CN118687802B - Guide rail impact resistance testing device and method for testing impact resistance special-shaped steel pipe guide rail - Google Patents
Guide rail impact resistance testing device and method for testing impact resistance special-shaped steel pipe guide rail Download PDFInfo
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- CN118687802B CN118687802B CN202411071992.7A CN202411071992A CN118687802B CN 118687802 B CN118687802 B CN 118687802B CN 202411071992 A CN202411071992 A CN 202411071992A CN 118687802 B CN118687802 B CN 118687802B
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- 238000012360 testing method Methods 0.000 title claims abstract description 126
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- 230000002457 bidirectional effect Effects 0.000 description 8
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- 239000000463 material Substances 0.000 description 2
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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
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Abstract
The invention relates to the technical field of guide rail detection equipment, in particular to a guide rail impact resistance testing device and a method for testing an impact resistance special-shaped steel pipe guide rail. The angle adjusting arm has the function of adjusting the parallel angle. The bar-shaped fixing plates are provided with a plurality of guide rails to be measured and symmetrically arranged on two sides of the angle adjusting arm. The rotation adjusting device is arranged at one end of the angle adjusting arm, and the movable end of the rotation adjusting device is connected with the angle adjusting arm. The load-bearing simulation vehicle is arranged on the angle adjusting arm and is used for reciprocating along the guide rail to be tested. The mass detection device is arranged on the load simulation vehicle and is used for detecting the state of the guide rail to be detected, and the invention can effectively simulate complex dynamic load in a real working environment and effectively improve the detection effect.
Description
Technical Field
The invention relates to the technical field of guide rail detection equipment, in particular to a guide rail impact resistance testing device, and in particular relates to a method for testing an impact resistance special-shaped steel pipe guide rail.
Background
In the field of industrial production and mechanical equipment, steel pipe guide rails are used as key components and widely applied to various mechanical systems and automation equipment, such as machine tools, production lines, robot arms, transportation equipment and the like. The stability and impact resistance directly affect the operating efficiency and safety of the overall system. However, in the prior art, the stamping-resistant detection of the steel pipe guide rail is often performed after the steel pipe guide rail is pressed by a fixed manner, and the method can primarily evaluate the compression resistance of the guide rail, and the test manner ignores complex dynamic loads possibly faced by the guide rail in practical application, such as impacts with different directions, different frequencies and different strengths. Therefore, the test result often has difficulty in accurately reflecting the impact resistance of the guide rail in a real working environment, and the accuracy of detection is affected.
Disclosure of Invention
Aiming at the problems, the guide rail impact resistance testing device and the method for testing the impact-resistant special-shaped steel pipe guide rail are provided, and the guide rail impact resistance testing device can effectively simulate complex dynamic load in a real working environment and effectively improve the detection effect.
In order to solve the problems in the prior art, the invention provides a guide rail impact resistance testing device which comprises a rotation adjusting device, an angle adjusting arm, a strip-shaped fixing plate, a load simulating vehicle and a quality detecting device. The angle adjusting arm has the function of adjusting the parallel angle. The bar-shaped fixing plates are provided with a plurality of guide rails to be measured and symmetrically arranged on two sides of the angle adjusting arm. The rotation adjusting device is arranged at one end of the angle adjusting arm, and the movable end of the rotation adjusting device is connected with the angle adjusting arm. The load-bearing simulation vehicle is arranged on the angle adjusting arm and is used for reciprocating along the guide rail to be tested. The mass detection device is arranged on the load simulation vehicle and is used for detecting the state of the guide rail to be detected.
Preferably, the rotation adjusting device comprises a rotatable and movable rotation mounting block, and the rotation mounting block is used for adjusting the horizontal axis to rotate.
Preferably, the rotation adjusting device further comprises a rotation limiting device for limiting rotation of the rotation mounting block, the rotation limiting device comprises a limiting fixing disc mounted on the rotation mounting block, a plurality of positioning holes are formed in the limiting fixing disc, the rotation limiting device further comprises a movement limiting frame for limiting rotation of the limiting fixing disc, and a plurality of elastic clamping columns matched with the positioning holes are further mounted on the movement limiting frame.
Preferably, the angle adjusting arm comprises a fixed connection table arranged on the rotary mounting block, support guide rails are arranged on two sides of the fixed connection table, a movable test arm is further arranged on the fixed connection table, and the movable test arm and the fixed connection table are movably used for adjusting the angle.
Preferably, a plurality of threaded connecting shafts are arranged on the movable test arm, and limiting clamping grooves are formed in the threaded connecting shafts.
Preferably, the bottom of the movable test arm is also provided with a movable buffer mechanism, the movable buffer mechanism comprises a fixed buffer plate and a movable buffer plate, the fixed buffer plate and the movable buffer plate are symmetrical, buffer columns are arranged on the fixed buffer plate and the movable buffer plate, and buffer springs are arranged on the buffer columns.
Preferably, the top of the load simulation vehicle is provided with a limiting collision frame, a driving wheel set is arranged on the limiting collision frame, and a counterweight frame is arranged at the bottom of the limiting collision frame.
Preferably, the driving wheel group comprises a mounting sliding block mounted on the limiting abutting frame, a plurality of transmission shafts are mounted on the mounting sliding block, movable wheels are mounted on the transmission shafts, and transmission gears are mounted on the transmission shafts.
Preferably, the quality detection device comprises a bidirectional ball screw sliding table arranged at the side part of the load simulation vehicle, and detection devices are arranged at the movable ends of the bidirectional ball screw sliding table.
The method for testing the impact-resistant special-shaped steel pipe guide rail comprises the following steps of;
S1, when the impact-resistant special-shaped steel pipe guide rail is detected, firstly, selecting strip-shaped fixing plates matched with the special-shaped steel pipe guide rail in shape and size, wherein the fixing plates are required to be accurately designed so as to ensure that the special-shaped steel pipe guide rail can maintain a stable horizontal supporting state after being installed, avoid errors caused by unstable supporting in the test process, firmly install the special-shaped steel pipe guide rail on the strip-shaped fixing plates in a bolt or welding mode, and ensure the positioning and fixing of the accurate special-shaped steel pipe guide rail in the installation process so that the special-shaped steel pipe guide rail cannot shift or loosen in the test process;
S2, because the special-shaped steel pipe guide rail is applied to environments with different inclination angles, the angle adjusting arm is required to be adjusted according to actual use scenes so as to simulate real working conditions;
S3, adjusting and replacing a driving wheel set on the load-bearing simulation vehicle according to the specific shape of the special-shaped steel pipe guide rail, wherein the new driving wheel set is required to be closely attached to the supporting surface of the special-shaped steel pipe guide rail so as to ensure that the load-bearing simulation vehicle can stably and smoothly move on the special-shaped steel pipe guide rail, and loading proper heavy objects in the load-bearing simulation vehicle so as to simulate the dynamic load born by the special-shaped steel pipe guide rail in actual working conditions;
S4, starting the load simulation vehicle, so that the load simulation vehicle can reciprocate along the special-shaped steel pipe guide rail, and parameters such as the moving speed, the acceleration and the stroke are required to be accurately controlled according to the test requirements so as to simulate the impact with different frequencies and strengths;
s5, the quality detection device monitors and records various physical parameter changes of the special-shaped steel pipe guide rail in the impact process in real time, and the data are used as important basis for evaluating the impact resistance of the guide rail.
Compared with the prior art, the invention has the beneficial effects that:
Through integrating rotation adjusting device, angle adjusting arm, heavy burden analog car and quality detection device, realized the omnidirectional simulation test of guide rail under complicated dynamic load. Compared with the traditional fixed pressure detection method, the device can more accurately simulate various impact conditions possibly encountered by the guide rail in practical application, including impacts in different directions, frequencies and intensities. The omnibearing dynamic simulation test obviously improves the accuracy and the authenticity of the test, so that the test result is more close to the performance of the guide rail in the real working environment. Therefore, research and development personnel can optimize the design, material selection and installation mode of the guide rail based on more accurate test data, so that the overall performance and reliability of the product are improved.
Drawings
Fig. 1 is a perspective view of a rail impact resistance testing apparatus.
Fig. 2 is a front view of the rail impact resistance testing apparatus.
Fig. 3 is a perspective view of a rotation adjusting device of the guide rail impact resistance testing device.
Fig. 4 is an exploded view of the rotation adjustment device of the rail impact resistance test apparatus.
Fig. 5 is an exploded view of a rotation adjustment device of the rail impact resistance test device.
Fig. 6 is a schematic perspective view of an angle adjustment arm in a rail impact resistance testing apparatus.
Fig. 7 is a schematic perspective view of an angle adjusting arm in the guide rail impact resistance test device.
Fig. 8 is a partial enlarged view at a in fig. 7.
Fig. 9is a perspective view of a threaded connection shaft in a rail impact resistance test apparatus.
Fig. 10 is a perspective view of a load simulator and a mass detection device in a rail impact resistance test device.
Fig. 11 is a schematic perspective view of a drive wheel set in a rail impact test apparatus.
Fig. 12 is a schematic perspective view of a detection device in the rail impact resistance test device.
The reference numerals in the figures are:
1. the ultrasonic sensor comprises a rotation adjusting device, 11, a rotation mounting seat, 12, a rotation mounting block, 13, a rotation driving device, 14, a rotation limiting device, 141, a limiting fixed disc, 1411, a positioning hole, 142, a moving limiting frame, 143, a first linear driver, 144, an elastic clamping column, 2, an angle adjusting arm, 21, a fixed connecting table, 211, a supporting guide rail, 22, a second linear driver, 23, a movable testing arm, 231, a rotation clamping frame, 232, a threaded connecting shaft, 233, a limiting clamping groove, 234, an infrared sensor, 235, a fixed buffer plate, 236, a movable buffer plate, 237, a buffering column, 238, a buffer spring, 24, a stable supporting device, 241, a telescopic arm, 3, a strip-shaped fixed plate, 4, a load simulating vehicle, 41, a limiting collision frame, 42, a counterweight frame, 43, a driving wheel set, 431, a mounting slide block, 432, a transmission shaft, 433, a transmission gear, 434, a moving wheel, 44, a second rotation driving device, 5, a quality detecting device, 51, a bidirectional ball screw, 52, a detecting device, 521, a mounting seat, 522, a collision detecting roller, 522, a buffering roller, 238, a buffering spring, a damping roller, a guide rail, a 31, a push and a camera, a compression device.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 12, the rail impact resistance testing apparatus includes a rotation adjusting device 1, an angle adjusting arm 2, a bar-shaped fixing plate 3, a load simulator 4, and a mass detecting device 5. The angle adjusting arm 2 has a function of adjusting the parallel angle. The strip-shaped fixing plates 3 are provided with a plurality of symmetrically arranged on two sides of the angle adjusting arm 2, and the strip-shaped fixing plates 3 are used for installing the guide rail 6 to be measured. The rotation adjusting device 1 is arranged at one end of the angle adjusting arm 2, and the movable end of the rotation adjusting device 1 is connected with the angle adjusting arm 2. The load-bearing simulation vehicle 4 is mounted on the angle adjusting arm 2, and the load-bearing simulation vehicle 4 is used for reciprocating along the guide rail 6 to be tested. The mass detection device 5 is installed on the load simulator 4, and the mass detection device 5 is used for detecting the state of the guide rail 6 to be detected.
First, the rail 6 to be measured is mounted on the bar-shaped fixing plate 3 by means of bolts or welded fastening. The strip-shaped fixing plates 3 are symmetrically distributed on two sides of the angle adjusting arm 2, so that stability and safety of the guide rail 6 in the testing process are ensured. The angle adjusting arm 2 can adjust the parallel angle with the horizontal plane through the adjusting function thereof so as to adapt to the installation angle of the guide rail 6 under different application scenes, thereby simulating the inclination or the horizontal state in the actual working environment. The rotation adjusting device 1 is arranged at one end of the angle adjusting arm 2, and the rotation and the positioning of the angle adjusting arm 2 and all the components on the angle adjusting arm are realized through a precise mechanical structure or an electric driving mode. This function allows the test device to simulate the stress conditions of the rail 6 in different directions, such as side impact, oblique impact, etc. The load simulator 4 is mounted on the angle adjusting arm 2, and its design takes into account the uniform distribution and dynamic stability of the load. The weight simulation car 4 can be internally loaded with weights with different weights according to the requirements so as to simulate the dynamic load born by the guide rail 6 in the actual working condition. The load simulation vehicle 4 reciprocates along the guide rail 6 to be tested through a motor or other driving devices, and simulates continuous work or sudden impact scenes of the guide rail 6 in the automatic equipment. The moving speed, the acceleration and the stroke can be accurately regulated according to the test requirement so as to simulate the impact of different frequencies and intensities. The quality detection device 5 is arranged on the load simulation vehicle 4 and is used for monitoring various physical parameter changes of the guide rail 6 in the impact process in real time. The collected data are transmitted to a control system or a data processing center in a wireless or wired mode for real-time analysis and evaluation. According to the preset evaluation criteria, the system can automatically judge whether the impact resistance of the guide rail 6 meets the standard or not and generate a detailed test report. Through multiple tests and data analysis, the impact resistance of the guide rail 6 under different working conditions can be systematically evaluated, and potential design defects or room for improvement can be found. According to the test result, the material, structure, installation mode and the like of the guide rail 6 can be optimized and adjusted so as to improve the stability and safety of the guide rail in practical application. The device effectively improves the detection effect by simulating the complex dynamic load in the real working environment.
Referring to fig. 1 to 3, the rotation adjustment device 1 includes a rotation mounting block 12 that is rotatably movable, the rotation mounting block 12 being used for horizontal axial rotation adjustment.
The rotation adjusting device 1 further comprises a rotation mounting seat 11, the rotation mounting seat 11 is used for limiting and mounting a rotation mounting block 12, rotation stability is guaranteed, a first rotation driving device 13 is further mounted on the rotation mounting seat 11, and the output end of the first rotation driving device 13 is in transmission connection with the rotation mounting block 12.
The turning mounting block 12 is a main body portion of the turning adjustment device 1, which serves as a support and connection point of the angle adjustment arm 2, allowing the angle adjustment arm 2 and its load including the guide rail 6, the load simulator 4, etc. to be turned in a horizontal plane. The interior of the rotating mounting block 12 may contain bearings or sliding mechanisms to reduce friction and wear during rotation, ensuring smooth and steady rotation. The rotary mount 11 is a mounting base for the rotary mount block 12, and is fixed to the main body frame of the test apparatus, providing stable support for the rotary mount block 12. The rotation mounting seat 11 is provided with a limiting structure for limiting the rotation position of the rotation mounting block 12, ensuring accurate adjustment within a preset angle range and avoiding equipment damage or test errors caused by excessive rotation. The first rotary drive means 13, such as an electric motor, a hydraulic motor, etc., which are assumed here not to be described in detail in the known art, are mounted on the rotary mounting 11 and are coupled at their output end to the rotary mounting block 12 by means of a suitable transmission mechanism, such as gears, chains, belts, etc. When the first rotary drive 13 is activated, it transmits torque to the rotary mounting block 12 via the output end, driving it to rotate about the horizontal axis. The speed, direction and angle of rotation can be precisely adjusted by the control system to adapt to different test requirements. The co-operating design between the rotating mounting block 12 and the rotating mounting seat 11, and possibly the bearing or sliding mechanism inside, together ensure the stability and precision of the rotation. These designs reduce the extra load due to vibration or shock and protect other components of the test device from damage. The rotation adjustment device 1 achieves accurate rotation adjustment of the angle adjustment arm 2 and its load by the cooperation of the rotation mounting block 12 and the rotation mounting seat 11, and the power transmission of the first rotation driving device 13.
Referring to fig. 3 to 5, the rotation adjustment device 1 further includes a rotation limiting device 14 for limiting rotation of the rotation mounting block 12, the rotation limiting device 14 includes a limiting fixing plate 141 mounted on the rotation mounting block 12, a plurality of positioning holes 1411 are formed in the limiting fixing plate 141, the rotation limiting device 14 further includes a movement limiting frame 142 for limiting rotation of the limiting fixing plate 141, and a plurality of elastic clamping posts 144 matched with the positioning holes 1411 are further mounted on the movement limiting frame 142.
The movable mounting frame is in sliding connection with the rotary mounting block 12, a first linear driver 143 is further arranged between the movable mounting frame and the rotary mounting seat 11, a reset spring is arranged between the elastic clamping column 144 and the movable mounting frame, a first pressure sensor is further arranged on the movable mounting frame and used for detecting the pressure of the reset spring, and the movable mounting frame is in sliding connection with the rotary mounting seat 11.
The rotation mounting block 12 is mounted on the rotation mounting seat 11 through a bearing or a sliding mechanism, so that the rotation stability is ensured. The limiting fixing plate 141 is fixed on the rotation mounting block 12, and is provided with a plurality of positioning holes 1411 for being matched with the elastic clamping columns 144 on the movement limiting frame 142 to realize the limiting of the rotation angle. The first linear actuator 143 is driven by a cylinder, an electric push rod, or the like, and moves horizontally on the rotation mount 11. The elastic clamping column 144 is installed on the movable limiting frame 142 and matched with the positioning hole 1411 on the limiting fixed disk 141, and the elastic clamping column is kept in contact with the positioning hole 1411 through a reset spring, so that the limiting function is realized. The first pressure sensor is installed on the movement limiting frame 142, and is used for detecting pressure change of the return spring to indirectly reflect the limiting state. When it is desired to adjust the rotation angle of the angle adjustment arm 2 and its load, the control system activates the first rotary drive 13. The first rotary driving device 13 transmits torque to the rotary mounting block 12 through an output end to drive the rotary mounting block to rotate around the horizontal axis. In the rotation process, if the preset limiting angle is reached, the elastic clamping posts 144 on the moving limiting frame 142 will automatically clamp into the corresponding positioning holes 1411 on the limiting fixed disk 141, so as to prevent the rotation of the rotating mounting block 12. If the adjustment is required to other angles, the control system drives the movement limiting frame 142 to move through the first linear driver 143, so that the elastic clamping column 144 is separated from the current positioning hole 1411, and then the first rotation driving device 13 is restarted to perform rotation adjustment until a new limiting position is reached. The clamping between the elastic clamping column 144 and the limiting fixed disc 141 is realized through the compression and release of the reset spring, so that the stability and reliability of the limiting action are ensured. The first pressure sensor monitors the pressure change of the return spring in real time, and when the pressure change exceeds the preset threshold, the first pressure sensor indicates that the limiting action is completed or is in progress, and the control system adjusts the working states of the first linear driver 143 and the first rotary driving device 13 accordingly. Through the limiting and feedback mechanism, the rotation adjusting device 1 can accurately control the rotation angle of the angle adjusting arm 2 and the load thereof, and the accuracy and the repeatability of the testing process are ensured. The stability and the reliability of the testing device are improved.
Referring to fig. 1, 2, 6 and 7, the angle adjusting arm 2 includes a fixed connection table 21 mounted on the rotary mounting block 12, support rails 211 are disposed on two sides of the fixed connection table 21, a movable test arm 23 is further mounted on the fixed connection table 21, and the movable test arm 23 and the fixed connection table 21 movably adjust the angle.
A second linear driver 22 is arranged between the movable test arm 23 and the fixed connection table 21, the tail part of the second linear driver 22 is provided with the fixed connection table 21 for rotary connection, and the telescopic end of the second linear driver 22 is connected with the movable test arm 23. The angle adjusting arm 2 further comprises a stable supporting device 24, the stable supporting device 24 is arranged at one end, far away from the fixed connection table 21, of the movable testing arm 23, a movable adjusting telescopic arm 241 is arranged on the stable supporting device 24, and the telescopic arm 241 is used for supporting the movable testing arm 23 with an adjusted angle.
The fixed connection table 21 is firmly installed on the rotary installation block 12, and the support rails 211 are arranged in parallel on both sides of the fixed connection table 21 to provide a preliminary installation reference for the guide rail 6 to be tested. The stable supporting device 24 is installed at one end of the movable test arm 23 far away from the fixed connection table 21, and the telescopic arm 241 is in an initial state and ready for adjustment as required.
When it is desired to adjust the mounting angle of the rail 6 to be tested, the control system activates the second linear drive 22. The telescopic end of the second linear actuator 22 is extended or retracted to push the movable test arm 23 to rotate around the connection point of the movable test arm and the fixed connection table 21, so that the angle adjustment is realized. In the adjusting process, the angle of the strip-shaped fixed plate 3 on the movable test arm 23 and the guide rail 6 to be tested are synchronously adjusted. Meanwhile, the control system precisely controls the movement of the second linear driver 22 according to the preset angle value or real-time data fed back by the sensor, so as to ensure the accuracy and stability of adjustment. After the movable test arm 23 has been angularly adjusted, the stabilizing support device 24 is active. The extension arm 241 automatically or manually adjusts its extension length and angle according to the inclination and load of the movable test arm 23 to provide necessary supporting force to prevent the movable test arm 23 from shaking or deforming due to gravity or impact. The design of the stabilizing and supporting device 24 ensures the stability and safety of the whole angle adjusting arm 2 in the test process, and improves the reliability of the test result.
Referring to fig. 6 to 9, a plurality of threaded connection shafts 232 are mounted on the movable test arm 23, and a limit clamping groove 233 is formed on the threaded connection shaft 232.
The end part of the movable test arm 23 is also provided with a rotary clamping frame 231, the rotary clamping frame 231 is used for being applicable to the telescopic arm 241 of the supporting device 24 after the angle of the movable test arm 23 is adjusted, the limiting clamping groove 233 of the threaded connection shaft 232 is used for clamping and installing the strip-shaped fixed plate 3, and the stability of the installation of the strip-shaped fixed plate 3 can be effectively improved by being matched with a screw cap. When the strip-shaped fixing plate 3 is installed, the strip-shaped fixing plate 3 is aligned with the limit clamping groove 233 of the threaded connection shaft 232 through the hole position on the strip-shaped fixing plate 3, and is fastened through a nut. This design makes the installation of the bar-shaped fixing plate 3 both fast and stable, and the existence of the limit clamping groove 233 ensures that the bar-shaped fixing plate 3 will not slip or loosen when impacted. When it is necessary to adjust the angle of the movable test arm 23 to change the inclination of the guide rail 6 to be tested, the rotary latch 231 rotates together with the movable test arm 23 during this process, ensuring that it can be kept in contact with the telescopic arm 241 of the steady rest 24 at any angle, thereby providing the necessary supporting force. The telescopic arm 241 of the steady rest 24 is adjusted according to the degree of inclination and the load condition of the movable test arm 23 to provide a sufficient supporting force. The design of the rotating clamping frame 231 enables the telescopic arm 241 to keep the movable test arm 23 stable through the interference effect even if the angle of the movable test arm 23 changes. The safety in the test process is improved, and the accuracy of the test result is also ensured. .
Referring to fig. 6 to 8, a movable buffer mechanism is further installed at the bottom of the movable test arm 23, the movable buffer mechanism includes a fixed buffer plate 235 and a movable buffer plate 236 installed at the bottom of the movable test arm 23, the fixed buffer plate 235 and the movable buffer plate 236 are symmetrical, buffer columns 237 are installed on the fixed buffer plate 235 and the movable buffer plate 236, and buffer springs 238 are installed on the buffer columns 237.
The upper bottom of the movable test arm 23 is provided with a plurality of infrared sensors 234, and a fixed buffer plate 235 and a movable buffer plate 236 are respectively disposed at both sides of the detection area.
The buffer posts 237 are fixed to the fixed buffer plate 235 and the movable buffer plate 236, respectively, and a buffer spring 238 is installed on each buffer post 237 to provide a necessary elastic buffer effect. When the load simulator car 4 moves on the guide rail 6 and contacts the movable test arm 23, it first contacts the movable buffer plate 236 or the fixed buffer plate 235. At this time, the buffer springs 238 on the movable buffer plate 236 or the fixed buffer plate 235 start to function, absorb and alleviate the impact force caused by the load simulator car 4, and protect the guide rail 6 and the test device from damage caused by direct impact. When the load simulator 4 needs to be separated from the movable test arm 23, the movable buffer plate 236 can be stored in the movable test arm 23 to make room for the load simulator 4 to pass through, so that unnecessary obstruction and collision are avoided. At the bottom of the movable test arm 23, a plurality of infrared sensors 234 are also mounted. The sensors are used for monitoring the moving position and the moving times of the load simulation vehicle 4 in real time, and provide important basis for collecting and analyzing test data. The infrared sensors 234 are disposed at both sides of the detection area, i.e., in the space between the fixed buffer plate 235 and the movable buffer plate 236, to ensure that the movement of the load simulator car 4 can be accurately captured. These data will be transmitted in real time to the control unit of the test system for subsequent data analysis and generation of test reports. The safety and the accuracy of the test are improved, and the automation degree and the intelligent level of the test device are also enhanced.
Referring to fig. 1,2 and 10, a limiting collision frame 41 is mounted on the top of the load simulation vehicle 4, a driving wheel set 43 is mounted on the limiting collision frame 41, and a counterweight frame 42 is mounted at the bottom of the limiting collision frame 41.
The second rotation driving device 4413 is further installed on the limiting abutting frame 41, the second rotation driving device 4413 is in transmission connection with the driving wheel set 43, a plurality of installation sliding rails are installed on the counterweight frame 42, the installation sliding rails are used for installing the counterweight, and the second rotation driving device 4413 is omitted in detail in the prior art.
The limit-pressing frame 41 is mounted on the top of the load simulator car 4 as a main support structure of the whole load and a mounting base of a driving system. It not only provides a stable mounting platform for the drive wheel set 43, but also limits the range of movement of the load simulator car 4 on the guide rail 6 by its design, ensuring the safety of the test procedure. The driving wheel set 43 is installed on the limiting support 41, and is a key component for realizing the movement of the load simulator car 4 along the guide rail 6. The wheel sets are connected with a second rotation driving device 4413 through a specific transmission mechanism, receive power and convert the power into rolling motion, so as to drive the load simulator car 4 to advance or retreat on the guide rail 6. The second rotation driving device 4413 is controlled by the instruction of the test system control unit, and can adjust parameters such as rotation speed, direction, start and stop according to test requirements so as to realize accurate movement control. The counterweight frame 42 is mounted at the bottom of the limit-pressing frame 41, and is used for bearing and distributing the total weight of the load simulator car 4. It provides sufficient strength and rigidity to ensure stability and safety of the load simulator car 4 during testing. Mounted on the counterweight frame 42 are a plurality of mounting rails for mounting and securing the counterweight. The balancing weight is used for simulating the weight of an actual load, and the simulation test of different load conditions can be realized by adjusting the number and the positions of the balancing weight. The design of installation slide rail makes the installation and the dismantlement of balancing weight become convenient and fast, has also guaranteed stability and the security of balancing weight in the testing process simultaneously. The load simulation vehicle 4 provides reliable simulation load for the impact resistance test of the guide rail 6, and effectively ensures the detection authenticity.
Referring to fig. 10 and 11, the driving wheel set 43 includes a mounting slider 431 mounted on the limiting support 41, a plurality of transmission shafts 432 are mounted on the mounting slider 431, moving wheels 434 are mounted on the transmission shafts 432, and a transmission gear 433 is mounted on the transmission shafts 432.
The transmission gear 433 is in transmission connection with the second rotation driving device 4413, the outer wall of the moving wheel 434 is matched with the top shape of the guide rail 6 to be tested, and the second rotation driving device 4413 is not described in detail herein for the prior art.
The driving wheel set 43 mainly comprises a mounting sliding block 431, a transmission shaft 432, a moving wheel 434, a transmission gear 433 and the like. These components cooperate together to achieve a movement and impact simulation of the test device on the guide rail 6. The mounting slider 431 is designed to be detachably mounted on the limit-abutting frame 41. This design allows for quick replacement or adjustment of the position and configuration of the drive wheel set 43 as needed during testing, improving testing flexibility and efficiency. On the mounting slider 431, a plurality of transmission shafts 432 are mounted. Each drive shaft 432 is provided with a moving wheel 434, and these moving wheels 434 are the parts of the drive wheel set 43 that are in direct contact with the guide rail 6 to be tested. The outer wall shape of the moving wheel 434 is matched with the top shape of the rail 6 to be tested to ensure stable movement along the rail 6 during testing and simulate the stress conditions during actual running or impact. The drive shaft 432 is further provided with a drive gear 433, which drive gear 433 is in driving connection with the second rotary drive 4413 by means of a suitable drive mechanism, such as a chain, belt or gear engagement, etc. When the second rotation driving device 4413 is started, the power is transmitted to the transmission gear 433 through the transmission mechanism, and the transmission shaft 432 and the moving wheel 434 are driven to rotate.
Before testing begins, the weights on the weight frame 42 are adjusted according to the test requirements to simulate the desired load conditions. The second rotation driving device 4413 is started, and the power thereof is transmitted to the transmission gear 433 through the transmission mechanism, thereby driving the transmission shaft 432 and the moving wheel 434 to rotate. Since the outer wall of the moving wheel 434 is matched with the top shape of the guide rail 6 to be tested, and the connection between the mounting slider 431 and the limiting abutting frame 41 is stable and reliable, the driving wheel set 43 can perform stable movement or impact simulation along the guide rail 6. In the testing process, parameters such as deformation, damage condition of the guide rail 6, movement state of the testing device and the like can be observed and analyzed to evaluate the shock resistance of the guide rail 6. The running or impact action in the actual working condition can be effectively simulated, and reliable support is provided for the impact resistance test of the guide rail 6. Meanwhile, the detachable connection design of the mounting sliding block 431 and the limiting abutting frame 41 also improves the flexibility and efficiency of testing.
Referring to fig. 1,2, 10 and 12, the mass detecting device 5 includes a bidirectional ball screw sliding table 51 mounted on the side of the load simulator 4, and detecting devices 52 are mounted on the movable ends of the bidirectional ball screw sliding table 51.
The detection device 52 comprises a mounting seat 521 mounted on the bidirectional ball screw sliding table 51, an ultrasonic detection 522 is mounted on the mounting seat 521, an abutting mounting frame 523 is mounted at the end part of the ultrasonic detection 522, an abutting mounting frame 523, an pushing spring 524 is mounted between the abutting mounting frame 523 and the mounting seat 521, abutting rollers 5231 are mounted on the abutting mounting frame 523 and used for abutting the side parts of the strip-shaped fixing plate 3, and detection cameras 525 are mounted at the upper end and the lower end of the abutting mounting frame 523.
The bidirectional ball screw slide table 51 is mounted on the side of the load simulator 4 as a main moving platform of the detection device 52. It can slide back and forth along a set trajectory in both directions, providing precise movement control for the detection device 52. The detecting device 52 is first fixed to the movable end of the bidirectional ball screw slide 51 by the mount 521. An ultrasonic detector 522 for detecting quality problems such as cracks, defects, or deformation, which may exist in the guide rail 6, by using the principle of transmitting and receiving ultrasonic waves is mounted on the mount 521. An abutting mounting frame 523 is mounted at the end of the ultrasonic wave detection 522, and the mounting frame is connected with a mounting seat 521 through a pushing spring 524. The pushing spring 524 is used for providing a certain pretightening force for the abutting mounting frame 523 in the detection process, so that the abutting roller 5231 is ensured to be tightly abutted against the side part of the strip-shaped fixing plate 3, and the detection accuracy and stability are improved. The design of the abutting roller 5231 reduces frictional resistance during the inspection and ensures the smoothness of the inspection path. Meanwhile, detection cameras 525 are mounted at the upper end and the lower end of the supporting mounting frame 523, and can capture image information of a detection area in real time to provide remote visual detection feedback for testers. The design of the whole quality detection device 5 fully considers the precision, efficiency and safety of the test, and provides important technical support for the impact resistance test of the guide rail 6.
The method for testing the impact-resistant special-shaped steel pipe guide rail comprises the following steps of;
S1, when the impact-resistant special-shaped steel pipe guide rail is detected, firstly, the strip-shaped fixing plates 3 matched with the special-shaped steel pipe guide rail in shape and size are selected, and the fixing plates are required to be accurately designed so as to ensure that the special-shaped steel pipe guide rail can maintain a stable horizontal supporting state after being installed, avoid errors caused by unstable supporting in the test process, firmly install the special-shaped steel pipe guide rail on the strip-shaped fixing plates 3 in a bolt or welding mode, and ensure the positioning and fixing of the accurate special-shaped steel pipe guide rail in the installation process so that the special-shaped steel pipe guide rail cannot shift or loosen in the test process.
S2, because the special-shaped steel pipe guide rail is applied to environments with different inclination angles, the angle adjusting arm 2 is required to be adjusted according to actual use scenes so as to simulate real working conditions.
And S3, adjusting and replacing the driving wheel set 43 on the load-bearing simulation vehicle 4 according to the specific shape of the special-shaped steel pipe guide rail, wherein the new driving wheel set 43 is required to be closely attached to the supporting surface of the special-shaped steel pipe guide rail so as to ensure that the load-bearing simulation vehicle 4 can stably and smoothly move on the special-shaped steel pipe guide rail, and loading proper weights in the load-bearing simulation vehicle 4 so as to simulate the dynamic load born by the special-shaped steel pipe guide rail in actual working conditions.
S4, starting the load simulation vehicle 4, so that the load simulation vehicle 4 can reciprocate along the special-shaped steel pipe guide rail, and parameters such as moving speed, acceleration, travel and the like need to be accurately controlled according to test requirements so as to simulate impact with different frequencies and intensities.
S5, the quality detection device 5 monitors and records various physical parameter changes of the special-shaped steel pipe guide rail in the impact process in real time, and the data are used as important basis for evaluating the impact resistance of the guide rail 6.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (4)
1. The guide rail impact resistance testing device is characterized by comprising a rotation adjusting device (1), an angle adjusting arm (2), a strip-shaped fixing plate (3), a load simulating vehicle (4) and a quality detecting device (5);
the angle adjusting arm (2) has the function of adjusting the parallel angle;
The strip-shaped fixing plates (3) are provided with a plurality of symmetrically arranged on two sides of the angle adjusting arm (2), and the strip-shaped fixing plates (3) are used for installing guide rails (6) to be tested;
The rotation adjusting device (1) is arranged at one end of the angle adjusting arm (2), and the movable end of the rotation adjusting device (1) is connected with the angle adjusting arm (2);
the load-bearing simulation vehicle (4) is arranged on the angle adjusting arm (2), and the load-bearing simulation vehicle (4) is used for reciprocating along the guide rail (6) to be tested;
the mass detection device (5) is arranged on the load simulation vehicle (4), and the mass detection device (5) is used for detecting the state of the guide rail (6) to be detected;
The rotation adjusting device (1) comprises a rotatable and movable rotation mounting block (12), and the rotation mounting block (12) is used for adjusting the horizontal axis to rotate;
The rotation regulating device (1) further comprises a rotation limiting device (14) for limiting the rotation of the rotation mounting block (12), the rotation limiting device (14) comprises a limiting fixed disc (141) mounted on the rotation mounting block (12), a plurality of positioning holes (1411) are formed in the limiting fixed disc (141), the rotation limiting device (14) further comprises a movement limiting frame (142) for limiting the rotation of the limiting fixed disc (141), and a plurality of elastic clamping columns (144) matched with the positioning holes (1411) are further mounted on the movement limiting frame (142);
The angle adjusting arm (2) comprises a fixed connection table (21) arranged on the rotary mounting block (12), support guide rails (211) are arranged on two sides of the fixed connection table (21), a movable test arm (23) is further arranged on the fixed connection table (21), and the movable test arm (23) and the fixed connection table (21) can movably adjust the angle;
The top of the load simulation vehicle (4) is provided with a limiting collision frame (41), the limiting collision frame (41) is provided with a driving wheel group (43), the bottom of the limiting collision frame (41) is provided with a counterweight frame (42), the counterweight frame (42) is provided with a plurality of installation sliding rails, the sliding rails are used for installing and fixing counterweight blocks, the counterweight blocks are used for simulating the weight of an actual load, and the simulation test of different load conditions can be realized by adjusting the number and the positions of the counterweight blocks;
The driving wheel set (43) comprises a mounting sliding block (431) mounted on the limiting abutting frame (41), a plurality of transmission shafts (432) are mounted on the mounting sliding block (431), moving wheels (434) are mounted on the transmission shafts (432), and a transmission gear (433) is mounted on the transmission shafts (432);
the transmission gear (433) is in transmission connection with the second rotary driving device (4413), and the outer wall of the moving wheel (434) is matched with the top shape of the guide rail (6) to be tested, so that the moving wheel can stably move along the guide rail (6) in the test process, and the stress condition in the actual running or impact process is simulated;
The quality detection device (5) is including installing two-way ball screw slip table (51) at loading simulation car (4) lateral part, all install detection device (52) on the movable end of two-way ball screw slip table (51), detection device (52) are including installing mount pad (521) on two-way ball screw slip table (51), install ultrasonic detection (522) on mount pad (521), conflict mounting bracket (523) are installed at the tip of ultrasonic detection (522), install thrust spring (524) between conflict mounting bracket (523) and mount pad (521), install conflict gyro wheel (5231) on conflict mounting bracket (523), the lateral part that conflict gyro wheel (5231) are used for contradicting bar fixed plate (3), detection camera (525) are all installed at the upper and lower both ends of conflict mounting bracket (523).
2. The guide rail impact resistance testing device according to claim 1, wherein a plurality of threaded connecting shafts (232) are arranged on the movable testing arm (23), and limiting clamping grooves (233) are formed in the threaded connecting shafts (232).
3. The guide rail impact resistance testing device according to claim 2, wherein the bottom of the movable testing arm (23) is further provided with a movable buffer mechanism, the movable buffer mechanism comprises a fixed buffer plate (235) and a movable buffer plate (236) which are arranged at the bottom of the movable testing arm (23), the fixed buffer plate (235) and the movable buffer plate (236) are symmetrical, buffer columns (237) are arranged on the fixed buffer plate (235) and the movable buffer plate (236), and buffer springs (238) are arranged on the buffer columns (237).
4. The method for testing the impact-resistant special-shaped steel pipe guide rail by adopting the guide rail impact resistance testing device as claimed in any one of claims 1 to 3 is characterized by comprising the following steps of;
S1, when the impact-resistant special-shaped steel pipe guide rail is detected, firstly selecting strip-shaped fixing plates (3) matched with the special-shaped steel pipe guide rail in shape and size, wherein the fixing plates are required to be accurately designed so as to ensure that the special-shaped steel pipe guide rail can maintain a stable horizontal supporting state after being installed, avoid errors caused by unstable supporting in the test process, firmly install the special-shaped steel pipe guide rail on the strip-shaped fixing plates (3) in a bolt or welding mode, and ensure that the special-shaped steel pipe guide rail is accurately positioned and fixed in the installation process so that the special-shaped steel pipe guide rail cannot shift or loose in the test process;
S2, as the special-shaped steel pipe guide rail is applied to environments with different inclination angles, the angle adjusting arm (2) needs to be adjusted according to actual use scenes so as to simulate real working conditions;
s3, according to the specific shape of the special-shaped steel pipe guide rail, adjusting and replacing a driving wheel set (43) on the load-bearing simulation vehicle (4), wherein the new driving wheel set (43) is required to be closely attached to the supporting surface of the special-shaped steel pipe guide rail so as to ensure that the load-bearing simulation vehicle (4) can stably and smoothly move on the special-shaped steel pipe guide rail, and loading proper heavy objects in the load-bearing simulation vehicle (4) so as to simulate dynamic loads born by the special-shaped steel pipe guide rail in actual working conditions;
S4, starting the load-bearing simulation vehicle (4), so that the load-bearing simulation vehicle (4) moves back and forth along the special-shaped steel pipe guide rail, and parameters such as moving speed, acceleration and travel are required to be controlled accurately according to test requirements so as to simulate impact with different frequencies and intensities;
s5, the quality detection device (5) monitors and records various physical parameter changes of the special-shaped steel pipe guide rail in the impact process in real time, and the data are used as important basis for evaluating the impact resistance of the guide rail (6).
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| CN116698338A (en) * | 2023-06-09 | 2023-09-05 | 华中科技大学 | Impact angle adjusting device of impact testing machine |
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| CN206756415U (en) * | 2017-05-16 | 2017-12-15 | 中国包装科研测试中心 | A kind of carton clamps experimental provision Hydrauservo System |
| CN208109424U (en) * | 2018-04-05 | 2018-11-16 | 中南大学 | A kind of railway track and wheel hub high-frequency percussion loading simulator |
| CN109946164B (en) * | 2019-03-11 | 2020-07-24 | 中国矿业大学(北京) | Experiment platform and experiment method for simulating coal and rock catastrophe of coal mine stope |
| CN110593953B (en) * | 2019-09-06 | 2020-11-06 | 绍兴文理学院 | Device and method for testing impact resistance of roadway support system under simulated rockburst conditions |
| KR102585475B1 (en) * | 2021-03-02 | 2023-10-10 | 한국과학기술원 | Test System and Method for Non-explosive Underwater Shock Test of Ship |
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