Anchor lip design method and anchor lip

Abstract

The present invention belongs to the technical field of anchor lip design and discloses an anchor lip design method and an anchor lip. The anchor lip design method proposed in the present invention is simple and effective, effectively resolving issues such as the anchor lip being stuck or the anchor not fitting properly when tightened. Anchor lips designed using this anchor lip design method can be directly manufactured without requiring verification of their correctness through wooden mold pull tests. This comprehensive and effective method is suitable for designing anchor lips for high-holding anchors. The anchor lip designed using this method ensures good fit between the anchor and the anchor lip, making it less susceptible to anchor sticking.

Description

Technical Field

[0001] The present invention relates to the technical field of anchor lip design, and in particular to an anchor lip design method and an anchor lip. Background Art

[0002] When anchored at anchorages, harbors, or sheltered waters, ships must heave and drop anchor. If the anchor lip becomes stuck during this process, it can seriously impact the vessel's safety. If the anchor does not properly fit the lip after heaving and tightening, the anchor can vibrate violently and collide with the vessel during navigation, damaging the hull structure and creating danger. The anchor lip is the structure in direct contact with the anchor, and its size and shape directly determine the effectiveness of heaving and dropping anchor. Therefore, to ensure vessel safety, the design of the anchor lip must be given high priority.

[0003] Currently, the theory behind anchor lip design in the shipbuilding industry is relatively crude. There is no complete, simple, and effective anchor lip design method, nor are there relevant design standards and specifications. Typically, designers design anchor lip designs based on their own experience and intuitive understanding. They then create a wooden model of the design at a certain scale to conduct anchor-pulling tests. Finally, based on the results of the wooden model anchor-pulling tests, the installation position and shape of the anchor lip are verified, corrected, and optimized. This process is repeated repeatedly until the ideal anchor-pulling test results are achieved, ensuring the proper function of the anchor lip on the actual ship. However, existing anchor lip design methods cannot avoid problems such as the anchor lip getting stuck in the anchor and the anchor not fitting properly with the lip. Therefore, developing a complete, simple, and effective anchor lip design method is crucial. Summary of the Invention

[0004] The object of the present invention is to provide an anchor lip design method and an anchor lip, so as to solve the problems in the traditional design method that the anchor lip is stuck to the anchor and the anchor and the anchor lip cannot fit well.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In one aspect, a method for designing an anchor lip is provided, comprising the following steps:

[0007] Step S1: Draw a vertical section of the anchor chain barrel on paper based on its position and actual size in the anchor equipment plan layout. The angle between the centerline of the anchor chain barrel and the vertical direction is recorded as the anchor lip installation angle θ. The radius of the anchor chain barrel is R.

[0008] Step S2: determining the shape and size parameters of the lower and upper ends of the anchor lip, and drawing vertical sections of the lower and upper ends of the anchor lip on the vertical section of the anchor chain barrel, respectively. Note that the angles between the outer edge of the upper end of the anchor lip and the inner edge of the upper end of the anchor lip and the vertical direction are angles α and γ, respectively; and the angles between the outer edge of the lower end of the anchor lip and the inner edge of the lower end of the anchor lip and the vertical direction are angles β and δ, respectively.

[0009] Step S3, in the front view of the anchor lip, draw an anchor lip inner contour line A, an anchor lip outer contour line B, and an anchor lip top tangent point line C according to the shape and size parameters of the anchor lip lower opening and the anchor lip upper opening;

[0010] Step S4: Taking the center of the inner contour line A of the anchor lip as the rotation center, draw the cross-sectional shape of the anchor lip on the front view of the anchor lip.

[0011] Optionally, in step S4, the cross-sectional shape of the anchor lip in the horizontal direction is further obtained, which specifically includes the following steps:

[0012] Step S40: Draw a vertical cross-sectional line DC on the front view of the anchor lip;

[0013] Step S41: Draw a horizontal section line DS on the anchor lip front view with the center of the anchor lip inner contour line A as a reference, and mark the intersection points of the horizontal section line DS and the anchor lip top tangent point line C as intersection points E0 and E1 respectively;

[0014] Step S42: Draw a horizontal line through the intersection E0 and the intersection E1 toward the anchor lip cross-section to obtain line segments H0 and H1;

[0015] Step S43, using the lengths of the line segments H0 and H1 as intervals, respectively draw parallel lines P0 and P1 parallel to the horizontal cross-sectional line DS;

[0016] Step S44, calculate and obtain the outer edge angle G0=G1=(α+β) / 2 of the horizontal section line DS; and use the outer edge angle G0 and the outer edge angle G1 to draw an outer edge angle oblique line I0 and an outer edge angle oblique line I1 on the horizontal section line DS; take the inner edge angle M0 and the inner edge angle M1 of the horizontal section line DS as 90° respectively, and use the inner edge angle M0 and the inner edge angle M1 to draw an inner edge angle oblique line F0 and an inner edge angle oblique line F1 on the horizontal section line DS; the outer edge angle oblique line I0, the inner edge angle oblique line F0, the parallel line P0 and the horizontal section line DS enclose a trapezoidal surface J0; the outer edge angle oblique line I1, the inner edge angle oblique line F1, the parallel line P1 and the horizontal section line DS enclose a trapezoidal surface J1;

[0017] An inscribed arc S0 is formed by the outer edge angle line I0, the inner edge angle line F0, and the parallel line P0. The two ends of the inscribed arc S0 are tangent to the outer edge angle line I0 and the inner edge angle line F0 and extend along the outer edge angle line I0 and the inner edge angle line F0 respectively.

[0018] An inscribed arc S1 is formed by the outer edge angle oblique line I1, the inner edge angle oblique line F1 and the parallel line P1. The two ends of the inscribed arc S1 are tangent to the outer edge angle oblique line I1 and the inner edge angle oblique line F1 and extend in the directions of the outer edge angle oblique line I1 and the inner edge angle oblique line F1 respectively; the cross-sectional shape of the anchor lip at the horizontal section line DS coincides with the directions of the inscribed arc S0 and the inscribed arc S1 respectively.

[0019] Optionally, after step S44, the method further includes:

[0020] Step S45: A cross-sectional line D1 is formed by dividing the angle between the vertical cross-sectional line DC and the horizontal cross-sectional line DS, and intersections of the cross-sectional line D1 and the anchor lip top tangent point line C are recorded as intersection points E2 and E3 respectively;

[0021] Step S46: Draw horizontal lines through the intersection point E2 and the intersection point E3 toward the anchor lip cross-section to obtain line segments H2 and H3;

[0022] Step S47, using the lengths of the line segments H2 and H3 as intervals, respectively draw parallel lines P2 and P3 parallel to the cross-sectional line D1;

[0023] Step S48: Calculate and obtain the outer edge angle G2 = (α + G1) / 2 and the outer edge angle G3 = (β + G0) / 2 of the cross-section line D1, and use the outer edge angle G2 and the outer edge angle G3 to draw an outer edge angle oblique line I2 and an outer edge angle oblique line I3 on the cross-section line D1, respectively; calculate and obtain the inner edge angle M2 = (γ + M1) / 2 and the inner edge angle M3 = (δ + M0) / 2 of the cross-section line D1, and use the inner edge angle M2 and the inner edge angle M3 to draw an inner edge angle oblique line F2 and an inner edge angle oblique line F3 on the cross-section line D1, respectively;

[0024] The outer edge angle oblique line I2, the inner edge angle oblique line F2, the parallel line P2 and the cross-sectional line D1 form a trapezoidal surface J2; the outer edge angle oblique line I3, the inner edge angle oblique line F3, the parallel line P3 and the cross-sectional line D1 form a trapezoidal surface J3; inscribed arcs S2 and S3 are respectively made in the trapezoidal surface J2 and the trapezoidal surface J3; the inscribed arcs S2 and S3 coincide with the cross-sectional shape of the anchor lip 200.

[0025] Optionally, in step S1, the anchor lip installation angle θ is in the range of 40°≤θ≤45°.

[0026] Optionally, in step S2, the arc radius R1 of the lower end of the anchor lip is not less than 3 times the diameter of the anchor chain, and the height K1 of the lower end of the anchor lip is greater than 6 times the diameter of the anchor chain.

[0027] Optionally, in step S2, the arc radius R2 of the upper opening of the anchor lip and the contact point of the fluke are at a position L / 2.5-L / 3 from the fluke tip, where L is the length from the center of the anchor crown to the fluke tip.

[0028] Optionally, in step S2, the height K2 of the upper edge of the anchor lip is selected and designed according to the actual storage of the anchor on board, that is, when the anchor rod abuts against the upper edge of the anchor lip, the center of the anchor rod shackle cross pin needs to be at the center line of the anchor chain barrel.

[0029] Optionally, in step S3, the inner contour line A of the anchor lip is an ellipse, the minor axis size of the inner contour line A of the anchor lip is R, and the major axis size is 2R / sinθ.

[0030] Optionally, in step S3, the anchor lip outer contour line B and the anchor lip top tangent point line C are magnified ellipses of the anchor lip inner contour line A, and the magnification is obtained through the anchor lip cross-sectional view.

[0031] On the other hand, an anchor lip is provided, which is designed using the above-mentioned anchor lip design method.

[0032] Beneficial effects of the present invention:

[0033] The anchor lip design method proposed in the present invention is simple and effective, and can effectively solve the problems of the anchor lip being stuck or the anchor lip not being able to fit well with the anchor lip when tightened. The anchor lip designed using this anchor lip design method can be directly used in manufacturing, and there is no need to use a wooden mold anchor pulling test to verify its correctness. The method is complete and effective and is suitable for the design of anchor lips for high-holding-power anchors.

[0034] The anchor lip of the present invention is designed by the above method, and the anchor and the anchor lip fit well together, and the anchor jamming phenomenon is not likely to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a cross-sectional diagram of the theoretical storage position of the anchor in the traditional design method;

[0036] Figure 2 This is a cross-sectional diagram of the actual stowed position of the anchor in the actual ship state;

[0037] Figure 3 The vertical cross section of the anchor chain tube of the anchor lip according to the embodiment of the present invention is Figure 1;

[0038] Figure 4 This is the front view of the anchor lip of the embodiment of the present invention. Figure 1 ;

[0039] Figure 5 The vertical cross section of the anchor chain tube of the anchor lip according to the embodiment of the present invention is Figure 2 ;

[0040] Figure 6 This is the front view of the anchor lip of the embodiment of the present invention. Figure 2 .

[0041] In the picture:

[0042] 1. Anchor lip lower opening; 2. Anchor lip upper opening;

[0043] 100, anchor chain barrel; 200, anchor lip; 300, anchor chain; 400, anchor claw; 401, anchor rod; 402, anchor rod shackle cross pin. DETAILED DESCRIPTION

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0045] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In the description of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0048] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0049] In the prior art, the design method of the anchor lip is usually that the designer only relies on his own design experience and some perceptual knowledge to design the anchor lip, and often designs the anchor lip according to the theoretical storage position of the anchor (such as Figure 1 The anchor lip is designed in the stowed position where the center line of the anchor rod 401 overlaps the center line of the anchor chain tube 100. When the anchor is in the stowed position on the actual ship (the state when the anchor is tightened), the root of the anchor rod 401 presses against the upper end 2 of the anchor lip, and the center line of the anchor rod 401 does not overlap with the center line of the anchor chain tube 100. Figure 2 As shown, the traditional anchor lip design method is the main reason for the anchor lip to be stuck and the anchor cannot fit well with the anchor lip when tightening. In the traditional anchor lip design method, the contact point between the anchor claw 400 and the anchor lip 200 is usually at the tip of the anchor claw 400 (refer to Figure 1 ), which may easily cause the fluke 400 to break, and the traditional anchor lip design method does not take into account that the bending arc radius of the lower end 1 of the anchor lip will cause bending deformation and damage to the anchor chain 300. The reason for this incorrect design is that the designers lack actual ship operation experience.

[0050] To solve the above problems, the present invention provides an anchor lip design method. The design of the anchor lip 200 is optimized through mechanical drawing. This embodiment takes the AC-14 high-holding anchor as an example to analyze the performance and structural characteristics of the AC-14 high-holding anchor. The method specifically includes the following steps:

[0051] Step S1: Based on the position and actual size of the anchor chain barrel 100 in the anchor equipment plan layout, a vertical section of the anchor chain barrel 100 is drawn on paper. The angle between the centerline of the anchor chain barrel 100 and the vertical direction is recorded as the anchor lip installation angle θ, and the radius of the anchor chain barrel 100 is R.

[0052] It can be understood that the method of the present invention uses a mechanical drawing method to draw a vertical section of the anchor chain tube 100 on paper according to the position and actual size of the anchor chain tube 100 in the anchor equipment plan layout, such as Figure 3As shown in the left half, in this embodiment, the radius R of the anchor chain barrel 100 is a known value, which can be directly measured from the actual ship structure and drawn on the drawing in equal proportion or at a certain scale ratio; the value range of the anchor lip installation angle θ is 40°≤θ≤45°. The value range of the anchor lip installation angle θ is a summary of design experience obtained through long-term anchor pulling tests, and is preferably 45° in this embodiment.

[0053] Step S2, determining the shape and size parameters of the anchor lip lower opening 1 and the anchor lip upper opening 2, and drawing the cross sections of the anchor lip lower opening 1 and the anchor lip upper opening 2 on the cross section of the anchor chain tube 100, recording the angles α and γ between the outer edge of the anchor lip upper opening 2 and the inner edge of the anchor lip upper opening 2 and the vertical direction, respectively; recording the angles β and δ between the outer edge of the anchor lip lower opening 1 and the inner edge of the anchor lip lower opening 1 and the vertical direction, respectively;

[0054] In this step, Figure 3 The right half of the anchor lip 200 is drawn in the figure. For the shape and size parameters of the lower opening 1 of the anchor lip:

[0055] The arc radius R1 of the lower end 1 of the anchor lip is not less than 3 times the diameter of the anchor chain 300. The arc radius R1 is preferably 3.5-4 times the diameter of the anchor chain 300. This arc radius R1 ensures that when three anchor chains 300 pass through the lower end 1 of the anchor lip at the same time, the middle horizontal anchor chain 300 does not contact the anchor lip 200, thereby avoiding bending deformation and damage. The height K1 of the lower end 1 of the anchor lip is greater than 6 times the diameter of the anchor chain 300. The diameter of the anchor chain 300 is a known value and can be measured on the actual ship. According to the arc radius R1 and the height K1, a cross-sectional view of the lower end 1 of the anchor lip can be drawn, as shown in FIG. Figure 3 As shown; the angle between the outer edge of the lower opening 1 of the anchor lip and the vertical direction is angle β, the value of which is selected and determined according to the actual size of the anchor platform, and is 90° in this embodiment; the angle between the inner edge of the lower opening 1 of the anchor lip and the vertical direction is angle δ, and angle δ = angle θ, which is 45° in this embodiment; as for the shape and size parameters of the upper opening 2 of the anchor lip:

[0056] The arc radius R2 of the upper opening 2 of the anchor lip should be selected to ensure that the contact point between the upper opening 2 of the anchor lip and the anchor claw 400 is at the position L / 2.5-L / 3 from the tip of the anchor claw. L is the length from the center of the anchor crown to the tip of the anchor claw 400. L is a known parameter that can be measured on a real ship. Figure 2 At the same time, the height K2 of the anchor lip upper opening 2 must be designed according to the actual ship storage of the anchor, that is, when the anchor rod 401 abuts against the anchor lip upper opening 2, the center of the anchor rod shackle cross pin 402 must be at the center line of the anchor chain barrel 100, and the arc radius R2 and height K2 must meet the above conditions, which can be obtained through geometric calculation. According to the arc radius R2 and height K2, a cross-sectional view of the anchor lip upper opening 2 can be drawn, as shown in the figure. Figure 3As shown; the angle between the outer edge of the upper opening 2 of the anchor lip and the vertical direction is angle α, angle α≤angle δ, in this embodiment, angle α is 45°, the angle between the inner edge of the upper opening 2 of the anchor lip and the vertical direction is angle γ, angle γ=180°-angle θ, in this embodiment, angle γ is 135°;

[0057] Step S3: in the front view of the anchor lip 200, draw the anchor lip inner contour line A, the anchor lip outer contour line B, and the anchor lip top tangent point line C based on the shape and size parameters of the anchor lip lower opening 1 and the anchor lip upper opening 2;

[0058] In this step, it can be understood that due to Figure 3 The cross-section sketch is drawn in accordance with the actual size or proportional scale, and the size of each part has practical significance. Figure 3 The cross-sectional sketch can be reversed to draw the front view of the anchor lip 200 ( Figure 4 ) in the anchor lip inner contour line A, the anchor lip outer contour line B and the anchor lip top tangent point line C, the anchor lip outer contour line B and the anchor lip top tangent point line C are magnified ellipses of the anchor lip inner contour line A, and the magnification is obtained from the anchor lip 200 cross-sectional view. Specifically: from Figure 3 In the cross-section sketch of Figure 3 The middle dimension a is the major axis of the ellipse, the major axis dimension is 2R / sinθ, the radius R of the anchor chain tube 100 is the minor axis of the ellipse, and the position of the major axis A / 2 is the center of the ellipse. Draw the inner contour line A of the anchor lip; Figure 3 The middle dimension b is the major axis of the ellipse, and the minor axis of the ellipse is calculated by the ratio of dimensions a and b. Draw the outer contour line B of the anchor lip. Similarly, Figure 3 The middle dimension c is the major axis of the ellipse, and the minor axis dimension of the ellipse is calculated by the ratio of dimensions a and c, and the anchor lip top tangent point line C is drawn.

[0059] Step S4: Taking the center of the inner contour line A of the anchor lip as the rotation center, draw the cross-sectional shape of the anchor lip 200 on the front view of the anchor lip 200.

[0060] In this step, the present invention can obtain and draw the cross-sectional shape of the anchor lip 200 at various angles by using the interpolation method. Taking the cross-sectional shape of the anchor lip 200 in the horizontal direction as an example, the steps specifically include the following:

[0061] Step S40: Draw a vertical cross-sectional line DC on the front view of the anchor lip 200;

[0062] I understand. Figure 3 The vertical cross-sectional view of the anchor lip 200 is a cross-sectional view of the anchor lip 200 at the vertical cross-sectional line DC. Figure 3 The vertical cross-sectional view of the anchor lip 200 is copied to Figure 4 , as a cross section of the anchor lip 200 at the vertical cross section line DC;

[0063] Step S41: In the front view of the anchor lip 200, a horizontal section line DS is drawn with the center of the anchor lip inner contour line A as a reference. The intersections of the horizontal section line DS and the anchor lip top tangent point line C are marked as intersection points E0 and E1 respectively;

[0064] Step S42, draw a horizontal line through the intersection E0 and the intersection E1 toward the cross-section of the anchor lip 200 to obtain line segments H0 and H1;

[0065] It can be understood that in actual drawing, Figure 4 As the main view is located in Figure 3 On the left side, Figure 4 and Figure 3 The dimensions in the figure correspond to each other, and the intersection points E0 and E1 ( Figure 4 ) draws a horizontal line and the cross-sectional view of the anchor lip 200 ( Figure 3 ) intersect to obtain line segments H0 and H1. Since the intersection points E0 and E1 are at Figure 4 The horizontal lines drawn are the same and are Figure 3 It is found that line segment H0 and line segment H1 are the same.

[0066] Step S43: draw parallel lines P0 and P1 parallel to the horizontal cross-sectional line DS, respectively, with the lengths of line segments H0 and H1 as intervals;

[0067] In this step, the length of line segment H0 and line segment H1 is the same. Figure 4 Draw parallel lines P0 and P1 in the middle that are parallel to the horizontal section line DS;

[0068] Step S44, calculate and obtain the outer edge angle G0=G1=(α+β) / 2 of the horizontal section line DS; and draw outer edge angle oblique line I0 and outer edge angle oblique line I1 on the horizontal section line DS at the outer edge angle G0 and outer edge angle G1; take the inner edge angle M0 and inner edge angle M1 of the horizontal section line DS as 90° respectively, and draw inner edge angle oblique line F0 and inner edge angle oblique line F1 on the horizontal section line DS at the inner edge angle M0 and inner edge angle M1; the outer edge angle oblique line I0, the inner edge angle oblique line F0, the parallel line P0 and the horizontal section line DS enclose a trapezoidal surface J0; the outer edge angle oblique line I1, the inner edge angle oblique line F1, the parallel line P1 and the horizontal section line DS enclose a trapezoidal surface J1;

[0069] Draw an inscribed arc S0 from the outer edge angle slash line I0, the inner edge angle slash line F0 and the parallel line P0. The two ends of the inscribed arc S0 are tangent to the outer edge angle slash line I0 and the inner edge angle slash line F0 and then extend along the direction of the outer edge angle slash line I0 and the inner edge angle slash line F0 respectively, as shown in the following example: Figure 4 As shown;

[0070] An inscribed arc S1 is drawn along the outer edge angle oblique line I1, the inner edge angle oblique line F1, and the parallel line P1. The two ends of the inscribed arc S1 are tangent to the outer edge angle oblique line I1 and the inner edge angle oblique line F1, and then extend along the outer edge angle oblique line I1 and the inner edge angle oblique line F1, respectively. The cross-sectional shape of the anchor lip 200 at the horizontal section line DS coincides with the directions of the inscribed arc S0 and the inscribed arc S1, respectively. The inscribed arcs S0 and S1 are the cross-sectional shapes of the anchor lip 200 at the horizontal section line DS.

[0071] In this embodiment, the cross-section line D1 is taken as an example to further describe a method of drawing the cross section of the anchor lip 200 at the cross-section line D1 using the interpolation method.

[0072] Step S45: Take the median of the vertical section line DC and the horizontal section line DS as the section line D1, and the intersections of the section line D1 and the anchor lip top tangent point line C as intersection points E2 and E3 respectively; Figure 6 As shown, a section line D1 is drawn at an angle of 45° between the vertical section line DC and the horizontal section line DS. The section line D1 intersects the anchor lip top tangent point line C at intersection points E2 and E3 respectively;

[0073] Step S46, draw horizontal lines through the intersection E2 and the intersection E3 to the cross-sectional view of the anchor lip 200, respectively, to obtain line segments H2 and H3; in this step, similarly to step S42, draw horizontal lines through the intersection E2 and the cross-sectional view of the anchor lip 200 ( Figure 5 ) Draw out the horizontal line to get line segment H2; through the intersection E3, to the anchor lip 200 cross-sectional view ( Figure 5 ) Draw a horizontal line to obtain line segment H3;

[0074] Step S47: Draw parallel lines P2 and P3 parallel to the cross-sectional line D1, respectively, with the lengths of line segments H2 and H3 as intervals. Figure 6 As shown, the distance between the parallel line P2 and the cross-sectional line D1 is the length of the line segment H2, and the distance between the parallel line P3 and the cross-sectional line D1 is the length of the line segment H3;

[0075] Step S48: Calculate and obtain the outer edge angle G2 = (α + G1) / 2 and the outer edge angle G3 = (β + G0) / 2 of the cross-section line D1, and draw the outer edge angle slant line I2 and the outer edge angle slant line I3 on the cross-section line D1 based on the outer edge angle G2 and the outer edge angle G3, respectively; calculate and obtain the inner edge angle M2 = (γ + M1) / 2 and the inner edge angle M3 = (δ + M0) / 2 of the cross-section line D1, and draw the inner edge angle slant line F2 and the inner edge angle slant line F3 on the cross-section line D1 based on the inner edge angle M2 and the inner edge angle M3, respectively;

[0076] The outer edge angled line I2, the inner edge angled line F2, the parallel line P2, and the cross-sectional line D1 enclose a trapezoidal surface J2. The outer edge angled line I3, the inner edge angled line F3, the parallel line P3, and the cross-sectional line D1 enclose a trapezoidal surface J3. Inscribed arcs S2 and S3 are drawn in trapezoidal surfaces J2 and J3, respectively. The directions of the inscribed arcs S2 and S3 coincide with the cross-sectional shape of the anchor lip 200. The inscribed arcs S2 and S3 represent the cross-sectional shape of the anchor lip 200 at the cross-sectional line D1.

[0077] Using the aforementioned insertion method, the cross-sectional shape of the anchor lip 200 at any angle can be plotted, with the center of the inner contour line A of the anchor lip as the center of rotation, thereby enabling the design and manufacture of the anchor lip 200. The present invention also provides an anchor lip 200 manufactured using the aforementioned anchor lip design method, which provides a good fit between the anchor and the anchor lip 200, is less susceptible to anchor sticking, and exhibits excellent performance in actual ship testing.

[0078] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A method for designing an anchor lip, characterized in that: The steps include: Step S1, based on the position and actual size of the anchor chain barrel (100) in the anchor equipment plan layout, draw a vertical section of the anchor chain barrel (100) on paper, the angle between the center line of the anchor chain barrel (100) and the vertical direction is recorded as the anchor lip installation angle θ, and the radius of the anchor chain barrel (100) is R; Step S2, determining the shape and size parameters of the anchor lip lower opening (1) and the anchor lip upper opening (2), and drawing the vertical sections of the anchor lip lower opening (1) and the anchor lip upper opening (2) on the vertical section of the anchor chain tube (100), respectively, recording the angles between the outer edge of the anchor lip upper opening (2) and the inner edge of the anchor lip upper opening (2) and the vertical direction as angles α and γ respectively; and the angles between the outer edge of the anchor lip lower opening (1) and the inner edge of the anchor lip lower opening (1) and the vertical direction as angles β and δ respectively; Step S3, in the front view of the anchor lip (200), draw the anchor lip inner contour line A, the anchor lip outer contour line B and the anchor lip top tangent point line C according to the shape and size parameters of the anchor lip lower opening (1) and the anchor lip upper opening (2); Step S4, taking the center of the inner contour line A of the anchor lip as the rotation center, making the cross-sectional shape of the anchor lip (200) on the front view of the anchor lip (200); In the step S4, the cross-sectional shape of the anchor lip (200) in the horizontal direction is obtained, which specifically includes the following steps: Step S40, drawing a vertical cross-sectional line DC on the front view of the anchor lip (200); Step S41: In the front view of the anchor lip (200), a horizontal section line DS is drawn with the center of the inner contour line A of the anchor lip as a reference, and the intersections of the horizontal section line DS and the top tangent point line C of the anchor lip are respectively recorded as intersection points E0 and E1; Step S42, drawing a horizontal line through the intersection E0 and the intersection E1 toward the cross-sectional view of the anchor lip (200) to obtain line segments H0 and H1; Step S43, using the lengths of the line segments H0 and H1 as intervals, respectively draw parallel lines P0 and P1 parallel to the horizontal cross-sectional line DS; Step S44, calculating and obtaining the outer edge angle G0=G1=(α+β) / 2 of the horizontal section line DS; and drawing an outer edge angle oblique line I0 and an outer edge angle oblique line I1 on the horizontal section line DS using the outer edge angle G0 and the outer edge angle G1; taking the inner edge angle M0 and the inner edge angle M1 of the horizontal section line DS as 90° respectively, and drawing an inner edge angle oblique line F0 and an inner edge angle oblique line F1 on the horizontal section line DS using the inner edge angle M0 and the inner edge angle M1; the outer edge angle oblique line I0, the inner edge angle oblique line F0, the parallel line P0, and the horizontal section line DS enclose a trapezoidal surface J0; the outer edge angle oblique line I1, the inner edge angle oblique line F1, the parallel line P1, and the horizontal section line DS enclose a trapezoidal surface J1; An inscribed arc S0 is formed by the outer edge angle line I0, the inner edge angle line F0, and the parallel line P0. The two ends of the inscribed arc S0 are tangent to the outer edge angle line I0 and the inner edge angle line F0 and extend along the outer edge angle line I0 and the inner edge angle line F0 respectively. An inscribed arc S1 is formed by taking the outer edge angle oblique line I1, the inner edge angle oblique line F1 and the parallel line P1 as three sides, and the two ends of the inscribed arc S1 are tangent to the outer edge angle oblique line I1 and the inner edge angle oblique line F1 and extend in the direction of the outer edge angle oblique line I1 and the inner edge angle oblique line F1 respectively; the cross-sectional shape of the anchor lip (200) at the horizontal cross-sectional line DS coincides with the direction of the inscribed arc S0 and the inscribed arc S1 respectively; After step S44, the method further includes: Step S45: A cross-sectional line D1 is formed by dividing the angle between the vertical cross-sectional line DC and the horizontal cross-sectional line DS, and intersections of the cross-sectional line D1 and the anchor lip top tangent point line C are recorded as intersection points E2 and E3 respectively; Step S46, draw horizontal lines through the intersection point E2 and the intersection point E3 toward the cross-sectional view of the anchor lip (200) to obtain line segments H2 and H3; Step S47, using the lengths of the line segments H2 and H3 as intervals, respectively draw parallel lines P2 and P3 parallel to the cross-sectional line D1; Step S48: Calculate and obtain the outer edge angle G2 = (α + G1) / 2 and the outer edge angle G3 = (β + G0) / 2 of the cross-section line D1, and use the outer edge angle G2 and the outer edge angle G3 to draw an outer edge angle oblique line I2 and an outer edge angle oblique line I3 on the cross-section line D1, respectively; calculate and obtain the inner edge angle M2 = (γ + M1) / 2 and the inner edge angle M3 = (δ + M0) / 2 of the cross-section line D1, and use the inner edge angle M2 and the inner edge angle M3 to draw an inner edge angle oblique line F2 and an inner edge angle oblique line F3 on the cross-section line D1, respectively; The outer edge angle oblique line I2, the inner edge angle oblique line F2, the parallel line P2 and the cross-sectional line D1 are arranged to form a trapezoidal surface J2; the outer edge angle oblique line I3, the inner edge angle oblique line F3, the parallel line P3 and the cross-sectional line D1 are arranged to form a trapezoidal surface J3; inscribed arcs S2 and S3 are respectively made in the trapezoidal surface J2 and the trapezoidal surface J3; the inscribed arcs S2 and S3 coincide with the cross-sectional shape of the anchor lip (200).

2. The anchor lip design method according to claim 1, characterized in that: In the step S1 , the anchor lip installation angle θ is in the range of 40°≤θ≤45°.

3. The anchor lip design method according to claim 1, characterized in that: In step S2, the arc radius R1 of the lower opening (1) of the anchor lip is not less than 3 times the diameter of the anchor chain (300), and the height K1 of the lower opening (1) of the anchor lip is greater than 6 times the diameter of the anchor chain (300).

4. The anchor lip design method according to claim 1, characterized in that: In step S2, the arc radius R2 of the upper opening (2) of the anchor lip and the contact point of the anchor claw (400) are at a position L / 2.5-L / 3 from the tip of the anchor claw, where L is the length from the center of the anchor crown to the tip of the anchor claw (400).

5. The anchor lip design method according to claim 1, characterized in that: In the step S2, the height K2 of the upper opening of the anchor lip (2) is selected and designed according to the actual storage of the anchor on board, that is, when the anchor rod (401) abuts against the upper opening of the anchor lip (2), the center of the anchor rod shackle cross pin (402) needs to be at the center line of the anchor chain barrel (100).

6. The anchor lip design method according to claim 1, characterized in that: In step S3 , the inner contour line A of the anchor lip is an ellipse, and the minor axis dimension of the inner contour line A of the anchor lip is R, and the major axis dimension is 2R / sinθ.

7. The anchor lip design method according to claim 1, characterized in that: In the step S3, the anchor lip outer contour line B and the anchor lip top tangent point line C are magnified ellipses of the anchor lip inner contour line A, and the magnification is obtained through the cross-sectional view of the anchor lip (200).

8. An anchor lip, characterized in that: It is designed using the anchor lip design method according to any one of claims 1 to 7.

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