Bearing inner ring and sealed bearing

Abstract

The utility model discloses a bearing inner ring and sealed bearing relates to bearing technical field, including outer ring body, the inner side of outer ring body is provided with two clamping groove, the inner side of outer ring body is provided with four sealing cover that is engaged with clamping groove butt joint, the outer side of each sealing cover is convex structure, the outer side of outer ring body is convex structure. A waterproof rubber sleeve is fixedly installed at the top end of each sealing cover, the sealing covers are bent, the inner sides of the sealing covers are aligned with the clamping grooves, the reset pieces have certain elasticity, the two ends of the sealing covers are aligned with the outer ring body and the inner ring body correspondingly, the tail ends of the sealing covers are designed to be arc-shaped and attached to the surfaces of the clamping grooves, and the sealing covers are fixed to the outer ring body and the inner ring body. The two sealing covers are clamped into the inner side of the outer ring body, the two sealing covers are aligned, glue is smeared on the surface of the waterproof rubber sleeve, the waterproof rubber sleeve is inserted into the other sealing cover, the two sealing covers are combined and installed, and the split type design is adopted, so that disassembly, assembly and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, especially a bearing inner race and sealed bearing. BACKGROUND

[0002] Bearing application is very extensive, and many bearings work in harsh environment, and there are a large amount of dust, oil, corrosive gas and the like around. In order to prevent these foreign matters, oil and corrosive gas from invading, usually need sealing ring contact lip and bearing dust groove are made into interference fit to realize, in practical application, bearing usually needs the following technology:

[0003] 1, inner race, provides a rotating support surface for rolling element;

[0004] 2, outer ring, bears the load transmitted from rolling element;

[0005] 3, rolling element, is the key element for realizing rolling friction in bearing;

[0006] The bearing is internally installed with retainer, and the rolling elements are uniformly separated, to prevent mutual collision and friction between rolling elements, ensure that rolling elements roll on the raceway of inner and outer rings according to the specified track, make each rolling element bear force uniformly, and form an oil film between the contact surfaces of rolling elements and inner and outer rings by lubricating oil, reduce friction and wear, reduce the running temperature of bearing, and improve the efficiency and service life of bearing.

[0007] Bearing needs to rely on lubricating grease or lubricating oil to reduce friction and wear during operation, and the two sides of the bearing are bare design, and the lubricating medium is easy to leak out from the side end of the bearing, and impurities mix into the lubricating medium through the gap of the two sides of the bearing, or directly scratch the rolling element and the raceway surface, produce abrasive wear, and make the precision of the bearing decrease. INVENTION CONTENTS

[0008] In view of the defects of the prior art, the utility model provides a bearing inner race and sealed bearing, which solves the technical problems that the lubricating medium is easy to leak out from the side end of the bearing, and impurities mix into the lubricating medium through the gap of the two sides of the bearing, or directly scratch the rolling element and the raceway surface, produce abrasive wear, and make the precision of the bearing decrease.

[0009] To achieve the above object, the utility model realizes the following technical scheme:

[0010] A bearing inner race and sealed bearing, comprising an outer ring body, two clamping grooves are formed in the inner side of the outer ring body, four sealing covers are arranged on the inner side of the outer ring body and are in abutment engagement with the clamping grooves, the outer side of each sealing cover is a convex structure, and a waterproof rubber sleeve is fixedly installed at the top end of each sealing cover.

[0011] Preferably, the top end of each sealing cover is fixedly provided with a reset sheet for docking, and the shape of each reset sheet is the same as that of the sealing cover.

[0012] The top end of each sealing cover is provided with a mounting groove, and the mounting groove is aligned with the opening in the waterproof rubber sleeve.

[0013] The top end of each reset sheet is fixedly provided with a guide plug plate which is in abutment with the mounting groove, and each guide plug plate is obliquely arranged.

[0014] The outer side of each guide plug plate is provided with an engaging groove, and each engaging groove is in clamping connection with the sealing cover.

[0015] Preferably, the inner ring body is provided with two sealing rubber strips which are fixedly arranged on the outer side of the inner ring body and are aligned with the clamping groove.

[0016] The outer side of each sealing rubber strip is arc-shaped and is in abutment with the inner side of the sealing cover, and each sealing rubber strip is made of nitrile rubber.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] In the utility model, by moving the sealing cover, one end of the sealing cover is aligned with the clamping groove, and the outer side of the clamping groove is aligned with the clamping groove, the sealing cover is clamped between the outer ring body and the inner ring body by mutual extrusion of the outer ring body and the inner ring body, impurities are prevented from entering the bearing by the separation, the clean environment in the bearing is maintained, the friction loss is reduced, the bearing parts are prevented from rusting and corroding, and the material performance and structural integrity of the bearing are protected.

[0019] In the utility model, by bending the sealing cover, the inner side of the sealing cover is aligned with the clamping groove, the end of the sealing cover is arc-shaped and is in abutment with the surface of the clamping groove, the two sealing covers are clamped into the inner side of the outer ring body, the waterproof rubber sleeve is inserted into the other sealing cover by aligning the two sealing covers and smearing glue on the surface of the waterproof rubber sleeve, the two sealing covers are combined and installed, and the split type design facilitates disassembly and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following will be described in detail with the preferred embodiments of the utility model and the accompanying drawings.

[0021] Figure 1 It is a structure diagram of the outer ring body of the utility model;

[0022] Figure 2 It is a structure diagram of the inner ring body of the utility model;

[0023] Figure 3 The utility model discloses a sealing cover structure diagram;

[0024] Figure 4 The utility model discloses a sealing cover structure diagram; Figure 3 The utility model discloses a sealing cover structure diagram;

[0025] In the drawing: 11, outer ring body;12, inner ring body;13, sealing cover;14, clamping groove;15, sealing rubber strip;16, waterproof rubber sleeve;17, reset piece;18, guide plugboard;19, meshing groove;21, installation slot. Specific implementation

[0026] The application embodiment provides a bearing inner ring and a sealing bearing, effectively solves the problem that lubricating medium is easy to leak from the side end of the bearing, impurities are mixed into the lubricating medium through the gap on both sides of the bearing, or directly scratch the rolling body and the raceway surface, produce abrasive wear, and the precision of the bearing is reduced, one end of the sealing cover is aligned with the clamping groove by moving the sealing cover, the outside of the clamping groove is aligned with the clamping groove, the sealing cover is clamped between the outer ring body and the inner ring body by extruding the outer ring body and the inner ring body, impurities can be prevented from entering the inside of the bearing by the separation, the clean environment in the inside of the bearing is maintained, the friction loss is reduced, the bearing parts are prevented from rusting and corroding, the material performance and structural integrity of the bearing are protected.

[0027] Embodiment

[0028] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the technical scheme in the application embodiment effectively solves the technical problem that lubricating medium is easy to leak from the side end of the bearing, impurities are mixed into the lubricating medium through the gap on both sides of the bearing, or directly scratch the rolling body and the raceway surface, produce abrasive wear, and the precision of the bearing is reduced, and the general idea is as follows:

[0029] The utility model provides a bearing inner race and sealed bearing, including the outer ring body 11, the inside of outer ring body 11 is equipped with two clamping grooves 14, the inside of outer ring body 11 is provided with four sealed covers 13 and is engaged with the butt joint of clamping groove 14, the outside of every sealed cover 13 is convex structure, the top of every sealed cover 13 is fixedly installed with waterproof rubber sleeve 16, sealed cover 13 is split type design, by moving sealed cover 13, the one end of sealed cover 13 is aligned with clamping groove 14, and the outside of clamping groove 14 is engaged with clamping groove 14 alignment, by the mutual extrusion of outer ring body 11 and inner ring body 12, sealed cover 13 is clamped between outer ring body 11 and inner ring body 12, by separation, can prevent impurity from entering the bearing inside, maintain the clean environment of bearing inside, reduce friction loss, avoid bearing component rust, corrosion, protect the material performance and structural integrity of bearing,

[0030] The top of every sealed cover 13 is fixedly installed with reset piece 17 for butt joint, the shape of every reset piece 17 is same with sealed cover 13, is laid in the inside of sealed cover 13, every sealed cover 13 is memory metal material, reset piece 17 has certain elasticity, when sealed cover 13 is bent, reset piece 17 supports sealed cover 13 reset, aligns the two ends of sealed cover 13 with outer ring body 11 and inner ring body 12 respectively;

[0031] By bending sealed cover 13, the inside of sealed cover 13 is aligned with clamping groove 14 first, the end of sealed cover 13 is arc design, fits the surface of clamping groove 14, two sealed covers 13 are clamped into the inside of outer ring body 11 respectively, by aligning two sealed covers 13, the surface of waterproof rubber sleeve 16 is smeared with glue, waterproof rubber sleeve 16 is inserted into the inside of another sealed cover 13 respectively, two sealed covers 13 are combined and installed, by split type design, it is convenient to disassemble and maintain;

[0032] The top of every sealed cover 13 is equipped with installation groove 21, every installation groove 21 is aligned with the opening in waterproof rubber sleeve 16, the inside of installation groove 21 is inserted with guide plug 18, and the two ends of sealed cover 13 are aligned;

[0033] The top of every reset piece 17 is fixedly installed with guide plug 18 and is connected with installation groove 21, every guide plug 18 is inclined installation, by moving sealed cover 13, waterproof rubber sleeve 16 is inserted into another sealed cover 13, and guide plug 18 enters the inside of installation groove 21 along with reset piece 17, guide plug 18 is inclined design, and is frictional with the inner wall of installation groove 21, is bent, and when reset, the engagement groove 19 of the side end of guide plug 18 is connected with the positioning strip in installation groove 21, and guide plug 18 is clamped into the inside of installation groove 21;

[0034] The outer side of each guide plug 18 is provided with an engaging groove 19, and each engaging groove 19 is clamped with the inner side of the sealing cover 13;

[0035] The inner ring body 12 is fixedly installed with two sealing rubber strips 15 on the outer side, each sealing rubber strip 15 is aligned with the clamping groove 14, the outer side of each sealing rubber strip 15 is arc-shaped design and is attached to the inner side of the sealing cover 13, each sealing rubber strip 15 is made of nitrile rubber material, has good wear resistance, can withstand a certain degree of friction without being easily damaged, and also has good elasticity and sealing performance.

[0036] Working principle:

[0037] Firstly, by moving the sealing cover 13, the waterproof rubber sleeve 16 is inserted into the other sealing cover 13, the guide plug 18 is inserted into the inner side of the installation groove 21 along with the reset piece 17, the guide plug 18 is inclined design and rubs with the inner wall of the installation groove 21 to produce bending, and at the same time, the guide plug 18 is reset, the engaging groove 19 at the side end of the guide plug 18 is connected with the positioning strip in the installation groove 21, the guide plug 18 is clamped into the inner side of the installation groove 21, the sealing cover 13 is bent, the inner side of the sealing cover 13 is aligned with the clamping groove 14, the reset piece 17 has a certain elasticity, supports the sealing cover 13 to reset while the sealing cover 13 is bent, the two ends of the sealing cover 13 are aligned with the outer ring body 11 and the inner ring body 12 respectively, the end of the sealing cover 13 is arc-shaped design and is attached to the surface of the clamping groove 14, the two sealing covers 13 are clamped into the inner side of the outer ring body 11 respectively, the waterproof rubber sleeve 16 is inserted into the other sealing cover 13, the two sealing covers 13 are combined and installed, and the split design is convenient for disassembly and maintenance.

[0038] Secondly, by extruding the outer ring body 11 and the inner ring body 12, the sealing cover 13 is clamped between the outer ring body 11 and the inner ring body 12, the separation can prevent impurities from entering the bearing, maintain the clean environment inside the bearing, reduce the friction loss, avoid rust and corrosion of the bearing parts, protect the material performance and structural integrity of the bearing, the sealing rubber strip 15 is made of nitrile rubber material, has good wear resistance, can withstand a certain degree of friction without being easily damaged, and also has good elasticity and sealing performance.

[0039] Finally, it should be noted that: apparently, the above embodiments are merely examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A sealed bearing comprising an outer ring body (11), characterised in that, The inner side of the outer ring body (11) is provided with two clamping grooves (14), and the inner side of the outer ring body (11) is provided with four sealing covers (13) in butt joint engagement with the clamping grooves (14), the outer side of each sealing cover (13) is a convex structure, and the top end of each sealing cover (13) is fixedly provided with a waterproof rubber sleeve (16).

2. A sealed bearing as claimed in claim 1, wherein The top end of each sealing cover (13) is fixedly provided with a reset sheet (17) for butt joint, and the shape of each reset sheet (17) is the same as that of the sealing cover (13).

3. A sealed bearing as claimed in claim 1, wherein, The top end of each sealing cover (13) is provided with a mounting groove (21), and each mounting groove (21) is aligned with the opening in the waterproof rubber sleeve (16).

4. A sealed bearing as claimed in claim 2, wherein The top end of each reset sheet (17) is fixedly provided with a guide plugboard (18) in butt joint with the mounting groove (21), and each guide plugboard (18) is obliquely installed.

5. A sealed bearing as claimed in claim 4, wherein The outer side of each guide plugboard (18) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13).

6. A bearing inner ring for use in a sealed bearing according to any one of claims 1 to 5, comprising an inner ring body (12), characterised in that The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13).

7. A bearing inner race as claimed in claim 6, wherein The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with the inside of the sealing cover (13). The outer side of each sealing cover (13) is provided with an engagement groove (19), and each engagement groove (19) is in clamping engagement with

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