Supporting device for thin-wall cylinder

Abstract

The utility model relates to a supporting device for a thin-wall cylinder. The supporting device comprises a three-jaw chuck, a plurality of roundness adjusting plates, a flange plate and a supporting ring. The three-jaw chuck comprises a chuck body and three movable clamping jaws, and the chuck body is provided with a central through hole. The multiple roundness adjusting plates are connected with the ends, away from the center through hole, of the three movable clamping jaws, and the multiple roundness adjusting plates are configured to adjust the roundness of the barrel when the three movable clamping jaws are away from the center through hole in the radial direction. And the flange plate is fixed in the central through hole. The supporting ring is detachably connected to the flange plate, and the supporting ring is configured to support the cylinder with the roundness adjusted. According to the supporting device for the thin-wall barrel, by controlling the opening and closing degree of the movable clamping jaw, the roundness of the barrel is adjusted by the roundness adjusting plate when the movable clamping jaw moves in the radial direction, rigid supporting is conducted through the supporting ring, the unfitness of butt joint in the barrel assembling process can be effectively controlled, and the assembling efficiency is improved. And meanwhile, cylinder deformation in the welding process is reduced.

Description

Technical Field

[0001] This disclosure generally relates to the field of cylindrical equipment technology, and more specifically, to a support device for thin-walled cylindrical bodies. Background Technology

[0002] Thin-walled composite plate tower equipment is an important type of equipment widely used in chemical, petroleum, and pharmaceutical industries. Its tower body is typically a cylindrical shape made of thin-walled composite plates. These composite plates are generally formed by combining a base metal with corrosion-resistant and wear-resistant functional layers through a specific process. This ensures both the strength and rigidity of the tower body while meeting the requirements for corrosion resistance under different process conditions. Thin-walled composite plate tower equipment has very high requirements for the misalignment and straightness of the cylindrical shell. Therefore, controlling the misalignment during the assembly process and minimizing the impact of welding deformation during welding have become key aspects of the manufacturing of this type of equipment. Utility Model Content

[0003] In view of this, the present disclosure provides a support device for thin-walled cylinders, which can control the amount of misalignment during cylinder assembly and reduce welding deformation during welding.

[0004] Specifically, this disclosure provides a support device for a thin-walled cylindrical body, comprising a three-jaw chuck, a plurality of roundness adjustment plates, a flange, and a support ring. The three-jaw chuck includes a chuck body and three movable jaws, the chuck body having a central through hole. The plurality of roundness adjustment plates are connected to the ends of the three movable jaws away from the central through hole, and the plurality of roundness adjustment plates are configured to adjust the roundness of the cylindrical body as the three movable jaws move radially away from the central through hole. The flange is fixed within the central through hole. The support ring is detachably connected to the flange, and the support ring is configured to support the cylindrical body after roundness adjustment.

[0005] Optionally, the support ring includes a fixed portion, a supporting portion, and a support rod connecting the fixed portion and the supporting portion. The fixed portion is detachably connected to the flange, and the supporting portion is provided with a plurality of first bolts for supporting the cylinder.

[0006] Optionally, the plurality of first bolts are evenly distributed along the circumferential direction of the support portion.

[0007] Optionally, the flange is a rotatable flange.

[0008] Optionally, the flange includes a first flange fixed to the central through hole and a second flange rotatable relative to the first flange, and the fixed portion is detachably connected to the first flange and the second flange.

[0009] Optionally, the fixing part is connected to the first flange and the second flange by a second bolt.

[0010] Optionally, the plurality of roundness adjustment plates includes three roundness adjustment plates that correspond one-to-one with the three movable jaws.

[0011] Optionally, each of the three roundness adjustment plates has a roller connected to the side of the roundness adjustment plate away from the central through hole.

[0012] Optionally, each of the three roundness adjustment plates is further connected to an inclined fixing rod between itself and the corresponding movable claw.

[0013] Optionally, the three-jaw chuck controls the movement of the movable jaws along the radial direction via a lead screw.

[0014] Compared with the prior art, the support device for thin-walled cylinders provided in this disclosure has at least the following advantages:

[0015] The support device for thin-walled cylinders disclosed herein controls the opening and closing degree of the movable jaws of a three-jaw chuck. This allows a roundness adjustment plate connected to the movable jaws to adjust the roundness of the cylinder as the movable jaws move radially. Once the roundness of the cylinder meets the requirements, it is rigidly supported by a support ring, thus ensuring the roundness of the cylinder. This effectively controls the misalignment during cylinder assembly and reduces cylinder deformation during welding. Furthermore, the support device for thin-walled cylinders disclosed herein has a simple structure, is easy to install and disassemble, facilitates rapid support, and improves production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this disclosure, the embodiments of this disclosure will be further explained and described with reference to the following drawings. These drawings are only used to more conveniently and specifically describe the embodiments of this disclosure and are not intended to limit this disclosure. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a support device for a thin-walled cylinder according to one embodiment of the present disclosure;

[0018] Figure 2 This is a cross-sectional view of a support device for a thin-walled cylinder according to one embodiment of this disclosure; and

[0019] Figure 3 This is a schematic diagram of the structure of a support ring for a support device for a thin-walled cylinder according to one embodiment of the present disclosure.

[0020] In the diagram: 1. Three-jaw chuck; 11. Chuck body; 12. Movable jaws; 13. Center through hole; 2. Roundness adjustment plate; 3. Flange; 31. First flange; 32. Second flange; 4. Support ring; 41. Fixed part; 42. Support part; 43. Support rod; 44. First bolt; 5. Second bolt; 51. Bolt hole; 6. Roller; 7. Inclined fixing rod; 8. Lead screw; 100. Cylinder. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, specific embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. These embodiments are provided by way of example only. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are also within the scope of protection claimed by this disclosure.

[0022] In the description of this disclosure, it should be noted that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0023] In the description of this disclosure, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; 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 disclosure according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0024] One embodiment of this disclosure provides a support device for a thin-walled cylindrical body. For example... Figures 1 to 3As shown, the support device for the thin-walled cylinder includes a three-jaw chuck 1, multiple roundness adjustment plates 2, a flange 3, and a support ring 4. The three-jaw chuck 1 includes a chuck body 11 and three movable jaws 12, the chuck body 11 having a central through-hole 13. The multiple roundness adjustment plates 2 are connected to the ends of the three movable jaws 12 away from the central through-hole 13, and the multiple roundness adjustment plates 2 are configured to adjust the roundness of the cylinder 100 as the three movable jaws 12 move radially away from the central through-hole 13. The flange 3 is fixed within the central through-hole 13. The support ring 4 is detachably connected to the flange 3, and the support ring 4 is configured to support the cylinder 100 after roundness adjustment.

[0025] A three-jaw chuck, also known as a three-jaw self-centering chuck, clamps and positions workpieces using movable jaws. However, in the support device for thin-walled cylinders disclosed herein, by controlling the opening and closing degree of the movable jaws 12 of the three-jaw chuck 1, the roundness adjustment plate 2 connected to the movable jaws 12 adjusts the roundness of the cylinder 100 when the movable jaws 12 move radially away from the central through hole 13. After the roundness of the cylinder 100 meets the requirements, it is rigidly supported by the support ring 4, thereby ensuring the roundness of the cylinder 100. This allows for effective control of the misalignment during cylinder assembly and reduces cylinder deformation during welding. In other words, the three-jaw chuck of this disclosure adjusts the roundness of the cylinder when it is released, which differs from the conventional function of clamping and positioning workpieces.

[0026] In use, the three-jaw chuck 1 and the support ring 4 are fixed together by the flange 3. Then, the movable jaw 12 of the three-jaw chuck 1 is adjusted from the clamped state to the loosened state so that the roundness adjustment plate 2 contacts the inner wall of the cylinder 100. In this way, the overall structure of the three-jaw chuck 1 and the support ring remains stable within the cylinder 100 due to the roundness adjustment plate 2. Next, the opening and closing degree of the movable jaw 12 is controlled to adjust the roundness of the thin wall of the cylinder 100. After the roundness meets the requirements, rigid support is achieved by the support ring 4, thus completing the support of one section of the cylinder 100. When it is necessary to support the next section of the cylinder 100, the connection between the three-jaw chuck 1 and the support ring 4 is loosened, the three-jaw chuck 1 is pushed to the next section of the cylinder 100, and then a new support ring 4 is installed. The above actions are repeated. After the cylinder assembly is completed, the support device is removed. The three-jaw chuck 1 controls the movement of the movable jaw 12 in the radial direction through the lead screw 8. The structure of the three-jaw chuck 1 and the control principle of the lead screw 8 on the movable jaws 12 are well known to those skilled in the art. For example, by rotating the small bevel gear in the three-jaw chuck 1 through the lead screw 8, the large bevel gear is driven to rotate. The flat thread on the back of the large bevel gear will drive the three movable jaws 12 to move simultaneously toward the central through hole 13 or outward. This will not be described in detail here.

[0027] In a preferred embodiment of this disclosure, such as Figure 3As shown, the support ring 4 includes a fixed portion 41, a supporting portion 42, and a support rod 43 connecting the fixed portion 41 and the supporting portion 42. The fixed portion 41 is detachably connected to the flange 3, and the supporting portion 42 is provided with a plurality of first bolts 44 for supporting the cylinder 100. After the roundness of the cylinder meets the requirements, tightening the plurality of first bolts 44 to make them contact the inner wall of the cylinder 100 achieves rigid support. In a preferred example, such as... Figure 1 and Figure 3 As shown, multiple first bolts 44 are evenly distributed along the circumferential direction of the support portion 42 so that the inner wall of the cylinder 100 is evenly stressed, thereby better maintaining the roundness of the cylinder 100.

[0028] In a preferred embodiment of this disclosure, flange 3 is a rotatable flange. Specifically, as... Figure 2 As shown, flange 3 includes a first flange 31 fixed to the central through hole 13 and a second flange 32 rotatable relative to the first flange 31, and a fixing part 41 is detachably connected to the first flange 31 and the second flange 32. In one example, the fixing part 41 is connected to the first flange 31 and the second flange 32 by a second bolt 5. During installation, the fixing part 41 is aligned with the first flange 31, that is, the bolt holes 51 of the fixing part 41 are aligned with the corresponding bolt holes (not shown) of the first flange 31 and the second flange 32. Then, the second bolt 5 is passed sequentially through the bolt holes on the second flange 32, the first flange 31, and the fixing part 41 from the side of the second flange 32, and is fixed by a nut on the side of the fixing part 41 away from the first flange 31. After the support of the cylinder 100 is completed, the support ring 4 is fixed to the cylinder 100. The nut is removed, and then, on the side of the three-jaw chuck 1, the second flange 32 in the central through hole 13 is rotated to cause the second bolt 5 to quickly disengage the second flange 32 and the first flange 31 from the support ring 4, thereby allowing for quick replacement of the support ring 4 and improving work efficiency.

[0029] In a preferred embodiment of this disclosure, the plurality of roundness adjustment plates 2 include three roundness adjustment plates 2 corresponding one-to-one with the three movable claws 12, and a roller 6 is connected to the side of each roundness adjustment plate 2 away from the central through hole 13. The roller 6 allows the entire support device to move flexibly within the cylinder 100, facilitating support operations for the cylinder 100 at different positions. This disclosure does not limit the number of rollers; preferably, there are multiple rollers 6 on each roundness adjustment plate 2, evenly distributed, so that when adjusting the roundness of the cylinder 100, it is not necessary to remove the rollers 6, and roundness adjustment can be achieved through the rollers 6.

[0030] In a preferred embodiment of this disclosure, each roundness adjustment plate 2 is further connected to a tilting fixing rod 7 between itself and the corresponding movable claw 12. This connection method forms a triangular support structure with the movable claw 12, the tilting fixing rod 7, and the roundness adjustment plate 2, which helps improve the stability of the support device.

[0031] It should be understood that the accompanying drawings in the embodiments of this disclosure only relate to structures relevant to the embodiments of this disclosure, while other structures can be referenced to conventional designs. The devices and / or structures in the various embodiments provided in this disclosure can be combined, modified, and / or changed to form new technical solutions. Without inventive effort, these technical solutions should also be included within the scope of protection claimed in this disclosure.

[0032] It should be understood that the specific examples provided in the embodiments described herein are for the purpose of illustrating the embodiments of this disclosure in detail and are not intended to limit the scope of this disclosure. The embodiments in this disclosure can be practiced without these specific examples. In some embodiments, structures and / or techniques well known to those skilled in the art have not been shown in detail so as not to obscure the understanding of this disclosure.

[0033] While preferred embodiments of the present disclosure have been shown and described herein, it will be readily understood by those skilled in the art that these embodiments are provided by way of example only. Various variations, modifications, and substitutions will occur to those skilled in the art without departing from the present disclosure. It should be understood that various alternatives to the embodiments of the present disclosure described herein are optionally used to implement the present disclosure. The scope of the present disclosure is intended to be defined by the appended claims, and thereby covers apparatuses, structures, and their equivalents within the scope of those claims.

Claims

1. A support device for a thin-walled cylindrical body, characterized in that, include: A three-jaw chuck (1) includes a chuck body (11) and three movable jaws (12), and the chuck body (11) is provided with a central through hole (13); Multiple roundness adjustment plates (2) are connected to the ends of the three movable claws (12) away from the central through hole (13), and the multiple roundness adjustment plates (2) are configured to adjust the roundness of the cylinder (100) when the three movable claws (12) move away from the central through hole (13) in the radial direction; Flange (3), said flange (3) being fixed within the central through hole (13); and A support ring (4) is detachably connected to the flange (3) and is configured to support the cylindrical body (100) after the roundness is adjusted.

2. The support device for thin-walled cylinders according to claim 1, characterized in that, The support ring (4) includes a fixed part (41), a support part (42), and a support rod (43) connecting the fixed part (41) and the support part (42). The fixed part (41) is detachably connected to the flange (3), and the support part (42) is provided with a plurality of first bolts (44) for supporting the cylinder (100).

3. The support device for thin-walled cylinders according to claim 2, characterized in that, The plurality of first bolts (44) are evenly distributed along the circumferential direction of the support portion (42).

4. The support device for thin-walled cylinders according to claim 2 or 3, characterized in that, The flange (3) mentioned therein is a rotatable flange.

5. The support device for thin-walled cylinders according to claim 4, characterized in that, The flange (3) includes a first flange (31) fixed to the central through hole (13) and a second flange (32) rotatable relative to the first flange (31), and the fixed part (41) is detachably connected to the first flange (31) and the second flange (32).

6. The support device for thin-walled cylinders according to claim 5, characterized in that, The fixing part (41) is connected to the first flange (31) and the second flange (32) by the second bolt (5).

7. The support device for a thin-walled cylinder according to any one of claims 1-3, characterized in that, The plurality of roundness adjustment plates (2) include three roundness adjustment plates (2) that correspond one-to-one with the three movable claws (12).

8. The support device for thin-walled cylinders according to claim 7, characterized in that, Each of the three roundness adjustment plates (2) has a roller (6) connected to the side away from the central through hole (13).

9. The support device for thin-walled cylinders according to claim 7, characterized in that, Each of the three roundness adjustment plates (2) is also connected to a tilting fixing rod (7) with its corresponding movable claw (12).

10. The support device for a thin-walled cylinder according to any one of claims 1-3, characterized in that, The three-jaw chuck (1) controls the movement of the movable jaw (12) along the radial direction via the lead screw (8).

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