A large-size tank body fixing tool

Abstract

The utility model relates to fixing tool technical field, especially a kind of fixing tool of large size tank body. The utility model embodiment provides a kind of fixing tool of large size tank body, including two parallel sleeve guide rails, the both ends of plate-shaped saddle base are respectively fixed on two described sleeve guide rails, saddle base is fixed on described saddle base structure, the upper portion of saddle base structure is the arc structure matched with tank body shape, two frame bases are further fixed on the both sides of saddle base along the direction of sleeve guide rail, the interval length between two described frame bases is equal to the length of tank body, positioning frame is fixed on each described frame base, the end frame is fixedly connected in positioning frame, the middle part of tank body is placed on the arc structure, and the both ends of tank body are fixedly connected with end frame by connecting arc plate. The utility model embodiment provides a kind of fixing tool of large size tank body, and large size tank body can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of fixing tooling technology, and in particular to a fixing tooling for large-size tanks. Background Technology

[0002] All large-sized tanks (40 inches) containing cryogenic fluids, such as those containing liquid helium, must be secured using fixtures when they need to be moved or subjected to complex loads.

[0003] In this field, there is no effective fixture for fixing large-sized tanks.

[0004] Therefore, in order to address the above problems, there is an urgent need for a fixture capable of securing large-sized tanks. Utility Model Content

[0005] This utility model provides a fixture for fixing large-sized tanks, which can fix large-sized tanks.

[0006] This utility model embodiment provides a fixing fixture for a large-size tank, including two parallel fitting guide rails. The two ends of a plate-shaped saddle base are respectively fixed on the two fitting guide rails. A saddle structure is fixed on the saddle base. The upper part of the saddle structure is an arc-shaped structure that matches the shape of the tank. Two frame bases are also fixed on both sides of the saddle base along the direction of the fitting guide rails. The distance between the two frame bases is equal to the length of the tank. A positioning frame is fixed on each frame base. An end frame is fixedly connected to the positioning frame. The middle part of the tank is placed on the arc-shaped structure. The two ends of the tank are fixedly connected to the end frame through connecting arc plates.

[0007] In one possible design, the two ends of the saddle base are provided with limiting plates that are locked to the outside of the fitting guide rail, and the saddle structure is fixed inside the space enclosed by the two limiting plates.

[0008] In one possible design, the positioning frame is provided with a limiting block, and corner pieces are provided at both ends of the bottom of the end frame, with the limiting block and the corner pieces connected together.

[0009] In one possible design, the saddle base and the saddle structure are fixed together by bolts passing through pre-drilled bolt holes.

[0010] In one possible design, a diagonal support rod is fixedly connected between the side of the positioning frame near the tank and the guide rail pad at the bottom of the fitting guide rail.

[0011] In one possible design, the connecting arc plates are distributed circumferentially along the tank body, and the radius of curvature of the connecting arc plates is consistent with the radius of the cylindrical tank body.

[0012] In one possible design, a tank bottom support frame is connected between the end frame and the saddle structure.

[0013] In one possible design, the bottom support frame of the tank is provided with side reinforcing ribs to support the tank.

[0014] In one possible design, the coaxiality, perpendicularity, and flatness of the positioning frame and the tank body are no more than 1 mm.

[0015] In one possible design, the saddle base is fixed to both sides of the fitting guide rail by spot welding, and the bottom of the frame base is fixed to the fitting guide rail by spot welding.

[0016] Compared with the prior art, the present invention has at least the following advantages: Positioning and fine-tuning of the end frame are achieved by matching the parallelism and flatness of the guide rails. The assembly time is shortened compared to traditional methods, the welding qualification rate is improved, and the application of anti-deformation tooling can reduce the workload of post-weld correction and extend the service life of the tank box.

[0017] The tooling materials must be high-strength alloy steel. A saddle base has been added to the bottom of the supporting tank saddle structure, with a load-bearing capacity of ≥25 tons to ensure the safety of heavy-duty operations of the liquid helium tank. The design reserves operating space for automated welding equipment to meet the needs of intelligent upgrades.

[0018] All structures are integrated into a single tooling platform, reducing process changeover time and improving production efficiency. The modular design allows for quick assembly and disassembly of each module, facilitating tooling maintenance and upgrades. Fine-tuning can compensate for welding deformation errors related to tank ellipticity, tank length, and end frame deformation. Furthermore, this application also features a simple and easy-to-manufacture tooling structure, improved work efficiency, reduced manufacturing costs, and a shorter R&D cycle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a fixing fixture for a large-size tank provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of a large-size tank fixing fixture provided in an embodiment of this utility model after the tank is fixed.

[0021] In the picture: 100-Tank body; 1-Matching guide rail; 2-Saddle base; 3-Saddle structure; 4-Frame base; 5-Positioning frame; 6-End frame; 7-Limiting plate; 8-Limiting block; 9-Diagonal support rod; 10-Connecting arc plate; 11-Tank bottom support frame; 12-Side reinforcing rib; 13-Guide rail pad. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this specification, it should be understood that the directional terms such as "upper" and "lower" used in the description of the embodiments of this utility model are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should also be understood that when it is mentioned that one element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0025] like Figures 1 to 2As shown, this utility model embodiment provides a fixing fixture for a large-size tank 100, including two parallel fitting guide rails 1, and two ends of a plate-shaped saddle base 2 fixed on the two fitting guide rails 1 respectively. A saddle structure 3 is fixed on the saddle base 2. The upper part of the saddle structure 3 is an arc-shaped structure that matches the shape of the tank 100. Two frame bases 4 are also fixed on both sides of the saddle base 2 along the direction of the fitting guide rails 1. The distance between the two frame bases 4 is equal to the length of the tank 100. A positioning frame 5 is fixed on each frame base 4. An end frame 6 is fixedly connected to the positioning frame 5. The middle part of the tank 100 is placed on the arc-shaped structure. The two ends of the tank 100 are fixedly connected to the end frame 6 through connecting arc plates 10.

[0026] This application improves the fixing accuracy of the tank 100 and increases the fault tolerance of the fixing fixture by fixing the saddle base 2 and frame base 4 in stages, and then fixing the saddle structure 3 and positioning frame 5. After fixing the saddle structure 3 and positioning frame 5, the tank 100 can be placed on the arc-shaped structure, and after the two ends are basically aligned with the two positioning frames 5, the position of the end frame 6 is finely adjusted to achieve precise positioning and fixing of the tank 100.

[0027] In some embodiments of this utility model, the two ends of the saddle base 2 are provided with limiting plates 7 that are locked outside the fitting guide rail 1, and the saddle structure 3 is fixed inside the space enclosed by the two limiting plates 7.

[0028] In this embodiment, the limiting plate 7 can achieve precise positioning of the saddle structure 3.

[0029] In some embodiments of this utility model, a limiting block 8 is provided on the positioning frame 5, and corner pieces are provided at both ends of the bottom of the end frame 6, with the limiting block 8 and the corner pieces connected.

[0030] In this embodiment, the connection between the limiting block 8 and the corner piece enables precise positioning of the end frame 6.

[0031] In some embodiments of this utility model, the saddle base 2 and the saddle structure 3 are fixed by bolts passing through the reserved bolt holes.

[0032] In some embodiments of this utility model, a diagonal support rod 9 is fixedly connected between the side of the positioning frame 5 near the tank body 100 and the guide rail pad 13 at the bottom of the fitting guide rail 1.

[0033] In some embodiments of this utility model, the connecting arc plate 10 is distributed along the circumference of the tank body 100, and the radius of curvature of the connecting arc plate 10 is consistent with the radius of the cylindrical tank body 100.

[0034] In some embodiments of this utility model, a tank bottom support frame 11 is connected between the end frame 6 and the saddle structure 3.

[0035] In some embodiments of this utility model, the bottom support frame 11 of the tank is provided with side reinforcing ribs 12 to support the tank 100.

[0036] In some embodiments of this utility model, the coaxiality, perpendicularity, and flatness of the positioning frame 5 and the tank body 100 are no greater than 1 mm.

[0037] In some embodiments of this utility model, the saddle base 2 is fixed to both sides of the fitting guide rail 1 by spot welding, and the bottom of the frame base 4 is fixed to the fitting guide rail 1 by spot welding.

[0038] Specific tank fixing process: Saddle structure placement: Hoist the saddle base onto the fitting guide rails and place it in a suitable position. The bottom end limit plates of the saddle base should be locked onto the outside of the two fitting guide rails. Then hoist the saddle structure onto the saddle base. The placement position should not exceed the limit plate reserved on the top surface of the saddle base.

[0039] Tank positioning: Lift the tank and move it above the saddle structure support arc of the fitting guide rail, then slowly lower it. Adjust the coaxiality, verticality, and flatness of the tank and the fitting guide rail (the 180° direction of the tank is the top, and the 0° direction is the bottom) to meet the requirements. Then, use spot welding to fix the saddle base to both sides of the fitting guide rail. The saddle base and the saddle structure are fixed by bolts passing through the reserved bolt holes.

[0040] Positioning the positioning frame: Measure the total length of the tank according to its current location. Convert the measurement data onto the fitting guide rail, marking the dimensions and corresponding scale marks. Then, hoist the frame base onto the fitting guide rail and position it according to the marked dimensions and scale marks. After initial alignment with the bottom limit of the frame base and the two sides of the fitting guide rail, fix it using spot welding, while reserving 200mm of operating space for the end frame to move forward and backward. Hoist the positioning frame onto both sides of the fitting guide rail again, positioning it according to the marked dimensions and scale marks on the fitting guide rail. Adjust the coaxiality, perpendicularity, and flatness of the positioning frame to not exceed 1mm. Before fixing the positioning frame, confirm that the distance between the positioning points of the front and rear frames meets the requirements, and consider reserving the shrinkage amount for welding the arc plate connecting the tank and the end frame. Then, weld the bottom support legs of the positioning frame to the fitting guide rail pad, and weld the diagonal support rods, adding reinforcing ribs if necessary.

[0041] End frame positioning: Lift the end frame and move it to the frame base, then slowly lower it down. Then slowly move it towards the positioning frame until the corner pieces at both ends of the end frame match the limit blocks on the positioning frame. Then adjust the coaxiality, perpendicularity, and flatness to not exceed 1mm, and fix it by spot welding. Use the same method to assemble the tank body fixing end frame. After confirming that the end frames at both ends meet the requirements, assemble the tank body and the end frame connecting arc plate, the tank body bottom support frame, side reinforcing ribs, etc. After meeting the requirements, fix them by spot welding.

[0042] Fine-tuning and positioning: Equipped with high-precision level, tape measure, laser level, etc., to detect and verify the coaxiality, verticality, and flatness of the tank and end frame with the fitting guide rail as the center, which shall not exceed 1mm and the total length of the tank.

[0043] Inspection and confirmation: The assembly accuracy is checked multiple times by the operators to ensure it meets the requirements before the welding process can proceed.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixture for fixing a large-size tank, characterized in that, The device includes two parallel fitting guide rails. The two ends of a plate-shaped saddle base are respectively fixed to the two fitting guide rails. A saddle structure is fixed on the saddle base. The upper part of the saddle structure is an arc-shaped structure that matches the shape of the tank. Two frame bases are also fixed on both sides of the saddle base along the direction of the fitting guide rails. The distance between the two frame bases is equal to the length of the tank. A positioning frame is fixed on each frame base. An end frame is fixedly connected to the positioning frame. The middle part of the tank is placed on the arc-shaped structure. The two ends of the tank are fixedly connected to the end frame through connecting arc plates.

2. The fixing fixture for a large-size tank according to claim 1, characterized in that, The two ends of the saddle base are provided with limiting plates that are locked to the outside of the fitting guide rail, and the saddle structure is fixed inside the space enclosed by the two limiting plates.

3. The fixing fixture for a large-size tank according to claim 1, characterized in that, The positioning frame is provided with a limiting block, and corner pieces are provided at both ends of the bottom of the end frame. The limiting block and the corner pieces are connected.

4. The fixing fixture for a large-size tank according to claim 1, characterized in that, The saddle base and the saddle structure are fixed together by bolts passing through the reserved bolt holes.

5. The fixing fixture for a large-size tank according to claim 1, characterized in that, An inclined support rod is fixedly connected between the side of the positioning frame near the tank and the guide rail pad at the bottom of the fitting guide rail.

6. The fixture for fixing a large-size tank according to claim 1, characterized in that, The connecting arc plates are distributed along the circumference of the tank, and the radius of curvature of the connecting arc plates is consistent with the radius of the cylindrical tank.

7. The fixture for fixing a large-size tank according to claim 1, characterized in that, A tank bottom support frame is connected between the end frame and the saddle structure.

8. The fixture for fixing a large-size tank according to claim 1, characterized in that, The bottom support frame of the tank is equipped with side reinforcing ribs to support the tank.

9. The fixture for fixing a large-size tank according to claim 1, characterized in that, The coaxiality, perpendicularity, and flatness of the positioning frame and the tank body shall not exceed 1mm.

10. The fixture for fixing a large-size tank according to claim 1, characterized in that, The saddle base is fixed to both sides of the fitting guide rail by spot welding, and the bottom of the frame base is fixed to the fitting guide rail by spot welding.

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