Hydraulic rotary horizontal coil clamp

Abstract

The present application relates to hoisting clamping equipment technical field, the present application discloses a kind of hydraulic rotary horizontal roll clamp, including frame body and be located on the rotating connecting frame of frame body, the both sides of the cavity of frame body are provided with beam connecting arm and can be extended into and extended, the part of beam connecting arm extended frame body is provided with clamping arm;The first clamping arm and the second clamping arm are oppositely parallel, and the opposite face bottom end is all provided with the receiving component for receiving material.Through the embedded sliding connection design of first plate body extension, second plate body extension and beam connecting arm, after beam connecting arm extends, still can keep with the large-area contact of frame body, the stress concentrated in the end of frame body is dispersed to the entire frame body inner wall, effectively avoid frame body deformation and beam connecting arm bending, substantially improve the structural stability and carrying capacity of clamp in large-stroke telescopic state, prolong equipment service life.

Description

Technical Field

[0001] This invention relates to the field of hoisting and clamping equipment technology, specifically a hydraulic rotary horizontal coil clamp. Background Technology

[0002] In the production, storage and transportation of steel coils, the hydraulic rotary horizontal coil clamp is the core clamping equipment. It drives the clamping arm to extend and retract through the crossbeam connecting arm to achieve adaptive clamping of steel coils of different specifications.

[0003] In existing technologies, the crossbeam connecting arm is mostly a single telescopic structure. When the crossbeam connecting arm extends from the frame to accommodate large-diameter steel coils, the effective connection area between the crossbeam connecting arm and the frame gradually decreases as the extension length increases, with the connection points concentrated only at the sliding fit points at both ends of the frame. This structure causes the clamping force, the weight of the steel coil, and the impact force during operation to be concentrated at the ends of the frame. This not only causes bending deformation of the crossbeam connecting arm itself but also easily leads to stress concentration at the ends of the frame, resulting in deformation, cracking, or even damage to the frame, seriously affecting the clamping stability and service life of the clamp.

[0004] Furthermore, the traditional vertical connection between the crossbeam connecting arm and the clamping arm lacks an effective tensile support structure. During lifting and rotating operations, the connection is prone to loosening due to uneven stress, further reducing clamping reliability. Simultaneously, during steel coil clamping, the contact between the clamping components and the steel coil is mostly point or line contact, easily causing damage such as inner edge concavity and outer edge curling, affecting the quality of the steel coil product. Therefore, there is an urgent need for a hydraulic rotary horizontal coil clamp structure that can ensure connection strength, distribute stress, and reduce steel coil damage after the crossbeam connecting arm extends. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a hydraulic rotary horizontal coil clamp, which solves the problems of reduced connection strength after the crossbeam connecting arm extends out of the frame, concentrated stress that easily leads to deformation and damage to the frame, and the tendency for inner edge concavity and outer edge curling damage to occur during the steel coil clamping process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic rotary horizontal coil clamp, comprising a frame body and a rotary connecting frame disposed on the frame body, with crossbeam connecting arms extending into and out of the inner cavity of the frame body on both sides, and clamping arms disposed on the portions of the crossbeam connecting arms extending out of the frame body. Each crossbeam connecting arm includes a first crossbeam connecting arm and a second crossbeam connecting arm located on both sides of the inner cavity of the frame body. Insertion cavities are formed inside the first and second crossbeam connecting arms, and bidirectional hydraulic cylinders are disposed within these cavities. The output ends of the bidirectional hydraulic cylinders are respectively fixedly connected to the inner cavity wall plates of the first and second crossbeam connecting arms to push and pull the first and second crossbeam connecting arms to extend into and out of the inner cavity of the frame body. The top plate of the second crossbeam connecting arm extends towards the second crossbeam connecting arm to form a first plate extension. The bottom plate of the first crossbeam connecting arm extends towards the second crossbeam connecting arm to form a second plate extension. The bottom of the first crossbeam connecting arm and the top of the second crossbeam connecting arm are provided with second guide rails that can cover the second plate extension and the first plate extension. The upper and lower walls at both ends of the inner cavity of the frame are provided with first sliders that are slidably connected to the second guide rails. The top of the first crossbeam connecting arm and the bottom of the second crossbeam connecting arm are both provided with first guide rails. The first guide rail at the top of the first crossbeam connecting arm is slidably connected to the first plate extension, and the first guide rail at the bottom of the second crossbeam connecting arm is slidably connected to the second plate extension.

[0007] Preferably, the clamping arm includes a first clamping arm vertically fixedly connected to the end of the first crossbeam connecting arm extending out of the inner cavity of the frame body and a second clamping arm fixedly connected to the end of the second crossbeam connecting arm extending out of the inner cavity of the frame body. The first clamping arm and the second clamping arm are arranged in parallel relative to each other, and the bottom ends of their opposing surfaces are each provided with a receiving component for receiving materials. The receiving component includes a receiving block.

[0008] A tensioning mechanism is provided at the connection between the second clamping arm and the second crossbeam connecting arm, as well as at the connection between the first clamping arm and the first crossbeam connecting arm. The tensioning mechanism includes a pull rod arranged at an angle.

[0009] The top of the first crossbeam connecting arm has an upper recess that can accommodate the extension of the first plate; the bottom of the second crossbeam connecting arm has a lower recess that can accommodate the extension of the second plate.

[0010] Preferably, the inner cavity of the frame body is provided with a second slider at the top left side and the bottom right side, which slides in cooperation with the first guide rail.

[0011] Preferably, a fixing seat for fixing a bidirectional hydraulic cylinder is fixedly provided in the middle of the inner cavity of the frame body.

[0012] Preferably, the tensioning mechanism further includes a third guide rail fixed to the top of the first crossbeam connecting arm and the side wall of the second crossbeam connecting arm, a third slider slidably disposed on the third guide rail, and the pull rod includes a telescopic rod, one end of which is hinged to the third slider and the other end of which is hinged to the first clamping arm and the second clamping arm.

[0013] Preferably, a limit block and a blocking block are fixedly provided at both ends of the third guide rail, and the blocking block is connected to the third slider through an elastic element.

[0014] Preferably, the top surface of the receiving block is a first arc-shaped surface, and an inner support body is fixedly provided on the inner side.

[0015] Preferably, the inner support body includes a horizontal support plate and a vertical support plate arranged perpendicularly to each other, with the top of the vertical support plate abutting against the bottom of the first arc-shaped surface.

[0016] Preferably, a first side receiving block and a second side receiving block are hinged to both sides of the receiving block, the outer wall surfaces of the first side receiving block and the second side receiving block are second arc-shaped surfaces, and a hydraulic cylinder is hinged to both sides of the receiving block, the other end of the hydraulic cylinder being hinged to the first side receiving block and the second side receiving block.

[0017] Preferably, the inner sidewalls of the first clamping arm and the second clamping arm are provided with protective pads. The protective pads include a base plate, and a flexible rubber protective plate is embedded in the inner side of the base plate. The outer wall surface of the flexible rubber protective plate is provided with protrusions and recesses at intervals from top to bottom. The base plate is laterally fixed with a plurality of pressure plates that can be pressed into the recesses.

[0018] The beneficial effects of the present invention are as follows: By using the hydraulic rotary horizontal coil clamp provided by the present invention, the following technical effects are achieved:

[0019] 1. Through the embedded sliding connection design of the first plate extension, the second plate extension and the crossbeam connecting arm, the crossbeam connecting arm can still maintain a large area of ​​contact with the frame after it is extended. This disperses the force concentrated at the end of the frame to the inner wall of the entire frame, effectively avoiding frame deformation and crossbeam connecting arm bending. This significantly improves the structural stability and load-bearing capacity of the clamp under large stroke extension and retraction, and extends the service life of the equipment.

[0020] 2. The tensioning mechanism, driven by an elastic element, engages with a third slider and a third guide rail to automatically form a rigid oblique support when the telescopic rod extends from the crossbeam connecting arm. This provides continuous tensile force at the vertical connection between the crossbeam connecting arm and the clamping arm, preventing loosening or deformation at the connection. Simultaneously, the arc-shaped main bearing surface of the receiving component engages with the flip-up side bearing block to form multi-point arc-shaped contact, increasing the contact area with the inner edge of the steel coil. This not only improves stability during the lifting process but also avoids damage to the inner edge of the steel coil caused by point contact. Attached Figure Description

[0021] Figure 1 This is an isometric view of the present invention;

[0022] Figure 2 This is a front view of the horizontal roll clamp of the present invention in the clamping state;

[0023] Figure 3 This is an isometric view of the first crossbeam connecting arm and the second crossbeam connecting arm of the present invention in a close-to-each-other state.

[0024] Figure 4 This is a front view of the horizontal roll clamp of the present invention in the released state;

[0025] Figure 5 This is an isometric view of the first crossbeam connecting arm and the second crossbeam connecting arm of the present invention in a state where they are far apart from each other.

[0026] Figure 6 This is the main view of the receiving component of the present invention;

[0027] Figure 7 for Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 8 This is a schematic diagram of the protective pad structure of the present invention.

[0029] Explanation of reference numerals in the figures: 1. Rotating connecting frame; 2. Frame body; 3. First crossbeam connecting arm; 4. Second crossbeam connecting arm; 5. First clamping arm; 6. Second clamping arm; 7. Protective pad; 71. Base plate; 72. Flexible rubber protective plate; 73. Protrusion; 74. Recess; 75. Pressure plate; 8. Receiving assembly; 81. Receiving block; 82. First arc-shaped surface; 83. Inner support body; 831. Horizontal support plate; 832. Vertical support plate; 84. First side receiving block 85. Second side receiving block; 86. Second arc-shaped surface; 87. Hydraulic cylinder; 9. First slider; 10. Second slider; 11. First guide rail; 12. First plate extension; 13. Second guide rail; 14. Bidirectional hydraulic cylinder; 15. Second plate extension; 16. Upper recess; 17. Lower recess; 18. Fixed seat; 19. Insertion cavity; 20. Third guide rail; 21. Third slider; 22. Limiting block; 23. Sealing block; 24. Elastic element; 25. Telescopic rod. Detailed Implementation

[0030] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Various changes can be made to the implementation schemes as long as the effects of the present invention can be achieved.

[0032] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0033] like Figures 1-8 As shown, this embodiment discloses a hydraulic rotary horizontal coil clamp, including a frame body 2 and a rotary connecting frame 1 disposed on the frame body 2. The top of the rotary connecting frame 1 is connected to a swing frame. The rotation of the swing frame can drive the entire clamp body and the clamped steel coil to complete a 360° rotation operation, meeting the posture adjustment requirements under different working scenarios. The frame body 2 is a hollow structure with both ends through. The inner cavity of the frame body 2 has horizontal beam connecting arms that can extend into and out on both sides. The part of the horizontal beam connecting arms that extends out of the frame body 2 is provided with clamping arms. By clamping the steel coil through the horizontal beam connecting arms that extend into and out on both sides of the frame body 2, the clamping and releasing actions of steel coils of different diameter specifications can be realized. The frame body 2 is preferably made of high-strength alloy steel and is integrally welded, which has sufficient structural strength to withstand various loads in the clamping operation.

[0034] like Figures 1 to 5As shown, the crossbeam connecting arms in this embodiment include a first crossbeam connecting arm 3 and a second crossbeam connecting arm 4 located on both sides of the inner cavity of the frame body 2. Both have a mirror-symmetrical design and adopt a hollow box-type structure, effectively reducing their weight and driving energy consumption while ensuring structural strength. Inside the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4, there is an integrally formed insertion cavity 19 extending along the length direction. A bidirectional hydraulic cylinder 14 is installed inside the insertion cavity 19. A fixing seat 18 for fixing the bidirectional hydraulic cylinder 14 is fixedly installed in the middle of the inner cavity of the frame body 2. The fixing seat 18 is made of thickened steel plate, and its two ends are welded to the inner wall of the frame body 2 by reinforcing ribs to ensure the bidirectional hydraulic cylinder 14... After installation, the bidirectional hydraulic cylinder 14 will not shift due to operational vibrations, allowing it to be stably positioned within the frame 2 and located in the cavity 19 inside the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4. The output ends of the bidirectional hydraulic cylinder 14 are fixedly connected to the inner wall panels of the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4, respectively, to push and pull the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 into and out of the inner cavity of the frame 2. It should be noted that beam arms are fixedly installed inside the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4, and the output ends of the bidirectional hydraulic cylinder 14 are fixed to the beam arms, ensuring that the hydraulic driving force can be smoothly and efficiently transmitted to the crossbeam connecting arm, achieving its precise extension and retraction.

[0035] To address the technical issues of reduced connection strength and stress concentration after the beam connecting arm extends beyond frame 2, this solution proposes the following connection structure between the beam connecting arm and frame 2: Figures 2 to 5As shown, in this embodiment, the top plate of the second crossbeam connecting arm 4 extends towards the second crossbeam connecting arm 4 to form a first plate extension 12. The length of the first plate extension 12 matches the maximum extension stroke of the crossbeam connecting arm, and the width is consistent with the top plate of the second crossbeam connecting arm 4. Correspondingly, the bottom plate of the first crossbeam connecting arm 3 extends towards the second crossbeam connecting arm 4 to form a second plate extension 15. The bottom of the first crossbeam connecting arm 3 and the top of the second crossbeam connecting arm 4 are provided with second guide rails 13 that can cover the second plate extension 15 and the first plate extension 12. The upper and lower walls at both ends of the inner cavity of the frame body 2 are provided with first sliders 9 that are slidably connected to the second guide rails 13. By adopting the design of the first plate extension 12 and the second plate extension 15, the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 can extend beyond the frame body 2. The first plate extension 12 and the second plate extension 15 are connected to the inner wall of the frame body 2 via the second guide rail 13 and the first slider 9, increasing the connection area between the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 and the frame body 2. This allows the weight, tensile force, and vibration load of the steel coil borne by the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 during clamping operations to be evenly distributed to the entire inner wall of the frame body 2 through the first plate extension 12 and the second plate extension 15. This effectively avoids the problem of excessive local stress, deformation, or even cracking damage to the frame body 2 caused by the concentration of stress points at both ends of the frame body 2 in traditional structures. It also prevents deformation or even damage to the frame body 2 caused by the concentration of stress points at both ends of the frame body 2 after the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 are extended, significantly improving the structural stability and service life of the clamp under large stroke extension and retraction conditions.

[0036] Furthermore, such as Figure 2 and Figure 4 As shown, a first guide rail 11 is provided at the top of the first crossbeam connecting arm 3 and the bottom of the second crossbeam connecting arm 4. The first guide rail 11 at the top of the first crossbeam connecting arm 3 is slidably connected to the first plate extension 12, and the first guide rail 11 at the bottom of the second crossbeam connecting arm 4 is slidably connected to the second plate extension 15. This allows the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 to be connected as one unit through the first plate extension 12 and the second plate extension 15. The first plate extension 12 is clamped and connected between the first crossbeam connecting arm 3 and the frame body 2, and the second plate extension 15 is clamped and connected between the second crossbeam connecting arm 4 and the frame body 2, further enhancing the overall strength of the crossbeam connecting arm.

[0037] Furthermore, such as Figure 3 and Figure 5As shown, the top of the first crossbeam connecting arm 3 has an upper recess 16 that can accommodate the first plate extension 12; the bottom of the second crossbeam connecting arm 4 has a lower recess 17 that can accommodate the second plate extension 15; so that the crossbeam connecting arms can form a regular rectangle under the projection of the main view, and the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 can move in a relatively horizontal linear motion.

[0038] In addition, a second slider 10 is provided on the top left side and the bottom right side of the inner cavity of the frame body 2, which slides in cooperation with the first guide rail 11. The second slider 10 is fixedly set with the frame body 2 to fill the gap between the first guide rail 11 and the frame body 2, and to support the first guide rail 11 and the first crossbeam connecting arm 3 or the second crossbeam connecting arm 4.

[0039] like Figure 1 , Figure 2 , Figure 4 As shown, the clamping arm in this embodiment includes a first clamping arm 5 that is vertically fixedly connected to the end of the first crossbeam connecting arm 3 that extends out of the inner cavity of the frame body 2, and a second clamping arm 6 that is fixedly connected to the end of the second crossbeam connecting arm 4 that extends out of the inner cavity of the frame body 2. The first clamping arm 5 and the second clamping arm 6 are arranged in parallel relative to each other, and each of the opposite bottom surfaces is provided with a receiving component 8 for receiving materials. The receiving component 8 includes a receiving block 81.

[0040] It should be further explained that the receiving block 81 in this embodiment has a rectangular structure, the top surface of the receiving block 81 is a first arc-shaped surface 82, and an inner support body 83 is fixedly provided on the inner side; wherein, the first arc-shaped surface 82 is used to adapt to the inner edge of the steel coil, avoiding the point contact caused by the rectangular structure when contacting the inner edge of the steel coil, which would result in a depression of the inner edge of the steel coil; the use of the first arc-shaped surface 82 can better fit the inner wall surface of the steel coil, reducing damage to the inner edge of the steel coil; in addition, the inner support body 83 is used to support the receiving block 81, improving the strength of the receiving block 81.

[0041] Specifically, such as Figure 6 As shown, the inner support body 83 in this embodiment includes a horizontal support plate 831 and a vertical support plate 832 arranged perpendicularly to each other. The top of the vertical support plate 832 abuts against the bottom of the first arc-shaped surface 82, so that the pressure acting on the first arc-shaped surface 82 is dispersed through the horizontal support plate 831 and the vertical support plate 832, thereby increasing the bearing strength of the supporting block 81.

[0042] Furthermore, such as Figure 6As shown, in actual use, in order to increase the contact area with the inner edge of the steel coil, in this embodiment, a first side receiving block 84 and a second side receiving block 85 are respectively hinged to both sides of the receiving block 81. The outer wall surfaces of the first side receiving block 84 and the second side receiving block 85 are second arc-shaped surfaces 86. Hydraulic cylinders 87 are hinged to both sides of the receiving block 81. The other end of the hydraulic cylinder 87 is hinged to the first side receiving block 84 and the second side receiving block 85. The thrust of the hydraulic cylinder 87 pushes the first side receiving block 84 and the second side receiving block 85 to flip outward and abut against the inner edge of the steel coil, forming a multi-point contact with the receiving block 81, further increasing the contact area with the inner edge of the steel coil, further reducing damage to the inner edge of the steel coil, and simultaneously increasing the stability when lifting the steel coil.

[0043] like Figure 1 , Figure 2 and Figure 7 As shown, tensioning mechanisms are provided at the connection points of the second clamping arm 6 and the second crossbeam connecting arm 4, as well as at the connection points of the first clamping arm 5 and the first crossbeam connecting arm 3. These mechanisms are used to generate an oblique tension at the vertically connected connection points of the second clamping arm 6 and the second crossbeam connecting arm 4, and the first clamping arm 5 and the first crossbeam connecting arm 3, thereby increasing the connection strength at the connection points. The tensioning mechanism includes an obliquely arranged pull rod, which adds an oblique connecting member between the vertically connected crossbeam connecting arm and the clamping arm.

[0044] Furthermore, in this embodiment, to avoid affecting the extension and retraction of the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4, the tensioning mechanism further includes a third guide rail 20 fixed to the top of the first crossbeam connecting arm 3 and the side wall of the second crossbeam connecting arm 4. A third slider 21 is slidably disposed on the third guide rail 20. The pull rod includes a telescopic rod 25, one end of which is hinged to the third slider 21, and the other end is hinged to the first clamping arm 5 and the second clamping arm 6. Limit blocks 22 and sealing blocks 23 are respectively fixedly disposed at both ends of the third guide rail 20. The sealing block 23 is connected to the third slider 21 through an elastic element 24, which is a spring. For example, when the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 retract into the frame body 2, the edge of the frame body 2 touches the telescopic rod 25, and the top end of the telescopic rod 25 drives the third slider 21. Block 21 slides on the third guide rail 20, causing the telescopic rod 25 to retract and gradually approach the first clamping arm 5 or the second clamping arm 6, allowing the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 to retract further into the frame body 2, ensuring the clamping effect of the first clamping arm 5 or the second clamping arm 6; when the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 extend out of the frame body 2, the third slider 21 moves to the far end through the elastic pushing force of the elastic element 24, so that the telescopic rod 25 is obliquely positioned between the crossbeam connecting arm and the clamping arm; it should be further noted that when the third slider 21 slides to the farthest position, the telescopic rod 25 is at its maximum extension, that is, at this time the telescopic rod 25 is in a non-extendable state, rigidly connected between the crossbeam connecting arm and the clamping arm, providing an oblique pulling force for the vertically connected crossbeam connecting arm and the clamping arm.

[0045] In addition, such as Figure 1 and Figure 8 As shown, the inner walls of the first clamping arm 5 and the second clamping arm 6 are provided with protective pads 7 to protect the steel coil when clamping it and prevent the edge of the steel coil from curling. Specifically, the protective pad 7 includes a base plate 71, which is fixed to the first clamping arm 5 and the second clamping arm 6. A flexible rubber guard plate 72 is embedded in the inner side of the base plate 71. The outer wall of the flexible rubber guard plate 72 is provided with protrusions 73 and recesses 74 at intervals from top to bottom. Several pressure plates 75 that can be pressed into the recesses 74 are fixedly provided on the base plate 71 laterally. The pressure plates 75 are installed corresponding to the recesses 74 during installation, and the flexible rubber guard plate 72 is pressed and fixed by the pressure plates 75, so that it is limited on the base plate 71. The protrusions 73 of the flexible rubber guard plate 72 protrude from the recesses 74 and the pressure plates 75 in the top view projection. During actual clamping, the protrusions 73 are in contact with the steel coil.

[0046] The specific workflow of this embodiment is as follows:

[0047] The swing frame at the top of the rotating connecting frame 1 works with external hoisting or rotating equipment to adjust the overall posture of the clamps so that the first clamping arm 5 and the second clamping arm 6 are aligned with the two sides of the steel coil to be clamped.

[0048] When the bidirectional hydraulic cylinder 14 is activated, its two output ends push the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 respectively, causing them to extend horizontally along the inner cavity of the frame body 2. During the extension process, the first guide rail 11 at the top of the first crossbeam connecting arm 3 slides in engagement with the first plate extension 12 of the second crossbeam connecting arm 4, and the first guide rail 11 at the bottom of the second crossbeam connecting arm 4 slides in engagement with the second plate extension 15 of the first crossbeam connecting arm 3. At the same time, the first slider 9 on the frame body 2 slides in engagement with the second guide rail 13 of the crossbeam connecting arm, and the second slider 10 slides in engagement with the first guide rail 11, ensuring smooth telescopic movement and reliable connection. Then, the bidirectional hydraulic cylinder 14 drives in the opposite direction, and the first crossbeam connecting arm 3 and the second crossbeam connecting arm 4 retract into the inner cavity of the frame body 2 and are clamped on both sides of the steel coil.

[0049] When the first clamping arm 5 and the second clamping arm 6 move to the preset positions on both sides of the steel coil, the receiving block 81 of the receiving component 8 fits against the inner edge of the steel coil through the first arc surface 82. Then, the hydraulic cylinder 87 pushes the first side receiving block 84 and the second side receiving block 85 to flip outward, forming a multi-point arc contact with the receiving block 81, increasing the contact area with the inner edge of the steel coil.

[0050] The rotating connecting frame 1 drives the frame body 2 and the clamped steel coil to rotate, and works with external equipment to complete the transfer and stacking of the steel coil.

[0051] The basic principles, main features, and advantages of the present invention have been described above. However, the above description is only a specific embodiment of the present invention, and the technical features of the present invention are not limited thereto. Any other embodiments derived by those skilled in the art without departing from the technical solution of the present invention should be covered within the patent scope of the present invention.

[0052] In the description of this invention, each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. As the apparatus disclosed in the embodiments corresponds to the methods disclosed in the embodiments, the description is relatively simple, and relevant parts can be referred to the method section.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic rotary horizontal coil clamp, comprising a frame body and a rotary connecting frame arranged on the frame body, a cross beam connecting arm is arranged on both sides of the inner cavity of the frame body and can be extended and retracted, and the part of the cross beam connecting arm extending out of the frame body is provided with a clamping arm, characterized in that, The crossbeam connecting arm comprises a first crossbeam connecting arm and a second crossbeam connecting arm located on both sides of the inner cavity of the frame body, and an insertion cavity is formed inside the first crossbeam connecting arm and the second crossbeam connecting arm, a bidirectional hydraulic cylinder is arranged in the insertion cavity, and the output ends at both ends of the bidirectional hydraulic cylinder are fixedly connected with the inner cavity wall plates of the first crossbeam connecting arm and the second crossbeam connecting arm respectively, so as to push and pull the first crossbeam connecting arm and the second crossbeam connecting arm to extend into and out of the inner cavity of the frame body on both sides. The second crossbeam connecting arm is provided with a first plate body extension part formed by extending the top plate body of the second crossbeam connecting arm towards the second crossbeam connecting arm, and the first crossbeam connecting arm is provided with a second plate body extension part formed by extending the bottom plate body of the first crossbeam connecting arm towards the second crossbeam connecting arm, and the bottom of the first crossbeam connecting arm and the top of the second crossbeam connecting arm are provided with a second guide rail capable of covering the second plate body extension part and the first plate body extension part, and the upper and lower wall surfaces of the inner cavity of the frame body are provided with first sliding blocks in sliding connection with the second guide rail. The first crossbeam connecting arm and the second crossbeam connecting arm are provided with first guide rails, the first guide rail of the top of the first crossbeam connecting arm is in sliding connection with the first plate body extension part, and the first guide rail of the bottom of the second crossbeam connecting arm is in sliding connection with the second plate body extension part. The clamping arm comprises a first clamping arm fixedly connected perpendicularly to the end of the first crossbeam connecting arm extending out of the inner cavity of the frame body and a second clamping arm fixedly connected to the end of the second crossbeam connecting arm extending out of the inner cavity of the frame body, and a stretching mechanism is arranged at the connection between the second clamping arm and the second crossbeam connecting arm and at the connection between the first clamping arm and the first crossbeam connecting arm.

2. A hydraulic rotary horizontal coil clamp according to claim 1, characterized in that The stretching mechanism further comprises third guide rails fixed to the top of the first crossbeam connecting arm and the side wall of the second crossbeam connecting arm, third sliding blocks are arranged in sliding connection on the third guide rails, the stretching mechanism comprises a telescopic rod, one end of the telescopic rod is hingedly connected with the third sliding block, and the other end of the telescopic rod is hingedly connected with the first clamping arm and the second clamping arm. Limiting blocks and blocking blocks are fixedly arranged at both ends of the third guide rail respectively, and the blocking blocks are connected with the third sliding blocks through elastic members.

3. A hydraulic rotary horizontal coil clamp according to claim 2, wherein The first clamping arm and the second clamping arm are arranged in relative parallelism, and the bottom ends of the opposite surfaces are provided with receiving assemblies for receiving materials, and the receiving assemblies comprise receiving blocks.

4. A hydraulic rotary horizontal coil clamp according to claim 3, wherein The top of the first crossbeam connecting arm is provided with an upper recess part capable of accommodating the first plate body extension part, and the bottom of the second crossbeam connecting arm is provided with a lower recess part capable of accommodating the second plate body extension part.

5. A hydraulic rotary horizontal coil clamp according to claim 2, wherein Second sliding blocks in sliding cooperation with the first guide rails are arranged at the top left side and the bottom right side of the inner cavity of the frame body.

6. A hydraulic rotary horizontal coil clamp according to claim 5, wherein A fixing seat for fixing the bidirectional hydraulic cylinder is fixedly arranged in the middle of the inner cavity of the frame body. The top surface of the receiving block is a first arc surface, and an inner support body is fixedly arranged on the inner side. The inner support body comprises a horizontal support plate and a vertical support plate arranged perpendicularly to each other, and the top of the vertical support plate abuts against below the first arc surface. The inner support body comprises a horizontal support plate and a vertical support plate arranged perpendicularly to each other, and the top of the vertical support plate abuts against below the first arc surface.

7. A hydraulic rotary horizontal coil clamp according to claim 2, wherein The first side receiving block and the second side receiving block are respectively hinged on both sides of the receiving block, outer wall surfaces of the first side receiving block and the second side receiving block are second arc surfaces, hydraulic cylinders are hinged on both sides of the receiving block, and the other ends of the hydraulic cylinders are hinged with the first side receiving block and the second side receiving block.

8. A hydraulic rotary horizontal coil clamp according to claim 2, wherein The inner side wall of the first clamping arm and the second clamping arm is provided with a protective pad, the protective pad comprises a base plate, a flexible rubber guard plate is embedded in the inner side of the base plate, a convex part and a concave part are arranged on the outer wall surface of the flexible rubber guard plate from top to bottom, and a plurality of pressing plates capable of being pressed at the concave part are fixedly arranged on the base plate in the transverse direction.

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