Tapered roller bearing with dustproof self-lubricating structure

Abstract

The utility model relates to the technical field of tapered roller bearings, and discloses a tapered roller bearing with a dustproof self-lubricating structure, which comprises an inner ring, a tapered roller body is arranged outside the inner ring, a retainer is sleeved outside the tapered roller body, an outer ring covers the retainer, an upper dustproof ring cover is arranged at the top end of the outer ring, and a lower dustproof ring cover is arranged at the bottom end of the outer ring. An inner conical groove is formed in the outer ring, a magnetic attraction block is embedded in the bottom of the outer ring, and the bottom of the outer ring is connected with a lower dustproof base. When the bearing dustproof structure is used, the upper dustproof ring cover at the top of the outer ring covers the retainer and the conical rolling body, then the lower dustproof seat carries the limiting clamping ring sleeve to cover the bottom of the outer ring, the magnetic attraction block at the bottom of the outer ring is magnetically attracted to the lower dustproof seat, and the rubber pad at the top end of the lower dustproof seat is in contact with the bottom of the outer ring. Meanwhile, the limiting clamping ring sleeve at the top end of the lower dustproof seat is clamped with the inner wall of the inner ring, so that the dustproof function of the bearing is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to conical roller bearing technical field, concretely is a kind of conical roller bearing of dustproof self-lubricating structure. BACKGROUND

[0002] Conical roller bearing belongs to separated bearing, the inner and outer rings of bearing all have tapered raceway, this kind of bearing is divided into single-row, double-row and four-row conical roller bearing according to the column number of installed roller and different structural type, single-row conical roller bearing can bear radial load and single direction axial load, when bearing bears radial load, axial component will be generated.

[0003] Conical roller bearing is worn when rotating for a long time, and the surface friction increases, so it needs to be lubricated with lubricating grease from time to time, some bearing installation places are not easy to fill grease, and dust enters, greatly shorten the service life of bearing. Therefore, we propose a kind of conical roller bearing of dustproof self-lubricating structure to improve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of conical roller bearing of dustproof self-lubricating structure to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of conical roller bearing of dustproof self-lubricating structure, including inner ring, the outer portion of the inner ring is provided with conical roller body, the outer portion of the conical roller body is equipped with retainer, the outer portion of the retainer is covered with outer ring, the top of the outer ring is provided with upper dust ring cover, the inner portion of the outer ring is provided with inner taper groove, the bottom of the outer ring is embedded with magnetic block, the bottom of the outer ring is connected with lower dust seat, the bottom of the lower dust seat is covered with rubber pad, the top of the lower dust seat is provided with limit snap ring sleeve.

[0006] As a further technical scheme of the utility model, the outer ring is equipped on the outer portion of inner ring, retainer and conical roller body through the inner taper groove in the inner portion, the upper dust ring cover on the top of the outer ring covers the top of retainer and conical roller body on the outer portion of inner ring.

[0007] As a further technical scheme of the utility model, the limit snap ring sleeve on the top of the lower dust seat is connected to the inner wall of inner ring, the magnetic block on the bottom of the lower dust seat and the outer ring is magnetically attracted, the rubber pad on the top of the lower dust seat is contacted with the bottom of the outer ring.

[0008] As a further technical scheme of the utility model, the outer portion of the conical roller body is provided with brass sleeve, the outer portion of the brass sleeve is embedded with lubricating graphite core, the inner portion of the conical roller body is provided with chromium steel inner core.

[0009] As a further technical scheme of the utility model, the conical roller body is installed in a concentric circle shape between the inner wall of the retainer and the outer wall of the inner ring.

[0010] As a further technical scheme of the utility model, the chromium steel inner core is filled in the inside of the brass outer sleeve, and the lubricating graphite cores are inlaid at equal intervals on the outside of the brass outer sleeve.

[0011] As a further technical scheme of the utility model, the inner wall of the inner ring is provided with an inner clamping groove, and the anti-skid rubber ring is clamped in the inner clamping groove.

[0012] As a further technical scheme of the utility model, the inner clamping groove is arranged on the inner wall of the inner ring, and the anti-skid rubber ring is clamped in the inner clamping groove.

[0013] Compared with the prior art, the conical roller bearing with the dustproof and self-lubricating structure has the advantages that the bearing dustproof function is realized, the bearing self-lubricating function is realized, and the installation offset function is realized.

[0014] (1) By arranging the bearing dustproof structure, the utility model has the advantages that when in use, the inner taper groove in the inside of the outer ring covers the outside of the inner ring, the retainer and the conical roller body, the upper dustproof ring cover on the top of the outer ring covers the retainer and the conical roller body, then the lower dustproof seat carrying the limiting snap ring sleeve covers the bottom of the outer ring, the magnetic suction block on the bottom of the outer ring is attracted to the lower dustproof seat, the rubber pad on the top of the lower dustproof seat is in contact with the bottom of the outer ring, and the limiting snap ring sleeve on the top of the lower dustproof seat is clamped to the inner wall of the inner ring, so that the lower dustproof seat covers the inner ring, the retainer and the bottom of the conical roller body in the inside of the outer ring, thereby realizing the bearing dustproof function.

[0015] (2) By arranging the bearing self-lubricating structure, the utility model has the advantages that when in use, the inside of the conical roller body is filled with the chromium steel inner core, the chromium steel inner core has high hardness and good wear resistance, can maintain stable performance in a harsh working environment, the brass outer sleeve is arranged on the outside of the chromium steel inner core, the heat dissipation of the chromium steel inner core is increased, and the multiple groups of lubricating graphite cores inlaid on the outside of the brass outer sleeve increase the self-lubricating property, the water and oil absorption resistance, the small thermal expansion coefficient and other characteristics of the conical roller body, thereby realizing the bearing self-lubricating function.

[0016] (3) By arranging the installation offset structure, the utility model has the advantages that when in use, the anti-skid rubber ring is arranged in the inner clamping groove arranged on the inner wall of the inner ring, and when the bearing is arranged on the outside of the main shaft, the anti-skid rubber ring on the inner wall of the inner ring increases the friction between the inner ring and the main shaft, so that the inner ring carrying the retainer, the conical roller body and the like is not easy to be offset on the main shaft, thereby realizing the installation offset function. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model discloses a front view three-dimensional structure schematic diagram;

[0018] Figure 2 The utility model discloses a side view sectional structure schematic diagram;

[0019] Figure 3 The utility model discloses an inner ring and conical roller body plan view structure schematic diagram;

[0020] Figure 4 The utility model discloses a conical roller body sectional enlarged structure schematic diagram;

[0021] Figure 5 The utility model discloses an outer ring and lower dustproof seat three-dimensional sectional structure schematic diagram;

[0022] Figure 6 The utility model discloses an inner ring sectional enlarged structure schematic diagram.

[0023] Fig. 1, outer ring;2, inner ring;3, retainer;4, conical roller body;5, chromium steel inner core;6, brass outer cover;7, lubricating graphite core;8, inner taper groove;9, magnetic attraction piece;10, upper dustproof ring cover;11, lower dustproof seat;12, limit snap ring cover;13, rubber pad;14, inner clamping groove;15, antiskid rubber ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides an embodiment: a dustproof self -lubricating structure's conical roller bearing, including inner ring 2, the outside of inner ring 2 is provided with conical roller body 4, the outside of conical roller body 4 is provided with retainer 3, the outside of retainer 3 is covered with outer ring 1, and the top of outer ring 1 is provided with upper dustproof ring cover 10, and the inside of outer ring 1 is provided with inner taper groove 8, and the bottom of outer ring 1 is inlaid with magnetic attraction piece 9, and the bottom of outer ring 1 is connected with lower dustproof seat 11, and the bottom of lower dustproof seat 11 is covered with rubber pad 13, and the top of lower dustproof seat 11 is provided with limit snap ring cover 12;

[0026] The outer ring 1 is sleeved on the outside of the inner ring 2, the retainer 3 and the conical roller body 4 through the inner taper groove 8, the upper dustproof ring cover 10 at the top of the outer ring 1 covers the top of the retainer 3 and the conical roller body 4 outside the inner ring 2, the limiting snap ring sleeve 12 at the top of the lower dustproof seat 11 is clamped to the inner wall of the inner ring 2, the lower dustproof seat 11 is magnetically attracted to the magnetic attraction block 9 at the bottom of the outer ring 1, and the rubber pad 13 at the top of the lower dustproof seat 11 is in contact with the bottom of the outer ring 1;

[0027] Specifically, as shown in Figure 1 、 Figure 2 and Figure 5 , by setting the bearing dustproof structure, the inner taper groove 8 inside the outer ring 1 covers the outside of the inner ring 2, the retainer 3 and the conical roller body 4, the upper dustproof ring cover 10 at the top of the outer ring 1 covers the retainer 3 and the conical roller body 4, then the lower dustproof seat 11 carries the limiting snap ring sleeve 12 and covers the bottom of the outer ring 1, the magnetic attraction block 9 at the bottom of the outer ring 1 is magnetically attracted to the lower dustproof seat 11, the rubber pad 13 at the top of the lower dustproof seat 11 is in contact with the bottom of the outer ring 1, and the limiting snap ring sleeve 12 at the top of the lower dustproof seat 11 is clamped to the inner wall of the inner ring 2, the lower dustproof seat 11 covers the inner ring 2, the retainer 3 and the conical roller body 4 at the bottom of the outer ring 1, thereby realizing the bearing dustproof function.

[0028] The outside of the conical roller body 4 is provided with a brass outer sleeve 6, the outside of the brass outer sleeve 6 is embedded with a lubricating graphite core 7, and the inside of the conical roller body 4 is provided with a chromium steel inner core 5;

[0029] The conical roller body 4 is installed in a concentric circle between the inner wall of the retainer 3 and the outer wall of the inner ring 2, the chromium steel inner core 5 is filled in the inside of the brass outer sleeve 6, and the lubricating graphite core 7 is embedded at equal intervals on the outside of the brass outer sleeve 6;

[0030] Specifically, as shown in Figure 2 、 Figure 3 and Figure 4 , by setting the bearing self-lubricating structure, the inside of the conical roller body 4 is filled with the chromium steel inner core 5, the chromium steel inner core 5 has high hardness and good wear resistance, and can maintain stable performance in harsh working environment, the outside of the chromium steel inner core 5 is sleeved with the brass outer sleeve 6, which can increase the heat dissipation of the chromium steel inner core 5, and a plurality of lubricating graphite cores 7 are embedded on the outside of the brass outer sleeve 6 to increase the self-lubricating property, water and oil absorption resistance and small thermal expansion coefficient of the conical roller body 4, thereby realizing the bearing self-lubricating function.

[0031] The inner wall of the inner ring 2 is provided with an inner clamping groove 14, and the inner clamping groove 14 is clamped with an anti-skid rubber ring 15;

[0032] The inner clamping groove 14 is opened in the inner wall of the inner ring 2, and the anti-skid rubber ring 15 is clamped in the inner clamping groove 14;

[0033] Specifically, as shown in Figure 2 and Figure 6 shown, by setting the installation offset structure, the anti-skid rubber ring 15 is installed inside the inner wall of the inner ring 2, and the bearing sleeve is set outside the main shaft, the anti-skid rubber ring 15 of the inner wall of the inner ring 2 can increase the friction between the inner ring 2 and the main shaft, so that the inner ring 2 carrying the retainer 3, the conical roller body 4 and the like is not easy to deviate from the main shaft, thereby realizing the installation offset function.

[0034] Working principle: the utility model discloses in use through the inner taper groove 8 of the inner circle 1 inside the inner circle 2, the outer cover of retainer 3 and conical roller body 4, let the upper dustproof ring cover 10 of outer circle 1 top cover retainer 3 and conical roller body 4, then carry the limit snap ring cover 12 with the bottom of outer circle 1 cover, let the magnetic attraction piece 9 of outer circle 1 bottom and the lower dustproof seat 11 magnetism, let the rubber pad 13 of lower dustproof seat 11 top end contact with the bottom of outer circle 1, simultaneously, the limit snap ring cover 12 of lower dustproof seat 11 top end is connected to the inner wall of inner circle 2, and the rubber pad 13 of lower dustproof seat 11 top end covers the bottom of inner circle 2, retainer 3 and conical roller body 4 in the inner circle 2 of outer circle 1 inside, the inside of conical roller body 4 is filled with chromium steel inner core 5, chromium steel inner core 5 has high hardness, good wear resistance, and can maintain stable performance in harsh working environment, the brass outer sleeve 6 is provided outside chromium steel inner core 5, which can increase the heat dissipation of chromium steel inner core 5, and the plurality of lubricating graphite cores 7 embedded outside the brass outer sleeve 6 can increase the self-lubricating property of the conical roller body 4, the anti-skid rubber ring 15 is installed inside the inner wall of the inner ring 2, and the bearing sleeve is set outside the main shaft, the anti-skid rubber ring 15 of the inner wall of the inner ring 2 can increase the friction between the inner ring 2 and the main shaft.

[0035] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A dust-proof self-lubricating structure of a tapered roller bearing comprising an inner ring (2), characterized in that: The outer part of the inner ring (2) is provided with a conical roller body (4), the outer part of the conical roller body (4) is sleeved with a retainer (3), the outer part of the retainer (3) is covered with an outer ring (1), the top end of the outer ring (1) is provided with an upper dustproof ring cover (10), the inner part of the outer ring (1) is provided with an inner taper groove (8), the bottom of the outer ring (1) is inlaid with a magnetic block (9), the bottom of the outer ring (1) is connected with a lower dustproof seat (11), the bottom of the lower dustproof seat (11) is covered with a rubber pad (13), and the top of the lower dustproof seat (11) is provided with a limiting snap ring sleeve (12).

2. A dust-proof self-lubricating structure of a tapered roller bearing according to claim 1, characterized in that: The outer ring (1) is sleeved on the outer part of the inner ring (2), the retainer (3) and the conical roller body (4) through the inner part of the inner taper groove (8), and the upper dustproof ring cover (10) at the top of the outer ring (1) covers the top of the retainer (3) and the conical roller body (4) outside the inner ring (2).

3. The dustproof self-lubricating structure of the tapered roller bearing according to claim 1, characterized in that: The limiting snap ring sleeve (12) at the top of the lower dustproof seat (11) is clamped to the inner wall of the inner ring (2), the lower dustproof seat (11) is magnetically attracted to the magnetic block (9) at the bottom of the outer ring (1), and the rubber pad (13) at the top end of the lower dustproof seat (11) is in contact with the bottom of the outer ring (1).

4. The dust-proof self-lubricating structure of the tapered roller bearing according to claim 1, characterized in that: The outer part of the conical roller body (4) is provided with a brass sleeve (6), the outer part of the brass sleeve (6) is inlaid with a lubricating graphite core (7), and the inner part of the conical roller body (4) is provided with a chromium steel inner core (5).

5. A dust-proof self-lubricating structure of a tapered roller bearing according to claim 4, characterized in that: The conical roller body (4) is installed in a concentric circle between the inner wall of the retainer (3) and the outer wall of the inner ring (2).

6. A dust-proof self-lubricating structure of a tapered roller bearing according to claim 4, characterized in that: The chromium steel inner core (5) is filled in the inner part of the brass sleeve (6), and the lubricating graphite core (7) is inlaid at equal intervals on the outer part of the brass sleeve (6).

7. The dust-proof self-lubricating structure of the tapered roller bearing according to claim 1, characterized in that: The inner wall of the inner ring (2) is provided with an inner clamping groove (14), and the inner part of the inner clamping groove (14) is clamped with an anti-skid rubber ring (15).

8. The dustproof self-lubricating structure of the tapered roller bearing according to claim 7, characterized in that: The inner clamping groove (14) is arranged in the inner wall of the inner ring (2), and the anti-skid rubber ring (15) is clamped in the inner part of the inner clamping groove (14).

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