CN104533831A - Anticorrosion transmission device for shaft end of high-speed blower impeller of vacuum system - Google Patents
Anticorrosion transmission device for shaft end of high-speed blower impeller of vacuum system Download PDFInfo
- Publication number
- CN104533831A CN104533831A CN201410671922.5A CN201410671922A CN104533831A CN 104533831 A CN104533831 A CN 104533831A CN 201410671922 A CN201410671922 A CN 201410671922A CN 104533831 A CN104533831 A CN 104533831A
- Authority
- CN
- China
- Prior art keywords
- impeller
- locking nut
- speed shaft
- vacuum system
- screw
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/289—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps having provision against erosion or for dust-separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an anticorrosion transmission device for a shaft end of a high-speed blower impeller of a vacuum system. The device comprises a fairing, a hexagon socket head cap screw, a gasket, a backing ring, a locking nut, a tensioning screw, an impeller, a round pin and a high-speed shaft. The device is characterized in that the impeller is axially compressed and fixed on the high-speed shaft through the tensioning screen and the locking nut and is in circumferential positioning and torque transmission to the high-speed shaft through the round pin; the backing ring prepared from polytetrafluoroethylene is arranged between the fairing and the left end surface of the impeller and is mounted and fixed on the left end surface of the impeller through the hexagon socket head cap screw and the gasket prepared from polytetrafluoroethylene; the locking nut is crewed in the direction opposite to the rotating direction of the impeller; when the high-speed shaft rotates, the locking nut is screwed under the inertia effect. The anticorrosion transmission device for the shaft end of the high-speed blower impeller of the vacuum system is simple in structure, low in processing cost, convenient to dismount and mount, good in anticorrosion effect, practical and effective.
Description
Technical field
The present invention relates to papermaking and chemical technology field, be specially adapted to the occasion of carrying saturated air in paper industry vacuum system.
Background technique
Cantilever type high rate centrifugal blower adopts ternary flow technology design, has the advantages such as efficiency is high, volume is little, steady working condition wide ranges, substitutes water ring pump gradually, have wide popularizing prospect in paper industry vacuum system.The speed of this kind of impeller generally can reach 20000r/min, the highlyest even can reach 40000r/min, its fed sheet of a media be saturated air and do not filter totally, easily bonding paper pulp, therefore the reliable transmission of quick runner rotor should be considered, when considering that the axle head of impeller is anticorrosion and overhaul again, the being dismounted for multiple times problem of impeller, guarantees the running stably in a long term of quick runner rotor.
Traditional impeller shaft end kind of drive has the modes such as the connection of key joint, interference fit, delthyrium connection, end-tooth connection.The impeller of key joint and main shaft, although be easy to machine shaping and low cost, but easily produce stress to concentrate, usually adopt suitable interference fit, particularly when high rotating speed, consider the impact of the factors such as the Speed of Rotation Loosening of impeller, matching allowance between impeller and main shaft is large, and hot jacket method must be adopted to assemble, very difficult when causing secondary to dismantle, or cannot dismantle, be not easy to periodical repair and the maintenance of vane rotor; at all The impeller of interference fit connection and main shaft, must coordinate special ultrahigh-pressure hydraulic device to complete mounting or dismounting; The impeller of delthyrium connection and main shaft, after long term frequent start and stop blower fan, leg-of-mutton axle is easy to impeller delthyrium and produces cementing, is not easy to secondary mounting or dismounting; The impeller of end-tooth connection and main shaft, need the design theory of corresponding end-tooth, and the processing cost of end-tooth is high simultaneously, the domestic end-tooth design theory still not forming maturation.
Summary of the invention
The present invention is intended to overcome above-mentioned defect, and object is to provide that a kind of structure is simple, processing cost is low, the anticorrosion transmission device of axle head of the vacuum system impeller of high-speed fan of easy accessibility, favorable anti-corrosion effect, practicability and effectiveness.
For achieving the above object, the technical solution used in the present invention is made up of fair water cone, hexagon socket cap head screw, packing ring, gasket ring, locking nut, stretching screw, impeller, straight pin, high speed shaft; It is characterized in that impeller is fixed on high speed shaft by stretching screw and locking nut axial compression, and realize locating and moment of torsion transmission with the circumference of high speed shaft by straight pin; Be provided with the gasket ring of teflon material between fair water cone and impeller left side, and be mounted on impeller left side by the packing ring of hexagon socket cap head screw and teflon material; Locking nut screwing direction is contrary with impeller rotation direction, and when high speed shaft rotates, locking nut can revolve tighter and tighter due to effect of inertia.Stretching screw left end is provided with hexagonal boss, and its two ends, left and right are all processed with outside thread, and stretching screw is threaded with high speed shaft by right-hand member screw thread, are threaded with locking nut by left end screw thread, and its tightening direction is all contrary with impeller rotation direction.
Accompanying drawing explanation
Fig. 1 is the anticorrosion transmission structures schematic diagram of axle head of a kind of vacuum system of the present invention impeller of high-speed fan;
Fig. 2 is the axle head anticorrosion transmission device dismounting stereogram of a kind of vacuum system of the present invention impeller of high-speed fan;
In the drawings: 1, fair water cone; 2, stretching screw; 3, impeller; 4, straight pin; 5, high speed shaft; 6, locking nut; 7, packing ring; 8, gasket ring; 9, hexagon socket cap head screw; 10, hexagonal boss; 11, blind hole.
Embodiment
Its structure of the anticorrosion transmission device of axle head of a kind of vacuum system of the present invention impeller of high-speed fan is made up of fair water cone (1), hexagon socket cap head screw (9), packing ring (7), gasket ring (8), locking nut (6), stretching screw (2), impeller (3), straight pin (4), high speed shaft (5) parts.Wherein, impeller (3) is semi-open type three-dimensional flow impeller, formed by the overall milling of high-strength stainless steel, it turns scooter 40000r/min, impeller (3) is fixed on high speed shaft (5) by stretching screw (2) and locking nut (6) axial compression, and realizes locating and moment of torsion transmission with the circumference of high speed shaft (5) by straight pin (4); The gasket ring (8) of teflon material is provided with between fair water cone (1) and impeller (3) left side, and be mounted on impeller (3) left side by the packing ring (7) of hexagon socket cap head screw (9) and teflon material, completely cut off the inside that external corrosive gas enters transmission device; Locking nut (6) is carbon steel material, and its tightening direction is contrary with impeller (3) rotation direction, and when high speed shaft (5) rotates, locking nut (6) can revolve tighter and tighter due to effect of inertia; Stretching screw (2) is alloyed steel material, stretching screw (2) left end is provided with hexagonal boss (10), be convenient to it tighten and dismantle, its two ends, left and right are all processed with outside thread, stretching screw (2) is threaded with high speed shaft (5) by right-hand member screw thread, be threaded with locking nut (6) by left end screw thread, and its tightening direction is all contrary with impeller (3) rotation direction.The present invention adopts the mode of scyewed joint and seam location that locking nut (6), stretching screw (2), impeller (3), high speed shaft (5) are connected, realize the axially locating of impeller (3), and locate and moment of torsion transmission in the circumference that circumferencial direction adopts 4 cylindrical pin with internal threads (4) to realize impeller (3) and high speed shaft (5).Straight pin (4) is cylindrical pin with internal thread, does not damage its external cylindrical surface, can realize being dismounted for multiple times when being convenient to dismounting.Locking nut (6), circumferential circumference uniform distribution 4 blind holes (11), is convenient to tightening and dismantling of locking nut (6).The each constituent elements structure of this invention is simple, and each constituent elements except impeller (3) is common rotary structure, can process, low processing cost on engine lathe and drilling machine.
The position that impeller of the present invention (3), fair water cone (1), hexagon socket cap head screw (9) etc. contact with Korrosionsmedium all adopts stainless steel, impeller (3) contacts the gasket ring (8) that end face is provided with teflon material with fair water cone (1), and the hexagon socket cap head screw of locking (9) adds the packing ring (7) of teflon material, completely cut off external corrosive gas contact stretching screw (2), locking nut (6), effectively serve antiseptic effect.Stretching screw (2) and locking nut (6) with the use of, the axially locating of impeller (3), locking can be realized, impeller (3) right side forms friction torque, transmitting portions moment of torsion with high speed shaft (5) annulus end face under the effect of axial tightening power.
Therefore, the present invention is that a kind of structure is simple, processing cost is low, the anticorrosion transmission device of axle head of the vacuum system impeller of high-speed fan of easy accessibility, favorable anti-corrosion effect, practicability and effectiveness.
Claims (3)
1. the anticorrosion transmission device of the axle head of vacuum system impeller of high-speed fan, its structure is made up of fair water cone (1), hexagon socket cap head screw (9), packing ring (7), gasket ring (8), locking nut (6), stretching screw (2), impeller (3), straight pin (4), high speed shaft (5); It is characterized in that impeller (3) is fixed on high speed shaft (5) by stretching screw (2) and locking nut (6) axial compression, and realize locating and moment of torsion transmission with the circumference of high speed shaft (5) by straight pin (4); Be provided with the gasket ring (8) of teflon material between fair water cone (1) and impeller (3) left side, and be mounted on impeller (3) left side by the packing ring (7) of hexagon socket cap head screw (9) and teflon material; Locking nut (6) tightening direction is contrary with impeller (3) rotation direction, and when high speed shaft (5) rotates, locking nut (6) can revolve tighter and tighter due to effect of inertia.
2. the anticorrosion transmission device of axle head of a kind of vacuum system impeller of high-speed fan according to claim 1, it is characterized in that described stretching screw (2) left end is provided with hexagonal boss (10), its two ends, left and right are all processed with outside thread, stretching screw (2) is threaded with high speed shaft (5) by right-hand member screw thread, be threaded with locking nut (6) by left end screw thread, and its tightening direction is all contrary with impeller (3) rotation direction.
3. according to the anticorrosion transmission device of axle head of a kind of vacuum system impeller of high-speed fan described in claim 1, it is characterized in that described locking nut (6) is carbon steel material, locking nut (6) is circumferential circumference uniform distribution 4 blind holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671922.5A CN104533831A (en) | 2014-11-21 | 2014-11-21 | Anticorrosion transmission device for shaft end of high-speed blower impeller of vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671922.5A CN104533831A (en) | 2014-11-21 | 2014-11-21 | Anticorrosion transmission device for shaft end of high-speed blower impeller of vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533831A true CN104533831A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671922.5A Pending CN104533831A (en) | 2014-11-21 | 2014-11-21 | Anticorrosion transmission device for shaft end of high-speed blower impeller of vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533831A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929975A (en) * | 2015-06-30 | 2015-09-23 | 黑龙江凯普瑞机械设备有限公司 | Centrifugal fan and connection device used to connect impeller thereof with rotating shaft |
| CN105666144A (en) * | 2016-03-24 | 2016-06-15 | 中国北方发动机研究所(天津) | Composite supercharger turbine rotating shaft and machining assembly method thereof |
| CN106678075A (en) * | 2017-02-27 | 2017-05-17 | 南通大通宝富风机有限公司 | Connecting structure for impeller and high-speed shaft of steam compressor |
| CN107355419A (en) * | 2017-06-27 | 2017-11-17 | 北京航空航天大学 | A kind of high-speed magnetic levitation draught fan impeller locking mechanism |
| CN109382554A (en) * | 2018-10-10 | 2019-02-26 | 广州中汇达科技有限公司 | A kind of high-precision automobile crane thrust surface deburring machine |
| CN110242611A (en) * | 2019-05-06 | 2019-09-17 | 湖南天尚科技有限公司 | A kind of easy-to-mount water pump blade |
-
2014
- 2014-11-21 CN CN201410671922.5A patent/CN104533831A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929975A (en) * | 2015-06-30 | 2015-09-23 | 黑龙江凯普瑞机械设备有限公司 | Centrifugal fan and connection device used to connect impeller thereof with rotating shaft |
| CN105666144A (en) * | 2016-03-24 | 2016-06-15 | 中国北方发动机研究所(天津) | Composite supercharger turbine rotating shaft and machining assembly method thereof |
| CN106678075A (en) * | 2017-02-27 | 2017-05-17 | 南通大通宝富风机有限公司 | Connecting structure for impeller and high-speed shaft of steam compressor |
| CN107355419A (en) * | 2017-06-27 | 2017-11-17 | 北京航空航天大学 | A kind of high-speed magnetic levitation draught fan impeller locking mechanism |
| CN109382554A (en) * | 2018-10-10 | 2019-02-26 | 广州中汇达科技有限公司 | A kind of high-precision automobile crane thrust surface deburring machine |
| CN110242611A (en) * | 2019-05-06 | 2019-09-17 | 湖南天尚科技有限公司 | A kind of easy-to-mount water pump blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |