of centrifugal compressor provided by the invention comprises: can together rotate along same direction with drive motor, and the radial axle that combines with it; Thrust bearing can be combined in the thrust bearing lining on the radial axle; With can the thrust bearing lining be fixed on fixing bolt on the radial axle along the radial direction of thrust bearing lining.
By equidistantly offering a plurality of through holes, fixing bolt can be fixed on the thrust bearing lining on the radial axle by the radial direction of through hole along the thrust bearing lining on the outer peripheral surface of thrust bearing lining.
In described thrust bearing lining fixed structure, fixing bolt is with 180 spacings of spending thrust bearing lining and radial axle to be interfixed, be provided with through hole differing on the thrust bearing linings of 90 degree and the radial axle, can insert in it thrust bearing lining is fixed on assembling pin on the radial axle with fixing bolt.
In described thrust bearing lining fixed structure, for can directly being inserted into by fixing bolt, the nut that makes fixing bolt is fixed in the circumferential surface of the thrust bearing lining on the radial axle, on the circumferential surface of thrust bearing lining,, the nut of the fixing bolt of secure bond thrust bearing lining and radial axle is inserted in the groove by equidistantly having offered nut size with fixing bolt and groove with certain depth.
In the thrust bearing lining fixed structure that has by groove insertion fixing bolt nut, if the diameter of thrust bearing lining is bigger, the nut that then is inserted in the fixing bolt in the groove just might on-streamly be deviate from thrust bearing, in order to strengthen the combination force of thrust bearing lining and radial axle, can utilize the bigger fixing bolt of diameter interfix thrust bearing lining and radial axle.
The thrust bearing lining fixed structure of centrifugal compressor of the present invention be utilize thrust bearing lining that fixing bolt or assembling pin will be used to drive thrust bearing along the radial direction of thrust bearing lining equidistantly to be fixed on radial axle, very simple in the time of so not only can making from axle dismounting or assembling thrust bearing lining, dismantle when having shortened product testing or troubleshooting and assemble the spent time again, particularly compared with the prior art can also reduce the quantity of the fixing bolt or the assembling pin of fixing thrust bearing lining, so just can reduce production costs.
Description of drawings
Be elaborated below in conjunction with the thrust bearing lining fixed structure of the drawings and specific embodiments to centrifugal compressor of the present invention.
Fig. 1 is the simple structure sectional view of two sections compression centrifugal compressors of formula back-to-back of prior art.
Fig. 2 is the thrust bearing lining fixed structure sectional view of prior art centrifugal compressor.
Fig. 3 is centrifugal compressor first an embodiment's of the present invention thrust bearing lining fixed structure chart.
Fig. 4 is centrifugal compressor second an embodiment's of the present invention thrust bearing lining fixed structure chart.
Fig. 5 is centrifugal compressor the 3rd an embodiment's of the present invention thrust bearing lining fixed structure chart.
Fig. 6 is centrifugal compressor the 4th an embodiment's of the present invention thrust bearing lining fixed structure chart.
Embodiment
Fig. 3 is centrifugal compressor first an embodiment's of the present invention thrust bearing lining fixed structure chart.As shown in Figure 3, thrust bearing lining fixed structure of the present invention is but that the fixing bolt 12 of secure bond thrust bearing lining 10 and running shaft 120 is fixed on thrust bearing lining 10 along the radial direction of thrust bearing lining 10, and thrust bearing lining 10 is fixed on mechanism on the radial axle 221.It can be used to replace as shown in Figure 2 utilize fixing bolt 283 and assembling pin 282 thrust bearing lining 281 to be fixed on the thrust bearing lining fixed structure of the prior art of running shaft 120 ends.When inserting fixing bolt 12 in the through hole 11, it can be fixed on thrust bearing lining 10 on the radial axle 221.Through hole 11 be according to the radial direction of thrust bearing lining 10 just on the outer peripheral surface of thrust bearing lining 10 by the equidistant formation of 90 or 120 degree.
Fig. 4 is centrifugal compressor second an embodiment's of the present invention thrust bearing lining fixed structure chart.As shown in Figure 4, in the thrust bearing lining fixed structure in the present embodiment, fixing bolt 12a interfixes thrust bearing lining 10a and radial axle 221 with 180 spacings of spending, be provided with through hole 13 differing on the thrust bearing lining 10a of 90 degree and the radial axle 221, can insert in it thrust bearing lining 10a is fixed on assembling pin 14 on the radial axle 221 with fixing bolt 12a.
Fig. 5 is centrifugal compressor the 3rd an embodiment's of the present invention thrust bearing lining fixed structure chart.As shown in Figure 5, in the thrust bearing lining fixed structure in the present embodiment, for can directly being inserted into by fixing bolt 12b, the nut that makes fixing bolt 12b is fixed in the circumferential surface of the thrust bearing lining 10b on the radial axle 221, on the circumferential surface of thrust bearing lining 10b,, the nut of the fixing bolt 12b of secure bond thrust bearing lining 10b and radial axle 221 is inserted in the groove 15 by equidistantly having offered the groove 15 that has fixing bolt 12b nut size and have certain depth.
Fig. 6 is centrifugal compressor the 4th an embodiment's of the present invention thrust bearing lining fixed structure chart.As shown in Figure 6, have in the fixed structure of the thrust bearing lining 10c that inserts fixing bolt 12c nut by groove 15 in the present invention, if the diameter D1 of thrust bearing lining 10c is bigger, the nut that then is inserted in the fixing bolt 12c in the groove 15 just might on-streamly be deviate from thrust bearing 280, in order to strengthen the combination force of thrust bearing lining 10c and radial axle 221, can utilize the bigger fixing bolt 12c of diameter interfix thrust bearing lining 10c and radial axle 221.The symbol D that does not describe in foregoing represents the diameter of thrust bearing lining 10b shown in Figure 5.When having after protection thrust bearing 280 and passive thrust bearing lining 10 be inserted into radial axle 221; thrust bearing lining 10 is combined closely on the radial axle board 271 of second radial bearing 270 that is inserted with running shaft 120, then a plurality of fixing bolts 12 are inserted on the through hole 11.Through hole 11 be the radial direction of thrust bearing lining 10 just on the outer peripheral surface of thrust bearing lining 10 by the equidistant formation of 90 or 120 degree.The fixing bolt 12 that uses instruments such as wrench will be inserted on thrust bearing lining 10 and the radial axle 221 is then tightened, so that thrust bearing lining 10 is fixed on the radial axle 221.The thrust bearing lining fixed structure of centrifugal compressor of the present invention goes for formula centrifugal compressor back-to-back, also goes for face-to-face formula centrifugal compressor.
Claims (5)
1, a kind of thrust bearing lining fixed structure of centrifugal compressor, it is characterized in that: the thrust bearing lining fixed structure of described centrifugal compressor comprises: can together rotate along same direction with drive motor (110), and the radial axle that combines with it (221); Thrust bearing (280) can be combined in the thrust bearing lining (10) on the radial axle (221); With can thrust bearing lining (10) be fixed on fixing bolt (12) on the radial axle (221) along the radial direction of thrust bearing lining (10).
2, the thrust bearing lining fixed structure of centrifugal compressor according to claim 1, it is characterized in that: by equidistantly offering a plurality of through holes (11), fixing bolt (12) can be fixed on thrust bearing lining (10) on the radial axle (221) by the radial direction of through hole (11) along thrust bearing lining (10) on the outer peripheral surface of described thrust bearing lining (10).
3, the thrust bearing lining fixed structure of centrifugal compressor according to claim 1, it is characterized in that: in described thrust bearing lining fixed structure, fixing bolt (12a) is with 180 spacings of spending thrust bearing lining (10a) and radial axle (221) to be interfixed, be provided with through hole (13) differing on the thrust bearing linings (10a) of 90 degree and the radial axle (221), can insert in it thrust bearing lining (10a) is fixed on assembling pin (14) on the radial axle (221) with fixing bolt (12a).
4, the thrust bearing lining fixed structure of centrifugal compressor according to claim 1, it is characterized in that: in described thrust bearing lining fixed structure, for can directly being inserted into by fixing bolt (12b), the nut that makes fixing bolt (12b) is fixed in the circumferential surface of the thrust bearing lining (10b) on the radial axle (221), on the circumferential surface of thrust bearing lining (10b),, the nut of the fixing bolt (12b) of secure bond thrust bearing lining (10b) and radial axle (221) is inserted in the groove (15) by equidistantly having offered nut size with fixing bolt (12b) and groove (15) with certain depth.
5, the thrust bearing lining fixed structure of centrifugal compressor according to claim 1, it is characterized in that: in the thrust bearing lining fixed structure that has by groove (15) insertion fixing bolt (12c) nut, if the diameter (D1) of thrust bearing lining (10c) is bigger, the nut that then is inserted in the fixing bolt (12c) in the groove (15) just might on-streamly be deviate from thrust bearing (280), in order to strengthen the combination force of thrust bearing lining (10c) and radial axle (221), can utilize the bigger fixing bolt of diameter (12c) interfix thrust bearing lining (10c) and radial axle (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02153231 CN1213234C (en) | 2002-11-26 | 2002-11-26 | Thrust bearing liner fixing structure of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02153231 CN1213234C (en) | 2002-11-26 | 2002-11-26 | Thrust bearing liner fixing structure of centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1474067A CN1474067A (en) | 2004-02-11 |
| CN1213234C true CN1213234C (en) | 2005-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02153231 Expired - Fee Related CN1213234C (en) | 2002-11-26 | 2002-11-26 | Thrust bearing liner fixing structure of centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1213234C (en) |
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2002
- 2002-11-26 CN CN 02153231 patent/CN1213234C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1474067A (en) | 2004-02-11 |
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