Sheet metal slab reversing mechanism of hot mill
By designing an automated metal plate slab reversing mechanism, the screw rod, lifting cylinder and commutation motor can be used to achieve automatic lifting and rotation of the slab, which solves the problem of unsafe and unstable reversing of high-temperature slabs and improves the reversing The safety and speed of the lifting and lowering are ensured through the cooperation of anti-slip strips and guide strips.
Patent Information
- Application Number
- CN202323440595.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-18
AI Technical Summary
In metal slab hot rolling mills, high-temperature slabs cannot be manually reversed, resulting in unsafe and unstable reversing operation, and cannot meet the process requirements of rapid lifting and lowering reversing.
A metal plate slab reversing mechanism including a fixed cylinder, a threaded screw, a hoisting cylinder, a commutation motor and a rotary table is designed. The automatic lifting and lowering of the slab and 90° are achieved through the combination of the screw and the hoisting cylinder. Rotate, mechanized commutation is performed using servo motors and commutation motors, and anti-slip strips are provided on the rotary table to reduce the moment of rotational inertia, providing guidance constraints through guide strips and limit slots.
It improves the safety and stability during commutation, realizes rapid lifting and reversing operation, shortens the rotation time, and ensures the stability and stability of lifting and lowering.
Smart Images
Figure CN222175386U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slab hot rolling production, in particular to a slab reversing mechanism for a metal plate of a hot rolling machine. Background Art
[0002] Rolling is relative to cold rolling. Cold rolling is rolling performed below the recrystallization temperature, while hot rolling is rolling performed above the recrystallization temperature. Simply put, a piece of steel billet is heated and then rolled several times, then trimmed and corrected into a steel plate. This is called hot rolling. The hot strip rolling mill consists of a rough rolling mill and a finishing mill. The rough rolling mill is divided into three types: semi-continuous, 3 / 4 continuous and full continuous.
[0003] In the metal slab rolling process, the hot slab is required to be rolled back and forth multiple times on the hot rolling mill; the rolling process requires that the slab be rolled longitudinally and transversely in a certain pass, and the reversing operation must be completed within the process requirement time to meet the temperature drop requirement during the slab rolling process. Since the temperature of the slab is relatively high, manual reversing operation cannot be performed. For this reason, the utility model provides a reversing mechanism that can quickly realize automatic lifting of the slab and forward or reverse rotation of 90°. Utility Model Content
[0004] The utility model aims to provide a hot rolling mill metal plate slab reversing mechanism to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot rolling mill metal plate slab reversing mechanism, comprising a fixed cylinder, the interior of the fixed cylinder is a hollow structure design, a threaded screw is installed on the bottom end of the fixed cylinder through a bearing, a lifting cylinder is sleeved on the outside of the threaded screw, the lifting cylinder is threadedly connected to the threaded screw, the lifting cylinder is placed inside the fixed cylinder and the two are slidably connected, an upper mounting plate is fixedly installed on the top of the lifting cylinder, a motor housing is fixedly installed on the upper surface of the upper mounting plate, a reversing motor is fixedly installed in the motor housing, the output shaft of the reversing motor passes through the upper surface of the motor housing and is fixedly connected to a turntable, and a plurality of evenly distributed anti-slip strips are provided on the upper surface of the turntable.
[0006] Preferably, longitudinally arranged limiting grooves are provided on the inner walls on both sides of the fixing cylinder, and guide bars are fixedly installed on the outer walls on both sides of the lifting cylinder. The guide bars are placed inside the limiting grooves, and the two are slidably connected.
[0007] Preferably, a lower fixing plate is fixedly mounted on the lower surface of the fixing cylinder.
[0008] Preferably, a servo motor is fixedly installed at the center position of the lower surface of the lower fixed plate, and the output shaft of the servo motor is fixedly connected to the bottom end of the threaded screw.
[0009] Preferably, a lower base is fixedly mounted on the bottom end of the lower fixing plate.
[0010] Preferably, the fixing tube is externally covered with an outer sheath.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The slab reversing mechanism of the utility model can lift the slab through the coordinated use of a screw rod and a lifting cylinder, and after lifting, it can be rotated and reversed by a reversing motor, so as to improve the safety and stability during reversing, and the process operation of rapid lifting and reversing can be met through the mechanized reversing operation, and the anti-skid strips are arranged on the turntable, and the anti-skid effect of the surface of the turntable can be improved by the anti-skid strips, and the rotational inertia moment can be reduced by increasing the friction force. When the slab rotates stably, the rotation time can be effectively shortened, and at the same time, through the coordinated use of the guide strips and the limit grooves, a certain lifting guiding effect can be provided, and a certain guiding and restraining effect can be achieved, so as to ensure smooth lifting and lowering and improve the lifting stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the external three-dimensional structure of an embodiment of the utility model;
[0014] Figure 2 This is a bottom bottom structural schematic diagram of the reversing mechanism of an embodiment of the utility model;
[0015] Figure 3 For the utility model embodiment Figure 1 A schematic diagram of the enlarged structure of area A;
[0016] Figure 4 This is a schematic diagram of the structure below the turntable of an embodiment of the utility model;
[0017] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the fixing cylinder according to an embodiment of the utility model.
[0018] In the figure: 1. fixing cylinder; 2. threaded screw; 3. lifting cylinder; 4. limiting groove; 5. guide strip; 6. upper mounting plate; 7. motor housing; 8. reversing motor; 9. turntable; 10. anti-slip strip; 11. lower fixing plate; 12. lower base; 13. servo motor; 14. outer sheath. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] See also Figure 1-5 The utility model provides an embodiment: a hot rolling mill metal plate blank reversing mechanism, comprising a fixed cylinder 1, the interior of the fixed cylinder 1 is a hollow structure design, the bottom end of the fixed cylinder 1 is installed with a threaded screw 2 through a bearing, the threaded screw 2 is sleeved with a jacking cylinder 3, the jacking cylinder 3 is threadedly connected with the threaded screw 2, the jacking cylinder 3 is placed inside the fixed cylinder 1 and the two are slidably connected;
[0023] In this structural design, the threaded screw 2 can rotate. Since the threaded screw 2 is threadedly connected to the lifting cylinder 3, when the threaded screw 2 rotates, the lifting cylinder 3 will move up and down, thereby driving the structure above it to move up and down as a whole.
[0024] An upper mounting plate 6 is fixedly mounted on the top of the jacking cylinder 3, a motor housing 7 is fixedly mounted on the upper surface of the upper mounting plate 6, a reversing motor 8 is fixedly mounted inside the motor housing 7, and the output shaft of the reversing motor 8 passes through the upper surface of the motor housing 7 and is fixedly connected to a turntable 9, and the reversing motor 8 can drive the turntable 9 to perform a 90° clockwise or counterclockwise rotation, thereby completing the automatic reversing of the slab;
[0025] A number of evenly distributed anti-slip strips 10 are provided on the upper surface of the turntable 9. The anti-slip strips 10 can improve the anti-slip effect of the upper surface of the turntable 9. By increasing the friction force, the rotational inertia moment can be reduced. When the plate blank rotates stably, the rotation time can be effectively shortened.
[0026] In this embodiment, in order to guide and limit the lifting cylinder 3 to prevent it from rotating with the threaded screw 2 and ensure its normal lifting effect, longitudinal limit grooves 4 are opened on the inner walls of both sides of the fixed cylinder 1, and guide strips 5 are fixedly installed on the outer walls of both sides of the lifting cylinder 3. The guide strips 5 are placed inside the limit grooves 4, and the two are slidably connected;
[0027] This structural design, through the coordinated use of the guide strip 5 and the limit groove 4, can provide a certain lifting and guiding effect, has a certain guiding and restraining effect, ensures smooth lifting and lowering, and improves lifting and lowering stability.
[0028] In this embodiment, a lower fixing plate 11 is fixedly mounted on the lower surface of the fixing cylinder 1;
[0029] In order to provide rotational power to the threaded screw 2, a servo motor 13 is fixedly installed at the center of the lower surface of the lower fixed plate 11, and the output shaft of the servo motor 13 is fixedly connected to the bottom end of the threaded screw 2;
[0030] Furthermore, a lower base 12 is fixedly mounted on the bottom end of the lower fixing plate 11, and the installation stability can be improved by setting the lower base 12.
[0031] In this embodiment, in order to protect the exterior of the fixing tube 1 , an outer sheath 14 is provided on the exterior of the fixing tube 1 .
[0032] Working principle: When reversing is required, the slab material passes through the roller table of the hot rolling mill and enters the turntable 9;
[0033] At this time, the servo motor 13 can be rotated. When the servo motor 13 is rotating, it will drive the threaded screw 2 to rotate synchronously. When the threaded screw 2 is rotating, the jacking cylinder 3 threadedly connected thereto will rise. When the jacking cylinder 3 rises to the highest position, the servo motor 13 stops working. At this time, the slab is lifted to the highest position and leaves the roller table.
[0034] After the slab is lifted to the highest position, the reversing motor 8 can be used to rotate 90° clockwise or counterclockwise, thereby driving the turntable 9 and the slab thereon to perform a 90° reversal operation;
[0035] In this way, the reversing operation can be completed automatically;
[0036] After the reversal is completed, the servo motor 13 is reversed. When the servo motor 13 is reversed, the screw rod 2 is reversely rotated, thereby driving the lifting cylinder 3 to descend and reset, and the slab falling on the roller table is automatically sent to the guide ruler and roller on the front side of the machine according to the program;
[0037] The slab reversing mechanism of the utility model can lift the slab through the coordinated use of a screw rod and a lifting cylinder, and after lifting, it can be rotated and reversed by a reversing motor, so as to improve the safety and stability during reversing, and the process operation of rapid lifting and reversing can be met through the mechanized reversing operation, and the anti-skid strips are arranged on the turntable, and the anti-skid effect of the surface of the turntable can be improved by the anti-skid strips, and the rotational inertia moment can be reduced by increasing the friction force. When the slab rotates stably, the rotation time can be effectively shortened, and at the same time, through the coordinated use of the guide strips and the limit grooves, a certain lifting guiding effect can be provided, and a certain guiding and restraining effect can be achieved, so as to ensure smooth lifting and lowering and improve the lifting stability.
[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A hot rolling mill metal plate blank reversing mechanism, comprising a fixed cylinder (1), characterized in that: The interior of the fixed cylinder (1) is designed as a hollow structure. A threaded screw (2) is installed at the bottom end of the fixed cylinder (1) through a bearing. A lifting cylinder (3) is sleeved on the outside of the threaded screw (2). The lifting cylinder (3) is threadedly connected to the threaded screw (2). The lifting cylinder (3) is placed inside the fixed cylinder (1) and the two are slidably connected. An upper mounting plate (6) is fixedly installed at the top of the lifting cylinder (3). A motor housing (7) is fixedly installed on the upper surface of the upper mounting plate (6). A reversing motor (8) is fixedly installed in the motor housing (7). The output shaft of the reversing motor (8) passes through the upper surface of the motor housing (7) and is fixedly connected to a turntable (9). The upper surface of the turntable (9) is provided with a plurality of evenly distributed anti-slip strips (10).
2. A hot rolling mill metal plate slab reversing mechanism according to claim 1, characterized in that: The inner walls on both sides of the fixed cylinder (1) are provided with longitudinally arranged limit grooves (4), and the outer walls on both sides of the lifting cylinder (3) are fixedly installed with guide strips (5), and the guide strips (5) are placed inside the limit grooves (4), and the two are slidably connected.
3. A hot rolling mill metal plate slab reversing mechanism according to claim 1, characterized in that: A lower fixing plate (11) is fixedly mounted on the lower surface of the fixing cylinder (1).
4. A hot rolling mill metal plate slab reversing mechanism according to claim 3, characterized in that: A servo motor (13) is fixedly mounted at the center of the lower surface of the lower fixed plate (11), and the output shaft of the servo motor (13) is fixedly connected to the bottom end of the threaded screw rod (2).
5. The hot rolling mill metal plate slab reversing mechanism according to claim 3, characterized in that: A lower base (12) is fixedly mounted on the bottom end of the lower fixing plate (11).
6. A hot rolling mill metal plate slab reversing mechanism according to claim 1, characterized in that: The fixing tube (1) is externally covered with an outer protective sleeve (14).