Roll balance cylinder for steel rolling
By adopting a compact hydraulic cylinder design on the steel rolling mill, the cylinder block sealing and balance is achieved using oil and gas medium, the problems of rolling mill space limitations and cumbersome oil path layout are solved, and the production efficiency and maintenance convenience of steel rolling are improved.
Patent Information
- Application Number
- CN202421588393.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-07
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-07-07
AI Technical Summary
During the installation and maintenance process of existing rolling roll balance devices on steel rolling mills, there are problems such as space limitations, cumbersome oil path arrangement, and high manufacturing and maintenance work intensity, especially in small spaces, it is difficult to install and quickly replace oil cylinders.
It adopts a compact hydraulic cylinder design, including a lower roller seat, an upper roller seat and a hydraulic cylinder. The compressed gas is stored in the piston, and the cylinder block is sealed and balanced through oil and gas medium, simplifying the installation and maintenance process.
It solves the complexity of oil circuit arrangement and maintenance of oil cylinders on the rolling mill, improves the production efficiency of rolling steel, simplifies the fault replacement process, and reduces the working intensity.
Smart Images
Figure CN222277094U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a roller balancing cylinder for steel rolling. Background Art
[0002] The purpose of setting up the roll balancing device is to eliminate the impact caused by the clearance between the relevant parts in the working machine base during the rolling process, so as to ensure the rolling accuracy of the rolled piece, improve the biting conditions, and prevent the slipping between the working roll and the supporting roll. The balancing devices commonly used in rolling mills are mainly spring type, heavy hammer type, damping type and hydraulic type. The spring type balancing device is only used for small and medium-sized steel and wire mills with small upper roll adjustment stroke. Its characteristics are simple structure, low cost and easy maintenance; the heavy hammer type balancing device is widely used in slab mills, medium and thick plate mills and large steel mills with large upper roll adjustment stroke, slow adjustment speed and low product quality requirements. It is the earliest and most widely used roll balancing device. Its advantages are simple operation, large adjustment stroke, few wear parts and easy maintenance. The disadvantage is that the foundation of the machine base is deep, which increases the infrastructure investment; the balancing weight is heavy and the inertia force generated is large, which can easily cause impact in the balancing system and affect the quality of the rolled product; hydraulic balancing devices are widely used in modern high-precision rolling mills. This type of balancing device has various forms. Its advantage is that it is suitable for balancing upper rolls of various heights. The disadvantage is that the adjustment height should not be too high, otherwise it will be difficult to manufacture and maintain. Summary of the invention
[0003] The utility model aims to provide a roll balancing cylinder for steel rolling, which has a compact structure, is easy to be installed and put into use in a small space of a rolling mill, and is convenient to adjust.
[0004] The technical solution adopted by the utility model is a roller balancing cylinder for steel rolling, which comprises a lower roller seat and an upper roller seat, a hydraulic cylinder is arranged between the upper and lower roller seats, a pit is arranged at the top of the piston of the hydraulic cylinder, a valve is arranged in the pit, and the piston is a cavity structure for storing compressed gas; a bottom cover is arranged at the bottom end of the piston, an oil hole is arranged in the center of the bottom cover, oil is arranged in the hydraulic cylinder body, and a bottom cover is arranged at the bottom of the hydraulic cylinder body.
[0005] The utility model has a compact structure and is easy to install and use in a small space of a rolling mill. After the utility model is put into production, it fundamentally solves the problem of frequent arrangement of oil cylinder oil circuits on the rolling mill and the heavy and high work intensity problems of manufacturing, use and maintenance caused by it; at the same time, after the application of the utility model, when the oil cylinder fails, it can be replaced more conveniently and quickly, thereby substantially improving the efficiency of steel rolling production. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 This is a schematic diagram of the installation position structure of the utility model;
[0007] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A in FIG.
[0008] In the figure: 1 lower roll seat, 2 cavity structure, 3 valve, 4 pit, 5 upper roll seat, 7 hydraulic cylinder, 8 oil, 10 bottom cover, 11 bottom cover, 13 oil hole, 14 piston. DETAILED DESCRIPTION
[0009] A roller balancing cylinder for steel rolling, such as Figure 1 , 2 As shown, it includes a lower roll stand 1 and an upper roll stand 5, a hydraulic cylinder 7 is arranged between the upper and lower roll stands, a pit 4 is arranged at the top of the piston 14 of the hydraulic cylinder 7, a valve 3 is arranged in the pit 4, and a cavity structure 2 is arranged in the piston 14 for storing compressed gas; a bottom cover 11 is arranged at the bottom of the piston 14, and an oil hole 13 is arranged in the center of the bottom cover 11, oil 8 is arranged in the cylinder body of the hydraulic cylinder 7, and a bottom cover 10 is arranged at the bottom of the cylinder body of the hydraulic cylinder 7. When the medium structure of oil and compressed gas is adopted, it is convenient for the self-sealing of the cylinder body and the balanced operation is ensured. The piston body and the cylinder body adopt the bottom cover structure, which can be convenient for manufacturing and realizing the invention function.
[0010] After the utility model is manufactured as shown in the attached drawings, oil is first added through the valve, and after the oil fills the cylinder cavity through the oil path, compressed gas is injected, and the piston body is naturally extended from the cylinder body under the pressure of the compressed gas (in actual use, compressed gas of a certain pressure is added to the piston body according to the actual balance force required by the rolling mill, and the actual size of the oil cylinder of the utility model can also be manufactured according to the actual balance force required). One end of the piston body or cylinder body is installed on the lower roller bearing seat that needs to be balanced, and the other end of the piston body or cylinder body is installed on the other upper roller bearing, so that the two upper and lower rollers that need to be balanced are in a balanced state.
[0011] The utility model has a compact structure and is easy to install and use in a small space of a rolling mill. After the utility model is put into production, it fundamentally solves the problem of frequent arrangement of oil cylinder oil circuits on the rolling mill and the heavy and high work intensity problems of manufacturing, use and maintenance caused by it; at the same time, after the application of the utility model, when the oil cylinder fails, it can be replaced more conveniently and quickly, thereby substantially improving the efficiency of steel rolling production.
Claims
1. A roll balancing cylinder for steel rolling, comprising a lower roll seat and an upper roll seat, characterized in that: A hydraulic cylinder is arranged between the upper and lower roller seats, a pit is arranged on the top of the piston of the hydraulic cylinder, a valve is arranged in the pit, the piston is a cavity structure for storing compressed gas; a bottom cover is arranged on the bottom of the piston, an oil hole is arranged in the center of the bottom cover, oil is arranged in the hydraulic cylinder body, and a bottom cover is arranged at the bottom of the hydraulic cylinder body.