CN200952991Y - Automatic controlling friction and wear performance testing machine - Google Patents

Automatic controlling friction and wear performance testing machine Download PDF

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Publication number
CN200952991Y
CN200952991Y CN 200620135851 CN200620135851U CN200952991Y CN 200952991 Y CN200952991 Y CN 200952991Y CN 200620135851 CN200620135851 CN 200620135851 CN 200620135851 U CN200620135851 U CN 200620135851U CN 200952991 Y CN200952991 Y CN 200952991Y
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CN
China
Prior art keywords
testing machine
friction
cylinder
automatic control
abrasion performance
Prior art date
Application number
CN 200620135851
Other languages
Chinese (zh)
Inventor
李东生
刘学耕
Original Assignee
李东生
刘学耕
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 李东生, 刘学耕 filed Critical 李东生
Priority to CN 200620135851 priority Critical patent/CN200952991Y/en
Application granted granted Critical
Publication of CN200952991Y publication Critical patent/CN200952991Y/en

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Abstract

The utility model relates to an automatic friction & abrasion control testing machine. For the existing technology, MM 1000 frictional properties testing machine is one of the machines for friction material industry in 1980s. However, it lacks an automatic control structure and an unscientific data acquisition means. In a bid to solve the problems as per stated above, this utility model's declutch mechanism adopts the pneumo-executive mode pre-forming clutch of which the medium swing or bottom swing cylinder is available for the propulsive cylinder. This utility model innovates the manual operation methods, the non-automatic structure and the unscientific data acquisition means, so as to establish the dry-type & wet-type testing methods for the friction material. So, the simulated reference sample inertia test is achieved under the laboratory conditions. This utility model is widely adopted in such fields as the aircraft, the military vehicle, the motor vehicle, the boats & ships, the rail transportation and engineering machinery, etc., so that the frictional wear test requirements for the drag friction materials in the above fields are met.

Description

Friction, the abrasion performance testing machine of automatic control
Technical field:
The utility model relates to a kind of under laboratory condition, contract than the inertia test machine of simulating brake with sample, can be to the checkout equipment of doing, Wet-type friction material carries out rubbing wear, thermal shock wheels-locked testing, its operating process all realizes robotization, the friction of a kind of automatic control specifically, abrasion performance testing machine.
Technical background:
In the prior art, MM1000 type frictional property test machine is one of type that the eighties, the friction material industry was used, but it has the incompatible structure of control automatically, unscientific data acquisition modes.
The improved QM1000-II type of inventor Wet-type friction material performance aircraft, also obtained national patent, notification number: CN2569129, it is to improve on the basis of MM1000 type, the collection of successful realization instant value, and only be suitable for the friction and wear characteristic test of Wet-type friction material, and speed, inertia are little, are not suitable for the thermal shock wheels-locked testing.
Summary of the invention:
The purpose of this utility model is to provide a kind of and can tests friction and wear characteristic, the braking brake of dry type, wet type two big class friction materials, carry out comprehensive, multifunctional testing, and operate, safeguard friction, the abrasion performance testing machine of simple robotization control.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of friction of Automatic Control, abrasion performance testing machine, comprise lathe bed 1, inertia dish 2, main motor 23, clutch coupling 7, cylinder 19 etc., and constitute the force application mechanism, clutch linkage, torque measurement mechanism, temperature measuring equipment etc. of testing machine, contract than the inertia test of simulating brake thereby under laboratory condition, carry out sample.Its special character is:
The compressing tablet formula clutch coupling 7 that the clutch linkage of described testing machine adopts pneumatic executive mode to realize, pendulum or end of swing formula cylinder during its thrust cylinder 28 adopts.
The force application mechanism of above-mentioned testing machine adopts non-resistance cylinder 19, is provided with rolling bearing 18 on four sides at cylinder axis.
The pressure exerting arrangement of above-mentioned testing machine is a two-bit triplet solenoid valve 25 of oppositely installing.
The accuracy class that the afterbody of the cylinder 19 of above-mentioned testing machine is provided with sensor is 0.05% pressure transducer 20.
The torque measurement mechanism of above-mentioned testing machine is that the recurrence dish implements structure, the pulling force sensor 21 that an end of recurrence dish 10 is provided with, the torque value that the radius by the recurrence dish and the product of actual measurement pulling force get.
Above-mentioned testing machine tachogenerator is a photoelectric sensor 24.
Above-mentioned testing machine signal of sensor is connected with computer interface through the A/D plate by electronic processing.
The utility model is with respect to prior art, and its advantage is as follows:
1, after the utility model is transformed, with all manual operation forms; The structure division of incompatibility robotization control; Unscientific data collection form has carried out the system reform.
2, the utility model is a foundation with the technical feature requirement of actual user mode and bench test, selected the active physical parameter of process of the test, set up the method for testing of dry type, Wet-type friction material, finished that sample contracts than the inertia test of simulating brake under laboratory condition.
3, the utility model is widely used in the friction and wear behavior testing requirements of the brake friction material in fields such as aircraft, military vehicle, automobile, boats and ships, track traffic and engineering machinery.
Description of drawings:
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is the structural representation of torque measurement of the present utility model mechanism;
Fig. 3 is the structural representation of pressure exerting arrangement two-bit triplet solenoid valve 25 of the present utility model;
Fig. 4 is speed control principle figure of the present utility model;
Fig. 5 is an assignment of logical of the present utility model system control chart.
Above-mentioned each number in the figure is described as follows:
1-lathe bed, 2-inertia dish, 3-tailstock bolster, 4-tailstock
5-tailstock bearing 6-flange 7-clutch coupling 8-flat belt tests the speed
9-main shaft, 10-main spindle box, 11-main shaft bearing 12-moving jig dish
13-friction pair 14-quiet jig dish 15-recurrence dish 16-cylinder axis
17-cylinder block, 18-bearing cylinder, 19-cylinder, 20-pressure transducer
21-pulling force sensor, 22-temperature sensor 23-main motor 24-tachogenerator
25-solenoid valve, 26-oscillating bearing, 27-shift fork, 28-thrust cylinder
Embodiment:
Referring to accompanying drawing 1, Fig. 1 is an one-piece construction synoptic diagram of the present utility model; The utility model is that former MM1000 type frictional testing machine has been carried out the system reform, makes it adapt to the requirement of Automatic Control, reaches the consistance of test data and the brand-new equipment of good reproducibility; Its structure comprises lathe bed 1, inertia dish 2, main motor 23, clutch coupling 7, cylinder 19 etc., and constitutes the force application mechanism, clutch linkage, torque measurement mechanism, temperature measuring equipment etc. of testing machine, thereby records material friction, polishing machine in experiment.The utility model adopts non-resistance cylinder block, pneumatic clutch mechanism, returns disc type force measuring machine etc., it all carries out action, clutch separation adopts pneumatic mechanism to automatically perform, compression system adopts the non-resistance cylinder, solenoid valve is exerted pressure automatically, the employing pulling force sensor is turned round in survey, and accuracy class is 0.4% to multiply by the arm of force and realize.
The clutch linkage of the utility model testing machine adopts the compressing tablet formula clutch coupling of realizing by pneumatic executive mode 7, pendulum or end of swing formula cylinder during its thrust cylinder 28 adopts.
The force application mechanism of the utility model testing machine adopts non-resistance cylinder 19, is provided with rolling bearing 18 on four sides at cylinder axis, when cylinder 19 is exerted pressure, can reduce resistance to minimum.
The accuracy class that the afterbody of the cylinder 19 of the utility model testing machine is provided with sensor is 0.05% pressure transducer 20.
The utility model testing machine tachogenerator 24 is a photoelectric sensor.
Concrete work of the present utility model is as follows:
The testing machine system comprises main body part, power section, control section three parts composition.The mode that testing machine adopts annulus specimen 13 end face cunnings to rub, at first give for main motor 23 by D/A interface control of conversion device by computing machine, main motor 23 makes clutch coupling 7 drive main shaft 9 by belt 8 and rotates, main shaft 9 connects by the flange 6 that tests the speed with bolster 3, drag inertia dish 2 and rotate simultaneously with main shaft 9, its speed records rate signal by grating dish on the flange 6 that tests the speed and tachogenerator 24; Moving test specimen on the main shaft 9 is contained in and rotates in the jig dish 12, quiet test specimen or mating plate are contained in the quiet jig dish 14, after reaching certain speed, produce certain kinetic energy by main shaft and inertia dish, treat the stable back of its kinetic energy (3 seconds), start clutch coupling 7 shift forks 27, make main shaft 9 and motor 23 active forces throw off simultaneous computer and give solenoid valve 25 signals by the I/O mouth, cylinder 19 is exerted pressure, its force value is read by pressure transducer 20, the product that 13 pairs of fricative dynamic torque values of while friction pair are coiled 15 radiuses by pulling force sensor 21 and recurrence is measured, temperature value is measured by the temperature sensor 22 that is contained on the friction pair 13, braking time is measured by principal computer, and the collection of above data is finished at one time.By computing machine output frequency variation signal, open or close by logical circuit and exchange the test that instant value is finished in control, promptly obtain the test data of arbitrary moment in the process of the test, the pressure that this is same in a flash, torque value can calculate the friction factor under this state, speed by this moment and the torque value performance number of this moment of getting back again, can obtain test speed again according to these data, test pressure, maximum moment, average moment, the moment wobble coefficient, unit absorbs merit, unit can carry, data such as braking time, can draw out pressure-torque curve by above principle, speed-powertrace, temperature-friction factor curve map is totally six relation curves, more than be operated in configure test condition after, only need the one click mouse just can automatically finish, the process of the test of former complexity is oversimplified, sequencing reaches the effect of test data high conformity.
The utility model applying FM speed adjusting technique is finished the lifting of 9000r/min high-speed smooth and speed changing function is set at random; Application high precision torque sensor, pressure transducer, photoelectric sensor, intelligent temperature controller are finished the output and the collection of analog data, improve acquisition precision, reached moment of friction 150Nm, axial normal pressure 10KN, 1000 ℃ of brake temperature, configuration inertia 1.57kgm 2Capable of being combined.
Technical indicator is according to the process route and the simulation actual working conditions of GB, use the instant value measuring technology effectively and finish the test data that arbitrary moment puts in the process of the test, the torque value of same force value in a flash and its pressure generation, and calculating the friction factor and the correlation properties value of this some moment, precision reaches ± 1%FS.
Referring to accompanying drawing 2, the employing recurrence of the torque measurement mechanism of testing machine is coiled 10 1 ends with pulling force sensor 21 of oscillating bearing 26 pullings, by the radius R of recurrence and amassing of actual measurement tensile force f, and draws torque value accurately.
Referring to accompanying drawing 3, the mode of exerting pressure of testing machine adopts a two-bit triplet solenoid valve 25 of oppositely installing to realize, and is specific as follows:
Gas cylinder is selected 15 kilograms of standard nitrogen bottles for use, quicken by reduction valve, pressure regulator valve makes it be adjusted to setting according to parameter request, and master gauge is selected 0.4 grade of high-precision pressure table for use, makes its reading consistent with the computer program reading, error is less than 1%FS, solenoid valve is accepted computer instruction and is opened, and gives cylinder charge, and the axle that promotes to exert pressure applies normal pressure to friction pair, force value is read by pressure transducer, finishes the course of exerting pressure of single test.
Referring to accompanying drawing 4, Fig. 4 is speed control principle figure of the present utility model; Behind the computer operation, at first give variable-frequence governor by interface board D/A mouth output voltage signal, frequency converter is given the electric current of main motor certain frequency according to the instruction of computing machine, main motor is rotated, main motor passes to main shaft by belt with rotating speed, and the velometer on the main shaft sends rate signal to computing machine by the USB mouth, and computing machine is adjusted voltage signal again, give frequency converter by interface board, process forms a closed loop.When reaching the tachometer value of parameter regulation, measuring and adjusting speed is finished.
Referring to accompanying drawing 5, Fig. 5 is an assignment of logical of the present utility model system control chart; The utility model control system comprises center processor, is divided into 4 circuit-switched data collections, the control of 3 path switching signals, 1 drive test speed digital amount signals collecting and the output of 1 tunnel simulating signal are made up by software logic ground with computing machine, can form the full automatic control system of a cover.
It adopts industrial control computer is master controller, and by industrial interface board, the output of I/O passage K1, K2, K3 three-way switch amount are controlled pressurization, clutch, air-cooled respectively; Export one tunnel simulating signal by industrial interface board D/A passage, realize the frequency modulation speed changing function; Connect with industrial computer USB mouth by optoelectronic switch, scrambler, realize speed measuring function; Gather pressure transducer, pulling force sensor, temperature transmitter in process of the test by the A/D passage of industrial computer, the pressure, moment of torsion, the temperature value that take place, and the processing by software, calculating can obtain whole desired datas, comprises that same pressure, moment of torsion, average friction coefficient, maximum friction coefficient, speed, deceleration time, absorption merit, instantaneous power, unit line wearing and tearing, unit in a flash restrains total datas such as wearing and tearing.

Claims (7)

1, a kind of friction of automatic control, abrasion performance testing machine, comprise lathe bed (1), inertia dish (2), main motor (23), clutch coupling (7), cylinder (19) etc., and force application mechanism, clutch linkage, torque measurement mechanism, the temperature measuring equipment of formation testing machine, thereby in experiment, record material friction, polishing machine; It is characterized in that: the clutch linkage of described testing machine adopts the compressing tablet formula clutch coupling of realizing by pneumatic executive mode (7), pendulum or end of swing formula cylinder during its thrust cylinder (28) adopts.
2, the friction of automatic control according to claim 1, abrasion performance testing machine is characterized in that: the force application mechanism of described testing machine adopts non-resistance cylinder (19), is provided with rolling bearing (18) on four sides at cylinder axis.
3, the friction of automatic control according to claim 1 and 2, abrasion performance testing machine, it is characterized in that: the torque measurement mechanism of described testing machine implements structure for the recurrence dish, the pulling force sensor (21) that one end of recurrence dish (10) is provided with, the torque value that radius and the actual measurement pulling force by the recurrence dish records.
4, the friction of automatic control according to claim 3, abrasion performance testing machine is characterized in that: the accuracy class that the afterbody of the cylinder of described testing machine (19) is provided with sensor is 0.05% pressure transducer (20).
5, the friction of automatic control according to claim 3, abrasion performance testing machine is characterized in that: the pressure exerting arrangement of described testing machine is a two-bit triplet solenoid valve (25) of oppositely installing.
6, the friction of automatic control according to claim 3, abrasion performance testing machine is characterized in that: described testing machine tachogenerator is a photoelectric sensor.
7, the friction of automatic control according to claim 4, abrasion performance testing machine is characterized in that: described testing machine signal of sensor is connected with computer interface through the A/D plate by electronic processing.
CN 200620135851 2006-09-26 2006-09-26 Automatic controlling friction and wear performance testing machine CN200952991Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 200620135851 CN200952991Y (en) 2006-09-26 2006-09-26 Automatic controlling friction and wear performance testing machine

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101413861B (en) * 2008-12-03 2011-05-25 中国科学院力学研究所 Pneumatic loading type friction wear testing machine
CN103323390A (en) * 2013-07-02 2013-09-25 哈尔滨工业大学 System for determining sliding friction coefficient of solid material for laboratory
CN107024429A (en) * 2017-05-04 2017-08-08 南京工程学院 A kind of test device and application method for high-speed friction spark

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101413861B (en) * 2008-12-03 2011-05-25 中国科学院力学研究所 Pneumatic loading type friction wear testing machine
CN103323390A (en) * 2013-07-02 2013-09-25 哈尔滨工业大学 System for determining sliding friction coefficient of solid material for laboratory
CN107024429A (en) * 2017-05-04 2017-08-08 南京工程学院 A kind of test device and application method for high-speed friction spark

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: XI'AN SHUNTONG ELECTRICAL AND MECHANICAL TECHNOLOGY INSTITUTE

Assignor: Li Dongsheng|Liu Xuegeng

Contract record no.: 2010610000060

Denomination of utility model: Automatic-controlled friction and abrasion performance testing machine

Granted publication date: 20070926

License type: Exclusive License

Record date: 20100920

EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070926

Termination date: 20150926