CN219510027U - Antifriction structure of bearing seal structure - Google Patents
Antifriction structure of bearing seal structure Download PDFInfo
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- CN219510027U CN219510027U CN202222670875.5U CN202222670875U CN219510027U CN 219510027 U CN219510027 U CN 219510027U CN 202222670875 U CN202222670875 U CN 202222670875U CN 219510027 U CN219510027 U CN 219510027U
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- ring
- framework
- sealing
- bearing
- inner ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The antifriction structure of a kind of bearing seal structure, in the field of rolling bearing, the said bearing seal structure includes bearing inner race, bearing outer lane, rolling body, seal ring, seal skeleton and antifriction ring; one end of the bearing inner ring is provided with a sealing framework step, and the length of the framework step is matched with that of the sealing framework; the diameter of the framework step is matched with the inner diameter of the sealing framework; a limit groove is formed in the root of the inner end of the skeleton step; the sealing framework can be prevented from falling off, and the sealing ring is kept to move on the antifriction ring.
Description
Technical Field
The utility model belongs to the field of rolling bearings, and particularly relates to an antifriction structure in a sealing structure for a bearing working in an open working scene.
Background
The bearing is an important industrial element, is applied to a wide range of occasions with rotary motion, the bearing needs to be lubricated and sealed during working, a circulating lubrication system is adopted for the bearing working in a closed scene to forcedly lubricate the bearing, a forced circulating lubrication system such as an automobile clutch release bearing cannot be adopted for the bearing in an open working scene, and the working parts of the clutch release bearing are directly exposed in a dust environment because the working environment of the clutch release bearing is in an open state, so that the lubrication and sealing of the clutch release bearing are a long-standing problem for those skilled in the art; the prior methods for realizing the lubrication and sealing of the clutch release bearing are roughly as follows; because of the open working environment, the lubricating system is fractured, grease is mostly smeared and lubricated, so that the lubricating grease is hardened and even enters the grease to increase friction due to the action of dust; the sealing is mostly carried out by combining the outer cover with the sealing ring, the outer cover can only solve the problem that rough dust enters the bearing in a large amount, and the sealing ring is adopted for sealing, so that new problems can occur; if a gap is left at the relative movement, dust enters the bearing from the gap, and the bearing is worn out to fail.
Disclosure of Invention
Aiming at the sealing problem of the existing bearing in the open working scene in use, the utility model provides a bearing sealing structure capable of reducing the abrasion of a sealing element and guaranteeing the sealing effect, and the specific technical scheme is that the bearing sealing structure is characterized in that: the bearing sealing structure comprises a bearing outer ring, a bearing inner ring, rolling bodies, a sealing ring, a wear-reducing ring and a sealing framework; the bearing outer ring is arranged on the periphery of the bearing inner ring, is connected with the bearing inner ring through a rolling body and can rotate around the bearing inner ring relatively; the rolling bodies are arranged between the bearing inner ring and the bearing outer ring and respectively contacted with the bearing inner ring and the bearing outer ring; the rolling bodies are sequentially arranged in rolling body channels of the bearing inner ring and the bearing outer ring; the sealing ring is arranged between the bearing inner ring and the bearing outer ring and is positioned on the same end face of the bearing inner ring and the bearing outer ring, the outer circumference of the ring is in contact with the bearing outer ring and is connected with the outer surface of the antifriction ring, the space between the end faces of the bearing inner ring and the bearing outer ring can be sealed, and the space where the rolling bodies are positioned is isolated from the outer space of the bearing by the sealing ring; the inner diameter of the sealing ring is smaller than or equal to the outer diameter of the antifriction ring, namely the sealing ring is tightly pressed on the outer surface of the antifriction ring; the wear-reducing ring is arranged on the sealing framework and is tightly, fixedly and hermetically connected with the sealing framework; the sealing framework is arranged on the outer diameter of one end of the bearing inner ring, is embedded with the bearing inner ring and is an annular body with a convex edge, and the convex edge is positioned at the outer end of the bearing inner ring.
Further, the antifriction ring is an annular band-shaped body made of antifriction lubricating material.
Further, the antifriction ring is attached to the circumference of the outer surface of the seal frame.
Further, the inner diameter of the sealing ring is smaller than the outer diameter of the antifriction ring by 0-5 mm.
Furthermore, in order to prevent the problem that when the sealing ring is fixedly connected with the bearing outer ring and is in sliding connection with the bearing inner ring, the inner diameter of the sealing ring is in pressure contact with the surface of the antifriction ring, when the friction force between the inner diameter of the sealing ring and the surface of the antifriction ring is larger than that between the sealing ring and the bearing outer ring, the sealing ring and the bearing outer ring can be caused to rotate relatively, and the problem that the sealing ring is damaged rapidly is solved, the utility model provides a sealing structure which can overcome the problem that the sealing ring and the bearing outer ring rotate relatively, and the sealing structure between the sealing ring and the bearing outer ring of the bearing comprises the bearing inner ring, the bearing outer ring, the rolling bodies, the sealing ring, a sealing skeleton and the antifriction ring; the method is characterized in that: the inner side of the end part of the bearing outer ring is provided with a sealing groove, and the periphery of the sealing ring is arranged in a sealing ring groove at one end of the bearing outer ring and is clamped with the sealing ring groove; the thickness of the peripheral edge of the sealing ring is larger than the width of a sealing ring groove at the end part of the outer ring of the bearing; a notch is arranged on the side wall of the sealing ring groove; the gap is more than one, is distributed on the side wall of the sealing groove and penetrates through the thickness of the side wall.
Further, in application, when the seal skeleton is made of a metal material, after the seal skeleton is used for a period of time, the binding force between the seal skeleton and the bearing inner ring is reduced, the seal skeleton can fall off from the bearing inner ring, and meanwhile, the seal ring and the antifriction ring cannot be reliably contacted; the method is characterized in that: one end of the bearing inner ring is provided with a sealing framework mounting step, and the length of the mounting step is matched with that of the sealing framework; the diameter of the mounting step is matched with the inner diameter of the sealing framework; a limit groove is formed in the root of the inner end of the mounting step; the sealing framework is arranged on an end sealing framework mounting step of the bearing inner ring, sleeved with the bearing inner ring and embedded with the bearing inner ring; the convex edge of the sealing framework is positioned at the outer edge (right end) of the mounting step of the sealing framework of the bearing inner ring, and the height of the convex edge is higher than the thickness of the antifriction ring; the antifriction ring is arranged on the sealing framework, fixedly connected with the sealing framework and positioned on the inner side (the left side in the figure 2) of the convex edge of the sealing framework; the sealing ring is arranged on the outer diameter of the antifriction ring and is sleeved with the antifriction ring.
Furthermore, the antifriction ring is annular, the inner diameter is matched with the outer diameter of the sealing framework, and the outer diameter is matched with the inner diameter of the sealing ring.
Further, the bearing inner ring comprises an inner hole, a framework step, a limit groove, an inner ring channel and an inner ring outer circle; the inner hole is arranged in the outer circle of the inner ring and is a round hole and coaxial with the inner ring channel; the framework steps are arranged on the side edge of the inner ring channel, the diameter of the framework steps is smaller than that of the outer circle of the inner ring, and the length of the framework steps is matched with that of the sealing framework; the limiting groove is arranged on the framework step and is positioned at one end close to the inner ring channel; the limiting groove is formed in the way that the sealing framework is arranged on the framework step, and the sealing framework which is pressed and assembled by rolling can sink into the limiting groove; the inner ring channel is arranged on the outer circle of the inner ring, is arc-shaped concave and winds the outer circle of the inner ring for a circle; the outer circle of the inner ring is cylindrical and concentric with the inner hole, and is positioned at the periphery of the inner hole.
Further, the sealing framework comprises a convex edge, a framework outer circle, a framework inner circle, a calendaring groove and a buckling edge; the convex edge is arranged at one end of the outer circle of the framework and protrudes out of the outer surface of the outer circle of the framework; the framework outer circle is positioned at the periphery of the framework inner circle and is a cylinder concentric with the framework inner circle; the framework inner circle is arranged in the framework outer circle and concentric with the framework outer circle; the calendaring groove is arranged at one end of the outer circle of the framework and the inner circle of the framework, and the other end of the calendaring groove is opposite to the position of the convex edge of the outer circle of the framework; the distance between the rolling groove and the right end of the convex edge is matched with the position of a limit groove on the bearing inner ring; the buckling edges are arranged at the ends of the outer circle of the framework and the inner circle of the framework and are positioned at the same end of the calendaring groove.
Furthermore, the length of the buckling edge is matched with the width of the limit groove on the bearing inner ring.
Furthermore, in order to enhance the sealing performance between the inner edge of the sealing ring and the antifriction ring, the utility model provides a sealing structure combining the sealing ring and the antifriction ring, and the specific technical scheme is that the antifriction sealing structure is characterized in that: the antifriction sealing structure is arranged on the bearing and comprises a sealing ring and a antifriction ring, wherein the sealing ring is arranged at one end of the bearing and is positioned between the bearing inner ring and the bearing outer ring; the wear-reducing ring is arranged on the outer circle of the sealing framework and fixedly connected with the outer circle of the sealing framework, and comprises an inner hole of the wear-reducing ring, a main body of the wear-reducing ring and a labyrinth dustproof device; the inner hole of the antifriction ring is arranged in the center of the antifriction ring and is a through hole, and the size and the shape of the inner hole are matched with the outer circle of the framework of the sealing framework; the anti-friction ring main body is made of anti-friction lubricating materials or is an annular body with the anti-friction lubricating materials coated on the outer circumferential surface, and the thickness of the annular body is matched with the convex edge of the sealing framework; the labyrinth dustproof device is characterized in that more than one annular groove is arranged on the outer circumferential surface of the main body of the antifriction ring and is combined with an additional lip on the inner lip of the sealing ring to form a labyrinth dustproof structure; the sealing ring comprises an outer lip, a framework, an inner supporting ring, an inner additional lip and an inner lip; the outer lip is arranged on the outer circumference of the sealing ring and made of rubber or plastic, and the outer diameter and the thickness of the outer lip are matched with those of a sealing groove on the outer ring of the bearing; the outer supporting ring is arranged near the outer lip and is made of a thin-wall ring shape made of the same material as the outer lip, so that the connection between the outer lip and the bearing outer ring can be supported in an auxiliary mode, and elastic force is kept to be exerted between the outer lip and the bearing outer ring; the framework is made of rubber or plastic or a structure in which a supporting framework is wrapped in the rubber or plastic, and can support the inner lip and the outer lip; the inner support ring is arranged near the inner lip and is positioned at the turning part of the connecting part of the inner lip and the framework, when the inner lip is bent after being stressed, the inner lip can be contacted with the inner support ring, and the inner support ring can give the inner lip elastic support; the inner additional lip is arranged on the surface of the inner lip, the surface is in contact with the surface of the antifriction ring, and more than one inner additional lip can be embedded with a groove of a labyrinth dustproof device on the antifriction ring; the inner lip is arranged at the inner end of the framework and connected with the framework, and the inner diameter of the inner lip is smaller than the outer diameter of the antifriction ring.
Furthermore, aiming at the condition that the sealing ring and the bearing outer ring relatively rotate when the elasticity of the outer lip of the sealing ring is insufficient, the sealing ring can be heated, the sealing ring can be burnt in a short time, and the sealing structure is damaged; therefore, the utility model provides a bearing sealing structure for increasing the binding force between a sealing ring and a bearing outer ring, and the specific technical scheme is that the bearing sealing structure comprises a bearing inner ring, a bearing outer ring, rolling bodies and a sealing ring; the method is characterized in that: the sealing ring is arranged between the bearing inner ring and the bearing outer ring and comprises an outer lip, a framework, an inner supporting ring, an inner additional lip, an inner lip and an outer supporting ring, wherein the outer supporting ring is arranged near the outer lip, the section of the outer supporting ring is conical, (so that the supporting force can be increased along with the increase of the contact depth between the outer supporting ring and the outer lip); the outer supporting ring is arranged in the direction that when the outer lip edge is rolled on the outer ring of the bearing, the outer lip edge of the rolled back head is contacted with the outer supporting ring.
Furthermore, the outer supporting ring is annular and is arranged at the framework or the outer lip of the sealing ring in a sealing way.
Furthermore, the outer supporting ring is in an intermittent ring shape.
Further, the section of the outer supporting ring is trapezoid.
Advantageous effects
The utility model has the beneficial effects that the dustproof sealing of the clutch bearing working in the open environment can be realized to reach the state of the closed working environment, and the working life of the bearing is prolonged.
Drawings
FIG. 1 is a schematic view of the outer structure of a bearing;
FIG. 2 is a schematic cross-sectional view of a bearing;
FIG. 3 is a schematic view of a seal structure mounted on an inner race of a bearing;
FIG. 4 is a schematic view of a structural form of the bearing outer race;
FIG. 5 is a schematic cross-sectional view of FIG. 4;
FIG. 6 is a schematic structural view of a seal skeleton;
FIG. 7 is a schematic view of a bearing inner race mated with a seal skeleton;
FIG. 8 is a schematic view of one form of seal ring;
FIG. 9 is a schematic cross-sectional view of FIG. 8;
FIG. 10 is a schematic illustration of a structural form of a wear ring;
FIG. 11 is a schematic view of the mounting structure of the seal ring and the bearing outer ring
1. The bearing outer ring 2, the bearing inner ring 3, the rolling bodies 4, the sealing ring 5, the wear-reducing ring 6, the sealing framework 11, the outer ring outer circle 12, the outer ring channel 13, the sealing ring groove 14, the gap 21, the inner hole 22, the framework step 23, the limit groove 24, the inner ring channel 25, the outer ring outer circle, 41, outer lip 42, outer support ring 43, framework 44, inner support ring 45, inner additional lip 46, inner lip 51, inner bore of the wear ring 52, main body of the wear ring 53, labyrinth dustproof device 61, convex edge 62, outer framework circle 63, inner framework circle 64, rolling groove 65, fastening edge.
Detailed Description
For better illustrating the technical solution of the present utility model, referring to fig. 7, the embodiment of the present utility model is further illustrated, and in this example, the bearing inner ring 2 includes an inner hole 21, a skeleton step 22, a limiting groove 23, an inner ring groove 24 and an inner ring outer circle 25; the inner hole 21 is arranged in the outer circle 25 of the inner ring and is a round hole and is coaxial with the inner ring channel 24; the framework step 22 is arranged at the side of the inner ring channel 24, the diameter of the outer circle is smaller than that of the outer circle 25 of the inner ring, and the length is matched with the length of the sealing framework 6; the limiting groove 23 is arranged on the framework step 22 and is positioned at one end close to the inner ring channel 24; after the seal skeleton 6 is arranged on the skeleton step 22, the seal skeleton 6 which is pressed and assembled by rolling can be sunk into the limit groove 23; the inner ring channel 24 is arranged on the inner ring outer circle 25, is arc-shaped concave and surrounds the inner ring outer circle 24 for a circle; the outer circle 25 of the inner ring is cylindrical and concentric with the inner hole 21 and is positioned at the periphery of the inner hole 21, thus completing the implementation of the bearing inner ring 2; as shown in fig. 2 and 3, in this example, the seal skeleton 6 is sleeved on the skeleton step 22 of the bearing inner ring 2, so as to ensure that the convex edge of the seal skeleton 6 is located at one side of the edge of the end part of the bearing inner ring 2, and the inner end of the seal skeleton 6 is roll-pressed by adopting a common means in the art, so as to ensure that the inner end of the seal skeleton 6 is embedded in the limit groove 23 of the bearing inner ring 2, thus the phenomenon that the seal skeleton 6 exits from the skeleton step 22 along the axial direction of the bearing inner ring 2 is avoided; the antifriction ring 5 is sleeved on the sealing framework 6 and positioned on the inner side of the convex edge 61 of the sealing framework 6, and the outer circle surface is lower than the height of the convex edge 61; the sealing ring 4 is sleeved on the outer circle of the antifriction ring 5, thus completing the implementation of the utility model; the sealing ring has the advantages of preventing the sealing framework 6 from falling off and enabling the sealing ring 4 to move along the antifriction ring 5.
Claims (3)
1. The antifriction structure of the bearing seal structure comprises a bearing inner ring, a bearing outer ring, rolling bodies, a seal ring, a seal framework and a antifriction ring; the method is characterized in that: one end of the bearing inner ring is provided with a sealing framework step, and the length of the framework step is matched with that of the sealing framework; the diameter of the framework step is matched with the inner diameter of the sealing framework; a limit groove is formed in the root of the inner end of the skeleton step; the sealing framework is arranged on an end framework step of the bearing inner ring, sleeved with the bearing inner ring and embedded with the bearing inner ring; the convex edge of the sealing framework is positioned at the outer edge of the mounting step of the sealing framework of the bearing inner ring; the wear-reducing ring is arranged on the sealing framework, fixedly connected with the sealing framework and positioned at the inner side of the convex edge of the sealing framework; the sealing ring is arranged on the outer diameter of the antifriction ring and is sleeved with the antifriction ring; the bearing inner ring comprises an inner hole, a framework step, a limit groove, an inner ring channel and an inner ring outer circle; the inner hole is arranged in the outer circle of the inner ring and is a round hole and coaxial with the inner ring channel; the framework steps are arranged on the side edge of the inner ring channel, the diameter of the framework steps is smaller than that of the outer circle of the inner ring, and the length of the framework steps is matched with that of the sealing framework; the limiting groove is arranged on the framework step and is positioned at one end close to the inner ring channel; the limiting groove is formed in the way that the edge of the sealing framework which is pressed and assembled by rolling can sink into the limiting groove after the sealing framework is arranged on the framework step; the inner ring channel is arranged on the outer circle of the inner ring, is arc-shaped concave and winds the outer circle of the inner ring for a circle; the outer circle of the inner ring is cylindrical and concentric with the inner hole, and is positioned at the periphery of the inner hole.
2. The antifriction structure of a bearing seal arrangement of claim 1 wherein: the wear-reducing ring is annular, the inner diameter is matched with the outer diameter of the sealing framework, and the outer diameter is matched with the inner diameter of the sealing ring.
3. The antifriction structure of a bearing seal arrangement of claim 1 wherein: the height of the convex edge of the sealing framework is higher than the thickness of the antifriction ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222670875.5U CN219510027U (en) | 2022-10-11 | 2022-10-11 | Antifriction structure of bearing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222670875.5U CN219510027U (en) | 2022-10-11 | 2022-10-11 | Antifriction structure of bearing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219510027U true CN219510027U (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222670875.5U Active CN219510027U (en) | 2022-10-11 | 2022-10-11 | Antifriction structure of bearing seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219510027U (en) |
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2022
- 2022-10-11 CN CN202222670875.5U patent/CN219510027U/en active Active
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