CN1512164A - Intelligent analyzer for metal lubricant friction performance - Google Patents
Intelligent analyzer for metal lubricant friction performance Download PDFInfo
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- CN1512164A CN1512164A CNA021516227A CN02151622A CN1512164A CN 1512164 A CN1512164 A CN 1512164A CN A021516227 A CNA021516227 A CN A021516227A CN 02151622 A CN02151622 A CN 02151622A CN 1512164 A CN1512164 A CN 1512164A
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- pulling force
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Abstract
One hydraulic system including two oil cylinders mainly is used to provide compressive force and tensile force to measured metal sheet separately, and the friction coefficient between metal sheet of different kinds and lubricant of different kinds under high and medium pressure contact state may be measured. The force data may be displayed directly, and the compressive force and tensile force of the hydraulic system are measured with corresponding sensors to obtain the electric signals, converted in a A/D converter into digital amounts and data processed in the computer and stored in the data base of the computer together with the obtained friction coefficient.
Description
(1) technical field
The invention belongs to the lubricant frictional behaviour determination and analysis device that uses in metal forming and the mechanical transmission fields, be specially adapted to performance measurement, the analysis of lubricant when metal slides relatively under the middle and high contact pressure state.
(2) background technology
In metal forming processing technology and heavy equipment mechanical driving device, often there is sizable contact pressure between the metal.Under bigger contact pressure state, the Frotteurism between the metal surface is very complicated.Present existing metallic lubricant fabricmeter mainly adopts mechanical transmission structure, by after the long break-in, surveys the fret wear amount of low-pressure state under low-pressure state, and the friction factor of test material.The utility model patent " metallic lubricant frictional behaviour analyzer " of Patent Office of the People's Republic of China's approval on Dec 24th, 1999, the working pressure table carries out the measurement of pressure and pulling force, the advantage of this analyzer is simple in structure, but the precision of measuring is low, greasy property that can not the analysis-by-synthesis lubricant.Plastic engineering journal Vol.7 No.2, Jun.2000 disclose a kind of sheet moulding measuring friction coefficient device, the pulling force that a plurality of foil gauges measurement of this device employing thin plates are subjected to and the tensile strain of generation, and then carry out a series of calculating.This device must use on Material Testing Machine.Be applicable to that at present slide the relatively intelligent test device of lubricant greasy property of metal under the middle and high contact pressure state do not see that as yet report is arranged.
(3) summary of the invention
The object of the present invention is to provide a kind of lubricant frictional behaviour determinator that metal slides relatively under middle and high press contacts pressure state.
The present invention adopts the biliquid pressing system that pressure and pulling force are provided, use tension and compression to change sensor and measure the friction factor that metal slides relatively under middle and high contact pressure state, the relation of processings that use a computer, analysis friction factor and different contact materials, pressure, lubricant.This device is mainly exerted pressure and pulling force to tested metal blank respectively by two oil cylinders, by changing pressure, lubricant, metal blank and sliding speed, the friction factor in the time of can recording metal blank different under the different middle and high contact pressure states and adopt different lubricants.The direct video data of tensimeter, the pressure of hydraulic system and pulling force mainly by two draw, pressure sensor, with the electrical signal transfer of pressure and the pulling force A/D converter to the computing machine, after being converted to digital signal, leave the database of computing machine in together with the friction factor that calculates, each test findings is concentrated the total data storehouse dump to computing machine, can be comprehensively repeatedly test findings, analyze the frictional behaviour of lubricant.
Identical pressure head material, material for test can be drawn according to the data of test of many times, the different pressures of lubricant and the relation curve of friction factor by the frictional behaviour testing software of computing machine; And the friction factor comparison diagram of different lubricants under identical pressure head material, material for test, pressure etc.
(4) accompanying drawing
Figure one has provided front of the present invention sectional structure synoptic diagram; Figure two is a vertical view; Figure three is the A-A cross-sectional view of figure one; Figure four is a hydraulic system principle figure.
This device is mainly by forming with the lower part:
Top panel in main body frame (1) is equipped with pressure head support (11), and screw is fixed on the pressure head support on the main body frame.Adjust screw (12) precession seaming chuck (14), the seaming chuck pressure head support of packing into, spacing by stop screw (13).Push-down head (15) the pressure head support of packing into is connected with pressure transducer (17), and pressure transducer (17) is connected with the oil pressure cylinder piston rod.Oil pressure cylinder (22) is by on the lower surface that is bolted to the pressure head support.
Pull action cylinder (4) is fixed by bolts to the upper surface of main frame casing, and the center line between the upper and lower pressure head of center and oil pressure cylinder is on same axis.The piston of pull action cylinder is connected with pulling force sensor (8), and chuck (10) is housed on the pulling force sensor (8).
Pull action cylinder oil inlet pipe (5), scavenge pipe (2) are connected with three-position four-way valve (22).The oil inlet pipe of oil pressure cylinder (24), scavenge pipe (20) are connected with three-position four-way valve (19).Motor (33) is connected with gear-type pump (36) by shaft coupling (34).Gear-type pump (36) is screwed on gear-type pump fixed head (35).Motor (40) is connected with gear-type pump (37) by shaft coupling (39).Gear-type pump (37) is screwed on gear-type pump fixed head (38).Gear-type pump fixed head (38) is fixed by bolts on the following flat board of main body frame.The oil inlet pipe connected tank of two gear-type pumps, gear-type pump (36) flowline connects hydraulic manifold block (18).Gear-type pump (37) flowline connects hydraulic manifold block (21).Surplus valve (3), (7) are fixed on the main body frame upper plate.Three position four-way electromagnetic valve (19) is screwed on hydraulic manifold block (18), and three position four-way electromagnetic valve (22) is screwed on hydraulic manifold block (21).
Pulling force cylinder surplus valve (3) import connects the flowline of pulling force oil pump (36), and outlet connects fuel tank (25).Hydralic pressure gauge (6) is housed on the pull action cylinder oil inlet pipe (5).The oil pressure of pull action cylinder is regulated by the handle (30) of surplus valve (3).Pressure cylinder surplus valve (7) import connects the flowline of pressure oil pump (37), and outlet connects fuel tank (25), and hydralic pressure gauge (9) is housed on the oil inlet pipe of oil pressure cylinder (24), and the handle (31) of the surplus valve of oil pressure cylinder (7) is regulated.Hydraulic manifold block (18), (21) are screwed on fuel tank.
The supply socket (26) that is installed in the main body frame side is controlled by battery main switch (29).Be installed in the advancing of electric switch control box (32) the control motor of upper surface and oil pressure cylinder, pull action cylinder, loop hydraulic system.Draw, the signal wire of pressure sensor connects A/D change-over panel in the computing machine by interface (27).
The A/D digital converter is contained in the computing machine, and intellectual analysis software is contained in the hard disk of computing machine, or makes a CD separately.
The oil circuit joint of this analyzer hydraulic system adopts the sealing of PEF plastic sheeting, seals with the O RunddichtringO when valve connects with hydraulic manifold block.
The course of work of this system is as follows:
Energized is opened computing machine, starting friction performance test software, and the test sequence number, test of filling in this in corresponding menu is with data such as pressure head material, plate model, the lubricant trade mark, testing crew, dates of test.
According to detect requiring that seaming chuck (14), push-down head (15) are changed to the desired material of technology, simultaneously tested plate two-sided all is coated with apply the lubricant that will detect greasy property after, be placed on push-down head (15) and go up the plane, and be clamped in the chuck (10).
As electromagnet 1DT, 2DT, 3DT, 4DT, when all being in off-position, starting pressure cylinder motor (40), hydraulic oil is by pressure cylinder surplus valve (7) oil sump tank.
Electromagnet 3DT energising, the left road work of pressure cylinder three position four-way electromagnetic valve (19), the piston rod of oil pressure cylinder (22) rises, and its pressure shows that by tensimeter (9) snap-in force of oil pressure cylinder can be controlled by surplus valve (7).
Electromagnet 3DT outage, three position four-way electromagnetic valve (19) recovers the centre position, gear-type pump (37) unloading, oil pressure cylinder (22) is in packing state.
Start the frictional behaviour testing software of computing machine, computing machine will by the time period of setting collect by two draw, pulling force that pressure sensor is measured and the electric signal of pressure, and automatically electric signal is converted to digital signal by A/D converter, be stored in the corresponding database, and be presented on the corresponding menu of computing machine.
Start pulling force cylinder motor (33), hydraulic oil is by pulling force surplus valve (3) oil sump tank (25).Electromagnet 1DT energising, the left road work of three position four-way electromagnetic valve (22), the piston rod of pull action cylinder (4) is retracted into cylinder body to the right, and its pulling force is shown by tensimeter (6).
Electromagnet 3DT outage, three position four-way electromagnetic valve (22) recovers the centre position, gear-type pump (36) unloading.
Electromagnet 4DT energising, the right wing work of three position four-way electromagnetic valve (19) is retracted into cylinder body downwards at the piston rod of oil pressure effect downforce oil cylinder (22), and after electromagnet 4DT outage, three position four-way electromagnetic valve (19) recovers the centre position.
Electromagnet 2DT energising, the right wing work of three position four-way electromagnetic valve (22), the piston rod of pull action cylinder (4) stretches out left, and when electromagnet 4DT outage, three position four-way electromagnetic valve (22) recovers the centre position.
The result of test can deposit the database of computing machine in, so that analyze the frictional behaviour of lubricant.
This analyzer can be measured the friction factor of metal blank under the high pressure conditions fast by with hydraulic system metal blank being exerted pressure and pulling force, for the lubricant effect of estimating various lubricants provides foundation.
The present invention changes the shape of pressure head and pull head, can measure the lubricant frictional behaviour that various minor diameter tubing drawings are used.This computer software can be drawn identical tubing, identical drawing diameter, the friction factor comparison diagram of different lubricants according to test figure.
Pulling force of the present invention system also can adopt machine driven system, so that bigger, more stable pulling force is provided.
(5) embodiment:
The pull and stretch corrosion resistant plate is coated with chlorocosanes equably and makes lubricant on the corrosion resistant plate top layer, push-down head material selection Cr12 mould steel, seaming chuck material selection Cr12 mould steel, according to the forming technology requirement, pressure-pad-force is selected 4Mpa for use, and the contact area of plate and mould is 200mm
2So the pressure of oil pressure cylinder requires to reach 800N, the pressurization area of oil pressure cylinder is 1256mm
2, by regulating surplus valve (7), the pressure of oil pressure cylinder is adjusted to 800N.Starting pull action cylinder, is 148.9N as the pulling force of pull action cylinder, and can record the friction factor of this corrosion resistant plate when this lubricating status is 0.093.The numerical value of pressure and pulling force and the friction factor that calculates all are presented in the respective menu of computing machine, and can be stored in as required in the database of computing machine.This friction factor can be used for estimating the greasy property of lubricant under this kind machining state.
Claims (1)
1, a kind of metallic lubricant frictional behaviour analyzer comprises support, motor, fuel tank, gear-type pump, hydraulic system, pressure head, chuck, integrated package, pull pressure sensor, the digital change-over panel of A/D, computing machine, intellectual analysis software etc.It is characterized in that this hydraulic system provides pressure and pulling force respectively by two oil cylinders; Push-down head (15) links by pulling force sensor (17) and oil pressure cylinder (22) and perpendicular to support (1), collet chuck (10) links to each other with pull action cylinder (4) by pressure transducer (8), the central axis of pull action cylinder (4) and seaming chuck (14), the central axis between the push-down head (15) is on same axis; The signal of sensor acquisition is transferred to the database of computing machine by the A/D digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02151622 CN1244810C (en) | 2002-12-31 | 2002-12-31 | Intelligent analyzer for metal lubricant friction performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02151622 CN1244810C (en) | 2002-12-31 | 2002-12-31 | Intelligent analyzer for metal lubricant friction performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512164A true CN1512164A (en) | 2004-07-14 |
| CN1244810C CN1244810C (en) | 2006-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02151622 Expired - Fee Related CN1244810C (en) | 2002-12-31 | 2002-12-31 | Intelligent analyzer for metal lubricant friction performance |
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| Country | Link |
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| CN (1) | CN1244810C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893535A (en) * | 2010-06-30 | 2010-11-24 | 清华大学 | Method for testing limit operating temperature and high-temperature wear-resisting property of lubricating oil |
| CN102183456A (en) * | 2011-01-24 | 2011-09-14 | 中交第一航务工程勘察设计院有限公司 | Digitally displayed automatic adhesive force instrument |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU203041U1 (en) * | 2020-11-30 | 2021-03-19 | Владимир Владимирович Скакун | Device for determining the coefficient of friction of lubricants |
| RU2769649C1 (en) * | 2021-04-26 | 2022-04-04 | Владимир Владимирович Скакун | Device for determining the coefficient of friction of lubricants |
-
2002
- 2002-12-31 CN CN 02151622 patent/CN1244810C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893535A (en) * | 2010-06-30 | 2010-11-24 | 清华大学 | Method for testing limit operating temperature and high-temperature wear-resisting property of lubricating oil |
| CN102183456A (en) * | 2011-01-24 | 2011-09-14 | 中交第一航务工程勘察设计院有限公司 | Digitally displayed automatic adhesive force instrument |
| CN102183456B (en) * | 2011-01-24 | 2012-11-14 | 中交第一航务工程勘察设计院有限公司 | Digitally displayed automatic adhesive force instrument |
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| Publication number | Publication date |
|---|---|
| CN1244810C (en) | 2006-03-08 |
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