CN214617491U

CN214617491U - High-sealing bearing

Info

Publication number: CN214617491U
Application number: CN202120810215.5U
Authority: CN
Inventors: 靳培军
Original assignee: Shandong Anxian Bearing Manufacturing Co ltd
Current assignee: Shandong Anxian Bearing Manufacturing Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-05
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a high sealed bearing relates to the bearing field, takes place the problem of inefficacy that drops to current bearing seal circle easily, now proposes following scheme, and it includes apron, upper cover plate and intermediate ring down, apron, upper cover plate and intermediate ring all are the ring form down, just the cross section of apron and upper cover plate all is the setting of L type down, the intermediate ring is located down between apron and the upper cover plate, just first arc wall has all been seted up on the inner arc limit at the both ends that apron and upper cover plate are close to each other down, be provided with the ball between apron, upper cover plate and the intermediate ring down, threaded hole has been seted up on the top of apron down, just be provided with the screw between upper cover plate and the lower apron, the second arc wall has been seted up to the circumference outer wall of intermediate ring, just the second seal groove has all been seted up to the top and the bottom of intermediate ring. The utility model discloses novel structure, the device is effectual has solved current bearing seal circle and has taken place the problem that drops inefficacy easily.

Description

High-sealing bearing

Technical Field

The utility model relates to a bearing field especially relates to a high sealed bearing.

Background

The bearing is a common part for rotary connection, common small bearings comprise a deep groove ball bearing and a needle roller bearing, a needle roller is arranged in the needle roller bearing, the contact area of the needle roller and the bearing wall is large, so that high pressure can be borne, the allowed rotating speed is low, the deep ball groove bearing is called a ball bearing, balls are arranged in the deep ball groove bearing, the contact area of the balls and the bearing wall is small, and the deep groove bearing is suitable for high-speed operation.

Current ball bearing generally divide into that the metal covering is sealed and the rubber lid is sealed two kinds, the sealing performance of metal covering is relatively poor, can only simply carry out simple protection to inside ball, the relative metal covering of sealing performance of rubber lid is better, but the mounting structure of these two kinds of sealing materials is big with the difference, all from bearing both sides direct extrusion joint, internal pressure is great when the bearing operation, the joint structure of metal covering and rubber lid appears inefficacy easily, lead to the inside lubricating oil of bearing to spill over, one but inside lack lubricated its life and will greatly reduced of bearing, consequently, in order to solve above-mentioned problem, we have proposed a high seal bearing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of high seal bearing has solved current bearing seal circle and has taken place the problem that drops inefficacy easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-sealing bearing comprises a lower cover plate, an upper cover plate and an intermediate ring, wherein the lower cover plate, the upper cover plate and the intermediate ring are all in a circular ring shape, the cross sections of the lower cover plate and the upper cover plate are both arranged in an L shape, the middle ring is positioned between the lower cover plate and the upper cover plate, and the inner arc edges at the two ends of the lower cover plate and the upper cover plate which are close to each other are both provided with a first arc-shaped groove, balls are arranged among the lower cover plate, the upper cover plate and the middle ring, a threaded hole is arranged at the top end of the lower cover plate, a screw is arranged between the upper cover plate and the lower cover plate, a second arc-shaped groove is arranged on the outer circumferential wall of the middle ring, and the top and the bottom of the intermediate ring are both provided with second sealing grooves, the ends of the upper cover plate and the lower cover plate, which are close to the intermediate ring, are both matched with each other and provided with first sealing grooves, and a sealing ring is arranged between the first sealing groove and the second sealing groove.

Preferably, the balls are distributed in an annular array relative to the middle ring, and the balls are sleeved with the first arc-shaped groove and the second arc-shaped groove in a matching mode.

Preferably, the lower cover plate and the upper cover plate are symmetrically distributed about the intermediate ring.

Preferably, the screw hole is the annular array distribution about apron down, just the screw hole runs through in apron down along the axial of apron down, the top of upper cover plate is located and has seted up the screw hole corresponding to screw hole department, just the screw hole runs through in the upper cover plate along the axial of upper cover plate, the screw cup joints with the screw hole, just the bottom and the screw hole threaded connection of screw.

Preferably, the sealing ring is sleeved with the first sealing groove and the second sealing groove.

Preferably, the surface of the sealing ring is sprayed with a Teflon coating, and the sealing ring is in sliding connection with the lower cover plate, the upper cover plate and the middle ring.

The utility model has the advantages that:

1. the device generates pre-pressure on the sealing ring by matching the middle ring through the splicing structure of the upper cover plate and the lower cover plate, improves the sealing performance of the bearing through the pre-pressure, and avoids the falling or failure of the sealing ring through the position retaining effect of the sealing groove on the sealing ring.

2. The device assembles the structure through the stack of lower cover plate, intermediate ring and upper cover plate for the device assembly is simple and convenient more, and the production of the bearing of being convenient for also is convenient for change the sealing washer that wears and teares simultaneously.

In conclusion, the device effectively solves the problem that the existing bearing sealing ring is easy to fall off and lose efficacy.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

Fig. 2 is a sectional view of the assembly structure of the present invention.

Fig. 3 is an exploded view of the assembly structure of the present invention.

Reference numbers in the figures: 1. a lower cover plate; 101. a first arc-shaped slot; 102. a threaded hole; 103. a first seal groove; 2. an intermediate ring; 201. a second arc-shaped slot; 202. a second seal groove; 3. a seal ring; 4. an upper cover plate; 401. a screw hole; 5. a screw; 6. and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a high-sealing bearing comprises a lower cover plate 1, an upper cover plate 4 and an intermediate ring 2, wherein the lower cover plate 1, the upper cover plate 4 and the intermediate ring 2 are all in a ring shape, the cross sections of the lower cover plate 1 and the upper cover plate 4 are all in an L-shaped arrangement, the intermediate ring 2 is positioned between the lower cover plate 1 and the upper cover plate 4, inner arc edges of two ends, close to each other, of the lower cover plate 1 and the upper cover plate 4 are all provided with a first arc-shaped groove 101, balls 6 are arranged between the lower cover plate 1, the upper cover plate 4 and the intermediate ring 2, the top end of the lower cover plate 1 is provided with a threaded hole 102, a screw 5 is arranged between the upper cover plate 4 and the lower cover plate 1, the outer circumferential wall of the intermediate ring 2 is provided with a second arc-shaped groove 201, the top end and the bottom end of the intermediate ring 2 are both provided with a second sealing groove 202, one ends, close to the intermediate ring 2, of the upper cover plate 4 and the lower cover plate 1 are both provided with a first sealing groove 103 in a matching manner, a seal ring 3 is arranged between the first seal groove 103 and the second seal groove 202, the balls 6 are distributed in an annular array around the intermediate ring 2, the balls 6 are in matched sleeve joint with the first arc-shaped groove 101 and the second arc-shaped groove 201, the lower cover plate 1 and the upper cover plate 4 are symmetrically distributed around the intermediate ring 2, the threaded holes 102 are distributed in an annular array around the lower cover plate 1, the threaded holes 102 penetrate through the lower cover plate 1 along the axial direction of the lower cover plate 1, the top end of the upper cover plate 4 is provided with screw holes 401 corresponding to the threaded holes 102, the screw holes 401 penetrate through the upper cover plate 4 along the axial direction of the upper cover plate 4, the screws 5 are in sleeve joint with the screw holes 401, the bottom end of each screw 5 is in threaded connection with the threaded hole 102, the seal ring 3 is in sleeve joint with the first seal groove 103 and the second seal groove 202, and the surface of the seal ring 3 is sprayed with a teflon coating, and the sealing ring 3 is in sliding connection with the lower cover plate 1, the upper cover plate 4 and the middle ring 2.

The working principle is as follows: the assembly mode of the device is that a lower cover plate 1 is flatly placed, a sealing ring 3 is placed in a first sealing groove 103, an intermediate ring 2 is placed in the middle of the lower cover plate 1, a second sealing groove 202 on the intermediate ring 2 is in butt joint with the sealing ring 3, balls 6 are uniformly placed between a first arc-shaped groove 101 and a second arc-shaped groove 201 along the outer wall of the intermediate ring 2, a group of sealing rings 3 are placed in a second sealing groove 202 at the top end of the intermediate ring 2, an upper cover plate 4 is covered at the top end of the intermediate ring 2, the first sealing groove 103 of the upper cover plate 4 is in butt joint with the sealing ring 3, the upper cover plate 4 is rotated to enable a screw hole 401 to be aligned with a threaded hole 102, a screw 5 is screwed into the threaded hole 102 through the screw hole 401 and is screwed tightly, the intermediate ring 2 and the balls 6 are sleeved by the upper cover plate 4 and the lower cover plate 1, and the assembly of the whole bearing is completed;

after the device is assembled, the top end face and the bottom end face of the middle ring 2 are not in contact with the upper cover plate 4 and the lower cover plate 1, a pre-designed gap is reserved, the middle ring 2 can smoothly rotate, meanwhile, after the upper cover plate 4 and the lower cover plate 1 are mutually locked together through the screws 5, the middle ring 2 is matched to apply certain extrusion force to the two groups of sealing rings 3, the sealing effect of the sealing rings 3 is further improved, the size of the extrusion force is determined according to an actual test result, and the sealing rings 3 greatly enhance the sealing performance of the bearing under the action of proper extrusion force and the position maintenance of the sealing grooves.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-sealing bearing comprises a lower cover plate (1), an upper cover plate (4) and an intermediate ring (2), and is characterized in that the lower cover plate (1), the upper cover plate (4) and the intermediate ring (2) are all in a circular ring shape, the cross sections of the lower cover plate (1) and the upper cover plate (4) are all arranged in an L shape, the intermediate ring (2) is positioned between the lower cover plate (1) and the upper cover plate (4), first arc-shaped grooves (101) are arranged on inner arc edges of two ends, close to each other, of the lower cover plate (1) and the upper cover plate (4), balls (6) are arranged between the lower cover plate (1), the upper cover plate (4) and the intermediate ring (2), a threaded hole (102) is formed in the top end of the lower cover plate (1), screws (5) are arranged between the upper cover plate (4) and the lower cover plate (1), and a second arc-shaped groove (201) is formed in the outer wall of the circumference of the intermediate ring (2), and the top and the bottom of the middle ring (2) are both provided with a second sealing groove (202), one end of the upper cover plate (4) and one end of the lower cover plate (1) which are close to the middle ring (2) are both matched with each other and provided with a first sealing groove (103), and a sealing ring (3) is arranged between the first sealing groove (103) and the second sealing groove (202).

2. A high seal bearing according to claim 1, wherein the balls (6) are distributed in an annular array with respect to the intermediate ring (2), and the balls (6) are in matching engagement with the first arc-shaped groove (101) and the second arc-shaped groove (201).

3. A high seal bearing according to claim 1, wherein the lower cover plate (1) and the upper cover plate (4) are symmetrically arranged with respect to the intermediate ring (2).

4. The high-sealing bearing as claimed in claim 1, wherein the threaded holes (102) are distributed in an annular array with respect to the lower cover plate (1), the threaded holes (102) penetrate through the lower cover plate (1) along the axial direction of the lower cover plate (1), screw holes (401) are formed in the top end of the upper cover plate (4) at positions corresponding to the threaded holes (102), the screw holes (401) penetrate through the upper cover plate (4) along the axial direction of the upper cover plate (4), the screws (5) are sleeved with the screw holes (401), and the bottom ends of the screws (5) are in threaded connection with the threaded holes (102).

5. The high-sealing bearing according to claim 1, wherein the sealing ring (3) is sleeved with the first sealing groove (103) and the second sealing groove (202).

6. The high-sealing bearing according to claim 1, wherein the surface of the sealing ring (3) is coated with Teflon coating, and the sealing ring (3) is in sliding connection with the lower cover plate (1), the upper cover plate (4) and the intermediate ring (2).