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CN-121755312-B - Efficient vibration damper for pulverizer

CN121755312BCN 121755312 BCN121755312 BCN 121755312BCN-121755312-B

Abstract

The invention relates to a high-efficiency vibration damper for a flour mill, which comprises annular vibration isolation pieces fixedly arranged at gaps in the middle of a shell of the corresponding flour mill, annular vibration absorption pieces fixedly sleeved on the periphery of the annular vibration isolation pieces, connecting components used for fixedly pulling and fixing the middle of the annular vibration isolation pieces to the annular vibration absorption pieces, upper locking components used for fixedly arranging the upper sides of the annular vibration isolation pieces on the upper sides of the shell of the flour mill, lower locking components used for fixedly arranging the lower sides of the annular vibration isolation pieces on the lower sides of the shell of the flour mill, and corresponding elastic vibration damping support pieces respectively arranged between the upper parts of the lower locking components and the bottom sides of the annular vibration absorption pieces in an extrusion state. The invention can effectively reduce the transmission quantity of vibration generated by the operation of the grinding mechanism to the upper part of the shell on the premise of not influencing the normal graded circulation of materials.

Inventors

  • SHEN JIAWEI
  • Liao jiaxin
  • ZHONG HUI
  • Lan can
  • LIU XINWANG

Assignees

  • 福建龙亿粉体装备制造有限公司

Dates

Publication Date
20260508
Application Date
20260304

Claims (8)

  1. 1. An efficient vibration damper for a pulverizer, comprising: the annular vibration isolation piece (1) is fixedly arranged at a notch in the middle of a shell of the corresponding pulverizer (2), and the annular vibration isolation piece (1) is made of flexible rubber; the annular vibration absorbing piece (3) is fixedly sleeved on the periphery of the annular vibration isolating piece (1), the annular vibration absorbing piece (3) is made of rigid materials, and the annular vibration absorbing piece (3) is arranged in a hollow mode and is fixedly filled with corresponding vibration absorbing materials (4); The connecting assembly (5) is used for pulling and fixing the middle part of the annular vibration isolation piece (1) to the annular vibration absorption piece (3); an upper locking assembly (6) for fixedly mounting the upper side of the annular vibration isolator (1) to the upper side of the shell of the mill (2); The lower locking assembly (7) is used for fixedly mounting the lower side of the annular vibration isolation member (1) to the lower side of the shell of the pulverizer (2), and a corresponding elastic vibration reduction support member (8) is fixedly mounted between the upper part of the lower locking assembly (7) and the bottom side of the annular vibration isolation member (3) in a squeezing state respectively; The connecting assembly (5) comprises a plurality of magnet sheets uniformly distributed and fixedly connected to the middle part of the outer side wall of the annular vibration isolation piece (1), the annular vibration isolation piece (3) is made of a magnetic metal material, and the vibration isolation material (4) is made of vibration reduction damping particles made of the magnetic metal material; a plurality of corresponding vibration detectors (9) are arranged on the annular vibration absorbing piece (3) at intervals.
  2. 2. The efficient vibration damper for a pulverizer as claimed in claim 1, wherein a buffer rubber pad (10) is fixedly installed at the bottom side of the hollow space of the annular vibration absorbing member (3) and is positioned at the lower side of the vibration absorbing material (4) and is coated in the corresponding film bag in a compressed state, the annular vibration absorbing member (3) is assembled in place, the magnet sheets are respectively adsorbed and fixed on the side wall of the annular vibration absorbing member (3) and form adsorption driving for the vibration damping particles, and the film bag coated at the outer side of the buffer rubber pad (10) is ruptured by an external heating mode, so that the buffer rubber pad (10) forms extrusion support for the vibration damping particles in a recovery deformation state.
  3. 3. The efficient vibration damper for the pulverizer as claimed in claim 1, wherein the upper and lower sides of the annular vibration damper (1) are respectively provided with corresponding annular locking portions (101) by being turned outwards, and the upper locking assembly (6) comprises an upper press-fit ring plate (601) for clamping and fixing the annular locking portions (101) located on the upper side to the shell of the pulverizer (2), and the upper press-fit ring plate (601) is fixedly and oppositely locked to the shell of the pulverizer (2) by being matched with upper press-fit nuts (603) through corresponding upper press-fit bolts (602).
  4. 4. A high efficiency vibration damper for a mill according to claim 1, characterized in that the lower locking assembly (7) comprises a lower press ring plate (701) for clamping and fixing the annular locking part (101) located at the lower side to the housing of the mill (2), the lower press ring plate (701) being fastened and locked to the housing of the mill (2) by means of a corresponding lower counter lock bolt (702) cooperating with a lower counter lock nut (703).
  5. 5. The efficient vibration damper for a pulverizer as set forth in claim 4, wherein the lower pair of locking bolts (702) are provided with their ends facing upward, the bottom side of the elastic vibration damper support member (8) is fixedly fitted over the ends of the lower pair of locking bolts (702) and is pressed against the upper side of the lower pair of locking nuts (703), and the top of the elastic vibration damper support member (8) is pressed against the bottom side of the annular vibration damper (3).
  6. 6. The efficient vibration damper for a pulverizer as claimed in claim 5, wherein the upper sides of the lower pair of lock nuts (703) are respectively provided with corresponding anti-slip grooves (11) at positions corresponding to the elastic vibration damper support members (8), and the bottom ends of the elastic vibration damper support members (8) are respectively extruded and extended into the anti-slip grooves (11) of the lower pair of lock nuts (703).
  7. 7. The efficient vibration damper for the pulverizer as defined in claim 4, wherein the anti-slip grooves (11) of the lower pair of lock nuts (703) are respectively provided with corresponding anti-slip lines on the bottom sides thereof.
  8. 8. The efficient vibration damper for the pulverizer as claimed in claim 1, wherein the tops of the elastic vibration damper support members (8) are respectively arranged in a truncated cone shape with a narrow top and a wide bottom, and the elastic vibration damper support members (8) are made of vibration damper rubber materials.

Description

Efficient vibration damper for pulverizer Technical Field The invention relates to vibration reduction loading of material crushing processing equipment, in particular to a high-efficiency vibration reduction device for a pulverizer. Background The existing material grinding equipment has various styles, such as Raymond mill, high-pressure suspension roller mill, ring roller mill and the like. The ring roller mill is high-efficiency energy-saving dry superfine grinding equipment, is widely applied to the fields of nonmetallic ores, chemical industry, building materials, metallurgy and the like, and is particularly suitable for processing brittle materials with hardness below Mohs level 6 and humidity within 7%. The existing ring roller mill mainly comprises a machine shell, a grinding material mechanism arranged on the lower side of the machine shell and a grading discharging mechanism arranged on the upper side of the machine shell. In the grinding process, materials are fed to the position of the grinding mechanism through the feed inlet of the shell, the materials ground by the grinding mechanism are classified by the classification discharging mechanism under the action of air flow, the materials with the particle size are discharged, and the materials not with the particle size return to the grinding mechanism for grinding. Because the abrasive mechanism has obvious vibration in the operation process, a large amount of vibration is easily transmitted to the grading discharge mechanism along the machine shell. The existing classification discharging mechanism for the ring roller mill is mainly a cylindrical filtering grid rotating at a high speed, has extremely high structural precision requirement, has larger vibration quantity in the running process of high-speed rotation, and is troublesome because of the influence of vibration from an abrasive mechanism, thus the classification error is easy to occur, the service life of the classification discharging mechanism is obviously shortened, and the classification discharging mechanism is relatively low. In order to reduce the adverse effect of vibration generated by the operation of the grinding mechanism on the classification discharging mechanism, some manufacturers begin to try to divide the shell of the pulverizer into two parts, wherein the lower part of the shell is directly arranged on a corresponding fixing plane, the upper part of the shell is empty-mounted through uniformly distributed supporting legs, and then elastic vibration isolation materials are mounted at the interval between the lower part of the shell and the upper part of the shell, so that the upward transmission quantity of vibration generated by the operation of the grinding mechanism can be obviously reduced. However, since the materials conforming to the particle size in the grinding process of the materials are discharged under the action of air flow, a certain negative pressure state is formed in the shell of the grinding machine, so that the elastic vibration isolation material is deformed inwards to form concave deformation, and the normal graded circulation of the materials after grinding is influenced, which is very troublesome. Therefore, on the premise of not influencing normal material grading circulation, the design of the efficient vibration damper for the pulverizer can effectively and obviously reduce the transmission quantity of vibration generated by the operation of the abrasive mechanism to the upper part of the shell, so that the influence of the vibration generated by the operation of the abrasive mechanism on the structural precision of the grading discharge mechanism is effectively reduced. Disclosure of Invention The invention aims to solve the technical problems in the prior art, and provides a high-efficiency vibration damper for a pulverizer, which can effectively solve the technical problems in the prior art. The technical scheme of the invention is as follows: An efficient vibration damper for a pulverizer, comprising: The annular vibration isolation piece is fixedly arranged at a notch in the middle of a shell of the corresponding pulverizer, and is made of flexible rubber; the annular vibration absorbing piece is fixedly sleeved on the periphery of the annular vibration isolating piece, is made of rigid materials, is arranged in a hollow mode and is fixedly filled with corresponding vibration absorbing materials; The connecting assembly is used for pulling and fixing the middle part of the annular vibration isolation piece to the annular vibration absorption piece; an upper locking assembly for fixedly mounting the upper side of the annular vibration isolator to the upper side of the shell of the mill; the lower locking assembly is used for fixedly mounting the lower side of the annular vibration isolation piece to the lower side of the shell of the pulverizer, and corresponding elastic vibration reduction supporting pieces are fixedly mounted between