CN102335961A - Preparation method of agitating vane with non-equiangular logarithm helical curve - Google Patents
Preparation method of agitating vane with non-equiangular logarithm helical curve Download PDFInfo
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- CN102335961A CN102335961A CN2011102882065A CN201110288206A CN102335961A CN 102335961 A CN102335961 A CN 102335961A CN 2011102882065 A CN2011102882065 A CN 2011102882065A CN 201110288206 A CN201110288206 A CN 201110288206A CN 102335961 A CN102335961 A CN 102335961A
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- Prior art keywords
- agitating vane
- stirring vane
- preparation
- helical curve
- equiangular
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Abstract
The invention provides a preparation method of an agitating vane with a non-equiangular logarithm helical curve. The preparation method comprises the following steps of: getting points according to a helical curve equation; discretizing an agitating vane and marking lines on the wall of an agitating cylinder at the same time, wherein the agitating vane with the helical curve utilizes a sectionalized way and each section is pressed out by using a mould; and then welding all the sections to form a continuous agitating vane according to track lines on the cylinder wall to obtain the agitating vane with the non-equiangular logarithm helical curve. The technical effects of the preparation method, provided by the invention, are as follows: the agitating vane with the non-equiangular logarithm helical curve has more excellent fitting performance and jointing fairness so that the agitating vane also has more excellent mechanical properties.
Description
Technical field
The present invention relates to a kind of preparation method of stirring vane, relate in particular to a kind of preparation method of non-isogonism log spiral stirring vane.
Background technology
Concrete has been applied to each corner in the world as the symbol that realizes the modernization of industry.Concrete is the most important construction material of modern society, and its construction quality is related to national economy, and meaning is very great.A key factor that influences the concrete construction quality is exactly the mixing quality before building.Concrete mixer truck is as unique instrument that rationally transports commerical ready-mixed concrete in the city, and it both can also can be used as concrete mixing plant as concrete transport vehicle, had irreplaceable effect.
Mixing Blades of Concrete Truck Mixer is the critical component of concrete mixer truck stirring system, and its shape affects the remaining rate of mixing quality, input and output material speed and discharging of fresh concrete etc.The exemplary stir tube by before, during and after three sections different welding, the stirring vane that is in the mixing drum is also formed by three sections matches, is welded on the barrel.Inner cone adopts the isogonism log spiral with back awl blade bus, and middle roundleaf sheet bus adopts spiral of Archimedes.During work; Mixing drum is around himself axis rotation; Concrete drives along circumference with the barrel that inherent adhesion strength is rotated because of the frictional force with barrel and blade; But after reaching a certain height, must be under the effect of its G that conducts oneself with dignity, overcome above-mentioned frictional force and cohesive force and turn over downwards and fall and slippage.
When mixing drum is done " forward " rotation; Concrete will be stirred the bottom that blade continuously is pushed to mixing drum; Simultaneously; Upset was returned after the concrete that arrives the tube end certainly will be stirred the bottom wall pushing tow of tube again, on the basis of above-mentioned motion, had increased the axial flip-flop movement of concrete levels so again, has reached mixing drum concrete is carried out well-beaten purpose.Do " oppositely " when rotating when mixing drum, the screw direction of stirring vane is also opposite, and at this moment concrete is stirred the blade guiding and moves until nozzle to stirring nozzle direction and draw off, thereby reaches the discharging purpose.
Know that through experimental study the shape of concrete mixing quality and stirring vane and parameter (like helical angle, generating line etc.) are closely related.Improve and improve the whipping performance of stirring vane, can start with from above parameter.
?
Summary of the invention
The object of the invention provides a kind of preparation method of non-isogonism log spiral stirring vane, and non-isogonism log spiral stirring vane has more superior match performance and engages fairness, thereby also has more superior mechanical property.
The generating line equation of the front and back awl blade of former concrete mixer truck is:
The rising of line and descending grade.And we have also proposed following three kinds of function rules:
When
cEqual at 0 o'clock,
Be a definite value, isogonism log spiral of equation 1 expression; When
The time, one of this The Representation Equation waits the angle log spiral; When
During functions such as modus ponens 2 or 3, the helix of equation 1 expression just is called non-isogonism log spiral.
The helix bus equation adopts equation 1, and the design parameter of the concrete stirring vane of function rule employing formula 3 is as shown in table 1.
Table 1 stirring vane basic design parameters
Technique effect of the present invention is: non-isogonism log spiral stirring vane has more superior match performance and engages fairness, thereby also has more superior mechanical property.
The specific embodiment
Get a little according to the helix equation,, on the stirring barrel, rule simultaneously the blade discretization.Specifically the blade with the 8.5LP concrete mixer truck is an example:
For afterwards boring, getting the helical angle rule be:
Table 2 back awl helical blade calculating parameter
And the helix blade adopts the mode of segmentation, and each section adopts mould to extrude blade, is welded into continuous blade according to the trajectory on the barrel then.
Claims (1)
1. the preparation method of a non-isogonism log spiral stirring vane; The front and back awl blade screw bus equation of stirring vane is:,
1
Wherein,
is initial utmost point footpath;
is semi-cone angle;
is the spiral corner;
is helical angle; It is a variable; It is characterized in that
value is
; Wherein,
is initial helical angle;
is coefficient;
adopts following three kinds of function rules for changing function:
Get a little according to the helix equation,, on the stirring barrel, rule simultaneously the stirring vane discretization; The helix stirring vane adopts the mode of segmentation; Each section adopts mould to extrude, and is welded into continuous stirring vane according to the trajectory on the barrel then, obtains non-isogonism log spiral stirring vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102882065A CN102335961A (en) | 2011-09-26 | 2011-09-26 | Preparation method of agitating vane with non-equiangular logarithm helical curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102882065A CN102335961A (en) | 2011-09-26 | 2011-09-26 | Preparation method of agitating vane with non-equiangular logarithm helical curve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102335961A true CN102335961A (en) | 2012-02-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102882065A Pending CN102335961A (en) | 2011-09-26 | 2011-09-26 | Preparation method of agitating vane with non-equiangular logarithm helical curve |
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| CN (1) | CN102335961A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701473A (en) * | 2012-07-05 | 2012-10-03 | 南昌航空大学 | Aerator impeller with log spiral curved surfaces |
| CN103072205A (en) * | 2012-12-25 | 2013-05-01 | 山东建设机械股份有限公司 | Truck-mixed concrete stirring drum |
| CN103540399A (en) * | 2013-09-30 | 2014-01-29 | 宁国市沙埠粮油加工厂 | Rapeseed processing device |
| CN106148065A (en) * | 2016-08-30 | 2016-11-23 | 重庆市江津区当津酒业有限公司 | Portable steam Brewing equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432032Y (en) * | 2000-08-10 | 2001-05-30 | 华东建筑机械厂 | Concrete mixer |
-
2011
- 2011-09-26 CN CN2011102882065A patent/CN102335961A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2432032Y (en) * | 2000-08-10 | 2001-05-30 | 华东建筑机械厂 | Concrete mixer |
Non-Patent Citations (3)
| Title |
|---|
| 邢普 等: "混凝土搅拌车搅拌叶片新型母线及其应用研究", 《建筑机械》, 14 February 2007 (2007-02-14) * |
| 邢普 等: "非等角对数螺旋线搅拌叶片的实验研究", 《工程设计学报》, vol. 15, no. 1, 29 February 2008 (2008-02-29) * |
| 邢普 等: "非等角对数螺旋线搅拌叶片的设计研究", 《工程机械》, no. 04, 30 April 2006 (2006-04-30) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701473A (en) * | 2012-07-05 | 2012-10-03 | 南昌航空大学 | Aerator impeller with log spiral curved surfaces |
| CN102701473B (en) * | 2012-07-05 | 2014-07-09 | 南昌航空大学 | Aerator impeller with log spiral curved surfaces |
| CN103072205A (en) * | 2012-12-25 | 2013-05-01 | 山东建设机械股份有限公司 | Truck-mixed concrete stirring drum |
| CN103540399A (en) * | 2013-09-30 | 2014-01-29 | 宁国市沙埠粮油加工厂 | Rapeseed processing device |
| CN106148065A (en) * | 2016-08-30 | 2016-11-23 | 重庆市江津区当津酒业有限公司 | Portable steam Brewing equipment |
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Application publication date: 20120201 |
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| RJ01 | Rejection of invention patent application after publication |