CN219197981U - Damper for shock-resistant vibration - Google Patents

Abstract

The utility model discloses a damper for shock vibration resistance, in particular to the technical field of low-voltage electric appliances for ships, which comprises a bracket, wherein one side of the bracket is fixedly provided with a shell, a base is arranged in the shell, a push rod is movably arranged at a position corresponding to the center of an inner cavity of the shell in a penetrating manner, a damping sheet is fixedly arranged at one end of the push rod extending to the outside of the bracket, a push head is fixedly arranged at one end positioned in the shell, a spring is movably sleeved at the position, between the push head and one side of the bracket facing the shell, of the peripheral surface of the push rod, and an inertia ball is arranged between the push head and the base. When the damper is subjected to impact vibration action, the inertial ball pushes one end of the push rod, which is close to the damping piece, to move towards the target moving part under the action of impact force, and the damping surface is utilized to form damping action on the moving parts of the circuit breaker and the contactor, so that misoperation of the circuit breaker and the contactor under the action of the impact force is prevented.

Description

Damper for shock-resistant vibration

Technical Field

The utility model relates to the technical field of ship-used piezoelectrics, in particular to a damper for resisting shock and vibration.

Background

The product of the ship-used piezoelectric device needs to meet the shock resistance and vibration performance specified in GJB5A general Specification of ship-used piezoelectric devices. The direct-acting components such as the movable iron core of the contactor in the product are easy to malfunction under the impact vibration action, so that the system cannot continuously supply power and other accidents are caused. How to solve the shock resistance and vibration performance of various direct acting components is a difficulty in designing voltage electric products for ships.

The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present utility model provides a damper for shock vibration, in which one end of a push rod, which is close to a damping fin, is pushed out of a cavity defined between a bracket and a housing by four inertial balls under shock vibration, and the motion of a moving member is slowed down by the damping action between the damping fin and the moving member, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a attenuator for shock resistance vibration, includes the support, support one side is fixed to be equipped with the shell, the inside base that is provided with of shell, the position department activity that the support corresponds shell inner chamber center runs through and is equipped with the push rod, the push rod extends to the outside one end of support and is fixed to be equipped with the damping fin and be located the inside one end of shell and fix and be equipped with the push head, the position department movable sleeve that the push rod outer peripheral face is located between push head and support facing shell one side is equipped with the spring, be provided with the inertia ball between push head and the base.

The technical scheme of the utility model is further defined as follows: one side of the damping fin, which is far away from the bracket, is provided with a rough surface.

The technical scheme of the utility model is further defined as follows: the push head is in a conical structure, and the surface of the push head is smooth.

The technical scheme of the utility model is further defined as follows: the inertial balls are arranged in four directions, and the four inertial balls are respectively arranged in the four directions of the push head.

The technical scheme of the utility model is further defined as follows: the surfaces of the four inertial balls are all smooth and clean.

The technical scheme of the utility model is further defined as follows: the moving direction of the push rod is perpendicular to the direction of the inertia ball.

The utility model has the technical effects and advantages that:

according to the damper, one end, close to the damping fin, of the push rod is pushed out of a cavity formed between the support and the shell through the four inertia balls under impact vibration, and the action of the moving part is slowed down through the damping action between the damping fin and the moving part, so that misoperation can be avoided when electric products such as a circuit breaker and a contactor are subjected to strong impact force of a ship.

Drawings

The accompanying drawings are included to provide a further understanding of the technical aspects of the utility model, and are incorporated in and constitute a part of this specification, and are included to illustrate and explain the utility model.

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a side cross-sectional view of the entire body of the present utility model.

Fig. 3 is a schematic view of the internal structure of the present utility model.

Fig. 4 is a schematic diagram of the application of the present utility model in a contactor.

The reference numerals are: 1 bracket, 2 damping fin, 3 push rod, 4 spring, 5 inertia ball, 6 base, 7 shell, 8 push head, 9 damper, 10 damping surface, 11 contactor movable iron core, 12 contactor static iron core.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Examples

Referring to fig. 1-3 of the specification, the damper for shock vibration resistance according to an embodiment of the present utility model includes a support 1, a housing 7 is fixedly disposed on one side of the support 1, a base 6 is disposed inside the housing 7, a push rod 3 is movably disposed at a position of the support 1 corresponding to a center of an inner cavity of the housing 7, a damping fin 2 is fixedly disposed at one end of the push rod 3 extending to an outside of the support 1, a push head 8 is fixedly disposed at one end of the push rod located inside the housing 7, a spring 4 is movably disposed at a position of an outer peripheral surface of the push rod 3 located between the push head 8 and a side of the support 1 facing the housing 7, and an inertia ball 5 is disposed between the push head 8 and the base 6.

In this embodiment, the side of the damping fin 2 away from the support 1 is provided with a rough surface, where the rough design of the surface of the damping fin 2 may be an anti-slip cross-grain or an additional wear-resistant anti-slip pad, so as to increase the friction between the damping fin 2 and a moving part (the contactor moving iron core 11 in fig. 4, the same applies below) after contacting with the moving part.

In this embodiment, the push head 8 is provided with a conical structure, and the surface of the push head 8 is provided with a smooth surface, so that it is ensured that the end of the push rod 3, which is close to the damping fin 2, is pushed out of the cavity enclosed between the bracket 1 and the housing 7 by pushing the inertial ball 5 more easily, so that the damping fin 2 is pushed to contact with a moving part.

In this embodiment, the four inertial balls 5 are disposed in four directions of the push head 8, so that the inertial balls 5 can act to generate thrust on the push rod 3 when the damper 9 is impacted and vibrated in any direction.

In this embodiment, the surfaces of the four inertial balls 5 are all smooth, so that the inertial balls 5 can be ensured to easily displace under impact vibration.

In this embodiment, the moving direction of the push rod 3 is perpendicular to the direction of the inertia ball 5, so that when the push rod 3 receives the impact force in the perpendicular direction, the damping fin 2 can be pushed out under the action of the own inertia force, thereby realizing the impact resistance.

It should be noted that, in the free state, the push rod 3 is kept in the cavity enclosed between the bracket 1 and the housing 7 under the action of the spring 4, that is, the damping fin 2 is movably attached to the surface of the bracket 1 on one side close to the bracket 1, at this time, a certain gap exists between the damping fin 2 and the moving part, and the moving part can move freely; when the damping piece is in a strong impact or vibration environment, the inertia ball 5 generates displacement under the impact action, and one end of the push rod 3, which is close to the damping piece 2, is pushed out of a cavity enclosed between the bracket 1 and the shell 7, so that the damping piece 2 is pushed to be in contact with a moving part, and at the moment, the damping piece 2 is tightly attached to the moving part to generate a damping action, so that the movement of the moving part is slowed down.

Furthermore, the four inertia balls 5 can ensure that the shock resistance can be realized in the X-axis direction and the Y-axis direction shown in the figure 3 of the specification; the motion direction of the push rod 3 is the Z-axis direction, and the impact resistance and vibration performance can be realized under the action of impact force and the self inertia. Therefore, the damper 9 of the present utility model can realize the shock resistance in three directions of the X axis, the Y axis and the Z axis.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (6)

1. A damper for resisting vibration, characterized in that: including support (1), support (1) one side is fixed to be equipped with shell (7), shell (7) inside is provided with base (6), the position department activity that support (1) corresponds shell (7) inner chamber center runs through and is equipped with push rod (3), push rod (3) extend to the outside one end of support (1) fixedly be equipped with damping fin (2) and be located shell (7) one end fixed be equipped with push head (8), push rod (3) outer peripheral face is located push head (8) and support (1) and is equipped with spring (4) towards the position department movable sleeve between shell (7) one side, be provided with inertial ball (5) between push head (8) and base (6).

2. A damper for resisting vibration as set forth in claim 1, wherein: one side of the damping fin (2) far away from the bracket (1) is provided with a rough surface.

3. A damper for resisting vibration as set forth in claim 1, wherein: the push head (8) is in a conical structure, and the surface of the push head (8) is smooth.

4. A damper for resisting vibration as set forth in claim 1, wherein: the inertial balls (5) are arranged in four, and the four inertial balls (5) are respectively arranged in four directions of the push head (8).

5. A damper for resisting vibration as recited in claim 4, wherein: the surfaces of the four inertia balls (5) are all arranged in a smooth and clean mode.

6. A damper for resisting vibration as set forth in claim 1, wherein: the moving direction of the push rod (3) is perpendicular to the direction of the inertia ball (5).

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