CN103954419A - Threaded fastener transverse vibration test device and method - Google Patents
Threaded fastener transverse vibration test device and method Download PDFInfo
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- CN103954419A CN103954419A CN201410177952.0A CN201410177952A CN103954419A CN 103954419 A CN103954419 A CN 103954419A CN 201410177952 A CN201410177952 A CN 201410177952A CN 103954419 A CN103954419 A CN 103954419A
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Abstract
The invention discloses a threaded fastener transverse vibration test device and method. The device comprises a transverse vibration platform, a transmission system, a clamp system, an installation base and a measuring device; one end of the transmission system is fixed to the vibration platform through a bolt, and the other end of the transmission system is fixed to a movable plate in the clamp system; a fixed base of the clamp system is fastened to the installation base through a T-shaped groove; the transmission system is provided with a pull pressure sensor, and the clamp system is provided with a gasket type force sensor. The device and method can simulate high-frequency vibration, achieve electrodeless amplitude modulation, monitor changes of transverse shear force and axial pre-tightening force of a threaded fastener in a vibration process in real time, and test the anti-loose characteristic of single bolts and bolt sets (distributed in a linear, rectangular and circular mode) with different specifications. The device and method provide a basis platform and data support for engineering technicians to analyze anti-loose performance of various threaded fasteners and assess effectiveness of various anti-loose methods.
Description
Technical field
The invention belongs to transverse vibration testing device field, be specifically related to a kind of threaded fastener transverse vibration testing device and test method.
Background technology
The advantages such as being threaded to have is easy to obtain compared with Dalian relay, is convenient to disassembly and maintenance maintenances, cheap, and interchangeability is strong, become in physical construction assembling application the most generally, connected mode the most widely, threaded fastener also becomes requisite mechanical component.The performance that great majority are threaded depends on size and the stability of its axial pre tightening force.But; when threaded connector is subject to extraneous load disturbance, particularly when transverse vibration load, threaded connector easily gets loose inefficacy; the power that is threaded reduces even and completely loses gradually, and this usually can cause very serious personal safety and property loss problem.Therefore, threaded fastener, before engineering application, must carry out anti-loosening property test and assessment to it.
At present, mainly contain three kinds for evaluating the test method of threaded fastener anti-loosening property: foot bolt test method(s), sleeve side knock method and transverse vibration test method(s).Foot bolt test method(s) can not obtain desirable test figure because of it, and comparability is poor, and there is no standardization, now substantially need not; Sleeve side knock method is because load mode and vibration, impact condition are closer to the real use state of various securing members, be formulated as China's GJB (GJB715.3A-2002), domestic air mail aerospace system mainly adopts the method, but the method can not be measured the variation of threaded fastener clamping force; Transverse vibration method principle originates from German Junker testing machine, the method can accurately be measured the variation of securing member pretightning force in vibration test process, provide pretightning force and the vibration number graph of relation of (or time), China has issued and has implemented national standard (GB-T10431-2008), the method is widely used at home, particularly in industries such as automobile, railway and pipeline connections.
Wherein, according to national standard (GB-T10431-2008), the transverse vibration test method(s) being most widely used carries out on securing member transverse vibration testing machine.Transverse vibration test realizes the adjustment of vibration frequency by changing eccentric rotating speed, realize the change of amplitude size by eccentric adjustment amount, and its vibration source is in fact a kind of slider-crank mechanism of machinery.This kind of structure causes transverse vibration testing machine structure complexity, and frequency of operation is lower, and amplitude and vibration acceleration are adjusted difficulty.In addition, its test fixture is only applicable to single screw retention compliance test result, cannot carry out the experimental test of bolt group, and test macro also cannot detect the variation of bolt test specimen cross shear in real time.Therefore, for the defect of prior art, be necessary to propose a kind of threaded fastener transverse vibration testing device, the convenient adjusting of its vibration frequency and amplitude controlled, and can realize the Real-Time Monitoring of the locking characteristic test of bolt group and cross shear.
Summary of the invention
The object of this invention is to provide a kind of threaded fastener transverse vibration testing device and test method, this test unit can be realized convenient adjusting of vibration frequency and amplitude and control, the test of the locking characteristic of bolt group, can Real-Time Monitoring bolt axial pre tightening force and the variation of cross shear.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of threaded fastener transverse vibration testing device, comprises transverse vibration platform, kinematic train and mounting base; Transverse vibration platform and mounting base are arranged adjacent each other on ground, and the bottom of mounting base is provided with the adjustment cushion block for adjusting height; The top of mounting base is provided with the chucking appliance system for tested bolt and tested nut are installed; One end of kinematic train is connected with transverse vibration platform, and the other end is connected with chucking appliance system; Transverse vibration platform passes to tested bolt and the tested nut on chucking appliance system by kinematic train by the vibration of vibration source, and in the time of transverse vibration Platform Vibration, kinematic train can drive chucking appliance system to do horizontal reciprocating movement.
Described chucking appliance system comprises the movable platen for laying tested bolt and tested nut; Movable platen is arranged on fixed pedestal, and fixed pedestal is fastened on the upper surface of mounting base.
On described movable platen, offer some for the bellmouth of tested bolt or tested nut is installed; Board-like roller chain is installed between movable platen and fixed pedestal, and connects by test bolt and nut; On fixed pedestal, offer the rectangular opening corresponding with bellmouth, the below of fixed pedestal is provided with power transmission sleeve; Power transmission sleeve lower end is the disc for packing ring is installed, and upper end is the rectangle head that through hole or threaded hole are offered in inside, and the rectangle head of its upper end is deep in the rectangular opening of fixed pedestal; On the disk of power transmission sleeve lower end, be provided with the two sensors packing ring stacking, be provided with washer type power sensor between two sensors packing ring, washer type power sensor sleeve is contained on power transmission sleeve; In the time of tested bolt or tested nut screwing clamping, the sensor packing ring on washer type power sensor top and the bottom close contact of fixed pedestal, the upper surface close contact of the sensor packing ring of washer type power sensor bottom and power transmission sleeve bottom disc.
In described bellmouth, be provided with circular cone, the internal diameter of circular cone is more than or equal to the external diameter of tested bolt, all offers pin hole on circular cone, and is fixedly connected with movable platen by pin; Bellmouth comprises bellmouth for testing tested bolt and for testing the bellmouth of tested nut;
In the time tested bolt being installed for the bellmouth of testing tested bolt, tested bolt is installed from top to bottom, on the nut of tested bolt, is arranged with compress gasket, and compress gasket is arranged with bolt and nut pad; On the rectangle head of power transmission sleeve upper end, offer the threaded hole matching with the screw thread on tested bolt;
In the time tested bolt being installed for the bellmouth of testing tested nut, tested bolt is installed from bottom to top, on the rectangle head of power transmission sleeve upper end, offers the through hole that internal diameter is more than or equal to screw diameter on tested bolt; Tested nut sleeve is contained on the screw rod that tested bolt passes movable platen, and is arranged with compress gasket on tested nut, and compress gasket is arranged with bolt and nut pad.
The center of described movable platen offers a bellmouth, and evenly offers 8 bellmouths around center circumferential direction; The upper surface of fixed pedestal offers the rectangular channel of some row for mounting plate type roller chain; Mounting base is fastening by being opened in T-shaped groove and the fixed pedestal of its upper surface; Mounting base is the T-shaped groove platform of cast iron.
Described transverse vibration platform involving vibrations platform base, is connected with horizontal vibration platform on shaking platform pedestal, and horizontal vibration platform is connected with shaking platform pedestal by ball chain; Horizontal vibration platform is fixedly connected with the output terminal of vibration source; One end of kinematic train is fixed on horizontal vibration platform.
Described vibration source adopts excitation coil structure, and vibration source output terminal and horizontal vibration platform, by bolted, offer the many groups threaded hole for connection for transmission system on horizontal vibration platform.
Described kinematic train comprises the retainer being fixed on horizontal vibration countertop and the T-shaped driving member being fixedly connected with movable platen; Retainer is installed with cylinder type driving member, cylinder type driving member is horizontally disposed with, between cylinder type driving member and T-shaped driving member, be provided with pull pressure sensor, the two ends of pull pressure sensor are all connected with T-shaped driving member with cylinder type driving member by sensor flange.
Also comprise charge amplifier, number extraction system and data processing module; The signal input part of charge amplifier is connected with the signal output part of washer type power sensor with pull pressure sensor respectively, the signal output part of charge amplifier is connected with the signal input part of several extraction systems, and the signal output part of number extraction system is connected with data processing module.
A kind of threaded fastener transverse vibration test method, comprises the following steps:
1) according to the demarcation of dispatching from the factory of pull pressure sensor and washer type power sensor, set range and the sensitivity of pull pressure sensor and washer type power sensor, the signal conversion ratio of setting data acquisition system;
2) vibration frequency, amplitude, vibration acceleration and the operation time parameters of vibration table are set, acceleration transducer is installed on movable platen;
3) choose the circular cone matching with tested bolt external diameter, circular cone is installed in the bellmouth of movable platen;
At the bellmouth for testing tested bolt, successively pin, bolt and nut pad, compress gasket and tested bolt are installed on circular cone;
At the bellmouth for testing tested nut, successively pin, bolt and nut pad, compress gasket, tested bolt and tested nut are installed on circular cone;
4) choose the power transmission sleeve matching with tested bolt external diameter, successively by sensor pad, washer type power installation of sensors on power transmission sleeve, then by its integral installation in the rectangular opening of fixed pedestal, tentatively tighten tested threaded fastener;
5) tighten tested bolt and tested nut to target torque value by dial torque wrench, record the reading of washer type power sensor by data acquisition system (DAS), after its indicating value is stable, record this value;
6) open vibration table, in the time that clamping force is lost to predetermined value, shut down, record kinematic train cross shear and tested bolt or tested nut axial pre tightening force curve over time;
7) repeating step 2)～6), change tested bolt or tested nut, circular cone and power transmission sleeve, the anti-loosening property of threaded fastener under dissimilar and structure, different screwing force, different frequency and various amplitude is tested and assessed.
Compared with prior art, the present invention has following beneficial effect:
Threaded fastener transverse vibration testing device of the present invention, chucking appliance system for tested bolt and tested nut are installed is installed on mounting base, and by kinematic train, transverse vibration platform is connected with chucking appliance system, the vibration of vibration source is passed to tested bolt and the tested nut on chucking appliance system, in the time of transverse vibration Platform Vibration, kinematic train can drive chucking appliance system to do horizontal reciprocating movement, has realized the Real-Time Monitoring of the locking characteristic test of bolt group and cross shear.The present invention is the anti-loosening property that engineering technical personnel analyze various threaded fasteners, and validity and the assembly connection process optimization of assessing various anti-loose methods provide basic platform.
Further, vibration source of the present invention adopts excitation coil structure, can realize dither, electrodeless amplitude modulation and large vibration acceleration.
Further, chucking appliance system of the present invention adopts center and circumferential 8 bellmouths design, can realize the locking characteristic test of single bolt and bolt group (linear distribution, rectangular distribution and circle distribution).
Further, the pull pressure sensor of installing in kinematic train of the present invention, the washer type power sensor being set with on threaded fastener, can realize the Real-Time Monitoring of cross shear and axial pre tightening force in vibration processes.
Threaded fastener transverse vibration test method of the present invention, by pull pressure sensor collection vibration cross shear, gather threaded fastener clamping force by washer type power sensor, record cross shear and clamping force curve over time by control system, analyze clamping force vibration number or decline value of clamping force while reaching certain vibration number while being lost to predetermined value, thereby evaluate the anti-loosing effect of various threaded fasteners.This test method is easy and simple to handle, and principle is simple, easily realizes, and under the cooperation of test unit, can provide basic Data support for the anti-loosening property that engineering technical personnel evaluate various threaded fasteners.
Brief description of the drawings
Fig. 1 is the integrally-built axis side view that waits of the present invention;
Fig. 2 is kinematic train sectional view of the present invention;
Fig. 3 is the cut-open view of chucking appliance system of the present invention;
Fig. 4 is the cut-open view of bolt test fixture of the present invention;
Fig. 5 is the cut-open view of nut test fixture of the present invention;
Fig. 6 is the axis side view that waits of movable platen of the present invention;
Fig. 7 is the axis side view that waits of power transmission sleeve of the present invention;
Fig. 8 is the axis side view that waits of fixed pedestal of the present invention.
Wherein, 1 is shaking platform pedestal; 2 is horizontal vibration platform; 3 is retainer; 4 is cylinder type driving member; 5 is sensor flange; 6 is pull pressure sensor; 7 is T-shaped driving member; 8 is movable platen; 9 is tested bolt; 10 is tested nut; 11 is compress gasket; 12 is bolt and nut pad; 13 is circular cone; 14 is board-like roller chain; 15 is pin; 16 is sensor pad; 17 is washer type power sensor; 18 is power transmission sleeve; 19 is fixed pedestal; 20 is mounting base; 21 for adjusting parallels.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1 to Fig. 8, threaded fastener transverse vibration testing device of the present invention, comprises transverse vibration platform, kinematic train, chucking appliance system, mounting base and measurement mechanism, transverse vibration platform involving vibrations platform base 1, horizontal vibration platform 2 and vibration source, vibration source adopts field coil, vibration source output terminal and horizontal vibration platform 2 pass through bolted, horizontal vibration platform 2 is connected with shaking platform pedestal 1 by ball chain, offers the many groups threaded hole for connection for transmission system on horizontal vibration platform, kinematic train comprises retainer 3, cylinder type driving member 4, sensor flange 5, pull pressure sensor 6 and T-shaped driving member 7, retainer 3 is bolted on 2 of horizontal vibration platforms, cylinder type driving member 4 one end by bolted on retainer 3, one end is fastened on left side sensor flange 5, and pull pressure sensor 6 is connected with cylinder type driving member 4 and T-shaped driving member 7 by sensor flange 5, chucking appliance system comprises movable platen 8, tested bolt 9, tested nut 10, compress gasket 11, bolt and nut pad 12, circular cone 13, board-like roller chain 14, pin 15, sensor pad 16, washer type power sensor 17, power transmission sleeve 18 and fixed pedestal 19, movable platen 8 centers are provided with bellmouth, Qie Rao center is circumferentially provided with 8 uniform bellmouths, circular cone is provided with pin hole, power transmission sleeve 18 one end are disc, one end is set to rectangle, power transmission sleeve 18 inside are provided with threaded hole, fixed pedestal 19 upper surfaces are provided with 7 row rectangular openings, for mounting plate type roller chain 14, lower surface is provided with 8 rectangular openings, for the rectangle head of power transmission sleeve 18 is installed, movable platen 8 is connected with the T-shaped driving member 7 of kinematic train by bolt, fixed pedestal 19 is fastening by T-shaped groove with mounting base 20, mounting plate type roller chain 14 between movable platen 8 and fixed pedestal 19, and connect by test bolt 9 or nut 10, washer type power sensor 17 is arranged on power transmission sleeve 18 as a connected piece part, measurement mechanism comprises pull pressure sensor 6, sensor flange 5, washer type power sensor 17, sensor pad 16, charge amplifier and number extraction system, pull pressure sensor 6 is arranged in kinematic train, be connected with cylinder type driving member 4 and T-shaped driving member 7 by sensor flange 5, washer type power sensor 17 is sleeved on the power transmission sleeve 18 of chucking appliance system, pull pressure sensor 6 and washer type power sensor 17 output signal access charge amplifiers, be connected with data processing module with data acquisition by charge amplifier.
The invention also discloses a kind of test method based on threaded fastener transverse vibration testing device described in claim 4, it is characterized in that, comprise the following steps:
1) according to the demarcation of dispatching from the factory of pull pressure sensor and washer type power sensor, set range and the sensitivity of pull pressure sensor and washer type power sensor, the signal conversion ratio of setting data acquisition system;
2) vibration frequency, amplitude, vibration acceleration and the operation time parameters of vibration table are set, on movable platen 8, acceleration transducer are installed;
3) choose the circular cone 13 matching with tested bolt 9 external diameters, circular cone 13 is installed in the bellmouth of movable platen 8;
At the bellmouth for testing tested bolt 9, successively pin 15, bolt and nut pad 12, compress gasket 11 and tested bolt 9 are installed on circular cone 13;
At the bellmouth for testing tested nut 10, successively pin 15, bolt and nut pad 12, compress gasket 11, tested bolt 9 and tested nut 10 are installed on circular cone 13;
4) choose the power transmission sleeve 18 matching with tested bolt 9 external diameters, successively sensor pad 16, washer type power sensor 17 are arranged on power transmission sleeve 18, again by its integral installation in the rectangular opening of fixed pedestal 19, tentatively tighten tested threaded fastener 9;
5) tighten tested bolt 9 and tested nut 10 to target torque value by dial torque wrench, record the reading of washer type power sensor 17 by data acquisition system (DAS), after its indicating value is stable, record this value;
6) open vibration table, in the time that clamping force is lost to predetermined value or reaches certain vibration number, shut down, record kinematic train cross shear and tested bolt 9 or tested nut 10 axial pre tightening forces curve over time;
7) repeating step 2)～6), change tested bolt 9 or tested nut 10, circular cone 13 and power transmission sleeve 18, the anti-loosening property of threaded fastener under dissimilar and structure, different screwing force, different frequency and various amplitude is tested and assessed.
Principle of the present invention and the course of work:
As shown in Figure 1, threaded fastener transverse vibration testing device of the present invention, comprising: transverse vibration platform, kinematic train, chucking appliance system, mounting base and measurement mechanism.Kinematic train one end is bolted on transverse vibration platform 3, and the other end is fixed on the movable platen 8 in chucking appliance system; The fixed pedestal 19 of chucking appliance system is fastening by T-shaped groove with mounting base 20; Kinematic train is provided with pull pressure sensor 6, and chucking appliance system is provided with washer type power sensor 17; In the time of transverse vibration Platform Vibration, kinematic train drives the movable platen in chucking appliance system to do horizontal reciprocating movement.
As shown in Figure 2, kinematic train comprises retainer 3, cylinder type driving member 4, sensor flange 5, pull pressure sensor 6 and T-shaped driving member 7, retainer 3 is bolted on 2 of horizontal vibration platforms, cylinder type driving member 4 one end by bolted on retainer 3, one end is fastened on left side sensor flange 5, and pull pressure sensor 6 is connected with cylinder type driving member 4 and T-shaped driving member 7 by sensor flange 5.
As shown in Figure 3, chucking appliance system comprises movable platen 8, tested bolt 9, tested nut 10, compress gasket 11, bolt and nut pad 12, circular cone 13, board-like roller chain 14, pin 15, sensor pad 16, washer type power sensor 17, power transmission sleeve 18 and fixed pedestal 19, movable platen 8 is connected with the T-shaped driving member 7 of kinematic train by bolt, fixed pedestal 19 is fastening by T-shaped groove with mounting base 20, mounting plate type roller chain 14 between movable platen 8 and fixed pedestal 19, and connect by test bolt 9 or nut 10, washer type power sensor 17 is arranged on power transmission sleeve 18 as a connected piece part.
As shown in Figure 4, in chucking appliance system, bolt test fixture comprises: movable platen 8, tested bolt 9, compress gasket 11, bolt and nut pad 12, circular cone 13, board-like roller chain 14, pin 15, sensor pad 16, washer type power sensor 17, power transmission sleeve 18 and fixed pedestal 19, now power transmission sleeve 18 rectangle head inside are threaded hole, tested bolt 9 is installed from top to bottom, is fastened in power transmission sleeve 18.
As shown in Figure 5, in chucking appliance system, nut test fixture comprises: movable platen 8, bolt 9, tested nut 10, compress gasket 11, bolt and nut pad 12, circular cone 13, board-like roller chain 14, pin 15, sensor pad 16, washer type power sensor 17, power transmission sleeve 18 and fixed pedestal 19, now power transmission sleeve 18 rectangle head inside are unthreaded hole, bolt 9 is installed from bottom to top, by tightening tested nut 10 imposed loads.
As shown in Figure 6, movable platen 8 centers are provided with 1 bellmouth, are provided with 8 uniform bellmouths around center circumferential direction, and each bellmouth side is provided with pin hole, is circumferentially provided with four threaded holes.
As shown in Figure 7, power transmission sleeve 18 one end are disc, and centre is cylindrical, and one end is set to rectangle, and disc is provided with washer type power sensor 17, and rectangle head coordinates with fixed pedestal 19 square holes, stop power transmission sleeve 18 to rotate; It is unthreaded hole that power transmission sleeve 18 inside arrange bottom, and top is threaded hole, and threaded hole is used for tightening tested bolt.
As shown in Figure 8, fixed pedestal 19 upper surfaces are provided with 7 row rectangular openings, and for mounting plate type roller chain 14, lower surface is provided with 8 rectangular openings, and for the rectangle head of power transmission sleeve 18 is installed, fixed pedestal 19 is fastening by T-shaped groove with mounting base 20.
Measurement mechanism comprises pull pressure sensor 6, sensor flange 5, washer type power sensor 17, sensor pad 16, charge amplifier and number extraction system, pull pressure sensor 6 is arranged in kinematic train, be connected with cylinder type driving member 4 and T-shaped driving member 7 by sensor flange 5, washer type power sensor 17 is sleeved on the power transmission sleeve 18 of chucking appliance system, pull pressure sensor 6 and washer type power sensor 17 output signal access charge amplifiers, be connected with data processing module with data acquisition by charge amplifier.
While adopting the present invention to carry out the test of bolt transverse vibration, specific implementation process comprises the following steps:
According to the demarcation of dispatching from the factory of power sensor, set power transducer range and sensitivity, the signal conversion ratio of setting data acquisition system;
Vibration table basic parameter is set, as vibration frequency, amplitude, vibration acceleration and working time, on the movable platen 8 of chucking appliance system, acceleration transducer is installed;
Choose the circular cone 13 matching with tested bolt internal diameter, circular cone 13 is installed in the bellmouth of movable platen 8, then pin, bolt and nut pad 12, compress gasket 11 and tested bolt 9 are installed successively on circular cone 13;
Choose the power transmission sleeve 18 matching with tested bolt 9 internal diameters, successively sensor pad 16, washer type power sensor 17 be arranged on power transmission sleeve 18, then by its integral installation in fixed pedestal 19 rectangular openings, tentatively tighten tested bolt 9;
Tighten tested bolt 9 to target torque value by dial torque wrench, record the reading of washer type power sensor 17 by data acquisition system (DAS), after its indicating value is stable, record this value F;
Open vibration table, in the time that clamping force is lost to predetermined value or reaches certain vibration number, shut down, record kinematic train cross shear and tested bolt axial pre tightening force curve over time.
Repeat above-mentioned steps, the anti-loosening property of tested bolt 9 under different screwing forces, different structure, different frequency and amplitude is tested and assessed.
After a kind of tested bolt of model is finished, repeat above-mentioned steps, change tested bolt 9, circular cone 13 and power transmission sleeve 18, so, can carry out the anti-loosening property test of different size type bolt.
Above content is in conjunction with concrete preferred implementation further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention by the definite protection domain of submitted to claims.
Claims (10)
1. a threaded fastener transverse vibration testing device, is characterized in that: comprise transverse vibration platform, kinematic train and mounting base (20); Transverse vibration platform and mounting base (20) are arranged adjacent each other on ground, and the bottom of mounting base (20) is provided with the adjustment cushion block (21) for adjusting height; The top of mounting base (20) is provided with the chucking appliance system for tested bolt (9) and tested nut (10) are installed; One end of kinematic train is connected with transverse vibration platform, and the other end is connected with chucking appliance system; Transverse vibration platform passes to tested bolt (9) and the tested nut (10) on chucking appliance system by kinematic train by the vibration of vibration source, and in the time of transverse vibration Platform Vibration, kinematic train can drive chucking appliance system to do horizontal reciprocating movement.
2. threaded fastener transverse vibration testing device according to claim 1, is characterized in that: described chucking appliance system comprises the movable platen (8) for laying tested bolt (9) and tested nut (10); It is upper that movable platen (8) is arranged on fixed pedestal (19), and fixed pedestal (19) is fastened on the upper surface of mounting base (20).
3. threaded fastener transverse vibration testing device according to claim 2, is characterized in that: on described movable platen (8), offer some for the bellmouth of tested bolt (9) or tested nut (10) is installed; Between movable platen (8) and fixed pedestal (19), board-like roller chain (14) is installed, and connects by test bolt (9) nut (10); Fixed pedestal offers the rectangular opening corresponding with bellmouth on (19), and the below of fixed pedestal (19) is provided with power transmission sleeve (18); Power transmission sleeve (18) lower end is the disc for packing ring is installed, and upper end is the rectangle head that through hole or threaded hole are offered in inside, and the rectangle head of its upper end is deep in the rectangular opening of fixed pedestal (19); On the disk of power transmission sleeve (18) lower end, be provided with the two sensors packing ring (16) stacking, between two sensors packing ring (16), be provided with washer type power sensor (17), washer type power sensor (17) is sleeved on power transmission sleeve (18); In the time that tested bolt (9) or tested nut (10) are tightened, the sensor packing ring (16) on washer type power sensor (17) top and the bottom close contact of fixed pedestal (19), the upper surface close contact of the sensor packing ring (16) of washer type power sensor (17) bottom and power transmission sleeve (18) bottom disc.
4. threaded fastener transverse vibration testing device according to claim 3, it is characterized in that: in described bellmouth, be provided with circular cone (13), the internal diameter of circular cone (13) is more than or equal to the external diameter of tested bolt (9), circular cone all offers pin hole on (13), and is fixedly connected with movable platen (8) by pin (15); Bellmouth comprises bellmouth for testing tested bolt (9) and for testing the bellmouth of tested nut (10);
In the time tested bolt (9) being installed for the bellmouth of testing tested bolt (9), tested bolt (9) is installed from top to bottom, on the nut of tested bolt (9), be arranged with compress gasket (11), compress gasket (11) is arranged with bolt and nut pad (12); On the rectangle head of power transmission sleeve (18) upper end, offer the threaded hole matching with the screw thread on tested bolt (9);
In the time tested bolt (9) being installed for the bellmouth of testing tested nut (10), tested bolt (9) is installed from bottom to top, offers the through hole that internal diameter is more than or equal to the upper screw diameter of tested bolt (9) on the rectangle head of power transmission sleeve (18) upper end; Tested nut (10) is sleeved on tested bolt (9) and passes on the screw rod of movable platen (8), and on tested nut (10), be arranged with compress gasket (11), compress gasket (11) is arranged with bolt and nut pad (12).
5. according to the threaded fastener transverse vibration testing device described in claim 2,3 or 4, it is characterized in that: the center of described movable platen (8) offers a bellmouth, and evenly offers 8 bellmouths around center circumferential direction; The upper surface of fixed pedestal (19) offers the rectangular channel of some row for mounting plate type roller chain (14); Mounting base (20) is fastening by being opened in T-shaped groove and the fixed pedestal (19) of its upper surface; Mounting base (20) is the T-shaped groove platform of cast iron.
6. according to the threaded fastener transverse vibration testing device described in claim 3 or 4, it is characterized in that: described transverse vibration platform involving vibrations platform base (1), on shaking platform pedestal (1), be connected with horizontal vibration platform (2), horizontal vibration platform (2) is connected with shaking platform pedestal (1) by ball chain; Horizontal vibration platform (2) is fixedly connected with the output terminal of vibration source; One end of kinematic train is fixed on horizontal vibration platform (2).
7. threaded fastener transverse vibration testing device according to claim 6, it is characterized in that: described vibration source adopts excitation coil structure, vibration source output terminal and horizontal vibration platform (2), by bolted, offer the many groups threaded hole for connection for transmission system on horizontal vibration platform.
8. threaded fastener transverse vibration testing device according to claim 6, is characterized in that: described kinematic train comprises the retainer (3) being fixed on horizontal vibration platform (2) end face and the T-shaped driving member (7) being fixedly connected with movable platen (8); Retainer (3) is installed with cylinder type driving member (4), cylinder type driving member (4) is horizontally disposed with, between cylinder type driving member (4) and T-shaped driving member (7), be provided with pull pressure sensor (6), the two ends of pull pressure sensor (6) are all connected with T-shaped driving member (7) with cylinder type driving member (4) by sensor flange (5).
9. threaded fastener transverse vibration testing device according to claim 8, is characterized in that: also comprise charge amplifier, number extraction system and data processing module; The signal input part of charge amplifier is connected with the signal output part of washer type power sensor (17) with pull pressure sensor (6) respectively, the signal output part of charge amplifier is connected with the signal input part of several extraction systems, and the signal output part of number extraction system is connected with data processing module.
10. the test method based on threaded fastener transverse vibration testing device described in claim 4, is characterized in that, comprises the following steps:
1) according to the demarcation of dispatching from the factory of pull pressure sensor and washer type power sensor, set range and the sensitivity of pull pressure sensor and washer type power sensor, the signal conversion ratio of setting data acquisition system;
2) vibration frequency, amplitude, vibration acceleration and the operation time parameters of vibration table are set, at the upper acceleration transducer of installing of movable platen (8);
3) choose the circular cone (13) matching with tested bolt (9) external diameter, circular cone (13) is installed in the bellmouth of movable platen (8);
At the bellmouth for testing tested bolt (9), successively pin (15), bolt and nut pad (12), compress gasket (11) and tested bolt (9) are installed on circular cone (13);
At the bellmouth for testing tested nut (10), successively pin (15), bolt and nut pad (12), compress gasket (11), tested bolt (9) and tested nut (10) are installed on circular cone (13);
4) choose the power transmission sleeve (18) matching with tested bolt (9) external diameter, successively sensor pad (16), washer type power sensor (17) are arranged on power transmission sleeve (18), again by its integral installation in the rectangular opening of fixed pedestal (19), tentatively tighten tested threaded fastener (9);
5) tighten tested bolt (9) and tested nut (10) to target torque value by dial torque wrench, record the reading of washer type power sensor (17) by data acquisition system (DAS), after its indicating value is stable, record this value;
6) open vibration table, in the time that clamping force is lost to predetermined value, shut down, record kinematic train cross shear and tested bolt (9) or tested nut (10) axial pre tightening force curve over time;
7) repeating step 2)～6), change tested bolt (9) or tested nut (10), circular cone (13) and power transmission sleeve (18), the anti-loosening property of threaded fastener under dissimilar and structure, different screwing force, different frequency and various amplitude is tested and assessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177952.0A CN103954419B (en) | 2014-04-29 | 2014-04-29 | A kind of threaded fastener transverse vibration testing device and test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177952.0A CN103954419B (en) | 2014-04-29 | 2014-04-29 | A kind of threaded fastener transverse vibration testing device and test method |
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| Publication Number | Publication Date |
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| CN103954419A true CN103954419A (en) | 2014-07-30 |
| CN103954419B CN103954419B (en) | 2016-06-29 |
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| CN201410177952.0A Active CN103954419B (en) | 2014-04-29 | 2014-04-29 | A kind of threaded fastener transverse vibration testing device and test method |
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| CN107328538A (en) * | 2017-06-15 | 2017-11-07 | 上海工程技术大学 | A kind of pretension fixing device for vibration-testing |
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| CN109668705A (en) * | 2019-02-19 | 2019-04-23 | 北京工业大学 | Heavy caliber V-type clip plate vibration experimental provision and method |
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| CN110196146A (en) * | 2019-07-08 | 2019-09-03 | 陕西省电光源工业产品质量监督检验站 | Motor vehicle bulb vibration detection fixture and its detection method |
| CN110207916A (en) * | 2019-06-24 | 2019-09-06 | 杭州中车车辆有限公司 | A kind of subway centrepin bolt vibration accelerated test method and device |
| CN110243505A (en) * | 2019-07-10 | 2019-09-17 | 法施达科技有限公司 | A kind of pressure sensor washer |
| CN112129477A (en) * | 2020-08-28 | 2020-12-25 | 河南航天精工制造有限公司 | Screw member vibration test tool |
| CN112284708A (en) * | 2020-10-23 | 2021-01-29 | 江苏徐工工程机械研究院有限公司 | Vibration-torsion composite bolt connection performance test auxiliary device and use method |
| CN112432752A (en) * | 2020-12-09 | 2021-03-02 | 河北工程大学 | Vibration detection device for threaded fastener |
| CN113108975A (en) * | 2021-04-06 | 2021-07-13 | 北京工业大学 | Bolt connection looseness test device under tangential load effect |
| CN113182946A (en) * | 2021-04-13 | 2021-07-30 | 南京航空航天大学 | One-way ultrasonic vibration platform with adjustable clamp and operation method thereof |
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| CN105699037A (en) * | 2014-11-24 | 2016-06-22 | 上海汽车集团股份有限公司 | Transmission press filter cover vibration test apparatus and method |
| CN104405751A (en) * | 2014-11-26 | 2015-03-11 | 河南航天精工制造有限公司 | External-threaded self-locking nut vibration test tool |
| CN104390753A (en) * | 2014-11-26 | 2015-03-04 | 河南航天精工制造有限公司 | Vibration test device of self-locking nut for bearing fastening |
| CN104405751B (en) * | 2014-11-26 | 2017-01-18 | 河南航天精工制造有限公司 | External-threaded self-locking nut vibration test tool |
| CN104655379A (en) * | 2015-03-13 | 2015-05-27 | 武汉理工大学 | Device for testing anti-loosening property of threaded fastener |
| CN104655379B (en) * | 2015-03-13 | 2017-09-29 | 武汉理工大学 | A kind of device for being used to test threaded fastener anti-loosening property |
| CN105181312A (en) * | 2015-08-19 | 2015-12-23 | 中国北方发动机研究所(天津) | Apparatus and method for testing inherent frequency of vibration for stitching bolt of engine body |
| CN105181312B (en) * | 2015-08-19 | 2017-10-20 | 中国北方发动机研究所(天津) | Engine body sutures bolt vibration natural frequency measurement apparatus and method of testing |
| CN107024943A (en) * | 2016-02-02 | 2017-08-08 | 中国气动工业股份有限公司 | The torsion control method and its torsion control system of Pneumatic impact dynamic torque tool |
| CN105784304B (en) * | 2016-05-05 | 2018-04-10 | 大连理工大学 | A kind of multifunctional fastener testing experiment machine |
| CN105784304A (en) * | 2016-05-05 | 2016-07-20 | 大连理工大学 | Multifunctional fastener testing machine |
| CN105806579A (en) * | 2016-05-13 | 2016-07-27 | 安庆市津海工业产品设计有限公司 | Stone shaper erection bolt main machine fastening tester |
| CN106500938A (en) * | 2016-09-13 | 2017-03-15 | 中国电力科学研究院 | Electric power pylon screw retention experimental rig and method |
| CN107036777A (en) * | 2017-04-18 | 2017-08-11 | 浙江华电器材检测研究所 | Fastener high/low temperature oscillation crosswise testing machine |
| CN107328538A (en) * | 2017-06-15 | 2017-11-07 | 上海工程技术大学 | A kind of pretension fixing device for vibration-testing |
| CN107328538B (en) * | 2017-06-15 | 2019-10-15 | 上海工程技术大学 | A kind of fixed device of preload for vibration-testing |
| CN107505124A (en) * | 2017-08-02 | 2017-12-22 | 大连理工大学 | A kind of accurate control transverse load releases testing machine |
| CN109000873A (en) * | 2018-06-07 | 2018-12-14 | 西南交通大学 | A kind of bolt looseness life-span prediction method |
| CN108956077A (en) * | 2018-07-23 | 2018-12-07 | 上汽通用五菱汽车股份有限公司 | Multi-functional screw connection structure pilot system and performance optimization method |
| CN109029962A (en) * | 2018-08-30 | 2018-12-18 | 周子翘 | Determine the pilot system of fastening arrangement and method for construction |
| CN108982042A (en) * | 2018-09-21 | 2018-12-11 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of rivet resistance to shock test structure |
| CN109374248A (en) * | 2018-11-29 | 2019-02-22 | 北京强度环境研究所 | A kind of bolt looseness experimental rig |
| CN109668705A (en) * | 2019-02-19 | 2019-04-23 | 北京工业大学 | Heavy caliber V-type clip plate vibration experimental provision and method |
| CN109781398A (en) * | 2019-02-20 | 2019-05-21 | 陕西科技大学 | A kind of screw connection anti-loose test measurement device and method |
| CN109781398B (en) * | 2019-02-20 | 2024-04-26 | 陕西科技大学 | Screw connection anti-loosening test measurement device and method |
| CN110207916A (en) * | 2019-06-24 | 2019-09-06 | 杭州中车车辆有限公司 | A kind of subway centrepin bolt vibration accelerated test method and device |
| CN110196146A (en) * | 2019-07-08 | 2019-09-03 | 陕西省电光源工业产品质量监督检验站 | Motor vehicle bulb vibration detection fixture and its detection method |
| CN110243505A (en) * | 2019-07-10 | 2019-09-17 | 法施达科技有限公司 | A kind of pressure sensor washer |
| CN113295391A (en) * | 2020-02-24 | 2021-08-24 | 中车时代电动汽车股份有限公司 | Bolt fastening test tool and method |
| CN112129477A (en) * | 2020-08-28 | 2020-12-25 | 河南航天精工制造有限公司 | Screw member vibration test tool |
| CN112284708A (en) * | 2020-10-23 | 2021-01-29 | 江苏徐工工程机械研究院有限公司 | Vibration-torsion composite bolt connection performance test auxiliary device and use method |
| CN112432752A (en) * | 2020-12-09 | 2021-03-02 | 河北工程大学 | Vibration detection device for threaded fastener |
| CN112432752B (en) * | 2020-12-09 | 2022-03-01 | 河北工程大学 | Vibration detection device for threaded fastener |
| CN113108975A (en) * | 2021-04-06 | 2021-07-13 | 北京工业大学 | Bolt connection looseness test device under tangential load effect |
| CN113182946A (en) * | 2021-04-13 | 2021-07-30 | 南京航空航天大学 | One-way ultrasonic vibration platform with adjustable clamp and operation method thereof |
| CN113237620A (en) * | 2021-04-20 | 2021-08-10 | 镇江合丰紧固件制造有限公司 | Anti-loosening performance detection device and detection method for fastener |
| CN113237620B (en) * | 2021-04-20 | 2023-05-23 | 镇江合丰紧固件制造有限公司 | Locking performance detection device and method for fastener |
| CN113639975A (en) * | 2021-06-24 | 2021-11-12 | 江苏徐工工程机械研究院有限公司 | Bolt pretightening force attenuation testing device and testing method in vibration process |
| CN113639975B (en) * | 2021-06-24 | 2024-05-31 | 江苏徐工工程机械研究院有限公司 | Bolt pretightening force attenuation testing device and method in vibration process |
| CN113686498A (en) * | 2021-08-06 | 2021-11-23 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Vibration sealing test device for sealing strip of wing oil tank opening cover |
| CN113916477A (en) * | 2021-09-30 | 2022-01-11 | 东风商用车有限公司 | Anti-loosening performance test evaluation method for bolt connection pair |
| CN113916477B (en) * | 2021-09-30 | 2023-09-29 | 东风商用车有限公司 | Anti-loosening performance test and evaluation method for bolt connection pair |
| CN114112266A (en) * | 2021-11-22 | 2022-03-01 | 广州广电计量检测股份有限公司 | Method and device for measuring anti-loosening performance of fastener assembly |
| CN114112266B (en) * | 2021-11-22 | 2023-11-24 | 广电计量检测集团股份有限公司 | Method and device for measuring anti-loosening performance of fastener assembly |
| CN114323520A (en) * | 2021-12-28 | 2022-04-12 | 京信通信技术(广州)有限公司 | Fastener testing arrangement |
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