CN203584870U - Split impeller shaft for airlocks - Google Patents
Split impeller shaft for airlocks Download PDFInfo
- Publication number
- CN203584870U CN203584870U CN201320711393.8U CN201320711393U CN203584870U CN 203584870 U CN203584870 U CN 203584870U CN 201320711393 U CN201320711393 U CN 201320711393U CN 203584870 U CN203584870 U CN 203584870U
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- CN
- China
- Prior art keywords
- impeller
- shaft
- impeller shaft
- center hole
- split type
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Abstract
The utility model discloses a split impeller shaft for airlocks. The split impeller shaft includes two segments imbedded at two ends of a central hole of an impeller by casting, respectively. The part, inside the central hole of the impeller, of the impeller shaft is provided with an axial positioning journal; the segment inside the central hole of the impeller, of the impeller shaft is also provided with a radial positioning plane. Two ends of the axial positioning journal and the outside of the impeller shaft form tow positioning shaft shoulders. Both the positioning shaft shoulders are arranged inside the central hole of the impeller. The radial positioning plane 4 is arranged on one side of the axial positioning journal 3, close to the inside of the central hole of the impeller, is arranged on the segment, close to the end of the impeller, and is parallel to the axis of the impeller shaft 2. The two short shafts are imbedded at two ends of the central hole of the impeller by casting; the impeller shaft and the impeller are axially and radially positioned by the axial positioning journal and the radial positioning plane, respectively; steel is saved, machining is facilitated, and service effect is good.
Description
Technical field
The utility model relates to the Impeller airlock impeller shaft in wind-force conveying and dust removal by ventilation equipment, refers to especially a kind of split type impeller shaft for wind closed device, belongs to wind-force and carries and dust removal by ventilation equipment preparing technical field.
Background technique
Impeller airlock is the capital equipment of dusting apparatus ash discharge, air-supply and miscellaneous equipment feed, be applicable to granular material and granulated material, normally by the impeller of rotor with several pieces blades, housing, the compositions such as Sealing, using scope is extensive, is the industrial department extensive uses such as environmental protection, metallurgy, chemical industry, grain, food.The processing technology requirement of vane rotor, vane rotor is when rotating, between rotor outer circle and casing endoporus and the gap of rotor end-face and end cap plane is the smaller the better, the bearing position at General Requirements vane rotor two ends and the coaxality of blade cylindrical are in 0.025mm, and the end face run-out at two ends is in 0.03mm.Therefore, both required the machining accuracy of impeller high, meanwhile, also require between impeller and impeller shaft to be connected precision high.
The normally isodiametric impeller shaft of traditional impeller shaft or splined shaft.
Between isodiametric impeller shaft and impeller, adopt welding procedure to be linked to be an integral body or adopt the mode of interference fit to be inlaid in the reserved center hole of the impeller of iron casting, forming impeller assembly.Adopt the impeller assembly of welding procedure moulding, because of the effect of welding stress and Machining stress, between impeller shaft and impeller, can produce distortion.The form and position tolerance producing for reducing impeller distortion, conventionally adopt special tooling to calibrate, even like this, because welding stress in impeller shaft and Machining stress still exist, in using process, still can cause deforming between impeller shaft and impeller, the requirement to dimensional accuracy in the time of can not meeting impeller operation, cause wind closed device air-tightness variation, and then affect quality of product and discharging performance.Adopt the impeller assembly of interference fit moulding, due to steel impeller shaft and cast iron impeller employing interference fit, required precision is high, and tension can make cast iron impeller cracking; Cross pine, impeller shaft can skid, and causes quality unstable, and rate of good product is low.
Adopt the impeller assembly of splined shaft assembling, due to key or spline is realized radially and during axially locating, its radial dimension is conventionally reserved larger, when vane rotor high speed operation, is difficult to equally meet the requirement of vane rotor end face run-out dimensional accuracy.
Model utility content
The purpose of this utility model is to overcome the deficiency of prior art and the split type impeller shaft that provides a kind of combination wind closed device impeller casting to adopt, by casting technique, impeller shaft is combined with impeller firmly, the impeller assembly dimensional accuracy of preparation is high, in the time of meeting vane rotor high speed operation, the requirement to impeller shaft end surface jitter dimensional accuracy.
The utility model adopts following technological scheme to realize: a kind of split type impeller shaft for wind closed device, and described impeller shaft 2 is two sections, castingin is in the position at impeller 1 center hole two ends respectively; Described impeller shaft 2 be positioned at impeller center hole with part be provided with axially locating axle journal 3, and offer radial location plane 4 on the shaft part of impeller center hole inside.
In this real model utility, the external diameter of described axially locating axle journal 3 two ends and impeller shaft 2 forms two location shaft shoulders, and described two location shaft shoulders are all positioned at the center hole of described impeller 1.
Preferably, the height of the described location shaft shoulder is 3-8mm.
In the utility model, described radial location plane 4 is positioned at described axially locating axle journal 3 near a side of impeller center hole inside, and the axis that is parallel to described impeller shaft 2 is arranged on the shaft part near impeller shaft end.
Further, described radial location plane 4 is two, parallel and be arranged symmetrically with the axis of impeller shaft.
Preferably, the perpendicular distance between two radial location planes 4 equals the diameter of axially locating axle journal 3.
The utility model adopts two sections of minor axises difference cast settings at the two ends of casting impeller center hole, by axially locating axle journal and radial location plane respectively between impeller shaft and impeller axially and radial location, save steel and easy to process, using effect is good.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the side view of impeller and impeller shaft.
Fig. 2 is the plan view of impeller and impeller shaft.(left end impeller shaft broken section)
Fig. 3 is the plan view of one section of impeller shaft wherein.
Fig. 4 is the right elevation of impeller shaft in Fig. 3.
Number in the figure: 1-impeller, 2-impeller shaft, 3-axially locating axle journal, 4-radial location plane.
Embodiment
Embodiment
Referring to Fig. 1 and Fig. 2, the vane rotor of wind closed device comprises impeller shaft 2 and is sleeved on the impeller 1 on impeller shaft, and in the present embodiment, impeller shaft 2 is two sections, and castingin is in the position at impeller 1 center hole two ends respectively; Impeller shaft 2 be positioned at impeller center hole with part be provided with axially locating axle journal 3, and offer radial location plane 4 on the shaft part of impeller center hole inside.Concrete combination is referring to Fig. 3 and Fig. 4, the external diameter of axially locating axle journal 3 two ends and impeller shaft 2 forms two location shaft shoulders, two location shaft shoulders are all positioned at the center hole of impeller 1, at impeller, build in the process of moulding, impeller endoporus forms the axially locating that the step mating with axially locating axle journal 3 is realized impeller shaft 2 and impeller 1, the external diameter of the impeller shaft in diagram is Φ 50mm, and the diameter of the location shaft shoulder is Φ 40mm, and the height of the location shaft shoulder is 5mm.
Axially locating axle journal 3 of the present utility model can be processed by turning, and radial location plane 4 can be passed through Milling Process, adopts the impeller shaft of two sections of minor axises aspect processing, to compare a major axis, has not only saved steel, has also simplified processing technology simultaneously.
Claims (6)
1. for a split type impeller shaft for wind closed device, it is characterized in that: described impeller shaft (2) is two sections, castingin is in the position at impeller (1) center hole two ends respectively; Described impeller shaft (2) be positioned at impeller center hole with part be provided with axially locating axle journal (3), and on the shaft part of impeller center hole inside, offer radial location plane (4).
2. a kind of split type impeller shaft for wind closed device according to claim 1, it is characterized in that: the external diameter of described axially locating axle journal (3) two ends and impeller shaft (2) forms two location shaft shoulders, described two location shaft shoulders are all positioned at the center hole of described impeller (1).
3. a kind of split type impeller shaft for wind closed device according to claim 2, is characterized in that: the height of the described location shaft shoulder is 3-8mm.
4. according to a kind of split type impeller shaft for wind closed device described in any one in claim 1-3, it is characterized in that: described radial location plane (4) is positioned at described axially locating axle journal (3) near a side of impeller center hole inside, and the axis that is parallel to described impeller shaft (2) is arranged on the shaft part near impeller shaft end.
5. a kind of split type impeller shaft for wind closed device according to claim 4, is characterized in that: described radial location plane (4) is two, parallel and be arranged symmetrically with the axis of impeller shaft.
6. a kind of split type impeller shaft for wind closed device according to claim 5, is characterized in that: the perpendicular distance between two radial location planes (4) equals the diameter of axially locating axle journal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711393.8U CN203584870U (en) | 2013-11-12 | 2013-11-12 | Split impeller shaft for airlocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711393.8U CN203584870U (en) | 2013-11-12 | 2013-11-12 | Split impeller shaft for airlocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584870U true CN203584870U (en) | 2014-05-07 |
Family
ID=50582801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320711393.8U Expired - Fee Related CN203584870U (en) | 2013-11-12 | 2013-11-12 | Split impeller shaft for airlocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
| CN109158835A (en) * | 2018-09-12 | 2019-01-08 | 福建成达鼓风机有限公司 | The impeller production process of roots blower |
-
2013
- 2013-11-12 CN CN201320711393.8U patent/CN203584870U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677469A (en) * | 2017-10-30 | 2018-02-09 | 南京磁谷科技有限公司 | It is used for the conversion sleeve of impeller test in a kind of overspeed test bench |
| CN109158835A (en) * | 2018-09-12 | 2019-01-08 | 福建成达鼓风机有限公司 | The impeller production process of roots blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20161112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |