Assembly method compatible with rack base

By determining the opening position on the base of the offshore platform crane and using stiffening plate assemblies to form a receiving groove, the problems of inaccurate rack assembly and insufficient structural strength were solved, achieving precise rack housing and improving the overall strength of the base.

CN121757751APending Publication Date: 2026-03-31SOUTH CHINA MARINE MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

When the rack of an existing offshore platform crane is housed in the base, there are problems with inaccurate assembly and insufficient overall structural strength. Especially in harsh marine environments, higher safety, reliability and corrosion resistance are required.

Method used

An assembly method compatible with rack and pinion bases is adopted. By determining the opening positions on the connector, lower cylinder and base, and using rib plate assemblies and sealing plates to form a connecting receiving groove, the rack and pinion are accurately accommodated, while enhancing the overall structural strength of the base.

Benefits of technology

It achieves precise rack and pinion housing and reliable base assembly, improving the overall load-bearing capacity and structural stability of the base, and meeting the high-strength requirements of offshore platform cranes.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the assembling method compatible with the rack and the base, the position of the opening in the connecting body is determined according to the width of the rack, then the cutting lines can be determined on the connecting body, the lower barrel and the base according to the width of the opening, and therefore cutting can be conducted on the connecting body, the lower barrel and the base to form the opening; a second sealing plate perpendicular to the axis of the base is welded to the top end of the opening, and meanwhile, a first sealing plate is welded between the two second rib plates along a second reference straight line, so that a containing groove communicating with the interior of the base is formed among the first rib plates, the second sealing plate and the second rib plates, and the rack penetrates through the interior of the base and is contained in the base; therefore, the base assembly is reliably completed.
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Description

Technical Field

[0001] This invention relates to the field of base technology, and more specifically to an assembly method for a rack and pinion base. Background Technology

[0002] Offshore platform cranes are cranes mainly used on offshore platforms. They are equipment used for loading and unloading cargo and hoisting personnel onto the platform. They are one of the most important production and safety equipment in offshore oil production. Due to the harsh marine environment, their safety, reliability, maintainability, wind resistance, and corrosion resistance during operation must meet standard requirements. At the same time, higher assembly requirements are also placed on offshore platform cranes to meet operational needs.

[0003] For example, Chinese patent application CN202011312367.9, published on January 10, 2023, discloses a modular assembly method for a crane. The method involves pre-assembling a base module, a slewing platform module, a tripod module, and a boom module; welding guide blocks along the top of the base; hoisting the base module above the base and welding it, then removing the guide blocks; hoisting the slewing platform module onto the base module, where the slewing platform module slides along the guide ramp via the lower end of the first bolt of the slewing bearing to engage the inner ring of the slewing bearing with the inner side of the cylindrical part, and then fixing the outer ring of the slewing bearing to the cylindrical part via the second bolt; hoisting the truss onto the slewing platform, aligning the truss support legs with the connecting parts of the slewing platform, and performing the first welding at the process port; after checking that the truss connection is error-free after the first welding, performing a second welding at the connection between the truss support legs and the connecting parts of the slewing platform; and finally, threading wire ropes through the winch after installing the boom module.

[0004] The aforementioned patent document only describes that the base module includes a cylindrical part, a first guardrail, and a reinforcing plate. The reinforcing plate is set on the inner wall of the cylindrical part and is positioned towards the central axis of the cylindrical part. The first guardrail is welded to the outer side of the cylindrical part. The top of the reinforcing plate is provided with a guide slope. This base structure also includes a rack structure to accommodate height adjustment. However, in order to reduce the impact of external factors on the lifting drive device, existing offshore platform cranes need to house the rack in the lifting drive device in the base, thereby reducing the overall space. At the same time, if the rack is placed in the base, it is necessary to consider the base assembly to ensure that the rack can be installed in the base, and also to consider the stability of the entire base after the opening is set and the entire opening is assembled. Summary of the Invention

[0005] The purpose of this invention is to provide an assembly method for a rack and pinion base that can accurately determine the position of the receiving groove inside the base for accommodating the rack, thereby reliably completing the base assembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an assembly method for a rack and pinion base, the base comprising an upper cylinder, a connecting body, a lower cylinder, a base, a first stiffener assembly, and a second stiffener assembly, the second stiffener assembly comprising a first sealing plate, a second sealing plate, and two second stiffeners; comprising the following steps: S1 integrates the connecting body, lower cylinder, and base into one unit; S2 draws a first reference line through the center of the lower end face of the base, then determines a first calibration point on the first reference line, such that the distance from the first calibration point to the center of the circle is equal to half the width of the rack. Then, draws a second reference line through the first calibration point that is parallel to the axis of the base, and marks the first positioning point at the intersection of the second reference line and the connecting body. S3 determines a second calibration point on the first reference line that is symmetrical about the center of the circle to the first calibration point, and then marks the second positioning point on the connecting body that is symmetrical about the base axis to the first positioning point; S4 determines the width of the opening at the first positioning point and the second positioning point according to the width of the upper teeth of the rack. Then, according to the width of the opening, different cutting lines are marked on the connecting body, the lower cylinder and the base from the top of the opening to the bottom of the opening, and the opening is formed by cutting along the cutting lines. S5 welds the first stiffening plate assembly to the outer side wall of the connecting body and the lower cylinder, welds the upper cylinder to the connecting body, then welds the second stiffening plate to the outer side wall of the connecting body and the lower cylinder and to both sides of the opening, welds the second sealing plate perpendicular to the base axis at the top of the opening, and then welds the first sealing plate to the second sealing plate and the second stiffening plate along the second reference line to form an integral whole.

[0007] The above method can determine the position of the opening on the connecting body based on the width of the rack. First, a first reference straight line is drawn through the center of the base to form a first calibration point and a second calibration point. Then, a second reference straight line set parallel to the base axis forms a first positioning point and a second positioning point. The opening width can be determined based on the first and second positioning points, thus ensuring the reliability of the opening width on both sides. A second sealing plate is welded along a direction perpendicular to the base axis, allowing the welding of the second sealing plate using the base axis from the previous steps, ensuring the reliability of the welding position. Furthermore, a cutting line can be determined on the connecting body, lower cylinder, and base based on the opening width, allowing cutting to form the opening on the connecting body, lower cylinder, and base. Finally, a cutting line perpendicular to the opening is welded at the top of the opening. The second sealing plate of the base axis is welded to the first sealing plate between the two second stiffening plates along the second reference line. This allows the first stiffening plate, the second sealing plate, and the second stiffening plate to form a receiving groove that connects to the inside of the base. This allows the rack to pass through the inside of the base and be accommodated within the base. Since an opening is formed at the connection between the connecting body and the lower cylinder, the opening on the base can be reinforced and supported by welding the second stiffening plate assembly at the opening, thereby increasing the structural strength of the missing part at the opening. At the same time, the first stiffening plate assembly is welded to the outside of the base, and the second stiffening plate assembly is welded to the first stiffening plate assembly to form an integral whole. This supports the base from the outside along the outer wall of the connecting body and the lower cylinder, thereby further strengthening the overall strength of the base and meeting the load-bearing requirements of the base.

[0008] Furthermore, the first stiffener assembly and the second stiffener assembly are disposed on the outer side wall of the connecting body and the lower cylinder. The first stiffener assembly and the second stiffener assembly are connected by a reinforcing ring plate assembly. The opening is disposed through the inner and outer side walls of the connecting body and the lower cylinder. The first sealing plate located between the second stiffeners, the second sealing plate extending horizontally outward from the top of the opening perpendicular to the first sealing plate, and the second stiffeners form a receiving groove that connects to the interior of the base.

[0009] The above configuration, with an opening formed at the connection between the connecting body and the lower cylinder, ensures the overall strength of the base by supporting the opening at the connecting body through the structural design of the second stiffening plate assembly. This increases the structural strength of the missing portion at the opening. Furthermore, since the first and second stiffening plate assemblies are connected by a reinforcing ring plate, and the first stiffening plate assemblies are spaced apart and connected to the outer side of the base, they form a unified whole. This provides support to the base from the outside along the outer walls of the connecting body and the lower cylinder, further enhancing the overall strength of the base and meeting its load-bearing requirements.

[0010] Furthermore, the reinforcing ring plate assembly includes a first reinforcing ring plate and a second reinforcing ring plate. The first reinforcing ring plate is connected around the outer wall of the connection between the connecting body and the lower cylinder, and the second reinforcing ring plate is connected around the outer wall of the connection between the lower cylinder and the base.

[0011] The above settings can strengthen the connection between the connector and the lower cylinder, as well as the connection between the lower cylinder and the base, resulting in a stronger load-bearing capacity in the radial direction.

[0012] Furthermore, the first stiffening plate assembly located on the outer wall of the connecting body and the lower cylinder is symmetrically arranged with respect to the second stiffening plate assembly, and the spacing between the first stiffening plate assemblies is equal to the spacing between the first stiffening plate assembly and the second stiffening plate assembly. The first stiffening plate assembly includes an upper stiffening plate, a lower stiffening plate, an upper reinforcing panel, and a lower reinforcing panel. One side of the upper stiffening plate is connected to the outer side of the connecting body, and the upper reinforcing panel is connected to the other side of the upper stiffening plate. The lower ends of the upper stiffening plate and the upper reinforcing panel are both connected to the first reinforcing ring plate. One side of the lower stiffening plate is connected to the outer side of the lower cylinder, and the lower reinforcing panel is connected to the other side of the lower stiffening plate. The two ends of the lower stiffening plate and the lower reinforcing panel are respectively connected to the first reinforcing ring plate and the second reinforcing ring plate.

[0013] The above configuration allows different first stiffening plate assemblies spaced apart on the outer wall of the base to be connected as a whole through the reinforcing ring plate assembly, thereby providing better support for the base and improving its load-bearing capacity.

[0014] Furthermore, the two second stiffeners are connected to the outer side walls of the connecting body and the lower cylinder, and the distance between the two second stiffeners matches the width of the opening. The opening forms an inclined surface on the connecting body and a vertical surface on the lower cylinder. A first angle is formed between the inclined surface and the vertical surface. The vertical surface is parallel to the first sealing plate, and a second angle is formed between the inclined surface and the first sealing plate.

[0015] With the above configuration, after an opening is formed at the connection between the connecting body and the lower cylinder, a first sealing plate parallel to the vertical plane of the opening is set at the top of the opening. This allows the first sealing plate, the second sealing plate, and the second stiffening plate to form a receiving groove that connects to the inside of the base through the opening, so that a rack can be placed in the receiving groove.

[0016] Furthermore, the first sealing plate and the second sealing plate are respectively connected to two second stiffening plates on both sides. The upper end of the first sealing plate is connected to the second sealing plate. One side of the second stiffening plate is connected to the outer wall of the upper cylinder, the connecting body and the lower cylinder. The side of the second stiffening plate is connected to the first reinforcing ring plate and the second reinforcing ring plate respectively.

[0017] With the above configuration, the two second stiffening plates are connected as one unit through the first and second sealing plates, and then connected to the first stiffening plate assembly through the first and second reinforcing ring plates. This allows the first and second stiffening plate assemblies to form an integral frame connected to the outside of the base, and provides support and reinforcement at the opening, the connection between the connecting body and the lower cylinder, the connection between the upper cylinder and the connecting body, and the connection between the lower cylinder and the base, thereby improving the overall load-bearing capacity of the base.

[0018] Furthermore, step S4 includes steps S4.1 to S4.3; S4.1 Draw a third reference line tangent to the outer wall of the connector through the first positioning point. Determine a third calibration point on the third reference line based on half the opening width, such that the distance from the third calibration point to the first positioning point is equal to half the opening width. Draw a fourth reference line perpendicular to the third reference line through the third calibration point. Mark the fourth calibration point at the intersection of the fourth reference line and the connector. S4.2 Repeat step S4.1 and mark the fifth calibration point symmetrically set on the fourth calibration point on the connector; S4.3 Mark a first cutting line parallel to the lower end face of the base between the fourth and fifth calibration points on the outer wall of the connector. Then, make a second cutting line perpendicular to the first cutting line on the outer wall of the connector, passing through the fourth and fifth calibration points respectively, and extend it to the outer wall of the lower cylinder and the base. Cut along the first cutting line and the second cutting line in sequence to form an opening.

[0019] The above settings ensure that the width of the opening formed after cutting matches the width of the teeth on the rack.

[0020] Furthermore, step S5 includes steps S5.1 to S5.3; S5.1 Weld a first reinforcing ring plate at the connection between the connecting body and the lower cylinder, weld a second reinforcing ring plate at the connection between the lower cylinder and the base, then weld a lower stiffening plate between the first reinforcing ring plate and the second reinforcing ring plate, and weld a lower reinforcing panel on the lower stiffening plate. S5.2 Weld an upper stiffening plate to the first reinforcing ring plate, and weld an upper reinforcing panel to the upper stiffening plate. Weld the upper cylinder to the connecting body. Then weld a second stiffening plate to the outer side wall of the upper cylinder, the connecting body, and the lower cylinder, and to both sides of the opening. Weld the second stiffening plate to the first reinforcing ring plate and the second reinforcing ring plate respectively. S5.3 The second sealing plate is welded to the top of the opening along a direction perpendicular to the base axis. At the same time, the second sealing plate is welded to the two second stiffening plates. The first sealing plate is welded to the second sealing plate and the second stiffening plates along the second reference line to form an integral unit.

[0021] The above configuration allows the first stiffening plate assembly to be welded to the second stiffening plate assembly via the first and second reinforcing ring plates to form a single unit and be fixedly connected to the outer wall of the base, thereby improving the overall strength of the base.

[0022] Furthermore, it also includes step S6: Two or more third stiffeners are welded between the first boss of the connecting body and the second boss of the upper cylinder, and the distance between the two third stiffeners at the corresponding positions of the opening is greater than the width of the opening. Then, baffles symmetrically arranged about the opening are welded on the side of the first boss away from the connecting body and the side of the second boss away from the upper cylinder.

[0023] The above settings can further improve the connection reliability between the upper cylinder and the connecting body, thereby improving the structural strength at the upper cylinder and the connecting body. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram illustrating the determination of the opening width on the connector in the invention.

[0026] Figure 3 This is a top view of the present invention.

[0027] Figure 4 for Figure 2 Sectional view at point AA.

[0028] Figure 5 for Figure 3 Sectional view at point GG.

[0029] Figure 6 This is a flowchart of the present invention. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1-6 As shown, an assembly method for a rack and pinion base is provided. The base 01 includes an upper cylinder 1, a connecting body 2, and a lower cylinder 3. The upper and lower ends of the connecting body 2 are connected to the upper cylinder 1 and the lower cylinder 3, respectively. The upper end of the upper cylinder 1 is provided with a flange 20, and the flange 20 is provided with through holes 21 distributed in a circular pattern. The lower end of the upper cylinder 1 is connected to the upper end of the connecting body 2, so that the upper cylinder 1 can be connected to the rotary mechanism through the flange 20. The diameter of the connection port at the upper end of the connecting body 2 is larger than the diameter of the connection port at the lower end of the connecting body 2. The lower end of the connecting body 2 is connected to the upper end of the lower cylinder 3, and the lower end of the lower cylinder 3 is connected to the base 4, so that the upper cylinder 1, the connecting body 2, and the lower cylinder 3 can be connected to the base 4 after being integrated.

[0032] like Figure 1 , 3 As shown in Figure 4, the outer walls of the connecting body 2 and the lower cylinder 3 are provided with first stiffening plate assemblies and second stiffening plate assemblies. In this embodiment, there are six first stiffening plate assemblies and two second stiffening plate assemblies. The first stiffening plate assemblies located on the outer walls of the connecting body 2 and the lower cylinder 3 are symmetrically arranged about the second stiffening plate assemblies, and the spacing between the first stiffening plate assemblies and the spacing between the first stiffening plate assemblies and the second stiffening plate assemblies are equal. The first stiffening plate assemblies and the second stiffening plate assemblies are connected by a reinforcing ring plate assembly, which includes a first reinforcing ring plate 5. The first reinforcing ring plate 5 and the second reinforcing ring plate 6 are both provided in twos. The first reinforcing ring plate 5 and the second reinforcing ring plate 6 are symmetrically arranged around the outside of the base 01 with respect to the second stiffener plate 15 assembly. Specifically, the first reinforcing ring plate 5 is connected around the outer wall of the connection between the connecting body 2 and the lower cylinder 3, and the second reinforcing ring plate 6 is connected around the outer wall of the connection between the lower cylinder 3 and the base 4. This can strengthen the connection strength between the connecting body 2 and the lower cylinder 3 and the connection between the lower cylinder 3 and the base 4, making the load-bearing capacity in the radial direction stronger.

[0033] like Figure 1 and 4 As shown, the first stiffening plate assembly includes an upper stiffening plate 7, a lower stiffening plate 8, an upper reinforcing panel 9, and a lower reinforcing panel 10. One side of the upper stiffening plate 7 is connected to the outside of the connecting body 2, and the upper reinforcing panel 9 is connected to the other side of the upper stiffening plate 7. The lower ends of both the upper stiffening plate 7 and the upper reinforcing panel 9 are connected to the first reinforcing ring plate 5. One side of the lower stiffening plate 8 is connected to the outside of the lower cylinder 3, and the lower reinforcing panel 10 is connected to the other side of the lower stiffening plate 8. The two ends of the lower stiffening plate 8 and the lower reinforcing panel 10 are respectively connected to the first reinforcing ring plate 5 and the second reinforcing ring plate 6. This allows different first stiffening plate assemblies that are spaced apart on the outer wall of the base 01 to be connected into one unit through the reinforcing ring plate assembly, thereby providing better support for the base 01 and improving the load-bearing capacity of the base 01.

[0034] like Figure 3-5As shown, the connection between the connecting body 2 and the lower cylinder 3 is provided with an opening 12 extending along the axis 11 of the connecting body and symmetrically arranged about the axis 11 of the lower cylinder. The opening 12 penetrates the inner and outer walls of the connecting body 2 and the lower cylinder 3. The second stiffening plate assembly located at the opening 12 includes a first sealing plate 13, a second sealing plate 14, and two second stiffening plates 15. The two sides of the first sealing plate 13 and the second sealing plate 14 are respectively connected to the two second stiffening plates 15. One side of the two second stiffening plates 15 is connected to the outer walls of the upper cylinder 1, the connecting body 2, and the lower cylinder 3. The sides of the second stiffening plates 15 are respectively connected to the first reinforcing ring. Plate 5 and the second reinforcing ring plate 6 are connected, and the spacing between the two second stiffeners 15 matches the width of the opening 12. The opening 12 forms an inclined surface 16 on the connecting body 2 and an vertical surface 17 on the lower cylinder 3. The first sealing plate 13, located between the second stiffeners 15, extends vertically downward from the top of the opening 12 to the bottom of the opening 12. The second sealing plate 14 is connected to the inclined surface 16 and extends horizontally outward from the top of the opening 12 perpendicular to the first sealing plate 13. A first included angle α is formed between the inclined surface 16 and the vertical surface 17. In this embodiment, the included angle α is... The vertical surface 17 of the opening is parallel to the first sealing plate 13, and the inclined surface 16 of the opening forms a second included angle b with the first sealing plate 13, which is 160°. This creates a receiving groove 18 connecting the first rib, the second sealing plate 14, and the second rib 15 to the interior of the base 01. Thus, after the opening 12 is formed at the connection between the connecting body 2 and the lower cylinder 3, by setting the first sealing plate 13 parallel to the vertical surface 17 of the opening at the top of the opening 12, the first sealing plate 13, the second sealing plate 14, and the second rib 15 can form a receiving groove 18 connecting the interior of the base 01 through the opening 12. The groove 18 allows for the placement of a rack within it. Simultaneously, the two second stiffening plates 15 are connected as a single unit via the first sealing plate 13 and the second sealing plate 14. Then, the first reinforcing ring plate 5 and the second reinforcing ring plate 6 are connected to the first stiffening plate assembly, thus forming an integral frame connected to the outside of the base 01. This provides support and reinforcement at the opening 12, the connection between the connecting body 2 and the lower cylinder 3, the connection between the upper cylinder 1 and the connecting body 2, and the connection between the lower cylinder 3 and the base 4, thereby improving the overall load-bearing capacity of the base 01.

[0035] like Figure 3 As shown, a curved surface 19 is formed on the other side of the second stiffener 15. The curved surface 19 is connected to the upper and lower ends of the second stiffener 15 respectively. The distance between the curved surface 19 and one side of the second stiffener 15 gradually increases from the upper end of the second stiffener 15 to the lower end of the second stiffener 15, so that the second stiffener 15 can provide better support for both sides of the opening 12, thereby strengthening the local structural strength missing at the opening 12 on the base 01.

[0036] In this embodiment, the distance between the tops of the two openings 12 matches the width of the rack, thus allowing the position of the top of the opening 12 to be determined based on the width of the rack, and the width of the opening 12 to be determined based on the width of the rack, so that the rack passes through the interior of the base 01 and is accommodated within the base 01. Since the opening 12 is formed at the connection between the connecting body 2 and the lower cylinder 3, to ensure the overall strength of the base 01, a second stiffening plate 15 assembly is provided at the opening 12 and on the outside of the base 01. The second sealing plate 14 in the second stiffening plate 15 assembly is perpendicular to the first sealing plate 13, thus supporting the opening 12 on the connecting body 2 of the base 01, thereby increasing the structural strength of the missing portion at the opening 12. Since the second sealing plate 14 and the first sealing plate 13 are both connected between the second stiffening plates 15, and the second stiffening plates 15 are connected to the outside of the base 01, the second stiffening plate 15 assembly can support the connecting body 2 along the outer side wall of the connecting body 2 to strengthen the structural strength of the connecting body 2. In addition, since the first stiffening plate assembly and the second stiffening plate 15 assembly are connected by a reinforcing ring plate, and the first stiffening plate assembly is spaced apart and connected to the outside of the base 01, the first stiffening plate assembly and the second stiffening plate 15 assembly are connected to form a whole, supporting the base 01 from the outside of the base 01 along the outer side wall of the connecting body 2 and the lower cylinder 3, thereby further strengthening the overall strength of the base 01 and meeting the load-bearing capacity of the base 01.

[0037] The assembly method specifically includes the following steps: S1 welds the lower cylinder 3 to the base 4, and then welds the connecting body 2 to the lower cylinder 3, so that the connecting body 2, the lower cylinder 3 and the base 4 form a whole.

[0038] S2 draws a first reference line 21 through the center of the lower end face of the base 4, and then determines a first calibration point on the first reference line 21, such that the distance from the first calibration point to the center is equal to half the width of the rack. Then, draws a second reference line 22 through the first calibration point, which is parallel to the axis of the base 4, and marks the first positioning point 24 at the intersection of the second reference line 22 and the connecting body 2.

[0039] S3 determines a second calibration point on the first reference straight line 21 that is symmetrical about the center of the circle to the first calibration point, and then marks a second positioning point on the connecting body 2 that is symmetrical about the axis of the base 4 to the first positioning point.

[0040] S4 determines the width of the opening 12 at the first positioning point 24 and the second positioning point according to the width of the teeth on the rack. Then, according to the width of the opening 12, different cutting lines are marked on the connecting body 2, the lower cylinder 3 and the base 4 from the top of the opening 12 to the bottom of the opening 12, and the opening 12 is formed by cutting along the cutting lines; specifically including steps S4.1 to S4.3. S4.1 Draw a third reference line 23 tangent to the outer wall of the connector 2 through the first positioning point 24. Determine a third calibration point 25 on the third reference line 23 based on half the width of the opening 12, such that the distance from the third calibration point 25 to the first positioning point 24 is equal to half the width of the opening 12. Draw a fourth reference line 26 perpendicular to the third reference line 23 through the third calibration point 25. Mark the fourth calibration point 27 at the intersection of the fourth reference line 26 and the connector 2. S4.2 Repeat step S4.1 and mark the fifth calibration point 28 on the connector 2, which is symmetrical to the fourth calibration point 27; S4.3 Mark a first cutting line parallel to the lower end face of the base 4 between the fourth calibration point 27 and the fifth calibration point 28 on the outer wall of the connector 2. Then, make a second cutting line perpendicular to the first cutting line on the outer wall of the connector 2, passing through the fourth calibration point 27 and the fifth calibration point 28 respectively, and extend it to the outer wall of the lower cylinder 3 and the base 4. Cut along the first cutting line and the second cutting line in sequence to form the opening 12.

[0041] S5 welds the first stiffening plate assembly to the outer side wall of the connecting body 2 and the lower cylinder 3, welds the upper cylinder to the connecting body 2, then welds the second stiffening plate to the outer side wall of the connecting body 2 and the lower cylinder 3 on both sides of the opening 12, and welds the second sealing plate perpendicular to the axis of the base 4 at the top of the opening 12. Then, the first sealing plate is welded to the second sealing plate and the second stiffening plate along the second reference straight line 22 to form an integral unit; specifically including steps S5.1 to S5.3; S5.1 Weld a first reinforcing ring plate at the connection between the connecting body 2 and the lower cylinder 3, weld a second reinforcing ring plate at the connection between the lower cylinder 3 and the base 4, then weld a lower stiffening plate between the first reinforcing ring plate and the second reinforcing ring plate, and weld a lower reinforcing panel on the lower stiffening plate. S5.2 Weld an upper stiffening plate to the first reinforcing ring plate, and weld an upper reinforcing panel to the upper stiffening plate. Weld the upper cylinder to the connecting body 2. Then weld a second stiffening plate to the outer side wall of the upper cylinder, the connecting body 2, and the lower cylinder 3 and to both sides of the opening 12. Weld the second stiffening plate to the first reinforcing ring plate and the second reinforcing ring plate respectively. S5.3 The second sealing plate is welded to the top of the opening 12 along the direction perpendicular to the axis of the base 4. At the same time, the second sealing plate is welded to the two second stiffening plates. The first sealing plate is welded to the second sealing plate and the second stiffening plates along the second reference straight line 22 to form an integral unit.

[0042] S6 welds two or more third stiffening plates 33 that are evenly distributed in a circle between the first boss 31 of the connecting body and the second boss 32 of the upper cylinder. The distance between the two third stiffening plates 33 at the corresponding positions of the opening is greater than the width of the opening. Then, baffles 34 that are symmetrically arranged about the opening are welded on the side of the first boss 31 away from the connecting body and the side of the second boss 32 away from the upper cylinder.

[0043] The working principle of this invention is as follows: The position of the opening 12 on the connecting body 2 is determined based on the width of the rack. Then, a cutting line can be determined on the connecting body 2, the lower cylinder 3, and the base 4 based on the width of the opening 12. This allows cutting to form the opening 12 on the connecting body 2, the lower cylinder 3, and the base 4. A second sealing plate perpendicular to the axis of the base 4 is welded to the top of the opening 12. Simultaneously, a first sealing plate is welded between the two second ribs along the second reference straight line 22. This creates a receiving groove connecting the first rib, the second sealing plate, and the second rib to the interior of the base, allowing the rack to... The strip runs through the interior of the base and is housed within it. Since an opening 12 is formed at the connection between the connecting body 2 and the lower cylinder 3, the opening 12 on the base can be reinforced and supported by welding a second stiffening plate assembly at the opening 12, thereby increasing the structural strength of the missing part at the opening 12. At the same time, a first stiffening plate assembly is welded to the outside of the base, and the second stiffening plate assembly is welded to the first stiffening plate assembly to form an integral whole. This provides support to the base from the outside along the outer side wall of the connecting body 2 and the lower cylinder 3, thereby further strengthening the overall strength of the base and meeting the load-bearing requirements of the base.

Claims

1. A rack base compatible assembling method, the base comprising an upper barrel, a connecting body, a lower barrel, a base, a first rib plate assembly and a second rib plate assembly, the second rib plate assembly comprising a first sealing plate, a second sealing plate and two second rib plates; characterized in that: The method comprises the following steps: S1 sequentially forming a connection body, a lower cylinder body and a base into one body; S2 drawing a first reference line through the center of the lower end surface of the base, then determining a first calibration point on the first reference line, making the distance from the first calibration point to the center equal to half the width of the rack, then drawing a second reference line parallel to the base axis through the first calibration point, and marking a first positioning point at the intersection of the second reference line and the connection body; S3 determining a second calibration point on the first reference line which is symmetric to the first calibration point about the center, then marking a second positioning point on the connection body which is symmetric to the first positioning point about the base axis; S4 determining the width of the opening according to the width of the teeth on the rack at the first positioning point and the second positioning point respectively, then marking different cutting lines on the connection body, the lower cylinder body and the base from the top end of the opening to the bottom end of the opening according to the width of the opening, and cutting along the cutting lines to form the opening; S5 welding a first rib plate assembly on the outer side wall of the connection body and the lower cylinder body, welding the upper cylinder body on the connection body, then welding a second rib plate on the outer side wall of the connection body and the lower cylinder body and on both sides of the opening, welding a second sealing plate perpendicular to the base axis at the top end of the opening, then welding the first sealing plate along the second reference line into one body with the second sealing plate and the second rib plate respectively.

2. A method of assembling a rack mount according to claim 1, wherein: The first rib plate assembly and the second rib plate assembly are arranged on the outer side wall of the connection body and the lower cylinder body, the first rib plate assembly and the second rib plate assembly are connected through a reinforcing ring plate assembly, the opening is arranged through the inner and outer side walls of the connection body and the lower cylinder body, the first sealing plate between the second rib plates, the second sealing plate extending horizontally outward from the top end of the opening and perpendicular to the first sealing plate, and the second rib plates form a containing groove inside the base.

3. The method of claim 1, wherein: The reinforcing ring plate assembly comprises a first reinforcing ring plate and a second reinforcing ring plate, the first reinforcing ring plate surrounds the outer side wall at the connection between the connection body and the lower cylinder body, and the second reinforcing ring plate surrounds the outer side wall at the connection between the lower cylinder body and the base.

4. The method of claim 1, wherein: The first rib plate assembly arranged on the outer side wall of the connection body and the lower cylinder body is symmetrically arranged about the second rib plate assembly, the interval distance between the first rib plate assemblies is equal to the interval distance between the first rib plate assembly and the second rib plate assembly, the first rib plate assembly comprises an upper rib plate, a lower rib plate, an upper reinforcing panel and a lower reinforcing panel, one side of the upper rib plate is connected with the outer side of the connection body, the upper reinforcing panel is connected with the other side of the upper rib plate, and the lower ends of the upper rib plate and the upper reinforcing panel are connected with the first reinforcing ring plate; one side of the lower rib plate is connected with the outer side of the lower cylinder body, the lower reinforcing panel is connected with the other side of the lower rib plate, and the two ends of the lower rib plate and the lower reinforcing panel are connected with the first reinforcing ring plate and the second reinforcing ring plate respectively.

5. The method of claim 1, wherein: The two second rib plates are connected on the outer side wall of the connection body and the lower cylinder body, the interval distance between the two second rib plates matches the width of the opening, the opening forms an opening inclined surface on the connection body, the opening forms an opening vertical surface on the lower cylinder body, a first included angle is formed between the opening inclined surface and the opening vertical surface, the opening vertical surface is arranged parallel to the first sealing plate, and a second included angle is formed between the opening inclined surface and the first sealing plate.

6. A method of assembling a rack mount according to claim 1, wherein: The two sides of the first and second sealing plates are connected with two second rib plates respectively, the upper end of the first sealing plate is connected with the second sealing plate, one side of the second rib plate is connected on the outer side wall of the upper cylinder, the connecting body and the lower cylinder, and the side of the second rib plate is connected with the first and second reinforcing ring plates respectively.

7. The method of claim 1, wherein: In step S4, steps S4.1-S4.3 are included; S4.1, a third reference line tangent to the outer side wall of the connecting body is made through the first positioning point, a third calibration point is determined on the third reference line according to half of the opening width, so that the distance from the third calibration point to the first positioning point is equal to half of the opening width, a fourth reference line perpendicular to the third reference line is made through the third calibration point, and a fourth calibration point is marked at the intersection of the fourth reference line and the connecting body; S4.2, step S4.1 is repeated, and a fifth calibration point symmetrically arranged with the fourth calibration point is marked on the connecting body; S4.3, a first cutting line parallel to the lower end surface of the base is marked between the fourth calibration point and the fifth calibration point on the outer side wall of the connecting body, then a second cutting line perpendicular to the first cutting line is made downward through the fourth calibration point and the fifth calibration point on the outer side wall of the connecting body and extended to the outer side wall of the lower cylinder and the base, and the opening is formed by cutting along the first cutting line and the second cutting line in turn.

8. The method of claim 1, wherein: In step S5, steps S5.1-S5.3 are included; S5.1, the first reinforcing ring plate is welded at the connection between the connecting body and the lower cylinder, the second reinforcing ring plate is welded at the connection between the lower cylinder and the base, then the lower rib plate is welded between the first reinforcing ring plate and the second reinforcing ring plate, and the lower reinforcing panel is welded on the lower rib plate; S5.2, the upper rib plate is welded on the first reinforcing ring plate, the upper reinforcing panel is welded on the upper rib plate, the upper cylinder is welded on the connecting body, then the second rib plate is welded on the outer side wall of the upper cylinder, the connecting body and the lower cylinder and located at both sides of the opening, and the second rib plate is welded with the first and second reinforcing ring plates respectively; S5.3, the second sealing plate is welded at the top end of the opening along the direction perpendicular to the base axis, and the second sealing plate is welded with the two second rib plates, and the first sealing plate is welded with the second sealing plate and the second rib plate along the second reference line to form an integral.

9. The method of claim 1, wherein: Step S6 is also included: Two or more third rib plates are welded between the first boss and the second boss, and the distance between the two third rib plates corresponding to the opening is greater than the width of the opening, then the baffle symmetrically arranged with the opening is welded on the side of the first boss away from the connecting body and the side of the second boss away from the upper cylinder.

Citation Information

Patent Citations

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