A variable damping speed type damper

Abstract

The invention discloses a variable damping speed type damper, comprising a sleeve component, a screw component, a brake disc, a first damping component and a second damping component; the screw component moves in the sleeve component; the brake disc is connected to the screw component; the first damping component is located on both sides of the brake disc, and the brake disc and the first damping component form a first friction pair; an elastic component is provided between the second damping component and the brake disc, and the brake disc and the second damping component form a second friction pair; when an external load causes the sleeve component and the screw component of the variable damping speed type damper to move relative to each other, the brake disc is driven to rotate, and a constant first damping force is generated with the first damping component; at the same time, when the external load speed increases, the rotation speed of the driving brake disc increases, and the elastic component is elongated and deformed due to the centrifugal force, so that the interaction force between the brake disc and the second damping component is increased, thereby increasing the second damping force, so that variable damping is provided according to external loads of different speeds.

Description

Technical Field

[0001] The invention relates to the technical field of structural vibration reduction, and in particular to a variable damping speed type damper. Background Art

[0002] Dampers can effectively reduce the vibration response of structures and greatly improve the seismic performance of structures. However, traditional dampers are not energy efficient, have low energy conversion rates, and cannot cope with large earthquake inputs. In severe cases, they may cause the damper to fail. Traditional dampers can no longer meet the performance requirements of modern structural vibration control. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a variable damping speed type damper which can exert better anti-seismic performance.

[0004] According to a first aspect of the present invention, there is provided a variable damping speed type damper, comprising: a sleeve component, a screw component, a brake disc, a plurality of first damping components and a plurality of second damping components; wherein the screw component is arranged in the sleeve component for movement; wherein the brake disc is arranged in the sleeve component, the brake disc is connected to the screw component, and the screw component drives the brake disc to rotate; wherein each first damping component is arranged in the sleeve component, and each first damping component is located on both sides of the brake disc, and when the screw component drives the brake disc to rotate, the brake disc and the first damping component constitute a first friction pair and generate a first damping force; wherein each second damping component is arranged in the sleeve component, and each second damping component is arranged outside the side wall of the brake disc around the axis of the brake disc, and an elastic component is arranged between the second damping component and the brake disc, and when the screw component drives the brake disc to rotate, the brake disc and the second damping component constitute a second friction pair and generate a second damping force, and the elastic component is extended as the centrifugal force generated by the rotation of the brake disc increases, so that the second damping force increases.

[0005] Beneficial effect: This variable damping speed type damper senses the effect of vibration force through the screw component. When the screw component and the sleeve component undergo relative linear motion, the screw component drives the brake disc to rotate, and generates a constant first damping force with the first damping component. At the same time, as the vibration force increases, the rotation speed of the brake disc will increase, and the elastic component connected to the brake disc will stretch and deform, thereby increasing the interaction force between the brake disc and the second damping component, thereby increasing the second damping force between the two. It can effectively cope with external load inputs at different speeds and improve the energy conversion rate. The damper can achieve variable damping according to external loads at different speeds, so that the structure can have better seismic performance.

[0006] According to the variable damping speed type damper of the first aspect of the present invention, the elastic component includes a pressure block and an elastic connecting member, one end of the elastic connecting member is connected to the brake disc, the other end of the elastic connecting member is connected to the pressure block, and the pressure block is in contact with the second damping component.

[0007] According to the variable damping speed type damper of the first embodiment of the present invention, the first damping component includes a base, a friction plate and a spring, the base is arranged in the sleeve component, the spring is arranged between the base and the friction plate, and the friction plate and the brake disc constitute a first friction pair.

[0008] According to the variable damping speed damper of the first embodiment of the present invention, the second damping component has the same structure as the first damping component.

[0009] According to the variable damping speed damper of the first embodiment of the present invention, the screw rod component includes a ball nut and a screw rod, the ball nut is arranged on the screw rod, the screw rod drives the ball nut to rotate, and the ball nut is connected to the brake disc.

[0010] According to the variable damping speed type damper of the first embodiment of the present invention, a connecting disk is provided on the ball nut, and the brake disk is connected to the connecting disk by bolts.

[0011] According to the variable damping speed damper of the first embodiment of the present invention, one end of the screw rod extends into the sleeve component, and the other end of the screw rod is provided with a first earring.

[0012] According to the variable damping speed damper of the first embodiment of the present invention, one end of the sleeve component is provided with a hole capable of accommodating the screw rod, and the other end of the sleeve component is provided with a second earring.

[0013] According to the variable damping speed damper of the first embodiment of the present invention, a limit block is provided at one end of the screw rod, and a limit plate cooperating with the limit block is provided in the sleeve component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0015] Figure 1 A front view of an embodiment of the present invention;

[0016] Figure 2 It is a left view of an embodiment of the present invention. DETAILED DESCRIPTION

[0017] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0021] Reference Figure 1-2A variable damping speed type damper comprises: a sleeve component 10, a screw component 20, a brake disc 60, a plurality of first damping components 30 and a plurality of second damping components 50; wherein the screw component 20 is arranged in the sleeve component 10 for movement, and the sleeve component 10 and the screw component 20 undergo relative linear motion; wherein the brake disc 60 is arranged in the sleeve component 10, the brake disc 60 is connected to the screw component 20, and the screw component 20 drives the brake disc 60 to rotate; wherein each first damping component 30 is arranged in the sleeve component 10, each first damping component 30 is located on both sides of the brake disc 60, and the screw component 20 drives the brake disc 60 to rotate When the moving disc 60 rotates, the brake disc 60 and the first damping component 30 form a first friction pair and generate a first damping force; wherein each second damping component 50 is arranged in the sleeve component 10, and each second damping component 50 is arranged outside the side wall of the brake disc 60 around the axis of the brake disc 60, and an elastic component 40 is provided between the second damping component 50 and the brake disc 60. When the screw component 20 drives the brake disc 60 to rotate, the brake disc 60 and the second damping component 50 form a second friction pair and generate a second damping force, and the elastic component 40 is extended as the centrifugal force generated by the rotation of the brake disc 60 increases, so that the second damping force increases. This variable damping speed type damper senses the effect of vibration force through the screw component 20. When the screw component 20 and the sleeve component 10 undergo relative linear motion, the screw component 20 drives the brake disc 60 to rotate, and generates a constant first damping force with the first damping component 30 to reduce the effect of the vibration force. At the same time, as the vibration force increases, the rotation speed of the brake disc 60 will increase, and the elastic component 40 connected to the brake disc 60 will elongate and deform, thereby increasing the interaction force between the brake disc 60 and the second damping component 50, thereby increasing the second damping force between the two, which can effectively cope with external load inputs of different speeds and improve the energy conversion rate. The damper can achieve variable damping according to external loads of different speeds, so that the structure can exert better seismic performance.

[0022] In this embodiment, the elastic component 40 includes a pressing block 41 and an elastic connecting member 42, one end of the elastic connecting member 42 is connected to the brake disc 60, and the other end of the elastic connecting member 42 is connected to the pressing block 41, and the pressing block 41 is in contact with the second damping component 50. The elastic connecting member 42 is deformed by centrifugal force, thereby increasing the interaction force between the pressing block 41 and the second damping component 50, converting the mechanical kinetic energy of the second damping component 50 into heat energy, thereby achieving better anti-seismic performance.

[0023] In this embodiment, the elastic connecting member 42 includes but is not limited to a spring, an elastic band, an elastic column, etc. The pressing block 41 is a block structure with a certain mass.

[0024] In this embodiment, the first damping component 30 includes a base 33, a friction plate 31 and a spring 32, the base 33 is arranged in the sleeve component 10, the spring 32 is arranged between the base 33 and the friction plate 31, and the friction plate 31 and the brake disc 60 form a first friction pair. Preferably, the second damping component 50 has the same structure as the first damping component 30.

[0025] In this embodiment, the screw component 20 includes a ball nut 22 and a screw 21. The ball nut 22 is arranged on the screw 21. The screw 21 drives the ball nut 22 to rotate. The ball nut 22 is connected to the brake disc 60. Preferably, a connecting disc 212 is provided on the ball nut 22. The brake disc 60 and the connecting disc 212 are connected by bolt flanges to ensure more stable installation. The ball nut 22 is fixedly connected to the brake disc 60 to ensure a reasonable structure.

[0026] In this embodiment, one end of the screw rod 21 extends into the sleeve component 10, and the other end of the screw rod 21 is provided with a first earring 23. One end of the sleeve component 10 is provided with a hole capable of accommodating the screw rod 21, and the other end of the sleeve component 10 is provided with a second earring 12. The first earring 23 and the second earring 12 are used to connect with the structure to ensure installation and positioning. A limit block 211 is provided at one end of the screw rod 21, and a limit plate 11 cooperating with the limit block 211 is provided in the sleeve component 10. The movement stroke of the screw rod 21 is limited to prevent the first damping component 30 and the second damping component 50 from failing.

[0027] In this embodiment, the brake disc 60 is circular, the screw rod 21 is vertically arranged at the center of the brake disc 60, and the cross-sectional shape of the sleeve component 10 is approximately "T"-shaped, so as to accommodate the screw rod 21 and the brake disc 60 at the same time.

[0028] When the variable damping speed type damper undergoes relative linear motion with the sleeve component 10 and the screw component 20, the ball nut 22 drives the connecting plate 212 to rotate. Since the brake disc 60 and the connecting plate 212 are kept in a fastened state by bolts, the brake disc 60 rotates synchronously. When the brake disc 60 rotates, it forms a pair of first friction pairs with the friction plate 31 in the first damping component 30, generating a constant first damping force on the rotation of the brake disc 60, and at the same time forms a pair of second friction pairs with the friction plate 31 in the second damping component 50. When the rotation speed of the brake disc 60 increases, the elastic connecting member 42 connected to the brake disc 60 is subjected to an increased centrifugal force, causing the elastic connecting member 42 to be elongated and deformed, so that the interaction force between the pressure block 41 and the friction plate 31 in the second damping component 50 is enhanced, thereby increasing the damping between the two. The conversion efficiency of mechanical kinetic energy into heat energy is improved through the cooperation of the constant first damping force and the variable second damping force. The control principle is scientific, the structural layout is clear, and the seismic performance of the structure can be significantly improved.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A variable damping speed type damper, characterized in that: include: A sleeve component, a screw component, a brake disc, a plurality of first damping components and a plurality of second damping components; wherein the screw component is arranged to move inside the sleeve component; The brake disc is arranged in the sleeve component, the brake disc is connected to the screw component, and the screw component drives the brake disc to rotate; Each of the first damping components is disposed in the sleeve component, and each of the first damping components is located on both sides of the brake disc. When the screw component drives the brake disc to rotate, the brake disc and the first damping component form a first friction pair and generate a first damping force. Each of the second damping components is arranged in the sleeve component, and each of the second damping components is arranged outside the side wall of the brake disc around the axis of the brake disc, and an elastic component is arranged between the second damping component and the brake disc, and when the screw component drives the brake disc to rotate, the brake disc and the second damping component form a second friction pair and generate a second damping force, and the elastic component is extended as the centrifugal force generated by the rotation of the brake disc increases, so that the second damping force increases; The elastic component comprises a pressing block and an elastic connecting member, one end of the elastic connecting member is connected to the brake disc, the other end of the elastic connecting member is connected to the pressing block, and the pressing block is in contact with the second damping component; The first damping component comprises a base, a friction plate and a spring. The base is arranged in the sleeve component. The spring is arranged between the base and the friction plate. The friction plate and the brake disc form a first friction pair.

2. The variable damping speed type damper according to claim 1, characterized in that: The second damping component has the same structure as the first damping component.

3. The variable damping speed type damper according to claim 1, characterized in that: The screw rod component comprises a ball nut and a screw rod, wherein the ball nut is arranged on the screw rod, the screw rod drives the ball nut to rotate, and the ball nut is connected to the brake disc.

4. The variable damping speed type damper according to claim 3, characterized in that: The ball nut is provided with a connecting disk, and the brake disk is connected to the connecting disk via bolts.

5. The variable damping speed type damper according to claim 3, characterized in that: One end of the screw rod extends into the sleeve component, and the other end of the screw rod is provided with a first earring.

6. The variable damping speed type damper according to claim 5, characterized in that: One end of the sleeve component is provided with a hole capable of accommodating the screw rod, and the other end of the sleeve component is provided with a second earring.

7. The variable damping speed type damper according to claim 6, characterized in that: A limiting block is arranged at one end of the screw rod, and a limiting plate cooperating with the limiting block is arranged in the sleeve component.

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