A data visualization method for selecting O-rings based on rectangular sealing grooves

Abstract

The present invention discloses a data visualization method for selecting an O-ring according to a rectangular sealing groove. A rectangular coordinate system is established, wherein the X-axis represents the sealing groove width, the Y-axis represents the sealing groove depth, the O-ring cross section is converted into a rectangle of equal area, and the sides of the rectangle are used as the coordinates of the corresponding points of the O-ring in the coordinate system. The filling rate line is a hyperbola. The compression rate limit line is a straight line parallel to the X-axis. The graph drawn by the method can intuitively display a suitable O-ring, improve the efficiency and accuracy of selecting the O-ring, and thus ensure the safety and reliability of the sealing equipment.

Description

Technical Field

[0001] The invention provides a data visualization method for selecting an O-ring according to a rectangular sealing groove, and belongs to the field of O-ring selection methods. Background Art

[0002] When installing O-rings on pipe flanges or other sealing devices, the problem of choosing the right O-rings is involved. For some older equipment, the machining accuracy of the sealing groove is low, and the groove width and groove depth are not designed reasonably. In order to ensure the safety and reliability of the seal, it is necessary to carefully choose the right O-ring. The general method is to calculate the compression rate and filling rate of the O-ring to decide whether to use an O-ring with a certain cross-sectional diameter. However, sometimes the compression rate and filling rate cannot be perfectly satisfied at the same time, so it is necessary to calculate several O-rings with different cross-sectional diameters for comparison and selection, which increases the amount of calculation, and the data is not intuitive, which increases the difficulty of choosing O-rings. Summary of the invention

[0003] The purpose of the present invention is to provide a simple, fast and intuitive visual selection method to address the drawbacks of the current method of selecting O-rings according to sealing grooves, which has large calculation amount and non-intuitive data.

[0004] In order to realize the above technical features, the object of the present invention is achieved as follows: a data visualization method for selecting an O-ring according to a rectangular sealing groove, characterized in that it comprises the following steps:

[0005] Step 1: Establish a rectangular coordinate system;

[0006] Step 2: Determine the corresponding point of the O-ring on the rectangular coordinate system;

[0007] Step 3: Establish fill rate limit line;

[0008] Step 4: Establish the compression rate limit line.

[0009] The process of establishing the rectangular coordinate system in Step 1 is that the X-axis of the rectangular coordinate system is the groove width W of the sealing groove, and the Y-axis is the groove depth H of the sealing groove.

[0010] The specific method of Step 2 is to first convert the cross section of the O-ring into a rectangle of equal area. The area of ​​the converted rectangle is:

[0011]

[0012] Let Y = D o_ring ,but:

[0013]

[0014] Where: X, Y are the sides of the transformed rectangle; D o_ring A is the cross-sectional diameter of the O-ring; rect is the area of ​​the converted rectangle;

[0015] Point (X, Y) is the point with D o_ring The coordinates of the corresponding point of the O-ring with the cross-sectional diameter on the coordinate system.

[0016] The specific method of Step 3 is to derive the filling rate limit line according to the definition of filling rate, which is a hyperbola, that is:

[0017]

[0018] Among them, S groove =WH;

[0019] Where: f is the filling rate (%); W is the sealing groove width, and H is the sealing groove depth.

[0020] The specific method of Step 4 is to derive the compression rate limit line according to the definition of compression rate. The compression rate limit line is only related to the depth of the sealing groove, that is:

[0021]

[0022] Where: H is the depth of the sealing groove; s is the compression rate (%);

[0023] Finally, according to the above algorithm, a point and curve diagram of the O-ring, the filling rate limit line and the compression rate limit line is drawn, and the appropriate O-ring can be found intuitively using the diagram.

[0024] The present invention has the following beneficial effects:

[0025] 1. The diagram drawn by the method of the present invention can intuitively display the appropriate O-ring, thereby improving the efficiency and accuracy of selecting the O-ring, thereby ensuring the safety and reliability of the sealing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 A diagram drawn using the method of the present invention. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0029] Embodiment 1:

[0030] See also Figure 1 , a data visualization method for selecting an O-ring according to a rectangular sealing groove, comprising the following steps:

[0031] Step 1: Establish a rectangular coordinate system; the X-axis of the rectangular coordinate system is the groove width W of the sealing groove, and the Y-axis is the groove depth H of the sealing groove.

[0032] Step 2: Determine the corresponding point of the O-ring on the rectangular coordinate system; first convert the cross section of the O-ring into a rectangle of equal area. The area of ​​the converted rectangle is:

[0033]

[0034] Let Y = D o_ring ,but:

[0035]

[0036] Where: X, Y are the sides of the transformed rectangle; D o_ring A is the cross-sectional diameter of the O-ring; rect is the area of ​​the converted rectangle;

[0037] Point (X, Y) is the point with D o_ring The coordinates of the corresponding point of the O-ring with the cross-sectional diameter on the coordinate system.

[0038] Step 3: Establish the fill rate limit line; according to the definition of fill rate, derive the fill rate limit line, which is a hyperbola, that is:

[0039]

[0040] Among them, S groove =WH;

[0041] Where: f is the filling rate (%); W is the sealing groove width, and H is the sealing groove depth.

[0042] Step 4: Establish the compression rate limit line; according to the definition of compression rate, derive the compression rate limit line, which is only related to the depth of the sealing groove, that is:

[0043]

[0044] Where: H is the depth of the sealing groove; s is the compression rate (%);

[0045] Finally, according to the above algorithm, a point and curve diagram of the O-ring, the filling rate limit line and the compression rate limit line is drawn, and the appropriate O-ring can be found intuitively using the diagram.

[0046] Embodiment 2:

[0047] According to the preset O-ring cross-sectional diameter, compression rate limit range and filling rate limit range, the drawing is made according to the width and depth of the sealing groove according to the method given in the technical solution. Figure 1 As shown, the blue circle and the number behind it represent the cross-sectional diameter of the O-ring. The two blue lines parallel to the X-axis are the compression rate limit lines of the O-ring, where the lower blue line represents a 15% compression rate and the upper blue line represents a 30% compression rate. The green area represents the filling rate limit area of ​​the O-ring, the lower limit line of the area represents a 60% filling rate, the upper limit line represents an 85% filling rate, the dark green line in the middle represents the optimal filling rate of 75%, and the red line represents a filling rate of 90%.

[0048] The above embodiments are only the application of this method to the selection of O-rings for axial sealing with specific compression ratio and filling ratio, and the protection scope of the claims is not limited thereto. As long as the conversion method and its data visualization method are utilized and applied to other forms of seals, sealing grooves or restrictive conditions, they shall be within the protection scope of the claims of the present invention.

[0049] The above embodiments are used to illustrate the present invention rather than to limit the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A data visualization method for selecting an O-ring according to a rectangular sealing groove, characterized in that: It includes the following steps: Step 1: Establish a rectangular coordinate system; Step 2: Determine the corresponding point of the O-ring on the rectangular coordinate system; Step 3: Establish fill rate limit line; Step 4: Establish the compression rate limit line; The process of establishing the rectangular coordinate system in Step 1 is that the X-axis of the rectangular coordinate system is the groove width W of the sealing groove, and the Y-axis is the groove depth H of the sealing groove; The specific method of Step 2 is to first convert the cross section of the O-ring into a rectangle of equal area. The area of ​​the converted rectangle is: make ,but: Where: X, Y is the side of the converted rectangle; is the cross-sectional diameter of the O-ring; is the area of ​​the converted rectangle; point( X, Y ) is is the coordinate of the corresponding point of the O-ring with the cross-sectional diameter on the coordinate system; The specific method of Step 3 is to derive the filling rate limit line according to the definition of filling rate, which is a hyperbola, that is: in, ; Where: is the filling rate (%); W is the sealing groove width, H is the sealing groove depth; The specific method of Step 4 is to derive the compression rate limit line according to the definition of compression rate. The compression rate limit line is only related to the depth of the sealing groove, that is: Where: H is the sealing groove depth; s is the compression ratio (%); Finally, according to the above algorithm, a point and curve diagram of the O-ring, the filling rate limit line and the compression rate limit line is drawn, and the appropriate O-ring can be found intuitively using the diagram.

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