CN208702929U - A kind of oil film bearing roller neck sealing device - Google Patents

Abstract

The utility model discloses a kind of oil film bearing roller neck sealing devices, for being mounted at the roll neck of filmatic bearing, the filmatic bearing is installed on roll and is set between the bearing block of roll end, the oil film bearing roller neck sealing device includes sealing cover and fixed water seal, sealing cover is fixed by bolts on the bearing block, fixed water seal has loaded on the body part on sealing cover and seals between the shoulder end of the roll sealing limb of cooperation, it further include thering is monoblock type to protect water seal, it is annular rubber sealing ring that the monoblock type, which protects water seal, it is made of connected mounting ring and protective ring, mounting ring sealing is set on the outer wall of the sealing cover, the end of the protective ring has sealing lip, protective ring is sealed with the outer wall of the sealing lip of its end and the roll shoulder to be cooperated.Axial excellent sealing can be realized in the utility model, while the bolt on sealing cover will not will not be generated sealing cover and be loosened or fall off the phenomenon that leading to seal failure by impingment corrosion.

Description

A kind of oil film bearing roller neck sealing device

Technical field

The utility model relates to a kind of oil film bearing roller neck sealing devices.

Background technique

Chinese invention patent (Authorization Notice No. CN105351524A), disclosing one kind, " filmatic bearing and its roll neck are close Seal apparatus ", the oil film bearing roller neck sealing device, for being installed at the roll neck of filmatic bearing, the filmatic bearing installation In roll and be sheathed between the bearing block of the roll end, the oil film bearing roller neck sealing device include sealing cover and Water seal, in being fixed on the bearing block, the water seal is sealed between the sealing cover and the roll sealing cover, In, the oil film bearing roller neck sealing device further includes wear ring；The wear ring has radial part and axial part；The radial direction Portion is fixed on the roll end face；By the radial part outer periphery, axially bending extends to form the axial part；The water seal With body part, the first sealing limb and the second sealing limb；The body part is fixed on the sealing cover；It is described first sealing limb by The body part part, which protrudes out, to be formed and end part seal is in the radial part；The second sealing limb is by the body part part It protrudes out and forms and end part seal is in the axial part.

Above-mentioned oil film bearing roller neck sealing device in the prior art passes through wear ring and its shoulder arrangement and water of formation The sealing cooperation of two sealing limbs of envelope, realizes double sealing.By above-mentioned double-channel sealing structure, can make sealing effect by The influence of axial float reduces, and can lead to a large amount of coolant liquids and dirt to avoid because of water seal dynamic sealing failure caused by axial float The generation of intrusion accident.But have the disadvantage that first is that sealing cover is fixed by bolts on the bearing block, it is above-mentioned Sealing structure can not stop the impact and corrosion of coolant liquid and dirt to bolt, and bolt can corrode damage in long-time use process It is bad, cause sealing cover to loosen and even fall off, until making seal failure；Second is that above-mentioned sealing structure in the prior art is to rely on roll The structure of end changes, i.e., has installed wear ring by screw, is in this way to increase difficulty of processing, also make the intensity of roll by A degree of influence.

Utility model content

Axial excellent sealing effect, which can be realized, again the technical problem to be solved by the present invention is to provide one kind to have Effect prevents the impact and corrosion of coolant liquid and dirt to bolt, and then will not lead to seal failure because sealing cover is loosened or fallen off Oil film bearing roller neck sealing device.

In order to solve the above technical problems, the oil film bearing roller neck sealing device of the utility model, for being mounted on oil film axis At the roll neck held, the filmatic bearing is installed on roll and is set between the bearing block of roll end, the filmatic bearing roller Neck sealing device includes that sealing cover and fixed water seal, sealing cover are fixed by bolts on the bearing block, fixed water seal tool There is loaded on the body part on sealing cover and seal between the shoulder end of the roll sealing limb of cooperation, further includes having entirety Formula protects water seal, and monoblock type protection water seal is annular rubber sealing ring, is made of connected mounting ring and protective ring, installs Ring sealing is set on the outer wall of the sealing cover, and the end of the protective ring has sealing lip, and protective ring is with the close of its end The outer wall for sealing lip and the roll shoulder seals cooperation.

As the improvement of the utility model, there is circumferential steel band slot on the excircle of the mounting ring, steel band slot is built-in There is lock ring steel band.

The monoblock type protection water seal mounting ring has close to the end of protective ring as a further improvement of the utility model, There is the radial water fender for being folded to inside, the end lap of the radial direction water fender is on the body part of the fixed water seal.

Oil film bearing roller neck sealing device using the above structure has sealing to match due to being utilized in sealing cover housing setting tool The monoblock type of conjunction relationship protects water seal, and protective ring is matched with the sealing lip of its end and the outer wall sealing of the roll shoulder It closes, therefore axial excellent sealing can be realized, while coolant liquid and dirt can be also blocked in the outside of sealing cover, Bu Huichong The bolt on sealing cover is hit, bolt will not be caused to corrode, and then seal failure will not be led to because sealing cover is loosened or fallen off. There is circumferential steel band slot, steel band slot is provided with lock ring steel band, can be by the monoblock type on the excircle of the mounting ring Protection water seal is securely fixed on the outer wall of sealing cover；Using monoblock type protection water seal mounting ring close to the end of protective ring Portion has the radial water fender for being folded to inside, skill of the end lap of the radial direction water fender on the body part of the fixed water seal After art feature, the purpose of secondary seal can be played, the infiltration of coolant liquid and dirt can be further prevented to filmatic bearing Damage.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is a kind of partial structural diagram of oil film bearing roller neck sealing device of the utility model.

Fig. 2 is the partial structurtes amplification signal that water seal is fixed in a kind of oil film bearing roller neck sealing device of the utility model Figure.

Fig. 3 is the partial structurtes amplification of monoblock type protection water seal in a kind of oil film bearing roller neck sealing device of the utility model Schematic diagram.

Specific embodiment

Referring to figures 1-3, the oil film bearing roller neck sealing device of the utility model, for being mounted on the roller of filmatic bearing At neck, the filmatic bearing is installed on roll 1 and is set between the bearing block 2 of 1 end of roll, and the filmatic bearing roll neck is close Seal apparatus includes that sealing cover 3 and fixed water seal 4, sealing cover 3 are fixed on the bearing block 2 by bolt 31, fixed water seal 4 With the sealing limb 42 for sealing cooperation loaded on the body part 41 on sealing cover 3 and between 5 end of shoulder of the roll 1, also It include monoblock type protection water seal 6, it is annular rubber sealing ring, by connected 61 and of mounting ring which, which protects water seal 6, Protective ring 62 is constituted, and the sealing of mounting ring 61 is set on the outer wall of the sealing cover 3, and the end of the protective ring 62 has sealing Lip 621, protective ring 62 is sealed with the outer wall of the sealing lip 621 of its end and 1 shoulder 5 of roll to be cooperated.The mounting ring 61 Excircle on there is circumferential steel band slot 611, steel band slot 611 is provided with lock ring steel band 612.The monoblock type protects water seal 6 Mounting ring 61 has the radial water fender 613 for being folded to inside close to the end of protective ring 62, and the end of the radial direction water fender 613 is taken It connects on the body part 41 of the fixed water seal 4.

Claims (3)

1. a kind of oil film bearing roller neck sealing device, for being mounted at the roll neck of filmatic bearing, the filmatic bearing is installed on It roll (1) and is set between the bearing block (2) of roll (1) end, the oil film bearing roller neck sealing device includes sealing cover (3) and fixed water seal (4), sealing cover (3) is fixed on the bearing block (2) by bolt (31), and fixed water seal (4) have The sealing limb of cooperation is sealed loaded on the body part (41) on sealing cover (3) and between shoulder (5) end of the roll (1) (42), it is characterised in that: further include thering is monoblock type to protect water seal (6), which protects water seal (6) for annular rubber sealing Circle is made of connected mounting ring (61) and protective ring (62), and mounting ring (61) seals the outer wall for being set in the sealing cover (3) On, the end of the protective ring (62) has sealing lip (621), protective ring (62) with the sealing lip (621) of its end with it is described The outer wall of roll (1) shoulder (5) seals cooperation.

2. oil film bearing roller neck sealing device as described in claim 1, it is characterised in that: the excircle of the mounting ring (61) The upper steel band slot (611) with circumferential direction, steel band slot (611) are provided with lock ring steel band (612).

3. oil film bearing roller neck sealing device as claimed in claim 1 or 2, it is characterised in that: the monoblock type protects water seal (6) mounting ring (61) has the radial water fender (613) for being folded to inside, the radial direction water fender close to the end of protective ring (62) (613) end lap is on the body part (41) of the fixed water seal (4).