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CN-224201016-U - Baffle angle adjustable particle damper

CN224201016UCN 224201016 UCN224201016 UCN 224201016UCN-224201016-U

Abstract

The utility model provides a particle damper with adjustable baffle angles, which comprises a damping box, a plurality of baffles and a driving assembly, wherein the damping box is provided with a damping cavity for accommodating particles, the baffles are rotatably connected into the damping cavity through rotating shafts, the main shafts of the rotating shafts horizontally extend, the baffles are distributed in a square matrix, the driving assembly is arranged in the damping box and connected with one end of each rotating shaft, and the driving assembly can rotationally drive the rotating shafts to synchronously rotate so as to adjust the angles of the baffles. The particle damper with the adjustable baffle angle can realize flexible regulation and control of particle vibration damping characteristics, and improves energy dissipation efficiency, vibration adaptability and overall vibration damping performance.

Inventors

  • YANG KAI
  • LIU ENGUO
  • MAO XIAOYE
  • Ding hu
  • CHEN LIQUN

Assignees

  • 上海大学

Dates

Publication Date
20260505
Application Date
20250723

Claims (10)

  1. 1. Particle damper with adjustable baffle angle, its characterized in that includes: A damping tank having a damping chamber for accommodating particles; A plurality of baffles rotatably connected in the damping cavity through a rotating shaft, the main shaft of the rotating shaft horizontally extends, the baffles are arranged in a square matrix, and The driving assembly is arranged in the damping box and connected with one end of the rotating shaft, and the driving assembly can rotationally drive a plurality of rotating shafts to synchronously rotate so as to adjust the angle of the baffle.
  2. 2. The baffle angle adjustable particle damper of claim 1, wherein a drive cavity is arranged in the damper box at intervals with the damper cavity, the drive cavity and the damper cavity are arranged at intervals along the axial direction of the rotating shaft, and the drive assembly is positioned in the drive cavity.
  3. 3. The adjustable baffle angle particulate damper of claim 2, wherein said baffle has nine, said drive assembly includes nine gears connected in one-to-one correspondence with said nine shafts, adjacent ones of said gears intermesh.
  4. 4. A baffle angle adjustable particle damper as claimed in claim 3, wherein a drive block extending to the outside of said damper housing is connected to said gear at the center.
  5. 5. The baffle angle adjustable particle damper of claim 4, wherein the cross section of the driving block is rectangular, a knob is arranged on the outer side wall of the damping box, and a slot for being in plug-in fit with the driving block is arranged on the end face of the knob.
  6. 6. The adjustable baffle angle particulate damper as recited in claim 5, wherein the outer sidewall of the drive block has a projection projecting outwardly in an arc shape, and the inner sidewall of the slot has a receiving groove for receiving the projection.
  7. 7. The adjustable baffle angle particulate damper as recited in claim 5, wherein a plurality of scale blocks are provided on an outer sidewall of the damper housing at intervals around a circumference of the knob, and a pointer is provided on an outer circumferential wall of the knob.
  8. 8. The baffle angle adjustable particle damper of claim 1, wherein both ends of the rotating shaft are rotatably connected with the damping box through bearings, respectively.
  9. 9. The baffle angle adjustable particle damper of claim 1, wherein said damper housing comprises an upwardly open housing and a cover disposed on said housing for sealing said opening.
  10. 10. The baffle angle adjustable particle damper of claim 1, wherein an end of the rotating shaft away from the driving assembly extends to the outer side of the damping box, a pin hole radially penetrates through the outer end of the rotating shaft, and a cotter pin is inserted into the pin hole.

Description

Baffle angle adjustable particle damper Technical Field The utility model belongs to the technical field of particle dampers, and particularly relates to a particle damper with an adjustable baffle angle. Background A particle damper is a passive vibration damping device that achieves energy dissipation through inelastic collision and friction between particle objects enclosed within a cavity and between the particle objects and the cavity walls. The vibration-resistant device has the advantages of simple structure, no need of external energy input, high temperature resistance, suitability for multi-frequency vibration and the like, and is widely applied to the vibration protection of spacecraft structures, electronic equipment supports, vehicle suspension systems and precise instruments. In the prior art, a single cavity is arranged in the particle damper, and particle materials such as metal or ceramic are filled in the cavity, namely, the motion track and the distribution state of particles are fixed after manufacturing, and the problem that the vibration reduction effect is reduced or even the vibration reduction effect is invalid is often caused when the structure faces to an excitation environment with large multi-frequency broadband vibration or direction change. Disclosure of utility model The embodiment of the utility model provides a particle damper with an adjustable baffle angle, which can realize flexible regulation and control of particle vibration damping characteristics and improve energy dissipation efficiency, vibration adaptability and overall vibration damping performance. The technical scheme includes that the particle damper with the adjustable baffle angle comprises a damping box, a plurality of baffles and a driving assembly, wherein the damping box is provided with a damping cavity for accommodating particles, the baffles are rotatably connected into the damping cavity through rotating shafts, a main shaft of each rotating shaft horizontally extends, the baffles are arranged in a square matrix, the driving assembly is arranged in the damping box and connected with one end of each rotating shaft, and the driving assembly can rotationally drive the rotating shafts to synchronously rotate so as to adjust the angles of the baffles. In one possible implementation manner, a driving cavity is arranged in the damping box at intervals with the damping cavity, the driving cavity and the damping cavity are arranged at intervals along the axial direction of the rotating shaft, and the driving assembly is positioned in the driving cavity. In some embodiments, the baffle is provided with nine, and the driving assembly comprises nine gears connected with the nine rotating shafts in a one-to-one correspondence manner, and two adjacent gears are meshed with each other. In some embodiments, a drive block extending outside the damper box is connected to the gear located in the middle. In some embodiments, the section of the driving block is rectangular, a knob is arranged on the outer side wall of the damping box, and a slot for being in plug-in fit with the driving block is arranged on the end face of the knob. In some embodiments, the outer side wall of the driving block is provided with a convex block protruding outwards in an arc shape, and the inner side wall of the slot is provided with a containing groove for containing the convex block. In some embodiments, the outer side wall of the damping box is provided with a plurality of scale blocks which are arranged around the circumference of the knob at intervals, and the outer peripheral wall of the knob is provided with a pointer. In one possible implementation, the two ends of the rotating shaft are respectively connected with the damping box in a rotating way through bearings. In one possible implementation, the damping box includes a box body with an upward opening, and a cover disposed on the box body and used for sealing the opening. In one possible implementation, the end of the rotating shaft away from the driving assembly extends to the outer side of the damping box, the outer end of the rotating shaft radially penetrates through a pin hole, and a cotter pin is inserted into the pin hole. Compared with the prior art, the particle damper with the adjustable baffle angle provided by the embodiment is characterized in that the internal baffle angle is adjusted to match different excitation frequencies, so that the particle motion path and the collision mode are changed, the flexible regulation and control of particle vibration damping characteristics are realized, and the energy dissipation efficiency, the vibration adaptability and the overall vibration damping performance are improved. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that th