CN104122198A - Friction liner-hoisting steel wire rope dynamic friction drive test device and friction liner-hoisting steel wire rope dynamic friction drive test method - Google Patents
Friction liner-hoisting steel wire rope dynamic friction drive test device and friction liner-hoisting steel wire rope dynamic friction drive test method Download PDFInfo
- Publication number
- CN104122198A CN104122198A CN201410271323.4A CN201410271323A CN104122198A CN 104122198 A CN104122198 A CN 104122198A CN 201410271323 A CN201410271323 A CN 201410271323A CN 104122198 A CN104122198 A CN 104122198A
- Authority
- CN
- China
- Prior art keywords
- wire rope
- friction
- friction lining
- dynamic
- steel wire
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a friction liner-hoisting steel wire rope dynamic friction drive test device and a friction liner-hoisting steel wire rope dynamic friction drive test method. The device comprises a base frame, a driving mechanism, a friction drive mechanism, a surrounding angle adjusting mechanism, a shock excitation mechanism, a steel wire rope and a condition monitoring mechanism, wherein the base frame comprises a stand column, a lower support platform and an upper support platform; the driving mechanism comprises a motor and a torque sensor; the friction drive mechanism comprises a friction wheel and a brake device; the surrounding angle adjusting mechanism comprises a C bracket and an adjusting wheel; the shock excitation mechanism comprises a transverse shock excitation mechanism and a longitudinal shock excitation mechanism; the condition monitoring mechanism comprises a steel wire rope tension monitoring device, a dynamic contact monitoring device, a steel wire rope vibration monitoring device and a micro-slippage monitoring device. After the device and the method are adopted, the dynamic friction drive characteristic between a friction liner and a hoisting steel wire rope can be simulated in a friction hoisting system when the hoisting steel wire rope is in a dynamic coupling vibration state, so that various changes in the friction drive process under the actions of transverse vibration, longitudinal vibration and transverse and longitudinal coupled vibration can be researched.
Description
Technical field
The present invention relates to a kind of friction lining-hoisting cable dynamic friction transmission test device and method.
Background technology
Mine hoist equipment is the essential transportation equipment in colliery, is the large-scale key equipment that promotes coal, spoil, personnel, various material and facilities along pit shaft, is the hinge that mine down-hole production system is connected with ground surface plant.Along with pit mining moves towards the requirement of deep and the safe and efficient production of modernization large-scale mine, the application of multi-rope friction hoisting machine is maximized increasingly, and large with its load-carrying capacity, hoisting depth is large, safety coefficient is high, and consumed power is low, and machine dimensions is little, the remarkable advantages such as low cost, by the mine hoisting for deep-well and super dark mine more and more.Along with the increase of the pit mining degree of depth, in order to improve the conevying efficiency of deep-well and super dark mine hoist, hoisting device is inevitable to large lifting load and the development of high pulling speed, this is also for the safety and reliability of large-scale friction winding equipment has proposed requirements at the higher level, particularly the abseiling of vertical shaft friction winding machine or the car accident of slipping, be the accident potential in vertical shaft friction winding machine.Once abseiling or the car that slips, its consequence is hardly imaginable, and the lighter causes container to damage, and hoisting cable is impaired, and severe one Hoisting System is scrapped, and pit shaft facility damages even casualties.
Multirope friction winder is to utilize the friction force between wire rope and friction lining to drive wire rope to rotate together with friction pulley, and realizes the lifting of container and transfer motion; Friction lining and wire rope form antithesis friction pair, and between the two, the height of friction factor directly affects the properties of hoister, as load-carrying capacity, work efficiency and security etc.In the time that friction drive hoist is normally worked, because liner and wire rope are all viscoelastic bodies, wire rope can only produce micro-elastic and slide and wriggle on liner; In the time occurring to slide between steel cable and liner, heat of friction will cause liner friction surface and internal temperature to raise, and make liner produce heat fading phenomenon, and the wearing and tearing of aggravation liner.Therefore, the dynamic viscoelastic friction mechanism of the friction factor between friction lining and wire rope, dynamic Contact and dynamic wriggling and slip state and friction lining and heat fading mechanism are on having important impact in friction drive hoist design.
In the lifting process of friction drive hoist, due to variable hoisting cable overhang length and the acting in conjunction of inertial load, hoisting cable upper carry acceleration, at the uniform velocity, in the lifting process of deceleration one-period, Hoisting System can be vibrated, wire rope also bears dynamic tension to be changed, particularly, in the acceleration, the decelerating phase that promote, the dynamic tension vibration of wire rope is larger, and vibration frequency increases along with reducing of rope capacity.Hoisting cable is as a vibrating mass, in the time that moving, hoister can produce transverse vibration, extensional vibration and the coupled vibrations of the two, this vibration likely causes that improper between wire rope and friction lining groove contacts, the dynamic state such as slippage and disengaging, thereby affect the friction driving power between friction lining and wire rope and occur skidding, cause the serious accident of friction drive hoist.Between friction lining and wire rope, the dynamic change of friction force also can aggravate the fluctuation of wire rope conversely simultaneously, thereby causes whole Hoisting System in the not steady running status of one.Therefore, the dynamic vibration state of wire rope is most important on the impact research of the friction gearing ability of hoister and friction traction stationarity.
So, propose a kind of friction lining-hoisting cable dynamic friction transmission test device and method, dynamic Contact probing into laterally, under extensional vibration and the two coupled vibrations effect between hoisting cable and friction lining, dynamically wriggling and friction factor, friction pulley be around entering end and laying out near the STRESS VARIATION of friction lining dynamic viscoelastic friction mechanism, friction lining and the hoisting cable contact region of dynamic tension evolution, friction lining of end wire rope.
Frictional experiment device between friction lining and wire rope comprises: the patent No. is 200510134988.1 to have announced the high-speed tester for friction between of a kind of liner and wire rope, use planar process to realize the stepless transformation of different relative slip velocitys (0.5m/s is to 6m/s) between wire rope and liner by control system, but, this testing machine can only be unidirectional at the uniform velocity slides, the friction gearing behavioral study under can not analog vibration state; The patent No. is 200810032468 to have announced a kind of elevator armored rope bending fatigue state experimental bench, can carry out the independent bending fatigue state of steel wire rope for elevator, combine bending fatigue state in the same way, oppositely combine the observation experiment of bending fatigue state, and can difference according to actual needs change multiple canoe, cornerite and tension force, but can not analyze dynamic Contact and friction gearing behavior between wire rope and friction lining; The patent No. is 201110436607.0 to have announced a kind of sliding friction testing machine of friction type winder liner, can research promote the comprehensive sliding friction behavior between steel wire and friction lining and receive sliding speed and slip acceleration affect rule, be wound in the dynamic wriggling (small Local Sliding) between friction lining and hoisting cable and the impact of slip state on friction pulley and study and can not probe into bending; The patent No. is 201220707814.5 to have announced a kind of friction type winder steel wire rope anti-skid device, make liner clamp hoisting cable by mobile Brake Block, the profile of tooth cross structure of liner can real-Time Compensation wire rope outside deterioration, avoid hoisting cable to occur dangerous slip, this testing machine is only studied the comprehensive sliding friction behavior between friction lining and wire rope, also can not investigate dynamic wriggling (small Local Sliding) and microslip behavior between friction lining and hoisting cable.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of friction lining-hoisting cable dynamic friction transmission test device and method, can simulate in friction hoisting system the dynamic friction drive characteristic between friction lining and hoisting cable under hoisting cable Dynamic Coupling vibrational state, can be used for probing into laterally, dynamic Contact between hoisting cable and friction lining in friction gearing process under extensional vibration and the two coupled vibrations effect, dynamically wriggle and friction factor, friction pulley is around entering end and lay out to hold the dynamic tension of wire rope to develop, the dynamic viscoelastic friction mechanism of friction lining and heat fading mechanism, near the STRESS VARIATION of friction lining friction lining and hoisting cable contact region, horizontal with dynamic monitoring, dynamic Contact under extensional vibration and the two coupled vibrations effect between hoisting cable and friction lining, dynamically wriggle and friction factor, friction pulley is around entering end and lay out to hold the dynamic tension of wire rope to develop, the dynamic viscoelastic friction mechanism of friction lining, near the STRESS VARIATION of friction lining friction lining and hoisting cable contact region.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of friction lining-hoisting cable dynamic friction transmission test device, comprises pedestal, driving mechanism, slip gear, encloses cornerite adjusting mechanism, exciting agency, wire rope and status monitoring mechanism;
Described pedestal comprises column, lower support platform and upper support platform, column is arranged symmetrically with, lower support platform is horizontally fixed on column, on lower support platform, evenly stationary cloth is equipped with bearing pin, on bearing pin, be arranged with spring, on lower support platform, be provided with the pin-and-hole corresponding with bearing pin position, lower support platform is set on bearing pin, by spring supporting; Between lower support platform and upper support platform, mounting spring is the elasticity factor in order to simulate actual friction hoisting system intermediate roll mounting base;
Described driving mechanism comprises motor and torque sensor, in upper support platform, be fixedly installed support of motor and A support, motor is arranged on support of motor, and torque sensor is arranged on A support, and the output shaft of motor connects A shaft coupling, torque sensor and B shaft coupling successively; Described torque sensor is for measuring the driving moment of motor output;
Described slip gear comprises friction pulley and band-type brake device, in upper support platform, be fixedly installed B support, on B support, be arranged symmetrically with bearing spider, bearing is all installed in each bearing spider, the central shaft both sides of friction pulley are fixed with the inner ring of two bearings respectively, and the central shaft of friction pulley is connected with B shaft coupling, and band-type brake device is fixedly mounted in support platform, and band-type brake device is used for holding tightly friction pulley; Have liner ring group in all side arrangement of friction pulley, in liner ring group week, the middle part of side is provided with arc groove, and liner ring group is spliced to friction lining end continuously by some, and every pair of relative amalgamation of friction lining forms a segmental arc of liner ring group;
The described cornerite adjusting mechanism that encloses comprises C support and regulating wheel, C support is fixed on lower support platform, is provided with some gears on C support, and regulating wheel is arranged on C support, by latch mechanism, regulating wheel is fixed on corresponding gear, regulating wheel and friction pulley are positioned on same perpendicular;
Described exciting agency comprises horizontal exciting agency and longitudinal exciting agency; Laterally exciting agency comprises vibrator, and vibrator is fixedly mounted on lower support platform below, on the output shaft of vibrator, is connected with pulley; Longitudinally exciting agency comprises heavy load piece and underload piece, and heavy load piece and underload piece are fixed with one group of orienting lug respectively, and guide wheel is installed on orienting lug, are installed with T shape guide rail on column, and guide wheel is arranged on formation guide rail guide wheel mechanism in T shape guide rail;
Described wire rope one end is connected with heavy load piece by A spring connector, and the other end walks around arc groove, after regulating wheel turns to, and by B spring connector connection underload piece, pulley and wire rope on vibrator output shaft fit tightly; Using A spring connector to be connected heavy load piece and underload piece with B spring connector can increase the elasticity of connection, regulates the gear of regulating wheel, i.e. angle of contact between adjustable friction pulley and wire rope;
Described status monitoring mechanism comprises steel wire rope tension monitoring device, dynamic Contact monitoring device, wire rope vibration monitoring device, microslip monitoring device, is installed with D support on lower support platform, steel wire rope tension monitoring device comprises magnetic flux type tension pick-up, magnetic flux type tension pick-up is arranged on D support, just to wire rope, adopt electromagnetic non-contact to detect principle, there is the feature of twisting thigh ripple according to wire rope, utilize the signal intensity of electromagnetic sensor to calculate steel wire rope tension, dynamic Contact monitoring device comprises laser displacement sensor and foil gauge, laser displacement sensor is arranged on D support, the just surface to top position wire rope, binding face place at every pair of friction lining is provided with hole slot, foil gauge is arranged in hole slot, foil gauge output line is connected with wireless strain sensing device, wireless strain sensing device welds together with the gusseted plate being fixed on friction pulley, dynamic strain value is transferred to computing machine by wireless strain sensing device, laser displacement sensor and foil gauge are respectively used to the contact stress between dynamic creep and friction lining and the wire rope of dynamic monitoring friction lining, can obtain the dynamic radial stroke of wire rope by indirect calculation, wire rope vibration monitoring device comprises the wireless three axis accelerometer being affixed on wire rope, for the horizontal and vertical vibration of measuring steel wire rope, microslip monitoring device comprises the high-speed camera instrument being fixed on D support, and high-speed camera instrument is just in the hole slot of friction lining, for monitoring the microslip state of dynamic friction transmission process friction lining and wire rope contact region.
Preferably, described bearing pin is fixedly mounted on lower support platform by helicitic texture.
Preferably, the number of described bearing pin is four, arranges symmetrically.
Preferably, the surface that described guide wheel contacts with T shape guide rail adopts elastomeric material, to increase contact resilient.
A kind of friction lining-hoisting cable dynamic friction transmission test method, comprises the steps:
(1) adjust regulating wheel position, obtain wire rope and enclose cornerite on friction pulley; Adjusting vibration exciter is to obtain horizontal exciting amplitude and the excited frequency set;
(2) first by frequency converter, motor is controlled and driven friction pulley to rotate, because friction gearing effect wire rope is mentioned heavy load piece built on stilts; Then stop motor operation, check friction pulley by band-type brake device and prevent its rotation; Record the initial tension value of friction pulley and the tangent place of wire rope region wire rope by magnetic flux type tension pick-up; Monitor the initial displacement value on wire rope top wire surface by laser displacement sensor; To foil gauge energising, record the initial contact stress between initial creep value and friction lining and the wire rope of friction lining; Record the local microslip initial value of friction lining and wire rope contact region by high-speed camera instrument;
(3) by frequency converter, motor is controlled, obtained the rope hoisting rate curve of setting; Stop the work of band-type brake device, open motor and vibrator; Record the dynamic tension of friction pulley and the tangent place of wire rope region wire rope in friction winding process by magnetic flux type tension pick-up; Monitor the change in displacement on wire rope top wire surface by laser displacement sensor, the contact stress recording in conjunction with overstrain sheet between dynamic creep and friction lining and the wire rope of friction lining changes; Record the local microslip amplitude of friction lining and wire rope contact region by high-speed camera instrument; By the horizontal and vertical vibration amplitude of wireless three axis accelerometer measuring steel wire rope; Measure the driving torque of friction pulley by torque sensor, indirectly obtain friction force and friction factor between friction lining and wire rope;
(4) in the time that the heavy load piece promoting reaches desired location, close motor and vibrator, open band-type brake device, stop experiment.
By changing motor frequency and the quality of rotating speed, heavy load piece and underload piece, excited frequency and amplitude, the horizontal level of regulating wheel and the kind of friction lining of vibrator, study different pulling speeies, promote acceleration, lifting weight, laterally exciting amplitude, wire rope are enclosed the dynamic friction transmission behavior between friction lining and wire rope under cornerite and gasket material condition around friction pulley; By stopping motor operation or vibrator work, the dynamic friction transmission behavior under research single vibration form between (horizontal or extensional vibration) friction lining and wire rope.
Beneficial effect: a kind of friction lining-hoisting cable dynamic friction transmission test device provided by the invention and method, can simulate in friction hoisting system the dynamic friction drive characteristic between friction lining and hoisting cable under hoisting cable Dynamic Coupling vibrational state, can be used for probing into laterally, dynamic Contact between hoisting cable and friction lining in friction gearing process under extensional vibration and the two coupled vibrations effect, local microslip amplitude and friction factor, friction pulley is around entering end and lay out to hold the dynamic tension of wire rope to develop, near the STRESS VARIATION of friction lining friction lining and hoisting cable contact region, horizontal with dynamic monitoring, dynamic characteristic of wriggling under extensional vibration and the two coupled vibrations effect between hoisting cable and friction lining and the dynamic viscoelastic friction mechanism of friction lining, this is horizontal to quantitatively characterizing, under coupled longitudinal vibration operating mode, the dynamic friction drive characteristic of wire rope-friction lining provides effective experimental facilities, it is easy and simple to handle, multiple functional, effective, has in the art practicality widely.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of structure of the present invention;
Fig. 2 is the left TV structure schematic diagram of structure of the present invention;
Fig. 3 (a) is that the A-A of friction lining position in Fig. 1 is to partial view;
Fig. 3 (b) is that the A-A of Fig. 1 high speed video camera position is to partial sectional view;
Wherein: 1, friction pulley; 2, band-type brake device; 3, regulating wheel; 4, C support; 5, underload piece; 6, heavy load piece; 7, vibrator; 8, wire rope; 9, magnetic flux type tension pick-up; 10, D support; 11, laser displacement sensor; 12, B shaft coupling; 13, torque sensor; 14, A shaft coupling; 15, motor; 16, A support; 17, support of motor; 18, bearing pin; 19, spring; 20, column; 21, T-shaped guide rail; 22, guide wheel; 23, wireless three axis accelerometer; 24, A spring connector; 25, lower support platform; 26, upper support platform; 27, B support; 28, bearing spider; 29, high-speed camera instrument; 30, foil gauge; 31, friction lining; 32, wireless strain sensing device; 33, gusseted plate.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 3 (a) and Fig. 3 (b) and be depicted as a kind of friction lining-hoisting cable dynamic friction transmission test device as shown in Figure 1, Figure 2,, comprise pedestal, driving mechanism, slip gear, enclose cornerite adjusting mechanism, exciting agency, wire rope 8 and status monitoring mechanism, illustrated with regard to various piece below.
Described pedestal comprises column 20, lower support platform 25 and upper support platform 26, column 20 is arranged symmetrically with, lower support platform 25 is horizontally fixed on column 20, on lower support platform 25, be equipped with four bearing pins 18 by the even stationary cloth of helicitic texture, on bearing pin 18, be arranged with spring 19, on lower support platform 26, be provided with the pin-and-hole corresponding with bearing pin 18 positions, lower support platform 26 is set on bearing pin 18, is supported by spring 19; Between lower support platform 25 and upper support platform 26, mounting spring 19 is the elasticity factors in order to simulate actual friction hoisting system intermediate roll mounting base.
Described driving mechanism comprises motor 15 and torque sensor 13, in upper support platform 26, be fixedly installed support of motor 17 and A support 16, motor 15 is arranged on support of motor 17, torque sensor 13 is arranged on A support 16, and the output shaft of motor 15 connects A shaft coupling 14, torque sensor 13 and B shaft coupling 12 successively; The driving moment that described torque sensor 13 is exported for measuring motor 15.
Described slip gear comprises friction pulley 1 and band-type brake device 2, in upper support platform 26, be fixedly installed B support 27, on B support 27, be arranged symmetrically with bearing spider 28, at the interior bearing that is all provided with of each bearing spider 28, the central shaft both sides of friction pulley 1 are fixed with the inner ring of two bearings respectively, and the central shaft of friction pulley 1 is connected with B shaft coupling 12, band-type brake device 2 is fixedly mounted in support platform 26, and band-type brake device 2 is for holding friction pulley 1 tightly; There is liner ring group in all side arrangement of friction pulley 1, in liner ring group week, the middle part of side is provided with arc groove, liner ring group is spliced to friction lining 31 ends continuously by some, and every pair of relative amalgamation of friction lining 31 forms a segmental arc of liner ring group.
The described cornerite adjusting mechanism that encloses comprises C support 4 and regulating wheel 3, C support 4 is fixed on lower support platform 25, on C support 4, be provided with some gears, regulating wheel 3 is arranged on C support 4, by latch mechanism, regulating wheel 3 is fixed on corresponding gear, regulating wheel 3 is positioned on same perpendicular with friction pulley 1.
Described exciting agency comprises horizontal exciting agency and longitudinal exciting agency; Laterally exciting agency comprises vibrator 7, and vibrator 7 is fixedly mounted on lower support platform 25 belows, on the output shaft of vibrator 7, is connected with pulley; Longitudinally exciting agency comprises heavy load piece 6 and underload piece 5, heavy load piece 6 and underload piece 5 are fixed with one group of orienting lug respectively, guide wheel 22 is installed on orienting lug, on column 20, be installed with T shape guide rail 21, guide wheel 22 is arranged on the interior formation guide rail guide wheel mechanism of T shape guide rail 21, the surface that guide wheel 22 contacts with T shape guide rail 21 adopts elastomeric material, to increase contact resilient.
Described wire rope 8 one end are connected with heavy load piece 6 by A spring connector 24, and the other end walks around arc groove, after regulating wheel 3 turns to, and connect underload piece 5 by B spring connector, and pulley and wire rope 8 on vibrator 7 output shafts fit tightly; Using A spring connector 24 to be connected heavy load piece 6 and underload piece 5 with B spring connector can increase the elasticity of connection, regulates the gear of regulating wheel 3, i.e. angle of contact between adjustable friction pulley 1 and wire rope 8.
Described status monitoring mechanism comprises steel wire rope tension monitoring device, dynamic Contact monitoring device, wire rope vibration monitoring device, microslip monitoring device, is installed with D support 10 on lower support platform 25, steel wire rope tension monitoring device comprises magnetic flux type tension pick-up 9, magnetic flux type tension pick-up 9 is arranged on D support 10, just to wire rope 8, adopt electromagnetic non-contact to detect principle, there is the feature of twisting thigh ripple according to wire rope 8, utilize the signal intensity of electromagnetic sensor to calculate steel wire rope tension, dynamic Contact monitoring device comprises laser displacement sensor 11 and foil gauge 30, laser displacement sensor 11 is arranged on D support 10, the just surface to top position wire rope 8, binding face place at every pair of friction lining 31 is provided with hole slot, foil gauge 30 is arranged in hole slot, foil gauge 30 output lines are connected with wireless strain sensing device 32, wireless strain sensing device 32 welds together with the gusseted plate 33 being fixed on friction pulley 1, laser displacement sensor 11 and foil gauge 30 are respectively used to the contact stress between dynamic creep and friction lining 31 and the wire rope 8 of dynamic monitoring friction lining 30, can obtain the dynamic radial stroke of wire rope by indirect calculation, wire rope vibration monitoring device comprises the wireless three axis accelerometer 23 being affixed on wire rope 8, for the horizontal and vertical vibration of measuring steel wire rope 8, microslip monitoring device comprises the high-speed camera instrument 25 being fixed on D support 10, and high-speed camera instrument 25 is just in the hole slot of friction lining 31, for monitoring the microslip state of dynamic friction transmission process friction lining 31 and wire rope 8 contact regions.
A kind of friction lining-hoisting cable dynamic friction transmission test method, comprises the steps:
(1) adjust regulating wheel 3 positions, obtain wire rope 8 and enclose cornerite on friction pulley 1; Adjusting vibration exciter 7 is to obtain horizontal exciting amplitude and the excited frequency set;
(2) first by frequency converter, motor 15 is controlled and driven friction pulley 1 to rotate, because friction gearing effect wire rope 8 is mentioned heavy load piece 6 built on stilts; Then stop motor 15 and turn round, check friction pulley 1 by band-type brake device 2 and prevent its rotation; Record the initial tension value of friction pulley 1 and the tangent place of wire rope 8 region wire rope 8 by magnetic flux type tension pick-up 9; Monitor the initial displacement value on wire rope 8 top wire surfaces by laser displacement sensor 11, foil gauge 30 is switched on, record the initial contact stress between initial creep value and friction lining 31 and the wire rope 8 of friction lining 31; Record the local microslip initial value of friction lining 31 and wire rope 8 contact regions by high-speed camera instrument 29;
(3) by frequency converter, motor 15 is controlled, obtained the wire rope 8 pulling speed curves of setting; Stop band-type brake device 2 and work, open motor 15 and vibrator 7; Record the dynamic tension of friction pulley in friction winding process 1 and the tangent place of wire rope 8 region wire rope 8 by magnetic flux type tension pick-up 9; Monitor the change in displacement on wire rope 8 top wire surfaces by laser displacement sensor 11, the contact stress that laser displacement sensor 11 and foil gauge 30 record between dynamic creep and friction lining 31 and the wire rope 8 of friction lining 31 changes; Recording friction lining 31 by high-speed camera instrument 29 changes with the local microslip of wire rope 8 contact regions; By the horizontal and vertical vibration amplitude of wireless three axis accelerometer 23 measuring steel wire ropes 8; Measure the driving torque of friction pulley 1 by torque sensor 13, indirectly obtain friction force and friction factor between friction lining 31 and wire rope 8;
(4) in the time that the heavy load piece 6 promoting reaches desired location, close motor 15 and vibrator 7, open band-type brake device 2, stop experiment.
By changing motor 15 frequencies and the quality of rotating speed, heavy load piece 6 and underload piece 5, excited frequency and amplitude, the horizontal level of regulating wheel 3 and the kind of friction lining 31 of vibrator 7, study different pulling speeies, promote acceleration, lifting weight, laterally exciting amplitude, wire rope are enclosed the dynamic friction transmission behavior between friction lining 31 and wire rope 8 under cornerite and gasket material condition around friction pulley; By stopping, motor 15 turns round or vibrator 7 is worked, the dynamic friction transmission behavior under research single vibration form between (horizontal or extensional vibration) friction lining 31 and wire rope 8.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. friction lining-hoisting cable dynamic friction transmission test device, is characterized in that: comprise pedestal, driving mechanism, slip gear, enclose cornerite adjusting mechanism, exciting agency, wire rope (8) and status monitoring mechanism;
Described pedestal comprises column (20), lower support platform (25) and upper support platform (26), column (20) is arranged symmetrically with, lower support platform (25) is horizontally fixed on column (20), be equipped with bearing pin (18) in the upper even stationary cloth of lower support platform (25), on bearing pin (18), be arranged with spring (19), on lower support platform (26), be provided with the pin-and-hole corresponding with bearing pin (18) position, lower support platform (26) is set on bearing pin (18), is supported by spring (19);
Described driving mechanism comprises motor (15) and torque sensor (13), in upper support platform (26), be fixedly installed support of motor (17) and A support (16), motor (15) is arranged on support of motor (17), it is upper that torque sensor (13) is arranged on A support (16), and the output shaft of motor (15) connects A shaft coupling (14), torque sensor (13) and B shaft coupling (12) successively; Described torque sensor (13) is for measuring the driving moment of motor (15) output;
Described slip gear comprises friction pulley (1) and band-type brake device (2), in upper support platform (26), be fixedly installed B support (27), on B support (27), be arranged symmetrically with bearing spider (28), in each bearing spider (28), bearing is all installed, the central shaft both sides of friction pulley (1) are fixed with the inner ring of two bearings respectively, and the central shaft of friction pulley (1) is connected with B shaft coupling (12), band-type brake device (2) is fixedly mounted in support platform (26), band-type brake device (2) is for holding friction pulley (1) tightly, there is liner ring group in all side arrangement of friction pulley (1), in liner ring group week, the middle part of side is provided with arc groove, liner ring group is spliced to friction lining (31) end continuously by some, and every pair of friction lining (31) is a segmental arc of amalgamation formation liner ring group relatively,
The described cornerite adjusting mechanism that encloses comprises C support (4) and regulating wheel (3), C support (4) is fixed on lower support platform (25), on C support (4), be provided with some gears, regulating wheel (3) is arranged on C support (4), by latch mechanism, regulating wheel (3) is fixed on corresponding gear, regulating wheel (3) is positioned on same perpendicular with friction pulley (1);
Described exciting agency comprises horizontal exciting agency and longitudinal exciting agency; Laterally exciting agency comprises vibrator (7), and vibrator (7) is fixedly mounted on lower support platform (25) below, on the output shaft of vibrator (7), is connected with pulley; Longitudinally exciting agency comprises heavy load piece (6) and underload piece (5), heavy load piece (6) and underload piece (5) are fixed with one group of orienting lug respectively, guide wheel (22) is installed on orienting lug, on column (20), be installed with T shape guide rail (21), guide wheel (22) is arranged on formation guide rail guide wheel mechanism in T shape guide rail (21);
Described wire rope (8) one end is connected with heavy load piece (6) by A spring connector (24), the other end walks around arc groove, after regulating wheel (3) turns to, connect underload piece (5) by B spring connector, pulley and wire rope (8) on vibrator (7) output shaft fit tightly;
Described status monitoring mechanism comprises steel wire rope tension monitoring device, dynamic Contact monitoring device, wire rope vibration monitoring device, microslip monitoring device, is installed with D support (10) on lower support platform (25), steel wire rope tension monitoring device comprises magnetic flux type tension pick-up (9), and magnetic flux type tension pick-up (9) is arranged on D support (10), just to wire rope (8), dynamic Contact monitoring device comprises laser displacement sensor (11) and foil gauge (30), laser displacement sensor (11) is arranged on D support (10), the just surface to top position wire rope (8), binding face place at every pair of friction lining (31) is provided with hole slot, foil gauge (30) is arranged in hole slot, foil gauge (30) output line is connected with wireless strain sensing device (32), wireless strain sensing device (32) welds together with the gusseted plate (33) being fixed on friction pulley (1), laser displacement sensor (11) and foil gauge (30) are respectively used to the contact stress between dynamic creep and friction lining (31) and the wire rope (8) of dynamic monitoring friction lining (30), wire rope vibration monitoring device comprises the wireless three axis accelerometer (23) being connected on wire rope (8), for the horizontal and vertical vibration of measuring steel wire rope (8), microslip monitoring device comprises the high-speed camera instrument (25) being fixed on D support (10), high-speed camera instrument (25) is just in the hole slot of friction lining (31), for monitoring the microslip state of dynamic friction transmission process friction lining (31) and wire rope (8) contact region.
2. friction lining-hoisting cable dynamic friction transmission test device according to claim 1, is characterized in that: described bearing pin (18) is fixedly mounted on lower support platform (25) by helicitic texture.
3. friction lining-hoisting cable dynamic friction transmission test device according to claim 1, is characterized in that: the number of described bearing pin (18) is four, arranges symmetrically.
4. friction lining-hoisting cable dynamic friction transmission test device according to claim 1, is characterized in that: the surface that described guide wheel (22) contacts with T shape guide rail (21) adopts elastomeric material.
5. friction lining-hoisting cable dynamic friction transmission test method, is characterized in that: comprise the steps:
(1) adjust regulating wheel (3) position, obtain wire rope (8) and enclose cornerite on friction pulley (1); Adjusting vibration exciter (7) is to obtain horizontal exciting amplitude and the excited frequency of setting;
(2) first by frequency converter, motor (15) is controlled and driven friction pulley (1) to rotate, because friction gearing effect wire rope (8) is mentioned heavy load piece (6) built on stilts; Then stop motor (15) running, check friction pulley (1) by band-type brake device (2) and prevent its rotation; Record the initial tension value of friction pulley (1) and wire rope (8) tangent place region wire rope (8) by magnetic flux type tension pick-up (9); By the initial displacement value on laser displacement sensor (11) monitoring wire rope (8) top wire surface; To foil gauge (30) energising, record the initial contact stress between initial creep value and friction lining (31) and the wire rope (8) of friction lining (31); Record the local microslip initial value of friction lining (31) and wire rope (8) contact region by high-speed camera instrument (29);
(3) by frequency converter, motor (15) is controlled, obtained wire rope (8) the pulling speed curve of setting; Stop band-type brake device (2) work, open motor (15) and vibrator (7); Record the dynamic tension of friction pulley in friction winding process (1) and wire rope (8) tangent place region wire rope (8) by magnetic flux type tension pick-up (9); By the change in displacement on laser displacement sensor (11) monitoring wire rope (8) top wire surface, record the contact stress variation between dynamic creep and friction lining (31) and the wire rope (8) of friction lining (31) in conjunction with foil gauge (30); Record the local microslip amplitude of friction lining (31) and wire rope (8) contact region by high-speed camera instrument (29); By the horizontal and vertical vibration amplitude of wireless three axis accelerometer (23) measuring steel wire rope (8); The driving torque of measuring friction pulley (1) by torque sensor (13), obtains friction force and friction factor between friction lining (31) and wire rope (8) indirectly;
(4) in the time that the heavy load piece (6) promoting reaches desired location, close motor (15) and vibrator (7), open band-type brake device (2), stop experiment.
6. friction lining-hoisting cable dynamic friction transmission test method according to claim 5, it is characterized in that: by changing motor (15) frequency and rotating speed, the quality of heavy load piece (6) and underload piece (5), excited frequency and the amplitude of vibrator (7), the kind of the horizontal level of regulating wheel (3) and friction lining (31), study different pulling speeies, promote acceleration, lifting weight, laterally exciting amplitude, wire rope encloses the dynamic friction transmission behavior between friction lining (31) and wire rope (8) under cornerite and gasket material condition around friction pulley, by stopping motor (15) running or vibrator (7) work, the dynamic friction transmission behavior under research single vibration form between friction lining (31) and wire rope (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271323.4A CN104122198B (en) | 2014-06-17 | 2014-06-17 | A kind of friction lining-hoisting cable dynamic friction transmission test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271323.4A CN104122198B (en) | 2014-06-17 | 2014-06-17 | A kind of friction lining-hoisting cable dynamic friction transmission test device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104122198A true CN104122198A (en) | 2014-10-29 |
| CN104122198B CN104122198B (en) | 2016-03-23 |
Family
ID=51767696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410271323.4A Active CN104122198B (en) | 2014-06-17 | 2014-06-17 | A kind of friction lining-hoisting cable dynamic friction transmission test device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104122198B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568738A (en) * | 2015-01-27 | 2015-04-29 | 中国矿业大学 | Connector-free steel wire rope and liner stepless speed change sliding friction tester and testing method |
| CN104591020A (en) * | 2014-11-13 | 2015-05-06 | 中国特种飞行器研究所 | Rope winch winding drum for lifting off and retracting of aerostat |
| CN104677816A (en) * | 2014-12-05 | 2015-06-03 | 中国矿业大学 | Impact friction test system for winding hoisting rope of kilometer deep shaft |
| CN104891317A (en) * | 2015-04-29 | 2015-09-09 | 南京梅山冶金发展有限公司 | Elevator rope coded disc butting device |
| WO2016119331A1 (en) * | 2015-01-30 | 2016-08-04 | 中国矿业大学 | Bending fatigue damage monitoring system for steel wire rope under action of corrosion-alternating load coupling |
| CN105842154A (en) * | 2016-03-22 | 2016-08-10 | 中国电力科学研究院 | Friction test device for steel wire rope |
| CN105910982A (en) * | 2016-06-24 | 2016-08-31 | 中国矿业大学 | Method for measuring friction coefficient of friction liner of hoister based on arc-surface method |
| WO2016141760A1 (en) * | 2015-03-10 | 2016-09-15 | 中国矿业大学 | Steel wire rope interlayer friction detection apparatus and method for winding-type hoist |
| CN106680005A (en) * | 2016-12-26 | 2017-05-17 | 中国矿业大学 | Dynamic monitoring device for braking process of high-speed elevator in kilometer-depth deep well |
| CN108489727A (en) * | 2018-06-19 | 2018-09-04 | 南京市特种设备安全监督检验研究院 | Dual slope reel steel wire ropes multi-lay winding system performance detection device and detection method |
| CN108956309A (en) * | 2018-10-10 | 2018-12-07 | 中国矿业大学 | Friction drive hoist wirerope load-carrying properties test device and method |
| CN109187333A (en) * | 2018-10-10 | 2019-01-11 | 中国矿业大学 | Mine hoisting friction lining non-skid property test device and method |
| CN109374325A (en) * | 2018-10-10 | 2019-02-22 | 中国矿业大学 | Pulley blocks formula vertical shaft hoisting joint debugging test device and method |
| CN109540366A (en) * | 2017-09-22 | 2019-03-29 | 上海龙钰电梯配件有限公司 | One kind being used for elevator governor stiction test macro |
| CN109932312A (en) * | 2018-07-19 | 2019-06-25 | 中国石油大学(华东) | Pipeline cleaner seal rubber disk testing device for friction coefficient and test method |
| CN110375944A (en) * | 2019-07-19 | 2019-10-25 | 中国矿业大学 | A kind of horizontal wirerope bending ejection impact vibration determination method and device |
| CN111103159A (en) * | 2019-12-31 | 2020-05-05 | 太原理工大学 | Friction type mine hoist test bed |
| CN112033844A (en) * | 2020-07-28 | 2020-12-04 | 成都飞机工业（集团）有限责任公司 | Multi-working-condition simulated aircraft wire harness abrasion experimental equipment and experimental method |
| CN112520535A (en) * | 2020-11-30 | 2021-03-19 | 中国矿业大学 | Multilayer winding steel wire rope vibration friction testing device and method |
| CN112520536A (en) * | 2020-11-30 | 2021-03-19 | 中国矿业大学 | Low-temperature vibration testing device and method for steel wire rope of winding type elevator |
| CN113092360A (en) * | 2021-03-30 | 2021-07-09 | 燕山大学 | Device and method for testing friction of arc-shaped surface under vibration condition |
| CN114354482A (en) * | 2021-11-25 | 2022-04-15 | 中国矿业大学 | Device and method for monitoring damage of steel wire rope-wheel groove roller and sliding friction coupling |
| CN114353861A (en) * | 2021-12-02 | 2022-04-15 | 中国矿业大学 | Comprehensive detection device and method for states of suspension cable and cable clamp of suspension bridge |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3614600A1 (en) * | 1985-05-11 | 1986-11-13 | Volkswagen AG, 3180 Wolfsburg | Friction clutch |
| CN1800823A (en) * | 2005-12-27 | 2006-07-12 | 中国矿业大学 | High-speed tester for friction between steel wire rope and liner |
| CN2854575Y (en) * | 2005-12-19 | 2007-01-03 | 中国矿业大学 | High-speed friction tester for wire rope and washer |
| CN101216397A (en) * | 2008-01-10 | 2008-07-09 | 上海交通大学 | Elevator armored rope bending fatigue state experimental bench |
| RU2364771C1 (en) * | 2007-12-26 | 2009-08-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction lining |
| CN102303803A (en) * | 2011-05-28 | 2012-01-04 | 赵强 | Sliding rope braking scheme and device for friction type hoist |
| CN102564939A (en) * | 2011-12-23 | 2012-07-11 | 中国矿业大学 | Gasket sliding friction testing machine for mine friction hoisting machine |
| CN202967995U (en) * | 2012-12-20 | 2013-06-05 | 大同煤矿集团有限责任公司 | Antiskid device of steel wire ropes of friction hoist |
-
2014
- 2014-06-17 CN CN201410271323.4A patent/CN104122198B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3614600A1 (en) * | 1985-05-11 | 1986-11-13 | Volkswagen AG, 3180 Wolfsburg | Friction clutch |
| CN2854575Y (en) * | 2005-12-19 | 2007-01-03 | 中国矿业大学 | High-speed friction tester for wire rope and washer |
| CN1800823A (en) * | 2005-12-27 | 2006-07-12 | 中国矿业大学 | High-speed tester for friction between steel wire rope and liner |
| RU2364771C1 (en) * | 2007-12-26 | 2009-08-20 | Открытое акционерное общество "Термостойкие изделия и инженерные разработки" (ОАО "ТИИР") | Friction lining |
| CN101216397A (en) * | 2008-01-10 | 2008-07-09 | 上海交通大学 | Elevator armored rope bending fatigue state experimental bench |
| CN102303803A (en) * | 2011-05-28 | 2012-01-04 | 赵强 | Sliding rope braking scheme and device for friction type hoist |
| CN102564939A (en) * | 2011-12-23 | 2012-07-11 | 中国矿业大学 | Gasket sliding friction testing machine for mine friction hoisting machine |
| CN202967995U (en) * | 2012-12-20 | 2013-06-05 | 大同煤矿集团有限责任公司 | Antiskid device of steel wire ropes of friction hoist |
Non-Patent Citations (2)
| Title |
|---|
| 张德坤: "矿井提升机用提升钢丝绳的微动磨损行为研究", 《摩擦学学报》, vol. 21, no. 5, 30 September 2001 (2001-09-30), pages 362 - 365 * |
| 葛世荣: "摩擦提升钢丝绳滑动的安全性及可靠性", 《中国矿业大学学报》, vol. 19, no. 1, 31 March 1990 (1990-03-31), pages 9 - 15 * |
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591020A (en) * | 2014-11-13 | 2015-05-06 | 中国特种飞行器研究所 | Rope winch winding drum for lifting off and retracting of aerostat |
| CN104677816A (en) * | 2014-12-05 | 2015-06-03 | 中国矿业大学 | Impact friction test system for winding hoisting rope of kilometer deep shaft |
| WO2016086863A1 (en) * | 2014-12-05 | 2016-06-09 | 中国矿业大学 | Wound lifting wire rope impact friction test system in a kilometer-deep well |
| CN104568738B (en) * | 2015-01-27 | 2017-04-26 | 中国矿业大学 | Connector-free steel wire rope and liner stepless speed change sliding friction tester and testing method |
| CN104568738A (en) * | 2015-01-27 | 2015-04-29 | 中国矿业大学 | Connector-free steel wire rope and liner stepless speed change sliding friction tester and testing method |
| WO2016119331A1 (en) * | 2015-01-30 | 2016-08-04 | 中国矿业大学 | Bending fatigue damage monitoring system for steel wire rope under action of corrosion-alternating load coupling |
| GB2540516A (en) * | 2015-03-10 | 2017-01-18 | Univ China Mining & Tech | Steel wire rope interlayer friction detection apparatus and method for winding-type hoist |
| WO2016141760A1 (en) * | 2015-03-10 | 2016-09-15 | 中国矿业大学 | Steel wire rope interlayer friction detection apparatus and method for winding-type hoist |
| GB2540516B (en) * | 2015-03-10 | 2020-07-08 | Univ China Mining | Apparatus and method for detecting interlayer friction of steel wire rope of winding-type hoist |
| AU2015383063B2 (en) * | 2015-03-10 | 2017-02-02 | China University Of Mining And Technology | Apparatus and method for detecting interlayer friction of steel wire rope of winding-type hoist |
| CN104891317B (en) * | 2015-04-29 | 2017-01-11 | 南京梅山冶金发展有限公司 | Elevator rope coded disc butting device |
| CN104891317A (en) * | 2015-04-29 | 2015-09-09 | 南京梅山冶金发展有限公司 | Elevator rope coded disc butting device |
| CN105842154A (en) * | 2016-03-22 | 2016-08-10 | 中国电力科学研究院 | Friction test device for steel wire rope |
| CN105910982B (en) * | 2016-06-24 | 2018-10-30 | 中国矿业大学 | A method of elevator friction lining friction coefficient is measured based on cambered surface method |
| CN105910982A (en) * | 2016-06-24 | 2016-08-31 | 中国矿业大学 | Method for measuring friction coefficient of friction liner of hoister based on arc-surface method |
| CN106680005A (en) * | 2016-12-26 | 2017-05-17 | 中国矿业大学 | Dynamic monitoring device for braking process of high-speed elevator in kilometer-depth deep well |
| CN109540366B (en) * | 2017-09-22 | 2024-03-15 | 上海龙钰电梯配件有限公司 | Static friction force testing system for elevator speed limiter |
| CN109540366A (en) * | 2017-09-22 | 2019-03-29 | 上海龙钰电梯配件有限公司 | One kind being used for elevator governor stiction test macro |
| CN108489727A (en) * | 2018-06-19 | 2018-09-04 | 南京市特种设备安全监督检验研究院 | Dual slope reel steel wire ropes multi-lay winding system performance detection device and detection method |
| CN109932312B (en) * | 2018-07-19 | 2021-05-28 | 中国石油大学(华东) | Device and method for testing friction coefficient of sealing rubber disc of pipeline cleaner |
| CN109932312A (en) * | 2018-07-19 | 2019-06-25 | 中国石油大学(华东) | Pipeline cleaner seal rubber disk testing device for friction coefficient and test method |
| CN109374325A (en) * | 2018-10-10 | 2019-02-22 | 中国矿业大学 | Pulley blocks formula vertical shaft hoisting joint debugging test device and method |
| WO2020073580A1 (en) * | 2018-10-10 | 2020-04-16 | 中国矿业大学 | Device and method for testing load-carrying properties of wire rope for friction hoist |
| WO2020073579A1 (en) * | 2018-10-10 | 2020-04-16 | 中国矿业大学 | Device and method for testing anti-slip performance of friction liner for mine hoisting |
| CN109187333B (en) * | 2018-10-10 | 2019-10-08 | 中国矿业大学 | Mine hoisting friction lining non-skid property test device and method |
| CN108956309A (en) * | 2018-10-10 | 2018-12-07 | 中国矿业大学 | Friction drive hoist wirerope load-carrying properties test device and method |
| CN109187333A (en) * | 2018-10-10 | 2019-01-11 | 中国矿业大学 | Mine hoisting friction lining non-skid property test device and method |
| CN110375944A (en) * | 2019-07-19 | 2019-10-25 | 中国矿业大学 | A kind of horizontal wirerope bending ejection impact vibration determination method and device |
| CN111103159B (en) * | 2019-12-31 | 2021-11-30 | 太原理工大学 | Friction type mine hoist test bed |
| CN111103159A (en) * | 2019-12-31 | 2020-05-05 | 太原理工大学 | Friction type mine hoist test bed |
| CN112033844A (en) * | 2020-07-28 | 2020-12-04 | 成都飞机工业（集团）有限责任公司 | Multi-working-condition simulated aircraft wire harness abrasion experimental equipment and experimental method |
| CN112520535A (en) * | 2020-11-30 | 2021-03-19 | 中国矿业大学 | Multilayer winding steel wire rope vibration friction testing device and method |
| CN112520536A (en) * | 2020-11-30 | 2021-03-19 | 中国矿业大学 | Low-temperature vibration testing device and method for steel wire rope of winding type elevator |
| CN113092360A (en) * | 2021-03-30 | 2021-07-09 | 燕山大学 | Device and method for testing friction of arc-shaped surface under vibration condition |
| CN114354482A (en) * | 2021-11-25 | 2022-04-15 | 中国矿业大学 | Device and method for monitoring damage of steel wire rope-wheel groove roller and sliding friction coupling |
| CN114354482B (en) * | 2021-11-25 | 2022-10-28 | 中国矿业大学 | Device and method for monitoring damage of steel wire rope-wheel groove roller and sliding friction coupling |
| CN114353861A (en) * | 2021-12-02 | 2022-04-15 | 中国矿业大学 | Comprehensive detection device and method for states of suspension cable and cable clamp of suspension bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104122198B (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104122198B (en) | A kind of friction lining-hoisting cable dynamic friction transmission test device and method | |
| CN103954553B (en) | The test unit of the dynamic micro tribology state of monitoring wire rope-friction lining and method | |
| RU2649036C2 (en) | System of monitoring of fatigue of material in bending for steel ropes with action of corrosion and variable load on them | |
| AU2016412018B2 (en) | Monitoring apparatus and method for dynamic contact state of multi-layer wound wire rope and drum in ultra-deep well | |
| CN104297046B (en) | A kind of steel wire multiaxis fretting fatigue testing device and method | |
| CN104261225B (en) | Test stand and method for ultra-deep mine hoisting systems | |
| CN102788730B (en) | Device for testing bending fatigue of wire rope for elevator, and testing method thereof | |
| CN102323161B (en) | Mechanical horizontal steel wire rope bending fatigue testing machine and mechanical rotation driving device | |
| CN104458566B (en) | A kind of steel wire rope high speed and fine motion friction test device | |
| CN105675280A (en) | Device and method for monitoring composite bending fatigue damages of main shaft of kilometer deep well elevator | |
| CN203551302U (en) | Winch whole-process working performance test device | |
| CN203786012U (en) | Test device for monitoring dynamic micro-friction state between steel wire rope and friction liner | |
| CN103940733A (en) | Microslip testing platform for friction liner of elevator | |
| CN109205428B (en) | Electrodeless rope type vertical shaft hoisting joint debugging test device and method | |
| CN109374325B (en) | Pulley blocks formula vertical shaft hoisting joint debugging test device and method | |
| CN102564939A (en) | Gasket sliding friction testing machine for mine friction hoisting machine | |
| CN108072533A (en) | A kind of experimental provision and method for detecting drag conveyor dynamic characteristic | |
| CN104677816B (en) | Impact friction test system for winding hoisting rope of kilometer deep shaft | |
| CN106680005A (en) | Dynamic monitoring device for braking process of high-speed elevator in kilometer-depth deep well | |
| CN107445003A (en) | Elevator load test combinations replace loading system and test method | |
| CN203534840U (en) | Tower-type air winch performance test and experiment platform | |
| KR101049031B1 (en) | A test apparatus of traction machine for elevator | |
| CN103983442B (en) | A kind of mechanical type speed limiter testing device | |
| CN110907299B (en) | Main cable multipoint variable load bending fatigue monitoring device and monitoring method thereof | |
| CN206223274U (en) | A kind of dynamic single-rail balance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |