A turning device for large-volume concrete components

Abstract

The present application relates to a turning device for large-volume concrete components, and relates to the field of large-volume concrete component transportation, which includes a base, a turning frame rotatably mounted on the base, and a driving assembly for driving the turning frame to turn and limiting the turning range of the turning frame, and the turning frame includes a main bracket and a sub-bracket perpendicular to the bracket, and the sub-bracket is located on a side of the main bracket away from the base. The present application has the effect of facilitating the turning of large components and having a low requirement on the structural strength of the components.

Description

Technical Field

[0001] The present application relates to the field of transportation of large concrete components, and in particular to a turning device for large-volume concrete components. Background Art

[0002] Large-volume concrete is often used in water transport projects, such as dock caissons, toothed components, semicircular bodies, etc. Taking the semicircular body as an example, the installation application is that the arc surface is upward and the radius plane is the ground. However, in order to ensure the quality of the arc surface during prefabrication, it is mostly prefabricated vertically, with the arc section as the bottom surface. After prefabrication, it is turned 90 degrees to adjust the radius plane downward before transportation and installation.

[0003] Most of the semicircular bodies are reinforced concrete structures. Since the strength of the components is sufficient, a lifting hole can be set in the middle of the components for lifting and mid-air flipping. However, for semicircular bodies with low structural strength, such as the upper cap of the truncated semicircular body, which is a plain concrete structure, the component itself is small in thickness, long in length and width, and has low structural strength. It is impossible to set a lifting and mid-air flipping hole, and the whole body can only be flipped with a bracket.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there is a problem that large concrete components with low structural strength are difficult to flip. Summary of the invention

[0005] In order to facilitate the turning over of large concrete components, the present application provides a turning over device for large concrete components, which has the effect of reducing the requirement on component strength.

[0006] The present application provides a turning device for a large-volume concrete member using the following technical solution:

[0007] A turning device for a large-volume concrete member comprises a base, a turning frame rotatably mounted on the base, and a driving assembly for driving the turning frame to turn and limiting the turning range of the turning frame. The turning frame comprises a main bracket and a sub-bracket perpendicular to the bracket, and the sub-bracket is located on a side of the main bracket away from the base.

[0008] By adopting the above technical solution, a main bracket and a sub-bracket are provided on the turning frame. The sub-bracket carries the concrete component in a vertical state, and the main bracket provides support at this time to ensure the stability of the component. The driving component drives the turning frame to rotate, so that the main bracket is laid flat, and the main bracket carries the component instead. The cooperation between the sub-bracket and the main bracket can prevent the component from moving during the turning process, and the turning process is smooth and reliable. Moreover, since the component is supported by the main bracket or the sub-bracket, the component itself is not easily subjected to local stress, and the strength requirement for the component is reduced.

[0009] Optionally, the base is connected to the flip frame via an ear plate hinge, a support column is fixedly provided on a side of the base close to the flip frame, and a plurality of mutually parallel support ear plates are fixedly provided on an end of the support column away from the base;

[0010] A plurality of rotating ear plates parallel to each other are arranged on one side of the main bracket close to the supporting column;

[0011] The plurality of rotating ear plates and the plurality of supporting ear plates are interlaced and inserted and connected through the same rotating shaft to form a fulcrum hinge.

[0012] By adopting the above technical solution, multiple supporting ear plates and rotating ear plates are staggered to disperse the shear force on the rotating shaft to multiple rotating shaft sections, which can effectively improve the bearing capacity of the rotating shaft, thereby increasing the load-bearing capacity of the entire flipping mechanism and being able to flip large mass components.

[0013] Optionally, the drive assembly includes a hydraulic cylinder and a hydraulic pump station, the cylinder body of the hydraulic cylinder is hinged on the base, the piston rod end of the hydraulic cylinder is hinged on the main bracket, and the hinge point of the piston rod end of the hydraulic cylinder is located between the cylinder body and the fulcrum hinge of the hydraulic cylinder.

[0014] By adopting the above technical solution, the piston rod of the hydraulic cylinder is extended and retracted, which will drive one end of the flip frame to rise or fall, thereby realizing the flipping action of the flip frame; with a practical hydraulic cylinder, the hydraulic system can provide a sufficiently large flipping force, and the hydraulic system has high movement stability and easy speed control, and the flipping process is more stable, reliable and controllable.

[0015] Optionally, a balancing support frame is provided on one side of the flip frame close to the hydraulic cylinder, and the frame body of the balancing support frame is perpendicular to the frame body of the main bracket of the flip frame and is located on one side of the main bracket close to the hydraulic cylinder;

[0016] A buffer platform is arranged on the base corresponding to the balance support frame, and a plurality of horizontal buffer members are arranged on one end of the buffer platform close to the balance support frame; a horizontal limit switch electrically connected to the hydraulic pump station is arranged on the buffer platform.

[0017] By adopting the above technical solution, the flip frame in a horizontal state can be stably and reliably supported. At the same time, when the flip frame moves to a horizontal position, the horizontal buffer can effectively absorb the impact and prevent the flip frame from vibrating violently as a whole. The flipping process is smooth and easy to control. The horizontal limit switch can prevent the flip frame from moving excessively and causing the flip frame to collide with the base, thereby preventing and reducing self-damage during the use of the flip machine.

[0018] Optionally, a plurality of vertical buffer members are provided on one end of the main bracket away from the hydraulic cylinder and on a side of the main bracket far from the support column;

[0019] A vertical limit switch electrically connected to the hydraulic pump station is arranged between the support columns.

[0020] By adopting the above technical solution, when the main bracket of the turnover frame enters the vertical state, the vertical buffer mitigates the impact and reduces damage, and the vertical limit switch feedback signal stops the hydraulic cylinder from moving to prevent the turnover frame from excessive movement.

[0021] Optionally, the horizontal limit switch and the vertical limit switch both include an electromagnetic proximity switch and a mechanical travel switch;

[0022] The buffer support is provided in plurality, and the horizontal electromagnetic proximity switch and the horizontal mechanical travel switch in the horizontal limit switch are respectively located on different buffer support;

[0023] The vertical electromagnetic proximity switch and the vertical mechanical travel switch in the vertical limit switch are respectively located on two sides of the base.

[0024] By adopting the above technical solution, two position switches, an electromagnetic proximity switch and a mechanical travel switch, are provided, which play a double insurance role and can effectively prevent the failure of a single position switch, thereby effectively improving the safety performance of the tipping machine; the electromagnetic proximity switch and the limit switch are respectively set at different positions, which can prevent the two switches from being damaged at the same time due to external force factors, thereby further improving the safety performance of the tipping machine.

[0025] Optionally, a positioning ear plate is provided at one end of the balancing support frame close to the buffer support platform, a positioning ring is provided on the positioning ear plate on the base corresponding to the main support plate in a horizontal state, a positioning pin is inserted between the positioning ear and the positioning ring, and the axis of the positioning pin is horizontal;

[0026] A lifting ring is arranged above the main bracket.

[0027] By adopting the above technical solution, the horizontal position of the turning frame is positioned. After the positioning pin is inserted into the positioning ear and the positioning ring, the turning frame is difficult to shake up and down, and the turning frame and the base of the turning machine main structure are not easy to move. At this time, the entire turning machine can be conveniently lifted using the lifting ring.

[0028] Optionally, the base is a rectangular frame, and a plurality of base cross beams are arranged in the base, and the base cross beams are arranged along the length direction of the rotation axis of the flip frame;

[0029] The buffer support is fixed on the same base crossbeam, and the positioning ring is fixed on the base crossbeam;

[0030] The support columns are located at both ends of the same base beam, and transverse reinforcement columns are arranged between the support column and the base beam and between the support column and the frame of the base. One end of the reinforcement column is fixed to the end of the support column away from the base, and the other end of the reinforcement column is fixed to the base beam or the frame of the base.

[0031] By adopting the above technical solution, the strength of the base and its ability to resist deformation are enhanced, the structural strength of the entire turning machine is further enhanced, and the outline of the base is not easily deformed due to load, thereby ensuring that the turning machine can perform turning work stably for a long time.

[0032] Optionally, the driving assembly further comprises a booster hydraulic cylinder arranged on the base cross beam, and the auxiliary bracket is provided with an abutment block which abuts and cooperates with the piston rod of the booster hydraulic cylinder.

[0033] By adopting the above technical solution, the booster hydraulic cylinder can push away the bottom of the flip frame, making it easier for the flip frame to be converted from a vertical state to a horizontal state, thereby reducing the load on the hydraulic cylinder.

[0034] Optionally, a buffer layer is provided on both the main bracket and the auxiliary bracket.

[0035] By adopting the above technical solution, the concrete components are protected, rigid contact is avoided, the impact when placing the concrete components on the turning frame is absorbed and the vibration is reduced. Reducing the impact and reducing the vibration can effectively protect the concrete components and the turning machine.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] The overturning frame composed of the main bracket and the auxiliary bracket can provide good support for the component, thereby reducing the load on the concrete component itself during the overturning process. The lifting method has a larger contact area between the overturning frame and the concrete component, and the overturning process is not likely to generate a large local load on the component.

[0038] The staggered insertion of multiple support ear plates and rotating ear plates can effectively disperse the shear force exerted by the ear plates on the rotating shaft, thereby increasing the upper limit of the weight of the flip member of the flip frame, and the flip frame can bear the flipping work of large-mass concrete members;

[0039] The combined use of electromagnetic induction switches and mechanical travel switches can effectively prevent safety problems caused by the failure of a single position switch. At the same time, the electromagnetic induction switch and mechanical travel switch that perform the same position limit function are installed in different positions, which to a certain extent avoids damage to the two switches at the same time, further ensures the reliability of the limit function, and improves the safety of the flip frame during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application;

[0041] Figure 2 It is a schematic diagram of the structure after the state of the flip frame in the first embodiment of the present application is changed;

[0042] Figure 3 It is a schematic structural diagram of the base portion in Example 1 of the present application;

[0043] Figure 4 It is a structural schematic diagram of the turning frame part in the first embodiment of the present application;

[0044] Figure 5 yes Figure 1 Magnified view of area A in the middle;

[0045] Figure 6 yes Figure 1 Magnified view of area B;

[0046] Figure 7 yes Figure 2 Magnified view of area C in the middle;

[0047] Figure 8 It is a structural schematic diagram of the protection shed in Example 1 of the present application;

[0048] Fig. 9 It is a structural diagram of Embodiment 2 of the present application;

[0049] Fig.10 yes Fig. 9 Magnified view of area D in center.

[0050] Figure numerals: 1, base; 11, support column; 12, support ear plate; 13, base cross beam; 14, buffer base; 15, positioning ring; 16, reinforcement cross beam; 18, mounting plate; 19, reinforcement column; 2, flip frame; 21, main bracket; 211, rotating ear plate; 212, balance support frame; 213, positioning ear plate; 214, vertical buffer; 215, piston rod hinge joint structure; 22, auxiliary bracket; 221, abutment block; 23, bracket cross beam; 2 4. Trigger plate; 25. Lifting ring; 31. Hydraulic cylinder; 32. Hydraulic pump station; 33. Power-boosting hydraulic cylinder; 331. Extension plate; 332. Stool body; 333. Butt joint; 334. Clamping plate; 335. Reinforcement plate; 4. Control cabinet; 51. Rotating shaft; 61. Fulcrum hinge; 71. Horizontal electromagnetic proximity switch; 72. Horizontal mechanical travel switch; 81. Vertical electromagnetic proximity switch; 82. Vertical mechanical travel switch; 9. Protective shed; 91. Hinge door. DETAILED DESCRIPTION

[0051] Embodiment 1:

[0052] This embodiment discloses a turning device for a large-volume concrete component. Figure 1 The invention comprises a base 1, a turning frame 2 rotatably mounted on the base 1, and a driving assembly for driving the turning frame 2 to rotate. A control assembly for controlling the driving assembly is arranged on the base 1. Both the base 1 and the turning frame 2 are frames formed by welding Q235 steel and steel plates.

[0053] refer to Figure 1 and Figure 2 The turning frame 2 is rotatably mounted on the base 1 through the combined structure of the ear plate and the rotating shaft 51. The ear plate structure and the shaft part form a fulcrum hinge 61. The driving assembly includes a hydraulic cylinder 31 rotatably mounted on the base 1 and a power source hydraulic pump station 32. The piston rod end of the hydraulic cylinder 31 is rotatably connected to the frame body of the turning frame 2. The hydraulic cylinder 31 is telescopically driven to drive one end of the turning frame 2 to rise or fall, thereby controlling the entire turning frame 2 to turn over. The control assembly includes a control cabinet 4 fixed on the base 1, which is used to control the action of the hydraulic cylinder 31. The concrete component is placed on the turning frame 2, and the turning of the turning frame 2 drives the component to turn over.

[0054] refer to Figure 3 The base 1 is a horizontally placed rectangular frame, and a base crossbeam 13 for strengthening the strength of the base 1 and a mounting plate 18 as a mounting platform are arranged inside the base 1. Both ends of the base crossbeam 13 and the mounting plate 18 are welded and fixed to the base 1, and the length direction of the base crossbeam 13 and the mounting plate 18 is the same. Support columns 11 are arranged at both ends of the base crossbeam 13, and a plurality of buffer platforms 14 are welded and fixed on the mounting plate 18. A buffer column made of rubber material is fixedly connected to the end surface of the buffer platform 14 away from the mounting plate 18. The support column 11 is welded and fixed on the base crossbeam 13, the axis of the support column 11 is perpendicular to the base 1, and a plurality of support ear plates 12 parallel to each other and spaced apart are welded and fixed at one end of the support column 11 away from the base 1, and the through holes on the plurality of support ear plates 12 are coaxial; a reinforcing column 19 is arranged between the support column 11 and the frame of the base 1, and between the support column 11 and the adjacent crossbeam, and each reinforcing column 19 is arranged obliquely, one end of the reinforcing column 19 is welded and fixed on the support column 11, and the other end of the reinforcing column 19 is welded and fixed on the frame of the base 1 or the adjacent crossbeam, and the reinforcing column 19 can share the horizontal load on the support column 11 and transfer the horizontal load on the support column 11 to the base 1 or the beam, thereby enhancing the strength of the support column 11 and effectively preventing the support column 11 from deforming; a reinforcing beam 16 is arranged between the two support columns 11, and the end of the reinforcing beam 16 is welded and fixed to the support column 11, and the reinforcing beam 16 is parallel to the base 1 and located at one end of the support column 11 close to the supporting ear plate 12; three buffer platforms 14 are arranged on the mounting plate 18, and the three buffer platforms 14 are distributed in a linear array in the length direction of the mounting plate 18.

[0055] refer to Figure 3 , limit switches for limiting the vertical and horizontal positions of the flip frame 2 are arranged between the two support columns 11 and on the buffer support 14. It includes a vertical electromagnetic proximity switch 81 and a vertical mechanical travel switch 82 fixedly connected between the two support columns 11, and the vertical electromagnetic proximity switch 81 and the vertical mechanical travel switch 82 are fixed on the side walls of different support columns 11 and are close to the base cross beam 13; it also includes a horizontal electromagnetic proximity switch 71 and a horizontal mechanical travel switch 72 installed on different buffer support 14, and the horizontal electromagnetic proximity switch 71 and the horizontal mechanical travel switch 72 are respectively fixedly connected to the buffer support 14 at both ends of the cross beam.

[0056] refer to Figure 4 The flip frame 2 includes a main bracket 21 and a sub-bracket 22. The sub-bracket 22 is vertically arranged at one end of the main bracket 21 and welded to the main bracket 21; the main bracket 21 includes two parallel support rods, and the lower side of the support rods corresponds to the support plate on the base 1 and is welded and fixed with a plurality of rotating ear plates 211 that are parallel to each other and arranged at intervals; a balancing support frame 212 is welded and fixed to the lower side of the two brackets. When the main bracket 21 is placed flat, the balancing support frame 212 abuts against the buffer support platform 14, has a supporting function, and also has the effect of a counterweight, which is conducive to the flipping of the flip frame 2. The balancing support frame 212 is located at the rotating ear plate 211 away from the sub-bracket 22. On one side, positioning ear plates 213 are welded and fixed on both sides of the balance support frame 212; a bracket crossbeam 23 is arranged between the two support rods, and the bracket crossbeam 23 is located between the balance support frame 212 and the rotating ear plate 211. A lifting ear is welded and fixed in the middle position of the bracket crossbeam 23, and a lifting ring 25 is connected to the lifting ear; the lower sides of the two support rods are welded and fixed with a piston rod hinge joint structure 215 connected to the piston rod hinge of the hydraulic cylinder 31, and the two piston rod hinge joint structures 215 are symmetrically arranged at both ends of the bracket crossbeam 23, which can improve the synchronization degree of the support rod movement on both sides of the flip frame 2, thereby making the flipping process of the flip machine more stable. The main bracket 21 and the auxiliary bracket 22 are both covered with a rubber buffer layer, and the buffer layer is fixed to the frame body by screws.

[0057] refer to Figure 5 , multiple support ear plates 12 and multiple rotating ear plates 211 are interlaced and inserted together, the through holes in the center are coaxial, and connected through the rotating shaft 51. The interlaced support ear plates 12 and rotating ear plates 211 can effectively disperse the shear force to each cross section of the rotating shaft 51, thereby improving the bearing performance of the rotating shaft 51, and making the load-bearing capacity of the turning frame 2 stronger. A shaft sleeve is arranged between adjacent support ear plates 12 and rotating ear plates 211 to prevent interference between the ear plates.

[0058] refer to Figure 6A positioning ring 15 matching with the positioning ear plate 213 is provided on one side of the buffer support 14. A pair of positioning rings 15 is provided corresponding to each positioning ear plate 213. The pair of positioning rings 15 are connected and fixed by U-shaped steel, and the U-shaped steel is welded and fixed on the side wall of the buffer support 14. The pair of positioning rings 15 are respectively located on both sides of the positioning ear plate 213, and the positioning ear plate 213 is inserted between the pair of positioning rings 15. The plug-in pin can reach the height position of the fixed support frame to prevent the flip frame 2 from swinging up and down during transportation.

[0059] refer to Figure 7 On one side of the auxiliary bracket 22 that abuts against the base 1, a plurality of vertical buffer members 214 made of rubber material are glued and fixed, and the vertical buffer members 214 are rectangular buffer blocks; a trigger plate 24 is provided between the main bracket 21 and the auxiliary bracket 22 corresponding to the vertical electromagnetic induction switch and the vertical mechanical travel switch 82, and the trigger plate 24 is welded and fixed on the main bracket 21 to smoothly trigger the vertical electromagnetic induction switch and the vertical mechanical travel switch 82.

[0060] refer to Figure 8 The outer cover of the hydraulic pump station 32 and the control cabinet 4 is provided with a protective shed 9, which includes a shed roof and a shed structure composed of a plurality of supporting columns. The shed structure is surrounded by side walls for isolation and protection. The bottom of the side wall is suspended above the base 1 to form a ventilation structure, which is convenient for heat dissipation of the hydraulic pump station 32; Figure 1 The two side walls of the protection shed 9 are movably arranged close to and away from the turning frame 2, and the top of the side wall is hingedly connected to the shed structure to form a liftable hinged door 91.

[0061] The implementation principle of the first embodiment is as follows: the turning frame 2 composed of a main bracket 21 and a sub-bracket 22 which are perpendicular to each other can provide good support for the component, thereby reducing the load on the concrete component's own structure during the turning process. The lifting method can increase the contact area between the turning frame 2 and the concrete component, and the turning process is not likely to generate a large local load on the component; the staggered plug-in method of multiple supporting ear plates 12 and rotating ear plates 211 can effectively disperse the shear force applied by the ear plates on the rotating shaft 51, thereby increasing the upper limit of the weight of the turning frame 2 that can turn over the component, and the turning frame 2 can bear the turning work of large-mass concrete components; the combination of the electromagnetic induction switch and the mechanical travel switch can effectively prevent safety problems caused by the failure of a single position switch. At the same time, the electromagnetic induction switch and the mechanical travel switch that have the same position limit function are installed at different positions, which to a certain extent avoids damage to the two switches at the same time, further ensures the reliability of the limit function, and improves the safety of the turning frame 2 during use.

[0062] Embodiment 2:

[0063] refer to Fig. 9 and Fig.10The difference between this embodiment and the first embodiment is that a booster hydraulic cylinder 33 is additionally provided in the middle of the base cross beam 13. An extension plate 331 is welded and fixed on the base cross beam 13 for installing the booster hydraulic cylinder 33. The piston rod head of the booster hydraulic cylinder 33 is located on the side close to the auxiliary bracket 22. The end of the cylinder body of the booster hydraulic cylinder 33 away from the auxiliary bracket 22 is hingedly connected to the extension plate 331. A buffer pad is provided below the booster hydraulic cylinder 33. The buffer pad is located at the end of the cylinder body of the booster hydraulic cylinder 33 close to the auxiliary bracket 22. The buffer pad is clamped and fixed by clamping plates 334 provided on both sides thereof. The clamping plate 334 is welded and fixed on the base beam 13 or the extension plate 331, and the distance between the two clamping plates 334 is greater than the diameter of the cylinder body of the booster hydraulic cylinder 33; an abutment block 221 is provided on the sub-bracket 22 corresponding to the piston rod head of the booster hydraulic cylinder 33, and the abutment block 221 is welded and fixed on the sub-bracket 22; an elastic abutment joint 333 with a high friction coefficient is inserted and fixed at the end of the booster hydraulic cylinder 33, and a rubber abutment joint 333 is selected in this embodiment.

[0064] A stool body 332 is welded and fixed to the upper side of the extension plate body 331. Deng Li covers the hinge position of the booster hydraulic cylinder 33 inside. On the one hand, it can play the role of a climbing stool and facilitate workers to operate the lifting ring 25. On the other hand, it protects the hinge connection structure of the booster hydraulic cylinder 33 to prevent rust.

[0065] A plurality of right-angled triangle-shaped plates are disposed below the extension plate 331 , and the plates are welded and fixed between the extension plate 331 and the base cross beam 13 to form a reinforcing rib plate 335 .

[0066] The implementation principle of the second embodiment is as follows: a booster hydraulic cylinder 33 is provided, and when the vertical flip frame 2 flips, the booster hydraulic cylinder 33 applies a thrust to the bottom of the flip frame 2, thereby reducing the load of the two groups of hydraulic cylinders 31; the cylinder body of the booster hydraulic cylinder 33 is hingedly fixed, so that the booster hydraulic cylinder 33 can change its position as the flip frame 2 flips, thereby continuously and effectively providing thrust; the abutment joint 333 of the piston head of the booster hydraulic cylinder 33 is selected with a high friction coefficient and elastic abutment joint 333, which can effectively prevent slipping and ensure that the booster hydraulic cylinder 33 can function stably.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A turning device for a large-volume concrete member, characterized in that: The invention comprises a base (1), a turning frame (2) rotatably mounted on the base (1), a driving assembly for driving the turning frame (2) to turn over, and a horizontal limit switch and a vertical limit switch for limiting the turning range of the turning frame (2), wherein the turning frame (2) comprises a main bracket (21) and a secondary bracket (22) perpendicular to the bracket, and the secondary bracket (22) is located on a side of the main bracket (21) away from the base (1); The base (1) and the flip frame (2) are connected via an ear plate hinge; a support column (11) is fixedly provided on a side of the base (1) close to the flip frame (2); and a plurality of mutually parallel support ear plates (12) are fixedly provided on an end of the support column (11) away from the base (1); A plurality of mutually parallel rotating ear plates (211) are provided on one side of the main bracket (21) close to the support column (11); The plurality of rotating ear plates (211) and the plurality of supporting ear plates (12) are interlaced and connected via the same rotating shaft (51) to form a fulcrum hinge (61); The drive assembly comprises a hydraulic cylinder (31) and a hydraulic pump station (32); the cylinder body of the hydraulic cylinder (31) is hingedly connected to the base (1); the end of the piston rod of the hydraulic cylinder (31) is hingedly connected to the main bracket (21); and the hinge point of the end of the piston rod of the hydraulic cylinder (31) is located between the cylinder body of the hydraulic cylinder (31) and the fulcrum hinge (61); A balancing support frame (212) is provided on a side of the turnover frame (2) close to the hydraulic cylinder (31); the frame body of the balancing support frame (212) is perpendicular to the frame body of the main bracket (21) of the turnover frame (2) and is located on a side of the main bracket (21) close to the hydraulic cylinder (31); A buffer support platform (14) is provided on the base (1) corresponding to the balancing support frame (212); a plurality of horizontal buffer members are provided at one end of the buffer support platform (14) close to the balancing support frame (212); a horizontal limit switch electrically connected to the hydraulic pump station (32) is provided on the buffer support platform (14); The base (1) is a rectangular frame, and a base crossbeam (13) is arranged inside the base (1), and the base crossbeam (13) is arranged along the length direction of the rotation axis of the turning frame (2); The support column (11) is located at both ends of the same base crossbeam (13); a transverse reinforcement column (19) is provided between the support column (11) and the base crossbeam (13), and between the support column (11) and the frame of the base (1); one end of the reinforcement column (19) is fixed to an end of the support column (11) away from the base (1), and the other end of the reinforcement column (19) is fixed to the base crossbeam (13) or the frame of the base (1); The drive assembly further comprises a booster hydraulic cylinder (33) arranged on the base crossbeam (13), and the auxiliary bracket (22) is provided with an abutment block (221) abutting against a piston rod of the booster hydraulic cylinder (33).

2. The turning device for a large-volume concrete member according to claim 1, characterized in that: A plurality of vertical buffer members (214) are provided at one end of the main bracket (21) away from the hydraulic cylinder (31) and on a side of the main bracket (21) close to the support column (11); A vertical limit switch electrically connected to the hydraulic pump station (32) is provided between the support columns (11).

3. The turning device for a large-volume concrete member according to claim 2, characterized in that: The horizontal limit switch and the vertical limit switch both include two types: an electromagnetic proximity switch and a mechanical travel switch; The buffer support platforms (14) are provided in plurality, and the horizontal electromagnetic proximity switch (71) and the horizontal mechanical travel switch (72) in the horizontal limit switch are respectively located on different buffer support platforms (14); The vertical electromagnetic proximity switch (81) and the vertical mechanical travel switch (82) in the vertical limit switch are respectively located on two sides of the base (1).

4. The turning device for a large-volume concrete member according to claim 2, characterized in that: A positioning ear plate (213) is provided at one end of the balancing support frame (212) close to the buffer support platform (14); a positioning ring (15) is provided on the base corresponding to the positioning ear plate (213) on the main bracket in a horizontal state; a positioning pin is inserted between the positioning ear plate and the positioning ring (15); and the axis of the positioning pin is horizontal.

5. The turning device for a large-volume concrete member according to claim 1, characterized in that: A buffer layer is provided on both the main bracket (21) and the auxiliary bracket (22).

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