A new type of damper

Abstract

The present invention relates to a novel damper, comprising a wave spring and a damper housing, wherein the wave spring is placed at the bottom of the damper housing, the lower friction plate is placed above the wave spring, a slot is provided on the end edge of the lower friction plate, the lower friction plate is fitted in the damper housing through the slot, the friction plate is placed above the lower friction plate, the upper friction plate is installed above the friction plate, a slot is also provided on the end edge of the upper friction plate, the upper friction plate is fitted in the damper housing through the slot, wherein the cover plate adjusts the upper friction plate, the friction plate, the lower friction plate and the wave spring to a set damping force after pre-pressing, and then is fixed to the inner wall of the damper housing by laser welding or hot riveting process. The damper has a simple and compact structure, is easy to assemble, and has adjustable output resistance. Different damping effects can be obtained by adjusting the pressing stroke, which is convenient for product platform management, and can realize precise control of damping force to meet the high-precision requirements of special customers.

Description

Technical Field

[0001] The invention relates to the technical field of damping components, and in particular to a novel damper. Background Art

[0002] We call the various frictions and other obstacles that attenuate free vibrations damping. The "special" components placed on the structural system that can provide resistance to movement and dissipate movement energy are called dampers. Traditional dampers often use grease as a medium, using the viscosity of the grease to hinder the movement of the internal rotating body to achieve a damping effect, but this type of damper has the following main defects: 1) Grease medium, high sealing requirements, and complex assembly; 2) Affected by the size and state of the parts, the damping force cannot be accurately controlled; 3) It is easily affected by the speed, temperature, etc., and the damping force output under different working conditions has a very large deviation. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a new damper, which can output different damping forces by adjusting the assembly process parameters, and can also eliminate the negative impact of part dimensional tolerances, thereby achieving precise control of the damping force. At the same time, the output resistance of the damper is less affected by factors such as rotation speed and temperature, and has strong scalability and wide application.

[0004] The present invention adopts the following technical scheme: a new type of damper, comprising: a cover plate, an upper friction plate, a friction plate, a lower friction plate, a wave spring and a damper housing, wherein the wave spring is placed at the bottom of the damper housing, the lower friction plate is placed above the wave spring, a card slot is provided on the end edge of the lower friction plate, the lower friction plate is mounted in the damper housing through the card slot, the friction plate is placed above the lower friction plate, a serrated through hole is provided on the inner side of the friction plate for docking with an external driving mechanism, the upper friction plate is mounted above the friction plate, a card slot is also provided on the end edge of the upper friction plate, the upper friction plate is mounted in the damper housing through the card slot, wherein the cover plate adjusts the upper friction plate, the friction plate, the lower friction plate and the wave spring to a set damping force after pre-compression, and then is fixed to the inner wall of the damper housing by laser welding or hot riveting process.

[0005] In the above technical solution, the friction plate is pre-set between the lower friction plate and the upper friction plate. Under the action of the wave spring stress, the lower friction plate and the upper friction plate will tightly clamp the friction plate. When the friction plate is driven by external force, friction resistance will be generated between the friction plate and the friction plate, thereby providing damping force. However, due to the differences in the states of parts in different batches, such as the friction coefficient of the friction plate, the elastic force of the spring, and the size of other parts, there will be deviations. When assembling parts of different batches and states together, it will inevitably lead to: the damping force of the damper assembled with parts from different batches will have deviations. For this reason, the present invention designs a damping adjustable design, adding a cover plate to the upper end of the upper friction plate, and continuously adjusting the preload F applied to the cover plate, while testing the damping force until the ideal damping force is obtained and the preload cover plate is stopped, and then the cover plate is connected to the damper housing by laser welding or hot riveting. This can eliminate the influence of the states of parts in different batches to obtain accurate damping force effects. When customers have different damping force requirements for different projects, they only need to adjust the preload F. The same group of parts can obtain damping forces with different effects by adjusting process parameters, realizing product platformization, reducing the number of new parts, and greatly reducing product development cycle and cost. Compared with grease dampers, this damper design greatly reduces the impact on temperature and speed, and can be expanded to more working conditions and fields.

[0006] Preferably, the damper housing is made of high-strength plastic material.

[0007] Preferably, the friction plate is made of metal material or carbon fiber material.

[0008] Preferably, the upper friction plate and the lower friction plate are both made of high-strength wear-resistant steel material.

[0009] Preferably, the cover plate is a high-strength plastic plate.

[0010] The beneficial effects of a new type of damper provided by the present invention are: the damper has a simple and compact structure, is easy to assemble, and has adjustable output resistance. Different damping effects can be obtained simply by adjusting the pressing stroke, which is convenient for product platform management and can achieve precise control of the damping force to meet the high-precision requirements of special customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure explosion of the adjustable damper in the present invention.

[0012] Figure 2 It is an assembly cross-sectional view of the adjustable damper in the present invention.

[0013] In the figure: 1, cover plate; 2, upper friction plate; 3, friction plate; 4, lower friction plate; 5, wave spring; 6, damper housing. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0015] Reference Figure 1 and Figure 2 As shown, a novel damper comprises: a cover plate 1, an upper friction plate 2, a friction plate 3, a lower friction plate 4, a wave spring 5 and a damper housing 6, wherein the wave spring 5 is placed at the bottom of the damper housing 6, the damper housing 6 is a cylinder formed by high-strength PA plastic in one piece, the lower friction plate 4 is placed above the wave spring 5, a card slot is provided on the end edge of the lower friction plate 4, the lower friction plate 4 is fitted in the damper housing 6 through the card slot, the friction plate 3 is placed above the lower friction plate 4, and a serrated through hole is provided on the inner side of the friction plate 3 for docking with an external driving mechanism, The friction plate 3 is made of lightweight and highly wear-resistant carbon fiber material. The upper friction plate 2 is installed above the friction plate 3. A card slot is also provided on the end edge of the upper friction plate 2. The upper friction plate 2 is installed in the damper housing 6 through the card slot. The upper friction plate 2 and the lower friction plate 4 are both made of high-strength wear-resistant steel. The cover plate 1 adjusts the upper friction plate 2, the friction plate 3, the lower friction plate 4 and the wave spring 5 to the set damping force after pre-pressing, and then fixes them on the inner wall of the damper housing 6 by laser welding or hot riveting process. The cover plate 1 is a high-strength PA plastic plate.

[0016] In this embodiment, in actual operation, the friction plate 3 is preset between the lower friction plate 4 and the upper friction plate 2. Under the stress of the wave spring 5, the lower friction plate 4 and the upper friction plate 2 will tightly clamp the friction plate 3. When the friction plate 3 is driven by an external force, friction resistance will be generated between the friction plate 3 and the friction plate, thereby providing damping force. However, due to differences in the states of parts from different batches, such as the friction coefficient of the friction plate 3, the elastic force of the wave spring 5, and the size of other parts, there will be deviations. When assembling parts from different batches and states together, it is inevitable that the damping force of the damper assembled from parts from different batches will have deviations. To this end, the present invention has designed a damping adjustable design, adding a cover plate 1 to the upper end of the upper friction plate 2, and continuously adjusting the preload F applied to the cover plate 1, while testing the damping force, until the ideal damping force is obtained and the preload of the cover plate 1 is stopped, and then the cover plate 1 is connected to the damper housing 6 by laser welding or hot riveting and other processes, so as to eliminate the influence of the status of parts from different batches, so as to obtain an accurate damping force effect. When customers have different damping force requirements for different projects, they only need to adjust the preload F. The same group of parts can obtain damping forces with different effects by adjusting the process parameters, thus realizing product platformization, reducing the number of new parts, and greatly reducing the product development cycle and cost. Compared with grease dampers, this damper design greatly reduces the influence on temperature and rotation speed, and can be expanded to more working conditions and fields.

[0017] The damper has a simple and compact structure, is easy to assemble, and has adjustable output resistance. Different damping effects can be obtained simply by adjusting the pressing stroke, which facilitates platform management of products and enables precise control of the damping force to meet the high-precision requirements of special customers.

[0018] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A new type of damper, characterized in that include: A cover plate, an upper friction plate, a friction plate, a lower friction plate, a wave spring and a damper housing, wherein the wave spring is placed at the bottom of the damper housing, the lower friction plate is placed above the wave spring, a slot is provided on the end edge of the lower friction plate, the lower friction plate is mounted in the damper housing through the slot, the friction plate is placed above the lower friction plate, a serrated through hole is provided on the inner side of the friction plate for docking with an external driving mechanism, the upper friction plate is mounted above the friction plate, a slot is also provided on the end edge of the upper friction plate, the upper friction plate is mounted in the damper housing through the slot, wherein the cover plate adjusts the upper friction plate, the friction plate, the lower friction plate and the wave spring to the set damping force after pre-compression, and then is fixed to the inner wall of the damper housing by laser welding or hot riveting process.

2. The novel damper according to claim 1 is characterized in that: The damper shell is made of high-strength plastic material.

3. The novel damper according to claim 1 is characterized in that: The friction plate is made of metal material or carbon fiber material.

4. The novel damper according to claim 1 is characterized in that: The upper friction plate and the lower friction plate are both made of high-strength wear-resistant steel material.

5. The novel damper according to claim 1 is characterized in that: The cover plate is a high-strength plastic plate.

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