CN218470126U - Noise-reduction vibration table - Google Patents

Abstract

The utility model discloses a vibration platform of making an uproar falls uses in electric vibration test system field, and its technical scheme main points are: a noise reduction vibration table comprises a vibration table body and a vibration fan for driving the vibration table body to vibrate, wherein a vibration plate for driving a test piece to vibrate is arranged at one end, far away from the ground, of the vibration table body; a first noise reduction assembly for absorbing noise generated by the vibrating table body so as to realize primary noise reduction is arranged around the vibrating table body, and a second noise reduction assembly for absorbing noise not absorbed by the first noise reduction assembly and further reducing the noise overflow amount is fixedly arranged around the vibrating table body; has the technical effects that: the sound insulation and noise reduction effects are good, the structure is simple, and the use cost is low.

Description

Noise-reduction vibration table

Technical Field

The utility model relates to an electronic vibration test system field, in particular to shaking table of making an uproar falls.

Background

In the manufacturing process of some elements or components, the produced parts need to be sampled and placed on a vibration table of an electric vibration device and a real vibration environment is simulated through vibration, so that the vibration resistance of the elements or components and the vibration resistance of the product structure are tested, and the device is widely applied to the research, development and manufacturing processes of various industries such as electronics, electromechanics, photoelectricity, toys and the like.

But because the electrodynamic vibration test provides the vibration environment, can't avoid producing the noise, long-term work can lead to tester's hearing impaired under the environment of high noise, thereby it is extremely high again to establish the cost that silence room or amortization room realized isolated vibration test region around the test system, is unfavorable for large-scale using widely.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vibration platform of making an uproar falls, its advantage is that the noise reduction effect that gives sound insulation is good, simple structure, and use cost is low.

The above technical purpose of the present invention can be achieved by the following technical solutions: a noise reduction vibration table comprises a vibration table body and a vibration fan for driving the vibration table body to vibrate, wherein a vibration plate for driving a test piece to vibrate is arranged at one end, away from the ground, of the vibration table body; the vibration table is characterized in that a first noise reduction assembly used for absorbing noise generated by the vibration table to realize primary noise reduction is arranged around the vibration table, and a second noise reduction assembly used for absorbing noise not absorbed by the first noise reduction assembly to further reduce noise overflow is fixedly arranged around the vibration table.

Through the technical scheme, when the parts are tested, the vibration table body can generate noise due to the movement of each part in the vibration table body, the first noise reduction assembly is arranged around the vibration table body and can absorb the noise generated in the vibration table body, so that the primary noise reduction of the vibration table body is realized, the transmission of the noise is blocked from the source, but the noise generated by the whole test equipment is difficult to be isolated only by the first noise reduction assembly, the intensity of the noise overflowing from the first noise reduction assembly is still very high, and meanwhile, when the test piece is tested, the vibration table body can drive the vibration plate to vibrate, and the first subassembly of making an uproar of falling can't absorb the noise that the vibration board vibration produced completely cuts off, consequently it falls the subassembly and is used for absorbing the first subassembly of making an uproar of falling to fixedly set up the second around the shaking table body and fall the subassembly and not absorb, the noise that overflows outside the first subassembly of making an uproar of falling, thereby realize further falling and make an uproar, the noise reduction effect has been promoted, simultaneously because the second falls the subassembly of making an uproar and falls the dimensional range of the subassembly of making an uproar according to the second that the size of vibration board and shaking table body confirmed, thereby an independent test area has been constituted, need not to establish the room that gives sound insulation that the cost is expensive, only need establish the part that gives sound insulation according to the size of shaking table body can, moreover, the steam generator is simple in structure, low in use cost.

The utility model discloses further set up to: the first noise reduction assembly comprises an upper cover ring and a lower cover ring which are fixedly connected to two ends of the vibrating table body in the vertical direction and play a role in protection, and a first sound absorption plate used for absorbing noise generated by the vibrating table body is arranged in the upper cover ring and the lower cover ring.

Through above-mentioned technical scheme, cover circle and lower cover circle in the both ends fixed connection of shaking table body along vertical direction to avoid when the shaking table body moves, impurity falls into the normal operating that influences the shaking table body in the shaking table body, sets up first abatvoix in upper cover circle and lower cover circle, when the shaking table body moves, sets up the noise that can directly absorb noise source department at the first abatvoix that covers in enclosing from top to bottom.

The utility model discloses further set up to: the first sound absorption plate is made of a polyester fiber material.

Through the technical scheme, the first sound absorption board is made of the polyester fiber material, the polyester fiber sound absorption board is also called glass wool, the sound absorption board is widely applied to engineering noise reduction, and has a good relieving effect on high-frequency and high-decibel noise, so that the first sound absorption board made of the polyester fiber material is used for noise reduction at a sound source, and the noise reduction effect is favorably improved.

The utility model discloses further set up to: the second noise reduction assembly is fixedly arranged on the ground and used for shielding the vibration table body and the shield of the vibration plate, an independent test area is formed in the shield, a containing cavity used for containing a sound insulation material is formed in the shield, and a second sound absorption plate used for further absorbing noise is arranged in the containing cavity.

Through above-mentioned technical scheme, fixed the setting in subaerial for shield the shade of shaking table body and vibration board, the shade can completely cut off vibration test subassembly and experimenter, make inside shaking table body and vibration board constitute an independent test area, set up the chamber that holds that is used for placing sound insulation material in the shade, and set up the second abatvoix holding the intracavity, the second abatvoix is used for absorbing the first noise reduction subassembly and does not have the noise of having absorbed, avoid the noise to spill over outside the shade and cause the influence to the experimenter.

The utility model discloses further set up to: the second sound-absorbing plate is made of wood wool sound-absorbing plates.

Through above-mentioned technical scheme, set up the second abatvoix and use the wood wool abatvoix material to make, the wood wool abatvoix possesses good noise absorption effect on the one hand, is favorable to promoting noise reduction effect, and on the other hand, wood wool abatvoix price is lower, is favorable to reducing use cost.

The utility model discloses further set up to: the vibration fan set up in the subassembly of making an uproar is fallen to the second outside and keep away from the subassembly setting of making an uproar falls in the second, vibration fan with connect based on the transmission shaft between the vibration stage body, the cover is established around the vibration fan and is connected with and is used for reducing the fan sound-proof housing that the vibration fan dispersed noise in the air, be equipped with the third abatvoix in the fan sound-proof housing.

Through the technical scheme, fall the subassembly setting of making an uproar and keep away from the second with the vibrating fan setting outside the subassembly is fallen to the second, be connected based on the transmission shaft between vibrating fan and the vibration stage body, because vibrating fan can produce a large amount of noises usually when the operation, if be close to the vibration stage body setting with the vibrating fan, the noise that two noise sources produced superposes easily, thereby reduce the noise reduction effect, it keeps away from the vibration stage body to set up vibrating fan, thereby avoid producing the noise stack, the cover is established around vibrating fan and is connected the fan sound-proof housing and set up the third acoustic celotex board in the fan sound-proof housing, thereby reduce the noise that vibrating fan dispersed in the air.

The utility model discloses further set up to: the third sound-absorbing board is made of a sound-proof felt material.

Through above-mentioned technical scheme, set up the third abatvoix and use the deadening felt material, the deadening felt material possesses good syllable-dividing effect on the one hand, is favorable to promoting noise reduction effect, on the other hand can produce a large amount of heats because vibration fan when the operation, if can't give out the heat and cause the damage to vibration fan very probably, the deadening felt possesses good air permeability to can in time give out the heat that the vibration fan produced, avoid causing the damage to vibration fan.

To sum up, the utility model discloses following beneficial effect has:

1. the first noise reduction assembly is arranged around the vibrating table body and can absorb noise generated in the vibrating table body, so that primary noise reduction of the vibrating table body is realized, and noise transmission is blocked from the source;

2. the second noise reduction assembly is fixedly arranged around the vibrating table body and used for further noise reduction, the noise reduction effect is improved, meanwhile, the second noise reduction assembly is the size range of the second noise reduction assembly determined according to the sizes of the vibrating plate and the vibrating table body, so that an independent test area is formed, a sound insulation room with high manufacturing cost does not need to be established, only a sound insulation part needs to be established according to the size of the vibrating table body, the structure is simple, and the use cost is low.

Drawings

FIG. 1 is a front view of the overall structure of the present embodiment;

fig. 2 is a left side view of the entire structure of the present embodiment.

Reference numerals: 1. a vibrating table body; 2. a vibrating plate; 3. testing the piece; 4. vibrating the fan; 5. a first noise reduction assembly; 51. an upper cover ring; 52. a lower cover ring; 53. a first sound-absorbing panel; 6. a second noise reduction assembly; 61. masking; 62. an accommodating chamber; 63. a second sound-absorbing panel; 7. a fan sound-proof housing; 71. a third sound-absorbing panel; 8. a drive shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

refer to fig. 1 and fig. 2, a shaking table of making an uproar falls, including the fixed shaking table body 1 that sets up subaerial, the one end of keeping away from ground at shaking table body 1 is equipped with the vibration board 2 that is used for driving test piece 3 vibration based on a plurality of connecting rod connections, fixedly connected with test piece 3 on testing the board, be equipped with the vibrating fan 4 that is used for driving shaking table body 1 vibration in the position of keeping away from shaking table body 1, thereby be equipped with the first subassembly 5 of making an uproar that falls that is used for absorbing the noise that shaking table body 1 produced on shaking table body 1 and realize tentatively falling, it is used for absorbing the first unabsorbed noise of subassembly 5 of making an uproar to fall to fix around shaking table body 1 simultaneously, the subassembly 6 of making an uproar falls of the second that further reduces the excessive volume of noise, it is connected with to be used for reducing the fan 4 fan sound-proof enclosure 7 of fan that disperses the noise in the air to establish around shaking fan 4 simultaneously.

Referring to fig. 1, towards the upper cover ring 51 and the lower cover ring 52 at both ends, the upper cover ring 52 and the lower cover ring 52 are used for preventing impurities from falling into the vibrating table 1 to affect the normal operation of the vibrating table 1 when the vibrating table 1 operates, and at the same time, can play a certain guiding role, a first sound absorbing plate 53 for absorbing noise generated by the vibrating table 1 is arranged in the upper cover ring 51 and the lower cover ring 52, in this embodiment, the first sound absorbing plate 53 is made of a polyester fiber material, and has a good effect of alleviating high-frequency and high-decibel noise, but is not limited to a polyester fiber material, and a polyvinyl chloride foam plate, a rock wool plate and other materials can be used to make the first sound absorbing plate 53 for noise reduction at the sound source.

Referring to fig. 1, specifically, second noise reduction assembly 6 is including fixed setting in subaerial, a shade 61 for shielding shaking table body 1 and vibration board 2, shade 61 can completely cut off vibration test assembly and tester, make inside shaking table body 1 and vibration board 2 constitute an independent test area, be equipped with the chamber 62 that holds that is used for placing sound insulation material in the shade 61, it is equipped with the second abatvoix 63 that is used for further absorbing the noise to hold the intracavity 62, second abatvoix 63 is used for absorbing the noise that first noise reduction assembly 5 did not have absorbed, avoid the noise to spill over from shade 61 and cause the influence to the tester, in this embodiment, second abatvoix 63 uses wood wool abatvoix to make, can reduce use cost when guaranteeing noise reduction efficiency, second abatvoix 63 is not limited to using wood wool abatvoix, can realize further making an uproar equally holding interior suction of chamber 62 or adding materials such as honeycomb panel.

Referring to fig. 2, specifically, be connected based on transmission shaft 8 between vibrating fan 4 and the vibration stage body 1, thereby vibrating fan 4 will move and drive vibration board 2 vibration based on transmission shaft 8 vibration stage body 1, be equipped with third abatvoix 71 in the fan sound-proof housing 7, third abatvoix 71 uses the sound-proof felt material to make, can possess good air permeability when guaranteeing good syllable-dividing effect, is favorable to giving off the heat that vibrating fan 4 produced to the air in.

The using process is briefly described as follows: thereby at first 4 motions of vibration fan transmit the vibration stage body 1 based on transmission shaft 8 and drive the vibration of vibration board 2 that sets up on the vibration stage body 1 and realize the test process, first subassembly 5 of making an uproar of falling is used for the noise that the vibration of preliminary absorption vibration stage body 1 produced, the second is fallen the subassembly 6 and is used for further absorbing the first subassembly 5 of making an uproar of falling and the vibration board 2 vibration production of falling, further noise reduction excessive quantity, the fan sound-proof housing 7 that sets up around vibration fan 4 is used for reducing the noise that vibration fan 4 operation produced, avoid the noise to interfere the influence noise reduction effect.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (7)

1. A noise reduction vibration table comprises a vibration table body (1) and a vibration fan (4) for driving the vibration table body (1) to vibrate, wherein a vibration plate (2) for driving a test piece (3) to vibrate is arranged at one end, far away from the ground, of the vibration table body (1); the vibration table is characterized in that a first noise reduction assembly (5) for absorbing noise generated by the vibration table body (1) so as to realize primary noise reduction is arranged on the vibration table body (1), and a second noise reduction assembly (6) for absorbing noise not absorbed by the first noise reduction assembly (5) and further reducing the noise overflow amount is fixedly arranged around the vibration table body (1).

2. A noise-reducing vibration table according to claim 1, characterized in that the first noise-reducing assembly (5) comprises a protective upper cover ring (51) and a protective lower cover ring (52) fixedly connected to the two ends of the vibration table body (1) in the vertical direction, and a first sound-absorbing plate (53) for absorbing noise generated by the vibration table body (1) is arranged in the upper cover ring (51) and the lower cover ring (52).

3. A noise reducing vibration table according to claim 2, wherein the first sound absorbing plate (53) is made of polyester fiber.

4. A noise-reducing vibration table according to claim 1, wherein the second noise-reducing assembly (6) comprises a cover (61) fixedly arranged on the ground and used for covering the vibration table body (1) and the vibration plate (2), an independent test area is formed in the cover (61), a containing cavity (62) used for placing a sound-insulating material is arranged in the cover (61), and a second sound-absorbing plate (63) used for further absorbing noise is arranged in the containing cavity (62).

5. A noise reducing vibration table according to claim 4, wherein the second sound absorbing panel (63) is made of wood wool sound absorbing sheet material.

6. The noise-reducing vibration table according to claim 1, wherein the vibration fan (4) is arranged outside the second noise-reducing assembly (6) and far away from the second noise-reducing assembly (6), the vibration fan (4) is connected with the vibration table body (1) based on a transmission shaft (8), a fan sound-proof housing (7) used for reducing noise emitted to air by the vibration fan (4) is sleeved around the vibration fan (4), and a third sound-absorbing plate (71) is arranged in the fan sound-proof housing (7).

7. A noise-reducing vibration table according to claim 6, wherein the third sound-absorbing panel (71) is made of an acoustic felt material.

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