Rubber seal with protective cap

Abstract

The utility model discloses a kind of rubber sealing elements with protective cover, including the sealing body and protective cover between bearing inner ring and bearing outer ring, the protective cover is located at the outside of sealing body, and protective cover and sealing body are connected with each other in the form of connecting point, the sealing body includes mounting handle, sealing lip and dust lip, the mounting handle is installed in the installation groove of bearing inner ring, the side front end of mounting handle is equipped with anti-off barb, the sealing lip is located in the sealing groove of bearing outer ring, and sealing lip and the upper and lower end surfaces of sealing groove are fitted, the dust lip is located at the outside of sealing lip, and dust lip and the inner end surface of bearing outer ring are fitted. The utility model has superior pressure-maintaining capacity and sealing performance, can effectively prevent sealing from falling off and lubricating grease from leaking, while the protective cover can protect the sealing body during the bearing anticorrosion process, and avoid the sealing body and external environment contact, improve product service life, reduce production cost.

Description

Technical Field

[0001] This utility model relates to a rubber seal with a protective cover, belonging to the field of bearing seals. Background Technology

[0002] Yaw and pitch bearings operate in harsh environments, at high altitudes and exposed to sunlight, and the costs of subsequent maintenance and replacement of their seals are high. During operation, grease is continuously added to the bearing, leading to increased internal grease pressure. When the grease drain hole becomes unobstructed or blocked, the continued increase in internal pressure can easily cause the seal to detach. Therefore, the seal needs better anti-detachment and protective properties to extend its service life. Summary of the Invention

[0003] The purpose of this invention is to provide a rubber seal with a protective cover, which enhances the stability of the sealing installation, increases the protective function, and improves the service life.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a rubber seal with a protective cover, comprising a sealing body and a protective cover disposed between the inner ring and the outer ring of a bearing. The protective cover is disposed on the outside of the sealing body, and the protective cover and the sealing body are connected to each other by a connection point. The sealing body includes an installation handle, a sealing lip, and a dustproof lip. The installation handle is installed in the installation groove of the inner ring of the bearing, and an anti-detachment barb is provided on one front end of the installation handle. The sealing lip is located in the sealing groove of the outer ring of the bearing, and the sealing lip is in contact with the upper and lower end faces of the sealing groove. The dustproof lip is located on the outside of the sealing lip, and the dustproof lip is in contact with the inner end face of the outer ring of the bearing.

[0005] As a further preferred embodiment of this solution, the protective cover is provided with a first protective lip and a second protective lip at both ends, the first protective lip being in compression fit with the end face of the inner ring of the bearing, and the second protective lip being in compression fit with the end face of the outer ring of the bearing.

[0006] As a further preferred embodiment of this solution, a first mounting handle arcuate boss and a second mounting handle arcuate boss are provided on one side of the mounting handle at intervals, and a first arcuate groove and a second arcuate groove are provided in the mounting groove to cooperate with the first mounting handle arcuate boss and the second mounting handle arcuate boss.

[0007] As a further preferred embodiment of this solution, the sealing lip is provided with a three-layer sealing lip structure, namely a first sealing lip, a second sealing lip and a third sealing lip. The first sealing lip and the second sealing lip are compressed and fitted to one side end face of the sealing groove, and the third sealing lip is compressed and fitted to the other side end face of the sealing groove.

[0008] As a further preferred embodiment of this solution, the sealing body is a one-piece molded structure.

[0009] The beneficial effects of this utility model are as follows: This utility model has excellent pressure holding capacity and sealing performance, which can effectively prevent the seal from falling off and the grease from leaking. At the same time, the protective cover can protect the sealing body during the bearing corrosion protection process, reduce the disassembly and assembly of the protective seal during the bearing operation, reduce production costs, and also prevent the sealing body from contacting the external environment, thereby improving the product's service life. Attached Figure Description

[0010] Figure 1 This is a cross-sectional schematic diagram of the rubber seal of this utility model;

[0011] Figure 2 This is a schematic diagram of the assembly of the rubber seal and the bearing of this utility model;

[0012] Figure 3 This is a schematic diagram of the bearing mounting groove and sealing groove of this utility model.

[0013] The markings in the diagram are as follows: 1. Inner ring of bearing; 2. Sealing body; 3. Protective cover; 4. Outer ring of bearing; 1-1. First arc groove; 1-2. Second arc groove; 1-3. End face of inner ring of bearing; 2-1. Arc boss of first mounting shank; 2-2. Arc boss of second mounting shank; 2-3. Anti-detachment barb; 2-4. First sealing lip; 2-5. Second sealing lip; 2-6. Third sealing lip; 2-7. Dustproof lip; 3-1. First protective lip; 3-2. Connection point; 3-3. Second protective lip; 4-1. First sealing surface of outer ring of bearing; 4-2. Second sealing surface of outer ring of bearing; 4-3. Third sealing surface of outer ring of bearing. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3 The present invention provides an embodiment of a rubber seal with a protective cover, comprising a sealing body 2 and a protective cover 3 disposed between an inner ring 1 and an outer ring 4 of a bearing. The protective cover 3 is disposed outside the sealing body 2 and is connected to the sealing body 2 by connection point 3-2. The sealing body 2 includes an installation handle, a sealing lip, and a dustproof lip. The installation handle is installed in the installation groove of the inner ring 1 of the bearing, and a barb 2-3 is provided on one front end of the installation handle. The sealing lip is located in the sealing groove of the outer ring 4 of the bearing, and the sealing lip is in contact with the upper and lower end faces of the sealing groove. The dustproof lip is located outside the sealing lip and is in contact with the inner end face of the outer ring of the bearing.

[0016] In this embodiment, the lower end of the sealing body 2 is provided with a downwardly extending mounting handle. The mounting handle is provided with a first arcuate boss 2-1, a second arcuate boss 2-2, and an anti-detachment barb 2-3. The first arcuate boss 2-1 is in compression fit with the first arcuate groove 1-1 in the mounting groove, the second arcuate boss 2-2 is in compression fit with the second arcuate groove 1-2 in the mounting groove, and the anti-detachment barb 2-3 is in compression fit with the surface of the mounting groove. The first arcuate boss 2-1, the second arcuate boss 2-2, and the anti-detachment barb 2-3 work together to prevent the seal from coming out of the mounting groove.

[0017] In this embodiment, the dustproof lip 2-7 and the first sealing surface 4-1 of the bearing outer ring are compressed and fitted together to prevent external dust and rainwater from entering the bearing. The sealing lip has a three-layer sealing lip structure, namely the first sealing lip 2-4, the second sealing lip 2-5, and the third sealing lip 2-6. The first sealing lip 2-4 and the second sealing lip 2-5 are simultaneously compressed and fitted together with the third sealing surface 4-3 of the bearing outer ring, and the third sealing lip 2-7 is compressed and fitted together with the second sealing surface 4-2 of the bearing outer ring to prevent grease leakage and to withstand grease pressure. When the seal is subjected to grease pressure, the seal will not deform and bulge, increasing the contact force between the mounting shank arc boss 2-2 and the arc groove.

[0018] In this embodiment, the protective cover 3 has a first protective lip 3-1 and a second protective lip 3-3 at both ends. The first protective lip 3-1 is in compression fit with the end face 1-3 of the inner ring of the bearing, and the second protective lip is in compression fit with the first sealing surface 4-1 of the outer ring of the bearing, thereby preventing damage to the seal of the bearing body during the sandblasting and zinc spraying anti-corrosion process. In addition, the protective cover is connected to the sealing body through the connection point 3-2. If the protective cover is only used for bearing anti-corrosion, it can be removed after the anti-corrosion is completed; if it is used to protect the sealing body, it does not need to be removed.

[0019] In summary, this rubber seal is a one-piece molded sealing ring, offering good product applicability. It can also be used in bearings with the mounting handle located on the outer ring. The production process can involve extrusion vulcanization or composite vulcanization by changing the protective cover material, demonstrating good adaptability to various production processes.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the scope of protection of the present invention in any way, and all technical solutions obtained by equivalent substitution or other means fall within the scope of protection of the present invention.

[0021] All parts not covered in this invention are the same as or can be implemented using existing technologies.

Claims

1. A rubber seal with a protective cover, characterized in that, The bearing includes a sealing body and a protective cover disposed between the inner ring and the outer ring of the bearing. The protective cover is disposed outside the sealing body and is connected to the sealing body by a connection point. The sealing body includes an installation handle, a sealing lip, and a dustproof lip. The installation handle is installed in the installation groove of the inner ring of the bearing, and a barb is provided on one front end of the installation handle to prevent detachment. The sealing lip is located in the sealing groove of the outer ring of the bearing, and the sealing lip is in contact with the upper and lower end faces of the sealing groove. The dustproof lip is located outside the sealing lip and is in contact with the inner end face of the outer ring of the bearing.

2. The rubber seal with a protective cover according to claim 1, characterized in that, The protective cover has a first protective lip and a second protective lip at its two ends, respectively. The first protective lip is in compression fit with the end face of the inner ring of the bearing, and the second protective lip is in compression fit with the end face of the outer ring of the bearing.

3. A rubber seal with a protective cover according to claim 1, characterized in that, The mounting handle is provided with a first mounting handle arc protrusion and a second mounting handle arc protrusion at intervals on one side, and the mounting groove is provided with a first arc groove and a second arc groove that cooperate with the first mounting handle arc protrusion and the second mounting handle arc protrusion.

4. A rubber seal with a protective cover according to claim 1, characterized in that, The sealing lip is provided with a three-seal lip structure, namely a first sealing lip, a second sealing lip and a third sealing lip. The first sealing lip and the second sealing lip are compressed and fitted to one side end face of the sealing groove, and the third sealing lip is compressed and fitted to the other side end face of the sealing groove.

5. A rubber seal with a protective cover according to claim 1, characterized in that, The sealing body is a one-piece molded structure.

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