CN217381287U - Dust protected deep groove ball bearing - Google Patents

Abstract

The utility model provides a dust protected deep groove ball bearing belongs to bearing technical field. It has solved the not good problem of current bearing leakproofness. This dust protected deep groove ball bearing, including the outer lane, the inner circle, the holder, a plurality of ball and sealing ring are constituteed, the sealing ring comprises rubber ring one and set up the metal framework in rubber ring one, the outer lane is by fitting with a contraceptive ring, go-between and lower ring form through the concatenation combination, and fit with a contraceptive ring, set up on the inner wall of go-between and lower ring with above-mentioned ball matched with cambered surface, it supplies the assembly annular one of the assembly of above-mentioned corresponding rubber ring one to all set up on the both ends face of going up a contraceptive ring and lower ring, the inner circle is located and sets up the assembly annular two that supplies its installation and also form sealed face on the periphery wall of corresponding rubber ring one department, all be provided with on the outer terminal surface of rubber ring one rather than laminating and be used for strengthening the sealed unit of leakproofness mutually. The utility model has the advantages of good and the loading and unloading of being convenient for of leakproofness.

Description

Dust protected deep groove ball bearing

Technical Field

The utility model belongs to the technical field of the bearing, a dust protected deep groove ball bearing is related to.

Background

The bearing is a precise part, but the working environment is complex, more than half of the reason for the early failure is caused by abnormal abrasion or poor rotation of a roller path due to impurities entering the inside of the bearing, and meanwhile, the sealing ring of the bearing is made of rubber, is soft and easy to deform and age, has poor sealing effect after deformation, is easy to fall off after continuous stress, causes poor sealing of the bearing, and fails in advance, and meanwhile, after the abrasion, the replacement cost is high, and the reassembly is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a deep groove ball bearing that dustproof effectual and reduce the replacement cost and be convenient for loading and unloading.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a dust protected deep groove ball bearing, includes outer lane, inner circle, holder, a plurality of ball and sealing ring and constitutes, the sealing ring constitute by rubber ring one and set up the metal framework in rubber ring one, its characterized in that, the outer lane form through the concatenation combination by fitting with a contraceptive ring, go-between and lower ring, and set up the cambered surface with above-mentioned ball matched with on the inner wall of fitting with a contraceptive ring, go-between and lower ring, the both ends face of fitting with a contraceptive ring all set up the assembly annular one that supplies the assembly of above-mentioned corresponding rubber ring one, the inner circle be located and offer on the periphery wall of corresponding rubber ring one and supply its installation and also form the assembly annular two of sealed face, the outer terminal surface of rubber ring one on all be provided with rather than laminating mutually and be used for strengthening the sealed unit of leakproofness.

In foretell dust protected deep groove ball bearing, the both ends face of go-between on all be provided with the outside arch of a plurality of axial and imbed the corresponding spacing arch of going up a contraceptive ring and going down the intra-annular respectively, a plurality of spacing arch sets up in the outside department of go-between to along the circumferencial direction interval distribution of go-between, spacing arch in the go-between link firmly with going up a contraceptive ring and lower ring mutually through the double-screw bolt.

In the above dust-proof deep groove ball bearing, the two end faces of the connecting ring are provided with outward axial protrusions which are respectively embedded into the corresponding sealing protrusions on the upper ring and the lower ring.

In the above-mentioned dust protected deep groove ball bearing, the sealing unit for the cover locate the rubber ring two on the inner circle, this rubber ring two sets up in assembly ring groove two, the external diameter of rubber ring two be greater than the internal diameter of outer lane, and the external diameter of rubber ring two is less than the external diameter of rubber ring one.

In the above-mentioned dust protected deep groove ball bearing, the inner wall that the corresponding assembly annular is located to upper ring and lower ring be provided with rather than being connected and being used for the limiting plate of two positions of restriction rubber ring, the cross section of this limiting plate personally submits the L shape structure setting of two symmetry settings.

In the dust-proof deep groove ball bearing, the outer end face of the second rubber ring located at the outer edge is provided with folded edges which are axially upward and matched with the limiting plates, and the inner end face of the second rubber ring located at the outer edge is provided with notch grooves.

In foretell dust protected deep groove ball bearing, rubber ring one and rubber ring two between be provided with the sealing ring one of strengthening the leakproofness, the inner and outer periphery wall of this sealing ring one is inconsistent with the outer wall of rubber ring and the corresponding inner wall of assembling ring groove one respectively, and this sealing ring is one to be located breach groove department, the inner wall of fitting with a contraceptive ring and lower ring on all be provided with radial inside arch and be used for limiting the spacing portion of sealing ring a position.

Compared with the prior art, this dust protected deep groove ball bearing has following advantage:

1. set up on the inner wall of fitting with a contraceptive ring, go-between and lower ring with above-mentioned ball matched with cambered surface, all be provided with on the outer terminal surface of rubber ring one rather than laminating mutually and be used for strengthening the leakproofness seal unit, the holistic assembly of being convenient for, the right side can guarantee the leakproofness after assembling simultaneously.

Drawings

Fig. 1 is a schematic perspective view of an outer ring of the dust-proof deep groove ball bearing.

Fig. 2 is a schematic sectional view of the assembled dust-proof deep groove ball bearing.

In the figure, 1, inner circle; 2. a first rubber ring; 3. a metal skeleton; 4. ring fitting; 5. a connecting ring; 6. a lower ring; 7. assembling a first ring groove; 8. assembling a second ring groove; 9. a limiting bulge; 10. sealing the protrusion; 11. a second rubber ring; 12. a limiting plate; 13. folding edges; 14. a notch groove; 15. a first sealing ring; 16. a limiting part.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the dustproof deep groove ball bearing comprises an outer ring, an inner ring 1, a retainer, a plurality of balls and a sealing ring, wherein the sealing ring comprises a rubber ring I2 and a metal framework 3 arranged in the rubber ring I2, the outer ring comprises an upper ring 4, a connecting ring 5 and a lower ring 6 which are spliced and combined, the inner walls of the upper ring 4, the connecting ring 5 and the lower ring 6 are provided with cambered surfaces matched with the balls, two end surfaces of the upper ring 4 and the lower ring 6 are respectively provided with an assembly ring groove I7 which is used for assembling the corresponding rubber ring I2 and forming a sealing surface, the outer peripheral wall of the inner ring 1 at the position corresponding to the rubber ring I2 is provided with an assembly ring groove II 8 which is used for installation and also forming a sealing surface, the outer end surface of the rubber ring I2 is provided with a sealing unit which is attached to the rubber ring I and is used for enhancing the sealing performance, the sealing unit is a rubber ring II 11 sleeved on the inner ring 1, the second rubber ring 11 is arranged in the second assembly ring groove 8, the outer diameter of the second rubber ring 11 is larger than the inner diameter of the outer ring, the outer diameter of the second rubber ring 11 is smaller than the outer diameter of the first rubber ring 2, the inner walls, corresponding to the first assembly ring groove 7, of the upper ring 4 and the lower ring 6 are provided with limiting plates 12 which are connected with the inner walls and used for limiting the positions of the second rubber ring 11, the cross sections of the limiting plates 12 are symmetrically arranged in an L-shaped structure, the limiting plates 12 can be integrally arranged with the upper ring 4 and the lower ring 6 and can also be fixedly connected through welding, the outer end faces, located at the outer edges, of the second rubber ring 11 are provided with folding edges 13 which are axially upward and matched with the limiting plates 12 and have elasticity, grooves 14 are formed in the inner end faces, located at the outer edges, of the second rubber ring 11, notches 15 for enhancing sealing performance are arranged between the first rubber ring 2 and the second rubber ring 11, and the inner end faces of the first sealing rings 15, The periphery wall offsets with the outer wall of rubber ring and the inner wall of corresponding assembly annular 7 respectively, and this sealing ring 15 is located breach groove 14 department, all is provided with radial inside protruding spacing portion 16 that just is used for limiting sealing ring 15 position on the inner wall of ring 4 and lower ring 6, can still set up the dust cover between ring 4 and lower ring 6 and the inner circle 1.

To put it further, in order to facilitate the assembly of outer lane, all be provided with the outside arch of a plurality of axial on the both ends face of go-between 5 and imbed the corresponding spacing arch 9 of fitting with a contraceptive ring in 4 and the lower ring 6 respectively, a plurality of spacing arch 9 sets up in the outside department of go-between 5 to along the circumferencial direction interval distribution of go-between 5, set up the assembly groove that supplies the assembly of corresponding spacing arch 9 on the terminal surface that fits with go-between 5 mutually of going up ring 4 and lower ring 6, spacing arch 9 in the go-between 5 links firmly with 4 and lower ring 6 mutually through the double-screw bolt, the quantity of above-mentioned double-screw bolt is the same with spacing arch 9's quantity, spacing arch 9 on the face of go-between 5 both ends can be crisscross setting.

Further saying, in order to guarantee the leakproofness after the assembly, still all be provided with the outside arch of axial on the both ends face of go-between 5, and imbed the corresponding sealed arch 10 of fitting with a contraceptive ring 4 and lower ring 6 in respectively, fit with a contraceptive ring 4 and lower ring 6 and be located and seted up the embedded groove on the corresponding sealed arch 10 department terminal surface, sealed arch 10 department can set up the sealing washer of strengthening the leakproofness.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the inner ring 1, the rubber ring one 2, the metal frame 3, the upper ring 4, the connection ring 5, the lower ring 6, the assembly ring groove one 7, the assembly ring groove two 8, the limit protrusion 9, the seal protrusion 10, the rubber ring two 11, the limit plate 12, the folded edge 13, the notch groove 14, the seal ring one 15, the limit portion 16, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (7)

1. The utility model provides a dust protected deep groove ball bearing, includes outer lane, inner circle (1), holder, a plurality of ball and sealing ring and constitutes, the sealing ring constitute by rubber ring (2) and set up metal framework (3) in rubber ring (2), a serial communication port, the outer lane form through the concatenation combination by fitting with a contraceptive ring (4), go-between (5) and lower ring (6), and set up on the inner wall of fitting with a contraceptive ring (4), go-between (5) and lower ring (6) with above-mentioned ball matched with cambered surface, the both ends face of fitting with a contraceptive ring (4) and lower ring (6) on all set up the assembly annular one (7) that supply above-mentioned corresponding rubber ring (2) assembly, inner circle (1) be located the periphery wall of corresponding rubber ring (2) department and set up assembly annular two (8) that supply its installation and also form sealed face, the outer terminal surface of rubber ring (2) on all be provided with rather than laminating and be used for strengthening the sealed list of leakproofness A meta.

2. The dust-proof deep groove ball bearing of claim 1, wherein a plurality of limiting protrusions (9) which axially protrude outwards and are respectively embedded into the corresponding upper ring (4) and the corresponding lower ring (6) are arranged on both end faces of the connecting ring (5), the limiting protrusions (9) are arranged on the outer side of the connecting ring (5) and are distributed at intervals along the circumferential direction of the connecting ring (5), and the limiting protrusions (9) in the connecting ring (5) are fixedly connected with the upper ring (4) and the lower ring (6) through studs.

3. The dust-proof deep groove ball bearing of claim 1, wherein the two end faces of the connecting ring (5) are provided with sealing protrusions (10) which axially protrude outwards and are respectively embedded into the corresponding upper ring (4) and the corresponding lower ring (6).

4. The dust-proof deep groove ball bearing as claimed in claim 1, wherein the sealing unit is a second rubber ring (11) sleeved on the inner ring (1), the second rubber ring (11) is arranged in the second assembly ring groove (8), the outer diameter of the second rubber ring (11) is larger than the inner diameter of the outer ring, and the outer diameter of the second rubber ring (11) is smaller than the outer diameter of the first rubber ring (2).

5. The dust-proof deep groove ball bearing according to claim 4, wherein the inner walls of the upper ring (4) and the lower ring (6) corresponding to the first assembling ring groove (7) are provided with limiting plates (12) connected with the inner walls and used for limiting the position of the second rubber ring (11), and the cross sections of the limiting plates (12) are arranged in two L-shaped structures which are symmetrically arranged.

6. The dust-proof deep groove ball bearing according to claim 5, wherein the outer end faces of the second rubber rings (11) at the outer edges are provided with folded edges (13) which are axially upward and matched with the limiting plates (12), and the inner end faces of the second rubber rings (11) at the outer edges are provided with notch grooves (14).

7. The dust-proof deep groove ball bearing as claimed in claim 6, wherein a first sealing ring (15) for enhancing the sealing performance is arranged between the first rubber ring (2) and the second rubber ring (11), the inner peripheral wall and the outer peripheral wall of the first sealing ring (15) respectively contact with the outer wall of the first rubber ring and the inner wall of the corresponding first assembly ring groove (7), the first sealing ring (15) is located at the notch groove (14), and the inner walls of the upper ring (4) and the lower ring (6) are respectively provided with a limiting part (16) which protrudes inwards in the radial direction and is used for limiting the position of the first sealing ring (15).

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