Concrete impact testing machine

Abstract

The utility model relates to the technical field of impact testing machines, in particular to a concrete impact testing machine which comprises a support, a sample anvil block and a rack are fixed at the top of the support, a supporting frame is fixed at the top end of the back surface of the rack, a motor is mounted in the supporting frame, an output end of the motor penetrates to the front surface of the rack and is fixedly provided with a swing arm, and the swing arm is connected with the support. A pendulum bob is fixed to one end of the swing arm, a base is fixed to the bottom of the support, a vibration reduction mechanism and a water storage bin are arranged in the base, vibration generated when the testing machine works can be transmitted to a vibration reduction plate through a transmission rod, part of vibration is reduced through the vibration reduction plate, and the vibration reduction plate can descend after being vibrated and compress a first vibration reduction spring; and then the connecting rod rotates to drive the push plate to move, the push plate presses the second damping spring when moving, vibration is further reduced through the first damping spring and the second damping spring, and then the damper is matched with the first damping spring and the second damping spring for use to further improve the damping effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to impact testing machine technical field especially relates to a concrete impact testing machine. BACKGROUND

[0002] Impact testing machine refers to the material testing machine that is used to apply impact test force to the sample and conduct impact test, and the impact testing machine is divided into manual pendulum hammer type impact testing machine, semi-automatic impact testing machine, digital impact testing machine, microcomputer control impact testing machine, drop hammer impact testing machine and nonmetallic impact testing machine, and the impact testing machine of the application is a pendulum hammer type impact testing machine.

[0003] The patent No. CN207600871U proposes a pendulum hammer type impact testing machine, which automatically moves the sample to the test position, shortens the test time, makes the test more convenient and safe, improves the work efficiency, and sets the notch on the impact head, which is easier to limit the sample than the previous plane impact head, prevents slipping, and ensures the success rate of the test, but the pendulum hammer of the testing machine will vibrate when knocking the sample, and the continuous vibration caused by continuous work will damage the testing machine and affect its service life. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that the pendulum hammer of the testing machine will vibrate when knocking the sample, and the continuous vibration caused by continuous work will damage the testing machine and affect its service life, and proposes a concrete impact testing machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a concrete impact testing machine, comprising: a support, a sample anvil and a rack are fixed on the top of the support, a supporting frame is fixed on the top of the back of the rack, a motor is installed in the supporting frame, the output end of the motor penetrates through the front of the rack and is fixed with a swing arm, one end of the swing arm is fixed with a pendulum hammer, a base is fixed at the bottom of the support, a damping mechanism and a water storage bin are arranged in the base.

[0006] As a further scheme of the utility model, the middle position of the sample anvil is a sample placing opening, reset springs are installed in the inside of both sides of the sample anvil, one end of the reset spring is fixed with a top block, the top block is in sliding connection with the sample anvil, and one end of the top block is located in the inside of the sample anvil.

[0007] As a further scheme of the utility model, a micro pump is fixed on the top of the support, a pipeline is arranged in the inside of the supporting frame, a semiconductor refrigerating fin is installed in the inside of the water storage bin, the micro pump is connected with a water pipe, the top of the water pipe is connected with the pipeline, and the bottom of the water pipe is located at the bottom of the water storage bin.

[0008] As a further scheme of the utility model, the damping mechanism includes a conductive rod fixed at the bottom of the support, the inner wall of the support is slidably connected with a damping plate in the vertical direction, and a damper is rotatably installed at the bottom of the support and rotatably connected with the damping plate at the top.

[0009] As a further scheme of the utility model, a hollow seat is fixed inside the support, and the hollow seat is provided with a horizontal groove.

[0010] As a further scheme of the utility model, a first damping spring is fixed at the bottom of the damping plate, and the bottom of the first damping spring is fixedly connected with the top of the hollow seat.

[0011] As a further scheme of the utility model, a baffle is fixed inside the hollow seat, a push plate is slidably connected with the bottom of the support, and the baffle is fixed with a second damping spring at one end.

[0012] As a further scheme of the utility model, a connecting rod is rotatably connected with the bottom of the damping plate, and the connecting rod penetrates through the horizontal groove and is rotatably connected with the push plate.

[0013] The concrete impact testing machine has the advantages that:

[0014] 1. The vibration generated during the operation of the testing machine is transmitted to the damping plate through the conductive rod, a part of the vibration is reduced through the damping plate, the damping plate may be lowered and compress the first damping spring after being vibrated, then the connecting rod is rotated to drive the push plate to move, the push plate compresses the second damping spring when moving, the vibration is further reduced through the first damping spring and the second damping spring, and then the damper is used in cooperation with the first damping spring and the second damping spring to further improve the damping effect.

[0015] 2. The concrete sample is placed into the placing opening of the sample anvil, the concrete sample is not regular, the wider the concrete sample is, the deeper the top block is pressed in, the different positions of the concrete sample can be clamped by the top block to improve the stability of the concrete sample and facilitate the following test. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a testing machine appearance structure schematic diagram;

[0017] Figure 2 The utility model provides a testing machine back structure schematic diagram;

[0018] Figure 3 The utility model provides a testing machine plan;

[0019] Figure 4The pipeline structure in the support frame is shown in the schematic view of the utility model.

[0020] Figure 5 The sample anvil structure schematic view is shown in the utility model.

[0021] Figure 6 The utility model provides Figure 5 The local structure schematic view is shown in the utility model.

[0022] Figure 7 The damping mechanism structure schematic view is shown in the utility model.

[0023] In the drawing: 1, support; 2, sample anvil; 3, rack; 4, support frame; 5, motor; 6, swing arm; 7, pendulum; 8, base; 9, water storage bin; 10, reset spring; 11, top block; 12, micro pump; 13, pipeline; 14, semiconductor refrigerating sheet; 15, water pipe; 16, conducting rod; 17, damping plate; 18, damper; 19, hollow seat; 21, transverse groove; 22, first damping spring; 23, baffle; 24, push plate; 25, second damping spring; 26, connecting rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the overall structure of the utility model, and the embodiments thereof will be described below.

[0026] A concrete impact testing machine, comprising: a support 1, a sample anvil 2 is fixed on the top of the support 1, a rack 3, a support frame 4 is fixed on the top of the back of the rack 3, a motor 5 is installed in the inside of the support frame 4, the output end of the motor 5 penetrates to the front of the rack 3 and is fixed with a swing arm 6, one end of the swing arm 6 is fixed with a pendulum 7, the bottom of the support 1 is fixed with a base 8, a damping mechanism and a water storage bin 9 are arranged in the inside of the base 8, the middle position of the sample anvil 2 is a sample placing opening, reset springs 10 are installed in the inside of the both sides of the sample anvil 2, one end of the reset springs 10 is fixed with a top block 11, the top block 11 is in sliding connection with the sample anvil 2, and one end of the top block 11 is located in the inside of the sample anvil 2.

[0027] It should be noted that the concrete sample is placed in the sample anvil 2, since the concrete sample is not regular, the wider the concrete sample is, the deeper the top block 11 is squeezed in, which is beneficial to clamping the concrete sample at different positions by the top block 11 to improve the stability of the concrete sample and facilitate the following test, when the test starts, the motor 5 drives the swing arm 6 and the pendulum 7 to rotate, the pendulum 7 strikes the concrete sample when rotating, through the sensor and other measuring devices installed on the testing machine, the related parameters in the impact process of the pendulum 7 can be recorded, such as impact energy and force at the moment of impact, according to these measurement data, the performance of the sample under impact can be evaluated, such as impact strength and toughness indicators.

[0028] Further, the top of the support 1 is fixed with a micro pump 12, the inside of the support frame 4 is provided with a pipeline 13, the inside of the water storage bin 9 is installed with a semiconductor refrigerating fin 14, the water pipe 15 connected with the micro pump 12, the top of the water pipe 15 is connected with the pipeline 13, and the bottom of the water pipe 15 is located at the bottom of the water storage bin 9. The semiconductor refrigerating fin 14 makes the water in the water storage bin 9 into cooling water. The patent with application number 2022226733460 discloses the semiconductor refrigerating fin 14, and then the micro pump 12 starts to send the cooling water from the water pipe 15 into the inside of the pipeline 13, and then the cooling water circulates in the pipeline 13 to take away the temperature generated by the motor 5 during work. The heat absorption in the pipeline 13 is heated again and returned to the water storage bin 9 to be cold, which is beneficial to realize the circulating cooling of the motor 5.

[0029] In addition, the damping mechanism includes a conductive rod 16 fixed at the bottom of the support 1, a damping plate 17 slidingly connected to the inner wall of the base 8 in the vertical direction, a damper 18 rotatably installed at the bottom of the base 8 and rotatably connected to the top of the damping plate 17, a hollow seat 19 fixed in the inside of the base 8, and the hollow seat 19 is provided with a transverse groove 21, and the bottom of the damping plate 17 is fixed with a first damping spring 22, and the bottom of the first damping spring 22 is fixedly connected with the top of the hollow seat 19.

[0030] Next, the inside of the hollow seat 19 is fixed with a baffle 23, the bottom of the base 8 is slidingly connected with a push plate 24, one end of the baffle 23 is fixed with a second damping spring 25, the bottom of the damping plate 17 is rotatably connected with a connecting rod 26, the connecting rod 26 penetrates through the transverse groove 21 and is rotatably connected with the push plate 24.

[0031] Specifically, the vibration generated by the tester during work is transmitted to the damping plate 17 through the conductive rod 16, and a part of the vibration is reduced through the damping plate 17. The damping plate 17 may be lowered and compress the first damping spring 22 after being vibrated, then the connecting rod 26 rotates to drive the push plate 24 to move, the push plate 24 compresses the second damping spring 25 when moving, and the vibration is further reduced through the first damping spring 22 and the second damping spring 25, and then the damper 18 cooperates with the first damping spring 22 and the second damping spring 25 to further improve the damping effect.

[0032] Working principle: the concrete sample is placed into the sample anvil 2, because the concrete sample is not regular, the wider the concrete sample is, the deeper the top block 11 is squeezed in, which is beneficial to make the different positions of the concrete sample be clamped by the top block 11, improve the stability of the concrete sample and facilitate the following test, when the test starts, the motor 5 drives the swing arm 6 and the pendulum 7 to rotate, the pendulum 7 strikes the concrete sample when rotating, through the sensors and other measuring devices installed on the testing machine, the related parameters in the impact process of the pendulum 7 can be recorded, such as impact energy and force at the moment of impact, according to these measurement data, the performance of the sample under impact can be evaluated, such as impact strength and toughness indicators, the semiconductor refrigeration sheet 14 makes the water in the water storage bin 9 form cooling water, then the micro pump 12 starts to send the cooling water from the water pipe 15 into the pipe 13, then the cooling water circulates in the pipe 13 to take away the temperature generated by the operation of the motor 5, the heat absorption in the pipe 13 is heated again and returned to the water storage bin 9 to be cold, which is beneficial to realize the circulating cooling of the motor 5, the vibration generated by the operation of the testing machine is transmitted to the damping plate 17 through the conduction rod 16, a part of the vibration is reduced through the damping plate 17, the damping plate 17 may be lowered and compress the first damping spring 22 after being vibrated, then the connecting rod 26 rotates to drive the push plate 24 to move, the push plate 24 is pressed when moving, the second damping spring 25 is compressed, the vibration is further reduced through the first damping spring 22 and the second damping spring 25, then the damper 18 is used in cooperation with the first damping spring 22 and the second damping spring 25 to further improve the damping effect.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A concrete impact testing machine comprising: Support (1), characterized in that: the top of the support (1) is fixed with sample anvil (2), frame (3), the back of the frame (3) is fixed with support frame (4), the inside of the support frame (4) is installed with motor (5), the output end of the motor (5) penetrates to the front of the frame (3) and is fixed with swing arm (6), one end of the swing arm (6) is fixed with pendulum (7), the bottom of the support (1) is fixed with base (8), the inside of the base (8) is provided with damping mechanism and water storage bin (9).

2. A concrete impact testing machine according to claim 1, wherein The damping mechanism includes a conductive rod (16) fixed at the bottom of the support (1), a damping plate (17) is slidably connected to the inner wall of the base (8) in the vertical direction, a damper (18) is rotatably installed at the bottom of the base (8) and the top of the damper (18) is rotatably connected with the damping plate (17).

3. The concrete impact testing machine of claim 1, wherein, The inside of the base (8) is fixed with a hollow seat (19), and the hollow seat (19) is provided with a transverse groove (21).

4. The concrete impact testing machine of claim 2, wherein, The bottom of the damping plate (17) is fixed with a first damping spring (22), and the bottom of the first damping spring (22) is fixedly connected with the top of the hollow seat (19).

5. A concrete impact testing machine according to claim 4, wherein The inside of the hollow seat (19) is fixed with a baffle (23), the bottom of the base (8) is slidably connected with a push plate (24), one end of the baffle (23) is fixed with a second damping spring (25).

6. The concrete impact testing machine of claim 2, wherein, The bottom of the damping plate (17) is rotatably connected with a connecting rod (26), the connecting rod (26) penetrates through the transverse groove (21) and is rotatably connected with the push plate (24).

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