CN108249305A - A kind of twin beams ladle carne pours into a mould auxiliary hoisting mechanism translating stroke formulating method - Google Patents
A kind of twin beams ladle carne pours into a mould auxiliary hoisting mechanism translating stroke formulating method Download PDFInfo
- Publication number
- CN108249305A CN108249305A CN201810068098.2A CN201810068098A CN108249305A CN 108249305 A CN108249305 A CN 108249305A CN 201810068098 A CN201810068098 A CN 201810068098A CN 108249305 A CN108249305 A CN 108249305A
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- CN
- China
- Prior art keywords
- ladle
- hoisting mechanism
- auxiliary
- carne
- auxiliary hook
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
Abstract
The present invention provides a kind of twin beams ladle carne cast auxiliary hoisting mechanism translating stroke formulating method, belongs to metallurgical special purpose crane scope.This method mainly uses the kinematic principle of steel ladle pouring molten steel toppling process, first show that twin beams ladle carne is tumbled the horizontal position variation of auxiliary hook suspension centre during ladle, then makes cast auxiliary hoisting mechanism translating stroke by the changing rule of auxiliary hook suspension centre horizontal position.This method be suitable for not co-content, band tumble connecting rod ladle tumble cast when auxiliary hoisting mechanism translating stroke design construction, be ladle carne constitution optimization, intelligentized control method and unattended programming basis.
Description
Technical field
The present invention provides a kind of twin beams ladle carne cast auxiliary hoisting mechanism translating stroke formulating method, belongs to metallurgical special
With crane scope.
Background technology
At present, the structure type of widely used four beams, the four rail master-pair double trolley of China's ladle carne.The structure type will
Ask crane span structure that four relatively independent girders are set, main-secondary trolley can be run on respectively independent track, non-interference, work
It is big to make area coverage.Although the action for the ladle that can complete to tumble, the crane of the structure type is conducted oneself with dignity larger, crane
It manufactures cost and workshop support rail beam cost is higher, and since the total high and beam overall size of the ladle carne of this structure type is big, make
Construction cost into workshop is high.
Structure type according to the present invention is that master-auxiliary hoisting mechanism is arranged on same main carriage while sets pair
Hook fixed pulley group trolley, such auxiliary hook can be moved forward and backward with the operation in orbit of auxiliary hook fixed pulley group trolley, using this
The ladle carne of kind structure type need to only set two girders, and package size reduces, and the construction cost of crane and workshop drops
It is low.Ladle when hung ladle topples over molten steel and clears up slag can be completed simultaneously to tumble.
And in ladle carne structure type of the present invention, relying primarily in auxiliary hoisting mechanism before corresponding construction
Movement is completed to turn over packet movement afterwards, and at present, there is no the specifically determining methods of its stroke.
Invention content
It is an object of the present invention to provide a kind of twin beams ladle carnes to pour into a mould auxiliary hoisting mechanism translating stroke formulating method, with solution
Certainly its auxiliary hoisting mechanism translating stroke is not proposed currently for ladle carne structure type according to the present invention specific
The problem of determining method.
If Figure of description 1 show twin beams ladle carne structure type according to the present invention, slided surely using auxiliary hook
Master-auxiliary hoisting mechanism of the ladle carne of wheel group trolley is arranged on main carriage, and secondary trolley is auxiliary hook fixed pulley group trolley.It should
With the ladle carne of this structure type when tumbling ladle, need to control moving forward and backward for secondary trolley, therefore, it is necessary to its row
Cheng Jinhang is formulated, and is smoothly completed the ladle carne and is turned over packet action.
To achieve the above object, a kind of twin beams ladle carne cast auxiliary hoisting mechanism translating stroke formulating method is as follows.
Schematic diagram when Figure of description 3 show respectively 0 ° of ladle inclination, (90 ° of-α), turns when ladle is tumbled around O points
It is dynamic.When ladle starts to tumble, C points are stuck in ladle bottom and stretch out in the slot of plate, drive ladle rotation, at this time lower half portion connecting rod
There is angle α with X-axis, the movement locus of C points is using O as the center of circle, and OC wire lengths are the circular arc of radius.Ladle turns in the figure
After (90 ° of-α), lower half portion connecting rod CD is parallel with Y-axis, and C points are detached from slot, and ladle rotation, the movement locus of D points are driven by D points
For centered on O, OD wire lengths are the circular arc of radius.
In Figure of description 3 (a), the angle α, OC and X-axis of lower half portion connecting rod and X-axis are measured respectively by ladle size
Angle β and OD and X-axis angle γ, and measure LOD、LACAnd LOD.Using O as origin, horizontal direction is X-axis, vertical direction Y
Axis establishes rectangular coordinate system, can obtain C point coordinates and D point coordinates.
Be respectively shown in Figure of description 4 just report tilt 30 °, β, 120 ° when schematic diagram.In figure, arc EF moves rail for C points
Mark, arc HK are D point movement locus.As seen from the figure ladle inclination angle by 0 ° to β when, the line AC of auxiliary hook hoisting point position A points and C points
It is tangent with arc EF.If ladle is tumbled, angle is φ, and as ladle inclination angle phi=β, AC is parallel with Y-axis, also, when ladle continues
When being tumbled by β to 180 °, AC is parallel with Y-axis always.
Due to requiring the horizontal displacement of secondary trolley, ladle height and position is related during with toppling over molten steel.So demand suspension centre A
Transverse and longitudinal coordinate changes.It can be obtained by above-mentioned condition, when φ ∈ [0 °, β], the abscissa of suspension centre A is：XA=LOCcos(β-φ)+
LACsin(β-φ)
The ordinate of suspension centre A is：
YA=-LOCsin(β-α) +LACcos(β-α)；
As φ ∈ [β, (90 ° of-α)], the abscissa of suspension centre A is：
XA=LOC×cos(β-φ)
The ordinate of suspension centre A is：
YA= LAC-LOCsin(β-α)；
As φ ∈ [(90 ° of-α), 180 °], the abscissa of suspension centre A is：
XA=LODcos(γ-φ)
The ordinate of suspension centre A is：
YA= LAC+LCD-LODsin(γ-φ)。
As shown in Figure of description 5, during ladle is tumbled, auxiliary hook is moved with the translation of secondary trolley.Work as pair
The hook distance to be moved is X1When, the distance moved needed for secondary trolley is X2.When ladle starts to tumble, after auxiliary hook first moves right
It is moved to the left.When the maximum position to move right is happened at φ ∈ [0 °, β].Then to formula (1) derivation, if β-φ=μ, obtains：
XA ’=- LOC×sinμ+ LAC×cosμ=0
μ=arctan(LAC/LOC)
Auxiliary hook to the right displacement maximum when, the angle φ of tumbling of ladle is：
φ=β-arctan(LAC/LOC)
When auxiliary hook is to left dislocation maximum, ladle is tumbled angle φ=180 °.
If the initial position co-ordinates of secondary trolley are X0fxc, the initial position co-ordinates of auxiliary hook acquire by formula (1)（Temporarily it is set as X0A）,
If secondary trolley drive auxiliary hook completion is tumbled during ladle action, stroke Sfxc。
Secondary trolley initial position co-ordinates are often related with auxiliary hoisting mechanism steel wire steel pulley block ratio, due to the use of cunning is determined
Wheel group, therefore its pulley block ratio m >=2, then
X0fxc=X0A -(Ym-YA)tanθ0/(mf-1)
In formula：ymFor fixed pulley group center ordinate, y on secondary trolleyAFor auxiliary hook suspension centre ordinate, mfFor auxiliary hoisting mechanism steel wire
Steel pulley block ratio,
tanθ0=X0/(Y0-YA0)
In formula：X0Auxiliary hoisting mechanism reel and auxiliary hook are in horizontal distance, Y during for initial position0Drum center ordinate, YA0For pair
Hook initial position ordinate.
When secondary moving of car is to limit on the right-right-hand limit position, β-φ=μ, φ ∈ [0 °, β], coordinate is：
X1fxc=X0fxc+(Ym-Y1A)tanθ1/ (m-1),
When auxiliary hook pulley blocks moving of car is to limit on the left position, φ=180 °, coordinate is：
X2fxc=X0fxc-(Ym-Y2A)tanθ2/ (m-1),
tanθ=(X0-XA)/(Y0-YA)。
Above-mentioned Derivative limit on the left or on the right position coordinates are subtracted each other to obtain secondary trolley stroke：
Sfxc=X1fxc-X2fxc=(Ym-Y1A)tanθ1/(m-1)+(Ym-Y2A)tanθ2/ (m-1),
Y1A=LOCsinμ+LAC cosμ
tanθ1=(X0-LOCcosμ-LACsinμ)/(Y0+LOCsinμ-LAC cosμ)
Y2A=LAC+LCD-LODsin(γ-180°)
tanθ2=[X0-LODcos(γ-180°)]/[Y0-LAC-LCD+LODsin(γ-180°)]
In formula：LOC、LAC、LODIt is measured with γ from the ladle actual size to be calculated；X0Auxiliary hoisting mechanism is rolled up during for initial position
Cylinder is with auxiliary hook in horizontal distance, YmHeight and position when molten steel is toppled over by ladle determines, Y0It is rolled up for ladle carne auxiliary hoisting mechanism
Cylinder center to ladle trunnion center vertical distance, m be auxiliary hoisting mechanism pulley block ratio, μ=arctan (LAC/ LOC)。
When actually manufacturing main carriage frame, need to be laid with the track of secondary trolley, it is contemplated that structure size of secondary trolley itself,
Track length is slightly larger than the sum of the stroke of secondary trolley and secondary trolley this body length.
Description of the drawings
Fig. 1 is the ladle carne trolley schematic diagram using this structure type of auxiliary hook fixed pulley group trolley, wherein 1 is casting
Monkey, 11 be main hoisting mechanism, and 12 be auxiliary hoisting mechanism, and 121 be auxiliary hook fixed pulley group trolley.
Fig. 2 tumbles process and auxiliary hook change in location figure for band link-type ladle of tumbling, and (a) is when ladle tilts 0 ° in figure
Position, (b) be ladle tilt 60 ° when position, (c) be ladle tilt 120 ° when position, (d) be ladle tilt 180 ° when
Position, 123 be auxiliary hook, and 2 be ladle.
Fig. 3 for steel ladle incline 0 °/(90 ° of-α) when schematic diagram, in figure (a), steel ladle tilts 0 °, and in figure (b), steel ladle is inclined
Tiltedly (90 ° of-α).
Fig. 4 for ladle tilt 30 °, β, 120 ° when schematic diagram, in figure (a), ladle tilts 30 °, in figure (b), and ladle tilts
β, in figure (c), ladle tilts 120 °.
Fig. 5 calculates schematic diagram for various point locations coordinate, and 121 be auxiliary hook fixed pulley group trolley in figure, and 122 be auxiliary hoisting mechanism
Reel, 123 be auxiliary hook, XAFor auxiliary hook horizontal position coordinate, YAFor auxiliary hook vertical position coordinate, XmIt is sat for secondary trolley horizontal position
Mark, YmFor secondary trolley vertical position coordinate, Y0For drum center vertical position coordinate.
Fig. 6 is auxiliary hook position and secondary trolley position relationship schematic diagram, and 121 be auxiliary hook fixed pulley group trolley in figure, and 122 be pair
Lifting mechanism reel, 123 be auxiliary hook, X1For auxiliary hook horizontal displacement, X2For auxiliary hook fixed pulley group trolley horizontal displacement.
Fig. 7 is the variation relation curve of suspension centre abscissa and the abscissa of secondary trolley as m=2.
Specific embodiment
Illustrate the specific implementation of the present invention with the auxiliary hoisting mechanism translating stroke calculating process of 400t twin beams ladle carnes
Mode.
Main hoisting mechanism 11 and secondary lifting machine using the ladle carne of 121 this structure type of auxiliary hook fixed pulley group trolley
Structure 12 is arranged on main carriage 1.During ladle 2 is tumbled, rolled up by auxiliary hook fixed pulley group trolley 121 and auxiliary hoisting mechanism
122 folding and unfolding steel wire ropes of cylinder drive auxiliary hook 123 to move.
When calculating the auxiliary hoisting mechanism translating stroke of 400t twin beams ladle carnes, measured first according to 400t ladle models
LOC、LAC、LODWith γ, value is respectively：LOC=3918mm、LAC=1420mm、LOD=3564mm、γ=115.2°.Work as YmDuring=15m,
Y0Its numerical value is substituted into auxiliary hoisting mechanism translating stroke calculation formula by=16.2m respectively：
Sfxc=(Ym-Y1A)tanθ1/(m-1)+(Ym-Y2A)tanθ2/ (m-1),
Y1A=LOCsinμ+LAC cosμ
tanθ1=(X0-LOCcosμ-LACsinμ)/(Y0+LOCsinμ-LAC cosμ)
Y2A=LAC+LCD-LODsin(γ-180°)
tanθ2=[X0-LODcos(γ-180°)]/[Y0-LAC-LCD+LODsin(γ-180°)]
μ=arctan(LAC/ LOC)。
Obtain 400t twin beams ladle carne auxiliary hoisting mechanism translating strokes：
μ=arctan(LAC/ LOC)=arctan(1420/3918)=19.9°
Sfxc=(Ym-Y1A)tanθ1/(m-1)+(Ym-Y2A)tanθ2/(m-1)≈5300mm
Then 400t twin beams ladle carne auxiliary hoisting mechanism translating stroke is 5300mm.
When actually manufacturing 400t ladle carne main carriage framves, need to be laid with the track of auxiliary hook fixed pulley group trolley, examine
Consider secondary trolley structure size itself, track length is slightly larger than the sum of the stroke of secondary trolley and secondary trolley this body length.
By the design to secondary trolley, the length of 1508mm, then can determine its track length is about 7000mm ＞ 5300mm+1508mm
=6808mm。
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, all according to technical solution of the present invention
The change made when the resulting functional effect does not exceed the scope of the technical solution of the present invention, belongs to the protection model of the present invention
It encloses.
Claims (3)
1. a kind of twin beams ladle carne pours into a mould auxiliary hoisting mechanism translating stroke formulating method, show that ladle carne is tumbled first
The horizontal position variation of auxiliary hook suspension centre, is derived by the variation of auxiliary hook suspension centre horizontal position auxiliary hook is asked to determine later during ladle
The stroke formula of pulley blocks trolley is：
Sfxc=(Ym-Y1A)tanθ1/(mf-1)+(Ym-Y2A)tanθ2/(mf- 1), mf≥2。
2. formula according to claim 1, wherein：
YmThe height and position of ladle determines when toppling over molten steel by ladle carne；
Remaining is acquired by equation below：
Y1A=LOCsinμ+LACCos μ,
tanθ1=(X0-LOCcosμ-LACsinμ)/(Y0+LOCsinμ-LACCos μ),
Y2A=LAC+LCD-LODSin (γ -180 °),
tanθ2=[X0-LODcos(γ-180°)]/[Y0-LAC-LCD+LODsin(γ-180°)]。
3. formula according to claim 2, wherein LOC、LAC、LODIt is measured with γ from the ladle actual size to be calculated；X0
Auxiliary hoisting mechanism reel and auxiliary hook are in horizontal distance, Y during for initial position0For ladle carne auxiliary hoisting mechanism drum center extremely
The vertical distance at ladle trunnion center, the height and position of ladle determines when equally toppling over molten steel by ladle carne, mfIt is risen for pair
Rise mechanism pulley block ratio, μ=arctan (LAC/LOC)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068098.2A CN108249305A (en) | 2018-01-24 | 2018-01-24 | A kind of twin beams ladle carne pours into a mould auxiliary hoisting mechanism translating stroke formulating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068098.2A CN108249305A (en) | 2018-01-24 | 2018-01-24 | A kind of twin beams ladle carne pours into a mould auxiliary hoisting mechanism translating stroke formulating method |
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| CN108249305A true CN108249305A (en) | 2018-07-06 |
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| CN201810068098.2A Pending CN108249305A (en) | 2018-01-24 | 2018-01-24 | A kind of twin beams ladle carne pours into a mould auxiliary hoisting mechanism translating stroke formulating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158714A (en) * | 2020-09-28 | 2021-01-01 | 河南卫华重型机械股份有限公司 | Lifting device with synchronous lifting and auxiliary turning functions |
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2018
- 2018-01-24 CN CN201810068098.2A patent/CN108249305A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158714A (en) * | 2020-09-28 | 2021-01-01 | 河南卫华重型机械股份有限公司 | Lifting device with synchronous lifting and auxiliary turning functions |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |
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| WD01 | Invention patent application deemed withdrawn after publication |