A protective turning device for large components and a turning method thereof

Abstract

The present invention relates to the technical field of turning devices. The present application discloses a protective turning device for large-scale components and a turning method thereof, comprising a support base and a jack, the top surface of the support base is provided with a jack, and two output ends of the jacks are fixed with a fixing plate, the top surface of the fixing plate is fixed with a supporting plate by bolts, the top surface of the supporting plate is provided with a servo motor 1, and the output rod of the servo motor 1 is fixed with a supporting box. The present invention cooperates with the support frame and the fixing clamping plate. When it is necessary to rotate the H-shaped steel, the two ends of the H-shaped steel are clamped and lifted up and then rotated. After rotating until the required surface faces the bottom surface, the H-shaped steel is steadily lowered, which solves the problem that the existing H-shaped steel is more laborious to turn over during construction and is easily damaged during the turning process, makes the H-shaped steel more labor-saving when turning over, avoids scratches or even deformation caused by impact during turning over, and also avoids depression of the bottom surface due to impact, thereby improving the safety of the H-shaped steel when turning over.

Description

Technical Field

[0001] The present invention relates to the technical field of turning devices, and in particular to a large-scale component protective turning device and a turning method thereof. Background Art

[0002] H-shaped steel is an economical and efficient profile with a more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". All parts of the H-shaped steel are arranged at right angles, so it has the advantages of strong bending resistance in all directions, simple construction, cost savings and light structural weight. It is widely used in various civil and industrial building structures, various large-span industrial plants, modern high-rise buildings, large bridges, heavy equipment, highways, ship frames, mine support, foundation treatment, dam projects, etc.

[0003] H-shaped steel is a large component with a large weight. During construction, it needs to be placed and turned over. However, due to the large weight of the H-shaped steel itself, manual turning is more labor-intensive and resource-intensive. In addition, it is inconvenient to control the steel body during turning. When it falls to the ground after turning, it is easy to cause a large impact, resulting in a dent on the bottom surface, or scratches or even dents on the surface of the steel body. Summary of the Invention

[0004] In order to solve the problem that the existing H-shaped steel is laborious to turn over during construction and is easily damaged during the turning process, the present invention provides a large-scale component protective turning device and a turning method thereof to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A protective turning device for a large component and a turning method thereof, comprising a support base and a jack, the top surface of the support base being provided with a jack, two output ends of the jacks being fixed with a fixing plate, the top surface of the fixing plate being fixed with a supporting plate by bolts, the top surface of the supporting plate being provided with a servo motor 1, a supporting box being fixed on the output rod of the servo motor 1, a servo motor 2 being provided at one end of the supporting box, a screw rod being rotatably connected to the inside of the supporting box through a bearing, a sliding sleeve being threadedly sleeved on the screw rod, a connecting plate being fixed to the sliding sleeve extending to the outside of the supporting box and to the end of the supporting box close to the servo motor 2, a supporting frame being fixed to the side of the two connecting plates away from the supporting box, a servo cylinder being provided on the top of each supporting frame, the output rod of the servo cylinder slidingly passing through the inside of the supporting frame and being fixed with a fixing splint.

[0007] Furthermore, a linkage plate is rotatably sleeved on the end of the jack pressure rod, a pressing rod is symmetrically fixed to the end of the linkage plate away from the jack, a sliding rod is fixed to the middle of the bottom surface of the support plate, a sliding sleeve is provided on the sliding rod, and the bottom surface of the sliding sleeve is fixed to the top surface of the support base.

[0008] Furthermore, a gear ring is fixed to the support box of the outer ring of the output rod of the servo motor one by bolts, and a gear is meshed and connected to the side of the gear ring. The gear is fixed to the output rod of the servo motor three, and the servo motor three is fixedly mounted on the top surface of the support plate.

[0009] Furthermore, the output rods of the servo motor 1 and the servo motor 3 are both rotatably connected to a support sleeve through bearings, the bottom surface of the support sleeve is fixed to the top surface of the support plate, and the diameter of the gear is larger than the diameter of the gear ring.

[0010] Furthermore, the support frame is configured to be a horizontally placed U-shape, and sliding rods are fixed on the fixed splints on both sides of the servo cylinder output rod, and the two sliding rods are slidably inserted into the inside of the support frame, and the fixed splint and the side of the support frame away from the servo cylinder are glued and fixed with anti-slip rubber pads.

[0011] Furthermore, pulleys are provided on both sides of the pressing rod, a slide is fixed on the top of the pulley, the top of the slide is rotatably connected to a lifting screw through a bearing, the lifting screw is threadedly sleeved inside the support plate, and the side of the support plate is fixed to the top surface of the support base.

[0012] Furthermore, the two support plates are both arranged in an inverted L-shape, the distance between the top bottom surface of the support plate and the bottom surface of the support base is greater than the sum of the heights of the pulley and the skateboard, the distance between the top bottom surface of the support plate and the bottom surface of the support base is less than the sum of the heights of the pulley, the lifting screw and the skateboard, the side edge of the skateboard is slidably connected to a limit plate, and the limit plate is fixed on the inner wall of the support plate.

[0013] Furthermore, a pull rod is provided on the top surface of the support base between the two support plates, and a folding rod 1 is fixed at both ends of the pull rod, and a fixed rod is slidably sleeved inside the two folding rods 1, and a folding rod 2 is provided on the outside of the two folding rods 1, and one end of the fixed rod extending to the outside of the folding rod 1 is fixed on the side wall of the folding rod 2, and a fixed side plate is provided on the outside of the two folding rods 1, and the two fixed side plates are fixed on the top surface of the support base, and a movable screw is fixed on the outside of the folding rod 2 away from the fixed rod end, and the two movable screws are slidably inserted in the inside of the fixed side plate, and a fixing nut is threadedly sleeved on one end of the movable screw extending to the outside of the fixed side plate.

[0014] Furthermore, each of the fixed rods and movable screws is arranged in a horizontally placed T-shape, and adjustment grooves that cooperate with the fixed rod or movable screw are respectively opened inside the folding rod 1 and the fixed side plate, and the height of the folding rod 2 and the fixing nut is greater than the height of the adjustment groove.

[0015] Furthermore, a turning method of a large-scale component protective turning device is provided, the turning method comprising the following steps:

[0016] Step (A): Move the two turning devices to both ends of the H-beam;

[0017] Step (A1): Twist the fixing nuts on both sides to release the clamping of the fixing nuts on the fixed side panels. After release, hold the pull rod and pull the folding rod 1 and the folding rod 2 to unfold the folding rod 1 and the folding rod 2. After unfolding, twist the fixing nuts to re-clamp the fixed side panels.

[0018] Step (A2): rotating the lifting screw so that the lifting screw drives the pulley to move downward. When the pulley moves downward, the slide plate is driven to slide on the limit plate until the bottom of the pulley is located below the bottom of the support base. The support base is rotated with the pulley as a fulcrum so that the bottom of the pulley contacts the ground. The support base is supported by the pulley. The pull rod is held to pull the support base. With the support of the pulley, the support base is moved to the two ends of the H-shaped steel;

[0019] Step (A3): Move the support base until the support box is parallel to the end of the steel bar. Hold the pressing rod and press the jack rod to adjust the height of the support frame according to the height of the H-shaped steel bar. When the support plate moves, it drives the sliding rod to slide inside the sliding sleeve so that the support frame is sleeved in the middle of the H-shaped steel bar or the top of the H-shaped steel bar.

[0020] Step (A4): Place the immovable support frame on one side of the H-shaped steel end, then rotate the lifting screw in the opposite direction so that the pulley moves up to the bottom and is located above the support base. Lay the support base flat and support the jack through the support base.

[0021] Step (B), clamping the H steel and turning it over;

[0022] Step (B1): The servo motor 2 drives the screw inside the support box to rotate, and the screw drives the sliding sleeve to slide inside the support box, adjusting the distance between the two support frames so that the two support frames are symmetrically distributed on the H steel;

[0023] Step (B2): The two servo cylinders are operated to push the fixed clamping plate downward, and the fixed clamping plate moves downward to cooperate with the support frame to clamp the H-shaped steel plate. After the two turning devices are fixed to the two ends of the H-shaped steel, the pressing rod is pressed, so that the pressing rod drives the supporting plate upward, thereby driving the H-shaped steel to move upward stably through the support box and the support frame;

[0024] Step (B3): After the H-shaped steel is driven to the bottom and separated from the ground, the servo motors 1 and 3 at both ends of the steel are operated simultaneously. The servo motor 1 directly drives the support box to rotate, and the servo motor 3 drives the gear to rotate. When the gear rotates, it drives the gear ring to rotate. The gear ring then drives the support box to rotate, and the auxiliary support box drives the steel to turn over.

[0025] Step (B4): Turn the steel material over to the desired state. After the turning is completed, hold the pressing rod to control the jack, so that the jack drives the supporting plate to move downward, thereby driving the steel material to move downward and land smoothly on the ground, completing the turning;

[0026] Step (B5): After the turning is completed, the servo motor 1 and the servo motor 3 are turned off, and the servo cylinder is operated to drive the fixed clamping plate away from the steel material, so that the clamping fixation of the fixed clamping plate on the steel material is released. After the release, the support base is pulled outward, so that the support base drives the support frame to separate from the steel material;

[0027] Step (C), folding the turning device;

[0028] Step (C1): After the steel is turned over, the turning devices at both ends are pulled away from the steel. If long-distance movement is required, the lifting screw is screwed again to drive the pulley downward, and the support base is rotated to move through the pulley. At the same time, servo motor 1 and servo motor 3 are running to rotate the support box to a horizontal state and reset;

[0029] Step (C2), after the turning device is moved, rotate the lifting screw to move the pulley up and retract it, then rotate the folding rod one, move the folding rod one to the inside of the folding rod two and retract it, after retracting it, turn the fixing nut, rotate the folding rod two to retract it to the inside of the fixed side panel, fold the folding rod one and the folding rod two on the inside of the fixed side panel, and then turn the fixing nut so that the fixing nut is re-clamped to fix the fixed side panel.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the present invention, by cooperating with the support frame and the fixed clamping plate, when the H-shaped steel needs to be rotated, the two ends of the H-shaped steel are clamped and raised before being rotated. After being rotated to the required surface facing the bottom surface, the H-shaped steel is lowered smoothly, which solves the problem that the existing H-shaped steel is laborious to turn over during construction and is easily damaged during the turning process. It makes the H-shaped steel more labor-saving when turning over, avoids scratches or even deformation caused by impact during turning over, and also avoids dents on the bottom surface caused by impact, thereby improving the safety of the H-shaped steel when turning over.

[0032] 2. In the present invention, the side gear ring and gear can assist the servo motor to drive the support box to rotate when clamping the H-shaped steel. At the same time, the liftable pulley at the bottom can be supported by the support base when turning over, making the H-shaped steel more labor-saving and stable when rotating.

[0033] 3. In the present invention, through the movable design of the supporting base, when turning over, it is convenient to move the two turning devices to the two ends of the H-shaped steel respectively, which can adapt to H-shaped steels of different lengths, ensuring the applicability of the turning device. When in use, the mobile base is pulled by the folding rod, making the turning device more convenient and labor-saving when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] Figure 1 This is a schematic structural diagram of a protective turning device according to an embodiment of the present application;

[0036] Figure 2 yes Figure 1 A schematic structural diagram of the protective turning device from another perspective in the illustrated embodiment;

[0037] Figure 3 yes Figure 1 A bottom view schematic diagram of the protective turning device structure in the illustrated embodiment;

[0038] Figure 4 yes Figure 1 A schematic diagram of the structure of the protective turning device after rotation in the embodiment shown;

[0039] Figure 5 yes Figure 1 A schematic diagram of the structure of the protective turning device in the embodiment shown in FIG.

[0040] Figure 6 yes Figure 1 A schematic front view of a local structure in the embodiment shown;

[0041] Figure 7 yes Figure 1 Schematic diagram of the folding rod connection structure in the embodiment shown.

[0042] The meanings of the reference numerals in the figure are: 1. Support base; 2. Jack; 3. Fixed plate; 4. Support plate; 5. Servo motor one; 6. Support box; 7. Servo motor two; 8. Connecting plate; 9. Support frame; 10. Servo cylinder; 11. Sliding rod; 12. Fixed splint; 13. Sliding rod; 14. Sliding sleeve; 15. Pressing rod; 16. Gear ring; 17. Gear; 18. Servo motor three; 19. Pulley; 20. Lifting screw; 21. Support plate; 22. Slide plate; 23. Limiting plate; 24. Sliding sleeve; 25. Pull rod; 26. Fixed rod; 27. Folding rod one; 28. Folding rod two; 29. ​​Fixed side plate; 30. Moving screw; 31. Adjusting slot; 32. Fixing nut; 33. Support sleeve; 34. Linkage plate. DETAILED DESCRIPTION

[0043] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] Reference Figures 1 to 7 A protective turning device for a large component and a turning method thereof, comprising a support base 1 and a jack 2, a jack 2 being provided on the top surface of the support base 1, a fixing plate 3 being fixed to the output ends of the two jacks 2, a support plate 4 being fixed to the top surface of the fixing plate 3 by bolts, a servo motor 1 5 being provided on the top surface of the support plate 4, a support box 6 being fixed to the output rod of the servo motor 1 5, a servo motor 2 7 being provided at one end of the support box 6, a screw rod being connected to the inside of the support box 6 by a bearing, a sliding sleeve 14 being provided on a threaded sleeve of the screw rod, a connecting plate 8 being fixed to the sliding sleeve 14 extending to the outside of the support box 6 and to the end of the support box 6 close to the servo motor 2 7, a supporting frame 9 being fixed to the two connecting plates 8 on the side away from the support box 6, a servo cylinder 10 being provided on the top of each support frame 9, and a fixed splint 12 being fixed to the inside of the support frame 9.

[0045] Specifically, a linkage plate 34 is rotatably sleeved on the end of the pressure rod of the jack 2, and a pressing rod 15 is symmetrically fixed on the end of the linkage plate 34 away from the jack 2, which is convenient for controlling the two jacks 2 at the same time. A sliding plug rod 11 is fixed to the middle of the bottom surface of the support plate 4, and a sliding sleeve 24 is slidingly sleeved on the sliding plug rod 11, so that the support plate 4 is more stable during lifting. The bottom surface of the sliding sleeve 24 is fixed to the top surface of the support base 1, and the support frame 9 is set to a horizontally placed U-shape. Slide rods 13 are fixed on the fixed splints 12 on both sides of the output rod of the servo cylinder 10. The two slide rods 13 are slidably inserted into the inside of the support frame 9, and the fixed splint 12 and the side of the support frame 9 away from the servo cylinder 10 are glued and fixed with anti-slip rubber pads.

[0046] As an optimization solution, Figure 3 and Figure 5 As shown, a gear ring 16 is fixed to the support box 6 of the outer ring of the output rod of the servo motor 1 5 by bolts, and a gear 17 is meshed and connected to the side of the gear ring 16. The gear 17 is fixed to the output rod of the servo motor 3 18. The servo motor 3 18 is fixedly mounted on the top surface of the support plate 4. The diameter of the gear 17 is larger than the diameter of the gear ring 16, so that when the gear 17 rotates, it can drive the gear ring 16 to rotate more stably and labor-savingly, avoiding the inability to rotate when turning over due to the excessive weight of the H-shaped steel.

[0047] As a further optimization scheme, pulleys 19 are provided on both sides of the pressing rod 15, and a slide 22 is fixed on the top of the pulley 19. The top of the slide 22 is rotatably connected to the lifting screw 20 through a bearing. The lifting screw 20 is threadedly sleeved inside the support plate 21, and the side of the support plate 21 is fixed to the top surface of the support base 1. The two support plates 21 are both arranged in an inverted L shape. The distance between the top bottom surface of the support plate 21 and the bottom surface of the support base 1 is greater than the sum of the heights of the pulley 19 and the slide 22. The distance between the top bottom surface of the support plate 21 and the bottom surface of the support base 1 is less than the sum of the heights of the pulley 19, the lifting screw 20 and the slide 22. The side of the slide 22 is slidably sleeved on the limit plate 23, and the limit plate 23 is fixed on the inner wall of the support plate 21.

[0048] As a further optimization solution, a pull rod 25 is provided on the top surface of the support base 1 between the two support plates 21, and a folding rod 27 is fixed at both ends of the pull rod 25. A fixed rod 26 is slidably sleeved inside the two folding rods 27, and a folding rod 28 is provided on the outside of the two folding rods 27. One end of the fixed rod 26 extending to the outside of the folding rod 27 is fixed on the side wall of the folding rod 28, and a fixed side plate 29 is provided on the outside of the two folding rods 27. The two fixed side plates 29 are fixed on the top surface of the support base 1, and the folding rod 2 A movable screw 30 is fixed to the outer side of the end 28 away from the fixed rod 26. Each fixed rod 26 and movable screw 30 is set to a horizontally placed T-shape. The two movable screws 30 are slidably inserted into the fixed side plate 29. Adjustment grooves 31 that cooperate with the fixed rod 26 or the movable screw 30 are respectively opened inside the folding rod 1 27 and the fixed side plate 29. The height of the folding rod 28 and the fixing nut 32 is greater than the height of the adjusting groove 31. The fixing nut 32 is threadedly sleeved on one end of the movable screw 30 extending to the outside of the fixed side plate 28.

[0049] Working principle: Move the two turning devices to both ends of the H-shaped steel, screw the fixing nuts 32 on both sides to release the clamping of the fixing nuts 32 on the fixed side plate 29, after releasing, hold the pull rod 25, pull the folding rod 1 27 and the folding rod 28, unfold the folding rod 1 27 and the folding rod 28, after unfolding, screw the fixing nuts 32 so that the fixing nuts 32 re-clamp the fixed side plate 29, rotate the lifting screw 20, so that the lifting screw 20 drives the pulley 19 to move downward, when the pulley 19 moves downward, it drives the slide plate 22 to slide on the limit plate 23 until the bottom of the pulley 19 is located below the bottom of the support base 1, and rotate the support base 1 with the pulley 19 as the fulcrum so that the bottom of the pulley 19 contacts the ground, through The pulley 19 supports the support base 1, and the gripping rod 25 pulls the support base 1. Under the support of the pulley 19, the support base 1 is moved to both ends of the H-shaped steel. The support base 1 moves to the support box 6 and is parallel to the end of the steel. The gripping pressing rod 15 presses the jack 2 pressing rod, and the height of the support frame 9 is adjusted according to the height of the H-shaped steel. When the support plate 4 moves, it drives the sliding plug rod 11 to slide inside the sliding sleeve 24, so that the support frame 9 is sleeved in the middle of the H-shaped steel, or on the top of the H-shaped steel, and the immovable support frame 9 is placed on one side of the end of the H-shaped steel. Then, the lifting screw 20 is rotated in the opposite direction, so that the pulley 19 moves up to the bottom above the support base 1, and the support base 1 is leveled, and the jack 2 is supported by the support base 1;

[0050] To clamp the H-shaped steel and turn it over, the servo motor 2 7 runs to drive the screw inside the support box 6 to rotate, and the screw drives the sliding sleeve 14 to slide inside the support box 6, adjusting the distance between the two support frames 9 so that the two support frames 9 are symmetrically distributed on the H-shaped steel. The two servo cylinders 10 run to push the fixed splint 12 down, and the fixed splint 12 moves down to cooperate with the support frame 9 to clamp the H-shaped steel plate. After the two turning devices are fixed to the two ends of the H-shaped steel respectively, the pressing rod 15 is pressed so that the pressing rod 15 drives the support plate 4 to move up, thereby driving the H-shaped steel to move up stably through the support box 6 and the support frame 9. After the H-shaped steel is driven to the bottom and separated from the ground, the servo motor 1 5 and the servo motor 3 18 at both ends of the steel run simultaneously. , the servo motor 15 directly drives the support box 6 to rotate, the servo motor 3 18 drives the gear 17 to rotate, and when the gear 17 rotates, it drives the gear ring 16 to rotate, and the gear ring 16 drives the support box 6 to rotate, and the auxiliary support box 6 drives the steel to turn over, and turns the steel to the required state. After the turning is completed, hold the pressing rod 15 to control the jack 2, so that the jack 2 drives the support plate 4 to move down, thereby driving the steel to move down and land smoothly on the ground, completing the turning. After the turning is completed, turn off the servo motor 15 and the servo motor 3 18, and the servo cylinder 10 runs to drive the fixed splint 12 away from the steel, so that the clamping of the fixed splint 12 on the steel is released. After the release, pull the support base 1 outward so that the support base 1 drives the support frame 9 to separate from the steel.

[0051] Retract the turning device. After the steel is turned over, pull the turning devices at both ends away from the steel. When long-distance movement is required, screw the lifting screw 20 again to drive the pulley 19 downward, rotate the support base 1 to move through the pulley 19, and at the same time, the servo motor 1 5 and the servo motor 3 18 are running to rotate the support box 6 to the horizontal state and reset it. After the turning device is moved, rotate the lifting screw 20 to move the pulley 19 upward and retract it, then rotate the folding rod 1 27, move the folding rod 1 27 to the inside of the folding rod 2 28 and retract it. After retracting, screw the fixing nut 32, rotate the folding rod 2 28 to retract it to the inside of the fixed side plate 29, fold the folding rod 1 27 and the folding rod 2 28 inside the fixed side plate 29, and then screw the fixing nut 32 so that the fixing nut 32 is clamped and fixed to the fixed side plate 29 again.

[0052] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and scope of the appended claims are intended to be included herein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0053] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A protective turning device for large components, characterized by: The invention comprises a support base (1) and a jack (2), wherein the top surface of the support base (1) is provided with a jack (2), the output ends of the two jacks (2) are fixed with a fixing plate (3), the top surface of the fixing plate (3) is fixed with a supporting plate (4) by bolts, the top surface of the supporting plate (4) is provided with a servo motor 1 (5), the output rod of the servo motor 1 (5) is fixed with a support box (6), one end of the support box (6) is provided with a servo motor 2 (7), the interior of the support box (6) is connected to the servo motor 1 (5) by a bearing. A screw rod is connected, and a sliding sleeve (14) is provided on the screw rod. The sliding sleeve (14) extends to the outside of the support box (6) and is fixed with a connecting plate (8) at one end of the support box (6) close to the servo motor 2 (7). A support frame (9) is fixed on the side of the two connecting plates (8) away from the support box (6). A servo cylinder (10) is provided on the top of each support frame (9). The output rod of the servo cylinder (10) slides through the support frame (9) and is fixed with a fixed clamping plate (12). The end of the pressure rod of the jack (2) is rotatably sleeved with a linkage plate (34), and a pressing rod (15) is symmetrically fixed to the end of the linkage plate (34) away from the jack (2). A sliding rod (11) is fixed to the middle of the bottom surface of the support plate (4), and a sliding sleeve (24) is slidably sleeved on the sliding rod (11), and the bottom surface of the sliding sleeve (24) is fixed to the top surface of the support base (1); Pulleys (19) are provided on both sides of the pressing rod (15), a slide plate (22) is fixed on the top of each pulley (19), and a lifting screw (20) is rotatably connected to the top of each slide plate (22) through a bearing, and the lifting screw (20) is threadedly sleeved inside the support plate (21), and the side of the support plate (21) is fixed to the top surface of the support base (1); A pull rod (25) is provided on the top surface of the support base (1) between the two support plates (21), and a folding rod (27) is fixed at both ends of the pull rod (25), and a fixed rod (26) is slidably sleeved inside the two folding rods (27), and a folding rod (28) is provided on the outside of the two folding rods (27), and one end of the fixed rod (26) extending to the outside of the folding rod (27) is fixed on the side wall of the folding rod (28), and a fixed side plate (29) is provided on the outside of the two folding rods (27), and the two fixed side plates (29) are fixed on the top surface of the support base (1), and a movable screw (30) is fixed on the outside of the end of the folding rod (28) away from the fixed rod (26), and the two movable screws (30) are slidably inserted into the inside of the fixed side plate (29), and one end of the movable screw (30) extending to the outside of the fixed side plate (29) is threadedly sleeved with a fixing nut (32).

2. The protective turning device for large components according to claim 1, characterized in that: A gear ring (16) is fixed to the support box (6) of the outer ring of the output rod of the servo motor 1 (5) by bolts, and a gear (17) is meshed and connected to the side of the gear ring (16). The gear (17) is fixed to the output rod of the servo motor 3 (18), and the servo motor 3 (18) is fixedly mounted on the top surface of the support plate (4).

3. The protective turning device for large components according to claim 2, characterized in that: The output rods of the servo motor 1 (5) and the servo motor 3 (18) are both rotatably connected to a support sleeve (33) through bearings. The bottom surface of the support sleeve (33) is fixed to the top surface of the support plate (4). The diameter of the gear (17) is larger than the diameter of the gear ring (16).

4. The protective turning device for large components according to claim 1, characterized in that: The support frame (9) is configured to be U-shaped and placed horizontally, and sliding rods (13) are fixed on the fixed splints (12) on both sides of the output rod of the servo cylinder (10), and the two sliding rods (13) are slidably inserted into the interior of the support frame (9), and anti-slip rubber pads are glued and fixed on the side of the fixed splint (12) and the interior of the support frame (9) away from the servo cylinder (10).

5. The protective turning device for large components according to claim 1, characterized in that: The two support plates (21) are both configured to be in an inverted L-shape. The distance between the top bottom surface of the support plate (21) and the bottom surface of the support base (1) is greater than the sum of the heights of the pulley (19) and the slide plate (22). The distance between the top bottom surface of the support plate (21) and the bottom surface of the support base (1) is less than the sum of the heights of the pulley (19), the lifting screw (20) and the slide plate (22). The side of the slide plate (22) is slidably sleeved on a limit plate (23), and the limit plate (23) is fixed on the inner wall of the support plate (21).

6. The protective turning device for large components according to claim 1, characterized in that: Each of the fixed rod (26) and the movable screw rod (30) is arranged in a transverse T-shape, and an adjustment groove (31) is respectively provided inside the folding rod (27) and inside the fixed side plate (29) to cooperate with the fixed rod (26) or the movable screw rod (30), and the height of the folding rod (28) and the fixing nut (32) is greater than the height of the adjustment groove (31).

7. A turning method for a large-scale component protective turning device according to any one of claims 1 to 6, characterized in that: Described turning over method comprises the following steps: Step (A): Move the two turning devices to both ends of the H-beam; Step (A1): Twist the fixing nuts (32) on both sides to release the clamping of the fixing nuts (32) on the fixed side plate (29). After release, hold the pull rod (25) and pull the folding rod 1 (27) and the folding rod 2 (28) to unfold the folding rod 1 (27) and the folding rod 2 (28). After unfolding, twist the fixing nuts (32) so that the fixing nuts (32) re-clamp and fix the fixed side plate (29). Step (A2): rotating the lifting screw (20) so that the lifting screw (20) drives the pulley (19) to move downward. When the pulley (19) moves downward, it drives the slide plate (22) to slide on the limit plate (23) until the bottom of the pulley (19) is located below the bottom of the support base (1). The support base (1) is rotated with the pulley (19) as a fulcrum so that the bottom of the pulley (19) contacts the ground. The support base (1) is supported by the pulley (19). The support base (1) is pulled by holding the pull rod (25). With the support of the pulley (19), the support base (1) is moved to both ends of the H-shaped steel. Step (A3): the support base (1) is moved until the support box (6) is parallel to the end of the steel, the pressing rod (15) is held and pressed by the jack (2), and the height of the support frame (9) is adjusted according to the height of the H-shaped steel. When the support plate (4) moves, the sliding rod (11) is driven to slide inside the sliding sleeve (24), so that the support frame (9) is sleeved on the middle of the H-shaped steel or the top of the H-shaped steel; Step (A4): Place the immovable support frame (9) on one side of the end of the H-shaped steel, then rotate the lifting screw (20) in the opposite direction so that the pulley (19) moves up to the bottom and is located above the support base (1), and the support base (1) is laid flat, and the jack (2) is supported by the support base (1); Step (B), clamping the H steel and turning it over; Step (B1), the servo motor 2 (7) is operated to drive the internal screw of the support box (6) to rotate, and the screw drives the sliding sleeve (14) to slide inside the support box (6), and adjusts the distance between the two support frames (9) so that the two support frames (9) are symmetrically distributed on the H steel; In step (B2), the two servo cylinders (10) are operated to push the fixed clamping plate (12) downward, and the fixed clamping plate (12) moves downward to cooperate with the support frame (9) to clamp the H-shaped steel plate. After the two turning devices are fixed to the two ends of the H-shaped steel, the pressing rod (15) is pressed, so that the pressing rod (15) drives the supporting plate (4) to move upward, thereby driving the H-shaped steel to move upward stably through the support box (6) and the support frame (9); In step (B3), after the H-shaped steel is driven to the bottom and separated from the ground, the servo motor 1 (5) and the servo motor 3 (18) at both ends of the steel are operated simultaneously, the servo motor 1 (5) directly drives the support box (6) to rotate, the servo motor 3 (18) drives the gear (17) to rotate, the gear (17) drives the gear ring (16) to rotate, and the gear ring (16) drives the support box (6) to rotate, and the auxiliary support box (6) drives the steel to turn over; Step (B4): Turn the steel material over to the desired state. After the turning is completed, hold the pressing rod (15) to control the jack (2), so that the jack (2) drives the supporting plate (4) to move downward, thereby driving the steel material to move downward and land smoothly on the ground, completing the turning; After step (B5) of turning over is completed, the servo motor 1 (5) and the servo motor 3 (18) are turned off, and the servo cylinder (10) is operated to drive the fixed clamp (12) away from the steel material, so that the clamping of the fixed clamp (12) on the steel material is released. After the release, the support base (1) is pulled outward, so that the support base (1) drives the support frame (9) to separate from the steel material; Step (C), folding the turning device; Step (C1): After the steel is turned over, the turning devices at both ends are pulled away from the steel. When long-distance movement is required, the lifting screw (20) is screwed again to drive the pulley (19) to move downward, and the support base (1) is rotated to move through the pulley (19). At the same time, the servo motor 1 (5) and the servo motor 3 (18) are operated to rotate the support box (6) to a horizontal state and reset; After the turning device is moved in step (C2), the lifting screw (20) is rotated to move the pulley (19) upward and retract it, and then the folding rod (27) is rotated to move the folding rod (27) to the inside of the folding rod (28) and retract it. After retracting it, the fixing nut (32) is turned to rotate the folding rod (28) to retract it to the inside of the fixed side plate (29). After the folding rod (27) and the folding rod (28) are folded inside the fixed side plate (29), the fixing nut (32) is turned so that the fixing nut (32) is clamped and fixed to the fixed side plate (29) again.

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