CN205036624U - Cantilever type high speed centrifugation fan with airtight - Google Patents
Cantilever type high speed centrifugation fan with airtight Download PDFInfo
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- CN205036624U CN205036624U CN201520537261.7U CN201520537261U CN205036624U CN 205036624 U CN205036624 U CN 205036624U CN 201520537261 U CN201520537261 U CN 201520537261U CN 205036624 U CN205036624 U CN 205036624U
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- impeller
- transmission shaft
- seal member
- gas seal
- spiral case
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Abstract
The utility model relates to a centrifugal fan, cantilever type high speed centrifugation fan with airtight is disclosed, it includes spiral case (3), impeller (2) and transmission shaft (1) that rotates by the motor drive, install in spiral case (3) impeller (2), impeller (2) are connected with transmission shaft (1) and are driven rotatoryly by transmission shaft (1), be equipped with shaft hole (31) on spiral case (3), install airtight (4) on shaft hole (31), the internal surface of airtight (4) is equipped with annular groove (41), airtight (4) are equipped with annular boss (42), annular boss (42) passes through the fix with screw on spiral case (3), transmission shaft (1) is at airtight (4) internal rotation. The utility model discloses it is very obvious in the advantage in the aspect of energy -conserving and the compactedness to ordinary centrifugal fan, better energy -conserving effect and flexibility have, can effectively prevent the gas leakage through having airtight of annular groove, simultaneously, airtight simple structure, the convenient loading and unloading.
Description
Technical field
The utility model relates to centrifugal blower, particularly relates to the cantilever type high rate centrifugal blower with gas seal member.
Background technique
Centrifugal blower is the mechanical energy relying on input, and improve gas pressure and to supply gas side by side the machinery of body, it is a kind of driven fluid machinery.Centrifugal blower is widely used in factory, mine, tunnel, cooling tower, vehicle, the ventilation of boats and ships and building, dust discharge and cooling; The ventilation of boiler and industrial furnace and air inducing; Cooling in the apparatus of air conditioning and domestic electric appliance and ventilation; The oven dry of cereal and selecting and recommending; The inflation of wind-tunnel wind regime and Hovercraft and propelling etc.Often volume is large, energy consumption is high for centrifugal blower, gas seal member is more complicated, therefore, produces a kind of energy efficient and with the cantilever type high rate centrifugal blower of easy gas seal member.
Summary of the invention
The utility model, for the more complicated shortcoming of gas seal member in prior art, provides the gas seal member for cantilever type high rate centrifugal blower and cantilever type high rate centrifugal blower.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
With the cantilever type high rate centrifugal blower of gas seal member, the transmission shaft comprising spiral case, impeller and rotated by driven by motor, impeller is arranged in spiral case, impeller is connected with transmission shaft and by transmission shaft driven rotary, spiral case is provided with axis hole, axis hole is provided with gas seal member, and the internal surface of gas seal member is provided with two or more annular grooves.On gas seal member internal surface the design of annular groove make sealability better, be applicable on high-speed rotating shaft, gas can be made to rotate in annular groove by two or more annular groove, gas is not easily revealed, effectively prevent gas from being discharged by axis hole, make structure simpler simultaneously, dismantle more convenient, gas seal member is provided with annular boss, annular boss is fixed by screws on spiral case, the design of annular boss makes rational in infrastructure, simultaneously, convenient for assembly and dismounting, transmission shaft rotates in gas seal member, the internal surface of gas seal member is provided with multiple annular groove with oil sealing.Utilize the suction capactity of turbine engine Centrifugal Impeller Inlet, and utilize the high advantage of turbomachinery efficiency to realize the large discharge efficient decimation of vacuum, thus greatly reduce the energy consumption of vacuum system.
As preferably, also comprise coupling shaft, transmission shaft is connected by coupling shaft with impeller, impeller is provided with the first locating stud coordinated with transmission shaft.Coupling shaft runs through impeller, making impeller when carrying out high-revolving rotation, the effect of support can be played, prevent impeller discontinuity equalization simultaneously and rupture, by the first locating stud, radial location being carried out to impeller, preventing impeller from skidding when being transmitted axle driven rotary.
As preferably, impeller is provided with impeller cover, and impeller cover is provided with the second locating stud coordinated with impeller, and impeller cover is fixed by screws on coupling shaft.When the setting of impeller cover prevents from sucking air, the impurity in air, steam etc. enter impeller internal, affect the rotation of impeller.
As preferably, also comprise gear speeder, gear speeder adopts single-stage speedup, the thrust button that gear speeder comprises gearwheel, bearing and prevents gearwheel from offseting, transmission shaft is by bearings and be connected with gearwheel, thrust button is arranged on transmission shaft, and gearwheel is connected with motor and drives transmission shaft to rotate.Increased the rotating speed of transmission shaft by gear speeder, realize the High Rotation Speed of impeller, thus realize vacuum drawn.
As preferably, be provided with inner casing in spiral case, inner casing is connected with the quiet wheel cap of impeller and suction pipe, and spiral case coordinates with inner casing and forms gas flow, and suction pipe is connected with the quiet wheel cap of impeller, and the quiet wheel cap of inner casing, impeller and suction pipe form one and be embedded in spiral case.Suction pipe, the quiet wheel cap of inner casing, impeller and suction pipe and spiral case form medium and go out runner, and make more reasonable structure, vacuum effectiveness is better.
As preferably, impeller is semi-open type structure.The impeller of semi-open type structure improves degree of vacuum and the suction capactity of suction eye.
As preferably, the wheel disc of impeller and blade are integral type structure.More reasonable structure, has more stability.
The utility model is owing to have employed above technological scheme, there is significant technique effect: the utility model to the advantage of common centrifugal blower in energy-conservation and compactedness clearly, effectively Leakage Gas can be prevented by the gas seal member with annular groove, meanwhile, simple, the convenient assembling and disassembling of the structure of gas seal member.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-transmission shaft, 2-impeller, 3-spiral case, 4-gas seal member, 5-coupling shaft, the 6-the first locating stud, the 7-the second locating stud, 8-gear speeder, 9-inner casing, the quiet wheel cap of 10-impeller, 11-suction pipe, 21-impeller cover, 31-axis hole, 41-Stamping Steel Ribbon, 42-annular boss, 81-gearwheel, 82-bearing, 83-thrust button.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
For the gas seal member of cantilever type high rate centrifugal blower, as shown in the figure, with the cantilever type high rate centrifugal blower of gas seal member, as shown in the figure, comprise spiral case 3, impeller 2 and the transmission shaft 1 rotated by driven by motor, impeller 2 is arranged in spiral case 3, impeller 2 is connected with transmission shaft 1 and by transmission shaft 1 driven rotary, spiral case 3 is provided with axis hole 31, axis hole 31 is provided with gas seal member 4, the internal surface of gas seal member 4 is provided with multiple annular groove 41, the internal surface of gas seal member 4 is provided with six annular grooves 41, the effect of sealing is played with annular groove 4, gas is rotated in annular groove 4, prevent gas from being discharged by axis hole, transmission shaft 1 rotates in gas seal member 4.Gas seal member 4 is provided with annular boss 42, and annular boss 42 is fixed by screws on spiral case 3.Also comprise coupling shaft 5, transmission shaft 1 is connected by coupling shaft 5 with impeller 2, impeller 2 is provided with the first locating stud 6 coordinated with transmission shaft 1.Impeller 2 is provided with impeller cover 21, and impeller cover 21 is provided with the second locating stud 7 coordinated with impeller 2, and impeller cover 21 is fixed by screws on coupling shaft 5.Also comprise gear speeder 8, gear speeder 8 adopts single-stage speedup, the thrust button 83 that gear speeder 8 comprises gearwheel 81, bearing 82 and prevents gearwheel from offseting, transmission shaft 1 is provided with small gear, transmission shaft 1 is supported by sliding bearing 82, small gear engages with gearwheel 81, thrust button 83 to be arranged on transmission shaft 1 and to be arranged on the both sides of gearwheel 81 thus to prevent the skew that gearwheel produces when high speed rotating, prevent the small gear on gearwheel 81 and rotatingshaft 1 from cannot engage, gearwheel 81 is connected with motor and drives transmission shaft 1 to rotate.Inner casing 9 is installed in spiral case 3, inner casing 9 is connected with the quiet wheel cap 10 of impeller and suction pipe 11, spiral case 3 coordinates with inner casing 9 and forms gas flow, and suction pipe 11 is connected with the quiet wheel cap 10 of impeller, and the quiet wheel cap 10 of inner casing 9, impeller and suction pipe 11 form one and be embedded in spiral case 3.Rotated by transmission shaft 1 impeller 2, gas is sucked at a high speed from suction pipe 11, and through having the runner of high-revolving impeller 2, the final high-temperature gas that formed is discharged at a high speed from the outlet of spiral case 3, thus form vacuum state at the suction port of impeller 2, realize vacuum drawn.Transmission shaft 1, spiral case 3, impeller 2, the quiet wheel cap of impeller 10 and suction pipe 11 coordinate the independent pump head of formation, and independent pump head stands in the side of gear speeder 8, realizes the vacuum drawn of a single position of cantilever type high rate centrifugal blower; Or two independent pump heads stand in gear speedup case 10 both sides respectively, realize a cantilever type high rate centrifugal blower to the vacuum drawn of two or more diverse location; For the structure of two, four or six independent pump heads, one, two or corresponding two the independent pump heads of three transmission shafts, 1, transmission shaft 1 can be adopted and adopt and be arranged symmetrically with structure.Corresponding two pump heads of axle also adopt and are arranged symmetrically with structure.Each pump head can be designed to the needs that identical physical dimension meets the extraction of multiple degree of vacuum.The outlet of each pump head both can interconnect also can discharge separately, can connect silencing apparatus directly discharge from the high-temperature gas of outlet discharge, also reclaims heat by heat exchanger and is used for other purposes.Impeller 2 is semi-open type structure, the design of impeller blade adopts suction side extend forward the degree of vacuum and the suction capactity that improve suction eye with the method such as three-dimensional twisted.The wheel disc of impeller 2 and blade adopt integral structure, and wheel disc and blade form integral structure by overall milling.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. with the cantilever type high rate centrifugal blower of gas seal member, it is characterized in that: comprise spiral case (3), impeller (2) and the transmission shaft (1) rotated by driven by motor, impeller (2) is arranged in spiral case (3), impeller (2) is connected with transmission shaft (1) and by transmission shaft (1) driven rotary, spiral case (3) is provided with axis hole (31), axis hole (31) is provided with gas seal member (4), the internal surface of gas seal member (4) is provided with two or more annular groove (41), gas seal member (4) is provided with annular boss (42), annular boss (42) is fixed by screws on spiral case (3), transmission shaft (1) rotates in gas seal member (4).
2. the cantilever type high rate centrifugal blower with gas seal member according to claim 1, it is characterized in that: also comprise coupling shaft (5), transmission shaft (1) is connected by coupling shaft (5) with impeller (2), impeller (2) is provided with the first locating stud (6) coordinated with transmission shaft (1).
3. the cantilever type high rate centrifugal blower with gas seal member according to claim 2, it is characterized in that: impeller (2) is provided with impeller cover (21), impeller cover (21) is provided with the second locating stud (7) coordinated with impeller (2), and impeller cover (21) is fixed by screws on coupling shaft (5).
4. the cantilever type high rate centrifugal blower with gas seal member according to claim 1, it is characterized in that: also comprise gear speeder (8), gear speeder (8) adopts single-stage speedup, the thrust button (83) that gear speeder (8) comprises gearwheel (81), bearing (82) and prevents gearwheel from offseting, transmission shaft (1) is supported by bearing (82) and is connected with gearwheel (81), thrust button (83) is arranged on transmission shaft (1), and gearwheel (81) is connected with motor and drives transmission shaft (1) to rotate.
5. the cantilever type high rate centrifugal blower with gas seal member according to claim 1, it is characterized in that: inner casing (9) is installed in spiral case (3), inner casing (9) is provided with the quiet wheel cap of impeller (10) and suction pipe (11), spiral case (3) coordinates with inner casing (9) and forms gas flow, suction pipe (11) is connected with the quiet wheel cap of impeller (10), and inner casing (9), the quiet wheel cap of impeller (10) and suction pipe (11) form one and be embedded in spiral case (3).
6. the cantilever type high rate centrifugal blower with gas seal member according to claim 1, is characterized in that: impeller (2) is semi-open type structure.
7. the cantilever type high rate centrifugal blower with gas seal member according to claim 1, is characterized in that: the wheel disc of impeller (2) and blade are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537261.7U CN205036624U (en) | 2015-07-23 | 2015-07-23 | Cantilever type high speed centrifugation fan with airtight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537261.7U CN205036624U (en) | 2015-07-23 | 2015-07-23 | Cantilever type high speed centrifugation fan with airtight |
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| Publication Number | Publication Date |
|---|---|
| CN205036624U true CN205036624U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520537261.7U Active CN205036624U (en) | 2015-07-23 | 2015-07-23 | Cantilever type high speed centrifugation fan with airtight |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321467A (en) * | 2016-10-14 | 2017-01-11 | 重庆通用工业(集团)有限责任公司 | Heat pump compressor structure |
| CN106762742A (en) * | 2017-01-03 | 2017-05-31 | 滨州东瑞机械有限公司 | A kind of high rate turbine vacuum pump with energy recovery turbine |
-
2015
- 2015-07-23 CN CN201520537261.7U patent/CN205036624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321467A (en) * | 2016-10-14 | 2017-01-11 | 重庆通用工业(集团)有限责任公司 | Heat pump compressor structure |
| CN106762742A (en) * | 2017-01-03 | 2017-05-31 | 滨州东瑞机械有限公司 | A kind of high rate turbine vacuum pump with energy recovery turbine |
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