A rolling mill balancer device

Abstract

The utility model relates to rolling production equipment technical field discloses a rolling mill balancer device, including support seat and tension column, the tension column is installed protection cover, annular balancer, copper nut and pressure ball pad in proper order. Protection cover is equipped with built -in recess fixed annular balancer, copper nut plane fixed, pressure ball pad arc shape oil circuit. Annular balancer is elastic damping body, is constituted by cylinder body, piston rod and disc spring, and disc spring is deformed elastically and absorbs impact force when piston rod is under pressure. The device is installed through protection cover and annular balancer cooperation, and the stability is improved, and the elastic damping body annular balancer buffering vibration, and pressure ball pad optimization stress and realizes good lubrication. Effectively solve the existing balancer installation instability, buffer and lubrication problem such as not good, improve rolling mill operation stability, reduce component wear, prolong the service life of equipment, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of steel rolling production equipment, and in particular to a rolling mill balancer device. Background Technology

[0002] In steel rolling production within the metallurgical industry, short-stress rolling mills are crucial equipment that all steel rolling enterprises must use. Common models include 320, 350, 450, 550, 650, and 750 millimeters, and they are used extensively in production. When operating online, the rolling mill itself can be adjusted to control the rolling tension and material shape. Typically, the mill gap needs to be controlled within ≥0.2-≥0.5 mm, the bounce during slitting rolling needs to be controlled within ≥0.2-≥0.4 mm, and the relevant controls for the finished product mill are also within this range of ≥0.2-≥0.4 mm, but controlling these conditions is quite challenging.

[0003] Currently, each short-stress rolling mill is typically equipped with 8 copper nuts, 4 limit pins, and 4 covers. However, in actual use, these mechanisms are difficult to effectively control mill clearance and bounce, thus adversely affecting rolling costs and finished product quality. In the rolling mill, the elastic damping body and bearing ball pads are supposed to buffer the copper nuts and the rolling mill body, eliminating clearance and reducing the impact of the rolling mill body on the bearing housing and bearings, ensuring the stability of the rolling mill's online operation. However, due to the insufficient design rigor of the existing rolling mill elastic damping body, when adjusting the rolling mill body, the bearing housing is prone to tilting to both sides during vertical adjustment. This can lead to skewness or breakage of the elastic damping body's stroke rod, causing equipment instability and resulting in large bearing housing bounce or even seizure. Therefore, a rolling mill balancer device has been developed. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a mill balancer device to solve the problems of difficulty in controlling gaps and bounces and poor stability in the operation of existing short-stress mills, thereby improving work efficiency and steel product quality.

[0005] To achieve the aforementioned objectives of this utility model, the technical solution adopted is as follows: A rolling mill balancer device for short-stress rolling mills includes a support base and a tension column. On the tension column, a protective cover, an annular balancer, a copper nut, and a pressure-bearing ball pad are sequentially installed from both ends to the middle on both sides of the support base. The protective cover has an internal groove, and the annular balancer is installed within the internal groove. This fit ensures a more stable installation of the annular balancer and effectively prevents displacement or shaking during rolling mill operation. The copper nut has a planar fixing structure, providing a stable fixing effect and ensuring the installation accuracy of all components on the tension column.

[0006] As a further improvement of this utility model, the pressure-bearing ball pad is arc-shaped and has an oil passage. The arc-shaped structure can better adapt to the stress conditions during the operation of the rolling mill, while the oil passage can achieve a good lubrication effect, reduce friction between components, and improve the service life and working efficiency of the equipment.

[0007] As a further improvement of this utility model, the annular balancer is configured to cooperate with the built-in groove.

[0008] As a further improvement of this utility model, the annular balancer is an elastic damping body, comprising a cylinder, a piston rod, and a disc spring. The cylinder has an internal cavity with an opening at one end. A sealing structure is provided at the opening. One end of the piston rod passes through the opening and extends into the cavity. The piston rod is slidably sealed to the sealing structure at the opening, ensuring the cavity's internal sealing and preventing lubricant leakage. The disc spring is sleeved on the portion of the piston rod located within the cavity, with one end abutting against the bottom of the cavity and the other end abutting against a limiting structure on the piston rod. When the rolling mill generates impact force, the piston rod moves into the cavity under the impact force, compressing the disc spring. The disc spring absorbs the impact force through its elastic deformation, providing good buffering. Simultaneously, the elastic damping body's characteristics effectively suppress vibration and improve the stability of the rolling mill operation.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the installation stability of the ring balancer is improved by the cooperation between the protective cover and the ring balancer; the ring balancer with elastic damping body structure can effectively absorb the impact force generated during the operation of the rolling mill, suppress vibration, and improve the stability of the rolling mill operation; the arc-shaped structure and oil circuit design of the pressure ball pad optimize the stress condition and achieve good lubrication, reduce component wear, and improve the service life and working efficiency of the equipment. Attached Figure Description

[0010] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the ring balancer of this utility model.

[0011] In the diagram: 1. Support base, 2. Tension column, 3. Protective cover, 4. Ring balancer, 5. Copper nut, 6. Pressure ball pad, 7. Cylinder body, 8. Piston rod. Detailed Implementation

[0012] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0013] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0014] like Figure 1-2 As shown, a rolling mill balancer device for short-stress rolling mills includes a support base 1 and a tension column 2. On the tension column 2, from both ends to the middle, a protective cover 3, an annular balancer 4, a copper nut 5, and a pressure-bearing ball pad 6 are sequentially installed on both sides of the support base 1. The protective cover 3 has an internal groove, and the annular balancer 4 is installed within the internal groove. This fit ensures a more stable installation of the annular balancer 4, effectively preventing displacement or shaking during rolling mill operation. The copper nut 5 has a planar fixing structure, providing a stable fixing effect and ensuring the installation accuracy of each component on the tension column 2.

[0015] The pressure-bearing ball pad 6 is arc-shaped and has an oil passage. The arc-shaped structure can better adapt to the stress conditions during the operation of the rolling mill, while the oil passage can achieve a good lubrication effect, reduce friction between components, and improve the service life and working efficiency of the equipment.

[0016] The annular balancer 4 is configured to cooperate with the built-in groove.

[0017] The annular balancer 4 is an elastic damping body, comprising a cylinder 7, a piston rod 8, and a disc spring. The cylinder 7 has an internal cavity with an opening at one end. A sealing structure is provided at the opening. One end of the piston rod 8 passes through the opening and extends into the cavity. The piston rod 8 is slidably sealed to the sealing structure at the opening, ensuring the cavity's internal airtightness and preventing lubricant leakage. The disc spring is fitted onto the portion of the piston rod 8 located within the cavity, with one end abutting against the bottom of the cavity and the other end abutting against a limiting structure on the piston rod 8. When the rolling mill generates impact force, the piston rod 8 moves into the cavity under the impact force, compressing the disc spring. The disc spring absorbs the impact force through its elastic deformation, providing good buffering. Simultaneously, the elastic damping body's characteristics effectively suppress vibration and improve the stability of the rolling mill operation.

[0018] Working Principle: During actual installation, first fix the support base 1 at the corresponding position on the short-stress rolling mill, and then install the tension column 2 on the support base 1. Next, starting from both ends of the tension column 2, install the protective covers 3 sequentially on the tension column 2 at positions on both sides of the support base 1, so that the built-in grooves on the protective covers 3 face the center of the tension column 2. Install the annular balancer 4 in the built-in groove of the protective cover 3, ensuring a stable installation. Then, screw the copper nut 5 onto the tension column 2, using its planar fixing structure to secure the annular balancer 4 and other components. Finally, install the pressure-bearing ball pad 6 on the tension column 2 near the center, so that the arc-shaped surface of the pressure-bearing ball pad 6 contacts the corresponding component of the rolling mill, and provide lubricating oil to the pressure-bearing ball pad 6 through the oil passage to ensure good lubrication.

[0019] During the operation of the rolling mill, when subjected to impact force, the piston rod 8 in the annular balancer 4 moves into the cavity of the cylinder 7 under the action of the impact force, compressing the disc spring. The disc spring absorbs the impact force and plays a buffering role. At the same time, the elastic damping body suppresses vibration and ensures stable operation of the rolling mill. The arc-shaped structure of the pressure-bearing ball pad 6 can evenly distribute pressure when subjected to force, and the oil circuit continuously provides lubrication, reducing friction between components and improving the reliability and service life of the equipment.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, component disassembly or combination, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mill balancer device for short-stress mills, comprising a support base and a tension column, characterized in that: The tension column is equipped with a protective cover, an annular balancer, a copper nut, and a pressure ball pad in sequence from both ends to the middle on both sides of the support base. The protective cover has a built-in groove, the annular balancer is installed in the built-in groove, the copper nut is a planar fixed structure, and the pressure ball pad is arc-shaped and has an oil passage.

2. The mill balancer device according to claim 1, characterized in that: The pressure-bearing ball pad has an arc-shaped structure and is equipped with an oil passage.

3. The mill balancer device according to claim 1, characterized in that: The annular balancer is configured to cooperate with the built-in groove.

4. A mill balancer device according to claim 1, characterized in that: The ring balancer is an elastic damping body.

5. A mill balancer device according to claim 4, characterized in that: The elastic damping body includes a cylinder, a piston rod, and a disc spring. The cylinder has a cavity inside, with an opening at one end and a sealing structure at the opening. One end of the piston rod passes through the opening and extends into the cavity. The piston rod is slidably sealed to the sealing structure at the opening. The disc spring is sleeved on the portion of the piston rod located in the cavity, with one end abutting against the bottom of the cavity and the other end abutting against a limiting structure on the piston rod.

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