CN213017267U

CN213017267U - Bearing convenient for oil injection

Info

Publication number: CN213017267U
Application number: CN202022034871.9U
Authority: CN
Inventors: 陈秀艳; 朱建红
Original assignee: Fuzhou Changle Dongfeng Bearing Co ltd
Current assignee: Fuzhou Changle Dongfeng Bearing Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-04-20
Anticipated expiration: 2030-09-16

Abstract

The application relates to a bearing convenient for oil injection, which relates to the technical field of bearings and solves the problem of inconvenient oil injection, it includes the inner circle, the outer lane, install in the rolling element of holder, inner circle and the coaxial setting of outer lane, the rolling element sets up between inner circle and outer lane, the joint is provided with the shield between inner circle and the outer lane, the inside spout of having seted up of shield, the spread groove has been seted up in spout one side intercommunication, the spread groove is kept away from spout one side and is seted up towards the inlet port that the rolling element extends, the spread groove is close to spout one side and is seted up towards the oil filler point of keeping away from rolling element one side extension, spout sliding connection has the slider that can seal the oil filler point, the spout is kept away from rolling element one side intercommunication and is offered and be used for stirring the gliding groove of stirring. This application has the effect that makes things convenient for grease to pour into.

Description

Bearing convenient for oil injection

Technical Field

The application relates to the technical field of bearings, in particular to a bearing convenient for oil injection.

Background

The bearing is an important part in the modern mechanical equipment and comprises an inner ring, an outer ring, a retainer and rolling bodies. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. To prevent dust from entering the bearing during use, a dust cap is typically added.

At present, chinese utility model patent with publication number CN206904081U discloses a dust-proof bearing, which comprises an outer ring, an inner ring, rolling elements between the outer ring and the inner ring, and a retainer. The outer lane outside is equipped with the dust cover, and the dust cover includes to be formed by first dust cover and the butt joint combination of second dust cover, and first, second dust cover is the ring structure, and the outer loop of first, second dust cover equals with the external diameter of outer lane, and the inner ring internal diameter of first, second dust cover is greater than the internal diameter of inner circle, and the outer loop outer fringe of first, second dust cover is equipped with the cross-section that sets up mutual block relatively and is the annular connecting plate of circle.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the bearing needs to be filled with grease to further reduce the friction coefficient when in use, but due to the existence of the dustproof cover, the dustproof cover needs to be detached when oil is filled every time, and the bearing is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to facilitate grease injection, the application provides a bearing convenient for oil injection.

The application provides a bearing of convenient oiling adopts following technical scheme:

the utility model provides a bearing of convenient oiling, includes inner circle, outer lane, installs in the rolling element of holder, inner circle and the coaxial setting of outer lane, the rolling element sets up between inner circle and outer lane, the joint is provided with the shield between inner circle and the outer lane, the inside spout that has seted up of shield, spout one side intercommunication has seted up the spread groove, the spread groove is kept away from spout one side and is seted up the inlet port that extends towards the rolling element, the spread groove is close to spout one side and sets up the oil filler point of keeping away from rolling element one side extension, spout sliding connection has the slider that can seal the oil filler point, the spout is kept away from rolling element one side intercommunication and is offered and be used for stirring the gliding groove of stirring of slider, the slider is provided with the closure that is used for sealing.

Through adopting the above-mentioned technical scheme, when needing the oiling, the slider that slides earlier makes the oil filler point open, begin the oiling from the oil filler point afterwards, the grease receives blockking of slider and can't flow in the spout during the oiling, consequently, the grease gets into between inner circle and the outer lane from the oil filler point through the spread groove, play the lubrication action when rolling to the rolling element on the holder, towards spread groove direction slip slider after the oiling is accomplished, until the oil filler point is by the slider shutoff, the spread groove receives the shutoff of shutoff piece this moment, hinder the dust entering, the slider passes through mounting and shield and realizes fixing, it appears gliding probably in the bearing use to reduce the shield, whole simple, it is convenient, need not to open the shield when the grease is injected, make things convenient for going on.

Optionally, a clamping groove is formed in the inner peripheral side of the outer ring, a clamping ring is arranged on the inner peripheral side of the dustproof cover, and the clamping ring is clamped in the clamping groove.

Through adopting above-mentioned technical scheme, snap ring joint in the draw-in groove during the use realizes the fixed connection of shield.

Optionally, the vertical section of the snap ring is of a semicircular structure, and the arc-shaped outer convex side faces to the side far away from the dust cover.

Through adopting above-mentioned technical scheme, the vertical cross-section of snap ring is semi-circular structure, is favorable to reducing the resistance that the snap ring card received before going into the draw-in groove.

Optionally, the closure is the block rubber, the slider is provided with the connecting block near spread groove one side, the block rubber is fixed in the connecting block and keeps away from slider one side, the spread groove has been offered near spout part intercommunication, the diameter of closed groove is greater than the diameter of spread groove, the block rubber joint is in closed groove.

Through adopting above-mentioned technical scheme, the block rubber joint is in the closed groove during the use, is favorable to further shutoff spread groove, reduces the possibility that the dust got into.

Optionally, the rubber block is of a spherical structure.

Through adopting above-mentioned technical scheme, the rubber block is the spheroidicity, reduces the area of contact when the rubber block passes through the spread groove, is favorable to reducing the frictional force that the rubber block received.

Optionally, the mounting is a fixture block, an installation block is fixed to one side, away from the rolling element, of the slider, the fixture block is fixed to one side, close to the oil injection hole, of the installation block, a fixing groove is formed in the wall of the oil injection hole, and the fixture block is connected to the fixing groove in a clamped mode in an interference fit mode.

Through adopting above-mentioned technical scheme, the fixture block joint is fixed in the fixed slot during the use for realize the fixed connection of slider, hinder the slider to appear gliding possibility at the bearing during operation.

Optionally, the dust cover comprises a first cover body and a second cover body, and the first cover body and the second cover body are clamped and fixed.

Through adopting above-mentioned technical scheme, the shield includes first lid and second lid, makes things convenient for production, the installation of shield, reduces the installation degree of difficulty of slider simultaneously.

Optionally, two sets of seal grooves are formed in the first cover body, the chute is formed between the two sets of seal grooves, seal rings are mounted on the seal grooves, and the seal rings are abutted to the second cover body.

Through adopting above-mentioned technical scheme, seal the gap between first lid and the second lid through the sealing washer during the use, the grease is from the possibility of the gap overflow between first lid and the second lid when reducing the oiling.

In summary, the present application includes at least one of the following benefits:

1. during oil injection, the sliding slide block opens the oil injection hole, then oil injection is carried out through the oil injection hole, the sliding slide block blocks the oil injection hole after the oil injection is finished, and the sliding block is fixed through the fixing piece to finish the oil injection work;

2. the dustproof cover comprises a first cover body and a second cover body which are connected in a clamping mode, the production difficulty of the dustproof cover is favorably reduced, and the slider is convenient to install.

Drawings

FIG. 1 is a schematic internal cross-sectional view of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the dust cap of the embodiment of the present application after installation;

FIG. 3 is a schematic view of an interior cross-section of a dust cap according to an embodiment of the present application;

fig. 4 is a schematic cross-sectional view illustrating the engagement between the protrusion block and the fixing groove according to the embodiment of the present application.

Reference numerals: 1. an inner ring; 2. an outer ring; 3. a rolling body; 4. a dust cover; 401. a first cover body; 402. a second cover body; 5. a chute; 6. connecting grooves; 7. an oil inlet hole; 8. an oil filler hole; 9. a slider; 10. a poking groove; 11. a card slot; 12. a snap ring; 13. a rubber block; 14. connecting blocks; 15. closing the groove; 16. a clamping block; 17. fixing grooves; 18. mounting blocks; 19. a sealing groove; 20. a seal ring; 21. a baffle ring; 22. and (6) blocking the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Referring to fig. 1, a bearing facilitating oil injection disclosed in an embodiment of the present application includes an inner ring 1, an outer ring 2, and rolling elements 3 mounted on a cage. The outer ring 2 is sleeved on the outer peripheral side of the inner ring 1, the diameter of the outer ring 2 is larger than that of the inner ring 1, and the rolling body 3 is located between the inner ring 1 and the outer ring 2.

Referring to fig. 1, a dust cover 4 is disposed between the inner ring 1 and the outer ring 2 to block dust from entering. The dustproof cover 4 is of an annular structure, a clamping ring 12 is fixedly connected to the outer peripheral side of the dustproof cover 4, the vertical section of the clamping ring 12 is of a semicircular structure, and the arc-shaped protruding side of the clamping ring 12 faces the direction away from the dustproof cover 4. The inner peripheral side of the outer ring 2 is provided with a clamping groove 11 close to the edge part, and a clamping ring 12 is clamped in the clamping groove 11 during installation and is used for fixedly connecting the dustproof cover 4. An annular blocking groove 22 is separately arranged on the outer periphery side of the inner ring 1 close to the edge part, and a blocking ring 21 is fixedly connected to the inner periphery side of the dustproof cover 4 far away from the rolling body 3. In use, the baffle ring 21 is slidably connected with the baffle groove 22 and is used for preventing dust from entering from a gap between the dust cover 4 and the inner ring 1.

Referring to fig. 2 and 3, a sliding groove 5 is formed in the dust cover 4, the sliding groove 5 extends along an arc-shaped track, and the arc-shaped track and the dust cover 4 have the same axis. A connecting groove 6 is formed in one side of the sliding groove 5 in a communicated mode, and the connecting groove 6 extends along a circular arc track and is equal to the sliding groove 5 in radius.

Referring to fig. 1 and 3, an oil inlet hole 7 is opened on one side of the connecting groove 6 away from the sliding groove 5, and the oil inlet hole 7 extends towards the rolling element 3.

Referring to fig. 1 and 2, an oil filling hole 8 is formed in a part, away from the oil inlet hole 7, of the connecting groove 6, and the oil filling hole 8 extends in a direction away from the rolling element 3.

Referring to fig. 1 and 2, during oil injection, grease enters the connecting groove 6 from the oil injection hole 8, passes through the connecting groove 6 and then enters between the inner ring 1 and the outer ring 2 from the oil inlet hole 7.

Referring to fig. 2 and 3, the sliding groove 5 is slidably connected with a sliding block 9, and the sliding block 9 is in an arc block structure. One side of the sliding groove 5, which is close to the outside, is communicated with a toggle groove 10, and the width of the toggle groove 10 is larger than that of the sliding groove 5. One side of the sliding block 9 close to the outside is fixedly connected with a mounting block 18, and the mounting block 18 is connected with the toggle groove 10 in a sliding mode. When in use, the mounting block 18 is used for shifting the sliding block 9, so that the sliding block 9 slides in the connecting groove 6 and the sliding groove 5. When oil is not injected, part of the sliding block 9 slides into the connecting groove 6 and is used for blocking the oil injection hole 8 and preventing dust from entering, and when oil is injected, the sliding block 9 slides towards the sliding groove 5 until the oil injection hole 8 is opened.

Referring to fig. 2 and 3, a blocking piece is disposed on one side of the sliding block 9 close to the connecting groove 6 for further sealing the connecting groove 6 and preventing dust from entering through a gap between the sliding block 9 and the connecting groove 6. The plugging piece is a rubber block 13, and the rubber block 13 is of a spherical structure. The side of the sliding block 9 close to the connecting groove 6 is fixedly connected with a connecting block 14, and the rubber block 13 is fixedly connected to the side of the connecting block 14 far away from the sliding block 9. The side wall of the connecting groove 6 is communicated with a closed groove 15, and the closed groove 15 is positioned between the oil filling hole 8 and the oil inlet hole 7. The diameter of the closed groove 15 is larger than that of the connecting groove 6, and the rubber block 13 is clamped in the closed groove 15 during use, so that the connecting groove 6 is blocked.

Referring to fig. 3 and 4, a fixing member is disposed on the slider 9, and the fixing member is a latch 16. The fixture block 16 is fixedly connected to one side, close to the connecting groove 6, of the mounting block 18, the fixing groove 17 is formed in the groove wall of one side, far away from the sliding groove 5, of the oil injection hole 8, and the fixture block 16 is clamped in the fixing groove 17 in an interference fit mode during use, so that the sliding block 9 is fixed.

Referring to fig. 1 and 3, the dust cap 4 includes a first cap 401 and a second cap 402, wherein a plurality of fixing blocks are fixed on one side of the first cap 401 facing the second cap 402 at regular intervals, and a plurality of clamping grooves are formed on one side of the second cap 402 facing the first cap 401 at regular intervals. During the use fixed block joint in the joint groove, realize the fixed connection of first lid 401 and second lid 402, be favorable to reducing the installation degree of difficulty of slider 9 and reducing seting up of spout 5, spread groove 6 etc. and have the degree of difficulty.

Referring to fig. 1 and 3, two sets of sealing grooves 19 are formed in one side of the first cover 401 facing the second cover 402, the sliding groove 5 and the connecting groove 6 are located between the two sets of sealing grooves 19, and the sealing ring 20 is installed in the sealing groove 19. When the first cover 401 and the second cover 402 are fastened and fixed, one side of the seal ring 20 away from the seal groove 19 abuts against the second cover 402 to seal the first cover 401 and the second cover 402, so that the possibility of grease overflowing from a gap between the first cover 401 and the second cover 402 during oil injection is reduced.

The implementation principle of the embodiment is as follows:

during oil injection, the sliding block 9 slides towards the sliding direction through the mounting block 18 until the oil injection hole 8 is opened, then oil injection is started from the oil injection hole 8, and the oil flowing towards the sliding groove 5 direction during oil injection is blocked by the rubber block 13 and cannot enter the sliding groove 5, so that the injected oil enters the space between the inner ring 1 and the outer ring 2 from the oil inlet 7 after passing through the connecting groove 6 and plays a role in lubricating the rolling body 3 during rolling. And when the oil injection is completed, the sliding block 9 is shifted towards the connecting groove 6 until the clamping block 16 is clamped in the fixing groove 17, the sliding block 9 blocks the oil injection hole 8 at the moment, and the rubber block 13 is clamped in the closed groove 15. Whole process is simple, need not during the oiling to dismantle shield 4, makes things convenient for going on of oiling work.

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. The utility model provides a bearing of convenient oiling, includes inner circle (1), outer lane (2), installs in rolling element (3) of holder, its characterized in that: the inner ring (1) and the outer ring (2) are coaxially arranged, the rolling body (3) is arranged between the inner ring (1) and the outer ring (2), a dustproof cover (4) is clamped between the inner ring (1) and the outer ring (2), a sliding groove (5) is formed in the dustproof cover (4), a connecting groove (6) is formed in one side of the sliding groove (5) in a communicated manner, an oil inlet hole (7) extending towards the rolling body (3) is formed in one side, away from the sliding groove (5), of the connecting groove (6), an oil filling hole (8) extending towards one side, away from the rolling body (3) is formed in one side, close to the sliding groove (5), of the connecting groove (6), a sliding block (9) capable of sealing the oil filling hole (8) is connected in the sliding groove (5), and a sliding shifting groove (10) used for shifting the sliding block (9), the sliding block (9) is provided with a closing part for closing the connecting groove (6), a fixing part is arranged on the sliding block (9), and the sliding block (9) is fixedly connected with the dust cover (4) through the fixing part.

2. The bearing of claim 1, wherein the bearing is adapted to facilitate oil injection by: the utility model discloses a dustproof cover, including outer lane (2), inner periphery side is opened and is equipped with draw-in groove (11) in outer lane (2), inner periphery side is provided with snap ring (12) in shield (4), snap ring (12) joint in draw-in groove (11).

3. The bearing of claim 2, wherein: the vertical section of the snap ring (12) is of a semicircular structure, and the arc-shaped outer convex side faces to the side far away from the dust cover (4).

4. The bearing of claim 1, wherein the bearing is adapted to facilitate oil injection by: the sealing member is rubber block (13), slider (9) are close to spread groove (6) one side and are provided with connecting block (14), rubber block (13) are fixed in connecting block (14) and keep away from slider (9) one side, spread groove (6) are close to spout (5) part intercommunication and have seted up closed groove (15), the diameter of closed groove (15) is greater than the diameter of spread groove (6), rubber block (13) joint in closed groove (15).

5. The bearing of claim 4, wherein the bearing is adapted to facilitate oil injection by: the rubber block (13) is of a spherical structure.

6. The bearing of claim 1, wherein the bearing is adapted to facilitate oil injection by: the mounting is fixture block (16), rolling element (3) one side is kept away from in slider (9) is fixed with installation piece (18), fixture block (16) are fixed in installation piece (18) and are close to oil filler point (8) one side, fixed slot (17) have been seted up to oil filler point (8) pore wall, fixture block (16) joint in fixed slot (17) and interference fit.

7. The bearing of claim 1, wherein the bearing is adapted to facilitate oil injection by: the dustproof cover (4) comprises a first cover body (401) and a second cover body (402), and the first cover body (401) and the second cover body (402) are clamped and fixed.

8. The bearing of claim 7, wherein: two sets of seal grooves (19) have been seted up to first lid (401), spout (5) are between two sets of seal grooves (19), sealing washer (20) are installed to seal groove (19), sealing washer (20) butt in second lid (402).