A spatial paddle inerter device

Abstract

The application relates to a space paddle type inertial device, which comprises a piston driving rod, a flywheel, a rotary damper and a space paddle type rotating shaft; the space paddle type rotating shaft comprises a spherical hinge, a bearing and a connecting rod which are sequentially connected; the flywheel and the rotary damper are connected with two ends of the connecting rod respectively, and the piston driving rod is connected with the spherical hinge; the flywheel and the rotary damper rotate around the same axis, the piston driving rod moves horizontally under the drive of the outside world, the flywheel and the rotary damper are driven to rotate by the space paddle type rotating shaft, and the translation of the piston driving rod is converted into the rotation of the flywheel and the rotary damper by the space paddle type rotating shaft. The rotation of the flywheel realizes mass amplification. The application realizes mass amplification, damping energy consumption, and has the advantages of simple mechanical form, flexible installation, easy implementation, high-efficiency vibration reduction, simple structure, low cost, convenient maintenance and high energy dissipation efficiency compared with the prior art.

Description

TECHNICAL FIELD

[0001] The application relates to the field of high-end manufacturing and wind power generation, in particular to a space paddle type inertial damper device. BACKGROUND

[0002] In the wind power generation industry, there are various mechanisms in the field of vibration control technology that can simulate similar functions, such as magneto-rheological dampers, hydraulic viscous dampers, ball screw type inertial dampers, coordinated liquid type inertial dampers and spiral gas type inertial dampers. However, the existing technology has problems such as limited shock absorption effect and complex structure. The magneto-rheological damper is easily affected in a high temperature environment and has a high price. The hydraulic viscous damper is complex and needs to be maintained and replaced with hydraulic oil. The ball screw type inertial damper has large friction and a limited service life. The coordinated liquid type inertial damper has a limited capacity and its effect is affected by temperature. The spiral gas type inertial damper needs additional space and its vibration frequency is affected by the environment. SUMMARY

[0003] The application aims to overcome the defects of the prior art, such as limited shock absorption effect and complex structure, and provides a space paddle type inertial damper device that can efficiently reduce vibration, has a simple structure, low cost, is easy to maintain and has high energy dissipation efficiency.

[0004] The application can be achieved by the following technical solutions:

[0005] The application has significant advantages through the synergistic effect of the inertial element and the damping element. Compared with the magneto-rheological damper, the application does not need to rely on external magnetic field control, and the system structure is simpler and the cost is lower. Compared with the hydraulic viscous damper, the application has a simple structure, small size and convenient maintenance through the translation-rotation conversion mechanism and the flywheel mass amplification, and the energy consumption control is more optimized. Compared with other inertial damper devices, the application realizes the dual effect of inertial and damping, enhances the mass effect and energy dissipation efficiency, and has better comprehensive performance. In summary, the design of the application not only realizes the high-efficiency vibration reduction effect that the prior art cannot achieve, but also has the significant advantages of simple structure, low cost, convenient maintenance and high energy dissipation efficiency.

[0006] The application can realize the parallel connection of the inertial element and the damping element. The action rod realizes horizontal translation motion into space rotation motion through the space paddle type actuator mechanism, driving the upper shaft to rotate. The flywheel attached to the upper shaft realizes the apparent mass amplification effect, and the lower part is connected to the rotary viscous fluid damping cavity. The rotary viscous fluid damping cavity is a closed cavity composed of an oil cylinder and rotating blades, and is filled with damping medium. The damping medium realizes relative flow under the push of the rotating blades, converts vibration energy into heat to achieve the vibration reduction effect.

[0007] This invention provides a space paddle-type inertial-capacitance device, comprising: a piston actuator, a flywheel, a rotational damper, and a space paddle-type rotating shaft;

[0008] The space paddle shaft includes a ball joint, a bearing, and a connecting rod connected in sequence; the flywheel and the rotation damper are respectively connected to both ends of the connecting rod, and the piston actuating rod is connected to the ball joint;

[0009] The flywheel and rotary damper rotate around the same axis. The piston actuator moves horizontally under external drive, and the flywheel and rotary damper are rotated by a space paddle shaft. The space paddle shaft converts the translational motion of the piston actuator into the rotation of the flywheel and rotary damper. The rotation of the flywheel achieves improved efficiency. This invention achieves improved efficiency, reduces damping energy consumption, and has a simple mechanical form, flexible installation, and is easy to implement.

[0010] Furthermore, the rotary damper includes a sealed chamber and a rotating blade disposed within the sealed chamber.

[0011] Furthermore, the sealed cavity is filled with a damping medium.

[0012] Furthermore, the rotating blades rotate around the same axis as the flywheel within the sealed chamber.

[0013] Furthermore, the rotating blades agitate the damping medium, allowing the damping medium to dissipate energy through small holes on the rotating blades.

[0014] Furthermore, the output of the device consists of two parts: the output of the flywheel and the output of the rotating damper. The output of the flywheel is proportional to the relative acceleration between the two endpoints, and the output of the rotating damper is proportional to the relative velocity between the two endpoints. The proportionality coefficients are the inertial capacitance coefficient and the damping coefficient, respectively.

[0015] Furthermore, the inertial capacitance coefficient and damping coefficient of the inertial capacitance device are derived as follows:

[0016] The axial force on the piston actuator rod is Its displacement is The mass of the flywheel is The flywheel radius is The angular velocities of the rotating blades and the flywheel are the same. The rotating blades are considered to be in the shape of a straight plate, with a length of... Width is The distance from the center of the small hole to the axis of rotation is Ignore energy loss caused by device weight and friction;

[0017] The torque of the device is expressed as

[0018] (1)

[0019] The torque provided by the flywheel is The torque provided by the rotary damper is

[0020] Further, the moment of inertia of the flywheel is

[0021] (2)

[0022] The torque provided by the flywheel is represented as

[0023] (3)

[0024] The hydraulic torque of the rotating vane in the rotary damper is represented as

[0025] (4)

[0026] wherein, is the liquid power at the radius of the rotating vane

[0027] Further, is estimated in the form of the Morison equation as follows:

[0028] (5)

[0029] wherein is the density of the damping medium, is the inertia coefficient of the rotating vane, is the damping coefficient; and are the volume and area of the rotating vane within the unit radius, respectively; and are the tangential acceleration and velocity of the hole position on the rotating vane, respectively.

[0030] Further, the torque of the rotary damper is represented as

[0031] (6)

[0032] By bringing formula (3) and formula (6) into formula (1), it is calculated that

[0033] (7)

[0034] The output of the space paddle inertia device can be determined by the angle and the distance between the clamping plate of the space paddle rotating shaft and the rotating axis, and the output is represented as

[0035] .​

[0036] Compared with the prior art, the present application has the following advantages:

[0037] (1) The present application enhances the mass strong synergistic effect of the inertial element and optimizes the energy dissipation control effect of the damping element under the synergistic action of the inertial element and the damping element, which has a significant advantage over the prior art.

[0038] (2) The present application realizes more efficient damping and energy dissipation effect through the innovative design of the inertial device, which improves the energy dissipation efficiency compared with the traditional technology.

[0039] (3) The present application innovatively applies the space crankshaft structure to the inertial device, so that the flywheel on the inertial device can rotate in the same direction, obtaining more stable mass strong synergistic effect.

[0040] (4) The present application adopts a simple mechanical structure design, which greatly simplifies the system structure by connecting the inertial element and the damping element in parallel, making it more suitable for practical engineering application and improving the practicality and reliability. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic diagram of a space paddle inertial device;

[0042] Figure 2 is a structural schematic diagram of a rotary damper;

[0043] Figure 3 is a structural schematic diagram of a space paddle rotating shaft.

[0044] The drawings show that: 1-piston actuator rod; 2-flywheel; 3-rotary damper; 4-space paddle rotating shaft; 301-sealing chamber; 302-rotary blade; 401-ball hinge; 402-bearing; 403-connecting rod. DETAILED DESCRIPTION

[0045] The present application will be described in detail below in conjunction with the drawings and specific embodiments. In this technical solution, if the component model, material name, connection structure, control method, algorithm and other features are not explicitly stated, they are considered as common technical features disclosed in the prior art.

[0046] Example 1

[0047] This embodiment provides a space paddle inertial device, as shown in Figure 1 , which comprises a piston actuator rod 1, a flywheel 2, a rotary damper 3 and a space paddle rotating shaft 4.

[0048] As shown in Figure 3As shown, the space paddle shaft 4 includes a ball joint 401, a bearing 402 and a connecting rod 403 connected in sequence; the flywheel 2 and the rotation damper 3 are respectively connected to the two ends of the connecting rod 403, and the piston actuating rod 1 is connected to the ball joint 401.

[0049] The flywheel 2 and the rotary damper 3 rotate around the same axis. The piston actuator 1 moves horizontally under external drive. The space paddle-type rotating shaft 4 drives the flywheel 2 and the rotary damper 3 to rotate, converting the translational motion of the piston actuator 1 into the rotation of the flywheel 2 and the rotary damper 3. The rotation of the flywheel 2 achieves improved mass efficiency. This invention achieves improved mass efficiency, reduces damping energy consumption, and has a simple mechanical form, flexible installation, and is easy to implement.

[0050] like Figure 2 As shown, in a specific embodiment, the rotary damper 3 includes a sealed chamber 301 and a rotating blade 302 disposed within the sealed chamber 301.

[0051] In a specific embodiment, the sealed chamber 301 is filled with a damping medium.

[0052] In a specific embodiment, the rotating blade 302 rotates around the same axis as the flywheel 2 within the sealed chamber 301.

[0053] In a specific embodiment, the rotating blade 302 agitates the damping medium, causing the damping medium to dissipate energy through small holes on the rotating blade 302.

[0054] In a specific embodiment, the output of the device consists of two parts: the output of the flywheel 2 and the output of the rotary damper 3. The output of the flywheel 2 is proportional to the relative acceleration between the two endpoints, and the output of the rotary damper 3 is proportional to the relative velocity between the two endpoints. The proportionality coefficients are the inertial capacitance coefficient and the damping coefficient, respectively.

[0055] In a specific embodiment, the inertial capacitance coefficient and damping coefficient of the inertial capacitance device are derived as follows:

[0056] The axial force on piston actuator rod 1 is Its displacement is The mass of flywheel 2 is The radius of flywheel 2 is The angular velocities of the rotating blade 302 and the flywheel 2 are the same. The rotating blade 302 is considered to be in the shape of a straight plate, with a length of... Width is The distance from the center of the small hole to the axis of rotation is Ignore energy loss caused by device weight and friction;

[0057] The torque of the device is expressed as

[0058] (1)

[0059] The torque of flywheel 2, The torque provided to the rotary damper 3;

[0060] The moment of inertia of flywheel 2 is

[0061] (2)

[0062] The torque provided by flywheel 2 is expressed as

[0063] (3)

[0064] The hydraulic torque of the rotating blade 302 in the rotating damper 3 is expressed as:

[0065] (4)

[0066] in, For rotating blades Fluid dynamics at the radius.

[0067] The estimate using the Morison equation is as follows:

[0068] (5)

[0069] in The density of the damping medium, The coefficient of inertia of the rotating blade 302. The damping coefficient; and These are the volume and area of ​​the rotating blade 302 per unit radius, respectively. and These are the tangential acceleration and velocity at the small hole position on the rotating blade 302, respectively.

[0070] Substituting equation (5) into equation (4), the torque of the rotary damper 3 is expressed as:

[0071] (6)

[0072] Substituting formulas (3) and (6) into formula (1), we obtain the following calculation:

[0073] (7)

[0074] The output of the space propeller inertial device can be determined by the angle between the clamping plate of the space propeller shaft 4 and the axis of rotation. and distance The decision is made, and the effort is expressed as follows:

[0075] .

[0076] Components not specifically described in this example are existing components that can be purchased in the open market.

[0077] The above description of the embodiments is for the purpose of enabling one of ordinary skill in the art to make and use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles described herein can be applied to other embodiments without the use of the inventive faculty. Thus, the present invention is not intended to be limited to the embodiments described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A space paddle-type inertial capacitive device, characterized in that, include: Piston actuator (1), flywheel (2), rotary damper (3) and space paddle shaft (4); The space paddle shaft (4) includes a ball joint (401), a bearing (402) and a connecting rod (403) connected in sequence; the flywheel (2) and the rotation damper (3) are respectively connected to the two ends of the connecting rod (403), and the piston actuating rod (1) is connected to the ball joint (401); The flywheel (2) and the rotary damper (3) rotate around the same axis. The piston actuator (1) moves horizontally under external drive. The flywheel (2) and the rotary damper (3) are driven to rotate by the space paddle shaft (4). The translation of the piston actuator (1) is converted into the rotation of the flywheel (2) and the rotary damper (3) by the space paddle shaft (4). The rotary damper (3) includes a sealed chamber (301) and a rotating blade (302) disposed in the sealed chamber (301); the sealed chamber (301) is filled with a damping medium; the rotating blade (302) rotates in the sealed chamber (301) and the flywheel (2) around the same axis; the rotating blade (302) agitates the damping medium, so that the damping medium dissipates energy through the small holes on the rotating blade (302); The output of the device consists of two parts: the output of the flywheel (2) and the output of the rotating damper (3). The output of the flywheel (2) is proportional to the relative acceleration between the two ends, and the output of the rotating damper (3) is proportional to the relative velocity between the two ends. The proportionality coefficients are the inertial capacitance coefficient and the damping coefficient, respectively.

2. The space paddle-type inertial capacitive device according to claim 1, characterized in that, The inertial coefficient and damping coefficient of the inertial-capacitive device are derived as follows: The axial force on the piston actuator rod (1) is Its displacement is The mass of the flywheel (2) is The radius of the flywheel (2) is The angular velocities of the rotating blade (302) and the flywheel (2) are the same. The rotating blade (302) is considered to be in the shape of a straight plate, with a length of... Width is The distance from the small hole to the center of the rotating shaft is Ignore energy loss caused by device weight and friction; The torque of the device is expressed as (1) The torque of the flywheel (2) The torque provided to the rotating damper (3).

3. A space paddle-type inertial capacitive device according to claim 2, characterized in that, The moment of inertia of the flywheel (2) is (2) The torque provided by the flywheel (2) is expressed as (3) The hydraulic torque of the rotating blade (302) in the rotating damper (3) is expressed as: (4) in, For rotating blades Fluid dynamics at the radius.

4. A space paddle-type inertial capacitive device according to claim 3, characterized in that, The estimate using the Morison equation is as follows: (5) in The density of the damping medium, The inertia coefficient of the rotating blade (302) is... The damping coefficient; and These are the volume and area of ​​the rotating blade (302) per unit radius, respectively; and These are the tangential acceleration and velocity at the small hole position on the rotating blade (302), respectively.

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