Table body damping device for impact test table

Abstract

The utility model provides a table body damping device for an impact test table, which belongs to the field of impact test devices and comprises a base, a damping assembly and a lifting assembly. The top of the base is provided with a supporting table. A testboard is installed in the middle of the surface of the supporting table. According to the utility model, sleeves are hinged to the two sides of the surface of a base, connecting rods are installed in pistons in the sleeves, the tops of the connecting rods are hinged to the two sides of a supporting table, and damping springs are installed on the surfaces of the sleeves and the surfaces of the connecting rods through supporting rings. The connecting rod is stressed to move towards the interior of the sleeve, the connecting rod moves to compress the damping spring through the supporting ring, the movement range of the connecting rod in the sleeve is restrained through the damping spring, and therefore vibration generated after the base is impacted is reduced, meanwhile, an air spring is further installed between the base and the supporting table, and the damping effect of the base is further improved through the air spring. And the vibration amplitude generated by the device is reduced and kept stable.

Description

Technical Field

[0001] This utility model relates to the field of impact testing equipment, specifically a shock absorption device for an impact testing bench. Background Technology

[0002] An impact testing bench is a testing instrument that simulates the impact environment a product experiences in actual use. It can be used to test the impact resistance of a product under impact conditions. Impact testing can also be used to optimize product structure and improve product reliability. However, current impact testing benches often experience a secondary impact after the initial impact test due to rebound, which can significantly affect the test results and potentially damage or deform the test sample. One impact testing bench, with application number "CN202420766068.X", changes the angle between the second and third support plates as the impact force on the carrier plate increases. Simultaneously, the carrier plate descends, preventing the impact head from colliding with the test sample after rebounding, thus avoiding secondary impact and preventing any impact on the impact test results or damage / deformation of the test sample. However, this bench still has some shortcomings: when the impact head strikes the test sample downwards, the base experiences a significant impact. Since the base lacks a shock-absorbing structure, the entire device vibrates, affecting its stability. Utility Model Content

[0003] The purpose of this invention is to provide a shock absorption device for an impact testing bench, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a shock absorption device for an impact test bench, comprising a base, a shock absorption assembly, and a lifting assembly;

[0005] Wherein: the top of the base is provided with a support platform, a test platform is installed in the middle of the surface of the support platform, and an impact head is provided on the top of the test platform;

[0006] The shock absorption assembly includes sleeves hinged to both sides of the base surface. A connecting rod is installed inside the sleeve and the top of the connecting rod is hinged to both sides of the support platform. Support rings are installed on the surfaces of the sleeves and the connecting rod. A shock absorption spring is provided between the two support rings. An air spring is fixedly installed at the center of the top of the base and the top of the air spring is connected to the center of the bottom of the support platform.

[0007] The lifting assembly includes a mounting bracket fixedly installed on one side of the support platform surface. A lead screw is rotatably installed inside the mounting bracket. A stepper motor is fixedly installed at the top of the mounting bracket. The telescopic end of the stepper motor is fixedly connected to the top of the lead screw. A lifting block is threadedly connected to the surface of the lead screw. A support is fixedly installed on the surface of the lifting block. Support rods are provided on both sides of the support. Lifting blocks are installed on both sides of the bottom of the impact head. The support rods are correspondingly inserted into the lifting blocks.

[0008] As a preferred embodiment of this utility model: L-shaped brackets are symmetrically installed on both sides of the support, and a rotary cylinder is fixedly installed on the surface of the L-shaped bracket, with the rotating end of the rotary cylinder being fixedly connected to one side of the support rod.

[0009] As a preferred embodiment of this utility model: slide rails are fixedly installed on both sides of the surface of the mounting bracket, and sliders are installed on both sides of the back of the support, with the sliders slidably mounted on the surface of the slide rails.

[0010] As a preferred embodiment of this utility model: the surface of the support platform is fixedly installed with sliding rods on both sides of the test platform, and the two ends of the impact head are fixedly installed with limiting sliding sleeves, which slide on the surface of the sliding rods.

[0011] As a preferred embodiment of this utility model, a damping block is fixedly installed on the top of the slide rod.

[0012] As a preferred embodiment of this utility model: a control panel is mounted on the side of the mounting bracket, the stepper motor and the rotary cylinder are both electrically connected to the control panel, and the control panel is electrically connected to an external power supply.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) Sleeves are hinged on both sides of the base surface. A connecting rod is installed inside the sleeve piston. The top of the connecting rod is hinged to both sides of the support platform. Shock-absorbing springs are installed on the surfaces of the sleeve and the connecting rod through the support ring. When the impact test is carried out, when the impact force is transmitted to the base through the support platform, the connecting rod is forced to move into the sleeve. The movement of the connecting rod compresses the shock-absorbing spring through the support ring. The shock-absorbing spring suppresses the range of motion of the connecting rod inside the sleeve, thereby reducing the vibration generated by the base after the impact. At the same time, an air spring is also installed between the base and the support platform. The air spring further improves the shock absorption effect of the base and reduces the vibration amplitude generated by the device to maintain stability.

[0015] (2) A mounting bracket is installed on one side of the support platform. A lead screw is rotatably installed inside the mounting bracket. When the stepper motor rotates, it drives the lead screw to rotate. The rotation of the lead screw drives the lifting block on the surface to rotate. A support is installed on the surface of the lifting block. The support slides on the slide rail surface through the sliders installed on both sides of the back, so that the lifting block rises and falls along the surface of the lead screw when the lead screw rotates. The lifting block drives the support rods on both sides of the support to contact the lifting blocks on both sides of the bottom of the impact head and lifts the impact head to the test impact height, which is convenient for impact testing. 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 schematic diagram of the shock absorption component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the lifting component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the limiting sliding sleeve of this utility model.

[0020] In the diagram: 1. Base; 2. Support platform; 3. Test platform; 4. Impact head;

[0021] 5. Shock absorber assembly; 51. Sleeve; 52. Connecting rod; 53. Support ring; 54. Shock absorber spring; 55. Air spring;

[0022] 6. Lifting assembly; 61. Mounting bracket; 62. Lead screw; 63. Stepper motor; 64. Lifting block; 65. Support; 66. Support rod; 67. Lifting block; 7. L-shaped bracket; 8. Rotary cylinder; 9. Slide rail;

[0023] 10. Slider; 11. Sliding rod; 12. Limiting sleeve; 13. Damping block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1 - Figure 4A shock absorption device for an impact test bench includes: a base 1, a shock absorption component 5, and a lifting component 6; a support platform 2 is provided on the top of the base 1, a test bench 3 is installed in the middle of the surface of the support platform 2, and an impact head 4 is provided on the top of the test bench 3.

[0026] Please see Figure 1 , Figure 2 The shock absorption assembly 5 includes sleeves 51 hinged to both sides of the surface of the base 1. A connecting rod 52 is installed inside the sleeve 51. The top of the connecting rod 52 is hinged to both sides of the support platform 2. Support rings 53 are installed on the surfaces of both the sleeve 51 and the connecting rod 52. A shock absorption spring 54 is provided between the two support rings 53. An air spring 55 is fixedly installed at the middle of the top of the base 1. The top of the air spring 55 is connected to the middle of the bottom of the support platform 2.

[0027] In practical use: Sleeves 51 are hinged to both sides of the surface of the base 1. A connecting rod 52 is installed inside the piston of the sleeve 51. The top of the connecting rod 52 is hinged to both sides of the support platform 2. A damping spring 54 is installed on the surface of the sleeve 51 and the connecting rod 52 through the support ring 53. When an impact test is performed, when the impact force is transmitted to the base 1 through the support platform 2, the connecting rod 52 is forced to move inward into the sleeve 51. The movement of the connecting rod 52 compresses the damping spring 54 through the support ring 53. The damping spring 54 suppresses the range of motion of the connecting rod 52 inside the sleeve 51, thereby reducing the vibration generated by the base 1 after impact. At the same time, an air spring 55 is also installed between the base 1 and the support platform 2. The air spring 55 improves the damping effect of the base 1 and reduces the vibration amplitude generated by the device to maintain stability.

[0028] Please see Figure 3 , Figure 4 The lifting assembly 6 includes a mounting bracket 61 fixedly installed on one side of the surface of the support platform 2. A lead screw 62 is rotatably installed inside the mounting bracket 61. A stepper motor 63 is fixedly installed at the top of the mounting bracket 61. The telescopic end of the stepper motor 63 is fixedly connected to the top of the lead screw 62. A lifting block 64 is threadedly connected to the surface of the lead screw 62. A support 65 is fixedly installed on the surface of the lifting block 64. Support rods 66 are provided on both sides of the support 65. Lifting blocks 67 are installed on both sides of the bottom of the impact head 4. The support rods 66 are correspondingly inserted into the lifting blocks 67. Slide rails 9 are fixedly installed on both sides of the surface of the mounting bracket 61. Slider blocks 10 are installed on both sides of the back of the support 65. The sliders 10 are slidably installed on the surface of the slide rails 9.

[0029] In practical use: A mounting bracket 61 is installed on one side of the surface of the support platform 2. A lead screw 62 is rotatably installed inside the mounting bracket 61. When the stepper motor 63 rotates, it drives the lead screw 62 to rotate. The rotation of the lead screw 62 drives the lifting block 64 on the surface to rotate. A support 65 is installed on the surface of the lifting block 64. The support 65 slides on the surface of the slide rail 9 through the sliders 10 installed on both sides of the back, so that when the lead screw 62 rotates, the lifting block 64 rises and falls along the surface of the lead screw 62. The lifting block 64 drives the support rods 66 on both sides of the support 65 to contact the lifting blocks 67 on both sides of the bottom of the impact head 4 and lift the impact head 4 to the test impact height, which is convenient for impact testing.

[0030] Please see Figure 3 L-shaped brackets 7 are symmetrically installed on both sides of the support 65. A rotary cylinder 8 is fixedly installed on the surface of the L-shaped bracket 7. The rotating end of the rotary cylinder 8 is fixedly connected to one side of the support rod 66.

[0031] In practical use: L-shaped brackets 7 are symmetrically installed on both sides of the support 65. A rotary cylinder 8 is fixedly installed on the surface of the L-shaped bracket 7. The rotating end of the rotary cylinder 8 is fixed to one side of the support rod 66. The rotary cylinder 8 can control the rotation of the support rod 66. When the support rod 66 lifts the impact head 4 to the test height, the rotary cylinder 8 controls the support rod 66 to rotate downward, so that the support rod 66 is disengaged from the lifting block 67, making it easy for the impact head 4 to fall freely.

[0032] Please see Figure 4 The support platform 2 is fixedly installed with slide rods 11 on both sides of the test platform 3. The two ends of the impact head 4 are fixedly installed with limit sleeves 12. The limit sleeves 12 slide on the surface of the slide rods 11. The top of the slide rods 11 is fixedly installed with damping blocks 13.

[0033] In practical use: The surface of the support platform 2 is equipped with slide rods 11 on both sides of the test platform 3. The two ends of the impact head 4 slide on the surface of the slide rod 11 through the limiting slide sleeves 12, so that the impact head 4 falls along the slide rod 11, ensuring that the impact head 4 is stably in contact with the test platform 3. The damping block 13 at the top of the slide rod 11 limits the lifting height of the impact head 4.

[0034] Please see Figure 3 The control panel is mounted on the side of the mounting bracket 61. The stepper motor 63 and the rotary cylinder 8 are electrically connected to the control panel, which is electrically connected to an external power supply.

[0035] In practical use: When the control panel is connected to the external power supply, the stepper motor 63 and the rotary cylinder 8 are powered on and controlled to run. When the control panel is disconnected from the external power supply, the equipment stops running.

[0036] Sleeves 51 are hinged to both sides of the surface of the base 1. A connecting rod 52 is installed inside the piston of the sleeve 51. The top of the connecting rod 52 is hinged to both sides of the support platform 2. A damping spring 54 is installed on the surface of the sleeve 51 and the connecting rod 52 through the support ring 53. When an impact test is performed, when the impact force is transmitted to the base 1 through the support platform 2, the connecting rod 52 is forced to move inward into the sleeve 51. The movement of the connecting rod 52 compresses the damping spring 54 through the support ring 53. The damping spring 54 suppresses the range of movement of the connecting rod 52 inside the sleeve 51, thereby reducing the vibration generated by the base 1 after impact. At the same time, an air spring 55 is also installed between the base 1 and the support platform 2. The air spring 55 improves the damping effect of the base 1 and reduces the vibration amplitude generated by the device to maintain stability.

[0037] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock test stand body damping device characterized by comprising: Include: Base (1), the top of the base (1) is provided with a support table (2), the surface of the support table (2) is provided with a test table (3), the top of the test table (3) is provided with an impact head (4); Damping assembly (5), the sleeve (51) is hinged on both sides of the surface of the base (1), the piston inside the sleeve (51) is provided with a connecting rod (52), the top of the connecting rod (52) is hinged on both sides of the support table (2), the surface of the sleeve (51) and the connecting rod (52) is provided with a support ring (53), the damping spring (54) is arranged between the two support rings (53), the air spring (55) is fixedly installed at the top of the base (1), the top of the air spring (55) is connected with the middle of the bottom of the support table (2); Lifting assembly (6), the mounting bracket (61) is fixedly installed on one side of the surface of the support table (2), the screw rod (62) is rotatably installed in the mounting bracket (61), the step motor (63) is fixedly installed at the top of the mounting bracket (61), the telescopic end of the step motor (63) is fixedly connected with the top of the screw rod (62), the lifting block (64) is threadedly connected with the surface of the screw rod (62), the support (65) is fixedly installed on the surface of the lifting block (64), the support rods (66) are arranged on both sides of the support (65), the lifting blocks (67) are arranged on both sides of the bottom of the impact head (4), and the support rods (66) are correspondingly inserted into the lifting blocks (67).

2. The shock table body damping device of claim 1, wherein: The L-shaped supports (7) are symmetrically installed on both sides of the support (65), the rotary air cylinder (8) is fixedly installed on the surface of the L-shaped support (7), and the rotating end of the rotary air cylinder (8) is fixedly connected with one side of the support rod (66).

3. The shock table body damping device of claim 1, wherein: The slide rails (9) are fixedly installed on both sides of the surface of the mounting bracket (61), the sliding blocks (10) are installed on both sides of the back of the support (65), and the sliding blocks (10) are slidably installed on the surface of the slide rails (9).

4. The shock table body damping device of claim 1, wherein: The slide rods (11) are fixedly installed on both sides of the surface of the support table (2), the limiting sliding sleeves (12) are fixedly installed at both ends of the impact head (4), and the limiting sliding sleeves (12) slide on the surface of the slide rods (11).

5. The shock table body damping device of claim 4, wherein: The damping blocks (13) are fixedly installed on the top of the slide rods (11).

6. The shock table body damping device of claim 2, wherein: The control panel is installed on the side of the mounting bracket (61), the step motor (63) and the rotary air cylinder (8) are electrically connected with the control panel, and the control panel is electrically connected with the external power supply.

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