A sealed water-proof bearing seat

Abstract

The application discloses a sealed waterproof bearing seat and belongs to the field of bearing accessories, which comprises a baffle ring, a circular ring, a seat body, a gland and a shaft sleeve; the two sides of a bearing inner ring are the baffle ring and the shaft sleeve; the circular ring and the gland are located on the two sides of a bearing outer ring; the circular ring is located on the outside of the baffle ring; the circular ring is internally provided with a pressing plate and two groups of skeleton oil seals; an oil ring is installed between the two groups of skeleton oil seals; the circular ring and the gland are provided with sealing elements between the circular ring and the gland and the seat body; the shaft sleeve is tightly pressed on the outside of the bearing inner ring; and the shaft sleeve and the gland are connected through a sealing structure. Compared with the prior art, the application has the definite sealing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to a tooling accessory, in particular to a sealed waterproof bearing seat. BACKGROUND

[0002] In the steel production industry, bearings are used in large quantities. However, the ordinary cold-rolled smoothing machine anti-wrinkle roller will have smoothing liquid in the smoothing process, and external cooling water when cooling.

[0003] The existing inner sealing design of the bearing seat is to design a sealing groove on the bearing gland, and a skeleton oil seal is installed in the groove. When the inner cavity of the bearing seat is filled with lubricating grease, the lubricating grease will be thrown out of the bearing seat along with the rotation of the bearing inner ring, while the external smoothing liquid / cooling water will enter the inside of the bearing seat along the skeleton sealing contact surface, causing oil emulsification and pollution, and the lubricating grease loses its lubricating performance, causing damage to the rotating bearing. In addition, the external liquid also carries impurities such as iron filings, causing the bearing to wear and damage.

[0004] Therefore, a new sealing structure design is needed, which not only prevents external cooling water from entering the inside of the bearing seat, but also seals the internal oil spill, so that the lubricating grease maintains a good working state, ensures the effective lubrication of the bearing, and prolongs the service life of the bearing. SUMMARY

[0005] The technical task of the present application is to solve the problems of the prior art, and to provide a sealed waterproof bearing seat, which completely solves the problem of water entering the bearing seat and ensures the use environment of the bearing to prevent the bearing from wearing and damaging.

[0006] The technical solution of the present application to solve the technical problem is: a sealed waterproof bearing seat, characterized by: including a baffle ring, a circular ring, a seat body, a gland and a shaft sleeve; the outer end of the baffle ring abuts against the inner side of the bearing inner ring; the circular ring is located outside the baffle ring; there is a pressing plate and two groups of skeleton oil seals inside, and an oil ring is installed between the two groups of skeleton oil seals; the pressing plate is installed on the circular ring and presses the skeleton oil seals and the oil ring; the outer wall of the oil ring has a circumferential oil guide groove and a radial oil hole; the upper end of the circular ring has an oil injection hole; the cavity of the seat body is used to accommodate the bearing, and each side of the outer ring of the bearing has a spacer ring; the cavity is provided with an annular oil groove, the upper wall of the seat body has an oil filling hole, and the lower wall has an oil discharge hole, the oil filling hole and the oil discharge hole are communicated with the annular oil groove; the circular ring is tightly pressed against the inner side of the bearing outer ring through the spacer ring, and the circular ring is connected with the seat body through bolts; the gland is connected to the seat body through bolts and tightly presses the outer spacer ring; the circular ring and the gland are provided with sealing elements between the seat body; the shaft sleeve is tightly pressed against the outer side of the bearing inner ring; the shaft sleeve and the gland are connected through a sealing structure.

[0007] Further, the circular ring has three stepped holes, and the middle stepped hole has a pressing plate.

[0008] Further, the outer end and the inner end of the baffle ring have outwardly folded edges, the innermost end of the hole wall of the circular ring is inserted below the outer edge of the baffle ring, and a gap is formed between the two.

[0009] Further, the outer wall of the baffle ring has annular water retaining protrusions

[0010] Further, the oil filling hole and the oil discharge hole of the seat body are exposed to the side wall of the seat body and are shielded by a partition ring.

[0011] Further, the seat body is convex, and both ends have fixing bolt holes for connecting with the rack.

[0012] Further, the sealing member is an O-shaped seal, and the outer wall of the outer end of the circular ring and the outer wall of the inner end of the pressing cover both have grooves at the positions in contact with the seat body.

[0013] Further, the outer wall of the pressing cover has an annular protrusion.

[0014] Further, the shaft sleeve has an annular groove corresponding to the annular protrusion, and the annular protrusion is inserted into the annular groove.

[0015] Further, the sealing structure has a V-shaped seal between the annular protrusion and the annular groove.

[0016] Compared with the prior art, the present application has the following outstanding beneficial effects:

[0017] 1. The oil seal provided in the present application can ensure that the lubricating oil in the bearing seat does not leak out;

[0018] 2. The addition of lubricating grease between the two seals can effectively prevent external water slag from entering the interior, causing the lubricating grease to fail and the bearing to wear, and the service life of the bearing is more than one year on average, and no water rusting has been found during disassembly and inspection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the assembly structure schematic diagram of the present application.

[0020] Figure 2 is the side view structure schematic diagram of the baffle ring of the present application.

[0021] Figure 3 is the three-dimensional structure schematic diagram of the baffle ring of the present application.

[0022] Figure 4 is the side view structure schematic diagram of the circular ring of the present application.

[0023] Figure 5 is a schematic diagram of a circular ring structure of the present application.

[0024] Figure 6 is a schematic diagram of a pressing plate structure of the present application.

[0025] Figure 7 is a schematic diagram of an oil ring structure of the present application.

[0026] Figure 8 is a schematic diagram of a seat body side structure of the present application.

[0027] Figure 9 is a schematic diagram of a seat body structure of the present application. DETAILED DESCRIPTION

[0028] The present application will be further described with reference to the drawings and specific embodiments. In the following, only certain example embodiments are described in detail. As those skilled in the art will understand, the described embodiments can be modified in various different ways without departing from the spirit or scope of the application. The drawings and description are therefore to be regarded as illustrative in nature and not restrictive.

[0029] In the following embodiments, unless specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0030] For better description, the roller 1 is taken as the reference, Figure 1 The left is inside, and vice versa. It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0031] As Figure 1As shown in the drawings, the present application is a kind of sealed waterproof bearing seat. It includes a baffle ring 2, a circular ring 4, a seat body 10, a gland 11 and a shaft sleeve 13. The two sides of the inner ring of the bearing 9 of the roller 1 are the baffle ring 2 and the shaft sleeve 13, and the circular ring 4 and the gland 11 are located on the two sides of the outer ring of the bearing 9.

[0032] As shown in the drawings, Figures 2-3 The baffle ring 2 is hollow and stepped, and the outer end of the baffle ring 2 is in contact with the inner side of the inner ring of the bearing 9, and the inner end has an outwardly folded outer edge. In the optimization scheme, the outer wall has a ring-shaped water retaining protrusion.

[0033] As shown in the drawings, Figures 4-7 The circular ring 4 is located outside the baffle ring 2. The circular ring 4 has three stepped holes inside, and the hole wall of the largest stepped hole at the innermost end is inserted into the outer edge of the baffle ring 2, and there is a gap between the two, which is used for entering and discharging external liquid. The middle stepped hole has a pressing plate 3, and the pressing plate 3 is distributed with multiple mounting holes along the circumference. The pressing plate 3 is mounted on the circular ring 4 by bolts. Two groups of skeleton oil seals 6 are installed in the smallest stepped hole at the outermost end, and an oil ring 5 is installed between the two groups of skeleton oil seals 6. The outer wall of the oil ring 5 has a circumferential oil guide groove and a radial oil hole. Relative to the position of the oil ring 5, the upper end of the circular ring 4 has an oil injection hole, through which the grease is added to the cavity between the two groups of skeleton oil seals 6. The pressing plate 3 is in close contact with the inner skeleton oil seal 6, and the skeleton oil seal 6 and the oil ring 5 are pressed by the pressing plate 3, so that the oil ring 5 can avoid the skeleton oil seal 6 from moving or tilting in the cavity. In this embodiment, the circumferential oil guide groove of the oil ring 5 has four radial oil holes on the circumference, and the grease can be uniformly added between the skeleton oil seals 6 through the circumferential oil guide groove and the radial oil hole.

[0034] As shown in the drawings, Figures 8-9 The cavity of the seat body 10 is used to accommodate the bearing 9, and each side of the outer ring of the bearing 9 has a spacer ring 8. The seat body 10 has multiple screw holes along the circumference to fix and install the circular ring 4 and the gland 11. The cavity of the seat body 10 is provided with an annular oil groove, and the upper wall of the seat body 10 has an oil filling hole and a lower wall has an oil discharging hole. The oil filling hole and the oil discharging hole are in communication with the annular oil groove, and are used for adding and discharging bearing grease. In this embodiment, the oil filling hole and the oil discharging hole are exposed to the side wall of the seat body 10 and can be blocked by the spacer ring 8.

[0035] The circular ring 4 is tightly pressed against the inner side of the outer ring of the bearing 9 by the spacer ring 8, and the circular ring 4 is connected together with the seat body 10 by bolts. In this embodiment, the seat body 10 is convex, and both ends have fixing bolt holes for connection with the rack.

[0036] The gland 11 is connected to the seat body 10 by bolts and is tightly pressed against the outer spacer ring 8. The outer wall of the gland 11 has an annular protrusion.

[0037] The circular ring 4 and the gland 11 are sealed with the seat body 10, and the seal in this embodiment is an O-ring 7. The outer wall of the outer end of the circular ring 4 and the outer wall of the inner end of the gland 11 are provided with grooves at the positions in contact with the seat body 10, and the O-ring 7 is arranged in the grooves, thereby achieving the gap sealing between the circular ring 4 and the gland 11 and the seat body 10.

[0038] The shaft sleeve 13 is sleeved on the shaft end of the roller 1, and the shaft sleeve 13 is tightly pressed on the outer side of the inner ring of the bearing 9. The shaft sleeve 13 and the gland 11 are connected through a sealing structure. In this embodiment, the sealing structure is that the shaft sleeve 13 is provided with a ring-shaped groove corresponding to a ring-shaped protrusion, the ring-shaped protrusion is inserted into the ring-shaped groove, and a V-shaped seal 12 is arranged between the ring-shaped protrusion and the ring-shaped groove.

[0039] The inner ring of the circular ring 4 is designed as a cavity, the width of the cavity can be used to install two groups of skeleton oil seals 6 and an oil ring 5, and then the pressing plate 3 is used for pressing, and the pressing plate 3 is installed on the circular ring 4 through bolts. The circular ring 4 is designed with an oil injection hole, through which the space between the two groups of skeleton oil seals 6 installed in the cavity is filled with lubricating grease, and an oil ring 5 is installed between the two skeleton oil seals, which can prevent the skeleton oil seals from moving or tilting in the cavity. The outer circumference of the oil ring 5 is designed with an annular oil groove, and the circumference of the oil groove is provided with four radial circular holes, so that the lubricating grease can be uniformly filled between the skeleton oil seals 6 through the oil groove and the circular holes. The two sides of the inner ring of the bearing 9 are the retaining ring 2 and the shaft sleeve 13, and the two sides of the outer ring of the bearing 9 are the circular ring 4 and the gland 11. The retaining ring 2 rotates with the inner ring of the bearing 9, and the circular ring 4 and the outer ring of the bearing 9 do not rotate. When the roller is cooled, the external cooling water enters the water inlet point 14 through the upper circumferential gap between the stationary circular ring 4 and the rotating retaining ring 2. Through this design, the water entering the water seal can be blocked outside the bearing 9 and discharged outside the seat body through the water outlet point 15 formed between the lower circumferential gap between the retaining ring 2 and the circular ring 4. By periodically injecting lubricating grease into the cavity 16 between the skeleton oil seals 6 through the oil injection hole of the circular ring 4, the external water can be effectively prevented from entering the inner cavity of the bearing 9, which plays an important role in ensuring the performance of the bearing lubricating grease.

[0040] It should be noted that the details not described in this embodiment are known in the art.

[0041] The above description is only for the purpose of illustrating specific embodiments of the present application, and various obvious modifications made by those skilled in the art without departing from the spirit and scope of the present application are within the scope of protection of the present application.

Claims

1. A sealed, water-proof bearing housing characterized by: It comprises a baffle ring, a circular ring, a seat body, a gland and a shaft sleeve. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing.

2. The sealed, water-proof bearing housing of claim 1, wherein: The circular ring is located at the outer side of the baffle ring.

3. The sealed, water-proof bearing housing of claim 1, wherein: The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween.

4. The sealed, water-proof bearing housing of claim 1, wherein: The circular ring has three stepped holes, and the middle stepped hole has a pressing plate.

5. The sealed, water-proof bearing housing of claim 1, wherein: The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing.

6. The sealed, water-proof bearing housing of claim 1, wherein: The circular ring is located at the outer side of the baffle ring.

7. The sealed, water-proof bearing housing of claim 6, wherein: The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween.

8. The sealed, water-proof bearing housing of claim 7, wherein: The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have outwardly folded edges, and the innermost end of the hole wall of the circular ring is inserted under the outer edge of the baffle ring, with a gap therebetween. The circular ring has three stepped holes, and the middle stepped hole has a pressing plate. The outer end of the baffle ring abuts against the inner side of the inner ring of the bearing. The circular ring is located at the outer side of the baffle ring. The outer end and the inner end of the baffle ring have

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