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CN-122014690-A - Self-adaptive vibration suppression device of fan driving system

CN122014690ACN 122014690 ACN122014690 ACN 122014690ACN-122014690-A

Abstract

The invention relates to the technical field of vibration suppression equipment, and provides a self-adaptive vibration suppression device of a fan driving system, which comprises a rigid base surface, a mounting platform and the fan driving system fixedly mounted on the mounting platform, wherein the mounting platform is erected on the rigid base surface through a plurality of supporting components, a vibration suppression unit is arranged on the mounting platform, a bidirectional reciprocating screw rod is connected in a rotating manner inside the vibration suppression unit, one end of the bidirectional reciprocating screw rod penetrates through the mounting platform and is in threaded connection with the rigid base surface, the vibration suppression unit also comprises a sector gear synchronously rotating with the bidirectional reciprocating screw rod and a rack meshed with the sector gear, the rack is rigidly connected with the fan driving system, and when the fan driving system vibrates, the rack is driven to reciprocate and drive the sector gear to swing, so that the bidirectional reciprocating screw rod is screwed into the rigid base surface in the vibration process, and the mounting platform is pulled to press and compress the supporting components, and support rigidity adjustment is realized.

Inventors

  • ZHOU SHANGSHANG

Assignees

  • 无锡市崐博电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (8)

  1. 1. The utility model provides a fan actuating system's self-adaptation device that shakes that restraines, includes rigid base (1), mounting platform (2) and fan actuating system (21) of fixed mounting on mounting platform (2), its characterized in that: the mounting platform (2) is erected on the rigid base surface (1) through a plurality of supporting components (11); the mounting platform (2) is provided with a vibration suppression unit (3), the inside of the vibration suppression unit (3) is rotationally connected with a bidirectional reciprocating screw rod (33), and one end of the bidirectional reciprocating screw rod (33) penetrates through the mounting platform (2) and is in threaded connection with the rigid base surface (1); the vibration suppression unit (3) further comprises a sector gear (32) which rotates synchronously with the bidirectional reciprocating screw (33) and a rack (35) which is meshed with the sector gear (32), and the rack (35) is rigidly connected with the fan driving system (21); when the fan driving system (21) vibrates, the rack (35) is driven to reciprocate and the sector gear (32) is driven to swing, so that the bidirectional reciprocating screw rod (33) is screwed into the rigid base surface (1) in the vibration process, and the mounting platform (2) is pulled to press down and compress the supporting component (11), and the supporting rigidity adjustment is realized.
  2. 2. The self-adaptive vibration suppression device of the fan driving system according to claim 1, wherein a fixed damping disc (31) is further arranged in the vibration suppression unit (3), an arc-shaped protrusion (321) extending along a swinging track is arranged on the back of the sector gear (32), and a damping groove (311) matched with the arc-shaped protrusion (321) is formed in the damping disc (31).
  3. 3. The self-adaptive vibration suppression device of a fan driving system according to claim 2, wherein the two ends of the arc-shaped bulge (321) are provided with first gradual transition surfaces, the two ends of the damping groove (311) are provided with second gradual transition surfaces corresponding to the first gradual transition surfaces, and damping braking force is generated through interference friction between the first gradual transition surfaces and the second gradual transition surfaces.
  4. 4. The self-adaptive vibration suppression device of a fan driving system according to claim 1, wherein the vibration suppression unit (3) further comprises a guide seat (34), and two ends of the rack (35) are slidably mounted in guide grooves of the guide seat (34).
  5. 5. The self-adaptive vibration suppression device of the fan driving system according to claim 1, wherein the vibration suppression units (3) are arranged in a plurality, and the vibration suppression units (3) are symmetrically distributed around the mounting platform (2).
  6. 6. An adaptive damping device for a fan drive system according to claim 1, wherein the static pre-compression of the support member (11) is less than 10% of its free height.
  7. 7. A self-adaptive vibration suppression device of a fan driving system according to claim 1, wherein a crescent pin is arranged in a threaded hole of a rigid base surface (1), the surface of a bidirectional reciprocating screw rod (33) is provided with a left-handed spiral groove and a right-handed spiral groove which are intersected, and the crescent pin is matched with the spiral grooves to guide the bidirectional reciprocating screw rod (33) to generate downward axial displacement during bidirectional rotation.
  8. 8. The self-adaptive vibration suppression device of a fan driving system according to claim 1, wherein a thread pair between the bidirectional reciprocating screw (33) and the rigid base surface (1) has a self-locking characteristic.

Description

Self-adaptive vibration suppression device of fan driving system Technical Field The invention relates to the technical field of vibration suppression equipment, in particular to a self-adaptive vibration suppression device of a fan driving system. Background The fan is used as core driving equipment in industrial production and ventilation systems, and the operation stability of the fan is directly related to production safety and efficiency. Due to factors such as uneven mass distribution of fan blades, shafting centering errors or air flow excitation, the fan driving system inevitably generates vibration in the working process, and the traditional vibration suppression device mostly adopts springs or rubber shock pads with fixed rigidity, so that the supporting rigidity cannot be adjusted according to the change of the rotating speed of the fan or vibration intensity fluctuation. At a specific frequency, the system easily enters a resonance area, so that the vibration suppression effect is limited, and therefore, we propose an adaptive vibration suppression device of a fan driving system. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the self-adaptive vibration suppression device of the fan driving system, which overcomes the defects of the prior art, has reasonable design and compact structure and solves the problems in the background art. In order to achieve the above purpose, the invention is realized by the following technical scheme: The self-adaptive vibration suppression device of the fan driving system comprises a rigid base surface, a mounting platform and the fan driving system fixedly mounted on the mounting platform, wherein the mounting platform is erected on the rigid base surface through a plurality of supporting components; the mounting platform is provided with a vibration suppression unit, the inside of the vibration suppression unit is rotationally connected with a bidirectional reciprocating screw rod, and one end of the bidirectional reciprocating screw rod penetrates through the mounting platform and is in threaded connection with the rigid base surface; The vibration suppression unit also comprises a sector gear which rotates synchronously with the bidirectional reciprocating screw rod and a rack which is meshed with the sector gear, and the rack is rigidly connected with the fan driving system; When the fan driving system vibrates, the rack is driven to reciprocate and the sector gear is driven to swing, so that the bidirectional reciprocating screw rod is screwed into the rigid base surface in the vibration process, and the mounting platform is pulled to press down and compress the supporting component, and the supporting rigidity is adjusted. Preferably, the damping disc is fixed in the vibration suppressing unit, the back of the sector gear is provided with an arc-shaped bulge extending along the swing track, and the damping disc is provided with a damping groove matched with the arc-shaped bulge. Preferably, the two ends of the arc-shaped bulge are provided with first gradual transition surfaces, the two ends of the damping groove are provided with second gradual transition surfaces corresponding to the first gradual transition surfaces, and damping braking force is generated through interference friction between the first gradual transition surfaces and the second gradual transition surfaces. Preferably, the vibration suppression unit further comprises a guide seat, and two ends of the rack are slidably arranged in the guide groove of the guide seat. Preferably, the vibration suppressing units are arranged in a plurality, and the vibration suppressing units are symmetrically distributed around the mounting platform. Preferably, the static pre-compression of the support assembly is less than 10% of its free height. Preferably, a crescent pin is arranged in the threaded hole of the rigid base surface, the surface of the bidirectional reciprocating screw rod is provided with a left-handed spiral groove and a right-handed spiral groove which are intersected, and the crescent pin is matched with the spiral groove to guide the bidirectional reciprocating screw rod to generate downward axial displacement during bidirectional rotation. Preferably, the thread pair between the bidirectional reciprocating screw and the rigid base surface has self-locking property. The invention provides a self-adaptive vibration suppression device of a fan driving system. The beneficial effects are as follows: 1. The horizontal vibration of the fan system is converted into the rotary motion of the bidirectional reciprocating screw rod through the meshing of the racks and the sector gears. By utilizing the principle of more and less advance and retreat, the screw rod is gradually screwed into the rigid base surface in the vibration process, and the mounting platform is actively pulled to press down and compress the supporting component, so that the supporting rigi