Stranding machine cradle beam structure and processing method

Abstract

The present application relates to a kind of stranding machine cradle beam structure and processing method, belong to stranding machine structure technical field, including beam body, the beam body includes a rectangular hollow steel tube, the steel tube includes support section in the center and the connecting section of both ends along the axial direction, two the connecting section gradually thins from the side close to center to the side close to both ends, the axial length of the connecting section is less than solder layer, the inner surface of the connecting section is flush with center section, the outer surface of the connecting section is formed with slope face, any described slope face is provided with solder layer, the outer surface of the solder layer is flush with the outer surface of steel tube center section;The connecting section of the beam body both sides is connected with the both sides disc of stranding machine cradle, two described connecting section is connected with corresponding disc by the mode that solder layer and corresponding disc are welded, the beam body is connected with disc, and the axial center line of itself is parallel with the axial center line of stranding machine cradle.

Description

Technical Field

[0001] This invention belongs to the technical field of stranding machine structure, specifically relating to a stranding machine cradle beam structure and its processing method. Background Technology

[0002] A stranding machine is a device that uses rotation to twist several cables or fibers together. It is widely used in industries such as power, communications, and aerospace. It needs to maintain a high speed of operation and synchronize the movement of the two discs of the cradle structure. For this purpose, the usual solution is to set the two discs coaxially. In this case, a crossbeam structure needs to be set up to connect with both discs to ensure that the two discs rotate synchronously.

[0003] Due to the high rotational speed of the cradle, the linear velocity on the outer side of the disk is relatively high, resulting in a large force on the crossbeam structure. When the crossbeam structure is unstable, the fixing effect at both ends is reduced. At this time, the high rotational speed of the cradle amplifies the force on both ends of the crossbeam structure, causing the crossbeam structure to detach from the high-speed rotating machine and cause an accident. Therefore, it is necessary to ensure that the length of the crossbeam structure is as consistent as possible with the distance between the two disks, so that the two ends are as close as possible to the surface of the two disk structures. The usual practice is to set a steel pipe with a length slightly exceeding the distance between the two disks, and then perform a small amount of cutting and grinding to shorten the length. Check whether the length of the steel pipe is consistent with the distance between the two disks. If the check result is not, repeat the above cutting and check steps until the length of the steel pipe is consistent with the distance between the two disks. Then, weld the two ends of the steel pipe to the disk. Therefore, a steel pipe with a weld layer at both ends is required.

[0004] Typical steel pipe structures of this type, such as the seamless steel pipe disclosed in Chinese Patent CN209557826U that facilitates connection, include a steel pipe body, a convex ring at one end of the steel pipe body, a concave ring on the inner side of the other end of the steel pipe body, a welding ring fitted on the outer wall of the convex ring, and a protective sleeve between two adjacent parallel steel pipe bodies. This utility model, by providing convex and concave rings that can interlock at both ends of the steel pipe body, and fitting welding rings on the convex rings, allows the two steel pipe bodies to interlock and seal by melting the welding rings when they are joined, greatly increasing the welding contact area and improving the stability and sealing of the connection.

[0005] By setting solder rings at both ends, a structure composed of solder is formed at both ends, so that when the steel pipe is inserted between the two discs, welding can be directly performed to complete the connection. However, the two discs connecting the cradle need high structural strength and will withstand large tangential forces. In the above structure, the connection surface between the solder layer and the main structure is small, the fixation is not stable enough, the structural strength is not high, and the boundary lines between different structures along the axial direction are obvious. The connection points between different structures will become weak points in the structure. Therefore, a crossbeam structure and processing method for the stranding machine cradle that is easy to cut and weld and has high structural strength is needed. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention provides a stranding machine cradle beam structure and processing method, which features convenient cutting and welding while maintaining high structural strength.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A crossbeam structure and processing method for a stranding machine cradle includes a crossbeam body. The crossbeam body includes a rectangular hollow steel pipe. The steel pipe includes a support section located at the center and connecting sections at both ends along the axial direction. The two connecting sections gradually thin from the side near the center to the side near the ends. The axial length of the connecting section is less than the solder layer. The inner surface of the connecting section is flush with the center section. The outer surface of the connecting section forms a slope. A solder layer is provided on any of the slopes. The outer surface of the solder layer is flush with the outer surface of the center section of the steel pipe.

[0009] The two connecting sections on both sides of the crossbeam body are respectively connected to the two discs on both sides of the stranding machine cradle. The two connecting sections are connected to the corresponding discs by welding with a solder layer. After the crossbeam body is connected to the discs, its own axis is parallel to the axis of the stranding machine cradle.

[0010] As a preferred embodiment of the present invention, any of the connecting sections along the direction from the center to the edge of the hollow steel pipe is divided into an inner connecting section and an outer connecting section, wherein the angle between the slope surface of the inner connecting section and the inner surface is smaller than the angle between the slope surface of the outer connecting section and the inner surface.

[0011] As a preferred embodiment of the present invention, the angle between the slope surface of the inner connecting section and the inner surface of any of the connecting sections is B, and the angle between the slope surface of the outer connecting section and the inner surface is A, wherein A:B = 1:2 to 1:3, and 10°≤B≤15°.

[0012] As a preferred embodiment of the present invention, the central section includes an inner side surface located near the axis of the stranding machine cradle of the hollow steel pipe and an outer side surface located away from the axis of the stranding machine cradle of the hollow steel pipe, wherein the thickness of the outer side surface is greater than the thickness of the inner side surface.

[0013] As a preferred embodiment of the present invention, the thickness of the outer side is C, and the thickness of the inner side is D, wherein C:D = 1:1.1~1.2.

[0014] This invention also improves a processing method for a stranding machine cradle beam structure, applicable to the aforementioned stranding machine cradle beam structure, comprising the following steps:

[0015] Step 1: Process rectangular hollow steel pipes so that the thickness ratio of the two sides of the rectangular hollow steel pipe is 1:1.1 to 1.2;

[0016] Step 2: Grind both sides of the hollow steel pipe to form a slope structure that decreases in thickness from thick to thin, ensuring that the inner surface of the connecting section is flush with the center section;

[0017] Step 3: Set a weld layer on the outer surface slope of the connecting section. The axial weld layer is farther from the center of the steel pipe than the end of the connecting section.

[0018] The beneficial effects of this invention are as follows:

[0019] (1) By setting the steel pipe as a support section located in the center and a connecting section at both ends along the axial direction, the connecting section gradually thins from the side near the center to the side near both ends. The inner surface of the connecting section is flush with the center section, and the outer surface of the connecting section forms a slope surface. A weld layer is provided on the slope surface. The outer surface of the weld layer is flush with the outer surface of the center section of the steel pipe, forming a direction along the axial direction from both ends of the steel pipe to the center of the steel pipe. The thickness of the weld layer changes from thick to thin, and the thickness of the steel pipe changes from thin to thick. The connection surface of the two structures is a slope structure, which improves the connection tightness between the weld layer and the disc structure, increases the total volume of the steel pipe, and the proportion of the steel pipe structure in the total structure. It expands the contact surface between the steel pipe and the weld layer, improves the structural strength, and ensures the convenience of cutting and grinding.

[0020] (2) By dividing any connecting section into an inner connecting section and an outer connecting section along the direction from the center to the edge of the hollow steel pipe, and the angle between the slope surface of the inner connecting section and the inner surface is smaller than that between the slope surface of the outer connecting section and the inner surface, two slopes with different gradients are formed, making the steel pipe of the connecting section thicker on the side away from the disc, which further increases the proportion of the steel pipe in the total volume. Moreover, the part of the steel plate that is thicker is far away from the end of the weld layer used for welding, and has a lower impact on the area of ​​the weld layer and the disc connection surface. Therefore, without affecting the tightness of the connection between the weld layer and the disc, the structural strength is improved. At the same time, the area of ​​the two slopes with different angles between the slope surface and the inner surface is larger, and the connection area between the weld layer and the steel pipe is larger, which further improves the tightness of the connection between the weld layer and the steel pipe and improves the structural strength.

[0021] (3) By setting the ratio of the slope of the inner connecting section to the slope of the outer connecting section to 1:2, the thickness of the weld layer near the inner connecting section is prevented from being too thin, which would prevent the weld layer in this part from being unable to play a stable connection with the steel pipe. At the same time, the steel pipe in the inner connecting section is prevented from being too thin, which would reduce the proportion of the steel pipe in the total volume. Attached Figure Description

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention after being connected to the disk;

[0024] Figure 2 This is a schematic diagram of the beam structure of the present invention after the solder layer has been removed;

[0025] Figure 3 This is a schematic diagram of the side cross-sectional structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the radial cross-sectional structure of the present invention;

[0027] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0028] Explanation of key component symbols:

[0029] In the diagram: 1. Steel pipe; 11. Central section; 12. Connecting section; 121. Inner connecting section; 122. Outer connecting section; 123. Slope; 13. Inner side; 14. Outer side; 2. Welding layer; 3. Disc. Detailed Implementation

[0030] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0031] Please see Figure 1-5 A crossbeam structure for a stranding machine cradle includes a crossbeam body, the crossbeam body including a rectangular hollow steel pipe 1, the steel pipe 1 including a support section located at the center and connecting sections 12 at both ends along the axial direction;

[0032] Specifically, the outer shape of the axial section of the rectangular hollow steel pipe 1 is a square, and the hollow steel pipe 1 as a whole is a hollow square prism.

[0033] Meanwhile, for the stranding machine cradle corresponding to this solution, the cradle includes at least two disc structures 3. The axis lines of the two discs 3 coincide and are parallel to the ground. At least one of the two disc structures 3 is driven by an external power source to rotate around its own axis line. At the same time, it is necessary to maintain the synchronous movement of the two discs 3 of the cradle structure. The crossbeam structure is connected to both discs 3 to ensure that the two discs 3 rotate synchronously. When the rotation of the two discs 3 tends to be asynchronous, the crossbeam structure restricts the relative movement of the two discs 3 through its connection point with the disc structure 3 to ensure that the two discs 3 rotate synchronously.

[0034] Because the cradle needs to maintain a high speed during the operation of the stranding machine, the linear velocity on the outer side of the disc 3 is high, resulting in a large force on the crossbeam structure. When the crossbeam structure is unstable, the fixing effect at both ends is reduced. At this time, the high speed of the cradle amplifies the force on both ends of the crossbeam structure, causing the crossbeam structure to fall off from the high-speed rotating machine and cause an accident. Therefore, it is necessary to ensure that the length of the crossbeam structure is as consistent as possible with the distance between the two discs 3, so that the two ends are as close as possible to the surface of the two discs 3. At this time, the usual practice is to set a steel pipe 1 with a length slightly exceeding the distance between the two discs 3, and then perform a small amount of cutting and grinding to shorten the length. It is then judged whether the length of the steel pipe 1 is consistent with the distance between the two discs 3. If the judgment result is not, the above cutting and judgment steps are repeated until the length of the steel pipe 1 is consistent with the distance between the two discs 3. Then, the two ends of the steel pipe 1 are welded to the discs 3. Therefore, a steel pipe 1 with a weld layer 2 at both ends is required.

[0035] Meanwhile, the two discs 3 connecting the cradle require high structural strength and will withstand large tangential forces. If a conventional setting is adopted, a weld layer 2 with the same cross-sectional shape as the steel pipe 1 is directly extended on both sides of the steel pipe 1. At this time, the connection surface between the weld layer 2 and the main structure is small, the fixation is not stable enough, the structural strength is not high, and the boundary line between different structures along the axial direction is obvious. The connection point between different structures will become a weak point in the structure. Therefore, it is necessary to improve the connection strength between the weld layer 2 and the main body of the steel pipe 1.

[0036] Therefore, the two connecting sections 12 gradually become thinner from the side near the center to the side near both ends. The axial length of the connecting section 12 is less than that of the solder layer 2. The inner surface of the connecting section 12 is flush with the center section 11. The outer surface of the connecting section 12 forms a slope 123 surface. A solder layer 2 is provided on any slope 123 surface. The outer surface of the solder layer 2 is flush with the outer surface of the center section 11 of the steel pipe 1.

[0037] Specifically, for the steel pipe 1 body, the central section 11 can be regarded as an ordinary hollow steel pipe 1, and the connecting section 12 is a steel pipe 1 with the same shape as the central section 11, which is set on both sides of the central section 11. Therefore, each connecting section 12 has four side walls, which correspond to four inner surfaces and four outer surfaces. Then, for each side wall, a surface is formed with the boundary line between the outer surface and the central section 11 as the starting point and the edge of the inner surface away from the center of the steel pipe 1 as the ending point. Then, the connecting section 12 part on the outer side of this surface is hollowed out.

[0038] At this time, for each connecting segment 12, four slopes 123 are formed on the four side walls, and the slopes 123 are set outward. The inner surface of the connecting segment 12 is flush with the inner surface of the central segment 11, and each slope 123 surface smoothly transitions with the adjacent slope 123 surface.

[0039] Subsequently, a weld layer 2 is provided on each slope 123 surface of each connecting segment 12. The shape of the weld layer 2 is consistent with the shape and position of the hollowed-out part of the connecting segment 12, plus a structure that extends axially to both sides and has the same thickness as the side wall of the steel pipe 1. The outer surface of the weld layer 2 that is radially perpendicular to the steel pipe 1 is flush with the side wall of the steel pipe 1. At this time, a weld layer 2 with varying thickness is formed on each slope 123 surface.

[0040] Along the axial direction from both ends of the steel pipe 1 to the center of the steel pipe 1, the thickness of the weld layer 2 decreases from thick to thin, while the thickness of the steel pipe 1 increases from thin to thick. The connection surface between the two structures is an inclined plane, and the connection surface forms a certain angle with the radial direction of the steel pipe 1.

[0041] When it is necessary to cut and grind the steel pipe 1, the cutting equipment first contacts the weld layer 2. Since the hardness and strength of the weld layer 2 are less than those of the steel pipe 1, the cutting difficulty is lower, ensuring the convenience of cutting and grinding, and avoiding damage to the structural strength of the steel pipe 1 during the cutting process.

[0042] When the length of the crossbeam is ground to match the distance between the two discs 3, the crossbeam is placed in the target position. Then the welding machine welds the solder layer 2, and the solder layer 2 of the two connecting sections 12 is connected to the corresponding discs 3 by welding. At this time, the crossbeam is connected to the discs 3.

[0043] After welding is completed, when the crossbeam plays a fixing role, the force transmission chain is the disc 3, the solder layer 2, the connecting section 12 and the center section 11. At this time, since the connection surface of the solder layer 2 and the connecting section 12 is an inclined surface, compared with the design of different structures being segmented along the axial direction, the contact surface is expanded. At this time, the larger contact surface improves the connection tightness of the two structures and improves the structural strength.

[0044] Meanwhile, as the thickness of the solder layer 2 decreases from thick to thin along the axial direction from both ends of the steel pipe 1 to the center of the steel pipe 1, and is thicker at the end used to connect with the disk 3, it ensures that more solder can be connected with the disk 3 at the same time, thereby improving the connection tightness between the solder layer 2 and the disk 3 structure and improving the structural strength.

[0045] Meanwhile, due to the change in thickness of steel pipe 1 from both ends to the center along the axial direction, compared to the design of different structures being segmented along the axial direction with the interface perpendicular to the axial direction, the total volume of steel pipe 1 and the proportion of steel pipe 1 structure in the total structure are increased. In addition, the thicker part of steel pipe 1 is far away from the connection surface between the solder layer 2 and the disk 3, which improves the structural strength without affecting the tightness of the connection between the solder layer 2 and the disk 3.

[0046] By configuring the steel pipe 1 as a support section located at the center and connecting sections 12 at both ends along the axial direction, the connecting sections 12 gradually thin from the side near the center to the side near the ends. The inner surface of the connecting section 12 is flush with the center section 11, and the outer surface of the connecting section 12 forms a slope 123 surface. A weld layer 2 is provided on the slope 123 surface. The outer surface of the weld layer 2 is flush with the outer surface of the center section 11 of the steel pipe 1, forming a direction along the axial direction from both ends of the steel pipe 1 to the center of the steel pipe 1. The thickness of the weld layer 2 gradually decreases, while the thickness of the steel pipe 1 gradually increases. The connection surface between the two structures is a sloped structure, which improves the connection tightness between the weld layer 2 and the disc 3 structure, increases the total volume of the steel pipe 1, and increases the proportion of the steel pipe 1 structure in the total structure. It also expands the contact surface between the steel pipe 1 and the weld layer 2, improves the structural strength, and ensures the convenience of cutting and grinding.

[0047] To further increase the proportion of steel pipe 1 in the overall structure, and to further expand the contact area between steel pipe 1 and weld layer 2, any connecting section 12 along the direction from the center to the edge of hollow steel pipe 1 is divided into an inner connecting section 121 and an outer connecting section 122. The angle between the slope 123 surface of the inner connecting section 121 and the inner surface is smaller than the angle between the slope 123 surface of the outer connecting section 122 and the inner surface.

[0048] When the angle between the slope 123 surface of the inner connecting section 121 and the inner surface is smaller than the angle between the slope 123 surface of the outer connecting section 122 and the inner surface, the slope 123 surface of the connecting section 12 forms a two-segment slope 123, and the angle between the first segment slope 123 and the side wall of the central section 11 is smaller. Under the premise of ensuring that the outer surface of the weld layer 2 is flush with the outer surface of the central section 11 of the steel pipe 1, the thickness of the weld layer 2 on the side away from the disk 3 is thinner, and the thickness of the steel pipe 1 on the side away from the disk 3 is thicker, which further increases the proportion of the steel pipe 1 in the total volume. Moreover, the part of the steel plate that becomes thicker is far away from the end of the weld layer 2 used for welding, and has a lower impact on the area of ​​the connection surface between the weld layer 2 and the disk 3. Therefore, without affecting the tightness of the connection between the weld layer 2 and the disk 3, the structural strength is improved.

[0049] The straight line formed by the inclined planes of the inner connecting section 121 and the outer connecting section 122 on the cross section, together with the straight inclined plane, forms a triangle. According to basic geometry, the length of two sides of a triangle is greater than that of the third side. In this case, compared with the straight inclined plane scheme, the area of ​​the two inclined planes with different angles to the inner surface is larger, the connection area between the weld layer 2 and the steel pipe 1 is larger, which further improves the tightness of the connection between the weld layer 2 and the steel pipe 1 and improves the structural strength.

[0050] By dividing any connecting segment 12 into an inner connecting segment 121 and an outer connecting segment 122 along the direction from the center to the edge of the hollow steel pipe 1, and with the angle between the slope 123 surface of the inner connecting segment 121 and the inner surface being smaller than the angle between the slope 123 surface of the outer connecting segment 122 and the inner surface, two slopes with different gradients are formed. This makes the side of the steel pipe 1 away from the disc 3 thicker, further increasing the proportion of the steel pipe 1 in the total volume. Moreover, the thicker part of the steel plate is far away from the end of the weld layer 2 used for welding, and has a lower impact on the area of ​​the connection surface between the weld layer 2 and the disc 3. Therefore, without affecting the tightness of the connection between the weld layer 2 and the disc 3, the structural strength is improved. At the same time, the area of ​​the two slopes with different angles to the inner surface is larger, and the connection area between the weld layer 2 and the steel pipe 1 is larger, further improving the tightness of the connection between the weld layer 2 and the steel pipe 1 and improving the structural strength.

[0051] For the inner connecting segment 121 and the outer connecting segment 122, specifically, the angle between the slope 123 surface of the inner connecting segment 121 and the inner surface of any connecting segment 12 is B, and the angle between the slope 123 surface of the outer connecting segment 122 and the inner surface is A, where A:B = 1:2 to 1:3, and 10°≤B≤15°;

[0052] When the included angle between the inclined surfaces of the inner connecting section 121 and the outer connecting section 122 is too small, less than 1 / 3 of the inclined surface of the outer connecting section 122, the thickness of the weld layer 2 near the inner connecting section 121 will be too thin. In this case, the weld layer 2 in this part cannot play a stable connection role with the steel pipe 1, which weakens the structural strength. When the included angle between the inclined surfaces of the inner connecting section 121 is too large, greater than 1 / 2 of the inclined surface of the outer connecting section 122, the steel pipe 1 in the inner connecting section 121 part will be too thin, which reduces the proportion of the steel pipe 1 in the total volume and weakens the structural strength.

[0053] By setting the ratio of the slope of the inner connecting section 121 to the slope of the outer connecting section 122 to 1:2, the thickness of the solder layer 2 near the inner connecting section 121 is prevented from being too thin, which would prevent the solder layer 2 in this part from being unable to play a stable connection role with the steel pipe 1. At the same time, the steel pipe 1 in the inner connecting section 121 is prevented from being too thin, which would reduce the proportion of the steel pipe 1 in the total volume.

[0054] During the movement of the disc 3, the steel pipe 1 automatically forms a side close to the rotating shaft and a side far from the rotating shaft. At this time, the linear velocity of the side close to the rotating shaft is smaller and the force is smaller, while the linear velocity of the side far from the rotating shaft is larger and the force is larger. Therefore, it is necessary to reinforce the outer structure.

[0055] Therefore, the central section 11 includes an inner side 13 located near the axis of the stranding machine cradle of the hollow steel pipe 1 and an outer side 14 located away from the axis of the stranding machine cradle of the hollow steel pipe 1. The thickness of the outer side 14 is greater than the thickness of the inner side 13.

[0056] Specifically, the thickness of the outer side 14 is C, and the thickness of the inner side 13 is D, where C:D = 1:1.1~1.2;

[0057] By dividing the central segment 11 into an inner side 13 located near the axis of the stranding machine cradle of the hollow steel pipe 1 and an outer side 14 located away from the axis of the stranding machine cradle of the hollow steel pipe 1, and making the thickness of the outer side 14 greater than that of the inner side 13, the structural strength of the outer side is improved, the additional force on the outer side is offset, and the structural strength is guaranteed.

[0058] Furthermore, the thickness of the inner side 13 is D×A1;

[0059] Specifically, A1 = V / V0 × e, where e is a pre-input constant, V0 is a pre-input speed reference value, and V is the operating speed of the stranding machine;

[0060] When the operating speed V of the stranding machine is large, it means that the force difference between the side of the steel pipe 1 near the shaft and the side away from the shaft is large, and the side away from the shaft needs to be thickened. At this time, the value of D×A1 is large.

[0061] When the operating speed V of the stranding machine is relatively small, it means that the force difference between the side of the steel pipe 1 near the shaft and the side away from the shaft is small, and there is no need to thicken the side away from the shaft. At this time, the value of D×A1 is relatively small.

[0062] The present invention also provides a method for processing a stranding machine cradle beam structure, applicable to the above-mentioned stranding machine cradle beam structure, comprising the following steps:

[0063] Step 1: Process the rectangular hollow steel tube 1 so that the thickness ratio of two sides of the rectangular hollow steel tube 1 is 1:1.1~1.2;

[0064] Step 2: Grind the hollow steel pipe 1 on both sides to form a slope structure 123 that is thicker and thinner, to ensure that the inner surface of the connecting section 12 is flush with the center section 11;

[0065] Step 3: Set a weld layer 2 on the slope 123 on the outer surface of the connecting section 12. The weld layer 2 is farther from the center of the steel pipe 1 than the end of the connecting section 12.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A crossbeam structure for a stranding machine cradle, characterized in that: The device includes a crossbeam body, which comprises a rectangular hollow steel tube. The steel tube includes a support section located at the center and connecting sections at both ends along its axial direction. The two connecting sections gradually thin from the side near the center to the side near the ends. The axial length of the connecting section is less than the weld layer. The inner surface of the connecting section is flush with the center section. The outer surface of the connecting section forms a sloping surface. A weld layer is provided on each of the sloping surfaces. The outer surface of the weld layer is flush with the outer surface of the center section of the steel tube. The two connecting sections on both sides of the crossbeam body are respectively connected to the two discs on both sides of the stranding machine cradle. The two connecting sections are connected to the corresponding discs by welding with a solder layer. After the crossbeam body is connected to the discs, its own axis is parallel to the axis of the stranding machine cradle. Along the direction from the center to the edge of the hollow steel pipe, any of the connecting sections is divided into an inner connecting section and an outer connecting section. The angle between the slope surface of the inner connecting section and the inner surface is smaller than the angle between the slope surface of the outer connecting section and the inner surface. The angle between the slope surface of the inner connecting section and the inner surface of any of the connecting sections is B, and the angle between the slope surface of the outer connecting section and the inner surface is A, where A:B = 1:2~1:3, and 10°≤B≤15°. The central section includes an inner side of the hollow steel pipe near the axis of the stranding machine cradle and an outer side of the hollow steel pipe away from the axis of the stranding machine cradle, wherein the thickness of the outer side is greater than the thickness of the inner side. The thickness of the outer side is C, and the thickness of the inner side is D, where C:D = 1:1.1~1.

2.

2. A method for processing a crossbeam structure of a stranding machine cradle, characterized in that: The method applicable to the stranding machine cradle beam structure according to claim 1 includes the following steps: Step 1: Process rectangular hollow steel pipes so that the thickness ratio of the two sides of the rectangular hollow steel pipe is 1:1.1~1.2; Step 2: Grind both sides of the hollow steel pipe to form a slope structure that decreases in thickness from thick to thin, ensuring that the inner surface of the connecting section is flush with the center section; Step 3: Set a weld layer on the outer surface slope of the connecting section. The axial weld layer is farther from the center of the steel pipe than the end of the connecting section.

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