A hoisting structure for rounding a large-diameter cylinder plate

Abstract

The present invention relates to a hoisting structure for rounding of large-diameter cylinder plate rolling. The hoisting structure includes a connecting pipe, both ends of the connecting pipe are provided with a lifting lug plate for hoisting the connecting pipe, the lifting lug plate is provided with a lifting lug hole for a lifting rope to pass through, and the top of the connecting pipe is provided with at least one set of rolling members along its length direction; the rolling member includes two parallel connecting plates, a pin shaft perpendicular to the connecting plates is provided between the two connecting plates, and a roller is provided on the pin shaft for contacting and rotating with the rolling plate and being concentric with the pin shaft for supporting the rolling plate; the present invention utilizes the contact between the roller and the top of the inner wall of the cylinder during the rolling process of the plate rolling machine, not only to form an effective support for the top of the cylinder, but also to ensure that the steel plate can move freely under the contact of the roller without forming any resistance during the rolling process, effectively solving the problem of the cylinder waist sinking due to the dead weight of the large-diameter cylinder, and effectively ensuring the rolling forming quality of the steel plate.

Description

Technical Field

[0001] The invention belongs to the technical field of plate rolling and rounding, and particularly relates to a hoisting structure for large-diameter cylinder plate rolling and rounding. Background Art

[0002] The upper roller of the plate rolling machine is located symmetrically between the two lower rollers. The hydraulic oil in the hydraulic cylinder acts on the piston to move it vertically. The final gear of the main reducer drives the gears of the two lower rollers to mesh and rotate, providing torque for the rolled plate. The flat, plastic metal plate of the plate rolling machine passes between the three working rollers (two lower rollers and one upper roller). With the downward pressure of the upper roller and the rotation of the lower roller, the metal plate undergoes multiple continuous bends, producing permanent plastic deformation.

[0003] During the overall rounding process of the cylinder after the long steel plate is rolled, the large-diameter cylinder is often prone to overall waist collapse due to its own excessive gravity, thus affecting the rolling quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a hoisting structure for large-diameter cylinder plate rolling and rounding in order to solve the problems raised in the above background technology.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A lifting structure for large-diameter cylinder plate rolling and rounding, comprising a connecting pipe, with lug plates for lifting the connecting pipe provided at both ends, the lug plates being provided with lug holes for passing a lifting rope, and at least one set of rolling elements being provided at the top of the connecting pipe along its length.

[0007] The rolling element includes two parallel connecting plates, a pin shaft perpendicular to the connecting plates is provided between the two connecting plates, and a roller is provided on the pin shaft, which contacts and rotates with the rolling plate and is concentric with the pin shaft for supporting the rolling plate.

[0008] Preferably, a mounting plate is provided on the side where the two ear plates are away from each other, and a mounting groove is provided on the side where the two mounting plates are close to each other, a movable slider is provided in the mounting groove, a roller is provided between the two sliders, a No. 2 spring is provided between the slider and the mounting plate to drive the slider to reset, a No. 1 telescopic rod is provided at the mounting groove and located below the slider, a No. 2 telescopic rod is provided on the mounting plate, a pipe for hydraulic oil to pass through is provided between the No. 2 telescopic rod and the No. 1 telescopic rod, a marking pen that can leave marks on the rolling plate is provided on the No. 2 telescopic rod, and the rolling plate contacts the roller during rotation, and the contact part of the rolling plate and the roller rotates to the marking pen during continuous rotation, and when the rolling plate squeezes the roller to cause it to displace, it simultaneously squeezes the No. 1 telescopic rod, so that the gas in the No. 1 telescopic rod enters the No. 2 telescopic rod, causing the No. 2 telescopic rod to extend, and the marking pen contacts the rolling plate under the drive of the No. 2 telescopic rod and leaves a mark on the rolling plate.

[0009] Preferably, the mounting groove is provided with a fourth telescopic rod located above the sliding block for supplying hydraulic oil to the second telescopic rod.

[0010] Preferably, the marking pen is one of chalk, crayon or talc.

[0011] Preferably, a No. 3 telescopic rod is provided inside the No. 2 telescopic rod, a No. 3 spring is provided inside the No. 3 telescopic rod, the No. 3 telescopic rod fits with the marking pen and is used to protect the marking pen, and a No. 4 spring is provided between the marking pen and the No. 2 telescopic rod to squeeze the marking pen outward.

[0012] Preferably, the marking pen is a circular ring structure, and the No. 3 telescopic rod is located inside the marking pen.

[0013] Preferably, the lug plate is provided with a rag for erasing marks on the roll plate.

[0014] The beneficial effects of the present invention are:

[0015] The present invention utilizes the contact between the roller and the top of the inner wall of the cylinder during the rolling process of the plate rolling machine, which not only provides effective support for the top of the cylinder, but also ensures that the steel plate can move freely under the contact of the roller without forming any resistance during the rolling process, effectively solving the problem of the cylinder sagging due to the deadweight of the large-diameter cylinder, and effectively ensuring the rolling and forming quality of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 is a top view of the present invention;

[0018] Figure 3 It is a schematic diagram of the positional relationship between the slider and the mounting plate in the present invention;

[0019] Figure 4 This is a schematic diagram of the positional relationship between the second telescopic rod and the mounting plate in the present invention;

[0020] Figure 5 This is a schematic diagram of the positional relationship between the marking pen and the No. 3 telescopic rod in the present invention;

[0021] Figure 6 It is a schematic diagram of the working state of the present invention.

[0022] In the figure: 1. Connecting tube; 2. Lifting ear plate; 3. Lifting ear hole; 4. Connecting plate; 5. Roller; 6. Mounting plate; 7. Mounting slot; 8. Slider; 9. Roller; 10. Spring No. 2; 11. Telescopic rod No. 1; 12. Telescopic rod No. 2; 13. Marking pen; 16. Telescopic rod No. 3; 17. Spring No. 4; 18. Cleaning cloth; 19. Telescopic rod No. 4. DETAILED DESCRIPTION

[0023] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1

[0025] like Figure 1-6 As shown, a hoisting structure for large-diameter cylinder plate rolling and rounding includes a connecting pipe 1, with lug plates 2 at both ends of the connecting pipe 1 for hoisting the connecting pipe 1, and the lug plates 2 are provided with lug holes 3 for the lifting rope to pass through. The top of the connecting pipe 1 is provided with at least one set of rolling elements along its length.

[0026] The rolling element includes two parallel connecting plates 4, a pin shaft perpendicular to the connecting plates 4 is provided between the two connecting plates 4, and a roller 5 is provided on the pin shaft, which contacts and rotates with the rolling plate and is concentric with the pin shaft for supporting the rolling plate.

[0027] In the above embodiment, a lifting rope is passed through the lifting lug hole 3 and then hoisted by a crane, thereby lifting the lifting lug plate 2. Simultaneously, the connecting pipe 1 and the rolling element are lifted synchronously. During the lifting process, the roller 5 in the rolling element contacts the inner side wall of the cylinder, thereby effectively supporting the top of the cylinder. The support provided by the roller 5 on the top of the cylinder effectively solves the problem of the cylinder sagging due to its own weight in large-diameter cylinders, effectively ensuring the quality of the steel plate rolling. Furthermore, the roller 5 exerts minimal resistance during contact with the cylinder, ensuring that the normal rotation of the cylinder is not affected.

[0028] As a further solution of the present invention, the two lug plates 2 are provided with a mounting plate 6 on the side away from each other, and the two mounting plates 6 are provided with a mounting groove 7 on the side close to each other. A movable slider 8 is provided in the mounting groove 7, and a roller 9 is provided between the two sliders 8. A second spring 10 for driving the slider 8 to reset is provided between the slider 8 and the mounting plate 6. A first telescopic rod 11 is provided at the mounting groove 7 and is located below the slider 8. A second telescopic rod 12 is provided on the mounting plate 6, and a second telescopic rod 12 is provided between the second telescopic rod 12 and the first telescopic rod 11. A pipeline is provided for the passage of hydraulic oil. A marking pen 13 is provided on the No. 2 telescopic rod 12, which can leave marks on the rolling plate. The rolling plate contacts the roller 5 during rotation, and the contact part of the rolling plate and the roller 5 rotates to the marking pen 13 during continuous rotation. When the rolling plate squeezes the roller 9 to cause it to displace, the No. 1 telescopic rod 11 is squeezed synchronously, so that the hydraulic oil in the No. 1 telescopic rod 11 enters the No. 2 telescopic rod 12, causing the No. 2 telescopic rod 12 to extend. The marking pen 13 is driven by the No. 2 telescopic rod 12 to contact the rolling plate and leave a mark on the rolling plate.

[0029] In the above-described embodiment, the cylinder may become partially out of round at the beginning of rolling, or even during the complete rolling process. These minor deviations are difficult to detect visually, thus affecting the efficiency and effectiveness of the rolling process. The roller 9 is provided to ensure that it always maintains contact with the inner wall of the cylinder, and the second spring 10 maintains tension on the roller 9. When the diameter of the cylinder is less than the set diameter, it squeezes the roller 9, causing it to deflect downward, at which point the first spring is subjected to tension. As the roller 9 rotates, it squeezes the first telescopic rod 11 downward, causing the hydraulic oil in the first telescopic rod 11 to flow into the second telescopic rod 12, thereby extending the second telescopic rod 12. The extension of the second telescopic rod 12 drives the marking pen 13 upward, leaving a mark on the inner wall of the cylinder. The mark on the cylinder can be used to determine whether the cylinder has been fully rolled and which part has not been completed.

[0030] As a further solution of the present invention, a fourth telescopic rod 19 is provided at the mounting groove 7 and is located above the slider 8 for supplying hydraulic oil to the second telescopic rod 12 .

[0031] In the above embodiment, the cylinder not only sags inward but also bulges outward. When the cylinder bulges outward, the roller 9, driven by the second spring 10, moves upward, squeezing the fourth telescopic rod 19. This forces the hydraulic oil within the fourth telescopic rod 19 into the second telescopic rod 12, causing it to extend. The extension of the second telescopic rod 12 drives the marking pen 13 upward, leaving a mark on the inner wall of the cylinder, indicating that the marked portion is not fully curled.

[0032] As a further solution of the present invention, the marking pen 13 is one of chalk, crayon or talc.

[0033] As a further solution of the present invention, the lug plate 2 is provided with a wiping cloth 18 for erasing marks on the roll plate.

[0034] As a further solution of the present invention, a No. 3 telescopic rod 16 is provided inside the No. 2 telescopic rod 12, and a No. 3 spring is provided inside the No. 3 telescopic rod 16. The No. 3 telescopic rod 16 is in contact with the marking pen 13 and is used to protect the marking pen 13. A No. 4 spring 17 is provided between the marking pen 13 and the No. 2 telescopic rod 12 to squeeze the marking pen 13 outward.

[0035] In the above embodiment, when the marking pen 13 is a chalk, a crayon, or a talc pen, it contacts the surface of the cylinder and is easily broken when marking on the cylinder surface, thereby affecting the service life of the marking pen 13. By providing a No. 3 telescopic rod 16, the No. 3 telescopic rod 16 automatically extends and stops extending when it encounters the cylinder. The extended No. 3 telescopic rod 16 can adhere to the side wall of the marking pen 13, so that the marking pen 13 will not easily break during the marking process. The No. 4 spring 17 is compressed under the action of the marking pen 13's own weight. As the marking pen 13 is consumed, the squeezing force of the No. 4 spring 17 on the marking pen 13 causes the marking pen 13 to move upward, so that the marking pen 13 is always in a state where it can mark.

[0036] Among them, chalk is the best marking pen 13. The mark formed by chalk on the cylinder can be easily erased. The cylinder surface is kept clean by cleaning the cylinder with a rag 18, avoiding interference to the staff caused by repeated marking.

[0037] As a further solution of the present invention, the marking pen 13 is a circular ring structure, and the No. 3 telescopic rod 16 is located inside the marking pen 13 .

[0038] In the above embodiment, the marking pen 13 is a circular ring, and the third telescopic rod 16 is enclosed by the marking pen 13. The third telescopic rod 16 protects the marking pen 13 while marking. Furthermore, the third telescopic rod 16 provides significant friction with the marking pen 13, preventing the marking pen 13 from moving upward too far and coming into direct contact with the inner wall of the barrel, potentially causing an error in the marking.

[0039] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A hoisting structure for large diameter cylinder plate rolling and rounding, characterized by: The invention comprises a connecting pipe (1), wherein both ends of the connecting pipe (1) are provided with lifting lug plates (2) for lifting the connecting pipe (1), the lifting lug plates (2) are provided with lifting lug holes (3) for passing a lifting rope, and the top of the connecting pipe (1) is provided with at least one set of rolling elements along its length direction; The rolling element comprises two parallel connecting plates (4), a pin shaft perpendicular to the connecting plates (4) is provided between the two connecting plates (4), and a roller (5) is provided on the pin shaft, which contacts and rotates with the rolling plate and is concentric with the pin shaft for supporting the rolling plate; The two lug plates (2) are provided with a mounting plate (6) on the side away from each other, and the two mounting plates (6) are provided with a mounting groove (7) on the side close to each other. A movable slider (8) is provided in the mounting groove (7), and a roller (9) is provided between the two sliders (8). A second spring (10) for driving the slider (8) to reset is provided between the slider (8) and the mounting plate (6). A first telescopic rod (11) located below the slider (8) is provided at the mounting groove (7), and a second telescopic rod (12) is provided on the mounting plate (6). The second telescopic rod (12) and the first telescopic rod (11) are connected to each other. A pipeline for passing hydraulic oil is provided between the two telescopic rods (12), and a marking pen (13) is provided on the second telescopic rod (12) for leaving a mark on the roll plate. The roll plate contacts the roller (5) during the rotation process, and the contact portion of the roll plate and the roller (5) rotates to the marking pen (13) during the continuous rotation process. When the roll plate squeezes the roller (9) to cause it to displace, the first telescopic rod (11) is squeezed synchronously, so that the gas in the first telescopic rod (11) enters the second telescopic rod (12) so that the second telescopic rod (12) is extended. The marking pen (13) contacts the roll plate under the drive of the second telescopic rod (12) and leaves a mark on the roll plate.

2. A hoisting structure for large-diameter cylinder plate rolling and rounding according to claim 1, characterized in that: The mounting groove (7) is provided with a fourth telescopic rod (19) located above the slider (8) and used for delivering hydraulic oil to the second telescopic rod (12).

3. The hoisting structure for large-diameter cylinder plate rolling and rounding according to claim 2 is characterized in that: The marking pen (13) is one of chalk, crayon or talc.

4. The hoisting structure for large-diameter cylinder plate rolling and rounding according to claim 3 is characterized in that: A No. 3 telescopic rod (16) is provided inside the No. 2 telescopic rod (12), and a No. 3 spring is provided inside the No. 3 telescopic rod (16). The No. 3 telescopic rod (16) is fitted with the marking pen (13) and is used to protect the marking pen (13). A No. 4 spring (17) is provided between the marking pen (13) and the No. 2 telescopic rod (12) for pressing the marking pen (13) outward.

5. The hoisting structure for large-diameter cylinder plate rolling and rounding according to claim 4 is characterized in that: The marking pen (13) is a circular ring structure, and the No. 3 telescopic rod (16) is located inside the marking pen (13).

6. The hoisting structure for large-diameter cylinder plate rolling and rounding according to claim 5 is characterized in that: The lug plate (2) is provided with a wiping cloth (18) for erasing marks on the roll plate.

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