A micro-damper

Abstract

The utility model relates to damper equipment technical technical field, concretely relates to a kind of micro-damper, including shell and locking nut, locking nut is arranged in shell one end, multiple annular damping sheets and multiple annular gaskets are provided in shell, damping sheet is arranged between adjacent gasket, and pressure spring is arranged between the gasket of uppermost side and locking nut;Surface of gasket is provided with engaging slot, damping sheet is installed in engaging slot, multiple elastic friction protrusions are provided with in engaging slot inboard equidistance around, and elastic friction protrusion is attached with damping sheet side edge. By setting engaging slot, positioning engagement between gasket and damping sheet is achieved, and elastic friction protrusion is provided in engaging slot, by multidirectional provision of friction, increase contact area, effectively increase total damping force, reduce lateral displacement, improve the stability of structure.

Description

Technical Field

[0001] This utility model relates to the field of damper equipment technology, and in particular to a miniature damper. Background Technology

[0002] In linear or rotary mechanisms, dampers are typically added to eliminate free travel or to allow the mechanism to hover. Commonly used dampers include electromagnetic dampers, hydraulic dampers, and metal friction plate dampers. Electromagnetic dampers require electrical infrastructure, making them expensive. Hydraulic dampers offer significant holding force errors, poor stability, and require strict sealing and suitable operating conditions. Metal friction plate dampers generate considerable noise during operation and experience significant wear over extended periods.

[0003] Application No. 2020204861227 discloses a small adjustable damper. A damping device is installed inside the housing. The damping device includes a damping plate and a friction plate. A gasket is installed between the damping plates. A pressure spring is also installed inside the housing. The pressure spring causes the gasket, damping plate and friction plate to press against each other. During use, the relative frictional motion generates a frictional resistance torque, which plays a resistance role.

[0004] However, in existing dampers, the friction plate, damping plate, and gasket are relatively independent components without a precisely positioned structure. They are only held together by the action of a pressure spring, which makes the components not compact enough. During use, the damping plate is prone to displacement and misalignment, thus affecting the stability of the overall structure. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a miniature damper to solve the problem that the damping plates are prone to displacement after long-term use, which affects the use of the damper.

[0006] To achieve the above objectives, this utility model provides a miniature damper, comprising a housing and a locking nut. The locking nut is disposed at one end of the housing. Multiple annular damping plates and multiple annular washers are disposed inside the housing. The damping plates are disposed between adjacent washers. A pressure spring is disposed between the uppermost washer and the locking nut. The surface of the washer is provided with a locking groove. The damping plate is installed in the locking groove. Multiple elastic friction protrusions are equidistantly arranged around the inner side of the locking groove. The elastic friction protrusions are in contact with the side of the damping plate.

[0007] A further improvement is that at least two damping plates and at least three gaskets are provided.

[0008] A further improvement is that a limiting groove is provided on the inner side of the housing, and a locking block is provided on the side of the gasket, with the locking block and the limiting groove being compatible.

[0009] A further improvement is that the pressure spring is a disc spring.

[0010] A further improvement is that the gasket is made of resin material.

[0011] A further improvement is that the inner wall of one end of the housing and the outer side of the locking nut are both provided with threads, and the locking nut is connected to the housing through the threads.

[0012] The beneficial effects of this utility model are as follows: by opening a locking groove on the gasket, the damping plate is positioned and locked between the two gaskets through the locking groove, which greatly improves the installation accuracy, reduces the offset of the damping plate, and also reduces the occurrence of damping plate displacement and misalignment during use, thus greatly improving the stability of the damper.

[0013] The damping plate is engaged in the engagement groove of the gasket. The gasket is pressed against the damping plate by a pressure spring, making them press tightly together. When the rotating shaft drives the damping plate to rotate, the relative movement between the damping plate and the gasket generates friction, and the rotating shaft will be subjected to a torque in the opposite direction, thereby achieving the effect of maintaining suspension or eliminating free travel. In addition, elastic friction protrusions are provided on the inner side of the engagement groove. The elastic friction protrusions squeeze the damping plate to generate friction. By providing friction in multiple directions, the contact area is increased, which effectively increases the total damping force, reduces lateral displacement, and improves the stability of the structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the damper structure according to an embodiment of the present invention;

[0016] Figure 2 This is an exploded view of the internal structure of the shell in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the shell structure of an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the damper in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the gasket structure according to an embodiment of the present invention;

[0020] Figure 6This is a schematic diagram of the structure of the gasket and damping block in the engaged state of an embodiment of this utility model.

[0021] The diagram is marked as follows:

[0022] 1. Housing; 2. Locking nut; 3. Damping plate; 4. Washer; 5. Pressure spring; 6. Engaging groove; 7. Elastic friction protrusion; 8. Limiting groove; 9. Locking block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1-6 As shown, this embodiment provides a miniature damper, including a housing 1 and a locking nut 2. The locking nut is disposed at one end of the housing 1. The inner wall of one end of the housing 1 and the outer side of the locking nut 2 are both provided with threads. The locking nut 2 is connected to the housing 1 by the threads. The housing 1 is formed by injection molding.

[0026] The housing 1 contains multiple annular damping plates 3 and multiple annular gaskets 4. There are at least two damping plates 3 and at least three gaskets 4. The damping plates 3 are positioned between adjacent gaskets 4, and the gaskets 4 and damping plates 3 are alternately stacked within the housing 1. A limiting groove 8 is provided on the inner side of the housing 1, and a locking block 9 is provided on the side of each gasket 4. The locking block 9 and the limiting groove 8 are compatible, and the gasket 4 is locked and positioned within the housing 1 through the cooperation of the limiting groove 8 and the locking block 9. A spline groove or polygonal hole is formed in the middle of the damping plate 3 for connection with a rotating shaft.

[0027] A pressure spring 5 is provided between the uppermost washer 4 and the locking nut 2. When the locking nut 2 is tightened to the limiting surface on the upper side of the limiting groove 8, the locking nut 2 presses the pressure spring 5 downward, causing the pressure spring 5 to be compressed. The compressed pressure spring 5 applies pressure to the washer 4 and the damping plate 3, causing the washer 4 and the damping plate 3 to press against each other. The pressure spring 5 is a disc spring, which ensures that the pressure spring 5 can apply pressure normally while reducing the space occupied by the pressure spring 5.

[0028] The surface of the gasket 4 has a locking groove 6, and the damping plate 3 is installed in the locking groove 6. The damping plate 3 is precisely positioned and installed with the gasket 4 through the locking groove 6. The limiting effect of the locking groove 6 reduces the displacement of the damping plate 3 during use. Multiple elastic friction protrusions 7 are equidistantly arranged around the inner side of the locking groove 6. The elastic friction protrusions 7 fit against the side of the damping plate 3, and the elastic friction protrusions 7 squeeze the damping plate 3, generating friction when the damping plate 3 rotates. The pressure spring 5 compresses the gasket 4 and the damping plate 3 to generate friction, and the elastic friction protrusions 7 squeeze the damping plate 3 to generate friction. The multi-directional friction provides a better resistance effect, improves vibration control, and enhances the stability of the structure.

[0029] The gasket 4 is made of resin material, has a thin thickness, and a stable coefficient of friction.

[0030] In use, the pressure spring 5 applies pressure to the pad 4 and the damping plate 3, causing the pad 4 and the damping plate 3 to press against each other. The damping plate 3 is engaged in the engagement groove 6 of the pad 4, which limits the position of the damping plate 3. The elastic friction protrusion 7 in the engagement groove 6 presses against the damping plate 3 from the side. The pad 4 is fixed in position by the locking block 9 in the limiting groove 8. The rotating shaft drives the damping plate 3 to rotate. The relative movement between the pad 4 and the damping plate 3 will generate friction. The rotating shaft will be subjected to a torque in the opposite direction, thereby achieving the effect of maintaining suspension or eliminating free travel.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A miniature damper, comprising a housing (1) and a locking nut (2), wherein the locking nut is disposed at one end of the housing (1), characterized in that, The housing (1) is provided with multiple annular damping plates (3) and multiple annular gaskets (4). The damping plates (3) are arranged between adjacent gaskets (4). A pressure spring (5) is arranged between the uppermost gasket (4) and the locking nut (2). The surface of the gasket (4) is provided with a locking groove (6). The damping plate (3) is installed in the locking groove (6). Multiple elastic friction protrusions (7) are arranged equidistantly around the inner side of the locking groove (6). The elastic friction protrusions (7) are in contact with the side of the damping plate (3).

2. A miniature damper according to claim 1, characterized in that, At least two damping plates (3) and at least three gaskets (4) are provided.

3. A miniature damper according to claim 1, characterized in that, The inner side of the housing (1) is provided with a limiting slot (8), and the side of the gasket (4) is provided with a locking block (9), which is compatible with the limiting slot (8).

4. A miniature damper according to claim 1, characterized in that, The pressure spring (5) is a disc spring.

5. A miniature damper according to claim 1, characterized in that, The gasket (4) is made of resin material.

6. A miniature damper according to claim 1, characterized in that, The inner wall of one end of the housing (1) and the outer side of the locking nut (2) are both provided with threads, and the locking nut (2) is connected to the housing (1) by the threads.

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