CN108931348B - Efficient bridge structures fatigue test device - Google Patents
Efficient bridge structures fatigue test device Download PDFInfo
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- CN108931348B CN108931348B CN201811145912.2A CN201811145912A CN108931348B CN 108931348 B CN108931348 B CN 108931348B CN 201811145912 A CN201811145912 A CN 201811145912A CN 108931348 B CN108931348 B CN 108931348B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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Abstract
The invention discloses a high-efficiency bridge structure fatigue test device, which belongs to the technical field of bridge structures and has the technical scheme that the device comprises a test bed, wherein the upper end surface of the test bed is movably connected with a placing rack, one side of the placing rack is provided with a supporting plate, the upper end surface of the supporting plate is fixedly connected with a nondestructive test device, the nondestructive test device comprises a probe and a flaw detector, one end of the probe is connected with the flaw detector through a lead, the outer side wall of the flaw detector is electrically connected with a signal output port, one side wall of the placing rack is embedded with a sensing device, the sensing device comprises a sensor and a second storage battery, the nondestructive test device can carry out data detection on a test object in a test process, the signal output port outputs detected data, the sensing device can collect the data, and the efficiency of test and test is improved by arranging the nondestructive test device and, meanwhile, the accuracy of test data is improved.
Description
Technical Field
The invention relates to the technical field of bridge structures, in particular to a high-efficiency bridge structure fatigue test device.
Background
With the continuous progress of modern traffic, the investment and construction of bridges are increasing year by year, the construction of bridges plays an important role in traffic operation systems, perennial vehicles pass by to enable bridge structures to easily generate fatigue damage and even cause structural failure, and for better bridge construction, the bridge structures need to be subjected to stability simulation test in a laboratory fatigue test mode.
The conventional bridge structure testing system is a hydraulic fatigue testing system, a pulsating hydraulic source generally provides power for hydraulic equipment, the hydraulic equipment performs hydraulic testing on a bridge structure, and data comparison is performed through testing.
Disclosure of Invention
The invention provides a high-efficiency bridge structure fatigue test device, and aims to solve the problems of low test efficiency and inaccurate test data of the conventional bridge structure fatigue test equipment.
The invention is realized in such a way, the high-efficiency bridge structure fatigue test device comprises a test bed, wherein the upper end surface of the test bed is movably connected with a placing frame, one side of the placing frame is provided with a supporting plate, the bottom of the supporting plate is fixedly connected with the upper end surface of the test bed, the upper end surface of the supporting plate is fixedly connected with a nondestructive detection device, the nondestructive detection device comprises a probe and a flaw detector, one end of the probe is connected with the flaw detector through a lead, the outer side wall of the flaw detector is electrically connected with a signal output port, the bottom of the flaw detector is connected with a first storage battery through a lead, the bottom of the first storage battery is fixedly connected with the supporting plate, a sensing device is embedded in one side wall of the placing frame and comprises a sensor and a second storage battery, the sensor is connected with, the bottom fixedly connected with vibration strip of rack, vibrating motor is installed to the right side of rack, vibrating motor's lower extreme fixedly connected with connecting plate, the bottom of connecting plate and the up end fixed connection of vibration strip.
Preferably, a clamping groove is formed in the outer side wall of the placing frame, the sensor is clamped in the clamping groove, a protective guard is arranged on one side of the sensor, and the protective guard is fixedly connected with the sensor.
Preferably, the lower end of the vibration strip is connected with a sliding chute in a sliding mode, the bottom of the sliding chute is fixedly connected with the test bed, two ends of the sliding chute are fixedly connected with check blocks, and the bottom end of each check block is fixedly connected with the upper end face of the test bed.
Preferably, a baffle is arranged on the left side of the placing frame, and the bottom of the baffle is fixedly connected with the upper end face of the test bed.
Preferably, the bottom welding of rack has the connecting block, the rack passes through connecting block fixed connection with the vibration strip.
Preferably, the vibrating strips are arranged in two groups, and the two groups of vibrating strips are symmetrically distributed on the upper end face of the test bed.
Preferably, the placing racks are provided with two groups, and the placing racks are in a concave shape.
Preferably, the four corners of the test bed base are fixedly connected with non-slip mats.
Compared with the prior art, the invention has the beneficial effects that:
1. this kind of efficient bridge structures fatigue test device, backup pad up end fixedly connected with nondestructive test device, nondestructive test device includes probe and flaw detector, the one end and the flaw detector of probe pass through the wire and are connected, the lateral wall electric connection of flaw detector has signal output port, in the testing process, the last probe of nondestructive test device can be surveyed the laboratory object of placing on the rack, the not hard up condition of probe detection bridge structures, the effective output of data that will survey is carried out to signal output port on the flaw detector lateral wall simultaneously, it carries out more accurate data acquisition to the laboratory object to have facilitated the staff through setting up nondestructive test device, test efficiency has been improved.
2. This kind of efficient bridge structures fatigue test device, a lateral wall embedding of rack is provided with sensing device, sensing device includes sensor and second battery, carrying out bridge structures fatigue test device's in-process, the subject is shelved and is carried out analogue test several times on the rack, sensing device is gathering bridge structures antidetonation fatigue test data carrying out the testing process, the sensor is through the incessant data acquisition of several times, make the staff can carry out abundant data record contrast, a large amount of record data have improved the accuracy of test simultaneously.
3. This kind of efficient bridge structures fatigue test device, the bottom fixedly connected with vibration strip of rack, the lower extreme sliding connection of vibration strip has the spout, the bottom and the test bench fixed connection of spout, placed on the rack by experimental bridge structures, the vibration strip under the rack passes through vibrating motor's drive, the vibration strip makes a round trip to slide inside the spout and realizes the simulation test, through the cooperation of vibration strip and spout, the problem that current large-scale test equipment efficiency of software testing is low has been solved, bridge structures fatigue test's test efficiency has been improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the vibrating bar of the present invention;
FIG. 3 is a schematic structural diagram of the nondestructive testing apparatus of the present invention;
fig. 4 is a schematic structural diagram of the sensing device of the present invention.
In the figure, 1, test stand; 11. a non-slip mat; 2. a vibration motor; 21. a connecting plate; 3. a baffle plate; 4. a support plate; 5. a nondestructive testing device; 51. a probe; 52. a flaw detector; 53. a signal output port; 54. a first storage battery; 6. placing a rack; 61. a card slot; 62. protecting the fence; 63. connecting blocks; 7. a sensing device; 71. a sensor; 72. a second storage battery; 8. a vibrating bar; 9. a chute; 91. and a stop block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The types of the instrument in the invention are as follows:
the vibration motor 2 is of the type: YJDX-2.5-2;
the flaw detector 52 is of the type: WX-2003;
the sensor 71 is of the type: PT 124B-2521.
Referring to fig. 1-4, the present invention provides a technical solution: a high-efficiency bridge structure fatigue test device comprises a test bed 1, wherein the upper end face of the test bed 1 is movably connected with a placing frame 6, one side of the placing frame 6 is provided with a supporting plate 4, the bottom of the supporting plate 4 is fixedly connected with the upper end face of the test bed 1, the upper end face of the supporting plate 4 is fixedly connected with a nondestructive test device 5, the nondestructive test device 5 comprises a probe 51 and a flaw detector 52, one end of the probe 51 is connected with the flaw detector 52 through a lead, the outer side wall of the flaw detector 52 is electrically connected with a signal output port 53, the bottom of the flaw detector 52 is connected with a first storage battery 54 through a lead, the bottom of the first storage battery 54 is fixedly connected with the supporting plate 4, in the test process, the probe 51 can effectively detect a test object, the flaw detector 52 outputs detected data through the signal output port 53, and workers can collect and compare, thereby improving the accuracy of the test, a sensing device 7 is embedded in one side wall of the placing frame 6, the sensing device 7 comprises a sensor 71 and a second storage battery 72, the sensor 71 is connected with the second storage battery 72 through a lead, the sensor 71 in the sensing device 7 can collect test data in the test process, through a large amount of collected test data, a worker can compare the test data, the bottom of the placing frame 6 is fixedly connected with the vibration strip 8, the right side of the placing frame 6 is provided with the vibration motor 2, the lower end of the vibration motor 2 is fixedly connected with the connecting plate 21, the bottom of the connecting plate 21 is fixedly connected with the upper end face of the vibration strip 8, under vibrating motor 2's drive, fix connecting plate 21 at vibrating motor 2 lower extreme and drive vibration strip 8 and go on making a round trip to slide in spout 9, the effectual tired process of simulating bridge structures has guaranteed the accuracy of test data.
Preferably, the outer side wall of the placing frame 6 is provided with a clamping groove 61, the sensor 71 is clamped in the clamping groove 61, one side of the sensor 71 is provided with a protective guard 62, the protective guard 62 is fixedly connected with the clamping groove 61, the placing frame 6 moves under the driving of the vibrating motor 2, in order to ensure the stability and accuracy of test data, the clamping groove 61 can effectively stabilize the sensor 71, so that the sensor 71 cannot fall off in the test process, the protective guard 62 further stabilizes the stability of the sensor 71, the sensor 71 is stabilized by arranging the clamping groove 61 and the protective guard 62, so that the test accuracy is improved, the lower end of the vibrating strip 8 is slidably connected with a sliding groove 9, the bottom of the sliding groove 9 is fixedly connected with the test bed 1, two ends of the sliding groove 9 are fixedly connected with a stop block 91, the bottom end of the stop block 91 is fixedly connected with the upper end face of the test bed 1, when the vibration strip 8 moves back and forth in the chute 9, in order to prevent the vibration strip 8 from sliding out of the chute 9, a stop block 91 is needed to stop the vibration strip, the slide block 91 ensures that the vibration strip 8 normally slides in the chute 9, the baffle 3 is arranged on the left side of the placing frame 6, the bottom of the baffle 3 is fixedly connected with the upper end face of the test table 1, an experimental object on the placing frame 6 is subjected to vibration of the vibration strip 8 in the test process, so that dislocation can occur on the placing frame 6, the baffle 3 arranged on the left side of the placing frame 6 can ensure that the experimental object cannot fall off the placing frame 6, the integrity of the test is ensured, the connecting block 63 is welded at the bottom of the placing frame 6, the placing frame 6 is fixedly connected with the vibration strip 8 through the connecting block 63, when the test is performed, the connecting block 63 can realize tight connection between the vibration strip 8 and the placing frame 6, the placing frame 6 can synchronously move along, the accuracy of the test is improved, two groups of vibration strips 8 are arranged, the two groups of vibration strips 8 are symmetrically distributed on the upper end face of the test bed 1, the vibration strips 8 slide back and forth in the sliding groove 9 under the driving of the vibration motor 2, the two groups of vibration strips 8 which are symmetrically distributed can more accurately simulate the current situation of the bridge structure passing in real traffic, the accuracy of the test data is improved, the two groups of placing frames 6 are arranged, the placing frames 6 are in a concave shape, whether the test object is stable or not directly influences the test data when the test is carried out, so that the test result is inaccurate, therefore, the test object needs to be stably placed, the test object can be stably placed by the two groups of placing frames 6, the concave-shaped placing frames 6 enable the test object to be more stable in the test process, so that the accuracy of the test data of the test is improved, and the four corners of the base of the test bed 1 are fixedly, the test bed 1 can produce violent rocking usually in the process of carrying out the test, in order to guarantee the integrality of test process and the accuracy of test result, through set up slipmat 11 in the base four corners of test bed 1, stabilized test bed 1, alleviateed rocking of test bed 1, guaranteed the smooth operation of experiment.
The working principle and the using process of the invention are as follows: firstly, a test object is placed on a concave-shaped placing frame 6, the vibration motor 2 is started after the test object is determined to be placed stably, under the driving of the vibration motor 2, the vibration strip 8 fixedly connected with the lower end of the connecting plate 21 starts to slide back and forth in the sliding groove 9, the stop blocks 91 arranged at the two ends of the sliding groove 9 can effectively stop the vibration strip 8 from sliding back and forth in the sliding groove 9 and not sliding out of the sliding groove 9, meanwhile, the sensor 71 arranged in the clamping groove 61 monitors and collects data of the test object in the test process, a worker carries out test comparison according to a large amount of test data collected by the sensor 71, the test accuracy is improved, and then, in the test process, the probe 51 in the detection device 5 fixedly connected to the supporting plate 4 detects the test object, and then the nondestructive inspection instrument 52 outputs the detected data through the signal output port 53, the staff collects the data of signal output port 53 output, close vibrating motor 2 through control switch after the experiment, vibrating motor 2 stop work, vibration strip 8 stop work thereupon, the staff takes off the test object from rack 6, the staff compares the test data that nondestructive test device 5 and sensing device 7 gathered, and then the analysis test data, reach the test result, through setting up nondestructive test device 5 and sensing device 7, the efficiency of test is improved, the accuracy of test data has also been improved simultaneously, the accuracy of test result has been guaranteed.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high efficiency bridge structures fatigue test device, includes test bench (1), its characterized in that: the testing device comprises a testing table (1), a placing frame (6) is movably connected to the upper end face of the testing table (1), a supporting plate (4) is arranged on one side of the placing frame (6), the bottom of the supporting plate (4) is fixedly connected with the upper end face of the testing table (1), a nondestructive testing device (5) is fixedly connected to the upper end face of the supporting plate (4), the nondestructive testing device (5) comprises a probe (51) and a flaw detector (52), one end of the probe (51) is connected with the flaw detector (52) through a lead, the outer side wall of the flaw detector (52) is electrically connected with a signal output port (53), the bottom of the flaw detector (52) is connected with a first storage battery (54) through a lead, the bottom of the first storage battery (54) is fixedly connected with the supporting plate (4), a sensing device (7) is embedded into one side wall of the placing frame (6), and the sensing device (7) comprises a sensor (71), sensor (71) are connected through the wire with second battery (72), the bottom fixedly connected with vibration strip (8) of rack (6), vibrating motor (2) are installed to the right side of rack (6), the lower extreme fixedly connected with connecting plate (21) of vibrating motor (2), the bottom of connecting plate (21) and the up end fixed connection of vibration strip (8).
2. The efficient bridge structure fatigue test device of claim 1, characterized in that: the outer side wall of the placing frame (6) is provided with a clamping groove (61), the sensor (71) is clamped in the clamping groove (61), one side of the sensor (71) is provided with a protective guard (62), and the protective guard (62) is fixedly connected with the clamping groove (61).
3. The efficient bridge structure fatigue test device of claim 1, characterized in that: the lower extreme sliding connection of vibration strip (8) has spout (9), the bottom and test bench (1) fixed connection of spout (9), both ends fixedly connected with dog (91) of spout (9), the bottom of dog (91) and the up end fixed connection of test bench (1).
4. The efficient bridge structure fatigue test device of claim 1, characterized in that: the left side of the placing frame (6) is provided with a baffle (3), and the bottom of the baffle (3) is fixedly connected with the upper end face of the test bed (1).
5. The efficient bridge structure fatigue test device of claim 1, characterized in that: the bottom welding of rack (6) has connecting block (63), rack (6) pass through connecting block (63) fixed connection with vibration strip (8).
6. The efficient bridge structure fatigue test device of claim 1, characterized in that: the vibration strips (8) are arranged in two groups, and the two groups of vibration strips (8) are symmetrically distributed on the upper end face of the test bed (1).
7. The efficient bridge structure fatigue test device of claim 1, characterized in that: the two groups of placing racks (6) are arranged, and the placing racks (6) are in a concave shape.
8. The efficient bridge structure fatigue test device of claim 1, characterized in that: and the four corners of the base of the test bed (1) are fixedly connected with anti-skid pads (11).
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| CN201811145912.2A CN108931348B (en) | 2018-09-29 | 2018-09-29 | Efficient bridge structures fatigue test device |
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| CN201811145912.2A CN108931348B (en) | 2018-09-29 | 2018-09-29 | Efficient bridge structures fatigue test device |
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| CN108931348B true CN108931348B (en) | 2021-02-26 |
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