CN103133843B - Lubricating oil automatic purification and circulating feed system for double-roll tester - Google Patents
Lubricating oil automatic purification and circulating feed system for double-roll tester Download PDFInfo
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- CN103133843B CN103133843B CN201310074536.3A CN201310074536A CN103133843B CN 103133843 B CN103133843 B CN 103133843B CN 201310074536 A CN201310074536 A CN 201310074536A CN 103133843 B CN103133843 B CN 103133843B
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Abstract
The invention discloses a lubricating oil automatic purification and circulating feed system for a double-roll tester. The system comprises an oil storage tank, a purification oil tank and a double-roll device of the double-roll tester. The oil storage tank is connected with the double-roll device through an oil pump and an oil sprayer. A transparent oil removal cover is disposed on the double-roll device. An oil catcher is disposed below the double-roll device and connected with the purification oil tank through a sedimentation device, a self-priming pump and a multistage filter device. The purification oil tank is connected with the oil storage tank through a purification oil pump and a flowmeter. Processes of waste oil collecting, sedimentation purification, magnet absorption purification and multistage filter purification are used for purifying waste lubricating oil so as to obtain purified lubricating oil which satisfies the requirements of contact fatigue tests, the purified lubricating oil is put into test use again through a circulating device, and accordingly lubricating oil saving and lubricating oil circulating feed are achieved.
Description
Technical field
The present invention relates to a kind of relative rolling type testing machine lubricant oil self-purging and circulation supply system.
Background technique
The contact fatigue of component of machine lost efficacy refer to loaded surfacer under the load effect of long-term alternation, produce on surface or subsurface fatigue crack initiation and propogation and finally there is local fracture and the dynamic damage process that causes surfacing to be removed, be the main surface failure form of component of machine.
Relative rolling type contact fatigue test machine can simulate the rolling contact fatigue failure procedure under the linear contact lay states such as gear, roll, wheel track, is therefore widely used at evaluating material rolling contact fatigue aspect of performance.Domesticly have developed several relative rolling type contact fatigue test machines, comprise the JP-BD-1 for strength of gear teeth experimental study developed by eight units such as Harbin Institute of Technology and become slippage contact fatigue test machine, the JPM-1 type Contact-fatigue Wear Tester of Yichang testing machine factory Development and Production, Armoured Force Engineering Inst., PLA research and development RM-1 type contact fatigue/wear and tear competitive Lifetime Forecasting Test machine etc.
Regulation in GB 10622-89 " metallic material rolling contact fatigue-testing method ", needs in relative rolling type contact fatigue test to adopt the lubricant oil of suitable types to carry out sufficient lubrication to sample contacts position.
The lubricating system that current relative rolling type testing machine adopts mainly comprises disposable oil jet lubrication, circulation oil jet lubrication and flooding system lubrication etc.Disposable oil jet lubrication refers to that lubricant oil is under the effect of gravity or jet pressure, injects sample contacts position by lubricant oil, and waste oil is otherwise processed after collecting, and this kind method lubricant oil utilization efficiency is low, waste is larger.Circulation oil jet lubrication generally adopts Injection Pump etc. that lubricant oil is injected sample contacts position, implement the overlapping investment use through simple to leave standstill, after filtration treatment of the waste oil after lubrication, the major defect of this kind of method is that in the lubricant oil after processing, impurity content is higher, increase randomness and the uncertainty of experiment, affect contact fatigue experimental result.During flooding system lubrication, oil box is being placed to the mill side of rolling down, in below roller part floodlubrication oil, when below roller rotates in experiment, lubricant oil winding is entered contact position and realize lubrication, waste oil after lubrication directly instills oil box to be continued to use, and using after certain hour topping-up by regulation or change oil, in this kind of method lubricant oil, impurity content is higher, larger on the impact of experiment accuracy, there is obvious deficiency.
Because contact fatigue is a kind of typical accumulated damage process, usual experimental period is longer, has greatly increased the weight of the work load of experimenter.Therefore, can adopt to add accelerated life test that abrasive particle is accelerated factor and solve long problem experimental period, to add SiO
2the mode of particle is the most general.
At present, SiO is added in contact fatigue accelerated life test
2method be generally the SiO of certain mass mark
2particle adds in lubricant oil, tests after simple agitation mixing.This mode has following narrow limitation: due to can not Keep agitation, SiO
2particle can occur to reunite and precipitation in lubricant oil, causes SiO
2abrasive particle mass fraction in lubricant oil can not keep stable level, affects accelerated test effect; The abrasive particle produced in experiment is in addition mixed in lubricant oil, affects accelerated life test effect equally as dealt with improperly.
Summary of the invention
The technical issues that need to address of the present invention are just the defect overcoming prior art, a kind of relative rolling type testing machine lubricant oil self-purging and circulation supply system are provided, the flow process of its employing collection waste oil, sedimentation removal of impurities, magnet adsorption removal of impurities, multi-stage filtration purifying carries out impurity and purification process to waste lubricating oil, be met the purification lubricant oil of contact fatigue requirement of experiment, continue to drop into test through circulation means to use, achieve the object of saving lubricant oil and lubrication oil circulation supply.
For solving the problem, the present invention adopts following technological scheme:
The invention provides a kind of relative rolling type testing machine lubricant oil self-purging and circulation supply system, comprise the rolling fixture of fuel reserve tank, purification fuel tank and relative rolling type testing machine, described fuel reserve tank connects an oil nozzle by oil pump, described oil nozzle just to rolling fixture, lubricant oil injected rolling fixture lubricate; Described rolling fixture is provided with transparent oil removal cover, is provided with oil trap below rolling fixture, described oil trap is connected with purification fuel tank by sedimentation device and self-priming pump, Multistage filtering device; Described purification fuel tank is connected with fuel reserve tank by purification oil pump and flowmeter.
Described relative rolling type testing machine lubricant oil self-purging and circulation supply system are provided with abrasive particle powder feeder, and described abrasive particle powder feeder is connected with fuel reserve tank by flow dontroller.
A stirring apparatus is provided with in described fuel reserve tank.
Described stirring apparatus comprise motor and be connected with motor, the rabble goed deep in fuel reserve tank, described rabble is provided with agitator arm.
Described sedimentation device is provided with multiple strong magnet; Sewage draining exit is provided with bottom sedimentation device.
Described Multistage filtering device is provided with one deck 200 order, aperture is the wire netting of 74 μm and two-layer diatomite filtration sheet.
Described fuel reserve tank is provided with abrasive particle inlet, clean oil entrance and oil mass display apparatus.
Working procedure of the present invention is: the lubricant oil in fuel reserve tank flows out through outlet, under oil pump effect, between the roller being injected the rolling fixture of relative rolling type testing machine, lubricates the contact position of roller with the speed of 10 L/h by oil nozzle.Waste oil after lubrication flows into sedimentation device after oil trap is collected, and eliminate partial impurities through precipitation, the uniform four pieces of strong magnets in sedimentation device bottom, effectively can adsorb Ferromagnetic Impurities and particle etc., the waste oil after settlement treatment enters Multistage filtering device.After layer of metal net pre-filtering after filtration in device and two-layer diatomite filtration sheet filter, the solid impurities such as the abrasive particle in waste lubricating oil are removed completely substantially, again can drop into test and use.Lubricant oil after purification is deposited in purification fuel tank, extracts out through oil pump, is controlled to circulate to return in fuel reserve tank with constant rate of speed 10 L/h to continue to use by flowmeter.
The present invention adopt collect waste oil, sedimentation removal of impurities, magnet adsorption removal of impurities, multi-stage filtration purifying flow process impurity and purification process is carried out to waste lubricating oil, be met the purification lubricant oil of contact fatigue requirement of experiment, continue to drop into test through circulation means to use, achieve the object of saving lubricant oil and lubrication oil circulation supply.
For realizing to add SiO
2abrasive particle is the contact fatigue accelerated life test of accelerated factor, and the present invention adopts agitator arm to ensure to be added into SiO in fuel tank in the mode of some cycles circulation clockwise and anticlockwise in fuel reserve tank
2being uniformly distributed of abrasive particle, and prevent it from reuniting and sedimentation.
For ensureing that in lubricant oil, abrasive grain content is constant, the present invention adopts the flowmeter control unit time to enter the purification quality of lubrication oil of fuel reserve tank, and the unit of account time should supplement SiO based on this
2abrasive particle quality, controls its adding quantity by flow dontroller, ensures SiO in fuel reserve tank
2abrasive particle quality mark keeps constant substantially, ensures the reliable enforcement of accelerated life test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is fuel reserve tank structural representation of the present invention.
Fig. 3 is sedimentation device structural representation of the present invention.
Fig. 4 is Multistage filtering device structural representation of the present invention.
Fig. 5 is the transmittance comparison diagram of different oil sample.
Embodiment
As shown in Figure 1, the invention provides a kind of relative rolling type testing machine lubricant oil self-purging and circulation supply system, comprise the rolling fixture 3 of fuel reserve tank 1, purification fuel tank 2 and relative rolling type testing machine, described fuel reserve tank connects an oil nozzle 5 by oil pump 4, described oil nozzle just to rolling fixture, lubricant oil injected rolling fixture lubricate; Described rolling fixture is provided with transparent oil removal cover 6, is provided with oil trap 7 below rolling fixture, described oil trap is connected with purification fuel tank by sedimentation device 8 and self-priming pump 9, Multistage filtering device 10; Described purification fuel tank is connected with fuel reserve tank by purification oil pump 11 and flowmeter 12.
Described relative rolling type testing machine lubricant oil self-purging and circulation supply system are provided with abrasive particle powder feeder 13, and described abrasive particle powder feeder is connected with fuel reserve tank by flow dontroller 14.
As shown in Figure 2, a stirring apparatus 15 is provided with in described fuel reserve tank.
As shown in Figure 2, described stirring apparatus comprise motor 15-1 and be connected with motor, the rabble 15-2 goed deep in fuel reserve tank, described rabble is provided with agitator arm 15-3.
As shown in Figure 3, described sedimentation device is provided with multiple strong magnet 8-1; Sewage draining exit 8-2 is provided with bottom sedimentation device.
As shown in Figure 4, described Multistage filtering device is provided with one deck 200 order, aperture is the wire netting 10-1 of 74 μm and two-layer diatomite filtration sheet 10-2.
Described fuel reserve tank is provided with abrasive particle inlet 1-1 and clean oil entrance 1-2 and oil mass display apparatus 1-3.
Working procedure of the present invention is: the lubricant oil in fuel reserve tank flows out through outlet, under oil pump effect, between the roller being injected the rolling fixture of relative rolling type testing machine, lubricates the contact position of roller with the speed of 10 L/h by oil nozzle.Waste oil after lubrication flows into sedimentation device after oil trap is collected, and eliminate partial impurities through precipitation, the uniform four pieces of strong magnets in sedimentation device bottom, effectively can adsorb Ferromagnetic Impurities and particle etc., the waste oil after settlement treatment enters Multistage filtering device.After layer of metal net pre-filtering after filtration in device and two-layer diatomite filtration sheet filter, the solid impurities such as the abrasive particle in waste lubricating oil are removed completely substantially, again can drop into test and use.Lubricant oil after purification is deposited in purification fuel tank, extracts out through oil pump, is controlled to circulate to return in fuel reserve tank with constant rate of speed 10 L/h to continue to use by flowmeter.
The present invention adopt collect waste oil, sedimentation removal of impurities, magnet adsorption removal of impurities, multi-stage filtration purifying flow process impurity and purification process is carried out to waste lubricating oil, be met the purification lubricant oil of contact fatigue requirement of experiment, continue to drop into test through circulation means to use, achieve the object of saving lubricant oil and lubrication oil circulation supply.
For realizing to add SiO
2abrasive particle is the contact fatigue accelerated life test of accelerated factor, and the present invention adopts agitator arm to ensure to be added into SiO in fuel tank in the mode of some cycles circulation clockwise and anticlockwise in fuel reserve tank
2being uniformly distributed of abrasive particle, and prevent it from reuniting and sedimentation.
For ensureing that in lubricant oil, abrasive grain content is constant, the present invention adopts the flowmeter control unit time to enter the purification quality of lubrication oil of fuel reserve tank, and the unit of account time should supplement SiO based on this
2abrasive particle quality, controls its adding quantity by flow dontroller, ensures SiO in fuel reserve tank
2abrasive particle quality mark keeps constant substantially, ensures the reliable enforcement of accelerated life test.
The concrete equipment of the present embodiment is as follows:
The SiO that the present embodiment adopts
2abrasive Particle Size is 50 ~ 100 μm, is positioned over Beijing Space Zhen Bang precision optical machinery Co., Ltd and becomes in the ZB-2000F type powder feeder of product, can set powder feeding rate, to control abrasive particle adding quantity.
Fuel reserve tank material is Q235 steel, brush rust proof paint, maximum capacity 50 L.The fuel reserve tank side of covering arranges two entrances, is respectively lubricating oil inlet after abrasive particle inlet and circularly purifying.Lubricant oil adopts No. 20 machine oil of GB 10622-89 regulation, and density is 0.88 × 10
3kg/m
3.When carrying out contact fatigue accelerated life test, if abrasive particle mass fraction in lubricant oil is 2 %.When lubricants capacity initial in fuel reserve tank is 50 L (can be read by oil mass display apparatus), its quality is 44 kg.SiO need be added
2abrasive particle quality is 880 g.Powder feeder is by SiO
2abrasive particle 880 g adds in lubricant oil by abrasive particle inlet, and driven by motor agitator arm carries out reciprocating rotary with the rotating speed of 30 r/min, to make SiO
2abrasive particle is evenly distributed in lubricant oil, avoids occurring to reunite and precipitation.Waste lubricating oil is circulated by clean oil entrance and injects fuel reserve tank after purified treatment, and charge velocity is controlled by oil pump and flowmeter, keeps certain value.When clean oil circulation charge velocity is 10 L/h, for keeping SiO in fuel reserve tank
2wear particle concentration is constant, then SiO
2abrasive particle feed speed must be set as 176 g/h.
Oil trap material is Q235 steel, brush rust proof paint.Major function is for collecting waste lubricating oil, waste oil flows into sedimentation device through outlet, oil removal cover material is PVC=polyvinyl chloride, major function enters between roller with in lubricant oil for preventing lubricating oil splash and from external contaminants, in oil removal cover side, oil nozzle import is set, oil removal cover is transparent, is convenient to observe roller running state in test and lubricant oil supply condition.
Sedimentation device material is Q235 steel, brush rust proof paint.Waste lubricating oil enters sedimentation device through oil pipe after being collected by oil trap, and the uniform four pieces of strong magnets of bottom of device, effectively can adsorb Ferromagnetic Impurities and particle etc., fraction solids impurity sedimentation is in bottom of device in addition, and after settlement treatment, waste oil enters first level filtering device.When need clear up, the impurity falling to bottom of device can be discharged by sedimentation device bottom blow-down mouth.
Multistage filtering device material is Q235 steel, brush rust proof paint.One deck 200 order (74 μm, aperture) wire netting is adopted to carry out pre-filtering.Filter through two-layer diatomite filtration sheet after pre-filtering, the technical parameter of diatomite filtration sheet is in table 1 again.Because diatomite filtration sheet has the advantages such as chemical stability is high, mechanical strength is large, therefore the multi-stage filtration purifying device in native system is efficient, pollution-free, flux large, purification precision high (can reach 1 μm), in waste lubricating oil after multi-stage filtration purifying treatment, impurity is removed substantially, enters purification fuel tank to be used by outlet.
The technical parameter of table 1 diatomite filtration sheet
Filter precision/μm | Maximum filtering flow t/h | Most high-temperature resistant/DEG C | Maximumly bear pressure/MPa |
1.0 | 0.02 | 200 | 0.6 |
Clean oil box lumber matter is Q235 steel, brush rust proof paint.Major function is the lubricant oil after depositing purified treatment, enters fuel reserve tank recycle by oil pump extraction.The speed that purification lubricant oil injects fuel reserve tank is controlled by flowmeter.
For ensureing purification quality of lubrication oil, detect it, the transmittance that different oil sample records as shown in Figure 5.Transmittance detecting method is: using petroleum ether as reference (its transmittance is 100%), simultaneously using petroleum ether as thinner, thinner: oil sample (volume)=10: 1, at 610nm(maximum absorption wavelength) wavelength under adopt 722N visible spectrophotometer to measure the light transmittance values of oil sample.
As shown in Figure 5, the transmittance of waste lubricating oil is 21.6%, and the purification lubricant oil transmittance after sedimentation, absorption and multistage filtering reaches 88.1%, close to 94.2% of new oil.Illustrate that the lubricant oil after system purification meets the standard again carrying out testing, can recycle.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (2)
1. a relative rolling type testing machine lubricant oil self-purging and circulation supply system, comprise the rolling fixture of fuel reserve tank, purification fuel tank and relative rolling type testing machine, described fuel reserve tank connects an oil nozzle by oil pump, described oil nozzle just to rolling fixture, lubricant oil injected rolling fixture lubricate; It is characterized in that: described rolling fixture is provided with transparent oil removal cover, is provided with oil trap below rolling fixture, described oil trap is connected with purification fuel tank by sedimentation device and self-priming pump, Multistage filtering device; Described purification fuel tank is connected with fuel reserve tank by purification oil pump and flowmeter;
Described relative rolling type testing machine lubricant oil self-purging and circulation supply system are provided with abrasive particle powder feeder, and described abrasive particle powder feeder is connected with fuel reserve tank by flow dontroller;
A stirring apparatus is provided with in described fuel reserve tank;
Described stirring apparatus comprise motor and be connected with motor, the rabble goed deep in fuel reserve tank, described rabble is provided with agitator arm;
Described sedimentation device is provided with multiple strong magnet; Sewage draining exit is provided with bottom sedimentation device;
Described Multistage filtering device is provided with layer of metal net and two-layer diatomite filtration sheet.
2. relative rolling type testing machine lubricant oil self-purging and circulation supply system as claimed in claim 1, is characterized in that: described fuel reserve tank is provided with abrasive particle inlet, clean oil entrance and oil mass display apparatus.
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EP3358058B1 (en) * | 2017-02-03 | 2019-10-16 | Baier & Köppel GmbH & Co. | Oil circulation unit |
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CN105526486B (en) * | 2015-12-28 | 2018-03-06 | 江苏兴达钢帘线股份有限公司 | A kind of online sedimenting system of lubricant |
CN112403104B (en) * | 2020-11-25 | 2024-05-28 | 宁波市特种设备检验研究院 | Oil return filtering system for pulse fatigue testing equipment of energy accumulator |
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