CN115369732B - Method for arranging cutters of crushing device and crushing device - Google Patents
Method for arranging cutters of crushing device and crushing device Download PDFInfo
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- CN115369732B CN115369732B CN202210813928.6A CN202210813928A CN115369732B CN 115369732 B CN115369732 B CN 115369732B CN 202210813928 A CN202210813928 A CN 202210813928A CN 115369732 B CN115369732 B CN 115369732B
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims description 74
- 239000000463 material Substances 0.000 claims description 41
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 17
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
- E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
- E01C23/127—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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Abstract
The application relates to a method for arranging cutters of a crushing device and the crushing device. The arrangement method of the cutters of the crushing device comprises the following steps: providing a crushing device, wherein the crushing device comprises a rotating body and a plurality of cutters arranged on the peripheral surface of the rotating body, and the cutters are distributed in a plurality of spiral lines; determining the distance T between two adjacent cutters in the axial direction of the rotor 0 The method comprises the steps of carrying out a first treatment on the surface of the According to the distance T 0 Calculating the number S of cutters 0 The method comprises the steps of carrying out a first treatment on the surface of the Determining the number L of spiral lines n The method comprises the steps of carrying out a first treatment on the surface of the Judging the number S of cutters 0 Whether or not it is the number of spiral lines L n Integer multiples of (2); if so, according to the distance T 0 Determining the position of the cutter in the axial direction of the rotating body; if not, then first according to the formula s=l n *int(S 0 /L n ) For the number S of cutters 0 Correcting to obtain the number S of the cutters, and calculating adjacent cutters according to the number S of the cuttersAnd determining the axial position of the cutters according to the interval T. The cutters of the crushing device are arranged by adopting the arrangement method of the cutters of the crushing device.
Description
Technical Field
The application relates to the technical field of engineering machinery, in particular to a method for arranging cutters of a crushing device and the crushing device.
Background
With development of construction and maintenance work of traffic facilities such as roads, subways, tunnels and the like in China, underground excavation, mountain tunnel tunneling and highway repairing and maintenance work are increasingly expanded, wherein brittle engineering media such as underground rocks, mountain bodies, highway pavements and the like are inevitably subjected to milling and crushing, the crushing process is usually completed by a rotating device composed of a plurality of groups of milling and crushing cutters, the arrangement design of the milling and crushing cutters on the market is mostly dependent on experience, in particular, the key parameter of the cutter spacing is usually simply designed into an arithmetic array, however, the size of the cutter spacing is related to the milling and crushing effect on one hand, on the other hand, the cost and construction economy of the milling and crushing device are related, and the unreasonable cutter arrangement design can cause the problems of incomplete milling and crushing, high cutter construction cost and the like in the construction process.
It should be noted that the information disclosed in the background section of the present application is only for increasing the understanding of the general background of the present application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The application provides a method for arranging cutters of a crushing device and the crushing device, which can adjust the spacing of the cutters according to different working conditions and improve the rationality of cutter arrangement.
According to one aspect of the present application, there is provided a method of arranging cutters of a crushing device, comprising:
providing a crushing device, wherein the crushing device comprises a rotating body and a plurality of cutters arranged on the peripheral surface of the rotating body, and the cutters are distributed in a plurality of spiral lines;
determining the distance T between two adjacent cutters in the axial direction of the rotor 0 ；
According to the distance T 0 Calculating the number S of cutters 0 ；
Determining the number L of spiral lines n ；
Judging the number S of cutters 0 Whether or not it is the number of spiral lines L n Integer multiples of (2);
if so, according to the distance T 0 Determining the position of the cutter in the axial direction of the rotating body;
if not, then first according to the formula s=l n *int(S 0 /L n ) For the number S of cutters 0 And correcting to obtain the number S of the cutters, calculating the distance T between two adjacent cutters in the axial direction of the rotating body according to the number S of the cutters, and determining the position of the cutters in the axial direction of the rotating body according to the distance T.
In some embodiments, the spacing T of two adjacent cutters in the axial direction of the rotor is determined 0 The operation of (1) comprises: calculating the actual milling thickness T of the crushing device according to the preset working parameters of the crushing device h The method comprises the steps of carrying out a first treatment on the surface of the If the thickness T is actually milled h Smaller than the first constant M, the distance T is calculated according to a first formula 0 The method comprises the steps of carrying out a first treatment on the surface of the If the thickness T is actually milled h If the first constant M is greater than or equal to the first constant M and less than or equal to the second constant N, calculating the distance T according to a second formula 0 The method comprises the steps of carrying out a first treatment on the surface of the If the thickness T is actually milled h If the distance T is larger than the second constant N, calculating the distance T according to a third formula 0 。
In some embodiments, the preset operating parameters include a rotational speed n, an advance speed v, a milling depth H and a milling diameter D, and the actual milling thickness T of the crushing device is calculated from the preset operating parameters of the crushing device h The operation of (1) comprises: according to the formulaCalculate T h Wherein->
In some embodiments, the resulting spacing T is calculated according to a second formula 0 The value of (2) is greater than the spacing T calculated according to the first formula 0 And is smaller than the distance T calculated according to the third formula 0 Is a value of (2).
In some embodiments, the first formula is T 0 ＝K t Wherein K is t For the milling width of the tool.
In some embodiments, the second formula isWherein A, B and C are both constants.
In some embodiments, the third formula isWherein K is t For milling width of tool, T p For the maximum effective breakout depth of the material being milled, β is the effective breakout angle of the material being milled.
In some embodiments, according to the spacing T 0 Calculating the number S of cutters 0 The operation of (1) comprises: according to formula S 0 ＝int(W d /T 0 ) Calculating the number S of cutters 0 ，W d For the milling width of the crushing device.
In some embodiments, the number of spirals L is determined n The operation of (1) comprises: determining the phase angle Q occupied by the single spiral in the circumferential direction of the rotor; according to formula L n * Q=m×360° determines L n M is an integer greater than 0.
In some embodiments, the method of arranging a breaker tool further comprises: if the number of cutters S 0 Is the number L of spiral lines n Is according to the number S of cutters 0 Calculating the circles of two adjacent cutters in the circumferential direction of the rotorZhou ChajiaoAnd is according to the circumference difference angle->Determining the position of the cutter in the circumferential direction of the rotor; if the number of cutters S 0 Not the number of spiral lines L n Calculating the circumferential difference angle ++of two adjacent cutters in the circumferential direction of the rotor based on the number S of cutters>And according to the circumferential difference angleThe position of the tool in the circumferential direction of the rotor is determined.
In some embodiments of the present application, in some embodiments,
according to another aspect of the application, a crushing device is provided, the cutters of which are arranged using the arrangement method of the crushing device cutters described above.
Based on the technical scheme, the application provides a method for arranging cutters of a crushing device, which comprises the steps of firstly determining the distance between two adjacent cutters in the axial direction of a rotating body, then calculating the number of the cutters according to the distance, correcting the number of the cutters according to the number of spiral lines, further determining the final distance between the two adjacent cutters in the axial direction of the rotating body, and adjusting the distance between the cutters according to different working conditions to obtain the optimal cutter distance, so that the crushing effect of the crushing device is ensured, and the construction adaptability of the crushing device is improved; the distance between the cutters is corrected based on the relation between the number of the spiral lines and the number of the cutters, so that the layout of the cutters can be further rationalized, and the crushing device can be conveniently produced and processed. Through increasing the correction steps to cutter quantity, can also satisfy customer's customization demand, realize the quick response to breaker customer's customization demand.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIGS. 1a and 1b show a front view and a left view, respectively, of an embodiment of a crushing device according to the application;
FIG. 2 shows a flow chart of determining the cutter spacing and the number of cutters in one embodiment of a method of arranging cutters of a crushing device of the present application;
FIG. 3 shows a schematic view of the cutter spacing and material breakup effect in one embodiment of the crushing apparatus of the present application;
FIG. 4 shows a schematic view of the actual milling thickness of a tool in an embodiment of the crushing device of the present application;
FIG. 5 shows a flow chart of a knife arrangement in one embodiment of a method of arranging knives of a crushing device of the present application;
FIG. 6 shows a schematic view of the arrangement position of the cutters in an embodiment of the inventive breaker cutter arrangement method;
FIG. 7 shows a schematic view of the structure of an embodiment of the crushing device of the present application;
FIGS. 8a, 8b and 8c show three modes of movement, respectively, of an embodiment of the crushing device of the present application;
in the figure:
1. a rotating body; 2. a cutter.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present application.
As shown in fig. 1, in some embodiments of the crushing apparatus provided by the present application, the crushing apparatus includes a rotor 1 and a plurality of cutters 2 disposed on an outer circumferential surface of the rotor 1, the plurality of cutters 2 are arranged in a plurality of spiral lines, and a milling width and a milling diameter of the crushing apparatus are respectively shown as W d And D.
In some embodiments, the inventive method of arranging cutters of a crushing device comprises:
determining the distance T between two adjacent tools 2 in the axial direction of the rotor 1 0 ；
According to the distance T 0 Calculating the number S of cutters 2 0 ；
Determining the number L of spiral lines n ；
Judging the number S of cutters 0 Whether or not it is the number of spiral lines L n Integer multiples of (2);
if so, according to the distance T 0 Determining the position of the tool 2 in the axial direction of the rotor 1;
if not, then first according to the formula s=l n *int(S 0 /L n ) For the number S of cutters 0 The correction is performed to obtain the number of cutters S, the distance T between two adjacent cutters 2 in the axial direction of the rotor 1 is calculated according to the number of cutters S, and the position of the cutter 2 in the axial direction of the rotor 1 is determined according to the distance T.
As shown in FIG. 2, at a distance T according to the cutter 0 Preliminary determination of the number S of cutters 0 After that, the number of tools q=s is determined 0 /L n Whether or not it is an integer, if it is not an integer, thenFirstly rounding q, then recalculating the number S of the cutters, and calculating the final spacing T of the cutters. Thus, the distance T between the cutters is preliminarily determined 0 Through the number S of cutters 0 And number of spiral lines L n Distance T between tools 0 The method for correcting to obtain the final spacing T of the cutters can realize the adjustment of the spacing of the cutters according to different working conditions to obtain the optimal cutter spacing and rationalize the layout of the cutters, thereby being convenient for producing and processing the crushing device, ensuring the crushing effect of the crushing device, improving the construction adaptability of the crushing device, meeting the customization demands of customers and realizing the quick response to the customization demands of the crushing device.
In the actual operation process, for different engineering medium materials and milling depths, material caving conditions caused by cutters of the crushing device in the milling crushing process are different, wherein the milling thickness has a large influence on the material caving conditions, so that in order to fully utilize the caving effect of the materials to obtain a good milling crushing effect, the distance between the cutters needs to be calculated based on the milling thickness under different working conditions.
In some embodiments, the spacing T of two adjacent tools 2 in the axial direction of the rotor 1 is determined 0 The operation of (1) comprises: calculating the actual milling thickness T of the crushing device according to the preset working parameters of the crushing device h The method comprises the steps of carrying out a first treatment on the surface of the If the thickness T is actually milled h Smaller than the first constant M, the distance T is calculated according to a first formula 0 The method comprises the steps of carrying out a first treatment on the surface of the If the thickness T is actually milled h If the first constant M is greater than or equal to the first constant M and less than or equal to the second constant N, calculating the distance T according to a second formula 0 The method comprises the steps of carrying out a first treatment on the surface of the If the thickness T is actually milled h If the distance T is larger than the second constant N, calculating the distance T according to a third formula 0 。
The first constant M and the second constant N are related to the physical properties of engineering medium materials, and can be obtained through milling tests with different milling depths and different cutter intervals, and in general, the value range of the first constant M is 3-5 mm, and the value range of the second constant N is 30-40 mm.
By the method, the thickness is actually milledUnder the condition of different Th, different calculation modes are adopted to determine the distance T between two adjacent cutters 2 0 The optimal distance T of the cutter 2 under the corresponding working condition can be obtained 0 So as to fully utilize the caving effect of the materials, thereby greatly improving the adaptability of the crushing device to different working conditions and improving the crushing effect of the crushing device.
The inventor finds that when the cutter spacing is designed too large, the problem that part of materials between cutters cannot be removed can occur, and when the cutter spacing is designed too small, repeated crushing can be formed, so that the power waste of a host machine is caused; furthermore, the inventors have found through experiments that when actually milling the thickness T h Very small time (i.e. T h < M), the breakout effect of the material is negligible, and the tools should be arranged densely to ensure the milling effect; while actually milling the thickness T h Smaller (i.e. M.ltoreq.T) h N), actual milling thickness T h The larger the material collapse, the larger the material collapse range, and the spacing T of the tools should be correspondingly set 0 Are set larger to fully utilize the caving effect of the material; when actually milling thickness T h When larger (i.e. T h > N), only the material of the upper surface portion is chipped, the material in the deeper portion is not chipped substantially, i.e. the spacing T of the tools 0 There is a maximum beyond which the collapse range of the material is not substantially altered.
Based on the above considerations, in some embodiments, the resulting spacing T is calculated according to a second formula 0 The value of (2) is greater than the spacing T calculated according to the first formula 0 And is smaller than the distance T calculated according to the third formula 0 Is a value of (2).
That is, when designing the arrangement scheme of the cutters, not only the interval between the cutters is prevented from being set too small or too large, but also the influence of the interval between the cutters on the material collapse condition should be fully considered, so that the material collapse effect is fully utilized, and the material removal rate is ensured while the power waste of the host machine is reduced as much as possible.
As shown in fig. 3, the spacing between two adjacent tools 2 is shown as T, with the spacing T being the final determined two adjacent tools 2The distance between the two pairs of the distances T 0 The numerical value obtained after correction is carried out; the milling width of the tool 2 is shown as K t The maximum effective breakout depth of the milled material is shown as T p The effective breakout angle of the milled material is shown as beta.
In some embodiments, the first formula is T 0 ＝K t Wherein K is t For the milling width of the tool 2.
I.e. when T h When < M, the caving effect of the material is negligible, the spacing T is then calculated 0 Set to milling width K with tool 2 t Equal, can guarantee the abundant breakage of material.
In some embodiments, the second formula isWherein A, B and C are both constants.
I.e. when M is less than or equal to T h When N is less than or equal to N, the actual milling thickness T h The larger the material breakout range is, the more the material breakout effect should be fully utilized, with the milling thickness T h Correspondingly increasing the distance T between the tools 2 0 Is set larger to reduce the number of cutters 2 under the condition of ensuring that the material between adjacent cutters 2 has higher removal rate, thereby reducing the processing cost and the construction maintenance cost of the crushing device and also reducing the waste of the power of a host machine. Wherein A, B and C are related to the physical properties of the engineering medium material, and can be obtained through milling tests with different milling depths and different cutter pitches.
In some embodiments, the third formula isWherein K is t For milling the width, T, of the tool 2 p For the maximum effective breakout depth of the material being milled, β is the effective breakout angle of the material being milled.
As shown in FIG. 3, when T h At > N, it can be seen that only the upper surface portion of the material has a breakout with a depth T p The material at the deeper part is basicallyDoes not collapse, i.e. the collapse range of the material does not follow the distance T of the tool 0 To avoid the problem that the distance between the tools is too large to remove part of the material, the distance T can be calculated by the third formula 0 Is limited by the value of (2). Wherein the maximum effective breakout depth T p And the effective breakout angle beta is related to the physical properties of the engineering medium material itself and can be obtained through milling tests with different milling depths and different cutter pitches.
In some embodiments, the preset operating parameters include a rotational speed n, an advance speed v, a milling depth H and a milling diameter D, and the actual milling thickness T of the crushing device is calculated from the preset operating parameters of the crushing device h The operation of (1) comprises: according to the formulaCalculate T h Wherein->
As shown in fig. 4, during operation of the crushing device, the movement of the tool 2 is a combined movement of a rotational movement and a horizontal movement, and the distance between the two milling envelopes (shown as two arcs in the figure) of the tool 2 shown in fig. 4 is the actual milling thickness T obtained after one revolution of the rotor 1 of the crushing device h The actual milling thickness T of the crushing device can be calculated by only knowing the parameters of the rotation speed n, the advancing speed v, the milling depth H, the milling diameter D and the like of the crushing device under different working conditions h The size of the crushing device is designed to further design a cutter arrangement scheme under corresponding working conditions, so that the adaptability of the crushing device to different working conditions is improved. The rotation speed n and the advancing speed v are motion parameters of the crushing device determined based on the performance of the main machine, and the milling depth H and the milling diameter D are determined according to the actual construction operation requirements.
In order to obtain a guaranteed smooth running of the milling and crushing process of the crushing device, the cutters 2 should be arranged as evenly as possible in the axial direction of the rotor 1.
Thus, in some embodiments, according to the spacing T 0 Calculating the number S of cutters 2 0 The operation of (1) comprises: according to formula S 0 ＝int(W d /T 0 ) Calculating the number S of cutters 0 ，W d For the milling width of the crushing device.
Wherein the milling width W of the crushing device d Is determined according to the actual construction operation requirement, and the formula S 0 ＝int(W d /T 0 ) For milling width W d And a distance T 0 Is rounded to obtain the number S of cutters as an integer 0 So as to improve the operability of the tool 2 when actually arranged.
In some embodiments, the number of spirals L is determined n The operation of (1) comprises: determining the phase angle Q taken up by a single spiral in the circumferential direction of the rotor 1; according to formula L n * Q=m×360° determines L n M is an integer greater than 0.
Such an arrangement ensures that the plurality of spiral lines are evenly arranged in the circumferential direction of the rotor 1, which contributes to an improvement in the construction quality of the crushing device. In some embodiments, the number of spirals L n The value of (2) is usually 2-4, and can be adjusted according to different working conditions.
In order to further increase the stability of the milling crushing process of the crushing device and the uniformity of the final crushing effect, the cutters 2 should also be arranged as evenly as possible in the circumferential direction of the rotor 1.
Thus, in some embodiments, the method of arranging a breaker tool further comprises: if the number of cutters S 0 Is the number L of spiral lines n Is according to the number S of cutters 0 Calculating the circumferential difference angle of two adjacent cutters 2 in the circumferential direction of the rotor 1And is according to the circumference difference angle->Determining the position of the tool 2 in the circumferential direction of the rotor 1Placing; if the number of cutters S 0 Not the number of spiral lines L n Calculating the circumferential difference angle +_of two adjacent cutters 2 in the circumferential direction of the rotor 1 based on the number S of cutters>And is according to the circumference difference angle->The position of the tool 2 in the circumferential direction of the rotor 1 is determined.
In some embodiments of the present application, in some embodiments,
the working of an embodiment of the method for arranging cutters of a crushing device according to the application is described below:
as shown in fig. 1a and 1b, a crushing device is provided, which comprises a rotor 1 and a plurality of cutters 2.
Fig. 5 shows the steps of arranging the cutters using the inventive method of arranging cutters of the crushing device.
Firstly, determining related parameters according to milling and crushing working conditions, and calculating the actual milling thickness T of a cutter h . Determining milling depth H according to construction operation requirements, and setting basic structural parameters (milling width W of the crushing device d Milling diameter D, etc.), the rotational speed n and the forward speed v of the crushing device are determined from the properties of the main machine. Calculating the actual milling thickness T of the cutter through the geometric relation among the parameters h ：
Wherein, the liquid crystal display device comprises a liquid crystal display device,
secondly, calculating the optimal cutter spacing T according to the milling caving effect of the brittle engineering medium material 0 . The crushing device is generally used for crushing brittle engineering media, such as highway pavement, underground rock, mountain bodies and the like, and after determining construction work objects, the construction work objects are subjected to the process according to the maximum effective caving depth T of the corresponding engineering media material p And an effective breakout angle beta, in combination with the actual milling thickness T of the tool 2 obtained above h Calculating the optimal cutter spacing T 0 ：
T 0 ＝K t (T h ＜M)
The value range of the first constant M is usually 3-5 mm, and the value range of the second constant N is usually 30-40 mm.
Then, according to the criterion that the spirals are uniformly distributed in the circumferential direction of the rotor 1, the circumferential angle Q occupied by a single spiral is calculated:
L n *Q＝m*360°
wherein L is n The value of (2) is usually 2 to 4, and m is an integer greater than 0.
Next, the milling width W is set according to the criterion that the tools 2 are uniformly distributed in the axial direction of the rotor 1 d And the above-mentioned interval T 0 The ratio of the cutting tools to the crushing device is subjected to rounding operation, and the number S of the cutting tools of the crushing device is determined 0 ：
S 0 ＝int(W d /T 0 )
If the number of cutters S 0 Is the number L of spirals determined in the above step n Is according to the distance T 0 Determining the position of the tool 2 in the axial direction of the rotor 1;
if the number of cutters S 0 Not the number L of spirals determined in the above step n According to s=l n *int(S 0 /L n ) Recalculating the number of tools after correctionAnd (3) calculating the quantity S to obtain the final cutter spacing T:
T＝W d /S
and determines the position of the tool 2 in the axial direction of the rotor 1 based on the pitch T.
Further, according to the criterion that the tools 2 are uniformly distributed in the circumferential direction of the rotating body 1, the circumferential difference angle between the adjacent two tools 2 is calculated:
or (b)
Finally, a plurality of cutters 2 are arranged according to the above calculated parameters.
As shown in fig. 6, the rotor 1 is spread in the circumferential direction, the direction Z is the axial direction of the rotor 1, and the direction θ is the circumferential direction of the rotor 1. The plurality of cutters 2 are arranged in a spiral line form according to the principle of being uniformly arranged in the circumferential direction and being uniformly arranged in the axial direction.
The process of arranging the cutters 2 on each spiral line is as follows: based on the number L of spiral lines n Dividing the rotor 1 equally in the circumferential direction, determining the circumferential position of the start of each spiral, according to the distance T between two adjacent tools 2 0 Or T, and calculating the axial position Z of the jth cutter 2 on the ith spiral line in combination with the spiral line serial number j According to the circumferential difference angle between two adjacent tools 2Or->And calculating the circumferential position theta of the jth tool 2 on the ith spiral line by combining the spiral line serial numbers j According to (Z) j ，θ j ) Each tool 2 is arranged with respect to its position coordinates.
By way of illustration of several embodiments of the inventive breaker tool arrangement, it can be seen that the inventive breaker tool arrangement has at least the following advantages:
1. the arrangement method of the cutters of the crushing device comprises the process of correcting the number of the cutters and the spacing of the cutters, and can realize the adjustment of the spacing of the cutters according to different working conditions so as to obtain the optimal spacing of the cutters, rationalize the layout of the cutters and facilitate the production and the processing of the crushing device;
2. the arrangement method of the cutters of the crushing device is based on the milling depth, the rotation speed, the advancing speed and other working parameters of the crushing device, and combines the physical properties of engineering medium materials to obtain the optimal cutter spacing, so that the number of the cutters can be reduced under the condition that the material between adjacent cutters has higher removal rate, the processing cost and the construction maintenance cost of the crushing device are reduced, the waste of the power of a host machine is also reduced, the customized design of the crushing device is realized, the quick response of the customized requirement of the crushing device is realized, and the problem of poor construction adaptability of the crushing device in the related technology is solved;
3. according to the arrangement method of the cutters of the crushing device, the plurality of cutters are arranged on the peripheral surface of the rotating body along the spiral line based on the distance and the circumference difference angle between the cutters, so that the plurality of cutters are uniformly arranged in the circumferential direction and the axial direction of the rotating body, the problem of rapid and uniform arrangement of the cutters of the crushing devices with different widths can be solved, and the stability and the uniformity of the construction operation process of the crushing device can be ensured.
Based on the arrangement method of the cutters of the crushing device, the application also provides a crushing device, and the cutters of the crushing device are arranged by adopting the arrangement method of the cutters of the crushing device. The structure of the crushing device of the application can be in various forms, and can be cylindrical as shown in fig. 1a and 1b, or cylindrical+conical as shown in fig. 7; as shown in fig. 8, the movement mode of the crushing device in the milling and crushing process can be horizontal advance, vertical downward, transverse movement and the like, and the crushing device can be adjusted according to actual construction requirements.
The positive technical effects of the method for arranging cutters of the crushing device in the above embodiments are also applicable to the crushing device, and are not described herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications and equivalents of the features disclosed herein may be made to the specific embodiments of the application or to parts of the features may be substituted without departing from the principles of the application, and such modifications and equivalents are intended to be encompassed within the scope of the application as claimed.
Claims (9)
1. A method of arranging cutters of a crushing device, comprising:
the method comprises the steps of providing a crushing device, wherein the crushing device comprises a rotating body (1) and a plurality of cutters (2) arranged on the peripheral surface of the rotating body (1), and the cutters (2) are in a plurality of spiral line arrangement;
determining the distance T between two adjacent cutters (2) in the axial direction of the rotor (1) 0 ；
According to the distance T 0 Calculating the number S of cutters (2) 0 ；
Determining the number L of spiral lines n ；
Judging the number S of the cutters 0 Whether or not the number of spiral lines is L n Integer multiples of (2);
if yes, according to the distance T 0 Determining the position of the tool (2) in the axial direction of the rotor (1);
if not, then first according to the formula s=l n *int(S 0 /L n ) For the number S of the cutters 0 Correcting to obtain the number S of the cutters, calculating the distance T between two adjacent cutters (2) in the axial direction of the rotating body (1) according to the number S of the cutters, and determining the position of the cutters (2) in the axial direction of the rotating body (1) according to the distance T.
2. A method of arranging cutters of a crushing device according to claim 1, characterized in that the spacing T of adjacent two of the cutters (2) in the axial direction of the rotor (1) is determined 0 The operation of (1) comprises:
calculating the actual milling thickness T of the crushing device according to the preset working parameters of the crushing device h ；
If the actual milling thickness T h Smaller than the first constant M, the distance T is calculated according to a first formula 0 ；
If the actual milling thickness T h The distance T is calculated according to a second formula when the distance T is larger than or equal to a first constant M and smaller than or equal to a second constant N 0 ；
If the actual milling thickness T h Greater than a second constant N, the spacing T is calculated according to a third formula 0 ；
The value range of the first constant M is 3-5 mm, and the value range of the second constant N is 30-40 mm;
the first formula is T 0 ＝K t ；
The second formula is
The third formula is
Wherein K is t For the milling width, T, of the tool (2) p For the maximum effective breakout depth of the milled material, β is the effective breakout angle of the milled material, and A, B and C are both constants.
3. A method of arranging cutters of a crushing device according to claim 2, characterized in that the distance T is calculated according to the second formula 0 Is greater than the distance T calculated according to the first formula 0 And is smaller than the pitch calculated according to the third formulaT 0 Is a value of (2).
4. Method for arranging a breaker tool according to claim 2, characterized in that the preset operating parameters comprise a rotational speed n, a forward speed v, a milling depth H and a milling diameter D, from which the actual milling thickness T of the breaker is calculated h The operation of (1) comprises:
according to the formulaCalculate T h Wherein->
5. A method of arranging cutters of a crushing device according to claim 1, characterized in that, according to the spacing T 0 Calculating the number S of cutters (2) 0 The operation of (1) comprises:
according to formula S 0 ＝int(W d /T 0 ) Calculating the number S of the cutters 0 Wherein W is d For the milling width of the crushing device.
6. Method for arranging cutters of a crushing device according to claim 1, characterized in that the number of spirals L is determined n The operation of (1) comprises:
determining the phase angle Q occupied by a single spiral in the circumferential direction of the rotor (1);
according to formula L n * Q=m×360° determines L n Wherein m is an integer greater than 0.
7. The method of arranging cutters of a crushing device according to claim 1, further comprising:
if the number S of the cutters is 0 Is the number L of the spiral lines n Is according to the number S of the cutters 0 Calculation ofThe circumferential difference angle of two adjacent cutters (2) in the circumferential direction of the rotating body (1)And according to said circumference difference angle +.>Determining the position of the tool (2) in the circumferential direction of the rotor (1);
if the number S of the cutters is 0 Not the number L of spiral lines n Calculating the circumferential difference angle of two adjacent cutters (2) in the circumferential direction of the rotor (1) according to the number S of cuttersAnd according to said circumference difference angle +.>The position of the tool (2) in the circumferential direction of the rotor (1) is determined.
8. A method of arranging a breaker tool according to claim 7, characterized in that,
9. a crushing device, characterized in that the cutters of the crushing device are arranged using the arrangement method of the cutters of the crushing device according to any one of claims 1-8.
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