Mechanical property comprehensive test platform

Abstract

The invention discloses a mechanical property comprehensive test platform, which belongs to the technical field of power system support equipment testing, and comprises a console, and a test board is arranged on the right side of the console; a clamp is arranged on the back face of the control table, and a bending resistance testing assembly matched with the clamp is arranged on the testing table. One side, close to the console, of the test board is provided with an anti-torsion test assembly I, and the right side of the anti-torsion test assembly I is provided with an anti-torsion test assembly II matched with the anti-torsion test assembly I; a multifunctional test assembly is arranged on the test board and is used for carrying out a cross arm bending resistance test and a fastener friction force test; and a tensile test assembly for testing the composite insulator is arranged on an internal groove of the test board. Different mechanical properties of different parts can be tested through one test platform, the number of test equipment is reduced, the test process is simplified, the test efficiency is improved, and the test platform has positive influences on design, manufacturing and research and development of the parts in a power system.

Description

[0001] This application is a divisional application. The original application is titled "A comprehensive mechanical properties test platform." The application number is 202411263802.1, and the application date is September 10, 2024. Technical Field

[0002] The present invention relates to the technical field of power system support equipment testing, and in particular to a comprehensive mechanical performance test platform. Background Art

[0003] In power systems, poles serve as crucial infrastructure for supporting and transmitting electricity, and their mechanical properties are directly linked to the normal operation and safety of the system. Accurate mechanical property testing results aid in selecting appropriate materials, ensuring stable component operation under complex operating conditions and preventing premature failure. Composite insulators, a critical component widely used in high-voltage transmission lines, face significant challenges in their mechanical properties, directly impacting their performance under various external forces, including wind loads, ice loads, earthquakes, and other natural forces. Therefore, mechanical property testing of composite insulators can ensure their safety and stability under extreme conditions and prevent accidents caused by insufficient mechanical properties. Crossarms, a crucial component of pole towers, house insulators and hardware, supporting conductors and lightning conductors while maintaining a specified safe distance. To ensure the stable operation and safety of power systems, crossarms undergo a series of tests, including mechanical property testing, to ensure they can withstand the loads of extreme operating environments. This comprehensive assessment of the crossarm's mechanical strength, durability, and adaptability ensures they perform as expected in practical applications, guaranteeing the purity and safety of power transmission. The fasteners connecting poles and crossarms carry the important task of transmitting electrical energy. Any looseness or failure in the connection may lead to power transmission interruption and affect the power supply in a wide area. Therefore, mechanical property testing of fasteners to ensure that they can withstand the expected loads and stresses is a key link in ensuring the safe operation of the power system.

[0004] In summary, the importance of mechanical property testing of various components in power systems lies not only in the comprehensive evaluation of the component's own performance, but also in providing a scientific basis for the design, manufacture, and use of these components through these test results, ensuring the safety and stability of the components, and thus safeguarding the safe operation of the power system and the structural safety of the building. However, existing mechanical property testing equipment is mostly limited to testing a single component, increasing testing cost and time, and resulting in low testing efficiency. Based on this, the present invention proposes a comprehensive mechanical property testing platform. Summary of the Invention

[0005] The purpose of the present invention is to provide a comprehensive mechanical properties test platform to solve the above-mentioned problems.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention provides a comprehensive mechanical property test platform, comprising a control console, wherein a test bench is provided on the right side of the control console;

[0008] A fixture is provided on the back of the console, and a bending test assembly that cooperates with the fixture is provided on the test bench, and the bending test assembly is located at the center of the console; a pole for testing is provided between the fixture and the bending test assembly, and a support assembly is provided at the bottom of the pole at the same horizontal line as the bending test assembly;

[0009] A torsion test assembly 1 is provided on one side of the test bench close to the console, a torsion test assembly 2 cooperating therewith is provided on the right side of the torsion test assembly 1, and a composite insulator for testing is provided between the torsion test assembly 1 and the torsion test assembly 2; the torsion test assembly 1 and the torsion test assembly 2 are located on the left side of the bending test assembly;

[0010] A multifunctional testing assembly is provided on the test bench at the right side of the bending test assembly, and the multifunctional testing assembly is used to perform crossarm bending tests and fastener friction tests;

[0011] A tensile test assembly for testing composite insulators is provided on the inner groove of the test bench.

[0012] Furthermore, the clamp includes a fixed clamping groove fixedly arranged on the console, and a movable clamping groove matching it is provided at one end of the fixed clamping groove away from the console, and the fixed clamping groove and the movable clamping groove are respectively provided with a plurality of connecting holes for connection; the connecting holes are located at the contact ends of the fixed clamping groove and the movable clamping groove, and the plurality of connecting holes are equidistantly distributed.

[0013] Furthermore, the bending test assembly includes a mounting bracket arranged on the end surface of the test bench, and the mounting bracket is distributed perpendicularly to the axial direction of the test bench; a guide block is provided at the front end of the mounting bracket, and a telescopic rod is slidably provided in the guide block; one end of the telescopic rod passes through the guide block and rests on the electric pole, and the other end is connected to the driving device.

[0014] Furthermore, the support assembly includes a support base, a plurality of universal wheels are symmetrically arranged at the bottom of the support base, a screw adjustment rod is arranged at the center position of the upper end surface of the support base, a pole bracket is arranged at the top of the screw adjustment rod, and the pole is located on the pole bracket.

[0015] Furthermore, the torsion test component 1 includes a fixed mounting plate arranged on the end face of the test bench, a rotating component is arranged above the fixed mounting plate, and the rotating component is driven to rotate by a rotating drive device; a four-jaw chuck 1 is fixedly arranged at the output end of the rotating component.

[0016] Furthermore, the rotary drive device includes a motor located on the top of the rotating component housing, and the motor is connected to the input end of the rotating component through a transmission device.

[0017] Furthermore, the torsion test component 2 includes a movable mounting plate arranged on the end face of the test bench, a vertical plate is provided on the top of the movable mounting plate, and a four-jaw chuck 2 that cooperates with the four-jaw chuck 1 is provided on the opposite surface of the vertical plate and the rotating component, and the four-jaw chuck 1 and the four-jaw chuck 2 are coaxially distributed.

[0018] Furthermore, the multifunctional test component includes several vertical support plates fixedly arranged on the test bench, and a horizontal plate is arranged on the top of the vertical support plate; the component used for the bending test includes a groove opened on the left side of the horizontal plate, and a vertically distributed bending plate is fixedly arranged on the inner wall of the groove, and a fixing part is arranged on the bending plate; one end of the cross arm is arranged on the fixing part, and the other end extends to the lower position of the horizontal plate.

[0019] Furthermore, the component on the multifunctional test assembly used for conducting fastener friction test includes a clamp plate arranged on the right side of the horizontal plate, and a plurality of long holes are evenly spaced on the clamp plate, and a plurality of clamps for fastening the poles are provided on the long holes.

[0020] Furthermore, the tensile test assembly includes a fixed rod fixedly set on the right side wall of the test bench, a mobile trolley is set inside the test bench, and fixed connection clips are set on the opposite surfaces of the mobile trolley and the fixed rod. The fixed connection clips are coaxially distributed, and the two ends of the composite insulator are fixedly set on the fixed connection clips.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] The invented comprehensive mechanical property test platform performs bending tests on poles through bending test components, performs torsion tests on composite insulators through torsion test components one and two, performs cross-arm bending tests and fastener friction tests through multi-functional test components, and performs tensile tests on composite insulators through tensile test components, thus realizing different mechanical property tests of different components on one test platform, which not only reduces the number of test equipment, but also simplifies the test process, improves test efficiency, and reduces test costs, and has a positive impact on the design, manufacture and research and development of components in the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 Schematic diagram of the mechanical properties comprehensive test platform structure of the present invention Figure 1 ;

[0025] Figure 2 Schematic diagram of the mechanical properties comprehensive test platform structure of the present invention Figure 2 ;

[0026] Figure 3 is a schematic diagram of the fixture structure;

[0027] Figure 4 This is a schematic diagram of the bending test component structure;

[0028] Figure 5 Schematic diagram of the structure of torsion test component 1 and torsion test component 2;

[0029] Figure 6 Schematic diagram of the multifunctional test component structure Figure 1 ;

[0030] Figure 7 Schematic diagram of the multifunctional test component structure Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the tensile test component structure;

[0032] Figure 9 is a structural diagram of the support assembly;

[0033] Description of reference numerals: 1. console; 2. test bench; 3. fixture; 4. bending test assembly; 5. pole; 6. torsion test assembly 1; 7. torsion test assembly 2; 8. multi-function test assembly; 9. tensile test assembly; 10. cross arm; 11. fastener; 12. support assembly;

[0034] 301, fixed clamping groove; 302, movable clamping groove; 303, connecting hole;

[0035] 401, mounting frame; 402, guide block; 403, telescopic rod;

[0036] 601, fixed mounting plate; 602, rotating assembly; 603, four-jaw chuck 1; 604, motor; 605, transmission device;

[0037] 701, movable mounting plate; 702, vertical plate; 703, four-jaw chuck 2;

[0038] 801, vertical support plate; 802, horizontal plate; 803, bent plate; 804, fixing piece; 805, hoop plate; 806, long hole; 807, hoop;

[0039] 901, fixed rod; 902, fixed connection clamp; 903, mobile trolley;

[0040] 1201. Support base; 1202. Universal wheel; 1203. Screw adjustment rod; 1204. Pole bracket. DETAILED DESCRIPTION

[0041] like Figure 1 、 2 As shown, a comprehensive mechanical properties testing platform includes a console 1, with a test bench 2 mounted on the right side of the console 1. The console 1 is equipped with electronic control components such as an industrial computer, as well as control components such as a display screen and buttons, for fully automatic control of the testing process and improved ease of use. Specifically, the industrial computer and other electronic control components are primarily connected to components used to measure mechanical properties, such as torque sensors, bending sensors, tension sensors, and thrust dynamometers. After collecting, storing, and analyzing their signals, they drive the operation of equipment such as drive devices based on the situation. Since electronic control components such as industrial computers are existing technologies in the field of mechanical properties measurement, they will not be described in detail here.

[0042] A fixture 3 is mounted on the back of the console 1, and a bending test assembly 4 that matches the fixture 3 is mounted on the test bench 2. Due to the long length of the pole 5, the bending test assembly 4 is located at the center of the console 1 to meet measurement requirements. A pole 5 for testing is mounted between the fixture 3 and the bending test assembly 4, and a support assembly is mounted on the bottom of the pole 5 at the same horizontal level as the bending test assembly 4. Depending on the distance, and depending on the requirements for poles 5 of different lengths during testing, the bending test assembly 4 can slide on the test bench 2 via a sliding assembly, such as a slider or a rail.

[0043] like Figure 3As shown, the fixture 3 includes a fixed clamping groove 301 fixedly mounted on the console 1. A matching movable clamping groove 302 is installed at the end of the fixed clamping groove 301 away from the console 1. The fixed clamping groove 301 and the movable clamping groove 302 are respectively installed with a plurality of connection holes 303 for connection. The connection holes 303 are located at the contact end of the fixed clamping groove 301 and the movable clamping groove 302, and the plurality of connection holes 303 are evenly distributed. When testing the pole 5, the large end of the pole 5 is placed in the cylindrical cavity formed between the fixed clamping groove 301 and the movable clamping groove 302, and the connection holes 303 on the fixed clamping groove 301 and the movable clamping groove 302 are connected by bolts and other connecting components. The large end of the pole 5 is fixed by the preload force formed by the strength of the connection.

[0044] like Figure 4 As shown, the bending test assembly 4 includes a mounting frame 401 mounted on the upper end surface of the test bench 2, and the mounting frame 401 is axially perpendicular to the test bench 2. A guide block 402 is installed at the front end of the mounting frame 401, and a telescopic rod 403 is slidably installed in the guide block 402. One end of the telescopic rod 403 passes through the guide block 402 and rests on the pole 5, and the other end is connected to a driving device. Specifically, the driving device in this application adopts a hydraulic cylinder. The driving device drives the telescopic rod 403 to slowly extend outward, and the telescopic rod 403 pushes the small head side of the pole 5 to move slowly until the thrust gradually increases to the rated value of the pole 5, observes the state of the pole 5, and observes the degree of bending of the pole 5 after the test is completed.

[0045] like Figure 9 As shown, the support assembly includes a support base 1201, with a plurality of universal wheels 1202 symmetrically mounted on the bottom of the support base 1201. A lead screw adjustment rod 1203 is mounted at the center of the upper end surface of the support base 1201. A pole bracket 1204 is mounted on the top of the lead screw adjustment rod 1203, and the pole 5 is located on the pole bracket 1204. One side of the pole bracket 1204 can be connected to an arc-shaped clamping block for fixing the pole 5 via a hinged shaft, thereby increasing the support stability of the pole 5 and firmly supporting it on the pole bracket 1204.

[0046] The test process is as follows: first, fix the big end of the pole 5 on the clamp 3, then place the small end of the pole 5 on the pole bracket 1204 and fix it, and adjust the height of the screw adjustment rod 1203 so that the big end and the small end of the pole 5 are on the same horizontal plane; finally, the hydraulic cylinder drives the telescopic rod 403 of the bending test assembly 4 to slowly move toward the direction of the pole 5, gradually increasing the thrust to the rated value of the pole 5, observing the state of the pole 5, and after the test, observing the degree of bending of the pole 5.

[0047] like Figure 5 As shown, a torsion test assembly 1 (6) is mounted on the side of the test bench 2 near the console 1. A matching torsion test assembly 2 (7) is mounted to the right of the torsion test assembly 1. A composite insulator for testing is mounted between the torsion test assemblies 1 (6) and 2 (7). The torsion test assemblies 1 (6) and 2 (7) are located to the left of the bending test assembly 4.

[0048] The torsion test assembly 6 comprises a fixed mounting plate 601 mounted on the upper end surface of the test bench 2. A rotating assembly 602 is mounted above the fixed mounting plate 601. The rotating assembly 602 is driven to rotate by a rotary drive device. A four-jaw chuck 603 is fixedly mounted on the output end of the rotating assembly 602. The rotary drive device comprises a motor 604 located at the top of the rotating assembly 602 housing. The motor 604 is connected to the input end of the rotating assembly 602 via a transmission device 605.

[0049] The torsion test component 2 7 includes a movable mounting plate 701 installed on the upper end surface of the test bench 2, and a vertical plate 702 is installed on the top of the movable mounting plate 701. A four-jaw chuck 2 703 that cooperates with the four-jaw chuck 1 603 is installed on the opposite surface of the vertical plate 702 and the rotating component 602, and the four-jaw chuck 1 603 and the four-jaw chuck 2 703 are coaxially distributed.

[0050] The test process is as follows: Place the composite insulator to be tested between four-jaw chuck 1 603 and four-jaw chuck 2 703. When tightening, first clamp one end of the composite insulator with four-jaw chuck 1 603. Then move the torsion test assembly 2 7 until four-jaw chuck 2 703 clamps the other end of the composite insulator. Finally, start the motor 604 and click the start button to begin the test. The equipment will apply a tensile force to the composite insulator in both directions. After the test is completed, remove the composite insulator and observe the condition of the hardware.

[0051] like Figure 1 As shown, a multifunctional test assembly 8 is installed on the right side of the bending test assembly 4 on the test bench 2. The multifunctional test assembly 8 is used to perform a bending test on the crossarm 10 and a friction test on the fastener 11. A tensile test assembly 9 for testing composite insulators is installed on the inner groove of the test bench 2.

[0052] like Figure 6 、 7 As shown, the multifunctional testing assembly 8 includes a plurality of vertical supporting plates 801 fixedly mounted on the testing table 2 , and a horizontal plate 802 is mounted on the top of the vertical supporting plates 801 .

[0053] The components used for the bending test include a groove opened on the left side of the horizontal plate 802, on the inner wall of the groove is fixedly installed a vertically distributed bending plate 803, on the bending plate 803 is installed a fixing part 804; one end of the cross arm 10 is installed on the fixing part 804, and the other end extends to the lower position of the horizontal plate 802.

[0054] The test process is as follows: fix one end of the crossarm 10 to the bending plate 803 through the fixing part 804, start the equipment to give a thrust to the other end of the crossarm 10, and gradually increase the thrust to the standard rated value of the crossarm 10. After reaching the rated value, it lasts for 60 seconds. After the test is completed, observe whether the hardware and core rod of the crossarm 10 are damaged.

[0055] The components on the multifunctional test assembly 8 for conducting friction test of the fastener 11 include a clamp plate 805 installed on the right side of the horizontal plate 802, and a plurality of long holes 806 are evenly spaced on the clamp plate 805, and a plurality of clamps 807 for fastening the pole 5 are installed on the long holes 806.

[0056] The test process is as follows: the pole 5 is fixed on the clamp plate 805 through a plurality of clamps 807 , the equipment is started, the thrust is gradually increased to push the end fittings of the cross arm 10 , and the tightening condition of the fasteners 11 is observed.

[0057] like Figure 8 As shown, the tensile test assembly 9 includes a fixed rod 901 fixedly mounted on the right side wall of the test bench 2, a mobile trolley 903 is installed inside the test bench 2, and fixed connection clamps 902 are installed on the opposite surfaces of the mobile trolley 903 and the fixed rod 901. The fixed connection clamps 902 are coaxially distributed, and the two ends of the composite insulator are fixedly mounted on the fixed connection clamps 902.

[0058] The test process is as follows: the two ends of the composite insulator are fixedly installed on the fixed connection clamp 902, the equipment is adjusted to the automatic gear, and the mobile trolley 903 is driven to move. The mobile trolley 903 will apply a tensile force to the composite insulator on both sides. After the test is completed, the composite insulator is taken out to observe the status of the hardware.

[0059] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A comprehensive mechanical properties test platform, characterized by: The invention comprises a control console (1) and a test bench (2) installed on the right side of the control console (1); a torsion test assembly and a bending test assembly (4) are sequentially distributed in a horizontal direction above the test bench (2); a clamp (3) is provided on the back of the control console (1); the clamp (3) cooperates with the bending test assembly (4); the bending test assembly (4) is located at the center of the control console (1); a pole (5) for testing is provided between the clamp (3) and the bending test assembly (4); a support assembly (12) is provided at the bottom of the pole (5) at the same horizontal line as the bending test assembly (4); The anti-torsion test assembly comprises an anti-torsion test assembly 1 (6) and an anti-torsion test assembly 2 (7), wherein the anti-torsion test assembly 1 (6) is fixedly mounted on a side close to the console (1), a movable anti-torsion test assembly 2 (7) is arranged on the right side of the anti-torsion test assembly 1 (6), and the anti-torsion test assembly 1 (6) and the anti-torsion test assembly 2 (7) are coaxially arranged; The support assembly comprises a support base (1201), a plurality of universal wheels (1202) are symmetrically arranged at the bottom of the support base (1201), a screw adjustment rod (1203) is arranged at the center position of the upper end surface of the support base (1201), a pole bracket (1204) is arranged on the top of the screw adjustment rod (1203), and the pole (5) is located on the pole bracket (1204).

2. The comprehensive mechanical properties testing platform according to claim 1, characterized in that: The clamp (3) comprises a fixed clamping groove (301) fixedly arranged on the console (1); a movable clamping groove (302) matching the fixed clamping groove (301) is arranged at one end away from the console (1); and a plurality of connection holes (303) for connection are respectively arranged on the fixed clamping groove (301) and the movable clamping groove (302); the connection holes (303) are located at the contact ends of the fixed clamping groove (301) and the movable clamping groove (302), and the plurality of connection holes (303) are distributed at equal distances.

3. The comprehensive mechanical properties testing platform according to claim 1, characterized in that: The anti-torsion test component (6) includes a fixed mounting plate (601) arranged on the upper end surface of the test bench (2), a rotating component (602) is arranged above the fixed mounting plate (601), and the rotating component (602) is driven to rotate by a rotating drive device; a four-jaw chuck (603) is fixedly arranged at the output end of the rotating component (602).

4. The comprehensive mechanical properties testing platform according to claim 3, characterized in that: The rotary drive device comprises a motor (604) located at the top of the housing of the rotary component (602), and the motor (604) is connected to the input end of the rotary component (602) through a transmission device (605).

5. The comprehensive mechanical properties testing platform according to claim 3, characterized in that: The torsion test assembly 2 (7) includes a movable mounting plate (701) arranged on the upper end surface of the test bench (2), a vertical plate (702) is arranged on the top of the movable mounting plate (701), and a four-jaw chuck 2 (703) that cooperates with the four-jaw chuck 1 (603) is arranged on the opposite surface of the vertical plate (702) and the rotating assembly (602), and the four-jaw chuck 1 (603) and the four-jaw chuck 2 (703) are coaxially distributed.

6. The comprehensive mechanical properties testing platform according to claim 1, characterized in that: The bending test assembly (4) comprises a mounting frame (401) arranged on the upper end surface of the test bench (2), wherein the mounting frame (401) is axially perpendicular to the test bench (2); a guide block (402) is provided at the front end of the mounting frame (401), and a telescopic rod (403) is slidably provided in the guide block (402); one end of the telescopic rod (403) passes through the guide block (402) and abuts against the electric pole (5), and the other end is connected to a driving device.

7. The comprehensive mechanical properties testing platform according to claim 1, characterized in that: A multifunctional test assembly (8) is provided on the test bench (2) at the right side of the bending test assembly (4), and the multifunctional test assembly (8) is used to perform a bending test on a cross arm (10) and a friction test on a fastener (11).

8. The comprehensive mechanical properties testing platform according to claim 7, characterized in that: The multifunctional test assembly (8) comprises a plurality of vertical support plates (801) fixedly arranged on the test bench (2), wherein a horizontal plate (802) is arranged on the top of each vertical support plate (801); a component for performing a bending test comprises a groove provided on the left side of the horizontal plate (802), wherein a vertically distributed bending plate (803) is fixedly arranged on the inner side wall of the groove, and a fixing member (804) is arranged on the bending plate (803); one end of the cross arm (10) is arranged on the fixing member (804), and the other end extends to a position below the horizontal plate (802); The component on the multifunctional test assembly (8) for conducting a friction test of a fastener (11) comprises a clamp plate (805) arranged on the right side of the horizontal plate (802), a plurality of long holes (806) being equidistantly provided on the clamp plate (805), and a plurality of clamps (807) for fastening the electric pole (5) being provided on the long holes (806).

9. The comprehensive mechanical properties testing platform according to claim 1, characterized in that: A tensile test assembly (9) for testing composite insulators is provided on the inner groove of the test bench (2).

10. The comprehensive mechanical properties testing platform according to claim 9, characterized in that: The tensile test assembly (9) comprises a fixed rod (901) fixedly arranged on the right side wall of the test bench (2); a movable trolley (903) is arranged inside the test bench (2); fixed connection clamps (902) are arranged on opposite surfaces of the movable trolley (903) and the fixed rod (901); the fixed connection clamps (902) are coaxially distributed, and both ends of the composite insulator are fixedly arranged on the fixed connection clamps (902).

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