CN215805745U - Main shaft bearing with noise reduction and good sealing performance - Google Patents

Abstract

The utility model discloses a main shaft bearing with noise reduction and good sealing performance, which comprises an inner ring, an outer ring and balls, wherein the outer ring is arranged on the outer side of the inner ring, built-in slide blocks are arranged on the outer surface of the inner ring and the inner surface of the outer ring, a positioning plate is arranged between the inner ring and the outer ring, connecting holes are uniformly formed in the surface of the positioning plate, the balls are correspondingly arranged on the connecting holes in the surface of the positioning plate one by one, sealing grooves are formed in the upper side and the lower side of the outer end of the inner ring and the upper side and the lower side of the inner end of the outer ring, and sealing plates are arranged at the upper end and the lower end between the inner ring and the outer ring. This main shaft bearing that leakproofness of making an uproar falls can be connected with the seal groove that inner ring outside and outer loop inboard were seted up by the closing plate, makes things convenient for this inner ring of effectual sealing and outer loop, and the inboard of closing plate is provided with cellular sound absorption cotton board and cystosepiment simultaneously, can the effectual noise reduction effect who improves this bearing, and then improves this main shaft bearing's practicality.

Description

Main shaft bearing with noise reduction and good sealing performance

Technical Field

The utility model relates to the technical field of main shaft bearings, in particular to a main shaft bearing with noise reduction and good sealing performance.

Background

The spindle bearing is widely used in machine tools, and with the improvement of the requirements of precision machine tools on internal devices, the requirements of people on the spindle bearing are also increasingly strict, and for the existing spindle bearing, some defects still exist, such as:

1. the existing main shaft bearing has poor sealing and noise reduction effects when in use, can generate noise when in use, and has limitation in use;

2. the stability of the internal structure of the existing main shaft bearing is poor, the bearing is easy to crack when being used for a long time, and the practicability is low.

Aiming at the problems, the innovative design is carried out on the basis of the original main shaft bearing with noise reduction and good sealing performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a main shaft bearing with noise reduction and good sealing performance, and aims to solve the problems that the existing main shaft bearing is poor in sealing and noise reduction effects when in use, generates noise when the bearing is used, is poor in stability of the internal structure of the main shaft bearing, is easy to crack when the bearing is used for a long time, and is limited in use.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a main shaft bearing that leakproofness of making an uproar falls, includes inner ring, outer loop and ball, the outside of inner ring is provided with the outer loop, and the internal surface of inner ring surface and outer loop all is provided with built-in slider, be provided with the locating plate between inner ring and the outer loop, and the surface of locating plate has evenly seted up the connecting hole to the one-to-one is provided with the ball on the locating plate surface connecting hole, the seal groove has all been seted up to the upper and lower both sides of inner ring outer end and the upper and lower both sides of outer loop inner, the upper and lower both ends between inner ring and the outer loop all are provided with the closing plate.

Preferably, the inner ring includes outer rigid layer, reinforcement muscle and interior rigid layer, and the block is provided with the reinforcement muscle between outer rigid layer and the interior rigid layer to the upper and lower both sides of reinforcement muscle are the concave-convex structure, and the inner ring is the same with the material of outer ring.

Preferably, the sealing plate comprises a first hard rubber plate, a sound absorption cotton plate, a foam plate and a second hard rubber plate, the sound absorption cotton plate is arranged below the first hard rubber plate, the foam plate is arranged below the sound absorption cotton plate, and the second hard rubber plate is arranged below the foam plate.

Preferably, the sound-absorbing cotton plate is of a honeycomb structure, and the sound-absorbing cotton plate is connected with the foam plate in an adhesive manner.

Preferably, both sides all are "protruding" shape structure inside and outside the closing plate, and the inside and outside both sides of closing plate and the upper and lower both sides of inner ring outer end and the seal groove that the upper and lower both sides of outer loop inner were seted up constitute sealed block structure to the inboard middle part of closing plate is the groove-shaped structure.

Preferably, the locating plate is located the middle part of ball, and the upper and lower both ends of locating plate and the mutual block of slot-like structure in the inboard middle part of closing plate.

Compared with the prior art, the utility model has the beneficial effects that: the main shaft bearing with noise reduction and good sealing performance,

1. the sealing plate can be connected with the sealing grooves formed in the outer side of the inner ring and the inner side of the outer ring, the inner ring and the outer ring can be conveniently and effectively sealed, meanwhile, the inner side of the sealing plate is provided with the honeycomb sound-absorbing cotton plate and the foam plate, the noise reduction effect of the bearing can be effectively improved, and the practicability of the main shaft bearing is further improved;

2. can pass through the use of block at the inboard locating plate of closing plate, conveniently pass through the inside ball of the effectual location main shaft bearing of locating plate, conveniently improve this main shaft bearing inner structure's stability, the inboard of this bearing inner ring and outer loop all is provided with the reinforcement muscle of alloy material simultaneously, conveniently cooperates the use on outer rigid layer and interior rigid layer, improves the whole hardness of this bearing, avoids appearing the problem that the fracture appears in long-term use.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional structural view of the present invention;

FIG. 3 is a schematic view of a positioning plate according to the present invention;

FIG. 4 is a schematic view of the inner ring structure of the present invention;

FIG. 5 is a schematic view of the sealing plate structure of the present invention.

In the figure: 1. an inner ring; 101. an outer steel layer; 102. reinforcing ribs; 103. an inner steel layer; 2. an outer ring; 3. a sealing plate; 301. a first hard rubber plate; 302. a sound absorbing cotton plate; 303. a foam board; 304. a second hard rubber plate; 4. a sealing groove; 5. a sliding block is arranged inside; 6. positioning a plate; 7. a ball bearing; 8. and connecting the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 4, the present invention provides a technical solution: a main shaft bearing with noise reduction and good sealing performance comprises an inner ring 1, an outer ring 2 and balls 7, in order to prolong the service life of the bearing, the outer ring 2 can be arranged on the outer side of the inner ring 1, built-in sliders 5 are arranged on the outer surface of the inner ring 1 and the inner surface of the outer ring 2, the inner ring 1 comprises an outer rigid layer 101, reinforcing ribs 102 and an inner rigid layer 103, the reinforcing ribs 102 are clamped between the outer rigid layer 101 and the inner rigid layer 103, the upper side and the lower side of each reinforcing rib 102 are of a concave-convex structure, the inner ring 1 and the outer ring 2 are made of the same material, the rigidity of the inner ring 1 and the rigidity of the outer ring 2 can be conveniently improved through the use of the reinforcing ribs 102 between the outer rigid layer 101 and the inner rigid layer 103, and further the phenomenon that the bearing cracks appear in long-term use is avoided;

referring to fig. 2 and 3, in order to improve the stability of the internal structure of the bearing, a positioning plate 6 may be disposed between the inner ring 1 and the outer ring 2, and connecting holes 8 are uniformly formed in the surface of the positioning plate 6, and balls 7 are disposed on the connecting holes 8 in the surface of the positioning plate 6 in a one-to-one correspondence manner, the positioning plate 6 is located in the middle of the balls 7, and the upper and lower ends of the positioning plate 6 are engaged with the groove-shaped structure in the middle of the inner side of the sealing plate 3, so that the balls 7 can be effectively positioned by the positioning plate 6 engaged between the sealing plates 3, thereby improving the stability of the bearing;

referring to fig. 1, 2 and 5, in order to improve the noise reduction sealing effect of the bearing, sealing grooves 4 may be formed on both upper and lower sides of an outer end of the inner ring 1 and both upper and lower sides of an inner end of the outer ring 2, sealing plates 3 are disposed on both upper and lower ends between the inner ring 1 and the outer ring 2, each sealing plate 3 is composed of a first hard rubber plate 301, a sound absorbing cotton plate 302, a foam plate 303 and a second hard rubber plate 304, the sound absorbing cotton plate 302 is disposed below the first hard rubber plate 301, the foam plate 303 is disposed below the sound absorbing cotton plate 302, the second hard rubber plate 304 is disposed below the foam plate 303, the sound absorbing cotton plate 302 is in a honeycomb structure, and the sound absorbing cotton plate 302 and the foam plate 303 are connected by bonding, so that the sound absorbing cotton plate 302 and the foam plate 303 disposed between the first hard rubber plate 301 and the second hard rubber plate 304 on the sealing plate 3 can be used, the noise reduction effect of bearing is conveniently improved, and the inside and outside both sides of closing plate 3 all are "protruding" shape structure, and the inside and outside both sides of closing plate 3 constitute sealed block structure with the upper and lower both sides of inner ring 1 outer end and the seal groove 4 that the upper and lower both sides of outer loop 2 inner were seted up to the inboard middle part of closing plate 3 is the trough-shaped structure, conveniently passes through the sealing connection of closing plate 3 and seal groove 4 on inner ring 1 and the outer loop 2, conveniently improves the leakproofness of this bearing.

The working principle is as follows: when the spindle bearing is used, the bearing is installed on a machine tool which needs to be used, the sealing plate 3 is installed between the inner ring 1 and the outer ring 2 in a clamping mode, the inner ring 1 and the outer ring 2 can be effectively sealed through the sealing plate 3, external dirty dirt is prevented from entering, meanwhile, the honeycomb sound-absorbing cotton plate 302 and the foam plate 303 are arranged between the first hard rubber plate 301 and the second hard rubber plate 304 on the inner side of the sealing plate 3, the noise reduction effect of the bearing can be effectively improved, and the overall quality of the spindle bearing is further improved;

this locating plate 6 is installed to the inboard block of closing plate 3, can effectively fix a position ball 7 through locating plate 6, make things convenient for ball 7 stable use, and then improve this bearing inner structure's stability, this inner ring 1 and outer loop 2 all through outer just layer 101, reinforcement muscle 102 and interior just layer 103 constitute, reinforcement muscle 102 block is between outer just layer 101 and interior just layer 103, and then improve the rigidity of this inner ring 1 and outer ring 2, and then avoid this bearing the phenomenon that the fracture appears when using for a long time, above just be the working process of whole device, and the content of not making detailed description in this specification all belongs to the known prior art of the professional technical personnel in this field.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a main shaft bearing that leakproofness of making an uproar falls, includes inner ring (1), outer loop (2) and ball (7), its characterized in that: the outside of inner ring (1) is provided with outer loop (2), and the surface of inner ring (1) and the internal surface of outer loop (2) all are provided with built-in slider (5), be provided with locating plate (6) between inner ring (1) and outer loop (2), and connecting hole (8) have evenly been seted up on the surface of locating plate (6) to one-to-one is provided with ball (7) on locating plate (6) surface connecting hole (8), seal groove (4) have all been seted up to the upper and lower both sides of inner end and outer loop (2) upper and lower both sides of inner end of inner ring (1), upper and lower both ends between inner ring (1) and outer loop (2) all are provided with closing plate (3).

2. The main shaft bearing with noise reduction and good sealing performance as claimed in claim 1, wherein: the inner ring (1) comprises an outer rigid layer (101), reinforcing ribs (102) and an inner rigid layer (103), the reinforcing ribs (102) are clamped between the outer rigid layer (101) and the inner rigid layer (103), the upper side and the lower side of each reinforcing rib (102) are of a concave-convex structure, and the inner ring (1) and the outer ring (2) are made of the same material.

3. The main shaft bearing with noise reduction and good sealing performance as claimed in claim 1, wherein: the sealing plate (3) is composed of a first hard rubber plate (301), a sound absorption cotton plate (302), a foam plate (303) and a second hard rubber plate (304), the sound absorption cotton plate (302) is arranged below the first hard rubber plate (301), the foam plate (303) is arranged below the sound absorption cotton plate (302), and the second hard rubber plate (304) is arranged below the foam plate (303).

4. The spindle bearing with noise reduction and good sealing performance as claimed in claim 3, wherein: the sound-absorbing cotton plate (302) is of a honeycomb structure, and the sound-absorbing cotton plate (302) is connected with the foam plate (303) in an adhesive manner.

5. The main shaft bearing with noise reduction and good sealing performance as claimed in claim 1, wherein: the inside and outside both sides of closing plate (3) all are "protruding" shape structure, and sealing groove (4) that inside and outside both sides and the upper and lower both sides of inner ring (1) outer end and outer loop (2) inner upper and lower both sides of closing plate (3) were seted up constitute sealed block structure to the inboard middle part of closing plate (3) is the groove-shaped structure.

6. The main shaft bearing with noise reduction and good sealing performance as claimed in claim 1, wherein: the positioning plate (6) is located in the middle of the ball (7), and the upper end and the lower end of the positioning plate (6) are clamped with the groove-shaped structures in the middle of the inner side of the sealing plate (3).

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