A metal mesh tensile strength testing machine

Abstract

This application relates to a metal mesh tensile strength testing machine. It includes a frame, which is a rectangular frame. A transverse moving beam is arranged along the length of the frame, and an axial moving beam is arranged along the width of the frame. The axial moving beam, the transverse moving beam, and the frame together form a rectangular receiving space for accommodating the metal mesh. A loading component is provided on the frame to drive the axial moving beam to move along the length of the frame. An adjusting component is also provided on the frame to drive the transverse moving beam to move along the width of the frame. Mounting plates are provided on the axial moving beam, the transverse moving beam, and on the frame around the receiving space. Multiple fasteners for connecting the metal mesh are provided on the mounting plates. This application has the effect of improving the accuracy of test results.

Description

Technical Field

[0001] This application relates to the field of slope metal mesh technology, and in particular to a metal mesh tensile strength testing machine. Background Technology

[0002] Metal mesh is woven from steel wire, copper wire, or other metal wires and is widely used in traditional industries, scientific research, production, and daily life. It is an indispensable component, especially in highway slope protection construction. Metal mesh is used to cover slopes with potential geological hazards using wire rope anchors to stabilize the shallow surface soil and rock; alternatively, it can be fixed at a certain angle on the slope using anchors, anchor ropes, support ropes, steel columns, etc., to intercept falling rocks, mud, and solid materials in the soil.

[0003] Before use, metal mesh needs to undergo relevant tests to ensure that its tensile strength and bursting force meet the technical requirements of its supporting system. Currently, a metal mesh tensile strength testing machine is commonly used to test the tensile strength of metal mesh. The tensile testing machine includes a main frame, within which a moving beam and a loading device are slidably installed. The loading device is connected to the moving beam and drives its movement. The metal mesh is installed between the main frame of the testing machine and the moving beam. The loading device drives the moving beam to stretch the metal mesh.

[0004] Regarding the aforementioned technologies, the mesh diameter of metal mesh varies. When processing samples to meet the required width, the width of metal mesh with different mesh diameters can vary by 0.1m to 0.5m. Since the width of the tensile strength testing machine is fixed, the lateral constraints of some specifications of metal mesh samples cannot be tightened. During the test, the samples cannot be guaranteed to be in a naturally flat state, and the metal mesh samples are subjected to uneven force during the test, resulting in inaccurate test results. Summary of the Invention

[0005] To improve the accuracy of test results, this application provides a metal mesh tensile strength testing machine.

[0006] The tensile strength testing machine for metal mesh provided in this application adopts the following technical solution:

[0007] A metal mesh tensile strength testing machine includes a frame, which is a rectangular frame. A transverse moving beam is arranged along the length of the frame, and an axial moving beam is arranged along the width of the frame. The transverse moving beam slides along the width of the frame, and the axial moving beam slides along the length of the frame. The axial moving beam, the transverse moving beam, and the frame form a rectangular receiving space for accommodating the metal mesh. A loading component is provided on the frame to drive the axial moving beam to move along the length of the frame. An adjusting component is also provided on the frame to drive the transverse moving beam to move along the width of the frame. Mounting plates are provided on the axial moving beam, the transverse moving beam, and on the frame around the receiving space. Multiple fasteners for connecting the metal mesh are provided on the mounting plates.

[0008] By adopting the above technical solution, and in accordance with the requirements of the tensile strength test method for the mesh surface in the specification "Flexible Metal Mesh System for Slopes" (JT / T 1328-2020), metal mesh samples with a width of not less than 1m and an area of ​​not less than 1㎡ are selected. The samples are connected to the mounting plates around the accommodating space using fasteners. Since the mesh opening diameters vary and the widths of different samples are different, the lateral moving beam is driven by the adjusting component to move along the width direction of the frame, which can stretch and flatten the samples of different widths. Then, the circumferential moving beam is driven by the loading component to move along the length direction of the frame to conduct a tensile test on the metal mesh samples. Thus, when testing metal mesh samples with different mesh opening specifications, the metal mesh samples can be laterally constrained and tightened, so that the metal mesh samples remain in a natural flat state during the test, ensuring the accuracy of the test results.

[0009] Optionally, the loading assembly includes a hydraulic cylinder mounted on a frame, the piston rod of which extends along the length of the frame and is connected to an axially movable beam.

[0010] By adopting the above technical solution, the hydraulic cylinder is activated, the piston rod of the hydraulic cylinder retracts, and the axial moving beam moves, thereby stretching the metal mesh sample and achieving the effect of facilitating the stretching of the metal mesh sample.

[0011] Optionally, the adjustment assembly includes a lead screw and a handwheel. The lead screw is threaded onto the frame and rotatably connected to the transverse moving beam. The end of the lead screw is engaged within the transverse moving beam, and the handwheel is located at the end of the lead screw opposite to the transverse moving beam.

[0012] By adopting the above technical solution, the handwheel is turned, which drives the lead screw to rotate. When the lead screw rotates, it drives the transverse moving beam to move closer to or away from the long side of the frame, thereby adjusting the distance between the two mounting plates in the width direction of the frame. This facilitates the lateral constraint and fastening of the metal mesh sample, so that the metal mesh sample is in a natural flat state during the tensile test.

[0013] Optionally, it also includes a rotating assembly and a lifting assembly. Each of the multiple mounting plates has a vertically formed through hole. The frame, axial moving beam, and transverse moving beam each have an L-shaped plate on the side that is in contact with the mounting plate. The vertical section of the L-shaped plate is inserted into the through hole on the mounting plate. The rotating assembly is connected to the multiple mounting plates and is used to drive the multiple mounting plates to rotate. The lifting assembly is connected to the rotating assembly and is used to drive the rotating assembly and the mounting plates to move in the vertical direction.

[0014] By adopting the above technical solution, the movable plate is snapped onto the L-shaped plate. The lifting component drives multiple mounting plates to rise and detach from the L-shaped plate. The rotating component then drives the multiple mounting plates to rotate, thereby allowing the positions of the multiple mounting plates to be changed sequentially. When installing or removing the metal mesh sample on the mounting plate, the operator installs or removes the metal mesh from one side of the frame, driving the multiple mounting plates to rotate sequentially to the operator's side. Thus, the operator can complete the installation and removal of the metal mesh sample from one side of the frame, eliminating the need to move around the frame in four directions to install and remove the metal mesh, reducing the operator's labor intensity.

[0015] Optionally, the rotating assembly includes a base, a rotating plate, a rotating shaft, connecting rods, and a driving component. The base is mounted on the lifting assembly, the rotating shaft is vertically rotatable on the base, the rotating plate is located at the top of the rotating shaft, and there are multiple connecting rods, each corresponding to one of the mounting plates. One end of each connecting rod is connected to a mounting plate, and the other end is connected to the rotating plate. The driving component is mounted on the base and connected to the rotating shaft, and is used to drive the rotating shaft to rotate.

[0016] By adopting the above technical solution, the four mounting plates are connected to the rotating plate through four connecting rods. The driving component drives the rotating shaft to rotate, which in turn drives the rotating plate to rotate, thereby achieving the effect of facilitating the rotation of multiple mounting plates.

[0017] Optionally, the bottom of the mounting plate is provided with a groove perpendicular to the length direction of the mounting plate, and the top of the multiple connecting rods is provided with a slide rail, which is adapted to the groove.

[0018] By adopting the above technical solution, since the mounting plate that is in contact with the axial moving beam will move with the movement of the axial moving beam, and the mounting plate that is in contact with the transverse moving beam will move with the movement of the transverse moving beam, the mounting plate is slidably mounted on the slide rail through the slide groove. After the mounting plate rotates and is installed in place, it does not affect the movement of the mounting plate driven by the transverse moving beam and the axial moving beam.

[0019] Optionally, a baffle is provided on the side of the slide rail facing the receiving space, the length direction of the baffle is parallel to the length direction of the mounting plate, and an electromagnet is embedded in the baffle.

[0020] By adopting the above technical solution, when the mounting plate is raised, lowered and rotated, the electromagnet is activated, and the electromagnet attracts the mounting plate, so that the mounting plate is always attracted and fixed on the baffle when the mounting plate is moved, which to a certain extent prevents the mounting plate from falling off the slide rail when the mounting plate is moved.

[0021] Optionally, the driving component includes a drive motor, a grooved wheel, and a turntable. The drive motor is mounted on the base, and its output shaft extends vertically upward. The grooved wheel is coaxially and fixedly connected to the rotating shaft. The turntable is coaxially mounted on the output shaft of the drive motor. The edge of the grooved wheel has four arc-shaped grooves that fit against the edge of the turntable. The turntable has teeth for moving the grooved wheel. The grooved wheel has slots for engaging with the teeth between two adjacent arc-shaped grooves.

[0022] By adopting the above technical solution, the drive motor drives the turntable to rotate. When the teeth on the turntable are outside the slots, the rotation of the turntable will not drive the grooved wheel to rotate. When the teeth on the turntable rotate into the slots, the rotation of the turntable drives the grooved wheel to rotate until the teeth disengage from the slots. Since the edge of the grooved wheel has four arc-shaped slots, when the turntable rotates one revolution, the grooved wheel rotates through a quarter of a circumference, and multiple mounting plates rotate through 90°. This achieves the effect of facilitating the rotation of multiple mounting plates. At the same time, it ensures that each rotation of the mounting plate through 90° results in multiple mounting plates being directly aligned with the frame, the transverse moving beam, and the axial moving beam, respectively, which facilitates the installation of the mounting plates on the frame, the transverse moving beam, and the axial moving beam.

[0023] Optionally, the lifting assembly includes a cylinder, which is mounted on the ground, and the piston rod of the cylinder extends vertically upward and is connected to the base.

[0024] By adopting the above technical solution, the piston rod of the cylinder extends or retracts, driving the base to move in the vertical direction, thereby achieving the effect of facilitating the movement of the base in the vertical direction.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. According to the requirements of the tensile strength test method of the mesh surface in the specification "Flexible Metal Mesh System for Slopes" (JT / T 1328-2020), metal mesh specimens with a width of not less than 1m and an area of ​​not less than 1㎡ are selected. The specimens are connected to the mounting plates around the accommodating space by fasteners. Since the mesh diameter is of various specifications and the width of different specimens is different, the transverse moving beam is driven by the adjustment component to move along the width direction of the frame, which can stretch the specimens of different widths to flatten them. Then, the circumferential moving beam is driven by the loading component to move along the length direction of the frame to conduct tensile tests on the metal mesh specimens. Thus, when testing metal mesh specimens with different mesh sizes, the metal mesh specimens can be laterally constrained and tightened, so that the metal mesh specimens remain in a natural flat state during the test, ensuring the accuracy of the test results.

[0027] 2. The movable plate is snapped onto the L-shaped plate. The lifting component drives multiple mounting plates to rise and detach from the L-shaped plate. The rotating component then drives the multiple mounting plates to rotate, thereby allowing the positions of the multiple mounting plates to be changed sequentially. When installing or removing the metal mesh sample on the mounting plate, the operator installs or removes the metal mesh from one side of the frame. The multiple mounting plates are driven to rotate sequentially to the operator's side, so that the operator can complete the installation and removal of the metal mesh sample from one side of the frame. This eliminates the need to move around the frame in four directions to install and remove the metal mesh, reducing the operator's labor intensity.

[0028] 3. The drive motor drives the turntable to rotate. When the teeth on the turntable are outside the slots, the rotation of the turntable will not drive the groove wheel to rotate. When the teeth on the turntable rotate into the slots, the rotation of the turntable drives the groove wheel to rotate until the teeth disengage from the slots. Since the edge of the groove wheel has four arc-shaped slots, when the turntable rotates one revolution, the groove wheel rotates through a quarter of a circumference, and multiple mounting plates rotate through 90°. This achieves the effect of facilitating the rotation of multiple mounting plates. At the same time, each rotation of the mounting plates through 90° ensures that after each rotation, multiple mounting plates are respectively aligned with the frame, the transverse moving beam, and the axial moving beam, which facilitates the installation of the mounting plates on the frame, the transverse moving beam, and the axial moving beam. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0030] Figure 2 This is a schematic diagram illustrating the structure of the lifting assembly and the rotating assembly in the embodiments of this application.

[0031] Figure 3 yes Figure 2 Enlarged view of section A.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Frame; 11. Hydraulic cylinder; 12. Lead screw; 13. Handwheel; 2. Lateral moving beam; 3. Axial moving beam; 4. Mounting plate; 41. Fastener; 42. Through hole; 43. Slide groove; 51. Base; 52. Rotating plate; 53. Rotating shaft; 54. Connecting rod; 541. Slide rail; 542. Baffle; 55. Driving component; 551. Drive motor; 552. Grooved wheel; 5521. Arc groove; 5522. Pulley; 553. Turntable; 5531. Pulley rod; 5532. Pulley tooth; 61. Cylinder; 7. L-shaped plate. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0035] This application discloses a metal mesh tensile strength testing machine, referring to... Figure 1 A metal mesh tensile strength testing machine includes a frame 1, which is a rectangular frame. Support legs are installed at the four corners of the bottom of the frame 1. A transverse moving beam 2 is installed inside the frame 1 along its length, with both ends slidably connected to the short sides of the frame 1. An axial moving beam 3 is installed inside the frame 1 along its width, with one end slidably connected to the frame 1 and the other end abutting against the transverse moving beam 2. The transverse moving beam 2, the axial moving beam 3, and the frame 1 form a rectangular receiving space for accommodating the metal mesh sample. A loading assembly is installed on the frame 1, connected to the axial moving beam 3 and used to drive the axial moving beam 3 to move along the length of the frame 1. An adjusting assembly is installed on the frame 1, used to drive the transverse moving beam 2 to move along the width of the frame 1. Mounting plates 4 are installed on the axial moving beam 3, the transverse moving beam 2, and the frame 1, and around the perimeter of the accommodating space. The four mounting plates 4 are arranged in a rectangular shape, and each mounting plate 4 is equipped with multiple fasteners 41 for connecting the metal mesh. Each fastener 41 consists of two opposing waist-shaped plates, with pins passing through both ends of the waist-shaped plates. The two waist-shaped plates are fixedly connected by the pins. One end of the fastener 41 is connected to the mounting plate 4, and the other end extends towards the accommodating space.

[0036] According to the requirements of Appendix D of the People's Republic of China Transportation Industry Standard "Flexible Metal Mesh System for Slopes" (JT / T 1328-2020), specifically the test method for tensile strength of the mesh surface, a metal mesh specimen with a width of not less than 1m and an area of ​​not less than 1㎡ is selected. The metal mesh specimen is installed in the receiving space on the frame 1. The four sides of the metal mesh specimen are connected to fasteners 41 on the mounting plates 4 around the receiving space. Depending on the mesh size of the metal mesh specimen, fasteners 41 with appropriate spacing are selected to connect the metal mesh, ensuring it is in a naturally flat state. The axial moving beam 3 is moved along the width direction of the frame 1 by the loading component to perform a tensile test on the metal mesh specimen. Because the mesh diameter of the metal mesh specimen varies, processing the metal mesh into specimens that meet the specifications will result in differences in the width of the metal mesh with different mesh diameters. At this time, the transverse moving beam 2 is driven by the adjustment component to move along the width direction of the frame 1, and the metal mesh samples of different widths are laterally tightened and constrained, so that the different samples can be in a natural flat state during the test. The metal mesh samples are subjected to uniform force during the test, which improves the accuracy of the test results.

[0037] Reference Figure 1 The loading assembly includes a hydraulic cylinder 11, which is mounted on the short side of the frame 1 near the axial moving beam 3. The piston rod of the hydraulic cylinder 11 extends along the length of the frame 1 toward the axial moving beam 3, and the end of the piston rod is connected to the axial moving beam 3. The adjusting assembly includes a lead screw 12 and a handwheel 13. The lead screw 12 is threaded through the long side of the frame 1 near the transverse moving beam 2. Two lead screws 12 are mounted parallel to each other on the frame 1, both extending toward the transverse moving beam 2. One end of the lead screw 12 is engaged with the transverse moving beam 2, allowing the lead screw 12 to rotate relative to the transverse moving beam 2 without disengaging from it. The handwheel 13 is coaxially fixed to the end of the lead screw 12 facing away from the frame 1.

[0038] When performing a tensile test on a metal mesh sample, the hydraulic cylinder 11 is activated, and the piston rod of the hydraulic cylinder 11 retracts, driving the axial moving beam 3 to move along the length direction of the frame 1, thereby stretching the metal mesh sample. When metal mesh samples of different widths are installed on four mounting plates 4, the handwheel 13 is turned, and the handwheel 13 drives the lead screw 12 to rotate, thereby driving the transverse moving beam 2 to move along the width direction of the frame 1, thereby laterally tightening the metal meshes of different widths, so that the metal mesh sample is always in a natural and flat state during the test.

[0039] Reference Figure 1 and Figure 2Each of the four mounting plates 4 has two vertically formed through holes 42. Two L-shaped plates 7 are installed on the side of the frame 1, the axial moving beam 3, and the transverse moving beam 2 facing the receiving space. The L-shaped plates 7 are adapted to the through holes 42 on the mounting plates 4. The four mounting plates 4 are respectively snapped onto the frame 1, the axial moving beam 3, and the transverse moving beam 2 via the L-shaped plates 7. The metal mesh tensile strength testing machine also includes a lifting assembly and a rotating assembly. The rotating assembly is connected to all four mounting plates 4 and is used to drive the four mounting plates 4 to rotate. The lifting assembly is connected to the rotating assembly and is used to drive the rotating assembly and the four mounting plates 4 connected to the rotating assembly to move vertically.

[0040] Reference Figure 2 The rotating assembly includes a base 51, a rotating plate 52, a rotating shaft 53, connecting rods 54, and a driving component 55. The base 51 is mounted on the lifting assembly. The rotating shaft 53 is vertically rotatably mounted on the base 51. The rotating plate 52 is horizontally fixedly mounted on the top of the rotating shaft 53. Four connecting rods 54 are mounted on the rotating plate 52, each with one end fixedly connected to the rotating plate 52 and the other end connected to the mounting plate 4. The driving component 55 is mounted on the base 51 and is connected to the rotating shaft 53 to drive the rotating shaft 53 to rotate. The lifting assembly includes cylinders 61. Multiple cylinders 61 are mounted below the base 51. The cylinder body of the cylinder 61 is placed on the ground, and the piston rod of the cylinder 61 extends vertically upward and is fixedly connected to the lower plate surface of the base 51.

[0041] When cylinder 61 is activated, its piston rod extends, driving the four mounting plates 4 to move vertically upwards and disengage from the L-shaped plate 7. Then, the driving component 55 drives the rotating shaft 53 to rotate, thereby driving the four mounting plates 4 to rotate as well. The piston rod of cylinder 61 retracts, lowering the mounting plates 4 until they engage with the L-shaped plate 7. Driving the four mounting plates 4 to rotate facilitates the installation or removal of the metal mesh sample between or from the mounting plates 4. When installing the metal mesh specimen, the operator connects one side of the metal mesh specimen to the mounting plate 4 from one side of the frame 1. After one side of the metal mesh specimen is installed, the other mounting plates 4 without metal mesh specimens are rotated to face the operator, and the metal mesh specimens are then installed sequentially on the four mounting plates 4. This eliminates the need for the operator to walk around the frame 1 to install the metal mesh onto the four mounting plates 4 one by one; the operator can complete the installation of the metal mesh from one side of the frame 1. The principle is the same when removing the metal mesh specimen after the test. This reduces the operator's workload, facilitates the installation or removal of the metal mesh specimen, and shortens the test time. At the same time, by rotating the mounting plates 4, the axially moving beam 3 can be connected to different mounting plates 4, allowing tensile tests to be performed on the metal mesh specimens connected between the four mounting plates 4 in both the transverse and longitudinal directions.

[0042] Reference Figure 2 Each of the four mounting plates 4 has a groove 43 at its bottom, the groove 43 being perpendicular to the length of the mounting plate 4. Each of the four connecting rods 54 has a slide rail 541 at its top. Both the slide rail 541 and the groove 43 have a T-shaped cross-section. The mounting plate 4 slides along the slide rail 541 via the groove 43. A baffle 542 is horizontally fixed on the side of the slide rail 541 facing the receiving space, the length of the baffle 542 being parallel to the length of the corresponding mounting plate 4. An electromagnet is embedded in the baffle 542. The mounting plate 4 is made of magnetically conductive metal.

[0043] When the four mounting plates 4 are driven to rise, fall, or rotate, the connecting rod 54 moves the slide rail 541, which in turn moves the mounting plates 4 on the slide rail 541. When the mounting plates 4 move, the electromagnet is activated, attracting the mounting plates 4 so that they remain attached to the baffle 542, preventing them from falling off the slide rail 541 when the mounting plates 4 are moved. Simultaneously, when the four mounting plates 4 are respectively engaged with the L-shaped plates 7 on the frame 1, the axial moving beam 3, and the transverse moving beam 2, the corresponding mounting plates 4 slide along the slide rail 541 when the transverse moving beam 2 and the axial moving beam 3 move, without affecting the movement of the mounting plates 4. It is particularly important to note that when the four mounting plates 4 are driven to rise, fall, or rotate, the transverse moving beam 2 and the axial moving beam 3 are in their initial positions, i.e., the four mounting plates 4 are arranged in a square.

[0044] Reference Figure 2 and Figure 3 The driving component 55 includes a drive motor 551, a grooved wheel 552, and a turntable 553. The drive motor 551 is mounted on the base 51, and its output shaft extends vertically upward. The grooved wheel 552 is coaxially fixedly mounted on the rotating shaft 53, and the turntable 553 is coaxially fixedly mounted on the output shaft of the drive motor 551. The turntable 553 and the grooved wheel 552 are located on the same horizontal plane. Four arc-shaped grooves 5521 that fit against the edge of the turntable 553 are equally spaced on the edge of the grooved wheel 552. A lever 5531 is mounted on the turntable 553 along one of its radial directions. A lever tooth 5532 is vertically fixedly connected to the end of the lever 5531. A groove 5522 is formed on the grooved wheel 552 between two adjacent arc-shaped grooves 5521, and the lever tooth 5532 engages with the groove 5522.

[0045] When the drive motor 551 is started, it drives the turntable 553 to rotate. When the tooth 5532 is outside the groove 5522, the rotation of the turntable 553 will not drive the groove wheel 552 to rotate. When the tooth 5532 rotates into the groove 5522, the rotation of the turntable 553 drives the groove wheel 552 to rotate until the tooth 5532 rotates out of the groove wheel 552, thereby driving the rotating shaft 53 to rotate. At the same time, since there are four arc-shaped grooves 5521 evenly spaced on the groove wheel 552, when the turntable 553 rotates one revolution, the groove wheel 552 rotates one-quarter revolution, and the four mounting plates 4 rotate 90° around the rotating shaft 53. Since the four mounting plates 4 are arranged in a square, after the four mounting plates 4 rotate 90°, they still correspond to the multiple L-shaped plates 7 on the frame 1. After each rotation of the mounting plate 4, it directly drives the four mounting plates 4 to descend, and the four mounting plates 4 can then be snapped onto the L-shaped plate without the need for additional alignment of the mounting plates 4, making operation convenient.

[0046] The implementation principle of a metal mesh tensile strength testing machine according to an embodiment of this application is as follows: The metal mesh is processed into a rectangular mesh surface that meets the specifications. The operator installs the metal mesh sample on the mounting plate 4 on one side of the frame 1. The drive motor 551 drives the four mounting plates 4 to rotate sequentially until they are facing the operator. The operator installs the edges of the metal mesh sample on the four mounting plates 4 sequentially, and then lowers the mounting plates 4 until they are engaged with the L-shaped plate 7. The handwheel 13 is turned to drive the transverse moving beam 2 to move along the width direction of the frame 1, stretching and tightening the side of the metal mesh sample so that the metal mesh sample is always in a natural and flat state during the test. The hydraulic cylinder 11 is started, and the hydraulic cylinder 11 drives the axial moving beam 3 to move along the length direction of the frame 1 to perform a tensile test on the metal mesh sample.

[0047] Finally, it should be noted that in the description of this application, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metal mesh tensile strength testing machine, characterized in that: The device includes a frame (1), which is a rectangular frame. A transverse moving beam (2) is arranged along the length of the frame (1), and an axial moving beam (3) is arranged along the width of the frame (1). The transverse moving beam (2) slides along the width of the frame (1), and the axial moving beam (3) slides along the length of the frame (1). The axial moving beam (3), the transverse moving beam (2), and the frame (1) form a rectangular accommodating space for accommodating the metal mesh. A loading assembly is provided on the frame (1) to drive the axial moving beam (3) to move along the length of the frame (1). An adjustment assembly is also provided on the frame (1) to drive the transverse moving beam (2) to move along the width of the frame (1). Mounting plates (4) are provided on the axial moving beam (3), the transverse moving beam (2), and the frame (1) and around the accommodating space. Multiple fasteners (41) for connecting the metal mesh are provided on the mounting plates (4). The mounting plates (4) also include a rotating assembly and a lifting assembly. Multiple mounting plates (4) are vertically provided with through holes (42). An L-shaped plate (7) is provided on the side of the frame (1), the axial moving beam (3), and the transverse moving beam (2) that is in contact with the mounting plates (4). The vertical section of the L-shaped plate (7) is inserted into the through hole (42) on the mounting plate (4). The rotating assembly is connected to multiple mounting plates (4) and is used to drive the multiple mounting plates (4) to rotate. The lifting assembly is connected to the rotating assembly and is used to drive the rotating assembly and the mounting plates (4) to move in the vertical direction.

2. The metal mesh tensile strength testing machine according to claim 1, characterized in that: The loading assembly includes a hydraulic cylinder (11) mounted on a frame (1). The piston rod of the hydraulic cylinder (11) extends along the length of the frame (1) and is connected to an axially moving beam (3).

3. The metal mesh tensile strength testing machine according to claim 1, characterized in that: The adjustment assembly includes a lead screw (12) and a handwheel (13). The lead screw (12) is threaded onto the frame (1). The lead screw (12) is rotatably connected to the transverse moving beam (2), and the end of the lead screw (12) is engaged in the transverse moving beam (2). The handwheel (13) is located at one end of the lead screw (12) away from the transverse moving beam (2).

4. The metal mesh tensile strength testing machine according to claim 1, characterized in that: The rotating assembly includes a base (51), a rotating plate (52), a rotating shaft (53), a connecting rod (54), and a driving component (55). The base (51) is mounted on the lifting assembly. The rotating shaft (53) is vertically rotatably mounted on the base (51). The rotating plate (52) is mounted on the top of the rotating shaft (53). There are multiple connecting rods (54), each corresponding to a mounting plate (4). One end of each connecting rod (54) is connected to a mounting plate (4), and the other end is connected to the rotating plate (52). The driving component (55) is mounted on the base (51) and connected to the rotating shaft (53). The driving component (55) is used to drive the rotating shaft (53) to rotate.

5. A metal mesh tensile strength testing machine according to claim 4, characterized in that: The bottom of the mounting plate (4) is provided with a groove (43) perpendicular to the length direction of the mounting plate (4), and the top of the multiple connecting rods (54) is provided with a slide rail (541), which is adapted to the groove (43).

6. A metal mesh tensile strength testing machine according to claim 5, characterized in that: The slide rail (541) is provided with a baffle (542) on the side facing the accommodating space. The length direction of the baffle (542) is parallel to the length direction of the mounting plate (4), and an electromagnet is embedded in the baffle (542).

7. A metal mesh tensile strength testing machine according to claim 4, characterized in that: The driving component (55) includes a drive motor (551), a grooved wheel (552), and a turntable (553). The drive motor (551) is mounted on the base (51). The output shaft of the drive motor (551) extends vertically upward. The grooved wheel (552) is coaxially fixedly connected to the rotating shaft (53). The turntable (553) is coaxially mounted on the output shaft of the drive motor (551). The edge of the grooved wheel (552) is provided with four arc-shaped grooves (5521) that fit against the edge of the turntable (553). The turntable (553) is provided with teeth (5532) for moving the grooved wheel (552). The grooved wheel (552) is provided with grooves (5522) for engaging with the teeth (5532) between two adjacent arc-shaped grooves (5521).

8. A metal mesh tensile strength testing machine according to claim 5, characterized in that: The lifting assembly includes a cylinder (61) which is mounted on the ground. The piston rod of the cylinder (61) extends vertically upward and is connected to the base (51).

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