CN218095277U - Vibration isolation device and test system comprising same - Google Patents

Abstract

The present disclosure relates to a vibration isolation device and a test system including the same. The vibration isolation device includes: the vibration isolator comprises an elastic base, a supporting rod and a sliding block, wherein the supporting rod extends in a first direction and is connected to the elastic base; and a detachable clamp detachably coupled to the slider, the detachable clamp including a slider slot extending in a second direction perpendicular to the first direction, the slider configured to slide in the slider slot in the second direction. According to the vibration isolation device disclosed by the invention, the influence of external vibration can be effectively filtered, and the test reliability of the motor test tool placed on the vibration isolation device is improved.

Description

Vibration isolation device and test system comprising same

Technical Field

The utility model relates to a vibration isolation device reaches test system including it.

Background

In modern industry, the NVH (noise, vibration and acoustic harshness) performance of electrical machines is of increasing concern. At present, in order to ensure the accuracy of a test result and simulate various operating conditions, the NVH performance test of a motor needs to be carried out on a test bench, so that the test cannot be carried out timely and conveniently.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a vibration isolation device and a test system comprising the same, so as to overcome the technical problem that NVH performance test cannot be timely and conveniently carried out.

Embodiments of the present disclosure provide a vibration isolation device, which may include: the vibration isolator comprises an elastic base, a supporting rod and a sliding block, wherein the supporting rod extends in a first direction and is connected to the elastic base; and a detachable clip detachably attached to the slider. The removable clamp includes a slider slot extending in a second direction perpendicular to the first direction, the slider configured to slide in the slider slot in the second direction.

In an embodiment of the present disclosure, for example, the detachable jig may further include first and second plates disposed opposite to and spaced apart from each other in the second direction and a third plate positioned between the first and second plates. The second plate and the third plate are connected with each other, and the first plate, the second plate and the third plate enclose a groove located on one side of the third plate far away from the elastic base. Slider slots are provided in the third plate.

In an embodiment of the present disclosure, for example, the removable clamp may further comprise a spring telescopic rod to adjust the distance between the first plate and the second plate. The spring telescoping rod includes an inner rod secured to the first plate and an outer rod secured within the third plate. At least a portion of the inner rod is inserted into the outer rod. The spring telescopic rod further comprises a spring sleeved on the outer rod. Both ends of the spring are connected to the first plate and the second plate, respectively.

In an embodiment of the present disclosure, for example, the removable clamp may further include a cushion pad laid in the groove. The cushion includes a first portion disposed on the first panel, a second portion disposed on the second panel, and a third portion disposed on the third panel.

In an embodiment of the present disclosure, for example, in a state where the third plate and the first plate are in contact with each other, a distance between the first plate and the second plate in the second direction is a first distance, and a length of the slider groove in the second direction may be less than the first distance and greater than or equal to half of the first distance. The distance between the slider slot and the first plate may be less than the distance between the slider slot and the second plate.

In an embodiment of the present disclosure, the elastic mount may be a rubber mount, for example.

In an embodiment of the present disclosure, for example, the vibration isolator may further include a metal sleeve fixed to the resilient base, at least a portion of the support rod is inserted into the metal sleeve, and a relative position of the support rod and the metal sleeve in the first direction is adjustable.

In one embodiment of the present disclosure, for example, the support rod may be a threaded rod, and the support rod is threadedly connected to the metal sleeve. The vibration isolator can further comprise at least one of a first nut which is sleeved on the supporting rod and is positioned on one side, facing the sliding block, of the metal sleeve and a second nut which is sleeved on the supporting rod and is positioned on one side, facing the metal sleeve, of the sliding block.

Embodiments of the present disclosure also provide a test system, which may include: the vibration damping device according to the above; a support table connected to the detachable jig and supported by the vibration isolating device; and a noise, vibration and harshness (NVH) performance testing device arranged on the supporting table.

In one embodiment of the present disclosure, for example, the support table is supported by a plurality of vibration isolation devices.

According to the vibration isolation device disclosed by the invention, the influence of external vibration can be effectively filtered, and the test reliability of the motor test tool placed on the vibration isolation device can be improved.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Fig. 1 shows a schematic perspective view of a vibration isolation device according to an embodiment of the present disclosure in an assembled state;

fig. 2 shows a schematic perspective view of a vibration isolation device according to an embodiment of the present disclosure in a disassembled state;

fig. 3 illustrates an exploded perspective view of a vibration isolator of a vibration isolation device according to an embodiment of the present disclosure;

fig. 4 shows a schematic perspective view of a removable clamp of a vibration isolation device according to an embodiment of the present disclosure;

fig. 5 illustrates an exploded perspective view of a removable clamp of a vibration isolation device according to an embodiment of the present disclosure; and

FIG. 6 shows a schematic diagram of a test system according to an embodiment of the present disclosure.

Reference numerals:

1: a vibration isolation device; 10: a vibration isolator;

11: an elastic base; 12: a support bar;

13: a slider; 14: a metal sleeve;

15: a first nut; 16: a second nut;

2: a support table; 20: a detachable clamp;

21: a first plate; 22: a second plate;

23: a third plate; 24: a slider slot;

25: a telescopic rod; 251: an inner rod;

252: an outer rod; 253: spring

26: a telescopic rod pipe; 28: a cushion pad;

281: a first portion of the cushion; 282: a second portion of the cushion;

283: a third portion of the cushion; 3: test system

4: NVH performance testing device

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without inventive step, are within the scope of protection of the disclosure.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another.

In order to quickly verify the NVH performance of the motor under the conditions of no load and constant speed, the test tool needs to be placed on the ground or a plastic pad instead of a test bench. However, when the test fixture is placed on the ground or on a plastic mat, nearby vibration equipment such as control cabinets, circulators, etc. may produce unexpected excitation. For example, the background vibration value may not only reach 0.35g, but also change frequently over time.

Embodiments of the present disclosure provide a vibration isolation device to overcome the influence of external vibration on NVH performance tests.

Fig. 1 shows a schematic perspective view of a vibration isolating device 1 according to an embodiment of the present disclosure in an assembled state. Fig. 2 shows a schematic perspective view of the vibration isolation device 1 according to an embodiment of the present disclosure in a disassembled state. As shown in fig. 1 and 2, the vibration isolating device 1 includes a vibration isolator 10 and a detachable clamp 20. The vibration isolator 10 includes a resilient base 11, a support rod 12 extending in the first direction D1 and connected to the resilient base 11, and a slider 13 disposed at an end of the support rod 12 opposite to the resilient base 11. The removable clamp 20 is removably attached to the slider 13 and includes a slider slot 24 extending in a second direction D2 perpendicular to the first direction D1. The slider 13 can slide in the second direction D2 in the slider groove 24. In the vibration isolation device 1 according to the embodiment of the present disclosure, the sliding connection between the detachable clamp 20 and the vibration isolator 10 may enable the axis of the supporting rod 12 to substantially pass through the center of the detachable clamp 20, and this connection manner is matched with the external vibration absorption performance of the elastic base in the vibration isolator 10, so that the vibration isolation performance and stability of the vibration isolation device 1 may be ensured, thereby overcoming the influence of the external vibration on the NVH performance test. In addition, when the vibration isolation device according to the embodiment of the disclosure is used for a motor test tool, the test reliability of the motor test tool placed on the vibration isolation device can be improved.

Fig. 3 illustrates an exploded perspective view of the vibration isolator 10 of the vibration isolation device 1 according to an embodiment of the present disclosure. As shown in fig. 3, the vibration isolator 10 may include a resilient base 11, a support rod 12 extending in the first direction D1 and connected to the resilient base 11, and a slider 13 disposed at an end of the support rod 12 opposite to the resilient base 11. The elastic base 11 may prevent or reduce the transmission of external vibration to the detachable clip 20. The elastic base 11 may be made of an elastic material having good shock-proof properties, such as rubber. The slider 13 may be disposed at an end of the support rod 12 opposite to the elastic base 11 by various methods, for example, the slider 13 may include a threaded hole, and the support rod 12 may be a threaded rod to be threadedly coupled to the slider 13. The slider 13 may be disposed on the end of the support rod 12 opposite to the elastic base 11 by welding, integral molding, or the like.

For example, the sectional shape of the slider 13 taken in the direction perpendicular to the second direction D2 may be substantially the same as the sectional shape of the hollow portion in the slider groove 24 taken in the direction perpendicular to the second direction D2, so that after the slider 13 is inserted into the slider groove 24, the stability of the slider 13 in the slider groove 24 may be maintained, and thus the stability of the detachable clip 20 may be ensured. As can be seen from fig. 3, the slider 13 has a substantially trapezoidal shape in cross section. However, embodiments according to the present disclosure are not limited thereto, and the cross-sectional shape of the slider 13 may also be any other suitable shape.

Vibration isolator 10 may also include a metal sleeve 14 secured to elastomeric base 11. The metal sleeve 14 may be fixed to the elastic base 11 by various methods such as, but not limited to, adhesion, injection molding, etc. The metal sleeve 14 is provided so that the support rod 12 is stably coupled to the elastic base.

For example, at least a portion of the support pole 12 may be inserted into the metal sleeve 14, and the relative positions of the support pole 12 and the metal sleeve 14 in the first direction D1 may be adjusted. For example, the support rod 12 may be a threaded rod and threadedly coupled to a metal sleeve 14 formed with internal threads. By adjusting the length of the threaded rod screwed into the metal sleeve 14, the relative positions of the support rod 12 and the metal sleeve 14 can be adjusted, thereby adjusting the height of the vibration isolation device 1.

In some embodiments, a first nut 15 may be sleeved on the support rod 12. The first nut 15 is located on the side of the slider 13 facing the metal sleeve 14. For example, after the slider 13 is coupled to the support rod 12, the first nut 15 may be screwed toward the slider 13 to abut against the slider 13 (as shown in fig. 2), thereby adjusting the position of the slider 13 and further fixing the slider 13 and the support rod 12. In this case, the slider 13 can maintain a stable relative positional relationship with the support rod 12 both in the axial direction of the support rod 12 and in the circumferential direction of the support rod 12, thereby further enhancing the vibration-isolating performance of the vibration isolator 10. In addition, when the position of the slider 13 relative to the supporting rod 12 needs to be adjusted, the first nut 15 may be screwed in a direction away from the slider 13, so that the first nut 15 and the slider 13 keep a certain distance, and then the relative position between the slider 13 and the supporting rod 12 may be adjusted.

In some embodiments, a second nut 16 may be sleeved on the support rod 12. The second nut 16 is located on the side of the metal sleeve 14 facing the slider 13. For example, after the support rod 13 is inserted into the metal sleeve 14 and the relative position therebetween in the axial direction of the support rod 12 is adjusted (i.e., the height of the vibration isolator 10 is adjusted), the second nut 16 may be screwed toward the metal sleeve 14 to abut against the metal sleeve 14 (as shown in fig. 2), thereby further fixing the relative positions of the support rod 12 and the metal sleeve 14. In this case, the vibration isolating performance of the vibration isolator 10 can be further enhanced. In addition, when the position of the support rod 12 relative to the metal sleeve 14 needs to be adjusted, the second nut 16 may be screwed in a direction away from the metal sleeve 14, so that the second nut 16 keeps a certain distance from the metal sleeve 14, and then the relative position between the metal sleeve 14 and the support rod 12 is adjusted.

The respective operation and functions of the first nut 15 and the second nut 16 are described in the above embodiments. However, the vibration isolating device according to the embodiment of the present disclosure may include only any one of the first nut 15 and the second nut 16, and may also include both the first nut 15 and the second nut 16. When the vibration isolating device includes both the first nut 15 and the second nut 16, by adjusting the position of the slider 13 using the first nut 15 and adjusting the height of the vibration isolator 10 using the second nut 16, the height of the vibration isolating device 1 can be adjusted while adjusting the axis of the support rod 12 to pass through the center of the detachable jig 20, thereby ensuring the stability and vibration isolating performance of the vibration isolating device 1.

For example, in the above-described embodiment, the support rod 12 is a threaded rod that is provided with threads throughout the axial direction. However, embodiments according to the present disclosure are not limited thereto, and may be provided with threads only at portions that need to be threadedly engaged with other components.

In addition, in some other embodiments, the connection manner between the support rod 12 and the metal sleeve 14 is not limited to a threaded connection, and the relative positions of the support rod 12 and the metal sleeve 14 in the first direction D1 may be adjusted by other manners. For example, a plurality of locking grooves may be formed in the metal sleeve 14 along the first direction D1, and the relative positions of the support rod 12 and the metal sleeve 14 may be adjusted by fitting protrusions of the support rod 12 into different locking grooves.

For example, by adjusting the relative position between the support rod 12 and the metal sleeve 14 in the axial direction of the support rod 12, the height of the vibration isolator 10 can be conveniently adjusted, and thus the height of the vibration isolating device 1 can be adjusted. In this case, when a plurality of vibration isolation devices 1 support an object to be supported, each vibration isolation device 1 can be independently adjusted in height, so that the object to be supported can be adjusted in different orientations. For example, the supported object can be made to be in a horizontal state, or in an inclined state at an angle to the horizontal plane.

Fig. 4 shows a schematic perspective view of the removable clamp 20 of the vibration isolating device 1 according to an embodiment of the present disclosure, and fig. 5 shows an exploded perspective view of the removable clamp 20 of the vibration isolating device 1 according to an embodiment of the present disclosure.

As shown in fig. 4 and 5, the detachable jig 20 may further include a first plate 21, a second plate 22, and a third plate 23 between the first plate 21 and the second plate 22, which are opposite to and spaced apart from each other in the second direction D2. The second plate 22 and the third plate 23 are connected to each other and the first plate 21, the second plate 22 and the third plate 23 enclose a recess at a side of the third plate 23 remote from the resilient base 11. Slider slots 24 may be provided in the third plate 23. For example, the second plate 22 and the third plate 23 in this embodiment may be integrally formed with each other, or the second plate 22 and the third plate 23 may be separately formed and then the second plate 22 and the third plate 23 may be connected together.

There is no particular limitation in the material of the first plate 21, the second plate 22, and the third plate 23, and for example, it may be a metal member or a plastic member, but preferably has a certain strength to achieve clamping of the clamped object. The respective sizes of the first plate 21, the second plate 22, and the third plate 23 are not particularly limited, and may be adjusted according to the size of the object to be clamped.

As can be seen from the embodiment of fig. 4, the surfaces of the first plate 21 and the second plate 22 that are opposite to each other are parallel to each other, and the surfaces and the upper surface of the third plate 23 are perpendicular to each other. However, embodiments according to the present disclosure are not limited thereto, and may be used to place an object to be clamped in a groove of the third plate 23 on a side away from the elastic base 11, so as to realize a clamping function, as long as the first plate 21, the second plate 22, and the third plate 23 can enclose the groove.

The removable clamp 20 may further comprise a spring telescopic rod 25 to adjust the distance between the first plate 21 and the second plate 22. The spring extension rod 25 extends in the second direction D2 and may include an inner rod 251 and an outer rod 252. The inner rod 251 may be secured to the first plate 21 and the outer rod 252 may be secured within the third plate 23. At least a portion of the inner rod 251 may be inserted into the outer rod 252. The spring extension rod 25 may further include a spring 253 fitted over the outer rod 252, and both ends of the spring 253 are connected to the first plate 21 and the second plate 22, respectively. For example, the outer rod 252 may be fixed within the third plate 23 by at least one weld spot welded to the inner wall of a telescoping rod tube (such as telescoping rod tube 26 described below) in the third plate 23. The at least one weld is located at a position that does not affect the penetration of the spring 253. For example, the at least one welding point is located at an upper and lower position of the outer rod 252 near one end of the first plate 21, and allows the spring 253 to pass through from other gap positions. By fixing the outer rod 252 to the inner wall of the telescopic rod tube in the third plate 23, the detachable jig 20 can stably support a motor test fixture of a greater weight, and thus the test reliability of the motor test fixture placed on the vibration isolating device 1 can be improved. In addition, the outer bar 252 may also be secured (e.g., welded) to the second plate 22 to further improve the structural stability of the removable clamp 20. For example, the entire side of the outer bar 252 facing the second plate 22 may be welded to the second plate 22. By adjusting the length of the portion of the inner rod 251 inserted into the outer rod 252, the distance between the first plate 21 and the second plate 22 can be adjusted, thereby adjusting the width of the removable clamp 20. That is, the size of the recess defined by the first plate 21, the second plate 22 and the third plate 23 and located on the side of the third plate 23 far from the elastic base 11 along the second direction D2 can be adjusted, so that the recess can be adapted to different sizes of different objects to be clamped.

The removable clamp 20 may also include a telescoping rod tube 26 to accommodate the spring telescoping rod 25. A telescopic rod tube 26 may be provided in the third plate 23. The detachable clip 20 shown in fig. 4 and 5 includes two spring telescopic rods 25 and two telescopic rod tubes 26, but this is merely an example, and the number of the spring telescopic rods 25 and the telescopic rod tubes 26 is not limited thereto. For example, the number of the spring telescopic rods 25 may be one, two, three or more, and the number of the telescopic rod tubes 26 may be the same as the number of the spring telescopic rods 25. Further, in the case where the spring expansion link 25 is plural, the plural spring expansion links 25 may be provided in parallel with each other. For example, the axes of the plurality of spring telescopic rods 25 are parallel to each other in a plane perpendicular to the first direction D1, thereby ensuring stability of the movement between the first plate 21 and the second plate 22 relative to each other.

For example, when the first plate 21 moves away from the second plate 22, the spring 253 on the spring expansion rod 25 is in a stretched state to apply a pulling force to the first plate 21 toward the second plate 22, so that the first plate 21 and the second plate 22 can sandwich the clamped object therebetween in a state where the clamped object is placed in the groove. When the clamped object is removed, the first plate 21 moves toward the second plate 22 under the tensile force of the spring 253 until coming into contact with the third plate 23.

As shown in fig. 4, in a state where the third plate 23 and the first plate 21 are in contact with each other, the distance between the first plate 21 and the second plate 22 in the second direction D2 is a first distance L1. The length L2 of the slider groove 24 in the second direction D2 is smaller than the first distance L1 so that the slider 13 can be mounted into the slider groove 24 through the gap between the slider groove 24 and the second plate 22. Further, the length L2 of the slider groove 24 in the second direction D2 is greater than or equal to half of the first distance L1 so that the slider 13 can slide to the center of the detachable clip 20, thereby stably supporting the detachable clip 20. The distance between the slider groove 24 and the first plate 21 may be smaller than the distance between the slider groove 24 and the second plate 22. For example, one end of the slider groove 24 may be aligned with a side of the third plate 23 facing the first plate 21, and the other end of the slider groove 24 may be spaced apart from the second plate 22. Therefore, even in a state where the third plate 23 and the first plate 21 are separated from each other, for example, the third plate 23 and the first plate 21 may be spaced apart by about the length of the spring expansion link 25, sliding the slider 13 to the end of the slider groove 24 close to the first plate 21 may allow the slider 13 to be positioned at the center of the detachable clip 20, thereby stably supporting the detachable clip 20.

The removable fixture 20 may be removably coupled to a motor test fixture, such as the support stand 2 described below, for ease of installation and removal. In addition, the vibration isolation device 1 according to the present disclosure may be applicable to motor test tools having different widths, thereby having an extended applicable range.

The removable clamp 20 may further include a cushion pad 28 laid in a recess defined by the first plate 21, the second plate 22, and the third plate 23. Cushion pad 28 may include a first portion 281 disposed on first panel 21, a second portion 282 disposed on second panel 22, and a third portion 283 disposed on third panel 23. In some embodiments, the second portion 282 and the third portion 283 may be connected to each other, but are not limited thereto. For example, the second portion 282 and the third portion 283 are two separate pieces. In a state where the motor test fixture is connected to the detachable jig 20, the buffer pads 28 may serve as a buffer between the motor test fixture and the detachable jig 20, and reduce transmission of external vibration to the motor test fixture through the detachable jig 20.

Fig. 6 shows a schematic diagram of a test system 3 according to an embodiment of the present disclosure. The test system 3 may include the vibration isolation device 1 described above, a supporting stage 2 connected to the detachable jig 20 and supported by the vibration isolation device 1, and an NVH performance test device 4 provided on the supporting stage 2. In addition, although not shown, a motor as a target of the NHV performance test may also be provided on the supporting stage 2.

The support table 2 may have an attachment structure (e.g., a recess, not shown) that attaches to the removable clamp 20. In fig. 6, the detachable clip 20 is shown attached in phantom lines in the recess. However, embodiments according to the present disclosure are not limited thereto, and the support table 2 may also have a protruding connection structure to be connected to the detachable jig 20. By adjusting the distance between the first plate 21 and the second plate 22 of the vibration isolating device 1, the width of each detachable jig 20 can be adjusted, so that the vibration isolating device 1 can support the supporting table 2 having the connection structure of different widths.

Although fig. 6 shows that the support table 2 may be supported by 2 vibration isolating devices 1, the number of vibration isolating devices 1 is not limited thereto. The support base 2 may be supported by a plurality of the vibration isolation devices 1 as necessary. For example, three or more vibration isolators 1 may be used to support the support base for the purpose of improving the stability of the support base. By adjusting the relative positions of the support rod 12 and the metal sleeve 14 of each vibration isolation device 1, the height of each vibration isolation device 1 can be individually adjusted, thereby ensuring that the entire support table 2 is in a horizontal state.

The test system according to the embodiment of the present disclosure includes the vibration isolation device according to any one of the embodiments, and therefore, various technical effects and advantages described in the embodiments above are also provided, and are not described herein again. In addition, the test system according to the embodiment of the disclosure has improved vibration isolation performance and stability, and therefore, the influence of external vibration on NVH performance test can be overcome, thereby having improved test reliability. For example, the test system according to the present disclosure can perform a test on the ground or a plastic pad without being placed on a test bench, thereby enabling a NVH performance test to be performed timely and conveniently.

The following points need to be explained:

(1) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are referred to, and other structures may refer to general designs.

(2) Features of the same embodiment of the disclosure and of different embodiments may be combined with each other without conflict.

Although the present disclosure has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure, and therefore the scope of the present disclosure is to be limited only by the terms of the appended claims.

Claims (10)

1. A vibration isolation apparatus, comprising:

a vibration isolator including an elastic base, a support rod extending in a first direction and connected to the elastic base, and a slider disposed at an end of the support rod opposite to the elastic base; and

a detachable clip detachably attached to the slider,

the removable clamp includes a slider slot extending in a second direction perpendicular to the first direction, the slider configured to slide in the slider slot in the second direction.

2. The vibration isolation apparatus according to claim 1, wherein the detachable jig further comprises a first plate and a second plate disposed opposite to and spaced apart from each other in the second direction, and a third plate disposed between the first plate and the second plate, the second plate and the third plate being connected to each other, and the first plate, the second plate and the third plate enclosing a groove disposed on a side of the third plate away from the elastic base, the slider groove being disposed in the third plate.

3. The vibration isolation device according to claim 2, wherein the detachable clamp further comprises a spring telescopic rod to adjust a distance between the first plate and the second plate, the spring telescopic rod comprising an inner rod and an outer rod, the inner rod being fixed to the first plate, the outer rod being fixed within the third plate, at least a portion of the inner rod being inserted into the outer rod, the spring telescopic rod further comprising a spring sleeved on the outer rod, both ends of the spring being connected to the first plate and the second plate, respectively.

4. The vibration isolation apparatus of claim 2 or 3, wherein the detachable clamp further comprises a cushion pad laid in the groove, the cushion pad comprising a first portion disposed on the first plate, a second portion disposed on the second plate, and a third portion disposed on the third plate.

5. The vibration isolation device according to claim 2 or 3, wherein in a state where the third plate and the first plate are in contact with each other, a distance between the first plate and the second plate in the second direction is a first distance, a length of the slider groove in the second direction is smaller than the first distance and is greater than or equal to half of the first distance, and a distance between the slider groove and the first plate is smaller than a distance between the slider groove and the second plate.

6. The vibration isolation device according to any one of claims 1 to 3, wherein the elastic mount is a rubber mount.

7. The vibration isolation device according to any one of claims 1 to 3, further comprising a metal sleeve fixed to the elastic base, at least a portion of the support rod being inserted into the metal sleeve, and a relative position of the support rod and the metal sleeve in the first direction being adjustable.

8. The vibration isolation device according to claim 7, wherein the support rod is a threaded rod, the support rod is threadedly connected to the metal sleeve, and the vibration isolator further comprises at least one of a first nut fitted over the support rod and located on a side of the metal sleeve facing the slider, and a second nut fitted over the support rod and located on a side of the slider facing the metal sleeve.

9. A test system, comprising:

the vibration isolation device according to any one of claims 1 to 8;

a support table connected to the detachable jig and supported by the vibration isolation device; and

and the noise, vibration and harshness (NVH) performance testing device is arranged on the supporting table.

10. The test system of claim 9, wherein the support table is supported by a plurality of the vibration isolation devices.

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