CN204900351U - Cantilever type high speed centrifugation fan with buffer - Google Patents
Cantilever type high speed centrifugation fan with buffer Download PDFInfo
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- CN204900351U CN204900351U CN201520536153.8U CN201520536153U CN204900351U CN 204900351 U CN204900351 U CN 204900351U CN 201520536153 U CN201520536153 U CN 201520536153U CN 204900351 U CN204900351 U CN 204900351U
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- impeller
- type high
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- damping device
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Abstract
The utility model relates to a centrifugal fan, cantilever type high speed centrifugation fan with buffer 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), buffer is installed to the bottom of spiral case (3), buffer includes cylinder (5), base (6) and spring (4), cylinder (5) are fixed on base (6), install on cylinder (5) spring (4). The utility model discloses be equipped with buffer, buffer can absorb cantilever type high speed centrifugation fan in the vibration that the operation in -process produced, reduce the vibration to equipment with and the damage of internals, in addition, buffer's setting can avoid on every side that the building produces resonance with cantilever type high speed centrifugation fan, prevents that the building from collapsing.
Description
Technical field
The utility model relates to centrifugal blower, particularly relates to the cantilever type high rate centrifugal blower with damping device.
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.But centrifugal blower can produce strong vibration in the running, vibrate the part of fragile equipment and device interior, meanwhile, easily cause Adjacent Buildings to produce resonance, cause the serious consequences such as house collapse.
Summary of the invention
The utility model, for the on-stream easy shortcoming that vibration occurs of cantilever type high rate centrifugal blower in prior art, provides the cantilever type high rate centrifugal blower with damping device.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
For the damping device of cantilever type high rate centrifugal blower, comprise cylinder, base and spring, cylinder is fixed on base, and spring fitting is on cylinder.The spring be fixed on cylinder has more stability, and prevent spring bending skew when pressurized generation deformation, cylinder plays fixing effect.
With the cantilever type high rate centrifugal blower of damping device, the transmission shaft comprising spiral case, impeller and rotated by driven by motor, impeller is arranged in spiral case, and impeller is connected with transmission shaft and by transmission shaft driven rotary, the bottom of spiral case is provided with damping device.The vibration that damping device Absorbable rod cantilever type high rate centrifugal blower produces in operation process, reduce the damage vibrated equipment and its inner body, in addition, the setting of damping device can be avoided Adjacent Buildings and cantilever type high rate centrifugal blower to produce resonating, prevent building collapsing.
As preferably, cylinder is provided with the positioning ring positioned spring, spring bottom is stretched in the upper end of positioning ring, and the lower end of positioning ring is provided with annular boss, the external diameter of annular boss is greater than the diameter of spring, and positioning ring is arranged on cylinder by the nut below positioning ring.Annular boss carries out the location in Vertical direction to spring, rational in infrastructure, supporting and location is played when spring is under pressure, in addition, adjust by the degree of tightness of annular boss to spring, realize cushioning the vibration that the product of different model, different rotating speeds produces, make product have more practicability.
As preferably, be provided with horizontal ledge bottom spiral case, spring is fixed in horizontal ledge.The setting of horizontal ledge makes spring mounting structure more reasonable, and rationally can decompose the downward pressure of cantilever type high rate centrifugal blower, cushioning effect is more obvious.
As preferably, also comprise gear speeder, gear speeder adopts single-stage speedup, the thrust button that gear speeder comprises gearwheel, sliding bearing and prevents gearwheel from offseting, transmission shaft is supported by sliding bearing and is 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 be provided with the quiet wheel cap of impeller and suction pipe, 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 vibration that damping device Absorbable rod cantilever type high rate centrifugal blower produces in operation process, reduce the damage vibrated equipment and its inner body, in addition, the setting of damping device can be avoided Adjacent Buildings and cantilever type high rate centrifugal blower to produce resonating, prevent building collapsing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the damping device in this Fig. 1.
The toponym that in accompanying drawing, each number designation refers to is as follows: the quiet wheel cap of 1-transmission shaft, 2-impeller, 3-spiral case, 4-spring, 5-cylinder, 6-base, 7-positioning ring, 8-gear speeder, 9-inner casing, 10-impeller, 11-suction pipe, 31-horizontal ledge, 71-annular boss, 81-gearwheel, 82-sliding bearing, 83-thrust button.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
With the cantilever type high rate centrifugal blower of damping device, as shown in the figure, the transmission shaft 1 comprising spiral case 3, impeller 2 and rotated by driven by motor, impeller 2 is arranged in spiral case 3, and impeller 2 is connected with transmission shaft 1 and by transmission shaft 1 driven rotary, the bottom of spiral case 3 is provided with damping device, damping device comprises cylinder 5, base 6 and spring 4, cylinder 5 is fixed on base 6, and spring 4 is arranged on cylinder 5, and the upper end of spring 4 contacts with the bottom of spiral case 3.Cylinder 5 is provided with the positioning ring 7 that spring 4 is positioned, the upper end of positioning ring 7 is stretched into bottom spring 4, the lower end of positioning ring 7 is provided with annular boss 71, the external diameter of annular boss 71 is greater than the diameter of spring 4, positioning ring 7 is arranged on the below of spring 4 and is positioned by annular boss 71 pairs of springs 4, the below of positioning ring 7 is provided with the nut be fixed on cylinder 5, and nut positions on cylinder 5 positioning ring 7.Be provided with horizontal ledge 31 bottom spiral case 3, spring 4 is fixed in horizontal ledge 31, and spring 4 is provided with two.Also comprise gear speeder 8, gear speeder 8 adopts single-stage speedup, the thrust button 83 that gear speeder 8 comprises gearwheel 81, sliding 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 damping device, 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, the bottom of spiral case (3) is provided with damping device, damping device comprises cylinder (5), base (6) and spring (4), cylinder (5) is fixed on base (6), spring (4) is arranged on cylinder (5).
2. the cantilever type high rate centrifugal blower with damping device according to claim 1, it is characterized in that: cylinder (5) is provided with the positioning ring (7) that spring (4) is positioned, spring (4) bottom is stretched in the upper end of positioning ring (7), the lower end of positioning ring (7) is provided with annular boss (71), the external diameter of annular boss (71) is greater than the diameter of spring (4), and positioning ring (7) is arranged on cylinder (5) by the nut of positioning ring (7) below.
3. the cantilever type high rate centrifugal blower with damping device according to claim 1, is characterized in that: spiral case (3) bottom is provided with horizontal ledge (31), and spring (4) is fixed in horizontal ledge (31).
4. the cantilever type high rate centrifugal blower with damping device according to claim 1, it is characterized in that: also comprise gear speeder (8), gear speeder (8) adopts single-stage speedup, gear speeder (8) comprises gearwheel (81), sliding bearing (82) and the thrust button (83) preventing gearwheel from offseting, transmission shaft (1) is supported by sliding bearing (82) and is connected with gearwheel (81), thrust button (83) is arranged on transmission shaft (1), gearwheel (81) is connected with motor and drives transmission shaft (1) to rotate.
5. the cantilever type high rate centrifugal blower with damping device 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 damping device according to claim 1, is characterized in that: impeller (2) is semi-open type structure.
7. the cantilever type high rate centrifugal blower with damping device 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 |
|---|---|---|---|
| CN201520536153.8U CN204900351U (en) | 2015-07-23 | 2015-07-23 | Cantilever type high speed centrifugation fan with buffer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536153.8U CN204900351U (en) | 2015-07-23 | 2015-07-23 | Cantilever type high speed centrifugation fan with buffer |
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| Publication Number | Publication Date |
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| CN204900351U true CN204900351U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520536153.8U Active CN204900351U (en) | 2015-07-23 | 2015-07-23 | Cantilever type high speed centrifugation fan with buffer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805564A (en) * | 2019-11-29 | 2020-02-18 | 张国高 | Centrifugal fan |
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2015
- 2015-07-23 CN CN201520536153.8U patent/CN204900351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805564A (en) * | 2019-11-29 | 2020-02-18 | 张国高 | Centrifugal fan |
| CN110805564B (en) * | 2019-11-29 | 2020-10-16 | 张国高 | Centrifugal fan |
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