Large structural part turnover device and using method thereof
By designing an interlaced rotating seat and a hydraulically driven hook-shaped flipping component, autonomous load-bearing and center of gravity transfer of large structural components are achieved, solving the safety hazards of traditional flipping methods and improving the safety and stability of the flipping process.
Patent Information
- Application Number
- CN202511358899.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2025-12-26
AI Technical Summary
Traditional methods of flipping structural components pose safety hazards, especially when flipping large structural components, as relying on manual adjustment of the center of gravity carries uncontrollable risks.
A large structural component flipping device was designed, which uses staggered rotating seats and hydraulically driven hook-shaped flipping components to achieve autonomous load-bearing and center of gravity transfer of the structural component through mechanical structure, avoiding manual intervention.
The safety of the flipping process is improved. By using the step-by-step rotation of the mechanical structure and the switching of the support surface, the stable flipping of heavy structural components is ensured, reducing safety hazards caused by human error.
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Figure CN121199934A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of coal mine equipment, and particularly relates to a large structural part turnover device and a use method thereof. BACKGROUND
[0002] In the hydraulic support maintenance operation of the coal mine equipment, the turnover of the structural part is a very important process and belongs to a high-risk operation. The traditional operation mode has great safety hazards. The traditional turnover structural part operation mode is as follows: a crane hoist is used to cooperate with a specially-made sling and a connecting steel rod to hoist the structural part, and a crane hoist driver adjusts the position of the car to offset the center of gravity of the structural part to realize the turnover. The weight of the heaviest structural part of the hydraulic support being repaired currently reaches 30 tons, and great safety hazards exist in the turnover. Therefore, in order to avoid the shortcomings in the prior art, it is necessary to improve the prior art. SUMMARY
[0003] The present application aims to provide a large structural part turnover device which can turn over the large structural part, the turnover process does not need to hoist the structural part with a crane sling and then adjust the position of the car to offset the center of gravity of the structural part, the safety of the turnover process is high, and the present application further provides a use method of the large structural part turnover device.
[0004] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:
[0005] A large structural part turnover device, comprising a rack, a first turnover part and a second turnover part, both ends of the rack are respectively provided with a first support body and a second support body, a first rotating seat is arranged on one side of the middle part of the rack close to the first support body, a second rotating seat is arranged on one side of the middle part of the rack close to the second support body, the first turnover part forms a short arm and a long arm which are perpendicular to each other, the intersection of the short arm and the long arm of the first turnover part is rotatably connected to the first rotating seat, the long arm of the first turnover part can be lapped on the first support body, the second turnover part forms a short arm and a long arm which are perpendicular to each other, the intersection of the short arm and the long arm of the second turnover part is rotatably connected to the second rotating seat, the long arm of the second turnover part can be lapped on the second support body, wherein the first rotating seat and the second rotating seat are staggered, the distance between the first rotating seat and the second rotating seat is greater than or equal to the length of the short arm of the first turnover part and the second turnover part, and the rotatable angle of the first turnover part and the second turnover part relative to the horizontal plane of the rack is greater than 90 degrees.
[0006] As a preferred scheme of the above large structural part turnover device, a middle support body is arranged between the first rotating seat and the second rotating seat, and the top surface of the middle support body is inclined.
[0007] As the preferred solution of the above large structural part turnover device, the first turnover part has a plurality of first turnover parts, and the plurality of first turnover parts are connected to form a first turnover body; the second turnover part has a plurality of second turnover parts, and the plurality of second turnover parts are connected to form a second turnover body.
[0008] As the preferred solution of the above large structural part turnover device, the first hydraulic cylinder and the second hydraulic cylinder are arranged on the frame, the extension end of the first hydraulic cylinder is rotatably connected with the long arm of the first turnover part, the fixed end of the first hydraulic cylinder is rotatably connected with the frame, the extension end of the second hydraulic cylinder is rotatably connected with the long arm of the second turnover part, and the fixed end of the second hydraulic cylinder is rotatably connected with the frame, and the first turnover part and the second turnover part are driven to rotate by the first hydraulic cylinder and the second hydraulic cylinder respectively.
[0009] As the preferred solution of the above large structural part turnover device, the top surface of the middle support body is arranged to be inclined from the side close to the first rotating seat to the side close to the second rotating seat.
[0010] As the preferred solution of the above large structural part turnover device, the extension end stroke length of the hydraulic cylinder enables the rotatable angle of the first turnover part and the second turnover part relative to the plane of the frame to be greater than 90 degrees.
[0011] As the preferred solution of the above large structural part turnover device, the hydraulic cylinder is connected with a control system capable of being controlled remotely.
[0012] As the preferred solution of the above large structural part turnover device, the side surface of the first rotating seat and the second rotating seat is fixedly connected with a reinforcing rib.
[0013] As the preferred solution of the above large structural part turnover device, the rotatable angle of the first turnover part and the second turnover part relative to the plane of the frame is 91 degrees.
[0014] The application also provides a use method of the large structural part turnover device, which uses the above large structural part turnover device and includes the following steps:
[0015] Step one, rotate the first turnover part to a horizontal state and rotate the second turnover part to a vertical state;
[0016] Step two, place the structural part to be turned over on the long arm of the first turnover part in the horizontal state;
[0017] Step three, rotate the first turnover part to a vertical state, and continue to rotate until the center of gravity of the structural part to be turned over is deflected, the structural part to be turned over is inclined to the side of the second turnover part and collides with the long arm of the second turnover part;
[0018] Step four, rotate the second turnover piece to the horizontal state, and complete the turnover process of the structure to be turned over.
[0019] As a preferred method of using the large structure turnover device, a middle support body is arranged between the first rotating seat and the second rotating seat, the top surface of the middle support body is arranged obliquely from the side close to the first rotating seat to the side close to the second rotating seat, and the structure to be turned over in step three is assisted to deflect the center of gravity on the obliquely arranged top surface of the middle support body, and the structure to be turned over is inclined to the side of the second turnover piece and collides with the long arm of the second turnover piece.
[0020] Compared with the prior art, the large structure turnover device provided by the present application has the following beneficial effects:
[0021] The first turnover piece and the second turnover piece are used to turn over the large structure, the first support body and the second support body at both ends of the rack provide support, so that the large structure with a large weight has sufficient support when placed on the first turnover piece and the second turnover piece, the second turnover piece is used to receive the large structure transferred from the first turnover piece, the long arm of the first turnover piece is used to place the large structure in the horizontal state, the short arm is used to provide support for the large structure when the first turnover piece is rotated to the vertical state, the second turnover piece is first rotated to the vertical state, the first turnover piece is rotated to turn over the large structure placed on the long arm to the standing state, at this time, the short arm of the first turnover piece supports the standing large structure, and the rotation is continued to make the rotation angle greater than 90 degrees, at this time, the center of gravity of the large structure deflects to the side of the second turnover piece, the vertical second turnover piece receives the inclined large structure, and finally the second turnover piece is rotated to the horizontal state, and the large structure completes the turnover, the turnover process is safe because the crane operator does not need to adjust the position of the large and small vehicles to make the center of gravity of the structure deflect to realize deflection, but only needs to complete the turnover process by rotating the first turnover piece and the second turnover piece and transferring the structure, and the turnover process is safe. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.
[0023] Figure 1 is a schematic view of the large structure turnover device of the present application;
[0024] Figure 2 is a schematic view of the second turnover piece of the large structure turnover device of the present application being rotated to the vertical state;
[0025] Figure 3 is a front view of the large structure turnover device of the present application;
[0026] Figure 4 is a first overturning process of the large structural member overturning device of the present application;
[0027] Figure 5 is a second overturning process of the large structural member overturning device of the present application;
[0028] Figure 6 is a third overturning process of the large structural member overturning device of the present application.
[0029] Markings in the figure:
[0030] 100, frame; 110, first support body; 120, second support body; 130, first rotating seat; 140, second rotating seat; 150, middle support body; 160, reinforcing rib; 200, first overturning member; 210, first overturning body; 300, second overturning member; 310, second overturning body; 400, first hydraulic cylinder; 410, second hydraulic cylinder; 500, structural member. DETAILED DESCRIPTION
[0031] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0032] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application. The indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.
[0033] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two. Greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.
[0034] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.
[0035] Please refer to Figures 1 to 6The large structural component flipping device provided in the embodiments of the present invention will now be described.
[0036] like Figures 1 to 6 As shown, the large structural component 500 flipping device of the present invention includes a frame 100, a first flipping component 200, and a second flipping component 300. A first support body 110 and a second support body 120 are respectively provided at both ends of the frame 100. A first rotating seat 130 is provided in the middle of the frame 100 near the first support body 110, and a second rotating seat 140 is provided in the middle of the frame 100 near the second support body 120. The first flipping component 200 forms a short arm and a long arm that are perpendicular to each other. The junction of the short arm and the long arm of the first flipping component 200 is rotatably connected to the first rotating seat 130. The long arm of the first flipping component 200 can overlap the first rotating seat 300. The first support body 110 is described above. The second flipping member 300 forms a short arm and a long arm that are perpendicular to each other. The junction of the short arm and the long arm of the second flipping member 300 is rotatably connected to the second rotating seat 140. The long arm of the second flipping member 300 can overlap the second support body 120. The first rotating seat 130 and the second rotating seat 140 are staggered. The distance between the first rotating seat 130 and the second rotating seat 140 is greater than or equal to the length of the short arm of the first flipping member 200 and the second flipping member 300. The rotatable angle of the first flipping member 200 and the second flipping member 300 relative to the horizontal plane of the frame 100 is greater than 90 degrees.
[0037] The core flaw of traditional flipping methods lies in the uncontrollability of manual adjustment. Analysis revealed that flipping structural component 500 requires two key actions: stable support of the initial bearing surface and a shift in the center of gravity during the flipping process. If these two actions can be autonomously completed by a mechanical structure, the risks associated with manual intervention can be eliminated. Based on this idea, a flipping device with autonomous bearing capacity and automatic center of gravity transfer needs to be designed. The staggered arrangement of the rotating seats refers to the asymmetrical distribution of the two rotating seats on the plane of the frame 100. This can be achieved through staggered welding or bolt fixing, and its purpose is to prevent interference between the two flipping components during rotation. A rotation angle greater than 90 degrees means that the rotation range of the flipping component covers from vertical to tilted states, ensuring that structural component 500 can complete the center of gravity transfer.
[0038] Specifically, the first support body 110 and the second support body 120 at both ends of the rack 100 provide initial horizontal support for the turnover member, and the middle rotating seat serves as a rotating support point. When the first turnover member 200 is in a horizontal state, the long arm thereof forms a bearing surface to place the structural member 500; when the first turnover member 200 is driven to rotate around the rotating seat to a vertical state, the center of gravity of the structural member 500 is offset and slides to the long arm of the second turnover member 300; and the second turnover member 300 is rotated from a vertical state to a horizontal state to complete turnover. The distance between the rotating seats is matched with the distance of the short arms of the turnover members, so that when the first turnover member 200 is rotated to a vertical position, the short arm thereof is in contact with the short arm of the second turnover member 300, forming a transition position for the transfer of the structural member 500. The turnover angle exceeding 90 degrees ensures that the structural member 500 can be completely transferred to the bearing surface of the second turnover member 300 after being separated from the first turnover member 200. The present scheme divides the turnover action into two fixed steps of mechanical driving through the mechanical cooperation of the hook-shaped turnover member and the staggered rotating seats, and the structural member 500 is always supported by a rigid part during the turnover process, without the need for manual intervention in the center of gravity offset process. Specifically, the long arm of the first turnover member 200 can be lapped on the first support body 110 when it is in a horizontal state, the long arm of the second turnover member 300 can be lapped on the second support body 120 when it is in a horizontal state, and the rotatable angle of the first turnover member 200 and the second turnover member 300 relative to the plane of the rack 100 is greater than 90 degrees, that is, the rotatable angle of the first turnover member 200 and the second turnover member 300 relative to the horizontal plane is greater than 90 degrees.
[0039] Specifically, the first rotating seat 130 and the second rotating seat 140 are provided with a middle support body 150, and the top surface of the middle support body 150 is inclined. The middle support body 150 refers to a bearing member between the two rotating seats, which can be realized by forming a trapezoidal frame structure with a welded steel plate, the height of which is matched with the installation position of the rotating seat, and can support the dynamic load in the turnover process. The top surface is inclined, that is, the upper surface of the support body is in a non-horizontal state, which can be realized by cutting a steel plate to form a 5° to 15° inclined surface, the extension direction of which is consistent with the turnover path of the structural member 500.
[0040] When the first turnover part 200 drives the structure part 500 to rotate, the inclined top surface is in contact and friction with the bottom surface of the structure part 500, at this time, the middle support body 150 bears part of the weight of the structure part 500, reducing the torque load borne by the rotating seat. When the gravity center of the structure part 500 passes the critical point, the guiding effect of the inclined top surface promotes the structure part 500 to slide along the predetermined direction, avoiding lateral deviation. The scheme adds the middle support body 150 with the inclined top surface, enhances the torsional resistance of the device under the premise of maintaining the rotating degree of freedom, and at the same time, guides the structure part 500 to overturn along the predetermined track through the slope design. The scheme reduces the elastic deformation of the overturning device when bearing the 30-ton structure part 500, prevents the cracking of the supporting structure caused by local stress concentration, and at the same time, reduces the operation frequency of manual intervention and adjustment of the gravity center through the slope guiding mechanism, significantly improves the safety of the heavy structure part 500 overturning operation.
[0041] Exemplarily, the first turnover pieces 200 are several, and the several first turnover pieces 200 are connected with each other to form a first turnover body 210. The second turnover pieces 300 are several, and the several second turnover pieces 300 are connected with each other to form a second turnover body 310. Wherein, the first turnover pieces 200 being several means that multiple independent hook-shaped components are arranged in the axial direction, so that the long arms of the multiple turnover pieces form a continuous support surface. The second turnover pieces 300 being several means that another group of hook-shaped components are connected in the same way to form a load-bearing structure arranged symmetrically with the first turnover body 210. The first turnover body 210 being formed by the mutual connection means that multiple independent turnover pieces are integrated into a monolithic frame, which can be realized by transverse connecting rods or rigid plates, so that the turnover body produces cooperative deformation when bearing load. Specifically, after the multiple first turnover pieces 200 are connected by rigid connection to form a monolithic turnover body, the long arms thereof form a continuous support area that can cover different contact positions of the structural member 500. When the structural member 500 is placed on the turnover body, the load is dispersed to the intersection of the short arms and the long arms of each turnover piece and the rotating seat, avoiding single-point stress concentration. During the turnover process, the mutually connected turnover pieces rotate synchronously through the rotating seat, maintaining the planeness of the support surface, so that the turnover torque is uniformly transmitted to the rack 100. The second turnover body 310 is cooperated with the first turnover body 210 in the same structure, and the two groups of turnover bodies form a continuous support transition when alternating, preventing the structural member 500 from deviating due to local instability. The monolithic turnover body formed by the multiple turnover pieces not only expands the support area, but also realizes uniform distribution of load through the rigid connection structure. The independent action of the turnover pieces in the prior art easily leads to uneven stress, while the cooperative movement of the turnover body in the present scheme can maintain the stability of the turnover trajectory of the structural member 500. The present scheme solves the risk of deformation caused by insufficient bearing capacity of a single turnover piece and eliminates the structural instability caused by local stress during the turnover process. The continuous support surface formed by the multiple turnover pieces can adapt to the gravity distribution of workpieces of different sizes, reducing the safety hazards caused by mismatched support. The overall rigid structure of the turnover body can bear larger tonnage load, meeting the turnover requirements of heavy structural members 500.
[0042] Exemplarily, the rack 100 is provided with a first hydraulic cylinder 400 and a second hydraulic cylinder 410, the extending end of the first hydraulic cylinder 400 is rotatably connected with the long arm of the first turnover piece 200, the fixed end of the first hydraulic cylinder 400 is rotatably connected with the rack 100, the extending end of the second hydraulic cylinder 410 is rotatably connected with the long arm of the second turnover piece 300, the fixed end of the second hydraulic cylinder 410 is rotatably connected with the rack 100, and the first turnover piece 200 and the second turnover piece 300 are driven to rotate by the first hydraulic cylinder 400 and the second hydraulic cylinder 410 respectively. Wherein, the arrangement refers to that the hydraulic cylinders 400 are fixed on the rack 100 in a linear arrangement, which can be realized by adopting two rows of parallel distributed mounting structures, and the driving part of each row is independently corresponding to the long arm of a turnover piece, thereby forming a split driving layout. Specifically, the extending end of the hydraulic cylinder 400 is fixed with the long arm of the turnover piece through a mechanical connection structure, when the hydraulic system supplies oil to the driving part, the extending end moves in a straight line direction, and pushes the turnover piece to rotate around the rotating seat. Since the two rows of driving parts act on the long arms of the two turnover pieces respectively, the rotating actions of the first turnover body 210 and the second turnover body 310 can be independently controlled, and the output direction and speed of the driving force can be adjusted in real time according to the change of the gravity center of the structural part 500 during the turnover process. Through the pressure regulation function of the hydraulic system, the thrust of the driving part can be accurately controlled, so as to avoid the shaking or deviation of the structural part 500 caused by sudden change of the driving force, and further realize the stable adjustment of the turnover angle.
[0043] Exemplarily, the top surface of the middle support body 150 is arranged in an inclined manner from the side close to the first rotating seat 130 to the side close to the second rotating seat 140. Wherein, the inclination of the top surface of the middle support body 150 refers to the structure that the support surface extends at a non-horizontal angle, which can be realized by adopting a fixed slope surface formed by welding a steel plate, and the slope direction is consistent with the rotating direction of the turnover piece. The inclined structure forms a guiding action when supporting the workpiece, so that the workpiece slides along the predetermined path. Specifically, when the gravity center of the workpiece shifts during the turnover process, the inclined top surface matches the surface form with the motion trajectory, so that the frictional resistance direction of the workpiece when contacting the support body forms an angle with the sliding direction, thereby reducing the sliding resistance. During the process that the workpiece shifts from the first turnover piece 200 to the second turnover piece 300, the inclined top surface continuously provides support force synchronous with the turnover action, thereby avoiding the stagnation or deviation of the workpiece caused by the sudden change of the support surface. The setting of the inclination angle makes the pressure distribution dispersedly transmitted along the inclined surface when the support body bears dynamic load, thereby improving the structural stability.
[0044] Exemplarily, the extension stroke length of the hydraulic cylinder 400 enables the first and second turnover members 200 and 300 to rotate relative to the plane of the rack 100 by an angle greater than 90 degrees. The extension stroke length of the hydraulic cylinder 400 refers to the maximum linear displacement of the hydraulic cylinder piston rod when pushing the turnover member to rotate, which can be achieved by using a double-acting multi-stage hydraulic cylinder or a single-acting long-stroke hydraulic cylinder. Specifically, when the hydraulic cylinder 400 is started, the extension end thereof pushes the long arm of the turnover member to rotate about the rotation seat axis, and the stroke length is set such that the short arm of the turnover member forms an inclination angle greater than 90 degrees at the end position of the stroke. At this time, the gravity center of the structural member 500 carried on the long arm gradually shifts to the outside of the short arm during rotation, and when the rotation angle exceeds the 90-degree critical point, the gravitational potential energy of the structural member 500 is converted into rotational kinetic energy, driving it to automatically tilt toward the other side of the turnover member, thereby completing the gravity center shift process without manual intervention.
[0045] Exemplarily, the hydraulic cylinder 400 is connected with a control system capable of being remotely controlled. The remote control system refers to an automatic device that receives operation instructions and controls the action of the hydraulic cylinder 400 through wireless or wired communication, which can be achieved by combining an industrial PLC controller and a wireless remote control module. The PLC controller is signal-connected with the electromagnetic valve group of the hydraulic cylinder 400, and adjusts the extension and retraction action of the hydraulic cylinder by receiving the control signal sent by the remote control terminal. The connection of the hydraulic cylinder 400 refers to the formation of a signal transmission path between the control unit of the hydraulic cylinder 400 and the remote control system, which can be achieved by electrical connection through a standard industrial interface, ensuring that the action response of the hydraulic cylinder 400 is synchronized with the remote control instruction, and avoiding the out-of-control of the turnover of the structural member 500 caused by signal delay. Specifically, during the turnover of the hydraulic support structural member 500, the operator sends the turnover angle instruction to the PLC controller through the remote control terminal, the PLC analyzes the instruction and outputs the control signal to the electromagnetic valve corresponding to the hydraulic cylinder 400, driving the hydraulic cylinder to extend and retract according to the preset stroke. The long arm of the turnover member is pushed by the hydraulic cylinder 400 to rotate about the rotation seat axis, and when the gravity center of the structural member 500 shifts to the critical point, the remote control system automatically sends a reverse adjustment instruction to slow down the turnover member to a stable state. During the entire turnover process, the operator does not need to enter the swinging area of the structural member 500, but can observe the posture change of the structural member 500 in real time through the monitoring camera, and complete the precise control outside the safe distance.
[0046] Exemplarily, the first rotating seat 130 and the second rotating seat 140 are fixedly connected with the reinforcing ribs 160 on the sides. In the overturning operation of the heavy structural member 500, the connecting parts of the first rotating seat 130 and the second rotating seat 140 with the rack 100 bear periodic alternating loads, and the arrangement of the reinforcing ribs 160 makes the rotating seat form a spatial truss structure, which significantly improves the torsional stiffness. Through the load dispersion mechanism, the rotating seat can still maintain structural integrity when bearing an overturning impact of more than 30 tons of the structural member 500.
[0047] Exemplarily, the rotatable angle of the first overturning member 200 and the second overturning member 300 relative to the plane of the rack 100 is 91 degrees. The angle design makes the overturning member still have a small stroke of continuous rotation after reaching the vertical state, which provides physical conditions for the gravity center offset of the structural member 500. Specifically, when the hydraulic cylinder 400 pushes the overturning member to rotate to 91 degrees, the long arm of the overturning member drives the structural member 500 to slightly exceed the vertical plane. At this time, the structural member 500 has a slight tilting tendency due to the action of gravity, and the gravity center offset direction corresponds to the receiving position of the second overturning member 300. The angle exceeding the vertical position makes the structural member 500 be able to naturally slide to the contact surface of the second overturning member 300 when it is separated from the support of the first overturning member 200, eliminating the stagnation phenomenon caused by insufficient inertia in the critical state.
[0048] The application also provides a use method of the large-scale structural member 500 overturning device, which uses the large-scale structural member 500 overturning device described above, and includes the following steps:
[0049] Step one, rotate the first overturning member 200 to the horizontal state, and rotate the second overturning member 300 to the vertical state;
[0050] Step two, place the structural member 500 to be overturned on the long arm of the first overturning member 200 in the horizontal state;
[0051] Step three, rotate the first overturning member 200 to the vertical state, and continue to rotate until the gravity center of the structural member 500 to be overturned is deflected, and the structural member 500 to be overturned tilts to one side of the second overturning member 300 and collides with the long arm of the second overturning member 300;
[0052] Step four, rotate the second overturning member 300 to the horizontal state, and complete the overturning process of the structural member 500 to be overturned.
[0053] Specifically, the first turnover piece 200 forms a stable bearing surface in the horizontal state, so that the structural member 500 is fixed to the long arm area. When the first turnover piece 200 is rotated to the vertical state, the support surface angle changes, causing the center of gravity of the structural member 500 to shift, so that it slides in the inclined direction. The second turnover piece 300 is pre-adjusted to the vertical state, and its long arm serves as a lateral limiting surface, providing physical blocking during the sliding of the structural member 500 to prevent uncontrolled overturning. Then the second turnover piece 300 is rotated to the horizontal state, receiving the structural member 500 whose center of gravity has been transferred, forming a new stable support surface. The entire process controls the rotation timing of the turnover pieces through mechanical linkage, and the turnover is realized by the self-weight of the structural member 500, without relying on the dynamic adjustment of external lifting equipment. The method forms a fixed trajectory support surface switching through the step-by-step rotation of the turnover pieces, so that the structural member 500 automatically completes the turnover path under the action of gravity, eliminating the dependence on the experience of the operator. In the prior art, the structural member 500 only relies on the constraint of the lifting cable during turnover, which is easy to cause swinging or slipping due to unbalanced load, while the method forms multiple limiting through the staggered layout of the hook-shaped turnover pieces, so that the structural member 500 is always within the physical blocking range, improving the turnover stability.
[0054] Through the above technical solution, the application can eliminate the safety hazards caused by manual operation errors in the traditional crane turnover process, so that the turnover path of the heavy structural member 500 is pre-defined by the mechanical structure, avoiding the risk of overturning caused by unbalanced load. The angle change of the support surface is controlled step by step during the turnover process, without relying on real-time adjustment of the operator, reducing the requirement for work experience. The linkage rotation of the hook-shaped turnover pieces enables the structural member 500 to automatically complete the turnover under the action of gravity, reducing external power intervention and improving the controllability and repeatability of the turnover process.
[0055] For example, a middle support body 150 is arranged between the first rotating seat 130 and the second rotating seat 140, and the top surface of the middle support body 150 is inclined from the side close to the first rotating seat 130 to the side close to the second rotating seat 140. In step three, the structural member 500 to be turned over is assisted to shift the center of gravity on the inclined top surface of the middle support body 150, and the structural member 500 to be turned over is inclined to one side of the second turnover piece 300 and collides with the long arm of the second turnover piece 300.
[0056] The implementation of the large-scale structural member 500 turnover device provided by the application has the following advantages compared with the prior art:
[0057] The first turnover part 200 and the second turnover part 300 are used for overturning the large structure 500, the first support body 110 and the second support body 120 at both ends of the rack 100 provide support, so that the large structure 500 with heavy weight is placed on the first turnover part 200 and the second turnover part 300 and has enough support, the second turnover part 300 is used for receiving the large structure 500 transferred from the first turnover part 200, the long arm of the first turnover part 200 is used for placing the large structure 500 in the horizontal state, the short arm is used for providing support for the large structure 500 when the first turnover part 200 is rotated to the vertical state, the second turnover part 300 is first rotated to the vertical state, the first turnover part 200 is rotated so as to overturn the large structure 500 placed on the long arm to the standing state, at this time, the short arm of the first turnover part 200 supports the standing large structure 500, and the rotation is continued so that the rotation angle is greater than 90 degrees, at this time, the center of gravity of the large structure 500 is deflected so as to tilt to one side of the second turnover part 300, the vertical second turnover part 300 receives the tilted large structure 500, finally, the second turnover part 300 is rotated to the horizontal state, and the large structure 500 is overturned, the overturning process is safe because the crane driver does not need to adjust the position of the large and small vehicles to make the center of gravity of the structure 500 deviate to realize deflection, and only the rotation of the first turnover part 200 and the second turnover part 300 and the transfer of the structure 500 are needed to complete the overturning process, and the overturning process is safe.
[0058] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make some improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.
Claims
1. A large structural member turnover device, characterized by, The utility model relates to a large -scale structure piece turnover device, including: The frame is provided with first support body and second support body respectively in both ends, and the middle part of the frame is provided with first rotating seat on the side close to the first support body, and the middle part of the frame is provided with second rotating seat on the side close to the second support body; First turnover piece, the first turnover piece forms short arm and long arm perpendicular to each other, and the intersection of short arm and long arm of the first turnover piece is rotatably connected in the first rotating seat, and the long arm of the first turnover piece can be overlapped in the first support body; Second turnover piece, the second turnover piece forms short arm and long arm perpendicular to each other, and the intersection of short arm and long arm of the second turnover piece is rotatably connected in the second rotating seat, and the long arm of the second turnover piece can be overlapped in the second support body; Wherein, the first rotating seat and the second rotating seat position staggered arrangement, the distance between the first rotating seat and the second rotating seat is greater than or equal to the short arm length of the first turnover piece and second turnover piece, and the rotatable angle of the first turnover piece and the second turnover piece relative to the horizontal plane of the frame is greater than 90 degrees.
2. A large structural member roll-over apparatus according to claim 1, wherein, The middle support body is provided between the first rotating seat and the second rotating seat, and the top surface of the middle support body is inclined.
3. A large structural member roll-over apparatus according to claim 2, wherein, The first turnover piece has a plurality of first turnover pieces, and the plurality of first turnover pieces are connected to form a first turnover body.
4. A large structural member roll-over apparatus according to claim 3, wherein, The first hydraulic cylinder and the second hydraulic cylinder are arranged on the frame, the extension end of the first hydraulic cylinder is rotatably connected with the long arm of the first turnover piece, the fixed end of the first hydraulic cylinder is rotatably connected with the frame, the extension end of the second hydraulic cylinder is rotatably connected with the long arm of the second turnover piece, and the fixed end of the second hydraulic cylinder is rotatably connected with the frame, and the first turnover piece and the second turnover piece are driven to rotate by the first hydraulic cylinder and the second hydraulic cylinder respectively.
5. A large structural member roll-over apparatus according to claim 4 wherein, The top surface of the middle support body is inclined from the side close to the first rotating seat to the side close to the second rotating seat.
6. A large structural member roll-over apparatus according to claim 5, wherein, The hydraulic cylinder is connected with a control system capable of being controlled remotely.
7. A large structural member turnover device according to any one of claims 1 to 6, wherein The side surface of the first rotating seat and the second rotating seat is fixedly connected with a reinforcing rib.
8. A large structural member turnover device according to any one of claims 1 to 6, wherein The rotatable angle of the first turnover piece and the second turnover piece relative to the horizontal plane of the frame is 91 degrees.
9. A method of using a large structural member roll-over apparatus, comprising: The large -scale structure piece turnover device of any one of the above claims 1~9 is used, including the following steps: Step one, rotate the first turnover piece to the horizontal state, and rotate the second turnover piece to the vertical state; Step two, place the structure to be turned on the long arm of the first turnover piece in the horizontal state; Step three, rotate the first turnover piece to the vertical state, and continue to rotate to the center of gravity of the structure to be turned; Step four, rotate the second turnover piece to the horizontal state, and complete the turnover process of the structure to be turned.
10. The method of using a large structural member roll-over apparatus of claim 9, wherein, The first rotating seat and the second rotating seat are provided with a middle support body, a top surface of the middle support body is provided in an inclined manner from a side close to the first rotating seat to a side close to the second rotating seat, and the structural member to be turned over in step three is assisted to deflect the gravity center on the top surface of the middle support body provided in an inclined manner, and the structural member to be turned over is inclined to the side of the second turning-over member and collides with the long arm of the second turning-over member.