CN2083650U - Fan air guiding wheel speed regulator - Google Patents
Fan air guiding wheel speed regulator Download PDFInfo
- Publication number
- CN2083650U CN2083650U CN 90223566 CN90223566U CN2083650U CN 2083650 U CN2083650 U CN 2083650U CN 90223566 CN90223566 CN 90223566 CN 90223566 U CN90223566 U CN 90223566U CN 2083650 U CN2083650 U CN 2083650U
- Authority
- CN
- China
- Prior art keywords
- guiding wheel
- speed
- spring
- wind guiding
- inducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 239000000411 inducer Substances 0.000 claims description 22
- 238000012856 packing Methods 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a wind guiding wheel speed regulator for a fan with rotary blades. The wind guiding wheel speed regulator for a fan with rotary blades is suitable for the rotary speed regulation of the wind guiding wheels of various fans with rotary blades. The wind guiding wheel speed regulator for a fan with rotary blades uses the constant friction force moment generated by the contact of a speed regulating spring on a regulating wheel and the end surface of a wind guiding wheel to regulate the rotary speed of the wind guiding wheel which is from zero to a maximum value. The utility model has the advantages of simple structure, low cost, and convenient operation; the speed regulating performance of the wind guiding wheel is stable; stepless speed regulation can be realized, etc.
Description
The utility model relates to a kind of improved rotary blade fan inducer arrangements for speed regulation.
Existing commercially available rotary blade fan, great majority are the arrangements for speed regulation that adopt minitype motor driving inducer constant speed to rotate, the also rotary blade fan of some, and its inducer arrangements for speed regulation are to adopt planar axes to mode of braking.The sensitivity of this kind arrangements for speed regulation is low, the speed adjusting performance instability.The disclosed application number of Chinese patent communique is in 88207854.2 the patent application, its inducer wind-drive arrangements for speed regulation are such, braking sleeve (6) and bearing (9) are housed on axle (1), spring (8) is housed between this two part, and turn speed governing knob (1) makes braking sleeve (6) cooperate as cone with bearing (9) and regulates the inducer rotating speed.Owing to its stationary fit power after the drive fit between cone is very big, need bigger axial thrust load to separate cone.On the structure of this device, only depend on the pressure that sheds spring (8) that cone is separated and be difficult to realize, and can cause inducer speed adjusting performance instability.This device is also comparatively complicated in addition, cone requirement on machining accuracy height, and used part is more, has increased cost of production.
The purpose of this utility model is to provide the rotary blade fan inducer that a kind of structure is simpler, speed adjusting performance is stable arrangements for speed regulation for the deficiency that overcomes above-mentioned existence.
The utility model is achieved in that a kind of rotary blade fan inducer arrangements for speed regulation, its structure is to load onto inducer (6) on wind-guiding wheel shaft (4) successively, lock washer (12), Regulation spring (8), regulating wheel (7), fastening with screw (9), regulating wheel (7) interior edge face and lock washer (12) end face pass through friction speed-regulating, described regulating wheel (7) inner chamber has 1～4 eccentric projection (7-1) uniform on circumference, be fixed with governor spring (11) on each eccentric projection (7-1), there is a packing ring (5) lock washer (12) back, is with 1 Regulation spring (8) along wind-guiding wheel shaft (4) between regulating wheel (7) and packing ring (5).
Described governor spring (11) shape is that an end is a right angle type, and the other end is a circular arc, and its material is Stainless Steel Wire or Spring Steel Wire or phosphorus bronze sheet.
Working principle of the present utility model is as follows: utilize governor spring (11) produce permanent friction torque regulate inducer (6) rotating speed by zero to maximum value.Turn regulating wheel (7) makes governor spring (11) circular arc place contact with inducer (6) end face, thereby produces frictional force, and formed moment of this power and inducer (6) torque contend with.Regulation spring (8) is housed simultaneously in order to tensioning regulating wheel (7), makes regulating wheel (7) not change the frictional force size because of fan vibration produces displacement.Need only turn regulating wheel (7) a little, inducer (6) just can reach the requirement of stablizing speed change, and because of Regulation spring (8) presses inducer (6) end face its axial runout that is produced when rotating is reduced to some extent.
The utility model only need increase Regulation spring (8) on the basis of existing technology and governor spring (11) just can reach existing effect of rotating with minitype motor driving inducer constant speed.Simultaneously, these arrangements for speed regulation also have simple in structure, cost is low, easy to operate, speed governing stable and can realize the advantage of stepless speed regulation.
Fig. 1 is the utility model speed governing status architecture plan view;
Fig. 2 is an A-A sectional view shown in Figure 1.
Below by embodiment the utility model is further elaborated.
Referring to shown in Figure 1, with a screw, spring washer wind-guiding wheel shaft (4) is fastened on the preceding casing (3) of fan, on the wind-guiding wheel shaft, load onto plastic washer (2), Steel Washer (1), inducer (6), plastics lock washer (12), Steel Washer (5) successively, be inserted in Regulation spring (8).Referring to shown in Figure 2, with self tapping screw (13) eccentric projection (7-1) groove that governor spring (11) is pressed in the regulating wheel (7) to be cheated, present embodiment is only chosen 1 eccentric projection (7-1).The surface is printed on the adjusting diagram (10) of regulating symbol to be attached on regulating wheel (7) exterior edge face.Then regulating wheel (7) is screwed in wind-guiding wheel shaft (4) and fastening screw trip bolt (9), promptly become these arrangements for speed regulation.Shown in the adjusting diagram, clockwise turn regulating wheel (7), inducer (6) rotating speed is slack-off gradually until stopping operating, and at this moment, regulating wheel (7) interior edge face contacts with packing ring (5) end face and presses packing ring (5), again can not turn.Counterclockwise turn regulating wheel (7), inducer (6) begin from a slow speed to quick rotation from state of rest again, and inducer (6) stops turn regulating wheel (7) when reaching maximum (top) speed.Because of there being Regulation spring (8) to press regulating wheel (7), make its not because of fan vibration to some extent displacement change the frictional force size voluntarily.Screw (9) is spacing just can not to come off out yet because of having during as counterclockwise continuation turn regulating wheel (7).
Present embodiment is contained on the 300MM rotary blade fan, and Regulation spring (8) line directly is φ 0.9mm, and pitch diameter is φ 7mm, and governor spring (11) line directly is φ 0.6mm, and above-mentioned two kinds of spring materials are all selected spring steel for use.The eccentric projection off-centre of regulating wheel (7) inner chamber is 24mm.
Claims (2)
1, a kind of rotary blade fan inducer arrangements for speed regulation, its structure is to load onto inducer (6), lock washer (12), Regulation spring (8), regulating wheel (7) on wind-guiding wheel shaft (4) successively, fastening with screw (9), it is characterized in that regulating wheel (7) inner chamber has 1～4 eccentric projection (7-1) uniform on circumference, be fixed with governor spring (11) on each eccentric projection (7-1), there is a packing ring (5) lock washer (12) back, is with 1 Regulation spring (8) along wind-guiding wheel shaft (4) between regulating wheel (7) and packing ring (5).
2, rotary blade fan inducer arrangements for speed regulation according to claim 1 is characterized in that described governor spring (11) shape is that an end is a right angle type, and the other end is a circular arc, and its material is Stainless Steel Wire or Spring Steel Wire or phosphorus bronze sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223566 CN2083650U (en) | 1990-11-10 | 1990-11-10 | Fan air guiding wheel speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90223566 CN2083650U (en) | 1990-11-10 | 1990-11-10 | Fan air guiding wheel speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2083650U true CN2083650U (en) | 1991-08-28 |
Family
ID=4901299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90223566 Granted CN2083650U (en) | 1990-11-10 | 1990-11-10 | Fan air guiding wheel speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2083650U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228931A (en) * | 2010-11-08 | 2013-07-31 | 陈志� | Mounting structure for the dissipating wind surface in box electric fans |
| CN108237840A (en) * | 2016-12-23 | 2018-07-03 | 纬创资通股份有限公司 | Rotation speed adjusting module, rotating device and rotation speed adjusting method |
| CN112628193A (en) * | 2020-12-11 | 2021-04-09 | 江苏大学 | Pump and inducer with adjustable speed of belt wheel hoop thereof |
-
1990
- 1990-11-10 CN CN 90223566 patent/CN2083650U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228931A (en) * | 2010-11-08 | 2013-07-31 | 陈志� | Mounting structure for the dissipating wind surface in box electric fans |
| CN103228931B (en) * | 2010-11-08 | 2016-04-20 | 陈志� | For the mounting structure in the loose wind face in box fan |
| CN108237840A (en) * | 2016-12-23 | 2018-07-03 | 纬创资通股份有限公司 | Rotation speed adjusting module, rotating device and rotation speed adjusting method |
| CN112628193A (en) * | 2020-12-11 | 2021-04-09 | 江苏大学 | Pump and inducer with adjustable speed of belt wheel hoop thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |