Bearing protection structure

Abstract

The utility model discloses a bearing protection structure, and belongs to the field of bearing accessories. Comprising a protective cover and a dustproof sleeve, the protective cover is provided with a mounting part, and the inner diameter of the mounting part is matched with the outer diameter of the shaft neck; the protective cover is provided with an abutting part abutting against the end face of the bearing inner ring, a first dustproof part forming a gap with the end face of the bearing, and a second dustproof part larger than the diameter of the bearing outer ring. The dustproof sleeve is arranged on the second dustproof part and provided with a third dustproof part making contact with the outer wall face of the bearing. The dust-proof bearing has the beneficial effects that the abutting part abuts against the end face of the bearing inner ring, dust can be prevented from entering the bearing from the bearing inner ring, meanwhile, the third dust-proof part of the dust-proof sleeve is attached to the outer wall face of the bearing outer ring so that dust can be prevented from entering the bearing along the bearing outer ring or a gap between the bearing inner ring and the bearing retainer, and meanwhile the dust-proof effect is achieved. And the protective cover also plays a role in preventing the bearing balls from being damaged and falling out to crush components of the printing machine during printing.

Description

Technical Field

[0001] This application relates to the field of bearing components, and more specifically, to a bearing protection structure. Background Technology

[0002] During prolonged use, dust can enter the bearings located at both ends of the drive roller through the gap between the outer or inner ring and the bearing cage. This increases the friction between the bearing cage and the balls, leading to cage wear, which in turn affects the service life of the bearing. Utility Model Content

[0003] To address the technical problems mentioned in the background section, some embodiments of this application provide a bearing protection structure, including: the bearing is disposed on journals at both ends of a transmission roller, and one end face of the bearing contacts the end face of the transmission roller; the protection structure includes: a protective cover and a dust cover; the protective cover is provided with a mounting portion, the inner diameter of which matches the outer diameter of the journal; the protective cover is provided with an abutting portion that abuts against the end face of the inner ring of the bearing, a first dust cover that forms a gap with the end face of the bearing, and a second dust cover that is larger than the diameter of the outer ring of the bearing; the dust cover is disposed on the second dust cover, and the dust cover is provided with a third dust cover that contacts the outer wall surface of the bearing.

[0004] Furthermore, the protective cover includes: a first protective shell and a second protective shell; the first protective shell and the second protective shell are each provided with the mounting part, the abutting part, the first dustproof part and the second dustproof part; the dustproof sleeve is respectively provided on the first protective shell and the second protective shell.

[0005] Furthermore, a first connecting plate is provided on the mounting portion of the first protective shell, and a second connecting plate is provided on the mounting portion of the second protective shell; both the first connecting plate and the second connecting plate are provided with through holes; a bolt is provided to pass through the through holes and connect with a nut.

[0006] Furthermore, the mounting portion of the first protective shell is provided with a groove; the mounting portion of the second protective shell is provided with a protrusion; the size of the protrusion matches that of the groove.

[0007] Furthermore, an installation groove is provided in the installation part; a rubber block is provided in the installation groove; and multiple rubber protrusions are provided on the rubber block that contact the outer wall surface of the journal.

[0008] Furthermore, an oil filling port is provided on the first dustproof part; the axis of the oil filling port extends between the outer ring of the bearing and the bearing cage.

[0009] Furthermore, the protective structure also includes: a rubber plug and a connecting rope; one end of the connecting rope is connected to the first dustproof part, and the other end of the connecting rope is connected to the rubber plug; the rubber plug is threaded into the oil inlet.

[0010] Furthermore, the third dustproof part is made of flexible bristles.

[0011] The beneficial effects of this application are as follows:

[0012] The abutment part abuts against the end face of the bearing inner ring, which can prevent dust from entering the bearing from the bearing inner ring. At the same time, the third dustproof part of the dustproof sleeve fits against the outer wall of the bearing outer ring to prevent dust from entering the bearing through the gap between the bearing outer ring or the bearing inner ring and the bearing cage. This eliminates the problem of increased friction between the cage and the balls caused by dust at the source, thereby extending the service life of the bearing. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0014] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0015] In the attached diagram:

[0016] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0017] Figure 2 yes Figure 1 The enlarged view of part A mainly shows the structure of the oil inlet, rubber plug and connecting rope;

[0018] Figure 3 This is a partial exploded view of an embodiment, mainly showing the structure of the first connecting plate, the second connecting plate, and some surrounding parts;

[0019] Figure 4 This is a partial exploded view of an embodiment, mainly showing the structure of the mounting groove, the recess, and some surrounding parts;

[0020] Figure 5 This is a structural diagram of a part of an embodiment, mainly showing the structure of the second protective shell;

[0021] Figure 6 This is a structural schematic diagram as part of an embodiment, mainly showing the cross-sectional structure of the first protective shell and the bearing.

[0022] Figure label:

[0023] 1. Bearing; 2. Drive roller; 3. Protective cover; 31. First protective shell; 311. First connecting plate; 312. Groove; 32. Second protective shell; 321. Mounting part; 322. Abutting part; 323. First dustproof part; 3231. Oil inlet; 324. Second dustproof part; 325. Second connecting plate; 326. Protrusion; 327. Mounting groove; 328. Rubber block; 4. Dustproof sleeve; 41. Third dustproof part; 5. Rubber plug; 6. Connecting rope. Detailed Implementation

[0024] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0025] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0026] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0027] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0028] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Reference Figure 1-6 ,

[0030] A bearing protection structure includes a bearing 1 mounted on journals at both ends of a transmission roller 2, with one end face of the bearing 1 contacting the end face of the transmission roller 2. The protection structure includes a protective cover 3 and a dust cover. The protective cover 3 is made of metal or plastic; in this embodiment, the protective cover 3 is made of stainless steel. The dust cover is made of plastic. The protective cover 3 has a mounting portion 321, the inner diameter of which matches the diameter of the journal; the mounting portion 321 has an annular structure. The protective cover 3 has an abutment portion 322 that abuts against the inner ring end face of the bearing 1, a first dust cover 323 that forms a gap with the end face of the bearing 1, and a second dust cover 324 larger than the diameter of the outer ring of the bearing 1; the abutment portion 322 has a block structure, and the first dust cover 323 and the second dust cover 324 are both plate structures. The dust cover is mounted on the second dust cover 324, and the dust cover has a third dust cover that contacts the outer wall surface of the bearing 1. The protective cover 3 is fixed to the second dustproof part 324 with epoxy resin adhesive. The abutment part 322 abuts against the end face of the inner ring of the bearing 1 to prevent dust from entering the bearing 1 from the inner ring. At the same time, the third dustproof part of the dustproof sleeve fits against the outer wall of the outer ring of the bearing 1 to prevent dust from entering the bearing 1 through the gap between the outer ring of the bearing 1 or the inner ring of the bearing 1 and the cage of the bearing 1. This eliminates the problem of increased friction between the cage and the balls caused by dust at the source, thereby extending the service life of the bearing 1. After prolonged use, the cage of the bearing 1 may be damaged, and the balls of the bearing 1 may fall out of the bearing. The fallen balls may damage other equipment or injure nearby personnel. The protective cover provided in this embodiment can keep the balls inside the bearing 1 after installation, thereby preventing the balls from falling out of the bearing 1 and causing damage to other equipment, as well as preventing the fallen balls from injuring personnel.

[0031] Specifically, the protective cover 3 includes: a first protective shell 31 and a second protective shell 32; both the first protective shell 31 and the second protective shell 32 are provided with the mounting part 321, the abutment part 322, the first dustproof part 323, and the second dustproof part 324; the dustproof sleeve is fixedly disposed on the first protective shell 31 and the second protective shell 32 respectively. The first protective shell 31 and the second protective shell 32 are combined to form the protective cover 3. This split design provides great convenience for later maintenance or repair. For example, when it is necessary to apply grease to the bearing 1, the user does not need to disassemble the entire transmission roller 2, but only needs to disassemble the first protective shell 31 and the second protective shell 32, and then apply the grease to the bearing 1.

[0032] Specifically, a first connecting plate 311 is provided on the mounting portion 321 of the first protective shell 31, and a second connecting plate is provided on the mounting portion 321 of the second protective shell 32; both the first connecting plate 311 and the second connecting plate are provided with through holes; a bolt is provided to pass through the through holes and connect with a nut. The first connecting plate 311 and the second connecting plate are provided to assemble the first protective shell 31 and the second protective shell 32 together. When installing the first protective shell 31 and the second protective shell 32, the user can first place the first protective shell 31 or the second protective shell 32 on the journal of the transmission roller 2, match the positions of the through holes on the first connecting plate 311 and the second connecting plate, then pass the bolt through the washer, and finally pass the bolt through the through hole and tighten it with the nut. The operation is simple.

[0033] Specifically, a groove 312 is provided on the mounting portion 321 of the first protective shell 31; a protrusion is provided on the mounting portion 321 of the second protective shell 32; the size of the protrusion matches that of the groove 312. When workers directly install the first protective shell 31 and the second protective shell 32, the first and second protective shells 31 and 32 may not be completely aligned and fixed. Therefore, in this embodiment, the groove 312 and the protrusion are provided to position the first and second protective shells 31 and 32. During installation, the user can first bring the outer wall surface of the protrusion into contact with the inner wall surface of the groove 312, and then insert the bolt into the through hole.

[0034] Specifically, an installation groove is formed in the mounting part 321; a rubber block is provided in the mounting groove; multiple rubber protrusions are provided on the rubber block that contact the outer wall of the journal. Epoxy adhesive is applied to the side of the rubber block facing away from the rubber protrusions to fix it in the mounting groove. After the transmission roller 2 rotates for a long time, the fit between the bolts and nuts may loosen, causing the first protective shell 31 and the second protective shell 32 to slide on the journal. After sliding, the first protective shell 31 and the second protective shell 32 will no longer be able to achieve the dustproof effect for the bearing 1. Therefore, in this embodiment, a rubber block is provided to increase the friction between the first protective shell 31 and the second protective shell 32 and the journal. At the same time, it is necessary for the operator to regularly check the position of the first protective shell 31 and the second protective shell 32, as well as the bolts on the first protective shell 31 and the second protective shell 32, to prevent the bolts on the first protective shell 31 and the second protective shell 32 from loosening.

[0035] Specifically, an oil inlet 3231 is provided on the first dustproof part 323; the axis of the oil inlet 3231 extends between the outer ring of the bearing 1 and the cage of the bearing 1. The oil inlet 3231 provides convenience for operators, allowing them to inject grease into the bearing 1 without disassembling the protective cover 3. During use, operators can fill the grease into the grease bottle, then insert the grease injection tube on the grease bottle into the oil inlet 3231 until the injection tube is located between the outer ring of the bearing 1 and the cage of the bearing 1, and inject the grease into the bearing 1 by squeezing the bottle body with external force.

[0036] Specifically, the protective structure further includes a rubber plug and a connecting rope; one end of the connecting rope is connected to the first dustproof part 323, and the other end of the connecting rope is connected to the rubber plug; the rubber plug is threaded into the oil filling port 3231. Specifically, the first dustproof part 323 is provided with a connecting block, and the end of the connecting rope facing away from the rubber plug is fixedly connected to the connecting block. After the operator injects grease into the bearing 1, the rubber plug can seal the oil filling port 3231 to prevent dust from entering the bearing 1 through the oil filling port 3231.

[0037] Specifically, the third dustproof part is a flexible bristle. The flexible bristle can block dust in the air, thereby preventing dust from entering the bearing 1. After prolonged use, the protective structure can be disassembled and the flexible bristles cleaned. In other embodiments, the third dustproof part is a sponge.

[0038] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A bearing protection structure, comprising: the bearing is disposed on journals at both ends of a transmission roller, and one end face of the bearing is in contact with the end face of the transmission roller; Its features are, The protective structure includes: a protective cover and a dust cover; The protective cover is provided with a mounting part, the inner diameter of which matches the outer diameter of the journal; the protective cover is provided with an abutting part that abuts against the inner ring end face of the bearing, a first dustproof part that forms a gap with the bearing end face, and a second dustproof part that is larger than the outer ring diameter of the bearing. The dustproof sleeve is provided on the second dustproof part, and the dustproof sleeve is provided with a third dustproof part that contacts the outer wall surface of the bearing.

2. The bearing protection structure according to claim 1, characterized in that: The protective cover includes: a first protective shell and a second protective shell; Both the first protective shell and the second protective shell are provided with the mounting part, the abutting part, the first dustproof part and the second dustproof part; The dust covers are respectively installed on the first protective shell and the second protective shell.

3. The bearing protection structure according to claim 2, characterized in that: A first connecting plate is provided on the mounting portion of the first protective shell, and a second connecting plate is provided on the mounting portion of the second protective shell; both the first connecting plate and the second connecting plate are provided with through holes; A bolt is installed to pass through the through hole and connect to the nut.

4. The bearing protection structure according to claim 3, characterized in that: The first protective shell has a groove on its mounting portion; the second protective shell has a protrusion on its mounting portion; the size of the protrusion matches that of the groove.

5. A bearing protection structure according to claim 4, characterized in that: An installation groove is provided in the installation part; a rubber block is provided in the installation groove; and multiple rubber protrusions are provided on the rubber block to contact the outer wall surface of the journal.

6. A bearing protection structure according to claim 1 or 5, characterized in that: An oil filling port is provided on the first dustproof part; the axis of the oil filling port extends between the outer ring of the bearing and the cage of the bearing.

7. A bearing protection structure according to claim 6, characterized in that: The protective structure also includes: a rubber plug and a connecting rope; One end of the connecting rope is connected to the first dustproof part, and the other end of the connecting rope is connected to the rubber plug. The rubber plug is threaded into the oil inlet.

8. A bearing protection structure according to claim 1 or 7, characterized in that: The third dustproof part is made of flexible bristles.

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