A mechanical collision testing machine

Abstract

The utility model relates to the technical field of collision test equipment, and specifically discloses a mechanical collision test machine, including a test bench, wherein an impact platform is slidably installed on the top of the test bench through a guide rod, a base is movably arranged below the test bench, a plurality of connecting rods are hinged on the left and right sides of the bottom of the test bench, a slider is hinged on the bottom of each connecting rod, the slider is slidably connected to the base along the left and right directions, a middle blocking block is arranged between every two sliders, an end blocking block is arranged on the outer side of every two sliders, a first elastic member is arranged between the middle blocking block and the slider, a second elastic member is arranged between the end blocking block and the slider, a plurality of sleeves are longitudinally arranged on the top of the base, a limiting column is arranged on the bottom of the test bench corresponding to the sleeve, the limiting column is slidably connected in the sleeve, a lifting mechanism for lifting the impact platform is arranged on the base, and the utility model can effectively reduce the impact on the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of collision test equipment, in particular to a mechanical collision test machine. Background Art

[0002] Mechanical collision tester, also known as acceleration impact tester, uses the impact force of the free fall of the impact platform to verify the impact resistance of the material. The structure of the existing mechanical collision tester can refer to the patent document with authorization announcement number CN209055299U. Since a large impact will occur when the impact platform falls from a high place onto the waveform generator, in order to prevent the entire device from causing a large vibration to the ground, multiple shock absorbers will be set between the base and the test bench to reduce shock. Existing shock absorbers all reduce shock in the longitudinal direction, and in fact, some vibration will still be transmitted to the ground, which needs to be improved. Utility Model Content

[0003] In order to solve the problems mentioned in the background technology, the purpose of the utility model is to provide a mechanical collision testing machine.

[0004] In order to achieve the above objectives, the technical solution of the utility model is:

[0005] A mechanical collision tester comprises a test bench, an anvil is arranged in the middle of the test bench, a waveform generator is installed on the top of the anvil, two guide rods are arranged longitudinally on the test bench, an impact table is slidably installed on the two guide rods, a brake member is arranged on the impact table, and the brake member is in contact with the guide rods. A base is movably arranged below the test bench, a plurality of connecting rods are hinged on the left and right sides of the bottom of the test bench, two connecting rods arranged opposite to each other in the left and right directions are arranged in an eight-shaped pattern, a slider is hinged on the bottom of each connecting rod, and the slider is slidably connected to the base along the left and right directions A middle blocking block is arranged between every two sliders arranged relatively to each other along the left and right directions, and an end blocking block is arranged on the outer side of every two sliders arranged relatively to each other along the left and right directions, the middle blocking block and the end blocking blocks are fixedly connected to the base, a first elastic member is arranged between the middle blocking block and the adjacent slider, a second elastic member is arranged between the end blocking block and the adjacent slider, a plurality of sleeves are longitudinally arranged on the top of the base, and a limiting column is arranged at the bottom of the test bench corresponding to the sleeve, the limiting column is slidably connected in the sleeve, and a lifting mechanism for lifting the impact table is provided on the base.

[0006] Furthermore, a guide column is fixedly connected between the end blocking block and the adjacent middle blocking block, and the sliding block is slidably connected to the guide column.

[0007] Furthermore, the first elastic member and the second elastic member are both compression springs, and the first elastic member and the second elastic member are both sleeved on opposite guide pillars.

[0008] Furthermore, the lifting mechanism includes a screw module and a support arm. The screw module is longitudinally arranged on the base. A plurality of support arms are transversely installed on the slide table of the screw module. The support arms extend to the bottom of the impact table.

[0009] The beneficial effect of the utility model is that when the impact platform falls onto the waveform generator and causes the test platform to shake up and down, the downward impact force of the test platform will be converted into a lateral impact through the connecting rod and the slider, and the first elastic member and the second elastic member can effectively mitigate the lateral impact, greatly reducing the vibration caused to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an axonometric view of the first orientation of the embodiment of the utility model;

[0011] Figure 2 It is an axonometric view of the second orientation of the embodiment of the utility model;

[0012] Figure 3 It is a cross-sectional view of an embodiment of the utility model.

[0013] Explanation of the accompanying figures: 1. test bench, 11. guide rod, 12. limit column, 2. anvil, 21. waveform generator, 3. impact table, 4. brake member, 5. base, 51. middle stop block, 52. end stop block, 53. sleeve, 54. guide column, 6. connecting rod, 7. slider, 8. first elastic member, 9. second elastic member, 10. screw module, 101. support arm. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.

[0015] like Figure 1-Figure 3As shown, a mechanical collision tester includes a test bench 1, an anvil 2 is provided in the middle of the test bench 1, a waveform generator 21 is installed on the top of the anvil 2, two guide rods 11 are longitudinally arranged on the test bench 1, an impact table 3 is slidably installed on the two guide rods 11, a brake member 4 is provided on the impact table 3, the brake member 4 is in contact with the guide rods 11, and the brake member 4 can prevent the impact table 3 from sliding on the guide rods 11, a base 5 is movably arranged below the test bench 1, two connecting rods 6 are hinged on the left and right sides of the bottom of the test bench 1, the two connecting rods 6 arranged opposite to each other in the left and right directions are arranged in an "eight" shape, a slider 7 is hinged on the bottom of each connecting rod 6, the slider 7 is slidably connected to the base 5 in the left and right directions, a middle blocking block 51 is provided between every two sliders 7 arranged opposite to each other in the left and right directions, and a middle blocking block 51 is provided between each two sliders 7 arranged opposite to each other in the left and right directions. An end stop block 52 is provided on the outer side of every two sliders 7, the middle stop block 51 and the end stop block 52 are fixedly connected to the base 5, a first elastic member 8 is provided between the middle stop block 51 and the adjacent slider 7, and a second elastic member 9 is provided between the end stop block 52 and the adjacent slider 7. Preferably, a guide column 54 is fixedly connected between the end stop block 52 and the adjacent middle stop block 51, the slider 7 is slidably connected to the guide column 54, the first elastic member 8 and the second elastic member 9 are both compression springs, and the first elastic member 8 and the second elastic member 9 are both sleeved on the relative guide columns 54, and two sleeves 53 are longitudinally arranged on the top of the base 5, and a limiting column 12 is provided at the bottom of the test bench 1 corresponding to the sleeve 53, and the limiting column 12 is slidably connected in the sleeve 53, and a lifting mechanism for lifting the impact table 3 is provided on the base 5.

[0016] In this embodiment, the lifting mechanism includes a screw module 10 and a support arm 101. The screw module 10 is longitudinally arranged on the rear side of the base 5. Two support arms 101 are horizontally installed on the slide of the screw module 10. The support arms 101 are arranged forward and extend to the bottom of the impact platform 3.

[0017] In actual use, the screw module 10 is used to lift the impact platform 3 to a suitable height, and then the brake member 4 is used to fix the impact platform 3. The slide of the screw module 10 is then lowered to the bottom to avoid interference with the fall of the impact platform 3. The brake member 4 is then released to allow the impact platform 3 to fall freely. When the impact platform 3 falls onto the waveform generator 21 and causes the test bench 1 to shake up and down, the downward impact force of the test bench 1 will be converted into a lateral impact through the connecting rod 6 and the slider 7. The first elastic member 8 and the second elastic member 9 can effectively mitigate the lateral impact, greatly reducing the vibration caused to the ground.

[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical collision tester, comprising a test bench (1), an anvil (2) is arranged in the middle of the test bench (1), a waveform generator (21) is installed on the top of the anvil (2), two guide rods (11) are arranged longitudinally on the test bench (1), an impact table (3) is slidably installed on the two guide rods (11), a brake member (4) is arranged on the impact table (3), and the brake member (4) is in contact with the guide rods (11), characterized in that: A base (5) is movably arranged below the test bench (1), and a plurality of connecting rods (6) are hingedly connected on both left and right sides of the bottom of the test bench (1). Two connecting rods (6) arranged opposite to each other in the left and right directions are arranged in an "eight" shape. A slider (7) is hingedly connected to the bottom of each connecting rod (6), and the slider (7) is slidably connected to the base (5) in the left and right directions. A middle blocking block (51) is arranged between each two sliders (7) arranged opposite to each other in the left and right directions, and an end blocking block (52) is arranged on the outer sides of each two sliders (7) arranged opposite to each other in the left and right directions. The block (51) and the end blocking block (52) are both fixedly connected to the base (5), a first elastic member (8) is arranged between the middle blocking block (51) and the adjacent sliding block (7), a second elastic member (9) is arranged between the end blocking block (52) and the adjacent sliding block (7), a plurality of sleeves (53) are longitudinally arranged on the top of the base (5), a limiting column (12) is arranged at the bottom of the test bench (1) corresponding to the sleeve (53), the limiting column (12) is slidably connected in the sleeve (53), and a lifting mechanism for lifting the impact platform (3) is provided on the base (5).

2. A mechanical collision testing machine according to claim 1, characterized in that: A guide column (54) is fixedly connected between the end blocking block (52) and the adjacent middle blocking block (51), and the sliding block (7) is slidably connected to the guide column (54).

3. A mechanical collision testing machine according to claim 2, characterized in that: The first elastic member (8) and the second elastic member (9) are both compression springs, and the first elastic member (8) and the second elastic member (9) are both sleeved on opposite guide posts (54).

4. A mechanical collision testing machine according to claim 1, characterized in that: The lifting mechanism comprises a screw module (10) and a support arm (101), wherein the screw module (10) is longitudinally arranged on a base (5), and a plurality of support arms (101) are transversely mounted on a slide table of the screw module (10), and the support arms (101) extend to the bottom of the impact table (3).

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