CN217784038U - Bearing with good leakproofness - Google Patents
Bearing with good leakproofness Download PDFInfo
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- CN217784038U CN217784038U CN202222136054.3U CN202222136054U CN217784038U CN 217784038 U CN217784038 U CN 217784038U CN 202222136054 U CN202222136054 U CN 202222136054U CN 217784038 U CN217784038 U CN 217784038U
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- waterproof sealing
- waterproof
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Abstract
The utility model relates to the technical field of bearings, in particular to a bearing with good sealing performance, which comprises an outer ring, a ball, a sealing structure and an inner ring; the sealing structure comprises an extension ring and a waterproof sealing ring; the extension ring and the inner ring are coaxially arranged, and one side of the extension ring in the axial direction of the inner ring extends outwards, or two sides of the extension ring in the axial direction of the inner ring extend outwards; the waterproof sealing ring is sleeved on the outer wall of the extension ring, the outer ring of the waterproof sealing ring is abutted against the inner wall of the outer ring, and the waterproof sealing ring is clamped in the first clamping groove and the second clamping groove by arranging the extension ring and the waterproof sealing ring, so that the waterproof sealing ring blocks the first gap, the bearing can be applied in a smaller environment, and the waterproof sealing ring also has a good waterproof function; still through setting up joint ring and sealed lubrication groove, guaranteed the work that waterproof sealing ring can be stable.
Description
Technical Field
The utility model relates to a bearing technical field specifically relates to a bearing with good leakproofness.
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 guarantee its gyration precision. In a conventional bearing, balls and a cage are provided between an outer ring and an inner ring, and grease is injected and filled into the balls, and then a seal portion is installed on the outer side. Although the waterproof bearing in the current market can achieve a certain waterproof effect, the sealing is usually realized by adopting two sealing parts fixed on an inner ring and an outer ring, the structure is complex, and the sealing effect is not ideal enough.
Chinese patent CN214404344U discloses a waterproof bearing, which comprises an outer ring, an inner ring, bearing balls arranged between the outer ring and the inner ring, and a retainer, wherein the retainer is arranged outside the bearing balls; a sealing component is also arranged between the inner ring and the outer ring; the sealing assembly comprises a sealing cover and a framework arranged in the sealing cover, wherein a sealing part is arranged on the sealing cover, and the sealing part comprises a sealing lip and an oil return lip; the sealing lip and the oil return lip are respectively contacted with the inner ring to form secondary sealing; although this scheme has played sealed effect to a certain extent, when using in small-size household electrical appliances, the volume that requires seal assembly is very little, and because seal assembly's structure special can improve sealed degree of difficulty, and adopt conventional bearing again to lack sealed function.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
The utility model discloses an above-mentioned defect to prior art existence especially provides a bearing with good leakproofness, has solved how miniature bearing realizes effectively sealedly, simplifies seal structure's problem simultaneously.
2. Technical scheme
In order to solve the technical problem, the utility model provides a bearing with good sealing performance, which comprises an outer ring, a ball, a sealing structure and an inner ring;
the sealing structure comprises an extension ring and a waterproof sealing ring;
the extension ring and the inner ring are coaxially arranged, and one side of the extension ring in the axial direction of the inner ring extends outwards, or two sides of the extension ring in the axial direction of the inner ring extend outwards;
the waterproof sealing ring is sleeved on the outer wall of the extension ring, and the outer ring of the waterproof sealing ring is abutted against the inner wall of the outer ring.
Wherein, the inner wall of the waterproof sealing ring is provided with a sealing and lubricating groove,
the sealed lubrication groove is arranged on the side wall of the inner ring of the waterproof sealing ring around the axis of the waterproof sealing ring, and the sealed lubrication groove is in sealed fit with the sleeve joint of the extension ring.
Wherein, the sealing structure also comprises a wear-resistant layer; the wear-resistant layer is coated on the outer side of the waterproof sealing ring.
Wherein the sealing structure further comprises a waterproof coating; a water resistant coating is disposed on the outer wall of the extension ring.
Wherein, the inside of the waterproof sealing ring is provided with a reinforced bracket, and the section of the reinforced bracket is L-shaped, I-shaped or Z-shaped.
The side wall of the inner ring is provided with a first clamping groove, the first clamping groove is of an annular structure and is formed around the axis of the inner ring;
a second clamping groove is formed in the side wall of the outer ring, the second clamping groove is of an annular structure and is formed around the axis of the outer ring, and the bottom end face of the first clamping groove is coplanar with the bottom end face of the second clamping groove;
the inner ring and the outer ring of one side of the waterproof sealing ring, which are close to the inner ring, are respectively arranged in the first clamping groove and the second clamping groove, the diameter of the inner ring of the waterproof sealing ring is the same as that of the outer ring of the extension ring, the axis of the waterproof sealing ring is collinear with that of the inner ring, and the width of the waterproof sealing ring is larger than the depth of the first clamping groove.
Wherein, still be equipped with the joint ring on the extension ring, joint ring can cooperate the joint with sealed lubrication groove.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that through the arrangement of the extension ring and the waterproof sealing ring, the waterproof sealing ring is clamped in the first clamping groove and the second clamping groove, so that the waterproof sealing ring blocks the first gap, the bearing can be applied in a smaller environment, and the bearing also has a good waterproof function; still through setting up joint ring and sealed lubrication groove, guaranteed the work that waterproof sealing ring can be stable.
Drawings
FIG. 1 is a perspective view of the present application;
FIG. 2 is an elevation view of a bearing of the present application provided with a seal structure;
FIG. 3 isbase:Sub>A schematic cross-sectional view at A-A of FIG. 2 of the present application;
FIG. 4 is an elevation view of a bearing of the present application provided with two seal structures;
FIG. 5 is a schematic cross-sectional view at B-B of FIG. 3 of the present application;
FIG. 6 is a front view of the extension ring of the present application provided with a waterproof gasket;
FIG. 7 is a schematic cross-sectional view at C-C of FIG. 6 of the present application;
FIG. 8 is a perspective view of the waterproof seal ring with a seal lubrication groove of the present application;
FIG. 9 is a cross-sectional view of the waterproof gasket of the present application;
fig. 10 is an optical axis schematic view 1 of embodiment 1 of the present application;
fig. 11 is an optical axis schematic view 2 of embodiment 1 of the present application;
fig. 12 is a step axis schematic view 1 of embodiment 3 of the present application;
fig. 13 is an optical axis schematic view 1 of embodiment 3 of the present application;
in the figure:
1 is an outer ring; 2 is a ball; 3 is a sealing structure; 4 is an inner ring;
31 is an extension ring; 32 is a first clamping groove; 33 is a second clamping groove; 34 is a waterproof sealing ring; 35 is a clamping assembly; 341 reinforcing support; 351 is a clamping ring; 352 is a sealed lubrication groove.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1 to 8, a bearing with good sealing performance of the present embodiment includes an outer ring 1, balls 2, a sealing structure 3, and an inner ring 4; the sealing structure 3 comprises an extension ring 31, a first clamping groove 32, a second clamping groove 33 and a waterproof sealing ring 34; the extension ring 31 is fixedly arranged on the side wall of the inner ring 4 along the axis of the inner ring 4; the first clamping groove 32 is of an annular structure, and the first clamping groove 32 is formed in the side wall of the inner ring 4 around the axis of the inner ring 4; the second clamping groove 33 is of an annular structure, the axis of the inner ring 4 is collinear with the axis of the outer ring 1, the second clamping groove 33 is arranged on the side wall of the outer ring 1 around the axis of the outer ring 1, the depth of the first clamping groove 32 is the same as that of the second clamping groove 33, and the bottom end face of the first clamping groove 32 is coplanar with that of the second clamping groove 33; the inner ring and the outer ring of the waterproof sealing ring 34 close to one side of the inner ring 4 are respectively arranged in the first clamping groove 32 and the second clamping groove 33, the diameter of the inner ring of the waterproof sealing ring 34 is the same as that of the outer ring 1 of the extension ring 31, the axis of the waterproof sealing ring 34 is collinear with that of the inner ring 4, and the width of the waterproof sealing ring 34 is larger than the depth of the first clamping groove 32.
The diameter of inner ring 4 is less than the diameter of outer ring 1, and has first space between inner ring 4 and the outer ring 1, and ball 2 is provided with a plurality ofly, and ball 2 is around the even setting of inner ring 4's axis in first space, and the distance between 4 lateral walls of inner ring and the 1 lateral wall of outer ring is less than ball 2's diameter, and the phenomenon of rolling out in the first space just can not appear following to ball 2 like this. The number of the sealing structures 3 needs to be determined according to actual conditions, if the phenomenon of water inflow on one side of the bearing needs to be prevented, only one sealing structure 3 needs to be arranged at the moment, and if the phenomenon of water inflow on the two sides of the bearing needs to be prevented, two sealing structures 3 need to be arranged on the two sides of the bearing respectively. When setting up a seal structure 3, seal structure 3 need set up in one side that inner ring 4 can contact with water, and after setting up seal structure 3 and accomplishing, inner ring 4 just no longer contacts with water, and the same reason is when setting up two seal structure 3. The width of the waterproof sealing ring 34 is a linear distance from one side of the waterproof sealing ring 34 close to the inner ring 4 to one side of the waterproof sealing ring 34 far away from the inner ring 4, and the working principle of the sealing structure 3 is as follows, because the extension ring 31 is fixedly arranged on the side wall of the inner ring 4, and two sides of the waterproof sealing ring 34 are respectively arranged in the first clamping groove 32 and the second clamping groove 33, as shown in fig. 12 and 13, the waterproof sealing ring 34 is preferably made of an elastic material, because the width of the waterproof sealing ring 34 is greater than the depth of the first clamping groove 32, when the bearing normally works, water flow can extrude the waterproof sealing ring 34, so that one side of the waterproof sealing ring 34 close to the inner ring 4 is tightly attached to the bottoms of the first clamping groove 32 and the second clamping groove 33, and because the waterproof sealing ring 34 has elasticity, deformation can occur after the waterproof sealing ring 34 is extruded, the waterproof sealing ring 34 can extrude the side wall of the first clamping groove 32 and the side wall of the second clamping groove 33, and thus external water can not tightly flow into gaps between the first clamping groove 32 and the second clamping groove 33. It should be noted that the thickness of the waterproof sealing ring 34 needs to be larger than the distance between the side wall of the inner ring 4 and the side wall of the outer ring 1, and the thickness of the waterproof sealing ring 34 refers to the linear distance from the outer ring of the waterproof sealing ring 34 to the inner ring of the waterproof sealing ring 34, so that when the waterproof sealing ring 34 is pressed by water flow, the waterproof sealing ring 34 cannot be squeezed into the first gap. Because waterproof sealing washer 34 simple structure, so also can be more convenient when making and installation, when the installation, with waterproof sealing washer 34 both sides respectively the joint go into first joint groove 32 and second joint inslot 33 in can. So that the bearing can be applied in a small environment and also has a waterproof function.
As shown in fig. 7 and 8: the inner wall of the waterproof sealing ring 34 is provided with a sealing lubricating groove 352, the sealing lubricating groove 352 is V-shaped, certain lubricating grease can be contained in the sealing lubricating groove 352, and meanwhile, the sealing lubricating groove has good sealing performance in a compression state, so that a sealing effect is achieved;
in addition to the above design, the present embodiment further includes a conventional design, that is, directly on the basis of a conventional general bearing without a sealing effect, only one side or two sides of the extension inner ring 4 is structured to form an extension ring 31 of the optical axis, as shown in fig. 10 and 11, and then the waterproof sealing ring 34 adopted in the present embodiment is installed, and a good sealing effect can also be achieved by installing and pressing.
Example 2:
compared with embodiment 1, in this embodiment, the reinforcing bracket 341 is disposed inside the waterproof sealing ring, and the cross section of the reinforcing bracket is L-shaped, I-shaped, or Z-shaped, as shown in fig. 9, which can effectively improve the strength of the sealing ring, thereby improving the sealing effect and prolonging the service life.
Example 3:
compared with embodiment 1, in this embodiment, as shown in fig. 7, a clamping ring is further disposed on the extension ring, and the sealing lubrication groove 352 is in clamping fit with the clamping ring 351. After waterproof sealing ring 34 passes through sealed lubrication groove 352 joint on joint ring 351, rivers are when extrudeing waterproof sealing ring 34 this moment, waterproof sealing ring 34 can take place deformation, and rivers can not produce thrust to waterproof sealing ring 34 all the time because external effect, when the pressure that rivers one side was kept away from to the bearing is greater than the pressure value that the bearing is close to rivers one side, the phenomenon that waterproof sealing ring 34 was drawed will appear, if at this moment do not set up joint ring 351 on extension ring 31, the circumstances that waterproof sealing ring 34 drops from first joint groove 32 and second joint groove 33 will appear, waterproof sealing ring 34 just no longer has sealing function this moment, and just above-mentioned problem can not appear after having set up joint ring 351 and sealed lubrication groove 352, the work that waterproof sealing ring 34 can be stable has been guaranteed.
The sealing structure 3 further comprises a wear-resistant layer; the wear layer is coated on the outside of the waterproof seal ring 34. Because waterproof sealing ring 34 can take place deformation when receiving the extrusion of rivers, the coefficient of friction increase between waterproof sealing ring 34 and the inner ring 4 after the change can make waterproof sealing ring 34's wearing and tearing increase like this, and behind the wearing layer that sets up, alright reduce waterproof sealing ring 34's wearing and tearing, has prolonged waterproof sealing ring 34's life.
The sealing structure 3 further comprises a waterproof coating; a water-repellent coating is provided on the outer wall of the extension ring 31. Since the extension ring 31 is in contact with water, providing a waterproof coating on the sidewall of the extension ring 31 may prevent the extension ring 31 from being corroded by water.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A bearing with good sealing, characterized in that the bearing with good sealing comprises an outer ring (1), balls (2), a sealing structure (3) and an inner ring (4);
the sealing structure (3) comprises an extension ring (31) and a waterproof sealing ring (34);
the extension ring (31) is arranged coaxially with the inner ring (4), and the extension ring (31) extends outwards along one side of the axial direction of the inner ring (4), or the extension ring (31) extends outwards along two sides of the axial direction of the inner ring (4);
the waterproof sealing ring (34) is sleeved on the outer wall of the extension ring (31), and the outer ring of the waterproof sealing ring (34) is abutted against the inner wall of the outer ring (1).
2. A bearing with good sealing performance according to claim 1, characterized in that the inner wall of the waterproof sealing ring (34) is provided with a sealing lubrication groove (352);
the sealing and lubricating groove (352) is arranged on the side wall of the inner ring of the waterproof sealing ring (34) around the axis of the waterproof sealing ring (34), and the sealing and lubricating groove (352) is in sealing fit with the sleeving part of the extension ring (31).
3. A bearing with good sealing according to claim 1, characterized in that the sealing structure (3) further comprises a wear resistant layer;
the wear-resistant layer is coated on the outer side of the waterproof sealing ring (34).
4. A bearing with good sealing according to claim 1, characterized in that the sealing structure (3) further comprises a water-proof coating;
a waterproof coating is provided on the outer wall of the extension ring (31).
5. A bearing with good sealing performance according to claim 1, wherein the waterproof sealing ring (34) is internally provided with a reinforcing bracket (341),
the cross section of the reinforcing bracket (341) is L-shaped, I-shaped or Z-shaped.
6. The bearing with good sealing performance is characterized in that the side wall of the inner ring (4) is provided with a first clamping groove (32), the first clamping groove (32) is of an annular structure and is formed around the axis of the inner ring (4);
a second clamping groove (33) is formed in the side wall of the outer ring (1), the second clamping groove (33) is of an annular structure and is formed around the axis of the outer ring (1), and the bottom end face of the first clamping groove (32) is coplanar with the bottom end face of the second clamping groove (33);
the inner ring and the outer ring of the waterproof sealing ring (34) close to one side of the inner ring (4) are respectively arranged in the first clamping groove (32) and the second clamping groove (33), the diameter of the inner ring of the waterproof sealing ring (34) is the same as that of the outer ring (1) of the extension ring (31), the axis of the waterproof sealing ring (34) is collinear with that of the inner ring (4), and the width of the waterproof sealing ring (34) is larger than the depth of the first clamping groove (32).
7. A bearing with good sealing performance according to claim 2, wherein the extension ring (31) is further provided with a clamping ring (351), and the clamping ring (351) can be matched and clamped with the sealing lubrication groove (352).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222136054.3U CN217784038U (en) | 2022-08-15 | 2022-08-15 | Bearing with good leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222136054.3U CN217784038U (en) | 2022-08-15 | 2022-08-15 | Bearing with good leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217784038U true CN217784038U (en) | 2022-11-11 |
Family
ID=83906799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222136054.3U Active CN217784038U (en) | 2022-08-15 | 2022-08-15 | Bearing with good leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217784038U (en) |
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2022
- 2022-08-15 CN CN202222136054.3U patent/CN217784038U/en active Active
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