CN216441383U - Rolling mill oil-gas lubrication system with automatic monitoring and control device - Google Patents
Rolling mill oil-gas lubrication system with automatic monitoring and control device Download PDFInfo
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- CN216441383U CN216441383U CN202121679740.4U CN202121679740U CN216441383U CN 216441383 U CN216441383 U CN 216441383U CN 202121679740 U CN202121679740 U CN 202121679740U CN 216441383 U CN216441383 U CN 216441383U
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Abstract
The utility model provides an oil-gas lubrication system of a rolling mill with an automatic monitoring and control device, which mainly relates to the field of aluminum plate rolling mills and comprises an oil supply device, an air supply device, a progressive distributor and an oil-gas mixing block, wherein the oil supply device comprises a hydraulic oil tank, a hydraulic oil pump and an auxiliary element of an oil supply pipeline, the air supply device comprises an air compressor, an air storage tank and an auxiliary element of an air supply pipeline, the oil supply device is connected to a progressive distributor, the progressive distributor is connected to the oil-gas mixing block, the air supply device is connected to the oil-gas mixing block, and an output pipeline of the oil-gas mixing block is connected with each lubrication point of the rolling mill. The utility model has the beneficial effects that: the utility model can monitor the oil-gas amount of each lubricating point of the rolling mill and automatically adjust the using amount of the lubricating oil, thereby saving the using amount of the lubricating oil, reducing the abrasion of the bearing seat, prolonging the service life of the working roll and reducing the operation and maintenance cost of the rolling mill.
Description
Technical Field
The utility model mainly relates to the field of aluminum plate rolling mills, in particular to an oil-gas lubricating system of a rolling mill with an automatic monitoring and control device.
Background
At present, rolling mill bearings are generally serial bearings which are mainly arranged on a working roll, a middle roll and a supporting roll, the lubricating modes of the bearings mainly comprise dry oil lubrication, thin oil lubrication and the like, the traditional lubricating modes mainly have the problems of large bearing load, high lubricating oil consumption, extremely limited oil supply regulating capacity, poor adaptability to high-temperature environment, inapplicability to occasions where bearing seats are easily corroded by the outside and the like, oil-gas lubrication is to convey thin oil to the bearings by using compressed air as power, lubricating oil moves forwards along the wavy pipe wall under the action of the compressed air and is sprayed to lubricating points by fine oil drops separated from the compressed air, and the existing oil-gas lubricating system has the problems of insufficient monitoring capacity, incapability of regulating the oil flow and the like.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model provides a rolling mill oil-gas lubrication system with an automatic monitoring and control device, which can realize automatic monitoring of all action elements and flow in the oil-gas lubrication system, can realize fixed-time and quantitative oil supply in a very wide range of environmental temperature and air pressure change, can generate larger positive pressure in an oil-gas lubricated bearing seat, can effectively prevent external erosion, is suitable for high-speed, heavy-load and high-temperature occasions, is provided with a filter additionally on an oil supply and air supply pipeline, can purify oil products, and ensures that the lubricating oil after working flows back to a hydraulic oil tank again, thereby realizing the recycling of the oil products, improving the utilization rate of the oil products, reducing environmental pollution and realizing zero emission.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a rolling mill oil-gas lubrication system with automatic monitoring and controlling means, includes oil supply unit, air feeder, distributor, the oil-gas mixture piece of advancing, oil supply unit includes hydraulic tank, hydraulic oil pump, air feeder includes air compressor, gas holder, set gradually first check valve, oil filter, first solenoid valve, first relief pressure valve between hydraulic oil pump and the distributor of advancing, the distributor of advancing is connected with the oil-gas mixture piece through the multiplexed output pipeline, set gradually second check valve, air filter, second solenoid valve, second relief pressure valve between air compressor and the oil-gas mixture piece, the oil-gas mixture piece links to each other with each lubrication point of rolling mill working roll through multiplexed output pipeline, set up oil-gas flow monitor and flow control valve between each lubrication point of oil-gas mixture piece output pipeline and rolling mill working roll, lubricating oil after each lubricating point department work of rolling mill working roll flows into the abandonment fluid collecting box through the pipeline, hydraulic oil pump, air compressor, oil gas flow monitor, flow control valve, first solenoid valve, second solenoid valve all are connected with the electric cabinet electricity.
And an oil pressure gauge and a pressure safety valve are arranged on an oil supply pipeline between the hydraulic oil pump and the progressive distributor.
The oil-gas flow monitor is provided with an alarm and a liquid crystal display panel.
And an air pressure gauge, an air storage tank and a pressure relay are arranged on an air supply pipeline between the air compressor and the oil-gas mixing block.
And a PLC electric control system is arranged in the electric cabinet and is provided with a liquid crystal operation panel.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model realizes the recycling of the lubricating oil by arranging the filter on the oil supply and air supply pipeline to purify the lubricating oil and the working lubricating oil flows back to the hydraulic oil tank again, thereby saving the consumption of the lubricating oil, improving the utilization rate of the lubricating oil, reducing the environmental pollution, Zero emission is achieved.
Drawings
FIG. 1 is a schematic diagram of an oil-gas lubrication system of a rolling mill with an automatic monitoring and control device according to an embodiment of the utility model.
Reference numerals shown in the drawings: 1. an oil supply device; 2. a hydraulic oil tank; 3. a hydraulic oil pump; 4. a pressure relief valve; 5. a first check valve; 6. a first shut-off valve; 7. an oil filter; 8. a first solenoid valve; 9. a first pressure reducing valve; 10. an oil pressure gauge; 11. an electric cabinet; 12. a gas supply device; 13. an air compressor; 14. a gas storage tank; 15. a progressive distributor; 16. a pressure relay; 17. an oil-gas mixing block; 18. an oil and gas flow monitor; 19. a flow regulating valve, 20 and a gas pressure gauge; 21 a second one-way valve; 22. a second stop valve; 23. a gas filter; 24. a second solenoid valve; 25. a second pressure reducing valve.
Detailed Description
The utility model is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
As shown in figure 1, the rolling mill oil-gas lubrication system with the automatic monitoring and control device comprises an oil supply device 1, an air supply device 12, a progressive distributor 15 and an oil-gas mixing block 17, wherein the oil supply device 1 comprises a hydraulic oil tank 2 and a hydraulic oil pump 3, the hydraulic oil tank 2 is a stainless steel square tank which has high strength, is not easy to deform and corrode and cannot pollute oil, the hydraulic oil in the tank is shell-brand pressure-resistant gear oil, the hydraulic oil pump 3 is a quantitative gear pump, and the gear pump works according to a PLC control program, more exactly works intermittently, namely starts at intervals, enters a pause period after working for one stroke, and is circulated repeatedly in such a way, so that the rolling mill oil-gas lubrication system has the characteristics of low energy consumption, energy conservation and environmental protection. The air supply device 12 comprises an air compressor 13 and an air storage tank 14, wherein the air compressor 13 is a piston air compressor capable of continuously providing stable compressed air for an air path, the air storage tank is provided with a pressure safety valve, the pressure in the whole air path can be stabilized between 0.3MPa and 0.4MPa, and a first check valve 5, a first stop valve 6, an oil filter 7, a first electromagnetic valve 8 and a first pressure reducing valve 9 are sequentially arranged between the hydraulic oil pump 3 and the progressive distributor 15; the first check valve 5, the first stop valve 6, the oil filter 7, the first electromagnetic valve 8 and the first pressure reducing valve 9 are connected in sequence through steel pipes, wherein the first check valve 5 can ensure unidirectional flow of oil, the first stop valve 6 needs to be closed to prevent oil from overflowing caused by misoperation when a rolling mill is overhauled, the first pressure reducing valve 9 plays a role in adjusting and stabilizing oil pressure of an oil way, the progressive distributor 15 is connected with the oil-gas mixing block 17 through a multi-way output pipeline, and a second check valve 21, a second stop valve 22, an air filter 23, a second electromagnetic valve 24 and a second pressure reducing valve 25 are sequentially arranged between the air compressor 13 and the oil-gas mixing block 17; the second one-way valve 21, the second stop valve 22, the air filter 23, the second electromagnetic valve 24 and the second pressure reducing valve 25 are connected by aluminum plastic pipes, wherein compressed air and hydraulic oil are mixed in the oil-air mixing block 17, single-phase fluid hydraulic oil and single-phase gas compressed air are mixed to form two-phase turbulent oil-air mixed flow, oil is not atomized and only oil drops are formed under the state, the oil-air mixing block 17 is connected with each lubricating point of a working roller of the rolling mill by a multi-way output pipeline, the two-phase oil-air mixed flow is injected to the lubricating points under the pushing of the compressed air, an air liquid film is formed between a kinematic pair to separate two friction surfaces which move relatively, simultaneously, a large amount of friction heat can be taken away by the flowing oil gas, the cooling effect is achieved on the friction pair, an oil-gas flow monitor 18 and a flow regulating valve 19 are arranged between the output pipeline of the oil-air mixing block 17 and each lubricating point of the working roller of the rolling mill, when the oil gas flow is too large or too small, the PLC electric control system can send an instruction to control the flow regulating valve 19 to act, so that the oil gas flow reaches a reasonable value again. Lubricating oil after the work of each lubricating point department of rolling mill working roll flows into the abandonment fluid collecting box through the pipeline, hydraulic oil pump 3, air compressor 13, oil gas flow monitor 18, flow control valve 19, first solenoid valve 8 second solenoid valve 24 all are connected with electric cabinet 11 electricity.
An oil pressure gauge 10 and a pressure safety valve 4 are arranged on an oil supply pipeline between the hydraulic oil pump 3 and the progressive distributor 15, and the oil pressure gauge 10 displays the pressure in an oil way, so that observation is facilitated.
The oil gas flow monitor 18 has an alarm and a liquid crystal display panel.
And an air pressure gauge 20, an air storage tank 14 and a pressure relay 16 are arranged on an air supply pipeline between the air compressor 13 and the oil-gas mixing block 17, and the air pressure gauge 20 displays the pressure in the air pipeline, so that the observation is facilitated.
The electric cabinet 11 is internally provided with a PLC electric control system and is provided with a liquid crystal operation panel, the electric control system is constructed by adopting S7 series PLC of SIEMENS, the electric control system is an SPS system which can be programmed at will, the monitoring function of the whole system is very complete, and the oil pressure, the compressed air pressure, the oil flow and the like can be monitored.
The working process of the embodiment is as follows:
according to the connection relation, after the connection is finished, the hydraulic pump 3, the air compressor 13, the first electromagnetic valve 8, the second electromagnetic valve 24, the oil-gas flow monitor 18 and the flow regulating valve 19 are connected to a PLC electrical control system, the PLC electrical control system controls the opening and closing of the hydraulic pump 3, the air compressor 13, the first electromagnetic valve 8, the second electromagnetic valve 24, the oil-gas flow monitor 18 and the flow regulating valve 19, the first stop valve 6 and the second stop valve 22 are manually opened, the PLC electrical control system controls the starting of the hydraulic pump 3 and the air compressor 13, the first electromagnetic valve 8, the second electromagnetic valve 24, the oil-gas flow monitor 18 and the flow regulating valve 19 are all in an electric connection state, lubricating oil enters the oil-gas mixing block 17 through the first one-way valve 5, the first stop valve 6, the oil filter 7, the first electromagnetic valve 8, the first reducing valve 9 and the progressive distributor 15, compressed air is connected to an oil-gas mixing block 17 through an air storage tank 14, a second check valve 21, a second stop valve 22, an air filter 23, a second electromagnetic valve 24 and a second reducing valve 25, lubricating oil and the compressed air are mixed in the oil-gas mixing block 17, the lubricating oil is sent to bearing seat lubricating points such as a rolling mill working roll, a middle roll and a vertical roll through a flow regulating valve 19 on a multi-path output pipeline of the oil-gas mixing block 17 by the compressed air, an oil-gas flow monitor 18 is connected with the output pipeline to monitor and display real-time oil-gas flow conditions, the working lubricating oil flows back to a hydraulic oil tank 2, the lubricating oil can be supplied to the lubricating points at regular time and fixed quantity through a PLC electric control system program, flow monitoring is carried out on each lubricating point, an alarm on the oil-gas flow monitor can give an alarm prompt when flow is abnormal, and meanwhile, the rolling mill can be stopped by a control program in the PLC.
In conclusion, the oil-gas lubrication system controls the oil-gas flow monitor and the flow regulating valve through the PLC electric control system in the electric control box, the electric control box serves as a main control unit, the oil-gas flow monitor and the flow regulating valve serve as execution components, and the oil-gas flow monitor and the flow regulating valve are controlled through a PLC electric control system program, so that the supply of quantitative lubricating oil during the positioning of lubricating points and the flow monitoring and regulation of the lubricating points are realized.
Claims (5)
1. The utility model provides a rolling mill oil-gas lubrication system with automatic monitoring and controlling means, includes oil supply unit (1), air feeder (12), progressive distributor (15), oil-gas mixing block (17), its characterized in that: oil supply unit (1) includes hydraulic tank (2), hydraulic oil pump (3), air feeder (12) include air compressor (13), gas holder (14), hydraulic oil pump (3) and advance and set gradually first check valve (5), first check valve (6), oil filter (7), first solenoid valve (8), first relief pressure valve (9) between distributor (15) one by one, advance distributor (15) one by one and be connected with oil-gas mixture block (17) through multiplexed output pipeline, set gradually second check valve (21), second check valve (22), air filter (23), second solenoid valve (24), second relief pressure valve (25) between air compressor (13) and oil-gas mixture block (17), oil-gas mixture block (17) link to each other with each lubrication point of rolling mill working roll through multiplexed output pipeline, set up oil-gas flow monitor (18) and oil-gas flow monitor (18) between each lubrication point of oil-gas mixture block (17) output pipeline and rolling mill working roll Flow control valve (19), the lubricating oil after each lubricated punishment department work of rolling mill working roll flows into waste fluid collecting box through the pipeline, hydraulic oil pump (3), air compressor (13), oil gas flow monitor (18), flow control valve (19), first solenoid valve (8), second solenoid valve (24) all are connected with electric cabinet (11) electricity.
2. The rolling mill oil-gas lubrication system with automatic monitoring and control device of claim 1, wherein: and an oil pressure gauge (10) and a pressure safety valve (4) are arranged on an oil supply pipeline between the hydraulic oil pump (3) and the progressive distributor (15).
3. The rolling mill oil-gas lubrication system with automatic monitoring and control device of claim 1, wherein: the oil gas flow monitor (18) is provided with an alarm and a liquid crystal display panel.
4. The rolling mill oil-gas lubrication system with automatic monitoring and control device of claim 1, wherein: and an air pressure gauge (20), an air storage tank (14) and a pressure relay (16) are arranged on an air supply pipeline between the air compressor (13) and the oil-gas mixing block (17).
5. The rolling mill oil-gas lubrication system with automatic monitoring and control device of claim 1, wherein: a PLC electric control system is arranged in the electric cabinet (11) and is provided with a liquid crystal operation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679740.4U CN216441383U (en) | 2021-07-22 | 2021-07-22 | Rolling mill oil-gas lubrication system with automatic monitoring and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679740.4U CN216441383U (en) | 2021-07-22 | 2021-07-22 | Rolling mill oil-gas lubrication system with automatic monitoring and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216441383U true CN216441383U (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121679740.4U Active CN216441383U (en) | 2021-07-22 | 2021-07-22 | Rolling mill oil-gas lubrication system with automatic monitoring and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216441383U (en) |
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2021
- 2021-07-22 CN CN202121679740.4U patent/CN216441383U/en active Active
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