CN202921241U - Variable-diameter stirrer - Google Patents
Variable-diameter stirrer Download PDFInfo
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- CN202921241U CN202921241U CN 201220657924 CN201220657924U CN202921241U CN 202921241 U CN202921241 U CN 202921241U CN 201220657924 CN201220657924 CN 201220657924 CN 201220657924 U CN201220657924 U CN 201220657924U CN 202921241 U CN202921241 U CN 202921241U
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- fixed blade
- agitator
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Abstract
The utility model relates to a variable-diameter stirrer. The variable-diameter stirrer comprises a hub, a fixed blade, sliding blades and elastic elements, wherein the hub is connected with a stirring shaft; the fixed blade is fixedly connected with the hub by welding or bolts and other manners; the sliding blades are partially sleeved with the fixed blade and can slide along the fixed blade; one ends of the elastic elements are fixed on the fixed blade or hub, and the other ends of the elastic elements are fixed on the sliding blades; and the sliding blades are partially sleeved with the fixed blade all the way due to restriction of the elastic elements. When the stirrer operates, the sliding blades can overcome the pull force of the elastic elements under the action of centrifugal force to slide outwards along the fixed blade, so that the diameter of the stirrer increases. When the stirrer stops, the sliding blades slide inwards under the pull force of the elastic elements, and the diameter of the stirrer decreases and recovers, thus the stirring resistance can be reduced when the stirrer is restarted, and the starting power can be reduced. The variable-diameter stirrer is suitable for stirring a solid-phase solid and liquid mixture which easily settles and coagulates and materials of which the viscosity decreases continuously along with stirring.
Description
Technical field
The utility model relates to the agitator in a kind of chemical industry equipment field.
Background technology
At present, according to different application scenarios, various dissimilar agitators are arranged.But existing agitator is the agitator of fixed diameter mostly, and stirrer diameter is immutable in whipping process.Existing fixed diameter agitator can satisfy the needs that most of industrial production material stirs, but has open defect at some occasion fixed diameter agitator.The solid-liquid mix and blend occasion that even hardens in the easy deposition of solid phase, have a power failure or special process need to need again to start after stopping stirring a period of time when stirring when running into, because of solid precipitation or harden, the fixed diameter agitator probably causes stirring resistance and increases and can't start because being buried by solid phase, even burns stirring motor.Make it to start smoothly when being buried by solid phase if reduce the diameter of agitator, can reduce not reach because of stirrer diameter stirring intensity or the effect of technological requirement.The material that some colloid material or other viscosity are higher in addition is constantly liquid feeding dilution in whipping process, and the viscosity of material can reduce in whipping process gradually, the agitator of certain diameter, and its required power of agitator reduces along with the reduction of material viscosity.The agitator of fixed diameter, if it just satisfies stirring intensity after material viscosity reduces, power is fully used, high because of material viscosity when stirring startup, overloading easily occurs and even can't start in agitating device; If change stirrer diameter little or be equipped with the large motor of power headroom, agitator does not reach mixing effect or the motor operational efficiency is low.
Summary of the invention
The purpose of this utility model is to provide a kind of agitator of variable-diameter, overcomes former agitator and can't change the shortcoming that the stirring diameter satisfies mixing effect in whipping process.
A kind of agitator of variable-diameter is characterized in that: comprise the wheel hub, fixed blade, sliding blade and the flexible member that are connected with shaft, fixed blade adopts welding or bolt connecting mode to be fixedly connected with wheel hub; Sliding blade is together with fixed blade partly is linked in, and sliding blade can slide along fixed blade; Flexible member one end is fixed on fixed blade or on wheel hub, the other end is fixed on sliding blade; Sliding blade remains part and fixed blade fit because of the constraint of flexible member.When sliding blade was linked in the fixed blade outside, this moment, sliding blade was provided with the fit inner chamber, and flexible member is arranged on the outside of fixed blade; When sliding blade was linked in the inside of fixed blade, flexible member was arranged in the inner chamber of fixed blade.
Preferably, wheel hub is monoblock type or dissection type steel wheel hub, and the multi-disc fixed blade is weldingly fixed on wheel hub, can have certain inclination angle.Two groups or three groups blades of agitator operated by rotary motion, a fixed blade and a sliding blade are one group, and mixing arm arranges symmetrically with respect to the wheel hub center, and blade tilt is 30 degree or 45 degree.
Preferably, flexible member is the steel extension spring, and every group of blade is symmetrical arranged two springs.The spring rate centrifugal force that sliding blade can produce according to the maximum slippage of sliding blade with when rotating carries out calculative determination.When agitator is in the minimum diameter state, spring is in relaxed state.
Preferably; the gap of sliding blade and fixed blade fit part is less than 1mm; sliding blade is provided with the flexible rings such as felt collar, cushion rubber by the hub end end face, prevents that effectively solid particle or gluey material from entering in the gap of fixed blade and sliding blade fit part, affects the normal slip of sliding blade.
Preferably, when agitator was in the diameter maximum rating, the length of sliding blade and fixed blade fit part was not less than hub diameter, the blade stiffness when stirring with assurance.
Variable-diameter agitator of the present utility model is after startup; agitator increases stirrer diameter automatically by the centrifugal force of himself; after shutting down, agitator automatically returns to the minimum diameter state by the pulling force of flexible member; need not the power set of additional adjustment diameter; need not in the stirrer diameter adjustment process to shut down, need not manually-operated.Useful technique effect of the present utility model is: agitator can change diameter in whipping process, and in the solid-liquid mix and blend occasion that solid phase easily deposits or hardens, agitator starts with less diameter state, has effectively reduced the stirring resistance, has reduced starting power; After solid phase dispersion, the sliding blade of agitator outwards slides under the effect of centrifugal force, and stirrer diameter increases, and has effectively strengthened stirring intensity, has strengthened mixing effect.In the occasion that material viscosity reduces with stirring action, the variable-diameter agitator has same beneficial effect.The variable-diameter agitator can adapt to that solid phase easily deposits or the intermittent stirring operation of the material that the solidliquid mixture that hardens and viscosity reduce with stirring action, can satisfy some and require intermittent special process requirement of stirring.
Description of drawings
Fig. 1 is variable-diameter agitator structure schematic diagram of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 another example structure schematic diagram of the present utility model.
The specific embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:
A kind of agitator of variable-diameter comprises the wheel hub 1, fixed blade 2, sliding blade 3 and the flexible member 4 that are connected with shaft, and fixed blade 2 mode with bolts is fixedly connected with wheel hub 1; Sliding blade 3 is together with fixed blade 2 parts are linked in, and sliding blade 3 can slide along fixed blade 2; Flexible member 4 one ends are fixed on fixed blade 2 or on wheel hub 1, the other end is fixed on sliding blade 3; Sliding blade 2 remains part and fixed blade 2 fits because of the constraint of flexible member 4.
As shown in Figure 2, the variable-diameter agitator of this embodiment is used for the easily stirring of the crystallization reaction still of deposition of crystal.Do not need high-intensity stirring in crystallization process, but need material in reactor all fully to be stirred, do not stay the dead angle.After stirring stopped, crystal easily deposition buried agitator.For this reason, agitator adopts two groups of blades, and blade is hollow cylinder.Fixed blade 2 is connected with wheel hub 1 by bolt, and sliding blade 3 is linked in fixed blade 2 the insides, and sliding blade 3 is connected with wheel hub 1 by flexible member 4.The outer face of fixed blade 2 is provided with silica gel ring 5, is used for preventing that crystal from entering the gap of fixed blade 2 and sliding blade 3.
Before agitator started, sliding blade 3 major parts were linked in fixed blade 2 the insides, and stirrer diameter is less, and required power of agitator is also little, though may be buried by crystal by agitator this moment, agitator still can rotate smoothly.After crystal was because of dispersed with stirring, sliding blade 3 was because of the effect of centrifugal force, and the pulling force that overcomes flexible member 4 outwards extends, and stirrer diameter increases, and meets the requirements of mixing effect.After stirring stopped, sliding blade 3 bounced back under the pulling force of flexible member 4, and agitator returns to the minimum diameter state, was conducive to start next time.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; make without departing from the concept of the premise utility some alternative or obvious modification that are equal to; and performance or purposes identical, should be considered as belonging to the protection domain that claims that the utility model submits to are determined.
Claims (5)
1. the agitator of a variable-diameter, it is characterized in that, comprise the wheel hub (1), fixed blade (2), sliding blade (3) and the flexible member (4) that are connected with shaft, fixed blade (2) adopts welding or bolt connecting mode to be fixedly connected with wheel hub (1); Sliding blade (3) is together with fixed blade (2) part is linked in, and sliding blade (3) can slide along fixed blade (2); Flexible member (4) one ends are fixed on fixed blade (2) upward or on wheel hub (1), the other end is fixed on sliding blade (3); Sliding blade (3) remains part and fixed blade (2) fit because of the constraint of flexible member (4).
2. the agitator of variable-diameter according to claim 1, it is characterized in that, wheel hub (1) is monoblock type or dissection type steel wheel hub, agitator arranges two groups or three groups of blades, a fixed blade (2) and a sliding blade (3) are one group, mixing arm arranges symmetrically with respect to wheel hub (1) center, and blade tilt is 30 degree or 45 degree.
3. the agitator of variable-diameter according to claim 2, it is characterized in that: flexible member (4) is the steel extension spring, and every group of blade is symmetrical arranged two springs.
4. the agitator of variable-diameter according to claim 1 and 2 is characterized in that: the gap of fixed blade (2) and sliding blade (3) fit part is less than 1mm, sliding blade (3) be provided with flexible rings (5) by the hub end end.
5. the agitator of variable-diameter according to claim 1 and 2 is characterized in that: when agitator was in the diameter maximum rating, sliding blade (3) was not less than wheel hub (1) diameter with the length of fixed blade (2) fit part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657924 CN202921241U (en) | 2012-12-04 | 2012-12-04 | Variable-diameter stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657924 CN202921241U (en) | 2012-12-04 | 2012-12-04 | Variable-diameter stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202921241U true CN202921241U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220657924 Expired - Fee Related CN202921241U (en) | 2012-12-04 | 2012-12-04 | Variable-diameter stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202921241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989358A (en) * | 2012-12-04 | 2013-03-27 | 江西稀有稀土金属钨业集团有限公司 | Agitator with variable diameter |
| CN113017421A (en) * | 2019-12-09 | 2021-06-25 | 莱克电气绿能科技(苏州)有限公司 | Powder box and automatic beverage dispenser |
-
2012
- 2012-12-04 CN CN 201220657924 patent/CN202921241U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989358A (en) * | 2012-12-04 | 2013-03-27 | 江西稀有稀土金属钨业集团有限公司 | Agitator with variable diameter |
| CN113017421A (en) * | 2019-12-09 | 2021-06-25 | 莱克电气绿能科技(苏州)有限公司 | Powder box and automatic beverage dispenser |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20171204 |