Generator with adjustable half-sine wave width

Abstract

The generator comprises a base, an installation sleeve is arranged at the upper end of the base, a supporting column is installed at the center in the installation sleeve, and an installation structure is adjusted at the upper end of the base. The adjusting mounting structure comprises an adjusting screw sleeve, an elastic mounting assembly and buffer rubber; the utility model relates to the technical field of half-sine wave generators, and provides a generator with adjustable half-sine wave width, which has adjustable pulse width, realizes that one device is suitable for impact test requirements of various products, and has the advantages and effects that the device is simple in structure, convenient and fast to adjust and high in practicability. The half-sine wave generator is adjustable in pulse width, and can be adjusted into various pulse widths to meet the test requirements of different products.

Description

Technical Field

[0001] The utility model relates to the technical field of half-sine wave generators, in particular to a generator with adjustable half-sine wave width. Background Art

[0002] Many products may be subjected to different degrees of impact during transportation, loading and unloading or use, so the impact resistance of the product is particularly important. The acceleration shock test bench is used to simulate the dynamic environment of the product during the impact process to test its functional reliability and structural integrity. It is an essential equipment for impact testing. The half-sine wave generator is a key component. The half-sine wave is the basic waveform for impact testing. Its main indicators are impact acceleration and pulse width. By changing the impact acceleration and pulse width to conduct impact tests of different indicators on different products, the impact resistance of the product structure when the product is impacted during transportation, loading and unloading or use can be evaluated. By correctly evaluating the impact resistance of the product, the reliability of the product can be effectively improved.

[0003] The current acceleration shock test bench usually uses a fixed half-sine wave generator (rubber, felt and other elastic materials) to complete a single indicator test. To conduct different indicator tests, it is necessary to replace different waveform generators. Because their pulse width cannot be adjusted, it is difficult to accurately debug to the pulse width required by the test, and the efficiency is extremely low. Therefore, it is crucial to design a half-sine wave generator that can meet the impact test requirements of different products and has an adjustable pulse width. Utility Model Content

[0004] To achieve the above purpose, the utility model is implemented by the following technical solutions: a generator with adjustable half-sine wave width, comprising a base, a mounting sleeve is provided at the upper end of the base, a support is installed at the center of the mounting sleeve, and an adjustable mounting structure is provided at the upper end of the base;

[0005] The adjusting and installing structure comprises: an adjusting screw sleeve, an elastic installing component and a buffer rubber;

[0006] The adjusting screw sleeve is movably embedded in the installation sleeve, the elastic installation component is embedded in the adjusting screw sleeve, and the buffer rubber is movably embedded in the elastic installation component.

[0007] Preferably, the elastic mounting assembly comprises: an elastic cone sleeve, three first openings and three second openings;

[0008] The elastic cone sleeve is movably embedded in the installation sleeve, the three first openings are all opened at the upper end of the elastic cone sleeve, and the three second openings are all opened at the lower end of the elastic cone sleeve.

[0009] Preferably, the buffer rubber is circular in shape.

[0010] Preferably, an internal thread is processed on the inner wall of the installation sleeve.

[0011] Preferably, the outer wall of the adjusting screw sleeve is processed with external threads.

[0012] Beneficial Effects

[0013] The utility model provides a generator with adjustable half-sine wave width, which has the following beneficial effects: The utility model provides a generator with adjustable half-sine wave width, whose pulse width is adjustable, so that one device can be applied to impact test requirements of various products. Advantages and effects: The device has a simple structure and is easy and quick to adjust. It is a half-sine wave generator with adjustable pulse width, which can be adjusted to a variety of pulse widths to meet the test requirements of different products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main stereoscopic structure of a generator with adjustable half-sine wave width described in the utility model.

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of a generator with adjustable half-sine wave width described in the utility model.

[0016] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of an elastic cone sleeve of a generator with adjustable half-sine wave width.

[0017] In the figure: 1, base, 2, mounting sleeve, 3, support, 4, adjusting screw sleeve, 5, buffer rubber, 6, elastic cone sleeve, 7, first opening, 8, second opening. DETAILED DESCRIPTION

[0018] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0019] See also Figure 1-3 , Embodiment: A generator with adjustable half-sine wave width, comprising a base 1, a mounting sleeve 2 is provided at the upper end of the base 1, a support 3 is installed at the center of the mounting sleeve 2, and an adjusting mounting structure is provided at the upper end of the base 1;

[0020] The adjustment and installation structure comprises: an adjustment screw sleeve 4, an elastic installation component and a buffer rubber 5;

[0021] The adjusting screw sleeve 4 is movably embedded in the installation sleeve 2, the elastic installation component is embedded in the adjusting screw sleeve 4, and the buffer rubber 5 is movably embedded in the elastic installation component.

[0022] The elastic mounting assembly comprises: an elastic cone sleeve 6, three first openings 7 and three second openings 8;

[0023] The elastic cone sleeve 6 is movably embedded in the installation sleeve 2 , the three first openings 7 are all opened at the upper end of the elastic cone sleeve 6 , and the three second openings 8 are all opened at the lower end of the elastic cone sleeve 6 .

[0024] It should be noted that when in use, first pull out the elastic mounting assembly, and adjust the height of the screw sleeve 4 in the mounting sleeve 2 by twisting. When the adjustment of the screw sleeve 4 is completed, the buffer rubber 5 is embedded in the adjusting screw sleeve 4 and placed on the upper end of the pillar 3. The height of the adjusting screw sleeve 4 is adjusted so that the upper end of the buffer rubber 5 is exposed to a specified length, and then the elastic mounting assembly is embedded in the adjusting screw sleeve 4. The bottom end of the elastic cone sleeve 6 is affected by the taper of the inner wall of the adjusting screw sleeve 4, so that the second opening 8 at the bottom end of the elastic cone sleeve 6 is compressed, and the elastic cone sleeve 6 is continuously lowered. The bottom end of the buffer rubber 5 and the upper end of the pillar 3 are squeezed and fixed, and the buffer rubber 5 is stably clamped to ensure that the lower part of the buffer rubber 5 is always constrained by the elastic cone sleeve 6 during the impact process. The height of the adjusting screw sleeve 4 in the installation sleeve 2 can be adjusted according to different usage requirements. By adjusting the height of the adjusting screw sleeve 4, the leakage length of the buffer rubber 5 is changed, and the pulse width of the half-sine wave generated by the impact of the buffer rubber 5 is changed. When in use, the half-sine wave of acceleration relative to time is generated by the impact of the buffer rubber 5;

[0025] The half-sine wave of acceleration relative to time refers to the fluctuation of acceleration over time that is similar to a half-sine waveform. In physics and engineering, this waveform can describe the acceleration changes of certain vibrations, fluctuations, or periodic motions. The mathematical equation of the half-sine wave can be expressed as:

[0026] a(t)=A*sin(ωt)

[0027] Where a(t) is the acceleration at time t, A is the amplitude, and ω is the angular frequency;

[0028] The characteristic of a half-sine wave is that within one cycle, the change in acceleration shows a trend of gradually increasing from zero to a maximum value, and then gradually decreasing back to zero. Unlike a complete sine wave, a half-sine wave only has a half-cycle of fluctuation. It should be noted that the specific acceleration waveform depends on the values ​​of amplitude A and angular frequency ω. According to the specific application and the motion characteristics of the object, these parameters can be adjusted to obtain the required half-sine waveform. In short, the half-sine wave of acceleration relative to time is used to describe the fluctuation of acceleration over time, and has characteristics similar to a half-sine waveform.

[0029] In a specific implementation process, the shape of the buffer rubber 5 is circular.

[0030] In the specific implementation process, an internal thread is processed on the inner wall of the installation sleeve 2.

[0031] In the specific implementation process, the outer wall of the adjusting screw sleeve 4 is processed with external threads.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A generator with adjustable half-sine wave width, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a mounting sleeve (2), a support column (3) is installed at the center of the mounting sleeve (2), and the upper end of the base (1) is provided with an adjustable mounting structure; The adjustment installation structure comprises: an adjustment screw sleeve (4), an elastic installation component and a buffer rubber (5); The adjusting screw sleeve (4) is movably embedded in the mounting sleeve (2), the elastic mounting assembly is embedded in the adjusting screw sleeve (4), and the buffer rubber (5) is movably embedded in the elastic mounting assembly.

2. The generator with adjustable half-sine wave width according to claim 1, characterized in that: The elastic mounting assembly comprises: an elastic cone sleeve (6), three first openings (7) and three second openings (8); The elastic cone sleeve (6) is movably embedded in the installation sleeve (2), the three first openings (7) are all opened at the upper end of the elastic cone sleeve (6), and the three second openings (8) are all opened at the lower end of the elastic cone sleeve (6).

3. The generator with adjustable half-sine wave width according to claim 1, characterized in that: The buffer rubber (5) is circular in shape.

4. The generator with adjustable half-sine wave width according to claim 1, characterized in that: The inner wall of the installation sleeve (2) is processed with an internal thread.

5. The generator with adjustable half-sine wave width according to claim 1, characterized in that: The outer wall of the adjusting screw sleeve (4) is processed with external threads.

Images