Damping decoupling steering protection inerter damper

Abstract

The utility model discloses a damping decoupling steering protection inerter damper which comprises a left connecting piece, a cover plate, a first bearing, an outer cylinder, a steering protection device and a right connecting piece. The left connecting piece is fixed to a ball screw in the steering protection device. The first bearings are fixed to the two ends of the steering protection device. The right connecting piece is fixedly connected to the outer cylinder; the steering protection device comprises a ball screw, a screw nut pair, a rotary drum, a ratchet wheel, an adapter, a second bearing, a pawl, a spring, a magnet set and a guide sleeve. According to the inertia damper, the rotation inertia force of the rotary drum and the reverse driving force of the lead screw nut are decoupled when the inertia damper steers through a special ratchet wheel structure, so that the steering protection function of the inertia damper is achieved, and the inertia damper can be adjusted into various energy consumption modes according to requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building engineering especially, relates to a damping decoupling steering protection inertial haptic damper. BACKGROUND

[0002] Inertial haptic damper as a new type damper, due to its unique axial displacement amplification, mass amplification and high damping characteristics, gradually replaces the conventional damper and is applied to practical engineering projects, among which the ball screw type inertial haptic damper is most common, and its structure is divided into two kinds: the inner rotation type that the inner cylinder is connected with the ball screw and the outer cylinder is fixed separately and the outer rotation type that the outer cylinder is connected with the ball screw and the inner cylinder is fixed separately, but the rotating cylinder connected with the ball screw has certain moment of inertia, and in the instant of damper steering, the rotating cylinder will have inertial force to continue rotating in the original direction due to inertia, and the ball screw moving in the opposite direction will give the rotating cylinder a driving force opposite to the inertial force, under the joint action of the two forces, the force on the inertial haptic damper will increase instantaneously in the instant of steering, and when the moment of inertia of the rotating cylinder is large or the damper moves fast, the force on the damper in the steering will increase geometrically, thereby causing damage to the damper or destruction of the connection structure between the damper and the structure. SUMMARY

[0003] The utility model provides a damping decoupling steering protection inertial haptic damper to solve the problem of stepwise mutation of force value in the steering of the inertial haptic damper in the prior art.

[0004] In order to achieve the above purpose, the technical scheme of the utility model is as follows: a damping decoupling steering protection inertial haptic damper comprises a left connecting piece, a cover plate, a first bearing, an outer cylinder, a steering protection device and a right connecting piece, the left connecting piece is fixed with a ball screw in the steering protection device, two first bearings are arranged in opposite directions, the inner rings of the two first bearings are fixed at both ends of the steering protection device, and the outer rings are fixed at both ends inside the outer cylinder, the cover plate is fixed at both ends of the outer cylinder and presses against the outer rings of the first bearings, the right connecting piece is fixedly connected to the outer cylinder, the steering protection device comprises a ball screw, a screw nut pair, a rotating cylinder, a ratchet wheel, an adapter seat, a second bearing, a pawl, a spring, a magnet group and a guide sleeve, the screw nut pair is coaxially connected to the ball screw movably, a set of the rotating cylinder, the ratchet wheel, the second bearing and the adapter seat are symmetrically arranged on both sides of the screw nut pair and are coaxially connected, the ratchet wheel is fixed to one end inside the rotating cylinder, the second bearing is arranged side by side with the ratchet wheel, the inner ring of the second bearing is fixedly connected to the adapter seat, and the outer ring is fixedly connected to the rotating cylinder, the pawl is rotatably installed on the adapter seat, the spring is a compression spring, one end of the spring is fixed to the pawl, and the other end is fixed to the adapter seat, the spring pushes the pawl to the ratchet wheel, the magnet group is annularly arranged outside the rotating cylinder, and the guide sleeve is fixedly connected to the bottom end of the ball screw and is slidably arranged inside the rotating cylinder.

[0005] Preferably, the adapter seat in the steering protection device is provided with at least two pawls connected thereto and uniformly distributed, so that more balanced driving force is provided to drive the rotating drum;

[0006] Preferably, the driving direction of the ratchets on both sides of the screw nut in the steering protection device is opposite to the unloading direction, that is, when the screw nut rotates, only the rotating drum on the driving side is driven to rotate;

[0007] Preferably, the adapter seat is provided with the same number of threaded holes and counterbores arranged uniformly, so that the screw nuts are oppositely mounted;

[0008] The utility model discloses the beneficial effect is:

[0009] First, when the inertia damper of the steering protection is subjected to an axial force, the ball screw drives the screw nut to rotate, because the directions of the ratchets on both sides of the screw nut are opposite, the screw nut will only drive the rotating drum of the driving state ratchet to rotate and consume energy, and the rotating drum of the unloading state ratchet remains stationary, when the ball screw reaches the displacement amplitude and moves in the opposite direction, the screw nut rotates in the opposite direction, the states of the ratchets on both sides are instantaneously converted, that is, the ratchet originally in the driving state will be in the unloading state and will not be affected by the reverse rotation of the screw nut, and the rotating drum continues to rotate and consume energy due to the inertial force, and the ratchet originally in the unloading state will be in the driving state, and the stationary rotating drum will be forced to start rotating, the decoupling of the inertial force of the rotating drum and the reverse driving force of the screw nut is realized when the inertia damper turns through the ratchet structure with opposite directions, thereby realizing the function of the steering protection of the inertia damper.

[0010] Second, the inertia damper of the steering protection has two independent energy-consuming rotating drums when moving forward and moving backward, and various energy-consuming modes can be realized by adjusting the magnet groups on the two rotating drums, such as only forward energy consumption, only reverse energy consumption, large forward energy consumption and small reverse energy consumption, small forward energy consumption and large reverse energy consumption, and the same forward and reverse energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural section schematic view of the utility model;

[0012] Figure 2 It is an explosion schematic view of the steering protection device of the utility model;

[0013] Figure 3 It is a ratchet structure schematic view of the utility model;

[0014] Figure 4 It is an appearance view of the embodiment one of the utility model;

[0015] Figure 5 It is a sectional view of the embodiment one of the utility model;

[0016] Figure 6 It is an appearance view of the embodiment two of the utility model;

[0017] Figure 7 The cross-sectional view of the second embodiment of the present application;

[0018] 1 - left connecting piece, 2 - steering protection device, 3 - outer cylinder, 4 - right connecting piece, 5 - cover plate, 6 - first bearing, 201 - ball screw, 202 - screw nut pair, 203 - rotating drum, 204 - ratchet wheel, 205 - adapter seat, 206 - second bearing, 207 - ratchet pawl, 208 - spring, 209 - magnet group, 210 - guide sleeve, 211 - damping liquid, 212 - rotary seal. DETAILED DESCRIPTION

[0019] The technical scheme of the present application is further specifically described below by means of examples and in combination with the drawings.

[0020] Example 1: A damping decoupling steering protection inertial damper, such as Figures 1-5As shown, it comprises: a left connector, a cover plate, a first bearing, an outer cylinder, a steering protection device, a right connector, the left connector is a disc flange type, one end is provided with an internal thread to fix the ball screw in the steering protection device, the other end is connected with the structure; the first bearing is provided with two, and the directions are opposite, the two first bearing inner rings are fixed at both ends of the steering protection device, and the outer rings are fixed at both ends inside the outer cylinder; the cover plate is fixed at both ends of the outer cylinder, and presses against the first bearing outer ring; the right connector is a disc flange type, one end is provided with an external thread to be fixedly connected to the outer cylinder, and the other end is connected with the structure; the steering protection device is composed of a ball screw provided with a screw nut, two rotating cylinders, two ratchets, two second bearings, two adapter seats, four pawls, four springs, two groups of magnets and a guide sleeve, eight mounting holes are uniformly arranged on the adapter seat, four of which are threaded holes in the vertical direction, and four of which are counterbores in the horizontal direction, the two adapter seats are symmetrically arranged and crossed by 90° with respect to the screw nut, and after the threaded holes and the counterbores are matched, they are fixed on the screw nut with bolts; the adapter seat is a three-layer hollow cylindrical structure, two ratchet installation cylinders are symmetrically arranged on the upper surface of the middle layer, a threaded hole is arranged in the middle of the cylinder, the pawl is rotatably installed on the cylinder with a bolt, and the upper surface of the pawl is flush with the top layer of the adapter seat, the springs are symmetrically fixed on the top layer of the cylinder, and the other side of the spring is fixed to the lower side of the pawl, the pawl is pushed outward along the radial direction, the second bearing is fixedly installed on the middle layer of the cylindrical surface, and the bottom layer of the cylinder serves as an axle shoulder to press against the inner ring of the second bearing; the ratchet is provided with a mounting counterbore and is fixedly installed in the rotating cylinder installation groove through a bolt, the second bearing is fixedly installed in the rotating cylinder installation groove side by side with the ratchet, and the outer ring of the ratchet protrudes a certain height to press against the outer ring of the second bearing, the pawl is in close contact with the ratchet, when the rotating direction of the adapter seat is opposite to the ratchet and the pawl, the rotating cylinder can be driven to rotate, when the adapter seat rotates in the opposite direction, the ratchet and the pawl are in the unloading direction, and the adapter seat cannot drive the rotating cylinder by itself; the magnet group is arranged in a ring shape on the outside of the rotating cylinder, and a gap is left between the magnet group and the outer cylinder, and the electromagnetic damping effect is used to dissipate energy; the guide sleeve is fixedly connected to the bottom end of the ball screw with a bolt, and is slidably arranged on the inside of the rotating cylinder.

[0021] Embodiment two: a damping decoupling steering protection inertial damper, as shown in Figures 6-7 The difference between embodiment two and embodiment one is that the left connector and the right connector are ear plate type, the outside of the rotating cylinder is provided with two rotating seals, the rotating seals seal the gap between the rotating cylinder and the outer cylinder, the sealing cavity is filled with damping liquid, and the shear damping force of the damping liquid is used to realize energy dissipation when the rotating cylinder and the outer cylinder rotate relative to each other.

[0022] Working principle: when the structure is subjected to earthquake or wind vibration, the ball screw drives the screw nut to rotate reciprocatingly, because the directions of the ratchets on both sides of the screw nut are opposite, the screw nut will only drive the rotating cylinder of the driving state ratchet to rotate to dissipate energy, and the rotating cylinder of the unloading state ratchet remains static, when the ball screw reaches the displacement amplitude and moves in the opposite direction, the screw nut rotates in the opposite direction, the states of the ratchets on both sides are instantaneously converted, that is, the ratchet originally in the driving state will be in the unloading state and will not be affected by the reverse rotation of the screw nut, the rotating cylinder continues to rotate to dissipate energy due to the inertial force, and the ratchet originally in the unloading state will be in the driving state, the static rotating cylinder will be forced to start rotating, and the decoupling of the inertial force of the rotating cylinder and the reverse driving force of the screw nut during the turning of the inertial damper is realized through a set of ratchets with opposite directions, so that the function of the turning protection of the inertial damper is realized.

[0023] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A damped decoupling steering protection inertial damper, characterized by: It includes: The left connecting piece, the cover plate, the first bearing, the outer cylinder, the steering protection device, the right connecting piece, the left connecting piece is fixed with the ball screw in the steering protection device; The first bearing is provided with two and the direction is opposite arrangement, two first bearing inner ring is fixed to the both ends of the steering protection device, the outer ring is fixed to the both ends inside the outer cylinder; The cover plate is fixed to the both ends of the outer cylinder, and the first bearing outer ring is pressed; The right connecting piece is fixedly connected to the outer cylinder; The steering protection device includes: ball screw, screw nut pair, rotating drum, ratchet, adapter seat, second bearing, pawl, spring, magnet group, guide sleeve; The screw nut pair is coaxially connected to the ball screw; A set of rotating drum, ratchet, second bearing and adapter seat are symmetrically arranged on both sides of the screw nut pair, and coaxially connected; The ratchet is fixed to the inner side of the rotating drum, the second bearing is arranged side by side with the ratchet, and the inner ring is fixedly connected to the adapter seat, and the outer ring is fixedly connected to the rotating drum; The pawl is rotatably mounted on the adapter seat; The spring is a compression spring, one end of which is fixed to the pawl, and the other end is fixed to the adapter seat; The spring pushes the pawl to the ratchet; The magnet group is annularly arranged on the outside of the rotating drum; The guide sleeve is fixedly connected to the bottom end of the ball screw, and is slidably arranged in the inside of the rotating drum.

2. The damper decoupling steering protection inertial damper according to claim 1, characterized in that: At least two pawls are installed on the adapter seat in the steering protection device, and are uniformly distributed, providing more balanced driving force to drive the rotating drum.

3. The damper decoupling steering protection inertial damper according to claim 1, characterized in that: The driving direction of the ratchet on both sides of the screw nut in the steering protection device is opposite to the unloading direction, that is, when the screw nut rotates, only one side of the rotating drum rotates.

4. The damped decoupling, steering protecting, inertial flywheel damper of claim 2, wherein: The adapter seat is provided with the same number of threaded holes and counterbores, which are uniformly arranged, realizing the opposite installation of the screw nut.

5. The damped decoupling and steering protection inertial damper according to claim 1, characterized in that: The damper forward motion and reverse motion are two independent energy-consuming rotating drums, which can be adjusted by the magnet group on the two rotating drums to realize: only forward energy consumption, only reverse energy consumption, large forward energy consumption and small reverse energy consumption, small forward energy consumption and large reverse energy consumption, and the same energy consumption mode.

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