CN220320109U - Bearing outer ring and rolling bearing with same - Google Patents

Abstract

The utility model discloses a bearing outer ring and a rolling bearing with the same, comprising an outer ring body, rollers, a front retainer and an inner ring body, wherein a first limit groove is formed in the center of the inner ring of the outer ring body, the cross section of the first limit groove is arc-shaped, chrome plating layers are plated outside the outer ring body and the first limit groove, and diamond coating layers are plated outside the chrome plating layers.

Description

Bearing outer ring and rolling bearing with same

Technical Field

The utility model relates to the technical field of rolling bearings, in particular to a bearing outer ring and a rolling bearing with the same.

Background

The support should be taken to be a support, i.e. to be interpreted literally for bearing the shaft, but this is only a part of its action, supporting it essentially is capable of bearing radial loads. It is also understood that it is intended to fix a shaft. The bearing is fast and easy to optimize and has the function of automatic selection. The fixed shaft can only rotate, and the axial and radial movements of the fixed shaft are controlled, and the rolling bearing is divided into a radial bearing and a thrust bearing according to the difference of the bearable load direction or the nominal contact angle of the rolling bearing. The radial contact bearing is a radial bearing with a nominal contact angle of 0, and the radial contact bearing is a radial bearing with a nominal contact angle of more than 0 to 45. The axial contact bearing is a thrust bearing with a nominal contact angle of 90, the thrust angular contact bearing is a thrust bearing with a nominal contact angle of more than 45 but less than 90, and the rolling bearing is one of important parts of rotating machinery equipment and has extremely wide application. For the bearing mainly bearing radial load, during the working process, the inner ring rotates along with the shaft, and the outer ring is fixed in the bearing seat, so that the bearing area of the outer ring of the bearing is basically fixed, and early fatigue failure of the outer ring is extremely easy to occur, thereby influencing the service life of the bearing. Therefore, the inner surface of the bearing outer ring is treated to ensure that the bearing outer ring has good bearing capacity, wear resistance and fatigue resistance so as to prolong the service life of the bearing outer ring.

The present bearing outer ring and rolling bearing who has this bearing outer ring, patent like bulletin number CN215634455U, including bearing outer ring, coupling mechanism and dustproof mechanism, coupling mechanism sets up the inside at bearing outer ring, dustproof mechanism sets up on bearing outer ring, coupling mechanism includes bearing inner ring and ball, the bearing inner ring sets up the inside at bearing outer ring, through ball and the inner wall rolling contact of bearing outer ring in the recess on bearing inner ring surface, during the use, through guard plate, logical groove, fixed block, dead lever, limiting plate, spacing groove, rotatory piece, threaded rod, fixture block and draw-in groove mutually support to the dustproof effect of bearing has been improved greatly, and the dust is accumulated easily to inside when avoiding the bearing to use for a long time to avoid the dust to influence its normal use, avoid the dust to accelerate the wearing and tearing to the bearing, moreover later stage convenience is dismantled the guard plate, thereby conveniently maintains the inside of bearing, brings very big facility for the user, but, and this bearing outside is through sealed the guard plate, and when reducing wearing and tearing, but bearing rotates, the guard plate and the wearing and tearing are bigger when rotating.

Disclosure of Invention

The present utility model has been made in view of the above problems, and an object of the present utility model is to provide a bearing outer ring and a rolling bearing having the same, which solve the problems that the bearing outer ring and the inner ring are worn out and are large when the bearing rotates, although dust is blocked by sealing with a protection plate and abrasion is reduced, in the bearing outer ring and the rolling bearing having the bearing outer ring, which are proposed in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bearing outer lane and have antifriction bearing of this bearing outer lane, includes outer lane body, roller, preceding holder and inner circle body, first spacing groove has been seted up to the central point of outer lane body inner circle, the cross-section of first spacing groove presents the arc, the outer chrome plating layer that has plated of outer lane body and first spacing groove, chrome plating layer can generate one deck very thin passive film rapidly at outer lane body surface, can resist the corruption of atmosphere, alkali and certain acid, and the hardness of cladding layer is higher, can improve the wearability on outer lane body surface, diamond coating has been plated to chrome plating layer's outside, and diamond coating's hardness is high to make outer lane body have higher hardness, the both sides of outer lane body outside are provided with the chamfer, the both sides of the inner lane body outside are provided with the chamfer equally.

Preferably, a second limit groove is formed in the central position of the outer portion of the inner ring body, the section of the second limit groove is arc-shaped, and the second limit groove plays a limiting role.

Preferably, the roller is movably arranged between the first limit groove and the second limit groove, a plurality of groups of rollers are arranged between the first limit groove and the second limit groove, and the rollers are clamped between the first limit groove and the second limit groove to limit the positions of the rollers, so that the bearing is prevented from shifting during high-speed operation.

Preferably, a front retainer is arranged on one side of the outer part of the roller, a rear retainer is arranged on the other side of the outer part of the roller, and a fixing pin is inserted between the front retainer and the rear retainer.

Preferably, the roller and the rear retainer form a limiting structure, and the roller, the first limiting groove and the second limiting groove form a rolling structure. Preferably, the titanium nitride coating is plated on the outer part of the inner ring body, the titanium nitride coating has higher hardness, so that the surface of the inner ring body has higher wear resistance, the strength of the inner ring body is improved, the nickel plating layer is plated on the outer part of the titanium nitride coating, and the titanium nitride coating increases the strength of the inner ring body.

Compared with the prior art, the utility model has the beneficial effects that: the bearing outer ring and the rolling bearing with the same are reasonable in structure and have the following advantages:

(1) The bearing hardness and wear resistance are improved through being provided with the outer ring body, the diamond coating, the chromium coating and the first limiting groove, therefore, through being provided with the chromium coating in the outside of the outer ring body, the chromium coating strengthens characteristics such as wear resistance, fatigue resistance, corrosion resistance and self-lubricating on the surface layer, simultaneously the chromium coating can rapidly generate a layer of extremely thin passive film on the surface of the outer ring body, can resist the corrosion of atmosphere, alkali and certain acids, the hardness of the coating is higher, the wear resistance of the surface of the outer ring body can be improved, and the diamond coating is simultaneously provided, the hardness of the diamond coating is high, so that the outer ring body has higher hardness, and the wear resistance is better, and meanwhile, the outer ring body has good corrosion resistance.

(2) The inner ring body, the nickel plating layer and the titanium nitride coating are arranged to improve the strength of the inner ring body, so that the titanium nitride coating is arranged on the outer surface of the inner ring body, the titanium nitride coating is high in hardness, the wear resistance of the surface of the inner ring body is high, the strength of the inner ring body is improved, and the nickel plating layer is also high in hardness and the strength of the roller is improved.

(3) The concentricity of the bearing can be maintained by the aid of the outer ring body, the inner ring body, the first limiting groove and the second limiting groove, and the bearing is prevented from shifting when the bearing runs at a high speed.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic front perspective view of the present utility model;

fig. 4 is a schematic side view of the present utility model.

In the figure: 1. an outer ring body; 2. a roller; 3. a front holder; 4. a fixing pin; 5. an inner ring body; 6. a diamond coating; 7. a chromium plating layer; 8. a first limit groove; 9. a rear holder; 10. the second limit groove; 11. a nickel plating layer; 12. and (3) a titanium nitride coating.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a bearing outer lane and have antifriction bearing of this bearing outer lane, including outer lane body 1, roller 2, preceding holder 3 and inner circle body 5, first spacing groove 8 has been seted up to the central point of outer lane body 1 inner circle, the cross-section of first spacing groove 8 presents the arc, the outside of outer lane body 1 and first spacing groove 8 has plated chromium coating 7, the outside of chromium coating 7 has plated diamond coating 6, the both sides of outer lane body 1 outside are provided with the chamfer, the both sides of inner circle body 5 outside are provided with the chamfer equally;

the outer ring body 1 is provided with the chromium coating 7, the chromium coating 7 strengthens the characteristics of wear resistance, fatigue resistance, corrosion resistance, self lubrication and the like of the surface layer, meanwhile, the chromium coating 7 can rapidly generate an extremely thin passivation film on the surface of the outer ring body 1, can resist the corrosion of atmosphere, alkali and certain acids, the hardness of the coating is relatively high, the wear resistance of the surface of the outer ring body 1 can be improved, and meanwhile, the diamond coating 6 is arranged, and the hardness of the diamond coating 6 is high, so that the outer ring body 1 has relatively high hardness, relatively good wear resistance and good corrosion resistance;

the inner ring body 5 is arranged, the titanium nitride coating 12 is arranged on the outer surface of the inner ring body 5, the hardness of the titanium nitride coating 12 is higher, so that the wear resistance of the surface of the inner ring body 5 is higher, the strength of the inner ring body 5 is improved, and the nickel plating layer 11 is also higher in hardness by virtue of the nickel plating layer 11, so that the strength of the roller 2 is improved;

the roller 2 is movably arranged between the first limit groove 8 and the second limit groove 10, a plurality of groups of rollers 2 are arranged between the first limit groove 8 and the second limit groove 10, a front retainer 3 is arranged on one side outside the roller 2, a rear retainer 9 is arranged on the other side outside the roller 2, a fixing pin 4 is inserted between the front retainer 3 and the rear retainer 9, the roller 2 and the rear retainer 9 form a limit structure, and the roller 2, the first limit groove 8 and the second limit groove 10 form a rolling structure;

through being provided with first spacing groove 8 in the central point of outer lane body 1, second spacing groove 10 has been seted up to the outside central point of inner circle body 5, carries out spacingly between first spacing groove 8 and second spacing groove 10 through roller 2 card to avoid the bearing to take place the skew when high-speed operation.

A second limit groove 10 is formed in the center of the outer part of the inner ring body 5, the section of the second limit groove 10 is arc-shaped, a titanium nitride coating 12 is plated on the outer part of the inner ring body 5, and a nickel plating layer 11 is plated on the outer part of the titanium nitride coating 12.

When the bearing is used, the bearing is mounted between machines, then the chromium plating layer 7 is arranged outside the outer ring body 1, the chromium plating layer 7 strengthens the characteristics of wear resistance, fatigue resistance, corrosion resistance, self lubrication and the like of the surface layer, meanwhile, the chromium plating layer 7 can rapidly generate an extremely thin passivation film on the surface of the outer ring body 1, the corrosion of atmosphere, alkali and certain acids can be resisted, the hardness of the coating is relatively high, the wear resistance of the surface of the outer ring body 1 can be improved, and meanwhile, the diamond coating 6 is arranged, the hardness of the diamond coating 6 is high, so that the outer ring body 1 has higher hardness, the wear resistance is relatively good, meanwhile, the outer ring body 1 has good corrosion resistance, the second limiting groove 10 is arranged at the central position outside the inner ring body 5 through the first limiting groove 8, the roller 2 is clamped between the second limiting groove 10, the bearing is prevented from shifting when running at a high speed, the inner ring body 5 is arranged, the titanium nitride coating 12 is arranged on the outer surface of the inner ring body 5, the hardness of the titanium nitride coating 12 is relatively high, the nickel plating layer 5 is also arranged on the surface of the inner ring body 5, and the nickel plating layer is also has higher hardness, and the strength of the nickel plating layer 11 is increased.

Claims (6)

1. The utility model provides a bearing outer lane which characterized in that: including outer lane body (1), roller (2), preceding holder (3) and inner circle body (5), first spacing groove (8) have been seted up to the central point of outer lane body (1) inner circle put, the cross-section of first spacing groove (8) presents the arc, the outside of outer lane body (1) and first spacing groove (8) has plated chrome coating (7), diamond coating (6) have been plated to the outside of chrome coating (7), the outside both sides of outer lane body (1) are provided with the chamfer, the outside both sides of inner circle body (5) are provided with the chamfer equally.

2. A rolling bearing, characterized in that: the bearing outer ring comprises the bearing outer ring according to claim 1, a second limiting groove (10) is formed in the center position of the outer part of the inner ring body (5), and the section of the second limiting groove (10) is arc-shaped.

3. A rolling bearing according to claim 2, characterized in that: the roller (2) is movably arranged between the first limiting groove (8) and the second limiting groove (10), and a plurality of groups of rollers (2) are arranged between the first limiting groove (8) and the second limiting groove (10).

4. A rolling bearing according to claim 3, characterized in that: a front retainer (3) is arranged on one side of the outer part of the roller (2), a rear retainer (9) is arranged on the other side of the outer part of the roller (2), and a fixing pin (4) is inserted between the front retainer (3) and the rear retainer (9).

5. A rolling bearing according to claim 4, characterized in that: the roller (2) and the rear retainer (9) form a limiting structure, and the roller (2), the first limiting groove (8) and the second limiting groove (10) form a rolling structure.

6. A rolling bearing, characterized in that: a bearing outer ring comprising the bearing outer ring according to claim 1, the outer part of the inner ring body (5) being coated with a titanium nitride coating (12), the outer part of the titanium nitride coating (12) being coated with a nickel plating layer (11).