Fracture resistance experiment detection device

Abstract

The utility model relates to an anti-bending experiment detection device, and belongs to the technical field of anti-bending experiment detection devices. Comprising a rectangular bin, four supporting columns fixed to the top face of the rectangular bin, a top plate fixed to the top ends of the four supporting columns, a hydraulic telescopic rod fixed to the top face of the top plate, a detection piece fixed to the bottom end of an output shaft of the hydraulic telescopic rod and a supporting mechanism arranged on the rectangular bin. The supporting mechanism comprises a supporting table fixed to the top face of the rectangular bin, two adjusting blocks slidably connected to the top face of the rectangular bin, an adjusting assembly arranged in the rectangular bin, springs fixed to the top faces of the adjusting blocks, a lower clamping plate fixed to the top faces of the springs, and a guide rod vertically penetrating through the lower clamping plate and slidably connected with the lower clamping plate. And the upper clamping plate is fixed at the top end of the guide rod. According to the anti-bending experiment detection device, the upper clamping plate is matched with the lower clamping plate to clamp the end part of a material, so that anti-bending detection is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of flexural test detection devices, and specifically provides a flexural test detection device. Background Technique

[0002] In the test of material mechanical properties, the flexural test is an important means to evaluate the material properties. When conducting a flexural test, a flexural test detection device is required. The flexural test detection device generally consists of a pressure loading structure, a measurement structure, and a support structure. By measuring the deformation and failure of the material during the force application process through the measurement structure, its flexural performance is evaluated.

[0003] For example, Chinese Patent (Publication No.: CN218885657U) discloses a flexural strength detection device. There is a detection cavity inside the detection platform and the top is open. An installation cavity is formed between the outer wall of the detection cavity and the inner wall of the detection platform; the flexural support part is arranged on the inner bottom wall of the detection cavity, and the flexural extrusion part is arranged above the opening of the detection cavity. When the sand mold test block is placed on the flexural support part, the flexural extrusion part can extend into the detection cavity to extrude the middle part of the sand mold test block; the air extraction unit is arranged in the installation cavity, and the air inlet end of the air extraction unit is connected to the detection cavity through a pipeline. By extracting air from the detection cavity by the air extraction unit, the debris generated when the sand mold test block is broken by the flexural extrusion part can be sucked into the installation cavity, solving the problems that when the existing sand mold test block is squeezed and broken, the debris is easy to pop out and cause injury to the experimental personnel, and it takes a certain amount of time to clean the debris on the detection platform.

[0004] However, the above-mentioned retrieved patent still has some deficiencies. When in use, it is not convenient to fix the tested material, resulting in that the detection device is not convenient to test some cylindrical materials, reducing the practicability of the device and causing certain inconvenience in use. Therefore, a flexural test detection device is proposed to solve the above problems. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, this application provides a flexural test detection device, which has the advantages of being convenient for clamping plates and rods for testing and good practicability, and solves the problem that the detection device disclosed in the above-mentioned retrieved patent is not convenient for clamping rods for testing.

[0006] To achieve the above object, this application provides the following technical solution: A flexural test detection device includes a rectangular bin, four support columns fixed on the top surface of the rectangular bin, a top plate fixed on the tops of the four support columns, a hydraulic telescopic rod fixed on the top surface of the top plate, a detection piece fixed at the bottom end of the output shaft of the hydraulic telescopic rod, and a support mechanism arranged on the rectangular bin;

[0007] The supporting mechanism includes a supporting platform fixed on the top surface of the rectangular warehouse, two supporting bars fixed on the top surface of the supporting platform, two adjusting blocks slidably connected to the top surface of the rectangular warehouse, an adjusting component arranged inside the rectangular warehouse, a spring fixed on the top surface of the adjusting block, a lower clamping plate fixed on the top surface of the spring, a guide rod vertically penetrating the lower clamping plate and slidably connected thereto, an upper clamping plate fixed on the top end of the guide rod, and a screw rotatably connected to the top surface of the upper clamping plate and threadedly connected to the lower clamping plate, and a clamping groove is provided on the bottom surface of the upper clamping plate and the top surface of the lower clamping plate.

[0008] By adopting the above technical solution, when in use, the material to be tested is placed on the support table provided by the support mechanism, and then the ends of the material can be clamped by the upper clamping plate and the lower clamping plate, thereby facilitating the anti-bending test. Clamping grooves are provided on the opposite sides of the upper clamping plate and the lower clamping plate, so that the device can clamp both rod-shaped materials and plate materials, further improving the practicality of the device.

[0009] Furthermore, the adjustment assembly includes an adjustment rod rotatably connected to the front side of the rectangular bin, two screw rods rotatably connected to the inner walls on the left and right sides of the rectangular bin and respectively threadedly connected to two adjustment blocks, an active bevel gear fixed to the rear end of the adjustment rod, a driven bevel gear fixed to the opposite ends of the two screw rods and meshing with the active bevel gear, and a guide block fixed to the bottom surface of the adjustment block, two guide grooves for sliding connection of the guide block are provided on the inner bottom wall of the rectangular bin, and two sliding holes for the adjustment block to pass through and be slidably connected thereto are provided on the top surface of the rectangular bin.

[0010] By adopting the above technical solution, the upper splint and the lower splint are arranged on the spring, which can adapt to the warping of the two ends of the material when it bends, thereby preventing the material from causing damage to the upper splint and the lower splint. In addition, the two sets of upper splints and lower splints can be adjusted by sliding left and right through the screw rod and guide block set in the adjustment component to adapt to materials of different lengths, thereby further improving the practicality of the device.

[0011] Furthermore, the four support columns are respectively close to the four corners of the top surface of the rectangular warehouse, the hydraulic telescopic rod vertically penetrates the top plate and extends to its bottom, and the detection member is arranged at the bottom of the top plate.

[0012] By adopting the above technical solution, such a structure makes it easy for the hydraulic telescopic rod to drive the detection piece to move up and down and then contact the material to perform anti-bending detection.

[0013] Furthermore, the support platform and the detection member are opposed to each other up and down, the two support bars are distributed left and right, and the support platform is located between the two adjustment blocks.

[0014] By adopting the above technical solution, it is convenient to support the material by means of the two support bars, thereby making it convenient for the detection piece to apply downward pressure for detection.

[0015] Further, the guide rod and the screw rod are opposite to each other front and back and are respectively located on the front and back sides of the clamping groove. A guide hole for the guide rod to penetrate and slidably connect therewith is provided on the top surface of the lower clamping plate, and a limiting plate is fixed to the bottom end of the guide rod.

[0016] Adopting the above technical solution, it is convenient to make the upper clamping plate slide up and down stably through the arranged guide rod for clamping, and at the same time, the arranged limiting plate plays a limiting role to prevent the upper clamping plate from falling off due to excessive movement.

[0017] Further, a threaded hole for the screw rod to be threadedly connected is provided on the top surface of the lower clamping plate, and an anti-slip handle is fixed to the top end of the screw rod.

[0018] Adopting the above technical solution, it is convenient to rotate the screw rod through the arranged anti-slip handle, and then drive the upper clamping plate to move up and down to complete the clamping operation of the material.

[0019] Further, the rear end of the adjusting rod extends into the rectangular bin, a runner is fixed to the front end of the adjusting rod, and the spiral directions of the two lead screws are the same.

[0020] Adopting the above technical solution, it is convenient to rotate the adjusting rod through the arranged runner, and then drive the adjusting assembly through the adjusting rod to drive the two adjusting blocks to move relatively or away from each other to adjust the length of the material.

[0021] Further, a support plate with one end fixed to the inner wall of the rectangular bin is rotatably connected to the outer peripheral wall of the lead screw, and the back surface of the driving bevel gear meshes with the front surfaces of the two driven bevel gears and the three are in a U shape.

[0022] Adopting the above technical solution, it is convenient to drive the two driven bevel gears to rotate synchronously and in opposite directions through the arranged driving bevel gear, and then drive the two lead screws to rotate synchronously and in opposite directions to achieve the effect of synchronously adjusting the two adjusting blocks.

[0023] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0024] 1. When the flexural test detection device is in use, the material to be detected is placed on the support table arranged by the support mechanism, and then the end of the material can be clamped by the arranged upper clamping plate in cooperation with the lower clamping plate, so as to facilitate the flexural test. Clamping grooves are provided on the opposite sides of the upper clamping plate and the lower clamping plate, so that the device can clamp both rod-shaped materials and plate materials, further improving the practicability of the device.

[0025] 2. The upper and lower clamps of the bending test detection device are arranged on springs, which can adapt to the warping of both ends of the material when it is bent, so as to avoid damage to the upper and lower clamps by the material. In addition, the two sets of upper and lower clamps can be adjusted by sliding left and right through the screw rod and guide block provided in the adjustment component to adapt to materials of different lengths, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view schematic diagram of the present application;

[0027] Figure 2 A three-dimensional schematic diagram of the splint in this application;

[0028] Figure 3 This is a schematic front cross-sectional view of the rectangular warehouse of this application.

[0029] In the figure: 1. rectangular bin; 2. support column; 3. top plate; 4. hydraulic telescopic rod; 5. detection part; 601. support table; 602. support bar; 603. adjustment block; 604. spring; 605. lower clamping plate; 606. guide rod; 607. upper clamping plate; 608. screw; 609. clamping groove; 610. limit plate; 701. adjustment rod; 702. screw; 703. active bevel gear; 704. driven bevel gear; 705. guide block; 706. guide groove; 707. sliding hole; 708. support plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0031] See also Figure 1 In this embodiment, a bending test detection device includes a rectangular warehouse 1, four support columns 2 fixed on the top surface of the rectangular warehouse 1, a top plate 3 fixed on the top of the four support columns 2, a hydraulic telescopic rod 4 fixed on the top surface of the top plate 3, a detection member 5 fixed at the bottom end of the output shaft of the hydraulic telescopic rod 4, and a support mechanism arranged on the rectangular warehouse 1. The four support columns 2 are respectively close to the four corners of the top surface of the rectangular warehouse 1, the hydraulic telescopic rod 4 vertically penetrates the top plate 3 and extends to its bottom, and the detection member 5 is arranged at the bottom of the top plate 3. When in use, the material to be tested is placed on the top of the rectangular warehouse 1, and the patriotic plate or rod material can be clamped and supported by the set support mechanism. Further, the hydraulic telescopic rod 4 is controlled to drive the detection member 5 to move downward, and the detection member 5 abuts against the material and applies pressure downward, thereby causing the material to bend for bending resistance detection.

[0032] It should be noted that a pressure sensing structure is provided on the detection member 5, which can monitor the detection pressure in real time. This belongs to the existing public technology. Therefore, the detection part of the pressure will not be elaborated in detail in this text. In addition, the control method of this application is controlled by a controller. The control circuit of the controller can be realized by simple programming of those skilled in the art. The provision of the power supply also belongs to the common knowledge in this field. And this application is mainly used to protect the mechanical device. Therefore, the control method and circuit connection will not be explained in detail in this application.

[0033] Please refer to Figure 1 to Figure 2 , the support mechanism includes a support platform 601 fixed on the top surface of the rectangular bin 1, two support bars 602 fixed on the top surface of the support platform 601, two adjustment blocks 603 slidably connected to the top surface of the rectangular bin 1, an adjustment assembly arranged inside the rectangular bin 1, a spring 604 fixed on the top surface of the adjustment block 603, a lower clamping plate 605 fixed on the top surface of the spring 604, a guide rod 606 vertically penetrating and slidably connected to the lower clamping plate 605, an upper clamping plate 607 fixed on the top end of the guide rod 606, and a screw rod 608 rotatably connected to the top surface of the upper clamping plate 607 and threadedly connected to the lower clamping plate 605. Clamping grooves 609 are formed on the bottom surface of the upper clamping plate 607 and the top surface of the lower clamping plate 605. When in use, both ends of the material are respectively inserted between the two groups of upper clamping plates 607 and lower clamping plates 605, and then the screw rod 608 is rotated. The screw rod 608 drives the upper clamping plate 607 to move downward in cooperation with the guide rod 606, and then cooperates with the lower clamping plate 605 to clamp both ends of the material, which can effectively prevent the rod-shaped material from rolling during detection and further control the hydraulic expansion rod 4 to drive the detection member 5 to move downward. The detection member 5 abuts against the material and applies a downward pressure, so that the bottom surface of the material contacts the two support bars 602, and the material is supported by the two support bars 602. Then the detection member 5 presses down to complete the flexural strength test. During the test, both sides of the material will tilt upward. The provided spring 604 can adapt to this deformation, thereby preventing the material from damaging the upper clamping plate 607 and the lower clamping plate 605.

[0034] In this embodiment, the support platform 601 and the detection member 5 are vertically opposite to each other, the two support bars 602 are distributed left and right, and the support platform 601 is located between the two adjustment blocks 603. Such a structure facilitates supporting the material by the two support bars 602 provided, and further facilitates the detection member 5 to apply downward pressure for detection. The guide rod 606 and the screw rod 608 are vertically opposite to each other and are respectively located on the front and rear sides of the clamping groove 609. The top surface of the lower clamping plate 605 is provided with a guide hole through which the guide rod 606 passes and is slidably connected thereto. The bottom end of the guide rod 606 is fixed with a limiting plate 610. The guide rod 606 provided enables the upper clamping plate 607 to slide up and down stably for clamping. At the same time, the limiting plate 610 provided plays a limiting role to prevent the upper clamping plate 607 from falling off due to excessive movement. The top surface of the lower clamping plate 605 is provided with a threaded hole for threaded connection with the screw rod 608, and the top end of the screw rod 608 is fixed with an anti-slip handle.

[0035] Please refer to Figure 3 , in this embodiment, the adjustment assembly includes an adjustment rod 701 rotatably connected to the front surface of the rectangular bin 1, two lead screws 702 rotatably connected to the inner walls of the left and right sides of the rectangular bin 1 and respectively threadedly connected to the two adjustment blocks 603, a driving bevel gear 703 fixed to the rear end of the adjustment rod 701, and a driven bevel gear 704 fixed to the opposite ends of the two lead screws 702 and meshing with the driving bevel gear 703. The rear end of the adjustment rod 701 extends into the rectangular bin 1. The front end of the adjustment rod 701 is fixed with a rotating wheel. The spiral directions of the two lead screws 702 are the same. A support plate 708 with one end fixed to the inner wall of the rectangular bin 1 is rotatably connected to the outer peripheral wall of the lead screw 702. The back surface of the driving bevel gear 703 meshes with the front surfaces of the two driven bevel gear 704 and the three are in a U shape. When detecting materials of different lengths, rotate the adjustment rod 701. The adjustment rod 701 drives the driving bevel gear 703 to rotate. The driving bevel gear 703 drives the two driven bevel gears 704 to rotate synchronously and in opposite directions. The adjustment assembly further includes a guide block 705 fixed to the bottom surface of the adjustment block 603. The inner bottom wall of the rectangular bin 1 is provided with two guide grooves 706 for slidably connecting the guide block 705. The top surface of the rectangular bin 1 is provided with two sliding holes 707 through which the adjustment block 603 passes and is slidably connected thereto. Further, the two driven bevel gears 704 drive the two lead screws 702 to rotate synchronously and in opposite directions, and then cooperate with the guide block 705 and the guide grooves 706 to drive the two adjustment blocks 603 to move relatively or away from each other inside the sliding holes 707, thereby driving the upper clamping plates 607 and the lower clamping plates 605 on the left and right sides to approach or move away from each other to adapt to materials of different lengths for detection.

[0036] The working principle of the above embodiment is as follows:

[0037] (1) When in use, insert the two ends of the material between the two sets of upper clamping plates 607 and the lower clamping plates 605 respectively, and then rotate the screw rod 608. The screw rod 608 cooperates with the guide rod 606 to drive the upper clamping plate 607 to move downward, and then cooperates with the lower clamping plate 605 to clamp the two ends of the material. The hydraulic telescopic rod 4 is further controlled to drive the detection member 5 to move downward. The detection member 5 abuts against the material and applies downward pressure, so that the bottom surface of the material contacts the two support bars 602. The material is supported by the two support bars 602, and then the detection member 5 is pressed down to complete the anti-bending test. During the test, the two sides of the material will warp upward. The spring 604 can adapt to this deformation, thereby preventing the material from damaging the upper clamping plate 607 and the lower clamping plate 605;

[0038] (2) When testing materials of different lengths, the adjusting rod 701 is rotated, and the adjusting rod 701 drives the active bevel gear 703 to rotate, and the active bevel gear 703 drives the two driven bevel gears 704 to rotate synchronously in opposite directions. Further, the two driven bevel gears 704 drive the two screw rods 702 to rotate synchronously in opposite directions, and then cooperate with the guide block 705 and the guide groove 706 to drive the two adjusting blocks 603 to move relative to or away from each other inside the sliding hole 707, and then drive the upper clamping plate 607 and the lower clamping plate 605 on the left and right sides to move closer to or farther away from each other, so as to adapt to the testing of materials of different lengths.

Claims

1. An anti-flexure experiment detection device, characterized in that: It includes a rectangular bin (1), four support columns (2) fixed on the top surface of the rectangular bin (1), a top plate (3) fixed at the tops of the four support columns (2), a hydraulic telescopic rod (4) fixed on the top surface of the top plate (3), a detection piece (5) fixed at the bottom end of the output shaft of the hydraulic telescopic rod (4), and a support mechanism arranged on the rectangular bin (1). The support mechanism includes a support platform (601) fixed on the top surface of the rectangular bin (1), two support bars (602) fixed on the top surface of the support platform (601), two adjusting blocks (603) slidably connected to the top surface of the rectangular bin (1), an adjusting assembly arranged inside the rectangular bin (1), a spring (604) fixed on the top surface of the adjusting block (603), a lower clamping plate (605) fixed on the top surface of the spring (604), a guide rod (606) vertically penetrating and slidably connected to the lower clamping plate (605), an upper clamping plate (607) fixed at the top end of the guide rod (606), and a screw rod (608) rotatably connected to the top surface of the upper clamping plate (607) and threadedly connected to the lower clamping plate (605). Clamping grooves (609) are formed on the bottom surface of the upper clamping plate (607) and the top surface of the lower clamping plate (605).

2. The flexural test detection device according to claim 1, characterized in that: The adjusting assembly includes an adjusting rod (701) rotatably connected to the front surface of the rectangular bin (1), two lead screws (702) rotatably connected to the inner walls on the left and right sides of the rectangular bin (1) and respectively threadedly connected to the two adjusting blocks (603), a driving bevel gear (703) fixed at the rear end of the adjusting rod (701), a driven bevel gear (704) fixed at the opposite ends of the two lead screws (702) and meshing with the driving bevel gear (703), and a guide block (705) fixed on the bottom surface of the adjusting block (603). Two guide grooves (706) for the guide block (705) to slidably connect are formed on the inner bottom wall of the rectangular bin (1), and two sliding holes (707) for the adjusting block (603) to penetrate and slidably connect are formed on the top surface of the rectangular bin (1).

3. The flexural test detection device according to claim 1, characterized in that: The four support columns (2) are respectively close to the four corners of the top surface of the rectangular bin (1). The hydraulic telescopic rod (4) vertically penetrates the top plate (3) and extends to its bottom, and the detection piece (5) is arranged at the bottom of the top plate (3).

4. The flexural test detection device according to claim 1, characterized in that: The support platform (601) and the detection piece (5) are vertically opposite. The two support bars (602) are distributed left and right, and the support platform (601) is located between the two adjusting blocks (603).

5. The flexural test detection device according to claim 1, characterized in that: The guide rod (606) and the screw rod (608) are vertically opposite and are respectively located on the front and rear sides of the clamping groove (609). A guide hole for the guide rod (606) to penetrate and slidably connect is formed on the top surface of the lower clamping plate (605), and a limiting plate (610) is fixed at the bottom end of the guide rod (606).

6. The flexural test detection device according to claim 1, wherein: A threaded hole for the screw rod (608) to threadedly connect is formed on the top surface of the lower clamping plate (605), and an anti-slip handle is fixed at the top end of the screw rod (608).

7. The flexural test detection device according to claim 2, wherein: The rear end of the adjusting rod (701) extends into the rectangular bin (1), a runner is fixed to the front end of the adjusting rod (701), and the spiral directions of the two lead screws (702) are the same.

8. The flexural test detection device according to claim 2, wherein: A support plate (708) whose one end is fixed to the inner wall of the rectangular bin (1) is rotatably connected to the outer peripheral wall of the lead screw (702), the back surface of the driving bevel gear (703) meshes with the front surfaces of the two driven bevel gears (704), and the three are in a U shape.

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