CN101672184A - Rice character type structure arrangement method of hobs of full section rock digging machine - Google Patents
Rice character type structure arrangement method of hobs of full section rock digging machine Download PDFInfo
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- CN101672184A CN101672184A CN 200910187788 CN200910187788A CN101672184A CN 101672184 A CN101672184 A CN 101672184A CN 200910187788 CN200910187788 CN 200910187788 CN 200910187788 A CN200910187788 A CN 200910187788A CN 101672184 A CN101672184 A CN 101672184A
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Abstract
The invention discloses a rice character type structure arrangement method of hobs of a full section rock digging machine, belonging to the design field of a cutter disk of the full section rock digging machine. Geologic parameters and digging parameters are confirmed according to a geologic report of tunnel engineering, wherein the parameters comprise rock unconfined shear strength, rock uniaxialcompressive strength Sigma, rock brazilian tensile strength Sigma Tau, rock stability, digging speed and cutter disk rotate speed. An automatic solve model of the arrangement problem of the hobs on the cutter disk is built, so as to confirm the arrangement position of the positive hobs and the edge hobs with the rice character type arrangement method and a synergetic evolution method. When the hobs are arranged on the faceplate type cutter disk, the technical performance index needs to be met comprises side force to the cutter disk, the overturning moment, interfere area, and the quantity andthe mass center of non-order cock fragmentation of the adjoining hobs. The method can fast and effectively confirm the arrangement position of the cutter on the cutter disk, prolong the service lifeof the cutter disk of the digging machine, the cutter and the large bearing of the cutter disk, reduce the shake and the noise of the digging machine, and improve the digging efficiency of the cutterdisk.
Description
Technical field
The invention belongs to full face rock tunnel boring machine cutterhead design field, the multiple technologies when considering the hobboing cutter layout design require and cutterhead is made assembly technology requirement, particularly a kind of full face rock tunnel boring machine hobboing cutter rice font layout design.
Background technology
Full face rock tunnel boring machine (TBM) is a kind of large-scale special engineering machinery of tunnel piercing, is widely used in subway, railway, highway, municipal administration, water power construction of tunnel, involves great expense.Wherein the layout design of hobboing cutter on cutterhead is the core technology of development machine design, reasonably cutter is arranged improving cutterhead Denver Nuggets performance, cutter life and the big bearing life of cutterhead, alleviate the development machine vibrations, reduction noise etc. has very important effect, if it is unreasonable that cutter is arranged, can cause the development machine vibration noise excessive, the cutterhead discontinuity causes the disastrous effect of the big bearing premature failure of cutter and cutterhead.
Arrange on the TBM cutterhead when the broken rock of cutter tunnels, also need reasonable Arrangement scraper bowl, hole for water spraying, deslagging opening, people's hole path etc., the hobboing cutter layout design will be taken into account the stressed installation of cutter, the rock quarrel circulates, is convenient to install composite factors such as water pipe, hobboing cutter arranges it is the most important technological means of optimizing the development machine performance, because complex geological conditions and be subjected to harsher constraint, make the hobboing cutter layout design more difficult also more important, decision development machine construction success or not.In the Crane sesame construction of tunnel as Singapore's deep layer tunnel drainage; because it is more serious than expectation that longer distance is mixed the existence of excavating the interface in the frequent changeable and mining process of geological conditions; cause hobboing cutter tool serious wear, downtime long; arrange (comprise and reduce hobboing cutter quantity, expansion cutter spacing) through remodifying hobboing cutter; make tool abrasion reduce by 8.5%, the machinery utilization rate increases more than 1 times.
The research of arranging about the cutter of TBM cutterhead, abroad in the document, how to have studied development machine hobboing cutter construction parameter model theoretically, mainly comprise single factor forecast model, integrated forecasting model (CSM model and NTNU model), above-mentioned model has provided the relation of hobboing cutter between the stressed and construction parameter on the cutterhead, and does not relate to the fix a cutting tool research of layout design method of cutterhead.At home, China Patent No.: 200320122509.0, patent name is: " compound shield ", this patent readme is: " the utility model compound shield; ..., on the card panel, intersect and be equipped with 22 the 17 inches back loading type hobboing cutters and the cutter of going ahead of the rest, install 24 unevenly removable scraper two former both sides; on the cutterhead outer rim, inlay the limit cutter of forming by the wear-resistant cutter of carbide alloy, on the radially position of cutterhead disk body forward position outer rim, the cutter of following an example is housed ".China Patent No.: 00223171.9, patent name is: " multi-functional full bore tunnel shield machine ", this patent readme is: " for reaching the full section rock drilling in tunnel purpose; the head plane is divided into 26 layers; amount to 80 cover rock drilling facility; go up layout at first floor (being head maximum size) 15 cover rock drilling facility are installed; the second layer arranges that installing 10 overlaps the rock drilling facility; the 3rd layer is 6 covers, the 26th layer is 1 cover, every interlayer all adopts the intersection diminishing method to distribute and installs, and its advantage is that the full section rock drilling of enforcement is effective, and the big hammer drill in locus is installed well., on the head plane distribution of kerf cutter and rock drilling similar, it is that the head plane is divided into 7 layers, arrange 22 cover hobboing cutters, arrange for the 1st layer 6 cover kerf cutters, the 2nd layer of 6 cover are installed, the 3rd layer of 4 cover ... the 7th layer of 1 cover also is to adopt intersection to successively decrease to arrange installation ".Above-mentioned domestic patent " compound shield " and " multi-functional full bore tunnel shield machine " have only provided the quantity that the definite hobboing cutter of shield machine is arranged, undeclared method how to determine cutter particular location on cutterhead, how research does not carry out the automation layout design method that cutterhead is fixed a cutting tool at different rock geology conditions and construction parameter.China Patent No.: 200910076488.5, patent name is: " positive hobboing cutter and the balancing arrangement method of transition hobboing cutter on cutterhead ", this patent readme is: " the invention belongs to complete-section tunnel boring machine (full face rock tunnel boring machine and shield structure) cutterhead design field, particularly positive hobboing cutter and the balancing arrangement method of transition hobboing cutter on cutterhead.Described method is drawn helix by setting up subsidiary equation, and at the default locus circle intersection point of helix and each disk cutter disk cutter is installed in a certain order., the reliability and the operation life-span of the work of raising complete-section tunnel boring machine." this patent only provided the rule that should follow that positive hobboing cutter and limit hobboing cutter are arranged; but when arranging, do not consider the various technical requirementss that hobboing cutter is arranged; as slag notch on the cutterhead require, distinguish requires and the manhole requirement, also do not provide the The Automation Design method of how determining the hobboing cutter position according to this rule simultaneously.
In sum, the research that Chinese scholars is fixed a cutting tool aspect the type selecting at rock breaking mechanism, development machine cutterhead Force Calculation and development machine cutterhead has obtained some Primary Study achievements, carries out the The Automation Design method research that cutter rice font is arranged but yet there are no from the layout optimization angle.
Summary of the invention
The objective of the invention is to require and make matching requirements, provide a kind of meter font layout design method to determine the installation site of cutter on cutterhead at the complex technology that lithostratigraphy condition complicated and changeable and cutterhead manufacture and design.
The technical scheme that content of the present invention adopts: a kind of full face rock tunnel boring machine hobboing cutter rice font layout design, being divided into following a few step carries out:
(1), determines geologic parameter and construction boring parameter according to the geologic report of seepage tunnel engineering; Geologic parameter comprises: rock unconfined shear strength τ, rock uniaxiality strength σ, the Brazilian tensile strength sigma of rock
τ, surrounding rock stability; The construction boring parameter comprises: driving speed, cutterhead rotating speed; If geologic report can not provide needed geologic parameter, then need to carry out the country rock geological sampling, carry out rock single shaft resistance to compression tension and test and obtain relevant geologic parameter;
When (2) dise knife is arranged, cutterhead overall technology performance indications be need satisfy on the panel type cutterhead, non-broken in turn rock quantity of lateral force, overturning moment, interference area, adjacent hobboing cutter and barycenter that cutterhead is subjected to comprised; Lateral force is less than 5KN, and overturning moment interferes area to equal 0 less than 50KN.m, and adjacent hobboing cutter can not be at same position angle in placement process, and centroid position numerical value is smaller or equal to 3mm;
(3) establishing cutter diameter is D, determines that the quantity of rice font structure branch line is q, D≤q≤α D wherein, and α is an amplification coefficient, gets 1≤α≤6, and α numerical value increases with cutter diameter and reduces; Rice font structure branch line is a starting point with the cutter rotary center, every
The angle q bar ray that draws, label is 1～q counterclockwise respectively;
(4) determine rice font structure layout area: the utmost point of establishing first limit hobboing cutter is through being ρ
t, be the center of circle with the cutter rotary center, radius is ρ
tDraw a circle, determine that the circle inner region is positive hobboing cutter rice font structure layout area, the annular region to the cutterhead edge beyond this circle is hobboing cutter random arrangement zone, limit;
(5) the layout quantity of establishing on the cutterhead positive hobboing cutter is n
1, adjacent positive hobboing cutter layout angle difference in turn is θ
d, be starting point with the cutter rotary center, each positive hobboing cutter on cutterhead the utmost point through ρ
tBe radius, draw n
1Individual concentric circles, each concentric circles and q bar ray intersect at q intersection point, and this q intersection point is the selectable layout reference point of positive hobboing cutter, and the set note of all reference points is L, L={L
1..., L
q; To n
1Individual positive hobboing cutter carries out meter font structure to be arranged, the structure subsidiary equation:
Wherein k is the sequence number k={1 of positive hobboing cutter ..., n
1, θ
kBe the position angle of k positive hobboing cutter, when k was odd number, k found the solution positive hobboing cutter position and obtains according to subsidiary equation; When k was even number, k was positive hobboing cutter angular position theta
k=θ
K-1+ π.Make the position angle of positive hobboing cutter in placement process, satisfy simultaneously | θ
k-θ
K-1| 〉=θ
dWith | θ
K+1-θ
k| 〉=θ
d
(6), set up the automation solving model of hobboing cutter Layout Problem on the cutterhead according to tunnel geology condition, construction requirement, cutterhead overall technology performance requirement and rice font structure;
(7) former hobboing cutter Layout Problem is decomposed into positive hobboing cutter and arranges subproblem and limit hobboing cutter layout subproblem, adopt Shuangzi problem Cooperative Evolutionary to determine the position of all limit hobboing cutters.
According to tunnel geology condition, construction requirement, cutterhead overall technology performance requirement and assembly technology requirement, set up the automation solving model of hobboing cutter Layout Problem on the cutterhead in the described step (5).
Ask hobboing cutter layout design scheme X ∈ R on the cutterhead
3n
Constraints is:
1) do not interfere requirement:
2) the broken in turn rock of adjacent hobboing cutter requires:
3) barycenter distributes and requires:
g
4(X，U
I)＝|x
m-x
e|-δx
e≤0
g
5(X，U
I)＝|y
m-y
e|-δy
e≤0
4) cutterhead manhole, slag notch require:
In the formula, f
1(X) the lateral force F that is subjected to for cutterhead
s, promptly these power formation joints are the plane concurrent force system at cutter rotary center.f
2(X) the carrier inertial force F that moves for hobboing cutter
e, direction is along the normal direction of hobboing cutter locus circle and be intersected in the centre of gyration of cutterhead, constitutes the plane concurrent force system, f
3(X) the vertical force F that is subjected to for all hobboing cutters
vResultant moment M to cutterhead centre of gyration o generation
v, Δ V
IjExpression hobboing cutter Cut
i, Cut
jThe interference volume, S
IjBe adjacent two hobboing cutter Cut
i, Cut
jThe cutter spacing, the machete spacing that [S] can fractured rock allows for hobboing cutter, (x
m, y
m) be the actual value of all hobboing cutter centroid positions on the cutterhead, (x
e, y
e) be the desired value of the overall centroid position of cutterhead, (δ x
e, δ y
e) be the allowable value of the overall centroid position error of cutterhead;
Represent that scum hole does not conflict mutually on manhole on each hobboing cutter and the cutterhead and the cutterhead.
According to multimodal, discontinuous, non-linear, the multiobject characteristics that hobboing cutter is arranged the automation solving model, adopt Cooperative Evolutionary to find the solution; A columniform arrangement space is arranged on the cutter head structure, arrange different cutters according to function in the arrangement space, cutter according to type can be divided into center hobboing cutter, positive hobboing cutter, limit hobboing cutter, all kinds of cutters are according to the functional structure difference, and the Force Calculation mode is also different, carry out the coevolution subproblem according to the function of cutter and decompose, difference according to tool category, be divided into two subproblems, first subproblem is that positive hobboing cutter is arranged subproblem, and second subproblem arranged subproblem for the limit hobboing cutter; Positive hobboing cutter position determines that by the rice font structure give a sub-group to second subproblem, two sub-groups are worked in coordination with and found the solution, and obtain hobboing cutter position, limit in first subproblem.
Effect of the present invention be according to cutterhead overall technology performance requirement and assembly technology requirement, cutterhead carry outward, construction requirement, rock conditions, seepage tunnel project geologic condition, the positive hobboing cutter layout rules of rice font is proposed, set up hobboing cutter and arrange the automation solving model, classify according to the hobboing cutter type, each class hobboing cutter is arranged subproblem as one, a plurality of layout subproblems are collaborative to be designed, and adopts Cooperative Evolutionary Algorithm to find the solution.Compare with traditional experience method for designing, the invention provides a kind of all-section rock tunneling machine cutter rice font layout design method of automation, can determine the optimization position of cutter on cutterhead fast and effectively, make that external force and moment of face that cutterhead is subjected to are very little, avoid the big bearing of cutter, cutterhead and cutterhead to damage unusually, thereby prolong development machine cutterhead, cutter and the big bearing life of cutterhead, alleviate the development machine vibrations, reduce noise, make adjacent hobboing cutter all have certain free face simultaneously and carry out high efficiency fractured rock, improve the cutterhead drivage efficiency.
Description of drawings
Fig. 1 is cutter rice font structure layout area and arrangement schematic diagram, wherein 1,2 ..., q is a rice font structure branch sequence number, i-1, i, i+1 represent 3 adjacent arbitrarily positive hobboing cutters;
Fig. 2 represents hobboing cutter preferred arrangement scheme schematic diagram, and wherein, 1 is the limit hobboing cutter, and 2 is manhole, and 3 is slag notch, and 4 is the center hobboing cutter, and 5 is positive hobboing cutter;
The specific embodiment
Describe enforcement of the present invention in detail with technical scheme in conjunction with the accompanying drawings, the present invention is that example is carried out hobboing cutter layout design on the cutter head of shield machine with certain seepage tunnel engineering, on the panel type cutterhead, arrange 51 hobboing cutter, known conditions is as follows: 1. geologic parameter: geology section rock is mainly based on migmatitic granite (mixgranite), rock unconfined shear strength τ=5～8 (MPa), rock uniaxiality strength σ=50～80 (MPa), 2. development machine cutterhead basic parameter: the radius R=4.015m of cutterhead, the rotational speed omega of cutterhead=6 (r/min)=0.6283rad/s, mass M=the 200kg of each disk cutter, diameter D=19 inch=483mm, cutting-in h=10mm, cutter basil α=2.09434rad.Center cutter n
1=8, limit cutter n
2=10, positive cutter n
3=33, require as follows to the solid cutter placement technique: the desired value (x of the overall centroid position of cutterhead
e=0mm, y
e=0mm), allowable value (the δ x of the overall centroid position error of cutterhead
e=5mm, δ y
e=5mm).
Before carrying out the hobboing cutter layout, at first to determine cutterhead manhole and scum hole quantity and position, according to the engineering requirement, 4 manholes are set above the cutterhead, the radius of manhole is 200mm, and the position in people hole is shown in Table 2, and scraper and slag notch adopt the symmetric arrangement mode, arrange 4 pairs of slag notches altogether, scraper and slag notch position are shown in Table 3.Hobboing cutter utmost point footpath numerical value is shown in Table 1.
Table 1 hobboing cutter utmost point footpath number list
Hobboing cutter arranges that unreasonable meeting causes cutterhead to be subjected to bigger radial load and overturning moment, can reduce cutter spindle and hold the application life of cutterhead disk body, therefore when the hobboing cutter layout designs, need cutterhead radial load (perpendicular) as much as possible little with the cutter rotary axis; The stressed balance as far as possible of cutterhead, overturning moment is as far as possible little; Treat not interfere and do not exceed between the cloth hobboing cutter arrangement space of cutterhead; The barycenter of overall cutter near or be positioned at the cutter rotary center, to avoid producing additional moment, make cutterhead uniform rotation as much as possible; Adjacent hobboing cutter makes each hobboing cutter can have certain broken rock space when arranging on the cutterhead plane; When hobboing cutter is arranged, also should consider requirement such as deslagging opening, people's hole path on the cutterhead, make and avoid conflicting when hobboing cutter is arranged with them.
The hobboing cutter layout is general main to be the layout of considering positive hobboing cutter and limit hobboing cutter, provide a meter font structure placement policies based on the present invention, at first determine rice font structure numbers of branches, cutter diameter is D=8m, and 1≤α≤6, according to formula D≤q≤α D, rice font structure numbers of branches scope is 8≤q≤48 on the cutterhead, because this cutterhead is medium-scale cutterhead, therefore set q=20.The angle that then adjacent two branches differ is
With the cutter rotary center is starting point, every
Angle 20 rays that draw, label is 1～20 counterclockwise respectively, sees shown in accompanying drawing 1 and the accompanying drawing 2.
Can learn that by table 1 utmost point warp of first limit hobboing cutter is ρ
t=3646mm is the center of circle with the cutter rotary center, and radius is that 3646mm draws a circle, determines that the circle inner region is a hobboing cutter rice font structure layout area, and the annular region to the cutterhead edge beyond this circle is a hobboing cutter random row layout area;
The layout quantity of positive hobboing cutter is n on the cutterhead
1=33, adjacent hobboing cutter layout angle difference in turn is θ
d=54, be starting point with the cutter rotary center, each positive hobboing cutter on cutterhead the utmost point through ρ
tBe radius, draw 33 concentric circles, each concentric circles and 20 rays intersect at 20 intersection points, and these 20 intersection points are the selectable layout reference point of positive hobboing cutter, and note is L={L
1..., L
20; To 33 positive hobboing cutters according to subsidiary equation
Carrying out meter font structure arranges, as shown in Figure 2, the positive hobboing cutter of the first is arranged in first concentric circles and the 1st branch intersection, second hobboing cutter and first hobboing cutter symmetric arrangement, therefore be arranged in second concentric circles and Sub_clause 11 branch intersection, by that analogy, finally determine the position of all positive hobboing cutters.
And then, positive hobboing cutter is divided into one group, the limit hobboing cutter is divided into another group, and gives an evolution colony, adopt Cooperative Evolutionary Algorithm to carry out automation and find the solution the position that obtains limit hobboing cutter layout.Every technical performance result of calculation contrast of finding the solution the cutterhead preferred arrangement scheme that obtains and former hobboing cutter arrangement is shown in Table 4.The cutterhead intensity and toughness parameter of preferred arrangement scheme and former arrangement is as shown in table 5 under the different operating modes.
The position in table 2 people hole
The size of table 3 scraper and slag notch and position
The performance indications of table 4 optimal location scheme
Annotate: in the table on the non-quantitaes of the hobboing cutter in turn cutterhead all adjacent hobboing cutters do not satisfy the quantity that position angle requires
Full face rock tunnel boring machine cutterhead Layout Problem with certain construction of tunnel is an example, and hobboing cutter arrangement and former arrangement that the rice font structure method for arranging that adopts the present invention to provide obtains compare, and based on table 4 data, are analyzed from following several respects:
(1) design object (comprising carrier inertial force, overturning moment and lateral force).By table 4 data as can be known, the optimal value of each design object component (carrier inertial force, overturning moment and lateral force) of the optimal location scheme that gets of side's designing institute of the present invention is better than the target value of former scheme.Than former design scheme, the lateral force of gained of the present invention and overturning moment have reduced by 99.9% and 88.3%,
(2) constraint satisfaction degree (amount of interference, barycenter deviation, broken rock and slag notch requirement in turn).As shown in Table 4, the amount of interference of the inventive method and former scheme, barycenter require all to satisfy.As can be seen from Figure 2, the scheme that draws of the present invention design and former scheme all satisfy the broken in turn rock of hobboing cutter and require and the slag notch requirement.Above-mentioned contrast has shown that on the one hand the present invention can realize the The Automation Design that the full face rock tunnel boring machine hobboing cutter is arranged fast, shortens the design cycle, draws the multiple hobboing cutter arrangement that meets the demands, and provides multiple choices to the project planner.
The cutterhead intensity and toughness parameter of preferred arrangement scheme and former arrangement under the different operating modes of table 5
As can be seen from Table 5, under nominal situation and under the full-loading condition, the arrangement that the present invention's design obtains can make the distortion of cutterhead be more evenly distributed, and is more superior, and the arrangement that obtains such as the present invention's design makes the maximum deformation quantity of cutterhead only be 1.036mm; Equally under two kinds of operating modes, the arrangement that the present invention's design obtains can make that the stress distribution of cutterhead is more even, more superior, the arrangement that obtains such as the present invention's design makes the maximum local stress of cutterhead only be 66Mpa and 205Mpa, than former design scheme, reduced by 14.9%, satisfied the intensity and toughness requirement of cutterhead under this kind rock geology condition situation fully.
Claims (3)
1 one kinds of full face rock tunnel boring machine hobboing cutter rice font structure method for arranging is characterized in that:
(1), determines geologic parameter and construction boring parameter according to the geologic report of seepage tunnel engineering; Geologic parameter comprises: rock unconfined shear strength τ, rock uniaxiality strength σ, the Brazilian tensile strength sigma of rock
τ, surrounding rock stability; The construction boring parameter comprises: driving speed, cutterhead rotating speed; If geologic report can not provide needed geologic parameter, then need to carry out the country rock geological sampling, carry out rock single shaft resistance to compression tension and test and obtain relevant geologic parameter;
When (2) dise knife is arranged, cutterhead overall technology performance indications be need satisfy on the panel type cutterhead, non-broken in turn rock quantity of lateral force, overturning moment, interference area, adjacent hobboing cutter and barycenter that cutterhead is subjected to comprised; Lateral force is less than 5KN, and overturning moment interferes area to equal 0 less than 50KN.m, and adjacent hobboing cutter can not be at same position angle in placement process, and centroid position numerical value is smaller or equal to 3mm;
(3) establishing cutter diameter is D, determines that the quantity of rice font structure branch line is q, D≤q≤α D wherein, and α is an amplification coefficient, gets 1≤α≤6, and α numerical value increases with cutter diameter and reduces; Rice font structure branch line is a starting point with the cutter rotary center, every
The angle q bar ray that draws, label is 1～q counterclockwise respectively;
(4) determine rice font structure layout area: the utmost point of establishing first limit hobboing cutter is through being ρ
t, be the center of circle with the cutter rotary center, radius is ρ
tDraw a circle, determine that the circle inner region is positive hobboing cutter rice font structure layout area, the annular region to the cutterhead edge beyond this circle is hobboing cutter random arrangement zone, limit;
(5) the layout quantity of establishing on the cutterhead positive hobboing cutter is n
1, adjacent positive hobboing cutter layout angle difference in turn is θ
d, be starting point with the cutter rotary center, each positive hobboing cutter on cutterhead the utmost point through ρ
tBe radius, draw n
1Individual concentric circles, each concentric circles and q bar ray intersect at q intersection point, and this q intersection point is the selectable layout reference point of positive hobboing cutter, and the set note of all reference points is L, L={L
1..., L
q; To n
1Individual positive hobboing cutter carries out meter font structure to be arranged, the structure subsidiary equation:
Wherein k is the sequence number k={1 of positive hobboing cutter ..., n
1, θ
kBe the position angle of k positive hobboing cutter, when k was odd number, k found the solution positive hobboing cutter position and obtains according to subsidiary equation; When k was even number, k was positive hobboing cutter angular position theta
k=θ
K-1+ π.Make the position angle of positive hobboing cutter in placement process, satisfy simultaneously | θ
k-θ
K-1| 〉=θ
dWith | θ
K+1-θ
k| 〉=θ
d
(6), set up the automation solving model of hobboing cutter Layout Problem on the cutterhead according to tunnel geology condition, construction requirement, cutterhead overall technology performance requirement and rice font structure;
(7) former hobboing cutter Layout Problem is decomposed into positive hobboing cutter and arranges subproblem and limit hobboing cutter layout subproblem, adopt Shuangzi problem Cooperative Evolutionary to determine the position of all limit hobboing cutters.
2 a kind of full face rock tunnel boring machine hobboing cutter rice font structure method for arranging as claimed in claim 1, it is characterized in that, according to tunnel geology condition, construction requirement, cutterhead overall technology performance requirement and assembly technology requirement, set up the automation solving model of hobboing cutter Layout Problem on the cutterhead in the described step (5);
Ask hobboing cutter layout design scheme X ∈ R on the cutterhead
3n
s.t.
Do not interfere requirement:
The broken in turn rock of adjacent hobboing cutter requires:
Barycenter distributes and requires:
g
4(X，U
I)＝|x
m-x
e|-δx
e≤0
g
5(X，U
I)＝|y
m-y
e|-δy
e≤0
Cutterhead manhole, slag notch require:
In the formula, f
1(X) the lateral force F that is subjected to for cutterhead
s, promptly these power formation joints are the plane concurrent force system at cutter rotary center.f
2(X) the carrier inertial force F that moves for hobboing cutter
e, direction is along the normal direction of hobboing cutter locus circle and be intersected in the centre of gyration of cutterhead, constitutes the plane concurrent force system, f
3(X) the vertical force F that is subjected to for all hobboing cutters
vResultant moment M to cutterhead centre of gyration o generation
v, Δ V
IjExpression hobboing cutter Cut
i, Cut
jThe interference volume, S
IjBe adjacent two hobboing cutter Cut
i, Cut
jThe cutter spacing, the machete spacing that [S] can fractured rock allows for hobboing cutter, (x
m, y
m) be the actual value of all hobboing cutter centroid positions on the cutterhead, (x
e, y
e) be the desired value of the overall centroid position of cutterhead, (δ x
e, δ y
e) be the allowable value of the overall centroid position error of cutterhead;
Represent that scum hole does not conflict mutually on manhole on each hobboing cutter and the cutterhead and the cutterhead.
The 3 automation solving models as hobboing cutter Layout Problem on claim 1 or the described cutterhead of claim 2 is characterized in that, according to multimodal, discontinuous, non-linear, the multiobject characteristics that hobboing cutter is arranged the automation solving model, adopt Cooperative Evolutionary to find the solution; A columniform arrangement space is arranged on the cutter head structure, arrange different cutters according to function in the arrangement space, cutter according to type can be divided into center hobboing cutter, positive hobboing cutter, limit hobboing cutter, all kinds of cutters are according to the functional structure difference, and the Force Calculation mode is also different, carry out the coevolution subproblem according to the function of cutter and decompose, difference according to tool category, be divided into two subproblems, first subproblem is that positive hobboing cutter is arranged subproblem, and second subproblem arranged subproblem for the limit hobboing cutter; Positive hobboing cutter position determines that by the rice font structure give a sub-group to second subproblem, two sub-groups are worked in coordination with and found the solution, and obtain hobboing cutter position, limit in first subproblem.
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|---|---|---|---|
| CN 200910187788 CN101672184B (en) | 2009-09-30 | 2009-09-30 | Rice character type structure arrangement method of hobs of full section rock digging machine |
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| CN102889086A (en) * | 2012-09-26 | 2013-01-23 | 华北电力大学 | Full-section tunneling machine for changing connecting radius between cutter head and rotary support |
| CN103233744A (en) * | 2013-04-07 | 2013-08-07 | 大连理工大学 | Design method for support ribs of ballast slipping plate of cutter head of full face rock tunnel boring machine |
| CN103397890A (en) * | 2013-08-19 | 2013-11-20 | 中交天和机械设备制造有限公司 | Locating device for mounting hobs of shield tunneling machine, and using method of locating device |
| CN104653193A (en) * | 2014-12-22 | 2015-05-27 | 天津大学 | Energy theory-based prediction method for stress of TMB (tunnel boring machine) disk hob |
| CN105673030A (en) * | 2016-03-01 | 2016-06-15 | 华北电力大学 | Method for improving rigidity of discontinuous cutterhead of full-face tunnel boring machine and curved surface cutterhead |
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