CN209773121U - Lower support lifting base of stretch bending straightener - Google Patents

Abstract

The utility model relates to a stretch bending straightener under bracing lift base, including the lift base platform, install lead screw climbing mechanism on the lift base platform, be connected through hydraulic pressure elevating system between lift base platform and the straightener frame. The lower supporting lifting base is used for lifting a straightening roller assembly of a straightening machine, the lifting precision can be ensured by the screw jacking mechanism, the lifting base platform is designed into a floating structure, the lifting base platform is supported by the hydraulic lifting mechanism, the lifting base platform is lifted by the hydraulic lifting mechanism, the hydraulic lifting mechanism cannot generate rigid collision when being lifted, the hydraulic lifting mechanism can lift the lifting base platform to a set limit position before straightening, the screw jacking mechanism is used for bending a straightening roller close to a plate strip, and the plate strip is bent by a reasonable bending envelope angle.

Description

Lower support lifting base of stretch bending straightener

Technical Field

The utility model belongs to the straightening machine field especially relates to a stretch bending straightening machine under bracing lift base.

Background

The strip shape problem of the strip comprises two aspects of the transverse thickness difference of the strip, the flatness of the strip and the like, and the problem is caused by the existence of the participating stress in the strip in essence. Therefore, the strip steel needs to be straightened so that the shape of the strip steel meets the use requirement.

A leveler is a device that straightens a metal material, and presses the metal material or the like by a straightening roll to change the straightness thereof. The leveler is classified into a roll leveler and a tension leveler. However, for plate defects with a thickness of less than 2mm, it is difficult for the roll leveler to level the strip, and particularly, for strip with a thickness of less than 0.5mm, it is almost impossible to level the strip on the roll leveler. And the buckling of the tension straightening machine cannot be leveled.

A Continuous Stretch Bending leveler (Stretch Bending leveler), referred to as a Stretch Bending leveler for short, is a thin strip leveler which adopts small-diameter Bending rollers to simultaneously generate stretching and Bending deformation during the processes of stretching, Bending and straightening strips.

The stretch bending straightener flattens the strip according to the elastic-plastic extension theory of the material. The basic principle is that the strip to be leveled continuously passes through a plurality of groups of small-diameter bending rollers which are alternately arranged up and down under the action of tension applied by the tension roller group, and plastic longitudinal extension is generated along the length direction under the combined action of stretching and bending, so that the length of each longitudinal fiber of the strip tends to be consistent, the nonuniformity of the distribution of the longitudinal internal stress in the strip is reduced, and the flatness of the strip is improved. The stretch bending straightener consists of a roller straightener and a tension straightener, so that the advantages of the roller straightener and the tension straightener are well combined, large plastic deformation can be realized under the condition that the tensile stress level is far lower than the yield limit of a material, the flatness of a thin plate is improved, meanwhile, the improvement of the anisotropy of the material is facilitated, the yield platform is avoided, the formation of a sliding line is prevented, and the possibility is provided for the continuous straightening of wide-range strip steel coiling.

However, the existing straightening roller is lifted in a screw lifting mode, the screw lifting mode belongs to rigid transmission, and the straightening roller is easy to collide in the lifting process, so that the straightening roller is bent, and the straightening is influenced.

Disclosure of Invention

The utility model provides a stretch bending straightener under bracing lift base adopts the lead screw jacking to ensure the lift accuracy control, combines hydraulic pressure lift to ensure the flexonics again, avoids the flattening roller rigidity collision, ensures the aligning precision.

The utility model discloses a concrete technical scheme does: the utility model provides a stretch bending straightener under bracing lift base, includes the lift base platform, installs lead screw climbing mechanism on the lift base platform, is connected through hydraulic pressure elevating system between lift base platform and the straightener frame.

The lower supporting lifting base is used for lifting a straightening roller assembly of a straightening machine, the lifting precision can be ensured by the screw jacking mechanism, the screw jacking mechanism is in rigid transmission, the vertical floating is small, the error is small, but the screw jacking mechanism is completely adopted, rigid impact can easily occur when an upper straightening roller and a lower straightening roller are touched, the straightening roller is influenced, therefore, the lifting base table is designed into a floating structure and is supported by the hydraulic lifting mechanism, the lifting base table is lifted by the hydraulic lifting mechanism, the hydraulic lifting mechanism cannot generate rigid impact when lifting in a hydraulic mode, the hydraulic lifting mechanism can lift the lifting base table to a set limit position before straightening work, the straightening roller is close to the lifting roller by the screw jacking mechanism to bend the plate belt, and the straightening roller is bent by a reasonable bending envelope angle of the plate belt.

Further preferably, the length of the lifting base platform is equal to the width of the rack, lifting windows are arranged on two sides of the rack, and two ends of the lifting base platform are located in the lifting windows. The lifting windows are arranged on two sides of the rack, the end part of the lifting base table is positioned in the lifting windows, and the upper edge of the window can be used as the lifting limiting position of the lifting base table, so that the lifting of the hydraulic lifting mechanism can be limited.

Further preferably, the lifting base platform comprises a plurality of square beams and a connecting plate connected to the end parts of the square beams, the connecting plate is perpendicular to the square beams, the thickness of the connecting plate is equal to that of the side plate of the frame, and the screw jacking mechanism is fixed on the square beams. The lifting base platform is formed by welding square beams and connecting plates, each square beam supports the screw jacking mechanism independently, and deformation is small.

Further preferably, square roof beam is three, and three square roof beams are parallel to each other, fixes two lead screw climbing mechanisms on each square roof beam, links to each other through the transmission shaft between the two lead screw climbing mechanisms on same square roof beam and forms synchronization, the end connection servo motor of transmission shaft, servo motor drive transmission shaft rotates. A servo motor drives two screw rod jacking mechanisms, and the two screw rod jacking mechanisms lift one straightening roller assembly together.

Further preferably, the upper side of connecting plate is higher than square roof beam upper surface, and servo motor installation is fixed in on the connecting plate.

Further preferably, a through hole is formed in the square beam, and the lower end of a lead screw of the lead screw jacking mechanism penetrates into the square beam from the through hole. The through hole enables the lower end of the lead screw to penetrate into the square beam, and the length of the lead screw can be lengthened.

Further preferably, hydraulic lifting mechanism sets up in the outside of lift base platform, and hydraulic lifting mechanism adopts six pneumatic cylinders, and the equipartition is in the both ends position of lift base platform.

Further preferably, the outside limit of lift base platform is provided with the connection support, connects the support totally six, and the both ends of lift base platform are respectively fixed three, and the upper end of pneumatic cylinder is connected with the connection support.

Further preferably, the connecting support comprises a main board horizontally fixed at the end part of the lifting base platform, and a vertical reinforcing plate is connected between the upper surface of the main board and the end surface of the lifting base platform.

The utility model has the advantages that: the lower supporting lifting base is used for lifting a straightening roller assembly of a straightening machine, the lifting precision can be ensured by the screw jacking mechanism, the screw jacking mechanism is in rigid transmission, the vertical floating is small, the error is small, but the screw jacking mechanism is completely adopted, rigid impact can easily occur when an upper straightening roller and a lower straightening roller are touched, the straightening roller is influenced, therefore, the lifting base table is designed into a floating structure and is supported by the hydraulic lifting mechanism, the lifting base table is lifted by the hydraulic lifting mechanism, the hydraulic lifting mechanism cannot generate rigid impact when lifting in a hydraulic mode, the hydraulic lifting mechanism can lift the lifting base table to a set limit position before straightening work, the straightening roller is close to the lifting roller by the screw jacking mechanism to bend the plate belt, and the straightening roller is bent by a reasonable bending envelope angle of the plate belt.

Drawings

FIG. 1 is a schematic structural view of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is a schematic layout of a hydraulic lifting mechanism of the present invention;

In the figure: 1. frame, 2, spacing portion, 3, lift window, 4, connecting plate, 5, lead screw climbing mechanism, 6, transmission shaft, 7, servo motor, 8, flange, 9, lift base platform, 10, fixed plate, 11, pneumatic cylinder, 12, connecting support, 13, reinforcing plate, 14, mainboard, 15, limiting plate, 16, locking ware.

Detailed Description

The invention will be further described with reference to specific embodiments and with reference to the accompanying drawings.

Example (b):

As shown in figure 1, figure 2 and figure 3, the lower supporting lifting base of the stretch bending straightener comprises a lifting base table 9, a screw jacking mechanism 5 is installed on the lifting base table, and the lifting base table is connected with a straightener frame 1 through a hydraulic lifting mechanism.

the both sides of frame are provided with lift window 3, and the upper edge of lift window is lift spacing portion 2 of lift base platform, and the length of lift base platform equals with the width of frame, and the both ends of lift base platform are in the lift window. The lifting base platform comprises a plurality of square beams and a connecting plate 4 connected to the end part of each square beam, the connecting plate is perpendicular to the square beams, the thickness of the connecting plate is equal to that of the side plate of the frame, and the upper side of the connecting plate is higher than the upper surface of the square beams. The screw jacking mechanism is fixed on the square beam. The square beam is of a square beam type structure with a cross section formed by welding four steel plates, a through hole is formed in the square beam, and the lower end of a lead screw of the lead screw jacking mechanism penetrates into the square beam from the through hole. The square roof beam is three, and three square roof beams are parallel to each other, and two lead screw climbing mechanisms are fixed on each square roof beam, and it is synchronous to link to each other through the transmission shaft between the two lead screw climbing mechanisms on same square roof beam, the end connection servo motor 7 of transmission shaft, and servo motor drive transmission shaft rotates, is connected through flange 8 between transmission shaft and the lead screw climbing mechanism, and the servo motor installation is fixed in on the connecting plate.

The outside limit of lift bed platform is provided with connects support 12, connects the support totally six, and the both ends of lift bed platform are respectively fixed three, connects the support and includes that the level is fixed at the mainboard 14 of lift bed platform tip, is connected vertical reinforcing plate 13 between mainboard upper surface and the lift bed platform terminal surface, and the mainboard is square structure, and the reinforcing plate is the triangle-shaped structure. The hydraulic lifting mechanism is arranged on the outer side of the lifting base platform, the hydraulic lifting mechanism adopts six hydraulic cylinders 11 which are uniformly distributed at the positions of two ends of the lifting base platform, and three hydraulic cylinders are respectively arranged at two ends of the lifting base platform. The bottom of frame is provided with horizontally fixed plate 10, and the upper end of pneumatic cylinder is connected with the connection support, and the lower extreme of pneumatic cylinder is connected with the fixed plate.

The both sides of connecting plate are fixed with limiting plate 15, and outside the side of connecting plate was stretched out to the side of limiting plate, the side of lift window was fixed with locking ware 16, and in the side of limiting plate stretched into the locking ware, locking ware locking limiting plate to carry on spacingly to the axial position of lift base platform.

And the frame is also provided with a limiting valve, the limiting valve is connected into a loop of the hydraulic lifting mechanism, and the lifting position of the lifting base table is limited through the limiting valve.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.

Claims (9)

1. The lower support lifting base of the stretch bending straightener is characterized by comprising a lifting base table, wherein a screw jacking mechanism is installed on the lifting base table, and the lifting base table is connected with a straightener frame through a hydraulic lifting mechanism.

2. The lower support lifting base of a stretch bending straightener as claimed in claim 1, wherein the length of the lifting base platform is equal to the width of the frame, lifting windows are provided on both sides of the frame, and both ends of the lifting base platform are located in the lifting windows.

3. the lower support lifting base of the stretch bending straightener as claimed in claim 1 or 2, wherein the lifting base platform comprises a plurality of square beams and connecting plates connected to the ends of the square beams, the connecting plates are perpendicular to the square beams, the thickness of the connecting plates is equal to that of the side plates of the frame, and the screw rod jacking mechanism is fixed on the square beams.

4. The lower supporting lifting base of the stretch bending straightener as claimed in claim 3, wherein the number of the square beams is three, the three square beams are parallel to each other, two lead screw jacking mechanisms are fixed on each square beam, the two lead screw jacking mechanisms on the same square beam are connected through a transmission shaft to form synchronization, the end of the transmission shaft is connected with a servo motor, and the servo motor drives the transmission shaft to rotate.

5. The lower support lifting base of the stretch bending straightener as claimed in claim 4, wherein the upper side of the connecting plate is higher than the upper surface of the square beam, and the servo motor is installed and fixed on the connecting plate.

6. The lower supporting lifting base of the stretch bending straightener as claimed in claim 3, wherein a through hole is formed in the square beam, and the lower end of a lead screw of the lead screw jacking mechanism penetrates into the square beam from the through hole.

7. The lower support lifting base of the stretch bending straightener as claimed in claim 1 or 2, wherein the hydraulic lifting mechanism is arranged outside the lifting base platform, and the hydraulic lifting mechanism adopts six hydraulic cylinders which are uniformly distributed at two ends of the lifting base platform.

8. The lower support lifting base of the stretch bending straightener as claimed in claim 7, wherein six connecting supports are provided on the outer side of the lifting base table, three connecting supports are fixed on each end of the lifting base table, and the upper end of the hydraulic cylinder is connected to the connecting supports.

9. the lower support lifting base of a stretch bending straightener as claimed in claim 8, wherein the connecting support comprises a main plate horizontally fixed at the end of the lifting base table, and a vertical reinforcing plate is connected between the upper surface of the main plate and the end surface of the lifting base table.