Tumbling device for large diameter thin-walled metal cylinder sections

Abstract

The present invention relates to a flipping device for large-diameter, thin-walled metal cylinder segments, comprising a flipping frame, a rotation adjustment mechanism, a clamping mechanism, a hoisting mechanism, and a traction rope. The flipping frame is a ring-shaped, closed, centrally symmetrical, and / or axially symmetrical structure, in which a large-diameter, thin-walled metal cylinder segment is disposed; the rotation adjustment mechanism is sequentially disposed along the symmetry axis of the flipping frame and connected to the flipping frame; the number of clamping mechanisms is several and is sequentially mounted on the flipping frame at the same angle along the circumference of the flipping frame; the bottom end of the hoisting mechanism is rotationally mounted on the rotation adjustment mechanism; one end of the traction rope is mounted on the flipping frame, and the connection between the traction rope and the flipping frame does not overlap with the installation position of the rotation adjustment mechanism on the flipping frame. The present invention can reduce the number of cranes (cranes) used, reduce occupied space, reduce costs and operational difficulty, and ensure a smooth and safe flipping process.

Description

Technical Field

[0001] The present invention relates to the technical field of rocket tanks, in particular to a turning device applied to large-diameter thin-walled metal cylinder sections. Background Art

[0002] Rocket tanks are a crucial component of a rocket's structure, primarily used to store propellants such as liquid oxygen, liquid hydrogen, and kerosene required for launch. They play a crucial role in the rocket's flight. Generally, rocket tanks are large-diameter, thin-walled cylindrical sections.

[0003] During the welding of rocket tanks, especially when welding in a vertical position, some sections require a 180° flip, vertically or horizontally, to facilitate riveting of the ring and end frames within the sections. Due to the large size of rocket tanks, the flipping process must be smooth and reliable to avoid compromising product quality and potentially causing personal injury.

[0004] Currently, the typical method for flipping large-diameter, thin-walled metal barrel sections, including those used during rocket tank production, involves installing anchor points at each end of the barrel section, connected to separate hooks, and then using two cranes to achieve the flip. This method requires two cranes, occupies a large space, is costly, and can be difficult to operate. Furthermore, it does not guarantee a smooth and safe flipping process.

[0005] Therefore, how to reduce the number of cranes (cranes) used in the process of flipping large-diameter thin-walled metal cylinder segments, thereby reducing occupied space, reducing costs and operating difficulty, while ensuring the smoothness and safety of the flipping process, has become an urgent problem that needs to be solved. Summary of the Invention

[0006] The purpose of the present invention is to provide a turning device for large-diameter thin-walled metal cylinder segments to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a turning device for large-diameter thin-walled metal cylinder segments, comprising a turning frame, a rotation adjustment mechanism, a clamping mechanism, a sling mechanism, and a traction rope, wherein:

[0009] The turnover frame is an annular closed, centrally symmetrical and / or axisymmetric structure, and a large-diameter thin-walled metal cylinder segment is arranged inside the turnover frame;

[0010] The rotation adjustment mechanism is sequentially arranged along the symmetry axis direction of the flip frame, and the rotation adjustment mechanism is connected to the flip frame;

[0011] There are a plurality of clamping mechanisms, which are detachably mounted on the flip frame at the same angle along the circumference of the flip frame. The clamping mechanisms are used to clamp a large-diameter, thin-walled metal cylinder segment.

[0012] The bottom end of the sling mechanism is rotatably mounted on the rotation adjustment mechanism, the sling mechanism is used to sling the flip frame, and the rotation adjustment mechanism is used to adjust the height of the connection between the sling mechanism and the flip frame;

[0013] One end of the traction rope can be detachably mounted on the flip frame, and the connection between the traction rope and the flip frame does not coincide with the installation position of the rotation adjustment mechanism on the flip frame. The traction rope can be used to flip the flip frame with the rotation adjustment mechanism as the rotation axis, and the large-diameter thin-walled metal cylinder section in the flip frame can be flipped.

[0014] According to one embodiment of the present invention, the flip frame is a polygonal structure with an angle.

[0015] According to one embodiment of the present invention, a plurality of the clamping mechanisms are detachably installed in sequence along the circumference of the flip frame at the corners of the flip frame having a polygonal structure.

[0016] According to one embodiment of the present invention, the rotation adjustment mechanism includes a connecting plate detachably mounted on the flip frame, and the connection between the traction rope and the flip frame does not coincide with the installation position of the connecting plate on the flip frame; an adjustment groove is provided on the outer wall of the connecting plate away from the flip frame in the vertical direction, and the adjustment groove is arranged perpendicular to the flip frame, and a plurality of first adjustment holes are provided on the connecting plate, and the plurality of first adjustment holes are located in the adjustment groove and are arranged in sequence along the length direction of the adjustment groove; an adjustment block is provided in the adjustment groove for limiting sliding engagement, and a second adjustment hole is provided on the adjustment block, and the adjustment block is connected to the connecting plate by inserting an adjustment bolt into the second adjustment hole and the first adjustment hole; one end of the adjustment block away from the connecting plate is connected to the bottom end of the sling mechanism for limiting rotation.

[0017] According to one embodiment of the present invention, the sling mechanism includes a sling beam and a sling chain, the bottom end of the sling chain is provided with a sling ring and is detachably connected to the sling ring, the bottom end of the sling ring is rotatably connected to the end of the adjustment block away from the connecting plate; the top end of the sling chain is detachably connected to the sling beam, and the sling beam and the sling chain are used to sling the turnover frame;

[0018] Two ropes are detachably mounted on the top of the beam. The two ropes are symmetrical relative to the center of the beam and form an isosceles triangle structure with the beam. The tops of the two ropes overlap and are connected to the crane.

[0019] According to one embodiment of the present invention, the number of the second adjustment holes is several, and the number of the several first adjustment holes is greater than the number of the several second adjustment holes, and any adjacent first adjustment holes with the same number as the several second adjustment holes are arranged in a one-to-one correspondence with the several second adjustment holes.

[0020] According to one embodiment of the present invention, the clamping mechanism includes a support beam that is detachably mounted at the angle of the flip frame in the horizontal direction, the support beam and the flip frame form a triangular structure at the angle, a clamping screw is fixedly mounted on the outer side of the support beam in the horizontal direction, and the clamping screw is arranged perpendicular to the support beam; a clamping vertical plate is slidably mounted on the clamping screw, and a clamping nut is threaded on the clamping screw, the clamping nut is located on the outer side of the clamping vertical plate, and the clamping nut abuts against the clamping vertical plate; a clamping horizontal plate is fixedly mounted on the end of the clamping vertical plate away from the clamping nut in the horizontal direction, and the end of the clamping horizontal plate away from the clamping vertical plate is an arc-shaped structure and is adapted to the curvature of the outer wall of the large-diameter thin-walled metal cylinder segment, and the clamping horizontal plate is used to clamp the large-diameter thin-walled metal cylinder segment.

[0021] According to one embodiment of the present invention, there are several support beams, and the several support beams are arranged in parallel, there are several clamping screws and they are arranged in sequence along the length direction of the support beams, and there are several clamping horizontal plates and they are arranged in sequence along the height direction of the clamping vertical plates.

[0022] According to one embodiment of the present invention, a clamping limit rod is threadedly connected to the support beam, and the clamping limit rod, the clamping screw and the support beam are all arranged vertically, a waist-round long hole is provided on the clamping horizontal plate, and the length direction of the waist-round long hole is parallel to the length direction of the clamping screw; the clamping limit rod is located in the waist-round long hole and slides with the inner wall of the waist-round long hole, and a clamping limit nut is threaded on the clamping limit rod, and the clamping limit nut is located outside the waist-round long hole and slides with the clamping horizontal plate.

[0023] According to one embodiment of the present invention, a circular plate is sleeved on the flip frame and connected to the inner wall of the circular plate, a traction ring is detachably installed on the circular plate, and the traction rope is sleeved on the traction ring and detachably connected to the traction ring; the connection between the circular plate and the flip frame does not coincide with the installation position of the connecting plate on the flip frame, and the traction rope is detachably connected to the flip frame through the traction ring.

[0024] The present invention has at least the following technical effects:

[0025] The present invention provides a flipping device for large-diameter, thin-walled metal cylinder segments. By arranging a flipping frame, a clamping mechanism, a sling mechanism and a traction rope, the flipping of the large-diameter, thin-walled metal cylinder segment can be completed using only one crane (crane), thereby reducing the occupied space, reducing costs and reducing the difficulty of operation; by arranging a rotation adjustment mechanism, the height of the connection position between the sling mechanism and the flipping frame can be adjusted according to actual conditions, thereby ensuring that the entire flipping axis and the flipping center of gravity of the large-diameter, thin-walled metal cylinder segment are in a coincident state, thereby ensuring the stability and safety of the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the overall structure with large diameter thin-walled metal cylinder sections installed;

[0029] Figure 3 for Figure 1 A partial enlarged view of point A in the middle;

[0030] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0031] Figure 5 Schematic diagram of the overall structure of the clamping horizontal plate and the clamping vertical plate in the present invention;

[0032] Figure 6 This is a schematic diagram of the overall structure of the clamping mechanism in the present invention from a side front view;

[0033] Figure 7This is a schematic diagram of the overall structure of the clamping mechanism of the present invention from a side and rear view;

[0034] Figure 8 Schematic diagram of the turning process of a large-diameter thin-walled metal cylinder segment in the present invention;

[0035] Among them, 1. Flip frame; 2. Support beam; 3. Lifting chain; 4. Lifting beam; 5. Hold the horizontal plate tightly; 6. Hold the nut tightly; 7. Hold the screw rod tightly; 8. Hold the vertical plate tightly; 9. Connecting plate; 10. Traction rope; 11. Adjustment block; 12. Lifting ring; 13. Traction ring; 14. Reciprocating plate; 15. Support beam connecting plate; 16. Hold the limit rod tightly; 17. Hold the limit nut tightly. DETAILED DESCRIPTION

[0036] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purposes, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are used to illustrate the principles of the present invention, and are not configured to limit the present invention. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the dimensions of some structural components or areas in the drawings may be enlarged for other structural components or areas to facilitate understanding of the embodiments of the present invention.

[0037] The directional words appearing in the following description refer to the directions shown in the drawings and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise specified, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0038] In addition, the terms "include", "comprising", "having" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component comprising a series of elements includes not only those elements, but also other mechanical elements not explicitly listed or inherent in the structure or component. In the absence of more limitations, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0039] Spatially relative terms such as "below," "beneath," "under," "low," "above," "on," "high," and the like are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to encompass different orientations of the device in addition to those shown in the figures. Additionally, for example, "one element is above / below another element" may indicate that the two elements are in direct contact, or may indicate that there are other elements between the two elements. Furthermore, terms such as "first," "second," and the like are also used to describe various elements, regions, portions, and the like, and do not specifically refer to an order or sequence, and should not be considered limiting. Similar terms are used throughout the description to indicate similar elements.

[0040] In the following description of the present invention, in certain scenarios, only the terms "rocket", "launch vehicle", "spacecraft", "space vehicle" or "missile" may be used. This is only for the convenience of description, and its connotation is not limited to the specific words used. Generally, the launch vehicle of the present invention includes both space vehicles and rockets used to carry satellites or spacecraft or other probes, as well as similar products that can send payloads into the air. When interpreting the above specific terms, those skilled in the art should not limit the launch vehicle to only one of the space vehicles, rockets or missiles based on the specific words used to describe the scenario, thereby narrowing the scope of protection of the present invention.

[0041] For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0042] The present invention provides a turning device for large-diameter thin-walled metal cylinder segments, comprising a turning frame 1, a rotation adjustment mechanism, a clamping mechanism, a sling mechanism, and a traction rope 10, wherein:

[0043] The turning frame 1 may be a polygonal structure with an included angle, an annular enclosure, central symmetry, and / or axisymmetry, such as a square structure, a hexagonal structure, or an octagonal structure. In this embodiment, the turning frame 1 is preferably a hexagonal structure, and the large-diameter, thin-walled metal cylinder segment is located within the hexagonal turning frame 1. That is, the turning frame 1 is used to accommodate the large-diameter, thin-walled metal cylinder segment.

[0044] The rotation adjustment mechanisms are sequentially arranged along the symmetry axis direction of the flip frame 1 . Preferably, there are two rotation adjustment mechanisms. The rotation adjustment mechanisms are connected to the flip frame 1 , preferably in a detachable manner.

[0045] There are several clamping mechanisms, which are sequentially arranged along the circumference of the flip frame 1. The clamping mechanisms are detachably arranged on the flip frame 1 at the same angle with the center of the flip frame 1 as the center of the circle. The clamping mechanisms are used to clamp large-diameter thin-walled metal cylinder segments.

[0046] In the present invention, the number of the holding mechanisms is not particularly limited, and those skilled in the art can adjust it according to actual needs. Figure 1 The number of the holding mechanisms can be six, and they can be detachably installed at the six corners of the hexagonal flip frame 1 along the circumference of the flip frame 1 in sequence.

[0047] In this embodiment, referring to Figure 1 The two rotation adjustment mechanisms are symmetrically and removably mounted on the linear frame (i.e., the sides of the hexagonal structure) of the hexagonal flip frame 1, and are located in the center of the linear frame. The clamping mechanisms on either side of any rotation adjustment mechanism can be symmetrical with the rotation adjustment mechanism between them as the symmetry axis.

[0048] The bottom end of the sling mechanism is rotatably mounted on the rotation adjustment mechanism, and the sling mechanism can be used to lift the flip frame 1. The rotation adjustment mechanism can be used to adjust the height of the connection between the sling mechanism and the flip frame 1, and the sling mechanism is connected to an external crane (not shown in the figure).

[0049] One end of the traction rope 10 can be detachably mounted on the flip frame 1. The connection between the traction rope 10 and the flip frame 1 does not coincide with the installation position of the rotation adjustment mechanism on the flip frame 1, so it will be located between the two rotation adjustment mechanisms. Through the traction rope 10, the flip frame 1 can be flipped with the rotation adjustment mechanism as the rotation axis, and the large-diameter thin-walled metal tube section in the flip frame 1 can be flipped.

[0050] In this embodiment, referring to Figure 1 or Figure 2 The connection between the traction rope 10 and the flip frame 1 is located in the middle of the two rotation adjustment mechanisms. In other words, the two rotation adjustment mechanisms can be arranged symmetrically with the connection between the traction rope 10 and the flip frame 1 as the axis. The connection between the traction rope 10 and the flip frame 1 is located at the angle of the hexagonal structure of the flip frame 1. This arrangement allows workers to grasp and pull the traction rope 10 to flip the large-diameter thin-walled metal cylinder segment, providing maximum labor-saving effect.

[0051] When the tooling device of the present invention is used, first, a worker uses a crane to lift the tooling device in a vertical direction and stops after lifting it to a certain height.

[0052] Then, the large-diameter thin-walled metal cylinder section to be flipped is placed at the bottom of the hoisted tooling; after placement, the tooling is lowered, and the flipping frame 1 is sleeved on the outside of the large-diameter thin-walled metal cylinder section.

[0053] Then, adjust the height of the flip frame 1 and use the rotation adjustment mechanism to adjust the height of the connection position between the sling mechanism and the flip frame 1 to ensure that the entire flip axis coincides with the flip center of gravity of the large-diameter thin-walled metal tube segment.

[0054] Finally, the six clamping mechanisms are used to clamp the large-diameter, thin-walled metal cylinder segment in the flip frame 1 , thereby firmly connecting the flip frame 1 to the large-diameter, thin-walled metal cylinder segment.

[0055] After holding tightly, refer to Figure 8 The staff holds one end of the traction rope 10 away from the flip frame 1, and stands on the side of the flip frame 1 to pull the traction rope 10 along the rotation direction of the rotation adjustment mechanism to complete the flipping of the large-diameter thin-walled metal cylinder segment.

[0056] When using the clamping mechanisms to clamp the large-diameter, thin-walled metal cylinder, the operator can first use the two opposing clamping mechanisms to clamp the large-diameter, thin-walled metal cylinder. In other words, first use the clamping mechanisms symmetrically positioned on either side of the axis of symmetry of the flip frame 1 to clamp the large-diameter, thin-walled metal cylinder. Then, use the other two symmetrical clamping mechanisms, and so on, to complete the clamping of the large-diameter, thin-walled metal cylinder. This allows the large-diameter, thin-walled metal cylinder to be clamped firmly in the center of the flip frame 1, preventing it from shifting.

[0057] When turning over a large diameter thin wall metal cylinder, the worker will stand on the side of the turning frame 1 instead of the bottom of the turning frame 1, thus preventing the large diameter thin wall metal cylinder from falling and injuring the worker. When turning over, the connection between the traction rope 10 and the turning frame 1 will pass under the rotation adjustment mechanism instead of passing over the rotation adjustment mechanism. For example, referring to Figure 8 , Figure 8 This is a schematic diagram of a large-diameter, thin-walled metal cylinder segment being flipped. In this embodiment, the traction rope 10 is arranged on the right side of the flipping frame 1. Therefore, when the large-diameter, thin-walled metal cylinder segment needs to be flipped, the flipping direction should be clockwise, not counterclockwise, so that the traction rope 10 will not be entangled with the sling mechanism, thereby ensuring the smooth progress of the flipping work.

[0058] According to one embodiment of the present invention, referring to Figure 3Both rotation adjustment mechanisms include a connecting plate 9 that is detachably mounted on the outer wall of the flip frame 1. The connection point between the traction rope 10 and the flip frame 1 does not coincide with the installation position of the connecting plate 9 on the flip frame 1. Preferably, the connection point between the traction rope 10 and the flip frame 1 is located in the middle position between the two connecting plates 9. The straight line connecting the connection point between the traction rope 10 and the flip frame 1 and the center of the flip frame 1 is the axis of symmetry of the two connecting plates 9. An adjustment slot is provided in the vertical direction on the outer wall of the connecting plate 9 away from the flip frame 1, and the adjustment slot is arranged perpendicular to the flip frame 1. A plurality of first adjustment holes are provided on the connecting plate 9. The plurality of first adjustment holes are located in the adjustment slot and are arranged sequentially along the length direction of the adjustment slot. An adjusting block 11 is fitted in the adjusting groove for limiting sliding. A second adjusting hole is provided on the adjusting block 11. The first adjusting hole and the second adjusting hole are threaded with the same adjusting bolt (not shown in the figure). The adjusting block 11 is inserted into the second adjusting hole and the first adjusting hole and is connected to the connecting plate 9 through the adjusting bolt. The adjusting block 11 can be detachably connected to the connecting plate 9 through the adjusting bolt. The end of the adjusting block 11 away from the connecting plate 9 is connected to the bottom end of the sling mechanism for limiting rotation.

[0059] According to one embodiment of the present invention, referring to Figure 3 The sling mechanism includes a sling beam 4 and a sling chain 3. The bottom end of the sling chain 3 is provided with a sling ring 12 and is detachably connected to the sling ring 12. The sling chain 3 and the sling ring 12 can be connected in a knot-like manner. For example, Figure 3 As shown, the bottom end of the lifting ring 12 and the end of the adjusting block 11 away from the connecting plate 9 can be mutually limited and rotated. Through the provision of the lifting ring 12, the lifting chain 3 can be installed and removed on the adjusting block 11 more conveniently.

[0060] In this embodiment, referring to Figure 1 or Figure 2 There are two lifting chains 3, and the top ends of the two lifting chains 3 are detachably connected to the bottom ends of the lifting beam 4. For example, the detachable connection can be a connection by bolts, and the connection points of the two lifting chains 3 and the lifting beam 4 are symmetrically arranged at the center position of the lifting beam 4.

[0061] Two ropes connected to the crane are detachably installed at the top of the hanging beam 4. The two ropes are symmetrical with respect to the center of the hanging beam 4 and form an isosceles triangle structure with the hanging beam 4. The top ends of the two ropes overlap and are connected to the crane.

[0062] In this embodiment, referring to Figure 3 The number of first adjustment holes is preferably nine, and the number of second adjustment holes is a plurality, and the number of the nine first adjustment holes is greater than the number of the plurality of second adjustment holes. Preferably, the number of second adjustment holes is three, and the three second adjustment holes are arranged in a one-to-one correspondence with any three adjacent first adjustment holes.

[0063] In the present invention, when the height of the connection point between the hoisting chain 3 and the flip frame 1 needs to be adjusted according to actual conditions, the operator can adjust the adjustment block 11 up and down in the adjustment slot of the connecting plate 9. After the adjustment is completed, the adjustment bolts are tightened in the first and second adjustment holes to fix the adjustment block 11 to the connecting plate 9, thereby completing the height adjustment of the connection point between the hoisting chain 3 and the flip frame 1, thereby ensuring that the entire flip axis can subsequently coincide with the flip center of gravity of the large-diameter thin-walled metal cylinder segment.

[0064] According to one embodiment of the present invention, referring to Figure 4 The clamping mechanism includes a support beam 2 that is detachably mounted horizontally at the angle of the flip frame 1. The angle between the support beam 2 and the flip frame 1 forms a triangular structure, preferably an isosceles triangle structure. A clamping screw 7 is fixedly mounted horizontally on the outer side of the support beam 2 (i.e., the end away from the large-diameter, thin-walled metal tube segment). The clamping screw 7 is perpendicular to the support beam 2, and a clamping vertical plate 8 is slidably mounted on the clamping screw 7 (i.e., the clamping vertical plate 8 is slidable relative to the length direction of the clamping screw 7). A clamping nut 6 is threadedly engaged with the clamping screw 7. The clamping nut 6 is located on the outer side of the clamping vertical plate 8 (i.e., the end away from the large-diameter, thin-walled metal tube segment), and the clamping nut 6 abuts against the clamping vertical plate 8. A clamping horizontal plate 5 is fixedly mounted horizontally on the end of the clamping vertical plate 8 away from the clamping nut 6. The clamping horizontal plate 5 is preferably perpendicular to the clamping vertical plate 8. One end of the clamping horizontal plate 5 away from the clamping vertical plate 8 is an arc-shaped structure and is adapted to the outer wall curvature of the large-diameter thin-walled metal cylinder segment. The clamping horizontal plate 5 is used to clamp the large-diameter thin-walled metal cylinder segment.

[0065] In this embodiment, referring to Figure 4 and Figure 6 Each clamping mechanism includes several support beams 2, preferably two, which are detachably connected to the top and bottom ends of the flip frame 1, respectively. Specifically, the two support beams 2 are arranged in parallel. Several clamping screws 7 are provided, preferably two on each support beam 2, and the two clamping screws 7 are arranged sequentially along the length of the support beam 2. Several clamping cross plates 5 are provided, preferably two, and are symmetrically arranged above and below the clamping vertical plates 8 along their height.

[0066] In the present invention, the provision of two support beams 2 can make the overall structure of the clamping mechanism more solid, and the provision of two clamping screws 7 and two clamping horizontal plates 5 can not only increase the clamping force, but also simultaneously clamp the large-diameter thin-walled metal cylinder segment at the upper and lower parts of the clamping vertical plate 8, further improving the stability of the firmness of the clamping of the large-diameter thin-walled metal cylinder segment.

[0067] In the present invention, when it is necessary to clamp the large-diameter thin-walled metal cylinder segment, the staff can first screw inward one of the clamping nuts 6 in the clamping mechanism. At this time, the clamping nut 6 will push the clamping vertical plate 8 to slide on the clamping screw 7 in the direction of the large-diameter thin-walled metal cylinder segment, thereby making the clamping vertical plate 8 move toward the direction of the large-diameter thin-walled metal cylinder segment at the same time as the clamping horizontal plate 5 under the push of the clamping nut 6, and continue to screw this after the clamping horizontal plate 5 contacts the outer wall of the large-diameter thin-walled metal cylinder segment. The clamping nut 6 is tightened until it cannot be twisted anymore. At this time, the clamping horizontal plate 5 can be firmly clamped to the outer wall of the large-diameter thin-walled metal cylinder segment through the static friction between the clamping nut 6 and the clamping vertical plate 8; then, the other clamping nuts 6 are screwed inward until they touch the clamping vertical plate 8 and continue to be twisted until they cannot be twisted anymore. In this way, the clamping vertical plate 8 can be better fixed by the static friction between the other clamping nuts 6 and the clamping vertical plate 8, thereby further increasing the firmness of the clamping of the large-diameter thin-walled metal cylinder segment.

[0068] According to one embodiment of the present invention, an anti-slip layer (not shown in the figure) is fixedly installed in the arc-shaped structure of the clamping cross plate 5. The anti-slip layer can be a high-temperature resistant rubber, such as silicone rubber, fluororubber, etc. Silicone rubber and fluororubber are existing materials known to those skilled in the art and will not be described in detail here. This can increase the friction between the outer wall of the large-diameter thin-walled metal cylinder segment and the clamping cross plate 5, and can further prevent the large-diameter thin-walled metal cylinder segment from falling off the tooling when the clamping cross plate 5 clamps the large-diameter thin-walled metal cylinder segment, thereby ensuring the smooth progress of the flipping work; at the same time, the high-temperature resistant rubber can also play a buffering role when the clamping cross plate 5 contacts the large-diameter thin-walled metal cylinder segment, thereby avoiding damage to the large-diameter thin-walled metal cylinder segment during the clamping process.

[0069] According to one embodiment of the present invention, referring to Figure 4 In this embodiment, a support beam connecting plate 15 is provided at the connection between the support beam 2 and the tilt frame 1. The support beam connecting plate 15 has a rectangular structure and is fixedly connected to the support beam 2. The support beam connecting plate 15 is detachably connected to the tilt frame 1 at the four corners of its rectangular structure via four bolts. The detachable connection between the support beam 2 and the tilt frame 1 via the support beam connecting plate 15 further ensures the stability of the connection between the support beam 2 and the tilt frame 1.

[0070] According to one embodiment of the present invention, referring to Figure 7, a clamping limit rod 16 is threadedly connected to the support beam 2. Preferably, the clamping limit rod 16 passes through the two support beams 2 in each clamping mechanism and is threadedly connected to the two support beams 2 in each clamping mechanism, and the clamping limit rod 16 is perpendicular to the clamping screw 7 and the support beam 2. A waist-shaped long hole is provided on the clamping horizontal plate 5, and the length direction of the waist-shaped long hole is parallel to the length direction of the clamping screw 7. The clamping limit rod 16 is located in the waist-shaped long hole and slides with the inner wall of the waist-shaped long hole. A clamping limit nut 17 is threadedly engaged on the clamping limit rod 16, and the clamping limit nut 17 is outside the waist-shaped long hole. Preferably, the clamping limit nut 17 is located at the end of the clamping horizontal plate 5 away from the support beam 2 and slides with the clamping horizontal plate 5.

[0071] When the lever 7 is in the unlocked position, the lever 7 is in the unlocked position, and the locking nut 17 is in the unlocked position, so that the lever 7 is unlocked and the locking nut 17 is unlocked.

[0072] According to one embodiment of the present invention, referring to Figure 7 In this embodiment, there are two clamping limit rods 16, arranged sequentially along the length of the support beam 2. Correspondingly, each clamping plate 5 also has two oblong holes, and the two clamping limit rods 16 are respectively located within the two oblong holes and slidably engage with them. The provision of two clamping limit rods 16, compared to a single clamping limit rod 16, further ensures the stability of the clamping plate 5 during the clamping process. Furthermore, the clamping limit nuts 17 on the two clamping limit rods 16 can support the weight of the large-diameter, thin-walled metal tube segment, further preventing the clamping screw 7 from bending and ensuring smooth flipping.

[0073] In addition, in the present invention, the installation of the clamping horizontal plate 5 and the clamping vertical plate 8 on the support beam 2 is a quick-release and quick-change design. The staff can quickly replace the clamping horizontal plate 5 and the clamping vertical plate 8 on the support beam 2 according to different work needs, which further increases the convenience. For example:

[0074] The present invention can be applied to the flipping of thin-walled metal cylinder sections with a diameter of φ4200. However, when thin-walled metal cylinder sections with different diameters need to be flipped, it is necessary to replace the clamping cross plates 5 with different curvatures to adapt to thin-walled metal cylinder sections with different diameters. At this time, the staff can screw the clamping nut 6 outward and remove it, and then screw the clamping limit nut 17 outward and remove it, thereby quickly removing the clamping cross plate 5 and the clamping vertical plate 8 from the support beam 2. Then, according to the diameter of the thin-walled metal cylinder section at this time, the clamping cross plate 5 with the corresponding curvature can be selected and installed on the clamping vertical plate 8. Finally, the above operation is repeated in reverse, and the clamping vertical plate 8 and the clamping cross plate 5 with the corresponding curvature can be quickly installed on the support beam 2, thereby realizing the quick disassembly and replacement of the clamping cross plate 5 and the clamping vertical plate 8 on the support beam 2.

[0075] According to one embodiment of the present invention, a circular plate 14 is sleeved on the flip frame 1, and the flip frame 1 is connected to the inner wall of the circular plate 14, preferably fixedly. A traction ring 13 is detachably mounted on the circular plate 14, and the traction rope 10 is sleeved on the traction ring 13 and detachably connected to the traction ring 13. The connection between the circular plate 14 and the flip frame 1 does not coincide with the installation position of the connecting plate 9 on the flip frame 1. Preferably, the circular plate 14 is located between the two connecting plates 9, and the line connecting the center of the circular plate 14 and the flip frame 1 is the axis of symmetry between the left and right connecting plates 9. The traction rope 10 is detachably connected to the flip frame 1 via the traction ring 13.

[0076] In this embodiment, referring to Figure 4 The circular plate 14 is fixedly mounted at the angle of the hexagonal structure of the flip frame 1. The traction ring 13 is detachably connected to the circular plate 14 via bolts and is located on the outer wall of the circular plate 14, away from the interior of the flip frame 1. The traction rope 10 can be connected to the traction ring 13 using a knot or other detachable connection method; the provision of the circular plate 14 can enhance the secure connection between the traction rope 10 and the flip frame 1.

[0077] In addition, refer to Figure 4 Since the circular plate 14 is located at the angle of the hexagonal structure of the flip frame 1, the setting of the circular plate 14 can also make the straight frames on the two adjacent flip frames 1 on the left and right (that is, the two adjacent sides of the hexagonal structure) more firmly connected, further improving the firmness and stability of the flip frame 1.

[0078] In the present invention, the detachable connection method may be a bolt connection, or other detachable connection methods known to those skilled in the art, which will not be described in detail here.

[0079] In the present invention, the rotational connection may be through a bearing, or other rotational connection methods known to those skilled in the art, which will not be described in detail here.

[0080] The above embodiments of the present invention can be combined with each other and have corresponding technical effects.

[0081] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turning device for large diameter thin-walled metal cylinder segments, characterized in that: It comprises a turning frame (1), a rotation adjustment mechanism, a clamping mechanism, a sling mechanism and a traction rope (10), wherein: The turnover frame (1) is an annular closed, centrally symmetrical and / or axisymmetric structure, and a large-diameter thin-walled metal cylinder segment is arranged inside the turnover frame (1); The rotation adjustment mechanism is sequentially arranged along the symmetry axis direction of the flip frame (1), and the rotation adjustment mechanism is connected to the flip frame (1); The number of the clamping mechanisms is several and they are detachably mounted on the flip frame (1) at the same angle along the circumference of the flip frame (1), and the clamping mechanisms are used to clamp a large-diameter thin-walled metal cylinder segment; The bottom end of the sling mechanism is rotatably mounted on the rotation adjustment mechanism, the sling mechanism is used to suspend the flip frame (1), and the rotation adjustment mechanism is used to adjust the height of the connection between the sling mechanism and the flip frame (1); One end of the traction rope (10) is detachably mounted on the flip frame (1); the connection between the traction rope (10) and the flip frame (1) does not coincide with the installation position of the rotation adjustment mechanism on the flip frame (1); the traction rope (10) can be used to flip the flip frame (1) with the rotation adjustment mechanism as the rotation axis, and the large-diameter thin-walled metal cylinder section in the flip frame (1) can be flipped; The flip frame (1) is a polygonal structure with an angle; A plurality of the clamping mechanisms are detachably mounted in sequence along the circumference of the flip frame (1) at the angles of the flip frame (1) having a polygonal structure; The clamping mechanism comprises a support beam (2) detachably mounted at the angle of the flip frame (1) in the horizontal direction, the support beam (2) and the flip frame (1) forming a triangular structure at the angle, a clamping screw (7) fixedly mounted on the outer side of the support beam (2) in the horizontal direction, the clamping screw (7) and the support beam (2) being arranged perpendicularly; a clamping vertical plate (8) is slidably mounted on the clamping screw (7), a clamping nut (6) is threadedly engaged on the clamping screw (7), the clamping nut (6) is located on the outer side of the clamping vertical plate (8), and the clamping nut (6) abuts against the clamping vertical plate (8); a clamping horizontal plate (5) is fixedly mounted on the end of the clamping vertical plate (8) away from the clamping nut (6) in the horizontal direction; The support beam (2) is threadedly connected with a clamping limit rod (16), and the clamping limit rod (16) and the clamping screw (7) and the support beam (2) are all arranged vertically. The clamping horizontal plate (5) is provided with a waist-round long hole, and the length direction of the waist-round long hole is parallel to the length direction of the clamping screw (7); the clamping limit rod (16) is located in the waist-round long hole and slides with the inner wall of the waist-round long hole, and the clamping limit nut (17) is threadedly engaged on the clamping limit rod (16), and the clamping limit nut (17) is located outside the waist-round long hole and slides with the clamping horizontal plate (5).

2. The turning device for large-diameter thin-walled metal cylinder segments according to claim 1 is characterized in that: The rotation adjustment mechanism includes a connecting plate (9) detachably mounted on the flip frame (1), and the connection between the traction rope (10) and the flip frame (1) does not coincide with the installation position of the connecting plate (9) on the flip frame (1); an adjustment groove is provided on the outer wall of the connecting plate (9) away from the flip frame (1) in the vertical direction, and the adjustment groove is arranged perpendicular to the flip frame (1); a plurality of first adjustment holes are provided on the connecting plate (9), and the plurality of first adjustment holes are located in the adjustment groove and are arranged in sequence along the length direction of the adjustment groove; an adjustment block (11) is provided in the adjustment groove for limited sliding engagement, and a second adjustment hole is provided on the adjustment block (11), and the adjustment block (11) is connected to the connecting plate (9) by inserting an adjustment bolt into the second adjustment hole and the first adjustment hole; one end of the adjustment block (11) away from the connecting plate (9) is connected to the bottom end of the sling mechanism for limited rotation.

3. The turning device for large-diameter thin-walled metal cylinder segments according to claim 2 is characterized in that: The hoisting mechanism comprises a hoisting beam (4) and a hoisting chain (3); the bottom end of the hoisting chain (3) is provided with a hoisting ring (12) and is detachably connected to the hoisting ring (12); the bottom end of the hoisting ring (12) is connected to the end of the regulating block (11) away from the connecting plate (9) in a limited rotation manner; the top end of the hoisting chain (3) is detachably connected to the hoisting beam (4); the hoisting beam (4) and the hoisting chain (3) are used to hoist the turnover frame (1); Two ropes are detachably mounted on the top of the hanging beam (4); the two ropes are symmetrical relative to the center of the hanging beam (4) and form an isosceles triangle structure with the hanging beam (4); the tops of the two ropes overlap and are connected to the crane.

4. The turning device for large-diameter thin-walled metal cylinder segments according to claim 2 is characterized in that: The number of the second adjustment holes is several, and the number of the several first adjustment holes is greater than the number of the several second adjustment holes. Any adjacent first adjustment holes with the same number as the several second adjustment holes are arranged in a one-to-one correspondence with the several second adjustment holes.

5. The turning device for large-diameter thin-walled metal cylinder segments according to claim 1 is characterized in that: One end of the clamping horizontal plate (5) away from the clamping vertical plate (8) is an arc-shaped structure and is adapted to the curvature of the outer wall of the large-diameter thin-walled metal cylinder segment. The clamping horizontal plate (5) is used to clamp the large-diameter thin-walled metal cylinder segment.

6. The turning device for large-diameter thin-walled metal cylinder segments according to claim 1 is characterized in that: The number of the support beams (2) is several, and the several support beams (2) are all arranged in parallel, the number of the clamping screw rods (7) is several and they are arranged in sequence along the length direction of the support beams (2), and the number of the clamping horizontal plates (5) is several and they are arranged in sequence along the height direction of the clamping vertical plates (8).

7. The turning device for large-diameter thin-walled metal cylinder segments according to claim 2 is characterized in that: A circular plate (14) is sleeved on the flip frame (1) and connected to the inner wall of the circular plate (14); a traction ring (13) is detachably mounted on the circular plate (14); the traction rope (10) is sleeved on the traction ring (13) and detachably connected to the traction ring (13); the connection between the circular plate (14) and the flip frame (1) does not coincide with the installation position of the connecting plate (9) on the flip frame (1); the traction rope (10) is detachably connected to the flip frame (1) through the traction ring (13).

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