WO2020073582A1 - 无极绳式立井提升联调测试装置及方法 - Google Patents
无极绳式立井提升联调测试装置及方法 Download PDFInfo
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- WO2020073582A1 WO2020073582A1 PCT/CN2019/075870 CN2019075870W WO2020073582A1 WO 2020073582 A1 WO2020073582 A1 WO 2020073582A1 CN 2019075870 W CN2019075870 W CN 2019075870W WO 2020073582 A1 WO2020073582 A1 WO 2020073582A1
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- loading
- damping
- radius positioning
- positioning
- brake
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- the invention relates to a joint debugging test device and method suitable for a vertical shaft hoist
- the vertical shaft hoist as the main mine hoisting equipment, has the important task of lifting coal gangue, lowering materials, lifting personnel and equipment, and is the connection hub between the underground coal mine and the ground.
- the joint adjustment test of the hoist refers to the joint installation of the spindle device (including reel, spindle, bearing seat), pad, brake system, etc. after successful installation, to jointly check whether the spindle device and brake system can adapt to normal and extreme working conditions.
- the vertical shaft hoist is a large-scale basic equipment installed at one time, especially the tower type vertical shaft hoist. Its on-site installation requires a large installation cost. Therefore, the joint debugging test before delivery needs to fully reflect the drive of the mine hoist, Braking performance, to avoid major installation and commissioning costs caused by secondary installation.
- the joint test of vertical shaft hoist is mainly no-load operation, that is, only the motor is used to drive the main shaft device to run idly, and no load test has been carried out.
- the braking performance of the brake cannot be accurately evaluated. Due to the diverse geological conditions of the coal mine, different demands are placed on the lifting load and lifting speed. As a result, many types of vertical shaft hoists with different drum diameters, drum wrapping angles, number of wire ropes, and wire rope spacing have been produced, resulting in It is difficult to adopt a unified device for machine performance testing, and constructing evaluation devices for shaft hoists of different specifications will incur significant construction and operating costs and will not meet economic needs. This makes it difficult for enterprises to build corresponding loading and braking detection platforms for various types of shaft hoists before leaving the factory. There is a lack of dedicated joint debugging test equipment, which mainly stays in theoretical calculation and three-dimensional mechanical simulation.
- the main focus is on the detection of active mines.
- the state monitoring method of deep well lifting equipment with application number CN201710531454.5 based on signal fusion can strip the fault signal from the mixed monitoring signal to monitor the operating state of the system .
- some researchers built a variety of test benches to test and improve the performance of the system.
- the ultra-deep mine lifting system test bench with authorization number ZL201410528414.1 uses the motor horizontal drag method to replace the vertical lifting conditions under actual working conditions.
- the multi-level simulation test platform of the ultra-deep mine hoisting system with authorization number ZL201610118998.4 can simulate the movement state of the ultra-deep mine hoisting equipment under actual working conditions, and obtain the main performance parameters of the hoisting equipment under faulty working conditions;
- the authorization number is ZL201410728399.5 kilometer deep well winding hoisting steel wire rope impact friction system can simulate the steel wire rope impact friction conditions under different rotation speed, acceleration, impact speed and contact specific pressure.
- the above research mainly has the following problems: First, it mainly conducts condition monitoring on the equipment in active service, but lacks the performance test of the vertical shaft lifting system before installation, and the latter can uniformly calibrate different types of vertical shaft lifting systems produced by various manufacturers before on-site installation.
- Nuclear avoid repeated testing investment of large production enterprises, improve the manufacturing quality of small production enterprises, and ensure the safety of the lifting system from the source; second, mainly for the detection of a single type of lifting system, can not effectively adapt to different reel diameters, rolls The hoisting system of the tube wrap angle, the number of steel wire ropes, and the spacing of the steel wire ropes; third, the lack of load testing before installation, the load bearing performance of the main shaft device, the anti-skid performance of the liner, and the braking performance of the brake cannot be accurately evaluated; fourth, Detection of in-service mines cannot effectively use the characteristic parameter changes of the main shaft device under no load and heavy load, which is an important feature for diagnosing abnormal deformation and cracks of the main shaft device, and can not simulate the jam, secondary Loading and other vicious working conditions, and the latter is to judge the main shaft device, friction pad, brake The system can withstand the extreme conditions of an important reference.
- a vertical shaft hoisting joint testing device which can carry out joint testing of the main shaft device, liner and brake system of different types of hoisting systems to simulate normal working conditions such as no load and heavy load, as well as jam , Secondary devices and other extreme working conditions, so as to accurately assess the bearing performance of the main shaft device, the anti-skid performance of the pad, and the brake performance of the brake, are of great significance for ensuring the safety of the shaft.
- the purpose of the present invention is to overcome the shortcomings in the prior art, and to provide a device and method for a stepless rope type vertical shaft hoisting joint testing device with a simple structure and both reliability and convenience.
- a stepless rope type shaft hoisting joint testing device of the present invention includes a guide wheel of a shaft hoist to be tested, a motor, a bearing housing, a main shaft, a drum, a brake disc, and a friction lining
- the main shaft device of the shaft hoist under test composed of a pad, a brake brake support plate and a brake brake; also includes a support foundation, a hydraulic loading device, a winding guide loading device and an infinite steel wire rope.
- the support foundation consists of two identical
- the sub-foundation is composed of two sub-foundations that are stepped and arranged symmetrically along the horizontal and horizontal intervals to form the I platform, II platform and III platform; on the I platform of the supporting foundation, the main shaft of the vertical shaft hoist is installed along the horizontal transverse stride
- the device is equipped with the guide wheel of the shaft hoist to be measured along the horizontal transverse straddle on the II platform of the supporting foundation; the hydraulic loading device is installed along the horizontal transverse straddling on the III platform of the supporting foundation; between the two sub-foundations of the supporting foundation
- the bottom of the inner side of the clamping wall is provided with a winding guide loading device along the horizontal direction, the axis of the winding guide loading device and the axis of the main shaft device are parallel to each other Line and on the same vertical plane;
- the hydraulic loading device includes a loading cylinder and a plurality of balancing cylinders.
- the loading cylinder includes a loading cylinder sleeve and a loading cylinder piston rod.
- a hydraulic loading support is provided on the front and back of the loading cylinder sleeve.
- the balance cylinders each include a balance cylinder sleeve and a balance cylinder piston rod; a plurality of balance cylinders are respectively fixed on one side of the rope pitch positioning plate via positioning fixtures, and the middle of the other side of the positioning plate is integrally connected with the loading cylinder piston rod ,
- the top of the piston rod of the balance cylinder is provided with a roller clamping plate, a loading roller is arranged in the middle of the roller clamping plate, a loading pad is arranged on the rim of the loading roller, a rope groove is arranged on the loading pad, and all balancing cylinders Of the pressure chambers are connected to each other through pipes;
- the winding guide loading device includes a damping loading device, a winding radius positioning device and a winding radius positioning plate; the winding radius positioning plate is in a semi-circular ring shape, and the two winding radius positioning plates are arranged horizontally and longitudinally opposite ,
- the winding radius positioning plate is provided with a plurality of rows of winding radius positioning holes along the circumferential direction of the inner ring, the damping loading device is arranged horizontally and laterally at both ends of the winding radius positioning plate through the winding radius positioning holes, and the winding radius positioning device passes through the winding
- the positioning holes around the radius are circumferentially arranged on the arc section of the winding radius positioning plate.
- the damping loading device includes a damping loading support, a damping loading handwheel, a damping loading screw nut, a damping loading screw, a damping loading clamping bolt, a damping loading support table, a damping loading main sliding table, a damping loading auxiliary sliding table , Damping loading clamping nut, bidirectional hydraulic pump, hydraulic pump main shaft, hydraulic pump coupling, damping loading countershaft, damping loading main shaft, damping loading fixed wheel, damping loading freewheel, damping loading cushion, damping loading radial Bearing and damping loading shaft support; the damping loading support platform is provided on the damping loading support, the damping loading handwheel, the damping loading screw nut and the damping loading screw are arranged coaxially, and the damping loading handwheel rotates to drive damping The loading screw rotates to push the damping loading screw nut forward and backward; the damping loading main sliding table is fixed to the damping loading screw nut, and can slide on the upper surface of the damping loading supporting table in the axial direction; the
- damping loading spindle is connected to the hydraulic pump spindle of a bidirectional hydraulic pump through a hydraulic pump coupling.
- the bidirectional hydraulic pump is fixed on one side of the damping loading main slide, and the other side of the damping loading spindle One end is installed coaxially with the damping loading radial bearing, the damping loading radial bearing is fixed on the damping loading shaft support, and the damping loading shaft support is fixed on the damping loading main slide on the other side;
- the damping The loading spindle is connected in series with a damping loading fixed wheel, the damping loading fixed wheel is fixed on the damping loading spindle, the number and spacing of the damping loading fixed wheels are equal to the number and spacing of the steel wire ropes of the tested spindle device;
- the damping loading There are two auxiliary slides, and the two opposite damping loading auxiliary slides are sandwiched by a damping loading auxiliary shaft, both ends of the damping loading auxiliary shaft are fixed on the damping loading shaft support, and the damping loading shaft support
- the number and spacing of the loaded traveling wheels are equal to the number and spacing of the steel wire ropes of the tested spindle device; the outer edges of the damped loaded fixed wheels and the damped loaded traveling wheels are provided with damping loading pads, and the damping loading pads There are rope grooves on the top; the damping loading main slide and the damping loading auxiliary slide are provided with collinear through holes on both sides, and the damping loading clamping bolt passes through the through hole from one end to load the damping loading main slide and the damping loading pair The sliding tables are connected together, and the other end of the damping-loading clamping bolt is tightened by the damping-loading clamping nut, so that the damping-loading fixed wheel and the damping-loading traveling wheel clamp the steel wire rope after being subjected to the squeezing force.
- the winding radius positioning device includes a radius positioning support, a radius positioning handwheel, a radius positioning screw nut, a radius positioning screw, a radius positioning support table, a radius positioning main slide table, a radius positioning shaft support, and a radius positioning shaft , Radius positioning tour wheel and radius positioning pad;
- the radius positioning support platform is set on the radius positioning support, the radius positioning hand wheel, radius positioning screw nut and radius positioning screw are coaxially installed, radius positioning hand
- the wheel rotation drives the radius positioning screw to rotate, which in turn pushes the radius positioning screw nut forward and backward;
- the radius positioning main slide is fixed to the radius positioning screw nut and can slide on the upper surface of the radius positioning support table in the axial direction;
- two radii A radius positioning shaft is arranged at the opposite middle clamp of the positioning main slide table, and both ends of the radius positioning shaft are respectively fixed to the radius positioning main slide table through a radius positioning shaft support;
- the radius positioning shaft is installed with a radius in series along the axial direction Locating the traveling wheel,
- the hole density of the winding radius positioning hole in the circumferential direction depends on the arc formed by the outer edges of the damping loading fixed wheel and the radius positioning traveling wheel, so as to meet the test requirements of different diameter spindle devices.
- the number of the multiple balancing cylinders is four or six, depending on the specifications of the spindle device under test.
- the rope pitch positioning plate is provided with four rows of pitch pitch positioning holes along the vertical direction at 200mm, 250mm, 300mm and 350mm, and another set of pitch pitch positioning holes with the same pitch is provided in the horizontal direction for setting Positioning fixture.
- the test method using the above-mentioned electrodeless vertical shaft hoisting joint testing device includes the following steps:
- the damping loading radial bearing is fixed on the damping loading shaft support, and the damping loading shaft support is fixed on the other side of the damping loading main sliding table.
- the damping loading clamping bolt is passed through the through hole from one end to connect the damping loading main sliding table and the damping loading auxiliary sliding table together, and the other end is pre-tightened by the damping loading clamping nut to assemble two damping loading devices;
- radius positioning Install the radius positioning in series in the axial direction on the radius positioning shaft
- Traveling wheel, radius positioning The traveling wheel rotates axially along the radius positioning axis; the radius positioning axis is set between the two opposite radial positioning main slides, and both ends of the radius positioning axis are respectively fixed to the radius positioning axis support
- On the radius positioning main slide several winding radius positioning devices are assembled, and the number of radius positioning devices depends on the diameter of the spindle device under test;
- the damping loading device is fixed to both ends of the winding radius positioning plate in the horizontal direction through the winding radius positioning hole, and the winding radius positioning device is fixed on the circular arc section of the winding radius positioning plate in the circumferential direction, according to the measured
- the diameter D of the hoisting shaft of the shaft hoist, and the rotation of the damping loading hand wheel drives the rotation of the damping loading screw, which in turn drives the damping loading screw nut to move forward and backward.
- the distance between the outer edge of the fixed wheel and the axis of the winding radius positioning plate is D. Place the lower part of the infinite steel wire rope in the rope groove of the damping loaded fixed wheel.
- r is the radius of the hydraulic pump spindle (2-a-k)
- the testing of the bearing performance of the main shaft device mainly includes crack detection and strength verification. At this time, the brake brake clamps the brake disc and shuts down the motor:
- the balance cylinder makes the tension of multiple electrodeless steel ropes the same, compares and analyzes whether the change of the elastic stress wave at the test point before and after loading exceeds the allowable threshold, and judges whether the elastic deformation of the corresponding position of the spindle device exceeds the standard, so as to judge whether the strength of the spindle device is qualified.
- the anti-skid performance test of the friction pads includes static friction test and dynamic friction test:
- the brake brake clamps the brake disc, shuts down the motor, simulates the difference in tension between the two sides of the steel rope under extreme conditions such as overload and secondary loading, and adjusts the oil output of the hydraulic loading device
- the oil pressure of the port and the oil pressure of the bidirectional hydraulic pump start the hydraulic loading device and the bidirectional hydraulic pump, and use the micro-displacement sensor to detect whether there is relative sliding between the infinite steel wire rope and the friction pad at this time, so as to judge the friction pad is static Whether it can meet the anti-skid requirements;
- the brake brake clamps the brake disc, shuts down the motor, simulates the tension difference between the steel wire rope on both sides of the reel under heavy load, and adjusts the oil pressure and bidirectional of the oil outlet of the hydraulic loading device
- the braking performance test of the brake mainly includes two aspects of static braking test and dynamic braking test:
- the brake brake clamps the brake disc, shuts down the motor, simulates the tension difference between the steel wire rope on both sides of the drum under extreme conditions, and adjusts the oil pressure of the oil outlet of the hydraulic loading device and The oil pressure of the two-way hydraulic pump starts the hydraulic loading device and the two-way hydraulic pump to detect whether there is relative sliding between the brake and the brake disc at this time, so as to determine whether the brake can effectively brake the spindle under static conditions Device
- the brake brake clamps the brake disc, shuts down the motor, simulates the tension difference between the steel wire rope on both sides of the reel under heavy load, and adjusts the oil pressure of the oil outlet of the hydraulic loading device And the hydraulic pressure of the two-way hydraulic pump, start the hydraulic loading device and the two-way hydraulic pump, start the motor, open the brake, the motor control drum starts at an angular acceleration a 1 and reaches the speed v, close the motor, start the brake To detect whether the brake brake's idle travel time and braking deceleration are within the allowable range, so as to determine whether the brake system can effectively brake the spindle device under dynamic conditions.
- the invention can reliably evaluate the bearing performance of the main shaft device, the anti-skid performance of the friction pad, and the braking performance of the brake. Aiming at the urgent need of joint shaft testing equipment for vertical shaft lifting, the load on both sides of the drum is simulated based on the principle of hydraulic cylinder top pressure wire rope and bidirectional hydraulic pump providing load damping, and the winding guide loading device based on screw drive is suitable for different drums The diameter and the balance cylinder that communicate with each other in the pressure chamber make the tension of multiple electrodeless steel ropes consistent.
- the rope pitch positioning plate is suitable for different numbers of steel ropes and the distance between the steel ropes, so it is suitable for a variety of vertical shaft hoists;
- the circulation method can well simulate different lifting distances and lifting speeds.
- the method of applying damping by hydraulic cylinder top pressure wire rope and bidirectional hydraulic pump can not only simulate normal working conditions such as no load, light load, heavy load, etc., but also simulate overload, Vicious extreme working conditions such as secondary heavy load, combined with acoustic emission sensors and micro-displacement sensors to reliably evaluate the bearing performance of the main shaft device, the anti-skid performance of the friction pads, and the braking performance of the brakes.
- Its structure is simple and versatile. Can carry out joint adjustment test on different types of vertical shaft hoist before installation on site, Stateful load testing, to ensure the safety of shaft hoist system is important.
- Figure 1 is a schematic diagram of the device structure of the present invention.
- FIG. 2 is a schematic structural view of the hydraulic loading device of the present invention
- Fig. 3 is a schematic diagram of the principle of positioning of the wire pitch of the present invention
- FIG. 4 is a schematic structural view of the winding guide loading device of the present invention.
- FIG. 6 is a schematic structural view of the winding radius positioning device of the present invention.
- FIG. 7 is a schematic diagram of the working principle of the present invention.
- a stepless rope type vertical shaft hoisting joint testing device is mainly composed of a supporting foundation 3, a hydraulic loading device 1, a winding guide loading device 2, a stepless steel wire rope 4, a guide wheel 13 of a shaft hoist to be tested,
- the main shaft device of the shaft hoist to be tested composed of the motor 7, the bearing seat 9, the main shaft 8, the reel 10, the brake disc 11, the friction pad 12, the brake brake support plate 5 and the brake brake 6;
- the supporting foundation 3 is composed of two identical sub-foundations.
- the two sub-foundations are stepped and are arranged symmetrically along the horizontal and horizontal intervals to form the I platform, the II platform and the III platform;
- the main shaft device of the installed vertical shaft hoist is installed on the straddle, and the guide wheel 13 of the vertical shaft hoist is installed on the horizontal platform of the supporting foundation 3;
- a hydraulic loading device 1 is provided; at the inner bottom of the sandwich wall between the two sub-foundations of the support foundation 3, a winding guide loading device 2 is provided along the horizontal and horizontal direction, and the axis of the winding guide loading device 2 and the axis of the main shaft device are parallel to each other and in On the same vertical plane.
- the hydraulic loading device 1 includes a loading cylinder and a plurality of balancing cylinders.
- the loading cylinder includes a loading cylinder sleeve 1-b and a loading cylinder piston rod 1-d.
- the loading cylinder sleeve 1 -The front and back of b are provided with hydraulic loading supports 1-c.
- the multiple balancing cylinders each include a balancing cylinder sleeve 1-i and a balancing cylinder piston rod 1-j; the multiple balancing cylinders are spaced by positioning fixtures 1-h It is fixed on one side of the pitch positioning plate 1-f, the middle of the other side of the positioning plate 1-f is connected with the loading cylinder piston rod 1-d, and the top of the balancing cylinder piston rod 1-j is provided with A roller clamping plate 1-k, a loading roller 1-m is provided in the middle of the roller clamping plate 1-k, a loading pad 1-n is provided on a rim of the loading roller 1-m, and the loading pad 1-n is provided There are rope grooves, and the pressure-bearing chambers of all balancing cylinders are connected to each other through pipelines.
- the rope pitch positioning plate 1-f is divided into four pitches of 200mm, 250mm, 300mm, and 350mm along the vertical direction with four rows of pitch pitch positioning holes 1-e, and the same pitch is set along the horizontal direction
- Another set of pitch positioning holes 1-e are used to set positioning fixtures 1-h; the number of the positioning fixtures 1-h is four or six, depending on the specifications of the spindle device under test.
- the winding guide loading device 2 is composed of a damping loading device 2-a, a winding radius positioning device 2-b, and a winding radius positioning plate 2-c; a winding radius positioning plate 2-c
- the two winding radius positioning plates 2-c are arranged horizontally and longitudinally, and the winding radius positioning plates 2-c are provided with a plurality of rows of winding radius positioning holes 2-ca along the circumferential direction of the inner ring
- a damping loading device 2-a is arranged horizontally and laterally at both ends of the winding radius positioning plate 2-c through the winding radius positioning hole 2-ca
- the winding radius positioning device 2-b is arranged along the circumferential direction through the winding radius positioning hole 2-ca
- the arc segment of the winding radius positioning plate 2-c The hole density of the winding radius positioning hole 2-ca in the circumferential direction depends on the circular arc formed by the outer edges of the damping loading fixed wheel 2-ao and the radius positioning traveling wheel 2-bi to adapt to different diameters
- the damping loading device 2-a includes a damping loading support 2-aa, a damping loading hand wheel 2-ab, a damping loading screw nut 2-ac, a damping loading screw 2-ad, a damping Load clamping bolt 2-ae, damping loading support table 2-af, damping loading main slide 2-ag, damping loading auxiliary slide 2-ah, damping loading clamping nut 2-ai, bidirectional hydraulic pump 2-aj, Hydraulic pump main shaft 2-ak, hydraulic pump coupling 2-al, damping loading countershaft 2-am, damping loading main shaft 2-an, damping loading fixed wheel 2-ao, damping loading floating wheel 2-ap, damping loading
- the pad 2-aq, the damping-loading radial bearing 2-ar and the damping-loading shaft support 2-as are constituted; the damping-loading support table 2-af is provided on the damping-loading support 2-aa, and the damping-loading hand wheel 2-ab ,
- the damping load screw nut 2-ac is
- the number and spacing of the damping loading walking wheel 2-ap are equal to the number and spacing of the steel wire ropes of the tested main shaft device; the damping loading fixed wheel 2 -Ao and the damping loaded tour wheel 2-ap are provided with damping loading pads 2-aq, and the damping loading pads 2-aq are provided with rope grooves; the damping loading main slide 2-ag and the damping loading auxiliary slip
- the table 2-ah is provided with collinear through holes on both sides, and the damping loading clamping bolt 2-ae passes through the through hole from one end to connect the damping loading main slide 2-ag and the damping loading auxiliary slide 2-ah at Together, and tighten the damping clamping nut 2-ai at the other end, so that the damping loading fixed wheel 2-ao and the damping loading walking wheel 2-ap can clamp the wire rope under a certain squeezing force.
- the winding radius positioning device 2-b includes a radius positioning support 2-ba, a radius positioning hand wheel 2-bb, a radius positioning screw nut 2-bc, and a radius positioning screw 2-bd ,
- Radius positioning support table 2-be radius positioning main slide table 2-bf, radius positioning shaft support 2-bg, radius positioning shaft 2-bh, radius positioning tour wheel 2-bi and radius positioning pad 2-bj Composition
- radius positioning support 2-be is set on the radius positioning support 2-ba
- the radius positioning hand wheel 2-bb, the radius positioning screw nut 2-bc and the radius positioning screw 2-bd are coaxially installed, and the radius positioning
- the rotation of the hand wheel 2-bb drives the rotation of the radius positioning screw 2-bd, which in turn pushes the radius positioning screw nut 2-bc to move back and forth
- the radius positioning main slide 2-bf is fixed to the radius positioning screw nut 2-bc, which can The axis slides on the upper surface of the radius positioning support 2-be; the two opposite radial positioning main slides 2-bf are sandwiche
- a testing method for stepless rope type vertical shaft hoisting includes the following steps:
- the hydraulic loading support 1-c is vertically installed on both ends of the loading cylinder liner 1-b, and the hydraulic loading positioning bolt 1-a is installed on both ends of the hydraulic loading support 1-c, and the loading cylinder piston rod 1- d The top of the d is installed with a pitch positioning plate 1-f.
- one end of the positioning jig 1-h with the same number of steel wire ropes is positioned via the pitch through the positioning pin 1-g
- the hole 1-e is fixed on the rope pitch positioning plate 1-f
- the other end of the positioning fixture 1-h is fixed with a balance cylinder sleeve 1-i
- the balance cylinder piston rod 1-j is equipped with a roller clamping plate 1-k at the top, and a roller clamping plate
- the loading roller 1-m is installed in the middle of 1-k
- the loading pad 1-n is installed on the rim of the loading roller 1-m
- the pressure chamber of the balancing cylinder is connected through the pipeline to assemble the hydraulic loading device 1;
- the number and spacing of the damping load walking wheel 2-ap are equal to the number and spacing of the steel wire ropes of the tested spindle device.
- the moving wheel 2-ap can rotate along the axis of the damping loading countershaft 2-am. Both ends of the damping loading countershaft 2-am are fixed to the damping loading shaft support 2-as, and the damping loading shaft support 2-as is fixed at On the damping loading sub-slide 2-ah, the damping loading clamping bolt 2-ae is passed through the through hole from one end to connect the damping-loading main sliding table 2-ag and the damping-loading auxiliary sliding table 2-ah together, and in another One end is pre-tightened by the damping loading clamping nut 2-ai and assembled into two damping loading devices 2-a;
- the radius positioning shaft 2-bh rotates axially; the two opposite radial positioning main slides 2-bf are sandwiched by a radius positioning shaft 2-bh, and both ends of the radius positioning shaft 2-bh pass through the radius positioning shaft support 2 -bg are respectively fixed to the radius positioning main slide 2-bf, assembled into several winding radius positioning devices 2-b, the number of which depends on the diameter of the spindle device under test;
- the damping loading device 2-a is fixed to both ends of the winding radius positioning plate 2-c in the horizontal direction through the winding radius positioning hole 2-ca, and the winding radius positioning device 2-b is fixed to the roll in the circumferential direction
- the arc segment around the radius positioning plate 2-c according to the diameter D of the reel 10 of the shaft hoist under test, turn the damping loading handwheel 2-ab to drive the damping loading screw 2-ad to rotate, and then push the damping loading screw nut 2-ac moves back and forth, at this time, the damping loading spindle 2-an moves back and forth along the radius of the winding radius positioning plate 2-c until the outer edge of the damping loading fixed wheel 2-ao is away from the axis of the winding radius positioning plate 2-c
- the center distance is D.
- r is the 2-a-k radius of the main shaft of the hydraulic pump
- the testing of the bearing performance of the spindle device mainly includes crack detection and strength verification.
- the brake 6 clamps the brake disc 11 and shuts down the motor 7: first, when detecting whether the spindle device has a crack, Install the acoustic emission sensor in the shell of the drum 10, the supporting ring, the reinforcing ribs, the spokes, and the riveting place of the main shaft 8 and other places where cracks are prone to simulate the force of the reel 10 under the no-load and heavy load of the main shaft device State, adjust the hydraulic pressure of the oil outlet of the hydraulic loading device 1 and the hydraulic pressure of the two-way hydraulic pump 2-aj, start the hydraulic loading device 1 and the two-way hydraulic pump 2-aj, the infinite wire rope 4 is tensioned, and the pressure chamber is connected The balance cylinder makes the tension of the multiple electrodeless steel ropes 4 the same.
- the hydraulic loading device 1 and the two-way hydraulic pump 2-aj are used to load the reel 10 within the range of the wrap angle.
- the position of the elastic deformation simulate the stress state of the reel 10 under extreme working conditions such as jamming and secondary loading of the spindle device, adjust the oil pressure of the oil outlet of the hydraulic loading device 1 and the oil pressure of the bidirectional hydraulic pump 2-aj Hydraulic pressure, starting hydraulic loading device 1 and bidirectional hydraulic pump 2-aj, stepless steel wire rope 4 tensioning, balancing cylinder connected to the pressure chamber makes the tension of multiple electrodeless steel wire ropes 4 the same, comparative analysis of elastic stress wave changes at the test points before and after loading Whether the allowable threshold is exceeded, to determine whether the elastic deformation of the corresponding
- (k) When testing the anti-skid performance of the friction pad, it mainly includes two aspects: static friction test and dynamic friction test: first, when the static friction test is performed, the brake 6 clamps the brake disc 11, the motor 7 is turned off, and the simulation volume The tension difference between the two sides of the steel wire rope of the barrel 10 under extreme conditions such as overload and secondary loading, adjust the oil pressure of the oil outlet of the hydraulic loading device 1 and the oil pressure of the bidirectional hydraulic pump 2-aj, and start the hydraulic loading device 1 And two-way hydraulic pump 2-aj, use micro-displacement sensor to detect whether there is relative sliding between the electrodeless wire rope 4 and the friction pad 12 at this time, so as to determine whether the friction pad can meet the anti-skid requirements under static conditions; second, when dynamic friction is performed During the test, the brake 6 clamps the brake disc 11, shuts off the motor 7, simulates the tension difference between the steel wire rope on both sides of the reel 10 under heavy load, and adjusts the oil pressure and bidirectional hydraulic pressure of the hydraulic loading device 1 The oil pressure of the pump 2-
- (l) When testing the braking performance of the brake, it mainly includes static braking test and dynamic braking test: first, when performing static braking test, the brake 6 clamps the brake disc 11, Turn off the motor 7, simulate the tension difference between the two sides of the steel wire rope of the reel 10 under extreme conditions, adjust the oil pressure of the oil outlet of the hydraulic loading device 1 and the oil pressure of the two-way hydraulic pump 2-aj, and start the hydraulic loading device 1 and the two-way hydraulic pump 2-aj, detect whether there is relative sliding between the brake 6 and the brake disc 11 at this time, so as to determine whether the brake 6 can effectively brake the spindle device under static conditions;
- the brake 6 clamps the brake disc 11, shuts down the motor 7, simulates the tension difference between the steel ropes on both sides of the drum 10 under heavy load, and adjusts the hydraulic loading device 1
- the oil pressure at the outlet and the oil pressure at the two-way hydraulic pump 2-aj start the hydraulic loading device 1 and the two-way hydraulic pump 2-aj, start the motor 7, open the brake 6, and the motor 7 controls the reel 10 at an angle
- the acceleration a 1 starts and reaches the speed v
- the motor 7 is turned off, the brake 6 is started, and the idle travel time of the brake and the brake deceleration are detected within the allowable range at this time, thereby judging that the brake system can dynamically Whether to effectively brake the spindle device;
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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- 一种无极绳式立井提升联调测试装置,包括被测立井提升机的导向轮(13)、由电动机(7)、轴承座(9)、主轴(8)、卷筒(10)、制动盘(11)、摩擦衬垫(12)、制动闸支撑板(5)和制动闸(6)构成的被测立井提升机的主轴装置;其特征在于:还包括支撑基础(3)、液压加载装置(1)、卷绕导向加载装置(2)和无极钢丝绳(4),所述的支撑基础(3)由两个相同的子基础构成,两子基础呈台阶状,沿水平横向间隔对称布置,构成Ⅰ平台、Ⅱ平台和Ⅲ平台;在所述支撑基础(3)的Ⅰ平台上沿水平横向骑跨安装被测立井提升机的主轴装置,在支撑基础(3)的Ⅱ平台上沿水平横向骑跨安装有被测立井提升机的导向轮(13);在支撑基础(3)的Ⅲ平台上沿水平横向骑跨设置有液压加载装置(1);在支撑基础(3)两子基础间的夹壁内侧底部沿水平横向设置有卷绕导向加载装置(2),所述卷绕导向加载装置(2)的轴线与主轴装置的轴线相互平行且在同一竖直平面上;所述的液压加载装置(1)包括一个加载缸和多个平衡缸,所述的加载缸包括加载缸缸套(1-b)和加载缸活塞杆(1-d),加载缸缸套(1-b)的前后设有液压加载支座(1-c),所述的多个平衡缸均包括平衡缸缸套(1-i)和平衡缸活塞杆(1-j);多个平衡缸分别经定位夹具(1-h)间隔固定在绳距定位板(1-f)的一侧,所述定位板(1-f)的另一侧中部与加载缸活塞杆(1-d)连为一体,所述平衡缸活塞杆(1-j)的顶端设置有滚轮夹板(1-k),所述滚轮夹板(1-k)中间设有加载滚轮(1-m),加载滚轮(1-m)的轮缘上设有加载衬垫(1-n),所述加载衬垫(1-n)上设有绳槽,所有平衡缸的承压腔通过管路相互连通;所述的卷绕导向加载装置(2)包括阻尼加载装置(2-a)、卷绕半径定位装置(2-b)和卷绕半径定位板(2-c);所述的卷绕半径定位板(2-c)呈半圆环状,两卷绕半径定位板(2-c)沿水平纵向对向布置,卷绕半径定位板(2-c)沿内环圆周方向设置有多排卷绕半径定位孔(2-c-a),阻尼加载装置(2-a)通过卷绕半径定位孔(2-c-a)沿水平横向布置在卷绕半径定位板(2-c)两端,卷绕半径定位装置(2-b)通过卷绕半径定位孔(2-c-a)沿周向布置在卷绕半径定位板(2-c)的圆弧段。
- 根据权利要求1所述的无极绳式立井提升联调测试装置,其特征在于:所述的阻尼加载装置(2-a)包括阻尼加载支座(2-a-a)、阻尼加载手轮(2-a-b)、阻尼加载丝杠螺母(2-a-c)、阻尼加载丝杠(2-a-d)、阻尼加载夹紧螺栓(2-a-e)、阻尼加载支撑台(2-a-f)、阻尼加载主滑台(2-a-g)、阻尼加载副滑台(2-a-h)、阻尼加载夹紧螺母(2-a-i)、双向液压泵(2-a-j)、液压泵主轴(2-a-k)、液压泵联轴器(2-a-l)、阻尼加载副轴(2-a-m)、阻尼加载主轴(2-a-n)、阻尼加载固定轮(2-a-o)、阻尼加载游动轮(2-a-p)、阻尼加载衬垫(2-a-q)、阻尼加载径向轴承(2-a-r)和阻尼加载轴支座(2-a-s);所述阻尼加载支撑台(2-a-f)设置在阻尼加载支座(2-a-a)上,所述阻尼加载手轮(2-a-b)、阻尼加载丝杠螺母(2-a-c)和阻尼加载丝杠(2-a-d)同轴布置,阻尼加载手轮(2-a-b)旋转带动阻尼加载丝杠(2-a-d)旋转,进而推动阻尼加载丝杠螺母(2-a-c)前后移动;所述阻尼加载主滑台(2-a-g)固定于阻尼加载丝杠螺母(2-a-c),能沿轴向在阻尼加载支撑台(2-a-f)上表面滑动;所述阻尼加载副滑台(2-a-h)能沿阻尼加载丝杠(2-a-d)轴向在阻尼加载支撑台(2-a-f)上表面自由滑动;相对的两个阻尼加载主滑台(2-a-g)中间夹持设置有阻尼加载主轴(2-a-n),所述阻尼加载主轴(2-a-n)的一端通过液压泵联轴器(2-a-l)连接到双向液压泵(2-a-j)的液压泵主轴(2-a-k)上,所述双向液压泵(2-a-j)固定在一侧的阻尼加载主滑台(2-a-g)上,阻尼加载主轴(2-a-n)的另一端与阻尼加载径向轴承(2-a-r)同轴安装,所述阻尼加载径向轴承(2-a-r)固定于阻尼加载轴支座(2-a-s)上,所述阻尼加载轴支座(2-a-s)固定在另一侧的阻尼加载主滑台(2-a-g)上;所述阻尼加载主轴(2-a-n)串接安装有阻尼加载固定轮(2-a-o),所述阻尼加载固定轮(2-a-o)固定在阻尼加载主轴(2-a-n)上,阻尼加载固定轮(2-a-o)的个数和间距等同于被测主轴装置钢丝绳的根数和间距;所述阻尼加载副滑台(2-a-h)为两个,两个相对的阻尼加载副滑台(2-a-h)中间夹持设置有阻尼加载副轴(2-a-m),阻尼加载副轴(2-a-m)的两端固定在阻尼加载轴支座(2-a-s)上,阻尼加载轴支座(2-a-s)固定在阻尼加载副滑台(2-a-h)上;所述阻尼加载副轴(2-a-m)沿轴向串接安装有阻尼加载游动轮(2-a-p),阻尼加载游动轮(2-a-p)能沿阻 尼加载副轴(2-a-m)轴向旋转,阻尼加载游动轮(2-a-p)的个数和间距等同于被测主轴装置钢丝绳的根数和间距;所述阻尼加载固定轮(2-a-o)和阻尼加载游动轮(2-a-p)的外缘上都设有阻尼加载衬垫(2-a-q),阻尼加载衬垫(2-a-q)上设有绳槽;阻尼加载主滑台(2-a-g)与阻尼加载副滑台(2-a-h)分别在两侧设有共线的通孔,阻尼加载夹紧螺栓(2-a-e)从一端穿过通孔将阻尼加载主滑台(2-a-g)与阻尼加载副滑台(2-a-h)连接在一起,阻尼加载夹紧螺栓(2-a-e)另一端通过阻尼加载夹紧螺母(2-a-i)拧紧,使阻尼加载固定轮(2-a-o)和阻尼加载游动轮(2-a-p)在受到挤压力后夹持钢丝绳。
- 根据权利要求1所述的无极绳式立井提升联调测试装置,其特征在于:所述的卷绕半径定位装置(2-b)包括半径定位支座(2-b-a)、半径定位手轮(2-b-b)、半径定位丝杠螺母(2-b-c)、半径定位丝杠(2-b-d)、半径定位支撑台(2-b-e)、半径定位主滑台(2-b-f)、半径定位轴支座(2-b-g)、半径定位轴(2-b-h)、半径定位游动轮(2-b-i)和半径定位衬垫(2-b-j);所述半径定位支撑台(2-b-e)设置在半径定位支座(2-b-a)上,所述半径定位手轮(2-b-b)、半径定位丝杠螺母(2-b-c)和半径定位丝杠(2-b-d)同轴安装,半径定位手轮(2-b-b)旋转带动半径定位丝杠(2-b-d)旋转,进而推动半径定位丝杠螺母(2-b-c)前后移动;所述半径定位主滑台(2-b-f)固定于半径定位丝杠螺母(2-b-c),能沿轴向在半径定位支撑台(2-b-e)上表面滑动;两个半径定位主滑台(2-b-f)相对的中间夹持设置有半径定位轴(2-b-h),所述半径定位轴(2-b-h)的两端通过半径定位轴支座(2-b-g)分别固定到半径定位主滑台(2-b-f)上;半径定位轴(2-b-h)沿轴向串接安装有半径定位游动轮(2-b-i),所述半径定位游动轮(2-b-i)能沿半径定位轴(2-b-h)轴向旋转,半径定位游动轮(2-b-i)的个数和间距等同于被测主轴装置钢丝绳的根数和间距;半径定位游动轮(2-b-i)的外缘设置有半径定位衬垫(2-b-j),半径定位衬垫(2-b-j)设置有绳槽。
- 根据权利要求1所述的无极绳式立井提升联调测试装置,其特征在于:所述的卷绕半径定位孔(2-c-a)沿圆周方向的孔密度取决于阻尼加载固定轮(2-a-o)和半径定位游动轮(2-b-i)的外缘围成的圆弧,以适应不同直径的主轴装置的测试需求。
- 根据权利要求1所述的无极绳式立井提升联调测试装置,其特征在于:所述的多个平衡缸的数量为四个或六个,取决于被测主轴装置的规格。
- 根据权利要求1所述的无极绳式立井提升联调测试装置,其特征在于:所述的绳距定位板(1-f)沿竖直方向分200mm、250mm、300mm和350mm四种间距设置有四列绳距定位孔(1-e),并沿水平方向设置同样间距的另一组绳距定位孔(1-e),用于设置定位夹具(1-h)。
- 一种使用权利要求1、2或3所述的无极绳式立井提升联调测试装置的测试方法,其特征在于包括如下步骤:(a)将液压加载支座(1-c)垂直安装于加载缸缸套(1-b)两端,在液压加载支座(1-c)两端安装有液压加载定位螺栓(1-a),加载缸活塞杆(1-d)顶端垂直安装有绳距定位板(1-f),依据被测主轴装置的钢丝绳根数和间距,通过定位销(1-g)将与钢丝绳根数相同数量的定位夹具(1-h)的一端经绳距定位孔(1-e)固定在绳距定位板(1-f)上,定位夹具(1-h)的另一端固定有平衡缸缸套(1-i),平衡缸活塞杆(1-j)顶端安装滚轮夹板(1-k),滚轮夹板(1-k)中间安装有加载滚轮(1-m),加载滚轮(1-m)的轮缘上安装加载衬垫(1-n),通过管路将平衡缸的承压腔连通,组装成液压加载装置(1);(b)在支撑基础(3)的Ⅲ平台上沿水平横向通过液压加载定位螺栓(1-a)骑跨安装液压加载装置(1);在支撑基础(3)的两子基础的夹壁内侧底部沿水平横向对向安装卷绕半径定位板(2-c),卷绕半径定位板(2-c)的轴线与主轴装置的轴线相互平行且在同一竖直平面上;(c)将阻尼加载支撑台(2-a-f)安装在阻尼加载支座(2-a-a)上,阻尼加载手轮(2-a-b)、阻尼加载丝杠螺母(2-a-c)和阻尼加载丝杠(2-a-d)同轴安装,将阻尼加载主滑台(2-a-g)固定在阻尼加载丝杠螺母(2-a-c)上,对阻尼加载固定轮(2-a-o)和阻尼加载游动轮(2-a-p)的外缘安装阻尼加载衬垫(2-a-q), 在阻尼加载主轴(2-a-n)串接安装阻尼加载固定轮(2-a-o),阻尼加载固定轮(2-a-o)的个数和间距等同于被测主轴装置钢丝绳的根数和间距,将阻尼加载固定轮(2-a-o)固定在阻尼加载主轴(2-a-n)上,阻尼加载主轴(2-a-n)的一端通过液压泵联轴器(2-a-l)连接到双向液压泵(2-a-j)的液压泵主轴(2-a-k)上,双向液压泵(2-a-j)固定在一侧的阻尼加载主滑台(2-a-g)上,阻尼加载主轴(2-a-n)的另一端与阻尼加载径向轴承(2-a-r)同轴安装,阻尼加载径向轴承(2-a-r)固定于阻尼加载轴支座(2-a-s),阻尼加载轴支座(2-a-s)固定在另一侧的阻尼加载主滑台(2-a-g)上,在阻尼加载副轴(2-a-m)沿轴向串接安装阻尼加载游动轮(2-a-p),阻尼加载游动轮(2-a-p)的个数和间距等同于被测主轴装置钢丝绳的根数和间距,阻尼加载游动轮(2-a-p)可沿阻尼加载副轴(2-a-m)轴向旋转,阻尼加载副轴(2-a-m)的两端固定在阻尼加载轴支座(2-a-s)上,阻尼加载轴支座(2-a-s)固定在阻尼加载副滑台(2-a-h)上,采用阻尼加载夹紧螺栓(2-a-e)从一端穿过通孔将阻尼加载主滑台(2-a-g)与阻尼加载副滑台(2-a-h)连接在一起,并在另一端通过阻尼加载夹紧螺母(2-a-i)进行预紧,组装成两个阻尼加载装置(2-a);(d)将半径定位支撑台(2-b-e)安装在半径定位支座(2-b-a)上,半径定位手轮(2-b-b)、半径定位丝杠螺母(2-b-c)和半径定位丝杠(2-b-d)同轴安装,将半径定位主滑台(2-b-f)固定在半径定位丝杠螺母(2-b-c)上,对半径定位游动轮(2-b-i)的外缘安装半径定位衬垫(2-b-j),半径定位游动轮(2-b-i)的个数和间距等同于被测主轴装置钢丝绳的根数和间距,在半径定位轴(2-b-h)沿轴向串接安装半径定位游动轮(2-b-i),半径定位游动轮(2-b-i)沿半径定位轴(2-b-h)轴向旋转;相对的两个半径定位主滑台(2-b-f)中间夹持设置有半径定位轴(2-b-h),半径定位轴(2-b-h)的两端通过半径定位轴支座(2-b-g)分别固定到半径定位主滑台(2-b-f)上,组装成若干个卷绕半径定位装置(2-b),半径定位装置(2-b)的数量取决于被测主轴装置的直径;(e)在支撑基础(3)的Ⅰ平台上沿水平横向骑跨安装被测立井提升机的主轴装置,轴承座(9)沿水平横向骑跨安装在支撑基础(3)的Ⅰ平台上,电动机(7)、主轴(8)、卷筒(10)同轴安装,制动盘(11)安装在卷筒(10)外缘,将摩擦衬垫(12)沿周向压在卷筒(10)外壳上,制动闸支撑板(5)沿水平横向骑跨安装在支撑基础(3)的Ⅰ平台上且分布在主轴装置两侧,在制动闸支撑板(5)上沿制动盘(11)轮缘周向安装制动闸(6),使其在动作时能够夹持制动盘(11),从而制动主轴装置,在支撑基础(3)的Ⅱ平台上沿水平横向骑跨安装有被测立井提升机的导向轮(13);(f)将无极钢丝绳(4)依次穿过卷筒(10)、导向轮(13)和卷绕导向加载装置(2),将无极钢丝绳(4)的上部安放在卷筒(10)外壳的摩擦衬垫(12)和导向轮(13)的绳槽中,无极钢丝绳(4)的下部垂放在卷绕半径定位板(2-c)***;(g)通过卷绕半径定位孔(2-c-a)将阻尼加载装置(2-a)沿水平横向固定在卷绕半径定位板(2-c)两端,将卷绕半径定位装置(2-b)沿周向固定在卷绕半径定位板(2-c)的圆弧段,依据被测立井提升机的卷筒(10)直径D,转动阻尼加载手轮(2-a-b)带动阻尼加载丝杠(2-a-d)旋转,进而推动阻尼加载丝杠螺母(2-a-c)前后移动,此时阻尼加载主轴(2-a-n)沿卷绕半径定位板(2-c)径向前后移动,直到阻尼加载固定轮(2-a-o)的外缘距离卷绕半径定位板(2-c)的轴心距离为D,将无极钢丝绳(4)的下部安放在阻尼加载固定轮(2-a-o)的绳槽内,转动半径定位手轮(2-b-b)带动半径定位丝杠(2-b-d)旋转,进而推动半径定位丝杠螺母(2-b-c)前后移动,此时半径定位轴(2-b-h)沿卷绕半径定位板(2-c)径向前后移动,直到半径定位游动轮(2-b-i)的外缘距离卷绕半径定位板(2-c)的轴心距离为D,使无极钢丝绳(4)的下部安放在半径定位游动轮(2-b-i)的绳槽内;(h)以小油压调整加载缸出油口油压,启动液压加载装置(1),控制加载缸活塞杆(1-d)伸出,加载滚轮(1-m)顶压无极钢丝绳(4)进行预张紧,此时无极钢丝绳(4)通过摩擦衬垫(12)、导向轮(13)、阻尼加载衬垫(2-a-q)和半径定位衬垫(2-b-j)的绳槽形成闭环,拧紧阻尼加载夹紧螺栓(2-a-e))使阻 尼加载固定轮(2-a-o)和阻尼加载游动轮(2-a-p)能够紧密夹持无极钢丝绳(4),此时双向液压泵(2-a-j)在无极钢丝绳(4)传动时提供负载阻尼;(i)设定加载滚轮(1-m)的作用点距离卷筒(10)钢丝绳接触点和阻尼加载固定轮(2-a-o)钢丝绳接触点的垂直距离相等,调整加载缸出油口油压和双向液压泵(2-a-j)压油口油压,加载缸以力F作用在无极钢丝绳(4),双向液压泵以扭矩M作用在无极钢丝绳(4),此时无极钢丝绳(4)与竖直方向的角度为α,设定此时需要模拟无极钢丝绳(4)逆时针循环运行,那么上升侧和下降侧的无极钢丝绳(4)的张力为:式中:r为液压泵主轴(2-a-k)的半径,从而模拟卷筒(10)轻重载侧负载,进而模拟卷筒(10)在多种工况下的两侧负载;(j)分别进行主轴装置承载性能测试、摩擦衬垫防滑性能测试、制动闸制动性能测试,最终完成被测立井提升机的联调测试,对主轴装置承载性能、摩擦衬垫防滑性能、制动闸制动性能进行可靠的评估。
- 根据权利要求7所述的无极绳式立井提升联调测试方法,其特征在于:所述进行主轴装置承载性能的测试,主要包括裂纹检测和强度校核两方面,此时制动闸(6)夹紧制动盘(11)、关停电动机(7):第一,当检测主轴装置是否有裂纹时,将声发射传感器安装在卷筒(10)的筒壳、支环、加强筋、辐板以及主轴(8)的铆接处等易于产生裂纹的位置,模拟主轴装置在空载和重载下卷筒(10)的受力状态,调整液压加载装置(1)的出油口油压和双向液压泵(2-a-j)的压油口油压,启动液压加载装置(1)和双向液压泵(2-a-j),无极钢丝绳(4)张紧,承压腔连通的平衡缸使多根无极钢丝绳(4)的张力相同,利用液压加载装置(1)联合双向液压泵(2-a-j)对卷筒(10)在围包角范围内进行加载,对比分析加载前后检测点的弹性应力波是否剧变,判断主轴装置相应位置是否存在裂纹;第二,当检测主轴装置强度是否满足要求时,将声发射传感器安装在卷筒(10)的筒壳、辐板以及主轴(8)两端等易于产生弹性变形的位置,模拟主轴装置在卡罐、二次装载等极端工况下卷筒(10)的受力状态,调整液压加载装置(1)的出油口油压和双向液压泵(2-a-j)的压油口油压,启动液压加载装置(1)和双向液压泵(2-a-j),无极钢丝绳(4)张紧,承压腔连通的平衡缸使多根无极钢丝绳(4)的张力相同,对比分析加载前后检测点的弹性应力波变化是否超出允许阈值,判断主轴装置相应位置弹性变形是否超标,从而判断主轴装置的强度是否合格。
- 根据权利要求7所述的无极绳式立井提升联调测试方法,其特征在于:所述进行摩擦衬垫防滑性能测试,主要包括静摩擦测试和动摩擦测试两方面:第一,当进行静摩擦测试时,制动闸(6)夹紧制动盘(11),关停电动机(7),模拟卷筒(10)在超载、二次装载等极端工况下的两侧钢丝绳张力差,调整液压加载装置(1)的出油口油压和双向液压泵(2-a-j)的压油口油压,启动液压加载装置(1)和双向液压泵(2-a-j),利用微位移传感器检测此时无极钢丝绳(4)与摩擦衬垫(12)之间是否发生相对滑动,从而判断摩擦衬垫在静态下能否满足防滑要求;第二,当进行动摩擦测试时,制动闸(6)夹紧制动盘(11),关停电动机(7),模拟卷筒(10)在重载工况下的两侧钢丝绳张力差,调整液压加载装置(1)的出油口油压和双向液压泵(2-a-j)的压油口油压,启动液压加载装置(1)和双向液压泵(2-a-j),启动电动机(7),打开制动闸(6),电动机(7)控制卷筒(10)以角加速度a 1启动和角减速度a 2停止,利用微位移传感器检测此时无极钢丝绳(4)与摩擦衬垫(12) 之间的蠕动滑移量在相应角加速度下是否在允许范围内,从而判断摩擦衬垫(12)在动态下能否满足防滑要求;
- 根据权利要求7所述的无极绳式立井提升联调测试方法,其特征在于:所述制动闸制动性能测试,主要包括静态制动测试和动态制动测试两方面:第一,当进行静态制动测试时,制动闸(6)夹紧制动盘(11),关停电动机(7),模拟卷筒(10)在极端工况下的两侧钢丝绳张力差,调整液压加载装置(1)的出油口油压和双向液压泵(2-a-j)的压油口油压,启动液压加载装置(1)和双向液压泵(2-a-j),检测此时制动闸(6)与制动盘(11)之间是否发生相对滑动,从而判断制动闸(6)在静态下能否有效制动主轴装置;第二,当进行动态制动测试时,制动闸(6)夹紧制动盘(11),关停电动机(7),模拟卷筒(10)在重载工况下的两侧钢丝绳张力差,调整液压加载装置(1)的出油口油压和双向液压泵(2-a-j)的压油口油压,启动液压加载装置(1)和双向液压泵(2-a-j),启动电动机(7),打开制动闸(6),电动机(7)控制卷筒(10)以角加速度a 1启动并达到速度v,关闭电动机(7),启动制动闸(6),检测此时制动闸的空行程时间、制动减速度能否在允许范围内,从而判断制动***在动态下能否有效制动主轴装置。
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