Tower-shaped repairing device for steel coil

Abstract

The utility model discloses a tower-shaped repairing device for a steel coil. The tower-shaped repairing device comprises a fixed support, four guide rods, a locking nut, a movable support, a base, a steel coil saddle, a left side pressing assembly and a right side pressing assembly. The bottom of the fixed support is fixed on a foundation, the bottom of the movable support is connected with the base, the base is fixed on the foundation, and the fixed support and the movable support are connected through the upper, lower, front and back guide rods and are fixed through locking nuts; the left side pressing assembly and the right side pressing assembly are connected with the fixed support and the movable support respectively. The steel coil saddle is located in the middle of the guide rod and fixed to the ground, and a steel coil is placed on the steel coil saddle. As a whole, the tower-shaped repairing device for the steel coil has high repairing capacity. Meanwhile, when clamping force is applied, a cylinder rod and a clamping plate of the hydraulic cylinder cannot be damaged, and the cylinder rod cannot be bent, deformed and damaged.

Description

Technical Field

[0001] The utility model relates to a device for repairing when tower shapes appear on both end surfaces of cold and hot steel coils, belonging to the field of machinery. Background Art

[0002] At present, the tower-shaped repair device of the steel coil mainly adopts a clamping type arranged separately on both sides. When the steel coil is between the clamping plates on both sides, the clamping plates on both sides are pushed out by the action of the hydraulic cylinder or the air cylinder until the clamping plates on both sides contact the steel coil. At this time, the rod end of the hydraulic cylinder or the air cylinder continues to extend, and under the action of the hydraulic cylinders or the air cylinders on both sides, the tower protruding from the end face of the steel coil is pressed back, thereby achieving the purpose of repairing the tower shape.

[0003] The tower-shaped repair device of the existing steel coil has the following problems: First, since the tower-shaped repair device is arranged separately on both sides, when the clamping force is applied, the tipping moment of the clamping plate on the bottom plates of the brackets on both sides is large, causing deformation and damage of the brackets or loosening of the foundation under the bottom plate. Therefore, the repair force is generally controlled at about 35 tons, so it is impossible to eliminate the tower shape of thick specifications or cold and strong steel coils, that is, the repair capacity is insufficient; Second, the cylinder rod of the hydraulic cylinder (or the guide rod of the cylinder) and the clamping plate are rigidly connected, and since the tower shape of the steel coil is irregular, when the clamping force is applied, the force of the steel coil tower on the clamping plate is eccentrically loaded, and the eccentrically loaded moment causes the rigid connection between the cylinder rod (guide rod) and the clamping plate to be damaged; Third, when the width of the steel coil to be repaired is small, the cylinder rod (guide rod) extends long and the clamping plate has no guide device, so the clamping plate is in a cantilever state and has poor rigidity, and the clamping force will cause the guide rod or cylinder rod to bend and deform, resulting in damage. Summary of the invention

[0004] The problem to be solved by the utility model is to provide a tower-shaped repair device for a steel coil, which as a whole has a strong repairing ability. At the same time, it will not damage the cylinder rod and the clamping plate of the hydraulic cylinder when applying the clamping force, and will not cause the cylinder rod to bend, deform or be damaged.

[0005] The utility model discloses a tower-shaped repairing device for a steel coil, which comprises a fixed support, four guide rods, a locking nut, a movable support, a base, a steel coil saddle, and two left and right side pressure assemblies; the bottom of the fixed support is fixed on a foundation, the bottom of the movable support is connected to the base, and the base is fixed to the foundation, the fixed support and the movable support are connected through four upper and lower front and rear guide rods and fixed through locking nuts; the left and right side pressure assemblies are respectively connected to the fixed support and the movable support; the steel coil saddle is located in the middle of the guide rods and is fixed on the ground, and the steel coil is placed on the steel coil saddle.

[0006] Furthermore, each side pressure assembly includes a hydraulic cylinder and a clamping plate. The left and right hydraulic cylinders are respectively installed on the fixed support and the movable support. The cylinder rods of the left and right hydraulic cylinders are respectively connected to the clamping plates located on the inner sides of the fixed support and the movable support. The clamping plates are mounted on the outer circles of the four guide rods through four guide holes in the upper, lower, front and rear directions.

[0007] Furthermore, each side pressure assembly also includes a connecting unit, which includes a convex pad, a concave pad, and a pressure cover. The pressure cover is fixed on the surface of the clamping plate opposite to the hydraulic cylinder, and the two form a space. The convex pad and the concave pad are both arranged in the space and form a spherical fit. The convex pad is fixedly connected to the clamping plate through a stopper, and the concave pad is connected to the rod end of the hydraulic cylinder and cooperates with the stopper of the pressure cover.

[0008] Further, the hydraulic cylinder rod end is connected to the convex pad, and the clamping plate is connected to the concave pad.

[0009] Furthermore, the bottom of the movable support is matched with the base through a U-shaped guide groove.

[0010] Furthermore, a slide plate assembly is arranged between the bottom of the movable support and the base, and the slide plate assembly includes an upper slide plate, a side slide plate, and a lower slide plate. The upper and lower side surfaces where the bottom of the movable support and the base are in contact are respectively provided with an upper slide plate, a lower slide plate, and a side slide plate.

[0011] Furthermore, the tower-shaped repair device also includes four disc spring groups, which are located at the lower part of the four bottom surfaces of the steel coil saddle in front, behind, left and right directions. The lower end of the disc spring group is fixed on the ground and the upper end is supported on the steel coil saddle.

[0012] Furthermore, the hydraulic cylinder has a built-in displacement sensor, and a pressure sensor is arranged in the hydraulic circuit on the piston side.

[0013] The advantages of the tower-shaped repair device for steel coils of the utility model are as follows: 1. The fixed support and the movable support are connected together by four guide rods to form a closed structure, so that the clamping force of the repaired steel coil becomes an internal force. In this way, when the clamping force is applied, there is no overturning moment of the clamping plate on the bottom plates of the brackets on both sides, the brackets will not be deformed or damaged, and the foundation under the bottom plate will not loosen, that is, the overall force effect of the device is good, so the tower-shaped repair device can apply a larger clamping force and improve the repair ability; 2. The clamping plate is supported by the guide rods in the full range of operation, avoiding cantilever The state improves its rigidity and will not impose additional bending moment on the cylinder rod to cause the cylinder rod to bend and deform and thus cause damage to the cylinder rod; third, the splint and the hydraulic cylinder form a spherical fit through concave pads and convex pads, which has a self-positioning function to avoid a rigid connection. In this way, when the clamping force is applied, the torque of the eccentric load will not damage the cylinder rod and the splint of the hydraulic cylinder; fourth, when the clamping force is applied, the guide rod elastically stretches under the action of tension. At this time, the movable support moves in the guide groove of the base to avoid transmitting the clamping force to the foundation of the base and damaging the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a tower-shaped repair device for a steel coil according to the utility model;

[0015] Figure 2 It is a front view of the tower-shaped repair device for the steel coil of the utility model;

[0016] Figure 3 It is a top view of the tower-shaped repair device for the steel coil of the utility model;

[0017] Figure 4 For along Figure 2 Sectional view along line AA;

[0018] Figure 5 For along Figure 2 Cross-sectional view along line BB. DETAILED DESCRIPTION

[0019] Example 1

[0020] from Figure 1 , Figure 2 , Figure 3 It can be seen that the tower-shaped repair device for the steel coil of the utility model includes a fixed support 1, four guide rods 3, a locking nut 5, a movable support 6, a base 8, a steel coil saddle 9, and two left and right side pressure components; the bottom of the fixed support 1 is fixed to the foundation, the bottom of the movable support 6 is connected to the base 8, and the base 8 is fixed to the foundation, the fixed support 1 and the movable support 6 are connected through four upper and lower front and rear guide rods 3 and fixed through the locking nut 5; the left and right side pressure components are respectively connected to the fixed support 1 and the movable support 6; the steel coil saddle 9 is located in the middle position of the guide rod 3 and is fixed on the ground, and the steel coil 4 is placed on the steel coil saddle 9.

[0021] The tower-shaped repair device of the steel coil of the utility model is fixed on the foundation through the fixed support 1 and the base 8. The fixed support 1 and the movable support 6 are connected together through four guide rods 3 to form a closed frame, that is, a whole. Therefore, the pressure of the left and right side pressure components on the two ends of the steel coil 4 becomes the internal force in the repair device. In this way, when the clamping force is applied, there is no overturning moment of the clamping plate on the supports on both sides, the supports will not be deformed and damaged, and the foundation below will not loosen. Therefore, the repair force of the tower-shaped repair device can reach about 350 tons, thereby eliminating the tower shape of thick specifications or cold-state strong steel coils, that is, the repair ability is super strong.

[0022] Example 2

[0023] from Figure 1 , Figure 2 , Figure 3It can be seen that the tower-shaped repair device for steel coils of the utility model: each side pressure assembly includes a hydraulic cylinder 7 and a splint 2, the left and right hydraulic cylinders 7 are respectively installed on the fixed support 1 and the movable support 6, the cylinder rods of the left and right hydraulic cylinders 7 are respectively connected to the splints 2 located on the inner sides of the fixed support 1 and the movable support 6, and the splints 2 are sleeved on the outer circles of the four guide rods 3 through four guide holes in the upper and lower front and back directions.

[0024] When the cylinder rod of the hydraulic cylinder 7 is extended, the clamping plate 2 moves along the guide rod 3 until it presses the end face of the steel coil 4, thereby improving the rigidity of the clamping plate 2; in this way, even if the width of the steel coil 4 to be repaired is small, the clamping plate 2 will not appear in a cantilever state, and will not apply additional bending moment to the cylinder rod to cause the cylinder rod to bend and deform, thereby causing damage.

[0025] Example 3

[0026] from Figure 1 , Figure 2 , Figure 3 , Figure 5 It can be seen that the tower-shaped repair device for steel coils of the utility model: each side pressure assembly also includes a connecting unit, the connecting unit includes a convex pad 13, a concave pad 14, and a pressure cover 15, the pressure cover 15 is fixed on the surface of the clamping plate 2 opposite to the hydraulic cylinder 7, and the two form a space, the convex pad 13 and the concave pad 14 are both arranged in the space and form a spherical fit, the convex pad 13 and the clamping plate 2 are fixedly connected by a stopper, the concave pad 14 is connected to the rod end of the hydraulic cylinder 7 and cooperates with the stopper of the pressure cover 15.

[0027] The clamping plate 2 and the hydraulic cylinder 7 form a spherical fit through the concave pad 14 and the convex pad 13, that is, the clamping plate 2 and the hydraulic cylinder 7 have a self-positioning function to avoid a rigid connection, so that when the clamping force is applied, the torque of the eccentric load will not damage the cylinder rod of the hydraulic cylinder 7 and the clamping plate 2. Among them, the rod end of the hydraulic cylinder 7 can also be connected to the convex pad, and the clamping plate 2 can also be connected to the concave pad.

[0028] Example 4

[0029] from Figure 1 , Figure 2 , Figure 3 , Figure 4 It can be seen that in the tower-shaped repairing device for steel coils of the utility model, the bottom of the movable support 6 is matched with the base 8 through a U-shaped guide groove.

[0030] When the clamping force is applied, the guide rod 3 elastically extends under the action of the pulling force, and the movable support 6 slides in the U-shaped guide groove of the base 8, thereby avoiding the clamping force from being transmitted to the foundation of the base 8 and damaging the foundation.

[0031] Example 5

[0032] from Figure 1 , Figure 2 , Figure 3 , Figure 4 It can be seen that the tower-shaped repair device for steel coils of the utility model: a slide plate assembly is arranged between the bottom of the movable support 6 and the base 8, the slide plate assembly includes an upper slide plate 10, a side slide plate 11, and a lower slide plate 12, and the upper and lower side surfaces where the bottom of the movable support 6 and the base 8 are in contact are respectively provided with an upper slide plate 10, a lower slide plate 12, and a side slide plate 11.

[0033] The slide plate assembly reduces the wear of the movable support 6 when it slides along the U-shaped groove of the base 8, thereby extending the service life of the device.

[0034] Example 6

[0035] from Figure 1 , Figure 2 , Figure 3 It can be seen that the tower-shaped repair device of the steel coil of the utility model also includes four disc spring groups 16, which are located at the lower part of the four bottom surfaces of the front, back, left and right of the steel coil saddle 9. The lower end of the disc spring group 16 is fixed on the ground and the upper end is supported on the steel coil saddle 9.

[0036] When the steel coil 4 is placed, the disc spring group 16 below the steel coil saddle 9 can play a buffering role.

[0037] Example 7

[0038] The tower-shaped repairing device for steel coils of the utility model has a displacement sensor built into the hydraulic cylinder 7, and a pressure sensor is arranged in the hydraulic circuit on the piston side.

[0039] The pressure sensor is used to measure the clamping force, and the displacement sensor is used to determine the stroke of the clamping plate, so as to better control the pressure.

[0040] When the tower repair device of the utility model is used on site, there are mainly two methods: fixed pressure repair and fixed stroke repair: 1. Fixed pressure repair is mainly for the repair of thicker steel coils: after the crane lifts the steel coil to be repaired to the steel coil saddle and puts it in place, the hydraulic cylinder rods in the fixed support and the movable support are extended at the same time, and the cylinder rods push the spherical connection assembly and the clamping plate to move toward the end face of the steel coil. When the clamping plate on one side contacts the steel coil, under the action of the hydraulic system, the clamping plate on this side stops moving, and the clamping plate on the other side continues to move forward until this clamping plate also contacts the end face of the steel coil and stops. At this time, the pressure of the hydraulic system increases, and the cylinder rods of the hydraulic cylinders on both sides continue to extend to perform tower repair until the pressure increases to the set pressure (pressure sensor feedback) for pressure maintenance. After the pressure maintenance ends, the system pressure decreases, and the clamping plates on both sides retreat a certain distance (displacement sensor feedback). The effect of the steel coil tower repair is manually checked. If it does not meet the requirements, the set pressure of the tower repair is increased on the operation panel for repair until the tower repair meets the requirements or the tower cannot be further improved. The second is fixed stroke repair, which is mainly used for the repair of thinner steel coils: after the crane lifts the steel coil to be repaired to the steel coil saddle, the steel coil width information is automatically read into the control system or manually input. According to the tower shape requirements of the steel coil, the system automatically determines the extension stroke of the hydraulic cylinder, and the hydraulic cylinder rods in the fixed support and the movable support extend, and the cylinder rods push the spherical connection assembly and the clamping plate to move toward the end face of the steel coil. When the clamping plate on one side contacts the steel coil, the clamping plate on that side stops moving under the action of the hydraulic system, and the clamping plate on the other side continues to move forward until the clamping plate here also contacts the end face of the steel coil and stops. At this time, the pressure of the hydraulic system increases, and the cylinder rods of the hydraulic cylinders on both sides continue to extend to repair the steel coil tower shape until the hydraulic cylinders on both sides reach the set stroke position (displacement sensor feedback). After the steel coil tower shape is finalized, the system pressure decreases, and the clamping plates on both sides return to the initial waiting position (displacement sensor feedback); the repair force of thin steel coils is smaller than that of thick steel coils, and the capacity of the equipment can definitely meet the repair requirements.

[0041] The advantages of the tower-shaped repair device for steel coils of the utility model are as follows: 1. The fixed support and the movable support are connected together by four guide rods to form a closed structure, so that the clamping force of the repaired steel coil becomes an internal force. In this way, when the clamping force is applied, there is no overturning moment of the clamping plate on the bottom plates of the brackets on both sides, the brackets will not be deformed or damaged, and the foundation under the bottom plate will not loosen, that is, the overall force effect of the device is good, so the tower-shaped repair device can apply a larger clamping force and improve the repair ability; 2. The clamping plate is supported by the guide rods in the full range of operation, avoiding cantilever The state improves its rigidity and will not impose additional bending moment on the cylinder rod to cause the cylinder rod to bend and deform and thus cause damage to the cylinder rod; third, the splint and the hydraulic cylinder form a spherical fit through concave pads and convex pads, which has a self-positioning function to avoid a rigid connection. In this way, when the clamping force is applied, the torque of the eccentric load will not damage the cylinder rod and the splint of the hydraulic cylinder; fourth, when the clamping force is applied, the guide rod elastically stretches under the action of tension. At this time, the movable support moves in the guide groove of the base to avoid transmitting the clamping force to the foundation of the base and damaging the foundation.

[0042] In summary, the clamping force of the tower repair device for steel coils of the utility model can reach 350 tons, and the strip thickness can reach 20 mm. Therefore, the tower of thick-gauge or cold-state strong steel coils can be repaired. At the same time, it can also repair steel coils with smaller widths, greatly expanding the scope of steel coil repair.

Claims

1. The tower-shaped repair device for steel coils is characterized by: It comprises a fixed support (1), four guide rods (3), a locking nut (5), a movable support (6), a base (8), a steel coil saddle (9), and two left and right side pressure components; the bottom of the fixed support (1) is fixed on a foundation, the bottom of the movable support (6) is connected to the base (8), and the base (8) is fixed on the foundation; the fixed support (1) and the movable support (6) are connected through four upper and lower front and rear guide rods (3) and fixed through locking nuts (5); the left and right side pressure components are respectively connected to the fixed support (1) and the movable support (6); the steel coil saddle (9) is located in the middle of the guide rod (3) and is fixed on the ground, and the steel coil (4) is placed on the steel coil saddle (9).

2. The tower-shaped repair device according to claim 1 is characterized in that: Each side pressure assembly comprises a hydraulic cylinder (7) and a clamping plate (2). The left and right hydraulic cylinders (7) are respectively mounted on the fixed support (1) and the movable support (6). The cylinder rods of the left and right hydraulic cylinders (7) are respectively connected to the clamping plates (2) located on the inner sides of the fixed support (1) and the movable support (6). The clamping plates (2) are sleeved on the outer circles of the four guide rods (3) through four guide holes in the upper and lower directions and in the front and rear directions.

3. The tower-shaped repair device according to claim 2 is characterized in that: Each side pressure assembly also includes a connection unit, which includes a convex pad (13), a concave pad (14), and a pressure cover (15). The pressure cover (15) is fixed on the surface of the clamping plate (2) opposite to the hydraulic cylinder (7), and the two form a space. The convex pad (13) and the concave pad (14) are both arranged in the space and form a spherical fit. The convex pad (13) is fixedly connected to the clamping plate (2) through a stopper, and the concave pad (14) is connected to the rod end of the hydraulic cylinder (7) and fits with the stopper of the pressure cover (15).

4. The tower-shaped repair device according to claim 3 is characterized in that: The rod end of the hydraulic cylinder (7) is connected to the convex pad, and the clamping plate (2) is connected to the concave pad.

5. The tower-shaped repair device according to claim 1 is characterized in that: The bottom of the movable support (6) is matched with the base (8) via a U-shaped guide groove.

6. The tower-shaped repair device according to claim 1 is characterized in that: A slide plate assembly is arranged between the bottom of the movable support (6) and the base (8), and the slide plate assembly comprises an upper slide plate (10), a side slide plate (11), and a lower slide plate (12). The upper and lower side surfaces where the bottom of the movable support (6) and the base (8) are in contact are respectively provided with an upper slide plate (10), a lower slide plate (12), and a side slide plate (11).

7. The tower-shaped repair device according to claim 1 is characterized in that: The tower-shaped repair device also includes four disc spring groups (16), which are located at the lower part of the four bottom surfaces of the steel coil saddle (9) in front, back, left and right directions. The lower end of the disc spring group (16) is fixed on the ground, and the upper end is supported on the steel coil saddle (9).

8. The tower-shaped repair device according to claim 1 is characterized in that: The hydraulic cylinder (7) has a built-in displacement sensor, and a pressure sensor is arranged in the hydraulic circuit on the piston side.

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