Roll lubricating device

Abstract

The utility model belongs to the technical field of rolling mill equipment, especially relate to a roll lubricating device, its characterized in be including wireless temperature measurement box, temperature transmitter and lubricating liquid flow controller, the end of roll is adsorbed by magnet from wireless temperature measurement box, be equipped with temperature transmitter in wireless temperature measurement box, be equipped with embedded microcomputer in temperature transmitter, embedded microcomputer connects 5G temperature measurement sending module, power, LCD display screen, temperature transmission module and USB interface respectively, temperature transmission module is fixed in the bottom of wireless temperature measurement box, lubricating liquid flow controller includes singlechip and flow control valve, and singlechip connects flow control valve, solenoid valve drive circuit, 5G temperature measurement receiving module, power, LCD display screen and USB interface respectively, the utility model's advantage is: can be according to the temperature of roll and timely adjust the dosage of water-based lubricating liquid, make the heat of roll be taken away fast, keep the temperature of roll stable, improve the surface quality of hot-rolled steel plate and the service life of roll.

Description

Technical Field

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

[0002] A steel rolling production line is a production line used to deform steel ingots or billets through rolls to produce steel products of different shapes. It mainly includes two processes: hot rolling and cold rolling. Post-rolling cooling is the process of cooling hot-rolled steel from the final rolling temperature to room temperature. By controlling parameters such as coiling temperature and cooling rate, the properties of the steel are adjusted and the production efficiency of the rolling mill is affected. It involves heat exchange forms such as radiative heat transfer and convective heat transfer.

[0003] The application of water-based lubricants in rolling mill rolls primarily serves to reduce friction, extend equipment life, and improve product quality. Specifically: Reduced friction and energy consumption: Water-based lubricants significantly reduce the coefficient of friction between the rolls and steel, lowering rolling force by 10%-25%, thereby reducing energy consumption and increasing reduction, which is beneficial for producing thinner hot-rolled products. Extended roll life: Lubricants reduce the adhesion of iron oxide scale to the roll surface, suppress the Leidenfrost effect (the phenomenon of water droplets forming an air cushion on a high-temperature metal surface), prevent the formation of black scale on the rolls, extend service life, and reduce the frequency of roll changes. Improved product quality: Using water-based lubricants can improve sheet shape, enhance surface quality, reduce metal loss during pickling, and optimize grain structure properties (such as improved deep-drawing performance). Environmentally friendly characteristics: Some water-based lubricant formulations do not contain oil phase components, and residues can be removed with water or a slightly alkaline solution, reducing environmental pollution.

[0004] Chinese invention patent application number 202110547265.3 discloses a method for lubricating steel rolls with ink, which involves the following steps: 1) applying solid graphite to the area of ​​the roll requiring lubrication; 2) creating at least one through-hole in the solid graphite, with one end of the through-hole within the contact surface between the solid graphite and the roll, and the other end connected to an oil pump and oil tank via an oil circuit equipped with a one-way valve; 3) during the rolling process, injecting lubricating oil into the contact area between the solid graphite and the roll using the oil pump. The friction between the solid graphite and the roll causes the lubricating oil to mix with the graphite powder produced by the friction, forming a mixed layer of graphite powder and lubricating oil on the roll surface, thereby reducing steel sticking. The drawback of this lubrication scheme is that it cannot adjust the amount of lubricating medium according to the roll temperature, thus failing to ensure roll temperature stability and hindering the improvement of the surface quality of the rolled sheet. Utility Model Content

[0005] The purpose of this invention is to provide a roll lubrication device that overcomes the shortcomings of the prior art. During the rolling process of hot-rolled steel plates, the amount of water-based lubricant can be adjusted in a timely manner according to the temperature of the roll, so that the heat of the roll is quickly carried away, thereby maintaining the temperature stability of the roll, improving the surface quality of the hot-rolled steel plate and the service life of the roll.

[0006] To achieve the above objectives, this utility model employs the following technical solution: A roll lubrication device includes a wireless temperature measuring box, a temperature transmitter, and a lubricant flow controller. The wireless temperature measuring box is magnetically attached to the end of the roll. The temperature transmitter is located inside the wireless temperature measuring box and contains an embedded microcomputer. The embedded microcomputer is connected to a 5G temperature transmitting module, a power supply, an LCD display, a temperature transmission module, and a USB interface. The temperature transmission module is fixed to the bottom of the wireless temperature measuring box. The lubricant flow controller includes a microcontroller and a flow control valve. The microcontroller is connected to the flow control valve, a solenoid valve drive circuit, a 5G temperature receiving module, a power supply, an LCD display, and a USB interface. The flow control valve is installed on the roll lubricant supply pipeline, which has several nozzles evenly distributed.

[0007] Furthermore, the roll is a support roll or an upper support roll, and the roll is located in the final rolling stage.

[0008] Furthermore, the sensor in the temperature transmitter module is model PT100.

[0009] Furthermore, the embedded microcomputer uses an STM32F103 microcontroller chip.

[0010] Furthermore, the microcontroller chip model is STC89C52R; the solenoid valve drive circuit chip model is L9352B.

[0011] Furthermore, the chip model of the 5G temperature measurement receiver module is pSemi 5G module.

[0012] Furthermore, the chip model of the 5G temperature measurement and transmission module is Huawei MH5000-31.

[0013] Compared with the prior art, the beneficial effects of this utility model are: During the rolling process of hot-rolled steel plates, the amount of water-based lubricant can be adjusted in a timely manner according to the temperature of the rolls, so that the heat of the rolls can be quickly carried away, thereby maintaining the temperature stability of the rolls, improving the surface quality of hot-rolled steel plates and the service life of the rolls. It is sensitive, safe, reliable, accurate in temperature measurement, highly real-time, and highly automated, which helps maintain the uniformity of grain size during the hot-rolled steel plate rolling process, thereby ensuring the uniformity of steel plate performance and improving the production quality of hot-rolled steel plate products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the temperature transmitter in an embodiment of the present invention; Figure 3 This is a schematic diagram of the lubricant flow controller in an embodiment of this utility model; In the diagram: 1-upper support roller, 2-rolled piece, 3-antenna, 4-wireless temperature measurement box, 5-magnet, 6-support roller. Detailed Implementation

[0015] 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 some embodiments of this utility model, but not all embodiments.

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The components of the embodiments of this utility model described and shown in the drawings herein can be arranged and designed in many different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model.

[0017] See Figure 1-3This is a schematic diagram of an embodiment of a roll lubrication device according to this utility model. It includes a wireless temperature measuring box 4, a temperature transmitter, and a lubricant flow controller. The wireless temperature measuring box 4 is attached to the end of the roll by a magnet 5. The wireless temperature measuring box 4 contains a temperature transmitter and an antenna 3. An embedded microcomputer is located within the temperature transmitter and is connected to a 5G temperature transmission module, a power supply, an LCD display, a temperature transmitter module, and a USB interface. The temperature transmitter module is fixed to the bottom of the wireless temperature measuring box 4. The lubricant flow controller includes a microcontroller and a flow control valve. The microcontroller is connected to the flow control valve, a solenoid valve drive circuit, a 5G temperature receiving module, a power supply, an LCD display, and a USB interface. The temperature transmitter and the lubricant flow controller communicate via a 5G communication protocol. The roll temperature is transmitted to the lubricant flow controller in real time. The lubricant flow controller adjusts the switching frequency of the flow control valve based on the temperature signal, thereby controlling the flow rate of the lubricant and achieving lubrication and cooling of the roll.

[0018] In this embodiment, the sensor in the temperature transmitter module is a PT100, which is a platinum-based resistance temperature sensor. Its name derives from its standard resistance of 100 ohms at 0°C and approximately 138.5 ohms at 100°C. The relationship between its resistance and temperature follows the international standard IEC751, conforming to the formula Rt=R0(1+At+Bt) within the range of 0-850°C. 2 (A and B are experimentally determined coefficients). The sensor is manufactured using platinum wire winding or thin-film sputtering processes, featuring high precision, good stability, and a wide temperature range (-200℃ to 850℃). The embedded microcomputer uses an STM32F103 microcontroller. The STM32F series belongs to the mid-to-low-end 32-bit ARM microcontroller category. This series of chips is produced by STMicroelectronics (ST), and its core is Cortex-M3. The chip integrates a timer, CAN, ADC, SPI, and I... 2It features multiple peripheral functions including USB and UART. The microcontroller chip is the STC89C52R, an enhanced 8051 microcontroller from STC (Semiconductor Technology Co., Ltd.). The STC89C52R uses the 8051 CPU core and is characterized by low power consumption, making it suitable for various development environments. The solenoid valve drive circuit uses the L9352B chip, a four-channel low-side power switch manufactured by STMicroelectronics. Designed for driving inductive loads (such as solenoid valves), it is primarily used in high-reliability applications such as automotive ABS systems and industrial hydraulic control systems. It can replace traditional transistor or MOSFET drive solutions, reducing fault detection costs and improving circuit stability. The 5G temperature measurement receiver module uses the pSemi 5G module chip, manufactured by a company in Shanghai. The chip model of the 5G temperature measurement and transmission module is Huawei MH5000-31. Huawei MH5000-31 is a 5G module that is developed based on the Balong MH5000-31 module.

[0019] In operation, the wireless temperature measuring box 4 is first attached to the end of the support roller 6 or the upper support roller 1 by the magnet 5. This roller is located on the rolling mill in the final rolling stage, and the workpiece 2 is rolled. A flow control valve (not shown in the figure) is connected to the supply pipeline of the roller lubricant. Several nozzles are evenly arranged on the roller lubricant supply pipeline. The flow rate of the lubricant can be adjusted by controlling the opening and closing frequency and duration of the flow control valve.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll lubrication device, characterized in that, The device includes a wireless temperature measurement box, a temperature transmitter, and a lubricant flow controller. The wireless temperature measurement box is magnetically attached to the end of the roll. The temperature transmitter, which houses an embedded microcomputer, is connected to a 5G temperature transmission module, a power supply, an LCD display, a temperature transmission module, and a USB interface. The temperature transmission module is fixed to the bottom of the wireless temperature measurement box. The lubricant flow controller includes a microcontroller and a flow control valve. The microcontroller is connected to the flow control valve, a solenoid valve drive circuit, a 5G temperature receiving module, a power supply, an LCD display, and a USB interface. The flow control valve is located on the lubricant supply line for the roll, which has several nozzles evenly distributed along it.

2. The roll lubrication device according to claim 1, characterized in that, The roll is a support roll or an upper support roll, and the roll is located in the final rolling stage.

3. The roll lubrication device according to claim 1, characterized in that, The sensor in the temperature transmitter module is model PT100.

4. The roll lubrication device according to claim 1, characterized in that, The embedded microcomputer uses an STM32F103 microcontroller chip.

5. A roll lubrication device according to claim 1, characterized in that, The microcontroller chip is model STC89C52R; the solenoid valve drive circuit chip is model L9352B.

6. A roll lubrication device according to claim 1, characterized in that, The chip model of the 5G temperature measurement receiver module is pSemi 5G module.

7. A roll lubrication device according to claim 1, characterized in that, The chip model of the 5G temperature measurement and transmission module is Huawei MH5000-31.

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