CN214661552U

CN214661552U - Dustproof bearing

Info

Publication number: CN214661552U
Application number: CN202120790003.5U
Authority: CN
Inventors: 唐时霖; 周玉刚
Original assignee: Yuyao Porter Bearing Co ltd
Current assignee: Yuyao Porter Bearing Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-09
Anticipated expiration: 2031-04-16

Abstract

The application relates to the technical field of bearings, in particular to a dustproof bearing, which comprises a bearing outer ring, a bearing inner ring, a rotating body arranged between the bearing outer ring and the bearing inner ring and a dustproof cover arranged between the bearing outer ring and the bearing inner ring; the shield is cyclic annular, and the shield is equipped with two, and the shield sets up respectively at the both ends of bearing inner race and bearing outer lane, and the connection can be dismantled on the terminal surface of bearing outer lane in the outer lane of shield, and the inner circle sliding connection of shield is on the terminal surface of bearing inner circle. This application has after this application bearing work a period, and the staff can take out this application bearing, will seal the lid and pull down, changes the inside rotten lubricating grease of this application bearing, reduces the influence of rotten lubricating grease to the bearing to prolong the life's of this application bearing effect.

Description

Dustproof bearing

Technical Field

The application relates to the technical field of bearings, in particular to a dustproof bearing.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. The dustproof bearing is characterized in that a dustproof cover is arranged between an inner ring and an outer ring of the bearing, the inner ring and the outer ring of the bearing are sealed, the bearing has certain dustproof capacity, and the existing dustproof bearing is divided into a steel seal bearing and a rubber seal bearing.

With respect to the related art among the above, the inventors consider that there is a defect: the dust cover in the steel seal bearing among the correlation technique is iron, just can not dismantle after the dust cover installation, thereby otherwise the dust cover can take place to warp and lead to the leakproofness variation of steel seal bearing, therefore steel seal bearing has just been annotated certain lubricating grease when the equipment, after dust bearing long-time work, the inside lubricating grease of bearing takes place to deteriorate, the staff can not in time change lubricating grease, the inner wall of steel seal bearing can be damaged to rotten lubricating grease, thereby lead to the life of steel seal bearing to be shorter.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the staff to change the lubricating grease in the dust bearing, the application provides a dust bearing.

The application provides a dustproof bearing adopts following technical scheme:

a dustproof bearing comprises a bearing outer ring, a bearing inner ring, a rotating body arranged between the bearing outer ring and the bearing inner ring and a dustproof cover arranged between the bearing outer ring and the bearing inner ring; the dustproof covers are annular, the dustproof covers are two, the dustproof covers are arranged at two ends of the bearing outer ring and the bearing inner ring respectively, the outer ring of the dustproof covers can be detachably connected to the end face of the bearing outer ring, and the inner ring of the dustproof covers is connected to the end face of the bearing inner ring in a sliding mode.

Through adopting above-mentioned technical scheme, work as this application bearing, the shield separates space between with bearing inner race and the inner circle and external space, reduces dust and other debris in the external environment, thereby reduce the dust accumulation in this application bearing, after this application bearing work a period, the staff can take out this application bearing, pull down sealed lid, change the inside rotten lubricating grease of this application bearing, reduce the influence of rotten lubricating grease to the bearing, thereby prolong the life of this application bearing.

Optionally, the end face of the bearing outer ring is provided with a first preformed groove, the end face of the bearing inner ring is provided with a second preformed groove, the dustproof cover is installed inside the first preformed groove and the second preformed groove, and the upper surface of the dustproof cover is flush with the end faces of the bearing outer ring and the bearing inner ring.

Through adopting above-mentioned technical scheme, the shield is installed in the inside of first preformed groove and second preformed groove, hides the shield and can make the terminal surface of this application bearing level and smooth in the inside of first preformed groove and second preformed groove to make things convenient for the staff to install this application bearing, save the installation space of this application bearing.

Optionally, the bottom of the first preformed groove is provided with a first mounting hole, the outer edge of the dust cover is provided with a second mounting hole, the second mounting hole is the same as the first mounting hole in number and corresponds to the first mounting hole in position, the inner thread of the second mounting hole is connected with a fixing bolt, and the fixing bolt is in threaded fit with the first mounting hole.

Through adopting above-mentioned technical scheme, fix the outer fringe of shield on the bearing outer lane through fixing bolt to install the shield on this application bearing.

Optionally, a hidden groove is formed in the dustproof cover, the hidden groove and the second mounting hole are coaxially arranged, and a bolt head of the fixing bolt is hidden inside the hidden groove.

Through adopting above-mentioned technical scheme, install the bolt head in the inside of hiding the groove, avoid the bolt head outstanding, make the terminal surface of this application bearing avoid outstanding, further reduce the installation space of this application device.

Optionally, the bottom of second preformed groove is equipped with the mounting groove, be equipped with the mounting bar on the lower surface of shield, mounting bar and mounting groove are the ring form, mounting bar and mounting groove adaptation, mounting bar and mounting groove interference fit.

Through adopting above-mentioned technical scheme, through the cooperation of mounting bar and mounting groove, make shield and bearing inner race sliding fit to make this application bearing can normally work.

Optionally, the side surface of the mounting bar is provided with a drag reduction bar, and the length extension direction of the drag reduction bar is parallel to the circumferential direction of the mounting groove.

Through adopting above-mentioned technical scheme, the area of contact of shield and bearing inner race can be reduced to the drag between shield and the bearing inner race is reduced to the drag that reduces the shield and to this application bearing work's influence.

Optionally, opposite rolling grooves are formed in opposite side faces of the bearing outer ring and the bearing inner ring, the rotating body comprises balls arranged in the rolling grooves, and the balls are matched with the rolling grooves.

Optionally, the rotor includes a cage, and the balls are disposed inside the cage.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the bearing works, the dust cover separates the space between the outer ring and the inner ring of the bearing from the external space, so that dust and other impurities in the external environment are reduced, and the dust accumulation in the bearing is reduced;

2. the dustproof covers are arranged in the first preformed groove and the second preformed groove, and the end faces of the bearing can be smooth by hiding the dustproof covers in the first preformed groove and the second preformed groove, so that workers can conveniently install the bearing, and the installation space of the bearing is saved;

3. the resistance reducing strip can reduce the contact area between the dust cover and the bearing inner ring, so that the resistance between the dust cover and the bearing inner ring is reduced, and the influence of the dust cover on the working of the bearing is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram of an internal structure of an embodiment of the present application.

Description of reference numerals: 1. a bearing outer race; 11. a first preformed groove; 111. a first mounting hole; 2. a bearing inner race; 21. a second preformed groove; 211. mounting grooves; 3. a rotating body; 31. a ball bearing; 32. a holder; 4. a dust cover; 41. a second mounting hole; 42. fixing the bolt; 43. hiding the groove; 44. mounting a bar; 441. a drag reducing strip; 5. and (4) rolling the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a dustproof bearing. Referring to fig. 1, a dust-proof bearing includes a bearing outer race 1, a bearing inner race 2, a rotor 3 installed between the bearing outer race 1 and the bearing inner race 2, and dust-proof covers 4 installed on both end surfaces of the bearing outer race 1 and the bearing inner race 2. After this application embodiment bearing work a period, the staff can pull down shield 4 from bearing inner race 1 and bearing inner race 2, changes the inside rotten lubricating grease of bearing in this application embodiment to protect this application embodiment bearing, prolong the life of this application embodiment bearing.

Referring to fig. 1 and 2, rolling grooves 5 with opposite openings are formed on opposite side surfaces of the bearing outer ring 1 and the bearing inner ring 2, and the rolling bodies 3 are installed inside the rolling grooves 5. The rotating body 3 includes balls 31 caught inside the rolling grooves 5 and a cage 32 for keeping a stable pitch between the balls 31. The balls 31 and the retainer 32 are conventional, and are not described in detail in the embodiment of the present application.

Referring to fig. 1 and 2, a first preformed groove 11 is formed in the bearing outer ring 1, a second preformed groove 21 is formed in the bearing inner ring 2, the first preformed groove 11 is located on one side, close to the bearing inner ring 2, of the bearing outer ring 1, and the second preformed groove 21 is located on one side, close to the bearing outer ring 1, of the bearing inner ring 2. The dust cap 4 is installed inside the first and second

preliminary grooves

11 and 21. The thickness of shield 4 equals the degree of depth of first reservation groove 11 and second reservation groove 21, and when shield 4 installed in the inside of first reservation groove 11 and second reservation groove 21, the terminal surface parallel and level of this application embodiment bearing.

A plurality of first mounting holes 111 are formed in the bottom of the first preformed groove 11, a plurality of second mounting holes 41 are formed in the outer edge of the dust cover 4, the first mounting holes 111 and the second mounting holes 41 are the same in number and correspond in position. The upper surface of the dust cover 4 is provided with a hidden groove 43, the hidden groove 43 is coaxial with the second mounting hole 41, the diameter of the hidden groove 43 is larger than that of the second mounting hole 41, and the hidden groove 43 is communicated with the second mounting hole 41. A fixing bolt 42 is threadedly mounted inside the second mounting hole 41, and the fixing bolt 42 passes through the second mounting hole 41 and is threadedly engaged with the first mounting hole 111. The bolt head of the fixing bolt 42 is positioned inside the hidden groove 43, and the thickness of the bolt head of the fixing bolt 42 is not greater than the depth of the hidden groove 43. Through the cooperation of first reservation groove 11, second reservation wipe and hide groove 43, can make the terminal surface of this application embodiment bearing keep leveling to reduce the installation space of this application embodiment bearing.

Referring to fig. 2, an annular mounting groove 211 is formed in the inner wall of the bottom of the second preformed groove 21, a mounting bar 44 is arranged on the lower surface of the dust cover 4, and a drag reduction bar 441 is arranged on the side surface of the mounting bar 44. The drag reduction strip 441, the mounting strip 44 and the dust cover 4 are all integrally formed. The mounting strip 44 is annular, the mounting strip 44 can be matched with the mounting groove 211, the mounting strip 44 and the mounting groove 211 are coaxially arranged with the bearing outer ring 1 and the bearing inner ring 2, the mounting strip 44 is in clearance fit with the mounting groove 211, and the side surface of the drag reduction strip 441 abuts against the inner wall of the mounting groove 211. The mounting bar 44 and the mounting groove 211 can restrict the position of the dust cover 4, and the drag reduction bar 441 can reduce the contact area between the mounting bar 44 and the mounting groove 211, thereby reducing the resistance before the two.

The implementation principle of the dustproof bearing in the embodiment of the application is as follows: after this application embodiment bearing worked a period, the staff dismantled fixing bolt 42, took out shield 4, later change bearing inner race 1 and bearing inner race 2 between rotten lubricating grease can, reduce the influence of establishment lubricating grease to this application embodiment bearing.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A kind of dust-proof bearing, characterized by: the anti-dust bearing comprises a bearing outer ring (1), a bearing inner ring (2), a rotating body (3) arranged between the bearing outer ring (1) and the bearing inner ring (2), and a dust cover (4) arranged between the bearing outer ring (1) and the bearing inner ring (2); the dustproof cover (4) is annular, the dustproof cover (4) is provided with two, the dustproof cover (4) is respectively arranged at two ends of the bearing outer ring (1) and the bearing inner ring (2), the outer ring of the dustproof cover (4) can be detachably connected to the end face of the bearing outer ring (1), and the inner ring of the dustproof cover (4) is slidably connected to the end face of the bearing inner ring (2).

2. A dust bearing according to claim 1, wherein: the terminal surface of bearing inner race (1) is equipped with first preformed groove (11), be equipped with second preformed groove (21) on the terminal surface of bearing inner race (2), the inside at first preformed groove (11) and second preformed groove (21) is installed in shield (4), the upper surface of shield (4) flushes with the terminal surface of bearing inner race (2) and bearing outer race (1).

3. A dust bearing according to claim 2, wherein: the bottom of first preformed groove (11) is equipped with first mounting hole (111), the outside edge of shield (4) is equipped with second mounting hole (41), second mounting hole (41) are the same with the quantity of first mounting hole (111), the position corresponds, the inside threaded connection of second mounting hole (41) has fixing bolt (42), fixing bolt (42) and first mounting hole (111) screw-thread fit.

4. A dust bearing according to claim 3, wherein: be equipped with on shield (4) and hide groove (43), hide groove (43) and second mounting hole (41) coaxial arrangement, the bolt head of fixing bolt (42) is hidden in the inside of hiding groove (43).

5. A dust bearing according to claim 2, wherein: the bottom of second preformed groove (21) is equipped with mounting groove (211), be equipped with mounting bar (44) on the lower surface of shield (4), mounting bar (44) and mounting groove (211) are the ring form, mounting bar (44) and mounting groove (211) adaptation, mounting bar (44) and mounting groove (211) interference fit.

6. The dust bearing of claim 5, wherein: the side surface of the mounting strip (44) is provided with a drag reduction strip (441), and the length extension direction of the drag reduction strip (441) is parallel to the circumferential direction of the mounting groove (211).

7. A dust bearing according to claim 1, wherein: establish relative rolling groove (5) on bearing inner race (2) relative side in bearing outer lane (1), rotor (3) are including setting up ball (31) in rolling groove (5) inside, ball (31) and rolling groove (5) adaptation.

8. A dust bearing according to claim 7, wherein: the rotating body (3) comprises a retainer (32), and the balls (31) are arranged inside the retainer (32).