Single-column type drop hammer impact testing machine

Abstract

The utility model discloses a single-column type drop hammer impact testing machine, and particularly relates to the technical field of drop hammer impact testing machines, which comprises a stand column, a base arranged at the bottom end of the stand column, a winch arranged at the top end of the stand column, two vertical rails arranged on one side of the stand column, a sliding block connected with the two vertical rails in a sliding mode, and a falling arm arranged on the sliding block. A hammerhead is installed at the bottom of one end of the falling arm, the top of the other end of the falling arm is connected with a rope of a winch, a lifting adjusting assembly is installed at the bottom end of the other side of the stand column, and two brake assemblies are installed on the lifting adjusting assembly. Falling of the sliding block is buffered and positioned through the brake assembly, repeated rebound of the sliding block is avoided, and the detection precision is improved; the height of the brake assembly can be adjusted through the lifting adjusting assembly, and the detection requirements of interbody fusion cages or ceramic joint prostheses of different heights are met. The impact detection device has the advantages that the impact detection precision of medical accessories such as interbody fusion cages and ceramic joint prostheses is improved, and the quality of medical products is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of drop hammer impact testing machines, and more specifically, to a single-column drop hammer impact testing machine. Background Technology

[0002] In the medical field, the quality of medical devices such as interbody fusion devices and ceramic joint prostheses is crucial, as their performance directly affects patient treatment outcomes and rehabilitation. Impact testing is one of the important methods for evaluating the quality of these medical devices. By simulating the impact forces during actual use, it tests whether the product meets quality standards, effectively ensuring the product's safety and reliability.

[0003] Currently, existing drop hammer impact testing machines have several significant shortcomings when performing impact tests on interbody fusion cages, ceramic joint prostheses, and other similar devices. In some cases, due to the lack of an effective braking device after the hammer impacts, the slider tends to bounce repeatedly up and down under the reaction force of the hammer, resulting in multiple impacts. This makes it difficult to accurately calculate the impact force, severely impacting the accuracy of the test results. Furthermore, existing equipment often lacks the flexibility to adjust the height of the braking components, making it impossible to precisely match interbody fusion cages or ceramic joint prostheses placed at different heights for testing. This limits the applicability of the equipment and fails to meet diverse testing needs.

[0004] Therefore, a single-column drop hammer impact testing machine is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a single-column drop hammer impact testing machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a single-column falling hammer impact testing machine, comprising a column, a base at the bottom of the column, a winch at the top of the column, two vertical rails on one side of the column, a slider slidably connected to the two vertical rails, a falling arm mounted on the slider, a hammer head mounted at the bottom of one end of the falling arm, and the top of the other end of the falling arm connected to the rope of the winch, a lifting adjustment assembly mounted at the bottom of the other side of the column, and two brake assemblies mounted on the lifting adjustment assembly.

[0007] Preferably, a connecting plate is welded to one side of the slider, and the slider is symmetrically provided with toothed grooves that cooperate with the brake assembly.

[0008] Preferably, the lifting adjustment assembly includes a guide rail, a slide block, and a first electric actuator. Two guide rails are provided, which are installed parallel to each other at the bottom end of one side of the column. The slide block is slidably connected to the two guide rails, and the slide block is connected to the first electric actuator installed on the column.

[0009] Preferably, two brake assemblies are symmetrically mounted on the slide block, and the two brake assemblies are respectively located on both sides of the column.

[0010] Preferably, the brake assembly includes a second electric actuator, a fixed plate, a toothed plate, a spring box, and a support block. The second electric actuator is mounted on a slide block, and the telescopic end of the second electric actuator is connected to the fixed plate. A toothed plate is vertically welded to one side of the fixed plate, and a spring box is fixed to the bottom end of one side of the fixed plate. The support block is slidably engaged with the top end of the spring box.

[0011] Preferably, a spring is installed inside the spring box, and a pressure sensor is installed at the bottom of the spring.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting a braking component, the slider can be cushioned when it presses down on the braking component during its descent. After the slider falls to a specified height, the braking component can squeeze and fix the slider, preventing it from repeatedly bouncing up and down when the hammer is subjected to reaction force. This effectively avoids the inability to calculate the hammering force due to multiple hammer blows, and improves the accuracy of the detection results for intervertebral fusion devices or ceramic joint prostheses.

[0014] 2. The height of the brake assembly can be adjusted via the lifting and adjusting component, allowing it to precisely fit intervertebral fusion devices or ceramic joint prostheses of different heights, ensuring the accuracy of impact testing and meeting the needs of different testing scenarios.

[0015] 3. The connecting plate welded to one side of the slider facilitates the installation and fixation of the falling arm. At the same time, the toothed grooves on the slider cooperate with the brake assembly to effectively prevent the slider from wobbling up and down, making the overall structure of the equipment more stable and conducive to the smooth conduct of the impact test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a side view of the three-dimensional structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the slider of this utility model.

[0019] Figure 4 This is a schematic diagram of the lifting and adjusting component of this utility model.

[0020] Figure 5 This is a schematic diagram of the brake assembly of this utility model.

[0021] The attached diagram is labeled as follows: 1. Column; 2. Base; 3. Winch; 4. Vertical rail; 5. Slider; 6. Lowering arm; 7. Hammer head; 8. Lifting adjustment assembly; 801. Guide rail; 802. Slide block; 803. First electric actuator; 9. Brake assembly; 901. Second electric actuator; 902. Fixing plate; 903. Tooth plate; 904. Spring box; 905. Support block; 10. Connecting plate; 11. Tooth groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figures 1-5 The single-column drop hammer impact testing machine shown includes a column 1, a base 2 at the bottom of the column 1, a winch 3 at the top of the column 1, two vertical rails 4 on one side of the column 1, a slider 5 slidably connected to the two vertical rails 4, a drop arm 6 mounted on the slider 5, a hammer head 7 mounted at the bottom of one end of the drop arm 6, and a rope connected to the top of the other end of the drop arm 6 to the winch 3. A lifting adjustment assembly 8 is mounted at the bottom of the other side of the column 1, and two brake assemblies 9 are mounted on the lifting adjustment assembly 8.

[0024] In practice, the interbody fusion device or ceramic joint prosthesis is placed directly below the hammer head 7, with the winch 3 rope in a free state. This allows the falling arm 6 to descend under gravity. During the descent, the slider 5 slides down the vertical rail 4, ensuring the hammer head 7 falls vertically to impact the interbody fusion device or ceramic joint prosthesis, thus effectively testing its quality. As the slider 5 falls, it is cushioned by pressing against the brake assembly 9. Simultaneously, once the slider 5 reaches the designated height, the brake assembly 9 activates, squeezing the slider 5 to fix its position. This prevents the slider 5 from repeatedly bouncing up and down under the reaction force of the hammer head 7, improving the test results for the interbody fusion device or ceramic joint prosthesis and avoiding the inability to calculate the impact force due to repeated hammering. The lifting adjustment assembly 8 is used to adjust the height of the two brake assemblies 9, allowing for precise coordination of the brake assemblies 9 when interbody fusion devices or ceramic joint prostheses are placed at different heights, thus improving the accuracy of the impact test.

[0025] A connecting plate 10 is welded to one side of the slider 5, and the slider 5 is symmetrically provided with toothed grooves 11 that cooperate with the brake assembly 9.

[0026] In practice, the connecting plate 10 is used to facilitate the installation and fixation of the falling arm 6, and the opening of the toothed groove 11 is achieved by the operation of the brake assembly 9, which moves the toothed groove 11 in the direction of engagement, thereby fixing the position of the slider 5 and preventing the slider 5 from shaking up and down.

[0027] The lifting adjustment assembly 8 includes a guide rail 801, a slide block 802, and a first electric push rod 803. There are two guide rails 801, which are installed in parallel at the bottom end of one side of the column 1. The slide block 802 is slidably connected to the two guide rails 801, and the slide block 802 is connected to the first electric push rod 803 installed on the column 1.

[0028] Two brake assemblies 9 are symmetrically installed on the slide block 802, and the two brake assemblies 9 are respectively located on both sides of the column 1.

[0029] In practice, by extending and retracting the first electric actuator 803, the slide block 802 can be dragged up and down on the guide rail 801, thereby adjusting the height of the two brake components 9. This allows for appropriate adjustment of the height of the brake components 9 when conducting impact tests on intervertebral fusion devices or ceramic joint prostheses of different heights, while fixing the descent distance of the slider 5 to ensure the accuracy of the impact test.

[0030] The brake assembly 9 includes a second electric actuator 901, a fixing plate 902, a toothed plate 903, a spring box 904, and a support block 905. The second electric actuator 901 is mounted on the slide block 802. The telescopic end of the second electric actuator 901 is connected to the fixing plate 902. The toothed plate 903 is vertically welded to one side of the fixing plate 902. The spring box 904 is fixed to the bottom end of one side of the fixing plate 902. The support block 905 is slidably engaged with the top end of the spring box 904.

[0031] A spring is installed inside the spring box 904, and a pressure sensor is installed at the bottom of the spring.

[0032] In practice, during the impact test, when the slider 5 descends and presses against the support block 905, the spring is compressed, increasing the force on the pressure sensor. This causes the sensor to sense that the slider 5 has fallen to the set height, which in turn causes the second electric push rod 901 to retract, moving the toothed plate 903 towards the column 1. The toothed plate 903 then engages with the tooth groove 11, fixing the position of the slider 5 to prevent it from moving up and down repeatedly. This ensures that the hammer 7 stops after descending to the specified height, thereby improving the accuracy of the impact test.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-column drop hammer impact testing machine, comprising a column (1), characterized in that: The column (1) is provided with a base (2) at the bottom end, and a winch (3) is installed at the top end of the column (1). Two vertical rails (4) are provided on one side of the column (1). The two vertical rails (4) are slidably connected to a slider (5). A falling arm (6) is installed on the slider (5). A hammer (7) is installed at the bottom of one end of the falling arm (6). The top of the other end of the falling arm (6) is connected to the rope of the winch (3). A lifting adjustment assembly (8) is installed at the bottom end of the other side of the column (1). Two brake assemblies (9) are installed on the lifting adjustment assembly (8).

2. The single-column drop hammer impact testing machine according to claim 1, characterized in that: A connecting plate (10) is welded to one side of the slider (5), and the slider (5) is symmetrically provided with toothed grooves (11) that cooperate with the brake assembly (9).

3. The single-column drop hammer impact testing machine according to claim 2, characterized in that: The lifting adjustment assembly (8) includes a guide rail (801), a slide (802) and a first electric push rod (803). There are two guide rails (801), which are installed in parallel on the bottom of one side of the column (1). The slide (802) is slidably connected to the two guide rails (801), and the slide (802) is connected to the first electric push rod (803) installed on the column (1).

4. The single-column drop hammer impact testing machine according to claim 3, characterized in that: Two brake assemblies (9) are symmetrically installed on the slide (802), and the two brake assemblies (9) are respectively located on both sides of the column (1).

5. The single-column drop hammer impact testing machine according to claim 4, characterized in that: The brake assembly (9) includes a second electric actuator (901), a fixing plate (902), a toothed plate (903), a spring box (904), and a support block (905). The second electric actuator (901) is mounted on a slide (802). The telescopic end of the second electric actuator (901) is connected to the fixing plate (902). The toothed plate (903) is vertically welded to one side of the fixing plate (902). The spring box (904) is fixed to the bottom of one side of the fixing plate (902). The support block (905) is slidably engaged at the top of the spring box (904).

6. The single-column drop hammer impact testing machine according to claim 5, characterized in that: A spring is installed inside the spring box (904), and a pressure sensor is installed at the bottom of the spring.

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