Multi-channel electro-hydraulic servo fatigue testing machine

Abstract

The utility model discloses a multichannel electro-hydraulic servo fatigue testing machine which comprises a workbench, an end positioning mechanism is fixedly installed on one side of the top of the workbench, a movable testing mechanism is connected to the top of the workbench and located on one side of the end positioning mechanism in a sliding mode, a driving mechanism is fixedly installed on the top of the workbench, and the driving mechanism is connected with the end positioning mechanism in a sliding mode. According to the utility model, one end of the fabric can be fixed by arranging the end part positioning mechanism, and the other end of the fabric can be fixed by arranging one end of the movable testing mechanism; the position of the arranged movable testing mechanism can be independently adjusted, the arranged driving mechanism can pull the movable testing mechanism to move in a reciprocating mode through the connecting mechanism, in this way, a tension test can be conducted on a fabric test piece, and the arranged connecting mechanism and the arranged driving mechanism can adjust the rotating tension test distance.

Description

Technical Field

[0001] The utility model relates to the technical field of test devices, in particular to a multi-channel electro-hydraulic servo fatigue testing machine. Background Technique

[0002] The multi-channel electro-hydraulic servo fatigue testing machine is an advanced material testing equipment. It can simultaneously apply complex load patterns to multiple samples or different parts of a sample to simulate the dynamic stress state under actual working conditions, so as to evaluate the fatigue performance and durability of materials or structures.

[0003] When testing some special materials, a large number of test samples are required, and most of the sizes of different test samples are different. Because the traditional multi-channel fatigue testing machine needs to apply multiple power sources when testing different samples, it causes a large amount of resource waste, and the compatibility of a single testing machine is poor. For example, when testing fabrics, etc., when testing fabrics of different materials and different sizes, it is necessary to adjust the pulling length and pulling distance during the test. Therefore, we propose a multi-channel electro-hydraulic servo fatigue testing machine. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-channel electro-hydraulic servo fatigue testing machine to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A multi-channel electro-hydraulic servo fatigue testing machine, including a workbench, the bottom of the workbench is fixedly installed with support legs, the top of the workbench is fixedly installed with a protective cover, and a plurality of avoidance grooves are penetrated through the protective cover. One side of the top of the workbench is fixedly installed with an end positioning mechanism for fixing one end of the test piece, the top of the workbench and on one side of the end positioning mechanism is slidably connected with a moving test mechanism, the top of the workbench is fixedly installed with a driving mechanism, the bottom of the moving test mechanism is fixedly installed with a connection mechanism with adjustable length, and one end of the connection mechanism is connected with the driving mechanism.

[0006] Further, the end positioning mechanism includes a mounting plate and a first fixing column. The mounting plate is fixedly installed on the top of the workbench, and the top of the mounting plate is threadedly connected with a first fixing column corresponding to the position of the avoidance groove.

[0007] Further, the mobile testing mechanism includes a slide rail, a slider, a first adjustment plate and a second fixing column. Two groups of slide rails are provided and fixedly installed on the top of the workbench. A slider is slidably connected to the slide rail. A first adjustment plate is fixedly connected to the top of the slider. A through groove is formed in the first adjustment plate corresponding to the position of the first fixing column. A first threaded rod is rotatably connected inside the through groove. One end of the first threaded rod is fixedly connected to a knob. A threaded sleeve is threadedly connected to the outer surface of the first threaded rod. An installation block is fixedly connected to the top of the threaded sleeve. A second fixing column is threadedly connected to the top of the installation block.

[0008] Further, the driving mechanism includes a driving motor, a turntable and a second fixing groove. A driving motor is fixedly installed at the bottom of the workbench. The output end of the driving motor is fixedly connected to a turntable. A plurality of groups of second fixing grooves are formed through the turntable.

[0009] Further, the connecting mechanism includes a connecting column, a first hollow tube, a second adjustment plate and a fixing plate. The bottom of the first adjustment plate is rotatably connected to a first hollow tube through a connecting column. A second adjustment plate is slidably connected inside the first hollow tube. One end of the second adjustment plate is fixedly connected to a fixing plate. A second fixing pin inserted into the second fixing groove is provided on the fixing plate. First fixing grooves are formed on both the first hollow tube and the second adjustment plate. The first fixing grooves on the first hollow tube and the second adjustment plate are connected by a first fixing pin. A plurality of groups of first fixing grooves are formed on the first hollow tube.

[0010] Further, threaded grooves are formed on the tops of both the mounting plate and the mounting block. Second threaded rods threadedly installed inside the threaded grooves are fixedly connected to the bottoms of both the first fixing column and the second fixing column.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: By setting the end positioning mechanism, one end of the fabric can be fixed. Subsequently, one end of the set mobile testing mechanism can fix the other end of the fabric, and the set mobile testing mechanism can be adjusted in position independently, so that fabrics of different sizes can be in a tensioned state. The set driving mechanism can drive the mobile testing mechanism to move reciprocally by using the connecting mechanism, so that a tensile test can be carried out on the fabric test piece. The set connecting mechanism and driving mechanism can adjust the rotation tensile test distance, so that a stretching test with different stretching degrees can be carried out on the fabric test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0013] Figure 2Schematic diagram of the three-dimensional structure of the present utility model after removing the protective cover;

[0014] Figure 3 Schematic diagram of the three-dimensional structure of the mobile test mechanism of the present utility model;

[0015] Figure 4 Schematic diagram of the three-dimensional connection structure between the mounting block and the second fixing column of the present utility model.

[0016] In the figure: 1 workbench, 2 support legs, 3 protective cover, 4 avoidance grooves, 5 end positioning mechanism, 6 mobile test mechanism, 7 driving mechanism, 8 connecting mechanism, 9 mounting plate, 10 first fixing column, 11 slide rail, 12 slider, 13 first adjusting plate, 14 through groove, 15 first threaded rod, 16 knob, 17 threaded sleeve, 18 mounting block, 19 second fixing column, 20 connecting column, 21 first hollow tube, 22 second adjusting plate, 23 fixing plate, 24 first fixing groove, 25 first fixing pin, 26 driving motor, 27 turntable, 28 second fixing groove, 29 second fixing pin, 30 threaded groove, 31 second threaded rod. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-4 , the present utility model provides a technical solution: a multi-channel electro-hydraulic servo fatigue testing machine, including a workbench 1, support legs 2 are fixedly installed at the bottom of the workbench 1, a protective cover 3 is fixedly installed on the top of the workbench 1, a plurality of avoidance grooves 4 are penetrated and opened on the protective cover 3, an end positioning mechanism 5 for fixing one end of the test piece is fixedly installed on one side of the top of the workbench 1, a mobile test mechanism 6 is slidably connected to the top of the workbench 1 and on one side of the end positioning mechanism 5, a driving mechanism 7 is fixedly installed on the top of the workbench 1, a connecting mechanism 8 with adjustable length is fixedly installed at the bottom of the mobile test mechanism 6, and one end of the connecting mechanism 8 is connected to the driving mechanism 7.

[0019] Among them, one end of the fabric can be fixed by setting the end positioning mechanism 5. Subsequently, one end of the moving test mechanism 6 can fix the other end of the fabric, and the set moving test mechanism 6 can be adjusted in position independently, so that fabrics of different sizes can be in a tensioned state. The set driving mechanism 7 can use the connecting mechanism 8 to pull the moving test mechanism 6 to move reciprocally, so that a tensile test can be carried out on the fabric test piece. The set connecting mechanism 8 and driving mechanism 7 can adjust the rotational tensile test distance, so that tensile tests with different stretching degrees can be carried out on the fabric test piece.

[0020] Please refer to Figure 1 and Figure 2 As shown in FIGS. 7 and 8, the end positioning mechanism 5 includes a mounting plate 9 and a first fixing column 10. The mounting plate 9 is fixedly installed on the top of the workbench 1, and a first fixing column 10 is threadedly connected to the top of the mounting plate 9 corresponding to the position of the avoidance groove 4.

[0021] Among them, the set first fixing column 10 is threadedly installed on the mounting plate 9, so that the first fixing column 10 for fixing can be fixedly installed, so that the sewn fabric can be fixed. When clamping and fixing is required, the first fixing column 10 can be rotated and removed to replace other fixtures.

[0022] Please refer to Figure 1 、 Figure 2 and Figure 3 As shown in FIGS. 10 and 11, the moving test mechanism 6 includes two slide rails 11, a slider 12, a first adjustment plate 13 and a second fixing column 19. The two slide rails 11 are fixedly installed on the top of the workbench 1. A slider 12 is slidably connected to the slide rails 11. A first adjustment plate 13 is fixedly connected to the top of the slider 12. A through groove 14 is formed through the first adjustment plate 13 corresponding to the position of the first fixing column 10. A first threaded rod 15 is rotatably connected to the inside of the through groove 14. One end of the first threaded rod 15 is fixedly connected to a knob 16. A threaded sleeve 17 is threadedly connected to the outer surface of the first threaded rod 15. The top of the threaded sleeve 17 is fixedly connected to a mounting block 18. A second fixing column 19 is threadedly connected to the top of the mounting block 18.

[0023] Among them, the position of the corresponding second fixing column 19 is adjusted according to the size of the fabric test piece to be tested. When adjusting, rotate the knob 16 to drive the first threaded rod 15 to rotate. Subsequently, the rotation of the first threaded rod 15 drives the threaded sleeve 17, the mounting block 18 and the second fixing column 19 to move, so that the distance between the first fixing column 10 and the second fixing column 19 can be adjusted, so that fabric test pieces of different sizes can be in a tensioned state.

[0024] Please refer to Figure 1 andFigure 2 The connecting mechanism 8 includes a connecting column 20, a first hollow tube 21, a second adjusting plate 22 and a fixing plate 23. The bottom of the first adjusting plate 13 is rotatably connected to the first hollow tube 21 through the connecting column 20. A second adjusting plate 22 is slidably connected inside the first hollow tube 21. One end of the second adjusting plate 22 is fixedly connected to the fixing plate 23. A second fixing pin 29 inserted into the second fixing groove 28 is provided on the fixing plate 23. First fixing grooves 24 are formed on both the first hollow tube 21 and the second adjusting plate 22. The first fixing grooves 24 on the first hollow tube 21 and the second adjusting plate 22 are connected by a first fixing pin 25. Multiple groups of first fixing grooves 24 are formed on the first hollow tube 21.

[0025] Among them, according to the length that the test piece needs to be stretched after fixation, the first fixing pin 25 and the second fixing pin 29 are removed. Then, the second adjusting plate 22 and the fixing plate 23 are pulled to make the second fixing groove 28 on the fixing plate 23 correspond to the second fixing groove 28 on the turntable 27. Then, the second fixing pin 29 is inserted into the second fixing pin 28 to complete the fixation of the fixing plate 23 and the turntable 27. Then, the first fixing pin 25 is inserted into the first fixing grooves 24 on the first hollow tube 21 and the second adjusting plate 22 for fixation.

[0026] Please refer to Figure 1 and Figure 2 The driving mechanism 7 includes a driving motor 26, a turntable 27 and a second fixing groove 28. The driving motor 26 is fixedly installed at the bottom of the workbench 1. The output end of the driving motor 26 is fixedly connected to the turntable 27. Multiple groups of second fixing grooves 28 are formed through the turntable 27.

[0027] Among them, after the position of the connecting mechanism 8 is fixed, the driving motor 26 is driven to operate. The driving motor 26 can drive the turntable 27 to rotate continuously, so that the connecting mechanism 8 can be used to pull the slider 12 and the first adjusting plate 13 to perform a reciprocating stretching test along the slide rail 11.

[0028] Please refer to Figure 2 and Figure 4 Threaded grooves 30 are formed on the tops of both the mounting plate 9 and the mounting block 18. Second threaded rods 31 threadedly installed in the threaded grooves 30 are fixedly connected to the bottoms of the first fixing column 10 and the second fixing column 19.

[0029] Among them, the first fixing column 10 and the second fixing column 19 are installed through the second threaded rods 31, so that the first fixing column 10 and the second fixing column 19 can be quickly replaced.

[0030] In use, first, the first fixing post 10 provided is threadedly mounted on the mounting plate 9, so that the first fixing post 10 for fixing can be fixedly installed, which can fix the sewn fabric. When clamping and fixing is required, the first fixing post 10 can be rotated and removed to replace it with other fixtures. Adjust the position of the corresponding second fixing post 19 according to the size of the fabric test piece to be tested. When adjusting, rotate the knob 16 to drive the first threaded rod 15 to rotate. Subsequently, the rotation of the first threaded rod 15 drives the threaded sleeve 17, the mounting block 18 and the second fixing post 19 to move, so that the distance between the first fixing post 10 and the second fixing post 19 can be adjusted, and thus fabric test pieces of different sizes can be made to be in a tensioned state. According to the length that the test piece needs to be stretched after being fixed, remove the first fixing pin 25 and the second fixing pin 29. Then pull the second adjusting plate 22 and the fixing plate 23 to make the second fixing groove 28 on the fixing plate 23 correspond to the second fixing groove 28 on the turntable 27. Then insert the second fixing pin 29 into the second fixing groove 28 to complete the fixation of the fixing plate 23 and the turntable 27. Then insert the first fixing pin 25 into the first fixing groove 24 on the first hollow tube 21 and the second adjusting plate 22 for fixation. After the position of the connecting mechanism 8 is fixed, drive the driving motor 26 to operate. The driving motor 26 can drive the turntable 27 to rotate continuously, so that the connecting mechanism 8 can be used to pull the slider 12 and the first adjusting plate 13 to perform a reciprocating stretching test along the slide rail 11.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel electro-hydraulic servo fatigue testing machine, comprising a workbench (1), a support leg (2) fixedly mounted at the bottom of the workbench (1), a protective cover (3) fixedly mounted at the top of the workbench (1), a plurality of avoidance grooves (4) penetrating the protective cover (3), characterized in that: An end positioning mechanism (5) for fixing one end of a test piece is fixedly mounted on one side of the top of the workbench (1); a mobile testing mechanism (6) is slidably connected to the top of the workbench (1) and located on one side of the end positioning mechanism (5); a driving mechanism (7) is fixedly mounted on the top of the workbench (1); a length-adjustable connecting mechanism (8) is fixedly mounted on the bottom of the mobile testing mechanism (6); one end of the connecting mechanism (8) is connected to the driving mechanism (7).

2. A multi-channel electro-hydraulic servo fatigue testing machine according to claim 1, characterized in that: The end positioning mechanism (5) comprises a mounting plate (9) and a first fixing column (10); the mounting plate (9) is fixedly mounted on the top of the workbench (1); the first fixing column (10) is threadedly connected to the top of the mounting plate (9) and at a position corresponding to the avoidance groove (4).

3. A multi-channel electro-hydraulic servo fatigue testing machine according to claim 2, characterized in that: The mobile testing mechanism (6) comprises a slide rail (11), a slider (12), a first adjustment plate (13) and a second fixed column (19); the slide rail (11) is arranged in two groups and is fixedly mounted on the top of the workbench (1); the slide rail (11) is slidably connected to the slide rail (11); the top of the slider (12) is fixedly connected to the first adjustment plate (13); a through groove (14) is provided on the first adjustment plate (13) and corresponds to the position of the first fixed column (10); a first threaded rod (15) is rotatably connected inside the through groove (14); one end of the first threaded rod (15) is fixedly connected to a knob (16); the outer surface of the first threaded rod (15) is threadedly connected to a threaded sleeve (17); the top of the threaded sleeve (17) is fixedly connected to a mounting block (18); the top of the mounting block (18) is threadedly connected to the second fixed column (19).

4. A multi-channel electro-hydraulic servo fatigue testing machine according to claim 3, characterized in that: The driving mechanism (7) comprises a driving motor (26), a rotating disk (27) and a second fixed groove (28); the driving motor (26) is fixedly mounted on the bottom of the workbench (1); the output end of the driving motor (26) is fixedly connected to the rotating disk (27); and a plurality of groups of second fixed grooves (28) are formed through the rotating disk (27).

5. A multi-channel electro-hydraulic servo fatigue testing machine according to claim 4, characterized in that: The connecting mechanism (8) comprises a connecting column (20), a first hollow tube (21), a second adjustment plate (22) and a fixed plate (23); the bottom of the first adjustment plate (13) is rotatably connected to the first hollow tube (21) via the connecting column (20); the interior of the first hollow tube (21) is slidably connected to the second adjustment plate (22); one end of the second adjustment plate (22) is fixedly connected to the fixed plate (23); a second fixing pin (29) inserted into the interior of the second fixing groove (28) is provided on the fixed plate (23); the first hollow tube (21) and the second adjustment plate (22) are both provided with a first fixing groove (24); the first fixing grooves (24) on the first hollow tube (21) and the second adjustment plate (22) are connected via a first fixing pin (25); and a plurality of groups of first fixing grooves (24) are provided on the first hollow tube (21).

6. A multi-channel electro-hydraulic servo fatigue testing machine according to claim 5, characterized in that: The tops of the mounting plate (9) and the mounting block (18) are both provided with threaded grooves (30), and the bottoms of the first fixing column (10) and the second fixing column (19) are both fixedly connected with second threaded rods (31) threadedly mounted inside the threaded grooves (30).

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