CN110779821A - Concrete sleeper fatigue strength testing device and monitoring system - Google Patents
Concrete sleeper fatigue strength testing device and monitoring system Download PDFInfo
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- CN110779821A CN110779821A CN201911013424.0A CN201911013424A CN110779821A CN 110779821 A CN110779821 A CN 110779821A CN 201911013424 A CN201911013424 A CN 201911013424A CN 110779821 A CN110779821 A CN 110779821A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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Abstract
The invention belongs to the technical field of railway test devices, and discloses a concrete sleeper fatigue strength test device which comprises a pressure device and a vibration device, wherein the vibration device comprises a base, a fixing part and a first power device; the pressure device comprises a hydraulic lifter, a top plate and a hydraulic lifting column, and the pressure device further comprises a second power device. The invention also discloses a monitoring system of the concrete sleeper fatigue strength testing device, which comprises a vibration motor, a linear servo actuating machine, a hydraulic elevator, a nondestructive testing device and a control system. The fatigue strength testing device for the concrete sleeper is simple in structure and easy to operate, and is beneficial to improving the efficiency of a fatigue test and shortening the period of the fatigue test. The monitoring system of the concrete sleeper fatigue strength testing device provided by the invention utilizes the nondestructive testing device and the sensor to detect and transmit the experimental data, so that the data acquired by the tester for the concrete sleeper is more accurate and timely.
Description
Technical Field
The invention belongs to the technical field of railway test devices, and particularly relates to a concrete sleeper fatigue strength test device and a monitoring system.
Background
In the process of world urbanization, traffic problems become more serious, and subways and light rails play an increasingly important role in urban traffic as novel vehicles. Railroad ties are an important component of railways. The sleeper is basically a reinforced concrete member at present. China railways also adopt a large number of prestressed concrete sleepers since 1957, and about 6445 thousands of sleepers are laid by the end of 1983. The annual output of 1983 is more than 400 ten thousand, and accounts for about one fourth of the annual output of 1500 ten thousand of the world prestressed concrete sleepers. The concrete sleeper has been applied to all railway trunk lines in China, and the application range is extremely wide.
At present, the pulsation fatigue test technology is mostly adopted for the fatigue performance test of the concrete sleeper. However, the fatigue test of the sleeper continues to be low in efficiency, high in cost and complicated in test operation due to the limited manufacturing capability of the testing machine in the last 50-60 years. In addition, due to the lack of a special fatigue testing device, the existing fatigue testing device is complex in structure and complex in operation, the efficiency of the fatigue test is seriously influenced, and the period of the fatigue test is prolonged.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a concrete sleeper fatigue strength testing device and a monitoring system.
The technical scheme adopted by the invention is as follows:
a concrete sleeper fatigue strength test device comprises a pressure device and a vibration device, wherein the vibration device comprises a base, a fixing piece for fixing a concrete sleeper and a first power device for driving the concrete fixing piece to vibrate, the fixing piece is arranged on the base, the first power device is arranged on one side of the fixing piece, and a nondestructive testing device is arranged on one side of the fixing piece; the pressure device comprises a hydraulic lifter, a top plate and a hydraulic lifting column, the top plate is arranged on one side of the hydraulic lifter, the hydraulic lifting column is arranged on one side of the top plate, the pressing device is arranged on one side of the hydraulic lifting column, and the second power device is used for driving the pressing device to reciprocate.
Furthermore, the pressing device comprises a movable cross beam, a sliding cross beam and pressing wheels, the movable cross beam is arranged on one side, away from the top plate, of the hydraulic lifting column, the sliding cross beam is arranged on one side, away from the hydraulic lifting column, of the movable cross beam, the pressing wheels are arranged on one side, away from the movable cross beam, of the sliding cross beam, and the pressing wheels are symmetrically arranged at two ends of the sliding cross beam; one side of the fixing part, which is far away from the base, is provided with a first groove used for being matched with a concrete sleeper.
Furthermore, the pressing device further comprises a first guide post arranged on the movable cross beam, the first guide post is positioned on one side of the sliding cross beam, and at least 2 first guide posts are arranged on the movable cross beam; a supporting seat is arranged at one end, far away from the movable cross beam, of the first guide pillar; and a second guide post is arranged on the top plate, and one end, far away from the top plate, of the second guide post is connected with the movable cross beam.
Furthermore, a first through hole used for being matched with the first guide column is formed in the movable cross beam, and a first blocking block is arranged at one end, far away from the supporting seat, of the first guide column; the top plate is provided with a second through hole used for being matched with the second guide post, and a second stop block is arranged at one end, far away from the movable cross beam, of the second guide post.
Furthermore, the first power device comprises a vibration motor arranged on the base and a vibration bar connected with the vibration motor, a slide bar matched with the vibration bar is arranged on the base, the vibration bar is connected with the slide bar in a sliding manner, and the slide bar is of a T-shaped structure; the fixed piece is connected with the sliding rod through the vibrating strip.
Furthermore, two fixing pieces are arranged on the base, and one side of each fixing piece, which is close to the base, is connected with one vibrating strip; the vibrating motor is close to the one end of base is provided with the mounting panel, the mounting panel is close to one side of base with the vibration strip is connected.
Furthermore, two ends of the sliding rod are provided with baffles, and the mounting plate is arranged on one side of the fixing piece, which is far away from the nondestructive testing device; one end of the fixing piece, which is far away from the base, is provided with a compression column.
Furthermore, the second power device comprises a linear servo actuating machine, and the linear servo actuating machine is connected with the sliding cross beam through a telescopic rod.
A monitoring system of a concrete sleeper fatigue strength testing device comprises a vibration motor, a linear servo actuating machine, a hydraulic elevator, a nondestructive testing device and a control system;
the control system is connected with the vibration motor, the linear servo actuating machine and the hydraulic elevator, is used for controlling the vibration frequency of the vibration motor, controlling the running speed and the running amplitude of the linear servo actuating machine and controlling the pressure of the hydraulic elevator;
the vibration motor is connected with the control system and is used for driving the vibration strip to vibrate so as to drive the concrete sleeper to vibrate;
the linear servo actuating machine is connected with the control system and is used for driving the sliding cross beam to reciprocate and further driving the pressing wheel to reciprocate;
the hydraulic lifter is connected with the control system and used for driving the movable cross beam to lift and further provide pressure for the concrete sleeper;
the sensor is connected with the control system, arranged in the first groove and used for carrying out data monitoring and data collection on the concrete sleeper;
and the nondestructive testing device is connected with the control system and used for detecting the concrete sleeper.
The invention has the beneficial effects that:
the fatigue strength test device for the concrete sleeper simulates the rolling of the concrete sleeper when a train runs by using the pressure device, and realizes the repeated rolling of the concrete sleeper through the reciprocating motion of the pressing wheel on the concrete sleeper so as to complete the fatigue test. Utilize vibrator simultaneously, the servo machine that actuates of straight line drives the vibration strip motion, the vibration strip is in slide on the slide bar realizes the simulation test, through the cooperation of vibration strip and slide bar. The fatigue strength testing device for the concrete sleeper is simple in structure and easy to operate, and is beneficial to improving the efficiency of a fatigue test and shortening the period of the fatigue test. According to the monitoring system of the concrete sleeper fatigue strength testing device, the control system controls the operation of each component, and the nondestructive testing device and the sensor are used for detecting and transmitting the experimental data, so that the data acquired by a tester for the concrete sleeper is more accurate and timely, and the testing efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the vibration device of the present invention.
Fig. 3 is a schematic view of the construction of the press device of the present invention.
Fig. 4 is a schematic structural view of a concrete sleeper.
In the figure: 1-a base; 2-a vibration motor; 3-a fixing piece; 4-concrete sleepers; 5-sliding the cross beam; 6-moving the beam; 7-linear servo-actuated machines; 8-a top plate; 9-a hydraulic lift; 11-a non-destructive testing device; 12-a baffle plate; 13-a vibrating bar; 14-a mounting plate; 15-a slide bar; 31-a compression column; 41-groove; 42-rail groove; 51-a pinch roller; 61-a first guide pillar; 62-a first stop; 81-a second guide post; 82-hydraulic lifting columns; 83-a second stop; 611-supporting seat.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1 and 4, the fatigue strength testing apparatus for a concrete sleeper 4 of this embodiment includes a pressure device and a vibration device, where the vibration device includes a base 1, a fixing member 3 for fixing the concrete sleeper 4, and a first power device for driving the concrete fixing member 3 to vibrate, the fixing member 3 is disposed on the base 1, the first power device is disposed on one side of the fixing member 3, and one side of the fixing member 3 is provided with a nondestructive testing device 11; pressure device includes hydraulic lift 9, sets up roof 8 and the setting of hydraulic lift 9 one side are in roof 8 is kept away from hydraulic lift 9 one side hydraulic lift post 82, one side that roof 8 was kept away from to hydraulic lift post 82 is provided with closing device, pressure device still including being used for driving closing device makes reciprocating motion's second power device.
The monitoring system of the fatigue strength testing device for the concrete sleeper 4 comprises a vibration motor 2, a linear servo actuating machine 7, a hydraulic lifter 9, a nondestructive testing device 11, a sensor and a control system;
the control system is connected with the vibration motor 2, the linear servo actuating machine 7 and the hydraulic lifter 9, and is used for controlling the vibration frequency of the vibration motor 2, controlling the running speed and the running amplitude of the linear servo actuating machine 7 and controlling the pressure of the hydraulic lifter 9;
the vibration motor 2 is connected with the control system and is used for driving the vibration strip 13 to move so as to drive the concrete sleeper 4 to vibrate;
the linear servo actuating machine 7 is connected with the control system and is used for driving the sliding cross beam 5 to reciprocate so as to drive the pressing wheel 51 to reciprocate;
the hydraulic lifter 9 is connected with the control system and is used for driving the movable cross beam 6 to lift and further provide pressure for the concrete sleeper 4;
the sensor is connected with the control system, arranged in the first groove 41 and used for carrying out data monitoring and data collection on the concrete sleeper 4;
the nondestructive testing device 11 is connected with the control system and is used for detecting the concrete sleeper 4;
the sensor is connected with the control system, arranged in the first groove 41 and used for carrying out data monitoring and data collection on the concrete sleeper 4;
and the nondestructive testing device 11 is connected with the control system and is used for detecting the concrete sleeper 4.
Example 2:
the present embodiment is limited by optimizing on the basis of the above embodiment 1, and as shown in fig. 1 to 4, the fatigue strength testing apparatus for a concrete sleeper 4 of the present embodiment includes a pressure device and a vibration device, the vibration device includes a base 1, a fixing member 3 for fixing the concrete sleeper 4, and a first power device for driving the concrete fixing member 3 to vibrate, the fixing member 3 is disposed on the base 1, the first power device is disposed on one side of the fixing member 3, and a nondestructive testing device 11 is disposed on one side of the fixing member 3; pressure device includes hydraulic lift 9, sets up roof 8 and the setting of hydraulic lift 9 one side are in roof 8 is kept away from hydraulic lift 9 one side hydraulic lift post 82, one side that roof 8 was kept away from to hydraulic lift post 82 is provided with closing device, pressure device still including being used for driving closing device makes reciprocating motion's second power device.
The pressing device comprises a movable cross beam 6, a sliding cross beam 5 and pressing wheels 51, wherein the movable cross beam 6 is arranged on one side of the hydraulic lifting column 82, which is far away from the top plate 8, the sliding cross beam 5 is arranged on one side of the movable cross beam 6, which is far away from the hydraulic lifting column 82, the pressing wheels 51 are arranged on one side of the sliding cross beam 5, which is far away from the movable cross beam 6, and the pressing wheels 51 are symmetrically arranged at two ends of the sliding cross beam 5; one side of the fixing part 3 far away from the base 1 is provided with a first groove 41 used for being matched with the concrete sleeper 4.
The pressing device further comprises a first guide post 61 arranged on the movable cross beam 6, the first guide post is positioned on one side of the sliding cross beam 5, and at least 2 first guide posts 61 are arranged on the movable cross beam 6; a supporting seat 611 is arranged at one end, away from the movable beam 6, of the first guide post 61; and a second guide post is arranged on the top plate 8, and one end, far away from the top plate 8, of the second guide post is connected with the movable cross beam 6.
The monitoring system of the fatigue strength testing device for the concrete sleeper 4 comprises a vibration motor 2, a linear servo actuating machine 7, a hydraulic lifter 9, a nondestructive testing device 11 and a control system;
the control system is connected with the vibration motor 2, the linear servo actuating machine 7 and the hydraulic lifter 9, and is used for controlling the vibration frequency of the vibration motor 2, controlling the running speed and the running amplitude of the linear servo actuating machine 7 and controlling the pressure of the hydraulic lifter 9;
the vibration motor 2 is connected with the control system and is used for driving the vibration strip 13 to move so as to drive the concrete sleeper 4 to vibrate;
the linear servo actuating machine 7 is connected with the control system and is used for driving the sliding cross beam 5 to reciprocate so as to drive the pressing wheel 51 to reciprocate;
the hydraulic lifter 9 is connected with the control system and is used for driving the movable cross beam 6 to lift and further provide pressure for the concrete sleeper 4;
the sensor is connected with the control system, arranged in the first groove 41 and used for carrying out data monitoring and data collection on the concrete sleeper 4;
and the nondestructive testing device 11 is connected with the control system and is used for detecting the concrete sleeper 4.
Example 3:
the present embodiment is limited by optimizing on the basis of the above embodiment 1, and as shown in fig. 1 to 4, the fatigue strength testing apparatus for a concrete sleeper 4 of the present embodiment includes a pressure device and a vibration device, the vibration device includes a base 1, a fixing member 3 for fixing the concrete sleeper 4, and a first power device for driving the concrete fixing member 3 to vibrate, the fixing member 3 is disposed on the base 1, the first power device is disposed on one side of the fixing member 3, and a nondestructive testing device 11 is disposed on one side of the fixing member 3; pressure device includes hydraulic lift 9, sets up roof 8 and the setting of hydraulic lift 9 one side are in roof 8 is kept away from hydraulic lift 9 one side hydraulic lift post 82, one side that roof 8 was kept away from to hydraulic lift post 82 is provided with closing device, pressure device still including being used for driving closing device makes reciprocating motion's second power device.
The pressing device comprises a movable cross beam 6, a sliding cross beam 5 and pressing wheels 51, wherein the movable cross beam 6 is arranged on one side of the hydraulic lifting column 82, which is far away from the top plate 8, the sliding cross beam 5 is arranged on one side of the movable cross beam 6, which is far away from the hydraulic lifting column 82, the pressing wheels 51 are arranged on one side of the sliding cross beam 5, which is far away from the movable cross beam 6, and the pressing wheels 51 are symmetrically arranged at two ends of the sliding cross beam 5; one side of the fixing part 3 far away from the base 1 is provided with a first groove 41 used for being matched with the concrete sleeper 4.
The pressing device further comprises a first guide post 61 arranged on the movable cross beam 6, the first guide post is positioned on one side of the sliding cross beam 5, and at least 2 first guide posts 61 are arranged on the movable cross beam 6; a supporting seat 611 is arranged at one end, away from the movable beam 6, of the first guide post 61; and a second guide post is arranged on the top plate 8, and one end, far away from the top plate 8, of the second guide post is connected with the movable cross beam 6.
A first through hole used for being matched with the first guide post is formed in the movable cross beam 6, and a first blocking block 62 is arranged at one end, far away from the supporting seat 611, of the first guide post; the top plate 8 is provided with a second through hole used for being matched with the second guide post, and one end, far away from the movable cross beam 6, of the second guide post is provided with a second blocking block 83.
The first power device comprises a vibration motor 2 arranged on the base 1 and a vibration bar 13 connected with the vibration motor 2, a sliding rod 15 matched with the vibration bar 13 is arranged on the base 1, the vibration bar 13 is connected with the sliding rod 15 in a sliding mode, and the sliding rod 15 is of a T-shaped structure; the fixed part 3 is connected with the sliding rod 15 through the vibrating strip 13.
The base 1 is provided with two fixing pieces 3, and one side of each fixing piece 3 close to the base 1 is connected with one vibrating strip 13; the vibrating motor 2 is close to one end of the base 1 is provided with a mounting plate 14, and one side of the mounting plate 14, which is close to the base 1, is connected with the vibrating strip 13.
Two ends of the sliding rod 15 are provided with baffles 12, and the mounting plate 14 is arranged on one side of the fixing part 3 away from the nondestructive testing device 11; one end of the fixing piece 3 far away from the base 1 is provided with a pressing column 31.
The second power device comprises a linear servo actuating machine 7, and the linear servo actuating machine 7 is connected with the sliding beam 5 through a telescopic rod.
The monitoring system of the fatigue strength testing device for the concrete sleeper 4 comprises a vibration motor 2, a linear servo actuating machine 7, a hydraulic lifter 9, a nondestructive testing device 11 and a control system;
the control system is connected with the vibration motor 2, the linear servo actuating machine 7 and the hydraulic lifter 9, and is used for controlling the vibration frequency of the vibration motor 2, controlling the running speed and the running amplitude of the linear servo actuating machine 7 and controlling the pressure of the hydraulic lifter 9;
the vibration motor 2 is connected with the control system and is used for driving the vibration strip 13 to move so as to drive the concrete sleeper 4 to vibrate;
the linear servo actuating machine 7 is connected with the control system and is used for driving the sliding cross beam 5 to reciprocate so as to drive the pressing wheel 51 to reciprocate;
the hydraulic lifter 9 is connected with the control system and is used for driving the movable cross beam 6 to lift and further provide pressure for the concrete sleeper 4;
the sensor is connected with the control system, arranged in the first groove 41 and used for carrying out data monitoring and data collection on the concrete sleeper 4;
and the nondestructive testing device 11 is connected with the control system and is used for detecting the concrete sleeper 4.
The use method of the fatigue strength testing device for the concrete sleeper 4 in the embodiment comprises the following steps: the concrete sleeper 4 is firstly placed in the first groove 41 of the fixing element 3, and the first groove 41 clamps the concrete sleeper 4. The compression columns 31 are now located above the recesses 41 in the middle of the concrete sleeper 4, and the concrete sleeper 4 is fixed by the compression columns 31. The pinch rollers 51 will then be depressed by the hydraulic lift so that the two pinch rollers 51 are located in the rail grooves at the two ends of the concrete sleeper 4, respectively. The vibration motor 2 and the linear servo actuator 7 are switched on. The linear servo actuating machine 7 drives the vibration strip 13 to move, the vibration strip 13 slides on the sliding rod 15, and the baffle 12 is used for preventing the vibration strip 13 from being separated from the sliding rod 15. At this point, the sensors disposed in first recess 41 collect test data, detect the pressure to which concrete ties 4 are subjected, and transmit the relevant data to the control system. The nondestructive testing device 11 detects the damage of the concrete sleeper 4. The desired amount of pressure is selected and the hydraulic lift 9 transmits a corresponding pressure to the pinch roller 51. The linear servo actuating machine 7 drives the sliding cross beam 5 to slide on the moving cross beam 6, and the sliding cross beam 5 further drives the compaction wheels 51 to slide in the rail grooves of the concrete sleepers 4, so that rolling of the concrete sleepers 4 during running of a train is simulated.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (9)
1. The utility model provides a concrete sleeper fatigue strength test device which characterized in that: the vibration device comprises a base, a fixing piece for fixing the concrete sleeper and a first power device for driving the concrete fixing piece to vibrate, wherein the fixing piece is arranged on the base, the first power device is arranged on one side of the fixing piece, and a nondestructive testing device is arranged on one side of the fixing piece; the pressure device comprises a hydraulic lifter, a top plate and a hydraulic lifting column, the top plate is arranged on one side of the hydraulic lifter, the hydraulic lifting column is arranged on one side of the top plate, the pressing device is arranged on one side of the hydraulic lifting column, and the second power device is used for driving the pressing device to reciprocate.
2. The concrete sleeper fatigue strength test device of claim 1, characterized in that: the pressing device comprises a movable cross beam, a sliding cross beam and pressing wheels, the movable cross beam is arranged on one side, away from the top plate, of the hydraulic lifting column, the sliding cross beam is arranged on one side, away from the hydraulic lifting column, of the movable cross beam, the pressing wheels are arranged on one side, away from the movable cross beam, of the sliding cross beam, and the pressing wheels are symmetrically arranged at two ends of the sliding cross beam; one side of the fixing part, which is far away from the base, is provided with a first groove used for being matched with a concrete sleeper.
3. The concrete sleeper fatigue strength test device of claim 2, characterized in that: the pressing device further comprises a first guide post arranged on the movable cross beam, the first guide post is positioned on one side of the sliding cross beam, and at least 2 first guide posts are arranged on the movable cross beam; a supporting seat is arranged at one end, far away from the movable cross beam, of the first guide pillar; and a second guide post is arranged on the top plate, and one end, far away from the top plate, of the second guide post is connected with the movable cross beam.
4. The concrete sleeper fatigue strength test device of claim 3, characterized in that: a first through hole matched with the first guide post is formed in the movable cross beam, and a first blocking block is arranged at one end, far away from the supporting seat, of the first guide post; the top plate is provided with a second through hole used for being matched with the second guide post, and a second stop block is arranged at one end, far away from the movable cross beam, of the second guide post.
5. The concrete sleeper fatigue strength test device of claim 1, characterized in that: the first power device comprises a vibration motor arranged on the base and a vibration bar connected with the vibration motor, a sliding rod matched with the vibration bar is arranged on the base, the vibration bar is connected with the sliding rod in a sliding manner, and the sliding rod is of a T-shaped structure; the fixed piece is connected with the sliding rod through the vibrating strip.
6. The concrete sleeper fatigue strength test device of claim 5, characterized in that: the base is provided with two fixing pieces, and one side of each fixing piece, which is close to the base, is connected with one vibration strip; the vibrating motor is close to the one end of base is provided with the mounting panel, the mounting panel is close to one side of base with the vibration strip is connected.
7. The concrete sleeper fatigue strength test device of claim 6, characterized in that: the two ends of the sliding rod are provided with baffles, and the mounting plate is arranged on one side of the fixing piece away from the nondestructive testing device; one end of the fixing piece, which is far away from the base, is provided with a compression column.
8. The concrete sleeper fatigue strength test device of claim 1, characterized in that: the second power device comprises a linear servo actuating machine, and the linear servo actuating machine is connected with the sliding cross beam through a telescopic rod.
9. A monitoring system of a concrete sleeper fatigue strength test apparatus as claimed in any one of claims 1 to 8, characterized in that: comprises a vibration motor, a linear servo actuating machine, a hydraulic lifter, a nondestructive testing device and a control system;
the control system is connected with the vibration motor, the linear servo actuating machine and the hydraulic elevator, is used for controlling the vibration frequency of the vibration motor, controlling the running speed and the running amplitude of the linear servo actuating machine and controlling the pressure of the hydraulic elevator;
the vibration motor is connected with the control system and is used for driving the vibration strip to vibrate so as to drive the concrete sleeper to vibrate;
the linear servo actuating machine is connected with the control system and is used for driving the sliding cross beam to reciprocate and further driving the pressing wheel to reciprocate;
the hydraulic lifter is connected with the control system and used for driving the movable cross beam to lift and further provide pressure for the concrete sleeper;
the sensor is connected with the control system, arranged in the first groove and used for carrying out data monitoring and data collection on the concrete sleeper;
and the nondestructive testing device is connected with the control system and used for detecting the concrete sleeper.
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| CN201911013424.0A CN110779821B (en) | 2019-10-23 | 2019-10-23 | Concrete sleeper fatigue strength testing device and monitoring system |
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| CN201911013424.0A CN110779821B (en) | 2019-10-23 | 2019-10-23 | Concrete sleeper fatigue strength testing device and monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092290A (en) * | 2021-03-26 | 2021-07-09 | 太原理工大学 | External prestress reinforced concrete beam fatigue test device and method |
| CN117589608A (en) * | 2024-01-17 | 2024-02-23 | 浙江国检检测技术股份有限公司 | Anchor bolt tension fatigue testing machine |
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