CN108518576B - Oil-break protection device and protection method for lubrication system of heavy-duty mechanical equipment - Google Patents
Oil-break protection device and protection method for lubrication system of heavy-duty mechanical equipment Download PDFInfo
- Publication number
- CN108518576B CN108518576B CN201810490914.9A CN201810490914A CN108518576B CN 108518576 B CN108518576 B CN 108518576B CN 201810490914 A CN201810490914 A CN 201810490914A CN 108518576 B CN108518576 B CN 108518576B
- Authority
- CN
- China
- Prior art keywords
- oil
- heavy
- mechanical equipment
- flowmeter
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005461 lubrication Methods 0.000 title abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 68
- 239000010687 lubricating oil Substances 0.000 claims abstract description 20
- 230000000007 visual effect Effects 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P7/00—Emergency devices preventing damage to a machine or apparatus
- F16P7/02—Emergency devices preventing damage to a machine or apparatus by causing the machine to stop on the occurrence of dangerous conditions therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2230/00—Signal processing
- F16N2230/02—Microprocessor; Microcomputer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
- F16N2260/02—Indicating
- F16N2260/05—Oil flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
- F16N2260/02—Indicating
- F16N2260/12—Indicating using warning lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
- F16N2260/02—Indicating
- F16N2260/14—Indicating using sound
Abstract
The invention discloses an oil-break protection device and method for a lubrication system of heavy-duty mechanical equipment, and belongs to the field of mining mechanical equipment. The device comprises an oil pump, wherein the oil pump is connected with a pressure controller through an oil pipe, and the pressure controller is connected with a first bearing and a second bearing of heavy-duty mechanical equipment through a first flowmeter and a second flowmeter respectively through the oil pipe; the pressure controller, the first flowmeter and the second flowmeter are respectively and electrically connected with the PLC controller through wires, and the PLC controller is respectively and electrically connected with the programmable display, the audible and visual alarm and the relay through wires. The device uses the flow of the rotameter as the basis of whether the lubricating oil supply is normal or not, and alarms and performs protection action when the oil quantity is abnormal through the PLC control program, so that the occurrence of bearing bush accidents caused by oil interruption of the bearing of heavy-duty mechanical equipment is avoided, the automation level of a control system of the device is improved on the basis of effectively guaranteeing the operation safety performance of the heavy-duty mechanical equipment, and the production operation cost is reduced.
Description
Technical Field
The invention belongs to the field of mining machinery equipment, and particularly relates to an oil-break protection device of a lubricating system of heavy-duty machinery equipment and a method for protecting oil-break by using the same.
Background
Lubricating oil is an important cooling lubricating medium for large heavy-duty mechanical equipment and is critical to the safe operation of the equipment. Taking a ball mill as an example of a main mineral separation device: the lubricating positions of the front bearing and the rear bearing of the ball mill can not be provided with an oil storage tank, and only lubricating oil supplied by an oil pump can be used for circulating lubrication. The lubrication station system is the "heart" of the apparatus, and the magnitude of the lubricant flow directly reflects the operating conditions of the oil station. In general, a lubrication station is composed of 1 high-pressure oil supply system, 1 low-pressure oil supply system, and 1 low-pressure circulation cooling system. The working principle is that the motor drives the oil pump to convey the oil in the oil tank to the bearing through the pipeline system, and then the oil flows back to the oil tank through the oil return pipeline and the filter, thereby achieving the purposes of lubrication and cooling. When the ball mill lubricating system is designed, an oil pump in a lubricating station and a circuit system for controlling operation are electrically interlocked through a pressure transmitter, namely, when the pressure of the pressure transmitter is lower than a set pressure, the ball mill stops operating, but in the actual working process, the following phenomena often occur: when the oil pump works normally, the oil quantity in the bearing bush is reduced or the oil is not contained due to the blockage of the oil supply pipeline or the misoperation of the control valve, but the displayed oil pressure is not reduced but is increased; or the condition that one bearing lacks oil and the other bearing has overlarge flow rate occurs, but the oil pressure is normal from the display of the pressure gauge, and the lubrication system operates normally. Therefore, the loss of important data in the monitoring process of the lubrication system can cause the burning loss accident of the ball mill bearing bush, thereby causing shutdown and abnormal fluctuation of the product quality of the whole production system.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide the oil-break protection device for the lubricating system of the heavy-duty mechanical equipment, which is safe, reliable, simple, effective and capable of realizing automatic control.
It is another object of the present invention to provide a method for fuel cut protection using the above system.
The invention aims at realizing the following technical scheme: the oil-break protection device of the lubrication system of the heavy-duty mechanical equipment comprises an oil pump, wherein the oil pump is connected with a pressure controller through an oil pipe, and the pressure controller is connected with a first bearing and a second bearing of the heavy-duty mechanical equipment through a first flowmeter and a second flowmeter respectively through the oil pipe; the pressure controller, the first flowmeter and the second flowmeter are respectively and electrically connected with the PLC controller through wires, and the PLC controller is respectively and electrically connected with the programmable display, the audible and visual alarm and the relay through wires.
The first flowmeter and the second flowmeter are both rotameters, and the rotameter is simple in structure and low in pressure loss, and is convenient for accurately measuring the oil flow rate flowing through the oil pipe in the vertical trend from bottom to top.
The oil pump comprises a first oil pump and a second oil pump, the first oil pump and the second oil pump are respectively connected with the pressure controller through oil pipes, and the first oil pump and the second oil pump are standby and pressure compensated.
The method for protecting the oil break of the lubrication system of the heavy-duty mechanical equipment by utilizing the system comprises the following steps: according to the operation parameter requirements of the heavy-duty mechanical equipment and the oil circulation condition of the lubricating oil station, respectively setting warning values and lower limit values of the lubricating oil flows of the first bearing and the second bearing of the heavy-duty mechanical equipment through a programmable display, and programming a lubricating oil flow control program of a PLC (programmable logic controller): on the basis that the oil pressure of the oil pump meets the operation condition, when the flow rate of the lubricating oil is lower than a warning value, the PLC outputs an oil quantity warning alarm signal, and the audible and visual alarm intermittently gives an alarm; if the flow is lower than the lower limit value, the PLC outputs a lubricating oil cut-off alarm signal through the control valve, and sends a stopping instruction to the relay, the audible and visual alarm sounds to alarm for a long time, and the relay controls the engine to enable the heavy-duty mechanical equipment to execute stopping operation.
The oil-break protection device disclosed by the invention takes the flow of the rotor flowmeter as the final basis of whether the lubricating oil supply is normal or not in the operation process of the heavy-duty mechanical equipment, alarms and performs protection actions when the oil quantity is abnormal in the operation process of the heavy-duty mechanical equipment through a PLC control program, and ensures that a lubricating system of the heavy-duty mechanical equipment is safe, stable and reliable, so that the occurrence of bearing bush burning accidents caused by oil-break of a bearing of the heavy-duty mechanical equipment is avoided, the automation level of a control system of the heavy-duty mechanical equipment is improved on the basis of effectively ensuring the operation safety performance of the heavy-duty mechanical equipment, and the production operation cost is reduced. The lubricating system oil-break protection device is suitable for controlling the oil-break protection of the lubricating oil of the large-scale heavy-duty mechanical equipment with fixed value requirements on related parameters such as pressure or flow of a conveying medium.
Drawings
Fig. 1 is a schematic structural diagram of a lubrication system oil break protection device of a ball mill according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the oil break protection method of the lubrication system of the ball mill according to the present invention;
reference numerals: 1. a first oil pump; 2. a second oil pump; 3. a pressure controller; 4. a first flowmeter; 5. a second flowmeter; 6. a PLC controller; 7. a programmable display; 8. an audible and visual alarm; 8. an oil pipe; 10. a wire; 11 a first bearing; 12. a second bearing; 13. and a relay.
Detailed Description
The oil-break protection device and the protection method for the lubrication system of the heavy-duty mechanical equipment are further described in detail below by taking a ball mill as an example and referring to the attached drawings.
As shown in fig. 1-2, the oil-break protection device of the ball mill lubrication system comprises a first oil pump 1 and a second oil pump 2 which are standby and pressure compensated, wherein the first oil pump 1 and the second oil pump 2 are respectively connected with a pressure controller 3 through an oil pipe 8, and the pressure controller 3 is respectively connected with a first bearing 11 and a second bearing 12 of the ball mill through the oil pipe 8 via a first flowmeter 4 and a second flowmeter 5; the pressure controller 3, the first flowmeter 4 and the second flowmeter 5 are respectively and electrically connected with the PLC controller 6 through wires 10, and the PLC controller 6 is respectively and electrically connected with the programmable display 7, the audible and visual alarm 8 and the relay 13 through wires 10; the first flowmeter 4 and the second flowmeter 5 are both rotameters.
When the intelligent ball mill is used, according to the running parameter requirements of the ball mill and the oil circulation condition of the lubricating oil station, the warning value of the lubricating oil flow of the left bearing and the right bearing of the ball mill is set to 3500 mL/h through a programmable display 7, and the lower limit value is set to 2800 mL/h; the first oil pump 1 or the second oil pump 2 operates normally, the oil pressure is detected by the pressure controller 3, if P is smaller than 0.1MP, the PLC controller 6 sends out a stopping instruction after receiving the signal, and the ball mill stops operating; if P is more than or equal to 0.1MP, the ball mill normally operates. When the flow value of the first flowmeter 4 or the second flowmeter 5 is higher than or equal to the warning value, the ball mill normally operates; when the flow value of the first flowmeter 4 or the second flowmeter 5 is lower than the warning value, the PLC controller 6 outputs an oil quantity warning alarm signal, the audible and visual alarm 8 intermittently alarms, and the programmable display 7 flashes to display warning information: "left (right) bearing lubricating oil flow is low, please adjust-! "; when the flow value of the first flowmeter 4 or the second flowmeter 5 is lower than the lower limit value, the PLC 6 outputs a lubricating oil cut-off alarm signal and sends a stopping instruction to the relay 13, the audible and visual alarm 8 sounds to alarm, the relay 13 controls the engine to enable the ball mill to execute stopping operation, and the programmable display 7 flashes to display alarm information: "left (right) bearing lubricating oil flow is below lower limit, stopped-! ".
Claims (1)
1. The oil-break protection device comprises an oil pump, wherein the oil pump is connected with a pressure controller through an oil pipe, and the pressure controller is connected with a first bearing and a second bearing of heavy-duty mechanical equipment through a first flowmeter and a second flowmeter respectively through the oil pipe; the pressure controller, the first flowmeter and the second flowmeter are respectively and electrically connected with the PLC controller through wires, and the PLC controller is respectively and electrically connected with the programmable display, the audible and visual alarm and the relay through wires; the method is characterized in that:
according to the operation parameter requirements of the heavy-duty mechanical equipment and the oil circulation condition of the lubricating oil station, the warning value and the lower limit value of the lubricating oil flow of the first bearing and the second bearing of the heavy-duty mechanical equipment are set through a programmable display, and a lubricating oil flow control program of a PLC is compiled: on the basis that the oil pressure of the oil pump meets the operation condition, when the flow rate of the lubricating oil is lower than a warning value, the PLC outputs an oil quantity warning alarm signal, and the audible and visual alarm intermittently gives an alarm; if the flow is lower than the lower limit value, the PLC outputs a lubricating oil cut-off alarm signal, and sends a stopping instruction to the relay, the audible and visual alarm sounds to alarm, and the relay controls the engine to enable the heavy-duty mechanical equipment to execute stopping operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810490914.9A CN108518576B (en) | 2018-05-21 | 2018-05-21 | Oil-break protection device and protection method for lubrication system of heavy-duty mechanical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810490914.9A CN108518576B (en) | 2018-05-21 | 2018-05-21 | Oil-break protection device and protection method for lubrication system of heavy-duty mechanical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108518576A CN108518576A (en) | 2018-09-11 |
| CN108518576B true CN108518576B (en) | 2023-08-25 |
Family
ID=63426620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810490914.9A Active CN108518576B (en) | 2018-05-21 | 2018-05-21 | Oil-break protection device and protection method for lubrication system of heavy-duty mechanical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518576B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188983A (en) * | 2020-03-25 | 2020-05-22 | 云南华联锌铟股份有限公司 | Safety interlocking device of air blower |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000042795A (en) * | 1998-07-30 | 2000-02-15 | Amada Co Ltd | Hydraulic press |
| CN201209531Y (en) * | 2008-04-25 | 2009-03-18 | 济南重工股份有限公司 | Electric control system for high and low voltage thin oil station |
| CN201496748U (en) * | 2009-08-26 | 2010-06-02 | 飞翼集团有限公司 | Intelligent control system of lubricating oil station |
| CN202012377U (en) * | 2011-04-06 | 2011-10-19 | 宁波宝虹信息技术有限公司 | Fault monitoring device for lubricating pipeline |
| CN102698862A (en) * | 2012-05-31 | 2012-10-03 | 中冶南方工程技术有限公司 | Lubricating protection control method for powder preparation intermediate-speed mill of blast furnace |
| CN203686083U (en) * | 2013-12-23 | 2014-07-02 | 西安睿通冶金科技有限公司 | Lubricating automatic protection system for pelletizer transmission system |
| CN203731068U (en) * | 2013-12-24 | 2014-07-23 | 济南重工股份有限公司 | Lubrication oil station with accurate oil supply state warning function |
| CN204083756U (en) * | 2014-09-10 | 2015-01-07 | 河北钢铁股份有限公司邯郸分公司 | A kind of disk feeder pressure lubrication detection alarm stopping device |
| CN208348922U (en) * | 2018-05-21 | 2019-01-08 | 金川集团股份有限公司 | A kind of heavy loading machinery equipment lubricating system oil cut-off protection device |
-
2018
- 2018-05-21 CN CN201810490914.9A patent/CN108518576B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000042795A (en) * | 1998-07-30 | 2000-02-15 | Amada Co Ltd | Hydraulic press |
| CN201209531Y (en) * | 2008-04-25 | 2009-03-18 | 济南重工股份有限公司 | Electric control system for high and low voltage thin oil station |
| CN201496748U (en) * | 2009-08-26 | 2010-06-02 | 飞翼集团有限公司 | Intelligent control system of lubricating oil station |
| CN202012377U (en) * | 2011-04-06 | 2011-10-19 | 宁波宝虹信息技术有限公司 | Fault monitoring device for lubricating pipeline |
| CN102698862A (en) * | 2012-05-31 | 2012-10-03 | 中冶南方工程技术有限公司 | Lubricating protection control method for powder preparation intermediate-speed mill of blast furnace |
| CN203686083U (en) * | 2013-12-23 | 2014-07-02 | 西安睿通冶金科技有限公司 | Lubricating automatic protection system for pelletizer transmission system |
| CN203731068U (en) * | 2013-12-24 | 2014-07-23 | 济南重工股份有限公司 | Lubrication oil station with accurate oil supply state warning function |
| CN204083756U (en) * | 2014-09-10 | 2015-01-07 | 河北钢铁股份有限公司邯郸分公司 | A kind of disk feeder pressure lubrication detection alarm stopping device |
| CN208348922U (en) * | 2018-05-21 | 2019-01-08 | 金川集团股份有限公司 | A kind of heavy loading machinery equipment lubricating system oil cut-off protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108518576A (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109099303A (en) | A kind of intelligence thin oil lubricating device monitoring system and operating method | |
| CN108518576B (en) | Oil-break protection device and protection method for lubrication system of heavy-duty mechanical equipment | |
| CN103551917A (en) | Main shaft gear cooling protection device of numerical control gantry machine tool | |
| CN112343838A (en) | Automatic control method and device for fan hydraulic coupler | |
| CN204284082U (en) | A kind of leak detection system of hydraulic station | |
| CN111174075A (en) | Centralized lubrication control system and method and engineering vehicle | |
| CN205348288U (en) | Control system is hauled oneself willingly into fully to water supply pump package | |
| CN208348922U (en) | A kind of heavy loading machinery equipment lubricating system oil cut-off protection device | |
| CN203847678U (en) | Gear box thin oil lubricating alarming control device | |
| CN104199439A (en) | Detection method of external faults of industrial control system | |
| CN105370610A (en) | Gas pressuring machine monitoring and protection system | |
| CN202531349U (en) | PLC (programmable logic controller)-based hydraulic generator protection device | |
| CN204639795U (en) | For the multi-stage liquid level detection device of Digit Control Machine Tool | |
| CN203731068U (en) | Lubrication oil station with accurate oil supply state warning function | |
| CN103968052A (en) | Thin-oil lubrication warning controlling device for gear box | |
| CN204477704U (en) | A kind of thermal power station modulating valve real-time online Cavitation detection early warning system | |
| CN107942954B (en) | Oil station control system shared by squeezer and double-roller feeder reduction gearbox | |
| CN110886693B (en) | Method for preventing error operation of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof | |
| CN113482730A (en) | Oil supply device, control method and storage medium | |
| CN203322439U (en) | Quick cutting-off control device of electrically operated valve | |
| CN203133600U (en) | Marine engine room monitoring device | |
| CN208578604U (en) | Engine decomposes the protective device of frictional work test main oil gallery engine oil pressure rapid drawdown | |
| CN202707453U (en) | Water-level controller | |
| CN203217330U (en) | Automatic abnormal-state control device for metal band sawing machine | |
| CN201543804U (en) | Continuous casting machine tundish hydraulic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240223 Address after: 737100 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |