CN102644837A - Grease-spraying lubrication system for racks in hot rolling production line for seamless steel pipes - Google Patents
Grease-spraying lubrication system for racks in hot rolling production line for seamless steel pipes Download PDFInfo
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- CN102644837A CN102644837A CN2012101260100A CN201210126010A CN102644837A CN 102644837 A CN102644837 A CN 102644837A CN 2012101260100 A CN2012101260100 A CN 2012101260100A CN 201210126010 A CN201210126010 A CN 201210126010A CN 102644837 A CN102644837 A CN 102644837A
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Abstract
The invention relates to a grease-spraying lubrication system for racks in a hot rolling production line for seamless steel pipes. A lubricating grease barrel is conveyed to a lubricating grease stackable distribution valve through a pipeline by the aid of a high-pressure pneumatic plunger pump inserted inside the lubricating grease barrel, the lubricating grease stackable distribution valve is connected with a spraying gun through a lubricating grease electrical-control pneumatic valve, the high-pressure pneumatic plunger pump is driven by a compressed air source through a compressed air valve, the compressed air source is further connected with an air stackable distribution valve through the compressed air valve, and the air stackable distribution valve is communicated with a grease spraying switch and a nozzle of the spraying nozzle respectively through a switch electrical-control pneumatic valve and a spraying electrical-control pneumatic valve. During use of the grease-spraying lubrication system for the racks in the hot rolling production line for the seamless steel pipes, a directionally quantitative spray coating manner is utilized so that protective films of lubricating surfaces can be formed within a short time, and can be resupplied once being consumed, pollution to lubricating environments due to the spill lubricating grease in great quantity is avoided, and usage of the lubricating grease is saved by 50% around.
Description
Technical field
The invention belongs to field of metallurgy, relate to the tube rolling plug rack drives of seamless steel pipe hot-rolling production line, especially a kind of seamless steel pipe hot-rolling production line tooth bar sprays the grease lubrication system.
Background technique
In the seamless steel pipe hot-rolling production line; It is very professional and important that the face of gear that drives the big tooth bar operation of plug lubricates; Traditional approach is with oiling agent---butter is added on the lubricated face with the mode of smearing, because butter lubricating grease viscosity is big, lubricating grease supplies to comparatively difficulty of lubricating point; The lubricating film that in time replenishes disappearance is very difficult, can only adopt the manual work mode of smearing to add.Therefore, traditional oiling agent smearing method makes the amount of being coated with of lubricated face lubricating grease bigger, and butter lubricating grease is extruded outside the rubbing surface during gear interlock, causes lubricating grease to waste in a large number.The timing that is developed afterwards, quantitatively extrude oiling agent to some point of lubricated face, though guaranteed the replenishing of lubricating grease of lubricated face, because extrusion capacity is still bigger, the while can not guarantee that whole lubricated face smoothens and in right amount, waste lubricating grease and reach about 50%.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology; A kind of face of gear spray grease lubrication system of seamless steel pipe hot-rolling production line rack drives is provided; This orientable, quantitative atomizing spraying of spray grease lubrication system; Overcome the disappearance that former lubricating system can not the continuous supplementation lubricating film, satisfied evenly replenishing of lubricating film simultaneously.
The objective of the invention is to realize like this:
A kind of seamless steel pipe hot-rolling production line tooth bar sprays the grease lubrication system; Comprise grease pail, high-pressure pneumatic plunger pump, source of compressed air, PLC programmable device, the folded formula distributing valve of lubricating grease, the folded formula distributing valve of gas and atomizing gun; It is characterized in that: said grease pail is transported to the folded formula distributing valve of lubricating grease through the high-pressure pneumatic plunger pump of pegging graft within it through pipeline, and the folded formula distributing valve of lubricating grease connects atomizing gun through the lubricating grease electropneumatic valve; The high-pressure pneumatic plunger pump is driven through compressed air valve by source of compressed air, on the pipeline before high-pressure pneumatic plunger pump and the compressed air valve, a reduction valve is installed also; Source of compressed air also is communicated with the folded formula distributing valve of gas through compressed air valve; The folded formula distributing valve of this gas is communicated with the spray fat switch and the nozzle of atomizing gun respectively through switch electropneumatic valve and spraying electropneumatic valve, on the tracheae of the folded formula distributing valve front end of gas, a reduction valve is installed also.
And, an electric heating thermostat is installed on the pipeline between lubricating grease electropneumatic valve and the atomizing gun.
And said compressed air valve, each electropneumatic valve and pressure opening and closing valve are controlled by the PLC programmable device.
And, an accumulator also is installed on the pipeline of high-pressure pneumatic plunger pump rear end.
Advantage of the present invention and good effect are:
1, native system adopts directed, the quantitative atomizing spraying mode of filming; The protective film of lubricated face can be formed rapidly; The protective film that guarantees lubricated face consumes additional constantly constantly; Avoided a large amount of lubricating grease to overflow the pollution that lubricated face causes lubricated environment, the use amount nearly 50% of having practiced thrift lubricating grease.
2, native system adopts withstand voltage atomizing gun; Can realize the lubricating grease atomizing functions; The lubrication film thickness uniformity that assurance need be lubricated face improves, and in time closes lubricating grease through PLC control and supplies with, and has solved the natural pressure release loss of lubricating grease in the pipeline behind the closed control valve.
3, native system is provided with the electric heating thermostat on the lubricating grease pipeline before atomizing gun, and the temperature of lubricating grease is controlled in 75 ± 2 ℃ of scopes, and the viscosity of lubricating grease is reduced, and can reach jet atomization effect preferably.
4, the restraint tooth bar of native system is lubricated lubricated for the open type flank of tooth, adopts spray fat atomizing type, satisfies directed, quantitative atomizing spraying requirement, can form rapidly with the protective film that reaches lubricated face, and guarantee that the lubricating film of the flank of tooth consumes constantly, replenishes constantly.Simultaneously, carry branch road to adopt flux monitoring system, can in time find the obstruction of branch road, give alarm signal at lubricating grease.
Description of drawings
Fig. 1 is a system architecture schematic representation of the present invention;
Fig. 2 is a working state structure schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and through specific embodiment the present invention is made further detailed description, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Present embodiment is lubricated with φ 180mm tandem rolling seamless steel pipe hot-rolling production line engineering restraint tooth bar to be that example is described.
A kind of seamless steel pipe hot-rolling production line tooth bar sprays the grease lubrication system; Referring to Fig. 1; Comprise grease pail 19, high-pressure pneumatic plunger pump 18, source of compressed air 16, PLC programmable device 1, the folded formula distributing valve 4 of lubricating grease, the folded formula distributing valve 13 of gas and atomizing gun 8, grease pail is transported to the folded formula distributing valve of lubricating grease through the high-pressure pneumatic plunger pump of pegging graft within it through pipeline, and the folded formula distributing valve of lubricating grease connects atomizing gun through lubricating grease electropneumatic valve 6; One electric heating thermostat 7 also is installed on the pipeline of atomizing gun front end;,, improve the jet atomization effect of atomizing gun so that the temperature of the lubricating grease that sends is controlled in 75 ± 2 ℃ of scopes.The high-pressure pneumatic plunger pump is driven through compressed air valve 15 by source of compressed air; On the pipeline before high-pressure pneumatic plunger pump and the compressed air valve, a reduction valve 17 is installed also; To adjust compressed-air actuated pressure between 0.4-0.6Mpa; The setting pressure of the lubricating grease of control high-pressure pneumatic plunger pump outlet realizes extracting the lubricating grease in the grease pail out the conveying of boosting, and the outlet pressure of high-pressure pneumatic plunger pump is 50: 1 with the compressed air pressure ratio.
Also through the folded formula distributing valve of pipeline connection gas, the folded formula distributing valve of this gas can be set the pressurized air of different pressures to source of compressed air through compressed air valve.The folded formula distributing valve of gas is communicated with the spray fat switch and the nozzle of atomizing gun respectively through switch electropneumatic valve 9 and spraying electropneumatic valve 10; On the tracheae of the folded formula distributing valve front end of gas, a reduction valve 14 is installed also, the effect of this reduction valve is same as the reduction valve that the high-pressure pneumatic plunger pump is installed.
The switch electropneumatic valve of the lubricating grease electropneumatic valve of compressed air valve, the folded formula distributing valve of lubricating grease, the folded formula distributing valve of gas and spraying electropneumatic valve are controlled by the PLC programmable device.In addition, switch pressure opening and closing valve 12 and the atomisation pressure switch valve 11 installed of the pressure opening and closing valve 2 installed of high-pressure pneumatic plunger pump rear end pipeline, the pressure opening and closing valve 5 of the folded formula distributing valve of lubricating grease, the folded formula distributing valve two-way tracheae of gas also controlled by the PLC programmable device.
The fluctuation of the lubricating grease constant-voltage system pressure that delayed startup caused of air piston pump also is equipped with an accumulator 3 when starting for solving atomizing gun on the pipeline of high-pressure pneumatic plunger pump rear end, to realize the stable of pressure.
Because the viscosity and the temperature of lubricating grease have sizable relation, temperature high remperature grease viscosity descends, and viscosity is more little, and atomizing effect is good more.For this reason, the lubricating grease pipeline of spray gun front end is provided with an electric heating constant temperature device 7, and the temperature of lubricating grease is controlled in 75 ± 2 ℃ of scopes, improves the jet atomization effect of spray gun.
Parts that the present invention is not described in detail and device are existing technology.
The method that native system sprays fat is adopted in narration below; Referring to Fig. 2; The control tooth roller box is upper and lower respectively to have two actuation gears 20, the two-sided tooth bar 21 front and back synchronous operations therebetween of these two gear drive, and these tooth bar both sides are provided with roller and are supported on (existing technology on the guide rail; Do not illustrate), the lubricated employing atomizing gun spray lubrication of four gears and tooth bar face.
Atomizing gun position: apart from about actuation gear 20 flank of tooth 200mm;
Flank of tooth oil slick thickness: 8-10 μ m (5-6 by roughness doubly calculates);
Tooth bar each run oil film consumes thickness: 1-3 μ m.
Working principle of the present invention is:
Start compressed air valve; Constant voltage (0.4-0.6MPa) output pressurized air through reduction valve; Drive high-pressure pneumatic plunger pump (outlet pressure is 50: 1 with the compressed air pressure ratio) and will be stored in lubricating grease extraction in the bucket; Automatically control through the PLC programmable device through pressure transducer, realize that the constant voltage that the lubricating grease transporting system is set (generally is set at 15～25MPa) supplies.When pressure reached setup parameter, high-pressure pneumatic plunger pump pump trip was kept pressure constant state, realized the lubricating grease supplied with constant voltage of spray gun.
Pressurized air is through the folded formula distributing valve of the gas behind the reduction valve; Each branch road pressurized air of the certain pressure that produces mixes with the quantitative lubricating fat of spray gun; Spray by the spray gun high pressure then; Lubricating grease is dispersed into the droplet about 50 μ m by air-flow, and lubricating grease is realized atomizing, realizes the effect that gear surface evenly covers.Whenever, carry oil mass manual modulation valve and tolerance manual modulation valve to spray gun respectively, to realize the control of atomizing and lubricating grease emitted dose.
Spray gun is to adopt pressurized air to lubricating grease processings that atomize, and lubricating grease can be covered uniformly need the gear surface that lubricates.The startup of spray gun, stop signal being provided by the milling train computer; Through the PLC of system programmable device control, realize the electropneumatic valve of supplying lubricating grease electrically-controlled valve, control spray gun oil circuit threshold switch and the spraying electropneumatic valve that spray gun is used for gas atomization startup, stop.Wherein the injection cycle of spray gun can be set through the PLC programmable device, and every road lubricating grease emitted dose is set by the folded formula distributing valve of lubricating grease in advance, realizes native system unmanned, operation automatically.
The supply of spray gun lubricating grease adopts the folded formula distributing valve of lubricating grease to distribute supply, thereby can realize multiple spot atomizing requirement.The high-pressure pneumatic plunger pump can not in time start (delayed startup) when starting suddenly for solving spray gun; The huge fluctuation of the lubricating grease constant-voltage system pressure that causes; In pipeline, be added with accumulator; Realize that pressure slowly fluctuates, the scope of pressure surge in the air piston pump delayed startup process is dwindled, reach the stable effect of system pressure.
System's characteristics explanation:
Air piston pump is carried output quantity: 8000g/min (adjustable), and atomizing gun adopts the import atomizing gun, and spray smectic attitude is stable.The oil pump capacity of each atomizing gun can be carried out manual tune according to the actual use condition of equipment.Atomizing gun is the method that adopts the pressurized air atomizing, to the lubricating grease processing that atomizes, makes lubricating grease can cover gear surface uniformly.When the atomizing gun distance was lubricated face 200mm, the spraying swath width was 250mm.Cover for satisfying face of gear 370mm width requirement, each lubricating point configuration 2 is used atomizing gun side by side, to reach the face of gear width requirement of covering 370mm.
Automatic, manual two kinds of operator schemes that native system is divided into, man-machine dialog interface adopts touch screen.
The branch roads system of each oil circuit is monitored constantly, if any branch road pressure is undesired, reports to the police immediately.
The technical parameter of native system
Native system capital equipment technical parameter Schedule
Claims (4)
1. a seamless steel pipe hot-rolling production line tooth bar sprays the grease lubrication system; Comprise grease pail, high-pressure pneumatic plunger pump, source of compressed air, PLC programmable device, the folded formula distributing valve of lubricating grease, the folded formula distributing valve of gas and atomizing gun; It is characterized in that: said grease pail is transported to the folded formula distributing valve of lubricating grease through the high-pressure pneumatic plunger pump of pegging graft within it through pipeline, and the folded formula distributing valve of lubricating grease connects atomizing gun through the lubricating grease electropneumatic valve; The high-pressure pneumatic plunger pump is driven through compressed air valve by source of compressed air, on the pipeline before high-pressure pneumatic plunger pump and the compressed air valve, a reduction valve is installed also; Source of compressed air also is communicated with the folded formula distributing valve of gas through compressed air valve; The folded formula distributing valve of this gas is communicated with the spray fat switch and the nozzle of atomizing gun respectively through switch electropneumatic valve and spraying electropneumatic valve, on the tracheae of the folded formula distributing valve front end of gas, a reduction valve is installed also.
2. seamless steel pipe hot-rolling production line tooth bar according to claim 1 sprays the grease lubrication system, it is characterized in that: an electric heating thermostat is installed on the pipeline between lubricating grease electropneumatic valve and the atomizing gun.
3. seamless steel pipe hot-rolling production line tooth bar according to claim 1 sprays the grease lubrication system, and it is characterized in that: said compressed air valve, each electropneumatic valve and pressure opening and closing valve are controlled by the PLC programmable device.
4. seamless steel pipe hot-rolling production line tooth bar according to claim 1 sprays the grease lubrication system, it is characterized in that: an accumulator also is installed on the pipeline of high-pressure pneumatic plunger pump rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101260100A CN102644837A (en) | 2012-04-26 | 2012-04-26 | Grease-spraying lubrication system for racks in hot rolling production line for seamless steel pipes |
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| CN2012101260100A CN102644837A (en) | 2012-04-26 | 2012-04-26 | Grease-spraying lubrication system for racks in hot rolling production line for seamless steel pipes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062607A (en) * | 2012-12-14 | 2013-04-24 | 中山名创力电子有限公司 | Minimal quantity of lubricant control system using air to drive lubricant |
| CN103212658A (en) * | 2013-03-28 | 2013-07-24 | 韩丽华 | Automatic de-molding agent spraying system |
| CN104121460A (en) * | 2014-07-29 | 2014-10-29 | 豫北转向系统股份有限公司 | Rack greasing device for automobile steering device |
| CN106439460A (en) * | 2016-03-24 | 2017-02-22 | 北京中冶华润科技发展有限公司 | Anti-attrition lubricating system for locomotive wheel track |
| CN108019613A (en) * | 2016-11-02 | 2018-05-11 | 上海申通地铁集团有限公司 | Quantitative grease feeding apparatus |
| CN108361230A (en) * | 2018-03-30 | 2018-08-03 | 安徽工程大学 | It is a kind of pneumatic precisely intermittently for fat control system and its for fat method |
| CN112032286A (en) * | 2020-08-08 | 2020-12-04 | 华科五洲（天津）海洋工程有限公司 | Automatic rack oil brushing device for self-elevating platform and working mode of automatic rack oil brushing device |
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| CN202598081U (en) * | 2012-04-26 | 2012-12-12 | 天津市金昌海科工贸有限公司 | Rack grease spray lubricating system of seamless steel pipe hot rolling production line |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1426571B1 (en) * | 2002-11-28 | 2007-02-07 | Mitsubishi Heavy Industries, Ltd. | Cylinder lubricating apparatus |
| US20110120802A1 (en) * | 2009-11-26 | 2011-05-26 | Dropsa S.P.A. | Minimal lubrication device |
| CN201836626U (en) * | 2010-10-28 | 2011-05-18 | 陈振宇 | Intelligent oil lubrication system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062607A (en) * | 2012-12-14 | 2013-04-24 | 中山名创力电子有限公司 | Minimal quantity of lubricant control system using air to drive lubricant |
| CN103212658A (en) * | 2013-03-28 | 2013-07-24 | 韩丽华 | Automatic de-molding agent spraying system |
| CN104121460A (en) * | 2014-07-29 | 2014-10-29 | 豫北转向系统股份有限公司 | Rack greasing device for automobile steering device |
| CN106439460A (en) * | 2016-03-24 | 2017-02-22 | 北京中冶华润科技发展有限公司 | Anti-attrition lubricating system for locomotive wheel track |
| CN108019613A (en) * | 2016-11-02 | 2018-05-11 | 上海申通地铁集团有限公司 | Quantitative grease feeding apparatus |
| CN108361230A (en) * | 2018-03-30 | 2018-08-03 | 安徽工程大学 | It is a kind of pneumatic precisely intermittently for fat control system and its for fat method |
| CN112032286A (en) * | 2020-08-08 | 2020-12-04 | 华科五洲（天津）海洋工程有限公司 | Automatic rack oil brushing device for self-elevating platform and working mode of automatic rack oil brushing device |
| CN112032286B (en) * | 2020-08-08 | 2024-03-08 | 华科五洲（天津）海洋工程有限公司 | Automatic rack oil brushing device for self-elevating platform and working mode of automatic rack oil brushing device |
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Application publication date: 20120822 |