A vibration test bench for shock absorption

Abstract

The utility model relates to the technical field of shock absorbing devices, specifically a vibration test bench with shock absorption, comprising a supporting mechanism, a shock absorbing mechanism and a vibration mechanism, wherein the shock absorbing mechanism is located in the middle of the supporting mechanism, the vibration mechanism is located at the top of the supporting mechanism, the supporting mechanism comprises legs, a supporting frame is fixedly installed on the top of the legs, a bracket is fixedly installed on the lower side of the legs, and an adjustment pad is fixedly installed on the bottom of the legs. The utility model can offset the conducted vibration through the damping generated by the extension and retraction of the telescopic rod through the telescopic column, thereby greatly reducing the vibration conduction, thereby achieving the purpose of shock absorption, and the supporting height of each leg can be adjusted by rotating the adjustment pad, thereby avoiding the situation in which the test bench as a whole shakes due to unstable support during vibration and damaging the ground and the test bench.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbing devices, in particular to a shock absorbing vibration test bench. Background Art

[0002] The vibration tester simulates the various environments encountered by the product during the manufacturing, assembly, transportation and use stages to determine whether the product can withstand environmental vibration.

[0003] As disclosed in the authorization announcement number CN214952059U, a vibration test bench support device with a shock-absorbing effect is disclosed, which relates to the technical field of vibration test bench support devices. In order to solve the problem that the elasticity of the internal buffer spring of the existing vibration test bench support device gradually decreases with the increase of use time under long-term vibration use, resulting in a gradual decrease in its anti-seismic performance, thereby affecting the service life of the vibration test bench and inconvenient to replace aging parts. The upper end of the support box is equipped with a vibration test bench, and the lower end of the vibration test bench is equipped with a limit shaft, and the limit shaft is connected to the support box through a card slot. The upper ends of both sides of the support box are equipped with side spring groups, and the side spring groups are fixedly connected to the support box. The upper and lower ends of the side spring group are equipped with connecting clamps, and the connecting clamps are fixedly connected to the side spring groups.

[0004] However, the shock-absorbing vibration test bench mentioned in the patent uses springs for buffering and shock absorption. When the vibration force is transmitted, the spring will weaken the vibration transmission, but the vibration force will also drive the spring to rebound. Therefore, the shock-absorbing effect of the spring alone is not obvious. At the same time, the current existing test bench support structure cannot be fine-tuned, which may cause the test bench to swing randomly when placed on the ground. During the experiment, the vibration force will cause the entire test bench to shake, thereby damaging the ground and the test bench. Utility Model Content

[0005] The utility model aims to provide a vibration test bench with shock absorption to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A shock-absorbing vibration test bench comprises a supporting mechanism, a shock-absorbing mechanism and a vibration mechanism, wherein the shock-absorbing mechanism is located in the middle of the supporting mechanism, the vibration mechanism is located at the top of the supporting mechanism, the supporting mechanism comprises a leg, a supporting frame is fixedly installed on the top of the leg, a bracket is fixedly installed on the underside of the leg, and an adjusting pad is fixedly installed on the bottom of the leg.

[0008] Preferably, the shock absorbing mechanism includes a shock absorbing platform, a lower mounting plate is fixedly installed around the top of the shock absorbing platform, a shock absorbing spring is fixedly installed on the top of the lower mounting plate, an upper mounting plate is fixedly installed on the top of the shock absorbing spring, the upper mounting plate is fixedly installed on the bottom of the support frame, a telescopic column is movably installed inside the shock absorbing spring, and a vibration spring is fixedly installed in the middle of the top of the shock absorbing platform.

[0009] Preferably, the vibration mechanism includes a vibration table, a first adjusting screw, a second adjusting screw and a third adjusting screw, the bottom end of the vibration table is fixedly mounted on the top end of the vibration spring, a vibrator is fixedly mounted in the middle of the vibration table, and a support rod is fixedly mounted on the top end of the vibration table.

[0010] Preferably, a first sliding rod is fixedly installed on the top of the support rod, a second sliding rod is movably installed on the top of the first sliding rod, a first sliding groove is opened on the top of the first sliding rod, a first slider is movably installed in the first sliding groove, and the first adjusting screw passes through the second sliding rod and is movably installed in the first slider.

[0011] Preferably, a clamping block is movably installed at the top of the second sliding rod, a clamping plate is fixedly installed at the front end of the clamping block, a second sliding groove is opened at the top of the second sliding rod, a second sliding block is movably installed in the second sliding groove, and the second adjusting screw passes through the top of the clamping block and is movably installed in the second sliding block.

[0012] Preferably, a third slide groove is provided at the outer end of the second sliding rod, a third slide block is movably installed in the third slide groove, and the third adjusting screw penetrates the front end of the clamp block and is movably installed in the third slide block. Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This vibration test bench with shock absorption can softly support the shock absorption platform through shock absorption springs, and at the same time weaken the vibration transmission between the shock absorption platform and the support frame, and the transmitted vibration can be offset by the damping generated by the telescopic rod through the telescopic column, thereby greatly reducing the vibration transmission and achieving the purpose of shock absorption.

[0014] 2. In a vibration test bench with shock absorption, unstable support may cause the whole bench to shake during the vibration test. The support height of each leg may be adjusted by rotating the adjustment pad, thereby avoiding the situation in which the whole bench shakes and damages the ground and the bench due to unstable support during vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the shock absorbing mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the vibration mechanism of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the second sliding rod of the utility model.

[0019] In the figure: 101, supporting mechanism; 102, shock absorbing mechanism; 103, vibrating mechanism; 104, supporting leg; 105, supporting frame; 106, bracket; 201, adjusting pad; 202, shock absorbing platform; 203, lower mounting plate; 204, shock absorbing spring; 205, upper mounting plate; 206, telescopic column; 301, vibration spring; 302, vibrating platform; 303, vibrator; 304, supporting rod; 305, first sliding rod; 306, second sliding rod; 401, first sliding groove; 402, first sliding block; 403, first adjusting screw; 404, clamping block; 405, clamping plate; 406, second sliding groove; 501, second sliding block; 502, second adjusting screw; 503, third sliding groove; 504, third sliding block; 505, third adjusting screw. DETAILED DESCRIPTION

[0020] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0022] A vibration test bench with shock absorption includes a support mechanism 101, a shock absorption mechanism 102 and a vibration mechanism 103, wherein the shock absorption mechanism 102 is located in the middle of the support mechanism 101, and the vibration mechanism 103 is located at the top of the support mechanism 101. The support mechanism 101 includes a support leg 104, a support frame 105 is fixedly installed on the top of the support leg 104, a bracket 106 is fixedly installed on the lower side of the support leg 104, and an adjustment pad 201 is fixedly installed on the bottom end of the support leg 104.

[0023] Through the above scheme, the legs 104, support frame 105 and bracket 106 provide stable support for the whole, and the support height of each leg 104 can be adjusted by rotating the adjustment pad 201, thereby avoiding the situation where the test bench is shaken as a whole due to unstable support during vibration and damages the ground and the test bench.

[0024] In this embodiment, preferably, the shock absorbing mechanism 102 includes a shock absorbing platform 202, a lower mounting plate 203 is fixedly installed around the top of the shock absorbing platform 202, a shock absorbing spring 204 is fixedly installed on the top of the lower mounting plate 203, an upper mounting plate 205 is fixedly installed on the top of the shock absorbing spring 204, the upper mounting plate 205 is fixedly installed on the bottom of the support frame 105, a telescopic column 206 is movably installed inside the shock absorbing spring 204, and a vibration spring 301 is fixedly installed in the middle of the top of the shock absorbing platform 202.

[0025] Through the above scheme, the upper and lower mounting plates 203 are used to reduce the damage to the support frame 105 and the shock absorbing platform 202 when the vibration force is transmitted through the shock absorbing springs 204. The shock absorbing platform 202 can be softly supported by the shock absorbing springs 204, and the vibration transmission between the shock absorbing platform 202 and the support frame 105 is weakened while supporting it. The transmitted vibration can be offset by the damping generated by the extension and retraction of the telescopic rod through the telescopic column 206, thereby greatly reducing the vibration transmission and achieving the purpose of shock absorption.

[0026] In this embodiment, preferably, the vibration mechanism 103 includes a vibration table 302, a first adjusting screw 403, a second adjusting screw 502 and a third adjusting screw 505, the bottom end of the vibration table 302 is fixedly installed on the top of the vibration spring 301, a vibrator 303 is fixedly installed in the middle of the vibration table 302, and a support rod 304 is fixedly installed on the top of the vibration table 302.

[0027] Through the above solution, the vibrator 303 drives the vibration table 302 to generate a vibration force, so that the vibration table 302 can vibrate up and down and remain stable through the resilience generated by the vibration spring 301.

[0028] In this embodiment, preferably, a first sliding rod 305 is fixedly installed on the top of the support rod 304, a second sliding rod 306 is movably installed on the top of the first sliding rod 305, a first sliding groove 401 is opened on the top of the first sliding rod 305, a first slider 402 is movably installed in the first sliding groove 401, and the first adjusting screw 403 passes through the second sliding rod 306 and is movably installed in the first slider 402.

[0029] Through the above scheme, by adjusting the first adjusting screw 403, the second sliding rod 306 slides in the first sliding groove 401 through the first slider 402, so that the longitudinal distance between the second sliding rods 306 can be adjusted, thereby adjusting the longitudinal distance between the clamping plates 405.

[0030] In this embodiment, preferably, a clamp block 404 is movably installed on the top of the second sliding rod 306, a clamp plate 405 is fixedly installed on the front end of the clamp block 404, a second sliding groove 406 is opened on the top of the second sliding rod 306, a second slider 501 is movably installed in the second sliding groove 406, and the second adjusting screw 502 passes through the top of the clamp block 404 and is movably installed in the second slider 501.

[0031] According to the above solution, by adjusting the second adjusting screw 502 , the clamping block 404 slides in the second sliding groove 406 through the second sliding block 501 , so that the longitudinal distance between the clamping plates 405 can be adjusted.

[0032] In this embodiment, preferably, a third sliding groove 503 is opened at the outer end of the second sliding rod 306, a third sliding block 504 is movably installed in the third sliding groove 503, and the third adjusting screw 505 passes through the front end of the clamping block 404 and is movably installed in the third sliding block 504.

[0033] Through the above solution, by adjusting the third adjusting screw 505 , the clamping block 404 slides in the third sliding groove 503 through the third sliding block 504 , so that the longitudinal distance between the clamping plates 405 can be adjusted.

[0034] When using a vibration test bench of the present embodiment, the user can adjust the first adjusting screw 403 according to the size of the test object according to the user's needs, so that the second sliding rod 306 slides in the first sliding groove 401 through the first sliding block 402, and then adjust the second adjusting screw 502 and the third adjusting screw 505 so that the clamping block 404 slides in the second sliding groove 406 and the third sliding groove 503 through the second sliding block 501 and the third sliding block 504, so that the lateral distance and longitudinal distance of the clamping plate 405 are adjusted. After the adjustment, the test object is placed on the clamping plate 405, and then the first adjusting screw 403, the second adjusting screw 502 and the third adjusting screw 505 are tightened to fix the second sliding rod 306 and the clamping block 404, so that the test object is clamped and fixed. When the vibrator 303 is started, the vibration table 302 is driven to generate a vibration force, so that the vibration table 302 rebounds up and down on the spring, thereby causing the experimental object to vibrate. The vibration generated by the spring is transmitted to the shock-absorbing spring 204 through the shock-absorbing table 202. The shock-absorbing spring 204 provides soft support to weaken the vibration force transmitted to the support frame 105. At the same time, the telescopic rod is extended and retracted up and down to generate damping, which offsets the transmitted vibration and greatly reduces the vibration force transmitted to the support frame 105, thereby achieving the purpose of shock absorption. During the vibration test, unstable support will cause the whole to shake. By rotating the adjustment pad 201, the support height of each leg 104 can be adjusted, thereby avoiding the situation where the test bench shakes as a whole due to unstable support during vibration, thereby avoiding damage to the ground and the test bench.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibration test bench with shock absorption, characterized in that: The invention comprises a supporting mechanism (101), a shock absorbing mechanism (102) and a vibrating mechanism (103), wherein the shock absorbing mechanism (102) is located in the middle of the supporting mechanism (101), and the vibrating mechanism (103) is located at the top of the supporting mechanism (101); the supporting mechanism (101) comprises a supporting leg (104), a supporting frame (105) is fixedly mounted on the top of the supporting leg (104), a bracket (106) is fixedly mounted on the bottom of the supporting leg (104), and an adjusting pad (201) is fixedly mounted on the bottom of the supporting leg (104).

2. A vibration test bench for shock absorption according to claim 1, characterized in that: The shock absorbing mechanism (102) comprises a shock absorbing platform (202), a lower mounting plate (203) being fixedly mounted around the top of the shock absorbing platform (202), a shock absorbing spring (204) being fixedly mounted on the top of the lower mounting plate (203), an upper mounting plate (205) being fixedly mounted on the top of the shock absorbing spring (204), the upper mounting plate (205) being fixedly mounted on the bottom of the support frame (105), a telescopic column (206) being movably mounted inside the shock absorbing spring (204), and a vibration spring (301) being fixedly mounted in the middle of the top of the shock absorbing platform (202).

3. A vibration test bench for shock absorption according to claim 1, characterized in that: The vibration mechanism (103) comprises a vibration table (302), a first adjusting screw (403), a second adjusting screw (502) and a third adjusting screw (505); the bottom end of the vibration table (302) is fixedly mounted on the top end of the vibration spring (301); a vibrator (303) is fixedly mounted in the middle of the vibration table (302); and a support rod (304) is fixedly mounted on the top end of the vibration table (302).

4. A vibration test bench for shock absorption according to claim 3, characterized in that: A first sliding rod (305) is fixedly installed on the top of the support rod (304), a second sliding rod (306) is movably installed on the top of the first sliding rod (305), a first sliding groove (401) is opened on the top of the first sliding rod (305), a first sliding block (402) is movably installed in the first sliding groove (401), and the first adjusting screw (403) passes through the second sliding rod (306) and is movably installed in the first sliding block (402).

5. A vibration test bench for shock absorption according to claim 4, characterized in that: A clamping block (404) is movably mounted on the top of the second sliding rod (306), a clamping plate (405) is fixedly mounted on the front end of the clamping block (404), a second sliding groove (406) is provided on the top of the second sliding rod (306), a second sliding block (501) is movably mounted in the second sliding groove (406), and the second adjusting screw (502) passes through the top of the clamping block (404) and is movably mounted in the second sliding block (501).

6. A vibration test bench for shock absorption according to claim 5, characterized in that: A third sliding groove (503) is provided at the outer end of the second sliding rod (306), a third sliding block (504) is movably installed in the third sliding groove (503), and the third adjusting screw (505) passes through the front end of the clamping block (404) and is movably installed in the third sliding block (504).

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