Turnover device applied to large-diameter thin-wall metal barrel section

Abstract

The invention relates to a turnover device applied to a large-diameter thin-wall metal cylinder section. The turnover device comprises a turnover frame, a rotation adjusting mechanism, a holding mechanism, a lifting appliance mechanism and a traction rope. The overturning frame is of an annular closed, centrosymmetric and / or axisymmetric structure, and a large-diameter thin-wall metal barrel section is arranged in the overturning frame; the rotation adjusting mechanisms are sequentially arranged in the symmetry axis direction of the overturning frame and connected with the overturning frame. The multiple holding mechanisms are sequentially installed on the overturning frame in the circumferential direction of the overturning frame at the same angle. The bottom end of the lifting appliance mechanism is rotationally mounted on the rotary adjusting mechanism; one end of the traction rope is installed on the overturning frame, and the joint of the traction rope and the overturning frame does not coincide with the installation position of the rotation adjusting mechanism on the overturning frame. The use number of cranes (cranes) can be reduced, the occupied space is reduced, the cost and the operation difficulty are reduced, and the stability and safety of the overturning process are guaranteed.

Description

Technical Field

[0001] The 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 an important part of the rocket body structure. They are mainly used to store propellants required for rocket launch, such as liquid oxygen, liquid hydrogen, kerosene, etc. They play a vital role in the rocket flight process. In general, rocket tanks are large-diameter cylindrical thin-walled tube sections.

[0003] When welding rocket tanks, especially when they are welded in a vertical position, some barrel sections need to be flipped 180 degrees in the vertical direction to facilitate the riveting of the ring frame and end frame inside the barrel section. Due to the large volume of rocket tanks, the flipping process must be smooth and reliable to avoid damage to the tank product quality and personal safety accidents.

[0004] At present, the flipping of large-diameter thin-walled metal barrel segments, including the flipping during the production of rocket tanks, is usually done by installing anchor points at both ends of the barrel segment, connecting the anchor points to different hooks, and using two cranes to work together to flip the barrel segment. This flipping method requires the cooperation of two cranes (cranes), occupies a large space, is costly, and is difficult to operate. In addition, this flipping method cannot guarantee the stability and safety of the flipping process.

[0005] Therefore, how to reduce the number of cranes (hoists) 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 a problem that needs to be solved urgently. 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: The present invention provides a turning device for a large-diameter thin-walled metal tube segment, comprising a turning frame, a rotation adjustment mechanism, a clamping mechanism, a sling mechanism and a traction rope, wherein: The turnover frame is a ring-shaped closed, centrally symmetrical and / or axisymmetric structure, and a large-diameter thin-walled metal cylinder segment is arranged inside the turnover frame; 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; The number of the clamping mechanisms is several and they are detachably mounted on the flip frame at the same angle along the circumference of the flip frame in sequence, 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 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; One end of the traction rope is 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.

[0008] According to an embodiment of the present invention, the flip frame is a polygonal structure with an angle.

[0009] According to an 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 angles of the flip frame of the polygonal structure.

[0010] 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 point 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 vertically arranged 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 sequentially along the length direction of the adjustment groove; an adjustment block is provided in the adjustment groove for limited sliding cooperation, 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 limited rotation.

[0011] According to one embodiment of the present invention, the sling mechanism comprises a sling beam and a sling chain, the bottom end of the sling chain is sleeved with a sling ring and is detachably connected to the sling ring, the bottom end of the sling ring is limitedly rotatably connected to an 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 flip frame; Two ropes are detachably mounted on the top of the hanging beam. The two ropes are symmetrical relative to the center of the hanging beam and form an isosceles triangle structure with the hanging beam. The tops of the two ropes overlap and are connected to the crane.

[0012] 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 having the same number as the several second adjustment holes are arranged in a one-to-one correspondence with the several second adjustment holes.

[0013] According to one embodiment of the present invention, the clamping mechanism includes a support beam which is detachably installed at the angle of the flip frame in the horizontal direction, and the angle between the support beam and the flip frame forms a triangular structure. A clamping screw is fixedly installed on the outer side of the support beam in the horizontal direction, and the clamping screw is vertically arranged to the support beam; a clamping vertical plate is slidably installed on the clamping screw, and a clamping nut is threaded on the clamping screw, and the clamping nut is located on the outer side of the clamping vertical plate, and the clamping nut is abutted against the clamping vertical plate; a clamping cross plate is fixedly installed on the end of the clamping vertical plate away from the clamping nut in the horizontal direction, and the end of the clamping cross plate away from the clamping vertical plate is an arc-shaped structure and is adapted to the outer wall curvature of the large-diameter thin-walled metal cylinder segment, and the clamping cross plate is used to clamp the large-diameter thin-walled metal cylinder segment.

[0014] 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 screw rods, 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.

[0015] 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 opened 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 slidingly cooperates with the inner wall of the waist-round long hole, and a clamping limit nut is threadedly cooperated on the clamping limit rod, and the clamping limit nut is located outside the waist-round long hole and slidingly cooperates with the clamping horizontal plate.

[0016] 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.

[0017] The present invention has at least the following technical effects: The present invention provides a flipping device applied to 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 with only one crane (crane), thereby reducing the occupied space, reducing the cost 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

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the overall structure with large diameter thin-walled metal cylinder sections installed; Figure 3 for Figure 1 A partial enlarged view of the middle A; Figure 4 for Figure 1 A partial enlarged view of point B in the middle; Figure 5 It is a schematic diagram of the overall structure of the clamping horizontal plate and the clamping vertical plate in the present invention; Figure 6 It is a schematic diagram of the overall structure of the clamping mechanism in the present invention from a side front view; Figure 7 It is a schematic diagram of the overall structure of the clamping mechanism in the present invention from a side rear view; Figure 8 It is a schematic diagram of the turning process of the large-diameter thin-walled metal cylinder segment in the present invention; 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. circular plate; 15. support beam connecting plate; 16. hold the limit rod tightly; 17. hold the limit nut tightly. DETAILED DESCRIPTION

[0020] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, 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 sizes of some structural components or areas in the drawings may be enlarged for other structural components or areas to help understand the embodiments of the present invention.

[0021] The directional words appearing in the following description are all directions shown in the figures, 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 "installation", "connection" and "connection" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] In addition, the terms "include", "comprise", "have" or any other variations thereof are intended to cover non-exclusive inclusion, so that a structure or component including a series of elements includes not only those elements, but also other mechanical elements that are not explicitly listed or inherent in the structure or component. In the absence of more restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the article or device including the elements.

[0023] Spatially related terms such as "below", "beneath", "under", "low", "above", "on", "high", etc. are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device in addition to orientations different from those shown in the figures. In addition, for example, "one element is above / below another element" can mean that the two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, parts, etc., and do not specifically refer to the meaning of order or sequence, and should not be regarded as limiting. Similar terms are used throughout the description to represent similar elements.

[0024] In the process of describing the present invention below, in certain scene descriptions, only "rocket", "launch vehicle", "spacecraft", "space launch 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 not only space launch vehicles and rockets used to carry satellites or spacecraft or other probes, but also various types of missiles, rockets and other weapons used to carry military payloads, as well as similar products that can send payloads into the air. When interpreting the above specific words, those skilled in the art shall not limit the launch vehicle to only one of the space launch vehicles, rockets or missiles based on the specific words used to describe the scene, thereby narrowing the scope of protection of the present invention.

[0025] 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.

[0026] The present invention provides a turning device for a large-diameter thin-walled metal tube segment, comprising a turning frame 1, a rotation adjustment mechanism, a clamping mechanism, a sling mechanism and a traction rope 10, wherein: The flip frame 1 may be a polygonal structure with an angle, annular closure, central symmetry and / or axisymmetry, such as a square structure, a hexagonal structure or an octagonal structure, etc. In this embodiment, the flip frame 1 is preferably a hexagonal structure, and the large-diameter thin-walled metal cylinder segment is located in the flip frame 1 of the hexagonal structure, that is, the flip frame 1 is used to set the large-diameter thin-walled metal cylinder segment.

[0027] 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.

[0028] 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, and are used to clamp the large-diameter thin-walled metal cylinder segment.

[0029] In the present invention, the number of the clamping mechanisms is not particularly limited, and those skilled in the art can adjust it according to actual needs. Figure 1 The number of the clamping mechanisms may be six, and they are detachably mounted at the six included corners of the hexagonal structure of the flip frame 1 in sequence along the circumference of the flip frame 1 .

[0030] In this embodiment, refer to Figure 1The two rotation adjustment mechanisms are symmetrically and detachably mounted on the linear frame (i.e., the side of the hexagonal structure) of the flip frame 1 of the hexagonal structure, and are located in the middle of the linear frame. The clamping mechanisms on both sides of any rotation adjustment mechanism can be symmetrical with the rotation adjustment mechanism between them as the symmetry axis.

[0031] 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).

[0032] 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. Therefore, it is 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 cylinder section in the flip frame 1 can be flipped.

[0033] In this embodiment, refer to Figure 1 or Figure 2 The connection between the traction rope 10 and the flip frame 1 is located at the middle position of the two rotation adjustment mechanisms. In other words, the two rotation adjustment mechanisms can be symmetrically arranged 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 setting can provide the greatest labor-saving effect when the staff holds and pulls the traction rope 10 to flip the large-diameter thin-walled metal cylinder segment.

[0034] When the tooling device of the present invention is used, firstly, a worker uses a crane to lift the tooling device in a vertical direction, and stops after lifting it to a certain height.

[0035] Then, the large-diameter thin-walled metal cylinder section to be turned over is placed at the bottom of the hoisted tooling; after being placed, the tooling is lowered, and the turning frame 1 is sleeved on the outside of the large-diameter thin-walled metal cylinder section.

[0036] 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 hanger 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.

[0037] Finally, six clamping mechanisms are used to clamp the large-diameter thin-walled metal cylinder segment in the flip frame 1, so that the flip frame 1 and the large-diameter thin-walled metal cylinder segment can be firmly connected.

[0038] After holding tightly, refer to Figure 8The staff holds one end of the traction rope 10 away from the flip frame 1, stands on the side of the flip frame 1 and pulls 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.

[0039] When using the clamping mechanism to clamp the large-diameter thin-walled metal cylinder segment, the staff can first use the two opposite clamping mechanisms to clamp the large-diameter thin-walled metal cylinder segment. In other words, first use the clamping mechanisms that are symmetrical on both sides of the symmetry axis of the flip frame 1 to clamp the large-diameter thin-walled metal cylinder segment, and then use the other two clamping mechanisms that are symmetrical on both sides to clamp the large-diameter thin-walled metal cylinder segment, and so on, to complete the clamping work of the large-diameter thin-walled metal cylinder segment. In this way, the large-diameter thin-walled metal cylinder segment can be clamped at the center position inside the flip frame 1 to prevent deviation.

[0040] When turning over a large-diameter thin-walled metal cylinder, the worker will stand on the side of the turning frame 1 instead of the bottom of the turning frame 1, thereby preventing the large-diameter thin-walled 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 over the rotation adjustment mechanism. For example, referring to Figure 8 , Figure 8 It 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 instead of counterclockwise, so that the traction rope 10 will not be entangled with the sling mechanism, thereby ensuring the smooth progress of the flipping work.

[0041] According to one embodiment of the present invention, referring to Figure 3, both rotation adjustment mechanisms include a connecting plate 9 detachably mounted on the outer wall of 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. Preferably, the connection between the traction rope 10 and the flip frame 1 is located at the middle position between the two connecting plates 9, and the straight line formed by the connection between the traction rope 10 and the flip frame 1 and the center of the flip frame 1 is the symmetry axis of the two connecting plates 9. 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, and 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 arranged sequentially along the length direction of the adjustment groove. An adjusting block 11 is fitted in the adjusting groove for limiting sliding movement. A second adjusting hole is provided on the adjusting block 11. The first adjusting hole and the second adjusting hole are threadedly fitted 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, and 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.

[0042] 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 the form of a knot. 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 arrangement of the lifting ring 12, the lifting chain 3 can be installed and removed on the adjusting block 11 more conveniently.

[0043] In this embodiment, refer 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 hanging beams 4. For example, the detachable connection may be a connection by bolts, and the connection points of the two lifting chains 3 and the hanging beams 4 are symmetrically arranged at the center of the hanging beams 4.

[0044] Two ropes connected to the crane 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.

[0045] In this embodiment, refer to Figure 3 The number of the first adjustment holes is preferably nine, the number of the second adjustment holes is several, and the number of the nine first adjustment holes is greater than the number of the several second adjustment holes. Preferably, the number of the second adjustment holes is three, and the three second adjustment holes are arranged in one-to-one correspondence with any three adjacent first adjustment holes.

[0046] In the present invention, when it is necessary to adjust the height of the connection position between the lifting chain 3 and the flip frame 1 according to the actual situation, the staff can adjust the upper and lower positions of the adjustment block 11 in the adjustment slot of the connecting plate 9. After the adjustment is completed, the adjustment bolts are tightened in the first adjustment hole and the second adjustment hole, and the adjustment block 11 can be fixed on the connecting plate 9, thereby completing the height adjustment work of the connection position between the lifting chain 3 and the flip frame 1, and then ensuring that the subsequent entire flip axis can be in a coincident state with the flip center of gravity of the large-diameter thin-walled metal cylinder segment.

[0047] According to one embodiment of the present invention, referring to Figure 4 The clamping mechanism includes a support beam 2 which is detachably mounted at the angle of the flip frame 1 in the horizontal direction. 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 in the horizontal direction on the outer side of the support beam 2 (i.e., the end away from the large-diameter thin-walled metal tube section). The clamping screw 7 is vertically arranged with the support beam 2. 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 matched on 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 section). The clamping nut 6 is in contact with the clamping vertical plate 8. A clamping horizontal plate 5 is fixedly mounted in the horizontal direction on the end of the clamping vertical plate 8 away from the clamping nut 6. The clamping horizontal plate 5 is preferably vertically arranged with 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.

[0048] In this embodiment, refer to Figure 4 and Figure 6 The number of support beams 2 in each clamping mechanism is several, preferably two, and the two support beams 2 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. The number of clamping screw rods 7 is several, preferably the number of clamping screw rods 7 on each support beam 2 is two, and the two clamping screw rods 7 are arranged in sequence along the length direction of the support beam 2. The number of clamping horizontal plates 5 is several, preferably two, and they are symmetrically arranged at the upper and lower parts of the clamping vertical plates 8 along the height direction of the clamping vertical plates 8.

[0049] In the present invention, by providing two support beams 2, the overall structure of the clamping mechanism can be made more solid, and by providing two clamping screws 7 and two clamping horizontal plates 5, not only can the clamping force be increased, but also the large-diameter thin-walled metal cylinder segment can be clamped at the upper and lower parts of the clamping vertical plate 8 at the same time, thereby further improving the stability of the firmness of the clamping of the large-diameter thin-walled metal cylinder segment.

[0050] In the present invention, when it is necessary to clamp the large-diameter thin-walled metal cylinder segment, the staff can first screw one of the clamping nuts 6 in the clamping mechanism inwardly, and at this time the clamping nut 6 will push the clamping vertical plate 8 to slide on the clamping screw rod 7 in the direction of the large-diameter thin-walled metal cylinder segment, thereby making the clamping vertical plate 8 move in the direction of the large-diameter thin-walled metal cylinder segment together with 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 cross 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 static friction between the other clamping nuts 6 and the clamping vertical plate 8 can better fix the clamping vertical plate 8, thereby further increasing the firmness of the clamping of the large-diameter thin-walled metal cylinder segment.

[0051] According to one embodiment of the present invention, an anti-skid layer (not shown in the figure) is fixedly installed in the arc-shaped structure of the clamping cross plate 5. The anti-skid 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 elaborated herein. 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 preventing the large-diameter thin-walled metal cylinder segment from being damaged during the clamping process.

[0052] 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 flip frame 1. The support beam connecting plate 15 is a rectangular structure, and the support beam connecting plate 15 is fixedly connected to the support beam 2. The support beam connecting plate 15 is detachably connected to the flip frame 1 at four angles of its rectangular structure through four bolts. The support beam 2 is detachably connected to the flip frame 1 through the support beam connecting plate 15, thereby further ensuring the connection stability between the support beam 2 and the flip frame 1.

[0053] 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 vertically arranged with 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.

[0054] When the clamping cross plate 5 and the clamping vertical plate 8 are moved along the direction of the clamping screw 7, the waist-round long hole will also move relative to the outer wall of the clamping limit rod 16, thereby realizing the limiting effect, further ensuring the stability of the clamping cross plate 5 and the clamping vertical plate 8 when moving; at the same time, when the clamping cross plate 5 clamps the large-diameter thin-walled metal cylinder section, if the clamping limit rod 16 and the clamping limit nut 17 are not set, the weight of the large-diameter thin-walled metal cylinder section will be directly pressed on the clamping screw 7 through the clamping cross plate 5 and the clamping vertical plate 8, and then the clamping screw 7 may be bent. Through the setting of the clamping limit nut 17, part of the weight of the large-diameter thin-walled metal cylinder section will be pressed on the clamping limit nut 17 through the clamping cross plate 5, and then the clamping limit nut 17 can be used to bear part of the weight of the large-diameter thin-walled metal cylinder section, so that the force is more evenly distributed in the clamping mechanism, avoiding the bending of the clamping screw 7, and ensuring the smooth progress of the flipping work.

[0055] According to one embodiment of the present invention, referring to Figure 7 In this embodiment, the number of the clamping limit rods 16 is two, and they are arranged in sequence along the length direction of the support beam 2. Correspondingly, the number of the waist-shaped long holes opened on each clamping horizontal plate 5 is also two, and the two clamping limit rods 16 are respectively located in the two waist-shaped long holes and slide in cooperation with the waist-shaped long holes; by setting two clamping limit rods 16, compared with one clamping limit rod 16, the stability of the clamping horizontal plate 5 during the clamping process can be further guaranteed, and the clamping limit nuts 17 on the two clamping limit rods 16 can also be used to bear the weight of the large-diameter thin-walled metal cylinder section, further avoiding the bending of the clamping screw 7, and ensuring the smooth progress of the flipping work.

[0056] 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: 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 horizontal plates 5 with different curvatures to adapt to the 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, so that the clamping horizontal plate 5 and the clamping vertical plate 8 can be quickly removed from the support beam 2. Then, according to the diameter of the thin-walled metal cylinder section at this time, the clamping horizontal 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, so that the clamping vertical plate 8 and the clamping horizontal 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 horizontal plate 5 and the clamping vertical plate 8 on the support beam 2.

[0057] 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 connected. 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 connecting line at the center position of the circular plate 14 and the flip frame 1 is the symmetry axis of the left and right connecting plates 9, and the traction rope 10 is detachably connected to the flip frame 1 through the traction ring 13.

[0058] In this embodiment, refer to Figure 4 The circular plate 14 is fixedly mounted at the angle of the hexagonal structure of the flip frame 1, and the traction ring 13 can be detachably connected to the circular plate 14 by bolts and is located on the outer wall of the circular plate 14 away from the inside of the flip frame 1. The traction rope 10 can be connected to the traction ring 13 by a knot connection or other detachable connection methods; the arrangement of the circular plate 14 can increase the firmness of the connection between the traction rope 10 and the flip frame 1.

[0059] 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 (i.e., the two adjacent sides of the hexagonal structure) on the two adjacent flip frames 1 on the left and right more firmly connected, further improving the firmness and stability of the flip frame 1.

[0060] 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.

[0061] 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 elaborated herein.

[0062] The above-mentioned embodiments of the present invention can be combined with each other and have corresponding technical effects.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turning device for large diameter thin-walled metal cylinder segments, characterized in that: It comprises a tilting frame (1), a rotation adjustment mechanism, a clamping mechanism, a sling mechanism and a traction rope (10), wherein: The turnover frame (1) is a ring-shaped 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 arranged in sequence 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 in sequence 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 sling 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.

2. The turning device for large diameter thin-walled metal cylinder segment according to claim 1 is characterized in that: The flip frame (1) is a polygonal structure with an angle.

3. The turning device for large diameter thin wall metal cylinder section according to claim 2 is characterized in that: 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) of the polygonal structure.

4. The turning device for large diameter thin-walled metal cylinder section according to claim 1 is characterized in that: The rotation adjustment mechanism comprises a connecting plate (9) which is detachably mounted on 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); 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; an end of the adjustment block (11) away from the connecting plate (9) is rotationally connected to the bottom end of the sling mechanism in a limited manner.

5. The turning device for large diameter thin wall metal cylinder section according to claim 4 is characterized in that: The sling mechanism comprises a sling beam (4) and a sling chain (3); the bottom end of the sling chain (3) is sleeved with a sling ring (12) and is detachably connected to the sling ring (12); the bottom end of the sling ring (12) is rotatably connected to an end of the adjustment block (11) away from the connecting plate (9); the top end of the sling chain (3) is detachably connected to the sling beam (4); the sling beam (4) and the sling chain (3) are used to sling 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.

6. The turning device for large diameter thin wall metal cylinder section according to claim 4 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, and any adjacent first adjustment holes having the same number as the several second adjustment holes are arranged in one-to-one correspondence with the several second adjustment holes.

7. The turning device for large diameter thin wall metal cylinder section according to claim 3 is characterized in that: The clamping mechanism comprises a support beam (2) which is detachably mounted at an 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) is fixedly mounted on the outer side of the support beam (2) in the horizontal direction, the clamping screw (7) is arranged perpendicular to the support beam (2); a clamping vertical plate (8) is slidably mounted on the clamping screw (7), and a clamping screw threadedly cooperates with the clamping screw (7). The clamping nut (6) is located on the outside of the clamping vertical plate (8), and the clamping nut (6) is in contact with the clamping vertical plate (8); the end of the clamping vertical plate (8) away from the clamping nut (6) is fixedly mounted with a clamping horizontal plate (5) in the horizontal direction, and the 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, and the clamping horizontal plate (5) is used to clamp the large-diameter thin-walled metal cylinder segment.

8. The turning device for large diameter thin wall metal cylinder section according to claim 7 is characterized in that: The number of the support beams (2) is several, and the several support beams (2) are arranged in parallel, the number of the clamping screw rods (7) is several and 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 are arranged in sequence along the height direction of the clamping vertical plates (8).

9. The turning device for large diameter thin-walled metal cylinder section according to claim 8 is characterized in that: A clamping limit rod (16) is threadedly connected to the support beam (2), and the clamping limit rod (16) is vertically arranged to the clamping screw (7) and the support beam (2); a waist-shaped long hole is opened 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 is slidably matched with the inner wall of the waist-shaped long hole; a clamping limit nut (17) is threadedly matched on the clamping limit rod (16), and the clamping limit nut (17) is located outside the waist-shaped long hole and is slidably matched with the clamping horizontal plate (5).

10. The turning device for large diameter thin wall metal cylinder section according to claim 4, 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) via the traction ring (13).

Images