Input roller way device for cold shearing of small bars

Abstract

The utility model discloses an input roller way device for cold shearing of small bars, which is provided with a support rack, a plurality of bar conveying limit grooves are transversely arranged on the support rack side by side, three longitudinally arranged roller windows are arranged in the middle of the bar conveying limit grooves, a set of jacking mechanism is arranged below each roller window, and the jacking mechanism is arranged on the support rack. The top of the jacking mechanism is connected with a lifting seat plate, sliding limiting structures are arranged on the two sides of the lifting seat plate, each lifting seat plate is provided with a longitudinally-arranged conveying roller through a bearing seat, and the bearing seats at the two ends of the first conveying roller close to an inlet of the cold shearing machine are each provided with an elastic buffering structure; according to the utility model, the rollers, the bearing seats and the like are manufactured again, and the bearing seats are arranged on the lead screw elevators, so that the height of a single roller way can be freely adjusted, and the normal cold shearing height can still be ensured when the height of the conveying rollers is increased along with the abrasion of the conveying rollers.

Description

Technical Field

[0001] This utility model relates to the field of steel production conveying equipment technology, and in particular to an input roller conveyor device for cold shearing small bars. Background Technology

[0002] In the mold steel bar production workshop, in front of the 1300-ton cold shear machine, three input bar rollers are fixed on separate support brackets. The bearing seats of each roller are fixed and cannot be adjusted. After long-term use, the roller surface will experience significant wear, and the roller surface will decrease, which will affect the height of the steel bar being conveyed to the cold shear machine.

[0003] Meanwhile, the rollers adjacent to the cold shear machine bear the greatest pressure when the cold shear machine is working. Since each roller is rigidly installed and connected, the bearings or bearing seats are very easy to break and be damaged. Therefore, they need to be repaired or replaced every once in a while, which not only affects the efficiency of cold shearing operations, but also increases operating costs and maintenance costs of parts. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned situation by providing an input roller conveyor device for cold shearing small bars. This input roller conveyor device has a novel structural design and can realize the lifting and lowering adjustment of individual rollers to meet the usage requirements after wear.

[0005] The specific solution of this utility model is as follows: an input roller conveyor device for cold shearing small bars, having a support frame, on which several bar conveying limiting grooves are arranged horizontally side by side, and at least three longitudinally arranged roller windows are opened in the middle of the bar conveying limiting grooves, with adjacent roller windows arranged at intervals. A lifting mechanism is set under each roller window, the lifting mechanism is arranged vertically upward, and a lifting seat plate is connected to the top of the lifting mechanism. Sliding limiting structures are set on both sides of the lifting seat plate. A longitudinally arranged conveying roller is installed on each lifting seat plate through bearing seats. Both ends of the roller shaft of each conveying roller are placed on the corresponding lifting seat plate through bearing seats. Under the action of the corresponding lifting mechanism, the conveying roller realizes the lifting action in the roller window. An elastic buffer structure is also set on the bearing seats at both ends of the first conveying roller near the cold shear machine inlet. One end of the roller shaft of each conveying roller is connected to a power motor through a universal coupling. The power motor is installed on the side of the support frame through a motor mount.

[0006] Furthermore, the elastic buffer structure described in this utility model includes two sliding columns and two sets of corresponding disc springs. The lower ends of the two sliding columns are placed on the corresponding lifting base plates, and the upper ends of the sliding columns slide through the corresponding bearing seats. The two sets of disc springs are respectively mounted on the corresponding sliding columns.

[0007] Furthermore, each lifting mechanism in this utility model consists of two screw jacks. The top ends of the lifting screws of the two screw jacks are connected to the bottom of the corresponding lifting seat plate and drive the lifting seat plate to move up and down. The bottom of the screw jacks is fixed to the inner bottom of the support frame.

[0008] Furthermore, the sliding limiting structure described in this utility model includes two limiting slide rails arranged vertically symmetrically on the support frame and limiting slide grooves arranged vertically on the side walls of the lifting seat plate. The limiting slide grooves on the lifting seat plate are engaged with the corresponding limiting slide rails and slide up and down along them.

[0009] Furthermore, the bearing housing described in this utility model is provided with limiting grooves on both side walls, and the limiting grooves slide synchronously along the sliding limiting structure.

[0010] Furthermore, the support frame described in this utility model has a base, on which several steel pipe columns are welded. A platform is welded to the top of the steel pipe columns, a roller window is opened on the platform, and a sliding limiting structure is set on the steel pipe columns.

[0011] Furthermore, the roller window described in this utility model is provided with three motors, and three power motors are provided. The power motor near the cold shear machine inlet and the other two power motors are respectively located on the front and rear sides of the support frame.

[0012] Furthermore, in this invention, protective connecting plates are welded to both ends of the longitudinal direction of each roller window, and the protective connecting plates are placed on the support frame.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model changes the original bracket for independently installed rollers to an integrally welded support frame, which greatly improves the support rigidity of the roller conveyor group.

[0015] 2. In this utility model, the rollers, bearing seats, etc. are remanufactured, and the bearing seats are installed on the screw jack, so that the height of a single roller can be freely adjusted. In this way, as the conveying rollers wear out, raising their height can still ensure their normal cold shearing height.

[0016] 3. The roller bearing housing adjacent to the input side of the cold shear machine is designed with elastic support with disc springs, so that the roller has a certain buffer when under force, thereby avoiding damage to the bearing or bearing housing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure from the main view direction of this utility model;

[0018] Figure 2This is a top view structural diagram of this utility model;

[0019] Figure 3 yes Figure 1 Enlarged schematic diagram of the structure at point K;

[0020] Figure 4 This is a schematic diagram of the utility model in use.

[0021] In the diagram: 1—Bar conveying limiting groove, 2—Protective connecting plate, 3, 6—Bearing seats, 4—Conveying roller, 5—Power motor, 7, 11—Lifting seat plate, 8—Limiting slide rail, 9—Base, 10—Screw jack, 12—Steel pipe column, 13—Tabletop, 14—Roller window, 15—Universal coupling, 16—Motor seat, 17—Sliding column, 18—Disc spring, 19—Cold shear machine, 20—Small steel bar. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] See Figures 1-3This utility model relates to an input roller conveyor device for cold shearing small bars. It has a support frame with several bar conveying limiting grooves 1 arranged horizontally side-by-side on the support frame. At least three longitudinally arranged roller windows 14 are opened in the middle of each bar conveying limiting groove, with adjacent roller windows spaced at a certain distance for mounting conveying rollers. A lifting mechanism is installed below each roller window, arranged vertically upwards. A lifting seat plate 7 or 11 is connected to the top of the lifting mechanism. Sliding limiting structures are provided on both sides of the lifting seat plate. A longitudinally arranged conveying roller 4 is mounted on each lifting seat plate via bearing seats 3 or 6. Both ends of the roller shaft of each conveying roller are mounted on the corresponding lifting seat plate via bearing seats. The lifting mechanism enables the roller window to move up and down. An elastic buffer structure is also provided on the bearing seats at both ends of the first conveying roller near the inlet of the cold shear machine 19. Furthermore, the elastic buffer structure in this invention includes two sliding columns 17 and two sets of corresponding disc springs 18. The lower ends of the two sliding columns are mounted on the corresponding lifting plate, and the upper ends of the sliding columns slide through the corresponding bearing seats. The two sets of disc springs are respectively mounted on the corresponding sliding columns, meaning the bearing seats can slide up and down on the sliding columns. The disc springs are located between the lifting plate and the bearing seats. One end of the roller shaft of each conveying roller is connected to a power motor 5 via a universal coupling 15. The power motor is mounted on the side of the support frame via a motor mount 16. Furthermore, the support frame in this invention has a base 9, on which several steel pipe columns 12 are welded. A platform 13 is welded to the top of each steel pipe column, and the roller window is opened on the platform. A sliding limit structure is provided on the steel pipe columns. Furthermore, the present invention includes three roller windows, each equipped with a power motor. The power motor closest to the cold shear machine inlet and the other two power motors are located on the front and rear sides of the support frame, respectively. Additionally, each roller window has a protective connecting plate 2 welded to its longitudinal ends, and the protective connecting plate is mounted on the support frame.

[0025] Furthermore, in this embodiment, each lifting mechanism consists of two screw jacks 10. The top ends of the lifting screws of the two screw jacks are connected to the bottom of the corresponding lifting seat plate and drive the lifting seat plate to move up and down. The bottom of the screw jack is fixed to the inner bottom of the support frame. The screw jack is driven by a handle cranking mechanism.

[0026] Furthermore, the sliding limiting structure in this embodiment includes two vertically symmetrically arranged limiting slide rails 8 on the support frame and limiting slide grooves vertically arranged on the side walls of the lifting seat plate. The limiting slide grooves on the lifting seat plate are engaged with the corresponding limiting slide rails and slide up and down along them. Limiting slide grooves are provided on the side walls of the bearing seat. The limiting slide grooves slide synchronously along the sliding limiting structure, that is, the bearing seat and the lifting seat plate move up and down together along the limiting slide rails. The limiting slide grooves are provided on the side walls of the bearing seat and the lifting seat plate. Its structure is simple and is not shown in the attached drawings.

[0027] In this invention, the support bracket for the independently supported conveyor roller is replaced with an integrally welded support frame, which greatly increases the support rigidity of the entire roller conveyor assembly.

[0028] This invention replaces the original independently mounted roller bracket with a single welded support frame, significantly improving the support rigidity of the roller conveyor assembly. The rollers and bearing housings are remanufactured, and the bearing housings are mounted on a screw jack, allowing for free adjustment of the height of each individual roller conveyor. This ensures that even with wear and tear on the conveyor rollers, raising their height still guarantees the normal cold shearing height. The roller bearing housing adjacent to the input side of the cold shear machine is designed with elastic supports featuring disc springs, providing cushioning under stress and preventing damage to the bearings or bearing housings.

[0029] For the installation method of this utility model in actual use, please refer to the appendix. Figure 4 As shown, a conveyor roller supported by disc springs is installed near the input port of the cold shear machine. Several small steel bars 20 are placed in the bar conveying limit groove and conveyed forward. The power motor is turned on, and the small steel bars are moved forward into the cold shear machine by the rotation of the conveyor rollers for shearing. At this time, the conveyor roller closest to the cold shear machine bears the greatest pressure. However, due to the buffering effect of the disc springs, this pressure impact has a certain buffering protection effect on the bearing housing and roller. As the usage time goes by, the roller surface of the conveyor roller wears more, and the height of the input to the cold shear machine will decrease. At this time, the position of the conveyor roller can be raised by raising the screw jack to compensate for the unstable input of small steel bars caused by the height difference due to roller wear.

Claims

1. An input roller conveyor device for cold shearing small bars, characterized in that: The device has a support frame with several horizontally arranged bar conveying and limiting grooves. Each bar conveying and limiting groove has at least three longitudinally arranged roller windows, spaced apart from each other. Each roller window has a lifting mechanism positioned vertically upwards. The top of the lifting mechanism is connected to a lifting seat plate, which has sliding limiting structures on both sides. Each lifting seat plate has a longitudinally arranged conveying roller mounted on it via bearing seats. Both ends of the roller shaft of each conveying roller are mounted on the corresponding lifting seat plate via bearing seats. The conveying rollers move up and down within the roller windows under the action of the corresponding lifting mechanisms. The bearing seats at both ends of the first conveying roller near the cold shear machine inlet also have an elastic buffer structure. One end of the roller shaft of each conveying roller is connected to a power motor via a universal coupling, and the power motor is mounted on the side of the support frame via a motor mount.

2. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: The elastic buffer structure includes two sliding columns and two sets of corresponding disc springs. The lower ends of the two sliding columns are placed on the corresponding lifting base plates, and the upper ends of the sliding columns slide through the corresponding bearing seats. The two sets of disc springs are respectively mounted on the corresponding sliding columns.

3. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: Each lifting mechanism consists of two screw jacks. The top ends of the lifting screws of the two screw jacks are connected to the bottom of the corresponding lifting seat plate and drive the lifting seat plate to move up and down. The bottom of the screw jacks is fixed to the inner bottom of the support frame.

4. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: The sliding limiting structure includes two limiting slide rails arranged vertically symmetrically on the support frame and limiting slide grooves set vertically on the side walls of the lifting seat plate. The limiting slide grooves on the lifting seat plate are engaged with the corresponding limiting slide rails and slide up and down along them.

5. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: Limiting grooves are provided on both side walls of the bearing housing, and the limiting grooves slide synchronously along the sliding limiting structure.

6. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: The support frame has a base, on which several steel pipe columns are welded. A platform is welded to the top of each steel pipe column, and a roller window is opened on the platform. A sliding limiting structure is provided on the steel pipe columns.

7. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: The roller window is provided with three motors, and the motors located near the cold shear machine inlet and the other two motors are located on the front and rear sides of the support frame.

8. The input roller conveyor device for cold shearing small bars according to claim 1, characterized in that: Protective connecting plates are welded to both ends of the longitudinal direction of each roller window, and the protective connecting plates are placed on the support frame.

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