Graphite steel roller for blooming mill stand

Abstract

The utility model provides a graphite steel roller for a blooming mill frame, which relates to the technical field of graphite steel rollers and comprises a roller sleeve, the roller sleeve comprises an outer roller layer and an inner roller layer, the outer roller layer is mounted on the periphery of the inner roller layer, a roller shaft is sleeved in the inner roller layer, a mounting component is arranged in the roller shaft, and the mounting component is mounted on the inner roller layer. The roller sleeve and the roller shaft are connected through a mounting assembly, and mounting blocks are arranged at the two ends of the roller shaft. The device solves the problem that the conventional graphite steel roller can only be integrally replaced after being scrapped due to surface abrasion after being used for a long time, so that great waste is caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite steel rollers, and more specifically, particularly relates to a graphite steel roller used for a primary rolling stand. Background Art

[0002] Rollers are the main working parts and tools on the rolling mill that cause continuous plastic deformation of metal. Rollers are mainly composed of three parts: roll body, roll neck and shaft head. The roll body is the middle part of the roll that actually participates in rolling metal. It has a smooth cylindrical or grooved surface. The roll neck is installed in the bearing and transmits the rolling force to the frame through the bearing seat and the pressing device. The drive end shaft head is connected to the gear seat through the connecting shaft to transmit the rotational torque of the motor to the roll. Rolls can be arranged in the form of two rolls, three rolls, four rolls or multiple rolls in the rolling mill frame. The graphite steel material can improve thermal conductivity and reduce thermal stress because of the graphite in the structure. The application in the roll can greatly reduce the formation and expansion of thermal cracks in the roll during use, improve the wear resistance and bite ability of the roll, and extend the service life of the roll. In addition, the hardness of the roll of this material changes little from the surface to the core, and a deeper hole can be processed, so that the groove bottom and the side wall have the same wear resistance. Graphite steel can also be used as a self-lubricating bearing material.

[0003] Based on the above, the inventors have discovered the following problems: after long-term use, the surface of the current graphite steel rollers will inevitably wear out or even become scrapped, and the traditional manufacturing and matching methods usually make it inconvenient to replace the roller surface, so the entire roller can only be discarded, resulting in a huge waste of resources.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a graphite steel roller for a primary rolling stand is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a graphite steel roller for a primary rolling stand, so as to solve the problem that the existing graphite steel roller can only be replaced as a whole after being scrapped due to wear on its surface after long-term use, causing great waste.

[0006] The purpose and effect of the graphite steel roller for the initial rolling stand of the utility model are achieved by the following specific technical means:

[0007] A graphite steel rolling roller for a primary rolling stand comprises a roller sleeve, wherein the roller sleeve comprises an outer roller layer and an inner roller layer, wherein the outer roller layer is mounted on the periphery of the inner roller layer, a roller shaft is sleeved inside the inner roller layer, a mounting assembly is arranged inside the roller shaft, and the roller sleeve and the roller shaft are connected via the mounting assembly, and mounting blocks are arranged at both ends of the roller shaft.

[0008] Furthermore, the outer roller layer is made of graphite steel.

[0009] Furthermore, the mounting assembly includes a chamber opened inside the roller shaft, an adjusting column is provided inside the chamber, a screw is provided on the top of the adjusting column, and a disc is provided in the chamber, a plurality of through grooves are evenly provided on the surface of the disc, a slider is provided in the through groove, and a block is provided on one side of the slider.

[0010] Furthermore, the other side of the sliding block is connected to a movable rod via a hinge seat, and the other end of the movable rod is connected to an adjusting column via a hinge seat.

[0011] Furthermore, the disc is fixedly connected to the inner wall of the chamber, and a circular hole is provided at the axis of the disc, and the adjusting column is installed through the circular hole.

[0012] Furthermore, the inner wall of the chamber is provided with a plurality of through holes, and the inner wall of the inner roller layer is provided with a plurality of mounting holes, and the mounting holes, the through holes and the clamping blocks match each other.

[0013] Furthermore, a cross groove is provided at the top of the screw rod, a cross rod is engaged in the cross groove, and a rotating disk is provided at the top of the cross rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] Through the cooperation among the screw, adjusting column, disc, movable rod, through groove and slider, the cross rod is inserted into the cross groove at the top of the screw, and then the turntable is rotated to make the screw move downward, drive the adjusting column to move, drive the movable rod to push the slider to move in the through groove, so that the block moves toward the circumferential side, and the block is installed inside the mounting hole through the through hole, so as to achieve the effect of quick installation of the roller sleeve, thereby avoiding the problem that the surface of the graphite steel roller is worn out after long-term use and can only be replaced as a whole after being scrapped, which causes great waste, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional schematic diagram of a graphite steel roller used for a primary rolling stand.

[0017] Figure 2 The utility model is a three-dimensional schematic diagram of a graphite steel roll shaft used for a primary rolling mill frame.

[0018] Figure 3 The utility model is a cross-sectional schematic diagram of a graphite steel roll mounting assembly for a primary rolling mill stand.

[0019] Figure 4 The utility model is a three-dimensional schematic diagram of a graphite steel roll disc used for a primary rolling mill frame.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Roller sleeve; 2. Outer roller layer; 3. Inner roller layer; 4. Roller shaft; 5. Mounting block; 6. Chamber; 7. Adjusting column; 8. Screw; 9. Disc; 10. Through slot; 11. Slider; 12. Block; 13. Movable rod; 14. Round hole; 15. Through hole; 16. Mounting hole; 17. Cross slot; 18. Cross rod; 19. Turntable. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 4 As shown:

[0027] The utility model provides a graphite steel roller for a preliminary rolling stand, comprising a roller sleeve 1, wherein the roller sleeve 1 comprises an outer roller layer 2 and an inner roller layer 3, wherein the outer roller layer 2 is arranged on the periphery of the inner roller layer 3, a roller shaft 4 is sleeved inside the inner roller layer 3, a mounting assembly is arranged inside the roller shaft 4, and the roller sleeve 1 and the roller shaft 4 are connected via the mounting assembly, and mounting blocks 5 are arranged at both ends of the roller shaft 4, so as to facilitate the subsequent installation of the roller sleeve 1 on the preliminary rolling stand for use.

[0028] Among them, the outer roller layer 2 is made of graphite steel. Since this material contains graphite in its structure, it can improve thermal conductivity and reduce thermal stress, so that the formation and expansion of thermal cracks of the roller sleeve 1 during use are greatly reduced, the wear resistance and biting ability of the roller sleeve 1 are improved, and the service life of the roller sleeve 1 is extended.

[0029] Among them, the mounting assembly includes a chamber 6 opened inside the roller shaft 4, an adjusting column 7 is provided inside the chamber 6, a screw 8 is provided on the top of the adjusting column 7, a circle of threads is provided on the top of the chamber 6, the screw 8 and the threads match, and a disc 9 is provided in the chamber 6, a plurality of through grooves 10 are evenly provided on the surface of the disc 9, a slider 11 is provided in the through groove 10, and a block 12 is provided on one side of the slider 11.

[0030] Among them, the other side of the slider 11 is connected to a movable rod 13 through a hinge seat, and the other end of the movable rod 13 is connected to the adjustment column 7 through a hinge seat, so that when the adjustment column 7 moves under the action of the screw rod 8, it can drive the movable rod 13 to move toward the circumferential side.

[0031] The disc 9 is fixedly connected to the inner wall of the chamber 6 , and a circular hole 14 is provided at the axis of the disc 9 . The adjusting column 7 is installed through the circular hole 14 . The adjusting column 7 and the disc 9 are not connected, and the adjusting column 7 can move through the disc 9 .

[0032] Among them, the inner wall of the chamber 6 is provided with a plurality of through holes 15, and the inner wall of the inner roller layer 3 is provided with a plurality of mounting holes 16. The mounting holes 16, the through holes 15 and the block 12 match each other. Through the cooperation among the screw 8, the adjusting column 7, the disc 9, the movable rod 13, the through groove 10 and the slider 11, the screw 8 moves downward, driving the adjusting column 7 to move, driving the movable rod 13 to push the slider 11 to move in the through groove 10, so that the block 12 moves toward the circumferential side, and the block 12 is installed in the mounting hole 16 through the through hole 15, so as to achieve the effect of quickly installing the roller sleeve 1, thereby avoiding the problem that the graphite steel rolling roller can only be replaced as a whole after being scrapped due to wear on its surface after long-term use, which causes great waste, thereby improving practicality.

[0033] Among them, a cross groove 17 is opened at the top of the screw rod 8, and a cross rod 18 is engaged in the cross groove 17. A turntable 19 is provided on the top of the cross rod 18 to facilitate the control of the movement of the screw rod 8. When not in use, the cross rod 18 can be taken out to avoid affecting the use of the roller.

[0034] The specific usage and function of this embodiment are as follows:

[0035] First, check the integrity of the device, and then install the device on a horizontal plane. The outer roller layer 2 of the roller sleeve 1 is made of graphite steel. This material contains graphite in its structure, which can improve thermal conductivity and reduce thermal stress, so that the formation and expansion of thermal cracks in the roller sleeve 1 during use are greatly reduced, the wear resistance and biting ability of the roller sleeve 1 are improved, and the service life of the roller sleeve 1 is extended. However, after long-term use, the surface of the roller sleeve 1 will inevitably be worn or even scrapped. Therefore, when the roller needs to be replaced, the cross rod 18 is inserted into the cross groove 17 at the top of the screw rod 8, and then the turntable 19 is rotated. Under the cooperation between the screw rod 8, the adjusting column 7, the disc 9, the movable rod 13, the through groove 10 and the slider 11, the screw rod 8 moves upward, drives the adjusting column 7 to move, drives the movable rod 13 to push the slider 11 to move in the through groove 10, so that the block 12 moves inward. The roller sleeve 1 is quickly disassembled by moving the clamping block 12 sideways and disengaging the clamping block 12 from the mounting hole 16 through the through hole 15. This method is very quick and convenient. In addition, the cross rod 18 and the cross groove 17 are matched so that the cross rod 18 can be taken out when not in use, which can avoid affecting the subsequent installation and use of the roller sleeve 1. After the roller sleeve 1 is taken out, a new roller sleeve 1 is replaced. After alignment, the turntable 19 is rotated in the opposite direction to move the screw rod 8 downward, drive the adjusting column 7 to move, drive the movable rod 13 to push the slider 11 to move in the through groove 10, so that the clamping block 12 moves toward the circumferential side, and the clamping block 12 is installed in the mounting hole 16 through the through hole 15. This achieves the effect of quickly installing the roller sleeve 1, thereby avoiding the problem that the graphite steel roller can only be replaced as a whole after being scrapped due to wear on its surface after long-term use, which causes great waste, thereby improving practicality.

[0036] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A graphite steel roll for a blooming mill stand, comprising a roll sleeve (1), characterized in that: The roller sleeve (1) comprises an outer roller layer (2) and an inner roller layer (3), wherein the outer roller layer (2) is mounted on the periphery of the inner roller layer (3), a roller shaft (4) is mounted inside the inner roller layer (3), a mounting assembly is provided inside the roller shaft (4), and the roller sleeve (1) and the roller shaft (4) are connected via the mounting assembly, and mounting blocks (5) are provided at both ends of the roller shaft (4).

2. A graphite steel roll for a blooming mill stand as claimed in claim 1, characterized in that: The outer roller layer (2) is made of graphite steel.

3. A graphite steel roll for a blooming mill stand as claimed in claim 1, characterized in that: The mounting assembly comprises a chamber (6) opened inside the roller shaft (4), an adjusting column (7) is arranged inside the chamber (6), a screw (8) is arranged on the top of the adjusting column (7), a disc (9) is arranged inside the chamber (6), a plurality of through grooves (10) are evenly arranged on the surface of the disc (9), a slider (11) is arranged inside the through groove (10), and a block (12) is arranged on one side of the slider (11).

4. A graphite steel roll for a blooming mill stand as claimed in claim 3, characterized in that: The other side of the sliding block (11) is connected to a movable rod (13) via a hinge seat, and the other end of the movable rod (13) is connected to an adjustment column (7) via a hinge seat.

5. A graphite steel roll for a blooming mill stand as claimed in claim 4, characterized in that: The disc (9) is fixedly connected to the inner wall of the chamber (6), and a circular hole (14) is provided at the axis of the disc (9), and the adjustment column (7) is installed through the circular hole (14).

6. A graphite steel roll for a blooming mill stand as claimed in claim 5, characterized in that: The inner wall of the chamber (6) is provided with a plurality of through holes (15), and the inner wall of the inner roller layer (3) is provided with a plurality of mounting holes (16), and the mounting holes (16), the through holes (15) and the clamping blocks (12) match each other.

7. A graphite steel roll for a blooming mill stand as claimed in claim 3, characterized in that: A cross groove (17) is provided at the top of the screw rod (8), a cross rod (18) is engaged in the cross groove (17), and a rotating disk (19) is provided at the top of the cross rod (18).

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