CN101017129B - Multifunctional micro friction wear testing machine - Google Patents
Multifunctional micro friction wear testing machine Download PDFInfo
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- CN101017129B CN101017129B CN2006100976851A CN200610097685A CN101017129B CN 101017129 B CN101017129 B CN 101017129B CN 2006100976851 A CN2006100976851 A CN 2006100976851A CN 200610097685 A CN200610097685 A CN 200610097685A CN 101017129 B CN101017129 B CN 101017129B
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Abstract
This invention relates to one multi-function micro friction test machine, which comprises drive device, move device connected to the drive one and load and measurement device on the move device and lift bench of the measurement device, wherein, it uses hanging spring board and connection bar are hinged with drive device and move device to make the slide bench generate one small range reverse line move under bar push with constant vibration range and small error; it uses motor to drive connection bar push slide to generate large vibration reverse line move.
Description
Technical field
The present invention relates to a kind of testing machine, especially multifunctional micro friction wear testing machine.
Background technology
The object that the two-phase mutual connection touches takes place to move relatively under external force P effect or when relative movement trend was arranged, the tangential resistance F that produces on the surface of contact was called friction force, and this impedance phenomenon is called friction.Forms of motion by kinematic pair can be divided into sliding friction and rolling friction, and in the laboratory, the form of research sliding friction mainly contains formula of ring, pin one disc type, end face to the form of rubbing, fretting wear form etc.The testing machine of fretting wear is to produce little amplitude to slide relatively between two surface of contact, produces little amplitude slip and mainly comprises three kinds of modes such as Mechanical Driven, fluid drives and Electromagnetic Drive.Mechanical Driven can be utilized the elastic telescopic of one of cam, lever, non-equilibrium rotation or fine motion pair etc.Lever, cam etc. can worked than under the large amplitude, and load also can change in any range, but frequency generally is no more than 50Hz.Mode is contracted owing to limited by elastic limit of material in the elasticity Shen of sample, can only work under lower amplitude, and its frequency range then depends on drive source.Electromagnetic method generally adopts electric and magnetic oscillation or utilizes functional material to produce vibration, can work under high-frequency, but this kind equipment can only be worked under little load.Adopt the Servo Drive method, it is big that it has driving force, and amplitude, frequency variation scope are wide, be easy to utilize advantages such as computer program control and measurement, but technology are complicated, and expense is higher, and equipment volume is also bigger.
At above-mentioned wear form, a variety of testing machines have been arranged, as M2000 friction wear testing machine, vertical omnipotent abrasion tester, pin one dish friction wear testing machine, CETR experimental machine etc., these testing machines mostly are the testing machine of single wear form, the CETR experimental machine can be tested the linear reciprocating motion and the rotation formula of various amplitude, but can not test the twisting forms of motion, linear reciprocating motion and the multifunction friction wear testing machine that twisting combines with various amplitude also do not have at present both at home and abroad.
Summary of the invention
The objective of the invention is problem, a kind of multifunctional micro friction wear testing machine that can finish the multiple wearing and tearing forms of motion combination of large amplitude linear reciprocating motion, little amplitude linear reciprocating motion, wide-angle twisting, minute angle twisting is provided at the prior art existence.
For achieving the above object, solution of the present invention is: it is by drive unit, the telecontrol equipment that links to each other with drive unit, and the lifting table that is located at the loading and the measurement mechanism of telecontrol equipment top and is connected loading and measurement mechanism constitutes.
Described drive unit by be located at the electric machine support on the base plate, stepper motor and the eccentric body that is installed on the electric machine support constitutes, eccentric body links to each other with stepper motor, the eccentric body lower end is provided with the connecting rod hinged with it; Described telecontrol equipment is made of the slide unit that is located at the slide on the base plate and match with it; Described telecontrol equipment is made of the turntable that is located at the bearing on the base plate and match with it; Described loading and measurement mechanism comprise control desk, and control desk has the coupling block that links to each other with sensor, are provided with slide rail between coupling block and the control desk, and are provided with locating device, and locating device is made of with the leading screw that is connected with coupling block stepper motor; Described lifting table comprises the fixed mount that is located on the base plate, and the square guide rail that provides loading and measurement mechanism to move up and down is provided in the fixed mount side, and napex is provided with the stepper motor of control ball-screw motion, and ball-screw links to each other with loading and measurement mechanism; Described drive unit can be connected with connecting rod by the articulating boom elastic plate with telecontrol equipment, also can directly be connected by rod hinge connection; Corresponding loading and the sensor in the measurement mechanism that is provided with is force transducer on the described slide unit; Corresponding loading and the sensor in the measurement mechanism that is provided with is torque sensor on the described turntable.
The invention has the beneficial effects as follows:
(1) can realize the experiment of four kinds of rubbing wear forms of motion, large amplitude linear reciprocating motion, little amplitude linear reciprocating motion, wide-angle twisting, minute angle twisting are combined;
(2) adopt the mechanical type exciting mode, driving force is big;
(3) the motion link of testing machine is few, and hinge portion adopts precision bearing to connect, amplitude constant, and error is little; Whole testing machine modular design is divided into four modules with testing machine, can select corresponding module to assemble as required, the function easy switching, and module connection and reasonable arrangement on the testing machine base plate is rational in infrastructure, is easy to processing, and is easy for installation.
Description of drawings
Fig. 1 is the embodiment of the invention one structural front view.
Fig. 2 is the embodiment of the invention one a structure side view.
Fig. 3 is the embodiment of the invention one a structure vertical view.
Fig. 4 is the embodiment of the invention two structural front view.
Fig. 5 is the embodiment of the invention two structure vertical views.
Fig. 6 is the embodiment of the invention three structural front view.
Fig. 7 is the embodiment of the invention three structure vertical views.
Fig. 8 is the embodiment of the invention four structural front view.
Fig. 9 is the embodiment of the invention four structure vertical views.
Among the figure: connecting rod 1,20,26, eccentric body 2, electric machine support 3, stepper motor 4,5,8, ball-screw 6, control desk 7, leading screw 9, slide rail 10, coupling block 11, force transducer 12, last sample 13, slide unit 14, base plate 15, slide 16, fixed mount 17, square guide rail 18, following sample 19, support 21, cantilever elastic plate 22, torque sensor 23, turntable 24, bearing 25.
Below in conjunction with accompanying drawing embodiments of the invention are further described:
Embodiment one: Fig. 1 Fig. 2 is shown in Figure 3, micro friction wear testing machine is made of drive unit, telecontrol equipment, loading and the measurement mechanism and the lifting table that are located on the base plate 15, drive unit is hinged by being fixed on cantilever elastic plate 22 on the support 21 and connecting rod 1,20 and telecontrol equipment, ratio according to cantilever elastic plate 22 is amplified and the elastic bending effect, produce small amplitude in cantilever elastic plate 22 and connecting rod 20 hinged places, small amplitude is reached on the slide unit (or turntable) by connecting rod.Loading and measurement mechanism and lifting table link, and are located at the top of telecontrol equipment.Drive unit is made of electric machine support 3, stepper motor 4 and eccentric body 2, and stepper motor 4 is located on the electric machine support 3, and eccentric body 2 is connected on the transmission shaft of stepper motor 4, and eccentric body 2 lower ends are provided with the connecting rod hinged with it 1.The rotating speed of stepper motor 4 is by the control of the pulse signal of controllor for step-by-step motor, and the pulse signal by adjustment control can change rotating speed of motor.Telecontrol equipment is made of slide 16 and the slide unit 14 that matches with it, and following sample 19 is located on the slide unit 14, drives the straight reciprocating motion of making small amplitude by slide unit 14.Load and measurement mechanism is made of control desk 7, the coupling block 11 and the force transducer 12 that are linked in sequence below control desk 7, sample 13 is equipped with in force transducer 12 belows, coupling block 11 links to each other with control desk 7 by slide rail 10, and coupling block 11 sides are provided with by stepper motor 8 and coupled leading screw 9 and constitute locating device.Lifting table is made of fixed mount 17, ball-screw 6 and stepper motor 5, fixed mount 17 sides are provided with square guide rail 18, chute on the control desk 7 in loading and the measurement mechanism matches with square guide rail 18, the top of fixed mount 17 is provided with the stepper motor 5 of control ball-screw 6 motions, and ball-screw 6 links to each other with loading and measurement mechanism.19 on last sample 13 and following sample produce the rubbing wear campaign.Last sample 13 by the rotation of ball-screw 6, can be adjusted to the height that needs with loading and measurement mechanism under the drive of motor 5, position, the left and right sides is regulated by motor 8, leading screw 9, slide rail 10.
Embodiment two: Fig. 4 is shown in Figure 5, mechanism's ingredient is basic identical with embodiment one, to be the telecontrol equipment that links to each other with drive unit be made of bearing 25 and the turntable 24 that matches with it difference, following sample 19 is fixed on the turntable 24, and the loading and the sensor in the measurement mechanism that are provided with on the corresponding turntable 24 are torque sensor 23.Turntable 24 is hinged with connecting rod 20, and and then connecting rod 20 is done reciprocal twisting together, makes down 13 on sample 19 and last sample produce twisting rubbing wear campaign, and the size of its moment of torsion detects by torque sensor 23.
Embodiment three: Fig. 6 is shown in Figure 7, mechanism's ingredient is basic identical with embodiment one, difference is that the connecting rod 26 of drive unit and the slide unit 14 of telecontrol equipment directly are hinged and connected together, drive unit is located near the telecontrol equipment side, remove support 21 and the cantilever elastic plate 22 that is located on the support 21, because the middle ratio amplifying element that has reduced the cantilever elastic plate, can make slide unit 14 obtain relatively large straight reciprocating motion, thereby make down the rubbing wear campaign of 13 generations of sample 19 and last sample than large amplitude, the size of its friction force detects by force transducer 12.
Embodiment four: Fig. 8 is shown in Figure 9, and mechanism's ingredient is basic identical with embodiment two, and difference is that the connecting rod 26 of drive unit and the turntable 24 of telecontrol equipment directly are hinged and connected together, makes turntable 24 can do twisting than wide-angle.Drive unit is located near turntable 24 other, removes support 21 and the cantilever elastic plate 22 that is located on the support 21.Because the middle ratio amplifying element that has reduced the cantilever elastic plate is so can obtain the twisting campaign of relatively large angle.Following sample 19 is fixed on the turntable 24, turntable 24 is hinged with connecting rod 26, turntable 24 just twists together along with connecting rod 26, and in the twisting rubbing wear campaign of playing sample 19 and 13 generations of last sample than wide-angle, its torque detects by torque sensor 23.
Claims (5)
1. multifunctional micro friction wear testing machine, comprise drive unit, the telecontrol equipment that links to each other with drive unit, be located at the loading and the measurement mechanism of telecontrol equipment top, the lifting table that connects loading and measurement mechanism, it is characterized in that: described drive unit is made of the stepper motor (4) and the eccentric body (2) that are located at electric machine support (3) on the base plate (15), be installed on the electric machine support (3), eccentric body (2) links to each other with stepper motor (4), and eccentric body (2) lower end is provided with the connecting rod hinged with it (1); Described telecontrol equipment is made of the slide unit (14) that is located at the slide (16) on the base plate (15) and matches with it, or is made of the turntable (24) that is located at the bearing (25) on the base plate (15) and matches with it; Described loading and measurement mechanism comprise control desk (7), and control desk (7) has the coupling block (11) that links to each other with sensor, are provided with slide rail (10) between coupling block (11) and the control desk (7), and are provided with locating device; Described lifting table comprises the fixed mount (17) that is located on the base plate (15), the square guide rail (18) that provides loading and measurement mechanism to move up and down is provided in fixed mount (17) side, the top is provided with the stepper motor (5) of control ball-screw (6) motion, and ball-screw (6) links to each other with loading and measurement mechanism.
2. multifunctional micro friction wear testing machine according to claim 1 is characterized in that: described locating device is made of with the leading screw (9) that is connected with coupling block (11) stepper motor (8).
3. multifunctional micro friction wear testing machine according to claim 1, it is characterized in that: described drive unit is connected with second connecting rod (20) by first connecting rod (1) articulating boom elastic plate (22) with telecontrol equipment, or directly is hinged and connected by third connecting rod (26) and connects.
4. multifunctional micro friction wear testing machine according to claim 1 is characterized in that: it is force transducer (12) that described slide unit (14) is gone up corresponding loading and the sensor in the measurement mechanism that is provided with.
5. multifunctional micro friction wear testing machine according to claim 1 is characterized in that: it is torque sensor (23) that described turntable (24) is gone up corresponding loading and the sensor in the measurement mechanism that is provided with.
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| CN2006100976851A CN101017129B (en) | 2006-11-17 | 2006-11-17 | Multifunctional micro friction wear testing machine |
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| CN2006100976851A CN101017129B (en) | 2006-11-17 | 2006-11-17 | Multifunctional micro friction wear testing machine |
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| CN101017129A CN101017129A (en) | 2007-08-15 |
| CN101017129B true CN101017129B (en) | 2011-03-09 |
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| CN2006100976851A Expired - Fee Related CN101017129B (en) | 2006-11-17 | 2006-11-17 | Multifunctional micro friction wear testing machine |
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