CN211259638U

CN211259638U - Sealing device of roller

Info

Publication number: CN211259638U
Application number: CN201921739812.2U
Authority: CN
Inventors: 朱安林; 范建华; 陈纬线; 郑永强; 邱宗学
Original assignee: Sichuan Bangyouda Technology Co ltd
Current assignee: Sichuan Bangyouda Technology Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-08-14
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a roller sealing device, which is shown in figures 1-3; comprises a dustproof ring A, a dustproof ring B and a dustproof end cover; the interior of the dust ring A is provided with a dust ring A concave cavity, a dust ring A boss and a dust ring A round hole. The utility model discloses a after the improvement, there is not a bit clearance between dust ring B hole and the main shaft to do not produce relative motion, changed in the past and produced relative motion and influence the use to the main shaft wearing out between dust ring and the axle, and effectually prevented the entering of stifled dust, protected the use of main shaft. There is not a little clearance between the excircle of dust ring A and dust cover and the roller inner chamber to do not produce relative motion, the effectual use that has protected the roller proves that this kind of dustproof construction is high-efficient, durable and the normal use of main shaft and roller through practice.

Description

Sealing device of roller

Technical Field

The utility model relates to a sealing field of roller, specifically a sealing device of roller.

Background

At present, rollers of a plurality of devices are generally sealed by annular rubber rings, the sealing structure is easy to leak when in work, the frictional temperature can also make the annular rubber rings age quickly and lose the sealing efficiency, and in addition, a gland is also easy to damage.

Through search, the utility model of patent No. CN201220106514.1 relates to a sealing device for a roller and a bearing bush of a calender, which comprises a roller, a bearing bush and a gland; the gland is fixedly connected with the bearing bush through a compression bolt; a sealing rubber strip provided with a V-shaped groove is arranged between the roller and the bearing bush; an annular lug is arranged in the bearing bush and is positioned in the V-shaped groove; the sealing rubber strip arranged between the roller and the bearing bush is provided with a V-shaped groove, so that the contact area between the sealing rubber strip and the bearing bush is reduced, the lubricating oil can easily wet the contact surface, and a layer of oil film is formed on the sealing surface to achieve the sealing effect.

Patent number CN 201420414331.5's utility model relates to a roller sealing device suitable for chemical fibre equipment, it includes roller (1) that combines together through screw (6) and macroaxis (11) tip, its characterized in that: roller (1) combines together through the ring platform of tip setting and the ring platform of macroaxis (11) axle head, installs oil retainer ring (4), fender ring (3) in proper order at roller (1) ring platform rear portion through the connecting piece, be provided with O type sealing washer (7) between the fitting surface of the interior anchor ring of oil retainer ring (4) and roller section of thick bamboo wall, be provided with first skeleton sealing washer (8) and second skeleton sealing washer (9) respectively between the ring platform facade that oil retainer ring (4) and roller tip set up and between outer shield (5) terminal surface.

The invention of patent No. CN201610146941.5 discloses a sealing device for a cooling roller, which comprises a movable sealing ring and a static sealing ring sleeved on a shaft head of the cooling roller, and a short water inlet cylinder arranged at the tail end of the shaft head of the cooling roller, wherein the short water inlet cylinder is arranged at the center of the cooling water inlet end and is internally embedded with 4 layers of bowl-shaped elastic metal gaskets arranged in pairs; the movable sealing ring is fixed on the shaft head through 6 fastening screws which are uniformly distributed, and O-shaped sealing rings are arranged at the step of the end head of the shaft head and inside the movable sealing ring; the static sealing ring is tightly close to the dynamic sealing ring and arranged at the tail end of the shaft head, an O-shaped sealing ring for contacting and sealing with the water inlet short cylinder is arranged on the side surface, and a magnetic sealing ring for contacting and fitting with a metal gasket in the water inlet short cylinder is arranged on the bottom end surface.

However, for the roller shaft head, a sealing device is needed, but the existing sealing device is complex in structure and not ideal in sealing effect.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a sealing device for a roller; comprises a dustproof ring A, a dustproof ring B and a dustproof end cover; the interior of the dust ring A is provided with a dust ring A concave cavity, a dust ring A boss and a dust ring A round hole. The utility model discloses a after the improvement, there is not a bit clearance between dust ring B hole and the main shaft to do not produce relative motion, changed in the past and produced relative motion and influence the use to the main shaft wearing out between dust ring and the axle, and effectually prevented the entering of stifled dust, protected the use of main shaft. There is not a little clearance between the excircle of dust ring A and dust cover and the roller inner chamber to do not produce relative motion, the effectual use that has protected the roller proves that this kind of dustproof construction is high-efficient, durable and the normal use of main shaft and roller through practice.

The utility model discloses a realize like this, construct the sealing device of a roller, its characterized in that: comprises a dustproof ring A, a dustproof ring B and a dustproof end cover; the inner part of the dust ring A is provided with a dust ring A concave cavity, a dust ring A boss and a dust ring A round hole; the dustproof ring B is provided with a dustproof ring B table surface A, a dustproof ring B table surface B, a dustproof ring B concave cavity A, a dustproof ring B table surface C, a dustproof ring B concave cavity B and a dustproof ring B table surface D; the dustproof end cover is provided with a dustproof end cover concave cavity, a dustproof end cover boss, a dustproof end cover end head (33) and a dustproof end cover round hole;

the table top B of the dust ring B corresponds to the cavity of the dust ring A, and the boss of the dust ring A corresponds to the cavity A of the dust ring B; the table top A of the dust ring B corresponds to the lower section of the boss of the dust ring A; the dustproof ring B table-board C corresponds to the dustproof end cover cavity, the dustproof end cover boss corresponds to the dustproof ring B cavity B, and the dustproof ring B table-board D corresponds to the lower section of the dustproof end cover boss.

The utility model has the advantages of as follows: the utility model provides a sealing device of a roller, which is provided with improvements and is shown in figures 1-3; comprises a dustproof ring A, a dustproof ring B and a dustproof end cover; the interior of the dust ring A is provided with a dust ring A concave cavity, a dust ring A boss and a dust ring A round hole. The utility model discloses a after the improvement, there is not a bit clearance between dust ring B hole and the main shaft to do not produce relative motion, changed in the past and produced relative motion and influence the use to the main shaft wearing out between dust ring and the axle, and effectually prevented the entering of stifled dust, protected the use of main shaft. There is not a little clearance between the excircle of dust ring A and dust cover and the roller inner chamber to do not produce relative motion, the effectual use that has protected the roller proves that this kind of dustproof construction is high-efficient, durable and the normal use of main shaft and roller through practice.

Drawings

FIG. 1 is a schematic view of the sealing device of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view showing the disassembled state of the dust ring A, the dust ring B and the dust cap of the present invention;

figure 4 is a schematic view of a roll.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 4, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a sealing device of a roller, which is provided with improvements and is shown in figures 1-3; comprises a dustproof ring A1, a dustproof ring B2 and a dustproof end cover 3; the dust ring A1 is internally provided with a dust ring A cavity 11, a dust ring A boss 12 and a dust ring A round hole 13; the dust ring B2 is provided with a dust ring B table-board A21, a dust ring B table-board B22, a dust ring B cavity A23, a dust ring B table-board C24, a dust ring B cavity B25 and a dust ring B table-board D26;

the dustproof end cover 3 is provided with a dustproof end cover concave cavity 31, a dustproof end cover boss 32, a dustproof end cover end head 33 and a dustproof end cover round hole 34;

the dust ring B table surface B22 corresponds to the dust ring A cavity 11, and the dust ring A boss 12 corresponds to the dust ring B cavity A23; the table surface A21 of the dust ring B corresponds to the lower section of the boss 12 of the dust ring A; dust ring B mesa C24 corresponds to in dust cap cavity 31, dust cap boss 32 corresponds to in dust ring B cavity B25, and dust ring B mesa D26 corresponds to the lower section of dust cap boss 32.

The sealing device of the utility model can increase the pressure required by sealing and protect the gland; in addition, due to the flexibility of the sealing rubber strip, the eccentric operation of the shaft can be well compensated, and the leakage rate of equipment is reduced. In addition, the sealing contact end face can be tightly attached without gaps for sealing, the structure is simple, and the sealing effect is good.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sealing device of a roller is characterized in that: comprises a dustproof ring A (1), a dustproof ring B (2) and a dustproof end cover (3); the interior of the dust ring A (1) is provided with a dust ring A concave cavity (11), a dust ring A boss (12) and a dust ring A round hole (13);

the dust ring B (2) is provided with a dust ring B table surface A (21), a dust ring B table surface B (22), a dust ring B concave cavity A (23), a dust ring B table surface C (24), a dust ring B concave cavity B (25) and a dust ring B table surface D (26);

the dustproof end cover (3) is provided with a dustproof end cover concave cavity (31), a dustproof end cover boss (32), a dustproof end cover end head (33) and a dustproof end cover round hole (34);

the table-board B (22) of the dust ring B corresponds to the cavity A (11) of the dust ring A, and the boss (12) of the dust ring A corresponds to the cavity A (23) of the dust ring B; the table surface A (21) of the dust ring B corresponds to the lower section of the lug boss (12) of the dust ring A; the dustproof ring B table top C (24) corresponds to the dustproof end cover concave cavity (31), the dustproof end cover boss (32) corresponds to the dustproof ring B concave cavity B (25), and the dustproof ring B table top D (26) corresponds to the lower section of the dustproof end cover boss (32).