CN215058946U

CN215058946U - Magnetorheological elastomer bearing vibration damper

Info

Publication number: CN215058946U
Application number: CN202022950627.7U
Authority: CN
Inventors: 李俊; 鲍俊瑶; 逄浩明; 王胜; 毛旺龙; 张文强; 赵旭; 袁梁鹏
Original assignee: Anhui Weiwei Rubber Parts Group Co ltd
Current assignee: Anhui Weiwei Rubber Parts Group Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-12-07
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a magnetic current becomes elastomer bearing vibration damper, including the bearing frame, mounting hole fixedly connected with bearing is passed through at the top of bearing frame, it has the pivot to run through in the bearing, the left and right both sides of bearing frame just are located the equal fixedly connected with damping subassembly in outside of pivot, the damping subassembly includes magnetic current becomes elastomer, the fixed cover in the outside of magnetic current becomes elastomer is equipped with the magnetizer, the fixed winding has the coil winding on the outer wall in the magnetizer outside, the outside of magnetizer is provided with the protecting crust, the inner wall fixedly connected with baffle of protecting crust, the utility model relates to a magnetic current becomes elastomer technical field. According to the damping device for the magnetorheological elastomer bearing, the magnetorheological elastomer is arranged, and under the action of the magnetizer wound with the coil winding, an operator can change the rigidity of the magnetorheological elastomer by changing the current of the coil winding, so that the damping device has adaptive damping effect on motors with different rotating speeds.

Description

Magnetorheological elastomer bearing vibration damper

Technical Field

The utility model relates to a magnetic current becomes elastomer technical field, specifically is a magnetic current becomes elastomer bearing vibration damper.

Background

The magnetorheological elastomer is prepared by doping micrometer ferromagnetic particles into a high molecular polymer and curing the mixture in a magnetic field environment, so that the particles in a matrix have a chain or columnar structure, and the elastic modulus of the material can be changed along with the intensity of an external magnetic field, so that the magnetorheological elastomer is expected to be widely applied to variable-stiffness devices and the like.

The existing bearing is usually subjected to radial vibration in the rotating process, the radial vibration can cause damage to the bearing, so that the bearing cannot work, the rotating load can generate vibration with different amplitudes and different frequencies under different rotating speeds and torque conditions, the existing damping mode usually adopts a fixed damping structure, the damping performance is limited, and certain limitation exists in use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a magnetorheological elastomer bearing vibration damper has solved current shock attenuation mode and has adopted fixed shock-absorbing structure usually, and the damping performance is limited, uses the problem that has certain limitation.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a magnetic current becomes elastomer bearing vibration damper, includes the bearing frame, the top of bearing frame is through mounting hole fixedly connected with bearing, it has the pivot to run through in the bearing, the left and right both sides of bearing frame just are located the equal fixedly connected with damping subassembly in outside of pivot, damping subassembly includes the magnetic current becomes elastomer, the fixed cover in outside of magnetic current becomes elastomer is equipped with the magnetizer, fixed winding has the coil winding on the outer wall in the magnetizer outside, the outside of magnetizer is provided with the protecting crust, the inner wall fixedly connected with baffle of protecting crust, the through-hole has been seted up on the lateral wall of protecting crust, the magnetic current becomes elastomer and includes the sleeve, telescopic inboard is through baffle fixedly connected with contact pad piece.

Preferably, the bottom of the bearing seat is provided with two positioning holes.

Preferably, the rotating shaft is rotatably connected in the mounting hole through a bearing, and the outer wall of the rotating shaft is fixedly connected with the inner wall of the bearing.

Preferably, the magnetizer is fixedly connected to the inner side of the partition plate.

Preferably, the inner diameter of the through hole is matched with the outer wall of the rotating shaft, the rotating shaft penetrates through the through hole and extends to the outside of the protective shell, and the protective shell is fixedly connected to the bearing seat.

Preferably, the contact gasket is embedded in the mounting hole, and the outer wall of the contact gasket is matched with the inner wall of the mounting hole.

Preferably, the inner side wall of the baffle is attached to the bearing seat, the outer wall of the sleeve is fixedly connected to the outer wall of the rotating shaft in the circumferential direction through four screws, and the four screws are distributed in an annular array.

Advantageous effects

The utility model provides a magnetic current becomes elastomer bearing vibration damper. Compared with the prior art, the method has the following beneficial effects:

(1) according to the damping device for the magnetorheological elastomer bearing, the magnetorheological elastomer is arranged, and under the action of the magnetizer wound with the coil winding, an operator can change the rigidity of the magnetorheological elastomer by changing the current of the coil winding, so that the damping device is more flexible to use aiming at the damping effect of different rotating speed motors which is adaptive to each other.

(2) This magnetic current becomes elastomer bearing vibration damper through setting up and using magnetic current to become elastomer, and contact pad and mounting hole looks adaptation and inlay to establish into the mounting hole and laminate mutually with the bearing, have further improved the damping effect of bearing, are provided with the protecting crust, play effectual protection and the magnetic leakage prevention effect good to inner structure.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the split structure of the present invention;

fig. 3 is a schematic structural view of the damping assembly of the present invention;

in the figure: 1. a bearing seat; 2. positioning holes; 3. mounting holes; 4. a bearing; 5. a rotating shaft; 6. a vibration reduction assembly; 7. a magnetorheological elastomer; 8. a magnetizer; 9. a coil winding; 10. a protective shell; 11. a partition plate; 12. a through hole; 13. a sleeve; 14. a baffle plate; 15. contact pads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a damping device for a magnetorheological elastomer bearing comprises a bearing seat 1, wherein the top of the bearing seat 1 is fixedly connected with a bearing 4 through a mounting hole 3, a rotating shaft 5 penetrates through the bearing 4, damping components 6 are fixedly connected to the left side and the right side of the bearing seat 1 and positioned outside the rotating shaft 5, each damping component 6 comprises a magnetorheological elastomer 7, a magnetizer 8 is fixedly sleeved outside the magnetorheological elastomer 7, a coil winding 9 is fixedly wound on the outer wall outside the magnetizer 8, a protective shell 10 is arranged outside the magnetizer 8, a partition plate 11 is fixedly connected to the inner wall of the protective shell 10, a through hole 12 is formed in the outer side wall of the protective shell 10, the magnetorheological elastomer 7 comprises a sleeve 13, a contact gasket 15 is fixedly connected to the inner side of the sleeve 13 through a baffle plate 14, two positioning holes 2 are formed in the bottom of the bearing seat 1, and the rotating shaft 5 is rotatably connected in the mounting hole 3 through the bearing 4, the outer wall of the rotating shaft 5 is fixedly connected with the inner wall of the bearing 4, the magnetizer 8 is fixedly connected on the inner side of the partition plate 11, the inner diameter of the through hole 12 is matched with the outer wall of the rotating shaft 5, the rotating shaft 5 penetrates through the through hole 12 and extends to the outside of the protective shell 10, the protective shell 10 is fixedly connected on the bearing seat 1, the contact gasket 15 is embedded in the mounting hole 3, the outer wall of the contact gasket 15 is matched with the inner wall of the mounting hole 3, the inner side wall of the baffle plate 14 is attached to the bearing seat 1, the circumferential direction of the outer wall of the sleeve 13 is fixedly connected on the outer wall of the rotating shaft 5 through four screws which are distributed in an annular array, through the arrangement of the magneto-rheological elastomer 7, under the action of the magnetizer 8 wound with the coil winding 9, an operator can change the rigidity of the magneto-rheological elastomer 7 through changing the current of the coil winding 9, thereby playing a role of matched vibration damping for motors with different rotating speeds, the use is more flexible.

During operation, during installation, firstly, an operator rotatably installs the rotating shaft 5 in the installation hole 3 of the bearing seat 1 through the bearing 4, then the operator sleeves the magnetorheological elastomer 7 on the outer wall of the rotating shaft 5 on one side of the bearing seat 1, so that the contact gasket 15 is embedded in the installation hole 3 and is attached to the bearing seat 1, the inner side wall of the baffle plate 14 is attached to one side of the bearing seat 1, the sleeve 13 is fixedly connected to the outer wall of the rotating shaft 5 through four screws, then the operator fixedly connects the magnetizer 8 wound with the coil winding 9 to the partition plate 11 of the protective shell 10, and fixedly installs the protective shell 10 outside the magnetorheological elastomer 7 on one side of the bearing seat 1, so that the sleeve 13 extends to the inside of the magnetizer 8 and is movably connected with the magnetizer 8, the inner side wall of the magnetizer 8 is attached to the outer side wall of the baffle plate 14, and (3) finishing the installation of the vibration damping component 6 on one side of the bearing seat 1, and finishing the installation of the vibration damping component 6 on the other side of the bearing seat 1 by adopting the method, thereby finishing the installation operation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a magnetic current becomes elastomer bearing vibration damper, includes bearing frame (1), its characterized in that: the top of the bearing seat (1) is fixedly connected with a bearing (4) through a mounting hole (3), a rotating shaft (5) penetrates through the bearing (4), vibration damping components (6) are fixedly connected on the left side and the right side of the bearing seat (1) and positioned outside the rotating shaft (5), the vibration reduction component (6) comprises a magnetorheological elastomer (7), a magnetizer (8) is fixedly sleeved on the outer side of the magnetorheological elastomer (7), a coil winding (9) is fixedly wound on the outer wall of the outer side of the magnetizer (8), a protective shell (10) is arranged outside the magnetizer (8), a clapboard (11) is fixedly connected with the inner wall of the protective shell (10), the outer side wall of the protective shell (10) is provided with a through hole (12), the magnetorheological elastomer (7) comprises a sleeve (13), the inner side of the sleeve (13) is fixedly connected with a contact gasket (15) through a baffle plate (14).

2. The magnetorheological elastomer bearing vibration damping device of claim 1, wherein: two positioning holes (2) are formed in the bottom of the bearing seat (1).

3. The magnetorheological elastomer bearing vibration damping device of claim 1, wherein: the rotating shaft (5) is rotatably connected in the mounting hole (3) through a bearing (4), and the outer wall of the rotating shaft (5) is fixedly connected with the inner wall of the bearing (4).

4. The magnetorheological elastomer bearing vibration damping device of claim 1, wherein: the magnetizer (8) is fixedly connected to the inner side of the clapboard (11).

5. The magnetorheological elastomer bearing vibration damping device of claim 1, wherein: the inner diameter of through-hole (12) and the outer wall looks adaptation of pivot (5), pivot (5) run through in through-hole (12) and extend to the outside of protecting crust (10), protecting crust (10) fixed connection is on bearing frame (1).

6. The magnetorheological elastomer bearing vibration damping device of claim 1, wherein: the contact gasket (15) is embedded in the mounting hole (3), and the outer wall of the contact gasket (15) is matched with the inner wall of the mounting hole (3).

7. The magnetorheological elastomer bearing vibration damping device of claim 1, wherein: the inside wall of baffle (14) is laminated with bearing frame (1) mutually, the circumference of sleeve (13) outer wall is through four screw fixed connection on the outer wall of pivot (5), and four screws are the annular array and distribute.