CN216242027U

CN216242027U - Broadband shock pad

Info

Publication number: CN216242027U
Application number: CN202122955203.4U
Authority: CN
Inventors: 谢晓鸿; 谢时灵; 黄京鹏
Original assignee: Shandong Stars Bioindustry Co ltd; Shandong Shidasi Medical Technology Co ltd
Current assignee: Shandong Stars Bioindustry Co ltd; Shandong Shidasi Medical Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-08
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to a broadband shock pad which comprises a bearing column, a spring and a damping cylinder body with damping liquid, wherein the bottom of the bearing column is embedded into a cavity of the damping cylinder body, the spring is sleeved outside the middle part of the bearing column, one end of the spring is propped against the upper end of the bearing column, and the other end of the spring is pressed on the damping cylinder body; and an adjusting mechanism for adjusting the compression state of the spring is arranged in the bearing column. The utility model still has better shock absorption effect under a wider range of load bearing objects, has wider shock absorption frequency range, and can ensure that the precision instrument is not influenced by vibration or the influence of the vibration is reduced to the minimum in the test process.

Description

Broadband shock pad

Technical Field

The utility model relates to a shock pad, in particular to a broadband shock pad.

Background

In the use and test analysis of the precision instrument, environmental vibration can cause different degrees of influence on the test analysis, and especially, in a production line environment, the influence on the test analysis caused by mechanical vibration inside the precision instrument and surrounding environment vibration is particularly obvious. These effects include disturbances to the test analysis results, distortions of the measured values, i.e. vibrations, which affect the performance of the device and thus lead to false positives.

The utility model discloses a vertical vibration isolation support (Chinese patent publication No. CN 108591355A), which discloses a vibration isolation mode which adopts a spring and a rubber support as main parts and damping liquid as auxiliary parts, and the vibration isolation mode has the following problems: firstly, the method comprises the following steps: the weight requirement to the bearing thing is stricter, surpasss or is less than this weight value after, and the shock attenuation effect obviously descends, the second: the damping frequency range is narrow. It is therefore important to develop a broadband vibration pad that will ensure that the precision instruments will not be affected by vibration or minimize the effect of vibration during testing.

Disclosure of Invention

The present invention is to overcome the above-mentioned defects of the prior art and to provide a broadband shock pad. The broadband damping pad has no strict requirement on the weight of a load bearing object, still has a good damping effect under the condition of bearing the load in a wide range, and has a wide damping frequency range.

The utility model is realized by the following technical scheme:

a broadband shock pad comprises a bearing column, a spring and a damping cylinder body with damping liquid, wherein the bottom of the bearing column is embedded into a cavity of the damping cylinder body, the spring is sleeved outside the middle part of the bearing column, one end of the spring is propped against the upper end of the bearing column, and the other end of the spring is pressed on the damping cylinder body; and an adjusting mechanism for adjusting the compression state of the spring is arranged in the bearing column.

Preferably, the bearing column is composed of a short hollow cylinder and a long hollow cylinder which are integrally formed, the outer diameter of the short hollow cylinder is larger than that of the long hollow cylinder, and sliding grooves are symmetrically formed in two sides of the inside of the long hollow cylinder.

Preferably, the adjusting mechanism comprises an inner hexagon screw and a rigidity adjusting spring which are arranged in the bearing column, the lower part of the inner hexagon screw is sequentially sleeved with an anti-rotation nut, an adjusting nut and a rigidity adjusting spring from top to bottom, and the rigidity adjusting spring is clamped in the sliding groove.

Preferably, a composite shock pad is arranged between the anti-rotation nut and the socket head cap screw.

Preferably, a damping bearing plate is arranged between the rigidity adjusting spring and the damping cylinder body.

The utility model has the beneficial effects that:

the utility model has scientific design and ingenious conception, still has better shock absorption effect under a wider range of weight bearing objects, has wider shock absorption frequency range, can ensure that a precision instrument is not influenced by vibration or the influence of the vibration is reduced to the minimum in the test process, and has better practical application value and popularization value.

Drawings

The following describes a broadband damping pad with reference to the accompanying drawings:

FIG. 1 is a schematic view of a broadband shock pad;

FIG. 2 is a schematic cross-sectional view of a broadband damping pad;

FIG. 3 is a schematic perspective view of a support pillar of a broadband damping pad;

FIG. 4 is a schematic front view of a support pillar of a broadband damping pad;

FIG. 5 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 4;

fig. 6 is a schematic bottom view of a broadband damping pad.

In the figure: the damping device comprises a bearing column 1, a short hollow cylinder 1.1, a long hollow cylinder 1.2, a sliding chute 1.2.1, a spring 2, a damping cylinder 3, damping liquid 4, a damping bearing plate 5, a rigidity adjusting spring 6, an adjusting nut 7, an anti-rotation nut 8, a composite shock pad 9 and a hexagon socket head cap screw 10.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "bottom", "top", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, a broadband shock pad comprises a bearing column 1, a spring 2 and a damping cylinder 3 with damping liquid 4, wherein the bottom of the bearing column 1 is embedded into a cavity of the damping cylinder 3, the spring 2 is sleeved outside the middle part of the bearing column 1, one end of the spring is supported against the upper end of the bearing column 1, and the other end of the spring is pressed on the damping cylinder 3; an adjusting mechanism for adjusting the compression state of the spring 2 is arranged in the bearing column 1. By the design, when environmental vibration is transmitted, the spring can slightly vibrate after absorbing energy, and damping fluid below the spring can generate a viscous effect on the bearing column to further weaken the vibration and absorb the energy; in addition, the adjusting mechanism can adjust the compression state of the spring and has a broadband damping effect.

As shown in fig. 3-6, the load-bearing column 1 is composed of a short hollow cylinder 1.1 and a long hollow cylinder 1.2 which are integrally formed, and the outer diameter of the short hollow cylinder 1.1 is larger than that of the long hollow cylinder 1.2; as shown in fig. 3 and 6, sliding grooves 1.2.1 are symmetrically formed in two sides of the long hollow cylinder 1.2. By the design, the processing and the installation are convenient, and the effect is better.

As shown in fig. 2, the adjusting mechanism includes an inner hexagon screw 10 and a rigidity adjusting spring 6 which are installed in the bearing column 1, an anti-rotation nut 8, an adjusting nut 7 and the rigidity adjusting spring 6 are sequentially sleeved on the lower portion of the inner hexagon screw 10 from top to bottom, and the rigidity adjusting spring 6 is clamped in the sliding groove 1.2.1. Due to the design, the inner hexagonal screw can only do rotary motion because the anti-rotation nut is fastened with the inner hexagonal screw through the threads and the jackscrew; because the adjusting nut is clamped in the sliding groove in the bearing column, the adjusting nut can only move up and down, so that the rigidity adjusting spring is compressed or extended, and the compression state between the rigidity adjusting spring and the spring is changed due to the change of the rigidity adjusting spring, so that the response frequency of the whole mechanism is changed, the broadband shock absorption can be realized, and the shock absorption effect is improved.

As shown in fig. 2, a composite shock pad 9 is arranged between the anti-rotation nut 8 and the socket head cap screw 10. Due to the design, on one hand, when the socket head cap screw is rotated, the socket head cap screw can only do rotating motion due to the common limitation of the bearing column and the composite damping pad; on the other hand, the composite shock pad can further absorb shock energy, and further improve the shock absorption effect.

As shown in fig. 2, a damping bearing plate 5 is provided between the stiffness adjusting spring 6 and the damping cylinder 3. So design, the damping loading board also can further absorb the shock energy, and then improves the shock attenuation effect.

The structural features and principles of the above-described embodiments are as follows:

the adjusting mechanism is used for adjusting the compression state of the spring and comprises an inner hexagon screw and a rigidity adjusting spring, wherein the inner hexagon screw and the rigidity adjusting spring are installed in the bearing column, the lower part of the inner hexagon screw is sequentially sleeved with a composite shock pad, an anti-rotating nut, an adjusting nut and a rigidity adjusting spring from top to bottom, the rigidity adjusting spring is clamped in a sliding groove, and a damping bearing plate is arranged between the rigidity adjusting spring and a damping cylinder body. The anti-rotation nut is fastened with the socket head cap screw through the threads and the jackscrew, so that when the socket head cap screw is rotated, the socket head cap screw can only do rotary motion due to the common limitation of the bearing column and the composite damping pad; the adjusting nut is clamped in the sliding groove in the bearing column, so that the adjusting nut can only move up and down to compress or extend the rigidity adjusting spring, and the compression state between the rigidity adjusting spring and the spring is changed due to the change of the rigidity adjusting spring, so that the response frequency of the whole mechanism is changed, the damping effect is still good under a wide range of bearing weight, the damping frequency range is wide, and the precision instrument can be ensured not to be influenced by vibration or the influence of vibration is reduced to the minimum in the test process.

The above embodiments are only specific examples of the present invention, which is not intended to limit the present invention in any way, and any person skilled in the art may modify or modify the technical details disclosed above and equally vary from the equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention should fall within the scope of protection of the present invention without departing from the technical principle of the present invention.

Claims

1. A broadband shock pad is characterized in that: the damping cylinder comprises a bearing column (1), a spring (2) and a damping cylinder body (3) with damping liquid (4), wherein the bottom of the bearing column (1) is embedded into a cavity of the damping cylinder body (3), the spring (2) is sleeved outside the middle part of the bearing column (1), one end of the spring is propped against the upper end of the bearing column (1), and the other end of the spring is pressed on the damping cylinder body (3); an adjusting mechanism used for adjusting the compression state of the spring (2) is arranged in the bearing column (1).

2. The broadband shock pad of claim 1, wherein: the bearing column (1) is composed of a short hollow cylinder (1.1) and a long hollow cylinder (1.2) which are integrally formed, the outer diameter of the short hollow cylinder (1.1) is larger than that of the long hollow cylinder (1.2), and sliding grooves (1.2.1) are symmetrically formed in two sides of the interior of the long hollow cylinder (1.2).

3. The broadband shock pad of claim 2, wherein: the adjusting mechanism comprises an inner hexagonal screw (10) and a rigidity adjusting spring (6) which are installed in the bearing column (1), wherein an anti-rotating nut (8), an adjusting nut (7) and the rigidity adjusting spring (6) are sequentially sleeved on the lower portion of the inner hexagonal screw (10) from top to bottom, and the rigidity adjusting spring (6) is clamped in the sliding groove (1.2.1).

4. The broadband shock pad of claim 3, wherein: and a composite shock pad (9) is arranged between the anti-rotation nut (8) and the inner hexagon screw (10).

5. The broadband shock pad of claim 4, wherein: and a damping bearing plate (5) is arranged between the rigidity adjusting spring (6) and the damping cylinder body (3).