CN105067467A - Frictional wear characteristic test device and method for joint curved junction surfaces - Google Patents
Frictional wear characteristic test device and method for joint curved junction surfaces Download PDFInfo
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- CN105067467A CN105067467A CN201510531282.2A CN201510531282A CN105067467A CN 105067467 A CN105067467 A CN 105067467A CN 201510531282 A CN201510531282 A CN 201510531282A CN 105067467 A CN105067467 A CN 105067467A
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Abstract
The invention relates to a frictional wear characteristic test device and method for joint curved junction surfaces. The test device comprises a friction test device body and a signal collecting, analyzing and processing system. The friction test device body is composed of a loading system, a test junction surface system, a guiding and supporting system, a signal detecting system and a supporting power system. Structural design with variable loads is adopted in a frictional wear characteristic test for the joint curved junction surfaces, a sensor detects torque signals in the rotating process to obtain frictional wear characteristics of the joint curved junction surfaces, and the test device is suitable for comparing and researching the frictional wear characteristics of the joint curved junction surfaces of different materials. As exchangeable parts to be tested are adopted, the frictional wear characteristics of the joint curved junction surfaces of the different materials can be measured through one test table, the use ratio of the test table is increased, the magnitude of loading force can be obtained visually, and the test device has great guiding significance in testing the frictional wear characteristics of the joint curved junction surfaces in engineering practice.
Description
Technical field
The present invention designs closes the test of pitch surface faying face friction and wear characteristic, adopt the structural design of variable loaded load, its torque signal in rotation process is detected by sensor, obtain the friction and wear characteristic of curved surface faying face, be applicable to the friction and wear characteristic of the comparative study not pass pitch surface faying face of same material, belong to curved surface faying face rubbing wear field of measuring technique.
Background technology
Along with industrial technology is towards higher level development, to the precision of plant equipment and the requirement of reliability more and more higher.Simultaneously, the exploration of various new material is also constantly being carried out, faying face is extensively present in all kinds of mechanical mechanism, be one of of paramount importance ingredient in plant equipment, the friction and wear characteristic obtaining certain new material pass pitch surface faying face has certain directive significance for the reliability seeking whole device.
At present, curved surface faying face is extensively present in various physical construction, the hinged pair of sphere in such as mechanism, bearing roller etc., for the curved surface faying face that not same material is made, need to obtain its friction and wear characteristic, and good and bad by the friction and wear behavior of contrast different materials curved surface faying face, directive significance is provided to the pass pitch surface faying face material type selecting in practical application, but not for the solution of this kind of problem in current engineer applied.Traditional curved surface faying face generally adopts specific several known materials, the assessment of its friction and wear characteristic often based on experience value, the test that the concrete testing equipment of neither one quantizes it, cause the actual rubbing wear of faying face and reliability and discreet value inaccurate, cause equipment to lose; In addition, although some testing table can measure the frictional behaviour of curved surface easily, but equipment is too simple, data are unreliable, and not there is good interchangeability, namely same testing table can not test the pass pitch surface faying face friction and wear characteristic of different materials, causes the problems such as the cost of testing table is high, and recycling rate of waterused is low.
Therefore, find a kind of can accurately, there is good interchangeability and the test unit that can realize the same test bed testing not curved surface faying face friction and wear characteristic of same material is significantly.
Summary of the invention
This device adopts the test specimen to be measured that can exchange, same testing table can measure the friction and wear characteristic of the pass pitch surface faying face of not same material, improve the utilization factor of testing table, testing table can apply the load of different size, and can obtain the size of loading force intuitively, apparatus structure is simple, convenient operation, reliability is strong, has good directive significance for the friction and wear characteristic closing pitch surface faying face in engineering practice.
A kind of pass pitch surface faying face friction and wear characteristic proving installation, this proving installation comprises friction testing arrangement and signal processing and analysis disposal system; Described friction testing arrangement is made up of loading system, test faying face system, guide support system, signal detection system, supporting motive force system.
Loading system is made up of loading bolt A (4), loading bolt B (28), loading nut A (3), loading nut B (6), loading guide rail A (2), loading guide rail B (5), loading bearing (7), spring base B (8), spring base A (12), loading spring (27), spindle nut (34) and loading mandrel (35); Loading nut A (3) with loading nut B (6) about loading mandrel (35) center is that diagonal line is symmetrically arranged in and loads on bearing (7); Another diagonal line loading bearing (7) is provided with threaded hole, and loading bolt A (4) and loading bolt B (28) precession threaded hole also load friction testing arrangement; Loading guide rail A (2) with loading guide rail B (5) about loading mandrel (35) center is that diagonal line is symmetrically arranged in and loads on bearing (7), and unthreaded hole is provided with on the correspondence position loading bearing (7), be fixed in by loading nut A (3) and loading nut B (6) and load on bearing (7); Spring base A (12) and spring base B (8) are positioned over respectively by shaft hole matching loads guide rail A (2), loads on guide rail B (5), and can slide along loading guide rail A (2), loading guide rail B (5); Load mandrel (35) is fixed on spring base A (12) center position by spindle nut (34), loading spring (27) is enclosed within and loads on mandrel (35), and is placed between spring base A (12) and spring base B (8); By precession loading bolt A (4) and loading bolt B (28) compression-loaded spring (27), the loading force of loading spring (27) is delivered to spring base B (8), thus realizes the object of loading.
Test faying face system is made up of guide rail bearing A (10), guide rail bearing B (26), guide rail A (11), guide rail B (24), guide rail nut A (9), guide rail nut B (25), lower bridge plate (13), axle (14), screw (32) and test specimen to be measured (33); Guide rail A (11) is connected on guide rail bearing A (10) by guide rail nut A (9); Guide rail B (24) is connected on guide rail bearing B (26) by guide rail nut B (25), lower bridge plate (13) is connected with guide rail A (11), guide rail B (24) by shaft hole matching, and lower bridge plate (13) is free to slide along guide rail A (11), guide rail B (24); The center position of lower bridge plate (13) has an arc ball-and-socket, and its radius size is identical with test specimen to be measured (33); By the loading force of loading system, test specimen to be measured (33) is fitted tightly with the arc ball-and-socket of lower bridge plate (13) center, test specimen to be measured (33) carries out connecting and fixing with axle (14) by radial screw (32), test specimen to be measured (33) is the part with good interchangeability, the test specimen to be measured (33) of not same material can be tested respectively, obtain the test figure under different operating mode.
Guide support system is made up of bearing seat (15), bearing A (29), shaft coupling D (23), axle sleeve (30) and bearing B (31); The side of bearing seat (15) is provided with the shaft shoulder, the outer ring of bearing B (31) withstands on shaft shoulder place, bearing B (31) and bearing A (29) are parallel to each other and arrange, distance between bearing B (31) with bearing A (29) is equal with the sectional dimension of axle sleeve (30), axle sleeve (30) is arranged between bearing A (29) and bearing B (31), the length of axle sleeve (30) should be at least three times of bearing A (29) thickness, makes the inner ring of the inner ring of bearing A (29) and bearing B (31) withstand on axle sleeve (30) respectively; During installation, by axle (14) successively through bearing A (29), axle sleeve (30) and bearing B (31), make the shaft shoulder of axle (14) withstand on the inner ring of bearing A (29), axle (14) is connected by singly-bound with shaft coupling D (23).
Signal detection system comprises shaft coupling C (22), dynamic torque sensor (16), sensor cushion block (21) and shaft coupling A (17) composition; Shaft coupling C (22) is connected by the side output shaft of singly-bound with dynamic torque sensor (16), shaft coupling A (17) is connected by the opposite side output shaft of singly-bound with dynamic torque sensor (16), sensor cushion block (21) being secured by bolts in the below of dynamic torque sensor (16), realizing the output shaft of dynamic torque sensor (16) and the concentricity of axle (14) by regulating the thickness of sensor cushion block (21).
Supporting motive force system is made up of lower shoe (1), motor cabinet (18), shaft coupling B (20) and motor (19); Motor (19) is coordinated with motor cabinet (18) by end flanges, and by bolt to being fixed both it, shaft coupling B (20) is connected by the output shaft of singly-bound with motor (19).
Lower shoe (1) is the support frame of whole pilot system, loading system is by the left side of bolt-connection to lower shoe (1), bearing seat (15) by bolt-connection on lower shoe (1), its mounting distance should with loading system and lower bridge plate (13), the distance of axle (14) is suitable, namely just can make under no-load condition, the arc ball-and-socket close contact of axle (14) and lower bridge plate (13), on the right side of bearing seat (15), sensor cushion block (21) by bolt-connection on lower shoe (1), be advisable just to make shaft coupling C (22) connect with shaft coupling D (23) in its installation site, by motor cabinet (18) by the rightmost side of bolt-connection to lower shoe (1), be advisable just to make shaft coupling A (17) connect with shaft coupling B (20) in its installation site, by regulating motor cabinet (18), sensor cushion block (21), bearing seat (15), guide rail bearing A (10), guide rail bearing B (26), load the position of bearing (7), ensure the output shaft of motor (19), dynamic torque sensor (16) output shaft, axle (14) is placed on same level line with the arc ball-and-socket of lower bridge plate (13).
Because the rigidity of loading spring (27) is known, so the loading force of loading system can obtain the size of concrete loading force by measuring the distance changing value loading front and back between spring base A (12) and spring base B (8).
Loading system is when loading, loading bolt A (4) and loading bolt B (28) should be made evenly to tighten simultaneously, ensure that spring base B (8) is at loading guide rail A (2) and loading guide rail B (5) horizontal sliding, not run-off the straight.
A kind of pass pitch surface faying face friction and wear characteristic proving installation, the transmittance process of this device loading force is, loading bolt A (4) and loading bolt B (28) is by screwing in, the mobile compression-loaded spring (27) of spring base B (8) can be promoted, loading force is made to be delivered to spring base A (12) by loading spring (27), spring base A (12) is by contacting with lower bridge plate (13), loading force is delivered to and closes pitch surface faying face place, and continue to pass to axle (14) to the right successively, bearing A (29), axle sleeve (30), bearing B (31), finally pass to bearing seat (15), loading force is unloaded on lower shoe (1), in whole loading procedure, dynamic torque sensor (16) and motor (19) do not bear axial force, thus extend the serviceable life of the two.
In signal processing and analysis disposal system, computing machine E1 sends work order, driver E3 is exported to by capture card E2, the signal received is carried out process and exports to motor (19) by driver E3, now motor (19) with specify speed running, by loading system, whole test unit is loaded, and the size of loading force is manually input in computing machine E1, the signal recorded is sent to computing machine E1 by capture card E2 by dynamic torque sensor (16), computing machine E1 is to torque signal, motor speed signal, loading force size is integrated, draw the size of moment of torsion under different loads and rotating speed, for the friction and wear characteristic of analysis of joint curved surface faying face provides data.
A kind of pitch surface faying face friction and wear characteristic proving installation that closes carries out pass pitch surface faying face friction and wear characteristic method of testing, and the method comprises the following steps,
Step1. detected materials is processed into the test specimen to be measured (33) of standard, if test needs to carry out under oil lubrication state, test specimen to be measured (33) the center oil storage hole made by porous oil-containing material is needed to add lubricating oil, leave standstill a period of time, until oil penetrates into outside surface, if tested under carrying out non-immersion oil state, then can omit this step;
Step2. test specimen to be measured (33) is fastenedly connected on axle (14) by screw (32), and the cambered surface ball-and-socket inside surface of the curved outer surface of test specimen to be measured (33) and lower bridge plate (13) center is cleaned out, avoid foreign material to exist;
Step3. by lower bridge plate (13) slippage to the right on guide rail A (11) and guide rail B (24), its cambered surface ball-and-socket is contacted completely with test specimen to be measured (33) outside surface;
Step4. switch on power, computing machine E1 provides instruction, makes motor (19) drive system with given rotation speed operation;
Step5. also tighten loading bolt A (4) and loading bolt B (28) uniformly simultaneously, ascending system to be loaded, by the time, during system stability, the numerical values recited of loading force is inputted in computing machine E1, and from computing machine E1, obtains the size of moment of torsion;
Step6. repeat previous step, convert different loading forces, obtain several groups of different curves;
Step7. by many suites line that computing machine is drawn, the friction and wear characteristic that namely can be the curved surface faying face analyzing this kind of material provides Data support.
Compared with prior art, tool of the present invention has the following advantages.
1, this apparatus structure is simple, and measuring method is simple and easy to do, and installation cost is low, has well economical.
The relevant components and parts such as the dynamic torque sensor 2, selected in this device, data collecting card are all products very ripe on the market, have good applicability, are convenient to safeguard, require low to environment for use, are sensor conventional in commercial production.
3, for the friction and wear characteristic of curved surface faying face measuring not same material, only need change test specimen to be measured, improve the utilization factor of same testing table.
4, this device loading system have employed the method for designing of spring, avoids the little stroke of direct bolt loading, the problem of large rigidity, adopts the mode of high rigid spring, can evenly load it easily.
5, experiment table can carry out the friction and wear characteristic test of the pass pitch surface faying face under glossy state and under non-glossy state respectively, has good versatility.
6, in device, loading force is unloaded on lower shoe the most at last, and sensor and motor shaft do not bear axial force, thus adds the serviceable life of motor and sensor.
7, in loading system, according to the position of two spring bases, the size of loading force can be measured intuitively.
Therefore, the present invention close pitch surface faying face friction and wear characteristic proving installation solve current in the pitch surface faying face friction and wear test of pass Problems existing, apply the friction and wear characteristic that this device can measure the pass pitch surface faying face of not same material convenient, accurately, and it is easy to operation, data are directly perceived, reliable.
Accompanying drawing explanation
Fig. 1 is measurement mechanism overall construction drawing;
Fig. 2 is loading system structural representation;
Fig. 3 is guide rail and guide rail bearing schematic diagram;
Fig. 4 is that lower bridge plate connects schematic diagram with test specimen cambered surface ball-and-socket to be measured;
Fig. 5 is axle and test specimen connection diagram to be measured;
Fig. 6 is that guide support system partly cuts open figure;
Fig. 7 is data collection and analysis disposal system block diagram.
In figure: 1, lower shoe, 2, load guide rail A, 3, load nut A, 4, loading bolt A, 5, load guide rail B, 6, load nut B, 7, load bearing, 8, spring base B, 9, guide rail nut A, 10, guide rail bearing A, 11, guide rail A, 12, spring base A, 13, lower bridge plate, 14, axle, 15, bearing seat, 16, dynamic torque sensor, 17, shaft coupling A, 18, motor cabinet, 19, motor, 20, shaft coupling B, 21, sensor cushion block, 22, shaft coupling C, 23, shaft coupling D, 24, guide rail B, 25, guide rail nut B, 26, guide rail bearing B, 27, loading spring, 28, loading bolt B, 29, bearing A, 30, axle sleeve, 31, bearing B, 32, screw, 33, test specimen to be measured, 34, spindle nut, 35, load mandrel.
Embodiment
Below in conjunction with accompanying drawing 1 ~ Fig. 7, the specific embodiment of the invention is described further:
A kind of pass pitch surface faying face friction and wear characteristic proving installation, this proving installation comprises friction testing arrangement and signal processing and analysis disposal system; Described friction testing arrangement is made up of loading system, test faying face system, guide support system, signal detection system, supporting motive force system.
Loading system is made up of loading bolt A (4), loading bolt B (28), loading nut A (3), loading nut B (6), loading guide rail A (2), loading guide rail B (5), loading bearing (7), spring base B (8), spring base A (12), loading spring (27), spindle nut (34) and loading mandrel (35); Loading nut A (3) with loading nut B (6) about loading mandrel (35) center is that diagonal line is symmetrically arranged in and loads on bearing (7); Another diagonal line loading bearing (7) is provided with threaded hole, and loading bolt A (4) and loading bolt B (28) precession threaded hole also load friction testing arrangement; Loading guide rail A (2) with loading guide rail B (5) about loading mandrel (35) center is that diagonal line is symmetrically arranged in and loads on bearing (7), and unthreaded hole is provided with on the correspondence position loading bearing (7), be fixed in by loading nut A (3) and loading nut B (6) and load on bearing (7); Spring base A (12) and spring base B (8) are positioned over respectively by shaft hole matching loads guide rail A (2), loads on guide rail B (5), and can slide along loading guide rail A (2), loading guide rail B (5); Load mandrel (35) is fixed on spring base A (12) center position by spindle nut (34), loading spring (27) is enclosed within and loads on mandrel (35), and is placed between spring base A (12) and spring base B (8); By precession loading bolt A (4) and loading bolt B (28) compression-loaded spring (27), the loading force of loading spring (27) is delivered to spring base B (8), thus realizes the object of loading.
Test faying face system is made up of guide rail bearing A (10), guide rail bearing B (26), guide rail A (11), guide rail B (24), guide rail nut A (9), guide rail nut B (25), lower bridge plate (13), axle (14), screw (32) and test specimen to be measured (33); Guide rail A (11) is connected on guide rail bearing A (10) by guide rail nut A (9); Guide rail B (24) is connected on guide rail bearing B (26) by guide rail nut B (25), lower bridge plate (13) is connected with guide rail A (11), guide rail B (24) by shaft hole matching, and lower bridge plate (13) is free to slide along guide rail A (11), guide rail B (24); The center position of lower bridge plate (13) has an arc ball-and-socket, and its radius size is identical with test specimen to be measured (33); By the loading force of loading system, test specimen to be measured (33) is fitted tightly with the arc ball-and-socket of lower bridge plate (13) center, test specimen to be measured (33) carries out connecting and fixing with axle (14) by radial screw (32), test specimen to be measured (33) is the part with good interchangeability, the test specimen to be measured (33) of not same material can be tested respectively, obtain the test figure under different operating mode.
Guide support system is made up of bearing seat (15), bearing A (29), shaft coupling D (23), axle sleeve (30) and bearing B (31); The side of bearing seat (15) is provided with the shaft shoulder, the outer ring of bearing B (31) withstands on shaft shoulder place, bearing B (31) and bearing A (29) are parallel to each other and arrange, distance between bearing B (31) with bearing A (29) is equal with the sectional dimension of axle sleeve (30), axle sleeve (30) is arranged between bearing A (29) and bearing B (31), the length of axle sleeve (30) should be at least three times of bearing A (29) thickness, makes the inner ring of the inner ring of bearing A (29) and bearing B (31) withstand on axle sleeve (30) respectively; During installation, by axle (14) successively through bearing A (29), axle sleeve (30) and bearing B (31), make the shaft shoulder of axle (14) withstand on the inner ring of bearing A (29), axle (14) is connected by singly-bound with shaft coupling D (23).
Signal detection system comprises shaft coupling C (22), dynamic torque sensor (16), sensor cushion block (21) and shaft coupling A (17) composition; Shaft coupling C (22) is connected by the side output shaft of singly-bound with dynamic torque sensor (16), shaft coupling A (17) is connected by the opposite side output shaft of singly-bound with dynamic torque sensor (16), sensor cushion block (21) being secured by bolts in the below of dynamic torque sensor (16), realizing the output shaft of dynamic torque sensor (16) and the concentricity of axle (14) by regulating the thickness of sensor cushion block (21).
Supporting motive force system is made up of lower shoe (1), motor cabinet (18), shaft coupling B (20) and motor (19); Motor (19) is coordinated with motor cabinet (18) by end flanges, and by bolt to being fixed both it, shaft coupling B (20) is connected by the output shaft of singly-bound with motor (19).
Lower shoe (1) is the support frame of whole pilot system, loading system is by the left side of bolt-connection to lower shoe (1), bearing seat (15) by bolt-connection on lower shoe (1), its mounting distance should with loading system and lower bridge plate (13), the distance of axle (14) is suitable, namely just can make under no-load condition, the arc ball-and-socket close contact of axle (14) and lower bridge plate (13), on the right side of bearing seat (15), sensor cushion block (21) by bolt-connection on lower shoe (1), be advisable just to make shaft coupling C (22) connect with shaft coupling D (23) in its installation site, by motor cabinet (18) by the rightmost side of bolt-connection to lower shoe (1), be advisable just to make shaft coupling A (17) connect with shaft coupling B (20) in its installation site, by regulating motor cabinet (18), sensor cushion block (21), bearing seat (15), guide rail bearing A (10), guide rail bearing B (26), load the position of bearing (7), ensure the output shaft of motor (19), dynamic torque sensor (16) output shaft, axle (14) is placed on same level line with the arc ball-and-socket of lower bridge plate (13).
Because the rigidity of loading spring (27) is known, so the loading force of loading system can obtain the size of concrete loading force by measuring the distance changing value loading front and back between spring base A (12) and spring base B (8).
Loading system is when loading, loading bolt A (4) and loading bolt B (28) should be made evenly to tighten simultaneously, ensure that spring base B (8) is at loading guide rail A (2) and loading guide rail B (5) horizontal sliding, not run-off the straight.
A kind of pass pitch surface faying face friction and wear characteristic proving installation, the transmittance process of this device loading force is, loading bolt A (4) and loading bolt B (28) is by screwing in, the mobile compression-loaded spring (27) of spring base B (8) can be promoted, loading force is made to be delivered to spring base A (12) by loading spring (27), spring base A (12) is by contacting with lower bridge plate (13), loading force is delivered to and closes pitch surface faying face place, and continue to pass to axle (14) to the right successively, bearing A (29), axle sleeve (30), bearing B (31), finally pass to bearing seat (15), loading force is unloaded on lower shoe (1), in whole loading procedure, dynamic torque sensor (16) and motor (19) do not bear axial force, thus extend the serviceable life of the two.
In signal processing and analysis disposal system, computing machine E1 sends work order, driver E3 is exported to by capture card E2, the signal received is carried out process and exports to motor (19) by driver E3, now motor (19) with specify speed running, by loading system, whole test unit is loaded, and the size of loading force is manually input in computing machine E1, the signal recorded is sent to computing machine E1 by capture card E2 by dynamic torque sensor (16), computing machine E1 is to torque signal, motor speed signal, loading force size is integrated, draw the size of moment of torsion under different loads and rotating speed, for the friction and wear characteristic of analysis of joint curved surface faying face provides data.
A kind of pitch surface faying face friction and wear characteristic proving installation that closes carries out pass pitch surface faying face friction and wear characteristic method of testing, and the method comprises the following steps,
Step1. detected materials is processed into the test specimen to be measured (33) of standard, if test needs to carry out under oil lubrication state, test specimen to be measured (33) the center oil storage hole made by porous oil-containing material is needed to add lubricating oil, leave standstill a period of time, until oil penetrates into outside surface, if tested under carrying out non-immersion oil state, then can omit this step;
Step2. test specimen to be measured (33) is fastenedly connected on axle (14) by screw (32), and the cambered surface ball-and-socket inside surface of the curved outer surface of test specimen to be measured (33) and lower bridge plate (13) center is cleaned out, avoid foreign material to exist;
Step3. by lower bridge plate (13) slippage to the right on guide rail A (11) and guide rail B (24), its cambered surface ball-and-socket is contacted completely with test specimen to be measured (33) outside surface;
Step4. switch on power, computing machine E1 provides instruction, makes motor (19) drive system with given rotation speed operation;
Step5. also tighten loading bolt A (4) and loading bolt B (28) uniformly simultaneously, ascending system to be loaded, by the time, during system stability, the numerical values recited of loading force is inputted in computing machine E1, and from computing machine E1, obtains the size of moment of torsion;
Step6. repeat previous step, convert different loading forces, obtain several groups of different curves;
Step7. by many suites line that computing machine is drawn, the friction and wear characteristic that namely can be the curved surface faying face analyzing this kind of material provides Data support.
The foregoing is only an example of the present invention, the size of test block, shape etc. can be treated and carry out suitable change, enable the friction and wear characteristic parameter measurement carrying out other curved surface faying faces, or drive motor changes other forms into, as long as can provide rotational power, its proving installation is similar to this example to method of testing.As long as its measurement mechanism Design of Mechanical Structure and overall measuring principle with the present invention describe consistent, the scope included by the present invention all should be considered as.
Claims (4)
1. close a pitch surface faying face friction and wear characteristic proving installation, it is characterized in that: this proving installation comprises friction testing arrangement and signal processing and analysis disposal system; Described friction testing arrangement is made up of loading system, test faying face system, guide support system, signal detection system, supporting motive force system;
Loading system is made up of loading bolt A (4), loading bolt B (28), loading nut A (3), loading nut B (6), loading guide rail A (2), loading guide rail B (5), loading bearing (7), spring base B (8), spring base A (12), loading spring (27), spindle nut (34) and loading mandrel (35); Loading nut A (3) with loading nut B (6) about loading mandrel (35) center is that diagonal line is symmetrically arranged in and loads on bearing (7); Another diagonal line loading bearing (7) is provided with threaded hole, and loading bolt A (4) and loading bolt B (28) precession threaded hole also load friction testing arrangement; Loading guide rail A (2) with loading guide rail B (5) about loading mandrel (35) center is that diagonal line is symmetrically arranged in and loads on bearing (7), and unthreaded hole is provided with on the correspondence position loading bearing (7), be fixed in by loading nut A (3) and loading nut B (6) and load on bearing (7); Spring base A (12) and spring base B (8) are positioned over respectively by shaft hole matching loads guide rail A (2), loads on guide rail B (5), and can slide along loading guide rail A (2), loading guide rail B (5); Load mandrel (35) is fixed on spring base A (12) center position by spindle nut (34), loading spring (27) is enclosed within and loads on mandrel (35), and is placed between spring base A (12) and spring base B (8); By precession loading bolt A (4) and loading bolt B (28) compression-loaded spring (27), the loading force of loading spring (27) is delivered to spring base B (8), thus realizes the object of loading;
Test faying face system is made up of guide rail bearing A (10), guide rail bearing B (26), guide rail A (11), guide rail B (24), guide rail nut A (9), guide rail nut B (25), lower bridge plate (13), axle (14), screw (32) and test specimen to be measured (33); Guide rail A (11) is connected on guide rail bearing A (10) by guide rail nut A (9); Guide rail B (24) is connected on guide rail bearing B (26) by guide rail nut B (25), lower bridge plate (13) is connected with guide rail A (11), guide rail B (24) by shaft hole matching, and lower bridge plate (13) is free to slide along guide rail A (11), guide rail B (24); The center position of lower bridge plate (13) has an arc ball-and-socket, and its radius size is identical with test specimen to be measured (33); By the loading force of loading system, test specimen to be measured (33) is fitted tightly with the arc ball-and-socket of lower bridge plate (13) center, test specimen to be measured (33) carries out connecting and fixing with axle (14) by radial screw (32), test specimen to be measured (33) is the part with good interchangeability, the test specimen to be measured (33) of not same material can be tested respectively, obtain the test figure under different operating mode;
Guide support system is made up of bearing seat (15), bearing A (29), shaft coupling D (23), axle sleeve (30) and bearing B (31); The side of bearing seat (15) is provided with the shaft shoulder, the outer ring of bearing B (31) withstands on shaft shoulder place, bearing B (31) and bearing A (29) are parallel to each other and arrange, distance between bearing B (31) with bearing A (29) is equal with the sectional dimension of axle sleeve (30), axle sleeve (30) is arranged between bearing A (29) and bearing B (31), the length of axle sleeve (30) should be at least three times of bearing A (29) thickness, makes the inner ring of the inner ring of bearing A (29) and bearing B (31) withstand on axle sleeve (30) respectively; During installation, by axle (14) successively through bearing A (29), axle sleeve (30) and bearing B (31), make the shaft shoulder of axle (14) withstand on the inner ring of bearing A (29), axle (14) is connected by singly-bound with shaft coupling D (23);
Signal detection system comprises shaft coupling C (22), dynamic torque sensor (16), sensor cushion block (21) and shaft coupling A (17) composition; Shaft coupling C (22) is connected by the side output shaft of singly-bound with dynamic torque sensor (16), shaft coupling A (17) is connected by the opposite side output shaft of singly-bound with dynamic torque sensor (16), sensor cushion block (21) being secured by bolts in the below of dynamic torque sensor (16), realizing the output shaft of dynamic torque sensor (16) and the concentricity of axle (14) by regulating the thickness of sensor cushion block (21);
Supporting motive force system is made up of lower shoe (1), motor cabinet (18), shaft coupling B (20) and motor (19); Motor (19) is coordinated with motor cabinet (18) by end flanges, and by bolt to being fixed both it, shaft coupling B (20) is connected by the output shaft of singly-bound with motor (19);
Lower shoe (1) is the support frame of whole pilot system, loading system is by the left side of bolt-connection to lower shoe (1), bearing seat (15) by bolt-connection on lower shoe (1), its mounting distance should with loading system and lower bridge plate (13), the distance of axle (14) is suitable, namely just can make under no-load condition, the arc ball-and-socket close contact of axle (14) and lower bridge plate (13), on the right side of bearing seat (15), sensor cushion block (21) by bolt-connection on lower shoe (1), be advisable just to make shaft coupling C (22) connect with shaft coupling D (23) in its installation site, by motor cabinet (18) by the rightmost side of bolt-connection to lower shoe (1), be advisable just to make shaft coupling A (17) connect with shaft coupling B (20) in its installation site, by regulating motor cabinet (18), sensor cushion block (21), bearing seat (15), guide rail bearing A (10), guide rail bearing B (26), load the position of bearing (7), ensure the output shaft of motor (19), dynamic torque sensor (16) output shaft, axle (14) is placed on same level line with the arc ball-and-socket of lower bridge plate (13),
Because the rigidity of loading spring (27) is known, so the loading force of loading system can obtain the size of concrete loading force by measuring the distance changing value loading front and back between spring base A (12) and spring base B (8);
Loading system is when loading, loading bolt A (4) and loading bolt B (28) should be made evenly to tighten simultaneously, ensure that spring base B (8) is at loading guide rail A (2) and loading guide rail B (5) horizontal sliding, not run-off the straight.
2. one according to claim 1 closes pitch surface faying face friction and wear characteristic proving installation, it is characterized in that: the transmittance process of this device loading force is, loading bolt A (4) and loading bolt B (28) is by screwing in, the mobile compression-loaded spring (27) of spring base B (8) can be promoted, loading force is made to be delivered to spring base A (12) by loading spring (27), spring base A (12) is by contacting with lower bridge plate (13), loading force is delivered to and closes pitch surface faying face place, and continue to pass to axle (14) to the right successively, bearing A (29), axle sleeve (30), bearing B (31), finally pass to bearing seat (15), loading force is unloaded on lower shoe (1), in whole loading procedure, dynamic torque sensor (16) and motor (19) do not bear axial force, thus extend the serviceable life of the two.
3. one according to claim 1 closes pitch surface faying face friction and wear characteristic proving installation, it is characterized in that: in signal processing and analysis disposal system, computing machine E1 sends work order, driver E3 is exported to by capture card E2, the signal received is carried out process and exports to motor (19) by driver E3, now motor (19) with specify speed running, by loading system, whole test unit is loaded, and the size of loading force is manually input in computing machine E1, the signal recorded is sent to computing machine E1 by capture card E2 by dynamic torque sensor (16), computing machine E1 is to torque signal, motor speed signal, loading force size is integrated, draw the size of moment of torsion under different loads and rotating speed, for the friction and wear characteristic of analysis of joint curved surface faying face provides data.
4. close pitch surface faying face friction and wear characteristic proving installation according to one according to claim 1, a kind of pitch surface faying face friction and wear characteristic proving installation that closes carries out pass pitch surface faying face friction and wear characteristic method of testing, it is characterized in that: the method comprises the following steps
Step1. detected materials is processed into the test specimen to be measured (33) of standard, if test needs to carry out under oil lubrication state, test specimen to be measured (33) the center oil storage hole made by porous oil-containing material is needed to add lubricating oil, leave standstill a period of time, until oil penetrates into outside surface, if tested under carrying out non-immersion oil state, then can omit this step;
Step2. test specimen to be measured (33) is fastenedly connected on axle (14) by screw (32), and the cambered surface ball-and-socket inside surface of the curved outer surface of test specimen to be measured (33) and lower bridge plate (13) center is cleaned out, avoid foreign material to exist;
Step3. by lower bridge plate (13) slippage to the right on guide rail A (11) and guide rail B (24), its cambered surface ball-and-socket is contacted completely with test specimen to be measured (33) outside surface;
Step4. switch on power, computing machine E1 provides instruction, makes motor (19) drive system with given rotation speed operation;
Step5. also tighten loading bolt A (4) and loading bolt B (28) uniformly simultaneously, ascending system to be loaded, by the time, during system stability, the numerical values recited of loading force is inputted in computing machine E1, and from computing machine E1, obtains the size of moment of torsion;
Step6. repeat previous step, convert different loading forces, obtain several groups of different curves;
Step7. by many suites line that computing machine is drawn, the friction and wear characteristic that namely can be the curved surface faying face analyzing this kind of material provides Data support.
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