Test device for support rods

Abstract

The present disclosure provides a test device for a support rod. The test device comprises a first fixing seat, a second fixing seat, a support rod to be tested, a force applying assembly and a collecting assembly. The force applying assembly is located on the first fixing seat. The collecting assembly comprises a strain gauge and a pressure sensor. The strain gauge is located on the surface of the support rod to be tested. The force applying assembly comprises a bearing plate, a force applying piece and a support lug plate. The force applying piece, the pressure sensor and the support lug plate are all located on the bearing plate. The force applying piece and the support lug plate are respectively located on the opposite two end faces of the pressure sensor. One end of the support rod to be tested is hinged to the support lug plate, and the other end of the support rod to be tested is connected to the second fixing seat. The bearing plate is configured to be detachably installed at different positions of the first fixing seat, so that the force applied by the force applying piece to the pressure sensor has different angles with the axial direction of the support rod to be tested. The present disclosure can realize the simulation load test of the support rod and verify whether the support rod can be used under extreme working conditions.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of test equipment, in particular to a test device for a support rod. BACKGROUND

[0002] A support column is a column installed on the sea. Due to the relatively high height of the support column, a support rod is additionally installed on the support column to avoid overturning of the support column under extreme working conditions such as wind load, wave and tilting swing. One end of the support rod is connected to the support column through a pin shaft, and the other end of the support rod is connected to a base welded with a deck surface.

[0003] When encountering extreme adverse working conditions such as wind load, wave and tilting swing, the support rod will bear loads applied in various directions. If the load borne by the support rod is too large, the support rod will be subject to overyielding, deformation and pin shaft hole deformation and other faults. Therefore, in order to ensure that the support rod can be safely used, a load test needs to be performed before the support rod is installed to the support column. SUMMARY

[0004] The present disclosure provides a test device for a support rod, which can realize a simulated load test of the support rod and verify whether the support rod can be used under extreme working conditions. The technical solution is as follows:

[0005] The present disclosure provides a test device for a support rod, which comprises a first fixing seat, a second fixing seat, a to-be-tested support rod, a force applying assembly and an acquisition assembly. The first fixing seat and the second fixing seat are arranged at intervals, and the force applying assembly is located on the first fixing seat. The acquisition assembly comprises a strain gauge and a pressure sensor. The strain gauge is located on the surface of the to-be-tested support rod. The force applying assembly comprises a bearing plate, a force applying piece and a support lug plate. The force applying piece, the pressure sensor and the support lug plate are all located on the bearing plate. The force applying piece and the support lug plate are respectively located on opposite two end faces of the pressure sensor. The force applying piece is used to apply an action force to the pressure sensor, which is perpendicular to the end face of the pressure sensor. One end of the to-be-tested support rod is hinged to the support lug plate, and the other end of the to-be-tested support rod is connected to the second fixing seat. The bearing plate is configured to be detachably installed at different positions of the first fixing seat, so that the action force applied by the force applying piece to the pressure sensor has different angles with the axial direction of the to-be-tested support rod.

[0006] In an implementation manner of the present disclosure, the surface of the first fixing seat on which the bearing plate is installed has a plurality of connecting screw holes. The plurality of connecting screw holes are uniformly arranged in a circumferential direction with the center of the inner hole of the support lug plate as a center. The surface of the bearing plate has a connecting through hole. The bearing plate is connected through the connecting through hole and different connecting screw holes through a bolt.

[0007] In another implementation manner of the embodiment of the present disclosure, the central angle of the circular arc passing through the centers of the two adjacent connecting screw holes is 10° to 50°.

[0008] In another implementation manner of the embodiment of the present disclosure, the force applying assembly further comprises a fixed clamp and a connecting head, the fixed clamp clamps the pressure sensor, two end surfaces of the pressure sensor are located outside the fixed clamp, one end surface of the pressure sensor is in contact with the force applying piece, the other end surface of the pressure sensor is in threaded connection with one end of the connecting head, the other end of the connecting head is connected with the support lug, and the fixed clamp is located on the plate surface of the bearing plate.

[0009] In another implementation manner of the embodiment of the present disclosure, the force applying assembly further comprises a baffle and a cushion block, one side edge of the baffle is located on the plate surface of the bearing plate, the baffle is arranged in space with the fixed clamp, the force applying piece is located between the baffle and the fixed clamp, and the cushion block is clamped between the force applying piece and the baffle.

[0010] In another implementation manner of the embodiment of the present disclosure, the force applying assembly further comprises a support frame, the support frame is located on the bearing plate, and the support frame is located between the baffle and the fixed clamp, and the force applying piece is located on the support frame.

[0011] In another implementation manner of the embodiment of the present disclosure, the support lug is fixed with the connecting head through a bolt, the force applying assembly further comprises an oil injection bag, the oil injection bag is clamped between the support lug and the connecting head, and the oil injection bag has an oil injection nozzle; the support lug is internally provided with an oil injection channel, a first end of the oil injection channel is located on a hole wall of an inner hole of the support lug, a second end of the oil injection channel is located on a plate surface opposite to the support lug and the connecting head, and the second end of the oil injection channel is in communication with the oil injection nozzle.

[0012] In another implementation manner of the embodiment of the present disclosure, the connecting head is internally provided with an oil delivery channel, a first end of the oil delivery channel is located on a side wall of the connecting head, a second end of the oil delivery channel is located on an end surface opposite to the connecting head and the support lug, and the oil injection bag further has an oil delivery nozzle, the oil delivery nozzle is in communication with the second end of the oil delivery channel.

[0013] In another implementation manner of the embodiment of the present disclosure, the test device further comprises a first lifting assembly and a second lifting assembly, the first lifting assembly is located on one side of the first fixing seat, the first lifting assembly and the force applying assembly are respectively located on opposite sides of the first fixing seat, the second lifting assembly is located on one side of the second fixing seat, and the second lifting assembly and the other end of the support rod to be tested are respectively located on opposite sides of the second fixing seat.

[0014] In another implementation manner of the embodiment of the present disclosure, the first lifting assembly and the second lifting assembly each comprise a mounting block and a lifting rod, one end of the lifting rod is connected with the mounting block, and the other end of the lifting rod is connected with the first fixing seat or the second fixing seat.

[0015] The technical scheme provided by the embodiment of the present disclosure has at least the following beneficial effects:

[0016] The test device for the support rod provided by the embodiment of the present disclosure comprises a first fixing seat, a second fixing seat, a support rod to be tested, a force applying assembly and a collecting assembly. The force applying assembly is arranged on the first fixing seat, and a strain gauge of the collecting assembly is arranged on the surface of the support rod to be tested, for detecting the deformation amount of the support rod to be tested. One end of the support rod to be tested is hingedly connected with a support lug of the force applying assembly, and the other end of the support rod to be tested is connected with the second fixing seat. When the test is needed to be performed, the force applying member applies a force to the pressure sensor, so that the force is transmitted to the support lug on the other side of the pressure sensor and the support rod to be tested connected with the support lug.

[0017] Meanwhile, the bearing plate is detachably connected with the first fixing seat, so that the position of the bearing plate mounted on the first fixing seat can be adjusted, so that the force applied by the force applying member to the pressure sensor has different angles with the axial direction of the support rod to be tested, thereby simulating the load applied in each direction borne by the support rod. In this way, the load borne by the support rod in various working conditions in different directions can be fully simulated, so that the load bearing capacity of the support rod can be effectively evaluated, and it is ensured that the support rod can be safely used after being installed on the support column. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present disclosure, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without any creative effort.

[0019] Figure 1 is a front view of a test device for a support rod provided by the embodiment of the present disclosure;

[0020] Figure 2 is a top view of a test device for a support rod provided by the embodiment of the present disclosure;

[0021] Figure 3 is a top view of another test device for a support rod provided by the embodiment of the present disclosure;

[0022] Figure 4 is a schematic view of another force applying assembly provided by the embodiment of the present disclosure.

[0023] The various marks in the drawings are explained as follows:

[0024] 10, first fixing seat; 11, connecting screw hole;

[0025] 20, second fixing seat;

[0026] 30, support rod to be measured;

[0027] 40, force applying assembly;

[0028] 41, bearing plate; 410, connecting through hole;

[0029] 42, force applying member;

[0030] 43, support ear plate; 431, oil injection channel;

[0031] 44, fixing clamp;

[0032] 45, connecting head; 451, oil delivery channel;

[0033] 46, baffle plate;

[0034] 47, cushion block;

[0035] 48, support frame;

[0036] 49, oil injection bag; 491, oil injection nozzle; 492, oil delivery nozzle;

[0037] 50, collecting assembly; 51, strain gauge; 52, pressure sensor;

[0038] 61, first lifting assembly; 62, second lifting assembly;

[0039] 601, mounting block; 602, lifting rod. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in combination with the drawings.

[0041] Unless otherwise defined, technical terms or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first", "second", "third", and the like, as used in the description and the claims of this disclosure do not have any specific meaning, and are merely used to distinguish one component from another. Similarly, the terms "one", "another", and the like, do not limit the quantity of the mentioned objects, and mean at least one. The terms "comprise", "comprising", and the like, mean that the elements or objects listed after the terms are encompassed by the "comprising" or "comprises" terms, and do not exclude other elements or objects. The terms "connected", "coupled", and the like, do not limit the manner in which the components are connected or coupled, and can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", "top", "bottom", and the like, are used only to represent relative positions, and can change when the absolute positions of the described objects change.

[0042] Figure 1 is a front view of a test device for a support rod provided by an embodiment of the disclosure. Figure 2 is a top view of a test device for a support rod provided by an embodiment of the disclosure. As shown in Figure 1 , 2 , the test device comprises a first fixing seat 10, a second fixing seat 20, a support rod to be tested 30, a force applying assembly 40, and a collecting assembly 50. The first fixing seat 10 and the second fixing seat 20 are arranged at intervals, and the force applying assembly 40 is located on the first fixing seat 10.

[0043] As shown in Figure 1 , 2 , the collecting assembly 50 comprises a strain gauge 51 and a pressure sensor 52, and the strain gauge 51 is located on the surface of the support rod to be tested 30. The force applying assembly 40 comprises a bearing plate 41, a force applying piece 42, and a support lug plate 43, and the force applying piece 42, the pressure sensor 52, and the support lug plate 43 are all located on the bearing plate 41. The force applying piece 42 and the support lug plate 43 are respectively located on opposite end faces of the pressure sensor 52. The force applying piece 42 is used to apply an action force to the pressure sensor 52, which is perpendicular to the end face of the pressure sensor 52. One end of the support rod to be tested 30 is hinged to the support lug plate 43, and the other end of the support rod to be tested 30 is connected to the second fixing seat 20.

[0044] The bearing plate 41 is configured to be detachably installed at different positions of the first fixing seat 10, so that the action force applied by the force applying piece 42 to the pressure sensor 52 has different angles with the axial direction of the support rod to be tested 30.

[0045] The test device for the support rod provided by the embodiment of the present disclosure comprises a first fixing base 10, a second fixing base 20, a support rod to be tested 30, a force applying assembly 40 and a collecting assembly 50. The force applying assembly 40 is arranged on the first fixing base 10, and a strain gauge 51 of the collecting assembly 50 is installed on the surface of the support rod to be tested 30 for detecting the deformation amount of the support rod to be tested 30. One end of the support rod to be tested 30 is hinged to a support lug plate 43 of the force applying assembly 40, and the other end of the support rod to be tested 30 is connected to the second fixing base 20. When the test is needed, an acting force is applied to the pressure sensor 52 by the force applying member 42, so that the acting force is transmitted to the support lug plate 43 on the other side of the pressure sensor 52 and the support rod to be tested 30 connected to the support lug plate 43.

[0046] Meanwhile, the bearing plate 41 is detachably connected to the first fixing base 10. Figure 3 is a top view of another test device for the support rod provided by the embodiment of the present disclosure, as Figure 2 、 3 shown, the position of the bearing plate 41 installed on the first fixing base 10 is adjusted, so that the acting force applied to the pressure sensor 52 by the force applying member 42 has different angles with the axial direction of the support rod to be tested 30, thereby simulating the load applied in each direction borne by the support rod. In this way, the load borne by the support rod in each direction under various working conditions can be fully simulated, thereby effectively evaluating the load bearing capacity of the support rod and ensuring that the support rod can be safely used after being installed on the support column body.

[0047] Optionally, as Figure 2 shown, the surface of the first fixing base 10 for installing the bearing plate 41 has a plurality of connecting screw holes 11, and the plurality of connecting screw holes 11 are uniformly arranged in the circumferential direction with the center of the inner hole of the support lug plate 43 as the center.

[0048] As Figure 2 shown, the surface of the bearing plate 41 has a connecting through hole 410, and the bearing plate 41 is connected through the connecting through hole 410 and different connecting screw holes 11 by means of bolts.

[0049] In the above implementation manner, the connecting through hole 410 of the bearing plate 41 is opposite to the connecting screw holes 11 at different positions by moving the bearing plate 41 to different positions of the first fixing base 10, and then the bearing plate 41 is fixed on the first fixing base 10 by means of bolts passing through the connecting through hole 410 and the connecting screw holes 11, thereby achieving the purpose of controlling the bearing plate 41 to rotate to different angles, so that the acting force applied to the pressure sensor 52 by the force applying member 42 has different angles with the axial direction of the support rod to be tested 30, and the load applied in each direction borne by the support rod can be simulated.

[0050] Optionally, the central angle of the arc passing through the centers of two adjacent connecting screw holes 11 is 10° to 50°.

[0051] Exemplarily, as shown in Figure 2 The central angle of the circular arc passing through the centers of the two adjacent connecting screw holes 11 is 30°.

[0052] Exemplarily, the central angle of the circular arc passing through the centers of the two adjacent connecting screw holes is 45°.

[0053] By setting the central angle of the circular arc passing through the centers of the two adjacent connecting screw holes 11 in the above range, the interval angle of the adjacent connecting screw holes 11 can be avoided to be too large, so that the force applying member 42 can only exert force on the load bearing rod in a small number of different directions.

[0054] Optionally, as shown in Figure 1 , 2 The force applying assembly 40 further comprises a fixed clamp 44 and a connecting head 45, the fixed clamp 44 clamps the pressure sensor 52, and the two end faces of the pressure sensor 52 are located outside the fixed clamp 44.

[0055] Exemplarily, the fixed clamp 44 can be a half clamp, when installing the pressure sensor 52, the pressure sensor 52 is placed in one arc plate of the half clamp, and the other arc plate is closed to form a circular hole clamping the pressure sensor 52, so as to fix the pressure sensor 52 in the fixed clamp 44.

[0056] One arc plate of the fixed clamp 44 can be fixed on the bearing plate 41 by a bolt to prevent the pressure sensor 52 from loosening.

[0057] As shown in Figure 1 , 2 One end face of the pressure sensor 52 is in contact with the force applying member 42, the other end face of the pressure sensor 52 is threadedly connected with one end of the connecting head 45, the other end of the connecting head 45 is connected with the support lug 43, and the fixed clamp 44 is located on the plate face of the bearing plate 41.

[0058] Exemplarily, one end of the connecting head 45 has an external thread, the end face of the pressure sensor 52 opposite to the connecting head 45 has a screw hole, and the end of the connecting head 45 with the external thread is threadedly connected with the screw hole of the pressure sensor 52 to fix the connecting head 45 on the pressure sensor 52.

[0059] Exemplarily, the support lug 43 comprises a connecting plate and two lug plates parallel and spaced on the connecting plate. The other end of the connecting head 45 is plate-shaped, and the other end of the connecting head 45 is in abutment with the connecting plate, and the other end of the connecting head 45 and the connecting plate can be fixedly connected by a bolt. In this way, the force received by the pressure sensor 52 can be transmitted to the support rod 30 to be tested through the connecting head 45 and the support lug 43, so as to realize the load test.

[0060] Optionally, asFigure 1 , 2 As shown, the force-applying component 40 also includes a baffle 46 and a pad 47. One side of the baffle 46 is located on the surface of the bearing plate 41. The baffle 46 and the fixing clamp 44 are arranged at intervals. The force-applying component 42 is located between the baffle 46 and the fixing clamp 44, and the pad 47 is sandwiched between the force-applying component 42 and the baffle 46.

[0061] For example, the force-applying component 42 can be a jack or a hydraulic cylinder. For instance, the force-applying component 42 is a 20T thin jack.

[0062] When the jack or hydraulic cylinder applies force to the pressure sensor 52, it pushes the piston rod to extend or retract, causing the piston rod to press against the pressure sensor 52. If the piston rod cannot contact the pressure sensor 52 even when extended or retracted to its maximum extent, a pad 47 can be placed between the force-applying component 42 and the baffle 46 to ensure that pressure is applied to the pressure sensor 52.

[0063] For example, the pad 47 may include multiple pads 47 of different thicknesses, so that when it is necessary to increase the force applied by the force-applying member 42, a thicker pad 47 can be used to shorten the distance between the force-applying member 42 and the pressure sensor 52, thereby allowing the piston rod of the force-applying member 42 to apply a greater force to the pressure sensor 52.

[0064] For example, pad 47 can be a rubber block.

[0065] Optionally, such as Figure 1 As shown, the force-applying component 40 also includes a support frame 48, which is located on the bearing plate 41 and between the baffle 46 and the fixing clamp 44. The force-applying component 42 is located on the support frame 48.

[0066] By providing a support frame 48 below the force-applying component 42 to support the force-applying component 42, the force-applying component 42 is prevented from slipping between the pressure sensor 52 and the baffle 46 due to gravity, thereby improving the reliability of the force-applying component 40.

[0067] Figure 4 This is a schematic diagram of another force-applying component 40 provided in an embodiment of this disclosure. Figure 4 As shown, the support ear plate 43 and the connector 45 are fixed by bolts. The force application assembly 40 also includes an oil injection bladder 49, which is sandwiched between the support ear plate 43 and the connector 45, and the oil injection bladder 49 has an oil injection nozzle 491.

[0068] like Figure 4As shown, the support lug 43 is provided with an oil injection channel 431, the first end of the oil injection channel 431 is located on the hole wall of the inner hole of the support lug 43, the second end of the oil injection channel 431 is located on the plate surface of the support lug 43 opposite to the connecting head 45, and the second end of the oil injection channel 431 is in communication with the oil injection nozzle 491.

[0069] In the above implementation, the oil injection bag 49 is arranged between the connecting head 45 and the support lug 43, and the oil injection bag 49 is filled with lubricating oil. When the force applied by the force applying member 42 on the pressure sensor 52 increases, the force applied by the connecting head 45 on the oil injection bag 49 also increases, which squeezes the lubricating oil in the oil injection bag 49 to enter the oil injection nozzle 491, and then flows into the oil injection channel 431 and the hole wall of the inner hole of the support lug 43, so that the lubricating oil forms an oil film between the support lug 43 and the pin shaft, reduces the frictional resistance between the support lug 43 and the pin shaft, and slows down the damage to the support lug 43 or the pin shaft caused by the excessive pressure between the support lug 43 and the pin shaft due to the increase of the load.

[0070] For example, the surface of the connecting head 45 is provided with a mounting groove, and the oil injection bag 49 can be placed in the mounting groove, so that only part of the oil injection bag 49 is located outside the mounting groove and in contact with the support lug 43, which can avoid the damage of the oil injection bag 49 caused by the excessive extrusion force.

[0071] Optionally, as shown in the drawings, Figure 4 The connecting head 45 is provided with an oil injection channel 431, the first end of the oil injection channel 431 is located on the hole wall of the inner hole of the support lug 43, the second end of the oil injection channel 431 is located on the plate surface of the support lug 43 opposite to the connecting head 45, and the second end of the oil injection channel 431 is in communication with the oil injection nozzle 491.

[0072] By arranging the oil injection channel 431 on the connecting head 45, the lubricating oil in the oil injection bag 49 can be supplemented in time when the lubricating oil is insufficient, so as to ensure that the hinge position of the support lug 43 and the test support rod 30 is fully lubricated, and the damage caused by the excessive pressure is avoided.

[0073] Optionally, as shown in the drawings, Figure 1 The test device further comprises a first lifting assembly 61 and a second lifting assembly 62, the first lifting assembly 61 is located on one side of the first fixed seat 10, and the first lifting assembly 61 and the force applying assembly 40 are respectively located on opposite sides of the first fixed seat 10, and the second lifting assembly 62 is located on one side of the second fixed seat 20, and the second lifting assembly 62 and the other end of the test support rod 30 are respectively located on opposite sides of the second fixed seat 20.

[0074] By setting the first lifting assembly 61 on one side of the first fixed seat 10, the height of the first fixed seat 10 can be adjusted, and by setting the second lifting assembly 62 on one side of the second fixed seat 20, the height of the second fixed seat 20 can be adjusted. When it is necessary to simulate the extreme working condition of the support rod, the force borne by the support rod is not along the axial direction of the support rod. By controlling the two lifting assemblies, the height of the first fixed seat 10 and the second fixed seat 20 can be different, and the working condition of the force borne by the support rod not along the axial direction of the support rod can be simulated. Therefore, the test device can more comprehensively simulate the actual working condition of the support rod, effectively evaluate the support rod, and ensure that the support rod can be safely and reliably used.

[0075] Optionally, the first lifting assembly 61 and the second lifting assembly 62 each include a mounting block 601 and a lifting rod 602, one end of the lifting rod 602 is connected with the mounting block 601, and the other end of the lifting rod 602 is connected with the first fixed seat 10 or the second fixed seat 20.

[0076] Exemplarily, a plurality of mounting blocks 601 and a plurality of lifting rods 602 can be arranged on one side of the first fixed seat 10, and the plurality of lifting rods 602 are arranged at intervals, so that by controlling the lifting height of different lifting rods 602, the surface of the first fixed seat 10 can also be inclined.

[0077] Exemplarily, a plurality of mounting blocks 601 and a plurality of lifting rods 602 can be arranged on one side of the second fixed seat 20, and the plurality of lifting rods 602 are arranged at intervals, so that by controlling the lifting height of different lifting rods 602, the surface of the second fixed seat 20 can also be inclined, so as to simulate the load that can be borne by the support rod when there is a torque at both ends of the support rod. Therefore, the test device can more comprehensively simulate the actual working condition of the support rod, effectively evaluate the support rod, and ensure that the support rod can be safely and reliably used.

[0078] As an example, three mounting blocks and three lifting rods can be arranged on one side of the first fixed seat 10, and the connecting lines of the distribution positions of the three mounting blocks form an equilateral triangle.

[0079] As an example, three mounting blocks and three lifting rods can be arranged on one side of the second fixed seat 20, and the connecting lines of the distribution positions of the three mounting blocks form an equilateral triangle.

[0080] Exemplarily, the lifting rod can be a telescopic air rod.

[0081] The test device of the support rod provided by the embodiments of the present disclosure can first perform a pre-test of a small pressure load when performing a load test on the support rod, verify whether the test device is assembled in place, whether the data collected by the pressure sensor 52 and the strain gauge 51 is normal, and ensure that all links are normal, and then start the pressure load test of the support rod. Slowly load the force on the support rod by controlling the jack, observe the pressure data and strain data of the support rod under load through the data acquisition system, check whether the appearance of the support rod is intact under different pressures, whether deformation occurs, and whether the pin shaft hole is deformed or burned out.

[0082] The test device of the support rod provided by the embodiments of the present disclosure can verify whether the support rod can normally work under different strength and different direction wind load, wave and different degree of inclination and swing and other extreme working conditions; the bearing plate 41 can change different directions through the connection screw holes 11 arranged at intervals of 30° on the first fixing seat 10, one end of the support rod is fixed and limited through the second fixing seat 20, the other end of the support rod is limited through the fixed clamp 44, and the piston rod of the jack extrudes the pressure sensor 52 when it is extended, and the pressure is transmitted to the support rod, and the direction of the force can be adjusted by adjusting the position of the bearing plate 41 on the first fixing seat 10, so as to simulate that the support rod suffers different direction wind load and different degree of inclination and swing; the gasket 47 between the jack and the baffle 46 can adjust the distance between the pressure sensor 52 and the baffle 46, so as to adjust the pressure range of the support rod under load.

[0083] The above is not any form of limitation on the present disclosure, although the present disclosure has been disclosed as above through embodiments, however, it is not used to limit the present disclosure, any person skilled in the art, without departing from the technical solution range of the present disclosure, can make some changes or modifications to the above disclosed technical content as equivalent embodiments, as long as it does not deviate from the technical solution of the present disclosure, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present disclosure, all still belong to the range of the technical solution of the present disclosure.

Claims

1. A testing device for a support rod, characterized in that, The test device includes: a first fixed seat (10), a second fixed seat (20), a support rod to be tested (30), a force application component (40), and a data acquisition component (50). The first fixed seat (10) and the second fixed seat (20) are arranged at intervals, and the force application component (40) is located on the first fixed seat (10). The acquisition component (50) includes a strain gauge (51) and a pressure sensor (52). The strain gauge (51) is located on the surface of the support rod (30) to be tested. The force application component (40) includes a bearing plate (41), a force application element (42), and a support ear plate (43). The force application element (42), the pressure sensor (52), and the support ear plate (43) are all located on the bearing plate (41). The force application element (42) and the support ear plate (43) are located on opposite end faces of the pressure sensor (52). The force application element (42) is used to apply a force perpendicular to the end face of the pressure sensor (52) to the pressure sensor (52). One end of the support rod (30) to be tested is hinged to the support ear plate (43), and the other end of the support rod (30) to be tested is connected to the second fixed seat (20). The support plate (41) is configured to be detachably mounted at different positions on the first fixed base (10) such that the force applied by the force-applying member (42) to the pressure sensor (52) has a different angle with the axial direction of the support rod (30) to be tested; The first fixing base (10) has a plurality of connecting screw holes (11) on the surface of the bearing plate (41) for mounting. The plurality of connecting screw holes (11) are evenly arranged circumferentially with the center of the inner hole of the supporting ear plate (43) as the center. The surface of the bearing plate (41) has a connecting through hole (410). The bearing plate (41) is connected to different connecting screw holes (11) by bolts passing through the connecting through hole (410). The force-applying component (40) also includes a baffle (46) and a pad (47).

2. The experimental apparatus according to claim 1, characterized in that, The central angle subtended by the arc passing through the center of the two adjacent connecting screw holes (11) is 10° to 50°.

3. The experimental apparatus according to claim 1, characterized in that, The force-applying component (40) further includes: a fixing clamp (44) and a connector (45). The fixing clamp (44) clamps the pressure sensor (52). Both ends of the pressure sensor (52) are located outside the fixing clamp (44). One end of the pressure sensor (52) is in contact with the force-applying component (42). The other end of the pressure sensor (52) is threaded to one end of the connector (45). The other end of the connector (45) is connected to the support ear plate (43). The fixing clamp (44) is located on the surface of the bearing plate (41).

4. The experimental apparatus according to claim 3, characterized in that, One side of the baffle (46) is located on the surface of the bearing plate (41). The baffle (46) and the fixing clamp (44) are arranged at intervals. The force-applying member (42) is located between the baffle (46) and the fixing clamp (44), and the pad (47) is sandwiched between the force-applying member (42) and the baffle (46).

5. The test apparatus according to claim 4, characterized in that, The force-applying component (40) also includes a support frame (48), which is located on the bearing plate (41) and between the baffle (46) and the fixing clamp (44). The force-applying component (42) is located on the support frame (48).

6. The experimental apparatus according to claim 3, characterized in that, The supporting ear plate (43) and the connector (45) are fixed by bolts. The force application component (40) also includes an oil injection bladder (49), which is sandwiched between the supporting ear plate (43) and the connector (45). The oil injection bladder (49) has an oil injection nozzle (491). The support ear plate (43) is provided with an oil injection channel (431). The first end of the oil injection channel (431) is located on the wall of the inner hole of the support ear plate (43), and the second end of the oil injection channel (431) is located on the plate surface opposite to the connector (45) of the support ear plate (43). The second end of the oil injection channel (431) is connected to the oil injection nozzle (491).

7. The experimental apparatus according to claim 6, characterized in that, The connector (45) is provided with an oil delivery channel (451). The first end of the oil delivery channel (451) is located on the side wall of the connector (45), and the second end of the oil delivery channel (451) is located on the end face of the connector (45) opposite to the support ear plate (43). The oil injection bladder (49) also has an oil delivery nozzle (492), which is connected to the second end of the oil delivery channel (451).

8. The testing apparatus according to any one of claims 1 to 7, characterized in that, The test device further includes: a first lifting component (61) and a second lifting component (62). The first lifting component (61) is located on one side of the first fixed seat (10), and the first lifting component (61) and the force application component (40) are located on opposite sides of the first fixed seat (10). The second lifting component (62) is located on one side of the second fixed seat (20), and the other end of the second lifting component (62) and the support rod (30) to be tested are located on opposite sides of the second fixed seat (20).

9. The test apparatus according to claim 8, characterized in that, Both the first lifting assembly (61) and the second lifting assembly (62) include a mounting block (601) and a lifting rod (602). One end of the lifting rod (602) is connected to the mounting block (601), and the other end of the lifting rod (602) is connected to the first fixed seat (10) or the second fixed seat (20).

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