CN-224200990-U - Bearing protection structure

CN224200990UCN 224200990 UCN224200990 UCN 224200990UCN-224200990-U

Abstract

The application discloses a bearing protection structure, and belongs to the field of bearing accessories. The anti-dust device comprises a protective cover and a dust cover, wherein the protective cover is provided with an installation part, the inner diameter of the installation part is matched with the outer diameter of the shaft neck, the protective cover is provided with a first dust-proof part which is in butt joint with the end face of the bearing inner ring and forms a gap with the end face of the bearing, and a second dust-proof part which is larger than the diameter of the bearing outer ring, the second dust-proof part is provided with the dust cover, and the dust cover is provided with a third dust-proof part which is in contact with the outer wall face of the bearing. The anti-dust printing machine has the beneficial effects that the abutting part abuts against the end face of the inner ring of the bearing, so that dust can be prevented from entering the bearing from the inner ring of the bearing, meanwhile, the third dustproof part of the dustproof sleeve is attached to the outer wall surface of the outer ring of the bearing, so that the dust can be isolated from entering the bearing along the gap between the outer ring of the bearing or the inner ring of the bearing and the bearing retainer, and meanwhile, the protective cover also plays a role in preventing bearing balls from being damaged in printing and falling out to crush parts of the printing machine.

Inventors

WU LIESONG
Tan Xiangen
ZHENG FENG
MA JIE
CHEN SHANSHAN
HUANG RUIYI

Assignees

温州浙报文化有限公司

Dates

Publication Date: 20260505
Application Date: 20250708

Claims (8)

1. The bearing protection structure comprises bearings which are arranged on journals at two ends of a driving roller, wherein one end face of each bearing is contacted with the end face of the driving roller; The protective structure is characterized by comprising a protective cover and a dust cover; The protective cover is provided with a first dustproof part and a second dustproof part, wherein the first dustproof part is used for forming a gap with the end surface of the bearing, and the second dustproof part is larger than the diameter of the outer ring of the bearing; The second dustproof part is provided with the dustproof sleeve, and the dustproof sleeve is provided with a third dustproof part which is contacted with the outer wall surface of the bearing.
2. A bearing shield structure according to claim 1, wherein: The protective cover comprises a first protective shell and a second protective shell; The mounting part, the abutting part, the first dustproof part and the second dustproof part are arranged on the first protective shell and the second protective shell; the dustproof sleeves are respectively arranged on the first protective shell and the second protective shell.
3. A bearing shield structure according to claim 2, wherein: The mounting part of the first protective shell is provided with a first connecting plate, and the mounting part of the second protective shell is provided with a second connecting plate; A bolt is arranged to pass through the through hole and be connected with the nut.
4. A bearing shield structure according to claim 3, wherein: the mounting part of the first protective shell is provided with a caulking groove, the mounting part of the second protective shell is provided with a protruding block, and the protruding block is matched with the caulking groove in size.
5. The bearing shield structure of claim 4 wherein: The mounting part is internally provided with a mounting groove, a rubber block is arranged in the mounting groove, and a plurality of rubber bulges which are contacted with the outer wall surface of the shaft neck are arranged on the rubber block.
6. A bearing shield structure according to claim 1 or 5, wherein: The first dustproof part is provided with an oil filling port, and the axis of the oil filling port extends to a position between the outer ring of the bearing and the retainer of the bearing.
7. The bearing shield structure of claim 6 wherein: The protection structure also comprises a rubber block and a connecting rope; One end of the connecting rope is connected with the first dustproof part, and the other end of the connecting rope is connected with the rubber blocking block; the rubber blocking block is in threaded fit with the oil filling port.
8. A bearing shield structure according to claim 1 or 7, wherein: The third dust prevention part is a flexible bristle.

Description

Bearing protection structure Technical Field The application relates to the field of bearing accessories, in particular to a bearing protection structure. Background The bearing at driving roller both ends is in long-time use, and the dust can enter into the bearing inside along the clearance between bearing inner race or the bearing inner race and the bearing holder, makes the frictional force between bearing holder and the ball grow, and then leads to the holder wearing and tearing, and the holder wearing and tearing later then can influence the life of bearing. Disclosure of utility model In order to solve the technical problems mentioned in the background art, some embodiments of the application provide a bearing protection structure, which comprises a protection cover and a dust cover, wherein the bearing is arranged on journals at two ends of a driving roller, one end face of the bearing is in contact with the end face of the driving roller, the protection cover is provided with an installation part, the inner diameter of the installation part is matched with the outer diameter of the journals, the protection cover is provided with a first dust prevention part which is in contact with the end face of an inner ring of the bearing, a gap is formed between the protection cover and the end face of the bearing, and a second dust prevention part which is larger than the diameter of an outer ring of the bearing, the dust cover is arranged on the second dust prevention part, and the dust cover is provided with a third dust prevention part which is in contact with the outer wall face of the bearing. Further, the protective cover comprises a first protective shell and a second protective shell, the mounting portion, the abutting portion, the first dustproof portion and the second dustproof portion are arranged on the first protective shell and the second protective shell, and the dustproof cover is arranged on the first protective shell and the second protective shell respectively. Further, a first connecting plate is arranged on the mounting part of the first protective shell, a second connecting plate is arranged on the mounting part of the second protective shell, through holes are formed in the first connecting plate and the second connecting plate, and a bolt penetrates through the through holes and is connected with a nut. Further, the mounting part of the first protective shell is provided with a caulking groove, the mounting part of the second protective shell is provided with a protruding block, and the protruding block is matched with the caulking groove in size. Further, a mounting groove is formed in the mounting portion, a rubber block is arranged in the mounting groove, and a plurality of rubber protrusions which are in contact with the outer wall surface of the shaft neck are arranged on the rubber block. Further, an oil filling port is formed in the first dustproof portion, and the axis of the oil filling port extends to a position between the bearing outer ring and the bearing retainer. The protection structure further comprises a rubber blocking block and a connecting rope, one end of the connecting rope is connected with the first dustproof part, the other end of the connecting rope is connected with the rubber blocking block, and the rubber blocking block is in threaded fit with the oil filling port. Further, the third dust prevention part is a flexible bristle. The application has the beneficial effects that: The setting of butt portion and bearing inner race terminal surface butt can prevent that the dust from getting into the bearing from the bearing inner race, and the third dustproof portion laminating bearing outer race outer wall surface of cooperation dirt proof boot simultaneously to inside isolated dust enters into the bearing along the clearance between bearing outer race or bearing inner race and the bearing holder, eliminate the problem that increases because of the holder and the ball friction that the dust leads to from the root, in order to increase bearing life. Drawings The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application. In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale. In the drawings: FIG. 1 is an overall schematic of an embodiment according to the present application; FIG. 2 is an enlarged view of the portion A of FIG. 1, mainly showing the structure of the filler neck, the rubber plug and the connecting rope; FIG. 3 is a schematic view of a partial explosion of an embodiment, mainly showing the structure of the first connection plate, the sec